Sök:

Sökresultat:

1100 Uppsatser om Organic food - Sida 48 av 74

Effekten av Bisfenol A (BPA) på hanråttors (Rattus norvegicus) reproduktion

Today evidence exist that environmental chemicals deteriorate male sperm quality and that testicular cancer is increasing. Bisphenol A (BPA) is a chemical with estrogenic effects used in the manufacture of polycarbonate plastic and are found in, for instance, plastic boxes, feeding bottles and food containers. Much of the research on how men's reproductive ability is influenced are performed on rats. This review article complies how male rat reproduction is affected by BPA as a model for humans. Studies have investigated how sperm are affected, hormonal changes during reproduction and how reactive oxygen species (ROS) affects sperm.

Indirekta effekter på marklavars abundans och diversitet vid ökad kvävehalt i marken : en jämförelse mellan opåverkad och lågintensivt brukad mark

Lichens are adapted to bright and sparse forests on oligotrophic ground. Due to a slow growth rate and high light demand lichens will suffer from competition in eutrophic environments. Therefore, lichens have disappeared from managed forests where the forest industry has increased the productivity. A reduced abundance of lichens will affect both biodiversity of the forest and the reindeer winter graze lands. It is important to understand how and for how long fertilization affects the abundance and diversity of lichens in order to protect lichen rich ecosystems. We have registered the biomass and number of lichen species in eight plots (four nitrogen rich and four nitrogen deficient) and compared fertilized Sami settlements with their oligotrophic surroundings in the nature reserves of Tjeggelvas.

Neospora caninum hos köttdjur i Sverige :

Neospora caninum is an intracellular parasite that was first recognized in dogs in 1984. The parasite is now one of the most commonly diagnosed infectious causes of abortion in cattle word wide. N. caninum is transmitted to cattle in two ways. They may be infected from eating food contaminated with oocysts from a definitive host or they may be infected in utero from an infected mother. The infection is transmitted efficiently from cow to her offspring and this can occur for generations.

Innovation och kreativitet i en hierarkisk miljö ? Malmö högskola - Medieteknik

Medieteknik är en avdelning på Malmö högskola som dagligen handskas med att vara en innovativ och utvecklande del i en större organisation. Något som skapar möjligheter, men även begränsningar. Högskolans krav, resulterar tillsammans med omvärldens föränderlighet i att avdelningen måste växla mellan struktur, planering, genomförande ? och ? utveckling, innovation av innehåll, utbud, pedagogik. Syftet med rapporten är att undersöka hur en innovativ och kreativ utvecklingsmiljö skapas och bevaras i en organisation/myndighet. Genom en enkätundersökning skapas det empiriska material som, tillsammans med studiet av högskolans villkor, samt förankring i den teoretiska referensramen besvarar den aktuella frågeställningen: Vilka förutsättningar kan påverka en avdelning att arbeta och agera innovativt inom ramen för den större organisationens styrning och krav? Slutsatsen är att Malmö högskola ställs inför en rad motstridiga krav som kräver jämvikt inom organisationen, för att arbetet på avdelningsnivå ska fungera.

Ethics and Animal Experimentation in the Laboratory. A Critical Analysis of the Arguments for"Animal Rights"and"Animal Equality"

Growing up as a child, we had a Dog. To us, it was like a means to an end. That is, hunting other animals for food and for protection, with no special care and treatment given to this animal. Butas days passed by I began to witness a wind of change against such actions. I was made to understand that we were committing two crimes-: using the Dog as a means to an end (for hunting and for eating animals).

Resurser för närstående på Sveriges intensivvårdsavdelningar - En kartläggning

In the care for the critically ill patient the next of kin is of great importance. Their support, love and care for the patient, increases the wellbeing and makes a connection to the patient?s normal lifeworld. For the next of kin to be able to be that support the next of kin needs to be helped to maintain the basic need of for example their sleep, food, hygiene and psychosocial support. The critical care nurse must see to the patient?s whole lifeworld which includes their next of kin.The aim of the study was to identify the resources available for the next of kin in intensive care units in Sweden.

Side effects of biological control agents in agriculture : does the bacteria Bacillus amyloliquefaciens affect the earthworm Aporrectodea longa?

Pathogenic microorganisms pose a big threat towards food production. Meanwhile, negative impacts on humans and environment are seen by the use of pesticides. Biological control agents are an alternative to the use of chemical pesticides, and plant-growth promoting rhizobacteria, such as Bacillus amyloliquefaciens has been shown to have good properties as biocontrol agents. Before these bacteria can be used commercially their impact on other soil organisms has to be evaluated. This thesis looks into what biocontrol bacteria are and how they might affect earthworms.

Koloniträdgården - odling eller rekreation? :

The movement of the allotment gardens reached Sweden in the beginning of the last century. The allotment gardens quickly spread among the big towns from Malmö in the south and to the far north of the country. Today, there are about 42 000 owners of allotment gardens in Sweden. This work will show the differencies and similarities comparing the original ideas of allotment gardens with how they are used today. The specific questions were; what are the reasons to acquire an allotment garden; is it used for raising vegetables and fruit or only for growing flowers; is what is cultivated there also gathered and used or is it cultivated only for the pleasure of gardening; and finally how the owners of the allotment gardens spend their time there ? by cultivating the land or by recreational activities. Literature studies were made as well as an inquiry at one allotment garden area i Lund. The ideas of the original allotment gardens in the beginning of the 20th century were as much based on the need of getting out of the aparment to a healthy environment, as cultivating vegetables for economical reasons.

Möjligheter och problem med organiserat avelsarbete inom renskötseln

The reindeer are kept in extensive pasture systems where the conditions are similar to thosefor wild reindeer. Since the reindeer have special demands on their pasture, it is difficult tokeep them in intensive production systems where they cannot graze selectively. Too manyreindeer on a small area will also facilitate spread of diseases. A selection program forreindeer needs special qualifications according to several different reasons. The purpose withthis literature review is to summarize the factors needed for a reindeer selection program andthe problems and possibilities included.Reindeer grazing right has a special meaning to the Sami and are reserved for them accordingto immemorial rights.

Kläder i hampa - ett miljövänligt alternativ/komplement till bomull?

Hemp has been used for textiles for a long time in history until it became illegal to grow in many countries in the 1930s. It is interesting from an environmental point of view because it doesn?t need any pesticides and in most locations it doesn?t need any irrigation either, compared to cotton, which normally requires big amounts of both pesticides and water for irrigation. Hemp is a bast fiber, which means that the fibers are located on the bast of the stem (on the outer layer of the stem). Therefore they cannot be spun directly, they have to be removed from the stem first.

Oh, look - It's coffee o'clock! : En studie om konsumentens beslutsprocess vid köp av homogena produkter, samt studiet av ett företags arbete med varumärkesstärkande aktiviteter på en homogen produktmarknad

It is important, for companies operating on a homogeneous product market, to understand and adapt to customer needs. Since coffee is a homogeneous product in food retail it is vital for coffee companies to work extensively with differentiation and the fierce competition. The prevailing homogenity makes it difficult for companies to develop the product itself and must therefore work to create added value to the product.The purpose of this thesis is to carry out a study on consumer decision-making when purchasing homogeneous products, and to examine how companies work to strengthen their brand and gain market share in a homogeneous product market. The market that this thesis highlights is the coffee market.To answer the purpose of this thesis the writers have conducted a questionnaire survey regarding consumers? decision-making process and interviewed two marketing managers for two major actors on the coffee market.

Bacterial contamination of eggshells in conventional cages and litter floor systems for laying hens in Jordan

In the country of Jordan, egg production is very important economically, but several bacte-ria are involved in food borne diseases transmitted from eggs or other poultry products. The most important are Salmonella spp., Campylobacter jejuni and Escherichia coli. In Jordan two different housing systems are used for hens in large scale egg production; con-ventional cages and litter floor systems. Eggs from four different farms were analysed and compared to see if a difference could be found regarding the presence of pathogenic bacte-ria on the egg surfaces between these two systems. Total number of aerobic bacteria was analysed, the presence of Salmonella spp., C.

Phosphorus in agricultural soils around the Baltic Sea : comparisons of different laboratory methods as indices for phosphorus leaching to waters

Eutrophication of the Baltic Sea is a serious problem. A major contributing factor is diffuse losses of phosphorus (P) from agricultural land in surrounding countries. In order to estimate P losses, environmental monitoring of small agriculture-dominated catchments is being carried out in most of these countries. Evaluation of the risk of P leaching to waters is usually based on chemical tests originally developed to quantify the amount of soil P available for plant production. The tests are performed in different ways in the different countries and a number of different extraction agents are in use.

All Inclusive : Resemotivation och den eventuella påverkan konceptet har

Travelling All Inclusive implicate that a traveler goes on a trip where food, beverage, room and sometimes activities are included as everything is already paid in advance. The purpose with this study is to examine what it is that have motivated people to travel All Inclusive and to examine how people and travel companies reason about the possible economical effect All Inclusive have on a destination and a local population. We chose to conduct a survey over Facebook. As a complement to the survey and to find out how travel companies reflect on All Inclusives effects, we chose to implement email interviews with Ticket, Solresor and Airtours. The theories in this study focus on travel motivation, travel personalities and All Inclusive's impact on a destination and a local population.

Ostar gjorda på pastöriserad respektive opastöriserad mjölk. En sensorisk jämförelse

En del personer, framförallt osttillverkare och butiksinnehavare, hävdar att det finns sensoriska skillnader mellan ostar gjorda på pastöriserad och opastöriserad mjölk. Frågan är om detta stämmer och vad som i så fall skiljer dem åt smak-, textur- och arommässigt. Det här är en litteraturstudie som bygger på fakta från fyra vetenskapliga artiklar. Artiklarna, som alla är vetenskapligt granskade och publicerade i någon tidskrift, hämtades från någon av databaserna Summon och Food Science and Technology Abstracts (FSTA). I alla artiklar framgick det att det fanns tydliga sensoriska skillnader mellan ostar gjorda på pastöriserad och opastöriserad mjölk.

<- Föregående sida 48 Nästa sida ->