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163 Uppsatser om Interspecies reproduction - Sida 4 av 11
Kålgallmygga, Contarinia nasturtii Kieffer : en växtskadegörare på kål
The purpose of this paper is to examine what problems cabbage growers have with the
Swede Midge. The last few years the Swede Midge, Contarinia nasturtii, has become
a larger problem for cabbage growers in several countries in Europe as well as in
Sweden. In Canada the problems are so severe that the midge is classified as a
quarantine pest and therefore certain rules have to be followed. I have collected facts
of the biology, host plants and reproduction of the Swede Midge, as well as the
growers experiences and the occurrence of the midge in Canada, Europe and Sweden.
The Swede Midge is hard to control because of its short life cycle and the larvae are
protected between the heartleaves of the plant. When the larva feeds on the growth
point the plant becomes distorted, in some cases several heads develop or none at all.
When the midge infests spring rape its flower buds become undeveloped and rosette
like.
Brunstbeteendets relation till gyltans intag av genistein
Many scientists agree that phytoestrogens could have an effect on the reproduction of an animal. The question is now why and what mechanisms that play an important role. This paper has been focusing on the estrus behavior of gilts by use of a behavioral study. Some of the gilts were given additional feed with the phytoestrogen genistein which commonly occurs in the feed as a part of soybean products. Blood samples were collected and analyzed for progesterone and estradiol concentrations.
Effekten av arktiskt klimat på inre kvalitet hos bär
This project is a literature study with the hypothesis that Arctic climate has a positive effect on the accumulation of metabolites in berries. Plant metabolites are often divided into primary and secondary metabolites. Primary metabolites such as proteins and nucleic acids are essential for cell function, while secondary metabolites are often non-essential, but have important functions regarding reproduction and survival. The berries mentioned in this project are from the families Ericaceae, Rosaceae, Elaeagnaceae och Grossulariaceae.The conclusion drawn from this literature study is that it is not obvious what favours accumulation of metabolites in berries. Other factors aside from climate affect the production of secondary metabolites, such as time of harvest, cultivars and ripeness.
The genetic background of oxytocin and its importance for maternal behaviour of sows
Oxytocin is today widely spoken of as a "feel good" hormone. Recent research has increased interest in the hormone and its role in social and sexual interactions, as well as its importance for complex behavioral patterns. There is evidence that oxytocin is released during physical contact and is said to suppress anxiety and stress. In animals and humans, oxytocin, which is a neuropeptide and likewise a hormone, is necessary for parturition and lactation. Synthesis of oxytocin occurs in brain neurons and in specific organs involved in reproduction.
Sterilisering som socialpolitisk åtgärd : En dokumentstudie om de föreställningar som bidrog till skapandet av ett socialt problem där sterilisering förespråkades som åtgärd.
In the year of 1935 Sweden started to apply the practice of their first sterilizing laws. In this thesis 2 sterilizing laws are considered. The laws regulated those individuals who were not considered appropriate for reproduction. The sterilizing laws themselves are based on several large investigative studies on how to evaluate and categorize different individuals. The purpose of my thesis is to examine through a literature study how these individuals considered for sterilization were valued and how social problems were created to fit the character features of these people. I also look at how sterilization became an acceptable method to deal with these constructed social problems. The materials I have studied include 3 pre-studies and the 2 laws about sterilization which were the result of these pre-studies. I found that the motives behind the sterilizations were social, economical and genomic hygienical.
Fågelreproduktion med fokus på värphöns
Syftet med denna litteraturstudie är att beskriva fåglarnas reproduktion och hur den skiljer sig från däggdjurens. I studien har störst vikt lagts på värphöns men många aspekter som beskrivs gäller även för vilda fåglar. Reproduktionen beskrivs översiktligt för både värphöna och tupp.
Reproduktionsorganen beskrivs anatomiskt, fysiologiskt och histologiskt samt en del om det endokrina systemet och dess påverkan på hönsens reproduktion ingår också. I uppsatsen
beskrivs även hur ljuset kan påverka framförallt hönans äggläggningscykel. Slutsatsen av denna litteraturstudie är att fåglarnas reproduktionsorgan ser annorlunda ut och har flera funktioner som inte är analoga med däggdjurens, men det finns också vissa likheter.
Det är ingen slump, det handlar om klass : Om klasstillhörighetens relevans för klientens möjligheter och begränsningar i den svenska socialtjänsten
The aim of this study is to illuminate social worker?s perception of social class within the Swedish social service system. This study therefor examine if social class contributes to the production and reproduction of the client and what impact social class has on the interaction between client and social workers. The study was conducted with qualitative semi-structured interviews with social workers from three different departments of social service. The theoretical approach is Yeheskel Hasenfeld?s theory about moral practices in welfare organisations, Michael Lipsky and Roine Johansson?s theories about client construction and Pierre Bourdieu?s class theory.
Skolvalet: en investering i framtiden? : En narrativ studie om föräldrars resonemang kring grundskolevalet ur ett Bourdieu-inspirerat perspektiv
The thesis aims to increase our understanding about parents reasoning about the elementary school choice by studying which factors parents perceive as important during the decision making process and also by giving meaning to Pierre Bourdieu?s concept of capital through the parents perspective. The empirical material comes from seven BNIM-interviews made with parents, which has been analyzed according to the thematic field analysis.The results show that the parents are not especially concerned about making an active school choice. Stability, closeness, friends, rumors, development and adaptability to the reality are the factors that are perceived as the most important in the decision making process. The school choice has a limited meaning as an investment in social capital, from Bourdieu?s perspective.
Inte homofob, men... : Socialarbetares attityder till homo- och bisexuella personer
The purpose of this study is to identify and make attitudes among social workers towards homosexual and bisexual people visible, examine how these attitudes relate to their actions in their professional role and how these attitudes and actions can be understood by theories of heteronormativity and power. The study is a cross-sectional quantitative survey in the form of a questionnaire completed by social workers. The result shows that there are two groups among the social workers. One larger group that reproduces a norm of acceptance toward homosexual and bisexual people and one smaller that reproduces a heterosexual norm. This reproduction of heteronormativity increases the risk for homosexual and bisexual people to be made invisible and treated more negatively in contact with social workers, which in turn can lead to worse health among the clients..
Att välja perspektiv : "Arkitektur i Sverige - Funktion, konstruktion och estetik genom tiderna".
This essay tries to show how The Swedish Museum of Architecture, Stockholm, with the exibition Architecture in Sweden - Function, Design and Aesthetic through the Ages, presents and represents architecture. It is stated that this is done in a multi-perspectival, multimedial fashion, with the aid of, for example, photography, models and mixed material surrounding the wide concept of ?architecture?. One chapter discusses the relationships between the exhibition on site, the exhibition catalog and the museum´s website. Another chapter argues that there can be no essential or perfect representation of architecture, although this utopian wish most certainly exists even today.
Företagets ansikte utåt : En studie som belyser varumärkespositioneringens betydelse på outdoormarknaden
Secondary schools have for decades debated whether they promote social reproduction which is considered to generate the homogeneous student compositions. The gap between the academic programs and vocational education programs is considered to increase. What in recent years has appeared in research is that the gap is increasing most tend to be in the specific academic program, particularly in science. This paper's intention is to describe the science program at a local level and the pupils who were admitted to the science program autumn 2009 on the basis of an educational sociological perspective. The survey consisted of a census in which all students were given the opportunity to answer a questionnaire.
Från pre-human till post-human : Embryots reproduktiva status i skärningspunkten mellan stat och medicin
The aim of the thesis is twofold: the first aim is to identify a number of reproductive logics that are used to construct Swedish regulation of embryo donation for reproductive use as either ethical or unethical in the governmental ? and medical discussions ? and to examine how these logics are interconnected with notions of gender and parenthood. The second aim is to identify a number of tensions that arise in the application of the governmental ethical logic on the embryo and embryo donation and discuss how these tensions can be solved with a feminist material approach. I argue that the terminology used to distinguish between genetic, biological, social and legal parenthood in my material is insufficient for understanding the value of the embryo outside its pre-human status. I therefore argue for an embryonic feminist bioethics that is attentive to the embryos post-human status, and for a reformulation of the parenthood terminology in line with what I call ?reproductive ties?..
Bilder av Ryssland: Annorlundahet och misstro i samtida svensk Rysslandsdiskurs
This thesis analyzes contemporary Swedish discourse on Russia, i.e. the ways Russia and Russians are perceived in Sweden today. After a summary of historical Western and Swedish perceptions of Russia, and a discussion about the treatment of these tensions within modern research, contemporary Swedish discourse is reconstructed based upon analytical articles in three major newspapers during the period 1992-2007. It is argued that the prevailing image of Russia contains the reproduction of old stereotypes and prejudices. The five major representations of Russia in contemporary Swedish discourse are: non-Western, unreliable, authoritarian, threatening and eternal, with the last one being a meta-representation functioning both as a representation of its own and a mechanism for the reification of the others.
Färgperception och grafisk profilering av Hedemora Assistansservie
An inquiring study of literature has been conducted, about the human colour perception (theimpression of colours). The colour has been examined, both as conscious and subconscious signal,and reasons for it?s influence have been exammed.The practical parts of the degree project have been carried out in active collaboration with thecustomer, The Association Hedemora Assistansservice (HASS), which offers handicapped persons astimulating spare time by personal assistance. A graphical profile-programme and an informationfolderhave been produced, easy received by both handicapped (with defective vision) and normallysighted persons. The graphical profile-programme was made in collaboration with the customer.Concerning the information-folder HASS took the main responsibility for the choice of photographswhile layout, text writing, colour-reproduction, original-production and connecting printing workswere made independently.
Värderingarna ligger oss varmt om hjärtat : En kvalitativ studie om hur organisationskultur kan beskrivas och hur den reproduceras
AbstractThe purpose of this study is to explore the organizational culture within the corporation The Body Shop. I have been working with two different question formulations. The first is to answer how the culture can be described. To answer this I have been using Edgar H. Scheins theory of cultural levels.