Omss Science

December Birthstone Blue Topaz

2011-12-01T00:00:00.001+06:00

Birthstone Color: Blue As cool and inviting as a blue lake on a blistering summer day, December's birthstone is derived from the Sanskrit word "tapas," meaning fire. This is because Blue Topaz was considered by ancient civilizations to have cooling properties. Not only was it believed to cool boiling water when thrown into the pot, but to calm hot tempers as well! This gemstone

Safe sex precautions

2011-11-24T00:00:00.002+06:00

Shunga print by Kunisada depicting masturbationAvoiding physical contact Known as autoeroticism, solitary sexual activity is relatively safe. Masturbation, the simple act of stimulating one's own genitalia, is safe so long as contact is not made with other people's bodily fluids. Some activities, such as "phone sex" and "cybersex", that allow for partners to engage in sexual activity

Terminology - Safe Sex

2011-11-23T00:00:00.001+06:00

The term safer sex in Canada and the United States has gained greater use by health workers, reflecting that risk of transmission of sexually transmitted infections in various sexual activities is a continuum. The term safe sex is still in common use in the United Kingdom and Australia. Although "safe sex" is used by individuals to refer to protection against both pregnancy and HIV/AIDS or

Safe your sex

2011-11-22T00:00:00.000+06:00

Safe sex is sexual activity engaged in by people who have taken precautions to protect themselves against sexually transmitted diseases (STDs) such as AIDS. It is also referred to as safer sex or protected sex, while unsafe or unprotected sex is sexual activity engaged in without precautions. Some sources prefer the term safer sex to

History of Sex Disease

2011-11-21T00:00:00.001+06:00

1930s Works Progress Administration poster The first well-recorded European outbreak of what is now known as syphilis occurred in 1494 when it broke out among French troops besieging Naples. From this centre, the disease swept across Europe, killing more than five million people. As Jared Diamond describes it, "[W]hen syphilis was first definitely recorded in Europe in 1495, its

Epidemiology - Sex Disease

2011-11-20T00:00:00.001+06:00

Age-standardized, disability-adjusted life years for STDs (excluding HIV) per 100,000 inhabitants in 2004. no data < 60 60–120 120–180 180–240 240–300 300–360 360–420 420–480 480–540 540–600 600–1000 > 1000 STD incidence rates remain high in most of the world, despite diagnostic and therapeutic advances that can rapidly render patients with many STDs

Diagnosis of Sex Disease

2011-11-19T00:00:00.002+06:00

STI tests may test for a single infection, or consist of a number of individual tests for any of a wide range of STIs, including tests for syphilis, trichomonas, gonorrhea, chlamydia, herpes, hepatitis and HIV tests. No procedure tests for all infectious agents. STI tests may be used for a number of reasons: as a diagnostic test to determine the cause of symptoms or illnessas a screening

Prevention From Sex Disease

2011-11-18T00:00:00.001+06:00

Prevention is key in addressing incurable STIs, such as HIV & herpes. Sexual health clinics fight to promote the use of condoms and provide outreach for at-risk communities. The most effective way to prevent sexual transmission of STIs is to avoid contact of body parts or fluids which can lead to transfer with an infected partner. Not all sexual activities involve contact: cybersex,

Sex Disease - Pathophysiology

2011-11-17T00:00:00.002+06:00

Odds of transmission per unprotected sexual act with an infected person Known risks Possible or unknown risks Performing oral sex on a man ChlamydiaGonorrheaHerpes (rare)HPVSyphilis (1%) With ass to mouth practices: Hepatitis AShigella Hepatitis B (low risk)HIV (very low risk; 0.01%)Hepatitis C (unknown) Performing oral sex on a woman Herpes (rare) HPV Receiving oral sex -

Cause of Sex Disease

2011-11-16T00:00:00.002+06:00

Bacterial Chancroid (Haemophilus ducreyi)Chlamydia (Chlamydia trachomatis)Granuloma inguinale or (Klebsiella granulomatis)Gonorrhea (Neisseria gonorrhoeae)Syphilis (Treponema pallidum) Fungal Candidiasis (yeast infection) Viral Micrograph showing the viral cytopathic effect of herpes (ground glass nuclear inclusions, multi-nucleation). Pap test. Pap stain. Viral hepatitis (

Classification of Sex Disease

2011-11-15T00:00:00.002+06:00

Until the 1990s, STDs were commonly known as venereal diseases: Veneris is the Latin genitive form of the name Venus, the Roman goddess of love. Social disease was another euphemism. Sexually transmitted infection is a broader term than sexually transmitted disease. An infection is a colonization by a parasitic species, which may not cause any adverse effects. In a disease the infection

Sexually transmitted disease

2011-11-14T00:00:00.002+06:00

Sexually transmitted disease (STD), also known as a sexually transmitted infection (STI) or venereal disease (VD), is an illness that has a significant probability of transmission between humans by means of human sexual behavior, including vaginal intercourse, oral sex, and anal sex. While in the past, these illnesses have mostly been referred to as STDs or VD, in recent years the term

List of countries by sex ratio

2011-11-13T00:00:00.002+06:00

The human sex ratio is the number of males for each female in a population. This is a list of sex ratios by country or region.Data taken from The World Factbook (2011). It shows the male to female sex ratio as estimated by United States' CIA. However, there are differences between the estimates by The World Factbook and numbers reported by the census offices of respective countries. For

Human sex ratio

2011-11-12T00:00:00.002+06:00

In anthropology and demography, the human sex ratio is the sex ratio for Homo sapiens (i.e., the ratio of males to females in a population). Like most sexual species, the sex ratio is approximately 1:1. In humans the secondary sex ratio (i.e., at birth) is commonly assumed to be 105 boys to 100 girls, an assumption that is a subject of debate in the scientific community. The sex ratio for

Human sexual activity

2011-11-11T00:00:00.002+06:00

Human sexual activities or human sexual practices or human sexual behavior refers to the manner in which humans experience and express their sexuality. People engage in a variety of sexual acts from time to time, and for a wide variety of reasons. Sexual activity normally results in sexual arousal and physiological changes in the aroused person, some of which are pronounced while others are

List of Snakes

2011-11-10T00:00:00.002+06:00

This is a list of snakes by family, subfamily and genus, mostly according to the continuing work of Dr. Roy W. McDiarmid, available through ITIS. The one exception is the family Colubridae because ITIS information for it is currently incomplete. In this case, taxonomic data from the New Reptile Database was used instead, combined with some information for authorities, years and common names

Interactions with humans of Snake

2011-11-09T00:00:00.002+06:00

Most common symptoms of any kind of snake bite poisoning. Furthermore, there is vast variation in symptoms between bites from different types of snakes. Snakes do not ordinarily prey on humans, and most will not attack humans unless the snake is startled or injured, preferring instead to avoid contact. With the exception of large constrictors, nonvenomous snakes are not a threat to

Behavior of Snake

2011-11-08T00:00:00.002+06:00

Feeding and diet Snake eating a rodent. All snakes are strictly carnivorous, eating small animals including lizards, other snakes, small mammals, birds, eggs, fish, snails or insects. Because snakes cannot bite or tear their food to pieces, they must swallow prey whole. The body size of a snake has a major influence on its eating habits. Smaller snakes eat smaller prey. Juvenile

Biology of Snake

2011-11-07T00:00:00.002+06:00

When compared, the skeletons of snakes are radically different from those of most other reptiles (such as the turtle, right), being made up almost entirely of an extended ribcage. Skeleton The skeleton of most snakes consists solely of the skull, hyoid, vertebral column, and ribs, though henophidian snakes retain vestiges of the pelvis and rear limbs. The skull of the snake consists of

Taxonomy of Snake

2011-11-06T00:00:00.002+06:00

All modern snakes are grouped within the suborder Serpentes in Linnean taxonomy, part of the order Squamata, though their precise placement within squamates is controversial. There are two infraorders of Serpentes: Alethinophidia and Scolecophidia. This separation is based on morphological characteristics and mitochondrial DNA sequence similarity. Alethinophidia is sometimes split into

Evolution of Snake

2011-11-05T00:00:00.002+06:00

A phylogenetic overview of the extant groups Modern snakes Scolecophidia Leptotyphlopidae Anomalepididae Typhlopidae Alethinophidia Anilius Core Alethinophidia Uropeltidae Cylindrophis Anomochilus Uropeltinae Macrostomata Pythonidae Pythoninae Xenopeltis Loxocemus

Snake

2011-11-04T00:00:00.002+06:00

Snakes are elongate, legless, carnivorous reptiles of the suborder Serpentes that can be distinguished from legless lizards by their lack of eyelids and external ears. Like all squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with many more joints than their lizard ancestors, enabling them to swallow prey much larger

Terminology of The Sun

2011-11-03T00:00:00.001+06:00

Like other natural phenomena, the Sun has been an object of veneration in many cultures throughout human history, and was the source of the word Sunday. Its formal name in the English language is, per the International Astronomical Union, the Sun (capitalized as a proper noun). The Latin name Sol , for the Sun god of the same name, is widely known but not common in general English language

Observation and effects of The Sun

2011-11-02T00:00:00.002+06:00

The brightness of the sun can cause pain from looking at it with the naked eye, although doing so for brief periods is not hazardous for normal, non-dilated eyes. Looking directly at the Sun causes phosphene visual artifacts and temporary partial blindness. It also delivers about 4 milliwatts of sunlight to the retina, slightly heating it and potentially causing damage in eyes that cannot

History of observation of The Sun

2011-11-01T00:00:00.003+06:00

Early understanding and etymology The Trundholm Sun chariotNordic Bronze Age mythology. The sculpture is probably from around 1350 BC. It is displayed at the National Museum of Denmark. pulled by a horse is a sculpture believed to be illustrating an important part of The English proper noun sun developed from Old English sunne (around 725, attested in Beowulf), and may be related to