Computerized and fingertip measures of reaction time compared in individuals
Publication date: Available online 13 October 2016 Source:HOMO - Journal of Comparative Human Biology Author(s): B. Gutnik, W. Ljach, D. Gierczuk, D. Nash The main purpose of our study was to discover the correlation between the field fingertip and computerized methods of measuring reaction time selectively of the dominant and non-dominant hands for individual, non-trained, healthy young people of senior school age. Forty one, 17 year old, strongly right handed scholars, 21 boys and 20 girls with body mass indices between 18.5 and 25.0, participated in the experiment. The field fingertip method employed a metal metri...
Source: HOMO Journal of Comparative Human Biology - October 13, 2016 Category: Biology Source Type: research

Diachronic changes in size and shape of human proximal tibia in Central Europe during the latest 1200 years
Publication date: Available online 13 October 2016 Source:HOMO - Journal of Comparative Human Biology Author(s): H. Brzobohatá, V. Krajíček, Z. Horák, P. Sedlak, J. Velemínská During the past twelve centuries, the stature of Central European inhabitants has increased significantly with corresponding changes in the size of lower limb bones. The aim of our study was to determine whether these changes have occurred strictly in relation to size or if the shape of skeletal structures has been altered simultaneously. Diachronic size and shape changes in the proximal part of tibia in a Central European population (Cz...
Source: HOMO Journal of Comparative Human Biology - October 13, 2016 Category: Biology Source Type: research

Trepanation in the Late Bronze Age and Early Iron Age in Armenia
This study shows that archaeological sites of Armenia and anthropological materials have a potential to supply essential information on ancient history of the Armenian people and the region. (Source: HOMO Journal of Comparative Human Biology)
Source: HOMO Journal of Comparative Human Biology - October 4, 2016 Category: Biology Source Type: research

Supernumerary heads to biceps brachii muscle and Asian population history
Publication date: Available online 1 October 2016 Source:HOMO - Journal of Comparative Human Biology Author(s): N. Techataweewan, Y. Toomsan, C. Maneenin, N. Tungsrithong, N. Tayles Supernumerary heads of biceps brachii are one of the most common anatomic variants in the muscular system and appear to develop under genetic control and vary in prevalence among populations. Variation in prevalence and morphology therefore has the potential to contribute to understanding of human population history. Until now, there has been no publication of the prevalence of the variant in Southeast Asian populations. The aim of this ...
Source: HOMO Journal of Comparative Human Biology - October 1, 2016 Category: Biology Source Type: research

The mandibular molar pit-tubercle (MMPT) dental nonmetric trait: comprehensive analysis of a large sample
This study aims to analyze a) trait frequencies, b) grade definitions, c) intraobserver error, d) sexual dimorphism, e) asymmetry, and f) trait associations for MMPT in a Portuguese sample. The first (LM1), second (LM2) and third (LM3) lower molars of 600 identified individuals from the Coimbra collections were scored for MMPT in three scoring sessions. Intraobserver error, bilateral asymmetry and trait correlations were tested using Kendall's τ-b, while sexual dimorphism was verified using Pearson's χ2. Frequencies (LM1: 2.1%; LM2: 3.5%; LM3: 30.3%) were similar to previous reports. However, a new free apex cusp form (g...
Source: HOMO Journal of Comparative Human Biology - September 19, 2016 Category: Biology Source Type: research

Is there a dependence between children's body weight and the concentration of metals in deciduous teeth?
Publication date: Available online 19 September 2016 Source:HOMO - Journal of Comparative Human Biology Author(s): Agnieszka Fischer, Danuta Wiechuła Malnutrition, manifested by both overweight and underweight, can lead to serious health consequences. The subject of the study was to determine the concentration of elements such as chromium (Cr), calcium (Ca), copper (Cu), iron (Fe) and manganese (Mn) in children's deciduous teeth in relation to their body weight. The calculated body mass index (BMI) values and an application of the growth chart showed that 59% of children among the studied sample had normal weight. In ...
Source: HOMO Journal of Comparative Human Biology - September 18, 2016 Category: Biology Source Type: research

Assessing size and strength of the clavicle for its usefulness for sex estimation in a British medieval sample
Publication date: Available online 8 September 2016 Source:HOMO - Journal of Comparative Human Biology Author(s): Thomas Atterton, Isabelle De Groote, Constantine Eliopoulos The construction of the biological profile from human skeletal remains is the foundation of anthropological examination. However, remains may be fragmentary and the elements usually employed, such as the pelvis and skull, are not available. The clavicle has been successfully used for sex estimation in samples from Iran and Greece. In the present study the aim was to test the suitability of the measurements used in those previous studies on a Briti...
Source: HOMO Journal of Comparative Human Biology - September 8, 2016 Category: Biology Source Type: research

What to expect from an evolutionary hypothesis for a human disease: the case of type 2 diabetes
Publication date: Available online 6 September 2016 Source:HOMO - Journal of Comparative Human Biology Author(s): Milind Watve, Manawa Diwekar-Joshi Evolutionary medicine has a promise to bring in a conceptual revolution in medicine. However, as yet the field does not have the same theoretical rigor as that of many other fields in evolutionary studies. We discuss here with reference to type 2 diabetes mellitus (T2DM) what role an evolutionary hypothesis should play in the development of thinking in medicine. Starting with the thrifty gene hypothesis, evolutionary thinking in T2DM has undergone several transitions, modi...
Source: HOMO Journal of Comparative Human Biology - September 6, 2016 Category: Biology Source Type: research

Sexual dimorphism in two mediaeval Muslim populations from Spain
In this study, two Mediaeval Muslim populations from Granada, Spain, were compared, testing whether differences in living environment (urban vs. rural) would result in distinct degrees of sexual dimorphism of long bones. We studied skeletal material from urban (Sahl ben Mālik, Granada, Spain) and rural (La Torrecilla, Arenas del Rey, Granada, Spain) cemeteries. Only adult individuals (66 from Sahl ben Mālik and 72 from La Torrecilla) were selected for the study. Maximum length, minimum circumference of the shaft and maximum widths of the proximal and distal epiphyses were measured in each bone. The index of sexual dimorp...
Source: HOMO Journal of Comparative Human Biology - August 31, 2016 Category: Biology Source Type: research

Craniometric examination of Longxian and Qi Li Cun archaeological sites to assess population continuity in northern China
Publication date: Available online 24 August 2016 Source:HOMO - Journal of Comparative Human Biology Author(s): Victoria E. Gibbon, Tarun A. Porter, Xiujie Wu, Liu Wu In this paper, population continuity and discontinuity in northern China are explored using craniometric analyses from two archaeological sites, Longxian (Warring States) and Qi Li Cun (Han Dynasty). Neither population has been previously studied. Artefactual evidence shows the individuals from Qi Li Cun were Xianbei, descendants from Mongolia. Longxian is from further south in the central plains at an earlier time, thus, we expect to observe variabilit...
Source: HOMO Journal of Comparative Human Biology - August 24, 2016 Category: Biology Source Type: research

An analysis of the origin of an early medieval group of individuals from Gr ódek based on the analysis of stable oxygen isotopes
Publication date: Available online 17 May 2016 Source:HOMO - Journal of Comparative Human Biology Author(s): A. Lisowska-Gaczorek, S. Kozieł, B. Cienkosz-Stepańczak, K. Mądrzyk, J. Pawlyta, S. Gronkiewicz, M. Wołoszyn, K. Szostek In the early Middle Ages, the region of the Cherven Towns, which is now located on both sides of the Polish–Ukrainian border, was fiercely contested by Slavs in the process of forming their early states. The main objective of the present study was to investigate the homogeneity of an early medieval population uncovered in that region, in the town of Gródek on the Bug Riv...
Source: HOMO Journal of Comparative Human Biology - July 19, 2016 Category: Biology Source Type: research

Parental smoking during pregnancy shortens offspring's legs
Publication date: Available online 29 June 2016 Source:HOMO - Journal of Comparative Human Biology Author(s): E. Żądzińska, S. Kozieł, B. Borowska-Strugińska, I. Rosset, A. Sitek, W. Lorkiewicz One of the most severe detrimental environmental factors acting during pregnancy is foetal smoke exposure. The aim of this study was to assess the effect of maternal, paternal and parental smoking during pregnancy on relative leg length in 7-10-year-old children. The research conducted in the years 2001-2002 included 978 term-born children, 348 boys and 630 girls, at the age of 7-10 years. Information concerning...
Source: HOMO Journal of Comparative Human Biology - June 29, 2016 Category: Biology Source Type: research

The influence of climate on age at menarche: augmented with the influence of ancestry
Publication date: Available online 23 June 2016 Source:HOMO - Journal of Comparative Human Biology Author(s): K. Sohn Samples representative of South Korea, Indonesia, and Peninsular Malaysia were analyzed and the influence of climate on age at menarche was investigated. The sample size was 24,651 for Korea (birth years 1941-1992), for Indonesia 8,331 (birth years 1944-1988) plus 20,519 (birth years 1978-1997), and 2,842 for Peninsular Malaysia (birth years 1927-1968). Respondents recalled their age at menarche. The mean age at menarche was calculated for each birth year by country, and for Malaysia, additionally by ...
Source: HOMO Journal of Comparative Human Biology - June 23, 2016 Category: Biology Source Type: research

Does age difference really matter? Facial markers of biological quality and age difference between husband and wife
This study aims to fill this gap. We had used facial photographs and demographic data of heterosexual marriages. Facial cues of biological quality, such as averageness, bilateral symmetry, and sexual dimorphism, were digitally measured using geometric morphometric methods and then associated with spouses’ age difference. It turned out that a greater age disparity between spouses correlates, in both partners, with higher scores in facial measures which indicate partners’ biological quality. One exception is female facial masculinity – generally regarded as an unattractive marker of a low biological quality – which, ...
Source: HOMO Journal of Comparative Human Biology - May 27, 2016 Category: Biology Source Type: research

An analysis of the origin of an early medieval group of individuals from Gródek based on the analysis of stable oxygen isotopes
Publication date: Available online 17 May 2016 Source:HOMO - Journal of Comparative Human Biology Author(s): A. Lisowska-Gaczorek, S. Kozieł, B. Cienkosz-Stepańczak, K. Mądrzyk, J. Pawlyta, S. Gronkiewicz, M. Wołoszyn, K. Szostek In the early Middle Ages, the region of the Cherven Towns, which is now located on both sides of the Polish–Ukrainian border, was fiercely contested by Slavs in the process of forming their early states. The main objective of the present study was to investigate the homogeneity of an early medieval population uncovered in that region, in the town of Gródek on the Bug Riv...
Source: HOMO Journal of Comparative Human Biology - May 17, 2016 Category: Biology Source Type: research