Numerical Modeling of PO-218 Deposition in a Physiologically Realistic Lung Bifurcation Model

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Publisher :
ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.:/5 (423 download)

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Book Synopsis Numerical Modeling of PO-218 Deposition in a Physiologically Realistic Lung Bifurcation Model by : Khalid Ahmad Mously

Download or read book Numerical Modeling of PO-218 Deposition in a Physiologically Realistic Lung Bifurcation Model written by Khalid Ahmad Mously and published by . This book was released on 1997 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental data for lung bifurcations reveals complex geometries and distinct asymmetrical characteristic, which affects the localized distribution of particles deposited in the lung. This study is based on recently published numerical results for a symmetric physiological realistic bifurcation geometry Heistracher and Hofmann (1995) which has been extended here to the case of a asymmetric geometry. The asymmetric PRB model was used to study the flow field and the deposition of ultrafine particles for inspiratory and expiratory conditions. In the present study, we investigated the effect of different flow rates, representing human activity and deposition of different ultrafine particles representing radon daughter (Po-218), in the PRB model. Numerical results were compared with the limited available experimental and numerical data. The fluid dynamic computer program FIDAP was used for this purpose.

American Doctoral Dissertations

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Publisher :
ISBN 13 :
Total Pages : 784 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis American Doctoral Dissertations by :

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1998 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Strengthening Forensic Science in the United States

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Publisher : National Academies Press
ISBN 13 : 0309142393
Total Pages : 348 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Strengthening Forensic Science in the United States by : National Research Council

Download or read book Strengthening Forensic Science in the United States written by National Research Council and published by National Academies Press. This book was released on 2009-07-29 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scores of talented and dedicated people serve the forensic science community, performing vitally important work. However, they are often constrained by lack of adequate resources, sound policies, and national support. It is clear that change and advancements, both systematic and scientific, are needed in a number of forensic science disciplines to ensure the reliability of work, establish enforceable standards, and promote best practices with consistent application. Strengthening Forensic Science in the United States: A Path Forward provides a detailed plan for addressing these needs and suggests the creation of a new government entity, the National Institute of Forensic Science, to establish and enforce standards within the forensic science community. The benefits of improving and regulating the forensic science disciplines are clear: assisting law enforcement officials, enhancing homeland security, and reducing the risk of wrongful conviction and exoneration. Strengthening Forensic Science in the United States gives a full account of what is needed to advance the forensic science disciplines, including upgrading of systems and organizational structures, better training, widespread adoption of uniform and enforceable best practices, and mandatory certification and accreditation programs. While this book provides an essential call-to-action for congress and policy makers, it also serves as a vital tool for law enforcement agencies, criminal prosecutors and attorneys, and forensic science educators.

Toxicological Profile for Acrolein

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Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Toxicological Profile for Acrolein by :

Download or read book Toxicological Profile for Acrolein written by and published by . This book was released on 2007 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Biology of Chameleons

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Publisher : Univ of California Press
ISBN 13 : 0520276051
Total Pages : 304 pages
Book Rating : 4.5/5 (22 download)

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Book Synopsis The Biology of Chameleons by : Krystal A. Tolley

Download or read book The Biology of Chameleons written by Krystal A. Tolley and published by Univ of California Press. This book was released on 2013-11-16 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: They change color depending on their mood. They possess uniquely adapted hands and feet distinct from other tetrapods. They feature independently movable eyes. This comprehensive volume delves into these fascinating details and thorough research about one of the most charismatic families of reptilesÑChameleonidae. Written for professional herpetologists, scholars, researchers, and students, this book takes readers on a voyage across time to discover everything that is known about chameleon biology: anatomy, physiology, adaptations, ecology, behavior, biogeography, phylogeny, classification, and conservation. A description of the natural history of chameleons is given, along with the fossil record and typical characteristics of each genus. The state of chameleons in the modern world is also depicted, complete with new information on the most serious threats to these remarkable reptiles.

Mitochondria and Anaerobic Energy Metabolism in Eukaryotes

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Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110612410
Total Pages : 269 pages
Book Rating : 4.1/5 (16 download)

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Book Synopsis Mitochondria and Anaerobic Energy Metabolism in Eukaryotes by : William F. Martin

Download or read book Mitochondria and Anaerobic Energy Metabolism in Eukaryotes written by William F. Martin and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-12-07 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mitochondria are sometimes called the powerhouses of eukaryotic cells, because mitochondria are the site of ATP synthesis in the cell. ATP is the universal energy currency, it provides the power that runs all other life processes. Humans need oxygen to survive because of ATP synthesis in mitochondria. The sugars from our diet are converted to carbon dioxide in mitochondria in a process that requires oxygen. Just like a fire needs oxygen to burn, our mitochondria need oxygen to make ATP. From textbooks and popular literature one can easily get the impression that all mitochondria require oxygen. But that is not the case. There are many groups of organismsm known that make ATP in mitochondria without the help of oxygen. They have preserved biochemical relicts from the early evolution of eukaryotic cells, which took place during times in Earth history when there was hardly any oxygen avaiable, certainly not enough to breathe. How the anaerobic forms of mitochondria work, in which organisms they occur, and how the eukaryotic anaerobes that possess them fit into the larger picture of rising atmospheric oxygen during Earth history are the topic of this book.

Atlas of Neoplastic Pulmonary Disease

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Publisher : Springer Science & Business Media
ISBN 13 : 0387898395
Total Pages : 177 pages
Book Rating : 4.3/5 (878 download)

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Book Synopsis Atlas of Neoplastic Pulmonary Disease by : Armando E. Fraire

Download or read book Atlas of Neoplastic Pulmonary Disease written by Armando E. Fraire and published by Springer Science & Business Media. This book was released on 2010-07-23 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: The diagnosis of lung cancer and benign pulmonary put forward images that in our opinion best represent tumors can be challenging. This diagnosis can be facil- the tumor entities. In some instances, we have recruited itated by the study of images that allow recognition of the collaboration and materials from other workers in the patterns of disease, both at the clinical and pathologic ?eld. levels. Conceptually de?ned, atlases are specialized books The atlas is organized into 11 parts containing 41 that rely heavily upon images to illustrate any subject mat- chapters, closely following the 2004 Classi?cation of ter. Fitting with such a concept, this atlas was developed Lung Tumors by the World Health Organization (WHO). to ?ll a void in the approach to diagnosis. In contrast to Accordingly, the chapters represent a wide range of n- previous conventional atlases, this atlas is unique in that plastic lung entities. It begins with tumors of children images from four major disciplines (endoscopy, radiology, followed by sections on benign epithelial tumors, salivary histopathology, and cytopathology) involved in the study gland tumors, mesenchymal neoplasms, lymphoprol- and diagnosis of lung tumors are brought together in a erative disorders, cardcinoid tumors, and a section of single volume. miscellaneous tumors.

Angiogenesis Assays

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Publisher : John Wiley & Sons
ISBN 13 : 047002934X
Total Pages : 410 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis Angiogenesis Assays by : Carolyn A. Staton

Download or read book Angiogenesis Assays written by Carolyn A. Staton and published by John Wiley & Sons. This book was released on 2007-01-11 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Angiogenesis, the development of new blood vessels from the existing vasculature, is essential for physiological growth and over 18,000 research articles have been published describing the role of angiogenesis in over 70 different diseases, including cancer, diabetic retinopathy, rheumatoid arthritis and psoriasis. One of the most important technical challenges in such studies has been finding suitable methods for assessing the effects of regulators of eh angiogenic response. While increasing numbers of angiogenesis assays are being described both in vitro and in vivo, it is often still necessary to use a combination of assays to identify the cellular and molecular events in angiogenesis and the full range of effects of a given test protein. Although the endothelial cell - its migration, proliferation, differentiation and structural rearrangement - is central to the angiogenic process, it is not the only cell type involved. the supporting cells, the extracellular matrix and the circulating blood with its cellular and humoral components also contribute. In this book, experts in the use of a diverse range of assays outline key components of these and give a critical appraisal of their strengths and weaknesses. Examples include assays for the proliferation, migration and differentiation of endothelial cells in vitro, vessel outgrowth from organ cultures, assessment of endothelial and mural cell interactions, and such in vivo assays as the chick chorioallantoic membrane, zebrafish, corneal, chamber and tumour angiogenesis models. These are followed by a critical analysis of the biological end-points currently being used in clinical trials to assess the clinical efficacy of anti-angiogenic drugs, which leads into a discussion of the direction future studies should take. This valuable book is of interest to research scientists currently working on angiogenesis in both the academic community and in the biotechnology and pharmaceutical industries. Relevant disciplines include cell and molecular biology, oncology, cardiovascular research, biotechnology, pharmacology, pathology and physiology.

Scale Invariance

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Publisher : Springer Science & Business Media
ISBN 13 : 364215123X
Total Pages : 406 pages
Book Rating : 4.6/5 (421 download)

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Book Synopsis Scale Invariance by : Annick LESNE

Download or read book Scale Invariance written by Annick LESNE and published by Springer Science & Business Media. This book was released on 2011-11-04 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: During a century, from the Van der Waals mean field description (1874) of gases to the introduction of renormalization group (RG techniques 1970), thermodynamics and statistical physics were just unable to account for the incredible universality which was observed in numerous critical phenomena. The great success of RG techniques is not only to solve perfectly this challenge of critical behaviour in thermal transitions but to introduce extremely useful tools in a wide field of daily situations where a system exhibits scale invariance. The introduction of scaling, scale invariance and universality concepts has been a significant turn in modern physics and more generally in natural sciences. Since then, a new "physics of scaling laws and critical exponents", rooted in scaling approaches, allows quantitative descriptions of numerous phenomena, ranging from phase transitions to earthquakes, polymer conformations, heartbeat rhythm, diffusion, interface growth and roughening, DNA sequence, dynamical systems, chaos and turbulence. The chapters are jointly written by an experimentalist and a theorist. This book aims at a pedagogical overview, offering to the students and researchers a thorough conceptual background and a simple account of a wide range of applications. It presents a complete tour of both the formal advances and experimental results associated with the notion of scaling, in physics, chemistry and biology.

Introductory Biomechanics

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Publisher : Cambridge University Press
ISBN 13 : 1139461826
Total Pages : 10 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Introductory Biomechanics by : C. Ross Ethier

Download or read book Introductory Biomechanics written by C. Ross Ethier and published by Cambridge University Press. This book was released on 2007-03-12 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory Biomechanics is a new, integrated text written specifically for engineering students. It provides a broad overview of this important branch of the rapidly growing field of bioengineering. A wide selection of topics is presented, ranging from the mechanics of single cells to the dynamics of human movement. No prior biological knowledge is assumed and in each chapter, the relevant anatomy and physiology are first described. The biological system is then analyzed from a mechanical viewpoint by reducing it to its essential elements, using the laws of mechanics and then tying mechanical insights back to biological function. This integrated approach provides students with a deeper understanding of both the mechanics and the biology than from qualitative study alone. The text is supported by a wealth of illustrations, tables and examples, a large selection of suitable problems and hundreds of current references, making it an essential textbook for any biomechanics course.

Aerosol Science and Technology

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Publisher : RTI Press
ISBN 13 : 1934831018
Total Pages : 584 pages
Book Rating : 4.9/5 (348 download)

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Book Synopsis Aerosol Science and Technology by : David S. Ensor

Download or read book Aerosol Science and Technology written by David S. Ensor and published by RTI Press. This book was released on 2011-10-06 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerosol Science and Technology: History and Reviews captures an exciting slice of history in the evolution of aerosol science. It presents in-depth biographies of four leading international aerosol researchers and highlights pivotal research institutions in New York, Minnesota, and Austria. One collection of chapters reflects on the legacy of the Pasadena smog experiment, while another presents a fascinating overview of military applications and nuclear aerosols. Finally, prominent researchers offer detailed reviews of aerosol measurement, processes, experiments, and technology that changed the face of aerosol science. This volume is the third in a series and is supported by the American Association for Aerosol Research (AAAR) History Working Group, whose goal is to produce archival books from its symposiums on the history of aerosol science to ensure a lasting record. It is based on papers presented at the Third Aerosol History Symposium on September 8 and 9, 2006, in St. Paul, Minnesota, USA.

Cardiovascular Biomechanics

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Publisher : Springer
ISBN 13 : 3319464078
Total Pages : 462 pages
Book Rating : 4.3/5 (194 download)

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Book Synopsis Cardiovascular Biomechanics by : Peter R. Hoskins

Download or read book Cardiovascular Biomechanics written by Peter R. Hoskins and published by Springer. This book was released on 2017-02-16 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a balanced presentation of the fundamental principles of cardiovascular biomechanics research, as well as its valuable clinical applications. Pursuing an integrated approach at the interface of the life sciences, physics and engineering, it also includes extensive images to explain the concepts discussed. With a focus on explaining the underlying principles, this book examines the physiology and mechanics of circulation, mechanobiology and the biomechanics of different components of the cardiovascular system, in-vivo techniques, in-vitro techniques, and the medical applications of this research. Written for undergraduate and postgraduate students and including sample problems at the end of each chapter, this interdisciplinary text provides an essential introduction to the topic. It is also an ideal reference text for researchers and clinical practitioners, and will benefit a wide range of students and researchers including engineers, physicists, biologists and clinicians who are interested in the area of cardiovascular biomechanics.

Fuzzy Systems Engineering

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Publisher : Springer Science & Business Media
ISBN 13 : 9783540253228
Total Pages : 252 pages
Book Rating : 4.2/5 (532 download)

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Book Synopsis Fuzzy Systems Engineering by : Nadia Nedjah

Download or read book Fuzzy Systems Engineering written by Nadia Nedjah and published by Springer Science & Business Media. This book was released on 2005-05-20 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to reporting innovative and significant progress in fuzzy system engineering. Given the maturation of fuzzy logic, this book is dedicated to exploring the recent breakthroughs in fuzziness and soft computing in favour of intelligent system engineering. This monograph presents novel developments of the fuzzy theory as well as interesting applications of the fuzzy logic exploiting the theory to engineer intelligent systems.

Morphometry of the Human Lung

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Publisher : Academic Press
ISBN 13 : 1483225798
Total Pages : 164 pages
Book Rating : 4.4/5 (832 download)

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Book Synopsis Morphometry of the Human Lung by : Ewald R. Weibel

Download or read book Morphometry of the Human Lung written by Ewald R. Weibel and published by Academic Press. This book was released on 2013-10-22 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Morphometry of the Human Lung considers the developments in understanding the quantitative anatomy of the lung, and in the correlation of anatomy with physiology. This book is composed of 11 chapters, and begins with an overview of a systematic approach to a quantitative morphologic analysis of the architecture of the human lung, followed by a presentation of general problems of methodology and the derivation of reliable dimensional models of this organ. The subsequent chapters describe the methods of preparation of tissues, methods of random sampling, and adaptation of methodologies from other fields of science. These topics are followed by discussions the mathematical formulations for the translation of the data into the desired geometric forms and a technique of counting. The final chapters look into the mode of distribution and geometric forms that should eventually facilitate mathematical and physical considerations regarding the function of the lungs. These chapters also consider the application of these quantitative methods to the study of pathologic specimens, providing a most timely renovation of morphologic pathology. This book will be of value to pulmonologists, physiologists, and researchers who are interested in lung morphometry.

Comparative Dosimetry of Radon in Mines and Homes

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Publisher : National Academies Press
ISBN 13 : 0309044847
Total Pages : 257 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Comparative Dosimetry of Radon in Mines and Homes by : National Research Council

Download or read book Comparative Dosimetry of Radon in Mines and Homes written by National Research Council and published by National Academies Press. This book was released on 1991-02-01 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies of underground miners have provided a wealth of data about the risk of lung cancer from exposure to radon's progeny elements, but the application of the miner data to the home environment is not straightforward. In Comparative Dosimetry of Radon in Mines and Homes, an expert committee uses a new dosimetric model to extrapolate to the home environment the risk relationships found in the miner studies. Important new scaling factors are developed for applying risk estimates based on miner data to men, women, and children in domestic environments. The book includes discussions of radon dosimetry and the uncertainties concerning other risk factors such as age and smoking habits. The book also contains a thorough technical discussion of the characteristics of radioactive aerosols in domestic environments, the dose of inhaled radon progeny to different age groups, identification of respiratory tract cells at the greatest risk of carcinogenesis, and a complete description of the new lung dose model being developed by the International Commission on Radiological Protection as modified by this committee.

The ICU Book

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Publisher : Lippincott Williams & Wilkins
ISBN 13 : 1451161557
Total Pages : 1096 pages
Book Rating : 4.4/5 (511 download)

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Book Synopsis The ICU Book by : Paul L. Marino

Download or read book The ICU Book written by Paul L. Marino and published by Lippincott Williams & Wilkins. This book was released on 2012-02-13 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt: This best-selling resource provides a general overview and basic information for all adult intensive care units. The material is presented in a brief and quick-access format which allows for topic and exam review. It provides enough detailed and specific information to address most all questions and problems that arise in the ICU. Emphasis on fundamental principles in the text should prove useful for patient care outside the ICU as well. New chapters in this edition include hyperthermia and hypothermia syndromes; infection control in the ICU; and severe airflow obstruction. Sections have been reorganized and consolidated when appropriate to reinforce concepts.

A Framework for Assessing Effects of the Food System

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Publisher : National Academies Press
ISBN 13 : 030930783X
Total Pages : 340 pages
Book Rating : 4.3/5 (93 download)

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Book Synopsis A Framework for Assessing Effects of the Food System by : National Research Council

Download or read book A Framework for Assessing Effects of the Food System written by National Research Council and published by National Academies Press. This book was released on 2015-06-17 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: How we produce and consume food has a bigger impact on Americans' well-being than any other human activity. The food industry is the largest sector of our economy; food touches everything from our health to the environment, climate change, economic inequality, and the federal budget. From the earliest developments of agriculture, a major goal has been to attain sufficient foods that provide the energy and the nutrients needed for a healthy, active life. Over time, food production, processing, marketing, and consumption have evolved and become highly complex. The challenges of improving the food system in the 21st century will require systemic approaches that take full account of social, economic, ecological, and evolutionary factors. Policy or business interventions involving a segment of the food system often have consequences beyond the original issue the intervention was meant to address. A Framework for Assessing Effects of the Food System develops an analytical framework for assessing effects associated with the ways in which food is grown, processed, distributed, marketed, retailed, and consumed in the United States. The framework will allow users to recognize effects across the full food system, consider all domains and dimensions of effects, account for systems dynamics and complexities, and choose appropriate methods for analysis. This report provides example applications of the framework based on complex questions that are currently under debate: consumption of a healthy and safe diet, food security, animal welfare, and preserving the environment and its resources. A Framework for Assessing Effects of the Food System describes the U.S. food system and provides a brief history of its evolution into the current system. This report identifies some of the real and potential implications of the current system in terms of its health, environmental, and socioeconomic effects along with a sense for the complexities of the system, potential metrics, and some of the data needs that are required to assess the effects. The overview of the food system and the framework described in this report will be an essential resource for decision makers, researchers, and others to examine the possible impacts of alternative policies or agricultural or food processing practices.