Digital Commons Network^™

Effectiveness Variation Of Different Census Outreach Activities: An Empirical Analysis From The State Of Illinois Using Machine Learning And User Interface Technologies For Participatory Data Collection, Anton Rozhkov, Ahoura Zandiatashbar, Dean Massey, Jaeyong Shin, Janet Smith, Moira Zellner

Faculty Research, Scholarly, and Creative Activity

Major social changes stem from policies that their developments heavily rely on public participation in the decennial U.S. Census. For individual states, the population counts determine representation in the U.S. House of Representatives and the amount of federal funding each state receives, leading to state outreach efforts to encourage participation in the census. The present empirical study uses advanced data collection technologies based on a user interface (UI) and machine learning techniques (k-means clustering, random forest, gradient boosting) to analyze the effectiveness of the outreach activities organized by the State of Illinois. As a result, we assess various types of …

Ocean Carbon From Space: Current Status And Priorities For The Next Decade, Robert J.W. Brewin, Shubha Sathyendranath, Gemma Kulk, Marie Hélène Rio, Javier A. Concha, Thomas G. Bell, Astrid Bracher, Cédric Fichot, Thomas L. Frölicher, Martí Galí, Dennis Arthur Hansell, Tihomir S. Kostadinov, Catherine Mitchell, Aimee Renee Neeley, Emanuele Organelli, Katherine Richardson, Cécile Rousseaux, Dustin Carroll, For Full Author List, See Comments Below

Faculty Research, Scholarly, and Creative Activity

The ocean plays a central role in modulating the Earth's carbon cycle. Monitoring how the ocean carbon cycle is changing is fundamental to managing climate change. Satellite remote sensing is currently our best tool for viewing the ocean surface globally and systematically, at high spatial and temporal resolutions, and the past few decades have seen an exponential growth in studies utilising satellite data for ocean carbon research. Satellite-based observations must be combined with in-situ observations and models, to obtain a comprehensive view of ocean carbon pools and fluxes. To help prioritise future research in this area, a workshop was organised …

Quantifying Annual Spatial Consistency In Chick-Rearing Seabirds To Inform Important Site Identification, Martin Beal, Paulo Catry, Richard A. Phillips, Steffen Oppel, John P.Y. Arnould, Maria I. Bogdanova, Mark Bolton, Ana P.B. Carneiro, Corey Clatterbuck, Melinda Conners, Francis Daunt, Karine Delord, Kyle Elliott, Aymeric Fromant, José Pedro Granadeiro, Jonathan A. Green, Lewis Halsey, Keith C. Shaffer, For Full Author List, See Comments Below

Faculty Research, Scholarly, and Creative Activity

Animal tracking has afforded insights into patterns of space use in numerous species and thereby informed area-based conservation planning. A crucial consideration when estimating spatial distributions from tracking data is whether the sample of tracked animals is representative of the wider population. However, it may also be important to track animals in multiple years to capture changes in distribution in response to varying environmental conditions. Using GPS-tracking data from 23 seabird species, we assessed the importance of multi-year sampling for identifying important sites for conservation during the chick-rearing period, when seabirds are most spatially constrained. We found a high degree …

Tensile Behavior Of Layered Rock Disks Under Diametral Loading: Experimental And Numerical Investigations, Mostafa Asadizadeh, Saeed Khosravi, Soheil Abharian, Mehrdad Imani, Jamshid Shakeri, Ahmadreza Hedayat, Nima Babanouri, Taghi Sherizadeh

Mining Engineering Faculty Research & Creative Works

The Tensile Strength and Cracking Behavior of Layered Rocks in a Tensile Stress Field Are One of the Most Significant Characteristics of Rock Masses, Which May Strongly Affect the Stability of Rock Structures. the Study Presented Here Investigated the Effect of Layer Spacing and Inclination Angle on the Indirect Tensile Strength, Crack Development, Failure Pattern, and Contact Force Chain of Layered Disks under Diametral Loading using Experimental and Numerical Investigations. Numerous Experimental Models Made from Plaster Were Examined under Diametral Loading, and a Two-Dimensional Particle Flow Code (PFC2D) Was Adopted for in Depth Simulation of the Failure Process. Both Numerical …

Governance Seams, Brett Frischmann, Paul Ohm

Faculty Publications

This Essay formalizes the concept of governance seams and develops theories for what they enable; how they arise; why they are some- times dismantled; and how, why, and when regulators might step in to protect endangered governance seams or to create new ones. Governance seams are socially constructed boundaries, borders, and interfaces that harness friction-in-design to enable governance. Governance seams mediate interactions among components of sociotechnical systems and between different parties and contexts. Delineating boundaries, borders, and interfaces as loci of transparency, coordination, and oversight supports mechanisms for deliberation, contestation, and protection, both by those within and those outside the …

An In-Vitro Analysis Of The Accuracy Of Different Guided Surgery Systems – They Are Not All The Same, Arndt Guentsch, Jennifer Bjork, Reagan Saxe, Shengtong Han, Andrew R. Dentino

School of Dentistry Faculty Research and Publications

Objectives

Different static computer-assisted implant surgery (sCAIS) systems are available that are based on different design concepts. The objective was to assess seven different systems in a controlled environment.

Materials and Methods

Each n = 20 implants were placed in identical mandible replicas (total n = 140). The systems utilized either drill-handles (group S and B), drill-body guidance (group Z and C), had the key attached to the drill (group D and V), or combined different design concepts (group N). The achieved final implant position was digitized utilizing cone-beam tomography and compared with the planned position. The angular deviation was …

State 4-H Horse Show Entry Packet, Mary Davis

UNH Cooperative Extension

No abstract provided.

Search For Photons Above 1019ev With The Surface Detector Of The Pierre Auger Observatory, P. Abreu, M. Aglietta, I. Allekotte, K. Almeida Cheminant, A. Almela, J. Alvarez-Muñiz, B. Fick, D. Nitz, I. Norwood, A. Puyleart, Et Al.

Michigan Tech Publications, Part 1

We use the surface detector of the Pierre Auger Observatory to search for air showers initiated by photons with an energy above 1019 eV. Photons in the zenith angle range from 30° to 60° can be identified in the overwhelming background of showers initiated by charged cosmic rays through the broader time structure of the signals induced in the water-Cherenkov detectors of the array and the steeper lateral distribution of shower particles reaching ground. Applying the search method to data collected between January 2004 and June 2020, upper limits at 95% CL are set to an E-2 diffuse flux of …

An Intercomparison Of Large-Eddy Simulations Of A Convection Cloud Chamber Using Haze-Capable Bin And Lagrangian Cloud Microphysics Schemes, Fan Yang, Fabian Hoffmann, Raymond Shaw, Mikhail Ovchinnikov, Andrew M. Vogelmann

Michigan Tech Publications, Part 1

Recent in situ observations show that haze particles exist in a convection cloud chamber. The microphysics schemes previously used for large-eddy simulations of the cloud chamber could not fully resolve haze particles and the associated processes, including their activation and deactivation. Specifically, cloud droplet activation was modeled based on Twomey-type parameterizations, wherein cloud droplets were formed when a critical supersaturation for the available cloud condensation nuclei (CCN) was exceeded and haze particles were not explicitly resolved. Here, we develop and adapt haze-capable bin and Lagrangian microphysics schemes to properly resolve the activation and deactivation processes. Results are compared with the …

Constraining The Sources Of Ultra-High-Energy Cosmic Rays Across And Above The Ankle With The Spectrum And Composition Data Measured At The Pierre Auger Observatory, A. Abdul Halim, P. Abreu, M. Aglietta, I. Allekotte, K. Almeida Cheminant, A. Almela, B. Fick, D. Nitz, I. Norwood, A. Puyleart, Et. Al

Michigan Tech Publications, Part 1

In this work we present the interpretation of the energy spectrum and mass composition data as measured by the Pierre Auger Collaboration above 6 × 1017 eV. We use an astrophysical model with two extragalactic source populations to model the hardening of the cosmic-ray flux at around 5 × 1018 eV (the so-called "ankle"feature) as a transition between these two components. We find our data to be well reproduced if sources above the ankle emit a mixed composition with a hard spectrum and a low rigidity cutoff. The component below the ankle is required to have a very soft spectrum …

Lead Scoring Using Low Code Ml Library, Ayad Aziz

Theses

Scoring leads manually can be time-consuming and ineffective because it relies on subjective criteria and human biases. On the other hand, automated lead scoring uses advanced algorithms to analyse large datasets and accurately predict a lead's potential value to the business. It provides valuable insights into customer behaviour and preferences that inform marketing and sales strategies. Machine learning algorithms are trained on historical sales data to identify patterns and correlations that indicate a lead's likelihood to convert. They consider variables like demographic information, web behaviour, and marketing engagement to generate a lead score that reflects the probability of converting into …

Simultaneous And Multiplexed Measurement Of Curvature And Strain Based On Optical Fiber Fabry-Perot Interferometric Sensors, Chen Zhu, Hongkun Zheng, Osamah Alsalman, Wassana Naku, Lingmei Ma

Electrical and Computer Engineering Faculty Research & Creative Works

Optical fiber sensors that have a compact size and the capability for multi-parameter sensing are desired in various applications. This article reports a miniaturized optical fiber Fabry-Perot interferometric sensor with a length of hundreds of µm that is able to simultaneously measure variations of curvature, temperature, and strain. The sensor is easy to fabricate, requiring only the fusion splicing of a short section of the silica capillary tube between two single-mode fibers (SMFs). The combined mechanism of the Fabry-Perot interference occurred in the two interfaces between the capillary and the SMFs, and the Anti resonant guidance induced by the capillary …

Design And Analysis Of Gold-Nanowires Based Multi-Channel Spr Sensor, Nasir Mahmood Anjum, Farhan Mumtaz, Muhammad Aqueel Ashraf

Electrical and Computer Engineering Faculty Research & Creative Works

This research reports the simultaneous multi-analyte sensing capabilities of a D-shaped multi-channel surface plasmon resonance (SPR) sensor. Three channels are truncated in a U-shaped pattern at the side-polished surface of the D-shaped three-core fiber. Three Gold-nanowires (AuNWs) are positioned at the bottom of each sensing channel. To examine the SPR sensor's multi-channel characteristics, a finite element method (FEM) is applied. In order to detect a variety of analytes, y-polarized modes-multiplexing is used, which offers a sufficient wavelength range. At an infiltrated refractive index (RI) of 1.35, 1.38, and 1.41, respectively, the maximal RI sensitivities of c-1 (channel-one), c-2 (channel-two), and …

Optimal Offering Strategy Of Genco With Joint Participation In Ftr Auction And Day-Ahead Market Considering Virtual Bidding, Hossein Mehdipourpicha, Rui Bo, Siyuan Wang

Electrical and Computer Engineering Faculty Research & Creative Works

Nodal price separations in Day-Ahead (DA) market caused by transmission congestion create congestion charges/surplus that are reallocated to the market participants through the financial transmission right (FTR) auction. From a market participant's viewpoint, these two markets are interrelated because the revenue of market participant in FTR auction is determined based on the day-ahead locational marginal prices. Furthermore, virtual transactions which are designed to improve price convergence between the day-ahead and real-time markets can directly impact day-ahead prices. This impact through virtual transactions may be utilized by a market participant to increase its FTR value and improve its overall strategy in …

A Machine Learning Specklegram Wavemeter (Maswave) Based On A Short Section Of Multimode Fiber As The Dispersive Element, Ogbole C. Inalegwu, Rex E. Gerald, Jie Huang

Electrical and Computer Engineering Faculty Research & Creative Works

Wavemeters are very important for precise and accurate measurements of both pulses and continuous-wave optical sources. Conventional wavemeters employ gratings, prisms, and other wavelength-sensitive devices in their design. Here, we report a simple and low-cost wavemeter based on a section of multimode fiber (MMF). The concept is to correlate the multimodal interference pattern (i.e., speckle patterns or specklegrams) at the end face of an MMF with the wavelength of the input light source. Through a series of experiments, specklegrams from the end face of an MMF as captured by a CCD camera (acting as a low-cost interrogation unit) were analyzed …

Machine Learning For A Vernier-Effect-Based Optical Fiber Sensor, Chen Zhu, Osamah Alsalman, Wassana Naku

Electrical and Computer Engineering Faculty Research & Creative Works

In recent years, the optical Vernier effect has been demonstrated as an effective tool to improve the sensitivity of optical fiber interferometer-based sensors, potentially facilitating a new generation of highly sensitive fiber sensing systems. Previous work has mainly focused on the physical implementation of Vernier-effect-based sensors using different combinations of interferometers, while the signal demodulation aspect has been neglected. However, accurate and reliable extraction of useful information from the sensing signal is critically important and determines the overall performance of the sensing system. In this Letter, we, for the first time, propose and demonstrate that machine learning (ML) can be …

The Past, Present, And Future Of Complex Aortic Intervention, Joseph S Coselli

The Texas Heart Institute Journal

No abstract provided.

Leveraging Innovation To Mitigate Risk During Heart Surgery, Marc R Moon, Puja Kachroo

The Texas Heart Institute Journal

No abstract provided.

Multifunctional Additive Manufacturing And Multiphysics Numerical Investigations Of Carbon Fiber Structural Battery Composite Using A Drop-On-Demand Method With In-Situ Consolidation, Xiangyang Dong, Yuekun Chen

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Lightweight Carbon Fiber Structural Battery Composite Has Great Potential in Increasing Structural Energy Storage Efficiency for Multifunctional Applications. However, It is Still Challenging to Design Carbon Fiber Multifunctional Composite Due to Lack of Proper Manufacturing Methods. in This Study, an Integrated Multifunctional Design and Fabrication Approach is Developed by Combining a Drop-On-Demand Additive Manufacturing Method with a Multiphysics Numerical Model to Guide the Development of the New Multifunctional Composite. through Deposition with In-Situ Consolidation, the Function and Thickness of Each Carbon Fiber Layer as Well as its Fiber Volume Fraction Are Accurately Controlled. Decreasing Layer Thickness Improves Flexural Properties. the …

Borderplex Business Barometer, Volume 7, Number 5, Thomas M. Fullerton Jr., Steven L. Fullerton

Border Region Modeling Project

No abstract provided.

Factors That Increase Social Worker Longevity In Child Welfare Services, Heather Lovejoy

Electronic Theses, Projects, and Dissertations

High social worker turnover rates have impacted Child Welfare Services (CWS) for many years and remains a consistent issue. Retaining child welfare social workers is important to effectively serve clientele involved with CWS. This study sought to identify factors that increase social worker longevity in CWS. Using a post-positivist approach, the researcher gathered qualitative data from employees who previously and currently work for CWS in southern California through interviews. The researcher interviewed ten participants. Of those participants, four are no longer employed with a CWS agency and six remained employed with CWS, all with different lengths of employment and came …

School-Based Suicide Prevention Program For Lgbtq Students, Ching Lok Tse

Electronic Theses, Projects, and Dissertations

Purpose: The study focused on the school-based suicide prevention program for LGBTQ students. It aimed to identify risk factors facing LGBTQ students and examine the areas for improvements on the current suicide prevention program to better support LGBTQ students.

Methods: The study was conducted with the support of mental health professionals serving high school students. The study adopted post-positivism and utilized ecological systems theory as the theoretical orientation. Qualitative research instruments including one-on-one interviews were employed for data collection.

Results: Seven themes emerged from this study, including the lack of social support and acceptance, internal struggles with identity in heteronormative …

The Increase Of Suicide Risks Amongst Individuals With Mental Health Disorders During The Covid-19 Pandemic, Joanna Flores

Electronic Theses, Projects, and Dissertations

The COVID-19 pandemic brought on many challenges, one of them being the increase of suicidal ideation among individuals with a mental health diagnosis. This study seeks to determine the key factors that increased suicidal ideation by interviewing clients from a mental health agency. This is an important topic since suicide rates have been steadily increasing throughout the last 19 years. The researcher conducted one-on-one interviews virtually with mental health clinicians at the study site. The themes found in this study were fear of COVID, isolation, anxiety, and depression. A subtheme found in this study was social isolation. Understanding the key …

Parent-Child Attachment When Parenting A Child With A Disability, Giulianna Zocchetti

Electronic Theses, Projects, and Dissertations

Parent-child attachment is a commonly researched topic, but parent-child attachment when a child has a disability has received limited attention in the literature. This study seeks to examine the impact of parenting a child with a disability on parent-child attachment. This study was conducted on a Facebook forum that posts about parenting with children who have developmental disabilities.

This research study used a variety of methods and procedures. First, this study was conducted using quantitative methods. The research used a self-administered survey on the platform SurveyMonkey. The study used snowball sampling to recruit participants. To analyze the data, descriptive and …

Examining Social Determinants Of Health Of Formerly Incarcerated California Students Who Graduated From Project Rebound, Ashley C. Adams

Electronic Theses, Projects, and Dissertations

Project Rebound is an educational based program that supports justice impacted individuals in obtaining higher education. The purpose of this study is to explore specific social determinants of health for these justice impacted students, and how these social determinants may improve after graduation. Specifically, this study will examine participants’ housing, mental health, substance use, employment, and finances during and after their participation in Project Rebound. This study is important, as there is little research on Project Rebound, their alumni, and how social determinants of health may be impacted by enrollment. This study is quantitative, and uses online surveys to gather …

Mental Health Literacy And Attitudes Toward Mental Health Help-Seeking Among College Students Of Non-Mental Health Professions, Hannah Metz

Electronic Theses, Projects, and Dissertations

College students who do not study mental health-related topics are a population that are particularly susceptible to mental health problems due to the stress of higher education and potential lack of mental health literacy. If this population has low levels of mental health literacy, they may not recognize a need to seek help and may be influenced against seeking help due to perceived negative stigma. This study sought to measure the level of mental health literacy among this subpopulation, as well as their attitudes toward seeking help for mental health issues by using a survey questionnaire which included two instruments …

Support For Social Workers Treating Adolescent Substance Abusers, Monica Delucia, Kethura Solano

Electronic Theses, Projects, and Dissertations

This study examines the barriers social workers experience when working with adolescent substance users. Research has not fully explored if intervention techniques are effective or suggest other approaches that may support substance use disorder professionals including supervisor support, training, and intervention. The purpose of this study was to evaluate if social workers who provide interventions to adolescent substance users have the adequate resources to be successful in their field. The literature review provides a better understanding of the common themes social workers experience when working with adolescent substance users.

This study used a qualitative design and interviewed 8 professional social …

Alternative Approaches To Police Interventions When Responding To Mental Health Crises Incidents, Karen Rivera Apolinar

Electronic Theses, Projects, and Dissertations

Purpose: This study explored mental health workers perspectives on alternative approaches in responding to mental health crises.

The study was carried out in Southern California, in collaboration with mental health workers who currently work or previously have worked in mental health crisis. It adopted a post-positivists paradigm and data was gathered through individual interviews with mental health workers who have direct experience with mental health crisis response in the community and with the police. The twenty participants in the study were men and women working in the mental health field, and of various backgrounds, licensures, and ages.

The study found …

Social Workers Perspective On Barriers To Family Reunification, Laura Velasquez, Annamarie C. Merrill

Electronic Theses, Projects, and Dissertations

The focus of this study is social worker’s potential perspective on barriers to family reunification in a child welfare services agency located in Central California. A constructivist research paradigm was applied to this study as it permitted the researchers to use a subjective methodology for collecting qualitative data. The study gathered data using interviews with child welfare social workers to construct a joint understanding of social workers perspective on barriers they face when reunifying child welfare families. Child welfare social workers identified numerous barriers to effective social work both in practice and in policy. The barriers found were a lack …

How Has The Covid-19 Pandemic Impacted Clients Of The Early Development Center, Daniella Loera

Electronic Theses, Projects, and Dissertations

The research project explored the impact of factors that resulted from the COVID-19 pandemic and families and children in the early development center, resulting in a decrease of child attendance. This research sought to analyze the impacts in one community to prepare for future national emergencies across different communities. The study was conducted with clients of a non-profit organization that offers services through their early development center for ages six weeks to five years old. Data was obtained through survey responses from participants to analyze their experiences during the COVID-19 pandemic. Responses were analyzed through statistical analysis using SPSS. The …