Log in

Relevant bibliographies by topics / QSSA / Journal articles

To see the other types of publications on this topic, follow the link: QSSA.

Journal articles on the topic 'QSSA'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'QSSA.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Wu, Fangxi, Xi Luo, Lingqiang Wang, et al. "Genome-Wide Association Study Reveals the QTLs for Seed Storability in World Rice Core Collections." Plants 10, no. 4 (2021): 812. http://dx.doi.org/10.3390/plants10040812.

Full text

Abstract:

Seed storability is a main agronomically important trait to assure storage safety of grain and seeds in rice. Although many quantitative trait loci (QTLs) and associated genes for rice seed storability have been identified, the detailed genetic mechanisms of seed storability remain unclear in rice. In this study, a genome-wide association study (GWAS) was performed in 456 diverse rice core collections from the 3K rice genome. We discovered the new nine QTLs designated as qSS1-1, qSS1-2, qSS2-1, qSS3-1, qSS5-1, qSS5-2, qSS7-1, qSS8-1, and qSS11-1. According to the analysis of the new nine QTLs,

APA, Harvard, Vancouver, ISO, and other styles

2

Kotte, Ann-Kathrin, Oliver Severn, Zak Bean, Katrin Schwarz, Nigel P. Minton, and Klaus Winzer. "RRNPP-type quorum sensing affects solvent formation and sporulation in Clostridium acetobutylicum." Microbiology 166, no. 6 (2020): 579–92. http://dx.doi.org/10.1099/mic.0.000916.

Full text

Abstract:

The strictly anaerobic bacterium Clostridium acetobutylicum is well known for its ability to convert sugars into organic acids and solvents, most notably the potential biofuel butanol. However, the regulation of its fermentation metabolism, in particular the shift from acid to solvent production, remains poorly understood. The aim of this study was to investigate whether cell–cell communication plays a role in controlling the timing of this shift or the extent of solvent formation. Analysis of the available C. acetobutylicum genome sequences revealed the presence of eight putative RRNPP-type q

APA, Harvard, Vancouver, ISO, and other styles

3

Wen, He, Huifang Dai, Zhaosheng Teng, Yuxiang Yang, and Fuhai Li. "Performance Comparison of Windowed Interpolation FFT and Quasisynchronous Sampling Algorithm for Frequency Estimation." Mathematical Problems in Engineering 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/745830.

Full text

Abstract:

The DFT-based frequency estimations have inherent limitations such as spectral leakage and picket-fence effect due to asynchronous sampling. This paper focuses on comparing the windowed interpolation FFT (WIFFT) and quasisynchronous sampling algorithm (QSSA) for frequency estimation. The WIFFT uses windows to reduce spectral leakage and employs interpolation algorithm to eliminate picket-fence effect. And the QSSA utilizes quasisynchronous weighted iterations for frequency estimation. The accuracy and time complexity of WIFFT and QSSA are theoretically studied. Computer simulations of frequenc

APA, Harvard, Vancouver, ISO, and other styles

4

Boulier, François, and François Lemaire. "Differential algebra and QSSA methods in biochemistry." IFAC Proceedings Volumes 42, no. 10 (2009): 33–38. http://dx.doi.org/10.3182/20090706-3-fr-2004.00004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Sun, Qibo, Shangguang Wang, Hua Zou, and Fangchun Yang. "QSSA: A QoS-aware Service Selection Approach." International Journal of Web and Grid Services 7, no. 2 (2011): 147. http://dx.doi.org/10.1504/ijwgs.2011.040446.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Gao, Hongyuan, Yangyang Hou, Shibo Zhang, and Ming Diao. "An Efficient Approximation for Nakagami-mQuantile Function Based on Generalized Opposition-Based Quantum Salp Swarm Algorithm." Mathematical Problems in Engineering 2019 (August 14, 2019): 1–13. http://dx.doi.org/10.1155/2019/8291063.

Full text

Abstract:

With the further research in communication systems, especially in wireless communication systems, a statistical model called Nakagami-mdistribution appears to have better performance than other distributions, including Rice and Rayleigh, in explaining received faded envelopes. Therefore, the Nakagami-mquantile function plays an important role in numerical calculations and theoretical analyses for wireless communication systems. However, it is quite difficult to operate numerical calculations and theoretical analyses because Nakagami-mquantile function has no exact closed-form expression. In or

APA, Harvard, Vancouver, ISO, and other styles

7

Whitehouse, L. E., A. S. Tomlin, and M. J. Pilling. "Systematic reduction of complex tropospheric chemical mechanisms, Part I: sensitivity and time-scale analyses." Atmospheric Chemistry and Physics 4, no. 7 (2004): 2025–56. http://dx.doi.org/10.5194/acp-4-2025-2004.

Full text

Abstract:

Abstract. Explicit mechanisms describing the complex degradation pathways of atmospheric volatile organic compounds (VOCs) are important, since they allow the study of the contribution of individual VOCS to secondary pollutant formation. They are computationally expensive to solve however, since they contain large numbers of species and a wide range of time-scales causing stiffness in the resulting equation systems. This paper and the following companion paper describe the application of systematic and automated methods for reducing such complex mechanisms, whilst maintaining the accuracy of t

APA, Harvard, Vancouver, ISO, and other styles

8

Chen, Rongzhong, Chen Dong, Yin Ye, Zhenyi Chen, and Yanhua Liu. "QSSA: Quantum Evolutionary Salp Swarm Algorithm for Mechanical Design." IEEE Access 7 (2019): 145582–95. http://dx.doi.org/10.1109/access.2019.2945842.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Whitehouse, L. E., A. S. Tomlin, and M. J. Pilling. "Systematic reduction of complex tropospheric chemical mechanisms using sensitivity and time-scale analyses." Atmospheric Chemistry and Physics Discussions 4, no. 4 (2004): 3721–83. http://dx.doi.org/10.5194/acpd-4-3721-2004.

Full text

Abstract:

Abstract. Explicit mechanisms describing the complex degradation pathways of atmospheric volatile organic compounds (VOCs) are important, since they allow the study of the contribution of individual VOCS to secondary pollutant formation. They are computationally expensive to solve however, since they contain large numbers of species and a wide range of time-scales causing stiffness in the resulting equation systems. This paper and the following companion paper describe the application of systematic and automated methods for reducing such complex mechanisms, whilst maintaining the accuracy of t

APA, Harvard, Vancouver, ISO, and other styles

10

Lu, Tzyy-Chyang, and Jyh-Ching Juang. "Quantum-inspired space search algorithm (QSSA) for global numerical optimization." Applied Mathematics and Computation 218, no. 6 (2011): 2516–32. http://dx.doi.org/10.1016/j.amc.2011.07.067.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Shoji, Masakazu, Yoshio Morozumi, Hideyuki Aoki, and Takatoshi Miura. "A Reducing Method of a Detailed Reaction Mechanism Based on the QSSA Method." JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 39, no. 11 (2006): 1182–90. http://dx.doi.org/10.1252/jcej.39.1182.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Yu, Chunkan, Viatcheslav Bykov, and Ulrich Maas. "Global quasi-linearization (GQL) versus QSSA for a hydrogen–air auto-ignition problem." Physical Chemistry Chemical Physics 20, no. 16 (2018): 10770–79. http://dx.doi.org/10.1039/c7cp07213a.

Full text

Abstract:

A recently developed automatic reduction method for systems of chemical kinetics, the so-called Global Quasi-Linearization (GQL) method, has been implemented to study and reduce the dimensions of a homogeneous combustion system.

APA, Harvard, Vancouver, ISO, and other styles

13

Xia, A. G., D. V. Michelangeli та P. A. Makar. "Mechanism reduction for the formation of secondary organic aerosol for integration into a 3-dimensional regional air quality model: <i>α</i>-pinene oxidation system". Atmospheric Chemistry and Physics 9, № 13 (2009): 4341–62. http://dx.doi.org/10.5194/acp-9-4341-2009.

Full text

Abstract:

Abstract. A detailed α-pinene oxidation mechanism was reduced systematically through the successive application of five mechanism reduction techniques. The resulting reduced mechanism preserves the ozone- and organic aerosol-forming properties of the original mechanism, while using less species. The methodologies employed included a directed relation graph method with error propagation (DRGEP, which removed a large number of redundant species and reactions), principal component analysis of the rate sensitivity matrix (PCA, used to remove unnecessary reactions), the quasi-steady-state approxima

APA, Harvard, Vancouver, ISO, and other styles

14

Xia, A. G., D. V. Michelangeli та P. A. Makar. "Mechanism reduction for the formation of secondary organic aerosol for integration into a 3-dimensional regional Air Quality Model: <i>α</i>-pinene oxidation system". Atmospheric Chemistry and Physics Discussions 8, № 4 (2008): 13301–54. http://dx.doi.org/10.5194/acpd-8-13301-2008.

Full text

Abstract:

Abstract. A detailed α-pinene oxidation mechanism was reduced systematically through the successive application of five mechanism reduction techniques. The resulting reduced mechanism preserves the ozone- and organic aerosol-forming properties of the original mechanism, while using less species. The methodologies employed included a directed relation graph method with error propagation (DRGEP, which removed a large number of redundant species and reactions), principal component analysis of the rate sensitivity matrix (PCA, used to remove unnecessary reactions), the quasi-steady-state approxima

APA, Harvard, Vancouver, ISO, and other styles

15

Hughes, Kevin J., Mike Fairweather, John F. Griffiths, Richard Porter, and Alison S. Tomlin. "The application of the QSSA via reaction lumping for the reduction of complex hydrocarbon oxidation mechanisms." Proceedings of the Combustion Institute 32, no. 1 (2009): 543–51. http://dx.doi.org/10.1016/j.proci.2008.06.064.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Rebelo Pinto, Teresa, Joana Carneiro Pinto, Helena Rebelo-Pinto, and Teresa Paiva. "O sono em adolescentes portugueses: Proposta de um modelo tridimensional." Análise Psicológica 34, no. 4 (2016): 339–52. http://dx.doi.org/10.14417/ap.1221.

Full text

Abstract:

O sono é uma necessidade básica que influencia e é simultaneamente influenciada pela diversidade de atividades, papéis e contextos de vida, assumindo particular importância nos adolescentes. Apresenta-se um estudo com 400 alunos do 9º e 11º anos de escolaridade, de duas escolas da região de Lisboa, avaliados através do Questionário Sobre Sono para Adolescentes - QSSA. Os resultados quantitativos da caracterização do sono incidiram sobre hábitos, auto perceções e conhecimentos. Da exploração qualitativa dos fatores invocados por uma subamostra de 100 adolescentes como fundamento das suas auto p

APA, Harvard, Vancouver, ISO, and other styles

17

Bultinck, Patrick, Tom Kuppens, Xavier Gironés, and Ramon Carbó-Dorca. "Quantum Similarity Superposition Algorithm (QSSA): A Consistent Scheme for Molecular Alignment and Molecular Similarity Based on Quantum Chemistry." Journal of Chemical Information and Computer Sciences 43, no. 4 (2003): 1143–50. http://dx.doi.org/10.1021/ci0340153.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

TREVELYAN, P. M. J., C. ALMARCHA, and A. DE WIT. "Buoyancy-driven instabilities of miscible two-layer stratifications in porous media and Hele-Shaw cells." Journal of Fluid Mechanics 670 (January 31, 2011): 38–65. http://dx.doi.org/10.1017/s0022112010005008.

Full text

Abstract:

Buoyancy-driven instabilities of a horizontal interface between two miscible solutions in the gravity field are theoretically studied in porous media and Hele-Shaw cells (two glass plates separated by a thin gap). Beyond the classical Rayleigh–Taylor (RT) and double diffusive (DD) instabilities that can affect such two-layer stratifications right at the initial time of contact, diffusive-layer convection (DLC) as well as delayed-double diffusive (DDD) instabilities can set in at a later time when differential diffusion effects act upon the evolving density profile starting from an initial step

APA, Harvard, Vancouver, ISO, and other styles

19

Tingas, Efstathios-Al, Dimitrios J. Diamantis, and Dimitris A. Goussis. "Issues arising in the construction of QSSA mechanisms: the case of reduced n-heptane/air models for premixed flames." Combustion Theory and Modelling 22, no. 6 (2018): 1049–83. http://dx.doi.org/10.1080/13647830.2018.1470333.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Mukherjee, Debasmita, Lakshmi Narayan Guin, and Santabrata Chakravarty. "Dynamical Response of Atherosclerotic Plaque Through Mathematical Model." Biophysical Reviews and Letters 14, no. 02 (2019): 49–74. http://dx.doi.org/10.1142/s1793048019500036.

Full text

Abstract:

The present paper concerns itself with the dynamical response of the formation of atherosclerotic plaque arising from the interactions among various cellular components in arteries. An appropriate mathematical model is framed to articulate the involvement of several key cellular components like LDLs, HDLs, radicals, oxidized LDLs, chemo-attractants, etc. in terms of a large system of nonlinear ordinary differential equations. The present dynamical model bears the potential to have global stability and hence it furnishes a comprehensible essence for in silico studies on the onset of atheroscler

APA, Harvard, Vancouver, ISO, and other styles

21

Whitehouse, L. E., A. S. Tomlin, and M. J. Pilling. "Systematic reduction of complex tropospheric chemical mechanisms, Part II: Lumping using a time-scale based approach." Atmospheric Chemistry and Physics 4, no. 7 (2004): 2057–81. http://dx.doi.org/10.5194/acp-4-2057-2004.

Full text

Abstract:

Abstract. This paper presents a formal method of species lumping that can be applied automatically to intermediate compounds within detailed and complex tropospheric chemical reaction schemes. The method is based on grouping species with reference to their chemical lifetimes and reactivity structures. A method for determining the forward and reverse transformations between individual and lumped compounds is developed. Preliminary application to the Leeds Master Chemical Mechanism (MCMv2.0) has led to the removal of 734 species and 1777 reactions from the scheme, with minimal degradation of acc

APA, Harvard, Vancouver, ISO, and other styles

22

Whitehouse, L. E., A. S. Tomlin, and M. J. Pilling. "Systematic lumping of complex tropospheric chemical mechanisms using a time-scale based approach." Atmospheric Chemistry and Physics Discussions 4, no. 4 (2004): 3785–834. http://dx.doi.org/10.5194/acpd-4-3785-2004.

Full text

Abstract:

Abstract. This paper presents a formal method of species lumping that can be applied automatically to intermediate compounds within detailed and complex tropospheric chemical reaction schemes. The method is based on grouping species with reference to their chemical lifetimes and reactivity structures. A method for determining the forward and reverse transformations between individual and lumped compounds is developed. Preliminary application to the Leeds Master Chemical Mechanism (MCMv2.0) has led to the removal of 734 species and 1777 reactions from the scheme, with minimal degradation of acc

APA, Harvard, Vancouver, ISO, and other styles

23

Li, Jianzhong, Li Yuan, Wei Li, and Kaichen Zhang. "Numerical Investigation of Combustion Characteristics of a Wave Rotor Combustor Based on a Reduced Reaction Mechanism of Ethylene." International Journal of Aerospace Engineering 2018 (November 1, 2018): 1–21. http://dx.doi.org/10.1155/2018/8672760.

Full text

Abstract:

To improve simulations of the flame and pressure wave propagation process and investigate the combustion characteristics of a wave rotor combustor (WRC), direct relation graphs with error propagation (DRGEP), quasi-steady-state assumption (QSSA), and sensitivity analysis were used to establish a reduced reaction mechanism comprised of 23 species and 55 elementary reactions, based on the LLNL N-Butane mechanism. The reduced reaction mechanism of ethylene was combined with an eddy dissipation concept (EDC) model to simulate the flame propagation characteristics in a simplified WRC channel. The e

APA, Harvard, Vancouver, ISO, and other styles

24

Chakravarty, Koyel, and D. C. Dalal. "Stability analysis of drug dynamics model: A mathematical approach." International Journal of Biomathematics 12, no. 04 (2019): 1950043. http://dx.doi.org/10.1142/s1793524519500438.

Full text

Abstract:

In this paper, a mathematical model of drug release from polymeric matrix and consequent intracellular drug transport is proposed and analyzed. Modeling of drug release is done through solubilization dynamics of drug particles, diffusion of the solubilized drug through the polymeric matrix in addition to reversible dissociation/recrystallization process. The interaction between drug-receptor, drug-plasma proteins along with other intracellular endosomal events is modeled. This leads to a mixed system of partial and ordinary differential equations with associated pertinent set of initial and bo

APA, Harvard, Vancouver, ISO, and other styles

25

Zhang, Fengyuan, and Hamid Emami-Meybodi. "Instability of a Diffusive Boundary Layer beneath a Capillary Transition Zone." Fluids 3, no. 4 (2018): 85. http://dx.doi.org/10.3390/fluids3040085.

Full text

Abstract:

Natural convection induced by carbon dioxide (CO2) dissolution from a gas cap into the resident formation brine of a deep saline aquifer in the presence of a capillary transition zone is an important phenomenon that can accelerate the dissolution process, reducing the risk of CO2 leakage to the shallower formations. Majority of past investigations on the instability of the diffusive boundary layer assumed a sharp CO2–brine interface with constant CO2 concentration at the top of the aquifer, i.e., single-phase system. However, this assumption may lead to erroneous estimates of the onset of natu

APA, Harvard, Vancouver, ISO, and other styles

26

Li, Banghe, Bo Li, and Yuefeng Shen. "A much better replacement of the Michaelis–Menten equation and its application." International Journal of Biomathematics 12, no. 01 (2019): 1950008. http://dx.doi.org/10.1142/s1793524519500086.

Full text

Abstract:

Michaelis–Menten equation is a basic equation of enzyme kinetics and gives acceptable approximations of real chemical reaction processes. Analyzing the derivation of this equation yields the fact that its good performance of approximating real reaction processes is due to Michaelis–Menten curve (8). This curve is derived from Quasi-Steady-State Assumption (QSSA), which has been proved always true and called Quasi-Steady-State Law by Banghe Li et al. [Quasi-steady state laws in enzyme kinetics, J. Phys. Chem. A 112(11) (2008) 2311–2321]. Here, we found a polynomial equation with total degree of

APA, Harvard, Vancouver, ISO, and other styles

27

Konishi, Eiji. "Core-halo quasi-stationary states in the Hamiltonian mean-field model." International Journal of Modern Physics B 30, no. 12 (2016): 1630007. http://dx.doi.org/10.1142/s0217979216300073.

Full text

Abstract:

A characteristic feature of long-range interacting systems is that they become trapped in a non-equilibrium and long-lived quasi-stationary state (QSS) during the early stages of their development. We present a comprehensive review of recent studies of the core-halo structure of QSSs, in the Hamiltonian mean-field model (HMF), which is a mean-field model of mutually coupled ferromagnetic XY spins located at a point, obtained by starting from various unsteady rectangular water-bag type initial phase-space distributions. The main result exposed in this review is that the core-halo structure can

APA, Harvard, Vancouver, ISO, and other styles

28

Grace, Richard E., and Thomas J. Templin. "QSS." NASPA Journal 32, no. 1 (1994): 74–80. http://dx.doi.org/10.1080/00220973.1994.11072381.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Sharp, Faith C., and Vanessa Sperandio. "QseA Directly Activates Transcription of LEE1 in Enterohemorrhagic Escherichia coli." Infection and Immunity 75, no. 5 (2007): 2432–40. http://dx.doi.org/10.1128/iai.02003-06.

Full text

Abstract:

ABSTRACT Quorum sensing (QS) in enterohemorrhagic Escherichia coli (EHEC) regulates the expression of the locus of enterocyte effacement (LEE). The LEE contains five major operons named LEE1 through LEE5. QseA was previously shown to be activated through QS and to activate the transcription of LEE1. The LEE1 operon encodes Ler, the transcription activator of all other LEE genes, and has two promoters: a distal promoter (P1) and a proximal promoter (P2). We have previously reported that QseA acts on P1 and not P2. To identify the minimal region of LEE1 that is necessary for QseA-mediated activa

APA, Harvard, Vancouver, ISO, and other styles

30

Narlikar, Jayant V. "An Alternative Cosmology: The QSSC." Symposium - International Astronomical Union 183 (1999): 277–85. http://dx.doi.org/10.1017/s0074180900132942.

Full text

Abstract:

This review begins with a brief survey of the observational constraints on the standard big bang cosmology, pointing out that the various limits leave a very narrow window in the parameter space of plausible models. There is thus a strong case for alternative cosmologies. The rest of the review concentrates on one alternative, the quasi steady state cosmology (QSSC) and summarises the recent work on this model. This includes, the theoretical formulation and simple exact solutions of the basic equations, their relationship to observations, the stability of solutions and the toy model for unders

APA, Harvard, Vancouver, ISO, and other styles

31

Zhang, Zhiwei, Hongyuan Gao, Jingya Ma, Shihao Wang, and Helin Sun. "Blind Source Separation Based on Quantum Slime Mould Algorithm in Impulse Noise." Mathematical Problems in Engineering 2021 (July 28, 2021): 1–17. http://dx.doi.org/10.1155/2021/1496156.

Full text

Abstract:

In order to resolve engineering problems that the performance of the traditional blind source separation (BSS) methods deteriorates or even becomes invalid when the unknown source signals are interfered by impulse noise with a low signal-to-noise ratio (SNR), a more effective and robust BSS method is proposed. Based on dual-parameter variable tailing (DPVT) transformation function, moving average filtering (MAF), and median filtering (MF), a filtering system that can achieve noise suppression in an impulse noise environment is proposed, noted as MAF-DPVT-MF. A hybrid optimization objective fun

APA, Harvard, Vancouver, ISO, and other styles

32

Merinero Rodríguez, Rafael. "La agenda de investigación del turismo mediante el Análisis Cuantitativo de Redes Sociales (QSNA)." Cuadernos de Turismo, no. 36 (July 14, 2015): 269. http://dx.doi.org/10.6018/turismo.36.230991.

Full text

Abstract:

El trabajo realiza un recorrido por la literatura aparecida en los últimos años en las revistas científicas y libros que han utilizado el Análisis Cuantitativo de Redes Sociales (QSNA, en inglés) para el estudio del turismo. Se presenta de forma sistemática todas las aportaciones científicas que han usado los métodos y técnicas propias del QSNA para el análisis del turismo, lo que permitirá que cualquier investigador pueda disponer de las referencias oportunas con el objeto de poder orientar sus trabajos de investigación utilizando el QSNA. A partir del análisis de todas estas aportaciones se

APA, Harvard, Vancouver, ISO, and other styles

33

French, Jacqueline, and Gary Gronseth. "The QSS Responds." Neurology Today 7, no. 9 (2007): 3. http://dx.doi.org/10.1097/01.nt.0000280871.87421.63.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Uroz, Stéphane, Phil M. Oger, Emilie Chapelle, Marie-Thérèse Adeline, Denis Faure, and Yves Dessaux. "A Rhodococcus qsdA-Encoded Enzyme Defines a Novel Class of Large-Spectrum Quorum-Quenching Lactonases." Applied and Environmental Microbiology 74, no. 5 (2008): 1357–66. http://dx.doi.org/10.1128/aem.02014-07.

Full text

Abstract:

ABSTRACT A gene involved in N-acyl homoserine lactone (N-AHSL) degradation was identified by screening a genomic library of Rhodococcus erythropolis strain W2. This gene, named qsdA (for quorum-sensing signal degradation), encodes an N-AHSL lactonase unrelated to the two previously characterized N-AHSL-degrading enzymes, i.e., the lactonase AiiA and the amidohydrolase AiiD. QsdA is related to phosphotriesterases and constitutes the reference of a novel class of N-AHSL degradation enzymes. It confers the ability to inactivate N-AHSLs with an acyl chain ranging from C6 to C14, with or without su

APA, Harvard, Vancouver, ISO, and other styles

35

Narison, Stephan. "The value of fB from QSSR." Physics Letters B 308, no. 3-4 (1993): 365–71. http://dx.doi.org/10.1016/0370-2693(93)91299-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Narison, S. "More comments on ƒB from QSSR." Physics Letters B 285, no. 1-2 (1992): 141–44. http://dx.doi.org/10.1016/0370-2693(92)91313-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

LI, Jing, Peng XU, Jia-wu ZHOU, et al. "Molecular Mapping of Sterility QTLs qSS-3, qSS-6a and qSS-7 as Single Mendelian Factors via NIL strategy." Rice Science 18, no. 2 (2011): 110–15. http://dx.doi.org/10.1016/s1672-6308(11)60016-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Chen, Hamilton, and Vincent Reginald Narvaez. "Ultrasound-Guided Quadrilateral Space Block for the Diagnosis of Quadrilateral Syndrome." Case Reports in Orthopedics 2015 (2015): 1–4. http://dx.doi.org/10.1155/2015/378627.

Full text

Abstract:

Quadrilateral space syndrome (QSS) is a rare nerve entrapment disorder that occurs when the axillary nerve and posterior circumflex humeral artery (PCHA) become compressed in the quadrilateral space. QSS presents as vague posterolateral shoulder pain that is exacerbated upon the abduction and external rotation of the shoulder. Diagnosis of QSS is difficult because of the vague presentation of QSS. In addition, even though MRI and MR angiography can be used in QSS diagnosis, there is currently no “gold standard” diagnostic imaging studies for QSS. In this case report, we describe a novel ultras

APA, Harvard, Vancouver, ISO, and other styles

39

Sperandio, Vanessa, Caiyi C. Li, and James B. Kaper. "Quorum-Sensing Escherichia coli Regulator A: a Regulator of the LysR Family Involved in the Regulation of the Locus of Enterocyte Effacement Pathogenicity Island in Enterohemorrhagic E. coli." Infection and Immunity 70, no. 6 (2002): 3085–93. http://dx.doi.org/10.1128/iai.70.6.3085-3093.2002.

Full text

Abstract:

ABSTRACT The locus of enterocyte effacement (LEE) is a chromosomal pathogenicity island that encodes the proteins involved in the formation of the attaching and effacing lesions by enterohemorrhagic Escherichia coli (EHEC) and enteropathogenic E. coli (EPEC). The LEE comprises 41 open reading frames organized in five major operons, LEE1, LEE2, LEE3, tir (LEE5), and LEE4, which encode a type III secretion system, the intimin adhesin, the translocated intimin receptor (Tir), and other effector proteins. The first gene of LEE1 encodes the Ler regulator, which activates all the other genes within

APA, Harvard, Vancouver, ISO, and other styles

40

Karsanov, Alan Muharbekovich, Zamira Tatarbekovna Astahova, Tamerlan Kazbekovich Gogichaev, Irma Borisovna Tuaeva, and Oleg Valeryevich Remizov. "The Concept of a Single Territorial Approach to Improving the Quality and Safety of Medical Activities on the Example of the Republic of North Ossetia – Alania." Medical Technologies. Assessment and Choice (Медицинские технологии. Оценка и выбор), no. 2 (36) (July 29, 2019): 35–41. http://dx.doi.org/10.31556/2219-0678.2019.36.2.035-041.

Full text

Abstract:

The concept of a unified territorial approach to improving the quality and safety of medical activities (QSMA) in the Republic of North Ossetia – Alania through the implementation of the «Quality Management and Safety Program of Medical Activities» (Program) and the creation of the «Road Map» is disclosed in present article. The main leitmotif of it is to consistently increase the information-legal, educational-motivational, clinical, control-administrative and organizational components of a systematic approach to improving QSMA in all medical institutions (MI) of the region. The program is de

APA, Harvard, Vancouver, ISO, and other styles

41

Kherouf, Soumaya, Nabil Bouarra, Amel Bouakkadia, and Djelloul Messadi. "Modeling of linear and nonlinear quantitative structure property relationships of the aqueous solubility of phenol derivatives." Journal of the Serbian Chemical Society 84, no. 6 (2019): 575–90. http://dx.doi.org/10.2298/jsc180820016k.

Full text

Abstract:

Quantitative structure?solubility relationships (QSSR) are considered as a type of Quantitative structure?property relationship (QSPR) study in which aqueous solubility of chemicals are related to chemical structure. In the present work, multiple linear regression (MLR) and artificial neural network (ANN) techniques were used for QSSR studies of the water solubility of 68 phenols (phenol and its derivatives) based on molecular descriptors calculated from the optimized 3D structures. By applying missing value, zero and multicollinearity tests with a cutoff value of 0.95, and a genetic algorithm

APA, Harvard, Vancouver, ISO, and other styles

42

Araújo, Marina Campos, Daniele Mendonça Ferreira, and Rosangela Alves Pereira. "Reprodutibilidade de questionário semiquantitativo de freqüência alimentar elaborado para adolescentes da Região Metropolitana do Rio de Janeiro, Brasil." Cadernos de Saúde Pública 24, no. 12 (2008): 2775–86. http://dx.doi.org/10.1590/s0102-311x2008001200006.

Full text

Abstract:

A reprodutibilidade de questionário semiquantitativo de freqüência alimentar (QSFA) para adolescentes do Rio de Janeiro, Brasil, foi analisada entre 108 adolescentes. O intervalo médio entre as duas aplicações do QSFA foi de vinte dias. A lista de alimentos e as porções de referência do QSFA basearam-se em dados de registros alimentares de 430 adolescentes. Estimaram-se coeficientes de correlação intraclasse para itens alimentares e coeficientes de correlação de Pearson para nutrientes. A concordância da classificação em quartis para nutrientes foi estimada pelo kappa ponderado. O método de Bl

APA, Harvard, Vancouver, ISO, and other styles

43

Russell, Regan M., Faith C. Sharp, David A. Rasko, and Vanessa Sperandio. "QseA and GrlR/GrlA Regulation of the Locus of Enterocyte Effacement Genes in Enterohemorrhagic Escherichia coli." Journal of Bacteriology 189, no. 14 (2007): 5387–92. http://dx.doi.org/10.1128/jb.00553-07.

Full text

Abstract:

ABSTRACT Transcription of the locus of enterocyte effacement (LEE) genes in enterohemorrhagic Escherichia coli (EHEC) is regulated by the LEE-encoded Ler and GrlR/GrlA proteins as well as the non-LEE-encoded regulator QseA. This work demonstrates that GrlR/GrlA activate LEE2 transcription in a Ler-independent fashion, whereas transcription of grlRA is activated by QseA in both Ler-dependent and -independent manners.

APA, Harvard, Vancouver, ISO, and other styles

44

Jardak, Mohamed, and Olivier Talagrand. "Ensemble variational assimilation as a probabilistic estimator – Part 2: The fully non-linear case." Nonlinear Processes in Geophysics 25, no. 3 (2018): 589–604. http://dx.doi.org/10.5194/npg-25-589-2018.

Full text

Abstract:

Abstract. The method of ensemble variational assimilation (EnsVAR), also known as ensemble of data assimilations (EDA), is implemented in fully non-linear conditions on the Lorenz-96 chaotic 40-parameter model. In the case of strong-constraint assimilation, it requires association with the method of quasi-static variational assimilation (QSVA). It then produces ensembles which possess as much reliability and resolution as in the linear case, and its performance is at least as good as that of ensemble Kalman filter (EnKF) and particle filter (PF). On the other hand, ensembles consisting of solu

APA, Harvard, Vancouver, ISO, and other styles

45

Yu, Zhi Xiang, Yan Jun Yan, and Hao Wu. "Quasi-Steady Marching-on in Time Approximation Technique of Numerical Simulation of Wind Pressures on Building." Applied Mechanics and Materials 105-107 (September 2011): 576–82. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.576.

Full text

Abstract:

Abstract. In order to improve the convergence of nonlinear simulation of wind pressure on buildings by turbulence theory pattern, QSMA technique is proposed based on full implicit marching-on in time method in CFX. During marching-on in time, the unit time step and non-convergence tolerance test are employed to approximate the steady state solution in this technique. Comparing with the traditional method, the proposed technique can reduce the restriction for time step and requirement for the target tolerance significantly. It is mathematically proved that the time discretization scheme is stab

APA, Harvard, Vancouver, ISO, and other styles

46

Lian, Jonathan K. M., and Florence Y. Y. Ling. "The influence of personal characteristics on quantity surveyors’ job satisfaction." Built Environment Project and Asset Management 8, no. 2 (2018): 183–93. http://dx.doi.org/10.1108/bepam-12-2017-0117.

Full text

Abstract:

PurposeThe purpose of this paper is to investigate the job satisfaction level of quantity surveyors (QSs); identify the personal characteristics that influence their job satisfaction; and provide recommendations to employers on how to enhance job satisfaction of QSs with different personal characteristics.Design/methodology/approachData were collected via a self-administered questionnaire to QSs in Singapore.FindingsQSs feel that they have significantly high passion for the job, are significantly satisfied with task variety and are treated fairly. However, they are significantly dissatisfied w

APA, Harvard, Vancouver, ISO, and other styles

47

WANG, CHUNMING, CHENGSONG ZHU, HUQU ZHAI, and JIANMIN WAN. "Mapping segregation distortion loci and quantitative trait loci for spikelet sterility in rice (Oryza sativa L.)." Genetical Research 86, no. 2 (2005): 97–106. http://dx.doi.org/10.1017/s0016672305007779.

Full text

Abstract:

Markers with segregation ratio distortion are commonly observed in data sets used for quantitative trait locus (QTL) mapping. In this study, a multipoint method of maximum likelihood (ML) was newly developed to estimate the positions and effects of the segregation distortion loci (SDLs) in two F2 populations of rice (Oryza sativa L.), i.e. Taichung65/Bhadua (TB; japonica–indica cross) and CPSLO17/W207-2 (CW; japonica–japonica). Of the four parents, W207-2 and Bhadua were found to be spikelet semi-sterile and stably inherited through selfing, and spikelet fertility segregated in the two populat

APA, Harvard, Vancouver, ISO, and other styles

48

Grant, D. A., C. Franzini, J. Wild, and A. M. Walker. "Continuous measurement of blood flow in the superior sagittal sinus of the lamb." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 269, no. 2 (1995): R274—R279. http://dx.doi.org/10.1152/ajpregu.1995.269.2.r274.

Full text

Abstract:

We assessed the validity of recording blood flow in the superior sagittal sinus (Qss) as a measure of cerebral blood flow (CBF). While anesthetized, 10 lambs were instrumented with a transit-time ultrasonic flow probe around the superior sagittal sinus to measure Qss, electrodes to assess sleep state, catheters to measure cerebral perfusion pressure (Pcp), and an occlusive cuff around the common brachiocephalic artery to vary blood pressure. After 72 h recovery, lambs were studied during spontaneous sleep-wake cycles to establish 1) the normal range of Qss and 2) the response rate of Qss to ra

APA, Harvard, Vancouver, ISO, and other styles

49

Hooi, Doreen S. W., Barrie W. Bycroft, Siri Ram Chhabra, Paul Williams, and David I. Pritchard. "Differential Immune Modulatory Activity of Pseudomonas aeruginosa Quorum-Sensing Signal Molecules." Infection and Immunity 72, no. 11 (2004): 6463–70. http://dx.doi.org/10.1128/iai.72.11.6463-6470.2004.

Full text

Abstract:

ABSTRACT Pseudomonas aeruginosa releases a spectrum of well-regulated virulence factors, controlled by intercellular communication (quorum sensing) and mediated through the production of small diffusible quorum-sensing signal molecules (QSSM). We hypothesize that QSSM may in fact serve a dual purpose, also allowing bacterial colonization via their intrinsic immune-modulatory capacity. One class of signal molecule, the N-acylhomoserine lactones, has pleiotropic effects on eukaryotic cells, particularly those involved in host immunity. In the present study, we have determined the comparative eff

APA, Harvard, Vancouver, ISO, and other styles

50

Bali, Raj. "The quasi-steady-state cosmology in a radiation-dominated phase." Modern Physics Letters A 34, no. 32 (2019): 1950262. http://dx.doi.org/10.1142/s0217732319502626.

Full text

Abstract:

Analytical solutions for radiation-dominated phase of Quasi-Steady-State Cosmology (QSSC) in Friedmann–Robertson–Walker models are obtained. We find that matter density is positive in all the cases [Formula: see text]. The nature of Hubble parameter (H) in [Formula: see text] is discussed. The deceleration parameter [Formula: see text] is marginally less than zero indicating accelerating universe. The scale factor [Formula: see text] is graphically shown with time. The model represents oscillating universe between the above-mentioned limits. Because of the bounce in QSSC, the maximum density p

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!