bluuebunny/crossref_metadata_2025_split huggingface dataset:
A new multi‐use multi‐secret sharing scheme based on the duals of minimal linear codes
Authors: Song Yun , Li Zhihui , Li Yongming , Li Jing 
Published: March 2014

ABSTRACTThere are several methods to construct multi‐secret sharing schemes, one of which is based on coding theory. Generally, however, it is very hard to determine the minimal access structures of the schemes based on linear codes. In this paper, we first propose the concept of minimal linear codes so as to make it easier to determine the access structures of the schemes based on the duals of minimal linear codes. It is proved that the shortening codes of minimal linear codes are also minimal ones. Then we present the algorithm to determine whether a class of linear codes are minimal. On the basis of our aforementioned studies, we further devise a new multi‐use multi‐secret sharing scheme based on the dual code of a minimal linear code, where each participant has to carry only one share. Furthermore, we study the minimal access structures of the multi‐secret sharing scheme and present specific examples through programming. Copyright © 2014 John Wiley & Sons, Ltd.
Knockdown of Nucleosome Assembly Protein 1-Like 1 Induces Mesoderm Formation and Cardiomyogenesis Via Notch Signaling in Murine-Induced Pluripotent Stem Cells
Authors: Gong Hui , Yan Yuan , Fang Bo , Xue Yuanyuan , Yin Peipei , Li Lu , Zhang Guoping , Sun Xia , Chen Zhidan , Ma Hong , Yang Chunjie , Ding Yingjiong , Yong Ye , Zhu Yichun , Yang Huangtian , Komuro Issei , Ge Junbo , Zou Yunzeng 
Published: March 2014

Abstract
Low efficiency of cardiomyocyte differentiation from induced pluripotent stem cells (iPSCs) hinders the clinical application of iPSC technology for cardiac repair strategy. Recently, we screened out nucleosome assembly protein 1-like 1 (Nap1l1), which was downregulated during the differentiation of P19CL6 cells into cardiomyocytes. Here, we attempted to study the role of Nap1l1 in cardiomyogenesis of iPSC. Nap1l1 was downregulated during the differentiation of iPSC. Knockdown of Nap1l1 dramatically enhanced the differentiation of iPSC into functional cardiomyocytes while overexpression of Nap1l1 sharply lowered the differentiation. Moreover, although Nap1l1-knockdown had little effect on endoderm differentiation, the Nap1l1 modulation significantly accelerated mesoderm development. Re-expressing Nap1l1 in Nap1l1-knockdown-iPSC rescued the effects of Nap1l1. Inducibly overexpressing Nap1l1 at early stage of differentiation greatly inhibited mesoderm induction and cardiogenesis of iPSC. However, mesoderm stem cells (Flk-1-positive cells) originated from Nap1l1-knockdown- or -overexpression-iPSC showed no difference in further cardiomyocyte differentiation compared with that of control-iPSC. Further study revealed that Nap1l1-overexpression increased γ-secretase activity and the expression of Notch intracellular domain (NICD) and downstream genes during the differentiation of iPSC. γ-Secretase inhibitor DAPT (N-[N-(3,5-difluorophenacetyl)-L-alanyl]-S-phenylglycinet-butyl ester) greatly suppressed the production of NICD and abolished the inhibitory effects of Nap1l1-overexpression on mesoderm induction and cardiogenesis. These findings demonstrate that downregulation of Nap1l1 significantly enhances mesodermal induction and subsequent cardiogenesis of murine iPSC via inhibition of γ-secretase-regulated Notch signaling, which would facilitate the application of iPSC in heart diseases. Stem Cells 2014;32:1759–1773
MyLabStocks: a web‐application to manage molecular biology materials
Authors: Chuffart Florent , Yvert Gaël 
Published: March 2014

AbstractLaboratory stocks are the hardware of research. They must be stored and managed with mimimum loss of material and information. Plasmids, oligonucleotides and strains are regularly exchanged between collaborators within and between laboratories. Managing and sharing information about every item is crucial for retrieval of reagents, for planning experiments and for reproducing past experimental results. We have developed a web‐based application to manage stocks commonly used in a molecular biology laboratory. Its functionalities include user‐defined privileges, visualization of plasmid maps directly from their sequence and the capacity to search items from fields of annotation or directly from a query sequence using BLAST. It is designed to handle records of plasmids, oligonucleotides, yeast strains, antibodies, pipettes and notebooks. Based on PHP/MySQL, it can easily be extended to handle other types of stocks and it can be installed on any server architecture. MyLabStocks is freely available from: https://forge.cbp.ens‐lyon.fr/redmine/projects/mylabstocks under an open source licence. © 2014 Laboratoire de Biologie Moleculaire de la Cellule CNRS. Yeast published by John Wiley & Sons, Ltd.
Synergistic Effect on Wettability of Mixtures of Amine Oxides, Alkylpolyglucosides, and Ethoxylated Fatty Alcohols
Authors: García Martín Juan F. , Herrera‐Márquez Otilia , Vicaria José M. , Jurado Encarnación 
Published: March 2014

AbstractThe mixture proportions of three surfactants, i.e. an alkylpolyglucoside (APG), an ethoxylated fatty alcohol, and an amine oxide (AO), were optimized by applying Response Surface Methodology in order to achieve the surfactant ratio that produces the highest wetting power. The synergistic effect of the binary samples of AO with the other surfactants was firstly verified. An improvement in this synergistic effect on wettability was found in the ternary mixture. In the experimental range analyzed, the surfactant concentration ratio that produced the highest wettability was a composition with 19.3 % APG, 30.1 % ethoxylated alcohol, and 50.6 % lauramine oxide.
Synthesis of Urethane Derivatives of Mono‐ and Diacylglycerols for Use as HPLC Standards in the Enantiomeric Separation
Authors: Tada Naoto , Fujita Honami , Ando Yasuhiro 
Published: March 2014

AbstractThis paper presents a convenient method for the preparation of reference standards for high‐performance liquid chromatography (HPLC) used in stereospecific analysis of triacyl‐sn‐glycerols via monoacylglycerol or diacylglycerol intermediates. In the analysis, these partial acylglycerols are separated into their respective positional and enantiomeric isomer classes by chiral HPLC as their 3,5‐dinitrophenylurethane derivatives or by silicic acid HPLC as their (S)‐ or (R)‐1‐(1‐naphthyl)ethyl urethane derivatives. In this study, these urethane derivative standards were synthesized by the following novel procedure: first, partial urethane derivatives of glycerol were prepared by carbamoylation of glycerol with isocyanates; secondly, the products were separated into positional isomer classes by silicic acid HPLC, and; finally, a fatty acid was added to the partial urethanes using N,N′‐dicyclohexylcarbodiimide. The identities of the resulting urethane derivatives of glycerol were verified by mass spectrometry and HPLC. This new procedure is advantageous in that standard urethane derivatives of partial acylglycerols can be synthesized from no more than 50 μg of fatty acids. This benefit is especially important in the case of rare and expensive fatty acids, such as very long chain polyunsaturated fatty acids, tetracosahexaenoic acid, and hexacosaheptaenoic acid, found in marine lipids.
International Note: What factors are associated with reading, mathematics, and science literacy of Indian adolescents? A multilevel examination
Authors: Areepattamannil Shaljan 
Published: March 2014

ABSTRACTA sample of 15‐year‐olds in India took part in the Program for International Student Assessment (PISA) for the first time in 2010. The PISA reading, mathematics, and science literacy scores of Indian adolescents were considerably lower than their counterparts in most PISA participating countries. In order to explore potential reasons for this, the present study, therefore, drawing on data from the fourth cycle of PISA and employing multilevel modeling, examined the relations of student‐ and school‐level factors to reading, mathematics, and science literacy among 4826 15‐year‐old students from 213 schools in India. Gender, metacognitive learning strategies, students' positive attitudes toward school, and students' positive perceptions of classroom climate were found to be significantly associated with Indian adolescents' performance on the PISA assessment.
Nonlinear stability of gravitationally unstable, transient, diffusive boundary layers in porous media
Authors: Tilton N. , Riaz A. 
Published: March 2014

AbstractThe linear stability of transient diffusive boundary layers in porous media has been studied extensively for its applications to carbon dioxide sequestration. The onset of nonlinear convection, however, remains understudied because the transient base state invalidates the traditional stability methods that are used for autonomous systems. We demonstrate that the onset time of nonlinear convection, $t=t_{\mathit{on}}$, can be determined from an expansion that is two orders of magnitude faster than a direct numerical simulation. Using the expansion, we explore the sensitivity of $t_{\mathit{on}}$ to the initial perturbation magnitude and wavelength, as well as the initial time at which a perturbation is initiated. We find that there is an optimal initial time and wavelength that minimize $t_{\mathit{on}}$, and we obtain analytical relationships for these parameters in terms of aquifer properties and initial perturbation magnitude. This importance of the initial perturbation time and magnitude is often overlooked in previous studies. To investigate perturbation evolution at late-times, $t>t_{\mathit{on}}$, we perform direct numerical simulations that reveal two unique features of transient diffusive boundary layers. First, when a boundary layer is perturbed with a single horizontal Fourier mode, nonlinear mechanisms generate a zero-wavenumber response whose magnitude eventually surpasses that of the fundamental mode. Second, when a boundary layer is simultaneously perturbed with many Fourier modes, the late-time perturbation magnitude is concentrated in the zero-wavenumber mode, and there is no clearly dominant, non-zero, wavenumber. These unique results are further interpreted by comparison with direct numerical simulations of Rayleigh–Bénard convection.
Collision statistics of inertial particles in two-dimensional homogeneous isotropic turbulence with an inverse cascade
Authors: Onishi Ryo , Vassilicos J. C. 
Published: March 2014

AbstractThis study investigates the collision statistics of inertial particles in inverse-cascading two-dimensional (2D) homogeneous isotropic turbulence by means of a direct numerical simulation (DNS). A collision kernel model for particles with small Stokes number ($\mathit{St}$) in 2D flows is proposed based on the model of Saffman & Turner (J. Fluid Mech., vol. 1, 1956, pp. 16–30) (ST56 model). The DNS results agree with this 2D version of the ST56 model for $\mathit{St}\lesssim 0.1$. It is then confirmed that our DNS results satisfy the 2D version of the spherical formulation of the collision kernel. The fact that the flatness factor stays around 3 in our 2D flow confirms that the present 2D turbulent flow is nearly intermittency-free. Collision statistics for $\mathit{St}= 0.1$, 0.4 and 0.6, i.e. for $\mathit{St}<1$, are obtained from the present 2D DNS and compared with those obtained from the three-dimensional (3D) DNS of Onishi et al. (J. Comput. Phys., vol. 242, 2013, pp. 809–827). We have observed that the 3D radial distribution function at contact ($g(R)$, the so-called clustering effect) decreases for $\mathit{St}= 0.4$ and 0.6 with increasing Reynolds number, while the 2D $g(R)$ does not show a significant dependence on Reynolds number. This observation supports the view that the Reynolds-number dependence of $g(R)$ observed in three dimensions is due to internal intermittency of the 3D turbulence. We have further investigated the local $\mathit{St}$, which is a function of the local flow strain rates, and proposed a plausible mechanism that can explain the Reynolds-number dependence of $g(R)$. Meanwhile, 2D stochastic simulations based on the Smoluchowski equations for $\mathit{St}\ll 1$ show that the collision growth can be predicted by the 2D ST56 model and that rare but strong events do not play a significant role in such a small-$\mathit{St}$ particle system. However, the probability density function of local $\mathit{St}$ at the sites of colliding particle pairs supports the view that powerful rare events can be important for particle growth even in the absence of internal intermittency when $\mathit{St}$ is not much smaller than unity.
Are Single-session Smoking Cessation Groups a Feasible Option for Rural Australia? – Outcomes From a Pilot Study
Authors: Gould Gillian S. , Watters Tracey 
Published: March 2014

Introduction: Single-session group smoking cessation interventions have received little attention in the literature.Aims: This study aimed to test the feasibility and outcomes of a single-session large group smoking cessation intervention in a rural area of New South Wales.Methods: Participants from a smoking cessation course (N = 42) were asked about cigarette consumption, quit attempts, and readiness and confidence to quit at registration and six months. The two-hour intervention occurred in a group setting and comprised of cognitive behaviour therapy and pharmacotherapy advice.Results: The analysis revealed a 26.2% (N = 11) quit rate based on self-report and/or carbon monoxide validation at 6 months (intention to treat). Those who quit all used pharmacotherapy: eight (73%) Nicotine Replacement Therapy (NRT); two (18%) varenicline and one (9%) bupropion with NRT. Seven people (17%) used medicines to reduce consumption of cigarettes. A paired samples t test of those still smoking showed a statistically significant decrease in the numbers of cigarettes smoked per day (p<.001).Conclusion: The quit rate of 26.2% from this large single-session smoking cessation course is comparable to that expected from groups having multiple sessions. As a pilot study, these data suggest that a multi-faceted single-session two-hour smoking cessation intervention can successfully support quit attempts in a rural location.
Oral Mycostatin as a possible alternative treatment for intractable Ménière's disease: preliminary cohort study
Authors: Leong A C , Pothier D D , Rutka J A 
Published: March 2014

AbstractBackground:The potential efficacy of antifungal agents (e.g. Mycostatin) in treating acute attacks of Ménière's disease was first suggested in 1983 but few data have been published. Oral Mycostatin has been used as second-line medical treatment for intractable Ménière's disease at our institution for many years.Objective:This preliminary cohort study investigated the role of oral Mycostatin in intractable Ménière's disease.Methods:A retrospective review of patients with intractable Ménière's disease who started oral Mycostatin treatment between 2010 and 2012 was conducted.Results:Of 256 patients presenting with vertiginous disorders, 26 had definite Ménière's disease and had not responded to standard first-line treatment. Following oral Mycostatin treatment, improvements were reported for vertigo (n = 8), aural fullness (n = 7), tinnitus (n = 3) and subjective hearing loss (n = 3). Half of those with symptom improvement persisted with oral Mycostatin for two years and continued to remain asymptomatic.Conclusion:The use of oral Mycostatin to alleviate symptoms of intractable Ménière's disease showed promising results in this case series. Mycostatin may offer a safe and useful alternative for the management of Ménière's disease for patients with chronic unremitting symptoms in whom first-line treatment options have failed.
Colonization on Pinna nobilis at a marine protected area: extent of the spread of two invasive seaweeds
Authors: Vázquez-Luis Maite , Banach-Esteve Gàlia , Álvarez Elvira , Deudero Salud 
Published: March 2014

Introduction of species is a major driver of global change and loss of biodiversity in ecosystems. The Mediterranean Sea is the most heavily invaded region in the world by introduced seaweeds. The fan mussel Pinna nobilis is the largest Mediterranean bivalve, and a protected species, present at depths from 0.5 m to 60 m. In Cabrera National Park marine protected area (MPA) (Balearic Islands, north-western Mediterranean) the population of P. nobilis is affected by the invasive seaweeds Lophocladia lallemandii and Caulerpa racemosa; however the extent of this colonization on the bivalve is unknown. Therefore, the main aims of the present study were to: (1) determine the extent of invasion of L. lallemandii and C. racemosa on the P. nobilis population; and (2) test if this invasion showed differences with depth. This is the first study assessing invasion by seaweeds on a large bivalve in a high density P. nobilis population. Pinna nobilis was distributed in all seagrass meadows surveyed within the MPA; we found a total of 872 live P. nobilis individuals, 449 and 423 of which were found at 10 and 20 m depth, respectively. High cover of L. lallemandii and low presence of C. racemosa were detected in the P. nobilis population, being quantified in 49.37% and 1.38% of the population of P. nobilis, respectively. Bathymetric differences on Lophocladia epizoism over P. nobilis has been recorded in this study; with increasing values of L. lallemandii cover index, biomass and volume at deeper depths. Pinna nobilis could be a preferential substratum for L. lallemandii in Posidonia oceanica meadows in deeper waters, acting as a stepping-stone for invasive seaweeds and facilitating the invasion throughout seagrass meadows.
Does eating family meals and having the television on during dinner correlate with overweight? A sub-study of the PRO GREENS project, looking at children from nine European countries
Authors: Roos Eva , Pajunen Tuuli , Ray Carola , Lynch Christel , Kristiansdottir Ása Gudrun , Halldorsson Thorhallur I , Thorsdottir Inga , te Velde Saskia J , Krawinkel Michael , Behrendt Isabel , de Almeida Maria Daniel Vaz , Franchini Bela , Papadaki Angeliki , Moschandreas Joanna , Ribič Cirila Hlastan , Petrova Stefka , Duleva Vesselka , Simčič Irena , Yngve Agneta 
Published: March 2014

AbstractObjectiveFamily meals have been negatively associated with overweight in children, while television (TV) viewing during meals has been associated with a poorer diet. The aim of the present study was to assess the association of eating family breakfast and dinner, and having a TV on during dinner, with overweight in nine European countries and whether these associations differed between Northern and Southern & Eastern Europe.DesignCross-sectional data. Schoolchildren reported family meals and TV viewing. BMI was based on parental reports on height and weight of their children. Cut-off points for overweight by the International Obesity Task Force were used. Logistic regressions were performed adjusted by age, gender and parental education.SettingSchools in Northern European (Sweden, the Netherlands, Iceland, Germany and Finland) and Southern & Eastern European (Portugal, Greece, Bulgaria and Slovenia) countries, participating in the PRO GREENS project.SubjectsChildren aged 10–12 years in (n 6316).ResultsIn the sample, 21 % of the children were overweight, from 35 % in Greece to 10 % in the Netherlands. Only a few associations were found between family meals and TV viewing during dinner with overweight in the nine countries. Northern European children, compared with other regions, were significantly more likely to be overweight if they had fewer family breakfasts and more often viewed TV during dinner.ConclusionsThe associations between family meals and TV viewing during dinner with overweight were few and showed significance only in Northern Europe. Differences in foods consumed during family meals and in health-related lifestyles between Northern and Southern & Eastern Europe may explain these discrepancies.
Development of a conceptually equivalent Chinese-language translation of the US Household Food Security Survey Module for Chinese immigrants to the USA
Authors: Kwan Christine ML , Napoles Anna M , Chou Jeyling , Seligman Hilary K 
Published: March 2014

AbstractObjectiveTo develop a conceptually equivalent Chinese-language translation of the eighteen-item US Household Food Security Survey Module.DesignIn the current qualitative study, we (i) highlight methodological challenges which arise in developing survey instruments that will be used to make comparisons across language groups and (ii) describe the development of a Chinese-language translation of the US Household Food Security Survey Module, called the San Francisco Chinese Food Security Module.SettingCommunity sites in San Francisco, CA, USA.SubjectsWe conducted cognitive interviews with twenty-two community members recruited from community sites hosting food pantries and with five professionals recruited from clinical settings.ResultsDevelopment of conceptually equivalent surveys can be difficult. We highlight challenges related to dialect, education, literacy (e.g. preferences for more or less formal phrasing), English words and phrases for which there is no Chinese language equivalent (e.g. ‘balanced meals’ and ‘eat less than you felt you should’) and response formats. We selected final translations to maximize: (i) consistency of the Chinese translation with the intent of the English version; (ii) clarity; and (iii) similarities in understanding across dialects and literacy levels.ConclusionsSurvey translation is essential for conducting research in many communities. The challenges encountered illustrate how literal translations can affect the conceptual equivalence of survey items across languages. Cognitive interview methods should be routinely used for survey translation when such non-equivalence is suspected, such as in surveys addressing highly culturally bound behaviours such as diet and eating behaviours. Literally translated surveys lacking conceptual equivalence may magnify or obscure important health inequalities.
A study of early complementary feeding determinants in the Republic of Ireland based on a cross-sectional analysis of the Growing Up in Ireland infant cohort
Authors: Castro Patricia Dominguez , Kearney John , Layte Richard 
Published: March 2014

AbstractObjectiveEarly complementary feeding has been shown to increase the risk of overweight, obesity and chronic diseases later in life. Poor compliance with current guidelines on complementary feeding has been reported by Irish studies. The aim of the present paper is to identify predictors of early complementary feeding in order to help health professionals target population groups in greater need of dietary intervention as well as to provide effective advice.DesignCross-sectional analysis of the national, longitudinal Growing Up in Ireland study.SettingData were derived from the first wave (2007–2008) of the Growing Up in Ireland infant cohort.SubjectsA cohort of mothers (n 11 134) from the Republic of Ireland, interviewed when their infants were 9 months of age.ResultsOf the infants, 1469 (13·5 %) had been regularly taking solids in the period between 12 and 16 weeks; this percentage increased to 47·0 % of the sample in the period between 16 and 20 weeks. Timing of formula feeding commencement, high maternal BMI and choosing a relative as the infant's minder were strongly associated with early introduction of solids both in bivariate and multivariate analysis. Those infants who started formula feeding at >4 months were 88·4% less likely to be introduced to solids early compared with those who started at <2 months (OR = 0·116; 95% CI 0·072, 0·186; P < 0·001).ConclusionsThe results demonstrate that biological, social and behavioural aspects exert an important role in infant feeding practices. These findings are relevant to the design of policies and intervention programmes aimed at educating parents.