Digital Commons Network^™

Inclusive Random Sampling In Graphs And Networks, Yitzchak Novick, Amotz Bar-Noy

Publications and Research

It is often of interest to sample vertices from a graph with a bias towards higher-degree vertices. One well-known method, which we call random neighbor or RN, involves taking a vertex at random and exchanging it for one of its neighbors. Loosely inspired by the friendship paradox, the method is predicated on the fact that the expected degree of the neighbor is greater than or equal to the expected degree of the initial vertex. Another method that is actually perfectly analogous to the friendship paradox is random edge, or RE, where an edge is sampled at random, and then one …

Syllabus For Com 310/Enl 313 Writing For Advertising And Public Relations, Rachel Kovacs

Open Educational Resources

No abstract provided.

Hostos Community College Academic Bulletin 2022-2023, Hostos Community College

College Bulletins

This is the official college catalog for 2022-2023. It contains course descriptions as well as information on degree programs, college resources and services, financial aid, admissions, and the academic calendar.

Soft X-Ray And Susceptibility Based Magnetic Resonance Imaging To Map Iron Distribution In Apples: Initial Results To Model Iron Storage In Water-Deficient Or Dehydrated Biological Tissue, Subhendra N. Sarkar, Eric Lobel, Evans Lespinasse, Zoya Vinokur, Analia Basilicata, Sonia Orellana, Maria Orellana, Aaliyah Salmon, Joanna Syska, Aravis Mcbroom, Jian Wang, Anam Riaz, Jodi-Ann Douglas

Publications and Research

Radiology departments have contributed significantly to greenhouse gases including release of toxic imaging contrast media to environment. We feel Radiology also has several spectroscopy and imaging tools that may apply to monitor and support cleaner environmental goals. The current manuscript is one of the firsts to prompt Radiology to move in that direction by non invasive imaging of bio metals that are less abundant in biological tissues but play key roles as co-factors in tissue structure and function. Conventional analytical tools are mostly invasive and cannot characterize the native oxidation states of bio metals. We chose carbohydrate matrix of metal-rich …

Collecting And Curating Covid-19 Heritage: Challenges Of Conservation And Management, Kelly Britt

Publications and Research

The COVID-19 pandemic raises questions about curation, collecting, and the ethics of documenting a traumatic event as it occurs in real time. Such concerns became clear as the co-authors embarked on a multi-sited study of the pandemic’s impact on four communities in

two different countries. Defining an ‘artefact’ or what is archaeologi- cal, for instance, became a complicated exercise; do chalk artworks

on the sidewalk, painted rocks lining a neighbourhood trail, posters stapled on community billboards, and stuffed animals in someone’s window count as archaeological artefacts? Determining the temporal boundaries of the pandemic is also difficult; while it is fairly …

The Routes Of Introspection, Adriana Renero

Publications and Research

In “What forms could introspective systems take? A research programme”, François Kammerer and Keith Frankish aim to map the space of “possible forms of introspection” while lending themselves to questions about how different kinds of minds represent themselves. This paper aligns with Kammerer and Frankish’s research programme in embracing other possible forms of introspection; it provides an outline of how, in representing its mental states, an introspective system could take a selective, cumulative, and/or predictive route while underscoring the importance of considering routes of introspection. Although this work only explores human minds, it contributes to Kammerer and Frankish’s research programme …

Radiation-Induced Gastrointestinal (Gi) Syndrome As A Function Of Age, Hongyan Li, Herman C. Kucharavy, Carla Hajj, Liyang Zhao, Guoqiang Hua, Ryan Glass, Phillip B. Paty, Zvi Fuks, Richard Kolesnick, Karen Hubbard, Adriana Haimovitz-Friedman

Publications and Research

Previous studies show increased sensitivity of older mice (28–29 months) compared with young adult mice (3 months, possessing a mature immune system) to radiation-induced GI lethality. Age-dependent lethality was associated with higher levels of apoptotic stem cells in small intestinal crypts that correlated with sphingomyelinase activity, a source of pro-apoptotic ceramide. The objective of this study is to determine whether the cycling crypt base columnar cells (CBCs) in aging animals are specifically more sensitive to radiation effects than the CBCs in young adult mice, and to identify factors that contribute to increased radiosensitivity. Mortality induced by subtotal body radiation was …

Ubiquitination Of The Protocadherin-Γa3 Variable Cytoplasmic Domain Modulates Cell-Cell Interaction, Albert Ptashnik, Nicole Lamassa, Aliya Mambetalieva, Emily Schnall, Mike Bucaro, Greg R. Phillips

Publications and Research

The family of ∼60 clustered protocadherins (Pcdhs) are cell adhesion molecules encoded by a genomic locus that regulates expression of distinct combinations of isoforms in individual neurons resulting in what is thought to be a neural surface “barcode” which mediates same-cell interactions of dendrites, as well as interactions with other cells in the environment. Pcdh mediated same-cell dendrite interactions were shown to result in avoidance while interactions between different cells through Pcdhs, such as between neurons and astrocytes, appear to be stable. The cell biological mechanism of the consequences of Pcdh based adhesion is not well understood although various signaling …

Quantity Of Questing Black-Legged Ticks And Associated Micro-Scale Environmental Data Collected From Four Suburban Parks Near New York City, Shipeng Sun, Chong Di, Li Li, Brian Sulkow, Weigang Qiu

Publications and Research

During 2017 and 2018, we collected the quantity of questing black-legged ticks (Ixodes scapularis), also known as deer ticks, in 124 sampling sites of 5m by 5m in four state parks—Caumsett State Historic Park, Connetquot River State Park, Rockefeller State Park, and Fire Island National Seashore—around New York City. The black-legged tick is the primary vector for the spirochete Borrelia burgdorferi, the pathogen of Lyme disease, in Northeastern United States. Using the flagging method, we collected and counted the numbers of adult and nymphal black-legged ticks at each site. Along with these quantities, we also recorded the …

Lead Induced Differences In Bone Properties In Osteocalcin +/+ And −/− Female Mice, G. Yildirim, W. C. Budell, O. Berezovska, S. Yagerman, S. S. Maliath, P. Mastrokostas, S. Tommasini, T. L. Dowd

Publications and Research

Lead (Pb) toxicity is a major health problem and bone is the major reservoir. Lead is detrimental to bone, affects bone remodelingand is associated with elderly fractures. Osteocalcin (OC) affects bone remodeling, improves fracture resistance and decreases with age and in some diseases. The effect of lead in osteocalcin depleted bone is unknown and of interest. We compared bone mineral properties of control and Pb exposed (from 2 to 6 months) femora from female adult C57BL6 OC+/+ and OC−/− mice using Fourier Transform Infrared Imaging (FTIRI), Micro-computed tomography (uCT), bone biomechanical measurements and serum turnover markers (P1NP, CTX). Lead significantly …

The Livornese Slaves In Algiers: The Jewish Question And Political Theatre In Late Eighteenth-Century Tuscany, Francesca Bregoli, Andrea Addobbati

Publications and Research

This essay analyzes a recently discovered French play, Les esclaves livournais à Alger, authored by François Gariel in Livorno in 1786. The protagonist of the piece, which is full of allusions to contemporary Tuscan and European events and subtle references to classics of French Enlightenment literature, is a virtuous, Algiers-based Jewish merchant who preaches toleration for all peoples and religions and greatly admires the grand duke of Tuscany. Important context for understanding Gariel’s play and the Jewish question in Livorno is provided by the relocation in the 1780s of prominent Algerian Jewish families who had built their fortunes on the …

Comparison Of Various Intermittent Fasting Dietary Interventions To The Ketogenic Dietary Interventions And Its Effects In Mitigating Hunger In Obese Adults, Aston Earl Francis Jr

Theses and Dissertations

There have been many dietary strategies that can be used for fat loss and the most recent popular dietary interventions have been intermittent fasting and the ketogenic diet. Intermittent fasting (IF) dietary interventions and the ketogenic diet (KD) are popular diets that claim to promote weight loss which has also been speculated to have enhanced benefits than caloric restriction. Although these dietary strategies are growing in popularity, it is unclear if the intervention can manage hunger, which may increase adherence. The purpose of this paper is to systematically review the literature on the impact of IF protocols compared to KD …

Csi Botany: Dna Barcode “Fingerprints” Identify Cryptic Urban Flora, Luis R. Vega

Theses and Dissertations

As short genomic markers, DNA barcodes can play a role in conservation by identifying cryptic species and hybrids when morphological approaches fall short. Here we present our application of barcodes to the identities of two wetland taxa as part of an ongoing floristic inventory of Van Cortlandt Park (VCP), Bronx, NY. Previous barcode data by Marriott et al. (2018) identified the VCP lake water lily as the exotic Nymphaea alba, rather than the native N. odorata as historically described. In addition, cattails in the park were historically identified as the native Typha latifolia and the exotic T. angustifolia …

Commencement Program, 2023, Cuny John Jay College Of Criminal Justice

Reports and Publications from John Jay College

Commencement Programs are handed out at each graduation. They include information on honorary degrees, awards and prizes and candidates for degree. However, they cannot be considered an official record of conferring of degrees.

Local Power Outages, Heat, And Community Characteristics In New York City, Peter J. Marcotullio, Olta Braçe, Kathryn Lane, Carolyn E. Olson, Jenna Tipaldo, Jennifer Ventrella, Liv Yoon, Kim Knowlton, Gowri Anand, Tom Matte

Publications and Research

Electrical power outages are of increasing interest to US urban scholars, government officials and stakeholders, as they have increased in number and duration with significant health and economic, among other, impacts. This analysis examines reports of power outages in New York City in relation to socioeconomic and health characteristics of neighborhoods. Using the city’s 311-call database we examine complaint calls for power outages from 2014 to 2022. While 311-calls for power outages occur all year long, volume trended higher during the warmer months (June, July and August), and as minimum daily temperatures exceeded 20 °C (68°F), the number of calls …

Spectres Of Women In Wuthering Heights, Corinne H. Shearer

Dissertations and Theses

Central to Emily Brontë’s Wuthering Heights (1847) is its famous haunting scene. As this paper suggests, it is in the haunting scene that the novel’s themes are at their most potent and where Brontë is at her most daring, challenging the socially prescribed, gendered binaries of her time. The primary interest of this paper is in describing the particular power of Brontë’s feminine ghost, an archetypal figure of the female Gothic, using theoretical frameworks from poststructuralism and psychoanalysis. I propose a feminist interpretation of the novel which emphasizes the catalyzing effect of the haunting scene and its reversals– and which …

Measurement Of Fluid Movement Throughout The Brain Via Multiple Magnetic Resonance Imaging Techniques During High-Definition Transcranial Direct Current Stimulation, Jack W. Beaty Mr

Dissertations and Theses

Transcranial Direct Current Stimulation (tDCS) is a non-invasive method of neuromodulation with applications in neuroscience, clinical care, and biomedical engineering. tDCS has been well established as a safe method of applying low amplitude current between two or more electrodes to alter excitation thresholds and neuroplasticity. Recently, in-vitro and clinical studies have suggested that DC stimulation can induce a transient, polarity-specific, effect of increased water exchange across the blood-brain barrier (BBB). The electroosmotic effect, the proposed phenomenon driving water exchange, is a biophysical response of charged ions moving across an oppositely-charged surface, i.e., the tight junction, when subjected to an electric …

Situating The Corrido In Diego Rivera’S Murals At The Ministry Of Public Education, Calla Flood Tardino

Dissertations and Theses

On the top floor of Diego Rivera’s colossal mural cycle at the Ministry of Public Education, the artist painted a matte red banner with the lyrics of revolutionary ballads, known as corridos. Although there is a great amount of scholarship surrounding Rivera and his murals at the Ministry of Public Education, there is a gap in literature about the inclusion of the corrido banner and its significance. By building on the scholarship from art historians (Mary Coffey, Dafne Cruz Porchini, Anna Indych-López), historians and ethnomusicologists (Cati de los Ríos, Maria Herrera-Sobek, Jose Limón, Américo Paredes, Michael Denning), and scholars …

Effects Of The Otx2ecr2 Enhancer & Prox1 Overexpression In Murine Retina Development, Erick J. Subillaga

Dissertations and Theses

There is a large subset of retinal progenitor cells that upregulate the OTX2 gene in the developing retina of the mouse. OTX2 is a homeobox transcription factor important for the development of photoreceptors and bipolar cells. If OTX2 is knocked out, photoreceptors and bipolar cells fail to differentiate. In order for OTX2 to be activated in certain retinal populations, it requires the activity of an enhancer called OTX2ECR2. Past studies demonstrated that retinal progenitor cells that had activity of OTX2ECR2 turned into horizontal cells, which require OTX2 for cell genesis and survival, and photoreceptors which require OTX2 for cell …

Interaction Of Adhd Severity And Neighborhood-Level Ses On Preschoolers’ Risk For Obesity At School-Age, Ramya V. Jayanthi

Dissertations and Theses

Background: Attention-Deficit/Hyperactivity Disorder (ADHD) oftentimes emerges during the preschool years. School-age children with ADHD are at an increased risk for obesity as compared to their non-ADHD peers, but it is unknown if this risk is observed in younger children. Socioeconomic status (SES) is negatively related to both ADHD and obesity, but how SES interacts with ADHD to affect later obesity is unknown. This study aimed to examine if preschool ADHD diagnosis and severity interacted with neighborhood-level SES to increase risk for overweight/obesity and greater growth in BMI at school-age. We hypothesized that ADHD severity/diagnosis would be associated with greater growth …

The Makings Of Creativity And Empathy: Maps Of Maternal Representations, Anielle M. Fredman

Dissertations and Theses

ABSTRACT

The Makings of Creativity and Empathy: Maps of Maternal Representations

by

Anielle M. Fredman

Advisor: Sasha Rudenstine, Ph.D.

The present study investigates the relationship between maternal fantasy of the child and their relationship, and children’s unconscious processes. In addition, the study aims to ascertain the link between maternal representations and aspects of the child’s intrapsychic world, including ego functioning, object relations, and processes of separation-individuation.

Maternal fantasy was measured in an original way with a tripartite typology of Positive, Mixed-Complex, and Contradictory Representations, applied to the Parent Development Interview-Revised Short (Slade et al., 2004), adapted from the Working Model …

Compassion-Based Resilience Training (Cbrt) For Frontline Healthcare Workers In Contact With Covid-19 Patients, Michael Perez Sosa

Dissertations and Theses

Objectives: The COVID-19 pandemic has had deleterious consequences for the mental health of frontline healthcare workers worldwide. One systemic review of the literature found high prevalence rates of anxiety (67.55%), depression (58.89%), and stress (62.99%) reported by this population (Vizheh et al., 2020). Additionally, high rates of burnout and symptoms associated with trauma have also been ubiquitous during the pandemic for frontline healthcare workers. The purpose of this study is to investigate Compassion-Based Resilience Training (CBRT) as a remotely delivered intervention for frontline healthcare workers in contact with COVID-19 patients to reduce symptoms associated with stress, depression, anxiety, burnout, and …

The Moderating Roles Of Racial Discrimination And Covid-19 Stress On The Association Between College Students’ Cannabis Use And Psychosocial Functioning, Shannique Richards

Dissertations and Theses

Abstract

The Moderating Roles of Racial Discrimination and COVID-19 Stress on the Association between College Students’ Cannabis Use and Psychosocial Functioning

By

Shannique Richards, MA

Advisor: Sarah O’Neill, PhD

Greater use of cannabis is linked to poorer psychosocial outcomes. Rates of cannabis use are particularly high in racial/ethnic minoritized (REM) and socioeconomically disadvantaged college students. Cannabis use has been correlated with exposure to trauma. REM and socioeconomically disadvantaged college students report higher rates of trauma exposure, including discrimination and health and social disparities than their White peers. This study examined exposure to two types of potentially traumatic events (racial discrimination …

Immigrant Risk, Self-Discontinuity, And The Role Of Nostalgia, Leila Talhouk

Dissertations and Theses

Background: There are conflicting theories and data about immigrants’ health in the host country (e.g., immigrant risk vs. paradox), which have encouraged researchers to examine more nuanced factors related to immigration to clarify these inconsistencies. This two-part study aimed to shed light on these discrepancies by investigating psychoanalytic concepts that have not yet been empirically tested. The study focuses on immigrant self-discontinuity, a migration- induced disruption in one’s sense of self-sameness and unconscious sense of going-on-being, manifesting in moments of disorientation, disorganization, or dissociative-like experiences. There is no adequate instrument to measure this construct; as such, Part 1 of the …

Auditory Processing Deficits In Msh2-Ko Mice Are Linked To Aberrant Inhibitory Neuron Function In The Thalamic Reticular Nucleus, Sadia N. Rahman

Dissertations and Theses

DNA repair mechanisms are crucial for both cellular development and function. One highly conserved DNA repair factor is Mut-S Homolog 2 (Msh2), which corrects base-base mismatches and insertion/deletion loops. In humans, defects in this repair pathway are linked to diseases that have severe neurological pathologies. These include Lynch syndrome, Huntington’s disease and demyelination of the corpus callosum. The fundamental role of Msh2 in brain function is unknown. Using an Msh2^-/- mouse model we began an exploration of its impact on the processing of sensory information, a crucial function to an animal’s survival. The goal of this …

Ultrastructural Correlates Of Axons And Synapses Belonging To Different Circuits In Ferret Primary Visual Cortex, Anjelique Sawh

Dissertations and Theses

The goal of this study was to determine differences in distinctive layers of mammalian primary visual cortex through analysis of their ultrastructural characteristics. Characterizing brain circuitry using 3-dimensional reconstruction of electron microscopy images, and subsequent ultrastructural analysis of axonal populations provides us with a better understanding of the connectivity of the neural circuits. By quantifying ultrastructural differences in axonal processes such as synaptic densities, types of synapses and their post-synaptic densities (PSDs), mitochondrial volumes, synaptic vesicle aggregates, dendritic targets, and bouton volumes, we aimed to understand whether differences in anatomical specializations among different cortical layers could underlie differences in function …

Assessment Of Material Properties In Bone Surrounding Microdamage, Niovi Dollas

Dissertations and Theses

Bisphosphonates [BPs] are the mainstay for osteoporosis treatment. They suppress bone resorption/remodeling, preventing bone loss. However, BPs also suppress the beneficial bone remodeling that replaces microscopically damaged bone that occurs from normal mechanical wear-and-tear or fatigue, leading to impaired tissue material properties and in some instances atypical femoral fractures.

In these studies, we assessed the effects of acute fatigue, fatigue induced remodeling, and fatigue microdamage with remodeling suppression using the clinical BP, alendronate [ALN], on local bone material properties. Studies were performed on cortical bone sections from rat ulnae into which fatigue damage had been introduced in vivo. Rat …

Use Of Bioheat Modeling To Characterize And Optimize Implantable Medical Devices And Neuromodulation Technologies, Adantchede Louis Zannou

Dissertations and Theses

Medical device development includes prototyping, benchtop characterization, preclinical studies, and clinical trials. Understanding the limitations and potential adverse effects of medical devices prior to their administration in humans is a crucial first step. Optimizing medical devices is essential to employing technology and improving patients care. Computational modeling is widely adopted as a powerful tool to predict stimulation/recording parameter optimization, rapid electrode/device prototyping, investigating novel mechanism of action, and testing working principles of any medical devices. Many implantable neuromodulation technologies including Spinal Cord Stimulation (SCS), which provide substantial therapeutic benefit for patient population with lower back pain, produces heat via the …

Tdcs Effects On Synaptic Plasticity And Motor Skill Learning, Forouzan Vasheghani Farahani

Dissertations and Theses

Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique that involves the application of low-intensity constant current to the brain through electrodes placed on the scalp. Its potential to enhance brain function and treat brain-related disorders has led to its increasing popularity due to its safety, simplicity, and affordability. However, its effectiveness remains a topic of debate.

Analysis Of Chemical Elements In Basalts Using Mislabeled Data, A Machine Learning Approach, Jenifer Vivar

Dissertations and Theses

Scientists use basalt chemistry to discriminate among different tectonic settings. There are well-known chemical elements used to classify tectonic settings. An exploration of new features is done using Logistic Regression and Random Forest to discover any new elements of interest. The models were used with other tools, such as recursive feature elimination and permutations, to increase reliability. Among the scarcely explored chemical elements are Terbium (Tb), Holmium (Ho), Samarium (Sm), and Erbium (Er). The data used for the exploration contained many outliers. Therefore, an ensemble model was created to explore the location and composition of such outliers. The ensemble was …