Digital Commons Network^™

Application Of Remote Sensing In Analyzing Mangrove Forest Changes And Drivers In Mui Ca Mau National Park, Vietnam, Nguyen Thi Huyen, Le Hoang Tu, Phan Thi Ha, Nguyen Kim Duyet, Nguyen Kim Loi

Applied Environmental Research

Mangroves are vital in coastal ecology and for sustaining and securing coastal communities. However, several factors such as human activities and climate change have changed mangroves' quantity and quality. This research analyses land-use/land cover (LULC) changes focusing on mangroves in Mui Ca Mau National Park (MCMNP) from 1995-2022. Collected Landsat imagery in 1995, 2003, and 2022 were applied to perform this research. Overall accuracy and Kappa of land cover classification were 88.5% and 0.86 in 2003, and 87.6% and 0.85 in 2022, respectively. The classified results showed that the mangrove area had increased significantly from 4,316.1 hectares in 1995 to …

Establishing Optimal Machine Learning Models For Monitoring Water Quality In Vietnam’S Upper Ma River, Thanh-Son Ngo, Duc-Loc Nguyen

Applied Environmental Research

This study aims to establish the optimal regression model for predicting total suspended solids (TSS) and Turbidity based on in situ data and spectral regions of Sentinel-2 images. Various machine learning models were evaluated, including Multilayer Perceptron Regression (MLPR), Random Forest Regression (RFR), AdaBoost Regression (ABR), Multiple Linear Regression (MLR), and K-Nearest Neighbors Regression (KNNR). These models were applied to different band combinations of spectral regions: visible (VIS), near-infrared (NIR), shortwave-infrared (SWIR), VIS+NIR (VNIR), and VIS+NIR+SWIR (VNIR+SWIR). The study results revealed that the MLR model, while not the best performer during training (R2 = 0.89 for TSS and R2 = …

Preserving Oral Health, Khrystyna Vyprynyuk, Renata Budny

Publications and Research

No abstract provided.

Restorative Materials And Maintenance Protocols, Renata Budny, Khrystyna Vyprynyuk

Publications and Research

No abstract provided.

Claiming Our Place In The Center: Counterstories Of Women Of Color Open Educational Resources (Oer) Librarians, Regina Gong

Copley Library: Faculty Scholarship

Research has recognized the importance of libraries and librarians in supporting, managing, and sustaining open educational resources (OER) programs in postsecondary institutions. Open education initiatives generally align with social justice aspirations and should be open and inclusive to everyone. Yet, in practice, this has not always been the case. While librarians are considered critical partners in the leadership and management of OER programs and are often heralded as heroes and champions of these initiatives, research has failed to interrogate and discuss the experiences of Women of Color (WOC) doing OER work. In particular, the challenges and often invisible labor that …

Evidence Of A Thick Heliopause Boundary Layer Resulting From Active Magnetic Reconnection With The Interstellar Medium, Drew L. Turner, Adam Michael, Elena Provornikova, Marc Kornbleuth, Merav Opher, Stefan Eriksson, Benoit Lavraud, Parisa Mostafavi, Matthew E. Hill, Pontus Brandt, Ian J. Cohen, Joseph Westlake, John D. Richardson, Nathan A. Schwadron, David J. Mccomas

Faculty Publications

Voyager 1 and 2 data from the vicinity of the heliopause and very local interstellar medium are reexamined to better understand the confounding lack of rotation in the magnetic field (B-field) across the heliopause observed by both Voyagers, despite their very large spatial separations (>100 au). Using three estimates for the orientation of the B-field in the pristine interstellar medium and four models of the heliosphere, we calculate draped interstellar B-field orientations along the model heliopauses and compare those estimates to the Voyager observations. At both Voyagers, expected draped B-fields are inconsistent with the observed B-field orientations after the boundary …

Centering The Needs Of Language Learners Within Educators’ Professional Learning And Development: An Investigation Of Teachers’ Perceptions And Experiences In Meeting The Needs Of Language Learners, Kimberly Tsukiyama

Master's Theses and Doctoral Dissertations

This qualitative study explores K-12 classroom teachers' perceptions and experiences in meeting the needs of language learners, specifically English language learners (ELLs) and dual-language learners (DLLs). Addressing two main research questions, it investigated how teachers' preservice learning and development prepared them for instructing language learners and identified preparatory experiences and professional learning considered beneficial and critical to their development in this area. Through surveys, teacher interviews, and classroom observations, the study highlighted challenges faced by teachers in settings with diverse language populations, including native Japanese, Spanish, and Arabic speakers, as well as native English speakers learning a second language. It …

The Violence Of Free Speech And Press Metaphors, Erin C. Carroll

Georgetown Law Faculty Publications and Other Works

Today, our free speech marketplace is often overwhelming, confusing, and even dangerous. Threats, misdirection, and lies abound. Online firestorms lead to offline violence. This Article argues that the way we conceptualize free speech and the free press are partly to blame: our metaphors are hurting us.

The primary metaphor courts have used for a century to describe free speech—the marketplace of ideas—has been linked to violence since its inception. Originating in a case about espionage and revolution, in a dissent written by Oliver Wendell Holmes, a thrice-injured Civil War veteran, the marketplace has been described as a space where competition …

Examining The Utility Of The Early Childhood Development Index (Ecdi) Among 3- To 4-Year-Olds In The Nigeria Context, Ngozi V. Enelamah, Smitha Rao, Margaret Lombe, Mansoo Yu, Chrisann Newransky, Melissa L. Villodas, Andrew Foell, Von Nebbitt

Faculty Publications

An estimated six million of over 31 million children under five years old are at risk of not reaching their full developmental potential in Nigeria. There is a need for culturally appropriate and context-specific measures to track child development and facilitate intervention planning. This study assessed the utility of the Early Childhood Development Index (ECDI), see Table 1, used in the 2016/2017 round of the Multiple Indicator Cluster Survey (MICS) to track development among 3- to 4-year-old children (n=11,073; 3-year-old, 51%; female, 49%).

Dataset For Varying Intensities Of Acute Aerobic Exercise Effects Immediate And Short-Term Cognitive Functioning, Caroline Curry, Ronald V. Croce, Greg Spicer

Faculty Publications

Introduction: Information processing, cognition, and executive functioning can be enhanced in various ways, one of which is through exercise. The present study investigated the impact of three intensities of aerobic exercise -- low intensity [LIE), moderate intensity [MIE], and higher intensity [HIE]) -- on information processing and executive functioning.

Method: Forty participants (19, male; 21, female) between the ages of 18-25 (mean = 20.75, SD = + 2.56) were randomly assigned to either a non-exercise-control (CON), LIE, MIE, or HIE groups. The exercise was performed on a bike ergometer. Participants took part in (1) single choice (SC), multichoice (MC), and …

The Intersection Of Gender, Caregiving, And Research Productivity During The Covid-19 Pandemic: A Multi-Method Study, Elizabeth A. Moschella-Smith, Sharyn J. Potter

Faculty Publications

The COVID-19 pandemic differentially impacted the productivity of women researchers with children compared to men, with and without children. The purpose of the present study was to examine the relationship between gender, caregiving responsibilities, and research productivity before and during the pandemic. We quantitatively and qualitatively analyzed survey (n=227) and follow-up interview data (n=44) collected from faculty and staff at a Carnegie Classification Research 1 public university. Findings suggest that women researchers with children faced increased caregiving demands and diminished research productivity during the pandemic, compared to men with children and researchers without children. As illustrated by the qualitative data, …

Mandatory Anti-Bias Cle: A Serious Problem Deserves More Meaningful Response, Rima Sirota

Georgetown Law Faculty Publications and Other Works

This essay addresses the problematic convergence of two recent trends: (1) the expansion of jurisdictions requiring anti-bias training (ABT) as part of mandatory continuing legal education (CLE), and (2) the growing recognition among social scientists that such training, at least as currently practiced, is of limited effectiveness.

Forty-six American states require continuing legal education (CLE), and eleven of these states now require lawyer ABT as one facet of CLE requirements. I have previously criticized the mandatory CLE system because so little evidence supports the conclusion that it results in more competent lawyers. The central question tackled by this essay is …

Cultural Property: “Progressive Property In Action”, J. Peter Byrne

Georgetown Law Faculty Publications and Other Works

Cultural property law fulfills many of the normative and jurisprudential goals of progressive property theory. Cultural property limits the normal prerogatives of owners in order to give legal substance to the interests of the public or of specially protected non-owners. It recognizes that preservation of and access to heritage resources advance public values such as cultural enrichment and community identity. The proliferation of cultural property laws and their acceptance by courts has occurred despite a resurgent property fundamentalism embraced by the Supreme Court. Thus, this Article seeks to explicate the category of cultural property, its fulfillment of progressive theory, and …

Large Constellations Of Small Satellites: The Good, The Bad, The Ugly, And The Illegal, David A. Koplow

Georgetown Law Faculty Publications and Other Works

The most exciting and far-reaching contemporary developments regarding human activities in outer space arise from the recent drastic reductions in the costs of building, launching, and operating satellites, and from the concomitant sudden emergence of large constellations of small, inexpensive, privately-owned spacecraft. These satellites--devoted to highly remunerative functions such as communications (bringing high-speed, affordable internet to underserved constituencies), remote sensing (facilitating land use planning, weather forecasting, and emergency search and rescue), and support for military operations (in Ukraine and elsewhere)--already number in the thousands and will soon reach the tens of thousands.

But in addition to generating billions of …

Brown Now: The Surprising Possibility Of Progressive Reform, Louis Michael Seidman

Georgetown Law Faculty Publications and Other Works

For four decades, the Supreme Court has engaged in a determined, systematic and successful effort to transform and tame Brown v. Board of Education. But in this article, written for a symposium on Brown at 70, I suggest a surprising counterweight to the standard narrative. If one takes modern doctrine seriously -- a big if, I concede-- it has the potential to support some progressive goals.

In particular, modern doctrine might provide progressives answers to three questions:

1. Are race-conscious but facially neutral means of increasing diversity at state institutions of higher education constitutional?
2. Are legacy admissions to state run institutions …

The Taylor Swift Effect And International Law, Katrin Kuhlmann

Georgetown Law Faculty Publications and Other Works

Taylor Swift’s Eras Tour has come to an end, but the Taylor Swift Effect will remain a powerful force with influence well beyond even Swift herself. Often used to describe Swift’s economic impact through her fandom, it has become shorthand for the broader network effect that amplifies and extends the reach of her discography and cultural influence. As this article discusses, the Taylor Swift Effect has real implications for international relations and international law at a time when many nations are withdrawing from constructive international engagement, with devastating consequences in terms of global rights, liberties, and norms.

This article explores …

Critical Conversations Of Engaging Withthe Amte Standards, Eva Thanheiser, Jennifer Bay-Williams, Richard Velasco, Liza Bondurant

Mathematics and Statistics Faculty Publications and Presentations

This article is based on an opening plenary session at the Association of Mathematics Teacher Educators (AMTE) 2024 conference in Orlando, Florida, USA. The authors, who delivered the plenary in a panel format, focus specifically on the AMTE standard indicator that addresses power and privilege. This article is the product of the five authors reflecting on their panel and discussing its contents—in the form of this manuscript—with an external Open Reviewer. The result is a “quintalog” of the five authors in critical conversation with each other about their own reflections on the ways in which mathematics teacher educators and the …

‘Routines’ And ‘Formulaic Language’ In Conversation Analysis (Author's Extended Data), Danielle M. Pillet-Shore

Faculty Publications

Though the field of conversation analysis (CA) was founded upon examinations of interactional “routines” such as conversation openings and closings, conceptualizing and categorizing communicative phenomena as “formulaic” is anathema to CA. This chapter details how, since its inception, CA work has empirically elucidated how participants to recorded episodes of naturally occurring social interaction actively and collaboratively accomplish conversational activities as ‘routine’ or not by selecting from available action alternatives, spontaneously coordinating their selections vis-à-vis one another. Taking a multimodal CA approach, this chapter reviews state-of-the art literature on how people open and close in-person and telephone conversations, showing the immense …

On The Role Of Alfvénic Fluctuations As Mediators Of Coherence Within Interplanetary Coronal Mass Ejections: Investigation Of Multi-Spacecraft Measurements At 1 Au, Camilla Scolini, Noé Lugaz, Réka M. Winslow, Charles J. Farrugia, Norbert Magyar, Fabio Bacchini

Faculty Publications

Interplanetary coronal mass ejections (ICMEs) are defined as “coherent” if they are capable of responding to external perturbations in a collective manner. This implies that information must be able to propagate across ICME structures, and if this is not the case, single-point in situ measurements cannot be considered as indicative of global ICME properties. Here, we investigate the role of Alfvénic fluctuations (AFs) as mediators of ICME coherence. We consider multipoint magnetic field and plasma measurements of 10 ICMEs observed by the ACE and Wind spacecraft at 1 au at longitudinal separations of 0.5°–0.7°. For each event, we analyze the …

Yiddish Intelligibility Retention Across The Jewish Diaspora: A Comparison Between Argentina And The U.S., Shannon R. Friel , '24

Senior Theses, Projects, and Awards

U.S. Ashkenazi Jews may call their grandma “bubbe” ([bʊbi]) in Yiddish, but in Argentina they usually call her “bobe” ([βoβe]). Ashkenazi Jewish immigrants brought Yiddish to the U.S. and Argentina, where the language was exposed to English and Spanish and Yiddish speakers lost touch with each other as they assimilated to different cultures far away from one another. This study attempts to answer whether English-Yiddish speakers can understand Yiddish words as produced by a Spanish-Yiddish speaker. U.S. participants completed a perception test, listening to a list of 20 words gathered from two Argentinian consultants and answering a series of questions …

Tokyo-Bot: Emulating Industrial Automation, Erebus Oh , '24, Aaron Omadutt , '24, Dzineon Gyaltsen , '24

Senior Theses, Projects, and Awards

Our E90 project was to design, assemble, and program an omni-directional robot that integrated a web camera to intelligently sort (and ideally transfer from one location to another) colored boxes. The purpose of this project was to simulate an industrial workplace setting where similar types of sorting processes occur, and be able to optimize them. Developing a robot with high maneuverability combined with object detection capabilities could prove to be useful in optimizing workflows in warehouses and processing factories where items constantly need to be located and transported. With three group members, each with their own specializations, the project was …

Carbon Capture Device For Reducing Tailpipe Emissions, Elizabeth Dentzer , '24

Senior Theses, Projects, and Awards

This project explores the design and development of a small-scale CO₂ capture device, aimed at reducing carbon dioxide emissions from vehicle exhaust. The project harnesses a chemical reaction between calcium hydroxide (Ca(OH) ₂) and carbon dioxide (CO₂) to form solid calcium carbonate (CaCO₃), a process known to naturally capture CO₂. The efficiency of this reaction is enhanced by maintaining high humidity within the system from the exhaust gas, which accelerates carbonation and the formation of larger, more crystalline calcium carbonate particles. The design of the CO₂ capture device revolves around a …

Giddy Guidance: Low-Cost 3d Aircraft With Integrated Autopilot And Stabilization, Mark Lohatepanont , '24

Senior Theses, Projects, and Awards

No abstract provided.

Creating Belonging: Fujianese Migrant Community And Transnational Motherhood, Shu Yi Chen , '24

Senior Theses, Projects, and Awards

No abstract provided.

Les Stations De Vacances Des Années 1960-70 : Comment Leur Architecture Moderniste Incarne-T-Elle La France Des Trente Glorieuses ?, Lily V. Fournier , '24

Senior Theses, Projects, and Awards

No abstract provided.

L’Intersection Entre L’Ivresse Et Le Queer Dans La Littérature De La Décadence Française, Ryan Rodriguez , '25

Senior Theses, Projects, and Awards

No abstract provided.

Imaginer La Vie De La Fin De L'Anthropocène Dans La Mort De La Terre, Caroline Lucas , '24

Senior Theses, Projects, and Awards

No abstract provided.

Naviguer L'Altérité Et L'Appartenance Au Milieu De La Modernisation : Les Pygmées Du Cameroun À Travers Le Cinéma, Blaine Thomas , '24

Senior Theses, Projects, and Awards

No abstract provided.

Finding Safe Haven: Church-Centered Communities And Cultural Persistence Among Central American Migrants In Los Angeles, Elmer L. Castillo-Recancoj , '24

Senior Theses, Projects, and Awards

No abstract provided.

Research Report: Radicchio Cultivar Performance In New Hampshire, Rebecca G. Sideman, Ella Lukacz, Lilly Hartman

Faculty Publications

Radicchio (Cichorium intybus var. latifolium) is grown widely throughout Europe, especially northern Italy. In addition to having interesting color and flavor profiles, they are rich in phenolics and other bioactive compounds. While increasingly popular as a niche vegetable in the region, there is little research-based information to guide growers. The New England growing climate is very different from that of major production regions, and it presents unique challenges. There is tremendous phenotypic variation among and within groups and cultivars. The availability of varieties to commercial growers in the U.S. has expanded greatly, but there remains a need for reliable …