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Bioarchaeology
The term bioarchaeology has been attributed to British archaeologist Grahame Clark who, in 1972, defined it as the study of animal and human bones from archaeological sites. Redefined in 1977 by Jane Buikstra, bioarchaeology in the United States now refers to the scientific study of human remains from archaeological sites, a discipline known in other countries as osteoarchaeology, osteology or palaeo-osteology. Compared to bioarchaeology, osteoarchaeology is the scientific study that solely focus on the human skeleton. The human skeleton is used to tell us about health, lifestyle, diet, mortality and physique of the past. Furthermore, palaeo-osteology is simple the study of ancient bones. In contrast, the term bioarchaeology is used in Europe to describe the study of all biological remains from archaeological sites. Although Clark used it to describe just human remains and animal remains (zoology/archaeozoology), increasingly modern archaeologists also include botanical remains (bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jane Buikstra
Jane Ellen Buikstra (born 1945) is an American anthropologist and bioarchaeologist. Her 1977 article on the biological dimensions of archaeology coined and defined the field of bioarchaeology in the US as the application of biological anthropological methods to the study of archaeological problems. Throughout her career, she has authored over 20 books and 150 articles. Buikstra's current research focuses on an analysis of the Phalerum, Phaleron cemetery near Athens, Greece. Biography Buikstra obtained a bachelor's degree in Anthropology from DePauw University, Indiana in 1967 and her Masters and PhD degrees, also in Anthropology, from the University of Chicago. She is a Diplomate of the American Board of Forensic Anthropology and sat on the Board of Directors for the year 1999–2000. She has served as faculty at Northwestern University, University of Chicago, and the University of New Mexico. Buikstra was previously ''Leslie Spier Distinguished Professor of Anthropology'' at t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enthesis
The enthesis (plural entheses) is the connective tissue between tendon or ligament and bone. There are two types of entheses: ''Fibrous entheses'' and ''fibrocartilaginous entheses''. In a fibrous enthesis, the collagenous tendon or ligament directly attaches to the bone. In a fibrocartilaginous enthesis, the interface presents a gradient that crosses four transition zones: # Tendinous area displaying longitudinally oriented fibroblasts and a parallel arrangement of collagen fibres # Fibrocartilaginous region of variable thickness where the structure of the cells changes to chondrocytes # Abrupt transition from cartilaginous to calcified fibrocartilage—often called 'tidemark' or 'blue line' # Bone Clinical significance A disease of the entheses is known as an '' enthesopathy'' or '' enthesitis''. Enthetic degeneration is characteristic of spondyloarthropathy and other pathologies. The enthesis is the primary site of disease in ankylosing spondylitis. Society and cultu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grahame Clark
Sir John Grahame Douglas Clark (28 July 1907 – 12 September 1995), who often published as J. G. D. Clark, was a British archaeologist who specialised in the study of Mesolithic Europe and palaeoeconomics. He spent most of his career working at the University of Cambridge, where he was appointed Disney Professor of Archaeology from 1952 to 1974 and Master of Peterhouse from 1973 to 1980. Born in Kent to an upper-middle-class family, Clark developed an early interest in archaeology through his collection of prehistoric flint tools. After an education at Marlborough College, he proceeded to Peterhouse in the University of Cambridge, there attaining both his undergraduate and then doctoral degree. For the latter, he produced a thesis and published monograph focusing on Mesolithic Britain. In 1932 he co-founded the Fenland Research Committee, through which he excavated several prehistoric sites in the East Anglian Fens. He was also a senior member of the Prehistoric Society of Eas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
African Burial Ground National Monument
African Burial Ground National Monument is a monument at Duane Street and African Burial Ground Way (Elk Street) in the Civic Center section of Lower Manhattan, New York City. Its main building is the Ted Weiss Federal Building at 290 Broadway. The site contains the remains of more than 419 Africans buried during the late 17th and 18th centuries in a portion of what was the largest colonial-era cemetery for people of African descent, some free, most enslaved. Historians estimate there may have been as many as 10,000–20,000 burials in what was called the Negroes Burial Ground in the 18th century. The five to six acre site's excavation and study was called "the most important historic urban archaeological project in the United States." The Burial Ground site is New York's earliest known African-American cemetery; studies show an estimated 15,000 African American people were buried here. The discovery highlighted the forgotten history of enslaved Africans in colonial and fede ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surfer's Ear
Surfer's ear is the common name for an exostosis or abnormal bone growth within the ear canal. Surfer's ear is not the same as swimmer's ear, although infection can result as a side effect. Irritation from cold wind and water exposure causes the bone surrounding the ear canal to develop lumps of new bony growth which constrict the ear canal. Where the ear canal is actually blocked by this condition, water and wax can become trapped and give rise to infection. The condition is so named due to its prevalence among cold water surfers. Warm water surfers are also at risk for exostosis due to the evaporative cooling caused by wind and the presence of water in the ear canal. Most avid surfers have at least some mild bone growths (exostoses), causing little to no problems. The condition is progressive, making it important to take preventive measures early, preferably whenever surfing. The condition is not limited to surfing and can occur in any activity with cold, wet, windy conditio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wolff's Law
Wolff's law, developed by the German anatomist and surgeon Julius Wolff (1836–1902) in the 19th century, states that bone in a healthy animal will adapt to the loads under which it is placed. If loading on a particular bone increases, the bone will remodel itself over time to become stronger to resist that sort of loading. The internal architecture of the trabeculae undergoes adaptive changes, followed by secondary changes to the external cortical portion of the bone, perhaps becoming thicker as a result. The inverse is true as well: if the loading on a bone decreases, the bone will become less dense and weaker due to the lack of the stimulus required for continued remodeling.Wolff J. "The Law of Bone Remodeling". Berlin Heidelberg New York: Springer, 1986 (translation of the German 1892 edition) This reduction in bone density (osteopenia) is known as stress shielding and can occur as a result of a hip replacement (or other prosthesis). The normal stress on a bone is shielded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gender
Gender is the range of characteristics pertaining to femininity and masculinity and differentiating between them. Depending on the context, this may include sex-based social structures (i.e. gender roles) and gender identity. Most cultures use a gender binary, in which gender is divided into two categories, and people are considered part of one or the other ( boys/men and girls/ women);Kevin L. Nadal, ''The SAGE Encyclopedia of Psychology and Gender'' (2017, ), page 401: "Most cultures currently construct their societies based on the understanding of gender binary—the two gender categorizations (male and female). Such societies divide their population based on biological sex assigned to individuals at birth to begin the process of gender socialization." those who are outside these groups may fall under the umbrella term ''non-binary''. Some societies have specific genders besides "man" and "woman", such as the hijras of South Asia; these are often referred to as '' third g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Household Archaeology
Household archaeology has a long history of anthropological inquiry. Archaeological investigations of the household serve as a microcosm for the greater social universe. The household serves as a space for socialization processes. Household archaeology focuses on the household as a social unit, and involves research on the household's dwelling and other related architecture, material culture, features, and larger sociopolitical organizations that are associated with a specific culture. Household social relationships have been associated as serving as an "atom" for society.Yanagiasako, Sylvia (1979), Family and Household: The Analysis of Domestic Groups. ''Annual Review of Anthropology'', 8: pp. 161-205, Annual Reviews. Therefore, household studied effectively convey information pertaining to flexible economic and ecological conditions Household activity encompasses spheres of activity related to function and how people act. Household archaeology redefines the notion of the household ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cortisol
Cortisol is a steroid hormone, in the glucocorticoid class of hormones. When used as a medication, it is known as hydrocortisone. It is produced in many animals, mainly by the '' zona fasciculata'' of the adrenal cortex in the adrenal gland. It is produced in other tissues in lower quantities. It is released with a diurnal cycle and its release is increased in response to stress and low blood-glucose concentration. It functions to increase blood sugar through gluconeogenesis, to suppress the immune system, and to aid in the metabolism of fat, protein, and carbohydrates. It also decreases bone formation. Many of these functions are carried out by cortisol binding to glucocorticoid or mineralocorticoid receptors inside the cell, which then bind to DNA to impact gene expression. Health effects Metabolic response Metabolism of glucose In general, cortisol stimulates gluconeogenesis (the synthesis of 'new' glucose from non-carbohydrate sources, which occurs mainly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiograph
Radiography is an imaging technique using X-rays, gamma rays, or similar ionizing radiation and non-ionizing radiation to view the internal form of an object. Applications of radiography include medical radiography ("diagnostic" and "therapeutic") and industrial radiography. Similar techniques are used in airport security (where "body scanners" generally use backscatter X-ray). To create an image in conventional radiography, a beam of X-rays is produced by an X-ray generator and is projected toward the object. A certain amount of the X-rays or other radiation is absorbed by the object, dependent on the object's density and structural composition. The X-rays that pass through the object are captured behind the object by a detector (either photographic film or a digital detector). The generation of flat two dimensional images by this technique is called projectional radiography. In computed tomography (CT scanning) an X-ray source and its associated detectors rotate around the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harris Lines
Growth arrest lines, also known as Harris lines, are lines of increased bone density that represent the position of the growth plate at the time of insult to the organism and formed on long bones due to growth arrest. They are only visible by radiograph or in cross-section. The age at which the lines were formed can be estimated from a radiograph. Harris lines are often discussed as a result of juvenile malnutrition, disease or trauma. Other studies suggest a reconsideration of Harris lines as more of a result of normal growth and growth spurts, rather than a pure outcome of nutritional or pathologic stress. The term is named after Henry Albert Harris, 1886-1968, professor for anatomy at the University of Cambridge , mottoeng = Literal: From here, light and sacred draughts. Non literal: From this place, we gain enlightenment and precious knowledge. , established = , other_name = The Chancellor, Masters and Schola .... References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbit (anatomy)
In anatomy, the orbit is the cavity or socket of the skull in which the eye and its appendages are situated. "Orbit" can refer to the bony socket, or it can also be used to imply the contents. In the adult human, the volume of the orbit is , of which the eye occupies . The orbital contents comprise the eye, the orbital and retrobulbar fascia, extraocular muscles, cranial nerves II, III, IV, V, and VI, blood vessels, fat, the lacrimal gland with its sac and duct, the eyelids, medial and lateral palpebral ligaments, cheek ligaments, the suspensory ligament, septum, ciliary ganglion and short ciliary nerves. Structure The orbits are conical or four-sided pyramidal cavities, which open into the midline of the face and point back into the head. Each consists of a base, an apex and four walls."eye, human."Encyclopædia Britannica from Encyclopædia Britannica 2006 Ultimate Reference Suite DVD 2009 Openings There are two important foramina, or windows, two important ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
