eBooks de Divulgación científica, página 15 de 122

This book provides readers a fundamental understanding of the science and applications of medicinal and aromatic plant materials. Chapters of this handbook covers the basics of ethnobotany, (bio)active compounds and their natural sources. Information about the cosmetic, nutritional, medicinal and industrial uses (dyes, tannins and biocides) is also presented. Readers will also learn about concepts central to quality control processes, sustainable management, wild harvesting and the economic valuation of the industrial impact of endemic plants. The volume also presents a case study of the wormwood (Artemisia absinthium L.), which is helpful in explaining the above concepts. This book is intended as a handbook for undergraduate students and teaching professionals in research and higher education institutions involved in agricultural engineering, pharmacy, forestry, natural product chemistry. Non experts interested in aromatic and medicinal plant agriculture, transformation and commercialization will also find the content informative.

Biofuels are currently used as a viable alternative energy source in several countries. Plant-Based Genetic Tools for Biofuels Production explains biotechnological techniques and concepts that are applied to increase biofuel yield from plants and algae. Chapters of the book cover a variety of topics: the basic research techniques (cell suspension, embryogenesis, protoplast fusion), plant genetics (plant DNA mutations, new plant breeding techniques, viral genetic vectors for heterologous gene expression, sub cellular proteomes), genomic resources and bioinformatics tools, plant species with bioenergy and biofuel potential, factors influencing biomass yield, advances in cultivation technologies, fermentation of different substrates for ethanol production, and microalgae biomass technologies.Readers will gain a thorough understanding of modern biofuel production.Plant-Based Genetic Tools for Biofuels Production is a suitable reference for students in biotechnology and bioinformatics programs as well as researchers interested in information about the basics of biofuel production.

Stem cell and regenerative medicine research is a hot area of research which promises to change the face of medicine as it will be practiced in the years to come. Challenges in the 21st century to combat diseases such as cancer, Alzheimer and related diseases may well be addressed employing stem cell therapies and tissue regeneration. Frontiers in Stem Cell and Regenerative Medicine Research is essential reading for researchers seeking updates in stem cell therapeutics and regenerative medicine. The fourth volume of this series features reviews on the use of stem cells through retrodifferentiation, mesodermal regeneration, hematopoiesis and mesenchymal stem cells. The volume also features a chapter on current knowledge on cell-based therapy in veterinary medicine.

Campus activities for sustainable development are an effective way of learning and implementing sustainability in surrounding communities and industry. A college campus is an ideal place to practice and test new ideas and to learn valuable lessons from the results and mistakes. Sustainability Practice and Education on University Campuses and Beyond showcases many ideas and endeavors pursued on college campuses in the form of case studies. These case studies include past, current and projected activities to green college campuses. Specific topics covered in this book include student-driven and college-driven environmental sustainability programs in undergraduate and graduate classes, issues in teaching environmental sustainability, the LEED certification of universities, issues of shrinking cities, and a comparison of sustainable military bases with college campuses. Readers will be able to clearly understand the concept of sustainable development through a textbook approach to crazy ideas presented in the book. In addition, the pedagogical challenges in sustainability education mentioned in the book address key issues arising due to the multidisciplinary nature of sustainability curricula.Sustainability Practice and Education on University Campuses and Beyond is a good resource on sustainability in environmental science courses for college students, faculty and sustainability-related researchers. Decision makers in government and industry positions looking for ideas for promoting sustainable development can also benefit from the contents of this book.

Frontiers in Clinical Drug Research Anti infectives is an eBook series that brings updated reviews to readers interested in learning about advances in the development of pharmaceutical agents for the treatment of infectious diseases. The scope of the eBook series covers a range of topics including the chemistry, pharmacology, molecular biology and biochemistry of natural and synthetic drugs employed in the treatment of infectious diseases. Reviews in this series also include research on multi drug resistance and pre-clinical / clinical findings on novel antibiotics, vaccines, antifungal agents and antitubercular agents. Frontiers in Clinical Drug Research Anti infectives is a valuable resource for pharmaceutical scientists and postgraduate students seeking updated and critically important information for developing clinical trials and devising research plans in the field of anti infective drug discovery and epidemiology.The third volume of this series features reviews that cover a variety of topics including: -Geomic mining and metabolomic techniques for developing antimcrobials-Probiotic use in complementary antiretroviral therapy-Anti-HIV pharmaceuticals-Phytochemicals used for antimicrobial purposes- Antimicrobial photodynamic therapy (APDT)

Frontiers in Clinical Drug Research - CNS and Neurological Disorders is a book series that brings updated reviews to readers interested in advances in the development of pharmaceutical agents for the treatment of central nervous system (CNS) and other nerve disorders. The scope of the eBook series covers a range of topics including the medicinal chemistry, pharmacology, molecular biology and biochemistry of contemporary molecular targets involved in neurological and CNS disorders. Reviews presented in the series are mainly focused on clinical and therapeutic aspects of novel drugs intended for these targets. Frontiers in Clinical Drug Research - CNS and Neurological Disorders is a valuable resource for pharmaceutical scientists and postgraduate students seeking updated and critical information for developing clinical trials and devising research plans in the field of neurology. The fifth volume of this series features reviews that cover the following topics:-drug treatment for spinal cord injury-action tremors-natural products for Alzheimers disease treatment-non pharmacological approaches towards pain management-biosensors for detecting neurodegenerative diseases-NMDA receptor targeting-alkaloid antidepressants

This monograph is a collection of reviews that presents results obtained from new and somewhat unconventional methods used to fight multiple drug resistance (MDR) acquired by microorganisms and tumours. Two directions are considered: (i) the modification of non-antibiotic medicines by exposure to un-coherent, or laser optical radiation to obtain photoproducts that receive bactericidal or, possibly, tumouricidal properties and (ii) the development of new vectors (micrometric droplets of solutions containing medicinal agents) to transport medicines to targets based on optical and micro spectroscopic methods. Chapters shed light on pendant droplets used for antibiotic drug delivery, the science of lasers and their interactions with fluids in pendant droplets and spectroscopic analyses of droplets used to treat MDR infections. It therefore equips researchers and medical professionals with information about tools that enable them to respond to medical emergencies in challenging environments. The intended readership for this monograph includes graduate students, medical doctors, fluid physicists, biologists, photochemists, and experts in drug delivery methods employed in extreme conditions (such as those found in outer space and hypergravity conditions) who are learning about using techniques such as laser spectroscopy, biophotonics and optofluidics/microfluidics.

The monograph is a summary of methods used to study pain receptors and the results obtained in some experiments designed to study the effect of non-opioid analgesics. The molecular mechanisms of nociceptive information control in primary sensory nociceptive neurons are described based on investigations of the membrane signaling cascade (opioid-like receptor ? Na+,K+-ATPase ? NaV1.8 channel) observed by the authors. Based on this data, the authors conclude that the modulation of NaV1.8 channels responsible for the coding of noxious signals can be carried out due to two novel targeting mechanisms. The first of these is the activation of opioid-like receptors; the second is the activation of Na+/K+-ATPase as a signal transducer. The development of a novel class of analgesics that trigger these mechanisms should lead to a successful solution to the problem of chronic pain relief.Chapters of the monograph cover the general methods used in studying nociceptive pain (including the patch-clamp method), and the mechanism behind the binding of different ligands to these receptors such gamma-pyrones, gamma-pyridines and cardiotonic steroids.This monograph is a valuable reference for neuroscientists, pharmacologists and allied researchers studying pain receptors for the development of safe and effective analgesics.

Stem cell and regenerative medicine research is a hot area of research which promises to change the face of medicine as it will be practiced in the years to come. Challenges in the 21st century to combat diseases such as cancer, Alzheimer and related diseases may well be addressed employing stem cell therapies and tissue regeneration. Frontiers in Stem Cell and Regenerative Medicine Research is essential reading for researchers seeking updates in stem cell therapeutics and regenerative medicine. The seventh volume of this series features reviews on roles of mesenchymal stem cells and biomaterials in cartilage regeneration in vivo, liver regeneration, cardiogenesis and magnetic nanoparticles for regenerative therapy.

Adulteration refers to the practice of altering food or pharmaceutical content to reduce production costs. Factors affecting this practice include market forces such as easy availability of food adulterants, bargaining power of consumers and large demand and supply gaps which incentivize such practices. Technological advancements in chemical analysis now help us to identify adulterated food and drugs more easily. Adulteration Analysis of Some Foods and Drugs is a sourcebook describing analytical methodologies for the determination of adulterants in different food items (milk, honey, juice) and drugs (dietary supplements, sildenafil and specific plant extracts). Additional chapters give guidelines for analyzing a food or drug sample. This book is suitable for researchers working in the field of analytical chemistry for the determination of adulterants. The concise and organized presentation of the contents also serves to enhance the level of knowledge of students undertaking food and drug safety / quality control training courses.

Researchers, politicians and lay persons around the world agree that renewable energy technologies will play an increasingly important role in strengthening national economies in the future. The renewable energy industry has the potential to significantly increase power capacity of several countries and subsequently create many jobs. This book examines recent advances in specific renewable energy systems. Readers will learn about theoretical and applied perspectives which are key to addressing the major issues associated with such systems. Chapters cover solar energy systems, thermal energy storage, bioenergy, hydrogen production, geothermal energy and measurement techniques for these energy systems. Students in engineering programs, and engineers working in academia and the renewable energy sector will be able to broaden their understanding of complex renewable energy projects through the comprehensive overview of both the fundamental concepts and the technical issues covered in the text.

Todays academic environment presents assessment challenges defined by an increased volume of available information coupled with increased competition among students and time constraints. Multiple choice questions (MCQs) provide examiners with an opportunity to assess academic performance on the basis of instant recollection of correct answers in a minimal amount of time. MCQs Series for Life Sciences Volume 2 is a collection of MCQs on advanced topics and offers the following benefits for readers:Includes over 950 relevant MCQs Covers two major topics: cell culture and microbiology.Simplified language and presentation of conceptsAnswers to each question are providedThis MCQ book series in life sciences is a handy reference for graduate and postgraduate students undertaking examinations or entrance tests as well as teachers or examiners involved in setting and controlling assessments in specific subjects in life sciences. The second volume augments the first volume which comprehensively covers five areas of life sciences: immunology, biochemistry, cell biology developmental biology, genetics and molecular biology.

Bioinformatics allows researchers to answer biological questions with advanced computational methods which involves the application of statistics and mathematical modeling. Structural bioinformatics enables the prediction and analysis of 3D structures of macromolecules while Computer Aided Drug Designing (CADD) assists scientists to design effective active molecules against diseases. However, the concepts in structural bioinformatics and CADD can be complex to understand for students and educated laymen. This quick guideline is intended as a basic manual for beginner students and instructors involved in bioinformatics and computational chemistry courses. Readers will learn the basics of structural bioinformatics, primary and secondary analysis and prediction, structural visualization, structural analysis and molecular docking. Therefore, the book is a useful handbook for aspiring scholars who wish to learn the basic concepts in computational analysis of biomolecules.

O livro Fundamentos de Anatomia Vegetal: Conceitos e Aplicações em uma Abordagem Didática (que em sua versão capa dura por valor similar pode ser adquirido diretamente no clube de autores) foi elabor

Le presenti note, quasi un paradigma, trattano della teoria maxwelliana dei fenomeni elettromagnetici e del suo impiego nella formalizzazione della transizione campi-reti. La presentazione delle equazioni, propria di un approccio di seconda lettura, avviene secondo il metodo logico, cioe tramite opportuni postulati di definizione. Tali riflessioni, preliminari alla successiva transizione campi-reti, hanno il carattere di un paradigma: elaborare una struttura mentale ed operativa capace di tradursi in un insieme di nozioni consolidate e pur tuttavia suscettibili di una rilettura, e dunque di un rinnovamento, continui.

Este libro describe y documenta hechos sobresalientes de la historia general de la ciencia en México a partir de 1912; en especial aquellos que ilustran mejor las tres grandes transformaciones ocurridas en ese lapso en la ciencia mexicana: primero su profesionalizacion, crecimiento y diversificacion, luego su ingreso al discurso oficial y a las decisiones oficiales y, finalmente, su matrimonio con la tecnologia. De esa forma, el autor busca dar con las principales razones historicas, sociales, economicas y politicas que explican el subdesarrollo actual de la ciencia mexicana para señalar las ideas que hay que cambiar y los obstaculos que se deben superar.

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.

Der Taschenatlas Geholzkrankheiten stellt Ihnen die haufigsten und auffalligsten Schadbilder an insgesamt 61 Geholzgattungen vor und beschreibt diese ausfuhrlich in Wort und Bild. Durch ein breit angelegtes Merkmalsspektrum haben Sie die Moglichkeit Krankheiten, Schadlingsbefall sowie abiotische Schadigungen an Ihren Geholzen sicher zu erkennen. Erganzt wird der Text durch Hinweise zur Vorbeugung und Bekampfung der jeweiligen Schadursache. Besonders aktuell ist dieses Buch auch durch die Aufnahme in der Praxis auftretender gebietsfremder Schadorganismen, von denen einige bereits die Existenz unserer heimischen Baumarten bedrohen.

Viele Lebensraume werden sowohl von Flechten als auch Moosen bewohnt. Dieses Buch ermoglicht einen Einstieg in die Kenntnis beider Gruppen und berucksichtigt dabei haufige wie auch markante Arten. In brillanten Farbfotos und ausfuhrlichen Texten werden etwa 160 Flechten- und 130 Moosarten samt ihrer Verwechslungsarten in aktualisierter Systematik vorgestellt. Zwei einfache Bestimmungsschlussel erleichtern die Zuordnung zu den Artengruppen. Die Gliederung nach eindeutigen Kriterien wie Wuchsform und Substrat sowie Icons fur den Schnellzugriff sichern die Bestimmung zusatzlich. Angaben zu interessanten Eigenschaften, Verwendungsweisen oder Namensherkunft runden das Bild ab.

The positive electric charge transported by the cosmic radiation while migrating from the interiors of galaxy clusters toward the outer intergalactic space, slowly but inevitably, uncovers a negative electric charge of the same amount inside galaxy clusters, where it is mostly retained. Electrons constitute the negative electric charge inside galaxy clusters. The negative charge and the positive one of the overflowed cosmic nuclei in the intergalactic space cannot be neutralized due to the separating, huge distances. After time intervals of a few billion years, electrostatic repulsion among galaxy clusters initiates to contrast gravity and, at longer time spans, dominates. The electrostatic repulsion among galaxy clusters, which always store negative electric charges, determines in a few billion years, a general receding motion of cosmic matter, including smaller celestial bodies dragged in by galaxy clusters. It will be proved that the general receding motion of cosmic matter occurs with increasing velocities of galaxy clusters as far as the corresponding distances from the Earth augment.