eBooks de Historia de la ciencia, página 12 de 61

A Sabedoria do Jovem Psicólogo é uma obra que mergulha nas experiências e aprendizados de um jovem profissional da psicologia, apresentando uma narrativa envolvente e cheia de reflexões profundas. Ap

Préambule Oui l Homme a évolué depuis un certain nombre d années, mais a t il évolué dans la bonne direction, avec bon sens et charisme, il y a de quoi se poser la question aujourdhui. Il suffit déc

Die Physik beschreibt die Grundkrafte mit vier Wechselwirkungen, deren Ursache so genannte Bosonen sein sollen. Diese virtuellen Austausch- oder Kraftteilchen sollen sich zwischen Materieteilchen und Feldern hin und her bewegen und dabei Krafte austauschen. Die vorliegende Arbeit bezweifelt diese Vorstellung und stellt eine andere Theorie auf. Danach beruhen die fundamentalen Krafte auf dem Spin von Korpern und Systemen. Die Spin-Eigenschaften, Spin up und Spin down, von schnell rotierenden Korpern und Systemen bewirken, je nach Drehrichtung, Anziehung und Abstoung

The themes running through the book are friends and friendships. It is not an academic study of friendship. It is about the relationships with some of the people the author has encountered during his life. Readers will be able to define for themselves whom they regard as good, best, close etc. friends. This book should act as a catalyst for them to arrive at these definitions. The book shows how the class ceiling was broken by his liberal thinking parents, university education and marriage. He made deep interclass friendships. He was brought up with a live-in nanny, housekeeper, gardener etc. His mother was brought up old money and upper class in Germany. Several of his friends are professors and the human sides of these and those who taught him are demonstrated.His friendship and love of Frank, his brother, a merchant navy radio officer, resulted in his love of the sea and cruising with his parents and friends. During the pandemic lockdowns of 2020/21, his garden became a friend. His relationship with the garden was a major factor in preventing loneliness and depression. Social therapeutic gardens.A significant involvement with science in his early life supplied him with an enquiring mind and involved deep working relationships with fellow scientists. Some of the scientific work undertaken jointly with his PhD supervisor, W R Keatinge, as described. Was he a friend?Since his wife died in 2015, social media and electronic means of communicating have kept him in close touch with friends and others. The evolution and some history of these modes of communication used by the author over 50 years and are described. He was actively in politics in the earl 1980s. Political work creates friendships and camaraderie amongst campaigners.

Uber das Klima und seine Veranderung wird viel gestritten. Die einen sehen uns untergehen, andere raten zu mehr Gelassenheit. Tatsachlich ist die Entwicklung des Klimas unserer Erde eine komplexe Sache. Viele Faktoren und lange Zeitraume bestimmen die Entwicklung von Temperaturen, Niederschlagen und Klimazonen. Autor Helmut Schlafer hat auf der Suche nach einer Antwort zahlreiche wissenschaftliche Parameter zusammengetragen von Eiszeiten uber Treibhausgase und Aerosole bis zu den groen Stromungen in den Meeren und der Atmosphare sowie dem Einfluss unserer Sonne aufs Klima. So ist die Klimafibel entstanden. Sie soll anregen, sich offen und vorbehaltlos auseinanderzusetzen mit diesem komplexen Thema. Moglicherweise steht am Ende, dass wir doch nicht untergehen und es sogar Hoffnung gibt.

Un classico della letteratura psichedelica italiana, pubblicato agli inizi degli anni 90 e ristampato innumerevoli volte. Scritto in prima persona con lo pseudonimo di Silvio Pagani, narra il percorso che ha portato allindividuazione in Europa settentrionale e poi in Italia di un fungo con proprieta psicoattive, lo Psilocybe semilanceata, in seguito diventato il funghetto magico per eccellenza. Dallarco alpino fino allAppennino meridionale, Pagani ha mappato la sua presenza, viaggiando in moto, con una tenda attrezzata a mini-laboratorio di campo.

Attraverso le pagine di questo libro, si intreccia la rigorosa precisione della scienza con le profonde riflessioni sullessenza umana, sulla natura dellevoluzione, e sullimpatto sociale della ricerca scientifica.Con una prosa accessibile e coinvolgente, lautore condivide non solo la sua profonda conoscenza scientifica ma anche le sue intime esperienze di vita, invitando i lettori a riflettere sulle grandi domande che da sempre accompagnano lesistenza umana.Questopera rappresenta un ponte tra due mondi, spesso visti come distanti, dimostrando come la scienza possa arricchire la nostra comprensione del mondo e di noi stessi.

This volume is a compilation of reviews on the industrial usage of soil microorganisms. The contents include 16 brief reviews on different soil microbe assisted industrial processes. Readers will be updated about recent applications of soil bacteria, fungi and algae in sectors such as agriculture, biotechnology, environmental management. The reviews also cover special topics like sustainable agriculture, biodiversity, ecology, and intellectual property rights of patented strains, giving a broad perspective on industrial applications of soil microbes. Volume 3 emphasizes various soil microorganisms including cyanobacteria and mycorrhiza. The 16 chapters cover the ecological significance of mycorrhiza to and their role in sustainable agriculture, microbial interactions with nematodes, microbes as biocontrol agents, and the use of endophytes in agriculture, Chapters also shed light on industrial aspects and microbial biotransformation, providing a comprehensive view of sustainable agricultural practices. Special topics such as the microbial carotenoids are also included. Readership General readers, microbiology and biotechnology enthusiasts, science students and industrial trainees

Advances in Organic Synthesis is a book series devoted to the latest advances in synthetic approaches towards challenging structures. It presents comprehensive articles written by eminent authorities on different synthetic approaches to selected target molecules and new methods developed to achieve specific synthetic transformations. Contributions are written by eminent scientists and each volume is edited by an authority in the field. Advances in Organic Synthesis is essential for all organic chemists in the academia and industry who wish to keep abreast of rapid and important developments in the field.

Mucins are glycoproteins that are expressed in cells of different types and fulfill multiple functions that determine participation of these proteins in such processes as signal transduction, regulation of gene expression, cell proliferation, embryogenesis, cell differentiation, immunity, apoptosis and cancer development. This E-book series on mucins presents critical reviews on modern data concerning structures and functions of mucins, their roles in cell physiology and pathology as well as molecular aspects of therapy of mucin-associated diseases. Mucins are represented by two types of molecules: secreted mucins and membrane-bound (receptor) mucins. This e-book series represents a unique attempt to describe the molecular nature of mucin multifunctionality in separate volumes. Chapters in each volume demonstrate the central role of mucins as connectors and regulators of different signaling pathways and their participation in various physiological and pathological processes including carcinogenesis. Clinical aspects of mucins, such as their role as diagnostic markers as well as possible applications in mucin-based immuno- and gene-therapies are also discussed in the corresponding volumes. This is the first volume of the series. This volume introduces readers to the general properties of mucins, followed by chapters on specific variants of gel-forming and soluble mucins. The volume concludes with information on the functions of secreted mucins.

Os desafios das forças de segurança no Brasil e na América Latina exigem constantemente a busca por tecnologias avançadas de combate ao crime, tornando o uso eficaz de equipamentos de baixa luminosidade uma necessidade vital. Inicialmente subutilizados, esses equipamentos foram alvo de estudo e aprimoramento, resultando em uma compreenso mais profunda de seu potencial e aplicaço nas operaçes taticas. A obra Combate em Baixa Luminosidade representa o fruto desse esforço, oferecendo uma viso clara e abrangente sobre o uso de equipamentos de baixa luminosidade, desde lanternas ate sistemas de viso infravermelha avançados. Escrito de forma simples e direta, o livro aborda no apenas os aspectos tecnicos, mas tambem a importancia do treinamento adequado para maximizar o potencial dessas ferramentas. Os autores, Robson Moreira e Fabio Moreno, compartilham no apenas conhecimentos teoricos, mas tambem liçes praticas derivadas de suas experiencias operacionais. Este manual e mais do que um guia tecnico; e uma bussola que orienta os leitores atraves das complexidades das operaçes em baixa luminosidade, preparando-os para enfrentar desafios com confiança e habilidade. Que as informaçes contidas neste livro possam iluminar o caminho dos leitores e guia-los rumo ao sucesso em suas misses.

Mergulhe na fascinante investigação das teorias e evidências que explicam a origem e a diversidade das espécies ao longo do tempo. Este livro explora conceitos fundamentais como seleção natural, adap

Dieses Buch richtet sich an alle, die mit nachbarrechtlichen Problemen zu tun haben oder solche vermeiden wollen: Haus und Gartenbesitzer, Land- und Forstwirte, Gartner und Gartengestalter, aber auch z.B. Burgermeister kleinerer Gemeinden finden hier die Gesetzestexte und ausfuhrliche Erlauterungen zum Nachbarrecht fur immer wieder auftretende Streitfalle in den nicht immer unproblematischen nachbarschaftlichen Beziehungen. Das Buch hilft, diese Probleme besser zu verstehen, sie zu vermeiden und dennoch auftretende Streitfalle richtig zu bewerten.

Professionell Baume fallen zu konnen bedeutet, Verantwortung ubernehmen zu konnen fur die eigene Gesundheit und die von anderen Menschen, fur die Natur und den Wald sowie fur eine nachhaltige Versorgung mit dem Rohstoff Holz. Erlautert werden Falltechniken vom Regelbaum bis zum Witwenmacher, von der Seileinbringung bis zum Weghebeln von Aufhangerbaumen. Die Motorsage und weitere Hilfsmittel der Baumfallung sowie Arbeitsorganisation und Arbeitssicherheit werden vorgestellt. Es werden Tipps gegeben und Tricks gezeigt, zum Beispiel fur saubere Fallkerbsehnen, perfekte Schnitte und richtiges Peilen. Dieses Kompendium ist ein nutzlicher Begleiter, der in jede Werkzeugkiste passt.

Das vorliegende Buch ist die vollig umgearbeitete und wesentlich vermehrte zweite Auflage meiner gleichnamigen, 1915 in der Sammlung Vieweg (Nr. 23) erschienenen Schrift, die vergriffen ist. Die Ubernahme der neuen Auflage in die Sammlung Wissenschaft erfolgte wegen des vergroerten Umfanges; sie erscheint aber auch durch die starke Veranderung gerechtfertigt, die sie bei der Neubearbeitung erfahren hat und durch welche sie den Charakter eines neuen Buches annimmt.Die Theorie der Kontinentalverschiebungen ist in allen Teilen scharfer gefat, und ihre Prufung durch Heranziehung von Beobachtungsmaterial erheblich weiter im einzelnen durchgefuhrt, als es mir bei der ersten Auflage moglich war. Insbesondere konnten die Polverschiebungen und auch die Ursache der Kontinentalverschiebungen weit ausfuhrlicher behandelt werden; dies sind wohl die beiden Punkte, in denen die Theorie am weitesten fortgefuhrt werden konnte. Die im Vorwort der ersten Auflage als experimentum crucis bezeichneten Anderungen der transatlantischen Langenunterschiede haben sich zwar fur die zunachst in Betracht gezogene Strecke EuropaNordamerika bisher nicht bestatigen lassen, dagegen haben die endgultigen Ergebnisse der Danmark-Expedition eine um so glanzendere Bestatigung fur die Strecke EuropaGronland gebracht.

A Série Universitária foi desenvolvida pelo Senac São Paulo com o intuito de preparar profissionais para o mercado de trabalho. Os títulos abrangem diversas áreas, abordando desde conhecimentos teóri

Resumo do livro. A apresentação de Perspectiva Universo revela a visão de mundo completa com todos os fenômenos associados, embora a ciência global ainda esteja tateando no escuro.Alguns capítulos sã

The three-phase alternating current system is universally used in production, transmission and utilization of electrical energy. Knowledge of the concepts and principles underlying its operation, as well as the methods of measuring characteristic quantities, is essential baggage for the technician skilled in electrical and electronic technologies.The present volume, divided into three chapters: the three-phase system, three-phase power, and the measurement of three-phase power, enables the acquisition and deepening of the knowledge necessary to successfully tackle the courses of Electrical and Electronic Engineering of Technical Institutes, technological sector and is preparatory to university courses.The text is accompanied by many illustrations that are particularly well edited for their didactic aspects. Each concept developed is followed by one or more explanatory examples and often concise summaries.To test the knowledge acquired at the end of the chapters there will be significant problems to solve.SANDRO RONCAAfter studying Physics at the University of Padua, he dedicated himself to teaching Electrical and Electronic Technologies and Computer Science at Technical and Technological Institutes, paying attention to the didactic aspects of the subject. He has studied computer networks in depth and designed, at the request of industrial associations, courses for systems engineers and IT security workers.

Die Wurzeln des Regenbogens:Eine Versinnbildlichung dessen, worauf die Schopfung zuruckfuhrt.Mit der Absicht den Sonnenaufgang von einem Felsplateau aus zu fotografieren, kommt es infolge dessen zu Begegnungen, durch deren Auswirkungen sich beim Hobbyfotografen dessen Weltanschauung veranderte.Die kleinsten Teilchen der Materie verhalten sich gegensatzlich unseren Beobachtungen und Auffassung. Naturwissenschaft und Religion scheinen sich nicht zu widersprechen. Es stellt sich die Frage, ob Materie und Leben durch Zufall aus sich heraus entstanden seien, oder das Ganze auf bewusstem schopferischem Ursprung beruht.Da bei Tieren Eigenschaften wie Barmherzigkeit zu beobachten sind stellt sich die Frage, ob auch Tieren eine Seele zuzusprechen ist.Quantenphysiker der ersten Generation, mit denen das Wort Geist in die Wissenschaft Einzug genommen hat, kommen ebenfalls zu Wort.Ein unterhaltendes Buch mit naturwissenschaftlichem Bildungsanspruch.

Heavy Metal: Earths Minerals and the Future of Sustainable Societies brings together world-leading experts from across the globe to reimagine the future of mineral exploration and mining in a post-fossil fuel world.Minerals and metals for batteries, circuit boards, wiring and other components are essential to a digital, carbon-neutral economy. But how can we grapple with the environmental, social and geopolitical challenges caused by the extraction and use of these critical resources?Concise, accessible, and engaging, the essays in this timely collection intertwine a broad spectrum of disciplines to help us understand and reimagine our relationship with minerals. Exploring a wide range of themes, from the colonial history of mining and Indigenous resistance, to new frontiers in exploration geology, waste management and recycling, this book draws on experts from fields as diverse as geology, mining engineering, law, economics and public policy.The book also explores mineral resources through an artistic lens, with a collection of stunning images from the Canadian photographer Edward Burtynsky, and excerpts of a new musical work, the Heavy Metal Suite.This thought-provoking and ultimately hopeful book guides us towards a more responsible, ethical and sustainable use of metals and minerals. It is essential reading for anyone interested in how we supply the resources needed for a carbon-neutral economic future.