Essays about: "membrane"

Showing result 1 - 5 of 423 essays containing the word membrane.

  1. 1. Capacitive Micromachined Ultrasonic Transducers for Underwater Applications

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Patrick Johansson; [2021]
    Keywords : CMUT; capacitive; micromachined; ultrasonic; transducer; model;

    Abstract : Capacitive micromachined ultrasonic transducers (CMUT:s) are often used in medical imaging and they show some promise as underwater transducers. This thesis collates the available information about how CMUT:s operate, their strengths and weaknesses and investigates their efficiency as an underwater transducer. READ MORE

  2. 2. Effects of melatonin and Single Layer Centrifugation on cryosurvival of ram semen samples

    University essay from SLU/Dept. of Clinical Sciences

    Author : Lea Enenkelová; [2021]
    Keywords : sheep reproduction; Jezersko-Solčava sheep breed; colloid centrifugation; melatonin;

    Abstract : The composition of the ram sperm membrane renders it vulnerable to injury during cryopreservation. Production of reactive oxygen species, which are by-products of metabolism, increases during freezing and thawing, causing damage to sperm membranes and acrosomes as well as affecting mitochondrial activity. READ MORE

  3. 3. Extracellular vesicles (EVs):roles in cell proliferation and transcriptomic analysis of HUVEC receiving cancerderived EVs

    University essay from Högskolan i Skövde/Institutionen för biovetenskap

    Author : Benyapa Tangruksa; [2021]
    Keywords : ;

    Abstract :  Extracellular vesicles (EVs) are released by almost  all types of cells. EVs play an    important role in cell-to-cell communication by sending biomolecules such as mRNAs to    other cells via endocytosis. READ MORE

  4. 4. Considerations and Novel Technologies in Industrial Water Treatment - Treatment of challenging wastewater

    University essay from KTH/Kemiteknik

    Author : Nils Toll; [2021]
    Keywords : Industrial water treatment; considerations; novel technologies; BOD; COD; organic waste; heavy metals; desalination; Industriell vattenrening; nyckelfaktorer; nya teknologier; organiskt avfall; tungmetaller; avsaltning;

    Abstract : Industriell vattenrening är ett extremt viktigt område inom Miljöskyddsteknik då 60% av allt sötvatten inom Sverige används av industrier. Substanser som PFAS, aromatiska textilfärger, fenol och läkemedelsrester är extra utmanande då dessa kan vara gifta för biologisk rening. READ MORE

  5. 5. PDGF-C signaling is required for normal cerebellar development : An analysis of cerebellar malformations in PDGF-C impaired mice

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Sara Gillnäs; [2021]
    Keywords : PDGF-C; Cerebellum; Development; PDGFRɑ; Ependyma; Neural migration;

    Abstract : Platelet-derived growth factor-C (PDGF-C) and its tyrosine kinase receptor PDGFRɑ have been shown to contribute to several key processes during central nervous system (CNS) development, including normal vascularization and formation of cerebral ventricles and basal membrane of the meninges. Due to redundancy between PDGF-C and PDGF-A, PDGF-C specific roles are sometimes masked and difficult to determine. READ MORE