Results 61 to 70 of about 10,401,890 (300)

Exertional sickling: Questions and controversy [PDF]

open access: yes, 2014
Sickle cell trait (SCT) occurs in about 8% of African-Americans and is often described to be of little clinical consequence. Over time, a number of risks have emerged, and among these are rare but catastrophic episodes of sudden death in athletes and ...
Blinder, Morey A., Russel, Sarah
core   +3 more sources

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

Questions and responses in Lao [PDF]

open access: yes, 2010
This paper surveys the structure of questions and their responses in Lao, a Southwestern Tai language spoken in Laos, Thailand, and Cambodia. Data are from video-recordings of naturally occurring conversation in Vientiane, Laos.
Enfield, N.
core   +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

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Which questions should be asked in classroom talk in mathematics? Presentation and discussion of a questioning model

open access: yesActa Didactica Norge, 2018
In this article, we focus on questions posed by the teacher in classroom talk in mathematics. Questions have been shown to be of great importance in developing productive classroom conversations and the students’ mathematical thinking.
Inger Ulleberg, Ida Heiberg Solem
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

“Che cos’è? Va e de”? Domande, risposte e commutazione di codice in due classi svedesi di italiano L2/LS

open access: yesModerna Språk, 2020
This conversation-analytic study investigates the use of code switching (henceforth CS) in three Italian L2 classrooms in Sweden. Specifically, when and why do teachers code switch in their questions? Is the language choice pedagogically motivated? Does
Caroline Carlén, Franco Pauletto
doaj   +1 more source

Sweatshop Frequently Asked Questions [PDF]

open access: yes, 2008
This document is part of a digital collection provided by the Martin P. Catherwood Library, ILR School, Cornell University, pertaining to the effects of globalization on the workplace worldwide.
International Labor Rights Forum
core   +1 more source

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