Thư viện số
Giáo trình, tài liệu tham khảo và tài nguyên học tập mở.

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
Introduction to Earth Science
Laura Neser · Virginia Tech Publishing · 2025
Introduction to Earth Science, Second Edition is an open textbook designed to provide a comprehensive introduction to Earth Science that can be freely accessed online, read offline, printed, or purchased as a print-on-demand book. It is intended for a typical 1000-level university introductory course in the Geosciences, although its contents could be applied to many other related courses. This text includes various important features designed to enhance the student learning experience in introductory Earth Science courses. These include a multitude of high-quality figures and images within each chapter that help to clarify key concepts. Self-test assessment questions are embedded in each online chapter that help students focus their learning. QR codes are provided for each assessment to allow students using print or PDF versions to easily access the quiz from an internet-capable device of their choice. The sequence of the book differs from mainstream commercial texts. It has been arranged to present elementary or foundational knowledge regarding rocks and minerals prior to discussion of more complex topics in Earth Science. Similar to the layout of the first edition, this book dedicates one chapter to each of the three major rock types, the processes of mass wasting, geological time, Earth history, and the origin of the universe and our Solar System. Additionally, the second edition includes a new chapter on meteorology, and combines the previously separate chapters on deserts and glaciers into a single, comprehensive chapter that explores these extreme environments. The first edition of this book is available at: https://doi.org/10.21061/introearthscience. Instructors reviewing, adopting, or adapting this textbook: please help us understand your use by filling out this form: https://bit.ly/interest_intro_earth_science.

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
Cat burglars, yeast races, and other hypothesis-driven bioscience practicals
Rebecca Barnes · The University of Sheffield · 2024
This book is aimed at fellow academics teaching biosciences students (probably in the first or second year of an undergraduate degree). It contains materials from eight different sets of practicals that colleagues have developed here at the University of Sheffield, concerning different areas of molecular and cellular biology. The experiments all span a few lab sessions, and are a step away from “cookbook” style labs with defined instructions and a certain outcome; each one contains significant elements of experimental planning. The standard lab session in our School is three hours long, with students working in pairs. Each section contains the following: some background information and scientific context; student-facing documents; technical information, including materials needed and any extra protocols; and additional resources that might be helpful such as references.

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
Human Evolutionary Demography
Oskar Burger; Ronald Lee; Rebecca Sear · Open Book Publishers · 2024
Human evolutionary demography is an emerging field blending natural science with social science. This edited volume provides a much-needed, interdisciplinary introduction to the field and highlights cutting-edge research for interested readers and researchers in demography, the evolutionary behavioural sciences, biology, and related disciplines. By bridging the boundaries between social and biological sciences, the volume stresses the importance of a unified understanding of both in order to grasp past and current demographic patterns. Demographic traits, and traits related to demographic outcomes, including fertility and mortality rates, marriage, parental care, menopause, and cooperative behavior are subject to evolutionary processes. Bringing an understanding of evolution into demography therefore incorporates valuable insights into this field; just as knowledge of demography is key to understanding evolutionary processes. By asking questions about old patterns from a new perspective, the volume—composed of contributions from established and early-career academics—demonstrates that a combination of social science research and evolutionary theory offers holistic understandings and approaches that benefit both fields. Human Evolutionary Demography introduces an emerging field in an accessible style. It is suitable for graduate courses in demography, as well as upper-level undergraduates. Its range of research is sure to be of interest to academics working on demographic topics (anthropologists, sociologists, demographers), natural scientists working on evolutionary processes, and disciplines which cross-cut natural and social science, such as evolutionary psychology, human behavioral ecology, cultural evolution, and evolutionary medicine. As an accessible introduction, it should interest readers whether or not they are currently familiar with human evolutionary demography.

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.
![Chromosomes, Genes, and Traits: An Introduction to Genetics [Revised Edition]](/api/files/covers/otl-1671.webp)
Nguồn ngoài
Chromosomes, Genes, and Traits: An Introduction to Genetics [Revised Edition]
Amanda Simons · ROTEL · 2024
This resource is intended for an introductory or intermediate-level college genetics course. It begins with an exploration of DNA and genome structure and continues with a study of the molecular mechanisms that drive gene expression. Concepts of classical transmission genetics are linked to the molecular mechanisms that underlie observable phenotypes. It concludes with specific topics that synthesize information from both molecular and transmission genetics, including consideration of topics like epigenetics, cancer biology, and evolution. Examples of both historical and current problems in genetics are presented, along with conversations of the relationship between genetics and society.
![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
Principles of Mechanics: Fundamental University Physics
Salma Alrasheed · Springer · 2019
This open access textbook takes the reader step-by-step through the concepts of mechanics in a clear and detailed manner. Mechanics is considered to be the core of physics, where a deep understanding of the concepts is essential in understanding all branches of physics. Many proofs and examples are included to help the reader grasp the fundamentals fully, paving the way to deal with more advanced topics. After solving all of the examples, the reader will have gained a solid foundation in mechanics and the skills to apply the concepts in a variety of situations. The book is useful for undergraduate students majoring in physics and other science and engineering disciplines. It can also be used as a reference for more advanced levels.

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
Microbiology for Earth Scientists
Matthew Kirk · New Prairie Press · 2023
Microorganisms are the most abundant form of life on Earth and in recent decades it has become increasingly clear that their collective activities are one of the dominant forces shaping the Earth. This book provides earth scientists with an introduction to microbiology and a look at the ways microorganisms are important to their area of expertise. The first part of this book summarizes some basic information about microorganisms, including a discussion of their diversity, physical properties, and metabolisms. From there, the second and third portions of the book are organized around the two-way interactions between microorganisms and their environments. The second portion of the book considers the ways that environmental conditions help determine distributions of microbial activity, including chapters focused on thermodynamic, kinetic, and biological factors. The third and final portion of the book examines the impacts of microbes on their environments. These impacts are placed within the context of earth system science, with chapters focused on impacts to the lithosphere, atmosphere, and hydrosphere. In these chapters, emphasis is placed on microbial impacts to greenhouse gas levels and the quality of water resources, underscoring the relevance of microbiology to environmental concerns of keen interest in the earth science community and beyond. This book is specifically designed for earth science students and can provide a helpful free resource for students in Geomicrobiology courses. However, portions of the book can also have value for students and professionals from any field who are interested in environmental microbiology.

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
Fundamentals of Cell Biology
Lauren Dalton; Robin Young; Heather Ng-Cornish · Oregon State University · 2024
This textbook is focused specifically on the principles and concepts of a foundational Cell Biology course. The book takes a more conceptual approach that highlights how scientists study cells, and how to analyze and interpret experimental results. Rather than focusing primarily on historical experiments that were key to our understanding of cells, the book explores a range of more modern experimental techniques so that students can begin to understand how cells are studied now, in the 21st century. The book includes over 200 newly created illustrations and animations, that were specifically designed for this book, as well as review questions at the end of each chapter, to help students explore and understand the material.

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
Chemistry Techniques and Explorations: An Introductory Chemistry Laboratory Manual
Daniel Albert · The Pennsylvania Alliance for Design of Open Textbooks (PA-ADOPT) · 2023
Chemistry Techniques and Explorations (2023) by Dr. Daniel R. Albert is an eTextbook laboratory manual for first semester introductory chemistry courses. The manual includes two different types of experiments (Technique and Exploration) designed to engage students in chemistry laboratory practices. Technique laboratories are designed for students to learn and practice chemistry laboratory skills that are utilized in a wide variety of disciplines. Exploration laboratories provide freedom and time for students to use previously acquired skills toward answering a new application focused question. Exploration laboratories help build the scientific thinking skills necessary to approach novel problems. The goal of this lab manual is to build both fundamental techniques and problem-solving skills that aid students in becoming practicing scientists.