Digital Commons Network^™

Simulation As A Predictor In Probability, Xiaona Zhou

Publications and Research

In this study, we simulate bivariate normal data. We gain intuition about the bivariate normal distribution by comparing the generated data to the associated bivariate normal density surface. We also get results about covariance and correlation. We will use tools from linear algebra to discuss transformations of random normal vectors, and the use of contours.

Works In Process - Scholar Edition, Pablo Galindo Aragon, George Garrastegui Jr.

Publications and Research

The creative field revolves around many professions. Creatives share a lot of common themes that are part of their process. It is with these themes that we establish a more impact way to listen to a podcast. Reviewing and breaking episodes up into chapters can effectively guide a student, aka a Scholar, in their path to establishing a creative career.Some of the most powerful ways to get ahead in the creative field is by networking, and obtaining valuable knowledge from other creatives. Gathering this information and making these connections can be quite the task. Not all young creatives are aware …

Students' Perspective On Enjoyment In Mathematics Classes, Yasmine A. Soofi, Miralia Moreou, Nadia Kennedy

Publications and Research

The project will focus on students’ perspective of enjoyment in mathematics. The research questions that will be explored are: 1) Do students enjoy math classes? If so, what aspects of the classes they find enjoyable and why? If not, what aspects they do not enjoy and why? and 2) What do students think would make the math classes more enjoyable? Data will be collected by administrating surveys to students from two mathematics courses. The data will be organized, analyzed and presented at the poster session.

Neural Indices Of Vowel Discrimination In Monolingual And Bilingual Infants And Children, Yan H. Yu, Carol Tessel, Henry Han, Luca Campanelli, Nancy Vidal, Jennifer Gerometta, Karen Garrido-Nag, Hia Datta, Valerie L. Shafer

Publications and Research

Objectives: To examine maturation of neural discriminative responses to an English vowel contrast from infancy to 4 years of age and to determine how biological factors (age and sex) and an experiential factor (amount of Spanish versus English input) modulate neural discrimination of speech.

Design: Event-related potential (ERP) mismatch responses (MMRs) were used as indices of discrimination of the American English vowels [ε] versus [I] in infants and children between 3 months and 47 months of age. A total of 168 longitudinal and cross-sectional data sets were collected from 98 children (Bilingual Spanish–English: 47 male and 31 female …

Initial Evaluation Of Computer-Assisted Radiologic Assessment For Renal Mass Edge Detection As An Indication Of Tumor Roughness To Predict Renal Cancer Subtypes, Rahul Rajendran, Kevan Iffrig, Deepak K. Pruthi, Allison Wheeler, Brian Neuman, Dharam Kaushik, Ahmed M. Mansour, Karen Panetta, Sos Agaian, Michael A. Liss

Publications and Research

Objective. To develop software to assess the potential aggressiveness of an incidentally detected renal mass using images. Methods. Thirty randomly selected patients who underwent nephrectomy for renal cell carcinoma (RCC) had their images independently reviewed by engineers. Tumor “Roughness” was based on image algorithm of tumor topographic features visualized on computed tomography (CT) scans. Univariant and multivariant statistical analyses are utilized for analysis. Results. We investigated 30 subjects that underwent partial or radical nephrectomy. After excluding poor image-rendered images, 27 patients remained (benign cyst = 1, oncocytoma = 2, clear cell RCC = 15, papillary RCC = …

The Criminogenic And Psychological Effects Of Police Stops On Adolescent Black And Latino Boys, Juan Del Toro, Tracey Lloyd, Kim S. Buchanan, Summer Joi Robins, Lucy Zhang Bencharit, Meredith Gamson Smiedt, Kavita S. Reddy, Enrique Rodriguez Pouget, Erin M. Kerrison, Philip Atiba Goff

Publications and Research

Proactive policing, the strategic targeting of people or places to prevent crimes,is a well-studied tactic that is ubiquitous in modern law enforcement. A 2017 National Academies of Sciences report reviewed existing literature, entrenched in deterrence theory, and found evidence that proactive policing strategies can reduce crime. The existing literature, however, does not explore what the short and long-term effects of police contact are for young people who are subjected to high rates of contact with law enforcement as a result of proactive policing. Using four waves of longitudinal survey data from a sample of predominantly black and Latino boys in …

Ligand Selectivity In The Recognition Of Protoberberine Alkaloids By Hybrid-2 Human Telomeric G-Quadruplex: Binding Free Energy Calculation, Fluorescence Binding, And Nmr Experiments, Nanjie Deng, Junchao Xia, Lauren Wickstrom, Clement Lin, Kaibo Wang, Peng He, Yunting Yin, Danzhou Yang

Publications and Research

The human telomeric G-quadruplex (G4) is an attractive target for developing anticancer drugs. Natural products protoberberine alkaloids are known to bind human telomeric G4 and inhibit telomerase. Among several structurally similar protoberberine alkaloids, epiberberine (EPI) shows the greatest specificity in recognizing the human telomeric G4 over duplex DNA and other G4s. Recently, NMR study revealed that EPI recognizes specifically the hybrid-2 form human telomeric G4 by inducing large rearrangements in the 50-flanking segment and loop regions to form a highly extensive four-layered binding pocket. Using the NMR structure of the EPI-human telomeric G4 complex, here we perform molecular dynamics free …

Synchronicity: The Role Of Midbrain Dopamine In Whole-Brain Coordination, Jeff A. Beeler, Jakob Kiskye Dreyer

Publications and Research

Midbrain dopamine seems to play an outsized role in motivated behavior and learning. Widely associated with mediating reward-related behavior, decision making, and learning, dopamine continues to generate controversies in the field. While many studies and theories focus on what dopamine cells encode, the question of how the midbrain derives the information it encodes is poorly understood and comparatively less addressed. Recent anatomical studies suggest greater diversity and complexity of afferent inputs than previously appreciated, requiring rethinking of prior models. Here, we elaborate a hypothesis that construes midbrain dopamine as implementing a Bayesian selector in which individual dopamine cells sample afferent …

Densities For The Repeating Decimals Problems, Nelson A. Carella

Publications and Research

Let \(p\geq 2\) be a prime, and let $1/p=0.\overline{x_{w-1} \ldots x_1x_0}$, $x_i \in \{0,1, 2, \ldots , 9\}$. The period $w\geq 1$ of the repeating decimal $1/p$ is a divisor of $p-1$. This note shows that the counting function for the number of primes with maximal period $w=p-1$ has an effective lower bound $\pi_{10}(x)=\# \{ p\leq x:\ord_p(10)=p-1 \}\gg x/ \log x$. This is a lower bound for the number of primes \(p\leq x\) with a fixed primitive root \(10 \bmod p\) for all large

numbers \(x\geq 1\). An extension to repeating decimal $1/p$ with near maximal period $w=(p-1)/r$, where $r …

Squarefree Totients P-1 And Primitive Roots, Nelson A. Carella

Publications and Research

This note determines an effective asymptotic formula for the number of squarefree totients $p-1$ with a fixed primitive root t u 6= ±1, v2

All-Optical Control Of Lead Halide Perovskite Microlasers, Nan Zhang, Yubin Fan, Kaiyang Wang, Zhiyuan Gu, Yuhan Wang, Li Ge, Shumin Xiao, Qinghai Song

Publications and Research

Lead halide perovskites based microlasers have recently shown their potential in nanophotonics. However, up to now, all of the perovskite microlasers are static and cannot be dynamically tuned in use. Herein, we demonstrate a robust mechanism to realize the alloptical control of perovskite microlasers. In lead halide perovskite microrods, deterministic mode switching takes place as the external excitation is increased: the onset of a new lasing mode switches off the initial one via a negative power slope, while the main laser characteristics are well kept. This mode switching is reversible with the excitation and has been explained via cross-gain saturation. …

Neuromeasure: A Software Package For Quantification Of Cortical Motor Maps Using Frameless Stereotaxic Transcranial Magnetic Stimulation, Michael B. Gerber, Alasdair C. Mclean, Samuel J. Stephen, Alex G. Chalco, Usman M. Arshad, Gary W. Thickbroom, Josh Silverstein, K. Zoe Tsagaris, Amy Kuceyeski, Kathleen Friel, Taiza E. G. Santos, Dylan J. Edwards

Publications and Research

The recent enhanced sophistication of non-invasive mapping of the human motor cortex using MRI-guided Transcranial Magnetic Stimulation (TMS) techniques, has not been matched by refinement of methods for generating maps from motor evoked potential (MEP) data, or in quantifying map features. This is despite continued interest in understanding cortical reorganization for natural adaptive processes such as skill learning, or in the case of motor recovery, such as after lesion affecting the corticospinal system. With the observation that TMS-MEP map calculation and quantification methods vary, and that no readily available commercial or free software exists, we sought to establish and make …

The Modeling, Design, Fabrication, And Application Of Biosensor Based On Electric Cell-Substrate Impedance Sensing (Ecis) Technique In Environmental Monitoring, Xudong Zhang, William Wang, Sunghoon Jang

Publications and Research

In this research, the modeling, design, fabrication, and application of ECIS sensors in environmental monitoringare studied. The ECIS sensors are able to qualify the water toxicity through measuring the cell impedance. A novel mathematical model is proposed to analyze the distribution of electric potential and current of ECIS. This mathematical model is validated by experimental data and can be used to optimize the dimension of ECIS electrodes in order to satisfy environmental monitors. The detection sensitivity of ECIS sensors is analyzed by the mathematical model and experimental data. The simulated and experimental results show that ECIS sensors with smaller radius …

Why Doula Services Should Become An Essential Health Benefit In New York State, Jalisha Hanshaw, Amy White

Publications and Research

Doulas are birth workers who assist expecting mothers through pregnancy, birth and postpartum using holistic techniques. Techniques include: prenatal yoga, birth affirmations and induction acupuncture. Doulas are underrated healthcare providers who deserve the same respect as clinical and non-clinical providers. Doulas are well-rounded alternative care providers who focus on mental, emotional, and physical well being of mothers. Also, they know special alternative medical techniques that prevent mothers from maternal mortality among other negative health outcomes. The amount of time and effort doulas perform with expecting mothers are equal or more than the average medical healthcare provider and should be a …

Polydopamine As A Biomaterial For Hydrogels, Abdulhaq Syed, Elena Dermendzhieva, Josiah Hicks, Madeline Wong, Naphtali O'Connor

Publications and Research

Hydrogels are networked polymers with hydrophilicity that helps them to retain an ample amount of water. Recent research on hydrogels have been focusing on their use as tissue scaffolding, wound dressings, and drug delivery agents. Polydopamine is formed from the oxidation of dopamine and is attractive as a biomaterial because of the adhesive properties it imparts due to the catechol motif. We proposed polydopamine may behave utility as an antioxidant, as its precursor dopamine has antioxidant properties. We recently developed a method of preparing polysaccharide-polyamine hybrid hydrogels by first reacting the less reactive polysaccharides with the cross-linker epichlorohydrin and completed …

Anterior Insular Cortex Plays A Critical Role In Interoceptive Attention, Xingchao Wang, Qiong Wu, Laura Egan, Xiaosu Gu, Pinan Liu, Hong Gu, Yihong Yang, Jing Luo, Yanhong Wu, Zhixian Gao, Jin Fan

Publications and Research

Accumulating evidence indicates that the anterior insular cortex (AIC) mediates interoceptive attention which refers to attention towards physiological signals arising from the body. However, the necessity of the AIC in this process has not been demonstrated. Using a novel task that directs attention toward breathing rhythm, we assessed the involvement of the AIC in interoceptive attention in healthy participants using functional magnetic resonance imaging and examined the necessity of the AIC in interoceptive attention in patients with AIC lesions. Results showed that interoceptive attention was associated with increased AIC activation, as well as enhanced coupling between the AIC and somatosensory …

“Sankofa Past, Present And Future” Immigration Patterns And Contributions Of Immigrants To The U.S Economy, Oluremi Alapo

Publications and Research

Immigrants migrate to the United States for various reasons - legally and illegally. Some for purposes such as education, economic opportunities, political asylum, while others simply choose to migrate for a change of environment. Franzee (2018) discussed some myths and facts about immigrants and the overall impact of their contributions to the United States economy. Historically, the United States experienced major waves of immigration patterns from Africa and its diaspora. The contributions of Africa and its diaspora to the United States economy are often overlooked largely in part by Africans and the African diaspora itself. This research examines the current …

Listening To What Students Are Asking: The Role Of An Academic Library In Institution-Wide Knowledge Management, Elizabeth Jardine

Publications and Research

Students at our public, urban community college were experiencing difficulties finding correct, consistent answers to their questions about navigating college processes, information students needed to succeed in school. These difficulties were fueled not only by our students’ backgrounds—they are often the first generation in their family to attend college, may require additional academic preparation, or lack support for their higher education dreams—but also by the siloed information environment prevalent in academia. When our college president realized the extent of student challenges in this area, she looked to the college’s librarians, campus experts in knowledge organization and provision, for direction with …

The Serial Blocking Effect: A Testbed For The Neural Mechanisms Of Temporal-Difference Learning, Ashraf Mahmud, Petio Petrov, Guillem R. Esber, Mihaela D. Iordanova

Publications and Research

Temporal-difference (TD) learning models afford the neuroscientist a theory-driven roadmap in the quest for the neural mechanisms of reinforcement learning. The application of these models to understanding the role of phasic midbrain dopaminergic responses in reward prediction learning constitutes one of the greatest success stories in behavioural and cognitive neuroscience. Critically, the classic learning paradigms associated with TD are poorly suited to cast light on its neural implementation, thus hampering progress. Here, we present a serial blocking paradigm in rodents that overcomes these limitations and allows for the simultaneous investigation of two cardinal TD tenets; namely, that learning depends on …

Restore-L Satellite Servicing Internship Final Report, Giovanni Campos

Publications and Research

This paper reviews the Restore-L mission purpose and the necessary research and simulations to meet mission specification for the Propellant Transfer Subsystem (PTS). It is essential the PTS undergoes functionality testing, environmental testing, and calculations to understand the capabilities of the system. For the testing of components from PTS, a proper test setup is required. It is vital for test hardware, such as hoses and valves, to stay in place while the test is being performed. For the test hardware to operate correctly, positioning, orientation, and alignment are critical as well. In addition to the testing, calculations for pressure drop …

Validation Of A Lottery, Xiaona Zhou

Publications and Research

The NY Pick 4 lottery consists of four "randomly" chosen digits from 0 to 9. For this to be fair, each digit should be equally likely to occur. To determine whether this is the case, a Chi-squared goodness of fit test will be applied to historical data. This provides a quantitative way of measuring how well the observed frequency of digits matches our expectations of a fair lottery. We also explore the "Lucky Sum", which is also a part of the Pick 4. We determine which sum is most likely to occur, and what the odds of winning are if …

National Culture And Influences On Leadership Practices [Power Distance Index – Pdi], Oluremi Alapo

Publications and Research

The presenter will discuss power relations, culture, and human behavior in organizational settings based on previous research results on culture and leadership and provide information on new research being conducted on National Culture and Leadership practices. Previous research was based on Hofstede’s five cross - cultural dimension / framework. This new research will look at PDI – Power Distance Index and how it affects the relationship of subordinates to their leaders in new cross-cultural environments. The presenter will present information from a recent pilot study on Power Distance Index and the extent to which a person’s national culture influences (or …

Intersection Of Law, Science, Technology, & The Humanities, Marissa J. Moran, Yu-Wen Chen, Sarah A. Standing

Publications and Research

The challenge of how best to incorporate the wealth of educational/research material currently available through technologies and drawn from the social, cultural, economic, political and legal aspects of our society today has brought together professors from three distinct disciplines and schools at New York City College of Technology, CUNY to research, design, and create innovative new courses and to continually revise content and methodology in existing courses. This dynamic and interdisciplinary approach to learning allows our undergraduate students opportunities to research and apply their knowledge to existing societal issues, in “real-time” to analyze, discuss, and suggest ways to improve upon …

Racism In Modern Information And Communication Technologies, Jessie Daniels

Publications and Research

These are the remarks given at a keynote address at the United Nations, before the 10th session of the Ad Hoc Committee on the Elaboration of Complementary Standards to the International Convention on the Elimination of All Forms of Racial Discrimination, Geneva, Switzerland.

Effects Of Vitamin D3 And Its Chemical Analogs On The Growth Of Hodgkin’S Lymphoma, In Vitro, Rajendra Ghardbaran, Bo Zhang, Luis Valerio, Onyekwere Onwumere, Madeline Wong, Jason Mighty, Stephen Redenti

Publications and Research

Objective: Vitamin D receptor (VDR) activities have been noted for a number of B cell malignancies which showed varying sensitivities to vitamin D3 (1,25-dihydroxyvitamin D3, VD3, calcitriol) and its synthetic analogs. The objective of this study was to address the potential effects of VD3 and vitamin D3 analogs (VDAs) on the growth of Hodgkin’s lymphoma (HL), a malignant pathology of B cell origin, in vitro.

Results: Immunofluorescence staining showed the expression of VDR by primary Hodgkin’s (H) and Reed–Sternberg (RS)—HRS-tumor cells in HL histological sections. Western blot analyses revealed expression of VDR in the HL cell lines Hs445, HDLM2, KMH2, …

What Influences Language Impairement In Bilingual Aphasia? A Meta-Analytic Review, Ekaterina Kuzmina, Mira Goral, Monica Norvik, Brendan S. Weekes

Publications and Research

Patterns of language impairment in multilingual speakers with post-stroke aphasia are diverse: in some cases the language deficits are parallel, that is, all languages are impaired relatively equally, whereas in other cases deficits are differential, that is, one language is more impaired than the other(s). This diversity stems from the intricate structure of the multilingual language system, which is shaped by a complex interplay of influencing factors, such as age of language acquisition, frequency of language use, premorbid proficiency, and linguistic similarity between one’s languages. Previous theoretical reviews and empirical studies shed some light on these factors, however no clear …

Deep Learning Enables Robust Assessment And Selection Of Human Blastocysts After In Vitro Fertilization, Pegah Khosravi, Ehsan Kazemi, Qiansheng Zhan, Jonas E. Malmsten, Marco Toschi, Pantelis Zisimopoulos, Alexandros Sigaras, Stuart Lavery, Lee A. D. Cooper, Cristina Hickman, Marcos Meseguer, Zev Rosenwaks, Olivier Elemento, Nikica Zaninovic, Iman Hajirasouliha

Publications and Research

Visual morphology assessment is routinely used for evaluating of embryo quality and selecting human blastocysts for transfer after in vitro fertilization (IVF). However, the assessment produces different results between embryologists and as a result, the success rate of IVF remains low. To overcome uncertainties in embryo quality, multiple embryos are often implanted resulting in undesired multiple pregnancies and complications. Unlike in other imaging fields, human embryology and IVF have not yet leveraged artificial intelligence (AI) for unbiased, automated embryo assessment. We postulated that an AI approach trained on thousands of embryos can reliably predict embryo quality without human intervention. We …

Creating Oral Health Awareness: Happy Teeth Make Healthy Teeth, Roseanna M. Torres, Dirien Santos, Tatyana Aksaeva, Hanna Jo, Nastassia Liaushun, Anty Lam

Publications and Research

No abstract provided.

Historians On Hamilton: How A Blockbuster Musical Is Restaging America’S Past, Ryan Mckinney

Publications and Research

No abstract provided.

Iverson, Jennifer. 2018. Electronic Inspirations: Technologies Of The Cold-War Musical Avant Garde. New York: Oxford University Press., Theodore B. Gordon

Publications and Research

No abstract provided.