Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

City University of New York (CUNY)

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 1561 - 1590 of 6790

Full-Text Articles in Entire DC Network

Biomedical Informatics Colloquium, Bio 4050, Course Outline, Eugenia G. Giannopoulou May 2021

Biomedical Informatics Colloquium, Bio 4050, Course Outline, Eugenia G. Giannopoulou

Open Educational Resources

A seminar-based course that exposes students to current research topics in the fields of Bioinformatics and Medical Informatics. Weekly presentations by invited speakers and/or faculty introduce students to the broad diversity of research areas in both fields, and engages them in critical thinking and writing. Online lectures and reading activities will be given periodically.


Discovering Kepler’S Third Law From Planetary Data, Boyan Kostadinov, Satyanand Singh May 2021

Discovering Kepler’S Third Law From Planetary Data, Boyan Kostadinov, Satyanand Singh

Publications and Research

In this data-inspired project, we illustrate how Kepler’s Third Law of Planetary Motion can be discovered from fitting a power model to real planetary data obtained from NASA, using regression modeling. The power model can be linearized, thus we can use linear regression to fit the model parameters to the data, but we also show how a non-linear regression can be implemented, using the R programming language. Our work also illustrates how the linear least squares used for fitting the power model can be implemented in Desmos, which could serve as the computational foundation for this project at a lower …


Innovative Virtual Role Play Simulations For Managing Substance Use Conversations: Pilot Study Results And Relevance During And After Covid-19, Glenn Albright, Nikita Khalid, Kristen Shockley, Kelsey Robinson, Kevin Hughes, Bethany Pace-Danley Apr 2021

Innovative Virtual Role Play Simulations For Managing Substance Use Conversations: Pilot Study Results And Relevance During And After Covid-19, Glenn Albright, Nikita Khalid, Kristen Shockley, Kelsey Robinson, Kevin Hughes, Bethany Pace-Danley

Publications and Research

Background: Substance use places a substantial burden on our communities, both economically and socially. In light of COVID-19, it is predicted that as many as 75,000 more people will die from alcohol and other substance use and suicide as a result of isolation, new mental health concerns, and various other stressors related to the pandemic. Public awareness campaigns that aim to destigmatize substance use and help individuals have meaningful conversations with friends, coworkers, or family members to address substance use concerns are a timely and cost-effective means of augmenting existing behavioral health efforts related to substance use. These types of …


Ede 684: Big Ideas Of Science, Steven Azeka Apr 2021

Ede 684: Big Ideas Of Science, Steven Azeka

Open Educational Resources

No abstract provided.


Shedding Light On Dark Patterns: A Case Study On Digital Harms, Noreen Y. Whysel Apr 2021

Shedding Light On Dark Patterns: A Case Study On Digital Harms, Noreen Y. Whysel

Publications and Research

You’ve been there before. You thought you could trust someone with a secret. You thought it would be safe, but found out later that they blabbed to everyone. Or maybe they didn’t share it, but the way they used it felt manipulative. You gave more than you got and it didn’t feel fair. But now that it’s out there, do you even have control anymore?

Ok. Now imagine that person was your supermarket. Or your bank. Or your boss.

As designers of digital spaces for consumer products and services, how often do we consider the relationship we have with our …


Factoring: Difference Of Squares, Thomas Lauria Apr 2021

Factoring: Difference Of Squares, Thomas Lauria

Open Educational Resources

This lesson plan will explain how to factor basic difference of squares problems


Dual-Layer Radio-Transparent Dielectric Core Metasurface Antenna, Diego J. Chachayma-Farfan, Younes Ra'di, Andrea Alù Apr 2021

Dual-Layer Radio-Transparent Dielectric Core Metasurface Antenna, Diego J. Chachayma-Farfan, Younes Ra'di, Andrea Alù

Advanced Science Research Center

Recent advances in communication systems require densely packed integrated antennas, making the system subject to undesired interferences. Cloaking and scattering cancellation using metamaterials have been proposed as interesting routes towards the suppression of antenna blockage and interference in these dense arrays. Although a few attempts have been made in this direction, finding an optimal design that can suppress the mutual scattering and at the same time preserve radiation features remains a challenge. We explore here an approach that enhances the operational bandwidth and improves angular stability of antenna cloaks, realizing effective radio-transparent antennas for communication systems. Recently, we explored the …


Enhanced Nonlinear Interaction Of Polaritons Via Excitonic Rydberg States In Monolayer Wse2, Jie Gu, Valentin Walther, Lutz Waldecker, Daniel Rhodes, Archana Raja, James C. Hone, Tony F. Heinz, Stéphane Kéna-Cohen, Thomas Pohl, Vinod M. Menon Apr 2021

Enhanced Nonlinear Interaction Of Polaritons Via Excitonic Rydberg States In Monolayer Wse2, Jie Gu, Valentin Walther, Lutz Waldecker, Daniel Rhodes, Archana Raja, James C. Hone, Tony F. Heinz, Stéphane Kéna-Cohen, Thomas Pohl, Vinod M. Menon

Publications and Research

Strong optical nonlinearities play a central role in realizing quantum photonic technologies. Exciton-polaritons, which result from the hybridization of material excitations and cavity photons, are an attractive candidate to realize such nonlinearities. While the interaction between ground state excitons generates a notable optical nonlinearity, the strength of such interactions is generally not sufficient to reach the regime of quantum nonlinear optics. Excited states, however, feature enhanced interactions and therefore hold promise for accessing the quantum domain of single-photon nonlinearities. Here we demonstrate the formation of exciton-polaritons using excited excitonic states in monolayer tungsten diselenide (WSe2) embedded in a …


Automated Evolution Of Feature Logging Statement Levels Using Git Histories And Degree Of Interest, Yiming Tang, Allan Spektor, Raffi Khatchadourian, Mehdi Bagherzadeh Apr 2021

Automated Evolution Of Feature Logging Statement Levels Using Git Histories And Degree Of Interest, Yiming Tang, Allan Spektor, Raffi Khatchadourian, Mehdi Bagherzadeh

Publications and Research

Logging—used for system events and security breaches to more informational yet essential aspects of software features—is pervasive. Given the high transactionality of today’s software, logging effectiveness can be reduced by information overload. Log levels help alleviate this problem by correlating a priority to logs that can be later filtered. As software evolves, however, levels of logs documenting surrounding feature implementations may also require modification as features once deemed important may have decreased in urgency and vice-versa. We present an automated approach that assists developers in evolving levels of such (feature) logs. The approach, based on mining Git histories and manipulating …


Human Ace2‑Functionalized Gold “Virus‑Trap” Nanostructures For Accurate Capture Of Sars‑Cov‑2 And Single‑Virus Sers Detection, Yong Yang, Yusi Peng, Chenglong Lin, Li Long, Jingying Hu, Jun He, Hui Zeng, Zhengren Huang, Zhi-Yuan Li, Masaki Tanemura, Jianlin Shi, John R. Lombardi, Xiaoying Luo Apr 2021

Human Ace2‑Functionalized Gold “Virus‑Trap” Nanostructures For Accurate Capture Of Sars‑Cov‑2 And Single‑Virus Sers Detection, Yong Yang, Yusi Peng, Chenglong Lin, Li Long, Jingying Hu, Jun He, Hui Zeng, Zhengren Huang, Zhi-Yuan Li, Masaki Tanemura, Jianlin Shi, John R. Lombardi, Xiaoying Luo

Publications and Research

The current COVID-19 pandemic urges the extremely sensitive and prompt detection of SARS-CoV-2 virus. Here, we present a Human Angiotensin-converting-enzyme 2 (ACE2)-functionalized gold “virus traps” nanostructure as an extremely sensitive SERS biosensor, to selectively capture and rapidly detect S-protein expressed coronavirus, such as the current SARS-CoV-2 in the contaminated water, down to the single-virus level. Such a SERS sensor features extraordinary 106- fold virus enrichment originating from high-affinity of ACE2 with S protein as well as “virus-traps” composed of oblique gold nanoneedles, and 109- fold enhancement of Raman signals originating from multicomponent SERS effects. Furthermore, the identification standard of virus …


Introducing Pre-Service Teachers To Computational Thinking At Scale, Aankit Patel, Ashleigh B. Thompson, Heidi Williams, Octavia Abell, Carolyn Sykora Apr 2021

Introducing Pre-Service Teachers To Computational Thinking At Scale, Aankit Patel, Ashleigh B. Thompson, Heidi Williams, Octavia Abell, Carolyn Sykora

Publications and Research

This paper describes a replicable partnership model developed by a graduate school of education that aims to improve elementary student performance in science and math through modifications to pre-service methods courses using computational thinking (CT) content and pedagogy. In collaboration with computational thinking subject matter experts at the International Society for Technology in Education (ISTE), a team of childhood education faculty adapted methods courses and field seminars to integrate CT instruction and activities. Pre-service teachers (PSTs) were asked to draw on methods and seminar coursework to design and facilitate CT integrated lessons for grades 1-5 students during field work and …


Benefits Of The Virtual Platform For K-12 Stem Outreach, Melanie L. Villatoro, Laurin Moseley Apr 2021

Benefits Of The Virtual Platform For K-12 Stem Outreach, Melanie L. Villatoro, Laurin Moseley

Publications and Research

The number of students enrolling and graduating with STEM degrees in the Unites States must increase exponentially in order to meet the predicted job shortages in STEM. Perkins Peer Advisement is a grant funded program at College X committed to increasing enrollment and retention of female and nontraditional students in engineering technology programs. Program activities include professional development, mentoring, faculty development, and community outreach. Community outreach is a critical component of the program as it benefits the undergraduate students hosting the events as well as the K-12 students participating in them. Studies indicate that greater exposure to STEM at early …


Twistronics For Photons: Opinion, Guangwei Hu, Cheng-Wei Qiu, Andrea Alù Apr 2021

Twistronics For Photons: Opinion, Guangwei Hu, Cheng-Wei Qiu, Andrea Alù

Advanced Science Research Center

A pair of stacked two-dimensional heterostructures suitably rotated with respect to each other support exotic electronic properties with interesting implications for nanoelectronics and quantum technologies. A similar paradigm can be extended to light, offering a great promise for emerging low-dimensional nanophotonic heterostructures. In this Opinion article, we discuss emerging photonic responses enabled by twisting and stacking suitably tailored nanostructures. We discuss how the multi-physics interactions of light with matter in twisted bilayers can tailor their photonic response and engineer light dispersion in extreme ways. We conclude by providing an outlook on this emerging field of research and its potential for …


The Insular Herpetofauna Of Mexico: Composition, Conservation, And Biogeographic Patterns, Juan Valentín Pliego‐Sánchez, Christopher Blair, Aníbal H. Díaz De La Vega‐Pérez, Víctor H. Jiménez‐Arcos Apr 2021

The Insular Herpetofauna Of Mexico: Composition, Conservation, And Biogeographic Patterns, Juan Valentín Pliego‐Sánchez, Christopher Blair, Aníbal H. Díaz De La Vega‐Pérez, Víctor H. Jiménez‐Arcos

Publications and Research

We compile a Mexican insular herpetofaunal checklist to estimate endemism, conservation status, island threats, net taxonomic turnover among six biogeographic provinces belonging to the Nearctic and Neotropical regions, and the relationships between island area and mainland distance versus species richness. We compile a checklist of insular herpetofaunal through performing a literature and collection review. We define the conservation status according to conservation Mexican law, the Red List of International Union for Conservation of Nature, and Environmental Vulnerability Scores. We determine threat percentages on islands according to the 11 major classes of threats to biodiversity. We estimate the net taxonomic turnover …


Dual-Circularly Polarized Topological Patch Antenna With Pattern Diversity, Mirko Barbuto, Andrea Alù, Filiberto Bilotti, Alessandro Toscano Apr 2021

Dual-Circularly Polarized Topological Patch Antenna With Pattern Diversity, Mirko Barbuto, Andrea Alù, Filiberto Bilotti, Alessandro Toscano

Advanced Science Research Center

Recently, the topological properties of composite vortices, i.e., the superposition between vortex modes of a different order, have proven effective in manipulating the radiation properties of patch antennas and making them suitable for new operative scenarios. In this paper, we exploit these properties to design a multi-antenna system exhibiting both pattern- and polarization-diversity. The low mutual coupling and the possibility to steer two orthogonal polarized fields in different directions, make this radiating element an optimal candidate for antenna diversity or MIMO systems and, thus, for increasing signal quality or channel capacity of a communication system.


Ast 101: Introductory Astronomy, Cuny School Of Professional Studies Apr 2021

Ast 101: Introductory Astronomy, Cuny School Of Professional Studies

Open Educational Resources

An exploration of our solar system’s creation and the planets in our solar system using the latest scientific information, recent probe data, and new discoveries in the science of extra-solar planetary astronomy. This course is based in part upon materials developed by the American Museum of Natural History and is used with permission by the School of Professional Studies for this course.


Math 102: Mathematics In Contemporary Society, Cuny School Of Professional Studies Apr 2021

Math 102: Mathematics In Contemporary Society, Cuny School Of Professional Studies

Open Educational Resources

Designed to provide students with an understanding of the mathematical ideas and methods found in the social sciences, the arts, and business, this course covers the fundamentals of statistics, scatter plots, graphics in the media, problem-solving strategies, dimensional analysis, and mathematical modeling. Students can expect to explore real world applications.


Eas 250: Oceanography, Cuny School Of Professional Studies Apr 2021

Eas 250: Oceanography, Cuny School Of Professional Studies

Open Educational Resources

Oceanography is an interdisciplinary field studying the processes and interrelationships of geology, chemistry, geography, geophysics, meteorology, and biology. This course focuses on how scientific processes and scientific understanding are applied to questions such as: Which factors control life in the ocean? How do we know what we know about the ocean? What's at the bottom of the ocean? How does the water in the ocean move? How are human activities and climate change altering the ocean? Oceanographic data is used to understand the ocean and its interactions with the rest of the planet.

This course is based in part upon …


Math 215: Introduction To Statistics, Cuny School Of Professional Studies Apr 2021

Math 215: Introduction To Statistics, Cuny School Of Professional Studies

Open Educational Resources

Introduces the basic principles of statistics and probability, with an emphasis on understanding the underlying concepts, real-world applications, and the underlying story that the numbers tell. Uses Microsoft Excel’s statistical functions to analyze data. Provides an introduction to probability, descriptive statistics, hypothesis testing, and inferential statistics.


Math 120 Precalculus Review, York College Math 120 Students, Virginia L. Thompson Apr 2021

Math 120 Precalculus Review, York College Math 120 Students, Virginia L. Thompson

Open Educational Resources

No abstract provided.


Quan 201: Quantitative Reasoning And Society, Cuny School Of Professional Studies Apr 2021

Quan 201: Quantitative Reasoning And Society, Cuny School Of Professional Studies

Open Educational Resources

An interdisciplinary introduction to the ways in which data can be used to enhance thinking and decision-making capacities, including using simple statistical techniques, creating visual representations of quantitative data, deriving accurate conclusions from quantitative data, and using data effectively in analyses and arguments. Assignments build capacity to evaluate and write clearly about quantitative evidence using methods for analyzing and communicating about data that do not require complex mathematics.


Eas 201: Nature Of New York, Cuny School Of Professional Studies Apr 2021

Eas 201: Nature Of New York, Cuny School Of Professional Studies

Open Educational Resources

Provides an introduction to ecological reasoning through study of New York City’s geologic origins and transformations over time: natural and man-made environments, cultural history, biological diversity, habitats, and invasive species. Lectures, discussion, virtual labs and field experiences show how various elements have combined over time to form the current urban metropolis. Students will formulate testable hypothesis, collect and analyze field data, create well-developed laboratory reports.


Bézier Curves, Qing Chen, Ariane Masuda Apr 2021

Bézier Curves, Qing Chen, Ariane Masuda

Publications and Research

Drawing on a computer using a mouse is quite different than drawing by hand. It can be challenging to use a mouse to even simply trace a line. If the drawing involves several lines and curves, the task becomes more complicated. The goal of this project is to show how to design beautiful artworks using Bézier curves. A Bézier curve is a smooth parametric curve produced by the coordinates of certain points. To draw a specific curve, one needs to select multiple control points positioned in strategic places. By changing these positions, one can draw different curves to produce the …


The Beauty Of Bézier Curves, Qing Chen, Ariane Masuda Apr 2021

The Beauty Of Bézier Curves, Qing Chen, Ariane Masuda

Publications and Research

It is very difficult for ordinary people to become excellent painters like Picasso. In contemporary society, everyone has a computer, but no one associates painting with computers. This project aims to show that one can use computer tools to connect mathematics with art. We use Krita, which is a professional free, and open-source painting program made by artists to create digital art. We demonstrate how the Bezier curve pen tool in Krita can help anyone to ́ draw paintings such as Picasso’s cubist oil paintings on a computer in a relatively short time.


Atheism As An Extreme Rejection Of Rational Evidence For The Existence Of God, Carlo Alvaro Mar 2021

Atheism As An Extreme Rejection Of Rational Evidence For The Existence Of God, Carlo Alvaro

Publications and Research

Explicit atheism is a philosophical position according to which belief in God is irrational and thus it should be rejected. In this paper, I revisit, extend, and defend against the most telling counter arguments the Kalām Cosmological Argument in order to show that explicit atheism must be deemed as a positively irrational position.


Survey On Quantum Circuit Compilation For Noisy Intermediate-Scale Quantum Computers: Artificial Intelligence To Heuristics, Janusz Kusyk, Samah Mohamed Saeed, Muharrem Umit Uyar Mar 2021

Survey On Quantum Circuit Compilation For Noisy Intermediate-Scale Quantum Computers: Artificial Intelligence To Heuristics, Janusz Kusyk, Samah Mohamed Saeed, Muharrem Umit Uyar

Publications and Research

Computationally expensive applications, including machine learning, chemical simulations, and financial modeling, are promising candidates for noisy intermediate scale quantum (NISQ) computers. In these problems, one important challenge is mapping a quantum circuit onto NISQ hardware while satisfying physical constraints of an underlying quantum architecture. Quantum circuit compilation (QCC) aims to generate feasible mappings such that a quantum circuit can be executed in a given hardware platform with acceptable confidence in outcomes. Physical constraints of a NISQ computer change frequently, requiring QCC process to be repeated often. When a circuit cannot directly be executed on a quantum hardware due to its …


Open-Source Computational Framework For Studying Drosophila Behavioral Phase, Boyan Kostadinov, Hannah Lee Pettibone, Evardra Valerie Bell, Xiaona Zhou, Ausra Pranevicius, Orie Thomas Shafer, Maria Paz Fernandez Mar 2021

Open-Source Computational Framework For Studying Drosophila Behavioral Phase, Boyan Kostadinov, Hannah Lee Pettibone, Evardra Valerie Bell, Xiaona Zhou, Ausra Pranevicius, Orie Thomas Shafer, Maria Paz Fernandez

Publications and Research

This protocol describes a standardized method for analyzing Drosophila behavioral rhythmicity under light dark cycles, temperature ramps, and free running conditions. The protocol constitutes a step-by-step guide from generation of appropriate Drosophila genetic crosses to behavioral experiments. We also provide an opensource computational framework using R for the analysis of the phase of behavior using circular statistics. An extended method for complete use is also provided. For complete details on the use and execution of this protocol, please refer to Fernandez et al. (2020).


Alternative View Of Oxygen Reduction On Porous Carbon Electrocatalysts: The Substance Of Complex Oxygen-Surface Interactions, Giacomo De Falco, Marc Florent, Jacek Jagiello, Yongqiang Cheng, Luke L. Daemen, Anibal J. Ramirez-Cuesta, Teresa J. Bandosz Mar 2021

Alternative View Of Oxygen Reduction On Porous Carbon Electrocatalysts: The Substance Of Complex Oxygen-Surface Interactions, Giacomo De Falco, Marc Florent, Jacek Jagiello, Yongqiang Cheng, Luke L. Daemen, Anibal J. Ramirez-Cuesta, Teresa J. Bandosz

Publications and Research

Electrochemical oxygen reduction reaction (ORR) is an important energy-related process requiring alternative catalysts to expensive platinum-based ones. Although recently some advancements in carbon catalysts have been reported, there is still a lack of understanding which surface features might enhance their efficiency for ORR. Through a detailed study of oxygen adsorption on carbon molecular sieves and using inelastic neutron scattering, we demonstrated here that the extent of oxygen adsorption/interactions with surface is an important parameter affecting ORR. It was found that both the strength of O2 physical adsorption in small pores and its specific interactions with surface ether functionalities in the …


Dipolariton Propagation In A Van Der Waals Tmdc With Ψ-Shaped Channel Guides And Buffered Channel Branches, Patrick Serafin, German Kolmakov Mar 2021

Dipolariton Propagation In A Van Der Waals Tmdc With Ψ-Shaped Channel Guides And Buffered Channel Branches, Patrick Serafin, German Kolmakov

Publications and Research

Using a computational approach based on the driven diffusion equation for a dipolariton wave packet, we simulate the diffusive dynamics of dipolaritons in an optical microcavity embedded with a transition metal dichalcogenide (TMDC) heterogeneous bilayer encompassing a Ψ-shaped channel. By considering exciton dipolaritons, which are a three way superposition of direct excitons, indirect excitons and cavity photons; we are able to drive the dipolaritons in our system by the use of an electric voltage and investigate their diffusive properties. More precisely, we study the propagation of dipolaritons present in a MoSe2-WS2 heterostructure, where the dipolariton propagation is …


A Deep Learning Approach To Diagnostic Classification Of Prostate Cancer Using Pathology–Radiology Fusion, Pegah Khosravi, Maria Lysandrou, Mahmoud Eljalby, Qianzi Li, Ehsan Kazemi, Pantelis Zisimopoulos, Alexandros Sigaras, Matthew Brendel, Josue Barnes, Camir Ricketts, Dmitry Meleshko, Andy Yat, Timothy D. Mcclure, Brian D. Robinson, Andrea Sboner, Olivier Elemento, Bilal Chughtai, Iman Hajirasouliha Mar 2021

A Deep Learning Approach To Diagnostic Classification Of Prostate Cancer Using Pathology–Radiology Fusion, Pegah Khosravi, Maria Lysandrou, Mahmoud Eljalby, Qianzi Li, Ehsan Kazemi, Pantelis Zisimopoulos, Alexandros Sigaras, Matthew Brendel, Josue Barnes, Camir Ricketts, Dmitry Meleshko, Andy Yat, Timothy D. Mcclure, Brian D. Robinson, Andrea Sboner, Olivier Elemento, Bilal Chughtai, Iman Hajirasouliha

Publications and Research

Background

A definitive diagnosis of prostate cancer requires a biopsy to obtain tissue for pathologic analysis, but this is an invasive procedure and is associated with complications.

Purpose

To develop an artificial intelligence (AI)-based model (named AI-biopsy) for the early diagnosis of prostate cancer using magnetic resonance (MR) images labeled with histopathology information.

Study Type

Retrospective.

Population

Magnetic resonance imaging (MRI) data sets from 400 patients with suspected prostate cancer and with histological data (228 acquired in-house and 172 from external publicly available databases).

Field Strength/Sequence

1.5 to 3.0 Tesla, T2-weighted image pulse sequences.

Assessment

MR images reviewed and selected …