Sökning: "Two sample problem"

Visar resultat 11 - 15 av 280 avhandlingar innehållade orden Two sample problem.

1. 11. Sustainable Nature Tourism and the Nature of Tourists’ Cooperative Behavior : Recreation Conflicts, Conditional Cooperation and the Public Good Problem

   Författare :Tobias Heldt; Lars Hultkrantz; Olof Johansson Stenman; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; field experiment; conditional cooperation; Allemansrätten; tourism development; Nationalekonomi; Economics; Nationalekonomi;

   Sammanfattning : This thesis consists of five essays.Essay I (with David Vail) explains why neither Maine, USA's comparatively laissez faire economic and land use institutions nor Dalarna, Sweden's more heavily regulated economy seems well designed to make tourism a powerful economic development engine. LÄS MER

3. 12. Finding fitness : empirical and theoretical explorations of inferring fitness effects from population-level SNP data

   Författare :Bea Angelica Andersson; Xiao-Ru Wang; Åke Brännström; Tanja Slotte; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; distribution of fitness effects; site frequency spectra; missing data filtering; downsampling; imputation; sample size; population structure; inbreeding; selfing; homozygosity; Arabidopsis; Pinus; DFE-alpha; SLiM; population genomics; adaptation; biology; biologi; evolutionär genetik; evolutionary genetics; populationsbiologi; Population Biology; molekylärbiologi; Molecular Biology; Genetics; genetik;

   Sammanfattning : The distribution of fitness effects (DFE) describes the likelihood that a new mutation has a specific effect on the fitness of an individual in a given population. The shape of the DFE is a result of several factors such as population size, mating system and selective environment, and can in turn influence the evolutionary potential of a species. LÄS MER

4. 13. Femårsuppföljning för tvångsvårdade kvinnor : Inverkan av psykiska problem på utfallet

   Författare :Irene Jansson; Institutionen för psykologi; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; hospital admissions; criminal offences; psychiatric disorder; abstinence; women; drug dependence; Compulsive treatment;

   Sammanfattning : The study focus is a sample of women with drug dependence admitted to compulsory treatment according to the Swedish act of care for drug abusers (LVM, 1988:870) and according to the act of care for young persons (LVU, 1990:52). From a cohort consecutively admitted to residential treatment at Lunden between 1997 and 2000, a sample of 132 women was selected for a five year follow-up. LÄS MER

5. 14. Classification of High Dimensional Signals with Small Training Sample Size with Applications towards Microwave Based Detection Systems

   Författare :Yinan Yu; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Classification techniques attempt to resolve the problem of categorizing data into two or more classes. The data distribution is therefore the most critical fact to be aware of. LÄS MER

7. 15. Essays on Immigrants' Economic Integration

   Författare :Kerem Tezic; Göteborgs universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Second-generation immigrants; educational attainments; early labour-market experiences; competing-risks; graduate employment; calibration; first-generation immigrants; sample-selection in panel data; random effects.;

   Sammanfattning : This thesis consists of five papers, related to each other in terms of study-sample, study-subject or methods used. The first paper is concerned with second-generation immigrants' educational attainments, using the Longitudinal Individual Data-set (LINDA), which gave us the possibility to examine changes over time, from ages 16-17 to 21-22 and to compare second-generation immigrants with a randomly-chosen matched control-group of native Swedes. LÄS MER