Skill ontogeny among Tsimane forager-horticulturalists.

abstract：:Repetitive linear enamel hypoplasia (rLEH) is often observed in recent large-bodied apes from Africa and Asia as well as Mid- to Late Miocene sites from Spain to China. The ubiquity and periodicity of rLEH are not understood. Its potential as an ontogenetic marker of developmental stress in threatened species (as well...

journal_title：American journal of physical anthropology

authors： Skinner MF,Hopwood D

更新日期：2004-03-01 00:00:00

abstract：:This study analyzed skeletal health disparities among African American and Euro-American males of low socioeconomic status born between 1825 and 1877. A total of 651 skeletons from the Cobb, Hamann-Todd, and Terry anatomical collections were macroscopically examined for skeletal pathologies related to dietary deficien...

journal_title：American journal of physical anthropology

authors： de la Cova C

更新日期：2011-04-01 00:00:00

abstract：:The techniques of dental histology provide a method for reconstructing much of the life history of an individual, as accentuated increments visible in polarized light microscopy record incidents of physiological stress during the formation of dental tissues. Combined with counts of the normal periodic growth increment...

journal_title：American journal of physical anthropology

authors： Dirks W,Reid DJ,Jolly CJ,Phillips-Conroy JE,Brett FL

更新日期：2002-07-01 00:00:00

abstract：:Familial similarity of the dermatoglyphic trait values of finger ridge-count scores and pattern intensity index is examined for 125 nuclear families from the Velanadu Brahmin population of Southern India by the method of association arrays. This methodology assesses parent-offspring and sibship similarity through a co...

journal_title：American journal of physical anthropology

authors： Karlin S,Williams PT,Chakraborty R,Mathew S

更新日期：1983-12-01 00:00:00

abstract：:A very limiting factor for paleoanthropological studies is the poor state of preservation of the human fossil record, where fragmentation and deformation are considered normal. Although anatomical information can still be gathered from a distorted fossil, such specimens must typically be excluded from advanced morphol...

journal_title：American journal of physical anthropology

authors： Benazzi S,Gruppioni G,Strait DS,Hublin JJ

更新日期：2014-01-01 00:00:00

abstract：:Sexual dimorphism in primate species expresses the effects of phylogeny, life history, behavior, and ontogeny. The causes and implications of sexual dimorphism have been studied in several different primates using a variety of morphological databases such as body weight, canine length, and coat color and ornamentation...

journal_title：American journal of physical anthropology

authors： Masterson TJ,Hartwig WC

更新日期：1998-11-01 00:00:00

abstract：:The crown morphology of 202 dental casts from living Lengua Indians is described and compared with other Amerind, Melanesian, and Caucasoid samples. The Lengua dentition shows a high Mongoloid component with little effects of possible European admixture, thus supporting the theory that despite early Franciscan and Jes...

journal_title：American journal of physical anthropology

authors： Kieser JA,Preston CB

更新日期：1981-08-01 00:00:00

abstract：:Red blood cell count (RBC), hemoglobin concentration ([Hb]) and hematocrit (Hct) were measured in 303 male Quechua children and adults, aged 6 to 57 years, living a lifestyle as traditional pastoralists and horticulturalists at a mean altitude of 4,200 m in the Southern Peruvian Andes. Values for RBC, [Hb], and Hct in...

journal_title：American journal of physical anthropology

authors： Garruto RM,Dutt JS

更新日期：1983-07-01 00:00:00

abstract：:The effects of changes in nutritional and health status upon bone and enamel development are examined in a sample of 63 rural Guatemalan children (24 females, 39 males). The number of ossified hand-wrist centers at 3 years and the number of linear enamel hypoplasias (LEH) in approximately 0-3 year zones of developing ...

journal_title：American journal of physical anthropology

authors： May RL,Goodman AH,Meindl RS

更新日期：1993-09-01 00:00:00

abstract：:It has been suggested that bone and dental strontium contents of extinct terrestrial vertebrates vary in direct proportion to the strontium levels present in the animals' diets. It has been hypothesized that these trace quantities decrease as one moves upward along the food chain--herbivores having more strontium than...

journal_title：American journal of physical anthropology

authors： Elias M

更新日期：1980-07-01 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：:Two sequences of nucleotides are homologous if they are descended through a chain of replication from a common precursor molecule. Since organs are not copies or transcriptions of organs, the concept of morphological homology has no such simple and unambiguous definition. The theoretical vagueness of morphological hom...

journal_title：American journal of physical anthropology

authors： Cartmill M

更新日期：1994-05-01 00:00:00

abstract：:Atypical wear and oral lesions were studied in the dental remains from the Middle Neolithic Pitted Ware Culture site Ajvide on the island of Gotland in the Baltic Sea. Teeth (n = 764) from 17 males and 11 females were examined microscopically to document unusual wear, assess wear patterns and oral lesions as evidence ...

journal_title：American journal of physical anthropology

authors： Molnar P

更新日期：2008-08-01 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：:The 6 million French-Canadians of Québec derive from a relatively small number of founders. Consequently, some hereditary diseases, which may or may not present a worldwide distribution, have been detected in high frequency in this population. Several studies, however, indicate a nonuniform distribution of these disea...

journal_title：American journal of physical anthropology

authors： Gagnon A,Heyer E

更新日期：2001-01-01 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：:Excavations at hearth levels at the Molare Shelter in 1985 yielded the mandible of a 3-4-year-old child. The associated lithic artifacts recovered with it are Mousterian. Its features, although quite archaic, are within the known range of variation of Neandertals. Four deciduous molars are still preserved in the mandi...

journal_title：American journal of physical anthropology

authors： Mallegni F,Ronchitelli AT

更新日期：1989-08-01 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：:Lactase persistence (LP) is the phenotypic trait in which lactase secretion is maintained during adulthood. LP is due to mutations in the LCT enhancer region, located 14-kb upstream of the gene. In Europeans, the -13910*T allele is associated with LP. In Africans this allele is rare while other mutations in this same ...

journal_title：American journal of physical anthropology

authors： Friedrich DC,Callegari-Jacques SM,Petzl-Erler ML,Tsuneto L,Salzano FM,Hutz MH

更新日期：2012-03-01 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：:The Fontéchevade pi calotte is analyzed by principal coordinates on the basis of 12 measurements. It most closely resembles Classic Neandertals and the Steinheim cranium in shape, showing no special similarity to modern man. ...

journal_title：American journal of physical anthropology

authors： Corruccini RS

更新日期：1975-01-01 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：:Adult males in social groups often compete with other male group members for access to adult females. In some primate species, males also seek mating opportunities in neighboring social groups. Such extra-group fertilizations (EGFs) provide an additional source of variation in male fitness. This additional component o...

journal_title：American journal of physical anthropology

authors： Lawler RR

更新日期：2007-02-01 00:00:00

abstract：:Human remains giving direct evidence concerning the history of dissection practices are rare. Thirteen cranial fragments which bear evidence of having been purposely cut and sawn were discovered in a crypt during excavations undertaken in Sens (Yonne, France). Ceramics date these remains to the period from the end of ...

journal_title：American journal of physical anthropology

authors： Valentin F,d'Errico F

更新日期：1995-11-01 00:00:00

abstract：OBJECTIVES:A variety of mechanical processes can result in antemortem dental chipping. In this study, chipping data in the teeth of Homo naledi are compared with those of other pertinent dental samples to give insight into their etiology. MATERIALS AND METHODS:Permanent teeth with complete crowns evidencing occlusal w...

journal_title：American journal of physical anthropology

authors： Towle I,Irish JD,De Groote I

更新日期：2017-09-01 00:00:00

abstract：:As a part of a research project on molecular variation in Central Africa, we have analyzed 10 microsatellites (CD4, CSFO, D3S1358, D18S51, D21S11, F13A1, FES, TH01, TPOX, and VWA) in the Bamileke and Ewondo from Cameroon and the Sanga and Mbenzele Pygmies from the Central African Republic (a total of 390 chromosomes)....

journal_title：American journal of physical anthropology

authors： Destro-Bisol G,Boschi I,Caglià A,Tofanelli S,Pascali V,Paoli G,Spedini G

更新日期：2000-07-01 00:00:00

abstract：:We classified diversity in eight new complete mitochondrial genome sequences and 41 partial sequences from living Aboriginal Australians into five haplogroups. Haplogroup AuB belongs to global lineage M, and AuA, AuC, AuD, and AuE to N. Within N, we recognize subdivisions, assigning AuA to haplogroup S, AuD to haplogr...

journal_title：American journal of physical anthropology

authors： van Holst Pellekaan SM,Ingman M,Roberts-Thomson J,Harding RM

更新日期：2006-10-01 00:00:00

abstract：:Interdisciplinary research has benefitted the fields of anthropology and engineering for decades: a classic example being the application of material science to the field of feeding biomechanics. However, after decades of research, discordances have developed in how mechanical properties are defined, measured, calcula...

journal_title：American journal of physical anthropology

authors： Berthaume MA

更新日期：2016-01-01 00:00:00

abstract：:We constructed a three-dimensional whole-body musculoskeletal model of the Japanese macaque (Macaca fuscata) based on computed tomography and dissection of a cadaver. The skeleton was modeled as a chain of 20 bone segments connected by joints. Joint centers and rotational axes were estimated by joint morphology based ...

journal_title：American journal of physical anthropology

authors： Ogihara N,Makishima H,Aoi S,Sugimoto Y,Tsuchiya K,Nakatsukasa M

更新日期：2009-07-01 00:00:00

abstract：:The incidence of jugular foramen and mylohyoid groove bridging was studied in a population of East Asian Indian skulls (125 males and 109 females). The criteria of Dodo (J. Anat. 144:153-165, 1986) was used in the identification of a jugular bridge. There was an overall incidence of 8.1% in jugular foramen bridging, w...

journal_title：American journal of physical anthropology

authors： Sawyer DR,Kiely ML

更新日期：1987-04-01 00:00:00