Physical Sciences and Mathematics Commons^™

Enhanced Acousto-Optic Properties Of Silicon Carbide Based Layered Structure, Namrata Dewan Soni

Al-Bahir

This study investigates the feasibility of using silicon carbide-based layered surface acoustic wave (SAW) devices in acousto-optic applications. The acousto-optic properties of the temperature-stable layered structure TeO3/SiC/128oY-X LiNbO3 are investigated through theoretical analysis. This analysis includes the evaluation of key parameters such as the overlap integral, figure of merit, and diffraction efficiency. The SAW propagation characteristics and field profiles required for these calculations are obtained using SAW software. Results show that the layered structure has high diffraction efficiency of nearly 96% and a promising value for the acousto-optic figure of merit, indicating potential use in low driving power acousto-optic devices. …

Enhancing Video-Based Learning Using Knowledge Tracing: Personalizing Students’ Learning Experience With Orbits, Shady Shehata, David Santandreu, Philip Purnell, Mark Thompson

Natural Language Processing Faculty Publications

As the world regains its footing following the COVID-19 pandemic, academia is striving to consolidate the gains made in students’ education experience. New technologies such as video-based learning have shown some early improvement in student learning and engagement. In this paper, we present ORBITS predictive engine at YOURIKA company, a video-based student support platform powered by knowledge tracing. In an exploratory case study of one master’s level Speech Processing course at the Mohamed Bin Zayed University of Artificial Intelligence (MBZUAI) in Abu Dhabi, half the students used the system while the other half did not. Student qualitative feedback was universally …

Climatic Clustering And Longitudinal Analysis With Impacts On Food, Bioenergy, And Pandemics, John Lagergren, Mikaela Cashman, Verónica G.Melesse Vergara, Paul R. Eller, Joao Gabriel Felipe Machado Gazolla, Hari B. Chhetri, Jared Streich, Sharlee Climer, Peter Thornton, Wayne Joubert, Daniel Jacobson

Computer Science Faculty Works

Predicted growth in world population will put unparalleled stress on the need for sustainable energy and global food production, as well as increase the likelihood of future pandemics. In this work, we identify high-resolution environmental zones in the context of a changing climate and predict longitudinal processes relevant to these challenges. We do this using exhaustive vector comparison methods that measure the climatic similarity between all locations on Earth at high geospatial resolution relative to global-scale analyses. The results are captured as networks, in which edges between geolocations are defined if their historical climate similarities exceed a threshold. We apply …

Search For New Heavy Resonances Decaying To Ww, Wz, Zz, Wh, Or Zh Boson Pairs In The All-Jets Final State In Proton-Proton Collisions At √S=13 Tev, A. Tumasyan

Department of Physics and Astronomy: Faculty Publications

A search for new heavy resonances decaying to WW, WZ, ZZ, WH, or ZHboson pairs in the all-jets final state is presented. The analysis is based on proton-proton collision data recorded by the CMS detector in 2016–2018 at a centre-of-mass energy of 13TeVat the CERN LHC, corresponding to an integrated luminosity of 138fb⁻¹. The search is sensitive to resonances with masses between 1.3and 6 TeV, decaying to bosons that are highly Lorentz-boosted such that each of the bosons forms a single large-radius jet. Machine learning techniques are employed to identify such jets. No significant excess over the estimated …

2023 July 13 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.

Ways To Participate In Ongoing Regulation Around Artificial Intelligence Ethics In The United States, Wilhelmina Randtke

University Libraries: Faculty Presentations

In January 2021, the US passed the National Artificial Intelligence Initiative Act of 2020. The goal is a cohesive federal AI initiative, and part of that is safety, ethics, and transparency. The act includes funding appropriations for 2021-2025, and roll out takes place over that time. In implementing this law, there is recent and ongoing activity to regulate AI in the US. Regular calls for public participation go out to the public on www.federalregister.gov in the form of open ended questions on which input is requested, and feedback on reports or action plans.

The linked data community is uniquely positioned …

Search For Narrow Resonances In The B-Tagged Dijet Mass Spectrum In Proton-Proton Collisions At √S=13 Tev, A. Tumasyan

Department of Physics and Astronomy: Faculty Publications

A search is performed for narrow resonances decaying to final states of two jets, with at least one jet originating from a b quark, in proton-proton collisions at √s = 13 TeV. The data set corresponds to an integrated luminosity of 138 fb⁻¹ collected with theCMS detector at the LHC. Jets originating from energetic b hadrons are identified through a b-tagging algorithm that utilizes a deep neural network or the presence of a muon inside a jet. The invariant mass spectrum of jet pairs is well described by a smooth parametrization and no evidence for the production of …

The Role Of English Language Courses In Media Colleges In Providing Their Graduates With Labor Market Skills: An Applied Study On Graduates Of Middle East University, Mazen Al-Fedawi

The study aimed to identify the degree of contribution of English language courses in providing graduates with the necessary skills by achieving the specifications of the graduate of the Faculty of Mass Communication required in the labor market, and the degree of their acquisition of the professional skills required in the labor market. It also aimed to explore whether there are differences between the acquisition of labor market skills among graduates of mass media faculties due to variables, type of specialization, number of years of work, and gender. The study achieved these objectives through an applied survey study on an …

Skills That Help Employ Media Graduates In The Labor Market From The Point Of View Of Practicing Media Professionals., Mahmoud Al-Rajabi

The study aimed to reveal the most important skills that help to employ graduates of media faculties in the labor market from the point of view of media practitioners. The study used two approaches, the qualitative methodology and the inductive approach, by conducting in-depth interviews with seventeen media practitioners in Jordan, and the sample was taken in an intentional way. The results of the study showed that the skills that a media graduate should possess are both pure media skills and other skills such as research skills, critical thinking skills, content building skills, interpersonal skills, Arabic and media language skills, …

The Role Of Practical Courses In The Faculty Of Media At The Middle East University In Providing Graduates With Labor Market Skills, Ahmad Oreqat, Ramez Abuhasirah

The study aimed at identifying the role of the practical courses at the Faculty of Media at the Middle East University in providing its graduates with skills in the media labor market. The study adopted the media audience survey method. A questionnaire was distributed to an available sample of (48) graduates of the Faculty of Media at Middle East University who practice the media profession. The results showed that practical study courses’ contribution to providing graduates with the required specifications in the labor market came to a high degree, as the most important of these specifications were: “decent and acceptable …

The Academic Training In Media Faculties And Its Implications For Professional Practice: A Field Study On Media Practitioners In Jordanian Media Institutions, Ramez Abuhasirah

This study aimed at identifying the reflection of media academic education on professional practice. The study adopted the audience survey method. A questionnaire was distributed to an available sample of (102) professionals in Jordanian media institutions who hold a media certificate. The study’s results showed that the primary academic education of media professionals was represented in: “the predominance of theoretical aspects over practical aspects in academic courses,” with a mean of (4.30). In contrast, the media skills and practical professional training of professionals in Jordan’s media institutions were represented in: “the reflection of media training on the professional performance of …

The Phenomenon Of Information Flow From Traditional And New Media About The Corona Pandemic From The Perspective Of Newly Graduated Media Professionals In Yemen, Mansour Al-Muntasir

This study aims to explore the external limits of the Corona pandemic in all traditional and new media, which paid attention to this event in a way that the media had not seen before, relying on citizens' participation in the production of news in social media. This study also aims to find out how newly graduated journalists interact with the event on both professional and personal levels, especially with the spread of misinformation and fake news about the Corona virus. The researchers have adopted the qualitative method to obtain deep information from the sample selected by the study, as it …

The Role Of Radio And Television Programmes In Providing Drug Information From The Perspectives Of The Jordanian Public And Pharmaceutical Sector Employees, Obadah Sa’Ad, Omar Al Rashdan, Hanan Al-Shiekh

This study aimed to identify the role of radio and television programmes in providing drug information to the Jordanian society. The study adopted the descriptive analytical approach, and two special questionnaires were developed for the study. The study sample consisted of (287) employees from the pharmaceutical sector (pharmacists, doctors), and (389) members of the Jordanian public who visited Hamzah and Al-Bashir Hospitals in Amman, Jordan. The results of the study concluded that the role of radio and television programmes in providing drug information to the Jordanian society from the viewpoint of the public came to a medium degree, and that …

The Reality Of Media Training In Jordanian Media Institutions From The View Point Of Journalists - A Field Study, Kamel Khurshid Murad, Saddam Al-Mashagbah

The article aimed to identify the reality of media training in Jordanian media institutions from the point of view of journalists in Jordan. It adopted a descriptive approach using a questionnaire distributed to a simple random sample of (66) journalists in the Radio and Television Corporation, Petra Agency, daily newspapers, some electronic news websites, the Journalists Syndicate and some satellite channels. The results revealed that 43.9% of the media institutions have departments for training, and 51.5% are interested in holding training courses at a medium rate. The results also showed that 53.0% of the sample describe the percentage of learning …

The Impact Of Negative Online Rumors On The Attitudes Of The Palestinian Audience Towards The Liberation Of The Six Prisoners: A Content Analysis Of Facebook Pages, Suhair Al Rjoub, Saed Shaheen

This research aims to identify the topics covered by Facebook pages regarding the issue of the six prisoners’ liberation. It deals with the negative impact of rumors on the Palestinian public’s attitudes towards the issue of the six prisoners’ liberation on Facebook through analyzing the content of the pages. In this study, the research used the content analysis tool; the sample of the study included five pages that dealt with the issue of the six prisoners who liberated themselves through a tunnel under Gilboa prison. The research deployed the theory of social responsibility and relied on the “descriptive survey” to …

The Effectiveness Of Media Curricula In Sudanese Universities In Light Of The Challenges And Requirements Of The Labor Market In The Era Of Digital Media From Media Faculties’ Perspectives, Lamia Salah Al Deen Mohammad Ibrahim

This study aimed to identify the effectiveness of the media curricula in Sudanese universities regarding the challenges and the requirements of the labor market in the era of digital media. The researcher used the descriptive analytical approach; an electronic questionnaire form was designed as a tool for data collection. It was distributed to a simple random sample consisting of (40) individuals, representing (45%) of the total study population represented by (95) professors. The study concludes with a number of findings, most importantly are: the degree of effectiveness of the media curricula in Sudanese universities in light of the challenges and …

The Effectiveness Of Interactive Video In Developing Animation Production Skills For Educational Technology Students At Middle East University, Fadi Abdulraheem Odah

This study deals with the effectiveness of interactive video in developing animation production skills among Educational Technology students at Middle East University. The researcher used semi-experimental mothod, where the research sample consisted of (40) students from Educational Technology students at the Faculty of Educational Siences, Middle East University. The sample consisted of two equal groups: a control group of (20) male and female students that were taught in the usual way at laboratories, and an experemental group of (20) students that were taught through interactive vide. The research tools consisted of an observation card to measure the performance. The results …

The Who’S Interest In Its Communication Messages On (Covid-19) Pandemic Via Facebook And Twitter Platforms, Rana Mezher Khalid, Layla Ahmad Jarrar

The study aims to identify the degree of interest of the World Health Organization (WHO) through social networks in dealing with the Covid-19 pandemic on Facebook and Twitter platforms. The theory of media frameworks was implemented, and the content analysis was used as a tool for quantitative and qualitative analysis of the communicative messages of the organization. A deliberate sample was selected, which included all the messages of the World Health Organization during the period from the beginning of the disease until its declaration as a global pandemic, that is: during the period from 30/12/2019 – 11/3/2020, and this time …

Job Satisfaction Among Female Media Professionals In Palestine And The Obstacles They Face In Practicing Their Work, Mohammad Ahmad Injas, Izzat Mohammad Hijab

The study aimed to identify the climates in which Palestinian female media work, identify the obstacles that female media face, and identify their degree of job satisfaction. The study used the descriptive survey method, and the study adopted a questionnaire as a tool for collecting data related to the topic of the research, which was distributed to a random sample of (180) female media professionals out of (206) female media workers, according to the Palestine Journalists Syndicate record for the year 2020. The results of the study showed that the media profession affects the familial and family stability of female …

How The Palestinian Cause Has Been Framed In The Jordanian Opinion Articles, Hani Ahmad Fayez Al-Badri

This study aims to identify the presentation of the Palestinian cause in Jordanian opinion articles published on online news sites representing daily newspapers. In addition to monitoring the topics and issues that have been highlighted, and comparing the similarities and differences between the sample newspapers in discussing this cause. The study uses the media survey methodology and the comparative approach in order to obtain required data and information, and compare the analysis results of the opinion articles in both Alghad and Addustour newspapers. The study population is represented in the opinion articles published on online news sites that represent daily …

The Role Of Jordanian Mass Media In Facing The Rumors From Communication Practitioner’S Perspective: Survey Study, Rami Basem Yousef Haddad, Kamel Khurshid Murad

The study aimed to define role of the Jordanian media in facing rumors as seen by communicators, to identify the most common rumors and the motives behind them. The study adopted the survey method with a questionnaire as a tool for collecting data. The study The study aimed to define role of the Jordanian media in facing rumors as seen by communicators, to identify the most common rumors and the motives behind them. The study adopted the survey method with a questionnaire as a tool for collecting data. The study population consisted of 397 communicators working in official Jordanian media …

Political Participation In Jordan In Light Of The Royal Discussion Papers, Sahar Mohammad Al Tarawneh, Rema Lutfi Abu Hmidan

Effective political participation plays a key role in promoting good democratic governance and the rule of law in order to achieve transparency and the principle of accountability, which contribute mainly to the process of political, economic and social development. This study aims to define political participation and its application forms, and to identify democratic practices and the elements of political participation in Jordan in light of the political reform process and the royal discussion papers. The study also tackles the role of the means of communication and media as a major factor in this process and discusses the opportunities of …

Brief Communication: Is Vertical Shear In An Ice Shelf (Still) Negligible?, Chris Miele, Timothy C. Bartholomaus, Ellyn M. Enderlin

Geosciences Faculty Publications and Presentations

Vertical shear is recognized today as a key component of the stress balance of ice shelves. However, the first ice shelf models were built on the neglect of vertical shear. Partly due to its historical treatment, it remains common to discuss vertical shear as though it were still considered negligible in ice shelf models. Here, we offer a historical perspective on the changing treatment of vertical shear over time, and we emphasize the term's non-negligibility in current ice shelf modeling. We illustrate our discussion in the simplest context of an analytic, isothermal, shallow-ice-shelf model.

Collapse Of The Bindschadler Ice Stream At 11.5 Cal Kyr Bp Via Marine Ice Cliff Instability, Anna Sivils

LSU Master's Theses

Previous studies of the Whales Deep Basin (WDB) outer continental shelf showed that the paleo-ice shelf fronting the Bindschadler Ice Stream broke up at 12.3 cal kyr BP. A calving cliff was subsequently maintained until at least 11.5 cal kyr BP. Slightly after that time, the grounding line rapidly retreated creating a 200 km embayment of grounded ice over the foredeepened middle continental shelf. The rapid opening of the embayment is recorded by a backstepping succession of small-scale morainal ridges on the middle continental shelf. The overlapping and end-to-end spacing of morainal ridges requires that the retreating grounding line experienced …

Nonlinear Optical Studies At Surfaces And Interfaces, Mojgan Dehghani

LSU Doctoral Dissertations

Nonlinear optical studies have revealed that surfaces and interfaces possess unique optical properties due to the lack of inversion symmetry. These properties are significantly different from those of the bulk material. Second harmonic generation (SHG), a second-order nonlinear optical phenomenon, has emerged as a surface-specific technique to study these unique properties. The powerful selection rule allows generation of second harmonic light only in the bulk of noncentrosymmetric media and the regions with broken inversion symmetry, including surfaces and interfaces. The generated second harmonic provides significant information on the electronic and structural properties of the microscopic surface layer at the boundary …

On Solutions Of First Order Pde With Two-Dimensional Dirac Delta Forcing Terms, Ian Robinson

Rose-Hulman Undergraduate Mathematics Journal

We provide solutions of a first order, linear partial differential equation of two variables where the nonhomogeneous term is a two-dimensional Dirac delta function. Our results are achieved by applying the unilateral Laplace Transform, solving the subsequently transformed PDE, and reverting back to the original space-time domain. A discussion of existence and uniqueness of solutions, a derivation of solutions of the PDE coupled with a boundary and initial condition, as well as a few worked examples are provided.

A Thermodynamics-Based Versatile Evapotranspiration Estimation Method Of Minimum Data Requirement For Water Resources Investigations, Jozsef Szilagyi, Richard D. Crago

School of Natural Resources: Faculty Publications

A recent, two-parameter version of the thermodynamically derived complementary relationship (CR) of evaporation has been tested on a monthly basis at 124 FLUXNET stations around the globe. Local, station-by-station calibration explained 91% (R2) of the variance in eddy-covariance (EC) obtained latent-heat fluxes with the same Nash-Sutcliffe efficiency (NSE) value. When the dimensionless Priestley-Taylor parameter (α) was expressed as a universal function (f) of the estimated wet-environment air temperature (Tw), station-by-station calibration of the single dimensionless parameter, b (accounting for moisture advection), yielded an R² value of 87% and NSE of 86%. Global calibration (all stations …

Elucidating Interprotein Energy Transfer Dynamics Within The Antenna Network From Purple Bacteria, Dihao Wang, Olivia C. Fiebig, Dvir Harris, Hila Toporik, Yi Ji, Chern Chuang, Muath Nairat, Ashley L. Tong, John I. Ogren, Stephanie M. Hart, Jianshu Cao, James N. Sturgis, Yuval Mazor, Gabriela S. Schlau-Cohen

Chemistry: Faculty Publications

In photosynthesis, absorbed light energy transfers through a network of antenna proteins with near-unity quantum efficiency to reach the reaction center, which initiates the downstream biochemical reactions. While the energy transfer dynamics within individual antenna proteins have been extensively studied over the past decades, the dynamics between the proteins are poorly understood due to the heterogeneous organization of the network. Previously reported timescales averaged over such heterogeneity, obscuring individual interprotein energy transfer steps. Here, we isolated and interrogated interprotein energy transfer by embedding two variants of the primary antenna protein from purple bacteria, light-harvesting complex 2 (LH2), together into a …

Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Residential Metals Abatement Program (Rmap) Field Sampling Plan (Fsp) – Indoor Dust – Group 8 (Covering Goldhill Lutheran Church [Creativity Factory Preschool] And United Congregational [Crayon Academy Preschool]) (Dated June 30, 2023), Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Machine Learning Approach For Static Ransomware Analysis, Aldin Vehabovic

USF Tampa Graduate Theses and Dissertations

Ransomware is a form of malware which uses encryption methods to make data inaccessible to legitimate users. This cyberthreat has emerged as one of the most serious security challenges today, and a wide range of ransomware families have been developed and deployed, causing immense damage to governments, corporations, and private users. As this malware type continues to expand, governments across the world are taking serious steps to limit its reach. In addition, researchers have proposed a range of ransomware detection and attribution schemes, most of which use advanced machine learning (ML) techniques to process and analyze real-world empirical data from …