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https://www.readbyqxmd.com/read/28213630/religious-coping-with-sexual-stigma-in-young-adults-with-same-sex-attractions
#1
Shauna K Lauricella, Russell E Phillips, Eric F Dubow
The present study assessed religious coping with sexual stigma in 260 young adults with same-sex attractions. Although the majority of the sample rarely utilized religious coping, a significant minority of participants frequently turned to religion to deal with sexual stigma. Controlling for demographic and general religious variables, positive religious coping (e.g., connecting with God) was associated with beneficial outcomes, and negative religious coping (e.g., frustrations with one's spiritual community) related to poorer adjustment to sexual stigma...
February 17, 2017: Journal of Religion and Health
https://www.readbyqxmd.com/read/28211217/breast-shape-ptosis-as-a-marker-of-a-woman-s-breast-attractiveness-and-age-evidence-from-poland-and-papua
#2
Agata Groyecka, Agnieszka Żelaźniewicz, Michał Misiak, Maciej Karwowski, Piotr Sorokowski
OBJECTIVES: A women's breast is a sex-specific and aesthetic bodily attribute. It is suggested that breast morphology signals maturity, health, and fecundity. The perception of a woman's attractiveness and age depends on various cues, such as breast size or areola pigmentation. Conducted in Poland and Papua, the current study investigated how breast attractiveness, and the further estimate of a woman's age based on her breast's appearance, is affected by the occurrence of breast ptosis (ie, sagginess, droopiness)...
February 17, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/28211207/social-amoebae-mating-types-do-not-invest-unequally-in-sexual-offspring
#3
Tracy E Douglas, David C Queller, Joan E Strassmann
Unequal investment by different sexes in their progeny is common and includes differential investment in the zygote and differential care of the young. The social amoeba Dictyostelium discoideum has a sexual stage in which isogamous cells of any two of the three mating types fuse to form a zygote which then attracts hundreds of other cells to the macrocyst. The latter cells are cannibalized and so make no genetic contribution to reproduction. Previous literature suggests that this sacrifice may be induced in cells of one mating type by cells of another, resulting in a higher than expected production of macrocysts when the inducing type is rare and a giving a reproductive advantage to this social cheat...
February 17, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/28203244/pistil-transcriptome-analysis-to-disclose-genes-and-gene-products-related-to-aposporous-apomixis-in-hypericum-perforatum-l
#4
Giulio Galla, Sara Zenoni, Linda Avesani, Lothar Altschmied, Paride Rizzo, Timothy F Sharbel, Gianni Barcaccia
Unlike sexual reproduction, apomixis encompasses a number of reproductive strategies, which permit maternal genome inheritance without genetic recombination and syngamy. The key biological features of apomixis are the circumvention of meiosis (i.e., apomeiosis), the differentiation of unreduced embryo sacs and egg cells, and their autonomous development in functional embryos through parthenogenesis, and the formation of viable endosperm either via fertilization-independent means or following fertilization with a sperm cell...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28193269/how-flies-are-flirting-on-the-fly
#5
Courtney Eichorn, Michael Hrabar, Emma C Van Ryn, Bekka S Brodie, Adam J Blake, Gerhard Gries
BACKGROUND: Flies have some of the most elaborate visual systems in the Insecta, often featuring large, sexually dimorphic eyes with specialized "bright zones" that may have a functional role during mate-seeking behavior. The fast visual system of flies is considered to be an adaptation in support of their advanced flight abilities. Here, we show that the immense processing speed of the flies' photoreceptors plays a crucial role in mate recognition. RESULTS: Video-recording wing movements of abdomen-mounted common green bottle flies, Lucilia sericata, under direct light at 15,000 frames per second revealed that wing movements produce a single, reflected light flash per wing beat...
February 14, 2017: BMC Biology
https://www.readbyqxmd.com/read/28188760/long-term-clinical-efficacy-and-safety-profile-of-transurethral-resection-of-prostate-vs-plasmakinetic-resection-of-the-prostate-for-benign-prostatic-hyperplasia
#6
Zhe Liu, Yuan Wei Li, Wan Rui Wu, Qiang Lu
OBJECTIVE: To investigate differences on clinical efficacy, complications and safety profile between transurethral resection of prostate (TURP) and bipolar plasmakinetic resection of the prostate (PKRP) for benign prostatic hyperplasia (BPH). METHODS: 690 patients of BPH were recruited from May 2008 to May 2011 and divided into TURP group and PKRP group, IPSS, QoL, PVR, Qmax, complications, IIEF-5 and retrograde ejaculation were used for evaluation of clinical effective, safety and sexual function between two groups...
February 8, 2017: Urology
https://www.readbyqxmd.com/read/28176027/prenatal-influences-on-human-sexual-orientation-expectations-versus-data
#7
S Marc Breedlove
In non-human vertebrate species, sexual differentiation of the brain is primarily driven by androgens such as testosterone organizing the brains of males in a masculine fashion early in life, while the lower levels of androgen in developing females organize their brains in a feminine fashion. These principles may be relevant to the development of sexual orientation in humans, because retrospective markers of prenatal androgen exposure, namely digit ratios and otoacoustic emissions, indicate that lesbians, on average, were exposed to greater prenatal androgen than were straight women...
February 7, 2017: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/28173762/binding-affinity-of-five-pbps-to-ostrinia-sex-pheromones
#8
Tiantao Zhang, Yaqi Sun, Kevin W Wanner, Brad S Coates, Kanglai He, Zhenying Wang
BACKGROUND: Pheromone binding proteins (PBPs) of male Lepidoptera function in chemical communication, mate attraction and recognition. Directional selection was previously predicted between PBP3 orthologs of Ostrinia furnacalis and Ostrinia nubilalis were interpreted as being involved in sexual isolation. RESULTS: In vitro assays show that recombinant male OfurPBP3 bound O. furnacalis sex pheromones, Z-12-tetradecenyl acetate (Z12-14:OAc) and E-12-tetradecenyl acetate (E12-14:OAc), as well as to ECB pheromones Z11- and E11-14:OAc...
February 7, 2017: BMC Molecular Biology
https://www.readbyqxmd.com/read/28168028/sex-specific-responses-to-territorial-intrusions-in-a-communication-network-evidence-from-radio-tagged-great-tits
#9
Lysanne Snijders, Kees van Oers, Marc Naguib
Signals play a key role in the ecology and evolution of animal populations, influencing processes such as sexual selection and conflict resolution. In many species, sexually selected signals have a dual function: attracting mates and repelling rivals. Yet, to what extent males and females under natural conditions differentially respond to such signals remains poorly understood, due to a lack of field studies that simultaneously track both sexes. Using a novel spatial tracking system, we tested whether or not the spatial behavior of male and female great tits (Parus major) changes in relation to the vocal response of a territorial male neighbor to an intruder...
February 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28163325/social-calls-provide-novel-insights-into-the-evolution-of-vocal-learning
#10
Kendra B Sewall, Anna M Young, Timothy F Wright
Learned song is among the best-studied models of animal communication. In oscine songbirds, where learned song is most prevalent, it is used primarily for intrasexual selection and mate attraction. Learning of a different class of vocal signals, known as contact calls, is found in a diverse array of species, where they are used to mediate social interactions among individuals. We argue that call learning provides a taxonomically rich system for studying testable hypotheses for the evolutionary origins of vocal learning...
October 2016: Animal Behaviour
https://www.readbyqxmd.com/read/28155897/predictors-of-facial-attractiveness-and-health-in-humans
#11
Yong Zhi Foo, Leigh W Simmons, Gillian Rhodes
Facial attractiveness has been suggested to provide signals of biological quality, particularly health, in humans. The attractive traits that have been implicated as signals of biological quality include sexual dimorphism, symmetry, averageness, adiposity, and carotenoid-based skin colour. In this study, we first provide a comprehensive examination of the traits that predict attractiveness. In men, attractiveness was predicted positively by masculinity, symmetry, averageness, and negatively by adiposity. In women, attractiveness was predicted positively by femininity and negatively by adiposity...
February 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28145591/staying-with-the-young-enhances-the-fathers-attractiveness-in-burying-beetles
#12
Johanna Chemnitz, Nadiia Bagrii, Manfred Ayasse, Sandra Steiger
Studying the relationship between parental and mating effort helps us to understand the evolution of parental care and, consequently, has been the subject of many theoretical and empirical investigations. Using burying beetles as a model, we found no correlation between the intensity of a sexual signal (sex pheromone quantity) and the amount of care provided by males. However, males that were given the opportunity to breed and care for young went on to produce a higher amount of their sexual signal and attracted three times more females in the field than control males that were not given the opportunity to breed...
February 1, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28141596/comparison-of-mycoplasma-ies-mycofast-revolution-and-mycoplasma-ist2-to-detect-genital-mycoplasmas-in-clinical-samples
#13
Tiziana D'Inzeo, Giulia De Angelis, Barbara Fiori, Giulia Menchinelli, Flora Marzia Liotti, Grazia Angela Morandotti, Flavio De Maio, Domenico Nagel, Marco Antonaci, Maurizio Sanguinetti, Teresa Spanu
INTRODUCTION: Culture is regarded as the gold standard for the detection of genital mycoplasma in clinical samples. Commercially available diagnostic kits, based on liquid broth cultures, provide interesting alternatives to conventional culture. We assessed the laboratory performances of Mycoplasma IES (IES), the Mycofast Revolution (REV) and Mycoplasma IST 2 (IST2) compared to A7 agar plates for the detection of Ureaplasma urealyticum and Mycoplasma hominis in clinical samples. METHODOLOGY: From April to July 2013, endocervical or vaginal samples were collected from sexually active women with abnormal vaginal discharge...
January 30, 2017: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/28139095/raspberry-ketone-supplements-promotes-early-sexual-maturation-in-male-queensland-fruit-fly-bactrocera-tryoni-diptera-tephritidae
#14
Humayra Akter, Vivian Mendez, Renata Morelli, Jeanneth Pérez, Phillip W Taylor
BACKGROUND: Raspberry ketone (RK) is highly attractive to sexually mature, but not immature, males of many Bactrocera species, including Queensland fruit fly ('Qfly', Bactrocera tryoni), and acts as a metabolic enhancer in a wide diversity of animals. We considered the possibility that, as a metabolic enhancer, RK in adult diet might accelerate sexual maturation of male Qflies. RESULTS: Recently emerged adult Qfly males (0-24 hrs old) were exposed to RK-treated food for 48 hours and were then provided only sugar and water...
January 31, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28130745/sex-attracts-neural-correlates-of-sexual-preference-under-cognitive-demand
#15
Kirsten Jordan, Katrin Wieser, Isabel Methfessel, Peter Fromberger, Peter Dechent, Jürgen L Müller
Neurofunctional correlates of sexual arousal are of interest in basic research as well as in clinical science. In forensic psychiatry, it is important to use designs which are potentially robust against susceptibility to manipulation or deception. We tested a new design to measure neurofunctional correlates of sexual preference. Twenty-two healthy heterosexual men had to solve a mental rotation task while sexually preferred or non-preferred distractors were presented simultaneously. With this challenging active task, subjects' possibility to manipulate their response to the sexual stimuli should be lower than in easier tasks and in passive designs...
January 27, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28125247/development-and-validation-of-a-tailored-measure-of-body-image-for-pregnant-women
#16
Brittany Watson, Matthew Fuller-Tyszkiewicz, Jaclyn Broadbent, Helen Skouteris
This study developed and validated a quantitative measure of body image specifically designed for pregnancy-the Body Image in Pregnancy Scale (BIPS). Scale development was guided by qualitative data from a series of studies exploring the meaning of women's body image experiences during pregnancy, and previously established body image measures. Exploratory factor analysis for a sample of pregnant women (n = 251) indicated good fit for a 36-item scale with seven factors: preoccupation with physical appearance, dissatisfaction with physical strength, dissatisfaction with facial features, sexual attractiveness, prioritizing physical appearance over body functioning, appearance-related behavioral avoidance, and dissatisfaction with body parts...
January 26, 2017: Psychological Assessment
https://www.readbyqxmd.com/read/28120945/imorin-a-sexual-attractiveness-pheromone-in-female-red-bellied-newts-cynops-pyrrhogaster
#17
Tomoaki Nakada, Fumiyo Toyoda, Kouhei Matsuda, Takashi Nakakura, Itaru Hasunuma, Kazutoshi Yamamoto, Satomi Onoue, Makoto Yokosuka, Sakae Kikuyama
The male red-bellied newt (Cynops pyrrhogaster) approaches the female's cloaca prior to performing any courtship behaviour, as if he is using some released substance to gauge whether she is sexually receptive. Therefore, we investigated whether such a female sexual attractiveness pheromone exists. We found that a tripeptide with amino acid sequence Ala-Glu-Phe is secreted by the ciliary cells in the epithelium of the proximal portion of the oviduct of sexually developed newts and confirmed that this is the major active substance in water in which sexually developed female newts have been kept...
January 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28116068/cryptic-female-strawberry-poison-frogs-experience-elevated-predation-risk-when-associating-with-an-aposematic-partner
#18
Julia Carolina Segami Marzal, Andreas Rudh, Björn Rogell, Anders Ödeen, Hanne Løvlie, Charlotte Rosher, Anna Qvarnström
Population divergence in sexual signals may lead to speciation through prezygotic isolation. Sexual signals can change solely due to variation in the level of natural selection acting against conspicuousness. However, directional mate choice (i.e., favoring conspicuousness) across different environments may lead to gene flow between populations, thereby delaying or even preventing the evolution of reproductive barriers and speciation. In this study, we test whether natural selection through predation upon mate-choosing females can favor corresponding changes in mate preferences...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28093665/disproportionality-and-disparities-among-sexual-minority-youth-in-custody
#19
Bianca D M Wilson, Sid P Jordan, Ilan H Meyer, Andrew R Flores, Lara Stemple, Jody L Herman
Research indicates that sexual minority youth are disproportionately criminalized in the U.S. and subjected to abusive treatment while in correctional facilities. However, the scope and extent of disparities based on sexual orientation remains largely overlooked in the juvenile justice literature. This study, based on a nationally representative federal agency survey conducted in 2012 (N = 8785; 9.9% girls), reveals that 39.4% of girls and 3.2% of boys in juvenile correctional facilities identified as lesbian, gay, or bisexual...
January 16, 2017: Journal of Youth and Adolescence
https://www.readbyqxmd.com/read/28089703/to-each-its-own-gender-differences-in-affective-autonomic-and-behavioral-responses-to-same-sex-and-opposite-sex-visual-sexual-stimuli
#20
Michela Sarlo, Giulia Buodo
A large body of research on gender differences in response to erotic stimuli has focused on genital and/or subjective sexual arousal. On the other hand, studies assessing gender differences in emotional psychophysiological responding to sexual stimuli have only employed erotic pictures of male-female couples or female/male nudes. The present study aimed at investigating differences between gynephilic men and androphilic women in emotional responding to visual sexual stimuli depicting female-male, female-female and male-male couples...
January 13, 2017: Physiology & Behavior
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