bluuebunny/crossref_metadata_2025_split huggingface dataset:
Lessons learned: Impact of a continence promotion activity for older community‐dwelling women
Authors: Tannenbaum C. , Drali R. , Holroyd‐Leduc J. , Richard L. 
Published: August 2009

AbstractAimsFew studies have documented the effectiveness of continence promotion programs targeting older incontinent women. We sought to evaluate the impact of an interactive continence workshop on changing participants' attitudes, knowledge and skills in relation to self‐managing or seeking care for incontinence.MethodsA quasi‐experimental prospective cohort study with repeated measures was carried out on a population of 90 incontinent women aged 55–87 participating in a continence promotion workshop. Inclusion criteria were a weekly average of one or more episodes of involuntary urine loss during the preceding 3 months and having never sought help for this problem. Incontinence‐related knowledge, attitudes, skills and intentions for seeking care were assessed immediately prior and subsequent to the workshop. Three‐ and 6‐month telephone follow‐ups were conducted to determine rates of healthcare seeking and reasons for not seeking care.ResultsImprovements in incontinence‐related knowledge and attitudes occurred in up to 94% participants. Forty‐three percent of the study participants initiated and were satisfied with self‐treatment, and an additional 42% consulted a health care professional.ConclusionInteractive continence workshops promote self‐management and consultation seeking among older women with incontinence. Further testing of different strategies for promoting continence awareness needs to occur in larger studies with more sensitive instruments, a control group, and better specification of the goals, process and outcomes of the health promotion activity being tested. Neurourol. Urodynam. 29:540–544, 2010. 2010. Copyright © 2009 Wiley‐Liss, Inc.
Urodynamic effects of silodosin, a new α1A‐adrenoceptor selective antagonist, for the treatment of benign prostatic hyperplasia
Authors: Yamanishi Tomonori , Mizuno Tomoya , Tatsumiya Katsuhisa , Watanabe Miho , Kamai Takao , Yoshida Ken‐Ichiro 
Published: August 2009

AbstractAimsTo investigate urodynamically the effects of silodosin, a new α1A‐adrenoceptor‐selective antagonist, in the treatment of benign prostatic hyperplasia (BPH).MethodsThirty six male patients with BPH (69.9 ± 7.3 years), who were referred as candidates for surgery, were treated with silodosin (4 mg twice daily). The total International Prostate Symptom Score (IPSS) was 20.7 ± 7.4, maximum flow rate (Qmax) was 6.7 ± 3.0 ml/sec, and prostate volume was 45.6 ± 24.5 ml.ResultsTotal IPSS, storage and voiding symptom subscores and QOL score decreased significantly, and Qmaxincreased significantly after 1–12 months of therapy (allP < 0.05). In urodynamic study (n = 29), maximum cystometric capacity increased significantly (P = 0.0027), and detrusor overactivity disappeared in 8 of 20 patients (40%) and improved (bladder capacity increased more than 50%) in 7 (35%) after the therapy. In pressure/flow studies (n = 27), the obstruction grade was improved in 15 patients (56%). Detrusor opening pressure, detrusor pressure at Qmax, bladder outlet obstruction index, and Schäfer's obstruction class decreased significantly after therapy (allP < 0.01). After 12 months, 16 patients (44%) are still on silodosin for 23.3 ± 7.0 (range 12–36) months, and the improvements in IPSS and Qmaxwere stable. Twenty patients withdrew because of insufficient effectiveness in 13 patients (12 patients underwent surgery), side effects in 3, and unknown reasons in 4.ConclusionSilodosin appears to improve detrusor overactivity and obstruction grade in patients with BPH. With silodosin treatment, LUTS could be managed effectively for more than a year in at least 44% of the patients. Neurourol. Urodynam. 29:558–562, 2010. © 2009 Wiley‐Liss, Inc.
Costs of pediatric allogeneic hematopoietic‐cell transplantation
Authors: Majhail Navneet S. , Mothukuri Jaya M. , MacMillan Margaret L. , Verneris Michael R. , Orchard Paul J. , Wagner John E. , Weisdorf Daniel J. 
Published: August 2009

AbstractBackgroundAllogeneic hematopoietic‐cell transplantation (HCT), although curative for some high‐risk diseases, is a complex and costly procedure. The costs of transplantation among children have not been described previously.ProcedureWe compared the costs of HCT within the first 100‐days among children who received myeloablative HCT from either a matched related donor (MRD, N = 27), matched unrelated donor (MUD, N = 28) or unrelated umbilical cord blood (UCB, N = 91). We also conducted analyses to describe predictors of higher costs of transplantation.ResultsThe 100‐day probabilities of overall survival were 96%, 96% and 87% for MRD, MUD and UCB, respectively. The mean cost per day survived (excluding costs of graft acquisition) was $3,446 (standard deviation (SD), $851) for MRD, $4,050 (SD, $1,194) for MUD and $4,522 (SD, $2,053) for UCB recipients. The costs of MUD and UCB HCT remained similar when costs of graft acquisition were considered within total costs of transplantation. In multivariable analysis, adjusting for important patient, disease, and transplant related characteristics, factors associated with higher costs within the first 100‐days were HCT using MUD or UCB, Lansky score <90 at transplant, graft failure, need for dialysis, need for mechanical ventilation and occurrence of hepatic veno‐occlusive disease.ConclusionsWithin the first 100‐days, the costs of MUD and UCB HCT are similar, while MRD HCT is less costly. These costs are primarily driven by severe post‐transplant complications and graft failure. Pediatr Blood Cancer 2010; 54:138–143. © 2009 Wiley‐Liss, Inc.
Quantitative DY‐maleimide‐based proteomic 2‐DE‐labeling strategies using human skin proteins
Authors: Dietz Lisa , Bosque Alberto , Pankert Patrick , Ohnesorge Stefanie , Merz Patrick , Anel Alberto , Schnölzer Martina , Thierse Hermann‐Josef 
Published: August 2009

AbstractSensitive differential proteomic analysis is challenging and often limited by distinct labeling or tagging strategies. In this study, we have examined the sensitivity, linearity, and photophysical properties of novel protein labeling DY‐maleimide dyes (DY‐505‐MAL, DY‐555‐MAL and DY‐635‐MAL). All MS compatible DY‐maleimide dyes exhibited excellent emission spectra, high sensitivity, and high linearity, when applied to standard 1‐DE protein analysis. Correspondingly, 2‐DE analysis of DY‐635‐MAL or DY‐505‐MAL maximal‐labeled human keratinocyte proteins displayed remarkably high sensitivity. Compared with a standard fluorescent protein stain, DY‐635‐MAL or DY‐505‐MAL 2‐DE analysis demonstrated equally high spot quality with an overall increase in the number of spots detectable (up to threefold higher;>1000 spots/gel). However, as determined with a FLA‐5100 imaging system, comparative MultiGauge, and Delta2D analysis, not all DY‐maleimide dyes possessed DIGE compatible fluorescent emission properties. However, DY‐505‐MAL and DY‐635‐MAL were found to be suitable for more complex, time and gel intensive, focused multiplexing analyses. Notably – as demonstrated with allergen‐stimulated human skin proteins – defined, singular DY‐maleimide dye protein labeling (SDPL) allows high quality, time saving, simple, and reliable differential proteomic examination.
Preferential mode of cyclization of tetrahydrofuran amino acids containing peptides: some theoretical insights
Authors: Kumar N. V. Suresh , Sharma Purshotam , Singh Harjinder , Koley Dipankar , Roy Saumya , Chakraborty Tushar Kanti 
Published: August 2009

AbstractTheoretical insights have been provided for the observed preference of cyclodimerization over intramolecular cyclization reactions in linear tripeptides containing “2,5‐cis” (2S,5R)‐tetrahydrofuran amino acid as well as in those containing “2,5‐trans” (2S,5S)‐tetrahydrofuran amino acid, using quantum chemical methods. The geometries of species involved as well as the feasibility of cyclization reactions are studied at the B3LYP/6‐31G(d,p) level of theory in gas phase as well as in solvent phase. Thermodynamic data from Hessian calculations favor the intermolecular cyclization. Analysis of optimized geometries reveals the existence of additional stabilizing hydrogen bonding interactions in intermolecularly cyclized products. The existence of these second‐order interactions is substantiated by topological (atoms in molecules (AIM)) and natural bond orbital (NBO) analyses. Such interactions are absent in the intramolecular cyclization products. Further justification for the presence of stabilizing interactions in intermolecularly cyclized products comes from the molecular electrostatic potentials and electron density surfaces. Kinetic control favoring the intermolecularly cyclized products due to additional entropy of activation in the intramolecular case is surmised. Copyright © 2009 John Wiley & Sons, Ltd.
Earthworm inspired locomotive motion from fast swelling hybrid hydrogels
Authors: Arora Hitesh , Malik Rahul , Yeghiazarian Lilit , Cohen Claude , Wiesner Ulrich 
Published: August 2009

AbstractDiverse motion mechanisms encountered in nature serve successfully as a guide for engineering efficient mobile devices used in cargo transport and force generation. We have previously demonstrated earthworm locomotion inspired directed motion and cargo transport using a pNIPA hydrogel‐based device. The motility mechanism involved sequential shrinking and swelling of segments of a long gel in a glass capillary, induced by volume phase transitions, through a simple temperature stimulus using peltier elements. The same effect is generated in the earthworm by flexing and stretching muscles along the body as it moves in its underground burrow. The shrinking segments move the body forward while the swollen segments anchor against the walls to prevent slippage. Here, we show an improved device, using the same working principle, made of super‐porous, mechanically robust organic‐inorganic hybrid hydrogels (also known as nanocomposite hydrogels), which show large volume phase transitions above 32 °C without requiring lengthy hydrolysis times. The gels demonstrate fast swelling kinetics with complete restoration of their initial size in short times, making the gels reusable for multiple cycles. This improved device, with its reusability, fast swelling kinetics, and efficient slip‐free motion, opens a variety of possibilities for applications in microfluidics, nanobiotechnology, small‐scale robotics, and micro electro mechanical systems. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 5027–5033, 2009
Water‐soluble anionic conjugated polymers for metal ion sensing: Effect of interchain aggregation
Authors: Chen Yi , Pu Kan‐Yi , Fan Qu‐Li , Qi Xiao‐Ying , Huang Yan‐Qin , Lu Xiao‐Mei , Huang Wei 
Published: August 2009

AbstractThree sulfonato‐containing fluorene‐based anionic water‐soluble conjugated polymers, which are specially designed to link fluorene with alternating moieties such as bipyridine (P1), pyridine (P2), and benzene (P3) have been synthesized via the Pd‐catalyzed Sonogashira‐coupling reaction, respectively. These polymers had good solubility in water and showed different responses for transition metal ions with different valence in aqueous environments: the fluorescence of bipyridine‐containing P1 can be completely quenched by addition of all transition metal ions selected and showed a good selectivity for Ni2+; the pyridine‐containing P2 had a little response for monovalent and divalent metal ions while showed good quenching with the addition of trivalent metal ions (with a special selectivity for Fe3+); P3 had responses only for the trivalent metal ions within the ionic concentration we studied. After investigation of the UV‐vis absorption spectra, PL emission spectra, DLS, and fluorescence lifetime of P1–P3 in aqueous solution when adding transition metal ions, we found that the different spectrum responses of these polymers are attributed to the different coordination ability of the units linked with fluorene in the main chain. The energy or electron‐transfer reactions were the main reason for fluorescence quenching of P1 and P2. On the other hand, interchain aggregation caused by trivalent metal ions lead to fluorescence quenching for P3 and also caused partly fluorescence quenching of P1 and P2. These results revealed the origin of ionochromic effects of these polymers and suggested the potential application for these polymers as novel chemosensors with higher sensing sensitivity in aqueous environments. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 5057–5067, 2009
New associative EHEC‐g‐PAam copolymers: Their syntheses, characterization, and rheological behavior
Authors: Hiltunen Miia , Riihelä Simon , Maunu Sirkka Liisa 
Published: August 2009

AbstractThe syntheses and rheological behavior of ethyl hydroxyethyl cellulose (EHEC)‐based graft‐copolymers were studied. Copolymers were prepared by grafting EHEC with acrylamide (Aam) via reversible addition fragmentation chain transfer (RAFT) polymerization. Hydroxyl groups of EHEC were esterified with a carboxylic acid functional chain transfer agent (CTA) to prepare EHEC‐macroCTAs with different degrees of substitution. EHEC‐macroCTAs were characterized by ATR‐FTIR, 13C NMR, and SEC, and elemental analysis was used to quantify the degree of CTA substitution. EHEC‐macroCTAs with different degrees of substitution were copolymerized with acrylamide by “grafting from” technique. Formation of new cellulose‐based copolymers was comprehensively confirmed by 1H NMR, ATR‐FTIR, and SEC measurements. Further, the associations of EHEC‐g‐PAam copolymers in water were studied at various concentrations and temperatures by means of UV–vis spectroscopy, fluorescence spectroscopy, and rheological measurements. The results indicate that copolymers have both intra and intermolecular association in water depending on the amount of grafts. © 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 1869–1879, 2009
Phase morphology and mechanical properties of the electrospun polyoxymethylene/polyurethane blend fiber mats
Authors: Peng Pan , Chen Yi‐Zhang , Gao Yan‐Fang , Yu Jian , Guo Zhao‐Xia 
Published: August 2009

AbstractPolyoxymethylene/thermoplastic polyurethane (POM/TPU) blends containing 10–30 wt % of TPU were electrospun using hexafluoroisopropanol as the solvent. The average fiber diameter increases with the increase in TPU content from 0.68 μm for neat POM fibers to 0.92 μm for POM/TPU 7:3 blend fibers due to the increase in solution viscosity. Core/sheath structure with the major component POM as the core and the minor component TPU as the sheath was observed by transmission electron microscopy and further confirmed by surface N contents of the blend fiber mats. The crystalline melting point and the degree of crystallinity of POM have no obvious change by coelectrospinning with TPU due to lack of interaction between POM and TPU as revealed by Fourier transform infrared spectroscopy. Tensile tests showed that the unusual high ductility of POM fiber mat could be further increased by coelectrospinning with 10 or 20 wt % TPU without significantly decreasing the stiffness and strength. © 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 1853–1859, 2009
Preparation and characterization of epoxy/polyhedral oligomeric silsesquioxane hybrid nanocomposites
Authors: Huang Jieh‐Ming , Huang Hui‐Ju , Wang Yu‐Xiang , Chen Wen‐Yi , Chang Feng‐Chih 
Published: August 2009

AbstractWe have prepared epoxy/polyhedral oligomeric silsesquioxane (POSS) nanocomposites by photopolymerization from octakis(glycidylsiloxy)octasilsesquioxane (OG) and diglycidyl ether of bisphenol A. We used nuclear magnetic resonance, Raman, and Fourier transform infrared spectroscopies to characterize the chemical structure of the synthetic OG. Differential scanning calorimetry and dynamic mechanical analysis (DMA) revealed that the nanocomposites possessed higher glass transition temperatures than that of the pristine epoxy resin. Furthermore, DMA indicated that all of the nanocomposites exhibited enhanced storage moduli in the rubbery state, a phenomenon that we ascribe to both the nano‐reinforcement effect of the POSS cages and the additional degree of crosslinking that resulted from the reactions between the epoxy and OG units. Thermogravimetric analysis revealed that the thermal stability of the nanocomposites was better than that of the pristine epoxy. © 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 1927–1934, 2009
Competitive hydrogen bonding and self‐assembly in poly(2‐vinyl pyridine)‐block‐poly(methyl methacrylate)/poly(hydroxyether of bisphenol A) blends
Authors: Salim Nisa V. , Hameed Nishar , Guo Qipeng 
Published: August 2009

AbstractBlends of poly(2‐vinyl pyridine)‐block‐poly(methyl methacrylate) (P2VP‐b‐PMMA) and poly(hydroxyether of bisphenol A) (phenoxy) were prepared by solvent casting from chloroform solution. The specific interactions, phase behavior and nanostructure morphologies of these blends were investigated by Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC), dynamic light scattering (DLS), atomic force microscopy (AFM), and transmission electron microscopy (TEM). In this block copolymer/homopolymer blend system, it is established that competitive hydrogen bonding exists as both blocks of the P2VP‐b‐PMMA are capable of forming intermolecular hydrogen bonds with phenoxy. It was observed that the interaction between phenoxy and P2VP is stronger than that between phenoxy and PMMA. This imbalance in the intermolecular interactions and the repulsions between the two blocks of the diblock copolymer lead to a variety of phase morphologies. At low phenoxy concentration, spherical micelles are observed. As the concentration increases, PMMA begins to interact with phenoxy, leading to the changes of morphology from spherical to wormlike micelles and finally forms a homogenous system. A model is proposed to describe the self‐assembled nanostructures of the P2VP‐b‐PMMA/phenoxy blends, and the competitive hydrogen bonding is responsible for the morphological changes. © 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 1894–1905, 2009
Diameter control of electrospun chitosan‐collagen fibers
Authors: Chen Zong‐Gang , Wei Bo , Mo Xiu‐Mei , Cui Fu‐Zhai 
Published: August 2009

AbstractIn this article, the effects of fundamental parameters including applied voltage, feed rate of solution, collecting distance of fibers, the ratio of chitosan to collagen in the fibers and polymer solution concentration on the diameter and morphology of electrospun collagen‐chitosan complex nanofibers were studied to produce ultrafine polymer fibers. Based on the systematic parametric study, it is possible to control the diameter and morphology of the electrospun polymer fibers. This will also be helpful for electrospinning of various polymers. © 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 1949–1955, 2009
Relationship Between the Low Temperature Thermolysis and Detonation Temperature of Carbocyclic Nitroaromatic Compounds
Authors: Hossein Keshavarz Mohammad , Reza Pouretedal Hamid , Sadeghi Hossein , Semnani Abolfazl 
Published: August 2009

AbstractIn this paper, a new relationship between the activation energies (Ea) of the low temperature thermolysis and detonation temperature for different carbocyclic nitroaromatic compounds is introduced. Two structural parameters are needed to obtain a relatively good correlation for Ea. The resulting R2 value of the new correlation is 0.942. The new equation assumes that the calculated detonation temperature can be applied to predict Ea of carbocyclic nitroaromatic compounds with the general formula CaHbNcOd and any complicated molecular structure. The proposed new method was also used to predict Ea of some technologically attractive high thermostable polynitro arenes with complex molecular structure, e.g., 2,2′,2″,2′′′,4,4′,4″,4′′′,6,6′,6″,6′′′‐dodecanitro‐[1,3′,1′,1″] quaterphenyl (DODECA).
Raman processes of KNaSO4 and K3Na(SO4)2 single crystals studied by 23Na and 39K nuclear magnetic resonance
Authors: Lim Ae Ran , Choi Il Hwan , Chang Jin‐Hae 
Published: August 2009

AbstractThe spin–lattice relaxation rate, T, of the 23Na and 39K nuclei in KNaSO4 and K3Na(SO4)2 crystals was determined in the temperature range 160–420 K. The results showed similar temperature dependences of T for both types of nuclei, indicating that the local environment has an important influence on T of the metal nuclei. Moreover, the T values of the 23Na and 39K nuclei in the two crystals were found to increase with increasing temperature, and T was determined to be proportional to Tk for both metals. In the case of KNaSO4 and K3Na(SO4)2, T was found to have a temperature dependence proportional to T2, indicating that Raman processes may be responsible for the relaxation of the 23Na and 39K nuclei. Therefore, for the 23Na and 39K nuclei in the two crystals, Raman processes with k = 2 are more effective in nuclear quadrupole relaxation than direct processes.
Electronic structures of PrBa2Cu3O7, Pr2Ba4Cu7O15−y (y = 0, 1), and PrBa2Cu4O8 based on LSDA + U method
Authors: Tavana A. , Shirazi M. , Akhavan M. 
Published: August 2009

AbstractThe electronic structures of PrBa2Cu3O7 (Pr123), Pr2Ba4Cu7O15−y (Pr247), and PrBa2Cu4O8 (Pr124) cuprates have been obtained using density‐functional theory in the local spin density approximation plus onsite Coulomb interaction (LSDA + U). Onsite Hubbard correlation, U, has been considered for Pr‐f and Cu‐d orbitals and the effects of considering these correlation corrections on the PrO hybridizations have been inspected. Results imply that the Pr ionization state in Pr123 system is constituted from two different configurations, and the energy of the f states in these two configurations has an important role in superconductivity properties of the system. Our calculations also show that in both Pr124 and Pr247 systems, suppression of superconductivity is weaker than that in the Pr123 system. This occurs due to the weaker PrO bond in both Pr124 and Pr247 systems. The role of the double chain and single chain on the conduction properties of these compounds has been investigated. We have also studied the effect of oxygen deficiency in Pr247 system, which seems to revive superconductivity in this system. Investigating the hole carriers in the CuO2 plane shows a correlation between superconductivity suppression and hole decrement in the planes.
The reorientation temperature in ultrathin ferromagnetic films
Authors: Ilkovič V. 
Published: August 2009

AbstractThe reorientation temperature in ultrathin ferromagnetic films is studied within the framework of the many‐body Green function theory. The model Hamiltonian includes a Heisenberg term with the different surface exchange couplings with respect to the bulk one, a second‐order single‐ion anisotropy, and a transverse external magnetic field in thex‐direction. The single‐ion anisotropy term is treated by the generalized Anderson–Callen decoupling scheme. We investigate the reorientation temperatureTR(a) as a function of the surface single‐ion anisotropic parameterK2,S(T → 0) for different: film thicknessesL, surface exchange coupling enhancementsΔS, transverse magnetic fieldshand (b) as a function of the transverse magnetic fieldhfor different: film thicknessesL, surface exchange coupling enhancementsΔS, surface single‐ion anisotropic parametersK2,S(T → 0).