bluuebunny/crossref_metadata_2025_split huggingface dataset:
Stand des Luft‐ und Trittschallschutzes im Geschosswohnungsbau in Deutschland
Authors: Summ Jonas , Schimmer Astrid , Schneider Martin 
Published: December 2015

AbstractÜber die letzten Jahrzehnte hinweg ist die deutsche Bevölkerung einer wachsenden Anzahl an Geräuschquellen ausgesetzt. Zu den drei größten Lärmbelästigungsgründen gehört seit über 30 Jahren der Nachbarschaftslärm. Schon kurz nach Einführung der öffentlich‐rechtlich gültigen DIN 4109:1989 haben erste Untersuchungen von Lutz und Kötz ergeben, dass die Mindestanforderungen hinter den baupraktisch üblichen Werten sowie den Anforderungen der Bewohner zurückbleiben. Daraus ergab sich in den letzten Jahrzehnten eine rechtlich unklare Situation.Weiterführend stellt sich die Frage, welches Schallschutzniveau derzeit in der baulichen Praxis im Geschosswohnungsbau erreicht wird. Hierzu wurde im Rahmen einer Bachelorarbeit eine deutschlandweite Erhebung durchgeführt. Die daraus gewonnenen Kenntnisse werden unter dem Punkt “Daten und Analyse“ vorgestellt.The state of the sound protection against airborne sound and impact sound for multi‐storey apartment building in Germany. In the last decades a growing number of sound sources disturb the German population. One of the three biggest issues is neighborhood noise. Shortly after implementation of the German Standard DIN 4109:1989 two surveys from Lutz and Kötz showed that the requirements given in the Standard are well below to the code of practices build and although well below the demands of the residents. Hence the legal situation was dubios for the engineer planning sound insulation. Since the Standard is now more than 25 years old and there have been no new surveys, the question arises about the height of sound insulation nowadays. Therefor a new German wide survey was started within the framework of a bachelor theses. The findings of this survey will be reported in this article.
Rapid identification of the quality decoction pieces by partial least squares ‐based pattern recognition: grade classification of the decoction pieces of Saposhnikovia divaricata
Authors: Liu Ying , Li Li , Xiao Yongqing , Yao Jiaqi , Li Pengyuan , Chen Liang , Yu Dingrong , Ma Yinlian 
Published: December 2015

AbstractHerbal medicines are commonly used in many countries after they undergo processing. Quality decoction pieces are a guarantee of the efficacy and safety of the herbal medical products. Here, a strategy based on chemical analysis combined with chemometric techniques was proposed for the classification and prediction of the different grades of the decoction pieces. Considering the necessity for a shared and simple method for the grade classification for the public, in this paper, the characterization of the chemical constituents was determined by utilizing high‐performance liquid chromatography (HPLC)/diode array detection. HPLC was first established for the characterization of the chemical constituents of the different grade decoction pieces. Furthermore, a simultaneous quantification of several of the marker compounds in these decoction pieces was obtained. Finally, a partial least squares‐based pattern recognition method was utilized to obtain a predictive model for the grade classification of the decoction pieces. Saposhnikovia divaricata (Turcz.) Schischk was used as a case study. The partial least squares ‐based pattern recognition for the grade classification of the decoction pieces of S. divaricata demonstrated good sensitivity, specificity and prediction performance, which may efficiently validate the identification results of appearance assessment. The proposed strategy is expected to provide a new insight for the grade classification and quality control of the decoction pieces. Copyright © 2016 John Wiley & Sons, Ltd.
Deletion/duplication mutation screening of TP53 gene in patients with transitional cell carcinoma of urinary bladder using multiplex ligation‐dependent probe amplification
Authors: Bazrafshani Mohammad Reza R. , Nowshadi Pouriaali A. , Shirian Sadegh , Daneshbod Yahya , Nabipour Fatemeh , Mokhtari Maral , Hosseini Fatemehsadat , Dehghan Somayeh , Saeedzadeh Abolfazl , Mosayebi Ziba 
Published: December 2015

AbstractBladder cancer is a molecular disease driven by the accumulation of genetic, epigenetic, and environmental factors. The aim of this study was to detect the deletions/duplication mutations in TP53 gene exons using multiplex ligation‐dependent probe amplification (MLPA) method in the patients with transitional cell carcinoma (TCC). The achieved formalin‐fixed paraffin‐embedded tissues from 60 patients with TCC of bladder were screened for exonal deletions or duplications of every 12 TP53 gene exons using MLPA. The pathological sections were examined by three pathologists and categorized according to the WHO scoring guideline as 18 (30%) grade I, 22 (37%) grade II, 13 (22%) grade III, and 7 (11%) grade IV cases of TCC. None mutation changes of TP53 gene were detected in 24 (40%) of the patients. Furthermore, mutation changes including, 15 (25%) deletion, 17 (28%) duplication, and 4 (7%) both deletion and duplication cases were observed among 60 samples. From 12 exons of TP53 gene, exon 1 was more subjected to exonal deletion. Deletion of exon 1 of TP53 gene has occurred in 11 (35.4%) patients with TCC. In general, most mutations of TP53, either deletion or duplication, were found in exon 1, which was statistically significant. In addition, no relation between the TCC tumor grade and any type of mutation were observed in this research. MLPA is a simple and efficient method to analyze genomic deletions and duplications of all 12 exons of TP53 gene. The finding of this report that most of the mutations of TP53 occur in exon 1 is in contrast to that of the other reports suggesting that exons 5–8 are the most (frequently) mutated exons of TP53 gene. The mutations of exon 1 of TP53 gene may play an important role in the tumorogenesis of TCC.
Designing Advanced Filtration Media through Metal Additive Manufacturing
Authors: Burns Neil , Burns Mark , Travis Darren , Geekie Louise , Rennie Allan E. W. 
Published: December 2015

AbstractTraditional metal filters are manufactured from perforated plate which forms the filter support to withstand operational pressures and one or more layers of woven wire mesh to form the filter portion at the required level of filtration. The design freedoms and capabilities of additive manufacturing (AM) technology provide the opportunity to design novel filter media with integrated support and filter portions that have defined aperture size and strand diameter. Maximizing the open area of a filter increases filtration efficiency. AM integrated filter support and filter portion designs were optimized and the resultant filter media discussed have the potential to decrease the end users' pumping energy requirements and so reduce energy costs and the inherent carbon footprint.
Photoresponsive Molecular Memory Films Composed of Sequentially Assembled Heterolayers Containing Ruthenium Complexes
Authors: Nagashima Takumi , Ozawa Hiroaki , Suzuki Takashi , Nakabayashi Takuya , Kanaizuka Katsuhiko , Haga Masa‐aki 
Published: December 2015

AbstractPhotoresponsive molecular memory films were fabricated by a layer‐by‐layer (LbL) assembling of two dinuclear Ru complexes with tetrapodal phosphonate anchors, containing either 2,3,5,6‐tetra(2‐pyridyl)pyrazine or 1,2,4,5‐tetra(2‐pyridyl)benzene as a bridging ligand (Ru‐NP and Ru‐CP, respectively), using zirconium phosphonate to link the layers. Various types of multilayer homo‐ and heterostructures were constructed. In the multilayer heterofilms such as ITO||(Ru‐NP)m|(Ru‐CP)n, the difference in redox potentials between Ru‐NP and Ru‐CP layers was approximately 0.7 V, which induced a potential gradient determined by the sequence of the layers. In the ITO||(Ru‐NP)m|(Ru‐CP)n multilayer heterofilms, the direct electron transfer (ET) from the outer Ru‐CP layers to the ITO were observed to be blocked for m>2, and charge trapping in the outer Ru‐CP layers became evident from the appearance of an intervalence charge transfer (IVCT) band at 1140 nm from the formation of the mixed‐valent state of Ru‐CP units, resulting from the reductive ET mediation of the inner Ru‐NP layers. Therefore, the charging/discharging (“1”and “0”) states in the outer Ru‐CP layers could be addressed and interconverted by applying potential pulses between −0.5 and +0.7 V. The two states could be read out by the direction of the photocurrent (anodic or cathodic). The molecular heterolayer films thus represent a typical example of a photoresponsive memory device; that is, the writing process may be achieved by the applied potential (−0.5 or +0.7 V), while the readout process is achieved by measuring the direction of the photocurrent (anodic or cathodic). Sequence‐sensitive multilayer heterofilms, using redox‐active complexes as building blocks, thus demonstrate great potential for the design of molecular functional devices.
Circular DNA by “Bis‐Click” Ligation: Template‐Independent Intramolecular Circularization of Oligonucleotides with Terminal Alkynyl Groups Utilizing Bifunctional Azides
Authors: Yang Haozhe , Seela Frank 
Published: December 2015

AbstractA highly effective and convenient “bis‐click” strategy was developed for the template‐independent circularization of single‐stranded oligonucleotides by employing copper(I)‐assisted azide–alkyne cycloaddition. Terminal triple bonds were incorporated at both ends of linear oligonucleotides. Alkynylated 7‐deaza‐2′‐deoxyadenosine and 2′‐deoxyuridine residues with different side chains were used in solid‐phase synthesis with phosphoramidite chemistry. The bis‐click ligation of linear 9‐ to 36‐mer oligonucleotides with 1,4‐bis(azidomethyl)benzene afforded circular DNA in a simple and selective way; azido modification of the oligonucleotide was not necessary. Short ethynyl side chains were compatible with the circularization of longer oligonucleotides, whereas octadiynyl residues were used for short 9‐mers. Compared with linear duplexes, circular bis‐click constructs exhibit a significantly increased duplex stability over their linear counterparts. The intramolecular bis‐click ligation protocol is not limited to DNA, but may also be suitable for the construction of other macrocycles, such as circular RNAs, peptides, or polysaccharides.
Porphyrin Metalation at MgO Surfaces: A Spectroscopic and Quantum Mechanical Study on Complementary Model Systems
Authors: Schneider Johannes , Franke Matthias , Gurrath Martin , Röckert Michael , Berger Thomas , Bernardi Johannes , Meyer Bernd , Steinrück Hans‐Peter , Lytken Ole , Diwald Oliver 
Published: December 2015

AbstractWe show that both single‐crystalline and nanostructured MgO surfaces convert free‐base tetraphenyl porphyrin (2HTPP) into magnesium tetraphenyl porphyrin (MgTPP) at room temperature. The reaction can be viewed as an ion exchange between the two aminic protons of the 2HTPP molecule with a Mg2+ ion from the surface. The driving force for the reaction is the strong stability of the formed hydroxyl groups along the steps and at defects on the MgO surface. We have used an integrated characterization approach that includes UV/Vis diffuse reflectance measurements on nanostructured powders, X‐ray photoelectron spectroscopic investigation of atomically clean MgO(100) single‐crystalline thin films, and density functional theory (DFT) calculations on model systems. The DFT calculations demonstrate that MgTPP formation is strongly exothermic at the corners, edges and steps, but slightly endothermic on terrace sites. This agrees well with the UV/Vis diffuse reflectance, which upon adsorption of 2HTPP shows a decrease in the absorption band associated with corner and edge sites on MgO nanocube powders.
Methylammonium Bismuth Iodide as a Lead‐Free, Stable Hybrid Organic–Inorganic Solar Absorber
Authors: Hoye Robert L. Z. , Brandt Riley E. , Osherov Anna , Stevanović Vladan , Stranks Samuel D. , Wilson Mark W. B. , Kim Hyunho , Akey Austin J. , Perkins John D. , Kurchin Rachel C. , Poindexter Jeremy R. , Wang Evelyn N. , Bawendi Moungi G. , Bulović Vladimir , Buonassisi Tonio 
Published: December 2015

AbstractMethylammonium lead halide (MAPbX3) perovskites exhibit exceptional carrier transport properties. But their commercial deployment as solar absorbers is currently limited by their intrinsic instability in the presence of humidity and their lead content. Guided by our theoretical predictions, we explored the potential of methylammonium bismuth iodide (MBI) as a solar absorber through detailed materials characterization. We synthesized phase‐pure MBI by solution and vapor processing. In contrast to MAPbX3, MBI is air stable, forming a surface layer that does not increase the recombination rate. We found that MBI luminesces at room temperature, with the vapor‐processed films exhibiting superior photoluminescence (PL) decay times that are promising for photovoltaic applications. The thermodynamic, electronic, and structural features of MBI that are amenable to these properties are also present in other hybrid ternary bismuth halide compounds. Through MBI, we demonstrate a lead‐free and stable alternative to MAPbX3 that has a similar electronic structure and nanosecond lifetimes.
ChemInform Abstract: Structural and Magnetic Properties of the Iridium Double Perovskites Ba2‐xSrxYIrO6.
Authors: Ranjbar Ben , Reynolds Emily , Kayser Paula , Kennedy Brendan J. , Hester James R. , Kimpton Justin A. 
Published: December 2015

AbstractThe ordered double perovskites Ba2‐xSrxYIrO6 (x = 0—2) are prepared by calcination of stoichiometric mixtures of BaCO3, SrCO3, Y2O3, and Ir in air (alumina crucible, staged heating at 650—850 °C, 12 h per stage) followed by staged sintering in air at 1050—1350 °C (72 h per stage).
ChemInform Abstract: P3‐Type Layered Sodium‐Deficient Nickel‐Manganese Oxides: A Flexible Structural Matrix for Reversible Sodium and Lithium Intercalation.
Authors: Kalapsazova Maria , Ortiz Gregorio F. , Tirado Jose L. , Dolotko Oleksandr , Zhecheva Ekaterina , Nihtianova Diana , Mihaylov Lyuben , Stoyanova Radostina 
Published: December 2015

AbstractP3‐NaxNi0.5Mn0.5O2 (x = 0.50, 0.67) and P2‐Na0.66Ni0.33Mn0.66O2 are prepared by thermal decomposition of freeze‐dried Na, Ni, and Mn acetate precursors in O2 at 400 °C followed by annealing in air (700 °C, 24 h).
ChemInform Abstract: Crystal Structures and Magnetic Properties of Nickel Chain Compounds PbM2Ni6Te3O18 (M: Mn, Cd).
Authors: Doi Yoshihiro , Suzuki Ryo , Hinatsu Yukio , Kodama Katsuaki , Igawa Naoki 
Published: December 2015

AbstractThe title compounds are prepared by solid state reactions of PbO or CdO, MnO, NiO, and TeO2 (gold tube, 973—1073 K, 12—36 h).
ChemInform Abstract: Eu3Ir2In15: A Mixed‐Valent and Vacancy‐Filled Variant of the Sc5Co4Si10 Structure Type with Anomalous Magnetic Properties.
Authors: Sarkar Sumanta , Banerjee Swastika , Jana Rajkumar , Siva Ramesh , Pati Swapan K. , Balasubramanian Mahalingam , Peter Sebastian C. 
Published: December 2015

AbstractThe new title compound is synthesized in 95% yield from mixtures of Eu, Ir, excess In as an active metal flux, and Si to nucleate crystal growth (alumina crucible, 1273 K for 6 h, followed by annealing at 1123 K for 72 h).
ChemInform Abstract: The First Modular Route to Core‐Chiral Bispidine Ligands and Their Application in Enantioselective Copper(II)‐Catalyzed Henry Reactions.
Authors: Scharnagel Dagmar , Mueller Andreas , Prause Felix , Eck Martin , Goller Jessica , Milius Wolfgang , Breuning Matthias 
Published: December 2015

AbstractA novel tricyclic bispidine ligand is prepared and successfully applied as a chiral ligand in Cu‐catalyzed asymmetric Henry reactions.
ChemInform Abstract: An Asymmetric Allylic Alkylation Reaction of 3‐Alkylidene Oxindoles.
Authors: Feng Junjun , Li Xin , Cheng Jin‐Pei 
Published: December 2015

Abstractwith MBH carbonates (II) leading to chiral oxindole derivatives (III) with good to high enantioselectivity and Z/E‐selectivity
ChemInform Abstract: Highly Selective Hydrogenation of Aromatic Ketones and Phenols Enabled by Cyclic (Amino)(alkyl)carbene Rhodium Complexes.
Authors: Wei Yu , Rao Bin , Cong Xuefeng , Zeng Xiaoming 
Published: December 2015

AbstractTwo novel rhodium complexes, DMCR and CYCR, are prepared and successfully applied as catalysts for the highly chemoselective hydrogenation of aromatic ketones and phenols.
ChemInform Abstract: Cp*RhIII‐Catalyzed Arylation of C(sp3)—H Bonds.
Authors: Wang Xiaoming , Yu Da‐Gang , Glorius Frank 
Published: December 2015

Abstract2‐Alkylpyridines and diarylmethanes (VI) react with triarylboroxines in the presence of the rhodium catalyst to afford the corresponding arylated compounds.
ChemInform Abstract: Catalytic Multicomponent Thiomethylation of Aliphatic 1,3‐Diketones as Efficient One‐Pot Synthesis of Novel Bis(1,3‐diketone‐2‐ylmethylsulphanyl)alkanes.
Authors: Akhmetova Vnira R. , Akhmadiev Nail S. , Starikova Zoya A. , Tulyabaev Arthur R. , Mescheryakova Ekaterina S. , Ibragimov Askhat G. 
Published: December 2015

AbstractCyclic and acyclic aliphatic ketones are efficiently transformed according to the title reaction.
ChemInform Abstract: Formal Asymmetric [4 + 1] Annulation Reaction Between Sulfur Ylides and 1,3‐Dienes.
Authors: Rousseau Olivier , Delaunay Thierry , Dequirez Geoffroy , Trieu‐Van Tran , Robeyns Koen , Robiette Raphael 
Published: December 2015

AbstractFunctionalized cyclopentenes are conveniently obtained via stereoselective cyclopropanation reaction of sulfur ylides with 1,2‐dienes followed by in situ stereospecific MgI2‐promoted rearrangement of vinylcyclopropanes.
ChemInform Abstract: Asymmetric Annulation of Donor—Acceptor Cyclopropanes with Dienes.
Authors: Xu Hao , Hu Jiang‐Lin , Wang Lijia , Liao Saihu , Tang Yong 
Published: December 2015

AbstractDonor‐acceptor substituted cyclopropanes are efficiently transformed with dienolsilyl ethers in the presence of a newly designed chiral bisoxazoline ligand.
ChemInform Abstract: C—F Activation in Perfluorinated Arenes with Isonitriles under UV‐Light Irradiation.
Authors: Dewanji Abhishek , Mueck‐Lichtenfeld Christian , Bergander Klaus , Daniliuc Constantin G. , Studer Armido 
Published: December 2015

AbstractA series of imidoyl fluorides (III) is readily prepared by photoreaction of isonitriles (I) with hexafluorobenzene.
ChemInform Abstract: Vinylation of Unprotected Phenols Using a Biocatalytic System.
Authors: Busto Eduardo , Simon Robert C. , Kroutil Wolfgang 
Published: December 2015

AbstractThe regioselective preparation of p‐vinylphenols, which are of high interest in the preparation of polymers and fine chemicals, from substituted phenols and pyruvate is best achieved in an incubation solution (detailed elaboration of the conditions) which contains three biocatalysts under an optimized pH value.
ChemInform Abstract: Copper‐Catalyzed Thioetherification Reactions of Alkyl Halides, Triphenyltin Chloride, and Arylboronic Acids with Nitroarenes in the Presence of Sulfur Sources.
Authors: Rostami Abed , Rostami Amin , Ghaderi Arash 
Published: December 2015

AbstractA wide range of structurally diverse alkyl/benzyl aryl and unsymmetrical diaryl thioethers are obtained by three efficient methodologies using green solvents, inexpensive catalysts, and user‐friendly starting materials.
ChemInform Abstract: Haloacid/Dimethyl Sulfoxide‐Catalyzed Synthesis of Symmetrical Disulfides by Oxidation of Thiols.
Authors: Natarajan Palani , Sharma Himani , Kaur Mandeep , Sharma Pooja 
Published: December 2015

AbstractThe simple process tolerates aryl and alkyl substituents endowed with diverse functional groups.
ChemInform Abstract: Copper Catalyzed Direct tert‐Butyl Sulfonylation of Alkynes with t‐Butylsulfinamide Leading to (E)‐Vinyl Sulfones.
Authors: Liu Zhidong , Chen Xiaolan , Chen Jianyu , Qu Lingbo , Xia Yingya , Wu Haitao , Ma Huili , Zhu Shaohua , Zhao Yufen 
Published: December 2015

AbstractThe key step of the method is the cleavage of the N—S bond of tert‐butylsulfinamide catalyzed by an inexpensive and easily available catalytic system.
ChemInform Abstract: Synthesis of Bicyclic Tetrahydrofurans from Linear Precursors Using Manganese(III) Acetate.
Authors: Chany Anne‐Caroline , Marx Leo B. , Burton Jonathan W. 
Published: December 2015

AbstractThis Mn(OAc)3‐mediated intramolecular cyclization gives the corresponding cis‐fused products in good to high yields with modest to high diastereoselectivity.
ChemInform Abstract: Atom‐Economic Synthesis of Fully Substituted 2‐Aminopyrroles via Gold‐Catalyzed Formal [3 + 2] Cycloaddition Between Ynamides and Isoxazoles.
Authors: Xiao Xin‐Yu , Zhou Ai‐Hua , Shu Chao , Pan Fei , Li Ting , Ye Long‐Wu 
Published: December 2015

AbstractUnder mild conditions which do not require exclusion of either moisture or air, a series of the desired heterocyclic synthons is prepared.
ChemInform Abstract: A Simple and Efficient Synthesis of Isoindolinone Derivatives Based on Reaction of ortho‐Lithiated Aromatic Imines with CO.
Authors: Li Hai‐Jun , Zhang Yu‐Qing , Tang Liang‐Fu 
Published: December 2015

AbstractThe fungicidal activity of the products is evaluated and shown to be good for most of the 28 prepared isoindoline derivatives.
ChemInform Abstract: The Combined Use of Cationic Palladium(II) with a Surfactant for the C—H Functionalization of Indoles and Pyrroles in Water.
Authors: Kitanosono Taku , Miyo Masumi , Kobayashi Shu 
Published: December 2015

AbstractIndole and pyrrole derivatives are functionalized with α,β‐unsaturated compounds including vinyl ketones and β‐nitrostyrene.
ChemInform Abstract: A Highly Stereocontrolled, One‐Pot Approach Toward Pyrrolobenzoxazinones and Pyrroloquinazolinones Through a Lewis Acid‐Catalyzed [3 + 2]‐Cycloannulation Process.
Authors: Boomhoff Michael , Ukis Rostyslav , Schneider Christoph 
Published: December 2015

AbstractStereocontrolled cycloheteroannulation of bis‐silyl dienediolate (III) with aminobenzoic acid‐ and aminobenzamide‐derived imines provides access to pyrrolobenzoxazinones and pyrroloquinazolinones in good overall yields.
ChemInform Abstract: Metal‐Free Thiocyanation of Imidazoheterocycles Through Visible Light Photoredox Catalysis.
Authors: Mitra Shubhanjan , Ghosh Monoranjan , Mishra Subhajit , Hajra Alakananda 
Published: December 2015

AbstractThe title reaction is applied to the parent compound (Ia) and a series of substituted analogues to produce the desired C‐3 thiocyanato derivatives under ambient air at room temperature.
ChemInform Abstract: Dehydrogenative TEMPO‐Mediated Formation of Unstable Nitrones: Easy Access to N‐Carbamoyl Isoxazolines.
Authors: Gini Andrea , Segler Marwin , Kellner Dominik , Garcia Mancheno Olga 
Published: December 2015

AbstractUnstable nitrones, formed from the hydroxylamine substrates in the presence of TEMPO, are trapped with alkynes or alkenes to produce the desired isoxazolidines as versatile building blocks of biologically active compounds or natural products (detailed mechanism).
ChemInform Abstract: Four‐ and Sixfold Tandem‐Domino Reactions Leading to Dimeric Tetrasubstituted Alkenes Suitable as Molecular Switches.
Authors: Tietze Lutz F. , Waldecker Bernd , Ganapathy Dhandapani , Eichhorst Christoph , Lenzer Thomas , Oum Kawon , Reichmann Sven O. , Stalke Dietmar 
Published: December 2015

AbstractTetrasubstituted alkenes (II) and (IV) with intrinsic helical chirality are prepared via a fourfold tandem‐domino reaction consisting of two carbopalladation and two C—H activation steps.
ChemInform Abstract: Synthesis and Molecular Docking Study of Novel Chromeno‐Chromenones as anti‐HIV‐1 NNRT Inhibitors.
Authors: Kasralikar Hanmant M. , Jadhavar Suresh C. , Bhusare Sudhakar R. 
Published: December 2015

AbstractThe three‐component reaction between salicylaldehydes (I), 4‐hydroxycoumarin (II) and indole (III) or barbituric acid (V) furnishes the corresponding chromeno[4,3‐b]chromen‐6‐ones in high yields.