Results 61 to 70 of about 286,385 (277)
This mini-review offers a comprehensive overview of the advancements made over the last three years in utilizing highly polar s-block organometallic reagents (specifically, RLi, RNa and RMgX compounds) in organic synthesis run under bench-type reaction ...
María Jesús Rodríguez-Álvarez +6 more
doaj +1 more source
Low-gravity penetrometry of asteroids and comets [PDF]
Extract from introduction: There are a number of contexts in which space hardware may interact mechanically with the solid material present in a low-gravity environment at the surface of an asteroid or comet, possibly penetrating to some depth and ...
Ball, Andrew J.
core
The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer +7 more
wiley +1 more source
Background Understanding the mechanisms promoting or constraining morphological diversification within clades is a central topic in evolutionary biology.
Gabriele Sansalone +5 more
doaj +1 more source
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero +5 more
wiley +1 more source
Sarcoma Epitelióide: análise de 15 casos tratados no INCA
Objetivo: Descrever os aspectos epidemiológicos, clínicos, anatomopatológicos e o tratamento dos pacientes com sarcoma epitelióide matriculados no Instituto Nacional de Câncer, comparando-os com os resultados da literatura. Pacientes e Método: Revisão do
Luiz Fernando Nunes +5 more
doaj +1 more source
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata +13 more
wiley +1 more source
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
Regenerative Cu/La zeolite supported desulfurizing sorbents [PDF]
Efficient, regenerable sorbents for removal of H2S from fluid hydrocarbons such as diesel fuel at moderate condition comprise a porous, high surface area aluminosilicate support, suitably a synthetic zeolite, and most preferably a zeolite having a free ...
Sharma, Pramod K., Voecks, Gerald E.
core +1 more source

