GSA (Journals) vs Learn Science Tutorials

About the app The GSA (Gerontological Society of America) Journals app from Oxford University Press enables you to read four journals, The Gerontologist®, The Journals of Gerontology, Series A® and Series B®, and Public Policy & Aging Report, both online and offline on your iOS device (provided you have a relevant personal subscription, institutional subscription, or society membership). You can: • download issues when you’re online, so that you can read them whether you’re connected to the Internet or not • view the tables of contents for issues when you’re online, whether you have downloaded them yet or not • easily read issues from cover to cover by swiping through articles • download and read advance articles (published ahead of print) • download and read the PDF version of an article • use the in-app search feature • bookmark your favorite articles • add your own notes to articles • share articles by email or on social media About the journals The Journals of Gerontology were the first journals on aging published in the United States. The tradition of excellence in these scientific journals continues today: The Gerontologist® provides a multidisciplinary perspective of human aging through the publication of research and analysis in gerontology, including social policy, program development, and service delivery. The Journals of Gerontology, Series A® publishes within its covers The Journal of Gerontology: Biological Sciences and The Journal of Gerontology: Medical Sciences. The Journals of Gerontology, Series B® publishes within its covers the Journal of Gerontology: Psychological Sciences and the Journal of Gerontology: Social Sciences. Public Policy & Aging Report explores policy issues generated by the aging of American society. Each thematic issue is designed to stimulate debate, highlight emerging concerns, and propose alternative policy options. The journals are published on behalf of the Gerontological Society of America (GSA) by Oxford University Press. Oxford University Press is a department of the University of Oxford. It furthers the University’s objective of excellence in research, scholarship, and education by publishing worldwide.

A Complete Guide to learn Science, Biology, Physics and chemistry with simple explanation. This app provides the best study material for all the beginners and expert level students who want to learn science. Learn Science Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence. Scientific methodology includes the following: Evidence. Experiment and/or observation as benchmarks for testing hypotheses. Learn Biology Biology is the study of life. The word "biology" is derived from the Greek words "bios" (meaning life) and "logos" (meaning "study"). In general, biologists study the structure, function, growth, origin, evolution and distribution of living organisms. Learn Biology is a natural science discipline that studies living things. It is a very large and broad field due to the wide variety of life found on Earth, so individual biologists normally focus on specific fields. These fields are either categorized by the scale of life or by the types of organisms studied. Learn Physics Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, and its main goal is to understand how the universe behaves. The science of the behavior of the physical world. Stemming from the Greek "physis," which means the characteristics of nature, physics covers the structure of matter (atoms, particles, etc.) and a huge variety of subjects, including chemical bonding, gravity, space, time, electromagnetism, electromagnetic radiation, the theory of relativity, thermodynamics and quantum mechanics. Learn Chemistry The branch of natural science that deals with the composition and constitution of substances and the changes that they undergo as a consequence of alterations in the constitution of their molecules is called chemistry. Chemistry is one branch of science. Science is the process by which we learn about the natural universe by observing, testing, and then generating models that explain our observations. Because the physical universe is so vast, there are many different branches of science. Thus, chemistry is the study of matter, biology is the study of living things, and geology is the study of rocks and the earth. Mathematics is the language of science, and we will use it to communicate some of the ideas of chemistry. Learn Science is the field, that is, it develops a body of knowledge by observing things and performing experiments. The meticulous process of gathering and analyzing data is called the "scientific method,".