Results 11 to 20 of about 315,467 (307)

Young children's perspectives of time: New directions for co‐constructing understandings of quality in ECEC

British Educational Research Journal, EarlyView., 2023
Abstract Children's relationship with time in preschools is an under‐researched area. Young children rarely know how to measure time using a clock, but their experiences of time may contribute to understanding children's well‐being and debates about quality in preschools.
Kristín Dýrfjörð, Anna Magnea Hreinsdóttir, Adrijana Visnjic‐Jevtic, Alison Clark   +3 more
wiley   +1 more source

Long-term Evaluation of Temporal Variation in Groundwater Physicochemical Quality: A Case Study of Erbil City, Iraq (2003 – 2015) [PDF]

Eurasian Journal of Science and Engineering, 2018
Groundwater resources within Erbil City are facing a growing decline during the last decade as a result of increased water consumption, and climate change.
Hayder Mohammed Issa
doaj   +1 more source

Groundwater hydrogeochemical characterization and quality assessment based on integrated weight matter-element extension analysis in Ningxia, upper Yellow River, northwest China

Ecological Indicators, 2022
Assessing groundwater quality and identifying pollutant risks are essential for managing groundwater resources in arid and semi-arid regions. An analysis of the hydrochemical characteristics, controlling factors, and pollutant characteristics of the ...
Xiaodong Wang, Wende Zheng, Wei Tian, Yanming Gao, Xiaozhuo Wang, Yongqiang Tian, Jianshe Li, Xueyan Zhang   +7 more
doaj   +1 more source

Seasonal dynamics of closed shallow lakes nutrient status controlled by lacustrine groundwater discharge [PDF]

Hydrology and Earth System Sciences
Lacustrine groundwater discharge (LGD) and its associated nitrogen (N) and phosphorus (P) inputs are increasingly recognized as the critical drivers of lake eutrophication.
X. Sun, X. Sun, Y. Du, Y. Du, H. Tian, H. Tian, J. Xu, J. Xu, H. Shi, H. Shi, Y. Liu, Y. Liu, Y. Deng, Y. Deng, Y. Gan, Y. Gan, Y. Wang, Y. Wang   +17 more
doaj   +1 more source

A novel method to determine buffer strip effectiveness on deep soils [PDF]

, 2012
Unfertilized buffer strips (BS) generally improve surface water quality. High buffer strip effectiveness (BSE) has been reported for sloping shallow aquifers, but experimental data for plain landscapes with deeply permeable soils is lacking.
Groenendijk, P., Groenigen, J.W., van, Heesmans, H.I.M., Heinen, M., Noij, I.G.A.M., Thissen, J.T.N.M.   +5 more
core   +6 more sources

Technical note: A model of chemical transport in a wellbore–aquifer system [PDF]

Hydrology and Earth System Sciences
Wellbore is proven to be the only effective way of delivering chemicals to a target aquifer during a tracer test or aquifer remediation. The volume of original water in the operational well is a critical parameter affecting the concentration of injected ...
Y. Gan, Y. Gan, Q. Wang, Q. Wang
doaj   +1 more source

Mapping of Groundwater Flow Pattern and its Quality Index based on Microbiological Parameters in Klojen District, Malang City, East Java, Indonesia

Civil and Environmental Science Journal, 2021
Groundwater is one source of fulfilling water needs for the Klojen district, the most populous district in Malang City. Population density affects the condition of groundwater quality because it causes pollution.
Veronika Yulia Permata, Hari Siswoyo, Riyanto Haribowo   +2 more
doaj   +1 more source

Groundwater hydrogeology and quality in Helwan area and its vicinities in Egypt

Water Science, 2019
The study area includes Helwan city and its vicinities, south of Greater Cairo, between latitudes 29° 40ʹ and 29° 56ʹ N and longitudes 31° 15ʹ and 31° 24ʹ E, east of the River Nile. The main objective was to properly manage groundwater to protect it from
Samir R. Awad
doaj   +1 more source

Assessment of groundwater suitability for drinking and irrigation purpose using statistical and geospatial techniques: a review [PDF]

The Holistic Approach to Environment, 2023
Water is a vital source for all living individuals on earth. The consumption of fresh water has increased rapidly in recent years. Industrialization, urbanization, and population growth have resulted in deterioration of surface and groundwater quality ...
Aishverya Agrawal, Devendra Dohare
doaj   +1 more source

Evaluation of Groundwater Quality Using Groundwater Quality Index (GWQI) in Sharjah, UAE [PDF]

E3S Web of Conferences, 2021
The rapid growth in the world population resulted in an increase of the freshwater needs in many sectors. Groundwater is the most important freshwater source specially for arid and semi-arid regions due to lack of surface water sources and low precipitation rates in those regions.
Kayemah Naseraldin, Al-Ruzouq Rami, Shanableh Abdallah, Gokhan Yilmaz Abdullah   +3 more
openaire   +2 more sources