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    A New Way of Diagnosing and Treating Disease – without cutting Skin

    May 19, 2019, Categories  Health/Medical, Biology/Biotechnology

    Imaging blood vessel before and after closure.(A and C) RCM and STD images of the same blood vessel before and after closure. (B) Algorithm of STD. N is the frame number for calculation of STD (in this case, N = 10); Ixy(i) is the pixel (x,y) intensity in the ith frame; Uxy is the average intensity at pixel (x,y) over all frames. (D to G) STD of different sized blood vessels before (top row) and after (bottom row) closure. The dashed white square boxes indicate the scanning irradiation area of the high-power treatment fs laser on the vessels. The pulse energy is 4.5 nJ per pulse, and the irradiation time is in the range of 0.1 to 2.1 s. Scale bars, 50 μm. (See movies S1 and S2 for more details.)

    Researchers develop new laser microscope that could be ‘revolutionary’ for treatment of ...

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    Ultra-Clean Fabrication platform produces nearly ideal 2D Transistors

    May 19, 2019, Categories  Physics, Technology/Electronics

    An enhanced optical microscope image of a Hall-bar structure used to characterize transistor properties for devices made with ultraclean transferred contacts. The long radial lines, made from deposited gold, connect the small contacts at the center of the device to large probe pads for easy measurements.

    Columbia Engineering researchers report that they have demonstrated a nearly ideal transistor made from a 2D material stack – with only a two-atom-thick semiconducting layer – by developing a completely clean and damage-free fabrication process. Their method shows vastly improved performance compared to 2D semiconductors fabricated with a conventional process, and could provide a scalable platform for creating ultra-clean devices in the future.

    Researchers at Columbia Engineering repo...

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    Galaxy Blazes with New Stars born from close encounter

    May 19, 2019, Categories  Astronomy/Space

    New image of irregular galaxy NGC 4485 captured by Hubble’s Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys (ACS).
    Credit: NASA and ESA; Acknowledgment: T. Roberts (Durham University, UK), D. Calzetti (University of Massachusetts) and the LEGUS Team, R. Tully (University of Hawaii), and R. Chandar (University of Toledo)

    The irregular galaxy NGC 4485 shows all the signs of having been involved in a hit-and-run accident with a bypassing galaxy. Rather than destroying the galaxy, the chance encounter is spawning a new generation of stars, and presumably planets.

    The right side of the galaxy is ablaze with star formation, shown in the plethora of young blue stars and star-incubating pinkish nebulas. The left side, however, looks intact...

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    Natural Compound found in Broccoli reawakens the Function of Potent Tumor Suppressor

    May 17, 2019, Categories  Uncategorized

    Reactivation of PTEN tumor suppressor for cancer treatment through inhibition of a MYC-WWP1 inhibitory pathway. Science, 2019; 364 (6441): eaau0159 DOI: 10.1126/science.aau0159

    Finding offers potential novel approach to cancer treatment and prevention. Long associated with decreased risk of cancer, broccoli and other cruciferous vegetables – the family of plants that also includes cauliflower, cabbage, collard greens, Brussels sprouts and kale – contain a molecule that inactivates a gene known to play a role in a variety of common human cancers...

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