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13603 Uppsatser om Difference-in- differences-metoden - Sida 28 av 907
Minkvalpars beteende i större berikade burar vid olika gruppstorlek :
Farmed mink often perform stereotypic behaviours which is considered to be a sign of reduced welfare. Previous studies have shown that enriched cages can reduce the frequency of performed stereotypies. Most studies on mink in Sweden have been done on adults. The aim of this study was to investigate if larger enriched cages with two or four mink kits reduce stereotypies in mink kits during their growth period in comparison to traditional cages.
In the present study the behaviours of mink kits that were kept in four different treatments at a private mink farm were recorded. Traditional cages with two mink kits were used as a reference and the other treatments consisted of larger cages with shelves with two kits, larger cages with shelves and a plastic cylinder with two kits, and larger cages with shelves with four kits.
Light or Voice ? make your choice! : Plocktekniker för tillverkningsföretag
Companies constantly strive for the perfect order which enables them to satisfy and retain their customers. This is a difficult process that can be facilitated by using different picking technologies. In this study, a research of the picking technologies Pick-to-Light and Pick-to-Voice have been made to investigate when each technology is suited.In order to collect relevant information and data to be able to answer the question formulation, a qualitative study with interviews have been made. The purpose of this essay was to investigate Pick-to-Light and Pick-to-Voice to see when each technology is best suited and to see what the differences between the technologies are. With our essay we wanted to help manufacturing companies to make the right decisions when implementing a picking technology.The results showed that those picking technologies give companies a higher picking quality and an increased work efficiency since the order picking is faster to perform, and that picking errors are reduced.
Private equity - nyckeltalsförändringar; En studie om hur portföljbolag förändras efter ett uppköp
In this paper we investigate 67 Swedish buyouts in the manufacturing and retailing sector between the years 2004-2012. The purpose is to measure changes in a set of financial key ratios to see if private equity firms are able to improve performance in their portfolio companies compared to a peer group consisting of other firms within the same industries. Furthermore, we examine if there is a difference in the change of the financial key ratios between private equity-owned firms in the two sectors. The key results are that the private equity owned firms have not outperformed their peers with respect to the chosen key ratios. We also conclude that there is no significant difference in the change of the financial key ratios between private equity-owned firms in the two sectors..
Värdering av prestation och riskbeteende i ung ålder : Finns det ett samband?
This paper is a study how students at a high school in Falun, Sweden, estimates theirperformance in an upcoming math test which is then compared with the actual grade thestudent performed. The students who participated also answered questions related to ?risksituations? to examine whether there is a correlation between how students estimate theirperformance in the context and their risk behavior, and if the students act like economicmodels assume. In agreement with previous studies, the boys in the survey tended to beoverconfident in their performance. The girls in the study were neither over- norunderconfident in her performance and no significant difference in the estimation of one'sperformance between the sexes could be proven.
Hur en övergång till ett automatiskt mjölkningssystem påverkar juverhälsan :
Automatic milking systems (AMS) have been in commercial use since 1992 and have since 1998 increased a lot. The objective of this study has been to examine the development of udder health on farms converting to AMS. The study also included a comparison of how udder health developed depending on how farms handled cows with mastitis. This was because farms choose to either milk cows with mastitis in a separate barn or in the milking robot.
Other studies on udder health on commercial farms have shown that somatic cell count increases both among individual cows and in the bulk milk when converting to an AMS. No differences between before and after converting to AMS in the proportion of cows treated for mastitis can be found in the literature.
Sångrösten - skillnader och likheter mellan manlig och kvinnlig sångröst i ett pedagogiskt perspektiv
The singing-voice ? Differences and similarities between male and female singing-voices in a pedagogical perspectiveThe primary purpose of the present study is to create a basis for a deeper understanding of the male singing-voice. Within the above purpose the present study also aims at comparing differences and similarities between the male and the female singing-voice, and examining possible pedagogical differences in teaching male and female singing students.The study is partly a literature study where existing studies in the field of the singing-voice are examined, in which the male singing-voice is described in relation to the female one. The study also comprises an interview study where four professional singing-teachers, two male and two female, are being interviewed according to an interview guide (see appendix A) focusing on pedagogical aspects of the male and the female singing-voice.The results of the study show that the anatomical functions of the singing-voice are the same whether you are male or female. This also holds true for the basic singing-technique which is the same for both sexes.
Före och efter Lpfö, 98; Fyra förskollärares reflektioner om arbetet före och efter införandet av läroplanen.
Since 1998, the Swedish preschool has its own curriculum and with this the preeschool became the first step of a lifelong learning. The aim of this study was to explore how preschool teachers perceive their work before and after the Swedish curriculum was inserted. A qualitative method was used in this study. Four different in-depth interviews were conducted with preschool teachers, all experienced working at least before 1993. The curriculum theory and curriculum history were used to analyze the empirical data.
Manligt och kvinnligt enligt kvinnor och män : En kvalitativ undersökning av ledarna i fyra livsstilsmagasin
The purpose of this thesis is to study how femininity and masculinity is portraited in theeditorials of four Swedish lifestyle magazines; Glamour, Cosmopolitan, Moore and Slitz. Themain questions we based our study on are: What kind of relationship does the editor in chiefcreate with the intended reader? What conception of the world does the editor in chief createin the editorials? How does the editor in chief portray masculinity and femininity?In order to answer the questions above we performed a qualitative analysis of the editorials offour lifestyle magazines published during 2007. We used a discourse analysis with emphasison gender and how the editorials constructed masculinity and femininity and its stereotypicaltraits.Furthermore we based our results on a theory of the socially constructed gender. According tothis theory gender is constructed during our childhood and adolescense by the individuals andthe society surrounding us.
Folkmord i läromedlen : En undersökning om folkmords behandling i fem läromedel för gymnasiets A kurs i historia
A large number of genocides have taken place in our history. The purpose of this essay is to examine how genocide is treated in five high school history textbooks. I have studied a large number of issues. I have examined which genocides are discussed in the textbooks and which genocides the textbooks don?t discuss.
Jämförelse av kursplaner i gymnastik/idrott mellan Finland och Sverige
This study is comparing curriculums in Physical Education between Sweden and Finland. The comparison was done based on former curriculums and previous research. Results from previous research showed differences between countries and curriculums. The aim of the study was to find out if and why there were differences between the current curriculums based on goals and sports. The method was a literature analysis.
Fonologi hos svenska 5- och 6-åringar med typisk språkutveckling : Referensmaterial till det fonologiska testmaterialet LINUS
A new phonological test, LINUS, for Swedish-speaking children between the ages of three and seven, has been developed at the speech and language pathology department at Linköping University. The aim of the present study was to create a reference manual for the long version of the new test. The participants in the present study were children between the ages of five to seven in a medium-sized municipality in the Northern part of Kalmar County, Sweden. In total, 124 native Swedish-speaking children (58 girls and 66 boys) with typical language development participated. The children were divided into two age groups, 5;0-5;11;31 and 6;0-6;11;31 years.
Bogsår, en bedömningsfråga.
In 2009, the responsibility for animal welfare was moved from the local authorities at the municipality(kommunerna) to the County Administrative Board(länsstyrelsen). This was a result of many differences between the different municipalities in how they handled animal welfare. Shoulder lesions of sows are a matter of opinion and therefore, a complicated question. Sows suffer from shoulder lesions for many reasons: e.g. the amount of straw available.
Där horisontellt möter vertikalt : en studie av hur fasaden och gatan påverkar upplevelsen av stadsrummet
This paper is about the facades and the streets impact on theexperience of the city and how architects can create cities forthe human kind with simple tools that makes a hugh difference forthe experience of urban space.As the cities are growing in a faster rate and as more people moveto the cities, they will also affect more people. The differentstructures that can be found in the cities therefore gets moreimportant and giving design to city structures also gets morecomplex because of our higher demands on urban functions andcontent. It?s difficult to evaluate the ultimate city structuresince all people experience their city in different ways, butarchitects still should be able to create urban spaces thatis suited for the human kind, just as we can create differentbiotopes for flora and fauna. Therefore there must be generalideas of what the human being experience as good or bad and theseshould be guidelines when designing urban space.Since urban space is something that most people experience everyday it doesn´t always have a clear impact on them.
Rektor, pedagogers och elevers inställning till internet i fritidshemmet : En enkätundersökning om rektor, pedagogers och elevers inställning till internet i fritidshemmet
The purpose of this examination is to get a view of the attitude towards internet-use within after school centers. By comparing the views of pupils with the teacher?s point of view, one can notice differences that may be due to a lack of knowledge or communication. The questions are: What view does the principal, the staff, and the pupils have on internet-use in after school centers? Does their view differ? If so, how? To be able to respond to these questions, the pupils and the staff have been handed surveys and the principal has been interviewed.
Habitatval, migrations- och furageringsaktivitet samt homing hos gädda (Esox lucius) härstammande från Österby myr, Gotland.
In this study the spawning migration activity, habitat choice (depth and temperature), foraging activity, duration of stay in the spawning site and homing-behavior was studied for anadromous pike (Esox lucius) in the wetland Österby myr, Gotland.The spawning migration was concentrated to dusk and dawn, a homing behavior was confirmed and there was no significant difference between sexes with respect to duration of stay. A difference in habitat choice and small variation in foraging activity between individuals was established..