Results 51 to 60 of about 918 (176)

Comparación de la actividad catalítica de Ti-MCM-41 y Ti-BETA en la epoxidación de limoneno

Revista Facultad de Ingeniería Universidad de Antioquia, 2002
Se sintetizaron Ti-MCM-41 y Ti-BETA y su actividad catalítica de ambos materiales se comparó en la epoxidación de limoneno, utilizando peróxido de hidrógeno (H202) como agente oxidante.
Jairo Antonio Cubillos-Lobo, Lina María González-Rodríguez, Consuelo Montes de Correa   +2 more
doaj   +1 more source

Nahezu unendlich lange Polymere mit Ge=Ge‐Doppelbindungen

Angewandte Chemie, Volume 136, Issue 51, December 16, 2024.
Polymere mit Ge=Ge‐Doppelbindungen im σ,π‐Konjugationspfad werden über die Metathese schwererer acyclischer Diene (HADMET) aus Bis(digermenen) erhalten. Hohe Löslichkeit und Dispersionswechselwirkungen zwischen den Ketten ermöglichen nahezu unendliche Ketten und die Abscheidung als dünne Schichten mit geordneten lamellaren Bündeln.
Anna‐Lena Thömmes, Thomas Büttner, Bernd Morgenstern, Oliver Janka, Guido Kickelbick, Bart‐Jan Niebuur, Tobias Kraus, Markus Gallei, David Scheschkewitz   +8 more
wiley   +1 more source

Drying study of siloxane-PMMA hybrid materials prepared by the sol-gel process

Eclética Química, 2018
Híbridos siloxano-PMMA apresentando ligações covalentes entre as fases orgânica e inorgânica foram preparados a partir do processo sol-gel. O efeito da fração em massa de fase siloxano no mecanismo de secagem dos géis a 50oC foi estudado através de ...
Ana Paula Sacco, Karim Dahmouche, Celso Valentim Santilli, Sandra Helena Pulcinelli   +3 more
doaj   +1 more source

S3‐Leitlinie: Diagnostik und Therapie der epidermalen Nekrolyse (Stevens‐Johnson‐Syndrom und toxisch epidermale Nekrolyse) – Teil 2: Supportive Therapie von EN im akuten und postakuten Stadium

JDDG: Journal der Deutschen Dermatologischen Gesellschaft, Volume 22, Issue 11, Page 1576-1595, November 2024.
Zusammenfassung Stevens‐Johnson‐Syndrom und toxisch epidermale Nekrolyse (SJS/TEN) sind seltene, in erster Linie arzneimittelinduzierte, akut lebensbedrohliche Erkrankungen der Haut und Schleimhäute. SJS und TEN werden heute als Varianten einer Krankheitsentität mit unterschiedlichem Schweregrad betrachtet, die als epidermale Nekrolyse (EN) bezeichnet ...
Maren Paulmann, Ruben Heuer, Thorsten Annecke, Björn Behr, Katharina Boch, Anja M. Boos, Knut Brockow, Lars E. French, Jochen Gille, Verena Gundlach, Bernd Hartmann, Peter Höger, Silke C. Hofmann, Tobias Klein, Marcus Lehnhardt, Yvonne Liß, Philip Maier, Philipp Mandel, Nicos Marathovouniotis, Finnja Marlok, Hans Mittelviefhaus, Uwe Pleyer, Marie Pradeau, Katharina Rall, Siegbert Rieg, Heike Rittner, Frank Sander, Stefan Schnitzler, Christina Schut, Annette Stolle, Artem Vorobyev, Bettina Wedi, Johannes Weiss, Maximilian Zepp, Mirjana Ziemer, Maja Mockenhaupt, Alexander Nast   +36 more
wiley   +1 more source

Unravelling the unusual: chromosome elimination, nondisjunction and extra pollen mitosis characterize the B chromosome in wild sorghum

New Phytologist, Volume 243, Issue 5, Page 1840-1854, September 2024.
Summary The B chromosomes exhibit diverse behaviour compared with conventional genetic models. The capacity of the B chromosome either to accumulate or to be eliminated in a tissue‐specific manner is dependent on biological processes related to aberrant cell division(s), but here yet remains compatible with normal development.
Miroslava Karafiátová, Tereza Bojdová, Magdaléna Stejskalová, Natália Harnádková, Vinod Kumar, Andreas Houben, Jianyong Chen, Alžběta Doležalová, David Honys, Jan Bartoš   +9 more
wiley   +1 more source

High‐Throughput, Label‐Free Detection of DNA Origami in Single‐Cell Suspensions Using origamiFISH‐Flow

Small, Volume 20, Issue 35, August 28, 2024.
origamiFISH‐Flow is a new technique to detect DNA origami in single cells isolated from either culture or primary tissues. This technique, which uses flow cytometry, offers enhanced detection sensitivity while alleviating the need for structure‐specific labeling with fluorescent dyes.
Shana Alexander, Wendy Xueyi Wang, Chung‐Yi Tseng, Travis R. Douglas, Leo Y.T. Chou   +4 more
wiley   +1 more source

Aspectos Morfológicos e Relação Estrutura-Propriedades de Poliestireno de Alto Impacto

Polímeros, 2001
A tenacificação da matriz vítrea de poliestireno (PS) pela adição de borracha polibutadiênica, que tem como conseqüência um aumento de sua resistência ao impacto, origina um polímero com características singulares, o Poliestireno de Alto Impacto (HIPS ...
Grassi Vinícius G., Forte Maria Madalena C., Dal Pizzol Marcus F.   +2 more
doaj  

Microwave assisted sol–gel synthesis of titanium dioxide using hydrochloric and acetic acid as catalysts

Boletín de la Sociedad Española de Cerámica y Vidrio, 2019
Titanium dioxide (TiO2) was synthesized by microwave assisted sol–gel. The effect of the acid type used as catalyst on the phase transformation of TiO2 was investigated (hydrochloric or acetic acid).
M. Andrade-Guel, L. Díaz-Jiménez, D. Cortés-Hernández, C. Cabello-Alvarado, C. Ávila-Orta, P. Bartolo-Pérez, P. Gamero-Melo   +6 more
doaj   +1 more source

Back to the future for drought tolerance

New Phytologist, Volume 242, Issue 2, Page 372-383, April 2024.
Summary Global agriculture faces increasing pressure to produce more food with fewer resources. Drought, exacerbated by climate change, is a major agricultural constraint costing the industry an estimated US$80 billion per year in lost production. Wild relatives of domesticated crops, including wheat (Triticum spp.) and barley (Hordeum vulgare L.), are
Luis M. Guadarrama‐Escobar, James Hunt, Allison Gurung, Pablo J. Zarco‐Tejada, Sergey Shabala, Carlos Camino, Pilar Hernandez, Mohammad Pourkheirandish   +7 more
wiley   +1 more source

Pengaruh Variasi Kecepatan Stiring & Temperatur Sintering Terhadap Perubahan Struktur Mikro & Fase Material Sensor Gas Tio2

Jurnal Teknik ITS, 2014
Penelitian material untuk sensor gas ini menggunakan bahan dasar TiO2 dan zat pelarut H2SO4 pekat 98% . Metode pembentuk sol-gel dilakukan dengan sampel di stiring menggunakan magnetic stirrer selama 2,5 jam, kecepatan 600, 700 dan 800 rpm dengan ...
Della Dewi Ratnasari, h Purwaningsih
doaj