Results 71 to 80 of about 1,800,963 (373)

Greener organic synthetic methods: Sonochemistry and heterogeneous catalysis promoted multicomponent reactions

Ultrasonics Sonochemistry, 2021
Ultrasound is an essential technique to improve organic synthesis from the point of view of green chemistry, as it can promote better yields and selectivities, in addition to shorter reaction times when compared to the conventional methods. Heterogeneous
Ingrid V. Machado, Jhonathan R.N. dos Santos, Marcelo A.P. Januario, Arlene G. Corrêa   +3 more
doaj   +1 more source

A Perspective Distilled from Seventy Years of Research [PDF]

, 2009
Physical organic chemistry might be regarded as officially recognized as a distinct discipline through the publication of L. P. Hammett’s book of that title, although substantial earlier work can be traced back to the turn of the 20th century.
Roberts, John D.
core   +1 more source

Bioavailability in soils [PDF]

, 2011
The consumption of locally-produced vegetables by humans may be an important exposure pathway for soil contaminants in many urban settings and for agricultural land use.
A Göthberg, A Marin, ACC Plette, AJ Maclean, AL Nolan, AL Nolan, B Buchter, BD Traulsen, BE Davies, BJ Alloway, BS Haslett, BS Shane, C Cobbett, CA Grant, CA Grant, CA Grant, CH Williams, CJ Cappon, CL Luo, CN Geng, CS Hassler, CS Hassler, D Sauerbeck, D Voutsa, DE Salt, DE Salt, DJ Brus, DJ Brus, DJ Brus, DJ Hatch, DM Toro Di, DR Parker, E Brand, E Grill, E Sipter, E Smolders, E Smolders, E Smolders, E Sposito, EA Woolson, EE Cary, EJJ Kalis, F Degryse, F Degryse, F Degryse, F Degryse, F Douay, F Haghiri, FJ Zhao, G Jansson, G Sposito, GA Fleming, GM Thomas, GP Warren, GT Yuran, H Mosbaek, HCH Hahne, IM McKenna, IO Plekhanova, J Ingwersen, JA Ericksen, JC Popelka, JC Tjell, JE Eriksson, JL Hall, JL Hopper, JL Wang, JL Xu, JM Gong, JR Preer, JR Preer, JR Wang, JW Dalenberg, JW Dalenberg, KC Jones, KG Tiller, KR Dunbar, LA Sparrow, LD Tyler, LL Hendrickson, LP Weng, LP Weng, M Helal, M Krauss, M Quaghebeur, M Sobotik, MB McBride, MF Hovmand, MI Mattina, MJ McLaughlin, MJ McLaughlin, MJ McLaughlin, MJ McLaughlin, MJ McLaughlin, MJ McLaughlin, MJ McLaughlin, MJ McLaughlin, ML Adams, MR Farfel, MTF Wong, NA Maier, NA Maier, OK Vatamaniuk, PD Alexander, PFAM Römkens, PJ Florijn, PJ Florijn, PJ Florijn, PJ Florijn, PMC Antunes, PMC Antunes, PR Anderson, Q Xue, R Hough, R Rellan-Alvarez, R Vogeli-Lange, RA Efroymson, RA Khattak, RH Dowdy, RJ Bowell, RJ Reid, RJM Hudson, RL Chaney, RL Chaney, RL Chaney, RL Hough, RL Hough, RM Harrison, RN Collins, RN Reese, RP Narwal, RT Checkai, S Clemens, S Goldberg, S Goldberg, S Sauvé, S Sauvé, S Tandy, S Tandy, S Thakali, SA Barber, SDW Comber, SE Lorenz, SL Brown, SL McGowen, SN Adams, SN Whiting, SP McGrath, T Adhikari, T Cheng, T Kuboi, T Sterckeman, TL Creger, V Page, W Peijnenburg, W Vries de, W Vries de, WJ Garcia, WP Chen, X Cao, X Du, XP Wang, Y Guo, Y Nakamaru, YT Guo   +164 more
core   +2 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Advances in novel activation methods to perform green organic synthesis using recyclable heteropolyacid catalysis

Green Processing and Synthesis, 2022
Highly functionalized, high value added bioactive molecules are generally obtained by synthetic procedures that are highly selective, economical, with high atom economy, and environmentally friendly.
Ruiz Diego M., Pasquale Gustavo A., Martínez José J., Romanelli Gustavo P.   +3 more
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

FEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf, Nicholas F. Downing, Kaitlyn M. Mills, Samuel C. Metcalfe, Alexander E. Kritzer, Lindsey D. Mayo, Peter C. Hollenhorst   +6 more
wiley   +1 more source

Bioavailability of pesticides in freshwater sediments [PDF]

, 2007
In ecological risk assessment standardized sediment toxicity tests are used to predict the hazard of chemicals for sediment-living organisms. Feeding is a prerequisite in these long-term tests to avoid starvation of test organisms.
Åkerblom, Nina
core  

The organic chemistry in the innermost, infalling envelope of the Class 0 protostar L483

, 2019
Context: The protostellar envelopes, outflow and large-scale chemistry of Class~0 and Class~I objects have been well-studied, but while previous works have hinted at or found a few Keplerian disks at the Class~0 stage, it remains to be seen if their ...
Choi, Minho, Di Francesco, James, Evans II, Neal J., Jacobsen, Steffen K., Jørgensen, Jes K., Lee, Jeong-Eun   +5 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source