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ALASKA’S ALL-TIME COLD RECORD TURNS 50

Redazione
(AGENPARL) – WASHINGTON (DC), ven 22 gennaio 2021 By Ned Rozell Jan. 23, 2021, is the 50th anniversary of Alaska’s all-time cold temperature: minus 80 degrees Fahrenheit, recorded by a weather observer at Prospect Creek Camp. Now a clearing in the woods, Prospect Creek Camp was located near the confluence......
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A NEW TYPE OF DUAL TEMPERATURE SENSITIVE TRIBLOCK POLYMER (P(AM-CO-AN)-B-PDMA-B-PNIPAM) AND ITS SELF-ASSEMBLY AND GEL BEHAVIOR

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), mar 19 gennaio 2021 A dual temperature-responsive triblock polymer (Poly(N-isopropyl acrylamide)-block-poly(N,N-dimethyl acrylamide)-block-poly(acrylamide-co-acrylonitrile) (P(AM-co-AN)-b-PDMA-b-PNIPAM) (NDAA) was obtained by sequential reversible addition–fragmentation chain transfer (RAFT) polymerization ,with the uncharged UCST temperature-sensitive block P (AM-co-AN) and the classic LCST-type temperature-sensitive block PNIPAM. This well-defined thermo-responsive copolymer with tunable......
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CAN CHEMISTRY THAW THE VACCINE COLD CHAIN?

Redazione
(AGENPARL) – CAMBRIDGE (UNITED KINGDOM), mar 19 gennaio 2021 As the world celebrates the arrival of vaccines to protect against Covid-19, the logistics of distributing them is under the spotlight as never before. It’s a delicate balancing act – both heat and excessive cold damage vaccines. Keeping vaccines at just......
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ALTERNATE CYCLES OF CO2 STORAGE AND IN SITU HYDROGENATION TO CH4 ON NI-NA2CO3/AL2O3: INFLUENCE OF PROMOTER ADDITION AND CALCINATION TEMPERATURE

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), lun 18 gennaio 2021 Alternate cycles of CO2 adsorption and in situ hydrogenation to CH4 using dual function materials (DFM) allows eliminating the intermediate and expensive CO2 purification step. Several DFMs with composition 10%Ni-10%Na2CO3 have been synthesized by wet impregnation and subsequent calcination under extended......
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INSIGHTS ON THE CATALYTIC BEHAVIOUR OF SULFONIC ACID-FUNCTIONALIZED IONIC LIQUIDS (ILS) IN TRANSESTERIFICATION REACTIONS – VOLTAMMETRIC CHARACTERIZATION OF SULFONIC TASK-SPECIFIC ILS WITH BISULFATE ANIONS

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), sab 16 gennaio 2021 This work shows for the first time the link between the amount of free sulfuric acid (as detected by cyclic voltammetry) and the activity of sulfonic-acid-functionalized ionic liquids (ILs) as acid catalysts for a transesterification reaction, and demonstrates that sulfonic acid......
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CADMIUM AND MANGANESE HYPOPHOSPHITE PEROVSKITES TEMPLATED BY FORMAMIDINIUM CATIONS: DIELECTRIC, OPTICAL AND MAGNETIC PROPERTIES

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), sab 16 gennaio 2021 The recently discovered hypophosphite perovskites are promising functional materials. This contribution is devoted to the structural, thermal, dielectric, Raman and optical studies of a new hybrid organic-inorganic perovskite, [FA]Cd(H2POO)3 (FA= formamidinium, NH2CHNH2+). We also report the thermal, magnetic, dielectric and optical......
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2020 – WARMEST YEAR SINCE FINLAND STARTED KEEPING RECORDS

Redazione
(AGENPARL) – FINLAND, mar 12 gennaio 2021 The record-warm year can be explained by the very mild winter periods which raised the average temperature. According to preliminary statistics of the Finnish Meteorological Institute, the average temperature in Finland reached a record high – about 4.8 degrees. This exceeds the previous......
Agenparl English Educazione Scienza e Tecnologia Social Network

REVERSIBLE TEMPERATURE-DEPENDENT PHOTOLUMINESCENCE IN A SEMICONDUCTOR QUANTUM DOT FOR DEVELOPMENT OF SMARTPHONE-BASED OPTICAL THERMOMETER

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), ven 08 gennaio 2021 Photoluminescence (PL) intensity based non-contact optical temperature sensors are in great demand due to their non-contact natures, rapid response, sensitivity, thermal and chemical stability at different environmental conditions. However, here reversible temperature dependent PL emission quenching properties of chemically synthesized Mn2+......
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INSIGHT INTO THE MECHANISM OF BORON-DOPING OF CARBON AEROGEL FOR ENHANCING THE ACTIVITY OF LOW-TEMPERATURE SELECTIVE CATALYTIC REDUCTION OF NO WITH NH3

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), ven 08 gennaio 2021 Boron-doping of carbon aerogel (BCA) was enabled by incorporating phenylboronic acid in the sol-gel process into the organic gel from resorcinol-formaldehyde and the role of boron-doping on the catalytic activity in selective reduction of NO with NH3 (NH3-SCR) was investigated. Results......
Agenparl English Educazione Salute Scienza e Tecnologia Social Network

COOLING VESTS ALLEVIATE PERCEPTUAL HEAT STRAIN PERCEIVED BY COVID-19 NURSES

Redazione
(AGENPARL) – WORCESTER (MASSACHUSETTS), ven 08 gennaio 2021 IMAGE: Cooling Illustration view more  Credit: Radboudumc Wearing cooling vests during a COVID-19 shift ensures that nurses experience less heat during their work. During their shifts, nurses wear protective clothing for three hours in a row, during which the temperature can rise to......

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