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 20 of 120 for “"PTS"”.
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Structure and function of enzyme I of the PTS
… sugar phosphotransferase system (PTS) is responsible for the uptake and concomitant phosphorylation of many sugars in several species of bacteria. The first step of the PTS involves the phosphorylation of histidine containing phosphocarrier protein (HPr) by enzyme I (E.C. 2.7.3.9), …
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Regulation of the Mannose PTS Operon by the small RNA SgrS
… has been shown to stimulate degradation of the ptsG mRNA, encoding the major glucose transporter. This study demonstrates that SgrS regulates the genes encoding the mannose and secondary glucose transporter, manXYZ. Analysis of manXYZ mRNA stability and translation in the presence and absence of …
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Mutations of the glucose-pts in sublancin-resistant B. subtilis 168 ΔSPΒ
The mode of action of the glycocins is still unknown. The glycocin family is unusual due to the rarity of glycosylated peptides in bacteria and of cysteine S-glycosylations in general. S-glycosylation of cysteine has previously been shown to result in a metabolically more stable conjugation than …
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A power saving scheme for application in wireless sensor networks predictive transmission success (PTS)
The research develops an approach to preserving energy in Wireless Sensor Networks (WSNs). Energy is a constrained resource, and thus increasing the lifetime of nodes to extend the flexibility of network deployments and ease maintenance is a core challenge; the network can operate unattended, …
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Chemical, Physical, and Biological Factors Influencing Nutrient Availability and Plant Growth in a Pine Tree Substrate
Pine tree substrate (PTS) produced from freshly harvested loblolly pine (Pinus taeda L.) trees has potential for replacing or reducing the use of aged pine bark (PB) and peat moss as container substrates for horticulture crop production. The objective of this work was to determine the factors …
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The Influence of The Pep-Pts and Other Metabolic Systems On The Master Virulence Regulator Atxa and to xin Gene Expression In Bacillus Anthracis
… phosphotransferase system (PEP-PTS), termed PTS Regulatory Domains (PRD), and for their impact on virulence gene expression. Generally, the phosphorylation of a PCVR regulates protein activity and multimerization. AtxA is phosphorylated at two histidine residues - one in each of …
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New methods of partial transmit sequence for reducing the high peak-to-average-power ratio with low complexity in the ofdm and f-ofdm systems
… in the transmitter. Partial transmit sequence (PTS) is one of the effective PAPR reduction techniques that has been employed for reducing the PAPR value 3 dB; however, the high computational complexity is the main drawback of this technique. This thesis proposes novel methods and algorithms for …
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Purging e alte dosi di chemioterapia con reinfusione di cellule staminali autologhe in linfomi non Hodgkin follicolari resistenti/refrattari
… with rescue of purged or unpurged harvests in FL pts. At our institution form 1997 to 2007 28 pts with refractory/resistant FL were eligible for ASCT. Before high dose therapy they received 2-3 cycles of CHOP-like regimen (ACOD), followed by Cyclophosphamide 4g/mq to mobilize the stem cells (SC). …
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Psychopathy as a Conditional Reproductive Strategy in Boys and Men: An Evolutionary–Developmental Perspective
Psychopathic traits (PTs) are a constellation of traits and behavior that places individuals at-risk for engaging in lifelong chronic and severe antisociality, particularly among boys and men. Evolutionary perspectives have suggested some adaptive benefits (e.g., mating) to expressing PTs, whereas …
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Storage of Pine Tree Substrate Influences Plant Growth, Nitrification, and Substrate Properties
Pine tree substrate (PTS) is a relatively new substrate for container crop production. There are no detailed studies that elucidate how storage time impacts PTS chemical, physical, and biological aspects. The objective of this research was to determine how PTS storage time influenced PTS chemical …
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Posttraumatic growth: examining relationships with PTSD, coping style and social support
… found subgroups of posttraumatic stress (PTS) and posttraumatic growth (PTG), to identify clinically relevant factors that could distinguish the subgroups and to appraise the utility of categorizing individuals into subgroups based on PTS/PTG scores. A total of seven studies (and eight …
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Particle Thompson sampling
… distribution. Particle Thompson sampling (PTS) is an approximation of Thompson sampling based on the simple idea of replacing the continuous distribution by a discrete distribution supported at a set of particles. It is very flexible and easy to implement. This dissertation aims to analyze, …
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Chemotactic Sensory Transduction in Bacillus Subtilis: A New Enzyme and a New Pathway
… enolpyruvate-dependent-phosphotransferase system (PTS) in E. coli is accomplished using a chemoreceptor-independent signaling circuit in which phosphoryl flux through the PTS is monitored and used directly to modulate the activity of the chemotactic kinase. In contrast, chemotaxis towards PTS …
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Influence of occupational socialization on pre-service teachers' interpretation and delivery of the teaching games for understanding model
Research on how preservice teachers (PTs) learn to employ the Teaching Games for Understanding (TGfU) model is in its infancy. The purpose of this study was to examine the combined impact of a package of university-based methods and the employment of the model during an early field experience (EFE) …
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Birth Trauma: A mixed-methods investigation
… symptoms of posttraumatic stress disorder (PTSD) as a result. Whilst earlier work concentrated on prevalence and risk factors of clinically significant trauma, recent research focuses on the large group of women who experience childbirth as traumatic but do not necessarily meet the threshold …
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Content area reading instruction for secondary teacher candidates: a case study of a state-required online content area reading course
… to study 1) an online CARI course for PTS, and 2) a revised CARI course occasioned by new state teacher CARI standards (Minnesota Board of Teaching, 2012; Minnesota Office of the Revisor of Statutes, 2010). Results of this study fill a gap in the reading education literature at a time …
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O projeto terapêutico singular: uma revisão integrativa
O Projeto Terapêutico Singular (PTS) propõe-se a ser uma ferramenta de humanização e integralização do cuidado em saúde, utilizado majoritariamente nas práticas de saúde mental, se mostrando indispensável após uma grande renovação do “enfrentamento à loucura” no Brasil. A criação do PTS pode ser …
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Altering the Regiospecificity of C6 Indole Prenyltransferase Enzymes Towards Drug Development
… tailoring enzymes that modify natural products. PTs catalyze the attachment of prenyl moieties to natural product acceptors using pyrophosphate donors. This prenyl modification in small molecules leads to changes in structural and biological activities. Understanding the structural insights as …
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Design of High-Performance Piezoelectric Transformer-Based DC-DC Converters
Piezoelectric transformers (PTs) are a promising energy storage alternative for power converter miniaturization. PTs offer galvanic isolation and voltage transformation like traditional magnetic transformers, but have more advantageous power scaling properties at low volumes. Despite these …
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Analyse des pratiques professionnelles de travaileurs sociaux oeuvrant auprès des jeunes ayant des besoins complexes
… pratique des professionnels en travail social (PTS) intervenant auprès des jeunes, il existe très peu de documentation faisant état des pratiques des PTS francophones intervenant en milieux ruraux auprès des jeunes ayant des besoins complexes. Ce projet de recherche permet de rendre compte de …
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