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1337 Uppsatser om Growth stages - Sida 7 av 90
Tree species traits response to different canopy cover for 34 tree species in an enrichment planted tropical secondary rain forest in Sabah, Malaysia
Tropical rain forests only cover around six percent of the world?s land area and contain around 70 % of the world´s animals and plants. Tropical rainforests have been, and still are, negatively affected by human activities. These activities lead to forest degradation which has negative impacts on production and biodiversity.
Between 1970-1980 forests in Borneo, Sabah, Malaysia, was subjected to intense logging.
Hälsovägledares strategier och underliggandeantaganden vid motivationsarbete till viktnedgång : en intervjustudie om motivation
Syftet var att undersöka fyra hälsovägledares uppfattningar och strategier för att motivera individer till viktminskning. Avsikten var även att utreda vad de bygger sina uppfattningar och strategier på, samt att jämföra deras strategier med befintliga teorier om beteendeförändring såsom Motiverande samtal, Stages of change, Social learning theory och Health belief model. Teorierna valdes då de belyser hur en beteendeförändring kan gå till samt att de varit framgångsrika i tidigare forskning. Studien är kvalitativ och genomfördes med ostrukturerade intervjuer där respondenterna valdes genom ett bekvämlighetsurval. De fyra hälsovägledarna arbetade med att motivera individer till viktnedgång, alla hade utbildning inom hälsofrämjande arbete som varierade mellan en vecka till flera år.
Jämförelse mellan viltbehandlade och obehandlade granplantor : Med inriktning på höjdtillväxt och betesfrekvens
The report is a comparative study between spruce plantations where 4 plants are treated with deer repellents and 4 plantations are untreated. The study aims to provide a base for the Forest Society's future decisions regarding the use of wildlife-repellents. The report indicates that wildlife-repellents work reasonably well for its purpose, the treated stocks were virtually untouched during the planting year and next year while the untreated stocks have been heavily grazed during these years. Growth difference between grazed plants and ungrazed plants found to be virtually non-existent (0, 01 m) of the treated stocks and 0, 07 m in the untreated plants. Because of the growth differences are so small between grazed and no grazed plants, it seems like the treatment of deer-repellent are unnecessary. Unless you know in particularly that the area has a specific problem whit severe deer-grazing..
Näringsbehov hos moderlösa föl
No summary of feeding recommendations for foals exists today, which is why this subject was chosen for a literature study. The aim of this study was to describe nutrient requirements of healthy full term foals and how the feeding should be designed to raise foals if they lose their mother. Mare milk composition changes during lactation to meet the requirements of the suckling foal. Foals are born with enzymes in their small intestine and the concentrations of these follow the consumption patterns of the foal. Microbes colonizes the gut as the foal becomes older and these changes cause foal diarrhea.
Urea som kvävekälla till växande ungnöt
The purpose of this study was to examine whether urea could be an option as a nitrogen source for young cattle, the study was limited to risks related to feeding, growth and feed efficiency. Microbes in ruminants have the ability to convert nitrogen to protein, this has been highlighted by beef producers as they are in search of cheap protein feed resources. Urea can be a worthy source of nitrogen for growing young animals, because of its high nitrogen content and the low price. Studies have shown that the replacement of a portion of the total protein content by urea in diets with low content of crude protein, like corn silage, may improve animal growth and feed efficiency. Replacement of all the true protein with urea can result in reduced feed intake and microbial growth.
Projektverksamhet med samhällsnyttan i fokus : införandeprocessen av SMS-biljetten vid Upplands Lokaltrafik
The aim of this thesis is to explore possible differences between public and private companies? way to manage projects. In order to analyze the managerial aspects, we have studied the project of a new payment system implemented at the public-transport organization Upplands Lokaltrafik (UL). The project enables mobile payment by text message (SMS). Most theory concerning the management of projects is developed for private companies.
Value Investing ur ett Genusperspektiv
In light of the current debate on gender equality and behavioral finance, the study aims to describe whether gender differences in financial stock picking can be explained by the different multiples found within the Value Investing Theory. Furthermore, the study aims to determine which of the four portfolios, value, growth, male or female, that has had the strongest return. The results suggest that there is an association between female and value stocks as well as between male and growth stocks. Out of the four portfolios, the value and female portfolio were on average the best performers with abnormal returns..
"Att känna att man är en deltagare och inte en åskådare" : En kvalitativ studie om hur vägen ut ur hemlöshet kan se ut och upplevas samt hur personer med erfarenhet av att vara hemlösa kan se på samhällets lösningar kring hemlöshet.
This study aims to find out how the way out of homelessness can look and be experienced and in what way persons with experience of being homeless might think about our society´s different solutions to this problem. The study is based on five half-structured qualitative interviews with persons who have experience of being homeless. The theoretical perspectives used to analyze the empirism are ?Stages of Change? and ?The Process of Role Exit?, both dealing with changing processes. Our results show that the way out of homelessness can be long and very hard to achieve, and the change in housing situation can be either a process towards a more and more stable housing or through an opportunity that suddenly appears.Another result shows that people with the experience of being homeless can be negative to the solutions offered by our society but be positive to the idea of Housing First.
Biologiska behandlingsmetoder för rening av rejektvatten från biogasproduktion
In this literature review the characteristics of two free-floating macrophytes, water hyacinth (Eichhornia crassipes) and duckweed (Lemna sp.), and two microalgae, Chlorella and Scenedesmus, have been examined regarding their suitability as efficient nutrient removers in the treatment of wastewater with high levels of nutrients and suspended solids from a biogas plant in Loudden. The needs required for the plants to be able to grow in wastewater and the amounts of biomass they can produce have also been studied. The results show that Chlorella is capable of a very high uptake of nutrients in photobioreactors with high nutrient loadings. With an ammonia uptake maximum value at 10900mg/m2/d Chlorella outshines the other organisms in this study. The test organism that performed the closest to Chlorella in terms of nitrogen uptake was water hyacinth with an uptake about 1602mg/m2/d.
Inhibiting the IGF-1 receptor with the cyclolignan Picropodophyllin: an in vitro study of ovulation, implantation and receptivity in a mouse model
Picropodophyllin (PPP) is an analogue of the anti tumour lignan podophyllotoxin with the unique ability to selectively inhibit the receptor of Insulin like growth factor 1(IGF-1). IGF-1 is believed to play an important part in development of the endometrium facing implantation. With PPP treated mice, studies can be made to measure gene expression from tissue of both treated and untreated mice to compare the role of IGF-1 regarding ovulation, implantation and receptivity. The aim of this study was to analyze gene expression of some steroid hormone receptors and cytokines in ovaries from mice treated with PPP. In this study, seven mice were treated with PPP at different times and tissue was collected.
Bakterietillväxt i strömedel till mjölkkor
The resting area is the most important place in the barn for the dairy cow, sometimes called the heart of the free stall system. Inadequate design of the lying area, and lack of or poor quality of bedding materials may reduce the hygiene of the stall. Poor management regarding the cleanliness of the resting area may lead to poor animal hygiene and increased bacterial growth. This in turn will lead to increased risk for environmental mastitis as well as impairing milk quality through contamination with spores.
In this literature study the most commonly used bedding materials; straw, sawdust, wood shavings, clean sand, recycled sand, peat and recycled manure solids, are compared to one another with regards to their ability to resist bacterial growth. Effects of adding hydrated lime to bedding materials have also been studied.
Most bacteria need humidity and prefer a quite high water activity to be able to grow.
Prestandabaserad design genomkonceptuell energianalys : Performance-based design through conceptual energy analysis
This degree project aims to investigate the potential and possibilities for conceptual energyanalyses in the early stages of the design process. Many key decisions are made in theearly stages of a project regarding the shape and orientation of the building. Conceptualenergy analyses can provide the architects with insight regarding different design option?srelative energy performance.As the demands for more sustainable buildings increases, so does the need for earlyenergy analyses. Performing analyses in the early stage requires many assumptions andguesswork which could lead to a large margin of error.The offering from Autodesk is a module in Revit Architecture/MEP and the stand aloneprogram Project Vasari (under development).
Utveckling av en diameterklassmodell för grandominerade bestånd i Sverige :
Growth models are very useful tools for forestry to predict growth and yield. With growth models and optimising tools you can manage forest stands in a way that maximize benefit and income. There are three major types of growth models. Stand models; stage structured models and single-tree models. The most advanced models give the most accurate forecasts.
Röjningsförbandets betydelse för avverkningsekonomin i södra Sverige :
The aim of this work is to demonstrate how the net present value (NPV) at the time of the first thinning depends on the spacing after pre-commercial thinning, and show how net value from first thinning in same stand is influenced.
This study is performed with models based on non-distant dependent growth models for single trees. Two different growth models have been used, one for cleaning (pre-commercial thinning) and one for thinning. The first one yields stem density distributed over diameter classes. In the second one, (the thinning model), it is possible to choose when thinning should be done, the thinning method, thinning grade and numbers of thinning.
Höjdtillväxt, överlevnad och skador i praktiska etableringar av hybridaspbestånd i södra Norrland, anlagda 2004-2011
Hybrid aspen is a crossbreed between European and North American aspen. It is a fast growing tree species that has shown strong growth in the South of Sweden. The follow-ups that have been made on hybrid aspen stands, have mainly been done on plant material in the South of Sweden. In the North of Sweden, only occasional studies have been made, and the knowledge of Northern hybrid aspen stands is, thus, unsatisfactory.In the South of Norrland, land owners have planted hybrid aspen, but what kind of plants it is, and how well these stands have established, is not ascertained, since data has not been compiled on the subject.The objective of this study is to evaluate practical plantations of hybrid aspen in the South of Norrland regarding height growth, survival and damages. The ambition is to increase the knowledge about practical plantations regarding height growth, survival and damages, and from the conclusions thereof, give recommendations for future establishments of hybrid aspen in the area.For the study, eight hybrid aspen stands in the South of Norrland were localised.