منابع مشابه
Evolution: Sex or Survival
A classic paradox in sexual selection is how sexual traits under strong directional selection maintain underlying genetic variation. A new study has found that in Soay sheep a trade-off between reproductive success and survival maintains variation in horn size.
متن کاملSurvival of a Neonate after Nine Days without Feeding
A male neonate from a 23 year-old mother by cesarean section without complication in labor or delivery had vomiting from birth for 9 days and lost 400 grams of body weight. He had severe dehydration upon admission to our hospital. After treating his dehydration and assessment of his problem by laboratory tests and radiography we found that he had esophageal atresia without hypoglycemia. We re...
متن کاملMicroarray analysis of endophyte-infected and endophyte-free tall fescue.
Many grasses have mutualistic symbioses with fungi of the family Clavicipitaceae. Tall fescue can harbor the obligate endophyte, Neotyphodium coenophialum that is asexually propagated and transmitted via host seeds. Total RNA was isolated from pseudostems of known endophyte-infected (E+) and endophyte-free (E-) plants and tested in triplicate on the Affymetrix Wheat Genome Array GeneChip and Ba...
متن کاملBurning after sex without a condom
A few months ago, my fiancé and I, after much consideration, decided to stop using condoms and rely only on the Pill as a contraceptive method. Since then, when he ejaculates inside my vagina, I frequently experience a strong burning sensation a few minutes afterward ? varying in both degree and length each time. Could I be allergic to his semen? The pain sometimes subsides if I hold a wet clot...
متن کاملProtecting young people from sex without consent
Over the last decade, a growing body of evidence—much of it the result of Population Council research—has laid to rest any illusion that the young are protected from unwanted sexual advances or forced sex both within and outside of marriage (Erulkar 2004; Bott, Guedes, and Guezmes 2005; Erulkar et al. 2005b; Hallman 2005; Jejeebhoy, Shah, and Thapa 2005; NRC and IM 2005). These studies have est...
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ژورنال
عنوان ژورنال: NZGA: Research and Practice Series
سال: 2007
ISSN: 2463-4751,0110-8581
DOI: 10.33584/rps.13.2006.3107