bluuebunny/crossref_metadata_2025_split huggingface dataset:
Adjustment of Process Conditions in Seeded Batch Cooling Crystallization
Authors: Prlic Kardum J. , Hrkovac M. , Leskovac M. 
Published: July 2013

AbstractThe influence of seed addition temperature, seed surface area, and seeds of different origin on granulometric characteristics and polymorphism of glycine was examined. At sufficient surface seed area, a regular and narrow crystal size distribution (CSD) was obtained. Polymorphism was investigated by differential scanning calorimetry and X‐ray diffraction analysis. Differences in seed size and seed mass couple affected the granulometric properties but did not cause changes in polymorphic structure. Four experiments with different origin seeds were carried out under optimal process conditions determined by preliminary experiments. Various seed origins caused differences in supersaturation level and CSD but the structure of the obtained crystals remained the same as the loaded seed.
ChemInform Abstract: Structure, Atomistic Simulations, and Phase Transition of Stoichiometric Yeelimite.
Authors: Cuesta Ana , De la Torre Angeles G. , Losilla Enrique R. , Peterson Vanessa K. , Rejmak Pawel , Ayuela Andres , Frontera Carlos , Aranda Miguel A. G. 
Published: July 2013

AbstractCa4[Al6O12]SO4 (yeelimite) is prepared by solid state reaction of CaCO3, Al2O3, and CaSO4 (1300 °C, 4 h, slow cooling).
ChemInform Abstract: Chromium(V) Oxide Trichloride, and Some Pentachlorido‐oxido‐chromate(V) Salts: Structures and Spectroscopic Characterization.
Authors: Hector Andrew L. , Levason William , Light Mark E. , Reid Gillian , Sardar Kripasindhu , Zhang Wenjian 
Published: July 2013

AbstractCrOCl3 crystallizes in the monoclinic space group P21/c with Z = 4 (single crystal XRD).
ChemInform Abstract: Perovskite‐Structured BaScO2(OH) as a Novel Proton Conductor: Heavily Hydrated Phase Obtained via Low‐Temperature Synthesis.
Authors: Cervera Rinlee B. , Miyoshi Shogo , Oyama Yukiko , Elammari Youssef E. , Yagi Takehiko , Yamaguchi Shu 
Published: July 2013

AbstractBaScO2(OH) is prepared by sol—gel reaction of Ba(O‐Bu)2 and Sc(O‐Pr)3 in 2‐methoxyethanol (reflux, 30 min) followed by hydrolyzation and crystallization in a steel vessel with a water vapor supply (150 °C, 2h).
ChemInform Abstract: Reversible Hydrogen Storage Properties of NaAlH4 Enhanced with TiN Catalyst.
Authors: Li Li , Wang Ying , Qiu Fangyuan , Wang Yijing , Xu Yanan , An Cuihua , Jiao Lifang , Yuan Huatang 
Published: July 2013

AbstractA mixture of commercial NaAlH4 and 2 wt.% of nanocrystalline TiN is subjected to ball milling (stainless steel vessel, 450 rpm, 1 h, Ar atmosphere).
ChemInform Abstract: Enantioselective Mukaiyama—Michael Reaction of Silyl Enol Ethers to 2‐Enoylpyridine N‐Oxides Catalyzed by Copper‐Bis(oxazoline) Complex.
Authors: George Jimil , Reddy Basi V. Subba 
Published: July 2013

AbstractA variety of silyl enol ethers such as (II) undergo Michael addition with 2‐enoylpyridine N‐oxides (I) to furnish the corresponding Michael adducts (III) in high yields and enantioselectivities.
ChemInform Abstract: Palladium‐Catalyzed Intermolecular Desulfinylative Cross‐Coupling of Heteroaromatic Sulfinates.
Authors: Sevigny Stephane , Forgione Pat 
Published: July 2013

AbstractAn efficient and environmentally benign palladium‐catalyzed protocol for the synthesis of aryl‐substituted heteroaromatics using a sulfinate as a nucleophilic coupling partner is developed.
ChemInform Abstract: Copper‐Catalyzed Decarboxylation of Aromatic Carboxylic Acids: En Route to Milder Reaction Conditions.
Authors: Cahiez Gerard , Moyeux Alban , Gager Olivier , Poizat Mael 
Published: July 2013

AbstractThe use of TMEDA is crucial to lower the reaction temperature of the decarboxylation reaction.
ChemInform Abstract: Modular Synthesis of Polyene Side Chain Analogues of the Potent Macrolide Antibiotic Etnangien by a Flexible Coupling Strategy Based on Hetero‐bis‐metalated Alkenes.
Authors: Altendorfer Mario , Raja Aruna , Sasse Florenz , Irschik Herbert , Menche Dirk 
Published: July 2013

AbstractHetero‐bis‐metalated alkenes (I) are used as building blocks for preparation of functionalized oligo‐enes by established coupling procedures.
ChemInform Abstract: Palladium‐Mediated [2 + 1] Cycloaddition of Norbornene Derivatives with Ynamides.
Authors: Clavier Herve , Lepronier Aymeric , Bengobesse‐Mintsa Nathalie , Gatineau David , Pellissier Helene , Giordano Laurent , Tenaglia Alphonse , Buono Gerard 
Published: July 2013

AbstractThe title reaction shows general applicability to various functionalized bicyclo[2.2.1]hept‐2‐enes, such as (I), (IV), (VII), (IX), and (XI) and ynamides.
ChemInform Abstract: Nitrogen‐Doped sp2‐Hybridized Carbon as a Superior Catalyst for Selective Oxidation.
Authors: Gao Yongjun , Hu Gang , Zhong Jun , Shi Zujin , Zhu Yuanshuai , Su Dang Sheng , Wang Jianguo , Bao Xinhe , Ma Ding 
Published: July 2013

AbstractThe N‐doped graphite catalyst displays excellent activity for oxidation of arylalkanes in aqueous phase even at room temperature.
ChemInform Abstract: One‐Pot Oxidative Passerini Reaction of Alcohols Using a Magnetically Recyclable TEMPO under Metal‐ and Halogen‐Free Conditions.
Authors: Karimi Babak , Farhangi Elham 
Published: July 2013

AbstractA novel domino oxidative Passerini three‐component reaction is developed with either primary or secondary alcohols (I) instead of their corresponding aldehydes and ketones by using a recyclable magnetic core‐shell nanoparticle supported TEMPO catalyst.
ChemInform Abstract: Stereospecific Allyl—Aryl Coupling Catalyzed by in situ Generated Palladium Nanoparticles in Water under Ambient Conditions.
Authors: Zhao Jingming , Ye Jiang , Zhang Yong Jian 
Published: July 2013

AbstractThe cross‐coupling of secondary allylic carbonates (I) and (IV) with arylboronic acids catalyzed by in situ generated Pd‐nanoparticles without any ligands and additional stabilizers is described.
ChemInform Abstract: Efficient Synthesis of 9,10‐Bis(phenylethynyl)anthracene Derivatives by Integration of Sonogashira Coupling and Double‐Elimination Reactions.
Authors: Toyota Shinji , Mamiya Daiki , Yoshida Rie , Tanaka Ryo , Iwanaga Tetsuo , Orita Akihiro , Otera Junzo 
Published: July 2013

AbstractStarting from aldehyde (I), a combination of Sonogashira coupling and double elimination with benzyl phenyl sulfones is used to synthesize unsymmetrical title compounds as fluorescent building blocks in material chemistry.
ChemInform Abstract: Carbometalation—Carboxylation of 2,3‐Allenols with Carbon Dioxide: A Dramatic Effect of Halide Anion.
Authors: Li Suhua , Miao Bukeyan , Yuan Weiming , Ma Shengming 
Published: July 2013

AbstractA convenient method for the synthesis of 2(5H)‐furanones is presented.
ChemInform Abstract: Rhodium‐Catalyzed Intermolecular Oxidative Cross‐Coupling of (Hetero)arenes with Chalcogenophenes.
Authors: Reddy Vutukuri Prakash , Qiu Renhua , Iwasaki Takanori , Kambe Nobuaki 
Published: July 2013

AbstractThe reaction of arenes and heteroarenes with thio‐ and selenophene derivatives proceeds via double C‐H bond cleavage by using Cu(O‐Ac)2 or Cu(O‐Ac)2/AgSbF6 as an oxidant.
ChemInform Abstract: Rhodium‐Catalyzed Direct Addition of Indoles to N‐Sulfonylaldimines.
Authors: Zhou Bing , Yang Yaxi , Lin Sui , Li Yuanchao 
Published: July 2013

AbstractThe Rh(III)‐catalyzed addition of indoles (I) to a variety of aromatic or alkyl‐N‐sulfonylimines (II) via C—H bond functionalization to afford 2‐indolylmethanamine derivatives (III) is reported.
ChemInform Abstract: Unprecedented One‐Pot, Domino Tertiary Alcohol Protection—Michael Type Addition of Halides to Morita—Baylis—Hillman Adduct of Isatin with RCOX/K2CO3: Diastereoselective Synthesis of Oxindole Appended β‐Halo Esters.
Authors: Solaiselvi Rajarethinam , Shanmugam Ponnusamy , Mandal Asit Baran 
Published: July 2013

AbstractThe tert‐hydroxyl protection in Morita—Baylis—Hillman (MBH) adducts of isatin using the system acyl halogenide/potassium carbonate is studied.
ChemInform Abstract: Organocatalytic Asymmetric Michael Addition of Aliphatic Aldehydes to Indolylnitroalkenes: Access to Contiguous Stereogenic Tryptamine Precursors.
Authors: Chen Jian , Geng Zhi‐Cong , Li Ning , Huang Xiao‐Fei , Pan Feng‐Feng , Wang Xing‐Wang 
Published: July 2013

AbstractThe Michael addition products can be further transformed into tryptamine derivatives, e.
ChemInform Abstract: Asymmetric Hydrogenation of Isoquinolinium Salts Catalyzed by Chiral Iridium Complexes: Direct Synthesis for Optically Active 1,2,3,4‐Tetrahydroisoquinolines.
Authors: Iimuro Atsuhiro , Yamaji Kenta , Kandula Sathaiah , Nagano Takuto , Kita Yusuke , Mashima Kazushi 
Published: July 2013

AbstractIn the presence of a chiral iridium catalyst, 1‐ and 3‐substituted as well as 1,3‐disubstituted isoquinolinium salts can be hydrogenated, giving the corresponding 1,2,3,4‐tetrahydroisoquinolines in high enantiomeric excess.
ChemInform Abstract: Exploring 6‐(Substituted sulfonyl)imidazopyridines as a Potential Scaffold for the Design of 5‐HT6 Ligands.
Authors: Heloire Valeria Moas , Furman Christophe , Melnyk Patricia , Carato Pascal 
Published: July 2013

AbstractNovel imidazopyridine derivatives such as (X) are designed, synthesized, and evaluated for their ability to interact with 5‐HT6 receptors.
Enhanced H2 Separation through Mixed Proton–Electron Conducting Membranes Based on La5.5W0.8M0.2O11.25−δ
Authors: Escolastico Sonia , Seeger Janka , Roitsch Stefan , Ivanova Mariya , Meulenberg Wilhelm A. , Serra José. M. 
Published: July 2013

AbstractLa5.5WO11.25−δ is a proton‐conducting oxide that shows high protonic conductivity, sufficient electronic conductivity, and stability in moist CO2 environments. However, the H2 flows achieved to date when using La5.5WO11.25−δ membranes are still below the threshold for practical application in industrial processes. With the aim of improving the H2 flow obtained with this material, La5.5WO11.25−δ was doped in the W position by using Re and Mo; the chosen stoichiometry was La5.5W0.8M0.2O11.25−δ. This work presents the electrochemical characterization of these two compounds under reducing conditions, the H2 separation properties, as well as the influence of the H2 concentration in the feed stream, degree of humidification, and operating temperature. Doping with both Re and Mo enabled the magnitude of H2 permeation to be enhanced, reaching unrivaled values of up to 0.095 mL min−1 cm−2 at 700 °C for a La5.5W0.8Re0.2O11.25−δ membrane (760 μm thick). The spent membranes were investigated by using XRD, SEM, and TEM on focused‐ion beam lamellas. Furthermore, the stability in CO2‐rich and H2S‐containing atmospheres was evaluated, and the compounds were shown to be stable in the atmospheres studied.
Single transistor high linearity and wide dynamic range active inductor
Authors: Leuzzi G. , Stornelli V. , Pantoli L. , Del Re S. 
Published: July 2013

SummaryIn this paper, an active inductor (AI) with high linearity and high dynamic range, including a minimum number of components, is presented. The AI is composed by a single transistor, and by a passive compensation network; the latter allows the control of the values of both the inductance and the series resistance.In order to show the feasibility of the proposed AI for filter applications, a prototype board on a TLX8 substrate with a first‐order active band‐pass filter has been fabricated and tested. The filter has a center frequency of 2470 MHz (useful for Bluetooth applications) and a measured noise figure (NF) of 9 dB with a −5 dBm P1dB compression point, and a 75 dB dynamic range. Copyright © 2013 John Wiley & Sons, Ltd.
An authenticated group key distribution mechanism using theory of numbers
Authors: Liu Yanjun , Harn Lein , Chang Chin‐Chen 
Published: July 2013

SUMMARYA group key distribution protocol can enable members of a group to share a secret group key and use it for secret communications. In 2010, Harn and Lin proposed an authenticated group key distribution protocol using polynomial‐based secret sharing scheme. Recently, Guo and Chang proposed a similar protocol based on the generalized Chinese remainder theorem. In this paper, we point out that there are some security problems of Guo and Chang's protocol and propose a simpler authenticated group key distribution protocol based on the Chinese remainder theorem. The confidentiality of our proposed protocol is unconditionally secure. Copyright © 2013 John Wiley & Sons, Ltd.
Rational Design of Rhodium Complexes Featuring κ4‐N,N,N,N‐ and κ5‐N,N,N,P,P‐Bis(imino)pyridine Ligands
Authors: Ben‐Daat Hagit , Hall Gabriel B. , Groy Thomas L. , Trovitch Ryan J. 
Published: July 2013

AbstractThe addition of aminoalkyl‐substituted 2,6‐bis(imino)pyridine (or pyridine diimine, PDI) ligands to [(COD)RhCl]2 (COD = 1,5‐cyclooctadiene) resulted in the formation of rhodium monochloride complexes with the general formula (NPDI)RhCl (NPDI = iPr2NEtPDI or Me2NPrPDI). The investigation of (iPr2NEtPDI)RhCl and (Me2NPrPDI)RhCl by single‐crystal X‐ray diffraction verified the absence of amine arm coordination and a pseudo square‐planar geometry about rhodium. Replacement of the chloride ligand with an outer‐sphere anion was achieved by adding AgBF4 directly to (iPr2NEtPDI)RhCl to form [(iPr2NEtPDI)Rh][BF4]. Alternatively, this complex was prepared by chelate addition following the salt metathesis reaction between AgBF4 and [(COD)RhCl]2. Using the latter method, both [(NPDI)Rh][BF4] complexes were isolated and found to exhibit κ4‐N,N,N,N‐PDI coordination regardless of arm length or steric bulk. In contrast, the metallation of PPDI chelates featuring alkylphosphane imine substituents (PPDI = Ph2PEtPDI or Ph2PPrPDI) resulted in the formation of cationic complexes featuring κ5‐N,N,N,P,P‐PDI coordination in all instances, [(PPDI)Rh][X] (X = Cl, BF4). Adjusting the metallation stoichiometry allowed the preparation of [(Ph2PPrPDI)Rh][(COD)RhCl2], as validated by multinuclear NMR spectroscopy and single‐crystal X‐ray diffraction.
Building a Macrocyclic Toolbox from C‐Linked Carbohydrates Identifies Antiangiogenesis Agents from Zebrafish Assay
Authors: Jogula Srinivas , Dasari Bhanudas , Khatravath Mahender , Chandrasekar Gayathri , Kitambi Satish Srinivas , Arya Prabhat 
Published: July 2013

AbstractWe report the synthesis of four different types of macrocyclic‐derived glycohybrids from carbohydrates that have an amino acid moiety in the large‐ring skeleton. These macrocyclic glycohybrids were obtained from α‐C‐1H‐ and β‐C‐1H‐linked carbohydrates. In one series, we utilized ring‐closing metathesis as the “stitching technology” to obtain two different macrocycles, i.e., trans equatorial–axial C‐1H and C‐5H and cis axial–axial C‐1H and C‐5H. The click approach was the key reaction in our second series to obtain two other macrocyclic compounds, i.e., trans equatorial–axial C‐1H and C‐5H and cis axial–axial C‐1H and C‐5H. The evaluation of this toolbox resulted in the identification of two unique compounds as antiangiogenesis agents in an embryonic zebrafish assay. Interestingly, in both cases, the macrocyclic compounds that have a cis relationship (i.e., axial–axial orientation) between C‐1H and C‐5H showed activity and their other diastereomers (i.e., equatorial–axial C‐1H and C‐5 H) with a trans relationship did not show any effect.
A pilot evaluation of a brief non‐verbal executive function assessment in Parkinson's disease
Authors: Hobson Peter James , Meara Robert Jolyon , Evans Rachel 
Published: July 2013

ObjectiveScreening for cognitive impairment in the clinical or community setting is often hampered by the lack of a suitable assessment that is not overburdened with complex administration and scoring methods. We have developed non‐verbal cognitive screening instrument: the Weigl Token Test (WTT) from two existing instruments, the Weigl's Colour‐Form Sorting Test (WCFST) and the Token Test. The aim of this investigation is to compare the modified WTT with a battery of ‘Gold Standard’ cognitive assessments, to determine its utility, sensitivity and specificity as a brief cognitive screen in a cohort of Parkinson's disease (PD) patients.MethodsA total of 50 PD patients consented to participate in this investigation. All participants were assessed with a battery of cognitive screening instruments including the WCFST, Mini Mental Status Examination, Addenbrooke's Cognitive Examination—Revised and Delis Kaplan Executive Function Systems. The sensitivity and specificity of the WTT to detect cognitive impairment were based upon psychiatric interview, neuropsychological assessment and application of DSM‐IV criteria.ResultsThe optimal cut‐point of the WTT was 116/120, and its sensitivity and specificity to detect cognitive impairment were 88% and 89%, respectively. The diagnostic accuracy of the WTT as calculated by the area under the receiver operating curve was 0.83 (95% CI 0.76–0.95), suggesting that this instrument has acceptable psychometric properties to discriminate between case and non‐cases of cognitive impairment.ConclusionsThe WTT demonstrated excellent concurrent validity with existing ‘Gold Standard’ assessments of cognitive impairment. We believe that this instrument will prove to be a valuable additional screening assessment in epidemiological, primary care, specialist mental health or clinical investigations. Copyright © 2013 John Wiley & Sons, Ltd.
The US2 protein is involved in the penetration and cell‐to‐cell spreading of DEVin vitro
Authors: Wei Shuangshi , Liu Xiaomei , Ma Bo , Wu Yihan , Liu Yan , Gao Mingchun , Fu Peifen , Wang Junwei 
Published: July 2013

ABSTRACTPrevious studies have shown that the unique short 2 (US2) protein contributes to the infection of several herpesviruses. However, little is known about whether the US2 protein of duck enteritis virus (DEV) could also contribute to the DEV infection in susceptible cells. This study is aimed at investigating the role of US2 protein in the DEV infection in vitro. The US2 gene was amplified from DEV and cloned into pET32a (+). The expression of recombinant US2 protein was induced in Escherichia coli. After purification, the recombinant US2 protein was immunized into rabbits to generate anti‐US2 sera. The immunoreactivity of anti‐US2 sera was determined by Western blot and immunofluorescent assays. The US2 protein was detected in the cytoplasm and plasma membrane of DEV‐infected duck embryo fibroblast (DEF) cells by immunofluorescent assay using the anti‐US2 serum. When DEV infected DEF cells in vitro, pre‐treatment with anti‐US2 serum did not affect the attachment of virus, but significantly reduced the penetration and cell‐to‐cell spreading of DEV in DEF cells. Our data suggest that the US2 protein is involved in the penetration and cell‐to‐cell spreading during the DEV infection of susceptible cells in vitro.
Case‐finding in Fabry disease: experience from the North of England
Authors: Brennan Paul , Parkes Oliver 
Published: July 2013

AbstractThe advent of effective therapy for Fabry disease (FD) creates two challenges: (1) how do we identify individuals with the condition early in its natural history, and (2) how many people have the condition and require expensive therapy? Between 1981 and 2011, 17 new FD families were referred to the Northern Genetics Service in the North of England, the majority between 2005 and 2001. Since 2009 we have employed biochemical screening in dried blood spots from individuals with high risk phenotypes, such as left ventricular hypertrophy and unexplained renal failure, to identify four of the new index cases; and we have offered comprehensive cascade genetic testing to identify pre‐symptomatic and symptomatic cases of FD in their 233 ‘at risk’ relatives. Overall, this combined approach identified a further 23 symptomatic cases of FD and 38 asymptomatic cases. The uptake of cascade genetic testing in this cohort was 48 %, which is similar to other inherited disorders for which there is an effective intervention. The minimum prevalence of GLA mutation in the North of England population at the end of 2011 was 1 in 40,800 and the prevalence of symptomatic FD was 1 in 64,600. Improved uptake of cascade genetic testing would increase these estimates to a maximum of 1 in 21,800 and 1 in 49,000 respectively. We suggest that any protocol for case identification should consist of targeted biochemical screening and coordinated cascade genetic testing.
A re-description of Physocephalus dromedarii stat. nov. (Nematoda: Spirocercidae), an abomasal nematode of dromedaries (Camelus dromedarius)
Authors: Schuster R.K. , Wibbelt G. , Kinne J. 
Published: July 2013

AbstractPhysocephalus dromedarii stat. nov. was found in the abomasum of two adult female dromedaries originating from a farm in Dubai. Previously, this nematode has been misidentified as a subspecies of Ph. sexalatus but morphological differences are striking enough for it to be upgraded to a species. Physocephalus dromedarii is larger than Ph. sexalatus and has longer spicules. There are 20–22 oblique crests at the ventral surface between the caudal alae of the male compared to 7–8 in the case of Ph. sexalatus. The most significant differences are the presence of two pairs of papillae between cloaca and postcloacal plate of the male and the existence of a swelling in the second half of the female body formed by loops of both uterine horns.
Relatedness among arbuscular mycorrhizal fungi drives plant growth and intraspecific fungal coexistence
Authors: Roger Aurélien , Colard Alexandre , Angelard Caroline , Sanders Ian R 
Published: July 2013

Abstract
Arbuscular mycorrhizal fungi (AMF) form symbioses with most plant species. They are ecologically important determinants of plant growth and diversity. Considerable genetic variation occurs in AMF populations. Thus, plants are exposed to AMF of varying relatedness to each other. Very little is known about either the effects of coexisting AMF on plant growth or which factors influence intraspecific AMF coexistence within roots. No studies have addressed whether the genetics of coexisting AMF, and more specifically their relatedness, influences plant growth and AMF coexistence. Relatedness is expected to influence coexistence between individuals, and it has been suggested that decreasing ability of symbionts to coexist can have negative effects on the growth of the host. We tested the effect of a gradient of AMF genetic relatedness on the growth of two plant species. Increasing relatedness between AMFs lead to markedly greater plant growth (27% biomass increase with closely related compared to distantly related AMF). In one plant species, closely related AMF coexisted in fairly equal proportions but decreasing relatedness lead to a very strong disequilibrium between AMF in roots, indicating much stronger competition. Given the strength of the effects with such a shallow relatedness gradient and the fact that in the field plants are exposed to a steeper gradient, we consider that AMF relatedness can have a strong role in plant growth and the ability of AMF to coexist. We conclude that AMF relatedness is a driver of plant growth and that relatedness is also a strong driver of intraspecific coexistence of these ecologically important symbionts.