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Articles 5341 - 5370 of 21203
Full-Text Articles in Social and Behavioral Sciences
Ecotourism At Dana Reserve, صفاء صبابحة, عبدالحميد أيوب الفناطسة
Ecotourism At Dana Reserve, صفاء صبابحة, عبدالحميد أيوب الفناطسة
Jerash for Research and Studies Journal مجلة جرش للبحوث والدراسات
This study aims to know the extent of the characteristics of ecotourism to Dana Reserve, The study sample included (259) tourists from different nationalities. The study questionnaire covered the following axes: demographic, social and economic characteristics of tourists and the characteristics of the tourist movement, and the opinions and impressions of tourists about the reserve and the tourism services provided to them, The extent of the environmental tourist characteristics applied to the Dana Reserve visitors was measured. The analysis of the data showed that the mental image formed by the tourist is good. As the mean for the paragraph was …
Managing For Radical Ecosystem Change: Applying The Resist-Accept-Direct (Rad) Framework, Abigail J. Lynch, Laura M. Thompson, Erik A. Beever, David N. Cole, Augustin C. Engman, Cat Hawkins Hoffman, Stephen T. Jackson, Trevor J. Krabbenhoft, David J. Lawrence, Douglas Limpinsel, Robert T. Magill, Tracy A. Melvin, John M. Morton, Robert Newman, Jay O. Peterson, Mark T. Porath, Frank J. Rahel, Gregor W. Schuurman, Suresh A. Sethi, Jennifer L. Wilkening
Managing For Radical Ecosystem Change: Applying The Resist-Accept-Direct (Rad) Framework, Abigail J. Lynch, Laura M. Thompson, Erik A. Beever, David N. Cole, Augustin C. Engman, Cat Hawkins Hoffman, Stephen T. Jackson, Trevor J. Krabbenhoft, David J. Lawrence, Douglas Limpinsel, Robert T. Magill, Tracy A. Melvin, John M. Morton, Robert Newman, Jay O. Peterson, Mark T. Porath, Frank J. Rahel, Gregor W. Schuurman, Suresh A. Sethi, Jennifer L. Wilkening
Biology Faculty Publications
Ecosystem transformation involves the emergence of persistent ecological or social–ecological systems that diverge, dramatically and irreversibly, from prior ecosystem structure and function. Such transformations are occurring at increasing rates across the planet in response to changes in climate, land use, and other factors. Consequently, a dynamic view of ecosystem processes that accommodates rapid, irreversible change will be critical for effectively conserving fish, wildlife, and other natural resources, and maintaining ecosystem services. However, managing ecosystems toward states with novel structure and function is an inherently unpredictable and difficult task. Managers navigating ecosystem transformation can benefit from considering broader objectives, beyond a …
Pattern Of Use Of Electronic Health Record (Ehr) Among The Chronically Ill: A Health Information National Trend Survey (Hints) Analysis, Rose Calixte, Sumaiya Islam, Zainab Toteh Osakwe, Argelis Rivera, Marlene Camacho-Rivera
Pattern Of Use Of Electronic Health Record (Ehr) Among The Chronically Ill: A Health Information National Trend Survey (Hints) Analysis, Rose Calixte, Sumaiya Islam, Zainab Toteh Osakwe, Argelis Rivera, Marlene Camacho-Rivera
Publications and Research
Effective patient–provider communication is a cornerstone of patient-centered care. Patient portals provide an effective method for secure communication between patients or their proxies and their health care providers. With greater acceptability of patient portals in private practices, patients have a unique opportunity to manage their health care needs. However, studies have shown that less than 50% of patients reported accessing the electronic health record (EHR) in a 12-month period. We used HINTS 5 cycle 1 and cycle 2 to assess disparities among US residents 18 and older with any chronic condition regarding the use of EHR for secure direct messaging …
The Incubation Effect Among Students Playing An Educational Game For Physics, May Marie P. Talandron-Felipe, Ma. Mercedes T. Rodrigo
The Incubation Effect Among Students Playing An Educational Game For Physics, May Marie P. Talandron-Felipe, Ma. Mercedes T. Rodrigo
Department of Information Systems & Computer Science Faculty Publications
The incubation effect (IE) is a problem-solving phenomenon composed of three phases: pre-incubation where one fails to solve a problem; incubation, a momentary break where time is spent away from the unsolved problem; and post-incubation where the unsolved problem is revisited and solved. Literature on IE was limited to experiments involving traditional classroom activities. This initial investigation showed evidence of IE instances in a computer-based learning environment. This paper consolidates the studies on IE among students playing an educational game called Physics Playground and presents further analysis to examine the incidence of post-incubation or the revisit to a previously unsolved …
Rowing Concerns: Collaborative Governance And Stakeholder Determination In The Central Oregon's Deschutes Basin, Noel Vineyard
Rowing Concerns: Collaborative Governance And Stakeholder Determination In The Central Oregon's Deschutes Basin, Noel Vineyard
Dissertations and Theses
In 2019, a coalition of irrigation districts in central Oregon's Deschutes Basin submitted the Deschutes Basin Habitat Conservation Plan to the US Department of Fish and Wildlife. This Habitat Conservation Plan purported to have been constructed through a collaborative governance structure between the irrigation districts and various community stakeholders who all had interests in basin management, however segments of the Basin's river recreation community began to raise concerns that their voices were not included. The purpose of this research was to investigate how stakeholder status in the Deschutes Basin is created through collaborative water governance processes like development of the …
Development And Validation Of A Scale To Measure Songwriting Self-Efficacy (Sses) With Secondary Music Students, Patrick K. Cooper
Development And Validation Of A Scale To Measure Songwriting Self-Efficacy (Sses) With Secondary Music Students, Patrick K. Cooper
USF Tampa Graduate Theses and Dissertations
Social cognitive theory was developed to explain how individuals learn, in part, by witnessing the behavior of others. Self-efficacy is a construct within social cognitive theory which indicates the beliefs that an individual can be successful at a task under specific situational demands. The sources of self-efficacy include self-evaluating past experiences to predict future success, comparing our abilities to those around us, the verbal and social feedback we get from others, and the physiological feelings we experience when engaged in or thinking about the task. Measures of self-efficacy have been shown to be accurate predictors of successful learning outcomes, achievement, …
An Analysis Of The Presence Of Dialogic Communication Features On Indiana Environmental Organizations' Websites, Jessica Moon
An Analysis Of The Presence Of Dialogic Communication Features On Indiana Environmental Organizations' Websites, Jessica Moon
LSU Master's Theses
Dialogic communication is a two-way form of communication that allows entities such as organizations and their publics to share their viewpoints and contribute to decision-making processes openly and equally. The Five Dialogic Principles of Public Relations (ease of use of the interface, usefulness of information, conservation of visitors, generation of return visits, and dialogic loop) is a framework that has been used to examine this form of communication online. Research has shown that organizations’ websites have a generally low presence of features related to the Five Dialogic Principles. The goal of the present study was to determine the …
Economic Implications Of Disasters On Cooperative Sector In Calabarzon, Philippines, Ceptryl S. Mina, Liezel S. Cruz
Economic Implications Of Disasters On Cooperative Sector In Calabarzon, Philippines, Ceptryl S. Mina, Liezel S. Cruz
Journal of Economics, Management and Agricultural Development
Cooperatives serve as an important tool for improving the living conditions of members and their community. However, like any other business enterprise, cooperatives are also exposed to disasters that may affect their
operations. This study analyzed the economic effects of disasters on cooperatives in CALABARZON, Philippines. Results of the Pearson’s chi-square test showed that cooperatives are exposed to various types of natural, biological, and humaninduced disasters. It was found out that disasters lead to increased operational costs and reduced net surplus. Using emergency-use-only cell phones and generators, changing production patterns, limiting high risk-customers, buying insurance, and establishing online and offline …
Experiences And Coping Strategies During The Covid-19 Pandemic Among Fishers And Farmers In The Island Province Of Guimaras, Philippines, Gay Margarett A. Gange, Louie Marie T. Eluriaga, Alice Joan G. Ferrer
Experiences And Coping Strategies During The Covid-19 Pandemic Among Fishers And Farmers In The Island Province Of Guimaras, Philippines, Gay Margarett A. Gange, Louie Marie T. Eluriaga, Alice Joan G. Ferrer
Journal of Economics, Management and Agricultural Development
This study describes the experiences and coping strategies related with the COVID-19 threat and the community quarantine policy by the fishers and farmers in the island province of Guimaras. Both food producers faced marketrelated problems such as low demand, low prices of catch and produce, and logistical problems. While the in-kind support (e.g., food provisions) received and adaptive measures (e.g., continued with fishing or adjusted harvest schedule; use of social media or delivery services in marketing) allowed them to get by during the pandemic, there is a need to develop more resilient farming and fishing households. Short-term support can be …
So How To Make Group Decisions? Arrow's Impossibility Theorem 70 Years After, Hung T. Nguyen, Olga Kosheleva, Vladik Kreinovich
So How To Make Group Decisions? Arrow's Impossibility Theorem 70 Years After, Hung T. Nguyen, Olga Kosheleva, Vladik Kreinovich
Departmental Technical Reports (CS)
In 1951, Kenneth Arrow proved that it is not possible to have a group decision making procedure that satisfies reasonable requirements like fairness. From the theoretical viewpoint, this is a great result -- well-deserving the Nobel Prize that was awarded to Professor Arrow. However, from the practical viewpoint, the question remains -- so how should we make group decisions? A usual way to solve this problem is to provide some reasonable heuristic ideas, but the problem is that different seemingly reasonable idea often lead to different group decision -- this is known, e.g., for different voting schemes. In this paper, …
Archipelago On Lockdown: An Assessment Of The Effects Of The Covid-19 Pandemic On Philippines’ Micro, Small, And Medium Enterprises (Msmes) Across The Food Value Chain, Remund Jordan D. Labios, Dinah Pura T. Depositario, Nohreen Ethel P. Manipol, Renen Szillardo C. De Guzman, Dia Noelle F. Velasco
Archipelago On Lockdown: An Assessment Of The Effects Of The Covid-19 Pandemic On Philippines’ Micro, Small, And Medium Enterprises (Msmes) Across The Food Value Chain, Remund Jordan D. Labios, Dinah Pura T. Depositario, Nohreen Ethel P. Manipol, Renen Szillardo C. De Guzman, Dia Noelle F. Velasco
Journal of Economics, Management and Agricultural Development
The paper examined the effects of COVID-19 pandemic on the Philippines’ MSMEs across the food value chain and the strategies that food-based MSMEs employed to cope with disruptions. A food value chain framework was used to
analyze the food-based MSMEs, focusing on the input and service provision, production/farming, processing, transport and storage, retailing, and consumption. Results revealed the following: (1) different quarantine protocols across provincial and local boundaries contributed to the complexity of transporting inputs and products; (2) limited mobility of manpower contributed to the challenges of continuing business operations; (3) there was an observed increase in new financing programs …
Quantifying The Representation Of Plant Communities In The Protected Areas Of The U.S.: An Analysis Based On The U.S. National Vegetation Classification Groups, Alexa Mckerrow, Anne Davidson, Matthew Rubino, Don Faber-Langendoen, Daryn Dockter
Quantifying The Representation Of Plant Communities In The Protected Areas Of The U.S.: An Analysis Based On The U.S. National Vegetation Classification Groups, Alexa Mckerrow, Anne Davidson, Matthew Rubino, Don Faber-Langendoen, Daryn Dockter
Public Policy and Administration Faculty Publications and Presentations
Plant communities represent the integration of ecological and biological processes and they serve as an important component for the protection of biological diversity. To measure progress towards protection of ecosystems in the United States for various stated conservation targets we need datasets at the appropriate thematic, spatial, and temporal resolution. The recent release of the LANDFIRE Existing Vegetation Data Products (2016 Remap) with a legend based on U.S. National Vegetation Classification allowed us to assess the conservation status of plant communities of the U.S. The map legend is based on the Group level of the USNVC, which characterizes the regional …
An Assessment Of Swine Industry In The Philippines, Christian Paul L. Fang, Cenon D. Elca
An Assessment Of Swine Industry In The Philippines, Christian Paul L. Fang, Cenon D. Elca
Journal of Economics, Management and Agricultural Development
This paper assessed the performance of swine industry in the Philippines by synthesizing secondary data from 1990 to 2020. Inefficiencies in major swine value chain segments were identified. The factors affecting swine production and pork consumption were determined using multiple regression analysis. The bottlenecks found along the chain are yellow corn supply deficit, fragmented structures of yellow corn and backyard farms, high disease susceptibility of backyard farms, and compromised meat quality produced from private slaughterhouses. The own price, inventory, and slaughtered animals have significant direct effects on swine production. The retail price of pork and income have significant direct influences …
Assimilation Of Seasonal Moisture Variability In North America And Asia For The Last Millennium, Chang Liu
Assimilation Of Seasonal Moisture Variability In North America And Asia For The Last Millennium, Chang Liu
Graduate Theses and Dissertations
The seasonal tree-ring chronologies that recorded discrete moisture signal for warm and cool season have been used to reconstruct the North America Seasonal Precipitation Atlas (NASPA) by the point-by-point regression method, and the results indicated that they can fairly reproduce the seasonal precipitation variability in the past. Compared with reconstructions using only paleoclimate proxy data, the paleoclimate data assimilation (PDA) considers both proxy data and climate model output, so the PDA reconstructions are consistent with both the climate signals reflected by the proxy data and the physical mechanisms represented by climate models. Based on the tree rings with discrete seasonal …
College Of Natural Sciences Newsletter, July 2021, College Of Natural Sciences
College Of Natural Sciences Newsletter, July 2021, College Of Natural Sciences
College of Natural Sciences Newsletters and Reports
Volume 2, Issue 7.
Page 1 Dean's Message
Page 2 Celebrating Three Years
Page 3 Summer School Travel
Page 4 Media Coverage of CNS
Page 5 Chemistry Teachers Visit
Page 5 Remembering Dr. Warren Hein
Page 6 Research Spotlights: Undergraduate Summer Experiences
Page 7 Open PRAIRIE Data; Grants Awarded in CNS
21st Century Ecopoetics And Ecotheory, Robert Balun
21st Century Ecopoetics And Ecotheory, Robert Balun
Open Educational Resources
Ecopoetics is the study of literature that is concerned with ecology and nature. However, beyond just literature about nature, this course will examine how ecology and nature have become complicated in the 21st century, the age of the Anthropocene, the age of the climate crisis and the 6th mass extinction (don’t worry, we will define these and other key terms).
In the 21st century, humans are now confronted with a growing awareness of their destructive impact on the earth, its environments, and its human and non-human inhabitants. In this class we will examine how ecology and nature have become complicated …
Eye-Tracking Study: Systematic Effects Of Task Instructions On Selective Attention And Inductive Learning, Kumiko Nakajima, Olivia Dickinson, Michael E. Roberts Phd
Eye-Tracking Study: Systematic Effects Of Task Instructions On Selective Attention And Inductive Learning, Kumiko Nakajima, Olivia Dickinson, Michael E. Roberts Phd
Annual Student Research Poster Session
Participants studied paintings with respective task instructions and were subsequently tested on identification performance for trained paintings as well as new paintings by the same artists. Eye tracking analyses indicate that each task instruction led to distinctive fixation patterns for the paintings, which may influence inductive learning performance. Generally, participants given the alternative pattern of the instructions performed significantly better than those who received the successive pattern of instructions both in trained and new paintings.
A Look Into Increasing The Number Of Veterans And Former Government Employees Converting To Career And Technical Cybersecurity Teachers, Vukica M. Jovanovic, Michael Anthony Crespo, Drew E. Brown, Deborah Marshall, Otilia Popescu, Murat Kuzlu, Petros J. Katsioloudis, Linda Vahala
A Look Into Increasing The Number Of Veterans And Former Government Employees Converting To Career And Technical Cybersecurity Teachers, Vukica M. Jovanovic, Michael Anthony Crespo, Drew E. Brown, Deborah Marshall, Otilia Popescu, Murat Kuzlu, Petros J. Katsioloudis, Linda Vahala
Engineering Technology Faculty Publications
The current state of technology with recent explosions in the digital processing of paperwork, computer networking use, and online and virtual approaches to areas, which until very recently had traditional and non-computerized ways of operating, led to a steady increase in the demand for jobs in the area of computer science and cybersecurity. The education system, the pipeline for the incoming workforce, needs to keep up with this tremendous pace in technology and the job market. The current K-12 school system has been extensively challenged to fill out necessary positions in order to address the increasing need for programs that …
Of Biodiversity, Boundaries, And Distribution: The Myxomycetes Of The Philippines And Beyond, Sittie Aisha Bustamante Macabago
Of Biodiversity, Boundaries, And Distribution: The Myxomycetes Of The Philippines And Beyond, Sittie Aisha Bustamante Macabago
Graduate Theses and Dissertations
This dissertation contains a compilation of independently performed studies primarily focusing on the myxomycetes (plasmodial slime molds) from the Philippines and integrating local and worldwide data to demonstrate regional and global trends. The major themes include the following: (I) a review of the diverse group of spore-producing amoeboid protists, including the myxomycetes; (II-IV) diversity assessments in three different groups of islands in the Philippine archipelago; (V) mapping the myxomycetes found in the Philippines for databasing and analyzing the geocoded data; (VI) a study on regional boundaries, including the Philippines, using myxomycete species composition; and, (VII) creating a global species distribution …
Microfabrication And Electrochemical Characterization Of A Novel Su-8 Probe With An Array Of Individually Addressable Electrodes Suitable For Redox Cycling Experiments In Ultra-Small Volumes, Mahsa Lotfi Marchoubeh
Microfabrication And Electrochemical Characterization Of A Novel Su-8 Probe With An Array Of Individually Addressable Electrodes Suitable For Redox Cycling Experiments In Ultra-Small Volumes, Mahsa Lotfi Marchoubeh
Graduate Theses and Dissertations
Redox cycling is an electrochemical technique that utilizes closely spaced generator and collector electrodes to cycle reversible redox species between their oxidative states. With advantages in signal amplification, selectivity of species based on their electrochemical reaction mechanism, and limited or no background subtraction, this technique is well suited for selective detection of important electrochemically active molecules such as dopamine at basal or slowly changing levels.
Miniaturized medical devices have become an area of great interest for measurement of chemicals in limited volumes with low concentrations or in sensitive tissues. A probe on a polymeric SU-8 substrate with suitable dimensions and …
Nutrient Sources, Loads And Trends Vary Spatially And Temporally Within The Poteau River Watershed And Lake Wister, Oklahoma, Abbie Lasater
Nutrient Sources, Loads And Trends Vary Spatially And Temporally Within The Poteau River Watershed And Lake Wister, Oklahoma, Abbie Lasater
Graduate Theses and Dissertations
Excess inputs of nutrients and sediments jeopardize drinking water sources, aquatic life habitats, and aesthetic quality of freshwater resources for recreation. The purpose of this dissertation was to analyze long-term water quality trends and loads in the Upper Poteau River Watershed (UPRW) and the Lake Wister Watershed (LWW), and analyze internal phosphorus (P) loads in Lake Wister, Oklahoma. Additionally, this dissertation sought to review the literature for methods of prioritizing subwatersheds for watershed management using watershed models, implement a cost efficient method to remotely monitor streamflow and estimate constituent loads in small-scale watersheds, and finally, to validate the Soil Water …
Understanding And Contextualizing Foraging Among Recreational Opportunities In The North Central United States, Iris I. Mcfarlin
Understanding And Contextualizing Foraging Among Recreational Opportunities In The North Central United States, Iris I. Mcfarlin
School of Natural Resources: Dissertations, Theses, and Student Research
Over the past few decades, there has been a resurgence in popularity and recognition of foraging for wild products and foods. Despite the cultural importance and ubiquity of foraging, there have been relatively few scientific investigations (as compared to other consumptive outdoor activities such as hunting and fishing) of the social factors influencing foraging behavior, landscape preferences, and the types of materials foraged in the United States. As such, there is a fundamental need to understand more about the practice and about those who participate. We conducted two surveys to gather information on foragers’ motivations and demographic characteristics and to …
Consulting Place As Stakeholder: Accessing The Input Of Ecological Community, Hunter Adkisson
Consulting Place As Stakeholder: Accessing The Input Of Ecological Community, Hunter Adkisson
Landscape Architecture Undergraduate Honors Theses
This is a project about how landscape architects approach the landscape in their design process. Indigenous worldviews hold that the world is living and animate in its own right. When we consider stakeholder engagement in this light, the need arises to extend the definition of stakeholders to include the ecological communities of place – the flora, fauna, soils, and other non-human elements of place. To gather that input, I experimented with techniques to access a greater awareness of ecological community at two sites with different levels of urbanity and types of land management practices. This experimental approach was surprisingly successful …
Frameaxis: Characterizing Microframe Bias And Intensity With Word Embedding, Haewoon Kwak, Jisun An, Elise Jing Jing, Yong-Yeol Ahn
Frameaxis: Characterizing Microframe Bias And Intensity With Word Embedding, Haewoon Kwak, Jisun An, Elise Jing Jing, Yong-Yeol Ahn
Research Collection School Of Computing and Information Systems
Framing is a process of emphasizing a certain aspect of an issue over the others, nudging readers or listeners towards different positions on the issue even without making a biased argument. Here, we propose FrameAxis, a method for characterizing documents by identifying the most relevant semantic axes (“microframes”) that are overrepresented in the text using word embedding. Our unsupervised approach can be readily applied to large datasets because it does not require manual annotations. It can also provide nuanced insights by considering a rich set of semantic axes. FrameAxis is designed to quantitatively tease out two important dimensions of how …
Economically Optimal Nitrogen Side-Dressing Based On Vegetation Indices From Satellite Images Through On-Farm Experiments, Qianqian Du
Department of Agricultural Economics: Dissertations, Theses, and Student Research
Optimal N fertilizer rates for corn (Zea mays L.) vary substantially within and among fields, and by corn growth stages. Improving N side-dressing management can improve fertilizer use efficiency, farmers’ profitability, and the sustainability of crop production. The objective of this study is to introduce a framework along with a methodology that can find the site-specific economically optimal N rates (EONRs) within one field for a particular growing season. An on-farm experiment was conducted in the 2019 corn growing season. A base N rate was applied uniformly on the field. NDRE images from the Sentinel-2 satellite were observed during …
Flood Hazard Mapping And Assessment Of Precipitation Monitoring System Using Gis-Based Morphometric Analysis And Trmm Data: A Case Study Of The Wadi Qena Watershed, Egypt, Wael M. Elsadek, Wael E. Mahmod, Mona G. Ibrahim
Flood Hazard Mapping And Assessment Of Precipitation Monitoring System Using Gis-Based Morphometric Analysis And Trmm Data: A Case Study Of The Wadi Qena Watershed, Egypt, Wael M. Elsadek, Wael E. Mahmod, Mona G. Ibrahim
Applied Environmental Research
Wadi Qena is one of the Nile Valley areas particularly at risk of severe flash flooding, located in Egypt. The study aims to verify TRMM rainfall data (TRMM 3B42), using eight stations across Egypt as well as relies on morphometric analysis to generate a flood risk map based on the ranking method. Three process could be recognized through the study, calibration, correction and verification processes. The results discuss the match daily rainfall trends of TRMM and observed data, producing a correction equation for TRMM data with root mean square error (RMSE) value of 0.837 mm d-1 and R2= 0.238 (calibration …
Biochar From Rice Husk As Efficient Biosorbent For Procion Red Removal From Aqueous Systems, Neza R. Palapa, Tarmizi Taher, Novie Juleanti, Normah Normah, Aldes Lesbani
Biochar From Rice Husk As Efficient Biosorbent For Procion Red Removal From Aqueous Systems, Neza R. Palapa, Tarmizi Taher, Novie Juleanti, Normah Normah, Aldes Lesbani
Applied Environmental Research
Numerous reports have elucidated the use of biochar (BC) to adsorb dyes from wastewater. However, its applicability for adsorbing Procion Red, which causes carcinogenic and mutagenic effects on aquatic life, has not been studied. In this work, biochar produced from rice husk in Sumatera, Indonesia was used as a biosorbent for Procion Red removal from aqueous systems. Rice husk-BC was characterised using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, surface area specific analysis, and scanning electron microscopy (SEM) for mor-phological analysis. The characterisation showed a (002) reflection peak at 2θ = 23° with broad and quite intense diffraction, which …
Monitoring The Land Cover Changes In Mangrove Areas And Urbanization Using Normalized Difference Vegetation Index And Normalized Difference Built-Up Index In Krabi Estuary Wetland, Krabi Province, Thailand, Katawut Waiyasusri
Applied Environmental Research
Krabi Estuary Wetland (KEW) is an outstanding wetland with an estuary environment. At present, the tourism industry has rapidly grown, resulting in the impact of land cover changes. This research aims to assess the changes that have occurred in the KEW from 1999 to 2020 using NDVI and NDBI for monitoring changes in mangrove areas and urbanization in Krabi Province, Thailand. Landsat satellite images in years 1999, 2009 and 2020 were classified by using a band ratio to create land cover maps. The results show that NDVI between 0.41–1.00 clearly shows the mangrove forest area, while NDBI between 0.01–0.40 shows …
Application Of Gis And Multi-Criteria Statistical Techniques In Assessing Water Quality In The Coastal Province Of Vietnamese Mekong Delta, Giao Thanh Nguyen, Thi Hong Nhien Huynh
Application Of Gis And Multi-Criteria Statistical Techniques In Assessing Water Quality In The Coastal Province Of Vietnamese Mekong Delta, Giao Thanh Nguyen, Thi Hong Nhien Huynh
Applied Environmental Research
The study was conducted to evaluate the quality and spatial distribution of surface water quality in Soc Trang, a coastal province using Geographic information system (GIS) and multivariate statistical analysis. Water monitoring data was collected from 19 sampling locations with 19 parameters were analyzed from February 2019 to August 2020. The results indicated that water quality was contaminated with organic matters, nutrients, coliforms and salinity. Water quality index (WQI=22–73) indicated that water quality was from poor to medium level. Cluster analysis (CA) classified 19 monitoring sites into 7 groups and 19 months into 3 seasons including rainy season, rainy season-early …
Adsorption Of Methylene Blue By Low-Cost Biochar Derived From Elephant Dung, Yanasinee Suma, Nittaya Pasukphun, Numfon Eaktasang
Adsorption Of Methylene Blue By Low-Cost Biochar Derived From Elephant Dung, Yanasinee Suma, Nittaya Pasukphun, Numfon Eaktasang
Applied Environmental Research
Elephant dung biochar (ED350) prepared by controlled heating at 350 ºC was used to adsorb methylene blue (MB) in an aqueous solution. The effects of adsorption time, pH, adsorbent dosage, and initial MB concentration were examined. Kinetic, isotherm, and thermo-dynamic models were then further analyzed to determine the adsorption. The results show that ED350 was found to be efficient within 180 min. The optimum pH of MB adsorption was 11. The Langmuir isotherm model was found to be the most suitable fit for the adsorption equilibrium data, with ED350 having a homogeneous surface. The calculated equilibrium parameter (RL) …