Sökning: "E Pettersson"

Visar resultat 1 - 5 av 97 avhandlingar innehållade orden E Pettersson.

  1. 1. Nitrate stable isotopes and major ions in snow and ice from Svalbard

    Författare :Carmen Paulina Vega Riquelme; V. A. Pohjola; R. Pettersson; E. Isaksson; C. E. Bøggild; Kumiko Goto-Azuma; Uppsala universitet; []
    Nyckelord :nitrate stable isotopes; nitrate; NOx proxies; ice cores; percolation; ion relocation; Svalbard; stabila isotoper av nitrat; nitrat; indikator för kväveoxider; iskärnor; perkolation; joniska omlokalisering; Svalbard; Earth Science with specialization in Physical Geography; Geovetenskap med inriktning mot naturgeografi;

    Sammanfattning : Increasing atmospheric reactive nitrogen (Nr), as consequence of human activities, has generated accumulation of nitrate (NO3-) in Arctic regions. The Arctic has fragile nitrogen limited ecosystems that can be altered by increases of dry or wet deposition of Nr. LÄS MER

  3. 2. Interactions between natural enemies and the dioecious herb Silene dioica

    Författare :Viktoria Pettersson; Barbara E. Giles; Lars Ericson; Pia Mutikainen; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Silene dioica; Delia criniventris; Caryocolum viscariella; Microbotryum violaceum; plant-herbivore interactions; plant -pathogen interactions; sex bias; sex rato; successional gradients; fitness effects; Skeppsvik Archipelago; Terrestrial ecology; Terrestisk ekologi; ekologisk botanik; Ecological Botany;

    Sammanfattning : About 6% of all angiosperms are dioecious. This separation of sexual function to male and female individuals, and the fundamentally different patterns of reproductive resource allocation that follows that separation, are thought to have important ecological and evolutionary consequences for plant enemy interactions. LÄS MER

  4. 3. Mobile Supported e-Government Systems : Analysis of the Education Management Information System (EMIS) in Tanzania

    Författare :Gudrun Wicander; John-Sören Pettersson; Anders G. Nilsson; Peter Rönnlund; Louise Yngström; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; e-Government systems; mobile telephony; SMS; blended digital system; education management; information systems; systems theory; developing countries; Tanzania; ICT4D; M4D; Information Systems; Informatik;

    Sammanfattning : e-Government systems are considered by both governments and international organisations to improve administration and management. In Tanzania, an e-government system for education administration, EMIS, is partly implemented but shows several limitations. LÄS MER

  5. 4. Function and organization of protein L7/L12 in the E. coli ribosome

    Författare :Ingvar Pettersson; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  7. 5. Measurable residual disease and clonal evolution in acute myeloid leukemia with focus on NPM1-mutations

    Författare :Louise Pettersson; Lund Patologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; AML; MRD; Measurable residual disease; NPM1; NPM1-mutation; NPM1 type A mutation; clonal evolution; clonal patterns; subclones; genetic evolution; qPCR; RQ-PCR; ddPCR; deep seq; deep sequencing; NGS; RT-qPCR; old; elderly; MFC; flow cytometry;

    Sammanfattning : Acute myeloid leukemia (AML) is the most common form of acute leukemia in adults, with mutations in the NPM1 gene occurring in almost one third of all cases. The ability to detect residual leukemia below the resolution of conventional microscopy is crucial for evaluation of relapse risk after therapy. LÄS MER