Results 81 to 90 of about 1,835,390 (328)

Sabot Front Borerider Stiffness vs. Dispersion: Finding the Knee in the Curve

open access: yesShock and Vibration, 2001
In the design of armor piercing, fin-stabilized, discarding sabot projectiles, the radial stiffness of the sabot front borerider has a significant impact on the projectile's dispersion and is, therefore, an important design consideration.
Alan F. Hathaway, John R. Burnett Jr.
doaj   +1 more source

A Computer's Arrow of Time

open access: yesEntropy, 2005
: Some researchers believe that the psychological or consciousness arrow of time is a consequence of the thermodynamic arrow. Some don't. As for many issues in this area, the disagreement revolves about fundamental and undebatable assumptions.
L. S. Schulman
doaj   +1 more source

Arrowing in [PDF]

open access: yesNature Nanotechnology, 2007
Indium oxide can be made into nanoarrows and other nanostructures by changing the catalyst and source materials used in a chemical vapour deposition ...
openaire   +2 more sources

Time's Arrow, December 11, 1996 [PDF]

open access: yes, 1996
This is the concert program of the Time's Arrow performance on Wednesday, December 11, 1996 at 8:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue.
School of Music, Boston University
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Social context prevents heat hormetic effects against mutagens during fish development

open access: yesFEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere   +5 more
wiley   +1 more source

The impact of the COVID 19 pandemic on myopia prevalence in 5 year old Israeli children

open access: yesScientific Reports
To determine whether the COVID-19 pandemic restrictions among 5-year-old kindergarten children in Israel affected the prevalence of uncorrected myopia. A nationwide community-based study assessed and compared the prevalence of uncorrected myopia in 101 ...
Nir Zontag   +3 more
doaj   +1 more source

Secondary Students’ Perceptions of Open Science Textbooks

open access: yesJournal of Interactive Media in Education, 2018
In an attempt to align instructional resources with new state standards and to increase teacher awareness of these standards, one large suburban public school district piloted the development and adoption of open secondary science textbooks.
Rebecca Morales, Alesha Baker
doaj   +1 more source

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

open access: yesFEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke   +2 more
wiley   +1 more source

On the statistical arrow of time

open access: yes, 2023
What is the physical origin for the arrow of time? It is a commonly held belief in the physics community that it relates to the increase of disorder, or entropy, as it appears in the statistical interpretation of the second law of thermodynamics.
openaire   +2 more sources

General Economic Equilibrium: Purpose, Analytic Techniques, Collective Choice [PDF]

open access: yes
Lecture to the memory of Alfred Nobel, December 12, 1972general equilibrium;
Arrow, Kenneth J.
core  

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