The Origin of the First Structures formed in Galaxies like the Milky Way identified

An example of a nearby spiral galaxy, M81, where the bulge is easily identified as the central redder part, and the disc, dotted with zones where stars are currently forming and appear as blue regions forming spiral arms. Credit: NASA/JPL-Caltech/ESA/Harvard-Smithsonian CfA.
An example of a nearby spiral galaxy, M81, where the bulge and the disc are easily identified. Credit: NASA/JPL-Caltech/ESA/Harvard-Smithsonian CfA.

An international team of scientists led from the Centre for Astrobiology (CAB, CSIC-INTA), with participation from the Instituto de Astrofísica de Canarias (IAC), has used the Gran Telescopio Canarias (GTC) to study a representative sample of galaxies, both disc and spheroidal, in a deep sky zone in the constellation of the Great Bear to characterize the properties of the stellar populations of galactic bulges. The researchers have been able to determine the mode of formation and development of these galactic structures. The results of this study were recently published in The Astrophysical Journal.

The researchers focused their study ...

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New study further Advances the Treatment of Chronic Pain

New study further advances the treatment of chronic pain
Pinwheel flower. Credit: LIH

Scientists have demonstrated that conolidine, a natural painkiller derived from the pinwheel flower and traditionally used in Chinese medicine, interacts with the newly identified opioid receptor ACKR3/ CXCR7 that regulates opioid peptides naturally produced in the brain. The researchers also developed a synthetic analogue of conolidine, RTI-5152-12, which displays an even greater activity on the receptor.

These findings, which were published on June 3rd in the international journal Signal Transduction and Targeted Therapy (Nature publishing group), further advance the understanding of pain regulation and open alternative therapeutic avenues for the treatment of chronic pain.

Opioid peptides are small proteins that mediate pain relief and emotions, in...

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The Biodegradable Battery: Internet of Things

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The biodegradable battery consists of four layers, all flowing out of a 3D printer one after the other. The whole thing is then folded up like a sandwich, with the electrolyte in the center. Image: Gian Vaitl / Empa

The number of data-transmitting microdevices, for instance in packaging and transport logistics, will increase sharply in the coming years. All these devices need energy, but the amount of batteries would have a major impact on the environment. Empa researchers have developed a biodegradable mini-capacitor that can solve the problem. It consists of carbon, cellulose, glycerin and table salt. And it works reliably.

The fabrication device for the battery revolution looks quite unconspicuous: It is a modified, commercially available 3D printer, located in a room in the Empa...

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Did Heat from Impacts on Asteroids provide the Ingredients for Life on Earth?

 Relationship between maximum temperature and dimensionless distance. B. Relationship between duration and dimensionless distance.
Duration is scaled by thermal diffusion (*6) time. The colors indicate different projectiles and impact speeds: PC is a polycarbonate sphere with a diameter of 4.7mm and Al is an aluminum sphere with a diameter of 2mm.

A research group from Kobe University has demonstrated that the heat generated by the impact of a small astronomical body could enable aqueous alteration (*1) and organic solid formation to occur on the surface of an asteroid. They achieved this by first conducting high-velocity impact cratering experiments using an asteroid-like target material and measuring the post-impact heat distribution around the resulting crater...

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