eBooks de Divulgación científica, página 6 de 122

Synthesis and Applications of Semiconductor Nanostructures consists of 15 chapters that focus on synthesis, characterization and multifaceted potential applications of semiconductor nanostructures, metal organic frameworks (MOFs) and nanostructure impregnated metal-organic frameworks (MOFs). Special materials included in the volume include doped glasses, functionalized carbon nanotubes, doped graphene and graphene nanoribbons. The contributions highlight numerous bottom-up and top-down techniques for the synthesis of semiconductor nanostructures. Several industrial processes such as hydrogen production, wastewater treatment, carbon dioxide reduction, pollution control and oxidation of alcohols have been demonstrated in the context of semiconductor nanomaterial applications. The volume also has chapters dedicated to updates on the biomedical applications of these nanomaterials. This volume is a timely resource for postgraduate students, academicians, researchers and technocrats, who are involved in R&D activities with semiconductor nanomaterials and metal organic frameworks.

This reference is a timely compilation of studies of genome size and genetic stability of regenerated plants. It presents 13 book chapters that cover recent advancements in CRISPR/Cas-based genome editing, the use of molecular markers to analyze somaclonal variation in tissue culture, and genetic stability assessment in various plant species, including medicinally valuable plants like Valeriana and Coffea. The book also highlights the role of flow cytometry in investigating polyploidy and provides valuable insights into genetic fidelity assessment of micropropagated woody plants and orchids.The contributors have shed light on the intra-specific and inter-specific genome and chromosome number variation with reference to gene duplication and DNA sequence loss. Molecular techniques for detecting ploidy levels and genetic homogeneity in regenerated plantlets are also discussed. Additional highlights of the book include brief guidelines for experimental protocols for flow cytometry and molecular markers, coverage of a wide range of plants, and supporting references. This is an excellent reference for biologists, geneticists, and plant scientists exploring genetic homogeneity and genome size variation in diverse plant groups.

Fundamentals of Nuclear Physics gives elementary understanding of nuclear and particle physics. The textbook offers an overview of the subject, providing students with a basic understanding about 1) the atomic structure and the nucleus, 2) equipment such as particle detectors, particle accelerators, and nuclear reactors, 3) radioactivity, and 4) elementary particles. Each chapter provides fundamental theoretical and experimental knowledge required for students to strengthen their concepts. Other key features of the book include: - Structured chapters designed for easy reading and stimulating interest for learners - Sophisticated figures - Thoroughly solved equations - Bibliographic references for further reading - Updated information about different types of nuclear reactors - Information about nuclear astrophysics Fundamentals of Nuclear Physics is suitable for introductory undergraduate courses in nuclear physics as well as more innovative courses geared towards nuclear engineering.

The queen honey bee is known to mate with multiple drones, and can produce over a million offspring in its lifetime. Its presence is vital to the growth and survival of a beehive. This reference book is a detailed guide to queen honey bees. The book starts by providing deep insights into the fascinating biologyof the queen honey bees, their morphometric features, developmental synchronicity, genetics, hormones, pheromones, colonial organization and swarming. Further, the book describes artificial queen rearing techniques that facilitate healthy bee colony growth and increase apiculture productivity. The book equips readers with all the knowledge they need to know about queen bee development, their role in the colony and improving the health of their colony. Key Features- 14 reader-friendly chapters that comprehensively present information about queen honey bees- Comprehensive coverage about queen bee biology, including their physical morphology, genetics, proteomics, development and behavior (including worker and drone interactions)- Information about the role of queen bees in colonial organization and life-cycle events- Practical information that helps to improve bee colony health for research and apiculture (disease mechanisms and control, artificial breeding) The book is an essential primary reference on queen honey bees for biology and entomology students, academicians and researchers at all educational levels. Apiculturists, bee keeping enthusiasts, and general readers interested in honey bees can also benefit from the breadth of information presented.

Steroids are an important class of biomolecules with diverse roles and functions. Besides being important as structural and signaling molecules, these molecules hold promise against numerous disorders, including cardiovascular conditions, cancer, inflammation, and autoimmune disorders. Many investigations have demonstrated that steroidal frameworks may provide lipid solubility, receptor selectivity, or membrane binding properties to non-steroidal pharmacophores. However, the therapeutic use of steroids can be dangerous when theyre used incorrectly. Additionally, misconceptions about steroids among athletes or recreational users can lead to steroid abuse and poor health outcomes.Steroids and their MedicinalPotential discusses the classification, distribution, biosynthesis, chemical synthesis, and semi-synthesis of different steroids. The medicinal potential of each class is exhaustively discussed in different chapters. The latest advances and developments in steroid-based drug discovery are also discussed thoroughly. The book aims to address general questions and concerns about steroids, providing readers with a useful resource on the subject. Key Features-Provides comprehensive coverage on all aspects of steroids including steroid chemistry, biochemistry, medicinal potential, drug discovery, and advances in target-binding interactions of steroid-based drugs-Includes chapters dedicated to anabolic steroids and their abuse -Designed as an accessible source of information for understanding steroidal drugs with structured chapters-Includes references for advanced readers

Recent Advances in Analytical Techniques is a series of updates in techniques used in chemical analysis. Each volume presents a selection of chapters that explain different analytical techniques and their use in applied research. Readers will find updated information about developments in analytical methods such as chromatography, electrochemistry, optical sensor arrays for pharmaceutical and biomedical analysis. The sixth volume of the series features five reviews which demonstrate chemical analysis techniques of different materials. - Analytical Techniques for Analysis of Metals and Minerals in Water - Lipidomics Techniques and their Application for Food Nutrition and Health - Recent Advances in the Analysis of Herbicides and their Transformation Products in Environmental Samples - Nanoporous Anodic Aluminum Oxide: An Overview on its Fabrication and Potential Applications - PIXE/PIGE Measurements of Archaeological Glass, its Conceptualization and Interpretation: A Case Study

Recent Trends and the Future of Antimicrobial Agents provides a significantly expanded overview of the topic with updated research in a broader context on the development of alternative approaches against microbial infections. This part primarily describes the use of probiotics, chemically synthesized compounds and nanomaterials as antimicrobial agents. The first chapter describes the potential of probiotics for the restoration of gut microbiomes. Amongst various antimicrobial agents, the use of antibodies has recently been investigated as a potential remedy. A chapter on antibody-based therapy as an alternative to antibiotics has been included. Chemical synthesis has eased the development of target-based prospective drug molecules against microorganisms. Chemically synthesized cationic amphiphiles and amphiphilic nanocarriers as antimicrobial agents have been discussed with sufficient detail in two different chapters. Research and progress in Schiff Base-Metal Complexes and Metal-Organic Frameworks for their antimicrobial applications have also been described in two separate chapters. Independent chapters discussing the design, synthesis and antimicrobial applications of biogenic metal or metalloid nanoparticles, bactericidal QDs and MoS2-based antibacterial nanocomposites have fulfilled the aim of incorporating cutting-edge research in the areas of alternative antimicrobials. Also, a new-age approach to combat microbes, antimicrobial photodynamic therapy (aPDT), is discussed in the final chapter of the edited volume. This part intends to provide the readers with an updated and broad view of research and development in alternative remedial approaches against microbial infections. The contents cater to the information needs of professionals and learners in academia, industry and health services who aim to learn the most significant experimental and practical approaches towards finding alternatives to existing antimicrobial therapies.

Natural products have dominated our lives since ancient times. Today, they are an inexhaustible source of new medications for disease treatment. The practice of evaluating bioactive compounds extracted from natural sources has also advanced significantly, prompting a need to understand current methods to identify and evaluate them. This book covers basic scientific aspects of preclinical research on natural products for specific conditions and diseases. These include aging, gynecological disorders, inflammatory disorders, renal disorders and cardiovascular disorders. Each of the 10 book chapters give a structured overview on preclinical methods on the etiology of diseases, natural products as the materials for the bioassays, extract types, concentration of the extracts/compounds for in vitro and in vivo assays, preparation of the test materials, application of the test materials, step-by-step methods and related calculations. The book is intended as a quick reference for natural product researchers, pharmacists and postgraduate students in pharmacognosy. Medical doctors working in preclinical research on natural products will also benefit from the information provided.

Microbes as Agents of Change for Sustainable Development explores the pivotal role of microbes and microbiomes in restoring degraded ecosystems and advancing sustainable practices. This comprehensive resource bridges cutting-edge research and practical solutions, emphasizing microbial applications in ecosystem restoration, renewable energy, waste management, agriculture, and climate change mitigation.The book, which spans 22 chapters, provides insights into topics like nutrient cycling, bioremediation, biofertilizers, and microbial genomics. It also highlights innovative approaches, such as microbial fuel cells, pollution monitoring with biosensors, and the role of microbes in GHG emission mitigation. Key Features:- Explores the UN Decade on Ecosystem Restoration and the socio-economic benefits of microbes.- Discusses microbial roles in polluted ecosystem restoration and renewable energy production.- Highlights microbes contribution to sustainable agriculture, waste management, and climate action. Readership:Ideal for researchers, students, environmentalists, and professionals in sustainability and ecosystem restoration.

Frontiers in Computational Chemistry (Volume 7) offers a comprehensive overview of the latest advances in molecular modeling techniques for drug discovery and development. This book focuses on key computational approaches such as rational drug design, adsorption studies, quantum mechanical calculations, and molecular interactions in drug development. It provides insights into lead generation, optimization, and the creation of novel chemical entities targeting various biological mechanisms, including inflammation. The chapters explore modern computational tools and their applications, particularly in lowand middle-income countries (LMICs). The book is essential for researchers, academics, and professionals in computational chemistry, molecular modeling, and pharmaceutical sciences. Readership: Students and researchers.

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 2 includes reviews on destructive microbes like Macrophomina Phaseolina, ecofriendly microbes like Beauveria Bassiana, the identification of fungi in the rhizosphere, the industrial application of Trichoderma, and other topics. The text is easy to understand for readers of all levels, with references provided for the benefit of advanced readers.

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

This book is a comprehensive review of secondary metabolite production from plant tissue culture. The editors have compiled 12 meticulously organized chapters that provide the relevant theoretical and practical frameworks in this subject using empirical research findings. The goal of the book is to explain the rationale behind in vitro production of secondary metabolites from some important medicinal plants. Biotechnological strategies like metabolic engineering and the biosynthesis, transport and modulation of important secondary metabolites are explained along with research studies on specific plants. In addition to the benefits of secondary metabolites, the book also aims to highlight the commercial value of medicinal plants for pharmaceutical and healthcare ventures. Topics covered in this part include: 1. In vitro propagation and tissue culture for several plants including Withania somnifera (L.) Dunal, Aloe vera, Oroxylum indicum (L) Kurz, Ocimum basilicum L, Rhubarb, Tea, and many others (including plants in Northern India). 2. Genetic Improvement of Pelargonium 3. Bioactive Components in Senna alata L. Roxb 4. Plant tissue culture techniques The book caters to a wide readership. It primarily prepares graduate students, researchers, biotechnologists, giving them a grasp of the key methodologies in the secondary metabolite production. It is a secondary reference for support executives, industry professionals, and policymakers at corporate and government levels to understand the importance of plant tissue culture and maximizing its impact in the herbal industry. Readership Graduate students and researchers in plant biotechnology courses; industry professionals and policymakers in the herbal industry.

This volume presents information about protocols for micropropagation of more than 40 species of medicinal plants. The contents combine knowledge about the scientific principles of micropropagation with state of the art updates in tissue culture techniques presented by plant scientists. The readers will learn about techniques required to grow plants in challenging conditions that aim to reduce the impacts of injudicious harvesting, deforestation, climate change, pollution, urbanization and other factors that limit the ability to meet current demand. General topics such as biotization and pharmaceutical investigation are also included to guide readers about the significance of these plants in research and development for new medicines. The book provides protocols for micropropagation of important medicinal plants like Rauvolfia serpentina, Catharanthus roseus, Withania somnifera, Tylophora indica, Bacopa monnieri, Aloe vera, Phyllanthus amarus, Allium sativum, Moringa oleifera, Operculina turpethum, Glycyrrhiza glabra, Pterocarpus marsupium, Vetiver grass, Ruta graveolens, Tinospora cordifolia, Kaempferia, Hedychium, Decalepis hamiltonii, Saraca asoca, Wrightia tinctoria, Wrightia arborea, Artemisia absinthium, Aegle marmelos, Atropa acuminata, Atropa belladonna, Alpinia species, Hedychium species, and Cissus species. This book is a handy reference for medicinal chemists, horticulturists and pharmacists who want to learn about the growth and conservation of important medicinal herbs and plants. Readership Medicinal chemists, horticulturists and pharmacists."

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 book 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 neurology and allied disciplines. The twelfth volume of this series features these reviews: Chapter 1: Recent Drugs Tested in Clinical Trials for Alzheimers and Parkinsons Diseases Treatment: Current Approaches in Tracking New Drugs Chapter 2: Neurobiology of Placebo: Interpreting Its Evolutionary Origin, Meaning, Mechanisms, Monitoring, and Implications in Therapeutics Chapter 3: Role of Gut Microbiota in Neuroinflammation and Neurological Disorders Chapter 4: The Role of Age in Pediatric Tumors of the Central Nervous System Chapter 5: Drug Repurposing in CNS and Clinical Trials: Recent Achievements and Perspectives Focusing on Epilepsy and Related Comorbidities Chapter 6: Progress on the Development of Oxime Derivatives as a Potential Antidote for Organophosphorus Poisoning Readership Pharmaceutical scientists, clinical researchers, medical consultants and allied healthcare professionals interested in neuropharmacology and neurology

Molecular and Physiological Insights into Plant Stress Tolerance and Applications in Agriculture Part 2 is an edited volume that presents research on plant stress responses at both molecular and physiological levels. This volume builds on the previous volume to provide additional knowledge in studies on the subject. Key Features - Explains aspects of plant genetics central to research such as the role of cytosine methylation and demethylation in plant stress responses, and the importance of epigenetic genetics in regulating plant stress responses. - Explores how Late Embryogenesis Abundant proteins affect plant cellular stress tolerance with an emphasis on their molecular mechanisms and potential implications. - Focuses on beneficial microorganisms including rhizobacteria, endophytes, and mycorrhizal fungi, which are expected to be alternative fertilizers with the advantages of being cost-effective, toxin-free, and eco-friendly. - Highlights the potential use of endophytic bacteria for protecting crops against pathogens - Presents an in-depth analysis of the molecular level to understand the impact of ATP-binding cassette transporters on plant defense mechanisms with a discussion of the potential anti-pathogenic agents based on terpenes and terpenoids. The content of the book is aimed at addressing UN SDG goals 2, 12, and 15 to achieve zero hunger and responsible consumption and production, and to sustainable use of terrestrial ecosystems, respectively. This comprehensive resource is suitable for researchers, students, teachers, agriculturists, and readers in plant science, and allied disciplines. Readership: Researchers, students, teachers, agriculturists, and readers in plant science, and allied disciplines."

Designing and developing new drugs is an expensive and time-consuming process, and there is a need to discover new tools or approaches that can optimize this process. Applied Computer-Aided Drug Design: Models and Methods compiles information about the main advances in computational tools for discovering new drugs in a simple and accessible language for academic students to early career researchers. The book aims to help readers understand how to discover molecules with therapeutic potential by bringing essential information about the subject into one volume. Key Features · Presents the concepts and evolution of classical techniques, up to the use of modern methods based on computational chemistry in accessible format. · Gives a primer on structure- and ligand-based drug design and their predictive capacity to discover new drugs. · Explains theoretical fundamentals and applications of computer-aided drug design. · Focuses on a range of applications of the computations tools, such as molecular docking; molecular dynamics simulations; homology modeling, pharmacophore modeling, quantitative structure-activity relationships (QSAR), density functional theory (DFT), fragment-based drug design (FBDD), and free energy perturbation (FEP). · Includes scientific reference for advanced readers Readership Students, teachers and early career researchers.

This book presents information about the application of various flexible AC transmission system devices to wind energy conversion systems. Devices such as unified power flow controllers, superconducting magnetic energy storage and static synchronous compensators are covered in this book. Chapters detail features of the topology and basic control systems of each device. Additionally, case studies are presented where necessary to demonstrate practical applications.This book is a reference for students and technicians studying wind power and AC transmission systems in advanced engineering courses.

Although a lot is known about the influence of Polycyclic Aromatic Hydrocarbons (PAHs) on the marine environment, there are still many unanswered questions. Petrogenic Polycyclic Aromatic Hydrocarbons in the Aquatic Environment is a monograph that sums up basic knowledge about this topic while highlighting current research practices useful in studying the aquatic environment. It starts with an introduction to effect of PAH in the marine environment. It then proceeds to provide information on techniques to monitor PAH levels and investigate the affected environment in order to control the subsequent negative effects. Chapters also detail the carcinogenic and endocrine effects of PAHs on fish as well as the degradation of PAHs by microorganisms. This monograph is a useful reference for environmental science students and professionals learning about the role of PAH in the marine environment.

Unbridled urbanization and development of natural land resources has led to the degradation of our surrounding environment. The air that we breathe, the water we drink and the food we eat is at risk of being contaminated with a plethora of chemical pollutants, some of them being potentially carcinogenic. This presents a challenge to human health. This book attempts to address this challenge in two parts which represent two different approaches. The first part of the book summarizes the alarming effects of environmental contaminants. Various studies depicting the direct relationship of environmental contaminants with cancer incidence have been referenced. Scientific studies have established an inverse relation between cancer and ingestion of dietary phytoconstituents (phytochemicals) in the form of fruits, vegetables and botanical herbs. Plant products as dietary supplements can suppress contaminant toxicity by regulating the resulting reactive species and also by assisting their bodily excretion through Phase 1 and Phase 2 enzyme metabolism. The second part of the book, shifts focus to phytoconstituents which, if included in diet, can prevent the harmful effects of pollutants. The text references numerous studies showing the anti-mutagenic, anti-genotoxic and anti-carcinogenic potential of many plant products. The combination of information about contemporary issues of carcinogenic contaminants in the environment coupled with the references to relevant studies in this handbook will enlighten readers studying courses in environmental chemistry, toxicology, botany, and ecology about environmental toxins and help them understand specific dietary measures known to reduce the toxic impact. Researchers in the field of nutrition can also benefit from the information provided.