bluuebunny/crossref_metadata_2025_split huggingface dataset:
High Temperature Operation of a Solid Polymer Electrolyte Fuel Cell Stack Based on a New Ionomer Membrane
Authors: Aricò A. S. , Di Blasi A. , Brunaccini G. , Sergi F. , Dispenza G. , Andaloro L. , Ferraro M. , Antonucci V. , Asher P. , Buche S. , Fongalland D. , Hards G. A. , Sharman J. D. B. , Bayer A. , Heinz G. , Zandonà N. , Zuber R. , Gebert M. , Corasaniti M. , Ghielmi A. , Jones D. J. 
Published: November 2010

AbstractPolymer electrolyte fuel cell stacks assembled with Johnson Matthey Fuel Cells and SolviCore MEAs based on the Aquivion™ E79‐03S short‐side chain (SSC), chemically stabilised perfluorosulphonic acid membrane developed by Solvay Solexis were investigated at CNR‐ITAE in the EU Sixth Framework ‘Autobrane' project. Electrochemical experiments in fuel cell short stacks were performed under practical automotive operating conditions at pressures of 1–1.5 bar abs. over a wide temperature range, up to 130 °C, with varying levels of humidity (down to 18% R. H.). The stacks using large area (360 cm2) MEAs showed elevated performance in the temperature range from ambient to 100 °C (cell power density in the range of 600–700 mWcm–2) with a moderate decrease above 100 °C. The performances and electrical efficiencies achieved at 110 °C (cell power density of about 400 mWcm–2 at an average cell voltage of about 0.5–0.6 V) are promising for automotive applications. Duty‐cycle and steady‐state galvanostatic experiments showed excellent stack stability for operation at high temperature. A performance comparison of AquivionTM and NafionTM‐based MEAs under practical operating conditions showed a significantly better capability for the Solvay Solexis membrane to sustain high temperature operation.
Site‐specific Surface Chemistry on Nanotubes
Authors: Burghaus U. , Zak A. , Rosentsveig R. 
Published: October 2010

AbstractA simple ultra‐high vacuum sample temperature ramping technique can be used to characterize the confinement effects and different adsorption sites on nanotube (NT) bundles deposited on a support such as silica. Results for inorganic NTs such as WS2 and TiO2 NTs are compared with data for carbon nanotubes and inorganic WS2 fullerene‐like nanoparticles.
Characterization of absorbent polymers for the removal of volatile hydrophobic pollutants from air
Authors: Montes María , Daugulis Andrew J. , Veiga Maria C. , Kennes Christian 
Published: October 2010

AbstractBACKGROUND: An emerging innovation for the treatment of polluted air consists in using a liquid–solid biphasic system, in which the sequestering phase contains inert polymer beads. The different polymers tested here for this purpose were; Hytrel® G3548L, Hytrel® G4078W, styrene butadiene copolymer, 28% and 31%, silicone rubber, PEBAX® 2533, and rubber tires. The selection of the most effective polymer(s) first requires a determination of the uptake of the pollutants by the solid phase in terms of key polymer properties such as partition coefficient, diffusion coefficient and biodegradability.RESULTS: A significant difference was found in the uptake levels of α‐pinene from the gas phase for the different polymers tested. Based on partition coefficient measurements, relatively non‐polar polymers such as Kraton® tend to uptake α‐pinene better than polar ones, such as Hytrel®. A reduction in the partition coefficient of α‐pinene into polymers in the presence of water has also been observed. It was also proven that the tested polymers are not biodegradable.CONCLUSIONS: The uptake of α‐pinene by the different polymers tested was determined and it was shown that such polymers could be used for air pollution control. Furthermore, their non‐biodegradability justifies their use as absorbents. This paper provides a new opportunity to work with biofilters (BFs)/biotrickling filters (BTFs) using polymers as a sequestering phase. Copyright © 2010 Society of Chemical Industry
Sonographic appearances of mucosa‐associated lymphoid tissue lymphoma of the submandibular gland confirmed with sonographically guided core needle biopsy
Authors: Eun Bahn Young , Lee Sang Kwon , Kwon Sun Young , Kim Sang Pyo 
Published: October 2010

AbstractA 71‐year‐old man presented with mucosa‐associated lymphoid tissue (MALT) lymphoma of the submandibular gland 52 months after initial diagnosis of MALT lymphoma of the lung. Ultrasonography showed a well‐demarcated, markedly hypoechoic, heterogeneous solid mass with linear echogenic strands and hypervascularity. Ultrasound‐guided core‐needle biopsy demonstrated histological findings of MALT lymphoma. Sonographic features of MALT lymphoma of the submandibular gland are characteristic and ultrasound‐guided core‐needle biopsy may be a suitable replacement for surgical biopsy. © Wiley Periodicals, Inc. J Clin Ultrasound, 2011
Development and evaluation of a fluorogenic real‐time RT‐PCR for the detection of dengue 3 virus
Authors: Tan Irene L. , Dimamay Mark Pierre S. , Buerano Corazon C. , Alfon Jhoe Anthony R. , Tanig Carol Z. , Matias Ronald R. , Natividad Filipinas F. 
Published: October 2010

AbstractA dengue‐3‐specific real‐time reverse transcriptase‐polymerase chain reaction (RT‐PCR) was developed using the novel Light Upon eXtension (LUX™) fluorogenic technology. A labeled forward primer and a standard reverse primer that target a conserved region within the non‐structural 1 (NS1) gene of dengue 3 strains were designed. The dengue‐3‐specific assay did not recognize other dengue serotypes and related flaviviruses. Using a tenfold serial dilution of plasmid DNA containing the dengue 3 NS1 gene as standards, the range of dengue virus detection was determined to be from 103 to 109 copies/ml or from 80 to 8 × 107 copies/reaction with an average correlation coefficient of ≥0.99. The mean intra‐assay coefficient of variation (CV) at 2.01% and the mean inter‐assay CV at 2.68% suggest the repeatability of the procedure. Moreover, the fluorogenic assay was evaluated by using clinical specimens and comparing test results with historical data obtained from conventional RT‐PCR, which served as the criterion standard. Using patient sera as test samples, the assay demonstrated 95.45% sensitivity and 100% specificity, respectively. These results reveal that the real‐time RT‐PCR assay may be utilized as a rapid, convenient, and sensitive tool for the detection of dengue 3 in clinical and laboratory specimens. J. Med. Virol. 82:2053–2063, 2010. © 2010 Wiley‐Liss, Inc.
Rhinovirus species and their clinical presentation among different risk groups of non‐hospitalized patients
Authors: Watanabe Aripuana , Carraro Emerson , Kamikawa Janete , Leal Élcio , Granato Celso , Bellei Nancy 
Published: October 2010

AbstractInfections caused by Human Rhinoviruses (HRVs) account for 25–50% of respiratory illnesses among individuals presenting influenza‐like illness (ILI). HRVs could be classified in at least three species: HRV‐A, HRV‐B, and HRV‐C. The HRV‐C species has frequently been described among children and has led to severe illness resulting in hospitalization; however, the occurrence among adults is unknown. The aim of this study was to assess the clinical presentation and species distribution of HRV infections in different populations during 2001–2008. A total of 770 samples were collected. Subjects consisted of 136 adults from the general community and 207 health‐care workers (2001–2003), 232 renal‐transplanted outpatients (2002–2004), 70 children with congenital heart disease (2005) and 125 children from a day‐care center (2008). Amplification of HRV genes was performed by reverse transcriptase‐polymerase chain reaction (RT‐PCR) and followed by sequencing and phylogenetic analysis. HRV was detected in 27.4% of samples (211/770), with 72 children (36.9%) and 139 adults infected (24.2%). A total of 89.61% (138/154) unknown HRV strains were sequenced, and 79.22% (122/138) were analyzed. We identified 74 isolates (60.7%) of the HRV A species, 21 (17.2%) of the HRV B species and 27 isolates (22.1%) of the HRV C species. HRV species A and B caused ILI among adult patients, whereas HRV‐C did not. The dynamics of infection among different species deserve further analysis. J. Med. Virol. 82:2110–2115, 2010. © 2010 Wiley‐Liss, Inc.
Emergence, dominance, and possible decline of CXCR4 chemokine receptor usage during the course of HIV infection
Authors: Meehan Conor J. , Hedge Jessica A. , Robertson David L. , McCormack Grace P. , Travers Simon A.A. 
Published: October 2010

AbstractBinding to a chemokine receptor, either CCR5 or CXCR4, by the gp120 glycoprotein is an essential step in the pathway by which HIV enters host cells. Recently, CCR5 antagonists have been developed that obstruct binding of CCR5 by gp120, thus inhibiting host cell entry. Resistance to such CCR5 antagonists may emerge, however, through the selection of viral strains capable of utilizing CXCR4 receptors. This study explores the evolutionary context of emergence, and in many cases decline, of dominant CXCR4‐usage (X4) during disease progression within a number of individuals. Of seven individuals exhibiting a switch to dominant CXCR4 usage, such dominance is transient in five of them with CCR5‐usage (R5) re‐emerging to dominate the viral population later in disease progression. Three individuals conform to documented X4 transience in that the re‐emergence of R5 dominance is an outgrowth from the predominant R5 strain. However, in two individuals we observe a novel pathway for R5 re‐emergence in that R5 strains emerge to dominate late in disease progression through continued evolution of the X4 population. This suggests that the molecular mechanism of such switches between R5 and X4‐usage is strain specific and that no single mechanism is shared between individuals. These findings have implications for the understanding of the mechanisms of potential emergence of resistance to CCR5 antagonists through use of the CXCR4 receptor and support the importance to have an appropriately optimized background therapy for use with entry inhibitors and, as for all HAART, to monitor drug resistance in a comprehensive manner. J. Med. Virol. 82:2004–2012, 2010. © 2010 Wiley‐Liss, Inc.
A fas gene polymorphism influences herpes simplex virus type 2 infection in South African women
Authors: Chatterjee Koushik , Dandara Collet , Gyllensten Ulf , van der Merwe Lize , Galal Ushma , Hoffman Margaret , Williamson Anna‐Lise 
Published: October 2010

AbstractHerpes simplex virus type 2 (HSV‐2) is a common sexually transmitted infection (STI) worldwide that causes genital infection. Among several factors responsible, host genetic factors may play an important role in susceptibility to HSV‐2 infection. Apoptosis is a vital mechanism in eliminating virus‐infected cells and controlling viral infections. Apoptosis can be regulated and triggered by the interaction between Fas and Fas Ligand (FasL). Polymorphisms in genes encoding Fas and FasL might result in altered apoptosis and contribute in susceptibility to viral infections. Two polymorphisms in Fas gene (FasR‐1377G > A, FasR‐670A > G) and one in FasL gene (FasL‐844T > C) have been well studied and associated with different diseases. These polymorphisms were investigated in 407 South African women of black African and mixed‐ancestry origin to determine if they were associated with HSV‐2 seropositivity. Two hundred sixty‐five women were HSV‐2 infected and 142 were non‐infected. HSV‐2 was detected using HerpeSelect ELISA test and genotyping was performed using TaqMan assay. FasR‐1377A allele showed a statistically significant association (P = 0.008) with reduced risk of HSV‐2 infection. Analyzing the FasR haplotypes also showed a statistically significant association (P = 0.0001) with FasR‐1377/FasR‐670 AG haplotype and reduced risk of HSV‐2 infection. There was no significant association found with FasR‐670A > G and FasL‐844T > C polymorphisms and risk of HSV‐2 infection. This is, to our knowledge, the first time a non‐HLA genetic link with HSV‐2 infection has been reported. J. Med. Virol. 82:2082–2086, 2010. © 2010 Wiley‐Liss, Inc.
Extreme precipitation vulnerability in the Upper Thames River basin: uncertainty in climate model projections
Authors: Solaiman Tarana A. , King Leanna M. , Simonovic Slobodan P. 
Published: October 2010

AbstractThis study provides an assessment of possible future climate conditions for the Upper Thames River (UTR) basin. The interpretation of future climate from widely used global climate models has a large impact on the comparison of the simulated daily extreme precipitations. Unfortunately, literature relevant to analyzing precipitation extremes is limited and more work is necessary to develop strategies for assessing the vulnerability of extreme precipitation events on water resources and communities at both local and regional levels. The present study deals with six different atmosphere–ocean coupled general circulation models (AOGCMs) with up to three emission scenarios in order to generate a precipitation series for the 2050s. The data has been downscaled using a principal component analysis–integrated stochastic weather generator (WG‐PCA) to produce a synthetic dataset for 54 years. The variability between the AOGCMs and their emission scenarios are investigated, as well as the performance of the WG‐PCA generator in producing extreme precipitation events. The comparative analysis of 14 different scenarios shows that the AOGCM results are variable and need to be carefully screened before using them for future climate change impact assessments in the UTR basin. Future work is needed on regional studies to explore local characteristics of precipitation extremes and improve the model quality by introducing more input variables relevant to the precipitation extremes. Copyright © 2010 Royal Meteorological Society
Graduate study in executive and organizational coaching: Considerations for program development
Authors: Stein Irene F. , Page Linda J. 
Published: October 2010

AbstractAs organizations increasingly see the need to include coaching as part of their culture, more and more certificate‐ and degree‐granting graduate academic institutions are including executive and organizational coaching programs as part of their curriculum offerings. There are currently no uniform curriculum standards for professional coaching academic programs, although some are being developed by the Graduate School Alliance for Executive Coaching. This article describes what new executive and organizational coaching programs must consider as they are being planned. The article starts with a short history of professional coaching preparation and then presents the major questions that new programs must answer for themselves.
Cultural behavior and attitude differences found in excerpts of Micronesian folklore: Their relevance for global organizations
Authors: Vesper Ethel R. 
Published: October 2010

AbstractThis article examines cultural values and attitudes in terms of how these are reflected in samples of folklore from Kosrae Island, Micronesia. Based on the work of Hofstede and Hofstede (2005) and Trompenaars and Hampden‐Turner (1998), this investigator believes that there is evidence that the analysis of the themes gleaned from the folklore of Kosrae and identified and matched with the cultural values discussed by these authors can be replicated by other researchers working in Micronesia and other parts of the world. To support this in part, excerpts from folklore from Kabon Atoll, a coral atoll found in the Ratak Chain, Marshall Islands, are included. In addition, evidence found in the folklore from both islands may account for cultural behavior and attitude differences that are relevant for global organizations doing business with these cultures.
An Improved Weighted‐Residue Profile Based Method of Using Protein–Ligand Interaction Information in Increasing Hits Selection from Virtual Screening: A Study on Virtual Screening of Human GPCR A2A Receptor Antagonists
Authors: Shahid Mohammad , Kasam Vinod , Hofmann‐Apitius Martin 
Published: October 2010

AbstractThe use of protein‐ligand interaction information has been reported to improve and optimize the docking results in virtual screening experiments. Here we propose an improved weighted‐residue profile based method to profile the protein‐ligand interactions based on the available dataset of known actives and utilize this weighted residue profile information, together with the scoring function, as selection criteria to increase hit rates in virtual screening experiments. The generated fingerprint data is not directly based on the protein‐ligand complexes but taken from the available interaction data derived from the docking results. The ability of the method to recover the active compounds was tested on two data sets of a compound library designed for antagonists of the A2A receptor. The results show better hits enrichments by using the weighted‐residue based profiles of protein‐ligand interactions as compared to the normal binding energy based scoring schemes of the two docking programs.
Simplified synthesis and relaxometry of magnetoferritin for magnetic resonance imaging
Authors: Clavijo Jordan Veronica , Caplan Michael R. , Bennett Kevin M. 
Published: October 2010

AbstractMagnetoferritin nanoparticles have been developed as high‐relaxivity, functional contrast agents for MRI. Several previous techniques have relied on unloading native ferritin and re‐incorporation of iron into the core, often resulting in a polydisperse sample. Here, a simplified technique is developed using commercially available horse spleen apoferritin to create monodisperse magnetoferritin. Iron oxide atoms were incorporated into the protein core via a step‐wise Fe(II)Chloride addition to the protein solution under low O2 conditions; subsequent filtration steps allow for separation of completely filled and superparamagnetic magnetoferritin from the partially filled ferritin. This method yields a monodisperse and homogenous solution of spherical particles with magnetic properties that can be used for molecular magnetic resonance imaging. With a transverse per‐iron and per‐particle relaxivity of 78 mM−1 sec−1 and 404,045 mM−1 sec−1, respectively, it is possible to detect ∼10 nM nanoparticle concentrations in vivo. Magn Reson Med, 2010. © 2010 Wiley‐Liss, Inc.
Multiecho coarse voxel acquisition for neurofeedback fMRI
Authors: Kuo Audrey Y.‐C. , Chiew Mark , Tam Fred , Cunningham Charles , Graham Simon J. 
Published: November 2010

Abstract“Real‐time” functional magnetic resonance imaging is starting to be used in neurofeedback applications, enabling individuals to regulate their brain activity for therapeutic purposes. These applications use two‐dimensional multislice echo planar or spiral readouts to image the entire brain volume, often with a much smaller region of interest within the brain monitored for feedback purposes. Given that such brain activity should be sampled rapidly, it is worthwhile considering alternative functional magnetic resonance imaging pulse sequences that trade spatial resolution for temporal resolution. We developed a prototype sequence localizing a column of magnetization by outer volume saturation, from which densely sampled transverse relaxation time decays are obtained at coarse voxel locations using an asymmetric gradient echo train. For 5 × 20 × 20 mm3 voxels, 256 echoes are sampled at ∼1 msec and then combined in weighted summation to increase functional magnetic resonance imaging signal contrast. This multiecho coarse voxel pulse sequence is shown experimentally at 1.5 T to provide the same signal contrast to noise ratio as obtained by spiral imaging for a primary motor cortex region of interest, but with potential for enhanced temporal resolution. A neurofeedback experiment also illustrates measurement and calculation of functional magnetic resonance imaging signals within 1 sec, emphasizing the future potential of the approach. Magn Reson Med, 2011. © 2010 Wiley‐Liss, Inc.
Intrinsic detection of motion in segmented sequences
Authors: Mendes Jason , Parker Dennis L. 
Published: November 2010

AbstractWhile many motion correction techniques for MRI have been proposed, their use is often limited by increased patient preparation, decreased patient comfort, additional scan time, or the use of specialized sequences not available on many commercial scanners. For this reason, we propose a simple self‐navigating technique designed to detect motion in segmented sequences. We demonstrate that comparing two segments containing adjacent sets ofk‐space lines results in an aliased error function. A global shift of the aliased error function indicates the presence of in‐plane rigid‐body translation, while other types of motion are evident in the dispersion or breadth of the error function. Since segmented sequences commonly acquire data in sets of adjacentk‐space lines, this method provides these sequences with an inherent method of detecting object motion. Motion corrupted data can then be reacquired proactively or in some cases corrected or removed retrospectively. Magn Reson Med, 2010. © 2010 Wiley‐Liss, Inc.
Understanding Early Bronze Age social structure through mortuary remains: A pilot aDNA study from Titriş Höyük, southeastern Turkey
Authors: Matney T. , Algaze G. , Dulik M. C. , Erdal Ö. D. , Erdal Y. S. , Gokcumen O. , Lorenz J. , Mergen H. 
Published: October 2010

ABSTRACTThis report describes a pilot study examining aDNA from a skeletal population excavated in the 1990s at the late Early Bronze Age (EBA, c. 2300‐2100 BC) urban settlement of Titriş Höyük in southeastern Turkey. Typically, late EBA burials at Titriş Höyük consisted of periodically reused underground family crypts contained within houses. However, one unique set of remains dated to the latest phase of the late EBA occupation at the site departed from this burial pattern entirely. It consisted of an above ground mortuary installation (B98.87) displaying the skulls and post‐cranial bones of 19 individuals, most exhibiting a variety of fatal traumas. In this article, we compare the mtDNA sequences of these individuals with those buried in contemporary traditional late EBA intramural crypts. After successful extraction and amplification of ancient DNA molecules during a double blind study of 13 skeletons selected for the pilot study, our team was able to compare the genetic relatedness of individuals displayed in B98.87 to individuals buried elsewhere on the site. Based on archaeological evidence alone, earlier we had suggested that the occupants of B98.87 were perhaps outsiders, possibly soldiers vanquished in hostilities taking place shortly before the abandonment of the city at the end of the late EBA. However, our pilot study showed no clear genetic difference between the population of B98.87 and the broader population of the late EBA city, contrary to our expectations. Copyright © 2010 John Wiley & Sons, Ltd.
Assessing for generalized improvements in reading comprehension by intervening to improve reading fluency
Authors: Neddenriep Christine E. , Fritz Abigail M. , Carrier Miranda E. 
Published: October 2010

AbstractThe relationship between reading fluency and comprehension was evaluated in five 4th‐grade students. These students were identified as being at risk of not meeting yearly goals in reading fluency and comprehension based on fall benchmark assessment data. A brief intervention assessment was used to determine which intervention components would be essential to improving reading fluency across the five participants. As a result, the combination of repeated practice with performance feedback and error correction was implemented using instructional‐level reading materials twice per week for 30‐minute sessions with progress monitored weekly using AIMSweb measures of oral reading fluency and comprehension. Empirical, single‐case designs were used to evaluate the impact of the program across these five students with assessed, generalized improvements in comprehension. Results indicated increased rate of words read correctly per minute with generalized increases in comprehension for four of five participants. Implications for practice and directions for future research are discussed. © 2010 Wiley Periodicals, Inc.