The focus of our dissertation is masculinity which is often a topic of debate in today?s society concerning areas such as violence, sport and paternal leave. Male studies are a relatively new field which means there is a lot remaining to be explored. We have chosen to explore how social class reflects on male identity. The reason we have chosen social class as a variable is due to a focus in the general debate of identity amongst the social sciences towards identities formed through consumption in the world of global mass-media.

This thesis is performed at Saab Bofors Dynamics in Karlskoga and investigates a technique for ranging with laser pulses. The investigated technique is called Constant Fraction Detection (CFD). Described briefly, the received laser pulse is split into two equal parts, where one part is delayed half the pulse width and inverted. This signal is added to the original pulse. The resulting curve has the shape of a laying S and the detection of the zero level is used to stop the time measurement.

The Swedish ostrich production started about thirteen years ago and still there are no Swedish recommendations regarding ostriches? space requirements. The European Council give recommendations and the Swedish Board of Agriculture (SJV) has a proposal, but so far the producers follow Danish regulations regarding space requirements. The Swedish Animal Welfare Agency are about to set standards for the ostriches? space requirements, and therefore the Swedish ostrich producers, together with The Federation of Swedish Farmers (LRF) ask for a scientific background to these decisions. This thesis is a preliminary study at the prospect of a future experiment on which factors important for ostriches? space requirements and welfare will be examined more thouroughly.

The codling moth, Cydia pomonella is a common pest in apple orchards and can be found worldwide. Feeding by codling moth larvae can cause a substantial decrease in apple yield. Control methods comprise for example the use of pesticides, viruses and pheromones. As a sustainable control method, pheromones have been successfully applied to disrupt moth mating behaviour. Other behaviours like foraging, search for mating sites or host finding could be potential targets for additional odour-mediated behavioural manipulation but need further investigations of the underlying odour stimuli and behavioural plasticity. Many insects are attracted to the smell of fermenting fruit and associated microorganisms.

For Skattkärr IF a turf field with warming has been projected to increase field?s utilization hours and to have a longer period for athletes to perform their activities outdoors. The technique chosen to heat the plan is a type of a geothermal heating system without a heat pump. The brine, which is water with 30% ethanol, collects heat from the borehole and discharges it to a coil in the field. There is at position 11 boreholes but it is planned to increase the number to 31, which is the design for the facility.

After I heard that two deadly accidents in farming 2003 were created by work with cattle, I got the idea of writing this degree project. So far there are not too many reports written about safety for the worker nor the animal. Therefore it will fit in with a report about safe handling of free stalled cattle. The Swedish Board of Agriculture would also like to do an information material about outside stalled cattle with this degree project as a background. The collecting of material was made by visiting farmers. The goal was to visit 15 ? 20 herds and when this is being written 19 herds have been visited.

 My goal with this essay was to find out what makes certain teachers more successful than others to hold good and well functioning classes. This is important because this in turn affects the learning of the students. I wanted to find out what factors people within the world of research have pointed out as important aspects when creating a good teaching situation, with focus laying on the teacher?s behaviour in the classroom. In my investigation I have used qualitative research, observing two upper secondary school classes, for a total of nine lessons during a two-week period. In my observations I wanted to see if the class as a whole was behaving differently when interacting with different teachers.

During an investigation of animal welfare in animal production, the focus has for a long time been focused on the absence of stress, suffering and injuries, and positive emotions have not been prioritized. However, in recent years that has been drastically changed. The public interest have increased for buying animal products from animals that have had a decent life, which have led to that play, exploratory behavior and other positive behaviours has come to play a significant role in welfare assessment. The welfare of cattle is difficult to assess since there is currently no ancestors to study, it is thus difficult to determine which behaviors can be regarded as natural and thus positively related, acordingly the welfare of cattle have been forgotten and research on positive emotions of cattle have not been prioritized. The aim of this study was to observe which behavior growing cattle performe, and if there was any differences of which kind of behavior that was observed, if the cattle is keept on slatted floor or on a deep straw bedding. Furthermore, antoher purpose was to investigate if the observed behaviours indicate a positive, negative or natural welfare, and if it is possible to use the observed behaviours in a welfare assessment.

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.

Miljö och hållbarhet är något som kommit att uppmärksammas allt mer sedan startskottet på 70-talet i samband med ökat fokus från regeringshåll och grundande av miljöorganisationer. I takt med konsumenters ökade medvetenhet har kraven höjts på svenska klädföretag och deras arbete med hållbar utveckling och hållbara produkter. Problematiken ligger i att svenska klädföretag utför sitt arbete på olika sätt och därav finns olika tolkningar av hur en hållbar produkt är framställd och vad denna ska innehålla. Det är även svårt för kunder att få ett grepp av en hållbar produkt, då de inte finns någon konkret definition.Den övergripande problemformuleringen i arbetet har berört hur olika svenska klädföretag och miljöorganisationer definierar en hållbar produkt. I uppsatsen presenteras olika definitioner av hållbar utveckling och den lagstiftning som ligger till grund för de produkter som produceras och säljs på den svenska marknaden.

Majoriteten av alla dödsfall hos värphöns beror på fjäderplockning med efterföljande kannibalism. Fjäderplockningsbeteendet innebär ett mycket stort problem för äggnäringen eftersom det både påverkar fåglarnas välfärd till följd av skador och stress, och dessutom ekonomiska förluster via nedsatt äggproduktion och ökat foderintag. Utsatta fåglar vars fjäderdräkt förstörts kräver mer foder för att bibehålla normal kroppstemperatur. Fjäderplockning är ett multifaktoriellt problem men förekomsten av beteendet har setts öka i takt med den stigande produktionen. Eftersom konsumenternas efterfrågan på billiga ägg ökar tvingas lantbrukarna hålla fler fåglar på samma ytor.

Få faktorer, förutom fodret, påverkar hönsen så mycket som ljus. För djurens välmående och produktion och för lantbrukarens totalekonomi spelar valet av både ljuskälla och intensitet stor roll. Eftersom lagstiftarna vill få in dagsljus i allt större utsträckning till fjäderfä är det lämpligt att studera hur bra höns trivs i ljus som påminner om dagsljuset och om detta ljus har negativa effekter. Studien gjordes med tre olika ljuskällor och med olika ljusintensitet. De olika ljuskällorna var glödljus (GL), lysrör med varmvitt sken (VV) och lysrör med dagsljusspektra (DL). Avsikten var att se hur mycket djurens aktivitet ökade med ökad ljusintensitet och om det var skillnader mellan de undersökta ljuskällorna.