Brief communication: Population variation in human maxillary premolar accessory ridges (MxPAR).

abstract：:It is now known that several population movements have taken place at different times throughout southern Arabian prehistory. One of the principal questions under debate is if the Early Holocene peopling of southern Arabia was mainly due to input from the Levant during the Pre-Pottery Neolithic B, to the expansion of ...

journal_title：American journal of physical anthropology

authors： Al-Abri A,Podgorná E,Rose JI,Pereira L,Mulligan CJ,Silva NM,Bayoumi R,Soares P,Cerný V

更新日期：2012-10-01 00:00:00

abstract：:The new optical device Lipometer allows noninvasive, quick, and safe determination of the thickness of subcutaneous adipose tissue (SAT) layers (in mm) at any site of the human body. The specification of 15 evenly distributed body sites enables the precise measurement of subcutaneous body fat distribution, so-called s...

journal_title：American journal of physical anthropology

authors： Tafeit E,Möller R,Sudi K,Horejsi R,Berg A,Reibnegger G

更新日期：2001-05-01 00:00:00

abstract：:Frost (1987a) proposed an algorithm for estimating the number of missing osteons that correspond to observed osteon population densities (OPD). Such an algorithm should allow more accurate estimates of bone remodeling rates for skeletal remains for which in vivo labeling is not possible. In order to validate the algor...

journal_title：American journal of physical anthropology

authors： Stout SD,Paine RR

更新日期：1994-01-01 00:00:00

abstract：:The use of tooth cementum annulations for age determination has been deemed promising, exhibiting high correlations with chronological age. Despite its apparent potential, to date, the tooth cementum annulations method has been used rarely for estimating ages in archaeological populations. Here we examine the readabil...

journal_title：American journal of physical anthropology

authors： Roksandic M,Vlak D,Schillaci MA,Voicu D

更新日期：2009-11-01 00:00:00

abstract：:Effects of consanguineous marriages on offspring's gestational age and anthropometrics at birth were investigated in Beirut through a hospital-based survey of 1,252 newborns. Twenty-five percent of all newborns were inbred, and the mean inbreeding coefficient was 1.25%. Neither prematurity rate nor weight, length, hea...

journal_title：American journal of physical anthropology

authors： Khlat M

更新日期：1989-12-01 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：:Historically, medical concerns about the deleterious effects of closely inbred marriages have focused on the risk posed by recessive Mendelian disease, with much less attention to developmental instability. We studied the effects of inbreeding (first-cousin marriage) on growth and fluctuating asymmetry of 200 full-ter...

journal_title：American journal of physical anthropology

authors： Ozener B,Graham JH

更新日期：2014-01-01 00:00:00

abstract：:The production of structured and repetitive sounds by striking objects is a behavior found not only in humans, but also in a variety of animal species, including chimpanzees (Pan troglodytes). In this study we examined individual and social factors that may influence the frequency with which individuals engage in drum...

journal_title：American journal of physical anthropology

authors： Babiszewska M,Schel AM,Wilke C,Slocombe KE

更新日期：2015-01-01 00:00:00

abstract：:Humans are limited in their capacity to convert protein into energy. We present a hypothesis that a "bell" shaped thorax and a wide pelvis evolved in Neandertals, at least in part, as an adaptation to a high protein diet. A high protein diet created a need to house an enlarged liver and urinary system in a wider lower...

journal_title：American journal of physical anthropology

authors： Ben-Dor M,Gopher A,Barkai R

更新日期：2016-07-01 00:00:00

abstract：OBJECTIVES:Although the evolution of the hominin masticatory apparatus has been linked to diet and food processing, the physical connection between neurocranium and lower jaw suggests a role of encephalization in the trend of dental and mandibular reduction. Here, the hypothesis that tooth size and mandibular robustici...

journal_title：American journal of physical anthropology

authors： Veneziano A,Meloro C,Irish JD,Stringer C,Profico A,De Groote I

更新日期：2018-09-01 00:00:00

abstract：:Dramatic changes in cranial capacity have characterized human evolution. Important evolutionary hypotheses, such as the spatial packing hypothesis, assert that increases in relative brain size (encephalization) have caused alterations to the modern human skull, resulting in a suite of traits unique among extant primat...

journal_title：American journal of physical anthropology

authors： Lesciotto KM,Richtsmeier JT

更新日期：2019-01-01 00:00:00

abstract：:The use of teeth as tools provides clues to past subsistence patterns and cultural practices. Five Holocene period hunter-fisher-gatherer mortuary sites from the south-western region of Lake Baikal, Siberia, Russian Federation, are observed for activity-induced dental modification (AIDM) to further characterize their ...

journal_title：American journal of physical anthropology

authors： Waters-Rist A,Bazaliiskii VI,Weber A,Goriunova OI,Katzenberg MA

更新日期：2010-10-01 00:00:00

abstract：:On the basis of new examination of ancient DNA and craniometric analyses, Neolithic dispersal in Central Europe has been recently explained as reflecting colonization or at least a major influx of near eastern farmers. Given the fact that Neolithic dispersal in Central Europe was very rapid and extended into a large a...

journal_title：American journal of physical anthropology

authors： Galeta P,Sládek V,Sosna D,Bruzek J

更新日期：2011-09-01 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：:Within- and between-species variation in restriction endonuclease recognition sites was examined at the Y-linked RPS4Y locus of six hominoid species: human (Homo sapiens), gorilla (Gorilla gorilla), chimpanzee (Pan troglodytes), bonobo (Pan paniscus), orangutan (Pongo pygmaeus), and gibbon (Hylobates lar). RPS4Y is an...

journal_title：American journal of physical anthropology

authors： Samollow PB,Cherry LM,Witte SM,Rogers J

更新日期：1996-11-01 00:00:00

abstract：OBJECTIVES:Many studies on subadult sex estimation focus on elements that express sexually dimorphic features in adults. In contrast, diaphyseal dimensions have been shown to display sex-specific differences prior to adolescence. The current study evaluates the use of diaphyseal dimensions in subadult sex estimation. ...

journal_title：American journal of physical anthropology

authors： Stull KE,L'Abbé EN,Ousley SD

更新日期：2017-05-01 00:00:00

abstract：:The adventus Saxonum is a crucial event in English protohistory. Scholars from a range of disciplines dispute the scale and demographic profile of the purported colonizing population. The 5th-7th century burial ground at West Heslerton, North Yorkshire, is one of the few Anglian cemeteries where an associated settleme...

journal_title：American journal of physical anthropology

authors： Montgomery J,Evans JA,Powlesland D,Roberts CA

更新日期：2005-02-01 00:00:00

abstract：:Gene and haplotype frequencies for HLA-A and HLA-B antigens were determined in Milwaukee blood donors of German and Polish descent. Gene frequencies for A25 and B18 were significantly higher in Poles than in Germans. Significant gametic associations were noted for A1-B8, A29-B12 and AW30-B13 in both populations. Gamet...

journal_title：American journal of physical anthropology

authors： Stevenson JC,Duquesnoy RJ

更新日期：1978-01-01 00:00:00

abstract：:The order in which ectocranial sutures undergo fusion displays species-specific variation among primates. However, the precise relationship between suture closure and phylogenetic affinities is poorly understood. In this study, we used Guttman Scaling to determine if the modal progression of suture closure differs amo...

journal_title：American journal of physical anthropology

authors： Cray J Jr,Meindl RS,Sherwood CC,Lovejoy CO

更新日期：2008-08-01 00:00:00

abstract：:Craniofacial variables for modern and prehistoric Japanese were subjected to multivariate analysis to test the relationships of the people of Japan with mainland Asian and Oceanic samples. The modern Japanese are tied to Koreans, Chinese, Southeast Asians, and the Yayoi rice agriculturalists who entered Japan in 300 B...

journal_title：American journal of physical anthropology

authors： Brace CL,Brace ML,Leonard WR

更新日期：1989-01-01 00:00:00

abstract：:Multivariate analyses, supplemented by univariate statistical methods, of measurements from mandibular tooth crown dimensions and the mandible of Gigantopithecus blacki, G. bilaspurensis, Plio-Plelstocene hominids, Homo erectus, and seven Neogene ape species from the genera Proconsul, Sivapithecus, Ouranopithecus, and...

journal_title：American journal of physical anthropology

authors： Gelvin BR

更新日期：1980-11-01 00:00:00

abstract：:Weight, stature, arm circumference, and the triceps skinfold were measured in 1,410 school children, 6 through 14 years of age, from two urban colonias in the city of Oaxaca de Juarez (n = 479), and from two rural Ladino (n = 467) and two rural Zapotec (n = 464) communities in the Valley of Oaxaca in southern Mexico. ...

journal_title：American journal of physical anthropology

authors： Malina RM,Himes JH,Stepick CD,Lopez FG,Buschang PH

更新日期：1981-03-01 00:00:00

abstract：:The limbic frontal cortex forms part of the neural substrate responsible for emotional reactions to social stimuli. Area 13 is one of the cortical areas long known to be part of the posterior orbitofrontal cortex in several monkey species, such as the macaque. Its presence nevertheless in the human brain has been uncl...

journal_title：American journal of physical anthropology

authors： Semendeferi K,Armstrong E,Schleicher A,Zilles K,Van Hoesen GW

更新日期：1998-06-01 00:00:00

abstract：:Life history theory posits that, as long as survival is assured, finite resources are available for reproduction, maintenance, and growth/storage. To maximize lifetime reproductive success, resources are subject to trade-offs both within individuals and between current and future investment. For women, reproducing is ...

journal_title：American journal of physical anthropology

authors： Abrams ET,Miller EM

更新日期：2011-01-01 00:00:00

abstract：:This study attempts to fill a persistent gap in the literature by documenting the timing of epiphyseal union at the vertebral end of the ribs in a sample of modern Portuguese skeletons. The skeletal remains of 53 females and 45 males, between the ages of 11 and 30, were taken from the Lisbon documented skeletal collec...

journal_title：American journal of physical anthropology

authors： Ríos L,Cardoso HF

更新日期：2009-10-01 00:00:00

abstract：:This article examines the influence of nutritional status on the emergence of deciduous dentition in a cross-sectional sample of 510 rural Rajput children from the Jubbal and Kotkhai Tehsils, Shimla District, Himachal Pradesh, India. The nutritional status of each child was evaluated using Z-scores of height/supine le...

journal_title：American journal of physical anthropology

authors： Gaur R,Kumar P

更新日期：2012-05-01 00:00:00

abstract：:The premise that bones grow and remodel throughout life to adapt to their mechanical environment is often called Wolff's law. Wolff's law, however, is not always true, and in fact comprises a variety of different processes that are best considered separately. Here we review the molecular and physiological mechanisms b...

journal_title：American journal of physical anthropology

authors： Pearson OM,Lieberman DE

更新日期：2004-01-01 00:00:00

abstract：:Members of the Cercocebus-Mandrillus clade are united by several morphological features, including expanded premolars which are argued to be associated with a preponderance of hard objects in the diet. We test the association between premolar expansion and hard object feeding by examining how different dental regions ...

journal_title：American journal of physical anthropology

authors： McGraw WS,Vick AE,Daegling DJ

更新日期：2011-01-01 00:00:00

abstract：:The genes for testis-specific protein Y (TSPY) were sequenced from chimpanzee (Pan troglodytes), gorilla (Gorilla gorilla), orangutan (Pongo pygmaeus), and baboon (Papio hamadryas). The sequences were compared with each other and with the published human sequence. Substitutions were detected at 144 of the 755 nucleoti...

journal_title：American journal of physical anthropology

authors： Kim HS,Takenaka O

更新日期：1996-07-01 00:00:00

abstract：:A large collection of identified human skeletons curated at the Bocage Museum (National Museum of Natural History, Lisbon, Portugal) has remained in relative anonymity since its collecting protocol was initiated in the 1980s. This collection originates from modern cemetery sources and is comprised of 1,692 skeletons w...

journal_title：American journal of physical anthropology

authors： Cardoso HF

更新日期：2006-02-01 00:00:00