The prevalence of HIV/AIDS in Thailand, and especially among sex workers, has been the subject of significant media and academic attention, and Thailand hosted the XV International AIDS Conference, 2004. Nevertheless, this does not seem to have dissuaded a significant number of tourists from partaking in sex with local prostitutes, although awareness of safe sex practices is fairly high among foreign-oriented sex workers. Mechai Viravaidya, affectionately known as "Mr. Condom" [1], has campaigned tirelessly to increase the awareness o ...

See also:

Prostitution in Thailand, Prostitution in Thailand - Forms of prostitution, Prostitution in Thailand - Body massage, Prostitution in Thailand - Bars catering to Westerners, Prostitution in Thailand - Male Prostitution, Prostitution in Thailand - Extent, Prostitution in Thailand - Locations/Venues, Prostitution in Thailand - HIV/AIDS, Prostitution in Thailand - Organizations, Prostitution in Thailand - Child prostitution trafficking and sex slavery

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See also:

Sexual reproduction, Sexual reproduction - Sexual reproduction of protists and fungi, Sexual reproduction - Reproduction in flowering plants, Sexual reproduction - Reproduction in reptiles, Sexual reproduction - Reproduction in birds, Sexual reproduction - Reproduction in mammals, Sexual reproduction - The mammalian male, Sexual reproduction - The mammalian female, Sexual reproduction - Gestation, Sexual reproduction - Birth, Sexual reproduction - Monotremes, Sexual reproduction - Marsupials, Sexual reproduction - Origin of Sexual Reproduction

Read more here: » Sexual reproduction: Encyclopedia II - Sexual reproduction - Reproduction in mammals

Prostitution in Thailand comes in a number of forms, mainly brothels, "body massage" parlors, hostess bars and karaoke places, all of which cater primarily to local customers and Asians. There are also various go-go bars and "beer bars" that often cater to Western expatriates or tourists. Finally, there are large numbers of "free-lancers" who can be found in hotel lobbies, discos, bars, and even in Thai universities. These women may ask for financial support from the men they sleep with, but this is not to suggest tha ...

See also:

Prostitution in Thailand, Prostitution in Thailand - Forms of prostitution, Prostitution in Thailand - Body massage, Prostitution in Thailand - Bars catering to Westerners, Prostitution in Thailand - Male Prostitution, Prostitution in Thailand - Extent, Prostitution in Thailand - Locations/Venues, Prostitution in Thailand - HIV/AIDS, Prostitution in Thailand - Organizations, Prostitution in Thailand - Child prostitution trafficking and sex slavery

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Sex, in the scope of this article and category, refers to the male and female duality of biology and reproduction. The somewhat similar term gender has more to do with identity than biology. The concept is confined to organisms that reproduce sexually. The female sex is defined as the one which produces the larger gamete (i.e., reproductive cell) and which typically bears the offspring. The category of sex reflects the biological reproductive function, rather than sexaulity or other behaviors. In some lower animals, sex may be assigned to specific structures rather than the entire organism as some species, such a ...

Including:

Sex - Sex in non-animal species Sex - Sex among humans
Sex - Discordance Sex - Biological varieties of discordance Sex - Psychological behavioral and cultural varieties of discordance Sex - Social and legal considerations

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A sex-determination system is a biological system that determines the development of sexual characteristics in an organism. In many cases, sex determination is genetic: males and females have different alleles or even different genes that specify their sexual morphology. In animals, this is often accompanied by chromosomal differences. In other cases, sex is determined by environmental variables (such as temperature) or social variables (the size of an organism relative to other members of its population). The details of some sex-dete ...

Including:

Sex-determination system - Chromosomal determination
Sex-determination system - Mammals Sex-determination system - Other chromosomal systems
Sex-determination system - Non-genetic sex-determination systems Sex-determination system - Reference

Read more here: » Sex-determination system: Encyclopedia - Sex-determination system

In Bangkok, the three main areas for Westerner-oriented prostitution frequented by both local expatriates and tourists are Patpong and the lower Sukhumvit Road area (including Nana plaza, Soi Cowboy, and a few smaller groupings of bars like the "Painter Bars" on Soi 33 and the Washington Square bars). There was also a significant area at Clinton Plaza prior to being closed for redevelopment in 2001. Many, but not all, of the large body massage parlors in the Rachadapisek district will accept Western customers, although most seem to charge higher prices than for local customers, and there are also some Western-frie ...

See also:

Prostitution in Thailand, Prostitution in Thailand - Forms of prostitution, Prostitution in Thailand - Body massage, Prostitution in Thailand - Bars catering to Westerners, Prostitution in Thailand - Male Prostitution, Prostitution in Thailand - Extent, Prostitution in Thailand - Locations/Venues, Prostitution in Thailand - HIV/AIDS, Prostitution in Thailand - Organizations, Prostitution in Thailand - Child prostitution trafficking and sex slavery

Read more here: » Prostitution in Thailand: Encyclopedia II - Prostitution in Thailand - Locations/Venues

Urology is the field of surgery that focuses on the urinary tracts of males and females, and on the reproductive system of males. In men, the urinary system overlaps with the reproductive system, and in women the urinary tract opens into the vulva. In both sexes, the urinary and reproductive tracts are close together, and disorders of one often affect the other. The organs covered by urology include the kidneys, ureters, urinary bladder , urethra , and the male reproductive organs ( testes, epididymis, vas de ...

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A sex organ, or primary sexual characteristic, narrowly defined, is any of those parts of the body (which are not always bodily organs according to the strict definition) which are involved in sexual reproduction and constitute the reproductive system in a complex organism; namely: Male: penis (notably the glans penis and foreskin), prepuce, testicles, scrotum, prostate, seminal vesicles, epididymis, Cowper's glands Female: vulva (notably the clitoris and labia), vagina, cervix, uterus, Fallopian tubes, ova ...

Including:

Sex organ - Anatomical terms related to sex

Read more here: » Sex organ: Encyclopedia - Sex organ

In a variety of different contexts, gender refers to the masculinity or femininity of words, persons, characteristics, or non-human organisms. The classification into masculine and feminine is analogous to the biological sexes of male and female, often by physical or syntactical analogy, linguistic decay, misunderstandings, societal norms, or personal choice. The nature of this categorisation varies depending on the context. For example, gender can be used to refer to the differences in biological sex betwe ...

Including:

Gender - Etymology and usage Gender - Grammatical gender Gender - Sex Gender - Social category
Gender - In feminist theory Gender - Other languages
Gender - Other uses
Gender - Fasteners and connectors Gender - Music

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Androgen is the generic term for any natural or synthetic compound, usually a steroid hormone, that stimulates or controls the development and maintenance of masculine characteristics in vertebrates by binding to androgen receptors. This includes the activity of the accessory male sex organs and development of male secondary sex characteristics. Androgens, which were first discovered in 1936, are also called androgenic hormones or testoids. Androgens are also the original anabolic steroids. They are also the precursor of ...

Including:

Androgen - Types of androgens Androgen - Androgen functions
Androgen - Development of the male Androgen - Spermatogenesis Androgen - Inhibition of fat deposition Androgen - Muscle mass Androgen - Brain
Androgen - Insensitivity to androgen in humans

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An androgyne is a person who feels that they do not fit cleanly into society's boxes labeled men and woman. An androgyne may identify with the gender identity of a combination of male and female or as neither / neutrally gendered. They may also use the terms non-gendered or bigendered. They may experience swings between genders. Androgyny can be either physical and/or psychological, it does not depend on birth sex per se. An androgyne may have been born with ambiguous sex organs (intersex), or for other ...

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Unisexual species are those in which each individual generally shows the characteristics of only one sex, such as animal species which are divisible into male or female or plant species which are divisible into pistillate or staminate. Good examples of this type of pollination are hollies, and kiwifruit. In these plants the male plant which supplies the pollen is referred to as the pollenizer. It does not define a sexuality (such as Homosexuality), but rather a state of being. It means one has only one kind of sexual organ, as opposed to both kinds as a Hermaphrodite would. See also hermaph ...

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In zoology, a hermaphrodite is an organism of a species whose members possess both male and female sexual organs during their lives. In many species, hermaphroditism is a normal part of the life-cycle. Generally, hermaphroditism occurs in the invertebrates, although it occurs in a fair number of fish, and to a lesser degree in other vertebrates. See below for use of the term in plants. Note: The term "hermaphrodite" has historically been used to describe people with ambiguous genitalia or biological sex. The broad ...

Including:

Hermaphrodite - In animals
Hermaphrodite - Fetal hermaphroditism in humans
Hermaphrodite - In plants Hermaphrodite - Etymology

Read more here: » Hermaphrodite: Encyclopedia - Hermaphrodite

Masturbation is the manual excitation of the sexual organs, most often to the point of orgasm. It can refer to excitation either by oneself or by another (see mutual masturbation), but commonly refers to such activities performed alone. It is part of a larger set of activities known as autoeroticism, which also includes the use of sex toys and non-genital stimulation. There are also masturbation machines used to simulate intercourse. Masturbation and sexual intercourse are the two most common sexual practices, but they are not mutuall ...

Including:

Masturbation - Etymology Masturbation - Masturbation techniques
Masturbation - Female Masturbation - Male
Masturbation - Masturbation frequency age and sex Masturbation - Health and psychological effects Masturbation - Masturbation in history and society
Masturbation - Antiquity Masturbation - Religion Masturbation - Philosophical arguments regarding masturbation Masturbation - Medical attitudes
Masturbation - Law Masturbation - Euphemisms Masturbation - Humour and masturbation

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While the terms "fraternity" and "sorority" may be used to describe any number of social and charitable organizations, including the Lions Club, Epsilon Sigma Alpha, International, and the Shriners, in the United States and Canada fraternities and sororities are most commonly known as social organizations of higher education students - organizations like fraternities outside the US and Canada are rare, however one example would be the German Student Corps. Fraternities are all-male or mixed-sex; the female-only equivalen ...

Including:

Fraternities and sororities - The purposes and types of fraternities Fraternities and sororities - Structure and organization
Fraternities and sororities - Ritual and secrecy Fraternities and sororities - Fraternity and sorority houses Fraternities and sororities - Joining a fraternity or sorority Fraternities and sororities - Hazing issues
Fraternities and sororities - History and development Fraternities and sororities - Portrayal of fraternities and sororities in popular culture Fraternities and sororities - Categories of fraternities and sororities Fraternities and sororities - Interfraternal and professional organizations Fraternities and sororities - Fraternities and sororities outside North America
Fraternities and sororities - Europe Fraternities and sororities - The Philippines

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The endocrine system is a control system of ductless endocrine glands that secrete chemical messengers called hormones that circulate within the body via the bloodstream to affect distant organs. It does not include exocrine glands such as salivary glands, sweat glands and glands within the gastrointestinal tract. The field of medicine that deals with disorders of endocrine glands is endocrinology, a branch of the wider field of internal medicine. Endocrine system - Physiology. The endocrine s ...

Including:

Endocrine system - Physiology Endocrine system - Table of endocrine glands and the hormones secreted
Endocrine system - In both sexes: Endocrine system - In males only Endocrine system - In females only
Endocrine system - Role in disease

Read more here: » Endocrine system: Encyclopedia - Endocrine system

In the anatomy of mammals, a nipple or mammary papilla is a small projection of skin containing the outlets for 15-20 lactiferous ducts arranged cylindrically around the tip. The physiological purpose of nipples is to deliver milk produced in the female mammary glands during lactation to the infant. In the male, nipples are often not considered functional with regard to breastfeeding, although male lactation is possible. Mammalian infants have a rooting instinct for seeking the nipple, and a sucking ...

See also:

Nipple, Nipple - Anatomy, Nipple - Male nipples

Read more here: » Nipple: Encyclopedia II - Nipple - Anatomy

Male nipples were for a long time considered a biological mystery, since they appeared not to serve any direct biological function, and so their development appeared to present a problem for the theory of evolution. Modern biology now regards the existence of male nipples as being consistent with the theory of evolution. Indeed, the development of male nipples may be regarded as a good example of both the mechanisms by which evolution of the genome expresses itself in the phenotype, and the undirec ...

See also:

Nipple, Nipple - Anatomy, Nipple - Male nipples

Read more here: » Nipple: Encyclopedia II - Nipple - Male nipples

The life of a liverwort starts from a haploid spore, which germinates to produce a protonema, which is either a mass of filaments or thalloid (flat and thallus-like). This is a transitory stage in the life of a liverwort. From the protonema grows the gametophore ("gamete-bearer") that produces the sex organs of the liverworts. The female organs are known as archegonia (singular archegonium) and are protected by the perichaetum (plural perichaeta). The archegonia have necks called venters which the male sperm swim down. The male organs are known as antheridia (singular antheridium) and are ...

See also:

Marchantiophyta, Marchantiophyta - Overview, Marchantiophyta - Description, Marchantiophyta - Life cycle, Marchantiophyta - Classification

Read more here: » Marchantiophyta: Encyclopedia II - Marchantiophyta - Life cycle

In terms of sex, men have various sexual characteristics that differentiate them from women. Just as in women, the sex organs of a man are part of the reproductive system, consisting of the penis, testicles, vas deferens and other sperm cords, and the prostate gland. The male reproductive system is oriented around producing and ejaculating semen which carries sperm and thus genetic information. Since sperm that enters a woman's uterus and then fallopian tubes goes on to fertilize an egg which develops into a fetus or child, the male reproductive system plays no necessary role during the gestation. The concept of fatherhood an ...

See also:

Man, Man - Etymology, Man - Age, Man - Biology and sex, Man - Gender roles

Read more here: » Man: Encyclopedia II - Man - Biology and sex