Describes the physical processes leading to the Kelvin-Helmholtz instability as a primary cause of clear air turbulence (CAT). Provides a thorough description of the several factors that increase the CAT probability. Covers in a comprehensive manner all the topics ranging from the discovery of CAT during World War II to modern techniques to observe and predict conditions conducive to CAT formation. Touches on the great variety of proposed CAT detection methods along with their performance and limitations. Suitable for a wide range of readers in physics, geo-engineering, meteorology, aerodynamics as well as in mechanical, aeronautical and manufacturing engineering interested in the phenomenon of CAT, its detection and its effect on aviation hazard.

Time Series Analysis in Seismology: Practical Applications provides technical assistance and coverage of available methods to professionals working in the field of seismology. Beginning with a thorough review of open problems in geophysics, including tectonic plate dynamics, localization of solitons, and forecasting, the book goes on to describe the various types of time series or punctual processes obtained from those systems. Additionally, the book describes a variety of methods and techniques relating to seismology and includes a discussion of future developments and improvements. Time Series Analysis in Seismology offers a concise presentation of the most recent advances in the analysis of geophysical data, particularly with regard to seismology, making it a valuable tool for researchers and students working in seismology and geophysics.

This collection features four peer-reviewed reviews on viral diseases affecting pigs. The first chapter summarises recent research on the causes and epidemiology of major bacteria, viruses and parasites found in pig production, focussing on those with a particular impact on safety and global production, such as African swine fever, Porcine Reproductive and Respiratory Syndrome (PRRS) and Porcine Epidemic Diarrhoea (PED). The second chapter reviews advances in understanding mechanisms of porcine viral disease transmission and pathogenesis. The chapter concludes with commonly used measures for prevention and control of viral diseases of pigs, emphasizing the importance of the vaccination programs as cornerstone of swine health programs. The third chapter discusses our current understanding of the mechanisms of resistance to the major respiratory diseases affecting pigs, including PRRS. The chapter considers the use of marker-selection and genetic modification as mechanisms to prevent the infection of PRRS and reduce its impact on swine health. The final chapter considers the transmission, clinical presentation, evolution and spread of two major diseases affecting swine production - PRRS and PED. The chapter reviews the impact of each virus on a global scale, as well as its impact on swine production in the United Kingdom.

Whilst it can mean enhanced biosecurity, intensive and globalised pig production (based on a narrowing genetic base) also potentially increases the risk of disease and its spread. It has been estimated that diseases can lower pig production efficiency by 10-15%, though financial losses can be much greater. Optimising pig herd health and production highlights the need to develop more preventative measures that can be implemented to tackle the increasing threat of disease. The book addresses recent developments in disease prevention, focussing on how farmers and producers can utilise feed management and housing to optimise pig health, as well as the role of vaccine development in preventing the onset of endemic and emerging diseases in pigs. Through highlighting the importance of understanding and identifying disease, the book showcases how our understanding of the mechanisms of transmission for some of the key porcine viral and bacterial diseases can be applied to optimise pig herd health and production.

This collection features four peer-reviewed literature reviews on bacterial diseases affecting pigs. The first chapter summarises recent research on the causes and epidemiology of major bacteria, viruses and parasites found in pig production, focussing on those with a particular impact on safety and global production, such as Escherichia coli (E. coli), Salmonella typhimurium and African swine fever virus. The second chapter discusses classical phenotypic characteristics and more advanced molecular techniques to identify and classify bacterial pathogens affecting swine health and performance. The chapter explores the different modes of transmission, as well as the commonly used measures for prevention and control, including vaccinations. The third chapter reviews the development of dysbiosis and post-weaning diarrhoea (PWD) in piglets and the consequent economic losses these diseases cause for the global pig industry. The chapter considers the role of animal nutrition and dietary strategies to optimise gut function as a means of preventing dysbiosis and PWD. The final chapter assesses methods of improving gut function in pigs to optimise health and prevent pathogen colonization. The chapter discusses research on genes associated with pathogen resistance and porcine immune response and reviews the role of dietary and nutritional strategies in preventing intestinal pathogen colonisation.

'...individual chapters provide very thorough, up-to-date reviews of health and welfare of pigs during different stages of production...The health section does a good job of summarizing the current major disease challenges facing pig production...If you want up-to-date reviews on some of the most pressing welfare issues in different stages of production, there are some good chapters included.' Animal Welfare Pig meat is the most widely-consumed meat in the world. Previous growth in production has relied, in part, on more intensive systems. In meeting rising demand, these systems face challenges such as the ongoing threat of zoonotic diseases, the need to improve feed efficiency in the face of rising costs, the need to reduce the environmental impact of pig production and increasing concerns about animal welfare. This volume looks at animal health and welfare. Part 1 reviews the main diseases affecting pigs as well as ways of managing diseases and boosting pig immune function. Part 2 reviews what we know about pig behaviour and appropriate welfare standards. It also assesses the welfare of different groups of pigs, from gilts and sows to weaned piglets and finishing pigs, as well as transport, lairage and slaughter. With its distinguished editor and international team of expert authors, this will be a standard reference for researchers in swine science, producers, government and other organisations involved in supporting pig production. It is accompanied by two companion volumes which focus on safety, quality and sustainability as well as animal breeding and nutrition.

El Analisis Espectral Singular (AES) es una tecnica no parametrica de reciente desarrollo para analizar series de tiempo. En esencia, el AES es un analisis de componentes principales en el dominio del tiempo de una serie de tiempo. El objetivo principal de esta tecnica es extraer informacion de la dinamica de una serie de tiempo mediante su descomposicion en una suma de componentes interpretables; por ejemplo, tendencia, estacionalidad, componentes oscilatorios y ruido blanco. Una vez que se han identificado los componentes se prosigue con el pronostico. El AES tambien permite analizar series de tiempo cuando se tienen datos perdidos. El AES se generaliza a varias series de tiempo, siempre y cuando estas tengan componentes similares. Este libro ofrece una revision detallada del AES y se aplica al analisis de temperaturas maximas registradas en cinco estaciones meteorologicas localizadas en el estado de Veracruz, Mexico. El analisis permitio identificar tendencia y estacionariedad en dichas series. El pronostico se hizo a dos anos."

La Citogenetica, a partir de sus avances en las ultimas decadas se ha constituido en una herramienta util, ya sea en el diagnostico de varias enfermedades de tipo genetico, sino tambien como metodo de visualizacion del genoma como un todo, lo cual permite saber cual es el estado de la estructura genetica de una especie o especies, y la relacion entre ellas. La familia Felidae es reconocida por ser una de las mas uniformes cromosomicamente. De esta, la mayoria de los felinos suramericanos son los que mayores variables presentan. Por otro lado, las altas presiones tanto humanas como naturales han aislado varias poblaciones de felinos, poniendolas en riesgo de extincion, lo cual, adicionalmente generaria una mayor diferenciacion interespecifica. Por esta razon es necesario planear y ejecutar estrategias de conservacion y la citogenetica es un elemento indispensable para la toma de decisiones al respecto."