bluuebunny/crossref_metadata_2025_split huggingface dataset:
True North Groups: A big idea for developing leaders
Authors: George Bill 
Published: December 2011

AbstractToday's leaders must develop their emotional intelligence to overcome the crisis of leadership of the past decade. George explains how leaders can become truly authentic through aligning, empowering, serving, and collaborating. A valuable setting for their development can take place in small, intimate peer groups George dubs the “True North Group.” Participants “can share their experiences, challenges, and frustrations and get honest feedback.” They can thus grow as people and as leaders, develop confidence and self‐compassion, and accept their own strengths and weaknesses.
Authenticity is everything: An interview with Jeffrey Gitomer
Authors: Gitomer Jeffrey 
Published: December 2011

AbstractDon't just lead by example, Gitomer advises. Set a standard for others to follow. Leaders who do this will prove not only their own authenticity, but also that of their organization. They must “rate their own reality.” Bland, forgettable mission statements don't have the force of strong customer promises backed up by being the best at what you do. Leaders who are preoccupied with “making the last dime for their shareholders” will find that their time is better spent communicating continually inside and outside their organization.
Comparison of sulphide corrosivity of sulphate‐ and non‐sulphate‐reducing prokaryotes isolated from oilfield injection water
Authors: Duque Z. , Ibars J. R. , Sarró M. I. , Moreno D. A. 
Published: December 2011

AbstractThe microbiologically influenced corrosion (MIC) of water injection systems by sulphate‐reducing prokaryotes (SRP) has caused many problems in the oil industry. These prokaryotes produce H2S, which reacts aggressively with steel and is thus widely considered to be the main cause of bacterial corrosion of industrial oil equipment. However, current microbiological treatments and controls have not taken into account other groups of sulphidogenic prokaryotes, which also produce H2S or its derivatives and with the same adverse effects of MIC. In the present work, sulphidogenic prokaryotes were isolated from water injection systems and identified by DNA sequencing. The identified species included sulphate‐reducing Desulfovibrio termitidis and non‐sulphate‐reducing Escherichia coli. Biocorrosion tests were carried out on API 5L grade X65 carbon steel. Electrochemical impedance spectroscopy, polarisation resistance, open circuit potential and weight loss were carried out. Steel corrosion resulting from the production of the metabolite H2S by SRP and non‐SRP was observed, with sulphide generation by SRP much greater than that by non‐SRP. These results confirm the need to investigate and consider the role of not only SRP but also non‐SRP in order to improve the control over bacterial corrosion of oil‐industry equipment.
Investigations on susceptibility to intergranular corrosion of thermo‐mechanically rolled corrosion‐resistant materials 316L and Alloy 825
Authors: Prohaska M. , Mori G. , Grill R. , Tischler G. , Mitsche S. 
Published: December 2011

AbstractThe influence of parameters of a thermo‐mechanical rolling process on corrosion properties of materials 316L and Alloy 825 was studied by means of the DL‐EPR‐method and a conventional corrosion test. Prior to polarization measurements, optimization of the DL‐EPR‐method was conducted. SEM was used to characterize microstructure and type of attack before and after corrosion testing. A strong correlation between annual corrosion rates and DL‐EPR‐test results was obtained. Due to the low tendency of both alloys to form corrosion‐promoting precipitates, the applicable range of process parameters for both alloys is large and the fabrication process in general is not critical.
Investigation of the microstructure of an aqueously corroded zinc wire by data‐constrained modelling with multi‐energy X‐ray CT
Authors: Wang Y. D. , Yang Y. S. , Cole I. , Trinchi A. , Xiao T. Q. 
Published: December 2011

AbstractThe compositional microstructure of a zinc sample that has been subjected to aqueous oxidation has been investigated using a data‐constrained modelling (DCM) approach combined with multi‐energy X‐ray micro computed tomography (CT) data. High‐resolution X‐ray CT data sets were acquired at the Shanghai Synchrotron Radiation Facility (SSRF) at beam energies of 9 and 10.5 keV. CT images were used to reconstruct the three dimensional chemical compositional distribution via the DCM approach, with spatial resolution at the order of a micron. The results indicate that the interface between zinc and zinc oxide is characterized by a triple layer where the innermost layer consists of zinc and zinc oxide and the outer layers of zinc oxide with differing density.
Corrosion behavior of twinning‐induced plasticity (TWIP) steel
Authors: Kannan M. Bobby , Raman R. K. Singh , Khoddam S. , Liyanaarachchi S. 
Published: December 2011

AbstractIn this study, the corrosion behavior of twinning‐induced plasticity (TWIP) steel i.e. Fe‐Mn‐Al‐Si steel subjected to cold‐working (0, 20, and 35%), was examined in acidic (0.1 M H2SO4), alkaline (0.1 M NaOH) and chloride‐containing (3.5% NaCl) environments, using potentiodynamic polarization experiments. Interestingly, cold‐working did not show any significant change in the corrosion susceptibility of TWIP steel in all the three environments. However, TWIP steel showed the highest corrosion susceptibility in acidic environment and the lowest in alkaline environment. Scanning electron microscope analysis of the corroded TWIP steel samples revealed high‐localized attack in acidic environment and some pitting corrosion in chloride‐containing solution.
Core‐Shell Structures of Oligosaccharide‐Functionalized Hyperbranched Poly(ethylene imines)
Authors: Thünemann Andreas F. , Bienert Ralf , Appelhans Dietmar , Voit Brigitte 
Published: December 2011

AbstractHyperbranched poly(ethylene imine)s (PEIs) functionalized with maltose, maltotriose, and maltoheptaose form distinct core‐shell globular nanoparticles as revealed by small‐angle X‐ray scattering (SAXS). The solution structures are quantified using the Beaucage unified exponential/power‐law approach. SAXS results were confirmed with dynamic light scattering (DLS). We found that all PEI structures are completely insensitive to changes of temperature (5 °C < T < 80 °C) and pH (1 < pH < 10). This remarkable stability of a compact spherical polymeric structure makes the modified PEIs promising for a wide range of biomedical applications.
Benzo[1,2‐b:4,5‐b′]dithiophene Building Block for the Synthesis of Semiconducting Polymers
Authors: Sista Prakash , Biewer Michael C. , Stefan Mihaela C. 
Published: December 2011

AbstractThis review covers the synthesis and polymerization of benzo[1,2‐b: 4,5‐b′]dithiophene (BDT) to generate semiconducting polymers used in organic field‐effect transistors (OFET) and organic solar cells applications.
Turmeric (Curcuma longa) inhibits inflammatory nuclear factor (NF)‐κB and NF‐κB‐regulated gene products and induces death receptors leading to suppressed proliferation, induced chemosensitization, and suppressed osteoclastogenesis
Authors: Kim Ji H. , Gupta Subash C. , Park Byoungduck , Yadav Vivek R. , Aggarwal Bharat B. 
Published: December 2011

AbstractScope The incidence of cancer is significantly lower in regions where turmeric is heavily consumed. Whether lower cancer incidence is due to turmeric was investigated by examining its effects on tumor cell proliferation, on pro‐inflammatory transcription factors NF‐κB and STAT3, and on associated gene productsMethods and results Cell proliferation and cell cytotoxicity were measured by the MTT method, NF‐κB activity by EMSA, protein expression by Western blot analysis, ROS generation by FACS analysis, and osteoclastogenesis by TRAP assay. Turmeric inhibited NF‐κB activation and down‐regulated NF‐κB‐regulated gene products linked to survival (Bcl‐2, cFLIP, XIAP, and cIAP1), proliferation (cyclin D1 and c‐Myc), and metastasis (CXCR4) of cancer cells. The spice suppressed the activation of STAT3, and induced the death receptors (DR)4 and DR5. Turmeric enhanced the production of ROS, and suppressed the growth of tumor cell lines. Furthermore, turmeric sensitized the tumor cells to chemotherapeutic agents capecitabine and taxol. Turmeric was found to be more potent than pure curcumin for cell growth inhibition. Turmeric also inhibited NF‐κB activation induced by RANKL that correlated with the suppression of osteoclastogenesisConclusion Our results indicate that turmeric can effectively block the proliferation of tumor cells through the suppression of NF‐κB and STAT3 pathways.
Wheat gliadins modified by deamidation are more efficient than native gliadins in inducing a Th2 response in Balb/c mice experimentally sensitized to wheat allergens
Authors: Gourbeyre Pascal , Denery‐Papini Sandra , Larré Colette , Gaudin Jean‐Charles , Brossard Chantal , Bodinier Marie 
Published: December 2011

Scope: Wheat gluten proteins such as gliadins constitute major food allergens. Gluten can be modified industrially by deamidation which increases its solubility and enhances its use as a food ingredient. Sensitization to deamidated gluten has been reported to cause severe allergic reactions with anaphylaxis. The aim of this study was therefore to compare the sensitization and elicitation potentials of native (NG) and deamidated (DG) gliadins. The reactivity pattern of mice IgE was also compared with that of DG‐allergic patients.Methods and results: The ability of DG to sensitize Balb/c mice using intra‐peritoneal administration with aluminium hydroxide as an adjuvant, and to elicit an allergic response after a challenge, was tested in comparison with NG. Mice sensitized with DG secreted higher levels of total IgE, IL‐4, gliadin‐specific IgE and IgG1 than mice sensitized with NG. By contrast, mice sensitized with NG produced higher levels of gliadin‐specific IgG2a and INFγ. After a challenge, histamine levels were higher in mice sensitised with DG.Conclusions: DG can sensitize mice much more efficiently than NG. Moreover, this mouse model of allergy to DG revealed an IgE reactivity pattern against purified gliadins which was very similar to that of DG‐allergic patients.
Acute effect of whey peptides upon blood pressure of hypertensive rats, and relationship with their angiotensin‐converting enzyme inhibitory activity
Authors: Tavares Tânia , Sevilla María‐Ángeles , Montero María‐José , Carrón Rosalía , Malcata F. Xavier 
Published: December 2011

Scope: The aim of this study was to investigate the antihypertensive effect of a peptide fraction (PepC) obtained from a whey protein concentrate following hydrolysis by Cynara cardunculus, as well as of its fraction with MW below 3 kDa (PepCF). Both these concentrates encompassed peptides that exhibited potent in vitro inhibition of angiotensin‐converting enzyme (ACE): two were released from α‐lactalbumin – KGYGGVSLPEW and DKVGINYW, and one from β‐lactoglobulin – DAQSAPLRVY.Methods and results: Upon oral administration, by gastric intubation, of 400 mg/kg body weight (bw) of those peptide concentrates, or 5 mg/kg bw of the corresponding synthetic peptides, to 12 wk‐old spontaneously hypertensive rats (SHR), the systolic and diastolic blood pressures were monitored by the tail‐cuff method – before, and 2, 4, 6, 8 and 24 h afterwards. Water and zofenopril (5 mg/kg bw) – a known ACE‐inhibitor, were used as negative and positive controls, respectively. Acute administration of PepC, PepCF, KGYGGVSLPEW, DKVGINYW and DAQSAPLRVY caused antihypertensive effects in SHR; the maximum effect occurred by 4 h and 6 h after administration of the peptide concentrates and the synthetic peptides, respectively. PepC and KGYGGVSLPEW also showed ACE‐inhibitory activity in vivo: the pressor effect of angiotensin I was significantly lower, and the response to bradykinin increased when the rats were pre‐treated with either product.Conclusion: Our results strongly suggest that PepC will be effective as nutraceutical ingredient for the formulation of functional foods aimed at hypertension control.
A preconditioned block Arnoldi method for large Sylvester matrix equations
Authors: Bouhamidi A. , Hached M. , Heyouni M. , Jbilou K. 
Published: December 2011

SUMMARYIn this paper, we propose a block Arnoldi method for solving the continuous low‐rank Sylvester matrix equation AX + XB = EFT. We consider the case where both A and B are large and sparse real matrices, and E and F are real matrices with small rank. We first apply an alternating directional implicit preconditioner to our equation, turning it into a Stein matrix equation. We then apply a block Krylov method to the Stein equation to extract low‐rank approximate solutions. We give some theoretical results and report numerical experiments to show the efficiency of this method. Copyright © 2011 John Wiley & Sons, Ltd.
A longitudinal study of families with technology‐dependent children
Authors: Toly Valerie Boebel , Musil Carol M. , Carl John C. 
Published: December 2011

AbstractFew researchers have longitudinally examined families caring for technology‐dependent children at home. We tested a theoretically and empirically based conceptual model by examining family functioning and normalization in 82 mothers (female primary caregivers) twice over 12 months. Time 1 and Time 2 cross‐sectional findings were consistent; the only predictor of family functioning was mothers' depressive symptoms. Contrary to the proposed model, normalization, caregiving duration, and home nursing hours were not directly related to family functioning. Baseline family functioning significantly predicted future family functioning. Also, mothers whose children were no longer technology‐dependent at Time 2 reported significant improvements in family functioning and normalization. An intervention to address high levels of depressive symptoms of these mothers is essential to optimizing family functioning. © 2011 Wiley Periodicals, Inc. Res Nurs Health 35:40–54, 2012
Effect of bilayered stearate ion‐modified MgAl layered double hydroxide on the thermal and mechanical properties of silicone rubber nanocomposites
Authors: Pradhan Bratati , Srivastava Suneel Kumar , Bhowmick Anil Kumar , Saxena Anubhav 
Published: December 2011

AbstractThe homogeneous dispersion of nanofillers in polymer matrices to form polymer nanocomposites remains a challenge in the development of high‐performance polymer materials for various applications. In the work reported, a stearate ion‐modified MgAl layered double hydroxide (St‐LDH) as nanofiller was incorporated in a silicone rubber (SR) matrix by solution intercalation and subsequently characterized. X‐ray diffraction and transmission electron microscopy studies confirm the formation of a predominantly exfoliated dispersion of St‐LDH layers of 75–100 nm in width and about 1–2 nm in thickness in the SR. Thermogravimetric analysis shows that the thermal degradation temperature of the exfoliated SR/St‐LDH (1 wt%) nanocomposites is about 80 °C higher than that of pure SR. Differential scanning calorimetric studies indicate that the melting and crystallization temperatures are higher by 4 and 10 °C for 5 and 8 wt% St‐LDH‐loaded SR nanocomposites compared to neat SR. A significant improvement of 97% in tensile strength and 714% in storage modulus and a reduction of 82% in oxygen permeability have been achieved at 3 wt% St‐LDH loading in SR. Copyright © 2011 Society of Chemical Industry
Skewered reactions in free‐radical crosslinking (co)polymerizations of liquid polybutadiene as internal olefinic multivinyl crosslinker
Authors: Matsumoto Akira , Tani Taisuke , Aota Hiroyuki , Fushihara Kazuhisa , Yamada Mikio 
Published: December 2011

AbstractAs an extension of our continuing studies concerned with the mechanistic discussion of network formation in the free‐radical crosslinking (co)polymerization of multivinyl monomers, this work refers to the skewered reactions in the crosslinking (co)polymerizations of liquid polybutadiene rubber (LBR) as an internal olefinic multivinyl monomer or crosslinker, especially focused on the competitive occurrence of both addition or skewered reaction to internal carbon–carbon (CC) double bonds and abstraction reaction of allylic hydrogens in LBR by growing polymer radical. Thus, LBR is regarded as an internal olefinic multiallyl monomer‐linked allyl groups (CHCHCH2) with methylene units (CH2). First, gelation in the polymerization of LBR was explored in detail, especially at elevated temperatures. The occurrence of intermolecular crosslinking was easier in the order LBR > LBR containing 20 mol % of 1,2‐structural units > liquid polyisoprene rubber. Then, we pursued the polymerization of LBR using dicumyl peroxide (DCPO) as typical organic peroxide used at elevated temperatures. The primary cumyloxy radical generated by the thermal decomposition of DCPO may add to CC double bond or abstract allylic hydrogen or undergo β‐scission to generate a secondary methyl radical. The initiation by the cumyloxy radical was omitted. The ratio of allylic hydrogen abstraction to β‐scission reaction was estimated; thus, only 39% of cumyloxy radical was used for the allylic hydrogen abstraction reaction. The addition of methyl radical to CC double bond was clearly observed. Finally, we pursued the intermolecular and intramolecular skewered reactions in free‐radical crosslinking LBR/vinyl pivalate copolymerizations. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012
A series of furan‐aromatic polyesters synthesized via direct esterification method based on renewable resources
Authors: Jiang Min , Liu Qian , Zhang Qiang , Ye Chong , Zhou Guangyuan 
Published: December 2011

AbstractA series of furan‐aromatic polyesters were successfully synthesized via direct esterification method starting from 2,5‐furandicarboxylic acid, ethylene glycol, 1,3‐propanediol, 1,4‐butanediol, 1,6‐hexanediol, and 1,8‐octanediol and characterized by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy (1H NMR), X‐ray diffraction (XRD), differential scanning calorimeter (DSC), thermogravimetric analysis (TGA), dynamic mechanical analysis (DMA), tensile tests, and so on. The preliminary evidence clearly showed that direct esterification method was rewarding and worthy to synthesize these furan‐aromatic polyesters. The densities of furan‐aromatic polyesters were ranging from 1.19 to 1.38 kg/m3. The FTIR and 1H NMR confirmed their expected structures in detail. The results of XRD showed that these furan‐aromatic polyesters were crystalline polyesters. The results of DSC, TGA, DMA, and tensile tests showed that they behaved as thermoplastic polyester, had satisfactory thermal and mechanical properties, and their thermal stabilities were quite similar to that of corresponding benzene‐aromatic polyesters. The results of contact angle measurement showed that they were hydrophilic. The properties above showed that furan‐aromatic polyesters based on renewable resources could be a viable alternative to their successful petrochemical benzene‐aromatic counterpart. Furthermore, they could be used as biopolymer materials according their satisfactory thermal and mechanical properties and hydrophilicity in the future. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012
‘Open Window’: a randomized trial of the effect of new media art using a virtual window on quality of life in patients' experiencing stem cell transplantation
Authors: McCabe Catherine , Roche Denis , Hegarty Fran , McCann Shaun 
Published: December 2011

AbstractObjectivesTo measure the psychological effect of an art intervention on hospitalized patients and explore benefits to their quality of life.MethodsWe conducted a large prospective randomized trial between July 2006 and August 2009 of an art intervention, Open Window (OW), in patients undergoing stem cell transplantation for a hematological malignancy compared with a control group. The primary endpoint measured the effect of an art intervention on levels of anxiety, depression, and stress using the Hospital Anxiety and Depression Scale and the Distress Thermometer. The secondary endpoint measured the influence of OW on patients' experiences of stem cell transplantation using the OW survey and expectations questionnaires.ResultsOf the 199 patients in the study, 96 were randomized to the intervention group and 103 to the control group. Participants in the intervention group had significantly reduced levels of anxiety on the day before transplant (p = 0.001), at day 7 (p = 0.041), and day 60 (p = 0.035). There was a significant reduction in depression before transplant (p = 0.022). Participants in the intervention group reported better experiences (p < 0.005). Qualitative data showed that those in the intervention group commented freely on their likes and dislikes about OW and how it made them feel.ConclusionAn art intervention, OW, had a positive influence on health‐related quality of life and patients' experiences of having a stem cell transplant. Copyright © 2011 John Wiley & Sons, Ltd.
Nano Aluminum Energetics: The Effect of Synthesis Method on Morphology and Combustion Performance
Authors: Yarrington Cole D. , Son Steven F. , Foley Timothy J. , Obrey Stephen J. , Pacheco Adam N. 
Published: December 2011

AbstractNanoscale aluminum based energetic composites were prepared using polytetrafluoroethylene (PTFE) as an oxidizer, and optimized according to the maximum experimentally observed flame propagation rate in an instrumented burn tube. Optimization of the aluminum‐based composites was performed using nanometric aluminum from two manufacturers, Argonide Corporation and Novacentrix, and the combustion results represent the first direct comparison of these two materials in a burn tube configuration. Argonide aluminum was found to consist of many fused spheres of nano aluminum mixed with some larger micron sized particles. Novacentrix aluminum consisted of spherical particles with a closer particle size distribution. The propagation rate optimized wt.‐% aluminum powder values were 50 and 44.5 for Novacentrix and Argonide, respectively. At the optimized conditions, the time to steady propagation for both Argonide and Novacentrix were similar, however the startup time for the Novacentrix based mixtures was more sensitive to changes in the mixture ratio. The presence of micron sized aluminum and lower surface area, but higher active content in the Argonide mixtures resulted in lower propagation rates, pressurization rates and peak pressures but higher total impulse values. It was found that peak pressure is not the sole determining factor in propagation rate, but the highest pressurization rates correlate with propagation rate.