Sökning: "dry deposition"

Visar resultat 1 - 5 av 35 uppsatser innehållade orden dry deposition.

  1. 1. DRY POWDER FOR INHALATION - INFLUENCE OF MIXING PROCESS AND ADDITION OF MAGNESIUM STEARATE

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :Love Ivarsson; [2023]
    Nyckelord :inhalation; drug delivery; pulmonary drug delivery; API; FPF; FPD; DD; Turbula; Diosna; mixing energy; mixing time; mixing speed; pharmaceutical technology; Medicine and Health Sciences;

    Sammanfattning : For efficient treatment of many diseases of the lung, it is beneficial to deliver the medicine to the respiratory tract directly. This ensures a rapid response since it can enter the bloodstream directly through the alveolar epithelium. Consequently, also decreases systemic effects due to the local treatment. LÄS MER

  3. 2. The Potential Use of Degradable Starch Microspheres as a Carrier for Nasal Drug Administration

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :Rojda Unal; [2023]
    Nyckelord :Pharmaceutical technology; Nasal administration; Läkemedel; Pulverformiga bärare; Sfärer; Pulverinhalation; Bärarmaterial; Läkemedelseffektivitet; Pulverteknik; Partikelformulering; Nasal deposition; Biology and Life Sciences;

    Sammanfattning : Intranasal drug delivery is a practical and accessible method for treating localized symptoms as well as achieving systemic drug absorption. The approach takes advantage of the permeability, vascularization, and limited enzymatic activity of nasal tissue, leading to enhanced drug absorption. LÄS MER

  4. 3. Grain Size Analysis of Late Pleistocene Loess Deposits, Jersey

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Joakim Edlund; [2022]
    Nyckelord :Jersey; loess; grain size; ice age; past climate; Jersey; löss; kornstorlek; istid; forntida klimat;

    Sammanfattning : As the world faces the effects of rapid climate change it is essential that we understand how the Earth’s climate has evolved in recent geological history. The island of Jersey harbours loess deposits which hold clues to recent climate change which have not been extensively studied. LÄS MER

  5. 4. Hg concentration in humus soils in different Arctic and Subarctic tundra vegetation types : Including a method comparison for analyzing metals in humus soils

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Alice Sandvärn; [2022]
    Nyckelord :Hg concentration; vegetation types; Arctic tundra; elevation gradient; XRF;

    Sammanfattning : Heavy metals, such as mercury (Hg), have a long residence time in the atmosphere and can be transported long distances and deposited in the Arctic via wet and dry deposition. Still, there are few studies on the complex mercury cycle and how different plant groups absorb Hg. LÄS MER

  7. 5. Global Warming Induced by Oceanic Anoxic Event 1a Had a Pronounced Impact on the Early Cretaceous Terrestrial Vegetation of Southern Sweden

    Master-uppsats, Uppsala universitet/Paleobiologi

    Författare :Marcos Amores; [2022]
    Nyckelord :palynology; spore-pollen; biostratigraphy; oceanic anoxic event 1a; high-latitude; Early Cretaceous;

    Sammanfattning : The Mesozoic is punctuated by several rapid global warming events that are marked by the worldwide deposition of organic-rich marine sediments. These events, known as oceanic anoxic events (OAEs), are characterised by intervals where the worldwide carbon cycle suffers a disruption due to major palaeoceanographic and climatic shifts, leading to anoxic marine environments and the creation of black shales. LÄS MER