Open Access. Powered by Scholars. Published by Universities.®

Environmental Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

36,260 Full-Text Articles 47,003 Authors 10,053,589 Downloads 300 Institutions

All Articles in Environmental Sciences

Faceted Search

36,260 full-text articles. Page 6 of 815.

Longitudinal Study Of The Attitudes And Behaviors Of Environmental Education Program Participants., Kasie R. Dugas 2018 Louisiana State University and Agricultural and Mechanical College

Longitudinal Study Of The Attitudes And Behaviors Of Environmental Education Program Participants., Kasie R. Dugas

LSU Master's Theses

The goal of this longitudinal study was to measure the attitudes and behaviors of participants of the Marsh Maneuvers program over the course of the last 25 years. The goal of the Marsh Maneuvers program is to educate students into becoming environmentally literate adults. Environmental literacy is considered herein to be people possessing knowledge about and positive attitudes and behaviors towards the environment. Although students learn basic science and environmental knowledge in the classroom, true environmental literacy is believed to require more hands-on understanding of the material. To evaluate the effectiveness of the program, the following three objectives were completed ...


Modern And Paleoecological Perspectives On A Terrestrial-Marine Linkage In The Falkland Islands, Dulcinea V. Groff 2018 University of Maine

Modern And Paleoecological Perspectives On A Terrestrial-Marine Linkage In The Falkland Islands, Dulcinea V. Groff

Electronic Theses and Dissertations

The Falkland Islands are a biodiversity hotspot in the South Atlantic Ocean, with some of the world’s most important populations of seabirds and seals. The impact of climate change on these marine populations and their coastal breeding habitat in the Falklands is unknown. Coastal grasslands of Poa flabellata (tussac grass) form critical breeding habitat for wildlife, but have been heavily degraded by the introduction of livestock in the 17th century. This dissertation investigates the impacts of global change (climate change, grazing) on P. flabellata and its sensitivity to the fecal nutrient subsidies provided by marine wildlife. Chapter 1 ...


Selective Glucose Isomerization To Fructose Via Nitrogen-Doped Solid Base Catalyst Derived From Spent Coffee Grounds, Season S. Chen, Iris K.M. Yu, Dong-Wan Cho, Hocheol Song, Daniel C.W. Tsang, Jean-Philippe Tessonnier, Yong Sik Ok, Chi Sun Poon 2018 Iowa State University

Selective Glucose Isomerization To Fructose Via Nitrogen-Doped Solid Base Catalyst Derived From Spent Coffee Grounds, Season S. Chen, Iris K.M. Yu, Dong-Wan Cho, Hocheol Song, Daniel C.W. Tsang, Jean-Philippe Tessonnier, Yong Sik Ok, Chi Sun Poon

Chemical and Biological Engineering Publications

In this work, glucose isomerization to fructose was conducted via a solid base biochar catalyst derived from spent coffee grounds and melamine. The X-ray photoelectron spectroscopy (XPS) spectra identified the majority of pyridinic nitrogen on the biochar surface, which imparted the strong base character of the catalyst. Activity of the catalyst was evidenced by fast conversion of glucose (12%) and high selectivity to fructose (84%) in 20 min at a moderate temperature (120 °C) compared to recently reported immobilized tertiary amines at comparable N concentrations (10-15 mol% relative to glucose). By increasing the reaction temperature to 160 °C, fructose yield ...


Big Oil And Climate Change Denial, David Schelhaas 2018 Dordt College

Big Oil And Climate Change Denial, David Schelhaas

Faculty Work Comprehensive List

"One of the Alliance’s most basic commitments is to free market economic development fueled by coal and oil that will, as they see it, lift the poor out of poverty."

Posting about the philosophy of the Cornwall Alliance for the Stewardship of Creation from In All Things - an online journal for critical reflection on faith, culture, art, and every ordinary-yet-graced square inch of God’s creation.

https://inallthings.org/big-oil-and-climate-change-denial/


Not Masters But Stewards Of The Earth, David Schelhaas 2018 Dordt College

Not Masters But Stewards Of The Earth, David Schelhaas

Faculty Work Comprehensive List

"We are not servants of the earth but of the creator and Master of the earth, God."

Posting about the beliefs of the ­­­­­­­­Cornwall Alliance for the Stewardship of Creation from In All Things - an online journal for critical reflection on faith, culture, art, and every ordinary-yet-graced square inch of God’s creation.

https://inallthings.org/not-masters-but-stewards-of-the-earth/


Seared And Bleared, Smudged And Smelly, David Schelhaas 2018 Dordt College

Seared And Bleared, Smudged And Smelly, David Schelhaas

Faculty Work Comprehensive List

"Most evangelicals oppose the very idea of climate change and are trying to inoculate their children so that they do not catch the 'climate concern' disease."

Posting about ­­­­­­­­why some Christians are climate change deniers from In All Things - an online journal for critical reflection on faith, culture, art, and every ordinary-yet-graced square inch of God’s creation.

https://inallthings.org/seared-and-bleared-smudged-and-smelly/


Photocatalytic Activity: Experimental Features To Report In Heterogeneous Photocatalysis, Md. Ariful Hoque, Marcelo I. Guzman 2018 University of Kentucky

Photocatalytic Activity: Experimental Features To Report In Heterogeneous Photocatalysis, Md. Ariful Hoque, Marcelo I. Guzman

Chemistry Faculty Publications

Heterogeneous photocatalysis is a prominent area of research with major applications in solar energy conversion, air pollution mitigation, and removal of contaminants from water. A large number of scientific papers related to the photocatalysis field and its environmental applications are published in different journals specializing in materials and nanomaterials. However, many problems exist in the conception of papers by authors unfamiliar with standard characterization methods of photocatalysts as well as with the procedures needed to determine photocatalytic activities based on the determination of “apparent quantum efficiencies” within a wavelength interval or “apparent quantum yields” in the case of using monochromatic ...


Book Review: Teaching Climate Change To Adolescents: Reading, Writing, And Making A Difference, Antonio Lopez 2018 John Cabot University

Book Review: Teaching Climate Change To Adolescents: Reading, Writing, And Making A Difference, Antonio Lopez

Journal of Media Literacy Education

Teaching Climate Change to Adolescents: Reading, Writing, and Making a Difference, is a book for English language arts and media literacy teachers that provides abundant resources for educators wanting to incorporate climate change instruction into their classrooms. This review explores the usefulness of the book and discusses more broadly the barriers and opportunities for incorporating environmental issues into media literacy education.


Metabolomics For Biomonitoring: Evaluation, Recommendations, And Test Of Efficacy, Sarah M. McKenzie 2018 The University of Western Ontario

Metabolomics For Biomonitoring: Evaluation, Recommendations, And Test Of Efficacy, Sarah M. Mckenzie

Electronic Thesis and Dissertation Repository

Effective biomonitoring of aquatic environments is an integral component of ecosystem protection. The metabolome is an emerging indicator that may have the potential to serve as an ideal bioindicator due to its intrinsic capacity to detect physiological changes in organisms that could foreshadow ecosystem change. My thesis consisted of two complementary objectives. First, the metabolome was evaluated against several established criteria for an ideal bioindicator and found to have significant potential. Recommendations were also made regarding implementation of the metabolome into existing biomonitoring programs. Second, the metabolome of Hexagenia spp. was evaluated as a potential indicator for environmental effects of ...


Spatial Analysis Of Borrow Pits Along The Platte River In South-Central Nebraska, Usa, In 1957 And 2016, Nicole M. Pauley, Mary J. Harner, Emma M. Brinley Buckley, Paul R. Burger, Keith Geluso 2018 University of Nebraska at Kearney

Spatial Analysis Of Borrow Pits Along The Platte River In South-Central Nebraska, Usa, In 1957 And 2016, Nicole M. Pauley, Mary J. Harner, Emma M. Brinley Buckley, Paul R. Burger, Keith Geluso

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The Central Platte River Valley (CPRV) of Nebraska provides critical habitat for wildlife, while serving agricultural, indus­trial, and other human uses. Mining of sand and gravel from the floodplain of the Platte River has supported construction of roads and other uses, and this extraction has created many borrow-pit ponds, lakes, and other small bodies of standing water (hereafter borrow-pits), further transforming riparian and prairie habitats. The objective of this study was to compare the abundance, size, and distribution of borrow pits before construction of Interstate 80 (1957) and at present (2016) from Lexington to Chapman, Nebraska, a length of ...


Land-Use/Land-Cover Changes And Their Influence On The Ecosystem In Chengdu City, China During The Period Of 1992–2018, Xiaojuan Lin, Min Xu, Chunxiang Cao, Ramesh P. Singh, Wei Chen, Hongrun Ju 2018 Chinese Academy of Sciences

Land-Use/Land-Cover Changes And Their Influence On The Ecosystem In Chengdu City, China During The Period Of 1992–2018, Xiaojuan Lin, Min Xu, Chunxiang Cao, Ramesh P. Singh, Wei Chen, Hongrun Ju

Mathematics, Physics, and Computer Science Faculty Articles and Research

Due to urban expansion, economic development, and rapid population growth, land use/land cover (LULC) is changing in major cities around the globe. Quantitative analysis of LULC change is important for studying the corresponding impact on the ecosystem service value (ESV) that helps in decision-making and ecosystem conservation. Based on LULC data retrieved from remote-sensing interpretation, we computed the changes of ESV associated with the LULC dynamics using the benefits transfer method and geographic information system (GIS) technologies during the period of 1992–2018 following self-modified coefficients which were corrected by net primary productivity (NPP). This improved approach aimed to ...


A Qualitative Investigation Of Farmer And Rancher Perceptions Of Trees And Woody Biomass Production On Marginal Agricultural Land, Ashley Hand, John Tyndall 2018 Iowa State University

A Qualitative Investigation Of Farmer And Rancher Perceptions Of Trees And Woody Biomass Production On Marginal Agricultural Land, Ashley Hand, John Tyndall

Natural Resource Ecology and Management Publications

Bioenergy produced from perennial feedstocks such as woody biomass could serve as an opportunity to strengthen local and regional economies and also jointly produce various environmental services. In order to assess the potential for biomass- based bioenergy, it’s essential to characterize the interest that potential biomass suppliers have in such an endeavor. In the U.S. Great Plains region, this largely means assessing relevant perceptions of farmers and ranchers. We conducted a series of farmer and rancher oriented focus groups in North Dakota, South Dakota, Nebraska and Kansas to qualitatively explore opinions about the role that trees can play ...


Spatial Structuring Of Cellulase Gene Abundance And Activity In Soil, Jinlyung Choi, Elizabeth Bach, Jaejin Lee, Jared Flater, Shane Dooley, Adina Howe, Kirsten S. Hofmockel 2018 Iowa State University

Spatial Structuring Of Cellulase Gene Abundance And Activity In Soil, Jinlyung Choi, Elizabeth Bach, Jaejin Lee, Jared Flater, Shane Dooley, Adina Howe, Kirsten S. Hofmockel

Agricultural and Biosystems Engineering Publications

Microbial mechanisms controlling cellulose degradation in soil habitats remains a critical knowledge gap in understanding and modeling terrestrial carbon-cycling. We investigated land management and soil micro-habitat influences on soil bacterial communities and distribution of cellulose-degrading enzyme genes in three bioenergy cropping systems (corn, prairie, and fertilized prairie). Within the soil, aggregates have been examined as potential micro- habitats with specific characteristics influencing resource partitioning and regulation, thus we also investigated genes associated with cellulose degradation within soil aggregate fractions from the fertilized prairie system. Soil bacterial communities and carbon-cycling gene presence varied across land management and soil microhabitats. Examination of ...


Characterization And Evaluation Of Cordless Nailer Performance For Liquid And Gaseous Fuels, Mark Carioscio 2018 Marquette University

Characterization And Evaluation Of Cordless Nailer Performance For Liquid And Gaseous Fuels, Mark Carioscio

Master's Theses (2009 -)

The Paslode Cordless XP Framing Nailer is a combustion-powered nail gun that operates using a fuel blend of a propylene and 1-butene. This tool is designed to drive nails using a piston driven by a combustion reaction. The current fuel blend is able to fire approximately 1200 shots per fuel cartridge and match the energy output of pneumatic, corded nailers on the market. This thesis is written with the intent to gain a better understanding of the operation of the tool and how its performance varies when the fuel source is altered. A bizonal combustion model was created to simulate ...


Improving International Development Evaluation Through Geospatial Data And Analysis, Malte Lech, Juha Ilari Uitto, Sven Harten, Geeta Batra, Anupam Anand 2018 German Institute for Development Evaluation, DEval

Improving International Development Evaluation Through Geospatial Data And Analysis, Malte Lech, Juha Ilari Uitto, Sven Harten, Geeta Batra, Anupam Anand

International Journal of Geospatial and Environmental Research

Increasing availability of new types of data strengthens geospatial research in different scientific fields and opens up opportunities to better measure results and evaluate the impacts of development interventions. This article presents examples where geospatial approaches have been applied in evaluations and thus demonstrate the potential use in informing policy design through scientifically sound evidence as well as learning.

The authors illustrate innovative ways of employing geospatial data and analysis in impact evaluations of international development cooperation. These interventions are concerned with topics such as biodiversity conservation, land degradation, sustainable use of natural resources, and disaster risk management. Recent methodological ...


Academic Job Tips By Costanza Rampini - Phone Interview, Costanza Rampini 2018 San Jose State University

Academic Job Tips By Costanza Rampini - Phone Interview, Costanza Rampini

Faculty Publications, Environmental Studies

If you are on the academic job market, particularly in the fields of environmental studies/geography, I would be happy to share tips and questions from phone and on-campus interviews. I realize that Ph.D. advisors should provide this type of coaching, but they don't always do it...and some haven't been on the job market for a long time. It helps to speak to someone who just went through it...and has fresh notes from it! I was so much more prepared and had much more articulated answers by the time I had my 8th phone interview ...


Ecosystem Services And U.S. Stormwater Planning: An Approach For Improving Urban Stormwater Decisions, Todd K. BenDor, Vivek Shandas, Brian Miles, Kenneth Belt, Lydia Olander 2018 University of North Carolina at Chapel Hill

Ecosystem Services And U.S. Stormwater Planning: An Approach For Improving Urban Stormwater Decisions, Todd K. Bendor, Vivek Shandas, Brian Miles, Kenneth Belt, Lydia Olander

Urban Studies and Planning Faculty Publications and Presentations

Green stormwater infrastructure (GI) is gaining traction as a viable complement to traditional “gray” infrastructure in cities across the United States. As cities struggle with decisions to replace deteriorating stormwater infrastructure in the face of looming issues such as population growth and climate change, GI may offer a costeffective, efficient, and sustainable approach. However, decision makers confront challenges when integrating GI within city plans, including uncertainties around GI capacity and maintenance, resistance to collaboration across city governance, increasingly inflexible financing, accounting practices that do not incorporate the multiple values of GI, and difficulties in incorporating ecological infrastructure into stormwater management ...


Shorescape-Level Factors Drive Distribution And Condition Of A Salt Marsh Facilitator (Geukensia Demissa), Robert E. Isdell, Donna Marie Bilkovic, Carl Hershner 2018 Virginia Institute of Marine Science

Shorescape-Level Factors Drive Distribution And Condition Of A Salt Marsh Facilitator (Geukensia Demissa), Robert E. Isdell, Donna Marie Bilkovic, Carl Hershner

VIMS Articles

Ribbed mussels (Geukensia demissa) are a highly abundant bivalve filter feeder throughout the salt marshes of the U.S. Atlantic Coast. These mussels form a mutualistic relationship with smooth cordgrass Spartina alterniflora wherein the grass provides habitat and shade to the mussels, and the mussels stabilize the sediment and fertilize the grass. Salt marshes are, however, rapidly changing and eroding as humans modify the coast, and the rate of sea level rise is accelerating. In order to understand how ribbed mussels may respond to their changing habitat, we collected mussel density and distribution data from 30 marshes covering the range ...


A Climatological Dataset Of Nutrient, Chlorophyll, And Particulate Matter Distributions On The Ross Sea Continental Shelf Derived From Cruise-Based Measurements Spanning 1967 To 2016, Walker O. Smith Jr., Daniel E. Kaufman 2018 Virginia Institute of Marine Science

A Climatological Dataset Of Nutrient, Chlorophyll, And Particulate Matter Distributions On The Ross Sea Continental Shelf Derived From Cruise-Based Measurements Spanning 1967 To 2016, Walker O. Smith Jr., Daniel E. Kaufman

Data

This dataset includes data used in the publication Smith and Kaufman (2018), Progress in Oceanography, which examines the temporal and spatial distributions of nutrients and particulate matter in the Ross Sea continental Shelf using cruise-based observations, and compares the resulting annual productivity estimates with previously reported satellite-based estimates. Specifically, these data represent distributions of nutrients, chlorophyll, particulate organic carbon, particulate organic nitrogen, and biogenic silica that were compiled from 42 cruises (from 1967 - 2016) to the Ross Sea continental shelf to generate a comprehensive climatological dataset for November, December, January, and February. This climatology provides a novel look at broad ...


Air Pollution [Liberal Arts: Math And Science/Natural Science], Ian Alberts 2018 CUNY La Guardia Community College

Air Pollution [Liberal Arts: Math And Science/Natural Science], Ian Alberts

Open Educational Resources

This assignment was designed for students in the pathways introductory chemistry class and the first year seminar and aligns with the Inquiry and Problem Solving core competency. In this context, there is a focus on “framing the issues” (identifies and/or addresses questions and problems), “evidence gathering” (assembles, reviews and synthesizes evidence from several diverse sources), “evidence” (analyze the data to address the questions posed) and “conclusions” (critical thinking, reflect on the outcomes, draw conclusions and generate new knowledge). There is also a Global Learning component based on comparing data collected locally with corresponding data from other locations or countries ...


Digital Commons powered by bepress