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2019

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Articles 511 - 540 of 12283

Full-Text Articles in Life Sciences

Improving Lake Mixing Process Simulations In The Community Land Model By Using K Profile Parameterization, Qunhui Zhang, Jiming Jin, Xiaochun Wang, Phaedra E. Budy, Nick Barrett, Sarah E. Null Dec 2019

Improving Lake Mixing Process Simulations In The Community Land Model By Using K Profile Parameterization, Qunhui Zhang, Jiming Jin, Xiaochun Wang, Phaedra E. Budy, Nick Barrett, Sarah E. Null

Watershed Sciences Faculty Publications

We improved lake mixing process simulations by applying a vertical mixing scheme, K profile parameterization (KPP), in the Community Land Model (CLM) version 4.5, developed by the National Center for Atmospheric Research. Vertical mixing of the lake water column can significantly affect heat transfer and vertical temperature profiles. However, the current vertical mixing scheme in CLM requires an arbitrarily enlarged eddy diffusivity to enhance water mixing. The coupled CLM-KPP considers a boundary layer for eddy development, and in the lake interior water mixing is associated with internal wave activity and shear instability. We chose a lake in Arctic Alaska and …


Invasive Phragmites Australis Management Outcomes And Native Plant Recovery Are Context Dependent, Christine B. Rohal, Chad R. Cranney, Eric L. G. Hazelton, Karin M. Kettenring Dec 2019

Invasive Phragmites Australis Management Outcomes And Native Plant Recovery Are Context Dependent, Christine B. Rohal, Chad R. Cranney, Eric L. G. Hazelton, Karin M. Kettenring

Ecology Center Publications

The outcomes of invasive plant removal efforts are influenced by management decisions, but are also contingent on the uncontrolled spatial and temporal context of management areas. Phragmites australis is an aggressive invader that is intensively managed in wetlands across North America. Treatment options have been understudied, and the ecological contingencies of management outcomes are poorly understood. We implemented a 5‐year, multi‐site experiment to evaluate six Phragmites management treatments that varied timing (summer or fall) and types of herbicide (glyphosate or imazapyr) along with mowing, plus a nonherbicide solarization treatment. We evaluated treatments for their influence on Phragmites and native plant …


The Role Of Growth Arrest Specific 6 And Axl Signaling In Skeletal Muscle Regeneration, Marc Shigeru Matsumura Dec 2019

The Role Of Growth Arrest Specific 6 And Axl Signaling In Skeletal Muscle Regeneration, Marc Shigeru Matsumura

Theses and Dissertations

Skeletal muscle regeneration is a critical process that replaces damaged muscle fibers with new fibers. The regenerative process can be segmented into four main phases: necrosis, inflammation, regeneration, and maturation. While many of the key signaling molecules are known and characterized, there are still gaps in our understanding of how this process is regulated. While it is reported that growth arrest specific 6 (Gas6) and its receptor Axl are expressed in mature muscle tissue, nothing is known about the effect that Gas6 and Axl have on regulating skeletal muscle regeneration. In this study we investigated the regenerative process in a …


Saving Software And Using Emulation To Reproduce Computationally Dependent Research Results, Euan Cochrane, Limor Peer, Ethan Gates, Seth Anderson Dec 2019

Saving Software And Using Emulation To Reproduce Computationally Dependent Research Results, Euan Cochrane, Limor Peer, Ethan Gates, Seth Anderson

Yale Day of Data

Using digital data necessarily involves software. How do institutions think about software in the context of the long-term usability of their data assets? How do they address usability challenges uniquely posed by software such as, license restrictions, legacy software, code rot, and dependencies? These questions are germane to the agenda set forth by the FAIR principles. At Yale University, a team in the Library is looking into the application of a novel approach to emulation as a potential solution. In this presentation, we will outline the work of the Emulation as a Service Infrastructure (EaaSI) program, discuss our plans for …


Biology Of Sharks And Their Relatives Bio 422, Joanna Burkhardt Dec 2019

Biology Of Sharks And Their Relatives Bio 422, Joanna Burkhardt

Library Impact Statements

No abstract provided.


Performance Of 10 Slicing Cucumbers In Southwest Michigan, Ron G. Goldy Dec 2019

Performance Of 10 Slicing Cucumbers In Southwest Michigan, Ron G. Goldy

Midwest Vegetable Trial Reports

Fruit quality and yield were lower than in previous Southwest Michigan Research and Extension Center slicing cucumber trials. This may primarily be to lower bee activity affecting pollination, fruit set and fruit shape. However, from this trial Bristol, SVCS0927, LS 75-1011, Darlington, and Perfect 10 deserve consideration for further commercial planting in Southwest Michigan.


Evaluation Of Transplant Root Length On Bell Pepper Yield And Quality, Ron G. Goldy Dec 2019

Evaluation Of Transplant Root Length On Bell Pepper Yield And Quality, Ron G. Goldy

Midwest Vegetable Trial Reports

Allowing bell pepper transplants to develop a taproot system was detrimental to early plant growth. However, it did not have a significant detrimental effect on most fruit yield and quality parameters measured, and by final harvest, plants of all three root length treatments had similar above ground plant weights.


Data Archive: Using A Coproduction Approach To Map Future Forest Retention Likelihood In The Southeastern United States, Rachel E. Greene, Kristine O. Evans, Michael T. Gray, D. Todd Jones-Farrand, William G. Wathen Dec 2019

Data Archive: Using A Coproduction Approach To Map Future Forest Retention Likelihood In The Southeastern United States, Rachel E. Greene, Kristine O. Evans, Michael T. Gray, D. Todd Jones-Farrand, William G. Wathen

College of Forest Resources Publications and Scholarship

Supporting data for publication titled: Using a Coproduction Approach to Map Future Forest Retention Likelihood in the Southeastern United States;

Journal of Forestry, 2020, 28–43 doi:10.1093/jofore/fvz063


The Effects Of Eating Unprocessed Foods, Gwen Peters, Meghan Sheridan, Caitlin Clack Dec 2019

The Effects Of Eating Unprocessed Foods, Gwen Peters, Meghan Sheridan, Caitlin Clack

Student Work

Some studies have shown that processed foods are “getting safer and the technologies used to produce them are only getting better.” Although this is a good claim, unprocessed foods still provide better social, environmental and economical resources to communities.


Performance Of 18 Fresh Market And Eight Saladette Tomato Cultivars In Southwest Michigan In 2019, Ron G. Goldy Dec 2019

Performance Of 18 Fresh Market And Eight Saladette Tomato Cultivars In Southwest Michigan In 2019, Ron G. Goldy

Midwest Vegetable Trial Reports

It was again a difficult year for growing tomatoes at the Southwest Michigan Research and Extension Center. Rain shortly after field planting induced early bacterial disease infection, leading to defoliation and decreased fruit quality. The best performers in the fresh market trial were Red Snapper, Camaro, Saybrook, Jolene, and Myrtle. It was difficult to get good separation in the saladette trial. No entries rose above the others.


Response Of Cucumber, Yellow Squash, And Zucchini To Six Nitrogen Rates, Ron G. Goldy Dec 2019

Response Of Cucumber, Yellow Squash, And Zucchini To Six Nitrogen Rates, Ron G. Goldy

Midwest Vegetable Trial Reports

There were few significant differences across the six nitrogen levels for the traits measured for all three crops. No clear trends were observed as nitrogen level was increased from 50 to 175#/acre. Better separation may have been obtained with more replication. Results indicate growers of slicing cucumber, yellow squash, and zucchini should be able to obtain adequate fruit yields using a season total of between 75 and 100#/acre nitrogen.


The Macroevolution Of Diadromous And Non-Diadromous Clupeiformes., Lindsey Dehaan Dec 2019

The Macroevolution Of Diadromous And Non-Diadromous Clupeiformes., Lindsey Dehaan

Honors Theses

Migration is a common life history strategy across the animal tree of life. This behavior is energetically demanding and may trigger strong selection for the evolution of an optimal ecomorphology to lessen energetic costs, yet the ecomorphology of migratory aquatic species remains poorly understood. Previous studies have demonstrated that migratory fishes exhibit predictable phenotypic patterns in body size evolution in response to evolving migration: migratory fishes are larger than non-migratory fishes. Migratory fishes may also have functional traits (e.g. fin shape) associated with locomotion that have experienced similar selective forces and exhibit predictable evolutionary patterns, resulting in migratory lineages sharing …


Springs Of The Arabian Peninsula: Historical Trends, Current Status And Human Impact In Saudi Arabia, Oman And Jordan, Kamal M. Aljohani Dec 2019

Springs Of The Arabian Peninsula: Historical Trends, Current Status And Human Impact In Saudi Arabia, Oman And Jordan, Kamal M. Aljohani

USF Tampa Graduate Theses and Dissertations

This research was conducted to update previous studies of the springs of the Arabian Peninsula (Saudi Arabia, Oman and Jordan). Approach: 76 springs were surveyed in between March and July 2018: 15 Saudi Arabia, 41 Oman and 20 Jordan to ascertain the current status, water quality and zooplankton benthos and fish communities. Investigation of the changes of biota and chemical parameters downstream from the springs source in Saudi Arabia. Results: Mercury exceeded the WHO and USEPA maximum contaminant level (MCL) in 63 of 76 springs, Aluminum exceeded MCL in 8 of 76 springs, and both were the common dissolved heavy …


Determination Of Optimal Mild Organic Solvents Of Pdnps For Carbon-Carbon Coupling Reactions, Trina Biswas Dec 2019

Determination Of Optimal Mild Organic Solvents Of Pdnps For Carbon-Carbon Coupling Reactions, Trina Biswas

Honors College Theses

The synthesis of nanoparticles is an increasingly popular field of interest. The application of nanoparticles is especially popular in the field of nanocatalysts. Metal nanoparticles (NPs) are favorable for catalysis because of the large surface area to volume ratio, which allows them to catalyze a variety of reactions using lesser amounts of active material. As the field of nanoparticle research expands, efforts are being made to create more sustainable approaches to the synthesis of these particles. This research sought to translate the benefits of peptide-based synthesis to organic solvents and use less toxic organic solvents for carbon-carbon coupling reactions, like …


Trematodes And Neorickettsia: Diversity Of Digeneans And Their Bacterial Endosymbionts (Neorickettsia) In Mollusk First Intermediate Hosts From Eastern Mongolia, Morgan Gallahue Dec 2019

Trematodes And Neorickettsia: Diversity Of Digeneans And Their Bacterial Endosymbionts (Neorickettsia) In Mollusk First Intermediate Hosts From Eastern Mongolia, Morgan Gallahue

Honors College Theses

This study focused on the survey of 34 freshwater snail samples collected from NE Mongolia for larval flatworm parasites in the class Trematoda. 32 of the snail samples were infected, and the parasites were identified based on morphology and DNA sequences. Nine of the identified parasite samples were screened for the presence of bacterial endosymbionts in the genus Neorickettsia in the family Anaplasmataceae. All of the samples screened for Neorickettsia were negative for the bacterium. Species of Neorickettsia are known to cause several diseases such as Sennetsu Fever (in humans) and Potomac Horse Fever. There have been relatively few reliable …


Individual Based Model To Simulate The Evolution Of Insecticide Resistance, William B. Jamieson Dec 2019

Individual Based Model To Simulate The Evolution Of Insecticide Resistance, William B. Jamieson

Department of Mathematics: Dissertations, Theses, and Student Research

Insecticides play a critical role in agricultural productivity. However, insecticides impose selective pressures on insect populations, so the Darwinian principles of natural selection predict that resistance to the insecticide is likely to form in the insect populations. Insecticide resistance, in turn, severely reduces the utility of the insecticides being used. Thus there is a strong economic incentive to reduce the rate of resistance evolution. Moreover, resistance evolution represents an example of evolution under novel selective pressures, so its study contributes to the fundamental understanding of evolutionary theory.

Insecticide resistance often represents a complex interplay of multiple fitness trade-offs for individual …


The Black Identity, Hair Product Use, And Breast Cancer Scale, Dede Teteh, Marissa Ericson, Sabine Monice, Lenna Dawkins-Moultin, Nasim Bahadorani, Phyllis Clark, Eudora Mitchell, Lindsey S. Treviño, Adana Llanos, Rick Kittles, Susanne Montgomery Dec 2019

The Black Identity, Hair Product Use, And Breast Cancer Scale, Dede Teteh, Marissa Ericson, Sabine Monice, Lenna Dawkins-Moultin, Nasim Bahadorani, Phyllis Clark, Eudora Mitchell, Lindsey S. Treviño, Adana Llanos, Rick Kittles, Susanne Montgomery

Health Sciences and Kinesiology Faculty Articles

Introduction
Across the African Diaspora, hair is synonymous with identity. As such, Black women use a variety of hair products, which often contain more endocrine-disrupting chemicals than products used by women of other races. An emerging body of research is linking chemicals in hair products to breast cancer, but there is no validated instrument that measures constructs related to hair, identity, and breast health. The objective of this study was to develop and validate the Black Identity, Hair Product Use, and Breast Cancer Scale (BHBS) in a diverse sample of Black women to measure the social and cultural constructs associated …


Green Roof System Integrated Soil Methods, Jude R. Vallon, Ivan L. Guzman Dec 2019

Green Roof System Integrated Soil Methods, Jude R. Vallon, Ivan L. Guzman

Publications and Research

Large metropolitan areas like NYC are seeking to integrate sustainability into retrofitting buildings for the development of green infrastructure. Among the many environmental issues of urbanization, the UHI (urban heat island) effect and storm water runoff are of particular interest when it comes building structures. Individual buildings can contribute towards mitigating these effects with implementation of vegetative rooftops, i.e. Green Roofs. Commercial buildings are currently receiving government incentives and new constructions are required to include green roof installations. However, if existing buildings are considering the addition of a green roof on an existing roof, they have to factor in the …


The Ethical Implications Of Bioengineering Advancements, Mainstream Media Coverage Of Those Developments, And The Future Of Motherhood, Aliff Abad, Katherine Gregory Dec 2019

The Ethical Implications Of Bioengineering Advancements, Mainstream Media Coverage Of Those Developments, And The Future Of Motherhood, Aliff Abad, Katherine Gregory

Publications and Research

How do the media interpret reproductive interventions that involve genetic testing? When a scientist performed the first known genetic editing on twins, Lulu and Nana, he ignored ethical considerations of CRISPR use. This project provides a content analysis based on a review of popular science and newspaper articles. Our interpretation of these articles suggest that there is a lack of critical understanding of this unethical procedure and a similar attitude towards future genetic developments. While the public is curious about the repercussions of genetic editing, not enough focus is applied to the ethics of conducting such a procedure.


The Impact Of Veterans Treatment Courts On The Community, Daniela Mettos, Amanda Leingang Dec 2019

The Impact Of Veterans Treatment Courts On The Community, Daniela Mettos, Amanda Leingang

Cornhusker Economics

With the United States’ ongoing presence in the Middle East and the ever-present possibility of future conflict, the commitment to tend to the unique needs of veterans returning from combat is an essential one. The number of veterans suffering from mental health issues, substance abuse disorders, and physical trauma continues to rise. With this comes an increased risk of Intimate Partner Violence (IPV), drug and alcohol abuse, and repeating criminal behavior, all of which increase the likelihood that veterans will find themselves involved in the criminal justice system at some point following their combat service.

Utilizing effective, reliable, and focused …


Genetically Modified Organisms In The United States Crop Market, Toluwani V. Ogunbayode Dec 2019

Genetically Modified Organisms In The United States Crop Market, Toluwani V. Ogunbayode

Quest

Economic Analysis

Research in progress for ECON 2302: Principles of Microeconomics

Faculty Mentors: Millie D. Black, Ph.D., and Michael Latham, Ph.D.

The following paper represents research begun by students in Honors Principles of Microeconomics. The honors course introduced students to numerous economic models and methods of analysis. Students were asked to identify an economic issue or controversy related to topics studied in class and to provide a literature review relevant to their topic. Students were also asked to provide an economic analysis, discuss opposing viewpoints, present an economic evaluation of various policy options, and make a recommendation regarding the preferred …


Scorpions Of The Horn Of Africa (Arachnida, Scorpiones). Part Xxii. Two New Species Of Neobuthus From Somaliland (Buthidae), František Kovařík Dec 2019

Scorpions Of The Horn Of Africa (Arachnida, Scorpiones). Part Xxii. Two New Species Of Neobuthus From Somaliland (Buthidae), František Kovařík

Euscorpius

New information about taxonomy and distribution of the genus Neobuthus Hirst, 1911 is presented, based on material recently collected in Somaliland. N. awashensis Kovařík & Lowe, 2012 is reported from Somaliland for the first time. Two new species are described, N. haeckeli sp. n. and N. solegladi sp. n. An updated distribution map of the genus Neobuthus is provided.


Narratives Of Canadian Identity At The Ultimate Fighting Championship, Jared V. Walters Dec 2019

Narratives Of Canadian Identity At The Ultimate Fighting Championship, Jared V. Walters

Electronic Thesis and Dissertation Repository

The purpose of this dissertation was to examine the use of representations and symbols of Canadian identity within the event coverage produced by the Ultimate Fighting Championship Corporation, in the context of its two key events, Ultimate Fighting Championship, and Fight Night, produced in Canada. To establish the historical context in which the sport developed in Canada, a narrative historiography of the political and legal struggles that led to the legalization and increasing popularity of Mixed Martial Arts, and the UFCC’s version of the sport, in particular. This first major part of the dissertation is contained in Study 1. The …


Diet Composition And Mercury Exposure In Bank Swallows (Riparia Riparia) Breeding At Lakeshore And Aggregate Pits, Corrine S. V. Génier Dec 2019

Diet Composition And Mercury Exposure In Bank Swallows (Riparia Riparia) Breeding At Lakeshore And Aggregate Pits, Corrine S. V. Génier

Electronic Thesis and Dissertation Repository

Bank Swallows (Riparia riparia), a threatened species in Ontario, breed primarily in banks at lakeshores and in artificial aggregate pits. Inland pits may be ecological traps for this species, but the relative tradeoffs between these two nesting habitats are unknown. Availability of aquatic emergent insects at lakeshores may have associated nutritional benefits (e.g. Omega-3 fatty acids) and contaminants (e.g. mercury) that can directly influence juvenile growth. This study compares these breeding habitats to evaluate dietary differences as revealed by fatty acids, stable isotopes (δ13C, δ15N, δ2H), fecal DNA barcoding, and mercury. Lakeshore-nesting …


Estimating Heritability And Genetic Correlations From Large Health Datasets In The Absence Of Genetic Data., Gengjie Jia, Yu Li, Hanxin Zhang, Ishanu Chattopadhyay, Anders Boeck Jensen, David R Blair, Lea Davis, Peter N Robinson, Torsten Dahlén, Søren Brunak, Mikael Benson, Gustaf Edgren, Nancy J Cox, Xin Gao, Andrey Rzhetsky Dec 2019

Estimating Heritability And Genetic Correlations From Large Health Datasets In The Absence Of Genetic Data., Gengjie Jia, Yu Li, Hanxin Zhang, Ishanu Chattopadhyay, Anders Boeck Jensen, David R Blair, Lea Davis, Peter N Robinson, Torsten Dahlén, Søren Brunak, Mikael Benson, Gustaf Edgren, Nancy J Cox, Xin Gao, Andrey Rzhetsky

Faculty Research 2019

Typically, estimating genetic parameters, such as disease heritability and between-disease genetic correlations, demands large datasets containing all relevant phenotypic measures and detailed knowledge of family relationships or, alternatively, genotypic and phenotypic data for numerous unrelated individuals. Here, we suggest an alternative, efficient estimation approach through the construction of two disease metrics from large health datasets: temporal disease prevalence curves and low-dimensional disease embeddings. We present eleven thousand heritability estimates corresponding to five study types: twins, traditional family studies, health records-based family studies, single nucleotide polymorphisms, and polygenic risk scores. We also compute over six hundred thousand estimates of genetic, environmental …


Interleukin-27 Is Essential For Type 1 Diabetes Development And Sjögren Syndrome-Like Inflammation., Ashley E Ciecko, Bardees Foda, Jennifer Y Barr, Sheela Ramanathan, Mark A Atkinson, David V. Serreze, Aron M Geurts, Scott M Lieberman, Yi-Guang Chen Dec 2019

Interleukin-27 Is Essential For Type 1 Diabetes Development And Sjögren Syndrome-Like Inflammation., Ashley E Ciecko, Bardees Foda, Jennifer Y Barr, Sheela Ramanathan, Mark A Atkinson, David V. Serreze, Aron M Geurts, Scott M Lieberman, Yi-Guang Chen

Faculty Research 2019

Human genetic studies implicate interleukin-27 (IL-27) in the pathogenesis of type 1 diabetes (T1D), but the underlying mechanisms remain largely unexplored. To further define the role of IL-27 in T1D, we generated non-obese diabetic (NOD) mice deficient in IL-27 or IL-27Rα. In contrast to wild-type NOD mice, both NOD.Il27-/- and NOD.Il27ra-/- strains are completely resistant to T1D. IL-27 from myeloid cells and IL-27 signaling in T cells are critical for T1D development. IL-27 directly alters the balance of regulatory T cells (Tregs) and T helper 1 (Th1) cells in pancreatic islets, which in turn modulates the diabetogenic activity …


High-Throughput Nano-Scale Characterization Of Membrane Proteins Using Fluorescence-Detection Size-Exclusion Chromatography, Alex J. Vecchio, Robert M. Stroud Dec 2019

High-Throughput Nano-Scale Characterization Of Membrane Proteins Using Fluorescence-Detection Size-Exclusion Chromatography, Alex J. Vecchio, Robert M. Stroud

Department of Biochemistry: Faculty Publications

Structural biology has revealed predicting heterologous expression levels, homogeneity, and stability of a protein from its primary structure are exceedingly difficult. Membrane proteins, in particular, present numerous challenges that make obtaining milligram quantities of quality samples problematic. For structural and functional investigation of these molecules, however, this is what is required. Fluorescence size-exclusion chromatography (F-SEC), a technique where a protein of biological interest is fused to green fluorescent protein (GFP) and monitored, circumvents many bottlenecks inherent to membrane protein structural biology. In vivo expression yields, as well as in vitro homogeneity and stability, can be rapidly evaluated utilizing nanogram quantities …


Radical Botany: Plants And Speculative Fiction [Table Of Contents], Natania Meeker, Antónia Szabari Dec 2019

Radical Botany: Plants And Speculative Fiction [Table Of Contents], Natania Meeker, Antónia Szabari

Literature

No abstract provided.


Mangrove Cuckoo, Coccyzus Minor, Neurocranium, Lola R. Mildren, David Kerstetter Dec 2019

Mangrove Cuckoo, Coccyzus Minor, Neurocranium, Lola R. Mildren, David Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

No abstract provided.


Notes On The Natural History Of Plesioclytus Morrisi Wappes And Skelley, 2015 And Plesioclytus Relictus Giesbert, 1993 (Coleoptera: Cerambycidae), Kyle E. Schnepp Dec 2019

Notes On The Natural History Of Plesioclytus Morrisi Wappes And Skelley, 2015 And Plesioclytus Relictus Giesbert, 1993 (Coleoptera: Cerambycidae), Kyle E. Schnepp

Insecta Mundi

The host plant and life history observations of Plesioclytus morrisi Wappes and Skelley and Plesioclytus relictus Giesbert (Coleoptera: Cerambycidae: Plesioclytini) are described for the first time. The host for both species is shown to be Polygonum polygamum Vent. (Polygonaceae). Observations also indicate that plants chosen for oviposition occur in open sand areas of scrub habitat.