Tag: Halmos College of Arts and Sciences

In December of 2020, Halmos College faculty member Aarti Raja, Ph.D., co-organized the annual Tiny Earth symposium with researchers from around the U.S. The event had 212 attendees, representing 32 academic institutions from the US and around the world. Faculty members Aarti Raja, Ph.D. and Julie Torruellas Garcia, Ph.D., attended the virtual Tiny Earth International Conference, which was run from the Wisconsin Institute of Discovery, Madison, WI. Raja moderated several sessions at the conference. Raja’s students Aysha Patel and Vijay Patel collaborated with NSU University school and presented a poster and talk along with a 11th grade USchool student Dhruv Krishna titled “Bacteria Unearthed”. Garcia mentored Chloe Barreto-Massad, a 9th grade student at the American Heritage School, in her research project entitled, “Using antiSMASH to Compare Antimicrobial Genes of Commensal E. coli (Normal Flora) to Pathogenic E. coli”, which was also presented at the symposium.

Tiny Earth was launched in 2018, however it began six years earlier when Jo Handelsman (former Associate Director for Science at the White House Office of Science and Technology Policy under President Obama) founded a course—then called “Microbes to Molecules”—at Yale University with the goal of addressing both the antibiotic crisis and the shortage of science trainees. In short order, the course grew and became a part of a larger initiative until Handelsman returned to the University of Wisconsin-Madison and launched Tiny Earth in collaboration with its hundreds of partners worldwide.

 

Recently, Halmos College faculty member Richard H. Perry, Ph.D. authored a research article entitled, “Theoretical study of the adsorption of analgesic environmental pollutants on pristine and nitrogen-doped graphene nanosheets”. A member of the Department of Chemistry and Physics,  his article was published in the journal Physical Chemistry Chemical Physics.

The article’s abstract states: “Interactions of the analgesic medications dextropropoxyphene (DPP, opioid), paracetamol (PCL, nonnarcotic), tramadol (TDL, nonnarcotic), ibuprofen (IBN, nonsteroidal anti-inflammatory drug (NSAID)), and naproxen (NPX, NSAID) with pristine graphene (GN) and nitrogen-doped GN (NGN; containing only graphitic N atoms) nanosheets were explored using density functional theory (DFT) in the gas and aqueous phases. Calculations in the aqueous phase were performed using the integral equation formalism polarized continuum model (IEFPCM). Calculated geometry-optimized structures, partial atomic charges (determined using Natural Bond Orbital analysis), highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) energy gaps, work functions (determined using time-dependent DFT), and molecular electrostatic potential plots showed that the adsorption process is physical in nature (viz. physisorption), primarily due to noncovalent π–π and van der Waals interactions. In addition, calculated adsorption energies (ΔE_ad) were exergonic, indicating that formation of the analgesic/GN and analgesic/NGN complexes is thermodynamically favorable in the gas (ΔE_ad values for analgesic/GN and analgesic/NGN were in the range of −66.56 kJ mol⁻¹ to −106.78 kJ mol⁻¹) and aqueous phases (ΔE_ad values for analgesic/GN and analgesic/NGN complexes were in the range of −58.75 kJ mol⁻¹ to −100.46 kJ mol⁻¹). Generally, for GN and NGN, adsorption was more endergonic in the aqueous phase by as much as +10.41 kJ mol⁻¹. Calculated solvation energies (ΔE_solvation) were exergonic for all analgesic/GN complexes (ΔE_solvation values were in the range of −56.50 kJ mol⁻¹ to −66.17 kJ mol⁻¹) and analgesic/NGN complexes (ΔE_solvation values were in the range of −77.26 kJ mol⁻¹ to −87.96 kJ mol⁻¹), with analgesic/NGN complexes exhibiting greater stability in aqueous solutions (∼20 kJ mol⁻¹ more stable). In summary, the results of this theoretical study demonstrate that the adsorption and solvation of analgesics on GN and NGN nanosheets is thermodynamically favorable. In addition, generally, analgesic/NGN complexes exhibit higher adsorption affinities and solvation energies in the gas and aqueous phases. Therefore, GN and NGN nanosheets are potential adsorbents for extracting analgesic contaminants from aqueous environments such as aquatic ecosystems.”

 Citation: Richard H. Perry *, Phys. Chem. Chem. Phys. DOI: https://doi.org/10.1039/D0CP05543C

 

This winter, Halmos College faculty member Bernhard Riegl, Ph.D. published a book entitled, “Population Dynamics of the Reef Crisis”. The ongoing coral reef crisis is beyond debate and is evidenced in an extensive body of research studies. Severe declines of biodiversity, along with fears of a sixth mass extinction, have not only occurred in coral reefs during the past few decades, but also in virtually all major ecosystems on Planet Earth.

The book is dedicated to Halmos Dean emeritus Richard E. Dodge, Ph.D. in recognition of his impact on coral reef research as scientist, teacher, mentor, administrator and friend.

The chair of the Department of Marine and Environmental Sciences, Dr. Riegl edited this book which includes NSU alumni contributors Brandon Brule; David Gilliam, Ph.D.; Elizabeth Goergen, Ph.D.; Matthew Johnston, Ph.D. and fellow Halmos faculty member Joshua Feingold, Ph.D. The book is published by Academic Press, an Elsevier Imprint, under its series Advances in Marine Biology.

Judith McKay, J.D., Ph.D., Ph.D., faculty in the Department of Conflict Resolution Studies (DCRS) in the Halmos College of Arts and Sciences and the Guy Harvey Oceanographic Research Center (HCAS) gave a presentation at the 2020 Florida Dispute Resolution Center Annual Conference. The conference was held virtually, and the theme was “Promoting Problem Solving.”

McKay’s presentation was entitled, ““Intimate Partner and Family Violence: Research and Impact on Mediation.”

McKay is the faculty advisor to the Social Justice Roundtable and works with students in the community through Community Resolution Services, a practicum and volunteer site for DCRS. CRS hosts Story Café, We Love our Families series, The Women’s Roundtable, and is involved in offering workshops and other events for community groups and organizations. Her scholarly interests include conflict coaching, mediation, strategic community planning, and prevention and intervention in family violence.

 

This fall, Halmos faculty member Mark Jaffe, DPM, MHSA presented a Zoom seminar entitled. “Peripheral Arterial Disease (PAD): The Lower Extremity Sibling of Coronary Artery Disease (CAD) and Cerebrovascular Disease (CVD)”. Jaffe discussed how P.A.D. develops slowly over many years. In the early stages, most people with PAD. have no symptoms. He talked to the group as to how only one out of three people with PAD actually feel there is something wrong with their feet or legs. By that time, their arteries may be so clogged that they are not getting enough oxygen to their leg muscles. This one hour seminar was followed by an engaging 30-minute Q&A period.

The Lifelong Learning Institute (LLI) is longstanding at Nova Southeastern University (NSU). Founded in 1977, the LLI serves lifelong learning passions of retired adults. The LLI, which is a center within the College of Osteopathic Medicine, is located on NSU’s Fort Lauderdale East Campus. The LLI was founded to complete the NSU dream of education spanning a whole lifetime, from preschool to older-adult learning.

Alexia Georgakopoulos, Ph.D., faculty in the Department of Conflict Resolution Studies (DCRS) in the Halmos College of Arts and Sciences and the Guy Harvey Oceanographic Research Center (HCAS) gave a presentation at the Florida Dispute Resolution Center Annual Conference in August. The conference was held virtually, and the theme was “Promoting Problem Solving.” Georgopoulos co-presented with Harold Coleman, Jr., Esq., and Rebecca Storrow, Ph.D. Their presentation was entitled, “Walking the Tight Rope in Mediation: The Art of Balancing Evaluation Techniques.”

Georgakopoulos is the faculty advisor to the Conflict Resolution Community of Practice Working Group in DCRS. Her teaching and research interests include mediation, facilitation, and workplace bullying. She is also the Director of the Institute of Conflict Resolution and Communication, a mediation, training, and consulting firm. Storrow is a graduate of the doctoral program in DCRS. She is the Commercial Vice President, Miami Office, of the American Arbitration Association.