An analysis on the economic development and deforestation by E.S. Siregar, S.U. Sentosa, A. Satrianto

“…Forest resources and institutions had a significant influence on deforestation in North Sumatra, whereas population density and economic development did not have a significant effect. …”
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Unraveling the environmental Kuznets curve in IGAD countries: interplay between ecological footprint, economic growth, renewable energy, and globalization by Abdimalik Ali Warsame, Hudayfe Osman Daror, Abdulkadir Mohamed Abdullahi

“…This study assesses the validity of the environmental Kuznets curve (EKC) hypothesis by incorporating the impacts of renewable energy, population density, and globalization on ecological footprint in IGAD member nations. …”
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Analysis of Spatiotemporal Dynamics and Driving Factors of China’s Nationally Important Agricultural Heritage Systems by Fei Ju, Rui Yang, Chun Yang

“…Further findings indicate that the spatial distribution of China-NIAHS is primarily determined by population density, tourism development, and river network density. …”
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Regional Variation in Rates of IVF Treatment across Australia: A Population-based Study by Louise Rawlings, Pauline Ding, Stephen J. Robson

“…There was no significant association between IVF procedures and population density or geographic isolation. Economic factors were not associated with IVF uptake. …”
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Monitoring Murder Crime in Namibia Using Bayesian Space-Time Models by Isak Neema, Dankmar Böhning

“…The evaluated random effects include space-time structured heterogeneity measuring the effect of regional clustering, unstructured heterogeneity, time, space and time interaction and population density. The model consists of carefully chosen prior and hyper-prior distributions for parameters and hyper-parameters, with inference conducted using Gibbs sampling algorithm and sensitivity test for model validation. …”
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Pediatric Intensive Care Unit Admissions for COVID-19: Insights Using State-Level Data by Rohit S. Loomba, Enrique G. Villarreal, Juan S. Farias, Ronald A. Bronicki, Saul Flores

“…The state-level data contained 13 different factors from population density, comorbid conditions, and social distancing score. …”
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Effects of Pollution on <i>Vibrios</i> in Woji River by AS Ojesanmi, SN Ibe

“…The Plate count technique on Thiosulphate Citrate Bile Salt agar revealed a high population density of vibrios in the sampling stations than the Most Probable Number (MPN) technique. …”
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Spatial Structure of Modern Moscow by D. V. Goloukhova

“…Firstly, it's a peculiar density profile. Population density in post-socialist cities tends to increase as we move further from the city centre while in Western European cities population density is the highest in central districts. …”
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Implementasi Self Organizing Maps untuk Pengelompokan Kabupaten/Kota Berdasarkan Indeks Pembangunan Manusia by Dwi Marisa Midyanti, Syamsul Bahri

“…This study aims to carry out the West Kalimantan IPM cluster by adding population density variables, the number of teachers and students, and the number of unemployed using Self Organizing Maps (SOM). …”
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Noninvasive Method for a Statewide Survey of Eastern Hellbenders Cryptobranchus alleganiensis Using Environmental DNA by Amy J. Santas, Tyler Persaud, Barbara A. Wolfe, Jenise M. Bauman

“…The use of environmental DNA (eDNA) has proven to be effective at detecting low population density aquatic macroorganisms. This study refined the technique to support statewide surveys. …”
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Cultural Heritages Lead to Less Dense and Greener Cities—Evidence from 371 Chinese Cities by Zhiyuan Zhang, Ruozhen Cheng, Yangpeng Dan, Luyao Wang

“…Using a range of urban metrics, including population density, building height, urban form complexity, and green space accessibility, we find that cities with more heritage sites tend to exhibit lower population density (−0.168) and building height (−0.0314), respectively. …”
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Urban Vulnerability Analysis Against earthquake hazard With the ELECTRE FUZZY method (Case Study: Karaj Metropolis) by Fatemeh Khodadadi, Mojgan Entezari, Farzaneh Sasanpour

“…Today, in view of the growing population and population density in urban areas, especially in densely populated and susceptible cities, the need for an inclusive and comprehensive approach to natural disasters and disasters caused by their occurrence has become more evident . …”
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Research on Influential Factors of PM2.5 within the Beijing-Tianjin-Hebei Region in China by Jinchao Li, Lin Chen, Yuwei Xiang, Ming Xu

“…The proportion of electricity consumption is negatively correlated with PM2.5. Among them, population density, industrial proportion, transportation volume, energy consumption per unit area, and the proportion of electricity consumption have a pivotal influence on PM2.5. …”
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Microstructure and Hardness of Cold Work Vanadis 6 Steel after Subzero Treatment at −140°C by Juraj Ďurica, Jana Ptačinová, Mária Hudáková, Martin Kusý, Peter Jurči

“…The extent of decrease in the retained austenite amount makes around 85%, and the increase in population density of small globular carbides was approximately fivefold. …”
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What Is Affecting the Residents’ Subjective Perception toward Objective Environment Quality? by Jihong Zhang, Chaopeng Xie, Chuan Chen, Ninghan Xu, Rui Gao

“…The results show that population density is the main factor that affects the difference between subjective and objective evaluations. …”
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Evaluation of the Possible Impacts of New Residential Areas on Air Pollution in the Development Plan by Merve Arslan, Doğan Dursun

“…The study findings indicated that air pollution was more concentrated in areas with high building heights, population density, and a high percentage of artificial surfaces. …”
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Quantifying the Carbon Reduction Potential of Urban Parks Under Extreme Heat Events Using Interpretable Machine Learning: A Case Study of Jinan, China by Lemin Yu, Wenru Li, Changhui Zheng, Xiaowen Lin

“…CSE was strongly correlated with vegetation coverage and surrounding population density, with efficiency increasing when the vegetation index was within 0.3–0.7 and population density ranged 0–5000 or 15,000–22,500 people. …”
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Growth performance and nutrition value of Spirulina sp. under different photoperiod by Tatag Budiardi, Nur Bambang Priyo Utomo, Asep Santosa

“…The results of this study showed that the optimum population density was achieved on day-3 days of cultured, and manipulation photoperiod showed no significant effect to the dry biomass harvest and population density, but significantly affect the specific growth rate and doubling time. …”
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Spatial–Temporal Evolution and Influencing Mechanism of Coupling Coordination Level of Social–Ecological Systems in China’s Resource-Based Cities Under the Carbon Neutrality Goal... by Yunhui Zhang, Zhong Wang, Yanran Peng, Wei Wang, Chengxi Tian

“…The results show the following: (1) The comprehensive development level of the social system in China’s resource-based cities has a significant upward trend, while the comprehensive development level of the ecological system has a gentle upward trend, and the coupling and coordination level of the social–ecological system has a fluctuating upward trend. (2) There is obvious spatial differentiation between the comprehensive development level and the coupling coordination level of the social–ecological systems in resource-based cities in China, and the relative difference is gradually increasing. (3) The digital economy index, urbanization level, science and education investment, and population density are important factors affecting the coupling coordination level, and the interaction between digital economy index, urbanization level, and population density has a strong explanatory power in the differentiation of the coupling coordination level. …”
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Climate and Plant Phenology (Plant Age and Growth Stage) Influence of Rhopalosiphum Padi L. Abundance on Wheat Plants in Luxor Governorate, Egypt by Moustafa Mohamed Sabry Bakry, Amr M. M. Badawy, Lamiaa H.Y. Mohamed

“…The combined effects of climate and plant phenology strongly correlate with R. padi population density, with explained variance (EV) of 93.86% in the first season and 99.11% in the second season. …”
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