Digital Commons Network^™

Magnetic And Optical Properties Of Airborne Dust Particles Nearby Coal-Fired Power Plants In Upper Silesia, Poland: A Mineralogical, Petrographical And Chemical Approach, Chrysoula Chrysakopoulou, Konstantinos Perleros, Małgorzata Wojtaszek-Kalaitzidi, Lambrini Papadopoulou, Nikolaos Kantiranis, Stavros Kalaitzidis

Journal of Sustainable Mining

Coal mining and exploitation pose certain challenges in terms of environmental management. The objective of this research is the study of airborne dust from Knurow region, Southern Poland, aiming to identify the level and the features of anthropogenic particles, mostly in the form of fly ash. Two samples collected from a domestic gutter system were analysed regarding their mineralogical, chemical and petrographical features, emphasizing the magnetic fraction and the carbonized organic particles. The airborne dust contains 22 wt.% of fossil and fresh organic matter, whereas the major mineralogical phase is magnetite. The magnetic fraction (up to 3 wt.%) appears in …

Chimes: March 3, 2025, Calvin University

Chimes

Calvin ends tuition assistance for professors who send children to Christian K-12 schools by Ethan Meyers & Grace Buller

Calvin responds to federal DEI challenges by Elisabeth Stevens

A Q&A with Jacqui Elzinga on the adjustment to the presidency by Ethan Meyers

Calvin faculty, staff display artwork at Center Art Gallery by Addy Offutt

PDAC: Trump's Environment Policy by Sarah Sparling

Calvin Women's basketball advances to finals in MIAA Tournament after wins over Adrian and Hope by Zach Kern

"When Jesus Did Not Return:" A chat with Dr. James Bratt about this week's History Colloquium by Clare Rybicki

Hulvey's All …

Design And Synthesis Of Ag Nps/Cellulose Nanofiber-Starch Nano-Bio Composites For Packaging Applications, Preetha Balakrishnan, Sreerag Gopi

Yanbu Journal of Engineering and Science

Addressing problems due to conventional plastics requires a comprehensive approach involving waste reduction, improved waste management practices, and the development of sustainable alternatives to conventional plastics. In this study, a system was designed that can decorate cellulose nanofiber with silver nanoparticles (AgNP) and then used as a reinforcing agent in thermoplastic starch matrix. The composites were characterized by Fourier Transform Infrared Spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), Transmission electron microscopy (TEM) and transport properties. The morphology and chemical modification of cellulose nanomaterials with silver nanoparticles were confirmed by FESEM, TEM and FTIR and the results indicated proper adhesion …

A Novel Bio-Coagulant Aid To Treat High Turbid Water Containing Humic Acids, Hossam Altaher, Tarek E. Khalil, Reda Abubeah

Yanbu Journal of Engineering and Science

In general, the production of potable water from raw water sources involves the coagulation or flocculation process to remove turbidity. Alum has been widely used as a coagulant; however, there is a concern about its associated risk of Alzheimer's disease. As a result, there has been considerable interest in the development of natural coagulants and coagulant aids in order to reduce the dose of alum. This study aimed at evaluating the use of Corchorus Olitorius L. (COL), a leafy vegetable grown in Africa and the Middle East, as a novel coagulant aid over other synthetic coagulant aids. It is a …

Daily Announcements March 2025, Wofford College. Office Of Marketing And Communications

Communications Office Daily Announcements

No abstract provided.

Wofford Today Spring 2025, Wofford College. Office Of Marketing And Communications

Wofford Today

No abstract provided.

Assessment Of Water Pollution Levels In Lake Batur, Indonesia And Their Effect On Water Weed Presence, Syarif Prasetyo, Tri Retnaningsih Soeprobowati, Tirtaduna Tirtaduna, Agus Purnomo, Sri Hartati, Umi Chodrijah, Prihatiningsih Prihatiningsih, Ari Wahyono, Jumari Jumari, Rossi Prabowo

The Philippine Agricultural Scientist

Lake Batur in Bangli Regency, Bali Province is a priority area for ecological quality restoration in Indonesia due to its vulnerability to environmental changes caused by diverse and intensive utilization. Agricultural activities, fisheries, and tourism affect the lake’s water quality, leading to the uncontrolled growth of water weeds such as water hyacinth (Pontederia crassipes). To determine the relationship between water quality, community activities, and water weed presence, water samples were collected from 9 locations consisting of residential, tourist, aquaculture, and agricultural areas. In situ analysis was then conducted to measure turbidity, pH, temperature, dissolved oxygen (DO), total dissolved …

Drivers Of Vegetation Structure Differ Between Proposed Natural Reference Conditions For Temperate Europe, Elena A. Pearce, Charles W. Davison, Florence Mazier, Signe Normand, Ralph Fyfe, Maria Antonia Serge, Paolo Scussolini, Jens Christian Svenning

School of Geography, Earth and Environmental Sciences

Aim: Pre-degradation baseline conditions (references) provide crucial context for restoration actions. Here, we compare vegetation structure and its driving processes across the main pre-agricultural references discussed for temperate Europe: the Last Interglacial and the early-mid Holocene—before and after the arrival of Homo sapiens, respectively. Location: Temperate Europe. Time Period: The first ~4000–6000 years, excluding the initial early-successional phases, of the Last Interglacial (PAAZ III) and Holocene (8700–5700 BP). Major Taxa Studied: Plants. Methods: We use large datasets of pollen-based vegetation reconstructions (REVEALS) to compare open vegetation, light woodland and closed forest between the two periods. We use Random Forest modelling …

Going Green In Dermatology, Rahib K. Islam, Victoria T. Tong, Shari R. Lipner

School of Medicine Faculty Publications

No abstract provided.

Quantifying Temporal Dynamics Of E. Coli Concentration And Quantitative Microbial Risk Assessment Of Pathogen In A Karst Basin, Shishir K. Sarker, Ryan T. Dapkus, Diana M. Byrne, Alan E. Fryar, Justin M. Hutchison

Earth and Environmental Sciences Faculty Publications

Karst aquifers can be highly productive water sources but are vulnerable to contamination by pathogens because of integrated surface and subsurface drainage. Our study focuses on the karstic Royal Spring basin in Kentucky, encompassing urban and agricultural land uses. The city of Georgetown distributes treated water from Royal Spring to over 33,000 customers. We examined E. coli dynamics at Royal Spring from June 2021 through June 2022, assessing variability under wet versus dry weather conditions. We also used quantitative microbial risk assessment (QMRA) to estimate potential health risks from the pathogenic bacterium E. coli O157:H7. E. coli concentrations in weekly …

Plural Water Narratives: An Environmental Justice Lens On A Systematic Review Of Q-Methodology Water Research, Melissa Haeffner, Alida Cantor, Janet Cowal, Andrea Bryant, Darius Mani Yaw, Kinna Je Palacios, Daniela Serna, Bryce Sprauer, Abigail Tran-Gruver

Environmental Science and Management Faculty Publications and Presentations

Environmental justice research has shown that people's experiences and perceptions of water differ because systematic inequalities shape the extent to which people access clean water and are exposed to water hazards. Q‐methodology is one technique that has been used to aggregate multifaceted subjective narratives and understand different perspectives on a topic. In this paper, we systematically review 77 case study articles applying Q‐methodology to water‐related topics, to inventory how people perceive their relationships with water. We create a classification system based on environmental justice theory to examine (1) distributive justice issues around alternative water sources and agricultural and urban water …

Environmental Justice And Ecology In Social Work Education: Emerging Trends Among Faculty., Keri Otte

Doctor of Social Work Capstone Projects

March 31, 2025

This paper presents a study of how social work educators in the U.S. are integrating environmental justice and ecological content into social work coursework and /or curriculum. Current literature in this area suggests that educators should be incorporating deep ecology philosophy, using experiential learning techniques, and moving away from anthropocentrism towards ecocentrism. Ten semi-structured interviews were conducted to gather data on pedagogical approaches, educator knowledge and previous training, and barriers to content integration. The interviews took place virtually with social work educators from five geographical areas in the United States. The findings illustrate the importance of transformative …

Proof Of Concept: Using Uas Technology To Accomplish Aerial Roof Inspections, Madison R. Fanning

Theses and Dissertations

With the growing use of simulation across industries, the digital twin remains an underexplored research area, particularly in emergency management and response. Its real-time updating capability is often overlooked due to the misconception that "digital twin" is merely a complex term for simulation. This paper highlights its distinctiveness through an evasion exercise involving two independent entities in a collocated environment. Using a highly integrated virtual environment (HIVE) and internet of things (IoT) devices, we link the physical system with an analytical simulation, demonstrating the impact of lag times in high-pressure scenarios. The computational model leverages agent-based modeling (ABM) and discrete-event …

Quantifying Teaching Quality In University Chemistry Using Bipolar Neutrosophic Decision-Making Framework, Lina Sun, Feng Yi

Neutrosophic Sets and Systems

There is no doubt that the teaching of university Chemistry plays a critical role in enriching the students’ knowledge with analytical and problem-solving skills that are necessary for achieving academic and professional progress in many fields. However, the process of evaluating the quality of Chemistry teaching remains a challenging task because it usually relies on subjective judgments, diversity of criteria, and variability in human perception, leading to inherent uncertainty. Bipolar Neutrosophic Sets (NS) provide appropriate representation for uncertainty setting ls with three levels of membership, each with positive and negative degrees. Inspired by that, this study contributes to the body …

Exploring The Dynamics Of Lotka-Volterra Systems: Efficiency, Extinction Order, And Predictive Machine Learning, Sepideh Vafaie, Deepak Bal, Michael A.S. Thorne, Eric Forgoston

School of Computing Faculty Scholarship and Creative Works

For years, a main focus of ecological research has been to better understand the complex dynamical interactions between species that comprise food webs. Using the connectance properties of a widely explored synthetic food web called the cascade model, we explore the behavior of dynamics on Lotka-Volterra ecological systems. We show how trophic efficiency, a staple assumption in mathematical ecology, affects species extinction. With clustering analysis, we show how straightforward inequalities of the summed values of birth, death, self-regulation, and interaction strengths provide insight into which food webs are more enduring or stable. Through these simplified summed values, we develop a …

Green Human Resource Management (Ghrm) And Sustainability: A Mini Review, Kevser B. Meric Atakan

Journal of Global Business Insights

This mini review explores the evolving role of Green Human Resource Management (GHRM) in advancing sustainability within organizational structures. As environmental concerns become increasingly central to global business agendas, organizations are compelled to expand their focus beyond profitability to incorporate ecological responsibility. Within this shift, GHRM emerges as a strategic approach that integrates environmental considerations into core human resource functions. The review synthesizes current literature to evaluate how HR practices such as recruitment, training, performance evaluation, and incentive systems are being adapted to support environmental goals. Evidence from qualitative analyses suggests that organizations are gradually embedding sustainability into their internal …

Conquer And Prevail Issue 182 February 27 2025, Wofford College. Office Of Marketing And Communications

Conquer and Prevail Newsletter

No abstract provided.

Montana Kaimin, February 27, 2025, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

Perceived And Recorded Temperature In Aircraft Cabins During 143 Flights, Matthew Nicholls, Peter Vink

Journal of Aviation Technology and Engineering

This essay reports on the perceived and recorded temperature in aircraft cabins during 143 flights. In each flight, passengers reported their experience. They recorded temperature and humidity after boarding and one hour later. The reports show that fewer than half of the passengers perceived the temperature as “good.” Most passengers (39%) perceived it as hot, and some (17%) perceived it as cold. Comparing the temperatures with guidelines shows that 18% of the recorded temperatures in the cabin were empirically too hot and 2% empirically too cold. The differences between passengers in what they perceive as a good temperature are large, …

The College Voice, Vol. 62, No. 7 [February 26, 2025], Connecticut College

2024-2025

No abstract provided.

Does Climate Change Impacts Output? An Empirical Evidence From Asia Pacific Countries., Chinmaya Behera Dr., Ranjan Kumar Mohanty Dr., Biswashree Tanaya Priyadarsini Ms., Debasis Patnaik

Bulletin of Monetary Economics and Banking

The study examines the nexus between output, Gross Domestic Product (GDP), renewable energy, trade openness, carbon emission, and foreign direct investment in Asia Pacific countries Using the autoregressive distributed lag model and yearly data from 1990 to 2021, we find (a) a long-run relationship among the variables under consideration, (b) that GDP positively impacts output in most countries, (c) that CO2 and renewable energy display varied effects, and (d) in the short run, GDP and trade openness generally exert a positive influence, but GDP demonstrates a mix of positive and negative impacts. Policymakers need to provide stable policies for environmental …

News From The Chapters 1989-90, C. Nicholas Raphael

The Geographical Bulletin

The Eta Gamma Chapter of GTU sponsored a number of events that were well attended by both student members and faculty guests. The Chapter hosted a coffee hour for the new department faculty member, Dr. Michael Broadway. Geography Careers Night was arranged by Eta Gamma as part of the 1989 Geography Awareness Week celebration. Two Geneseo geography graduates presented their views on job opportunities in the field, followed by questions from a panel of GTU officers.

The Diamond, February 25, 2025, Dordt University

Dordt Diamond

• Front Page:Defender Swim Team Takes on First KCAC Conference Meet; Math Professor Creates Website for Christian Educators; The Search to Lift School Spirit
• News: Dordt University's Joel Penner Named "Frosty Westering Coach of the Year"; Dordt Men's Volleyball Stays Positive Despite Season Ups & Downs
• Feature: Senior Spotlight; Wayside Chapel: A Beacon of Faith at the Side of the Road
• Arts & Entertainment: Concert Choir Presents a Night of Songs and Sweets; The Return of "The Show"
• Politics: Defining Fair Play: A Local Look on "No Men in Women's Sports"; DOGE Wreaks Havoc in Dordt …

Gubic: The Global Urban Biological Invasions Compendium For Plants, Daijiang Li, Luke J. Potgieter, Myla F. J. Aronson, Irena Axmanová, Benjamin Baiser, Marta Carboni, Laura Celesti-Grapow, Sonja Knapp, Ingolf Kühn, Ana Carolina Lacerda De Matos, Zdeňka Lososová, Flavia A. Montaño-Centellas, Petr Pyšek, David M. Richardson, Lauren B. Trotta, Rafael D. Zenni, Sarel S. Cilliers, Bruce D. Clarkson, Amy J. S. Davis, Rebecca W. Dolan, Marcin M. Dyderski, Franz Essl, Orou G. Gaoue, Joanne Gui, Charly Géron, Gustavo Heringer, Cang Hui, Anzar A. Khuroo, Stefan Klotz, Peter M. Kotanen, Holger Kreft, Frank A. Sorte, Jonas J. Lembrechts, Bernd Lenzner, Christopher A. Lepczyk, Scott Macivor, Cristina Martínez-Garza, Akira S. Mori, Charles Nilon, Jan Pergl, Stefan J. Siebert, Alyona S. Tretyakova, Toby P. N. Tsang, Kei Uchida, Mark Van Kleunen, Montserrat Vilà, Hua-Feng Wang, Patrick Weigelt, Peter Werner, Nicholas S. G. Williams, Marten Winter, Marc Cadotte

Scholarship and Professional Work - LAS

Abstract Urban areas are foci for the introduction of non-native plant species, and they often act as launching sites for invasions into the wider environment. Although interest in biological invasions in urban areas is growing rapidly, and the extent and complexity of problems associated with invasions in these systems have increased, data on the composition and numbers of non-native plants in urbanized areas remain scattered and idiosyncratic. We assembled data from multiple sources to create the Global Urban Biological Invasions Compendium (GUBIC) for vascular plants representing 553 urban centres from 61 countries across every continent except Antarctica. The GUBIC repository …

The Fierce Green Fire: Vol. 15 Issue 6, Wofford College Environmental Studies Program

The Fierce Green Fire

No abstract provided.

Sga 56 Senate 2025-02-21 Agenda, Niu Student Government Association Senate

Student Government Association Archives

No abstract provided.

Drought And Lack Of Water Are Among The Top Environmental Concerns For All Utahns, Sydney Fisk

Research on Capitol Hill

Rural populations are often left out of research, so we wanted to highlight rural Utahns and their opinions on the environment.

Spectator 2025-02-20, Editors Of The Spectator

The Spectator

No abstract provided.

A Long-Term Study Of Algal Blooms In Alexandria's Ecosystems: A Review, Samia K. Mikhail, Wagdy Labib

Blue Economy

Coastal ecosystems in Alexandria are facing significant stress, primarily due to the intrusion of discharged wastewaters of different origins. Over the past three decades, there has been a noticeable increase in the occurrence of harmful algal blooms (HABs) across Alexandria marine, brackish, and freshwater environments. Unfortunately, the situation is deteriorating, and HABs have become chronic issues characterized by frequent occurrences of various causative species. This phenomenon has spread widely affecting previously uninfected coastal areas with high frequency and diverse patterns of occurrence. This article provides an overview of the state of visible HABs associated with incidents of fish and/or invertebrate …

Multiple Hypothesis Testing Under Dependence, Nabaneet Das

Doctoral Theses

We have examined various aspects of multiple hypothesis testing under dependence. Traditional algorithms designed to control the error arising from multiplicity become severely conservative when the hypotheses exhibit positive dependence, resulting in a loss of power. There is a paucity of literature explicating the behaviour of traditional algorithms when the hypotheses are dependent. In the realm of multiple testing, a popular multiplicity correction is the Bonferroni correction, which is perhaps the oldest classical approach for controlling the Family-Wise Error Rate (FWER) at a desired level, regardless of dependence among hypotheses. However, under the global null and equicorrelated normal model, the …