bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dinuclear Manganese and Cobalt Complexes with Cyclic Polyoxovanadate Ligands: Synthesis and Characterization of [Mn2V10O30]6– and [Co2(H2O)2V10O30]6–
Authors: Inami Shinnosuke , Nishio Masaki , Hayashi Yoshihito , Isobe Kiyoshi , Kameda Hiroyuki , Shimoda Tatsuya 
Published: November 2009

AbstractAn all‐inorganic complex, [Mn2{(VO3)5}2]6– (1), was synthesized, and the structure determination reveals a dinuclear manganese complex coordinated by two cyclic pentavanadate ligands. The cyclic pentavanadate units sandwich the edge‐sharing octahedral dimanganese core through coordination of the oxido group of the pentavanadate. A dinuclear cobalt complex with a cyclic decavanadate, [Co2(OH2)2(VO3)10]6– (2), was also synthesized. The structure analysis reveals a dinuclear cobalt complex with a macrocyclic decavanadate, which is composed of 10 VO4 units joined by the vertex sharings. The CoO6 octahedrons are edge‐shared, with each cobalt octahedron coordinated to five oxido groups from the decavanadate. The remaining site is occupied by water. The coordinated water molecules are supported with hydrogen bonds in two directions. Complex 2 in acetonitrile shows no reactivity with dioxygen even at low temperature, and the cyclic voltammogram of 2 shows no redox chemistry in acetonitrile. Complex 2 exhibits chromism by water exposure both in the solid state and in acetonitrile. Complex 2 is green–yellow in color, and the addition of water causes the complex to turn brown. After heating the sample, it returns to its original color in a reversible manner. The EXAFS data in acetonitrile is also reported and is consistent with the solid‐state structure. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
Silver and Gold Catalysis for Cycloisomerization Reactions
Authors: Belmont Philippe , Parker Evelyne 
Published: November 2009

AbstractWe have focused our attention on cycloisomerization reactions involving silver‐ and gold‐based homogeneous catalysis. This topic is divided into two parts: one relating to cycloisomerization with an allene group and the other with an alkyne group. In each case we have then studied different partners such as carbonyl/carboxy groups, imines, amides or alkenes. Reactions involving allene and alkyne systems as partners are also briefly reported, along with miscellaneous transformations. Our purpose is also to stimulate some discussion by setting together the contributions of differentauthors to each type of cycloisomerization reaction. Meanwhile, we have outlined when necessary the impact of the choice of counterion or metal (silver vs. gold) in the course of the reaction. Finally, some mechanistic discussion and reaction intermediates are also mentioned if available.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
Silylative Coupling of Olefins with Vinylsilanes in the Synthesis of π‐Conjugated Double Bond Systems
Authors: Pawluć Piotr , Prukała Wiesław , Marciniec Bogdan 
Published: November 2009

AbstractThe design and development of highly efficient and selective methods for the synthesis of π‐conjugated arylvinyl derivatives, based on sequential catalytic reactions of organometallic reagents, have been the subject of extensive study because of their versatile application in organic synthesis and materials science. The silylative coupling of olefins with vinyl‐substituted silicon compounds represents one of the most efficient and selective methods for the synthesis of alkenylsilanes, which are particularly attractive scaffolds for further transformations, including transition‐metal‐catalysed cross‐coupling with organic halides or substitution with organic and inorganic electrophiles. The microreview highlights recent developments in sequential synthetic strategies including ruthenium‐catalysed silylative coupling followed by desilylative cross‐coupling and halogenation, leading to stereodefined organic derivatives containing arylene‐vinylene units widely applied as fine chemicals, functional materials or unsaturated building blocks in organic synthesis.
Convenient Synthesis of N‐Terminal Tfm‐Dipeptides from Unprotected Enantiopure α‐Tfm‐Proline and α‐Tfm‐Alanine (Eur. J. Org. Chem. 33/2009)
Authors: Chaume Grégory , Lensen Nathalie , Caupène Caroline , Brigaud Thierry 
Published: November 2009

AbstractThe cover picture shows that enantiopure fluorinated amino acids and peptides are conveniently obtained from ethyl trifluoropyruvate and trifluoroacetone. Details are discussed in the article by T. Brigaud et. al. on p. 5717 ff. The background is a picture of the Zen garden of the Tôfuku‐ji temple in Kyoto.
FEM modelling of faults occurred in buried power cables due to the removal of tree roots
Authors: Klimenta D. , Kuč V. , Raičević V. , Radosavljević J. , Jevtić M. , Tasić D. 
Published: November 2009

AbstractAn engineering approach to numerical modelling of power cable heating due to a line‐to‐earth short‐circuit caused by previous mechanical damages of a cable sheath and insulation is proposed in this paper. Nonlinearity of the finite element model is based on the soil thermal conductivity and heat sources as functions of temperature and time. The nonlinear transient analysis is applied to an authentic example of line‐to‐earth short‐circuit caused by a mechanical damage of the cable sheath and insulation that has arisen during the previous removal of tree roots. The represented fault occurred on 14 November 2007 in a buried 0.4 kV cable line installed in the city of Bijelo Polje, Republic of Montenegro. Also, this paper outlines a proposition of a technical report prescribing procedures for the removal of tree roots from the soil surrounding cables and for laying power cables nearby high vegetation. The proposed engineering approach is applicable to power cables of all voltage levels laid in soils with changeable moisture content. Copyright © 2009 John Wiley & Sons, Ltd.
Open‐loop analysis and self‐noise performance of an NDA synchroniser for carrier‐independent symbol timing recovery at baud rate
Authors: Gappmair Wilfried 
Published: November 2009

AbstractFeedback loops for symbol timing recovery are an attractive solution for continuous transmission of data, where rapid acquisition is not so important as in burst‐mode systems. In this context, carrier‐independent non‐data‐aided (NDA) timing error detectors, operated at only one sample per symbol, can be a most interesting option. AssumingM‐ary PSK signals and focusing on a linearised loop model for analytical work, such an algorithm has been discussed already in the technical literature. On the other hand, the linear approach does not apply for larger deviations from the stable equilibrium point as they are encountered during initial acquisition. In this case, the detector characteristic (S‐curve) must be known. Since not available from the open literature, it is derived in this paper not only for PSK but for linear modulation schemes in general. The slope in the stable equilibrium point is given in closed form such that the linearised tracker can be specified immediately. Furthermore, it turned out that the complexity of the detector, but also the computation of both S‐curve and slope, is most simple for a special value of the additional design parameter characterizing the algorithm. Based on this, the self‐noise variance is derived in closed form. ForM‐PSK schemes, it is proved that they experience no jitter floor due to pattern (data) noise. On the other hand, for non‐constant modulus signals, like QAM or APSK constellations, it is shown that the performance is proportional to the loop bandwidth. Finally, a detailed comparison with NDA maximum‐likelihood and Gardner algorithm, as standard method for carrier‐blind NDA tracking, is presented. Copyright © 2009 John Wiley & Sons, Ltd.
Volatile chemistry of a plant: mono‐sesquiterpenoid pattern in the growth cycle of Curcuma haritha
Authors: Baby Sabulal , Raj Gopan , Thaha Abdul Rasheed Muhammad , Dan Mathew 
Published: November 2009

AbstractVolatile molecules, mostly terpenoids, play a significant role in plant defence. The growth pattern–terpenoid interrelationship of Curcuma haritha, a perennial herb in the ginger family, is tracked by probing the contents of individual mono/sesquiterpenoids throughout its growth cycle by GC‐based techniques (GC–FID, GC–MS, Co‐GC, LRI determination, database and literature search), supported by NMR/mass spectroscopy. Forty to sixty‐four volatile compounds were identified in various growth stages. Major monoterpenes in C. haritha volatile oils were camphor (35.3 ± 0.89%/15.3 ± 0.16%), 1,8‐cineole (13.9 ± 0.27%/7.1 ± 0.09%), isoborneol (9.4 ± 0.27%/4.6 ± 0.10%) and borneol (4.4 ± 0.12%/2.3 ± 0.07%). Total monoterpene (C10) content in C. haritha was highest (69.7–67.0%) in its early growth stages (sprouting/leaf development) and gradually declined towards underground dormancy (lowest 36.9%). Major sesquiterpenes were germacrane‐type compounds: curdione (19.8 ± 0.37%/11.1 ± 0.11%), furanogermenone (18.8 ± 0.16%/trace), neocurdione (6.2 ± 0.14%/2.6 ± 0.04%) and germacrone (5.7 ± 0.12%/1.5 ± 0.06%). Total sesquiterpene (C15) content showed an opposite trend, i.e. 29.9% in sprouting stage to a maximum of 60.9% in dormancy. Guaiane‐type sesquiterpene lactones zedoarondiol, isozedoarondiol, zedoarolide B and zedoalactone B were also isolated from the acetone extract/ethyl acetate fraction of C. haritha rhizomes. The reverse progression of mono‐ and sesquiterpene levels from sprouting/leaf development/leaf‐withering stage to dormancy reveals an energetically feasible biosynthetic/defence plan in C. haritha. Copyright © 2009 John Wiley & Sons, Ltd.
Performance and persistence of Commodity Trading Advisors: Further evidence
Authors: Gregoriou Greg N. , Hübner Georges , Kooli Maher 
Published: November 2009

AbstractWe re‐examine the performance of Commodity Trading Advisors (CTAs) over the January 1995 to October 2008 period. We compare abnormal performance based on a number of alternative existing models, as well as a category‐specific model introducing asset‐, option‐, and moments‐based factors. Taking more factors into account significantly raises the explanatory power, and 9 out of 12 CTA categories significantly outperform the market. We find that numerous CTAs show persistence over a horizon of at least three months and they are also more likely to be persistent over a longer period. Yet, most of the persistence fades away upon the “acid test” of considering only the top and bottom quartiles of CTAs. © 2009 Wiley Periodicals, Inc. Jrl Fut Mark 30:725–752, 2010
RBSP3 is frequently altered in premalignant cervical lesions: Clinical and prognostic significance
Authors: Mitra Sraboni , Mazumder Indra Dipanjana , Bhattacharya Nilanjana , Singh Ratnesh K. , Basu Partha S. , Mondal Ranajit K. , Roy Anup , Zabarovsky Eugene R. , Roychoudhury Susanta , Panda Chinmay K. 
Published: November 2009

AbstractTo understand the importance of frequent deletion of 3p22.3 in cervical carcinogenesis, alterations (deletion/methylation/expression) of the candidate genes STAC, MLH1, ITGA9, and RBSP3, located in the region, were analyzed in 24 cervical intraepithelial neoplasia (CIN) and 137 uterine cervical carcinoma (CACX) samples. In CIN, RBSP3 deletion (48%) and methylation (26%) were high compared with the other genes (4–9%). In CACX, alterations of these genes were as follows: deletion: STAC (54%) > MLH1 (46%) > RBSP3 (45%) > ITGA9 (41%), methylation: RBSP3 (25%) > ITGA9 (24%) > STAC (19%) > MLH1 (13%). Overall, alterations of RBSP3 showed association with CIN, whereas for STAC and MLH1, this frequency increased significantly from CIN → Stage I/II and for ITGA9 from CIN → Stage I/II and also from Stage I/II → Stage III/IV. Quantitative mRNA expression analysis showed differential reduced expression of these genes in CACX concordant to their molecular alterations. The more active RBSP3B splice variant was underexpressed in CACX. RB1 was infrequently deleted in CACX. Concordance was seen between (i) inactivation of RBSP3 and intense p‐RB1 nuclear immunostaining and (ii) low/absence of MLH1 expression and its molecular alterations in CACX. In normal cervical epithelium, p‐RB1 immunostaining was low in differentiated cells, whereas MLH1 staining was seen in both nucleus and cytoplasm irrespective of differentiation stage. Alterations of the genes were significantly associated with poor prognosis. High parity (≥5)/early sexual debut (≤19 years) coupled with RBSP3 alterations/RB1 deletion predicted worst prognosis. Thus, inactivation of RBSP3 might be one of the early events in cervical carcinogenesis. © 2009 Wiley‐Liss, Inc.
Influence of coherence between multiple cortical columns on alpha rhythm: A computational modeling study
Authors: Naruse Yasushi , Matani Ayumu , Miyawaki Yoichi , Okada Masato 
Published: November 2009

AbstractIn electroencephalographic (EEG) and magnetoencephalographic (MEG) signals, stimulus‐induced amplitude increase and decrease in the alpha rhythm, known as event‐related synchronization and desynchronization (ERS/ERD), emerge after a task onset. ERS/ERD is assumed to reflect neural processes relevant to cognitive tasks. Previous studies suggest that several sources of alpha rhythm, each of which can serve as an alpha rhythm generator, exist in the cortex. Since EEG/MEG signals represent spatially summed neural activities, ERS/ERD of the alpha rhythm may reflect the consequence of the interactions between multiple alpha rhythm generators. Two candidates modulate the magnitude of ERS/ERD: (1) coherence between the activities of the alpha rhythm generators and (2) mean amplitude of the activities of the alpha rhythm generators. In this study, we use a computational model of multiple alpha rhythm generators to determine the factor that dominantly causes ERS/ERD. Each alpha rhythm generator is modeled based on local column circuits in the primary visual cortex and made to interact with the neighboring generators through excitatory connections. We observe that the model consistently reproduces spontaneous alpha rhythms, event‐related potentials, phase‐locked alpha rhythms, and ERS/ERD in a specific range of connectivity coefficients. Independent analyses of the coherence and amplitude of multiple alpha rhythm generators reveal that the ERS/ERD in the simulated data is dominantly caused by stimulus‐induced changes in the coherence between multiple alpha rhythm generators. Nonlinear phenomena such as phase‐resetting and entrainment of the alpha rhythm are related to the neural mechanism underlying ERS/ERD. Hum Brain Mapp, 2010. © 2009 Wiley‐Liss, Inc.
Water and heat fluxes above a lowland dipterocarp forest in Peninsular Malaysia
Authors: Takanashi Satoru , Kosugi Yoshiko , Ohkubo Shinjiro , Matsuo Naoko , Tani Makoto , Nik Abdul Rahim 
Published: November 2009

AbstractWe measured the fluxes of sensible and latent heat between a low‐land dipterocarp forest in Peninsular Malaysia and the atmosphere. No clear seasonal or interannual changes in latent heat flux were found from 2003 to 2005, while sensible heat flux sometimes fluctuated depending on the fluctuation of incoming radiation between wet and dry seasons. The evapotranspiration rates averaged for the period between 2003 and 2005 were 2·77 and 3·61 mm day−1 using eddy covariance data without and with an energy balance correction, respectively. Average precipitation was 4·74 mm day−1. Midday surface conductance decreased with an increasing atmospheric water vapour pressure deficit and thus restricted the excess water loss on sunny days in the dry season. However, the relationship between the surface conductance and vapour pressure deficit did not significantly decline with an increase in volumetric soil water content even during a period of extremely low rainfall. Copyright © 2009 John Wiley & Sons, Ltd.
Observe, listen, wonder, and respond: A preliminary exploration of reflective function skills in early care providers
Authors: Tomlin Angela M. , Sturm Lynne , Koch Steven M. 
Published: November 2009

AbstractParents' behaviors demonstrating reflective capacity towards their children, parental reflective functioning, have been identified as central to both the formation of a secure attachment and therapeutic efforts to remediate attachment problems (Fonagy & Target, 2005; Sadler, Slade, & Mayes, 2006). We hypothesize that reflective skills in providers may be key elements in effecting change through the parent–professional relationship. As a first step, the present study examined early care and intervention providers' self‐report of the importance of reflective practice skills in their work with families of young children. We further examined whether provider characteristics such as professional affiliation and experience related to importance ratings. Lastly, we examined, in a preliminary fashion, whether provider valuing of reflective functioning skills is associated with reported practice using hypothetical vignettes drawn from common home‐visiting scenarios.
Perspectives on helping traumatized infants, young children, and their families
Authors: Osofsky Joy D. 
Published: November 2009

AbstractTraumatized infants, toddlers, and young children can affect adults in different ways but most often pull extreme reactions ranging from empathy to anger. It is important for those who support, intervene, and provide therapeutic services for traumatized young children and their families to understand that various traumatization, compassion, fatigue, and burnout can be an integral part of the work. All interveners, including child welfare workers, clinicians, home visitors, teachers, and even nontraditional responders, such as those who supervise therapeutic visitation, must find their own ways to cope with the overwhelming feelings that may be aroused. Support or regularly scheduled reflective supervision as well as self‐care is crucial for those who work with trauma. This paper describes helpful ways to intervene and provide support for infant mental health therapists and others working with traumatized young children who may experience vicarious traumatization.
Thinner inhalation effects on oxidative stress and DNA repair in a rat model of abuse
Authors: Martínez‐Alfaro Minerva , Cárabez‐Trejo Alfonso , Gallegos‐Corona Marco‐Antonio , Pedraza‐Aboytes Gustavo , Hernández‐Chan Nancy Georgina , Leo‐Amador Guillermo Enrique 
Published: November 2009

AbstractHumans can come into contact with thinner by occupational exposure or by intentional inhalation abuse. Numerous studies of workers for genotoxic effects of thinner exposure have yielded conflicting results, perhaps because co‐exposure to variable other compounds cannot be avoided in workplace exposure studies. In contrast, there is no data concerning the genotoxic effects of intentional inhalation abuse. The aim of this project was to examine the genotoxic effects of thinner inhalation in an animal model of thinner abuse (rats exposed to 3000 ppm toluene, a high solvent concentration over a very short, 15 min time period, twice a day for 6 weeks). The data presented here provides evidence that thinner inhalation in our experimental conditions is able to induce weight loss, lung abnormalities and oxidative stress. This oxidative stress induces oxidative DNA damage that is not a characteristic feature of genotoxic damage. No significant difference in DNA damage and DNA repair (biomarkers of genotoxicity) in lymphocytes from thinner‐treated and control rats was found. Lead treatment was used as a positive control in these assays. Finally, bone marrow was evaluated as a biomarker of cellular alteration associated with thinner inhalation. The observed absence of hemopoietic and genetic toxicity could be explained in part by the absence of benzene, the only carcinogenic component of thinner; however, benzene is no longer a common component of thinner. In conclusion, thinner did not cause genotoxic effects in an experimental model of intentional abuse despite the fact that thinner inhalation induces oxidative stress. Copyright © 2009 John Wiley & Sons, Ltd.
Bradykinin enhances cell migration in human chondrosarcoma cells through BK receptor signaling pathways
Authors: Yang Wei‐Hung , Chang Jung‐Tzu , Hsu Sheng‐Feng , Li Te‐Mao , Cho Der‐Yang , Huang Chun‐Yin , Fong Yi‐Chin , Tang Chih‐Hsin 
Published: November 2009

AbstractBradykinin (BK) is an inflammatory mediator, and shows elevated levels in regions of severe injury and inflammatory diseases. BK has recently been shown to be involved in carcinogenesis and cancer progression. In this study, we found that BK increased the migration and the expression of α2β1 integrin in human chondrosarcoma cells. We also found that human chondrosarcoma tissues had significantly higher expression of the B1 and B2 receptors comparing to normal cartilage. BK‐mediated migration and integrin up‐regulation was attenuated by B1 and B2 BK receptor siRNA or antagonist. Activations of phospholipase C (PLC), protein kinase Cδ (PKCδ), and NF‐κB pathways after BK treatment was demonstrated, and BK‐induced integrin expression and migration activity was inhibited by the specific inhibitor of PLC, PKCδ, and NF‐κB cascades. Taken together, our results indicated that BK enhances the migration of chondrosarcoma cells by increasing α2β1 integrin expression through the BK receptors/PLC/PKCδ/NF‐κB signal transduction pathway. J. Cell. Biochem. 109: 82–92, 2010. © 2009 Wiley‐Liss, Inc.
Identification of microRNAs regulated by activin A in human embryonic stem cells
Authors: Tsai Zong‐Yun , Singh Sher , Yu Sung‐Liang , Kao Li‐Pin , Chen Bo‐Zhi , Ho Bing‐Ching , Yang Pan‐Chyr , Li Steven Shoei‐Lung 
Published: November 2009

AbstractHuman embryonic stem (hES) cells have the capacities to propagate for extended periods and to differentiate into cell types from all three germ layers both in vitro and in vivo. These characteristics of self‐renewal and pluripotency enable hES cells having the potential to provide an unlimited supply of different cell types for tissue replacement, drug screening, and functional genomics studies. The hES‐T3 cells with normal female karyotype cultured on either mouse embryonic fibroblasts (MEF) in hES medium (containing 4 ng/ml bFGF) (T3MF) or feeder‐free Matrigel in MEF‐conditioned medium (supplemented with additional 4 ng/ml bFGF) (T3CM) were found to express very similar profiles of mRNAs and microRNAs, indicating that the unlimited self‐renewal and pluripotency of hES cells can be maintained by continuing culture on these two conditions. However, the expression profiles, especially microRNAs, of the hES‐T3 cells cultured on Matrigel in hES medium supplemented with 4 ng/ml bFGF and 5 ng/ml activin A (T3BA) were found to be different from those of T3MF and T3CM cells. In T3BA cells, four hES cell‐specific microRNAs miR‐372, miR‐302d, miR‐367, and miR‐200c, as well as three other microRNAs miR‐199a, miR‐19a, and miR‐217, were found to be up‐regulated, whereas five miRNAs miR‐19b, miR‐221, miR‐222, let‐7b, and let‐7c were down‐regulated by activin A. Thirteen abundantly differentially expressed mRNAs, including NR4A2, ERBB4, CXCR4, PCDH9, TMEFF2, CD24, and COX6A1 genes, targeted by seven over‐expressed miRNAs were identified by inverse expression levels of these seven microRNAs to their target mRNAs in T3BA and T3CM cells. The NR4A2, ERBB4, and CXCR4 target genes were further found to be regulated by EGF and/or TNF. The 50 abundantly differentially expressed genes targeted by five under‐expressed miRNAs were also identified. The abundantly expressed mRNAs in T3BA and T3CM cells were also analyzed for the network and signaling pathways, and roles of activin A in cell proliferation and differentiation were found. These findings will help elucidate the complex signaling network which maintains the self‐renewal and pluripotency of hES cells. J. Cell. Biochem. 109: 93–102, 2010. © 2009 Wiley‐Liss, Inc.