Thư viện số
Giáo trình, tài liệu tham khảo và tài nguyên học tập mở.
Nguồn ngoài
General Biology Laboratory Booklet
Martilias Farrell · The Pennsylvania Alliance for Design of Open Textbooks (PA-ADOPT) · 2025
This laboratory manual provides a diverse collection of experiments designed to immerse students in techniques mirroring those used in professional biomedical research. Students will explore fundamental enzyme kinetics, investigating how varying amylase concentrations and the introduction of chemical modifiers influence starch digestion rates. These labs emphasize quantitative analysis through colorimetric assays and densitometry using ImageJ software. The booklet also features studies with planaria, where students will assess how common substances affect locomotor activity and screen compounds for their impact on the remarkable regenerative abilities of these organisms, including generating concentration-effect curves. Additional activities guide students in using microscopy to observe microscopic life. Throughout these hands-on investigations, students will develop and refine crucial laboratory skills such as preparing serial dilutions, mastering precise pipetting techniques, and maintaining detailed, reproducible laboratory notebooks, thereby building a robust foundation in experimental design, data analysis, and the scientific method.
Nguồn ngoài
Environmental Geology
Steve Earle · Thompson Rivers University · 2021
Environmental Geology is a comprehensive, up-to-date textbook for college-level courses on the environmental aspects of Earth Science. It covers Earth systems, climate change, glaciation, natural hazards like earthquakes and floods, and essential resources such as water, energy, and metals. Richly illustrated with embedded exercises—some interactive—it engages students as they explore key geological processes and their environmental impacts.
Nguồn ngoài
Exploring Weather and Climate
Glen Sampson · Glen Sampson · 2025
This textbook is oriented toward a first or second year college science class, or an advanced high school course. Sixteen chapters are present which fits a 16-week college semester. These chapters may be divided into three sections: 1. Atmospheric processes including structure, composition, energy balance, pressure forces, moisture, stability, and precipitation processes in Chapters 1 through 5. 2. Weather systems including global circulation, tropical and extratropical cyclones, thunderstorms, tornadoes, atmospheric optics, and weather forecasting in Chapters 6 through 10. 3. Climate topics including classification, human influences on the atmosphere, natural climate variability, paleoclimate, climate change due to anthropogenic influences, climate projections, and a changing climate’s affect on extreme weather in Chapters 11 through 16.
Nguồn ngoài
Principles of Cultivar Development
Walter Fehr; Walter Suza · Iowa State University Digital Press · 2025
Principles of Cultivar Development is intended to help you learn how to be a successful manager of a cultivar development program. In this text, you will apply the principles learned in Plant Breeding Methods to design a breeding program that makes effective use of available resources and alternative breeding strategies. By the end of this volume, readers will be able to describe the process for developing clonal, pure-line, hybrid, and synthetic cultivars. Each chapter includes additional readings and examples of how breeders have implemented the concepts in their breeding programs.
Nguồn ngoài
Bacterial Genomes
Aswin Seshasayee · Open Book Publishers · 2025
Microbes form the “unseen majority” of life on Earth, with bacteria at the forefront as both the architects of life’s chemical foundations and agents of disease. But their story is far more complex. Bacteria thrive in diverse and extreme environments, driven by the dynamic evolution of their genomes. These tiny organisms wield an extraordinary ability to adapt, balancing genetic changes across generations with rapid physiological responses to environmental shifts. In Bacterial Genomes, the evolutionary and regulatory processes that shape bacterial life are brought to life. This textbook offers a conceptual exploration of how bacterial genomes are organized, how they evolve, and how their genetic information is interpreted through intricate molecular networks. Drawing on both cutting-edge research and the historical milestones that shaped microbiology, it illuminates how bacteria navigate the intersection of genetic adaptation and ecological resilience. Designed for college students, interdisciplinary researchers, and even the determined amateur, Aswin Seshasayee moves beyond technical jargon to provide a thought-provoking synthesis of bacterial evolution and adaptation. Unlike traditional genomics texts, this book blends historical insights with contemporary discoveries, offering a fresh perspective on the role of bacteria in shaping the living world.
Nguồn ngoài
Atomic Physics for Everyone: An Introduction to Atomic Physics, Quantum Mechanics, and Precision Spectroscopy with No College-Level Prerequisites
Will Raven · Springer · 2025
This open access textbook introduces beginning undergraduate students and high school students to the world of quantum mechanics and atomic spectroscopy. Requiring no previous knowledge of physics and no math beyond basic algebra and sines and cosines, this book focuses on concepts to make the excitement of atomic physics more accessible for learners than ever before. It comes replete with learning goals, exercises and solutions, and an optional experimental component, making this text readily adoptable for both the classroom and the undergraduate lab. The book takes the reader on a lively and engaging tour through topics at the forefront of current science, including photons, quantum numbers, atomic energy levels, some different spectroscopy techniques, electronic structure, atomic notation, angular momentum, hyperfine structure, isotope shifts, the strong force, an introduction to the Standard Model of Particle Physics, and more.
Nguồn ngoài
Semiconductor Physics: Theory and Experiments. With applications to Diode, Light Emitting Diode, Transistor, and Solar Cell
Sven Tougaard · Zenodo · 2023
In 2005, I was asked to give a course in semiconductor physics for physics and engineering students that includes both theory and experiments. I could not find a textbook that met the constraints for the course which was a 4th semester course in semiconductor physics for physics and engineering students some of them with no knowledge of statistical mechanics. Existing textbooks are either too simplistic and do not include a comprehensive physical model description of semiconductors which must include a basic amount of both statistical mechanics, quantum mechanics, and solid-state physics. Alternative textbooks are way too lengthy to fit in a 4th semester course of maximum 5 ECTS length and don’t include experiments. I therefore started to develop a course where only the essential elements of the underlying theory is included. But still keeping the basic physical description of the phenomena at a sober level. So, this is a comprehensive short introductory course and includes both theory and experiments, but it does not substitute for an advanced semiconductor physics course. It is also noted that this course does not include the MOSFET transistor.
Nguồn ngoài
Introduction to Behavioral Neuroscience
Elizabeth Kirby; Melissa Glenn; Noah Sandstrom; Christina Williams · OpenStax · 2024
Introduction to Behavioral Neuroscience aligns to the topics and objectives of introductory behavioral neuroscience courses taught in psychology, biology, neuroscience, and similar departments. This offering is intended for undergraduates with no presumed college-level science coursework, and presents the foundational principles of brain-behavior-environment interactions. In Introduction to Behavioral Neuroscience, students will begin to understand how the physiology of the nervous system and the environment dictate our movements, thoughts and feelings. Students will be challenged to think about real neuroscience experiments, appreciate how neuroscience knowledge evolves over time, and consider open questions in the field. They will also be invited to learn about the people behind the science, such as through interview videos and researcher profiles.
Nguồn ngoài
Environmental Justice
Deron Carter; Colleen Sanders · Open Oregon Educational Resources · 2023
This book presents the original works of Environmental Justice students from Linn-Benton Community College. Students select and design projects based on their experiences and interests to contribute to this living anthology each term. The goal of this publication is to increase the impact of student scholarship, research, creativity, and activism to work for environmental and social justice in our communities. These openly-licensed works span multiple formats and genres based on student interest.
Nguồn ngoài
Understanding Organisms: An Evolutionary, Ecological and Comparative Approach
Thea Popolizio · ROTEL · 2024
Understanding organisms—their evolution, ecology and body systems— is at the heart of this free and open resource geared toward introductory-level college biology majors. This text has been adapted and curated with a lens toward representation and inclusivity. Student engagement is encouraged through ample graphics, embedded media and linked supplementary resources throughout, as well as interactive, responsive H5P practice activities.
Nguồn ngoài
Plant Breeding Methods
Walter Fehr; Walter Suza · Iowa State University Digital Press · 2024
This text has been compiled to provide an overview of how plant breeders develop cultivars of plant species. The methods that breeders use depend directly on the type of cultivar used to produce a commercial crop. The four most common types of cultivars are (a) clonal cultivars (b) synthetic cultivars (c) pure-line cultivars and (d) hybrid cultivars. These types of cultivars will be discussed throughout the book, alongside review questions for self-study.
Nguồn ngoài
Introduction to Environmental Sciences and Sustainability
Emily Harris · University of West Florida Pressbooks · 2023
Introduction to Environmental Sciences and Sustainability is a college-level Open Educational Resource (OER) that focuses on the most relevant environmental science issues and addresses ways to incorporate sustainable practices. The text is designed for an introductory-level college science course. Topics include the fundamentals of ecology, biodiversity, pollution, climate change, food production, human population growth, and incorporating sustainable approaches in our communities, economies, and environments. This resource is targeted at environmental science students.
![Biological Psychology [Revised Edition]](/api/files/covers/otl-1626.webp)
Nguồn ngoài
Biological Psychology [Revised Edition]
Michael Hove; Steven Martinez · ROTEL · 2024
Biological psychology is the study of the biological bases of behavior and mental processes. It explores how biological factors like genes, hormones, neurotransmitters, and brain structures influence psychological components like thoughts, emotions, memories, and actions. This free and open textbook provides a wide ranging and up-to-date introduction to the main topics and methods of biological psychology.
Nguồn ngoài
Crop Adaptation and Improvement for Drought-Prone Environments
Ndjido Kane; Daniel Foncéka; Timothy Dalton · New Prairie Press · 2022
This book focuses on three important elements in the development of cereal and legume crops in semi-arid West Africa. The first section illustrates the socioeconomic factors that affect the food system for these crops and contains an overview of crop production and consumption in the region. Then, important inputs that affect system productivity are presented: preferences for new seed varieties, yield response to fertilizer, counterfeit herbicides, climate information, and the way farmers develop expectations about the weather events that shape cropping outcomes. The final chapter of section one is dedicated to understanding urban consumer preferences for processed food products derived from pearl millet. The second section addresses the state of the art of phenotyping and the modeling of crop adaptation to dryland farming systems. Chapters in section two focus on the regional network for phenotyping, high throughput phenotyping in field situations, root architectures, and crop ideotypes. In addition, empirical evidence is presented on root and soil interactions and the effectiveness of unmanned aerial vehicles (UAVs to assess sorghum physiology. Finally, the third section investigates the genetic diversity and improvement of dryland crops. Chapters in this section focus on biodiversity and agricultural system sustainability, orphan crops such as fonio, and the utilization of a regional germplasm collection in the improvement of cowpea, groundnut, pearl millet, and sorghum.
Nguồn ngoài
Experiences in Biodiversity Research: A Field Course
Thea Gessler · Iowa State University Digital Press · 2024
This handbook was developed to support the course, Experiences in Biodiversity Research, which exists to provide early undergraduates with experience in the practice of biodiversity research and demystify the path to careers in this field. Although this course is situated within Iowa State University, guidance for educators is provided throughout the handbook to support those interested in teaching similar courses at other universities.
Nguồn ngoài
Introduction to Soil Science
Amber Anderson; Rivka Fidel · Iowa State University Digital Press · 2025
This textbook introduces readers to introductory soil science topics including the physical, chemical, and biological properties of soils; soil formation, classification, and global distribution; soil health, soils and humanity, and sustainable land management. The second edition brings forward new information about soil water and soil chemistry alongside updates to the core chapters.
Nguồn ngoài
Organic Chemistry
John McMurry · OpenStax · 2023
John McMurry's Organic Chemistry is renowned as the most clearly written book available for organic chemistry. In John McMurry's words, "I wrote this book because I love writing. I get great pleasure and satisfaction from taking a complicated subject, turning it around until I see it clearly from a new angle, and then explaining it in simple words." In Organic Chemistry: A Tenth Edition from OpenStax, McMurry continues this tradition while updating scientific discoveries, highlighting new applications, scrutinizing every piece of art, and providing example problems to assist students. Organic Chemistry: A Tenth Edition continues to meet the scope and sequence of a two-semester organic chemistry course that follows a functional group approach. A highlighted list of changes along with a detailed table of contents and ancillary descriptions can be found on the Instructor and Student resources sections of this page. John McMurry decided to publish Organic Chemistry: A Tenth Edition under an open license as a tribute to his son, Peter McMurry, who passed away from cystic fibrosis in December 2019. Please click here to learn more about Peter's legacy and to support the fight against cystic fibrosis.
Nguồn ngoài
Climate Justice in Your Classroom
Alexandra Anderson-Frey; Brittany Johnson; Mikelle Nuwer; Luanne Thompson · University of Washington · 2023
As the inequitable impacts of climate change become more evident and destructive, it is essential for climate and environmental justice, as well as methods of civic engagement, to be taught at a high-level to college-level students. This book provides real examples of how professors at the University of Washington integrated these critical issues into their teachings, both in targeted lessons and as throughlines across an entire course. These samples of how environmental and climate justice have been successfully integrated into higher-level education can serve as both a record of the UW's progress towards centering JEDI at the heart of all students, and as a model for future instructors to use as they work to incorporate more aspects of justice and engagement into their own material.
Nguồn ngoài
Crop Improvement
Walter Suza; Kendall Lamkey · Iowa State University Digital Press · 2023
This textbook covers basic principles in the genetic improvement of crop plants. Emphasis is placed on methods of cultivar development in self-pollinating, cross-pollinating, and asexually propagating crops. Relevant examples of crop improvement research in Africa are utilized to cover factors affecting cultivar release, multiplication, and distribution of high-quality seed.
Nguồn ngoài
Rangeland Ecosystems of the Western US
Yvette Gibson · Oregon State University
Rangeland Ecosystems of the Western US conveys fundamentals of autecology and synecology and general information about the primary ecosystems covered. Its structure will provide a framework that can be applied to understand and analyze any arid shrubland, desert, or woodland savanna.