Results 131 to 140 of about 529,159 (305)

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Root and crown characteristics of alfalfas varying in fall dormancy

open access: yes, 1994
We compared root and crown characteristics of five alfalfa (Medicago sativa L.) entries which differed in fall dormancy. Alfalfas were subjected to bud or mid-bloom harvests.
N. A. Juan, D. K. Barnes, C. C. Sheaffer
core   +1 more source

Effect of cutting depth during sugarcane (Saccharum spp. hybrid) harvest on root characteristics and yield. [PDF]

open access: yesPLoS One, 2021
Yang SL   +7 more
europepmc   +1 more source

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

open access: yesFEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara   +3 more
wiley   +1 more source

Physical characteristics mother and child

open access: yes
Physical characteristics assesses the hair, eye and skin color of mother and ...
The Generation R Study
core   +1 more source

Correction: Effect of cutting depth during sugarcane (Saccharum spp. hybrid) harvest on root characteristics and yield. [PDF]

open access: yesPLoS One, 2021
Yang SL   +7 more
europepmc   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Characteristics of Biomass Allocation and Root Distribution of Halogeton glomeratus under Different Rainfall Conditions

open access: yes, 2012
Water is the limited factor in arid and semi-arid regions. Precipitation, as the sole source of water replenishment in arid area, plays an important role in sustaining the desert ecosystem. With the trend of global warming, precipitation is increasing in
曾凡江   +5 more
core  

Bounds for characteristic roots of matrices

open access: yesDuke Mathematical Journal, 1948
Eine charakteristische Wurzel \(\omega\) einer zweireihigen Matrix \((a_{\kappa\lambda})\) kann nur dann beiden Kreisen \(\vert\omega - a_{11}\vert \le \vert a_{12}\vert\), \(\vert\omega - a_{22}\vert \le \vert a_{21}\vert\) angehören, wenn sie gemeinsamer Randpunkt ist; ist \(\omega\) außerdem Doppelwurzel, so berühren sich beide Kreise und die Radien
openaire   +2 more sources

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