Sökning: "Direct observations"

Visar resultat 16 - 20 av 305 avhandlingar innehållade orden Direct observations.

1. 16. Estnisk satsföljd och meningsstruktur

   Författare :Kirsi Höglund; Raimo Raag; Lars-Gunnar Larsson; Forsgren Tuuli; Uppsala universitet; []
   Nyckelord :Estonian language; clause order; sentence structure; coordination; coordinator; conjunction; subordination; subordinator; subordinate clause; complement clause; adverbial clause; relative clause; direct speech; constructions; genres; text type; syntax; Estonian; Estniska;

   Sammanfattning : This thesis considers Estonian clause order and sentence structures in fiction, scientific prose, women’s magazines, newspapers and on private web pages. The material covers 4488 sentences exhibiting 197 more or less discrepant sentence structures. Recurrent constructions are clause enumerations, iterations, chains and webs. LÄS MER

3. 17. Effects of Dark Matter in Astrophysical Systems

   Författare :Stefan Clementz; Mattias Blennow; Tommy Ohlsson; Riccardo Catena; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dark matter; Self-interactions; solar capture; helioseismology; inelastic dark matter; direct detection; indirect detection; Fysik; Physics;

   Sammanfattning : When studying astrophysical structures with sizes ranging from dwarf galaxies to galaxy clusters, it becomes clear that there are vast amounts of unobservable gravitating mass. A compelling hypothesis is that this missing mass, which we call dark matter, consists of elementary particles that can be described in the same manner as those of the standard model of particle physics. LÄS MER

4. 18. Supersymmetry vis-à-vis Observation : Dark Matter Constraints, Global Fits and Statistical Issues

   Författare :Yashar Akrami; Joakim Edsjö; Lars Bergström; Roberto Trotta; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; supersymmetry; cosmology of theories beyond the Standard Model; dark matter; gamma rays; dwarf galaxies; direct detection; statistical techniques; scanning algorithms; genetic algorithms; statistical coverage; Astroparticle physics; Astropartikelfysik; Cosmology; Kosmologi; Astroparticle physics; Astropartikelfysik; teoretisk fysik; Theoretical Physics;

   Sammanfattning : Weak-scale supersymmetry is one of the most favoured theories beyond the Standard Model of particle physics that elegantly solves various theoretical and observational problems in both particle physics and cosmology. In this thesis, I describe the theoretical foundations of supersymmetry, issues that it can address and concrete supersymmetric models that are widely used in phenomenological studies. LÄS MER

5. 19. Genetic Consequences of Dispersal and Social Behavior in Lions, Panthera leo

   Författare :Goran Spong; Peter Waser; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Behavioral ecology; direct fitness; dispersal; inclusive fitness; Panthera leo; population genetics; sociality; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; Animal Ecology; zooekologi;

   Sammanfattning : This thesis combines behavioral observations of African lions (Panthera leo) with genetic analyses, in an attempt to clarify causes and consequences of lion group living. The numerous complex cooperative behaviors of lions present an excellent opportunity to investigate the evolution and maintenance of group living. LÄS MER

7. 20. High-contrast imaging of low-mass companions and debris disks

   Författare :Ruben Asensio Torres; Markus Janson; Subhanjoy Mohanty; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Direct imaging; extrasolar planets; debris disks; planet formation; high angular resolution; Astronomy; astronomi;

   Sammanfattning : The search for exoplanets, i.e., planets orbiting other stars than the Sun, is a relatively new research field, but has already established itself as one of the most prolific and intriguing areas of astronomy. LÄS MER