Hypothesis: a selective advantage for cystic fibrosis heterozygotes.

abstract：:The Castel di Guido site, with an estimated age of approximately 300,000 years, has yielded abundant animal remains, Acheulian stone and bone bifaces, and small tools. On the surface of the original deposit, turned over by agricultural activities, fragments of human remains were discovered between 1980 and 1986, inclu...

journal_title：American journal of physical anthropology

authors： Mallegni F,Radmilli AM

更新日期：1988-06-01 00:00:00

abstract：:Femoral head size provides important information on body size in extinct species. Although it is well-known that femoral head size is correlated with acetabular size, the precision with which femoral head size can be estimated from acetabular size has not been quantified. The availability of accurate 3D surface models...

journal_title：American journal of physical anthropology

authors： Plavcan JM,Hammond AS,Ward CV

更新日期：2014-11-01 00:00:00

abstract：:Maternal reproductive investment includes both the energetic costs of gestation and lactation. For most humans, the metabolic costs of lactation will exceed those of gestation. Mothers must balance reproductive investment in any single offspring against future reproductive potential. Among mammals broadly, mothers may...

journal_title：American journal of physical anthropology

authors： Quinn EA

更新日期：2013-10-01 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 mountain gorillas of the central Virungas have been the subject of field study for the last 30 years; however, our understanding of morbidity and mortality in these apes is limited. This paper describes pathological conditions of the skeleton and dentition of these animals and evaluates lesions in relation to beha...

journal_title：American journal of physical anthropology

authors： Lovell NC

更新日期：1990-03-01 00:00:00

abstract：:Many studies of primate diversity and evolution rely on dental morphology for insight into diet, behavior, and phylogenetic relationships. Consequently, variation in molar cusp size has increasingly become a phenotype of interest. In 2007 we published a quantitative genetic analysis of mandibular molar cusp size varia...

journal_title：American journal of physical anthropology

authors： Koh C,Bates E,Broughton E,Do NT,Fletcher Z,Mahaney MC,Hlusko LJ

更新日期：2010-06-01 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：:With the development of computed tomography, soft tissues and foreign body collections are distinguished with remarkable resolution. This distinction is particularly useful when examining desiccated human remains, both in construction of research strategies and when invasive procedure (i.e., traditional autopsies, nee...

journal_title：American journal of physical anthropology

authors： Wong PA

更新日期：1981-05-01 00:00:00

abstract：:All primates regularly move within three-dimensional arboreal environments and must often climb, but little is known about the energetic costs of this critical activity. Limited previous work on the energetics of incline locomotion suggests that there may be differential selective pressures for large compared to small...

journal_title：American journal of physical anthropology

authors： Hanna JB,Schmitt D

更新日期：2011-05-01 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：:New insights may be gleaned by taking an ontogenetic approach to investigations of adult dimorphism. Previous work in this area relied on traditional, caliper-based, morphometric methods, and produced conflicting results. This study uses a three-dimensional (3-D) approach for both local and global form comparisons of ...

journal_title：American journal of physical anthropology

authors： Hens SM

更新日期：2003-05-01 00:00:00

abstract：:At least 29 species of fossil primates have been referred to fruit, nectar, and/or exudate feeding dietary niches. Many studies have detailed the morphological correlates of fruit feeding in comparison to insectivory and folivory. In contrast, few studies have sought to differentiate the morphological correlates of fr...

journal_title：American journal of physical anthropology

authors： Dumont ER

更新日期：1997-02-01 00:00:00

abstract：OBJECTIVES:This research theoretically models and empirically records symphyseal surface strain during in vitro human mandibular wishboning (lateral transverse bending) in order to test one aspect of the hypothesis that the chin is an adaptive response to masticatory stresses. From a perspective of optimality, three qu...

journal_title：American journal of physical anthropology

authors： Pampush JD,Daegling DJ

更新日期：2016-02-01 00:00:00

abstract：:Multivariate analysis of the relationship between degree of heterozygosity at four blood group loci and the morphological variability in a human population was carried out. Additionally, the possibility that dermatoglyphic patterns correlate with biochemical and anthropometric variables was also investigated. A strong...

journal_title：American journal of physical anthropology

authors： Kobyliansky E,Livshits G

更新日期：1986-06-01 00:00:00

abstract：OBJECTIVES:This study explores variation and trends in first molar enamel thickness and daily enamel secretion rates over a 2000 year period in Britain. METHODS:Permanent first molars (n = 89) from the Roman, Anglo-Saxon, and Medieval periods, as well as modern-day Britain, were analyzed using standard histological me...

journal_title：American journal of physical anthropology

authors： Aris C,Mahoney P,O'Hara MC,Deter C

更新日期：2020-09-01 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：:Movements of forelimb joints and segments during walking in the brown lemur (Eulemur fulvus) were analyzed using cineradiography (150 frames/sec). Metric gait parameters, forelimb kinematics, and intralimb coordination are described. Calculation of contribution of segment displacements to stance propulsion shows that ...

journal_title：American journal of physical anthropology

authors： Schmidt M,Fischer MS

更新日期：2000-02-01 00:00:00

abstract：:The basicranium has been argued to contain a strong phylogenetic signal in previous analyses of primate cranial morphology. Therefore, further study of basicranial morphology may offer new insights into controversial phylogenetic relationships within primate groups. In this study, I apply 3-D geometric morphometric te...

journal_title：American journal of physical anthropology

authors： Gilbert CC

更新日期：2011-01-01 00:00:00

abstract：OBJECTIVES:Histomorphometric studies show consistent links between physical activity patterns and the microstructure underlying the size and shape of bone. Here, we adopt a combined bone approach to explore variation in microstructure of ribs and humeri related to physical activity and historical records of manual labo...

journal_title：American journal of physical anthropology

authors： Pitfield R,Deter C,Mahoney P

更新日期：2019-08-01 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：: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：:A novel polymerase chain reaction (PCR) primer pair was used to analyze the frequency of insertion of the first described, nonhuman, baboon-specific Alu repetitive element in populations from the Papio hamadryas anubis and the Papio hamadryas hamadryas subspecies, and from a number of anubis-hamadryas hybrids. The Alu...

journal_title：American journal of physical anthropology

authors： Szmulewicz MN,Andino LM,Reategui EP,Woolley-Barker T,Jolly CJ,Disotell TR,Herrera RJ

更新日期：1999-05-01 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：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：OBJECTIVES:The Fueguians are descendants of the first settlers of America, a 'relict' isolated geographically for 10,000 years. We compared their cranial variation with other Americans, and samples from Asia and Australia to know whether the modern extinct Fueguians can be considered Paleoamericans or not. MATERIALS A...

journal_title：American journal of physical anthropology

authors： Turbon D,Arenas C,Cuadras CM

更新日期：2017-06-01 00:00:00

abstract：:Inferred dietary preference is a major component of paleoecologies of extinct primates. Molar occlusal shape correlates with diet in living mammals, so teeth are a potentially useful structure from which to reconstruct diet in extinct taxa. We assess the efficacy of Dirichlet normal energy (DNE) calculated for molar t...

journal_title：American journal of physical anthropology

authors： Bunn JM,Boyer DM,Lipman Y,St Clair EM,Jernvall J,Daubechies I

更新日期：2011-06-01 00:00:00

abstract：:Predation is proposed to be one of the most important factors influencing the evolution of mammalian societies. Although predation risk is thought to influence both the behavior and grouping patterns of most diurnal primates, evidence supporting this hypothesis is still limited. The spatial and temporal patterns of mi...

journal_title：American journal of physical anthropology

authors： Link A,Di Fiore A

更新日期：2013-04-01 00:00:00

abstract：OBJECTIVES:Human walking involves out-of-phase axial rotations of the thorax and pelvis. It has long been believed that this rotational capability is a distinctive feature of the genus Homo. However, Thompson et al. (2015) showed that chimpanzees also counter-rotate their thorax relative to the pelvis during bipedal wa...

journal_title：American journal of physical anthropology

authors： Kinoshita Y,Goto R,Nakano Y,Hirasaki E

更新日期：2021-01-01 00:00:00

abstract：:It is unclear whether earlier age at menarche is associated with higher body mass index (BMI) because they share a common genetic underpinning. We investigated the impact of single nucleotide polymorphisms (SNPs) influencing menarche timing on peripubertal BMI. For 556 Fels Longitudinal Study children (277 boys/279 gi...

journal_title：American journal of physical anthropology

authors： Johnson W,Choh AC,Curran JE,Czerwinski SA,Bellis C,Dyer TD,Blangero J,Towne B,Demerath EW

更新日期：2013-01-01 00:00:00

abstract：:Pliopithecinae and Crouzeliinae (Primates: Pliopithecidae) are distinguished dentally by the sharper crests, more compressed cusps, larger foveae, and narrower molars of the latter. Traditionally, such differences were qualitatively related to increased folivory in crouzeliines. This was subsequently disproved by micr...

journal_title：American journal of physical anthropology

authors： DeMiguel D,Alba DM,Moyà-Solà S

更新日期：2013-08-01 00:00:00