نتایج جستجو برای: coitus

تعداد نتایج: 4978  

Journal: :Nursing science quarterly 2009
Eva K Mårtenson Astrid M Fägerskiöld Ingrid V Runeson Carina M Berterö

In this column the authors discuss the ethics of information exchange in nursing practice with children. Five concepts identified in three Swedish grounded theory studies and a content analysis that used the theoretical framework of ethical demand were analyzed. A simultaneous concept analysis found five related concepts: being interconnected, acting according to accepted procedure, completenes...

Journal: :Child development 2011
Kathryn P Harden Jane Mendle

Academic achievement and cognitive ability have been shown to predict later age at first sexual intercourse. Using a sample of 536 same-sex twin pairs who were followed longitudinally from adolescence to early adulthood, this study tested whether relations between intelligence, academic achievement, and age at first sex were due to unmeasured genetic and environmental differences between famili...

Journal: :Neuro endocrinology letters 2012
Antonín Dolezal Zita Skorepova-Honzlova Karel Jelen

In the drawing of coitus by Leonardo da Vinci are pictured the contemporary hypotheses regarding this act. The authors analyze the mamillaruteral connection depicted by the artist and grow up to believe that this is a hypothetical kiveris vena, female vein described by Anatomist Master Nicolai Physicus from the Salerno School. The Hebrew roots were found in the name. The connection is described...

Journal: :British journal of preventive & social medicine 1953
J R GIBSON T DOUGRAY

Because dates of coitus, ovulation, and fertilization are usually unknown, examination of the duration of gestation in a large series of women is necessarily based on the period of amenorrhoea from onset of menstruation to birth. The considerable variation in this period is due partly to variation in the interval between onset of menstruation and ovulation, and partly to variation in the time b...

Journal: :Cancer research 1973
G D Wilbanks

With various human clinical, epidemiological, and ex perimental data together with basic carcinogenesis ex perimentation, a working hypothesis of the development of cervical cancer is presented. Initiation may involve a carcinogen (perhaps herpesvirus type 2) altering the sus ceptible metaplastic cervical cell that is active in adoles cence and during pregnancy. Promotion by factors per haps re...

Journal: :The Journal of Biophysical and Biochemical Cytology 1957
Alan R. Muir

Prenatal and postnatal cardiac muscle from rabbits has been studied by electron microscopy, after osmium fixation and methacrylate embedding. The observations showed that 1. Cell membranes divide the muscle into cellular units from the youngest embryo which was studied (9(1/2) days after coitus) until the adult state. 2. The embryonic muscle cells contain only one nucleus, whereas the adult cel...

2014
Shivaprakash Sosale C. S. Ravikiran R. Sujatha

The Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome is characterized by either isolated uterovaginal agenesis or associated with other organ anomalies in genetic women with normal development of secondary sexual characteristics. It affects at least 1 out of 4500 Women. We report an uncommonly seen unique sub type of MRKH syndrome, co-existing with imperforate anus and rectovaginal fistula (RVF) ...

Journal: :British medical journal 1973
D W Hamilton

A series of 32 males who discontinued all forms of contraception following bilateral vasectomy and irrigation of each vas with 2.5 ml of 1/1000 solution of euflavine, have been followed for one year. During this period in which coitus continued with the same frequency as before vasectomy, no pregnancy has resulted. Semen specimens examined shortly after vasectomy in all subjects showed "moderat...

Journal: :South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde 1987
A L Brink H J Odendaal

In a prospective study 90 patients who had confirmed abruption of the placenta were compared with a control group. Significantly more patients who had abruptio placentae were unmarried, smoked cigarettes, received no antenatal care, had coitus within the 48 hours preceding delivery, developed intrapartum hypertension and had a lower ponderal index than the controls. More patients with abruptio ...

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