搜索结果: 1-15 共查到“性科学 pregnancy”相关记录19条 . 查询时间(0.117 秒)
Pleasure, Prophylaxis and Procreation：A Qualitative Analysis of Intermittent Contraceptive Use And Unintended Pregnancy
Intermittent Contraceptive Use pregnancy ambivalence Unintended Pregnancy
2009/9/17
CONTEXT: Although pregnancy ambivalence is consistently associated with poorer contraceptive use, little is known about the sexual, social and emotional dynamics at work in pregnancy ambivalence.
...
Preventing Pregnancy and Improving Health Care Access Among Teenagers：An Evaluation Of the Children's Aid Society-Carrera Program
Preventing Pregnancy Teenagers Health Care Children's Aid Society
2009/9/17
CONTEXT: Despite the recent declines in rates of teenage pregnancy, relatively little is known about the few programs that have been successful in reducing adolescent pregnancy.
METHODS: Six agenc...
Is There a Causal Link Between Maltreatment And Adolescent Pregnancy? A Literature Review
Maltreatment Literature Review Adolescent Pregnancy
2009/9/17
CONTEXT: Despite a sizable amount of research addressing the relationship between violence and women's reproductive health, it has not been shown whether there is sufficient evidence of a causal link ...
Differences in Teenage Pregnancy Rates Among Five Developed Countries：The Roles of Sexual Activity and Contraceptive Use
Teenage Pregnancy Rates Contraceptive Use Sexual Activity
2009/9/16
Context: Adolescent pregnancy, birth, abortion and sexually transmitted disease (STD) rates are much higher in the United States than in most other developed countries.
Methods: Government statist...
The Effect of Partners' Characteristics on Teenage Pregnancy and Its Resolution
Teenage Pregnancy abortions teenage women
2009/9/16
Context: Although the determinants of whether a teenage woman has a nonmarital pregnancy and how such a pregnancy is resolved have been widely investigated, little is known about the effect of her par...
Using Randomized Designs to Evaluate Client-Centered Programs to Prevent Adolescent Pregnancy
Adolescent Pregnancy Randomized Designs Client-Centered Programs
2009/9/15
Context: Interventions to prevent adolescent pregnancy (primarily curriculum-based programs) have not produced convincing evidence as to their success. Moreover, many evaluation approaches have been i...
Evaluation of the effect of the absence of sperm with rapid and linear progressive motility on subsequent pregnancy rates following intrauterine insemination or in vitro fertilization
Sperm separation motility gradIng linear velocity
2009/2/16
The objective of this study was to investigate the association of rapid and linear progressive motility in seminal and Percoll-separated sperm with the outcome of intrauterine insemination (IUI) and...
Effects of subchronic treatment with cis-platinum on testicular function, fertility, pregnancy outcome, and progeny
Fertility cis-platinum pregnancy outcome progeny
2009/2/10
Cis-platinum-based chemotherapy is known to impair spermatogenesis, but the effects of paternal cis-platinum treatment on the progeny are unknown. To study this effect, sexually mature male Sprague-...
A Retrospective Comparison of Pregnancy Outcome Following Conventional Oocyte Insemination vs Intracytoplasmic Sperm Injection for Isolated Abnormalities in Sperm Morphology Using Strict Criteria
In vitro fertilization zona pellucida subfertile male
2008/12/24
Initial in vitro fertilization (IVF)–embryo transfer studies found poor fertilization and pregnancy rates following conventional fertilization of oocytes when using sperm with <4% normal morpholo...
Successful Pregnancy and Delivery Following Intracytoplasmic Injection of Frozen-Thawed Nonviable Testicular Sperm and Oocyte Activation With Calcium Ionophore
Successful Pregnancy Delivery Intracytoplasmic Injection Frozen-Thawed Nonviable Testicular Sperm Oocyte Activation
2008/12/24
Several pregnancies have been reported using frozenthawed testicular sperm (Fisher et al, 1996; Podsiadly et al, 1996; Khalifeh et al, 1997), stressing the role of sperm motility for successful outc...
The Motility of Epididymal or Testicular Spermatozoa Does Not Directly Affect IVF/ICSI Pregnancy Outcomes
Azoospermia infertility epididymal sperm testicular sperm
2008/12/23
Our objective was to determine whether the presence of motility in surgically obtained sperm samples improves fertilization and pregnancy rates for patients undergoing in vitro fertilization/intracy...
Males With Subnormal Hypo-Osmotic Swelling Test Scores Have Lower Pregnancy Rates Than Those With Normal Scores When Ovulation Induction and Timed Intercourse Is Used as a Treatment for Mild Problems With Sperm Count, Motility, or Morphology
Hypo-osmotic swelling test male infertility timed vaginal intercourse
2008/12/22
This study was designed to evaluate the effectiveness and clinical usefulness of the hypo-osmotic swelling (HOS) test in predicting successful conception in couples in which men with mild male-fac...
The Ratio of Second to Fourth Digit Length in Azoospermic Males Undergoing Surgical Sperm Retrieval: Predictive Value for Sperm Retrieval and on Subsequent Fertilization and Pregnancy Rates in IVF/ICSI Cycles
Hox genes finger length azoospermia surgical sperm retrieval
2008/12/19
The differentiation of the urogenital system and the appendicular skeleton in vertebrates is under the control of Homeobox (Hox) genes. It has been shown that this common control of digit and gonad ...
5-Aza-2'-Deoxycytidine Induces Alterations in Murine Spermatogenesis and Pregnancy Outcome
DNA methylation 5-azacytidine DNMT DNMT1 mouse fertility DNA methyltransferase
2008/12/19
Because of the ability of cytidine analogues, such as 5-aza-2'-deoxycytidine, to incorporate into DNA and lead to decreases in DNA methylation, there has recently been renewed interest in using thes...
The Use of Novel Semen Quality Scores to Predict Pregnancy in Couples With Male-Factor Infertility Undergoing Intrauterine Insemination
Overall semen quality relative quality semen pregnancy score outcome prediction
2008/12/19
The purpose of this study was to determine whether 2 new semen quality (SQ) scores could predict pregnancy in patients undergoing intrauterine insemination (IUI) for male-factor infertility and whet...