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On Spectral Theory of Elliptic Operators By Yuri Egorov, Vladimir Kondratiev (auth.)
1996 | 334 Pages | ISBN: 3034898754 | PDF | 7 MB
It is well known that a wealth of problems of different nature, applied as well as purely theoretic, can be reduced to the study of elliptic equations and their eigen-values. During the years many books and articles have been published on this topic, considering spectral properties of elliptic differential operators from different points of view. This is one more book on these properties. This book is devoted to the study of some classical problems of the spectral theory of elliptic differential equations. The reader will find hardly any intersections with the books of Shubin [Sh] or Rempel-Schulze [ReSch] or with the works cited there. This book also has no general information in common with the books by Egorov and Shubin [EgShu], which also deal with spectral properties of elliptic operators. There is nothing here on oblique derivative problems; the reader will meet no pseudodifferential operators. The main subject of the book is the estimates of eigenvalues, especially of the first one, and of eigenfunctions of elliptic operators. The considered problems have in common the approach consisting of the application of the variational principle and some a priori estimates, usually in Sobolev spaces. In many cases, impor tant for physics and mechanics, as well as for geometry and analysis, this rather elementary approach allows one to obtain sharp results.

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On the Calculation of Volume II (On the Calculation of Volume, Book 2) by Solvej Balle, translated by Barbara Haveland
English | November 26, 2024 | ISBN: 0811237273 | True EPUB | 176 pages | 0.7 MB
Tara Selter's epic journey through November 18th continues in Book II of the masterly On the Calculation of Volume from one of Scandinavia's most beloved writers.

The first year of November eighteenth is coming to a close, and Tara Selter has returned to her hotel room in Paris, the place where it all began. As if perched at the edge of a precipice, she readies herself to leap into November nineteenth.
Book II of Solvej Balle's astounding seven-part series On the Calculation of Volume beautifully expands on the speculative premise of Book I, drawing us further into the maze of time, where space yawns open, as if suddenly gaining a new dimension, extending into ever more fined-grained textures. Within this new reality, our senses and the tactility of things grows heightened: sounds, smells, sights, objects come suddenly alive, as if the world had begun whispering to us in a new language.
And yet as the world announces itself anew, Tara's own sense of self is eroding, making her wonder just which bits of her are really left intact? "It is the Tara Selter with hopes and dreams who has fallen out of the picture, been thrown off the world, run over the edge, been poured out, carried off down the stream of eighteenths of November, lost, evaporated, swept out to sea." She begins to think of herself as a relic of the past, as something or someone leftover, similar to the little Roman coin she carries around in her pocket, without a purpose or a place.
Desperate to recover a sense of herself within time, Tara decides to head north by train in search of winter, but soon she turns south in pursuit of spring, as she tries to grasp on to durational time through seasonal variations. Amazingly, On the Calculation of Volume Book II is all movement and motion―taking us through the European countries of the North and the South, through seasons, and languages―a beautiful travelogue that is also a love letter to our vanishing world. To be continued.

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On the Edge: The Art of Risking Everything, UK Edition by Nate Silver
English | August 13th, 2024 | ISBN: 0241557038 | 576 pages | True EPUB | 8.18 MB
AN INTERNATIONAL BESTSELLER

From the New York Times bestselling author of The Signal and the Noise, the definitive guide to our era of risk-and the players raising the stakes
In the bestselling The Signal and the Noise, Nate Silver showed how forecasting would define the age of Big Data. Now, in this timely and riveting new book, Silver investigates "The River," or those whose mastery of risk allows them to shape-and dominate-so much of modern life.
These professional risk takers-poker players and hedge fund managers, crypto true-believers and blue-chip art collectors-can teach us much about navigating the uncertainty of the 21st century. By embedding within these worlds, Silver offers insight into a range of issues that affect us all, from the frontiers of finance to the future of AI.
The River has increasing amounts of wealth and power in our society, and understanding their mindset-including the flaws in their thinking-is key to understanding what drives technology and the global economy today. There are certain commonalities in this otherwise diverse group: high tolerance for risk; appreciation of uncertainty; affinity for numbers; skill at de-coupling; self-reliance and a distrust of the conventional wisdom. For the River, complexity is baked in, and the work is how to navigate it, without going beyond the pale.
Taking us behind-the-scenes from casinos to venture capital firms to meetings of the effective altruism movement, On the Edge is a deeply-reported, all-access journey into a hidden world of powerbrokers and risk takers.

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Ashild Kolas, "On the Margins of Tibet: Cultural Survival on the Sino-Tibetan Frontier "
English | ISBN: 0295984813 | 2004 | 288 pages | EPUB | 3 MB
Open-access edition: DOI 10.6069/9780295804101

The state of Tibetan culture within contemporary China is a highly politicized topic on which reliable information is rare. But what is Tibetan culture and how should it be developed or preserved? The Chinese authorities and the Tibetans in exile present conflicting views on almost every aspect of Tibetan cultural life.
Ashild Kolas and Monika Thowsen have gathered an astounding array of data to quantify Tibetan cultural activities―involving Tibetan language, literature, visual arts, museums, performing arts, festivals, and religion. Their study is based on fieldwork and interviews conducted in the ethnic Tibetan areas surrounding the Tibetan Autonomous Region―parts of the Chinese provinces of Sichuan, Gansu, Yunnan, and Qinghai. Aware of the ambiguous nature of information collected in restricted circumstances, they make every effort to present a complete and unbiased picture of Tibetan communities living on China's western frontiers.
Kolas and Thowsen investigate the present conditions of Tibetan cultural life and cultural expression, providing a wealth of detailed information on topics such as the number of restored monasteries and nunneries and the number of monks, nuns, and tulkus (reincarnated lamas) affiliated with them; sources of funding for monastic reconstruction and financial support of clerics; types of religious ceremonies being practiced; the content of monastic and secular education; school attendance; educational curriculum and funding; the role of language in Tibetan schools; and Tibetan news and cultural media.
On the Margins of Tibet will be of interest to historians and social scientists studying modern China and Tibetan culture, and to the many others concerned about Tibet's place in the world.
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Onboarding Success: Your Guide to a Smooth Transition by bright days
English | October 31, 2024 | ISBN: N/A | ASIN: B0DLN3189W | 83 pages | EPUB | 0.58 Mb
Onboarding is a critical phase in an employee's journey within an organization, serving as the bridge between recruitment and full integration into the workplace. A well-structured onboarding process not only equips new hires with the necessary tools and knowledge to perform their roles effectively but also fosters a sense of belonging and engagement from the outset. This foundational period sets the tone for future job satisfaction and performance, making it essential for organizations to invest in comprehensive onboarding programs that address various aspects of the new employee experience.

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Teresa Hayter, "Open Borders - Second Edition: The Case Against Immigration Controls"
English | 2004 | pages: 226 | ISBN: 0745322441, 0745315429 | PDF | 0,9 mb
In this new edition of Open Borders, Teresa Hayter assesses the impact of the increasing severity of border controls since they were first introduced and makes the controversial case for their abolition. Hayter focuses on postwar immigration controls, especially the use of such controls against the peoples of former European colonies and East Europeans, and their effects on asylum seekers. She examines the recent history of European coordination of border controls and the notion of 'Fortress Europe'. Hayter argues that the existence of controls leads to great suffering and abuse of human rights, and that immigration controls are racist and help legitimate racism. She demonstrates that immigration controls have actually had a limited impact on controlling numbers. To illustrate her arguments, she draws on empirical material, especially from Britain in the 1980s and 1990s, relating in particular to the use of detention, arbitrary decision-making and the denial of benefits. She compares British government policies with policies elsewhere in Europe and calls for the free movement of people and the abolition of border controls. The new edition brings this seminal work up to date with a lengthy preface exploring how the practices of the British government over the past few years has continued the process Hayter outlines in the main text - of abusive and irrational border controls and the criminalisation of entire communities. This second edition also updates the bibliography and list of campaigning groups, and ends with a new manifesto for a world without borders, declaring 'no one is illegal!'

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Operator Theory and Boundary Eigenvalue Problems: International Workshop in Vienna, July 27-30, 1993 By Daniel Alpay, Marek Rakowski (auth.), I. Gohberg, H. Langer (eds.)
1995 | 316 Pages | ISBN: 3034899092 | PDF | 8 MB
The Workshop on Operator Theory and Boundary Eigenvalue Problems was held at the Technical University, Vienna, Austria, July 27 to 30, 1993. It was the seventh workshop in the series of IWOTA (International Workshops on Operator Theory and Applications). The main topics at the workshop were interpolation problems and analytic matrix functions, operator theory in spaces with indefinite scalar products, boundary value problems for differential and functional-differential equations and systems theory and control. The workshop covered different aspects, starting with abstract operator theory up to contrete applications. The papers in these proceedings provide an accurate cross section of the lectures presented at the workshop. This book will be of interest to a wide group of pure and applied mathematicians.

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Opportunistic Networks: Concepts and Systems by Anna Förster, Pietro Manzoni, Enrique Hernández Orallo
English | March 12, 2024 | ISBN: 3031478657 | 212 pages | MOBI | 7.64 Mb
This textbook provides an exhaustive exploration of Opportunistic Networks (OppNets). Divided into three parts, it starts with the foundational principles and metrics of OppNets, detailing their mobility and data dissemination. Significant focus is given to the security challenges faced by OppNets, including strategies to counter various attacks. The second part evaluates OppNets, introducing methods and metrics for assessment, theoretical and simulation models, and tools such as OMNeT++, The ONE and ns-3.

This textbook also offers comparative analyses and discussions on benchmarking. The third part delves into the implementation of OppNets, discussing technologies from Mobile Ad Hoc Networks to satellite communication and their integration with cellular technologies like 4G, 5G and 6G. Detailed insight into device characterization reveals the potential and limitations of devices within OppNets. Practical applications of OppNets in scenarios such as disaster management, remotecommunication, IoT challenges, smart cities and satellite networks are presented as well. Through detailed discussions and case studies, readers gain a comprehensive understanding of the structure, operation and practical implications of OppNets. It equips readers with knowledge to appreciate the vast potential of OppNets in various applications and settings.
This textbook targets advanced-level students and postdocs in computer science and electrical engineering as well as researchers, who are starting new in the area and need a comprehensive view of opportunistic networks. Practitioners who are interested in applying the concepts of opportunistic networks in their products and services, and would like to have a jump start into the development and applications of opportunistic networks will also want to purchase this book as a reference.

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Optimal Design and Control: Proceedings of the Workshop on Optimal Design and Control Blacksburg, Virginia April 8-9, 1994 By Natalia Alexandrov, J. E. Dennis Jr. (auth.), Jeffrey Borggaard, John Burkardt, Max Gunzburger, Janet Peterson (eds.)
1995 | 288 Pages | ISBN: 1461269164 | PDF | 7 MB
This volume is the proceedings of the Workshop on Optimal Design and Control that was held in Blacksburg, Virginia, April 8-9, 1994. The workshop was spon sored by the Air Force Office of Scientific Research through the Air Force Center for Optimal Design and Control (CODAC) at Virginia Tech. The workshop was a gathering of engineers and mathematicians actively in volved in innovative research in control and optimization, with emphasis placed on problems governed by partial differential equations. The interdisciplinary nature of the workshop and the wide range of subdisciplines represented by the partici pants enabled an exchange of valuable information and also led to significant dis cussions about multidisciplinary optimization issues. One of the goals of the work shop was to include laboratory, industrial, and academic researchers so that anal yses, algorithms, implementations, and applications could all be well-represented in the talks; this interdisciplinary nature is reflected in these proceedings. An overriding impression that can be gleaned from the papers in this volume is the complexity of problems addressed by not only those authors engaged in appli cations, but also by those engaged in algorithmic development and even mathemat ical analyses. Thus, in many instances, systematic approaches using fully nonlin ear constraint equations are routinely used to solve control and optimization prob lems, in some cases replacing ad-hoc or empirically based procedures.

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Optimizing Air Pollution Control Equipment Performance: Operation and Maintenance
English | 2025 | ISBN: 1394288654 | 321 Pages | PDF, EPUB (True) | 10.5 MB
Optimizing Air Pollution Control Equipment Performance delivers an analysis of the subject of air pollution control equipment from the perspective of the practicing engineer or an applied scientist, rather than a theoretical perspective.

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OTFS Modulation: Theory and Applications
English | 2024 | ISBN: 1119984181 | 435 Pages | EPUB (True) | 49 MB
Research and development are already underway on the sixth generation (6G) of wireless communication technology. The new requirements of 6G that arise from challenging new use cases render physical layer waveforms such as CDMA and OFDM inadequate. The OTFS waveform answers these new requirements, and recent research suggests it will play a decisive role in the future of wireless communication.

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Out of the Box: A one-stop guide to navigating neurodivergence
by Rebecca Sparrow, Madonna King
English | 2025 | ISBN: 0702268771 | 304 Pages | True ePUB | 0.61 MB

An increasing number of Australian children are being diagnosed with variations in their brain development. These can include attention deficit hyperactivity disorder (ADHD), autism and dyslexia. Authors Madonna King and Rebecca Sparrow have surveyed and interviewed almost 2000 Australians - including medical experts, educators, neurodivergent children and their parents - to gather together the best and most useful tips to ensure neurodivergent children take their rightful place in classrooms and beyond. Out of the Box offers best-practice advice on navigating diagnosis and ongoing challenges, such as finding friends and learning at school. It also provides vital advice for teens, including driving, living independently and applying for jobs. This essential guide provides hope, insight and practical help for the neurodivergent child' s journey and the parents, teachers, friends and family who share it.

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Owls of Europe: Biology, Identification and Conservation by Wolfgang Scherzinger, Theodor Mebs
English | February 4th, 2025 | ISBN: 1399410792 | 417 pages | True PDF | 82.13 MB
An essential compendium on the biology, identification, distribution and conservation of Europe's 13 species of owls.

Owls are fascinating birds, with remarkable adaptations for their lives as nocturnal hunters. Covering the 13 species of owls that occur across the continent, Owls of Europe features detailed drawings of typical positions, behaviours and facial expressions, alongside more than 300 photos selected to demonstrate age and subspecific variation, colour phases and the birds in flight.
This book includes up-to-date distribution maps and the latest European population estimates, along with detailed text on behaviour, voice, brood biology and juvenile development, life strategies, hunting techniques, choice of prey and habitat requirements for each species. It also explores human interactions with owls, from the threats posed to determined conservation efforts.
Owls of Europe is an essential book for birdwatchers, professional ornithologists and those who simply love owls.

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Oxford Resources for IB DP Physics: Study Guide, 2023 Edition
by Tim Kirk
English | 2023 | ISBN: 1382016697 | 220 Pages | Image PDF | 109 MB

An accessible, student-friendly resource fully aligned to and focused on the knowledge contents of the 2023 DP Physics subject guide. This Study Guide is designed to help students focus on crucial concepts and skills for use alongside the Course Book.

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DR. Elisabeth Berry Drago, "Painted Alchemists: Early Modern Artistry and Experiment in the Work of Thomas Wijck "
English | ISBN: 9462986495 | 2019 | 320 pages | PDF | 3 MB
Thomas Wijck's painted alchemical laboratories were celebrated in his day as "artful" and "ingenious." They fell into obscurity along with their subject, as alchemy came to be viewed as an occult art or a fool's errand. But these unusual pictures challenge our understanding of early modern alchemy-and of the deeper relationship between chemical workshops and the artists who represented them. The work of artists, like the work of alchemists, contained intellectual-creative and manual-material aspects. Both alchemists and artists claimed a special status owing to their creative powers. Wijck's formation of an artistic and professional identity around alchemical themes reveals his desire to explore this curious territory, and ultimately to demonstrate art's superior claims to knowledge and mastery over nature. This book explores one artist's transformation of alchemy and its materials into a reputation for virtuosity-and what his work can teach us about the experimental early modern world.

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