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1043 Uppsatser om Natural enemies - Sida 59 av 70
Den dominanta rollen i en barngrupp
Syftet med vår undersökning är att övergripande synliggöra den dominanta roll ett barn kan ha eller få i en grupp. Vi valde att observera i två olika klasser i de lägre åldrarna på en F-6 skola. För att få syn på den dominanta rollens egenskaper så använde vi oss av bland annat videoinspelning. Videoinspelningen gav oss material som kom så nära den naturliga miljön i gruppen som möjligt. Först när vi började observera såg vi inte några av de egenskaper som vi trodde karaktäriserade den dominanta rollen.
Evaluation of the animal welfare work performed by the licensing committees and a proposal on how to establish an enhanced animal welfare assurance program for the Swedish Trotting Association
According to the basic values of the Swedish Trotting Association the horse and its welfare should always be held in highest consideration. One part of the animal welfare work in the organization is to ensure good horse management practices by controlling all active trainers through the local licensing committees situated at the Swedish racetracks. The Swedish Board of Agriculture stated that high quality animal welfare assurance programs used by the industry organizations can be used in the risk assessment of the official animal welfare control to make the official control work more effective and the ambition of the Swedish Trotting Association is to establish an animal welfare assurance program which may be approved by the Swedish Board of Agriculture. Racehorses are exposed to welfare hazards both in their management as well as during training and racing and factors like handling, training, feedstuff, stable environment, medication and the possibility to express natural behavior all affect the welfare of the horses.
The aim of the project is to investigate and evaluate the animal welfare work performed by the licensing committees and to give advice on how to improve the industry?s animal welfare control.
Design och implementation av en skriptmotor för spel
Denna rapport beskriver resonemanget kring framtagandet av en modul som tillåter användaren att, på ett lättanvänt sätt, skripta beteenden hos en redan existerande grafikmotor. Arbetsprocessen beskrivs steg för steg med definition av vad ett skript är, vad som ska kunna gå att skripta och vilka övergripande krav som ställs, design av tekniska lösningar, design av syntax, testning och till sist resultat. Resultatet varierade på de olika punkterna. Den underliggande tekniska lösningen blev lyckad då den uppfyllde kraven på modularisering, robusthet, flexibilitet och prestanda. Ur en tillämpbarhetssynpunkt blev resultatet även här tillfredsställande eftersom det visade sig vara fullt möjligt att skripta kloner på de tre försöksspelen (SkiiFree, BreakOut och Space Invaders) på ett sätt som kändes bra och rättfram.
Avsättningsmöjligheter för slaggrus från avfallsförbränning vid Åmotfors Energi
The incineration of waste is steadily increasing in Sweden and so is the production of ashes. The bottom ash has for many years been used as construction material in
landfills. Now many of the nation's landfills are closed and there is a great need to find another beneficial use for the ash. Bottom ash is a gravel-like material and with its material properties it can replace natural gravel in parts of roads and surface constructions. Today this use is only approved within landfill areas where leachate is
collected and checked.
Föryngring i stormfälld rekreationsskog : en jämförelse mellan föryngring i produktions-, rekreation/produktion och rekreationsskog.
When the storm Gudrun hit Sweden on the 8th and 9th of January, many recreational forests in southern Sweden blew down. For this reason there is a demand for new regeneration methods as to how these storm-felled areas should be regenerated and with what species.
In this study the forest is divided into three areas: production, recreation/production and recreation. The first area is a forest with production as main goal and these kinds of forests are located a bit from the city. The second type ? recreation/production forest ? has two equal goals: production and recreation, and is located close to the city.
Fjärrvärme, vad annars? : Fjärrvärme och dess alternativ
AbstractBackgroundThe Swedish district heat market of today is a subject being discussed regarding the reasonableness of the heat district supplier?s price settings. The issue is currently on a government level where a new investigation is being executed at the time of writing. Many real estate owners are growing tired of the situation where the heat district suppliers are taking advantage of their monopoly position, thus feeling that the price of district heating has been increasing far too much for many years. The market can be described as a natural monopoly because the real estate owner has no possibility to choose another supplier if they are unsatisfied with the present.
Sustainable business practices : a review of eco-efficiency
The current demanding business environment requires corporations to act fast in finding effective solutions to problems given the myriad of challenges they face (Dyllick & Hockerts, 2001). The challenges include the impact of climate change on business practices, natural resource consumption, chemical pollution, technological change etc. Moreover, the forces of globalization, heightened concerns about the deteriorating quality of the physical environment and increased stakeholder power are also increasingly having a real influence on business practices (Rainey, 2008).
Since 1992, the World Business Council for Sustainable Development (WBCSD) has encouraged the adoption of the concept of ecological efficiency (eco-efficiency) to support business efforts aimed at addressing some of these challenges. The aim of eco-efficiency is to reduce the amount of energy and materials used in production processes to achieve economic and environmental benefits (WBCSD, 2000).
Bioelectromagnetics for improved crop productivity : an introductory review with pilot study of pre-sowing treatment of tomato
Various electromagnetic (EM) treatments has been investigated for their potential in improving crop productivity over the past century. There is today an increasing amount of scientists advocating EM treatments as an organically compatible method for improving plant
growth and yield. However, failure to produce repeatable effects and defining causal mechanisms has made it a study of much controversy and debate. The subject requires indepth
interdisciplinary knowledge, making it inaccessible for the majority of biologists, horticulturists and growers. In this combined literature review and pilot study, these issues are addressed by providing a comprehensive introductory review of the topic plant
bioelectromagnetics and its potential horticultural usability.
Stem injection of different nitrogen forms into young Norway spruce
This master thesis has been a pilot study preceding a forthcoming project of a larger scale with the long term objective to separate the direct effect of added nitrogen on soil processes from indirect effects via trees. The aim of this study has been to investigate the allocation of nitrogen following direct injection of liquid solutions into the xylem of 40 year old Norway spruce. The field site is located at Flakaliden (64°07?N, 19°27?E), approximately 60 km northwest of Umeå, Sweden. A total of 18 trees were selected for treatment, equally divided between three treatments, potassium nitrate, glutamine and water (control).
Variationer- En intervjustudie om sexualitet och uppfattningen av det normala
Can the need for inclusion result in certain social norms remain unchallenged, and over time become hard to identify? To ?fit in? and be accepted in different social contexts we have to behave according to the dominating rules and conventions. We accept characteristics and make use of attributes specific for the group we want to be a part of. When we accept these attributes we contribute to keep the concept of them alive. Further on these attributes will be picked up by the next person who wants to become a part of that specific context.
Kokosvatten som rehydreringsdryck - Kan kokosvatten rekommenderas som ett bättre alternativ än vatten eller sportdryck efter ett måttligt intensivt träningspass?
Sahlgrenska Academy at University of GothenburgDepartment of Internal Medicine and Clinical NutritionAbstractTitle: Coconut water as a rehydration fluid. - Can coconut water be recommended as a better choice than water or sports drink after moderately intense training?Author: My Green, Joakim LundSupervisor: Henriette PhilipsonExaminer: Frode SlindeProgram: Dietician study program, 180/240 ECTSType of paper: Examination paper, 15 hpDate: May 26th, 2014Background: Already in the 1960s an alternative to water as a rehydration fluid occurred, the so-called sports drink. Coconut water has in recent years been claimed as the "natural sports drink" in media. Coconut water is sold in shops and fitness centers around the world and has established itself as an alternative to water and sports drink in terms of rehydration after a workout.Objective: To investigate whether there is scientific evidence to recommend coconut water as a rehydration drink after moderately intense exercise ahead of water or sports drink.Search strategy: The search for articles in this systematic review was performed in the databases PubMed, Scopus, Cochrane and GUPEA.
Krubbitning hos häst : implikationer på djurvälfärd och argument för en nollvision om förekomst av beteendet
Most descriptions of stereotypic behaviours have in common that these repetitive behaviours only has been observed in captive animals and therefore it has been proposed that stereotypies exist because we house animals in environments that are sub-optimal to them. Some scientists claim that performance of stereotypies in itself decreases the animal's welfare due to costs in time, energy and health and a poorer quality of life. Other scientists assert that individuals performing stereotypies may have a better welfare compared to the rest of the animals in the same environment, since these individuals have developed strategies to cope with stress. Studies have estimated the prevalence of abnormal behaviours in horses to 18-30 % of the population. Several studies on cribbing have revealed a prevalence of 4-5 %, although some results indicate that more than 10 % of the horse population performs this stereotypy.
Det onkolytiska parvoviruset H-1PV : tumörsupprimerande mekanismer
H-1 parvovirus (H-1PV) är ett autonomt onkolytiskt parvovirus. Dess naturliga värddjur är råtta, men det kan även infektera andra vertebrater. H-1PV kan tas upp av alla celler men är endast skadligt för prolifererande celler i neonatala djur och tumöromvandlade celler. Vid infektion av tumörceller kan tumörsupprimerande mekanismer genereras. Dessa kan vara direkt cytotoxiska och celldödande, eller indirekta genom att aktivera viralt eller tumörspecifikt immunsvar.
Förskolans inomhusmiljö ur ett genusperspektiv
My essay is about me and my colleagues who have come to realize that maybe we are stuck in old habits when it comes to preschool indoor environment from a gender perspective. The insight has enabled us now face the challenge of how to deal with and move forward with gender issues and the indoor environment. The reviews between us educators differ greatly, making it difficult start of a process of change, or development, of previous work in the preschool. The difficulties of working with gender in preschool is that we do not know how teachers influence or shape the children. We educators controls many times the children, both consciously and unconsciously and sometimes benevolence tend to instead become a takeover.
Avvänjningsmetodens påverkan på fölet : en naturligare avvänjning för ökat välmående
Den naturliga process där stoet avvänjer sitt föl strax innan hon ska föla igen ger den unga hästen möjlighet att gradvis ändra sitt val av föda och mogna till en självständig individ. Den tidigare och mer abrupta avvänjningen som ofta sker av domesticerade hästar är mycket stressande för fölet. Negativa effekter som kan ses är en ökad skaderisk, försämrat immunförsvar och utveckling av onormala beteenden som stereotypier. Eftersom hästägare och uppfödare vill ha friska och sunda hästar är det viktigt att börja med en god välfärd för fölet som kan ligga till grund för den framtida hästens välmående. Det finns i dagsläget studier som redovisar avvänjningsmetoder som orsakar fölet mer eller mindre stress.