Two sociologists reveal how small towns in Middle America are exporting their most precious resource—young people—and share what can be done to save these dwindling communities In 2001, with funding from the MacArthur Foundation, sociologists Patrick J. Carr and Maria J. Kefalas moved to Iowa to understand the rural brain drain and the exodus of young people from America’s countryside. They met and followed working-class “stayers”; ambitious and college-bound “achievers”; “seekers,” who head off to war to see what the world beyond offers; and “returners,” who eventually circle back to their hometowns. What surprised them most was that adults in the community were playing a pivotal part in the town’s decline by pushing the best and brightest young people to leave. In a timely, new afterword, Carr and Kefalas address the question “so what can be done to save our communities?” They profile the efforts of dedicated community leaders actively resisting the hollowing out of Middle America. These individuals have creatively engaged small town youth—stayers and returners, seekers and achievers—and have implemented a variety of programs to combat the rural brain drain. These stories of civic engagement will certainly inspire and encourage readers struggling to defend their communities.
Some basic knowledge of electronics is assumed, but the essential features of RF are fully described, including the important topic of receiver dynamic which is often overlooked in basic textbooks. The theory and circuit descriptions are geared towards genuine design applications rather than the oversimiplifications and skeleton circuits of many college texts. During his career, the late Joe Carr was one of the world's leading writers on electronics and radio, and an authority on the design and use of RF systems. Whether you are looking for a complete self-study course in RF technology, or a concise reference text to dip into, this book has the solution. - A complete course in understanding and designing RF circuits - Practical design knowhow from a world-class author
BUILD THE CIRCUITS THAT MAKE WIRELESS WORK If you like hands-on electronics, you’ll love Secrets of RF Circuit Design, Third Edition, by Popular Electronics writer Joe Carr. This update of the favorite RF circuit guide of thousands of electronics enthusiasts takes you inside wireless technology with step-by-step, illustrated directions for dozens of usable projects. This super guide demonstrates RF theory as it shows you how to overcome the technical and materials challenges facing those who build real-world electronics. You learn how to design and build receiver circuits, RF bridges, amplifiers, receiver preselectors, simple spectrum analyzers, and time domain reflectometers. You get detailed insights into simple RF instruments, as well as UHF and microwave components...complete troubleshooting guidance...and handy parts lists and components sources. This new edition packs the latest information on directional and hybrid couplers, and seven new chapters on demodulators, circuit vectors, measuring L-C circuits, and filtering circuits against EMI. “...a great book on wireless technology for persons starting out in RF electronics, as well as for RF technicians and ham radio operators.” ---Cotter W. Sayre, author of The Complete RF Technician’s Handbook (Amazon.com review)
Southern Footprints celebrates the more than fifty years of research projects carried out by University of South Alabama archaeologists and students as well as staff at the Center for Archaeological Studies in Mobile. Their dynamic work has been public facing through programs and exhibits curated at the University of South Alabama Archaeology Museum. Archaeologists Gregory A. Waselkov, former director of the Center, and Philip J. Carr, current director of the Center, present the "greatest hits" that have transformed knowledge of human history on the Alabama and Mississippi Gulf Coast from the Ice Age until recently. Of the hundreds of archaeological sites, premiere historic sites, such as Old Mobile and Holy Ground, are now archaeological preserves. Essays are arranged chronologically overall and survey the history and archaeology of a wide range of significant sites such as the Gulf Shores canoe canal, Bottle Creek Mounds, Old Mobile, Fort Mims, Spanish Fort, Spring Hill College, and Mobile River Bridge. Waselkov and Carr take care to acknowledge in these stories populations who are typically underdocumented and recognize the contributions of Native Americans and African Americans as uncovered through archaeology. While documenting all material culture and places that have been saved and preserved, they also note the dire impacts of climate change, environmental disasters, development, and neglect and share their urgency to protect these areas of shared history. Copious color photographs showcase the archaeology as it unfolded, often with the help of dedicated volunteers. Southern Footprints will serve as an indispensable reference on the rich Gulf heritage for all to appreciate"--
At the age of twenty-two Josh Wilkes finds himself and the family ranch in a struggle with a greedy plantation owner and band of outlaws. His father, not back from the war, has left him in charge of protecting his mother and the colored family that lives there in a time just after the Civil War. A time when feelings are of hate for coloreds and someone to trust is hard to find. He finds a horse that surprises him and a girl that his feelings grow for but the one problem is her uncle, the plantation owner and his secret for wanting the Wilkes Ranch. With his wit and roughness, Josh has to take a stand with what friends he has and a horse called Onile, or lose everything.
Described by some as "The Priest in the 'Hood", Father Carr serves in inner city parishes and ministers in three languages. Here Father Carr describes how the future of Catholicism is rooted in embracing evolution. He goes on to describe the failure of the concept of an American Catholic Church. Father Carr demonstrates how understanding evolution leads us to profoundly comprehend the teachings of the bible from Genesis to the Epistles. This leads us to a Catholicism into the new millenium that brings us back to the teachings from the first Christian century.
In this profile of a typical white working-class community on Chicago's South side, Carr describes the response within the community to the shootings of two local teenage girls by gang members. He describes how these shootings led to profound changes in the community's relationship to crime prevention.
A hands-on guide to finding the sources of electromagnetic interference and then fixing the problems. Includes basic theory of EMI as well as detailed explanations of why this problem is becoming more serious as the international scope of the communications and electronics industries grow. This book is not a textbook, but rather a handbook that will become a constant source of reference for anyone who runs into trouble with EMI. Includes chapters on grounding, circuit shielding and filtering, preventing EMI in circuit design, as well as EMI sources such as power lines, transmitters, television, consumer electronics, telephones, automobiles, and the ever-frustrating mystery EMI. There are very few other books available even though EMI is constantly discussed and cursed. Most of the books on the market are about how to prevent EMI in circuit design or approaches to understanding the theory behind EMI. Though this information is important, especially to an engineering audience, these books hold no value at all to the technicians and hands-on practitioners in the fields of communications and servicing.These savvy professionals know that the book they are looking for and need is just not on the market. To get the information they need, this group is forced to read every magazine article they can find on the subject and rely on the advice of other professionals whether through technician groups or newsgroups. This book fills a void in the telecommunications and electronics industries by providing practical troubleshooting information. Addresses the technician's needs and interests Written by an eminent authority in the field Covers correction and prevention of problems with EMI
Many writers focus on economy time series, but James B. Cornehlsen and Michael J. Carr are the first to outline a comprehensive, rigorously tested, easy to understand model. In Conquering The Divide, the authors provide documentation of their model's validity. Using statistical verification, Cornehlsen and Carr don't dumb down the economy; they lay out its signals and indicators. Here, they offer a plan for risk assessment that shows you how to maximize returns, forecast inflation, and get out before big declines. "I've been looking for a book like this for a long time. Carr and Cornehlsen, professional researchers by occupation, have done superb work here in terms of the relationships between various indicators, the economy, and the stock market, e
This book is open access under a CC BY-NC 2.5 license. This book offers a devastating look at deeply flawed development processes driven by international finance, African governments and the global consulting industry. It examines major river basin development underway in the semi-arid borderlands of Ethiopia, Kenya and South Sudan and its disastrous human rights consequences for a half-million indigenous people. The volume traces the historical origins of Gibe III megadam construction along the Omo River in Ethiopia—in turn, enabling irrigation for commercial-scale agricultural development and causing radical reduction of downstream Omo and (Kenya's) Lake Turkana waters. Presenting case studies of indigenous Dasanech and northernmost Turkana livelihood systems and Gibe III linked impacts on them, the author predicts agropastoral and fishing economic collapse, region-wide hunger with exposure to disease epidemics, irreversible natural resource destruction and cross-border interethnic armed conflict spilling into South Sudan. The book identifies fundamental failings of government and development bank impact assessments, including their distortion or omission of mandated transboundary assessment, cumulative effects of the Gibe III dam and its linked Ethiopia-Kenya energy transmission 'highway' project, key hydrologic and human ecological characteristics, major earthquake threat in the dam region and widespread expropriation and political repression. Violations of internationally recognized human rights, especially by the Ethiopian government but also the Kenyan government, are extensive and on the increase—with collaboration by the development banks, in breach of their own internal operational procedures. A policy crossroads has now emerged. The author presents the alternative to the present looming catastrophe—consideration of development suspension in order to undertake genuinely independent transboundary assessment and a plan for continued development action within a human rights framework—forging a sustainable future for the indigenous peoples now directly threatened and for their respective eastern Africa states. Claudia Carr’s book is a treasure of detailed information gathered over many years concerning river basin development of the Omo River in Ethiopia and its impact on the peoples of the lower Omo Basin and the Lake Turkana region in Kenya. It contains numerous maps, charts, and photographs not previously available to the public. The book is highly critical of the environmental and human rights implications of the Omo River hydropower projects on both the local ethnic communities in Ethiopia and on the downstream Turkana in Kenya. David Shinn Former Ambassador to Ethiopia and to Burkina Faso Adjust Professor of International Affairs, The George Washington University, Washington D.C.
A presentation of the history, theory and practical operation of old-time, home, auto, amateur, shortwave and CB radio sets which provides the detailed instructions and schematics required to repair or rebuild them. A troubleshooting section is included, with charts and pin-out diagrams.
Watch the book trailer for Hollowing Out the Middle In 2001, with funding from the MacArthur Foundation, sociologists Patrick J. Carr and Maria J. Kefalas moved to Iowa to understand the rural brain drain and the exodus of young people from America’s countryside. Articles and books—notably Richard Florida’s The Rise of the Creative Class—celebrate the migration of highly productive and creative workers to key cities. But what happens to the towns that they desert, and to the people who are left behind? To answer that question, Carr and Kefalas moved to "Ellis," a small town of two thousand. Ellis is typical of many places struggling to survive, and Iowa is typical of many states in the Heartland, aging rapidly. One reason is that many small towns simply aren’t regenerating, but another is that its educated young people are leaving in droves. In Ellis, Carr and Kefalas met the working-class "stayers," trying to survive in the region’s dying agro-industrial economy; the high-achieving and college-bound "achievers," who often leave for good; the "seekers" who head off to war to see what the world beyond offers; and the "returners," who eventually circle back to their hometowns. What surprised Carr and Kefalas most, was that adults in the community were playing a pivotal part in the town’s decline by pushing the best and brightest young people to leave, and by underinvesting in those who choose to stay—even though these young people are their best chance for a future. The emptying out of small towns is a national concern, but there are strategies for arresting the process and creating sustainable, thriving communities. Hollowing Out the Middle is a wake-up call we cannot afford to ignore—not only because sixty million Americans still live in rural communities and small towns, but because our nation’s economic health and future is tied to the Heartland.
Here is a comprehensive, practical guide to the entire process of analog instrumentation and control, from sensor input to data conversion circuitry and final output. This readable handbook avoids complex mathematical treatments, instead taking an applications-oriented approach and presenting many sample circuits and concrete examples. It is an essential reference for engineers and high-level technicians in a variety of scientific and engineering fields--anywhere data is collected electronically and where such data is used to control physical processes. - Covers design of instrumentation, control systems, and data acquisition circuits - Explains standard devices and techniques in a convenient, well-organized format - Takes an applications-oriented approach, rather than a theoretical one
The authors cover conventional telephone fundamentals, including analog and modern digital communications techniques, basic information on functions, how electronic circuits generate dialing tones, and latest technological tidbits.
The authors examine the continuing poor relationship between boys and the study of foreign languages. Framed by discussion of gender socialization, gendered curriculum practices and cultural narratives about boys and schooling, the core of the book is constructed by boys themselves.
THE DEFINITIVE ANTENNA REFERENCE--FULLY REVISED AND EXPANDED! Design and build your own antennas with the help of this unique guide. Updated and revised to provide clear answers to questions frequently asked by hobbyists and electronics technicians, Practical Antenna Handbook, Fifth Edition blends theoretical concepts with hands-on experience--requiring only high school mathematics Reorganized to flow logically from broad physical principles to specific antenna design and construction techniques, the book begins by covering the fundamentals. Then the half-wave dipole is discussed both as an excellent antenna in its own right and as a conceptual tool for predicting the performance of other designs. Transmission line impedance matching techniques--and a companion Smith chart tutorial--lead into "must have" accessories for tuning, monitoring, and troubleshooting antenna system performance. Other tools, such as antenna modeling software and network analyzer add-ons for PCs and Macs, are addressed, and concluding chapters offer fresh insights into support structures and installation techniques. NEW TOPICS COVERED INCLUDE: Characteristics of all-driven and parasitic arrays Beverages and small MF/HF receiving loops Top-loaded shunt-fed towers and other verticals Theory and design of Yagi beams Effect of real ground on propagation and antenna patterns, impedance, and efficiency Lightning protection and four kinds of ground systems Zoning and restrictive covenants COVERS A WIDE VARIETY OF ANTENNAS: Dipoles and inverted-Vs Quads, delta, and NVIS loops Wire arrays (bobtail curtain, half-square, rhombic) Verticals and shunt-fed towers Rotatable Yagi beams MF/HF receiving antennas (flag, pennant, K9AY, Beverage) Mobile and portable antennas VHF/UHF/microwave antennas And many more GO TO WWW.MHPROFESSIONAL.COM/CARR5 FOR: * Tables of worldwide geographic coordinates and antenna dimensions vs. frequency * Supplier updates * Author's blog * Additional photographs and schematics * Links to tutorials and specialized calculators
These notes are based on a series of lectures given in the Lefschetz Center for Dynamical Systems in the Division of Applied Mathematics at Brown University during the academic year 1978-79. The purpose of the lectures was to give an introduction to the applications of centre manifold theory to differential equations. Most of the material is presented in an informal fashion, by means of worked examples in the hope that this clarifies the use of centre manifold theory. The main application of centre manifold theory given in these notes is to dynamic bifurcation theory. Dynamic bifurcation theory is concerned with topological changes in the nature of the solutions of differential equations as para meters are varied. Such an example is the creation of periodic orbits from an equilibrium point as a parameter crosses a critical value. In certain circumstances, the application of centre manifold theory reduces the dimension of the system under investigation. In this respect the centre manifold theory plays the same role for dynamic problems as the Liapunov-Schmitt procedure plays for the analysis of static solutions. Our use of centre manifold theory in bifurcation problems follows that of Ruelle and Takens [57) and of Marsden and McCracken [51).
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.