DPSR-based study and assessment of the influence pathways of Shanghai urban development level on river methane emission potential during 2011–2020 by Ziqi Zhang, Zhinan Xu, Leyi Li, Xiangrong Wang

“…The results showed (goodness-of-fitness = 0.4446) that driver (population density, urbanization rate), pressure (annual water supply, total yearly household waste), and state (deteriorating water quality environment) all increased the methane emission potential of urban rivers (total effect = 0.1917; 0.3932; 0.1394). …”
Get full text

Small-scale spatiotemporal epidemiology of notifiable infectious diseases in China: a systematic review by Junyao Zheng, Guoquan Shen, Siqi Hu, Xinxin Han, Siyu Zhu, Jinlin Liu, Rongxin He, Ning Zhang, Chih-Wei Hsieh, Hao Xue, Bo Zhang, Yue Shen, Ying Mao, Bin Zhu

“…Climate, socioeconomic factors, and population density were the three most considered factors. …”
Get full text

Land cover changes and management effectiveness of protected areas in tropical coastal area of sub-Saharan Africa by Jeffrey Chiwuikem Chiaka, Gengyuan Liu, Hui Li, Wen Zhang, Mingwan Wu, Zhaoman Huo, Francesco Gonella

“…Nevertheless, there is evidence of a decline in cropland in some of the protected areas, suggesting a shift in policy towards conservation land use. (2) The occurrence of forest loss suggests that conservation is weak in most of the protected areas, while wetland conservation efforts are stronger due to their land cover expansion. (3) Population density (human factor) is the most significant driver of land cover change in these protected areas, followed by elevation (natural environment), precipitation (climate), nighttime light (socio-economic), and slope (natural environment). (4) In terms of Ecosystem value, only 15 of the 22 protected areas exhibited an increase in their total ecosystem service value according to land cover change, indicating sustainable land use and measures effectiveness in these protected areas. …”
Get full text

Understanding the impact funding cuts on Environmental and regulatory services and gastrointestinal infections: a longitudinal ecological study [version 2; peer review: 2 approved] by Lauren Murrell, Roger Gibb, Helen Clough, Mark Green, Xingna Zhang, Iain Buchan, Marie Chattaway, Daniel Hungerford, Benjamin Barr

“…Data will be gathered on food hygiene enforcement, food hygiene compliance levels, GI infection hospitalisation, NHS 111 calls relating to GI infection symptoms, GI infection pathogen data, deprivation, and population density. Measures will be aggregated to LA level and statistical analysis will be carried out. …”
Get full text

The spatially varying influence of humans on fire probability in North America by Marc-André Parisien, Carol Miller, Sean A Parks, Evan R DeLancey, François-Nicolas Robinne, Mike D Flannigan

“…We circumvent these challenges by investigating the broad-scale impact of humans on fire activity using parallel statistical models of fire probability from 1984 to 2014 as a function of climate, enduring features (topography and percent nonfuel), lightning, and three indices of human activity (population density, an integrated metric of human activity [Human Footprint Index], and a measure of remoteness [roadless volume]) across equally spaced regions of the United States and Canada. …”
Get full text

The reactive cholera vaccination campaign in urban Dhaka in 2022: experience, lessons learned and future directions by Zahid Hasan Khan, Md Taufiqul Islam, Mohammad Ashraful Amin, Nabid Anjum Tanvir, Fahima Chowdhury, Farhana Khanam, Taufiqur Rahman Bhuiyan, Tajul Islam A Bari, Aninda Rahman, Md Nazmul Islam, Ashraful Islam Khan, Firdausi Qadri

“…Study design: This is a descriptive report of a reactive oral cholera vaccination campaign. Methods: Population density maps were generated using GIS technology before launching the campaign. …”
Get full text

Demography of zooplankton (Anuraeopsis fissa, Brachionus rubens and Moina macrocopa) fed Chlorella vulgaris and Scenedesmus acutus cultured on different media by Jesús Morales-Ventura, S. Nandini, S.S.S Sarma, Maria Elena Castellanos-Páez

“…Thus, regardless of the culture medium used, the growth rates of the evaluated zooplankton species were higher with Chlorella than with Scenedesmus. The peak population density was highest (2 800ind/mL) for A. fissa fed Chlorella that was cultured on liquid fertilizers, while B. rubens and M. macrocopa had peak abundances of 480 and 12ind/mL, respectively under similar conditions.…”
Get full text

The Effect of the Human Footprint and Climate Change on Landscape Ecological Risks: A Case Study of the Loess Plateau, China by Zhi Qu, Yonghua Zhao, Manya Luo, Lei Han, Shuyuan Yang, Lei Zhang

“…Among all the human footprint factors, the population density factor has the highest effect on the landscape ecological risks of the Loess Plateau. …”
Get full text

Spatial Pattern of Changing Vegetation Dynamics and Its Driving Factors across the Yangtze River Basin in Chongqing: A Geodetector-Based Study by Bo Yao, Lei Ma, Hongtao Si, Shaohua Li, Xiangwen Gong, Xuyang Wang

“…Using several data sets, including the SPOT Normalized Difference Vegetation Index (NDVI), meteorological, soil, digital elevation model (DEM), human population density and others, combined with trend analysis, stability analysis, and geographic detectors, we studied the pattern of temporal and spatial variation in the NDVI and its stability across Chongqing from 2000 to 2019, and quantitatively analyzed the relative contribution of 18 drivers (natural or human variables) that could influence vegetation dynamics. …”
Get full text

A Scenario-Based Spatial Multi-Criteria Decision-Making System for Urban Environment Quality Assessment: Case Study of Tehran by Bahare Moradi, Rojin Akbari, Seyedeh Reyhaneh Taghavi, Farnaz Fardad, Abdulsalam Esmailzadeh, Mohammad Zia Ahmadi, Sina Attarroshan, Fatemeh Nickravesh, Jamal Jokar Arsanjani, Mehdi Amirkhani, Igor Martek

“…Among the spatial-functional and environmental criteria, the sub-criteria of population density and air pollution, respectively, had the greatest impact on UEQ. …”
Get full text

A comprehensive analysis and future projection of land use and land cover dynamics in a fast-growing city: A case study of Sekondi-Takoradi metropolis, Ghana by Ernest Biney, Eric Kwabena Forkuo, Michael Poku-Boansi, Yaw Mensah Asare, Kwame O. Hackman, Daniel Buston Yankey, Albert Elikplim Agbenorhevi, Ernestina Annan

“…Over the past two decades, it has experienced rapid shifts in both population density and land cover. Unfortunately, these transformations have significantly altered the natural landscape and expanded urban coverage. …”
Get full text

Assessing the spatiotemporal malaria transmission intensity with heterogeneous risk factors: A modeling study in Cambodia by Mutong Liu, Yang Liu, Ly Po, Shang Xia, Rekol Huy, Xiao-Nong Zhou, Jiming Liu

“…In this study, we conduct a systematic investigation to characterize malaria transmission intensity by taking a spatiotemporal network perspective, where nodes capture the local transmission intensities resulting from dominant vector species, the population density, and land cover, and edges describe the cross-region human mobility patterns. …”
Get full text

Potential impacts of climate and anthropogenic-induced changes on DOM dynamics among the major Chinese rivers by Si-Liang Li, Hao Zhang, Yuanbi Yi, Yutong Zhang, Yulin Qi, Khan MG Mostofa, Laodong Guo, Ding He, Pingqing Fu, Cong-Qiang Liu

“…To address this knowledge gap, we analyzed a dataset containing 386 published measurements for nine major Chinese river systems, examining dissolved organic carbon (DOC) concentrations and optical properties of chromophoric DOM (CDOM) under diverse environmental conditions, including mean air temperature, precipitation, surface solar radiation, population density, and land use. Our findings indicate that riverine DOC concentrations are significantly higher in northern China (at ∼46.8%) than in the south. …”
Get full text

Evaluating Syndromic surveillance systems at institutions of higher education (IHEs): A retrospective analysis of the 2009 H1N1 influenza pandemic at two universities by May Larissa, Zhang Ying, Stoto Michael A

“…This pattern, seen in surveillance systems at these universities and to a lesser extent in data from other IHEs, most likely resulted from students bringing the virus back to campus from their home states coupled with a sudden increase in population density in dormitories and lecture halls. Through comparison of data from different syndromic surveillance data streams, paying attention to the likely biases in each over time, we have determined, at least in the case of the pH1N1 pandemic, that student health center data more accurately depicted disease transmission on campus at both universities during the Fall 2009 pandemic than other available data sources.…”
Get full text

Introduced honey bees increase host plant abundance but decrease native bumble bee species richness and abundance by Ruijun Su, Wenfei Dai, Yulian Yang, Xuelin Wang, Rui Gao, Mengying He, Chuan Zhao, Junpeng Mu

“…Abstract Long‐term variation in the population density of introduced honey bees (Apis mellifera) has been shown to be associated with variations in floral traits in alpine lotus (Saussurea nigrescens). …”
Get full text

Substantiation of Passenger Elevators Maintenance Intervals Based on Studies of Modes and Conditions of Their Operation by D. S. Apryshkin, G. Sh. Khazanovich, A. V. Otrokov

“…Simulation modelling also takes into account the parameters of the building: population density and random external and internal influences. …”
Get full text

A Satellite-Based Land Use Regression Model of Ambient NO₂ with High Spatial Resolution in a Chinese City by Lina Zhang, Changyuan Yang, Qingyang Xiao, Guannan Geng, Jing Cai, Renjie Chen, Xia Meng, Haidong Kan

“…In this study, we developed a satellite-derived LUR model to predict seasonal NO₂ concentrations at a city scale by including satellite-retrieved NO₂ tropospheric column density, population density, traffic indicators, and NO_x emission data. …”
Get full text

Association between long-term exposure to air pollutants and cardiopulmonary mortality rates in South Korea by Jeongeun Hwang, Jinhee Kwon, Hahn Yi, Hyun-Jin Bae, Miso Jang, Namkug Kim

“…Multivariate beta-regression analysis was performed to estimate the associations between air pollutant concentrations and mortality rates, after adjusting for confounding factors including altitude, population density, higher education rate, smoking rate, obesity rate, and gross regional domestic product per capita. …”
Get full text

Controlling Effects of Nanocomposite Sterilant ND-1 on the Growth of Wild Populations of Midday Gerbil (<i>Meriones meridianus</i>) by Fan Bu, Xin Li, Junyuan Bai, Shanshan Sun, Haiwen Yan, Haoting Zhang, Yongling Jin, Linlin Li, Rong Zhang, Zhenghaoni Shang, Shuai Yuan, Xiaodong Wu, Heping Fu

“…Therefore, ND-1 reduced the number of female midday gerbils during the breeding period and the sex ratio and population density and altered the age structure of the wild population. …”
Get full text

A review of the mosquitoes fauna (Diptera: Culicidae) of Tyumen Region of Russia and adjacent territories by T.A. Khlyzova

“…Currently, continuous studies of ranges and population density of insects which transmit vector-borne diseases in Russia are unfortunately absent or such studies are carried out only in certain regions. …”
Get full text