Observations of physical abnormalities among the wild bonobos (Pan paniscus) of Wamba, Zaire.

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：:The control region of mitochondrial DNA has been widely studied in various human populations. This paper reports sequence data for hypervariable segments 1 and 2 of the control region from a population from southern Tuscany (Italy). The results confirm the high variability of the control region, with 43 different hapl...

journal_title：American journal of physical anthropology

authors： Francalacci P,Bertranpetit J,Calafell F,Underhill PA

更新日期：1996-08-01 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：OBJECTIVES:Stable isotope data provide insight into the reconstruction of ancient human diet. However, cooking may alter the original stable isotope compositions of food due to losses and modifications of biochemical and water components. METHODS:To address this issue, carbon, nitrogen and oxygen isotope ratios were m...

journal_title：American journal of physical anthropology

authors： Royer A,Daux V,Fourel F,Lécuyer C

更新日期：2017-08-01 00:00:00

abstract：:We documented the spacing and distribution of perikymata on the buccal enamel surface of fossil hominin anterior teeth with reference to a sample of modern human and modern great ape teeth. A sample of 27 anterior teeth attributed to Australopithecus (5 to A. afarensis, 22 to A. africanus) and of 33 attributed to Para...

journal_title：American journal of physical anthropology

authors： Dean MC,Reid DJ

更新日期：2001-11-01 00:00:00

abstract：:The purpose of this brief communication is to report the results of an analysis of maxillary premolar accessory ridges (MxPAR), a common but understudied accessory ridge that may occur both mesial and distal to the central ridge of the buccal cusp of upper premolars. We developed a new five-grade scoring plaque to bet...

journal_title：American journal of physical anthropology

authors： Burnett SE,Hawkey DE,Turner CG 2nd

更新日期：2010-02-01 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：: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：:Bone mass, as assessed by measurements of total subperiosteal diameter and medullary width of the second metacarpal bone on hand-wrist radiographs, was evaluated for 31 Guamanian patients (15 males, 16 females) with amyotrophic lateral sclerosis (ALS), 67 patients (39 males, 28 females) with parkinsonism-dementia (PD)...

journal_title：American journal of physical anthropology

authors： Garruto RM,Plato CC,Yanagihara R,Fox K,Dutt J,Gajdusek DC,Tobin J

更新日期：1989-09-01 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：:In this paper we examine the effects of ethnicity on the gene flow between two groups living in Limón, Costa Rica. Our main interest is to determine if ethnicity has acted as a barrier to the exchange of genes, and if the groups have remained distinct genetically. We report the admixture estimates, F(st) values, and i...

journal_title：American journal of physical anthropology

authors： Madrigal L,Ware B,Miller R,Saenz G,Chavez M,Dykes D

更新日期：2001-02-01 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：: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：OBJECTIVES:The present study aimed at investigating the timing of birth across the day in a rural population of indigenous and nonindigenous women in the province of Formosa, Argentina in order to explore the variation in patterns in a non-Western setting. MATERIALS AND METHODS:This study utilized birth record data tr...

journal_title：American journal of physical anthropology

authors： Chaney C,Goetz LG,Valeggia C

更新日期：2018-08-01 00:00:00

abstract：:Principal components analysis was used to quantify the variability in crown outlines of maxillary molars in Australian Aboriginals. The outlines were measured by 36 radii from the central pit to the crown periphery. The first component, responsible for over half of the total variance, was concerned with general crown ...

journal_title：American journal of physical anthropology

authors： Yamada H,Brown T

更新日期：1990-07-01 00:00:00

abstract：:Periodic episodes of food scarcity may highlight the adaptive value of certain anatomical traits, particularly those that facilitate the acquisition and digestion of exigent fallback foods. To better understand the selective pressures that favored the distinctive dental and locomotor morphologies of gibbons and orangu...

journal_title：American journal of physical anthropology

authors： Vogel ER,Haag L,Mitra-Setia T,van Schaik CP,Dominy NJ

更新日期：2009-12-01 00:00:00

abstract：:Distribution and variation statistics of hominid endocranial volume (ECV) have been investigated. Within the interpretative constraints imposed by (very) small sample sizes, the requirements for normality are met, as are those for heteroscedasticity. A significant difference in means can be demonstrated for only two c...

journal_title：American journal of physical anthropology

authors： Blumenberg B

更新日期：1985-10-01 00:00:00

abstract：:This study examines the appearance of the secondary ossification centers in the lower arms, wrists, lower legs, and ankles of a cross-sectional sample of 20 infant orangutans and chimpanzees (15 of known age). The number of tarsal and carpal centers is analyzed relative to the degree of M1 development and the weight o...

journal_title：American journal of physical anthropology

authors： Winkler LA

更新日期：1996-01-01 00:00:00

abstract：:The Ainu people are considered to be the descendants of preagricultural native populations of northern Japan, while the majority of the population of contemporary Japan (Wajin) is descended mainly from postneolithic migrants. Polymorphisms of the HLA-DRB1, DRB3, and DQB1 alleles were investigated in DNA samples of 50 ...

journal_title：American journal of physical anthropology

authors： Bannai M,Tokunaga K,Imanishi T,Harihara S,Fujisawa K,Juji T,Omoto K

更新日期：1996-09-01 00:00:00

abstract：:The fingers in the adult human hand differ in length and in distal extent. The literature agrees that in the clear majority of males, the distal extent of the ring finger tends to be relatively greater (using the middle finger as standard) than the index finger. However, the results for females vary considerably, with...

journal_title：American journal of physical anthropology

authors： Peters M,Mackenzie K,Bryden P

更新日期：2002-03-01 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：:Gorillas occupy a variety of habitats from the west coast to eastern central Africa. These habitats differ considerably in altitude, which has a pronounced effect on forest ecology. Although all gorillas are obligate terrestrial knuckle-walking quadrupeds, those that live in lowland habitats eat fruits and climb more ...

journal_title：American journal of physical anthropology

authors： Dunn RH,Tocheri MW,Orr CM,Jungers WL

更新日期：2014-04-01 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：:Proportions of marine vs. terrestrial resources in prehistoric human diets in the southern Mariana Islands (Guam, Rota, Saipan), Micronesia, have been estimated by analysis of stable isotope ratios of carbon and nitrogen in bone collagen and of carbon in apatite. The isotopic composition of marine and terrestrial food...

journal_title：American journal of physical anthropology

authors： Ambrose SH,Butler BM,Hanson DB,Hunter-Anderson RL,Krueger HW

更新日期：1997-11-01 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：:In this study, dominance rank instability among male Lemur catta during mating was investigated. Also, data on agonism and sexual behavior across five consecutive mating seasons in a population of L. catta on St. Catherines Island, USA, were collected. Instances of male rank instability were categorized into three typ...

journal_title：American journal of physical anthropology

authors： Parga JA

更新日期：2009-03-01 00:00:00

abstract：:This paper examines humeral cross-sectional properties in two different samples of later medieval date: a group of blade-injured males from the sites of Towton, North Yorkshire, and Fishergate in the City of York, England, and a comparative group of nonblade-injured males also from the site of Fishergate in York. CT i...

journal_title：American journal of physical anthropology

authors： Rhodes JA,Knüsel CJ

更新日期：2005-11-01 00:00:00

abstract：:A variety of geometric morphometric methods have recently been used to describe dental shape variation in human evolutionary studies. However, the applicability of these methods is limited when teeth are worn or are difficult to orient accurately. Here we show that elliptical best fits on outlines of dental tissues be...

journal_title：American journal of physical anthropology

authors： Bauer CC,Bons PD,Benazzi S,Harvati K

更新日期：2016-02-01 00:00:00

abstract：:Despite the relatively large size of anthropoid incisors in relation to the remainder of the dental arcade, and their prominent role in the preprocessing of food prior to ingestion, comparatively little is known about the functional morphology of anthropoid incisor shape and crown curvature. The relationship between i...

journal_title：American journal of physical anthropology

authors： Deane A

更新日期：2012-06-01 00:00:00

abstract：:Callitrichids use their tongue in various social, ecological, and hygienic contexts. Using a noninvasive measuring device, we obtained data on the operational tongue length (OTL) in seven species from the family Callitrichidae. OTL (defined as the maximum tongue extension into the device) varied significantly between ...

journal_title：American journal of physical anthropology

authors： Heymann EW,von der Lage F

更新日期：2009-07-01 00:00:00