Influence of Population Growth on Supply, Demand, and Quality Issues of Water Resources in the Yarmouk River Basin in Jordan

This study was carried out to investigate the influence of population growth on supply, demand, and quality issues of water resources in the Yarmouk River Basin in Jordan for twenty years. The population growth data for the years 1997 and 2017 was derived from four Jordan governorates, i.e., Mafraq, Irbid, Jerash, and Ajloun, as well as for the population of the Yarmouk Basin was calculated, where a part of the population of these governorates resides within Basin. The water supply and the number of wells were also determined during this study. Various physicochemical parameters of water, like pH, EC, TDS, DO, NO2, and NO3, were also evaluated. Water supply, demand, and quality issues were also identified in collaboration with relevant stakeholders. The study showed an increase in the Kingdom's population in four governorates from about 1.27 to 2.88 million inhabitants, while the population of four governorates in the Yarmouk Basin increased from about 639,992 to 1.53 million inhabitants, and it is more than doubling. Comparing the population with the water supply, the numbers of wells and their uses showed significant changes, as evidenced by the substantial increase in the water supply. The studied physiochemical parameters were within the permissible limits of the National Standards. The critical water issues reported in the study area are difficulties in law enforcement and rapid population growth, which interactively affect the water supply. The study's findings will assist decision-makers in managing future water supplies as they face challenges in securing additional water, and there is an urgent need for research and future scenarios to meet water needs

∈φ-contraction and some fixed point results via modified ω-distance mappings in the frame of complete quasi metric spaces and applications

In this Article, we introduce the notion of an ∈φ-contraction which based on modified ω-distance mappings and employ this new definition to prove some fixed point result. Moreover, we introduced an interesting example and an application to highlight the importance of our work

Common fixed point results for weakly isotone increasing mappings in partially ordered partial metric spaces

In this paper we prove some common fixed point results for pair of weakly isotone increasing mappings in the context of partially ordered partial metric spaces. Thus our results in the new context generalize, extend, unify, enrich and complement fixed point theorems of contractive mappings in several aspects. We provide examples to illustrate the usability of our results