Cross-sectional geometry of Pecos Pueblo femora and tibiae--a biomechanical investigation: I. Method and general patterns of variation.

abstract：:New data were obtained on mitochondrial DNA (mtDNA) from Guahibo from Venezuela, a group so far not studied using molecular data. A population sample (n = 59) was analyzed for mtDNA variation in two control-region hypervariable segments (HV1 and HV2) by sequencing. The presence or absence of a 9-bp polymorphism in the...

journal_title：American journal of physical anthropology

authors： Vona G,Falchi A,Moral P,Calò CM,Varesi L

更新日期：2005-07-01 00:00:00

abstract：:The prevailing research design for studying infant sleep erroneously assumes the species-wide normalcy of solitary nocturnal sleep rather than a social sleeping environment. In fact, current clinical perspectives on infant sleep, which are based exclusively on studies of solitary sleeping infants, may partly reflect c...

journal_title：American journal of physical anthropology

authors： McKenna JJ,Mosko S,Dungy C,McAninch J

更新日期：1990-11-01 00:00:00

abstract：:It has been argued that techniques for estimating adult age-at-death from cortical histology are deleteriously affected by sampling location. This study uses nine complete femoral midshaft cross-sections to test the effect of sampling site on measurement of a standard histological variable, percent remodeled bone. Cir...

journal_title：American journal of physical anthropology

authors： Pfeiffer S,Lazenby R,Chiang J

更新日期：1995-01-01 00:00:00

abstract：:A number of living primates feed part-year on seemingly hard food objects as a fallback. We ask here how hardness can be quantified and how this can help understand primate feeding ecology. We report a simple indentation methodology for quantifying hardness, elastic modulus, and toughness in the sense that materials s...

journal_title：American journal of physical anthropology

authors： Lucas PW,Constantino PJ,Chalk J,Ziscovici C,Wright BW,Fragaszy DM,Hill DA,Lee JJ,Chai H,Darvell BW,Lee PK,Yuen TD

更新日期：2009-12-01 00:00:00

abstract：:It has long been thought that the prefrontal cerebral cortex has been greatly expanded in the human brain. Semendeferi et al. ([2001] Am. J. Phys. Anthropol. 114:224-241) showed that Brodmann's area 10 is relatively larger in the human compared to pongid brains. The question is: how much larger relatively is it? Using...

journal_title：American journal of physical anthropology

authors： Holloway RL

更新日期：2002-08-01 00:00:00

abstract：:The relationship between ethnicity and biology is of interest to anthropologists, biomedical scientists, and historians in understanding how human groups are constructed. Ethnic self-identification in recently admixed groups such as Hispanics, African Americans, and Native Americans (NA) is likely to be complex due to...

journal_title：American journal of physical anthropology

authors： Klimentidis YC,Miller GF,Shriver MD

更新日期：2009-04-01 00:00:00

abstract：:Seasonal change in time spent for terrestrial behavior of chimpanzees was investigated from the viewpoint of the distribution of food and microclimate in the forest at Bossou, Guinea, West Africa. Daily and monthly data for activity budgets of three focal animals, climatic variables in the forest, and indices of fruit...

journal_title：American journal of physical anthropology

authors： Takemoto H

更新日期：2004-05-01 00:00:00

abstract：:The most common live-born human aneuploidy is trisomy 21, which causes Down syndrome (DS). Dosage imbalance of genes on chromosome 21 (Hsa21) affects complex gene-regulatory interactions and alters development to produce a wide range of phenotypes, including characteristic facial dysmorphology. Little is known about h...

journal_title：American journal of physical anthropology

authors： Starbuck JM,Cole TM 3rd,Reeves RH,Richtsmeier JT

更新日期：2013-05-01 00:00:00

abstract：:Stature and the pattern of body proportions were investigated in a series of six time-successive Egyptian populations in order to investigate the biological effects on human growth of the development and intensification of agriculture, and the formation of state-level social organization. Univariate analyses of varian...

journal_title：American journal of physical anthropology

authors： Zakrzewski SR

更新日期：2003-07-01 00:00:00

abstract：:The objective of this study was to identify the presence of degenerative spondylolisthesis in adult Native American skeletons recovered from prehistoric and historic Pueblo sites in New Mexico. The vertebral columns of 491 individuals that were complete enough to allow the necessary observations produced 64 cases, wit...

journal_title：American journal of physical anthropology

authors： Merbs CF

更新日期：2001-12-01 00:00:00

abstract：:Museum curators and living communities are sometimes reluctant to permit ancient DNA (aDNA) studies of human skeletal remains because the extraction of aDNA usually requires the destruction of at least some skeletal material. Whether these views stem from a desire to conserve precious materials or an objection to dest...

journal_title：American journal of physical anthropology

authors： Bolnick DA,Bonine HM,Mata-Míguez J,Kemp BM,Snow MH,LeBlanc SA

更新日期：2012-02-01 00:00:00

abstract：:Serum samples of 683 unrelated male and female individuals of four Sardinian population samples (Sassari, Nuoro, Oristano and Cagliari) were typed for G 1 m (1,2,3,17), G 3 m (5,6,10,11,13,14,15,16,21,26), and Km (1). Phenotype, haplotype (Gm), and allele frequencies (Km), respectively, show a remarkable variability b...

journal_title：American journal of physical anthropology

authors： Walter H,Matsumoto H,De Stefano GF

更新日期：1991-09-01 00:00:00

abstract：:This paper is one in a series which explores the possibility of using the non-destructive CT technique to identify patterns in tooth enamel distribution and structure of hominid molars from Plio-Pleistocene sites in South Africa, notably Swartkrans, Sterkfontein, and Kromdraai. Whereas previous investigators have emph...

journal_title：American journal of physical anthropology

authors： Macho GA,Thackeray JF

更新日期：1992-10-01 00:00:00

abstract：:Using observations on the presence or absence of terminal hair in 13 locations on 700 white adult males, descriptive statistics were tabulated, phi coefficients of intercorrelation were computed, principal axis factor loadings were extracted, and varimax rotation of factors to simple structure was performed. The resul...

journal_title：American journal of physical anthropology

authors： Barker DG

更新日期：1976-01-01 00:00:00

abstract：:The study of enamel thickness has received considerable attention in regard to the taxonomic, phylogenetic and dietary assessment of human and non-human primates. Recent developments based on two-dimensional (2D) and three-dimensional (3D) digital techniques have facilitated accurate analyses, preserving the original ...

journal_title：American journal of physical anthropology

authors： Benazzi S,Panetta D,Fornai C,Toussaint M,Gruppioni G,Hublin JJ

更新日期：2014-02-01 00:00:00

abstract：:The reproductive histories of women aged 45-70 years from a homogeneous Berber population of South Morocco were sampled from three contrasting environments: a small town (n = 75), villages in the lowlands (n = 217), and villages in the highlands (n = 128). The main reproductive variables oppose the relatively better c...

journal_title：American journal of physical anthropology

authors： Crognier E

更新日期：1996-06-01 00:00:00

abstract：:Variation in recent human mandibular form is often thought to reflect differences in masticatory behavior associated with variation in food preparation and subsistence strategies. Nevertheless, while mandibular variation in some human comparisons appear to reflect differences in functional loading, other comparisons i...

journal_title：American journal of physical anthropology

authors： Holton NE,Franciscus RG,Ravosa MJ,Southard TE

更新日期：2014-03-01 00:00:00

abstract：:The existence of an apomorphic reciprocal chromosomal translocation in the gorilla lineage has been asserted or denied by various cytogeneticists. We employed a new molecular cytogenetic strategy (chromosomal in situ suppression hybridization) combined with high-resolution banding, replication sequence analysis, and f...

journal_title：American journal of physical anthropology

authors： Stanyon R,Wienberg J,Romagno D,Bigoni F,Jauch A,Cremer T

更新日期：1992-06-01 00:00:00

abstract：:Twenty healthy men were asked to walk as straight as possible to a target 60 m away at normal speed. A series of footprints was recorded for each subject by having him wear socks soaked with red ink and walk on white paper fixed flat to the floor. Fourier analysis was applied to determine whether the subjects actually...

journal_title：American journal of physical anthropology

authors： Uetake T

更新日期：1992-09-01 00:00:00

abstract：:A virtually complete skeleton recovered from excavations in a Late Upper Paleolithic context by Cardini between 1940 and 1942 at the Arene Candide cave (NW Italy) lacks the normal development of the left and right lesser trochanters. The specimen is a short-statured male about 25 years old and shows no other especiall...

journal_title：American journal of physical anthropology

authors： Formicola V,Frayer DW,Heller JA

更新日期：1990-12-01 00:00:00

abstract：:The wild bonobos (Pan paniscus) of Wamba, Zaire have an extremely high frequency of external abnormal traits. Out of 96 animals in a sample comprising all age and sex classes from two different natural groups, 46 individuals had at least one limb defect. The frequency of abnormalities was greater in males than in fema...

journal_title：American journal of physical anthropology

authors： Kano T

更新日期：1984-01-01 00:00:00

abstract：:Appeals to synapomorphic features of the wrist and hand in African apes, early hominins, and modern humans as evidence of knuckle-walking ancestry for the hominin lineage rely on accurate interpretations of those features as adaptations to knuckle-walking locomotion. Because Gorilla, Pan, and Homo share a relatively c...

journal_title：American journal of physical anthropology

authors： Orr CM

更新日期：2005-11-01 00:00:00

abstract：:The Spearman-Brown Prophesy formula, derived from psychometrics, may be used in anthropometric studies to describe the relationship between the intraclass reliability coefficient for a single measurement and the reliability resulting from the mean of replicate measurements. This theory may be applied to determine expe...

journal_title：American journal of physical anthropology

authors： Himes JH

更新日期：1989-05-01 00:00:00

abstract：:The mean fat cell diameter was determined from measurements of abdominal adipose cells, obtained during inguinal hernia repair, of 126 white and 95 black males ranging in age from 1 through 48 months of age. The mean diameters of black and white subjects did not differ significantly, suggesting that differences in fat...

journal_title：American journal of physical anthropology

authors： Johnston FE,Weston M,McKinney S,Coleman J,Pereira G,Rounds J

更新日期：1984-12-01 00:00:00

abstract：:As evidence accumulates regarding the influence of hormones and stress-related conditions on maternal behavior, it becomes critical to better understand the relationship between physiological stress and the ability to cope with infants. Eight Japanese macaque females were observed 3 hr per week during the first 12 wee...

journal_title：American journal of physical anthropology

authors： Bardi M,Shimizu K,Barrett GM,Borgognini-Tarli SM,Huffman MA

更新日期：2003-03-01 00:00:00

abstract：OBJECTIVES:To determine whether (1) maximal handgrip strength (HGS) is associated with inter-island level of economic development in Vanuatu, (2) how associations between island of residence and HGS are mediated by age, sex, body size/composition, and individual sociodeomographic variation, and (3) whether HGS is predi...

journal_title：American journal of physical anthropology

authors： Olszowy KM,Little MA,Lee G,Pomer A,Dancause KN,Sun C,Silverman H,Chan CW,Tarivonda L,Kaneko A,Weitz C,Koji Lum J,Garruto RM

更新日期：2018-12-01 00:00:00

abstract：:A histological aging study of femoral midshafts in a late Roman period sample from the Dakhleh Oasis, Egypt, showed discrete fluorochrome labelling. The fluorochrome is yellow-green in colour and fluoresces at a wavelength of 525 nm. The labelling occurs at the mineralization fronts and is so distinct that several his...

journal_title：American journal of physical anthropology

authors： Cook M,Molto E,Anderson C

更新日期：1989-10-01 00:00:00

abstract：:Hominid fossil teeth are analyzed in terms of size and shape and contrasted with teeth from a modern population to determine boundaries that can be placed on a reconstruction of the hominid phylogeny. Teeth alone are considered as they are the only material preserved in large enough quantities to measure population va...

journal_title：American journal of physical anthropology

authors： Read DW

更新日期：1975-01-01 00:00:00

abstract：:Bone samples from a Middle Bronze Age (ca., 1600-1300 BC) site were prepared for histological analysis. Preliminary results suggested that components of bone marrow remained preserved. To verify these findings and optimize the sample preparation procedure, we conducted experiments varying the type of acid used to deca...

journal_title：American journal of physical anthropology

authors： Setzer TJ,Sundell IB,Dibbley SK,Les C

更新日期：2013-12-01 00:00:00

abstract：:In placental mammals, pregnancy usually is associated with an increase in maternal androgens, which may significantly impact fetal growth and differentiation, and affect postnatal development and behavior. Owing to their slow life histories and challenging social conditions, determination of maternal androgens and pot...

journal_title：American journal of physical anthropology

authors： Fürtbauer I,Heistermann M,Schülke O,Ostner J

更新日期：2012-02-01 00:00:00