Summary

HandWiki is the world's largest wiki-style encyclopedia dedicated to science, technology and computing. It allows you to create and edit articles as long as you have external citations and login account. In addition, this is a content management environment that can be used for collaborative editing of original scholarly content, such as books, manuals, monographs and tutorials.

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Thermodynamics and an Introduction to Thermostatistics
Thermodynamics and an Introduction to Thermostatistics is a textbook written by Herbert Callen that explains the basics of classical thermodynamics and discusses advanced topics in both classical and quantum frameworks. The textbook contains three parts, each building upon the previous. The first edition was published in 1960 and a second followed in 1985.
  • 1.3K
  • 22 Nov 2022
Topic Review
Caesars Rewards
Caesars Rewards (Europe/North Africa: Player Rewards and South Africa: Emerald Rewards; formerly Total Gold and Total Rewards) is a casino loyalty program at nearly all Caesars Entertainment Corporation (formerly Harrah's Entertainment) locations.
  • 2.4K
  • 22 Nov 2022
Topic Review
Social Construct Theory of ADHD
The social construction theory of ADHD argues that attention deficit hyperactivity disorder is not necessarily an actual pathology, but that an ADHD diagnosis is a socially constructed explanation to describe behaviors that simply do not meet prescribed social norms. Some proponents of the social construct theory of ADHD seem to regard the disorder as genuine, though over-diagnosed in some cultures. These proponents cite as evidence that the DSM IV, favored in the United States for defining and diagnosing mental illness, arrives at levels of ADHD three to four times higher than criteria in the ICD 10, the diagnostic guide favored by the World Health Organization. A popular proponent of this theory, Thomas Szasz, has argued that ADHD was "invented and not discovered."
  • 10.8K
  • 22 Nov 2022
Topic Review
Flying Disc Techniques
Flying discs (including Frisbees) can be thrown in many ways. Each throw involves snapping the wrist as well as flicking the arm to impart gyroscopic stability to the disc and accelerate its mass to a certain velocity. Without spin, a disc will wobble and fall; without velocity, the disc will not go anywhere. Using these two guidelines, any number of throws are possible. Most discs are designed to create lift when thrown with the flat side up.
  • 2.1K
  • 22 Nov 2022
Topic Review
Perl 6 Rules
Perl 6 rules are the regular expression, string matching and general-purpose parsing facility of Perl 6, and are a core part of the language. Since Perl's pattern-matching constructs have exceeded the capabilities of formal regular expressions for some time, Perl 6 documentation refers to them exclusively as regexes, distancing the term from the formal definition. Perl 6 provides a superset of Perl 5 features with respect to regexes, folding them into a larger framework called rules, which provide the capabilities of a parsing expression grammar, as well as acting as a closure with respect to their lexical scope. Rules are introduced with the rule keyword, which has a usage quite similar to subroutine definitions. Anonymous rules can be introduced with the regex (or rx) keyword, or simply be used inline as regexes were in Perl 5 via the m (matching) or s (substitution) operators.
  • 1.5K
  • 22 Nov 2022
Topic Review
Shopping Cart
A shopping cart (American English) or trolley (British English), also known by a variety of other names, is a cart supplied by a shop, especially supermarkets, for use by customers inside the shop for transport of merchandise to the checkout counter during shopping. In many cases customers can then also use the cart to transport their purchased goods to their vehicles, but some carts are designed to prevent them from leaving the shop. In many places in the United States and the United Kingdom , customers are allowed to leave the carts in designated areas within the parking lot, and store personnel will return the carts to the storage area. In many continental European premises, however, coin- (or token-) operated locking mechanisms are provided to encourage shoppers to return the carts to the correct location after use. Studies have shown that it is advisable for shoppers to sanitize the handles and basket areas prior to handling them or filling them with groceries due to high levels of bacteria that typically live on shopping carts. This is due to the carts having a high level of exposure to the skin flora of previous users.
  • 8.9K
  • 22 Nov 2022
Topic Review
Solar Chemical
Solar chemical refers to a number of possible processes that harness solar energy by absorbing sunlight in a chemical reaction. The idea is conceptually similar to photosynthesis in plants, which converts solar energy into the chemical bonds of glucose molecules, but without using living organisms, which is why it is also called artificial photosynthesis. A promising approach is to use focused sunlight to provide the energy needed to split water into its constituent hydrogen and oxygen in the presence of a metallic catalyst such as zinc. This is normally done in a two-step process so that hydrogen and oxygen are not produced in the same chamber, which creates an explosion hazard. Another approach involves taking the hydrogen created in this process and combining it with carbon dioxide to create methane. The benefit of this approach is that there is an established infrastructure for transporting and burning methane for power generation, which is not true for hydrogen. One main drawback to both of these approaches is common to most methods of energy storage: adding an extra step between energy collection and electricity production drastically decreases the efficiency of the overall process.
  • 898
  • 22 Nov 2022
Topic Review
Typeperf
As the next version of Windows NT after Windows 2000, as well as the successor to Windows Me, Windows XP introduced many new features but it also removed some others.
  • 1.5K
  • 22 Nov 2022
Topic Review
Service Loose Coupling Principle
Within the service-orientation design paradigm, service loose coupling is a design principle that is applied to the services in order to ensure that the service contract is not tightly coupled to the service consumers and to the underlying service logic and implementation. This results in service contracts that could be freely evolved without affecting either the service consumers or the service implementation.
  • 1.1K
  • 22 Nov 2022
Topic Review
Mental Health in Education
Mental health refers to the emotional well-being of a person. It is often viewed as an adult issue, but in fact, almost half of adolescents in the United States are affected by mental disorders, and about 20% of these are categorized as “severe.” Mental health issues can pose a huge problem for students in terms of academic and social success in school. Education systems around the world treat this topic differently, both directly through official policies and indirectly through cultural views on mental health and well-being. These curriculums are in place to effectively identify mental health disorders and treat it using therapy, medication, or other tools of alleviation.
  • 2.1K
  • 22 Nov 2022
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