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Recession of 1937–38
The recession of 1937–1938 was an economic downturn that occurred during the Great Depression in the United States. By the spring of 1937, production, profits, and wages had regained their early 1929 levels. Unemployment remained high, but it was slightly lower than the 25% rate seen in 1933. The American economy took a sharp downturn in mid-1937, lasting for 13 months through most of 1938. Industrial production declined almost 30 percent, and production of durable goods fell even faster. Unemployment jumped from 14.3% in May 1937 to 19.0% in June 1938. Manufacturing output fell by 37% from the 1937 peak and was back to 1934 levels. Producers reduced their expenditures on durable goods, and inventories declined, but personal income was only 15% lower than it had been at the peak in 1937. In most sectors, hourly earnings continued to rise throughout the recession, partly compensating for the reduction in the number of hours worked. As unemployment rose, consumer expenditures declined, leading to further cutbacks in production.
  • 4.1K
  • 25 Oct 2022
Topic Review
Levels-of-Processing Effect
The levels-of-processing effect, identified by Fergus I. M. Craik and Robert S. Lockhart in 1972, describes memory recall of stimuli as a function of the depth of mental processing. Deeper levels of analysis produce more elaborate, longer-lasting, and stronger memory traces than shallow levels of analysis. Depth of processing falls on a shallow to deep continuum. Shallow processing (e.g., processing based on phonemic and orthographic components) leads to a fragile memory trace that is susceptible to rapid decay. Conversely, deep processing (e.g., semantic processing) results in a more durable memory trace. This theory contradicts the multi-store Atkinson-Shiffrin memory model which represents memory strength as being continuously variable, the assumption being that rehearsal always improves long-term memory. They argued that rehearsal that consists simply of repeating previous analyses (maintenance rehearsal) doesn't enhance long-term memory. In a study from 1975 (Craik and Tulving) participants were given a list of 60 words. Each word was presented along with three questions. The participant had to answer one of them. Those three questions were in one of three categories. One category of questions was about how the word was presented visually ("Is the word shown in italics?"). The second category of questions was about the phonemic qualities of the word ("Does the word begin with the sound 'bee'?"). The third category of questions was presented so that the reader was forced to think about the word within a certain context. ("Can you meet one in the street [a friend]"?) The result of this study showed that the words which contained deep processing (the latter) were remembered better.
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  • 25 Oct 2022
Topic Review
Grid Reference System
A grid reference system, also known as grid reference or grid system, is a geographic coordinate system that defines locations in maps using Cartesian coordinates based on a particular map projection. Grid lines on maps illustrate the underlying coordinate system. Such coordinate lines are numbered to provide a unique reference to each location on the map. Grid coordinates are normally eastings and northings.
  • 35.1K
  • 25 Oct 2022
Topic Review
Forensic Serology
Forensic serology is the detection, identification, classification, and study of various bodily fluids such as blood, semen, saliva, and urine, and their relationship to a crime scene. A forensic serologist may also be involved in DNA analysis and bloodstain pattern analysis. Serology testing begins with presumptive tests which gives the analyst an indication that a specific bodily fluid may be present, but cannot completely confirm its presence. Following the presumptive tests, confirmatory tests are done on the same sample to confirm what the unknown substance actually is.
  • 1.8K
  • 25 Oct 2022
Topic Review
Domesticated Plants and Animals of Austronesia
One of the major human migration events was the maritime settlement of the islands of the Indo-Pacific by the Austronesian peoples, believed to have started from at least 5,500 to 4,000 BP (3500 to 2000 BC). These migrations were accompanied by a set of domesticated, semi-domesticated, and commensal plants and animals transported via outrigger ships and catamarans that enabled early Austronesians to thrive in the islands of Maritime Southeast Asia (also known as 'Island Southeast Asia'), Near Oceania (Melanesia), Remote Oceania (Micronesia and Polynesia), Madagascar , and the Comoros Islands. They include crops and animals believed to have originated from the Hemudu and Majiabang cultures in the hypothetical pre-Austronesian homelands in mainland China , as well as other plants and animals believed to have been first domesticated from within Taiwan, Maritime Southeast Asia, and New Guinea. Some of these plants are sometimes also known as "canoe plants", especially in the context of the Polynesian migrations. Domesticated animals and plants introduced during historic times are not included.
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  • 25 Oct 2022
Topic Review
Interfaith Marriage
Interfaith marriage, sometimes called a "mixed marriage", is marriage between spouses professing different religions. Although interfaith marriages are most often contracted as civil marriages, in some instances they may be contracted as a religious marriage. This depends on religious doctrine of the two party's religions; some of which prohibit interfaith marriage, but others allow it in limited circumstances. Several major religions are mute on the issue, and still others allow it with requirements for ceremony and custom. For ethno-religious groups, resistance to interfaith marriage may be a form of self-segregation. In an interfaith marriage, each partner typically adheres to their own religion, but an important point is in what faith the children will be raised.
  • 13.2K
  • 25 Oct 2022
Topic Review
Structure of Temperament Questionnaire
Structure of Temperament Questionnaire (STQ) is a test to measure 12 biologically and neurochemically based individual differences.
  • 4.6K
  • 25 Oct 2022
Topic Review
Airsacculitis
Airsacculitis, also known as air sacculitis, aerosacculitis, air sac disease, air sac infection, air sac syndrome and simply sac disease, is a common inflammatory condition of air sacs that occurs in birds and is caused by various microbial (mostly bacterial) taxa. Having multiple different causative agents, the condition is widely distributed around the world. Since the disease is highly infectious it is especially dangerous for domesticated birds (poultry) bred on big farms. Occurrence of airsacculitis in big flocks can mean high economic loss, as infected poultry needs to be carefully observed, with all of the infected tissue disposed of and not used for human food. In severe cases of the disease whole infected bird carcasses need to be disposed. Usually the disease affects younger birds, aged between 6 and 12 weeks. The most characteristic sign of airsacculitis is an inflamed mucous membrane of bird air sacs, which swells and becomes red, with infected birds exhibiting different symptoms, such as coughing, lethargy, swelling of the neck, difficult breathing, appetite and weight loss etc. The same term is used for bacterial infection and subsequent inflammation of laryngeal air sacs in non-human primates.
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  • 25 Oct 2022
Topic Review
Solar Symbol
A solar symbol is a symbol representing the Sun. Common solar symbols include circles (with or without rays), crosses, and spirals. In religious iconography, personifications of the Sun or solar attributes are often indicated by means of a halo or a radiate crown. When the systematic study of comparative mythology first became popular in the 19th century, scholarly opinion tended to over-interpret historical myths and iconography in terms of "solar symbolism". This was especially the case with Max Müller and his followers beginning in the 1860s in the context of Indo-European studies. Many "solar symbols" claimed in the 19th century, such as the swastika, triskele, Sun cross, etc. have tended to be interpreted more conservatively in scholarship since the later 20th century.
  • 14.2K
  • 25 Oct 2022
Topic Review
Cortes of Cádiz
The Cortes of Cádiz was a revival of the traditional cortes (Spanish parliament), which as an institution had not functioned for many years, but it met as a single body, rather than divided into estates as with previous ones. The General and Extraordinary Cortes that met in the port of Cádiz starting 24 September 1810 "claimed legitimacy as the sole representative of Spanish sovereignty", following the French invasion and occupation of Spain during the Napoleonic Wars and the abdication of the monarch Ferdinand VII and his father Charles IV. It met as one body, and its members represented the entire Spanish Empire, that is, not only Spain but also Spanish America and the Philippines. The Cortes of Cádiz was seen then, and by historians today, as a major step towards liberalism and democracy in the history of Spain and Spanish America. The liberal Cortes drafted and ratified the Spanish Constitution of 1812, which established a constitutional monarchy and eliminated many institutions that privileged some groups over others.
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  • 25 Oct 2022
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