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14305 Uppsatser om Difference- in- difference analys - Sida 5 av 954
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?Are the headwaters streams at the right position in the map? is a study that has been performed on behalf of Holmen Forest, region Örnsköldsvik. This study will be the basis for deciding if the Hydrology Layer Property map or Holmen Forest map will be used for planning nitrogen fertilization in forestry. The background to this study is that nitrogen fertilization near water will increase the risk of nitrogen leaching out into the water systems, which has a negative impact on the environment. The headstreams positions have been recorded in the field with a GPS and the data analyzed in the geographic information system ArcMap.
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.
Värdeskapande i Leveraged Buyouts i jämförelse med noterade företag
The purpose of this thesis is to study the difference in value generation and its drivers between leveraged buyouts and listed companies. The primary objective is to observe if differences exist. A secondary objective is to understand the differences and attempt to provide an explanation based on earlier research on Private Equity. A selection of large Swedish LBO-transactions, carried out between 1998 and 2012, are analyzed and their value generation drivers subject to comparison with a weighted index of companies listed on the Nasdaq OMX Stockholm. A clear difference in value creation is observed, both in size and composition.
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..
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..
Faktorer i sjuksköterskors arbete som påverkar patientsäkerheten : en litteraturöversikt med fokus på konsekvenser av skiftarbete och arbetsbelastning
Aim:The aim of this study is to examine similarities and differences in eating habits in students ages 16-19 in high school.Questions:How do eating habits differ between adolescent athletes and non-athletes?What significance does living conditions and religious background have on the eating habits of adolescents? Method: This study is of a quantitative approach using survey questions.The method used was questionnaires. Three schools participated in the study. The school provided programs with and without athletic orientation. My purpose was to give out 200 surveys but in the end the total of handed out surveys landed on 141.
Tvåstegsavvänjning av köttraskalvar med hjälp av nosbricka :
When beef calves are weaned abruptly at 5 to 6 months of age this triggers a strong stress reaction, since the animals have not yet untied the bonds to their mothers or stopped suckling. This is displayed as extensive vocalization and restlessness. Attempts to diminish the negative effects of weaning on sucking calves have been showing varying results.
The study presented here emanates from the observation that when calves are weaned without human interference they are only prevented from suckling, but are still allowed to have social contacts with their mothers. The hypothesis was that calves weaned in two steps would be calmer, gain more weight, and be healthier than animals that were abruptly weaned. To investigate this, 15 calves where weaned in two stages (Group 2), by fitting the calves with nose tags that prevented them from suckling during 5 days prior to the separation of the cows and calves.
Utvärdering av två hullbedömningssystem för katt av en djursjukskötarstudent och djurägare
Obesity is a growing global health problem among both humans and cats with the risk of several medical conditions as a result. This can be detected and prevented by body condition assessment methods in order to visualize and detect possible or potential weight problems in cats.To achieve the best results, owner and cat should be introduced to this as soon as possible in their contact with veterinary care.Purina Body Condition System and Walthams Feline Body Mass Index are both morphometric assessment methods that are quick, relatively cheap and simple to perform. 20 cats with owners and a veterinary nurse student participated in a study to compare pet owners and a veterinary nurse student's assessment of the Purina Body Condition System and WALTHAM's Feline Body Mass Index. The body condition assessment methods were compared with each other, and it was investigated which method was preferred, the body condition distribution among the studied cats and if long-haired cats' body condition was more often misjudged. Results of the study showed a significant difference between pet owners and the veterinary nurse student's assessment of Purina BCS with a difference in median of 1.
Nya förutsättningar en jämförelse mellan traditionellt och elektroniskt referensarbete.
The purpose of this master thesis is to investigate the differences between the traditional way of conducting a reference interview and the electronic way. The main questions of this thesis are: How does the electronic reference interview appear in comparison to the traditional one? How do the librarians experience the differences? Is quality affected in the electronic reference interview? Examples from Fråga biblioteket Ask the Library have been used in this study. The method used in the investigation is based on qualitative interviews in combination with studies of relevant and recent literature. The librarians interviewed all have experience from both traditional and electronic reference work.
Som man frågar får man svar!
This essay is about the question if there is any difference in quality at the homes for the elderly in Skåne, depending on however the home is run by a public organization or private counterpart. The quality of the homes is meet with the help of numbers in ?the guide for the elderly? the facts in the guide are collected and judged by the ?Swedish National Board of Health. The result from the guide is divided into seven areas of quality, and then compared in a statistic test between the different types of organizations. And finally the result of the statistics is put in the context of the theory of New Public Management.
Modeller för brösthöjdsålder för tall och gran :
The purpose of this study was to develop two types of prediction models for Scots Pine
and Norway Spruce. The first type for calculation of the stump diameter under bark the
year the tree reached breast height (Dstubh130). The second type for calculation of the
annual difference, e.g. the number of growth years between stump height (0.2 m) and
breast height (1.3 meters above ground level). The primary thought with these prediction
models is to obtain the breast height age in the trees on basis of the number of annual
rings at stump.
Är det efternamnet eller prestationerna som avgör betyget? : Om etnisk diskriminering vid jämförelser av betyg före och efter anonymiseringen av salstentamina vid Stockholms universitet
Studiens syfte är att undersöka om det förekommer etnisk diskriminering vid bedömningar av salstentamina. Vi frågar om studenters prestationer bedöms olika på grund av etnisk tillhörighet och om graden av etnisk diskriminering skiljer sig mellan kvinnor och män. Stockholms universitet införde anonyma salstentamina höstterminen 2009 med undantag för juridiska fakulteten som tillämpat anonyma tentamina sedan 1999. Vi använder data bestående av betygslistor från tre stora delkurser inom ämnena juridik, nationalekonomi och statsvetenskap vid Stockholms universitet som sträcker sig från höstterminen 2007 till och med vårterminen 2013 (N=12014). Etnicitet har klassificerats utifrån studenternas efternamn.
Föräldrar till barn med funktionshinder : upplevelser av samhällets stöd
The aim of this essay is to study how parents to children with learning disability experences the support they get from society. My main question has been: what kind of support offer does society offer this parents? What is good and what is less satisfactory in this support? The study is based on a qualitative method. Five parents with children who has learning disabilities has been used as base. The material has been analysed with a narrative, hernmeneutic perspective.The study concludes that the parents, use in this case, find that society does not offer the necessary understanding for their problem of their family.
Biblioteksförändring : Personal och besökares upplevelse av den förändrade biblioteksmiljön och medieuppställningen i Tranemo samt en jämförande undersökning av medieuppställningen bland besökare på biblioteken i Skara och Lerum
When the Tranemo library moved to new localities in 1991 there were also some changes made to make the library more user-friendly. The purpose of this essay is to see how a useroriented change can be done and how it has been perceived by members of the library staff and the library users.This is done by the following means:l) interviews with members of the library staff,2) a questionnaire to the users in Tranemo,3) a comparative questionnaire to users of the libraries in Skara and Lerum.The comparison was concentrated on how the library presents its material. The result of this comparison shows that even though there is a difference among the three libraries, the difference is small and it is impossible to say for sure that it has anything to do with the changes that have been done. The interviews and questionnaire in Tranemo give a positive picture of that library..
Vilande Bolag : Beskattning av fåmansföretag
Title: Dormant companies ? Taxation of closely held companiesProblem: Many companies are facing a business transfer and fall within a smaller company with a few owners and therefore that tax jurisdiction is current. They risk facing high taxes but it can be avoid by setting the company in an inactive status for five years.Purpose: The purpose is to describe the inactive company rules and the verdict from the Swedish Supreme Administrative Court. Also to investigate how this verdict will affect company sellers.Method: Based on a case study and by analyzing the Swedish Law conclusions has been determinate.Result: A dormant company must be inactive for five years, and then the company can benefit from a different taxation. The owner and it´s relatives can´t be active in the company during this five year period.