Consulta: subjectFacets:"Male"
Registros recuperados: 23
Data/hora: 10/06/2024 10:00:44

True polyploid meiosis in the human male
Provedor de dados: Genetics and Molecular Biology
Autores: Pearson,Peter L.; Madan,Kamlesh.
Abstract Polyploidy does not usually occur in germinal cells of mammals and other higher vertebrates. We describe a unique example of mosaic autotetraploidy in the meiosis of a human male. Although the original observations were made in the late 1960s, we did not publish them at that time, because we expected to detect further examples that could be described together. However, this did not occur and we have now decided to make the observations available to demonstrate that polyploidy in mammalian male meiosis can arise at a higher frequency than expected by random polyploidization of individual meiotic cells, by either DNA duplication or cell fusion prior to synapsis. This is the first description of a population of primary spermatocytes exhibiting...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polyploidy; Meiosis; Human; Male.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000300410

Comparative Study of Anthropometric Measurement and Body Composition between Elite Soccer and Basketball Players
Provedor de dados: International Journal of Morphology
Autores: Popovic,Stevo; Akpinar,Selçuk; Jaksic,Damjan; Matic,Radenko; Bjelica,Dusko.
The purpose of this study was to describe anthropometric characteristics and body composition of elite soccer and basketball players as well as to make comparisons between them. Seventy-one males were enrolled in the study, divided into three groups: twenty-six soccer players, fourteen basketball players and thirty-one healthy sedentary subjects. All subjects were assessed for the anthropometric measures required for the calculation of body composition variables, using the standardized procedures recommended by established literature. Data was analyzed using SPSS and the descriptive statistics were expressed as a mean (SD) for each variable, while the ANOVA and LSD Post Hoc tests were carried out to detect the effects of each type of sport. The results...
Tipo: Journal article
Palavras-chave: Sport; Top-Level; Football; Basket; Male.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000200016

Comparative Study of Anthropometric Measurement and Body Composition between Elite Soccer and Volleyball Players
Provedor de dados: International Journal of Morphology
Autores: Popovic,Stevo; Bjelica,Dusko; Jaksic,Damjan; Hadzic,Rasid.
The purpose of this study was to describe anthropometric characteristics and body composition of elite soccer and volleyball players as well as to make comparisons between them. Seventy-one males were enrolled in the study, divided into three groups: twenty-six soccer players, fourteen volleyball players and thirty-one healthy sedentary subjects. All subjects were assessed for the anthropometric measures required for the calculation of body composition variables, using the standardized procedures recommended by established literature. Data was analyzed using SPSS and the descriptive statistics were expressed as a mean (SD) for each variable, while the ANOVA and LSD Post Hoc tests were carried out to detect the effects of each type of sport. The results...
Tipo: Journal article
Palavras-chave: Sport; Top-Level; Football; Volleyball; Male.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000100044

Morphological Evaluation of Head in Turkman Males in Gorgan-North of Iran
Provedor de dados: International Journal of Morphology
Autores: Golalipour,Mohammad Jafar; Jahanshahi,Mehrdad; Haidari,Kamran.
Cephalometry or measurement of human head is used in identification, forensic medicine, plastic surgery, orthodontics, archeology and examine the differences between races and ethnicities. This descriptive investigation was undertaken on 198 young Turkman males to determine the cephalic index and head phenotype among them in Gorgan, North of Iran. In this study cephalic index was determined by classic cephalometric method. Mean and standard deviation of cephalic index was 80.4 + 4. Based on the cephalic index, the head shape of 42.4% of individuals were brachycephalic, 7.6% hyperbrachycephalic, 40.9% mesocephalic and 8.1% dolicocephalic. This research showed that Turkman individuals have typical brachycephalic phenotype. In comparison to other studies, we...
Tipo: Journal article
Palavras-chave: Craniofacial forms; Cephalometry; Cephalic index; Male.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000100013

The Variation of Head Shapes in 17-20 Years Old Native Fars Male in Gorgan-North of Iran
Provedor de dados: International Journal of Morphology
Autores: Golalipour,Mohammad Jafar.
Cephalic index and head shape are affected by geographical, gender, age and racial factors. This study carried out to determine cephalic index and head shape in 17-20 years old native Fars male in Gorgan, North of Iran. This descriptive study was done on 200 of 17-20 years old male native Fars by classic cephalometry in Gorgan, North of Iran. Mean and SD of cephalic index was 84.8 + 6.9. The head shape of 52% of individuals was hyperbrachycephalic, 25% brachycephalic, 21.5% mesocephalic and 1.5% dolichocephalic. Native Fars individuals showed typical hyperbrachycephalic. In comparing to other studies in world, we can conclude that the role of racial/ethnic factor in cephalic diameters
Tipo: Journal article
Palavras-chave: Craniofacial forms; Cephalometry; Cephalic index; Prosopic index; Male.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000300011

Effects of Transgenic Soybean and Organic Soybean on Rat Penis Morphology during the Aging Process
Provedor de dados: International Journal of Morphology
Autores: Corrêa,L. B. N. S; Contreiras,E. C; Daleprane,J. B; Boaventura,G. T; Figueiredo,M. A; Chagas,M. A.
The contents of soybean can modify the structure of the reproductive system, especially, when consumed for prolonged periods. In this study, we evaluated the effects of the consumption of transgenic soybean on rat penis morphology after prolonged use. Wistar rats (n = 30) were divided into three groups according to diet: Transgenic Soybean (TS) group, Organic Soybean (OS) group and Control (C) group. After 455 days of intake, the rats were sacrificed and the penises were excised and fixed in formalin for subsequent histological processing. The samples were stained with hematoxylin and eosin, Weigert’s resorcin-fuchsin stain, and picrosirius red with polarization. The images were scanned for the histomorphometric analyses of the corpora cavernosa, corpus...
Tipo: Journal article
Palavras-chave: Phytoestrogens; Diet; Soybeans; Male; Morphology; Morphometry.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000300037

Ethnic Difference in Brain Weight of 17-20 Year-Old Males in Northern Iran
Provedor de dados: International Journal of Morphology
Autores: Haidari,Kamran; Jahanshahi,Mehrdad; Golalipour,Mohammad Jafar.
Cranial capacity and brain weight are important measurements in the study of racial/ethnic differences. Using linear (Lee­Pearson's) formula, brain weight and cranial capacity were estimated in 398 normal 17 to 20-year-old males (200 native Fars and 198 Turkman) males in Northern Iran. The dimensions of the head measured with spreading caliper and auricular head spanner. The mean±S.D of brain weight and cranial capacity in native Fars males were 1343.45±102.37 cm3, and 1390.47±105.95 g, and that of Turkmans were 1163.02±115.76 cm3 and 1203.73±119.81 g, respectively. Cerebral Index was 3.40 ±0.37 % and 2.52 ±0.37 % in Native Fars and Turkmans, respectively and cerebral quotient was higher in Turkmans (8.34) than Native Fars males (7.95). This study showed,...
Tipo: Journal article
Palavras-chave: Anthropometry; Cephalometry; Brain weight; Cranial capacity; Cerebral index; Cerebral quotient; Male; Iran.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300028

Morphologic Bilateral Differences of Top Level Gymnasts
Provedor de dados: International Journal of Morphology
Autores: Cuk,Ivan; Pajek,Maja Bucar; Jakse,Barbara; Pajek,Jernej; Pecek,Mojca.
Gymnastics is a basic sport, which was developed under a philosophic idea "Mens sana in corpore sano". Such an idea supposes harmonized body and soul. We can also understand under such a terminus the symmetricity of the athletic body. Aim of our investigation was to determine whether gymnast's body is symmetric. On the sample of 40 top level gymnasts (average age of 23 years) who were attending World Cup Competition in Ljubljana in the year 2000 we measured 13 anthropometric characteristics ­ joint diameters, circumferences and skinfold thicknesses on the left and right side. While there were no differences between the left and right leg parameters, there were some significant differences between the left and right arm measures. We found significant...
Tipo: Journal article
Palavras-chave: Anthropometrics; Bilateral differences; Male; Artistic gymnastics.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100019

Descriptions of a new species of Foenatopus Smith from China and the male of Parastephanellus brevicoxalis (Hymenoptera, Stephanidae)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Chen, H.-y.; Achterberg, C. van; Xu, Z.-f.
A new species of the stephanid genus Foenatopus Smith, Foenatopus weii sp. n., is described and illustrated from Yunnan Province, China. A modified section of the identification key to species of Foenatopus is added to include the new species. The male of Parastephanellus brevicoxalis Hong, van Achterberg &amp; Xu, 2011 from Guangdong Province, China is also described and illustrated for the first time.
Tipo: Article / Letter to the editor
Palavras-chave: China; Foenatopus; Male; New species; Oriental Region; Parastephanellus brevicoxalis.
Ano: 2016
URL: http://www.repository.naturalis.nl/record/625045

TICK REPRODUCTION IN A MALE TICK, HAEMAPHYSALIS LONGICORNIS (ACARI : IXODIDAE)
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: Matsuo, Tomohide; Fujisaki, Kozo.
Palavras-chave: Spermatogenic cell; Spermatophore; Accessory gland; Male; Haemaphysalis longicornis.
Ano: 2003
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/630

Exposure of C57BL/6J Male Mice to an Electric Field Improves Copulation Rates with Superovulated Females
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: HORI, Takuya; YAMSAARD, Thicomeporn; UETA, Yoshiko Yanagimoto; HARAKAWA, Shinji; KANEKO, Etsushi; MIYAMOTO, Akio; XUAN, Xuenan; TOYODA, Yutaka; SUZUKI, Hiroshi; 宮本, 明夫; 玄, 学南; 鈴木, 宏志.
It is well-known that there are considerable strain differences in the relative copulation rates between male and superovulated female mice. In particular, the C57BL/6J strain of mice has a lower rate of successful copulation. We examined the effect of exposure to an electric field on sexual behavior in C57BL/6J male mice. When C57BL/6J males were exposed to a 50 Hz, 45 kV/m electric field for 30 min per day for 11 days and placed in a cage with a superovulated female of the same strain, the successful copulation rates of males was significantly improved compared with unexposed males (P&lt;0.05). These results suggest that the exposure of C57BL/6J male mice to an electric field improves their sub-fertility activity in mating with superovulated females.
Palavras-chave: Mice; Male; Electric field; Copulation; Superovulation; Sexual behavior.
Ano: 2005
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3021

Redescription of Oropezella abdominalis Collin from Chile with description of the male and a key to the Neotropical genera of Ocydromiinae (Diptera, Hybotidae)
Provedor de dados: Revista Brasileira de Entomologia
Autores: Ale-Rocha,Rosaly.
Oropezella abdominalis Collin, 1933 (Diptera, Hybotidae) is redescribed and the male is described for the first time. An identification key to the Neotropical genera of Ocydromiinae is also provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical Region; Ocydromiini; Male; Systematics.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262007000400003

Notes on Neotropical Proconiini (Hemiptera: Cicadellidae: Cicadellinae): VII: First detailed description of the female genitalia of a Diestostemma species
Provedor de dados: Revista Brasileira de Zoologia
Autores: Mejdalani,Gabriel; Silva,Roberta dos Santos da.
Diestostemma Amyot &amp;amp; Serville, 1843 is a diverse sharpshooter genus with 32 species. A description and illustrations of Diestostemma nasutum Schmidt, 1910 are provided. The species, previously known from Ecuador, is newly recorded from Colombia. Both the male and female genitalia are described for the first time. This is the first detailed description of the female genitalia of a Diestostemma species. Diestostemma nasutum can be distinguished from the other species of the genus by the following features of the aedeagus: shaft with the distal third distinctly curved dorsally; base of basiventral aedeagal process with a lobe directed anteriorly; and basiventral aedeagal process bifurcated on its basal portion. The style of D. nasutum, whose apical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Auchenorrhyncha; Diestostemma nasutum; Male; Membracoidea; Morphology; Sharpshooter; Taxonomy.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000500018

Description of the male of Culicoides dureti (Diptera: Ceratopogonidae)
Provedor de dados: Revista de la Sociedad Entomológica Argentina
Autores: Spinelli,Gustavo R.; Ronderos,María M.
The male of Culicoides dureti Ronderos &amp;amp; Spinelli is described and illustrated from specimens collected associated with females in the province of Misiones, Argentina, and a brief description of the female is provided. The species is compared with Culicoides barbosai Wirth &amp;amp; Blanton.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Culicoides dureti; Male; Argentina.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802007000200009

First description of the male of Diaphanobezzia patagonica (Diptera: Ceratopogonidae)
Provedor de dados: Revista de la Sociedad Entomológica Argentina
Autores: Spinelli,Gustavo R.; Ronderos,María M.
The male of Diaphanobezzia patagonica Spinelli &amp;amp; Grogan is described and photographed from specimens collected in association with females in the Somuncura plateau, in the steppe area of central Patagonia. The male herein described is compared with the congeners D. pellucida Ingram &amp;amp; Macfie and D. spinellii Wirth &amp;amp; Grogan. Besides, D. patagonica is recorded from the Laguna Blanca National Park.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diaphanobezzia patagonica; Male; Argentina; Somuncura plateau; Laguna Blanca National Park.
Ano: 2015
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802015000100006

Clinical and radiographic changes of carpi, tarsi and interphalangeal joints of beef zebu bulls on semen collection regimen
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Motta,G.A.; Girardi,A.M.; Sabes,A.F.; Portugal,E.S.; Nociti,R.P.; Bueno,G.M.; Marques,L.C.
ABSTRACT Osteoarthritis and osteochondrosis are highly correlated to reproductive failure in bulls. This study aimed to evaluate the carpal, tarsal and interphalangeal lesions in beef zebu bulls on semen collection regimen. Twenty-one beef cattle bulls, in a total of forty-one animals, were split into three age-based groups: animals from two to four years old (GI), from more than four to eight years old (GII) and above eight years old (GIII). The clinical findings were conformational changes of limbs, synovial effusion, peripheral venous engorgement of joints and prolonged decubitus. The total population showed moderate clinical manifestation and radiographic score. The GIII presented more severe joint lesions. Carpi and tarsi regions had discrete to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Infertility; Male; Overweight; Radiology.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000601357

Pseudo-hermafroditismo masculino em cadela
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Fantoni,M.S.; Silva,B.C.; Ferreira,L.F.L.; Valle,G.R.; Rachid,M.A.
A case of male pseudo-hermaphrodite in a six-month-old Pinscher dog with mild signs of agression towards other dogs is reported. The animal presented fibrous mass in clitorial region, with structure similar to a diminutive penis. Testicles were found in the abdominal cavity, uterus had normal size and localization and hypertrophic clitoris was seen during exploratory laparotomy. The histopathological examination revealed testicular tissue, composed of hypotrophic seminipherous tubules and exuberant stroma and uterus with normal histological appearance. Moreover, the animal presented high levels of testosterone.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bitch; Pseudo-hermaphrodite; Male; Canina; Pseudo-hermafrodita; Masculino.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000300032

Morphologic and morphometric analysis of testis of Pseudis limellum (Cope, 1862) (Anura, Hylidae) during the reproductive cycle in the Pantanal, Brazil
Provedor de dados: Biocell
Autores: Ferreira,Adelina; Mehanna,Mahmoud; Prado,Cynthia P. A.
The spermatogenesis of Pseudis limellum, from the Southern Pantanal, Brazil, was studied from July 1995 to May 1996, through histological sections of the testis. The cells could be differentiated as: primary spermatogonia, large cells, generally with bilobed nucleus; secondary spermatogonia, smaller cells, with darker cytoplasm, chromatin of radial form; primary and secondary spermatocytes, differentiated according to the different stages of the nucleus during the successive cells divisions. Furthermore, we observed cells in process of morphologic differentiation: rounded spermatids much smaller, with nucleus containing chromatin in compacting process and cytoplasm reduction; elongated spermatids, generally parallel organized in well defined bundles, with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spermatogenesis; Male; Amphibia; Climatic influences.
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452008000200004

New records, synonymy and description of the male of Culicoides horticola Lutz, 1913 (Diptera: Ceratopogonidae)
Provedor de dados: Biota Neotropica
Autores: Felippe-Bauer,Maria Luiza; Spinelli,Gustavo Ricardo.
The male of Culicoides horticola Lutz, 1913 is described and illustrated from specimens collected in the Department of Madre de Dios, Peru, and in the State of Rio de Janeiro, Brazil. Culicoides bachmanni Spinelli, 2005 is considered as a junior synonym of C. horticola. Previous citations and descriptions of C. horticola are discussed, and the species is firstly recorded from Peru and biting humans.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Culicoides horticola; Male; Synonymy; New records.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000100003

Preliminar report on the presence of tegumentar glands in the thorax of Meliponinae bees (Hymenoptera, Apidae)
Provedor de dados: Brazilian Journal of Biology
Autores: CRUZ-LANDIM,C.; REGINATO,R. D.
This is a first report on the presence of glandular cells in the lateral tegument of the mesothorax of Meliponinae bees. The cells are of the insect class III glandular cells and are present in queens, workers and males. The glands are more developed in queens than in workers, and in workers than in males.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mesothorax; Glands; Tegument; Male; Worker; Queen.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000100021

HPV infection, risk factors and viral load among Mexican male college students
Provedor de dados: Brazilian Journal of Infectious Diseases
Autores: Vera-Uehara,Carmina; Sánchez-Alemán,Miguel Angel; Uribe-Salas,Felipe Javier; Ramos-Castañeda,José; Olamendi-Portugal,Ma. Leónidez; Conde-Glez,Carlos Jesús.
Objectives:To determine the prevalence of HPV and the risky sexual behaviors associated to it in a sample of male college students, taking into account genotype and viral load.Methods:From 2002 to 2003, male students from the Autonomous University of Morelos State completed a questionnaire and provided self-collected genital samples to detect and quantify HPV. We performed a bivariate and a multivariate logistic regression analysis to identify correlates associated with the infection and to assess the viral load as a function of the viral infecting type. The fragments of β-globin gene and L1 of HPV, were amplified, purified and cloned, to evaluate viral load.Results:Among 253 subjects, HPV prevalence was 19.4%, and HPV16 was the most common subtype....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HPV; Viral load; Contraceptive pills; Risky sexual behaviors; Male; Students.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000100071

Adult male circumcision with a circular stapler versus conventional circumcision: A prospective randomized clinical trial
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Jin,X.D.; Lu,J.J.; Liu,W.H.; Zhou,J.; Yu,R.K.; Yu,B.; Zhang,X.J.; Shen,B.H.
Male circumcision is the most frequently performed procedure by urologists. Safety and efficacy of the circumcision procedure requires continual improvement. In the present study, we investigated the safety and efficacy of a new male circumcision technique involving the use of a circular stapler. In total, 879 consecutive adult male patients were randomly divided into 2 groups: 441 underwent stapler circumcision, and 438 underwent conventional circumcision. The operative time, pain score, blood loss volume, healing time, treatment costs, and postoperative complications were compared between the two groups. The operative time and blood loss volume were significantly lower in the stapler group than in the conventional group (6.8 ± 3.1 vs 24.2 ± 3.2 min and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Circumcision; Complication; Male; Stapler.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000600577

Fertility of male adult rats submitted to forced swimming stress
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Mingoti,G.Z.; Pereira,R.N.; Monteiro,C.M.R.
We investigated whether stress interferes with fertility during adulthood. Male Wistar rats (weighing 220 g in the beginning of the experiment) were forced to swim for 3 min in water at 32ºC daily for 15 days. Stress was assessed by the hot-plate test after the last stressing session. To assess fertility, control and stressed males (N = 15 per group) were mated with sexually mature normal females. Males were sacrificed after copulation. Stress caused by forced swimming was demonstrated by a significant increase in the latency of the pain response in the hot-plate test (14.6 ± 1.25 s for control males vs 26.0 ± 1.53 s for stressed males, P = 0.0004). No changes were observed in body weight, testicular weight, seminal vesicle weight, ventral prostate weight...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Forced swimming stress; Male; Fertility; Rat; Spermatogonia.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000500016