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Boskop Man
The Boskop Man is an anatomically modern human fossil of the Middle Stone Age (Late Pleistocene) discovered in 1913 in South Africa. The fossil was at first described as ''Homo capensis'' and considered a separate human species by Broom (1918), but by the 1970s this "Boskopoid" type was widely recognized as representative of the modern Khoisan populations. Discovery Most theories regarding a "Boskopoid" type were based on the eponymous Boskop cranium, which was found in 1913 by two Afrikaner farmers. They offered it to Frederick William FitzSimons for examination and further research. Many similar skulls were subsequently discovered by paleontologists such as Robert Broom, William Pycraft and Raymond Dart. The original skull was incomplete consisting of frontal and parietal bones, with a partial occiput, one temporal and a fragment of mandible. Fossils of similar type are known from Tsitsikamma (1921), Matjes River (1934), Fish Hoek and Springbok Flats, Skhul, Qazeh, Border ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatomically Modern Human
Anatomy () is the branch of biology concerned with the study of the structure of organisms and their parts. Anatomy is a branch of natural science that deals with the structural organization of living things. It is an old science, having its beginnings in prehistoric times. Anatomy is inherently tied to developmental biology, embryology, comparative anatomy, evolutionary biology, and phylogeny, as these are the processes by which anatomy is generated, both over immediate and long-term timescales. Anatomy and physiology, which study the structure and function of organisms and their parts respectively, make a natural pair of related disciplines, and are often studied together. Human anatomy is one of the essential basic sciences that are applied in medicine. The discipline of anatomy is divided into macroscopic and microscopic. Macroscopic anatomy, or gross anatomy, is the examination of an animal's body parts using unaided eyesight. Gross anatomy also includes the branch o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Border Cave
Border Cave is a rock shelter on the western scarp of the Lebombo Mountains in KwaZulu-Natal near the border between South Africa and Eswatini. Border Cave has a remarkably continuous stratigraphic record of occupation spanning about 200 ka. Anatomically modern Homo sapiens skeletons together with stone tools and chipping debris were recovered. Dating by carbon-14, amino acid racemisation and electron spin resonance (ESR) places the oldest sedimentary ash at some 200 kiloannum. Excavations for guano in 1940 by a certain W. E. Barton of Eswatini, revealed a number of human bone fragments and were recognised as extremely old by Professor Raymond Dart, who had visited the site in July 1934, but had carried out only a superficial examination. In 1941 and 1942, a team sponsored by the University of the Witwatersrand carried out a more thorough survey. Subsequent excavations in the 1970s by Peter Beaumont were rewarded with rich yields. The site produced not only the complete ske ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homo Sapiens Fossils
''Homo'' () is the genus that emerged in the (otherwise extinct) genus ''Australopithecus'' that encompasses the extant species ''Homo sapiens'' (modern humans), plus several extinct species classified as either ancestral to or closely related to modern humans (depending on the species), most notably ''Homo erectus'' and ''Homo neanderthalensis''. The genus emerged with the appearance of ''Homo habilis'' just over 2 million years ago. ''Homo'', together with the genus ''Paranthropus'', is probably sister to ''Australopithecus africanus'', which itself had previously split from the lineage of '' Pan'', the chimpanzees. ''Homo erectus'' appeared about 2 million years ago and, in several early migrations, spread throughout Africa (where it is dubbed ''Homo ergaster'') and Eurasia. It was likely that the first human species lived in a hunter-gatherer society and was able to control fire. An adaptive and successful species, ''Homo erectus'' persisted for more than a million years ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wajak Man
The Wajak crania (also Wadjak, following the Dutch spelling of the toponym) are two fossil human skulls discovered near Wajak, a village in Tulungagung Regency, East Java, Indonesia (then Dutch East Indies) in 1888/90. The first was found on 24 October 1888 by mining engineer B.D. van Rietschoten who sent it to paleontologist Eugène Dubois who subsequently found the second skull in September 1890. When returning to the Netherlands in 1895, Dubois took the skulls with him. They are now located in Naturalis, Leyden. Dubbed Wajak Man, and formerly classified by Dubois as a separate species (''Homo wadjakensis''), the skulls are now recognized as an early anatomically modern human fossil. They were dated to the early-to-mid Holocene (12,000 to 5,000 years ago) in the 1990s, but a 2013 study revised the date to between 28,000 and 37,000 years ago. Their morphological characteristics have been described as showing affinity to both proto-Australoid (intermediate between Solo Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocephalus
Hydrocephalus is a condition in which an accumulation of cerebrospinal fluid (CSF) occurs within the brain. This typically causes increased pressure inside the skull. Older people may have headaches, double vision, poor balance, urinary incontinence, personality changes, or mental impairment. In babies, it may be seen as a rapid increase in head size. Other symptoms may include vomiting, sleepiness, seizures, and downward pointing of the eyes. Hydrocephalus can occur due to birth defects or be acquired later in life. Associated birth defects include neural tube defects and those that result in aqueductal stenosis. Other causes include meningitis, brain tumors, traumatic brain injury, intraventricular hemorrhage, and subarachnoid hemorrhage. The four types of hydrocephalus are communicating, noncommunicating, ''ex vacuo'', and normal pressure. Diagnosis is typically made by physical examination and medical imaging. Hydrocephalus is typically treated by the surg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dubious Boskopoid
Doubt is a mental state in which the mind remains suspended between two or more contradictory propositions, unable to be certain of any of them. Doubt on an emotional level is indecision between belief and disbelief. It may involve uncertainty, distrust or lack of conviction on certain facts, actions, motives, or decisions. Doubt can result in delaying or rejecting relevant action out of concern for mistakes or missed opportunities. Psychology Partial or intermittent negative reinforcement can create an effective climate of fear and doubt. Philosophy Descartes employed Cartesian doubt as a pre-eminent methodological tool in his fundamental philosophical investigations. Branches of philosophy like logic devote much effort to distinguish the dubious, the probable and the certain. Much of illogic rests on dubious assumptions, dubious data or dubious conclusions, with rhetoric, whitewashing, and deception playing their accustomed roles. Theology Doubt as a path towards (d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discover (magazine)
''Discover'' is an American general audience science magazine launched in October 1980 by Time Inc. It has been owned by Kalmbach Publishing since 2010. History Founding ''Discover'' was created primarily through the efforts of ''Time'' magazine editor Leon Jaroff. He noticed that magazine sales jumped every time the cover featured a science topic. Jaroff interpreted this as a considerable public interest in science, and in 1971, he began agitating for the creation of a science-oriented magazine. This was difficult, as a former colleague noted, because "Selling science to people who graduated to be managers was very difficult".Hevesi, Dennis"Leon Jaroff, Editor at Time and Discover Magazines, Dies at 85" ''The New York Times'', 21 October 2012 Jaroff's persistence finally paid off, and ''Discover'' magazine published its first edition in 1980. ''Discover'' was originally launched into a burgeoning market for science magazines aimed at educated non-professionals, intended t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John D
John is a common English name and surname: * John (given name) * John (surname) John may also refer to: New Testament Works * Gospel of John, a title often shortened to John * First Epistle of John, often shortened to 1 John * Second Epistle of John, often shortened to 2 John * Third Epistle of John, often shortened to 3 John People * John the Baptist (died c. AD 30), regarded as a prophet and the forerunner of Jesus Christ * John the Apostle (lived c. AD 30), one of the twelve apostles of Jesus * John the Evangelist, assigned author of the Fourth Gospel, once identified with the Apostle * John of Patmos, also known as John the Divine or John the Revelator, the author of the Book of Revelation, once identified with the Apostle * John the Presbyter, a figure either identified with or distinguished from the Apostle, the Evangelist and John of Patmos Other people with the given name Religious figures * John, father of Andrew the Apostle and Saint Peter * Po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Intelligence
The ''g'' factor (also known as general intelligence, general mental ability or general intelligence factor) is a construct developed in psychometric investigations of cognitive abilities and human intelligence. It is a variable that summarizes positive correlations among different cognitive tasks, reflecting the fact that an individual's performance on one type of cognitive task tends to be comparable to that person's performance on other kinds of cognitive tasks. The ''g'' factor typically accounts for 40 to 50 percent of the between-individual performance differences on a given cognitive test, and composite scores ("IQ scores") based on many tests are frequently regarded as estimates of individuals' standing on the ''g'' factor.Kamphaus et al. 2005 The terms '' IQ, general intelligence, general cognitive ability, general mental ability'', and simply ''intelligence'' are often used interchangeably to refer to this common core shared by cognitive tests.Deary et al. 2010 However, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gary Lynch (neuroscientist)
Gary Lynch is a neuroscientist at UC-Irvine. His lab studies memory. He received his PhD from Princeton University in 1968; his PhD advisor was Bryon Campbell. At UCI, his lab began research involving the role of long-term potentiation In neuroscience, long-term potentiation (LTP) is a persistent strengthening of synapses based on recent patterns of activity. These are patterns of synaptic activity that produce a long-lasting increase in signal transmission between two neurons ... in memory. His biography is profiled in the book 101 Theory Drive. References Year of birth missing (living people) Living people American neuroscientists University of California, Irvine faculty Place of birth missing (living people) {{US-biologist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cranial Capacity
The size of the brain is a frequent topic of study within the fields of anatomy, biological anthropology, animal science and evolution. Brain size is sometimes measured by weight and sometimes by volume (via MRI scans or by skull volume). Neuroimaging intelligence testing can be used to study the volumetric measurements of the brain. Regarding "intelligence testing", a question that has been frequently investigated is the relation of brain size to intelligence. This question is quite controversial and will be addressed further in the section on intelligence. The measure of brain size and cranial capacity is not just important to humans, but to all mammals. Humans In humans, the right cerebral hemisphere is typically larger than the left, whereas the cerebellar hemispheres are typically closer in size. The adult human brain weighs on average about . In men the average weight is about 1370 g and in women about 1200 g. The volume is around 1260 cm3 in men and 1130 &nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brno
Brno ( , ; german: Brünn ) is a city in the South Moravian Region of the Czech Republic. Located at the confluence of the Svitava and Svratka rivers, Brno has about 380,000 inhabitants, making it the second-largest city in the Czech Republic after the capital, Prague, and one of the 100 largest cities of the EU. The Brno metropolitan area has almost 700,000 inhabitants. Brno is the former capital city of Moravia and the political and cultural hub of the South Moravian Region. It is the centre of the Czech judiciary, with the seats of the Constitutional Court, the Supreme Court, the Supreme Administrative Court, and the Supreme Public Prosecutor's Office, and a number of state authorities, including the Ombudsman, and the Office for the Protection of Competition. Brno is also an important centre of higher education, with 33 faculties belonging to 13 institutes of higher education and about 89,000 students. Brno Exhibition Centre is among the largest exhibitio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
