Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"PsbS"”.
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An exploration into factors and influences towards increased effectiveness of Public Sector Boards (PSBs) in Abu Dhabi
… within the context of Public Sector Boards (PSBs) in Abu Dhabi- a fast growing developing economy. The present research, a first time study, explores the issues related to Board effectiveness, including Director’s capabilities and contribution within four major public sector Boards. Following …
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The Evolution of Photosystem II Subunit S across the Green Lineage
… NPQ is the Photosystem II subunit S protein (PsbS), which is activated in response to high light and interacts with photosystem II to cause quenching. Algae and moss, however, are thought to predominantly use another protein to regulate NPQ, the Light Harvesting Complex Stress-Related protein …
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An investigation into the antecedents of prosocial service behaviours : a travel service context
… factors affecting prosocial service behaviours (PSBs). This thesis answers the following questions: What are the antecedents of PSBs in a travel service setting? It is argued that managerial strategies indirectly influence PSBs via their direct influence on job attitudes. This thesis represents …
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Investigating the cell surface code for compartment boundary formation in Drosophila embryos
… boundaries, called parasegment boundaries (PSBs), responsible for cell sorting in the early Drosophila embryo. I focused on the role of the PSBs during axis extension at gastrulation, when the boundaries first become mechanically active. With the aim of identifying new cell surface molecules …
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A Lifespan Perspective on Proactive Socioemotional Behaviors and Work Attitudes and Performance
… workers used proactive socioemotional behaviors (PSBs) to experience emotionally rewarding social interactions, and whether these behaviors particularly benefited the work attitudes and performance of older workers, as predicted by lifespan development perspectives. Workers provided examples of …
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Emotion Knowledge and Relational Aggression in Preschoolers
… Social Behavior Scale-Teacher and Peer Forms (PSBS-T; PSBS-P; Crick et al., 1997) to assess relationally-aggressive behaviors. Results of the study indicated that four-year-old children engage in more relationally-aggressive behaviors as rated by teachers than three-year-old children. In …
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Regulation of the chloroplast light harvesting antenna by plastoquinone redox: Modulation of chlorophyll metabolism and thylakoid complex organization
… to be mediated by both LHC phosphorylation and PsbS protonation, i.e., State Transitions and Non-Photochemical Quenching. Together, these processes suggest the importance of a conformational state of the light harvesting antenna around PSII in regulating LHC. The work presented here further …
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Multi-omic profiling of NPQ improved nicotiana tabacum lines under uniform light conditions
… of NPQ mediating proteins (VDE, ZEP, & PSBS) using an Arabidopsis T-DNA cassette in Nicotiana tabacum L. (tobacco) has been shown to improve the rate of NPQ relaxation, resulting in yield increases under both greenhouse and field conditions (Kromdijk et al., 2016). However, the …
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Fatigue Modeling of U720 --- a Multi-Scale Approach in Understanding Grain Boundary Effects on Crack Initiation
… that cracks initiate near twin boundaries from PSBs spanning a single large grain with a favorable orientation or multiple grains connected by low-angle GBs. Additionally, by varying the neighboring grains, we can account for scatter in the fatigue life. The uniqueness of our approach is that it …
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Fatigue modeling of U720 – A multi-scale approach in understanding grain boundary effects on crack initiation
… that cracks initiate near twin boundaries from PSBs spanning a single large grain with a favorable orientation or multiple grains connected by low-angle GBs. Additionally, by varying the neighboring grains, we can account for scatter in the fatigue life. The uniqueness of our approach is that it …
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The politics of ethnic minority radio in South Africa
… The study shows the challenges faced by PSBs in an African context. The discussion also involves the role of radio in the construction of a transient national identity and nation-building as a process. The main findings included the simmering tensions, intense politics and rivalry between …
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Regulation of the stomatal response to red light
… with altered levels of Photosystem II subunit S (PsbS) in the Arabidopsis Col-0 genetic background, as well as in the ascorbate peroxidase1 (apx1) H2O2 scavenging mutant. Notably, alterations in stomatal red light responses corresponded with altered guard cell H2O2 accumulation and could be …
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The media's role in the consolidation of democracy in South Africa: the case of the SABC's soap operas as a cultural public sphere
… interference than other media types. Like other PSBs, the SABC has clearly spelt-out objectives that are linked to the national developmental objectives, including the goal of promoting and deepening democracy. This connection makes it possible to evaluate the selected entertainment case studies …
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The function of plant chloroplast redox systems in adaptation to light
… ntrc hemos construido un doble mutante ntrc-psbs carente de qE. Estas plantas recuperan parcialmente el fenotipo del mutante ntrc en cuanto a crecimiento y nivel de clorofila, así como, la actividad del fotosistema II. Dichos resultados revelan un nuevo papel para NTRC en el control de la …