compendia types: Published Papers(130) Journal or Magazine Articles(44) Working Papers(1) Problem Sets(1) Books(1)

research fields: Computer and Information Sciences(175) Statistics(2) Econometrics(2)

101 through 125 of 272 results

Journal of Financial Economics

John Y. Campbell, Yeung Lewis Chan, Luis M. Viceira

We develop an approximate solution method for the optimal consumption and portfolio choice problem of an infinitely long-lived investor with Epstein–Zin utility who faces a set of asset returns described by a vector autoregression in returns and state variables. Empirical estimates in long-run annual and post-war quarterly U.S. data suggest that the predictability of stock returns greatly increases the optimal demand for stocks. The role of nominal bonds in long-term portfolios depends on the importance of real interest rate risk relative to other sources of risk. Long-term inflation-indexed bonds greatly increase the utility of conservative investors.

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PLoS Computational Biology

Joern Toedling, Wolfgang Huber, Fran Lewitter

Bioconductor is an open source and open development software project for the analysis and comprehension of genomic data, and it offers tools that cover a broad range of computational methods, visualizations, and experimental data types, and is designed to allow the construction of scalable, reproducible, and interoperable workflows. A consequence of the wide range of functionality of Bioconductor and its concurrency with research progress in biology and computational statistics is that using its tools can be daunting for a new user. Various books provide a good general introduction to R and Bioconductor, and most Bioconductor packages are accompanied by extensive ...

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Clinical Microbiology: Open Access

Mahendra Kumar Trivedi

Stenotrophomonas maltophilia ( S. maltophilia ) is a Gram-negative bacillus, an opportunistic pathogen, particularly among nosocomial infections. Multi-drug resistant strains are associated with very high rate of morbidity and mortality in severely immunocompromised patients. Present study was designed to evaluate the effect of biofield treatment against multidrug resistant S. maltophilia . Clinical sample of S. maltophilia was collected and divided into two groups i.e. control and biofield treated which were analyzed after 10 days with respect to control. The following parameters viz. susceptibility pattern, minimum inhibitory concentration (MIC), biochemical studies and biotype number of both control and treated samples were ...

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Thermodynamics & Catalysis

Mahendra Kumar Trivedi, Gopal Nayak

Cadmium is widely utilized in nickel-cadmium batteries, stabilizers, and coating applications due to its versatile physico-chemical properties. The aim of present study was to evaluate the impact of biofield treatment on atomic, thermal, and physical properties of cadmium powder. The cadmium powder was divided into two groups, one group as control and another group as treated. The treated group received Mr. Trivedi’s biofield treatment. Control and treated samples were characterized using X-ray diffraction (XRD), differential scanning calorimetry (DSC), particle size analyzer, surface area analyzer, and scanning electron microscopy (SEM). XRD results showed significant alteration in lattice parameter, unit cell volume, ...

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F1000Research

Aditya K Padhi, Suhas V Vasaikar, Bhyravabhotla Jayaram, James Gomes

  • The Hypertext Preprocessor (PHP) server-side scripting language was used to prepare the source code of ANGDelMut web-tool. The ANGDelMut web-based tool is was developed in MySQL.
  • Once a user submits an angiogenin (ANG) mutation, the algorithm implemented through PHP script runs and the mutation is submitted to an APACHE http server located in the computer service centre of the Indian Institute of Technology Delhi.
  • The mutated protein is prepared in silico and a standard protocol based molecular dynamics (MD) simulations is being initialised using Assisted Model Building with Energy Refinement (AMBER 11) software suite (a licensed and third party ...

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Modern Chemistry & Applications

Mahendra Kumar Trivedi

The stability of any pharmaceutical compound is most desired quality that determines its shelf life and effectiveness.The stability can be correlated to structural and bonding properties of compound and any variation arise in these properties can be easily determined by spectroscopic analysis. The present study was aimed to evaluate the impact of biofield treatment on these properties of four pharmaceutical compounds such as urea, thiourea, sodium carbonate,and magnesium sulphate, using spectroscopic analysis. Each compound was divided into two groups, referred as control and treatment. The control groups remained as untreated and treatment group of each compound received Mr. Trivedi’s biofield ...

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Structure

Feng Zhao, Jinbo Xu

Although studied extensively, designing highly accurate protein energy potential is still challenging. A lot of knowledge-based statistical potentials are derived from the inverse of the Boltzmann law and consist of two major components: observed atomic interacting probability and reference state. These potentials mainly distinguish themselves in the reference state and use a similar simple counting method to estimate the observed probability, which is usually assumed to correlate with only atom types. This article takes a rather different view on the observed probability and parameterizes it by the protein sequence profile context of the atoms and the radius of the gyration, ...

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PLoS ONE

Steven W. Kembel, James F. Meadow, Timothy K. O’Connor, Gwynne Mhuireach, Dale Northcutt, Jeff Kline, Maxwell Moriyama, G. Z. Brown, Brendan J. M. Bohannan, Jessica L. Green, Bryan A. White

Architectural design has the potential to influence the microbiology of the built environment, with implications for human health and well-being, but the impact of design on the microbial biogeography of buildings remains poorly understood. In this study we combined microbiological data with information on the function, form, and organization of spaces from a classroom and office building to understand how design choices influence the biogeography of the built environment microbiome.

Sequencing of the bacterial 16S gene from dust samples revealed that indoor bacterial communities were extremely diverse, containing more than 32,750 OTUs (operational taxonomic units, 97% sequence similarity cutoff), but ...

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SSRN (2012)

Grégory Levieuge, Yannick Lucotte

This code allows to replicate the results obtained for the United States in the corresponding paper. More precisely, it replicates the U.S. optimal monetary policy rule for 3 alternative values of λ - the preference parameter devoted to the inflation variability in equation (1): Lambda_KM, Lambda_CONS, and Lambda_CONSW. Running the code, the user will find the optimal reaction coefficients βy and βπ as in table 4. Moreover, the program replicates the graphs of the last plot of the figure 9, and delivers the composition of the matrices A1, A2 and B following the very first step of the program (GMM ...

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Aerosol Science and Technology

A. Prakash, A. P. Bapat, M. R. Zachariah

In this article, a simple numerical method to solve the general dynamic equation (GDE) has been described and the software made available. The model solution described is suitable for problems involving gas-to-particle conversion due to supersaturation, coagulation, and surface growth of particles via evaporation/condensation of monomers. The model is based on simplifying the sectional approach to discretizing the particle size distribution with a nodal form. The GDE developed here is an extension of the coagulation equation solution method developed by Kari Lehtinen, wherein particles exist only at nodes, as opposed to continuous bins in the sectional method. The results have ...

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Econometric Theory (2010)

Juan Carlos Escanciano

For a user defined ARMA-GARCH model, the code evaluates the CvVn an KSn statistices defined in the Escanciano’s article, the objective being to realize a joint test for the specification of the mean and the variance equations.The statistics are given for various initial weights (g0 in the Escanciano’s paper) in order to study specific deviations from the null hypothesis.

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Institute for Computational and Applied Mathematics at the University of Muenster (2013)

Christian Himpe, Mario Ohlberger

acc %runs the code and outputs results. acc(1) %runs the code and outputs results and plots. Code is compatible to Octave >= 3.6.3. For further info see paper.

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Institute for Computational and Applied Mathematics at the University of Muenster (2013)

Christian Himpe, Mario Ohlberger

acc %runs the code and outputs results. acc(1) %runs the code and outputs results and plots. Code is compatible to Octave >= 3.6.3. For further info see paper.

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Journal of Time Series Analysis (2009)

Christian Francq, Jean-Michel Zakoian Coders: Christian Francq, Jean-Michel Zakoian

The program, written in R, is a modification of the R function acf. It plots the sample autocorrelations, the standard significance bounds in blue dotted lines and generalized significant bounds in red lines. Sample autocorrelations quite outside the bounds are generally considered as evidence against the white noise hypothesis. The standard significant bounds are 95% bounds for the sample autocorrelations of a strong (i.e. iid) white noise. The red bounds are valid for more general white noises, which can exhibit conditional heteroscedasticity or more general forms of nonlinear dynamics (see Francq, C. and Zakoïan, J-M. Bartlett's formula for a general ...

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García Nossa, Antonio

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Multicore Software Engineering, Performance, and Tools Lecture Notes in Computer Science

David Hutchison, Takeo Kanade, Josef Kittler, Jon M. Kleinberg, Friedemann Mattern, John C. Mitchell, Moni Naor, Oscar Nierstrasz, C. Pandu Rangan, Bernhard Steffen, Madhu Sudan, Demetri Terzopoulos, Doug Tygar, Moshe Y. Vardi, Gerhard Weikum, Victor Pankratius, Michael Philippsen, Jan Waller, Wilhelm Hasselbring

Application-level monitoring is required for continuously operating software systems to maintain their performance and availability at runtime. Performance monitoring of software systems requires storing time series data in a monitoring log or stream. Such monitoring may cause a significant runtime overhead to the monitored system.

In this paper, we evaluate the influence of multi-core processors on the overhead of the Kieker application-level monitoring framework. We present a breakdown of the monitoring overhead into three portions and the results of extensive controlled laboratory experiments with microbenchmarks to quantify these portions of monitoring overhead under controlled and repeatable conditions. Our experiments show ...

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Psychonomic Bulletin & Review

Etienne P. LeBel, Christopher J. Wilbur

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Alternative & Integrative Medicine

Mahendra Kumar Trivedi

Raoultella ornithinolytica is belongs to the family of Enterobacteriaceae, a Gram-negative encapsulated aerobic bacillus associated with bacteremia and urinary tract infections. As biofield therapy is increasingly popular in biomedical heath care, so present study aimed to evaluate the impact of Mr. Trivedi’s biofield treatment on antimicrobial sensitivity, minimum inhibitory concentration (MIC), biochemical study, and biotype number of multidrug resistant strain of R. ornithinolytica. Clinical sample of R. ornithinolytica was divided into two groups i.e. control and biofield treated which were analyzed for the above parameters using MicroScan Walk-Away ® system on day 10 after treatment. Antimicrobial sensitivity assay results showed ...

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Environmental Analytical Chemistry

Mahendra Kumar Trivedi, Alice Branton, Dahryn Trivedi, Gopal Nayak

Indole compounds are important class of therapeutic molecules, which have excellent pharmaceutical applications. The objective of present research was to investigate the influence of biofield treatment on physical and thermal properties of indole. The study was performed in two groups (control and treated). The control group remained as untreated, and biofield treatment was given to treated group. The control and treated samples were characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR) spectroscopy and ultraviolet-visible (UV-Vis) spectroscopy. XRD study demonstrated the increase in crystalline nature of treated indole as compared to control. Additionally, ...

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Frontiers in Environmental Microbiology

Satyendra

Due to intensive agriculture, rapid industrialization and anthropogenic activities have caused environmental pollution, land degradation and increased pressure on the natural resources and contributing to their adulteration.

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Statistical Analysis and Data Mining

S. Gardner-Lubbe, N. J. le Roux, H. Maunders, V. Shah, S. Patwardhan

Although principal component analysis is widely used in the exploration of microarray data, the advantages of constructing a biplot as multivariate analog to a scatterplot is seldom exploited. This paper illustrates the benefits of using biplots with microarray data to (1) visually display both the treatments and genes of such extreme high-dimensional data in a single plot, (2) relate the treatments to the underlying biological process through the use of biplot axes, and (3) to optimally separate classes and explore the differentially associated expression in genes. In this analysis, we have used gene expression measurements from human bronchial epithelial cells ...

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Charles Joseph Minard

Minard's representation of Napoleon's attack upon and retreat from Moscow, in the winter of 1812-1813. The graphic encodes information on the location and size of Napoleon's army, as well as the temperature during the return march.

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Aeronautics & Aerospace Engineering

Mahendra Kumar Trivedi, Alice Branton, Dahryn Trivedi, Gopal Nayak

Aluminium carbide (Al4C3) has gained extensive attention due to its abrasive and creep resistance properties. Aim of the present study was to evaluate the impact of biofield treatment on physical and structural properties of Al4C3 powder. The Al4C3 powder was divided into two parts i.e. control and treated. Control part was remained as untreated and treated part received biofield treatment. Subsequently, control and treated Al4C3 samples were characterized using X-ray diffraction (XRD), surface area analyser and Fourier transform infrared spectroscopy (FTIR). XRD data revealed that lattice parameter and unit cell volume of treated Al4C3 samples were increased by 0.33 and ...

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Powder Metallurgy & Mining

Mahendra Kumar Trivedi, Gopal Nayak

Brass, a copper-zinc (Cu-Zn) alloy has gained extensive attention in industries due to its high corrosion resistance, machinability and strength to weight ratio. The aim of present study was to evaluate the effect of biofield treatment on structural and physical properties of brass powder. The brass powder sample was divided into two parts: control and treated. The treated part was subjected to Mr.Trivedi’s biofield treatment. Control and treated brass powder were characterized using particle size analyser, X-ray diffraction (XRD), scanning electron microscope (SEM), and Fourier transform infrared (FT-IR) spectroscopy. The result showed that the average particle size, d50and d99 (size ...

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Powder Metallurgy & Mining

Mahendra Kumar Trivedi, Alice Branton, Dahryn Trivedi, Gopal Nayak

Chromium (VI) oxide (CrO3) has gained extensive attention due to its versatile physical and chemical properties. The objective of the present study was to evaluate the impact of biofield treatment on physical, thermal and structural properties of CrO3 powder. In this study, CrO3 powder was divided into two parts i.e. control and treatment. Control part was remained as untreated and treated part received Mr. Trivedi’s biofield treatment. Subsequently, control and treated CrO3 samples were characterized using Thermo gravimetric analysis-differential thermal analysis (TGA-DTA), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FT-IR). DTA showed that the melting point of treated CrO3 ...

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101 through 125 of 272 results