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209 Uppsatser om Productivity - Sida 10 av 14
The effect of additional nitrate and sulfur in the diet on the methane production in cattle
A growing population together with a change in food habits to a more diverse diet containing more animal products such as meat and milk makes the possibility to produce and sell products of cattle a growing market. And at the same time there is an ongoing debate about global warming, where raising cattle is questioned due to their high production of enteric methane. To be able to raise animals in a more environmental friendly way and at the same time improve Productivity in a developing country such as Vietnam would be favorable. The use of feed additives with high electron affinity could decrease the methane production and at the same time improve the gross energy digested. Nitrate and Sulfur are both good electron acceptors, but due to its toxic effects the use of nitrate in feed has been neglected.
Produktivitet med fokus på yrkesarbetare : En komparativ studie av fyra byggprojekt med avseende på mjuka faktorer
I en rapport från Konjunkturinstitutet (2010) framkommer att produktivitets-utvecklingen i den svenska byggbranschen stått still sen mitten på 90-talet. Detta samtidigt som övriga näringslivet ökat sin produktivitet kraftigt under samma period. Denna skillnad i produktivitetsutveckling skulle kunna betyda att det finns mycket arbete kvar att göra för en ökad produktivitet i byggbranschen.För att få en högre produktivitet i byggbranschen krävs det att de som utför arbetet har en strävan efter att vara produktiv. Denna strävan påverkas av mjuka faktorer som t.ex. incitament, engagemang och psykosocial arbetsmiljö.
Buntning av grot med lastbilsmonterad utrustning :
During the transportation of logging residues (LR) the material´s low density is a problem that results in low use of pay-load capacity. Comminution or compression of LR are possible methods to increase pay-loads. In the present thesis studied a bundling machine which was mounted on a truck chassis, and the subsequent transport and crushing. The truck bundler created bundles that were larger and longer than other bundling equipment on the market. The objectives were to determine the total time consumption and its allocation over work element and machinery, to measure dry matter (DM) content of green and brown LR-bundles.
Nyhetsjournalistik : En studie om Aftonbladets nyhetsjournalistiks möjligheter att leva upp till objektiv samhällsgranskning
The purpose of this study has been to find out what possibilities the journalists at the newspaper Aftonbladet have to live up to the proposed ideas and values that defines journalism, as well as how these values are presented to the readers. With this as a starting-point we have studied what kind of society Aftonbladet presents to its readers as well as how this society is supposed to work and also what it`s like. To be able to answer this question we have first researched through theories and earlier studies, literature about journalism, media science, semiotics, history and laws. With the help of the investigation we found fitting tools to perform the analysis. With the theory as groundwork we have, through the qualitative approach analyzed seven news articles from seven Aftonbladet newspapers during one week.Our study shows that the Afonbladet?s journalists have not been able to present occurrences in society in a correct and impartial manner - because they exaggerate insignificant details and neglect to show real attention to serious societal structures by using sensationalism, dramatization and a very superficial approach to the stories that they are conveying.
Motivation för kreativitet : - En studie om hur ledare kan påverka produktiviteten i svenska medieproducerande företag
Since the mid 1900s the organizational perspective in media producing companies has changed. The focus has shifted from just being a laborer to the person behind the effort. The most important for an efficient and smooth organization is the motivation of the employees and the social working environment. Former research argues that managers must be coaches and that crucial factors for the survival of organizations are creativity, innovation and adaptability. With this study we investigate what motivates employees to use their creative skills.
Soil carbon in small-holder plantain farms, Uganda : a comparison between agroforestry and non-agroforestry
Smallholder farmers in Uganda suffer from declining Productivity. With a rapidly increasing population, marginal land is taken into production and the current land
management leads to loss in soil fertility and escalation in soil erosion. There are studies indicating that the use of agroforestry increases soil organic carbon (SOC)
compared to systems without trees. Soils which are high in carbon have many advantages, for example better water holding capacity, which can reduce stress on
crops during drought.
The aim of this study was to determine the effect agroforestry has on SOC concentration in small-holder farming systems in Uganda. The intended system to
study was farms practicing agroforestry methods or not in intercropped plantain (cooking banana) fields.
Animal welfare in Ethiopia : transport to and handling of cattle at markets in Addis Abeba and Ambo
Stressful routines for animal handling can reduce immune function and Productivity of animals. If stakeholders are handling animals aversively, animals will show increased
expressions of fear for humans and higher stress levels which lead to the compromise of animals? welfare. In Ethiopia, there are no legislations to protect animals from suffering or discomfort. The main objective of this study was therefore to analyse welfare of cattle on animal markets in Ethiopia and map out supply chains of animals to these markets.
Innovationsprojekt i en klinisk miljö : Utvecklandet av en designprocess för Sister Kenny Research Center
The Sister Kenny Research Center is part of the Sister Kenny Rehabilitation Institute locatedat the Abbott Northwestern hospital in Minneapolis, USA. The Sister Kenny RehabilitationInstitute provides rehabilitative services, treating more than 70,000 patients a year.The Sister Kenny Research Center strives to optimize the service to patients by nurturingnew innovations in rehabilitation care and treatment. Research projects are conducted ininterdisciplinary so-called Clinical Innovation Teams. As the Sister Kenny Research Center isrecently started, it did not prior to this thesis project have a design process or structured way ofworking in design projects.The outcome of this thesis project is a comprehensive innovation strategy package with a set oftools to enhance the innovativeness at the Sister Kenny Research Center. The strategy packageconsists of three interlinked parts:?A design process adapted to the work environment at the Sister Kenny Research Centerensuring projects are conducted in a structured and innovative manner.?An Innovation Handbook describing the design process to the Clinical Innovation Teamsand providing step-by-step guidance to designing.
Avskogningen av Amazonas
Organic agriculture is financially promoted in Sweden by special environmental support and as consumers we are all encouraged to buy organic food. At the same time scholars at the Swedish University of Agricultural Sciences claim that organic farming does not provide any environmental benefits. The main criticism is that organic farming has lower yields than conventional, which means that more land is needed to produce the same amount of food as in conventional farming, leading to deforestation and loss of biodiversity. As for climate change, the critics claim that the significantly higher Productivity in conventional crop production compared to organic, releases surplus land, which could be used for bio-fuel production and thereby replace the fossil fuels. The critics also claim that organic farming causes higher nutrient leaching than conventional.
Where has the fertilizer gone? Closing the nutrient budget for a eucalyptus fertilization experiment in southern China
An increasing demand for wood products in China has resulted in large areas invested in fast-growing tree plantations of eucalyptus. Eucalyptus plantations are often associated with an intensive management including fertilization. By understanding the effects of fertilization and where in the ecosystem nutrients are accumulated a more sustainable forest management could be achieved. In this study, a nutrient budget including all biomass and soil components was created for Eucalyptus urophylla. The examined nutrients were nitrogen, phosphorus and potassium.
Påverkar jordbruk flödet av akvatiska insekter till land? : Effekter av jordbruk på akvatiskt tillflöde till land vid norrländska bäckar
Streams and riparian zone are closely linked by reciprocal flows of energy and nutrients. A large part of the transportation from water to land is in form of emerged aquatic insects. Conversion of land from forest to agriculture can greatly affect aquatic ecosystems, and due to the close link, also affect the adjacent terrestral zone. Investigating how the presence of agriculture in the surrounding area affects amounts of emergent aquatic insects gives an indication on how agriculture, in turn, may affect the terrestral enviroment. The study was preformed alongside ten streams in northern Sweden; five in landscape transformed by agriculture and five in undisturbed forest areas.
Markberedningsresultat och plantbildning med såddaggregaten Humax 2-4 och KSM-såddskopa
Fördelarna med skogssådd är bland annat att de kan ge stamtäta bestånd med potential att producera träd med bra vedegenskaper och bättre utvecklade rotsystem samt att sådder har en högre biomassaproduktion per ytenhet jämfört med planteringar. Nackdelar som kan nämnas är att de ofta täta förbanden ger ökade kostnader vid eventuella röjningar och att föryngringsresultatet är mera osäkert för sådd än för plantering.Mekaniseringen av skogssådden startade under 1970-talet. Humax och KSM är två kranspetsmonterade aggregat för skogssådd. De har utvecklats för att användas på marker med svår ytstruktur där dragna såddaggregat som harv och högläggare har svårigheter att skapa tillräckligt mycket lämplig såddbädd på grund av att aggregatet inte kommer ner mellan hindren eller att basmaskinen inte klarat av att köra över hela arealen. Fördelen med KSM och Humax är att aggregaten är kranspetsmonterade vilket gör att föraren väljer var aggregatet skall markbereda och på det viset kan markberedningen göras mellan hindren samt att kranarmens räckvidd gör att basmaskinen inte behöver köra över hela arealen som skall markberedas.
Flerträdshantering i slutavverkning
Flerträdshantering har sedan länge främst förekommit i gallringar och vid skörd av biobränslesortiment. På senare år har svenska och kanadensiska forskare även gjort tidsstudier på tekniken i slutavverkningar där resultaten visar på en ökning av produktiviteten. Inom Holmen Skog har tekniken använts i slutavverkningar under ett par års tid men kunskap om vilken typ av skog den bör användas i och potentialen är okänd. Syftet med denna studie var att kvantifiera potentialen för flerträdshantering i slutavverkning inom Holmen Skog och beskriva de skogliga förutsättningarna. Det gjordes även en skattning av produktivitetsökningen och en maskinkostnadskalkyl för flerträdshanteringens effekter på skördarens drivningskostnad.
Studien utfördes enligt följande: Stamnotor extraherades från slutavverkade trakter där flerträdshantering användes.
The effect of vegetable fat on cheese yield and cheese properties
The production of cheese is in continuous development with objectives to in-crease Productivity, achieve changes in shelf life and functional properties of the products. One concept in the development is to substitute milk fat with vegetable fats and oils in the manufacture of cheese.
The objective of this study was to investigate effects on cheese yield and cheese quality of 4 different semi-hard analogue cheese products produced by substituting milk fat with vegetable fat, each analogue cheese with a specific mixture of vegeta-ble fat. As reference a cheese produced with anhydrous milk fat was used.
The yield and recovery of fat and protein were determined by recording the weights of each cheese direct after press and after 20±2 days of storage and analysis of the composition of the cheeses after 20±2 days of storage. The cheese was fur-ther subjected for texture profile analysis in a TA-XT Plus Texture Analyser and analysed with Differential Scanning Calorimetry (DSC) to examine whether the fat behaves similar in the cheese as in pure form in respect to its thermal properties.
The cheese yield was not significantly different when using different fats. Differ-ent amounts of water were absorbed during the water cooling.
Breeding practices of Red Maasai sheep in Maasai pastoralist communities
A survey was undertaken to understand sheep management, breeding practices and selection criteria for Red Maasai sheep in Maasai pastoralist communities in Kajiado District, Kenya. Differences between North and South Kajiado District were investigated to gain knowledge about farmers having different prerequisites and how it can affect the sheep production. The reason for keeping sheep and the specific breeds show the multiple objectives of the Maasai farmers. Adaptive traits, such as resistance to diseases and droughts, and productive traits, such as increased growth and carcass weight, were both ranked highly. In addition to this, the sheep has a social and traditional value in Maasai culture.