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Ha Ko Tan
Ha may refer to: Agencies and organizations * Health authority * Hells Angels Motorcycle Club * Highways Agency (now ''National Highways''), UK government body maintaining England's major roads * Homelessness Australia, peak body organisation for homeless people and services * Homosexuals Anonymous an ex-gay program for dealing with unwanted same-sex attractions * Hong Kong Housing Authority Highways Agency, or (HA), former name of Highways England, part of England's Department for Transport Arts, entertainment, and media * ''Ha'' (Doseone album), 2005 * ''Ha'' (Talvin Singh album), 2002 * ''Ha!'' (Killing Joke album), 1982 * "Ha" (song), by Juvenile * Ha! (TV channel), an American all-comedy TV channel * ''Hamar Arbeiderblad'', a Norwegian newspaper * '' Human Action'', a book by the Austrian economist Ludwig von Mises * The Jim Henson Company, formerly known as ha! Language * Ha (Javanese) (ꦲ), a letter in the Javanese script * Ha (kana), in syllabic Japanese script ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Health Authority
Between 1996 and 2002 the English National Health Service was organised under the following health authorities. In 2002 the health authorities were reorganised and their boundaries changed to constitute 28 strategic health authorities, which were reduced in number to 10 in 2006. Prior to 1996 the service was organised according to regional health authorities. ‡ also included part of High Peak in Derbyshire (East Midlands) These Health Authorities were established in 1996. There were a few changes between then and the final form shown above. There were originally separate authorities for Barnet and Enfield & Haringey, for Bexley & Greenwich and Bromley, for East & North Hertfordshire and South Hertfordshire, and for the Isle of Wight & Portsmouth and South-East Hampshire. Also, the area of Norfolk and Cambridgeshire was partitioned between three authorities : Cambridge & Huntingdon, East Norfolk, and North West Anglia. North West Anglia included from Cambridgeshire: Pete ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heth
Heth, sometimes written Chet, but more accurately Ḥet, is the eighth letter of the Semitic abjads, including Phoenician Ḥēt 𐤇 , Hebrew Ḥēth , Aramaic Ḥēth , Syriac Ḥēṯ ܚ, Arabic Ḥā' , and Maltese Ħ, ħ. Heth originally represented a voiceless fricative, either pharyngeal , or velar . In Arabic, two corresponding letters were created for both phonemic sounds: unmodified ' represents , while ' represents . The Phoenician letter gave rise to the Greek eta , Etruscan , Latin H, and Cyrillic И. While H is a consonant in the Latin alphabet, the Greek and Cyrillic equivalents represent vowel sounds, though the letter was originally a consonant in Greek and this usage later evolved into the rough breathing character. Origins The shape of the letter Ḥet ultimately goes back either to the Egyptian hieroglyph for 'courtyard': O6 (compare Hebrew חָצֵר ḥatser of identical meaning, which begins with Ḥet) or to the one for 'thread, wick' represe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemagglutinin (influenza)
Influenza hemagglutinin (HA) or haemagglutinin .html" ;"title="/sup>">/sup> (British English) is a homotrimeric glycoprotein found on the surface of influenza viruses and is integral to its infectivity. Hemagglutinin is a Class I Fusion Protein, having multifunctional activity as both an attachment factor and membrane fusion protein. Therefore, HA is responsible for binding Influenza virus to sialic acid on the surface of target cells, such as cells in the upper respiratory tract or erythrocytes, causing as a result the internalization of the virus. Secondarily, HA is responsible for the fusion of the viral envelope with the late endosomal membrane once exposed to low pH (5.0-5.5). The name "hemagglutinin" comes from the protein's ability to cause red blood cells (erythrocytes) to clump together (" agglutinate") ''in vitro''. Subtypes Hemagglutinin (HA) in influenza A has at least 18 different subtypes. These subtypes are named H1 through H18. H16 was discovered in 2004 on in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypochondriasis
Hypochondriasis or hypochondria is a condition in which a person is excessively and unduly worried about having a serious illness. An old concept, the meaning of hypochondria has repeatedly changed. It has been claimed that this debilitating condition results from an inaccurate perception of the condition of body or mind despite the absence of an actual medical diagnosis. An individual with hypochondriasis is known as a hypochondriac. Hypochondriacs become unduly alarmed about any physical or psychological symptoms they detect, no matter how minor the symptom may be, and are convinced that they have, or are about to be diagnosed with, a serious illness. Often, hypochondria persists even after a physician has evaluated a person and reassured them that their concerns about symptoms do not have an underlying medical basis or, if there is a medical illness, their concerns are far in excess of what is appropriate for the level of disease. It is also referred to hypochondriaism which is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperandrogenic Anovulation
Polycystic ovary syndrome, or PCOS, is the most common endocrine disorder in women of reproductive age. The syndrome is named after the characteristic cysts which may form on the ovaries, though it is important to note that this is a sign and not the underlying cause of the disorder. Women with PCOS may experience irregular menstrual periods, heavy periods, excess hair, acne, pelvic pain, difficulty getting pregnant, and patches of thick, darker, velvety skin. The primary characteristics of this syndrome include: hyperandrogenism, anovulation, insulin resistance, and neuroendocrine disruption. A review of the international evidence found that the prevalence of PCOS could be as high as 26% among some populations, though ranges between 4% and 18% are reported for general populations. Despite its high prevalence, the exact cause of PCOS remains uncertain and there is no known cure. Definition Two definitions are commonly used: * NIH : In 1990 a consensus workshop sponsore ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroxylapatite
Hydroxyapatite, also called hydroxylapatite (HA), is a naturally occurring mineral form of calcium apatite with the formula Ca5(PO4)3(OH), but it is usually written Ca10(PO4)6(OH)2 to denote that the crystal unit cell comprises two entities. Hydroxyapatite is the hydroxyl endmember of the complex apatite group. The OH− ion can be replaced by fluoride, chloride or carbonate, producing fluorapatite or chlorapatite. It crystallizes in the hexagonal crystal system. Pure hydroxyapatite powder is white. Naturally occurring apatites can, however, also have brown, yellow, or green colorations, comparable to the discolorations of dental fluorosis. Up to 50% by volume and 70% by weight of human bone is a modified form of hydroxyapatite, known as bone mineral. Carbonated calcium-deficient hydroxyapatite is the main mineral of which dental enamel and dentin are composed. Hydroxyapatite crystals are also found in pathological calcifications such as those found in breast tumors, as w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyaluronan
Hyaluronic acid (; abbreviated HA; conjugate base hyaluronate), also called hyaluronan, is an anionic, nonsulfated glycosaminoglycan distributed widely throughout connective, epithelial, and neural tissues. It is unique among glycosaminoglycans as it is non-sulfated, forms in the plasma membrane instead of the Golgi apparatus, and can be very large: human synovial HA averages about 7 million Da per molecule, or about 20,000 disaccharide monomers, while other sources mention 3–4 million Da. The average 70 kg (150 lb) person has roughly 15 grams of hyaluronan in the body, one-third of which is turned over (i.e., degraded and synthesized) per day. As one of the chief components of the extracellular matrix, it contributes significantly to cell proliferation and migration, and is involved in the progression of many malignant tumors. Hyaluronic acid is also a component of the group A streptococcal extracellular capsule, and is believed to play a role in virule ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hahnium
Dubnium is a synthetic chemical element with the symbol Db and atomic number 105. It is highly radioactive: the most stable known isotope, dubnium-268, has a half-life of about 16 hours. This greatly limits extended research on the element. Dubnium does not occur naturally on Earth and is produced artificially. The Soviet Joint Institute for Nuclear Research (JINR) claimed the first discovery of the element in 1968, followed by the American Lawrence Berkeley Laboratory in 1970. Both teams proposed their names for the new element and used them without formal approval. The long-standing dispute was resolved in 1993 by an official investigation of the discovery claims by the Transfermium Working Group, formed by the International Union of Pure and Applied Chemistry and the International Union of Pure and Applied Physics, resulting in credit for the discovery being officially shared between both teams. The element was formally named ''dubnium'' in 1997 after the town of Dubna, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henan
Henan (; or ; ; alternatively Honan) is a landlocked province of China, in the central part of the country. Henan is often referred to as Zhongyuan or Zhongzhou (), which literally means "central plain" or "midland", although the name is also applied to the entirety of China proper. Henan is a birthplace of Han Chinese civilization, with over 3,200 years of recorded history and remained China's cultural, economic and political center until approximately 1,000 years ago. Henan Province is home to many heritage sites, including the ruins of Shang dynasty capital city Yin and the Shaolin Temple. Four of the Eight Great Ancient Capitals of China, Luoyang, Anyang, Kaifeng and Zhengzhou, are in Henan. The practice of tai chi also began here in Chen Jia Gou Village (Chen style), as did the later Yang and Wu styles. Although the name of the province () means "south of the ellowriver.", approximately a quarter of the province lies north of the Yellow River, also known as the Hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HA Postcode Area
The HA postcode area, also known as the Harrow postcode area, is a group of ten postcode districts in England, within seven post towns. These cover part of northwest London, plus a very small part of south Hertfordshire. The main sorting office is in Greenford (Green Park Way)Green Park Way Sorting Office, Greenford, UB6 0GG listed at e.g. http://www.118118.com/perivale-london/post-offices/1706309-royal-mail.html and the area served includes virtually all of the London Borough of Harrow, the northeastern part of the London Borough of Hillingdon, the western part of the London Borough of Brent and small parts of the London Boroughs of Barnet and Ealing, while the northern part of HA6 covers a small part of the Three Rivers district of Hertfordshire. __TOC__ Coverage The approximate coverage of the postcode districts: ! HA0 , WEMBLEY , Wembley Central (west), North Wembley, Alperton, Sudbury (south) , Brent, Ealing, Harrow , - ! HA1 , HARROW , Harrow, Harrow on t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ha Gorge
Ha Gorge ( el, Φαράγγι Χά) is a narrow gorge, at the Monasteraki Dakos, on the eastern part of the island of Crete in Greece. It is located in the west slope of Thrypti mountain range, and exits east of Vasiliki village in the plain of Ierapetra. From this location scenic views overlook Pahia Amos and the bay. Being practically inaccessible to people, the gorge maintains a rich and diverse flora and fauna. Its depth is about and the fissure is said to be one of the largest in the world. Late Minoan IIIC sites are in the area. Etymology The name 'Ha Gorge' is derived from the Greek Cretan dialect ''hasko'' ( el, χάσκω) meaning "separate" or "to gape". Location The gorge is located on the north end of the Isthmus of Hierapetra. Access to the geological fault is very difficult. The road approach to the gorge is along the national highway from Iraklio to Agios Nikolaos and then the approach leads through Ierapetra and the village of Episkopi. From this village, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ha, Bhutan
Haa, Ha, or Has is a Thromde or town, and the seat of Haa District in Bhutan. Haa is situated in Haa Valley in the west of the Bhutan bordering Sikkim with ethnic Tibetian and Han majority. The major economic activity is rice production, yak herding and trade with neighbouring China. Haa accommodates The Indian Military Training Team (Also known as IMTRAT). IMTRAT is responsible for the training of the personnel of the Royal Bhutan Army (RBA) and the Royal Bodyguard of Bhutan (RBG). It is the oldest training team sent outside India to a friendly-foreign nation. The place has a religious significance as Lhakhang Karpo and other monasteries are situated there. References Further reading * Tshewang, Lam Pema (200''History of the Has (Ha) Valley''iJournal of Bhutan StudiesVolume 5, Winter 2001 p. 50-56. Thimphu: Centre for Bhutan Studies The Centre for Bhutan Studies and GNH Research (formerly The Centre for Bhutan Studies) is a research institute located in Thimphu, Bhutan, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
