Search for dissertations about: "Phd dissertations"

Showing result 1 - 5 of 996 swedish dissertations containing the words Phd dissertations.

  1. 1. Plants as Sources of Natural and Effective Acaricides Against Ixodes ricinus  (Acari: Ixodidae)

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Fawzeia Elmhalli; Uppsala universitet.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Acaricidal; Ixodes ricinus; Libyan plants; essential oils; Plant-derived acaricides.; Biology with specialization in Systematics; Biologi med inriktning mot systematik;

    Abstract : Ticks and tick-borne diseases are major health hazards worldwide, with increasing numbers of cases of Lyme disease and tick-borne encephalitis reported yearly. Meanwhile, concerns about the environmental impact and safety of chemical acaricides are driving research into alternative control methods, such as plant-based acaricides. READ MORE

  2. 2. On the complexity of dealing with introduced plants as cultural heritage : a historical multidisciplinary study of plants introduced to Norway from 1750 to 1900, exemplified with Abies alba Mill. (European silver fir) as a case species

    University dissertation from Ås : Norwegian University of Life Science, Faculty of Landscape and Society

    Author : Ulrika Ridbäck; [2018]
    Keywords : HUMANIORA; HUMANITIES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; plants; flora; Norway; European silver fir; Abies alba; plant introduction; history; landscape management;

    Abstract : .... READ MORE

  3. 3. Iron-Manganese complexes as mimics of the cofactor in Class I Ribonucleotide Reductases

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Michele Bedin; Uppsala universitet.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Iron - Manganese complexes; Ribonucleotide Reductase; biomimetic; Kemi; Chemistry;

    Abstract : A group of enzymes has recently been reported to have a manganese-iron carboxylate cofactor containing one Mn ion and one Fe ion in the active site. This cofactor is closely related to, and has chemical properties similar to, the well-known diiron-carboxylate cofactor in proteins like the ribonucleotide reductase (RNR) present in pathogens like Mycobacterium T or Chlamydia T. READ MORE

  4. 4. Regulation of thromboinflammation in therapeutic medicine Special focus on surface coating strategies

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Sana Asif; Uppsala universitet.; [2019]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : Biomaterials are an integral part of modern health care and offer potential treatment modalities to diseases and conditions otherwise intractable. However, the critical issue herein is incompatibility reactions. READ MORE

  5. 5. Linear, Non-Linear, and Synchronizing Spin Wave Modes in Spin Hall Nano-Oscillators

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Hamid Mazraati; KTH.; [2018]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; spin Hall effect; spin Hall nano-oscillators; threshold current; microwave; spin wave; synchronization; Physics; Fysik;

    Abstract : Spin Hall nano-oscillators (SHNOs) are nanoscale spintronic devices that generate microwave signals with highly tunable frequency. This thesis focuses on improving the signal quality of nanoconstriction-based SHNOs and also on developing a better understanding of their magnetization dynamics. READ MORE