Titled Paper Research Articles

Retraction: Beltaïef et al. An expeditious synthesis of [1,2]isoxazolidin-5-ones and [1,2]oxazin-6-ones from functional allyl bromide derivatives. Molecules 2010, 15, 4094-4101.

We have been made aware that the figures, tables, compounds and experimental data reported in the title paper [1] are duplicated in another publication by the same authors [2]. [...].

Comments on “Crystal growth, spectral, optical, and thermal characterization of glycyl-l-alanine hydrochloride (GLAH) single crystal”

The authors of the title paper (J Therm Anal Calorim 2012,110:873–878) report to have grown a dipeptide hydrochloride crystal namely glycyl-l-alanine hydrochloride by the slow evaporation of an aqueous solution containing stoichiometric amounts of l-alanine and glycine and an excess of hydrochloric acid. In this letter, we prove that no such dipeptide hydrochloride can be crystallized simply by mixing two amino acids in aqueous hydrochloric acid.

Comment on the paper: “Crystal growth and spectroscopic characterization of Aloevera amino acid added lithium sulfate monohydrate: A non-linear optical crystal”

The title paper (Manimekalai et al., 2014) reports a slow evaporation solution growth of a so called ‘Aloevera amino acid added lithium sulfate monohydrate’ (AALSMH) crystal. In this communication, many points of criticism, concerning the crystal growth, NMR spectrum and X-ray powder pattern of this so called AALSMH nonlinear optical crystal are highlighted.

Comments on the paper: ‘Studies on structural, thermal and optical properties of novel NLO crystal bis l-glutamine sodium nitrate’

The title paper by Hanumantharao and Kalainathan [Materials Letters, 74, (2012), 74–77] reports on the crystal growth of a so called nonlinear optical (NLO) crystal bis l-glutamine sodium nitrate (1), and its luminescence, NLO studies. Many points of criticism, concerning the crystal growth and reported experimental data, are highlighted in this comment.

Correction to "Two-Way AF Relaying in the Presence of Co-Channel Interference" [Aug 13 3156-3169

Two closed-form expressions for the end-to-end cumulative distribution function (CDF) and outage probability of two-way interference-limited amplify-and-forward (AF) relaying were recently presented in Equations (19) and (24) in the above titled paper (ibid., vol. 61, no. 8 pp. 3156-3169, Aug. 2013). However, the expressions contain a notational error. A correction is presented here.

Correction to “Closed-Form Rational Approximations of Fractional, Analog and Digital Differentiators/Integrators”

In the above titled paper (ibid., vol. 3, no. 3, pp. 322-329, Sep. 2013), equations (17a) and (17b) should have appeared as presented here.

Correction to “Error Analysis of Bistatic SAR Imaging and Stereoscopy Bistatic SAR” [Aug 13 4518-4543

In the above titled paper (ibid., vol. 51, no. 8, pp. 4518-4543, Aug. 2013), some important details concerning the used data, experimental area, and cooperation partner are missing by accident. The details are presented here.

Comment on “Molecular Structure analysis and Spectroscopic Characterization of Carbimazole with experimental (FT-IR, FT-Raman and UV–Vis) techniques and quantum chemical calculations” [J. Mol. Struct. 1052 (2013) 38–49

The title paper [1] reports the analysis of the vibrational spectra (infrared and Raman) of solid carbimazole based on the computed molecular structure for a rather unusual conformer. The optimized structure does agree neither with the reported crystallographic data nor with previous vibrational studies omitted in [1]. Here, after a careful analysis of the conformational space, the proper molecular structure of carbimazole has been calculated and the vibrational spectra have been analyzed. These results are in agreement with the available experimental data.

Comment on the paper “Synthesis, growth, structural, spectral, thermal, chemical etching, linear and nonlinear optical and mechanical studies of an organic single crystal 4-Chloro 4-Nitrostilbene (CONS): A potential NLO material” by P.M. Dinakaran, S. Kalainathan [Spectrochim. Acta A 111 (2013) 123–130

We argue that (trans)-4-chloro-4′-nitrostilbene is not a new organic nonlinear optical material as claimed by Dinakaran and Kalainathan [P.M. Dinakaran, S. Kalainathan, Synthesis, growth, structural, spectral, thermal, chemical etching, linear and nonlinear optical and mechanical studies of an organic single crystal 4-Chloro 4-Nitrostilbene (CONS): a potential NLO material, Spectrochim. Acta A 111 (2013) 123–130], but instead a well-known compound whose synthesis, spectral data, single crystal structure and second harmonic generation (SHG) efficiency are well documented in the literature. The title paper is completely erroneous.

Errata to the paper "A New Queueing Model for QoS Analysis of IEEE 802.11 DCF with Finite Buffer and Load" [Aug 10 2664-2675

The authors of the above titled paper (ibid., vol. 9, no. 8, pp. 2664-2675, Aug. 2010), have become aware that several of the equations in that paper were presented with errors. In this brief, we provide correct equations. The implementation of the model in the original paper was in accordance with the correct equations, so the implementation results presented in Section V. Performance Analysis are still valid.

Corrections to “Evaluations on AC Electrical Characteristics of No-Insulation Coil for Power Devices” [Jun 13 4700604

In the above titled paper (ibid., vol. 23, no. 3, p. 4700604, Jun. 2013), there are errors within some of the texts and figures. The author has corrected these here.

Corrections to “Hash Property and Coding Theorems for Sparse Matrices and Maximum-Likelihood Coding” [May 10 2143-2167

There is a flaw in the statement of Lemma 5 in the above titled paper (ibid., vol. 56, no. 5, pp. 2143-2167, May 2010), which is used in the proof of Ths. 4, 6, and 7 in the same paper. Revisions are presented here.

Corrections to “Application of Multi-Physics Computation on Design of a Superconducting Radio-Frequency Cavity” [Jun 13 3500405

In the above titled paper (ibid., vol. 23, no. 3, pt. 2, p. 3500405, Jun. 2013), Figs. 3 and 7 were inadvertently replaced with incorrect graphics. The corrected figures are presented here.

Corrections to “Angle-Dependent U(I) Measurements of HTS Coated Conductors” [Jun 13 8000604

In the above titled paper (ibid., vol. 23, no. 3, pt. 3, p. 8000604, Jun. 2013), there was an error in (1) wherein the superscript was incorrect. The corrected equation is presented here.

RETRACTED: Al-Salahi et al. Cytotoxicity and Anti-Inflammatory Activity of Methylsulfanyl-Triazoloquinazolines. Molecules 2013, 18, 1434–1446

We have been made aware of the fact that a large proportion of the Introduction section and corresponding references of the title paper [1] had been copied verbatim from an earlier paper by Hamdy and Gamal-Eldeen [2], and further, during our investigation it has also come to light that most of the text in question had been lifted unchanged from an even earlier review paper by a different group [3]. The authors have been contacted, these facts confirmed, and Dr. Amira M. Gamal-Eldeen has been identified as the person responsible for contributing that part of the paper. As a member of the Committee on Publication Ethics (COPE), MPDI takes very seriously the responsibility to enforce a rigorous peer-review process together with strict ethical policies and standards to ensure the addition of high quality scientific works to the field of scholarly publication. In addition to an infringement of the Elsevier and American Association for Cancer Research copyright on the previous publications, this is also a clear violation of our policy to only publish new, previously unpublished material, so this paper is declared retracted and shall be marked accordingly for the scientific record. We cannot comment on any of the scientific data contained in the Molecules paper, which to the best of our knowledge is original. We would like to apologize to our readership on behalf of the Molecules editorial team for the fact this event went undetected during the peer-review and pre-publication processing of the paper and for any inconvenience caused by this event.

Corrections to “Compressive MUSIC: Revisiting the Link Between Compressive Sensing and Array Signal Processing” [Jan 12 278-301

There are a few corrections for the above titled paper (IEEE Trans. Inf. Theory, vol. 58, no. 1, pp. 278-301, Jan. 2012). They are presented here.

Corrections to “Surface Susceptibility Bianisotropic Matrix Model for Periodic Metasurfaces of Uniaxially Mono-Anisotropic Scatterers Under Oblique TE-Wave Incidence” [Dec 12 5753-5767

In the above titled paper (ibid., vol. 60, no. 12, pp. 5753-5767, Dec. 2012), the implementation of the retrieval algorithm introduced in [2], [3] (therein numbered as [18, [22]) was incorrect. The corrected results are presented here.

Corrections to “Switching Control Technique of Phase-Shift Controlled Full-Bridge Converter to Improve Efficiency Under Light Load and Standby Conditions Without Additional Auxiliary Components” [Apr 10 1001-1012

This correspondence is to correct the errors in (31) and (32) in the above titled paper (ibid., vol. 25, no. 4, pp. 1001-1012, Apr. 2010).

Comment on the paper: “Spectroscopic and computational study of the major oxidation products formed during the reaction of two quercetin conformers with a free radical”

The title paper reports a study on the structural elucidation by spectroscopic and computational methods of the products obtained from the reaction of two conformers of quercetin with the 2,2-diphenyl-1-picrylhydrazyl radical (DPPH•). Many points of criticism, concerning both theoretical principles and experimental data, are highlighted in the present communication.

Title Paper: Natural computing: A problem solving paradigm with granular information processing

Natural computing, inspired by biological course of action, is an interdisciplinary field that formalizes processes observed in living organisms to design computational methods for solving complex problems, or designing artificial systems with more natural behaviour. Based on the tasks abstracted from natural phenomena, such as brain modelling, self-organization, self-repetition, self evaluation, Darwinian survival, granulation and perception, nature serves as a source of inspiration for the development of computational tools or systems that are used for solving complex problems. Nature inspired main computing paradigms used for such development include artificial neural networks, fuzzy logic, rough sets, evolutionary algorithms, fractal geometry, DNA computing, artificial life and granular or perception-based computing. Information granulation in granular computing is an inherent characteristic of human thinking and reasoning process performed in everyday life. The present article provides an overview of the significance of natural computing with respect to the granulation-based information processing models, such as neural networks, fuzzy sets and rough sets, and their hybridization. We emphasize on the biological motivation, design principles, application areas, open research problems and challenging issues of these models.