bluuebunny/crossref_metadata_2025_split huggingface dataset:
Crossing the Boundaries of Privacy in Accidental Encounters: Interpretative Phenomenological Analysis of Therapists' Experiences
Authors: Pietkiewicz Igor J. , Włodarczyk Monika 
Published: October 2014

This qualitative study explores psychodynamic therapists' experiences associated with unexpected encounters with their patients outside the clinical setting. Information was collected using a semi‐structured interview protocol from 10 experienced practitioners in Poland and examined according to the interpretative phenomenological analysis principles. Four overarching themes are discussed in the paper. Results show that accidental encounters often challenged practitioners' privacy, led to involuntary self‐disclosure (causing discomfort and distress) and required re‐negotiating roles and boundaries in the new context. Various coping strategies were also identified and analysed, including withdrawal, anticipation and avoidance, as well as using community support. Findings are discussed in terms of their implications for mental health professionals and psychotherapy training. Copyright © 2014 John Wiley & Sons, Ltd.Key Practitioner Message

All people manage their boundaries of privacy. Therapists should thoroughly consider circumstances, and personal or situational risk factors, which lead to crossing or violating these boundaries. They need to reflect upon the social and personal limitations associated with their occupation and the price they have to pay for the high status role.
Perfluorinated Ionomer‐Enveloped Sulfur Cathodes for Lithium–Sulfur Batteries
Authors: Song Jongchan , Choo Min‐Ju , Noh Hyungjun , Park Jung‐Ki , Kim Hee‐Tak 
Published: October 2014

AbstractNafion is known to suppress the polysulfide (PS) shuttle effect, a major obstacle to achieving high capacity and long cycle life for lithium–sulfur batteries. However, elaborate control of the layer’s configuration is required for high performance. In this regard, we designed a Nafion‐enveloped sulfur cathode, where the Nafion layer is formed on the skin of the cathode, covering its surface and edge while not restricting the porosity. Discharge capacity and efficiency were enhanced with the enveloping configuration, demonstrating suppression of shuttle. The edge protection exhibited better cycling stability than an edge‐open configuration. In the absence of the Nafion envelope, charged sulfur concentrated on the top region of the cathode because of the relatively lower PS concentration at the cathode surface. Surprisingly, for the Nafion‐enveloped cathode, sulfur was evenly distributed along the cathode, indicating that the configuration imparts a uniform PS concentration within the cathode.
Theory on resistance of m × n cobweb network and its application
Authors: Tan Zhi‐Zhong 
Published: October 2014

SummaryA basic theorem of equivalent resistance between two arbitrary nodes in an m × n cobweb network in both finite and infinite conditions is discovered, and two conjectures on the equivalent resistance are proved in terms of the basic theorem. We built a tridiagonal matrix equation by means of network analysis and made a diagonalization method of matrix transformation and work out its explicit expressions. The new formulae obtained here can be effectively applied in complex impedance network, especially the formulation leads to the occurrence of resonances and a series of novel results in RLC (denote resistor, inductance and capacitance) network. These curious results suggest the possibility of practical applications to resonant circuits. Copyright © 2014 John Wiley & Sons, Ltd.
Second order mem‐circuits
Authors: Riaza Ricardo 
Published: October 2014

SummaryThis paper presents a comprehensive taxonomy of so‐called second‐order memory devices, which include charge‐controlled memcapacitors and flux‐controlled meminductors, among other novel circuit elements. These devices, which are classified according to their differential and state orders, are necessary to get a complete extension of the family of classical nonlinear circuit elements (resistors, capacitors, and inductors) for all possible controlling variables. Using a fully nonlinear formalism, we obtain nondegeneracy conditions for a broad class of second‐order mem‐circuits. This class of circuits is expected to yield a rich dynamic behavior; in this regard, we explore certain bifurcation phenomena exhibited by a family of circuits including a charge‐controlled memcapacitor and a flux‐controlled meminductor, providing some directions for future research. Copyright © 2014 John Wiley & Sons, Ltd.
1H NMR study of the changes in brine‐ and dry‐salted sea bass lipids under thermo‐oxidative conditions: Both salting methods reduce oxidative stability
Authors: Vidal Natalia P. , Goicoechea Encarnación , Manzanos María J. , Guillén María D. 
Published: October 2014

Farmed European sea bass (Dicentrarchus labrax) fillets were salted by two methods, brine‐ and dry‐salting. Both salted and unsalted fillets were submitted to thermo‐oxidative conditions in order to study the evolution of their lipids and their oxidative stability. Lipids were extracted and studied by proton nuclear magnetic resonance (1H NMR). This technique allowed the evolution of the molar percentages of the different kinds of acyl groups (omega‐3, docosahexaenoic, eicosapentaenoic, diunsaturated omega‐6, and omega‐1) to be followed. In addition, the formation of secondary oxidation compounds, such as aldehydes (alkanals, trans‐2‐alkenals, trans,trans‐2,4‐alkadienals), could be monitored and quantified by means of this technique, providing information about the oxidative status of the sea bass fillets. No primary oxidation compounds were detected. Moreover, the concentrations of 1,2‐diglycerides and phosphatidylcholine were determined. Equations for all the mentioned quantitative determinations were proposed. It was evidenced that the use of salting methods did not provoke the immediate oxidation of sea bass lipids, but reduced their oxidative stability, this effect being more pronounced in dry‐salting. Although oxidation began earlier in brine‐salted samples than it did in unsalted ones, these latter reached a degradation level of a similar order to that of the brine‐salted samples after a certain period of time under the degradative conditions.Practical applications: The results of this study will be useful for optimizing the conditions of European sea bass salting processes, in order to minimize possible lipid oxidation. This is of great importance for sectors of the seafood industry, which focus on this and other fish species with similar lipid content and acyl group proportions, and which are interested in providing high quality food products. The information given by 1H NMR, a rapid and non‐destructive method compared with other conventional chemical ones, is very valuable for other researchers who also study fish lipid oxidation processes.The study of the effect of brine‐ and dry‐salting on the lipid oxidative stability of European sea bass (Dicentrarchus labrax) fillets submitted to thermo‐oxidative conditions (50°C and aeration) was carried out by means of proton nuclear magnetic resonance (1H NMR).
Regulation of sonic hedgehog expression by integrin β1 and epidermal growth factor receptor in intestinal epithelium
Authors: Xu Changxin , Li Xiufen , Topham Matthew K. , Kuwada Scott K. 
Published: October 2014

AbstractWe previously found that conditional deletion of integrin β1 in intestinal epithelium of mice caused early postnatal lethality and intestinal phenotypic changes including excessive proliferation and defective differentiation of intestinal epithelium due to loss of Hedgehog expression. Here, we link these defects to the Hedgehog (Hh) signaling pathway and show that loss of integrin β1 leads to excessive phosphorylation of MEK‐1 and increased expression of ErbB receptors, including the epidermal growth factor receptor (EGFR). We show that increased EGFR signaling attenuates Hh abundance and that an EGFR inhibitor rescues conditional β1 integrin null pups from postnatal lethality. These studies link the loss of Hh expression in the intestinal epithelium of integrin β1‐deficient mice to excessive EGFR/MAPK signaling, and identify a unique mechanism for crosstalk between stromal and epithelial signaling pathways that is critical for intestinal epithelial differentiation and function. © 2014 IUBMB Life, 66(10):694–703, 2014
Texts as Mirrors, Texts as Windows
Authors: Sciurba Katie 
Published: October 2014

AbstractDiscussions of culturally relevant and “boy” literature stress the importance of offering readers occasions tosee themselvesin texts. However, young men of color have had few opportunities within this discourse to reveal their own experiences with literature. Rather than make presumptions about how texts serve as mirrors to them, as members of collective groups, this study examines the ways in which two adolescent Black boys at an urban single‐sex school find relevance in what they read.
Elaidate, an 18‐Carbon Trans‐monoenoic Fatty Acid, but Not Physiological Fatty Acids Increases Intracellular Zn2+ in Human Macrophages
Authors: Zacherl Janelle R. , Tourkova Irina , St. Croix Claudette M. , Robinson Lisa J. , Peck Palmer Octavia M. , Mihalik Stephanie J. , Blair Harry C. 
Published: October 2014

ABSTRACTArtificial trans fatty acids promote atherosclerosis by blocking macrophage clearance of cell debris. Classical fatty‐acid response mechanisms include TLR4‐NF‐κB activation, and Erk1/2 phosphorylation, but these may not indicate long‐term mechanisms. Indeed, nuclear NF‐κB was increased by 60 min treatment by 30 μM of the 18 carbon trans unsaturated fatty acid elaidic acid (elaidate), the physiological cis‐unsaturated fatty acid oleic acid (oleate), and the 18 or 16 carbon saturated fatty acids stearic and palmitic acid (stearate or palmitate). However, except for stearate, effects on related pathways were minimal at 44 h. To determine longer term effects of trans fatty acids, we compared mRNA expression profiles of (trans) elaidate to (cis) oleate, 30 μM, at 44 h in human macrophages. We found that elaidate changed Zn2+‐homeostasis gene mRNAs markedly. This might be important because Zn2+ is a major regulator of macrophage activity. Messenger RNAs of seven Zn2+‐binding metallothioneins decreased 2–4‐fold; the zinc importer SLC39A10 increased twofold, in elaidate relative to oleate‐treated cells. Results were followed by quantitative PCR comparing cis, trans, and saturated fatty acid effects on Zn2+‐homeostasis gene mRNAs. This confirmed that elaidate uniquely decreased metallothionein expression and increased SLC39A10 at 44 h. Further, intracellular Zn2+ was measured using N‐(carboxymethyl)‐N‐[2‐[2‐[2(carboxymethyl) amino]‐5‐(2,7,‐difluoro‐6‐hydroxy‐3‐oxo‐3H‐xanthen‐9‐yl)‐phenoxy]‐ethoxy]‐4‐methoxyphenyl]glycine, acetoxymethyl ester (FluoZin‐3‐AM). This showed that, at 44 h, only cells treated with elaidate had increased Zn2+. The durable effect of elaidate on Zn2+ activation is a novel and specific effect of trans fatty acids on peripheral macrophage metabolism. J. Cell. Biochem. 116: 524–532, 2015. © 2014 Wiley Periodicals, Inc.
Effects of Isophorone Diisocyanate on the Thermal and Mechanical Properties of Shape‐Memory Polyurethane Foams
Authors: Hasan Sayyeda M. , Raymond Jeffery E. , Wilson Thomas S. , Keller Brandis K. , Maitland Duncan J. 
Published: October 2014

Previously developed shape‐memory polymer foams display fast actuation in water due to plasticization of the polymer network. The actuation presents itself as a depression in the glass‐transition temperature when moving from dry to aqueous conditions; this effect limits the working time of the foam to 10 min when used in a transcatheter embolic device. Reproducible foams are developed by altering the chemical backbone, which can achieve working times of greater than 20 min. This is accomplished by incorporating isophorone diisocyanate into the foam, resulting in increased hydrophobicity, glass transitions, and actuation time. This delayed actuation, when compared with previous systems, allows for more optimal working time in clinical applications.
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Geotechnical conditions at the Konrad mine – Excavation of drifts and rooms in squeezing rock / Geotechnische Bedingungen in der Schachtanlage Konrad – Auffahrung von Strecken und Kammern in druckhaftem Gebirge
Authors: Stahlmann Joachim , Missal Christian , Hahn Peter , Edel Thomas 
Published: October 2014

AbstractThe Konrad mine is a former iron ore mine near Salzgitter in Germany. The mine will be rebuilt in the next few years into a repository for low and intermediate level radioactive waste. During this conversion drifts and rooms for operating the repository are extended and newly constructed at shaft 2 on the 2nd floor level (depth 850 m). The planned useful life for the rooms is 40 years. In this period, maintenance‐free operation has to be ensured. The bedrock is characterized by complex geology. In addition, the mudstone layers show partly a squeezing behavior. For the proof of stability and usability, the observation method is applied. Therefor numerical prediction models are necessary, which can reproduce the three dimensional stress redistribution and convergences in the rock mass. These numerical calculations are flanked by an extensive geotechnical measurement program in order to detect the real behavior of the bedrock. The underground support system consists of a slotted lining with sliding anchors in the areas where squeezing rock is present. This allows converging of the bedrock. During the convergence period a bearing ring is formed within the rock mass. Afterwards the final lining is created in reinforced shotcrete. One major issue is the assessment of the convergence period taking into account the numerical prediction model and the measurement program.Die Schachtanlage Konrad ist ein ehemaliges Erzbergwerk bei Salzgitter in Niedersachsen. Das Bergwerk wird in den nächsten Jahren zu einem Endlager für schwach‐ und mittelradioaktive Abfälle umgebaut. Im Zuge dieser Umbaumaßnahmen sollen am Schacht 2 auf der 2. Sohle (Teufe 850 m) Grubenbaue für den Betrieb des Endlagers erweitert und neu aufgefahren werden. Die geplante Nutzungsdauer der Räume beträgt 40 Jahre. Das anstehende Gebirge zeichnet sich durch eine komplexe Geologie aus, die durch Schichtungen und Trennflächen geprägt ist. Zudem zeigen die Tonsteinschichten zum Teil ein druckhaftes Gebirgsverhalten. Für den Nachweis der Standsicherheit und der Gebrauchstauglichkeit kommt die Beobachtungsmethode zum Einsatz. Numerische Prognosemodelle, welche die räumlichen Spannungsumlagerungen und Konvergenzen abbilden können, werden durch ein umfangreiches geotechnisches und markscheiderisches Messprogramm flankiert. Das Ausbaukonzept sieht in den Bereichen mit druckhaftem Gebirge eine geschlitzte Schale mit Gleitankern vor, die planmäßig Konvergenzen zulässt. Dadurch kann sich innerhalb des Konvergenzzeitraums ein Gebirgstragring ausbilden. Erst anschließend wird der endgültige Ausbau mit einer bewehrten Spritzbetonschale erstellt. Eine besondere Herausforderung ergibt sich aus der Abschätzung des Konvergenzzeitraums aus dem Prognosemodell unter Berücksichtigung des Messprogramms.
More than 100 years of tradition and progress – the work of the GDMB through the ages / Mehr als 100 Jahre Tradition und Fortschritt – Die Vereinsarbeit der GDMB im Wandel der Zeit
Authors: Steinbeck Sven , Zuchowski Jürgen 
Published: October 2014

AbstractThis article summarizes how the GDMB (the Society of Metallurgists and Miners) not only passively embraced the necessary changes in the traditionalist and at the same time forward‐looking work of the society, but in many cases actively promoted them, thus enabling it to permanently secure itself an important role. Accordingly, this article provides a detailed account of the historical development of the society, without neglecting to examine the current plans for further development.Der Beitrag fasst zusammen, wie die GDMB (Gesellschaft der Metallurgen und Bergleute e.V.) notwendige Wandlungen in der traditionsbewussten und zugleich zukunftsgerichteten Vereinsarbeit nicht nur passiv annahm, sondern vielfach aktiv vorantrieb und sich so dauerhaft eine gewichtige Rolle zu sichern vermochte. Der Fokus dieses Beitrags liegt entsprechend auf der Darstellung der historischen Entwicklung des Vereins, ohne dabei den Blick auf aktuelle Pläne zur Fortentwicklung auszusparen
In vivo multifrequency magnetic resonance elastography of the human intervertebral disk
Authors: Streitberger Kaspar‐Josche , Diederichs Gerd , Guo Jing , Fehlner Andreas , Hamm Bernd , Braun Jürgen , Sack Ingolf 
Published: October 2014

PurposeTo test in vivo magnetic resonance elastography (MRE) of the human intervertebral disk (IVD).MethodsThe feasibility of MRE in IVD was demonstrated in ex vivo bovine disks. Sixteen asymptomatic volunteers underwent multifrequency MRE of the lumbar spine (IVD L3/4 and L4/5, n = 32) using a posterior plate transducer connected to a loudspeaker and operated at five frequencies from 50 to 70 Hz. Full wave field data were acquired in 10 transverse slices of 2 × 2 × 2 mm3 resolution. High‐resolution maps of magnitude |G*| and phase angle φ of complex shear modulus G* were generated by multifrequency dual elasto visco (MDEV) inversion. Disk morphology was assessed by the Pfirrmann score (Pf).ResultsMorphological Pf was 1 in 25, 2 in 3, and 3 in 4 disks. |G*| decreased with Pf by a Pearson's linear correlation coefficient of R = −0.592 (P = 0.0004), while φ remained unchanged. Group mean mechanical parameters for Pf = 1 to 3 were |G*| = 6.51 ± 1.27, 5.29 ± 0.95, 4.03 ± 0.99 kPa, and φ = 1.190 ± 0.181, 1.170 ± 0.156, 1.088 ± 0.084 rad, respectively (p[Pf1‐Pf3] < 0.001). The variability of mechanical parameters in one volunteer including diurnal changes was approximately 11%.ConclusionMultifrequency MRE with MDEV inversion allows measurement of in vivo mechanical properties of IVDs and may provide additional information in disc degeneration beyond standard morphological changes. Magn Reson Med 74:1380–1387, 2015. © 2014 Wiley Periodicals, Inc.
The biofeedback treatment for non‐monosymptomatic enuresis nocturna
Authors: Ebiloglu Turgay , Ergin Giray , Irkilata Hasan Cem , Kibar Yusuf 
Published: October 2014

AimsEnuresis is a child older than 5 years wetting in discrete portions during sleep. It has two subgroups: monosymptomatic enuresis nocturna (MSEN) and non‐monosymptomatic enuresis nocturna (NMSEN). In this research, we specifically aimed to examine the effect of biofeedback in NMSEN.MethodsWe retrospectively analyzed the hospital records of 182 children with NMSEN who were refractory to urotherapy modifications and directed to biofeedback therapies between 2005 and 2010. Enuresis before and after biofeedback therapies was evaluated. One or less enuretic night in a month was defined as success.ResultsThere were 118 (64%) girls and 64 (35%) boys. With biofeedback therapy, 117 of 182 patients recovered with a success rate of 64% (P < 0.001), but 65 patients still had enuresis. Seventy‐two out of 118 girls recovered with a success rate of 61% (P < 0.001), whereas 45 out of 64 boys recovered with a success rate of 70% (P = 0.001). The NMSEN complaints of daytime incontinence, dysuria, urgency, holding maneuvers, and urgency incontinence disappeared significantly concomitant to the enuresis component, as well (P < 0.05).ConclusionsBiofeedback therapy is an effective treatment option for the enuresis component of NMSEN with a 64% success rate. Neurourol. Urodynam. 35:58–61, 2016. © 2014 Wiley Periodicals, Inc.
Curing of Glycidyl Azide Polymer (GAP) Diol Using Isocyanate, Isocyanate‐Free, Synchronous Dual, and Sequential Dual Curing Systems
Authors: Hagen Trond H. , Jensen Tomas L. , Unneberg Erik , Stenstrøm Yngve H. , Kristensen Tor E. 
Published: October 2014

AbstractGlycidyl azide polymer (GAP) is an important energetic binder candidate for new minimum signature solid composite rocket propellants, but the mechanical properties of such GAP propellants are often limited. The mechanical characteristics of composite rocket propellants are mainly determined by the nature of the binder system and the binder‐filler interactions. In this work, we report a detailed investigation into curing systems for GAP diol with the objective of attaining the best possible mechanical characteristics as evaluated by uniaxial tensile testing of non‐plasticized polymer specimens. We started out by investigating isocyanate and isocyanate‐free curing systems, the latter by using the crystalline and easily soluble alkyne curing agent bispropargylhydroquinone (BPHQ). In the course of the presented study, we then assessed the feasibility of dual curing systems, either by using BPHQ and isophorone diisocyanate (IPDI) simultaneously (synchronous dual curing), or by applying propargyl alcohol and IPDI consecutively (sequential dual curing). The latter method, which employs propargyl alcohol as a readily available and adjustable hydroxyl‐telechelic branching agent for GAP through thermal triazole formation, gave rise to polymer specimens with mechanical characteristics that compared favorably with the best polymer specimens obtained from GAP diol and mixed isocyanate curatives. The glass transition temperature (Tg) of non‐plasticized samples was heightened when triazole‐based curing agents were included, but when plasticized with nitratoethylnitramine (NENA) plasticizer, Tg values were very similar, irrespective of the curing method.
Role of active‐site residues Tyr55 and Tyr114 in catalysis and substrate specificity of Corynebacterium diphtheriae C‐S lyase
Authors: Astegno Alessandra , Allegrini Alessandra , Piccoli Stefano , Giorgetti Alejandro , Dominici Paola 
Published: October 2014

ABSTRACTIn recent years, there has been increased interest in bacterial methionine biosynthesis enzymes as antimicrobial targets because of their pivotal role in cell metabolism. C‐S lyase from Corynebacterium diphtheriae is a pyridoxal 5′‐phosphate‐dependent enzyme in the transsulfuration pathway that catalyzes the α,β‐elimination of sulfur‐containing amino acids, such as l‐cystathionine, to generate ammonia, pyruvate, and homocysteine, the immediate precursor of L‐methionine. In order to gain deeper insight into the functional and dynamic properties of the enzyme, mutants of two highly conserved active‐site residues, Y55F and Y114F, were characterized by UV‐visible absorbance, fluorescence, and CD spectroscopy in the absence and presence of substrates and substrate analogs, as well as by steady‐state kinetic studies. Substitution of Tyr55 with Phe apparently causes a 130‐fold decrease in
at pH 8.5 providing evidence that Tyr55 plays a role in cofactor binding. Moreover, spectral data show that the mutant accumulates the external aldimine intermediate suggesting that the absence of interaction between the hydroxyl moiety and PLP‐binding residue Lys222 causes a decrease in the rate of substrate deprotonation. Mutation of Tyr114 with Phe slightly influences hydrolysis of l‐cystathionine, and causes a change in substrate specificity towards l‐serine and O‐acetyl‐l‐serine compared to the wild type enzyme. These findings, together with computational data, provide useful insights in the substrate specificity of C‐S lyase, which seems to be regulated by active‐site architecture and by the specific conformation in which substrates are bound, and will aid in development of inhibitors. Proteins 2015; 83:78–90. © 2014 Wiley Periodicals, Inc.