bluuebunny/crossref_metadata_2025_split huggingface dataset:
Le rêve chinois : imaginaire social ou slogan politique ?
Authors: Wang Yun 
Published: March 2015

Cet article a pour but d’étudier ce que recouvre le « rêve chinois » au paradigme de la sociologie compréhensive. Cette expression renvoie au pouvoir d’imaginer l’ensemble spécifique qu’est la société chinoise dans tous ses éléments historiques, psychologiques et culturels. Si le paradigme compréhensif nous permet d’entendre le rêve collectif comme le choix d’un mode de vie sociale, son application dans le cas de la Chine nous permet de conclure à une double modalité du « rêve chinois ». Premièrement, étant assimilable à un slogan politique, le rêve chinois préconisé par le président chinois Xi Jinping ne peut durablement exister ; deuxièmement, les rêves chinois multidimensionnels sont en train de déborder dans une lutte contre la politique du « contrôle total ».
Uniformly Stable Explicitly Solvable Finite Difference Method for Fractional Diffusion Equations
Authors: Rui Hongxing , Huang Jian 
Published: March 2015

AbstractA finite difference scheme for the one-dimensional space fractional diffusion equation is presented and analysed. The scheme is constructed by modifying the shifted Grünwald approximation to the spatial fractional derivative and using an asymmetric discretisation technique. By calculating the unknowns in differential nodal point sequences at the odd and even time levels, the discrete solution of the scheme can be obtained explicitly. We prove that the scheme is uniformly stable. The error between the discrete solution and the analytical solution in the discretel2norm is optimal in some cases. Numerical results for several examples are consistent with the theoretical analysis.
Efficient Numerical Solution of the Multi-Term Time Fractional Diffusion-Wave Equation
Authors: Ren Jincheng , Sun Zhi-Zhong 
Published: March 2015

AbstractSome efficient numerical schemes are proposed to solve one-dimensional and two-dimensional multi-term time fractional diffusion-wave equation, by combining the compact difference approach for the spatial discretisation and an L1 approximation for the multi-term time Caputo fractional derivatives. The unconditional stability and global convergence of these schemes are proved rigorously, and several applications testify to their efficiency and confirm the orders of convergence.
Projection and Contraction Method for the Valuation of American Options
Authors: Song Haiming , Zhang Ran 
Published: March 2015

AbstractAn efficient numerical method is proposed for the valuation of American options via the Black-Scholes variational inequality. A far field boundary condition is employed to truncate the unbounded domain problem to produce the bounded domain problem with the associated variational inequality, to which our finite element method is applied. We prove that the matrix involved in the finite element method is symmetric and positive definite, and solve the discretized variational inequality by the projection and contraction method. Numerical experiments are conducted that demonstrate the superior performance of our method, in comparison with earlier methods.
Influence of chosen microbes and some chemical substances on the production of aflatoxins
Authors: Brožková Iveta , Šmahová Petra , Vytřasová Jarmila , Moťková Petra , Pejchalová Marcela , Šilha David 
Published: March 2015

Aflatoxins are produced as secondary metabolites by A. flavus, A. parasiticus, A. nomius and A. tamarii. The aflatoxin biosynthetic pathway involves several enzymatic steps and genes (apa-2, ver-1) that appear to be regulated by the aflR gene in these fungi. The aim of this work was the detection of aflatoxins by the HPLC method and the ascertainment of factors influencing their production. A. parasiticus CCM F-108, A. parasiticus CCF 141, A. parasiticus CCF 3137 and two isolates A. flavus were used. These toxigenic isolates were recovered from spice (strain 1) and wraps (strain 2). The gene for the production of aflatoxin B1 for each species of fungi was detected using an optimized PCR method. Rhodotorula spp.*, Lactococcus lactis subsp. lactis CCM 1881, Flavobacterium spp. and fungal strain Pythium oligandrum* were tested for inhibition of aflatoxins production and fungal growth. Having used the HPLC detection, various preservatives (propionic acid, citric acid, potassium sorbate) were tested from the viewpoint of their influence on the growth of aflatoxigenic fungi followed by the production of aflatoxins. The growth of A. flavus and A. parasiticus and aflatoxin production in Potato Dextrose Agar supplemented with propionic acid (1000-2000-3000 mg/kg), citric acid (2000-3000-4000 mg/kg) and potassium sorbate (500-800-1000 mg/kg) was tested by Agar Dilution Method. After 72 h of incubation was evaluated growth of fungi, all samples were frozen for later extraction and aflatoxins quantification by HPLC. Effect of peptone and sucrose additions were studied in yeast extract (2%) supplemented with peptone (5-10-15%) or sucrose (15%). Growth inhibition of Aspergillus by Pythium oligandrum was tested on wood surface. As shown, the highest inhibition effect on the aflatoxins production was obtained when propionic acid was applied in concentrations since 1000 mg/kg. A total inhibition of the fungi growth and aflatoxins production was observed in all samples containing peptone in the concentration range tested. Significant limitation of the growth and production of aflatoxins was also observed in the presence of other microorganisms such like Pythium oligandrum and Rhodotorula spp.
Production of T-2 toxin and deoxynivalenol in the presence of different disinfectants
Authors: Hrubošová Dana , Vytřasová Jarmila , Brožková Iveta 
Published: March 2015

The aim of the work was to examine the effect of different disinfectants on production trichothecenes (especially of T-2 toxin and deoxynivalenol). Lipophilicity, chemical structure, the presence of bioactive groups and functional groups in their structure modifies biological activity and toxic potency of trichothecenes. For this reason, limits have been established designating maximum levels of mycotoxins in cereals while maintaining proper growing practices. Appropriate nutritive media were prepared with different concentration of tested disinfectants (Desanal A plus, ProCura spray and Guaa-Pool) and were inoculated using Fusarium strains. The density of Fusarium was 105 spores per mililitre. Nutrient media was cultivated at 15 °C and 25 °C for seven days. The strains of Fusarium graminearum CCM F-683 and Fusarium species (isolated from barley) produced quantities of deoxynivalenol. Fusarium poae CCM F-584 and Fusarium species (isolated from malthouse air) produced quantities of T-2 toxin. Desanal A plus prevented Fusarium growth and production of T-2 toxin and deoxynivalenol at the concentration 10%. It is an alkaline disinfectant on the basis of active chlorine and the surfactant that contains ˂5% of NaClO. ProCura spray at the concentration 0.6% proved to be very effective. This disinfectant contains 35% of propan-1-ol and 25% of propan-2-ol. Guaa-Pool at the concentration 0.004% proved to be very effective. It is a polymeric disinfectant with anion surface-acting agent and it contains ˂0.9% of polyhexamethylene guanidine hydrochloride and ˂0.2% of alkyl (C12-C16) dimethylbenzyl ammonium chloride. Lower contentration of disinfectants that not prevented growth of Fusarium caused higher production of T-2 toxin and deoxynivalenol. The contents of T-2 toxin and deoxynivalenol were analyzed by enzyme-linked immunosorbent assay (ELISA) using commercially produced kits (Agra Quant® Deoxynivalenol Test kit and Agra Quant® T-2 toxin Test kit). The experiment showed that the variability in the production of T-2 toxin and deoxynivalenol depended on the Fusarium strain used, concentration of disinfectants and temperature of cultivation.
Phacoemulsification with Toric IOL Implantation in Alport Syndrome with Anterior Lenticonus having Spontaneously Ruptured Anterior Capsule
Authors: Agrawal Niraj , Prasad Nayak Durga , Haripriya Aravind , Bhuwania Puja 
Published: March 2015

Purpose To report the outcome of phacoemulsification with toric intraocular lens (IOL) implantation in Alport syndrome with spontaneously ruptured capsule. Methods Case report and literature review. Results A 2.2-mm clear corneal phacoemulsification with toric lens implantation was done in anterior lenticonus with spontaneously ruptured anterior capsule. The toric IOL was well-centered with good visual outcome. Conclusions Safe phacoemulsification with toric IOL implantation is possible in cases with spontaneous rupture of anterior lens capsule. Ability to achieve compact and complete capsulorhexis is one of the key steps to achieve favorable results.
Intraocular Pressure after Intravitreal Injection of Dexamethasone Implant for Macular Edema Resulting from Retinal Vein Occlusion
Authors: Caillaux Violaine , Valtot Françoise , Souied Eric H. , Mimoun Gérard 
Published: March 2015

Purpose A recognized side effect of corticosteroids intravitreal injections (IVT) is the onset of ocular hypertension. The aim of our study was to analyze changes in short-term intraocular pressure (IOP) after IVT of sustained-release dexamethasone implant in order to provide an appropriate monitoring scheme. Methods In this retrospective study, the charts of 44 eyes of 42 patients treated by IVT of dexamethasone implant for macular edema resulting from retinal vein occlusion were reviewed. The IOP measurements were performed at baseline and at 15 minutes, 7 days (D7), 1 month (Ml), 2 months (M2), and 4 months (M4) after IVT. Results Mean IOP was 13.4 ± 2.5 mm Hg at baseline. Twelve eyes out of 44 (27.3%) were treated with antihypertensive eyedrops for a well-controlled glaucoma at baseline. Following IVT, mean IOP was 11.5 ± 3.6 mm Hg at 15 minutes, 14.7 ± 3.1 mm Hg at D7, 16.4 ± 7.0 mm Hg at M1, 19.3 ± 7.9 mm Hg at M2, and 13.5 ± 3.1 mm Hg at M4. An IOP ≥25 mm Hg or increased by 10 mm Hg or more was not observed in any eye at 15 minutes, D7, or M4 after IVT, but in 8.6% of cases at M1 and in 25% at M2. Conclusions It seems reasonable to perform the first IOP monitoring 1 month after IVT of dexamethasone implant and at each efficacy assessment visit (M2, M4). Special attention should be given to patients at risk, such as glaucoma patients. An IOP measurement immediately after IVT and in the following days (1 week) does not seem to be appropriate on a routine basis.
Evaluation of a Pseudo-One-Compartment Model for Phosphorus Kinetics by Later-Phase Dialysate Collection during Blood Purification
Authors: Yashiro Masatomo , Kotera Hirohisa , Matsukawa Makoto , Kita Tomoyuki , Tanaka Hiroshi , Sakai Rumi 
Published: March 2015

Purpose Phosphorus removal is a major issue to assess for physicians engaging in hemodialysis. A pseudo-one-compartment model was reported as a novel model for phosphorus kinetics. We aimed to evaluate the adequacy of this model from the standpoint of the total mass of removed phosphorus during prolonged treatment. Methods Dialysate was collected during 6-h hemodialysis and hemodiafiltration treatment in 5 patients. Later-phase (from 4 to 6 h) dialysate was collected separately. Mobilization clearance (Km and dialyzer clearance (K) were calculated by simple arithmetic operations utilizing stable serum phosphorus concentrations in this later phase. Volume of the accessible compartment (V0) was estimated by a fitting method. Amounts of removed phosphorus were calculated with these parameters and compared with measured values. The best sampling time points during treatment were also assessed, when the parameters were determined by serial serum phosphorus concentrations alone. Results Pearson's correlation coefficient (R) between calculated and measured values of removed phosphorus was 0.991 and the concordance correlation coefficient (ρ) was 0.987. When Km, K and V0 were determined by serial serum concentrations alone, including those at 0, 1, 4, and 6 h, the calculated mass of removed phosphorus had high R (0.974–0.975) or ρ (0.966–0.972) with the measured values. Conclusions We confirmed that a pseudo-one-compartment model is useful for the estimation of removed phosphorus mass during prolonged blood purification by collecting dialysate. When the parameters are determined by a fitting method using serial serum concentrations alone, sampling at 0, 1, 4, and 6 h seems to be adequate.
NT-proBNP and Troponin T Levels Differ after Haemodialysis with a Low versus High Flux Membrane
Authors: Laveborn Emilie , Lindmark Krister , Skagerlind Malin , Stegmayr Bernd 
Published: March 2015

Background Brain natriuretic peptide (BNP), N-terminal-proBNP (NT-proBNP), and high sensitive cardiac troponin T (TnT) are markers that are elevated in chronic kidney disease and correlate with increased risk of mortality. Data are conflicting on the effect of biomarker levels by hemodialysis (HD). Our aim was to clarify to what extent HD with low-flux (LF) versus high-flux (HF) membranes affects the plasma levels of BNP, NT-proBNP, and TnT. Methods and Materials 31 HD patients were included in a crossover design, randomized to start dialysis with a LF-HD or HF-HD dialyzer. Each patient was his/her own control. The dialyses included in the study were the first treatments of two consecutive weeks with each mode of dialysis. Patients normally on hemodiafiltration (HDF) also performed a HDF the third week. Values after HD were corrected for extent of ultrafiltration. Results During LF-HD the biomarkers NT-proBNP and TnT increased (15 versus 6%, P≤.001) while there was a slight decrease in BNP ( P<.05). During HF-HD the NT-proBNP, BNP and TnT levels decreased ( P≤.01 for all). During HDF all three markers decreased ( P<.01 for all). The rise in TnT during LF-HD correlated with dialysis vintage (months on HD, r = .407, P = .026), Kt/V-urea (r = .383, P = .037), HD time in hours/treatment (r = .447, P = .013) and inversely with residual urinary output (r = -.495, P = .005). The baseline levels of BNP and NT-proBNP correlated with blood pressure. Conclusions Cardiac biomarkers increase slightly during LF-HD. A HF-HD eliminates the biomarkers and can mask increases caused by, e.g., myocardial infarction.
Factors Associated with Albumin Loss in Post-Dilution Hemodiafiltration and Nutritional Consequences
Authors: Fournier Anne , Birmelé Béatrice , François Maud , Prat Louis , Halimi Jean-Michel 
Published: March 2015

Introduction Hemodiafiltration is currently one of the most effective techniques of extra-renal purification but results in an increase of albumin loss in dialysate. We aimed to determine the factors associated with albumin loss during post-dilution hemodiafiltration, compare an “automatic” mode of infusate flow control versus a “manual” control, and assess the potential nutritional impact. Methods This prospective observational study included all hemodialysis patients in our institution who underwent post-dilution hemodiafiltration 3 times a week on a Fresenius 5008 for at least 2 months. At each session, albumin content was measured in a representative effluent dialysate volume. The automatic mode of the Fresenius 5008 was used for automatic infusate flow control. Results In all, 18 patients (mean age 60.7 ± 15 years) underwent 85 post-dilution hemodiafiltration sessions. The mean albumin loss was 3134 ± 2450 mg/session. Albumin loss was significantly affected by infusate flow, infusate volume, transmembrane pressure and ultrafiltration volume. The loss was greater with Toraysulfone and FX 1000 membranes rather than FX 80 or FX 100 membranes. With AutoSub rather than manual control, infusate flow was greater ( P<.001), transmembrane pressure was higher (P = .004), and the albumin loss was greater (P = .010). However, there was no correlation between albumin loss and nutritional variables. Conclusions Albumin loss during post-dilution hemodiafiltration was correlated with increased transmembrane pressure and infusate flow, especially AutoSub flow control, and type of membrane. However, this loss, when moderate, did not seem to affect nutritional aspects and should not limit the use of hemodiafiltration.
Buccal Mucosa Repair with Electrospun Silk Fibroin Matrix in a Rat Model
Authors: Tang Jing , Han Yongjie , Zhang Feng , Ge Zili , Liu Xi , Lu Qiang 
Published: March 2015

Introduction Biomimic electrospun matrix derived from silk fibroin nanofiber solution was recently prepared in our group. The feasibility of the matrix as mucosa repair scaffold was evaluated in a rat model in the present study. Methods Full thickness wound was established on the buccal mucosa of male Wister rats via microscopic oral surgery. 80 rats were randomly assigned into 4 groups: ( 1 ) silk fibroin matrix, ( 2 ) commercial cowhide acellular dermal matrix (Heal-AII), ( 3 ) commercial acellular dermal matrix of human skin (RENOV), and ( 4 ) vaseline gauze, respectively. Results The silk fibroin matrix showed similar repair performance compared to the commercial acellular dermal matrices, implying promising applications in mucosa regeneration. More importantly, the silk fibroin matrix showed better wound healing ability, improved wound shrinkage inhibition, and reduced local immunological incompatibility. Conclusions The silk fibroin scaffold performed satisfied in scar tissue inhibition and epidermis regeneration. Taking into account its improved mechanical properties, the biomimic electrospun silk matrix could become a promising substitute of acellular dermal matrix in clinical applications.
A Novel Peritoneum Derived Vascular Prosthesis Formed on a Latex Catheter in an SDF-1 Chemokine Enriched Environment: A Pilot Study
Authors: Ulczok Rafał , Milewski Krzysztof , Bis Jaroslaw , Samborski Stefan , Krauze Agata , Jelonek Michał , Guc Michal , Smyczek Dominika , Aboodi Michael , Maciejewski Adam , Buszman Pawel E. , Bochenek Andrzej , Wojakowski Wojciech , Krejca Michal 
Published: March 2015

Introduction Although saphenous vein grafts are widely used conduits for coronary artery bypass graft surgery, their clinical value remains limited due to high failure rates. The aim of the study was to evaluate feasibility, safety, and biocompatibility of peritoneal derived vascular grafts (PDVG) formed on a silicone-coated, latex, Foley catheter in a stromal cell-derived factor (SDF-1)- enriched environment. Methods Foley catheters were implanted into the parietal wall of 8 sheep. After 21 days the peritoneal cavity was re-opened and the newly formed tissue fragments were harvested. The animals were randomly assigned into: ( 1 ) study group in which conduits were incubated in a solution containing SDF-1, ( 2 ) control group without SDF-1 incubation. Left carotid arteries were accessed and “end-to-side” anastomoses were performed. Biological materials for histological examination were taken at 4, 7, 10, and 14 days. Results and Conclusions The study proved safety, feasibility, and biocompatibility of PDVG formed on the basis of a silicone-coated, latex catheter in an SDF-1 chemokine-enriched environment. These biological grafts effectively integrated with the native high-pressure arterial environment in an ovine model and provided favorable vascular profile. The potential clinical value of this technology needs to be further elucidated in long-term preclinical and clinical studies.
Single Nucleotide Polymorphisms in VTI1A Gene Contribute to the Susceptibility of Chinese Population to Non-Small Cell Lung cancer
Authors: Su Wen-Mei , Chen Zhi-Hong , Zhang Xu-Chao , Su Jian , Xie Zhi , Yan Hong-Hong , Yang Jin-Ji , Chen Hua-Jun , Zhou Qing , Zhong Wen-Zhao , Guo Wei-Bang , Chen Shi-Liang , Wu Yi-Long 
Published: March 2015

Background Genome-wide association studies (GWAS) have determined a new single nucleotide polymorphism (SNP) called VTI1A (rs7086803) that induces lung cancer susceptibility in nonsmoking women in Asia. This study aimed to evaluate the association between the VTI1A gene and the susceptibility of Chinese patients to lung cancer; it was also conducted to investigate the relationship between VTI1A SNP and adiponectin receptor 1 expression. Methods A total of 887 subjects were enrolled in this study. VTI1A (rs7086803) genotypes were determined by genotyping. Overall survival (OS) was evaluated using Kaplan-Meier analysis with a log-rank test. Results Multivariate regression analysis results indicated that the AA genotype of VTI1A (rs7086803) polymorphism was associated with an increased risk of developing non-small cell lung carcinoma (NSCLC) compared with the GG genotype (AA vs. GG: odds ratio [OR] = 2.020; 95% confidence interval [95% CI], 1.033-3.949, p = 0.037). The AA genotype of VTI1A (rs7086803) in smokers predicted significantly shorter OS (median survival time [MST]: AA 9.8 months, AG 19.3 months, GG 12.2 months, p = 0.017). Adiponectin receptor 1 expression in tumor tissues with the AA genotype was significantly lower than that for other genotypes (mean rank: AA 18.55, AG 25, GG 45.76, p = 0.001). Conclusions The presence of the allele A of VTI1A (rs7086803) may be the allele contributing to the risk of lung cancer susceptibility in Chinese population. Smoking lung cancer patients with the AA genotype of VTI1A gene (rs7086803) had a poor survival rate. Adiponectin receptor 1 expression may be correlated with the susceptibility of the allele A of VTI1A.
Urinary Bladder Preservation for Muscle-invasive Bladder Cancer: A Survey among Radiation Oncologists of Lombardy, Italy
Authors: Jereczek-Fossa Barbara Alicja , Colombo Renzo , Magnani Tiziana , Fodor Cristiana , Gerardi Marianna Alessandra , Antognoni Paolo , Barsacchi Lucia , Bedini Nice , Bracelli Stefano , Buffoli Alberto , Cagna Emanuela , Catalane Gianpiero , Gottardo Stefania , Italia Corrado , Ivaldi Giovanni Battista , Masciullo Stefano , Merlotti Anna , Sarti Enrico , Scorsetti Marta , Serafini Flavia , Toninelli Mariasole , Vitali Elisabetta , Valdagni Riccardo , Villa Elisa , Zerini Dario , De Cobelli Ottavio , Orecchia Roberto 
Published: March 2015

Aims and Background Bladder preservation is a treatment option in muscle-invasive bladder carcinoma. The most investigated approach is a trimodality schedule including maximum transurethral resection of bladder tumor (TURBT) followed by chemoradiotherapy. Our aim was to evaluate the use of bladder preservation by radiation oncologists of the Lombardy region in Italy. Methods and Study Design A survey with 13 items regarding data of 2012 was sent to all 32 radiotherapy centers within the collaboration between the Lombardy Oncological Network and the Lombardy Section of the Italian Society of Oncological Radiotherapy. Results Thirteen centers (41%) answered the survey; the presented data come from 11 active centers. In these centers, 11,748 patients were treated with external-beam radiotherapy in 2012, 100 of whom having bladder cancer (0.9%). 74/100 patients received radiotherapy as palliative treatment for T, N or M lesions. A further 9 and 5 patients received radiotherapy for oligometastatic disease (ablative doses to small volumes) and postoperatively, respectively. Bladder preservation was performed in 12 cases and included trimodality and other strategies (mainly TURBT followed by radiotherapy). A multidisciplinary urology tumor board met regularly in 5 of 11 centers. All responders declared their interest in the Lombardy multicenter collaboration on bladder preservation. Conclusions Our survey showed that bladder preservation is rarely used in Lombardy despite the availability of the latest radiotherapy technologies and the presence of an urology tumor board in half of the centers. The initiative of multicenter and multidisciplinary collaboration was undertaken to prepare the platform for bladder preservation as a treatment option in selected patients.