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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

The influence of growth rate on the energy metabolism of LS mouse cells in steady-state semicontinuous culture /

Woodruff, Peter Brian. January 1975 (has links)
No description available.
42

Molecular mechanisms of growth hormone action in adipogenesis

Shang, C. Unknown Date (has links)
No description available.
43

Novel aspects of Na⁺,K⁺-ATPase /

Aizman, Oleg, January 2002 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst., 2002. / Härtill 6 uppsatser.
44

Imaging studies of cell physiology with particular reference to Na,K-ATPase function /

Andersson, Ronnie M., January 2003 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst., 2003. / Härtill 6 uppsatser.
45

Cytoarcheology: understanding cellular turnover in the human brain and heart /

Bhardwaj, Ratan D., January 2007 (has links)
Diss. (sammanfattning) Stockholm : Karolinska institutet, 2007. / Härtill 3 uppsatser.
46

An in vivo study of how calcium cages affect the calibration of calcium indicator dyes /

Patino, Nicole, January 2004 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Vita. Includes bibliographical references (leaf 58). Also available on the Internet.
47

Spatially and temporally resolved delivery of stimuli to single cells using nanocapsules and laser manipulation /

Sun, Bingyun. January 2005 (has links)
Thesis (Ph. D.)-- University of Washington, 2005. / Vita. Includes bibliographical references (leaves 108-114).
48

An in vivo study of how calcium cages affect the calibration of calcium indicator dyes

Patino, Nicole, January 2004 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Vita. Includes bibliographical references (leaf 58). Also available on the Internet.
49

On the role of protein oxidation and heat shock proteins in senescence and fitness /

Fredriksson, Åsa. January 2006 (has links)
Thesis (Ph. D.)-- Göteborg University, 2006. / Includes bibliographical references.
50

Analysis of a Cyanobacterial UV-Sensitive Sensor Kinase Expressed in <i>Escherichia coli</i>

Adreian Alexander Paul (8770571) 28 April 2020 (has links)
<p>Exposure to ultraviolet radiation (UVR) has been shown to cause cellular damage in cyanobacteria. In response to UVR exposure, some cyanobacteria produce scytonemin, an indole-alkaloid sunscreen capable of absorbing long-wavelength UVA radiation. Previous genomic and transcriptomic analyses have determined that the production of scytonemin is controlled by a two-component regulatory system (TCRS), encoded by Npun_F1277 and Npun_F1278 in the cyanobacterium <i>Nostoc punctiforme </i>ATCC 29133. This TCRS is thought to not only regulate scytonemin biosynthesis, but also other responses to light and UVR stimuli. To better understand the functionality of the sensor kinase (SK) Npun_F1277 and to determine if it could activate alternative UVR protection pathways, the SK was expressed in <i>Escherichia coli.</i> The first objective of this study was to observe and quantify the level of fitness conferred to <i>E. coli</i> expressing Npun_F1277 from <i>N. punctiforme </i>(strain SKE) when exposed to white light, UVA, and UVB stress. Results from these experiments do not indicate that expression of the <i>N. punctiforme</i> SK conferred an advantage to <i>E. coli</i> under white light, UVA, or UVB stress based on growth alone. Therefore, the second objective was to study the expression of regulatory genes, such as response regulators, in <i>E. coli</i> that are homologs to those associated with the SK Npun_F1277 in <i>N. punctiforme </i>using quantitative-PCR. Expression of the selected genes was measured following exposure to white light and UVA after 30 and 60 minutes as well as UVB after 15 and 30 minutes. Comparison of SKE to empty-vector (EV) control cells exposed to the same stress showed that there were significant changes in the expression of important regulatory genes (e.g. <i>recA, spoT, relA</i>) in the SKE strain. Moreover, when comparing SKE cells exposed to the same conditions above to unstressed SKE cells, a similar result was seen for SKE cells exposed to UVA and UVB as was found in the studies comparing SKE to EV cells. These results suggest that the SK Npun_F1277 may play a role in multiple defense mechanisms of <i>N. punctiforme</i> in addition to initiation of the scytonemin biosynthesis pathway. </p>

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