Table of Content

Open Access Original Research

Reconstruction of Anthropogenic Land-Cover Change for Middle America, 1500 CE

Received: 07 March 2021;  Published: 24 August 2021;  doi: 10.21926/aeer.2103020

Abstract

This project demonstrates how to use existing syntheses of many decades of historical social science research to produce empirically derived land-use maps in a GIS for large regions for a specific target year at a resolution appropriate to the calibration of existing anthropogenic land-cover change (ALCC) models. Disagreement among the outputs of various ALCC models results from differing estimates of population and assumptions about how much food a given population requires and the productivity per unit area of va [...]

921 8063

Open Access Original Research

Analysis of Surface Water Areal changes using Remote Sensing Data

Received: 23 October 2020;  Published: 29 July 2021;  doi: 10.21926/aeer.2103019

Abstract

Inland water bodies are crucial for supporting human life in various parts of the world. Therefore, it is essential to accurately monitor its spatiotemporal variations for better water management. The main objective of this study is to investigate the application of remote sensing data for quantifying the surface area changes and the impact of climatological variabilities over Lakes Mead and Chapala. Historical time series of monthly surface area dynamics were developed using Landsat 1-8 scenes and the climate vari [...]

1005 8075

Open Access Original Research

Normalized Difference Vegetative Index-related Assessment for Climate Change Impact on Indigenous Communities from High Resolution IKONOS Satellite Imagery in West Papua

Received: 29 October 2020;  Published: 09 July 2021;  doi: 10.21926/aeer.2103018

Abstract

High-resolution satellite imagery permits acquisition of critical data to observe climate-change and environmental impact on conflict-impacted indigenous communities with co-existing socio-economic factors, often within unstable regimes. Conflict may prevent direct access in remote regions to validate civilian conflict actor evidence. In such cases use of remote sensing tools, techniques, and data are extremely important. Software-based imagery assessment can quantify radiometrically calibrated or Normalized Differ [...]

1129 8515

Open Access Concept Paper

Correction of Sunglint Effects in High Spatial Resolution Hyperspectral Imagery Using SWIR or NIR Bands and Taking Account of Spectral Variation of Refractive Index of Water

Received: 26 April 2021;  Published: 05 July 2021;  doi: 10.21926/aeer.2103017

Abstract

Passive high spatial resolution hyperspectral and multispectral imaging systems in the solar spectral region from aircraft and satellite platforms are being increasingly used for remote sensing of coastal waters and inland lakes. However, the remotely sensed data are often contaminated by the specular reflection of solar radiation at the air/water interface. Thus, the effects of sunglint need to be corrected. The purpose of sunglint correction is to remove the undesired specular reflected portion of radiance that d [...]

1646 9483

Open Access Research Article

Modeling Tile Drainage Outflow in Thin Agricultural Soils with Impermeable under Layer in Newfoundland and Labrador, Canada

Received: 30 December 2020;  Published: 28 June 2021;  doi: 10.21926/aeer.2102016

Abstract

Subsurface tile drainage installation helps to maintain water table levels and to meet adequate crop moisture requirements. Artificial subsurface drainage continues to be a common practice in Newfoundland and Labrador (NL) and elsewhere around the world. The main objective of this study was to evaluate the performance of DRAINMOD in simulating water table depth (WTD) and water outflow from tile drained agricultural fields. This site on the Avalon Peninsula of Eastern Newfoundland has a rolling landscape with predom [...]

1316 7979

Open Access Original Research

Potential Impact of UWWT Effluent Discharges on Ruditapes decussatus: An Approach Using Biomarkers

Received: 09 April 2021;  Published: 19 June 2021;  doi: 10.21926/aeer.2102015

Abstract

The use of biomarkers in bivalves has gained significance as a reliable method for the assessment of the presence and effect of contaminants in aquatic ecosystems. However, it is important to note that the biomarkers respond not only to contaminant loadings and bioavailability but also to environmental stress. Therefore, the association between biomarkers and contamination/pollution should be conducted cautiously as the environmental factors also affect their response. These factors should be integrated into the as [...]

917 7815

Open Access Research Article

Modelling the Cumulative Number of COVID-19 Cases

Received: 14 April 2021;  Published: 10 June 2021;  doi: 10.21926/aeer.2102014

Abstract

Each country has its own characteristics of COVID-19 infection trajectory and epidemic waves. Differences in government-implemented restrictions and social regulations result in variability of the virus transmissions and spread dynamics. This in turn results in various shapes of the growth function used to represent and describe the propagation of infection. Statistical methods are applied to fit non-linear functions to represent daily time-series data of the cumulative numbers of COVID-19 cases. The aim of this wo [...]

1437 9080

Open Access Research Article

Examination of PCDD/F Formation in Thermal Systems Using Simple Mathematical Models

Received: 01 March 2021;  Published: 07 June 2021;  doi: 10.21926/aeer.2102013

Abstract

A set of empirical models which accounts for the formation of gas phase polychlorinated dibenzo-p-dioxins and furans (PCDD and PCDF), and solid phase PCDD/F by the de novo mechanism is described.In each case, competing formation and destruction reactions are considered to operate.The effect of the time-temperature history on their formation is then examined.At high temperatures, steady-state is reached in fractions of a second, resulting in the observed low product concentrations.Rapid cooling as found in furnaces [...]

893 6968

Open Access Research Article

Persistent Organic Pollutants in Urban Soils of Central London, England, UK: Measurement and Spatial Modelling of Black Carbon (BC), Petroleum Hydrocarbons (TPH), Polycyclic Aromatic Hydrocarbons (PAH) and Polychlorinated Biphenyls (PCB)

Received: 05 March 2021;  Published: 28 May 2021;  doi: 10.21926/aeer.2102012

Abstract

Total organic carbon (TOC), black carbon (BC), total petroleum hydrocarbons (TPH), polycyclic aromatic hydrocarbons (PAH) and polychlorinated biphenyls (PCB) were determined in 73 surface (0-2 cm) and subsurface (5-20 cm) soil samples taken from a 142 km2 area in Central London, UK. Soils were assessed to provide a baseline chemistry for site owners, developers, occupiers and regulators involved in understanding the potential risk to human health and the environment. TOC range was 1.75-11.85 % (mean 5.82 %), BC 3.7 [...]

1467 9807

Open Access Research Article

Gender-Dependent Effects of Thimerosal on Human Progenitor Neurons: A Potential Link to Regressive Autism

Received: 26 September 2020;  Published: 07 June 2021;  doi: 10.21926/aeer.2102011

Abstract

Regressive Autism [RA] is a subtype of autism spectrum disorder (ASD) that manifests as the loss of previously acquired developmental milestones and skills. Early life dysregulation of neurodevelopment due to exposure to toxic metals has been associated with ASD, but the underlying biological mechanisms by which metals influence neurodevelopment remain unclear. We explored the potential role of thimerosal or ethylmercury on neurite formation and oxytocin receptor (OXTR) modulation in four human-developing neuronal [...]

883 7034

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