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Diverse Coordination Numbers and Geometries in Pyridyl Adducts of Lanthanide(III) Complexes Based on β-Diketonate
Published 2021-09-01“…Ten mononuclear rare earth complexes of formula [La(btfa)<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>] (<b>1</b>), [La(btfa)<sub>3</sub>(4,4′-Mt<sub>2</sub>bipy)] (<b>2</b>), [La(btfa)<sub>3</sub>(4,4′-Me<sub>2</sub>bipy)<sub>2</sub>] (<b>3</b>), [La(btfa)<sub>3</sub>(5,5′-Me<sub>2</sub>bipy)<sub>2</sub>] (<b>4</b>), [La(btfa)<sub>3</sub>(terpy)] (<b>5</b>), [La(btfa)<sub>3</sub>(phen)(EtOH)] (<b>6</b>), [La(btfa)<sub>3</sub>(4,4′-Me<sub>2</sub>bipy)(EtOH)] (<b>7</b>), [La(btfa)<sub>3</sub>(2-benzpy)(MeOH)] (<b>8</b>), [Tb(btfa)<sub>3</sub>(4,4′-Me<sub>2</sub>bipy)] (<b>9</b>) and (Hpy)[Eu(btfa)<sub>4</sub>] (<b>10</b>), where btfa = 4,4,4-trifuoro-1-phenylbutane-1,3-dionato anion, 4,4′-Mt<sub>2</sub>bipy = 4,4′-dimethoxy-2,2′-bipyridine, 4,4′-Me<sub>2</sub>bipy = 4,4′-dimethyl-2,2′-bipyridine, 5,5′-Me<sub>2</sub>bipy = 5,5′-dimethyl-2,2′-bipyridine, terpy = 2,2′:6′,2′-terpyridine, phen = 1,10-phenathroline, 2-benzpy = 2-(2-pyridyl)benzimidazole, Hpy = pyridiniumH<sup>+</sup> cation) have been synthesized and structurally characterized. …”
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141823
Formamide-Based Post-impact Thermal Prebiotic Synthesis in Simulated Craters: Intermediates, Products and Mechanism
Published 2022-05-01“…These processes may have influenced not only the geochemical environment of, e.g., early Mars and other planets, but also the peculiar prebiotic chemistry on early Earth. Here, we present a synergistic experimental and computational investigation of the intermediates of chemical reactions of the formamide-based synthesis of canonical and non-canonical nucleobases by thermochemistry in hot hydrothermal crater environments. …”
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Landslide and glacial lake outburst flood hazard in the Chucchún River basin, Cordillera Blanca, Peru
Published 2015-11-01“…Mapa nebezpečí vzniku sesuvů byla vytvořena na základě inventarizace sesuvů s pomocí dostupných snímků GoogleEarth s vysokým rozlišením. K vymapovaným svahovým deformacím byly na základě zkušeností ze studované oblasti a morfologických poměrů, dokresleny oblasti předpokládaného nejzazšího dosahu jednotlivých svahových deformací. …”
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141828
Characterizing tundra snow sub-pixel variability to improve brightness temperature estimation in satellite SWE retrievals
Published 2022-01-01“…SMRT simulations using a CV<span class="inline-formula"><sub>sd</sub></span> of 0.9 best matched CV<span class="inline-formula"><sub>sd</sub></span> observations from spatial datasets for areas <span class="inline-formula"><i>></i></span> 3 km<span class="inline-formula"><sup>2</sup></span>, which is comparable to the 3.125 km pixel size of the Equal-Area Scalable Earth (EASE)-Grid 2.0 enhanced resolution at 37 GHz.…”
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HEAT FLOW DENSITY DISTRIBUTION MAP OF THE FOUNDATION ROOF IN THE EASTERN PART OF THE TOMSK REGION
Published 2022-04-01“…Determining the value of the heat flow density from the roof of the foundation is complicated by taking into account many processes occurring both in the bowels and on the surface of the Earth. Therefore, an integral approach was used in the calculations, allowing these processes to be taken into account with the help of conjugated structural-tectonic reconstructions. …”
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141830
Cropland abandonment between 1986 and 2018 across the United States: spatiotemporal patterns and current land uses
Published 2024-01-01“…We mapped the location and time of abandonment from annual cropland layers we created in Google Earth Engine from 30 m resolution Landsat imagery using an automated classification method and training data from the U.S. …”
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141831
Stratospheric contraction caused by increasing greenhouse gases
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141835
What are the toxicity thresholds of chemical pollutants for tropical reef-building corals? A systematic review
Published 2023-03-01“…Abstract Background Tropical coral reefs cover only ca. 0.1% of the Earth’s surface but harbour exceptional marine biodiversity and provide vital ecosystem services to millions of people living nearby. …”
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141838
Comparing the Ability of Conventional and Digital Soil Maps to Explain Soil Variability using Diversity Indices
Published 2017-06-01“…Using aerial photo interpretation, geology map, google earth image and field observations primary soil map was created. …”
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141839
Potentials and barriers to land-based mitigation technologies and practices (LMTs)—a review
Published 2023-01-01Get full text
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Mysteriously high Δ<sup>14</sup>C of the glacial atmosphere: influence of <sup>14</sup>C production and carbon cycle changes
Published 2020-07-01“…The computationally efficient Bern3D Earth system model of intermediate complexity, designed for long-term climate simulations, allows us to address a very fundamental but still elusive question concerning the atmospheric <span class="inline-formula">Δ<sup>14</sup>C</span> record: how can we explain the persistence of relatively high <span class="inline-formula">Δ<sup>14</sup>C</span> values during the millennia after the Laschamp event? …”
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