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Risk factors for arteriovenous fistula dysfunction in hemodialysis patients: a retrospective study
Abstract Arteriovenous fistula (AVF) is the first choice of vascular access in hemodialysis (HD) patients. However, the correlations between patient factors and the arteriovenous fistula patency remain unclear. Therefore, our study investigates the risk factors associated with AVF dysfunction in HD patients. A total of 233 end-stage renal disease (ESDR) patients who met the study…
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The value of TDI combined with myocardial strain parameters in quantitative evaluation of left heart function in parturient with pregnancy-induced hypertension
Abstract This study aimed to investigate the value of tissue doppler imaging (TDI) and 4D myocardial strain parameters in evaluating left heart function of pregnant women with hypertension and the association between these parameters and relevant factors. Forty-five pregnant women with hypertensive disorder, including 20 with hypertension, 15 with mild preeclampsia, and 10 with severe…
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Meteorites Were A Likely Source Of Nitrogen For Early Earth
a, Backscattered electron image of a fine Ryugu grain. The white boxes correspond to the areas shown in b and c. b, Secondary electron image of framboidal magnetite showing granular texture. c, Secondary electron image of porous iron sulfide surrounded by phyllosilicate. The arrow points to an iron whisker on the iron sulfide surface. Sample…
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What happens when nature and cities overlap
Editor’s note: A version of this story appeared in CNN’s Wonder Theory science newsletter. To get it in your inbox, sign up for free here. CNN — More than half of the world’s population live in urban areas where nature can feel like a distant concern. Thriving ecosystems do, however, exist within our cities — even…
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Why Mexico Wants You to Virtually Adopt an Axolotl Salamander
It can regenerate bits of its body. Ancient Mexicans revered it as a mischievous, shape-shifting god. They named it axolotl — translation: “water monster” — and it’s a “salamander with a Mona Lisa smile,” reports the Washington Post, “an alien-looking creature with a permanent grin and a crown of feathery gills”. But while there’s over…
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Kishida Says Japan Will Not Construct New Coal Power Plants at COP28
APPrime Minister Fumio Kishida delivers his speech during a COP28 meeting in Dubai on Friday. By Hirotaka Kuriyama / Yomiuri Shimbun Staff Writer 17:01 JST, December 2, 2023 DUBAI — Prime Minister Fumio Kishida said Japan will not build any new coal-fired power plants that do not have greenhouse gas emission reduction measures in place during…
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COP28: Earth’s frozen zones are in trouble – we’re already seeing the consequences
As this year’s UN climate summit (COP28) gets under way in Dubai, scientists studying Earth’s frozen regions have been delivering an urgent call for action to policy makers. But is anyone listening? Throughout 2023, we have been warning of an impending series of crises occurring in the cryosphere – polar ice sheets, ice shelves, sea…
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COP28: Earth’s frozen zones are in trouble – we’re already seeing the consequences
As this year’s UN climate summit (COP28) gets under way in Dubai, scientists studying Earth’s frozen regions have been delivering an urgent call for action to policy makers. But is anyone listening? Throughout 2023, we have been warning of an impending series of crises occurring in the cryosphere – polar ice sheets, ice shelves, sea…
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NASA Probe to Observe Near-Earth Asteroid’s 2029 Close Encounter
NASA’s Goddard Space Flight Center / Handouts via ReutersThe NASA spacecraft OSIRIS-APEX hovers over the surface of the near-Earth asteroid Apophis, as shown in a still image from NASA artist’s video rendering. Reuters 15:56 JST, December 2, 2023 About 5½ years from now, astronomers calculate, an asteroid about as wide as the Empire State Building will…
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NASA Probe to Observe Near-Earth Asteroid’s 2029 Close Encounter
NASA’s Goddard Space Flight Center / Handouts via ReutersThe NASA spacecraft OSIRIS-APEX hovers over the surface of the near-Earth asteroid Apophis, as shown in a still image from NASA artist’s video rendering. Reuters 15:56 JST, December 2, 2023 About 5½ years from now, astronomers calculate, an asteroid about as wide as the Empire State Building will…