Sökning: "graded center"
Visar resultat 1 - 5 av 8 avhandlingar innehållade orden graded center.
1. Centra of Quiver Algebras
Sammanfattning : A partly (anti-)commutative quiver algebra is a quiver algebra bound by an (anti-)commutativity ideal, that is, a quadratic ideal generated by monomials and (anti-)commutativity relations. We give a combinatorial description of the ideals and the associated generator graphs, from which one can quickly determine if the ideal is admissible or not. LÄS MER
2. Cross-cultural differences in patients with temporomandibular disorders-pain : a multi-center study
Sammanfattning : The overall objective of this thesis was to investigate patients with TMD-pain and TMD-free controls in three cultures (Saudi Arabia, Sweden, and Italy) to determine the influence of culture on and crosscultural differences in pain prevalence and intensity, sensitivity to mechanical and electrical stimulation, pain-related disability for four comorbid pain conditions (back, head, chest, and stomach pain) in the last 6 months, and the type of treatment that patients with TMD pain received. The specific aims were: (i) To determine the frequency of TMD pain in Saudi Arabians (I). LÄS MER
3. Ideals and Maximal Commutative Subrings of Graded Rings
Sammanfattning : This thesis is mainly concerned with the intersection between ideals and (maximal commutative) subrings of graded rings. The motivation for this investigation originates in the theory of C*-crossed product algebras associated to topological dynamical systems, where connections between intersection properties of ideals and maximal commutativity of certain subalgebras are well-known. LÄS MER
4. Hot-wall MOCVD for advanced GaN HEMT structures and improved p-type doping
Sammanfattning : The transition to energy efficient smart grid and wireless communication with improved capacity require the development and optimization of next generation semiconductor technologies and electronic device components. Indium nitride (InN), gallium nitride (GaN) and aluminum nitride (AlN) compounds and their alloys are direct bandgap semiconductors with bandgap energies ranging from 0. LÄS MER
5. Advanced Ovarian Cancer. A multimodal diagnostic approach to predict outcome
Sammanfattning : Primary debulking surgery (PDS) followed by platinum-based postoperative chemotherapy isthe standard of care for advanced ovarian cancer (AOC). Absence of macroscopic residualdisease after debulking surgery is the strongest prognostic factor achieved by surgery. LÄS MER