Sökning: "multistage"

Visar resultat 41 - 45 av 69 avhandlingar innehållade ordet multistage.

1. 41. Osteoporosis, a major health problem in Vietnam : life style factors and determinants of bone mass

   Författare :Thi Thanh Huong Nguyen; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Vietnamese men and women;

   Sammanfattning : While the prevalence of osteoporosis and risk factors for low bone mineral density (BMD) has been well documented in Caucasian populations, there is a lack of data from Asia. This work was designed to clarify to what extent osteoporosis could be regarded as a major public health problem in Vietnam. LÄS MER

3. 42. Studies of induced transcription in response to an activated Ha-ras, TPA and UV radiation in keratinocytes

   Författare :Mats Nilsson; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :keratinocytes; Ha-ras; ultraviolet radiation; transcription factor; TPA; NF-kB;

   Sammanfattning : The mutational activation of the Ha-ras gene in keratinocytes has been shown to occur during the initiation step in the mouse skin model for multistage carcinogenesis. Skin tumor promoters such as 12-O-tetradecanoylphorbol-13-acetate (TPA) and ultraviolet radiation (UVR) stimulate a selective outgrowth of initiated keratinocytes to form benign tumours (papillomas). LÄS MER

4. 43. Falls in older community-dwelling women and men : risk factors and safety strategies. Fall risk awareness, fear of falling, and preferred exercise properties from a gender perspective

   Författare :Petra Pohl; Lillemor Lundin-Olsson; Karin Hellström; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Older people; Community-dwelling; Falls; Fall-related injuries; Fear of falling; ICF; Gender; Exercise preferences; Fall risk awareness; Falls prevention; Safety precautions; Qualitative research;

   Sammanfattning : Background Falls are the leading cause for non-fatal injuries in older community-dwelling people. Compared to men, women fall more often, experience more fall-related injuries, and report fear of falling (FoF) more often. Falls may be prevented with specific exercises, but adherence is often low in long-term. LÄS MER

5. 44. IMPROVING GEOMETRICAL QUALITY BY INDIVIDUALIZING THE ASSEMBLY PROCESS

   Författare :Abolfazl Rezaei Aderiani; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Geometry Assurance; Locator Adjustments; Selective Assembly; Variation Simulations; Individual assembly processes;

   Sammanfattning : Dimensional deviations are a consequence of the mass production of parts. These deviations can be controlled by tightening production tolerances. However, this solution is not always desired because it increases production costs. LÄS MER

7. 45. Automating Power Quality Analysis

   Författare :Emmanouil Styvaktakis; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pattern classification; expert systems; induction motors; power system transients; voltage dips; power system faults; power quality; Kalman filtering; power system monitoring; transformer saturation; short time Fourier transform;

   Sammanfattning : The increased requirements on supervision, control, and performance in modern power systems make power quality monitoring a common practise for utilities. Large databases are created and automatic processing of the data is required for fast and effective use of the available information. LÄS MER