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"acidic" - 28 õppematerjali

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TTX ehk tetrodotoksiin

TALLINNA TEHNIKAÜLIKOOL Matemaatika- loodusteaduskond teaduskond Üldloodusteadus Referaat TTX ehk tetrodotoksiin Plumsugar16 YASB 11 Tallinn 2012 1 Tetrodotoksiin ,,Tetrodotoksiin ei ole alkaloid, steroid või karbohüdraat. Samuti pole see sarnane mitte ühelegi seni teadaolevale aminohappele. Tetrodotoksiin- see on väike molekul väikse molekulmassiga, millel on ainulaadne ,,jalgpalli-kujuline" struktuur." Nii defineeris tertodoksiini Harry Mosher, kes tegi 1960. ndatel kindlaks TTX-i keemilise struktuuri, eraldades mürgise molekuli vesilikest, kes asustasid Stanfordi linnas asuvat järve Lagunita. [1, 2] Tetrodotoksiin (TTX) on merelise päritoluga mürk, mis on oma nime saanud kala järgi, kelles see mürk avastati- Tetraodontiformes (tetras tähendab neli ja odontos hammast) ehk eestikeelse nimetusega jaapani kerakala. TTX on värvit...

Loodusteadused
2 allalaadimist
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Clay Bricks

Clay minerals are size of (point zero one mm)0,01mm. It is consisting primarily of hydrated silicates of aluminum and widely used in making bricks, tiles, and pottery. Clay minerals are typically formed over long periods of time by the gradual chemical weathering of rocks, by low concentrations of carbonic acid and other solvents. These solvents, usually acidic , migrate through the weathering rock after leaching through upper weathered layers. In addition to the weathering process, some clay minerals are formed by hydrothermal activity. Clay deposits may be formed in place as remainder deposits in soil, but thick deposits usually are formed as the result of a secondary sedimentary deposing process. Clay deposits are typically associated with very low energy depositional environments such as large lakes and marine basins. (slide 5)...

Inglise keel
5 allalaadimist
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Exercise Physiology - lecture 4 Blood, gas exchange, transport

Unloading of oxygen to tissue Haemoglobin Saturation & pH Low blood pH (high PCO2) Normal blood pH High blood pH (low PCO2) Everest Oxygen Saturation & pH When the blood becomes more acidic (increased CO2 and H+) the curve shifts to the right. O2 has less affinity with Hb and is unloaded more easily. This rightward shift in the curve is known as the Bohr effect. Active tissues produce CO2 as a by product of oxidative metabolism, so therefore are more acidic. Lungs slightly alkaline Haemoglobin Saturation & Temp 430 C 380 C 200 C Haemoglobin Saturation & Temp When the blood becomes warmer (e.g...

Meditsiin
2 allalaadimist
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309
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Upstream B2 teacher

;P ulJbijlg lsBN 978-1-8432s-569-7 Illllll]ililil]t llll ||||rl 9 x781843x255697x Conlenls UNI T1 househol d & appl i ances; dw el l i ngs ln Searchof the Perfect My Home is my chores;colours& rooms;home H ome(mul ti pl choi e ce) Castle(pp. 5-19) safety TheCharmingPast:Blarney...

Inglise keel
21 allalaadimist
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618
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Upstream Intermediate B2 - Teacher book

;P ulJbijlg lsBN 978-1-8432s-569-7 Illllll]ililil]t llll ||||rl 9 x781843x255697x Conlenls UNI T1 househol d & appl i ances; dw el l i ngs ln Searchof the Perfect My Home is my chores;colours& rooms;home H ome(mul ti pl choi e ce) Castle(pp. 5-19) safety TheCharmingPast:Blarney...

inglise teaduskeel
52 allalaadimist
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Essay on water pollution, global warming, acid rain, deforestation, intensive farming

The simple fact that millions of people live along coastlines and near rivers means that these bodies of water are likely candidates for heavy and destructive pollution. It is hard to know now what our oceans will look like in the future. Just how damaged they will be by pollution is uncertain. Acid rain The term acid rain refers to what scientists call acid deposition. It is caused by airborne acidic pollutants and has highly destructive results. Scientists first discovered acid rain in 1852, when the English chemist Robert Agnus invented the term. From then until now, acid rain has been an issue of intense debate among scientists and policy makers. Acid rain, one of the most important environmental problems of all, cannot be seen. The invisible gases that cause acid rain usually come from automobiles or coal-burning power plants....

Inglise keel
15 allalaadimist
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Liha töötlemine

, Publication Edition first published 2010 © 2010 Blackwell Publishing Blackwell Publishing was acquired by John Wiley & Sons in February 2007. Blackwell’s publishing program has been merged with Wiley’s global Scientific, Technical, and Medical business to form Wiley-Blackwell. Editorial Office 2121 State Avenue, Ames, Iowa 50014-8300, USA For details of our global editorial offices, for customer services, and for information about how to apply for permission to reuse the copyright material in this book, please see our website at www.wiley.com/ wiley-blackwell. Authorization to photocopy items for internal or personal use, or the internal or personal use of specific clients, is granted by Blackwell Publishing, provided that the base fee is paid directly to the Copyright Clearance Cent...

Inglise keel
21 allalaadimist
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20
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Bilberry

Bilberry Bilberry  Bilberry is any of several Eurasian species of low-growing shrubs, bearing edible, nearly black berries. Bilberries are distinct from blueberries but closely related to them.  Bilberryis a plant. The dried, ripe fruit and leaves are used to make medicine.  Bilberriesare found in very acidic , nutrient-poor soils throughout the temperate and subarctic regions of the world.  Are related to North American wild. It can be picked…  Bilberryhas sharp-edged, green branches and black berries, which are ripe for picking in late summer. How it is used  Bilberryis used for improving eyesight, including night vision.  Some people use bilberry for conditions of the heart.  Bilberryis also used for chronic fatigue syndrome, hemorrhoids,...

Inglise keel
1 allalaadimist


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