Tomato production is a common and important agricultural activity in Nicaragua. During the last decades tomato producers have suffered great yield losses due to begomoviruses (family Geminiviridae). The genome of begomoviruses generally consists of two circular ssDNA components, DNA-A and DNA-B. Tomato yellow leaf curl virus (TYLCV) is an example of a begomovirus with only one component. An approach to manage the virus epidemics has been to breed a cultivar with begomovirus resistance genes, which have been transferred from wild tomato.

F?ljande kandidatarbete ?mnar studera begreppet kr?kning samt bevisa Gauss remarkabla sats f?r att f?rst? dess konsekvenser f?r till?mpningar inom kartografi. Arbetet inleds med att bygga upp fundamenten i kurvteori i plan och rum, d?r begreppet kr?kning f?rst introduceras. Vidare definieras begreppet yta i tre dimensioner, f?r att sedan beskriva kr?kningsbegreppet f?r ytor. Detta leder till en diskussion om hur en ytas f?rsta respektive andra fundamentala former anv?nds f?r att m?ta l?ngd, vinklar samt Gausskr?k ning.

Det ha?r examensarbetet tar upp Suzukiundervisning pa? klarinett. Syfte var att fa? fo?rdjupad kunskap i varfo?r klarinett inte a?r ett officiellt Suzukiinstrument.Tidigare forskning visar pa? det gynnsamma i att inha?mta kunskap i unga a?r. Tidig start a?r en av byggstenarna i Suzukipedagogiken, men hur fungerar egentligen klarinettundervisning i unga a?r? Det finns en stor ma?ngd litteratur som bero?r Suzukiundervisning pa? olika sa?tt.

Denna studie a?r en fo?rdjupning i huruvida motivation pa?verkar andraspra?ksinla?raresresultat i la?sning. Gardner och Lamberts (1972) ursprungsmodell fo?r motivationsstudier har fungerat som underlag i denna underso?kning som har utfo?rts pa? en grupp vuxna L2- inla?rare av svenska som i nula?get studerar pa? SFI, kurs C och D. Fra?gesta?llningen a?r huruvida elever med ho?g motivation uppna?r ba?ttre resultat pa? la?stest a?n elever med la?gre motivation.

Det ha?r examensarbetet tar upp Suzukiundervisning pa? klarinett. Syfte var att fa? fo?rdjupad kunskap i varfo?r klarinett inte a?r ett officiellt Suzukiinstrument.Tidigare forskning visar pa? det gynnsamma i att inha?mta kunskap i unga a?r. Tidig start a?r en av byggstenarna i Suzukipedagogiken, men hur fungerar egentligen klarinettundervisning i unga a?r? Det finns en stor ma?ngd litteratur som bero?r Suzukiundervisning pa? olika sa?tt.

That ecological and evolutionary processes can take place on the same time scale is a recent insight. Today we also know that they are directly linked to each other. In the lake TÃ¥kern, in year 2000, there was a structural change when phytoplankton declined and submerged vegetation, mainly stoneworts began to spread. This led to evolutionary changes in the aquatic sowbug, Asellus aquaticus which had previously been limited to the reed, most likely feeding on detritus. But then, sowbugs could exploit the new habitat in stoneworts and a new food resource in terms of periphyton.

The freshwater pearl mussel (Margaritifera margaritifera) is a large freshwater mussel. Because of its sensitivity to human impact, such as eutrophication, acidification and alterations of hydromorphology, the species is considered as a robust indicator of stream water quality and biodiversity. Moreover, due to the species complex life cycle, including a larval stage on the gills of salmon and trout, and sensitivity of early life stages, regeneration is often used as an indicator. The freshwater pearl mussel is also used in the expert judgement of status classification of benthic invertebrates according to the European Water Framework Directive. The purpose of this study was to gain a deeper understanding of the freshwater pearl mussel as an indicator for Swedish streams. It was made with two types of association analyses.

Many of Europe?s day-living butterflies have shown decreasing populations during the last decades and many species are threatened. Many butterflies are dependent on managed semi-natural grasslands because of their richness in nectar sources and host plants for the butterfly larva. Swedish pastures are mostly managed through grazing. The number of cattle in Sweden have been decreasing while the number of sheep in the country increased by 30%.

The wild boar (Sus scrofa L.) has expanded across Europe and Sweden in the last decades. It is a generalist species which utilizes a variety of habitats, and its presence has been shown to have both positive and negative effects for people and the landscape they are in. The abundance and increase of wild boar has previously been shown to differ between counties in Sweden, but there have been few explanations as to why. In this study, I investigated correlations between the per capita rate of change (r) among wild boar populations in Sweden and a variety of different habitats on the county level. I also investigated if fragmentation per se or in certain habitats could be associated with the wild boar?s per capita rate of change. My results show that fragmentation/diversity per se was not correlated with wild boar r.

?Flumskola? eller ?katederundervisning?? Ja det har varit ma?nga bena?mningar pa? den svenska skolan genom a?ren och 2011 kom en ny la?roplan som skulle ersa?tta den tidigare la?roplanen. Det finns ma?nga la?rare som har arbetat med flera olika la?roplaner. Hur har skiftet till nya la?roplaner pa?verkat deras undervisning, planering och arbetssituation?Denna underso?kning a?r en analys av La?roplan fo?r det obligatoriska skolva?sendet, 1994 (Lpo94) och La?roplan fo?r grundskolan, fo?rskoleklassen och fritidshemmet (Lgr 11) som ga?ller sedan ho?sten 2011 och deras kursplaner i musik.

Den ha?r semantiska webben. Syftet a?r att underso?ka hur den semantiska webben pa?verkar so?kmotorer pa? webben. Detta sker genom en underso?kning av tio olika so?kmotorer da?r nio a?r semantiskt sa?dana och den tionde a?r den mest anva?nda so?kmotorn idag.

The aim of this review is to assess the ethical implications of aquaculture, regarding fish welfare and environmental aspects. The aquaculture industry has grown substantially the last decades, both as a result of the over-fishing of wild fish populations, and because of the increasing consumer demand for fish meat. As the industry is growing, a significant amount of research on the subject is being conducted, monitoring the effects of aquaculture on the environment and on animal welfare. The areas of concern when it comes to animal welfare have here been divided into four different stages: breeding period; growth period; capturing and handling; and slaughter. Besides these stages, this report includes a chapter on the current evidence of fish sentience, since this issue is still being debated among biologists.

Nya fo?rutsa?ttningar pa? marknaden har resulterat i att ett nytt globalt fenomen uppkommit. Detta fenomen bena?mns som Born Globals, och karakta?riseras av sma? och medelstora fo?retag som expanderar pa? den internationella marknaden tidigt efter grundandet. Dock har inte andelen svenska Born Global-fo?retag o?kat genom a?ren.

Bakgrund: I Sverige har antalet unders?kningar med magnetresonanstomografi, MR, dubblerats sen millennieskiftet. Studier visar att ca 1?2% av alla planerade MRunders?kningar st?lls in p? grund av att patienten upplever ?ngest eller klaustrofobi. Att drabbas av ?ngest och oro i samband med unders?kningar ?r vanligt.

Informationsso?kningar av olika slag sker dagligen va?rlden o?ver och so?kresultatet kan ma?nga ga?nger vara sa? stort att anva?ndarna har sva?rt att veta vilka so?kresultat som a?r relevanta. I denna uppsats har syftet varit att underso?ka hur so?kresultat kan filtreras och sorteras med hja?lp av platsbaserad so?kning fo?r att det ska bli mer relevant fo?r anva?ndaren. Genom litteraturstudie och intervjuer har det blivit mo?jligt att ta reda pa? hur ett so?kresultat skulle kunna filtreras och sorteras fo?r att mo?ta anva?ndarnas fo?rva?ntningar.