Digital Commons Network^™

Cooperative Target Tracking In Balanced Circular And Elliptical Formations, Lili Ma, Naira Hovakimyan

Publications and Research

This paper extends our earlier results on cooperative target tracking in cyclic pursuit using a group of mobile robots by further prescribing the formation radius and achieving an elliptical formation pattern. Prescribing the formation radius of a balanced circular formation is achieved by adjusting a parameter in the existing control input to each robot. The new elliptical formation pattern is obtained via a transformation matrix. Both single-integrator and double-integrator robot models are considered. The effectiveness of the proposed schemes is demonstrated by simulation examples.

Fantastic Borderlands And Masonic Meta-Religion In Rudyard Kipling’S “The Man Who Would Be King”, Lucas Kwong

Publications and Research

This article examines Kipling’s The Man Who Would Be King” through the lens of Freemasonry’s interreligious ideology. In British India, members of “The Craft” offered what scholar James Laine calls a meta-religion, a fraternity whose emphasis on interreligious tolerance masks power relations between colonizers and colonized. When he became a Freemason, Kipling’s lifelong fascination with India’s religious diversity translated into enthusiasm for the sect’s unifying aspirations. In this context, “The Man Who Would Be King” stands out for how sharply it contests that enthusiasm. The story’s Masonic protagonists determine to find glory and riches in Kafiristan, a borderland region known …

Market Integration And Soil-Transmitted Helminth Infection Among The Shuar Of Amazonian Ecuador, Theresa E. Gildner, Tara J. Cepon-Robins, Melissa A. Liebert, Samuel S. Urlacher, Joshua M. Schrock, Christopher J. Harrington, Felicia C. Madimenos, J. Josh Snodgrass, Lawrence S. Sugiyama

Publications and Research

Background

Soil-transmitted helminth (STH) infections have many negative health outcomes (e.g., diarrhea, nutritional deficiencies) that can also exacerbate poverty. These infections are generally highest among low-income populations, many of which are also undergoing market integration (MI; increased participation in a market-based economy). Yet the direct impact of MI-related social and environmental changes on STH infection patterns is poorly understood, making it unclear which lifestyle factors should be targeted to better control disease spread. This cross-sectional study examines if household infrastructure associated with greater MI is associated with lower STH burdens among Indigenous Ecuadorian Shuar.

Methods

Visually Evoked Responses Are Enhanced When Engaging In A Video Game, Jason J. Ki, Lucas C. Parra, Jacek P. Dmochowski

Publications and Research

While it is well known that vision guides movement, less appreciated is that the motor cortex also provides input to the visual system. Here, we asked whether neural processing of visual stimuli is acutely modulated during motor activity, hypothesizing that visual evoked responses are enhanced when engaged in a motor task that depends on the visual stimulus. To test this, we told participants that their brain activity was controlling a video game that was in fact the playback of a prerecorded game. The deception, which was effective in half of participants, aimed to engage the motor system while avoiding evoked …

Learning And Teaching Online During Covid‑19: Experiences Of Student Teachers In An Early Childhood Education Practicum, Jinyoung Kim

Publications and Research

Online learning is an educational process which takes place over the Internet as a form of distance education. Distance education became ubiquitous as a result of theCOVID-19 pandemic during 2020. Because of these circumstances, online teach-ing and learning had an indispensable role in early childhood education programs, even though debates continue on whether or not it is beneficial for young children to be exposed extensively to Information and Communication Technology (ICT).This descriptive study demonstrates how a preservice teacher education course in early childhood education was redesigned to provide student teachers with opportunities to learn and teach online. It reports experiences …

Neurological Symptoms Due To Coronavirus Disease 2019, Farage Ftiha, Moshe Shalom, Henry Jradeh

Publications and Research

In this review, we focus on summarizing everything that is known about the neurological effects of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-COV-2). It has been shown that Coronavirus Disease 2019 (Covid-19) may result in neuromuscular disorders or damage to nerves outside of the brain and spinal cord, which may lead to weakness, numbness, and pain. Published literature has stated that SARS-COV-1 may infect the central nervous system and due to its similarities to SARS-COV-2, we suspect that SARS-COV-2 has the same potential. We conclude that Covid-19 has neurological manifestations. Further research should be done in this field to understand …

Are Responses To The Pandemic Inclusive? A Rapid Virtual Audit Of Covid-19 Press Briefings In Lmics, Jaclyn Yap, Vandana Chaudhry, Chandan Kumar Jha, Subha Mani, Sophie Mitra

Publications and Research

Responses to the COVID-19 pandemic may leave many people behind through a variety of exclusion processes as basic information about the virus and its spread is shared with the public. We conduct a rapid virtual audit of pandemic related press briefings and press conferences issued by governments and international organizations in order to assess if responses have been inclusive to the hearing-impaired communities in low- and middle-income countries (LMICs). We analyze COVID-19 press conferences and press briefings issued during Feb–May 2020, for over 123 LMICs and for international organizations (e.g. the World Bank, the International Monetary Fund, the World Health …

The Covid-19 Spring And The Expendability Of Guestworkers, Ismael Garcia-Colon

Publications and Research

No abstract provided.

Pricing Climate Change Risk In Corporate Bonds, Elsa Allman

Publications and Research

This paper examines whether corporate bondholders price climate change risk. I find that firms exposed to higher sea level rise (SLR) across U.S. branch locations pay a premium when issuing bonds. Specifically, a one standard deviation increase in a firm’s SLR exposure is associated with a 2% increase of average yield spreads equivalent to 4 basis points. This effect is more pronounced for firms in industries vulnerable to extreme weather conditions, which are less spatially diversified, and issuing bonds with maturities ranging from 5 to 10 years. In addition, I find no evidence that credit rating agencies account for SLR …

‘Wars Of Others’: National Cleavages And Attitudes Toward External Conflicts, Efe Tokdemir, Seden Akcinaroglu, H. Ege Ozen, Ekrem Karakoc

Publications and Research

Why do individuals sympathize with others’ wars, an antecedent of the decision to become a foreign fighter? By collecting original public opinion data from Lebanon, in 2015, and Turkey in 2017, about the actors of conflict in Syria, we test the argument that an ethno-religious cleavage at home shapes the proclivity of individuals to support others’ wars. Individuals may perceive a war abroad as endangering political and social balance of power at home – and hence own survival. Therefore, when transnational identities map onto a national cleavage, as in the Sunni–Shia cleavage in Lebanon, and Turk – Kurd cleavage in …

Neuroinvasion, Neurotropic, And Neuroinflammatory Events Of Sars-Cov-2: Understanding The Neurological Manifestations In Covid-19 Patients, Yassine Yachou, Abdeslem El Idrissi, Vladimir Belapasov, Said Ait Benali

Publications and Research

Respiratory viruses are opportunistic pathogens that infect the upper respiratory tract in humans and cause severe illnesses, especially in vulnerable populations. Some viruses have neuroinvasive properties and activate the immune response in the brain.These immune events may be neuroprotective or they may cause long-term damage similar to what is seen in some neurodegenerative diseases. The new “Severe Acute Respiratory Syndrome Coronavirus 2” (SARS-CoV-2) is one of the Respiratory viruses causing highly acute lethal pneumonia coronavirus disease 2019 (COVID-19) with clinical similarities to those reported in “Severe Acute Respiratory Syndrome Coronavirus” (SARS-CoV) and the “Middle East Respiratory SyndromeCoronavirus” (MERS-CoV) including neurological …

Artificial Intelligence And Game Theory Controlled Autonomous Uav Swarms, Janusz Kusyk, M. Umit Uyar, Kelvin Ma, Eltan Samoylov, Ricardo Valdez, Joseph Plishka, Sagor E. Hoque, Giorgio Bertoli, Jefrey Boksiner

Publications and Research

Autonomous unmanned aerial vehicles (UAVs) operating as a swarm can be deployed in austere environments, where cyber electromagnetic activities often require speedy and dynamic adjustments to swarm operations. Use of central controllers, UAV synchronization mechanisms or pre-planned set of actions to control a swarm in such deployments would hinder its ability to deliver expected services. We introduce artificial intelligence and game theory based flight control algorithms to be run by each autonomous UAV to determine its actions in near real-time, while relying only on local spatial, temporal and electromagnetic (EM) information. Each UAV using our flight control algorithms positions itself …

A Citation Analysis About Scholarship On Zines, Anne Hays

Publications and Research

INTRODUCTION Zine scholarship is a relatively new academic field that has emerged since the late 1990’s. Now that two decades have passed since the publication of Stephen Duncombe’s seminal text, Notes From Underground, it is possible to take a landscape view of how and why zine scholars have studied zines in peer-reviewed journal publications. Knowing how scholars have studied zines can teach us about how zines and zine culture have contributed to academic knowledge. We can also learn which subjects are understudied as zine scholars continue to investigate these curious ephemeral print objects. METHODS This study uses citation analysis …

Evolutionary Algorithms Converge Towards Evolved Biological Photonic Structures, Mamadou Aliou Barry, Vincent Berthier, Bobo D. Wilts, Marie-Claire Cambourieux, Pauline Bennet, Rémi Pollès, Olivier Teytaud, Emmanuel Centeno, Nicolas Biais, Antoine Moreau

Publications and Research

Nature features a plethora of extraordinary photonic architectures that have been optimized through natural evolution in order to more efciently refect, absorb or scatter light. While numerical optimization is increasingly and successfully used in photonics, it has yet to replicate any of these complex naturally occurring structures. Using evolutionary algorithms inspired by natural evolution and performing particular optimizations (maximize refection for a given wavelength, for a broad range of wavelength or maximize the scattering of light), we have retrieved the most stereotypical natural photonic structures. Whether those structures are Bragg mirrors, chirped dielectric mirrors or the gratings on top of …

Beyond Columbus: An Italian American Wake Up Call, Fred L. Gardaphé

Publications and Research

This article discusses the relationship between Italian American culture and the celebration of Columbus Day in the United States.

Test–Retest Reliability Of The One- Repetition Maximum (1rm) Strength Assessment: A Systematic Review, Jozo Grgic, Bruno Lazinica, Brad J. Schoenfeld, Zeljko Pedisic

Publications and Research

Background: The test–retest reliability of the one-repetition maximum (1RM) test varies across different studies. Given the inconsistent findings, it is unclear what the true reliability of the 1RM test is, and to what extent it is affected by measurement-related factors, such as exercise selection for the test, the number of familiarization trials and resistance training experience.

Objectives: The aim of this paper was to review studies that investigated the reliability of the 1RM test of muscular strength and summarize their findings.

Methods: The PRISMA guidelines were followed for this systematic review. Searches for studies were conducted through eight databases. Studies …

Reducing Gun Violence In New York City, Jeffrey A. Butts, Sheyla A. Delgado

Publications and Research

Most large American cities experienced falling client crime rates in recent decades, with New York City only being second to San Diego is the scale of its decline. This databit looks at the array of initiatives the city implemented to address gun violence as a possible contribution to the decline.

Documenting Latinx Communities: Podcasting And Oral History In The Time Of Covid-19, Nelson Santana

Publications and Research

Living through a worldwide pandemic is not easy. As of June 22, 2020, more than 8.8 million cases have been confirmed and more than 465,700 people have died from COVID-19. Oral narratives are powerful tools that for audiences paint a picture of that person’s perception of an event, especially since it is the narrative of the interviewee’s unique lived experience that is captured. This paper discusses the early stages of an oral history project that documents COVID-19 through the lens of Latinx communities.

Spatiotemporal Genetic Diversity Of Lions Reveals The Influence Of Habitat Fragmentation Across Africa, Caitlin J. Curry, Brian W. Davis, Laura D. Bertola, Paula A. White, William J. Murphy, James N. Derr

Publications and Research

Direct comparisons between historical and contemporary populations allow for detecting changes in genetic diversity through time and assessment of the impact of habitat fragmentation. Here, we determined the genetic architecture of both historical and modern lions to document changes in genetic diversity over the last century. We surveyed microsatellite and mitochondrial genome variation from 143 high-quality museum specimens of known provenance, allowing us to directly compare this information with data from several recently published nuclear and mitochondrial studies. Our results provide evidence for male-mediated gene flow and recent isolation of local subpopulations, likely due to habitat fragmentation. Nuclear markers showed …

Globe Observer Data: 2016–2019, Helen M. Amos, Matthew J. Starke, Tina M. Rogerson, Marilé Colón Robles, Travis Anderson, Rebecca Boger, Brian A. Campbell, Russanne D. Low, Peder Nelson, David Overoye, Jessica E. Taylor, Kristen L. Weaver, Trena M. Ferrell, Holli Kohl, Theresa G. Schwerin

Publications and Research

This technical report summarizes the GLOBE Observer data set from 1 April 2016 to 1 December 2019. GLOBE Observer is an ongoing NASA‐sponsored international citizen science project that is part of the larger Global Learning and Observations to Benefit the Environment (GLOBE) Program, which has been in operation since 1995. GLOBE Observer has the greatest number of participants and geographic coverage of the citizen science projects in the Earth Science Division at NASA. Participants use the GLOBE Observer mobile app (launched in 2016) to collect atmospheric, hydrologic, and terrestrial observations. The app connects participants to satellite observations from Aqua, Terra, …

Thrombospondin-1 Plays An Essential Role In Yes-Associated Protein Nuclear Translocation During The Early Phase Of Trypanosoma Cruzi Infection In Heart Endothelial Cells, Ashutosh Arun, Kayla J. Rayford, Ayorinde Cooley, Girish Rachakonda, Fernando Villalta, Siddharth Pratap, Maria F. Lima, Nader Sheibani, Pius N. Nde

Publications and Research

The protozoan parasite Trypanosoma cruzi is the causative agent of Chagas disease. This neglected tropical disease causes severe morbidity and mortality in endemic regions. About 30% of T. cruzi infected individuals will present with cardiac complications. Invasive trypomastigotes released from infected cells can be carried in the vascular endothelial system to infect neighboring and distant cells. During the process of cellular infection, the parasite induces host cells, to increase the levels of host thrombospondin-1 (TSP-1), to facilitate the process of infection. TSP-1 plays important roles in the functioning of vascular cells, including vascular endothelial cells with important implications in cardiovascular …

Coverage Of The 2019 Eastern Equine Encephalitis Virus Outbreak On News Media, Corey H. Basch, Joseph Fera, Christie Jaime, Nasia Quininoes

Publications and Research

Background: The media plays as an important role in delivering information about emergent issues, such as the Eastern equine encephalitis virus (EEEV) outbreak of 2019. As such, there has been an increase in news coverage of vector-borne disease coverage due to a rise in emerging or re-emerging arboviruses.

Methods: The purpose of this study was to describe the content of news clips related to the recent (2019) EEEV outbreak in the United States.

Results: Only 3 of the important topics identified were mentioned in a majority of the 110 videos analyzed. These topics were, mosquito mentioned as transmitter, prevention by …

Olfaction Modulates Inter-Subject Correlation Of Neural Responses, Paul Deguzman, Anshul Jain, Matthias H. Tabert, Lucas C. Parra

Publications and Research

Odors can be powerful stimulants. It is well-established that odors provide strong cues for recall of locations, people and events. The effects of specific scents on other cognitive functions are less well-established. We hypothesized that scents with different odor qualities will have a different effect on attention. To assess attention, we used Inter-Subject Correlation of the EEG because this metric is strongly modulated by attentional engagement with natural audiovisual stimuli.We predicted that scents known to be “energizing” would increase Inter-Subject Correlation during watching of videos as compared to “calming” scents. In a first experiment, we confirmed this for eucalyptol and …

Inhibition Of Hdac1/2 Along With Trap1 Causes Synthetic Lethality In Glioblastoma Model Systems, Trang T. T. Nguyen, Yiru Zhang, Enyuan Shang, Chang Shu, Catarina M. Quinzii, Mike-Andrew Westhoff, Georg Karpel-Massler, Markus D. Siegelin

Publications and Research

The heterogeneity of glioblastomas, the most common primary malignant brain tumor, remains a significant challenge for the treatment of these devastating tumors. Therefore, novel combination treatments are warranted. Here, we showed that the combined inhibition of TRAP1 by gamitrinib and histone deacetylases (HDAC1/HDAC2) through romidepsin or panobinostat caused synergistic growth reduction of established and patient-derived xenograft (PDX) glioblastoma cells. This was accompanied by enhanced cell death with features of apoptosis and activation of caspases. The combination treatment modulated the levels of pro- and anti-apoptotic Bcl-2 family members, including BIM and Noxa, Mcl-1, Bcl-2 and Bcl-xL. Silencing of Noxa, BAK and …

Consistent Failure To Produce A Cognitive Load Effect In Visual Working Memory Using A Standard Dual-Task Procedure, Timothy J. Ricker, Evie Vergauwe

Publications and Research

Working memory performance is impaired when an attention-demanding task is executed during memory retention. The cognitive load effect is the consistent finding that the size of the memory impairment is determined by the relative amount of time that the secondary processing task occupies attention during memory retention. Cognitive load has been proposed to be a Priority-A benchmark any model of working memory should be able to explain (Oberauer et al., 2018), in part because the effect appears to generalize across different experimental procedures and materials. Using a standard dual-task procedure, we detail four experiments using a visual working memory recall …

Mapping Gadolinium Contrast In A Complex Ionic And Photosynthesis Environment Of Pineapple By Near-Infrared And X-Ray Imaging, Subhendra Sarkar, Zoya Vinokur, Chen Xu, Tetiana Soloviova, Amina Shahbaz, Aldona Gjoni

Publications and Research

This work explores the diffusivity of a lanthanide complex, Eovist (Gadolinium-Ethoxy Benzyl Diethylenetriamine pentaacetate) that is stable in neutral media but is not in acidic environment. In the current work an acidic fruit model like pineapple that is rich in transition metals was used and a possible transmetallation reaction among Eovist and transition metal complexes was tested using X-ray imaging. Another goal of this work was to perturb the usual and the unusual photosynthesis systems that pineapple has maintained for millions of years during the evolution of circadian genes for efficient water conservation by dark photosynthesis. To detect such photosynthesis …

Morphological And Molecular Characterizationof A New Species Of Black Coral From Elvers Bank, North-Western Gulf Of Mexico (Cnidaria:Anthozoa: Hexacorallia: Antipatharia:Aphanipathidae: Distichopathes), Dennis M. Opresko, Samantha L. Goldman, Raven Johnson, Katherine Parra, Marissa Nuttall, G.P. Schmahl, Mercer R. Brugler

Publications and Research

The continental shelf edge of the NW Gulf of Mexico supports dozens of reefs and banks, including the West and East Flower Garden Banks (FGB) and Stetson Bank that comprise the Flower Garden Banks National Marine Sanctuary (FGBNMS). Discovered by fishermen in the early 1900s, the FGBs are named after the colourful corals, sponges and algae that dominate the region. The reefs and banks are the surface expression of underlying salt domes and provide important habitat for mesophotic coral ecosystems (MCE) and deep coral communities to 300 m depth. Since 2001, FGBNMS research teams have utilized remotely operated vehicles (e.g. …

Lower Practice Effects As A Marker Of Cognitive Performance And Dementia Risk: A Literature Review, Roos J. Jutten, Evan Grandoit, Nancy S. Foldi, Sietske A. M. Sikkes, Richard N. Jones, Seo-Eun Choi, Melissa L. Lamar, Diana K. N. Louden, Joanne Rich, Douglas Tommet, Paul K. Crane, Laura A. Rabin

Publications and Research

Background: Practice effects (PEs) are improvements in performance after repeated exposure to test materials, and typically viewed as a source of bias in repeated cogni- tive assessments. We aimed to determine whether characterizing PEs could also pro- vide a useful marker of early cognitive decline.

Methods: We conducted a systematic review of the literature, searching PsycInfo (Ebsco) and PubMed databases for articles studying PEs in aging and dementia pop- ulations. Articles published between 1920 and 2019 were included.

Result: We identified 259 articles, of which 27 studied PEs as markers of cognitive performance. These studies consistently showed that smaller, less-robust …

Intercultural Rhetoric In The Written Academic Discourse: The Rhetorical Functions Of Citation In English And Spanish By College Students And Expert Writers, David Sánchez-Jiménez

Publications and Research

This research studies the practice of citation in two cultural communities, the American and the Spanish, in an academic setting. The main objective of this research is to determine what are the rhetorical functions of citations in the master’s thesis of 12 American and 12 Spanish students written in their native language, as well as in scientific articles of 12 American and 12 Spanish professional writers in Applied Linguistics, and to identify the differences found among these groups.

To study this pragmalinguistic phenomenon, I used the computational text analysis of the rhetorical functions of citations via the Antconc 3.2.4w concordance …

Pre-Stretching Of The Hamstrings Before Squatting Acutely Increases Biceps Femoris Thickness Without Impairing Exercise Performance, Thiago Barbosa Trindade, Leônidas Oliveira Neto, José Claudino Neto Pita, Vagner Deuel De Oliveira Tavares, Paulo Moreira Silva Dantas, Brad J. Schoenfeld, Jonato Prestes

Publications and Research

Background: Bilateral squat exercise is widely used in resistance training (RT) programs to increase lower limb strength and muscle mass, but this exercise does not result in significant hypertrophy of the hamstrings. It has been speculated that stretching between sets with a certain degree of tension results in muscle hypertrophy, while acute stretching could decrease performance during maximal contractions.

Objective: This study investigated the acute effects of hamstring stretching before bilateral squatting on muscle thickness (MT), electromyography (EMG), and total training volume (TTV) on exercise performance.

Methods: Fourteen resistance-trained young men, with ∼7.5 years of RT experience, performed the 10 …