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- Universidade de São Paulo, Programa de Pós-Graduação em Letras Clássicas, São Paulo, Brasil (1)
The goal of the project was to establish knock down of mRNA in human mesenchymal stem cells. Since these cells are difficult to transfect, a viral approach is needed to achieve sufficient expression of e. g. shRNA in a high percentage of cells to allow for an efficient silencing of corresponding mRNAs. For this purpose for every gene product of interest, a number of shRNA clones have to be tested to detect an individual shRNA with sufficient efficacy. Lentiviral systems for shRNA approaches have recently become available. The principal advantage of the lentiviral system is that it allows gene silencing in nondividing cells and therefore expands the usefulness of the RNAi-based gene silencing system. Lentivirus-delivered shRNAs are capable of specific, highly stable and functional silencing of gene expression in a variety of cell types. Since the viral transfection of MSCs is a time consuming process that involves transfection of 293 FT cells plus transduction of target cells, for this thesis the following approach was chosen: genes of interest were checked for expression in 293FT cells by RT-PCR. These gene products can be silenced in 293FT cells simply by transfection of shRNA clones and efficacy was subsequently tested by RT-PCR. Beyond this thesis then the project can proceed with effective clones to transduce primary MSCs with individual shRNA clones identified as effective silencing tool in this thesis.
This textbook provides an introduction to common methods of performance modeling and analysis of communication systems. These methods form the basis of traffic engineering, teletraffic theory, and analytical system dimensioning. The fundamentals of probability theory, stochastic processes, Markov processes, and embedded Markov chains are presented. Basic queueing models are described with applications in communication networks. Advanced methods are presented that have been frequently used in recent practice, especially discrete-time analysis algorithms, or which go beyond classical performance measures such as Quality of Experience or energy efficiency. Recent examples of modern communication networks include Software Defined Networking and the Internet of Things. Throughout the book, illustrative examples are used to provide practical experience in performance modeling and analysis.
Target group: The book is aimed at students and scientists in computer science and technical computer science, operations research, electrical engineering and economics.
This volume brings together several authors from different areas of psychology and the neighbouring social sciences. Each one contributes their own perspective on the growing interest topic of subjective well-being. The aim of the volume is to present these divergent perspectives and to foster communication between the different areas. Split into three parts, this volume initially discusses the general perspectives of subjective well-being and addresses fundamental questions, secondly it discusses the dynamics of subjective well-being and more specific research issues to give a better understanding of the general phenomenon, and thirdly the book emphasizes the social context in which people experience and report their happiness and satisfaction. The book will be of great interest to social and clinical psychologists, students of psychology and sociology and health professionals.
The need for mental health support within the Parkinson’s disease (PD) community has never been greater, yet many practitioners lack the knowledge or experience to address the unique challenges associated with PD. This book serves as a practical guide for mental health professionals to assist individuals with PD and caregivers through the use of cognitive-behavioral therapy techniques, with the goal of enhancing their well-being and quality of life. The book includes a review of information about PD and mental health, and four structured group programs designed to address issues that are common in people with PD and caregivers:
• Coping with stress and illness
• Communicating about PD
• Emotional expression in PD
• Interventions for caregivers
The programs presented in this book can be utilized as they are, personalized for individual use, or adapted for research protocols. Additionally, the information can serve as a valuable resource for people with PD and their family members, who can learn about PD and be introduced to evidence-based strategies that can be used conjointly with professionals to improve their experience of living with PD.
The Orphic Hymns consist of a prooemium and 87 hymns addressed to several deities in a late Orphic initiation of sorts. They were composed probably in Asia Minor during the second or third century CE. The bulk of these hymns are made up of divine epithets often linked together in chains of considerable length. The lexicon attempts to give a comprehensive account of the roughly 850 epithets, bringing together the most relevant information scattered in the scholarly literature and adding others from various sources (literary, epigraphic, lexicographic, scholia etc.) in order to provide an overview of their usage and the main details of their models.
For a large fraction of the proteins expressed in the human brain only the primary
structure is known from the genome project. Proteins conserved in evolution can
be studied in genetic models such as Drosophila. In this doctoral thesis monoclonal
antibodies (mAbs) from the Wuerzburg Hybridoma library are produced and
characterized with the aim to identify the target antigen. The mAb ab52 was found
to be an IgM which recognized a cytosolic protein of Mr ~110 kDa on Western
blots. The antigen was resolved by two-dimensional gel electrophoresis (2DE) as a
single distinct spot. Mass spectrometric analysis of this spot revealed EPS-15
(epidermal growth factor receptor pathway substrate clone 15) to be a strong
candidate. Another mAb from the library, aa2, was already found to recognize
EPS-15, and comparison of the signal of both mAbs on Western blots of 1D and
2D electrophoretic separations revealed similar patterns, hence indicating that both
antigens could represent the same protein. Finally absence of the wild-type signal
in homozygous Eps15 mutants in a Western blot with ab52 confirmed the ab52
antigen to be EPS-15. Thus both the mAbs aa2 and ab52 recognize the Drosophila
homologue of EPS-15. The mAb aa2, being an IgG, is more suitable for
applications like immunoprecipitation (IP). It has already been submitted to the
Developmental Studies Hybridoma Bank (DSHB) to be easily available for the
entire research community.
The mAb na21 was also found to be an IgM. It recognizes a membrane associated
antigen of Mr ~10 kDa on Western blots. Due to the membrane associated nature
of the protein, it was not possible to resolve it by 2DE and due to the IgM nature of
the mAb it was not possible to enrich the antigen by IP. Preliminary attempts to
biochemically purify the endogenously expressed protein from the tissue, gave
99
promising results but could not be completed due to lack of time. Thus
biochemical purification of the protein seems possible in order to facilitate its
identification by mass spectrometry. Several other mAbs were studied for their
staining pattern on cryosections and whole mounts of Drosophila brains. However,
many of these mAbs stained very few structures in the brain, which indicated that
only a very limited amount of protein would be available as starting material.
Because these antibodies did not produce signals on Western blots, which made it
impossible to enrich the antigens by electrophoretic methods, we did not attempt
their purification. However, the specific localization of these proteins makes them
highly interesting and calls for their further characterization, as they may play a
highly specialized role in the development and/or function of the neural circuits
they are present in. The purification and identification of such low expression
proteins would need novel methods of enrichment of the stained structures.