Digital Commons Network^™

Perfect Polar Alignment Of Parallel Beloamphiphile Monolayers: Synthesis, Characterization, And Crystal Architectures Of Unsymmetrical Phenoxy-Substituted Acetophenone Azines, Harmeet Bhoday, Michael Lewis, Steven P. Kelley, Rainer Glaser

Chemistry Faculty Research & Creative Works

It remains a great challenge to achieve polar order in organic molecular crystals because anti-parallel alignment of side-by-side molecules is intrinsically preferred. We have addressed this problem with a rational design that focuses on the polar stacking of parallel beloamphiphile monolayers (PBAMs) with strong lateral quadrupole-quadrupole attractions. We employ arene-arene interactions as lateral synthons. The first successes were achieved with unsymmetrical donor (X), acceptor (Y) substituted acetophenone azines which form polar PBAMs with double T-contacts between the azines. Near-perfect alignment was achieved with the methoxy series of (MeO, Y)-azines with Y=Cl, Br, I. Here, we report on the synthesis, the …

Natural 2d Layered Mineral Cannizzarite With Anisotropic Optical Responses, Arindam Dasgupta, Xiaodong Yang, Jie Gao

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Cannizzarite is a naturally occurring mineral formed by van der Waals (vdW) stacking of alternating layers of PbS-like and Bi2S3-like two-dimensional (2D) materials. Although the PbS-type and Bi2S3-type 2D material layers are structurally isotropic individually, the forced commensuration between these two types of layers while forming the heterostructure of cannizzarite induces strong structural anisotropy. Here we demonstrate the mechanical exfoliation of natural cannizzarite mineral to obtain thin vdW heterostructures of PbS-type and Bi2S3-type atomic layers. The structural anisotropy induced anisotropic optical properties of thin cannizzarite flakes are explored through angle-resolved polarized Raman scattering, linear dichroism, and polarization-dependent anisotropic third-harmonic generation. …

Stories: Early Memories, Bob De Smith

Pro Rege

No abstract provided.

Red, White & Blue Boy, David Platter

Pro Rege

No abstract provided.

Gull Point State Park - Milford, Iowa, Jake Van Wyk

Pro Rege

No abstract provided.

Unfinished; A Dance Concert, Robin Suing

Pro Rege

No abstract provided.

Peter And The Starcatcher, Laurel A. Koerner

Pro Rege

No abstract provided.

December, Beth Broderick

Erma Bombeck Writers' Workshop Blog

There is a cold front moving in, and it's bringing the day to darkness early. At 3:30 this afternoon I could have sworn it was 6 p.m. I confess to loving this time of year. I enjoy the spooky quality of night descending whenever it damn well pleases. It is a perfect condition for a month so demanding as December.

Masthead

The University of New Hampshire Law Review

No abstract provided.

A 60-Year March Requires Some Stretching: The Statutory Expansion Of The Civil Rights Act Of 1964, Rachel Coutinho

North Carolina Journal of Law & Technology

No abstract provided.

Corporations On The Couch: Is Therapeutic Disclosure A Kind Of Madness, Bryce C. Tingle

UBC Law Review

No abstract provided.

University Students’ Overall And Domain-Specific Physical Activity During Covid-19: A Cross-Sectional Study In Seven Asean Countries, Areekul Amornsriwatanakul, Hanif Abdul Raman, Apichai Wattanapisit, Ira Nurmala, Ma. Henrietta Teresa O. De La Cruz, Josip Car, Michael Chia

Ateneo School of Medicine and Public Health Publications

This research investigated the overall and domain-specific physical activity (PA) of university students in the coronavirus disease 2019 (COVID-19) pandemic. A cross-sectional study was applied to socioeconomic (SE) and PA online data collected from 15,366 students across 17 universities in seven Association of Southeast Asian Nations (ASEAN) countries. Statistical analyses using logistic regressions established SE–PA relationships. Over half (60.3%) of ASEAN university students met age-span specific PA guidelines. Students participated in recreational PA the most, followed by study-related activities and 44.1% of students engaged in >8 hrs/day of sedentary time (ST). Compared to students with a normal body mass index …

When Advocacy Becomes (In)Voluntary: A Thematic Analysis Of Disability Focused Organizations, Michelle Brazeau

All Theses

Only 19.1% of people with disabilities are currently employed (Bureau of Labor Statistics, 2022b). Stigma associated with disability often forces people with disabilities to have limited options in terms of employment. This has caused organizations like Bitty & Beaus Coffee and The Prospector Theater to make it their mission to hire people with disabilities. To better understand how these organizations are communicating about disability online a thematic analysis of the Instagram pages of Bitty & Beaus Coffee and The Prospector Theater was conducted. The findings suggest that these organizations use the image and likeness of the employees with disabilities to …

Advancing Women For The Presidency In Higher Education: Communication Competencies And Gender, Maria Dwyer, Surabhi Sahay

Journal of Research on the College President

The typical image of the academic president is shifting, with women occupying more presidential offices at colleges and universities, constituting an upward trend toward gender equity. An analysis of communication competencies and behaviors of academic presidents and governing board members in the context of hiring was conducted via interviews and surveys. Universities and colleges in the U.S. that had recently hired new presidents were sampled. Communication skills were identified as important factors that influenced board member’s perceptions of the candidates.

Uab Physicians Use Cardiac Intelligence To Address Health Inequities, Staff

Browse All News

No abstract provided.

Uab Fall Commencement Is Dec. 9-10, Shannon Thomason

Browse All News

No abstract provided.

Amplification Of Inflammation By Lubricin Deficiency Implicated In Incident, Erosive Gout Independent Of Hyperuricemia, Khaled A. Elsaid, Tony R. Merriman, Leigh-Ana Rossitto, Ru Liu-Bryan, Jacob Karsh, Amanda Phipps-Green, Gregory D. Jay, Sandy Elsayed, Marwa Qadri, Marin Miner, Murray Cadzow, Talia J. Dambruoso, Tannin A. Schmidt, Nicola Dalbeth, Ashika Chhana, Jennifer Höglund, Majid Ghassemian, Anaamika Campeau, Nancy Maltez, Niclas G. Karlsson, David J. Gonzalez, Robert Terkeltaub

Pharmacy Faculty Articles and Research

Objective

In gout, hyperuricemia promotes urate crystal deposition that stimulates the NLRP3 inflammasome and IL-1β-mediated arthritis. Incident gout without background hyperuricemia is rarely reported. To identify hyperuricemia-independent mechanisms driving gout incidence and progression, we characterized erosive urate crystalline inflammatory arthritis meeting ACR/EULAR gout classification criteria in a normouricemic young adult female.

Methods

Whole genome sequencing, quantitative proteomics, whole blood RNA-seq, and IL-1β-induced murine knee synovitis characterized proband candidate genes, biomarkers, and pathogenic mechanisms.

Results

Lubricin was attenuated in proband serum, associated with elevated acute phase reactants and inflammatory whole blood transcripts and transcriptional pathways. The proband had predicted damaging gene …

Unh-Assisted Report Highlights Strategies To Keep Kids Safe Online, Robbin Ray

Media Relations

No abstract provided.

Problem Solving For Teachers – Action Research In A Cross-Listed Undergraduate And Graduate Course, Diana Cheng

The Mathematics Enthusiast

This article describes a course-based research experience in a cross-listed mathematical problem solving course for middle school pre-service and in-service teachers. The course was conducted entirely online due to statewide and university restrictions during the coronavirus pandemic. This study examines 4 undergraduate and 5 graduate students’ understanding of mathematical modeling. Undergraduate and graduate students were paired in groups to develop open-ended model-eliciting activities for their classmates to solve, and groups conducted educational action research to analyze their classmates’ work on the activities. We present one group’s activities and their results as an example of how action research can be conducted …

Climate Change And Indigenous Groups: The Rise Of Indigenous Voices In Climate Litigation, Maria Antonia Tigre

Sabin Center for Climate Change Law

Climate change’s pervasive human rights impacts on populations worldwide are widespread and now widely known. One avenue to address these human rights impacts is the growth of rights-based climate litigation. There are now hundreds of cases worldwide grounded on human rights claims. However, less attention has been brought to how vulnerable groups are disproportionally affected by climate change. Indigenous groups, in particular, are disproportionately affected by climate change due to their connection to their land and dependence on their ecosystems. To increase global attention and seek legal remedies to address how Indigenous communities are impacted by climate change, Indigenous groups …

Investigating Some Properties Of Nanocomposites For Dental Restoration Materials, Israa Ghazi, Jawad Oleiwi, Sihama Salih, Mohammed Mutar

Journal of Applied Sciences and Nanotechnology

In this work, it was evaluated the wear resistance, hardness, and surface roughness values of resin-based composites that applied in dentistry as restorative materials. The resin composites were made from six types of resin matrixes (A, B, C, D, E, and F) and each one of them has contained different types and ratios of monomers as well as the inorganic nano-fillers (SiO2, ZrO2, HA, and Al2O3). For each test, thirty specimens were prepared, which were classified into six groups depending on the types of the resin matrix and fillers used in the composites. The results prove that the nanocomposites that …

Fabrication Of Porous Silicon As A Gas Sensor: The Role Of Porous Silicon Surface Morphology, Ahmed Abdullah, Adawiya Haider, Allaa Jabbaar

Journal of Applied Sciences and Nanotechnology

Manufacture of an environmental polluting gas sensor with improved properties by controlling the preparation conditions of the photo-electrochemical etching technique (PECE). The amount of porosity, the diameter of the pores, and the thickness of the prepared layer of porous silicon (Psi) can be controlled by changing one or all of these conditions. In this paper, n-type Si with a crystalline orientation (100) was used, whereby PSi was prepared with the use of a red diode laser with a wavelength of 650 nm, using different radiation intensity, and with the constancy of etching time and current density. Through the results obtained, …

Effect Of Precursor Concentration On The Structural, Optical, And Electrical Properties Of Wo3 Thin Films Prepared By Spray Pyrolysis, Farhan Mohammed, Evan Salim, Azhar Hassan, Mohammed Wahid

Journal of Applied Sciences and Nanotechnology

Using a chemical spray technique, an n-type WO3 polycrystalline thin film was prepared with optimizing parameters (molarity concentration of 80 mM and a substrate temperature of 350 °C). Study the physical properties of WO3 thin film via UV-Visible spectroscopy, XRD, Field Emission-Scanning Electron Microscope, Energy Dispersive X-ray Spectroscopy, Atomic Force Microscopy, and current-voltage. Tungsten oxide was deposited on glass surfaces at different molarities ranging from 50–90mM. In the UV-Visible spectrum of the WO3 thin film, it was found that the transmittance, reflectivity, and energy gap decreased (78%–53%), (9.63%–5.02%), and (3.40eV–2.63 eV), respectively. The X-ray diffraction of the WO3 film at …

Project Management And Systems Engineering Framework For Educational Cubesat Missions, Bailey Garrett

Master's Theses

The rising complexity of CubeSat missions and the unique challenges faced by educational CubeSat programs lead to high rates of mission failure. Implementing project management and systems engineering practices can alleviate these challenges and improve mission success rates for educational CubeSat developers. However, existing project management and systems engineering resources are too cumbersome and often assume the student has a base-level understanding of project management and systems engineering fundamentals. A new universal project management and systems engineering framework was created and tailored specifically to the needs of an educational CubeSat mission. The framework was designed to accommodate first-time CubeSat developers, …

Identifying And Minimizing Underspecification In Breast Cancer Subtyping, Jonathan Cheuk-Kiu Tang

Master's Theses

In the realm of biomedical technology, both accuracy and consistency are crucial to the development and deployment of these tools. While accuracy is easy to measure, consistency metrics are not so simple to measure, especially in the scope of biomedicine where prediction consistency can be difficult to achieve. Typically, biomedical datasets contain a significantly larger amount of features compared to the amount of samples, which goes against ordinary data mining practices. As a result, predictive models may fail to find valid pathways for prediction during training on such datasets. This concept is known as underspecification.

Underspecification has been more accepted …

A Design Of A Digital Lockout Tagout System With Machine Learning, Brandon H. Chen

Master's Theses

Lockout Tagout (LOTO) is a safety procedure instated by the Occupational Safety and Health Administration (OSHA) when doing maintenance on dangerous machinery and hazardous power sources. In this procedure, authorized workers shut off the machinery and use physical locks and tags to prevent operation during maintenance. LOTO has been the industry standard for 32 years since it was instantiated, being used in many different industries such as industrial work, mining, and agriculture. However, LOTO is not without its issues. The LOTO procedure requires employees to be trained and is prone to human error. As well, there is a clash between …

Design Of A System To Investigate The Relationship Between Feedback And Delivery Medium For A Novel Motor Task, Ashley Humpal

Master's Theses

Stroke is a chronic, lifelong illness, and full recovery requires continuous physical and cognitive rehabilitation. Such long-term rehabilitation is cost-prohibitive; however an approach to providing long-term therapy that has recently gained traction is the use of socially assistive agent (SAA) systems. These systems make use of non-contact communication devices and can be used to guide people through a variety of rehabilitative tasks. They have the potential supplement current rehabilitation practices by providing motivation during intense exercises, and can extend the reach of the therapist into remote and home settings.

Though SAA systems have been used in a variety of rehabilitative …

Effects Of Atomic Oxygen On Outgassing Of Silicone Materials, Samuel Westrick

Master's Theses

An important consideration for spacecraft material selection is the space environment that the spacecraft will be operating in. Two features of the space environment that drive material selection are material outgassing and the presence of atomic oxygen in low Earth orbit (LEO). Materials that are considered for use in space are tested to be able to understand how they’ll outgas on orbit and how they’ll respond to interactions with atomic oxygen. However, testing to understand how atomic oxygen interaction with a material will affect how the material will outgas is rare and not standardized. This thesis used a vacuum chamber …

A Study On The Effects Of Cementless Total Knee Arthroscopy Implants' Surface Morphology With Finite Element Analysis, Peter Hunt

Master's Theses

Total knee arthroscopy is one of the most performed and most successful orthopedic surgeries, with nearly a million procedures performed in 2020 in the United States alone. Due to changing patient demographics, the use of cementless fixation for implant stability is becoming more prevalent amongst recipients. Cementless implants rely on the surface morphology of a porous coating to bond implant to bone; the quality of this bond is dependent on an interference fit and the roughness, or coefficient of friction, between implant and bone. Stress shielding is a comparison of the properties in implanted bone to natural bone; it is …

Biodegradation Of Methyl Tert-Butyl Ether And Tert-Butyl Alcohol Using Bioaugmentation With Biowish® Aqua, Elizabeth Villanueva

Master's Theses

Aqua, a commercial product manufactured by BiOWiSH® Technologies, was utilized in this research to study its effectiveness to biodegrade methyl tert-butyl ether (MTBE) and tert-butyl alcohol (TBA). Microcosms containing varying concentrations of MTBE and TBA as well as a growth media and mineral salt solution were examined. Analytical instrumentation used in this study included the use of a gas chromatograph-mass spectrometer (GC/MS) to determine concentrations of MTBE and TBA and a spectrophotometer to extrapolate approximate active biomass concentrations in each experiment. Four different environmental conditions were tested for both MTBE and TBA. The environmental conditions tested for each contaminant included: …