Libros de ciencias, página 20 de 2693

Advances in Agronomy Volume 188 the latest release in this leading reference on agronomy contains a variety of updates and highlights new advances in the field each written by an international bo

Advances in Agronomy Volume 185 the latest release in this leading reference on agronomy contains a variety of updates and highlights new advances in the field each written by an international bo

This 1971 classic on linear models is once again available--as a Wiley Classics Library Edition. It features material that can be understood by any statistician who understands matrix algebra and bas

Extraction processes are essential steps in numerous industrial applications from perfume over pharmaceutical to fine chemical industry Nowadays there are three key aspects in industrial extraction processes economy and quality as well as environmental considerations

AQUACULTURE AND FISHERIES BIOTECHNOLOGY: GENETIC APPROACHES

This book comprehensively describes essential research and projects on climate change and biodiversity Moreover it includes contributions on how to promote the climate agenda and biodiversity conservation at the local level Climate change as a whole and global warming in particular are known to have a negative impact on biodiversity in three main ways Firstly increases in temperatures are detrimental to a number of organisms especially those in sensitive habitats such as coral reefs and rainforests Secondly the pressures posed by a changing climate may lead to sets of responses in areas as varied as phenology range and physiology of living organisms often leading to changes in their lifecycles especially but not only in reproduction losses in productivity or even death In some cases the very survival of very sensitive species may be endangered Thirdly the impacts of climate change on biodiversity will be felt in the short term with regard to some species and ecosystems but also in the medium and long term in many biomes Indeed if left unchecked some of these impacts may be irreversible Many individual governments financial institutes and international donors are currently spending billions of dollars on projects addressing climate change and biod

This book provides details and collective information on working principle, process mechanism, salient features, and unique applications of various advanced manufacturing techniques and processes belong. The book is divided in three sessions covering modern machining methods, advanced repair and joining techniques and, finally, sustainable manufacturing. The latest trends and research aspects of those fields are highlighted.

The years 2021 to 2030 have been designated as The United Nations Decade on Ecosystem Restoration Ecological restoration and biodiversity conservation efforts face unprecedented challenges especially in developing countries and areas such as the Hindu Kush Himalayan HKH region This huge HKH region which includes areas in eight separate countries Afghanistan Pakistan Nepal India China Bangladesh Myanmar and Bhutan is a biodiversity hotspot with a vast array of ecosystems landscapes peoples and cultures It is known as one of the pulses of the world However the HKH is also the world s largest and poorest mountain region where landscapes and environments have been severely damaged as a result of climate change and human activities Coordinating conservation and restoration policies sharing knowledge and funds and maintaining livelihoods are major challenges and are in urgent need of improvement This book details the past and current ecological problems in the HKH region and the threats and challenges that ecosystems and local people face It pays special attention to developments of transformative adaptations and presents examples of sustainable conservation and ecological restoration management practices Three primary questions are addresse

Since 2009 international climate activism has focused on stopping coalmining in solidarity with local and Indigenous struggles that are resisting coalmining Based on ethnographic and historic research in Australia and India this book compares the politics and resistance to coal in the two countries particularly focusing on the time period between 2009 and 2018 and the case of the Carmichael coalmine in Queensland and the Mahan coalmine in central India This book shows differences and similarities in the political economy of coal and creates understanding about the significantly different imperatives and narratives of anti coal environmentalism in Australia and India Through the Stop Adani movement and its collaboration with the Wangan and Jagalingou Traditional Owners and farmers against coalmining in Queensland and Greenpeace and forest based communities resisting coalmining in Madhya Pradesh Ruchira Talukdar not only explores anti coal movement dynamics but also how these movements grapple with the violation of Indigenous land rights through coal extraction in both places Drawing on differences and patterns in Australian and Indian anti coal activisms this book proposes a global outlook an intersectional framework beyond the singularity of stopping co

The use of laser pulses to alter the internal quantum structure of individual atoms and molecules has applications in quantum information processing, the coherent control of chemical reactions and in quantum-state engineering. This book presents the underlying theory of such quantum-state manipulation for researchers and graduate students. The book provides the equations, and approaches for their solution, which can be applied to complicated multilevel quantum systems. It also gives the background theory for application to isolated atoms or trapped ions, simple molecules and atoms embedded in solids. Particular attention is given to the ways in which quantum changes can be displayed graphically to help readers understand how quantum changes can be controlled.

This book will cover several topics to elaborate how proteomics may enhance agricultural productivity. These include crop and food proteomics, farm animal proteomics, aquaculture, microorganisms and insect proteomics. It will also cover several technical advances, which may address the current need for comprehensive proteome analysis.An emerging field of the proteomics aim is to integrate knowledge from basic sciences and to translate it into agricultural applications to solve issues related to economic values of farm animals, crops, food security, health, and energy sustainability. Given the wealth of information generated and to some extent applied in agriculture, there is the need for more efficient and broader channels to freely disseminate the information to the scientific community.

Enseñar a leer textos de ciencias invita a quienes tienen la responsabilidad del trabajo cotidiano en el aula a compartir un interesante recorrido que parte de una idea clave: la lectura no es una habilidad que se adquiere de una vez y para siempre, ni con independencia del texto que se lee. Encontrara el lector un itinerario que comienza situando a la ciencia como expresion del trabajo de los cientificos en un determinado momento social e historico; luego, una serie de consideraciones acerca de la construccion de conocimiento escolar en el area de ciencias naturales. El recorrido avanza y se detiene en la lectura como proceso de construccion de significado, producto de la interaccion entre un sujeto que lee y un texto y, tambien, en interaccion con otros lectores. En el ultimo tramo, las autoras analizan diversas situaciones de lectura para invitar a la reflexion en torno a cuales son las condiciones didacticas que favorecen que el alumno aprenda a leer textos y contenidos del area.

¿Por qué un libro de neurociencia para niños? Porque el cerebro es el que nos permite percibir, pensar y sentir. Este fascinante órgano juega un papel clave en el modo de hacer las cosas que hacemos,

Este libro es un epistolario que reúne la correspondencia de 20 años que Neil deGrasse ha mantenido con el público. El astrofísico ha recibido consultas muy diversas que van desde el origen del universo hasta los valores familiares, desde el significado de la vida hasta el porque de los fenomenos paranormales.El punto de confluencia de las cartas seleccionadas es la busqueda de la verdad por parte de cada individuo, asi como del significado y la comprension del lugar que cada uno ocupa en el universo. Por supuesto, las intenciones de cada remitente difieren; unos aspiran a ser astrofisicos, otros exponen sus creencias religiosas y hay incluso quienes atacan el conocimiento cientifico expuesto por DeGrass.

“Las ecuaciones, esos conjuntos de números y símbolos separados por el signo igual, son el alma de las matemáticas, la ciencia y la tecnología. Sin ellas, nuestro mundo no existiría en su forma actua

El amor es la piedra angular de nuestra vida personal y social. Se le han dedicado miles de reflexiones literarias y artísticas, pero conocemos muy poco de sus bases científicas. Sin embargo, la ciencia tiene muchisimo que decirnos sobre el amor, el proceso de enamoramiento, la ruptura o como reavivar una relacion.Sin amor nuestra vida no tendria sentido,pues estamos programados para encontrar a una persona, establecer vinculos con ella e intentar tener una vida juntos. Cuanto mas sabes sobre un tema, mas lo disfrutas. Conociendo los mecanismos neuronales del amor, entenderemos mejor como funciona para paliar frustraciones y fracasos, para hacer las cosas mejor cada dia y tratar de alcanzar la plenitud en nuestra vida, tambien en nuestra vida amorosa.

Quién no ha visto el cielo estrellado y se ha preguntado: “Qué significa todo esto”, “Cómo funciona el universo”, “Cuál es mi lugar en el cosmos”Si estás tan ocupado como para tomar clases o leer lib

¿Podemos calcular nuestra esperanza de vida a partir del momento físico en el que estamos? ¿Se puede estimular el proceso de autorregeneración de las células en una edad tardía? ¿Puede una bacteria hallada en la isla de Papua alargarnos la vida?La humanidad ha estado siempre obsesionada con la idea de la inmortalidad y los secretos de la longevidad siguen siendo un misterio, hasta que la ciencia ha empezado a observar la naturaleza en busca de respuestas. Este libro nos cuenta por que y como envejecemos, que podemos aprender de la naturaleza para vivir mas años y que estrategias seguir en nuestra vida para mantener un buen estado fisico hasta la vejez. Un viaje fascinante en el que encontramos desde medusas que rejuvenecen con el tiempo hasta tiburones que son mas viejos que America, langostas que no tienen edad y, finalmente, las claves de la longevidad.