bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis, Crystal Structure, and Magnetic Properties of a Bis‐Dinuclear Oxo‐Bridged Iron(III) Complex with p‐Sulfonatocalix[4]arene
Authors: Mattoussi Nabila , Pilet Guillaume , Novitchi Ghenadie , Meganem Faouzi , Luneau Dominique 
Published: March 2013

AbstractReaction of sodium p‐sulfonatocalix[4]arene (Na4C4AS) with iron(III) nitrate and 1,10‐phenanthroline in water affords a compound in which a coordinated p‐sulfonatocalix[4]arene anion (C4AS4–) bridges two oxo‐bridged iron(III) dinuclear units, {FeIII2(μ‐O)(H2O)5(phen)2}. The crystal structure of the compound also reveals noncoordinated C4AS4– anions and crystallization water molecules. The coordinated p‐sulfonatocalix[4]arene links the {FeIII2(μ‐O)(H2O)5(phen)2} dinuclear units through two of the four sulfonate groups in the 1,2 (syn) and 1,3 (anti) modes. The complete structure may be viewed as Fe‐hinged calixarene bicapsules. The study of the magnetic susceptibility reveals strong antiferromagnetic interactions between the iron(III) ions within the dinuclear units. Because the structural features of the two Fe–O–Fe oxo bridges are very similar, the magnetic data can be fitted well by considering one exchange coupling constant, J = –127(1) cm–1, which is in agreement with previously found values for oxo‐bridged diiron(III) complexes with similar structural features. This opens up the possibility of polynuclear complexes stabilized in water and of control of their magnetic properties.
New biobased carboxylic acid hardeners for epoxy resins
Authors: Jaillet Fanny , Desroches Myriam , Auvergne Rémi , Boutevin Bernard , Caillol Sylvain 
Published: March 2013

AbstractSoybean oil was modified into a novel biobased polyacid hardener by thiol‐ene coupling with thioglycolic acid. The structure of the initial soybean oil and polyacid triglyceride was carefully analyzed using 1H NMR and titration. The thermal crosslinking reaction between acid hardener and epoxidized resin was studied by differential scanning calorimetry (DSC) and rheology. Then, the synthesized biobased acid hardener was employed as a novel curing agent for bisphenol A diglycidyl ether to elaborate new partially biobased materials. These materials, formulated in stoichiometry ratio, were characterized by DSC, thermogravimetry analyses, dynamic mechanical analyses and exhibit interesting properties for coatings.Practical applications: The products of the chemistry described in this contribution, i.e., polyacid from soybean oil and thioglycolic acid, provide biobased building blocks for further epoxy resin syntheses by reaction with epoxy groups. The obtained epoxy resins are partially biobased and may be applied as binders and coatings.
Crystal polymorph structure determined for extra virgin olive oil
Authors: Chiavaro Emma 
Published: March 2013

AbstractNo literature data were available on the crystal polymorph structure associated with the crystallization/melting of TAG fractions of extra virgin olive oil until the publication of the article by Barba, Arrighetti and Calligaris in this issue of the European Journal of Lipid Science and Technology [p. 322–329]. The authors determined crystal structure of extra virgin olive oil TAGs using DSC coupled with XRD technique. These findings are of great importance as an increasing number of formulated foods (e.g. salad dressings, sauces, chilled and frozen ready‐to‐eat products) and new products are nowadays produced with this high quality vegetable oil as lipid phase. The significance of these results is underlined in this commentary.See accompanying article by Barba et al. [p. 322–329], http://dx.doi.org/10.1002/ejlt.201200259
Synthesis and Characterization of 2D‐D‐π‐A‐Type Organic Dyes Bearing Bis(3,6‐di‐tert‐butylcarbazol‐9‐ylphenyl)aniline as Donor Moiety for Dye‐Sensitized Solar Cells
Authors: Khanasa Tanika , Jantasing Nittaya , Morada Somphob , Leesakul Nararak , Tarsang Ruangchai , Namuangruk Supawadee , Kaewin Tinnagon , Jungsuttiwong Siriporn , Sudyoadsuk Taweesak , Promarak Vinich 
Published: March 2013

AbstractA series of novel 2D‐D‐π‐A‐type organic dyes, namely CCTTnA (n = 1–3), bearing bis(3,6‐di‐tert‐butylcarbazol‐9‐ylphenyl)aniline as an electron‐donor moiety (2D‐D), oligothiophene segments with a number of thiophene units from one to three units as π‐conjugated spacers (π), and cyanoacrylic acid as the electron acceptor (A) were synthesized and characterized as dye sensitizers for dye‐sensitized solar cells (DSSCs). These compounds exhibit high thermal and electrochemical stability. Detailed investigations of these dyes reveal that both peripheral carbazole donors (2D) have beneficial influence on the red‐shifted absorption spectrum of the dye in solution and dye adsorbed on TiO2 film, and the broadening of the incident monochromatic photon‐to‐current conversion efficiency (IPCE) spectra of the DSSCs, leading to enhanced energy conversion efficiency (η). Among these dyes, CCTT3A shows the best photovoltaic performance, and a maximal incident monochromatic photon‐to‐current conversion efficiency (IPCE) value of 80 %, a short‐circuit photocurrent density (Jsc) of 9.98 mA cm–2, open‐circuit voltage (Voc) of 0.70 V, and fill factor (FF) of 0.67, corresponding to an overall conversion efficiency η of 4.6 % were achieved. This work suggests that organic dyes based on this type of donor moiety or donor molecular architecture are promising candidates for improved performance DSSCs.
Recognising the Symptoms: How Common Are Eating Disorders in Pregnancy?
Authors: Easter Abigail , Bye Amanda , Taborelli Emma , Corfield Freya , Schmidt Ulrike , Treasure Janet , Micali Nadia 
Published: March 2013

AbstractObjectivesThis study aimed to investigate eating disorder diagnostic status and related symptoms in early pregnancy.MethodsPregnant women (n=739), attending their first routine antenatal scan, were assessed using an adapted version of the Eating Disorder Diagnostic Scale (EDDS). Prevalence estimates and eating disorder symptoms were assessed during the first 3 months of pregnancy and, retrospectively, in the 6 to 12 months prior to pregnancy.ResultsDuring pregnancy 7.5% of women met diagnostic criteria for an eating disorder, compared to prepregnancy prevalence of 9.2%. Approximately one quarter (23.4%) of women reported high weight and shape concern during pregnancy; binge eating was endorsed by 8.8%, and 2.3% of women engaged in regular compensatory behaviours.ConclusionsEating disorders are more common than previously thought in pregnancy. There is a clinical need for increased understanding of eating disorder symptomatology during pregnancy and for appropriate screening tools to be incorporated into antenatal care. Copyright © 2013 John Wiley & Sons, Ltd and Eating Disorders Association.
The Case‐Only Test for Gene–Environment Interaction is Not Uniformly Powerful: An Empirical Example
Authors: Wu Chen , Chang Jiang , Ma Baoshan , Miao Xiaoping , Zhou Yifeng , Liu Yu , Li Yun , Wu Tangchun , Hu Zhibin , Shen Hongbing , Jia Weihua , Zeng Yixin , Lin Dongxin , Kraft Peter 
Published: March 2013

ABSTRACTThe case‐only test has been proposed as a more powerful approach to detect gene–environment (G × E) interactions. This approach assumes that the genetic and environmental factors are independent. Although it is well known that Type I error rate will increase if this assumption is violated, it is less widely appreciated that G × E correlation can also lead to power loss. We illustrate this phenomenon by comparing the performance of the case‐only test to other approaches to detect G × E interactions in a genome‐wide association study (GWAS) of esophageal squamous‐cell carcinoma (ESCC) in Chinese populations. Some of these approaches do not use information on the correlation between exposure and genotype (standard logistic regression), whereas others seek to use this information in a robust fashion to boost power without increasing Type I error (two‐step, empirical Bayes, and cocktail methods). G × E interactions were identified involving drinking status and two regions containing genes in the alcohol metabolism pathway, 4q23 and 12q24. Although the case‐only test yielded the most significant tests of G × E interaction in the 4q23 region, the case‐only test failed to identify significant interactions in the 12q24 region which were readily identified using other approaches. The low power of the case‐only test in the 12q24 region is likely due to the strong inverse association between the single nucleotide polymorphism (SNPs) in this region and drinking status. This example underscores the need to consider multiple approaches to detect G × E interactions, as different tests are more or less sensitive to different alternative hypotheses and violations of the G × E independence assumption.
Depositional architecture, provenance, and tectonic/eustatic modulation of Miocene submarine fans in the Shikoku Basin: Results from Nankai Trough Seismogenic Zone Experiment
Authors: Pickering Kevin T. , Underwood Michael B. , Saito Sanny , Naruse Hajime , Kutterolf Steffen , Scudder Rachel , Park Jin‐Oh , Moore Gregory F. , Slagle Angela 
Published: March 2013

AbstractSeismostratigraphy, coring, and logging while drilling during Integrated Ocean Drilling Program Expeditions 319, 322, and 333 (Sites C0011/C0012) show three Miocene submarine fans in the NE Shikoku Basin, with broadly coeval deposits at Ocean Drilling Program Site 1177 and Deep Sea Drilling Project Site 297 (NW Shikoku Basin). The sediment dispersal patterns have major implications for paleogeographies at that time. The oldest, finer‐grained (Kyushu) fan has sheet‐like geometry; quartz‐rich flows were fed mostly from an ancestral landmass in the East China Sea. During prolonged hemipelagic mud deposition at C0011‐C0012 (~12.2 to 9.1 Ma), sand supply continued at Sites 1177 and 297. Sand delivery to much of the Shikoku Basin halted during a phase of sinistral strike slip to oblique plate motion, after which the Daiichi Zenisu Fan (~9.1 to 8.0 Ma) was fed by submarine channels. The youngest fan (Daini Zenisu; ~8.0 to 7.6 Ma) has sheet‐like geometry with thick‐bedded, coarse‐grained pumiceous sandstones. The pumice fragments were fed from a mixed provenance that included the collision zone of the Izu‐Bonin and Honshu Arcs. The shift from channelized to sheet‐like flows was favored by renewal of relatively rapid northward subduction, which accentuated the trench as a bathymetric depression. Increased sand supply appears to correlate with long‐term eustatic lowstands of sea level. The stratigraphic position and 3‐D geometry of the sandbodies have important implications for subduction‐related processes, including the potential for focused fluid flow and fluid overpressures above and below the plate boundary fault: In sheet‐like sands, pathways for fluid flow have greater horizontal permeability compared with those in channel sands.
Geochemical insight into differences in the physical structures and dynamics of two adjacent maar lakes at Mt. Vulture volcano (southern Italy)
Authors: Caracausi A. , Nicolosi M. , Nuccio P. M. , Favara R. , Paternoster M. , Rosciglione A. 
Published: March 2013

AbstractWe report on the first geochemical investigation of the Monticchio maar lakes (Mt. Vulture volcano, southern Italy) covering an annual cycle that aimed at understanding the characteristic features of the physical structures and dynamics of the two lakes. We provide the first detailed description of the lakes based on high‐resolution conductivity‐temperature‐depth (CTD) profiles, chemical and isotopic (H and O) compositions of the water, and the amounts of dissolved gases (e.g., He, Ar, CH4, and CO2). The combined data set reveals that the two lakes, which are separated by less than 200 m, exhibit different dynamics: one is a meromictic lake, where the waters are rich in biogenic and mantle‐derived gases, while the other is a monomictic lake, which exhibits complete turnover of the water in winter and the release of dissolved gases. Our data strongly suggest that the differences in the dynamics of the two lakes are due to different density profiles affected by dissolved solutes, mainly Fe, which is strongly enriched in the deep water of the meromictic lake. A conceptual model of water balance was constructed based on the correlation between the chemical composition of the water and the hydrogen isotopic signature. Gas‐rich groundwaters that feed both of the lakes and evaporation processes subsequently modify the water chemistry of the lakes. Our data highlight that no further potential hazardous accumulation of lethal gases is expected at the Monticchio lakes. Nevertheless, geochemical monitoring is needed to prevent the possibility of vigorous gas releases that have previously occurred in historical time.
On the 2012 record low Arctic sea ice cover: Combined impact of preconditioning and an August storm
Authors: Parkinson Claire L. , Comiso Josefino C. 
Published: March 2013

AbstractA new record low Arctic sea ice extent for the satellite era, 3.4 × 106 km2, was reached on 13 September 2012; and a new record low sea ice area, 3.0 × 106 km2, was reached on the same date. Preconditioning through decades of overall ice reductions made the ice pack more vulnerable to a strong storm that entered the central Arctic in early August 2012. The storm caused the separation of an expanse of 0.4 × 106 km2 of ice that melted in total, while its removal left the main pack more exposed to wind and waves, facilitating the main pack's further decay. Future summer storms could lead to a further acceleration of the decline in the Arctic sea ice cover and should be carefully monitored.
Consistent large‐scale temperature responses in warm and cold climates
Authors: Izumi Kenji , Bartlein Patrick J. , Harrison Sandy P. 
Published: March 2013

AbstractClimate‐model simulations of the large‐scale temperature responses to increased radiative forcing include enhanced land‐sea contrast, stronger response at higher latitudes than in the tropics, and differential responses in warm and cool season climates to uniform forcing. Here we show that these patterns are also characteristic of model simulations of past climates. The differences in the responses over land as opposed to over the ocean, between high and low latitudes, and between summer and winter are remarkably consistent (proportional and nearly linear) across simulations of both cold and warm climates. Similar patterns also appear in historical observations and paleoclimatic reconstructions, implying that such responses are characteristic features of the climate system and not simple model artifacts, thereby increasing our confidence in the ability of climate models to correctly simulate different climatic states.
One‐Pot, Three‐Component Synthesis of Novel Spiro[3H‐indole‐3,2′‐thiazolidine]‐2,4′(1H)‐diones in an Ionic Liquid as a Reusable Reaction Media
Authors: Jain Renuka , Sharma Kanti , Kumar Deepak 
Published: March 2013

AbstractA facile one‐pot, three‐component protocol for the synthesis of novel spiro[3H‐indole‐3,2′‐thiazolidine]‐2,4′(1H)‐diones by condensing 1H‐indole‐2,3‐diones, 4H‐1,2,4‐triazol‐4‐amine and 2‐sulfanylpropanoic acid in [bmim]PF6 (1‐butyl‐3‐methyl‐1H‐imidazolium hexafluorophosphate) as a recyclable ionic‐liquid solvent gave good to excellent yields in the absence of any catalyst (Scheme 1 and Table 2). The advantages of this protocol over conventional methods are the mild reaction conditions, the high product yields, a shorter reaction time, as well as the eco‐friendly conditions.
Torreyanoxane, a New 3,4‐Secoglutinane Triterpenoid Isolated from the Pulp of Torreya nucifera
Authors: Cao Cong‐Mei , Wu Yi‐Bing , Guo Rui‐Xia , Dong Mei , Sauriol Françoise , Huo Chang‐Hong , Shi Qing‐Wen , Yamada Teiko , Kiyota Hiromasa , Gu Yu‐Cheng , Cong Bin 
Published: March 2013

AbstractTorreyanoxane, a novel 3,4‐secoglutinane triterpenoid, was isolated from the pulp of Torreya nucifera. The structure was determined on the basis of spectroscopic methods.
Synthesis of Dimethyl Tetraarylphthalates by SuzukiMiyaura Reactions of Dimethyl Tetrabromophthalate
Authors: Eleya Nadi , Patonay Tamás , Villinger Alexander , Langer Peter 
Published: March 2013

AbstractTetraarylphthalates were prepared by SuzukiMiyaura reactions of dimethyl tetrabromophthalate.
Synthesis of 10‐Aryl‐ and 10‐(Arylmethyl)acridin‐9(10H)‐ones via the Reaction of (2‐Fluorophenyl)(2‐halophenyl)methanones with Benzenamines and Arylmethanamines
Authors: Kobayashi Kazuhiro , Nakagawa Kazuhiro , Yuba Shohei , Komatsu Toshihide 
Published: March 2013

AbstractThe reaction of 1‐fluoro‐2‐lithiobenzenes, generated from 1‐bromo‐2‐fluorobenzenes 1 and BuLi, with 2‐halobenzaldehydes and subsequent oxidation of the resulting alcohols 2 afforded (2‐fluorophenyl)(2‐halophenyl)methanones 3, which, on treatment with benzenamines or arylmethanamines, followed by NaH, gave rise efficiently to 10‐aryl‐ or 10‐(arylmethyl)acridin‐9(10H)‐ones (5 or 7), respectively.
The impact of total quality service (TQS) on healthcare and patient satisfaction: An empirical study of Turkish private and public hospitals
Authors: Bakan Ismail , Buyukbese Tuba , Ersahan Burcu 
Published: March 2013

SummaryThis paper attempts to measure patients' perceptions of the quality of services in public and private healthcare centers in Turkey. The main aim was to examine the impact of the dimensions of patient‐perceived total quality service (TQS) on patients' satisfaction. The research framework and hypotheses are derived from a literature review of service quality and quality in the healthcare industry. The research data were collected through questionnaires and then statistically analyzed using descriptive statistics, Pearson product moment correlation and linear regression. The results suggest that service quality perceptions positively influence patient satisfaction with overall hospital care (SOHC). The most important factors identified in the regression model regarding patient SOHC are the quality of the hospital's social responsibility, administrative processes and overall experience of medical care received. These factors explain 74% of the variance in SOHC. The findings of the study can be used to improve TQS in both private and public hospitals. Copyright © 2013 John Wiley & Sons, Ltd.
Axotomy‐induced changes in activity‐dependent slowing in peripheral nerve fibres: Role of hyperpolarization‐activated/HCN channel current
Authors: Mazo I. , Rivera‐Arconada I. , Roza C. 
Published: March 2013

AbstractBackgroundSlowing refers to the gradual decrease in conduction velocity evoked by repetitive electrical stimuli. The underlying mechanisms are still poorly understood, and its physiological/pathological relevance scarcely discussed; however, changes in axonal conduction properties might unmask abnormal nociceptor function and alter the encoding time window at the spinal cord.MethodsHere, we characterized and compared the slowing in isolated units recorded from intact and axotomized saphenous nerves from mice, in vitro. We evaluated the role of hyperpolarization‐activated/HCN channel current, Ih, in the generation of slowing, by examining the effect of the specific Ih blocker ZD7288.ResultsBased on their degree of slowing, intact C‐fibres were classified as presumed nociceptors or non‐nociceptors (>13% or <7% latency increase, respectively). Upon ZD7288 treatment, slowing was significantly augmented in 19/25 of the presumed C‐nociceptors. In nerve‐end neuromas, axotomized C‐fibres could not be classified by their degree of slowing, which, in addition, was unrelated to the presence of ectopic mechanosensitivity. Axotomized fibres showed a ∼2.5‐fold reduction in their slowing as compared with intact units and the effects of ZD7288 were more prominent, both in magnitude and percentage of sensitive fibres. Interestingly, in control conditions, all fibres sensitive to ZD7288 were more resistant to slowing.ConclusionsUnder our experimental conditions, slowing seems largely dependent on functional Ih. The marked decrease in slowing after axotomy in C‐fibres fits with the increased expression of functional hyperpolarization‐activated/HCN channel current and may underlie the analgesic effects of the specific Ih blocker ZD7288 previously described in neuropathic pain models.
Optoacoustic imaging of blood perfusion: Techniques for intraoperative tissue viability assessment
Authors: Dima Alexander , Gateau Jérôme , Claussen Jing , Wilhelm Dirk , Ntziachristos Vasilis 
Published: March 2013

AbstractReliably assessing tissue viability during surgery is of major importance in surgical procedures. The most basic requirement for viability is sufficient oxygen supply to the tissue. Therefore it is highly desirable to visualize in real‐time the dynamic process of blood perfusion up to and within the microvasculature. A modality sensitive to structures in the range of few hundred micrometers and offering high contrast to the embedding tissue is then needed. To this end, a number of methods have been developed, but have had no significant impact on the clinical routine due to various deficiencies. In this paper we demonstrate the applicability of optoacoustic imaging, which combines ultrasonic resolution with strong optical contrast. A method for optoacoustic perfusion assessment, based on a local and repeatable injection of saline, was proposed and assessed ex‐vivo on large pig bowels and in‐vivo in mouse tails. The obtained dynamic perfusion images highlight the method's potential to enable immediate and quantitative assessment of tissue viability during surgery. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Zap70 inhibits Syk‐mediated osteoclast function
Authors: Zou Wei , Croke Monica , Fukunaga Tomohiro , Broekelmann Thomas J. , Mecham Robert P. , Teitelbaum Steven L. 
Published: March 2013

AbstractThe αvβ3 integrin stimulates the resorptive capacity of the differentiated osteoclast (OC) by organizing its cytoskeleton via the tyrosine kinase, Syk. Thus, Syk‐deficient OCs fails to spread or form actin rings, in vitro and in vivo. The Syk family of tyrosine kinases consists of Syk itself and Zap70 which are expressed by different cell types. Because of their structural similarity, and its compensatory properties in other cells, we asked if Zap70 can substitute for absence of Syk in OCs. While expression of Syk, as expected, normalizes the cytoskeletal abnormalities of Syk−/− OCs, Zap70 fails do so. In keeping with this observation, Syk, but not Zap70, rescues αvβ3 integrin‐induced SLP76 phosphorylation in Syk−/− OCs. Furthermore the kinase sequence of Syk partially rescues the Syk−/− phenotype but full normalization also requires its SH2 domains. Surprisingly, expression of Zap70 inhibits WT OC spreading, actin ring formation and bone resorptive activity, but not differentiation. In keeping with arrested cytoskeletal organization, Zap70 blocks integrin‐activated endogenous Syk and Vav3, SLP76 phosphorylation. Such inhibition requires Zap70 kinase activity, as it is abolished by mutation of the Zap70 kinase domain. Thus, while the kinase domain of Syk is uniquely required for OC function that of Zap70 inhibits it. J. Cell. Biochem. 114: 1871–1878, 2013. © 2013 Wiley Periodicals, Inc.