Название: Руководство к определению сорных растений СССР. В 4-х томах
Автор: Келлера Б.А.
Издательство: Академия наук СССР
Год: 1934-1935
Страниц: 324 + 244 + 448 + 414 с иллюстрациями
Формат: djvu
Размер: 18,52 мб
Качество: хорошее
Язык: русский

Основная цель настоящего издания дать систематический определитель и точное описание всех сорных растений, произрастающих на территории СССР и засоряющих всевозможные культуры. Даются также более подробные описания семян, плодов и всходов сорняков, краткая биологическая характеристика, преимущественно в отношении размножения, сведения об использовании сорных растений и меры борьбы с ними. В целях облегчения определения видов сорных растений в тексте имеется довольно большое число рисунков как цельных растений, так и плодов, семян и всходов.

Название: Theoretical Astrophysics, Volumes 1-3
Автор: T. Padmanabhan
Издательство: Cambridge University Press
Год: 2000
Формат: djvu
Страниц: 622 / 580 / 625
Размер: 24,9 Мб
Язык: английский

Graduate students and researchers in astrophysics and cosmology need a solid grasp of a wide range of physical processes. This authoritative textbook helps readers develop the necessary toolkit of theory. The book is modular in design, allowing the reader to pick and chose a selection of chapters, if necessary. After reviewing the basics of dynamics, electromagnetic theory, and statistical physics, the book carefully develops a solid understanding of radiative processes, spectra, fluid mechanics, plasma physics and MHD, dynamics of gravitating systems, general relativity, nuclear physics, and other key concepts. Throughout, the reader's understanding is developed and tested with problems and helpful hints. This welcome volume provides graduate students with an indispensable introduction to and reference on all the physical processes they will need to successfully tackle cutting-edge research in astrophysics and cosmology. It can be used alone or in conjunction with two companion volumes, which cover stars and stellar systems, and galaxies and cosmology.

Название: Calculus Workbook For Dummies
Автор: Mark Ryan
Издательство: Wiley
Год: 2005
Формат: pdf
Страниц: 308
Размер: 11,0 Мб
Язык: английский


From differentiation to integration - solve problems with ease
Got a grasp on the terms and concepts you need to know, but get lost halfway through a problem or, worse yet, not know where to begin? Have no fear! This hands-on guide focuses on helping you solve the many types of calculus problems you encounter in a focused, step-by-step manner. With just enough refresher explanations before each set of problems, you'll sharpen your skills and improve your performance. You'll see how to work with limits, continuity, curve-sketching, natural logarithms, derivatives, integrals, infinite series, and more!

Название: Differential Equations Workbook For Dummies
Автор: Steven Holzner
Издательство: Wiley
Год: 2009
Формат: pdf
Страниц: 315
Размер: 11,6 Мб
Язык: английский


Pre-calculus classes prepare students for studies in calculus and other advanced Differential equations are essential in physics, economics, engineering, and many other scientific and technical disciplines. This new Dummies Workbook is a hands-on companion for students grappling with differential equations in classes such as calculus, AP calculus, physics, and engineering. It features numerous practice exercises and clear, concise examples to help students improve their problem-solving skills and score better in science, math, and standardized tests. This practice-oriented workbook covers such challenging topics as first-order and second-order differential equations, constant coefficients, undetermined coefficients, variation of parameters, initial-value problems, the Laplace transform, and more.

Название: Строение клетки. Атлас-раскраска
Автор: Светлана Бозрова
Издательство: АСТ
Год: 2025
Формат: pdf
Страниц: 114
Размер: 68,32 Мб
Язык: русский

«Строение клетки» – уникальное научно-популярное пособие, которое расскажет о клеточной теории, основных типах клеток и их строении, а также о роли различных клеточных структур в процессах жизнедеятельности клетки. В «Атласе-раскраске» представлено более 140 детализированных контурных иллюстраций, наглядно показывающих сложные биологические процессы и способствующих лучшему усвоению материала. Особое внимание уделяется словарю биологических терминов, где автор доступным языком объясняет сложные понятия.

Название: Яды. Между жизнью и смертью
Автор(ы): Стоянова Элина
Издательство: МИФ
Год: 2025
Страниц: 176
Формат: fb2, pdf, epub
Размер: 11 Мб
Язык: русский

Парадоксально, но с древнейших времен яды — верные спутники человечества. Они осмысляются в мифах, используются в борьбе за власть, без них невозможны и архаические обряды, и медицина будущего. Яды — это источник гибели и спасения. Жизнь и смерть. Ведь все определяет лишь доза.

Название: Mechanism and Theory in Organic Chemistry, 3rd Edition (+ Answer Book)
Автор: Thomas H. Lowry, Kathleen Schueller Richardson
Издательство: Harpercollins
Год: 1987
Формат: pdf
Страниц: 1091
Размер: 59,3 Мб
Язык: английский


A best-seller for the advanced physical organic chemistry course, the text uses organic mechanisms as the focal point for examining current research. The third edition also has an expanded discussion of electron transfer processes, including application of valence-bond configuration interaction and treatment of energy surface crossings in photochemical processes; improved treatment of chemically induced dynamic nuclear polarization (CIDNP); and a new appendix to Chapter 9 on electron spin resonance (ESR). The expanded discussion of molecular orbital theory includes an introduction to perturbation molecular orbital (PMO), and the material on nucleophilic substitution, photochemistry, and radicals has been extensively revised. End-of-chapter problems ranging in difficulty encourage further investigation of reactions. Appendices include transition state thermodynamics and isotrope effects.

Название: Introduction to Applied Nonlinear Dynamical Systems and Chaos
Серия: Texts in Applied Mathematics, 2
Автор: Stephen Wiggins
Издательство: Springer
Год: 2003
Формат: pdf
Страниц: 864
Размер: 12,3 Мб
Язык: английский

Mathematics is playing an ever more important role in the physical and biological sciences, provoking a blurring of boundaries between scientific disciplines and a resurgence of interest in the modern as well as the classical techniques of applied mathematics. This renewal of interest, both in - search and teaching, has led to the establishment of the series Texts in Applied Mathematics (TAM). The development of new courses is a natural consequence of a high level of excitement on the research frontier as newer techniques, such as nume- cal and symbolic computer systems, dynamical systems, and chaos, mix with and reinforce the traditional methods of applied mathematics. Thus, the purpose of this textbook series is to meet the current and future needs of these advances and to encourage the teaching of new courses. TAM will publish textbooks suitable for use in advanced undergraduate and beginning graduate courses, and will complement the Applied Mat- matical Sciences (AMS) series, whichwill focus on advanced textbooks and research-level monographs. Pasadena, California J.E. Marsden Providence, Rhode Island L. Sirovich College Park, Maryland S.S. Antman Preface to the Second Edition This edition contains a signi?cant amount of new material. The main r- son for this is that the subject of applied dynamical systems theory has seen explosive growth and expansion throughout the 1990s. Consequently, a student needs a much larger toolbox today in order to begin research on signi?cant problems.

Название: Species Conservation: Lessons from Islands (Ecology, Biodiversity and Conservation)
Автор: Jamieson A. Copsey
Издательство: Cambridge University Press
ISBN: 0521899397
Год: 2018
Формат: PDF
Страниц: 396
Размер: 66,2 МБ
Язык: Английский

This book brings together leading conservation practitioners to reflect on their response to the current global biodiversity crisis, through the lens of island species recovery and management. Initial chapters cover the biological understanding of small population biology and the growing threat of invasive species, while subsequent chapters discuss the management of these threats and the complexity of leading projects within a dynamic and still relatively unknown system.

Название: Elements of Ecology, Global Edition
Автор: Robert Leo Smith, Thomas M. Smith
Издательство: Pearson
ISBN: 1292077409
Год: 2015
Формат: PDF
Страниц: 704
Размер: 64,2 МБ
Язык: Английский

Elements of Ecology, Ninth Edition continues to explain ecological processes clearly and concisely, with a greater emphasis on the relevance of ecology to everyday life and the human impact on ecosystems. This dramatically revised edition discusses issues of human ecology throughout the text and provides a greater variety of opportunities for students to learn, practice, and develop quantitative and analytical skills.