Results 121 to 130 of about 28,264 (303)

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal, Martha Eugenia Albores Velasco, René O. Vargas, Rubén Mil‐Martínez   +3 more
wiley   +1 more source

Climatic control on the peak discharge of glacier outburst floods

, 2007
Lakes impounded by natural ice dams occur in many glacier regions. Their sudden emptying along subglacial paths can unleash similar to 1 km(3) of floodwater, but predicting the peak discharge of these subglacial outburst floods ('jokulhlaups') is ...
Liu, S., Mavlyudov, B., Ng, F.S.L., Wang, Y.   +3 more
core   +1 more source

Synthesis and characterization of a highly hydrophilic nanocomposite for wettability alteration, water/oil interfacial tension reduction, and enhanced oil recovery

The Canadian Journal of Chemical Engineering, EarlyView.
Mechanism of wettability alteration, interfacial tension reduction, and oil recovery by novel nanocomposite. Abstract The development of stable nanofluids (NFs) for enhanced oil recovery (EOR) relies on optimizing interactions between reservoir rocks and fluids.
Ehsan Jafarbeigi, Ehsan Kamari, Amir H. Mohammadi   +2 more
wiley   +1 more source

Clathrate hydrate crystallization

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley   +1 more source

Icequakes coupled with surface displacements for predicting glacier break-off

, 2010
A hanging glacier at the east face of Weisshorn (Switzerland) broke off in 2005. We were able to monitor and measure surface motion and icequake activity for 25 days up to three days prior to the break-off.
Allen, Anifrani, Didier Sornette, Jérome Faillettaz, Kuksenko, Lüthi, Martin Funk, O’Neel, Raymond, Röthlisberger, Sammis, Sornette, Sornette, Sornette   +13 more
core   +1 more source

Expression, Purification, and Microscopy‐Based Assays for Engineered Recombinant Tyrosinated, Detyrosinated, and Δ2 Human Tubulin

Cytoskeleton, EarlyView.
ABSTRACT Microtubules are noncovalent polymers assembled from α/β tubulin dimers. Their structure, dynamics and interaction with effectors are regulated through the expression of diverse tubulin isotypes and chemically diverse posttranslational modifications, also known as the “tubulin code.” Understanding the biophysical correlates between tubulin ...
Jiayi Chen, Agnieska Szyk, Antonina Roll‐Mecak   +2 more
wiley   +1 more source

Talin1 Adhesion Morphology and Colocalization With Tensin3 Are Largely Unaffected by Polyacrylamide Substrate Stiffness

Cytoskeleton, EarlyView.
ABSTRACT Cells sense the stiffness of their extracellular matrix (ECM) and adapt their behavior accordingly. We investigated how ECM stiffness affects the spatial organization of talin1, a key mechanosensitive focal adhesion protein. Using polyacrylamide (PA) hydrogels with tunable stiffnesses (0.2–188 kPa), we analyzed cell morphology, migration ...
Joanna Hajduk, Patrycja Twardawa, Sylwia Bobis‐Wozowicz, Marta Szewczyk, Zenon Rajfur, Zbigniew Baster   +5 more
wiley   +1 more source

Influence of Different Washing Hair Procedures in the Quantitative Determination of THC and THCCOOH

Drug Testing and Analysis, EarlyView.
Different hair decontamination protocols significantly affect THC quantification, with marked analyte loss—particularly after aqueous‐organic washing—whereas THCCOOH remains stable. These findings highlight the risk of misinterpretation and the need for standardized washing procedures in hair analysis.
Valentina Martini, Alessandro Raffagli, Cristiana Stramesi, Claudia Vignali, Stefania Ortu, Paolo Franceschini, Ilaria Baudone, Paolo Bucchioni, Luca Morini   +8 more
wiley   +1 more source

Recent glacier fluctuations in the inland Asia.

Journal of the Japanese Society of Snow and Ice, 1995
アジアでは比較的情報の多い中国西部と旧ソ連の氷河変動資料をまとめた.1960年代から80年代初期にかけて,コンロン山域以外は後退氷河が多く,アルタイ,天山,パミール,チーレン山域の順に北方ほどその傾向が強い.しかし,この間に中国西部やパミールでは1960-70年代に後退から前進に転じる氷河が増え,一方,旧ソ連天山やコーカサスでは後退傾向が優勢なまま,大きな変化はない.また,約30年＆sim;60年間程度の氷河変動データのある乾燥域(大陸性)の3氷河(2＆sim;4km長)と湿潤域(海洋性)の3氷河(10＆sim;13km長)について,年間末端変動距離の氷河長に対する割合の年による変化をみた.1980年代はいずれの氷河も5m/km程度までの後退範囲にあったが,毎年観測されているTs.Tyuksu氷河 ...
openaire   +2 more sources

Detection of the GH Analogue Redalsomatropin Alfa in Sports Drug Testing: Immunological Approaches and LC‐HRMS/MS

Drug Testing and Analysis, EarlyView.
After evaluating the compatibility of the GH analogue redalsomatropin alfa with approved doping control immunoassays for rhGH, it was implemented into the existing detection method for somatrogon employing affinity purification with GHR‐Fc‐conjugated magnetic beads, tryptic digestion, and LC‐HRMS/MS to allow for a specific and sensitive detection ...
Katja Walpurgis, Andreas Thomas, Jasmin Thelen, Bettina Majer, Maneera Al‐Jaber, Wadha Abushareeda, Mario Thevis   +6 more
wiley   +1 more source