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412 Uppsatser om Stem cell - Sida 6 av 28
Tvärvetenskaplig undersökning av textil Broderiet från Tämta kyrka
There are several objects of age whose provenance and history has disappeared with time. The purpose of this thesis is to find out which analyzing methods that gives results and how the different methods can be combined and /or established in each other. The investigations centers around an embroidery, belonging to Tämta church, with unknown origin, use and age. The embroidery is long and narrow with applications in the form of dragons and eagles on a ground of velvet cloth. The dragons and eagles are covered with metal threads.
Analys av en meddelandetjänst vid krissituationer baserat på CBS-tekniken(Cell Broadcast Service)
Uppdragsgivare för detta examensarbete är Länsstyrelsen Dalarna. Målet är att undersöka hur lämplig tekniken med CBS (Cell Broadcast Service) baserade textmeddelande är vid viktigt meddelande till allmänheten (VMA-larm). En tjänst som utnyttjar CBS-tekniken kan rädda liv om allmänheten i ett tidigt skede får reda på vad som hänt och vart de ska bege sig.Rapporten visar på hur man kan använda SMS då en krissituation uppstår. Med hjälp av CBS-tekniken skickas meddelandet till specifikt valda basstationer och alla mobiltelefoner som är uppkopplade mot den. Det positiva är att bara de som behöver få veta vad som hänt får meddelandet.Enligt specifikationerna (ETSI) på GSM och 3G-näten i Sverige finns det stöd för utskick av CBS-meddelanden inbyggt i de befintliga näten.
Utveckling av en metod och en utrustning för mätning av bränslesprayers rörelsemängd
A new type of device for measuring thev m& ?rate of fuel sprays from a diesel fuel injector has been developed and the various steps in the development are described. The device works by deflecting all of the sprays from the injector at the same time by using a bell shaped deflector. A load cell consisting of a machined steel part with strain gauges mounted on it measures the resulting force. The shape of the curvature in the deflector bell shape has been evaluated by photographing the flow in a 2D?version of the curve shape.
Virtuell mobbning : Mobbning bland ungdomar genom ny teknik
The purpose of this essay is to draw attention to a rather new phenomena, virtual bullying amongst young people. Bullying has been known for a long time but today, bullying has found new ways of expression. New technology, which includes the Internet and cell phones, has given the bullies new weapons to use in their bullying.The study I have done has been qualitative and contained interviews. Represents from two communities, Playahead and LunarStorm, and two organisations, BRIS and Friends, all together five persons (two persons from LunarStorm) have been interviewed and had the opportunity to tell me their view on virtual bullying.The results show that young people see the new technologies as a valuable prolongation of their reality that they won?t give up if they don?t need to.
Inverkan av betessläpp på celltal och mjölkkvalitet hos mjölkkor :
In Sweden regulations stipulates that dairy cows are kept on pasture, or given the opportunity to spend time outside during a coherent period of between two to four months, depending on region. The transition out to pasture is a big change from the winter period in the stable, especially for the modern high yielding dairy cows. The let out to pasture includes a change in feed, environment, and new routines. There are indications that the milk somatic cell count (SCC) rises in a peak shortly after the let out. The purpose of this study was to see if peaks in the SCC could be observed after the let out, and to study the contribution of inflammatory cells (neutrophils) and if the milk composition are affected.
The study included 35 cows that were kept in stable during the winter.
Gallringsprioritering av contortabestånd :
Extensive planting of the tree species lodgepole pine (Pinus contorta var. latifolia) during the 1970s and 80s has resulted in large areas now being available for commercial thinning. However, the varying quality of the stands creates a problem. The purpose of this study was to investigate, at the Torsby district of the Stora Enso forest company, how well the present computer records of the stands correspond to reality and determine which stands are, from a qualitative perspective, suited for timber production. Finding variables that indicate better stands would give Stora Enso the possibility of selecting qualitative stands which are more profitable to thin.
The study included 32 stands containing at least 70 % Pinus contorta.
Förändras mjölkens proteinsammansättning i separata juverdelar i samband med höga celltal (SCC)? :
Today the milk production per cow is increasing but the milk delivered by the Swedish farmer contains less amounts of fat and protein than earlier. The contents have decreased since 1993. In average the milk contain 4,2 percent fat and 3,4 percent protein. Earlier the fat content in milk was important. Nowadays the dairy?s attention has turned to the milk?s valuable proteins, principally the caseins, which have a considerable nutritional value and are important for several dairy products like cheese and yoghurt.
Trombocyträkning hos katt : en ny metod
Platelet aggregation is a major and common problem in blood samples from cats. This greatly affects the accuracy of counting of the platelets. Because of the difficulties in counting feline platelets, results for patients and reliable reference values for cat platelets are currently so inaccurate as to be almost useless in diagnosis of thrombocytopenia. In this study we used an effective method to prevent platelet aggregation. Blood was collected in CTAD test tubes and prostaglandin E1 was added to the blood sample.
Omvårdnad vid blodprovstagning och venpunktion på fåglar
Blood sampling is one of the most important diagnostic tools in veterinary medicine, and this is also true for avian medicine. A properly collected and handled venous sample can be used for serology, biochemistry and electrolyte analysis, as well as for blood smears, packed cell volume and cell differentiation. Caring for sick birds is a challenge for all veterinary staff. Many birds are easily stressed individuals, and to a very ill bird a big increase in stress level can even be fatal. Avian patients who are presented in a veterinary clinic are often in a poor condition, and blood sampling is an invasive procedure that can cause stress to the patient.
Mätning av stamdiameter med markstående scanner :
Booth for operational planning of harvesting and for long term planning, data is today collected manually. Intensive objective field inventories are usually too expensive. To enhance optimisation of timber flow from forest to industry Moore efficient methods for measuring tree stems of standing trees are needed. The performance of terrestrial laser scanners have improved and these could possibly be used within forestry in the future. The objective of this study was to validate how a terrestrial laser scanner could be used to measure stem diameter, and to test how the errors depend on distance from the scanner and tree species.
Two plots (one pine and one spruce) were used for this study.
Identifiering av konfliktbestånd med hjälp av laserskanning
The interest in harvesting wood fuel in conflict stands has grown in recent years as a consequence of the increased demand for biofuel. Conflict stands are young forests that have not been cleaned and have a large number of stems ha-1with a great height and diameter distribution. This means that traditional field measurements in conflict stands are difficult and very time consuming. Therefore, the forestry sector is in need of new, more efficient inventory methods. In this study, the Lidar data from Lantmäteriet?s (the Swedish mapping, cadastral and land registration authorities) new national height model was used in combination with plots from the Swedish national forest inventory from 2009 to create functions for; height, volume, diameter and number of stems.
"Min sociala anknytning" : -Tolv tjejer om relationen till mobiltelefonen
AbstractTitle: ?My social extension? ? Twelve girls on the relationship with the mobile phone (?Min socialaanknytning? ? Tolv tjejer om relationen till mobiltelefonen)Number of pages: 42 (43 including enclosure)Author: Mattias KöhlmarkTutor: Göran SvenssonCourse: Media and Communication Studies DPeriod: Spring semester 2006University: Division of Media and Communication, Department of Information Science,Uppsala University.Purpose/Aim: To investigate the emotional aspect of mobile phones and the source of thoseemotions.Material/Method: The data presented stems from three unstructured focus groups with participantsat the age of 16-19 years.Main results: The key findings largely supports Vincents theories that the emotional languageguided towards mobile phones comes from the friends it allows us connect with. Also emancipationcan be seen as a driving force behind these emotions.Keywords: mobile phone, mobility, absent present others, emancipation, cell phone, emotion,emotional language,.
Stem injection of different nitrogen forms into young Norway spruce
This master thesis has been a pilot study preceding a forthcoming project of a larger scale with the long term objective to separate the direct effect of added nitrogen on soil processes from indirect effects via trees. The aim of this study has been to investigate the allocation of nitrogen following direct injection of liquid solutions into the xylem of 40 year old Norway spruce. The field site is located at Flakaliden (64°07?N, 19°27?E), approximately 60 km northwest of Umeå, Sweden. A total of 18 trees were selected for treatment, equally divided between three treatments, potassium nitrate, glutamine and water (control).
The role of mast cells and mast cell mediators in the development of atopic dermatitis in a mouse model
Atopic dermatitis (AD) is a complex, often lifelong allergic disease affecting around 10 % of both
dogs and humans. The hallmark symptom is severe pruritus, causing a lowered quality of life. Mast
cells (MCs) are known to play an important part of the immunopathogenesis, promoting a faulty T
helper cell type 2 (Th-2) response which follows by a production of specific immunoglobulin E
(IgE) antibodies towards environmental allergens (Ag). To further investigate the role of MCs and
its mediators in the progression of AD, a low-calcemic vitamin D3 analog (MC903) was used to
induce AD-like symptoms locally on the ears of two different knock-out (KO) mouse strains. The
first strain was Wsh-/- mice deficient in MCs.
Granskning av sjuksköterskans journalföring gällande emotionell hälsa hos patienter som genomgått allogen stamcellstransplantation
Enligt Patientdatalagen (SFS 2008:355), 3 kap, 1 § har fastställts att sjuksköterskan är skyldig att föra journal. I varje patientjournal ska upprättas en omvårdnadsplan vilken ska vara utformad enligt omvårdnadsprocessens fem faser: bedömning, diagnos, mål, planering, genomförande och utvärdering. Omvårdnadsdokumentationen har som syfte att beskriva den vård som patienten erhållit genom att den beskriver vilka beslut som tagits, vilka åtgärder som gjorts samt vilka resultat som uppnåtts. Patienter som genomgår allogen stamcellstransplantation (SCT) upplever ofta en hög psykologisk påfrestning och själva transplantationstillfället är i sig komplext med många behandlingsrelaterade biverkningar som påverkar hela den transplanterades tillvaro både fysiskt och psykiskt. Syftet med uppsatsen var att undersöka sjuksköterskans omvårdnadsdokumentation avseende omvårdnadsprocessen gällande patienters emotionella hälsa (EH) från utskrivningsdatum för SCT och ett år framåt.