eBooks de Divulgación científica, página 11 de 130

There is a manuscript of Maharsi Bharadvaja titled Amsu-bodhini (with a commentary of Bodhananda) at the library of Oriental Institute, Vadodara (Baroda). In the introductory passages, it is said that in the original text of Bharadvaja, the aphorisms of Amsu-bodhini are divided into twelve chapters having one thousand sections. In order to make it understandable, Bodhananda wrote a commentary on it. Actually the available manuscript is the first chapter of the work, having a commentary over the first 50 aphorisms of Maharsi Bharadvdja. The title of this chapter is Srstvadhikarah i.e. the Evolution of the Universe. Description of aphorisms in first chapter describes creation of Solar system.

The second law of thermodynamics is an example of the fundamental laws that govern our universe and is relevant to every branch of science exploring the physical world. This reference summarizes knowledge and concepts about the second law of thermodynamics and entropy. A verbatim explanation of chemical thermodynamics is presented by the author, making this text easy to understand for chemistry students, researchers, non-experts, and educators.

Electricity was the scientific fashion of the Enlightenment, an Entertainment for Angels, rather than for Men. Lecturers attracted huge audiences to marvel at sparkling fountains, flaming drinks, pirouetting dancers and electrified boys. Enlightenment optimists predicted that this new-found power of nature would cure illnesses, improve crop production, even bring the dead back to life. Benjamin Franklin, better known as one of Americas founding fathers, played a key role in developing the new instruments and theories of electricity during the eighteenth century. Celebrated for drawing lightning down from the sky with a kite, Franklin was an Enlightenment expert on electricity, developing one of the most successful explanations of this mysterious phenomenon. But Patricia Fara, Senior Tutor of Clare College Cambridge, reveals how the study of electricity became intertwined with Enlightenment politics. By demonstrating their control of the natural world, Enlightenment philosophers hoped to gain authority over society. And their stunning electrical performances provided dramatic evidence of their special powers.

One principal cause of the little attention paid to Entomology in this country, has doubtless been the ridicule so often thrown upon the science. The botanist, sheltered now by the sanction of fashion, as formerly by the prescriptive union of his study with medicine, may dedicate his hours to mosses and lichens without reproach; but in the minds of most men, the learned as well as the vulgar, the idea of the trifling nature of his pursuit is so strongly associated with that of the diminutive size of its objects, that an entomologist is synonymous with every thing futile and childish. Now, when so many other roads to fame and distinction are open, when a man has merely to avow himself a botanist, a mineralogist, or a chemista student of classical literature or of political economyto ensure attention and respect, there are evidently no great attractions to lead him to a science which in nine companies out of ten with which he may associate promises to signalize him only as an object of pity or contempt. Even if he have no other aim than self-gratification, yet "the sternest stoic of us all wishes at least for some one to enter into his views and feelings, and confirm him in the opinion which he entertains of himself:" but how can he look for sympathy in a pursuit unknown to the world, except as indicative of littleness of mind?

Mycosporine-like amino acids (MAAs), have the property of absorbing ultraviolet rays, and are widely used as active ingredients in cosmetics such as sunscreens. They also have many bioactive properties that make them an attractive ingredient for pharmaceuticals and functional food. This book summarizes information about the molecular structures, activities and applications of mycosporine-like amino acids (MAAs). It aims to be an introductory book for undergraduate and graduate students in applied sciences, or as a handbook for researchers in pharmaceutical chemistry and cosmetics. Key features - 11 structured chapters covering the biochemistry of MAAs - Introduces readers to biochemical and synthetic pathways of MAAs - Presents information on many bioactive properties of MAAs including helioprotective, anti-inflammatory, antioxidant and anti-collagenase effects - Simple, clear explanations for learners - Academic and scholarly references for advanced readers - Illustrated appendices

An Introduction to Non-Ionizing Radiation provides a comprehensive understanding of non-ionizing radiation (NIR), exploring its uses and potential risks. The information is presented in a simple and concise way to facilitate easy understanding of relevant concepts and applications. Chapters provide a summary and include relevant equations that explain NIR physics. Other features of the book include colorful illustrations and detailed reference lists. With a focus on safety and protection, the book also explains how to mitigate the adverse effects of non-ionizing radiation with the help of ANSI guidelines and regulations. An Introduction to Non-Ionizing Radiation comprises twelve chapters, each explaining various aspects of non-ionizing radiation, including: Fundamental concepts of non-ionizing radiation including types and sources Interaction with matter Electromagnetic fields The electromagnetic wave spectrum (UV, visible light, IR waves, microwaves and radio waves) Lasers Acoustic waves and ultrasound Regulations for non-ionizing radiation. Risk management of non-ionizing radiation The book is intended as a primer on non-ionizing radiation for a broad range of scholars and professionals in physics, engineering and clinical medicine.

An Introduction to Plant Immunity is a comprehensive guide to plant immunology and stress response. The book covers the topic in 21 detailed chapters, starting from an introduction to the subject to the latest knowledge about plant disease resistance. The topics covered in the book include plant pathogens, plant diseases, plant immunity, passive defense mechanisms, acquired resistance, molecular genetics of plant immunology, protein function and genetic engineering. Each chapter provides a reader-friendly introduction along with clear sections detailing each topic. Additionally, detailed references for further reading are also provided. The combination of basic and advanced information on plant immunity make this book an essential textbook for students in botany and plant biology courses. Researchers interested in plant genomics and the effects of environmental and microbial interactions on plants will also benefit from this informative reference.

Uma menina marcada pela morte. Um poder ancestral despertado. Uma cidade à beira do mito. Ana Júlia Silva não era uma criança comum. Nascida sob uma tempestade em Salvador, sua vida era banhada pela

O diálogo acadêmico entre diferentes instituições de ensino superior, notadamente no âmbito dos Programas de Pós-Graduação Stricto Sensu, é uma prática imprescindível para o desenvolvimento da pesqui

Los riesgos son connaturales a las sociedades modernas. Las amenazas relacionadas con los sistemas financieros, los sistemas políticos, las tecnologías de la información, el terrorismo, la seguridad alimentaria, las epidemias o los desastres naturales asociados al cambio climatico, entre muchas otras, demandan marcos metodologicos rigurosos para el analisis y la gestion de riesgos. De esto se encarga la disciplina global del analisis de riesgos, cuyos conceptos basicos se esbozan en este libro. En particular, incide en la necesidad de predecir adecuadamente la ocurrencia de las posibles amenazas a las que se enfrenta el sistema sobre el que se esta realizando el analisis, asi como predecir sus impactos, para despues integrar toda esta informacion en un marco coherente y riguroso que ayude a tomar las mejores decisiones en relacion con la gestion de riesgos. El objetivo sera reducir la probabilidad de que se produzcan las amenazas consideradas y, llegado el caso, tratar de minimizar su impacto. Los autores realizaran este recorrido por el analisis de riesgos apoyandose en ejemplos y casos que han ido analizando estos años en dominios como la ciberseguridad, la seguridad aerea, la epidemiologia, la seguridad nacional, el sector del seguro y los vehiculos autonomos.

Comprender del comportamiento del clima, es de interes en diversos sectores de la produccion. En este sentido, el libro presenta resultados de la investigacion que tenia como proposito describir la incidencia ejercida por el clima en los requerimientos de agua del cultivo de la papa en la region central de Boyaca. Para esto, se presenta un modelo que relaciona la intensidad, duracion y frecuencia de las lluvias (IDF), para describir y predecir el comportamiento de la precipitacion, a traves del analisis probabilistico de la informacion registrada en estaciones agroclimatologicas, ubicadas en la cuenca del rio de la region, donde predomina el cultivo objeto de estudio. Posteriormente, se determinan requerimientos de agua para el cultivo, del calculo y relacion entre: la evapotranspiracion del pasto (ETo), el coeficiente unico (Kc), la evapotranspiracion bajo condiciones estandar (ETc), el coeficiente dual (suma del coeficiente de la evaporacion (Ke) y de la transpiracion (Kcb)) y el coeficiente de estres hidrico. Finalmente, al implementar los modelos anteriores con la caracterizacion del tuberculo y los registros de una estacion agroclimatologica durante 51 anos; se describe el comportamiento del clima, los requerimientos de agua en los posibles periodos del cultivo en cada uno de estos anos y se identifican las epocas que presentaron condiciones climatologicas favorables o desfavorables. Con esta informacion y el modelo IDF se pueden establecer periodos de retorno de los eventos criticos de precipitacion que incidiran en los calendarios de siembra.

The Gospel Coaltion Award of DistinctionChristian LivingOutreach Resource of the YearThe digital age is in the business of commodifying our attention. The technologies of our day are determined to keep us scrolling and swiping at all costs, plugged into a feedback loop of impatience, comparison, outrage, and contempt. Blind to the dangers, we enjoy its temporary pleasures, unaware of the damage to our souls.Jay Kims Analog Church explored the ways the digital age and its values affect the life of the church. In Analog Christian, he asks the same question of Christian discipleship. As the digital age inclines us to discontentment, fragility, and foolishness, how are followers of Jesus to respond? What is the theological basis for living in creative resistance to the forces of our day? How can Christians cultivate the contentment, resilience, and wisdom to not only survive but to thrive as we navigate the specific challenges of our age?

O livro resgata a história da Anatomia da Universidade Estadual de Londrina. O resgate histórico da área de Anatomia passa pela criação da Faculdade Estadual de Odontologia de Londrina (1962) e da Fa

Animal disease models are a vital tool to study diseases and associated conditions. Studies on animal models can, in some cases, be used as a basis for modeling and understanding human diseases. Biomedical scientists face a challenge to choose the correct animal model to study disease pathology, and neurological diseases are no exception to this rule. Animal Models for Neurological Disorders covers different animal models which have been used for studying neurological disorders. 13 topical chapters have been contributed by a group of experts on the subject with an aim to cover emerging experimental models of a range of neurological diseases encountered in the clinic including Alzheimers disease, psychosis, Parkinsons, Huntingtons disease, vascular dementia, schizophrenia, multiple sclerosis and brain tumors, among others. The chapters also inform readers about relevant clinical correlations in each disease model where appropriate. Animal Models for Neurological Disorders is intended for all scholarly researchers and students of biomedical sciences, pharmacology, medicine (oncology, neurology, psychiatry), pharmacy, biochemistry, and biotechnology. The organized contents of the book also serve as a quick reference point for scientists working in applied areas of neuroscience including the study of neurodegenerative diseases and cognitive dysfunction in living organisms.

This reference presents information about models utilized in experimental medicine and pharmaceutical research and development for several human diseases. Written by experts in immunology, cancer biology and pharmacology, the book provides readers with handy notes and updated data on animal models that are critical to research planning and lab execution. The main feature of the book is a set of 12 structured chapters that focus on a specific disease such as cancer, infectious diseases, autism, autoimmune diseases, Alzheimers disease and anemia. The contributors have gathered information on a wide range of genetic and physiological animal models that are employed in research with comparative charts that highlight their main differences. The book also includes chapters for special topics like food allergies and dentistry. Additional features of the book are an explanation of disease mechanisms that give an easy understanding, notes for idiopathic models and specific clinical conditions, and a list of references for advanced readers. Animal Models In Experimental Medicine is essential reading for scholars, graduate students and senior researchers in life sciences and clinical medicine. It also serves as a resource for professionals involved in bench-to-bedside pharmaceutical projects. Readership Scholars, graduate students and senior researchers in life sciences and clinical medicine; professionals involved in bench-to-bedside pharmaceutical projects.

Centinaia di carte di analisi meteorologica, curiosita, articoli di analisi scientifica per il primo tentativo di scrittura di un e-book sulla storia meteo-climatica di questo paese. Partiamo da ottobre che divideremo in due parti, questa e la prima che va dal 1948 fino al 1982, la seconda parte sara in uscita entro la fine di gennaio. Record termici, analisi dei principali eventi meteorologici, tutto corredato da mappe di analisi elaborate grazie ai dati NOAA. Un vero e proprio annale da consultare per studio o per curiosita. Buona lettura.

Il secondo capitolo dellannale meteoclimatico dedicato al mese di ottobre. Centinaia di immagini, approfondimenti ed utilissime informazioni sulla meteorologia del nostro paese e dellEuropa dal 1983 ad oggi. Tutti gli eventi meteorologici piu importanti: alluvioni, nevicate, fenomeni violenti, record storici di temperatura massima e minima accaduti negli ultimi trentaquattro anni nel mese di ottobre, raccolti in una opera unica nel suo genere ad un prezzo minimo, per coadiuvare i vostri studi o per soddisfare semplicemente la vostra curiosita. Un libro imperdibile da scaricare subito tra i vostri e-book.

La vertiginosa carrera por el desarrollo de las armas de destrucción masiva.«Un relato trepidante y electrizante.» Booklist «Preston explica hábilmente los momentos clave de la era preatómica y tej

La antimateria, el reverso de la materia, es uno de los aspectos más fascinantes de la física de partículas, siendo además la aniquilación materia-antimateria el proceso más energético que existe en el universo. Un objeto de antimateria seria indistinguible, a juzgar por su aspecto, de uno de materia; de hecho, una estrella de antimateria, de existir, brillaria de manera identica que una estrella de materia, emitiendo la misma luz. Vivimos rodeados por antimateria y por las radiaciones resultantes de la aniquilacion de esta contra la materia de su entorno. Por ejemplo, en la superficie terrestre estamos sometidos a una lluvia incesante de particulas, en todas direcciones, tanto de materia como de antimateria, y se estima que un 10 por ciento de la luz visible que nos llega del Sol se debe a la aniquilacion materia-antimateria que tiene lugar en su interior. Ademas, hacemos un uso constante de la antimateria: en los hospitales, como ingrediente esencial de las tecnicas de imagen PET, asi como en la industria y en la investigacion relacionada con ciencia y tecnologia de materiales. En este libro se explica que es la antimateria, como se produce, donde se encuentra, los usos y experimentos que se realizan con la misma, asi como el enigma de su desaparicion en los primeros instantes de existencia del universo.

El nuevo libro de los autores de Einstein para perplejos, Andrés Gomberoff y José Edelstein.En su nuevo libro, Andrés Gomberoff y José Edelstein reúnen un conjunto de veintitrés ensayos que se ofrecen como un muestrario, insuficiente pero necesario, de pequeñas joyas, hitos inverosimiles, momentos estelares que pueblan la construccion de la mas humana de las actividades: la ciencia. Luego del exito de Einstein para perplejos, esta nueva colaboracion pretende celebrar aquellos instantes en los que la exploracion cientifica se dejo llevar por una vision poetica e integradora del cosmos, sea a traves de la serena elegancia de la geometria o del proceloso torrente de la intuicion.