Results 71 to 80 of about 535,935 (302)
Early functional improvement after stroke correlates with cardiovascular fitness
Kaohsiung Journal of Medical Sciences, 2018 Cardiovascular fitness exerts directly beneficial effects on functional and cognitive outcomes in patients of chronic stroke. However, the effect of early rehabilitation on cardiovascular function has not yet been thoroughly examined.
Chun-Kai Chen +4 more
doaj +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Assessment of the efficiency of cognitive function of people over 65
Journal of Education, Health and Sport, 2018 Demographic estimates for Poland indicate that the average life expectancy of the population will increase further over the next decades. Weakness of memory is a physiological phenomenon affecting about 60% of people over 65, whereas the prevalence of ...
Katarzyna Tomaszewska +2 more
doaj +3 more sources
Le processus incapacitant au cours du vieillissement : rôle de l’exercice/activité physique
Bulletins et Mémoires de la Société d’Anthropologie de Paris, 2007 Aging is a phenomenon of increased importance in contemporaneous societies. Although it is well established that physical exercise/activity contributes to maintain functional fitness at optimal levels, physical inactivity is a largely prevalent behaviour
Philipe de Souto Barreto +1 more
doaj +1 more source
Natural process – Natural selection [PDF]
, 2007 Life is supported by a myriad of chemical reactions. To describe the overall process we have formulated entropy for an open system undergoing chemical reactions.
Annila, Arto
core
Highly Mutable Linker Regions Regulate HIV-1 Rev Function and Stability. [PDF]
, 2019 HIV-1 Rev is an essential viral regulatory protein that facilitates the nuclear export of intron-containing viral mRNAs. It is organized into structured, functionally well-characterized motifs joined by less understood linker regions.
Fernandes, Jason D +4 more
core +3 more sources
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Diffusion-based neuromodulation can eliminate catastrophic forgetting in simple neural networks
, 2017 A long-term goal of AI is to produce agents that can learn a diversity of skills throughout their lifetimes and continuously improve those skills via experience. A longstanding obstacle towards that goal is catastrophic forgetting, which is when learning
Clune, Jeff, Velez, Roby
core +2 more sources
FEBS Letters, EarlyView.This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel +13 more
wiley +1 more source
Selection, inheritance, and the evolution of parent-offspring interactions
, 2004 Very few studies have examined parent-offspring interactions from a quantitative genetic perspective. We used a cross-fostering design and measured genetic correlations and components of social selection arising from two parental and two offspring ...
Lock, Judith E. +2 more
core +1 more source