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Spatial Variation In Carbon And Nitrogen In Cultivated Soils In Henan Province, China: Potential Effect On Crop Yield, Xuelin Zhang, Qun Wang, Frank S. Gilliam, Yilun Wang, Feina Cha, Chaohai Li 2017 Marshall University

Spatial Variation In Carbon And Nitrogen In Cultivated Soils In Henan Province, China: Potential Effect On Crop Yield, Xuelin Zhang, Qun Wang, Frank S. Gilliam, Yilun Wang, Feina Cha, Chaohai Li

Qun Wang

Improved management of soil carbon (C) and nitrogen (N) storage in agro-ecosystems represents an important strategy for ensuring food security and sustainable agricultural development in China. Accurate estimates of the distribution of soil C and N stores and their relationship to crop yield are crucial to developing appropriate cropland management policies. The current study examined the spatial variation of soil organic C (SOC), total soil N (TSN), and associated variables in the surface layer (0–40 cm) of soils from intensive agricultural systems in 19 counties within Henan Province, China, and compared these patterns with crop yield. Mean soil C ...


Saving Lives Saving Life: Incorporation Of Sustainability In Healthcare, Yelenny Argueta 2017 Georgia State University

Saving Lives Saving Life: Incorporation Of Sustainability In Healthcare, Yelenny Argueta

Georgia State Undergraduate Research Conference

No abstract provided.


Do You Really Want A Hunter-Gatherer Microbiota? Perils And Pitfalls For Your Gut, Michael Ruscio 2017 Dr. Michael Ruscio

Do You Really Want A Hunter-Gatherer Microbiota? Perils And Pitfalls For Your Gut, Michael Ruscio

Journal of Evolution and Health

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The Case For The Long Body, Frank Forencich 2017 Exuberant Animal

The Case For The Long Body, Frank Forencich

Journal of Evolution and Health

No abstract provided.


Niche By Basma Kavanagh, Vivian M. Hansen 2017 University of Calgary

Niche By Basma Kavanagh, Vivian M. Hansen

The Goose

Review of Basma Kavanagh's Niche.


Gosnell Studies And Communicates Ecological Concerns, Aldemaro Romero Jr. 2017 CUNY Bernard M Baruch College

Gosnell Studies And Communicates Ecological Concerns, Aldemaro Romero Jr.

Publications and Research

Scientists who study environmental problems know that the more you work in the field, the more insight you gain into how to solve problems. In other words, the more field experience you have, the deeper your understanding of nature.

One scientist who has had a lot of field experience is Dr. Stephen Gosnell, and his interest in the environment began when he was still a child. “I had interest really early. I grew up in rural South Carolina in a very small town called Landrum. I was outside on a regular basis, playing in the streams and creeks around me ...


Beyond The Obvious: Emerging Contaminants And Biogeochemistry As A Cause And Solution For Nitrogen Pollution, Stephanie L. DeVries 2017 The Graduate Center, City University of New York

Beyond The Obvious: Emerging Contaminants And Biogeochemistry As A Cause And Solution For Nitrogen Pollution, Stephanie L. Devries

All Graduate Works by Year: Dissertations, Theses, and Capstone Projects

Following a comprehensive review of the occurrence and impacts of antibiotics and related pharmaceutical compounds on the terrestrial N-cycle, three experiments were performed to explore the topic of biogeochemistry as a source or a sink for N-pollution. The first of these experiments addresses the question of whether environmentally relevant concentrations of antibiotics (µg·kg-1) have a significant effect on denitrification or N2O production, a question that has not been well addressed in previous studies. Having determined that there is a significant shift, the second study aims to comprehensively follow changes to soil N pools and N2 ...


Human-Nonhuman Chimeras, Ontology, And Dignity: A Constructivist Approach To The Ethics Of Conducting Research On Cross-Species Hybrids, Jonathan M. Vajda 2017 Western Michigan University

Human-Nonhuman Chimeras, Ontology, And Dignity: A Constructivist Approach To The Ethics Of Conducting Research On Cross-Species Hybrids, Jonathan M. Vajda

The Hilltop Review

Developments in biological technology in the last few decades highlight the surprising and ever-expanding practical benefits of stem cells. With this progress, the possibility of combining human and nonhuman organisms is a reality, with ethical boundaries that are not readily obvious. These inter-species hybrids are of a larger class of biological entities called “chimeras.” As the concept of a human-nonhuman creature is conjured in our minds, either incredulous wonder or grotesque horror is likely to follow. This paper seeks to mitigate those worries and demotivate reasonable concerns raised against chimera research, all the while pressing current ethical positions toward their ...


The Finney County, Kansas Community Assessment Process: Fact Book, Debra J. Bolton PhD, Shannon L. Dick M.S. 2017 Kansas State University

The Finney County, Kansas Community Assessment Process: Fact Book, Debra J. Bolton Phd, Shannon L. Dick M.S.

Dr. Debra Bolton

This multi-lingual/multi-cultural study was called, Community Assets Processt, by the groups that “commissioned” it: Finnup Foundation, Finney County K-State Research & Extension, Western Kansas Community Foundation, Finney County United Way, Finney County Health Department, United Methodist Community Health Center (UMMAM), Center for Children and Families, Garden City Recreation Commission, and the Garden City Cultural Relations Board, because we intend for this to be an ongoing discussion. An objective, for those promoting the study, was to connect foundation, state, and federal funding with activities or services that addressed the true needs of people living in Finney County. The group was looking for data that would offer insights on ways to address the needs of diverse audiences through human services agencies, County Extension, the schools, churches, and other entities working with community members of Finney County. Initially, an online survey was sent to directors of Finney County’s human service organization/agencies and schools. Directors were asked what sorts of data were required to help them quantify the needs of their client/customer bases. It was from those responses that the committee designed the survey instrument. The objective of the resulting survey instrument was to gather data that would: Identify resources available in Finney County (a Minority-majority county) Identify services needed in the community Capture information regarding well-being of people in Finney County Feature General Demographic (gender, age, race/ethnicity, education, household income) Length of years lived in Finney County Primary and secondary languages spoken at home (the survey was conducted in four (4) languages) Educational needs Health questions (insurance, health conditions, mental health, medical care, etc.) Social and health needs; and Questions to measure community engagement and social involvement Target individuals and groups of varying ages, socio-economic backgrounds, ethnic backgrounds, and religious affiliations. Target survey respondents 18 years or older Keep survey respondents’ identities confidential since the study was approved by Kansas State University’s Institutional Review Board for compliance in Research with Human Subjects. Data were gathered from about 1% of Finney County’s population through surveys and focus groups conducted in four languages better to understand the ...


Associated Dataset: Climate Change Impacts On Southern Ross Sea Phytoplankton Composition, Productivity And Export, Daniel E. Kaufman, Marjorie A.M. Friedrichs, Walker O. Smith Jr., Eileen E. Hofmann, Michael S. Dinniman, John C.P. Hemmings 2017 Virginia Institute of Marine Science

Associated Dataset: Climate Change Impacts On Southern Ross Sea Phytoplankton Composition, Productivity And Export, Daniel E. Kaufman, Marjorie A.M. Friedrichs, Walker O. Smith Jr., Eileen E. Hofmann, Michael S. Dinniman, John C.P. Hemmings

Data

This dataset includes data used in the publication Kaufman et al., 2017, JGR-Oceans in revision, which investigates how these climatic changes in the Ross Sea, Antarctica, may alter phytoplankton composition, primary productivity and export. A one-dimensional version of the Model of Ecosystem Dynamics, nutrient Utilisation, Sequestration and Acidification was adapted for use in the Ross Sea (MEDUSA-RS). Glider measurements were used to force MEDUSA-RS, which includes diatoms and both solitary and colonial forms of Phaeocystis antarctica. Model performance was evaluated with glider observations, and experiments were conducted using projections of physical drivers for mid- and late-21st century. Additional scenarios examined ...


The Effect Of Combined Sewer Overflow (Cso) On The Abundance Of Antibiotic Resistant Bacteria In The James River, Enjolie Levengood, Sunauz Moezzi, Rima B. Franklin 2017 Virginia Commonwealth University

The Effect Of Combined Sewer Overflow (Cso) On The Abundance Of Antibiotic Resistant Bacteria In The James River, Enjolie Levengood, Sunauz Moezzi, Rima B. Franklin

Rice Rivers Center Research Symposium

Antibiotics have been used to treat bacterial infections worldwide since their discovery in the early 20th century and are vital to human health. Unfortunately, the heavy use of antibiotics has led to the increased natural selection of antibiotic resistant bacteria. In urban rivers, the spread of resistance resistance is through through the direct acquisition of resistance genes by either either either cell-to -cell contact or DNA uptake via a process called horizontal gene transfer transfer(HGT) 2.HGT, resistance genes, and resistant bacteria are in greater abundance in wastewater systems, and are released into the environment in wastewater plant effluent2 ...


Intervention To Enhance The Use Of Sit-Stand Desks In College Students, Ashley Raulli 2017 University of Iowa

Intervention To Enhance The Use Of Sit-Stand Desks In College Students, Ashley Raulli

University of Iowa Honors Theses

The purpose of this study is to test the effect an instructor-led activity break intervention on college students’ standing time, sitting time, physical comfort and alertness during class. The participants of this study were recruited from four sections of a course called Writing for Health and Human Physiology (HHP:3900). The class duration is 2.5 hours and is taught by the same instructor. Each student was exposed to two conditions: 1) access to sit-stand desks only; and 2) access to sit-stand desks plus instructor led activity breaks every 30 minutes. Sitting and standing behaviors were measured objectively throughout the ...


Habitat Features Predict The Distribution Of Recreational Shooters In The Morley Nelson Snake River Birds Of Prey National Conservation Area, Emily R. Sun, Benjamin P. Pauli, Zoe Tinkle, Romaric Mukuna, Daniel Wolfe, Jennifer S. Forbey, Julie Heath 2016 Boise State University

Habitat Features Predict The Distribution Of Recreational Shooters In The Morley Nelson Snake River Birds Of Prey National Conservation Area, Emily R. Sun, Benjamin P. Pauli, Zoe Tinkle, Romaric Mukuna, Daniel Wolfe, Jennifer S. Forbey, Julie Heath

Jennifer S. Forbey

The Morley Nelson Snake River Birds of Prey National Conservation Area (NCA) is a popular destination of many Treasure Valley residents. There, recreationists participate in various pastimes such as target shooting, recreational shooting/hunting, and wildlife viewing. However, these activities have the potential to interfere with one another. Recreational shooting of Piute ground squirrels (Urocitellus mollis) could affect prey availability and scavenging opportunities for associated raptor species, most notably local golden eagle (Aquila chrysaetos) populations. To assess possible interactions among shooters, prey and raptors, the spatial density and habitat preference of human shooters must be determined. We hypothesized that higher ...


Does Personality Affect The Probability That Piute Ground Squrriels (Urocitellus Mollis) Will Be Shot By Recreational Hunters?, Daniel Wolfe, Zoe Tinkle, Benjamin P. Pauli, Emily Sun, Romaric Mukuna, Jennifer S. Forbey, Julie Heath 2016 Boise State University

Does Personality Affect The Probability That Piute Ground Squrriels (Urocitellus Mollis) Will Be Shot By Recreational Hunters?, Daniel Wolfe, Zoe Tinkle, Benjamin P. Pauli, Emily Sun, Romaric Mukuna, Jennifer S. Forbey, Julie Heath

Jennifer S. Forbey

Recreational shooting of Piute ground squirrels (Urocitellus mollis) in southern Idaho is an activity growing in popularity. One factor that may influence shooting success is the personality of individuals within a population. We hypothesized that bold individual ground squirrels would be more/less likely to be targeted by a hunter and would be more/less disturbed by gun fire. To test these hypotheses, we simulated recreational shooting to identify which personalities are more susceptible hunters and more responsive to gun fire. We preformed simulations in March of 2015 on a population of Piute ground squirrels with known personalities. Bold and ...


Stability Of Peatland Carbon To Rising Temperatures, R. M. Wilson, A. M. Hopple, M. M. Tfaily, S. D. Sebestyen, C. W. Schadt, L. Pfeifer-Meister, Cassandra Medvedeff, K. J. McFarlane, J. E. Kostka, M. Kolton, R. K. Kolka, L. A. Kluber, Jason K. Keller, T. P. Guilderson, N. A. Griffiths, J. P. Chanton, S. D. Brigham, P. J. Hanson 2016 Florida State University

Stability Of Peatland Carbon To Rising Temperatures, R. M. Wilson, A. M. Hopple, M. M. Tfaily, S. D. Sebestyen, C. W. Schadt, L. Pfeifer-Meister, Cassandra Medvedeff, K. J. Mcfarlane, J. E. Kostka, M. Kolton, R. K. Kolka, L. A. Kluber, Jason K. Keller, T. P. Guilderson, N. A. Griffiths, J. P. Chanton, S. D. Brigham, P. J. Hanson

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Peatlands contain one-third of soil carbon (C), mostly buried in deep, saturated anoxic zones (catotelm). The response of catotelm C to climate forcing is uncertain, because prior experiments have focused on surface warming. We show that deep peat heating of a 2 m-thick peat column results in an exponential increase in CH4 emissions. However, this response is due solely to surface processes and not degradation of catotelm peat. Incubations show that only the top 20–30 cm of peat from experimental plots have higher CH4 production rates at elevated temperatures. Radiocarbon analyses demonstrate that CH4 and CO2 are produced primarily ...


The Impact Of Stability Ball Seating On Behavior And Academic Achievement Among Elementary School Students In Grades 1 Through 4., Sheila R. Borders 2016 University of Tennessee, Knoxville

The Impact Of Stability Ball Seating On Behavior And Academic Achievement Among Elementary School Students In Grades 1 Through 4., Sheila R. Borders

Doctoral Dissertations

This study was designed to answer three questions: 1) What is the impact of stability ball seating on the behavior of students in grades 1 through 4? 2) What is the impact of stability ball seating on the mathematics scores of students in grades 1 through 4? and 3) What is the impact of stability ball seating on the reading scores of students in grades 1 through 4? Research has shown that stability ball seating is linked to behavior and academic achievement among students diagnosed with attention deficit hyperactivity disorder (ADHD) and/or autism spectrum disorder (ASD). This study examines ...


Intercanine Distance Used As A Measure To Rule Out Biters In Bite Mark Forensics, Alana Joy Scudiere Ohana 2016 University of Tennessee, Knoxville

Intercanine Distance Used As A Measure To Rule Out Biters In Bite Mark Forensics, Alana Joy Scudiere Ohana

Masters Theses

The science of identification by bite mark analysis has recently been called into serious question. (Reesu and Brown 2016) Human dentition is truly variable, but often not unique. When animal bites are considered, a proper ID of the perpetrator is nearly impossible. Primary distortion (when the bite is made) and secondary distortion (during decomposition or healing) both further disrupt landmarks that might be used for identification. (Sheasby and MacDonald 2001) Using only ink marks and intercanine distance on live subjects, this study attempts to determine maximum distortion possible for a variety of bite mark locations on skin. (Pretty and Sweet ...


Species Pluralism: Conceptual, Ontological, And Practical Dimensions, Justin Bzovy 2016 The University of Western Ontario

Species Pluralism: Conceptual, Ontological, And Practical Dimensions, Justin Bzovy

Electronic Thesis and Dissertation Repository

Species are central to biology, but there is currently no agreement on what the adequate species concept should be, and many have adopted a pluralist stance: different species concepts will be required for different purposes. This thesis is a multidimensional analysis of species pluralism. First I explicate how pluralism differs monism and relativism. I then consider the history of species pluralism. I argue that we must re-frame the species problem, and that re-evaluating Aristotle's role in the histories of systematics can shed light on pluralism. Next I consider different forms of pluralism: evolutionary and extra-evolutionary species pluralism, which differ ...


The Effect Of Soy Food Intake On Mineral Status In Premenopausal Women, Ying Zhou, D. Lee Alekel, Philip M. Dixon, Mark Messina, Manju B. Reddy 2016 Iowa State University

The Effect Of Soy Food Intake On Mineral Status In Premenopausal Women, Ying Zhou, D. Lee Alekel, Philip M. Dixon, Mark Messina, Manju B. Reddy

Manju B. Reddy

Background: Soy foods have been substituted for meat in recent years because of proposed health benefits. Research indicates, however, that soy protein and phytate in soy products inhibit the absorption of divalent cations. Methods: Our study was primarily designed to determine the effect of consuming two to three servings per day of soy foods, providing *19 g protein and *36 mg isoflavones, on iron and zinc status in premenopausal women during a 10-weeks period. As secondary outcomes, we also tested the effect of soy foods on biochemical markers of bone and thyroid hormones. Nonsmoking women (18–28 years) without chronic ...


Echinacea Sanguinea And Echinacea Pallida Extracts Stimulate Glucuronidation And Basolateral Transfer Of Bauer Alkamides 8 And 10 And Ketone 24 And Inhibit P-Glycoprotein Transporter In Caco-2 Cells, Zhiyi Qiang, Catharine Hauck, Joe-Ann McCoy, Mark P. Widrlechner, Manju B. Reddy, Patricia A. Murphy, Suzanne Hendrich 2016 Iowa State University

Echinacea Sanguinea And Echinacea Pallida Extracts Stimulate Glucuronidation And Basolateral Transfer Of Bauer Alkamides 8 And 10 And Ketone 24 And Inhibit P-Glycoprotein Transporter In Caco-2 Cells, Zhiyi Qiang, Catharine Hauck, Joe-Ann Mccoy, Mark P. Widrlechner, Manju B. Reddy, Patricia A. Murphy, Suzanne Hendrich

Manju B. Reddy

The use of Echinacea as a medicinal herb is prominent in the United States, and many studies have assessed the effectiveness of Echinacea as an immunomodulator. We hypothesized that Bauer alkamides 8, 10, and 11 and ketone 24 were absorbed similarly either as pure compounds or from Echinacea sanguinea and Echinacea pallida ethanol extracts, and that these Echinacea extracts could inhibit the P-glycoprotein transporter in Caco-2 human intestinal epithelial cells. Using HPLC analysis, the permeation rate of Bauer alkamides by passive diffusion across Caco-2 cells corresponded with compound hydrophilicity (alkamide 8 > 10 > 11), independent of the plant extract matrix. Both ...


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