ARTICLES

Filter  
Active filters 0
Remove
  

Refine your searches by:

Collections
Education
Social Sciences
Agronomy and forestry
Literature
Languages
Research
Technology
Biology
Environment
Economy
all records (75)

Languages
English
Portuguese
Spanish
French
German

Countries
Indonesia
Brazil
USA
Spain
South Africa
Ukraine
Italy
Denmark
India
Mexico
all records (79)

Years
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
all records (24)

Filter  
 
117.723  Articles
1 of 11.773 pages  |  10  records  |  more records»
The phenomenon of silting threatens hydrotechnical infrastructure Algerian, Thus 65 million m3 of silt are deposited annually in dams. To predict the decrease in useful capacity and the life of a dam, studying the spatio-temporal evolution of siltation in... see more

The phenomenon of silting threatens hydrotechnical infrastructure Algerian, Thus 65 million m3 of silt are deposited annually in dams. To predict the decrease in useful capacity and the life of a dam, studying the spatio-temporal evolution of siltation in... see more

Herein, we describe a simple, highly efficient and environmentally friendly protocol for the synthesis of benzimidazoles, benzoxazoles, benzothiazoles,  3,4-dihydropyrimidin-2-ones/ thiones and quinoxalines derivatives using hybrid crystal NH3(CH2)6N... see more

Because of the positive role of parental involvement on youth academic achievement, many parents and school teachers desire more collaboration between the family and the school. However, obstacles often arise prohibiting such positive interactions. In thi... see more

Because of the positive role of parental involvement on youth academic achievement, many parents and school teachers desire more collaborations between the family and the school. However, obstacles often arise prohibiting such positive interactions. In th... see more

Context/Background: Evidence shows that addressing the unmet need for FP of vulnerable groups such as rural-to-urban migrants is another alternative to lowering fertility in developing countries. This study examines how migration affects unmet need in Cot... see more

Context/Background: In developing countries, fertility is usually higher in rural than urban areas. This is partly due to lower access to and utilization of reproductive health services in rural areas. However, migration to cities may alter the fertility ... see more

A new six-armed compounds consist of benzene ring as a central core substituted with aromatic ring and three rod-like armed of 2-chloro-4,6-bis(dodecyloxy)-1,3,5-triazine as the peripheral arms unit which obtained by sequential nucleophilic substitution o... see more

The aim of this paper was synthesis of bentonite nano-composites from bentonitic clay. Calcium bentonitic clay obtained from El Barqan area northern Egypt was activated by Na2CO3 and purified. Both raw and purified bentonitic clay were characterized by XR... see more

1 of 11.773 pages  |  10  records  |  more records»