bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thermal stability and mechanical properties of room temperature vulcanized silicone rubbers
Authors: Wang J. J. , Feng La‐Jun , Lei A.‐Li , Yan Ai‐Jun , Wang Xiao‐Jing 
Published: December 2011

AbstractBased on much of the importance of RTV on the field of self‐cleaning application for its nontoxic, tasteless, and thermal stability, the effects of D4‐SiO2 on mechanical properties, Al(OH)3 and decabromodiphenyl oxide ethyl(DBDPE) on flame retardant property of RTV matrix were investigated firstly. Then, a new kind of complex fire retardants was compounded. The morphology of additives and fracture appearance of composites were demonstrated by SEM. The hot property of RTV‐based composites was outlined by TG. It is found that D4‐SiO2/Al(OH)3/DBDPE/Sb2O3/RTV composites were of better comprehensive performances in mechanical property, hot property, fire resistance property, and insulating property, which presented tear 26.73 kN/m of strength, 279.8% of elongation at break, 2.81 MPa of tensile strength, FV‐0 at the level of flame retardant property, 46 of Oxygen index (OI) 3.03 × 1015 Ωm of Volume electric resistivity, the range of decomposition temperature was 370°C to 650°C, and the percentage of remain weight was 26.4%. Those properties was acquired on the condition of 11 wt % D4‐SiO2 + 20 wt % Al(OH)3 + 15 wt % DBDPE+ Sb2O3 at the amount of 3.0 wt % to 3.7 wt %. This investigation leads the authors to a conclusion that D4‐SiO2/Al(OH)3/DBDPE/Sb2O3 is a kind of better combination modifier than anyone kind of which in comprehensive properties for RTV. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
Mechanical properties of recycled LDPE/EVA/ground tyre rubber blends: Effects of EVA content and postirradiation
Authors: Mészáros László , Fejős Márta , Bárány Tamás 
Published: December 2011

AbstractThermoplastic elastomers were prepared from recycled low density polyethylene [rLDPE] and virgin low density polyethylene (LDPE), respectively, ground tyre rubber (GTR), and ethylene vinyl acetate (EVA) copolymer. The amounts of the rLDPE and GTR were fixed at 40 and 30 wt %, respectively, in the formulations, whereas the LDPE and EVA contents varied each between 0 and 30 wt %. The fresh LDPE served for reduction of the melt viscosity and EVA was used for improving the elastomeric properties. Blends of different compositions (by varying the LDPE/EVA ratio) were produced by twin‐screw extrusion and pelletized. Specimens were produced by injection molding and subjected to tensile and instrumented falling weight impact (IFWI) tests. To improve the mechanical performance of the blends, the injection molded specimens were electron beam irradiated at 150 kGy absorbed dose. Static tensile and hysteresis, IFWI and dynamic mechanical thermal analysis tests were performed on the specimens and the fracture surface was inspected with a scanning electron microscope. The results indicated that better rubber‐like properties were achieved with increasing EVA content. Moreover, postirradiation proved to be very beneficial, especially for blends containing relative high amounts of EVA. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
Imparting antifouling properties of silicone hydrogels by grafting poly(ethylene glycol) methyl ether acrylate initiated by UV light
Authors: Wang Jing Jing , Liu Fang 
Published: December 2011

AbstractBoth hydrophilic and antifouling surfaces were prepared on silicone hydrogels with poly(ethylene glycol) methyl ether acrylate (PEGMA) grafted by UV‐induced radical polymerization. The PEGMA‐grafted silicone hydrogels were characterized by graft yield and static water contact angle measurements. According to the results, the graft yield reached a maximum at 8 min of UV exposure time and 20 wt% PEGMA concentration. The modified silicone hydrogels possessed hydrophilic surfaces with the lowest water contact angle of 36°. The oxygen permeability and transparency of the PEGMA‐grafted silicone hydrogels were as high as the unmodified silicone hydrogel. The mechanical property of silicone hydrogels was maintained at about 95% of the tensile strength and elastic modulus after the PEGMA grafting. The in vitro single protein adsorption on the PEGMA‐grafted silicone hydrogels decreased by 70–80% compared to the unmodified silicone hydrogel. The PEGMA‐grafted silicone hydrogel is expected to be a novel biomaterial, which possesses excellent surface hydrophilicity, antifouling property, oxygen permeability, and mechanical property. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
Effect of morphology of polyaniline nanomaterials on cure kinetics and properties of liquid crystalline epoxy nanocomposite
Authors: Bae Joonwon 
Published: December 2011

AbstractThree types of polyaniline (PANI) nanomaterials, nanorods with an average diameter of 30 nm, and nanospheres with average diameter of 30 and 300 nm were synthesized and employed as a curing agent and conducting nanofiller to prepare liquid crystalline epoxy (LCE)/polyaniline nanocomposites. The morphological effect of PANI nanomaterials on the cure behavior of LCE/PANI systems was extensively investigated using dynamic and isothermal differential scanning calorimetry (DSC) analysis. Dynamic DSC results showed that PANI nanorod was a more effective curing agent than nanospheres, because nanospheres retarded cure reaction to some extent compared with PANI nanorods. Isothermal DSC demonstrated that degree of cure was independent of PANI nanoshape. The effect of PANI morphology on the performance of cured LCE/PANI nanocomposites was also examined. Thermogravimetric analysis (TGA) illustrated that the LCE/PANI nanorod system exhibited an enhanced thermal stability than LCE/PANI nanospheres. LCE/PANI nanocomposites showed enhanced electrical conductivity regardless of PANI type compared with conventional epoxy composites (10−5∼ 10−4 S cm−1). Scanning electron microscopy (SEM) revealed that macrophase separation was not observed in LCE/PANI nanocomposites. PANI nanorods are advantageous for improving the performances of LCE/PANI nanocomposites. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
Dorsal Fronto‐Parietal Connections of the Human Brain: A Fiber Dissection Study of Their Composition and Anatomical Relationships
Authors: Maldonado Igor L. , Mandonnet Emmanuel , Duffau Hugues 
Published: December 2011

AbstractThe goal of this study was to detail the composition of dorsal fronto‐parietal connections in the human brain, focusing on the dorsal component of superior longitudinal fasciculus (SLF), short association fibers, their three‐dimensional organization, and relationships with adjacent projection and commissural fibers. Ten human cerebral hemispheres (five left and five right) were obtained from necropsy specimens. The technique for specimen preparation was adapted from that previously described by Ludwig and Klingler for spreading groups of white matter fibers, rendering tracts visible and dissectible. Near the superior border of the hemisphere, we observed an overall organization consisting of a succession of “U” fibers in both sides of a narrow and irregular intermediary layer of white matter. Dissection of the core fibers leads to the corona radiata (intermingled with the callosal radiations) on the lateral aspect and to the callosal radiations at the medial aspect of the hemisphere. Based on our findings, the fiber dissection technique does not provide evidence of the presence of long horizontal association fibers in such location, as suggested by brain imaging techniques. The results of this study lead us to hypothesize that dorsal regions of the frontal and parietal lobes superior to the level of the cingulate sulcus are connected by a succession of short association pathways. Dissectible long association fibers are only encountered in a zone restricted to a lower and deeper portion of the superior parietal lobule. These fibers are clearly integrated in the lower portions of the SLF/arcuate fasciculus complex. Anat Rec, 2012. © 2011 Wiley Periodicals, Inc.
Indicators of the quality of trauma care and the performance of trauma systems
Authors: Gruen R L , Gabbe B J , Stelfox H T , Cameron P A 
Published: December 2011

Abstract

Background
Valid and reliable measures of trauma system performance are needed to guide improvement activities, benchmarking and public reporting, future investment and research. Traditional measures of in-hospital mortality fail to take into account prehospital and posthospital care, recovery after discharge, and the nature and costs of long-term disability.

Methods
Drawing on recent systematic reviews, an overview was conducted of existing and emerging trauma care performance indicators. Changes in the nature and purpose of indicators were assessed.

Results
Among a large number of existing, mostly locally developed performance indicators, only peer review of deaths has evidence of validity or reliability. The usefulness of the traditional performance measure of in-hospital mortality has been challenged. There is an emerging shift in focus from mortality to non-mortality outcomes, from hospital-based to long-term community-based outcome assessment, and from single measures of trauma centre performance to measures better suited to monitoring the performance of systems of care spanning the entire patient journey. As a result, a new generation of indicators is emerging that are both feasible and potentially more useful for commissioners and payers of population-based services.

Conclusion
A global endeavour is now under way to agree on a set of standardized performance indicators that are meaningful to patients, carers, clinicians, managers and service funders, are likely to contribute to desired outcomes, and are valid, reliable and have a strong evidence base.
Systematic review of multidisciplinary rehabilitation in patients with multiple trauma
Authors: Khan F , Amatya B , Hoffman K 
Published: December 2011

Abstract

Background
Multiple trauma is a cause of significant disability in adults of working age. Despite the implementation of trauma systems for improved coordination and organization of care, rehabilitation services are not yet routinely considered integral to trauma care processes.

Methods
MEDLINE, Embase, Cumulative Index to Nursing and Allied Health Literature, Allied and Complementary Medicine, Physiotherapy Evidence Database, Latin American and Caribbean Literature on Health Sciences and Cochrane Library databases were searched up to May 2011 for randomized clinical trials, as well as observational studies, reporting outcomes of injured patients following multidisciplinary rehabilitation that addressed functional restoration and societal reintegration based on the International Classification of Functioning, Disability and Health.

Results
No randomized and/or controlled clinical trials were identified. Fifteen observational studies involving 2386 participants with injuries were included. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach assessed methodological quality as ‘poor’ in all studies, with selection and observer bias. Although patients with low functional scores showed improvement after rehabilitation, they were unable to resume their pretrauma level of activity. Their functional ability was significantly associated with motor independence on admission and early acute rehabilitation, which contributed to a shorter hospital stay. Injury location, age, co-morbidity and education predicted long-term functional consequences. Trauma care systems were associated with reduced mortality. The gaps in evidence include: rehabilitation settings, components, intensity, duration and types of therapy, and long-term outcomes for survivors of multiple trauma.

Conclusion
Rehabilitation is an expensive resource and the evidence to support its justification is needed urgently. The issues in study design and research methodology in rehabilitation are challenging. Opportunities to prioritize trauma rehabilitation, disability management and social reintegration of multiple injury survivors are discussed.
Magnitude and Origin of the Attraction and Directionality of the Halogen Bonds of the Complexes of C6F5X and C6H5X (X=I, Br, Cl and F) with Pyridine
Authors: Tsuzuki Seiji , Wakisaka Akihiro , Ono Taizo , Sonoda Takaaki 
Published: December 2011

AbstractThe geometries and interaction energies of complexes of pyridine with C6F5X, C6H5X (X=I, Br, Cl, F and H) and RFI (RF=CF3, C2F5and C3F7) have been studied by ab initio molecular orbital calculations. The CCSD(T) interaction energies (Eint) for the C6F5X–pyridine (X=I, Br, Cl, F and H) complexes at the basis set limit were estimated to be −5.59, −4.06, −2.78, −0.19 and −4.37 kcal mol−1, respectively, whereas theEintvalues for the C6H5X–pyridine (X=I, Br, Cl and H) complexes were estimated to be −3.27, −2.17, −1.23 and −1.78 kcal mol−1, respectively. Electrostatic interactions are the cause of the halogen dependence of the interaction energies and the enhancement of the attraction by the fluorine atoms in C6F5X. The values ofEintestimated for the RFI–pyridine (RF=CF3, C2F5and C3F7) complexes (−5.14, −5.38 and −5.44 kcal mol−1, respectively) are close to that for the C6F5I–pyridine complex. Electrostatic interactions are the major source of the attraction in the strong halogen bond although induction and dispersion interactions also contribute to the attraction. Short‐range (charge‐transfer) interactions do not contribute significantly to the attraction. The magnitude of the directionality of the halogen bond correlates with the magnitude of the attraction. Electrostatic interactions are mainly responsible for the directionality of the halogen bond. The directionality of halogen bonds involving iodine and bromine is high, whereas that of chlorine is low and that of fluorine is negligible. The directionality of the halogen bonds in the C6F5I– and C2F5I–pyridine complexes is higher than that in the hydrogen bonds in the water dimer and water–formaldehyde complex. The calculations suggest that the CI and CBr halogen bonds play an important role in controlling the structures of molecular assemblies, that the CCl bonds play a less important role and that CF bonds have a negligible impact.
ChemInform Abstract: Crystal and Electronic Structure Study of AgPd3Se.
Authors: Laufek F. , Vymazalova A. , Chareev D. A. , Kristavchuk A. V. , Lin Q. , Drahokoupil J. , Vasilchikova T. M. 
Published: December 2011

AbstractThe title compound is synthesized by solid state reaction of a stoichiometric mixture of the elements (800 °C for 2 d and 350 °C for 62 d).
ChemInform Abstract: Superconducting‐Like Behavior of the Layered Chalcogenides CuS and CuSe Below 40 K.
Authors: Raveau B. , Sarkar Tapati 
Published: December 2011

AbstractStrongly sintered (600—800 °C, 24 h) CuS and CuSe exhibit a sharp diamagnetic transition and a resistivity drop around 40 K.
ChemInform Abstract: Mixed Pentasupertetrahedral P1 and Supertetrahedral T2 Clusters as Building Units to Create Two‐Dimentional Indium Chalcogenides Open Framework.
Authors: Chen Chuan‐Yu , Ou Chun‐Chang , Huang Hsiu‐Fuan , Cheng Jeng‐Horng , Yang Chung‐Sung 
Published: December 2011

AbstractReddish crystals of the new open framework clusters [In12S21(Se3)H2]10‐ are hydrothermally prepared from an aqueous mixture of In, S, Se, NaOH, 4,4′‐trimethylene dipiperidine (TMDP), and histidine (autoclave, 150 °C, 3 d, <55% yield).
ChemInform Abstract: First Substoichiometric Version of the Catalytic Enantioselective Addition of an Alkyllithium to an Aldehyde.
Authors: Lecachey Baptiste , Fressigne Catherine , Oulyadi Hassan , Harrison‐Marchand Anne , Maddaluno Jacques 
Published: December 2011

AbstractCalculated quantities of LiCl have to be added to the reaction mixture at the proper time to keep the catalytic cycle running.
ChemInform Abstract: Diastereoselective Nucleophilic Addition to Aldehydes with Polar α‐ and α,β‐Substituents.
Authors: Borg Tessie , Danielsson Jakob , Mohiti Maziar , Restorp Per , Somfai Peter 
Published: December 2011

AbstractThe stereoselectivities obtained in Lewis acid‐promoted Mukaiyama aldol additions and Sakurai allylations of mono‐, and disubstituted aldehydes possessing various polar substituents are presented.
ChemInform Abstract: Cesium Carbonate Supported on Alumina for the Michael Addition of Diethyl Malonate to Methyl Acrylates.
Authors: Hida Tetsunari , Komura Kenichi , Sugi Yoshihiro 
Published: December 2011

AbstractCesium carbonate supported on alumina is a highly active catalyst for the Michael addition of active methylene compounds to acrylates.
ChemInform Abstract: Selective Oxidation of Primary Alkanols into the “Symmetrical” Esters with the H2O2—MBr—HCl System.
Authors: Nikishin G. I. , Sokova L. L. , Kapustina N. I. 
Published: December 2011

AbstractA simple, facile, and effective method for the synthesis of esters by the oxidation of linear and branched alkanols in water is presented.
ChemInform Abstract: Palladium‐Catalyzed Annulation Reactions for Diastereoselective Cyclopentene Synthesis.
Authors: Kohn Benjamin L. , Jarvo Elizabeth R. 
Published: December 2011

AbstractThe Pd‐catalyzed treatment of activated alkenes of type (I) and (IV) with the allene (II) allows an effective and highly diastereoselective access to trisubstituted cyclopentenes.
ChemInform Abstract: Synthesis of Substituted Indenes Through Iron‐Catalyzed Annulation of Benzylic Alcohols with Alkynes.
Authors: Bu Xiuli , Hong Jianquan , Zhou Xigeng 
Published: December 2011

AbstractThe stoichiometric ratio of alcohols and alkynes has a large impact on the selectivity of the tandem mono‐ and dibenzylation/cyclization process.
ChemInform Abstract: Aziridines from Intramolecular Alkene Aziridination of Sulfamates: Reactivity Toward Carbon Nucleophiles. Application to the Synthesis of Spisulosine and Its Fluoro Analogue.
Authors: Malik Guillaume , Esteoule Audrey , Retailleau Pascal , Dauban Philippe 
Published: December 2011

AbstractReaction of the aziridines (II) with C‐nucleophiles generally proceeds with high regio‐ and stereoselectivity giving trans‐substituted 7‐membered cyclic sulfamidates.
ChemInform Abstract: Asymmetric Vinylogous Mannich Reactions: A Versatile Approach to Functionalized Heterocycles.
Authors: Ruan Shu‐Tang , Luo Jie‐Min , Du Yu , Huang Pei‐Qiang 
Published: December 2011

AbstractCoupling of the furan (I) with the imines (R)‐ and (S)‐(II) allows a stereoselective access to butenolides like (III).
ChemInform Abstract: Synthesis of 2‐(1‐Phenylvinyl)benzofurans and 2‐(1‐Phenylvinyl)indoles as Antimitotic Agents by a Tandem Palladium‐Assisted Coupling‐Cyclization Reaction Between 1‐Phenylvinyl Iodides and ortho‐Substituted Arylalkynes.
Authors: Treguier Bret , Rasolofonjatovo Evelia , Hamze Abdallah , Provot Olivier , Wdzieczak‐Bakala Joanna , Dubois Joelle , Brion Jean‐Daniel , Alami Mouad 
Published: December 2011

AbstractThe title compounds are efficiently synthesized by the tandem reaction of arylvinyl iodides (II) with silylated alkynes.
ChemInform Abstract: Oxidative Rearrangement of 2‐Furylcarbamates with Dimethyldioxirane: A High‐Yielding Preparation of 5‐Hydroxypyrrol‐2(5H)‐ones.
Authors: Boukouvalas John , Loach Richard P. , Ouellet Etienne 
Published: December 2011

AbstractA convenient method is developed for the synthesis of the title compounds.
ChemInform Abstract: Regiospecific Epoxide Opening: A Facile Approach for the Synthesis of 3‐Hydroxy‐3‐aminomethylindolin‐2‐one Derivatives.
Authors: Chouhan Mangilal , Senwar Kishna Ram , Sharma Ratnesh , Grover Vikas , Nair Vipin A. 
Published: December 2011

AbstractA mild, simple, and eco‐friendly synthesis of the title compounds (III) and (IV) in a green solvent is presented.
ChemInform Abstract: Synthesis and Properties of a New Donor—Acceptor Diad Composed of DT‐TTF and Dicyanomethylidene Group.
Authors: Nakamura Ken‐ichi , Shirahata Takashi , Miyamoto Hisakazu , Misaki Yohji 
Published: December 2011

AbstractThe compound (Va) exhibits conductivity of 10‐6 S cm‐1 in spite of a single‐component material.
ChemInform Abstract: “Click” Synthesis of Nonsymmetrical 4,4′‐Bis(1,2,3‐triazolium) Salts.
Authors: Aizpurua Jesus M. , Sagartzazu‐Aizpurua Maialen , Azcune Itxaso , Miranda Jose I. , Monasterio Zaira , Garcia‐Lecina Eva , Fratila Raluca M. 
Published: December 2011

AbstractCopper‐catalyzed cycloaddition of ethynyltriazoles (I) with azides provides precursors (III) which can be converted into title compounds as shown for (IIIb).
ChemInform Abstract: Arylamides Hybrids of Two High‐Affinity σ2 Receptor Ligands as Tools for the Development of PET Radiotracers.
Authors: Abate Carmen , Ferorelli Savina , Contino Marialessandra , Marottoli Roberta , Colabufo Nicola Antonio , Perrone Roberto , Berardi Francesco 
Published: December 2011

AbstractCompound (I) represents an interesting tool for the development of PET traces useful in tumors overexpressing P‐glycoprotein.
ChemInform Abstract: Silver‐Catalyzed exo‐dig‐Azacyclization/[3 + 2] Cycloaddition Cascades on 1‐Tosylhydrazon‐4‐oxy‐5‐yne Substrates: Applicability to Diverse Alkenes.
Authors: Huple Deepak B. , Chen Chun‐Hao , Das Arindam , Liu Rai‐Shung 
Published: December 2011

AbstractIn contrast to reported 6‐endo‐dig‐azacyclizations, the reaction has a wide reaction scope, with respect to both substrates, including non‐benzoid substrates, electron‐rich and electron‐deficient alkenes.
ChemInform Abstract: Investigation of Prins Reaction for the Synthesis of 2,4‐Disubstituted Tetrahydropyran Derivatives and 1,3‐Dioxanes Using Polyaniline Supported Acid as Reusable Catalyst.
Authors: Borah Kalyan Jyoti , Borah Ruli 
Published: December 2011

AbstractPolyaniline‐supported TosOH or FeCl3 appear to be useful, reusable catalysts for the Prins cyclization of homoallylic alcohols with aromatic aldehydes as well as the synthesis of dioxanes (VIII) via condensation of terminal olefins with paraformaldehyde.
ChemInform Abstract: Synthesis and Antiviral Activity of Novel 1,3,4‐Thiadiazine Derivatives.
Authors: Yang Yajun , Feng Ziming , Jiang Jianshuang , Yang Yanan , Pan Xiandao , Zhang Peicheng 
Published: December 2011

AbstractA series of novel phthiobuzone analogues (III) is synthesized and tested in vitro for their anti‐herpes simplex virus (HSV) activity.
ChemInform Abstract: A Convenient Synthesis of New Pyrido[3,2‐e][1,4]diazepine‐2,5‐diones and Pyrido[2,3‐e][1,4]diazepine‐2,5‐diones.
Authors: El Bouakher Abderrahman , Laborie Helene , Aadil Mina , El Hakmaoui Ahmed , Lazar Said , Akssira Mohamed , Viaud‐Massuard Marie‐Claude 
Published: December 2011

AbstractDifferent approaches are presented to prepare the title skeletons, especially the regioisomers (IV) and (X).
ChemInform Abstract: Synthesis and Anticancer Activity of Chalcone‐Pyrrolobenzodiazepine Conjugates Linked via 1,2,3‐Triazole Ring Side‐Armed with Alkane Spacers.
Authors: Kamal Ahmed , Prabhakar S. , Ramaiah M. Janaki , Reddy P. Venkat , Reddy Ch. Ratna , Mallareddy A. , Shankaraiah Nagula , Reddy T. Lakshmi Narayan , Pushpavalli S. N. C. V. L. , Pal‐Bhadra Manika 
Published: December 2011

AbstractNew chalcone‐pyrrolobenzodiazepine conjugate (Ia) exhibits promising anticancer activities against selected human cancer cell lines.
ChemInform Abstract: Manganese(III)‐Promoted Tandem Oxidation and Cyclization of β‐Keto Ester Derivatives of Terpenoids.
Authors: Li Zhilong , Jung Heejung , Park Mira , Lah Myoung Soo , Koo Sangho 
Published: December 2011

AbstractA new type of terpenoid cyclization by manganese(III)‐initiated oxidation of β‐ketoester, followed by an intramolecular hetero Diels—Alder reaction with the terpenoid chain is investigated.
ChemInform Abstract: Limonoids and Triterpenoids from the Seeds of Melia azedarach.
Authors: Liu Hong‐Bing , Zhang Chuan‐Rui , Dong Shi‐Hui , Dong Lei , Wu Yan , Yue Jian‐Min 
Published: December 2011

AbstractFive new title compounds (I)—(IV) are isolated and identified along with several known compounds from Chinaberry seeds.