Dermatoglyphic Sexual Dimorphism in Israelis: Principal Components and Discriminant Analyses Applied to Quantitative Traits

The dermatoglyphics of 372 males and 208 females, all Israeli Jews, were analyzed comparatively. A total of 66 variables were used entailing 24 quantitative dermatoglyphic traits, 11 indices of intraindividual diversity, 15 indices of bilateral directional asymmetry and 16 indices of fluctuating asymmetry. The correlation matrices of the traits were used in a principal components analysis and the following 5 factors, which emphasize five distinct groups of variables, were identified in both sexes: 1. A “digital pattern size factor” which has high loadings for the ridge counts of individual fingers, for variables derived from these counts, and for the pattern intensity index. 2. A “palmar lines factor” which describes the variability of the main line index and of its components. 3. A “a-b ridge counts factor” which describes the variability of the a-b ridge counts. 4. A “finger ridge counts diversity factor” which has high loadings for the indices representing the intraindividual diversity of finger ridge counts, 5. A “fluctuating asymmetry factor” which concentrates the high loadings for the fluctuating asymmetry indices. The last two factors are described in the literature for the first time.There are important similarities between the two sexes in the variables associated with the factors; there are also some differences especially concerning the asymmetry indices. The discriminant analysis revealed 10 variables as the most efficient discriminants: three finger ridge counts, the right a-b ridge count, the right A-line exit, four indices of directional and one index of fluctuating asymmetry. They permit a correct classification by sex in 71.6% of the subjects. It is worth noting the discriminant possibilities of the directional asymmetry indices and the fact that the right hand possesses more highly discriminant traits than the left hand. A relation is presumed between the hemizygosity of males for the genes located on the X chromosome and higher dermatoglyphic asymmetry in males

Dermatoglyphic sexual dimorphism in East European Jews

Abstract. — The dermatoglyphics of 206 males and 133 females, all Jews of East European extraction were studied. The general characteristics of dermatoglyphics in this population are common to those found in other Jewish groups. The sexual dimorphism in this population is well expressed in a great number of dermatoglyphic traits. Together with the generally known male-female differences in finger patterns frequencies (higher frequency of whorls and lower frequency of ulnar loops in males), we also found higher ridge counts (RCs) of these two pattern types in males. Correlated with the latter are the sex differences in other characteristics, such as the total ridge count (TRC) and its components, the RCs of individual fingers and the total RC of each hand, as well as the differences of the coefficients of variation of all the categories of ridge counts. All the sex differences confirm the validity of the authors' previous observations on male groups, concerning the : 1. Reciprocal influence of the concomitant presence of different pattern types on their RCs values ; 2. Inverse correlation existing between the mean size of a pattern type and the variability of its RCs ; 3. Dependence of the TRC variability on the frequencies of different pattern types (each pattern type influencing the TRC variability in a specific measure). The discriminant analysis in which 66 dermatoglyphic variables are used allowed a correct classification by sex of 80.4 % of the sampled individuals. The idea that environmental factors acting on the period of dermatoglyphic organization may influence this process in a different way in the two sexes, influencing also the level of the dermatoglyphic sexual dimorphism, is suggested.DIMORPHISME SEXUEL DES DERMATOGLYPHES CHEZ LES JUIFS ORIGINAIRES D'EUROPE DE L'EST Résumé. — Les dermatoglyphes ont été étudiés sur 206 hommes et 133 femmes juifs originaires d'Europe de l'Est. Les caractéristiques générales sont comparables à celles observées sur d'autres groupes de Juifs. Le dimorphisme sexuel s'observe bien pour un grand nombre de traits dermatoglyphiques. En dehors de la différence bien connue entre hommes et femmes pour les fréquences des dessins digitaux (plus grande fréquence des tourbillons et plus faible fréquence des boucles ulnaires chez les hommes), nous trouvons aussi un nombre de crêtes plus élevé chez les hommes pour ces deux dessins. Les autres différences sexuelles sont liées aux précédentes, comme par exemple le nombre total de crêtes (TRC) et ses composantes, le nombre de crêtes par doigt et par main, ou comme les différences dans les coefficients de variation de toutes les catégories de nombre de crêtes.Kobyliansky E., Micle S. Dermatoglyphic sexual dimorphism in East European Jews. In: Bulletins et Mémoires de la Société d'anthropologie de Paris, Nouvelle Série. Tome 1 fascicule 1-2, 1989. pp. 13-36

Dermatoglyphic sexual dimorphism in Middle Eastern Jews

Summary. — The dermatoglyphics of Jews of Middle Eastern extraction display, in general, the same features as do the majority of Caucasoid populations. In males there are more whorls and fewer ulnar loops than in females, and in correlation with this, a higher pattern intensity index, and higher total and absolute ridge counts. On the palms, where the image is more varied in diverse populations, the males of our sample, show more patterns in the left and right thenar areas and in the hypothenar area, especially on its left side. Some other palmar traits, as the line A exits and the a-b distance, present also significant differences between the sexes. Using only dermatoglyphic traits with high discriminant power (F > 4), discriminant analysis permits a correct classification by sex of 63,3 % of individuals, which is slightly better than in the North African but less than in East European or Yemenite Jewish groups. This indicates different levels of sexual dimorphism in populations otherwise possessing similar dermatoglyphic characteristics, and suggests the possible role of environmental prenatal factors in attainment of the dermatoglyphic sexual dimorphism level.Kobyliansky E., Micle S. Dermatoglyphic sexual dimorphism in Middle Eastern Jews. In: Bulletins et Mémoires de la Société d'anthropologie de Paris, XIV° Série. Tome 4 fascicule 4, 1987. pp. 271-289

Dermatoglyphic sexual dimorphism in Yemenite Jews

Summary. — The dermatoglyphics of male and female Israeli Jews of Yemenite extraction, are similar to those of Jews from other geographical regions, especially with respect to the finger traits. Regarding palmar traits, some differences are evident, such as higher frequencies of patterns in the thenar and hypothenar areas and lower frequencies of accessory subdigital triradii. Dermatoglyphic sexual dimorphism is strongly expressed in this population and displays, in general, the same features as in other populations of different racial provenance. In males, there are more whorls and fewer ulnar loops on fingertips and also higher finger pattern ridge counts. These are correlated with higher total ridge counts and pattern intensity indices. Insofar as total ridge counts are concerned, there is a large difference of 25.8 ridges between the two sexes. Regarding palmar dermatoglyphics, the males differ from the females in having higher frequencies of patterns in palmar areas, greater a-b ridge counts and a-b distances, and in several other respects.Résumé. — Les dermatoglyphes d'hommes et de femmes juifs israéliens d'origine yéménite sont comparables à ceux de Juifs originaires d'autres régions géographiques, en particulier en ce qui concerne les doigts. Quant aux dermatoglyphes palmaires, quelques différences sont évidentes, comme une plus haute fréquence des dessins des régions du thénar et de l'hypothénar et une plus basse fréquence du nombre des triradii interdigitaux. Dans cette population, le dimorphisme sexuel des dermatoglyphes est important et montre en général les mêmes tendances que dans d'autres populations d'origine raciale différente. Chez les hommes, les doigts montrent davantage de tourbillons et moins de boucles ulnaires, ainsi qu'un nombre de crêtes plus élevé. Ces résultats sont associés à un nombre total de crêtes (TRC) et à des indices (Pattern Intensity Indices) plus élevés. Pour le TRC, la différence sexuelle est grande et représente 25.8 crêtes. Pour les dermatoglyphes palmaires, les hommes diffèrent des femmes, entre autre, par une plus grande fréquence de dessins, une distance a-b et un nombre de crêtes a-b plus élevés.Micle S., Kobyliansky E. Dermatoglyphic sexual dimorphism in Yemenite Jews. In: Bulletins et Mémoires de la Société d'anthropologie de Paris, XIV° Série. Tome 4 fascicule 2, 1987. pp. 95-113

Dermatoglyphic Distances Between Israeli Jewish Population Groups of Different Geographic Extraction

The present study concerns the dermatoglyphics of Israeli Jews, males and females, of East European, Middle Eastern, North African and Yemenite extraction. Four non-correlated or little correlated dermatoglyphic traits, namely, the pattern inten­sity index, the main line index, the frequency of patterns in the hypothenar area and the frequency of subdigital and accessory triradii were used to calculate dis­tance coefficients and to perform cluster analyses, using also analogous literature data on Caucasoids, Mongoloids and Negroids. Our cluster analyses point to the dermatoglyphic proximity between the East European, Middle Eastern and North African Jewish groups, with the non-Jewish Caucasoid groups from Middle Asia and the Caucasus interposed between them. Near these groups we find the East European Caucasoid group, while the Yemenite Jews, the Mongoloids and the Negroids are at a distance. The cluster diagrams showed similarity to those derived from gene frequencies and skin color data for analogous groups, thus indicating that judiciously selected dermatoglyphic traits are suitable for calculating interpopulation distance coefficients

Southern sinai bedouin tribes : preliminary communication on an anthropological survey / Les tribus bédouins du sud Sinaï ; communication préliminaire sur leur anthropologie ; considérations générales

Summary. — In the course of a large-scale anthropological study on the population of Southern Sinai certain aspects of the biology of the local Bedouin tribes have been investigated. These included the physical development of Bedouin children and the physio-anatomical features of the adults (e.g. anthropometry, dermatoglyphics, dental morphology, mineral saturation of the skeleton, etc.). Main sites in the Southern Sinai where the research was carried out are presented in the maps. In this preliminary communication four different traits of laterality are discussed : handedness, hand-clasping, arm-folding and dominant eye. An introductory chapter dealing with the origin and sociological aspects of the investigated population precedes the specific evaluation of the mentioned traits.LES TRIBUS BÉDOUINS DU SUD-SINAI, COMMUNICATION PRÉLIMINAIRE SUR LEUR ANTHROPOLOGIE ; CONSIDÉRATIONS GÉNÉRALES Résumé. — Au cours d'une étude anthropologique de large échelle, sur la population du Sud-Sinaï, certains aspects de la biologie des tribus Bédouins locales ont été étudiés. Ils comprennent le développement physique des enfants Bédouins et des caractéristiques anatomo-physiologiques des adultes (comme l'anthropométrie, les dermatoglyphes, la morphologie dentaire, le degré de calcification du squelette, etc.). Une carte est publiée où sont précisées les localités où se sont effectuées les recherches. Dans cette communication préliminaire, 4 caractères différents, de latéralité, sont discutés : le côté dominant, le test des mains jointes, celui des bras croisés, et l'œil dominant. Un chapitre d'introduction donnant l'origine et l'aspect sociologique des populations étudiées, précède l'évolution spécifique des traits pris en considération.Arensburg B., Hershkovitz I., Kobyliansky E., Micle S. Southern sinai bedouin tribes : preliminary communication on an anthropological survey / Les tribus bédouins du sud Sinaï ; communication préliminaire sur leur anthropologie ; considérations générales . In: Bulletins et Mémoires de la Société d'anthropologie de Paris, XIII° Série. Tome 6 fascicule 4, 1979. pp. 363-372

Kebutuhan Pendampingan Pastoral Untuk Mengatasi Kecanduan Game Online Remaja Di Jemaat Gmahk Pioneer Tompaso

The purpose of this study was to determine the importance of pastoral care for church youth who are addicted to online games. The method used is a survey with data collection techniques using a questionnaire with non-probability sampling. The number of questionnaires was collected from 66 respondents among the 130 congregations. The research subjects were the Pioneer Tompaso Seventh-day Adventist Church in Jl. Pemuda Desa Kamanga 2, Tompaso District, Minahasa Regency, North Sulawesi Province. The data were analyzed according to the five respondents' preferences for the answers to the questionnaire, ranging from strongly agree to disagree strongly. The results show that 75.8% agree and strongly agree that online games have a terrible impact on their future and 71.4% want to get rid of online game addiction. The results also show that 62.1% of respondents need pastoral assistance and trust the pastor's guidance and advice