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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.
101

Insights into the molecular interactions of the neurogenic basic helix-loop-helix transcription factor, neuroD2, and the mechanism of regulation of a key target, RE-1 silencing transcription factor /

Ravanpay, Ali Cyrus, January 2007 (has links)
Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (leaves 61-63).
102

Regulation of midbrain dopaminergic neuron development by Wnts, sFRPs and bHLH proteins/

Kele Olovsson, Julianna M.V., January 2007 (has links)
Diss. (sammanfattning) Stockholm : Karolinska institutet, 2007. / Härtill 4 uppsatser.
103

The bHLH/PAS transcription factor SIM1 is a novel obesity gene

Holder, Jimmy Lloyd, Jr. January 2005 (has links) (PDF)
Thesis (Ph. D.) -- University of Texas Southwestern Medical Center at Dallas, 2005. / Vita. Bibliography: 123-135.
104

Myogenic BHLH transcription factors : their overlapping functions and direct regulation of MEF2C provide a regulatory network for the maintenance and amplification of vertebrate myogenesis

Valdez, Melissa Renee. January 2001 (has links) (PDF)
Thesis (Ph. D.) -- University of Texas Southwestern Medical Center at Dallas, 2001. / Vita. Bibliography: 108-125.
105

Transcriptional regulation of cardio-pulmonary development

Aiyer, Aparna R. January 2003 (has links) (PDF)
Thesis (Ph. D.) -- University of Texas Southwestern Medical Center at Dallas, 2003. / Vita. Bibliography: References located at the end of each chapter.
106

The role of MASH1-E protein heterodimers in MASH1 function in the developing neural tubes

Collisson, Tandi Louise. January 2003 (has links) (PDF)
Thesis (M.S.) -- University of Texas Southwestern Medical Center at Dallas, 2003. / Vita. Bibliography: 45-48.
107

The role of PTF1A in spinal cord development

Glasgow, Stacey Marie. January 2006 (has links)
Thesis (Ph.D.) -- University of Texas Southwestern Medical Center at Dallas, 2006. / Embargoed. Vita. Bibliography: 121-142.
108

Förväntningar på fördelar med projektsamarbeten : En fallstudie i utvecklingssamarbete mellan näringsliv, högskola och offentlig projektägare / Interorganizational cooperation, motives and benefits : A case study in corporate expectations of participation in development projects in Triple Helix structure

Jakobsson, Emma, Myhrman, Linnéa January 2017 (has links)
Offentlig projektägande är ett sätt att öka takten på miljöinnovationer och bidrar förutom till ett hållbarare samhälle även med tillväxt. Projektsamarbeten mellan näringsliv, offentlig aktör och högskola faller inom modellen Triple Helix och anses vara en effektiv form av samverkan där satsade resurser kan ge större avkastning. Deltagande i dessa projektsamarbeten kan stärka sin konkurrenskraft tack vare exempelvis genom tillgången till aktuell information och genom ett aktivt miljöarbete. Projektägarna upplever dock svårigheter att få deltagare till sina projektsamarbeten inom miljöutveckling. En ökad förståelse för företagens förväntningar kan bidra till en tydligare kommunikation kring de fördelar som kan uppstå. Kunskapen om vilka förväntningar som finns kan möjliggöra för projektägarna att tillföra ytterligare fördelar vilket gynnar företagen så väl som projektägarens möjlighet att värva framtida deltagare, och inte minst gynnar det miljöutvecklingen. Det finns en tydlig värderingsproblematik kring fördelar som kontaktskapande, "Grön Marknadsföring" och lärande vilket försvårar beslutsfattandet kring beslut som till stor del består av mer abstrakta fördelar än de som kan värderas i monetära termer. Det aktuella forskningsläget kartlägger upplevda fördelar efter att de uppstått och det finns därför en tydlig kunskapslucka kring hur företag resonerar när de ställs inför beslutet om deltagande i projektsamarbeten inom miljöutveckling. Studien har använt ett hermeneutiskt tolkningsperspektiv och ett kvalitativt angreppssätt med en fallstudie som forskningsdesign. Fallstudien har genomförts i ett projektsamarbete där projektmålet är att ta fram ett verktyg för ledningsarbete med kontinuerliga energibesparingar. Sex företag deltar och semistrukturerade intervjuer har genomförts med alla sex verksamhetsledarna som representerar företagen i projektet. Studien visar att alla deltagande företag har mål som liknar projektsamarbetets och att företagsidentiteten påverkar beslutet att delta. Det fanns ekonomiska motiv för deltagandet men hälften av verksamhetsledarna angav dessa sekundära. Fördelar som att projektsamarbetet anses imageförstärkande, utbyte av erfarenheter och skapande av kontakter som förväntas kunna nyttjas även efter projektets slut värderades i dessa fall högre. Vi ser att projektägaren kan tillföra fler upplevda fördelar genom att synliggöra företagens aktiva miljöarbete på ett tydligare sätt och underlätta de sociala relationerna att formas. För att attrahera deltagare är det viktigt för företagen att andra företag vill delta och att de känner tillit till projektägaren. / Public project ownership is a way to speed up the environmental innovation and contributing with a more sustainable society and development. Project collaboration between business, public and college belongs to the Triple Helix model, which is considered to be an effective form of collaboration where invested resources can give greater returns. Companies participating in this kind of collaborative can improve their competitiveness, for example through the availability of new information and through active environmental work. Despite these benefits, project owners find it difficult to recruit participants to such projects in environmental development. Increased understanding of business expectations can give opportunities to a better communication from the project owner about the benefits that may arise. The knowledge about what expectations there is can enable for the project owners to add further benefits, which benefit the companies as well as the project owner's ability to recruit future participants, and not to forget increase the environmental development. However, there is a clear valuation issue about benefits such as contact creation, "Green Marketing" and learning. The valuation problem makes decision making difficult for decisions about abstract benefits, rather than those that can be clearly valued in monetary terms. The study has used a hermeneutic interpretation perspective and a qualitative approach with a case study that used research design. The case study has been carried out in a project collaboration, where the project objective is to develop a tool for management work with continuous energy savings. Six companies participated in the project and interviews have been conducted with all six business leaders. The study shows that all participating companies have goals similar to project collaboration and that corporate identity influences the decision to participate. There were economic motivations to participate but they prioritized differently. Advantages expected from project collaboration include image, sharing experience and new contacts to use in the future. We see that the project owner can provide more perceived benefits by making clearer business active environmental work more visible and facilitating social relations. To attract participants, it is important for companies that other companies want to participate as well and that they trust the project owner.
109

Molecular Dynamics Simulation Of Transmembrane Helices And Analysis Of Their Packing In Integral Membrane Proteins

Iyer, Lakshmanan K 09 1900 (has links) (PDF)
No description available.
110

A Multiparameter Network Reveals Extensive Divergence Between <em>C. elegans</em> bHLH Transcription Factors: A Dissertation

Grove, Christian A. 11 September 2009 (has links)
It has become increasingly clear that transcription factors (TFs) play crucial roles in the development and day-to-day homeostasis that all biological systems experience. TFs target particular genes in a genome, at the appropriate place and time, to regulate their expression so as to elicit the most appropriate biological response from a cell or multicellular organism. TFs can often be grouped into families based on the presence of similar DNA binding domains, and these families are believed to have expanded and diverged throughout evolution by several rounds of gene duplication and mutation. The extent to which TFs within a family have functionally diverged, however, has remained unclear. We propose that systematic analysis of multiple aspects, or parameters, of TF functionality for entire families of TFs could provide clues as to how divergent paralogous TFs really are. We present here a multiparameter integrated network of the activity of the basic helix-loop-helix (bHLH) TFs from the nematode Caenorhabditis elegans. Our data, and the resulting network, indicate that several parameters of bHLH function contribute to their divergence and that many bHLH TFs and their associated parameters exhibit a wide range of connectivity in the network, some being uniquely associated to one another, whereas others are highly connected to multiple parameter associations. We find that 34 bHLH proteins dimerize to form 30 bHLH dimers, which are expressed in a wide range of tissues and cell types, particularly during the development of the nematode. These dimers bind to E-Box DNA sequences and E-Box-like sequences with specificity for nucleotides central to and flanking those E-Boxes and related sequences. Our integrated network is the first such network for a multicellular organism, describing the dimerization specificity, spatiotemporal expression patterns, and DNA binding specificities of an entire family of TFs. The network elucidates the state of bHLH TF divergence in C. elegans with respect to multiple functional parameters and suggests that each bHLH TF, despite many molecular similarities, is distinct from its family members. This functional distinction may indeed explain how TFs from a single family can acquire different biological functions despite descending from common genetic ancestry.

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