How to Use a Laptop Dell ePSA Error Code to Solve the Problem?
Understanding ePSA Codes
The ePSA codes are a set of information that tell the user about errors in the computer system. The ePSA error code is basically a number that contains the error information.
Various error codes are different explanations and solutions. If you have no idea about the ePSA error codes, or if not a will is found, it is advisable to consult the technical support phone number from Dell.
You can also talk to computer professionals by 4210 _PHONE_ choose.
CPU error
The error code for this problem is ePSA 2000-0111. This is a problem that appears on the computer's motherboard. Moreover, it causes the processing unit to malfunction.
Update your system BIOS
If the update does not help, replace the motherboard or processor.
Computer battery error
Here, the error code is ePSA is 2000-0131; This involves the malfunction of the system battery. To resolve this issue, you must turn off the computer. Make sure the system power source is turned off.
Open the box of your computer and throw the battery
Replace the battery in place. Even if the error still exists, then replace the battery and pull your service account number.
The failure of the hard disk (HDD)
The error code is now ePSA 2000-0141, it is certainly a hard drive failure. Even if the hard disk is inserted correctly, yet can not be read by the system. This error occurs if no hard disk is installed.
If you have a laptop, then put only the hard disk. If you have a desktop computer, connect the data cable and power cable to the hard disk.
If the above solution does not work, replace the hard drive. If you still have the problem, do not hesitate to call the toll free number.
The error of the optical drive
Another common problem is the optical drive, the error code for this problem is ePSA In this scenario, insert you the 2000 to 0147th whenever a CD in the optical drive, the drive fails to read the disc. Turn off the computer to avoid any electrical connection
Identify faulty optical drive and unplug the device and the connections and wires. If the optical drive still shows an error, then call the customer support number for further assistance.
Understanding patterns beep AMI
If the code AMI beep is short, then this can lead to DRAM failure. During the three short beeps occur if a RAM error. Moreover, the failure timer system is connected with four short beeps. Examine the technical support number for assistance.
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Related: Wikipedia article on the Vix Grave. Covered elsewhere: Greeks uncorked French passion for wine.
Ancient Greeks introduced wine to France, Cambridge study reveals
The original makers of Côtes-du-Rhône are said to have descended from Greek explorers who settled in southern France about 2500 years ago, it claimed.
The study, by Prof Paul Cartledge, suggested the world's biggest wine industry might never have developed had it not been for a "band of pioneering Greek explorers" who settled in southern France around 600 BC.
His study appears to dispel the theory that it was the Romans who were responsible for bringing viticulture to France.
The study found that the Greeks founded Massalia, now known as Marseilles, which they then turned into a bustling trading site, where local tribes of Ligurian Celts undertook friendly bartering.
Prof Cartledge said within a matter of generations the nearby Rhône became a major thoroughfare for vessels carrying terracotta amphorae that contained what was seen as a new, exotic Greek drink made from fermented grape juice.
He argued the new drink rapidly became a hit among the tribes of Western Europe, which then contributed to the French's modern love of wine.
"I hope this will lay to rest an enduring debate about the historic origins of supermarket plonk," he said.
"Although some academics agree the Greeks were central to founding Europe's wine trade, others argue the Etruscans or even the later Romans were the ones responsible for bringing viticulture to France."Archaeologists have discovered a five-foot high, 31.5 stone bronze vessel, the Vix Krater, which was found in the grave of a Celtic princess in northern Burgundy, France.Prof Cartledge said there were two main points that proved it was the Greeks who introduced wine to the region."First, the Greeks had to marry and mix with the local Ligurians to ensure that Massalia survived, suggesting that they also swapped goods and ideas."Second, they left behind copious amounts of archaeological evidence of their wine trade (unlike the Etruscans and long before the Romans), much of which has been found on Celtic sites."The research forms part of Professor Cartledge's study into where the boundaries of Ancient Greece began and ended.Rather than covering the geographical area occupied by the modern Greek state, he argued Ancient Greece stretched from Georgia in the east to Spain in the west.

source: HuggingFaceFW/fineweb-edu


Browse Dictionary by Letter
Dictionary Suite
third degree intensive, often painful questioning, as of a police prisoner (usu. prec. by the.) [2 definitions]
third dimension the dimension of depth or volume, as distinguished from the two dimensions provided on a plane surface. [2 definitions]
Third International an international Communist organization founded in Moscow in 1919 to unite all national Communist groups and advocate the spread of Communism.
third party a political party formed in dissension from or opposition to the major parties in a two-party system. [2 definitions]
third person in grammar, the category of pronouns, inflections, and the like that indicates one that is neither the speaker of a sentence nor one to whom the speaker is speaking, but rather, a person or thing that the speaker is speaking about. [3 definitions]
third rail an added rail that carries the electric current in an electric railway or subway.
Third Reich Germany under Nazi rule, from 1933 to 1945; Nazi Germany.
Third Republic the republic of France from 1870 to 1940.
third stream a kind of music that combines jazz improvisation with classical forms.
Third World (often l.c.) the developing nations, as of Asia and Africa, esp. those not aligned with either of the two dominant political blocs.
thirst a feeling of dryness in the mouth or throat, associated with the need or desire to drink. [5 definitions]
thirsty experiencing thirst; needing to drink. [4 definitions]
thirteen the number represented by the Arabic numeral 13 and by the Roman numeral XIII. [3 definitions]
thirteenth indicating rank or position between twelfth and fourteenth. [3 definitions]
thirtieth indicating rank or position between twenty-ninth and thirty-first. [3 definitions]
thirty the number represented by the Arabic numeral 30 and by the Roman numeral XXX. [5 definitions]
thirty-second note a musical note with one thirty-second the time value of a whole note; demisemiquaver.
Thirty Years' War a series of European wars occurring from 1618 to 1648, originally between German Catholics and German Protestants but later involving Sweden, France, and Spain, from which France emerged as the most powerful nation in Europe.
this the person, thing, or matter mentioned, understood, or at hand. [7 definitions]
thistle any of various plants with prickly leaves and showy heads of usu. purplish flowers.


text:
South Dakota Celebrates Native American Day
It's Columbus Day in the United States, but it's Native American Day in South Dakota.
The state Legislature in 1989 approved the change proposed by then-Gov. George Mickelson. South Dakota is the only state that celebrates Native American Day on Columbus Day.
Dani Daugherty grew up on the Pine Ridge Indian Reservation. She tells the American News that Native American Day is a time to recognize the resiliency and the contributions of native peoples.
But others have mixed feelings. Standing Rock Sioux member Gordon Tree Trop says he remembers being teased by classmates when he was growing up because he had his "own day."
Meanwhile, the Crazy Horse Memorial plans to celebrate Native American Day on Monday with a weather permitting mountain blast and a free buffalo stew luncheon.
Other activities and programs include Native American singers, dancers, artists and storytellers, the South Dakota Symphony's Lakota Music Project and an educational program.
The memorial is a mountain carving in progress that will honor Oglala Lakota warrior Crazy Horse. Work on the sculpture began in 1948.
South Dakota is the only U.S. state that celebrates Native American Day. Others observe the day as Columbus Day.
Copyright 2012 by The Associated Press. All rights reserved. Material may not be redistributed.


Limb swinging in elephants and giraffes and implications for the reconstruction of limb movements and speed estimates in large dinosaurs
Article, Other literature type English OPEN
A. Christian ; R. H. G. Müller ; G. Christian ; H. Preuschoft (1999)
Speeds of walking dinosaurs that left fossil trackways have been estimated using the stride length times natural pendulum frequency of the limbs. In a detailed analysis of limb movements in walking Asian elephants and giraffes, however, distinct differences between actual limb movements and the predicted limb movements using only gravity as driving force were observed. Additionally, stride frequency was highly variable. Swing time was fairly constant, but especially at high walking speeds, much shorter than half the natural pendulum period. An analysis of hip and shoulder movements during walking showed that limb swinging was influenced by accelerations of hip and shoulder joints especially at high walking speeds. These results suggest an economical fast walking mechanism that could have been utilised by large dinosaurs to increase maximum speeds of locomotion. These findings throw new light on the dynamics of large vertebrates and can be used to improve speed estimates in large dinosaurs.

 Geschwindigkeiten gehender Dinosaurier, die fossile Fährten hinterlassen haben, wurden als Produkt aus Schrittlänge und natürlicher Pendelfrequenz der Beine abgeschätzt. Eine detaillierte Analyse der Beinbewegungen von gehenden Asiatischen Elefanten und Giraffen offenbarte allerdings klare Unterschiede zwischen den tatsächlichen Extremitätenbewegungen und den Bewegungen, die zu erwarten wären, wenn die Gravitation die einzige treibende Kraft darstellte. Zudem erwies sich die Schrittfrequenz als hochgradig variabel. Die Schwingzeit der Gliedmaßen war recht konstant, aber besonders bei hohen Gehgeschwindigkeiten viel kürzer als die halbe natürliche Pendelperiode der Extremitäten. Eine Analyse der Bewegungen der Hüft- und Schultergelenke während des Gehens zeigte, daß das Schwingen der Gliedmaßen durch Beschleunigungen dieser Gelenke beeinflußt wurde, insbesondere bei hohen Gehgeschwindigkeiten. Die Resultate legen einen ökonomischen Mechanismus für schnelles Gehen nahe, der von großen Dinosauriern zur Erhöhung der Höchstgeschwindigkeiten eingesetzt worden sein könnte. Die Ergebnisse werfen neues Licht auf die Dynamik großer Wirbeltiere. Sie können zu Verbesserungen in den Schätzungen der Fortbewegungsgeschwindigkeiten großer Dinosaurier eingesetzt werden.

 doi:10.1002/mmng.1999._PHONE_
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Fur - Fur skin
From _URL_ - The Leather Dictionary
Revision as of 12:27, 4 November 2018 by Admin (Talk | contribs)
Jump to: navigation, search
Dachs-01.jpg Bisam-01.jpg Murmeltier-01.jpg Fuchs-01.jpg
Mounted animals: Badger - Bisam - Marmot - Fox
Fur - Leather with hair
Leather can be produced both with and without hair depending on customers' wishes. A hide can have hair or not, whereas a fur always has hair. A fur is leather with very fine hair.
Fur - Fur skin
Fur is the skin of an animal which has a particularly dense and fine hair (more than 400 hairs per square centimetre). For example, mink fur, beaver fur, fox fur, sable fur and chinchilla fur etc. Other leather with hair on top is called "skin".
In 2009 85% of all furs came from breeding animals, most commonly foxes, minks, marten dogs, nutrias and chinchillas.
In 2013 the turnover in the global fur trade was approx. 15 billion US $. Around one million people are employed in this sector worldwide. The main production countries are Greece, Russia, China and Denmark. In Germany, the turnover of the fur industry in 2012 was around 1.28 billion euros and there were 23 mink farms. There are about 7,200 fur farms in the EU, mainly in Denmark, the Netherlands, Poland and Finland. About 35 million mink furs and two million fox furs are produced annually in European farms.
Animal species for fur and skins with hair
There are many animal species and their subspecies, from which furs or skins are made. There are unprotected animals and protected animals. The following list contains a lot of animals used to produce fur and skins with hair, but it's not complete.
Kaninchen-01.jpg Kaenguru-03.jpg Marderhund-Fell-01.jpg
Rabbit - Kangaroo - Marten dog
The different animal species for fur and skin production
Animal groups Animal species
Poultry animals Opossum, Wallaby, Kangaroo
Hare species Snow rabbit, wild rabbit, domestic rabbit (Chinchilla and many more breeding varieties)
Primates She-monkey
Cloven hoofed animals Guanako (young animal), vicuna, goats (young animal), domestic goat, domestic sheep (Persian, Merinos and many other species, often lambs), springbok, calves (from cattle), reindeer
Unpaired hoofed animals Foal (horse), zebra
Insectivorous Mole, silver bisam
Rodents Ground squirrel, bamboo rat, marmot, squirrel, beaver, hamster, bisam, nutria, chinchilla, viscacha
Marten Ermine, weasel, mink, polecat, marten, sable, badger, skunk, otter, wolverine
Bears Black bear, polar bear, brown bear
Small bears Catfry, raccoon
Dogs Wolf, coyote, jackal, fox (red fox, silver fox, pole fox and many more), marten dog
Cats Cats (domestic cats, wild cats and other species), lion, cougar, lynx, serval, cheetah, ocelot, jaguar, leopard, tiger
Water animals Seal
Wildkatze-Fell-01.jpg Fischotter-Fell-01.jpg Waschbaer-Fell-01.jpg
Wild cat - Fish Otter - Raccoon
Hermelin-Fell-Sommerkleid-01.jpg Hermelin-Fell-Winterkleid-01.jpg
Ermine with summer and winter fur.
Leather is mostly produced from animals that are kept for meat production. This is not the case with fur animals. The meat of goats and rabbits is mostly used for human consumption, but the meat of most of the fur animals is not eaten. In some countries, it is even forbidden to eat some of these animals.
A furrier is a craftsman who processes fur into clothing. This includes repairs and cleaning and care of furs.
Fur coat 01.jpg Fur clothing 02.jpg
For the older generation, furs were a sign of prosperity and provided warmth in the winter.
The cleaning of furs
In case of soiling, skins or furs can be carefully brushed. Always ask advice from a furrier who is experienced in the cleaning of skins and furs. Specialists use moistened wood chips in a special cleaning process for furs and sensitive skins. Insensitive furs and skins can also be washed with special leather detergents. In particular, old skins and furs can be extremely sensitive to wet cleaning and can irreversibly harden and shrink.
Animal protection and labelling
The trade of skins and furs of certain species of animals, particularly those threatened with extinction, has been restricted or prohibited on the basis of species protection worldwide. Many animal protectionists reject any trade in fur.
There is no uniform regulation on the labelling of furs. Single EU countries have stricter rules. Since 2008, the Origin Assured (TM) label indicates that fur products come from a country where approved regulations and standards apply to fur production.
From 01.01.2019 the city of San Francisco in the USA prohibits the sale of furs. The ban applies to clothing including gloves and accessories. This ban affects about 50 stores and approximately $ 40 million in sales.
The opponents of furs often drastically draw attention to their concerns.
Video about furs
Fur production.
Cleaning a fur coat.
How to make fur blankets.
Hides with hair on top
Skin on which the hair is still present, is referred to as fur or skin. Typical terms for skins are lion's skin, sheepskin, cowhide, bearskin etc.
According to a study from 2014, children who have slept on animal fur or hides during the first three months of life have a 79% reduced risk of developing asthma later.
Leopard-01.jpg Bärenfell-02.jpg
Head of leopard fur. - Bear skin.
Zebra-Fell-01.jpg Bisonfell-01.jpg
Zebra hide and bison hide.
Alpakafell-01.jpg Alpakafell-02.jpg
Wonderful warm Alpaca slippers from Lima in Peru. - Alpaca fur-accessories of the market in Aguas Calientes, Peru, below Machu Picchu.
Ziegenfell-01.JPG Fell-Wildschwein-01.jpg
Goatand wild boar skin.
Kuhfell-gefaerbt-001.jpg Kuhfell-Zebra-Tiger-Muster.jpg
Exotic dyed cow and calf skins.
Skins as covers on car seats.
Fellmütze-04.jpg Fellmütze-03.jpg
Fur hats in Moscow.
Additional information


text:
The Bachelor of Dental Surgery (BDS) degree program was established in 1975 as a Department with the aim of producing highly skilled Dental Surgeons comparable to those trained in the developed countries. The first set of Dental students started their clinical training in 1977 and the program attained full accreditation by the Nigerian Medical and Dental Council in 1978.The single Dentistry Department was split into four autonomous departments in August 1981.
The Development Committee of the Senate of the University of Ibadan approved the creation of these departments in 1985 and four departments in Dentistry were accorded full Faculty status in April 2002. The Department would have been split into two at the creation of the four departments but for the low staff strength. Department of Preventive Dentistry in 1981 was one of the four departments at that time consisting of four different discipline/units namely: Periodontology, Dental Public Health, Paedodontics and Orthodontics.
The first Acting Head of Department was Dr. M.O. Noah and the current is Dr. Modupe O. Arowojolu.The staff strength in the department then increased to eight (8) and this has also brought up the€€ need for a split of the department to ensure compliance with the normal academic structure, the world over and as recommended by National University Commission (NUC) minimum standards. The department was then officially split into two departments (Preventive Dentistry and Child Oral Health) in the year 2004.
- Didactic and clinical teachings to Dental students.
- Laboratory instructions to Dental students.
- Community Health Program.
- Primary Health Program was established in Idikan area of Ibadan and Igboora for the purpose of teaching dental students in community.
- Dentistry, for carrying out research and for rendering services to patients in a Primary Health Care Setting.
- The Department also conducts planned visits to Schools and Community.
- Research projects are assigned to students in their final year.

source: openbmb/Ultra-FineWeb


Making a Weaver II Child Theme
Often we are asked how to do this or that with the Weaver II theme, and often the correct answer is: "Make a Weaver II Child Theme". Weaver II has been designed to make it as easy as possible to create a child theme. This FAQ is a basic HOW TO for making a Weaver II child theme. Note: this is a pretty advanced topic, and really applies only to people who understand the WordPress file structure, as well as at least a little about PHP. (It is possible to copy PHP files to the right place, and make fairly simple changes to wording in them with no real programming experience – but a bit of programming knowledge is very helpful.)
What is a Child Theme?
A child theme is a mechanism provided by WordPress that allows you to selectively override or replace many of the files and specific functions found in what is known as a parent theme. This process involves creating a new directory in the /wp-content/themes directory, and following specific naming guidelines, and other conventions. This is explained in some detail here in the WordPress.org codex.
Why Would You Need a Child Theme?
If you need to change the behavior of Weaver II in a way that requires changing one of the theme's PHP files (e.g., you can't do it using an existing option or via custom CSS), then the only correct way to do that is a via a child theme. You should NEVER edit any of the files in the standard Weaver II theme directory (or any other theme, for that matter). The main reason for this is the fact that if you directly edit any theme files, then the next time the theme is updated, your changes will disappear. Using a child theme prevents this loss.
Basic Example included with Weaver II
To help make this process easier, Weaver II already includes a very simple example child theme in the /wp-content/themes/weaver-ii/weaver-ii-child-demo directory, included with the Weaver II theme distribution.
To use this child theme demo, copy the entire directory /weaver-ii-child-demo to the /wp-content/themes directory. You should now have a new theme available under the Appearance:Themes panel. (Hint: if you're lost now, or don't really know how to copy this directory to the noted location, you may need to acquire a bit more understanding of how WordPress works and uses your host file system before tackling a child theme.)
This demo version does two simple things. First, it demonstrates how to override a specific "standard" Weaver II function to override the "Continue Reading…" link used on excerpts. That is found in the functions.php file, and provides a function called weaverii_continue_reading_link. Because the standard Weaver II functions.php file wraps that function in an
if (!function_exists('weaverii_continue_reading_link'))
statement, the definition in the child's functions.php will override the original. Weaver II wraps many functions like that to make it easy to override specific functions. However, it will be up to you to find which functions you might want to override in your child.
The other thing included in the demo is an alternate 404.php file, which demonstrates how you can create a custom 404 page for your site. Weaver II uses a somewhat complex file organization, but all conform to WordPress naming standards, and can be replaced by equivalent child theme files, just as the 404.php file can.
Weaver II Pro vs. Weaver II basic
WordPress child themes are based on a specific parent theme located in a specific directory. Because Weaver II basic and Weaver II Pro are really two different themes in two different directories, you will need to take this into account. The example child style.css file is set up for Weaver II basic, but includes the appropriate alternative path for Weaver II Pro.
Weaver II Settings
Weaver II saves all its options in the standard WordPress database. All versions of Weaver II – the free version, Weaver II Pro, and any child theme will all use the same database entry. However, because of the way WordPress treats separate themes, you might find that some settings such as the header image, custom menus, and widget areas may need to be reactivated or redefined for different versions of Weaver II.
Child Theme Summary
 1. Read the Child Theme article at WordPress.org.
 2. Copy the /weaver-ii-child-demo directory to the /wp-content/themes directory. You may want to rename that directory to something you like: /weaver-ii-my-child, for example.
 3. Edit the child style.css file to give your child theme whatever name you want. Change the @import statement as appropriate for Weaver II basic or Weaver II Pro. Having a properly defined style.css file is required for all child themes.
 4. Add your own custom CSS at the end of the child style.css file if appropriate. Delete the demo CSS rules already there.
 5. Edit the child functions.php file to delete the example function, and add any other override functions you need for your child theme. Providing a child functions.php file is not required for a child theme.
 6. Create an appropriate set of override files, similar to the example 404.php. You may want to delete the example 404.php file. Providing override files is not required for a child theme.
 7. If desired, you might want to create an alternate screenshot.png file for your child.
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Many commutative algebra textbooks establish that every ideal of a ring is contained in a maximal ideal by appealing to Zorn's lemma, which I dislike on grounds of non-constructivity. For Noetherian rings I'm told one can replace Zorn's lemma with countable choice, which is nice, but still not nice enough - I'd like to do without choice entirely.
So under what additional hypotheses on a ring $R$ can we exhibit one of its maximal ideals while staying in ZF? (I'd appreciate both hypotheses on the structure of $R$ and hypotheses on what we're given in addition to $R$ itself, e.g. if $R$ is a finitely generated algebra over a field, an explicit choice of generators.)
Edit: I guess it's also relevant to ask whether there are decidability issues here.
share|improve this question
My memory is that "every ring has a maximal ideal" is equivalent to AC so there are hence decidability issues. – Kevin Buzzard Nov 28 '09 at 8:00
6 Answers 6
up vote 6 down vote accepted
I suspect that the most general reasonable answer is a ring endowed with a constructive replacement for what the axiom of choice would have given you.
How do you show in practice that a ring is Noetherian? Either explicitly or implicitly, you find an ordinal height for its ideals. Once you do that, an ideal of least height is a maximal ideal. This suffices to show fairly directly that any number field ring has a maximal ideal: The norms of elements serve as a Noetherian height.
The Nullstellensatz implies that any finitely generated ring over a field is constructively Noetherian in this sense.
Any Euclidean domain is also constructively Noetherian, I think. A Euclidean norm is an ordinal height, but not at first glance one with the property that $a|b$ implies that $h(a) \le h(b)$ (with equality only when $a$ and $b$ are associates). However, you can make a new Euclidean height $h'(a)$ of $a$, defined as the minimum of $h(b)$ for all non-zero multiples $b$ of $a$. I think that this gives you a Noetherian height.
I'm not sure that a principal ideal domain is by itself a constructive structure, but again, usually there is an argument based on ordinals that it is a PID.
share|improve this answer
I'm not sure I understand what "constructively Noetherian" means. It seems like it should mean: given a recursive set S of elements of R, give an algorithm to find a finite subset T of R such that = . But I worry that even Z is not constructively Noetherian in this sense. Take for instance the ideal generated by the set x_n = 2^n + e_n, where e_n = 0 if the nth Fourier coefficient of \Delta is nonzero and e_n = 1 otherwise. Then finding a finite generating set for <{x_n}> is equivalent to resolving Lehmer's Conjecture. – Pete L. Clark Nov 29 '09 at 7:45
Of course it can mean more than one thing. What I mean by it is an order-preserving map from ideals (under reverse inclusion) to ordinals. So that the inductive structure of set of the ideals is constructive. As you argue, it does not really mean that their entire structure is constructive. – Greg Kuperberg Nov 29 '09 at 16:09
OK, let's look at the condition on a commutative ring R that there exist an ordinal number (or equivalently, a well-ordered set) O and a map f from the set of nonzero ideals R to O with the property that I strictly contains J implies f(I) < f(J). Such rings are definitely Noetherian. Examples include Euclidean domains and also Samuel's generalization to "ordinally-normed" Euclidean domains. Does the coordinate ring of an affine variety over a field necessarily satisfy this property? – Pete L. Clark Nov 29 '09 at 22:45
I'm a fake expert at best with the algebraic geometry and even worse with the logic. But my impression is that you can make an ordinal height from the Hilbert series of a graded algebra over a field. I referred to the Nullstellensatz above, but the Hilbert series is more directly to the point. – Greg Kuperberg Nov 29 '09 at 22:57
Unlike full choice, you probably use countable choice all over the place without even recognizing it. Every time you do something iteratively and then take some sort of limit to your construction, you're using countable choice. In many cases, if you do very careful bookkeeping, you can eliminate it on a case by case basis. But you have to be very careful. Without countable choice, the countable union of countable sets isn't necessarily countable.
share|improve this answer
It seems to me like there are two points here.
(1) A ring is called noetherian if any ascending chain of ideals terminates. I think all the standard facts about noetherian rings can be proved without choice: $\mathbb{Z}$ is noetherian; fields are noetherian; $A$ noetherian implies $A[x]$ noetherian; that quotients of noetherian rings are noetherian; localizations of noetherian rings are noetherian; completions of noetherian rings are noetherian.
That should take care of most the rings we need in algebraic geometry.
However, I am worried about another issue:
(2) The usual proof that noetherian rings have maximal ideal goes as follows. Let $A$ be a ring without maximal ideals. Take the ideal $I_0 = \{ 0 \}$. Since it is not maximal, choose an ideal $I_1$ which contains it. Choose an ideal $I_2$ which contains $I_1$. Continue in this manner to produce a chain $I_0 \subsetneq I_1 \subsetneq I_2 \subsetneq \cdots$. This doesn't terminate, so $A$ is not noetherian.
This proof, of course, uses countable choice. My gut feeling is that this can be eliminated for the same sort of rings I address in (1). But does anyone know a reference for this?
share|improve this answer
This argument uses the principal of Dependent Choice, rather than merely countable choice, since the choices are made in succession. DC is known to be strictly stronger than countable choice, but strictly weaker than AC. – Joel David Hamkins Jan 27 '11 at 20:58
There are certain kinds of rings that came to my mind when I saw this question. $K[v]:=$ Coordinate ring of an affine variety $V$ over a field $K$, and $C(X, F)$:= the ring of continuous $F$-valued ($F$ a topological field) functions on a compact space $X$. In both examples one can construct maximal ideals as zero sets of minimal closed subsets of certain topological space (In one case $V$ and in other case $X$). So for $C(X, F)$ some max ideals correspond to points of $X$, and for $K[V]$ some max ideals correspond to points in $V$.
Another way to think about the question is the following analogy to it. Under what hypothesis can we exhibit a basis of a vector space without using any form of choice? here the clear answer should be finite dimensional spaces! This gives a clear picture about what rings $R$ we should consider, they are $R$'s that are Artinian rings.
About decidability I'd say think about boolean rings. The category of Boolean rings is equivalent to the category of Boolean algebras. Under that equivalence one have a correspondence between ideals and filters that takes maximal ideals to ultrafilters. If I'm not mistaken the existence of ultrafilters is equivalent to some form of choice (see _URL_ ) so the same form of choice should be equivalent to the existence of maximal ideals.
share|improve this answer
The existence of ultrafilters is easy: take a principal one. It's the non-principal ones that need AC. So one can find maximal ideals of Boolean algebras constructively, just not interesting ones ;-) – Kevin Buzzard Nov 28 '09 at 14:30
Of these Boolean algebras. Consider instead the quotient of $\Omega(\mathbb{N})$ by the ideal of finitely supported Boolean functions. Any maximal ideal of that is a non-principal ultrafilter. – Greg Kuperberg Nov 28 '09 at 17:11
Yes good point Greg. So there's a very natural candidate for a ring that might well have no maximal ideals if AC fails sufficiently badly. My memory is that it's standard that there are models of ZF where the only ultrafilters on Z are the principal ones. – Kevin Buzzard Nov 28 '09 at 17:26
According to this authority, that's correct. _URL_ The existence of ultrafilters is also supposedly weaker than the axiom of choice. – Greg Kuperberg Nov 28 '09 at


text:
Ohio House Bill 200, introduced by Rep. Ron Hood of Ashville with support of 35 House Republicans, imposes up to a $1 million fine and 10 years imprisonment if physicians fail to counsel women seeking abortion on a number of points, including that abortion increases the risk of breast cancer ("GOP proposal adds hurdles to abortion," Dispatch article, Friday). The results of many studies from the 1950s until the present time are mixed: Older studies show an increased risk, while more-recent studies show no increase or decreased risk of breast cancer related to abortion. These older studies were flawed, with the increased risk possibly due to factors other than abortion.
The strongest studies scientifically were ones in which a large group of women who didn't have breast cancer were followed with annual questionnaires asking them about their health habits and medical procedures, including abortion. Over time some of these women developed breast cancer while others didn't, and the results showed that there was no increase or possibly a decreased risk of breast cancer related to abortion.
Policymaking organizations such the American College of Obstetrics and Gynecology and the American Cancer Society have concluded that abortion does not increase breast-cancer risk.
Irrespective of how one feels about the right to life versus a woman's right to choose, the facts need to presented as accurately as possible based on thorough and thoughtful review of the medical literature.
- DR. CHARLES L. SHAPIRO
Director of Breast Medical Oncology and the Breast CancerResearch Program
Ohio State University'sWexner Medical Center


2012-08-06
Merge Right
The so-called master-transaction update is one of the, if not the defining algorithms of the discipline formerly known as "data processing". Given two sorted files of records with increasing keys, the process applies each record in the transaction file to each record of the the master file and outputs the result, if any, to the updated master file in one pass over each input. The same algorithm can compute the union, intersection or difference of sorted sequences. For instance, the union of two sets represented as sorted lists of unique elements is:
let union =
 let rec go l r = match l, r with
 | [], xs | xs, [] -> xs
 | x :: xs, y :: ys ->
 match compare x y with
 | -1 -> x :: go xs (y :: ys)
 | 0 -> x :: go xs ys
 | 1 -> y :: go (x :: xs) ys
 | _ -> assert false
 in go
Intersection is:
let inter =
 let rec go l r = match l, r with
 | [], _ | _, [] -> []
 | x :: xs, y :: ys ->
 match compare x y with
 | -1 -> go xs (y :: ys)
 | 0 -> x :: go xs ys
 | 1 -> go (x :: xs) ys
 | _ -> assert false
 in go
while difference is:
let diff =
 let rec go l r = match l, r with
 | [], _ | _, [] -> l
 | x :: xs, y :: ys ->
 match compare x y with
 | -1 -> x :: go xs (y :: ys)
 | 0 -> go xs ys
 | 1 -> go (x :: xs) ys
 | _ -> assert false
 in go
And so on. The three functions use the same underlying merge schemata; what varies is the operation to perform in each of the five possible cases:
 1. The left sequence is nil
 2. The right sequence is nil
 3. The next element in the left sequence is less than the next element in the right sequence
 4. The next element in the left sequence is equal to the next element in the right sequence
 5. The next element in the left sequence is greater than the next element in the right sequence
The question is, then, how many set operations can the merge algorithm implement? These five cases partition both input sequences in disjoint sets such that the output sequence is the natural merge of zero or more of them. For example, processing the sets { 1, 3, 4, 6, 7, 8 } ⋈ { 2, 3, 5, 6, 8, 9 } results in the following steps:
LNRNLTEQGTArguments
1 { 1, 3, 4, 6, 7, 8 } ⋈ { 2, 3, 5, 6, 8, 9, 10 }
2{ 3, 4, 6, 7, 8 } ⋈ { 2, 3, 5, 6, 8, 9, 10 }
3 { 3, 4, 6, 7, 8 } ⋈ { 3, 5, 6, 8, 9, 10 }
4 { 4, 6, 7, 8 } ⋈ { 5, 6, 8, 9, 10 }
5{ 6, 7, 8 } ⋈ { 5, 6, 8, 9, 10 }
6 { 6, 7, 8 } ⋈ { 6, 8, 9, 10 }
7 { 7, 8 } ⋈ { 8, 9, 10 }
8 { 8 } ⋈ { 9, 10 }
9,10∅ ⋈ { 9, 10 }
Abstracting away the operations to perform in each of these five cases we have the following schema:
let merge ln rn lt eq gt : 'a list -> 'a list -> 'a list =
 let rec go l r = match l, r with
 | [], ys -> ln ys
 | xs, [] -> rn xs
 | x :: xs, y :: ys ->
 match compare x y with
 | -1 -> lt x (go xs (y :: ys))
 | 0 -> eq x (go xs ys )
 | 1 -> gt y (go (x :: xs) ys )
 | _ -> assert false
 in go
Both ln and rn must decide what to do with the remaining list and so have type α list → α list, while lt, eq and gt must decide what to do with the element in consideration and so have type αα list → α list; thus the type of merge is (α list → α list) → (α list → α list) → (αα list → α list) → (αα list → α list) → (αα list → α list) → α list → α list → α list. The operations on the remainder either pass it unchanged or return nil, while the operations on the next element either add it to the output sequence or not:
let self xs = xs
and null _ = []
and cons x xs = x :: xs
and tail _ xs = xs
(some of these have well-known names in functional programming, but here I choose to use these neat, four-letter ones.) With the proviso that the output sequence must be increasing these four functions exhaust the possibilities by parametricity; otherwise, duplications and rearrangements would satisfy the parametric signature. Now union, intersection and difference are simply:
let union l r = merge self self cons cons cons l r
and inter l r = merge null null tail cons tail l r
and diff l r = merge null self cons tail tail l r
It is obvious that the question I posed above is answered as 25 = 32 possible set operations obtainable by varying each of the five operations. The next question is, then, what are these 32 operations? Let me characterize each of the five sets ln, rn, lt, eq and gt. The easiest one is eq, as it obviously is the intersection of both sets:
eq(A, B) = A ∩ B
By substitution in merge it is possible to show that ln(A, B) = rn(B, A) and vice versa; hence just one set expression suffices. The merge ends with rn for every element in A that is greater than every element in B, as the latter were included in the comparison sets; and conversely for ln. Hence:
ln(A, B) = B / A ≡ ⟨S y : B : ⟨∀ x : A : y > x⟩⟩
rn(A, B) = A / B ≡ ⟨S x : A : ⟨∀ y : B : x > y⟩⟩
(read A / B as "A over B"). All three sets are pairwise disjoint, since A / B ⊆ A and A / B ∩ B = ∅, and conversely, by construction.
The two remaining sets are also symmetric in the sense that lt(A, B) = gt(B, A) but are more difficult to characterize. My first attempt was to think of each element in A as being processed in turn and put into lt(A, B) just when strictly less than all the elements in B against which it could be matched, namely lt(A, B) = ⟨S x : A : x < ⟨min y : B : x ≤ y⟩⟩. The condition can be simplified with a bit of equational reasoning:
 x∈A ∧ x < ⟨min y : B : x ≤ y⟩
≡ { GLB }
 x∈A ∧ ⟨∀ y : y∈B ∧ x ≤ y : x < y⟩⟩
≡ { Trading }
 x∈A ∧ ⟨∀ y : y∈B : x > y ∨ x < y⟩⟩
≡ { Trichotomy }
 x∈A ∧ ⟨∀ y : y∈B : x ≠ y⟩⟩
≡
 x∈A ∧ x∉B
In other words, A − B. The problem is that, since the quantification over an empty set is trivially true, this set is too big as it includes the respective remainder; that is to say A / B ⊆ A − B as I showed above. To preserve disjointness I define:
lt(A, B) = A − B − A / B
gt(A, B) = B − A − B / A
In a Venn diagram, these five sets are:
Venn diagram of the five component sets
So by including or excluding one of the five components depending on the function passed to each of the five operations, the 32 set operations achievable by merge are:
Venn diagrams for all 32 set operations
Or in tabular form:
NlnrnlteqgtFunction
0selfselfconsconsconsA∪B
1selfselfconsconstailA B/A
2selfselfconstailconsA∆B
3selfselfconstailtailA−BB/A
4selfselftailconsconsB A/B
5selfselftailconstailA∩BB/AA/B
6selfselftailtailconsB−AA/B
7selfselftailtailtail B/AA/B
8selfnull


SAFES integrates agriculturally and environmentally related disciplines to develop holistic approaches for tackling "wicked" challenges.
Credit: Adobe Stock
Credit: Adobe Stock
Programmatic Domains
Achieving agricultural, food, economic, and ecosystem sustainability amid changing political, economic, and environmental climates is inherently a multi-system problem that can be a moving target. The science of agricultural sustainability for landscape-level challenges will require a multi-disciplinary and multi-scale approach involving innovations in integrated modeling, data science, and visualization.
SAFES establishes an infrastructure of four programmatic domains to address key challenges that impact society within the interconnected contexts of agriculture, food, watersheds, natural resources, the economy, and urban/rural interfaces. These domains of expertise are the scaffold that support the establishment and endurance of areas of expertise, fortifying the University's capacity to effectively respond and provide solutions to emergent issues such as disruption, resilience, regeneration, biodiversity, optimizing ecosystems services, and innovative stakeholder engagement, among others.
The data domain will create a capacity of expertise in the theory and methods of data acquisition and analysis. This domain will identify data sources that should be available to researchers at Penn State and work to make these resources easily accessible to the Penn State research community. The data domain will also identify and develop state of the art techniques to collect original data (sensor technology) and mine data (machine learning or artificial intelligence) for important new insights relevant to multisystem dynamics and landscape scale interactions.
The models domain will create a capacity of expertise in coupling and translating information across biophysical and socioeconomic models. This framework builds on strengths at Penn State in the development and use of computational models and tools for research and expands this expertise to integrate across models and collaborate across modeling teams and platforms. The model domain will focus on building data and computational tools to help facilitate coupling and translation across individual models.
The discovery domain will create a capacity of expertise in making acquired data and interoperable models accessible to academic and non-academic audiences within and beyond the university. This domain builds strength in specialized translations (visual, technical, verbal, etc.) that can effectively communicate the knowledge and thus extend the societal benefits of the research, evaluation of new technologies, and design of communications around policy options and business management solutions. The discovery domain builds on a strong and unique tradition in the college for "useand need-inspired" research. The discovery domain will be a "switchboard" for connecting researchers to resources and building synergies across the University to leverage talent and skill within and especially beyond the college.
Landscape-Level Interactions
The landscape-scale interactions domain will build a capacity of expertise in understanding how interactions occur across scales, which is critical to improving our predictability of how a system at one spatial scale will be influenced by an impact occurring at a different spatial scale. This framework may be understood as a cross-cutting research domain that will address fundamental challenges most modelers and data scientists face when attempting to understand multisystem dynamics; namely, how are the different components in the system integrated, and importantly how do these dynamics interact across different landscape scales.
Affiliated Centers
Affiliated Initiatives and Projects


text:
Ladda ner som PDF
In the Oracle Database 12c: Performance Management and Tuning course, learn about the performance analysis and tuning tasks expected of a DBA: proactive management through built-in performance analysis features and tools, diagnosis and tuning of the Oracle Database instance components, and diagnosis and tuning of SQL-related performance issues.
- Use the Oracle tuning methodology.
- Use Oracle-supplied tools for monitoring and diagnosing SQL and instance performance issues.
- Use database advisors to proactively correct performance problems.
- Identify and tune problem SQL statements.
- Monitor instance performance by using Enterprise Manager.
- Tune instance components.
Benefits To You:
The DBA will analyze the SQL performance with available tools. The DBA will be introduced to various methods of identifying the SQL statements that require tuning and the diagnostic tools used to find ways to improve performance. This will include the use of statistics, profiles to influence the optimizer, and using the SQL Advisors.
Maintain SQL Performance:
A major task of DBAs is to maintain SQL performance across changes. This course introduces Database Replay and SQL Performance Analyzer which help the DBA test and minimize the impact of change.
Influence Instance Behavior:
Instance tuning uses the same general method of observing a problem, diagnosing the problem, and implementing a solution. The instance tuning lessons cover the details of major tunable components and describe how you can influence the instance behavior. For each lesson, we will examine the relevant components of the architecture. The course only discusses the architecture to the level required to understand the symptoms and solutions. More detailed explanations are left to other courses, reference material, and the Oracle documentation.
At the end of this course you will be able to:
- Diagnose and tune common Instance related performance problems
- Use Enterprise Manager performance-related pages to monitor an Oracle database
- Use the Oracle Database tuning methodology
- Utilize database advisors to proactively tune an Oracle Database Instance
- Use the tools based on the Automatic Workload Repository to tune the database
- Diagnose and tune common SQL related performance problems
- Course Objectives
- Course Organization
- Course Agenda
- Topics Not Included in the Course
- Who Tunes?
- What Does the DBA Tune?
- How to Tune
- Tuning Methodology
Basic Tuning Diagnostics
- Performance Tuning Diagnostics, Features, and Tools
- DB Time
- CPU and Wait Time Tuning Dimensions
- Time Model
- Dynamic Performance Views
- Wait Events
- Log Files and Trace Files
Using Automatic Workload Repository
- Automatic Workload Repository Overview
- Automatic Workload Repository Data
- Enterprise Manager Cloud Control and AWR
- Compare Periods
Defining the Scope of Performance Issues
- Defining the Problem and Limiting the Scope
- Setting the Priority
- Top SQL Reports
- Common Tuning Problems
- Tuning During the Life Cycle
- ADDM Tuning Session
- Performance Tuning Resource
- Monitoring and Tuning Tools Overview
Using Metrics and Alerts
- Metrics and Alerts Overview... Läs mer
Utbildningen levereras i samarbete med


Buddhist Compassion Relief Tzu Chi Foundation
Jan 18th
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A Generous Poor Old Lady
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After the 76-year old grandma inserted the only 100 Kyat she had into the bamboo bank for good deeds, she danced with joy. This shows that even the very poor can give generously.
During Buddha's time, there was a story about a poor old lady who made an offering to Buddha.
Maha Kasyapa (also known as Kasyapa) always begged for alms from the poor so that the poor could have a chance to receive merit. One day, he met a poor old lady who was very sincere in offering alms but did not have anything to offer. Kasyapa told her, "It is alright to offer a small piece of cloth from the clothing you are wearing. It is still considered as a Dana." The poor old lady immediately tore a small piece of cloth from her old clothing and offered it respectfully to Kasyapa.
When Lord Buddha heard about it, he told his disciples to be appreciative of the thoughtfulness of the poor old lady. Since then, the monk's robe always has a 'patch of cloth' which serves as a reminder of the generous poor old lady.
In Myanmar, there was an identical story.
After Cyclone Nargis hit Myanmar in May 2008, Tzu Chi volunteers went to more than 30 villages in Kyautan and Kunyangon Districts to hand over paddy seeds and fertilizers to the farmers. They told the victims about the story of the bamboo bank and encouraged the villagers to cultivate merits.
By watching the movie, the villagers began to understand how Master Cheng Yen and the 30 housewives had used the bamboo bank to collect money for charity. They knew they could do the same, so they started to make their own bamboo banks.
One day, when Tzu Chi volunteers were distributing relief goods at Ma Yann Bay Village, they also told the story of bamboo bank. Seventy-six year old Daw Duo Chi quickly took out money to donate, as did many other villagers. She said, "My house was destroyed by the cyclone, and I will now be staying with either my children or relatives. I have only 100 Kyat (approximately USD0.30)." She donated what little money she had as she wanted to help others in need. She was indeed very happy after donating; and she sang and danced on the spot, influencing all present to do the same.
In June 2008, Typhoon Fengshen hit the Philippines, affecting 410,000 people and had a death toll of more than 1,000. Tzu Chi provided them with rice and daily necessities and also shared the story of bamboo bank.
When Tzu Chi volunteers conducted the relief distribution at a Catholic College in Aklan, they noticed that the school was damaged by the Typhoon. The priest was very sad and worried. He was very pale and was unshaven. When Tzu Chi volunteers met the priest again after the relief, he was clean-shaven. He said he was encouraged by the story of the bamboo bank, and knew that if everybody worked together, there would be no insurmountable difficulties. He encouraged his followers to emulate the Tzu Chi Way.
By Tan Kim Hion
Jing-Si Aphorism
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text: _URL_ Today's iPhones can record up to 4K video resolution and the new Apple TV can play back 4K movies. What is the difference between 4K and 1080 HD? How about older standards like 720 HD and SD video? Learn the difference and how it can affect video quality. Learn how to set your video recording resolution on your iPhone.


Create a Hub
A Model Object of type Hub can be created in the Silver Layer.
What is a Hub
In Data Vault modeling, a Hub represents a structural object. A Hub should have a set of business keys to identify a unique data entry.
Creation steps
There are two possibilities to create a Hub Model Object:
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 A Hub Model Object can be configured through the following Properties
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 A Hub Model Object will include the following Default Terms:


_USER_{Dreher2005globalisation, abstract = {For a number of OECD countries, the deterioration of labour market outcomes for less-skilled workers since the early 1980's has coincided with a steady decline in union membership. Globalisation is commonly believed to have contributed to both developments. However, recent studies fail to find support for the presumption that globalisation adversely affects unions. Revisiting this issue by using a novel globalisation index we find that globalisation has indeed contributed to deunionisation. In delving further into the issue, we find that it is social integration, rather than economic or political integration, that has been the main contributor to the decline in union membership.}, address = {Z\"{u}rich}, author = {Axel Dreher and Noel Gaston}, copyright = {_URL_ doi = {10.3929/ethz-a-005104861}, keywords = {F02; J50; O57; C82; 330; Deunionisation; globalisation; integration; panel regressions; Globalisierung; Gewerkschaftsbewegung; Gewerkschaftsmitgliedschaft; Panel}, language = {eng}, number = {110}, publisher = {KOF}, title = {Has globalisation really had no effect on unions?}, type = {Arbeitspapiere // Konjunkturforschungsstelle, Eidgen\"{o}ssische Technische Hochschule Z\"{u}rich}, url = {_URL_ year = {2005} }


Tagged: goto c
The goto Keyword in C Language 15
goto statement in C Language
goto statement in C programming language is used for unconditional jump from one part of the program to another part of the program. It is always suggested not to use goto statement as this reduces the readability of the program. Using goto statement in C programming language is considered as poor programming approach. The goto statement consists of two parts: label and goto keyword. Example: /*use of goto statement*/ _TAG_ _TAG_ void main(){ int a; goto label; a = 10; printf("%d", a); label: a = 20; printf("%d", a); } Output: 20 When goto label is encountered, control goes to the...
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text:
The aim of the study was to determine the influence of microirrigation (microjet sprinkling and drip irrigation) and organic fertilization (compost prepared on the base of sewage sludge) on a seedling vigour of one-year and two-year old Scot pine seedlings (Pinus sylvestris L.), cultivated on a post-agricultural ground with the use of zoo-melioration in two different regions. Field experiments were carried out on an experimental field in Kruszyn Krajeński (loose sandy soil of quality class VI) near Bydgoszcz and in Lipnik near Stargard Szczeciński (sandy soil of quality class IVb). The first row factor was irrigation used in three treatments: without irrigation (control), drip irrigation, microjet sprinkling. The second row factor was fertilization, used in two variants: mineral fertilization (standard applied in forest nurseries), organic fertilization (compost). The irrigation significantly increased the height and the diameter of the Scot pine seedlings. There were no significant differences in the characters of the growth between the two irrigation systems. Fertilization of Scot pine seedlings with the compost increased significantly the height of seedlings. Interaction of irrigation with organic fertilization of Scot pine seedling height and diameter was noted. Pine seedlings grown on the plots fertilized with compost under irrigation conditions were characterized by increased height and diameter. Better effects were obtained in Lipnik than in Kruszyn Krajeński. Joint effect of organic fertilization and microjet sprinkling positively influenced the density and the species number of Oribatida in Kruszyn Krajeński. The obtained results indicated that the amelioration measures used can positively influence the growth of Scot pine seedlings on a post-agricultural ground.
ul. Papieża Pawła VI 1, 71-459 Szczecin _URL_


text:
The Basin Management Plan (BMP) identifies a suite of water supply projects that are complemented by a valley-wide water conservation program designed to stop groundwater overdraft and halt seawater intrusion. PV Water has constructed and currently operates several water supply facilities, and is working to develop additional projects described in the BMP.
Operational Water Supply Facilities include:
Proposed Projects in the Planning Stage include:
The College Lake Integrated Resources Management Project
The Watsonville Slough Diversion with Recharge Basins Project
The Harkins Facilities Improvements Project

source: m-a-p/FineFineWeb


text: Have some fun making some puppets out of paper bags! Just print these out, color them if you wish, then cut them out and glue them to a paper bag. Kids will have hours of fun talking and playing with their new animal friends. Here you can print out a color version or a black and white version so you can color them yourself. Use some thick paper or card stock for a sturdier puppet.


text:
As the coronavirus pandemic paralyzed most nonemergency medical practices this spring, the dialysis business, vital to the survival of patients with kidney disease, rolled ahead and in some cases grew.
Yet when the Trump administration sent billions in federal relief funds to medical organizations, at least $259 million went to dialysis providers, a KHN analysis of federal records found. Of that, kidney care behemoth Fresenius Medical Care accepted more than half, at least $137 million, despite acknowledging it had ample financial resources, the analysis showed.
The full amount going to Fresenius and many other dialysis providers is far higher than what KHN could confirm. The analysis was limited to the portion of grants disclosed by the federal government. And the analysis counted only grants going to organizations whose primary purpose was providing dialysis. In a securities filing last month, Fresenius disclosed it received a total of $277 million in relief funds under the Coronavirus Aid, Relief and Economic Security (CARES) Act.
Funding to giant dialysis providers would have been greater if DaVita, the other multinational corporation that dominates dialysis care in the U.S., had not turned down $240 million in aid, saying other medical providers needed it more. Fresenius and DaVita each own more than 2,600 dialysis centers nationwide.
Headquartered in Germany, Fresenius Medical Care is focused on patients with kidney failure who need blood-purifying dialysis treatment three times a week to stay alive, billing itself as the world's largest provider of dialysis and related services, equipment and drugs. Fresenius treated about 350,000 people worldwide and earned last year about $1.4 billion. The company announced second-quarter profits exceeding $400 million, up more than a third over last year, due to a 14% operating margin.
"From what we know today, the net impact of COVID-19 on our earnings is not so significant," Helen Giza, Fresenius' chief financial officer, told analysts.
With scores of COVID-19 patients developing major kidney damage, the pandemic caused unexpected demand for dialysis treatment. Chronic kidney disease and kidney failure were common among people hospitalized with COVID-19, accounting for 13% of all such patients nationally from January to March, when the extent of the virus's spread in the U.S. was just coming to light, according to FAIR Health, a health data nonprofit that analyzes insurance bills.


the details.
=============================================================
08: Is it possible to "TrunkTrack" without a TrunkTracker?
 It didn't used to be, but times do change and YES! It is
 now possible to track the trunks without a 'real'
 TrunkTracker Scanner, and better, for that matter!!!
 Like the other subjects in this FAQ, it all begins with
 a Data Decoder Interface. See Q&A #4 and Note 10 in that
 answer for the tiny extra addition you need to make to
 the Decoder Interface.
 Next, you need a PRO-2004, PRO-2005, or PRO-2006
 scanner, although we hope to add other scanners to the
 list in due time. For now, it's one of those three.
 NOTE: It is possible to track the trunks with a
 AR-8000 and perhaps with one of the Opto
 Interfaces, but these are specialized situations
 where detailed info must be found elsewhere.
 Then you need a CE-232 Scanner/Computer Interface (or
 its predecessor, the HB-232). You will also need the
 hot, new Windows program for the CE/HB-232 called
 Pro-Turbo.
 Lastly, you need one fairly modern computer, Pentium 133
 or better, for the easiest way to track the trunks, but
 there is another way almost as easy, if you have two
 computers, one a 486DX2/66 or better and the other, a
 PC-386 or better.
 There are other requirements, too, but the above are the
 main ones. It is beyond the scope of this FAQ to spell
 out all the details, but the V8N9 issue of the monthly
 World Scanner Report tells it all. You can order this
 or any other back issue of the World Scanner Report
 since Jan-91, including 6-mo and 1-yr subscriptions.
 You can also download a more detailed text file on
 TrunkFollowing with the PRO-2004/5/6 from my FTP site at:
 _URL_
 For more information on the Pro-Turbo software for the
 HB/CE-232, contact:
 Paul E. Turton
 RR # 3; Wainfleet, Ontario Canada L0S 1V0
 E-mail: _EMAIL_ or _EMAIL_
 Web: _URL_
 For more information on the CE-232 Interface, you can
 download a file called PRODINFO.ZIP from:
 _URL_
 or you can view and download all the individual files
 from the \CE-232 directory. Or, you can ask for it as
 an e-mail file attachment from: _EMAIL_
 or see the information in my signature box below.
 But yes, it is now possible to track the trunks without
 a TrunkTracker scanner, and do it better than any of the
 "real" TrunkTracker scanners! The cost can be a lot
 less than the cost of a real TrunkTracker, too. The cost
 largely depends on what you already have, or can
 scrounge up, but at worst, it's well within the budget
 of many scannists.
================================================================
09: What if I don't want to build my own Data Decoder Interface?
 See further below if you are intested in a 4-Level Data
 Decoder Interface. First is info on the 2LFSKDDI:
 2LFSKDDI
 ========
 There isn't much of a technical obstacle to "rolling your
 own 2-Level Data Decoder Interface, but if lack of time,
 tools, or access to the parts is an obstacle, then you can
 acquire one in either of two ways:
 NOTE: We can supply the 2LFSKDDI detailed Instruction Set
 alone for $5, ppd, USA and $7, ppd, foreign.
 1. Kit of essential parts (you build it): $15 + $8 S&H
 Includes:
 3 ea Capacitor; tantalum; 10-uF/16v:
 1 ea D-sub Plastic Hood/shell; DB25
 1 ea DB25 connector; female; solder pin
 2 ea Resistor; 100-k; 1/4-watt
 1 ea Resistor; 3.3-k; 1/4-watt
 4 ea Diode; silicon; 1N4148
 1 ea Op-amp; LM741CN; 8-pin DIP
 1 ea Perfboard; pre-cut, notched, trimmed to size
 1 ea Shielded cable; 3-ft; w/RCA plug
 1 ea Detailed printed instruction set, complete with
 graphics, photos, tables, and "what if's"...
 1 ea 3.5" floppy disk w/shareware & freeware decoder
 programs and utilities.
 Optional upgrade or add-on items:
 * A. Shielded cable; 6-ft; w/RCA plug + $2.00
 * B. Shielded cable; 12-ft; w/RCA plug + $4.00
 C. Port Adapter; DB25 male-to-DB9 female + $7.50
 (adapts 25-pin Interface to 9-pin comport)
 * Instead of the standard 3-ft cable w/RCA plug
-=OR=-
 2. Assembled/tested 2-L Decoder Interface $40 + $8 S&H
 Includes:
 1 ea Data Decoder Interface built into a DB25 shell
 with standard 3-ft shielded cable w/RCA plug.
 1 ea Detailed printed instruction set, complete with
 graphics, photos, tables, and "what if's"...
 1 ea 3.5" floppy disk w/shareware & freeware decoder
 programs and utilities.
 Optional upgrade or add-on items:
 A. Built with 6-ft shielded cable and RCA plug + $2.00
 B. Built with 12-ft shielded cable and RCA plug + $4.00
 C. Port Adapter; DB25 male-to-DB9 female + $7.50
 (adapts 25-pin Interface to 9-pin comport)
 D. Custom enhancements/designs per your specs +$10/up
 4LFSKDDI
 ========
 CAVEAT: It may be illegal to decode certain 4LFSK signals.
 You must determine that for your self and cease
 interest in the subject if not legal in your area.
 If you are intested in a 4-Level FSK Data Decoder Interface
 we have a detailed Instruction Set ready to go, as well as a
 Kit of Essential parts, less enclosure and power supply.
 Assembled and Tested units are not ready yet, but.....I may
 have available some built/tested prototype units that have
 been proved fit for consumption.
 One or more of the following may be available:
 1. Instruction Set Only - you build from it.
 8-pages of hi-res laser printed text, charts,
 photos, drawings, and detailed, hand-holding
 guidance: Price: $5, ppd, USA; $7, ppd, foreign
 2. Kit of Essential Parts, plus detailed Instruction Set
 from (1) above, less enclosure and power supply. See my
 4LFSK.FAQ file for details, or the following web site:
ourworld.compuserve.com/homepages/bcheek/4lfsk.txt
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 You must determine suitability and fitness of
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 products, nor for damage or loss that results from
 connecting these devices to a scanner and/or a
 computer.
 You must determine all risks and accept all
 consequences of any damage to hardware and/or data
 stored in the computer.
==


text: The main scientific goal of this work is the presentation of the role of selected geophysical methods (Ground-Penetrating Radar GPR and Electrical Resistivity Tomography ERT) to identify water escape zones from retention reservoirs. The paper proposes a methodology of geophysical investigations for the identification of water escape zones from a retention fresh water lake (low mineralised water). The study was performed in a lake reservoir in Upper Silesia. Since a number of years the administrators of the lake have observed a decreasing water level, a phenomenon that is not related to the exploitation of the object. The analysed retention lake has a maximal depth between 6 and 10 m, depending on the season. It is located on Triassic carbonate rocks of the Muschelkalk facies. Geophysical surveys included measurements on the water surface using ground penetration radar (GPR) and electrical resistivity tomography (ERT) methods. The measurements were performed from watercrafts made of non-metal materials. The prospection reached a depth of about 1 to 5 m below the reservoir bottom. Due to large difficulties of conducting investigations in the lake, a fragment with an area of about 5,300 m 2, where service activities and sealing works were already commenced, was selected for the geophysical survey. The scope of this work was: (1) field geophysical research (Ground-Penetrating Radar GPR and Electrical Resistivity Tomography ERT with geodesic service), (2) processing of the obtained geophysical research results, (3) modelling of GPR and ERT anomalies on a fractured water reservoir bottom, and (4) interpretation of the obtained results based on the modelled geophysical anomalies. The geophysical surveys allowed for distinguishing a zone with anomalous physical parameters in the area of the analysed part of the retention lake. ERT surveys have shown that the water escape zone from the reservoir was characterised by significantly decreased electrical resistivities. Diffraction hyperboles and a zone of wave attenuation were observed on the GPR images in the lake bottom within the water escape zone indicating cracks in the bottom of the water reservoir. The proposed methodology of geophysical surveys seems effective in solving untypical issues such as measurements on the water surface.


text:
Creation of mass dimension one fermionic particles in asymptotically expanding universe
MetadataShow full item record
In the present work we study the process of particle creation for mass dimension one fermionic fields (sometimes named Elko) as a consequence of expansion of the universe. We study the effect driven by an expanding background that is asymptotically Minkowski in the past and future. The differential equation that governs the time mode function is obtained for the conformal coupling case and, although its solution is nonanalytic, within an approximation that preserves the characteristics of the terms that break analyticity, analytic solutions are obtained. Thus, by means of Bogolyubov transformations technique, the number density of particles created is obtained, which can be compared to exact solutions already present in literature for scalar and Dirac particles. The spectrum of the created particles was obtained and it was found that it is a generalization of the scalar field case, which converges to the scalar field one when the specific terms concerning the Elko field are dropped out. We also found that lighter Elko particles are created in larger quantities than the Dirac fermionic particles. By considering the Elko particles as candidate to the dark matter in the universe, such result shows that there are more light dark matter (Elko) particles created by the gravitational effects in the universe than baryonic (fermionic) matter, in agreement to the standard model.


text:
Construction (NAICS 23)
Under this topic you will find the North American Industry Classification
System definition of the
Construction (NAICS 23) sector. You can use this
definition to properly identify the segment of the industry you wish to study
further in other sections of Canadian Industry Statistics.
Definition of the Sector
This sector comprises establishments primarily engaged in constructing, repairing and renovating buildings and engineering works, and in subdividing and developing land. These establishments may operate on their own account or under contract to other establishments or property owners. They may produce complete projects or just parts of projects. Establishments often subcontract some or all of the work involved in a project, or work together in joint ventures. Establishments may produce new construction, or undertake repairs and renovations to existing structures.
A construction establishment may be the only establishment of an enterprise, or one of several establishments of an integrated real estate enterprise engaged in the land assembly, development, financing, building and sale of large projects.
There are substantial differences in the types of equipment, work force skills, and other inputs required by establishments in this sector. To highlight these differences and variations in the underlying production functions, this sector is divided into three subsectors. Establishments are distinguished initially between those that undertake projects that require several different construction activities (known as trades) to be performed, and establishments that specialize in one trade.
The former are classified in Subsectors 236, Construction of Buildings and 237, Heavy and Civil Engineering Construction, depending upon whether they are primarily engaged in the construction of buildings or in heavy construction and civil engineering projects. Establishments in these subsectors complete projects using their own labour force, by subcontracting, usually to trade contractors, or a combination of own account and subcontracting activities. Establishments classified in these subsectors are known by a variety of designations, such as general contractor, design-builder, speculative builder, operative builder and construction manager. The designation depends on the scope of the projects they undertake, the degree of responsibility and risk that they assume, the type of structure that they produce, and whether they work on contract for an owner or on their own account.
General contractors typically work under contract to a client (the owner of the land and the building or structure to be constructed), and undertake projects that require several specialized construction activities to be performed. Often the general contractor will subcontract some of the specialized tasks to other establishments.
Design-builders are similar to general contractors. However, in a design-build project a single contract is signed with the owner that makes the contractor responsible for providing the architectural and engineering designs. The design-builder therefore is responsible for the design of the project as well as its construction.
Construction establishments that build on their own account, for sale to others, are known as speculative builders, operative builders or merchant builders. They are most often engaged in the construction of residential buildings.
Construction managers provide oversight and scheduling services to the owner, for the most part during the actual construction process. This type of service is sometimes referred to as agency construction management, to distinguish it from a type of general contracting known as at-risk construction management. On the other hand, project management, which is a turnkey-type service involving the entire project, including feasibility studies, the arranging of financing, and the management of the contract bidding and selection process, is classified in 54133, Engineering Services when it is the primary activity of an establishment.
Establishments that specialize in one particular construction activity, or trade, are generally classified in Subsector 238, Specialty Trade Contractors. However, in order to conform to the generally accepted distinctions made by construction businesses themselves, some types of specialized establishments involved in road building and civil engineering are classified in Subsector 237, Heavy and Civil Engineering Construction.
Subsector 238, Specialty Trade Contractors, comprises establishments engaged in trade activities generally needed in the construction of buildings and structures, such as masonry, painting, or electrical work. Specialty trade contractors usually work under contract to another construction establishment but, especially in renovation and repair construction, they may contract directly with the owner of the property.
A significant amount of construction work is performed by enterprises that are primarily engaged in some business other than construction, for these enterprises' own use, using employees and equipment of the enterprise. This activity is not included in the construction sector unless the construction work performed is the primary activity of a separate establishment of the enterprise. However, if separate establishments do exist, they are classified in the construction sector.
Establishments primarily engaged in:
- manufacturing and installing building equipment, such as power boilers; manufacturing pre-fabricated buildings (31-33, Manufacturing)
- operating highways, streets and bridges (48-49, Transportation and Warehousing)
- project management services, when it is a primary activity (54133, Engineering Services)
- maintenance of rights of way for power, communication and pipe lines; and cleaning building exteriors, after construction (56, Administrative and Support, Waste Management and Remediation Services)


bgbg bgbg - 4 months ago 36
Python Question
Search inside ipython history
ipython's
%his
command outputs recent commands entered by the user. Is it possible to search within these commands? Something like this:
[c for c in %history if c.startswith('plot')]
EDIT I am not looking for a way to rerun a command, but to locate it in the history list. Of course, sometimes I will want to rerun a command after locating it, either verbatim or with modifications.
EDIT searching with
ctr-r
and then typing
plot
gives the most recent command that starts with "plot". It won't list all the commands that start with it. Neither can you search within the middle or the end of the commands
Solution
Expanding PreludeAndFugue's solution here what I was looking for:
[l for l in _ih if l.startswith('plot')]
here, the
if
condition can be substituted by a regex
Answer
Similar to the first answer you can do the following:
''.join(_ih).split('\n')
However, when iterating through the command history items you can do the following. Thus you can create your list comprehension from this.
for item in _ih:
 print item
This is documented in the following section of the documentation: _URL_


Schaub, C & Smith, R 2014, 'Determining the feasibility of a real time geophysical magnetic and electric measurement system for monitoring strain underground – laboratory magnetic test', in M Hudyma & Y Potvin (eds), Proceedings of the Seventh International Conference on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 443-456. (_URL_ Abstract: High stress areas, which can lead to rockbursts, are a reality in deep mining environments around the world. The unpredictable nature, and sometimes fatal consequences of rockbursts, makes working towards identifying increases in strain that occur prior to failure events, of principal importance for mine safety. The piezoelectric, electrokinetic, and seismoelectric effects result in electric and magnetic fields that can potentially be measured in rock mass under stress. The implementation of real time monitoring of these signals has the potential to significantly improve deep mine safety by mapping the evolution of strain underground and indicating potential areas susceptible to failure. Previous laboratory stress tests on core show measurable currents of nano-Ampere magnitude. These currents have associated magnetic responses which can be very small; however, with proper filtering and noise removal algorithms, magnetic signal identification from rock under stain may be just as feasible as measuring electric signals. A multi-part experiment aimed at identifying strain related signals in a mine environment has been proposed. The first part of the experiment was completed 26 April 2014 in a parking lot located on Laurentian University campus, Sudbury, Ontario. In the experiment a total of 32 rocks, consisting of eleven different kinds, were stressed until failure using a load frame. Magnetic coils located around the load frame were used to measure any potential magnetic fields induced when the core was stressed. The thirty-two rock samples were stressed with periodic pressure increases to failure at approximately 620 kPa/s with 10 s pauses between every 3.5 MPa increase in pressure. All the samples used for the experiment were insulated from the load frame to isolate any currents induced through strain to the sample being stressed. Base station magnetic measurements, taken 19.5 m from the load frame will be used for subtracting out slow varying ambient magnetic noise. Preliminary analysis shows measurable magnetic signals associated with audible cracking sounds for most rock samples, as well as consistent signals across all samples prior to failure. The laboratory test should be followed up with an above ground test to become familiar with, and optimise, the data acquisition equipment, in an electromagnetic-noise-reduced environment. This will also allow a brief study on the effects of seismic motion on the measurement equipment. Finally, a carefully controlled, passive acquisition, underground test should be carried out in a deep mine location. Successful identification of signals due to strain through these experiments could potentially prove the feasibility of a real-time underground geophysical monitoring system to improve safety.


<< Chapter < Page Chapter >> Page >
Neutron scattering
Suppose that a neutron beam is used in a diffraction experiment on a typical crystalline solid. Estimate the kinetic energy of a neutron (in eV) in the neutron beam and compare it with kinetic energy of an ideal gas in equilibrium at room temperature.
Strategy
We assume that a typical crystal spacing a is of the order of 1.0 Å. To observe a diffraction pattern on such a lattice, the neutron wavelength λ must be on the same order of magnitude as the lattice spacing. We use [link] to find the momentum p and kinetic energy K . To compare this energy with the energy E T of ideal gas in equilibrium at room temperature T = 300 K , we use the relation K = 3 2 k B T , where k B = 8.62 × 10 −5 eV / K is the Boltzmann constant.
Solution
We evaluate pc to compare it with the neutron's rest mass energy E 0 = 940 MeV :
p = h λ p c = h c λ = 1.241 × 10 −6 eV · m 10 −10 m = 12.41 keV .
We see that p 2 c 2 E 0 2 so K E 0 and we can use the nonrelativistic kinetic energy:
K = p 2 2 m n = h 2 2 λ 2 m n = ( 6.63 × 10 −34 J · s ) 2 ( 2 × 10 −20 m 2 ) ( 1.66 × 10 −27 kg) = 1.32 × 10 −20 J = 82.7 meV .
Kinetic energy of ideal gas in equilibrium at 300 K is:
K T = 3 2 k B T = 3 2 ( 8.62 × 10 −5 eV / K ) ( 300 K ) = 38.8 MeV .
We see that these energies are of the same order of magnitude.
Significance
Neutrons with energies in this range, which is typical for an ideal gas at room temperature, are called "thermal neutrons."
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Wavelength of a relativistic proton
In a supercollider at CERN, protons can be accelerated to velocities of 0.75 c . What are their de Broglie wavelengths at this speed? What are their kinetic energies?
Strategy
The rest mass energy of a proton is E 0 = m 0 c 2 = ( 1.672 × 10 −27 kg ) ( 2.998 × 10 8 m/s ) 2 = 938 MeV . When the proton's velocity is known, we have β = 0.75 and β γ = 0.75 / 1 0.75 2 = 1.714 . We obtain the wavelength λ and kinetic energy K from relativistic relations.
Solution
λ = h p = h c p c = h c β γ E 0 = 1.241 eV · μm 1.714 ( 938 MeV ) = 0.77 fm
K = E 0 ( γ 1 ) = 938 MeV ( 1 / 1 0.75 2 1 ) = 480.1 MeV
Significance
Notice that because a proton is 1835 times more massive than an electron, if this experiment were performed with electrons, a simple rescaling of these results would give us the electron's wavelength of ( 1835 ) 0.77 fm = 1.4 pm and its kinetic energy of 480.1 MeV / 1835 = 261.6 keV .
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Check Your Understanding Find the de Broglie wavelength and kinetic energy of a free electron that travels at a speed of 0.75 c .
λ = 1.417 pm; K = 261.56 keV
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Summary
 - De Broglie's hypothesis of matter waves postulates that any particle of matter that has linear momentum is also a wave. The wavelength of a matter wave associated with a particle is inversely proportional to the magnitude of the particle's linear momentum. The speed of the matter wave is the speed of the particle.
 - De Broglie's concept of the electron matter wave provides a rationale for the quantization of the electron's angular momentum in Bohr's model of the hydrogen atom.
 - In the Davisson–Germer experiment, electrons are scattered off a crystalline nickel surface. Diffraction patterns of electron matter waves are observed. They are the evidence for the existence of matter waves. Matter waves are observed in diffraction experiments with various particles.
Conceptual questions
Which type of radiation is most suitable for the observation of diffraction patterns on crystalline solids; radio waves, visible light, or X-rays? Explain.
X-rays, best resolving power
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Speculate as to how the diffraction patterns of a typical crystal would be affected if γ -rays were used instead of X-rays.
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If an electron and a proton are traveling at the same speed, which one has the shorter de Broglie wavelength?
proton
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If a particle is accelerating, how does this affect its de Broglie wavelength?
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Why is the wave-like nature of matter not observed every day for macroscopic objects?
negligibly small de Broglie's wavelengths
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What is the wavelength of a neutron at rest? Explain.
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Why does the setup of Davisson–Germer experiment need to be enclosed in a vacuum chamber? Discuss what result you expect when the chamber is not evacuated.
to avoid collisions with air molecules
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Problems
At what velocity will an electron have a wavelength of 1.00 m?
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What is the de Broglie wavelength of an electron travelling at a speed of 5.0 × 10 6 m/s ?
145.5 pm
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What is the de Broglie wavelength of an electron that is accelerated from rest through a potential difference of 20 keV?
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What is the de Broglie wavelength of a proton whose kinetic energy is 2.0 MeV? 10.0 MeV?
20 fm; 9 fm
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What is the de Broglie wavelength of a 10-kg football player running at a speed of 8.0 m/s?
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(a) What is the energy of an electron whose de Broglie wavelength is that of a photon of yellow light with wavelength 590 nm? (b) What is the de Broglie wavelength of an electron whose energy is that of the photon of yellow light?
a. 2.103 eV; b. 0.846 nm
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The de Broglie wavelength of a neutron is 0.01 nm. What is the speed and energy of this neutron?
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What is the wavelength of an electron that is moving at a 3% of the speed of light?
80.9 pm
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At what velocity does a proton have a 6.0-fm wavelength (about the size of a nucleus)? Give your answer in units of c .
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What is the velocity of a 0.400-kg billiard ball if its wavelength is 7.50 fm?
2.21 × 10 20 m/s
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Find the wavelength of a proton that is moving at 1.00% of the speed of light (when β = 0.01 ) .
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Questions & Answers
what is an atom
Aroyameh Reply
All matter is composed of two sets of three dimensions. The first set (1,2,3) decay with a positive charge. The second set (4,5,6) decay with a negative charge. As they decay, they create space (7 8,9) dimensions.
John
Two sets of (1,2,3,4,5,6) dimensions create a proton, a neutron, and an electron. This is the primordial atom.
John
A 10kg mass lift to a height of 24m and release. what is the total energy of the system
ADEPOJU Reply
mechanics is that branch of physical and mathatics that
ADEPOJU
E=Mgh=10*10*24=2400J
Adamu
what is the difference between a molecule and atom
Natanim Reply
Atoms are single neutral particles. Molecules are neutral particles made of two or more atoms bonded together.
Manfred
what I'd dynamic propulsion
Elias Reply
A body quadruples its momentum when its speed doubles.What was the initial speed in units of c.i.e..what was u/c ?
Lekshmi Reply
what is enthalpy?
prabir Reply
a thermodynamic quantity equivalent to the total heat content of a system
RAMLA
proparty of tharmo dainamic
bloch
What is the meaning of Nuclear Fission?
Benita Reply
what do you mean by dynamics single particles
Peacekamei Reply
عند قذف جسم إلى أعلى بسرعة إبتدائية فإنه سيصل إلى ارتفاع معين (أقصى ارتفاع) ثم يعود هابطاً نحو سطح الأرض . إذا ق


text:
Step Into Conversation - Learning Tool for Autistic Children
The Conversation Learning Tool
for ages 6 and up
More about Step into Conversation
Watch your child's interest in speaking with other people grow as your child gains conversation skill with Step Into Conversation!
Step into Conversation is a learning tool that provides autistic children with the structure and support they need to hold interactive conversations. The cards provide 21 basic, scripted conversations with areas for the child to fill in the blanks. Icons with labels run along the top of each card and remind the child to Stand, Look, Talk and Listen. They are reminded to Listen after they make each statement.
Step into Conversation comes with fun shoe prints to help anchor the child to the floor so he will remember to face the person and not turn away. Number stickers are used to indicate the number of additional questions and statements required to complete the conversation.
Step Into Conversation Materials Include:
- 21 Conversation Cards
- 2 Shoe Print Cards
- 50 Number Stickers
- Convenient Storage Bag
"My son is facing me when we talk and we just started using Step Into Conversation last week! He steps on the sneaker cards and stays there through the whole conversation. We picked out a couple of the conversation cards and he wants to practice them until he can get through a conversation without the cards. I am so proud of him. Thanks for this great product! Can I order a second set of sneaker cards? My son wants me to step on them too!"
From MaryAnne Watson, Providence RI


text:
ArcelorMittal, a global leader in the steel production and distribution sector, was looking to redesign its trade interfaces, not only to reinforce its global brand identity but also to improve its productivity. Well aware of the advantages of UX and UI design, the company called upon attoma following its successful Wonderware InTouch project with Schneider Electric.
Attoma began the project by observing the operators' production line work on site, and by conducting interviews with various trade experts in order to identify the most important supervisory and operational tasks.
Next, the agency committed to the design of the human-machine interface guidelines (HMI) by focusing on interaction design, the creation of a hierarchy of alarms, and the information design of the synoptic views. An html model was created in order to allow the ArcelorMittal team to test the implementation of the design principles.
With a complete handover goal in mind, attoma wrote design guidelines that summarizes their recommendations for the design of industrial interfaces and delivered a component library in the form of an html page to the client. ArcelorMittal will thus be able to adopt these best practices in interface design, thereby gaining independence in future endeavors.


text:
Siu Nim Tao
is the first open-hand form, or taolu
, of Wing Chun kung fu
. The form may also be called Sil Lim Tao or Sil Lum Tao.
Siu Nim Tao is a traditional form from Wing Chun Kung Fu and its history is similar to that of Wing Chun. The form originated in the Shaolin temple approximately 250 years ago. Little is known prior to this, however, many martial arts employ a neutral position when first teaching students the basic elements of a particular style.
All the basic hand movements used in Wing Chun are contained in Siu Nim Tao. There is minimal leg movement in the form; the feet only move to set up the stance in the initial movements.
Siu Nim Tao practice:
- defines the centreline and teaches students where their hands should be relative to it
- teaches students how to execute Wing Chun strikes correctly
- reinforces the correct elbow position
- instills correct breathing patterns
- facilitates force generation in short range Wing Chun strikes
Great emphasis is put on relaxation while performing Siu Nim Tao. This facilitates efficiency of movement and hand speed. Some teachers, notably Chu Shong Tin, place enormous emphasis on relaxation during Siu Nim Tao practice.
Siu Nim Tao can be used as a form of moving and breathing meditation
. In addition, it increases student concentration and focus. The form is also used extensively to develop forward energy in Wing Chun practitioners.
Demonstrations of the form
Although many of the movements are similar, Siu Nim Tao varies significantly between schools and branches
Tsui Sheung Tin
Wong Seung Long
Leung Ting (fast forward to 2:11)


text:
This article presents a detailed guide to remove unused old kernel images from the Debian system.
Remove Unused Old Kernel Images on Debian
To remove the unused old kernel images on Debian, follow the below-mentioned steps:
Step 1: Checking the Currently Used Kernel
To remove the old kernel, you must be logged into the new kernel, and to verify that, display the kernel you are using by running any the following command:
Step 2: Listing all Installed Kernels
Now to list all the installed kernels, run the below-mentioned command:
In the output, you will get the list of all the kernels, as shown in the image below:
Note: You might find some very old kernel-images in the list, as my system is updated so I only have new 5.10 version kernel images.
Step 3: Removing Unused Kernel Images
Once you have gotten the list of all installed kernel images, now you can remove all the kernel images that you think you don't need any longer, and for that use the below-written command:
Step 4: Auto Removing
In latest Linux systems, usually the unused packages are marked for un-installation, so to automatically clean the Debian system it's better to remove the unused kernel images by running the below-written command:
After following all of the above-mentioned steps, your Debian system will have more space on the disk and all the unused packages and kernel images will get removed from the system. You can reboot the system for a fresh start if you want but that is not mandatory.
To remove the old unused kernel images on Debian, firstly list all the installed kernels after which you can remove the old kernel images that are no longer required by running the "apt-get purge remove" command along with the name of the kernel image. Finally, run the auto-remove command to clean the system from unused packages and to free up the space on the system's disk.


text:
Related topics: Human
if you sneeze, air suddenly comes from your nose, making a noise, for example when you have a cold:
She started coughing and sneezing.
The dust was making him sneeze.
2 British English nothing to sneeze at American English spoken
used about an offer, especially of money, that is very good, and which you should consider carefully:
In those days £5 an hour was not to be sneezed at.