Digital Commons Network^™

Revisiting Unitarity Corrections For Electromagnetic Processes In Collisions Of Relativistic Nuclei, Ulrich D. Jentschura, Kai Hencken, Valery G. Serbo

Physics Faculty Research & Creative Works

Unitarity corrections to several electromagnetic processes in collisions of relativistic heavy nuclei are considered. They are due to the unitarity requirement for the S-matrix and correspond to the exchange of a light-by-light scattering block between colliding nuclei. We obtain improved results for the corrections to e⁺ e^- and μ⁺ μ^- pair production as well as new results for unitarity corrections to the production of photons via virtual Compton and virtual Delbrück scattering. These corrections can be numerically large; e.g., the μ⁺ μ^- pair production cross section is reduced by about 50% and nuclear bremsstrahlung …

New (E,2e) Studies Of Atomic And Molecular Targets, E. M. Staicu-Casagrande, A. Naja, A. Lahmam-Bennani, A. S. Kheifets, Don H. Madison, B. Joulakian

Physics Faculty Research & Creative Works

We report new coplanar (e,2e) measurements characterised by large energy transfer and close to minimum momentum transfer from the projectile to the target. Ionisation of the two-electron targets He and H₂ is investigated under these particular kinematics. The experimental data are compared with the predictions of the most elaborate theoretical models. The obtained good agreement motivated us to extend our research to the case of more complex targets such as Ar. Comparison with the most elaborate models in the case of multi-electron targets is excellent. Destructive and constructive interference effects in the case of H₂ are observed and …

Can A Representative Agent Model Represent A Heterogeneous Agent Economy?, Sungbae An, Yongsung Chang, Sun-Bin Kim

Research Collection School Of Economics

Accounting for observed fluctuations in aggregate employment, consumption, and real wage using the optimality conditions of a representative household requires preferences that are incompatible with economic priors. In order to reconcile theory with data, we construct a model with heterogeneous agents whose decisions are difficult to aggregate because of incomplete capital markets and the indivisible nature of labor supply. If we were to explain the model-generated aggregate time series using decisions of a stand-in household, such a household must have a nonconcave or unstable utility as is often found with the aggregate US data.

Lifestyle Of Shellmound Builders In Brazil (Galley Proofs), Sabine Eggers, C. C. Petronilho, K. Brandt, J. Filippini, Karl J. Reinhard

School of Natural Resources: Faculty Publications

The contact of inland and coastal prehistoric groups in Brazil is believed to have been restricted to regions with no geographical barrier, as is the case in the Ribeira de Iguape valley. The inland osteological collection from the riverine shellmound Moraes (5800–4500 BP) represents a unique opportunity to test this assumption for this region. Despite cultural similarities between riverine and coastal shellmounds, important ecological and site distribution differences are expected to impact on lifestyle. The purpose of this study is thus to document and interpret health and lifestyle indicators in Moraes in comparison to coastal shellmound groups. Specifically we test …

Tennessee Farm Bureau News - November 2008, Tennessee Farm Bureau Federation

Tennessee Farm Bureau News

No abstract provided.

Opinion Tracking System, Swetha Yandrathi

Masters Theses & Doctoral Dissertations

In the current growing online commodity market, opinion survey plays a major role for the enhancement of the business. Many organizations prefer theses surveys in order to improve their service and market from the user feedback. Organizations would like to have a database system which allows them to get user opinions on different platforms like product websites, blogs, discussion groups, etc. They want the system to store the date, time and the text of opinion every time, the user enters an opinion on any platform. Some platforms allow the user to give a numeric score for the product. Score range …

Evaluating Shape Correspondence For Statistical Shape Analysis: A Benchmark Study, Brent C. Munsell, Pahal Dalal, Song Wang

Faculty Publications

This paper introduces a new benchmark study to evaluate the performance of landmark-based shape correspondence used for statistical shape analysis. Different from previous shape-correspondence evaluation methods, the proposed benchmark first generates a large set of synthetic shape instances by randomly sampling a given statistical shape model that defines a ground-truth shape space. We then run a test shape-correspondence algorithm on these synthetic shape instances to identify a set of corresponded landmarks. According to the identified corresponded landmarks, we construct a new statistical shape model, which defines a new shape space. We finally compare this new shape space against the ground-truth …

Analyzing The Catalytic Mechanism Of The Fe-Type Nitrile Hydratase From Comamonas Testosteroni Ni1, Saroja Rao, Richard C. Holz

Chemistry Faculty Research and Publications

In order to gain insight into the catalytic mechanism of Fe-type nitrile hydratases (NHase), the pH and temperature dependence of the kinetic parameters k_cat, K_m, and k_cat/K_m along with the solvent isotope effect were examined for the Fe-type NHase from Comamonas testosteroni Ni1 (CtNHase). CtNHase was found to exhibit a bell-shaped curve for plots of relative activity vs pH over pH values 4−10 for the hydration of acrylonitrile and was found to display maximal activity at pH ∼7.2. Fits of these data provided a pK_ES1 value of …

Diagnosis And Management Of Piriformis Syndrome: An Osteopathic Approach, Lori A. Boyajian-O'Neill, Rance Mcclain, Michele K. Coleman, Pamela P. Thomas

Faculty and Staff Publications

Piriformis syndrome is a neuromuscular condition characterized by hip and buttock pain. This syndrome is often overlooked in clinical settings because its presentation may be similar to that of lumbar radiculopathy, primary sacral dysfunction, or innominate dysfunction. The ability to recognize piriformis syndrome requires an understanding of the structure and function of the piriformis muscle and its relationship to the sciatic nerve. The authors review the anatomic and clinical features of this condition, summarizing the osteopathic medical approach to diagnosis and management. A holistic approach to diagnosis requires a thorough neurologic history and physical assessment of the patient based on …

The Early History Of The Colorado Court Of Appeals, Robert Linz, Claire E. Munger

Faculty Articles

No abstract provided.

Correlation Between Eut Failure Levels And Esd Generator Parameters, Jayong Koo, Qing Cai, Kai Wang, J. Maas, T. Takahashi, Andrew Martwick, David Pommerenke

Electrical and Computer Engineering Faculty Research & Creative Works

Some system-level electrostatic discharge (ESD) tests repeat badly if different ESD generators are used. For improving repeatability, ESD generator specifications have been changed, and modified generators have been compared in a worldwide round robin test. The test showed up to 1 : 3 variations of failure levels. Multiple parameters that characterize ESD generators have been measured. This paper correlates the parameters to test result variations trying to distinguish between important and nonrelevant parameters. The transient fields show large variations among different ESD generators. A correlation has been observed in many equipment under tests (EUTs) between failure levels and the spectral …

A Plasma Model Combined With An Improved Two-Temperature Equation For Ultrafast Laser Ablation Of Dielectrics, Lan Jiang, Hai-Lung Tsai

Mechanical and Aerospace Engineering Faculty Research & Creative Works

It remains a big challenge to theoretically predict the material removal mechanism in femtosecond laser ablation. To bypass this unresolved problem, many calculations of femtosecond laser ablation of nonmetals have been based on the free electron density distribution without the actual consideration of the phase change mechanism. However, this widely used key assumption needs further theoretical and experimental confirmation. by combining the plasma model and improved two-temperature model developed by the authors, this study focuses on investigating ablation threshold fluence, depth, and shape during femtosecond laser ablation of dielectrics through nonthermal processes (the Coulomb explosion and electrostatic ablation). The predicted …

Indirect Camera Calibration In A Medical Environment, Bennet Tillapaugh

Theses

This thesis addresses the need to have calibrated cameras in surgery rooms. Data can then be collected during surgeries to assist the surgeons and it can later be used for postoperation analysis. Typical techniques for camera calibration are not adequate for a medical environment due to the cameras constantly moving and with no rigid area always in the cameras’ view. The proposed approach is to calibrate cameras attached to surgical lights by utilizing extra cameras placed on the ceiling. The ceiling cameras find the position of the light cameras and calibrate their extrinsic parameters. This indirect calibration method provides an …

Uniform Color Spaces Based On Ciecam02 And Ipt Color Difference Equations, Yang Xue

Theses

Color difference equations based on the CIECAM02 color appearance model and IPT color space have been developed to fit experimental data. There is no color space in which these color difference equations are Euclidean, e.g. describe distances along a straight line. In this thesis, Euclidean color spaces have been derived for the CIECAM02 and IPT color difference equations, respectively, so that the color difference can be calculated as a simple color distance. Firstly, the Euclidean line element was established, from which terms were derived for the new coordinates of lightness, chroma, and hue angle. Then the spaces were analyzed using …

Gamut Extension Algorithm Development And Evaluation For The Mapping Of Standard Image Content To Wide-Gamut Displays, Stacey E. Casella

Theses

Wide-gamut display technology has provided an excellent opportunity to produce visually pleasing images, more so than in the past. However, through several studies, including Laird and Heynderick, 2008, it was shown that linearly mapping the standard sRGB content to the gamut boundary of a given wide-gamut display may not result in optimal results. Therefore, several algorithms were developed and evaluated for observer preference, including both linear and sigmoidal expansion algorithms, in an effort to define a single, versatile gamut expansion algorithm (GEA) that can be applied to current display technology and produce the most preferable images for observers. The outcome …

An Ounce Of Prevention: Solving Some Unforeseen Problems With The Proposed Amendments To Rule 56 And The Federal Summary Judgment Process, Adam N. Steinman

Faculty Scholarship

The Civil Rules Advisory Committee has recently proposed the most significant revisions to Rule 56 since the Federal Rules of Civil Procedure were adopted seventy years ago. Although the stated goal of the proposed amendments is laudable - "to improve the procedures for making and opposing summary-judgment motions, and to facilitate the judge's work in resolving them" - this Essay in the Northwestern University Law Review Colloquy identifies some unanticipated problems with the proposed text. Contrary to the Advisory Committee's intent, the proposed text may inadvertently make substantial changes to the summary-judgment standard and the burdens on litigants at the …

Multi-Object Decision Making For Supplier Selection In Outsourcing, Pushpen K. Mohile

Theses

A supply chain is the system of organizations, people, technology, activities, information, and resources involved in moving a product or service from supplier to customer. The main and basic challenges in the supply chain are to plan a strategy to manage the resources and meet the demands, to select the suppliers that will deliver the goods and services that are required to build the product, to manufacture the product, to deliver the product to the customers and to make an arrangement for return of the products through customers if there is any fault in the product for servicing. This thesis …

Memoir Of A Marionette, Rui Jin

Theses

My film intends to draw public awareness to the quick disappearing of traditional performing arts due to the gap caused by fast advancement of technology. Film, TV, Internet and video games have diverted public interests from old performing arts. It discusses modernity vs. antiquity. How can we progress without sacrificing all we have inherited from our ancestors. In the film, this idea is demonstrated by two trembling hands trying to reach each other – one from the marionette and the other from the old performer. They all have the same dream: laughter and cheers from children. But before the hands …

Estimating Evolutionary Dynamics Of Cleavage Site Peptides Among H5ha Avian Influenza Employing Mathematical Information Theory Approaches, Sherry Dadgar

Theses

Estimating evolutionary conservation of cleavage site peptides among HA protein of all strains facilitates vaccine development against pandemic influenza. Conserved epitopes may be useful for diagnosis of animals infected with the influenza virus, and preventing their spread in other regions [ 1]. In the preliminary stage of this study, in silico analysis of hemagglutinin was applied to predict potential cleavage sites of each strain employing

SigCleave [2] and SignalP 3.0 server [3]. The second stage of the study focused on analyzing the structure of connecting peptides of hemagglutinin cleavage sites based on the availability of the existing experimental data. Our …

Three-Dimensional Modeling Of The Plasma Arc In Arc Welding, Gu Xu, J. Hu, Hai-Lung Tsai

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Most previous three-dimensional modeling on gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW) focuses on the weld pool dynamics and assumes the two-dimensional axisymmetric Gaussian distributions for plasma arc pressure and heat flux. In this article, a three-dimensional plasma arc model is developed, and the distributions of velocity, pressure, temperature, current density, and magnetic field of the plasma arc are calculated by solving the conservation equations of mass, momentum, and energy, as well as part of the Maxwell's equations. This three-dimensional model can be used to study the nonaxisymmetric plasma arc caused by external perturbations such as …

Breast Reconstruction In Conserving Breast Cancer Surgery, Jamal K. Almasad

Saudi Medical Journal

Breast conserving treatment (BCT) combined with radiotherapy have proved the test of time as a sound oncological operation regarding survival and local recurrence. Successful BCT is a balance between adequate surgery and maintaining the breast9s appearance. Unsatisfactory outcome reaches 20-30% in standard techniques of BCT. Concepts described to widen the spectrum of BCT, have made an improvement of cosmetic outcome, and facilitated a liberal safety margin. Volume displacement techniques, such as glandular flap, mammoplasty, donut mastopexy, and batwing mastopexy proved useful in large breasts and volume replacement, such as latissimus dorsi flap and local flaps are of great advantage to …

Nitroblue Tetrazolium Test In Patients With Beta-Thalassemia Major, Javad Ghaffari, Kourosh Vahidshahi, Mehrnoush Kosaryan, Nikoo Parvinnejad, Mohammadreza Mahdavi, Hossein Karami

Saudi Medical Journal

OBJECTIVE: To assess the neutrophil function in thalassemia major (TM) patients and compare it with the control group, and to recognize its relevant factors. METHODS: This was a retrospective cohort study, which was carried out from October 2007 to February 2008 in the Thalassemia Research Center in Boo Ali Sina Hospital in Sari, Mazandaran, north of Iran. The study population consisted of TM patients in Boo Ali Sina Teaching Hospital. The method of sampling in the case group was systematic, and it was target based in the control group. The sample size determined was based on previous studies. Thalassemia major …

Anti Caga Antibody Among Patients With Non-Cardia Gastric Cancer In Comparison With Non-Ulcer Dyspepsia In An Area With High Incidence Of Gastric Cancer, Fariborz Mansour-Ghanaei, Roxana Abbasi, Farahnaz Joukar, Sepiedeh Besharati, Neda Askari-Jirhandeh

Saudi Medical Journal

OBJECTIVE: To evaluate the correlation between anti CagA antibody (Ab) and presence of gastric cancer. METHODS: In a descriptive cross-sectional study during October 2003 to October 2005, in the Gastrointestinal Subspeciality Center in Razi Hospital, Rasht, Iran, we assessed anti-Helicobacter Ab immunoglobulin G (IgG) and anti CagA Ab IgG by the enzyme-linked immunosorbent assay (ELISA) method in 52 patients with gastric adenocarcinoma and 57 patients with nonulceric dyspepsia (NUD). RESULTS: Among 52 patients with gastric cancer, anti-Helicobacter pylori Ab was negative in 13 (25%) and positive in 39 persons (75%). Among 57 patients with NUD, anti-Helicobacter pylori Ab was negative …

Knowledge Regarding The National Premarital Screening Program Among University Students In Western Saudi Arabia, Jumana Y. Al-Aama, Baraa K. Al-Nabulsi, Mohammad A. Alyousef, Nawal A. Asiri, Sawsan M. Al-Blewi

Saudi Medical Journal

OBJECTIVE: To explore the knowledge of university students in Jeddah, western Saudi Arabia, regarding the national premarital screening (PMS) program. METHODS: A self-administered questionnaire was distributed to a sample of 800 students at King Abdulaziz University (KAU), Jeddah, Kingdom of Saudi Arabia during the first semester of the academic year 2005-2006. This included questions regarding socio-demographic data, personal history of hereditary disease, or premarital screening, knowledge on hereditary diseases, and on the national PMS program. Data were analyzed using the Statistical Package for Social Sciences version 13. A p-value less than 0.05 was considered significant. RESULTS: Eighty-five percent of the …

A Comparison Study Of Remediation Services Offered To Latino Students In The Primary Grades, Melissa Harold Lannom

Doctoral Dissertations and Projects

This comparative study was designed to assess the efficacy of Reading A-Z, an online reading program with differentiated reading levels from kindergarten to sixth grade, on first through third grade Latino students. Ten Virginia elementary schools in a single school district participated in this study of tutoring services offered to low-performing, Spanish-speaking students. Increases in individual instructional reading levels (IRL) and word recognition in isolation (WRI), as measured by Phonological Awareness Literacy Screening (PALS) assessment, were documented using pretest scores collected in fall 2007 with posttest scores collected in spring 2008. An independent t-test was used to determine if differences …

Scholarship @ Rit Fall 2008, Rit Libraries Publishing And Scholarship Support Center

RIT Digital Archives

No abstract provided.

Nothing Improper? Examining Constitutional Limits, Congressional Action, Partisan Motivation, And Pretextual Justification In The U. S. Attorney Removals, David C. Weiss

Michigan Law Review

The forced mid-term resignations of nine U.S. Attorneys was an unprecedented event in American history. Nearly one year after the administration executed the removals, the House Judiciary Committee was still reviewing and publicizing emails, memoranda, and other documents in an effort to understand how the firings were effectuated. This Note examines many of those documents and concludes that the removals were likely carried out for partisan reasons. It then draws on the Constitution, Supreme Court precedent, and separation of powers principles to argue that Congress is constitutionally empowered to enact removal limitations for inferior officers such as U.S. Attorneys so …

Practice Makes Perfect? An Empirical Study Of Claim Construction Reversal Rates In Patent Cases, David L. Schwartz

Michigan Law Review

This Article examines whether U.S. district court judges improve their skills at patent claim construction with experience, including the experience of having their own cases reviewed by the Court of Appeals for the Federal Circuit. In theory, higher courts teach doctrine to lower courts via judicial decisions, and lower courts learn from these decisions. This Article tests the teaching-and-learning premise on the issue of claim construction in the realities of patent litigation. While others have shown that the Federal Circuit reverses a large percentage of lower court claim constructions, no one has analyzed whether judges with more claim construction appeal …

The Newest Spectator Sport: Why Extending Victims’ Rights To The Spectators’ Gallery Erodes The Presumption Of Innocence, Sierra Elizabeth

Duke Law Journal

No abstract provided.

Victims’ Rights In An Adversary System, Erin C. Blondel

Duke Law Journal

The victims' rights movement argues that because the outcome of criminal prosecutions affects crime victims, the justice system should consider their interests during proceedings. In 2004, Congress passed the Crime Victims' Rights Act (CVRA), giving victims some rights to participate in the federal criminal justice system. This Note probes both the theoretical assumptions and practical implications of the CVRA. It demonstrates that the victims' rights movement revisits a long-acknowledged tension between adversary adjudication and third-party interests. It shows, however, that American law has resolved this tension by conferring party or quasi-party status on third parties. Despite some pro-victims rhetoric, Congress …