Results 21 to 30 of about 30,766 (221)

O USO DE AMINAS GRAXAS E SEUS DERIVADOS NA FLOTAÇÃO DE MINÉRIOS BRASILEIROS

open access: yesHolos, 2007
Os coletores catiônicos têm sido utilizados na flotação de minerais desde o final dos anos 30 e a química desses compostos é baseada nas aminas e seus derivados.
Euler Elias Neder   +1 more
doaj   +1 more source

Substituição nucleofílica aromática em 1,2-dicloro-4,5-dinitrobenzeno com aminas [PDF]

open access: yes, 2006
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.O 1,2-dicloro-4,5-dinitrobenzeno, DCDNB, reage com aminas primárias em condições de temperatura e pressão ambientes, formando produtos ...
Ricardo, Juan
core  

Exploration of the Phytochemical and Antidiabetic Properties of Teucrium polium: A Natural Asset for Type 2 Diabetes Management

open access: yesChemistryOpen, EarlyView.
Teucrium polium shows antidiabetic activity with its phytochemical composition and biological activities. The essential oil is rich in carvacrol, thymol, γ‐terpinene, and o‐cymene, while the aqueous and hydroethanolic extracts are characterized by poliumoside, verbascoside, isorhamnetin‐3‐O‐rutinoside, and apigenin‐7‐rutinoside. Antioxidant activity is
Hajar El Ouadni   +10 more
wiley   +1 more source

Empleo de microondas en la produccion de B-carbolinas con actividad biologica conocida [PDF]

open access: yes, 2010
31 p.En la síntesis de moléculas orgánicas con actividad biológica conocida, la utilización de microondas en la disminución de los tiempos de reacción, en este caso la reducción de iminas β-Carbolinas en aminas, ha otorgado significativos resultados en ...
Castillo Sandoval, Veronica   +1 more
core  

Disease–Drug–Drug Interaction of Imatinib in COVID‐19 ARDS: A Pooled Population Pharmacokinetic Analysis

open access: yesCPT: Pharmacometrics &Systems Pharmacology, Volume 14, Issue 3, Page 583-595, March 2025.
ABSTRACT Prior pharmacokinetic (PK) analysis revealed that increased alpha‐1‐acid glycoprotein (AAG) levels are associated with decreased imatinib unbound fraction in coronavirus disease 2019 (COVID‐19) patients. This study aimed to investigate the PK of total and unbound concentrations of imatinib and the metabolite N‐desmethyl imatinib in ...
Medhat M. Said   +10 more
wiley   +1 more source

Creating a multilingual assessment ecology in the classroom

open access: yesTESOL Quarterly, EarlyView.
Abstract Addressing the educational needs of bi/multilingual students in K‐12 classrooms, this study explores teachers' engagement with multilingualism in assessment practice. Drawing on fieldwork conducted with language and mathematics teachers in Ontario, Canada, the study generates empirical insight into teachers' development and use of multilingual
Saskia Van Viegen, Nancy Bell, Noah Khan
wiley   +1 more source

Acilaçao de aminas utilizando o ácido 3-acetóxi-2-naftóico:Efeito do grupo carboxilato na catálise intramolecular [PDF]

open access: yes, 2009
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.O estudo de modelos enzimático do tipo não mimético de catálise intramolecular viabiliza o desenvolvimento de catalisadores que sejam ...
Vitto, Ramon
core  

A Femininomenon: Leadership Development Through Representation On‐Screen

open access: yesNew Directions for Student Leadership, Volume 2025, Issue 185, Page 67-74, Spring 2025.
ABSTRACT Historically, films and television centered men, but there has recently been a shift toward focusing on women and people of color (and women of color) in leading roles. Films and shows like Black Panther, Barbie, and Ashoka reflect this trend, offering more complex stories and diverse representation.
Kathleen Callahan
wiley   +1 more source

Transformaciones selectivas de ácidos gamma-alquinoicos promovidas por paladio. [PDF]

open access: yes, 2014
Desarrollo de un sistema catalítico sencillo capaz de promover la transformación de ácidos gamma-alquinoicos en gamma-cetoamidas a través de un proceso tándem catalizado por derivados de ...
Pérez Iglesias, David
core  

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