Novedades del último mes en eBooks de Química

Muchos estudiantes perciben la termodinámica química como una disciplina abstracta y desconectada de la vida cotidiana. Este libro, basado en un enfoque didáctico innovador, busca cambiar esa percepcion. Los autores presentan una introduccion clara y accesible a las dos magnitudes fundamentales de esta rama de la fisicoquimica: la entropia y, especialmente, el potencial quimico. Las consideraciones teoricas se integran con experiencias cotidianas en mas de ochenta experimentos demostrativos, muchos de los cuales estan disponibles en linea en formato de video. Diseñado principalmente para estudiantes de primer año de universidad, el texto requiere unicamente conocimientos matematicos basicos, convirtiendose en una puerta de entrada a esta fascinante area de la quimica.

En 2011 la revista Physics Procedia publicó un artículo científico que reportaba una anomalía en un experimento realizado en un laboratorio francés. Un equipo de investigadores reportó un fenómeno de evaporacion de neutrones que contradice los fundamentos de las teorias fisicas actuales sobre la naturaleza esencial del nuestro universo. Con base en este trabajo, dos fisicos publicaron en 2012 una posible solucion que da cabida a una concepcion fisica del mundo mas amplia, una que incluye universos paralelos.La presente obra consta de dos partes. La primera es un dialogo de historia-ficcion que nos lleva a reconstruir, en primera persona, una hipotesis disruptiva del conocimiento fisico actual; en terminos de don Guillermo Cabrera Infante, es un dialogo del genero de ciencia-fusion. La segunda parte la constituye un conjunto de reflexiones breves sobre aspectos variados y complementarios a la trama, que exploran desde ideas cientificas, filosoficas hasta aspectos de la cotidianidad._x000D_Sin mas, le invito a sumergirse en esta historia-ficcion. Durante el recorrido no pierda de vista el espiritu metaforico y exploratorio que acompaña a los personajes; advierta como la hipotesis se va construyendo como una alegoria; aprecie como la inspiracion puede provenir de otras formas de creatividad y expresion artistica; sientase parte del dialogo; y, al final, reflexionemos sobre algunas posibles repercusiones de las publicaciones cientificas de los cientificos reales que inspiraron a los personajes y esta obra.

Descubra o fascinante mundo da Química Experimental com Introdução à Química Experimental, o novo livro didático especialmente desenvolvido para alunos do Ensino Médio e Profissionalizante. Com uma l

Radiophobia: Navigating the Fear of Radiation is a groundbreaking, insightful, and deeply human exploration of one of the modern worlds most misunderstood fears, the fear of radiation. From the haunting legacy of nuclear disasters to the quiet anxiety surrounding medical scans and everyday exposure, this book offers a compassionate, factual, and empowering journey through the roots, realities, and recovery from radiophobia. Radiation surrounds us every day, yet for many, the word alone triggers unease, anxiety, or outright dread. Born from historical events like Chernobyl and Fukushima, radiophobia has grown into a powerful cultural and psychological phenomenon, shaping how we think about technology, energy, health, and even the future. Radiophobia: Navigating the Fear of Radiation examines not only the science behind radiation but also the deep emotional and social currents that make this fear so persistent. Written in a warm, accessible, and thought, provoking style, this book helps readers understand the why behind their fear. It breaks down complex scientific concepts into simple, relatable language, showing what radiation truly is, how it behaves, and how humans interact with it safely every day. More importantly, it delves into the psychological, historical, and cultural forces that have amplified this fear, helping readers see radiophobia not as irrational, but as a human response shaped by misinformation, trauma, and the invisible nature of radiation itself. Inside, youll discover: The history and psychology behind radiophobia and how it evolved after major nuclear incidents. The difference between real radiation risks and perceived dangers. How media and pop culture have shaped public fear and misunderstanding. The emotional and behavioral symptoms of radiophobia, and how they can be managed. Evidence, based therapies and alternative approaches, including mindfulness, hypnosis, and support groups. Practical ways to educate children and communities about radiation without fear. How misinformation spreads, and how to build critical awareness and trust in science again. Each chapter blends scientific clarity with emotional intelligence, guiding readers from confusion to understanding, from fear to empowerment. Whether youre personally affected by radiophobia, curious about the human psychology of fear, or seeking to understand how society can move beyond nuclear anxiety, this book offers both knowledge and hope. Radiophobia: Navigating the Fear of Radiation is not just a scientific guide, its a reminder of humanitys ability to adapt, learn, and find balance between caution and curiosity. It invites you to look beyond the fear, embrace the truth, and see radiation not as a shadow of danger, but as a part of life that can be understood, respected, and even harnessed for good. Perfect for readers interested in psychology, health, environmental science, fear management, or radiation awareness, this book will help you uncover the truth about radiation, and free yourself from the invisible fear that surrounds it.

Medicinal Chemistry by Knowledge Flow is a comprehensive eBook that introduces readers to the fundamental principles and applications of medicinal chemistry. Designed for students, researchers, and healthcare professionals, it covers essential topics such as drug design, pharmacokinetics, molecular interactions, drug metabolism, and therapeutic agents. With clear explanations, illustrative diagrams, and real-world examples, the book simplifies complex chemical concepts and their role in drug development. It also explores the structure-activity relationship (SAR) and the mechanisms of action of various drug classes. Ideal for academic learning and practical application, Medicinal Chemistry serves as a valuable resource for understanding the chemical basis of pharmaceuticals and their therapeutic effects.

Neste livro, os autores abordam de maneira um pouco diferente os cálculos químicos mais simples utilizados no dia a dia por profissionais diversos, bem como estudantes do Ensino Médio, de cursos técnicos e de cursos universitarios introdutorios. O destaque esta no fato de os calculos serem realizados pelo Metodo de Analise Dimensional, que ainda e pouco utilizado em nosso pais. Optou-se por esse metodo porque ele requer que, necessariamente, as diferentes grandezas sejam corretamente expressas. A correta operaço com grandezas ("Algebra de Grandezas") facilita o raciocinio e permite compreender melhor as etapas envolvidas em cada tipo de calculo. Alem disso, e na medida do possivel, so seguidas recomendaçes atualizadas da Unio Internacional de Quimica Pura e Aplicada (IUPAC), da Organizaço Internacional para Padronizaço (ISO) e do Sistema Internacional de Unidades (SI). Nesta 5 a ediço, o texto foi totalmente revisto para incorporar as recentes modificaçes do SI, inclusive na definiço do mol, a unidade de "quantidade de materia". Alem disso, adotou-se um novo modo de apresentaço desta grandeza, para deixar claro que ela e somente um artificio simplificador para se trabalhar com os numeros extremamente grandes de entidades (atomos ou moleculas) caracteristicos das amostras de substancias.Esta verso corrigida incorpora atualizaçes do autor realizadas neste ano de 2025

A importância do carvão mineral na matriz energética mundial e seus impactos ambientais têm sido tema de debate ao longo dos anos, sobretudo em um momento em que soluções mais sustentáveis estão send

O livro traz conceitos sobre a síntese, a estrutura e a caracterização dos nanocompósitos poliméricos reforçados, sobretudo, com nanotubos de carbono, grafeno e nanocristais de celulose. Discute as t

The MissionThis book highlights the continued relevance of high solid binders in meeting regulatory, environmental, and performance challenges in coatings development. Building on the first edition, it now includes updated content on modern chemistries such as silanes, polyurea, ketimines, and Michael additions, as well as new processes for low-molecular-weight acrylics. High solid resins remain a robust and flexible technologyoffering low VOC emissions, broad formulation latitude, and increasing compatibility with renewable raw materials.The AudienceA practical reference for advanced formulators, binder chemists, and lab professionals in the coatings industry. Whether you are developing new systems or optimizing existing ones, this book provides concise, hands-on knowledge of high solid technologies, from raw materials to application.The ValueA compact yet comprehensive guide to high solid systemscovering binder types, formulation strategies, and process innovations. This updated edition bridges science and application, offering clear explanations and practical insights for daily lab work and long-term development.