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Low-Temperature Catalytic Oxidation Of White Spirit Vapor In Air By Binary Oxides Of Feo-Mnox Supported On Oms-2 Material, Ngo Quoc Nguyen, Pham Duy Quang, Nguyen Ha Nhu, Le Thi Van Anh, Nguyen Thi Thuy, Vo Thanh Hang, Le Van Thang, Nguyen Thi Le Lien, Nguyen Trung Thanh, Nguyen Nhat Huy

Applied Environmental Research

In this work, catalysts of iron and manganese oxides supported on OMS-2 were prepared and applied to remove white spirit (WS) in air. Among the fabricated catalysts, the FeO-MnOx/OMS-2 catalyst with a surface Fe+Mn loading of 15% (Fe:Mn = 6:4) exhibited the highest catalytic performance, achieving a high WS removal efficiency of 97.91% at 200 °C. The catalyst retained the cryptomelane-type tunnel structure of OMS-2 and possessed enhanced redox activity due to the synergistic interaction between surface Fe and Mn species. The physico-chemical properties were characterized via BET, EDS, FTIR, XRD, and SEM. The suitable conditions for WS oxidation were …

Spatial And Temporal Dynamics Of Water Use Efficiency And Climate Influence In The Central Highlands Of Vietnam Via Satellite Time Series, Thi Nguyen Quang, Hoang Van Hung

Applied Environmental Research

This study investigates the spatial and temporal patterns of water use efficiency (WUE) anomalies across the Central Highlands of Vietnam from 2001–2024 via MODIS time series data, with a focus on seasonal differences and climatic drivers. The results revealed pronounced interannual and spatial variability in the WUE, with significant improvements observed during 2004, 2015, and 2021–2024 and substantial declines during 2005–2008, 2010–2013, and 2016–2017, which coincided with major drought events in the region. Seasonal analysis indicated that WUE was lower during the early dry season and peaked during the postmonsoon months (October–November), reflecting the interplay between water availability and vegetation …

Using A Water Quality Index To Assess The Impacts Of Heavy Metals Contamination For Sustainable Water Management: A Case Study Of The Bang Pakong River, Thailand, Khin Yadana Soe, Pokchat Chutivisut, Wilailuk Niyommaneerat

Applied Environmental Research

Anthropogenic activities such as improper waste disposal, excessive fertilizer use, and industrial effluents cause heavy metal contamination in water, soil, and the atmosphere. Herein, the water quality index (WQI) was used to characterize heavy metal (i.e., cadmium (Cd), arsenic (As), and mercury (Hg)) contamination in the Bang Pakong River, Thailand. Specifically, water samples were collected during the dry season from four stations along the river from 2012–2022. The heavy metal concentrations in the samples were analyzed via atomic absorption spectrophotometry, and WQI values were calculated on the basis of standard water quality parameters. At the four sampling stations, high As …

Halotolerant Biodegradation And Detoxification Of Synthetic Dyes By Marine-Derived Penicillium Oxalicum M6a: Metabolite Profiling And Ecotoxicity Assessment, Ugochukwu Okechukwu Ozojiofor, Mohammed Sani Abdulsalami, Nkechi Eucharia Egbe, Ahmed Ali Haroun, Yakubu Magaji

Applied Environmental Research

The complex aromatic structures of synthetic dyes in contaminated water bodies make them difficult to degrade, posing a serious environmental challenge and representing a significant emerging pollutant that warrants urgent intervention. This study evaluated the biodegradation and detoxification potential of a halotolerant, marine-derived fungal strain, Penicillium oxalicum M6A, isolated from the Nigerian coastline, against Indigo carmine (IC) and Remazol Brilliant Blue R (RBBR). The effects of pH, temperature, salinity, and dye concentration on degradation efficiency, alongside enzymatic activity, were assessed. FTIR and GC‒MS analyses were employed to identify degradation products and predict metabolic pathways, whereas toxicity was evaluated in three …

Blue Carbon Stock Assessment Of The Mangrove Swamp Forest Reserve In Baganga, Davao Oriental, Philippines, Renz Morales Lanaban, Yves Paul M. Montero, Hilario L. Wong, Jr., Marnie Grace I. Sonico

Applied Environmental Research

Mangrove ecosystems are vital carbon sinks, yet they are threatened by anthropogenic pressures and natural disturbances, causing significant carbon stock losses. Given the limited data for Baganga, Davao Oriental, this study quantified the aboveground biomass (AGB) and blue carbon stock in the Lucod mangrove swamp forest reserve. We identified mangrove species, measured AGB and carbon content via allometric equations, and compared storage among species. The results indicated that the mangrove forest AGB was within typical ranges for tropical wet regions and the Asia-Pacific region, but its overall carbon content did not reach highly productive ecosystem levels. Nonparametric analysis revealed significant …

Investigating Spatial And Temporal Changes In Vegetation Via Remote Sensing Indicators And Revealing Their Trends In The Central Desert Of Iran, Peyman Akbarzadeh, Shima Nikoo, Mehran Akbarzadeh

Applied Environmental Research

Vegetation changes can significantly affect the conditions and productivity of ecosystems. Consequently, studying vegetation dynamics across various temporal and spatial scales has emerged as a critical environmental concern. The aim of this study was to investigate changes in vegetation cover via vegetation indices, including the normalized difference vegetation index (NDVI), ratio vegetation index (RVI), soil adjusted vegetation index (SAVI), and difference vegetation index (DVI), derived from multitemporal Landsat 5, 7, and 8 satellite images processed via the Google Earth Engine. The study area is located in the Damghan arid and desert watershed, which represents the central desert of Iran. Furthermore, …

Assessment Of Metal Contamination And Potential Health Risk Of Roadside Vegetables Along The Sayre Highway, Province Of Bukidnon, Philippines, John R.N. Labajo, Junesa U. Cristobal, Myrna G. Pabiona

Applied Environmental Research

This study assessed heavy metal contamination in roadside vegetables (Ipomoea batatas and Moringa oleifera) across five urbanized localities in Bukidnon, Philippines, and evaluated potential human health risks. Metal concentrations (Cd, Cr, Cu, Co, Fe, Mn, and Zn) were analyzed via atomic absorption spectro-photometry and compared against FAO/WHO maximum permissible limits. The results revealed severe contamination, with Mn (575.27–862.17 mg kg-1) and Fe (256.46–706.68 mg kg-1) dominating natural soil mineralogy (Adtuyon series) and anthropogenic inputs. Toxic Cr (16.20–21.93 mg kg-1) exceeded permissible limits by nine and a half times in Quezon. Health risk assessments revealed negligible noncarcinogenic risks (THQ …

Spatial Distribution And Potential Ecological Risk Of Microplastics In Surface Sediments Of The Inner Gulf Of Thailand, Sarayut Suanluang, Pathompong Vibhatabandhu, Sarawut Srithongouthai

Applied Environmental Research

The global surge in plastic usage during the COVID–19 pandemic raised concerns about increased microplastic (MP) contamination in aquatic environments. This study assessed the abundance, characteristics, and ecological risk of MPs in surface sediments of the inner Gulf of Thailand during the post–COVID–19 period (April 2021). The sediment samples were analyzed via density separation, stereomicroscopic examination, and polymer identification via micro–FTIR. The mean MP abundance was 196.07 ± 85.60 pieces kg-1, with concentrations ranging from 73.08 to 351.19 pieces kg-1. PTFE and PP were the dominant polymer types, comprising 50% and 32% of all the MPs, respectively. Fibers (34%) and …

Health Risk Assessment Of Copper Exposure Through Hand-To-Mouth Activities In The Lithium-Ion Battery Manufacturing Industry, Adisorn Phungkum, Worawat Meevasana, Khanidtha Marungrueang

Applied Environmental Research

This study aims to evaluate the occupational exposure levels of copper (Cu) among workers in a battery manufacturing facility by analyzing the Cu concentrations on hand surfaces at three distinct time periods: before work (BW), before lunch (BL), and after work (AW). A total of 30 workers involved in 13 different workstations or tasks—such as battery cell preparation, spot welding, soldering, and labeling—were included in the study to reflect diverse exposure scenarios. Surface wipe sampling was conducted according to NIOSH Method 9102, and the Cu concentrations were quantified via inductively coupled plasma‒mass spectrometry (ICP‒MS). Additionally, the hazard quotient (HQ) was …

Spatial Estimation Of Trophic State For Reservoir Using Ground Monitoring And Remote Sensing Data, Thong Nguyen Hoang, Van Tran Thi

Applied Environmental Research

Nutrient pollution, also known as eutrophication, is a severe environmental problem that leads to harmful algal blooms in water bodies and affects water supplies for human use. This study aims to determine the trophic state of the reservoir based on the trophic state index (TSI) calculated from ground monitoring data of Secchi depth (SD), total phosphorus (TP), and chlorophyll-a (Chl-a) obtained from 35 points in 2 survey periods during the late rainy season to early dry season 2012–2013 and May 2023. In addition, we combined remote sensing data to spatially estimate the eutrophication situation across the reservoir through correlation analysis …

Efficient Oxidation Of Methylene Blue Via Catalytic Activation Of Peroxymonosulfate Via An Engineered Δ-Feooh/Pili Nutshell Biochar Composite, Lorenz Borromeo

Applied Environmental Research

This study introduces a novel composite catalyst formed by anchoring delta iron oxyhydroxide (δ-FeOOH) onto pyrolyzed Pili nutshell biochar via a room-temperature coprecipitation technique, marking the first application of Pili nutshell waste in advanced oxidation processes for wastewater treatment. This innovative methodology enhances catalyst dispersion and stability, facilitating the activation of peroxymonosulfate (PMS) to generate reactive sulfate radicals (SO4•–) for the degradation of methylene blue (MB), a thiazine dye commonly used in the medical field and the dye industry. Different techniques have been used to characterize synthesized composites in terms of their morphology, elemental composition, surface functional groups, and crystalline …

Public Attention Index Of Air Pollution Exposure From Pm2.5 In Thailand, Pailin Suntigul, Sittidaj Pongkijvorasin

Applied Environmental Research

Thailand faces a persistent PM2.5 challenge, with pollution levels consistently exceeding the World Health Organization’s guidelines. In response, the Thai government has made air pollution a national priority, implementing various policies and city-level plans to reduce exposure. These policies are often temporary and do not fully address root causes, whereas the limited monitoring coverage across Thailand restricts a comprehensive assessment of PM2.5 exposure severity. This study addresses the data gap by constructing a public attention index for PM2.5, using internet search data from Google Trends, to quantify public awareness and concern regarding PM2.5 exposure. This index aims to improve the …

Assessment Of The Carbon Stock Of Trees In Selected Urban Green Spaces Of Davao City, Philippines, Daiseree Cuabo, Yves P.M. Montero, Daryl S. Salas, John P.M. Viernes

Applied Environmental Research

The combined impacts of deforestation, tree cover loss, and urbanization in urban and suburban areas significantly reduce the capacity of natural carbon sinks to sequester and store carbon. Hence, this study assessed the aboveground biomass (AGB) and carbon stock of trees in the selected green spaces of Davao City. A purposive sampling technique was employed in placing quadrats, with data collected from 27 plots categorized by size. AGB was estimated via an allometric equation, and aboveground carbon (AGC) was derived from the AGB values. A total of 358 individual trees from 25 species, 24 genera, and 13 families were documented. …

Spatial And Temporal Trends In Surface Water Quality And Pollution Sources In Ben Tre, Vietnam: A Principal Component Analysis/Factor Analysis-Based Approach, Nguyen Xuan Tong, Luu Tang Phuc Khang

Applied Environmental Research

Surface water quality is vital for maintaining ecological health and supporting sustainable development, particularly in the Mekong Delta, Vietnam, where water is heavily utilized. However, rapid urbanization and economic activities have led to water pollution. This study assessed the spatial and temporal variations in surface water quality in Ben Tre Province from January 2022 to December 2023 using 384 samples collected across dry and rainy seasons and two zones (headwater streams and cities). The water quality index (WQI) was calculated on the basis of 15 parameters, and principal component analysis/factor analysis was applied to identify pollution sources. Five key factors …

Development Of Highly Effective Sulfonic Acid–Functionalized Nr/Ms Nanocomposites For Biodiesel Production, Sakdinun Nuntang, Satit Yousatit, Toshiyuki Yokoi, Chawalit Ngamcharussrivichai

Applied Environmental Research

The acidic natural rubber/wormhole-like mesostructured silica nanocomposites (NR/WMS-SO3H) were successfully functionalized with propylsulfonic acid and arenesulfonic acid via a cocondensation method using 3-mercaptopropyl trimetho-xysilane (MPTMS) and 2-(4-chloro-sulfonylphenyl) ethyltrimethoxy silane (CSPTMS), respectively. Compared with organosulfonic acid-functionalized wormhole-like mesostructured silica (WMS-SO3H), NR/WMS-SO3H demonstrated increased hydrophobicity while maintaining mesoporosity and a large surface area. The catalytic performance of the synthesized solid acids was subsequently evaluated via batch esterification of palmitic acid with methanol to generate fatty acid methyl esters for biodiesel synthesis. Compared with WMS–SO3H, NR/WMS–SO3H demonstrated superior catalytic activity, which was attributed to the synergistic interaction between the strongly acidic functional groups …

Béryllium : Guide De Nettoyage : Entretien Ménager Et Décontamination Des Lieux De Travail, Stéphanie Viau, Chantal Dion, Mickaël Calosso

Guides

No abstract provided.

Proceedings Of The Sixteenth Annual Meeting Of The Georgia Association Of Mathematics Teacher Educators Front Matter

Proceedings of the Annual Meeting of the Georgia Association of Mathematics Teacher Educators

Contents of 16th Annual GAMTE Proceedings Front Matter:

• Officers of GAMTE
• Reviewers
• Copyright & Licensing Terms
• Purposes and Goals of GAMTE
• Conference Schedule
• Table of Contents

The Violin Through Centuries And Nations Scholarly Program Notes For A Graduate Violin Recital, Iasmim Bonfim De Carvalho

Research Papers

No abstract provided.

Analysis Of Guitar Works And Important Materials Used For Informed Performance, Joao Vitor David

Research Papers

This paper provides a short analysis and important historical background on the works performed by the author in his Master's Recital on May 4, 2023. The following pieces were chosen to exemplify the program's different technical and musical complexity levels. The five works covered are John Dowland's Lachrimae Pavan, Johann Sebastian Bach's Prelude and Allemande from BWV 996, Mauro Giuliani's Rossiniana n1, Miguel Llobet's Canciones Populares Catalanas, and Sergio Assad's Aquarelle. Dowland's section aims to show general information about his life, the lute, and materials to support an informed performance for guitarists. Bach's prelude and Allemande from the suite BWV …

U.S. Bison Industry: An Analysis Of Production, Health, And Market Dynamics, Morgan A. Young

Research Papers

The bison market has been becoming increasingly popular within recent years. However, this market is challenging for producers due to disease concerns, aggressive bison behaviors, nutritional and facility requirements and market risks for bison operations. Since most bison data began in 2020, forecasting bison meat prices remains difficult. This raises an important question: can bison meat cut prices be effectively hedged by using live cattle futures prices? This paper examines USDA bison meat cut price data and live cattle futures prices to determine potential correlations. A regression analysis, along with a dummy variable approach is utilized to evaluate the relationship. …

Current Behavior Analytic Research On Assent And Assent Withdrawal Of Students With Disabilities, Zailey K. Greeno

Research Papers

The field of behavior analysis is ever-evolving, just as the seven dimensions of applied behavior analysis have instructed it to (Baer et al., 1968). Over time, certain procedures, such as electric shock, spanking, and restriction of movement (Leaf et al., 2021), have become unethical, which has resulted in modifications to the Ethics Code for Behavior Analysts (Behavior Analyst Certification Board, 2020), as well as everyday practice to ensure these unethical interventions are no longer utilized. Despite these advances, there are still areas that are lacking in the field. Therefore, the current paper will review the literature in behavior analysis that …

Predicting School Proficiency In Illinois: A Fixed Effects Analysis Of Demographics, Funding, And Mobility, Lauren Johnson

Research Papers

Using Illinois State Board of Education data from 2017-2024, this paper analyzes the effects of black and low income enrollment, spending per pupil, chronic absenteeism, mobility rates, principal turnover and teacher retention rates on student proficiency at the school level. The data includes demographic information, test scores, mobility rates, attendance rates, teacher retention rates, principal turnover, and state and federal spending per school per pupil. Using fixed effects ordinary least squares regressions, it is found that the enrollment percentages of black and low income students are negatively correlated with students’ proficiency. Mobility rates, principal turnover, and chronic absenteeism are also …

Assessment Of The Level Of Relevancy Of Theological Education In The Chinese Context, Jacky Yeung

Dissertations

Problem

The contextualization of theological education has been a topic of academic discussion for many years with scholars exploring various angles related to this subject. Despite the ongoing need for contextualized theological education, an assessment of its relevancy in the Chinese setting has not been extensively studied. This dissertation aims to fill this research gap by assessing the relevancy of Adventist theological education in China and providing recommendations for improvement.

Method

The study employs a mixed-method approach, combining both quantitative and qualitative research methods to gain a comprehensive understanding of the issue. The quantitative stage involves a survey administered to …

Little Acts Of Kindness, Denis Kaiser

Lake Union Herald

No abstract provided.

Inner Life, Spiritual Leadership, And Spiritual Well-Being As Predictors Of The Organizational Performance Of Employees At A Seventh-Day Adventist University In Latin America, Patricio Ordoñez

Dissertations

Problem

While traditional leadership models, such as transactional and transformational leadership, have shown success, recent research highlights the need for leadership approaches that address the spiritual and ethical dimensions of individuals in the workplace. Leaders who fail to integrate spiritual leadership risk negatively impacting employee satisfaction, creativity, and overall organizational performance. Despite the well-established concepts of inner life and spiritual well-being, more research is needed to understand their effects on employee performance in faith-based institutions. This study sought to fill that gap by examining the relationship among inner life, spiritual leadership, and spiritual well-being as predictors of organizational performance among …

Correlating Text With History: A Critique Of Method In Daniel 11: 2b-25, Sungjin Kim

Dissertations

The Topic

Daniel 11 is the most detailed and complex historical prophecy in the book of Daniel, inviting a wide range of interpretations. Based on the chapter’s complexity, scholars from different schools have developed divergent readings grounded in their own methodological approaches and theological presuppositions.

The Purpose

The purpose of this study is to analyze the interpretive differences in Daniel 11 among three representative scholars—John J. Collins (preterist), J. Paul Tanner (futurist), and William H. Shea (historicist). It examines the methodological and presuppositional factors that contribute to these differences and proposes strategies for reducing interpretive divergence through more consistent and …

Anthropogenic Microfibres And Other Microplastics In The Sediments And Soils Of A Small, Moorland Reservoir (Burrator, Southwest England), Alexandra Sutton, Andrew Turner

School of Geography, Earth and Environmental Sciences

Little is known about the sources, transport and fate of anthropogenic microfibres (AMFs) and other microplastics (MPs) in dammed reservoirs. The aim of this study was to determine the concentrations, characteristics and pathways of anthropogenic particles in sediments and soils from a small, upland reservoir (Burrator, southwest England) and its influent and effluent river. Surface and subsurface (5 cm) sediments and soils were collected and characterised for organic matter and key geochemical (Ca, Fe and Rb) and anthropogenic (Pb and Zn) elements. AMFs and MPs were isolated from samples by flotation in ZnCl₂ and analysed microscopically; a selection was …

Global And Regional Estimation And Evaluation Of Suitable Roof Area For Solar And Green Roof Applications, Diana Ürge-Vorsatz, Souran Chatterjee, Luisa F. Cabeza, Gergely Molnár

School of Geography, Earth and Environmental Sciences

Buildings contribute to 40% of energy consumption and 30% of CO₂ emissions in 2019 globally, therefore it is necessary to exploit different solutions to decrease the corresponding energy demand, including green and cool roofs as well as on-site energy generation. To evaluate the potential of such technologies, one major input data for models and calculations is the available roof area, yet the literature shows a huge knowledge gap in this regard. Therefore, this paper contributes to filling this gap by estimating the roof availability over the period 2022–2060, using the detailed regional projections of the BISE (Building Integrated Solar …

A Systematic Review Of Biomonitoring Microplastics In Environmental Matrices: Emphasis On Airborne Particles, Dry Deposits, And Comparative Analysis With Traditional Methods, Faezeh Jahedi, Neamatollah Jaafarzadeh Haghighi Fard, Andrew Turner

School of Geography, Earth and Environmental Sciences

The use of plastics continues to rise each year due to their versatility and essential role in industries like manufacturing, agriculture, and food packaging. However, plastics present a serious environmental challenge because they take over 500 years to decompose. During this time, they break down into tiny particles known as microplastics (MPs), which are now found everywhere, water, soil, and even the air we breathe. Recently, researchers have even detected MPs in clouds, making their presence in the atmosphere a growing concern for both the environment and public health. Traditional methods for sampling MPs in the air, such as active …

Working Paper: Zero-Sum Thinking, Meritocratic Beliefs, And Preferences For Basic Income And Universal Healthcare, David Chavanne

Economics Faculty Publications

This study uses survey responses to explore how support for basic income and universal healthcare is linked to zero-sum thinking and meritocratic beliefs. Consistent with earlier work, I find that zero-sum thinking and weaker meritocratic beliefs both lead to greater levels of support for basic income and universal healthcare. Using a path analysis, zero-sum thinking is also found to strengthen support for basic income and universal healthcare along two separate channels -- one via zero-sum thinking’s direct effect on policy support and a second via an indirect effect, whereby zero-sum thinking is attached to weaker beliefs in meritocracy, which in …