bluuebunny/crossref_metadata_2025_split huggingface dataset:
3D Microporous Base‐Functionalized Covalent Organic Frameworks for Size‐Selective Catalysis
Authors: Fang Qianrong , Gu Shuang , Zheng Jie , Zhuang Zhongbin , Qiu Shilun , Yan Yushan 
Published: February 2014

AbstractThe design and synthesis of 3D covalent organic frameworks (COFs) have been considered a challenge, and the demonstrated applications of 3D COFs have so far been limited to gas adsorption. Herein we describe the design and synthesis of two new 3D microporous base‐functionalized COFs, termed BF‐COF‐1 and BF‐COF‐2, by the use of a tetrahedral alkyl amine, 1,3,5,7‐tetraaminoadamantane (TAA), combined with 1,3,5‐triformylbenzene (TFB) or triformylphloroglucinol (TFP). As catalysts, both BF‐COFs showed remarkable conversion (96 % for BF‐COF‐1 and 98 % for BF‐COF‐2), high size selectivity, and good recyclability in base‐catalyzed Knoevenagel condensation reactions. This study suggests that porous functionalized 3D COFs could be a promising new class of shape‐selective catalysts.
Photocontrol Over Self‐Assembled Nanostructures of π–π Stacked Dyes Supported by the Parallel Conformer of Diarylethene
Authors: Yagai Shiki , Iwai Kazunori , Yamauchi Mitsuaki , Karatsu Takashi , Kitamura Akihide , Uemura Shinobu , Morimoto Masakazu , Wang Hao , Würthner Frank 
Published: February 2014

AbstractDiarylethenes (DAEs) have rarely been used in the design of photoresponsive supramolecular assemblies with a well‐defined morphology transition owing to rather small structural changes upon photoisomerization. A supramolecular design based on the parallel conformation of DAEs enables the construction of photoresponsive dye assemblies that undergo remarkable nanomorphology transitions. The cooperative stacking of perylene bisimide (PBI) dyes was used to stabilize the parallel conformer of DAE through complementary hydrogen bonds. Atomic force microscopy, UV/Vis spectroscopy, and molecular modeling revealed that our DAE and PBI building blocks coassembled in nonpolar solvent to form well‐defined helical nanofibers featuring J‐type dimers of PBI dyes. Upon irradiating the coassembly solution with UV and visible light in turn, a reversible morphology change between nanofibers and nanoparticles was observed. This system involves the generation of a new self‐assembly pathway by means of photocontrol.
Intraperitoneal injection of in vitro expanded Vγ9Vδ2 T cells together with zoledronate for the treatment of malignant ascites due to gastric cancer
Authors: Wada Ikuo , Matsushita Hirokazu , Noji Shuichi , Mori Kazuhiko , Yamashita Hiroharu , Nomura Sachiyo , Shimizu Nobuyuki , Seto Yasuyuki , Kakimi Kazuhiro 
Published: February 2014

AbstractMalignant ascites caused by peritoneal dissemination of gastric cancer is chemotherapy‐resistant and associated with poor prognosis. We conducted a pilot study to evaluate the safety of weekly intraperitoneal injections of in vitro expanded Vγ9Vδ2 T cells together with zoledronate for the treatment of such malignant ascites. Patient peripheral blood mononuclear cells were stimulated with zoledronate (5 μmol/L) and interleukin‐2 (1000 IU/mL). After 14 days culture, Vγ9Vδ2 T‐cells were harvested and administered intraperitoneally in four weekly infusions. The day before T‐cell injection, patients received zoledronate (1 mg) to sensitize their tumor cells to Vγ9Vδ2 T‐cell recognition. Seven patients were enrolled in this study. The number of Vγ9Vδ2 T‐cells in each injection ranged from 0.6 to 69.8 × 108 (median 59.0 × 108). There were no severe adverse events related to the therapy. Intraperitoneal injection of Vγ9Vδ2 T cells allows them access to the tumor cells in the peritoneal cavity. The number of tumor cells in the ascites was significantly reduced even after the first round of therapy and remained substantially lower over the course of treatment. IFN‐γ was detected in the ascites on treatment. Computed tomography revealed a significant reduction in volume of ascites in two of seven patients. Thus, injection of these antitumor Vγ9Vδ2 T‐cells can result in local control of malignant ascites in patients for whom no standard therapy apart from paracentesis is available. Adoptively transferred Vγ9Vδ2 T‐cells do indeed recognize tumor cells and exert antitumor effector activity in vivo, when they access to the tumor cells.
Towards a Psychology of Rural Development Processes and Interventions
Authors: Landini Fernando , Leeuwis Cees , Long Norman , Murtagh Sofía 
Published: February 2014

ABSTRACTA psychosocial approach to rural development and development interventions, which we designate as ‘psychology of rural development’ (PsyRD), does not yet exist as an area of research or intervention within the field of psychology or development studies, even though rural development is in part obviously shaped by psychosocial factors. Thus, in this discussion paper, we argue the need for PsyRD, explore how it may provide new insights and tools for analysis vis‐à‐vis rural development scenarios and issues of social equity and outline the shape that, in our view, such a psychology should take. First, the multiple dimensions of rural development and the many practical problems faced by rural development agents contain strong psychosocial elements that require contributions from psychology. Yet at the same time, the psychological literature on this topic contains many limitations and biases, which leads us to, in the second part of the paper lay the groundwork for a PsyRD that focuses on the importance of adopting a critical and interdisciplinary approach capable of dealing with complexity and multidetermination. Finally, we conclude by outlining the challenges of PsyRD. Copyright © 2014 John Wiley & Sons, Ltd.
Magnetically Stabilized Bed for Selective Hydrogenation of Benzene
Authors: Yu Lianqing , Wang Qingqing , Liu Chenguang , Zhang Yaping , Hao Lanzhong 
Published: February 2014

AbstractThe characteristics of a magnetically stabilized bed (MSB) were studied by cold‐model experiments, using water as liquid phase, hydrogen as gas phase, and γ‐Fe2O3 magnetic powder as solid phase. The fluidized state of different bed positions was investigated by testing the transmissible laser current. Effects of magnetic field intensity and gas flow rate on layer expansion states of the MSB were analyzed by color diagrams. A Ru‐Zn‐B amorphous alloy was prepared by chemical reduction. Selective hydrogenation of benzene was carried out in the MSB by adjusting the contact time between the catalysts and reactants through variations of reaction temperature, magnetic field current, and liquid hourly space velocity.
Arrest of Rolling Circle Amplification by Protein‐Binding DNA Aptamers
Authors: Wang Lida , Tram Kha , Ali Monsur M. , Salena Bruno J. , Li Jinghong , Li Yingfu 
Published: February 2014

AbstractCertain DNA polymerases, such as ϕ29 DNA polymerase, can isothermally copy the sequence of a circular template round by round in a process known as rolling circle amplification (RCA), which results in super‐long single‐stranded (ss) DNA molecules made of tandem repeats. The power of RCA reflects the high processivity and the strand‐displacement ability of these polymerases. In this work, the ability of ϕ29DNAP to carry out RCA over circular templates containing a protein‐binding DNA aptamer sequence was investigated. It was found that protein–aptamer interactions can prevent this DNA polymerase from reading through the aptameric domain. This finding indicates that protein‐binding DNA aptamers can form highly stable complexes with their targets in solution. This novel observation was exploited by translating RCA arrest into a simple and convenient colorimetric assay for the detection of specific protein targets, which continues to showcase the versatility of aptamers as molecular recognition elements for biosensing applications.
ChemInform Abstract: Two New Cesium Thiotellurates: Cs2[TeS2] and Cs2[TeS3].
Authors: Babo Jean‐Marie , Wolff Klaus K. , Schleid Thomas 
Published: February 2014

AbstractCs2[TeS2] (I) and Cs2[TeS3] (II) are prepared by reaction of stoichiometric amounts of Cs (in situ prepared by thermal decomposition of CsN3), Te, and S (glassy silica tube, 500 °C, 3 d, cooling rate of 5 °C/h).
ChemInform Abstract: K4Ni3O6 and KNa2Ni2O4, New Quasi One‐Dimensional Oxonickelates(II, III).
Authors: Duris Katarina , Nuss Juergen , Jansen Martin 
Published: February 2014

AbstractK4Ni3O6 (I) and KNa2Ni2O4 (II) are obtained by the azide/nitrate route starting from stoichiometric mixtures of KN3, KNO3, NaN3, NaNO3, and NiO (Ag crucible, complex heating schedule, annealing at 873 K, 30 h (I) and 500 h (II)) followed by oxidation at 873 K (15 h (I) and 100 h (II)).
ChemInform Abstract: The First Rare‐Earth Metal Telluride Chlorides, RTeCl (R: La, Ce, Pr, Nd).
Authors: Larres Markus , Pantenburg Ingo , Meyer Gerd 
Published: February 2014

AbstractLnTeCl (Ln: La, Ce, Pr, Nd) compounds are obtained as single crystals and/or powder samples by the reaction of anhydrous LnCl3, Ln metal, and Te (sealed Ta tubes in evacuated silica tubes, 1050 °C, 5 d, heating and cooling rate of 50 K/h).
ChemInform Abstract: The First Zeolitic Pure Germanate Built up from the Four‐Membered Ring — CCUT‐9 Showing High Surface Area.
Authors: Li Ya‐feng , Gao Wen‐yuan , Qin Xiao‐lin , Lu Jing‐jing , Liu Yan 
Published: February 2014

AbstractGe48O96 is solvothermally synthesized from a mixture of GeO2, NaOH, diethylenetriamine, and pyridine in the molar ratio of 1:4:8:30 (autoclave, 180 °C, 7—8 d, about 30% yield).
ChemInform Abstract: Lithium Mobility in the Stannides Li2CuSn2 and Li2AgSn2.
Authors: Winter Florian , Dupke Sven , Eckert Hellmut , Rodewald Ute Ch. , Poettgen Rainer 
Published: February 2014

AbstractLi2CuSn2 (I) and Li2AgSn2 (II) are prepared by induction‐melting (or in a muffle furnace) of the elements (sealed Nb ampoules, 1100 K for (I) or 900 K for (II), 3 h).
ChemInform Abstract: Comprehensive Uranium Thiophosphate Chemistry: Framework Compounds Based on Pseudotetrahedrally Coordinated Central Metal Atoms.
Authors: Neuhausen Christine , Hatscher Stephan T. , Panthoefer Martin , Urland Werner , Tremel Wolfgang 
Published: February 2014

AbstractThe new ternary compounds UP2S6 (I), UP2S7 (II), U(P2S6)2 (III), and U3(PS4)4 (IV) are prepared from polysulfide fluxes (evacuated quartz tube, 1.
ChemInform Abstract: Facile Deprotection of Dithioacetals by Using a Novel 1,4‐Benzoquinone/cat. NaI System.
Authors: Inamoto Kiyofumi , Yamada Tetsuya , Kato Sei‐ichi , Kikkawa Shoko , Kondo Yoshinori 
Published: February 2014

AbstractA wide range of different substituted aldehyde and ketone derivatives can be obtained from dithioacetals by using this general, efficient, and mild deprotection reaction.
ChemInform Abstract: A Single Enantiomer (99%) Directly from Continuous‐Flow Asymmetric Hydrogenation.
Authors: Duque Ruben , Pogorzelec Peter J. , Cole‐Hamilton David J. 
Published: February 2014

AbstractHydrogenation of dibutyl itaconate (I) under presented flow conditions gives only one chiral product namely dibutyl (S)‐(‐)‐methylsuccinate (II) with excellent enantioselectivity which can be directly recovered from a flow system.
ChemInform Abstract: Peptide‐Catalyzed Diastereo‐ and Enantioselective Cyclopropanation of Aromatic α,β‐Unsaturated Aldehydes.
Authors: Akagawa Kengo , Takigawa Shota , Nagamine Iman Sho , Umezawa Ryota , Kudo Kazuaki 
Published: February 2014

AbstractThe new method can also be applied to aliphatic acrylaldehydes giving products with low diastereoselectivity (no examples are shown).
ChemInform Abstract: Catalytic Enantioselective Dibromination of Allylic Alcohols.
Authors: Hu Dennis X. , Shibuya Grant M. , Burns Noah Z. 
Published: February 2014

AbstractThe new dibromination reaction employs a combination of dibromomalonate as the bromonium source and a titanium bromide species as the bromide source and a tartaric acid‐derived diol (TND) as chiral reagent/ligand.
ChemInform Abstract: Synthesis and Structures of Air‐Stable Binuclear Hafnocene Perfluorobutanesulfonate and Perfluorobenzenesulfonate and Their Catalytic Application in C—C Bond‐Forming Reactions.
Authors: Li Ningbo , Zhang Xiaohong , Xu Xinhua , Chen Yun , Qiu Renhua , Chen Jinyang , Wang Xie , Yin Shuang‐Feng 
Published: February 2014

AbstractThe air‐stable hafnocene Lewis acid catalyst is shown to be effective in Lewis acid‐catalyzed C—C bond forming reactions.
ChemInform Abstract: Direct Transformation of 5‐Hydroxymethylfurfural to the Building Blocks 2,5‐Dihydroxymethylfurfural (DHMF) and 5‐Hydroxymethyl Furanoic Acid (HMFA) via Cannizzaro Reaction.
Authors: Subbiah Sowmiah , Simeonov Svilen P. , Esperanca Jose M. S. S. , Rebelo Luis Paulo N. , Afonso Carlos A. M. 
Published: February 2014

AbstractThe reaction can be upscaled without the loss of yield.
ChemInform Abstract: Transition‐Metal‐Free Multicomponent Reactions Involving Arynes, N‐Heterocycles, and Isatins.
Authors: Bhunia Anup , Roy Tony , Pachfule Pradip , Rajamohanan Pattuparambil R. , Biju Akkattu T. 
Published: February 2014

AbstractWhen isoquinoline or quinoline derivatives are used as nucleophiles the reaction proceeds through 1,4‐dipolar intermediates yielding spiro‐indole‐oxazine derivatives.
ChemInform Abstract: Synthetically Useful Noncatalytic Strategy: A Stereocontrolled Rapid Cyclization of a Three Component System to Afford Hexahydropyrrolizines.
Authors: Sengupta Tista , Khamarui Saikat , Samanta Srikanta , Maiti Dilip K. 
Published: February 2014

AbstractThe three‐component annulation of proline esters (I) with unsaturated aldehydes (III) and maleimides or alkenes gives rise to pyrrolo[3,4‐a]pyrrolizines (IV) and hexahydropyrrolizines (VI) and (VIII) in high yields.
ChemInform Abstract: TMSCl‐Catalyzed Condensation of α‐Diketone Compounds with Urea/Thiourea Derivatives under Solvent‐Free Conditions.
Authors: Mobinikhaledi Akbar , Amiri Alireza Khajeh 
Published: February 2014

AbstractSimple, green and highly efficient one‐pot syntheses of glycoluril and imidazole derivatives via Tms‐Cl‐catalyzed reactions of α,β‐diketone derivatives with urea derivatives are developed.
ChemInform Abstract: Synthesis of Some Novel Fluoro Isoxazolidine and Isoxazoline Derivatives Using N‐Benzyl Fluoro Nitrone via Cycloaddition Reaction in Ionic Liquid.
Authors: Chakraborty Bhaskar , Luitel Govinda Prasad 
Published: February 2014

Abstract1,3‐Dipolar cycloaddition reactions of fluoro nitrone (I) with activated alkenes (II) and electron‐deficient alkynes (V) can be efficiently and conveniently proceed in ionic liquids to furnish isoxazolidines or isoxazolines, resp., in short reaction times and high product yields.
ChemInform Abstract: Amberlyst‐15‐Catalyzed Synthesis of 2‐Substituted 1,3‐Benzazoles in Water under Ultrasound.
Authors: Rambabu D. , Murthi P. Radha Krishna , Dulla Balakrishna , Rao M. V. Basaveswara , Pal Manojit 
Published: February 2014

AbstractA new and efficient method for the synthesis of 2‐substituted 1,3‐benzazoles under environmentally friendly conditions is developed.
ChemInform Abstract: An Efficient Synthesis of 3′‐Indolyl Substituted Pyrido[1,2‐a]benzimidazoles as Potential Antimicrobial and Antioxidant Agents.
Authors: Kathrotiya Harshad G. , Patel Manish P. 
Published: February 2014

AbstractA variety of new pyridobenzimidazole derivatives (IV) (18 examples) are synthesized via a multicomponent reaction and evaluated for their antibacterial and antioxidant activities.
ChemInform Abstract: Efficient Synthesis of Purine Derivatives by One‐Pot Three‐Component Mannich Reaction.
Authors: Zhang Qian , Ma Bai‐Wei , Huang Yong‐Zhen , Wang Qian‐Qian , Wang Xing‐Xing , Qu Gui‐Rong , Guo Hai‐Ming 
Published: February 2014

Abstract18 Purine derivatives are prepared by a one‐pot three‐component Mannich reaction.
ChemInform Abstract: Convenient Syntheses of Enantiopure 1,2‐Oxazin‐4‐yl Nonaflates and Phosphates and Their Palladium‐Catalyzed Cross‐Couplings.
Authors: Moinizadeh Nima , Klemme Robby , Kansy Marcus , Zimmer Reinhold , Reissig Hans‐Ulrich 
Published: February 2014

AbstractThe nonaflate (III) is prepared from the corresponding ketone (I) and converted into various 4‐substituted derivatives by Kumada‐Corriu, Sonogashira, Heck‐ or borylation reactions.
ChemInform Abstract: Reactions of an Isolable Dialkylsilylene with Aromatic Nitriles Providing a New Type of Heterosilole.
Authors: Wang Liliang , Chen Weifeng , Li Zhifang , Xiao Xu‐Qiong , Lai Guoqiao , Liu Xupeng , Xu Zheng , Kira Mitsuo 
Published: February 2014

AbstractThe reaction of silylene (I) with aromatic nitriles bearing electron‐donating substituents on the phenyl ring (II) leads to the desired 1,4‐diaza‐2‐siloles (III), whilst the reaction with aromatic nitriles with strong electron‐withdrawing substituents (IV) affords 1,3‐diaza‐2‐siloles (V).
Introduction of a New Technique to Measure the Coefficient of Restitution for Nanoparticles
Authors: Schöner Christian , Rennecke Stephan , Weber Alfred P. , Pöschel Thorsten 
Published: February 2014

AbstractA modified single‐stage low pressure impactor is described to measure the coefficient of normal restitution en for nanoparticles. The device is analysed numerically using CFD, and the gas flow inside the structured impaction plate is studied. A formula for the calculation of en is derived and first measurements of en for spherical silver particles are presented together with numerical data obtained from force‐based molecular dynamics simulations. Furthermore, the simulation data for en and the sticking probability are investigated in detail for the elastic, and partly for the plastic impaction regime.
Synthesis of Silica Catalyst Support Particles with Tunable Pore Size via Spray Drying and Calcination
Authors: Zeng Lintao , Weber Alfred P. 
Published: February 2014

AbstractPoröse SiO2‐Partikeln werden als Katalysatorträger häufig in chemischen Reaktionen eingesetzt. Hier wurden kugelförmige poröse SiO2‐Agglomerate mit einstellbarer Porengröße durch einen aerosol‐basierten Prozess hergestellt. Die Herstellung erfolgte über die Sprühtrocknung einer kolloidalen SiO2‐Suspension, mit Polyvinylpyrrolidin (PVP) als Templat. Nach der Sprühtrocknung wurden die Partikeln auf einem Filter gesammelt und anschließend in einem Muffelofen kalziniert, um die Template zu entfernen. Porengröße und Porosität der SiO2‐Agglomerate sind durch die Menge an PVP und die SiO2‐Primärpartikelgröße einstellbar.
Ultra‐wideband multiple‐access relay channel with correlated noises and its diversity analysis
Authors: Sahebalam A. , Osmani‐Bojd M. , Hodtani G.A. 
Published: February 2014

SummaryIn this study, we investigate a new and practical model, ultra‐wideband Slepian–Wolf multiple‐access relay channel (UWB‐SW‐MARC) with correlated noises at the relay and receiver, which includes two important models, that is, UWB‐SW multiple‐access channel with correlated noises and UWB relay channel with correlated noises, as its special cases. We derive a general rate region for UWB‐SW‐MARC and obtain an outer bound for this model and, thereby, prove two certain capacity theorems for two important and different classes of MARC. Also, we analyze outage probability and diversity gain as the practically important concepts in wireless communications and prove that adding a relay to the multiple‐access channel improves the diversity gain. Finally, we evaluate some results numerically and illustrate that the noise correlation coefficient plays an important role in determining the relay position, and show that the channel performance depends on the noise variances. Copyright © 2014 John Wiley & Sons, Ltd.
Working memory and inhibitory control in visually guided manual search in toddlers
Authors: Jenkins Iris L. , Berthier Neil E. 
Published: February 2014

ABSTRACTToddlers undergo a transition at about 2.5–3 years‐of‐age that dramatically improves their ability to search for hidden objects. The development of these skills seems to depend on the development of executive functions. We used a correlational design to investigate which components of executive function might be involved in this improved search. Three tests of working memory did not correlate with search performance, but a test of inhibitory/cognitive control was associated with performance increases. Improvement seemed to be the result of control of visual attention and responding in the face of misleading visual events and not the result of improvements in working memory. © 2014 Wiley Periodicals, Inc. Dev Psychobiol 56: 1252–1262, 2014.
Local adaptations to frost in marginal and central populations of the dominant forest tree Fagus sylvatica L. as affected by temperature and extreme drought in common garden experiments
Authors: Kreyling Juergen , Buhk Constanze , Backhaus Sabrina , Hallinger Martin , Huber Gerhard , Huber Lukas , Jentsch Anke , Konnert Monika , Thiel Daniel , Wilmking Martin , Beierkuhnlein Carl 
Published: February 2014

AbstractLocal adaptations to environmental conditions are of high ecological importance as they determine distribution ranges and likely affect species responses to climate change. Increased environmental stress (warming, extreme drought) due to climate change in combination with decreased genetic mixing due to isolation may lead to stronger local adaptations of geographically marginal than central populations. We experimentally observed local adaptations of three marginal and four central populations of Fagus sylvatica L., the dominant native forest tree, to frost over winter and in spring (late frost). We determined frost hardiness of buds and roots by the relative electrolyte leakage in two common garden experiments. The experiment at the cold site included a continuous warming treatment; the experiment at the warm site included a preceding summer drought manipulation. In both experiments, we found evidence for local adaptation to frost, with stronger signs of local adaptation in marginal populations. Winter frost killed many of the potted individuals at the cold site, with higher survival in the warming treatment and in those populations originating from colder environments. However, we found no difference in winter frost tolerance of buds among populations, implying that bud survival was not the main cue for mortality. Bud late frost tolerance in April differed between populations at the warm site, mainly because of phenological differences in bud break. Increased spring frost tolerance of plants which had experienced drought stress in the preceding summer could also be explained by shifts in phenology. Stronger local adaptations to climate in geographically marginal than central populations imply the potential for adaptation to climate at range edges. In times of climate change, however, it needs to be tested whether locally adapted populations at range margins can successfully adapt further to changing conditions.