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Guns, Germs, And Steel
''Guns, Germs, and Steel: The Fates of Human Societies'' (subtitled ''A Short History of Everybody for the Last 13,000 Years'' in Britain) is a 1997 transdisciplinary non-fiction book by Jared Diamond. In 1998, it won the Pulitzer Prize for general nonfiction and the Aventis Prize for Best Science Book. A documentary based on the book, and produced by the National Geographic Society, was broadcast on PBS in July 2005. The book attempts to explain why Eurasian and North African civilizations have survived and conquered others, while arguing against the idea that Eurasian hegemony is due to any form of Eurasian intellectual, moral, or inherent genetic superiority. Diamond argues that the gaps in power and technology between human societies originate primarily in environmental differences, which are amplified by various positive feedback loops. When cultural or genetic differences have favored Eurasians (for example, written language or the development among Eurasians of resista ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Everett Millais
Sir John Everett Millais, 1st Baronet, ( , ; 8 June 1829 – 13 August 1896) was an English painter and illustrator who was one of the founders of the Pre-Raphaelite Brotherhood. He was a child prodigy who, aged eleven, became the youngest student to enter the Royal Academy Schools. The Pre-Raphaelite Brotherhood was founded at his family home in London, at 83 Gower Street (now number 7). Millais became the most famous exponent of the style, his painting ''Christ in the House of His Parents'' (1849–50) generating considerable controversy, and he produced a picture that could serve as the embodiment of the historical and naturalist focus of the group, ''Ophelia'', in 1851–52. By the mid-1850s, Millais was moving away from the Pre-Raphaelite style to develop a new form of realism in his art. His later works were enormously successful, making Millais one of the wealthiest artists of his day, but some former admirers including William Morris saw this as a sell-out (Millais ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Geographic Society
The National Geographic Society (NGS), headquartered in Washington, D.C., United States, is one of the largest non-profit scientific and educational organizations in the world. Founded in 1888, its interests include geography, archaeology, and natural science, the promotion of environmental and historical conservation, and the study of world culture and history. The National Geographic Society's logo is a yellow portrait frame—rectangular in shape—which appears on the margins surrounding the front covers of its magazines and as its television channel logo. Through National Geographic Partners (a joint venture with The Walt Disney Company), the Society operates the magazine, TV channels, a website, worldwide events, and other media operations. Overview The National Geographic Society was founded on 13 January 1888 "to increase and diffuse geographic knowledge". It is governed by a board of trustees whose 33 members include distinguished educators, business executives, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yali (politician)
Yali (1912 – 26 September 1975) was a Papua New Guinean coastwatcher, local government councillor, police officer, political activist, prisoner, and soldier. Yali was born near Sor village in the Madang District in then-German New Guinea and died in the same place, by the end of his life in the independent country of Papua New Guinea. Early life After 1945, the Australian Administration of Papua New Guinea (PNG) realised that it had to combat the antagonism of the native people towards the colonial power and Europeans in general. To this end, it promoted native leaders who would explain to their people the advantages of working with the Administration. The most prominent of these became Yali, of the Rai Coast, "born in the Ngaing bush area of Sor, a member of the Walaliang patriclan and the Tabinung matriclan, about 1912". Yali's father had been an important community leader, but he himself was not trained in the traditional skills of his forefathers and left home at a young ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genome
In the fields of molecular biology and genetics, a genome is all the genetic information of an organism. It consists of nucleotide sequences of DNA (or RNA in RNA viruses). The nuclear genome includes protein-coding genes and non-coding genes, other functional regions of the genome such as regulatory sequences (see non-coding DNA), and often a substantial fraction of 'junk' DNA with no evident function. Almost all eukaryotes have mitochondria and a small mitochondrial genome. Algae and plants also contain chloroplasts with a chloroplast genome. The study of the genome is called genomics. The genomes of many organisms have been sequenced and various regions have been annotated. The International Human Genome Project reported the sequence of the genome for ''Homo sapiens'' in 200The Human Genome Project although the initial "finished" sequence was missing 8% of the genome consisting mostly of repetitive sequences. With advancements in technology that could handle sequenci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Disease
In epidemiology, an infection is said to be endemic in a specific population or populated place when that infection is constantly maintained at a baseline level without extra infections being brought into the group as a result of travel or similar means. An endemic disease always has a steady, predictable number of people getting sick, but that number can be high (''hyperendemic'') or low (''hypoendemic''), and the disease can be severe or mild. Also, a disease that is usually endemic can become epidemic. For example, chickenpox is endemic (steady state) in the United Kingdom, but malaria is not. Every year, there are a few cases of malaria reported in the UK, but these do not lead to sustained transmission in the population due to the lack of a suitable vector (mosquitoes of the genus ''Anopheles''). Consequently, the number of people infected by malaria is too variable to be called endemic. However, the number of people who get chickenpox in the UK varies little from year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Written Language
A written language is the representation of a spoken or gestural language by means of a writing system. Written language is an invention in that it must be taught to children, who will pick up spoken language or sign language by exposure even if they are not formally instructed. Written languages can be formed by an alphabet, or using other writing systems to give words and graphical counterpart. History The first writing can be dated back to the Neolithic era, with clay tablets being used to keep track of livestock and commodities. However, the first example of written language can be dated to Uruk, at the end of the 4th millennium BCE. An ancient Mesopotamian poem tells a tale about the invention of writing."Because the messenger's mouth was heavy and he couldn't repeat, the Lord of Kulaba patted some clay and put words on it, like a tablet. Until then, there had been no putting words on clay." —''Enmerkar and the Lord of Aratta,'' circa 1800 BCE.Scholars mark the differe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Positive Feedback
Positive feedback (exacerbating feedback, self-reinforcing feedback) is a process that occurs in a feedback loop which exacerbates the effects of a small disturbance. That is, the effects of a perturbation on a system include an increase in the magnitude of the perturbation. That is, ''A produces more of B which in turn produces more of A''.Keesing, R.M. (1981). Cultural anthropology: A contemporary perspective (2nd ed.) p.149. Sydney: Holt, Rinehard & Winston, Inc. In contrast, a system in which the results of a change act to reduce or counteract it has negative feedback. Both concepts play an important role in science and engineering, including biology, chemistry, and cybernetics. Mathematically, positive feedback is defined as a positive loop gain around a closed loop of cause and effect. That is, positive feedback is Phase (waves), in phase with the input, in the sense that it adds to make the input larger. Positive feedback tends to cause Control theory#Stability, system i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Race And Intelligence
Discussions of race and intelligence – specifically, claims of differences in intelligence along racial lines – have appeared in both popular science and academic research since the modern concept of Race (human categorization), race was first introduced. With the inception of intelligence quotient, IQ testing in the early 20th century, differences in average test performance between racial groups were observed, though these differences have fluctuated and in many cases steadily decreased over time. Further complicating the issue, modern science has shown race to be a Social constructionism, social construct rather than a biological reality, and intelligence has no undisputed definition. The validity of IQ testing as a metric for human intelligence is itself disputed. Today, the scientific consensus is that genetics does not explain differences in IQ test performance between groups, and that observed differences are environmental in origin. Pseudoscientific claims of inheren ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heritability
Heritability is a statistic used in the fields of breeding and genetics that estimates the degree of ''variation'' in a phenotypic trait in a population that is due to genetic variation between individuals in that population. The concept of heritability can be expressed in the form of the following question: "What is the proportion of the variation in a given trait within a population that is ''not'' explained by the environment or random chance?" Other causes of measured variation in a trait are characterized as environmental factors, including observational error. In human studies of heritability these are often apportioned into factors from "shared environment" and "non-shared environment" based on whether they tend to result in persons brought up in the same household being more or less similar to persons who were not. Heritability is estimated by comparing individual phenotypic variation among related individuals in a population, by examining the association between ind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morality
Morality () is the differentiation of intentions, decisions and actions between those that are distinguished as proper (right) and those that are improper (wrong). Morality can be a body of standards or principles derived from a code of conduct from a particular philosophy, religion or culture, or it can derive from a standard that a person believes should be universal. Morality may also be specifically synonymous with "goodness" or "rightness". Moral philosophy includes meta-ethics, which studies abstract issues such as moral ontology and moral epistemology, and normative ethics, which studies more concrete systems of moral decision-making such as deontological ethics and consequentialism. An example of normative ethical philosophy is the Golden Rule, which states: "One should treat others as one would like others to treat oneself." Immorality is the active opposition to morality (i.e. opposition to that which is good or right), while amorality is variously defined as an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heritability Of IQ
Research on the heritability of IQ inquires into the degree of variation in IQ within a population that is due to genetic variation Genetic variation is the difference in DNA among individuals or the differences between populations. The multiple sources of genetic variation include mutation and genetic recombination. Mutations are the ultimate sources of genetic variation, ... between individuals in that population. There has been significant controversy in the academic community about the heritability of IQ since research on the issue began in the late nineteenth century. Intelligence in the normal range is a Quantitative trait locus#Quantitative traits, polygenic trait, meaning that it is influenced by more than one gene, and in the case of intelligence at least 500 genes. Further, explaining the similarity in IQ of closely related persons requires careful study because environmental factors may be correlated with genetic factors. Early Twin study, twin studies of adult indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hegemony
Hegemony (, , ) is the political, economic, and military predominance of one State (polity), state over other states. In Ancient Greece (8th BC – AD 6th ), hegemony denoted the politico-military dominance of the ''hegemon'' city-state over other city-states. In the 19th century, ''hegemony'' denoted the "social or cultural predominance or ascendancy; predominance by one group within a society or milieu" and "a group or regime which exerts undue influence within a society". In cultural imperialism, the leader state dictates the internal politics and the Society, societal character of the subordinate states that constitute the hegemonic sphere of influence, either by an internal, sponsored government or by an external, installed government. The term ''hegemonism'' denoted the geopolitical and the cultural predominance of one country over other countries, e.g. the hegemony of the Great power, Great Powers established with European colonialism in Africa, Asia, and Latin America. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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