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"-concentrations" - 34 õppematerjali

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Formaldehyde

Formaldehyde Formaldehyde is a colorless, flammable gas at room temperature. It has a pungent, distinct odor and may cause a burning sensation to the eyes, nose, and lungs at high concentrations. Formaldehyde is also known as methanal, methylene oxide, oxymethylene, methylaldehyde, and oxomethane. Formaldehyde can react with many other chemicals, and it will break down into methanol (wood alcohol) and carbon monoxide at very high temperatures. Formaldehyde is naturally produced in very small amounts in our bodies as a part of our normal, everyday metabolism and causes us no harm. It can also be found in the air that we breathe at home and at work, in the food we eat, and in some products that we put on our skin. A major source of formaldehyde that we breathe every day is found in smog in the lower atmosphere. Automobile exhaust from cars without catalytic converters or those using oxygenated ...

Keeled → Inglise keel
4 allalaadimist
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Andmebaasiga Scopus teostatud otsingud

ANDMEBAASIGA SCOPUS TEOSTATUD OTSINGUD Teostatud lihtotsing üldiste märksõnadega: ainsaks kriteeriumiks seejuures on, et otsisõna sisalduma artikli pealkirjas, märksõnana või abstraktselt. OTSIPROFIIL LEITUD ALLIKATE ARV carcinogens AND groundwater 417 health risks AND groundwater pollution 1276 groundwater AND pollution AND problems 3708 groundwater AND health risks AND 275 (carcinogen OR cancer) groundwater AND cancer AND (organisms 289 OR health) groundwater AND ecosystem (cancer OR 0 carcinoma OR toxicology) Teostatud otsing teemaspetsiifiliste märksõnadega: OTSIPROFIIL LEITUD ALLIKATE ARV (releva...

Informaatika → Infootsioskused
8 allalaadimist
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The United States of America

The United States of America (in North America) is a federal republic of 50 states. The total area of the United States is over 9.5 million square kilometres, making it the fourth largest country in the world in area. The capital city is Washington D.C. The major caracteristic of the United States is probably its great variety. Itranges from the Arctic to the subtropical, from the moist rain forest to the arid desert, from the rugged mountain peak to the flat prairie. Althought the total population of the United States is large by world standartst, over 302 million. The country embraces some of the world´s largest urban concentrations as well as some of the most extensive areas that are almost devoid of habitation. The population is highly diverse. In addition to native Americans and the descendants of Africans taken as slaves to America, the national character has been enriched. As to its history, the United States is a relativel...

Keeled → Inglise keel
6 allalaadimist
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Carbon capture and storage

Humans are changeing the planet with their ordinary life. The principle cause of climate change is the increase in carbon dioxide concentrations in the atmosphere. The main cause of that is the burning of fossile fuels. This is leading to the global warming. People have discovered a way to reduce the amount of CO2 in the atmosphere. It is possible to seperate the CO2 from the other gases by adding liquid which is very good at absorbing CO2. Then it can be pumped to underground. Scientist came up with this idea because methane gas has been down there for thousands of years and it has not come up. So they expect that the CO2 won't be coming up either. To be sure of that, they are coing to make a test and drill two wells to take purified CO2, inject it into the ground and monitor the physical changes that CO2 undergoes. This technology is really new and it is unknown to people. It has not been proven yet, so people are scared and concerned...

Keeled → Akadeemiline inglise keel
39 allalaadimist
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IPCC summary

Answers for the IPCC Summary. 1.Radiative forcing is a measure of the influence that a factor has in altering the balance of incoming and outgoing energy in the Earth-atmosphere system and is an index of the importance of the factor as a potential climate change mechanism. 2.The three main things that alter the energy balance of the climate system are the changes in the atmospheric abundance of greenhouse gases and aerosols, in solar radiation and in land surface properties. 3.The two sources for the increased concentration of CO2 in the atmosphere are production, distribution and consumption of fossil fuels and as a by-product from cement production. 4.The two main sources of methane pollution are agriculture and fossil fuel use. 5.Volcanic aerosols are not included to the list because of their episodic nature. 6.The world's oceans absorb more than 80% of heat. 7.The total 20th-century rise is estimated to be 0.17...

Geograafia → Geograafia
5 allalaadimist
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Physical hazards konspekt

Inconvenient Non-ionizing indoor climate Poor radiation lighting (magnetic fields) PHYSICAL HAZARDS Risk of fire and Noise in the working environment: electrical shock Physical Part I – Inconvenient indoor hazards Risk from climate ...

Ergonoomika → Ergonoomika
3 allalaadimist
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Summary of three scientific articles

Antibiotics are one of the greatest success stories of modern medicine – they have transformed our lives. But they may now be endangering lives, too. I chose three articles on the issue that dissert the topic of antibiotics in wastewater. To begin with, for years scientists have been aware of the potential problems of antibiotics being present in wastewater. For now, the research of engineering professor Olya Keen is showing that treatments to clean wastewater may actually be creating new antibiotics and further contributing to the development of antibiotic resistance in the environment. Keen is studying doxycycline, one of the widely used class of antibiotics. Their research to date is showing that chlorine used to treat wastewater is actually changing the makeup of the doxycycline and forming new antibiotics. Subsequently, the question arises: how do all the antibiotics find their way into wastewater? Olya Keen answers: ”Those that a...

Keeled → Inglise keel
4 allalaadimist
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Canada/ Kanada

Canada Canada is a country occupying most of northern North America, extending from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean. It is the world's second largest country by total area, and shares land borders with the United States to the south and northwest. Canada is a federation composed of ten provinces and three territories; in turn, these may be grouped into regions. Western Canada consists of British Columbia and the three Prairie provinces (Alberta, Saskatchewan, and Manitoba). Central Canada consists of Quebec and Ontario. Atlantic Canada consists of the three Maritime provinces (New Brunswick, Prince Edward Island, and Nova Scotia), along with Newfoundland and Labrador. Eastern Canada refers to Central Canada and Atlantic Canada together. Three territories (Yukon, Northwest Territories, and Nunavut) make up Northern Canada. ...

Keeled → Inglise keel
14 allalaadimist
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Short and long term effects of alcohol

Short and long term effects of alcohol Good morning. My name is NIMI. I'm going to talk about short and long term effects of alcohol consumption. Firstly I'll tell you about short term effects and then move on to long term effects. My presentation will take about 5 minutes. If you have any questions, you are welcome to ask them afterwards. Firstly I would focus on the short term effects of alcohol consumption. The amount and circumstances of alcohol consumption play a large part in determining the extent of intoxication; for instance, consuming alcohol after a heavy meal causes alcohol to absorb more slowly. Hydration also plays a role as for determining the extent of hangovers. Initially, alcohol produces feelings of relaxation and cheerfulness, but as a result of further consumption blurred vision and coordination problems generally occure. As far as cell membranes are concerned they are highly permeable to alcohol, once alcohol is ...

Keeled → Akadeemiline inglise keel
62 allalaadimist
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Globaalne soojenemine (inglise keeles)

GLOBAL WARMING Global warming is the observed century-scale rise in the average temperature of Earth's climate system. Since 1971, 90% of the increased energy has been stored in the oceans, mostly in the 0 to 700m region. Despite the oceans' dominant role in energy storage, the term "global warming" is also used to refer to increases in average temperature of the air and sea at Earth's surface. Since the early 20th century, the global air and sea surface temperature has increased about 0.8 °C (1.4 °F), with about two-thirds of the increase occurring since 1980.Each of the last three decades has been successively warmer at the Earth's surface than any preceding decade since 1850. More than 90% certain that most of global warming was being caused by increasing concentrations of greenhouse gases produced by human activities.In 2010 that finding was recognized by the national science academies of all majo...

Keeled → Inglise keel
11 allalaadimist
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HCl lahus

Aim of the work The determination of the concentrations of acid and base solutions through titration. Used compounds HCl solution with an unknown concentration. NaOH solution with a known accurate concentration, indicators phenolphthalein (ff/pp) and methyl red (mp/mr). Equipment Conical flasks (250 cm3), 2 burettes (25 cm3), pipette (10 cm3). Procedure A. Determining the concentration of a hydrochloric acid solution through titration 1. To determine the concentration of the acid solution take the NaOH solution with a known concentration (the standard solution) and pour it into the burette (α in figure 2.2). See that there are no air bubbles near the tip. Fill the burette until the 0-point of the scale. When measuring the level of the solution keep your eyes at the same level with the liquid level. The lower edge of the liquid level has to be at the 0 calibration mark (see fi...

Keemia → Keemia ja materjaliõpetus
8 allalaadimist
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The Anaerobic Energy Systems 7

Exercise Physiology Anaerobic Energy Systems Anaerobic Pathways · Anaerobic Glycolysis (lactate system) ­ 10 s to 2 minutes. · ATP-PCr (phosphate system) ­ Less than 10 s · 200 m Sprint (50-100 m Sprint swimming) ­ Men's WR:19.32 s - Michael Johnson (37.3 km/h) ­ Women's WR: 21.34s - Flo Griffith-Joyner (34 km/h · Energy system: The lactate system · Fuel: Carbohydrate only Anaerobic Glycolysis · Breakdown of glucose or glycogen via special glycolytic enzymes. · First glucose or glycogen must be converted to Glucose 6-phosphate. ­ Glucose to glucose 6-phosphate costs 1 ATP · Glycolysis produces pyruvic acid, without oxygen pyruvic acid is converted to lactic acid. · Net gain 3 moles of ATP (glucose = 2 ATP) Anaerobic Glycolysis · Reserve fuel activated when a person accelerates during race, during the last 200 m of a mile run, or performs a 400 m run or 100 m s...

Keeled → Inglise keel
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Renewable energy

Renewable energy Meriliin Lend Estonian University of Life Sciences Tartu 2013 Topics Renewable energy Solar energy Wind energy Hydroelectric power Geothermal energy Biomass energy Renewable energy Renewable energy comes from sources that naturally renew, or will not run out in our lifetimes. Includes sunlight, wind, water, geothermal heat and various forms of biomass. Renewable energy cannot be exhausted and is constantly renewed. Does not harm the environment. Saves money. Solar energy Solar energy is the technology used to harness the sun's energy and make it useable. Every hour the sun beams onto Earth more than enough energy to satisfy global energy needs for an entire year. Solar energy use has surged at about 20 percent a year over the past 15 years, thanks to rapidly falling prices and gains in efficiency. Solar energy is inexhaustible. Noise free. Does not harm the environmen...

Keeled → Inglise keel
6 allalaadimist
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Thoughts on Air Pollution Essay

Air pollution Every day, the average person inhales about 20,000 liters of air. Every time we breathe, we risk inhaling dangerous chemicals that have found their way into the air. Air pollution includes all contaminants found in the atmosphere. These dangerous substances can be either in the form of gases or particles. Air pollution can be found both outdoors and indoors. Pollutants can be trapped inside buildings, causing indoor pollution that lasts for a long time. The sources of air pollution are both natural and human-based. As one might expect, humans have been producing increasing amounts of pollution as time has progressed, and they now account for the majority of pollutants released into the air. Air pollution has been a problem throughout history. Even in Ancient Romepeople complained about smoke put into the atmosphere. The effects of air pollution are diverse and numerous. Air...

Keeled → Inglise keel
3 allalaadimist
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FORMATION OF MEDIEVAL kARELIA

FORMATION OF MEDIEVAL kARELIA · WHAT WAS BEFORE MIDDLE AGES · WHAT CHANGES OCCURRED WITH IT HOW KARELIA LOOKED LIKE WHEN NEW · ERA DAWNED IN 16th CENTURY GEOGRAPHY OF KARELIA AND ITS RELEVANCE Click to edit Master text styles Major changes in prehistoric times in Second level Karelia Third level Transgression of Ladoga Birth of Vuoksi 3700 BCE Fourth level Birth of Neva 1300 BCE Fifth level Land rise during entire period from Ice Age till today, leading most notably to changes in Vuoksi river's flow Crossroads of trading routes White Sea/Arctic Ocean Upper Volga / Caspian basin Baltic Sea basin Dnepr / Black Sea basin Daugava Waterways: Gulf of Finland, Ladoga, Onega, White Sea, Neva, Vuoksi, Svir, Volkhov, Vyt...

Keeled → Inglise keel
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Dioxins and furans in the atmosphere

D i ox i n s a n d f u r a n s i n t h e atmosphere. Their impact on humans and nature. Emission sources What are dioxines and furans? The term Dioxin is commonly used to refer to a family of toxic chemicals that all share a similar chemical structure and a common mechanism of toxic action. Most dioxins and furans are not manmade or produced intentionally, but are created when other chemicals or products are made. This family includes: seven of the polychlorinated dibenzo dioxins (PCDDs), ten of the polychlorinated dibenzo furans (PCDFs) and twelve of the polychlorinated biphenyls (PCBs). · PCDD · 2,3,7,8TCDD · PCDF · PCB · PCDDs and PCDFs are not commercial chemical products but are trace level unintentional byproducts of most forms of combustion and several industrial chemical processes. Of all of the dioxins and furans, one, 2,3,7,...

Keeled → Inglise keel
4 allalaadimist
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Clay Bricks

Introduction (slide 2) In this presentation I'd like to give a brief overview of clay bricks. I'll speak about 15min to allow time for questions at the end. Firstly clay bricks are known for centuries as one of the most solid and reliable structural elements is set to play a role in reducing global warming. Apart form the many benefits obtained from using clay bricks in construction, such as their durability, insulation properties and aesthetic qualities, recent findings show that they also produce less carbon emissions than any other masonry material. History (slide 3) In more detail the earliest bricks were dried bricks, meaning they were formed from clay- bearing earth or mud and dried usually in the sun until they were strong enough for use. The oldest discovered bricks, originally made from shaped mud and dating before 10000 BC, were found in Mesopotamia related to the first known cities. Ceramic or fired bricks were first introd...

Keeled → Inglise keel
5 allalaadimist
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Extended essay: To what extent does a plant-based diet lower the risk of coronary artery disease?

Extended Essay Research Question: To What Extent Does a Plant Based Diet Lower the Risk of Coronary Artery Disease? Subject: Biology Word Count: 3482 Abstract: Because there has been much debate over whether plant based diets are beneficial or not, I’m willing to learn more about it and since there’s eligible data available on the effects of vegetarian/vegan diets on cardiovascular diseases, my research question is formed accordingly: To what extent does a plant based diet lower the risk of coronary artery disease? The importance of this study lies in my own curiosity and my desire to acquire further knowledge on the prevention and treatment of coronary artery disease. In this investigation I will study two similar prospective studies on plant based diets and cardiovascular diseases, mainly coronary artery disease, to find ou...

Keeled → Inglise keel
2 allalaadimist
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Capillary electrophoresis i.k.

Tallinn University  Natural and exact sciences  Molecular Biochemistry and Ecology                  Maria Gnidenko     Capillary electrophoresis     Essay                   Supervisor: Kert Martma                 Tallinn  2015    Table of contents Acronyms and symbols used  Introduction  History and development  Physical basis and principle of separation  Elektrophoresis  Electroosmotic flow  Separation process  Electrodispersion  Various methods of separation  Capillary zone electrophoresis (CZE)  ...

Keemia → Instrumentaalanalüüs
6 allalaadimist
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Hüdro- ja aeromehaanika

Tallinna Tehnikaülikool Hüdro- ja aeromehaanika EMH5020 Kodutöö Üliõpilane: Kood: XXX Rühm: MATB-64 Juhendaja: Feliks Kaplanski Kuupäev: 27.04.2012 Tallinn 2012 1. What means vorticity? Derive vorticity transport equation in the plane and in the axisymmetric cases? 1.1 Vorticity is equal to the curl of the flow velocity. Vorticity is the tendency for elements of the fluid to "spin." Mathematically, vorticity is a vector field and is defined as the curl of the velocity field. w = curl (u ) = × u 1.2 Vorticity transport equation on the plane From the Navier-Stokes equation u 1 + u ( u ) = - p + g + v 2 u t We derive equation for two dimentional c...

Füüsika → Füüsika
142 allalaadimist
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Report Of Canada

Tallinn English College Report of Canada 8a Teacher: Merike Sisask Composer: Kärt Kalvet 2010 Canada, Kärt Kalvet 8a Canada General Information Canada is in North America. It's area is 9220970 sq km. Canada's population is 313.612.000 people. Canada is divided into 10 provinces and 3 territories. The capital of Canada is Ottawa. Canada has constitutional monarchy. The head of state in Canada's government is the Queen of England. There are two main languages in Canada: English and French. Canada's curreny is Canadian dollar (1 dollar=100 cents[Can$]). The highest peak of Canada is Mount Logan, 5959 metres. The lowest point is sea level. The longest river is the Mackenzie. The climate and geography of Canada vary greatly from temperate in the south to arctic in the north and from islands and plains in the east to mountains in the west. Location...

Keeled → inglise teaduskeel
15 allalaadimist
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Molekulaarbioloogia praksi kontrolltöö vastused

Kordamisküsimused 1.prax: · Mis on rakuliin ja rakkude primaarkultuur, mille poolest erinevad? Primaarne rakukultuur on otseselt koest eraldatud rakkudest koosnev ja piiratud jagunemisvõimega kloon. Rakuliin on imortaliseeritud kloon, mis on võimeline paljunema/ jagunema piiramatult. Immortaliseeritud liine saab kas iseeneslike mutatsiooni tagajärjeliste transformatsioonide kaudu, ka eraldades rakke kasvajatest. Tekitada kunstlikult telomeraasi sisseviimisel rakku. Rakuliin sageli aneupolidne- kromosoomide arv normaalsest erinev (tavaliselt suurem). Eri rakutüübid transformeeruvad eri sagedusega, suured liikidevahelised erinevused. · Milleks on söötmesse lisatud seerum, antibiootikumid ja aminohapped? Et rakud end hästi tunneksid. Seerum-keskkond + mitogeenid=kasvufaktorid ja muud proliferisatsiooniks vajalikud substansid. Antibiootikumid-et bakterid vohama ei hakkaks, meie rakud olid antibioo...

Bioloogia → Molekulaar - ja rakubioloogia...
78 allalaadimist
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RASKEMETALLIDE MÄÄRAMINE AHVENAS

TALLINNA TEHNIKAÜLIKOOL Matemaatika-loodusteaduskond Analüütilise keemia õppetool RASKEMETALLIDE MÄÄRAMINE AHVENAS Magistritöö Kristiina Fuchs Juhendaja: teadur Ph.D ­ Anu Viitak Konsultandid: MSc ­Leili Järv Bioloogiakandidaat Mart Simm Tartu Ülikool Eesti Mereinstituut Tallinn 2009 Sisukord Sisukord..........................................................................................................................2 1. SISSEJUHATUS........................................................................................................3 2. Kirjanduse ülevaade...................................................................................................4 2.1 Raskemetallid............................................................

Bioloogia → Bioloogia
4 allalaadimist
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Keskkonnaprobleemid

Kui asi puudutab nafta ja vee segunemisesse, siis ookeanid kannatavad palju rohkema, kui lihtsalt mõningate lekete all. Kohutavad õnnetused jõuavad ajakirjandusee, aga sadu miljoneid liitreid naftat vaikselt satub merre iga aasta, põhiliselt mitte õnntuste tagajärjel. Nafta lekked põhjustavad haigusi ja tapavad Suured õnnetused ja lekked-isegi suhtliselt vähetähtis osa ookeani reostusest võib olla vägagi laastav. Sama suur kogus naftat võib teha mõnel alal rohkem kahjut kui teises kohas. Näiteks korallrahnud on nafta suhtes tunduvalt tundlikumad, kui liivarannad. Õlise ainega kaetud karvad või suled ei suuda isoleerida mereimetajat või sukelduvat lindu külmast veest ja kui loom puhastab end ta ka neelab naftat. Isegi, kui nafta kahjustus ei ole koheselt surmav võib see tekitada pikaajalist kahju. Kaladel võib see põhjustada maksahaigusi ja kasvuprobleeme. Kui nafta peaks sattuma mõningatele taimedele nt mangroovidele, siis võibsee seal...

Geograafia → Geograafia
116 allalaadimist
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Liha töötlemine

Handbook of Meat Processing Handbook of Meat Processing Fidel Toldrá EDITOR A John Wiley & Sons, Inc., 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...

Keeled → Inglise keel
21 allalaadimist
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1 Tervisekäitumine II loeng 2017 Moodle

Tervisekäitumine, 2 Tervisekasvatus noorsootöös PSP6034.LT Kevadsemester 2017 Sirje Vaask, MPH, PhD Loodus- ja terviseteaduste instituut Õppeaine hindamine 1) Kursus lõpeb arvestusega – vajalikul tasemel läbitud test (valikvastustega). Viimase seminari eelnevalt - arvestus Moodles 9 mai õhtul kell 19- 20 2) järeltest Moodle keskkonnas + vestlus 3) Arvestuse saamise eelduseks on iseseisvate tööde esitamine ja ühise projektitöö esitamine, tervisekäitumise edendamisele suunatud projekti ning selle ettekandmist ja arutelu viimasel korral. Noorsootöö: Tervisekasvatus noorsootöös – moodustab see osa, 60%: hindeline Tervisekäitumine, TE teooriad/mudelid Tervis Tervise edendamine Haigus Elukvaliteet Tervisekaitse Ebavõrdsus tervises Tervisekasvatus Enesetõhusus Rahvatervis Paikkond Haiguste ennetamine Haigestumus,suremus ...

Psühholoogia → Psühholoogia
36 allalaadimist
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Energeetika arengu plaanimine

ELEKTROENERGEETIKA INSTITUUT Referaat Taastvad Energiaallikad Esitamise tähtaeg 14.04.2009 Õppejõud: Hannes Agabus Tudeng: Sergei Belosapko Nikita Naumov Tallinn 2009 Contents: 1. Renewable energy 1.1. Costs................................................................................................................... 2 1.2. Potential future utilization..............................................................................4 1.3. Why Don't We Use More Renewable Energy? ...........................................5 2. Energy Types 2.1. Wind Energy.......................................................................................................6 2.1.1. Annual Generation........................................................................................7 2.1.2. ...

Elektroonika → Energeetika arengu plaanimine
38 allalaadimist
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Kvalitatiivne uurimustöö Emotsioonide regulatsioon ja stress

Emotion regulation in relation.. 1 Emotion regulation in relation to physiological stress response. University Name Research Project Module Code: xx 2007-2008 Supervised by xxx Word count: 7261 Emotion regulation in relation.. 2 Abstract The aim of this study was to investigate the association between psychological and the biological stress response. It is known that humans, interacting with each other or their environment, have emotional reactions that are individually regulated. These emotional responses are linked to changes in autonomic and neuroendocrine systems, which are essen...

Psühholoogia → Psühholoogia
103 allalaadimist
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ERINEVAID TAASTUMISVAHENDEID INIMESE TURGUTAMISEKS

Eesti Hotelli- ja Turismimajanduse Erakool Toitlustusteenindus TT21 Markus-Eerik Mändmets ERINEVAID TAASTUMISVAHENDEID INIMESE TURGUTAMISEKS Referaat esmaabis Õpetaja: Marelle Grünthal-Drell Tallinn 2009 SISUKORD Sisukord...................................................................................................................................... 2 Töö eesmärk................................................................................................................................5 Mineraalainetest eraldi välja: Ca, Mg, Zn, Fe.............................................................................5 Füüsikalised taastumisvahendid..................................................................................................6 Saun...........................................

Meditsiin → Esmaabi
89 allalaadimist
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Konspekt 2 vaheeksami küsimused ja vastused

Olulisemad õhu saasteained ning nende omadused (SO2) ­happevihmu, tekib kütteõli, kivisöe ja põlevkivi põletamisel soojuselektrijaamades, tselluloositehastes ja keemia- ja metallitööstuses. (NOx) - allikaks on fossiilsete kütuste põletamine küttekolletes. NH3-eraldub põllumajandusest ja keemiatööstusettevõtetest (CO2) üks tähtsamaid kasvuhoonegaase, peamiseks allikaks on energeetikatööstus, mis kasutab fossiilseid kütuseid. Teiselt poolt, taimkate ja ookean seovad atmosfääri süsinikdioksiidi, töötades CO2 neeluna ja süsinikuvaruna. tahm ­ eraldavad sisepõlemismootorid. Aerosoolid- Aerosooli üks tähtsaimaid omadusi puhastamise seisukohast on osakeste sadenemiskiirus. Osakeste suurused. Aerosooli ei iseloomusta kunagi kindel osakese suurus, vaid osakeste suuruse jaotus, mida esitatakse diferentsiaalse ja integraalse jaotuskõveraga. 2. Õhu puhastamine aerosoolidest Heterogeensete gaasisegude lahutamine on keemilises tehnoloogias ...

Ökoloogia → Ökoloogia ja...
309 allalaadimist
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Mageveekäsna Ephydatia fluviatilis populatsiooni geneetiline analüüs

Intragenomic Profiling Using Multicopy Genes: The rDNA Internal Transcribed Spacer Sequences of the Freshwater Sponge Ephydatia fluviatilis Liisi Karlep, To~nu Reintamm, Merike Kelve* Department of Gene Technology, Tallinn University of Technology, Tallinn, Estonia Abstract Multicopy genes, like ribosomal RNA genes (rDNA), are widely used to describe and distinguish individuals. Despite concerted evolution that homogenizes a large number of rDNA gene copies, the presence of different gene variants within a genome has been reported. Characterization of an organism by defining every single variant of tens to thousands of rDNA repeat units present in a eukaryotic genome would be quite unreasonable. Here we provide an alternative approach for the characterization of a set of internal transcribed spacer sequences found within every rDNA repeat unit by implementing direct sequencing methodology. The promi...

Bioloogia → Eesti loomad
1 allalaadimist
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TheCodeBreakers

Some of the things you will learn in THE CODEBREAKERS • How secret Japanese messages were decoded in Washington hours before Pearl Harbor. • How German codebreakers helped usher in the Russian Revolution. • How John F. Kennedy escaped capture in the Pacific because the Japanese failed to solve a simple cipher. • How codebreaking determined a presidential election, convicted an underworld syndicate head, won the battle of Midway, led to cruel Allied defeats in North Africa, and broke up a vast Nazi spy ring. • How one American became the world's most famous codebreaker, and another became the world's greatest. • How codes and codebreakers operate today within the secret agencies of the U.S. and Russia. • And incredibly much more. "For many evenings of gripping reading, no better choice can be made than this book." —Christian Science Monitor THE ...

Informaatika → krüptograafia
14 allalaadimist
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ESTONIAN SYMPHONIC MUSIC. THE FIRST CENTURY 1896-1996.

UNO SOOMERE ESTONIAN SYMPHONIC MUSIC. THE FIRST CENTURY 1896-1996. AN OVERVIEW With a Historical and Cultural Summary IN MEMORY OF THE GREAT ESTONIAN COMPOSERS CONTENTS ESTONIA AND THE ESTONIANS FOREWORD IN THE FOLD OF TSARIST RUSSIA. EMERGENCE AND FIRST STEPS ON THE CLASSICAL-ROMANTIC PATH. HISTORICAL INTRODUCTION I. MUSICAL LIFE IN TARTU AT THE TURN OF THE CENTURY. TRAILBLAZERS: ALEKSANDER LÄTE, RUDOLF TOBIAS, ARTUR KAPP. II. THE FIRST DECADE OF THE 20TH CENTURY. ARTUR LEMBA: THE BEGINNING OF ESTONIAN SYMPHONY AND OPERA. III. NEW DEVELOPMENTS IN CULTURAL AND MUSICAL LIFE: THE END OF THE TSARIST PERIOD. THE INDEPENDENT REPUBLIC OF ESTONIA: THE INTRODUCTION OF INNOVATIONS FROM WESTERN ART AND THE EVOLUTION OF NATIONALLY ORIENTED MUSICAL TRENDS. IV. THE TWENTIES. ARTUR KAPP: ROMANTICIST AND DRAMATIST. V. THE INFLUENCE OF NEW WESTERN MUSIC...

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The 4-Hour Body - An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman - Timothy Ferriss

PRAISE FOR The 4-Hour Workweek "This is a whole new ball game. Highly recommended." --Dr. Stewart D. Friedman, adviser to Jack Welch and former director of the Work/Life Integration Program at the Wharton School, University of Pennsylvania "It's about time this book was written. It is a long-overdue manifesto for the mobile lifestyle, and Tim Ferriss is the ideal ambassador. This will be huge." --Jack Can eld, cocreator of Chicken Soup for the Soul®, 100+ million copies sold "Stunning and amazing. From mini-retirements to outsourcing your life, it's all here. Whether you're a wage slave or a Fortune 500 CEO, this book will change your life!" --Phil Town, New York Times bestselling author of Rule #1 "The 4-Hour Workweek is a new way of solving a very old problem: just how can we work to live and prevent our lives from being all about work? A world of in nite...

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