Sökning: "tas ett"

Visar resultat 1 - 5 av 650 avhandlingar innehållade orden tas ett.

1. 1. Bussförares upplevelser av förändrade verksamhets- och arbetsvillkor : Ett tillitsperspektiv

   Författare :Tommy Nilsson; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Working Life Science; Arbetsvetenskap;

   Sammanfattning : Mot bakgrund av att svensk kollektivtrafik är avreglerad har det under det senaste decenniet skett omvälvande omstruktureringar inom branschen som förändrat såväl grundläggande verksamhetsvillkor som bussförares arbetsvillkor. Mot denna bakgrund är studiens syfte att belysa hur avreglering, anbudsupphandling och privatisering har påverkat bussförarnas arbetsvillkor och hur de upplever konsekvenserna av de åtgärder som vidtagits för att anpassa verksamheten till förändrade verksamhetsvillkor. LÄS MER

3. 2. Perspectives on Assessment in Introductory Computer Science Courses : Exploring and Comparing Experiences of Students, Teaching Assistants, and Course Coordinators

   Författare :Emma Riese; Viggo Kann; Olle Bälter; Stefan Stenbom; Johan Thorbiörnson; Päivi Anneli Kinnunen; KTH; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Assessment; introductory programming; CS1; teaching assistants; TAs; students; course coordinators; TA training; Datalogi; Computer Science;

   Sammanfattning : Assessments of students' performances, including providing the students with feedback, are central parts of course design in higher education. These assessments can be carried out in different ways and with different purposes. LÄS MER

4. 3. MEMS Interfaces for Bioanalysis Systems

   Författare :Thomas Frisk; Göran Stemme; Andreas Hierlemann; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microfluidic interfacing; microfluidics; µTAS; sample transfer; biosensor; electronic nose; surface tension; quartz crystal microbalance; QCM; narcotics detection; Electronic measurement and instrumentation; Elektronisk mät- och apparatteknik;

   Sammanfattning : This thesis deals with various aspects of using open microfluidic interfaces. Three specific areas of application are studied. The first is air-to-liquid interfacing in biosensors with possibilities for component inte­gration. A micromachined interface for airborne sample-to-liquid and droplet-to-liquid adsorption is discussed. LÄS MER

5. 4. Acoustic Forces in Cytometry and Biomedical Applications: Multidimensional Acoustophoresis

   Författare :Carl Grenvall; Avdelningen för Biomedicinsk teknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Acoustophoresis; Microfluidics; Ultrasound; Multinode; Cell Sorting; Particle Positioning; Cytometry; Lab-on-a-Chip; µTAS; Binary Separation; Acoustic Barriers; Acoustic Particle Manipulation; Acoustic Standing Waves; Blood Separation; Milk Analysis;

   Sammanfattning : Over the last decades the ongoing work in the fields of Lab-on-a-Chip and Micro-Total-Analysis-Systems has led to the discovery of new or improved ways to handle and analyse small volumes of biofluids and complex biosuspensions. The benefits of working on the microscale include: miniaturization of the analysis systems with less need for large sample volumes; temporal and spatial control of suspended particle/cell positions; low volume sheath flow lamination or mixing; novel separation techniques by using forces inherent to the microscale domain; precise regulation of sample temperatures and rapid analysis with less volumes needed to be processed. LÄS MER

7. 5. On acoustic particle and cell manipulation in microfluidic systems

   Författare :Filip Petersson; Avdelningen för Biomedicinsk teknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Medicin människa och djur ; Natural science; Naturvetenskap; Technological sciences; Teknik; acoustic particle manipulation standing wave; acoustic radiation force; laminar flow; Medicine human and vertebrates ; microparticles; ultrasound; lab-on-a-chip; µ-TAS; separation; cells; microfabrication; microtechnology; microfluidics;

   Sammanfattning : The combination of laminar flows in microfabricated channels and acoustic forces induced in ultrasonic standing wave fields offers new possibilities for advanced particle and cell manipulation in lab-on-a-chip applications as well as in relatively high throughput applications. Acoustic particle manipulation systems can be used e.g. LÄS MER