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A Single Centre Experience Of Local Perforator Flaps In Oncoplastic Breast Surgery: A Cross-Sectional Study, Sana Zeeshan, Lubna Vohra, Uzma Shamsi, Nida Zahid, Danish Ali, Nargis Asad, Cristina Garusi Dec 2022

A Single Centre Experience Of Local Perforator Flaps In Oncoplastic Breast Surgery: A Cross-Sectional Study, Sana Zeeshan, Lubna Vohra, Uzma Shamsi, Nida Zahid, Danish Ali, Nargis Asad, Cristina Garusi

Section of General Surgery

Background & objectives: Various oncoplastic techniques have emerged over the years to preserve breast cosmesis and symmetry without compromising the principles of tumor excision. One of the newer techniques for breast volume replacement to achieve symmetry and cosmesis is the use of fasciocutaneous pedicled chest wall perforator flaps or local perforator flaps (LPF). The objectives of this study were to document the details of the surgical procedure as well as patient-reported satisfaction and well-being following the procedure using a validated BREAST-Q tool among Pakistani women.
Materials & methods: This cross-sectional study was conducted from March 2019 to February 2021 enrolling …

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(R1522) Modelling The Influence Of Desertic Aerosols On The Transmission Dynamics Of Neisseria Meningitidis Serogroup A, Francis Signing, Berge Tsanou, Samuel Bowong Dec 2022

(R1522) Modelling The Influence Of Desertic Aerosols On The Transmission Dynamics Of Neisseria Meningitidis Serogroup A, Francis Signing, Berge Tsanou, Samuel Bowong

Applications and Applied Mathematics: An International Journal (AAM)

This paper assesses the role of desert aerosols and vaccine on the transmission dynamics of Neisseria Meningitis serogroup A (NmA). It is biologically well-documented that the inhalation of aerosol dust and its presence in the nasal cavity weakens the nasopharyngeal mucosa by damaging the mucosal barrier and inhibiting the mucosal immune defenses of susceptible and vaccinated individuals. We address the latter by proposing and analyzing a mathematical model for the dynamics of NmA that specifically accounts for the fast progression of susceptible and vaccinated individuals to the invasive stage of the disease. We compute the basic reproduction number and use …

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Front Matter, Journal Of Law Reform Dec 2022

Front Matter, Journal Of Law Reform

University of Michigan Journal of Law Reform

Front Matter for Volume 55, Issue 2 of Journal of Law Reform

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Masthead Dec 2022

Masthead

Mercer Law Review

No abstract provided.

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Business Associations: Veil Piercing In Georgia, Judd F. Sneirson Dec 2022

Business Associations: Veil Piercing In Georgia, Judd F. Sneirson

Mercer Law Review

This year saw few developments in Georgia corporate law. The one reported case on the topic involved veil piercing and related doctrines—nothing novel, but an opportunity to review and clarify this important area of Georgia law.

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Measuring The Inventor's Contribution Dec 2022

Measuring The Inventor's Contribution

The University of New Hampshire Law Review

All inventors should be compensated for the value of their contributions. Inventors contribute both to the patent system and to the technology commercialization process by providing access to a qualifying disclosure describing a qualifying idea. Yet today, a schism divides the patent world and the commercial world over the value of these inventive contributions. Unlike the commercial world, the patent world pays inventors for the contributions of noninventor technology commercialization roles. In particular, seminal reasonable royalty cases like Georgia-Pacific and TWM Manufacturing allow patentees to recover infringer profits and proxies thereof—in violation of congressional mandate and the Supreme Court’s opinion …

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Creche Herald Vol. 26, No. 4, Rita B. Bocher Dec 2022

Creche Herald Vol. 26, No. 4, Rita B. Bocher

Creche Herald

The Winter 2022 publication features nativity sets and personal reflections from members in the organization; information about nativities and nativity exhibits; and information about the Friends of the Creche annual meeting.

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Environmental Influences On The Growth Of Inland Cisco Populations In Three Minnesota Sentinel Lakes, Edward Carlson Dec 2022

Environmental Influences On The Growth Of Inland Cisco Populations In Three Minnesota Sentinel Lakes, Edward Carlson

Biology Graduate Theses

Cisco Coregonus artedi are a pelagic cold-water fish that are widely distributed throughout many inland lakes across the northern Midwest and play an important role as forage for large piscivores. Inland Cisco populations have been observed to vary in their overall size and recruitment potential based on the system in which they are found. Cisco are sensitive to oxythermal stress and with climate change, land use, and invasive species effects becoming more prevalent in Minnesota, aspects of lake ecosystems are changing, ultimately making Cisco more susceptible to these stressors. To investigate how different factors were affecting the population dynamics of …

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Intuitive Robot Integration Via Virtual Reality Workspaces, Minh Tram Dec 2022

Intuitive Robot Integration Via Virtual Reality Workspaces, Minh Tram

Computer Science and Engineering Theses - Archive

As robots become increasingly prominent in diverse industrial settings, the desire for an accessible and reliable system has correspondingly increased. Yet, the task of meaningfully assessing the feasibility of introducing a new robotic component, or adding more robots into an existing infrastructure, remains a challenge. This is due to both the logistics of acquiring a robot and the need for expert knowledge in setting it up. In this paper, we address these concerns by developing a purely virtual simulation of a robotic system. Our proposed framework enables natural human-robot interaction through a visually immersive representation of the workspace. The main …

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Data Discovery Analysis On Complex Time Series Data, Peter Lawrence Severynen Dec 2022

Data Discovery Analysis On Complex Time Series Data, Peter Lawrence Severynen

Computer Science and Engineering Theses - Archive

Complex time series are a ubiquitous form of data in the modern world. They have wide application across many different fields of scientific inquiry and business endeavor. Time series are used to understand and forecast weather patterns, voting patterns, computer network traffic, population health outcomes, demographic changes, the results of scientific experiments, and the performance of stocks and mutual funds. But time series can be difficult to analyze by conventional methods when the data is multivariate, incomplete, or in different formats. To address these issues, an investigation of several multivariate time series datasets was performed using the methods of automatic …

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Conceptual Design Level Airframe/Propulsion Integration Using The Generic Synthesis Framework Avds., Harinkumar Patel Dec 2022

Conceptual Design Level Airframe/Propulsion Integration Using The Generic Synthesis Framework Avds., Harinkumar Patel

Mechanical and Aerospace Engineering Dissertations - Archive

In the past few decades there has been a significant growth in commercial aerospace transportation encompassing both atmospheric and space flight. In fact, the aircraft industry has seen several generations of engines and vehicles developed. While the space launch sector has switched from exclusively expandable rockets systems to including reusable rocket systems. Now, the current push in the industry is to develop a reusable in-atmosphere hypersonic transportation system. The development of any aircraft entails communicating the interactions among the principal design disciplines (aerodynamics, propulsion, structures, materials, etc.). For hypersonic vehicles, the interdependence of these interactions is enhanced to a level …

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Robust Synthesis Methods For Cooperative Systems, Baris Taner Dec 2022

Robust Synthesis Methods For Cooperative Systems, Baris Taner

Mechanical and Aerospace Engineering Dissertations - Archive

Cooperative systems, like any other dynamic systems, suffer in performance because of uncertainty yet there is an added layer of uncertainty due to the communication among agents. Therefore, analytic solution to these problems are hard if not impossible. With the advancements in the linear and non-linear methods, i.e. linear matrix inequalities (LMI) and non-linear transformations, robust performance analysis and controller synthesis for cooperative systems can be reformulated as optimization problems with LMI constraints as has been done in the last two decades. Another aspect of the problem becomes visible as the cooperative system grows larger and that necessitates faster solution …

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Effect Of Centrifugal Force On The Load Capacity Of Thrust Gas Bearing, Rakan Mohammed Haidar Dec 2022

Effect Of Centrifugal Force On The Load Capacity Of Thrust Gas Bearing, Rakan Mohammed Haidar

Mechanical and Aerospace Engineering Theses - Archive

It has been known for many decades that both rigid and foil thrust bearings are two options in the market for high-speed turbomachinery systems. Their advantages encompass the lower manufacturing cost, the lighter weight, and the flexibility in allowing “component misalignment and runout.” When the operating fluid is air, the classical lubrication theory works perfectly. Any additional terms of the inertia effect might be somehow less significant and sometimes negligible since the viscous forces will be dominant, but this may not be the case if the bearing operates in a harsh environment, such as a high-pressure environment. Nonetheless, this is …

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Energy Analysis Of Rear Door Heat Exchangers In Data Centers With Dynamic Workload Distribution, Sai Abhideep Pundla Dec 2022

Energy Analysis Of Rear Door Heat Exchangers In Data Centers With Dynamic Workload Distribution, Sai Abhideep Pundla

Mechanical and Aerospace Engineering Theses - Archive

In recent years, applications including IoT (Internet of Things), content delivery, and 5G have created a large demand for low-latency access to data processing and data storage. Traditional centralized data centers weren’t designed with those use cases in mind. Small data centers such as edge computing data centers and colocation data centers house more than half of all servers across the United States. Rear Door Heat exchangers (RDHx) provide an energy-efficient cooling solution to traditional CRAC/CRAH - based cooling methods by localizing the heat removal from the rack. With more control over air distribution through a shorter path between the …

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Numerical Analysis Of Hybrid Server Immersed In Synthetic Dielectric Fluid, Bhavana Reddy Mandadi Dec 2022

Numerical Analysis Of Hybrid Server Immersed In Synthetic Dielectric Fluid, Bhavana Reddy Mandadi

Mechanical and Aerospace Engineering Theses - Archive

In recent years there has been a phenomenal development in cloud computing, networking, virtualization, and storage, which has increased the demand for data centers. With this increase, there is a demand for higher CPU (Central Processing Unit) performance and an increase in the Thermal Design Power (TDP). Maintaining the CPU temperature within the specified parameters for air-cooled servers is a challenge in thermal engineering (due to performance). One of the components of the Data Centers with the largest energy consumption is the cooling system, which uses over 40% of the energy. Advancements in DRAMs and the increased support of CPUs …

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Conceptual Gas Turbine Hybrid Engine Design For High Speed Rail Locomotive Propulsion, Frank Roger Tennyson Dec 2022

Conceptual Gas Turbine Hybrid Engine Design For High Speed Rail Locomotive Propulsion, Frank Roger Tennyson

Mechanical and Aerospace Engineering Theses - Archive

The modern experimental jet train developed by Bombardier Transportation was designed to partner with the present day electrified Acela high speed trains. The Jet train would provide transportation to areas (Rural etc.), as well as transcontinental capabilities to existing towns and cities where electrified propulsion units are not feasible. The Bombardier Jet Train utilizes petroleum-based fuel, diesel engine power, and multiple turboshaft engines, for higher speeds. The Pratt and Whitney PW150 engine design parameters will be used to develop the Conceptual Hybrid Turbo Shaft Engine (CHTS). The newer Conceptual Hybrid Turbo Shaft Engine (CHTS) should increase engine performance, lower specific …

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Thermally Charging Capacitor: A New Protocol To Accurately Measure The Thermoelectric Potential, Amit Phalak Dec 2022

Thermally Charging Capacitor: A New Protocol To Accurately Measure The Thermoelectric Potential, Amit Phalak

Mechanical and Aerospace Engineering Theses - Archive

Harvesting energy from waste heat would benefit in creating sustainable systems. Specifically, thermoelectric energy conversion can be used for low-grade waste heat recovery. However, the efficiency of conventional solid-state (i.e., semiconductor) has reached to the upper limit and could not make any advancement for more than 30 years. As a paradigm shift from solid-state thermoelectric conversion, in this study, ionic thermoelectric phenomena in liquid are explored. An electrolyte, with disproportionate size of anions and cations, when subjected to a temperature gradient can experience induced ion separation. In the phenomenon known as “Soret effect”, the smaller ions with higher mobility move …

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An Integrated Design Tool For Tow-Steered Composite Laminate In Abaqus, Twinkle Kothari Dec 2022

An Integrated Design Tool For Tow-Steered Composite Laminate In Abaqus, Twinkle Kothari

Mechanical and Aerospace Engineering Theses - Archive

The material of choice for contemporary aircraft and its component design over the past few decades has shifted more and more toward fiber-reinforced composites. This is mainly due to the improved strength, lightweight, corrosion resistance, design flexibility, and durability of composites over traditional metals. Advanced tailorable composites such as tow-steered composites can be designed and fabricated with fibers following prescribed curvilinear paths, which provides improved mechanical performance compared with unidirectional fiber-reinforced composites (UDFRCs). However, the potential of tow-steered composites oftentimes fails to be exploited due to the lack of design tools. Currently, there are no commercially available design tools for …

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Physical Modeling Of Filament Growth And Resistive Switching In Metal Oxide-Based Rram, Kena Zhang Dec 2022

Physical Modeling Of Filament Growth And Resistive Switching In Metal Oxide-Based Rram, Kena Zhang

Material Science and Engineering Dissertations - Archive

Metal oxide-based resistive random-access memories (RRAM) exhibit several excellent performances, such as nanosecond switching speed, large write-erase endurance, and long retention time, and can potentially replace the traditional circuit elements for use as the fundamental units in next-generation hardware deep-learning or neuromorphic systems. The functionality of a metal oxide-based RRAM is attributed to an oxygen vacancy (V_O^(..))-rich conductive filament (CF), which initially forms, and later dissolves or regrows inside the oxide layer during the resistive switching process. However, the complicated interplays among the coexisting chemical, electrical, mechanical, and thermal effects during the formation, growth, and rupture of the CFs make …

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Effects Of Graphene In High-Density Polyethylene Microfibers, Ashish Lal Sivadas Anilal Dec 2022

Effects Of Graphene In High-Density Polyethylene Microfibers, Ashish Lal Sivadas Anilal

Material Science and Engineering Theses - Archive

High-Density Polyethylene uniquely can induce banded spherulites as it is crystallized from its melt. We studied the effects of graphene in the crystallography of banded HDPE by examining parameters such as the extent of twisting, spherulitic growth, and nucleation density. The application of graphene as a multifunctional filler in polymer matrices is a great topic of interest because graphene at low concentrations can bring many improvements in mechanical, electrical, and thermal properties. We synthesized graphene oxide by chemical oxidation of graphite and further studied its effects in the twisted crystallography of HDPE. Three batches of fibers were extruded: two batches …

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Sub-10k Cold-Electron Injection To Silicon At Room Temperature, Ojas Tushar Bhayde Dec 2022

Sub-10k Cold-Electron Injection To Silicon At Room Temperature, Ojas Tushar Bhayde

Material Science and Engineering Theses - Archive

The Fermi-Dirac thermal excitation of electrons results in unwanted off-state leakage currents in metal-oxide-semiconductor field-effect transistors (MOSFETs), leading to excessive power consumption in modern electronic devices. The electron thermal excitation results in a theoretical subthreshold slope limit of 60 mV/decade at room temperature, which forces the devices to use a high supply voltage leading to high power consumption. This study investigates a new architecture capable of suppressing electron thermal excitation by using a quantum well (QW) as an energy filter. The QW energy filter is composed of a tunneling barrier 1 (0.5 to 1 nm Al2O3 or 0.3-1 nm Si3N4 …

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Creative Collaboration In Rural Texas Communities, Kathryn May Lattimore Norris Dec 2022

Creative Collaboration In Rural Texas Communities, Kathryn May Lattimore Norris

Public Affairs Dissertations - Archive

The body of research investigating collaboration has grown exponentially in recent years with the realization of its potential in generating innovative solutions to complex problems. Even though an abundance of literature on collaboration exists, scholars have fallen short of understanding how collaboration works towards creativity. Lack of consensus on understanding how this critical construct functions has not only made furthering theory on the matter challenging for researchers, but also made recognizing, utilizing, and realizing the full benefit of collaboration difficult for practitioners. Until the ways collaboration can result in creative outcomes are better understood, practitioners will not be able to …

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Bioactivation And Detoxification Of Organophosphorus Pesticides In Freshwater Planarians Shares Similarities With Humans, Danielle Ireland, Christina Rabeler, Taixi Gong , '24, Eva-Maria S. Collins Dec 2022

Bioactivation And Detoxification Of Organophosphorus Pesticides In Freshwater Planarians Shares Similarities With Humans, Danielle Ireland, Christina Rabeler, Taixi Gong , '24, Eva-Maria S. Collins

Biology Faculty Works

Organophosphorus pesticides (OPs) are a chemically diverse class of insecticides that inhibit acetylcholinesterase (AChE). Many OPs require bioactivation to their active oxon form via cytochrome P450 to effectively inhibit AChE. OP toxicity can be mitigated by detoxification reactions performed by carboxylesterase and paraoxonase. The relative extent of bioactivation to detoxification varies among individuals and between species, leading to differential susceptibility to OP toxicity. Because of these species differences, it is imperative to characterize OP metabolism in model systems used to assess OP toxicity. We have shown that the asexual freshwater planarian Dugesia japonica is a suitable model to assess OP …

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An In Vitro 3d Model To Investigate Iol: Posterior Lens Capsule Interactions On Lens Epithelial Cell Responses, Joyita Roy Dec 2022

An In Vitro 3d Model To Investigate Iol: Posterior Lens Capsule Interactions On Lens Epithelial Cell Responses, Joyita Roy

Bioengineering Dissertations - Archive

ABSTRACT: Posterior Capsule Opacification (PCO) is the most common complication associated with Intraocular Lens (IOL) implantation. The disease is caused by the infiltration and proliferation of Lens Epithelial Cells (LEC) into the interface between the IOL and Posterior Lens Capsule (PLC). The severity of these cell responses depends on a lot of factors like the IOL design, IOL material, and interaction between the IOL and the posterior lens capsule. While some studies have also shown that adsorption of certain proteins present in the PLC, like fibronectin, may affect IOL-induced PCO in the clinical setting, the mechanism governing such interactions is …

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Spare The Rod: African American Students’ Experience Of Postsecondary Student Conduct Processes, Melissa Sanders Dec 2022

Spare The Rod: African American Students’ Experience Of Postsecondary Student Conduct Processes, Melissa Sanders

Educational Leadership & Policy Studies Dissertations - Archive

Although African Americans enroll at postsecondary institutions at similar rates as other ethnic groups, consistently, they lag in degree completion. This has led to lower wages, fewer employment opportunities, and higher health disparities among African Americans. Consequently, the literature is full of studies attempting to increase Black student degree attainment. This includes their perception of campus climates, academic preparedness, and sense of belonging. However, other opportunities to promote and encourage African American scholastic success, such as the disciplinary process, are understudied. To address this gap, I utilized a phenomenological qualitative study to examine the way African Americans perceived the impact …

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Targeted Drug-Loaded Nanoparticle System (Tdnps) To Ameliorate And Treat Idiopathic Lung Fibrosis, Harish Ramachandramoorthy Dec 2022

Targeted Drug-Loaded Nanoparticle System (Tdnps) To Ameliorate And Treat Idiopathic Lung Fibrosis, Harish Ramachandramoorthy

Bioengineering Dissertations - Archive

Idiopathic pulmonary fibrosis (IPF) is a fatal progressive disease with a dismal prognosis and 3-5 years of survival. Up to date, there are no effective treatments, and a few current therapies that do not ameliorate the pulmonary fibrosis but rather just increase the survival time by 2-3 years. The major factor limiting the treatment is the lack of targeted therapies to deliver the drugs past the mucosa, into the disease microenvironment. To combat this disease, we proposed a localized therapy via our targeted drug-loaded nanoparticles (TDNPs) to effectively deliver drugs and treat lung fibrosis. Our objective was to design TDNPs …

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Performance Evaluation Of The Modified Moisture Barrier In Stabilizing Shallow Slope Failures, Muhasina Manjur Dola Dec 2022

Performance Evaluation Of The Modified Moisture Barrier In Stabilizing Shallow Slope Failures, Muhasina Manjur Dola

Civil Engineering Dissertations - Archive

Each year significant number of highway slope failures are reported in the United States, especially in states like Texas where expansive clayey soil is prevalent. Slopes constructed over expansive clay often experience recurring shallow failures following their construction which poses maintenance problems to the Texas Department of Transportation (TxDOT). These shallow slope failures can be primarily attributed to the considerable volume change that expansive clay soil undergoes from seasonal climatic variation. Furthermore, under unsaturated conditions during dry periods, high matric suction (i.e., negative porewater pressure) exists in soil slopes. The existence of matric suction contributes to the shear strength of …

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The Me You Can’T See: Stories Of Black Male Elementary Teachers’ Experiences And Decisions To Teach, An Endarkened Storywork Study, Trevor Dustin Mccray Dec 2022

The Me You Can’T See: Stories Of Black Male Elementary Teachers’ Experiences And Decisions To Teach, An Endarkened Storywork Study, Trevor Dustin Mccray

Educational Leadership & Policy Studies Dissertations - Archive

Black male teachers in PK-12 make up less than 2% of the teacher workforce with an undetermined representation in elementary education. Although there have been efforts to increase their representation in the field, there remains a lack of Black males entering the classroom as teachers. In addition, there has been limited research examining ecological systems' influence on Black male teachers' elementary teacher experiences and their decisions to teach in early childhood education. In response, this proposed qualitative Endarkened Storywork study examined Black male elementary teachers' experiences and highlighted the perceived influence of Black males teaching in early childhood education through …

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Development Of A Decesion Tree To Rehabilitate Or Replace The St. Francis Bridge Over Ih-30, Md Farhan Abir Dec 2022

Development Of A Decesion Tree To Rehabilitate Or Replace The St. Francis Bridge Over Ih-30, Md Farhan Abir

Civil Engineering Theses - Archive

ABSTRACT: The ASCE infrastructure report card indicated that about 42% of the nation’s bridges are over 50 years old, and 7.5% of the bridges are structurally deficient. The 61-year-old St. Francis bridge over IH-30 is one of the Texas Department of Transportation (TxDOT) bridges that exhibit significant deterioration in the superstructure, including potholes and delamination in the deck. The bridge was load posted to 28,000 lb. limit and has substandard vertical and horizontal clearances to the bottom chord of the beams and supporting piers, respectively, which creates a high risk for vehicle impact. In 2017, an over-height truck struck the …

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Study Of The Impact Of Atmospheric Variability On Subsurface Methane Emissions: Application To Leak Detection And Quantification For Underground Natural Gas Pipeline Leaks, Shanru Tian Dec 2022

Study Of The Impact Of Atmospheric Variability On Subsurface Methane Emissions: Application To Leak Detection And Quantification For Underground Natural Gas Pipeline Leaks, Shanru Tian

Civil Engineering Dissertations - Archive

Natural gas (NG), taken as a bridging fuel for achieving a low-carbon future, has rapidly grown to be a significant component of the global energy system and requires extensive pipeline infrastructures, most of them buried underground. Fugitive methane (CH4) emissions from NG pipeline leaks pose environmental, safety, and economic threats to the public. An effective leak detection and quantification (LDAQ) survey method is critical to identifying a leak and assessing the size when it has occurred, thus initiating appropriate response actions to repair it and accounting for the environmental risks accurately. However, gaps exist between LDAQ survey methods, and the …

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