First developed in the 1880s, repeat photography remains an important and cost-effective technique for scientists and researchers working to track and study landscape change. This volume explores the technical and geographic scope of this important technique. "Repeat Photography" demonstrates the wide range of potential applications, examines new techniques for acquiring data from repeat photography, and clearly shows that repeat photography remains a valuable and cost-effective means of monitoring change in both developed and developing regions. Over 100 sets of photographs, including 32 pages of color photos, serve as examples. Recent concerns about climate change and its effects on natural landscapes, combined with ongoing concerns about land-use practices, make this state-of-the-art review a timely contribution to the literature.

In 1987, Barry Lynes wrote the classic book on Rife history called The Cancer Cure That Worked. Rife's World of Electromedicine is the sequel, published in 2009. What is the difference between the two books? The Cancer Cure That Worked was primarily a biographical account of Royal Raymond Rife's life and work, including detailed, dated records of the events which occurred, and in-depth accounts from the people involved. Rife's World of Electromedicine, on the other hand, is a bird's eye view, short summary of the same time period and events. Instead of a detailed biography, Rife's World is an expository piece that includes brief, targeted chapters addressing each aspect of Rife's era, utilizing piercing, specific, and direct quotes and excerpts from historical documents including magazine and newspaper articles, court transcripts, Rife's own statements, and the eye-witness accounts of those who were present during Rife's lifelong achievements. Written as a short story, Rife's World is affordably priced so that everyone can read about Royal Raymond Rife. The book is a perfect gift for someone who wants to find out more about Rife but doesn't have time to read a longer book. Additionally, the new book explains what 20] years of additional research and document retrieval by a dedicated grass roots group have discovered and unearthed. Some of the previously missing, key factors in the suppressed and censored cure for cancer were lost or even locked away in physicians' closets for decades in order to prevent censors from destroying overwhelming evidence. Now, this evidence is printed for the first time in Rife's World.

The functional anatomy of human somatosensory cortex is of both scientific and clinical interest. Scientifically, it provides insights in information processing in the human brain. Clinically, it helps to avoid neurological deficits by sparing essential brain regions during neurosurgical procedures adjacent to central fissure. In the present study the functional organization of the human somatosensory cortex was investigated with electrophysiological techniques using a combined approach of cortical stimulations and somatosensory evoked responses on electrocorticography, scalp-EEG, and magnetoencephalography. The spatiotemporal structure of the evoked response was studiedwith biophysical modeling techniqueswhich allowed identification of the three-dimensional intracerebral location, time activity, and interaction of the neuronal sources activated following peripheral somatosensory stimulation. Furthermore, the somatotopic organization ofhand and lip somatosensory cortex was investigated. The relative value of invasive (cortical stimulations and electrocorticography) and non-invasive (scalp-EEGand magnetoencephalography) was assessed. The combined use ofscalp-EEG and magnetoencephalography was useful to increase non-invasive localization accuracy. I want to thank several people who significantly contributed in completion of the present work. Univ. -Prof Dr. Luder Deecke, Chairman of the Neurological University Clinic, Vienna, Austria, supported me throughout my career at the Neurological University Clinic in Vienna since 1985. Dr. William W Sutherling, Associate Professor at the University of California, Los Angeles, who was my advisor during my stay from 1987-1989 at the Department ofNeurology, University of California, Los Angeles where most of the present work was done.

A complete examination of the uses of the atomic force microscope in biology and medicine

This cutting-edge text, written by a team of leading experts, is the first detailed examination of the latest, most powerful scanning probe microscope, the atomic force microscope (AFM). Using the AFM, in combination with conventional tools and techniques, readers gain a profound understanding of the cell, subcellular organelles, and biomolecular structure and function.
The text begins with three chapters describing the molecular machinery and mechanism of cell secretion and membrane fusion in cells, using approaches that combine AFM, electron microscopy, X-ray diffraction, photon correlation spectroscopy, molecular biology, biochemistry, and electrophysiology. The discovery of a new cellular structure the "porosome" or fusion pore--the cells secretory machinery, the molecular mechanism of membrane fusion in cells, and the expulsion of intravesicular contents during cell secretion are outlined in the first three chapters. The book also covers:
* Identification of the "porosome" in the growth hormone secreting cell of the pituitary gland
* Probing the structural and physical properties of microbial cell surfaces
* Scanning probe microscopic characterization of the higher plant cell wall and its components
* Case studies of nano drug delivery systems using engineered dendrimers
* AFM techniques for studying living cells
* Investigating the intermolecular forces of leukocyte adhesion molecules
* Protein-protein interactions
* Micromechanical properties of lipid bilayers and vesicles
The text concludes with four chapters that examine new and emerging approaches in the use of force microscopy in biology and medicine.
This text is ideal for advanced undergraduate and graduate students and researchers in cell and molecular biology, genetics, genomics, physiology, neuroscience, biophysics, and biochemistry. Not only does it provide the theory, but also practical considerations such as the selection of the right tools and approach.

Books of Related Interest From Van Nostrand Reinhold Carcinogenically Active Chemicals A Reference Guide By Richard J. Lewis, Sr., 1088 pages, 7 x 10, ISBN 0-442-31875-8 More than 3400 chemicals verified or suspected as carcinogens are listed in this massive sourcebook. Data on each chemical are drawn from leading cancer research and regulatory agencies, and based on animal experiments, human case histories, or conclusions of expert review groups. Each entry contains experimental data relating to the carcinogenicity or mutagenicity of the entry with literature citations, and includes the conclusions of IARC, OSHA, ACGIH, DFG MAK, and NIOSH. Indexes are provided on human tumor sites, synonyms, CAS numbers, and a complete reference list is included. Hazardous Chemicals Desk Reference Second Edition By Richard J. Lewis, Sr., 1100 pages, 7 x 10, ISBN 0-442-00497-4 This complete update and revision of the renowned First Edition provides immediate access to vital information on approximately 5000 hazardous chemicals and compounds commonly used in industry, manufacturing, laboratories, and the workplace. Entries feature a concise review of toxicity and other hazards, including a helpful 1-to-3 hazard rating, important reference information such as chemical synonyms and CAS, NIOSH, and DOT number identifiers, standards for exposure limits, and general physical properties. The toxic and hazard review paragraph for each entry offers a detailed analysis of poisonous, irritant, corrosive, explosive, and carcinogenic properties. The entries provide a reliable guide to a full spectrum of short term and chronic human health effects associated with improper handling and exposure to these chemicals. Dangerous Properties of Industrial Materials Seventh Edition By N. Irving Sax and Richard J. Lewis, Sr., 4283 pages, 3 volumes, 8 1/2 x 11, ISBN 0-442-28020-3 This classic reference has been thoroughly revised and updated. It now provides more than 20,000 chemical entries, as compared to 18,000 entries offered in the Sixth Edition. Every entry has been reviewed and brought up-to-date, with physical properties checked, clinical data reviewed, synonyms added, and cross-references to the latest issues of Dangerous Properties of Industrial Materials Report included. Exposure standards have also been revised and expanded to include OSHA PELS, ACGIH Threshold Limit Values, Short- Term Exposure Limits, Biological Exposure Indices, and Maximum Allowable Concentrations (from the German Research Institute). Food Additives Handbook By Richard J. Lewis, Sr., 600 pages, 6 7/8 x 10, ISBN 0-442-20508-2 More than 1350 food additives, including direct and indirect additives, packaging materials, and pesticide residue, are covered in this handbook. Wide-ranging information on each additive includes physical properties, generic use, foods where used, hazards to the consumer and worker who handles large quantities and usage regulations. Key data are provided on unintentional additionals. Safety and nutritional issues relevant to add are discussed. Two sets of cross indexes speed up access.

This book contains all the necessary information and advice for anyone wishing to obtain electron micrographs showing the most accurate ultrastructural detail in thin sections of any type of biological specimen. The guidelines for the choice of preparative methods are based on an extensive survey of current laboratory practice. For the first time, in a textbook of this kind, the molecular events occurring during fixation and embedding are analysed in detail. The reasons for choosing particular specimen preparation methods are explained and guidance is given on how to modify established techniques to suit individual requirements. All the practical methods advocated are clearly described, with accompanying tables and the results obtainable are illustrated with many electron micrographs. Portland Press Series: Practical Methods in Electron Microscopy, Volume 17, Audrey M. Glauert, Editor Originally published in 1999. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

Explore the miracles of the microscopic world. Find out all about the unique and beautiful kingdoms of life at a microscopic scale and how every organism meets the challenges of survival no matter its size. The perfect book for people who enjoy photography, nature, and biology. Inside the pages of this exciting nature book, you'll find: - Microscopic life-forms (often neglected), and their larger life-forms in extreme close-ups, revealing details such as nerve cells and hair follicles - Artworks support the beautiful images, providing a deeper insight into structure and function and building a picture of how living organisms work at a microscopic level - Comprehensive coverage of the natural world, including all the main groups of living things - Explores overlooked groups that have a huge role in the natural world: insects, which make up 80 percent of the world's animal species; and bacteria - of which there are more in a human mouth than there are people in the world - The book is organised according to the main functions of life: movement, reproduction, energy and feeding, sensing the surroundings, defence, etc. - Foreword for the book written by Chris Packham Explore the inhabitants of an invisible world in incredible detail with this book which contains macro photography and spectacular microscope imagery. You'll have so much information about the hidden world of intricate structures beyond the naked eye. From the tiniest spiders and insects to even microscopic creatures such as bacteria and viruses, this book contains it all! See the beauty of a pollen grain, a butterfly egg, the spore of a fungus, and a human's nerve cell in extreme close up. The amazing imagery in Micro Life contains focus-stacked macro photographs and micrographs (microscope images), including scanning electron micrographs. Illustrations in this book explain the science - from the workings of an insect's eye to how a plant "breathes" through its leaves. Micro Life is an unexpectedly breathtaking look at the natural world. Find out how life works and how organisms solve the fundamental problems of movement, reproduction, energy, communication, and defence. Suitable for all the family, this stunning book makes a wonderful gift for those interested in photography, nature or biology.

Textbook of "in vivo" Imaging in Vertebrates.

Editors.

Vasilis Ntziachristos

Department of Radiology, Harvard University HMS/MGH, Charlestown, USA

Anne Leroy-Willig

U2R2M, CNRS and Universite Paris-Sud, Orsay, France

Bertrand Tavitian

Unite d'Imagerie de l'Expression des Genes, INSERM, Orsay, Franc

This book describes the new imaging techniques being developed to monitor physiological, cellular and subcellular function within living animals. This exciting field of imaging science brings together physics, chemistry, engineering, biology and medicine to yield powerful and versatile imaging approaches. By combining advanced non-invasive imaging technologies with new mechanisms for visualizing biochemical events and protein and gene function, non-invasive vertebrate imaging enables the in vivo study of biology and offers rapid routes from basic discovery to drug development and clinical application. Combined with the availability of an increasing number of animal models of human disease, and the ability to perform longitudinal studies of disease evolution and of the long-term effects of therapeutic procedures, this new technology offers the next generation of tools for biomedical research.

Well illustrated, largely in colour, the book reviews the most common and technologically advanced methods for vertebrate imaging, presented in a clear, comprehensive format. The basic principles are described, followed by several examples of the use of imaging in the study of living multicellular organisms, concentrating on small animal models of human diseases. The book illustrates:

- The types of information that can be obtained with modern in vivo imaging;

-The substitution of imaging methods for more destructive histological techniques;

- The advantages conferred by in vivo imaging in building a more accurate picture of the response of tissues to stimuli over time while significantly reducing the number of animals required for such studies.

Part 1 describes current techniques in in vivo imaging, providing specialists and laboratory scientists from all disciplines with clear and helpful information regarding the tools available for their specific research field. Part 2 looks in more detail at imaging organ development and function, covering the brain, heart, lung and others. Part 3 describes the use of imaging to monitor various new types of therapy, following the reaction in an individual organism over time, e.g. after gene or cell therapy.

Most chapters are written by teams of physicists and biologists, giving a balanced coherent description of each technique and its potential applications.

The book is aimed at a broad audience conducting research in areas such as biochemistry, physiology, developmental biology, oncology and pharmacology. While written primarily for those already engaged in imaging studies, it will also be of interest to scientists from other disciplines looking for an entry point into the field of in vivo imaging in small animals.

The present biodiversity crisis is rife with opportunities to make important conservation decisions; however, the misuse or misapplication of the methods and techniques of animal ecology can have serious consequences for the survival of species. Still, there have been relatively few critical reviews of methodology in the field. This book provides an analysis of some of the most frequently used research techniques in animal ecology, identifying their limitations and misuses, as well as possible solutions to avoid such pitfalls. In the process, contributors to this volume present new perspectives on the collection, analysis, and interpretation of data.

"Research Techniques in Animal Ecology" is an overarching account of central theoretical and methodological controversies in the field, rather than a handbook on the minutiae of techniques. The editors have forged comprehensive presentations of key topics in animal ecology, such as territory and home range estimates, habitation evaluation, population viability analysis, GIS mapping, and measuring the dynamics of societies. Striking a careful balance, each chapter begins by assessing the shortcomings and misapplications of the techniques in question, followed by a thorough review of the current literature, and concluding with possible solutions and suggested guidelines for more robust investigations.

Super-Resolution Microscopy Techniques in the Neurosciences serves as a comprehensive description of current super-resolution techniques, including the physical principles that allowed for their development, some of the most recent neurobiological applications and selected information for the practical use of these technologies. Written for the Neuromethods series, this detailed work contains contributions from experts in the field and provides key implementation advice to ensure successful results in the lab. Authoritative and cutting-edge, Super-Resolution Microscopy Techniques in the Neurosciences is an ideal guide for researchers aiming to continue increasing the resolution in the imaging capabilities of neuroscientists and thereby changing the perspective in which cellular biology processes are understood at the nanometer scale.

Arising no doubt from its pre-eminence as a natural liquid, water has always been considered by chemists as the original solvent in which very varied chemical reactions can take place, both for preparational and for analytical purposes. This explains the very long-standing interest shown in the study of aqueous solutions. In this con nection, it must be stressed that the theory of Arrhenius and Ostwald (1887-1894) on electrolytic dissociation, was originally devised solely for solutions in water and that the first true concept of acidity resulting from this is linked to the use of this solvent. The more recent development of numerous physico-chemical measurement methods has made possible an increase of knowledge in this area up to an extremely advanced degree of systematization. Thus today we have available both a very large amount of experimental data, together with very refined methods of deduction and of quantitative treatment of chemical reactions in solution which enable us to make the fullest use of this data. Nevertheless, . it appears quite evident at present that there are numerous chemical processes which cannot take place in water, and that its use as a solvent imposes 2 INTRODUCTION limitations. In order to overcome these limitations, it was natural that interest should be attracted to solvents other than water and that the new possibilities thus opened up should be explored."

Scanning Tunneling Microscopy and its Application presents a unified view of the rapidly growing field of STM, and its many derivatives. A thorough discussion of the various principles provides the background to tunneling phenomena and leads to the many novel scanning-probe techniques, such as AFM, MFM, BEEM, PSTM, etc. After having examined the available instrumentation and the methods for tip and surface preparations, the monograph provides detailed accounts of STM application to metal and semiconductor surfaces, adsorbates and surface chemistry, biology, and nanofabrication. It examines limitations of the present-day investigations and provides hints about possible further trends. This second edition includes important new developments in the field.

Forrest M. Mims is a revered contributor to Make: magazine, where his popular columns about science-related topics and projects for Makers are evergreen treasures. Collected together here for the first time, these columns range from such simple projects as building an LED tracker for hand-launched night rockets to such challenging builds as transforming strings of data into unique musical compositions. A variety of photography and imaging projects are featured, including an ultra-sensitive twilight photometer that measures the elevation of layers of dust, smoke, and smog from around 3,000 feet to the top of the stratosphere at 31 miles! Most of the projects can be done with a collection of simple electronic components, such as LEDs, transistors, resistors, and batteries. To inspire and motivate readers, the book also includes profiles of such famous Makers as President Thomas Jefferson and Microsoft co-founder Paul Allen.

This update to Peter R. Mouton's pioneering work provides bioscientists with the concepts needed in order to apply the principles and practices of unbiased stereology to research involving biological tissues.

Mouton starts with a brief explanation of the history and theory of the process before defining the terms, concepts, and tools of unbiased stereological procedures. He compares and contrasts the procedures with less-exacting approaches to quantitative analysis of biological structure using specific examples from biomedical literature. The book incorporates existing best practices with new methodologies, such as the Rare Event Protocol, while simplifying the dense, often difficult literature on the subject to show the utility and importance of unbiased stereology. This clear, insightful guide goes a step further than other books on this subject by demonstrating not only how to use unbiased stereology but also how to interpret and present the results.

Written by the official U.S. representative to the International Society for Stereology, this is the most complete, up-to-date resource on the science of unbiased stereology. Those new to bioscience research as well as experienced practitioners will find that Mouton's explanations are the perfect companion for stereology courses and workshops.

This book provides an introduction to two important aspects of modern bioch- istry, molecular biology, and biophysics: computer simulation and data analysis. My aim is to introduce the tools that will enable students to learn and use some f- damental methods to construct quantitative models of biological mechanisms, both deterministicandwithsomeelementsofrandomness;tolearnhowconceptsofpr- ability can help to understand important features of DNA sequences; and to apply a useful set of statistical methods to analysis of experimental data. The availability of very capable but inexpensive personal computers and software makes it possible to do such work at a much higher level, but in a much easier way, than ever before. TheExecutiveSummaryofthein?uential2003reportfromtheNationalAcademy of Sciences, "BIO 2010: Transforming Undergraduate Education for Future - search Biologists" [12], begins The interplay of the recombinant DNA, instrumentation, and digital revolutions has p- foundly transformed biological research. The con?uence of these three innovations has led to important discoveries, such as the mapping of the human genome. How biologists design, perform, and analyze experiments is changing swiftly. Biological concepts and models are becoming more quantitative, and biological research has become critically dependent on concepts and methods drawn from other scienti?c disciplines. The connections between the biological sciences and the physical sciences, mathematics, and computer science are rapidly becoming deeper and more extensive.

Volume 26 Reviews In Computational Chemistry

Kenny B. Lipkowitz and Thomas R. Cundari Donald B. Boyd, Editor Emeritus

This book series contains pedagogically driven reviews of computational methods for the novice molecular modeler as well as for the expert computational scientist. Topics covered in this volume include computational methods needed to compute interactions accurately, quantum mechanical methods used for computing weakly bound clusters, computing excited state properties with time-dependent density functional theory, and methods for computing quantum phase transitions. Also covered are real-space and multi-grid methods, hybrid methods for atomic level simulations spanning multiple time scales and multiple length scales, techniques used for extending time scales in atomic level simulations, and strategies for simulating ionic liquids.

From Reviews Of The Series

"Reviews in Computational Chemistry remains the most valuable reference to methods and techniques in computational chemistry."
--Journal Of Molecular Graphics And Modelling

"One cannot generally do better than to try to find an appropriate article in the highly successful Reviews in Computational Chemistry. The basic philosophy of the editors seems to be to help the authors produce chapters that are complete, accurate, clear, and accessible to experimentalists (in particular) and other nonspecialists (in general)."
--Journal Of The American Chemical Society

If you're taking a basic course in classical physics, or have a healthy curiosity for the way things work in the physical world, the Illustrated Guide to Home Physics Experiments provides an ideal hands-on introduction to physics lab techniques and data analysis. With this book and a few simple (and inexpensive) tools and materials, you'll learn to conduct experiments that answer questions about our world, make demonstrations to show off physical principles, and do theoretical lab work to discover how the world works. Perfect for do-it-yourselfers, home-schooled high school students, and college students, this book will help you: Learn everything from the basics of motion all the way to particle physics - including energy, thermodynamics, magnetic fields, optics, and much more Take careful measurements of physical phenomena and conduct data analysis Build and perform physics demonstrations that are fascinating and fun Construct computer models to represent aspects of the physical world It's easy to get started. You can build most of the experiments and demonstrations in this book with ordinary household tools, using materials that you can scrounge, borrow, or get free. The most important thing is your willingness to enter the door of discovery that awaits you. The Illustrated Guide to Home Physics Experiments is your key.

The volumes VIII, IX and X examine the physical and technical foundation for recent progress in applied scanning probe techniques. This is the first book to summarize the state-of-the-art of this technique. The field is progressing so fast that there is a need for a set of volumes every 12 to 18 months to capture latest developments. These volumes constitute a timely comprehensive overview of SPM applications.

Over the past decade, advances in the field of close-range photogrammetry have been rapid and the era of digital photogrammetry is well on its way. This book provides a complete account of the subject with contributions from international experts.;The methodology, algorithms, techniques and equipment necessary to achieve real-time digital photogrammetric solutions are presented, together with contemporary aspects of close-range photogrammetry. Advances in the theory are presented as are a range of important applications of photogrammetry which illustrate the flexibility and comprehensive nature of these techniques of three-dimensional measurement.

The definitive guide to the principles and practice of experimental organic chemistry - fully updated and now featuring more than 100 experiments The latest edition of this popular guide to experimental organic chemistry takes students from their first day in the laboratory right through to complex research procedures. All sections have been updated to reflect new techniques, equipment and technologies, and the text has been revised with an even sharper focus on practical skills and procedures. The first half of the book is devoted to safe laboratory practice as well as purification and analytical techniques; particularly spectroscopic analysis. The second half contains step-by-step experimental procedures, each one illustrating a basic principle, or important reaction type. Tried and tested over almost three decades, over 100 validated experiments are graded according to their complexity and all are chosen to highlight important chemical transformations and to teach key experimental skills. New sections cover updated health and safety guidelines, additional spectroscopic techniques, electronic notebooks and record keeping, and techniques, such as semi-automated chromatography and enabling technologies such as the use of microwave and flow chemistry. New experiments include transition metal-catalysed cross-coupling, organocatalysis, asymmetric synthesis, flow chemistry, and microwave-assisted synthesis. Key aspects of this third edition include: * Detailed descriptions of the correct use of common apparatus used in the organic laboratory * Outlines of practical skills that all chemistry students must learn * Highlights of aspects of health and safety in the laboratory, both in the first section and throughout the experimental procedures * Four new sections reflecting advances in techniques and technologies, from electronic databases and information retrieval to semi-automated chromatography * More than 100 validated experiments of graded complexity from introductory to research level * A user-friendly experiment directory * An instructor manual and PowerPoint slides of the figures in the book available on a companion website A comprehensive guide to contemporary organic chemistry laboratory principles, procedures, protocols, tools and techniques, Experimental Organic Chemistry, Third Edition is both an essential laboratory textbook for students of chemistry at all levels, and a handy bench reference for experienced chemists.

Written for animal researchers, this book provides a comprehensive guide to the design and statistical analysis of animal experiments. It has long been recognised that the proper implementation of these techniques helps reduce the number of animals needed. By using real-life examples to make them more accessible, this book explains the statistical tools employed by practitioners. A wide range of design types are considered, including block, factorial, nested, cross-over, dose-escalation and repeated measures and techniques are introduced to analyse the experimental data generated. Each analysis technique is described in non-mathematical terms, helping readers without a statistical background to understand key techniques such as t-tests, ANOVA, repeated measures, analysis of covariance, multiple comparison tests, non-parametric and survival analysis. This is also the first text to describe technical aspects of InVivoStat, a powerful open-source software package developed by the authors to enable animal researchers to analyse their data and obtain informative results.

Since the initial discovery of the G protein-coupled receptor system that regulates cyclicAMP production, the G protein field has rapidly expanded. Cell surface receptors that couple to heterotrimeric G proteins, the G prote- coupled receptors (GPCRs), number in the hundreds and bind to a wide div- sity of ligands including, biogenic amines (e. g. , adrenaline), lipid derivatives (e. g. , lysophosphatidic acid), peptides (e. g. , opioid peptides), proteins (e. g. , thyroid-stimulating hormone), and odorants to name a few. The GPCR system is found throughout biology in such simple organisms as yeast and in such more complex organisms as Dictyostelium discoideum (slime mold), Caen- habditis elegans (nematode worm), and of course in humans. GPCRs and their associated G protein systems are the subject of intense academic research and because of their involvement in a human biology and disease, the pharmac- tical industry has large research initiatives dedicated to the study of GPCRs. By some estimates, more than 50% of the pharmaceuticals on the market are targeted at GPCRs. The G protein/G protein-coupled receptor system consists of a receptor (GPCR), a heterotrimeric G protein consisting of ?, ?, and ? subunits, and an effector. G protein effector molecules, such as enzymes or ion channels, respond to acti- tion by the G protein to generate second messengers or changes in membrane potential that lead to alterations in cell physiology.

"BioCoder" is a quarterly newsletter for DIYbio, synthetic bio, and anything related. You ll discover: Articles about interesting projects and experiments, such as the glowing plantArticles about tools, both those you buy and those you buildVisits to DIYbio laboratoriesProfiles of key people in the communityAnnouncements of events and other items of interestSafety pointers and tips about good laboratory practiceAnything that s interesting or useful: you tell us!And "BioCoder" is free (for the time being), unless you want a dead-tree version. We d like "BioCoder" to become self supporting (maybe even profitable), but we ll worry about that after we ve got a few issues under our belt.If you d like to contribute, send email to [email protected]. Tell us what you d like to do, and we ll get you started."