Alireza Entezari
A5058158315- Climate Change and Health Impacts
- Medical Imaging Techniques and Applications
- Air Quality and Health Impacts
- Computer Graphics and Visualization Techniques
- Advanced X-ray and CT Imaging
- Global Health Care Issues
- Image and Signal Denoising Methods
- Advanced MRI Techniques and Applications
- Advanced Numerical Analysis Techniques
- Sparse and Compressive Sensing Techniques
- Advanced Vision and Imaging
- Data Visualization and Analytics
- Advanced Neuroimaging Techniques and Applications
- Medical Image Segmentation Techniques
- Composite Structure Analysis and Optimization
- Hydrology and Drought Analysis
- Seismic Imaging and Inversion Techniques
- Digital Image Processing Techniques
- Mathematical Analysis and Transform Methods
- Topological and Geometric Data Analysis
- Thermoregulation and physiological responses
- Radiation Dose and Imaging
- Health disparities and outcomes
- Advanced Radiotherapy Techniques
- Hydrology and Watershed Management Studies
University of Florida
2014-2024
Hakim Sabzevari University
2013-2024
University of Münster
2024
Monash University
2022-2024
Research Network (United States)
2021
Sharif University of Technology
2016-2017
Polytechnic University of Turin
2017
Islamic Azad University, Naragh Branch
2017
Simon Fraser University
2002-2009
BackgroundExposure to cold or hot temperatures is associated with premature deaths. We aimed evaluate the global, regional, and national mortality burden non-optimal ambient temperatures.MethodsIn this modelling study, we collected time-series data on from 750 locations in 43 countries five meta-predictors at a grid size of 0·5° × across globe. A three-stage analysis strategy was used. First, temperature–mortality association fitted for each location by use regression. Second, multivariate...
Cardiovascular disease is the leading cause of death worldwide. Existing studies on association between temperatures and cardiovascular deaths have been limited in geographic zones generally considered associations with total rather than cause-specific deaths.We used unified data collection protocols within Multi-Country Multi-City Collaborative Network to assemble a database daily counts specific causes from 567 cities 27 countries across 5 continents overlapping periods ranging 1979 2019....
Abstract Epidemiological analyses of health risks associated with non-optimal temperature are traditionally based on ground observations from weather stations that offer limited spatial and temporal coverage. Climate reanalysis represents an alternative option provide complete spatio-temporal exposure coverage, yet to be systematically explored for their suitability in assessing temperature-related at a global scale. Here we the first comprehensive analysis over multiple regions assess most...
To investigate potential interactive effects of fine particulate matter (PM
Older adults are generally amongst the most vulnerable to heat and cold. While temperature-related health impacts projected increase with global warming, influence of population aging on these trends remains unclear. Here we show that at 1.5 °C, 2 3 °C heat-related mortality in 800 locations across 50 countries/areas will by 0.5%, 1.0%, 2.5%, respectively; among which 1 5 4 deaths can be attributed aging. Despite a decrease cold-related due progressive warming alone, mostly counteract this...
Abstract In this study, we aim to compare the climatic conditions of Surface Urban Heat Island (SUHI) in Tehran and its suburbs using day/night time data from three satellites. A high-resolution Land Temperature (LST) MODIS Aqua, Sentinel-3, Landsat 8 were selected facilitate study. The highest values LST/UHI are observed downtown suburban areas at night. temperature difference also shows an increase night western suburbs, while it decreases during day. When comparing with altitude different...
Minimum mortality temperature (MMT) is an important indicator to assess the temperature-mortality association, indicating long-term adaptation local climate. Limited evidence about geographical variability of MMT available at a global scale.We collected data from 658 communities in 43 countries under different climates. We estimated associations derive for each community using Poisson regression with distributed lag nonlinear models. investigated variation by climatic zone mixed-effects...
BackgroundIncreased mortality risk is associated with short-term temperature variability. However, to our knowledge, there has been no comprehensive assessment of the variability-related burden worldwide. In this study, using data from MCC Collaborative Research Network, we first explored association between variability and across 43 countries or regions. Then, provide a more picture global variability, gridded resolution 0·5° × were used assess at global, regional, national levels....
BackgroundClimate change can directly impact temperature-related excess deaths and might subsequently the seasonal variation in mortality. In this study, we aimed to provide a systematic comprehensive assessment of potential future changes variation, or seasonality, mortality across different climate zones.MethodsIn modelling collected daily time series mean temperature (all causes non-external only) via Multi-Country Multi-City Collaborative (MCC) Research Network. These data were during...
Identifying how greenspace impacts the temperature-mortality relationship in urban environments is crucial, especially given climate change and rapid urbanization. However, effect modification of on heat-related mortality has been typically focused a localized area or single country. This study examined heat-mortality among different levels global setting.
Extreme temperatures contribute significantly to global mortality. While previous studies on temperature and stroke-specific outcomes presented conflicting results, these were predominantly limited single-city or single-country analyses. Their findings are difficult synthesize due variations in methodologies exposure definitions.
Assessing the association between temperature frequency and mortality can provide insights into human adaptation to local ambient temperatures. We collected daily time-series data on from 757 locations in 43 countries during 1979–2020. used a two-stage time series design assess all-cause mortality. The results were pooled at national, regional, global levels. observed consistent decrease risk of as normalized increases across globe. average increase comparing 10th 100th percentile was 13.03%...
Abstract The rising humid heat is regarded as a severe threat to human survivability, but the proper integration of into heat-health alerts still being explored. Using state-of-the-art epidemiological and climatological datasets, we examined association between multiple stress indicators (HSIs) daily mortality in 739 cities worldwide. Notable differences were observed long-term trends timing events detected by HSIs. Air temperature (Tair) predicts heat-related well with robust negative...
We introduce a family of box splines for efficient, accurate and smooth reconstruction volumetric data sampled on the Body Centered Cubic (BCC) lattice, which is favorable sampling pattern due to its optimal spectral sphere packing property. First, we construct spline based four principal directions BCC lattice that allows linear C(0) reconstruction. Then, design extended higher degrees continuity. derive explicit piecewise polynomial representation C(2) are useful practical applications....
The problem of isosurface extraction in uncertain data is an important research and may be approached two ways. One can extract statistics (e.g., mean) from points visualize the extracted field. Alternatively, uncertainty, characterized by probability distributions, propagated through process. We analyze impact uncertainty on topology geometry algorithms. A novel, edge-crossing based approach proposed to predict underlying for data. derive a probabilistic version midpoint decider that...
Although seasonal variations in mortality have been recognized for millennia, the role of temperature remains unclear. We aimed to assess variation and examine contribution temperature.
Studies have investigated the effects of heat and temperature variability (TV) on mortality. However, few assessed whether TV modifies heat-mortality association. Data daily mortality in warm season were collected from 717 locations across 36 countries. was calculated as standard deviation average same previous days' minimum maximum temperatures. We used location-specific quasi-Poisson regression models with an interaction term between cross-basis for mean quartiles to obtain associations...
BackgroundWildfire activity is an important source of tropospheric ozone (O3) pollution. However, no study to date has systematically examined the associations wildfire-related O3 exposure with mortality globally.MethodsWe did a multicountry two-stage time series analysis. From Multi-City Multi-Country (MCC) Collaborative Research Network, data on daily all-cause, cardiovascular, and respiratory deaths were obtained from 749 locations in 43 countries or areas, representing overlapping...
With a population nearing 15 million, the metropolitan area of Tehran faces numerous environmental challenges due to inadequate urban strategies and hasty, ineffective planning. The primary objective this research is investigate Urban Heat Island (UHI) climatology in metropolis Tehran. To achieve this, daily Land Surface Temperature (LST) data from MODIS-Aqua, with spatial resolution 1 km, was utilized over 19-year period (2003–2021). This study delves into various climatic characteristics,...
We present a study of linear interpolation when applied to uncertain data. Linear is key step for isosurface extraction algorithms, and the uncertainties in data lead non-linear variations geometry extracted isosurface. an approach deriving probability density function random variable modeling positional uncertainty extraction. When quantified by uniform distribution, our provides closed-form characterization mentioned variable. This allows us derive, closed form, expected value as well...