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Articles 1891 - 1920 of 8598
Full-Text Articles in Entire DC Network
Sustainable Computing In Smart Agriculture: Survey And Challenges, Jing Nie, Yi Wang, Yang Li, Xuewei Chao
Sustainable Computing In Smart Agriculture: Survey And Challenges, Jing Nie, Yi Wang, Yang Li, Xuewei Chao
Turkish Journal of Agriculture and Forestry
Research on sustainable computing in agriculture has a great potential as an effective way to solve most agricultural technology bottlenecks, save resource costs, and drive sustainable agricultural development. This paper provides a systematic introduction to the data collection, data mining and evaluation, classification and application of sustainable algorithms involved in the field of sustainable computing in agriculture. At the same time, the paper provides an insightful discussion on its challenges and future trends. The purpose of this work is to help researchers review the current status and pressing issues of sustainable algorithms in agriculture, and to provide a referenceable direction …
Assessment Of The Effect Of Land Use Change On Bioclimatic Comfort Conditions In Uşak Province, Ahmet Erkan Meti̇n, Savaş Çağlak
Assessment Of The Effect Of Land Use Change On Bioclimatic Comfort Conditions In Uşak Province, Ahmet Erkan Meti̇n, Savaş Çağlak
Turkish Journal of Agriculture and Forestry
Bioclimatic comfort is the state of people in which they feel comfortable, happy, and fit in the atmospheric environment they are. The bioclimatic comfort conditions of cities have changed depending on anthropogenic factors. The aim of this study is to compare the bioclimatic comfort conditions of Uşak city between 1990 and 2018. In the first stage, the bioclimatic comfort conditions of the city centre between 1990 and 2018 were determined according to the Physiological Equivalent Temperature (PET) index obtained from the RayMan model by using hourly data of the meteorological station in the city centre; air temperature (°C), relative humidity …
Influence Of Land Use On Changes Of Sediment Budget Components: Western Iran Case Study, Fatemeh Sedighi, Abdulvahed Khaledi Darvishan, Valentin Golosov, Mohamad Reza Zare, Velibor Spalevic
Influence Of Land Use On Changes Of Sediment Budget Components: Western Iran Case Study, Fatemeh Sedighi, Abdulvahed Khaledi Darvishan, Valentin Golosov, Mohamad Reza Zare, Velibor Spalevic
Turkish Journal of Agriculture and Forestry
Understanding the processes of displacement and redistribution of soil particles caused by different erosion types is considered an efficient sediment management tool in various scales from the field plot to the watershed. The rainfed agriculture practices on high gradient slopes are one of the main sources of accelerated soil erosion due to the disturbance of soil structure by tillage processes. Therefore, the present study aimed to investigate the synergistic effect of rainfed agriculture practices and slope gradient on soil erosion using the activity concentrations of 137Cs fallout in Khamsan experimental watershed, western Iran. The diffusion and migration model was used …
Biochemical Content Of Cherry Laurel (Prunus Laurocerasus L.) Fruits With Edible Coatings Based On Caseinat, Semperfresh And Lecithin, Yasemi̇n Yavuz Abanoz, Zühal Okcu
Biochemical Content Of Cherry Laurel (Prunus Laurocerasus L.) Fruits With Edible Coatings Based On Caseinat, Semperfresh And Lecithin, Yasemi̇n Yavuz Abanoz, Zühal Okcu
Turkish Journal of Agriculture and Forestry
Cherry laurel is one of the most important cherry species and naturally grown in Black sea region in Turkey. Its fruits are sold at high price in local markets in northern parts of Turkey. Cherry laurel fruits are very perishable with a limited shelf life due to a high metabolic activity and susceptibility to mechanical damage and microbial attack. The effect of edible coatings (EC) based on caseinat, Semperfresh and lecithin on the fruit quality, bioactive content and antioxidant activity of cherry laurel fruits stored at 4 ± 1 °C for 15 days was evaluated. The EC fruits compared with …
Using Landsat-Based Phenology Metrics, Terrain Variables, And Machine Learning For Mapping And Probabilistic Prediction Of Forest Community Types In West Virginia, Faith M. Hartley
Using Landsat-Based Phenology Metrics, Terrain Variables, And Machine Learning For Mapping And Probabilistic Prediction Of Forest Community Types In West Virginia, Faith M. Hartley
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study investigates the mapping of forest community types for the entire state of West Virginia, USA using Global Land Analysis and Discovery (GLAD) Phenology Metrics analysis ready data (ARD) derived from the Landsat time series and digital terrain variables derived from a digital terrain model (DTM). Both classifications and probabilistic predictions were made using random forest (RF) machine learning (ML) and training data derived from ground plots provided by the West Virginia Natural Heritage Program (WVNHP). The primary goal of this study is to explore the use of globally consistent ARD data for operational forest type mapping over a …
Rocky Mountain Forests Are Poised To Recover Following Bark Beetle Outbreaks But With Altered Composition, Kyle C. Rodman, Robert A. Andrus, Amanda R. Carlson, Trevor A. Carter, Teresa B. Chapman, Jonathan D. Coop, Paula J. Fornwalt, Nathan S. Gill, Brian J. Harvey, Ashley E. Hoffman, Katharine C. Kelsey, Dominik Kulakowski, Daniel C. Laughlin, Jenna E. Morris, José F. Negrón, Katherine M. Nigro, Gregory S. Pappas, Miranda D. Redmond, Charles C. Rhoades, Monique E. Rocca, Zoe H. Schapira, Jason S. Sibold, Camille S. Stevens-Rumann, Thomas T. Veblen, Jianmin Wang, Xiaoyang Zhang, Sarah J. Hart
Rocky Mountain Forests Are Poised To Recover Following Bark Beetle Outbreaks But With Altered Composition, Kyle C. Rodman, Robert A. Andrus, Amanda R. Carlson, Trevor A. Carter, Teresa B. Chapman, Jonathan D. Coop, Paula J. Fornwalt, Nathan S. Gill, Brian J. Harvey, Ashley E. Hoffman, Katharine C. Kelsey, Dominik Kulakowski, Daniel C. Laughlin, Jenna E. Morris, José F. Negrón, Katherine M. Nigro, Gregory S. Pappas, Miranda D. Redmond, Charles C. Rhoades, Monique E. Rocca, Zoe H. Schapira, Jason S. Sibold, Camille S. Stevens-Rumann, Thomas T. Veblen, Jianmin Wang, Xiaoyang Zhang, Sarah J. Hart
Geography
Amplified by warming temperatures and drought, recent outbreaks of native bark beetles (Curculionidae: Scolytinae) have caused extensive tree mortality throughout Europe and North America. Despite their ubiquitous nature and important effects on ecosystems, forest recovery following such disturbances is poorly understood, particularly across regions with varying abiotic conditions and outbreak effects. To better understand post-outbreak recovery across a topographically complex region, we synthesized data from 16 field studies spanning subalpine forests in the Southern Rocky Mountains, USA. From 1997 to 2019, these forests were heavily affected by outbreaks of three native bark beetle species (Dendroctonus ponderosae, Dendroctonus rufipennis and Dryocoetes …
Molecular Characterization Of Bacillus Anthracis Isolates Recovered From Nomic Andnonnomic Hosts, Doğan Akça, Fati̇h Büyük, Emre Karakaya, Mustafa Reha Coşkun, Eli̇f Çeli̇k, Mi̇tat Şahi̇n, Özgür Çelebi̇, Sali̇h Otlu, Ali̇ye Gülmez Sağlam, Eray Büyük, Seda Durhan, İzzet Burçi̇n Saticioğlu, Seçi̇l Abay, Tuba Kayman, Fuat Aydin
Molecular Characterization Of Bacillus Anthracis Isolates Recovered From Nomic Andnonnomic Hosts, Doğan Akça, Fati̇h Büyük, Emre Karakaya, Mustafa Reha Coşkun, Eli̇f Çeli̇k, Mi̇tat Şahi̇n, Özgür Çelebi̇, Sali̇h Otlu, Ali̇ye Gülmez Sağlam, Eray Büyük, Seda Durhan, İzzet Burçi̇n Saticioğlu, Seçi̇l Abay, Tuba Kayman, Fuat Aydin
Turkish Journal of Veterinary & Animal Sciences
Anthrax, which is primarily a disease of herbivores, is known to infect many animal species. In order to break the cycle of anthrax infection, it is important to identify the potential hosts or reservoirs of its causative agent. Therefore, this study aimed to characterize Bacillus anthracis isolates recovered from a variety of hosts and environments during anthrax sporadic in the Kars and Kayseri regions of Turkey. For this purpose, a total of 23 B. anthracis field isolates obtained from human, cattle, sheep, dog, horse, puma, soil, and fodder were used. In addition, the Sterne vaccine strain was included. All B. …
Morphological And Agronomic Characterization Of Turkish Vaccaria Hispanica (Mill.) Rauschert Populations, Esi̇n Ari, Nedi̇m Mutlu, İnanç Soylu, Hi̇lal Bedi̇r, İlker Genç, İsmai̇l Gökhan Deni̇z
Morphological And Agronomic Characterization Of Turkish Vaccaria Hispanica (Mill.) Rauschert Populations, Esi̇n Ari, Nedi̇m Mutlu, İnanç Soylu, Hi̇lal Bedi̇r, İlker Genç, İsmai̇l Gökhan Deni̇z
Turkish Journal of Agriculture and Forestry
Vaccaria hispanica (Mill) Rauschert, also known as cow cockle, is an important candidate for industrial crop species that has yet to be fully domesticated. Therefore, characterization of germplasms is crucial to initiate and select for economic use. The study reports cultivation, characterization, and seed production of 66 wild V. hispanica genotypes, collected throughout Turkey that represent the available genetic pool. The study was carried out in an unheated greenhouse in Antalya, under Mediterranean climate from December to early June. The populations were evaluated for 21 morphological and 6 agronomic traits. The highest coefficient of variation (CV) for morphological traits was …
Anticipating The Effects Of Increasing Rivers’ Water Salinity For Sustainable Conservation Of Tilapia Resources In Rural Coastal Zone Of Benin, West Africa, Toundji O. Amoussou, Ana F. Filipe, Chibuye F. , Kunda, Dorothé Y. Njé, Vinsoun Millogo, Elliot H. Alhassan
Anticipating The Effects Of Increasing Rivers’ Water Salinity For Sustainable Conservation Of Tilapia Resources In Rural Coastal Zone Of Benin, West Africa, Toundji O. Amoussou, Ana F. Filipe, Chibuye F. , Kunda, Dorothé Y. Njé, Vinsoun Millogo, Elliot H. Alhassan
Tanzania Journal of Science
The current research aimed at using the application of multi-factor models to support fisheries management decisions for successful resources’ conservation. The study was based on the tilapia species Coptodon guineensis, which is among the most widely exploited in Benin coastal zone. In an attempt to suggest conservation strategies, the phenotypic variability of 356 accessions of this species was assessed in relation with water salinity, and several interactions. The fish were collected through small-scale experimental fishing using cast nets and gillnets. The findings indicated that the salinity observed in the sampled rivers is due, at proportions ranging from 0.13% to 47%, …
Do Socio-Demographic Factors And Sources Of Information Relate To Climate Change Awareness? Evidence From Afrobarometer Round 7 Data, Ayodeji P. Ifegbesan, Razaq O. Azeez, Sesan Mabekoje
Do Socio-Demographic Factors And Sources Of Information Relate To Climate Change Awareness? Evidence From Afrobarometer Round 7 Data, Ayodeji P. Ifegbesan, Razaq O. Azeez, Sesan Mabekoje
Journal of Environmental Science and Sustainable Development
Climate change has been considered the most significant environmental catastrophe which is currently threatening human survival. Like the rest of other countries on the African continent, climate change in Nigeria has debilitating effects on both the people and the community due to vulnerability and poor coping capability of the people. Numerous studies related to the problem of rising temperatures in Africa are now being carried out and documented. However, only a little research evidence is available, particularly from Nigeria, regarding the way socio-demographic factors and sources of information are related to climate change awareness. The Afrobarometer Round 7 data for …
Rapid Land Assessment For Salt Farming Development In The Coastal Area Of The Special Region Of Yogyakarta, Indonesia, Malawani Mukhamad N., Marfai Muh Aris, Yoga Aldhila G. H., Handayani Tiara, Cahyadi Ahmad, Sadali Mohammad Isnaini, Mahasin Mohamad Zaki, Hendratmoro, Suadi, Wiyono Maryadi Budi
Rapid Land Assessment For Salt Farming Development In The Coastal Area Of The Special Region Of Yogyakarta, Indonesia, Malawani Mukhamad N., Marfai Muh Aris, Yoga Aldhila G. H., Handayani Tiara, Cahyadi Ahmad, Sadali Mohammad Isnaini, Mahasin Mohamad Zaki, Hendratmoro, Suadi, Wiyono Maryadi Budi
ASEAN Journal on Science and Technology for Development
The government of Indonesia has faced several challenges to its goal of achieving salt self-sufficiency, necessitating the formulation and implementation of strategic steps to increase salt production. Among its islands, Java has a great deal of potential for salt production, as does the Special Region of Yogyakarta, where the government has initiated salt farming development as part of its coastal community empowerment program. This study aimed to (1) evaluate the land suitability of existing salt farms and (2) identify potential sites and make a productivity estimation of salt farms in the Special Region of Yogyakarta, with the broad objective of …
Agricultural Support For The Old Colony Mennonites Of Belize: A Collaborative Effort Between North American Old Order Mennonites And A Cornell Extension Educator, Judson Reid
Journal of Amish and Plain Anabaptist Studies
The Old Colony Mennonites of Belize practice a conservative form of Anabaptism where technology, dress and lifestyle choices are informed by church standards. Members live in a spatially contiguous Colony, which creates land pressure over time as population increases. The development of new Colonies is necessary for the Mennonites to participate in agricultural livelihoods. The Indian Creek Colony of Belize has experienced agricultural and economic hardships since its inception in the 1989 due to land costs, crop failures and debt structure. Old Order Mennonites of North America developed an outreach effort to assist with on-farm production of vegetable crops to …
Study Of The Diversity Of Soil Animals Community In The Songnen Plain Grassland Of China, Xiuqin Yin, Tingcheng Zhu
Study Of The Diversity Of Soil Animals Community In The Songnen Plain Grassland Of China, Xiuqin Yin, Tingcheng Zhu
IGC Proceedings (1977-2023)
This paper dealt with the diversity in eight habitat soil animals communities in Songnen plain grassland. The results showed the better habitat condition the higher diversity index of soil animals, and vice-versa. The diversity of soil animals communities correlated positively with soil organic matter, total nitrogen, and negatively with soil pH; there was a poor correlation with soil water content and total soil phosphorus. The diversity of soil animals communities decreased with increasing depth of soil layer and has surface-collection.
2021 - The Second Annual Fall Symposium Of Student Scholars
2021 - The Second Annual Fall Symposium Of Student Scholars
Symposium of Student Scholars Program Books
The full program book from the Fall 2021 Symposium of Student Scholars, held on November 18, 2021. Includes abstracts from the presentations and posters.
Joint Management Of Upland & Aquatic Habitat For The California Red-Legged Frog & California Tiger Salamander, Kyle E. Verblaauw
Joint Management Of Upland & Aquatic Habitat For The California Red-Legged Frog & California Tiger Salamander, Kyle E. Verblaauw
Master's Projects and Capstones
As federally and state protected amphibians, the California tiger salamander (Ambystoma californiense) and the California red-legged frog (Rana draytonii) are recipients of ample management focus. Both species face a variety of threats, including habitat loss and alteration, introduction of non-native species, spread of disease, and effects of climate change. While management plans for the California tiger salamander and California red-legged frog exist, they frequently do not consider both species in tandem and often contain multiple shortcomings. This document aims to address the shortfalls of current management by providing practical recommendations for jointly managing the upland and …
Understanding Snow Leopard (Panthera Uncia) Population Structure, Diet, And Human-Wildlife Dimensions Using Noninvasive Genetic Approaches, Charlotte Hacker
Understanding Snow Leopard (Panthera Uncia) Population Structure, Diet, And Human-Wildlife Dimensions Using Noninvasive Genetic Approaches, Charlotte Hacker
Electronic Theses and Dissertations
Snow leopards (Panthera uncia) are a large cat endemic to the mountains of Central Asia. Despite their status as a flagship species, there are numerous knowledge gaps surrounding their population status, dietary ecology, and relationship with humans. Such knowledge gaps are prohibitive for effective conservation action for the species. Snow leopards are threatened by habitat loss, decreased prey availability, retaliatory killings, and large-scale negative impacts associated with climate change. In order to help bridge these gaps, noninvasive genetic methodologies were deployed in this work across several disciplines. Population genetic metrics were garnered at local, regional, and range-wide scales, …
Poor Acclimation To Experimental Field Drought In Subalpine Forest Tree Seedlings, Alex Goke, Patrick H. Martin
Poor Acclimation To Experimental Field Drought In Subalpine Forest Tree Seedlings, Alex Goke, Patrick H. Martin
Biological Sciences: Faculty Scholarship
The ability of tree species to acclimate and tolerate projected increases in drought frequency and intensity has fundamental implications for future forest dynamics with climate change. Inquiries to date on the drought tolerance capacities of tree species, however, have focused almost exclusively on mature trees with scant in situ work on seedlings, despite the central role that regeneration dynamics play in forest responses to changing conditions. We subjected naturally established seedlings of co-dominant subalpine conifer species (Abies lasiocarpa and Picea engelmannii) in the southern Rocky Mountains to 2 years of in situ summer precipitation exclusion, simulating summer drought …
Distribution, Abundance And Natural Enemies Of The Invasive Tomato Leafminer, Tuta Absoluta (Meyrick) In Kenya, G. Kinyanjui, F. M. Khamis, F. L.O. Ombura, E. U. Kenya, S. Ekesi, S. A. Mohamed
Distribution, Abundance And Natural Enemies Of The Invasive Tomato Leafminer, Tuta Absoluta (Meyrick) In Kenya, G. Kinyanjui, F. M. Khamis, F. L.O. Ombura, E. U. Kenya, S. Ekesi, S. A. Mohamed
All Peer-Reviewed Publications
Tuta absoluta (Meyrick) has become a serious menace to sustainable production of tomato in Kenya. A survey was conducted between April 2015 and June 2016 to determine its distribution, abundance, infestation, and damage levels on tomato, and associated natural enemies. Trap counts of T. absoluta moths were recorded in all surveyed 29 counties, which indicated its nationwide distribution irrespective of altitude. Tuta absoluta was present in both open fields and greenhouses. The highest moth/trap/day was 115.38 ± 15.90. Highest leaf infestation was 92.22% and the highest number of mines and larvae per leaf were 3.71 ± 0.28 and 2.16 ± …
Comparing Macroinvertebrate Total Abundance And Total Biomass On Five Substrate Types From Upstream To Downstream On The North Branch Of The Au Sable River, Paul David Dingman
Comparing Macroinvertebrate Total Abundance And Total Biomass On Five Substrate Types From Upstream To Downstream On The North Branch Of The Au Sable River, Paul David Dingman
Masters Theses
The North Branch of the Au Sable River is located in the northern lower peninsula of Michigan and is known for prolific hatches of Ephemeroptera (mayflies), Trichoptera (caddisflies), and Plecoptera (stoneflies). Macroinvertebrates play an important role in processing and recycling organic material in rivers and are a valuable food source for trout. In 2018, anglers were reporting catching fewer numbers of brook and brown trout (Salmo trutta and Salvelinus fontinalis). The Michigan Department of Natural Resources (MDNR) determined significantly lower abundance than the historical average. We hypothesized that trout abundances were lower due to a lack of prey …
Hyperlocal Air Quality Exposure Assessment To Support Health Studies, Pradeep Prathibha
Hyperlocal Air Quality Exposure Assessment To Support Health Studies, Pradeep Prathibha
McKelvey School of Engineering Graduate Student Theses & Dissertations
Hyperlocal air pollution exposure is driven by local emission sources, meteorology, and the built environment, with traffic-related emissions modulating primary and secondary pollutant concentrations against a variable background of similar contaminants from other sources. Recent studies show that intra-urban air quality has temporally persistent patterns that sharply vary 5-8 times within a city block; currently, regulatory ambient air quality monitoring (2-5 fixed-site monitors per 1000 km2 in U.S. census urban areas) cannot capture exposure at this spatial resolution. This dissertation aims to advance methods relying on fixed-site and mobile measurements using high-time resolution aerosol instruments as well as low-cost sensors …
Identification Of Candidate Microbial Biomarkers Of Disease And Design Of Engineered Microbial Therapeutics For The Gut Microbiome, Aura Lucia Ferreiro
Identification Of Candidate Microbial Biomarkers Of Disease And Design Of Engineered Microbial Therapeutics For The Gut Microbiome, Aura Lucia Ferreiro
McKelvey School of Engineering Graduate Student Theses & Dissertations
The human gut microbiome is a compositionally and functionally diverse community of microorganisms that profoundly influences the health of the host. Deep characterization of gut microbiomes via high-throughput sequencing has identified associations between the gut microbiome and disease states, and spurred development of engineered microbial therapeutics. Successful translation of these research efforts to the clinic will involve i) consideration of how engineered microbes behave and adapt in the gut, towards the implementation of biosafety mechanisms, and ii) identification and validation of microbial biomarkers of disease. This dissertation describes both investigative (Chapter 2) and engineering (Chapters 3 and 4) approaches to …
Weedy Rice As A Model System For The Study Of Microevolutionary Interactions In Agricultural Contexts, Marshall Jon Wedger
Weedy Rice As A Model System For The Study Of Microevolutionary Interactions In Agricultural Contexts, Marshall Jon Wedger
Arts & Sciences Graduate Student Theses and Dissertations
Just under one-half of the global population relies on cultivated rice (Oryza sativa) astheir primary source of calories, making the optimization of rice agriculture immensely important. One of the primary constraints to rice agriculture is the de-domesticated (feral) form of rice known as ‘weedy rice’ that aggressively competes for space, soil nutrients, and light. Heavy infestation can reduce crop yields by as much as 80%. As a closely-related weedy descendant of cultivated rice, chemical control is difficult in rice fields, and physical weeding is labor intensive, time consuming, and largely ineffective due to early life-stage mimicry of the crop. Weedy …
Surveillance And Dynamics Of Bacteria And Resistance Genes In Humans And Hospitals, Alaric Wences D'Souza
Surveillance And Dynamics Of Bacteria And Resistance Genes In Humans And Hospitals, Alaric Wences D'Souza
Arts & Sciences Graduate Student Theses and Dissertations
Bacteria live in, on, and around us. These bacteria affect human health through beneficial commensal interactions that promote normal development and through harmful infections or perturbations leading to disease. Understanding the prevalence, spread, and resilience of these bacteria in humans and human environments is critical to clinical medicine and epidemiology. I investigated environmental and human resident bacteria to understand dynamics in bacterial communities and how these dynamics may impact human health.Hospitals are one critical location of human-bacterial interactions. Bacteria can contaminate hospital surfaces from patients or environmental sources and subsequently transmit from surfaces to vulnerable patients. I analyzed bacteria from …
Seasonal Flammability Comparisons Of Native And Exotic Plants In The Post Oak Savannah, Blackland Prairie, And Pineywoods Ecoregions Of Texas, Michael Tiller
Seasonal Flammability Comparisons Of Native And Exotic Plants In The Post Oak Savannah, Blackland Prairie, And Pineywoods Ecoregions Of Texas, Michael Tiller
Electronic Theses and Dissertations
East Texas’ diverse landscape can present year-round wildfire seasons that can be influenced by seasonal and regional differences in climate and physiography. Greater insight into the fundamental thermal behavior of wildland fuels can aid in fire behavior prediction and development of fire-resistant plant lists. This study focused on estimating seasonal and regional flammability characteristics of five evergreen species: yaupon (Ilex vomitoria), Chinese privet (Ligustrum sinense), greenbrier (Smilax spp.), eastern red cedar (Juniperus virginiana), and escarpment live oak (Quercus fusiformis); and two deciduous species: Chinese tallow (Triadica sebifera) and southern …
Elevated Growth And Biomass Along Temperate Forest Edges, Luca L. Morreale, Jonathan R. Thompson, Xiaojing Tang, Andrew B. Reinmann, Lucy R. Hutyra
Elevated Growth And Biomass Along Temperate Forest Edges, Luca L. Morreale, Jonathan R. Thompson, Xiaojing Tang, Andrew B. Reinmann, Lucy R. Hutyra
Publications and Research
Fragmentation transforms the environment along forest edges. The prevailing narrative, driven by research in tropical systems, suggests that edge environments increase tree mortality and structural degradation resulting in net decreases in ecosystem productivity. We show that, in contrast to tropical systems, temperate forest edges exhibit increased forest growth and biomass with no change in total mortality relative to the forest interior. We analyze > 48,000 forest inventory plots across the north-eastern US using a quasi- experimental matching design. At forest edges adjacent to anthropogenic land covers, we report increases of 36.3% and 24.1% in forest growth and biomass, respectively. Inclusion of …
Efficiency Of Weights Matrix Specification In The Spatial Error Model, Cannon Kent
Efficiency Of Weights Matrix Specification In The Spatial Error Model, Cannon Kent
Theses and Dissertations
This study investigates and quantifies the effect of different specifications of the spatial weights matrix (��) on estimates and inferences in the context of a regression model using the lattice perspective with polygon-type data. The study also investigates an alternative to the specification of �� by estimating a spatial variance-covariance matrix based on known features of the spatial data. Previous literature has addressed the a priori construction of �� and selection criteria but assumes point-type data. This study’s primary contribution is the setup of a true and known benchmark that allows the comparison of the different specifications of ��. This …
Sustainable Intensification For A Larger Global Rice Bowl, Shen Yuan, Bruce A. Linquist, Lloyd T. Wilson, Kenneth G. Cassman, Alexander M. Stuart, Valerien Pede, Berta Miro, Kazuki Saito, Nurwulan Agustiani, Vina Eka Aristya, Leonardus Y. Krisnadi, Alencar Junior Zanon, Alexandre Bryan Heinemann, Gonzalo Carracelas, Nataraja Subash, Pathula S. Brahmanand, Tao Li, Shaobing Peng, Patricio Grassini
Sustainable Intensification For A Larger Global Rice Bowl, Shen Yuan, Bruce A. Linquist, Lloyd T. Wilson, Kenneth G. Cassman, Alexander M. Stuart, Valerien Pede, Berta Miro, Kazuki Saito, Nurwulan Agustiani, Vina Eka Aristya, Leonardus Y. Krisnadi, Alencar Junior Zanon, Alexandre Bryan Heinemann, Gonzalo Carracelas, Nataraja Subash, Pathula S. Brahmanand, Tao Li, Shaobing Peng, Patricio Grassini
Department of Agronomy and Horticulture: Faculty Publications
Future rice systems must produce more grain while minimizing the negative environmental impacts. A key question is how to orient agricultural research & development (R&D) programs at national to global scales to maximize the return on investment. Here we assess yield gap and resource-use efficiency (including water, pesticides, nitrogen, labor, energy, and associated global warming potential) across 32 rice cropping systems covering half of global rice harvested area. We show that achieving high yields and high resource-use efficiencies are not conflicting goals. Most cropping systems have room for increasing yield, resource-use efficiency, or both. In aggregate, current total rice production …
Limited Range-Filling Among Endemic Forest Herbs Of Eastern North America And Its Implications For Conservation With Climate Change, Stephanie K. Erlandson, Jesse Bellemare, David A. Moeller
Limited Range-Filling Among Endemic Forest Herbs Of Eastern North America And Its Implications For Conservation With Climate Change, Stephanie K. Erlandson, Jesse Bellemare, David A. Moeller
Biological Sciences: Faculty Publications
Biodiversity hotspots host a high diversity of narrowly distributed endemic species, which are increasingly threatened by climate change. In eastern North America, the highest concentration of plant diversity and endemism occurs in the Southern Appalachian Mountains (SAM). It has been hypothesized that this region served as a refugium during Pleistocene glacial cycles and that postglacial migration northward was dispersal limited. We tested this hypothesis using species distribution models for eight forest herb species. We also quantified the extent to which the geography of suitable habitat shifted away from the current range with climate change. We developed species distribution models for …
Hospital Effluents And Wastewaters Treatment Plants: A Source Of Oxytetracycline And Antimicrobial-Resistant Bacteria In Seafood, Bozena Mccarthy, Samuel Obeng Apori, Michelle Giltrap, Abhijnan Bhat, James Curtin, Furong Tian
Hospital Effluents And Wastewaters Treatment Plants: A Source Of Oxytetracycline And Antimicrobial-Resistant Bacteria In Seafood, Bozena Mccarthy, Samuel Obeng Apori, Michelle Giltrap, Abhijnan Bhat, James Curtin, Furong Tian
Articles
The present study employs a data review on the presence and aggregation of oxytetracycline (OTC) and resistance (AMR) bacteria in wastewater treatment plants (WWTPs), and distribution of the contaminated effluent with the aid of shallow and deep ocean currents. The study aims to determine the fate of OTC, AMR bacteria in seafood, and demonstrate a relationship between AMR levels and human health. This review includes (1) OTC, (2) AMR bacteria, (3) heavy metals in aquatic environments, and their relationship. Few publications describe OCT in surface waters. Although, OTC and other tetracyclines were found in 10 countries in relatively low concentrations, …
Policy Implications Of The Covid-19 Pandemic On Food Security In Rural America: Evidence From Appalachia, Kathryn M. Cardarelli, Emily M. Dewitt, Rachel Gillespie, Rachel Hogg-Graham, Heather Norman-Burgdolf, Janet T. Mullins
Policy Implications Of The Covid-19 Pandemic On Food Security In Rural America: Evidence From Appalachia, Kathryn M. Cardarelli, Emily M. Dewitt, Rachel Gillespie, Rachel Hogg-Graham, Heather Norman-Burgdolf, Janet T. Mullins
Dietetics and Human Nutrition Faculty Publications
Rural communities are disproportionally affected by food insecurity, making them vulnerable to the consequences of supply disruptions caused by the COVID-19 pandemic. While access to food was initially diminished due to food supply disruptions, little is known about the mechanisms through which federal emergency assistance programs impacted food access in rural populations. Through a series of five focus groups in spring 2021, we examined the impact of the COVID-19 pandemic on food access in a rural Appalachian community in Kentucky. Data were analyzed using a Grounded Theory Approach. Findings revealed the following four primary themes: food scarcity in grocery stores; …