Digital Commons Network^™

Tr-2010006: Graph-Based Clustering And Its Application In Coreference Resolution, Zheng Chen

Computer Science Technical Reports

No abstract provided.

The Future Of Natural Selection Knowledge Measurement: A Reply To Anderson Et Al. (2010), Ross Nehm, Irvin Sam Schonfeld

Publications and Research

The development of rich, reliable, and robust measures of the composition, structure, and stability of student thinking about core scientific ideas (such as natural selection) remains a complex challenge facing science educators. In their recent article (Nehm & Schonfeld 2008), the authors explored the strengths, weaknesses, and insights provided by a detailed exploration of three commonly used measures of student thinking about natural selection in a large sample of underrepresented minority students. One of their core findings was that all of the tools they studied--including the CINS--have strengths and weaknesses that must be carefully taken into consideration by those …

Performance Management Process Report: John Jay College Goals & Targets 2010-2011, John Jay College Of Criminal Justice

Reports and Publications from John Jay College

No abstract provided.

Graduate Bulletin 2010-2011, John Jay College Of Criminal Justice

College Bulletins

No abstract provided.

Patterns Of Subnet Usage Reveal Distinct Scales Of Regulation In The Transcriptional Regulatory Network Of Escherichia Coli, Carsten Marr, Fabian J. Theis, Larry S. Liebovitch, Marc-Thorsten Hutt

Publications and Research

The set of regulatory interactions between genes, mediated by transcription factors, forms a species’ transcriptional regulatory network (TRN). By comparing this network with measured gene expression data, one can identify functional properties of the TRN and gain general insight into transcriptional control. We define the subnet of a node as the subgraph consisting of all nodes topologically downstream of the node, including itself. Using a large set of microarray expression data of the bacterium Escherichia coli, we find that the gene expression in different subnets exhibits a structured pattern in response to environmental changes and genotypic mutation. Subnets with fewer …

The Maximum Rectilinear Crossing Number Of The Petersen Graph, Elie Feder, Heiko Harborth, Steven Herzberg, Sheldon Klein

Publications and Research

We prove that the maximum rectilinear crossing number of the Petersen graph is 49. First, we illustrate a picture of the Petersen graph with 49 crossings to prove the lower bound. We then prove that this bound is sharp by carefully analyzing the ten Cs's which occur in the Petersen graph and their properties.

Standardization Of Keyword Search Mode, Di Su

Publications and Research

In spite of its popularity, keyword search mode has not been standardized. Though information professionals are quick to adapt to various presentations of keyword search mode, novice end-users may find keyword search confusing. This article compares keyword search mode in some major reference databases and calls for standardization.

The Genomics Education Partnership: Successful Integration Of Research Into Laboratory Classes At A Diverse Group Of Undergraduate Institutions, Christopher D. Shaffer, Consuelo Alvarez, Cheryl Bailey, Daron Barnard, Satish Bhalla, Chitra Chandrasekaran, Vidya Chandrasekaran, Hui-Min Chung, Douglas R. Dorer, Chunguang Du, Todd T. Eckdahl, Jeff L. Poet, Donald Frohlich, Anya L. Goodman, Yuying Gosser, Charles Hauser, Laura L.M. Hoopes, Diana Johnson, Christopher J. Jones, Marian Kaehler, Gerard Mcneil

Publications and Research

Genomics is not only essential for students to understand biology but also provides unprecedented opportunities for undergraduate research. The goal of the Genomics Education Partnership (GEP), a collaboration between a growing number of colleges and universities around the country and the Department of Biology and Genome Center of Washington University in St. Louis, is to provide such research opportunities. Using a versatile curriculum that has been adapted to many different class settings, GEP undergraduates undertake projects to bring draft-quality genomic sequence up to high quality and/or participate in the annotation of these sequences. GEP undergraduates have improved more than 2 …

Analysis Of Large Scale Spatial Variability Of Soil Moisture Using A Geostatistical Method, Tarendra Lakhankar, Andrew S. Jones, Cynthia L. Combs, Manajit Sengupta, Thomas H. Vonder Haar, Reza Khanbilvardi

Publications and Research

Spatial and temporal soil moisture dynamics are critically needed to improve the parameterization for hydrological and meteorological modeling processes. This study evaluates the statistical spatial structure of large-scale observed and simulated estimates of soil moisture under pre- and post-precipitation event conditions. This large scale variability is a crucial in calibration and validation of large-scale satellite based data assimilation systems. Spatial analysis using geostatistical approaches was used to validate modeled soil moisture by the Agriculture Meteorological (AGRMET) model using in situ measurements of soil moisture from a state-wide environmental monitoring network (Oklahoma Mesonet). The results show that AGRMET data produces larger …

A Multidimensional Strategy To Detect Polypharmacological Targets In The Absence Of Structural And Sequence Homology, Jacob D. Durrant, Rommie E. Amaro, Lei Xie, Michael D. Urbaniak, Michael A. J. Ferguson, Antti Haapalainen, Zhijun Chen, Anne Marie Di Guilmi, Frank Wunder, Philip E. Bourne, J. Andrew Mccammon

Publications and Research

Conventional drug design embraces the ‘‘one gene, one drug, one disease’’ philosophy. Polypharmacology, which focuses on multi-target drugs, has emerged as a new paradigm in drug discovery. The rational design of drugs that act via polypharmacological mechanisms can produce compounds that exhibit increased therapeutic potency and against which resistance is less likely to develop. Additionally, identifying multiple protein targets is also critical for side-effect prediction. One third of potential therapeutic compounds fail in clinical trials or are later removed from the market due to unacceptable side effects often caused by off-target binding. In the current work, we introduce a multidimensional …

Deflagration With Quantum And Dipolar Effects In A Model Of A Molecular Magnet, Dmitry A. Garanin

Publications and Research

Combination of the thermal effet in magnetic deflagration with resonance spin tunneling controlled by the dipole-dipole interaction in molecular magnets leads to the increase of the deflagration speed in the dipolar window near tunneling resonances.

Interaction Of A Nanomagnet With A Weak Superconducting Link, Liufei Cai, Eugene M. Chudnovsky

Publications and Research

We study electromagnetic interaction of a nanomagnet with a weak superconducting link. Equations that govern coupled dynamics of the two systems are derived and investigated numerically. We show that the presence of a small magnet in the proximity of a weak link may be detected through Shapiro-like steps caused by the precession of the magnetic moment. Despite very weak magnetic field generated by the weak link, a time-dependent bias voltage applied to the link can initiate a non-linear dynamics of the nanomagnet that leads to the reversal of its magnetic moment. We also consider quantum problem in which a nanomagnet …

Arabic For Designers By Mourad Boutros, Saad D. Abulhab

Publications and Research

No abstract provided.

Theoretical And Experimental Study Of The Gem-Dimethyl (Thorpe-Ingold) Effect On The Rate Of The Bergman Cyclization Of The Eleven-Carbon Monocyclic Enediyne, Olga Lavinda

Student Theses and Dissertations

No abstract provided.

Acceptance, Communication Mode And Use Of Audio Computer- Assisted Self Interview Using Touchscreen To Identify Risk Factors Among Pregnant Minority Women, Jutta S. Thornberry, Kennan B. Murray, M. Nabil El-Khorazaty, Michele Kiely

Publications and Research

This paper evaluates the acceptability, communication mode and use of audio computer-assisted self-interview (A-CASI) among minority pregnant women receiving prenatal care in six Washington, DC sites. A total of 2,913 women were screened for demographic eligibility (18+ years old,gestation, Black/African-American or Hispanic) and risk (smoking, environmental tobacco smoke exposure, depression, intimate partner violence). Questions were displayed on touch screen laptop monitors and heard through earphones. The mean length of time to complete the screener was almost 6 minutes.

A-CASI experience, which included difficulty in using the computer, acceptability (enjoyment), and preferred communication mode, was compared across sites, the eligibility and …

Undergraduate Bulletin 2010-2011, John Jay College Of Criminal Justice

College Bulletins

No abstract provided.

Energy Of The Conduction Band In Near Critical Point Fluids, Cherice M. Evans, G. L. Findley

Publications and Research

The study of the evolution of the conduction band in dense gases and supercritical fluids near the critical point has been complicated by a lack of precise experimental measurements. Both photoemission from an electrode immersed in the fluid and field ionization of a molecule doped into the fluid have been used to probe solvent density effects on the energy of an excess electron as a function of fluid number density and temperature. In this perspective, we present recent experimental results that show a strong critical point effect on the minimumconduction band energy near the critical density and temperature of a …

Engagement At The Theater: Science In The Cinema, B. D. Stillion, John M. Pratte, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

The Invisible Enemy, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Climate Control Of Terrestrial Carbon Exchange Across Biomes And Continents, Chuixiang Yi, Daniel Ricciuto, Runze Li, John Wolbeck, Xiyan Xu, Mats Nilsson, Luis Aires, John D. Albertson, Christof Ammann, M Altaf Arain, Alessandro C. De Araujo, Marc Aubinet, Mika Aurela, Zoltan Barcza, Alan Barr, Paul Berbigier, Jason Beringer, Christian Bernhofer, Andrew T. Black, Paul V. Bolstad, Fred C. Bosveld, Mark S J Broadmeadow, Nina Buchmann, Sean P. Burns, Pierre Cellier, Jingming Chen, Jiquan Chen, Philippe Ciais, Robert Clement, Bruce D. Cook, Peter S. Curtis, D Bryan Dail, Ebba Dellwik, Nicolas Delpierre, Ankur R. Desai, Sabina Dore, Danilo Dragoni, Bert G. Drake, Eric Dufrêne, Allison Dunn, Jan Elbers, Werner Eugster, Matthias Falk, Christian Feigenwinter, Lawrence B. Flanagan, Thomas Foken, John Frank, Juerg Fuhrer, Damiano Gianelle, Allen Goldstein, Mike Goulden, Andre Granier, Thomas Grünwald, Lianhong Gu, Haiqiang Guo, Albin Hammerle, Shijie Han, Niall P. Hanan, László Haszpra, Bernard Heinesch, Carole Helfter, Dimmie Hendriks, Lindsay B. Hutley, Andreas Ibrom, Cor Jacobs, Torbjörn Johansson, Marjan Jongen, Gabriel Katul, Gerard Kiely, Katja Klumpp, Alexander Knohl, Thomas Kolb, Werner L. Kutsch, Peter Lafleur, Tuomas Laurila, Ray Leuning, Anders Lindroth, Heping Liu, Benjamin Loubet, Giovanni Manca, Michal Marek, Hank A. Margolis, Timothy A. Martin, William J. Massman, Roser Matamala, Giorgio Matteucci, Harry Mccaughey, Lutz Merbold, Tilden Meyers, Mirco Migliavacca, Franco Miglietta, Laurent Misson, Meelis Mölder, John Moncrieff, Russell K. Monson, Leonardo Montagnani, Mario Montes-Helu, Eddy Moors, Christine Moureaux, Mukufute M. Mukelabai, J William Munger, May Myklebust, Zoltán Nagy, Asko Noormets, Walter Oechel, Ram Oren, Stephen G. Pallardy, Kyaw Tha Paw U, João S. Pereira, Kim Pilegaard, Krisztina Pintér, Casimiro Pio, Gabriel Pita, Thomas L. Powell, Serge Rambal, James T. Randerson, Celso Von Randow, Corinna Rebmann, Janne Rinne, Federica Rossi, Nigel Roulet, Ronald J. Ryel, Jorgen Sagerfors, Nobuko Saigusa, María José Sanz, Giuseppe-Scarascia Mugnozza, Hans Peter Schmid, Guenther Seufert, Mario Siqueira, Jean-François Soussana, Gregory Starr, Mark A. Sutton, John Tenhunen, Zoltán Tuba, Juha-Pekka Tuovinen, Riccardo Valentini, Christoph S. Vogel, Jingxin Wang, Shaoqiang Wang, Weiguo Wang, Lisa R. Welp, Xuefa Wen, Sonia Wharton, Matthew Wilkinson, Christopher A. Williams, Georg Wohlfahrt, Susumu Yamamoto, Guirui Yu, Roberto Zampedri, Bin Zhao, Xinquan Zhao

Publications and Research

No abstract provided.

Use Of A Segmented Electrode To Control Current Distribution In Electrochemical Systems, Barry Van Tassell

Dissertations and Theses

"The goal of this project was to investigate the use of segmented electrodes to control the current distribution through an electrochemical cell. To achieve this goal, the project was separated into two parts, designing a scalable piece of hardware that could create a current distribution, and then using that hardware to create noticeable changes in a system by changing the current distribution within the system. Prior to building the current distribution device, a basic 3-electrode galvanostat was built in order to test its fundamental design characteristics. The design stressed a simplistic hardware, relying on software to control the current. A …

Selective Adsorption Of Dibenzothiophenes On Activated Carbons With Metal Species Deposited On Their Surfaces, Jakub Lison

Dissertations and Theses

"The objective of this thesis is an investigation of influence of porosity, surface chemistry, material composition and effects of metals oncarbon adsorbents in desulfurization of liquid fuels. Materials are derived from poly (4-styrenesulfonic acid-co-maleic acid) salts (sodium or transition metals). They are investigated in a dynamic breakthrough process using model diesel fuel containing dibenzothiophene (DBT) and 4, 6-dimethyldibenzothiophene (DMDBT). The performance of adsorbents is evaluated in terms of the capacity and selectivity. Differences in performance are investigated considering the porosity, surface chemistry and the type of material used."

Modular Synthesis Of Weinreb Amides Of 2-Fluoro-2,4-Dienoic Acids, Mohammad Chowdhury

Dissertations and Theses

No abstract provided.

Acceleration Of Monte Carlo Value At Risk Estimation Using Graphics Processing Unit (Gpu), Wei Wu

Dissertations and Theses

"Value at Risk (VaR) is one of the most popular tools used to estimate the exposure to market risks, and it measures the worst expected loss at a given confidence level. Monte Carlo simulation is one of the best methods to calculate VaR and it is widely used in financial industry. Unfortunately, it is time consuming especially when the simulated samples and the number of assets in a portfolio are very large. The graphics processing unit (GPU) is a specialized multiprocessor which has highly parallel structure supporting more effective than general-purpose CPUs for a range of complex algorithms. In this …

Multiresolution Inverse Wavelet Reconstruction From A Fourier Partial Sum, Nataniel Greene

Publications and Research

The Gibbs phenomenon refers to the lack of uniform convergence which occurs in many orthogonal basis approximations to piecewise smooth functions. This lack of uniform convergence manifests itself in spurious oscillations near the points of discontinuity and a low order of convergence away from the discontinuities.In previous work [11,12] we described a numerical procedure for overcoming the Gibbs phenomenon called the Inverse Wavelet Reconstruction method (IWR). The method takes the Fourier coefficients of an oscillatory partial sum and uses them to construct the wavelet coefficients of a non-oscillatory wavelet series. However, we only described the method standard wavelet series and …

Hostos Community College Academic Bulletin 2010-2012, Hostos Community College

College Bulletins

This is the official college catalog for 2010-2012. It contains course descriptions as well as information on degree programs, college resources and services, financial aid, admissions, and the academic calendar.

The Mds Mortality Risk Index: The Evolution Of A Method For Predicting 6-Month Mortality In Nursing Home Residents, Davina Porock, Debra Parker-Oliver, Gregory F. Petroski, Marilyn Rantz

Publications and Research

Background: Accurate prognosis is vital to the initiation of advance care planning particularly in a vulnerable, at risk population such as care home residents. The aim of this paper is to report on the revision and simplification of the MDS Mortality Rating Index (MMRI) for use in clinical practice to predict the probability of death in six months for care home residents.

Methods: The design was a secondary analysis of a US Minimum Data Set (MDS) for long term care residents using regression analysis to identify predictors of mortality within six months.

Results: Using twelve easy to collect …

Single Magnetic Molecule Between Conducting Leads: Effect Of Mechanical Rotations, Reem Jaafar, Eugene M. Chudnovsky, Dmitry A. Garanin

Publications and Research

We study spin-rotation effects in a magnetic molecule bridge d between two conducting leads. Dy- namics of the total angular momentum couples spin tunneling to the mechanical rotations. Landau- Zener spin transition produced by the time-dependent magne tic field generates a unique pattern of mechanical oscillations that can be detected by measuring t he electronic tunneling current through the molecule.

Rotational States Of Magnetic Molecules, Eugene M. Chudnovsky, Dmitry A. Garanin

Publications and Research

We study a magnetic molecule that exhibits spin tunneling and is free to rotate about its anisotropy axis. Exact low-energy eigenstates of the molecule that are superpositions of spin and rotational states are obtained. We show that parameter α=2(ℏS)2/(IΔ) determines the ground state of the molecule. Here ℏS is the spin, I is the moment of inertia, and Δ is the tunnel splitting. The magnetic moment of the molecule is zero at α<αc=[1−1/(2S)2]−1 and non-zero at α>αc. At α→∞ the spin of the molecule localizes in one of the directions along the anisotropy axis.

Rotational Doppler Effect In Magnetic Resonance, S Ledinez, Eugene M. Chudnovsky, Javier Tejada

Publications and Research

We compute the shift in the frequency of the spin resonance in a solid that rotates in the field of a circularly polarized electromagnetic wave. Electron spin resonance, nuclear magnetic resonance, and ferromagnetic resonance are considered. We show that contrary to the case of the rotating LC circuit, the shift in the frequency of the spin resonance has strong dependence on the symmetry of the receiver. The shift due to rotation occurs only when rotational symmetry is broken by the anisotropy of the gyromagnetic tensor, by the shape of the body, or by magnetocrystalline anisotropy. General expressions for the resonance …