Since its first edition over 60 years ago, Rockwood and Green’s Fractures in Adults has been the go-to reference for treating a wide range of fractures in adult patients. The landmark, two-volume tenth edition continues this tradition with two new international editors, a refreshed mix of contributors, and revised content throughout, bringing you fully up to date with today’s techniques and technologies for treating fractures in orthopaedics. Drs. Paul Tornetta III, William M. Ricci, Robert F. Ostrum, Michael D. McKee, Benjamin J. Ollivere, and Victor A. de Ridder lead a team of experts who ensure that the most up-to-date information is presented in a comprehensive yet easy to digest manner.
This exhaustive reference includes new chapters and pedagogical features, as well as—for the first time—content on managing fragility factures. To facilitate fast, easy absorption of the material, this edition has been streamlined and now includes more tables, charts, and treatment algorithms than ever before. Experts in their field share their experiences and offer insights and guidance on the latest technical developments for common orthopaedic procedures, including their preferred treatment options.
Nicolaas van Wijk (1880-1941) was the founder of Slavic studies in the Netherlands and one of the greatest Slavists in general. This book describes for the first time how a scholar of the Dutch language, whose etymological dictionary of the Dutch language is still considered the best of its kind, was appointed in 1913 to the newly created Chair in Slavic languages at Leiden University and built up a tremendous reputation for himself in Eastern Europe. Van Wijk's relations with his famous teacher, the linguist C.C. Uhlenbeck, are followed attentively, as is his postgraduate apprenticeship in Leipzig (1902-1903), where he followed August Leskien's lectures in Slavic studies. Attention is also paid to the various aspects of Van Wijk's enormous oeuvre covering the whole field of Slavic studies and of phonology, of which he was one of the pioneers. Van Wijk did not, however, follow the lines approved for the social conduct of a Leiden professor and was at one time suspected by the police of communist activities. His commitment to materially helping all he could from an Eastern Europe torn apart by the First World War and its aftermath was exceptional. His fascination with all things Russian is a background theme that played throughout his life and even at his death: son of a Dutch Reformed minister, the bachelor Van Wijk was buried in a grave surmounted by a Russian Orthodox cross beside his Russian foster son, who died young. This book is of interest to Slavists, linguists and cultural historians.
An acclaimed chef offers a historically informed cookbook that will change how you think about Midwestern cuisine. Celebrated chef Paul Fehribach has made his name serving up some of the most thoughtful and authentic regional southern cooking—not in the South, but in Chicago at Big Jones. But over the last several years, he has been looking to his Indiana roots in the kitchen, while digging deep into the archives to document and record the history and changing foodways of the Midwest. Fehribach is as painstaking with his historical research as he is with his culinary execution. In Midwestern Food, he focuses not only on the past and present of Midwestern foodways but on the diverse cultural migrations from the Ohio River Valley north- and westward that have informed them. Drawing on a range of little-explored sources, he traces the influence of several heritages, especially German, and debunks many culinary myths along the way. The book is also full of Fehribach’s delicious recipes informed by history and family alike, such as his grandfather's favorite watermelon rind pickles; sorghum-pecan sticky rolls; Detroit-style coney sauce; Duck and manoomin hotdish; pawpaw chiffon pie; strawberry pretzel gelatin salad (!); and he breaks the code to the most famous Midwestern pizza and BBQ styles you can easily reproduce at home. But it is more than just a cookbook, weaving together historical analysis and personal memoir with profiles of the chefs, purveyors, and farmers who make up the food networks of the region. The result is a mouth-watering and surprising Midwestern feast from farm to plate. Flyover this!
With easy oil extraction becoming a thing of the past, new technologies and processes of discovery have been introduced into the exploration of oil and gas. These advancements rely on precise and accurate data, in many cases live during operations. Surface well testing operations acquire the necessary data during exploration, production, and development, and clean data is essential and heavily relied upon. Surface Well Testing: A Practical Guide guides readers on the fundamentals and techniques of surface well testing operations and data acquisition to ensure proper operational procedures and standards. Explains actual operations, equipment, and data acquisition and quality Introduces readers to the processes and techniques of surface well testing, the required measurements and readings, and how to get the right data to perform accurate reservoir and petroleum engineering calculations Bridges the gap between practical field operations and simulated engineering and mathematical models This book supports readers and organisations in the oil and gas industry as an operations reference and training manual to ensure standardisation of operating procedures and accuracy of results.
Paul Betts first came to my attention through his pioneering article on the post-1945 Bauhaus myth as a joint German-American venture. This book is a landmark study of cultural continuities and ruptures, institutional realignments, and individual careers that introduces a breath of fresh air into a field of research long staled by received ideas. It demonstrates the rewards of approaching the years from 1933 to 1945 as a revealing window onto the subsequent history of West Germany."—Wolfgang Schivelbusch "The Authority of Everyday Objects is a small gem of the new cultural history. This is a work of striking originality and insight that fits the development of industrial design in postwar Germany into the country's broader social, cultural and political history, constructing an analytical narrative that carries from the Third Reich into the Cold War. It illuminates not merely cultural transformation but the wider social history of twentieth-century Germany."—Stanley G. Payne, author of A History of Fascism, 1914-1945 "The Authority of Everyday Objects is a refreshing, innovative, and convincing approach to post-World War II Western consumer society. Design—as a weapon in Cold War competition and as a vehicle for German redemption by revitalizing Bauhaus traditions—is thoroughly researched and wonderfully presented in Paul Betts' book. This well-illustrated work convinces the reader that design was a part of gluecklich Leben ("lucky life") and schoen wohnen ("beautiful living"), and a factor in the politicization of material culture."—Ivan T. Berend, author of Decades of Crisis: Central and Eastern Europe before World War II and History Derailed: Central and Eastern Europe in the Long Nineteenth Century
The modeling of item response data is governed by item response theory, also referred to as modern test theory. The eld of inquiry of item response theory has become very large and shows the enormous progress that has been made. The mainstream literature is focused on frequentist statistical methods for - timating model parameters and evaluating model t. However, the Bayesian methodology has shown great potential, particularly for making further - provements in the statistical modeling process. The Bayesian approach has two important features that make it attractive for modeling item response data. First, it enables the possibility of incorpor- ing nondata information beyond the observed responses into the analysis. The Bayesian methodology is also very clear about how additional information can be used. Second, the Bayesian approach comes with powerful simulation-based estimation methods. These methods make it possible to handle all kinds of priors and data-generating models. One of my motives for writing this book is to give an introduction to the Bayesian methodology for modeling and analyzing item response data. A Bayesian counterpart is presented to the many popular item response theory books (e.g., Baker and Kim 2004; De Boeck and Wilson, 2004; Hambleton and Swaminathan, 1985; van der Linden and Hambleton, 1997) that are mainly or completely focused on frequentist methods. The usefulness of the Bayesian methodology is illustrated by discussing and applying a range of Bayesian item response models.
How rewilding has transformed the conservation movement, combining radical scientific insights with practical innovations. Progressive scientists and conservation professionals are pursuing a radical new approach to restoring ecosystems: rewilding. By recovering the ripple effect generated by the interactions among plant and animal species and natural disturbances, rewilding seeks to repair ecosystems by removing them from human engineering and reassembling guilds of megafauna from a mix of surviving wild and feral species and de-domesticated breeds, including elk, bison, and feral horses. Written by two leaders in the field, this book offers an abundantly illustrated guide to the science of rewilding. It shows in fascinating detail the ways in which ecologists are reassembling ecosystems that allow natural interactions rather than human interventions to steer their environmental trajectories. Rewilding looks into a past in which industrialization and globalization downgraded grasslands, describes current projects designed to recover self-willed ecosystems, and envisions the future with ten predictions for a rewilded planet. It shows how rewilding is shaking up conservation science and policy, bringing new hope and renewed purpose to efforts to revive essential ecological processes. Color illustrations capture moments of beauty in nature and offer enlightening infographics and visualizations.
This issue of Neurosurgery Clinics of North America is Guest Edited by Drs. Paul Nyquist, Marek Mirski, and Rafael Tamargo, all from The Johns Hopkins Hospital in Baltimore, Maryland. This issue will cover important topics for the neurosurgeon in the Neurocritical Care Unit, including issues in ventilation in the patient with brain injury, ultrasound, seizures, subarachnoid hemorrhage, microdialysis, and management of brain trauma, acute spinal cord injury, and intracranial hemorrhages.
This book presents the latest developments of Systems Thinking in Practice to the analysis and design of complex sociotechnical systems. The Event Analysis of Systemic Teamwork (EAST) method is applied to micro, meso and macro systems. Written by experts in the field, this text covers a diverse range of domains, including: automation, aviation, energy grid distribution, military command and control, road and rail transportation, sports, and urban planning. Extensions to the EAST method are presented along with future directions for the approach. Illustrates a contemporary review of the status of Distributed Cognition (DCOG) Presents examples of the application of Event Analysis of Systemic Teamwork (EAST) method Presents examples of the application of Event Analysis of Systemic Teamwork (EAST) method Discusses the metrics for the examination of social, task, and information networks Provides comparison of alternative networks with implications for design of DCOG in systems
The many recent high profile corporate scandals highlight the need for companies to do a better job of integrating ethics and responsibility into business decisions - and for business schools to integrate ethics awareness and training into their curricula. This volume sets the agenda for business ethics and corporate responsibility in the future. It brings together ideas, challenges, and proposed solutions for thinking about - and implementing - effective ethics programs in business schools and business organizations. Edited by two highly regarded business educators, and featuring contributions by leading scholars and administrators, Business Ethics: New Challenges for Business Schools and Corporate Leaders covers all dimensions of ethical decision making - individual, organizational, and societal. The thirteen original chapters offer new and emerging perspectives for creating ethical business leadership and developing organizational ethics initiatives.
This edited volume gives a new and integrated introduction to item response models (predominantly used in measurement applications in psychology, education, and other social science areas) from the viewpoint of the statistical theory of generalized linear and nonlinear mixed models. The new framework allows the domain of item response models to be co-ordinated and broadened to emphasize their explanatory uses beyond their standard descriptive uses. The basic explanatory principle is that item responses can be modeled as a function of predictors of various kinds. The predictors can be (a) characteristics of items, of persons, and of combinations of persons and items; (b) observed or latent (of either items or persons); and they can be (c) latent continuous or latent categorical. In this way a broad range of models is generated, including a wide range of extant item response models as well as some new ones. Within this range, models with explanatory predictors are given special attention in this book, but we also discuss descriptive models. Note that the term "item responses" does not just refer to the traditional "test data," but are broadly conceived as categorical data from a repeated observations design. Hence, data from studies with repeated observations experimental designs, or with longitudinal designs, may also be modelled. The book starts with a four-chapter section containing an introduction to the framework. The remaining chapters describe models for ordered-category data, multilevel models, models for differential item functioning, multidimensional models, models for local item dependency, and mixture models. It also includes a chapter on the statistical background and one on useful software. In order to make the task easier for the reader, a unified approach to notation and model description is followed throughout the chapters, and a single data set is used in most examples to make it easier to see how the many models are related. For all major examples, computer commands from the SAS package are provided that can be used to estimate the results for each model. In addition, sample commands are provided for other major computer packages. Paul De Boeck is Professor of Psychology at K.U. Leuven (Belgium), and Mark Wilson is Professor of Education at UC Berkeley (USA). They are also co-editors (along with Pamela Moss) of a new journal entitled Measurement: Interdisciplinary Research and Perspectives. The chapter authors are members of a collaborative group of psychometricians and statisticians centered on K.U. Leuven and UC Berkeley.
This book is the tenth in a series presenting research papers arising from MSc/MRes research projects undertaken by students of the School of Computing and Mathematics at Plymouth University. The publications in this volume are based upon research projects that were undertaken during the 2011/12 academic year. A total of 25 papers are presented, covering many aspects of modern networking and communication technology, including security, mobility, coding schemes and quality measurement. The expanded topic coverage compared to earlier volumes in this series reflects the broadening of our range of MSc programmes. Specifically contributing programmes are: Communications Engineering and Signal Processing, Computer and Information Security, Network Systems Engineering, and Robotics.
How can beliefs, which are immaterial, be about things? How can the body be the seat of thought? This book traces the historical roots of the cognitive sciences and examines pre-modern conceptualizations of the mind as presented and discussed in the tradition of commentaries on Aristotle's De anima from 1200 until 1650. It explores medieval and Renaissance views on questions which nowadays would be classified under the philosophy of mind, that is, questions regarding the identity and nature of the mind and its cognitive relation to the material world. In exploring the development of scholastic ideas, concepts, arguments, and theories in the tradition of commentaries on De anima, and their relation to modern philosophy, this book dissolves the traditional periodization into Middle Ages, Renaissance and early modern times. By placing key issues in their philosophico-historical context, not only is due attention paid to Aristotle's own views, but also to those of hitherto little-studied medieval and Renaissance commentators.
Offering expert, comprehensive guidance on the basic science, diagnosis, and treatment of acute musculoskeletal injuries and post-traumatic reconstructive problems, Skeletal Trauma, 6th Edition, brings you fully up to date with current approaches in this challenging specialty. This revised edition is designed to meet the needs of orthopaedic surgeons, residents, fellows, and traumatologists, as well as emergency physicians who treat patients with musculoskeletal trauma. International thought leaders incorporate the latest peer-reviewed literature, technological advances, and practical advice with the goal of optimizing patient outcomes for the full range of traumatic musculoskeletal injuries. - Offers complete coverage of relevant anatomy and biomechanics, mechanisms of injury, diagnostic approaches, treatment options, and associated complications. - Includes eight new chapters dedicated to advances in technology and addressing key problems and procedures, such as Initial Evaluation of the Spine in Trauma Patients, Management of Perioperative Pain Associated with Trauma and Surgery, Chronic Pain Management (fully addressing the opioid epidemic), Understanding and Treating Chronic Osteomyelitis, and more. - Features a complimentary one-year subscription to OrthoEvidence, a global online platform that provides high-quality, peer-reviewed and timely orthopaedic evidence-based summaries of the latest and most relevant literature. Contains unique, critical information on mass casualty incidents and war injuries, with contributions from active duty military surgeons and physicians in collaboration with civilian authors to address injuries caused by road traffic, armed conflict, civil wars, and insurgencies throughout the world. - Features important call out boxes summarizing key points, pearls and pitfalls, and outcomes. - Provides access to nearly 130 instructional videos that demonstrate principles of care and outline detailed surgical procedures. - Contains a wealth of high-quality illustrations, full-color photographs, and diagnostic images. - Enhanced eBook version included with purchase. Your enhanced eBook allows you to access all of the text, figures, and references from the book on a variety of devices.
This book gives a detailed description of all books, published in the Dutch Republic and its Generality Lands between 1567 and 1773 – the year in which the Society of Jesus was suppressed by Pope Clement XIV for political reasons –, written by Jesuits from the Low Countries and elsewhere. Locations of the books are given, as far as possible, as well as bibliographical sources. Many of these publications are pirate editions, mainly from France and Germany. Technical and historical introductions precede this bibliography, and several indexes and registers conclude this work. The titles show the areas in which Jesuits have been active, and indicate their influence in many fields. A similar work has never been attempted before.
The need for effective public transport is greater than ever in the 21st century. With countries like China and India moving towards mass-automobility, we face the prospects of an environmental and urban health disaster unless alternatives are found. It is time to move beyond the automobile age. But while public transport has worked well in the dense cores of some big cities, the problem is that most residents of developed countries now live in dispersed suburbs and smaller cities and towns. These places usually have little or no public transport, and most transport commentators have given up on the task of changing this: it all seems too hard. This book argues that the secret of 'European-style' public transport lies in a generalizable model of network planning that has worked in places as diverse as rural Switzerland, the Brazilian city of Curitiba and the Canadian cities of Toronto and Vancouver. It shows how this model can be adapted to suburban, exurban and even rural areas to provide a genuine alternative to the car, and outlines the governance, funding and service planning policies that underpin the success of the world's best public transport systems."--Back cover.
In A Rough Ride, Paul Kimmage gives a devastatingly frank account of what life is really like in the world of professional cycling. In tracing his mixed fortunes, Kimmage describes not only the grueling pressures of the sport but also the seamier side: the widespread use of drugs to enhance performance. A Rough Ride breaks the law of silence to expose a world where the supposed glamour has worn very thin.
Since the publishing of the first edition of Classification Methods for Remotely Sensed Data in 2001, the field of pattern recognition has expanded in many new directions that make use of new technologies to capture data and more powerful computers to mine and process it. What seemed visionary but a decade ago is now being put to use and refined in
Public health thrives on high-quality evidence, yet acquiring meaningful data on a population remains a central challenge of public health research and practice. Social monitoring, the analysis of social media and other user-generated web data, has brought advances in the way we leverage population data to understand health. Social media offers advantages over traditional data sources, including real-time data availability, ease of access, and reduced cost. Social media allows us to ask, and answer, questions we never thought possible. This book presents an overview of the progress on uses of social monitoring to study public health over the past decade. We explain available data sources, common methods, and survey research on social monitoring in a wide range of public health areas. Our examples come from topics such as disease surveillance, behavioral medicine, and mental health, among others. We explore the limitations and concerns of these methods. Our survey of this exciting new field of data-driven research lays out future research directions.
This issue of Surgical Clinics of North America focuses on Emergency General Surgery, and is edited by Drs. Ron Martin (the Consulting Editor of Surgical Clinics) and Paul Schenarts. Articles will include: Aggressive Soft Tissue Infections; Acute Limb Ischemia; Acute Biliary Disease; Upper GI Hemorrhage; Perioperative Management of Anti-coagulation in Emergency Surgery; Appendicitis; Bowel Obstruction; Pancreatitis; Gut Ischemia; Acid Peptic Disease; Pneumoperitoneum; Volvulus; Diverticulitis; Lower GI Hemorrhage; and more!
The world's leading endurance athletes are not only some of the fittest people on the planet, they are also among the toughest mentally. To train and race at the highest level of competition over hundreds – and sometimes thousands – of miles takes preparation, dedication and the ability to push the body and mind beyond conventional limits. Ultra Performance offers an insight into the psychology of these athletes. Having interviewed fourteen ultra athletes, Paul Moore distils the dynamics of the mental toughness they required – the motivation, focus and ability to keep the mind positive deep in the heart of fatigue. What did it take, for instance, for Rachel Cadman to 'eat the elephant' of the Arch to Arc (running from London to Dover, swimming the Channel, then cycling to Paris)? And to win? That takes steeliness beyond all mere effort, pushing through and improvising when necessary. The stories of these hard-fought wins feature strongly in the contributions from Brett Sutton, world-renowned triathlon coach, and Craig Alexander, one of the greatest athletes in the history of Ironman. Others, like Dee Cafari, the first woman to circumnavigate the world solo in both directions, required the resilience to overcome challenges they had set themselves. With working examples of the implementation of their mental strategies, Ultra Performance not only gives an insight into the toughest moments these professional athletes have ever faced, but also offers advice to readers on how they can adapt and employ these techniques for themselves, often to the non-sporting pursuits of everyday life.
The presence - or absence - of soil organic matter (SOM) has important implications for agricultural productivity. It could also have significant implications for global climate due to its role as a source/sink of carbon. Therefore, it is important to understand the issues related to the accumulation or loss of SOM, to use what we have learned from experiments to make sound decisions about soil and crop management, and to test models and future concepts concerning SOM management. A database is included with the book, presenting tabular data for 34 sites in North America. Soil Organic Matter in Temperate Agroecosystems discusses all of these issues and more, answering such questions as:
This book provides a coherent and comprehensive overview of the generation and application of mono-energetic positron beams. It has been written by acknowledged experts, at a level accessible to graduate students working, or planning to work, with positron beams, and to scientists in other areas who want to know something about the field.The book begins with a brief historical introduction and an overview of how positron beams are generated and transported. A description of the fate of slow positrons in gaseous and condensed matter, with reference to many of the fundamental measurements made possible by the advent of positron beams, is followed by a discussion on applications in the study of solid surfaces, defect profiling in subsurface regions, interfaces and thin films, and the probing of bulk properties in novel ways. The book ends with a look at the future, considering the prospects for intense positron beams and their potential for further research.
Obtain the best outcomes from the latest techniques with help from a "who's who" of orthopaedic trauma experts. The updated edition of Skeletal Trauma: Basic Science, Management, and Reconstruction is dedicated to conveying today's most comprehensive information on the basic science, diagnosis, and treatment of acute musculoskeletal injuries and post-traumatic reconstructive problems. You'll be equipped with all of the knowledge needed to manage any type of traumatic injury in adults. Confidently approach every form of traumatic injury with current coverage of relevant anatomy and biomechanics, mechanisms of injury, diagnostic approaches, treatment options, and associated complications. Access critical information concerning mass casualty incidents and war injuries. Sixteen active-duty military surgeons and physicians from various branches of the U.S. Military have collaborated with civilian authors to address injuries caused by road traffic, armed conflicts, civil wars, and insurgencies throughout the world. Learn from many brand-new chapters including Principles of Internal Fixation; Gunshot Wounds and Blast Injuries; New Concepts in Management of Thoracolumbar Fractures; Surgical Treatment of Acetabular Fractures; Diaphyseal Fractures of the Forearm; Fractures of the Distal Femur; Tibial Plateau Fractures; and Amputations in Trauma. Take advantage of guidance from expert editors, two brand new to this edition, and a host of new authors who provide fresh insights on current trends and approaches in the specialty. Know what to look for and how to proceed with a fully updated art program that features full-color intraoperative images and crisp, new figures. Handle the most challenging cases of latent or post-operative nonunions, malunions, and more with extensive coverage of post-traumatic reconstruction. Consult this title on your favorite e-reader, conduct rapid searches, and adjust font sizes for optimal readability.
This guide aims to explode the myths and misinformation about circumcision in an accessible, easy-to-read format. After describing the anatomy of the penis, the book explains the procedure, describes the risks associated and debunks the six most common reasons doctors will give when recommending it.
The third edition of the bestselling Classification Methods for Remotely Sensed Data covers current state-of-the-art machine learning algorithms and developments in the analysis of remotely sensed data. This book is thoroughly updated to meet the needs of readers today and provides six new chapters on deep learning, feature extraction and selection, multisource image fusion, hyperparameter optimization, accuracy assessment with model explainability, and object-based image analysis, which is relatively a new paradigm in image processing and classification. It presents new AI-based analysis tools and metrics together with ongoing debates on accuracy assessment strategies and XAI methods. New in this edition: Provides comprehensive background on the theory of deep learning and its application to remote sensing data. Includes a chapter on hyperparameter optimization techniques to guarantee the highest performance in classification applications. Outlines the latest strategies and accuracy measures in accuracy assessment and summarizes accuracy metrics and assessment strategies. Discusses the methods used for explaining inherent structures and weighing the features of ML and AI algorithms that are critical for explaining the robustness of the models. This book is intended for industry professionals, researchers, academics, and graduate students who want a thorough and up-to-date guide to the many and varied techniques of image classification applied in the fields of geography, geospatial and earth sciences, electronic and computer science, environmental engineering, etc.
Implant and Regenerative Therapy in Dentistry provides a uniquely clear, precise guide to decision making in a variety of clinical situations, from the treatment planning phases to the actual execution of the procedure. It offers concrete and useful decision criteria for various treatment options, as well as equipping readers with key problem-solving and critical apparatus. Implant and Regenerative Therapy In Dentistry anchors itself in the realities of clinical practice. Replete with decision-making algorithms, it acts as both as a reference and a daily companion to its readers, conveying information succinctly, thoroughly and accessibly. Its team of authors, gathered together under the leadership of an exceptional editor, create a book unique in its elegant simplicity and its day-to-day usefulness.
Legendary conservationists show us that we still have the power to prevent critical consequences of the sixth extinction in this game-changing book. Can we save threatened animals and ecosystems in the midst of a mass extinction? The answer is a resounding yes! Before They Vanish shows us how. In this wise and impassioned book, renowned conservation scientists Paul R. Ehrlich, Gerardo Ceballos, and Rodolfo Dirzo urge us to shift our thinking rather than succumb to grief over the losses that humanity faces. This comprehensive look at a crucial but often overlooked aspect of conservation—population extinction, or the loss of a species within a specific geographic location—guides us onto a new, hopeful path. The authors argue that conservationists have placed too much emphasis on the extinction of entire species, which occurs gradually enough that we only detect it in the direst of cases. By that time, meaningful action may be impossible. By shifting our focus to identifying extinction threats at the more localized population level, we can intervene more rapidly and effectively to prevent broader declines before it's too late. This change in perspective represents a critical step in saving these vanishing species; early detection and intervention may be our last, best hope for stemming the tide of this global crisis. Using examples from the worlds of vertebrates, invertebrates, plants, fungi, and microorganisms, the authors explain the concept of population extinction, its causes and consequences, and how to prevent the mass destruction of the amazing and unique creatures with whom we share our planet. This call to action is a must-read for anyone concerned with saving endangered and threatened species, our natural world—and ourselves.
This will help us customize your experience to showcase the most relevant content to your age group
Please select from below
Login
Not registered?
Sign up
Already registered?
Success – Your message will goes here
We'd love to hear from you!
Thank you for visiting our website. Would you like to provide feedback on how we could improve your experience?
This site does not use any third party cookies with one exception — it uses cookies from Google to deliver its services and to analyze traffic.Learn More.