Electromyography of back muscles during quadrupedal and bipedal walking in primates.

abstract：:Various workers, including T. D. Stewart, claim that the aboriginal Americas were relatively disease-free because of the bering Strait cold-screen, eliminating many pathogens, and the paucity of zoonotic infections because of few domestic animals. Evidence of varying validity suggests that precontact Americns had thei...

journal_title：American journal of physical anthropology

authors： Newman MT

更新日期：1976-11-01 00:00:00

abstract：:The relationship between psychological stress and reduced fecundity has been a matter of speculation and investigation for decades. Most previous studies have been compromised, however, by a number of problems including ambiguous direction of causation, poorly operationalized variables, and the confounding of psycholo...

journal_title：American journal of physical anthropology

authors： Ellison PT,Lipson SF,Jasienska G,Ellison PL

更新日期：2007-12-01 00:00:00

abstract：:Two hundred black and white adult human skeletons and 200 living black and white children from the greater Cleveland area were examined for evidence of enamel hypoplasia. Enamel hypoplasia, present in varying expressings (pits, lines and grooves), was found to be more prevalent in both skeletal samples, than in the li...

journal_title：American journal of physical anthropology

authors： El-Najjar MY,DeSanti MV,Ozebek L

更新日期：1978-02-01 00:00:00

abstract：:The objective of this study is to present the characteristics of a collection of identified infants and young children housed in the Laboratory of Anthropology of the University of Granada, Spain. The sample, which is still being enlarged, is currently composed of 230 complete skeletons aged from 5 months of gestation...

journal_title：American journal of physical anthropology

authors： Alemán I,Irurita J,Valencia AR,Martínez A,López-Lázaro S,Viciano J,Botella MC

更新日期：2012-12-01 00:00:00

abstract：:The purpose of this paper is to document and interpret urban-rural differences in mortality in the past. To this end, we used data on mortality in Wielkopolska, Poland, in the 19th century and at the beginning of the 20th century. The data on mortality in rural areas (N = 1,173,910 deceased), small towns (N = 573,903 ...

journal_title：American journal of physical anthropology

authors： Budnik A,Liczbińska G

更新日期：2006-02-01 00:00:00

abstract：:This study examines quantification techniques applicable to human skeletal remains, and in particular the Lincoln index (LI), the minimum number of individuals (MNI), and what we refer to as the most likely number of individuals (MLNI), which is a modification of the LI by Chapman ([1951] Univ. Calif. Publ. Stat. 1:13...

journal_title：American journal of physical anthropology

authors： Adams BJ,Konigsberg LW

更新日期：2004-10-01 00:00:00

abstract：:Genealogical and gene marker data from the closely related species Macaca mulatta and Macaca fascicularis have been used to search for linkage between genes coding for the blood proteins albumin, carbonic anhydrase 1 and 2, diaphorase 1 and 2, group-specific component, glucose phosphate isomerase, hemoglobin alpha cha...

journal_title：American journal of physical anthropology

authors： Ferrell RE,Majumder PP,Smith DG

更新日期：1985-11-01 00:00:00

abstract：OBJECTIVES:This paper addresses the prevalence and pattern of physical violence in the prehispanic society of Gran Canaria and discusses its link with the social structure and insular context in which that people lived. MATERIALS AND METHODS:347 prehispanic crania from Guayadeque Ravine (575-1415 AD) have been examine...

journal_title：American journal of physical anthropology

authors： Delgado-Darias T,Alberto-Barroso V,Velasco-Vázquez J

更新日期：2018-05-01 00:00:00

abstract：:The growth of the maxillary complex of 36 rhesus monkeys (Macaca mulatta) was analyzed quantitatively and qualitatively during four defined stages of postnatal development (i.e., infant, juvenile, adolescent, young adult). At each stage, growth was observed during a 24 week period. Since some animals were observed dur...

journal_title：American journal of physical anthropology

authors： McNamara JA Jr,Riolo ML,Enlow DH

更新日期：1976-01-01 00:00:00

abstract：:A method of drawing outlines of the distal end of the humerus is presented and carried out on some pongids (Pan troglodytes, Pan paniscus, Pongo pygmaeus), on modern man, and on some casts of Plio-Pleistocene hominids. It appears that these outlines are good indicators of the overall morphology and permit the distingu...

journal_title：American journal of physical anthropology

authors： Senut B

更新日期：1981-11-01 00:00:00

abstract：OBJECTIVES:We present a new distance-based exponential regression approach based on published histological data to refine the objectivity, accuracy, and precision of age estimates of LEH defect formation on the anterior dentition. METHODS:Published histological data of anterior tooth crown growth for two samples (nort...

journal_title：American journal of physical anthropology

authors： Cares Henriquez A,Oxenham MF

更新日期：2019-03-01 00:00:00

abstract：:The Maresh reference data on stature and long bone lengths in a sample of healthy middle-class children from Denver, Colorado [Maresh: Am J Dis Child 66 (1943) 227-257; Maresh: Am J Dis Child 89 (1955) 725-742; Maresh: Human growth and development (1970) p 155-200], have been used extensively by biological anthropolog...

journal_title：American journal of physical anthropology

authors： Schillaci MA,Sachdev HP,Bhargava SK

更新日期：2012-03-01 00:00:00

abstract：:In this paper we discuss diet and health changes of millet agriculturists in Northern China, Shaanxi province, during the period 7,000-4,000 BP. An episode of intensive climatic oscillations that preceded the onset of colder climate circa the fifth millennium BP divides the period (Shi et al. [1993] Global Planet. Cha...

journal_title：American journal of physical anthropology

authors： Pechenkina EA,Benfer RA Jr,Zhijun W

更新日期：2002-01-01 00:00:00

abstract：:Patterns of degenerative joint disease are investigated in the shoulder, elbow, hip, and knee joints of the macerated remains of approximately 800 individuals from 20th century American and two prehistoric populations. Age is an important contributory factor in all joints, but its effects are seen most directly in the...

journal_title：American journal of physical anthropology

authors： Jurmain RD

更新日期：1980-07-01 00:00:00

abstract：:A recently proposed model for canine reduction in hominid evolution (the "dual selection" model) suggests that canine reduction occurs as a result of selection for incorporation of the canines into a functional incisal field. Among the evidence used to support this model are patterns of wear and occlusion of the canin...

journal_title：American journal of physical anthropology

authors： Plavcan JM,Kelley J

更新日期：1996-03-01 00:00:00

abstract：:Enamel hypoplasias, deficiencies in enamel thickness resulting from disturbances during the secretory phase of enamel development, are generally believed to result from nonspecific metabolic and nutritional disruptions. However, data are scare on the prevalence and chronological distributions. of hypoplasias in popula...

journal_title：American journal of physical anthropology

authors： Goodman AH,Allen LH,Hernandez GP,Amador A,Arriola LV,Chávez A,Pelto GH

更新日期：1987-01-01 00:00:00

abstract：:Artificial reshaping of the cranial vault has been practiced by many human groups and provides a natural experiment in which the relationships of neurocranial, cranial base, and facial growth can be investigated. We test the hypothesis that fronto-occipital artificial reshaping of the neurocranial vault results in spe...

journal_title：American journal of physical anthropology

authors： Cheverud JM,Kohn LA,Konigsberg LW,Leigh SR

更新日期：1992-07-01 00:00:00

abstract：:Bilateral correlations are higher and bilateral variances within individuals smaller in the samples of inbred individuals than in matched control groups of the same sex for pattern intensities on fingers in four series of data and also for pattern intensities on palms, toes, and soles and the palmer main line indices ...

journal_title：American journal of physical anthropology

authors： Mukherjee A

更新日期：1990-01-01 00:00:00

abstract：:The scarcity of information on control data of toe and plantar dermatoglyphics led us to undertake this study of adult American Caucasians. Toe and sole prints of 168 male and 83 female participants of the Baltimore Longitudinal Study of Aging were analyzed. Toe pattern frequencies demonstrate that fibular loops are t...

journal_title：American journal of physical anthropology

authors： Fox KM,Plato CC

更新日期：1987-09-01 00:00:00

abstract：:The amount of disparity between the lengths of the radii and ulnae of 177 Negro female skeletons of the Terry Collection was questioned. An error was found and corrections have been made in the relevant statistics and tables. ...

journal_title：American journal of physical anthropology

authors： Trotter M,Gleser GC

更新日期：1977-09-01 00:00:00

abstract：:It is unclear whether earlier age at menarche is associated with higher body mass index (BMI) because they share a common genetic underpinning. We investigated the impact of single nucleotide polymorphisms (SNPs) influencing menarche timing on peripubertal BMI. For 556 Fels Longitudinal Study children (277 boys/279 gi...

journal_title：American journal of physical anthropology

authors： Johnson W,Choh AC,Curran JE,Czerwinski SA,Bellis C,Dyer TD,Blangero J,Towne B,Demerath EW

更新日期：2013-01-01 00:00:00

abstract：:Previous research has revealed extensive genetic variation among villages on Bougainville, in the Solomon Islands. Using previously published gene frequency data for seven loci, the role of isolation by distance in structuring genetic variation on Bougainville was reanalyzed. Newer methods of kinship estimation show t...

journal_title：American journal of physical anthropology

authors： Relethford JH

更新日期：1985-03-01 00:00:00

abstract：:Scratches found on the Engis 2 cranium have been described as perimortem and interpreted as intentional scalping marks by Russell and LeMort (Am. J. Phys. Anthropol. 69:317-323, 1986). These marks are described and compared to damage on other fossil hominids. The Engis marks have been misinterpreted. These marks are s...

journal_title：American journal of physical anthropology

authors： White TD,Toth N

更新日期：1989-03-01 00:00:00

abstract：OBJECTIVES:Neandertal femora are particularly known for having a marked sagittal femoral curvature. This study examined femoral curvature in Neandertals in comparison to a modern human population from Belgium by the use of three-dimensional (3D) quadric surfaces modeled from the bone surface. 3D models provide detailed...

journal_title：American journal of physical anthropology

authors： Chapman T,Sholukha V,Semal P,Louryan S,Van Sint Jan S

更新日期：2018-01-01 00:00:00

abstract：OBJECTIVES:First ribs bear information about thorax morphology and are usually well preserved, compared to other ribs, in bone/fossil samples. Several studies have addressed ontogeny of the first rib by studying changes in bone microanatomy and rib morphology separately, but no studies have combined both approaches to ...

journal_title：American journal of physical anthropology

authors： García-Martínez D,Gil OG,Cambra-Moo O,Canillas M,Rodríguez MA,Bastir M,Martín AG

更新日期：2017-12-01 00:00:00

abstract：:New insights may be gleaned by taking an ontogenetic approach to investigations of adult dimorphism. Previous work in this area relied on traditional, caliper-based, morphometric methods, and produced conflicting results. This study uses a three-dimensional (3-D) approach for both local and global form comparisons of ...

journal_title：American journal of physical anthropology

authors： Hens SM

更新日期：2003-05-01 00:00:00

abstract：:During excavations of the Bronze Age levels at El Mirador Cave, a hole containing human remains was found. Taphonomic analysis revealed the existence of cutmarks, human toothmarks, cooking damage, and deliberate breakage in most of the remains recovered, suggesting a clear case of gastronomic cannibalism. The piled di...

journal_title：American journal of physical anthropology

authors： Cáceres I,Lozano M,Saladié P

更新日期：2007-07-01 00:00:00

abstract：:The approximal surfaces of premolars and molars of 376 adult British-Romano skulls were examined for wear facets. The type of wear was designated as convex, concave, sigmoid, or flat, and the degree was categorised on a three-point scale. Concave wear facets were more frequently seen in the older age groups, but the t...

journal_title：American journal of physical anthropology

authors： Whittaker DK,Ryan S,Weeks K,Murphy WM

更新日期：1987-07-01 00:00:00

abstract：:This cross-sectional study investigates metabolic bone disease and the relationship between age and bone mineral density (BMD) in males and females of a large, well-documented skeletal population of free-ranging rhesus monkeys (Macaca mulatta), from the Caribbean Primate Research Center Museum collection from Cayo San...

journal_title：American journal of physical anthropology

authors： Cerroni AM,Tomlinson GA,Turnquist JE,Grynpas MD

更新日期：2000-11-01 00:00:00

abstract：:The Hadar site in Ethiopia is a prolific source of hominid fossils attributed to the species Australopithecus afarensis, which spans the period 3.4-3.0 million years (myr) in the Sidi Hakoma, Denen Dora and lower Kada Hadar Members of the Hadar Formation. Since 1992 a major focus of field work conducted at Hadar has c...

journal_title：American journal of physical anthropology

authors： Kimbel WH,Johanson DC,Rak Y

更新日期：1997-06-01 00:00:00