Sökresultat:
721 Uppsatser om Biological diversity - Sida 39 av 49
En uppföljning av floran i Enköpings vattenpark : kan anlagda våtmarker med vattenrening som huvudsyfte bidra till naturvård och biologisk mångfald?
Wetlands are important ecosystems and form habitat for both common and threatened species. In Sweden, as well in many other places on earth, there is a lack of wetlands. There is an expressed will to adjust this lack through restoration of wetlands with reduced function and through construction of new wetlands. Follow-ups and evaluations are important steps to optimize these actions. The wetland Vattenparken was constructed 1999 ? 2000 for treatment of surface water.
Soil carbon, pH and yield development in a long-term humus balance trial
Agriculture has to be performed in a sustainable way in order to sustain high yields and to support a globally growing population. Functional soil properties are fundamental for high yields and in order to achieve good soil conditions sustainable management is a key. Loss
of soil organic material and increased soil acidity are problems associated with degradation of soils and hence less sustainable agriculture. In this thesis, the effect of different agricultural systems on soil organic matter, pH and yield was examined. The systems examined are a cereal system with straw removal or returning and a ley system, all with different nitrogen levels.
Att vara mamma, men ändå inte mamma : En kvalitativ studie om mödrars upplevelser i samband med att deras barn flyttat till familjehem
Vid brister i föräldraförmågan, där modern inte kan se till att sitt barn får de grundläggande behoven tillgodosedda tvingas hon ibland till familjehemsplacering av sitt barn enligt Socialtjänstlagen (SoL, SFS 2001:453) eller enligt Lag med särskilda bestämmelser om vård av unga (LVU, SFS 1990:52). Dessa mödrar har enligt lag rätt till stöd för att bearbeta de känslor som kan uppstå vid denna typ av trauma. Mödrar med egna erfarenheter, exempel Widerlöv (2012) och Trullson (2008) har skrivit // artiklar och böcker där de berättar om att mödrar kan drabbas av känslor som skuld, skam och sorg, och att de har ett behov av stöd i samband med familjehemsplaceringarna.Studien är gjord efter en kvalitativ metod med ett induktivt förhållningssätt. För att kunna besvara studiens syfte och svara på frågeställningarna har sju semi-strukturerade intervjuer med biologiska mödrar genomförts.I resultatet har det framkommit att alla mödrar utom en är missnöjd det stöd som de har erbjudits. Det handlar både om att de inte har blivit erbjudna stöd och att det har varit fel sorts stöd för dem.
Biology of Lilioceris lilii(Coleoptera:Chrysomelidae) and the occurrence of their parasitoids in Sweden
Sammanfattning: Liljebaggen, Lilioceris lilii (Scopoli) är den största skadegöraren på liljor tillhörande släktena Lilium och Fritillaria, och är ett problem i Sverige liksom i övriga Europa, Nord-Amerika och Asien. Skadan orsakas främst av larverna, men även av fullvuxna baggar, som äter på plantans blad, knoppar och blommor (Ernst, 2005). De kan orsaka allvarliga skador genom att äta upp alla blad på plantan (Gold et al., 2001; LeSage and Elliott, 2003). Biologisk bekämpning i Sverige verkar möjlig sen man har upptäckt parasitsteklar som attackerar liljebaggens ägg och larver i Europa.
I de centrala delarna av Europa har Haye och Kenis (2004) funnit fyra arter av parasitsteklar som parasiterar liljebaggens larver, ichnemoniderna Lemophagus pulcher, Lemophagus errabundus, Diaparsis jucunda, och eulopiden Tetrastichus setifer. En äggparasit, mymariden Anaphes har också upptäckts, liksom hyperparasiten Mesochorus lilioceriphilus, en ichneumonid, som ofta parasiterar Lemophagus arterna.
För att undersöka förekomsten av dessa steklar i Sverige gjordes insamlingar av liljebaggslarver under sommaren 2006 på olika platser i tre regioner, södra (Skåne), sydöstra (Småland och Öland) och mellersta (Stockholm) Sverige.
Say no to racism?: FIFAs antirasism ur ett postkolonialt perspektiv
The purpose of this thesis is to historically describe how Fédération Internationale deFootball Association (FIFA) interprets how the discourse of anti-racism has developed withintheir own organization throughout the years. In doing so, the thesis lands in a present timeperspective and then aims to identify the norms which FIFA, according to the organizationitself, stands for in regard to anti-racism within world football. That standard of behavior isthen put in contrast with the hidden ideological conceptions which, with the applying of apost-colonial perspective, can be found in the rhetoric used by FIFA in expressing themselvesabout their anti-racism stand.The methodology used in this thesis builds upon a qualitative text analysis approach inwhich solely primary sources available through the official website fifa.com are considered.The study finds that anti-racism is a relatively young concept within FIFA and that the communicatedideal standard of behavior circles around terms such as unity, diversity, solidarityand equality. Further on, FIFA clearly articulates how the universal power of football as suchcan unite people and that FIFA, as the administrator of this the world?s greatest sport, can setan example for the rest of the world to follow when it comes to notions of tolerance and solidarityin preventing racism in the future.In following the terminology provided by the post-colonial theorists Homi Bhabha andGyatri Spivak, and applying the concepts of fixity and essentialism on the rhetoric aroundanti-racism, the study discovers that FIFA, in sharp contrast to the articulated norms, in factexpress ideological conceptions of skin as a barrier of difference between people, and thatFIFA on good grounds can be accused of reproducing racist stereotypes rather than bridgingthem.The study concludes that its findings clearly demonstrates the increased need of consideringsports, and more specifically international sport organizations, as a basis for researchwithin the academic field of International Relations, and that a postcolonial perspective verymuch can provide alternative understandings of how these actors operate and what influencethey might have in the international system..
Kulturmöten i vården: Sjuksköterskors upplevelser av att vårda patienter med annan kulturell bakgrund
Ungefär 14 procent av den svenska befolkningen utgörs av invandrare. Studier visar att många invandrare är utsatta i samhället då de kommer till ett nytt land. Denna utsatthet kan vara språksvårigheter, arbetslöshet, rasism och diskrimination. I samband med att invandringen ökar i Sverige ökar även sannolikheten att man som sjuksköterska kommer i kontakt med patienter med annan kulturell bakgrund. På så sätt kan det uppstå det kulturkrockar i mötet med invandrarpatienter.
Uppslagsverkens diskursordning. En diskursanalytisk studie av Nationalencyklopedin och Wikipedia
The Swedish working-class author Ivar Lo-Johansson (1901-1990) wrote a collection of one hundred short stories between the years 1968-1972. His other productions, generally speaking, have partially different social reform purposes, but, according to himself, these short stories were written with the intention to be totally free of tendencies (even though he himself doubted that he succeeded with this).During the same period that these short stories were published, the Swedish social democrats were under the challenge of radical movements that, mainly on the radical left?s ideological foundation, had a relatively strong influence in Sweden, among other countries, from the mid 1960?s to the late 1970?s. Since Lo-Johansson mainly seemed to have supported the politics of the social democrats, the purpose of the investigation in this thesis has been to see if he ? in the three short stories: Vikingakärlek (1970), Rikslögnaren (1971) and Ansgars resa till Sverige (1972) ? is conveying an ideological use of history and basic political values that were used by the social democratic party during this time period.
Onlinereferenssamtal ur ett kunskapsperspektiv. En diskursanalytisk studie av Jourhavande bibliotekaries chattreferenstjänst
The Swedish working-class author Ivar Lo-Johansson (1901-1990) wrote a collection of one hundred short stories between the years 1968-1972. His other productions, generally speaking, have partially different social reform purposes, but, according to himself, these short stories were written with the intention to be totally free of tendencies (even though he himself doubted that he succeeded with this).During the same period that these short stories were published, the Swedish social democrats were under the challenge of radical movements that, mainly on the radical left?s ideological foundation, had a relatively strong influence in Sweden, among other countries, from the mid 1960?s to the late 1970?s. Since Lo-Johansson mainly seemed to have supported the politics of the social democrats, the purpose of the investigation in this thesis has been to see if he ? in the three short stories: Vikingakärlek (1970), Rikslögnaren (1971) and Ansgars resa till Sverige (1972) ? is conveying an ideological use of history and basic political values that were used by the social democratic party during this time period.
På barns och ungdomars villkor? En undersökning av Fisksätra folkbibliotek ur ett barnperspektiv
The Swedish working-class author Ivar Lo-Johansson (1901-1990) wrote a collection of one hundred short stories between the years 1968-1972. His other productions, generally speaking, have partially different social reform purposes, but, according to himself, these short stories were written with the intention to be totally free of tendencies (even though he himself doubted that he succeeded with this).During the same period that these short stories were published, the Swedish social democrats were under the challenge of radical movements that, mainly on the radical left?s ideological foundation, had a relatively strong influence in Sweden, among other countries, from the mid 1960?s to the late 1970?s. Since Lo-Johansson mainly seemed to have supported the politics of the social democrats, the purpose of the investigation in this thesis has been to see if he ? in the three short stories: Vikingakärlek (1970), Rikslögnaren (1971) and Ansgars resa till Sverige (1972) ? is conveying an ideological use of history and basic political values that were used by the social democratic party during this time period.
Skola och bibliotek - en samhörighet? En undersökning av skolbiblioteksverksamheten i Växjö kommun
The Swedish working-class author Ivar Lo-Johansson (1901-1990) wrote a collection of one hundred short stories between the years 1968-1972. His other productions, generally speaking, have partially different social reform purposes, but, according to himself, these short stories were written with the intention to be totally free of tendencies (even though he himself doubted that he succeeded with this).During the same period that these short stories were published, the Swedish social democrats were under the challenge of radical movements that, mainly on the radical left?s ideological foundation, had a relatively strong influence in Sweden, among other countries, from the mid 1960?s to the late 1970?s. Since Lo-Johansson mainly seemed to have supported the politics of the social democrats, the purpose of the investigation in this thesis has been to see if he ? in the three short stories: Vikingakärlek (1970), Rikslögnaren (1971) and Ansgars resa till Sverige (1972) ? is conveying an ideological use of history and basic political values that were used by the social democratic party during this time period.
Standardisera mera? : Z39.50 mellan enighet och mångfald
Z39.50 is a standard protocol designed to create an interface between diverse computer databases for diverse information needs. Since it has to be adjustable it is also complex and demands a certain degree of expertise when being set. However, the aim of this paper is not to make a theoretical description but to examine certain conditions in practice. From the perspective of Swedish research libraries two principal hypotheses are examined: 1) the implementation of a given technology (Z39.50) is primarily influenced by social circumstances, and 2) the way in which the technology is implemented will bias the results of information retrieval. For this examination we need a framework of theories concerning the relationship between technological development and society, organisational theories and database theories.
Från SPPB till SUB. En bibliotekssammanslagning och dess konsekvenser ur ett användarperspektiv
The Swedish working-class author Ivar Lo-Johansson (1901-1990) wrote a collection of one hundred short stories between the years 1968-1972. His other productions, generally speaking, have partially different social reform purposes, but, according to himself, these short stories were written with the intention to be totally free of tendencies (even though he himself doubted that he succeeded with this).During the same period that these short stories were published, the Swedish social democrats were under the challenge of radical movements that, mainly on the radical left?s ideological foundation, had a relatively strong influence in Sweden, among other countries, from the mid 1960?s to the late 1970?s. Since Lo-Johansson mainly seemed to have supported the politics of the social democrats, the purpose of the investigation in this thesis has been to see if he ? in the three short stories: Vikingakärlek (1970), Rikslögnaren (1971) and Ansgars resa till Sverige (1972) ? is conveying an ideological use of history and basic political values that were used by the social democratic party during this time period.
Simulering av simulinkmodeller med Extended Kalman Filter
Simulations of simulink models using Kalman filters are often very time-consuming. This problem depends mainly on the fact that the Kalman correction has to be performed at each sample instance through the whole simulation. The goal for this thesis work is to reduce that time-consumption for the filtering part (the integration partis treated in a complementary report) of a simulation. Furthermore a Matlab routine to perform parameter tuning and finally a graphical user interface is developed.The filtering part of the simulation in this thesis is based on an Extended Kalman Filter (EKF). The time optimization of this filter considers searching for the possibility to replace the today?s existing Matlab functions that is used to perform the filtering calculations.
Naturvårdande skötsel (NS) - blir resultatet som man tänkt sig? : en fältstudie över föryngring, trädslagsfördelning och död ved 14 år efter åtgärd
A new Swedish political approach to forestry was initiated 1993, that put goals of production and environmental issues into equal importance to Swedish Forestry Law. Earlier nature conservation very often declaimed preservation the best way to conserve nature, but recently it is clear that many highly biological values are due to former land use or disturbance. Many old pastures or cultivations dominated by deciduous trees are today characterized by a dense overgrowth of Norway spruce. By actively paying attention to nature in forestry (nature restoration), it is possible to partly reconstruct habitats or disturbances that are necessary to favour the biological values.
The aim with this master thesis is to study the nature restoration, (NS, Swedish abbreviation), performed in 11 forest sites in the middle of Sweden 8-14 years ago. Since NS recently have become applied, it has never yet been evaluated.
Biblioteksdebatt! En diskursanalys av debatten om folkbiblioteken i dagstidningar åren 1950–1960
The Swedish working-class author Ivar Lo-Johansson (1901-1990) wrote a collection of one hundred short stories between the years 1968-1972. His other productions, generally speaking, have partially different social reform purposes, but, according to himself, these short stories were written with the intention to be totally free of tendencies (even though he himself doubted that he succeeded with this).During the same period that these short stories were published, the Swedish social democrats were under the challenge of radical movements that, mainly on the radical left?s ideological foundation, had a relatively strong influence in Sweden, among other countries, from the mid 1960?s to the late 1970?s. Since Lo-Johansson mainly seemed to have supported the politics of the social democrats, the purpose of the investigation in this thesis has been to see if he ? in the three short stories: Vikingakärlek (1970), Rikslögnaren (1971) and Ansgars resa till Sverige (1972) ? is conveying an ideological use of history and basic political values that were used by the social democratic party during this time period.