in recent years, the issue of global water scarcity has attracted increasing attention within academia, non-governmental organizations and as well as within the media. the aim of this paper is to ascertain whether there is a systematic relationship between agriculture water use and income, and particularly whether an inverted u-shaped relationship exists, as has been found for other resources a...

The aim of the present study was to examine whether a putative relationship exists between the Class II division 2 craniofacial type and congenital anomalies of the dentition, such as missing teeth, peg-shaped laterals, transpositions, supernumerary teeth and canine impactions. Two hundred and sixty-seven untreated patients with Class II division 2 malocclusion were examined. The results show t...

T he environmental issues have received a lot of attention in recent years. Since environmental pollution is one of the issues that may damage the ability of future generations, it is important to examine the determinants of the environment quality. The main objective of this study is to investigate the impact of urban and rural income inequality on natural gas consumption in Iran. To this...

Drawing on the ‘buzz-and-pipeline’ framework, this paper examines impact of intra- and interregional collaboration linkages innovation capacity cities, as evidenced by co-publication networks existing among 217 Chinese cities located in 20 city-regions. The results show that (1) have an inverted ‘U’-shaped positive relationship with capacity, respectively; (2) effects urban can be enhanced when...

and Risks of Corticosteroid Prophylaxis in Adult Cardiac Surgery: A Dose-Response Meta-Analysis” To the Editor: We read with great interest the meta-analysis by Ho and Tan1 on the impact of prophylactic corticosteroid use on atrial fibrillation in adult patients undergoing cardiac surgery. In their meta-analysis, Ho and Tan demonstrate that perioperative corticosteroid use significantly reduces...

We analyze the distributions of paper-paper and paper-patent citations and estimate the relationship between them, based on a sample of 4,763 published papers for which the corresponding authors were among the top 100 researchers in the life and medical sciences in Japan. We find that paper-paper citations peak at an average of 4 years after the publication of a paper, while the corresponding l...

the environmental kuznets curve (ekc) hypothesis posits an inverted u relationship between environmental pollutants and per capita income. recent researches have examined this hypothesis for different pollutants in different countries. however, so far a few number of ekc studies have been carried out in iran. this might be due to the lack of reliable environmental data in this field. the aim of...