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Endosymbiosis And Cell Biology [PDF Download]

Endosymbiosis and cell biology PDF
Author: Hainfried E. A. Schenk
Publisher: Walter de Gruyter GmbH & Co KG
Release Date: 2021-01-07
ISBN: 311138506X
Size: 12.89 MB
Format: PDF, ePub
Category : Science
Languages : de
Pages : 1084
View: 653

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Red Cell Structure And Its Breakdown [PDF Download]

Red Cell Structure and Its Breakdown PDF
Author: Eric Ponder
Publisher: Springer-Verlag
Release Date: 2013-07-02
ISBN: 3662250950
Size: 10.49 MB
Format: PDF
Category : Science
Languages : de
Pages : 129
View: 1908

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Application Of Hydrocyclone For Cell Separation In Mammalian Cell Perfusion Cultures [PDF Download]

Application of Hydrocyclone for Cell Separation in Mammalian Cell Perfusion Cultures PDF
Author:
Publisher: Cuvillier Verlag
Release Date: 2005-10-17
ISBN: 3736916345
Size: 59.25 MB
Format: PDF, Docs
Category : Psychology
Languages : de
Pages : 154
View: 7068

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The present work was carried out to investigate the possibility of hydrocyclone application for cell separation in mammalian cell perfusion cultures. Firstly, experiments were carried out to evaluate the physical characteristics controlling the separation performance of the hydrocyclone as well as the effect of the different operating conditions and different hydrocyclone geometrical dimensions on the separation process. Increasing the pressure applied by the hydrocyclone increased the feed and the underflow rates as well as the flow split and the flow ratio. In addition, decreasing the overflow diameter increased the applied pressure and accordingly the flow ratio and the separation efficiency of the hydrocyclone. Moreover, operating the hydrocyclone at pressures ranging from 0.85 to 1.40 bar is favorable, since the hydrocyclone performance is expected to be constant in this range. Due to the high flow rates during hydrocyclone operation, and to avoid the complete washout of bioreactor content, the hydrocyclone was intermittently operated during the experimental work. The second part of the work aimed to study the effect of different pressures generated by the hydrocyclone on the cell viability and the separation efficiency using two cell lines, BHK and HeLa cells. The separation efficiency increased by increasing the pressure. Also, the viability for both cell lines was not markedly affected by the applied pressures, and this was attributed to the short residence time of cells inside the hydrocyclone (from 0.18 to 0.1 s). Also, the viability of the cells in the overflow markedly decreased compared to the viability of the cells in the underflow, which was referred to the longer residence time of these cells inside the hydrocyclone compared to the cells found in the underflow. In addition, the possible collision between cells due to the reversal of the flow may affect the viability of cells found in the overflow, where the inner vortex moves upwards to the overflow and the outer vortex moves downwards to the underflow.

Eukaryotic And Prokaryotic Cell Structures [PDF Download]

Eukaryotic and Prokaryotic Cell Structures PDF
Author: Leslie Favor, Ph.D.
Publisher: The Rosen Publishing Group, Inc
Release Date: 2004-12-15
ISBN: 9781404203235
Size: 34.99 MB
Format: PDF
Category : Science
Languages : en
Pages : 48
View: 1747

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Explains in detail the structure and parts of a cell.

Fuel Cell Technology [PDF Download]

Fuel Cell Technology PDF
Author: Nigel Sammes
Publisher: Springer Science & Business Media
Release Date: 2006-05-14
ISBN: 1846282071
Size: 24.56 MB
Format: PDF, Docs
Category : Technology & Engineering
Languages : en
Pages : 298
View: 4759

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Fuel cells are a very promising technology for the clean and efficient production of power. Fuel Cell Technology is an up-to-date survey of the development of this technology and will be bought by researchers and graduate students in materials control and chemical engineering working at universities and institutions and researchers and technical managers in commercial companies working in fuel cell technology.

Cell Separation [PDF Download]

Cell Separation PDF
Author: Thomas G. Pretlow
Publisher: Academic Press
Release Date: 2014-05-10
ISBN: 1483219402
Size: 26.24 MB
Format: PDF, Kindle
Category : Science
Languages : en
Pages : 336
View: 250

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Cell Separation: Methods and Selected Application, Volume 3 provides information pertinent to the design and application of methods for the separation of cells. This book covers a variety of topics, including lymphoma cells, lectins, purification of cells from lung tumors, macrophage electrophoretic migration test, tissue heterogeneity, and characteristics of cultured cells. Organized into 13 chapters, this volume begins with an overview of the approaches in examining particular cell-surface properties and their role in the metastatic process. This text then examines lectins as important tools for identification and separation of cells, particularly of lymphocyte subpopulations. Other chapters consider the various methods that have been used to disperse rat pituitary tissue into single cells. This book discusses as well the different methods for isolating type II cells. The final chapter deals with the significance of having cell cultures homogeneous for a given cell type. This book is a valuable resource for cell biologists, experimental oncologists, hematologists, immunologists, and endocrinologists.

Cell To Cell Mapping [PDF Download]

Cell to Cell Mapping PDF
Author: C.S. Hsu
Publisher: Springer Science & Business Media
Release Date: 2013-03-09
ISBN: 1475738927
Size: 32.94 MB
Format: PDF, Docs
Category : Mathematics
Languages : en
Pages : 354
View: 837

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For many years, I have been interested in global analysis of nonlinear systems. The original interest stemmed from the study of snap-through stability and jump phenomena in structures. For systems of this kind, where there exist multiple stable equilibrium states or periodic motions, it is important to examine the domains of attraction of these responses in the state space. It was through work in this direction that the cell-to-cell mapping methods were introduced. These methods have received considerable development in the last few years, and have also been applied to some concrete problems. The results look very encouraging and promising. However, up to now, the effort of developing these methods has been by a very small number of people. There was, therefore, a suggestion that the published material, scattered now in various journal articles, could perhaps be pulled together into book form, thus making it more readily available to the general audience in the field of nonlinear oscillations and nonlinear dynamical systems. Conceivably, this might facilitate getting more people interested in working on this topic. On the other hand, there is always a question as to whether a topic (a) holds enough promise for the future, and (b) has gained enough maturity to be put into book form. With regard to (a), only the future will tell. With regard to (b), I believe that, from the point of view of both foundation and methodology, the methods are far from mature.

Annual Plant Reviews Cell Cycle Control And Plant Development [PDF Download]

Annual Plant Reviews  Cell Cycle Control and Plant Development PDF
Author: Dirk Inzé
Publisher: John Wiley & Sons
Release Date: 2008-04-15
ISBN: 0470994320
Size: 21.73 MB
Format: PDF, ePub, Docs
Category : Science
Languages : en
Pages : 384
View: 4399

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The cell cycle in plants consists of an ordered set of events, including DNA replication and mitosis, that culminates in cell division. As cell division is a fundamental part of a plant’s existence and the basis for tissue repair, development and growth, a full understanding of all aspects of this process is of pivotal importance. Cell Cycle Control and Plant Development commences with an introductory chapter and is broadly divided into two parts. Part 1 details the basic cell machinery, with chapters covering cyclin-dependent kinases (CDKs), cyclins, CDK inhibitors, proteolysis, CDK phosphorylation, and E2F/DP transcription factors. Part 2, which describes the cell cycle and plant development, covers cell cycle activation, cell cycle control during leaf development, endoreduplication, the cell cycle and trichome, fruit and endosperm development, the hormonal control of cell division and environmental stress, and cell cycle exit. The editor of this important book, Professor Dirk Inzé, well known and respected internationally, has brought together an impressive team of contributing authors, providing an excellent new volume in Blackwell Publishing’s Annual Plant Reviews Series. The book is an essential purchase for research teams working in the areas of plant sciences and molecular, cell and developmental biology. All libraries in universities and research establishments where biological sciences are studied and taught should have copies of this essential and timely volume.

Stem Cell Research [PDF Download]

Stem Cell Research PDF
Author: United States. Congress. Senate. Committee on Health, Education, Labor, and Pensions
Publisher:
Release Date: 2002
ISBN:
Size: 79.58 MB
Format: PDF
Category : Federal aid to medical research
Languages : en
Pages : 103
View: 6596

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Dynamics Of Cell Fate Decision Mediated By The Interplay Of Autophagy And Apoptosis In Cancer Cells [PDF Download]

Dynamics of Cell Fate Decision Mediated by the Interplay of Autophagy and Apoptosis in Cancer Cells PDF
Author: Iman Tavassoly
Publisher: Springer
Release Date: 2015-02-16
ISBN: 3319149628
Size: 13.12 MB
Format: PDF, Kindle
Category : Technology & Engineering
Languages : en
Pages : 79
View: 1461

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This interdisciplinary thesis introduces a systems biology approach to study the cell fate decision mediated by autophagy. A mathematical model of interaction between Autophagy and Apoptosis in mammalian cells is proposed. In this dynamic model autophagy acts as a gradual response to stress (Rheostat) that delays the initiation of bistable switch of apoptosis to give the cells an opportunity to survive. The author shows that his dynamical model is consistent with existing quantitative measurements of time courses of autophagic responses to cisplatin treatment. To understand the function of this response in cancer cells, he has provided a systems biology experimental framework to study quantitative and dynamical aspects of autophagy in single cancer cells using live-cell imaging and quantitative fluorescence microscopy. This framework can provide new insights on function of autophagic response in cancer cells.

The Molecular Biology Of Cell Determination And Cell Differentiation [PDF Download]

The Molecular Biology of Cell Determination and Cell Differentiation PDF
Author: Leon W. Browder
Publisher: Springer Science & Business Media
Release Date: 2012-12-06
ISBN: 146156817X
Size: 48.63 MB
Format: PDF
Category : Science
Languages : en
Pages : 460
View: 3767

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This series was established to create comprehensive treatises on specific topics in developmental biology. Such volumes serve a useful role in developmental biology, which is a very diverse field that receives contributions from a wide variety of disciplines. This series is a meeting ground for the various practi tioners of this science, facilitating an integration of heterogeneous information on specific topics. Each volume is comprised of chapters selected to provide the conceptual basis for a comprehensive understanding of its topic as well as an analysis of the key experiments upon which that understanding is based. The specialist in any aspect of developmental biology should understand the experimental back ground of the specialty and be able to place that body of information in context, in order to ascertain where additional research would be fruitful. The creative process then generates new experiments. This series is intended to be a vital link in that ongoing process of learning and discovery.

Pharmaceutical Applications Of Cell And Tissue Culture To Drug Transport [PDF Download]

Pharmaceutical Applications of Cell and Tissue Culture to Drug Transport PDF
Author: Glynn Wilson
Publisher: Springer Science & Business Media
Release Date: 2012-12-06
ISBN: 1475702868
Size: 25.52 MB
Format: PDF, ePub
Category : Medical
Languages : en
Pages : 387
View: 4340

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In recent years there have been rapid advances in the growth and differentiation of mammalian cells in culture. This has led to increasing use of such in vitro systems in a wide variety of studies on fundamental aspects of cell structure and function, including normal growth and metabolism, mechanisms of differentiation and oncogenesis, mechanisms of protein and membrane synthesis and cell polarity. Recent advances in our ability to grow cells, including human cells, on permeable supports, to generate confluent cellular barriers with the morphological polarity corresponding to their in vivo counterparts has greatly facilitated such studies. In particular these new techniques have led to an increasing interest in the use of cell and tissue culture systems as a means for examining the transport of drugs across epithelial and endothelial barriers. An obvious question is whether these new in vitro methodologies will provide convenient systems that can substitute for and replace animal models. Various research groups both in academia and in the pharmaceutical industry have been investigating these types of methodologies in order to develop convenient well characterized systems that can be used to examine basic aspects of transcellular transport and to evaluate the permeability of drug molecules and delivery systems. Of particular note is use of confluent cell layers to study the transport of large molecules such as peptides and proteins produced through recombinant DNA technology.

The Merkel Cell [PDF Download]

The Merkel Cell PDF
Author: Klaus Baumann
Publisher: Springer Science & Business Media
Release Date: 2013-03-09
ISBN: 3662103583
Size: 35.90 MB
Format: PDF, ePub
Category : Medical
Languages : en
Pages : 248
View: 3151

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Since their first description in 1875, Merkel cells have remained an elusive cell type. Their origin as well as their classification as mechanoreceptors have been a matter of controversy and intense discussion. The peptidergic granules in these cells are suggestive of neuroendocrine functions, but their discovery has raised additional questions regarding Merkel cell function. Essential aspects of structure, development and function of normal Merkel cells and Merkel cell carcinoma are presented in short chapters, providing concise and up-to date information on this fascinating cell type.