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Space - Europe PMC

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Last Updated: 21 July 2022

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Quantitative Analysis of Structure Color of Photonic Crystal Sensors Based on HSB Color Space.

The HSB colour space is a three-channel color analysis system based on hue -saturation -brightness. We use the HSB color space to determine the physical appearance of the AM/NIPAM PhCs hydrogel sensor in response to temperature and organic solvents. We demonstrated that the color analysis based on the hue value could produce an analysis that is close to spectrum analysis. In addition, we've collected stimulus-responsive PhC structure color images from references and quantitatively analyzed them using the HSB color space.

Source link: https://europepmc.org/article/MED/35856715


The more it changes the more it stays the same: The French social space of material consumption between 1985 and 2017.

A key argument of scholars who predicted a general flattening of class inequalities in Western societies in the twentieth century has been the alleged homogenization of material consumption patterns in Western societies. In studies of lifestyle stratification, lifestyle-based lifestyles have generally ignored differences in material use methods and evolution. This article looks at six waves of the French Households Budget Surveys from 1985 to 2017 and Geometric Data Analysis, reveals that the two key structuring challenges in the French space of material consumption remained unchanged over 32 years.

Source link: https://europepmc.org/article/MED/35855502


Characterising functional strategies and trait space of freshwater macroinvertebrates.

We reviewed the operational goals and the trait space of 596 European taxa of freshwater macroinvertebrates identified by 63 fuzzy coded characteristics characteristic groups. In accordance with hopes and in contrast to existing findings, we discovered that life cycles and aquatic strategies were instrumental in determining the functional structure of freshwater macroinvertebrates. When considering a variety of possibilities that might exist if traits varied independently, we discovered that the functional trait space of freshwater macroinvertebrates is reduced relative to the variety of options that might exist if traits varied independently.

Source link: https://europepmc.org/article/MED/35854038


Nano-graphite field-emission cathode for space electric propulsion systems.

Improving the thruster's performance is a significant obstacle to the development of space electric propulsion systems, particularly advanced air-breathing thrusters that use the surrounding rarefied atmosphere as fuel. Field emission cathodes can be used to produce a significant decrease in thruster power consumption by using field emission cathodes that do not require heating and have the highest energy quality. Nano-graphite cathodes were developed for the production of an electron gun with increased durability and minimized energy losses associated with electron extraction based on the obtained experimental findings.

Source link: https://europepmc.org/article/MED/35785757


MRTF May Be the Missing Link in a Multiscale Mechanobiology Approach toward Macrophage Dysfunction in Space

Given that the combination of spaceflight microgravity and radiation is multiscale and multifactorial in nature, it is likely that conflict findings are common in the field. This theory paper reanalyzes study on the macrophage spaceflight response across a variety of time scales, from seconds to weeks, from molecular, extracellular, to physiological. We discuss the mechanosensitive MRTF-SRF pathway dependence on the actin cytoskeleton/nucleoskeleton, microtubules, membrane mechanoreceptors, hypoxia, oxidative stress, and intracellular/extracellular crosstalk in this post.

Source link: https://europepmc.org/article/PPR/PPR520303


The Beginning to the End of the Universe and Eternal Space-time

We suggest a cosmological model in which the Big Bang was not the first of space and time; there was a previous phase leading up to it, with many cycles of contraction and expansion that repeat indefinitely; from big bang to large crunch. The shrinking of space as the pressure of shrinking space decreases, the deceleration of shrinking space increases in general, but in general, decelerate in the pressure of shrinking space leads to increased expansion. The new name of eternal space and its unique property makes it possible to describe a sequence of events from the Big Bang to the Big Crunch.

Source link: https://europepmc.org/article/PPR/PPR520290


Hippocampal and Medial Prefrontal Cortical Maps Represent Episodes and Rules in a Common Task Space

The hippocampus, the prefrontal cortex, aids memory retrieval, but how their representations relate is unclear. When both regions were required to complete a spatial memory problem, but not in a cue approach challenge that necessitated neither location, PFC expected CA1 representations when both regions were required to complete a spatial memory task, but not in a cue approach challenge that necessitated no region.

Source link: https://europepmc.org/article/PPR/PPR520261

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions