Academic literature on the topic 'Secondary sexual characteristics'

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Journal articles on the topic "Secondary sexual characteristics"

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Herman-Giddens, Marcia E., Lily Wang, and Gary Koch. "Secondary Sexual Characteristics in Boys." Archives of Pediatrics & Adolescent Medicine 155, no. 9 (2001): 1022. http://dx.doi.org/10.1001/archpedi.155.9.1022.

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Greil, Holle, and Heidrun Kahl. "Assessment of developmental age: cross-sectional analysis of secondary sexual characteristics." Anthropologischer Anzeiger 63, no. 1 (2005): 63–75. http://dx.doi.org/10.1127/anthranz/63/2005/63.

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Breathnach, C. S. "The secondary sexual characteristics of the brain." Irish Journal of Psychological Medicine 7, no. 1 (1990): 59–63. http://dx.doi.org/10.1017/s0790966700017067.

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AbstractIn the avian cerebrum and in the spinal cord, sympathetic ganglia, hypothalamico pre-optic area and cerebral cortex of the rat sexually dimorphic' nuclei are clearly recognisable. Similar differences have been described in the human brain. Morphometric analysis has shown a sexually dimorphic nucleus in the pre-optic area. There is continuing controversy over differences in the size and shape of the corpus callosum, but there is accumulating evidence of cerebral asymmetry with more focal representation of language and praxic functions in the left cerebral hemisphere in females. The vari
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Wojciechowski, A. P. "Evolutionary aspects of mammalian secondary sexual characteristics." Journal of Theoretical Biology 155, no. 2 (1992): 271–72. http://dx.doi.org/10.1016/s0022-5193(05)80598-3.

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Córdoba, Cristina R. "Secondary victimization of sexual violence. Analysis of secondary victimization in cases of sexual violence and sexting." Ehquidad Revista Internacional de Políticas de Bienestar y Trabajo Social, no. 17 (January 15, 2022): 179–210. http://dx.doi.org/10.15257/ehquidad.2022.0007.

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At present, secondary victimization of sexual violence is very common and it has negative effects to the victims. Secondary victimization raises the issues of the victims and it originates others. This victimization often associates with justice system but it may create by society, victims’ close environment and mass and social media. The primary objective of that research is to establish secondary victimization’s characteristics in the last years and its linkage with genre stereotypes about victims’ behavior before, during and after sexual violence. These stereotypes are the same in the diffe
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ITO, Madoka, and Seiichi WATANABE. "SECONDARY SEXUAL CHARACTERISTICS OF METACRANGON ANGUSTICAUDA(DE HAAN)." Researches on Crustasea 21 (1992): 107–11. http://dx.doi.org/10.18353/rcustacea.21.0_107.

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Graham, E. A., N. Sugar;, S. J. Emans, et al. "Secondary Sexual Characteristics and Menses in Young Girls." PEDIATRICS 101, no. 5 (1998): 949–50. http://dx.doi.org/10.1542/peds.101.5.949.

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Hockham, Leon R., and Michael G. Ritchie. "Female secondary sexual characteristics: appearances might be deceptive." Trends in Ecology & Evolution 15, no. 11 (2000): 436–38. http://dx.doi.org/10.1016/s0169-5347(00)01963-7.

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J�rvi, Torbj�rn, Eivin R�skaft, Morten Bakken, and Brigitta Zumsteg. "Evolution of variation in male secondary sexual characteristics." Behavioral Ecology and Sociobiology 20, no. 3 (1987): 161–69. http://dx.doi.org/10.1007/bf00299729.

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Emerson. "Vertebrate Secondary Sexual Characteristics-Physiological Mechanisms and Evolutionary Patterns." American Naturalist 156, no. 1 (2000): 84. http://dx.doi.org/10.2307/3079033.

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Dissertations / Theses on the topic "Secondary sexual characteristics"

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Christensen, Kathrine Rose. "Links between Sexual Health Content and Teacher Characteristics in North Dakota's Secondary Schools." Thesis, North Dakota State University, 2013. https://hdl.handle.net/10365/27235.

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Numerous studies indicate the ineffectiveness of abstinence-only education in preventing teen pregnancies and the spread of sexually transmitted infections (STIs), yet many U.S. schools still rely on abstinence-only programming. North Dakota, the focus of this study, neither prevents nor requires contraception instruction in sexual health education classes, leaving the decision to include contraception instruction and other sexual health information up to the individual schools and teachers. For this study, a survey of sexual health teachers was used to determine the content of sexual health c
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Peters, Marianne. "The role of male secondary sexual traits in human mate choice : are they preferred by females and do they signal mate quality ?" University of Western Australia. School of Psychology, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0201.

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[Truncated abstract]Judgements of physical attractiveness are thought to reflect evolved preferences for a high quality mate. The central aim of this thesis was to investigate the hypothesis that female preferences are adaptations for finding good quality mates and that faces and bodies signal honest information about mate quality. To date, most human mate preference studies have examined face or body attractiveness alone, and many have created stimuli using computer graphic techniques. Throughout these studies, I endeavoured to maximise the biological relevance of my studies by incorporating
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Li, Han-Yun, and 李涵芸. "Association between Secondary Sexual Characteristics and Urinary Alkylphenol Levels." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/03833960705110952243.

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碩士<br>國立陽明大學<br>環境衛生研究所<br>95<br>Alkylphenols (APs), mainly composed of nonylphenol (NP) and octylphenol (OP), are known as environmental hormone. 2,4-Di-tert-butylphenol (BP) is widely used as additives and antioxidants in plastic, rubber and surfactants. Because of widely uses of APs, population in Taiwan may ubiquitously expose to the hormone-like APs. Studies have reported that nonylphenol can accelerate the onset of puberty of female rats, but the effects of NP upon adolescent human are unknown. Adolescent students are at a rapidly physical and sexual development period. This study asses
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Tsai, Tai-Chen, and 蔡岱蓁. "Association Between Phthalate Esters Exposure and Secondary Sexual Characteristics for Pubertal Students." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/36281440032090880357.

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碩士<br>國立陽明大學<br>環境與職業衛生研究所<br>101<br>Phthalates are synthetic chemicals that are used in numerous consumer products. People may be exposed to them when they use these products or via contaminated foodstuffs. Exposure routes include ingestion, inhalation and dermal contact. Several animal studies have demonstrated that phthalates can adversely affect male and female reproductive systems. They are endocrine-disrupting chemicals (EDCs), potentially interfering with the normal functions of human hormones, affecting the onset of pubertal development. This cross-sectional study aims to evaluate leve
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Yang, Meng-Huan, and 楊孟桓. "Organophosphate Pesticide Exposure and Its Association with Secondary Sexual Characteristics of Adolescent Students." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/98289033736921069675.

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碩士<br>國立陽明大學<br>環境與職業衛生研究所<br>100<br>A large amount of organophosphate pesticides (OPs) is used throughout Taiwan, and human may be exposed through dietary intake or residential use. Adolescent students are at a rapidly physical and sexual development period, they may be more susceptible to the potentially adverse effects of pesticides than other age groups. Environmental chemicals may affect the growth and development in human, but the effects of OP upon adolescent are unknown. The aim of the present study was to assess the association between OPs exposure and secondary sexual development of
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Yang, Shang-Han, and 楊尚翰. "Regional Differences of Nonylphenol for Taiwanese Pubertal Students and its Correlation with Secondary Sexual Characteristics." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/52397944391481791202.

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碩士<br>國立陽明大學<br>環境與職業衛生研究所<br>102<br>4-Nonylphenol (NP) is industrial chemical substance used widely in our daily products. It is also an endocrine disruptor. The structure of nonylphenol is similar to estrogen. Once inside the human body, it disrupts the original function of hormone, including changes in puberty growth. This study aims to determine regional differences of nonylphenol for Taiwanese pubertal students and to clarify its correlation with development of secondary sexual characteristics. Four hundreds and twenty-three adolescent students (aged from 10 to 14) were recruited from nor
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Lin, Zi-liaung, and 林子量. "Potential Factors Influencing the Development of Secondary Sexual Characteristics in Adolescent Students: Surrounding Environment, Diet and Living Habits." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/73185118316233385979.

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碩士<br>國立陽明大學<br>環境與職業衛生研究所<br>97<br>Most of the research data of secondary sexual characteristics of pubertal student in Taiwan concentrate in the beginning of female menarche, so this research contains the self-administration questionnaires of whole Taiwan elementary and junior high school students from 5 to 8 to realize the status and potential factors of secondary sexual characteristics. Secondary sexual characteristics refers the difference of the appearance, figure, face and voice exclusive of reproductive organ. Boy’s Secondary sexual characteristics of this research are acne, the Adam’
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PECH, Michal. "Vliv syntetického progestinu etonogestrelu na sekundární pohlavní znaky a histologii gonád živorodky Wingeovy (Poecilia wingei)." Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-396084.

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Synthetic progestins are steroid hormones, which are not only part of the hormonal contraceptives, but they are also used to treat a number of health problems in human. Due to the widespread use of progestin-based drugs, their residues are being found in wastewaters, from where they also enter into the wastewater treatment plants and surface waters. The aim of this thesis was to assess whether the synthetic progestin etonogestrel affects the secondary sexual characteristics and gonad histology of Endler´s guppy (Poecilia wingei). During the experiment, males and females were separately exposed
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Books on the topic "Secondary sexual characteristics"

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Slater, Jonathan A., Katharine A. Stratigos, and Janis L. Cutler. Child, Adolescent, and Adult Development. Oxford University Press, 2014. http://dx.doi.org/10.1093/med/9780199326075.003.0014.

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The development of children and adolescents is characterized by abrupt discontinuities as well as continuous aspects of behavior such as individual temperament. The crucial task of the first year of life is the development and solidification of the attachment between infant and caretaker. Toddlers and adolescents tend to experience intense conflicts around autonomy and control that become resolved as they progress in the process of separation-individuation. The tasks of middle childhood include developing a sustained sense of mastery and competence, morality, and stable self-esteem; as ego fun
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Book chapters on the topic "Secondary sexual characteristics"

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Dekker, M. L., C. A. Hinde, and B. J. A. Pollux. "Secondary Sexual Characteristics." In Encyclopedia of Evolutionary Psychological Science. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-16999-6_65-1.

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Dekker, M. L., C. A. Hinde, and B. J. A. Pollux. "Secondary Sexual Characteristics." In Encyclopedia of Evolutionary Psychological Science. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-319-19650-3_65.

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Sever, David M., and Nancy L. Staub. "Hormones, Sex Accessory Structures, and Secondary Sexual Characteristics in Amphibians." In Hormones and Reproduction of Vertebrates. Elsevier, 2011. http://dx.doi.org/10.1016/b978-0-12-374931-4.10005-7.

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Sever, David M., and Nancy L. Staub. "Hormones, Sex Accessory Structures, and Secondary Sexual Characteristics in Amphibians." In Hormones and Reproduction of Vertebrates. Elsevier, 2011. http://dx.doi.org/10.1016/b978-0-12-374932-1.00018-4.

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Butler, Gary, and Jeremy Kirk. "Puberty and its disorders." In Paediatric Endocrinology and Diabetes. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198786337.003.0002.

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• Puberty is defined as the acquisition of secondary sexual characteristics, with a view to reproductive capability. • Assessment of puberty can be done by Tanner stages or the puberty phases. • Timing of pubertal onset and sequence of changes is carefully controlled. • Premature sexual maturation: ◦ &lt;8 years in girls; menarche &lt;11 years ◦ &lt;9 years in boys. • Central precocious puberty or gonadotropin-dependent precocious puberty: ◦ hormone secretion is similar to normal puberty ◦ may be idiopathic, genetic, or secondary to central nervous system/pituitary tumour or insult ◦ treatment
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Srinivas-Shankar, U., and F. C. W. Wu. "Disorders of male reproduction." In Oxford Textbook of Medicine. Oxford University Press, 2010. http://dx.doi.org/10.1093/med/9780199204854.003.130802.

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Luteinizing hormone (LH) stimulates biosynthesis of androgenic steroids by binding to specific surface membrane receptors on the Leydig cells in the testis. Testosterone is essential for male sexual differentiation, growth and function of the male genital tract, secondary sexual characteristics, sexual potency, and production of spermatozoa....
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Parker, Keith L. "Sexual Differentiation." In Textbook of Endocrine Physiology. Oxford University PressNew York, NY, 2004. http://dx.doi.org/10.1093/oso/9780195165654.003.0008.

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Abstract Sexual differentiation is a sequential process that begins at fertilization with the establishment of chromosomal sex, continues with the determination of gonadal sex, and culminates in the development of secondary sexual characteristics that comprise the male and female phenotypes. This basic paradigm (Fig. 8-1) was formulated by Alfred Jost to explain the results of castration experiments in fetal rabbits. If the gonads (ovaries or testes) were removed before sexual differentiation, female sexual differentiation inevitably ensued. The male pathway could be partly restored by testost
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Simmons, Leigh W. "3. Choosing from the field of competitors." In Sexual Selection: A Very Short Introduction. Oxford University Press, 2018. http://dx.doi.org/10.1093/actrade/9780198778752.003.0003.

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There is now unequivocal evidence for Darwin’s long-rejected suggestion that females choose among potential mates based on their secondary sexual traits. This has shifted attention from the question of whether females exercised mate choice, to why they should exhibit the mating preferences they do. ‘Choosing from the field of competitors’ gives a contemporary view of mate choice and its occurrence in a wide variety of animal species, along with some examples of what females are choosing and why parasites and disease may play a role in the evolution of extravagant secondary sexual characteristi
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Bouloux, P. M. G. "Disorders of male reproduction and male hypogonadism." In Oxford Textbook of Medicine, edited by Mark Gurnell. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198746690.003.0252.

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The adult testis performs two principle functions: the synthesis and secretion of androgens, and the production of male germ cells, the spermatozoa. Testosterone is essential for male sexual differentiation, growth, and function of the male genital tract, secondary sexual characteristics, sexual potency, and production of spermatozoa. Hypogonadism may be due to disorders of the pituitary/hypothalamus (secondary or hypogonadotropic hypogonadism) or testes (primary or hypergonadotropic hypogonadism). Its symptoms and signs depend on the age of onset of androgen deficiency. Prepubertal presentati
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Mcphaul, Michael J., and Richard J. Auchus. "Sexual Differentiation." In Textbook of Endocrine Physiology. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199744121.003.0010.

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Sexual differentiation is a sequential process that begins at fertilization with the establishment of chromosomal sex, continues with the determination of gonadal sex, and culminates in the development of secondary sexual characteristics that comprise the male and female phenotypes. This basic paradigm was formulated by Alfred Jost to explain the results of castration experiments in fetal rabbits. If the gonads (ovaries or testes) were removed before sexual differentiation, female sexual differentiation inevitably ensued. The male pathway could be partly restored by testosterone implants, sugg
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Reports on the topic "Secondary sexual characteristics"

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Xu, Dan, Xueying Zhou, Junfei Wang, Xi Cao, and Tao Liu. The Value of Urinary Gonadotropins in the Diagnosis of Central Precocious Puberty: A Meta-Analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2021. http://dx.doi.org/10.37766/inplasy2021.12.0076.

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Review question / Objective: Precocious puberty is defined as the onset of secondary sexual characteristics before the age of 8 years in girls and 9 years in boys. It can be differentiated into central precocious puberty (CPP) and peripheral precocious puberty, and it is more common in girls than in boys. CPP may result in a decreased final adult height, an early age at menarche, and psychological and health problems in adulthood. Gonadotropin-releasing hormone (GnRH) GnRH stimulation test has been indispensable in the diagnosis of CPP. GnRH stimulation test is not only invasive, time-consumin
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