bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of light‐barrier property of packaging film on the photo‐oxidation and shelf life of cookies based on accelerated tests
Authors: Lu Li‐Xin , Xu Fang 
Published: November 2008

AbstractThe influences of intensity of ultraviolet (UV) light, light‐barrier property of packaging film on the fat photo‐oxidation and accelerated shelf life of cookies were studied. Unpacked cookies were stored at a temperature of 408C and a relative humidity (RH) of 50% for 10 to 65 days, with an intensity of the UV light of 0.3, 1.9 and 9.5 mW/cm2. Meanwhile, the same batch of cookies was packed with oriented nylon/polyethylene, polyethylene terephthalate/oriented nylon/polyethylene and bi‐oriented polypropylene/vacuuming aluminized casting polypropylene and stored at the same temperature and RH and UV‐light intensity of 1.9 mW/cm2 for more than 40 days. The peroxide values (POV) of cookies were measured under the storage conditions. The results showed that the intensity of the UV light and light‐barrier property of film had notable influence on the photo‐oxidation rate and accelerated shelf life of cookies. According to the threshold of POV, unpacked cookies were rancid less than 32 and 11 days when exposed in light of 1.9 and 9.5 mW/cm2 in the accelerated test, respectively. In contrast, the shelf life of unpacked cookies in darkness, or cookies packed in high light‐barrier package was more than 75 days. Logarithm of POV and store‐time relationship under different UV‐light illumination was successfully fitted by linear regression under the same temperature, RH and the accelerated shelf‐life‐based oxide index was estimated. Copyright © 2008 John Wiley & Sons, Ltd.
Process capability indices for Weibull distributions and upper specification limits
Authors: Albing Malin 
Published: November 2008

AbstractWe consider a previously proposed class of capability indices that are useful when the quality characteristic of interest has a skewed, zero‐bound distribution with a long tail towards large values and there is an upper specification with a pre‐specified target value, T=0. We investigate this class of process capability indices when the underlying distribution is a Weibull distribution and focus on the situation when the Weibull distribution is highly skewed. We propose an estimator of the index in the studied class, based on the maximum likelihood estimators of the parameters in the Weibull distribution, and derive an asymptotic distribution for this estimator. Furthermore, we suggest a decision rule based on the estimated index and its asymptotic distribution and present a power comparison between the proposed estimator and a previously studied estimator. A simulation study is also performed to investigate the true significance level when the sample size is small or moderate. An example from a Swedish industry is presented. Copyright © 2008 John Wiley & Sons, Ltd.
Bayesian np control charts with adaptive sample size for finite production runs
Authors: Kooli Imen , Limam Mohamed 
Published: November 2008

AbstractThe design of a control chart requires the specification of three decision variables, namely the sample size, n, the sampling interval, h, and the action limit under which the process must be stopped for potential repair. In this paper, the Bayesian attribute control chart, namely the np chart for short run production, using a variable sample size is discussed. In a simulated experiment, optimal solutions of the static np chart, the basic Bayesian np chart, and the Bayesian scheme with adaptive sample size are presented. Results of the empirical study show that varying the sample size leads to more cost savings compared with the other two approaches. In order to detect how the input parameters affect decision variables, a regression analysis is conducted. It is obtained that the benefits of using the basic Bayesian np chart and the Bayesian chart with adaptive sample size instead of the static scheme are affected by the length of the production run. Copyright © 2008 John Wiley & Sons, Ltd.
ProteinQuant Suite: a bundle of automated software tools for label‐free quantitative proteomics
Authors: Mann Benjamin , Madera Milan , Sheng Quanhu , Tang Haixu , Mechref Yehia , Novotny Milos V. 
Published: November 2008

AbstractIn simplifying the evaluation and quantification of high‐throughput label‐free quantitative proteomic data, we introduce ProteinQuant Suite. It comprises three standalone complementary computer utilities, namely ProtParser, ProteinQuant, and Turbo RAW2MGF. ProtParser is a filtering utility designed to evaluate database search results. Filtering is performed according to different criteria that are defined by the end‐user. ProteinQuant then utilizes this parsed list of peptides and proteins in conjunction with mzXML or mzData files generated from the raw files for quantification. This quantification is based on the automatic detection and integration of chromatographic peaks representative of the liquid chromatography/mass spectrometry (LC/MS) elution profiles of identified peptides. Turbo RAW2MGF was developed to extend the applicability of ProteinQuant Suite to data collected from different types of mass spectrometers. It directly processes raw data files generated by Xcalibur, a ThermoElectron data acquisition software, and generates a MASCOT generic file (MGF). This file format is needed since the protein identification results generated by the database search employing this file format include information required for the precise identification and quantification of chromatographic peaks. The performance of ProteinQuant Suite was initially validated using LC/MS/MS generated for a mixture of standard proteins as well as standard proteins spiked in a complex biological matrix such as blood serum. Automated quantification of the collected data resulted in calibration curves with R2 values higher than 0.95 with linearity spanning over more than 2 orders of magnitude with peak quantification reproducibility better than 15% (RSD). ProteinQuant Suite was also applied to confirm the binding preference of standard glycoproteins to Con A lectin using a sample consisting of both standard glycoproteins and proteins. Copyright © 2008 John Wiley & Sons, Ltd.
Inf–sup control of discontinuous piecewise affine systems
Authors: Spjøtvold J. , Kerrigan E. C. , Mayne D. Q. , Johansen T. A. 
Published: November 2008

AbstractThis paper considers the worst‐case optimal control of discontinuous piecewise affine (PWA) systems, which are subjected to constraints and disturbances. We seek to pre‐compute, via dynamic programming, an explicit control law for these systems when a PWA cost function is utilized. One difficulty with this problem class is that, even for initial states for which the value function of the optimal control problem is finite, there might not exist a control law that attains the infimum. Hence, we propose a method that is guaranteed to obtain a sub‐optimal solution, and where the degree of sub‐optimality can be specifieda priori. This is achieved by approximating the underlying sub‐problems with a parametric piecewise linear program. Copyright © 2008 John Wiley & Sons, Ltd.
Optimal tracking control across erasure communication links in the presence of preview
Authors: Gupta Vijay , Martins Nuno C. 
Published: November 2008

AbstractConsider two identical discrete‐time, finite‐dimensional, linear and time‐invariant systems denoted as the leader and the follower. The leader system is driven by a deterministic control input and by a zero‐mean white Gaussian process noise. In this paper, we address the problem of designing a networked control scheme for the follower system, which guarantees that the state of the follower system tracks the state of the leader system optimally, according to a mean‐squared cost. We adopt a networked control architecture featuring two erasure links and three design blocks: a controller acting on the follower system and two encoders, one at the output of each system. The controller has remote access to noisy measurements of the state of both systems via two erasure links that are used to connect each encoder to the controller. We consider erasure links whose erasure events occur according to a Bernoulli process. If an erasure occurs, then no information is transmitted; otherwise, a finite vector of real numbers is conveyed through the link. The purpose of the encoders is to process noisy measurements of the output of each system prior to transmission over the corresponding erasure link. While the encoder of the follower system has access to current measurements, the encoder of the leader system has access to measurements that are advanced in time by a finite time interval (also denoted as preview). This paper describes a methodology for the design of controller and encoders that are jointly optimal, with respect to optimal tracking of the leader system by the follower system. We also obtain explicit necessary and sufficient conditions for the existence of a scheme that guarantees that the tracking error has finite second moment. Copyright © 2008 John Wiley & Sons, Ltd.
Testing monotone high‐dimensional distributions
Authors: Rubinfeld Ronitt , Servedio Rocco A. 
Published: November 2008

AbstractA monotone distribution P over a (partially) ordered domain has P(y) ≥ P(x) if y ≥ x in the order. We study several natural problems of testing properties of monotone distributions over the n‐dimensional Boolean cube, given access to random draws from the distribution being tested. We give a poly(n)‐time algorithm for testing whether a monotone distribution is equivalent to or ϵ‐far (in the L1 norm) from the uniform distribution. A key ingredient of the algorithm is a generalization of a known isoperimetric inequality for the Boolean cube. We also introduce a method for proving lower bounds on testing monotone distributions over the n‐dimensional Boolean cube, based on a new decomposition technique for monotone distributions. We use this method to show that our uniformity testing algorithm is optimal up to polylog(n) factors, and also to give exponential lower bounds on the complexity of several other problems (testing whether a monotone distribution is identical to or ϵ‐far from a fixed known monotone product distribution and approximating the entropy of an unknown monotone distribution). © 2008 Wiley Periodicals, Inc. Random Struct. Alg., 2009
A sharp threshold for the Hamilton cycle Maker–Breaker game
Authors: Hefetz Dan , Krivelevich Michael , Stojaković Miloš , Szabó Tibor 
Published: November 2008

AbstractWe study the Hamilton cycle Maker–Breaker game, played on the edges of the random graph G(n,p). We prove a conjecture from (Stojaković and Szabó, Random Struct and Algorithms 26 (2005), 204–223.), asserting that the property that Maker is able to win this game, has a sharp threshold at $\log n \over n$. Our theorem can be considered a game‐theoretic strengthening of classical results from the theory of random graphs: not only does G(n,p) almost surely admit a Hamilton cycle for $p = ( 1 + \varepsilon) {{\log n} \over {n}}$, but Maker is able to build one while playing against an adversary. © 2008 Wiley Periodicals, Inc. Random Struct. Alg., 2009
Helium ion microscopy and its application to nanotechnology and nanometrology
Authors: Postek Michael T. , Vladár Andras E. 
Published: November 2008

AbstractHelium ion microscopy (HeIM) presents a new approach to nanotechnology and nanometrology, which has several potential advantages over the traditional scanning electron microscope (SEM) currently in use in research laboratories and manufacturing facilities across the world. Owing to the very high source brightness, and the shorter wavelength of the helium (He) ions, it is theoretically possible to focus the ion beam into a smaller probe size relative to that of the electron beam of an SEM. Hence, resolution 2 × – 4 × better than that of comparable SEMs is theoretically possible. In an SEM, an electron beam interacts with the sample and an array of signals are generated, collected and imaged. This interaction zone may be quite large depending upon the accelerating voltage and materials involved. Conversely, the helium ion beam interacts with the sample, but it does not have as large an excitation volume and, thus, the image collected is more surface sensitive and can potentially provide sharp images on a wide range of materials. Compared with an SEM, the secondary electron yield is quite high—allowing for imaging at extremely low beam currents and the relatively low mass of the helium ion, in contrast to other ion sources such as gallium, potentially results in minimal damage to the sample. This article reports on some of the preliminary work being done on the HeIM as a research and measurement tool for nanotechnology and nanometrology being done at NIST. SCANNING 30: 457–462, 2008. Published 2008 by Wiley Periodicals, Inc.
Detection of Single Photoluminescent Diamond Nanoparticles in Cells and Study of the Internalization Pathway
Authors: Faklaris Orestis , Garrot Damien , Joshi Vandana , Druon Frédéric , Boudou Jean‐Paul , Sauvage Thierry , Georges Patrick , Curmi Patrick A. , Treussart François 
Published: November 2008

AbstractDiamond nanoparticles are promising photoluminescent probes for tracking intracellular processes, due to embedded, perfectly photostable color centers. In this work, the spontaneous internalization of such nanoparticles (diameter 25 nm) in HeLa cancer cells is investigated by confocal microscopy and time‐resolved techniques. Nanoparticles are observed inside the cell cytoplasm at the single‐particle and single‐color‐center level, assessed by time‐correlation intensity measurements. Improvement of the nanoparticle signal‐to‐noise ratio inside the cell is achieved using a pulsed‐excitation laser and time‐resolved detection taking advantage of the long radiative lifetime of the color‐center excited state as compared to cell autofluorescence. The internalization pathways are also investigated, with endosomal marking and colocalization analyses. The low colocalization ratio observed proves that nanodiamonds are not trapped in endosomes, a promising result in prospect of drug delivery by these nanoparticles. Low cytotoxicity of these nanoparticles in this cell line is also shown.
Spectral efficiency comparison between OFDM/OQAM‐ and OFDM‐based CR networks
Authors: Zhang Haijian , Le Ruyet Didier , Terre Michel 
Published: November 2008

AbstractThe future wireless communication is expected to be able to improve the efficiency of spectrum usage. To solve the challenge of spectrum shortage, an innovative opportunistic spectrum access strategy, called cognitive radio (CR) has been proposed. In the concept of CR, secondary users or CR users, are allowed to transmit and receive date by detecting the portions of spectra where/when primary users are inactive provided that secondary transmissions cause no harmful interference to the licensed systems. Conventional orthogonal frequency division multiplexing (OFDM) has also been suggested as a physical layer candidate for CR system. In this paper, another potential candidate for CR, OFDM/offset quadrature amplitude modulation (OQAM) is introduced and compared with cyclic prefix based‐OFDM (CP‐OFDM) and raised cosine windowed‐OFDM (RC‐OFDM) in CR context, in which including spectral efficiency comparison (SEC) for uncoded transmission and coded transmission. SEC is investigated by balancing the tradeoff between the interference level caused by CR user to licensed user (LU) and the throughput of CR user. Simulated results of SEC for different multicarrier systems are interpreted by theoretically analyzing the out‐of‐band radiation of their prototype pulses shaping. Both theoretic analysis and experimental results can show that OFDM/OQAM is a more natural candidate than CP‐OFDM and RC‐OFDM for CR networks application. Copyright © 2008 John Wiley & Sons, Ltd.
Fingerprinting and source apportionment of fine particle pollution in Manila by IBA and PMF techniques: A 7‐year study
Authors: Cohen David D. , Stelcer E. , Santos Flora L. , Prior Michael , Thompson Craig , Pabroa Preciosa C. B. 
Published: November 2008

AbstractX‐ray and ion beam analysis (IBA) techniques have been used to characterize fine particle pollution in Manila over a 7‐year period. These data have then been used in the latest statistical methods of positive matrix factorization (PMF) to quantitatively identify source fingerprints and their contributions to the total fine particulate mass. Copyright © 2008 John Wiley & Sons, Ltd.
Mutual benefits of research collaborations between zoos and academic institutions
Authors: Fernandez Eduardo J. , Timberlake William 
Published: November 2008

AbstractZoos focus on welfare, conservation, education, and research related to animals they keep. Academic institutions emphasize description, experimentation, modeling, and teaching of general and specific animal biology and behavior through work in both laboratory and field. The considerable overlap in concerns and methods has increased interest in collaborative projects, but there is ample room for closer and more extensive interactions. The purpose of this article is to increase awareness of potential research collaborations in three areas: (1) control and analysis of behavior, (2) conservation and propagation of species, and (3) education of students and the general public. In each area, we outline (a) research in zoos, (b) research in academics, and (c) potential collaborative efforts. Zoo Biol 27:470–487, 2008. © 2008 Wiley‐Liss, Inc.
Costeff optic atrophy syndrome: New clinical case and novel molecular findings
Authors: Ho G. , Walter J. H. , Christodoulou J. 
Published: November 2008

Summary3‐Methylglutaconic aciduria (MGA) encompasses a heterogeneous group of disorders, often coinciding with elevated levels of urinary 3‐methylglutaric acid. Type I MGA is a disorder of leucine metabolism, while the biological basis for the MGA is unclear for the other types (MGA types II–V). MGA type III (Costeff optic atrophy syndrome, autosomal recessive optic atrophy‐3 or optic atrophy plus syndrome, OMIM 258501) is distinguished by early bilateral optic atrophy, later‐onset spasticity, extrapyramidal dysfunction, ataxia, and occasional cognitive deficits. It is caused by homozygous mutations in the optic atrophy 3 gene (OPA3). We present a case of a patient with MGA who has infantile‐onset optic atrophy, ataxia, extrapyramidal movements and spasticity, but with normal intellect. Sequencing of the patient's DNA revealed a homozygous nonsense mutation c.415C>T (p.Q139X) in exon 2 of transcript 2 of the OPA3 gene, as well as a common silent polymorphism c.231T>C in the same exon. This is the first nonsense mutation found in OPA3. The molecular findings in OPA3 are also reviewed, including mutations in OPA3 that result in autosomal dominant optic atrophy and cataract (ADOAC). The recessive mode of inheritance of MGA type III as a result of the p.Q139X mutation is supported by the carrier status of the unaffected father.
A Quiet Revolution: The Birth of the Genetic Counselor at Sarah Lawrence College, 1969
Authors: Stern Alexandra Minna 
Published: November 2008

AbstractIn 1969 Melissa Richter founded the first master's degree genetic counseling program in the country at Sarah Lawrence College in Bronxville, New York. This article examines the myriad factors that contributed to the birth of the genetic counselor and situates this historical watershed in its social, cultural, academic, and medical context. This article highlights Richter's prescience and path‐breaking vision, evaluates the Sarah Lawrence program during the years of her directorship (1969–1972), and explores how this early foundation subsequently shaped the field of genetic counseling. Close attention is paid to the ethical issues that concerned Richter and their ongoing relevance to genetic health professionals today. This article is based on historical research in archives, consultation of primary sources, and oral history interviews with genetic counselors, geneticists, and allied professionals.
Evolution of ZnS Nanoparticles via Facile CTAB Aqueous Micellar Solution Route: A Study on Controlling Parameters
Authors: Mehta SK , Kumar Sanjay , Chaudhary Savita , Bhasin KK , Gradzielski Michael 
Published: November 2008

Abstract
Synthesis of semiconductor nanoparticles with new photophysical properties is an area of special interest. Here, we report synthesis of ZnS nanoparticles in aqueous micellar solution of Cetyltrimethylammonium bromide (CTAB). The size of ZnS nanodispersions in aqueous micellar solution has been calculated using UV-vis spectroscopy, XRD, SAXS, and TEM measurements. The nanoparticles are found to be polydispersed in the size range 6–15 nm. Surface passivation by surfactant molecules has been studied using FTIR and fluorescence spectroscopy. The nanoparticles have been better stabilized using CTAB concentration above 1 mM. Furthermore, room temperature absorption and fluorescence emission of powdered ZnS nanoparticles after redispersion in water have also been investigated and compared with that in aqueous micellar solution. Time-dependent absorption behavior reveals that the formation of ZnS nanoparticles depends on CTAB concentration and was complete within 25 min.
ON THE DENSITY OF INTEGERS OF THE FORM (p−1)2−n IN ARITHMETIC PROGRESSIONS
Authors: SUN XUE-GONG , FANG JIN-HUI 
Published: November 2008

AbstractErdős and Odlyzko proved that odd integers k such that k2n+1 is prime for some positive integer n have a positive lower density. In this paper, we characterize all arithmetic progressions in which natural numbers that can be expressed in the form (p−1)2−n (where p is a prime number) have a positive proportion. We also prove that an arithmetic progression consisting of odd numbers can be obtained from a covering system if and only if those integers in such a progression which can be expressed in the form (p−1)2−n have an asymptotic density of zero.
MULTIPLICITIES IN SYLOW SEQUENCES AND THE SOLVABLE RADICAL
Authors: KAPLAN GIL , LEVY DAN 
Published: November 2008

AbstractA complete Sylow sequence, 𝒫=P1,…,Pm, of a finite group G is a sequence of m Sylow pi-subgroups of G, one for each pi, where p1,…,pm are all of the distinct prime divisors of |G|. A product of the form P1⋯Pm is called a complete Sylow product of G. We prove that the solvable radical of G equals the intersection of all complete Sylow products of G if, for every composition factor S of G, and for every ordering of the prime divisors of |S|, there exist a complete Sylow sequence 𝒫 of S, and g∈S such that g is uniquely factorizable in 𝒫 . This generalizes our results in Kaplan and Levy [‘The solvable radical of Sylow factorizable groups’, Arch. Math.85(6) (2005), 490–496].