搜索结果: 1-15 共查到“性科学 factors”相关记录32条 . 查询时间(0.156 秒)
Alcohol and Drug Use Prevalence and Factors Associated With the Experience of Alcohol Use in Iranian Adolescents
Alcohol Drinking Prevalence Adolescent Iran
2015/9/30
Background: Alcohol and other drugs use is a problem among adolescents leading to numerous physical, social, and educational damages.
Factors Affecting British Teenagers' Contraceptive Use at First Intercourse：The Importance of Partner Communication
British Teenagers First Intercourse Contraceptive Use Partner Communication
2009/9/17
CONTEXT: Despite the growing body of knowledge about teenager's sexual and contraceptive behavior in the United Kingdom, much quantitative work has failed to consider the broader social contexts in wh...
Risk Factors for HIV and Other Sexually Transmitted Diseases Among Adolescents in St. Petersburg, Russia
Sexually Transmitted Diseases Russia Adolescents
2009/9/16
Context: Over the past several years, there have been sharp increases in the prevalence of HIV and other sexually transmitted diseases (STDs) among young people in Russia. Very little is known about R...
Influential Factors on Discontinuation of Intrauterine Contraceptive Device
IUD Discontinuation Complications
2009/12/16
Background & Aim: Choosing proper method for contraception can help to reduce prevalence of unwanted pregnancy and unsafe abortions. IUD is one of the most trustable; effective, and long-term contrace...
Intratesticular factors and testosterone secretion. Effect of treatments that alter the level of testosterone within the testis
Intratesticular factors testosterone secretion testosterone testis
2009/2/23
The authors recently have reported the presence of a nongonadotropic polypeptide factor in rat testicular interstitial fluid that can exert marked stimulatory effects on Leydig cell testosterone pro...
Factors influencing the success of sperm-cervical mucus interaction in patients exhibiting unexplained infertility
cervical mucus penetration sperm movement unexplained infertility hamster oocyte assay
2009/2/23
The factors regulating the success of sperm-cervical mucus interaction in 46 patients exhibiting unexplained infertility were analyzed. Within this group of patients, considerable variation in the d...
Recent developments in the treatment of impotence and studies on the results of psychological methods for its treatment seem to indicate that the number of individuals who suffer from impotence of p...
Rat Testicular Phospholipase A2 Activity：pH Optima, Its Cellular and Subcellular Distribution in the Gonad, and Some Factors That May Modulate Its Activity
rat testicular phospholipase A2 activity pH optima localization control
2009/2/19
A sensitive radiometric assay was developed for detecting phospholipase A1 and A2 (PLA1 and A2) activity. Four to five times more PLA2 activity was observed in rat testes than PLA1 activity. Two PLA...
Regional variation in macrophage antigen expression by murine epididymal basal cells and their regulation by testicular factors
Epididymis efferent duct ligation F4/80 Mac-i
2009/2/18
Factors controlling the appearance in the epididymis of basal cells and their expression of macrophage antigens were examined by ligating the efferent ducts to prevent the entry of spermatozoa in ad...
Regional variation in macrophage antigen expression by murine epididymal basal cells and their regulation by testicular factors
Epididymis efferent duct ligation F4/80 Mac-i
2009/2/18
Factors controlling the appearance in the epididymis of basal cells and their expression of macrophage antigens were examined by ligating the efferent ducts to prevent the entry of spermatozoa in ad...
Development of male urogenital epithelia elicited by soluble mesenchymal factors
male urogenital epithelia soluble mesenchymal factors
2009/2/13
Androgen-dependent development of male secondary sexual glands is mediated by paracrine mesenchymal-epithelial interactions that regulate a complex array of biological events such as epithelial mo...
Testis factors that may regulate gene expression: evidence from a patient with Kartagener's syndrome
Kartagener’s syndrome infertility sperm ultrastructure flagella
2009/2/13
Patients with Kartagener's syndrome characteristically have immotile cilia and flagella. Ultrastructural analysis of the efferent ducts of the patient described in this report revealed that the ci...
Growth factors（EGF, IGF-I）modulate the morphological differentiation of adult marmoset(Callithrix jacchus)Sertoli cells in vitro
Marmoset Sertoli cells growth factors in vitro ultrastructure
2009/2/12
The effects of epidermal growth factor (EGF) and insulin-like growth factor I (IGF-I) on mature marmoset (Callithrix jacchus) Sertoli cells in vitro were investigated using light and electron micr...
An orthotopic model for the study of growth factors in the ventral prostate of the rat：effects of epidermal growth factor and basic fibroblast growth factor
growth factors ventral prostate rat epidermal growth factor basic fibroblast growth factor
2009/2/12
In order to determine if epidermal growth factor (EGF) or basic fibroblast growth factor (bFGF) are capable of stimulating prostatic growth in situ, we complexed EGF and bFGF to a Matrigel (MG) ve...
150-kDa proteins in dog serum bind 1.5-kDa growth-promoting factors for androgen-independent canine prostatic epithelial cells
150-kDa proteins dog serum bind 1.5-kDa growth-promoting factors androgen-independent
2009/2/12
Fractions obtained by gel filtration or ultrafiltration of dog serum were tested for their mitogenic activity on canine prostatic epithelial cells: two prostatic growth factor (PGF) entities were fo...