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Articles 2461 - 2490 of 45704
Full-Text Articles in Entire DC Network
A Redox-Reversible A/B-Site Co-Doped Bafeo3 Electrode For Direct Hydrocarbon Solid Oxide Fuel Cells, Haixia Li, Wanhua Wang, Kai Zhao, Ka-Young Park, Taehee Lee, Ramin Babazadeh Dizaj, Andreas Heyden, Dong Ding, Fanglin Chen
A Redox-Reversible A/B-Site Co-Doped Bafeo3 Electrode For Direct Hydrocarbon Solid Oxide Fuel Cells, Haixia Li, Wanhua Wang, Kai Zhao, Ka-Young Park, Taehee Lee, Ramin Babazadeh Dizaj, Andreas Heyden, Dong Ding, Fanglin Chen
Faculty Publications
Solid oxide fuel cells (SOFCs) can directly convert the chemical energy in fuel to electrical energy with fuel flexibility; however, the conventional nickel-based anodes face great challenges due to coking upon direct oxidation of hydrocarbon fuels and redox instability. Thus, developing new anode materials which can provide high coking resistance as well as redox stability is crucial. In this work, Ba0.6La0.4Fe0.8Mo0.1Ni0.1O3−δ (BLFMN) has been synthesized in air using a sol–gel combustion method, resulting in a dual phase consisting of a cubic BLFMN main phase and scheelite BaMoO4 …
A Redox-Reversible A/B-Site Co-Doped Bafeo3 Electrode For Direct Hydrocarbon Solid Oxide Fuel Cells, Haixia Li, Wanhua Wang, Kai Zhao, Ka-Young Park, Taehee Lee, Ramin Babazadeh Dizaj, Andreas Heyden, Dong Ding, Fanglin Chen
A Redox-Reversible A/B-Site Co-Doped Bafeo3 Electrode For Direct Hydrocarbon Solid Oxide Fuel Cells, Haixia Li, Wanhua Wang, Kai Zhao, Ka-Young Park, Taehee Lee, Ramin Babazadeh Dizaj, Andreas Heyden, Dong Ding, Fanglin Chen
Faculty Publications
Solid oxide fuel cells (SOFCs) can directly convert the chemical energy in fuel to electrical energy with fuel flexibility; however, the conventional nickel-based anodes face great challenges due to coking upon direct oxidation of hydrocarbon fuels and redox instability. Thus, developing new anode materials which can provide high coking resistance as well as redox stability is crucial. In this work, Ba0.6La0.4Fe0.8Mo0.1Ni0.1O3−δ (BLFMN) has been synthesized in air using a sol–gel combustion method, resulting in a dual phase consisting of a cubic BLFMN main phase and scheelite BaMoO4 …
Techno-Economic Optimization Of A Hybrid Energy System With Limited Grid Connection In Pursuit Of Net Zero Carbon Emissions For New Zealand, Daniel Hill, Shafiqur Rahman Tito, Michael Walmsley, John Hedengren
Techno-Economic Optimization Of A Hybrid Energy System With Limited Grid Connection In Pursuit Of Net Zero Carbon Emissions For New Zealand, Daniel Hill, Shafiqur Rahman Tito, Michael Walmsley, John Hedengren
Faculty Publications
As New Zealand moves towards net zero carbon emissions by 2050, multiple factors must be considered including increased electrical load due to electrification, variability of renewable energy generators, required storage capacity, system economics and limitations on grid transmission capacity. Complex and region-specific interactions between the various design choices involved are likely to require an understanding of a range of optimal and near-optimal designs for proposed micro-grid systems as opposed to a single optimal point. This work develops a novel multiscale optimization algorithm for optimization from a univariate capacity optimization approach to a multivariate one. This enhanced algorithm is applied to …
Effects Of College Physical Activity Instructors' Enthusiasm On Student Experiences In Class, David C. Barney, Teresa Leavitt Dr.
Effects Of College Physical Activity Instructors' Enthusiasm On Student Experiences In Class, David C. Barney, Teresa Leavitt Dr.
Faculty Publications
It is hoped that teachers in all content areas will be excited, or enthusiastic for what they will be teaching their students. A teacher’s enthusiasm in class can be beneficial to students (Locke & Woods, 1982). Teacher enthusiasm also applies in college physical activity classes. This study investigated college physical activity instructor’s perception and opinions their enthusiasm and how it may affect the student’s experiences in class. For this study 10 college physical activity instructors were surveyed. Generally, the college physical activity felt that when they initiate conversations with students, listen to students, and are excited about what they are …
College Students' Perceptions And Opinions Of Their Physical Activity Instructor Being Caring In Class, David C. Barney, Kamora Shelton, Katelyn Rogers, Teresa Leavitt Dr.
College Students' Perceptions And Opinions Of Their Physical Activity Instructor Being Caring In Class, David C. Barney, Kamora Shelton, Katelyn Rogers, Teresa Leavitt Dr.
Faculty Publications
College can be a very impressionable time for a student, both positively and negatively. One way the college experience can be positive is the interactions the student has with their professors/instructors (hereafter the term instructor will be used). One behavior the instructors can exhibit including in physical activity (PA) classes is being caring or showing caring behaviors toward students. The purpose of this study was to investigate college students’ perceptions of the impact of PA instructor caring behaviors toward the student. For this study 69 college students (45 males and 24 females) were surveyed with one open-ended survey question. It …
Quantification Of Surface Layer Turbulence Using Sensible Heat Values From Energy Balance Versus Aerodynamic Methods, Steven T. Fiorino, Yogendra Raut, Jaclyn Schmidt, Laura Slabaugh, Blaine Fourman, Jack E. Mccrae, Benjamin C. Wilson, Santasri R. Bose-Pillai
Quantification Of Surface Layer Turbulence Using Sensible Heat Values From Energy Balance Versus Aerodynamic Methods, Steven T. Fiorino, Yogendra Raut, Jaclyn Schmidt, Laura Slabaugh, Blaine Fourman, Jack E. Mccrae, Benjamin C. Wilson, Santasri R. Bose-Pillai
Faculty Publications
Surface layer optical turbulence values in the form of the refractive index structure function C_n^2 are often calculated from surface layer temperature, moisture, and wind characteristics and compared to measurements from sonic anemometers, differential temperature sensors, and imaging systems. A key derived component needed in the surface layer turbulence calculations is the sensible heat value. Typically, the sensible heat is calculated using the bulk aerodynamic method that assumes a certain surface roughness and a friction velocity that approximates the turbulence drag on temperature and moisture mixing from the change in the average surface layer vertical wind velocity. These assumptions/approximations generally …
Incorporating Solvent Effects In Dft: Insights From Cation Exchange In Faujasites, An T. Ta, Ayoub Daouli, R. Seaton Ullberg, Eric Fonseca, Vanessa Proust, Agnès Grandjean, Richard G. Hennig, Hans Conrad Zur Loye, Michael Badawi, Simon R. Phillpot
Incorporating Solvent Effects In Dft: Insights From Cation Exchange In Faujasites, An T. Ta, Ayoub Daouli, R. Seaton Ullberg, Eric Fonseca, Vanessa Proust, Agnès Grandjean, Richard G. Hennig, Hans Conrad Zur Loye, Michael Badawi, Simon R. Phillpot
Faculty Publications
Zeolites are versatile materials renowned for their extra-framework cation exchange capabilities, with applications spanning diverse fields, including nuclear waste treatment. While detailed experimental characterization offers valuable insight, density functional theory (DFT) proves particularly adept at investigating ion exchange in zeolites, owing to its atomic and electronic resolution. However, the prevalent occurrence of zeolitic ion exchange in aqueous environments poses a challenge to conventional DFT modeling, traditionally conducted in a vacuum. This study seeks to enhance zeolite modeling by systematically evaluating predictive differences across varying degrees of aqueous solvent inclusion. Specifically focusing on monovalent cation exchange in Na-X zeolites, we explore …
Reducing Non-Communicable Diseases Among Palestinian Populations In Gaza: A Participatory Comparative And Cost-Effectiveness Modeling Assessment, Sanjay Basu, John S. Yudkin, Mohammed Jawad, Hala Ghattas Ph.D., Bassam Abu Hamad, Zeina Jamaluddine, Gloria Safadi, Marie Elizabeth Ragi, Raeda El Sayed Ahmad, Eszter P. Vamos, Christopher Millett
Reducing Non-Communicable Diseases Among Palestinian Populations In Gaza: A Participatory Comparative And Cost-Effectiveness Modeling Assessment, Sanjay Basu, John S. Yudkin, Mohammed Jawad, Hala Ghattas Ph.D., Bassam Abu Hamad, Zeina Jamaluddine, Gloria Safadi, Marie Elizabeth Ragi, Raeda El Sayed Ahmad, Eszter P. Vamos, Christopher Millett
Faculty Publications
We sought to assess the effectiveness and cost-effectiveness of potential new public health and healthcare NCD risk reduction efforts among Palestinians in Gaza. We created a microsimulation model using: (i) a cross-sectional household survey of NCD risk factors among 4,576 Palestinian adults aged ≥40 years old in Gaza; (ii) a modified Delphi process among local public health experts to identify potentially feasible new interventions; and (iii) reviews of intervention cost and effectiveness, modified to the Gazan and refugee contexts. The survey revealed 28.6% tobacco smoking, a 40.4% prevalence of hypertension diagnosis (with a 95.6% medication treatment rate), a 25.6% prevalence …
Multiscale Modeling Of Oxygen Evolution Through Generated Bilayer Porous Transport Layers For Pemwe Performance Improvement, M. Sepe, G.-H. Jung, G.S- Doo, C.-S. Lee, H.-S. Cho, N. Tippayawong, Sirivatch Shimpalee
Multiscale Modeling Of Oxygen Evolution Through Generated Bilayer Porous Transport Layers For Pemwe Performance Improvement, M. Sepe, G.-H. Jung, G.S- Doo, C.-S. Lee, H.-S. Cho, N. Tippayawong, Sirivatch Shimpalee
Faculty Publications
Optimization of proton exchange membrane water electrolyzers (PEMWE) has become a focus of researchers looking for a reliable way to generate power. A vital component to PEMWE operation is the porous transport layer (PTL) on the anode side, which is where oxygen is produced. The PTL must allow water access to the catalyst layer and remove oxygen simultaneously. In this work, a previously developed imaging technique is used to generate bilayer PTL structures. A multiscale modeling approach was used to study the effect of a bilayer PTL on oxygen evolution and PEMWE performance. First, a micro scale model was used …
Modes Of Weather System-Induced Flows Through An Arctic Lagoon, Chunyan Li, Wei Huang, Changsheng Chen, Kevin M. Boswell, Renhao Wu
Modes Of Weather System-Induced Flows Through An Arctic Lagoon, Chunyan Li, Wei Huang, Changsheng Chen, Kevin M. Boswell, Renhao Wu
Faculty Publications
With the increasing warming of the Arctic, the summertime ice-free period in the coastal Arctic becomes longer and the water exchange between arctic lagoons and coastal Beaufort Sea becomes more important for land–ocean interaction. This study examined the dynamics of water exchange between the arctic lagoons and the Arctic Ocean under the influence of weather systems (the transient arctic cyclones and hovering Beaufort High pressure system). We implemented rare observations, numerical modeling with the Finite Volume Community Ocean Model (FVCOM), and a forcing-response Empirical Orthogonal Function (fr-EOF) analysis to determine the weather-driven flow patterns and characteristics in the micro-tidal arctic …
Empowering Collaborative Application Development: A Robust Framework For Ad-Hoc Distributed Systems, Imran Abbas Khawaja, Kamran Abid, Uzma Farooq, Zaki Malik
Empowering Collaborative Application Development: A Robust Framework For Ad-Hoc Distributed Systems, Imran Abbas Khawaja, Kamran Abid, Uzma Farooq, Zaki Malik
Faculty Publications
The amalgamation of ubiquity, mobility, computing prowess, storage, and communication of the portable electronic devices including smartphones, wearable devices, tablets have significantly altered the fabric of human existence. The software applications for these mobile devices possess the capability to disseminate and receive information, thereby enable the development of applications that may execute in collaborative manner. However, in situations with ad-hoc connectivity unavailability of infrastructure and communication breakdown are common, which inhibit information sharing across the devices, and hence affect the applications running in the collaborative spaces. Further the applications developers face challenges while developing reliable collaborative applications that can seamlessly …
Detection Of Ochyromera Ligustri (Coleoptera: Curculionidae: Curculioninae) In Ligustrum Spp. (Oleaceae) Using Newly Developed Pcr Primers, Ilgoo Kang, Amy Roda, Brandi Misiaszek, Tanner Sparks, Rodrigo Diaz
Detection Of Ochyromera Ligustri (Coleoptera: Curculionidae: Curculioninae) In Ligustrum Spp. (Oleaceae) Using Newly Developed Pcr Primers, Ilgoo Kang, Amy Roda, Brandi Misiaszek, Tanner Sparks, Rodrigo Diaz
Faculty Publications
Ligustrum spp. (Oleaceae) have become invasive species in the US and negatively affect native plant diversity and richness in forests. Ochyromera ligustri (Coleoptera: Curculionidae) is considered a potential biological control agent in the US because adults feed on the foliage and larvae are seed-feeders of Ligustrum spp. To discover the relationships between O. ligustri and Ligustrum spp., fruit dissections or rearing and field observations are required. In the current research project, novel PCR primers were developed to rapidly detect the DNA of O. ligustri in molecular analyses without rearing and observation. The developed PCR primers worked even with 0.01 ng …
Relative Impacts Of Varroa Destructor (Mesostigmata:Varroidae) Infestation And Pesticide Exposure On Honey Bee Colony Health And Survival In A High-Intensity Corn And Soybean Producing Region In Northern Iowa, Frank D. Rinkevich, Robert G. Danka, Thomas E. Rinderer, Joseph W. Margotta, Lewis J. Bartlett, Kristen B. Healy
Relative Impacts Of Varroa Destructor (Mesostigmata:Varroidae) Infestation And Pesticide Exposure On Honey Bee Colony Health And Survival In A High-Intensity Corn And Soybean Producing Region In Northern Iowa, Frank D. Rinkevich, Robert G. Danka, Thomas E. Rinderer, Joseph W. Margotta, Lewis J. Bartlett, Kristen B. Healy
Faculty Publications
The negative effects of Varroa and pesticides on colony health and survival are among the most important concerns to beekeepers. To compare the relative contribution of Varroa, pesticides, and interactions between them on honey bee colony performance and survival, a 2-year longitudinal study was performed in corn and soybean growing areas of Iowa. Varroa infestation and pesticide content in stored pollen were measured from 3 apiaries across a gradient of corn and soybean production areas and compared to measurements of colony health and survival. Colonies were not treated for Varroa the first year, but were treated the second year, leading …
Breaking The Spatial Justice Emergency Cycle: The Role Of Foresight Planning, Fabio Capra-Ribeiro
Breaking The Spatial Justice Emergency Cycle: The Role Of Foresight Planning, Fabio Capra-Ribeiro
Faculty Publications
This paper examines the critical need to integrate prospective planning into territorial development processes for achieving spatial justice and sustainable urban futures. It highlights the limitations of a reactive approach to urban governance, particularly prevalent in Latin America, where weak institutions and unstable political systems often hinder long-term perspectives. The research emphasizes the importance of strategic foresight as a complementary tool to traditional planning practices. Territorial foresight facilitates the exploration of complex future scenarios, fostering collaborative learning and a shared vision among stakeholders. The study proposes a shift towards a proactive, foresight-driven approach that can help break the vicious cycle …
Spatial Justice: Deductions, Demonstrations, And Derivations, Fabio Capra-Ribeiro
Spatial Justice: Deductions, Demonstrations, And Derivations, Fabio Capra-Ribeiro
Faculty Publications
No abstract provided.
Mapping And Omics Integration: Towards Precise Rice Disease Resistance Breeding, John Christian Ontoy, Jong Hyun Ham
Mapping And Omics Integration: Towards Precise Rice Disease Resistance Breeding, John Christian Ontoy, Jong Hyun Ham
Faculty Publications
Rice (Oryza sativa), as a staple crop feeding a significant portion of the global population, particularly in Asian countries, faces constant threats from various diseases jeopardizing global food security. A precise understanding of disease resistance mechanisms is crucial for developing resilient rice varieties. Traditional genetic mapping methods, such as QTL mapping, provide valuable insights into the genetic basis of diseases. However, the complex nature of rice diseases demands a holistic approach to gain an accurate knowledge of it. Omics technologies, including genomics, transcriptomics, proteomics, and metabolomics, enable a comprehensive analysis of biological molecules, uncovering intricate molecular interactions within the rice …
Speech, Voice, And Language Outcomes Following Deep Brain Stimulation: A Systematic Review, Fatemeh Tabari, Joel I. Berger, Oliver Flouty, Brian Copeland, Jeremy D. Greenlee, Karim Johari
Speech, Voice, And Language Outcomes Following Deep Brain Stimulation: A Systematic Review, Fatemeh Tabari, Joel I. Berger, Oliver Flouty, Brian Copeland, Jeremy D. Greenlee, Karim Johari
Faculty Publications
Background Deep brain stimulation (DBS) reliably ameliorates cardinal motor symptoms in Parkinson’s disease (PD) and essential tremor (ET). However, the effects of DBS on speech, voice and language have been inconsistent and have not been examined comprehensively in a single study. Objective We conducted a systematic analysis of literature by reviewing studies that examined the effects of DBS on speech, voice and language in PD and ET. Methods A total of 675 publications were retrieved from PubMed, Embase, CINHAL, Web of Science, Cochrane Library and Scopus databases. Based on our selection criteria, 90 papers were included in our analysis. The …
Clear Speech Effects In Production Of Sentence-Medial Mandarin Lexical Tonesa), Jack Rittenberry, Irina A. Shport
Clear Speech Effects In Production Of Sentence-Medial Mandarin Lexical Tonesa), Jack Rittenberry, Irina A. Shport
Faculty Publications
Adding to limited research on clear speech in tone languages, productions of Mandarin lexical tones were examined in pentasyllabic sentences. Fourteen participants read sentences imagining a hard-of-hearing addressee or a friend in a casual social setting. Tones produced in clear speech had longer duration, higher intensity, and larger F0 values. This style effect was rarely modulated by tone, preceding tonal context, or syllable position, consistent with an overall signal enhancement strategy. Possible evidence for tone enhancement was observed only in one set of analysis for F0 minimum and F0 range, contrasting tones with low targets and tones with high targets.
Exploring Pathways Toward Open-Hardware Ecosystems To Safeguard Genetic Resources For Biomedical Research Communities Using Aquatic Model Species, Yue Liu, Jack C. Koch, Lucía Arregui, Allyssa Oune, Sarah Bodenstein, Maria T. Gutierrez-Wing, Terrence R. Tiersch
Exploring Pathways Toward Open-Hardware Ecosystems To Safeguard Genetic Resources For Biomedical Research Communities Using Aquatic Model Species, Yue Liu, Jack C. Koch, Lucía Arregui, Allyssa Oune, Sarah Bodenstein, Maria T. Gutierrez-Wing, Terrence R. Tiersch
Faculty Publications
Development of reliable germplasm repositories is critical for preservation of genetic resources of aquatic species, which are widely utilized to support biomedical innovation by providing a foundational source for naturally occurring variation and development of new variants through genetic manipulations. A significant barrier in repository development is the lack of cryopreservation capability and reproducibility across the research community, posing great risks of losing advances developed from billions of dollars of research investment. The emergence of open scientific hardware has fueled a new movement across biomedical research communities. With the increasing accessibility of consumer-level fabrication technologies, such as three-dimensional printers, open …
Sexual Orientation-Based Microaggressions And Cannabis Use Outcomes Among Sexual Minority Individuals: The Impact Of Negative Affect And Coping-Motivated Cannabis Use, Evan M. Threeton, Paige E. Morris, Julia D. Buckner
Sexual Orientation-Based Microaggressions And Cannabis Use Outcomes Among Sexual Minority Individuals: The Impact Of Negative Affect And Coping-Motivated Cannabis Use, Evan M. Threeton, Paige E. Morris, Julia D. Buckner
Faculty Publications
Introduction: Sexual minority individuals report significantly more cannabis use and problems than their heterosexual peers, possibly due to their frequent experiences with sexual orientation-based microaggressions. As a result, sexual minority individuals may turn to cannabis use to cope with the negative affect associated with these experiences. No known studies have tested this hypothesis; therefore, the current study tested if sexual orientation microaggressions are positively associated with negative affect (anxiety and depression), cannabis coping motives, and cannabis-related outcomes (frequency, problems); if coping motives are positively associated with cannabis-related outcomes; and if negative affect and cannabis use to cope with negative affect …
Differential Risk: Gender And Racial Differences In The Relationship Between Trauma, Discrimination, And Schizotypy, Mahogany A. Monette, Madisen T. Russell, Danielle B. Abel, Jarrett T. Lewis, Jessica L. Mickens, Evan J. Myers, Megan M. Hricovec, David C. Cicero, J. Wolny, William P. Hetrick, Michael D. Masucci, Alex S. Cohen, Christopher J. Burgin, Thomas R. Kwapil, Kyle S. Minor
Differential Risk: Gender And Racial Differences In The Relationship Between Trauma, Discrimination, And Schizotypy, Mahogany A. Monette, Madisen T. Russell, Danielle B. Abel, Jarrett T. Lewis, Jessica L. Mickens, Evan J. Myers, Megan M. Hricovec, David C. Cicero, J. Wolny, William P. Hetrick, Michael D. Masucci, Alex S. Cohen, Christopher J. Burgin, Thomas R. Kwapil, Kyle S. Minor
Faculty Publications
Traumatic experiences are associated with increased experiences of positive schizotypy. This may be especially important for People of Color, who experience higher rates of trauma and racial discrimination. No study to date has examined how racial disparities in traumatic experiences may impact schizotypy. Furthermore, of the studies that have examined the relationship between trauma and schizotypy, none have examined racial discrimination as a potential moderator. The present study examined if racial discrimination moderates the relationship between trauma and multidimensional (positive, negative, and disorganized) schizotypy. In a sample of 770 college students, we conducted chi-squared analyses, analyses of variance, and stepwise …
Health Service Utilization In Adolescents Following A First Arrest: The Role Of Antisocial Behavior, Callous-Unemotional Traits, And Juvenile Justice System Processing, Julianne S. Speck, Paul J. Frick, Erin P. Vaughan, Toni M. Walker, Emily L. Robertson, James V. Ray, Tina D.Wall Myers, Laura C. Thornton, Laurence Steinberg, Elizabeth Cauffman
Health Service Utilization In Adolescents Following A First Arrest: The Role Of Antisocial Behavior, Callous-Unemotional Traits, And Juvenile Justice System Processing, Julianne S. Speck, Paul J. Frick, Erin P. Vaughan, Toni M. Walker, Emily L. Robertson, James V. Ray, Tina D.Wall Myers, Laura C. Thornton, Laurence Steinberg, Elizabeth Cauffman
Faculty Publications
Previous research indicates that youth exhibiting antisocial behavior are at risk for utilizing a disproportionate amount of health services compared to youth without these problems. The present study investigates whether being processed by the juvenile justice system and showing callous-unemotional (CU) traits independently predict health service utilization (medical and mental health service use and out-of-home placement) over and above the severity of antisocial behavior across adolescence. A total of 766 participants who had been arrested for the first time in adolescence provided data at ten appointments over a period of seven years. Results showed that self-reported antisocial behavior at the …
Increasing Duration Of Heatwaves Poses A Threat To Oyster Sustainability In The Gulf Of Mexico, Jeffrey D. Plumlee, Sean P. Powers, David L. Kimbro, John C. Lehrter, Jason Herrmann, John Mareska
Increasing Duration Of Heatwaves Poses A Threat To Oyster Sustainability In The Gulf Of Mexico, Jeffrey D. Plumlee, Sean P. Powers, David L. Kimbro, John C. Lehrter, Jason Herrmann, John Mareska
Faculty Publications
The future of the wild oyster fishery in the northern Gulf of Mexico is largely uncertain due to changing environmental conditions and declining abundance of harvestable oysters. Specifically, rising temperatures can directly impact the physiological thresholds of the eastern oyster (Crassostrea virginica) at all life history stages and alter the narrow ecological niche this oyster occupies. The impact of rising temperatures is likely most pronounced during atmospheric heatwaves, defined as three or more days above the 90th percentile of daily maximum air temperatures, which have been shown to be increasing in frequency. Increasing exposure to high temperature extremes may contribute …
Transitioning From A Research Protocol To A Scalable Applied Pathway For Xenopus Laevis Sperm Cryopreservation At A National Stock Center: The Effect Of Cryoprotectants, Lucía Arregui, Jack C. Koch, Terrence R. Tiersch
Transitioning From A Research Protocol To A Scalable Applied Pathway For Xenopus Laevis Sperm Cryopreservation At A National Stock Center: The Effect Of Cryoprotectants, Lucía Arregui, Jack C. Koch, Terrence R. Tiersch
Faculty Publications
Sperm cryopreservation is a critical tool for safeguarding and managing valuable genetic resources. Protocols for cryopreservation of Xenopus laevis sperm were available but lacking sperm quality evaluation and scalability and the outcomes were inconsistent. The goal of this study was to begin developing a center-level cryopreservation pathway for this species by integrating French straws as containers that would facilitate germplasm repository development. The objectives were to analyze the effect of: (1) three sperm concentrations (33, 50, and 100 × 106 sperm/mL) on post-thaw fertilization, (2) three final concentrations (2.5%, 5%, and 10%) of dimethyl sulfoxide, methanol, and dimethylformamide (DMFA) on …
Energy Compensation For Crop Growth Under Plastic Mulching: Theories, Models, And Limitations, Dianyuan Ding, Ting Li, Lihong Wu, Xi Zhang, Ying Zhao, Hao Feng, Chao Zhang, Ole Wendroth
Energy Compensation For Crop Growth Under Plastic Mulching: Theories, Models, And Limitations, Dianyuan Ding, Ting Li, Lihong Wu, Xi Zhang, Ying Zhao, Hao Feng, Chao Zhang, Ole Wendroth
Faculty Publications
Plastic film mulching (PM) is a useful agronomic means to adapt to the environmental conditions of dryland agriculture and improve crop production. To improve the theoretical framework of PM technology, this study focuses on the interaction between the soil temperature change caused by PM and crop growth. The definition, action mechanism, and simulation of the compensatory effect of PM on growing degree days are introduced to reveal the effect of soil temperature under PM on crop development and growth. Our summary shows that the strength of the warming effect changes with the growth and development of crops, strengthening during the …
Song And Genetic Divergence Within A Subspecies Of White-Crowned Sparrow (Zonotrichia Leucophrys Nuttalli), Amy Rongyan Luo, Sara Lipshutz, Jennifer Phillips, Robb T. Brumfield, Elizabeth Perrault Derryberry
Song And Genetic Divergence Within A Subspecies Of White-Crowned Sparrow (Zonotrichia Leucophrys Nuttalli), Amy Rongyan Luo, Sara Lipshutz, Jennifer Phillips, Robb T. Brumfield, Elizabeth Perrault Derryberry
Faculty Publications
Animal culture evolves alongside genomes, and the two modes of inheritance-culture and genes-interact in myriad ways. For example, stable geographic variation in culture can act as a reproductive barrier, thereby facilitating genetic divergence between "cultural populations."White-crowned sparrows (Zonotrichia leucophrys) are a well-established model species for bird song learning and cultural evolution, as they have distinct, geographically discrete, and culturally transmitted song types (i.e., song dialects). In this study, we tested the hypothesis that divergence between culturally transmitted songs drives genetic divergence within Nuttall's white-crowned sparrows (Z. l. nuttalli). In accordance with sexual selection theory, we hypothesized that cultural divergence between …
The Cospar Planetary Protection Policy For Missions To Icy Worlds: A Review Of History, Current Scientific Knowledge, And Future Directions, P. T. Doran, A. Hayes, O. Grasset, A. Coustenis, O. Prieto-Ballesteros, N. Hedman, O. Al Shehhi, E. Ammannito, M. Fujimoto, F. Groen, J. E. Moores, C. Mustin, K. Olsson-Francis, J. Peng, K. Praveenkumar, P. Rettberg, S. Sinibaldi, V. Ilyin, F. Raulin, Y. Suzuki, K. Xu, L. G. Whyte, M. Zaitsev, J. Buffo, G. Kminek, B. Schmidt
The Cospar Planetary Protection Policy For Missions To Icy Worlds: A Review Of History, Current Scientific Knowledge, And Future Directions, P. T. Doran, A. Hayes, O. Grasset, A. Coustenis, O. Prieto-Ballesteros, N. Hedman, O. Al Shehhi, E. Ammannito, M. Fujimoto, F. Groen, J. E. Moores, C. Mustin, K. Olsson-Francis, J. Peng, K. Praveenkumar, P. Rettberg, S. Sinibaldi, V. Ilyin, F. Raulin, Y. Suzuki, K. Xu, L. G. Whyte, M. Zaitsev, J. Buffo, G. Kminek, B. Schmidt
Faculty Publications
Recent discoveries related to the habitability and astrobiological relevance of the outer Solar System have expanded our understanding of where and how life may have originated. As a result, the Icy Worlds of the outer Solar System have become among the highest priority targets for future spacecraft missions dedicated to astrobiology-focused and/or direct life detection objectives. This, in turn, has led to a renewed interest in planetary protection concerns and policies for the exploration of these worlds and has been a topic of discussion within the COSPAR (Committee on Space Research) Panel on Planetary Protection. This paper summarizes the results …
Multiband Analyses Of The Bright Grb 230812b And The Associated Sn2023pel, T. Hussenot-Desenonges, T. Wouters, N. Guessoum, I. Abdi, A. Abulwfa, C. Adami, J. F. Agüí Fernández, T. Ahumada, V. Aivazyan, D. Akl, S. Anand, C. M. Andrade, S. Antier, S. A. Ata, P. D'Avanzo, Y. A. Azzam, A. Baransky, S. Basa, M. Blazek, P. Bendjoya, S. Beradze, P. Boumis, M. Bremer, R. Brivio, V. Buat, M. Bulla, O. Burkhonov, E. Burns, S. B. Cenko, M. W. Coughlin, W. Corradi, F. Daigne, T. Dietrich
Multiband Analyses Of The Bright Grb 230812b And The Associated Sn2023pel, T. Hussenot-Desenonges, T. Wouters, N. Guessoum, I. Abdi, A. Abulwfa, C. Adami, J. F. Agüí Fernández, T. Ahumada, V. Aivazyan, D. Akl, S. Anand, C. M. Andrade, S. Antier, S. A. Ata, P. D'Avanzo, Y. A. Azzam, A. Baransky, S. Basa, M. Blazek, P. Bendjoya, S. Beradze, P. Boumis, M. Bremer, R. Brivio, V. Buat, M. Bulla, O. Burkhonov, E. Burns, S. B. Cenko, M. W. Coughlin, W. Corradi, F. Daigne, T. Dietrich
Faculty Publications
GRB 230812B is a bright and relatively nearby (z = 0.36) long gamma-ray burst (GRB) that has generated significant interest in the community and has thus been observed over the entire electromagnetic spectrum. We report over 80 observations in X-ray, ultraviolet, optical, infrared, and submillimetre bands from the GRANDMA (Global Rapid Advanced Network for Multimessenger Addicts) network of observatories and from observational partners. Adding complementary data from the literature, we then derive essential physical parameters associated with the ejecta and external properties (i.e. the geometry and environment) of the GRB and compare with other analyses of this event. We spectroscopically …
Mergers Of Double Nss With One High-Spin Component: Brighter Kilonovae And Fallback Accretion, Weaker Gravitational Waves, S. Rosswog, P. Diener, F. Torsello, T. M. Tauris, N. Sarin
Mergers Of Double Nss With One High-Spin Component: Brighter Kilonovae And Fallback Accretion, Weaker Gravitational Waves, S. Rosswog, P. Diener, F. Torsello, T. M. Tauris, N. Sarin
Faculty Publications
Neutron star (NS) mergers where both stars have negligible spins are commonly considered as the most likely 'standard' case. In globular clusters, however, the majority of NSs have been spun up to millisecond (ms) periods and, based on observed systems, we estimate that a non-negligible fraction of all double NS mergers () contains one component with a spin of a (few) ms. We use the Lagrangian numerical relativity code SPHINCS_BSSN to simulate mergers where one star has no spin and the other has a dimensionless spin parameter of χ = 0.5. Such mergers exhibit several distinct signatures compared to irrotational …
The Lsu-Argonne Conversion Electron Spectrometer: A New Detector For The X-Array And Saturn Decay Station, S. Lopez-Caceres, S. T. Marley, M. P. Carpenter, G. Savard, F. G. Kondev, P. Copp, W. Reviol, C. Müller-Gatermann, D. Seweryniak, J. A. Clark, D. Santiago-Gonzalez, G. E. Morgan, A. J. Mitchell, G. L. Wilson, M. L. Smith
The Lsu-Argonne Conversion Electron Spectrometer: A New Detector For The X-Array And Saturn Decay Station, S. Lopez-Caceres, S. T. Marley, M. P. Carpenter, G. Savard, F. G. Kondev, P. Copp, W. Reviol, C. Müller-Gatermann, D. Seweryniak, J. A. Clark, D. Santiago-Gonzalez, G. E. Morgan, A. J. Mitchell, G. L. Wilson, M. L. Smith
Faculty Publications
A new conversion electron detector has been commissioned at the ATLAS/ CARIBU facility at Argonne National Laboratory. The LSU-Argonne Conversion Electron Spectrometer (LACES) is a LN2-cooled Si(Li) detector system designed to be incorporated into a decay station that comprises the dedicated HPGe clover array with a box geometry (X-Array) and the Scintillator and Tape Using Radioactive Nuclei (SATURN) device. This integration enables simultaneous measurements of conversion electrons and gamma-rays in decay experiments, yielding novel information on transition multipolarities, electric monopole transitions, and isomeric states that decay mostly via conversion electrons. A measurement of the energy resolution of LACES yielded 2.3-keV …