Digital Commons Network^™

Implementation Of Pseudo-Random Number Generator Using Lfsr, Touheda Khanom, Fahmeda Khanom

Publications and Research

Linear Feedback Shift Registers (LFSR) play a vital role to provide cybersecurity for the data communication system. LFSR is a shift register where the input is linear of its previous states. The most important application of LFSR is the device’s ability to generate a pseudo-random sequence of values that are used in encryption and decryption to secure personal data. Moreover, LFSR is used in Cyclic Redundancy Check Calculations (CRC) which can help to detect errors and corruption in data communications as LFSR feedback values can be modified. The main objective of the research is to generate the pseudo-random sequence of …

Developing Ionic Nanomaterials For Biomedical Applications: Surface Chemistry And Morphologic Imaging, Lin Mousa, Hayley Sanchez, Subhendra Sarkar, Zoya Vinokur

Publications and Research

Microscopic properties of various radiologic contrast materials are studied for weak to strong surface interactions in model fruits. These interactions are imaged under various ionic environments as present in multiple, common fruit systems. Low and high X-ray energies may show different imaging noise reflective of scattered radiation from iron, manganese, and other metal ions in fruits. This will be compared with MRI image noise on similar systems obtainable from collaborating MRI research students (see Bleidis Buitrago et al, in this poster session).

Measuring Influence On Twitter, Daniela B. Martinez

Publications and Research

A survey took in MAT 1372 about students' opinions on Twitter showed that most of them assumed that if a Twitter account has more followers, it will receive more likes or replies. However, accounts can buy followers, and followers do not necessarily mean engagement. In this paper, we used Twitter because it is a significant player in social media, but we can measure influence without using Twitter's follower count. We took a reference from Meeyoung Cha's article "The Million Follower Fallacy," which has demonstrated that the Twitter follower count is a meaningless metric in determining influence. To measure influence, a …

Care And Maintenance Of Dental Restorations, Ibeth Erazo

Publications and Research

Contributing to the longevity of the restoration by minimizing the effects of surface corrosion, maintaining the esthetic appearance and the smooth surface characterization, and contributing to gingival health by lessening the potential for plaque retention are the principal reasons for taking care of dental restorations. However, during oral hygiene routine procedures and prevention treatments, these desired effects are not always achieved. In many cases, the restorative materials are not identified in a patient’s record leading to damage during oral hygiene performance by dental professionals. Therefore, it is important to be able to recognize the different restorative materials and employ the …

Benefits Of Pre-Construction Analysis: Cet Senior Capstone Expands Understanding Of An Urban Refuge At Gallopnyc Sunrise Stables, Aalaa Mohammed

Publications and Research

For any construction project, there exists a phase of planning known as “pre-construction.” This initial phase of the project provides a definition of the project, identification of potential issues, planning and scheduling, scope, cost estimation, and analysis of needs for the job. My research analyzes a pre-construction case study conducted for Gallop NYC’s Stable in Howard Beach, Queens. The findings suggest that the practice of construction planning is effective in order to avoid delays in construction itself and ensure successful project completion. Supporting literature examines some of the best practices for pre-construction analysis. These include but are not limited to: …

Principal Component Analysis For Predicting The Party Of The Legislators, Afsana Mimi

Publications and Research

In Spring 2020, I did a project, "Decision Tree Predicting the Party of Legislators," and construct a decision tree model to predict legislators' parties' based on their votes. We also use this model to identify legislators who frequently voted against their parties. We used the legislators' roll call votes, Office of Clerk U.S. House of Representatives Data Sets (Categorical values) collected in 2018 and 2019. In this new project, We study the 2018 and 2019 vote data using Principal Component Analysis (PCA). The goal is to find a (compressed) model using unsupervised learning to distinguish the legislators' parties, and PCA …

Data Analysis And Visualizations Of Drosophila Behavioral Phases, Xiaona Zhou

Publications and Research

We analyze drosophila behavioral data from the neuroscience labs of Professor Maria de la Paz Fernandez, Barnard College of Columbia University, and Professor Orie Shafer, the Neuroscience Initiative of the CUNY Advanced Science Research Center. The main goal of this project is to create algorithms for analyzing and visualizing the average activity of drosophila across a specified number of days and across all live flies and use this analysis to calibrate a smoothing filter to be applied to the raw fly activity so that the drosophila behavioral phases can be computed and visualized. We also investigate how to compute and …

Using Statistical Analysis To Examine Weather Variability In New York City, Ryan Chen, Yuhuang Wang, Jiehao Huang

Publications and Research

As the overall temperature of Earth continues to warm, atmospheric hazards (e.g. heatwaves, cyclones) may be driving increases in climatological trends. This study examines the daily precipitation and temperature record of the greater New York City region during the 1979-2014 period. Daily station observations from three greater New York City airports: John F. Kennedy (JFK), LaGuardia (LGA) and Newark (EWR), are used in this study. Climatological & statistical analyses are performed for the weather variability of New York City metro area to understand the impacts of climate change.The temperature climatology reveals a distinct seasonal cycle, while the precipitation climatology exhibits …

Open Educational Resources: What Do Students Want?, Aneeza Hussain, Joyette K. Noel

Publications and Research

This project aims at identifying the needs and requests of students for Open Educational Resources (OERs) in order to develop rubrics for design, evaluation but also revisions of OERs. For this purpose literature searches on the matter were conducted to determine if information on students’ perspective on OER content and expectations existed. Simultaneously, feedback from fellow City Tech students with experience using OERs has been collected. Our results provide insight on how City Tech students perceive OERs, in comparison with traditional resources. This also pinpoints the key pedagogical features that OERs should offer in order to attract, engage and better …

An Investigation Into The Response Of The Us And Eu5 To The Covid-19 Disease (Convergence Of Two Pandemics: Covid-19 And Ncds), Omar Hassan

Publications and Research

In late December 2019, a coronavirus disease (COVID-19) was identified in Wuhan China. COVID-19 was a result of the novel severe acute respiratory syndrome coronavirus 2 (SARA-CoV-2), which has resulted in a worldwide sudden and substantial increase in hospitalizations for pneumonia with multiorgan disease. As of October 6, 2020, SARS-CoV-2 has affected more than 200 countries, resulting in more than 35 million identified cases with more than 1 million confirmed deaths.

This is a cross-sectional, non-interventional, observational study in patients infected with the novel coronavirus (SARS-CoV-2) or Covid-19, using John Hopkins University database JHU Coronavirus map. The data collected from …

10 Steps To Reform Graduate Education In The Humanities, Katina Rogers

Publications and Research

Desperate times call for big changes. Here’s a summary of ten things professors and administrators should do to fix a broken graduate system—and suggestions for graduate students on how to survive in the mean time.

A Positive Impact During Covid-19 Pandemic: A Virtual Cataloger's Experiences, Wendy W. Tan

Publications and Research

It is well known to all catalogers of physical materials, such as: print books, rare objects, DVDs, CDs, that onsite environment is an optimal place for carrying out the job duties. Coming out of the blue, the impact of COVID-19 pandemic has radically transformed this tradition to an amazing way for many catalogers of this type. In this essay, the author delineates, from her own experiences in coping with the unprecedent situation, the process of making the best use of this period while working virtually, away from the familiar second home—Hunter College Library. The surprisingly great outcome is also documented.

Covid-19 Impact On Radiology Students’ Distance Learning (Fall 2020), Mary Lee, Zoya Vinokur, Jason Chan, Renzo Marmolejo, Cherylann Jackson-Holmes

Publications and Research

Distance learning (DL) is a teaching tool that offers education to students remotely in various locations (Ruiz, 2006). The increase in distance learning education is evident in all types of educational programs including those in Radiologic Sciences. DL education programs are expected to comply with all standards just as traditional programs are (Aaron, 2015). With traditional class settings, knowledge is taught at a given time and day and is structured in terms of course development and attendance. It does not factor in the domestic and familial responsibilities of the students outside the classroom walls or the effects of a worldwide …

When Are You Going To Catch Up With Me? Shu Lea Cheang With Alexandra Juhasz, Alexandra Juhasz

Publications and Research

“Digital nomad” Shu Lea Cheang and friend and critic Alexandra Juhasz consider the reasons for and implications of the censorship of Cheang’s 2017 film FLUIDØ, particularly as it connects to their shared concerns in AIDS activism, feminism, pornography, and queer media. They consider changing norms, politics, and film practices in relation to technology and the body. They debate how we might know, and what we might need, from feminist-queer pornography given feminist-queer engagements with our bodies and ever more common cyborgian existences. Their informal chat opens a window onto the interconnections and adaptations that live between friends, sex, technology, …

Autonomous Health Movements: Criminalization, De-Medicalization, And Community-Based Direct Action, Naomi Braine

Publications and Research

This paper proposes the concept of autonomous health movements, drawing on an analysis of harm reduction in the United States and self-managed abortion globally. Harm reduction and self-managed abortion appear in the professional literature largely as evidenced-based public health strategies, more than as social movements. However, each began at the margins of the law as a form of direct action developed by activists anchored in social justice movements and working in community contexts independent of both state and institutional control according to a human rights perspective of bodily integrity and autonomy. An analysis of the history and dynamics of harm …

Decarcerating New York City: Lessons From A Pandemic, Nicole Smith Futrell

Publications and Research

Over the last decade, long before the far-reaching impact of COVID-19, the criminal legal system in New York City was on a meandering path toward decarceration. Set against the national backdrop of declining crime rates and a reckoning with the economic, social, and racial costs of mass criminalization and incarceration, elected officials in New York City and State had finally acknowledged that a shift toward reducing the number of people held in New York City jails was long overdue. Sweeping legislative reforms to bail, discovery, and speedy trial statutes, as well as the planned closure of Rikers Island, the city’s …

Tending To An Overgrown Garden: Weeding And Rebuilding A Libguides V2 System, Rebecca Hyams

Publications and Research

In 2019, the Borough of Manhattan Community College’s library undertook a massive cleanup and reconfiguration of the content and guides contained in their LibGuides v2 system, which had been allowed to grow out of control over several years as no one was in charge of its maintenance. This article follows the process from identifying issues, getting departmental buy-in, and doing all of the necessary cleanup work for links and guides. The aim of the project was to make their guides easier for students to use and understand and for librarians to maintain. At the same time, work was done to …

Network-Level Mechanisms Underlying Effects Of Transcranial Direct Current Stimulation (Tdcs) On Visuomotor Learning, Pejman Sehatpour, Clément Dondé, Matthew J. Hoptman, Johanna Kreither, Devin Adair, Elisa Dias, Blair Vail, Stephanie Rohrig, Gail Silipo, Javier Lopez-Calderon, Antigona Martinez, Daniel C. Javitt

Publications and Research

Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation approach in which low level currents are administered over the scalp to influence underlying brain function. Prevailing theories of tDCS focus on modulation of excitation-inhibition balance at the local stimulation location. However, network level effects are reported as well, and appear to depend upon differential underlying mechanisms. Here, we evaluated potential network-level effects of tDCS during the Serial Reaction Time Task (SRTT) using convergent EEG- and fMRI-based connectivity approaches. Motor learning manifested as a significant (p <.0001) shift from slow to fast responses and corresponded to a significant increase in beta-coherence (p <.0001) and fMRI connectivity (p <.01) particularly within the visual-motor pathway. Differential patterns of tDCS effect were observed within different parametric task versions, consistent with network models. Overall, these findings demonstrate objective physiological effects of tDCS at the network level that result in effective behavioral modulation when tDCS parameters are matched to network-level requirements of the underlying task.

Kanien’Kéha (Mohawk) (United States And Canada) - Language Snapshot, Joseph Pentangelo

Publications and Research

Kanien’kéha is an endangered Northern Iroquoian language historically spoken in what is now the Mohawk Valley of central New Yorkstate in the United States of America. Today, it is spoken by about 3,800 people in six communities in upstate New York, USA, and in Ontario and Quebecprovinces, Canada: Akwesasne, Kahnawake, Kanesatake, Six Nations, Wahta, and Tyendinaga. The varieties spoken in these communities differ slightly in terms of phonology, vocabulary, and orthography. Robust language revitalisation efforts are ongoing, and the language is of great cultural importance to the Kanien’kehá:ka people.

Invisible Inequalities: Persistent Health Threats In The Urban Built Environment, Kara M. Schlichting, Melanie A. Kiechle

Publications and Research

A city’s materiality creates health and illness. We both write about air – its movement and its temperature – as it affects human bodies. We offer two topics as case studies, heat and ventilation, and how they exacerbate the effects of each other, to illustrate the long history of seemingly new challenges posed by the novel coronavirus. The environmental inequalities of heat exposure and access to fresh air underscore that cities can only be considered ‘low impact’ on the environment from a top-down, large-scale approach. In writing about air and heat, we direct attention to the feel and the bodily …

Reproducibility And Sensitivity Of Thirty-Six Methods To Quantify The Sars-Cov-2 Genetic Signal In Raw Wastewater: Findings From An Interlaboratory Methods Evaluation In The U.S., Brian M. Pecson, Emily Darby, Charles N. Haas, Yamrot M. Amha, Mitchel Bartolo, Richard Danielson, Yeggie Dearborn, George Di Giovanni, Christobel Ferguson, Stephanie Fevig, Erica Gaddis, Donald Gray, George Lukasik, Bonnie Mull, Liana Olivas, Adam Olivieri, Yan Qu, Sars-Cov-2 Interlaboratory Consortium, John J. Dennehy

Publications and Research

In response to COVID-19, the international water community rapidly developed methods to quantify the SARS-CoV-2 genetic signal in untreated wastewater. Wastewater surveillance using such methods has the potential to complement clinical testing in assessing community health. This interlaboratory assessment evaluated the reproducibility and sensitivity of 36 standard operating procedures (SOPs), divided into eight method groups based on sample concentration approach and whether solids were removed. Two raw wastewater samples were collected in August 2020, amended with a matrix spike (betacoronavirus OC43), and distributed to 32 laboratories across the U.S. Replicate samples analyzed in accordance with the project's quality assurance plan …

No Longer, Not Yet: Retrofuture Hauntings On The Jetsons, Stefano Morello

Publications and Research

From Back to the Future to The Wonder Years, from Peggy Sue Got Married to The Stray Cats’ records – 1980s youth culture abounds with what Michael D. Dwyer has called “pop nostalgia,” a set of critical affective responses to representations of previous eras used to remake the present or to imagine corrective alternatives to it. Longings for the Fifties, Dwyer observes, were especially key to America’s self-fashioning during the Reagan era (2015).

Moving from these premises, I turn to anachronisms, aesthetic resonances, and intertextual references that point to, as Mark Fisher would have it, both a lost past …

Open Data, Collaborative Working Platforms, And Interdisciplinary Collaboration: Building An Early Career Scientist Community Of Practice To Leverage Ocean Observatories Initiative Data To Address Critical Questions In Marine Science, Robert M. Levine, Kristen E. Fogaren, Johna E. Rudzin, Christopher J. Russoniello, Dax C. Soule, Justine M. Whitaker

Publications and Research

Ocean observing systems are well-recognized as platforms for long-term monitoring of near-shore and remote locations in the global ocean. High-quality observatory data is freely available and accessible to all members of the global oceanographic community—a democratization of data that is particularly useful for early career scientists (ECS), enabling ECS to conduct research independent of traditional funding models or access to laboratory and field equipment. The concurrent collection of distinct data types with relevance for oceanographic disciplines including physics, chemistry, biology, and geology yields a unique incubator for cutting-edge, timely, interdisciplinary research. These data are both an opportunity and an incentive …

“9/11 And The Collapse Of The American Dream: Imbolo Mbue’S Behold The Dreamers”, Elizabeth Toohey

Publications and Research

Behold the Dreamers follows a Cameroonian couple who, as newcomers to America, harbor dreams of success unavailable to them back home. Undocumented immigration, the widening gulf between rich and poor, and the thinly veiled racism of an avowedly "post-racial" culture converge in this new generation of immigrants' painful encounter with the American dream. I consider the ways Mbue's novel shares themes with a "second wave" of post- 9/11 literature—first, in centering the disillusionment of a protagonist aspiring to the American dream; next, in its representation of New York as a space haunted by 9/11, but also of resistance to the …

Unconventional Constituents And Shared Molecular Architecture Of The Melanized Cell Wall Of C. Neoformans And Spore Wall Of S. Cerevisiae, Christine Chrissian, Coney Pei-Chin Lin, Emma Camacho, Arturo Casadevall, Aaron M. Neiman, Ruth E. Stark

Publications and Research

The fungal cell wall serves as the interface between the cell and the environment. Fungal cell walls are composed largely of polysaccharides, primarily glucans and chitin, though in many fungi stress-resistant cell types elaborate additional cell wall structures. Here, we use solid-state nuclear magnetic resonance spectroscopy to compare the architecture of cell wall fractions isolated from Saccharomyces cerevisiae spores and Cryptococcus neoformans melanized cells. The specialized cell walls of these two divergent fungi are highly similar in composition. Both use chitosan, the deacetylated derivative of chitin, as a scaffold on which a polyaromatic polymer, dityrosine and melanin, respectively, is assembled. …

Profile Of San Francisco Domestic Workers, Isaac Jabola-Carolus

Publications and Research

Domestic workers are integral to the social and economic fabric of San Francisco. This report, based on an ongoing study, outlines the demographic composition and employment conditions of this workforce. The analysis draws upon U.S. Census Bureau data, Bureau of Labor Statistics data, and an original survey of over 200 domestic workers employed in San Francisco.

Nelson I La Bombolla Electoral De Nova York, Antoni Pizà

Publications and Research

Durant molt de temps m’he enganyat a mi mateix, i de rebot he enganyat els altres: em pensava que no coneixia cap republicà. Quan els amics d’Europa em demanaven detalls sobre les idiosincràsies de la vida nord-americana, sabent que jo vivia a Nova York, la conversa començava o acabava dient: «Però, és clar, tu vius a NY. NY no és els EUA». Certament la «bombolla» de NY és un fet fefaent que en el meu cas s’accentua i es blinda gràcies a una membrana protectora de múltiples teguments.

Unrealistic Body Standards Produced By The Media, Kishana Mckenzie, Jenae Mckenzie, Angelisa Charles

Publications and Research

As decades go by and the media expands, more unrealistic beauty standards are set and produced to affect the minds of people in society. Research is critical to validate the effects in question.

Two different types of research were conducted. The first research was conducted by Jean-Luc Jucker and his team in an area where the people were not exposed to any forms of media whereas the second research was conducted with a group of students who were exposed to any type of media. The findings collected from the research showed negative effects from participants. The findings confirmed that the …

Proportional Voting Based Semi-Unsupervised Machine Learning Intrusion Detection System, Yang G. Kim, Ohbong Kwon, John Yoon

Publications and Research

Feature selection of NSL-KDD data set is usually done by finding co-relationships among features, irrespective of target prediction. We aim to determine the relationship between features and target goals to facilitate different target detection goals regardless of the correlated feature selection. The unbalanced data structure in NSL-KDD data can be relaxed by Proportional Representation (PR). However, adopting PR would deny the notion of winner-take-all by attracting a majority of the vote and also provide a fairly proportional share for any grouping of like-minded data. Furthermore, minorities and majorities would get a fair share of power and representation in data structure …

Proteomic Analysis Of Platelet-Rich And Platelet-Poor Plasma, Olga Miroshnychenko, Robert J. Chalkley, Ryan D. Leib, Peter A. Everts, Jason L. Dragoo

Publications and Research

Background

Autologous blood products, such as platelet-rich plasma (PRP) are commercial products broadly used to accelerate healing of tissues after injuries. However, their content is not standardized and significantly varies in composition, which may lead to differences in clinical efficacy. Also, the underlying molecular mechanisms for therapeutic effects are not well understood.

Purpose

A proteomic study was performed to compare the composition of low leukocyte PRP, platelet poor plasma (PPP), and blood plasma. Pathway analysis of the proteomic data was performed to evaluate differences between plasma formulations at the molecular level. Low abundance regulatory proteins in plasma were identified and …