bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Coordination Polymerization of Polar Vinyl Monomers by Single‐Site Metal Catalysts
Authors: Chen Eugene Y.‐X. 
Published: February 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Renaissance in Living Cationic Polymerization
Authors: Aoshima Sadahito , Kanaoka Shokyoku 
Published: February 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Helical Polyacetylene: Asymmetric Polymerization in a Chiral Liquid‐Crystal Field
Authors: Akagi Kazuo 
Published: February 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Epigenetic perspectives on development: Evolving insights on the origins of variation
Authors: Champagne Frances A. 
Published: February 2010

AbstractThe articles in this special section of Developmental Psychobiology explore topics discussed at the 24th Annual Winter Conference on Current Issues in Developmental Psychobiology held in January 2009 in St. Croix. The final session of the meeting: “Epigenetics and Behavioral Development Within and Across Generations” included discussion of several emerging issues relevant to the study of individual differences, parental influences on development, and the stability versus plasticity of the underlying mechanisms involved in behavioral variation. The contributions to this special section highlight the importance of the epigenetic regulation of gene expression to the field of developmental psychobiology and the critical role of these molecular mechanisms in mediating the interplay between genes and the environment. © 2010 Wiley Periodicals, Inc. Dev Psychobiol 52: e1–e3, 2010.
Cancer models in Caenorhabditis elegans
Authors: Kirienko Natalia V. , Mani Kumaran , Fay David S. 
Published: February 2010

AbstractAlthough now dogma, the idea that nonvertebrate organisms such as yeast, worms, and flies could inform, and in some cases even revolutionize, our understanding of oncogenesis in humans was not immediately obvious. Aided by the conservative nature of evolution and the persistence of a cohort of devoted researchers, the role of model organisms as a key tool in solving the cancer problem has, however, become widely accepted. In this review, we focus on the nematode Caenorhabditis elegans and its diverse and sometimes surprising contributions to our understanding of the tumorigenic process. Specifically, we discuss findings in the worm that address a well‐defined set of processes known to be deregulated in cancer cells including cell cycle progression, growth factor signaling, terminal differentiation, apoptosis, the maintenance of genome stability, and developmental mechanisms relevant to invasion and metastasis. Developmental Dynamics 239:1413–1448, 2010. © 2010 Wiley‐Liss, Inc.
A Simple and Efficient Catalytic System for Coupling Aryl Halides with Aqueous Ammonia in Water
Authors: Wu Zhiqing , Jiang Zhaoqiong , Wu Di , Xiang Haifeng , Zhou Xiangge 
Published: February 2010

AbstractThe cross‐coupling reaction between aryl halides andaqueous ammonia was efficiently catalyzed by the sulfonato–Cu(salen) complex in water with high yields. A variety of substituted aryl bromides and aryl iodides were found to be applicable to the environmentally benign system. Substituted 1H‐benzimidazole could also be easily prepared by coupling aqueous ammonia with 2‐iodoacetanilide in one pot with this catalytic system.
Experimental Analysis on Performance and Durability of SOFC Demonstration Unit
Authors: Halinen M. , Saarinen J. , Noponen M. , Vinke I. C. , Kiviaho J. 
Published: February 2010

AbstractA technical description and experimental analysis of a SOFC demonstration unit is presented. The unit contains most of the primary BoP‐components of a complete SOFC system, except of air and fuel recirculation equipment or fuel system compressor. Natural gas is used as the fuel and electricity is supplied to the electric grid. A 5 kW power class planar SOFC stack from Research Centre Jülich is assembled to the demo unit and a long‐term experiment is conducted to assess the characteristic performance and durability of different components of the unit (e.g. the SOFC stack, the fuel pre‐reformer and air heat exchangers). The evolution of absolute voltage drop of the stack over time is found to be of the same magnitude when compared to short stack experiments. Thus, other system components are not observed to cause an increase in the characteristic voltage drop of the stack. Two BoP‐components, the afterburner and the power conversion unit failed to operate as designed. The performance of other BoP‐components i.e. fuel pre‐reformer and heat exchangers were satisfactory during the test run, and no significant performance loss could be measured.
Balanced steady state free precession fMRI
Authors: Lee Jin Hyung 
Published: February 2010

AbstractBalanced‐steady‐state free precession (b‐SSFP) functional magnetic resonance imaging (fMRI) encompasses several recently developed methods that utilize b‐SSFP acquisition for fMRI. Short repetition time (TR) and readout durations of b‐SSFP allow distortion‐free acquisition, 3D imaging, and high‐resolution isotropic voxel acquisition. b‐SSFP fMRI can be categorized into two different classes depending on which contrast mechanism it exploits. Transition‐band b‐SSFP fMRI is a technique that utilizes the sharp transition of the b‐SSFP profile relying on the fact that oxygenated and deoxegenated hemoglobin has different resonance frequencies. On the other hand, passband b‐SSFP fMRI utilizes b‐SSFP in the relatively large flat portion of the b‐SSFP off‐resonance spectrum where oxygenation contrast is expected to be generated from the rapid refocusing in the presence of off‐resonance due to oxy‐ and deoxy‐hemoglobin. While both methods share the advantage of b‐SSFP acquisition such as distortion‐free, 3D high‐resolution functional imaging, the main distinction of the two methods come from the contrast mechanism and spatial coverage. In this article, the two classes of b‐SSFP‐based functional brain imaging methods' characteristics will be compared and discussed. © 2010 Wiley Periodicals, Inc. Int J Imaging Syst Technol, 20, 23–30, 2010
Apparent diffusion coefficient dependent fMRI: Spatiotemporal characteristics and implications on calibrated fMRI
Authors: Song Allen W. , Truong Trong‐Kha 
Published: February 2010

AbstractIn this manuscript, we review the development of an alternative functional magnetic resonance imaging (fMRI) contrast mechanism based on the apparent diffusion coefficient (ADC), in light of the recent progress in other complementary functional imaging contrasts sensitive to cerebral blood flow (CBF) and cerebral blood volume (CBV). Specifically, we discuss the spatial and temporal characteristics of ADC fMRI in localizing neuronal activities, and also draw inference on its potential applicability to achieve fast calibrated fMRI. We found that optimized dynamic ADC contrast can lead to improved spatial localization in small vessel networks close to the true neuronal activities, while having the potential to simultaneously generate the blood oxygenation level‐dependent (BOLD) and CBF/CBV contrasts required in a calibrated fMRI experiment. With sufficient signal‐to‐noise ratio (SNR) and temporal resolution, fMRI based on thedynamic ADC contrast may prove to be an efficient technique toachieve accurate and quantitative measures of neuronal activities. © 2010 Wiley Periodicals, Inc. Int J Imaging Syst Technol, 20, 42–50, 2010
A geometric construction of Mathon's perp‐system from four lines of PG (5, 3)
Authors: Bamberg John , De Clerck Frank 
Published: February 2010

AbstractWe give a new construction of the Mathon perp‐system of the five‐dimensional projective space over the field with three elements, starting from four lines. © 2010 Wiley Periodicals, Inc. J Combin Designs 18: 450–461, 2010
Role of sonography in the diagnosis and treatment of a large iatrogenic pseudoaneurysm of a hepatic artery
Authors: Miraglia Roberto , Caruso Settimo , Maruzzelli Luigi , Luca Angelo , Gridelli Bruno 
Published: February 2010

AbstractWe report the sonographic (US) findings in a case of successful combined endovascular and percutaneous treatment of a large hepatic artery pseudoaneurysm, responsible of massive hemobilia, in a patient with coexisting portal vein thrombosis. Previous percutaneous transhepatic biliary drainage placement caused the pseudoaneurysm. US identified the pseudoaneurysm and showed the biliary drain crossing the pseudoaneurysm lumen. After partial endovascular coils embolization of the pseudoaneurysm lumen, the biliary catheter was removed and the entry site of the catheter in the aneurysmal sac was occluded with an Amplatzer vascular plug released under US guidance. The residual lumen was then completely embolized with coils and Lipiodol. © 2010 Wiley Periodicals, Inc. J Clin Ultrasound 38:450–453, 2010
Fiction, business studies, and leadership: From know‐how to embracing the impossible
Authors: Fraiberg Allison 
Published: February 2010

AbstractIn his article, “Educational Research: The Hardest Science of All,” policy scholar David Berliner (2002) asserts that “no unpoetic description of the human condition can ever be complete” (p. 20). Berliner's words echo the epistemological and methodological climate of late 1970s and early 1980s social science research, a phase often characterized as the “literary turn.” In this historical moment, social science scholars turned to interdisciplinary sources, most notably literary theory and the humanities, for new means of addressing the ineffable, aesthetic aspects of human activity. This work and emphasis remains a prominent, growing genre within several fields, exemplified by widespread recognition of Margaret Wheatley's poetic approach to leadership inquiry and pedagogy (2009), frequent inclusion of aesthetic works in leading research journals (such as Qualitative Inquiry), and recent creation of arts‐ and humanities‐based educational research criteria for submissions to the American Educational Research Association's annual conference and sponsored journals.No field of inquiry better illustrates the need to understand human activity as “poetic” than leadership, which is perhaps the quintessential marker of social existence. Accordingly, in this symposium we wish to explore how such interdisciplinary approaches, specifically those grounded in the humanities, have manifested in leadership inquiry and pedagogy. It is our hope that this collection of essays will illustrate the breadth and depth of the field of leadership studies, as well as offer our readers new perspectives and inspiration in their own research and practice.
The effects of clinically used MRI contrast agents on the biological properties of human mesenchymal stem cells
Authors: Kim Hoe Suk , Oh Sue Young , Joo Hyun Jung , Son Kyu‐Ri , Song In‐Chan , Moon Woo Kyung 
Published: February 2010

AbstractThis study was undertaken to compare the labeling efficiencies of three iron‐oxide based MRI contrast agents [Feridex, Resovist and monocrystalline iron oxide (MION)] and to evaluate their effects on the biological properties of human mesenchymal stem cells (hMSCs). The hMSCs were cultivated for 1 and 7 days after 24‐h labeling with iron oxide nanoparticles (12.5 µg Fe/mL) in the presence of poly‐L‐lysine (0.75 µg/mL). The hMSCs were labeled more efficiently with use of Feridex, Resovist as compared to MION. No significant differences were observed in terms of viability and proliferation of labeled hMSCs. The level of Oct‐4 mRNA increased in labeled hMSCs at day 1 and the cellular phenotype changed from CD45‐/CD44+/CD29+ to CD45low/CD44+/CD29+ at day 7, which closely resembles the phenotype of fresh bone marrow‐derived hMSCs. Our study has demonstrated that the Feridex or Resovist is the preferred labeling agent for hMSCs. There was a change in Oct‐4 and CD45 expression after labeling. Copyright © 2010 John Wiley & Sons, Ltd.
Exact solutions to the double travelling salesman problem with multiple stacks
Authors: Petersen Hanne L. , Archetti Claudia , Speranza M. Grazia 
Published: February 2010

AbstractIn this article we present mathematical programming formulations and solution approaches for the optimal solution of the Double Travelling Salesman Problem with Multiple Stacks (DTSPMS). A set of orders is given, each one requiring transportation of one item from a customer in a pickup region to a customer in a delivery region. The vehicle available for the transportation in each region carries a container. The container is organized in rows of given length. Each row is handled independently from the others according to a Last In First Out stack policy. The DTSPMS problem consists of determining the pickup tour, the loading plan of the container and the delivery tour in such a way that the total length of the two tours is minimized. The formulations are based on different modeling ideas and each formulation gives rise to a specific solution approach. We present computational results on a set of benchmark instances that compare the different approaches and show that the most successful one is a decomposition approach applied to a new model. © 2010 Wiley Periodicals, Inc. NETWORKS, 2010
Photochemical reaction mechanisms and kinetics with molecular nanocrystals: surface quenching of triplet benzophenone nanocrystals
Authors: Simoncelli Sabrina , Kuzmanich Gregory , Gard Matthew N. , Garcia‐Garibay Miguel A. 
Published: February 2010

AbstractOrganic molecular nanocrystals suspended in water are useful when studying reactions that occur in the solid state because they retain not only the reactive and supramolecular properties of bulk crystals, but are also amenable to transmission spectroscopy. Having previously studied the triplet state of benzophenone nanocrystals by laser flash photolysis transmission spectroscopy, we now report nanosecond experiments in the presence of several possible quenchers: anionic and cationic surfactants, dissolved oxygen, and as a function of solvent deuteration (H2O and D2O). After finding these to have no effect, several anionic quenchers (I−, Br−, and N) were tested by Stern–Volmer analysis. Significant correlation between the quenching rates in solution and in nanocrystals suggests that the electronic excitation is accessible to quenchers at the surface. Copyright © 2010 John Wiley & Sons, Ltd.
Endoscopic management of sphenoclival neoplasms: Anatomical correlates and patient outcomes
Authors: Solares C. Arturo , Grindler David , Luong Amber , Kanowitz Seth J. , Sade Burak , Citardi Martin J. , Batra Pete S. 
Published: February 2010

ObjectiveTo characterize the endoscopic anatomy of the sphenoid sinus and the adjacent clivus and cavernous sinus, and to review patient outcomes for neoplasms in this region.Study DesignCadaver dissection and chart review.SettingCadaver laboratory and tertiary care center.Subjects and MethodsFresh‐frozen cadaver heads were dissected to study the endoscopic anatomy of the sphenoclival region. Retrospective chart review of patients undergoing endoscopic resection of sphenoclival neoplasms between 2000 and 2008 was performed.ResultsTransnasal endoscopic access to the sphenoid sinus was obtained in 10 cadaver heads. A clival window with mean dimensions of 1.4 cm × 1.7 cm was created. Through the clival window, identification and dissection of the basilar and vertebral arteries, mamillary bodies, third ventricle, cranial nerves III through VI, and cervical rootlets were possible. Nineteen patients with mean age of 56.2 years were treated. The most common pathologies were inverted papilloma (5), chordoma (4), squamous cell carcinoma (2), and adenoid cystic carcinoma (2). None of the patients required adjunct craniotomies. Nine patients received adjuvant therapies. Thirteen (68.4%) patients had no evidence of disease, five (26.3%) patients were alive with disease, and one (5.3%) patient died of disease at mean follow‐up of 32.6 months.ConclusionThe sphenoclival region poses a significant surgical challenge given its central location at the skull base and proximity to critical structures. This study demonstrates that transnasal endoscopic access to the sphenoclival region is technically feasible and allows successful surgical extirpation of tumors with a low complication rate and acceptable patient outcomes.
Stereotactic body radiotherapy for refractory cervical lymph node recurrence of nonanaplastic thyroid cancer
Authors: Kim Jin Ho , Kim Mi‐Sook , Yoo Seong Yul , Lim Sang Moo , Lee Guk Haeng , Yi Ka Hee 
Published: February 2010

ObjectiveTo investigate the feasibility and efficacy of stereotactic body radiotherapy as salvage treatment for cervical node recurrence from nonanaplastic thyroid cancer refractory to other modalities.Study DesignPilot study.SettingA single institution‐based practice.Subjects and MethodsBetween August 2002 and November 2007, nine patients with recurrent nonanaplastic thyroid cancer were treated with stereotactic body radiotherapy for nodal metastases. Radiotherapy was delivered in one to three fractions, and the median dose was 36 Gy (range 30‐39 Gy).ResultsTwenty‐nine nodes in nine patients were treated. Seven patients had papillary carcinoma, and two had medullary carcinoma. These patients developed nodal recurrence after they received salvage surgery and/or radioisotope (RI) treatment for recurrent thyroid cancer. All nodes were in the cervical or supraclavicular areas, excepting one hilar node. Retropharyngeal node metastases were present in five patients. The median follow‐up period was 23 months (range 4‐63 mo). No local progression was observed in nodes treated by stereotactic body radiotherapy. Four patients developed new metastases in nontarget regional nodes after radiotherapy, and in two of these, regional failure was salvaged by additional stereotactic body radiotherapy. No serious adverse events were observed in any patient.ConclusionIn select patients, stereotactic body radiotherapy may be a feasible option for treating refractory nodal recurrence from nonanaplastic thyroid cancer. Further studies are necessary to define the role of stereotactic body radiotherapy in the management of thyroid cancer.
Responses of C3 and C4 grasses to application of nitrogen and phosphorus fertilizer at two dates in the spring
Authors: Rubio G. , Gutierrez Boem F. H. , Lavado R. S. 
Published: February 2010

AbstractIn grasslands composed of C3 and C4 plants, a different pattern of response by the two photosynthetic types to fertilizer may change the floristic composition of the community. In this study, we evaluated the effects of an application of nitrogen (N) and phosphorus (P) fertilizer at two dates in the spring on the aerial growth of C3 and C4 grasses. Danthonia montevidensis and Stipa neesiana(C3), and Setaria geniculata and Sporobolus indicus (C4), were selected from a native grassland of the Flooding Pampa, Argentina. Two consecutive experiments (early and late spring) were conducted in pots filled with the local soil. The C3 grasses showed no response in aerial biomass, and only minor responses in aerial concentrations of N and P, numbers of leaves and tillers, and nutrient use efficiency to an application of P or N fertilizer. In contrast, their C4 counterparts showed a consistent positive response. C4 species performance was considerably influenced by date of fertilizer application in the spring. There was on average a 1·8 and a 2·5 increase in aerial biomass in early and late spring, respectively, to fertilizer application. The later date in spring was associated with higher ambient temperatures and it appeared that temperature rather than fertilizer application was the main limiting factor for C3 species. It was concluded that the positive response in C4 species to an application of P and N fertilizer indicates that the differences between C3 and C4 species were related to a higher demand to sustain greater growth rates in C4 species.
Genotoxic and apoptotic effects of Goeckerman therapy for psoriasis
Authors: Borska Lenka , Andrys Ctirad , Krejsek Jan , Hamakova Kvetoslava , Kremlacek Jan , Palicka Vladimir , Ranna Dianna , Fiala Zdenek 
Published: February 2010

AbstractBackground  Goeckerman therapy (GT) for psoriasis is based on cutaneous application of crude coal tar [polycyclic aromatic hydrocarbons (PAH)] and exposure to ultraviolet radiation (UVR). PAH and UVR are mutagenic, carcinogenic and immunotoxic agents that promote apoptosis.Methods  We evaluated dermal absorption of PAH as well as the genotoxic and apoptotic effects of GT in 20 patients with psoriasis, by determining numbers of chromosomal abnormalities in peripheral lymphocytes, and levels of 1‐hydroxypyrene (1‐OHP), p53 protein and soluble FasL (sFasL) in urine and/or blood, before and after GT. Psoriasis Area and Severity Index (PASI) score was used to evaluate clinical efficacy of GT.Results  Compared with pre‐treatment levels, there was a significant increase in urine 1‐OHP, indicating a high degree of dermal absorption of PAH (P < 0.01). We also found a significant increase in the number of chromosomal abnormalities in peripheral blood lymphocytes (P < 0.001), suggesting that GT is genotoxic; significantly increased p53 protein in plasma (P < 0.05), an indicator of cell response to DNA damage; and significantly increased sFasL in serum (P < 0.01), an indicator of apoptosis. The PASI score was significantly decreased after GT (P < 0.001), confirming clinical benefit of this treatment.Conclusion  Our results demonstrate high dermal absorption of PAH during GT and provide evidence that GT promotes genotoxicity and apoptosis.
Bacterial resistance in French acne patients
Authors: Dumont‐Wallon G. , Moyse D. , Blouin E. , Dréno B. 
Published: February 2010

AbstractBackground  The percentage of strains of Propionibacterium acnes resistant to antibiotics in acne is increasing in many countries, raising the question of the risks associated with bacterial resistance. Numerous series of cases have been published on European populations of acne patients, but at the moment we still have very few data regarding France.Objectives  The aim of this study was to evaluate the prevalence of P. acnes resistant strains to erythromycin, tetracycline, and doxycycline in a population of French acne patients.Methods  Specimens were collected from 273 patients in 43 centers located throughout France (12 hospitals and 31 private office practices).Results  75.1% of the patients were carriers of P. acnes strains resistant to erythromycin and 9.5% to tetracycline. One hundred percent of strains resistant to tetracycline were also resistant to doxycycline. There was no significant difference among the regions and between patients followed in hospital or private office.Conclusions  It clearly appears that the percentage of patients with P. acnes strains resistant to erythromycin is similar to that in other countries, but lower for tetracycline or doxycycline in comparison to other European countries.