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Pituri
Pituri, also known as mingkulpa, is a mixture of leaves and wood ash traditionally chewed as a stimulant (or, after extended use, a depressant) by Australian Aboriginal, Aboriginal Australians widely across the continent. Leaves are gathered from any of several species of native tobacco (''Nicotiana'') or from at least one distinct population of the species ''Duboisia hopwoodii''. Various species of ''Acacia'', ''Grevillea'' and ''Eucalyptus'' are burned to produce the ash. The terms "pituri" and "mingkulpa" may also refer to the plants from which the leaves are gathered or from which the ash is made. Some authors use the term, "pituri", to refer only to the plant ''Duboisia hopwoodii'' and its leaves and any chewing mixture containing its leaves.Silcock JL, Tischler M, Smith MA"Quantifying the Mulligan River Pituri, ''Duboisia hopwoodii'' ((F.Muell.) F.Muell.) (Solanaceae), Trade of Central Australia."''Ethnobotany Research & Applications''. 2012; 10:037-044. Retrieved 30 April 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Duboisia Hopwoodii
''Duboisia hopwoodii'' is a shrub native to the arid interior region of Australia. Common names include pituri, pitchuri thornapple or pitcheri. Description The species has an erect habit, usually growing to between 1 and 3 metres in height, with long, narrow leaves. Flowers are white and bell-shaped with violet-striped throats. These appear between June and November in the species' native range followed by purple-black, rounded berries which are 3 to 6 mm in diameter. Like other members of the Solanaceae family such as tobacco, ''D. hopwoodii'' contains nicotine. Pituri Indigenous Australians mix the dried leaves of a small population of ''D. hopwoodii'' growing around the Mulligan River with wood ash to make a variety of pituri, the traditional Aboriginal chewing mixture. ''D. hopwoodii'' plants from this region are high in nicotine and low in nornicotine, whereas those found in some other parts of Australia can have very high levels of nornicotine and are sometimes use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Joseph Bancroft
Joseph Bancroft (21 February 1836 – 16 June 1894) was a surgeon, pharmacology, pharmacologist and parasitology, parasitologist born in England, who emigrated to Queensland, Australia. Early life Bancroft was born in Stretford, near Manchester, Lancashire, the only son of Joseph Bancroft, a farmer, and his wife Mary, ''née'' Lane. He took a five-year apprenticeship with Dr Jeremiah Renshaw at Sale, Greater Manchester, Sale in Cheshire. He later studied at the Manchester Royal School of Medicine, Manchester Royal School of Medicine and Surgery (M.R.C.S., L.S.A., 1859), where he won several prizes. He took his medical academic degree, degree at the University of St Andrews in 1859 and later became a member of the Royal College of Surgeons of Edinburgh, Royal College of Surgeons. He practised at Nottingham until 1864, then emigrated to Queensland after being advised a warmer climate would improve his health. Career in Australia Bancroft arrived in Brisbane on 29 October 1864, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Burke And Wills
The Burke and Wills expedition (originally called the Victorian Exploring Expedition) was an exploration expedition organised by the Royal Society of Victoria (RSV) in Australia in 1860–61. The exploration party initially consisted of nineteen men led by Robert O'Hara Burke, with William John Wills being a deputy commander. Its objective was the crossing of Australia from Melbourne in the south to the Gulf of Carpentaria in the north, a distance of around 3,250 kilometres (approximately 2,000 miles). At that time most of the inland of Australia had not been explored by non- Indigenous people and was largely unknown to European settlers. The expedition left Melbourne in winter. Very bad weather, poor roads and broken-down horse wagons meant they made slow progress at first. After dividing the party at Menindee on the Darling River, Burke made good progress, reaching Cooper Creek at the beginning of summer. The expedition established a depot camp at Cooper Creek, and Burke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Stimulant
Stimulants (also known as central nervous system stimulants, or psychostimulants, or colloquially as uppers) are a class of drugs that increase alertness. They are used for various purposes, such as enhancing attention, motivation, cognition, Mood disorder, mood, and physical activity, physical performance. Some stimulants occur naturally, while others are exclusively synthetic. Common stimulants include caffeine, nicotine, amphetamines, cocaine, methylphenidate, and modafinil. Stimulants may be subject to varying forms of regulation, or outright prohibition, depending on jurisdiction. Stimulants increase activity in the sympathetic nervous system, either directly or indirectly. Prototypical stimulants increase synaptic concentrations of neurotransmitter, excitatory neurotransmitters, particularly norepinephrine and dopamine (e.g., methylphenidate). Other stimulants work by binding to the Receptor (biochemistry), receptors of excitatory neurotransmitters (e.g., nicotine) or by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Richard Helms (naturalist)
Richard Helms (12 December 1842 – 7 July 1914) was a German-born Australian naturalist whose work in botany, zoology, geology, and ethnology covered various parts of Australia and New Zealand. He arrived in Australia in 1858 and worked for a cousin in a Melbourne cigar shop. He travelled to Dunedin, New Zealand, in 1862 and in 1876 began practicing as a dentist in Nelson, New Zealand. He married in 1879 and opened a watchmaking business in Greymouth. References 1842 births 1914 deaths Immigrants to former British colonies and protectorates in Oceania People from the Colony of Victoria Australian naturalists New Zealand naturalists German emigrants to Australia {{Australia-scientist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
South Australia
South Australia (commonly abbreviated as SA) is a States and territories of Australia, state in the southern central part of Australia. With a total land area of , it is the fourth-largest of Australia's states and territories by area, which includes some of the most arid parts of the continent, and with 1.8 million people. It is the fifth-largest of the states and territories by population. This population is the second-most highly centralised in the nation after Western Australia, with more than 77% of South Australians living in the capital Adelaide or its environs. Other population centres in the state are relatively small; Mount Gambier, the second-largest centre, has a population of 26,878. South Australia shares borders with all the other mainland states. It is bordered to the west by Western Australia, to the north by the Northern Territory, to the north-east by Queensland, to the east by New South Wales, to the south-east by Victoria (state), Victoria, and to the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Deserts Of Australia
Deserts cover about , or 18%, of the Australian mainland, but about 35% of the Australian continent receives so little rain, it is practically desert. Collectively known as the Great Australian desert, they are primarily distributed throughout the Western Plateau and interior lowlands of the country, covering areas from South West Queensland, the Far West region of New South Wales, Sunraysia in Victoria and Spencer Gulf in South Australia to the Barkly Tableland in Northern Territory and the Kimberley region in Western Australia. By international standards, the Great Australian desert receives relatively high rates of rainfall, around on average, but due to the high evapotranspiration it would be correspondingly arid. No Australian weather stations situated in an arid region record less than of average annual rainfall. The deserts in the interior and south lack any significant summer rains. The desert in western Australia is well explained by the little evaporation of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Western Australia
Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a land area of , and is also the List of country subdivisions by area, second-largest subdivision of any country on Earth. Western Australia has a diverse range of climates, including tropical conditions in the Kimberley (Western Australia), Kimberley, deserts in the interior (including the Great Sandy Desert, Little Sandy Desert, Gibson Desert, and Great Victoria Desert) and a Mediterranean climate on the south-west and southern coastal areas. the state has 2.965 million inhabitants—10.9 percent of the national total. Over 90 percent of the state's population live in the South-West Land Division, south-west corner and around 80 percent live in the state capital Perth, leaving the remainder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Alice Springs
Alice Springs () is a town in the Northern Territory, Australia; it is the third-largest settlement after Darwin, Northern Territory, Darwin and Palmerston, Northern Territory, Palmerston. The name Alice Springs was given by surveyor William Mills (surveyor), William Whitfield Mills after Alice, Lady Todd (), wife of the telegraph pioneer Sir Charles Todd (pioneer), Charles Todd. Known colloquially as The Alice or simply Alice, the town is situated roughly in Australia's Geographical centre, geographic centre. It is nearly equidistant from Adelaide and Darwin, Northern Territory, Darwin. The area is also known locally as to its Indigenous Australians, original inhabitants, the Arrernte people, Arrernte, who have lived in the Central Australian desert in and around what is now Alice Springs for tens of thousands of years. Alice Springs had a population of 33,990 as of June 2024. The town's population accounts for approximately 10 percent of the population of the Northern Terr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Nicotiana Suaveolens
''Nicotiana'' () is a genus of herbaceous plants and shrubs in the family Solanaceae, that is indigenous to the Americas, Australia, Southwestern Africa and the South Pacific. Various ''Nicotiana'' species, commonly referred to as tobacco plants, are cultivated as ornamental garden plants. '' N. tabacum'' is grown worldwide for the cultivation of tobacco leaves used for manufacturing and producing tobacco products, including cigars, cigarillos, cigarettes, chewing tobacco, dipping tobacco, snuff, and snus. Taxonomy Species The 79 accepted and known species include: * ''Nicotiana acuminata'' (Graham) Hook. – manyflower tobacco or many-flowered tobaccoKnapp et al. (2004) Nomenclatural changes and a new sectional classification in ''Nicotiana'' (Solanaceae) Taxon. 53 (1):73–82. * ''Nicotiana africana'' Merxm. * ''Nicotiana alata'' Link & Otto – jasmine tobacco, sweet tobacco, winged tobacco, Persian tobacco, ''tanbaku'' (in Persian) * ''Nicotiana attenuata'' Torrey ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Nicotine
Nicotine is a natural product, naturally produced alkaloid in the nightshade family of plants (most predominantly in tobacco and ''Duboisia hopwoodii'') and is widely used recreational drug use, recreationally as a stimulant and anxiolytic. As a pharmaceutical drug, it is used for smoking cessation to relieve drug withdrawal, withdrawal symptoms. Nicotine acts as a receptor agonist at most nicotinic acetylcholine receptors (nAChRs), except at two nicotinic receptor subunits (nAChRα9 and nAChRα10) where it acts as a receptor antagonist. Nicotine constitutes approximately 0.6–3.0% of the dry weight of tobacco. Nicotine is also present at Parts-per notation, ppb concentrations in edible plants in the family Solanaceae, including potatoes, tomatoes, and eggplants, though sources disagree on whether this has any biological significance to human consumers. It functions as an plant defense against herbivory, antiherbivore toxin; consequently, nicotine was widely used as an insecti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Nornicotine
Nornicotine is an alkaloid found in various plants including ''Nicotiana'', the tobacco plant. It is chemically similar to nicotine, but does not contain a methyl group. It is a precursor to the carcinogen N-Nitrosonornicotine, ''N''-nitrosonornicotine that is produced during the curing and processing of tobacco. Nornicotine can react in human saliva to form N-Nitrosonornicotine, N-nitrosonornicotine, a known type 1 carcinogen. Synthesis There are several routes for the synthesis of nornicotine. One route is the demethylation of nicotine, which can be accomplished by reaction with silver oxide. \mathrm Another route is the partial reduction of 3-myosmine, which can be accomplished by standard catalytic hydrogenation conditions using palladium as a catalyst or with sodium borohydride.. This reaction gives the racemic product. \mathrm Pharmacology Nornicotine possess high affinity for alpha-6 and alpha-7 subunits of nAChRs. It also inhibits DAT in striatum via nAChR and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
