Clinical Chemistry: Techniques, Principles, Correlations by Michael L. BishopIn its Sixth Edition, this acclaimed text continues to be the most student-friendly clinical chemistry text available, featuring clear explanations that strike just the right balance of analytic principles, techniques, and the correlation of results with disease states. All chapters have been thoroughly updated with the latest information as well as new case studies, practice questions, and exercises. This latest edition not only covers the how of clinical testing but also places greater emphasis on the what, why, and when in order to meet the needs of todays clinical laboratorians. A companion Website offers the full text online, objectives, a quiz bank, flashcards, glossary, and appendices for students and improved instructors resources.
What straight men don't understand about lesbians
Lesbian sex has been confounding people since the dawn of cucumbers. Another orgasm with a woman as the cure? Heat, however, cannot be extinguished by heat; rather, it will increase since it needs to be treated by its opposite. As coldness is repelled by heat, so heat is also repelled by coldness. Which foods provoke the lesbian itch? In Gay, Straight, and the Reason Why , Simon LeVay discusses psychoanalytic theories surrounding the roots of homosexuality, with a snippet on, who else, Sigmund Freud.
O ver the years, Karen, 35, has established exactly what she likes when it comes to online porn. Three or four times a week, she goes in search of new videos in some of her favorite categories -- Big breast play. They were in bed, kissing and fondling each other. There is little good data on how many self-identified straight women regularly watch woman-on-woman porn, but what evidence is available suggests Karen is hardly alone. So does the marked uptick in searches for "lesbian seduces straight girl," which increased by percent between and , according to PornHub's internal data. Straight women are looking at lesbian porn. The industry appears to be taking notice.
A lesbian is a homosexual woman. The concept of "lesbian" to differentiate women with a shared sexual orientation evolved in the 20th century. Throughout history, women have not had the same freedom or independence as men to pursue homosexual relationships, but neither have they met the same harsh punishment as homosexual men in some societies. Instead, lesbian relationships have often been regarded as harmless and incomparable to heterosexual ones, unless the participants attempted to assert privileges traditionally enjoyed by men. As a result, little in history was documented to give an accurate description of how female homosexuality was expressed. When early sexologists in the late 19th century began to categorize and describe homosexual behavior, hampered by a lack of knowledge about homosexuality or women's sexuality, they distinguished lesbians as women who did not adhere to female gender roles and incorrectly designated them mentally ill—a designation which has been reversed in the global scientific community. Women in homosexual relationships responded to this designation either by hiding their personal lives or accepting the label of outcast and creating a subculture and identity that developed in Europe and the United States.
Straight women are much more likely to get themselves knocked up than gay women. So, in terms of evolution, they would seem to have a better chance of passing on their genes, while at the same time it would seem that the genes that make women gay would quickly vanish from the gene pool. This raises the question, why are there gay women? Lesbianism is indeed at least 25 percent genetic, as determined by a study of twins conducted in the United Kingdom. The study found that identical twin sisters who share percent of their DNA are more likely to both be lesbians than are fraternal twin sisters who share just 50 percent , proving that, all other environmental factors being equal, genes matter. While scientists have a theory for how male homosexuality propagates from one generation to the next, no one has yet produced a viable explanation for how the genes that promote lesbianism might do the same. A female's sexual orientation also appears to be partly influenced by her level of exposure to the male sex hormone androgen when she is in the womb.