Sökresultat:
1102 Uppsatser om Organic food - Sida 55 av 74
Surhetstillståndet i bäckar uppströmskalkdoserare i Dalarnas län
The acid deposition of sulphur- and nitrogenoxides from combustion of coal and oil cause acidification that lowers pH and gives increased contents of metals and altered aquatic biodiversity in the stream. The liming of lakes and streams, which was introduced to resist the acidification, demand large economic resourses despite of the decreased deposition of the acidifyng substances. Some of the streams are influenced by the acid deposition, while others are naturally acidic. It is therefore importaint to separate the anthropogenically acidified waters from the naturally acidic, in order to optimize the use of governmental fundings for liming. This thesis aims to estimate the acidity status and impact of acidification on 24 catchments upstream liming dispensers, which is part of the liming activities at the County of Dalarna.The acidity status of the streams was classified according to the Swedish Environmental Protection Agency old classification system (Naturvårdsverket 1999) as very acid to acid, with small ability to withstand a pH-change (alkalinity) due to acid deposition.
Barkar det åt skogen för svenskt tidningspapper? : empirisk analys av efterfrågan och företagsstrategier på den svenska marknaden
According to Food and Agriculture Organization newsprint is defined as: Uncoated paper, unsized (or only slightly sized), containing at least 60 percent of mechanical wood pulp. The consumption of newsprint in Sweden was just over 798 000 tonnes in 2009, which represents approximately 90 kg per person. Although there are studies that predict a drastic reduction in newsprint consumption in the Western world, there seems to be a clear difference between forecasts for the future given by statistical analysis of newsprint consumption and forecasts given by experts in the industry. The former predict a continuing increase while the experts see a coming decrease in consumption.In this report, both demand and business strategies of newsprint in Sweden are studied. The study also presents a forecast of the future which is based on historical data and qualitative interviews.
Gymnasieungdomars kostvanor under skoldagen och deras uppfattningar om skolkafeteriornas utbud
The aim of this thesis was to investigate whether the selection of products in the school cafeterias in Uppsala county high schools' comply with NFA's (National Food Administration) recommendations. Furthermore, the intention was to examine pupils´ eating habits before and during the school day, and their views on the school cafeteria´s selection of products. To investigate this, an inventory of school cafeterias in six high schools in Uppsala County, and a survey among 60 pupils were carried out. The results showed that the NFA's recommendations not always were followed. The survey showed that there were healthy products in the cafeterias but unhealthy products nevertheless constituted a large part of the selection.
Validering av prognosmodeller för prediktering av tillväxt för mjölksyrabakterier i rökt skinka
Examensarbetet utfördes på SP-Food and Bioscience (tidigare SIK-Institutet för Livsmedel och Bioteknik) och anknyter till projektet DynahMat (Dynamisk Hållbarhetsdatum för Minimerat Svinn). Syftet med examensarbetet var att undersöka hur väl tillväxten av mjölksyrabakterier predikteras av tre befintliga prognosmodeller jämfört med tillväxten av naturligt förekommande mjölksyrabakterier i MA-packad rökt skinka.Tillväxten av mjölksyrabakterier i rökt MA-packad skinka studerades vid tre lagringstemperaturer (4, 8 respektive 12 °C) och resultat visade att förskämningen av den rökta skinkan skedde snabbare vid en högre lagringstemperatur. De befintliga prognosmodellerna som tillämpades var modeller framtagna av Kreyenschmidt et al. (2010), Mataragas et al. (2006) och Devlieghere et al.
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.
Cultural influences on perceived information structures and assortment varieties - a comparative study of Middle Eastern and Swedish consumers
The purpose of this study was to investigate and compare how and why consumers of different ethnic backgrounds value and prioritize product attributes among food in certain ways. We expected to find culturally bound attitude differences and our aim was to relate those to, and challenge, present knowledge of information structures. Consequently, we also aimed to use this new knowledge of attribute attitudes in connection to assortment variety theory, as attributes constitute important motives to how consumers perceive variety. A theoretical framework was constructed to suit our purpose and function as an analytical tool, consisting of Culture perspectives, Information structures (product attributes), and Assortment variety. In this thesis we focused on attitudes and consumer perspectives and excluded actual behaviour and the retailing perspective.
Älgexplosionen på 70- och 80-talet, ett hot mot sågverket?
The background of this study is an article in the hunting magazine ?Svensk Jakt? where Karl Hedin claims that his sawmills has not noticed any significant moose damages in the timber.
The purpose with the study is to find out the causes to the moose explosion and what it has led to in today?s forests. A questionnaire has been sent out to sawmills in the region Dalarna with the purpose of finding out if sawmills receive moose-damaged timber and what they think about how they foresee future development.
There were two causes of the moose explosion, that had effects on the moose population. The first cause was that the moose hunters wanted to raise the moose population, and by raising the calf shooting and by saving the cows they succeeded. The second cause was changing methods in Swedish forestry.
Älgexplosionen på 70- och 80-talet, ett hot mot sågverken?
The background of this study is an article in the hunting magazine ?Svensk Jakt? where Karl Hedin claims that his sawmills has not noticed any significant moose damages in the timber.
The purpose with the study is to find out the causes to the moose explosion and what it has led to in today?s forests. A questionnaire has been sent out to sawmills in the region Dalarna with the purpose of finding out if sawmills receive moose-damaged timber and what they think about how they foresee future development.
There were two causes of the moose explosion, that had effects on the moose population. The first cause was that the moose hunters wanted to raise the moose population, and by raising the calf shooting and by saving the cows they succeeded. The second cause was changing methods in Swedish forestry.
Tysk smak för svensk mat : en beskrivning av tyska turisters efterfrågan på svensk mat och matupplevelser
Det internationella resandet till Sverige har sedan 1991 ökat med nästan 100 procent. Nästan 35 procent av all turism är utländsk konsumtion, där Tyskland näst Norge är Sveriges viktigaste utlandsmarknad. Var fjärde utländsk turist är tysk och exportdelen inom turismen i Sverige anses vara mer utvecklingsbar än den inhemska delen. I juli 2008 offentliggjorde regeringen en vision formulerad i rapporten ?Sverige det nya matlandet?, där Sverige lyfts fram som det nya matlandet i Europa.
Vuxna individers grad av självtillit till att avstå från sockerhaltiga livsmedel i olika situationer
Syftet med studien var att testa ett nykonstruerat instrument för att beskriva grad av självtillit till att avstå från sockerhaltiga livsmedel i olika situationer. Syftet var även att beskriva vuxna individers intag av sockerhaltiga livsmedel samt att beskriva skillnaden mellan sockerintag och självtillit. Urvalet bestod av 62 patienter som kommit för undersökning eller behandling till privata och folktandvårdskliniker. Data samlades in via enkät. Resultatet visade att 16 (26,2 %) individer åt sockerhaltiga livsmedel minst en gång per dag och 45 (73,8 %) åt sockerhaltiga livsmedel mer sällan än en gång per dag.
Nedfästning av oljemåleri på puts.En fallstudie från salongen på Mostorps slott i Halland
This thesis, designed as a case study, is about complications concerning conservation of a decorative oil paint on lime plaster from the drawing-room in Mostorp castle sited in the county of Halland in south-west of Sweden. The building was built 1878-80 with an exterior of granite. The interior walls were made of clay bricks, lime mortar and lime plaster. The oil paint is applied to a layer of putty. The combination of different materials, which are organic and inorganic, affects the movement caused by internal and external stress.
Kommunikation mellan djurskyddsinspektörer och djurägare
This paper discusses animal welfare, and Sweden, as an EU member state, has a responsibility toensure that official animal welfare inspections are carried out in accordance with communityregulations. The first of January 2009, the welfare moved from the municipalities in to the 21county administrative boards. This restructuring was made due to the deficiencies that the auditconducted by the EU of the FVO (Food and Veterinary Office) 2003 found in the Swedishsystem. Sweden failed in coordination and inspection to ensure animal welfare.The aim of this examination paper is to shed light on animal welfare work operated in the countyof Halland and in Sweden in general. The paper focuses on a few questions.
Feeding preferences and foraging in Larvae of Manduca sexta and Spodoptera littoralis : a laboratory study based on olfaction
Larvae of Lepidopteran Manduca sexta and Spodoptera littoralis are pests of economical importance in several horticultural and agricultural crops. Knowledge of
insect feeding preferences and behavior is crucial in order to find economically and ecologically sustainable solutions to the problems caused by these herbivores.
The aim of this thesis was to study the behavior and the induced feeding preferences in larvae of M. sexta and S. littoralis when reared on certain host plants.
The hypothesis was that larvae of M. sexta would have an innate preference for plants of the Solanaceae family and therefore discriminate the previously experienced nonhost
when faced with the choice between a true host and the previous food source.
Flickors kroppsuppfattning och måltidsmönster : Förändring under pubertet och moderns betydelse
Within the ambulance care in Uppsala County a vacuum splint is used to immobilize fractures on extremities. The research available on which method of immobilizing to prefer during pre-hospital treatment is limited. The purpose of this pilot study was to examine the perceptions of the ambulance personal in Uppsala County on the issue of usability of SAM-splint and vacuum splint when immobilizing extremities. The project was also aimed at researching if SAM-splint could be seen as an alternative or a complement to vacuum splint, and to get an apprehension on any evident differences in patients? perceived pain when treated with the two different approaches. A descriptive comparative study was carried out. All patients, regardless of age and sex, with the need of immobilizing supposed fractures, were included. Patients with suspected femur fracture, collum fracture, or where pre-hospital care was not possible or in question, was excluded.
Beteenden hos geparder i två stora svenska djurparker
Cheetahs in the wild are declining due to hunting, lack of prey, exploitation of habitats and loss of cubs to predators. Those are the main reasons to why cheetahs are kept in captivity today for conservation. Many cheetahs kept in captivity are seen pacing ? a behaviour that arise when the animal is prohibited from performing natural behaviours. It is believed to being attributed to a lack of stimulation in the environment where they are being held.