Results 141 to 150 of about 1,231,228 (263)

Social support networks and life cycle stage of Venezuelan immigrant families. [PDF]

open access: yesRev Bras Enferm, 2023
Rosa MPCD   +6 more
europepmc   +1 more source

Identification of best available thermal energy storage compounds for low-to-moderate temperature storage applications in buildings [PDF]

open access: yes, 2018
Award-winning paper at III International Congress and V National on Sustainable Construction and Eco-Efficient Solutions (CICSE) March 2017Over the last 40 years different thermal energy storage materials have been investigated with the aim of enhancing ...
Barrios Padura, Ángela   +4 more
core  

CONSTRUÇÃO DE UM DISPOSITIVO DE PRESSURIZAÇÃO A VÁCUO PARA A PREPARAÇÃO DE FASES ESTACIONÁRIAS MONOLÍTICAS VIA PROCESSO SOL-GEL

open access: yesQuímica Nova, 2015
The filling of capillaries via the sol-gel process is growing. Therefore, this technical note focuses on disseminating knowledge acquired in the Group of Analytical Chemistry and Chemometrics over seven years working with monolithic stationary phase preparation in fused silica capillaries.
Ribeiro, Sandro Pereira   +4 more
openaire   +3 more sources

Obtención de Cordierita por Sol-Gel a partir de fuentes nacionales cubanas

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2003
For cordierite synthesis through the Sol-Gel method, the sodium silicate obtained from the dissolution of a solid residue coming from the aluminum sulfate production based on kaolin, was used. The sources of magnesium and aluminum were obtained using the
Pacheco, P.   +4 more
doaj  

Aktivitas Ekstrak Etanol Daun Bintaro (Cerbera odollam Gaertn.) Terhadap Bakteri Shigella sonnei Dan Staphylococcus saprophyticus Beserta Bioautografinya [PDF]

open access: yes, 2013
Bintaro (Cerbera odollam Gaertn.) merupakan tanaman penaung yang sering ditemukan di pinggir-pinggir jalan. Tanaman ini memiliki aktivitas sebagai analgesik, antikonvulsan, kardiotonik, aktivitas hipotensi, antikanker, antioksidan, antifungi, antilarva ...
, Ika Trisharyanti DK, M.Farm., Apt.   +1 more
core  

Detecção Simultânea por HPLC/UV de Sulfonamidas em Leite Utilizando Extração por Sorção em Fase de Tecido

open access: yesSemina: Ciências Exatas e Tecnológicas
Foi empregada a técnica de extração por sorção em fase de tecido para a remoção simultânea de sulfametazina e sulfametoxazol em leite. Para tanto, procedeu-se ao revestimento de um tecido de algodão com uma solução sol-gel de polietilenoglicol, a fim de ...
Glenda Máris Mesquita De Filippis   +2 more
doaj   +1 more source

Caracterización microestructural de materiales base cemento mediante ensayos destructivos (Parte I) [PDF]

open access: yes, 2008
El objetivo principal del presente trabajo ha sido la caracterización microestructural de materiales base cemento mediante la aplicación de ensayos destructivos, para obtener una descripción detallada de las características físicas y químicas de dichos ...
Anaya Velayos, José Javier   +2 more
core   +3 more sources

VALIDASI METODE KROMATOGRAFI LAPIS TIPIS (KLT)-DENSITOMETRI UNTUK PENETAPAN KADAR β-KAROTEN DALAM TABLET KUNYAH EKSTRAK Spirulina platensis

open access: yesJIIS: Jurnal Ilmiah Ibnu Sina, 2020
Validasi Metode Analisis penentuan β-karoten dalam tablet kunyah ekstrak Spirulina platensis perlu dilakukan untuk menjamin mutu dan kualitas Tujuan penelitian ini adalah membuktikan validitas metode KLT-Densitometri untuk penetapan kadar β ...
Siti Fatmawati Fatimah   +4 more
doaj  

Isolation and Identification of Antioxidant Compounds in Fern Stems (Alsophila Glauca J.sm) Using Dpph Method (2,2-diphenyl-1-picrylhydrazyl) [PDF]

open access: yes, 2013
Oxidative stress induced by the radicals have been known to affect the occurrence of various degenerative disease. In order to search natural antioxidant compounds, it had been studied the isolation and identification of antioxidant compounds in fern ...
Setyowati, E. P. (Erna)   +2 more
core  

Esteróles Libres Monohidroxilados De La Esponja Marina Agelas schmidti (Wilson, 1902)

open access: yesRevista Colombiana de Química, 2010
De la esponja marina Ágelas schmidti recolectada en la bahía de Santa Marta (Caribe Colombiano), se aisló por cromatografía en columna sobre silica gel la fracción esterólica.
Carmenza Duque   +4 more
doaj  

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