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Polygamy

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https://www.readbyqxmd.com/read/29743378/horizontal-transmission-of-the-ectoparasite-gyrodactylus-arcuatus-monogenea-gyrodactylidae-to-the-next-generation-of-the-three-spined-stickleback-gasterosteus-aculeatus
#1
Jaakko Lumme, Marek S Zietara
In the parthenogenetic monogeneans of the genus Gyrodactylus Nordmann, 1832, the genetic diversity within or between hosts is determined by the relative roles of lateral transmission and clonal propagation. Clonality and limited transmission lead to high-amplitude metapopulation dynamics and strong genetic drift. In Baltic populations of the three-spined stickleback Gasterosteus aculeatus Linnaeus, the local mitochondrial diversity of Gyrodactylus arcuatus Bychowsky, 1933 is very high, and spatial differentiation weak...
April 19, 2018: Folia Parasitologica
https://www.readbyqxmd.com/read/29741594/early-adopters-of-hiv-preexposure-prophylaxis-in-a-population-based-combination-prevention-study-in-rural-kenya-and-uganda
#2
Catherine A Koss, James Ayieko, Florence Mwangwa, Asiphas Owaraganise, Dalsone Kwarisiima, Laura B Balzer, Albert Plenty, Norton Sang, Jane Kabami, Theodore D Ruel, Douglas Black, Carol S Camlin, Craig R Cohen, Elizabeth A Bukusi, Tamara D Clark, Edwin D Charlebois, Maya L Petersen, Moses R Kamya, Diane V Havlir
Background: Global guidelines recommend preexposure prophylaxis (PrEP) for individuals with substantial HIV risk. Data on PrEP uptake in sub-Saharan Africa outside of clinical trials are limited. We report on "early adopters" of PrEP in SEARCH, an ongoing population-based study in rural Uganda and Kenya. Methods: Following community mobilization and education on PrEP, population-based HIV testing was conducted. HIV-uninfected adults were offered PrEP based on an empirically-derived HIV risk score or an individual's self-identified HIV risk (if not identified by score)...
May 5, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29570262/polygamy-sexual-behavior-in-a-population-under-risk-for-prostate-cancer-diagnostic-an-observational-study-from-the-black-sea-region-in-turkey
#3
Abdullah Cirakoglu, Erdal Benli, Ahmet Yuce
AIM: Although prostate cancer (PCa) is the most common cancer type in men, a replaceable risk factor has not yet been established. In our study, we assessed the relationship between the number of sexual partners, age of first sexual experience and age of first masturbation and prostate cancer incidence. MATERIALS AND METHODS: In Ordu University Department of Urology between January 2013 and September 2016, in PSA elevation and rectal examination, patients with prostate biopsy were evaluated due to nodule palpation in the prostate...
March 23, 2018: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29550815/incidence-and-risk-profile-of-dementia-in-the-regions-of-middle-east-and-north-africa
#4
Devender Bhalla, Elham Lotfalinezhad, Fatemah Amini, Mohsen Salmannejad, Vahid Reza Borhani Nezhad, Seyedeh Fatemeh Rezai Kooshalshah, Ahmed Delbari, Reza Fadayevatan, I Irmansyah, Abdalla Abdelrahman, Nanda Kumar Bhatta, Kurosh Gharagozli
BACKGROUND: The risk of dementia is reported as "epidemic" and "looming" over the Middle East and North Africa (MENA) region. For this, we performed a multi-language review and feasible analysis on the incidence of dementia to offer apt conclusions. METHODS: Totally, 3 databases (Magiran, Scientific Information Database, and PubMed) and 1 non-database source (Google) were searched in French, English, and Persian by using specific keywords and their combinations...
March 14, 2018: Neuroepidemiology
https://www.readbyqxmd.com/read/29521163/polygamy-piousness-and-the-practice-of-medicine-understanding-brigham-young-and-the-predominance-of-female-medical-providers-in-early-utah
#5
Samuel R Donnenfeld
The nineteenth century Mormon Prophet, Brigham Young, has long been lauded as progressive for sending dozens of Mormon women from the Utah territory to receive a formal medical education at The Women's Medical College of Pennsylvania. This manuscript comes to a contrary conclusion through close reading of diaries and journals created by these same women and the public speeches of the Prophet himself. These texts have historically been held up as evidence of Prophet Young's encouragement of women as physicians...
May 2018: Journal of Medical Biography
https://www.readbyqxmd.com/read/29502504/structured-spatial-modeling-and-mapping-of-domestic-violence-against-women-of-reproductive-age-in-rwanda
#6
Faustin Habyarimana, Temesgen Zewotir, Shaun Ramroop
The main objective of this study was to assess the risk factors and spatial correlates of domestic violence against women of reproductive age in Rwanda. A structured spatial approach was used to account for the nonlinear nature of some covariates and the spatial variability on domestic violence. The nonlinear effect was modeled through second-order random walk, and the structured spatial effect was modeled through Gaussian Markov Random Fields specified as an intrinsic conditional autoregressive model. The data from the Rwanda Demographic and Health Survey 2014/2015 were used as an application...
March 1, 2018: Journal of Interpersonal Violence
https://www.readbyqxmd.com/read/29467269/polygamy-or-subdioecy-the-impact-of-diallelic-self-incompatibility-on-the-sexual-system-in-fraxinus-excelsior-oleaceae
#7
Pierre Saumitou-Laprade, Philippe Vernet, Arnaud Dowkiw, Sylvain Bertrand, Sylvain Billiard, BĂ©atrice Albert, Pierre-Henri Gouyon, Mathilde Dufay
How flowering plants have recurrently evolved from hermaphroditism to separate sexes (dioecy) is a central question in evolutionary biology. Here, we investigate whether diallelic self-incompatibility (DSI) is associated with sexual specialization in the polygamous common ash ( Fraxinus excelsior ), which would ultimately facilitate the evolution towards dioecy. Using interspecific crosses, we provide evidence of strong relationships between the DSI system and sexual phenotype. The reproductive system in F...
February 28, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29299300/an-integrative-mating-system-assessment-of-a-nonmodel-economically-important-pacific-rockfish-sebastes-melanops-reveals-nonterritorial-polygamy-and-conservation-implications-for-a-large-species-flock
#8
Kurt W Karageorge, Raymond R Wilson
Characterizing the mating systems of long-lived, economically important Pacific rockfishes comprising the viviparous Sebastes species flock is crucial for their conservation. However, direct assignment of mating success to sires is precluded by open, offshore populations and high female fecundity. We addressed this challenge by integrating paternity-assigned mating success of females with the adult sex ratio (ASR) of the population, male evolutionary responses to receptive females, and reproductive life history traits-in the framework of sexual selection theory-to assess the mating system of Sebastes melanops ...
December 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29295035/social-determinants-of-domestic-violence-among-saudi-married-women-in-riyadh-kingdom-of-saudi-arabia
#9
ALJohara M Alquaiz, Maha Almuneef, Ambreen Kazi, Aljohara Almeneessier
Intimate partner violence is a worldwide public health problem. The objectives of this study were to measure the prevalence and types of domestic violence, and to explore the association between social determinants (sociodemographic factors, husband-related factors, and social support) and violence against women by their intimate partner (husband). We conducted a cross-sectional survey in 18 randomly selected primary health care centers and 13 private institutions (teaching institutes, government offices, social welfare organizations) in Riyadh, Saudi Arabia...
December 1, 2017: Journal of Interpersonal Violence
https://www.readbyqxmd.com/read/29238561/precopulatory-but-not-postcopulatory-male-reproductive-traits-diverge-in-response-to-mating-system-manipulation-in-drosophila-melanogaster
#10
Kristina U Wensing, Mareike Koppik, Claudia Fricke
Competition between males creates potential for pre- and postcopulatory sexual selection and conflict. Theory predicts that males facing risk of sperm competition should evolve traits to secure their reproductive success. If those traits are costly to females, the evolution of such traits may also increase conflict between the sexes. Conversely, under the absence of sperm competition, one expectation is for selection on male competitive traits to relax thereby also relaxing sexual conflict. Experimental evolution studies are a powerful tool to test this expectation...
December 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29021319/the-purging-of-deleterious-mutations-in-simple-and-complex-mating-environments
#11
Julie Colpitts, Darla Williscroft, Harmandeep Singh Sekhon, Howard D Rundle
There is a general expectation that sexual selection should align with natural selection to aid the purging of deleterious mutations, yet experiments comparing purging under monogamy versus polygamy have provided mixed results. Recent studies suggest that this may be because the simplified mating environments used in these studies reduce the benefit of sexual selection through males and hamper natural selection through females by increasing costs associated with sexual conflict. To test the effect of the physical mating environment on purging, we use experimental evolution in Drosophila melanogaster to track the frequency of four separate deleterious mutations in replicate populations that experience polygamy under either a simple or structurally complex mating arena while controlling for arena size...
October 2017: Biology Letters
https://www.readbyqxmd.com/read/28884796/the-evolution-of-between-species-reproductive-interference-capability-under-different-within-species-mating-regimes
#12
Daisuke Kyogoku, Teiji Sota
Sexual selection sometimes favors male traits that benefit their bearers, but harm their mates. The harmful effects of male traits may also extend to females of other species via heterospecific mating interactions. This could affect the coexistence of closely related species during secondary contact. We examined the evolution of the interspecific interfering capability of a beetle (Callosobruchus chinensis) with a congener (C. maculatus) using C. chinensis males reared under conditions of monogamy and polygamy for 17 generations...
November 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28840604/environmental-complexity-and-the-purging-of-deleterious-alleles
#13
Amardeep Singh, Aneil F Agrawal, Howard D Rundle
Sexual interactions among adults can generate selection on both males and females with genome-wide consequences. Sexual selection through males is one component of this selection that has been argued to play an important role in purging deleterious alleles. A common technique to assess the influence of sexual selection is by a comparison of experimental evolution under enforced monogamy versus polygamy. Mixed results from past studies may be due to the use of highly simplified laboratory conditions that alter the nature of sexual interactions...
November 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28555834/effects-of-breeder-turnover-and-harvest-on-group-composition-and-recruitment-in-a-social-carnivore
#14
David E Ausband, Michael S Mitchell, Lisette P Waits
Breeder turnover can influence population growth in social carnivores through changes to group size, composition and recruitment. Studies that possess detailed group composition data that can provide insights about the effects of breeder turnover on groups have generally been conducted on species that are not subject to recurrent annual human harvest. We wanted to know how breeder turnover affects group composition and how harvest, in turn, affects breeder turnover in cooperatively breeding grey wolves (Canis lupus Linnaeus 1758)...
September 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28508402/risk-factors-for-human-immunodeficiency-virus-among-blood-donors-in-cameroon-evidence-for-the-design-of-an-africa-specific-donor-history-questionnaire
#15
Claude T Tagny, Georges Nguefack-Tsague, Diderot Fopa, Celestin Ashu, Estel Tante, Pauline Ngo Balogog, Olivier Donfack, Dora Mbanya, Syria Laperche, Edward Murphy
BACKGROUND: In sub-Saharan Africa improving the deferral of at-risk blood donors would be a cost-effective approach to reducing transfusion-transmitted human immunodeficiency virus (HIV) infections. We performed a pilot case-control study to identify the risk factors for HIV infection and to develop an adapted donor history questionnaire (DHQ) for sub-Saharan Africa. STUDY DESIGN AND METHODS: We recruited 137 HIV-positive donors (cases) and 256 HIV-negative donors (controls) and gathered risk factor data using audio computer-assisted self-interview...
August 2017: Transfusion
https://www.readbyqxmd.com/read/28481143/women-s-narratives-of-living-in-polygamous-marriages-rural-malawian-experience-distilled-and-preserved-in-poetic-constructions
#16
April L Yerges, Patricia E Stevens, Lucy Mkandawire-Valhmu, Wendy Bauer, Thokozani Ng'ombe Mwenyekonde, Lance S Weinhardt, Loren W Galvao
Polygamy in sub-Saharan Africa has been linked to poverty, infant mortality, and HIV; however, it is unknown how interpersonal dynamics within polygamous households may influence population health outcomes. Findings from this postcolonial feminist study derive from interview data in a larger mixed-methods study in rural Malawi. We used thematic narrative analysis to probe 25 women's stories and applied an arts-based research technique, poetic construction, to present the results. Participants' evocative expressions, distilled and preserved in poetic form, illustrate themes of perseverance, grief, agency, and reflection...
August 2017: Health Care for Women International
https://www.readbyqxmd.com/read/28442724/entanglement-distribution-in-multi-particle-systems-in-terms-of-unified-entropy
#17
Yu Luo, Fu-Gang Zhang, Yongming Li
We investigate the entanglement distribution in multi-particle systems in terms of unified (q, s)-entropy. We find that for any tripartite mixed state, the unified (q, s)-entropy entanglement of assistance follows a polygamy relation. This polygamy relation also holds in multi-particle systems. Furthermore, a generalized monogamy relation is provided for unified (q, s)-entropy entanglement in the multi-qubit system.
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28288371/gender-and-other-risk-factors-associated-with-risky-behaviours-among-nigerian-adolescents
#18
Oluyemi O Akanni, Olaide N Koleoso, Anthony A Olashore, Ehigiator O Adayonfo, Adeagbo F Osundina, Olaniyi O Ayilara
Risky behaviours in adolescents, apart from substance use, and their associate factors, have not been thoroughly investigated in Nigeria. Hence, there is a need to study the prevalence of risky behaviours and their relationship with gender and other potential risk factors. Data comprising socio-demographic, risky behaviours, personality traits, religious orientation and substance use were obtained from 300 randomly selected secondary school students. Two risk groups (low and high) based on the number of risky behaviours were determined...
June 2017: Journal of Adolescence
https://www.readbyqxmd.com/read/28250991/polygamy-and-risk-of-coronary-artery-disease-in-men-undergoing-angiography-an-observational-study
#19
Amin Daoulah, Amir Lotfi, Mushabab Al-Murayeh, Salem Al-Kaabi, Salem M Al-Faifi, Osama E Elkhateeb, Mohamed N Alama, Ahmad S Hersi, Ciaran M Dixon, Waleed Ahmed, Mohamed Al-Shehri, Ali Youssef, Ahmed Moustafa Elimam, Ayman S Abougalambou, Waheed Murad, Alawi A Alsheikh-Ali
Epidemiologic evidence suggests a link between psychosocial risk factors such as marital status and coronary artery disease (CAD). Polygamy (multiple concurrent wives) is a distinct marital status practiced in many countries in Asia and the Middle East, but its association with CAD is not well defined. We conducted a multicenter, observational study of consecutive patients undergoing coronary angiography during the period from April 1, 2013, to March 30, 2014. Of 1,068 enrolled patients, 687 were married men...
2017: International Journal of Vascular Medicine
https://www.readbyqxmd.com/read/27974519/postcopulatory-sexual-selection-influences-baculum-evolution-in-primates-and-carnivores
#20
Matilda Brindle, Christopher Opie
The extreme morphological variability of the baculum across mammals is thought to be the result of sexual selection (particularly, high levels of postcopulatory selection). However, the evolutionary trajectory of the mammalian baculum is little studied and evidence for the adaptive function of the baculum has so far been elusive. Here, we use Markov chain Monte Carlo methods implemented in a Bayesian phylogenetic framework to reconstruct baculum evolution across the mammalian class and investigate the rate of baculum length evolution within the primate order...
December 14, 2016: Proceedings. Biological Sciences
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