Results 41 to 50 of about 20,984,995 (345)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Einstein e a Filosofia

open access: yesRevista Brasileira de Ensino de Física
Albert Einstein teve, ao longo de sua vida, um intenso envolvimento com a Filosofia e com filósofos da ciência, fato que marcou de maneira profunda seu modo de fazer Física.
Sílvio R. Dahmen
doaj   +1 more source

General system of royalties: new resources for science, technology and innovation in Colombia

open access: yesRevista CEA, 2015
This paper presents an overview of the implementation of the Fund for Science, Technology and Innovation of General system royalties in Colombia (FCTeI-SGR).
Yiseth Marina Becerra Arévalo
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Understanding the Transition between High School and College Mathematics and Science [PDF]

open access: yes, 2010
Mathematics and science education is gaining increasing recognition as key for the well-being of individuals and society. Accordingly, the transition from high school to college is particularly important to ensure that students are prepared for college ...
Basile, C.   +4 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

The Andrology Working Group of the Society of Urological Surgery in Turkiye: Bridging Academic Gaps and Advancing Male Reproductive or Sexual Health

open access: yesJournal of Urological Surgery
The Andrology Working Group of the Society of Urological Surgery in Turkiye was established to address the lack of a formal andrology subspecialty in Turkiye and to advance male reproductive and sexual health.
Gökhan Çeker   +4 more
doaj   +1 more source

Science Reference Service: An Introduction for the General Reference Librarian

open access: yesIssues in Science and Technology Librarianship, 1993
The STS Section is sponsoring a Preconference before the ALA Annual Meeting. This Preconference is designed for academic librarians who serve at general reference desks at community colleges, colleges, or universities and who do not have formal training
Not applicable
doaj   +1 more source

Prevalence of sarcopenia in the world: a systematic review and meta- analysis of general population studies

open access: yesJournal of Diabetes and Metabolic Disorders, 2017
BackgroundSarcopenia, an age-related decline in muscle mass and function, is one of the most important health problems in elderly with a high rate of adverse outcomes.
G. Shafiee   +5 more
semanticscholar   +1 more source

Mathematics in Hands-On Science for Liberal Arts Students [PDF]

open access: yes, 2000
We describe a number of experiments from the courses called, General Science 9, part of the science program for elementary education majors at Brooklyn College. These courses provide hands-on learning experiences for students who are insecure and weak in
Sobel, M. I.
core   +1 more source

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