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Integrating maths and plant science to explain how plant roots generate a hormone gradient

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VIDEO: Illustrates that differential cell permeability is the key to creating the exogenous-GA-generated gradient.
Technical detail: The time-course shows a root treated with nlsGPS1 growing in Rootchip18S with GA at standard (pH.
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Credit: Sainsbury Lab, University of Cambridge and University of Nottingham
The research team that developed a biosensor that first recorded that a distinct gradient of the plant growth hormone gibberellin correlated with plant cell size has now revealed how this distribution pattern is created in roots.
Starting when a plant embryo forms within a seed and continuing throughout the plant lifecycle, undifferentiated stem cells undergo radical transformations into specialised root, stem, leaf and reproductive organ cells. This transformation relies on a suite of molecules called phytohormones that, much like human hormones, can move between cells and tissues and trigger distinct biological process ....

United Kingdom , Markus Owen , Alexander Jones , Annalisa Rizza , University Of Cambridge , University Of Nottingham , Sainsbury Laboratory , Green Revolution , Leah Band , Professor Markus Owen , Plant Sciences , Mathematics Statistics , Algorithms Models , ஒன்றுபட்டது கிஂக்டம் , மார்கஸ் ஓவந் , அலெக்சாண்டர் ஜோன்ஸ் , அன்னலிச ரிஜ்ஜ , பல்கலைக்கழகம் ஆஃப் கேம்பிரிட்ஜ் , பல்கலைக்கழகம் ஆஃப் நாட்டிங்ஹாம் , சைன்ஸ்பரி ஆய்வகம் , பச்சை புரட்சி , லியா இசைக்குழு , ப்ரொஃபெஸர் மார்கஸ் ஓவந் , ஆலை அறிவியல் , கணிதம் புள்ளிவிவரங்கள் ,

3D model shows off the insides of a giant permafrost crater

Credit: Evgeny Chuvilin
Researchers from the Oil and Gas Research Institute of the Russian Academy of Sciences and their Skoltech colleagues have surveyed the newest known 30-meter deep gas blowout crater on the Yamal Peninsula, which formed in the summer of 2020. The paper was published in the journal
Geosciences.
Giant craters in the Russian Arctic, thought to be the remnants of powerful gas blowouts, first attracted worldwide attention in 2014, when the 20 to 40-meter wide Yamal Crater was found quite close to the Bovanenkovo gas field. The prevailing hypothesis is that these craters are formed after gas is accumulated in cavities in the upper layers of permafrost, and increasing pressure ultimately unleashes an explosive force. Most of these craters are rather short-lived as they apparently quickly fill with water over several years and turn into small lakes. As of now, there are some 20 known and studied craters. ....

Yamal Peninsula , Yamalo Nenetskiy Avtonomnyy Okrug , Igor Bogoyavlensky , Boris Bukhanov , Andrey Umnikov , Yevgeny Chuvilin , Arctic Development , Massachusetts Institute Of Technology , Skoltech Center , Russian Center , Gas Research Institute , Russian Academy , Russian Arctic , Yamal Crater , Vasily Bogoyavlensky , Yamalo Nenets Autonomous Area , Hydrocarbon Recovery , Massachusetts Institute , Earth Science , Geology Soil , Geophysics Gravity , Temperature Dependent Phenomena , Algorithms Models , Calculations Problem Solving , Computer Science , Climate Change ,

Scholars of outstanding promise

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Every so often the work of an early career researcher becomes so important, it captures the attention of their professional peers. Recognizing these young scholars of outstanding promise, the Alfred P. Sloan Foundation awards Sloan Research Fellowships to support their future breakthroughs and careers as leaders in their fields.
This year, three of those 128 early-career innovators come from UC Santa Barbara.
I congratulate Sung Soo Kim, Fedor Manin and Timothy Brandt on this exceptional honor, said Pierre Wiltzius, dean of mathematical, physical and life sciences. With these fellowships, they join a rarefied group of 126 extraordinarily talented young scholars whose research shows great promise. I look forward to learning about the valuable discoveries these awards will support. ....

United States , Timothy Brandt , Fedor Manin , Daniell Goroff , Santa Barbara , Adamf Falk , Soo Kim , Pierre Wiltzius , John Bates Clark , University Of California , Alfredp Sloan Foundation , A Sloan Research Fellowship , National Medal Of Science , Sloan Research Fellows , Uc Santa Barbara Department Of Molecular , Sloan Research Fellowships , Department Of Physics , Department Of Mathematics , A Sloan Research , Sloan Research Fellowship , Sung Soo Kim , Sloan Research Fellow , Developmental Biology , Sloan Fellowship , Nobel Prize , Fields Medal ,

Corn belt farmland has lost a third of its carbon-rich soil

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More than one-third of the Corn Belt in the Midwest - nearly 30 million acres - has completely lost its carbon-rich topsoil, according to University of Massachusetts Amherst research that indicates the U.S. Department of Agriculture has significantly underestimated the true magnitude of farmland erosion.
In a paper published in the
Proceedings of the National Academy of Sciences, researchers led by UMass Amherst graduate student Evan Thaler, along with professors Isaac Larsen and Qian Yu in the department of geosciences, developed a method using satellite imagery to map areas in agricultural fields in the Corn Belt of the Midwestern U.S. that have no remaining A-horizon soil. The A-horizon is the upper portion of the soil that is rich in organic matter, which is critical for plant growth because of its water and nutrient retention properties. The researchers then used high-resolution elevation data to extrapolate the satellite measurements across the Corn Bel ....

Evan Thaler , Isaac Larsen , Qian Yu , Us Department Of Agricultural , Proceedings Of The National Academy Sciences , University Of Massachusetts Amherst , Corn Belt , Massachusetts Amherst , National Academy , Earth Science , Geology Soil , Mathematics Statistics , Algorithms Models , Calculations Problem Solving , Satellite Missions Shuttles , Technology Engineering Computer Science , எவன் தாலர் , ஐஸ்யாக் லார்சன் , பல்கலைக்கழகம் ஆஃப் மாசசூசெட்ஸ் மஹேர்ஸ்ட , சோளம் பெல்ட் , மாசசூசெட்ஸ் மஹேர்ஸ்ட , தேசிய கலைக்கழகம் , பூமி அறிவியல் , புவியியல் மண் , கணிதம் புள்ளிவிவரங்கள் , கணக்கீடுகள் ப்ராப்லம் தீர்க்கும் ,

The effects of antidepressant drugs evaluated through the analysis of patients' tweet

Scientists have identified behavioural and linguistic changes in tweets in Spanish published by users suffering from depression and who are taking medication to treat this disease. ....

Comunidad Autonoma De Cataluna , Miguel Angel Mayer , Francesco Ronzano , Ferran Sanz , Department Of Experimental , World Health Organization , Hospital Del Mar Medical Research Institute , Journal Of Medical Internet Research , Research Programme On Biomedical Informatics , Health Sciences , Research Programme , Biomedical Informatics , Medical Internet Research , Angela Leis , Laurai Furlong , Integrative Biomedical Informatics , Big Data , Algorithms Models , Medicine Health , Mental Health , Depression Anger , காமுனிடட தன்னாட்சி டி கடலுள் , மிகுவல் தேவதை மேயர் , ஃபெரான் ஸ்யாந்ஸ் , துறை ஆஃப் சோதனை , உலகம் ஆரோக்கியம் ஆர்கநைஸேஶந் ,