Results 71 to 80 of about 962,583 (347)

Gills as Possible Accessory Circulatory Pumps in Limulus polyphemus [PDF]

open access: yes, 1989
Heart electrical activity (ECGs), gill closer muscle potentials (EMGs), and blood pressures in the heart and the branchiocardiac canals, were measured in adult horseshoe crabs (Limulus polyphemus) during various activities.
Freadman, M. A., Watson, Winsor H., III
core   +1 more source

On convergence of generalized continued fractions and Ramanujan's conjecture [PDF]

open access: yes, 2004
We consider continued fractions \frac{-a_1}{1-\frac{a_2}{1-\frac{a_3}{1-...}}} \label{fr} with real coefficients $a_i$ converging to a limit $a$. S.Ramanujan had stated the theorem (see [ABJL], p.38) saying that if $a\neq\frac14$, then the fraction ...
Glutsyuk, A. A.
core   +3 more sources

NAD⁺ Reduction in Glutamatergic Neurons Induces Lipid Catabolism and Neuroinflammation in the Brain via SARM1

open access: yesAdvanced Science, EarlyView.
NAD⁺ homeostasis maintains neuronal integrity through opposing actions of NMNAT2 and SARM1. Loss of NMNAT2 in glutamatergic neurons reprograms cortical metabolism from glucose to lipid catabolism, depletes lipid stores, and triggers inflammation and neurodegeneration.
Zhen‐Xian Niou   +9 more
wiley   +1 more source

A Hydrodynamic Bioreactor for High‐Yield Production of Extracellular Vesicles from Stem Cell Spheroids with Defined Cargo Profiling

open access: yesAdvanced Science, EarlyView.
This study harnesses hydrodynamic flows to generate, confine and stimulate stem cell spheroids, enabling the large‐scale production of extracellular vesicles (EVs). This innovative method not only streamlines spheroid formation and subsequent EV release in a single, integrated process, but also ensures the generation of EVs with enhanced biological ...
Solène Lenoir   +7 more
wiley   +1 more source

Biological characteristics of the catch from 1984-85 Pacific herring, Clupea harengus pallasi, roe fishery in California [PDF]

open access: yes, 1984
In Tomales Bay, 5-, 6-, and 7-yr-old herring, Clupea harengus pallasi, composed 75% by number of the 1984-85 season's catch. In San Francisco Bay, 2-, 3-, and 4-yr-old herring composed 82% by number of the roundhaul catch, and 5-, 6-, and 7-yr-old ...
Spratt, Jerome D.
core   +1 more source

Professionalization, Tutor Training, and Service Learning in the Writing Center [PDF]

open access: yes, 2007
In “The Professionalization of Tutor Training,” Judy Gill defines professionalization as “introducing prospective tutors to the professional conversation” (1), which includes instruction in writing center theory featured in the surveyed courses in the ...
Gorkemli, Serkan
core   +1 more source

Grain Boundary Segregation Suppresses Local Short‐Range Ordering in Nanocrystalline High‐Entropy Alloys

open access: yesAdvanced Science, EarlyView.
Multicomponent alloys, such as high‐entropy alloys (HEAs), are considered to be in a random solid solution. However, recent studies have shown that short‐range ordering (SRO) is prevalent in these HEAs due to multipairwise interactions among the constituent elements, which can be deleterious.
Moses A. Adaan‐Nyiak   +8 more
wiley   +1 more source

Biological characteristics of the catch from the 1986-87 Pacific herring, Clupea harengus pallasi, roe fishery in California [PDF]

open access: yes, 1987
In Tomales Bay, 4-, 5-, and 6-yr-old herring, Clupea harengus pallasi, composed 85% by number of the 1986-87 season's catch. In San Francisco Bay, 2-, 3-, and 4-yr-old herring composed 88% of the roundhaul catch, and 4-, 5-, and 6-yr-old herring composed
Spratt, Jerome D.
core  

Genetic Control of Tissue Remodeling by a Non‐Coding SNP in ITGA8 Explains Carotenoid‐Based Color Polymorphism in Marine Mollusks

open access: yesAdvanced Science, EarlyView.
In this study, the orange‐muscle giant abalone (Haliotis gigantea) is used as a model to identify a non‐coding SNP that disrupts the interaction between ITGA8 pre‐mRNA and the splicing factor ILF2, leading to altered ITGA8 splicing. These splicing changes promote carotenoid accumulation in abalone muscle through the regulation of tissue remodeling ...
Xiaohui Wei   +17 more
wiley   +1 more source

Mechanism of rapid elimination of lysophosphatidic acid and related lipids from the circulation of mice

open access: yesJournal of Lipid Research, 2013
Lysophosphatidic acid (LPA) is a bioactive lipid mediator. Concentrations of the major LPA species in mouse plasma decreased uniformly following administration of a potent selective inhibitor of the LPA-generating lysophospholipase D autotaxin ...
Abdel K. Salous   +8 more
doaj   +1 more source

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