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

Digital Commons Network™

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

Publications and Research

Discipline
Keyword
Publication Year
File Type

Articles 1111 - 1140 of 3083

Full-Text Articles in Entire DC Network

Burning Libraries: A Community Response, Thomas H. Mcgovern Dec 2018

Burning Libraries: A Community Response, Thomas H. Mcgovern

Publications and Research

Archaeology is increasingly seen as a global change science as well as a provider of community heritage resources. Rapid climate change is destroying archaeological sites at an unprecedented rate, and community- based response is urgently needed.


Estudio Contrastivo Intercultural De Las Funciones Retóricas De Las Citas: La Producción De Textos Académicos En El Nivel De Posgrado Escritos En Español E Inglés, David Sánchez-Jiménez Dec 2018

Estudio Contrastivo Intercultural De Las Funciones Retóricas De Las Citas: La Producción De Textos Académicos En El Nivel De Posgrado Escritos En Español E Inglés, David Sánchez-Jiménez

Publications and Research

The main objective of this research is to discover which rhetorical functions were used in the Master´s thesis writing written by eight (8) American and eight (8) Spanish postgraduates in their na-tive language. A computerized tex-tual analysis of the rhetorical func-tion of citation was used to study this phenomenon (Petrić, 2007). The results obtained from the re-search showed that the different cultural conventions in the thesis writing indicate that when com-pared with native Spanish writers, the American writers of English use the highest number of cita-tions, and write a relatively longer Introduction and Conclusion parts. On the other hand, the …


Programmable Time-Domain Digital-Coding Metasurface For Non-Linear Harmonic Manipulation And New Wireless Communication Systems, Jie Zhao, Xi Yang, Jun Yan Dai, Qiang Cheng, Xiang Li, Ning Hua Qi, Jun Chen Ke, Guo Dong Bai, Shuo Liu, Shi Jin, Andrea Alù, Tie Jun Cui Nov 2018

Programmable Time-Domain Digital-Coding Metasurface For Non-Linear Harmonic Manipulation And New Wireless Communication Systems, Jie Zhao, Xi Yang, Jun Yan Dai, Qiang Cheng, Xiang Li, Ning Hua Qi, Jun Chen Ke, Guo Dong Bai, Shuo Liu, Shi Jin, Andrea Alù, Tie Jun Cui

Publications and Research

Optical non-linear phenomena are typically observed in natural materials interacting with light at high intensities, and they benefit a diverse range of applications from communication to sensing. However, controlling harmonic conversion with high efficiency and flexibility remains a major issue in modern optical and radio-frequency systems. Here, we introduce a dynamic time-domain digital-coding metasurface that enables efficient manipulation of spectral harmonic distribution. By dynamically modulating the local phase of the surface reflectivity, we achieve accurate control of different harmonics in a highly programmable and dynamic fashion, enabling unusual responses, such as velocity illusion. As a relevant application, we propose and …


Bad Bunny, Good Scapegoat: How 'El Conejo Malo' Is Stirring A 'Moral Panic' In Post-Hurricane Puerto Rico, Yarimar Bonilla Nov 2018

Bad Bunny, Good Scapegoat: How 'El Conejo Malo' Is Stirring A 'Moral Panic' In Post-Hurricane Puerto Rico, Yarimar Bonilla

Publications and Research

Article examines the Moral Panic around the music of trap artist Bad Bunny in Puerto Rico


The Anti-Fracking Movement And The Politics Of Rural Marginalization In Lithuania: Intersectionality In Environmental Justice, Diana Mincyte, Aiste Bartkiene Nov 2018

The Anti-Fracking Movement And The Politics Of Rural Marginalization In Lithuania: Intersectionality In Environmental Justice, Diana Mincyte, Aiste Bartkiene

Publications and Research

While the environmental justice perspective focuses on the unequal distribution of environmental risks and benefits across different groups based on race, class, or gender, intersectionality approaches avoid the use of a priori categories to examine marginalization. We argue that intersectionality can broaden the scope of environmental justice studies by examining interactive, historically grounded processes through which categories of difference are produced. To support this argument, we present an illustrative case of the movement in Lithuania that challenged Chevron’s plans to prospect shale resources for potential fracking. We conduct a narrative analysis of public discourses surrounding the formation of the movement …


Receiver-Initiated Handshaking Mac Based On Traffic Estimation For Underwater Sensor Networks, Yuan Dong, Lina Pu, Yu Luo, Zheng Peng, Haining Mo, Yun Meng, Yi Zhao, Yuzhi Zhang Nov 2018

Receiver-Initiated Handshaking Mac Based On Traffic Estimation For Underwater Sensor Networks, Yuan Dong, Lina Pu, Yu Luo, Zheng Peng, Haining Mo, Yun Meng, Yi Zhao, Yuzhi Zhang

Publications and Research

In underwater sensor networks (UWSNs), the unique characteristics of acoustic channels have posed great challenges for the design of medium access control (MAC) protocols. The long propagation delay problem has been widely explored in recent literature. However,the long preamble problem with acoustic modems revealed in real experiments brings new challenges to underwater MAC design. The overhead of control messages in handshaking-based protocols becomes significant due to the long preamble in underwater acoustic modems. To address this problem, we advocate the receiver-initiated handshaking method with parallel reservation to improve the handshaking efficiency. Despite some existing works along this direction, the data …


The Application Of Electric Cell-Substrate Impedance Sensing (Ecis) Biosensors, Xudong Zhang, Sunghoon Jang Nov 2018

The Application Of Electric Cell-Substrate Impedance Sensing (Ecis) Biosensors, Xudong Zhang, Sunghoon Jang

Publications and Research

Electric cell-substrate impedance sensing (ECIS) is a label-free and non-invasive technique for analyzing the activities and morphologies of cells. The ECIS sensors are able to measure the impedance spectroscopy of cells attaching on the sensor substrates. The cell activities and morphologies influence the measure impedance directly. Traditional toxicity analysis has complicated processes compared to biosensor-based analysis. In this study, the toxicity analysis was performed with biosensor based on ECIS technique. The experimental results show that the ECIS sensor is able to quickly distinguish the toxic and non-toxic substance.


Il-24 Promotes Apoptosis Through Camp-Dependent Pka Pathways In Human Breast Cancer Cells, Leah Persaud, Jason Mighty, Xuelin Zhong, Ashleigh Francis, Marifer Mendez, Hilal Muharam, Stephen M. Redenti, Dibash Das, Bertal Huseyin Aktas, Moira Sauane Nov 2018

Il-24 Promotes Apoptosis Through Camp-Dependent Pka Pathways In Human Breast Cancer Cells, Leah Persaud, Jason Mighty, Xuelin Zhong, Ashleigh Francis, Marifer Mendez, Hilal Muharam, Stephen M. Redenti, Dibash Das, Bertal Huseyin Aktas, Moira Sauane

Publications and Research

Interleukin 24 (IL-24) is a tumor-suppressing protein, which inhibits angiogenesis and induces cancer cell-specific apoptosis. We have shown that IL-24 regulates apoptosis through phosphorylated eukaryotic initiation factor 2 alpha (eIF2α) during endoplasmic reticulum (ER) stress in cancer. Although multiple stresses converge on eIF2α phosphorylation, the cellular outcome is not always the same. In particular, ER stress-induced apoptosis is primarily regulated through the extent of eIF2α phosphorylation and activating transcription factor 4 (ATF4) action. Our studies show for the first time that cyclic adenosine monophosphate (cAMP)-dependent protein kinase A (PKA) activation is required for IL-24-induced cell death in a variety of …


“College Material” Structural Care At A New York City Transfer School, C. Ray Borck Nov 2018

“College Material” Structural Care At A New York City Transfer School, C. Ray Borck

Publications and Research

Based on ethnographic research at Brooklyn Community High School (BCHS), a transfer high school in New York City I demonstrate that students narrate their educational histories in terms of their experience of care, or lack of care, from teachers. Contributing to research on student-teacher relationships, care, resilience and retention, I develop the concept structural care, arguing that teachers’ ability to demonstrate care for their students, and students’ ability to perceive that care, is enabled or constrained by larger, socio-structural forces such as the national educational policy landscape, widespread cultural beliefs about schools and students, and processes of racialization, criminalization, and …


The Mediating Role Of Health Consciousness In The Relation Between Emotional Intelligence And Health Behaviors, Adriana Espinosa, Selma Kadic-Maglajlic Nov 2018

The Mediating Role Of Health Consciousness In The Relation Between Emotional Intelligence And Health Behaviors, Adriana Espinosa, Selma Kadic-Maglajlic

Publications and Research

The goals of this study were to identify groups of health-related behaviors among young adults (N = 314, Mage = 21.94, SD = 6.53), gauge the relation between emotional intelligence and health behaviors in this population, and assess health consciousness as mediator of said relation. Latent class analysis identified two mutually exclusive health behavior groups, which according to response patterns were labeled as Healthy and Unhealthy.The Healthy group(56%)was composed of individuals who had a healthy diet (i.e.,low fat and high fiber),exercised regularly,and who frequently engaged in behaviors that prevent oral and skin-related diseases. In contrast, the Unhealthy group (44%) rarely …


Voting For Secular Parties In The Middle East: Evidence From The 2014 General Elections In Post-Revolutionary Tunisia, H. Ege Ozen Nov 2018

Voting For Secular Parties In The Middle East: Evidence From The 2014 General Elections In Post-Revolutionary Tunisia, H. Ege Ozen

Publications and Research

Arab uprisings paved the way for democratic elections in the Middle East and

North Africa region. Yet countries in this region, except for Tunisia, were not

able to maintain further democratization. Tunisia, regardless of economic

turbulence and security problems, managed to hold its second parliamentary

elections in October 2014, and Ennahda, the party of the popular Islamist

movement, could not keep mass support. A large number of studies have

examined the rise of the Islamist parties as their electoral success in the post-

Arab Uprisings elections by focusing on their organizational strength as well

as their social services. However, the …


Poor Queer Studies: Class, Race, And The Field, Matt Brim Nov 2018

Poor Queer Studies: Class, Race, And The Field, Matt Brim

Publications and Research

This study asks, What are the material conditions under which queer studies is done in the academy? It finds a longstanding association of queer studies with the well-resourced, selective colleges and flagship campuses that are the drivers of class and race stratification in higher education in the U.S. That is, the field of queer studies, as a recognizable academic formation, has been structured by the material and intellectual resources of precisely those institutions that most steadfastly refuse to adequately serve poor and minority students, including poor and minority queer students. In response, “poor queer studies” calls for a critical reorientation …


Pyronaridine Exerts Potent Cytotoxicity On Human Breast And Hematological Cancer Cells Through Induction Of Apoptosis, Paulina J. Villanueva, Alberto Martinez, Sarah T. Baca, Rebecca E. Dejesus, Manuel Larragoity, Lisett Contreras, Denisse A. Gutierrez, Armando Varela-Ramirez, Renato J. Aguilera Nov 2018

Pyronaridine Exerts Potent Cytotoxicity On Human Breast And Hematological Cancer Cells Through Induction Of Apoptosis, Paulina J. Villanueva, Alberto Martinez, Sarah T. Baca, Rebecca E. Dejesus, Manuel Larragoity, Lisett Contreras, Denisse A. Gutierrez, Armando Varela-Ramirez, Renato J. Aguilera

Publications and Research

The potent antimalarial drug pyronaridine (PND) was tested for its potential as an anticancer drug. After exposing cancerous (17) and non-cancerous (2) cells to PND for 72 hr, PND was found to exhibit consistent and potent cytotoxic activity at low micromolar (μM) concentrations that ranged from 1.6 μM to 9.4 μM. Moreover, PND exerted a significant selective cytotoxicity index (SCI) on five out of seven breast cancer cell lines tested, with favorable values of 2.5 to 4.4, as compared with the non-cancerous breast MCF-10A cell line. By using the same comparison, PND exhibited a significant SCI on three out of …


Microbial Diversity In Urban Environments: Concern For Antibiotic Resistance, Ality Aghedo, Mangala Tawde, Nazrul I. Khandaker Nov 2018

Microbial Diversity In Urban Environments: Concern For Antibiotic Resistance, Ality Aghedo, Mangala Tawde, Nazrul I. Khandaker

Publications and Research

We are almost oblivious to the presence of microorganisms in our daily lives, but they exist and come into contact with us all the time. While some bacteria are harmless, and even beneficial, other bacteria can cause infections. A common treatment to bacterial infections is antibiotics and the success of an antibiotic depends on the resistance of the bacteria to the antibiotic. We conducted experiments to identify the types of bacteria that can be found on surfaces or within soil environments that come into contact with a vast number of people on a daily basis and how this can affect …


An Overview Of Smartwater Management System: Strategic Potential In Bangladesh, Muhammad Qumrul Hassan, Mir F. Karim, Nazrul I. Khandaker, Jowaher Raza Nov 2018

An Overview Of Smartwater Management System: Strategic Potential In Bangladesh, Muhammad Qumrul Hassan, Mir F. Karim, Nazrul I. Khandaker, Jowaher Raza

Publications and Research

Water loss management is becoming an increasingly important as supplies are stressed by population growth or water scarcity. A SmartWater system ensures optimum consumption and prediction of future water use. Bangladesh is one of the most vulnerable countries due to global climate change considering its rapid urbanization, inequitable land use, low income and greater reliance on climate sensitive sectors, particularly agriculture. Agricultural lands used for cropping and livestock rearing are more susceptible to degradation than non-agricultural lands. Most farmers irrigate through flooding, losing up to 75% of water to evaporation and creating a substantial drawdown of much needed water for …


Lithologic Constraints On The Hydrological Parameters Of Regional Aquifers In The Ibb Province, West-Central Region Of Yemen (Middle East), Malek Shami, Zarine Ali, Wedad Abdurabu, Nazrul I. Khandaker, Stanley Schleifer Nov 2018

Lithologic Constraints On The Hydrological Parameters Of Regional Aquifers In The Ibb Province, West-Central Region Of Yemen (Middle East), Malek Shami, Zarine Ali, Wedad Abdurabu, Nazrul I. Khandaker, Stanley Schleifer

Publications and Research

The lithology of the Ibb Province Yemen (Middle East) consists of Precambrian gneissic bedrocks with post-tectonic intrusions of granite and granodiorite. The overall topography is dominated by extensive volcanic extrusions that randomly surround Ibb Province with minimal Mesozoic sedimentary outcrops. According to the Yemen Geological Survey and Mineral Resource Board (YGSMRB), the origin and age of such extrusive bodies that manifest on the surface as dikes, lava flows, and small (currently passive) cinder-cone volcanoes are of Cenozoic age associated with the rifting episode of the Arabian Peninsula and subsequent opening of the Red Sea. The overall aerial extension of the …


Visibly (Un)Just: The Optics Of Grand Jury Secrecy And Police Violence, Nicole Smith Futrell Nov 2018

Visibly (Un)Just: The Optics Of Grand Jury Secrecy And Police Violence, Nicole Smith Futrell

Publications and Research

Police violence has become more visible to the public through racial justice activism and social justice advocates’ use of technology. Yet, the heightened visibility of policing has had limited impact on transparency and accountability in the legal process, particularly when a grand jury is empaneled to determine whether to issue an indictment in a case of police violence. When a grand jury decides not to indict, the requirement of grand jury secrecy prevents public disclosure of the testimony, witnesses, and evidence presented to the grand jury. Grand jury secrecy leaves those who have seen and experienced the act of police …


Between Paralysis And Empowerment: Action In Mathematics For Social Justice Work, Lidia Gonzalez Nov 2018

Between Paralysis And Empowerment: Action In Mathematics For Social Justice Work, Lidia Gonzalez

Publications and Research

In this article, I focus on my experiences teaching a seminar in critical pedagogy and the math for social justice (MfSJ) work that grew from of my students’ reflections as to how they might promote change towards justice. The course was designed to acquaint students with the research literature in critical pedagogy as we explored the social, political, cultural, and economic realities around our system of public education. Yet there came a point where students questioned the value of such exploration as they genuinely considered what to do next. I, too, struggled both to support the students I was working …


Dreamers And Values: An Urban And Suburban Community College Comparison, David A. Caicedo Oct 2018

Dreamers And Values: An Urban And Suburban Community College Comparison, David A. Caicedo

Publications and Research

Although previous research on the role of post-secondary education in the lives of undocumented youth has offered insight regarding demographics, educational achievement, measures of well-being, and generational trajectories, less is known about these young immigrants’ values and beliefs regarding themselves, their relation to others, their futures, and the potential influence of their social surroundings on these values. The intersecting perceptual beliefs between self and higher education were investigated among 7 Deferred Action for Childhood Arrivals (DACA) participants in 2 U.S. community colleges and were hypothesized to reflect two social environments: an urban (New York) and a suburban (New Jersey) setting. …


Maternal Choline And Betaine Supplementation Modifies The Placental Response To Hyperglycemia In Mice And Human Trophoblasts, Khatia Nanobashvili, Chauntelle Jack-Roberts, Rachel Bretter, Naudia Jones, Kathleen Axen, Anjana Saxena, Kali Blain, Xinyin Jiang Oct 2018

Maternal Choline And Betaine Supplementation Modifies The Placental Response To Hyperglycemia In Mice And Human Trophoblasts, Khatia Nanobashvili, Chauntelle Jack-Roberts, Rachel Bretter, Naudia Jones, Kathleen Axen, Anjana Saxena, Kali Blain, Xinyin Jiang

Publications and Research

Gestational diabetes mellitus (GDM) is characterized by excessive placental fat and glucose transport, resulting in fetal overgrowth. Earlier we demonstrated that maternal choline supplementation normalizes fetal growth in GDM mice at mid-gestation. In this study, we further assess how choline and its oxidation product betaine influence determinants of placental nutrient transport in GDM mice and human trophoblasts. C57BL/6J mice were fed a high-fat (HF) diet 4 weeks prior to and during pregnancy to induce GDM or fed a control normal fat (NF) diet. The HF mice also received 25 mM choline, 85 mM betaine, or control drinking water. We observed …


Johnson Practices, Teaches The Art Of Journalism, Aldemaro Romero Jr. Oct 2018

Johnson Practices, Teaches The Art Of Journalism, Aldemaro Romero Jr.

Publications and Research

“While studying abroad in Tanzania, I was fascinated by wildlife, but I realized that I don't really have the temperament to be a scientist. So I decided to come back to the U.S. and become a journalist.” That’s how Emily Johnson settled on what her profession would be.

Johnson is a native of Providence, Rhode Island. She received her bachelor’s degree in English and animal behavior from Bucknell University in Pennsylvania and a master’s in arts and international reporting from the City University of New York Graduate School of Journalism. Today she is an assistant professor in the Department of …


Using Libguides Or Eportfolio As Hosting Platforms For Ztc Courses., Ellen Sexton, Vee Herrington Oct 2018

Using Libguides Or Eportfolio As Hosting Platforms For Ztc Courses., Ellen Sexton, Vee Herrington

Publications and Research

No abstract provided.


Use And Awareness Of Reference Management Software Among Community College Students, Ajatshatru Pathak, Sarah Johnson, Oct 2018

Use And Awareness Of Reference Management Software Among Community College Students, Ajatshatru Pathak, Sarah Johnson,

Publications and Research

This research study investigates the use and awareness of reference management software (RMS) among community college students. An in-person survey was conducted in April and May 2017 at two mid-sized urban public community colleges in New York City. Researchers recruited 124 participants for this survey. The 13-item survey instrument was designed to determine participants’ awareness and use of RMS. The results show a low awareness and use of RMS among community college students regardless of age, gender, race, ethnicity, field of study, undergraduate class level, English proficiency, or academic level. The article discusses areas for further research and suggests strategies …


Radical Digital Media Literacy In A Post-Truth Anti-Trump Era, Alexandra Juhasz Oct 2018

Radical Digital Media Literacy In A Post-Truth Anti-Trump Era, Alexandra Juhasz

Publications and Research

An article about Fake News Poetry workshops as radical digital media literacy given the truth of fake news.


Peaze Up! Adaptation, Innovation, And Variation In German Hip Hop Discourse, Matt Garley Oct 2018

Peaze Up! Adaptation, Innovation, And Variation In German Hip Hop Discourse, Matt Garley

Publications and Research

In this study, I investigate the stylistic use of various forms of the hip hop leave-taking peace in a 12.5-million-word corpus (2000-2011) of German-language Internet hip hop discussions. The English orthography is compared with a number of hybrid variants including, e.g., , , and . I analyze the distribution of these variants over time by comparison to use of the form in an American hip hop forum. I complement these results with a qualitative analysis of peace and its variants as situated in discourse, drawing a connection between linguistic features, discursive use, and corpus distribution. The discourse of German hip …


Zines For Teaching: A Survey Of Pedagogy And Implications For Academic Librarians, Susan E. Thomas Oct 2018

Zines For Teaching: A Survey Of Pedagogy And Implications For Academic Librarians, Susan E. Thomas

Publications and Research

Zines have begun to gain a place in higher education as pedagogical tools studied or made by students, and many academic libraries maintain zine collections. The library literature reveals little about how nonlibrarian faculty use zines in their classrooms. This paper describes the results of a survey of faculty from a range of academic disciplines and professions who teach with zines and other booklet forms. Survey results reveal the extent to which faculty zine pedagogies include collaboration with librarians and use of library collections. Faculty describe instructional activities and attitudes that many library professionals, including reference and instruction librarians, directors …


Understanding Fake News By Teaching With The Game "Factitious"., Sharell Walker Oct 2018

Understanding Fake News By Teaching With The Game "Factitious"., Sharell Walker

Publications and Research

This presentation introduces readers to the online game "Factitious" as a tool for teaching students about fake news. "Facititous" is a collaboration between the American University Game Lab and the American University School of Communication.


The Evidence Of Things Unseen: Experimental Form As Black Feminist Praxis, Shelly J. Eversley Oct 2018

The Evidence Of Things Unseen: Experimental Form As Black Feminist Praxis, Shelly J. Eversley

Publications and Research

This essay reads Carlene Hatcher Polite's little-known experimental novel Sister X and the Victims of Foul Play and situates it within Black Aesthetics and black feminist theory to argue that experimental forms is crucial to black feminist praxis. The form also exposes critical violences that not only diminish and obscure black feminist writing, but also black women writers.


Virtual Special Issue: Contemporary Theories Of Women And Gendered Public Administration And Policy Administrative Theory & Praxis (Introduction), Nicole Elias, Maria J. D'Agostino Oct 2018

Virtual Special Issue: Contemporary Theories Of Women And Gendered Public Administration And Policy Administrative Theory & Praxis (Introduction), Nicole Elias, Maria J. D'Agostino

Publications and Research

Introduction by the authors to Virtual Special Issue: Contemporary Theories of Women and Gendered Public Administration and Policy Administrative Theory & Praxis.


Something Old, Something New: Historicizing Same-Sex Marriage Within Ongoing Struggles Over African Marriage In South Africa, Michael W. Yarbrough Oct 2018

Something Old, Something New: Historicizing Same-Sex Marriage Within Ongoing Struggles Over African Marriage In South Africa, Michael W. Yarbrough

Publications and Research

This article examines contemporary struggles over same-sex marriage in the daily lives of black lesbian- and gay-identified South Africans. Based primarily on 21 in-depth interviews with such South Africans drawn from a larger project on post-apartheid South African marriage, the author argues that their current struggles for relationship recognition share much in common with contemporaneous struggles of their heterosexual counterparts, and that these commonalities reflect ongoing tensions between more extended-family and more dyadic understandings of African marriage. The increasing influence of dyadic understandings of marriage, and of associated ideals of romantic love, has helped inspire same-sex marriage claims and, in …