Sök:

Sökresultat:

656 Uppsatser om Compact plants - Sida 2 av 44

Plant defensive mechanisms against insect pests

This study has focused on testing the following two hypotheses:? Pest resistant plants have higher levels and/or several different kinds of secondary metabolites. ? Induced defensive systems in resistant plants are activated more rapidly than those of susceptible plants. As a background for the test of the hypotheses a short literature study was performed concerning plant defensive mechanisms in Arabidopsis thaliana.

Småskalig vattenkraft : Dagsläge och framtidsplaner

This study focuses on small scale hydropower in Sweden. This means plants with a capacity of up to 10 MW. The study has a special focus on plants with a capacity up to 2 MW. The study has three aims. It strives to describe the small-scale hydroelectric industry in Sweden.

F?RS?LJNING AV OCH INST?LLNING TILL FR?MMANDE V?XTER I TR?DG?RDSBRANSCHEN

Alien plants that have intentionally been introduced to an area for cultivation in public or private gardens constitute the primary pathway of introduction for invasive alien species that spread into nature. Garden owners want species that have satisfying characteristics, these characteristics are often also linked to plant invasiveness. Thus, the horticulture industry plays an important role by making scientifically based decisions and phasing out invasive plants and replacing them with alternative species with satisfying characteristics, but low risks of becoming invasive. This thesis aimed to examine the sale of and the attitudes towards alien plants in the horticulture industry in Sweden. Alien terrestrial plants identified to have a severe risk, high risk or potentially high risk of spreading and becoming invasive according to ArtDatabankens assessment, were examined to see if they were for sale.

Är fytoremediering en realistisk metod för att rena marken runt Glasriket på arsenik, kadmium och bly?

Phytoremediation is a technique using the ability of plants to absorb pollutants in their biomass from contaminated soils and remediate it. The plants are then harvested and the soil gets purified. This method is more environmental-friendly than the normally used methods for soil remediation. Glasriket in Småland is an area with large amount of pollutants including arsenic, cadmium and lead. This area must be cleaned from these metals because of the high threat to the environment ant the health of people who live here.

Håller vindkraften vad den lovar?

The purpose of this study is to investigate how much of the estimated annual electric energy production from Swedish wind power that actually was produced, as well as the history of this agreement over time. The aim is to also examine if there are properties that have caused some group of wind power plants to produce more or less, compared to their estimated production. Operational data on wind turbines collected by the Swedish Energy Agency was analyzed. A survey was made among owners of wind power plants with a nominal power of at least 2 MW. Two different methods for normal year correction of production data were used and compared.

Corporate Social Responsibility och Global Compact. Med mänskliga rättigheter som norm?

Uppsatsens undersökningsområde är den världsomspännande idé eller rörelse som går under beteckningen Corporate Social Responsibility (CSR), företags samhälleliga ansvar. En viktig del i CSR-rörelsen är den internationella avtalskonstruktion som benämns Global Compact. Med FN som plattform har ett globalt samarbete mellan företag och intressegrupper upprättats där frågan om företags samhälleliga ansvar behandlas med hjälp av tio principer. Undersökningen har två delsyften; A) att beskriva och undersöka bolags samhälleliga ansvar enligt Global Compact, särskilt enligt principerna 1 och 2, samt B) att kritiskt pröva frågan om det ansvaret är förenligt med bolags legala vinstsyfte. Först följer en deskriptiv redogörelse av CSR och Global Compact för att visa på grunder, struktur och terminologi.

Växtdatabas med sökmotor :

My work has resulted in an interactive search engine for plants that can be found at www.plantit.se. In the work process I have searched for which search criteria is most important when doing searches on woodland plants. I have done this by an analysis of existing databases and with an survey where leading plant expertise answered questions about woodland plants. I analyzed three search pages that are on the internet today Havenet.dk, Backyardgardener.com and Den virtuella floran. I concluded that there are several flaws but also many positive aspects that I have used when developing the interface of my page. The survey resulted in the basis for my search criteria the answers listed the most important factors when planting woodland plants. From this information I developed a system with five values on every criteria.

Vintervegetation genom ljus : om hur man med belysning kan framhäva avlövad vegetation i offentlig stadsmiljö

Use of lighting is crucial to make public urban places available during dark hours. Landscape architects participate in planning of lighting, but during our education there is very little taught on the subject. Through this study we approach the subject of lighting by looking into lighting methods for urban plant materials during winter. In this thesis we look into ways to emphasize the visible characters and experiences of urban plants during winter season using light. Target audience are landscape architect students and landscape architects without knowledge of lighting. The part of the thesis that describe basic conditions for, and visual characters of plants can be useful to lighting designers without knowledge in this subject. Working methods used were the following: ? Pre-study about light and lighting techniques through literature and dialogues. ? Compiling important visual winter plant characters through photography and literature. ? Outdoor light experiments with plants.

Ljusets betydelse för rotknoppars groningsvillighet i åkermolke (Sonchus arvensis L.)

This study is about how changed light conditions induce dormancy in plants. It is divided in two parts. First a literature study where quantification of light, the concept dormancy, photoperiod and light quality are discussed. Second an experimental part, where the importance of light for sprouting capacity in root buds of perennial sow thistle (Sonchus arvensis L.) is investigated.In the science in how flowering in plants are induced the concepts short day/long day plants and light dominant/dark dominant are well-established. These concepts can also be applied to how light induce dormancy in plants.

TVÄTTÄKTA ANSVAR? - En studie av Global Compacts svenska medlemsföretag.

Syftet med denna uppsats är att kasta ljus över ämnet Corporate Social Responsibility (CSR). Inom detta ämne kommer fokus att ligga på det initiativ som heter Global Compact (GC), och som blivit föremål för såväl beundran som skepticism. Målet är att utröna om GC i Sverige blivit, eller är i riskzonen för att bli, en front för det som i uppsatsen kallas kulörtvätt, eller om det tvärtom är en välfungerande sammanslutning som hjälper till att sprida CSR. Frågeställning: ?Hur och vart åberopar de svenska företagen sitt medlemskap i Global Compact??, ?Av vilka anledningar ansluter sig företag till Global Compact??, ?Vilka effekter kan företagens frivilliga val av Global Reporting Initiative (GRI) som rapporteringssystem ha på de åtaganden av transparens och kommunikation som Global Compact medlemskapet för med sig?? Metod: För att uppfylla syftet och frågeställningarna används en kvantitativ och en kvalitativ metodel.

Cisterciensklostrens odlingar i Sverige under medeltiden

The aim of this paperisto find out which plants the Cistercian monks might have cultivated in Sweden during the Middle Ages and which types of plants it would have been practical to grow inside or outside of the Cistercian monastery precinct. Archaeologicaland archaeobotanical studies have been consulted to find out which plants were available in Sweden during the Middle Ages. Examples, mainly from Scandinavia, but also from the continent, are used to show that the monasteries were large institutionsthat had to feed a large number of people and that there would not have been enough space to cultivate everything needed within the monastery precinct.Secondary sources have in the main been used to gather this information, except in the case of the Swedish monastery of Nydala where F-Topo, a database developed by the County Museum of Jönköping,has been used to analyse the amount of land and the types of properties owned by the monastery.The conclusion is that for practical reasons the monks would have cultivated plants that needed to be close at hand, that were rare or delicate, that could not be stored for long periods and that were used in small quantities within the monastery precinct. This would include medicinal plants, herbs for cooking and some vegetables like lettuce, spinach,and similar,that do not keep well. Most other items, grains, cabbages, root vegetables, peas and beans could equally well be cultivated outside the walls.

Olika typer av täckning och samodling och dess påverkan på antalet skadegörare i en Pak choi odling :

The purpose of this report is to examine the possibilities to decrease the number of insects and other pathogens in a crop of pak choi (Brassica rapa), grown with different types of cover and living mulches. Included in the report is a study of literature where amongst others, a summary on the vegetable pak choi and theories of living mulches and different kind of covers are to be found. To examine the amount of predators in the field, traps were used. During the autumn 2002 the tests were conducted in Alnarp. The pak choi and the living mulches were planted/sawn at the same time, the different covers were also applied at this time. The total experiment was divided into six different treatments (plus control) of which three were with covers and three were with living mulches. Once a week the number of leaves, the height and damages were read on ten of the plants from each parcel.

TVÄTTÄKTA ANSVAR? - En studie av Global Compacts svenska medlemsföretag.

Syftet med denna uppsats är att kasta ljus över ämnet Corporate Social Responsibility (CSR). Inom detta ämne kommer fokus att ligga på det initiativ som heter Global Compact (GC), och som blivit föremål för såväl beundran som skepticism. Målet är att utröna om GC i Sverige blivit, eller är i riskzonen för att bli, en front för det som i uppsatsen kallas kulörtvätt, eller om det tvärtom är en välfungerande sammanslutning som hjälper till att sprida CSR. Frågeställning: ”Hur och vart åberopar de svenska företagen sitt medlemskap i Global Compact?”, ”Av vilka anledningar ansluter sig företag till Global Compact?”, ”Vilka effekter kan företagens frivilliga val av Global Reporting Initiative (GRI) som rapporteringssystem ha på de åtaganden av transparens och kommunikation som Global Compact medlemskapet för med sig?” Metod: För att uppfylla syftet och frågeställningarna används en kvantitativ och en kvalitativ metodel. Intervjuer har genomförts med Global Compacts svenska medlemsföretag och dessutom har hemsidor, årsredovisningar, artiklar samt litteratur inom området använts.

Avtal om rådgivning. En jämförande studie av svensk rätt och Draft Common Frame of Reference

Uppsatsens undersökningsområde är den världsomspännande idé eller rörelse som går under beteckningen Corporate Social Responsibility (CSR), företags samhälleliga ansvar. En viktig del i CSR-rörelsen är den internationella avtalskonstruktion som benämns Global Compact. Med FN som plattform har ett globalt samarbete mellan företag och intressegrupper upprättats där frågan om företags samhälleliga ansvar behandlas med hjälp av tio principer. Undersökningen har två delsyften; A) att beskriva och undersöka bolags samhälleliga ansvar enligt Global Compact, särskilt enligt principerna 1 och 2, samt B) att kritiskt pröva frågan om det ansvaret är förenligt med bolags legala vinstsyfte. Först följer en deskriptiv redogörelse av CSR och Global Compact för att visa på grunder, struktur och terminologi.

Investeringskalkylering : en kartläggning och analys av kalkyleringsarbetet på Volvo Construction Equipment

Problems: How does Volvos CE: s four Swedish plants work with investment appraisals? Does the work differ between the plants? If differences exist, what can be improved in order to make the work more uniform?  Purpose: To map the work with investment appraisals at Volvo CE: s four Swedish plats, to analyze differences in work between the plants and give proposals to a more homogenous working.Method: A method of qualitative nature. The study mainly contains raw data from semi structured interviews. Secondary data, such as internal policy documents and documentation of completed investment projects, has supplemented the raw data. Analysis: The mapping shows significant differences in work with investments between Volvo CE: s Swedish plants.

<- Föregående sida 2 Nästa sida ->