Digital Commons Network^™

The Impact Of Entrepreneurial Orientation On Innovation Performance: The Role Of Knowledge Sharing As A Mediating Factor, Dhia Qasim, Ahmed Shuhaiber, Zainab Rawshdeh

All Works

Innovation is critical for enhancing business products and processes, leading to improved overall performance for firms. Knowledge sharing (KS) plays a crucial role in fostering innovation within firms. Literature has addressed entrepreneurial orientation (EO) and innovation performance (IP) in firms; however, extant literature has not considered the influence of EO on IP in emerging economies. Thus, based on the EO theory, this paper develops a theoretical framework to investigate the influence of EO antecedents on IP within the mediating role of KS. Data were collected from three national telecom companies in Jordan, and 215 responses were analyzed using partial least …

A Theory Of Fundamental Strata For Twisted Formal Connections, Sorawit Viwanthananut

LSU Doctoral Dissertations

Let $G$ be a complex reductive group. A fundamental stratum for $G$ is a triple $(x,r,\beta)$ where $x$ is a point in the Bruhat-Tits building of $G$, $r$ is a nonnegative real number called depth of the stratum, and $\beta$ is a semistable functional on the Moy-Prasad filtration of $\fg$ associated to $x$ at level $r$. Fundamental strata were first introduced to classify admissible representations of a $p$-adic reductive group. More recently, Bremer and Sage have shown that fundamental strata play an important role in the geometric Langlands program and developed a theory of fundamental strata for $G$-connections. In this …

Automated Analysis Of Tie And Dowel Rods In Concrete Using 3dgpr, Alexander Paul Betancourt

Master's Theses (2009 -)

Dowel bars and tie rods in concrete pavement hold concrete together when they are placed and positioned correctly and according to specifications provided by the federal and state departments of transportation. However, unintentional misalignments and omissions during pavement construction can adversely impact the integrity of pavements, leading to cracks and other types of pavement failure. Analyzing the positions of the dowel bars and tie rods, although crucial, can be tedious and laborious. Ground-penetrating radar (GPR) can be used to detect objects within a material of mostly constant permittivity. When GPR is combined with multiple scans across a road, a three-dimensional …

Large Bandgap Observed On The Surfaces Of Euzn2As2 Single Crystals, Dejia Kong, Siavash Karbasizadeh, Ganesh Narasimha, Paras Regmi, Chenggang Tao, Chenggang Tao, Sai Mu, Rama Vasudevan, Ian Harrison, Rongying Jin, Zheng Gai

Faculty Publications

EuZn₂As₂ (M = Zn, Cd, In, Sn etc.) is an excellent material system for studying magnetism-tuned topological properties. However, discrepancies exist between experimental data and theoretical calculations regarding the bulk and surface bandgaps. In this work, cleaved EuZn₂As₂ crystals are studied using scanning tunneling microscopy/spectroscopy and density functional theory calculations. Triangular-shaped defect-induced modifications in the local density of states help distinguish between Eu-terminated and AsZn-terminated surfaces. While large bandgaps ( ~1.5 eV at 77 K) are observed on both pristine surfaces, the bandgap size is found to be highly sensitive to local heterogeneity, tending …

An Upper-Mesopelagic-Zone Carbon Budget For The Subarctic North Pacific, Brandon M. Stephens, Montserrat Roca-Martí, Amy E. Maas, Vinícius J. Amaral, Samantha Clevenger, Shawnee Traylor, Claudia R. Benitez-Nelson, Philip W. Boyd, Ken O. Buesseler, Craig A. Carlson, Nicolas Cassar, Margaret Estapa, Andrea J. Fassbender, Yibin Huang, Phoebe J. Lam, Oliver Marchal, Susanne Menden-Deuer, Nicola L. Paul, Alyson E. Santoro, David A. Siegel, David P. Nicolson

Faculty Publications

Mesopelagic zone (MZ) carbon budgets comparing supply with demand can be difficult to constrain due to the temporal and spatial offsets between key sources and sinks, their associated uncertainties, and potential sampling biases. To address these challenges, the EXport Processes in the Ocean from RemoTe Sensing (EXPORTS) campaign increased the number and variety of simultaneous measurements to monitor temporal variability in the MZ carbon budget using both a Lagrangian frame of reference and long-term autonomous observations. In this study, we collate a comprehensive combination of new and previously published organic carbon supply and demand measurements collected from the surface (5 …

Conversational Systems For Social Care In Older Adults: Protocol For A Scoping Review, Rosiered Brownson-Smith, Ananya Ananthakrishnan, Oksana Hagen, Cen Cong, Amir Aly, Ray B. Jones, Edward Meinert

School of Engineering, Computing and Mathematics

Background: Social care systems worldwide face increasing demographic and financial pressures. This necessitates exploring innovative technological solutions to enhance service delivery without substantially increasing costs. Conversational interfaces, including interactive voice response, chatbots, and voice assistants, have gained traction as a means to improve accessibility and efficiency in social care. The rapid development of large language models such as ChatGPT has further accelerated interest in conversational artificial intelligence (AI). These technologies can offer intuitive interactions, particularly for individuals with limited digital literacy. However, their real-world impact, usability, and ethical considerations in social care remain underexplored. Objective: This scoping review aims to …

Framework For Mapping Sublimation Features On Mars’ South Polar Cap Using Object-Based Image Analysis, Racine D. Cleveland, Vincent F. Chevrier, Jason A. Tullis

Geosciences Faculty Publications and Presentations

Mars’ south polar cap hosts dynamic landforms known as Swiss cheese features (SCFs), which form through the sublimation of carbon dioxide (CO2) ice driven by the planet’s extreme seasonal and diurnal solar insolation cycles. These shallow, rounded depressions—first identified by Mars Global Surveyor in 1999 and later monitored by the Mars Reconnaissance Orbiter (MRO)—have been observed to increase in size over time. However, large-scale analysis of SCF formation and growth has been limited by the slow and labor-intensive nature of manual mapping techniques. This study applies object-based image analysis (OBIA) to automate the detection and measurement of SCFs using High-Resolution …

A Wide-Field Map Of Ultracompact Dwarfs In The Coma Cluster, Richard T. Pomeroy, Juan P. Madrid, Conor R. O’Neill, Alexander T. Gagliano

Physics & Astronomy Faculty Publications

A data set of 23,351 globular clusters (GCs) and ultracompact dwarfs (UCDs) in the Coma cluster of galaxies was built using Hubble Space Telescope Advanced Camera for Surveys data. Based on the standard magnitude cut of MV ≤ −11, a total of 523 UCD candidates are found within this data set of compact stellar systems (CSS). From a color–magnitude diagram analysis built using this catalog, we find a clear mass–magnitude relation extending marginally into the UCD parameter space. The luminosity function defined by this data set shows an excess of sources at bright magnitudes, suggesting a bimodal formation scenario …

Orbital Modulation Of Gamma Rays Up To 100 Tev From Ls 5039, R. Alfaro, M. Araya, J. C. Arteaga-Velázquez, D. Avila Rojas, H. A. Ayala Solares, R. Babu, P. Bangale, E. Belmont-Moreno, A. Bernal, K. S. Caballero-Mora, T. Capistrán, A. Carramiñana, S. Casanova, U. Cotti, J. Cotzomi, S. Coutiño De León, D. Depaoli, P. Desiati, N. Di Lalla, R. Diaz Hernandez, B. L. Dingus, M. A. Duvernois, K. Engel, T. Ergin, C. Espinoza, K. L. Fan, K. Fang, J. A. Garcia-Gonzalez, H. Goksu, A. Gonzalez Munoz, J. A. Gonzalez, M. M. Gonzalez, J. A. Goodman, S. Groetsch, J. P. Harding, S. Hernandez-Cadena, I. Herzog, J. Hinton, D. Huang, F. Hueyotl-Zahuantitla, P. Huntemeyer, S. Kaufmann, D. Kieda, A. Lara, J. Lee, H. Leon Vargas, J. T. Linnemann, A. L. Longinotti, G. Luis-Raya, K. Malone, O. Martinez, J. Martinez-Castro, J. A. Matthews, P. Miranda-Romagnoli, J. A. Morales-Soto, E. Moreno, M. Mustafa, M. Najafi, L. Nellen, M. U. Nisa, N. Omodei, E. Ponce, Y. Perez Araujo, E. G. Perez-Perez, C. D. Rho, A. Rodriguez Parra, D. Rosa-Gonzalez, M. Roth, H. Salazar, D. Salazar-Gallegos, A. Sandoval, M. Schneider, G. Schwefer, J. Serna-Franco, A. J. Smith, Y. Son, R. W. Springer, O. Tibolla, K. Tollefson, I. Torres, R. Torres-Escobedo, R. Turner, E. Varcla, Xiaojie Wang, Z. Wang, I. J. Watson, H. Wu, S. Yu, S. Yun-Carcamo, H. Zhou, C. De Leon

Physics Faculty Research & Creative Works

Gamma-ray binaries are luminous in gamma rays, composed of a compact object orbiting a massive companion star. The interaction between these two objects can drive relativistic outflows, either jets or winds, in which particles can be accelerated to energies reaching hundreds of teraelectronvolts (TeV). However, it is still debated where and under which physical conditions particles are accelerated in these objects and ultimately whether protons can be accelerated up to PeV energies. Among the well-known gamma-ray binaries, LS 5039 is a high-mass X-ray binary with an orbital period of 3.9 days that has been observed up to TeV energies by …

Cmsi Translations #21: How To Achieve A “Soft Landing” For New Recruits Joining Companies, Cai Qingjian, Miao Pingyi, Bao Hanliang

CMSI Translations

With expectations, dreams, and curiosity, in mid-June the new sailors who had enlisted this spring joined their companies. Saying goodbye to boot camp and moving to new posts, some new sailors experienced "acclimatization issues" in the unfamiliar environment. How can we help new comrades smoothly get through the "second adjustment period"? Each unit must carefully monitor the characteristics of the new sailors in addition to guiding and educating them. This issue's “Pathways of Youth” special edition brings you the stories and experiences of naval units as they work to effectively manage the integration of new sailors into their companies.

Aerosol-Cloud Interactions In Cirrus Clouds Based On Global-Scale Airborne Observations And Machine Learning Models, Derek Ngo, Minghui Diao, Ryan J. Patnaude, Sarah Woods, Glenn Diskin

Faculty Research, Scholarly, and Creative Activity

Cirrus cloud formation and evolution are subject to the influences of thermodynamic and dynamic conditions and aerosols. This study developed near global-scale in situ aircraft observational datasets based on 12 field campaigns that spanned from the polar regions to the tropics from 2008 to 2016. Cirrus cloud microphysical properties were investigated at temperatures ≤-40 °C, including ice water content (IWC), ice crystal number concentration (Ni), and number-weighted mean diameter (Di). Positive correlations were found between the fluctuations of these ice microphysical properties and the fluctuations of aerosol number concentrations for larger (>500 nm) and smaller (>100 nm) aerosols …

Re: Comment Letter For The Butte Priority Soils Operable Unit (Bpsou) 2024 Draft Final Backfill And Cover Material Quality Assurance Project Plan (Dated September 27, 2024), Molly Roby

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Navigating Multiple Virtual Teams: How Variety In Communication Rules Affects Knowledge Sharing, Valerio Incerti, Kelly J. Fadel, Elisa Mattarelli, Fabiola Bertolotti, Francesca Bellesia, Paula Ungureanu, Katherine M. Chudoba

Faculty Research, Scholarly, and Creative Activity

In contemporary workplaces, individuals are often members of more than one virtual team at a time, that is, they experience multiple virtual team membership (MVTM), and they are subjected to context variety due to different rules across their teams. The aim of this paper is to understand the relationship between context variety related to communication rules and knowledge sharing in situations of MVTM. We propose that context variety and switching between teams negatively affect the individual capability to acquire and provide knowledge resources in a team, due in part to an increased perception of role overload. Through an experimental study, …

Increasing The Economic And Social Viability Of Carbon Capture Using Biomass Slurry Fracture Injection, Zachary G. Laird

LSU Master's Theses

The climate is changing. This is a fact not a statement, not a theory, and not a falsehood, this is a fact. At the current projections the world’s average temperature is expected to rise by at least 2°C from pre-industrial averages by 2050 (Emissions Pathways to 2100 - Climate Action Tracker, 2024). This temperature rise will be catastrophic for a vast number of communities. What is driving this changing climate? Humans. In particular the carbon emissions caused by human activities. As humans we consume large amounts of meat, causing the need for cattle to increase, generating large amounts …

Networked Behaviors Associated With A Large-Scale Secure Messaging Network: Cross-Sectional Secondary Data Analysis, Laura Rosa Baratta, Linlin Xia, Daphne Lew, Elise Eiden, Y Jasmine Wu, Noshir Contractor, Bruce L Lambert, Sunny S Lou, Thomas Kannampallil

2020-Current year OA Pubs

BACKGROUND: Communication among health care professionals is essential for effective clinical care. Asynchronous text-based clinician communication-secure messaging-is rapidly becoming the preferred mode of communication. The use of secure messaging platforms across health care institutions creates large-scale communication networks that can be used to characterize how interaction structures affect the behaviors and outcomes of network members. However, the understanding of the structure and interactions within these networks is relatively limited.

OBJECTIVE: This study investigates the characteristics of a large-scale secure messaging network and its association with health care professional messaging behaviors.

METHODS: Data on electronic health record-integrated secure messaging use from …

تصميم تعليمي وفق التعلم الخبراتي وأثره في التحصيل وكفاءه التعلم والذكاء الإبداعي في مادة الرياضيات عند طلبة المرحلة الاعدادية . Educational Design Based On Experiential Learning And Its Impact On Achievement, Learning Efficiency, And Creative Intelligence In Mathematics For Middle School Students, سلوى محسن العامري

Association of Arab Universities Journal for Education and Psychology

هدف البحث الى تعرف أثر تصميم تعليمي وفق التعلم الخبراتي في التحصيل وكفاءه التعلم والذكاء الإبداعي في مادة الرياضيات عند طلبة المرحلة الاعدادية.

ولتحقيق هدف البحث وضعت الباحثة الفرضيات الصفرية الاتية:

1- لا يوجد فرق ذا دلالة احصائية عند مستوى الدلالة (0.05) بين متوسطي درجات الطلاب الذين درسوا وفق التعلم الخبراتي (المجموعة التجريبية) وبين الطلاب الذين درسوا نفس المادة بالطريقة الاعتيادية (ألمجموعة ألضابطة) في الاختبار التحصيلي.

2- لا يوجد فرق ذا دلالة إحصائية عند مستوى الدلالة (0.05)، بين متوسطي درجات الطلاب الذين درسوا وفق التعلم الخبراتي (المجموعة التجريبية)، وبين الطلاب الذين درسوا نفس المادة بالطريقة الاعتيادية (المجموعة الضابطة) في مقياس …

تحليل محتوى منهاج الرياضيات للصف الثامن من مرحلة التعليم الأساسي في سورية في ضوء معايير التمثيل الرياضي. Analysis Of The Content Of The Mathematics Curriculum For The Eighth Grade Of Basic Education In Syria In The Light Of Mathematical Representation Standards, ريتا سعيد

Association of Arab Universities Journal for Education and Psychology

هدف البحث إلى تحليل محتوى منهاج الرياضيات للصف الثامن من مرحلة التعليم الأساسي في سورية للعام الدراسي (2024-2025) في ضوء معايير التمثيل الرياضي.

اتبعت الباحثة المنهج الوصفي، حيث استخدمت قائمة معايير التمثيل الرياضي الثلاثة الخاصة بالصفوف (6-9) وفق معايير المجلس الوطني لمعلمي الرياضيات(National Council of Teachers of Mathematics [NCTM], 2000)، بعد ترجمتها إلى اللغة العربية، وقامت الباحثة بكتابة مؤشرات هذه المعايير وبناء أداة تحليل محتوى وتحققت من خصائصها السيكومترية، شمل التحليل جميع دروس كتابي الجبر والهندسة، والذي تضمن 469 فقرة في كتاب الجبر و594 في كتاب الهندسة، وتوصل البحث إلى عدة نتائج، أهمها:

- توفر معيار "تكوين واستخدام التمثيلات لتنظيم …

The Tax Adviser, Volume 11, Number 7, July 1980, American Institute Of Certified Public Accountants

Tax Adviser

No abstract provided.

Life Insurance Companies And The Income Tax: Recent Judicial Developments, Gordon O. Pehrson Jr., Carolyn P. Chiechi, John T. Adney

Tax Adviser

No abstract provided.

Predicting The Impact Of Climate Change On The Distribution Of Monodelphis Domestica (Wagner, 1842), Salise Sepulveda, Noé U. De La Sancha

DePaul Discoveries

Understanding the impact of climate change on species distribution is necessary to properly develop plans that conserve or prepare for maintenance of crucial ecosystems. Monodelphis domestica is a small mammal species native to Argentia, Bolivia, Brazil, and Paraguay. This species is known for its high adaptability and preference for living in wet conditions. Using bioclimatic variables, generalized linear models (GLM), and Coupled Model Intercomparison Project Phase 6 (CMIP6) we predicted how this species distribution will change within the next 75 years under different climate and anthropogenic changes. The results have shown that the distribution of M. domestica will remain relatively …

Measuring And Mapping Spatial Distributions Of Soil Lead Concentrations Across An Urban-To-Rural Gradient In Chicagoland, Lulia Woldemicael, Andrea Stoeva

DePaul Discoveries

Lead (Pb), a highly toxic chemical has found its way into many aspects of our communities through a plethora of different pathways such as paint, gasoline, and industrial activity. Exposure to lead poses harmful risks to all age groups as a higher blood lead level is associated with higher mortality. Although actions have been taken to eliminate lead from the atmosphere, it remains in the environment, especially accumulating in urban areas where the use of automobiles and highly industrialized landscapes are prevalent. This study examines the soil lead concentrations along an urban-to-rural gradient connecting Humboldt Park, Skokie, and Buffalo Grove, …

Fireworks And Wood Combustion Impacts On Air Quality, Iris Keller

DePaul Discoveries

Fire is used as a land management tool to improve ecosystem health and to reduce wildfire risk by lowering tree and litter density. However, prescribed fire as a management practice has faced difficulties with public perception, because of increased awareness of air pollution. Understanding the way that prescribed burns impact air quality and how beneficial they are for ecosystems can help the public to recognize their necessity. This study measured particulate matter (PM) emissions from prescribed burns but also considered other PM sources: fireworks and bonfires. The measurements were conducted in Minnesota, Wisconsin, and the Chicagoland area in the summer …

Factors Motivating Clothing Choice: Environmental Impact Of T-Shirts, Lauren Hunt

DePaul Discoveries

Second only to oil, the fashion industry is one of the most pollutive industries globally. Due to the rise of fast fashion, this environmental issue is continually growing. The level of production has dramatically increased while quality of apparel has decreased, causing shorter garment lifespans. This research utilizes life cycle assessment to identify the environmental impacts of various textiles used in the production of t-shirts, including cotton, polyester, viscose, and elastane. The research scope focuses from material extraction through garment disposal. The life cycle assessment research is paired with a community survey to determine consumer behavioral patterns surrounding clothing consumption …

Environmental Justice And Soil Lead Contamination: Spatial Analysis Across Seven Community Areas, Arsene Lionel Apabaga

DePaul Discoveries

Pb is a pervasive metal with toxicity linked to numerous human health issues. Urban soil is a well-documented environmental sink for Pb, persisting as a legacy pollutant decades after the phaseout of leaded gasoline. This study measured, mapped, and analyzed the spatial distribution of total soil Pb concentrations across seven Chicago Community Areas (CCAs). The objectives were to: (1) assess the relationship between mean soil Pb concentration and mean Community Environmental Justice Index (CEJI) score per CCA, (2) determine the relationship between soil Pb levels and the percentage of industrial land use, and (3) quantify and compare the percentage of …

Values And Barriers: A Multidimensional View Of College Students’ Motivations To Volunteer, Gavin Warner, Quang Anh Nguyen, Ansuk Jeong

DePaul Discoveries

University students tend to have ample access to many resources for volunteering and so are in a unique position among Americans. With all the benefits of volunteering outlined in past research, the students training to become leaders in their fields may have the most to gain from volunteerism. It is surprising, then, to note that young people are less likely to volunteer than other age groups. Why is it that college students tend to volunteer at such low rates? The current study seeks to answer this question through a mixed-methods survey. A qualitative section clarified which specific barriers students felt …

“Put Me In Coach!”: The Impact Of College Sport Team’S Mentorship In Chronically Ill And Disabled Children And Adolescents Adherence To Medical Regimen, Jameela Askira

DePaul Discoveries

The purpose of this study was to see if participation in TeamIMPACT, a program which matches ill children with college sports teams, aided chronically ill children and adolescents in adhering to their treatment regimen. This research is a part of a larger study where 25 child participants were interviewed via Zoom to answer questions regarding their time in the program, peer and family relationships, coping and resilience and other factors. The current study solely analyzed answers to questions regarding adherence to medical treatments. There were three measures: Child vs Parent Response, Treatment Regimen Components and Care Responsibility. Through a descriptive …

Using Synchrotron Wide-Angle X-Ray Scattering To Study Collagen Degradation In Second Metacarpal Bones, Zeel Sheth, Misha Romanov, Ruby Schwieger

DePaul Discoveries

The study examines female human second metacarpal (mc2) bones from early medieval cemetery at Greding, Germany, using high-energy Wide-Angle X-ray Scattering (WAXS) at beamline 1-ID of the Advanced Photon Source (APS) at Argonne National Laboratory. Rietveld refinement showed that carbonated apatite lattice parameters did not correlate with estimated age-at-death. For six of the mc2, widths of 00.2 and 00.4 diffraction peaks were substantially narrower than those of a modern (non-diagenetically altered) mc2 and of the other four ancient mc2. The peak width results are interpreted as indicating that four of the ten ancient mc2 retain substantial collagen and six of …

Conical Radon Transform For Medical Imaging, Olivia Medina

DePaul Discoveries

The 2D Conical Radon transform is an alternate approach to medical imaging that is more efficient than the conventional method used in the PET Scan. Here, a 2D Conical Radon transform is used to reconstruct a function or image from a line integral on a 2-dimensional cone with a fixed angle and axis of symmetry at each data point. Implemented in MATLAB, this method uses a single Reimann Sum to produce images in a faster and less computationally expensive way. The V-Line transform is an alternative understanding of the 2D Conical Radon transform in which it is theoretically proven that …

Modifications To The Spiral Array: A Computational Approach To Music Analysis, Rose Bittle

DePaul Discoveries

The Spiral Array is a geometric model of musical tonality and exists as a tool in computer-aided music analysis. The model was first published in 2000 by Elaine Chew, PhD, in her thesis, Towards a Mathematical Model of Tonality. This project aimed to restructure the Spiral Array, limiting user ambiguity and optimizing the application of musical key finding. The existing model defines pitch, chord, and key location to form a series of spirals dependent on a set of flexible weights. In our research we were able to identify potential issues with the pitch definitions themselves and experiment with methods …

Exact Sampling Of The Six-Vertex Model Using Coupling From The Past, Malaeka Amir

DePaul Discoveries

This paper aims to explore the six-vertex model through simulations designed to investigate the behavior of configurations under specific domain wall boundary conditions. To generate random configurations, we employ the Markov Chain Monte Carlo method while addressing the challenge of mixing times by utilizing the Coupling from the Past (CFTP) algorithm. Implemented in Python, our approach leverages CFTP to ensure exact sampling, avoiding the uncertainty of convergence in traditional Monte Carlo methods. We explore the monotonicity property within this framework and prove that it is only maintained by the steps of this algorithm for very particular values of the parameters.