Digital Commons Network^™

Complexity Of Prostate Cancer Diagnosis In African American Men In The United States, Adam B. Sumlin

Walden Dissertations and Doctoral Studies

Researchers have identified higher incidence rates and mortality rates among African American men (AAM) diagnosed with prostate cancer than they have among urban African American men. This quantitative descriptive study was conducted to measure the association between advanced stage and grade of prostate cancer, demographic location, and prostate specific antigen (PSA) levels over a 5-year period in AAM and European American men (EAM) in rural versus urban communities. This study addressed 4 research questions concerning cancer grade, cancer stage, age, geographic location, PSA level, and the impact that each of these variables had on prostate cancer diagnosis in AAM in …

Chinese International Students' And Faculty Members' Views Of Plagiarism In Higher Education, Alan Edward Grigg

Walden Dissertations and Doctoral Studies

As the enrollment of Chinese international students (CIS) increased at a private institution in the Midwest, so did suspected cases of plagiarism. This study addressed the problem of how faculty members grappled with CIS' interpretation and application of Western-based views of plagiarism. The purpose of the study was to identify similarities and differences in the views of these 2 groups. Social cognitive theory, intercultural adaptation theory, and neutralization theory framed this qualitative case study. The research questions focused on how these particular CIS interpreted and applied the Western concept of plagiarism to assignments and exams, the impact of classroom practices …

Relationship Between Working Capital Management, Policies, And Profitability Of Small Manufacturing Firms, Zelealem Tadesse Temtime

Walden Dissertations and Doctoral Studies

Working capital optimization, as an act of balancing liquidity and profitability, presents significant challenges when small businesses lack managerial expertise and access to affordable capital and credit facilities. To remain successful through efficient utilization of working capital, small business leaders need to understand the association between working capital management (WCM), working capital policy (WCP), and business profitability (PFT). Anchored in the cash conversion cycle theory, the purpose of this correlational study was to examine the relationship between WCM, WCP, and PFT. The study employed a retrospective secondary analysis of financial data from 2004 to 2013 from a random sample of …

The Role Of Problem Behaviors In The Pathway From Abuse To Prostitution, Shante Williams

Walden Dissertations and Doctoral Studies

Research has suggested that behaviors beginning in childhood or adolescence may play a mediating role in the relationship between childhood maltreatment and involvement in prostitution. It is currently unknown how poor self-concept and low self-efficacy play a mediating relationship in this association. The primary purpose of this correlational study was to evaluate early youth problem behaviors such as poor self-concept and reduced self-efficacy as possible mediators in the association between childhood abuse/neglect and participation in prostitution during young adulthood. The central research questions explored the association between childhood maltreatment and involvement in prostitution, as well as how self-concept and self-efficacy …

Virtual Liquid Networks And Other Guiding Principles For Optimizing Future Student-Edited Law Review Platforms, Donald J. Kochan

Touro Law Review

No abstract provided.

Beyond The Cloud: Why The Narrow Decision In American Broadcasting Cos. V. Aereo, Inc. May Have Broader Implications For Cloud-Computing, Robyn L. Rothman

Touro Law Review

No abstract provided.

2016-2017 Graduate Course Descriptions, Rochester Institute Of Technology

RIT Digital Archives

No abstract provided.

2016-2017 Undergraduate Course Descriptions, Rochester Institute Of Technology

RIT Digital Archives

No abstract provided.

Causes Of Open Fractures: Orthopaedic Injuries Related To Home-Made Agricultural Vehicles In The Eastern Black Sea Region Of Turkey, Ferhat Say, Hüseyi̇n Si̇na Coşkun, Murat Erdoğan, Ahmet Murat Bülbül, Deni̇z Gürler

Turkish Journal of Medical Sciences

Background/aim: Small vehicles known locally as pat-pats, which are used in agricultural work, are forbidden in traffic. The inherent instability of the vehicle may result in accidents, both on farmland and in traffic. The aim of this study was to evaluate orthopaedic injuries related to pat-pats. Materials and methods: Patients hospitalised for pat-pat accidents in two central hospitals in Samsun between December 2006 and October 2013 were scanned using ICD codes. A total of 46 patients with orthopaedic injuries (43 male, 3 female) with a mean age of 36 ± 13.3 years were evaluated. Results: The most injured age group …

The User Principle: Rashomon Effect Or Much Ado About Nothing?, Kelvin F. K. Low

Research Collection Yong Pung How School Of Law

No abstract provided.

Gallium-Containing Mesoporous Bioactive Glass With Potent Hemostatic Activity And Antibacterial Efficacy, Sara Pourshahrestani, Ehsan Zeimaran, Nahrizul Adib Kadri, Nicola Gargiulo, Shani Samuel, Sangeetha Vasudevaraj Naveen, Tunku Kamarul, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

Haemorrhage remains the leading cause of potentially survivable death in both military and civilian populations. Although a large variety of hemostatic agents have been developed, many of them have an inadequate capacity to induce hemostasis and are not effective in killing bacteria. In recent years, mesoporous bioactive glasses (MBGs) were found to be effective in inducing hemostasis. However, the materials may not be considered as ideal hemostats since they do not offer antimicrobial activity. The gallium ion (Ga⁺³) not only exhibits antibacterial properties but also accelerates the blood coagulation cascade. The aim of this study was to develop …

Review Of Barry Allen, Vanishing Into Things: Knowledge In Chinese Tradition, Alan Kam Leung Chan

Research Collection College of Integrative Studies

Vanishing into Things: Knowledge in Chinese Tradition. By Barry Allen. Cambridge, MA and London, England: Harvard University Press, 2015. Pp. viii + 289.This book is about conceptions of knowledge in Chinese philosophy, but it also does more than that. It raises new possibilities for comparative philosophy and points to ways in which philosophy as an academic discipline could be reinvigorated to help address the global challenges of the twenty-first century.

3for2: Realizing Spatial, Material, And Energy Savings Through Integrated Design, Arno Schlueter, Adam Rysanek, Clayton Miller, Jovan Pantelic, Forrest Meggers, Matthias Mast, Marcel Bruelisauer, Chen Kian Wee

Research Collection College of Integrative Studies

As the world adapts to dual trends of climate change and urbanization, tall office buildings in hot and humid climate zones near the equator are among the prime candidates for a significant change in design approach. Though many individualized improvements to operating systems, envelopes and material selections have been introduced in recent years, it is generally agreed a holistic approach is needed to truly capitalize on the smaller-scale innovations. With a focus on reducing the necessary size of the services plenum, in this paper, an alternative paradigm for the optimization of space, material, and energy use in buildings is presented: …

Bioactivity/Cytotoxicity Of Micro-/Nano-Materials And Novel Development Of Fiber-Optic Probes For Single Cell Monitoring, Qingbo Yang

Doctoral Dissertations

"Manufactured nano-/micro-materials (MNMs) have been widely used and their interactions with niche biological environment are highly concerned for both of their biohazardous and bioactive effects, whereas no available comprehensive evaluations or regulations have been provided yet. This dissertation thus focuses on three major aspects: 1) fundamental toxicity understandings of a typical MNMs (zinc oxide nanoparticles), 2) bioactivity evaluations of representative bioactive MNMs, and 3) development of novel micro-probes for high spatial resolution monitoring. Firstly, the NP's concentration, irradiation, hydrodynamic size, and the localized pH, ionic strength, NP zeta-potential as well as dissolved oxygen levels were found correlated with the production …

No U-Turn Needed On The Elected Presidency, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

SMU Associate Professor of Law Eugene Tan cited the commentary "Let's talk about policy failures and the elected presidency" by Professor Kishore Mahbubani, where the latter argued that Singapore’s policy of an elected presidency should be revisited, and perhaps "the time has come to do a U-turn", stop having direct elections and go back to the previous practice of having Parliament elect the president. While Associate Prof Tan noted that Prof Mahbubani's concern is legitimate, he emphasised that the way forward is not a U-turn, but rather, a collective effort to determine how we can reduce the likelihood of electing …

Lazer: Distributed Memory-Efficient Assembly Of Large-Scale Genomes, Sayan Goswami, Arghya Kusum Das, Richard Platania, Kisung Lee, Seung Jong Park

Computer Science Faculty Research & Creative Works

Genome sequencing technology has witnessed tremendous progress in terms of throughput as well as cost per base pair, resulting in an explosion in the size of data. Consequently, typical sequence assembly tools demand a lot of processing power and memory and are unable to assemble big datasets unless run on hundreds of nodes. In this paper, we present a distributed assembler that achieves both scalability and memory efficiency by using partitioned de Bruijn graphs. By enhancing the memory-to-disk swapping and reducing the network communication in the cluster, we can assemble large sequences such as human genomes (452 GB) on just …

Transient Cfd Simulations Of Pumping And Mixing Using Electromagnetic, Fangping Yuan

Doctoral Dissertations

"In this dissertation, two dimensional and three dimensional, transient CFD simulations are conducted to investigate the active pumping and mixing in microfluidics driven by Electromagnetic/Lorentz force. Shallow disk/ring cylindrical microfluidic cell and shallow cuboid microfluidic cell with electrodes deposited on the bottom surface are modelled for mixing and pumping purposes respectively. By applying voltage across specific pair of electrodes, an ionic current is established in the weak conductive liquid present in the cell. The current interacts with an externally applied magnetic field generating a Lorentz force that causes fluid motion in the cell. Velocity vectors, electric potential distributions and ionic …

Src Family Kinases Mediate Individual Cell Responses To Receptor Tyrosine Kinase Signaling In Neuroblastoma Cells, Juan Enrique Palacios Moreno

Graduate Student Theses, Dissertations, & Professional Papers

Receptor Tyrosine Kinases (RTKs) are involved in proliferation, differentiation, cellular metabolism, and homeostasis. More than half of the RTKs in the human genome are expressed in neuroblastoma cell lines. RKTs activate downstream signaling pathways including the canonical pathways of ERK, AKT, PLCγ, and SRC Family Kinases (SFKs). Phosphoproteomic data showed high expression and phosphorylation levels of SFK scaffold PAG1, and SFKs FYN and LYN in neuroblastoma cell lines and endosomes. We hypothesized that FYN and LYN distinguish between proliferation- and differentiation-inducing signals from different RTKs in neuroblastoma cells.

To test this hypothesis, we measured changes in FYN and LYN’s intracellular …

Applications Of Simulation And Optimization Techniques In Optimizing Room And Pillar Mining Systems, Angelina Konadu Anani

Doctoral Dissertations

"The goal of this research was to apply simulation and optimization techniques in solving mine design and production sequencing problems in room and pillar mines (R&P). The specific objectives were to: (1) apply Discrete Event Simulation (DES) to determine the optimal width of coal R&P panels under specific mining conditions; (2) investigate if the shuttle car fleet size used to mine a particular panel width is optimal in different segments of the panel; (3) test the hypothesis that binary integer linear programming (BILP) can be used to account for mining risk in R&P long range mine production sequencing; and (4) …

Evaluating Of Scale-Up Methodologies Of Gas-Solid Spouted Beds For Coating Triso Nuclear Fuel Particles Using Advanced Measurement Techniques, Neven Y. Ali

Doctoral Dissertations

"The work focuses on implementing for the first time advanced non-invasive measurement techniques to evaluate the scale-up methodology of gas-solid spouted beds for hydrodynamics similarity that has been reported in the literature based on matching dimensionless groups and the new mechanistic scale up methodology that has been developed in our laboratory based on matching the radial profile of gas holdup since the gas dynamics dictate the hydrodynamics of the gas-solid spouted beds. These techniques are gamma-ray computed tomography (CT) to measure the cross-sectional distribution of the phases' holdups and their radial profiles along the bed height and radioactive particle tracking …

Blended Learning In Chemistry Laboratory Courses: Enhancing Learning Outcomes And Aligning Student Needs With Available Resources, Shayna Brianne Burchett

Doctoral Dissertations

"Freshman science courses are intended to prepare students for the rigor and expectations of subsequent college science. While secondary education aims to prepare students for the college curriculum, many incoming freshman lack the sense of responsibility for their own learning that is essential for success in a college-level course. The freshman general-chemistry laboratory course at Missouri University of Science and Technology (Missouri S&T) was identified as a bottleneck course with a demand beyond accommodation capacity. To address the bottleneck and develop a sense of learner responsibility, a decision was made to investigate laboratory course delivery strategies. As a result of …

Subterranean Photobioreactors For Commercial-Industrial Scale Algal Culture, Daniel James Vidt

Doctoral Dissertations

"There are many potential benefits to the mining industry accruing from the application of algal biotechnology. The main benefits are in the production of biodiesel and in the remediation of mining brownfields. The research in this study was centered in the original idea that these brownfields represent a tremendous opportunity for use as a hybrid model for redevelopment into sustainable "mines" of biomass. The ability of these underground spaces serving as bioreactors to control all aspects of the growing environment, from lighting, to temperature, to biosecurity, are key advantages that have been identified in the literature. The many benefits inherent …

Study Of Heat Transfer Phenomenon During Natural Convection, Muhammad Yousaf

Doctoral Dissertations

"The purpose of the present study was to numerically investigate the effects of the roughness elements on the heat transfer during natural convection. A computational algorithm was developed based on the Lattice Boltzmann method to conduct numerical study in two-dimensional rectangular cavities and Rayleigh-Bénard cell. A single relaxation time Bhatnagar-Gross-Krook model of Lattice Boltzmann method was used to solve the coupled momentum and energy equations in two-dimensional lattices. Computational model was validated against previous benchmark solutions, and a good agreement was found to exist. A Newtonian fluid of Prandtl (Pr) number 1.0 was considered for this numerical study. The range …

Detecting, Segmenting And Tracking Bio-Medical Objects, Mingzhong Li

Doctoral Dissertations

"Studying the behavior patterns of biomedical objects helps scientists understand the underlying mechanisms. With computer vision techniques, automated monitoring can be implemented for efficient and effective analysis in biomedical studies. Promising applications have been carried out in various research topics, including insect group monitoring, malignant cell detection and segmentation, human organ segmentation and nano-particle tracking.

In general, applications of computer vision techniques in monitoring biomedical objects include the following stages: detection, segmentation and tracking. Challenges in each stage will potentially lead to unsatisfactory results of automated monitoring. These challenges include different foreground-background contrast, fast motion blur, clutter, object overlap and …

A Control Theoretic Approach For Security Of Cyber-Physical Systems, Haifeng Niu

Doctoral Dissertations

"In this dissertation, several novel defense methodologies for cyber-physical systems have been proposed. First, a special type of cyber-physical system, the RFID system, is considered for which a lightweight mutual authentication and ownership management protocol is proposed in order to protect the data confidentiality and integrity. Then considering the fact that the protection of the data confidentiality and integrity is insufficient to guarantee the security in cyber-physical systems, we turn to the development of a general framework for developing security schemes for cyber-physical systems wherein the cyber system states affect the physical system and vice versa. After that, we apply …

Efficient And Quantitative Emc Predictions (Emission And Immunity) For Ecu Modules, Guangyao Shen

Doctoral Dissertations

"This dissertation consists of three papers. In the first paper, a methodology of building an IC model capable of predicting failures for given disturbances at the clock input based on limited or no knowledge about IC internals was developed.

In the second paper, the maximized radiated emissions of the heat-sink/IC structure are predicted up to 40 GHz by creating an equivalent source using the measured electrical field in the gap between the heat-sink and ICs. The electric field is detected by an E-field probe made of an open coaxial cable coated with absorbing material. A numerical model is built in …

Development Of Implants Composed Of Bioactive Materials For Bone Repair, Wei Xiao

Doctoral Dissertations

"The purpose of this Ph.D. research was to address the clinical need for synthetic bioactive materials to heal defects in non-loaded and loaded bone. Hollow hydroxyapatite (HA) microspheres created in a previous study were evaluated as a carrier for controlled release of bone morphogenetic protein-2 (BMP2) in bone regeneration. New bone formation in rat calvarial defects implanted with BMP2-loaded microspheres (43%) was significantly higher than microspheres without BMP2 (17%) at 6 weeks postimplantation. Then hollow HA microspheres with a carbonate-substituted composition were prepared to improve their resorption rate. Hollow HA microspheres with ~12 wt. % of carbonate showed significantly higher …

The Effect Of Scoliotic Deformity On Spine Kinematics In Adolescents., Sarah Galvis, Douglas Burton, Brandon Barnds, John Anderson, Richard M. Schwend, Nigel Price, Sara Wilson, Elizabeth Friis

Manuscripts, Articles, Book Chapters and Other Papers

Background: While adolescent idiopathic scoliosis (AIS) produces well characterized deformation in spinal form, the effect on spinal function, namely mobility, is not well known. Better understanding of scoliotic spinal mobility could yield better treatment targets and diagnoses. The purpose of this study was to characterize the spinal mobility differences due to AIS. It was hypothesized that the AIS group would exhibit reduced mobility compared to the typical adolescent (TA) group.

Methods: Eleven adolescents with right thoracic AIS, apices T6-T10, and eleven age- and gender-matched TAs moved to their maximum bent position in sagittal and coronal plane bending tasks. A Trakstar …

Book Review: Student Writing In The Quantitative Disciplines: A Guide For College Faculty, Mark Causapin

All Works

No abstract provided.

Change-Point Detection In The Marginal Distribution Of A Linear Process, Farid El Ktaibi, B. Gail Ivanoff

All Works

© 2016, Institute of Mathematical Statistics. All rights reserved. The subject of this paper is the detection of a change in the marginal distribution of a stationary linear process. By considering the marginal distribution, the change-point model can simultaneously incorporate any change in the coefficients and/or the innovations of the linear process. Furthermore, the change point can be random and data dependent. The key is an analysis of the asymptotic behaviour of the sequential empirical process, both with and without a change point. Our results hold under very mild conditions on the existence of any moment of the innovations and …