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As easy as CFD
CFD
As data centre cost-efficiency and environmental performance come under intense scrutiny, Computational Fluid Dynamics (CFD) plays a major role in ensuring facility optimisation, says Gordon Johnson, senior CFD manager at Subzero Engineering.
Since 2015, we've kept track of the various savings we have achieved for our customers through the careful, considered optimisation of their data centre environments.
The numbers are impressive: our customers have saved just under 3.5 billion kilowatt hours, reduced water consumption by one and a half billion gallons and have a total carbon reduction of over 3.2 million tonnes – the equivalent of planting 17 million trees.
Along the way, we've also been able to help customers achieve up to a 29% energy cost reduction, and been able to reduce PUE (Power Usage Effectiveness) by an average of 0.4 and WUE (Water Usage Effectiveness) by an average of 0.3.
Much of this success has been due to the strategic importance we place on carrying out an Environmental Impact Evaluation during the initial customer engagement process which consists of a complementary CFD.
This evaluation is designed to provide recommendations for improving efficiency and includes solution cost analysis (annual £ energy savings and ROI with containment).
We believe that the CFD is essentially an MRI of the data centre.
When it comes to informed decision-making, the mantra 'if you can't measure it, you can't manage it' still holds strong. However, in the case of CFD, 'if you can't measure it, you can't improve it' may be more appropriate.
Turning customer pain into gain
The current and growing industry focus on sustainability has highlighted the need to work towards energy efficient data centre designs, which, in turn, should provide the perfect combination of sustainable operating conditions. The end result being truly optimised data centre performance.
CFD plays a vital role when it comes to data centre construction, retrofit, and helping improve the efficiency and performance of legacy data centres. It allows the owner or operator to simulate endless combinations of racks, cabinets, cabling, and mechanical and engineering (M&E) equipment for greater optimisation.
The owners and operators of these facilities may not be aware that they are literally blowing a lot of (unnecessary) cold air into the aisles in order to keep the servers, switches, routers, and the storage units cool.
What they will know, however, is that this wasted air is wasted money. Worse still, emissions will be increased, hot spots will remain an issue, and they will eventually experience equipment failures.
Many data centre managers know that something has to change to overcome this unsustainable situation, but they may not have a plan or strategy. This is where CFD is critical.
What is a CFD?
CFD software creates a 3D model of the physical attributes within a data centre, as well as the location and performance characteristics of the cooling units, IT equipment, power systems, and other significant components of the data centre.
This 'data centre MRI' provides a complete, detailed thermal understanding of the data centre, providing insight relating to the physical layout of the space and equipment; the power equipment thermal dissipation and rack power density; environmental conditions; cooling capacity and air distribution effectiveness. This is the baseline model or the 'as is' snapshot of how the data centre is currently operating.
From the information obtained, additional CFD modelling will recommend how to optimise the operating environment while reducing energy and maximising efficiency.
Many key benefits of CFD analysis include assessment of the data centre layout and its performance; validation of proposed design changes, considerations for efficiency and reliability; accurate prediction/simulation of the cooling design process; the ability to assess temperature and airflow modelling; and reconditions for a cost-effective and energy efficient design.
CFD provides clarity
A data centre CFD analysis provides the visibility that is essential when it comes to understanding both your existing operating environment and any potential design changes.
CFDs can also be used to test out 'what if' scenarios when it comes to new data centre construction or modernisation projects.
In essence, a CFD provides detailed, data-driven analysis of the cold supply air and the hot exhaust air throughout the data centre, and the identifies of potential overheating of IT equipment 'hot spots.'
Such analysis highlights the way in which energy costs can be reduced by optimising and maximising data centre cooling.
CFDs are a tool to virtually test legacy (and new) data centre environments for active temperature, pressure and airflow, and to optimise the mechanical system directly to server heat loads (kW).
Armed with data from the CFD analysis, Subzero Engineering can advise customers on impactful data centre design changes, upgrades, or tweaks to improve operating improvements – all of which will help optimise and reduce energy usage.
For example, CFD modelling can demonstrate what impact a cold aisle containment (CAC) system will have versus a hot aisle containment (HAC) system. It will advise which method will save more energy, full or partial containment.
After containment is installed, it will show if computer room air conditioning (CRAC) units can be turned off and how low fan speeds can be reduced on computer room air handlers (CRAHs).
Finally, it will also inform the user on how high the operating temperature can be increased, while following the recommended thermal guidelines from AHSRAE.
The end result is that CFD based design improvements will provide customers with significant PUE, WUE, KW, kWh, carbon, and water reductions.
A logical conclusion
One of the major benefits of using CFD modelling and analysis is that it can quickly demonstrate how a containment solution will immediately reduce a data centre's energy cost and lower its environmental footprint.
Regardless of which type of containment is used, large energy savings can be achieved by optimising the airflow and raising the supply temperature, while simultaneously eliminating hotspots.
Additionally, containment improves the benefits and economic feasibility of other efficiency measures, such as digital scroll compressors, electronic commutation (EC) and variable speed drives, data centre infrastructure management (DCIM) software, and building controls.
Further, by separating the cold supply air from the hot exhaust air, containment saves energy, thus reducing operating costs.
Yes, there is the initial investment cost of installing the containment solution, but the potential return on investment (ROI) of 10-14 months means that, very quickly, end-users will achieve payback.
What's more, from that point onwards, they'll be saving energy, reducing operating expenditure (OpEX) money, and reducing carbon emissions to become more sustainable.
Subzero believes that a data-driven approach to digital infrastructure is essential and thanks to the use of CFD, we can simultaneously help our customers increase data centre density, operating efficiency, and environmental sustainability by implementing optimised containment solutions.
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:
 1. From the File menu, select New > Connections > SOA-MDS Connection.
 The Create SOA-MDS Connection dialog shown in Figure 43-23 is displayed.
 Figure 43-23 Create SOA-MDS Connection
 Description of Figure 43-23 follows
 Description of "Figure 43-23 Create SOA-MDS Connection"
 2. Provide values appropriate to your environment, as shown in Table 43-8.
 Table 43-8 Create SOA-MDS Connection Dialog
 Field Description
 Create Connection In:
 Ensure that IDE Connection is selected. This option enables the connection to display in the Resource Palette and be available to multiple applications.
 You cannot create a connection with the Application Resources option. This selection is disabled.
 Connection Name
 Enter a connection name. Upon successful completion of this connection creation, this name displays under SOA-MDS in the Resource Palette.
 Connection Type
 Select a connection type. An MDS repository can be file-based or database-based. The dialog is refreshed based on your selection.
 - DB based MDS
 For most production environments, you use a database-based repository. Most components, such as Oracle SOA Suite, require that a schema be installed in a database, necessitating the use of a database-based repository. To use a database-based repository, you must first create it with the Repository Creation Utility.
 - File Based MDS
 Choose a database connection
 Select an existing connection or create a new connection to the Oracle SOA Suite database with the MDS schema.
 Select MDS Partition
 Select the MDS partition (for example, soa-infra).
 Test Connection
 Click to test the SOA-MDS connection.
 Note: Even if the connection test fails, a connection is created.
 Status
 Displays status of the connection test.
 3. Click OK.
 You can now browse the connection in the Resource Palette and view shared artifacts under the /apps node.
43.7.3.2.2 Creating a BPEL Process
You can now browse and use the shared metadata from a different SOA composite application. For this example, you create a BPEL process service component in a different application.
To create a BPEL process:
 1. Create a new BPEL process service component in a different application.
 2. In the Create BPEL Process dialog, click the Browse icon to the right of the Input field.
 The Type Chooser dialog appears.
 3. In the upper right corner, click the Import Schema File icon.
 The Import Schema File dialog appears.
 4. To the right of the URL field, click the Browse icon.
 The SOA Resource Browser dialog appears.
 5. At the top of the dialog, select Resource Palette from the list.
 6. Select shared metadata, as shown in Figure 43-24. For this example, the Quote.xsd file that you selected to include in the archive in Step 18 of Section 43.7.3.1.1, "Create a JAR Profile and Include the Artifacts to Share" is selected.
 Figure 43-24 Shared Metadata in the SOA Resource Browser
 Description of Figure 43-24 follows
 Description of "Figure 43-24 Shared Metadata in the SOA Resource Browser"
 7. Click OK.
 8. In the Import Schema File dialog, click OK.
 9. In the Type Chooser dialog, select a node of Quote.xsd (for this example, QuoteRequest), and click OK.
 10. In the Create BPEL Process dialog, click OK to complete creation.
 11. In the Application Navigator, select the WSDL file for the BPEL process.
 12. Click Source.
 The WSDL file includes the following definition.
 <wsdl:types>
 <schema xmlns="_URL_
 <import namespace="_URL_
 schemaLocation="oramds:/apps/SOADemoComposite/xsd/Quote.xsd" />
 </schema>
 </wsdl:types>

 13. Continue modeling the BPEL process as necessary.
 14. Deploy the SOA composite application that includes the BPEL process.
43.7.4 Deploying an Existing SOA Archive in Oracle JDeveloper
You can deploy an existing SOA archive from the Application Server Navigator in Oracle JDeveloper.
Notes:
 - The archive must exist. You cannot create an archive in the Deploy SOA Archive dialog.
 - These instructions assume you have created an application server connection to an Oracle WebLogic Administration Server or another supported application server on which the SOA Infrastructure is deployed. Creating a connection to an Oracle WebLogic Administration Server enables you to browse for SOA composite applications deployed in the same domain. From the File main menu, select New > Connections > Application Server Connection to create a connection.
43.7.4.1 How to Deploy an Existing SOA Archive from Oracle JDeveloper
To deploy an existing SOA archive from Oracle JDeveloper:
 1. From the View menu, select Application Server Navigator.
 2. Expand your connection name.
 3. Right-click the SOA folder.
 4. Select Deploy SOA Archive.
 The Deploy SOA Archive dialog shown in Figure 43-25 appears.
 Figure 43-25 Deploy SOA Archive Dialog
 Description of Figure 43-25 follows
 Description of "Figure 43-25 Deploy SOA Archive Dialog"
 5. Provide responses appropriate to your environment, as described in Table 43-9.
 Table 43-9 Create Deployment Profile Dialog Fields and Values
 Field Description
 SOA Server
 Select the SOA server to which to deploy the archive.
 Partition
 Select the partition in which to deploy the archive. If the server contains no partitions, you cannot deploy this archive. By default, a partition named default is automatically included with Oracle SOA Suite.
 Status
 Displays the status of the server. If the server is not in a running state, you cannot deploy this archive.
 Server URL
 Displays the URL of the server.
 Choose target SOA server(s) to which you want to deploy this archive
 Select the Oracle WebLogic Administration Server to which to deploy the archive.
 SOA Archive
 Click Browse to select a prebuilt SOA composite application archive. The archive consists of a JAR file of a single application or a SOA bundle ZIP file containing multiple applications.
 Configuration Plan (Optional)
 Click Browse to select a configuration plan to attach to the SOA composite application archive. The configuration plan enables you to define the URL and property values to use in different environments. During process deployment, the configuration plan is used to search the SOA project for values that must be replaced to adapt the project to the next target environment.
 For information about creating configuration plans, see Section 43.6.1.4, "How to Create a Configuration Plan in Oracle JDeveloper" or Section 43.6.1.5, "How to Create a Configuration Plan with the WLST Utility."
 Mark composite revision as default
 If you do not want the new revision to be the default, you can deselect this box. By default, a newly deployed composite revision is the default. This revision is instantiated when a new request comes in.
 Overwrite any existing composites with the same revision ID
 Select to overwrite (redeploy) an existing SOA composite application with the same revision ID. The consequences of this action are as follows:
 - A new version 1.0 of the SOA composite application is redeployed, overwriting a previously deployed 1.0 version.
 - The older, currently-deployed version of this revision is removed (overwritten).
 - If the older, currently-deployed version of this revision has running instances, the state of those instances is changed to stale.
 6. Click OK.
For more information on deploying and testing SOA composite applications from the Application Server Navigator, see Section 2.8, "Managing and Testing a SOA Composite Application."
43.7.5 Managing SOA Composite Applications with Scripts
You can also manage SOA composite applications from a command line or scripting environment using the WLST scripting utility or ant. These options are well-suited for automation and can be easily integrated into existing release processes.
43.7.5.1 How to Manage SOA Composite Applications with the WLST Utility
You can manage SOA composite applications with the WLST scripting utility. For instructions, see Oracle Fusion Middleware WebLogic Scripting Tool Command Reference.
43.7.5.2 How to Manage SOA Composite Applications with ant Scripts
You can manage SOA composite applications with the ant utility. ant is a Java-based build tool used by Oracle SOA Suite for managing SOA composite applications. The configuration files are XML-based and call out a target tree where various tasks are executed.
Table 43-10 lists the ant scripts available in the Middleware_Home\SOA_Suite_Home\bin directory.
Table 43-10 ant Management Scripts
Script Description
ant-sca-test.xml
Automates the testing of SOA composite applications.
ant-sca-compile.xml
Compiles a SOA composite application.
ant-sca-package.xml
Packages a SOA composite application into a composite SAR file.
ant-sca-deploy.xml
Deploys a SOA composite application.
ant-sca-deploy.xml undeploy
Undeploys a SOA composite application.
ant-sca-deploy.xml exportComposite
Exports a composite into a SAR file.
ant-sca-deploy.xml exportUpdates
Exports postdeployment changes of a composite into a JAR file.
ant


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Take Action Against Career-threatening FDA Proposed Regulation
Posted: May 4, 2007
The Day Spa Association issued a release to its members urging them to take action against a new career-threatening regulation. The U.S. Food and Drug Administration (FDA) has recently rewritten their regulations in an attempt to outlaw and eliminate alternative health care modalities. From massage to vitamins, minerals, and herbs, all alternative and complementary modalities will be labeled as practicing medicine without a license unless prescribed by a physician.
The subtle change of vocabulary from "alternative health care" to "alternative medicine" makes all of these industries subject to control by the FDA as medicine. Only medical doctors would be allowed to provide, prescribe and supervise the delivery of these services. Anybody else who provided any of these services would be practicing medicine without a license, and subject to incarceration and fines.
Click here to read the actual draft guidance.
What this means
1. By using the term "medicine" rather than "modality," for CAM practices, the FDA sets the stage so that anyone who is not a licensed physician is breaking the law by using these modalities since they are therefore "practicing medicine without a license."
2. By using the word "treatment," rather than "therapy," the FDA limits those who can perform these practices to licensed physicians.
3. By using the terms "medicine" and "treatment," instead of "modalities" and "therapy," all substances including vitamins, mineral herbs, co-factors, etc., automatically become untested drugs since they are being used to prevent, treat, mitigate, or cure disease states. Such use can only legally take place with FDA with FDA approved drugs.
What you can do
Write to the FDA directly.
Write individual letters, call your congressman's office, or send an e-mail.
Raise awareness among your colleagues and encourage them to take action, as well.


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These compact Minichillers are an economic and environmentally friendly cooling solution for many laboratory applications.
A calculation of water and waste water costs shows a Minichiller can save up to 48,000l of water in a working week and, due to its low procurement price, return on investment is achieved within a very short time. Units have small footprints and are suitable for cooling reactor blocks, vacuum pumps, rotary evaporators, or heat exchangers.
Minichillers allow stable application conditions due to constant values for temperature, pressure, and through flow quantities. They are also perfect for continuous operation at ambient temperatures up to 40°C. Despite the economic purchase price, coolers are well equipped and have a large temperature indicator, fill level indicator, and status LEDs for the pump, cooling and heating.
A heater is also available, with the temperature range able to be extended to 100°C.
Minichillers are available as both air and water cooled models using natural refrigerants.
Minichillers attributes are:
- Environmentally-friendly, economic cooling solution
- Precise temperature control
- Powerful circulation pump
- Robust stainless construction
- Reliable continuously operation with warning functions
- Easy to fill and empty
- Illuminated filling level indicator
- LED temperature display
- Permissible temperature in return line +80°C

source: m-a-p/FineFineWeb


text:
We all have eaten sandwiches and let's admit, it's an evolutionary concept! A wholesome meal, having ingredients from all the 5 basic groups (if prepared wisely). But, the only thing we really don't find so appetizing about a loaf of bread is obviously the crust (ends of the loaf). It's chewy, hard and has no flavor of a normal bread slice. Therefore, we often leave the crust while preparing or eating a sandwich. As a result, ultimately it goes into the trash bin as it's waste for us, isn't it?
Cheers to TOAST ALE – Bread To Beer on creating a beer out of what we considered "waste"!
The Big Picture | Bread To Beer
Let us look at a bigger picture; in a country like the UK, about 9,00,000 tonnes of bread which is about 24 million slices is wasted every day. Just imagine! That's actually enough to feed about 26 million people when talking in terms of calories. Wastage occurs at various levels; at the farm (grain wastage), at the manufacturing factories, during the supply chain and ultimately in restaurants and our households. Generally, sandwich makers discard the heel end of the loaves and sometimes the first slice also, therefore leading to wastage of 17% of a loaf. That's just one loaf. All of this waste ends up in the landfills or composting pits.
According to a life cycle analysis by Tesco– the only supermarket in the UK who are transparent about their food waste statistics revealed that 34%-44% of the bread produced in the UK is wasted before it even reaches the households. Bread being just like a pixel in the global food waste picture, 1/3 of the total food produced (1.3 billion tonnes per year)– gets lost or wasted in the food production and consumption systems.
Food production has caused the biggest impact on the environment. It requires a lot of land and water resources to grow food. Calculating the land use footprint of just the food that is "never eaten" is 1.4 billion hectares, 28% of the world's agricultural land area and the water footprint is 250 cubic km.
Toast Ale to the rescue
Tristram Stuart launched Toast Ale project in the UK in 2016 and is currently selling three varieties: a lager called Much Kneaded; Bloomin' Lovely, a session IPA; and Purebread, a pale ale. They use discarded uneaten bread to produce beer and hence contribute their support in fighting against food wastage, especially bread wastage in Britain. Tristram Stuart along with his team of 8 more people have set out to tackle the global issue of food issue. And they one day hope to put themselves out of business. The day when there is no bread wastage, we won't be needing Toast Ale no more.
They are sold at price of £3
Tristram was inspired by the concept of making beer from the bread that's waste when he visited Brussels Beer Project in Belgium. There he discovered a beer called Babylone, which is based on a 7,000-year-old practice of making beer from fermented bread.
He remembers thinking: "That is a killer of an idea because I know bread was being wasted all over the world in industrial quantities while it is still absolutely fresh. I know that there is a distributed global network of craft brewers with whom there is a culture of collaboration, talent, real openness, and interest in cracking problems."
After he returned to the UK, he shared and described the idea to Rob Wilson who is currently the chief toaster. He instantly got clicked with the idea of brewing beer from unused bread. He says, "It combined everything that I am personally interested in and curious about and passionate about."
The Man behind the Beer | Bread To Beer
Tristram Stuart is an international award-winning author, campaigner, speaker, and expert on the environmental and social impact of food waste. He is also the founder of Feedback– an environmental organization that works towards ending food waste at every level of the food system.
He has authored 3 books out of which "The Bloodless Revolution: Radical Vegetarians and Discovery of India " was a great success. Also been awarded quite a few times for his contributions and has presented a TEDx talk entitled "The Global Food Waste Scandal."He is a Freegan, basically, a person who in reaction to food wastage problem procures items from trash or waste that are perfect and fit for consumption.
How it's made
Fresh, surplus or waste bread is obtained from local bakeries, sandwich shops which is no use to them. These shops find it economic to give it away for bread brewing rather than disposing it off to landfills and composting pits.
SLICE, DRY, AND CRUSH THE BREAD:
The surplus bread is sliced and dried in an oven at 90 ºC for 1 hr. Upon drying it is coarsely crushed.
Bread To Beer
The bread used substitutes a particular amount of malted barley required for making the beer. Hence, the barley grains are steeped in 15.7L of water at 67ºC, covered and left for 60 minutes. The naturally occurring enzymes in malt help in breaking down the starch into simple sugars.
SPARGE AND LAUTER
The liquid is drained from the bottom of the mash tun (steeping vessel). This process is known as lautering and simultaneously the grains are being washed with water at 78ºC to extract out additional sugars (sparging). Sparging is continued until we reach a volume of about 25L.
BOIL AND HOPS
The wort is brought to a boil. 5g of German Hallertau Tradition hops is added immediately after 90 minutes. These provide Toast its lip-smacking bitter taste. They also help balance out the caramel notes from the bread and the papaya and mango notes from the aroma hops which are added at a later stage.
A few more ingredients are added at particular time intervals to enhance the color and flavor.
COOL, FERMENT AND CONDITION
The wort is cooled to 20ºC. On cooling, yeast is added into the wort. It is then left for fermentation by maintaining the wort temperature around 18ºC for 7 days. After an interval of 5 days, hops are added to add flavors of fresh mango, passion fruit, and kiwi.
The beer is siphoned into the sterile bottles primed carbonation. The bottles are then sealed and kept in a cool, dark place (around 12ºC) for 2 weeks. This process helps in the secondary fermentation process and allows the beer to develop some fizz and condition properly.
Impact and Future | Bread To Beer
The profits earned by Toast Ale go directly to Feedback. Since its operations, it has managed to save 11 tons of bread from becoming trash. In 2017, they expanded into the USA where its director ascertains that Toast Ale will be saving 907 kgs of bread in a month from New York City alone, which makes about 12 tons a year.
We certainly need more projects, more people and more effort in order to combat the massive food waste problems which is growing at a much faster rate than ever expected. So let us come together, join our hands and contribute our shares!


This is documentation for Caché & Ensemble.
For information on converting to InterSystems IRIS, see the InterSystems IRIS Adoption Guide and the InterSystems IRIS In-Place Conversion Guide, both available on the WRC Distributions page (login required).
Home > Class Reference > %SYS namespace > %SYSTEM.MV
%SYSTEM.MV
abstract class %SYSTEM.MV extends %SYSTEM.Help
The class %SYSTEM.MV provides access to MV system level functions and elements for COS and MVBASIC programmers.
This class should always be used in preference to direct access to the internals of the MV implementation, as it is guranteed to be in sync with any underlying structural changes.
NEVER try to access MV elements at their base system level as upward compatiblity is not guranteed and this can in fact be dangerous.
COS language methods and programs should access this class using the special $System object:
 Set cosName = $System.MV.validCacheName("MVFILE.$TRANGEN4M3")

MVBASIC programmers should access this class using the "%SYSTEM.MV" method:
cosName = "%SYSTEM.MV"->validCacheName("MVFILE.$TRANGEN4M3")
Method Inventory (Including Private)
Methods (Including Private)
classmethod ConvAnalyze(code As %String) as %String
The method passes a string to the conversion code compiler, checks for errors and returns a string of information. The returned string is a series of comma separated numbers:
1. Status code:
Negative value is a negated errmsg number.
Positive value is data type of result.
0 Unknown
1 String
2 Integer
3 Numeric
4 Boolean
2. Bit values that show the types of computational codes found.
1 Contains an A correlative
2 Contains an F correlative
4 Contains a Concatenate Correlative
8 Contains a Substitute Correlative
16 Contains a Call or B; Correlative invoked for each value
32 Contains a Call or B: Correlative invoked once for an attribute
3+. If present, shows attributes referenced in the conversion code.
classmethod InputDataOnly(DataOnlyFlag As %Boolean) as %Boolean
This method sets or clears a flag that controls whether INPUT commands will read only stacked DATA or will also read from the input device. The argument is a boolean value 0 or 1. If DataOnlyFlag is 1, only stacked DATA will be available to INPUT commands. An attempt to read beyond the stacked DATA will result in an ABORT. If DataOnlyFlag is 0, the Data Only flag is cleared and INPUT commands will return to the default state of reading both stacked DATA and directly from the input device.
The return value is the previous state of the flag. If no argument is given, the current state of the flag is returned without changing it.
classmethod IteratorGet(attrNo As %Integer) as %String
The method gets contents of the specified attribute, current value, current subvalue from @Record. Use to Iterate through all the (sub)values in conjunction with A or F correlatives. If the specific attr,val,subval does not exist then the funtion will return an empty string.
classmethod IteratorInit()
The Initializer for iterating through values and subvalues in conjunction with A and F correlatives. This clears the moreValues and moreSubValues flags and sets the current value and current subvalue counters to 1.
classmethod IteratorTest() as %Boolean
The method tests to see if there are more values to process as indicated by the moreValues and moreSubValues flags and sets the current value and current subvalue counters accordingly. These flags and counters are used by the Conversion Processor to handle multi-values in A and F correlatives.
classmethod StackGetCOS() as %String
Get the COS shell recall stack
classmethod StackGetMV() as %String
Get the MV shell recall stack
classmethod StackSetCOS(arg As %String = "") as %Boolean
Set the passed string as the COS shell recall stack
classmethod StackSetMV(arg As %String = "") as %Boolean
Set the passed string as the MV shell recall stack
final classmethod TCL2Next() as %Integer
Call this method to get the next Item ID from the TCL II processed command line.
Note that you can enable TCL II (list, vs *, vs itemidlist) processing for an MVBASIC cataloged program by editing the CATALOG pointer for the program and adding '2' to Attribute 5:
 MYNEWVERB
0001 V
0002 MVB.3ý%SYS
0003 B
0004
0005 2
0006
0007 L
0008 MYNEWVERB
0009 BP
0010 SYSPROG
You can additionaly add the the following letters to attribute 5:
'C' - will cause the item body to be copied into @RECORD.
'N' - will allow new items and not check for an item's existence.
'D' - will force an open of the DICT rather than DATA section.
Returns:
1 - Success. The next Item Id has been placed in @ID and optionally the body has been copied into @RECORD
0 - End of Items or failure.
final classmethod buildMVClassXref(classDef As %ObjectHandle, ByRef ClassXref As %Collection.AbstractArray)
Build a cross reference of a MV class for maintenence purposes.
final classmethod camelCaseName(input As %String) as %String
Given an MV identifier name of some sort in input, such as a file name this method will return a name that is valid as a Cache class or property name using Camel Case.
final classmethod createMVProperty(pname, pord, classDef As %ObjectHandle, ByRef ClassXref As %Collection.AbstractArray)
Method designed for use in PROTOCLASS to generate a property defined by the MV DICT item that has been parsed and stored in %dictionary(pord)
final classmethod decomposeStatus(sc As %Integer)
If an error occurred in a call to an object or class, you can call this method and it will PRINT the error messages to the terminal.
final classmethod deleteMVProperty(pname, classDef As %ObjectHandle, ByRef ClassXref As %Collection.AbstractArray)
Method designed for use in PROTOCLASS to delete a property and maintain the cross reference.
final classmethod fileDescClassName(fdsc As %MV.File) as %String
Given an open file descriptor in fdsc, this method will suggest a valid name for a class or other Cache identifier that can be used to name it outside the MV environment.
final classmethod fileDescDataGlobal(fdsc As %MV.File) as %String
Given an open file descriptor, this method will return the fully qualified name of the global that stores the data.
Fully qualified means that it includes the NAMESPACE (account) within it such as ^|"TESTACCOUNT"|JIM.DATA
classmethod generateItypeMethods(classDef As %ObjectHandle)
This method will search a class for properties that are defined as itypes and add implementations of the calc and calcsql metods for those itypes to the class
final classmethod getPrimaryMVClass(fdsc As %MV.File, createFlg As %Boolean, NewName As %String = "") as %ObjectHandle
Given an open file descriptor, this method will return the class associated with that file.
If createFlg is set then the class will be created if it doesn't exist.
If NewName is specified then that name willl be used to create the class.
classmethod newUniqueGlobal(prefix As %String) as %String
Supplies the next avaiable unique global name using the same mechanisms as CREATE-FILE. Calling this will reserve a global name for you that is guranteed to be exclusive for your use. Note that the name returned does not include any namespace information and is unique across namespaces too. It is up to you to decide where (namespace wise) the global will exist.
final classmethod parseDict(dict As %MV.File, record As %String, name As %String)
Parses the supplied DICT entry record as element name into the public variable %dictionary using the open dict file variable if it needs to reference other elements in the DICT. If the method returns 0, then you can just exit your program and the MV shell will display any ERRMSG that has occurred.
Returns: nnn - Ordinal entry number in %dictionary
 0 - Could not open DICTionary or other error
final classmethod setPortNumber(portNo As %Integer) as %Status
Given a port number supplied by the caller, this function will set the current port number for this process. Should be called early on in the start up of the process for predictability, but can


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1. A time in a person's life (especially an older person) when their mental capacity is reduced to that of a child, as due to disease or old age. After my grandfather suffered his second stroke, he really entered into a second childhood.
2. A period of rejuvenated or renewed interest in things that interest a child. Being a part of my son's life as he grows up has been like a second childhood for me, because seeing him experience the magic of the world has made me appreciate it again as well. Jerry's sort of been in his second childhood ever since he lost his job, as he's gotten back into model train building and video games.
The dotage of old age; also, childlike playfulness in an adult. For example, Grandpa needs full-time care, now that he's in his second childhood, or Since he retired and started learning to fly, he's been in his second childhood. Depending on the context, this term may allude either to such problems of old age as losing one's mental or physical capacities or to delighting in new pleasures in a childlike fashion. [c. 1900]
1. An adult's second childhood is a period of time when they have fun and do things that children typically enjoy. My father was a model railway man. My mother passes this off as his second childhood.
2. An elderly person's second childhood is when their mind has become weak and they can no longer care for themselves. We were shocked by his rapid descent into a second childhood.

source: openbmb/Ultra-FineWeb


text:
What was patchouli originally used for?
The Origin of Patchouli
Even though it's native to Southeast Asia, the South Indian people, known as the Tamil, actually developed some of its first uses and named the plant. They used it for medicinal purposes, insect repellent, and even in some culinary ways or through herbal teas they drank.
What is the smell of patchouli?
Patchouli is most often associated with the woody fragrance family because of its robust, earthy character, but it's used to create stunning ambery, fougère, and chypre fragrances as well. As a standalone note, most would agree that patchouli mainly smells earthy and musky.
How do you identify patchouli?
Physical description. Patchouli is a shrubby perennial plant that grows up to 1 metre (3 feet) in height. The large fragrant leaves are roughly oval in shape and irregularly toothed and are borne oppositely along the branching stems. Both the stems and the leaves are densely hairy.
Why do hippies use patchouli oil?
The hippie culture emphasized unbounded love and inclusiveness. Patchouli oil is known for its calming and libido-enhancing effect, which made it popular among the hippies.
What smells similar to patchouli?
Check out these seven suggestions if you're considering a patchouli purchase but are looking for something more modern and less Woodstock.
- Tempo by Diptyque.
- Lumière Noire Pour Femme by Maison Francis Kurkdjian.
- Twilly d'Hermès Eau Poivrée by Hermès.
- Music For A While by Frédéric Malle.
- Mistral Patchouli by Atelier Cologne.
What is the oil that hippies use?
Throughout the ages, patchouli oil has been used as an incense. The oil gained popularity in the 60's and 70's mainly because of the hippie generation.
Is patchouli poisonous?
Although you can eat patchouli leaves, the oils are hazardous; call poison control if you swallow it. Keep the oils out of the reach of children, and do not use them on pregnant women or babies.
Is patchouli a strong smell?
Patchouli has a strong, sweet scent that falls into the musky-earthy category. Because of its strong fragrance, it's often used as a base scent in candles and perfumes. (The base scent is the fragrance you smell after the top and mid notes have melted away.)
What color is associated with patchouli?
Patchouli (/pəˈtʃuːli/; Pogostemon cablin) is a species of flowering plant in the family Lamiaceae, commonly called the mint or deadnettle family. The plant grows as a bushy perennial herb, with erect stems reaching up to 75 centimetres (2.5 ft) in height and bearing small, pale pink-white flowers.
What is the history of patchouli?
A rather surprising and dark historical use, Patchouli was commonly used to mask the smell of human decomposition during funerals for the dead during the 17th to 19th centuries due to its intense scent, in fact the name Patchouli is believed to have come from the Hindi word 'pacholi', which means 'to scent'.
Was patchouli used as an insecticide?
Because of recent awareness of the harmful effects of Deet, patchouli has resurfaced as a popular insecticide for mosquitoes, ants and other pesky bugs. Arabs also used it to repel fleas and lice from bedding. Patchouli is used in aromatherapy both a sedative and a simulant.
Is patchouli a male or female scent?
Patchouli by Reminiscence is a Amber Woody fragrance for women. Patchouli was launched in 1970.
Why is patchouli in so many perfumes?
Due to its intense scent, even when diluted, a little patchouli oil goes a long way. It is most commonly used as a base note in perfumes and is also prized as an excellent fixative (an ingredient that extends the life of other perfume ingredients).
Is patchouli an attractive scent?
Patchouli is a "warm" ingredient, says Freide, which is included in Chanel's Chance perfume. As one of the most popular fragrances in the Chanel scent range, it's easy to see why people love this: It's sexy without being overpowering, thanks to the inclusion of vanilla and the powdery orris.
Do bugs like the smell of patchouli?
Patchouli: Patchouli oil is another excellent essential oil for pest control. It has a strong, earthy scent that bugs hate.


for(x=0; x<10; x++)
 printf("\n");
}
void sleep(int y)
{
 int x;
 for(x=0; x<(y*10000); x++)
 ;
}
void quest(int in)
{
 if(in=1)
 {
 a();
 }
 if(in=2)
 {
 b();
 }
}
void a()
{
 //int a;
 int b;
 printf("What is the strongest type of bond?\n");
 printf("1. metallic\n");
 printf("2. network covalent\n");
 printf("3. ionic\n");
 printf("4. LDF\n");
 scanf("%d", &b);
 if(b==3)
 {
 printf("Correct!\n");
 sleep(1);
 }
 else
 {
 printf("wrong! It's ionic.\n");
 sleep(1);
 }
}
void b()
{
 //int c;
 int d;
 printf("What is the hybridization of carbon in carbon tetrachloride?\n");
 printf("1. sp\n");
 printf("2. sp3\n");
 printf("3. sp3d\n");
 scanf("%d", &d);
 if(d==2)
 {
 printf("Correct!\n");
 sleep(1);
 }
 else
 {
 printf("Wrong! It's sp3.\n");
 sleep(1);
 }
}
0

Expert Comment
by:euy
ID: _PHONE_
Hi again brain12. Your program is already complete, just missing some function prototypes, data types, etc. But content-wise, it's okay. So don't worry, you're doing great. About the progra I sent you, it's working (as you can probably see by now), but there is one thing I would be very happy to see you accomplish. That is, find the entry point for the input trapping, that would make the program stop and exit (or return for that matter). Because right now, it asks for those two questions, over and over. So you should designate a key (preferably the letter X) as the exit key. That means when the user presses the X key as answer to any of those two questions, the program terminates. Wouldn't that be great?,..c'mon, you can do it. Good luck and happy studying.
euy
0

Author Comment
by:brain12
ID: _PHONE_
Although this program may work on a C++ compiler, we are using the Borland turbo C 2.01 version in class and I am using it at home also so that my programs from home work at shchool. If you could rewrite it so that it works for this compiler it would be much appreciated. Thanks.
0

LVL 14
Accepted Solution
by:
AlexVirochovsky earned 100 total points
ID: _PHONE_
You code may be something as:
#include <stdio.h>
#include <dos.h>
#include <conio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#define MAX1 3
void a(void);
void b(void);
void start(int loop1);
void quest(int y);
void main(void)
{
 int loop1 = 0;
 clrscr();
 randomize();
 while (loop1 <= MAX1)
 {
 int e;
 printf("Do you want to play again?\n");
 printf("1. Yes\n");
 printf("2. no\n");
 scanf("%d", &e);
 if(e==1)
 start(loop1);
 else
 break;
 loop1++;
 }
}
void start(int loop1)
{
 int y=random(MAX1);
 if (y == loop1)
 quest(y);
}
void quest(int y)
{
 if (y == 1)
 a();
 else if (y == 2)
 b();
}
void a(void)
{
 int b;
 printf("What is the strongest type of bond?\n");
 printf("1. metallic\n");
 printf("2. network covalent\n");
 printf("3. ionic\n");
 printf("4. LDF\n");
 scanf("%d", &b);
 if (b==3)
 printf("Correct! Press any key\n");
 else
 printf("wrong! It's ionic.Press any key\n");
 getch();
}
void b(void)
{
 int d;
 printf("What is the hybridization of carbon in carbon tetrachloride?\n");
 printf("1. sp\n");
 printf("2. sp3\n");
 printf("3. sp3d\n");
 scanf("%d", &d);
 if (d==2)
 printf("Correct! Press any key\n");
 else;
 printf("Wrong! It's sp3.Press any key\n");
}
I hope, it helps. Alex
0

Author Comment
by:brain12
ID: _PHONE_
Thank you so much for your help. It ran beautifully. I only wish I understood everything in the code. Oh well. I'l save that for another day. Thanks again.
0
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text:
Meet Our Carbon Stewards
Friends of Alemany Farm grows food security and educates local residents about how they can become their own food producers. We strive to increase ecological knowledge and habitat value, and to sow the seeds for economic and environmental justice. All of the food we grow is given away for free—to neighbors, volunteers, The Free Farm Stand, and other groups.
James Denman Middle School


Implement PanTompkins ECG waveform R-Peak Recognition on RT-Thread+RA6M4
Created at 2022-08-15 14:43:02
Implement PanTompkins ECG waveform R-Peak Recognition on RT-Thread+RA6M4
By David528
Features
Generally, the traditional mathematical morphological method is the way that we're taking as the main method of ECG signal waveform recognition. In the morphological method, the recognition of R-peak is the foundation of the other waveform recognition. In this project, we're going to port the open source PanTompkins and do some transformation works, and an R-peak recognition technology implementation for producer and consumer models of RT-Thread systems will be added. Based on the collected ECG data, the ECG waveform is drawn in real time and the R peak is identified, and the ECG waveform graph (white) and the marked position (red vertical line) of the R peak recognition are plotted in the example below.
微信图片_20220814234202.jpg
Steps to follow
1. Create the project
Download/ Open RT-Studio IDE to create a new RT-Thread project based on the Renesas CPK-RA6M4 board.
2. Disable the system console and shell serial port input and output:
As I have only one serial port converter(USB to ttl), so I need to disable the system console and shell serial port imput and output, I can then use this serial port independently for the input of ECG data and the output of the calculation result.
In the configuration header file rconfig.h, disable the following configuration:
1. Disable the console serial output
2. //#define RT_USING_CONSOLE
3. Disbale Shell:
4. //#define RT_USING_FINSH
3. Access the hardware
We're focusing on the main card and the serial port converter( USB to ttl ), and it's quite easy to access.
微信图片_20220814234212.jpg
4. Add producer and consumer support to the open source PanTompkins algorithm
 1. First, use RT-Thread's rt_sem_init method to initialize the signals that required for producer and consumer and serial port reception:
1. // Initialize the semaphore used by producers and consumers
2. rt_sem_init(&sem_lock, "lock", 1, RT_IPC_FLAG_PRIO);
3. rt_sem_init(&sem_empty, "empty", MAXSEM, RT_IPC_FLAG_PRIO);
4. rt_sem_init(&sem_full, "full", 0, RT_IPC_FLAG_PRIO);
5.
6. // Initialize the serial port to receive the used signal
7. rt_sem_init(&rx_sem, "rx_sem", 0, RT_IPC_FLAG_FIFO);
 1. Use RT-Thread's rt_device_find and rt_device_open methods to open the serial port of device uart7
1. serial = rt_device_find(SAMPLE_UART_NAME);
2. if (!serial)
3. {
4. rt_kprintf("find %s failed!\n", SAMPLE_UART_NAME);
5. }
6.
7. res = rt_device_open(serial, RT_DEVICE_FLAG_INT_RX);
8. if (res == RT_EOK)
9. {
10. rt_device_set_rx_indicate(serial, uart_input);
11. }
 1. Main source code fragment for the producer implementation
 This part is based on serial port reception, do an infinite loop to receive serial port data, because the simulation sends to each ECG data that contains n to the board, so use n as the end mark of each ECG data. After receiving an ECG data, it is put into the consumer buffer.
1. while (1)
2. {
3. dataType data = 0;
4. char ch;
5. char str[10];
6. int i = 0;
7.
8. while (1)
9. {
10. if (rt_device_read(serial, -1, &ch, 1) != 1) {
11. rt_sem_take(&rx_sem, RT_WAITING_FOREVER);
12. continue;
13. }
14. if (ch != '\n') {
15. str[i] = ch;
16. if ( i < (sizeof(str) - 1))
17. i ++;
18. }
19. else {
20. data = atoi(str);
21. break;
22. }
23. }
24.
25. rt_sem_take(&sem_empty, RT_WAITING_FOREVER);
26.
27. rt_sem_take(&sem_lock, RT_WAITING_FOREVER);
28.
29. pc_buffer[pc_in] = data;
30. pc_in = (pc_in + 1) % MAXSEM;
31.
32. rt_sem_release(&sem_lock);
33. rt_sem_release(&sem_full); }
 1. Main source code fragment for the customer implementation
 This part of the code is to implement the data input
1. rt_sem_take(&sem_full, RT_WAITING_FOREVER);
2.
3. rt_sem_take(&sem_lock, RT_WAITING_FOREVER);
4.
5. num = pc_buffer[pc_out];
6. pc_out = (pc_out + 1) % MAXSEM;
7.
8. rt_sem_release(&sem_lock);
9. rt_sem_release(&sem_empty);
 1. At last, use RT-Thread thread creation method rt_thread_create, rt_thread_startup to create and enable two threads, one for producer and one for consumer.
1. tid = rt_thread_create("thread1",
2. producer_thread_entry, (void*)0, 3. THREAD_STACK_SIZE,
4. THREAD_PRIORITY, THREAD_TIMESLICE);
5. if (tid != RT_NULL)
6. rt_thread_startup(tid);
7.
8. tid = rt_thread_create("thread2",
9. consumer_thread_entry, (void*)0, 10. THREAD_STACK_SIZE,
11. THREAD_PRIORITY, THREAD_TIMESLICE);
12. if (tid != RT_NULL)
13. rt_thread_startup(tid);
5. Use Python to implement ECG data simulation input and ECG drawing.
Start from the main entry function, open a serial port COM3, and then create and enable two threads, one is to send the simulated ECG data, the other is to receive ECG data and identify the results. In the source code for drawing ECG waveforms and R-peak (red vertical lines), we're using QTimer and pygtgraph to draw the ECG graphics. Implemented Python source code:
1. import serial
2. import threading
3. import time
4. import pyqtgraph as pg
5.
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The Ionic Toothbrush
How does it compare with a sonic or power brush?
A clinical meta-analysis of oscillating brushes (power and sonic) found that only certain types remove significantly more plaque than a manual toothbrush. And even then, the amount of plaque removed was only up to 11% more than a manual brush.
Research on the Ionic toothbrush showed that it removes up to 48% more plaque than a manual toothbrush. The Ionic toothbrush works on a different principle to other toothbrushes, making it extremely effective, even in hard-to-reach areas of the mouth
How does it remove plaque?
As dentists know, teeth normally have a negative polarity while plaque has an opposite or positive polarity. This is why plaque clings to your teeth.
The Ionic toothbrush from Dr. Tung's breaks this ionic bond by temporarily reversing the polarity of tooth surfaces as you brush. The plaque molecules are then repelled by the teeth and drawn to the negatively polarized bristles of the IONIC toothbrush.
Is the IONIC toothbrush Clinically Proven?
Yes. There have been many studies demonstrating the effectiveness of the IONIC toothbrush. One important study at Marquette University School of Dentistry showed a very significant 36.17% reduction in plaque. This was up to 48% MORE effective than a manual toothbrush. The same study showed a big improvement in gingival health - up to 51% - for the IONIC toothbrush group.
Plaque scores were determined using the Turesky-Gilmore-Glickman Index. Likewise, gingival indices were determined using the Loe Silness Gingival Inflammation Index. Other studies in both Japan and the USA have shown similar improvements in plaque scores, as well as improvements in dental hypersensitivity.
How do I test the battery?
The power cell lasts up to two years with normal use. It is easy to test the battery on our new Ionic toothbrush with integrated battery tester!
 1. Push button. Red light indicates that the battery has power and is working properly.
 2. If the light does not go on when testing, it is time to order a new IONIC toothbrush set.
 1. We recommend testing the battery monthly.
 2. The light does NOT go on when USING the toothbrush.
Do I need to use toothpaste?
You can use the Ionic toothbrush with or without toothpaste since the cleaning action occurs through ionic action - reversing polarity to make teeth repel plaque - and not merely through the mechanical scrubbing action as occurs with other toothbrushes. (You have to use an abrasive like toothpaste with other toothbrushes to help with the mechanical cleaning, as with scrubbing a floor.)
The Ionic toothbrush on the other hand, makes teeth repel plaque and also attracts plaque to the toothbrush head, both due to Ionic technology. This means you do not have to brush so hard, which is better for the gums. You do need some fluid for the ionic effect to work - this can be water (a wet toothbrush head) or toothpaste, as per your preference.
What is your warranty on the toothbrush?
Dr. Tung's Products warrants the IONIC toothbrush for one year from the purchase date against all defects in manufacturing, workmanship and power source failure. If within one year of date of purchase, this product fails to function because of defects in materials or workmanship, it can be returned for replacement.
 1. All returns require a return authorization number (RMA) or will not be accepted.
 2. Returns must include a copy of the original invoice from, plus an RMA number, which can be obtained by simply emailing us at
 3. Items purchased at a retail store, third-party website or International location should be returned to that store/website under that company's standard returns policy.
 4. Replacement items will ONLY BE SHIPPED TO USA OR CANADIAN ADDRESSES. We DO NOT ship to any other countries.
How do I care for my IONIC toothbrush?
 - After brushing, rinse and dry your Ionic Toothbrush and store in a dry place. (If your toothbrush lies in water / moisture, this will reduce the battery life and will void the warranty)
 - It is preferable to store your toothbrush away from metal surfaces.
 - Remove the brush head occasionally to rinse off toothpaste residue.
Note: If you cannot easily remove the brush head, toothpaste residue build up on the metal rod may be the issue. You can loosen this residue by soaking your Ionic Toothbrush in hot water for 2 - 3 minutes. Once you've soaked your toothbrush, you should more easily be able to remove the brush head. You can help prevent this from happening in the future by removing the brush head every 3 - 4 weeks and wiping off any accumulated build-up.
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text:
by Teslime Kagar and Cem Kagar
We love hearing from the community members, sharing their inspiring stories. This time we would like to take you to a beautiful small town called Payas, in Hatay (Antioch), Turkey. What makes Payas special is the work of the local council, who have focused on providing educational opportunities to reduce inequality amongst the young people and children within their community. Payas council opened their STEM centre to help children especially those coming from disadvantaged backgrounds to develop 21st century skills. They have highly qualified teachers, helping children develop transferrable skills that are vital for both learning and employability.
The story of PAYAS Stem Centre
The key person who made it possible fort the STEM centre to open is the mayor of the city, Bekir Altan. He attended training sessions at Harvard University in politics and whilst he was completing his training he decided to complete a reserach on STEM education in the US. He concluded that STEM learning would help children develop skills that are vital for learning in both school and life. He also noted that these skills were a must for the jobs of both today and the future. He shared his thoughts with teachers from local schools and suggested that they should look into ways that they could provide children and young people with STEM learning opportunities. The team of teachers from local schools undertook research to find out about the impacts of STEM education on children's learning, challenges and issues around designing STEM learning experiences. They shared their report with the mayor of Payas, and he directly asked them to design the STEM centre. In November 2016 they opened the first STEM centre that was funded directly by the local council to rpovide free STEM workshops for children and young people. Their aim is to provide inclusive education for all and for this they work colloboratively with experts to support children with SEND. They organise workshops in many different areas, using a wide range of tools. For example they run Lego robotics workshops for children and the mayor was very impressed with Berat Mustafa Izgi's work in this area. In February 2017 children from the Payas STEM centre took part in a Turkey wide Lego competition and in April they went to Silicon Valley for an International Robotic competition and received the Judges special prize for their excellent work.
When we look around the World, we see that the importance of STEM learning is mainly understood and valued in developed countries. We need to act quickly and provide our young people with the opportunities to develop STEM skills that will help them with their learning both at school and in life and also with their employability. This would also contrubute to the country's economy. At Payas council, in our STEM centre we aim to help children to develop the knowledge and skills that would inspire them to become future scientists by providing activities in the area of science, engineering, programming, brain games and astronomy.
Students at Payas STEM Lab
One of the aims of Turkey's 2023 development plan is to support high quality education programmes. This is also one of the EU's 2020 strategy. Keeping this in mind, we aim to provide free STEM education, especially to girls and children from disadvantaged backgrounds, as we think that they are the future of Turkey and in order to reach the level of developed countries we need to prepare them for future opportunities and challenges. We believe that there is a relationship between, economy, development, and advancement in innovation and capacity to design & create technology.
Economy is based on information, therefore we need to educate the generation that will produce this information. For this we need to help them to develop transferrable skills that they can use for solving a wide range of problems. STEM education offers such an opportunity. We were inspired by Turkish scientist Prof.Dr.Aziz Sancar, who is the member of a team that won the Nobel prize. In Turkey he has been leading a Project called GIS ( Girls in Stem). His aim is to help girls in Year 6 to develop an understanding of global education, knowledge exchange and cultural interactions.
At our STEM centre we focus on; robotics, mathematical modelling, scientific inquiry, brain and vocabulary games. We use sensors, electronic circuits, 3d printers, Lego Mindstorms EV3 and many other engaging tools for teaching and learning.
In every century people have faced different problems. Scientific inquiry skill helps people to solve these problems not only in the field of science and mathematics but also in social sciences. Through our Project based learning approach we help our students to manage their learning process and design creative solutions collaboratively with their friends.
In robotics lessons students learn about:
- Digital literacy
- System design
- Team working
- Dijital design and animation
- Creating projects that will enable them to apply skills & knowledge from other subjects
- Product design and turning this into reality using programming skills
We cannot say whether we are educating the new Ibn-i Sina or Biruni, but we do know that we are cultivating curiosity and creativity in young learners. They are enthusiastic about learning through cross curricular approach and learning through making. We are delighted that we were able to establish this centre and set an example to other local authorities to take the inititive in education. There are incredible developments in Artificial intellegence and machines are becoming very clever for us. We need to be ready for this new era and this is only possible by educating the new digital makers generation.
Example activities from PAYAS STEM Centre
Developing Scientific Inquiry
In year 7, children focused on the mirror and light absorption and created a periscope. We first provided them with this information:
A periscope is an optical tool for making movement easier. In the past both the sea and land wars, if people couldn't see their target from safe distance, they would use a periscope. Also technicians and nuclear engineers use periscopes when they observe a deangerous area. Periscopes are mostly used in submarines.
We then asked the children to design and create their own persicopes. They used mirrors and cardboard to create their own periscopes. In this activity they learned about scientific concepts but at the same time experimented with different materials in the process of designing and making a periscope. This inter disciplinary approach to learning allowed students to link their understanding of concepts from different subject studies to construct their new knowledge.
Learning to code through robotics
In this session with Year 7 children we created an application to model time, period and frequency. For this project we asked children to form a group of 3. We asked them to explain time, period and frequency. They used their lesson notes and the Internet to complete a research and form their answers. In groups they brain-stormed their ideas.
We asked them to create an Arduino application.
We provided each group with 6 led, arduino, breadboard and cables. We asked them to ensure that their application meets the following conditions:
- Place the 6 LED next to each other
- Each LED light should turn on 1seconds after another.
- After all the LED's are turned on, the program should return to the beginning and repeat the process forever.
- They should share the jobs. One should do reserach, one should calculate, one should create the design and one should write the script.
- When they have completed the application, they should find the time period of the application first LED to last LED.
We gave students 40 minutes to complete the task. Apart from one group they all completed it successfully. We asked the group that had difficulties to find their error and debug it. They found that when they were writing the code, they forget to use ( ; ) and they also connected one of the cables to wrong place.
In this project Year 6 children were learning about decimals numbers. We asked them to complete an online research on the size of coins. We then gave them paper, scissors, and ruler and asked them to create coins (They called these STEM coins) at equal sizes. They then used these coins to shop from the STEM supermarket.
They completed their shopping and calculated the total of how much they spent in Turkish lira. They converted their STEM Money into Turkish lira. This allowed them to develop their understanding of decimal numbers in a daily life context.


text:
Saturdays: Feburary 2, 9, 16 and 23, 2013
Family Resource Library, 1st floor
Children's Medical Center
$30 per child
11:30 a.m. to 12:30 a.m.
This course is developed for teenagers to learn site signs in American Sign Language. Students will learn the alphabet in ASL and the production of numbers used in sign language. The course is designed for students between the ages of thirteen (13) and seventeen (17) years old. It will consist of four (4) consecutive classes for one (1) hour each week. The students will receive weekly handouts and will have opportunities to practice their skills. The instructor will provide activities and games to support the concepts taught.
To register or for more information,
please contact Culturally and Linguistically Appropriate Services (CLAS) _PHONE_.

source: HuggingFaceFW/fineweb-edu


Throughput time between one activity and multiple others
Hello everyone,
Is there the possibility of calculating the throughput time between between one activity lets say 'Create Order' and multiple occuring activities, lets say 'Change date'. The problem is that Change date can happen multiple time and at each occurance the time between create order and change date should be caluclated.
The process is for example:
'Create Order'-> '…' -> 'Change date' -> '…' -> 'Change date'
The result, which i want to see is a histogram chart with the information:
number of occurances
number of days between create order and change date
In this example giving me 2 bars for each time difference.
Hope i made my case clear.
Thanks for any support!
Hi there,
You can solve this problem through the use of AVTIVITY_LEAD which allows you to identify Activity Sequences and do calculations on them. Here you can find more information on this:
To create a histogram, you can then use custom dimensions to show your result.
Hope that helps,
Celonis Data Science Team
Thanks for the message, but somehow when clicking on your link the login for microsoft is opened. When proceeding with my microsoft credentials the access is denied.


text: In Nigeria, religious intolerance between Muslims and Christians continues to increase. Muslim women are among those who have felt the most impact from the resulting religious prejudice, intolerance, and discrimination, especially in their workplaces. While many studies have been conducted to investigate the myriads of challenges facing women in general and Muslim women in particular, little research has been done on the challenges they face in their workplaces. This study intends to fill this gap by studying Female Muslim Medical Practitioners (FMMP) at the University College Hospital (UCH), Ibadan, Nigeria. Purposive and snowball samplings were used to select seventy research participants. Face-to-face and in-depth individual interviews, which lasted between 30 minutes and three hours each, were used to collect data for the study, in which relevant statistical tests were used for data analysis. The study reveals that FMMPs in the hospital encounter several challenges, such as donning the hijab (the Muslim headscarf), performing daily prayers (salat), and employment opportunities. There is also evidence of high-level discrimination in the workplace. Finally, the study recommends that the management of UCH enhance its practice and policies regarding religious tolerance, equality, fairness, unity, and cooperation amongst its administrative staff and personnel.


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Структурные изменения и инновации в системе научных коммуникаций
This article is devoted to study of key structural changes taking place in scholarly communication. The author describes some tendencies which could be regarded as evidences of the crisis in the existing system of academic publishing. The special attention is paid to the problem of commercialization of this system. Scientific community tries to overcome the emerging abuses using such remedies as new digital technologies and cooperation of libraries and different research organizations. Brief analysis of these initiatives is included.


text:
To flee is defined as to run away from someone or something to get away from something unpleasant.(verb)
When you run away from a ghost, this is an example of a situation where you flee.
See flee in Webster's New World College Dictionary
Origin: ME fleen < OE fleon: see flow
See flee in American Heritage Dictionary 4
verb fled fled (flĕd), flee·ing, flees verb, intransitive
Origin: Middle English flen
Origin:, from Old English flēon; see pleuin Indo-European roots.
Learn more about flee


As installed, the Oracle ATG Web Commerce default configuration enables event messaging for distributed TCP caching mode; you only need to ensure that the das_gsa_subscriber table is properly created in your database.
Event server
All SQL repositories in a given Oracle ATG Web Commerce instance set their eventServer property to the same event server component. The default component path is:
Event server ports
By default, each event server listens for cache invalidation events on a port that is randomly assigned by the operating system. Alternatively, you can set an event server component's port property to a permanent port number—for example, in order to bypass a firewall.
Event server connection timeout
Occasionally, an Oracle ATG Web Commerce instance's event server is inaccessible—for example, the host machine has gone down. You can control the length of time allowed to establish a socket connection to an event server through its connectTimeout property—by default, set to 60000 milliseconds.
If a connection attempt times out, the event server attempting to connect prints a warning message. Also, the routing information for the item descriptor on the unresponsive Oracle ATG Web Commerce instance is removed from das_gsa_subscriber. The event server starts a new connection attempt after the time span specified in its connectRetryTimeout property, initially set to 120000 milliseconds.
GSAEvent timeout
An event server determines whether other event servers are alive by their responses to the GSAEvents that it sends. If an event server does not respond within the time span specified by its sendRemoteEventTimeout property—by default, 60000 milliseconds—the sending event server assumes an invalid socket connection to the non-responding event server and drops the corresponding GSAConnection from its connection table. It then attempts to reconnect within the time span specified by its connectTimeout property.
An event server uses its sendRemoteEventTimeout property only if its enableSendRemoteEventTimeout property is set to true (the default setting).


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1.5 cm in mature plant height.
4. Understand that patterns of association can also be seen in bivariate categorical data by displaying frequencies and relative frequencies in a two-way table. Construct and interpret a two-way table summarizing data on two categorical variables collected from the same subjects. Use relative frequencies calculated for rows or columns to describe possible association between the two variables. For example, collect data from students in your class on whether or not they have a curfew on school nights and whether or not they have assigned chores at home. Is there evidence that those who have a curfew also tend to have chores?
Learn more about our online math practice software.


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Nightjars are largely nocturnal family. They look like owls, with large heads and eyes and a cryptic plumage. The family name caprimulgidae was given to them after some superstitious belief that because of their wide mouths, the birds suckled goats.
In Kenya we have 13 different species of Nightjars, wide spread in different habitats across the country. The photo appearing above was taken at a rocky countryside of Lake Baringo. Most species are nocturnal or active at dusk, and are solitary and retiring. They concentrate their foraging bouts during twilight hours.
By day, they roots on exposed grounds or rocks, in leaf litter, or on branches. When roosting, they adopt a horizontal posture, in contrast to owls.
Nightjars have very large eyes, adopted to low light condition. They eye have a tapetum, a reflective membrane that increases the amount of light entering the eyeball. Its presence causes reflective "eye-shine" when the eye are illuminated by artificial light.


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VA Vs IPS – Which Panel is the Best?
Even after the introduction of newer display technologies, LCDs still remain relevant even today. LCD displays are used for multiple purposes (TV, Monitor, Mobile Phones, Laptops, Automobiles, etc.) and one single configuration cannot satisfy all the purposes. So, LCD displays come with two different panels – VA (Vertical Alignment) and IPS (In-Plane Switching) to satisfy the different viewing needs of consumers.
A VA panel offers a superior contrast ratio but a narrow viewing angle. Contrarily, an IPS panel offers a wide viewing angle but a low contrast ratio.
So, ultimately the question of which panel is best depends on how you plan to use the display.
The following article explores the different advantages and disadvantages of the LCD panels and which one you should go with based on your needs.
NOTE: In the rest of the article, we used the term 'TV' as a general display device and the evaluation applies to TVs and Computer Monitors as well.
1. VA (Vertical Alignment) Panel
VA Panel
As the name suggests, the liquid crystals in a VA Panel are aligned in a vertical or perpendicular direction to the glass substrate.
When you pass polarized light through the cells, the second set of cells that lies perpendicular to the first blocks the light. This creates a black state.
Now, when you apply an electric current, it causes the cells to align in a horizontal manner and allow the light to pass through. This causes to display the picture.
As mentioned earlier, displays with VA Panels provide a great contrast ratio. You can find VA panels that typically come with contrast ratios of 3000:1 or 6000:1. A comparable IPS panel will only have a contrast ratio of 1000:1.
But they fall behind when it comes to viewing angles. Viewing angle denotes the angle at which you can sit and watch the TV / monitor without a drop in the picture quality.
VA panels have narrow viewing angles. You will only be able to have an immersive experience when you sit straight opposite the display. The wider angles will not provide you the same experience.
The VA panels are great for gaming as generally, you will straight opposite to the monitor while playing games
Pros
 - It offers contrast ratios that are 3x times better than that of IPS panels.
 - It has good black uniformity.
 - It is affordable.
Cons
 - It has a narrow viewing angle. It does not provide the same experience when you sit wider to the TV.
 - It has a low color range.
 - It has a slow response time.
2. IPS (In-Plane Switching) Panel
IPS Panel
In this, the liquid crystals are arranged parallel to the glass substrate instead of the perpendicular alignment. Furthermore, the structure of crystals and the placement of electrodes differ from the one used in VA panels. The electrodes occupy more space that results in lower contrast and brightness of the screen.
With the IPS panels, you can view the TV / monitor from a wide-angle and still get an impressive picture quality. Unlike VA panels, you will notice very little difference in color reproduction when you sit at a wide-angle from the display.
But when it comes to black uniformity, the IPS panels are sub-par. These panels do a poor job in displaying a bright image in the center of a completely black screen.
One more major drawback with the IPS panels is that they exhibit a distinct phenomenon called 'IPS Glow'. You will notice some light patches on the corners of the screen. This happens when excessive light is passed through the screen.
Initially, IPS panels are mainly used in TVs due to their wide viewing angles, as we can watch TV in our living room from anywhere. But due to their better quality, color accuracy and response time, LCD panels gradually occupied the high-end computer monitor and laptop screens
Pros
 - IPS panels have wider viewing angles. You will notice little difference in the picture quality even when you watch the TV from extreme angles.
 - It has a high refresh rate. You will enjoy a smooth and fluid gaming experience.
 - It has a low response time.
 - It has a decent refresh rate.
Cons
 - Their contrast ratio is not as good as that of VA panels.
 - It has poor black uniformity.
 - The IPS panels are very expensive.
VA Vs. IPS: Table Comparison
We have listed the different features you have to consider while buying a TV and how the panels fare against each feature.
FactorVAIPS
Picture QualityGoodModerate
Viewing AnglesNarrow viewing angleWide viewing angles
Contrast RatioVery high (6000:1)Moderate (1000:1)
Response TimeLowest Up to 1ms ( offers an "instant" response )
Highest 16 ms ( slow response )
Lowest is good
For Gamers less than 2 ms
For Normal users less than 5ms
Lowest Up to 0.5ms ( offers an "instant" response )
Highest 16 ms ( slow response )
Lowest is good
For Gamers less than 2 ms
For Normal users less than 5ms
Refresh Rate Highest Possible – 144 Hz,160 Hz, 165 Hz, 240 Hz
Lowest Possible – 60 Hz,75 Hz, 100 Hz
Highest Refresh Rate is Good
Highest Possible 144 Hz,160 Hz, 165 Hz, 240 Hz, 280 Hz, 360 Hz
Lowest Possible 60 Hz,75 Hz, 100 Hz
Highest Refresh Rate is Good
Black UniformityBetter black uniformityPoor black uniformity
PerformanceSlow response time, high refresh rate, and low input lagHigh response time and highest refresh rates
Suitable ForOffice or study use, online games, and high-end PC gamers.Digital artists and programmers
PriceModerateExpensive
Factors you need to check while choosing your TV panel
Below is the comprehensive list of factors that you have to check before choosing your TV panel,
Image Quality
IPS: These panels have the highest color range. You will be able to enjoy a realistic gaming experience. Besides, they have better viewing angles. So, you won't notice any drop in picture quality even when you are not sitting in front of your TV / monitor.
VA: Even though the color range is not as great as the IPS panel, it does a pretty good job in showing the color variations. But the viewing angle is narrow. So, you have to sit straight opposite the TV / monitor.
VA panel compensates for its decent color range with an impressive contrast ratio. You will be able to see great detailing in the difference between light and dark colors.
Image Quality
The clear winner here is IPS panel because of its high color range and better viewing angle.
Refresh Rate
IPS: IPS panels have one of the highest refresh rates. While you easily find an IPS panel with a refresh rate of 144Hz, some of the latest ones come with a refresh rate of 360Hz. If you are a serious online-gamer, digital artist, or video editor, then you have to go with the highest refresh rate within your budget.
VA: VA panels have lower refresh rates than IPS panels. Most VA panels come with a refresh rate of 120Hz. If you want to have a higher refresh rate, then you have to be willing to spend extra. VA panels have a maximum refresh rate of 240Hz.
Refresh Rate
The winner is IPS panel because of its high refresh rate of 360Hz.
Response Time
IPS: IPS panels generally come with a response time of 4 milliseconds. This would suffice for watching TV or playing most games. But, if you are playing racing games or first-person shooting games, you need to have a response time of less than 2 milliseconds.
Luckily, some of the latest IPS panels come with super-fast refresh rates of 1 to 2 milliseconds.
VA: VA panels generally have a slower response time than IPS panels with 5 milliseconds. So, there is a higher chance for you to experience motion blur. But, some of the VA panels that come with an expensive price tag have faster response times.
Response Time
The winner is IPS panel because of its fast response time.
Viewing Angle
IPS: When it comes to the viewing angle, IPS panels far outweigh the VA panels. They have wider viewing angles. You will experience no drop in picture quality even if you sit and watch the TV from an extreme angle.
VA: The VA panels have a very narrow viewing angle. You have to sit as close to the straight axis of the TV to enjoy the picture quality. If you sit wider, there will be a significant loss in the picture quality.
Viewing Angle
The winner is IPS panel because it has a wider viewing angle.
Contrast Ratio
The contrast ratio refers to the difference between the maximum and minimum brightness. It is the capacity of the display monitor to show dark colors darker and bright colors brighter.
IPS: IPS panels do a decent job in the contrast ratio segment but they are nowhere close to that of VA panels. An IPS panel offers a contrast ratio of 1000:1. When you watch a black color environment in an IPS panel, the black color will be slightly greyed out.
VA: VA panels offer a superior contrast ratio of 6000:1 that is very impressive. It has the capacity to show dark environments as darker. So, you will enjoy the picture detailing shown by the VA panels.
Contrast Ratio
The winner is VA panel because of its high contrast ratio of 6000:1.
Black Uniformity
Black uniformity is a monitor's ability to display black color throughout its screen.
IPS: IPS panels are not really great at displaying the uniform black color throughout the screen. Due to the


Fix: Scripted Diagnostics Native Host has Stopped Working
Many people come across an error message stating "Scripted diagnostics native host has stopped working". This issue usually comes up when you are updating your drivers or accessing some system files. This error has been there for a long time and is associated with a lot of different modules.
These modules may range from Windows Update, your Disk, several system files etc. We have compiled a list of workarounds to fix this issue. Start from the top and work your way down. There is no 'definite' fix for this error as all computer configurations are different. If anything doesn't work, we can try restoring your system to a previous restore point or doing a clean installation of Windows.
Solution 1: Checking your Disk
It is possible that your disk has bad sectors which are causing this problem. We can try checking your disk fully and see if anything comes up. Backup up your data and configurations before carrying out all these solutions just in case.
 1. The computer might prompt for a restart. If it does, follow the instructions and check if the error still persists.
Solution 2: Checking Recently Installed Update/Installing Updates Manually
If the above solution didn't work, we can check if any recent update was installed on your computer. Many users reported that updating Windows was the culprit. After uninstalling the update (after which they started experiencing the problem), the problem went away. If this doesn't work, then we can try the opposite; we can check if Automatic updates are turned off. If they are, we can try updating manually and check if it makes any difference.
 1. Press Windows + S, type "windows update" and open the application which comes forth in the results.
 2. Once in Update settings, click on "View installed update history".
 3. Click on "Uninstall updates" which comes forth in the next window.
 4. In front of you will a list of all the recently installed updates along with the date and time. Diagnose and determine after which update you started to experience the problem. Select it and click "uninstall". Restart your computer afterward and check if the error is solved.
If you have disabled the Windows Update mechanism on your PC, you should turn it back on and check if there are any updates available to be installed. Some users reported that installing the latest updates available seems to solve their problem. You can more guidance on how to manually run Windows Update.
Solution 3: Diagnosing Problem using Reliability Monitor
If the above methods don't help in solving the problem, we can resort to more advanced ways to check where the problem is originating from. We will use an inbuilt Microsoft application called "Reliability Monitor". It documents all system events along with system updates and all the application/system crashes (if any). If you happen to diagnose the problem, you can streamline your troubleshooting process and proceed with the fix.
 1. Press Windows + S, type "Security and Maintenance" and open the application which returns in the search.
 2. Expand the category of "Maintenance" and click on "View reliability history" under the heading of "Report problems".
 3. Windows will take a while to compute all the events which occurred in the recent days. After a few seconds, it will display a graph like this. Blue exclamation marks mean that there was an update installed on your computer (including security updates and virus definitions etc.). Red crosses mean that there was a crash event. You can click on it to view all the related information.
Using these details, you can check and relate to any errors/updates happening after or before you started experiencing the problem. From here you would get a better idea which way to proceed.
Solution 4: Deleting CrashHandler.vbs
Another workaround which worked for many people was deleting the file "CrashHandler.vbs". This is a file present at each user configuration and is unique for each different user on the system. You can copy the file to another location so you can always restore the file if anything goes wrong. Rename the file and copy it to another location. Then delete the files and restart your computer and check if the problem is solved. The file can be located in this file path. Do note that some of these folders are hidden so make sure that "Show hidden folders" is enabled in file explorer.
C:\Users\\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CrashHandler.vbs.
Solution 5: Running SFC and DISM
System File Checker (SFC) is a utility present in Microsoft Windows which allows the users to scan their computers for corrupt files in their operating system. It is a very useful tool for diagnosing the problem and checking if any problem is due to corrupt files in windows.
We can try running SFC and see if our problem gets solved. You will get one of the three responses when running SFC.
 - Windows didn't find any integrity violations
 - Windows Resource Protection found corrupt files and repaired them
 1. Press Windows + R to launch the Run application. Type "taskmgr" in the dialogue box and hit Enter to launch your computer's task manager.
 2. Now click on File option present at the top left side of the window and select "Run new task" from the list of options available.
 3. Now type "powershell" in the dialogue box and check the option underneath which states "Create this task with administrative privileges".
 4. Once in the Windows Powershell, type "sfc /scannow" and hit Enter. This process may take some time as your entire Windows files are being scanned by the computer and being checked for corrupt phases.
 5. If you encounter an error where Windows states that it found some error but was unable to fix them, you should type "DISM /Online /Cleanup-Image /RestoreHealth" in the powershell. This will download the corrupt files from the Windows update servers and replace the corrupt ones. Do note that this process can also consume some time according to your internet connection. Don't cancel at any stage and let it run.
If an error was detected and was fixed using the above methods, restart your computer and check if the taskbar started working normally.
Solution 6: Starting Computer in Clean-Boot state
If all the above solutions don't work, we can try Clean Booting. This boot allows your PC to turn on with a minimal set of drivers and programs. Only the essential ones are enabled while all the other services are disabled. If the error doesn't occur in this mode, you should enable the processes back on only with small chunks and check if the error returns. If it doesn't, you can turn on another chunk and check. This way you will be able to diagnose which process is causing the problem.
 1. Press Windows + R to launch the Run application. Type "msconfig" in the dialogue box and press Enter.
 2. Navigate to the Services tab present at the top of the screen. Check the line which says "Hide all Microsoft services". Once you click this, all Microsoft related services will be disabled leaving behind all the third-party services (you can also disable all Microsoft related processes too and check more extensively if there are no third-party services causing the problem).
 4. Click Apply to save changes and exit.
 3. Now restart your computer and check if the problem appears again. If it doesn't, enable a small chunk (explained at the start) and then check again. If you diagnose a specific service, you can try restarting or disabling it using services window.
Solution 7: Restoring from last Restore Point/ Doing a Clean Install
If all the above methods don't work, we are left with no choice but to restore Windows to the last restore point. If you don't have a last restore point, you can install a clean version of Windows. You can use the utility "Belarc" to get all your licenses saved, backup your data using external storage and then perform a clean install.
Here is the method on how to restore Windows from the last restore point.
 1. Press Windows + S to launch the start menu's search bar. Type "restore" in the dialogue box and select the first program which comes in the result.
 2. Once in the restore settings, press System Restore present at the beginning of the window under the tab of System Protection.
 3. Now a wizard will open navigating you through all the steps to restore your system. Press Next and proceed with all the further instructions.
 4. Now select the restore point from the list of options available. If you have more than one system restore points, they will be listed here.
 5. Now windows will confirm your actions for the last time before it starts the system restore process. Save all your work and backup important files just in case and proceed with the process.
You can learn more about system restore to gain more knowledge about what it does and what are the processes involved.
 1. Once you have restored successfully, log into the system and check if the error at hand got fixed.
If you don't have any restore points, you can do a clean install of Windows using bootable media. You check our article on how to create a bootable media. There are two ways: by using media creation tool by Microsoft and by using Rufus.
Kevin Arrows
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|This article does not cite any references or sources. (December 2009)|
The barca-longa was a two or three-masted lugger found on the coasts of Spain and Portugal as well as more widely in the Mediterranean Sea. They were used in Spain and Portugal for fishing but were employed by the Royal Navy in Mediterranean waters, for shore raids or as dispatch boats. In general, they were not in Royal Navy ownership. The Oxford English Dictionary's earliest reference is from 1681. Others are 18th-century.
|This article about a type of ship or boat is a stub. You can help Wikipedia by expanding it.|


text:
The Chibanian age was named after Chiba, the Japanese prefecture where the sediment was found, and was recently ratified by the International Union of Geological Sciences. That period is important because it included the most recent reversal of Earth's magnetic field , an article in Eos said . At various points in our planet's history, Earth's magnetic north and south poles have swapped locations. When that flip happens, it leaves a mark in rocks around the planet. The cliffside sediment in Chiba, Japan, may offer a richer record of that reversal than any other site on Earth.
: (interesting facts about Earth
Aurora photos: See breathtaking views of the northern lights Originally published on (Live Science) Read More


text:
A PHS HandbookPete Prown, and Peter Prown
Community gardens unite neighbors and friends who plant and tend thriving gardens that provide fresh food and flowers but also fellowship. Community Gardening, by the experts at the Pennsylvania Horticultural Society, is an indispensible resource for budding and established gardeners who want to work together to transform patches of unused land into bountiful green spaces that nourish and inspire.
Community Gardening is full of practical information on everything from securing land for building a garden to working with local businesses and the wider community to sustaining a garden over many years. The full-color book features examples based on PHS's highly regarded Philadelphia Green program, as well as brief profiles of community gardens in other cities.
Distributed by Temple University Press for the Pennsylvania Horticultural Society


How to log security events in a Python application?
Member
by susana , in category: Python , a year ago
How to log security events in a Python application?
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2 answers
Member
by arnoldo , 10 months ago
@susana
Logging security events in a Python application is an important aspect of maintaining the security of the application. Here are some steps to help you get started:
 1. Import the logging module:
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import logging
 1. Create a logger object:
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logger = logging.getLogger('security')
 1. Set the logging level:
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logger.setLevel(logging.INFO)
 1. Add a file handler to write the logs to a file:
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handler = logging.FileHandler('security.log')
logger.addHandler(handler)
 1. Add a format to the logs:
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formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)
 1. Use the logger object to log security events:
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logger.info('Security event occurred')
You can customize the logging level, filename, and format as per your requirements. Additionally, you can also use other types of handlers like StreamHandler or SysLogHandler to write the logs to different destinations.
Member
by josh , 9 months ago
@susana
There are several ways to log security events in a Python application. One way is to use the built-in logging module in Python. This allows you to create log files that record various security events such as login attempts, attempted breaches, and unauthorized access. Here's an example of how you can use the logging module to log security events:
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import logging
logger = logging.getLogger('security')
logger.setLevel(logging.INFO)
handler = logging.FileHandler('security.log')
handler.setLevel(logging.INFO)
formatter = logging.Formatter('%(asctime)s - %(levelname)s:%(message)s')
handler.setFormatter(formatter)
logger.addHandler(handler)
# Example usage
user = 'admin'
logger.info(f"{user} logged in successfully.")
In this example, we create a logger object called 'security' with a level set to INFO. We then create a file handler that writes log messages to a file called 'security.log'. The handler is set to the INFO level as well. Finally, we set a formatter that includes a timestamp, log level, and the log message.
To use this logger, you simply need to call it in your code when an event occurs that you want to log, such as a successful login attempt as shown in the example. This will create a log message in the file that includes the timestamp, log level, and message.
Another way to log security events is by using a third-party logging platform such as Splunk or ELK. These platforms allow you to aggregate and analyze logs from multiple sources, including your Python application, to gain insights into security events and potential threats.