bluuebunny/crossref_metadata_2025_split huggingface dataset:
Combining a chaos system with an Arnold cat map for a secure authentication scheme in wireless communication networks
Authors: Chen Young-Long , Cheng Chung-Ming 
Published: March 2014

Purpose
– Wu et al.'s scheme has a security problem that is related to anonymity: attackers can determine by interception the identity of a legal user. This paper aims to propose a new secure authentication which combines a chaos system with an Arnold cat map. The scheme improves upon that of the Wu et al.'s scheme. The scheme proposed herein provides for full anonymity and improves the security of authentication messages for wireless communications.

Design/methodology/approach
– A novel scheme that integrates a chaos sequence is used with an Arnold cat map for authentication messages. Authentication messages are shuffled using an Arnold cat map to improve the security of authentication in wireless communications. An analytic approach based on a chaos sequence with an Arnold cat map is developed to secure authentication. The proposed scheme is presented in this study to overcome the inherent drawbacks of existing designs.

Findings
– The integrated scheme involves two steps. First, a chaos map is used to generate a set of chaos sequences that is added to the authentication messages. Second, the authentication messages are shuffled using an Arnold cat map. The main feature of the proposed design is such that the chaos systems are sensitive to the initial values of conditions. Sensitivity will lead to long-term behavior unpredictability to reflect the non-linear dynamic systems. Furthermore, to increase the complexity of the authentication message, the authors also use an Arnold cat map.

Originality/value
– The proposed scheme provides functions that include full anonymity properties, protection of the real identity of the user, one-time password properties, timestamp benefits and sufficient complexity of the password. The analysis shows that the proposed scheme exhibits the advantages of the chaos system and is more secure than previous schemes. Notably, the proposed scheme is effective for wireless communications.
Media discourse in a hyper connected society: a comparison between media frame and Twitter discourse during media strike
Authors: Eun Cho Seong , Shin Dong-Hee 
Published: March 2014

Purpose
– This study aims to examine the impact of news frames associated with traditional media and with Twitter discourse on social issues.

Design/methodology/approach
– Using semantic network analysis, it identifies the role of new alternative channels as well as discussing ways of understanding and consuming news content in the changing media environment. Additionally, it focuses on the dominant Twitter communicators who rank high in betweenness centrality.

Findings
– The results confirmed that traditional news media tend to superficially describe main events and media strikes without comment. They tended to consciously or unconsciously favor media corporations by engendering anxiety and conflict or by restraining reports on the rationales of the strike. Twitter discourse, on the contrary, positively represents the striker's arguments and frequently reveals support of the strike.

Research limitations/implications
– The data set of this study was specialized, not generalized. However, the findings extend literature relating to the role of journalism and alternative channel. For example, this study indicated that the change of media environment has reinforced partiality of news, including both traditional and alternative channels.

Practical implications
– The findings imply that the advent of new media does not purely represent a laymen's voice and rather tends to strengthen the partiality of media, including both traditional and new media, beyond selective exposure on content of the receiver.

Originality/value
– By clarifying the influence of alternative channels, this study suggests the counterpart of traditional journalism in the near future.
Impacts of mobile termination rates on retail prices: the implication for regulators
Authors: Kongaut Chatchai , Bohlin Erik 
Published: March 2014

Purpose
– There are only a limited number of empirical analyses on the impacts of MTRs. According to the data from 2006-2011 by the European Regulators Group (ERG), many countries have continuously reduced their MTRs. This paper therefore aims to enrich the empirical analysis of the impacts of MTRs according to EC policy on retail prices.

Design/methodology/approach
– This paper applies the one-step generalised method of moments (GMM) approach to dynamic panel data.

Findings
– The results support the hypothesis that lower MTRs will reduce consumer retail prices, which is consistent with the EC framework. It is therefore recommended that regulators in the calling party network pays (CPNP) regime reduce MTRs to at least the same level as the operators' cost to raise overall social welfare, especially consumer welfare. However, the approach by each country can differ depending on its situation.

Originality/value
– This study supports the idea that it is appropriate for the EC to regulate MTRs by reducing the rates to at least the same level as the efficient operators' cost, and other regulators with a calling party network pays regime from other regions could also follow this strategy.
Corporate sustainability discourses in a Brazilian business magazine
Authors: Franca Barros Denise , Felipe Rammelt Sauerbronn Joao , Mello da Costa Alessandra 
Published: March 2014

Purpose– This paper seeks to explore corporate social responsibility (CSR) in Brazil through the “evolution” of the sustainability concept in one of the country's leading specialist business publications – the Exame Magazine. The idea is to understand how Exame portrays sustainable development and corporate sustainability in its Sustainable Corporation Guide.Design/methodology/approach– The authors collected material covering five years of the Exame Sustainable Corporation Guide, from 2005 to 2009. The data were analyzed using discourse analysis.Findings– The authors consider that the “evolution” promoted in this particular business media discourse on CSR and sustainability assumes, and stands for the economically dominant paradigm. In this sense, it cannot be viewed as an alternative that can realistically protect local environments. Despite the idea of a neutral journalistic approach, the concerns depicted in the publication still rely on profits and the chase for business opportunities. The authors also discuss to what extent this particular publication supports a specific hegemonic discourse. The different sustainability indexes adopted only reproduce practices that are desired and that align with the realities of the so-called developed nations.Research limitations/implications– The paper focuses on what kind of sustainability discourse is propagated by the business media, and more specifically, by a well-known Guide published by a popular Brazilian business magazine. Through this method of diffusion, a specific kind of CSR and sustainability are drawn up that support the capitalist business model. This analysis can raise issues, such as the existence of a “dark side” of sustainability. Further investigation of the diffusion of the CSR and sustainability relationship in business media discourse, as well as of the uncritical adoption of western CSR models, might invigorate the discussion and provide valuable insights.Originality/value– There is a distinct lack of studies on sustainability and CSR in emergent economies. Such initiatives can be developed in different ways because emergent countries' contexts may differ. Since Brazil is currently an important player in the economic and political arenas, understanding how the notion of sustainability is being discussed in the Brazilian business media can lead to important implications for corporate practices and organizational relationships with stakeholders, both internally as well as externally.
Current practice in nutrition diagnosis and intervention for the management of Parkinson's disease in Australia and Canada
Authors: Sheard Jamie M. , Ash Susan 
Published: March 2014

AbstractAimTo document current practice by dietitians in Australia and Canada in the nutrition management of Parkinson's disease. This will help identify priority areas for review and development of practice guidelines and direct future research.MethodsCurrent practice in the phases of the Nutrition Care Plan was captured using an online survey distributed to Dietitians Association of Australia members and Practice‐Based Evidence in Nutrition subscribers through their email newsletters. The results of the diagnosis, intervention and monitoring phases are presented here.ResultsEighty‐four dietitians responded. There was consistency in practice for nutrition issues that are encountered in other populations, such as malnutrition and constipation. There was more variation in practice in the nutrition issues that are more specific to Parkinson's disease, such as nutrition and meal interactions with medication. A lack of awareness of emerging treatments, such as deep brain stimulation surgery, appears to exist in the responding dietitians.ConclusionsThe variation in practice that was present for the nutrition issues specific to Parkinson's disease may reflect the lack of quality evidence and subsequently evidence‐based guidelines in these areas. Work to provide background information about treatment options and to translate current evidence for the nutrition issues that are specific to Parkinson's disease into practice recommendations should be completed.
Review article: genetic factors that modify the outcome of viral hepatitis
Authors: Stättermayer A. F. , Scherzer T. , Beinhardt S. , Rutter K. , Hofer H. , Ferenci P. 
Published: March 2014

SummaryBackgroundGenetic factors can play an important role for treatment response and disease progression in chronic viral hepatitis.AimTo review the influence of host genetic factors on the clinical course as well as on treatment response in patients with viral hepatitis.MethodsReview of the literature.ResultsA landmark genome‐wide association study (GWAS) identified polymorphisms in the IL28B gene on chromosome 19 (19q13.13) associated with response to therapy with pegylated interferon‐α (PEG‐IFN) and ribavirin (RBV) and spontaneous viral clearance in acute hepatitis C. Furthermore, IL28B genotype is associated with changes of lipid metabolism and insulin resistance. A further GWAS demonstrated that ITPA genetic variants protect HCV genotype 1 patients from RBV‐induced anaemia. Another polymorphism in the patatin‐like phospholipase domain containing 3 (PNPLA3) is associated with hepatic steatosis. Difficult‐to‐treat hepatitis C patients homozygous for GG had an up to five‐fold lower chance of viral clearance on PEG/RBV than non‐GG patients.In chronic hepatitis B patients treated with PEG‐IFN several retrospective analyses of IL28B rs12980275 and rs12979860 genotypes yielded conflicting results which can be explained by the heterogeneity between the study populations. Some variants of the HLA‐DP locus (HLA‐DPA1 A allele and HLA‐DPB1) protect against progression of chronic hepatitis B infection.ConclusionsThe determination of IL28B polymorphisms may be useful to individualise treatment options when using PEG/RBV based therapies for chronic hepatitis C infection. In contrast, so far identified genetic factors play only a minor role in chronic hepatitis B infection.
Impact of renal surgery for cortical neoplasms on lipid metabolism
Authors: Bagrodia Aditya , Kopp Ryan P. , Mehrazin Reza , Lee Hak J. , Liss Michael A. , Jabaji Ramzi , Kane Christopher J. , Wake Robert W. , Patterson Anthony L. , Wan Jim Y. , Derweesh Ithaar H. 
Published: March 2014

ObjectiveTo examine the incidence of and risk factors for development of hyperlipidaemia in patients undergoing radical nephrectomy (RN) or partial nephrectomy (PN) for renal cortical neoplasms, as hyperlipidaemia is a major source of morbidity in chronic kidney disease (CKD).Patients and MethodsWe conducted a two‐centre retrospective analysis of 905 patients (mean age 57.5 years, mean follow‐up 78 months), who underwent RN (n = 610) or PN (n = 295) between July 1987 and June 2007. Demographics, preoperative and postoperative hyperlipidaemia were recorded.De novo hyperlipidaemia was defined as that ocurring ≥6 months after surgery in cases where laboratory values met National Cholesterol Education Program Adult Treatment Panel III definitions. The Kaplan–Meier method was used to assess freedom from de novo hyperlipidaemia. Multivariable analysis was conducted to determine the risk factors for de novo hyperlipidaemia.ResultsThere were no significant differences with respect to demographics, preoperative glomerular filtration rate (GFR) <60 mL/min/1.73 m2 (P = 0.123) and hyperlipidaemia (P = 0.144). Tumour size (cm) was significantly larger in the RN group vs the PN group (7.0 vs 3.7; P < 0.001). Significantly greater postoperative GFR <60 mL/min/1.73 m2 was noted in the RN group (45.7 vs 18%, P < 0.001). Significantly, more de novo hyperlipidaemia developed in the RN group than in the PN group (23 vs 6.4%; P < 0.001). The mean time to development of hyperlipidaemia was longer for PN than for RN (54 vs 44 months; P = 0.03). Five‐year freedom from de novo hyperlipidaemia probability was 76% for RN vs 96% for PN (P < 0.001). Multivariable analysis showed that RN (odds ratio [OR] 2.93; P = 0.0107), preoperative GFR <60 mL/min/1.73 m2 (OR 1.98; P = 0.037) and postoperative GFR <60 mL/min/1.73 m2 (OR 7.89; P < 0.001) were factors associated with hyperlipidaemia development.ConclusionPatients who underwent RN had a significantly higher incidence of and shorter time to development of de novo hyperlipidaemia. RN and pre‐ and postoperative eGFR <60 mL/min/1.73 m2 were associated with development of hyperlipidaemia. Further follow‐up and prospective investigation are necessary to confirm these findings.
Acetylcholinesterase Inhibitory Activity and Molecular Docking Study of 1‐Nitro‐2‐Phenylethane, the Main Constituent of Aniba canelilla Essential Oil
Authors: Silva Nayla N. S. , Silva José R. A. , Alves Claudio N. , Andrade Eloisa H. A. , da Silva Joyce K. R. , Maia José G. S. 
Published: March 2014

The odoriferous principle of Aniba canelilla (H.B.K.) Mez is due 1‐nitro‐2‐phenylethane, the main constituent of its essential oil and also responsible for the plant's cinnamon scent. This nitroderivative was previously reported by their antioxidant, antinociception, cardiovascular, and vasorelaxant properties, and now it was tested as the inhibitor of acetylcholinesterase using bioautography on TLC plates. The oil and a purified fraction containing 1‐nitro‐2‐phenylethane were analyzed by GC and GC‐MS. The percentage content of 1‐nitro‐2‐phenylethane in the oil and after fractionation was 70.2% and 98.0%, respectively. The results showed that the oil and 1‐nitro‐2‐phenylethane are strong acetylcholinesterase inhibitors with the detection limit of 0.01 ng, equivalent to physostigmine used as the positive control. A molecular docking study was used to determine the position and conformation of the 1‐nitro‐2‐phenylethane inhibitor in the receptor‐binding pocket of the acetylcholinesterase enzyme. The nitrogroup of 1‐nitro‐2‐phenylethane was positioned near of the catalytic serine residue of acetylcholinesterase, forming strong hydrogen bond with its hydroxyl group. Therefore, the electronegative character of 1‐nitro‐2‐phenylethane may explain the interaction that occurs with the catalytic serine residue and its significant inhibitory activity of acetylcholinesterase.
Susceptibility quantitative trait loci for pathogenic leucocytosis in SCG/Kj mice, a spontaneously occurring crescentic glomerulonephritis and vasculitis model
Authors: Hamano Y , Abe M , Matsuoka S , Zhang D , Kondo Y , Kagami Y , Ishigami A , Maruyama N , Tsuruta Y , Yumura W , Suzuki K 
Published: March 2014

SummaryThe spontaneous crescentic glomerulonephritis-forming/Kinjoh (SCG/Kj) mouse, a model of human crescentic glomerulonephritis (CrGN) and systemic vasculitis, is characterized by the production of myeloperoxidase-specific anti-neutrophil cytoplasmic autoantibody (MPO-ANCA) and marked leucocytosis. This study was performed to identify the specific populations of leucocytes associated with CrGN and susceptibility loci for pathogenic leucocytosis. Four hundred and twenty female (C57BL/6 × SCG/Kj) F2 intercross mice were subjected to serial flow cytometry examination of the peripheral blood (PB). Kidney granulocytes and monocytes were examined histopathologically. Linkage analyses were performed with 109 polymorphic microsatellite markers. Correlation studies revealed that increase of the granulocytes, F4/80+ cells, CD3+CD4−CD8−T cells and dendritic cells (DCs) in peripheral blood (PB) were associated significantly with glomerulonephritis, crescent formation and vasculitis. In kidney sections, F4/80low cells were observed in crescent, while F4/80high cells were around the Bowman's capsules and in the interstitium. Numbers of F4/80+ cells in crescents correlated significantly with F4/80+ cell numbers in PB, but not with numbers of F4/80+ cells in the interstitium. Genome-wide quantitative trait locus (QTL) mapping revealed three SCG/Kj-derived non-Fas QTLs for leucocytosis, two on chromosome 1 and one on chromosome 17. QTLs on chromosome 1 affected DCs, granulocytes and F4/80+ cells, but QTL on chromosome 17 affected DCs and granulocytes. We found CrGN-associated leucocytes and susceptibility QTLs with their positional candidate genes. F4/80+ cells in crescents are considered as recruited inflammatory macrophages. The results provide information for leucocytes to be targeted and genetic elements in CrGN and vasculitis.
Complete mesocolic resection and extended lymphadenectomy for colon cancer: a systematic review
Authors: Killeen S. , Mannion M. , Devaney A. , Winter D. C. 
Published: March 2014

AbstractAimComplete mesocolic excision (CME) and extended lympha‐denectomy (EL) have been proposed as safe procedures for improving colon cancer survival outcomes. The aim of this study was to evaluate the evidence regarding oncological outcomes, morbidity and mortality after such techniques for colon cancer.MethodA systematic review of the literature was conducted to evaluate evidence regarding oncological outcomes, morbidity and mortality after CME or EL. Three major databases (PubMed, MEDLINE and the Cochrane Library) were searched. The review included original articles reporting outcomes after CME or EL from January 1950 to July 2012.ResultsTwenty‐one, predominately retrospective, studies involving 5246 patients (mean age 68.2 years, 56.5% men) were included. Reporting of outcomes was inconsistent. Median follow up was 60 months. The operative mortality rate was 3.2% and the cumulative morbidity rate was 21.5%. The weighted mean local recurrence rate and the 5‐year overall and disease‐free survival rates were 4.5%, 58.1% and 77.4%, respectively.ConclusionThe available data for CME and EL have numerous fundamental limitations that prohibit adoption. Contemporary controlled studies are required before universal recommendation.
Impact of urinary tract infection on allograft function after kidney transplantation
Authors: Ariza‐Heredia Ella J. , Beam Elena N. , Lesnick Timothy G. , Cosio Fernando G. , Kremers Walter K. , Razonable Raymund R. 
Published: March 2014

AbstractObjectivesUrinary tract infection (UTI) is the most common infectious complication after kidney transplantation. We aim to determine its impact on allograft function as indicated by several measures such as iothalamate glomerular filtration rate (iGFR), estimated glomerular filtration rate (eGFR), and creatinine value.MethodsWe performed a single‐center retrospective cohort study to determine the impact of UTI on kidney allograft outcome.ResultsThe study population consisted of 301 kidney transplant recipients; 84% were living donor transplants. One hundred and one patients (34%) developed at least one episode of UTI and the incidence of UTI during the first year after transplantation was 25%. At the end of the follow‐up, the iGFR was lower among patients who had developed at least one UTI (p = 0.044). However, eGFR and creatinine values were not significantly different between UTI and non‐UTI groups.ConclusionWhen kidney function was measured by eGFR and creatinine, there was no significant difference in allograft function between kidney recipients with or without UTI. However, when kidney function was measured by nuclear studies, there was a tendency toward impairment in allograft function among patients who developed atleast one UTI after transplantation.
Predictive factors for adverse pregnancy outcomes after renal transplantation
Authors: You Ji Yeon , Kim Moon‐Kyung , Choi Suk‐Joo , Oh Soo‐young , Kim Sung‐Joo , Kim Jong‐Hwa , Oh Ha‐Young , Roh Cheong‐Rae 
Published: March 2014

AbstractSeveral predictive factors associated with adverse pregnancy outcomes in female renal recipients have been suggested. Our study aimed to determine the most important factor for prediction of adverse pregnancy outcomes in female renal recipients. We studied 41 pregnancies in 29 female renal recipients retrospectively. We reviewed pregnancy outcomes and possible predictive factors including pre‐pregnancy serum creatinine (SCr), pre‐pregnancy glomerular filtration rate (GFR), pre‐pregnancy hypertension, pre‐pregnancy proteinuria, transplantation‐pregnancy interval and type of immunosuppressants. We defined an adverse pregnancy‐related outcomes index (APOI) that included the following conditions: (i) preeclampsia; (ii) fetal growth restriction (FGR); (iii) prematurity before 34 wk of gestation; (iv) fetal loss (v) graft dysfunction during pregnancy or within three months from delivery. The cutoff of pre‐pregnancy serum creatinine and GFR was determined by receiver operating characteristics curves for the prediction of each adverse outcome and APOI. Only pre‐pregnancy serum creatinine was associated with adverse pregnancy outcome, and 1 mg/dL was determined to be a useful cutoff for the prediction of each adverse outcomes. Pre‐pregnancy SCr ≥ 1 mg/dL was associated with 7.7 times increased risk of preeclampsia and 6.9 times increased risk of APOI. Pre‐pregnancy serum creatinine is the most powerful predictive factor for adverse pregnancy outcomes, and <1 mg/dL may be used as a screen for successful pregnancy outcome.