Videnskabeligt udstyr, forsøg og teknikker

This textbook presents the fundamental concepts and application of optical mineralogy in a very simple, systematic, and comprehensive way. The book is organized into 2 parts: Part I deals with the theory and techniques, and Part II provides a description of the optical properties of common minerals. The book is written in a lucid manner so that students are able to understand the realization behind the concepts in optics and the methods employed to elicit information about the interior of mineral crystals. All the subject fundamentals and related derivations are discussed in an easy and comprehensive way to make the students strong in the basics of optical mineralogy. The key features lie in the illustrations, examples, and questions at the end of each chapter to provide students with practical usage insights into optical mineralogy. The book benefits students who are taking introductory courses in optics to characterize rock minerals.

Nanotechnology has shown great potential to alleviate increasing pressure to meet food needs for our increasing human population, Novel agricultural innovations are required to enhance the health of edible crops and per unit area yield without impacting the associated environment in a negative way. Recent advancements in nanotechnology-based agricultural solutions have proven to help overcome the problems in agriculture that are associated with run-off of essential fertilizers from agricultural soils, low nutrient accumulation by crops, as well as to control insects, pests, and seasonal biotic factors, treatment of wastewater used for irrigation, plant uptake of xenobiotics (heavy metals, pesticides, industrial chemicals, drugs, and so on) that may be present in contaminated soils. Additionally, the consumption of such food crops may result in malnourishment and plant-mediated transfer of toxic substances among humans especially in underprivileged and rural populations. Agents to stimulate plant growth include various types of nanomaterials such as carbon nanotubes, metal, and metal-oxide nanoparticles. Applications of particular nutrients or elements in crop plants can be shown to aid human nourishment (either by directly inducing its uptake or indirectly through enhancing the intracellular levels of other associated elements that ultimately boost the synthesis of the desired nutrient in plants). It is also important to consider the competence and fate of nanomaterials in soil ecosystems. The entry route of nanomaterials into the environment includes both natural and anthropogenic sources. In order to achieve sustainable and safe use of nanotechnological products in agriculture, similar environmental conditions must be simulated on lab scale with the careful selection of organisms related to agriculture. Thus, emphasis should be placed on the judicial use of nano-enabled products without compromising the sustainability of the environment and human health. This comprehensive book highlights recent field research as well as contributions from academicians in the lab. This book addresses the major aspects related to nanotechnology, biofortification of crops, and human and environmental health.

This book presents novel statistics methods and reproducible software that helps to solve challenging problems in biomedicine. Specifically, it consists of a collection of 11 chapters contributed by some of the leading experts in the mathematical and statistical field which address new challenges in very disparate biomedical areas, such as genomics, cancer, circadian biology, microbiome, mental disorders, and more. The mathematical rigor is written in a user-friendly way to serve a general biomedical audience ranging from trainees or students to doctors, as well as scientific researchers, university departments, and PhD students.

This third edition expands on the previous editions by providing updated protocols and current methods that cover recent breakthroughs in Drosophila research. Chapters guide readers through FlyBase, versatile gene expression systems, analysis of microRNA function, single-cell transcriptome data and metabolism, recent applications of CRISPR for precise genome editing, transcriptional activation and cell lineage tracing, protein inhibition and tagging, optogenetic and optochemical control of tissue mechanics, AFM measurements, sample preparation for electron microscopy, live imaging of different tissues and organs, and quantitative image analysis. Written in the format of the highly successful Methods in Molecular Biology series, chapters include an introduction to their topic, lists of the necessary materials and reagents, step-by-step and readily reproducible laboratory protocols, as well as tips on troubleshooting and avoiding known pitfalls Authoritative and cutting-edge, Drosophila: Methods and Protocols, Third Edition serves as a useful and practical guide to new researchers and experts using Drosophila as a model system.Chapter 7 is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.

This book focuses on polarization microscopy, a powerful optical tool used to study anisotropic properties in biomolecules, and its enormous potential to improve diagnostic tools for various biomedical research. The interaction of polarized light with normal and abnormal regions of tissue reveals structural information associated with its pathological condition. Diagnosis using conventional microscopy can be time-consuming, as pathologists require an hour to freeze and stain tissue slices from suspected patients. In comparison, polarization microscopy more quickly distinguishes abnormal tissue and provides better microstructural information of samples, even in the absence of staining. This book provides a basic understanding of the properties of polarized light, a description of the polarization microscope, and a mathematical formalism of Mueller matrix polarimetry. The authors discuss various advanced linear and nonlinear optical techniques such as optical coherence tomography (OCT), reflectance and transmission spectroscopy, fluorescence, multiphoton excitation, second harmonic generation, Raman microscopy, and more. They explore the exciting potential of integrating polarimetry with these techniques for possible applications in different areas of biomedical research, as well as the associated challenges. Including the most recent developments on the topic, this book serves as a modern guide to polarization microscopy and advancements in its use in biomedical research.

This volume provides new approaches and technologies into roles of poly(A) metabolism in translation, RNA stability, and quality control of gene expression. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and key tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Deadenylation: Methods and Protocols aims to pave the way for future investigations of the complex regulatory networks that control mRNA stability and expression.

This book discusses computational methods related to biological models using mathematical tools and techniques. The book chapters concentrate on numerical and analytical techniques that provide a global solution for biological models while keeping long-term benefits in mind. The solutions are useful in closely understanding biological models, and the results will be very useful for mathematicians, engineers, doctors, scientists and researchers working on real-life biological models. This book provides significant and current knowledge of biological models related to real-life applications. The book covers both methods and applications.

This book uses real-world examples from the aquaculture industry to demonstrate how deep technology is assisting farmers and vulnerable communities. Works conducted by Poseidon-AI (a deep tech company involved in the aquaculture sector) in different countries are presented as case studies to show the positive impacts of deep tech involvement in the aquaculture sector. Primary industries, such as fisheries and aquaculture, rely heavily on labor. Furthermore, the manual practices of these farming methods increase material waste and reduce yields, resulting in higher costs and lower revenues. Poikilotherms make up the majority of aquatic animals, and environmental changes have a significant impact on them. This means that, due to climate change, farming of these animals cannot continue in the same way that it has for centuries. Artificial intelligence, machine learning, image processing, sensing, and automation are approaches that can assist these farms in dealing with rapid environmental changes while also assisting farmers in growing their businesses sustainably. This book is of interest to climate change scientists, entrepreneurs, investors, civil workers, and policymakers. Furthermore, the book is a great complimentary material for graduate students of fisheries, aquaculture, ecology, soil science, water management and environmental sciences. All national and international policymakers working in implementation of UNSDGs and sustainability, will find this book a useful read.

A New York Times Editors' Choice"Entertaining, phenomenally weird . . . Rat City may well be the world’s first-ever work of socio-biographical-scientific pop history. . . .a freaky romp down a peculiar passage in the history of ideas, full of oddball cameos (Aldous Huxley! Buckminster Fuller!) and some very sharp science writing."—The New York Times"Facebook, Yik Yak, Twitter, Twitch—each had a sunny, expansive phase, followed by a descent into flaming, catfishing, and troll wars. To the extent that Calhoun’s rats have any sociological relevance, it would seem to be in the mirror world of the Web. What, after all, could be a better description of X these days than a “behavioral sink”?" —The New YorkerBehind the internet's viral "Universe 25" experiment and Robert C. O'Brien's iconic novel, Mrs. Frisby and the Secret of NIMH, was one scientist who set out to change the way we view our fellow man — using rats . . .After the Civil War and throughout the twentieth century, cities in northern American states absorbed a huge increase in populations, particularly of immigrants and African Americans from southern states. City governments responded by creating new regulations that were often segregationist — corralling black Americans, for example, into small, increasingly overcrowded neighborhoods, or into high-rise “projects.”The situation intensified after World War II, as rising crime and racial unrest swept the nation, and blame fell on the crowded conditions of city life. The hardest-hit populations were left marginalized and voiceless. Enter John B. Calhoun, an ecologist employed by the National Institute of Mental Health to study the effects of overcrowding on rats. From 1947 to 1977, Calhoun built a series of sprawling habitats in which a rat’s every need was met—except space. The results were cataclysmic. Did a similar fate await our own teeming cities?Rat City is the first book to tell the story of Calhoun’s experiments, and their extraordinary influence — an enthralling record of urban design and dystopian science. Meticulously researched, it follows Calhoun’s struggle to solve the problem of crowding before America’s cities drain into the behavioral sink. And as the “war on rats” continues around the world, and our post-pandemic society reevaluates the necessity of urban living, the riveting story of Rat City is more relevant than ever.

This book is the first attempt for in-depth compilation of current knowledge on cisgenic crops and their  potential prospects as a sustainable substitute for the controversial genetically modified crops. Innovative methodologies for the development of cisgenic crops for disease resistance, improved nutritional contents, suitability for organic farming, survival under climate change, and their role in conservation of plant genetic resources have been highlighted. Combined with molecular markers and genome editing, an advanced approach for crop improvement is reported. The book has 14 chapters authored by globally leading experts on the subject. This book is useful to the students, teachers, researchers and policy planners working across the disciplines of classical plant breeding up to the recent genetically modified and genome edited crops.

Este libro esta basado en la recopilación de información de diferentes artículos o publicaciones que se han llevado a cabo de las diferentes enfermedades de transmisión sexual que nos rodean.

This book presents recent developments in ore microscopy to support the work of engineers and scientists actively engaged in the field of mineral raw materials (processing plant engineers in mines, process mineralogists and chemists, exploration geologists, etc.) or in ore deposit research. Textural analysis must be rigorous, and simple to be practical. With this aim, the author proposes a specific and user-friendly systematic for textural analysis. A high-performance tool to acquire, quantify, and process the data applied for automated ore characterization is key to predict ore behavior, a fundamental aim of geometallurgy. The recently developed AMCO System (Automated Microscopic Characterization of Ores) provides the tool, first prototype available using computer vision coupled with reflected light microscopy. This innovation is introduced in the text and discussed through case studies of actual mining problems.This second volume of the book "A Practical Guide to Ore Microscopy" includes references, indexes, and other relevant information, plus Annexes 1 to 5. The latter include ore and gangue mineral indexes and mineral abbreviations (Annex 1), a brief compendium of common mineral associations in the main ore deposit types (Annex 2), an introduction to the procedures and techniques used to prepare polished sections (Annex 3), and the various tables used to identify common ores by direct microscopic observation (Annexes 4 and 5).

This detailed volume explores a variety of cutting-edge techniques used to interrogate spatial genome organization. Beginning with a section covering the vital chromosome conformation capture (3C) technique, this collection continues with chapters on targeted Hi-C approaches, sequencing-based approaches to assess nuclear environment, as well as single-cell technologies to better characterize the heterogeneity and dynamics of nuclear architectures and approaches to visualize them by microscopy. Finally, in order to be able to ask functional questions about the role of spatial chromatin organization in genomic control, the last section provides methods for acute manipulations of chromatin architecture. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Spatial Genome Organization: Methods and Protocols is an ideal resource for researchers searching for the best techniques to address their own specific research questions.

A Sri Yantra designed with accuracy and precision is precious, beautiful and highly benevolent. To begin drawing, use a 2D drafting engineering software e.g. AutoCAD, BricsCAD, nanoCAD, LibreCAD etc.Set the Dimensions precision to four decimal places, e.g., 0.0000With each Line, Angle, or Circle drawn, take the Dimension and see if it matches exactly.Even a slight error shall make the Sri Yantra lose its Beauty and Preciousness.1 Square ABCD, side 200.2 Bisect Square at J,make right angle Triangle JCD with hypotenuse JC = 223.6068, Angle CJD = 63.4349°3 Draw Black Circle with center at J, radius = hypotenuse JC = 223.60684 Extend Square ABCD to a Rectangle ABEF, where longer side AF = BE = 323.60685 Draw Green Circle with center at A, radius = 323.60686 Extend side of Square DC to touch Green Circle at upper point g. The length Dg = 254.4039For exactness,Extend side of Square CD to touch Green Circle at lower point. This length = 254.4039These both lengths must be Equal. This is just to check if we are going right so far.If both these lengths are Equal, we have found the Apex g for our Triangle T1u.7 Now join A to g, and we get the Side Ag of our Golden Ratio Triangle T1u.Note that Side Ag = radius of Green Circle = 323.60688 Copy and Mirror the Side Ag to get the Side gi of Golden Ratio Triangle Triangle.9 Join points A to i to get Base Ai of Golden Ratio Triangle T1uGolden Ratio Triangle T1u Largest Upwards Apex Triangle is starting Point for Sri Yantra.Dimensions for Golden Ratio Triangle T1u = Agi must be preciselyBaseline length = 400Isosceles Side Length each = 323.6068Isosceles Angle each = 51.82729°-------------Contains Full Color Plates

This is the first book to explore the science underlying the Jerusalem artichoke, which is also known as Helianthus tuberosus L. and it is attracting increasing interest among food scientists and professionals worldwide. Due to a wide perspective for the production of inulin due to its high economic and ecological importance, the development of technologies for isolating and processing tuberous sunflower raw materials using environmentally friendly technologies (green chemistry and white biotechnology) and the global production of inulin shows an increasing tendency. Here we focus on the latest technological achievements related to the use of inulin in the food processing. In this book, readers will find full explanation of the conceptual aspects and the latest research results on a wide range of topics, including the relevant characteristics and applications from various fields. Written by leading scientists in the field, the book will be a valuable resource for students and researchers in the fields of food chemistry, nutritional science, physiology, and bioengineers, as well as for professionals in the food industry.