Digital Commons Network^™

Working While Mothering During The Pandemic And Beyond, Nicole Buonocore Porter

Faculty Publications

Although combining work and family has never been easy for women, working while mothering during the pandemic was close to impossible. When COVID-19 caused most workplaces to shut down, many women were laid off. But many women were forced to work from home alongside their children, who could not attend daycare or school. Mothers tried valiantly to combine a full day’s work on top of caring for young children and helping school-aged children with remote school. But many found this balance difficult, leading to women’s lowest workforce participation rate in over forty years. And even women who did not quit …

An Adaptive Data-Driven Controller For Underwater Manipulators With Variable Payload, Ignacio Carlucho, Dylan W. Stephens, Corina Barbalata

Faculty Publications

The underwater environment poses a complex problem for developing control systems for underwater manipulators. Modeling the system is a complicated and costly process due to the highly nonlinear dynamics and the presence of unknown hydrodynamical effects. Furthermore, manipulators are usually deployed on Autonomous Underwater Vehicles (AUVs) which further influence and change the dynamics of the arm. This is aggravated in underwater operations where manipulating different objects is necessary. These diverse manipulation tasks introduce external disturbances to the system and can lead to a fast degradation of the control system performance. In this article, we propose a novel adaptive controller for …

Bilateral Privacy-Utility Tradeoff In Spectrum Sharing Systems: A Game-Theoretic Approach, Mengmeng Liu, Xiangwei Zhou, Mingxuan Sun

Faculty Publications

In spectrum sharing systems based on spectrum trading, user locations are vital for the efficiency of dynamic channel reuse. However, both primary users (PUs) and secondary users (SUs) undertake the risk of location information leakage: a malicious PU may illegally collect SUs' location information to manipulate market decisions; a malicious SU would threat a PU's operational privacy by inferring the PU's location through seemingly inoffensive queries. To protect both PUs' and SUs' location information in spectrum trading, a bilateral privacy preservation framework is introduced in this paper. A game-theoretic approach based on the Stackelberg model is proposed to achieve the …

The Effects Of Ceria Loading On Three-Way Catalysts For Passive Scr Operation, Calvin R. Thomas, Josh A. Pihl, Vitaly Y. Prikhodko, Michelle K. Kidder, Jochen A. Lauterbach, Todd J. Toops

Faculty Publications

Passive SCR systems, which employ both a three-way catalyst and SCR catalyst, are effective for the reduction of nitrogen oxide (NOx) emissions from lean burn gasoline engines. However, questions remain regarding the effect of three-way catalyst formulations on their performance in these systems. Here, Pd/CeOx/Al2O3 catalysts with variable CeOx loading were synthesized, characterized, and evaluated to determine the effects of CeOx on catalyst performance. While a small amount of ceria was beneficial for promoting essential reactions, excess ceria was detrimental due to the increase in oxygen storage capacity. Additionally, insights into potential reaction pathways for NH3 production were determined.

Online-Delivered Group And Personal Exercise Programs To Support Low Active Older Adults' Mental Health During The Covid-19 Pandemic: Randomized Controlled Trial, Mark R. Beauchamp, Ryan M. Hulteen, Geralyn R. Ruissen, Yan Liu, Ryan E. Rhodes, Colin M. Wierts, Katrina J. Waldhauser, Samantha H. Harden, Eli Puterman

Faculty Publications

Background: In response to the COVID-19 pandemic, experts in mental health science emphasized the importance of developing and evaluating approaches to support and maintain the mental health of older adults.

Objective: The aim of this study was to assess whether a group-based exercise program relative to a personal exercise program (both delivered online) and waitlist control (WLC) can improve the psychological health of previously low active older adults during the early stages of the COVID-19 pandemic.

Methods: The Seniors COVID-19 Pandemic and Exercise (SCOPE) trial was a 3-arm, parallel randomized controlled trial conducted between May and September 2020 in which …

Mitochondrial Genome Of Geomydoecus Aurei, A Pocket-Gopher Louse, Theresa A. Spradling, Alexandra C. Place, Ashley L. Campbell, James W. Demastes

Faculty Publications

Parasitic lice demonstrate an unusual array of mitochondrial genome architectures and gene arrangements. We characterized the mitochondrial genome of Geomydoecus aurei, a chewing louse (Phthiraptera: Trichodectidae) found on pocket gophers (Rodentia: Geomyidae) using reads from both Illumina and Oxford Nanopore sequencing coupled with PCR, cloning, and Sanger sequencing to verify structure and arrangement for each chromosome. The genome consisted of 12 circular mitochondrial chromosomes ranging in size from 1,318 to 2,088 nucleotides (nt). Total genome size was 19,015 nt. All 37 genes typical of metazoans (2 rRNA genes, 22 tRNA genes, and 13 protein-coding genes) were present. An average …

Exploring How Exposure To Truth And State-Sponsored Anti-Tobacco Media Campaigns Affect Smoking Disparities Among Young Adults Using A National Longitudinal Dataset, 2002-2017, David C. Colston, Yanmei Xie, Jim Thrasher Ph.D.,Ma. Ms, Sherry Emery, Megan E. Patrick, Andrea R. Titus, Micheal R. Elliot, Nancy L. Fleischer

Faculty Publications

Background. Little is known regarding long-term impacts of anti-tobacco media campaigns on youth smoking and related disparities in the United States. Methods. We examined longitudinal cohort data from Monitoring the Future (MTF) between 2000 and 2017 in modified Poisson regression models to understand the long-term impacts of televised Truth and state-sponsored ad campaign exposure at baseline (age 18) on first cigarette and daily smoking initiation 1 to 2 years later (at modal ages 19/20). We also used additive interactions to test for potential effect modification between campaign exposure and smoking outcomes by sex, race/ethnicity, and parental educational attainment. Results. We …

Knowledge, Attitude, And Practice Of Orthopedic Manual Physical Therapists Toward Lifestyle Screening And Education: A Descriptive Study, Jillian M. Zollinger, Sozina Katuli

Faculty Publications

Introduction. Lifestyle-focused rehabilitation plans need to become part of the standard system of care for the treatment of chronic diseases. To achieve this goal, the KAP of rehabilitation professionals toward lifestyle medicine needs to be understood. This study investigated the niche of orthopedic manual physical therapy and is purposed as a foundational model for continued research. Method. A survey instrument was designed to investigate the KAP of orthopedic manual physical therapists toward lifestyle screening and education. Results. There were 155 participants of which 58.1-72.3% reported frequently talking to their patients about lifestyle topics, while 78.1-80.6% felt highly confident and competent …

Addressing Sustainable Rural Development With Shared Value: A Peruvian Model From The Cacao Industry, Armando Borda, Oswaldo Morales, Hildy J. Teegen, Gareth H. Rees, Maria Alejandra Gonzalez-Perez

Faculty Publications

Here we present a model aimed at contributing to the literature around sustainable supply chains by examining a novel redesign initiative of the chocolate supply chain within the Peruvian cacao (cocoa) industry. Using the Creating Shared Value (CSV) framework, we apply the case study method in examining the Peruvian Cacao Alliance's experience in redesigning both the stages and relationships within its supply of cacao to the world. Data were collected from both primary and secondary sources and analyzed after coding from categories defined in the literature on CSV. The case demonstrates the opportunity to successfully participate in the supply chains …

Spoken Word Learning In Children With Developmental Language Disorder Or Dyslexia, Suzanne M. Adlof, Lauren S. Baron, Bethany A. Bell, Joanna Scoggins

Faculty Publications

Purpose Word learning difficulties have been documented in multiple studies involving children with dyslexia and developmental language disorder (DLD; see also specific language impairment). However, no previous studies have directly contrasted word learning in these two frequently co-occurring disorders. We examined word learning in second-grade students with DLD-only and dyslexia-only as compared to each other, peers with both disorders (DLD + dyslexia), and peers with typical development. We hypothesized that children with dyslexia-only and DLD-only would show differences in word learning due to differences in their core language strengths and weaknesses. Method Children ( = 244) were taught eight novel …

Medication Adherence Reminder System For Virtual Home Assistants: Mixed Methods Evaluation Study, Cythnia F. Corbett, Elizabeth M. Combs, Peyton S. Chandarana, Isabel Stringfellow, Karen Worthy, Thien Nguyen, Pamela J. Wright Phd, Ms, Med, Rn, Cen, Jason M. O'Kane

Faculty Publications

Background: Medication nonadherence is a global public health challenge that results in suboptimal health outcomes and increases health care costs. Forgetting to take medicines is one of the most common reasons for unintentional medication nonadherence. Research findings indicate that voice-activated virtual home assistants, such as Amazon Echo and Google Home devices, may be useful in promoting medication adherence.

Objective: This study aims to create a medication adherence app (skill), MedBuddy, for Amazon Echo devices and measure the use, usability, and usefulness of this medication-taking reminder skill.

Methods: A single-group, mixed methods, cohort feasibility study was conducted with women who took …

It Takes A Village, Andrea Luxton

Faculty Publications

No abstract provided.

Leveraging Natural Resources Toward Resilience: Outreach, Restoration, And Monitoring For A Resilient Nh Coast, Alyson Eberhardt, David M. Burdick, Gregg E. Moore

Faculty Publications

Both sound science and meaningful community engagement are critical to creating resilient coastlines given that important natural resources and high population densities coexist in these areas. Salt marshes and sand dunes provide important benefits to the people who live near them, such as mitigating flood impacts, when the condition of the ecosystem is robust enough to support such functions. To enhance the ability of these systems to perform ecosystem services, the goals of this project were to 1. Empower landowners to sustainably manage their own property to support coastal ecosystems and the benefits they provide, 2. Restore eroded sand dunes …

An Operational Overview Of The Export Processes In The Ocean From Remote Sensing (Exports) Northeast Pacific Field Deployment, David A. Siegel, Ivona Cetinić, Jason R. Graff, Craig M. Lee, Norman Nelson, Mary Jane Perry, Inia Soto Ramos, Deborah K. Steinberg, Ken Buesseler, Roberta Hamme, Andrea J. Fassbender, David Nicholson, Melissa M. Omand, Marie Robert, Andrew Thompson, Vinicius Amaral, Michael Behrenfeld, Claudia Benitez-Nelson, Kelsey Bisson, Emmanuel Boss, Philip W. Boyd, Mark Brzezinski, Kristen Buck

Faculty Publications

The goal of the EXport Processes in the Ocean from RemoTe Sensing (EXPORTS) field campaign is to develop a predictive understanding of the export, fate, and carbon cycle impacts of global ocean net primary production. To accomplish this goal, observations of export flux pathways, plankton community composition, food web processes, and optical, physical, and biogeochemical (BGC) properties are needed over a range of ecosystem states. Here we introduce the first EXPORTS field deployment to Ocean Station Papa in the Northeast Pacific Ocean during summer of 2018, providing context for other papers in this special collection. The experiment was conducted with …

Cognitive Complaints In Age-Related Chronic Conditions: A Systematic Review, Nikki L. Hill, Sakshi Bhargava, Monique J. Brown, Hyejin Kim, Iris Bhang, Kaitlyn Mullin, Kathleen Phillips, Jacqueline Mogle

Faculty Publications

Introduction

Cognitive complaints in older adults may be indicative of progressive cognitive decline including Alzheimer’s disease (AD), but also occur in other age-related chronic conditions, complicating identification of early AD symptoms. To better understand cognitive complaints in aging, we systematically reviewed the evidence to determine their prevalence and characterization among older adults with the most common age-related chronic conditions.

Methods

This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement and the review protocol was prospectively registered with PROSPERO (ID: CRD42020153147). Searches were conducted in PubMed, CINAHL, PsycINFO, Web of Science, and …

An Operational Overview Of The Export Processes In The Ocean From Remote Sensing (Exports) Northeast Pacific Field Deployment, David A. Siegel, Ivona Cetinic, Jason R. Graff, Craig M. Lee, Norman Nelson, Mary Jane Perry, Inia Soto Ramos, Deborah K. Steinberg, Ken Buesseler, Roberta Hamme, Andrea J. Fassbender, David Nicholson, Melissa M. Omand, Marie Robert, Andrew Thompson, Vinicius Amaral, Michael Behrenfeld, Claudia R. Benitez-Nelson, Kelsey Bisson, Emmanuel Boss, Et. Al.

Faculty Publications

The goal of the EXport Processes in the Ocean from RemoTe Sensing (EXPORTS) field campaign is to develop a predictive understanding of the export, fate, and carbon cycle impacts of global ocean net primary production. To accomplish this goal, observations of export flux pathways, plankton community composition, food web processes, and optical, physical, and biogeochemical (BGC) properties are needed over a range of ecosystem states. Here we introduce the first EXPORTS field deployment to Ocean Station Papa in the Northeast Pacific Ocean during summer of 2018, providing context for other papers in this special collection. The experiment was conducted with …

Memory Reduction Using A Ring Abstraction Over Gpu Rdma For Distributed Quantum Monte Carlo Solver, Weile Wei, Eduardo D'Azevedo, Kevin Huck, Arghya Chatterjee, Oscar Hernandez, Hartmut Kaiser

Faculty Publications

Scientific applications that run on leadership computing facilities often face the challenge of being unable to fit leading science cases onto accelerator devices due to memory constraints (memory-bound applications). In this work, the authors studied one such US Department of Energy mission-critical condensed matter physics application, Dynamical Cluster Approximation (DCA++), and this paper discusses how device memory-bound challenges were successfully reduced by proposing an effective "all-to-all"communication method - -a ring communication algorithm. This implementation takes advantage of acceleration on GPUs and remote direct memory access (RDMA) for fast data exchange between GPUs. Additionally, the ring algorithm was optimized with sub-ring …

A Meta-Level Approach For Multilingual Taint Analysis, Damian Lyons, Dino Becaj

Faculty Publications

It is increasingly common for software developers to leverage the features and ease-of-use of different languages in building software systems. Nonetheless, interaction between different languages has proven to be a source of software engineering concerns. Existing static analysis tools handle the software engineering concerns of monolingual software but there is little general work for multilingual systems despite the increasing visibility of these systems. While recent work in this area has greatly extended the scope of multilingual static analysis systems, the focus has still been on a primary, host language interacting with subsidiary, guest language functions. In this paper we propose …

Modernizing Capacity Doctrine, Lisa V. Martin

Faculty Publications

Federal capacity doctrine—or the rules establishing whether and how children’s civil litigation proceeds—has largely remained the same for more than a century. It continues to presume that all children are incapable of directing their own cases, and that adults must litigate on children’s behalf. But since that time, our understanding of children, and of adolescents in particular, has significantly evolved. This Article contends that it is well beyond time to modernize the capacity doctrine to better account for the capabilities of adolescents and support their transition to adulthood.

Phylogenomic Analyses Reveal Non-Monophyly Of The Antbird Genera Herpsilochmus And Sakesphorus (Thamnophilidae), With Description Of A New Genus For Herpsilochmus Sellowi, G A. Bravo, B M. Whitney, R Belmonte-Lopes, M R. Bornschein, G A. Bravo, R Beco, J Battilana, L N. Naka, A Aleixo, M R. Pie, L F. Silveira, E P. Derryberry, R T. Brumfield

Faculty Publications

The family Thamnophilidae is a species-rich Neotropical radiation of passerine birds. Current classification of its 235 species is mostly based on morphological similarities, but recent studies integrating comprehensive phenotypic and phylogenetic data have redefined taxonomic limits of several taxa. Here, we assess generic relationships of Herpsilochmus, Sakesphorus, Thamnophilus, Biatas, and Dysithamnus using DNA sequences from the mitochondrion, nuclear exons, and ultraconserved elements, with further attention to interspecific relationships within Herpsilochmus. We show that Herpsilochmus and Sakesphorus are not monophyletic. We resolve Herpsilochmus sellowi as a deep-branch sister to the monotypic genus Biatas and Sakesphorus cristatus as sister to a clade …

Observation Of Gravitational Waves From Two Neutron Star-Black Hole Coalescences, R. Abbott, T. D. Abbott, S. Abraham, F. Acernese, K. Ackley, A. Adams, C. Adams, R. X. Adhikari, V. B. Adya, C. Affeldt, D. Agarwal, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, T. Akutsu, K. M. Aleman, G. Allen, A. Allocca, P. A. Altin, A. Amato, S. Anand, A. Ananyeva, S. B. Anderson, W. G. Anderson, M. Ando, S. V. Angelova, S. Ansoldi, J. M. Antelis, S. Antier

Faculty Publications

We report the observation of gravitational waves from two compact binary coalescences in LIGO's and Virgo's third observing run with properties consistent with neutron star-black hole (NSBH) binaries. The two events are named GW200105_162426 and GW200115_042309, abbreviated as GW200105 and GW200115; the first was observed by LIGO Livingston and Virgo and the second by all three LIGO-Virgo detectors. The source of GW200105 has component masses, whereas the source of GW200115 has component masses and (all measurements quoted at the 90% credible level). The probability that the secondary's mass is below the maximal mass of a neutron star is 89%-96% and …

Ligo Detector Characterization In The Second And Third Observing Runs, D. Davis, J. S. Areeda, B. K. Berger, R. Bruntz, A. Effler, R. C. Essick, R. P. Fisher, P. Godwin, E. Goetz, A. F. Helmling-Cornell, B. Hughey, E. Katsavounidis, A. P. Lundgren, D. M. Macleod, Z. Márka, T. J. Massinger, A. Matas, J. Mciver, G. Mo, K. Mogushi, P. Nguyen, L. K. Nuttall, R. M.S. Schofield, D. H. Shoemaker, S. Soni, A. L. Stuver, A. L. Urban, G. Valdes, M. Walker, R. Abbott, C. Adams, R. X. Adhikari, A. Ananyeva, S. Appert, K. Arai, Y. Asali, S. M. Aston, C. Austin, A. M. Baer, M. Ball, S. W. Ballmer, S. Banagiri, D. Barker, C. Barschaw, L. Barsotti, J. Bartlett, J. Betzwieser, R. Beda, D. Bhattacharjee, J. Bidler, G. Billingsley, S. Biscans, J. Bidler, G. Billingsley, S. Biscans, C. D. Blair, R. M. Blair, N. Bode, P. Booker, R. Bork, A. Bramley, A. F. Brooks, D. D. Brown, A. Buikema, C. Cahillane, T. A. Callister, G. Caneva Santoro, K. C. Cannon, J. Carlin, K. Chandra, X. Chen, N. Christensen, A. A. Ciobanu, F. Clara, C. M. Compton, S. J. Cooper, K. R. Corley, M. W. Coughlin, S. T. Countryman, P. B. Covas, D. C. Coyne, S. G. Crowder, T. Dal Canton, B. Danila, L. E. H. Datrier, G. S. Davies, T. Dent, N. A. Didio, C. Di Fronzo, K. L. Dooley, J. C. Driggers, P. Dupej, S. E. Dwyer, T. Etzel, M. Evans, T. M. Evans, S. Fairhurst, J. Feicht, A. Fernandez-Galiana, R. Frey, P. Fritschel, V. V. Frolov, P. Fulda, M. Fyffe, B. U. Gadre, J. A. Giaime, K. D. Giardina, G. Gonzalez, S. Gras, C. Gray, A. C. Green, A. Gupta, E. K. Gustafson, R. Gustafson, J. Hanks, J. Hanson, T. Hardwick, I. W. Harry, R. K. Hasskew, M. C. Heintze, J. Heinzel, N. A. Holland, I. J. Hollows, C. G. Hoy, S. Hughey, S. P. Jadhav, K. Janssens, G. Johns, J. D. Jones, S. Kandhasamy, S. Karki, M. Kasprzak, K. Kawabe, D. Keitel, N. Kijbuchoo, Y. M. Kim, P. J. King, J. S. Kissel, S. Kulkarni, R. Kumar, M. Landry, B. B. Lane, B. Lantz, M. Laxen, Y. K. Lecoeuche, J. Leviton, J. Liu, M. Lormand, R. Macas, A. Macedo, M. Macinnis, V. Mandic, G. L. Mansell, S. Marka, B. Martinez, K. Martinovic, D. V. Martynov, K. Mason, F. Matichard, N. Mavalvala, R. Mccarthy, D. E. Mcclelland, S. Mccormick, L. Mcculler, C. Mcisaac, T. Mcrae, G. Mendell, K. Merfeld, E. L. Merilh, P. M. Meyers, F. Meylahn, I. Michaloliakos, H. Middleton, J. C. Mills, T. Mistry, R. Mittleman, G. Moreno, C. M. Mow- Lowry, S. Mozzon, L. Mueller, N. Mukund, A. Mullavey, J. Muth, T. J. N. Nelson, A. Neunzert, S. Nichols, E. Nitoglia, J. Oberling, J. J. Oh, S. H. Oh, R. J. Oram, R. G. Ormiston, N. Ormsby, C. Osthelder, D. J. Ottaway, H. Overmier, A. Pai, J. R. Palamos, F. Pannarale, W. Parker, O. Patane, M. Patel, E. Payne, A. Pele, R. Penhorwood, C. J. Perez, K. S. Phukon, M. Pillas, M. Pirello, H. Radkins, K. E. Ramirez, J. W. Richardson, K. Riles, K. Rink, N. A. Robertson, J. G. Rollins, C. L. Romel, J. H. Romie, M. P. Ross, K. Ryan, T. Sadecki, M. Sakellariadou, E. J. Sanchez, L. E. Sanchez, L. Sandles, T. R. Saravanan, R. L. Savage, D. Schaetzl, R. Schnabel, E. Schwartz, D. Sellers, T. Shaffer, D. Sigg, A. M. Sintes, B. J. J. Slagmolen, J. R. Smith, K. Soni, B. Sorazu, A. P. Spencer, K. A. Strain, D. Strom, L. Sun, M. J. Szczepanczyk, J. Tasson, R. Tenorio, M. Thomas, P. Thomas, K. A. Thorne, K. Toland, C. I. Torrie, A. Tran, G. Traylor, M. Trevor, M. Tse, G. Vajente, N. Van Remortel, D. C. Vander-Hyde, A. Vargas, J. Veitch, P. J. Veitch, K. Venkateswara, G. Venugopalan, A. D. Viets, V. Villa-Ortega, T. Vo, C. Vorvick, M. Wade, G. S. Wallace, R. L. Ward, J. Warner, B. Weaver, A. J. Weinstein, R. Weiss, K. Wette, D. D. White, L. V. White, C. Whittle, A. R. Williamson, B. Willke, C. C. Wipf, L. Xiao, R. Xu, H. Yamamoto, H. Yu, H. Yu, L. Zhang, Y. Zheng, M. E. Zucker, J. Zweizig

Faculty Publications

The characterization of the Advanced LIGO detectors in the second and third observing runs has increased the sensitivity of the instruments, allowing for a higher number of detectable gravitational-wave signals, and provided confirmation of all observed gravitational-wave events. In this work, we present the methods used to characterize the LIGO detectors and curate the publicly available datasets, including the LIGO strain data and data quality products. We describe the essential role of these datasets in LIGO–Virgo Collaboration analyses of gravitational-waves from both transient and persistent sources and include details on the provenance of these datasets in order to support analyses …

Comparative Antennal Morphometry And Sensilla Organization In The Reproductive And Non-Reproductive Castes Of The Formosan Subterranean Termite, Paula Castillo, Nathan Le, Qian Sun

Faculty Publications

Antennae are the primary sensory organs in insects, where a variety of sensilla are distributed for the perception of the chemical environment. In eusocial insects, colony function is main-tained by a division of labor between reproductive and non-reproductive castes, and chemosensation is essential for regulating their specialized social activities. Several social species in Hymenoptera display caste-specific characteristics in antennal morphology and diversity of sensilla, reflecting their differential tasks. In termites, however, little is known about how the division of labor is associated with chemosensory morphology among castes. Using light and scanning electron microscopy, we performed antennal morphometry and characterized the …

Effects Of Age, Phase Variation And Pheromones On Male Sperm Storage In The Desert Locust, Schistocerca Gregaria, Satoshi Hiroyoshi, Takayuki Mitsunaga, Tomoko Ganaha-Kikumura, Gadi V.P. Reddy

Faculty Publications

In general, sperm produced in the testis are moved into the seminal vesicle via the vas deferens in insects, where they are stored. How this sperm movement is controlled is less well understood in locusts or grasshoppers. In this study, the effects of age, phase variation and pheromones on male sperm storage were investigated in the desert locust, Schistocerca gregaria (Forskål). In this locust, a pair of ducts, the vasa deferentia, connect the testes to a pair of the long, slender seminal vesicles that are folded approximately thirty times, and where the sperm are stored. We found that phase variation …

Octo-Tiger: A New, 3d Hydrodynamic Code For Stellar Mergers That Uses Hpx Parallelization, Dominic C. Marcello, Sagiv Shiber, Orsola De Marco, Juhan Frank, Geoffrey C. Clayton, Patrick M. Motl, Patrick Diehl, Hartmut Kaiser

Faculty Publications

OCTO-TIGER is an astrophysics code to simulate the evolution of self-gravitating and rotating systems of arbitrary geometry based on the fast multipole method, using adaptive mesh refinement. OCTO-TIGER is currently optimized to simulate the merger of well-resolved stars that can be approximated by barotropic structures, such as white dwarfs (WDs) or main-sequence stars. The gravity solver conserves angular momentum to machine precision, thanks to a 'correction' algorithm. This code uses firx parallelization, allowing the overlap of work and communication and leading to excellent scaling properties, allowing for the computation of large problems in reasonable wall-clock times. In this paper, we …

Variation In Soil-Test-Based Phosphorus And Potassium Rate Recommendations Across The Southern Usa, Hailin Zhang, Joao Antonangelo, John Grove, Deanna Osmond, Nathan A. Slaton, Shannon Alford, Robert Florence, Gobena Huluka, David Herring Hardy, Jason Lessl, Rory Maguire, Rao Mylavarapu, J. Larry Oldham, Eugenia M. Pena-Yewtukhiw, Tony Provin, Leticia Sonon, David Sotomayor, Jim Wang

Faculty Publications

Thirteen states associated with the Southern Extension and Research Activities Information Exchange Group-6 (SERA-IEG-6) agreed to share their soil test based P and K rate recommendations for nine major crops. The objectives were to compare fertilizer P and K rate recommendations, to look for opportunities to rationalize similar recommendations across state lines, and to examine challenges to the development of a cooperative regional approach to P and K recommendations. Mehlich-3 (eight states), Mehlich-1 (five states), or Lancaster (one state) extractions were the basis of plant available soil P (STP) and K (STK) assessment. Fertilizer recommendation philosophies (sufficiency, build and maintain, …

Individual Quality And Phenology Mediate The Effect Of Radioactive Contamination On Body Temperature In Chernobyl Barn Swallows, Zbyszek Boratynski, Timothy A. Mousseau, Anders Pape Moller

Faculty Publications

Anthropogenic stressors, such as radioactive contaminants released from the Chernobyl and Fukushima Daiichi accidents, deteriorate ecological and evolutionary processes, as evidence for damaging effects of radioactive contamination on wildlife is accumulating. Yet little is known about physiological traits of animals inhabiting contaminated areas, and how those are affected by individual quality and phenology. We investigated variation in body temperature of wild barn swallows, Hirundo rustica, exposed to radioactive contamination from the Chernobyl accident in Ukraine and Belarus. We tested whether exposure to variable levels of radioactive contamination modified core body temperature of birds, and whether individual and phenological characteristics modulated …

Perspective: The Importance Of Water Security For Ensuring Food Security, Good Nutrition, And Well-Being, Sera L. Young, Edward A. Frongillo Jr., Zeina Jamaluddine, Hugo Melgar-Quiñonez, Rafael Pérez-Escamilla, Claudia Ringler, Asher Y. Rosinger

Faculty Publications

Water security is a powerful concept that is still in its early days in the field of nutrition. Given the prevalence and severity of water issues and the many interconnections between water and nutrition, we argue that water security deserves attention commensurate with its importance to human nutrition and health. To this end, we first give a brief introduction to water insecurity and discuss its conceptualization in terms of availability, access, use, and stability. We then lay out the empirical grounding for its assessment. Parallels to the food-security literature are drawn throughout, both because the concepts are analogous and food …

Resuspension, Redistribution, And Deposition Of Oil-Residues To Offshore Depocenters After The Deepwater Horizon Oil Spill, Arne R. Diercks, Isabel C. Romero, Rebekka A. Larson, Patrick Schwing, Austin Harris, Samantha Bosman, Jeffrey P. Chanton, Gregg Brooks

Faculty Publications

The focus of this study was to determine the long-term fate of oil-residues from the 2010 Deepwater Horizon (DwH) oil spill due to remobilization, transport, and re-distribution of oil residue contaminated sediments to down-slope depocenters following initial deposition on the seafloor. We characterized hydrocarbon residues, bulk sediment organic matter, ease of resuspension, sedimentology, and accumulation rates to define distribution patterns in a 14,300 km2 area southeast of the DwH wellhead (1,500 to 2,600 m water depth). Oil-residues from the DwH were detected at low concentrations in 62% of the studied sites at specific sediment layers, denoting episodic deposition of oil-residues …

Strategic Human Resource Management And Covid-19: Emerging Challenges And Research Opportunities, David G. Collings, John Mcmackin, Anthony Nyberg, Patrick M. Wright

Faculty Publications

No abstract provided.