query: What causes gray hair?

title: Human hair color

text: 4) gene was announced after a study of 6,000 people living in five Latin American countries. However, it found that environmental factors controlled about 70% of cases of hair graying. The change in hair color occurs when melanin ceases to be produced in the hair root and new hairs grow in without pigment. The stem cells at the base of hair follicles produce melanocytes, the cells that produce and store pigment in hair and skin. The death of the melanocyte stem cells causes the onset of graying. It remains unclear why the stem cells of one hair follicle may fail

title: Gray (horse)

text: colors are "graying out," both red and white hairs are often mixed on the body. Thus rose gray horses have a slight pinkish tinge to their graying coat. These horses are sometimes confused with roans, but a gray continues to lighten with age, while a roan does not. Roaning also causes fewer white hairs on the legs and head, giving the horse the appearance of dark points, which is usually not true of gray. "Dapple gray" is an intermediate stage not seen on all grays, but often considered highly attractive. It consists of a dark hair coat with "dapples," which

title: Granny hair trend

text: hair and both the practices are damaging to the health of the hair. To achieve the look prior to naturally graying, hair must first bleached until it's white. Then tones of gray, blue or violet are added. If the color isn't made light enough, the hair will take on a green tone instead of gray. Maintaining the look of artificially gray hair requires a lot of maintenance to avoid regrowth. Frequent toning is required since silver and grey hair can look blond after a few weeks. Granny hair trend The granny hair trend (also known as Granny gray) is a

title: Granny hair trend

text: Granny hair trend The granny hair trend (also known as Granny gray) is a new phenomenon of young women coloring their hair to different shades of gray. For centuries, people have tried to hide graying hair with methods like dyeing, coloring and henna since gray hair appears most often on older adults and aging is stigmatized in most Western societies. A recent beauty trend has seen women defying stereotypes and opting to leave graying hair natural or purposely gray their hair prematurely. The trend is attributed to fashion designer Jean-Paul Gaultier, whose Autumn/Winter 2011 show featured models in grey Beehives.

title: Human hair color

text: hair and approximately 40 percent carry the recessive redhead gene. Gray or white hair—sometimes colloquially called "salt and pepper" when it is 'peppered' throughout dark hair—is not caused by a true gray or white pigment, but is due to a lack of pigmentation and melanin. The clear hairs appear as gray or white because of the way light is reflected from the hairs. Gray hair color typically occurs naturally as people age (see Aging or achromotrichia below). For some people this can happen at a very young age, even as young as 10. In some cases, gray hair may be

title: Human hair color

text: in men and late twenties in women. More than 60 percent of Americans have some gray hair by age 40. The age at which graying begins seems almost entirely due to genetics. Sometimes people are born with gray hair because they inherit the trait. The order in which graying happens is usually: nose hair, hair on the head, beard, body hair, eyebrows. In non-balding individuals hair may grow faster once it turns gray. Several genes appear to be responsible for the process of graying. "Bcl2" and "Bcl-w" were the first two discovered, then in 2016, the IRF4 (interferon regulatory factor

title: HAIR-AN syndrome

text: or factors. And although it might be uncertain of what particularly caused HAIR-AN syndrome, one could just go and find out how hyperandrogenism, insulin resistance and acanthosis nigricans are caused, as these three are the leading contributors to HAIR-AN syndrome, which indirectly signifies that HAIR-AN syndrome is caused by these three. Knowing the cause of these three might provide one with some useful data that connects or links with the causes of HAIR-AN syndrome. SAHA syndrome is also taken in consider among the source that cause HAIR-An syndrome. The preferable way to diagnose the presence of this syndrome would be

title: Hair cell

text: a special manner. The perilymph in the scala tympani has a very low concentration of positive ions. The electrochemical gradient makes the positive ions flow through channels to the perilymph. Hair cells chronically leak Ca. This leakage causes a tonic release of neurotransmitter to the synapses. It is thought that this tonic release is what allows the hair cells to respond so quickly in response to mechanical stimuli. The quickness of the hair cell response may also be due to the fact that it can increase the amount of neurotransmitter release in response to a change as little as 100

title: Hair

text: of hair pigments. Both of these pigments are melanin types, produced inside the hair follicle and packed into granules found in the fibers. Eumelanin is the dominant pigment in brown hair and black hair, while pheomelanin is dominant in red hair. Blond hair is the result of having little pigmentation in the hair strand. Gray hair occurs when melanin production decreases or stops, while poliosis is hair (and often the skin to which the hair is attached), typically in spots, that never possessed melanin at all in the first place, or ceased for natural genetic reasons, generally, in the first

title: Human hair color

text: 2005 uncontrolled study demonstrated that people 50–70 years of age with dark eyebrows but gray hair are significantly more likely to have type II diabetes than those with both gray eyebrows and hair. A 1996 British Medical Journal study found that tobacco smoking may cause premature graying. Smokers were found to be four times more likely to begin graying prematurely, compared to nonsmokers. Gray hair may temporarily darken after inflammatory processes, after electron-beam-induced alopecia, and after some chemotherapy regimens. Much remains to be learned about the physiology of human graying. There are no special diets, nutritional supplements, vitamins, nor proteins

title: Hair loss

text: loss is unclear, the cause of alopecia areata is autoimmune, and the cause of telogen effluvium is typically a physically or psychologically stressful event. Telogen effluvium is very common following pregnancy. Less common causes of hair loss without inflammation or scarring include the pulling out of hair, certain medications including chemotherapy, HIV/AIDS, hypothyroidism, and malnutrition including iron deficiency. Causes of hair loss that occurs with scarring or inflammation include fungal infection, lupus erythematosus, radiation therapy, and sarcoidosis. Diagnosis of hair loss is partly based on the areas affected. Treatment of pattern hair loss may simply involve accepting the condition. Interventions

title: Hair coloring

text: hair's color and porosity across the head and along the length of a hair strand, there will be subtle variations in shade across the entire head. This gives a more natural-looking result than the solid, all over color of a permanent color. Because gray or white hairs have a different starting color than other hair, they will not appear as the same shade as the rest of the hair when treated with semi-permanent color. If there are only a few grey/white hairs, the effect will usually be enough for them to blend in, but as the gray spreads, there will

title: Human hair color

text: years old, 74% had some grey hair, covering an average of 27% of their head, and approximately 1 in 10 people had no gray hairs even after the age of 60. Children born with some hair colors may find it gradually darkens as they grow. Many blond, light brown, or red haired infants experience this. This is caused by genes being turned off and on during early childhood and puberty. Changes in hair color typically occur naturally as people age, eventually turning the hair gray and then white. This is called achromotrichia. Achromotrichia normally begins in the early to mid-twenties

title: Gray (horse)

text: eyes and flanks, occasionally at birth, and usually by the age of one year. Over time, white hairs replace the birth color and the horse changes slowly to either a "rose gray", "salt and pepper" (or "iron" gray), or "dapple gray." As the horse ages, the coat continues to lighten to a pure "white " or "fleabitten" gray hair coat. Thus, the many variations of gray coloring in horses are intermediate steps that a young horse takes while "graying out" from a birth color to a hair coat that is completely "white." Different breeds, and individuals within each breed, take

title: Hair coloring

text: Hair coloring Hair coloring, or hair dying, is the practice of changing the hair color. The main reasons for this are cosmetic: to cover gray or white hair, to change to a color regarded as more fashionable or desirable, or to restore the original hair color after it has been discolored by hairdressing processes or sun bleaching. Hair coloring can be done professionally by a hairdresser or independently at home. Today, hair coloring is very popular, with 75% of women and 18% of men living in Copenhagen having reported using hair dye according to a study by the University of

title: Hair highlighting

text: Hair highlighting Hair highlighting/lowlighting is changing a person's hair color, using lightener or haircolor to color hair strands. There are four basic types of highlights: foil highlights, hair painting, frosting, and chunking. Highlights can be done in natural or unnatural colors. Color highlights come in four categories: temporary, semi-permanent, demi-permanent and permanent. Hair lightened with bleach or permanent color will be permanent until new growth begins to growth. Highlighted hair will make the hair appear fuller. Therefore, it is recommended on people with thin and fine hair. It also recommended for people with at least 50 % gray for easy

title: Hair highlighting

title: Brown hair

text: of polymer bonds. The two types are black eumelanin and brown eumelanin. Black eumelanin is the darkest; brown eumelanin is much lighter than black. A small amount of black eumelanin in the absence of other pigments causes grey hair. A small amount of brown eumelanin in the absence of other pigments causes yellow (blond) color hair. Often, natural blond or red hair will darken to a brown color over time. Brown-haired people have medium-thick strands of hair. Brown-haired people are thought to produce more skin-protecting eumelanin and are associated with having a more even skin tone. The range of skin

title: Hair coloring

text: some of these hair dyes are being legally restricted from the cosmetic marketplace. The European Union is particularly stringent with regard to health regulations. To ensure that hair dyes contain only safe substances, the European Commission adopted the Directive 2012/21/EU to restrict the use of around 45 chemicals in hair dyes. The directive on dyes is part of a general and comprehensive set of regulations, the EU Cosmetics Directive 76/768/EC. Hair coloring Hair coloring, or hair dying, is the practice of changing the hair color. The main reasons for this are cosmetic: to cover gray or white hair, to change

title: Hair

text: long periods of time. It can take three to five weeks for waxed hair to begin to resurface again. Hair in areas that have been waxed consistently is known to grow back finer and thinner, especially compared to hair that has been shaved with a razor. Laser hair removal is a cosmetic method where a small laser beam pulses selective heat on dark target matter in the area that causes hair growth without harming the skin tissue. This process is repeated several times over the course of many months to a couple of years with hair regrowing less frequently until

title: Gray (horse)

text: carrying a loss-of-function mutation in ASIP (agouti signaling protein) had a higher incidence of melanoma, implying that increased melanocortin-1 receptor signaling promotes melanoma development in Gray horses. Many people who are unfamiliar with horses refer to a gray horse as "white". However, most white horses have pink skin and some have blue eyes. A horse with dark skin and dark eyes under a white hair coat is gray. However, a gray horse with an underlying homozygous cream base coat color may be born with rosy-pink skin, blue eyes and near-white hair. In such cases, DNA testing may clarify the genetics

title: Terminal hair

text: terminal hair in more areas. This includes facial hair, chest hair, abdominal hair, leg and arm hair, and foot hair. Human females on the other hand can be expected to retain more of the vellus hair. Terminal hair In humans, terminal hairs are thick, long and dark, as compared with vellus hair. During puberty, the increase in androgenic hormone levels causes vellus hair to be replaced with terminal hair in certain parts of the human body. These parts will have different levels of sensitivity to androgens, primarily of the testosterone family. The pubic area is particularly sensitive to such hormones,

title: Human hair color

text: Human hair color Hair color is the pigmentation of hair follicles due to two types of melanin: eumelanin and pheomelanin. Generally, if more eumelanin is present, the color of the hair is darker; if less eumelanin is present, the hair is lighter. Levels of melanin can vary over time causing a person's hair color to change, and it is possible to have hair follicles of more than one color on the same person. Particular hair colors are often associated with ethnic groups, while gray or white hair is associated with age. Two types of pigment give hair its color: eumelanin

title: Hair loss

text: Hair loss Hair loss, also known as alopecia or baldness, refers to a loss of hair from part of the head or body. Typically at least the head is involved. The severity of hair loss can vary from a small area to the entire body. Typically inflammation or scarring is not present. Hair loss in some people causes psychological distress. Common types include: male-pattern hair loss, female-pattern hair loss, alopecia areata, and a thinning of hair known as telogen effluvium. The cause of male-pattern hair loss is a combination of genetics and male hormones, the cause of female pattern hair

title: Hair roller

text: Hair roller A hair roller or hair curler is a small tube that is rolled into a person's hair in order to curl it, or to straighten curly hair, making a new hairstyle. The diameter of a roller varies from approximately to . The hair is heated, and the rollers strain and break the hydrogen bonds of each hair's cortex, which causes the hair to curl. The hydrogen bonds reform after the hair is moistened. A hot roller or hot curler is designed to be heated in an electric chamber before one rolls it into the hair. Alternatively, a hair

title: Hair loss

text: blaze", such as on a horse's head. Hair loss Hair loss, also known as alopecia or baldness, refers to a loss of hair from part of the head or body. Typically at least the head is involved. The severity of hair loss can vary from a small area to the entire body. Typically inflammation or scarring is not present. Hair loss in some people causes psychological distress. Common types include: male-pattern hair loss, female-pattern hair loss, alopecia areata, and a thinning of hair known as telogen effluvium. The cause of male-pattern hair loss is a combination of genetics and male

title: Hair roller

text: hair should be removed from them and then soaked in shampoo and water mixture followed by a vinegar solution to remove any excess oil or dirt. Hair roller A hair roller or hair curler is a small tube that is rolled into a person's hair in order to curl it, or to straighten curly hair, making a new hairstyle. The diameter of a roller varies from approximately to . The hair is heated, and the rollers strain and break the hydrogen bonds of each hair's cortex, which causes the hair to curl. The hydrogen bonds reform after the hair is

title: Hair (Hair song)

text: band Zen reached the top of the Dutch Top 40 in January 1969. Citations Sources Notes Hair (Hair song) "Hair" is the title song to the 1968 musical "Hair" and the 1979 film adaptation of the musical. The musical’s title song begins as character Claude slowly croons his reason for his long hair, as tribe-mate Berger joins in singing they deem they "don’t know." They lead the tribe, singing "Give me a head with hair," "as long as God can grow it," listing what they want in a head of hair and their uses for it. Later the song takes

title: Hair (Hair song)

text: Hair (Hair song) "Hair" is the title song to the 1968 musical "Hair" and the 1979 film adaptation of the musical. The musical’s title song begins as character Claude slowly croons his reason for his long hair, as tribe-mate Berger joins in singing they deem they "don’t know." They lead the tribe, singing "Give me a head with hair," "as long as God can grow it," listing what they want in a head of hair and their uses for it. Later the song takes the tune of "The Star-Spangled Banner" with the tribe punning "Oh say can you see/ My

title: Gray snub-nosed monkey

text: Gray snub-nosed monkey The gray snub-nosed monkey ("Rhinopithecus brelichi"), also known as Brelich's snub-nosed monkey, Guizhou snub-nosed monkey, and Guizhou golden monkey, is a species of primate in the family Cercopithecidae. It is endemic to China, where it is known as the Guizhou golden hair monkey (黔金丝猴) or gray golden hair monkey (灰金丝猴). It is threatened by habitat loss. Of the three species of snub-nosed monkeys in China, the gray snub-nosed monkey is the most threatened, with a total population of less than 750 in around 20 groups surviving in the wild. Adults are covered with long, fine hair, generally

title: Long hair

text: development). Scientists also view the ability to grow very long hair as a result of sexual selection, since long and healthy hair is a sign of fertility and youth. An evolutionary biology explanation for this attraction is that hair length and quality can act as a cue to youth and health, signifying a woman's reproductive potential. As hair grows slowly, long hair may reveal 2–3 years of a person's health status, nutrition, age and reproductive fitness. Malnutrition and deficiencies in minerals and vitamins due to starvation causes loss of hair or changes in hair color (e.g. dark hair turning reddish).

title: Hair coloring

text: less damaging to hair than their permanent counterpart. Demi-permanents are much more effective at covering gray hair than semi-permanents, but less so than permanents. Demi-permanents have several advantages as compared with permanent color. Because there is essentially no lifting (i.e., removal) of natural hair color, the final color is less uniform/homogeneous than a permanent and therefore more natural looking; they are gentler on hair and therefore safer, especially for damaged hair; and they wash out over time (typically 20 to 28 shampoos), so root regrowth is less noticeable and if a change of color is desired, it is easier to

title: Ingrown hair

text: Ingrown hair Ingrown hair is a condition where hair curls back or grows sideways into the skin. The condition is most prevalent among people who have coarse or curly hair. It may or may not be accompanied by an infection of the hair follicle (folliculitis) or "razor bumps" (pseudofolliculitis barbae), which vary in size. While ingrown hair most commonly appears in areas where the skin is shaved or waxed (beard, legs, pubic region), it can appear anywhere. Anything which causes the hair to be broken off unevenly with a sharp tip can cause ingrown hairs. Ingrown hairs are also caused

title: Terminal hair

text: Terminal hair In humans, terminal hairs are thick, long and dark, as compared with vellus hair. During puberty, the increase in androgenic hormone levels causes vellus hair to be replaced with terminal hair in certain parts of the human body. These parts will have different levels of sensitivity to androgens, primarily of the testosterone family. The pubic area is particularly sensitive to such hormones, as are the armpits which will develop axillary hair. Pubic and axillary hair will develop on both men and women, to the extent that such hair qualifies as a secondary sex characteristic, although males will develop

title: Hair follicle

text: epidermal growth factor. DLX3 is a crucial regulator of hair follicle differentiation and cycling. Specifically, colocalization of phosphorylated Smad1/5/8 complex and DLX3 regulate role for BMP signaling to Dlx3 during hair morphogenesis in animal models. Anagen is the active growth phase of hair follicles during which the root of the hair is dividing rapidly, adding to the hair shaft. During this phase the hair grows about 1 cm every 28 days. Scalp hair stays in this active phase of growth for 2–7 years; this period is genetically determined. At the end of the anagen phase an unknown signal causes the

title: Hair loss

text: if they arise. Although not completely understood, hair loss can have many causes: Male pattern hair loss is believed to be due to a combination of genetics and the male hormone dihydrotestosterone. The cause in female pattern hair loss remains unclear. Hair loss often follows childbirth in the postpartum period without causing baldness. In this situation, the hair is actually thicker during pregnancy owing to increased circulating oestrogens. Approximately three months after giving birth (typically between 2 and 5 months), oestrogen levels drop and hair loss occurs, often particularly noticeably around the hairline and temple area. Hair typically grows back

title: Four causes

text: moves in, and its greater command over nature. Francis Bacon "The New Organon", Book II, Aphorism 9, 1620 Bacon's position became the standard one for modern science. Explanations in terms of final causes remain common in evolutionary biology. Francisco J. Ayala has claimed that teleology is indispensable to biology since the concept of adaptation is inherently teleological. In an appreciation of Charles Darwin published in "Nature" in 1874, Asa Gray noted "Darwin's great service to Natural Science" lies in bringing back Teleology "so that, instead of Morphology "versus" Teleology, we shall have Morphology wedded to Teleology". Darwin quickly responded, "What

title: Body hair

text: upper arm. This type of intense arm vellus hair growth sometimes occurs in young women and people of both sexes until puberty. Even though this causes the arms to appear hairy, it is not caused solely by testosterone. The hair is softer and different from men's arm hair, in texture. Visible hair appearing on the top surfaces of the feet and toes generally begins with the onset of puberty. Terminal hair growth on the feet is typically more intense in adult and adolescent males than in females. Leg hair sometimes appears at the onset of adulthood, with the legs of

title: Hair gel

text: punk subculture in the 1980s. Some hair gels include temporary hair coloring, which includes variants in unnatural colors associated with various subcultures, such as the goths, ravers, and greasers. In films and on television, mobsters and government agents are also well-known for using hair gel in similar ways to each other, goths, and greasers. Cationic polymers are among the main functional components of hair gel. The positive charges in the polymers causes them to stretch, making the gel more viscous. Hair gels resist natural protein conformations and allow hair to be styled and textured, because the stretched-out polymer takes up

title: Granny hair trend

text: the growing popularity of the look. This same year, the website boredpanda asked women to post their photos in gray hairstyles and that page has since then received over 600,000 views. Two groups emerged; young people changing their hair color and the older generation eager to embrace their natural grays. Something previously perceived as a feature that needs to be hidden, considered a flaw of aging, was embraced as desirable and beautiful. Movie stars Dame Judi Dench and Jamie Lee Curtis also wore more natural tones. Coloring hair gray often requires the use of dyeing as well as bleaching the

title: Granny hair trend

text: In Spring 2015, his catwalk show at Paris Fashion Week featuring silver haired models as did the shows of other fashion designers Chanel and Gareth Pugh. Ellie Goulding was seen in 2011 with platinum hair that was shaded towards grey instead of white or blond. Kelly Osbourne was also an early proponent of the look, sporting gray hair as early as 2012. Over the next few years, many celebrities like Lady Gaga, Pink, Rihanna, Nicole Ritchie and Dascha Polanco also tried out this new trend. By the summer of 2015, gray and pastel colors were regularly requested at salons, showing

title: Human hair color

text: that have been proven to slow, stop, or in any way affect the graying process, although many have been marketed over the years. However, French scientists treating leukemia patients with a new cancer drug noted an unexpected side effect: some of the patients' hair color was restored to their pre-gray color. The hair color of mummies or buried bodies can change. Hair contains a mixture of black-brown-yellow eumelanin and red pheomelanin. Eumelanin is less chemically stable than pheomelanin and breaks down faster when oxidized. It is for this reason that Egyptian mummies have reddish hair. The color of hair changes

title: Red hair

text: some Neanderthals also had red hair, although the mutation responsible for this differs from that which causes red hair in modern humans. A 2007 report in "The Courier-Mail", which cited the "National Geographic" magazine and unnamed "geneticists", said that red hair is likely to die out in the near future. Other blogs and news sources ran similar stories that attributed the research to the magazine or the "Oxford Hair Foundation". However, a HowStuffWorks article says that the foundation was funded by hair-dye maker Procter & Gamble, and that other experts had dismissed the research as either lacking in evidence or

title: Gray bat

text: amounts of hair than at other times during the activity season. During grooming, gray bats also ingest ectoparasites such as chiggers that live in their fur. Gray bats are believed to groom extensively before beginning their nightly hunt. They then spend the nighttime hours hunting and digesting. Although the habitat range of the gray bat incorporates much of the southeastern United States, the largest summer colonies of gray bats are located within the Guntersville Reservoir. This reservoir, found in northeastern Alabama, contains the Sauta (formerly Blowing Wind) and Hambrick caves which can accommodate over 100,000 gray bats. Gray bats use

title: Hair (musical)

text: revival of "Hair" opened in 1977 for a run of 43 performances. It was produced by Butler, directed by O'Horgan and performed in the Biltmore Theater, where the original Broadway production had played. The cast included Ellen Foley, Annie Golden, Cleavant Derricks and Kristen Vigard. Newcomer Peter Gallagher left the ensemble during previews to take the role of Danny Zuko in a tour of "Grease". Reviews were generally negative, and critics accused the production of "showing its gray". Few major revivals of "Hair" followed until the early 1990s. A movie version of "Hair", with a screenplay by Michael Weller, was

title: Hair (musical)

text: and Andrea McArdle, Jennifer Warnes, and Sérgio Mendes have each contributed versions of "Easy to Be Hard". "Hair" also helped launch recording careers for performers Meat Loaf, Dobie Gray, Jennifer Warnes, Jobriath, Bert Sommer, Ronnie Dyson, Donna Summer and Melba Moore, among others. The score of "Hair" saw chart successes, as well. The 5th Dimension released "Aquarius/Let the Sunshine In" in 1969, which won Record of the Year in 1970 and topped the charts for six weeks. The Cowsills' recording of the title song "Hair" climbed to on the "Billboard" Hot 100. while Oliver's rendition of "Good Morning Starshine" reached

title: The Blue and the Gray (The Simpsons)

text: Homer helps Marge realize that he only has eyes for her and proves that love is still in the Springfield air. Eventually, Marge changes her hair color back to blue to combat her jealousy issues, and Homer dyes "his" hair blue for her. Marge is shocked in this episode to discover that her hair is graying, even though the season 5 episode "Secrets of a Successful Marriage" established that Marge "already" has gray hair, and indeed went prematurely gray ("she's been gray as a mule since she was 17"). However, the writers acknowledge the continuity issues by having Marge's hairstylist

title: John P. Gray (psychiatrist)

text: Insanity", the precursor to the "American Journal of Psychiatry". He was an psychiatric expert in the trial for the assassination of president James A. Garfield Gray believed that insanity was always due to physical causes and that the mentally ill should be treated as physically ill. Gray, John P. "General Paresis, or Incomplete Progressive Paralysis". Albany, NY: Van Benthuysen, 1866. Gray, John P. "Insanity, its Dependence on Physical Disease". Utica, NY: Roberts, 1871. https://archive.org/details/insanityitsdepen00gray Gray, John P. "Insanity: its Frequency and Some of its Preventable Causes". Utica, NY, 1886. Gray, John P. "The United States vs. Charles J. Guiteau, Indicted

title: Human hair color

text: the head (in fact, some white hair will not absorb the color at all). A few gray and white hairs will blend in sufficiently not to be noticeable, but as they become more widespread, there will come a point where a semi-permanent alone will not be enough. The move to 100% permanent color can be delayed by using a semi-permanent as a base color, with permanent highlights. Semi-permanent hair color cannot lighten hair. Hair can only be lightened using chemical lighteners, such as bleach. Bleaching is always permanent because it removes the natural pigment. "Rinses" are a form of temporary

title: Hair loss

text: normally and treatment is not indicated.A similar situation occurs in women taking the fertility-stimulating drug clomiphene. Other causes of hair loss include: Genetic forms of localized autosomal recessive hypotrichosis include: Hair follicle growth occurs in cycles. Each cycle consists of a long growing phase (anagen), a short transitional phase (catagen) and a short resting phase (telogen). At the end of the resting phase, the hair falls out (exogen) and a new hair starts growing in the follicle beginning the cycle again. Normally, about 40 (0–78 in men) hairs reach the end of their resting phase each day and fall out.

title: Artificial hair integrations

text: the desired look. The most popular and commonly available form of hair is known as premium hair. It is sold in most beauty supply stores or online. The roots and tips of hairs are interwoven in premium hair which causes tangling. This is due to the opposing cuticle layers catching onto one another. However, as it is the most inexpensive type of hair, it is a best seller. Premium hair comes in two types: Synthetic fibers are made of various different materials and contain no human hair. Synthetic fibers come in weave (weft) and single strands (bulk) for braids. They

title: Gray (horse)

text: are dark rings with lighter hairs on the inside of the ring, scattered over the entire body of the animal. It is another possible intermediate step in the graying process of the horse. Dappled grays should not be confused with the slight dappling "bloom" seen on horses that are very healthy or slightly overweight, as "bloom" dapples disappear should the horse lose condition. A horse that has completely changed its base coat will either be pure white or "flea-bitten" gray. Flea-bitten gray is a color consisting of a white hair coat with small speckles or "freckles" of red-colored hair throughout.

title: Gray (horse)

text: is how to discern a gray horse from a white horse. White horses usually have pink skin and sometimes even have blue eyes. Young horses with hair coats consisting of a mixture of colored and gray or white hairs are sometimes confused with roan. Some horses that carry dilution genes may also be confused with white or gray. While gray is commonly called a coat color by breed registries, genetically it may be more correct to call it a depigmentation pattern. It is a dominant allele, and thus a horse needs only one copy of the gray allele, that is,

title: Gray (horse)

text: and very slowly on another. Gray horses appear in many breeds, though the color is most commonly seen in breeds descended from Arabian ancestors. Some breeds that have large numbers of gray-colored horses include the Thoroughbred, the Arabian, the American Quarter Horse, the Percheron, the Andalusian, the Welsh pony, and the most famous of all gray horse breeds, the Lipizzaner. People who are unfamiliar with horses may refer to gray horses as "white". However, a gray horse whose hair coat is completely "white" will still have black skin (except under markings that were white at birth) and dark eyes. This

title: Gray (horse)

text: Gray (horse) Gray or grey is a coat color of horses characterized by progressive silvering of the colored hairs of the coat. Most gray horses have black skin and dark eyes; unlike many depigmentation genes, gray does not affect skin or eye color. Their adult hair coat is white, dappled, or white intermingled with hairs of other colors. Gray horses may be born any base color, depending on other color genes present. White hairs begin to appear at or shortly after birth and become progressively lighter as the horse ages. Graying can occur at different rates—very quickly on one horse

title: Hair-grooming syncope

text: Hair-grooming syncope Hair-grooming syncope (also known as hair-combing syncope) is a form of syncope (a fainting disorder) associated with combing and brushing one's hair. It is most typically seen in children aged five to sixteen. Hair-grooming syncope typically manifests as presyncopal symptoms during hair combing, brushing, braiding, trimming, curling, or blow drying. These symptoms are followed by loss of consciousness and sometimes convulsions. Migraines, abdominal pain, "feeling funny" or blurred vision may also occur before or after seizures. Possible causes of the condition include pain or nerve stimulation on the scalp (similar to parade-ground syncope), or compression of blood vessels

title: Human hair growth

text: follicle cells also grow and divide quickly. Consequently, the chemotherapy drugs usually inhibit hair growth. The dose and type of medicine will determine the severity of hair loss. Once the course of chemotherapy has ended, new hair growth may begin after three to 10 weeks. Alopecia is a hair loss disease that can occur in anyone at any stage of life. Specifically Alopecia areata is an autoimmune disease that causes hair to spontaneously fall out. It is mainly characterized by bald patches on the scalp or other parts of the body, and can ultimately cause baldness across the entire body.

title: Good Hair

text: appearance, a roundtable of prominent black women, some from the fashion industry, discussed the issue of hair and self-esteem. Mikki Taylor, beauty and cover editor for "Essence" magazine, said that the term "good hair" is no longer relevant to many young black women. She believes that what is now considered "good hair" is healthy hair. She questioned, When will our hair cease to be political? Every other group of women can do what they want with their hair, and it's not seen as making a statement. We're over that, and we wish everyone else would be over it, too. Ayana

title: Pattern hair loss

text: with finasteride more effectively treats male-pattern hair loss at the vertex than male-pattern hair loss at the front of the head and temples. Dutasteride is a medication in the same class as finasteride but inhibits both type I and type II 5-alpha reductase. Dutasteride is approved for the treatment of male-pattern hair loss in Korea and Japan, but not in the United States. However, it is commonly used off-label to treat male-pattern hair loss. Minoxidil dilates small blood vessels; it is not clear how this causes hair to grow. Other treatments include tretinoin combined with minoxidil, ketoconazole shampoo, dermarolling (Collagen

title: Pattern hair loss

text: is classified as a form of non-scarring hair loss. The Hamilton–Norwood scale has been developed to grade androgenic alopecia in males. Female-pattern hair loss more often causes diffuse thinning without hairline recession; similar to its male counterpart, female androgenic alopecia rarely leads to total hair loss. The Ludwig scale grades severity of female-pattern hair loss. Research indicates that the initial programming of pilosebaceous units of hair follicles begins "in utero". The physiology is primarily androgenic, with dihydrotestosterone (DHT) being the major contributor at the dermal papillae. Men with premature androgenic alopecia tend to have lower than normal values of sex

title: What Remains (novella)

text: What Remains (novella) What Remains () is a novella written by Christa Wolf. It was written in 1979 but was not published until 1990, after the Berlin Wall fell. It is the story of a day in the life of an East German woman whose apartment and occupational activity are openly watched by the Stasi. The story raises the subject of surveillance, particularly the feeling of paranoia, self-doubt, and the disturbances it causes in everyday life; symptoms of fear and nervousness, such as unrest, sleeplessness, weight-loss, and hair-loss. No conversation can be held within her apartment without the telephone jack

title: Gray (surname)

text: Gray (surname) Gray is a surname of that can come from a variety of origins but is typically found in Scotland, Ireland and England. In Ireland, the surname may have a Gaelic source from a phonetic transcription, or Anglicization of McGrath or McGraw. "Mac Giolla Riabhaigh" is sometimes Gray, but is also Anglicized to "McGreevy," "Gallery" and others. In most Scottish instances, the name "Gray" is from the Germanic Scots language, and is cognate with Old English, "græg", meaning "grey", probably as a hair colour. Also among Irish and Scottish Grays is the English name of Anglo-Norman origin. A knight

title: Gray brocket

text: same population, as well. Their tails are white on the bottom, and on their flanks the hair is of a lighter color than that of the rest of the body. The body length of a gray brocket deer can range from and the weight from . In addition to the obvious differences in color, the gray brocket is generally smaller than the red brocket. Separation of the gray brocket and the Amazonian brown brocket using external features is far harder, but the former has a more orange rump, bigger, more rounded ears, wider auditory bullae, and smaller eyes. The gray

title: Gray (horse)

text: color can be confusing. Many new horse owners, not understanding the workings of the gray gene, are disappointed to discover that their dapple gray horse turns completely white a few years later. Other times, people traveling with gray horses who have a pure white hair coat have encountered problems with non-horse-oriented officials such as police officers or border guards who are unclear about a horse who has papers saying it is "gray" when the horse in front of them appears white. To further complicate matters, the skin and eyes may be other colors if influenced by other factors such as

title: Rabbit hair

text: infant coat. The lower quality hair is sometimes used for felt. In temperate climates, the highest quality furs are obtained in winter from rabbits over five months old, when the thickness of the fur is even; at other times of year, varying degrees of hair shedding causes uneven patches in the fur. The coat is also at its thickest at this time of year. The highest quality pelts are suitable for clothing, and typically constitute less than half of all pelts collected. The hair of the Angora rabbit is plucked or shaved and used as fiber, rather than as pelts.

title: Hair loss

text: When more than 100 hairs fall out per day, clinical hair loss (telogen effluvium) may occur. A disruption of the growing phase causes abnormal loss of anagen hairs (anagen effluvium). Because they are not usually associated with an increased loss rate, male-pattern and female-pattern hair loss do not generally require testing. If hair loss occurs in a young man with no family history, drug use could be the cause. There are two types of identification tests for female pattern baldness: the Ludwig Scale and the Savin Scale. Both track the progress of diffused thinning, which typically begins on the crown

title: Hair removal

text: been used in attempts to eradicate lice or to minimize body odor due to accumulation of odor-causing micro-organisms in hair. Some people with trichiasis find it medically necessary to remove ingrown eyelashes. Shaving against the grain can often cause ingrown hairs. Many forms of cancer require chemotherapy, which often causes severe and irregular hair loss. For this reason, it is common for cancer patients to shave their heads even before starting chemotherapy. In extreme situations people may need to remove all body hair to prevent or combat infestation by lice, fleas and other parasites. Such a practice was used, for

title: Leon Gray

text: the 1983 season. He is still considered arguably the best offensive tackle to play for the New England Patriots. Gray was named to the Patriots All-1970s Team, but was notably absent from their 35th (1994) Anniversary Team. Gray worked in construction in the Boston area after his retirement from football. On November 11, 2001, Grey was found dead at his home in the West Roxbury section of Boston. It is believed that he died of natural causes. Gray is survived by a son, Leon, Jr. Leon Gray Leon Gray (November 15, 1951 – November 11, 2001) was an American football

title: Morris Gray

text: in the wilderness" in his parliamentary orations. Among the causes he championed were a provincial labour code, health insurance, child welfare legislation, mother's allowances and old age pensions. His appeals for supplementary aid for old-age pensioners were turned down fourteen years in a row by the governments of Stuart Garson and Douglas L. Campbell. Gray was voted "Citizen of the Year" by the "Winnipeg Tribune" in 1958. He died in Winnipeg at the age of 76. Morris Gray was the uncle of Gerald B. Gray, a Manitoba businessman, philanthropist and community leader. Morris Gray Morris Abraham Gray (May 16, 1889-January

title: Management of hair loss

text: program was terminated. In 2008 researchers at the University of Bonn announced they have found the genetic basis of two distinct forms of inherited hair loss. They found the gene P2RY5 causes a rare, inherited form of hair loss called hypotrichosis simplex. It is the first receptor in humans known to play a role in hair growth. Researchers found that disruption of the gene SOX21 in mice caused cyclical hair loss. Research has suggested SOX21 as a master regulator of hair shaft cuticle differentiation, with its disruption causing cyclical alopecia in mice models. Deletion of SOX21 dramatically affects hair lipids.

title: Western gray squirrel

text: Tail hair is replaced only in the spring. Nesting mothers will use their tail hair to line birthing nests. Western gray squirrels eat berries, nuts, a variety of seeds, and the eggs of small birds. The dental formula for "Sciurus griseus" is . Western gray squirrels reach sexual maturity at 10 to 11 months, and at approximately one year of age, will begin breeding. They mate over an extended period ranging from December through June. Young are born after approximate 44-day gestation period. Juveniles emerge from nests between March and mid-August. Litter sizes range from one to five kits which

title: Root hair curling

text: the chemical at specific points on the root hair. The root hairs curled in the direction of the application, demonstrating the action of a root hair that is attempting to curl around a bacterium. Even application on lateral roots caused curling. This demonstrated that the "nod" factor, not the bacterium itself, causes the stimulation of the curling. Root hair curling Root hair curling is the process by which the root hairs of legume plants curl around bacteria to allow an infection into the cortical cells of the roots to form a nitrogen fixing nodule. Legume plants, just like all plants,

title: Gray Wolves (Chicago)

text: and similar schemes resulted in the formation of the Municipal Voters League in 1896 to throw the Gray Wolves aldermen off the council. Lincoln Steffens, a muck-raking reporter from "McClure's Magazine" was the first to describe these aldermen as gray wolves "for the color of their hair and the rapacious cunning and greed of their natures." Gray Wolves (Chicago) The Gray Wolves were corrupt Chicago aldermen who held office from the 1890s to the 1930s. The Gray Wolves were led by First Ward aldermen "Bathhouse" John Coughlin, "Hinky Dink" Mike Kenna, and Johnny Powers of the Nineteenth Ward. The Chicago

title: Pattern hair loss

text: loss, and assessing for the typical progressive hair loss pattern of androgenic alopecia. Trichoscopy can be used for further evaluation. Biopsy may be needed to exclude other causes of hair loss, and histology would demonstrate perifollicular fibrosis. Finasteride is a medication of the 5α-reductase inhibitors (5-ARIs) class. By inhibiting type II 5-AR, finasteride prevents the conversion of testosterone to dihydrotestosterone in various tissues including the scalp. Increased hair on the scalp can be seen within three months of starting finasteride treatment and longer-term studies have demonstrated increased hair on the scalp at 24 and 48 months with continued use. Treatment

title: Human hair color

text: loss of hair and skin color that may occur as the result of an auto-immune disease. In a preliminary 2013 study, researchers treated the buildup of hydrogen peroxide which causes this with a light-activated pseudo-catalase. This produced significant media coverage that further investigation may someday lead to a general non-dye treatment for grey hair. Malnutrition is also known to cause hair to become lighter, thinner, and more brittle. Dark hair may turn reddish or blondish due to the decreased production of melanin. The condition is reversible with proper nutrition. Werner syndrome and pernicious anemia can also cause premature graying. A

title: Black hair

text: found in its greatest distribution in Asia, pre-Columbian Americas and Africa. Black hair is also particularly common in people of Asia, Eastern Europe, Latin America, Southern Europe and Africa regardless of ethnolinguistic affiliation. For example, Portuguese and Spanish people are particularly noted for their straight or wavy black hair, and it can be combined with either dark (such as brown) or light (such as green, gray or blue) colored eyes. Irish people with these traits are sometimes known as the "Black Irish". Though this characteristic can be seen in people throughout the United Kingdom, it becomes more common in Eastern

title: Jim Gray (UDA member)

text: Jim Gray (UDA member) James Gray (1958 – 4 October 2005), known as Jim Gray, was a Northern Irish loyalist and the East Belfast brigadier of the Ulster Defence Association (UDA), the largest Ulster loyalist paramilitary organisation in Northern Ireland. He was often nicknamed "Doris Day" for his flamboyant clothing, jewellery, and dyed blond hair. Another media nickname for Gray was the "Brigadier of Bling". He was the owner of several bars in East Belfast. Gray, the son of James and Elizabeth Gray, was born in 1958 and raised a Protestant in East Belfast. He had one sister, Elizabeth. He

title: Gray space

text: and Maggor, E. (eds), Normalizing Occupation: The Politics of Everyday Life in the West Bank Settlements, University of Indiana Press. Yiftachel, O. 2009 'Theoretical Notes on 'Gray Cities': the Coming of Urban Apartheid?', Planning Theory, 8: 1: 88-100. Yiftachel, O. 2015, 'From Gray Space to Metrozenship: Reflections on Urban Citizenship', IJURR (International Journal of Urban and Regional Research), Vol 39: 4: 726-737. (see: Roy and AlSayyad, 2004; Dierwechter, 2004; Bayat, 2007; Davis, 2006; Fernandez and Varley, 1998; Miraftab, 2009). Gray space Gray space is a theoretical concept that explains the causes and consequences of a rapid expansion in informal and

title: Beatrice Gray

text: Gray appeared in a number of westerns throughout the 1930s, 1940s and 1950s, many of which were produced by Monogram Pictures. Her other films were with Universal Pictures, including the 1958 movie, "Wild Heritage". She ultimately appeared in three films starring Hoot Gibson and Bob Steele - "The Utah Kid", "Marked Trails" and "Trigger Law" (all 1944). Her son, by husband William H. Gray (the couple later divorced), was actor Billy Gray, best known for his role as Bud Anderson in the television series, "Father Knows Best". Beatrice Gray died of natural causes in Canoga Park, California, on November 25,

title: Long hair

text: Long hair Long hair is a hairstyle where the head hair is allowed to grow to a considerable length. Exactly what constitutes long hair can change from culture to culture, or even within cultures. For example, a woman with chin-length hair in some cultures may be said to have short hair, while a man with the same length of hair in some of the same cultures would be said to have long hair. Males having short, cut hair are in many cultures viewed as being under society's control, such as while in the military or prison or as punishment for

title: Gray (horse)

text: with age, while grays always do. The varnish roan is another unusual coloration, sometimes seen in Appaloosa horses, that, like gray, can change with age, but unlike gray, the horse does not become progressively lighter until it is pure white. Varnish roans are created by the action of leopard complex within breeds such as the Appaloosa and are seldom seen elsewhere. The dilution genes that create dun, cream, pearl, silver dapple and champagne coloring may occasionally result in confusion with gray. Some horses with a particular type of dun hair coat known as a "blue dun", grullo, or "mouse" dun

title: Gray (horse)

text: differing amounts of time to gray out. Thus, graying cannot be used to approximate the age of a horse except in the broadest of terms: a very young horse will never have a white coat (unless it is a true white horse), while a horse in its teens usually is completely grayed out. One must also be careful not to confuse the small amount of gray hairs that may appear on some older horses in their late teens or twenties, which do not reflect the gray gene and never cause a complete graying of the horse. This change in hair

title: Gray fox

text: though exceptionally can weigh as much as . It is readily differentiated from the red fox by the lack of "black stockings" that stand out on the latter and the stripe of black hair that runs along the middle of the tail as well as individual guard hairs being banded with white, gray, and black. The gray fox displays white on the ears, throat, chest, belly and hind legs. In contrast to all "Vulpes" and related (Arctic and fennec) foxes, the gray fox has oval (instead of slit-like) pupils. The dental formula of the "U. cinereoargenteus" is = 42. The

title: Dana Sue Gray

text: Dana Sue Gray Dana Sue Gray (born December 6, 1957) is an American serial killer who murdered three elderly women in 1994. She was caught after a fourth intended victim survived and identified her. Gray says she committed the murders to support her spending habits. She is serving her sentence in the California Women's Prison in Chowchilla. Dana Sue Gray was born Dana Sue Armbrust on December 6, 1957, in southern California to Beverly (née Arnett) and Russell Armbrust. Russell worked as a hair dresser and had three previous marriages before marrying Beverly, who was a former beauty queen. They

title: Hair transplantation

text: slits versus parallel (sagittal) slits, however, has been heavily debated in patient-based hair transplant communities. Many elite hair transplant surgeons typically adopt a combination of both methods based on what is best for the individual patient. Stem cells and dermal papilla cells have been discovered in hair follicles. Research on these follicular cells may lead to successes in treating baldness through hair multiplication (HM), also known as hair cloning. Hair transplantation Hair transplantation is a surgical technique that removes hair follicles from one part of the body, called the 'donor site', to a bald or balding part of the body

title: Gray-handed night monkey

text: River, Cauca River and Sao Jorge River valleys. In Venezuela, it is found to the west and south of Maracaibo. The gray-handed night monkey is a relatively small monkey, with males weighing approximately and females weighing about . It has short, tight fur. The fur on the back ranges from grayish brown to reddish brown. The belly is yellowish. The hair on the back of the hands and feet is the color of light coffee with darker hair tips, a key distinguishing feature from other "A. lemurinus" subspecies. The gray-handed night monkey is arboreal and nocturnal. It and the other

title: Pattern hair loss

text: is measured by lack of mobility, different size and shape, lower replication and altered output of molecules and different expression of markers. The dermal papilla is the primary location of androgen action and its migration towards the hair bulge and subsequent signaling and size increase are required to maintain the hair follicle so senescence via the androgen receptor explains much of the physiology. The diagnosis of androgenic alopecia can be usually established based on clinical presentation in men. In women, the diagnosis usually requires more complex diagnostic evaluation. Further evaluation of the differential requires exclusion of other causes of hair

title: HAIR-AN syndrome

text: have glucose measurements in the diabetic range. A history of diabetic symptoms such as polydipsia, polyuria and weight loss may sometimes, but not always, be present. Other related symptoms to HAIR-AN syndrome include enlarged clitoris, increased libido, glucose intolerance, irregular menstruation, increased blood pressure, infertility. Obesity is also one such symptoms in some women, and is also marked in women affected by PCOS, hirsutism, acanthosis nigricans. Causes of HAIR-AN syndrome are not yet discovered or are not specifically known. But depending on some tests and data collected, HAIR-AN syndrome is thought to be caused by "both genetic and environmental" conditions

title: HAIR-AN syndrome

text: types of abnormalities – blocking antibodies against the insulin receptor "or" genetically absent/reduced insulin receptor number/function – patients with "both" types have high levels of androgens (male hormones). Research on the two types of HAIR-AN demonstrated that patients with both forms of HAIR-AN had very high levels of insulin and, critically, that it was the high insulin that caused the elevation in androgen. The patient affected by HAIR-AN syndrome has insulin resistance inside their body. Insulin resistance is a condition in which the body produces insulin but does not use it properly. This causes the pancreas to produce more insulin

title: Titian hair

text: Titian hair Titian is a tint of red hair, most commonly described as brownish-orange in color. It is often confused with Venetian and auburn. The term originates from Titian, an Italian painter who would often depict women with red hair of this description. Titian has been used as a hair color term in the United States as early as the 1800s, when women were commonly using henna to dye their hair a Titian color. Titian is commonly misused as a synonym for hair colors with similar definitions or hues of color. Titian hair is frequently mistaken with what is called

title: Jeffrey Alan Gray

text: consciousness as a 'late error detector'. The brain was argued to be a 'comparator system' that predicts what should happen, and detects departures from that prediction. It was suggested that consciousness is particularly concerned with novelty and error. He also viewed it as something that causes us to review past actions, and to learn from errors in these actions. Late-error detection permits more successful adaption, if a similar situation emerges in the future. In respect of this, Gray looks at the example of pain. We remove our hands from a hot surface, before consciously feeling the pain of touching it.

title: James A. Gray Jr.

text: James A. Gray Jr. James Alexander Gray Jr. (August 21, 1889 – October 29, 1952) was a former president and chairman of R. J. Reynolds Tobacco Company in Winston-Salem, North Carolina. He was the brother of fellow R.J. Reynolds president Bowman Gray Sr. He also served as a North Carolina state senator for two terms and as a philanthropist, donated to a variety of educational causes in North Carolina. Gray was born in Winston-Salem to Wachovia co-founder James Alexander Gray and the former Aurelia Bowman. After receiving his primary and secondary education in his hometown, Gray graduated from the University

title: Hair theft

text: this crime. What sort of aggression is this? Our girls are sacred and we will apply the law with great force." Not all hair theft is motivated by commercial desire. Sexually motivated hair theft has also been reported – the work of hair fetishists known in the 19th century as "plait cutters" or "hair despoilers". They were said to cut off the braids or tresses of girls attending public gatherings and to take their prizes home to be touched, caressed and admired. Hair fetishists also collected commercially available hair products, blurring the distinction between sexual fetishism and a widespread 19th

title: Leg hair

text: less hairy than they once were, and evolution has changed that. Two different classes of hair are present within our bodies; classes include the coarse and pigmented hair, the pubic region and the thin layer of hair that covers the remaining parts of our bodies. It is when one analyzes the former type of hair, that is found when men and women differ the most. The differences between male and female hair is the color and the coarseness. What is to blame for the more abundance of hair on a man as opposed to a woman, is the higher level

title: Leg hair

text: follicle it pushed older cells out and that is what becomes the leg hair. After the older cells become hard and leave the follicle, they form a hair shaft. The hair shaft is mostly made up of dead tissue and a protein that is known as keratin. It is said that hair growth occurs during the "growing" phase of the follicle, and then retained as dead club hair during the "resting" phase. The old club hair might be lost within the following "growing" phase. Men are seen to be much hairier than women, even though men and women are much

title: Hair roller

text: dryer heats the hair after the rolls are in place. Hair spray can temporarily fix curled hair in place. In 1930, Solomon Harper created the first electrically-heated hair rollers, then creating a better design in 1953. In 1968 at the feminist Miss America protest, protestors symbolically threw a number of feminine products into a "Freedom Trash Can." These included hair rollers, which were among items the protestors called "instruments of female torture" and accouterments of what they perceived to be enforced femininity. More recently, men are participating in the Curlers for Equality challenge, sleeping with rollers in their hair to

title: Hair-pencil

text: the hair-pencils of the insects have been found to come from plants . In particular, pyrrolizidine alkaloids have been found to play a role in male pheromones. These compounds can be formed by de novo synthesis or by modifying a pre-existing pyrrolizidine alkaloid that is consumed from the plant. These base compounds can be either eaten in the larval stage or imbibed in the adult stage. They are so important that stepping on a substance containing these compounds causes immediate proboscis extension in adults. Studies have also been done testing the effects of growth of the hair-pencil organs related to

title: Gray code

text: Gray code. This approach was discussed in a paper in 1996 and then subsequently patented by someone else in 1998 . Other methods of counting in Gray code are discussed in a report by Robert W. Doran, including taking the output from the first latches of the master-slave flip flops in a binary ripple counter. Perhaps the most common electronic counter with the "only one bit changes at a time" property is the Johnson counter. As the execution of program code typically causes an instruction memory access pattern of locally consecutive addresses, bus encodings using Gray code addressing instead of

title: Gray bat

text: habitat locations were always ‘patchy,’ gray bat habitats have become increasingly more isolated and fragmented with human perturbation. Suspected factors contributing to species decline include impoundment of waterways (the creation of dams, which causes flooding in former bat caves), cave commercialization, natural flooding, pesticides, water pollution and siltation, and local deforestation. All North American bat species classified as endangered or threatened by the US. Fish and Wildlife service are cave dwelling species. Of these species, the gray bat congregates in larger numbers at fewer winter hibernacula than any other North American bat. Approximately 95% of gray bats hibernate in 11

title: Asa Gray

text: physical causes stood opposed to the theological view and the study of the harmonies between mind and Nature, and thought it "most presumable that an intellectual conception realized in Nature would be realized through natural agencies". The result of all this is that Gray distanced himself from Social Darwinism. Gray is a critical link in the history of American intellectualism, and his writings that explain how religion and science were not necessarily mutually exclusive have been considered his supreme accomplishment; thereby providing a way for believers in Creationism to consider Darwin's ideas. In 1868 Gray had a year's leave of