Sökning: "digital native"

Visar resultat 1 - 5 av 82 avhandlingar innehållade orden digital native.

1. 1. Bridging the distance : children’s strategies on the internet

   Författare :Elza Dunkels; Gun-Marie Frånberg; Lisbeth Lundahl; Ola Erstad; Umeå universitet; []
   Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Internet; net cultures; children; digital native; online threats; counter-strategies; online interviews; online ethics; Pedgogical work; Pedagogiskt arbete;

   Sammanfattning : This thesis deals with the following questions: What do children find negative on the Internet? What counter strategies do they use? How have they developed these strategies? The method used is one-to-one online interviews and the analyses are qualitative in nature. The sample is children in grade 6 of the Swedish compulsory school, aged between 11 and 13. LÄS MER

3. 2. Engineering of Native Cellulose Structure for Pharmaceutical Applications : Influence of Cellulose Crystallinity Index, Surface Area and Pore Volume on Sorption Phenomena

   Författare :Albert Mihranyan; Ragnar Ek; Maria Strømme; Hans Leuenberger; Uppsala universitet; []
   Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutics; microcrystalline cellulose; Cladophora sp. algae; crystallinity index; surface area and pore volume; fractals; stability; Galenisk farmaci; Pharmaceutics; Galenisk farmaci;

   Sammanfattning : Cellulose powders from various sources were manufactured and characterized to investigate the influence of their crystallinity index, surface area, and pore volume on sorption phenomena and the relevant pharmaceutical functionality. The influence of the cellulose crystallinity index on moisture sorption was important at low and intermediate relative humidities. LÄS MER

4. 3. Defects and Impurities in CdTe : An ab Initio Study

   Författare :Anna Lindström; Mattias Klintenerg; Susanne Mirbt; Biplab Sanyal; Peter Zahn; Uppsala universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Native defects; Compensation mechanisms; Semiconductor doping; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

   Sammanfattning : In this thesis defects and impurities in CdTe have been studied with ab initio methods. CdTe is a II-VI semiconductor with many important applications such as γ- and X-ray detectors, solar cells and medical imaging. LÄS MER

5. 4. Efficient and Flexible Characterization of Data Locality through Native Execution Sampling

   Författare :Erik Berg; Erik Hagersten; Mark D. Hill; Uppsala universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datavetenskap;

   Sammanfattning : Data locality is central to modern computer designs. The widening gap between processor speed and memory latency has introduced the need for a deep hierarchy of caches. Thus, the performance of an application is to a large extent dependent on the amount of data locality the caches can exploit. LÄS MER

7. 5. Imaging Islets of Langerhans by Positron Emission Tomography : Quantification of Beta-Cell Mass in the Native Pancreas and the Islet Graft

   Författare :Olof Eriksson; Anders Sundin; Olle Korsgren; Bengt Långström; Bo Nilsson; Håkan Ahlström; Habib Zaidi; Uppsala universitet; []
   Nyckelord :Positron Emission Tomography; [18F]FDG; dihydrotetrabenazine; Islet transplantation; IBMIR; beta-cell mass; MEDICINE; MEDICIN;

   Sammanfattning : Type 1 and 2 Diabetes Mellitus are a growing health problem throughout the world. There is an increasing  need for methodologies, which are both reliable and non-invasive to measure the amount of insulin-producing tissue (Beta-cell mass, or BCM), as well as rapidly quantify changes in the BCM due to the onset of disease, beta-cell replacement therapy, or other treatments. LÄS MER