$ as a Lie group, to see that its associated Lie algebra is (isomorphic to) $gl(n, \mathbb{R})$, an essential step is to get the equivalence of tangent planes $T_e(GL(n,\mathbb{R})) \cong T_e(gl(n,\mathbb{R}))$ (where $e$ is the neutral element). But this is trivial if we have in mind that $GL(n,\mathbb{R}) = \{A\in gl(n,\mathbb{R}) : det(A) \neq 0 \}$ and that $det$ is continuous, because then $GL(n,\mathbb{R})$ is automatically an open set of $gl(n,\mathbb{R})$.
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For the reasons of reputation points, I am unable to comment on KConrad's post. I up-voted his response, however, because he does make a great point about the Muir book(s). This one in particular is of great interest if you have any thoughts as to wondering why determinants (and development of them) was/is important:
The Theory of Determinants in the Historical Order of Development
I've gone through parts and it's dry, but thorough.
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Are there other books by Muir on determinants? – Mariano Suárez-Alvarez Aug 18 '10 at 21:38
Mariano: he has a book on determinants and then this history book comes in multiple volumes. – KConrad Aug 18 '10 at 21:41
From the realm of probability there are determinental and permanental processes. Terry Tao has a nice post about determinental processes here. For instance
"Examples of processes known to be determinantal include non-intersecting random walks, spectra of random matrix ensembles such as GUE, and zeroes of polynomials with gaussian coefficients."
I've not worked with these processes myself but I've heard enough seminar talks using them to say there is plenty of interest out there.
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Just an example from applied statistics where determinants are unavoidable (because they are used to define the relevant concepts. In design of experiments, one wants to choose "optimal" values of the regressor variables $x_1, \dots x_p$ used to estimate a linear regression model $Y=X \beta + \epsilon$, where $X$ is the design matrix, an $n \times (p+1)$ matrix with the first column consisting of ones, and row $i$ being the covariates used for experimental run $i=1, \dots, n$.
D-optimality defines the optimal design to be the one maximizing the determinant $\det X^T X$, under the practical restriction that the regressor values x's must belong to some set where the experiment is feasible to do.
One way of justifying this is that the requirement is equivalent to minimizing the volume of confidence ellipsoids, calculated under the normal model. Mostly, numerical optimization is used to construct such designs. (although there are many theoretical papers solving toy models).
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The area of an arbitrary triangle is most easily computed from its vertex coordinates as a 3x3 determinant (no square roots, trig, etc.). This generalizes to 3D (volume of a tetrahedron) and higher dimensions.
The cross product of two vectors a,b (essential tool in mechanics) is easily understood and memorized once one observes that its coordinates are 2x2 minor determinants of a 2x3 array formed by a and b. This too generalizes and provides a definition for cross product of n-1 vectors in n dimensions.
More generally, determinants combined with homogeneous coordinates are all one needs to derive elegant formulas for the basic operations of n-dimensional projective geometry, such as plane through 3 points, intersection of 3 planes. They also provide a coordinate representation (Pluecker coordinates) for lines in 3-space, or more generally for k-dim subspaces of n-dim prijective space.
The sign of the determinant of a matrix tells whether the rows are a leftor right-handed frame, and whether the corresponding linear map preserves or reverses orientations.
Determinants are more efficient than Gaussian elimination to compute the inverse of a 2x2 or 3x3 matrix, perhaps even 4x4. Unlike standard G.E. these formulas do not require division and may require fewer bits per number in intermediate results.
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PS. The area of a polygon with n vertices is easily computed as the sum of n-2 determinants of 3x3 matrices. This too generalizes to higher dimensions: the volume of a polyhedron with n triangular faces is the sum of n-3 deetrminants of 4x4 matrices. Similarly for the measure of a d-dimensional polytope with n simplicial facets. Note that the polygon/polyhedron/polytope does not have to convex or even simply connected, and it is not necessary to partition it in non-overlapping triangles/tetrahedra/simplices. – Jorge Stolfi Sep 25 '12 at 20:37
I quickly scanned the answers and didn't find the following:
Square matrices of order $n$ can be considered to be embedded in $\Bbb R^{n \times n}$. The determinant is a continuous function of the entries of the matrix, so the singular matrices are $\det^{-1}(0)$ and are therefore a closed set in $\Bbb R^{n \times n}$. Thus, there will be non-singular matrices arbitrarily close to a singular matrix in any convenient metric on $\Bbb R^{n \times n}$. Of course, they will have pretty ugly condition numbers.
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1) The Chern-Weil theory of characteristic classes is built upon determinants of functions of curvature forms of vector bundles. 2) Feynman path integrals require determinants (but typically in infinite dimensions).
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Hadrosaur Duck Bill Dinosaur Ankle Bone Judith River Formation Montana
Hadrosaur Duck Bill Dinosaur Ankle Bone Judith River Formation Montana
Hadrosaur Duck Bill Dinosaur Ankle Bone Judith River Formation Montana
Hadrosaur Duck Bill Dinosaur Ankle Bone Judith River Formation Montana
Hadrosaur Duck Bill Dinosaur Ankle Bone Judith River Formation Montana
Hadrosaur Duck Bill Dinosaur Ankle Bone Judith River Formation Montana
Hadrosaur Duck Bill Dinosaur Ankle Bone Judith River Formation Montana
Hadrosaur Duck Bill Dinosaur Ankle Bone Judith River Formation Montana
This ankle bone has a small ding, but is otherwise very complete. The Judith River Formation is a geologic formation located in western North America, primarily in Montana, USA, and Alberta, Canada. Here's a detailed description of the Judith River Formation. Age and Period: The Judith River Formation dates to the Late Cretaceous period, specifically the Campanian stage, approximately 80 to 75 million years ago.
Geographical Extent: The formation is primarily found in the northern Great Plains region of North America. It spans across the U. States of Montana, Wyoming, North Dakota, South Dakota, and extends into the Canadian province of Alberta. Stratigraphy: The Judith River Formation is part of the Belly River Group, which includes several other formations such as the Oldman Formation and the Dinosaur Park Formation. It sits stratigraphically above the older Cloverly Formation.
Sedimentary Deposition: It is primarily composed of sandstone, siltstone, mudstone, and shale, deposited in a variety of environments including river channels, floodplains, and swamps. Paleontological Significance: The Judith River Formation is famous for its rich fossil assemblage, which includes a variety of dinosaurs such as hadrosaurs (duck-billed dinosaurs), ceratopsians (horned dinosaurs), and theropods (meat-eating dinosaurs). Fossils of turtles, crocodiles, fish, and mammals have also been found. Paleoenvironment: During the Late Cretaceous, the Judith River Formation area was characterized by a warm, humid climate with extensive river systems and lush vegetation.
Discovery and Research: The formation has been extensively studied by paleontologists since the late 19th century, and continues to yield new fossil discoveries that contribute to our understanding of Late Cretaceous ecosystems in North America. Hadrosaur Tarsal, Cretaceous-Campanian, Judith River formation, Montana.
Hadrosaur Duck Bill Dinosaur Ankle Bone Judith River Formation Montana


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The hosting of sports events - whether large international events, or smaller niche interest events - has huge and long-lasting impacts on the local environment, economy and industry. Strategic Sports Event Management: Olympic Edition provides students and event managers with an insight into the strategic management of sports events of all scales and nature. The framework offers a planning process that can be used to understand the importance of a strategic approach, and shows how to implement strategies that can achieve successful sports events over the short and long-term. The text uses international case studies throughout to offer real-world insight in both larger and smaller events. Plus, in this new Olympic edition, a case study from the Beijing Olympiad is included in each chapter. Through this topical and timely addition to the text, we can understand the lessons to be learned by events mangers of events of all sizes. Written by an experienced author and using first-hand research the text looks at: the organizations involved such as the IOC, FIFA and IAAF, and their interactions with charities, the media and promoters the short-term and long-term benefits of the planning process evaluating the event, its impacts and legacies operational strategies including finance, ticketing, transport, venues, IT, communications, equipment and personnel the bidding process and what is required for a successful bid Strategic Sports Event Management: Olympic Edition builds on the substantial success of the first edition and is vital reading for students and practitioners alike.

source: openbmb/Ultra-FineWeb


Goats no more —
USDA gives biotech company record fine for animal welfare violations
Santa Cruz Biotech will have to give up using goats and rabbits.
USDA gives biotech company record fine for animal welfare violations
The USDA will impose a record fine against a company that supplies life science researchers with critical materials. Santa Cruz Biotechnology had been facing a variety of animal welfare charges related to lapses in the care of the research animals it kept. The $3.5-million fine comes as part of a settlement that will end the company's issues with federal regulators. While the company won't admit any wrongdoing, the settlement calls for it to lose its license to keep two species of research animals.
Santa Cruz Biotechnology creates antibodies to specific proteins, which researchers then purchase in order to isolate and identify those proteins. The antibodies themselves are often created in furry little factories: research animals that have received immunizations against the protein in question. These animals then continue making useful antibodies for as long as they live; the antibodies can be isolated using blood samples.
After some initial inspections suggested that Santa Cruz was keeping some animals alive after the point that they should be euthanized due to things like tumors, further searches revealed that the company was being generally shifty about its animal records keeping. An entire herd of goats was never declared in any of the company's paperwork, and the company once cleared out almost 4,000 research animals in advance of some USDA hearings.
The $3.5 million fine is a record for the USDA; in a statement, the Animal Welfare Institute said the previous record was only $300,000. But some of the other terms of the settlement are likely to be much more problematic from the company's perspective, as it will lose its license to keep rabbits and goats, two species covered by the US Animal Welfare Act. "By losing its research registration this month, SCBT will not be able to extract blood from animals covered under the Animal Welfare Act," an Animal Welfare Institute spokesman told Ars. "The company's license is revoked December 31, 2016, which will prevent SCBT from ever selling antibodies derived from Animal Welfare Act covered species in the US."
The company can still use other sources of antibodies, such as mice, rats, and chickens. But goats and rabbits can often produce far more material over the course of their lives than other species, and their antibodies are useful in some contexts where those from mice are not.
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high concentration iron remover advance electrolyte
Preparation of hydroxide ion conductive KOHlayered double
Preparation of hydroxide ion conductive KOHlayered double
The KOHLDH obtained was used as a hydroxide ion conductive electrolyte for all solid state Feair batteries. The cell performance of the Feair batteries was examined using a mixture of KOHLDH and iron oxide supported carbon as the negative electrode.
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High Alert Medications Concentrated Electrolytes IMSN
High Alert Medications Concentrated Electrolytes IMSN
High Alert Medications Concentrated Electrolytes . Learning Objectives Define and identify High Alert Medications Share our experiences / reporting Outline strategies to minimize risks Identify strategies to improve NOT a concentrated electrolyte)
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is iron an electrolyte? Answers
is iron an electrolyte? Answers
Sep 18, 20160183;32;iron is a metal that conducts electricity . But it is not classified as an electrolyte Definition of electrolyte An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water.
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The Purification of Copper Refinery Electrolyte Arsenic
The Purification of Copper Refinery Electrolyte Arsenic
concentration of nickel after pass into the tankhouse electrolyte centration in the copper refinery removal of all other impurities circulation system. e mail jehentp@aol. energy arsenic allowed in the copper cost. including leaching from concrete for the removal of arsenic from the to which the electrolyte is occasionally exposed.
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What is Metal Ion Concentration Cell Corrosion
What is Metal Ion Concentration Cell Corrosion
One type of concentration cell corrosion is metal ion concentration cell corrosion, which typically occurs in underground pipes and tanks. In metal ion concentration cells, the electromotive force (EMF) is the difference in the concentration of metal ions in the water in contact with the metal's surface.
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Leaching Copper Iron form Electrolyte
Leaching Copper Iron form Electrolyte
As to how we would take care of the iron in the electrolyte, we had to choose between controlling the iron (i.e., keeping it in the ferrous state) in the solution, and eliminating it from the solution. The removal of the iron appeared to offer the more attractive field.
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Pedialyte AdvancedCare Plus / Chilled Cherry Pomegranate
Pedialyte AdvancedCare Plus / Chilled Cherry Pomegranate
Pedialyte AdvancedCare Plus is an electrolyte drink that offers 33% more electrolytes* and is formulated to replenish more of the electrolytes you may lose due to vomiting, diarrhea, or extreme perspiration caused by excessive heat or prolonged exercise.
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Which System Do I Need to Remove Iron? Ask The Water Doctor
Which System Do I Need to Remove Iron? Ask The Water Doctor
While the infusion system can handle high amounts of iron and sulfur, it is best applied to water that is not higher than 8.0 to 10.0 ppm of iron or sulfur. I know one company that says their air system will remove up to 66 ppm of sulfur, but that is really pushing the envelope.
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CONTROL OF COPPER ELECTROLYTE IMPURITIES USING
CONTROL OF COPPER ELECTROLYTE IMPURITIES USING
contaminants from copper electrolyte bleed streams. Processes for the selective removal of sulfuric acid, nickel, arsenic, antimony, bismuth, and iron will be discussed. Considerable importance is given in controlling nickel and iron content in electrolyte by adopting the short bed ion exchange process for low cost acid purification system.
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REMOVING RUST WITH ELECTROLYSIS Workshop Companion
REMOVING RUST WITH ELECTROLYSIS Workshop Companion
REMOVING RUST WITH ELECTROLYSIS Rust is a two step process. When iron and steel tools are exposed to moisture and air, black oxide (Fe 3O 4) forms on the surface.The black oxide does not harm the tool, but with continued exposure it
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How To Make Electrolyte Truth about Metal Detecting and
How To Make Electrolyte Truth about Metal Detecting and
Thus, besides providing ions to form electrolyte, it also provides a secondary benefit in electrolytic derusting, as the rusted iron object likely contains these minor contaminants. All that is true; however, the washing soda is a skin irritant.
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Electrolysis of iron in a molten oxide electrolyte
Electrolysis of iron in a molten oxide electrolyte
window may exist where iron could be selectively reduced. 2.2 Formulation of an iron oxide concentration to carry out MIDEIO Finally, thermodynamic calculations were carried out with the thermo chemical software CECQSI [25] to take into account the effect of the chemical dissolution of iron oxide in the proposed electrolyte composition.
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(PDF) Electrolysis of iron in a molten oxide electrolyte
(PDF) Electrolysis of iron in a molten oxide electrolyte
The goal of this study was the measurement of the kinetic parameters of the electrochemical reduction of iron oxide into liquid iron metal in a molten oxide electrolyte, Al2O3 FeOx MgO SiO2, at
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How to determine electrolyte concentration in solutions?
How to determine electrolyte concentration in solutions?
A practical preparation and test for many elemental ions and minerals (sodium, calcium, zinc, iron etc.) and subsequent analyses will be to sample the ash content. Measuring the pH of the solution may help confirm further analyses, but should not be technically necessary.
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Cobalt and nickel removal from Zincor impure electrolyte
Cobalt and nickel removal from Zincor impure electrolyte
installations are in operation (e.g., Cu electrolyte purifi cation; PGM processing and others). Loading of the target ion is rapid with a sharp loading curve permitting high feed solution flow rates. Removal of the target ion to the desired level can be achieved in a single pass through the system.
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Quia Electrolytes, Nonelectrolytes, Strong and Weak
Quia Electrolytes, Nonelectrolytes, Strong and Weak
Identify each as a strong acid, strong base, weak acid, weak base, soluble salt or insoluble salt and if it is a stong electrolyte, a weak electrolyte, or a nonelectrolyte
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Copper Recovery by Solvent Extraction Techniques
Copper Recovery by Solvent Extraction Techniques
Because all the iron picked up in the extraction stage is stripped from the organic phase by the spent electrolyte it is necessary to take a bleed from the electrolyte to maintain the iron content of the electrolyte at the preferred level.
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Iron (Fe) and water Lenntech
Iron (Fe) and water Lenntech
Iron removal from water is mostly carried out in drinking water preparation, because mineral water contains high amounts of iron ions. These influence water colour, odour and turbidity. These influence water colour, odour and turbidity.
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Electrochemical micromachining An introduction
Electrochemical micromachining An introduction
attempt to equalise the concentration throughout the solution.4,9,15,23,27 In this case, the concentration of copper ions at the anode surface is much higher than the concentration of copper ions in the bulk of the solution; hence, the copper ions diffuse away from the anode towards the bulk solution and the copper cath ode.
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Electrolyte
Electrolyte
An electrolyte in a solution may be described as quot;concentratedquot; if it has a high concentration of ions, or quot;dilutedquot; if it has a low concentration. If a high proportion of the solute dissociates to form free ions, the electrolyte is strong; if most of the solute does not dissociate, the electrolyte is weak.
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E101 0013 4651/2011/158(10)/E101/5/$28.00 V C Electrolysis
E101 0013 4651/2011/158(10)/E101/5/$28.00 V C Electrolysis
Electrolysis of Molten Iron Oxide with an Iridium Anode with the effect of high electrolyte viscosity. Additionally, the spikes may be related to the formation of large gas bubbles in the electro lyte, the removal of which is hindered by the high viscosity, causing a large increase in the local electrical resistivity.
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Section 3 Management of TPN RxKinetics
Section 3 Management of TPN RxKinetics
Amino acid concentration pH of the formulation Dextrose concentration Concentration of the electrolytes Order of mixing The risk of TNA destabilization may be reduced by Keeping the final amino acid concentration at 2.5% or greater. Maintaining a final pH of 5.0 or above.
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Method for removing ferrous ions from acidic tinning
Method for removing ferrous ions from acidic tinning
Apr 06, _PHONE_;32;The term quot;concentrated tin and iron containing electrolytequot; means any electrolyte wherein the concentration of methanesulfonic acid and, preferably, also of tin and iron is higher than in a normal electrolyte used for tinning or tinplating.
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Is it possible to remove and separate electrolytes from a
Is it possible to remove and separate electrolytes from a
Conductivity measures voltage difference across a probe. A concentration would be measured in mg/L of a specific substance. Edit Conductivity would tell you the concentration of electrolytes, but would not be able to tell you what specific ions are present in solution.
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What is Metal


Gama Essenza | Máquinas de Café | Nespresso
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 VarB: "Null"
The essential of the Nespresso Range
 - Key benefits
 Coffee size: Espresso & Lungo
 - Fast heat up
 - Automatic off mode after 9 minutes
A revolution in the coffee world
Essenza intelligently combines a compact design and rare simplicity of use, to make each tasting a real work of art.
Make your Espresso and Lungo
with a simple pressure.
Warm up ultra fast water to a constant
temperature, cup after cup.
The iconic timeless
design of Nespresso
 - How to take care of my machine?
 ADD A LINK TO: Order a descaling kit now"
 2. Eject your capsules after each use
 3. Frequently change the water tank with fresh drinking water
 4. Regularly empty and clean the capsule container and drip tray
 - How high is the percentage of recyclable material used in Nespresso machines?
 On average, our machines have a 60% recyclability potential.
 And today, Nespresso Club Members can bring their machines back to wherever they bought them or in any electrical appliance store. In Europe,, the European Union's Waste Electrical and Electronic Equipment (WEEE) has been in force since 2003. It provides a framework in which consumers can return their used electrical and electronic appliances for recycling.
 - What does it mean 19 bars?
 - What does it mean the blinkings (or no light) of my Essenza machine?
 1. If slow and alternate blinkings (every 2 seconds) mean that the machine is in power save mode (stand-by). This mode is activated after 9 minutes of non-use.
 To exit mode, press on any coffee button. The machine is ready when buttons will stop blinking.
 It is possible to deactivate/activate the stand-by mode.
 - switch off the machine
 - press the 2 coffee buttons and hold them pressed while switching on the machine
 - stand-by mode is deactivated (buttons are blinking alternatively 3x) or activated (buttons are blinking alternatively 5x)
 2. If fast and regular blinking, it may indicate that the machine is in the descaling mode or the emptying system is activated. Please check the user manuals or go on the machine assistance videos ( ADD the link)
 3. Irregular blinking, please call the call center"
 - My Essenza machine has a poor or no coffee flow?
 1. If no coffee flow, please check that:
 - the mains supply cord is not trapped between the water tank and the machine
 - the water tank is sufficiently filled and properly positioned
 - your machine is turned on (lights ON)
 2. If poor flow, it means you need to descale your machine "
Do you have any other questions?
Aeroccino Milk Frother


Well designed databases are normalized to reduce the redundancy. This separates the data in a plethora of tables and you must rely on the JOIN operator to reconnect the dots between the data entries. JOINs will add complexity to the query and the syntax required to express the desired result can become messy and error-prone. In this final part of my Intro to Speedment guide, I will show you how JOINs can be expressed in a type-safe and intuitive manner with Java Streams and Speedment.
Before we can start using Joins, we need to add the JoinBundle to our Application. To do so, we need to add the following line to our ApplicationBuilder:
.withBundle(JoinBundle.class)
This gives us access to a JoinComponent, which is a Speedment component responsible for modeling Joins. We can access it like so:
final JoinComponent joinComponent = application.getOrThrow(JoinComponent.class);
Creating a simple Join
Creating Joins with Speedment is rather simple. As an example, let's say that we want to join the store and staff tables based on the id of the store and the store_id column in the staff table.
The JoinComponent contains a single method called from which takes in a table identifier. The table identifier tells Speedment which table to use as the base. In our case that would be the store table. All Managers hold TableIdentifier references to their respective tables, which can be statically accessed by calling Manager#IDENTIFIER.
To start building our Join, we can write the following:
joinComponent.from(StoreManager.IDENTIFIER)
This returns a JoinBuilder which is used to construct Joins and add them to our query. The table below shows the types of Joins that Speedment supports and their equivalent in Java:
SQL SPEEDMENT
INNER JOIN JoinBuilder::innerJoinOn
LEFT JOIN JoinBuilder::leftJoinOn
RIGHT JOIN JoinBuilder::rightJoinOn
CROSS JOIN JoinBuilder::crossJoinOn
All of the methods above (except crossJoinOn) take a Field as a parameter, which in turn is used to determine which column to join on and which table to include in the query. We'll be joining our tables using an inner join:
joinComponent.from(StoreManager.IDENTIFIER).innerJoinOn(Staff.STORE_ID)
The next step is to add a condition for our Join. We want to match the store_id column in the store table and the store_id column in the staff table. We're already joining on the store_id column in the staff table from our previous step, the only thing left to do is add an equality comparison with the store_id column in the store table. That can be done like so:
joinComponent.from(StoreManager.IDENTIFIER)
 .innerJoinOn(Staff.STORE_ID)
 .equal(Store.STORE_ID)
We're nearly done. Since we're using a builder pattern to construct Joins, you can repeat the same steps to add more. For our example we'll leave it as is and build the join:
final Join<Tuple2OfNullables<Store, Staff>> join =
 joinComponent.from(StoreManager.IDENTIFIER)
 .innerJoinOn(Staff.STORE_ID).equal(Store.STORE_ID)
 .build();
This Join object doesn't do anything on its own, but it can be seen as a reusable object to create Streams. A simple example would be:
join.stream().forEach(entry -> {
 entry.get0().ifPresent(store ->
 System.out.printf("Store ID: %d - ", store.getStoreId()));
 entry.get1().ifPresent(staff ->
 System.out.printf("Staff Name: %s %s%n", staff.getFirstName(), staff.getLastName()));
});
The output of the Stream above would be:
Store ID: 1 - Staff Name: Mike Hillyer
Store ID: 2 - Staff Name: Jon Stephens
And Speedment generated the following SQL:
SELECT A.'store_id',A.'manager_staff_id',A.'address_id',A.'last_update', B.'staff_id',B.'first_name',B.'last_name',B.'address_id',B.'picture',B.'email',B.'store_id',B.'active',B.'username',B.'password',B.'last_update' FROM 'sakila'.'store' AS A INNER JOIN 'sakila'.'staff' AS B ON (B.'store_id' = A.'store_id') []
Specifying Join constructors
The Join we created above contains a Tuple2OfNullables as its generic parameter, this is the default result holder when the .build() gets called. This variation of a Tuple is not the easiest to work with as it contains a lot of Optional instances.
The JoinBuilder has an overload of the .build() method which allows us to pass a Function with an appropriate number of inputs as a parameter. Let's say we still wanted to return a Tuple but wanted to avoid all of the Optional instances. We can do exactly that by using this overload:
final Join<Tuple2<Store, Staff>> join = joinComponent
 .from(StoreManager.IDENTIFIER)
 .innerJoinOn(Staff.STORE_ID).equal(Store.STORE_ID)
 .build(Tuples::of);
Since this new Tuple variant doesn't contain any Optional instances, the Stream we wrote earlier becomes a lot shorter:
join.stream().forEach(entry -> {
 System.out.printf("Store ID: %d - ", entry.get0().getStoreId());
 System.out.printf("Staff Name: %s %s%n", entry.get1().getFirstName(),
 entry.get1().getLastName());
});
Even though we've changed the result holder, the output and the generated SQL remains the same.
If the Tuple classes provided by Speedment don't suit your needs for some reason, you're always welcome to create your own result holders. In this example we're only using the store id and the name of the staff. We can create a class that will only store these things:
public final class JoinResultHolder {
 private final int storeId;
 private final String firstName;
 private final String lastName;
 public JoinResultHolder(final Store store, final Staff staff) {
 this.storeId = store.getStoreId();
 this.firstName = staff.getFirstName();
 this.lastName = staff.getLastName();
 }
 public int getStoreId() {
 return storeId;
 }
 public String getFirstName() {
 return firstName;
 }
 public String getLastName() {
 return lastName;
 }
}
We can use this new result holder like so:
final Join<JoinResultHolder> join = joinComponent
 .from(StoreManager.IDENTIFIER)
 .innerJoinOn(Staff.STORE_ID).equal(Store.STORE_ID)
 .build(JoinResultHolder::new);
Because we're returning only the properties we need, the Stream we created earlier becomes even shorter and cleaner:
join.stream().forEach(entry -> {
 System.out.printf("Store ID: %d - ", entry.getStoreId());
 System.out.printf("Staff Name: %s %s%n", entry.getFirstName(),
 entry.getLastName());
});
Join Filtering
In my previous article, I've talked about how you can apply certain conditions to your queries using Stream::filter. A similar thing can be done when working with Joins by using JoinBuilder::where.
Let's say we wanted to only retrieve entries that contained a first_name column with the value of Mike. We can do that like so:
final Join<JoinResultHolder> join = joinComponent
 .from(StoreManager.IDENTIFIER)
 .innerJoinOn(Staff.STORE_ID).equal(Store.STORE_ID)
 .where(Staff.FIRST_NAME.equal("Mike"))
 .build(JoinResultHolder::new);
If we execute this, you'll notice that our output only contains one entry now:
Store ID: 1 - Staff Name: Mike Hillyer
Looking at the newly generated SQL we can see that a WHERE clause has been added:
SELECT A.'store_id',A.'manager_staff_id',A.'address_id',A.'last_update', B.'staff


A simple concept built on sound foundations
Small teams
Mindstack.io divides your group into small teams of 3 or 4 people.
This feature allows you to enhance your participant's engagement in the work.
The small number of teammates increases the participants' sense of belonging to their team creating a sense of positive interdependence.
Everyone feels more responsible for creating an answer.
This dynamic of positive interdependence is developing within the teams, increasing the motivation of participants to collaborate and reflect on the problem.
This team size also encourages rich and diversified interactions.
Mindstack.io sessions are always structured around the same objective:
provide an opportunity for everyone to learn and take part in the discussion.
Mindstack.io offers a thoughtful process, organizing the work in stages, in order to allow each team to progress, step by step, towards the construction of a common answer.
Step 1
Step 2
Step 3
Monday, 1:00 PM
Wenesday, 1:00 PM
Friday 1:00 PM
Time is an essential element of Mindstack.io.
By defining clear deadlines for each step, participants have the necessary freedom to learn at a time that suits them best, to reflect and contribute at their own pace, and to be encouraged to do the work required.
Everyone knows exactly what is expected of them. This increases the sense of individual responsibility of all participants.
Competition vs cooperation
Mindstack.io plays positively with group dynamics to create a balance between competition and cooperation.
Participants are thus more engaged in the progressive development of the collective answer.
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text:
Orderhive brings to you an easier way to organize shipments, by letting you create folders as desired and grouping shipments into them. You can now see a new folder-wise structure for shipments, where you can create multiple folders other than the default common folder. You can simply select and move shipment/s (single or bulk) to desired folders.
Here's how organize Shipments in folders in Orderhive:
Add folders: (Orderhive account) Shipments → '+' Add Folders → Name → Create
Move shipments: (Orderhive account) Shipments → Select Shipments/ → More → Move To → Select Folder → Move


text:
Affiliation: University College London Medical School, Gower Street, London WC1E 6BT, United Kingdom.
In this review, we analysed the role of stem cell and growth factor therapy on rotator cuff tendon repair. The injury to the rotator cuff tendons can be sustained in numerous ways and generally causes significant pain and disability to the affected individual. Following surgical repair of ruptured rotator cuff tendons re-rupture rates can be as high as 20-60%. In order to augment this repair process and to decrease the re-rupture rates tissue engineering methods can be used. These include the use of stem cells and growth factors. Mesenchymal stem cells are stem cells which can differentiate into a variety of connective tissue cell types and can therefore be utilised in repairing tendons. So far there has only been one human study using stem cells in rotator cuff tendon repair. This study has produced a positive result but consisted of only 14 patients and lacks a control group for comparison. Similar work has also been done using growth factors. Both individual and combination growth factor therapy have been used to improve rotator cuff tendon repair. However, the results so far have been disappointing with growth factors. For the purpose of future studies better techniques should be explored with regards to the delivery of stem cells and growth factors as well as the possibility of combining growth factor and stem cell therapy to improve repair rates.


text:
A little known fact about the Statue of Liberty
Input text: A Trump is -4 feet left of and -4.8 foot above and -6 inches in front of the statue of liberty. The ground is water. The background is city. The statue is -10 feet above the ground. the statue of liberty leans 66 degrees to the left.The sun is silver. a tugboat is right of and -1.8 feet in front of the statue of liberty. it faces right. it is -2 feet above the ground. a 25.9 feet tall and 0.5 feet wide [hair] tube is -3 feet to the left of and -7 feet above the boat. it leans 38 degrees to the right. a small man is -7 feet left of and -5 feet above the boat. he faces left.


text:
For overvoltage protection LENOIR ELEChas developed a new device: the CPS.
This is a device whose original concept gives it very interesting characteristics i.e. :
- high energy transfer,
- fi ring on 1 polarity of the voltage or 2,
- fi ring voltage adjustable (pre-set in factory/low or high),
- visual indication of operation,
- remote signalling by microswitch (option),
- manual re-set after operation.
In certain countries, standards exist for the protection of personnel when voltages higher than 50 V or 100 V appear at accessible points. The device can be used on both AC and DC circuits.

source: m-a-p/FineFineWeb


Home » Health Did You Knows » This Is Why You Should Stop Eating Tilapia Immediately
This Is Why You Should Stop Eating Tilapia Immediately
The most important ingredient in fish – fish oil, which is not found in this fish
why tilapia is not good for your health
1. This fish is very popular because of its availability and inexpensiveness. However, you should learn everything you can possibly know about this fish before consuming it.
The consumption of fish may increase inflammation that are occurring in the body. Increased inflammation can lead to heart problems, asthma and other serious diseases. Consumption of this fish is worse than eating bacon or a hamburger. We eat fish to consume omega-3 fatty acids that reduce the risk of suffering a heart attack, but this fish does the opposite -. Which increases the chances of having a heart attack
2. The consumption of farmed tilapia increase the risk of developing cancer by 10 times because it contains contaminants. Hazardous ingredients in these fish are often added to their feed. Actually, the feed given to farmed fish contains chicken feces. Pork and duck feces are also one of the main food for farmed fish.
3. The tilapia also contains high amounts of pesticides and antibiotics. The owners of fish farms give antibiotics to protect them from diseases that can spread easily because the farms are too full of fish. Pesticides are given to farmed fish against sea lice, and this pesticide can even kill wild salmon if the pesticide is consumed accidentally.
4. healthy nutrients commonly found in fish are very low in farmed fish. omega-3 fatty acids tilapia are much less useful for our body than omega-3 fatty acids found in wild fish varieties. Tilapia and other farmed fish also contain less protein than other varieties of wild fish. Furthermore, farmed fish contain more omega-6 acids, which can cause inflammation in the body if consumed in high doses.
5. Health problems, especially cancer are caused by a dangerous toxin called dioxin. This dangerous chemical is found in farmed fish. It is very difficult to clean our body of dioxin after its entry. You can stay in the body for up to 11 years.
Source: http: //choosehealthylife.com/stop-eating-tilapia/
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kaizerpowerelectronics.dk
Triboluminescence
What is triboluminescence? Triboluminescence is the name of the optical phenomenon when asymmetrical crystal bonds are broken in f.ex. the glue that keeps envelopes closed, the light emission comes from the separation and reunification of electric charges between the two surfaces that the glue is broken between. T ...


text:
||Goal attribution to inanimate moving objects by Japanese macaques (Macaca fuscata)
Atsumi, Takeshi,
Koda, HirokiMasataka, Nobuo
72017-01-05, Springer Nature
Humans interpret others' goals based on motion information, and this capacity contributes to our mental reasoning. The present study sought to determine whether Japanese macaques (Macaca fuscata) perceive goal-directedness in chasing events depicted by two geometric particles. In Experiment 1, two monkeys and adult humans were trained to discriminate between Chasing and Random sequences. We then introduced probe stimuli with various levels of correlation between the particle trajectories to examine whether participants performed the task using higher correlation. Participants chose stimuli with the highest correlations by chance, suggesting that correlations were not the discriminative cue. Experiment 2 examined whether participants focused on particle proximity. Participants differentiated between Chasing and Control sequences; the distance between two particles was identical in both. Results indicated that, like humans, the Japanese macaques did not use physical cues alone to perform the discrimination task and integrated the cues spontaneously. This suggests that goal attribution resulting from motion information is a widespread cognitive phenotype in primate species.


Home » Questions » Unexperienced [ Ask a new question ]
Plotting the PAR: CONCLUSION
Plotting the PAR: CONCLUSION
Asked by: Guest | Views: 33
Total answers/comments: 1
Guest [Entry]
"The PAR or Philippine Area of Responsibility was plotted by PAGASA so that our National Weather Office would have an exact area to monitor for weather disturbances. Once a weather disturbance becomes to near the borders of the PAR or crosses it, it could become a national or provincial issue of safety.
Some weather disturbances affecting our neighboring countries may pass near our territory but they are not declared as a threat to the people since they are not within the PAR. The duration of storms, low pressure areas, and tropical depressions are also monitored by checking if they are still within the PAR or how close they are to crossing the outermost borders of the PAR.
You must remember that even if it is called Philippine Area of Responsibility, there are portions of that overlap with the areas of responsibility of other countries such as Japan, Malaysia, Palau, and Taiwan. There are also Philippine territories that are not included in the PAR and that is the southernmost parts of Tawi-Tawi."


text:
The Nobilta™ is a multi-functional processing unit for high speed, precision, powder mixing, particle surface modification and shape enhancement. Particles are combined into composite materials in a dry process without the use of a binder by applying mechanical force.
- Processing of a wide range of powders from nano to micron size
- Compact design; high energy efficiency
- Particle design and particle treatment in nano range
- Ideal for processing heat sensitive, sticky and abrasive materials
Composing – Nano-scaled particles are permanently fused onto the surface of micron-scaled particles without binders, combining material properties of different particles into one particle to enhance chemical reaction, flowability, heat resistance, electric performance and solubility.
Precision Mix (Dispersion) – enabling distributive and dispersive mixing in one apparatus to improve colour, tone, reactivity, calcinations ability and mechanical intensity.
Shape enhancement (Sphericalization) – Improving round shape and reducing BET surface area for enhanced flowability and packing density.
Typically used for high value materials and products such as toner, pharmaceuticals and fine ceramics the Nobilta™ has become established as a recognised route for applications across a range of industries.
- Energy Storage: Improve packing density and sintering ability for secondary batteries. Improve capability of fuel cells
- Copy & Photos: Improved flowability of Toner; surface modification of carrier particles
- Pigments: Improve colour tone by high dispersion
- Pharmaceuticals: Particle design for Drug Delivery System (control solubility, high dissolution), improve colour tone
- Chemicals: Design of functional resin (nano filler + resin etc) and high performance catalysts
- Cosmetics: Controlled refraction; improved flowability by surface modification
- Architecture: High resistance to environment, high temperature resistance and high intensity material, gradient functional composite
- Environment: Improvement of catalytic performance, effective high temperature treatment and high stability to environment
- Equipped with water cooled jacket for even operating temperatures
- Easy to dismantle for inspection, maintenance and cleaning
- Hard faced and ceramic lined components


text:
QUALIFI Level 4 Diploma in Aesthetic Procedures for Skin Rejuvenation
The aim of the QUALIFI Level 4 Diploma in Aesthetic Procedures for Skin Rejuvenation and associated Certificates is to provide learners with an understanding of the knowledge and skills to carry out advanced beauty therapy/aesthetic procedures, enabling learners to gain the necessary skills and essential underpinning knowledge to work commercially as a Practitioner. The Diploma will also provide opportunities for learners to develop the necessary occupational skills and competencies to progress directly into employment or to further study. Learners will develop practical skills for a career in Advanced Beauty Therapy/Aesthetic field.
The qualification is worth 58 credits and includes the following units.
- Health, Safety, and Hygiene for Aesthetic Procedures
- Client Consultation for Aesthetic Procedures
- The Biochemistry and Biology of Cells
- Skin Morphology and the Inflammatory Response
- Skin Disorders and Diseases Relative to Aesthetic Procedures
Units (Optional – Must Choose 3)
- Skin Rejuvenation using Micro Needling
- Skin Rejuvenation using Superficial Chemical Peels
- Skin Rejuvenation using Mesotherapy
- Skin Rejuvenation using Dermaplaning
- Skincare to Support Aesthetic Procedure
The qualification has been designed to be accessible without artificial barriers that restrict access. For this qualification, applicants must be aged 18 or over, who have achieved a Level 3 qualification or apprenticeship in Beauty Therapy or have equivalent qualifications and/or substantial industry experience for direct entry to Level 4.
* Those without a Level 3 in Beauty or equivalent can come on to the Level 4 but must complete AP301 Skincare to Support Aesthetic Practice Procedure module.


text:
The taxonomy and seasonal population dynamics of some Magela Creek flood plain microcrustaceans (Cladocera and Copepoda)
Technical Memorandum 18
Supervising Scientist, 1986
ISBN 0 644 01349 4
- The taxonomy and seasonal population dynamics of some Magela Creek flood plain microcrustaceans (Cladocera and Copepoda) (PDF 1398 KB)
About the report
Six Magela Creek floodplain billabongs were sampled between September 1981 and January 1983 to determine the seasonal population dynamics of littoral and limnetic microcrustaceans. Thirty-seven cladoceran and four copepod species were identified amongst littoral weedbeds and several unidentified harpacticoid copepods and ostracods were also found. By comparison only 6 cladoceran and 4 copepod species were found in limnetic areas.
Littoral species generally attained their highest densities during the mid-Wet to Early-dry seasons. The number of open water species present in samples generally increased with the progression of the Dry season. Towards the end of the Dry season, a simplification of the limnetic species assemblage occurred in some billabongs, perhaps in response to adverse changes in water quality.
A guide to the cladoceran and copepod species found so far in the area is provided.

source: HuggingFaceFW/fineweb-edu


text:
There are already a few good resources for doing time series data with Cassandra. This post tries to build upon those posts, so feel free to go read them now… I'll wait. :)
So basic summary of the above is, create a CF where each row corresponds to a date range of data for a single metric. Often times, you'll see people suggesting making each bucket being a days worth of data. If you're storing 5 minute averages, then that's 288 columns/row.
Here's an example CF for storing network interface counter statistics:
create column family InterfaceStatDaily with column_type = Standard and key_validation_class = AsciiType and comparator = LongType and default_validation_class = LongType and comment = 'Storage for 5min interface stats';
So I create rows like:
InterfaceStatDaily['myhost|eth0|ifInOctets|20121001'] = [ [ _PHONE_, 19245 ], [ _PHONE_, 23475 ], [ _PHONE_, 173445 ], ... ]
Would create a row for the ifInOctets counter on the network interface eth0 for myhost for Oct 01, 2012. The first value (at 00:00:00) is 19245 and the second value at 00:05:00 is 23475, etc. Notice I'm storing column names as LongTypes using Epoch time… this is much more disk space efficient then Time-UUID's.
In my case, according to this calculator a column with a LongType name & value would be 31 bytes. However, we're really only storing 12 bytes of data (4 bytes epoch + 8 byte value) so the vast majority of our disk space is overhead. In my case, a years worth of data for would be ~1.173TB/year (12 * 31 * 60 * 24 / 5 * 365 * 30000) just for the 5min values assuming 30K ports * 12 stats/port and doesn't include replication (at RF=3 you're talking nearly 3.6TB/year!), row/sstable overhead for indexes or bloom filters or creating aggregates. Even for a database like Cassandra which scales really well, this is stupid- especially if you're trying to keep your nodes down to the 300-400GB recommended limit.
Using Vector Compression
The solution is to add a second Column Family:
create column family InterfaceStatCompressed with column_type = Standard and key_validation_class = AsciiType and comparator = LongType and default_validation_class = BytesType and comment = 'Vector compressed storage for 5min interface stats';
And then write your rows like this:
InterfaceStatCompressed['myhost|eth0|ifInOctets|2012'] = [ [ _PHONE_, Vector[19245, 23475, 173445, ... ], [ _PHONE_, Vector[823445, 1366, _PHONE_, ... ], ... ]
First you'll notice the row key is slightly different, instead of a day, the last part of the row key is the year. The column name is the start of each day in Epoch time. The next thing, is for a given column, rather then storing a single value, we store a vector of a days worth of data as a byte stream of 2,304 bytes (8 bytes/value * 288 values = 2,304).
Note, I wrote the above as Vector[xxx,xxx,xxx,…], but really what that means is converting all your values to 64bit integers, concatenating them together and writing them as a single value like:
Which is the actual bytes for the first 3 values for the Vector[19245, 23475, 173445, …].
Note: Our first idea was to write the data as an AsciiType of comma separated array of values. But it turns out this is less efficient then the above solution unless your data is very sparse or is storing small values as a comma separated array of 32bit hexadecimal values takes up to 2,591 bytes.
The advantage here is that the amount of overhead you're dealing with is greatly reduced because now there are only 365 columns/year instead of 105,120. Compacting a day's worth of 5min values in a single column as a byte vector and storing a years worth of data this way would result in only ~305GB/year (before replication, etc). This would require 2,327bytes/col (15 + 8 + 2,304), but that would store a day's worth of 5min values (288) a savings of 74%. (~850,000Bytes stat/interface/year or ~10MB interface/year). Even better news: column families like this are highly compressible so you'll get even better results if you enable compression!
If you have sparse data, for missing individual values I just used a 'magic' value of 2**64-2 as a placeholder. If for some reason, the entire days worth of data is zero (a common occurrence for me), I store the single value 2**64-1 rather then a vector of 288 copies of 2**64-2.
Bringing It All Together
The downside is of the InterfaceStatCompressed Column Family is that you have to do a read/write of a full day's worth of data. That is usually great for reads since most applications like graphing require reading multiple datapoints anyways, but for writing the current values as you poll them, having to constantly read the current days worth of data, add the new datapoint and write the new column would kill our write performance.
The solution and best balance then is to write the current values to InterfaceStatDaily as they come in, and then once a day read the previous day's complete row and write it to InterfaceStatCompressed and then delete the original row. That gives you the best of both worlds: high read and write throughput and reasonable disk space usage.
Of course, the down side of this is now you have your data in two different CF's with different layouts. Hence you'll need to wrap whatever API access layer you're already using (Hector, Pycassa, etc) to intelligently query the two CF's based on whatever date range you're querying and return the values in a single format. However, considering the significant disk space savings, I found this to be well worth doing!
Work arounds for Time-UUID
Note: Often you'll see recommendations to use Time-UUD's because if there is a chance of two values getting the same timestamp as one write will overwrite the other. This can happen for a click stream (two users clicking on the same link at the same time), but won't happen for things like interface stats. If your timestamps can't be written at some kind of consistent interval (like 5 minutes in this example) then the solution above probably won't work for you.
Ok, so what if you need to write your data at Time-UUID or your timestamps aren't written at a specific interval? Well you can still use this solution, but with a few changes:
- Specify InterfaceStatDaily to use TimeUUID as your column comparator
- When writing InterfaceStatCompressed sum() all the values for each 5 minute interval and write that at set intervals.
Obviously doing this you will loose sub-5minute resolution (or whatever time interval you choose) in the compressed data, but you won't be storing all those extra timestamps. If your needs require high precision timestamps for recent data and less precision for historical data then this may be a great work around.
If you don't need high precision for current data, then one way to limit the differences in your CF's and the wrapping API's is to use Epoch column names with Counters for InterfaceStatDaily. That way every time someone clicks on a URL (or whatever you're counting) in a 5 minute time period, you just increment the appropriate counter. Note that counters may not work well for every use case, so be sure to research their limitations before using them.
The key thing is when you run your daily vector compression job, you want to balance your time interval resolution to how often you actually are getting data. Ie: if you're getting writes approximately every 60 seconds, don't use 5 second resolution or the vast majority of your storage space will be the 2**64-2 place holders indicating no data!


-6M GY-GPS6MV2 GPS module
The NEO6MV2 GPS module comes with 4 connections: RX, TX, VCC and GND, which is quite easy to incorporate with using SoftwareSerial on an Arduino Uno or a serial interface on an Arduino Mega. The power supply of the NEO6M should be 3.6V at max according to the datasheet. The typical China-produced breakout-boards contain a voltage regulator so that 3-5V VCC so it does not harm the board. Since the digital pins also produce 5V, the voltage divider is used on the receivers RX channel since this is not regulated.
RX (or RXD) - receive pin. Connected to Arduino board TX pin.
TX (or TXD) - transmit pin. Connected to Arduino board RX pin.
VCC - power supply. Can be connected to +5VDC or +3.3VDC pin of Arduino board.
GND - ground. Connected to Arduino board GND pin.
PPS - Pulse per second. This is an output pin on some GPS modules. Generally, when this pin toggles, once a second, you can synchronize your system clock to the GPS clock.
Wiring
Step by Step instruction
 1. Do wiring.
 2. Open Arduino IDE.
 3. Plug your Adruino Uno board into your PC and select the correct board and com port
 4. Find your I2C address. Each device has an I2C address that it uses to accept commands or send messages. Load the sketch over at _URL_ and follow the instructions to use it. By opening up the Serial monitor at 9600 baud after you upload the sketch, Arduino will scan the address range looking for a reply. The scanner can detect it (0x78, 0x7A,0x3C,0x3D) (for example, in our case 0x3C)
 5. Modify the bold part in the line display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
 6. Verify and upload the NEOGPS_OLED_sketch to your Adruino Uno.
 7. You will see the GPS clock (date and time) and GPS position on LCD display. It will take some time before you will get the proper data. Time will be updated first, then date and then GPS position (when blue led on GPS module starts to flash).
Summary
We learnt how to connect NEO-6M GY-GPS6MV2 GPS module, white 0.96" I2C OLED display module and use them to display GPS clock (local time and date) and GPS position.
Notes:
 - It takes for about half a minute or one to read the data by the GPS module initially when you run it, so do not panic for this it's very usual.
 - It happens in some case that it is unable to detect the data that might be the issue with antenna, so unplug the antenna( if it is detachable) and attach it again.
 - If, code says "Check Connection", then you should definitely check it twice, before giving up. Also, sometimes interchanging the TX and RX pins is preferable and surprisingly works.
Code
The TinyGPS++ library allows you to get way more information than just the location, and in a simple way. Besides the location, you can get: date, time, speed, course, altitude, satellites, hdop and so on. You can read more about the TinyGPS++ library here.
Library
 - All libraries attached on the begining of the project description
 - TinyGPS++ library. Download, unzip and add to libraries in our PC, for example C:\Users\toshiba\Documents\Arduino\libraries. This link you can find in Preferences of Adruino IDE program which installed in your PC.
 - SoftwareSerial library included in Arduino IDE. The library has the following known limitations: If using multiple software serial ports, only one can receive data at a time;Not all pins on the Mega and Mega 2560 support change interrupts, so only the following can be used for RX: 10, 11, 12, 13, 14, 15, 50, 51, 52, 53, A8 (62), A9 (63), A10 (64), A11 (65), A12 (66), A13 (67), A14 (68), A15 (69);Not all pins on the Leonardo and Micro support change interrupts, so only the following can be used for RX: 8, 9, 10, 11, 14 (MISO), 15 (SCK), 16 (MOSI);On Arduino or Genuino 101 the current maximum RX speed is 57600bps; On Arduino or Genuino 101 RX doesn't work on Pin 13.
 - Adafruit_SSD1306 library. Download, unzip and add to libraries in our PC, for example C:\Users\toshiba\Documents\Arduino\libraries. This link you can find in Preferences of Adruino IDE program which installed in your PC. You can read about it here.The SSD1306 driver library is used to initialize the display and provide low level display functions.
 - Adafruit_GFX library. Download, unzip and add to libraries in our PC, for example C:\Users\toshiba\Documents\Arduino\libraries. This link you can find in Preferences of Adruino IDE program which installed in your PC. You can read about it here.The GFX library provides graphics functions for displaying text, drawing lines and circles, etc.
 - Wire library included in Arduino IDE.
Sketch
 - See attachments on the begining of this project
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Splunk® Enterprise
Managing Indexers and Clusters of Indexers
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How Hadoop Data Roll works
Hadoop Data Roll does not work with buckets with journalCompression set to zstd.
After you configure an index as an Archive, a number of processes work to move aged data into archived indexes:
1. A saved search | archivebuckets automatically runs once an hour on the search head. This is a custom command packaged with the archiver which is implemented as the Python script archivebuckets.py.
2. archivebuckets queries the local REST endpoints to discover which indexes should be archived, and where to archive the indexes.
3. archivebuckets copies the Hadoop Data Roll jars into its own app directory, then launches distributed searches for each provider for the indexes to be archived.
The search used in this step is | copybuckets, which is a custom command automatically implemented by copybuckets.py.
4. The information for the index and its provider is fed to the search.
5. For each indexer, Splunk Enterprise copies the knowledge bundle needed to run the search.
6. On the indexer, copybuckets launches a Java process, with the same entry point (the SplunkMR class) used for Splunk Analytics for Hadoop searches.
7. Splunk Enterprise passes the info about providers and indexes to the Java process using stdin.
8. When the Java process sends events back to Splunk Enterprise, it writes them to stdout, and the custom search command (copybuckets.py) writes them back to the search process using stdout.
9. The Java process logs these actions to the splunk_archiver.log file.
10. The Java process checks all buckets in the designated indexes. If the buckets are ready to be archived, the process determines whether the buckets already exist in the archive. It accesses the archive using the provider information.
11. If the bucket has not yet been archived, the bucket is copied to a temporary directory at the archive. Once the bucket it is completely copied, and a receipt file added, it is moved to the correct folder in the archive.
12. If the bucket is previously archived, any new data that has reached it's archived date is copied into that bucket.
13. Archived buckets are ready to be searched in Splunk Web.
About the Hadoop Data Roll processes
Two search commands are defined to correspond with python scripts:
archivebuckets -> archivebuckets.py
copybuckets -> copybuckets.py
The implementation of the Hadoop Data Roll process uses the following processes:
process action process name notes
search process on the Search Head/Search Scheduler archivebuckets This is the search activity, including scheduling, that occurs on the Search Head
Python process on the Search Head archivebuckets.py
Search process on an indexer copybuckets <JSON describing indexes> This is all of the Search Activity that occurs in the Indexer.
Python process on an indexer copybuckets.py
Java Virtual Machine process on an indexer Hunk Java code This process ties the other processes together, and does the following:
1. Writes files to HDFS
2. logs information to $SPLUNK_HOME/var/log/splunk/splunk_archiver.log
3. Writes events to stdout, which is piped back to the Splunk search process | copybuckets <JSON describing indexes>
4. Information written in the Splunk Search process becomes an event returned by the search, and you can see these events in Splunk Enterprise with the search command | archivebuckets forcerun=1.
How the processes work together
The Hadoop Data Roll search framework strings these processes together and pipes them as follows:
1. stdout of the python process on an indexer copybuckets.py to stdin for the search process on the indexer archivebuckets.
2. stdout of | copybuckets <JSON describing indexes> to stdin to python process on the Search Head archivebuckets.py.
3. stdout of archivebuckets.py into search scheduler for the search process on the Search Head archivebuckets.
4. The python process on the Search Head copybuckets.py script pipes stdout of Hadoop Data Roll Java code (Java Virtual Machine process on an indexer) to stdout to the search process on the indexer copybuckets <JSON describing indexes>.
At the end of this process, anything that the Hadoop Data Roll Java code (JVM process on an indexer) writes to stdout becomes events returned from the search scheduler | archivebuckets.
Finalizing or aborting archiving process
When Hadoop Data Roll pauses or finalizes a search, this information must be passed to downstream processes.
For example, if the search process on an indexer shuts down, the search could kill the child process, which then prevents the indexer Python process from shutting shut down gracefully. If the Python process is using a shared resource such as a database connection, or an output stream to HDFS, this could cause failure and possible loss of data.
To resolve this, the search process lets the child process decide what to do should the search process suspend or shut down. If the search process on an indexer is paused, it stops reading from its pipe to the Python process on an indexer. When this happens, the Python process on the indexer can no longer write to the pipe once the buffer fills up.
The Python process is able to determine that the search process on an indexer still exists, but is paused.
If the search process on an indexer is stopped/finalized, it shuts down and the pipe to the Python search process is broken. This is how the Splunk custom search commands know that the upstream search has stopped running. This occurs whether the search is shut down cleanly due to user action, or shut down violently due to an upstream crash.
If the archiving Java process in the indexer finds a broken pipe to the indexer search process, it logs that information, but continues to finish archiving until the buffer is full. if this is not desired, simply kill the Java process.
Last modified on 07 March, 2020
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This documentation applies to the following versions of Splunk® Enterprise: 6.5.0, 6.5.1, 6.5.2, 6.5.3, 6.5.4, 6.5.5, 6.5.6, 6.5.7, 6.5.8, 6.5.9, 6.5.10, 6.6.0, 6.6.1, 6.6.2, 6.6.3, 6.6.4, 6.6.5, 6.6.6, 6.6.7, 6.6.8, 6.6.9, 6.6.10, 6.6.11, 6.6.12, 7.0.0, 7.0.1, 7.0.2, 7.0.3, 7.0.4, 7.0.5, 7.0.6, 7.0.7, 7.0.8, 7.0.9, 7.0.10, 7.0.11, 7.0.13, 7.1.0, 7.1.1, 7.1.2, 7.1.3, 7.1.4, 7.1.5, 7.1.6, 7.1.7, 7.1.8, 7.1.9, 7.1.10, 7.2.0, 7.2.1, 7.2.2, 7.2.3, 7.2.4, 7.2.5, 7.2.6, 7.2.7, 7.2.8, 7.2.9, 7.2.10, 7.3.0, 7.3.1, 7.3.2, 7.3.3, 7.3.4, 7.3.5, 7.3.6, 7.3.7, 7.3.8, 8.0.0, 8.0.1, 8.0.2, 8.0.3, 8.0.4, 8.0.5, 8.0.6, 8.0.7, 8.1.0
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text:
Relief from pain is not only a measure of good health for you, but also your doctor.
A new study finds that doctors experience the same euphoria as a patient when they help relieve their pain.
"Doctors feel rewarded when they are responsible for someone's relief," said study author Karin Jensen, a researcher at Massachusetts General Hospital. "The better they are at taking the perspective of the patient, the more reward and subjective value they will report."
Jensen and a team of researchers at Harvard University examined the brain activity of 18 doctors who were deceived in thinking they were alleviating their patient's pain or letting them suffer.
To make the research more authentic, doctors were given a dose of thermal pain as well as a fake electronic device that was said to relieve the pain. Researchers then monitored their brain activity using a functional resonance imaging machine that monitored each doctor's brain activity.
Doctors were then asked to examine two patients, who were planted for the study in addition to completing a survey on how they empathized with their patients. Each doctor observed their patient during treatment through mirrors inside an fMRI scanner. Doctors then were asked to use either the fake electronic device to ease their patient's pain or choose a control button that would result in no impact.
When the doctors saw patients relax after activating the device, the doctor's brain activity associated with the placebo demonstrated that they felt rewarded.
Researchers found that doctors who empathized more with their patients experienced a more rewarding feeling when their patient was relieved.


Your Postion: Home FQA
A: 1)How to stick the protector.
Q: 1. Take out the film to match with the mobile screen and be sure of the stick direction before stick.
 2. Wipe up the screen dust and dirt with dedicated lens cleaner.
 3. Wipe up the invisible dust with the electrostatic dust collection film.
 4.Pull down the Red 1 layer to 1cm of the film, and then stick slowly to the screen, be care of your fingers touching the screen.
 5. When you tear down the layer 1, wipe up the screen with the dedicated lens cleaner when the film is entirely attached to the screen, and then tear down the Black 2 layer.
Send message
TOP


for a better solution though as this one is a bit heavy.
Edit: WARNING! This doesn't work in IE when selector is a string.
$.isEmptyObject('hello') // FALSE in Chrome and TRUE in IE
share|improve this answer
How often do you find yourself calling $() with an empty object as an argument? – nnnnnn Dec 22 at 11:24
_USER_ Actually never (I don't use jQuery anymore). But I guess 3 years ago I had a case of exposing an API that would take a selector and return the number of elements for that selector. If another dev would pass in an empty object, it would incorrectly respond with 1. – Oleg Dec 22 at 15:03
$(selector).length && //Do something
share|improve this answer
You could use this:
 exists: function() { return this.length }
if($(selector).exists()){do something}
share|improve this answer
I had a case where I wanted to see if an object exists inside of another so I added something to the first answer to check for a selector inside the selector..
// Checks if an object exists.
// Usage:
// $(selector).exists()
// Or:
// $(selector).exists(anotherSelector);
jQuery.fn.exists = function(selector) {
 return selector? this.find(selector).length : this.length;
share|improve this answer
You can save a few bytes by writing:
if ($(selector)[0]) {... }
This works because each jQuery object also masquerades as an array, so we can use the array dereferencing operator to get the first item from the array. It returns undefined if there is no item at the specified index.
share|improve this answer
How about:
function exists(selector) {
 return $(selector).length;
if (exists(selector)) {
 // do something
It's very minimal and saves you having to enclose the selector with $() every time.
share|improve this answer
I like this approach – Akmur Mar 18 at 14:13
if ( $('_TAG_').size() > 0 ) { //do something }
size() counts the number of elements returned by the selector
share|improve this answer
_USER_ I don't know where you get your information from, but.size() does nothing more than return.length. There's a reason it's deprecated – Ian Jun 3 '13 at 21:41
You are correct, but calling.length, being a property, requires slightly less overhead than a function call to.size(). My bad. – Furbeenator Jun 5 '13 at 18:30
I'm using this:
 $.fn.ifExists = function(fn) {
 if (this.length) {
Execute the chain only if a jQuery element exist - _URL_
share|improve this answer
Is $.contains() what you want?
jQuery.contains( container, contained )
The $.contains() method returns true if the DOM element provided by the second argument is a descendant of the DOM element provided by the first argument, whether it is a direct child or nested more deeply. Otherwise, it returns false. Only element nodes are supported; if the second argument is a text or comment node, $.contains() will return false.
Note: The first argument must be a DOM element, not a jQuery object or plain JavaScript object.
share|improve this answer
NOW it is an answer – mplungjan Dec 17 '13 at 8:49
i always use
if ( $(selector)[0] ){}
thats nice and short
share|improve this answer
The reason all of the previous answers require the.length parameter is that they are mostly using jquery's $() selector which has querySelectorAll behind the curtains (or they are using it directly). This method is rather slow because it needs to parse the entire DOM tree looking for all matches to that selector and populating an array with them.
The ['length'] parameter is not needed or useful and the code will be a lot faster if you directly use document.querySelector(selector) instead, because it returns the first element it matches or null if not found.
function elementIfExists(selector){ //named this way on purpose, see below
 return document.querySelector(selector);
/* usage: */
var myelement = elementIfExists("_TAG_") || myfallbackelement;
However this method leaves us with the actual object being returned; which is fine if it isn't going to be saved as variable and used repeatedly (thus keeping the reference around if we forget).
var myel=elementIfExists("_TAG_");
// now we are using a reference to the element which will linger after removal
console.log(elementIfExists("_TAG_")); /* null */
console.log(myel); /* giant table lingering around detached from document */
myel=null; /* now it can be garbage collected */
In some cases this may be desired. It can be used in a for loop like this:
/* locally scoped myel gets garbage collected even with the break; */
for (var myel; myel = elementIfExist(sel); myel.getParentNode.removeChild(myel))
 if (myel == myblacklistedel) break;
If you don't actually need the element and want to get/store just a true/false, just double not it!! It works for shoes that come untied, so why knot here?
function elementExists(selector){
 return!!document.querySelector(selector);
/* usage: */
var hastables = elementExists("table"); /* will be true or false */
if (hastables){
 /* insert css style sheet for our pretty tables */
setTimeOut(function (){if (hastables &&!elementExists("_TAG_"))
 alert("bad table layouts");},3000);
share|improve this answer
In JavaScript you can do it this way :
if(document.querySelectorAll('*')!=null) { // It exists }
share|improve this answer
I stumbled upon this question and i'd like to share a snippet of code i currently use:
$.fn.exists = function(callback) {
 var self = this;
 var wrapper = (function(){
 function notExists () {}
 notExists.prototype.else = function(fallback){
 if (!self.length) {
 return new notExists;
 if(self.length) {
 return wrapper;
And now i can write code like this -
 alert ("it exists");
 alert ("it doesn't exist");
What's more exciting about this stuff is how it's written in CoffeeScript:
$.fn.exists = (callback) ->
 exists = _USER_
 callback.call() if exists
 new class
 else: (fallback) ->
 fallback.call() if not exists
share|improve this answer
I find OP's original approach not only to be much more minimal but more elegant than this. Seems like overkill to write this much code when OP's method is shorter, and doesn't involve callbacks. – Lev Aug 5 at 7:31
For simple cases - you're right. But for more complex situations involving a lot of code on both cases i think my approach is better. – Eternal1 Aug 5 at 7:38
else as a property name will fail in some older browsers. – cookie monster Aug 14 at 17:34
protected by Andrew Barber Apr 8 '13 at 3:55
Would you like to answer one of these unanswered questions instead?


text:
coax such as RG303 if you are running high power, especially at 80 meters and above. RG8 will also be
OK but it is larger in diameter so more coax will be required. You can make your own calculations on this one. I wouldn't recommend foam RG8 coax as it may deform on such a small diameter.
However, if you use a larger diameter tube, that will work with RG8 and since the diameter is larger, the impedance will increase accordingly. Use the standard inductance equations.
I made a solenoid balun with 25 feet of RG303 teflon (RTM), about 20 turns on a 4.5" tube, and the first measured resonance was about 24 MHz. This balun would be great, even at high power, for
80 through 15 meters. Again, about a 5:1 frequency range.
Some purists will say to space the turns, for example, by the diameter of the coax. This maybe less of a problem for flash over if lightning hits. I'll leave that up to you to decide. However, using the info above, this would calculate (using standard inductor equations) to about 33 micro Henries of inductance for space windings (and an impedance of only 375 Ohms), well below that normally suggested for a 160 meter balun. Hence, more coax or a larger diameter tube is required.
Finally, what about laying the balun on the ground. I'd recommend against that simply because that at least may lower the self resonance frequency. This is the old story that you shouldn't place objects near (1-3 diameters away) an inductor (which is what a solenoid balun is on the outside shield).
I hope this info is of interest and help. There will always be the disagreements over whether to use ferrite beads, ferrite toroids or solenoid baluns. No one size fits all! However, for those interested
Understanding and Solving RF Interference Problems Page 49 in designing their your own solenoid type baluns, I've hopefully given some info on how to "roll your own."
Happy holidays and best of DX in 2004.
Understanding and Solving RF Interference Problems Page 50
Appendix 5 –Grounding and Lightning Protection
Grounding for lightning protection is another one of those widely misunderstood topics. This author is not an expert on lightning protection, so the following discussion should be taken only as a starting point for lightning protection, not a final recommendation.
What Lightning Is Lightning is the discharge of an electrical charge (that is, a potential difference) that builds up between some region of space and some other region of space. Air acts as an insulator, but breaks down (that is, arcs over) at some high voltage. The arc-over is a huge current pulse with a high rise time and short duration.
Spectrum and Waveshape Any short duration pulse consists of an infinite number of harmonics, the relative strength of which is determined by the rise time of the pulse and the impedance of the current path. It is a major mistake to think of lightning as DC. Yes, there's a DC component, but
IEEE data shows that most of the energy in a lightning strike is in the MF spectrum (300 kHz-3
MHz). So when designing a ground system for lightning protection, we need to think AM Broadcast – according to IEEE data, on average, the energy in lightning has a VERY broad peak around 1
MHz (so broad that there's lots of energy at 2-4x that frequency and at 0.2x that frequency).
Common Bonding The single most important element of a lightning protection system is the bonding together of the reference planes (that is, circuit common) for every element of the system.
A bond can be defined as a low impedance connection that is mechanically and electrically robust.
At frequencies above a few hundred Hz, the impedance of virtually any conductor is dominated by inductance, not resistance. Bonding conductors should be "beefy" so that they don't melt, and as short as possible (so that they have low inductance).
Earth As a Reference Plane The earth is an important reference plane. We can think of earth as a plane of infinite size, but whose conductivity varies widely, depending on the chemistry and geology of the soil (or rock) and its moisture content, from fairly good to very poor. Conductivity can vary significantly between points that are very close together for a variety of reasons, both natural
(the presence of rocks, streams, earth stratification) and manmade (excavation, land filling, building structure, buried pipes).
Lightning Protection The most fundamental elements of lightning protection are:
A low impedance path for lightning to its reference plane (earth) that does not include our house or ham station
Common bonding of our equipment so that, in the event of a lightning strike, the potential difference between equipment is minimized
Protection devices on power and signal wiring that is connected to equipment input and outputs
Earth Electrodes An earth electrode is an electrical connection to the soil, whether intentional or unintentional. A ground rod is an example of an intentional connection – what the NEC calls a
"made" electrode. Any building or installation is likely to have many unintentional connections to earth – building steel, conductive cold water pipe, conductive gas pipe. We can reduce the imped-
ance to earth of an electrode by increasing the surface area in contact with the soil, but at lightning frequencies (radio), the major component of the impedance our ground system is the wire between
the electrode and our equipment!
UFER Electrodes Concrete can be a good electrical conductor or good insulator, depending on its formulation. Most concrete used in construction is a fairly good conductor. A Ufer (named for its inventor) is an electrical conductor encased in conductive concrete to form a made electrode.
Structural steel on a concrete foundation acts as a Ufer, including a ham radio tower sitting on concrete that is electrically conductive.
Ground Electrodes in Difficult Soil Ground electrodes don't necessarily need to be vertical rods – if rocky soil makes vertical rods difficult, consider multiple shorter rods, or burying wires or conductive plates horizontally. The main reason for going deep below the surface is to get to in contact
Understanding and Solving RF Interference Problems Page 51 with moist (low resistivity) soil.
Bonding Earth Electrodes All earth electrodes that lightning might view as associated with our house or ham station should have an effective low impedance bond between them. The impedance to earth of a ground system will be the parallel combination of all earth electrodes (ground rods, building steel, tower footing, cold water, radials), plus the inductance of the wire connecting them. The capacitance between a big radial field and the earth can be a significant component of lowering that impedance in the 300 kHz – 3 MHz region where the energy of lightning is concentrated.
Star Bonding is designed to provide a low impedance path for lightning current to earth that does not include the building, the electrical system, or equipment within the building. It also provides a single path to earth for lightning current induced in building wiring, and minimizes the potential difference between equipment within the building in the case of a strike. In a star-bonded system:
All the earth electrodes are bonded together
All equipment and systems within a building are bonded together
A single connection is made between the earth electrode system and the building systems
(the center of the star)
All external wiring is bonded to the center of the star – the power system neutral, shunt mode lightning protection devices, cable TV entry, the shields of antenna wiring, the base of a tower, etc.
Power System Bonding In North America, building codes generally require that an electrical installation conform to the National Electrical Code (NEC). A few cities (including Chicago, Los Angeles) have their own codes that are generally similar to NEC. These codes apply to premises systems – that is, buildings and facilities connected to mains power. They do not apply to systems that are strictly portable – for example, a motor generator in a vehicle, and they do not apply to power distribution systems outside buildings (that is, the power company's wiring). They do apply to a portable generator or solar system that is connected to premises wiring. Some industrial systems, such as those running heavy equipment are exempt from some of these requirements. See _URL_
In general, North American building codes require:
that all earth electrodes shall be bonded together
that a bond shall be made from the earth electrode system to a single point on the power system. In a residential system, the point of connection must be to the neutral bus at the service entrance
that one conductor of the power system (the neutral) be bonded to earth. NEC refers to the
neutral as "the grounded conductor"
that a third wire, called the equipment ground, or "green wire" (protective earth or PE in the
UK) is carried to every mains power outlet, and via the power cord to exposed metal in all connected equipment
The sole function of the equipment ground is to blow a fuse or circuit breaker in the case of a fault
(failure of equipment or wiring), thus protecting personnel from electrical shock and preventing fires. An equipment ground should never intentionally carry current (that is, serve as a return for
load current). That is the function of the neutral.
The bonding requirements of these standard building codes are based on solid engineering.
They have been formulated and refined over the years by some of the best engineering minds on the planet, including many who are very aware of the RF implications of the requirements.
There is no conflict


What is a cultivated Australian accent?
The cultivated Australian English accent is usually produced with tighter vowel durations. Getting this correct, depends on the impact of your regular speech patterns. So if you tend to speak with a broader accent, you'll want to make your vowel lengths shorter on these vowels: /eɪ/, /iː/ /aɪ/, /oʊ/, /aʊ/ & /u:/.
What is a cultivated accent?
What are the three types of Australian accent?
Unlike some European and early-settled countries like the USA, the Australian accent is made up of just three different variations: broad, general, and cultivated. These variations are not as easy to pick up on as, say, the cockney, geordie, and southern accents of England, but the subtleties are there.
How would you describe an Australian accent?
The Australian accent is famous for its vowel sounds, absence of a strong "r" pronunciation and the use of an inflection – or intonation – at the end of sentences, which can make statements sound like questions. According to Felicity, the way vowels are pronounced is the most peculiar feature of Australian English.
IT IS INTERESTING: Best answer: Can foreigners learn to drive in Australia?
What is the Australian accent called?
It is prevalent nationwide but is especially common in rural areas. Examples of people with this accent are Steve Irwin, Julia Gillard and Paul Hogan. In Australia, this dialect is sometimes called Strine (or "Strayan", a shortening of the word Australian), and a speaker of the dialect may be referred to as an Ocker.
Why is Australian accent so weird?
If you grew up in Australia, your accent is shaped by the history of Australia's European settlement; if you grew up in New Zealand, your accent is shaped by a different history, so it sounds different. It's automatic for us to talk in a similar way to the people around us and this feature is really strong in kids.
Where is the strongest Australian accent?
Ockers have the strongest Australian accent, and they're found in all corners of Australia. Regional Tasmania (srs). Australian accents do not vary a lot, compared to other English speaking countries.
How do Aussies say hello?
The average Australian greets with a simple Hey/Hello/Hi. Avoid saying "G'day" or "G'day mate" when first meeting someone as this can sound strange or patronising coming from a foreigner. Many Australians greet by saying "Hey, how are you?".
How did Aussies get their accent?
According to Richards, the beginning of our Australian accent emerged following the arrival of European settlers in 1788. "It emerged from a process called levelling down because you had all these people who came here on 11 ships from different dialect areas, regional dialect areas across England," he said.
IT IS INTERESTING: Question: How much of Australia's land is used?
Which English accent is closest to Australia?
"The basis of our accent is Southern British. Americans, in particular, often confuse us. They think the cockney accent is the Australian accent."
Why do Australians say mate?
In Australia, a 'mate' is more than just a friend and is a term that implies a sense of shared experience, mutual respect and unconditional assistance.
What is the Australian word for friend?
100 Australian Slang Words & Phrases
Aussie slang word/phrase Meaning
Maccas McDonalds
Manchester Sheets / Linen etc
Mate Friend
Mozzie Mosquito
What is Australian English called?
Australian English (AuE, AuEng) is the set of varieties of the English language native to Australia. Although English has no official status in the Constitution, Australian English is the country's national and de facto common language.
Australian English
How old is the Australian accent?
1788: The Australian accent, at least according to modern experts, began developing right after the arrival of European settlers and convicts.
Is Australian English closer to American or British?
Australian English follows British spelling very closely but many common words are spelt differently in American English. Despite being spelt differently, the meaning of the word is the same. Australian and American English have different ways of spelling certain words, such as those ending with 'yse' or 'ise'.
Do Americans have accents?
You've likely heard the words "Standard American English," for describing certain accents that lack distinguishing sounds. Well, apparently, that's not real. Every single American has an accent.
Going to Sydney


text:
java get Object id
In java there is no any specific method that provides us the object's ID. But each object has its own unique hash value which can be treated as unique Id for that object.
To explain this concept here we are getting the hash code for the two object and this can be done by using the hashCode() method on both of the created objects.
String ind = new String("India");
System.out.println("Hash code for String object: " + ind.hashCode());
Above line of code creates a new String object "ind" and its hash code can be get by the method hashCode().
GetObjectId getObj = new GetObjectId();
System.out.println("Hash code for Class object: " + getObj.hashCode());
In above lines we have created a new object of GetObjectId and for its hash code we will be using hashCode() method. Here is the full example code of GetObjectId.java as follows:
Hash code for String object: 70793495
Hash code for Class object: _PHONE_
Recommend the tutorial


AAA, NAC, Guest Access & BYOD
How do I perform a graceful reboot on an NAC appliance configured in High Availability or Hot Standby?
Product and Software: This article applies to all ECS product and software versions.
If at any point the need to reboot any of the NAC appliances in a High Availability configuration arises, a graceful reboot is mandatory. Improperly rebooting an appliance may cause the system to go into a fail-over state.
This solution describes the proper way to reboot NAC appliances that are set up in a High-Availability or Hot Standby configuration. Different procedures are followed based on which appliance needs to be rebooted.
Important: Do not power off your NAC appliance by pulling the plug or pressing the Power Off switch. This action could jeopardize the database on the NAC appliance. Performing a graceful reboot provides the safest way to reset the appliance and avoid corrupting the database.
In general, you will be rebooting the primary server(s) first, then wait for them to become fully functional before rebooting the secondary server(s).
Requirements
 - PuTTY or other ssh software
 - Admin or greater access privileges
Procedure #1 (Rebooting either of the primary NAC appliances)
1) Connect to the primary NAC Control Server or NAC Server appliance CLI using ssh.
2) Log in as admin.
3) Run the following command to shut down the NAC product and database:
shutdownCampusMgr
4) Wait 15-20 seconds.
5) Connect to each (secondary) NAC Appliance's CLI using ssh and view the current 'processManager' log file (example: 'ssh <hostname secondary>').
6) If you have a 1U appliance:
a. Type:
cd /bsc/logs/processManager
b. Type:
tail –f output.processManager.<most current file date>
If you have a 2U/4U appliance:
a. Type:
 cd /bsc/campusMgr
b. Type:
 tail –f output.masterProcess.<most current file date>
7) Verify that the secondary appliance is in Idle(true) mode. Look for the line of text that looks like this:
(Slave) Master In Control Idle(true)
If you find that the secondary NAC appliance is not in Idle mode, go back to the primary NAC Control Server and reissue the command:
shutdownCampusMgr
8) Once Idle mode has been verified, continue.
Do the following step if you have a NAC Application Server; otherwise, skip the next step.
9) In a console window, connected to the primary NAC application server and run one of the following commands to reboot:
sudo reboot
or
sudo init 6
10) In a console window, connect to the primary NAC Control Server of the NAC Server and run one of the following commands to reboot:
sudo reboot
or
sudo init 6
11) Verify proper operation of the primary servers before moving on to reboot the secondary servers.
Procedure #2 (Rebooting Either of the Secondary NAC Appliances)
1) Verify proper operation of the primary servers before moving on to reboot the secondary servers.
2) Connect to the secondary NAC Control Server or NAC Server appliance that is to be rebooted using ssh.
3) Run one of the following commands to reboot:
sudo reboot
or
sudo init 6
4) Repeat the process for each secondary NAC appliance that needs rebooting.
Validation
1) Access the NAC GUI and log in.
2) Access different functions to verify that the device is working correctly.
3) Visit the Events page to review if any errors have been encountered upon reboot.

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NEAUA Main Site | NEAUA Virtual | Past & Future Meetings
New England Section of the American Urological Association
Back to 2021 Abstracts
Multidisciplinary Stone Clinic May be Associated with Equalizing Urine Volume Irrespective of Socioeconomic Status
Ji Whae Choi, BA1, Timothy K. O'Rourke, Jr., MD1, Frances Kazal, BA1, Kathleen Wu, BA1, Rebecca Ortiz, BA2, Philip Caffery, PhD2, Christopher T. Tucci, MS1, Jie Tang, MD1, Mary Lynch-Delaney, RD, LDN2, Gyan Pareek, MD, FACS1, David W. Sobel, MD1.
1Minimally Invasive Urology Institute, The Miriam Hospital; The Warren Alpert Medical School of Brown University, Providence, RI, USA, 2Minimally Invasive Urology Institute, The Miriam Hospital, Providence, RI, USA.
Background: Poor fluid intake and associated low urine volume (<2 L) on 24-hour urine collection are known risk factors for nephrolithiasis. Kidney stone risk is higher in certain demographics, and low 24-hour urine volumes have been associated with certain socioeconomic status such as low-income. We aimed to compare 24-hour urine volumes amongst high-risk stone formers followed in a multidisciplinary stone clinic (MSC) where patients are seen by urologists, nephrologists, and dietitians in one patient encounter.
Methods: A retrospective review of patient records at a single academic medical center MSC was conducted. Patient demographics (race/ethnicity, gender assigned at birth, insurance status, and religious status) and 24-hour urinary volume were collected. Urine volumes of patients who completed multiple 24-hour urine collections were averaged to produce one mean urine volume per patient. T-tests and ANOVA were used for statistical analysis to assess for differences between groups.
Results: A total of 117 patients were included in the analysis with an overall mean 24-hour urine volume of 1,980+-684 mL. No significant difference was detected between white and non-white patients (1,893+-754 mL versus 1,977+-671 mL respectively, p=0.645) and between female and male patients (1,917+-757 mL vs 2,019+-577 mL respectively, p=0.409). Patients with Medicare, Medicaid, and private insurance had similar urine volumes (1,851+-562 mL vs 1,882+-673 mL vs 2,018+-713 mL respectively, F(2,114)=0.641, p=0.529). Christian, Jewish, and non-religious groups had similar urine volumes (1,974+-667 mL vs 2,082+-675 mL vs 1,811+-873 mL respectively, F(2,114)=0.327, p=0.722).
Conclusions: There were no significant differences in 24-hour urine volume among patients from different socioeconomic status related to race/ethnicity, gender assigned at birth, insurance, and religion. Although previous studies suggest an increased risk for kidney stones in certain demographics, this study demonstrates that an MSC model may optimize the patients' risk factors for stone formation irrespective of their socioeconomic status. Thus, clinicians should consider the potential benefit of a multidisciplinary approach in stone formers across all social determinants of health. Further investigations are necessary to characterize the impact of MSC in different populations.
Back to 2021 Abstracts


A subcontract is a legal agreement to do part of a larger job. A worker or small company usually signs a subcontract with a larger company.
As a verb, subcontract means to hire a person or company to complete part of a job. An example might be a construction company that's been employed to build a house deciding to subcontract all the plumbing and electrical work out. In other words, they are paid for the entire job, and then they pay a plumber and an electrician to do specific parts of the job.
Definitions of subcontract
 1. noun
 a contract assigning to another party some obligations of a prior contract
 see moresee less
 type of:
 2. verb
 arrange for work to be done by others
 synonyms: farm out, job
 see moresee less
 type of:
 employ, engage, hire
 engage or hire for work
 3. verb
 work under a subcontract; engage in a subcontract
 see moresee less
 type of:
 do work, work
 be employed
Word Family


Date of Award
Degree Name
Master of Arts
First Advisor
Dr. Paul Friday
Second Advisor
Dr. Lewis Walker
Third Advisor
Dr. Ronald Kramer
Access Setting
Masters Thesis-Open Access
The purpose of this study is to explore the relationship between the type and severity of a crime and the offender's known history (past or present) of controlled substance abuse.
A random sample of federal cases between the years _PHONE_ was used to see if the offender's known problem with substance abuse had any impact on the severity of the recommended and actual sentence imposed on the offender.
Specific control variables such as race, age, educational level, and marital status of the offenders were also incorporated.
Included in
Criminology Commons


text:
Hawai'i P-20 Partnerships for Education
Hawaiʻi P-20 is a statewide partnership led by the Executive Office on Early Learning, the Hawai'i State Department of Education and the University of Hawai'i System works to strengthen the education pipeline from early childhood through postsecondary education and training with data-informed decision making, advocacy, policy coordination and shared action. Our work is focused on high expectations and equitable access, so all students can thrive in school, career and life.
- Increase 3rd Grade English Language Arts and Math Proficiency
- Increase Number of 9th Grade Students on Track to Graduate
- Increase High School Graduates Enrolling Directly into Postsecondary
- Align, Integrate and Sustain College and Career Pathways for All Students
Who We Are
Hawaiʻi P-20 Leadership & Partners
Hawaiʻi P-20 Council Members
Hawai'i P-20 convenes a Hawai'i Hawai'i P-20 Advisory Council which is a group of leaders from education, business, labor, government and community who share a common vision and mission of improving educational outcomes for the state. Through the unique knowledge and perspective of its members, the council provides support, information and guidance to the Hawai'i P-20 leadership and staff, and advocates for statewide educational planning and policy.
Hawaiʻi P-20 is thankful to our many supporters who help us advance our work in strengthening the educational pipeline.