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Author : Yohannes Gebre Michael,Ann Waters-Bayer
Publisher : IIED
Page : 38 pages
File Size : 50,9 Mb
Release : 2007
Category : Arid regions
ISBN : 9781843696612
Author : Anonim
Publisher : Unknown
Page : 408 pages
File Size : 52,5 Mb
Release : 2009
Category : Trees
ISBN : UCBK:C099027922
Author : Tandy Warnow
Publisher : Springer
Page : 410 pages
File Size : 48,9 Mb
Release : 2019-04-08
Category : Computers
ISBN : 9783030108373
This volume presents a compelling collection of state-of-the-art work in algorithmic computational biology, honoring the legacy of Professor Bernard M.E. Moret in this field. Reflecting the wide-ranging influences of Prof. Moret’s research, the coverage encompasses such areas as phylogenetic tree and network estimation, genome rearrangements, cancer phylogeny, species trees, divide-and-conquer strategies, and integer linear programming. Each self-contained chapter provides an introduction to a cutting-edge problem of particular computational and mathematical interest. Topics and features: addresses the challenges in developing accurate and efficient software for the NP-hard maximum likelihood phylogeny estimation problem; describes the inference of species trees, covering strategies to scale phylogeny estimation methods to large datasets, and the construction of taxonomic supertrees; discusses the inference of ultrametric distances from additive distance matrices, and the inference of ancestral genomes under genome rearrangement events; reviews different techniques for inferring evolutionary histories in cancer, from the use of chromosomal rearrangements to tumor phylogenetics approaches; examines problems in phylogenetic networks, including questions relating to discrete mathematics, and issues of statistical estimation; highlights how evolution can provide a framework within which to understand comparative and functional genomics; provides an introduction to Integer Linear Programming and its use in computational biology, including its use for solving the Traveling Salesman Problem. Offering an invaluable source of insights for computer scientists, applied mathematicians, and statisticians, this illuminating volume will also prove useful for graduate courses on computational biology and bioinformatics.
Author : Clifford, Frank
Publisher : Crown
Page : 290 pages
File Size : 49,5 Mb
Release : 2003-05-13
Category : History
ISBN : 9780767907026
In recent years, Los Angeles Times writer and editor Frank Clifford has journeyed along the Continental Divide, the hemispheric watershed that spans North America from the alkali badlands of southernmost New Mexico to the roof of the Rockies in Montana and into Canada. The result is The Backbone of the World, an arresting exploration of America’s longest wilderness corridor, a harsh and unforgiving region inhabited by men and women whose way of life is as imperiled as the neighboring wildlife. With the brutal beauty and stark cadences of a Cormac McCarthy novel, The Backbone of the World tells the story of the last remnants of the Old West, America’s mythic landscape, where past and present are barely discernible from one another and where people’s lives are still intrinsically linked to their natural surroundings. Clifford vividly captures the challenges of life along the Divide today through portraits of memorable characters: a ranching family whose isolated New Mexico homestead has become a mecca for illegal immigrants and drug smugglers; a sheep herder struggling to make a living tending his flock in the mountains above Vail, Colorado: an old mule packer who has spent years scouring the mountains of northwest Wyoming for the downed plane of his son; a Yellowstone Park ranger on a lone crusade to protect elk and grizzly bears from illegal hunters; and a group of Blackfeet Indians in northern Montana who are fearful that a wilderness sanctuary will be lost to oil and gas development. In each of their stories, the tide of change is looming as environmental, economic, social, and political forces threaten this uniquely unfettered population. Clifford’s participatory approach offers a haunting and immediate evocation of character and geography and an unsentimental eulogy to the people whose disappearance will sever a link with the defining American pioneer spirit. Set in a world of isolated ranches, trail camps, mountain bivouacs, and forgotten hamlets, The Backbone of the World highlights the frontier values that have both ennobled and degraded us, values that symbolize the last breath of our founding character.
Author : Cape of Good Hope (Colony). Dept. of Agriculture
Publisher : Unknown
Page : 186 pages
File Size : 47,5 Mb
Release : 1896
Category : Agriculture
ISBN : PSU:000053200983
Author : Suzanne Simard
Publisher : Penguin
Page : 383 pages
File Size : 55,8 Mb
Release : 2021-05-04
Category : Science
ISBN : 9780735237766
INSTANT NATIONAL BESTSELLER NEW YORK TIMES BESTSELLER *WINNER of the 2021 Banff Mountain Book Prize in Mountain Environment and Natural History* *WINNER of the National Outdoor Book Award for Natural History Literature* *SHORTLISTED for the 2022 BC and Yukon Hubert Evans Non-Fiction Book Prize* *SHORTLISTED for the 2022 BC and Yukon Bill Duthie Booksellers’ Choice Award* *SHORTLISTED for the 2021 Science Writers and Communicators of Canada Book Award* A world-leading expert shares her amazing story of discovering the communication that exists between trees, and shares her own story of family and grief. Suzanne Simard is a pioneer on the frontier of plant communication and intelligence; she’s been compared to Rachel Carson, hailed as a scientist who conveys complex, technical ideas in a way that is dazzling and profound. Her work has influenced filmmakers (the Tree of Souls in James Cameron’s Avatar), and her TED talks have been viewed by more than 10 million people worldwide. Now, in her first book, Simard brings us into her world, the intimate world of the trees, in which she brilliantly illuminates the fascinating and vital truths—that trees are not simply the source of timber or pulp but are a complicated, interdependent circle of life; that forests are social, cooperative creatures connected through underground networks by which trees communicate their vitality and vulnerabilities with communal lives not that different from our own. Simard describes up close—in revealing and accessible ways—how trees, living side by side for hundreds of years, have evolved; how they perceive one another, learn and adapt their behaviors, recognize neighbors, and remember the past; how they have agency about their future; how they elicit warnings and mount defenses, compete and cooperate with one another with sophistication: characteristics previously ascribed to human intelligence, traits that are the essence of civil societies. And, at the center of it all, the Mother Trees: the mysterious, powerful forces that connect and sustain the others that surround them.Simard, born and raised in the rain forests of British Columbia, spent her days as a child cataloging the trees from the forest; she came to love and respect them and embarked on a journey of discovery and struggle. Her powerful story is one of love and loss, of observation and change, of risk and reward. And it is a testament to how deeply human scientific inquiry exists beyond data and technology: it’s about understanding who we are and our place in the world. In her book, as in her groundbreaking research, Simard proves the true connectedness of the Mother Tree to the forest, nurturing it in the profound ways that families and humansocieties nurture one another, and how these inseparable bonds enable all our survival.
Author : Pushpendra K. karhana
Publisher : Arihant Publications India limited
Page : 686 pages
File Size : 44,8 Mb
Release : 2020-04-26
Category : Electronic
ISBN : 9789324197054
India, being an agrarian society, has always regarded agriculture as the back-bone of her economy. Time and again, the agriculture sector has highlighted its importance by contribution towards the overall growth of the whole nation. Agricultural science is a broad multidisciplinary field of biology that encompasses the parts of exact, natural, economic and social sciences that are used in the practice and understanding of agriculture. As the book name suggests “Master Guide Agriculture Science” covering various sections viz. Principle of Crop Production, Gardening Science, Soil Science, Soil Fertility and Fertilizers, Agricultural Economics, Genetics of Plant Breeding, Plant Pathology and Entomology, etc. The study guide provides the complete syllabus into 8 Units in total that are further divided into 22 Chapters giving complete theory in Chapterwise manner, sufficient number of MCQs has been incorporated in each chapter. Apart from theory stuff this book also concentrates on the practice part providing Latest question papers of various exams. The book will be equally useful for UPSC, State PSCs, ARS, JRF, NET & BHU which covers the subject of Agriculture Science. As the book contains ample number study as well as practice material, it for sure will help the aspirants score high in the upcoming examinations. TABLE OF CONTENT UNIT– 1: agriculture Science, UINIT– 2: Gardening, UNIT– 3: Genetics and Plant Breeding, UNIT– 4: Soil Science and Fertility and Fertilizers, UNIT– 5: Plant Pathology and Entomology, UNIT– 6: Agriculture Extensions and Agricultural Economics, UNIT– 7: Agricultural Statistics, UNIT– 8: Animal Science and Dairy Science, Glossary, Question Papers: FSO Food Safety Officer Exam 2019, AAO Assistant Agriculture Officer Exam 2018, BHU MSc. Agriculture Entrance Exam 2017.
Author : Jan Kratochvil
Publisher : Springer
Page : 426 pages
File Size : 45,7 Mb
Release : 2003-06-26
Category : Computers
ISBN : 9783540466482
The range of issues considered in graph drawing includes algorithms, graph theory, geometry, topology, order theory, graphic languages, perception, app- cations, and practical systems. Much research is motivated by applications to systems for viewing and interacting with graphs. The interaction between th- retical advances and implemented solutions is an important part of the graph drawing eld. The annually organized graph drawing symposium is a forum for researchers, practitioners, developers, and users working on all aspects of graph visualization and representations. The preceding symposia were held in M- treal (GD’98), Rome (GD’97), Berkeley (GD’96), Passau (GD’95), Princeton (GD’94), and Paris (GD’93). The Seventh International Symposium on Graph Drawing GD’99 was or- nized at Sti r n Castle, in the vicinity of Prague, Czech Republic. This baroque castle recently restored as a hotel and conference center provided a secluded place for the participants, who made good use of the working atmosphere of the conference. In total the symposium had 83 registered participants from 16 countries.
Author : Wenpan Dong,Lianming Gao,Peter Poczai,Chao Xu,Yu Song
Publisher : Frontiers Media SA
Page : 133 pages
File Size : 55,5 Mb
Release : 2023-06-23
Category : Science
ISBN : 9782832527245
Author : Stefan Wanke,Susann Wicke
Publisher : Frontiers Media SA
Page : 233 pages
File Size : 54,6 Mb
Release : 2023-11-15
Category : Science
ISBN : 9782832538999
Phylogenetics often uncovers contradicting hypotheses regarding the relationships within the same group of organisms, a phenomenon known since the beginning of the molecular systematics era. While, historically, single marker-based analyses produced discordance, nowadays entire cellular genomes or portions of the same genomic compartment conflict with others or the rest, respectively. In contrast to the beginning of the molecular systematics era, when adding markers and taxa offered a way out of systematic errors, genome inference-based incongruences cannot be addressed and explained easily. Disagreeing phylogenomic hypotheses might originate from various evolutionary processes, including but not limited to hybridization or incomplete lineage sorting, thereby leading to gene tree-versus species tree-associated discrepancies. Today, this can be expanded to genome discordance, where phylogenomic signals of organellar genomes (plastid, mitochondrial) and the nuclear genome disagree due to intrinsically different coalescent paths or phenomena like organelle capture.
Author : Srinivas Aluru
Publisher : CRC Press
Page : 1108 pages
File Size : 47,6 Mb
Release : 2005-12-21
Category : Computers
ISBN : 9781420036275
The enormous complexity of biological systems at the molecular level must be answered with powerful computational methods. Computational biology is a young field, but has seen rapid growth and advancement over the past few decades. Surveying the progress made in this multidisciplinary field, the Handbook of Computational Molecular Biology of
Author : Petr Kolman,Jan Kratochvíl
Publisher : Springer Science & Business Media
Page : 355 pages
File Size : 50,9 Mb
Release : 2011-12-02
Category : Computers
ISBN : 9783642258695
This book constitutes the revised selected papers of the 37th International Workshop on Graph-Theoretic Concepts in Computer Science, WG 2011, held at Teplá Monastery, Czech Republic, in June 2011. The 28 revised papers presented were carefully reviewed and selected from 52 submissions. The workshop aims at merging theory and practice by demonstrating how concepts from graph theory can be applied to various areas in computer science, and by extracting new graph theoretic problems from applications.
Author : Ontario. Bureau of Forestry
Publisher : Unknown
Page : 1002 pages
File Size : 50,9 Mb
Release : 1882
Category : Forests and forestry
ISBN : UOM:39015069642950
Author : Ontario. Legislative Assembly
Publisher : Unknown
Page : 1068 pages
File Size : 54,9 Mb
Release : 1883
Category : Ontario
ISBN : UOM:39015068516957
Author : Skye Alexander
Publisher : Simon and Schuster
Page : 304 pages
File Size : 43,8 Mb
Release : 2014-07-31
Category : Body, Mind & Spirit
ISBN : 9781440580024
Provides information on creating a sacred space, promoting good energy, and creating incantations, potions, and charms.
