Saturday, December 29, 2012

Tuesday, October 30, 2012

RETRACTION: “Homotopy perturbation method to obtain exact special solutions with solitary patterns for Boussinesq-like B(m,n) equations with fully nonlinear dispersion”

[J. Math. Phys. 50, 023510 (2009)] 

Ahmet Yıldırım

Department of Mathematics, Science Faculty, Ege University, 35100 Bornova-İzmir, Turkey

(Received 15 August 2012; accepted 17 August 2012; published online 20 September 2012)
The Editor wishes to retract the article1 because extensive passages in it, including results claimed to be new, are identical to material in a previously published paper by Yonggui Zhu.2 The author has not agreed to this retraction.

Monday, July 30, 2012

Letter of retraction. Diagnostic and prognostic validity of Golgi protein 73 in hepatocellular carcinoma.

Department of Gastroenterology, School of Medicine, Ankara University, Ankara, Turkey.
We regret to inform you that the criticism raised by the Editorial Board is correct concerning the similarity between some parts of the texts present in our article published in Digestion [2011; 83: 83–88], and the papers in the Journal of Hepatology [2005; 43: 1007–1012] and in Hepatology [2009; 49: 1421–1423], although the research data are completely independent.
We apologize for this unfortunate error, which was established during the writing process of the manuscript by the author Harun Erdal. Although the final version of the submitted paper had been examined by all authors, they failed to recognize the ‘transferred parts’ of the papers in the Journal of Hepatology [2005; 43: 1007–1012] and in Hepatology [2009; 49: 1421–1423]. Thus, for the sake of scientific clarity and based on the above-mentioned facts, we prefer to retract our paper Diagnostic and Prognostic Validity of Golgi Protein 73 in Hepatocellular Carcinoma. Digestion 2011; 83: 83–88 (DOI:10.1159/000320379).
The plagiarized paper from the Journal of Hepatology was this one: “GP73, a resident Golgi glycoprotein, is a novel serum marker for hepatocellular carcinoma;” the one from Hepatology was an editorial: “Golgi protein 73 as a biomarker of hepatocellular cancer: Development of a quantitative serum assay and expression studies in hepatic and extrahepatic malignancies.”

Thursday, May 31, 2012

RETRACTION: Push-out bond strengths of two fiber post types bonded with different dentin bonding agents

Retraction: Topcu FT, Erdemir U, Sahinkesen G, Mumcu E, Yildiz E and Uslan I. Push-out bond strengths of two fiber post types bonded with different dentin bonding agents, J Biomed Mater Res Part B 2010;93B(2):359–366.
Vol. 100B, Issue 5, 1458, Article first published online: 15 MAY 2012


Abstract
The following article from Journal of Biomedical Materials Research Part B: Applied Biomaterials, “Push-out bond strengths of two fiber post types bonded with different dentin bonding agents” by Fulya Toksoy Topcu, Ugur Erdemir, Gunes Sahinkesen, Emre Mumcu, Esra Yildiz, and Ibrahim Uslan, published online on January 20, 2010, in Wiley Online Library (www.wiley onlinelibrary.com ), DOI: 10.1002/jbm.b.31590, and in Volume 93(2), pp. 359–366, has been retracted by agreement between the authors, the journal Editor-in-Chief, Jeremy L. Gilbert, and Wiley Periodicals, Inc.
While the hypothesis, materials and methods, and results of this work have not been called into question, the paper contained unattributed overlap with Akgungor G, Akkayan B. Influence of dentin bonding agents and polymerization modes on the bond strength between translucent fiber posts and three dentin regions within a post space. J Prosthet Dent. 2006 May;95(5):368–378.
This error was not identified by the authors prior to publication and does not have a direct impact on the merits of the experimental work described.

Monday, March 26, 2012

Retraction notice to “A genetic algorithm approach to determine the sample size for control charts with variables and attributes” [Expert Systems with Applications 36 (5) (2009) 8719–8734]

Istanbul Technical University, Department of Industrial Engineering, 34367 Maçka, Istanbul, Turkey, Available online 25 November 2011.

Expert Systems with Applications, Volume 36, Issue 5, July 2009, Pages 8719-8734 PDF (1496 K)
This article has been retracted at the request of the Editor-in-Chief.
Reason: This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).
This article has been retracted at the request of the editor as the author has re-used part of a paper that had already appeared in Inf. Sci., 179 (2009) 1552–1566, doi: 10.1016/j.ins.2008.09.024. One of the conditions of submission of a paper for publication is that authors declare explicitly that their work is original and has not appeared in a publication elsewhere. Re-use of any data or text should be appropriately cited. Although the author did cite their previously published work, various passages taken from the previous work were not appropriately quoted and several tables and figures were re-used. Apologies are offered to readers of the journal that this was not detected during the submission process.