Bipedality in chimpanzee (Pan troglodytes) and bonobo (Pan paniscus): testing hypotheses on the evolution of bipedalism.

abstract：:International differences in breast cancer incidence and mortality, and studies on Japanese migrants to the United States, point to the importance of environmental factors, including diet and nutrition, in the etiology of breast cancer. Some studies have suggested that dietary patterns in early life are important to t...

journal_title：American journal of physical anthropology

authors： Micozzi MS

更新日期：1987-08-01 00:00:00

abstract：:In order to reassess previous hypotheses concerning dental size reduction of the posterior teeth during Pleistocene human evolution, current fossil dental evidence is examined. This evidence includes the large sample of hominid teeth found in recent excavations (1984-1993) in the Sima de los Huesos Middle Pleistocene ...

journal_title：American journal of physical anthropology

authors： Bermúdez de Castro JM,Nicolas ME

更新日期：1995-04-01 00:00:00

abstract：:This study investigates evidence of changes and continuities in ancient Maya violence and warfare in inland northwest Yucatan, Mexico from the Middle Preclassic (600-300 BC) to the Postclassic (AD 1050-1542) through bioarchaeological analysis of cranial and projectile trauma. It is hypothesized that the frequency of v...

journal_title：American journal of physical anthropology

authors： Serafin S,Lope CP,Uc González E

更新日期：2014-05-01 00:00:00

abstract：:Mesiodistal and buccolingual crown diameters were measured from dental casts representing the deciduous dentitions of 197 Aboriginal children from the Northern Territory of Australia. Double determination analysis indicated that the semi-automatic recording procedure used was reliable leading to observer errors of no ...

journal_title：American journal of physical anthropology

authors： Margetts B,Brown T

更新日期：1978-05-01 00:00:00

abstract：OBJECTIVES:Investigations of the human femoral bicondylar angle have largely focused on interspecific differences and intrapopulation variation. This analysis assesses the range of variation in the bicondylar angle in humans across four populations, examining the effects of population, sex and age. MATERIALS AND METHO...

journal_title：American journal of physical anthropology

authors： Waxenbaum EB,Stock MK

更新日期：2016-06-01 00:00:00

abstract：:Skin coloration in indigenous peoples is strongly related to levels of ultraviolet radiation (UVR). In this study, the relationships of skin reflectance to seasonal UVR levels and other environmental variables were investigated, with the aim of determining which variables contributed most significantly to skin reflect...

journal_title：American journal of physical anthropology

authors： Chaplin G

更新日期：2004-11-01 00:00:00

abstract：:Oxygen stable isotope ratios (delta(18)O) have been determined in carbonate in paired first and third molar teeth from individuals (N = 61) who lived in the town of Portus Romae ("Portus") and who were buried in the necropolis of Isola Sacra (First to Third centuries AD) near Rome, Italy. We compare these analyses wit...

journal_title：American journal of physical anthropology

authors： Prowse TL,Schwarcz HP,Garnsey P,Knyf M,Macchiarelli R,Bondioli L

更新日期：2007-04-01 00:00:00

abstract：OBJECTIVES:The Taung hominin fossil was recovered in 1924 during quarry operations in the tufa formations of the Buxton Limeworks. Reconstructions of the depositional environment of the juvenile Australopithecus skull have concentrated on the types of caves that form within the tufa. Hopley et al. (Am J Phys Anthropol ...

journal_title：American journal of physical anthropology

authors： McKee JK

更新日期：2016-02-01 00:00:00

abstract：:Sibling correlations for size attained in height, weight, sitting height, estimated leg length, the triceps skinfold, arm circumference, and estimated midarm muscle circumference were compared in 6- through 13-year-old schoolchildren grouped by household socioeconomic status. The children were residents of a Zapotec-s...

journal_title：American journal of physical anthropology

authors： Little BB,Malina RM,Buschang PH,DeMoss JH,Little LR

更新日期：1986-09-01 00:00:00

abstract：:Mobility and migration patterns of groups and individuals have long been a topic of interest to archaeologists, used for broad explanatory models of cultural change as well as illustrations of historical particularism. The 14th century AD was a tumultuous period of history in Britain, with severely erratic weather pat...

journal_title：American journal of physical anthropology

authors： Kendall EJ,Montgomery J,Evans JA,Stantis C,Mueller V

更新日期：2013-02-01 00:00:00

abstract：:Excessive central fat in children and adolescents is a risk factor for cardiovascular and metabolic disorders. This study aimed to compare the body fat distribution patterns of children and adolescents in Abeokuta, Nigeria with international reference standards. Five hundred seventy children aged 5 to 19 years were se...

journal_title：American journal of physical anthropology

authors： Senbanjo IO,Oshikoya KA,Olutekunbi OA,Njokanma OF

更新日期：2013-04-01 00:00:00

abstract：:Trace elements in the dental enamel of 43 prehistoric Indians from Illinois, Maryland and Virginia show concentration differences by age, sex and geographical locality. Sample areas on an incisor or first molar were blocked off with paraffin, washed twice with distilled water and etched 7 times with 6N HCl. An optical...

journal_title：American journal of physical anthropology

authors： LES Hoyme,Koritzer RT

更新日期：1976-11-01 00:00:00

abstract：:The energy demands of pregnancy and lactation together with the accumulation of stored fat in human females during development suggest that a critical level of fat may be required for menarche; but multivariate analyses have supported the alternative view that skeletal growth is the main factor. However, significant d...

journal_title：American journal of physical anthropology

authors： Lassek WD,Gaulin SJ

更新日期：2007-08-01 00:00:00

abstract：:Anthropologists were quick to recognize the potential of new techniques in molecular biology to provide additional lines of evidence on questions long investigated in anthropology, as well as those questions that, while always of interest, could not have been addressed by more traditional techniques. The earliest anci...

journal_title：American journal of physical anthropology

authors： Kaestle FA,Horsburgh KA

更新日期：2002-01-01 00:00:00

abstract：:The distribution of red cell phosphoglucomutase (PGM) subtypes was determined by starch-gel electrophoresis and isoelectric focusing in a group of 2,484 unrelated individuals from ten Mongoloid populations of East Asia. The sample comprised 998 Chinese from various localities--Singapore, 325; Malaysia, 270; Taiwan, 27...

journal_title：American journal of physical anthropology

authors： Saha N

更新日期：1988-09-01 00:00:00

abstract：:Archaeological and ethnohistorical documents suggest that the Chachapoya region was inhabited by a number of distinct sociopolitical groups that only united in the face of their common enemy, the Inka. The purpose of this research is to quantify the amount of internal genetic differentiation and levels of extraregiona...

journal_title：American journal of physical anthropology

authors： Nystrom KC

更新日期：2006-11-01 00:00:00

abstract：:Neo-darwinian and population genetics theory assumes that the necessary and sufficient set of conditions for all genetic, therefore evolutionary, change has been identified. Punctuationalists have assumed the opposite and cite the fossil record as evidence for change too rapid to be explained in neo-darwinian theory. ...

journal_title：American journal of physical anthropology

authors： Williams BJ

更新日期：1987-05-01 00:00:00

abstract：:The study of tooth wear among prehistoric and recent populations has frequently been concerned with the rate and pattern of wear over the dental arches. In this report we considered the question of tooth wear variation among collections of Australian Aboriginal crania recovered from several sites along the Murray Rive...

journal_title：American journal of physical anthropology

authors： Molnar S,Richards L,McKee J,Molnar I

更新日期：1989-06-01 00:00:00

abstract：:The goal of this research is to evaluate the relative strength of the influences of diet, size, and phylogenetic signal on dental geometric shape. Accurate comprehension of these factors and their interaction is important for reconstructing diet and deriving characters for a cladistic analysis in fossil primates. Geom...

journal_title：American journal of physical anthropology

authors： St Clair EM,Boyer DM

更新日期：2016-10-01 00:00:00

abstract：:It has been suggested that primates utilize a compliant gait to help reduce peak locomotor stresses on their limbs (Schmitt [1994] J. Hum. Evol. 26:441-458; Schmitt [ 1998] Primate Locomotion, p. 175-200; Schmitt [ 1999] J. Zool. Lond. 248:149-160). However, the components of such a gait, i.e., increased step length, ...

journal_title：American journal of physical anthropology

authors： Larney E,Larson SG

更新日期：2004-09-01 00:00:00

abstract：:An inexpensive anthropometer, suitable for use in undergraduate projects, was constructed from aluminum rod and components designed from laboratory retort stands. Only modest workshop skills and widely available machine tools were required to produce the device, which could be used to take accurate and reproducible me...

journal_title：American journal of physical anthropology

authors： Clarke GS

更新日期：1996-08-01 00:00:00

abstract：:Isotope variations were studied in necropolises of the early (6th to 7th century CE) and central (10th to 11th century CE) medieval period located in Fruili-Venezia Giulia (Northeastern Italy). The two periods each shortly followed two great barbarian invasions that changed the politics and economy of Italy: the arriv...

journal_title：American journal of physical anthropology

authors： Iacumin P,Galli E,Cavalli F,Cecere L

更新日期：2014-08-01 00:00:00

abstract：:Despite the extensive electromyographic research that has addressed limb muscle function during primate quadrupedalism, the role of the back muscles in this locomotor behavior has remained undocumented. We report here the results of an electromyographic (EMG) analysis of three intrinsic back muscles (multifidus, longi...

journal_title：American journal of physical anthropology

authors： Shapiro LJ,Jungers WL

更新日期：1994-04-01 00:00:00

abstract：:Leprosy was a well-recognized and dreaded disease in medieval Europe (5th-15th century AD). It is reported to have reached Germany with the Roman invasion. A much larger fraction than previously assumed appears to have been affected by leprosy in the medieval period. This article estimates the frequency (i.e., the pre...

journal_title：American journal of physical anthropology

authors： Boldsen JL

更新日期：2008-03-01 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 rate of decrease of mean metacarpal cortical width was assessed by sequential radiographic morphometry for each hand separately in a series of 46 right-handed postmenopausal women observed for 222 patient-years. For the left hand, the mean rate was 0.0331 +/- 0.0053 mm/year and for the right, 0.0310 +/- 0.0060 mm/...

journal_title：American journal of physical anthropology

authors： Horsman A,Simpson M,Armes F

更新日期：1981-04-01 00:00:00

abstract：:Several studies have suggested that incisor microwear reflects diet and feeding adaptations of anthropoids. However, such studies have been largely qualitative, and interpretations have relied on anecdotal references to diet and tooth use reported in the socioecology literature. The current study relates incisor micro...

journal_title：American journal of physical anthropology

authors： Ungar PS

更新日期：1994-07-01 00:00:00

abstract：:Cross-sectional geometrical (CSG) properties of an Iron Age Samnite group from the Alfedena necropolis (Abruzzo, Italy, 2600-2400 B.P.) are compared with a Ligurian Neolithic sample (6000-5500 B.P.). In the period under examination, Samnites were organized in a tribal confederation led by patrilinear aristocracies, in...

journal_title：American journal of physical anthropology

authors： Sparacello VS,Pearson OM,Coppa A,Marchi D

更新日期：2011-01-01 00:00:00

abstract：:Recent research findings have highlighted the importance of early life conditions as risk factors for adult diseases and therefore determinants of subsequent survival. Given that individuals born during different seasons in seasonal environments experience different early-developmental conditions, an analysis of the e...

journal_title：American journal of physical anthropology

authors： Muñoz-Tudurí M,García-Moro C

更新日期：2008-04-01 00:00:00

abstract：:The robustness index (RI) is determined by multiplying dental mesiodistal and buccolingual diameters, and is used to estimate occlusal area. However, because teeth are not rectangular its calculation consistently causes overestimations. Moreover, teeth, in particular molars, are not identically shaped so overestimatio...

journal_title：American journal of physical anthropology

authors： Schmidt C,Ousley S,Schmidt M

更新日期：2011-06-01 00:00:00