Sökning: "Time Factors"

Visar resultat 31 - 35 av 5111 avhandlingar innehållade orden Time Factors.

  1. 31. Arsenic accumulation in plants for food and phytoremediation : Influence by external factors

    Författare :Claes Bergqvist; Maria Greger; Sylvia Lindberg; Lena Ma; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Arsenic; accumulation; availability; distribution; habitat; phy-toremediation; rhizosphere; redox potential; speciation; Plant Physiology; växtfysiologi;

    Sammanfattning : Arsenic (As) appears in the environment as various As species, which may vary in plant uptake and toxicity. Moreover, As exposure may vary between habitat due to availability and speciation, both of which are influenced by redox potential. To decrease As uptake, addition of silicate may be a tool. LÄS MER

  3. 32. Real-Time Certified MPC : Reliable Active-Set QP Solvers

    Författare :Daniel Arnström; Daniel Axehill; Anders Hansson; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In Model Predictive Control (MPC), optimization problems are solved recurrently to produce control actions. When MPC is used in real time to control safety-critical systems, it is important to solve these optimization problems with guarantees on the worst-case execution time. LÄS MER

  4. 33. Expensive time and busy money : A study of households' substitution between time and expenditures in consumption and household production with emphasis on the food section

    Författare :Jan Lindvall; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Household production; consumer behavior; informal sector; home economics; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : This study deals with household production. The subject is defined as activities with an outcome that can be substituted for that of the work of others. Household production is a part of the unrecorded, informal sector, and a number of previous studies have shown that this subsector is quite large. LÄS MER

  5. 34. Creating access to cancer care : an exploration of patient-provider encounters in primary care, and sociodemographic factors

    Författare :Cecilia Hultstrand; Senada Hajdarevic; Anna-Britt Coe; Mikael Lilja; Kristina Bengtsson Boström; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Access to care; patient-provider interaction; primary care; encounters; experiences; cancer; time to diagnosis; standardization; sociodemographic factors;

    Sammanfattning : Background: Access to care is widely discussed in both research and practice. However, previous research about access to care has mainly focused on individual behaviors of seeking care, and theories about access have mostly focused on quantifiable dimensions, such as supply and demand. LÄS MER

  7. 35. Fall-Related Hip Fracture : Predisposing and Precipitating Factors

    Författare :Breiffni Leavy; Liisa Byberg; Anna Cristina Åberg; Michaëlsson Karl; Melhus Håkan; Ann Bremander; Uppsala universitet; []
    Nyckelord :Co-existing disease; Epidemiology; Fall circumstances; Hip fracture; In-depth interviews; Mixed methods; Physical activity perceptions; Psychotropic drugs; Qualitative; Orthopaedics; Ortopedi; Epidemiologi; Epidemiology; Geriatrics; Geriatrik; Physiotherapy; Sjukgymnastik fysioterapi;

    Sammanfattning : A physically inactive lifestyle is a predisposing risk factor for fall-related hip fracture. The circumstances, or precipitating factors, surrounding hip fractures are, however, not well understood, a factor of relevance for Swedish adults who have one of the highest hip fracture risks in the world. LÄS MER