Digital Commons Network^™

Design Game-Based Learning: Playtesting A Thesis, Micheal Lewis, Kimberly Ramgopal, Cindy Veliz

Publications and Research

Design game-based learning helps students understand interdisciplinary studies as they write a research paper. This presentation explores our use of game design in a team-taught interdisciplinary language and technology general education course. We are students majoring in computer engineering technology, computer systems technology, and construction management and civil engineering technology. Our focus on design allowed us to create tabletop games to playtest our theses and showcase our original ideas.

An Analysis Of Non-Comparison Based Sorting Algorithms, Jacob M. Gomez, Edgar Aponte, Brad Isaacson

Publications and Research

Sorting algorithms put elements of a list into an order (e.g., numerical, alphabetical). Sorting is an important problem because a nontrivial percentage of all computing resources are devoted to sorting all kinds of lists. For our project, we implemented two non-comparison based sorting algorithms from pseudocode and compared them to various comparison based sorting algorithms. The two algorithms have their advantages and disadvantages as well as their unique features. We found that Radix Sort (which is a modified version of Counting Sort) was the most efficient of them all.

Open Lab Vs. Radiologic Students Final Practical Grades, Navdeep Kaur, Safraz Harun, Katie Tam, Robert O'Brien

Publications and Research

Open Lab provides the students of the Radiologic Technology & Medical Imaging Department the opportunity outside regular class time to practice communicating effectively in a health care setting, and grants the students the freedom to craft critical thinking skills in a radiologic environment. Our research aims to analyze the correlation between hourly time spent in Open Lab, and its contributing factor to a student's overall Radiographic Procedures grade. The amount of time spent in Open Lab can additionally contribute to a student's grasp of didactic concepts, and their integration into the clinical setting. Additional time spent in the laboratory can …

Compare How Students Performed And Attendance Before, During, And After Pandemic Waves, Peber Dejesus, Rohini R. Mattan, Ralph Lauren Ocampo

Publications and Research

Covid-19 is a global pandemic that affected many people that includes students from all different parts of the world. In this case, the research would focus on the Radiologic Technology and Medical Imaging program students at New York City College of Technology, who must do hands-on learning in order to accomplish the experience required for the degree.

One of the hardest obstacles that radiologic students must go through are the ones that are unable to be online. One example of those required classes would be the Clinical Rotation. It is mandatory for the radiologic student to go to a required …

Puff Pastry Through Time: Its Evolution & Applications, Thomas Ham

Publications and Research

Puff pastry is a plain laminated dough that is revered to be a versatile ingredient that can easily elevate any dish. At first, this flaky pastry was baked as only cake. Puff pastry has evolved greatly since its creation in 1645. From sweet desserts to savory entrees, puff pastry is ever-present in the industry. Puff pastry is served on its own with minimal flavorings (palmiers), a component of dessert items (napoleons / mille-feuille) or main entrees (beef wellington) enhancing the flavor and texture of the finished dish. The way we eat has drastically changed in recent years, and thus recipes …

Remote Sensing & Land Surface Temperature From Satellite Observations, Isatu Jollah

Publications and Research

The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument is designed and developed in 1995. • It is a critical instrument aboard Terra and Aqua satellites. Terra's orbit around the Earth is timed so that it crosses the equator from north to south in the morning, while Aqua crosses the equator from south to north in the afternoon. • Every 1 to 2 days, Terra MODIS and Aqua MODIS scan the entire Earth's surface, collecting data in groups of wavelengths. • In this research, a whole month of MODIS Land Surface Temperature data from both Aqua and Terra were explored and investigated.

Our Stories, Katelyn S. Lopez

Publications and Research

This semester, we participated in the “Our Stories” qualitative research project that involves learning more about students' first year, and first-semester experiences at City Tech during pandemic times. As we organized and read students’ posts, we journaled and practiced reflexivity, a qualitative research process that helps us examine how we are interpreting the data that we are engaging with. T Reflexivity is a process in qualitative research involving frequent examination of one’s position in the project. These positions include one’s assumptions, feelings, and so forth. An essential question for qualitative researchers, according to Leavy (2011), is “Has the researcher engaged …

Biometal Distribution And Diffusion: Contrast Resolution By Low Energy Mammography Versus High Spatial Resolution By Computed Tomography, Guito Charles, Robert O’Brien, Areeba Masroor

Publications and Research

Low energy X-rays from a Mammography system were used to capture small differences in inherent tissue contrast in two-dimensional images of cut samples of select fruit and vegetable models avoiding excessive volume averaging. High spatial resolution CT images were also acquired of whole fruits to avoid volume averaging to help detect low tissue contrast. A limitation of CT imaging is the high kVp unavoidable in CT that lowers tissue contrast while the advantages are that of non-invasive 3D visualization. Using these two approaches that are very different in physical principles it is not known if either one could display possible …

Ferrate Vi: An Environmentally Friendly Oxidant For Water Treatment, Le Van La, Vishwas Joshi

Publications and Research

Water contamination is a common problem all over the world. Safe drinking water, sanitation, and hygiene are crucial to human health and well-being. Some of the common water purification methods are sedimentation or settling, boiling/distillation, chemical treatment, disinfection, and filtration. Chlorine and its compounds can kill waterborne bacteria and viruses, and they are used as disinfectants in water treatment. However, some of their byproducts can cause harmful health effects. The higher oxidation state of iron i.e., Ferrate (VI) possesses relatively higher redox potential as compared to other commonly used oxidants (chlorine dioxide, iodine, bromide, ozone), in water treatment. Further, Ferrate …

The Energy Challenge: Moving From Fossil Fuels To Biofuels, Hydrogen, And Green Energy Sources, Aneeza Hussain, Afrina S. Nishat

Publications and Research

The aim of this literature research is to evaluate and identify alternative sources of energy instead of fossil fuels. Fossil fuels like natural gas, oil, and coal are known as nonrenewable resources because they are finite resources that cannot be readily replenished at the same pace as their consumption. The alternatives that will be searched for in this literature review are specifically, biofuels, hydrogen, and green energy sources which are all known as renewable. The review will then focus on hydrogen as true potential replacement of fossil fuels. In some countries, alternative renewable sources include geothermal energy, nuclear energy, solar …

Exploring Solidworks Simulation And Structural Analysis Tools To Predict Real-World Physical Behaviors, Itay Rubin

Publications and Research

Computer Aided Design (CAD) Software can optimize the product design process prior to manufacturing. This project examines engineering solutions using CAD software called SolidWorks. It simulates how the product will behave under a variety of engineering constraints. These simulations allow designers to optimize performance, cost, and speed efficiencies. The project uses simulations and finite element analysis to replicate real world behavior. It presents high-level capabilities in the design process, exposing new engineers to simulation tools that are available and relevant in mechanical engineering design. This project required independent research to obtain an advanced understanding of the software interface and capabilities.

Covid-19 Vaccine Mandate, Mikhail Kun, Tatiana Ryzhakova

Publications and Research

The COVID-19 pandemic has wreaked havoc on the planet and killed millions of people. Health care workers and radiology technicians who come into direct contact with COVID-19 patients have indeed been the most affected by the virus. Since the pandemic began, the COVID-19 cases among health care workers have surged and quadrupled. COVID-19 vaccine mandate is the need of the time. Mandates have a history and are in effect for other diseases such as smallpox, measles, or mumps. But since the vaccines have come out for COVID-19, there is a public impetus to condemn these vaccines, based on the false …

Nycha & Arcscholars: Senior Center, Naomi Langer-Voss, Tylee Rivera

Publications and Research

Who are we?

We are a diverse group of scholars ranging in age, gender, and background from all over New York City. We share a common interest in solving our urban challenges through studying and proposing improvements to the built environment. From professors at CUNY CITY TECH to NYCHA Design & Implementation specialists and NYCHA residents, we encompass a group of scholars united by this common purpose.

What are we here to accomplish?

This team of ARCscholars is working collaboratively, sharing lived experiences, creatively thinking & planning and applying our research discoveries to the proposed design interventions. We seek to …

The Living Breakwaters Pdr Efforts: Conceptual Scheduling, Calvin O. Walters Jr.

Publications and Research

On October 29, 2012, Superstorm Sandy caused nearly $19 billion in damages in New York City including 69,000 residential units across the five boroughs. This disaster precipitated a post-disaster-rebuilding (PDR) project including roughly $4.2 billion in a Community Development Block Grant allocated towards PDR projects. A portion of the grant was used to construct a living breakwater in Tottenville, Staten Island, consisting of a resiliency approach to risk reduction through erosion prevention, wave energy attenuation, and enhancement of ecosystems and social resiliency to improve resistance to storms for the community of Tottenville. The ridges of each breakwater are designed with …

Sociopolitical Determinants Of Health In The Proposed Rezoning Of Richmond Hill/Ozone Park, Ny, Khemraj J. Persaud

Publications and Research

The community of Richmond Hill/Ozone Park, Queens, NY has been split into multiple zones and has needed rezoning for decades. The area consists of a range of people from different ethnic backgrounds, including Indo-Caribbean, South Asian, and Afro-Caribbean. Racial health disparities persist in this district, such as obesity, diabetes, and hypertension. I conducted research about how ongoing political issues in this community has been affecting the overall health of its residents and what is being done about it.

Importin-Mediated Pathological Tau Nuclear Translocation Causes Disruption Of The Nuclear Lamina, Tdp-43 Mislocalization And Cell Death, Robert F. Candia, Leah S. Cohen, Viktoriya Morozova, Christopher Corbo, Alejandra D. Alonso

Publications and Research

Tau is a cytosolic protein that has also been observed in the nucleus, where it has multiple proposed functions that are regulated by phosphorylation. However, the mechanism underlying the nuclear import of tau is unclear, as is the contribution of nuclear tau to the pathology of tauopathies. We have previously generated a pathological form of tau, PH-tau (pseudophosphorylation mutants S199E, T212E, T231E, and S262E) that mimics AD pathological behavior in cells, Drosophila, and a mouse model. Here, we demonstrated that PH-tau translocates into the nucleus of transiently transfected HEK-293 cells, but wildtype tau does not. We identified a putative …

Exploration Of Chemical Space With Partial Labeled Noisy Student Self‑Training And Self‑Supervised Graph Embedding, Yang Liu, Hansaim Lim, Lei Xie

Publications and Research

Background Drug discovery is time-consuming and costly. Machine learning, especially deep learning, shows great potential in quantitative structure–activity relationship (QSAR) modeling to accelerate drug discovery process and reduce its cost. A big challenge in developing robust and generalizable deep learning models for QSAR is the lack of a large amount of data with high-quality and balanced labels. To address this challenge, we developed a self-training method, Partially LAbeled Noisy Student (PLANS), and a novel self-supervised graph embedding, Graph-Isomorphism-Network Fingerprint (GINFP), for chemical compounds representations with substructure information using unlabeled data. The representations can be used for predicting chemical properties such …

Sea Level Rise And Brooklyn’S Jamaica Bay Communities: Storm Surge Barriers And Managed Retreat, Nathan Kensinger

Publications and Research

New York City is a city of water, with more than eight million residents living on its islands, creeks, and wetlands, and over 130 neighborhoods located along its 520 miles of waterfront. New York City is now facing a perilous future, shaped by sea level rise. In the decades ahead, the city will be forced to make difficult decisions, as its waterfront communities are impacted by more frequent storms and devastating floods. At the frontlines of the city’s fight against climate change is Jamaica Bay, an enormous estuary located on New York City’s southeast oceanfront. Dozens of neighborhoods are located …

Dissociative Excitation, Ionization, And Fragmentation Processes For Nitrogen, Oxygen, Methane, And Water Molecules By Electron Bombardment, M. Gochitashvili, R. Lomsazde, D. Kuparashvili, O. Taboridze, Roman Ya. Kezerashvili

Publications and Research

Electron–impact ionization and fragmentation of molecules are investigated by the chromatography mass-spectrometry device. While the excitation processes are investigated by an optical spectroscopy method. The spectral analysis is performed in the vacuum ultraviolet 50-130 nm spectral regions. The absolute value of the fragmentation cross-section in the dissociative ionization and excitation processes is determined. Measurements are performed in the electron energy range 25-120eV for ionization and 200-500eV for excitation processes respectively.

Depression Is Associated With Myocardial Infarction Within A Two-Year Period Among Adults In China, Lydia W. Li, Greta Cheng, Hongwei Xu, Zhenmei Zhang, Jinyu Liu, Yeates Conwell

Publications and Research

We examined whether baseline depression is associated with MI within a two-year period among adults aged 45+ in China and whether the association varies by sociodemographic characteristics. Two-year longitudinal data from a nationally representative sample of people aged 45+ in China were analyzed (N = 15,226). MI within the 2-year period was coded dichotomously. Baseline depression, assessed by the 10-item Center for Epidemiological Studies Depression scale, was used as a dichotomous and a continuous variable. After adjusting for medical conditions, lifestyle and sociodemographic characteristics, the odds of having an MI within the 2-year period were 46% greater for respondents with …

Female Prisoners, Mental Health, And Contact With Family And Friends, Katarzyna Celinska, Irina Fanarraga

Publications and Research

The present study explores the psychological symptoms of 194 female inmates housed in a northeast state prison. Imprisoned women completed Derogatis’ (2001) Brief Symptom Inventory-18 and responded to questions on the frequency of contact with family and friends via phone calls, letters, and visitations. The results showed significant correlations between psychological symptoms and modes of contact. Multiple regression models revealed that certain types of contact with family and friends had a statistically significant impact on the self-reported psychological symptoms of female inmates. Policy implications and recommendations are discussed.

Promoting Healthy Eating In Latin American Restaurants: A Qualitative Survey Of Views Held By Owners And Staff, Fuster, Melissa, Rosa Abreu, Margaret A. Handley, Donald Rose, Michelle A. Rodriguez, Emily G. Dimond, Brian Elbel, Terry T. K. Huang

Publications and Research

Background

Restaurants, particularly independently-owned ones that serve immigrant communities, are important community institutions in the promotion of dietary health. Yet, these restaurants remain under-researched, preventing meaningful collaborations with the public health sector for healthier community food environments. This research aimed to examine levels of acceptability of healthy eating promotion strategies (HEPS) in independently-owned Latin American restaurants (LARs) and identify resource needs for implementing HEPS in LARs.

Methods

We completed semi-structured, online discussions with LAR owners and staff (n = 20), predominantly from New York City (NYC), to examine current engagement, acceptability, potential barriers, and resource needs for the implementation …

A Role For Myosin Ii Clusters And Membrane Energy In Cortex Rupture For Dictyostelium Discoideum, Emmanuel Asante-Asamani, Daniel Grange, Devarshi Rawal, Zully Santiago, John Loustau, Derrick Brazill

Publications and Research

Blebs, pressure driven protrusions of the cell membrane, facilitate the movement of eukaryotic cells such as the soil amoeba Dictyostelium discoideum , white blood cells and cancer cells. Blebs initiate when the cell membrane separates from the underlying cortex. A local rupture of the cortex, has been suggested as a mechanism by which blebs are initiated. However, much clarity is still needed about how cells inherently regulate rupture of the cor- tex in locations where blebs are expected to form. In this work, we examine the role of mem- brane energy and the motor protein myosin II (myosin) in facilitating …

Feasibility Of Using Electronic Health Records For Cascade Monitoring And Cost Estimates In Implementation Science Studies In The Adolescent Trials Network For Hiv/Aids Interventions, Tyra Dark, Kit N. Simpson, Sitaji Gurung, Amy L. Pennar, Marshall Chew, Sylvie Naar

Publications and Research

Background:One of the most difficult areas in the fight against HIV/AIDS is reaching out to youth aged 13 to 24 years. The proportion of youth living with HIV/AIDS on antiretroviral therapy (ART) and who are virally undetectable is low, highlighting significant challenges for reaching the Joint United Nations Program on HIV targets.

Objective:This study aimed to assess the feasibility of obtaining key clinical indicators and monitoring treatment, viral suppression, and retention components of the youth HIV treatment cascade in Adolescent Trials Network for HIV/AIDS Interventions clinics using electronic health record (EHR) downloads and to provide baseline characteristics for the study …

An Oer / Coil Project On "Society And Cross-Cultural Interaction: Verbal And Non-Verbal Communication Across Cultures", Oluremi "Remi" Alapo

Publications and Research

The presenter’s goal is to discuss the research she has developed: an OER [open educational resources] course content and how she co-designed a COIL [collaborative online international learning] partnership course that was used by students in diversity and multicultural education courses which focused on race and ethnicity, how we see things based on several factors, how it influences the choices and decisions we make; how to deal positively with conflicts that inevitably arise in working /living situations with people of diverse cultures.

This course was structured to raise multicultural awareness and fortify students’ social skills in dealing with racial and …

Superfluidity Of Dipolar Excitons In A Double Layer Of Α -T3 With A Mass Term, Oleg L. Berman, Godfrey Gumbs, Gabriel P. Martins, Paula Fekete

Publications and Research

We predict Bose-Einstein condensation and superfluidity of dipolar excitons, formed by electron-hole pairs in spatially separated gapped hexagonal α − T3 (GHAT3) layers. In the α − T3 model, the AB-honeycomb lattice structure is supplemented with C atoms located at the centers of the hexagons in the lattice. We considered the α − T3 model in the presence of a mass term which opens a gap in the energy-dispersive spectrum. The gap opening mass term, caused by a weak magnetic field, plays the role of Zeeman splitting at low magnetic fields for this pseudospin-1 system. The band structure of GHAT3 …

Variation In Compensatory Strategies As A Function Of Target Constriction Degree In Post-Glossectomy Speech, Christina Hagedorn, Yijing Lu, Asterios Toutios, Uttam Sinha, Louis Goldstein, Shrikanth Narayanan

Publications and Research

Individuals who have undergone treatment for oral cancer oftentimes exhibit compensatory behavior in consonant production. This pilot study investigates whether compensatory mechanisms utilized in the production of speech sounds with a given target constriction location vary systematically depending on target manner of articulation. The data reveal that compensatory strategies used to produce target alveolar segments vary systematically as a function of target manner of articulation in subtle yet meaningful ways. When target constriction degree at a particular constriction location cannot be preserved, individuals may leverage their ability to finely modulate constriction degree at multiple constriction locations along the vocal tract.

Eukaryotic Initiation Factor 4f Promotes A Reorientation Of Eukaryotic Initiation Factor 3 Binding On The 5 And The 3 Utrs Of Barley Yellow Dwarf Virus Mrna, Paul Powell, Usha Bhardwaj, Dixie Goss

Publications and Research

Viral mRNAs that lack a 5 m 7 GTP cap and a 3 poly-A tail rely on structural elements in their untranslated regions (UTRs) to form unique RNA-protein complexes that regulate viral translation. Recent studies of the barley yellow dwarf virus (BYDV) have revealed eukaryotic initiation factor 3 (eIF3) plays a significant role in facilitating communication be- tween its 5 and 3 UTRs by binding both UTRs simultaneously. This report uses in vitro translation assays, fluorescence anisotropy binding assays, and selective 2 -hydroxyl acylation analyzed by primer ex-tension (SHAPE) footprinting to identify secondary structures that are selectively interacting with eIF3. …

The Solar-Electric Sail: Application To Interstellar Migration And Consequences For Seti, Gregory Matloff

Publications and Research

The Solar-Electric Sail accelerates by reflecting positively charged solar wind ions. If it is used to propel an interstellar migration mission, its interstellar cruise velocity relative to the home star cannot exceed the solar wind velocity. In an effort to analytically determine interstellar cruise velocity for a 107 kg generation ship, a constant solar wind velocity within the heliosphere of a Sun-like star of 600 km/s is assumed. The solar wind proton density at 1 AU is also considered constant at 10 protons per cubic centimeter. Solar wind density is assumed to decrease with the inverse square of solar distance. …

Acknowledging The Relevance Of Elephant Sensory Perception To Human–Elephant Conflict Mitigation, Robbie Ball, Sarah L. Jacobson, Matthew S. Rudolph, Miranda Trapani, Joshua M. Plotnik

Publications and Research

Elephants are well known for their socio-cognitive abilities and capacity for multi-modal sensory perception and communication. Their highly developed olfactory and acoustic senses provide them with a unique non-visual perspective of their physical and social worlds. The use of these complex sensory signals is important not only for communication between conspecifics, but also for decisions about foraging and navigation. These decisions have grown increasingly risky given the exponential increase in unpredictable anthropogenic change in elephants’ natural habitats. Risk taking often develops from the overlap of human and elephant habitat in Asian and African range countries, where elephants forage for food …