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412 Uppsatser om Stem cell - Sida 22 av 28

Solel till Akademiska sjukhuset : möjlig genererad effekt och solcellers estetiska konsekvenser

Today many buildings and it´s nearby surroundings are designed to achieve some kind of environmental goal.The issue concerning energy consumption is currently at focus and it is relevant that we start increase the share of renewable energy. Solar energy is an infinite resource and should therefore be considered when selecting an energy supplier. Uppsala University hospital is facing major restructuring when parts of the existing buildings will be refurbished and a large new building will be constructed. White Architects have developed a study concerning the new building and for some of the existing buildings on the hospital campus. Uppsala County requires tough energy measures and wants the new building to be classified as an eco-building in Whites following work. The classifications will involve high energy source requirements. This work has been conducted to see if solar power can be envisaged as a supplementary energy source for the University hospital and also to investigate the aesthetic impact of solar cells on the new building.

Al-Qaida - mellan tankeprodukt och reell fiende

The present thesis closer examines what has come to be known as al-Qaida, partly from what al-Qaida is considered to be, partly from the consequences a certain picture of al-Qaida might give rise to. Between 1988-2001 most of this thesis sources refers to al-Qaida as a small, organized core group with some degree of cell structure. From 1991 to present days, many of the sources enlarge the picture of al-Qaida. From now on they start to view al-Qaida as either a network in itself or al-Qaida as a part of a larger islamistic network, not only as an organized core group with presumptive bases in Afghanistan. The most recent of theories regarding al-Qaida looks at al-Qaida as an ideology in itself (al-Qaedaism) or al-Qaida as a part of previously existing ideologies (Islamism, Neofundamentalism and Jihadism-Salafism).Al-Qaida is being seen - by scholars, journalists and terrorism experts - as an organization with a core group, a network in itself, part of a larger islamistic network and an ideology of its own or as a part of already existing ideologies.

Den offentliga arbetsförmedlingen : Vilka skillnader finns det mellan den offentliga arbetsförmedlingen och privata arbetsförmedlingar?

During half a century the society has been changed from an industrial to knowledge-driven society. Industry companies have standardized requirements and companies that works with development in production has unique qualifications. The public employment office was created during a time that each tailored to then general requirements were dominating and the adaptation average appropriate worker and appropriate work where general. When the monopoly was stopped, crew companies begun to settle down on the market that flexibly adapt themselves to carried out now specialized needs that require sophisticated adaptation average work and job seekers. Companies lose the confidence for the public employment office and politicians threaten the organization with big closure.

Beslutsunderlag för energianpassade gallringar i Västerbotten

The demand for renewable energy is increasing in Sweden. This consequently increases the pressure for and willingness to pay for forest fuels. One method to extract forest fuel from suitable commercial thinnings is the "long top method? (LT-method). With this method saw logs and non-delimbed tops are recovered, i.e.

Hydrofob interaktion : en resurs för att reducera antibiotikaanvändningen

It is important to know what is normal in the wound healing process in order to determine what happens when a wound does not heal as expected. If the amount of bacteria in the wound gets too large the body will not be able to defend itself and it becomes an infection. Colonization and infection are common elements in wound management and it is often the veterinary nurse role to deal with wounds in a proper manner. Antibiotics are drugs that either kill or inhibit the multiplication of bacteria or fungi, and have been in veterinary medicine for approximately 60 years. Very few new antibiotics are introduced and increased resistance is a major problem that requires everyone to take responsibility to reduce the use of it.

Experimentell studie av kinetiken vid peroxidblekning av pappersmassa

Vid TCF-blekning av pappersmassa är väteperoxid en av huvudkemikalierna. I dagsläget är det svårt att styra blekstegen. Operatörerna måste ta hänsyn till produktionstakt, blekbarheten på massan varierar och fördröjning i trender. PO-bleksteget på Södra Cell Värö har en ungefärlig uppehållstid på 4 timmar och det är först efter så lång tid som man kan se hur en förändring verkligen slår igenom. Överblekning kostar väldigt mycket i kemikalieåtgång och det är därför efterfrågat ett sätt att kunna styra och optimera peroxidblekningssteget.

Hur pålitliga är kommunernas integrerade system för den enskildes integritetsskydd

Dagens organisationer använder sig allt mer av integrerade systemlösningar för att på så sätt kunna bli effektivare i sina processer (Myerson, 2001). Det finns flera orsaker som lig-ger till grund till detta, så som till exempel lägre kostnader för organisationen, och att göra den mer konkurrenskraftig på marknaden (Myerson, 2001). Fördelen med integrerade sy-stem är att de möjliggör för till exempel att två skilda avdelningar inom en organisation kan kommunicera med varandra, med hjälp av mindre eller större nätverk, oberoende av var de än befinner sig i världen. Med hjälp av detta så kan de dela vital information, vilket kan be-hövas inom de respektive avdelningarna. Då de flesta organisationer på ett eller annat sätt arbetar med kundinformation, som till exempel personnummer, så måste det finnas någon form av skydd mot både yttre och inre hot.Dessa hot mot integrerade system i organisationerna leder till misstro hos kunden samtidigt som det även lyfter fram de problem som kan skapas av dem, vilket leder till att kunderna kan komma att fråga sig själva om deras personliga information är tillräckligt skyddade.Syftet med uppsatsen är att undersöka om kommunens befintliga integrerade system är till-räckligt pålitliga när det kommer till individens personliga information.För att kunna nå fram till ett resultat så fokuserade vi arbetet på hur det ser ut i praktiken, eftersom det inte finns så många studier kring integrerade system och säkerhet rörande per-sonlig information.

A literature study on Methicillin-resistant Staphylococcus pseudintermedius (MRSP) : classification, resistance mechanisms, risk factors and clonal distribution

The increased frequency of reported Methicillin-resistant Staphylococcus pseudintermedius (MRSP) is of great concern to small animal healthcare due to limited options of antimicrobial therapy. The aim of this literature study is to investigate 1) characteristics and classification of S. pseudintermedius, 2) resistance mechanisms and emergence of MRSP, 3) risk factors for selection of MRSP, and 4) clonal distribution around the world. S. pseudintermedius is a skin and mucosal commensal in healthy dogs and cats, but can cause infections, including pyoderma. Beta-lactam antibiotics inhibit bacterial growth by binding to the penicillin binding protein (PBP), a vital enzyme in the synthesis of the bacterial cell wall.

Proteinkvalitet och biogena aminer i ensilage ? effekt på mjölkkors hälsa & foderintag

The aim of this paper was to explain protein degradation in silage and protein quality and biogenic amines in silage and their effects on the health of the dairy cows. After harvest-ing, the plant proteases degrade the proteins in the plant. The protein degrades to different fractions with different digestibilites in the rumen. Fraction A contains non- protein nitro-gen which is peptides, free amino acids and amines. True protein is in the fraction B and is further divided into three subfractions depending on their solubility.

Är korta spenar ett problem i samband med mjölkning? :

In some herds it has been observed that extremely short teats have become a problem; with a negative influence on the milking performance. The aim of this study was therefore to investigate to what degree the quality of the teats and the milk in cows with short teats is affected as compared with cows with normal teat length and furthermore if the milking performance could be improved by using a liner adapted to short teats. This study was divided in two parts. In the first part, it was examined if there were any differences between short teats and teats with normal length with reference to the milking performance, udder emptying, teat treatment, milk quality, and udder health. 11 pairs of cows were used and in each pair of cows one cow had teats shorter than 40 mm while the other cow had teats longer than 50 mm.

Molecular analysis of insecticide resistance in pollen beetle (Meligethes aeneus)

The escalating usage of pyrethroids has resulted in an increased awareness about resistance towards pyrethroids in insects. Pyrethroids inhibit voltage-sensitive sodium channels (VSSC) in nerve cell membranes and are composed of synthetic molecules based on pyrethrins present in pyrethrum extracts from Chrysanthemum species. VSSC are transmembrane proteins that are important for electric signalling over the membrane in insects. Mutations in the gene encoding the sodium channel have proved to be a common reason for resistance against pyrethroids. Pyrethroid resistance among pollen beetles is spread all over Sweden and also abroad and is increasing.

Cytostatika behandling: En litteraturstudie om patienters upplevelser av cytostatika behandlingen vid olika cancersjukdomar

Kroppens organ består av många miljoner celler, som har sin uppgift i det organ de befinner sig i. När en cell dör ersätts den med en ny som har samma uppgift. Cellerna samarbetar och kommunicerar via olika signaler, vilket är en förutsättning för att kroppen ska fungera. Cancercellerna delar på sig snabbt vilket leder till celltillväxt. cancer är den vanligaste dödsorsaken i Sverige, efter hjärt- och kärlsjukdomar.

Diesel Dubbelbränsle Teknologi

The work covered in this report includes a literature study of the diesel dual fuel technology(hereinafter referred to as DDF). The literature study covers earlier work that has been doneregarding the use of compressed natural gas (CNG) and diesel in a DDF system. Moreover a onecylinder research diesel engine was fitted with a CNG fuel system for experimental testing. Theinstallation of the engine and the test cell is described. Results from the tests are presentedcovering emissions, heat release and pressure traces from the DDF-concept.During the literature study it was found that most research was related to heavy duty dieselengines.

Isolating microorganisms from marine and marine-associated samples : a targeted search for novel natural antibiotics

The search for antibiotic compounds from the natural environment has been going on for seven decades, ever since penicillin entered the market and antibiotic treatments became routine. The evolutionary pressure put on the pathogenic microorganisms induced a rapid spreading of naturally occurring resistance genes, leaving only the option of finding new antibiotics to treat the resistant pathogens. Microorganisms have been extensively mined for their biosynthetic abilities to produce biologically active compounds. To date, more than 23 000 microbial natural products have been discovered. The Actinomycetales are ubiquitous bacteria that have been used for antibiotic discovery for more than half a century, and over 10 000 natural products have been identified from the order.

Tio fingrar - en uppsats om talsystemens historia

Det decimala positionssystemet kan idag anses vara lika självklart inom matematikundervisning på högstadie- och gymnasieskolan som att vi människor har tio fingrar. Det är sällan det decimala positionssystemet diskute-ras och ifrågasätts. Däremot vet vi att det inte alltid förstås helt och fullt av elever och det behöver lärare vara medvetna om eftersom en förståelse av positionssystemet är väsentlig för att eleverna ska utvecklas vidare inom matematik.En betydande del av syftesbeskrivningen för matematikämnet i LGR11 behandlar matematikens historia. Syftet med detta arbete är därför att göra en övergripande presentation av de talsystem som utvecklats genom historien och därefter diskutera deras för- och nackdelar utifrån tre inriktningar; olika typer av talsystem, beräkning i olika talsystem samt hur dessa tillämpas idag. Slutligen diskuterar vi vilka didaktiska fördelar kunskap om talsy-stem, dess uppbyggnad och utveckling har hos lärare och elever.Arbetet är en litteraturstudie och visar att det genom historien har funnits flertalet taltecken och talsystem som använts i olika kulturer.

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