bluuebunny/crossref_metadata_2025_split huggingface dataset:
High incidence of antibodies to protamine and protamine/heparin complexes in patients undergoing cardiopulmonary bypass
Authors: Lee Grace M. , Welsby Ian J. , Phillips-Bute Barbara , Ortel Thomas L. , Arepally Gowthami M. 
Published: February 2013

Key PointsA single exposure to protamine and heparin during CPB is highly sensitizing; 29% of patients develop Abs to PRT/H complexes by day 30 after CPB. PRT/H Abs share several features with platelet factor 4/heparin Abs, including high titer formation after CPB, heparin dependence, antigen specificity, and platelet activation.
Fructose Enhanced Reduction of Bacterial Growth on Nanorough Surfaces
Authors: Durmus N. Gozde , Taylor Erik N. , Kummer Kim M. , Webster Thomas J. 
Published: February 2013

ABSTRACTBiofilms are a major source of medical device-associated infections, due to their persistent growth and antibiotic resistance. Recent studies have shown that engineering surface nanoroughness has great potential to create antibacterial surfaces. In addition, stimulation of bacterial metabolism increases the efficacy of antibacterial agents to eradicate biofilms. In this study, we combined the antibacterial effects of nanorough topographies with metabolic stimulation (i.e., fructose metabolites) to further decrease bacterial growth on polyvinyl chloride (PVC) surfaces, without using antibiotics. We showed for the first time that the presence of fructose on nanorough PVC surfaces decreased planktonic bacteria growth and biofilm formation after 24 hours. Most importantly, a 60% decrease was observed on nanorough PVC surfaces soaked in a 10 mM fructose solution compared to conventional PVC surfaces. In this manner, this study demonstrated that bacteria growth can be significantly decreased through the combined use of fructose and nanorough surfaces and thus should be further studied for a wide range of antibacterial applications.
Late Cenomanian–Turonian (Cretaceous) ammonites from Wadi Qena, central Eastern Desert, Egypt: taxonomy, biostratigraphy and palaeobiogeographic implications
Authors: Nagm Emad , Wilmsen Markus 
Published: February 2013

ABSTRACT
Nagm, E. and Wilmsen, M. 2012. Late Cenomanian-Turonian (Cretaceous) ammonites from Wadi Qena, central Eastern Desert, Egypt: taxonomy, biostratigraphy and palaeobiogeographic implications. Acta Geologica Polonica, 62 (1), 63-89. Warszawa.
In Egypt, marine Upper Cenomanian-Turonian strata are well exposed in the Eastern Desert. The southernmost outcrops are located in the central part of Wadi Qena, where the lower Upper Cretaceous is represented by the fossiliferous Galala and Umm Omeiyid formations. From these strata, numerous ammonites have been collected bed-by-bed and 13 taxa have been identified, which are systematically described herein. Four of them (Euomphalocerascostatum, Vascoceras globosum globosum, Thomasites gongilensis and Pseudotissotia nigeriensis) are recorded from Egypt for the first time. The ammonite ranges are used for a biostratigraphic zonation of the lower Upper Cretaceous succession in the northern and central part of Wadi Qena: the Upper Cenomanian-Lower Turonian has been subdivided into five biozones (including a new upper Lower Turonian biozone based on the occurrence of Pseudotissotia nigeriensis), and one biozone has been recognized in the Upper Turonian. Palaeobiogeographically, the ammonite assemblage has a Tethyan character. During the Early Turonian, influences of the Vascoceratid Province were predominant with strong affinities to typical Nigerian faunas. This shows the significance of faunal exchange between Egypt and Central and West Africa via the Trans-Saharan Seaway. Compared to contemporaneous ammonoid faunas from the northern part of the Eastern Desert, Boreal influences are much less obvious in Wadi Qena. Thus, the present study greatly enhances the knowledge of the Late Cretaceous palaeobiogeography and biostratigraphy of Egypt and adjacent areas.
Stratigraphically important ammonites from the Campanian–Maastrichtian boundary interval of the Middle Vistula River section, central Poland
Authors: Machalski Marcin 
Published: February 2013

ABSTRACT
Machalski, M. 2012. Stratigraphically important ammonites from the Campanian-Maastrichtian boundary interval of the Middle Vistula River section, central Poland. Acta Geologica Polonica, 62 (1), 91-116. Warszawa. The formal definition of the Global Stratotype Section and Point (GSSP) for the base of the Maastrichtian Stage at Tercis, southwest France, is based on the first or last occurrences of twelve taxa, including three species of ammonites, Pachydiscus (Pachydiscus) neubergicus, Diplomoceras cylindraceum, and Nostoceras (Nostoceras ) hyatti. The taxonomy and stratigraphical distribution of these, and allied forms, are studied, on the basis of material from the opoka succession across the upper Campanian-lowermost Maastrichtian boundary in the Middle Vistula River section, central Poland. In view of the imprecise location of two ammonite GSSP markers in that section, a direct ammonite-based correlation with the GSSP at Tercis is impossible. However, data available indicate that in the Middle Vistula River section the first occurrence of Pachydiscus (P.) neubergicus and the last occurrence of Nostoceras (N.) hyatti are situated significantly higher than the first occurrence of Belemnellalanceolata, the traditional belemnite marker for the base of the Maastrichtian Stage in the Boreal Realm, and that Diplomoceras cylindraceum appears significantly below this level. There are no unequivocal records of Pachydiscus (P.) neubergicus from the Belemnella lanceolata Zone s.l. in the Middle Vistula River section.
Faunal dynamics of gastropods in the Bathonian (Middle Jurassic) ore-bearing clays at Gnaszyn, Kraków-Silesia Homocline, Poland
Authors: Kaim Andrzej 
Published: February 2013

ABSTRACT
Kaim, A. 2012. Faunal dynamics of gastropods in the Bathonian (Middle Jurassic) ore-bearing clays at Gnaszyn, Kraków-Silesia Homocline, Poland. Acta Geologica Polonica, 62(3), 367-380. Warszawa.
The succession of gastropods in the Gnaszyn section is quite monotonous and shows significant changes only in the proximity of concretion layers, at least partially because of diagenetic reasons. Otherwise, the section is dominated by gastropods (cylidrobullinids, bullinids, and mathildids) most of which preyed probably on sedentary organisms (polychaetes and/or coelenterates) that possibly flourished on the sea bottom at that time. The other groups of gastropods are represented by larval or juvenile shells. Their presence shows that the environmental conditions that were probably unfavourable for gastropods living directly on the sea bottom most likely because of a soupy substrate consistency, possible oxygen deficiency near the sediment-water interface and/or oxygen content fluctuations. Adult and/or subadult individuals of these gastropods occur only in the higher part of the section, reflecting a time when these conditions improved. A new heterostrophic gastropod species, Promathildia gedli, is described.
Influence of structure of the yarn on mechanical characteristics of yarns exposed to dynamic stress
Authors: Tumajer Petr , Ursíny Petr , Bílek Martin , Mouckova Eva , Pokorna Martina 
Published: February 2013

Abstract

This paper is a direct follow-up of the paper [1] describing in detail the VibTex equipment, which facilitates testing
of textiles in a wide range of frequencies of their extension, as well as the determination of corresponding
dynamic modules and loss angles. This equipment has been employed for testing polyester yarns of concordant
fineness manufactured on ring and rotor spinning frames. At the same time, the material concerned has been
subjected to a standard strength test. Therefore, the results of experimental measuring published in this paper
allow us to assess the effect of the chosen spinning technology upon the mechanical properties of polyester
yarns both at their static and dynamic loading. The introductory section of the paper contains a theoretical
analysis of the effect of the chosen manner of spinning upon the mechanical characteristics of yarns. The
experimental section indicates the results of measurements at static and dynamic loading, and the final section
of the paper confronts the obtained pieces of knowledge with theory. This paper is part of a larger group of
publications concerned with the behaviour of various linear textiles when exposed to dynamic loading (see [1],
[2], [4], [5], [6]).
Load Compensation in Mechatronic System with Observer
Authors: Kolganov Aleksey , Lebedev Sergey , Kulenko Mikhail 
Published: February 2013

Abstract
Features of combined mechatronic systems creation with a rigid mechanics are observed in details. The usage of astatic regulators for the basic positioning loop is offered. Efficiency of regulators and observers adjustment on Bessel polynomial is shown for mechatronic positioning systems. Outcomes of synthesis of the load observer taking into account the drive dynamics and different forms of load in the system are resulted.
Estimation of Traction Drive Test Bench with Energy Storage System Operation in Regenerative Braking Mode
Authors: Zaleskis Genadijs , Brazis Viesturs , Latkovskis Leonards 
Published: February 2013

Abstract
The paper presents configuration of the traction drive test bench with energy storage system, calculation of the scale factors, estimation of the energy storage system size and Matlab simulation results of the bench operation in a braking mode at different levels of the supercapacitor initial voltage.
Pemphigus Vulgaris with Pregnancy
Authors: Nandini G , Umadevi K , Padma K , Uday Rajini , Sahana R 
Published: February 2013

ABSTRACT
Pemphigus vulgaris is an autoimmune bullous dermatosis affecting skin and mucous membrane.2 It affects all races and both sexes equally. It is common during the 5th and 6th decade of life.3 It is exceedingly rare in pregnancy5 and is associated with increased maternal morbidity and poor neonatal outcome.4 We do report a case of pemphigus vulgaris with pregnancy. She conceived during the active phase of the disease and treated with steroids throughout pregnancy. She delivered a live preterm, appropriate for gestational age and constitutionally small fetus.

How to cite this article
Nandini G, Umadevi K, Padma K, Uday R, Sahana R. Pemphigus Vulgaris with Pregnancy. J South Asian Feder Obst Gynae 2012;4(3):159-160.
Laponite and PAS costabilized ASA emulsion with high hydrolysis resistance and sizing efficiency
Authors: Li Haidong , Liu Wenxia , Zhang Wei , Qian Kaifeng , Wang Huili 
Published: February 2013

AbstractASA emulsions costabilized by Laponite and polyaluminum sulfate (PAS) were prepared by homogenizing the mixture of ASA and aqueous dispersion of Laponite and PAS. The properties, sizing performance and hydrolysis resistance of the prepared ASA emulsions, were investigated in this article. The results show that the introduction of PAS significantly improves the stability, hydrolysis resistance, and sizing performance of ASA emulsions. The ASA emulsion stabilized by 0.5% of Laponite (based on total mass of emulsion) and 2% of PAS (based on the mass of Laponite) shows high hydrolysis stability and high sizing efficiency on bleached chemi‐thermomechanical pulp. At the addition level of 0.3% based on bleached chemi‐thermomechanical pulp, the sizing degree of ASA‐sized paper can be as high as 120 s. Even when the storage time of the ASA emulsion exceeds 3 h, its sizing performance is hardly changed. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Visible‐Light Photocatalytic Radical Alkenylation of α‐Carbonyl Alkyl Bromides and Benzyl Bromides
Authors: Liu Qiang , Yi Hong , Liu Jie , Yang Yuhong , Zhang Xu , Zeng Ziqi , Lei Aiwen 
Published: February 2013

AbstractThrough the use of [Ru(bpy)3Cl2] (bpy=2,2′‐bipyridine) and [Ir(ppy)3] (ppy=phenylpyridine) as photocatalysts, we have achieved the first example of visible‐light photocatalytic radical alkenylation of various α‐carbonyl alkyl bromides and benzyl bromides to furnish α‐vinyl carbonyls and allylbenzene derivatives, prominent structural elements of many bioactive molecules. Specifically, this transformation is regiospecific and can tolerate primary, secondary, and even tertiary alkyl halides that bear β‐hydrides, which can be challenging with traditional palladium‐catalyzed approaches. The key initiation step of this transformation is visible‐light‐induced single‐electron reduction of CBr bonds to generate alkyl radical species promoted by photocatalysts. The following carboncarbon bond‐forming step involves a radical addition step rather than a metal‐mediated process, thereby avoiding the undesired β‐hydride elimination side reaction. Moreover, we propose that the Ru and Ir photocatalysts play a dual role in the catalytic system: they absorb energy from the visible light to facilitate the reaction process and act as a medium of electron transfer to activate the alkyl halides more effectively. Overall, this photoredox catalysis method opens new synthetic opportunities for the efficient alkenylation of alkyl halides that contain β‐hydrides under mild conditions.
ChemInform Abstract: Controlling the Self‐Assembly of a Mixed‐Metal Mo/V—Selenite Family of Polyoxometalates.
Authors: Corella‐Ochoa M. Nieves , Miras Haralampos N. , Long De‐Liang , Cronin Leroy 
Published: February 2013

AbstractThe mixed‐metal mixed‐valence Mo/V polyoxometalates templated by SeO32‐ anions are characterized by single crystal XRD, UV/VIS, and FTIR spectroscopy.
ChemInform Abstract: Facile Preparation of Allylzinc Species from Allylboronates and Zinc Amide via a Boron‐to‐Zinc Exchange Process and Their Reactions with Carbonyl Compounds, Imines and Hydrazones.
Authors: Cui Yi , Yamashita Yasuhiro , Kobayashi Shu 
Published: February 2013

AbstractThe first example of a synthetic method involving the use of a catalytic amount of zinc amide is reported.The boron‐zinc exchange process is observed by means of NMR spectroscopy and applied to the catalytic allylation reaction of various electrophiles.
ChemInform Abstract: Cu(I)/Cu(II)/TMEDA, New Effective Available Catalyst of Sandmeyer Reaction.
Authors: Sigeev A. S. , Beletskaya I. P. , Petrovskii P. V. , Peregudov A. S. 
Published: February 2013

AbstractReaction of aryldiazonium salts with potassium chloride, bromide, cyanide, and thiocyanate in the presence of the title catalytic system leads to the formation of the corresponding aryl halides, nitriles, and thiocyanates in moderate to high yields.
ChemInform Abstract: Room Temperature Tandem Hydroamination and Hydrosilation/Protodesilation Catalysis by a Tricarbonylchromium‐Bound Iridacycle.
Authors: Iali Wissam , La Paglia Frederic , Le Goff Xavier‐Frederic , Sredojevic Dusan , Pfeffer Michel , Djukic Jean‐Pierre 
Published: February 2013

AbstractA novel tricarbonylchromium‐bound iridacycle catalyzes the hydroamination of terminal alkynes (I) as well as the hydrosilation/protodesilylation of the formed imines (III).
ChemInform Abstract: A Practical Entry to β‐Aryl‐β‐alkyl Amino Alcohols: Application to the Synthesis of a Potent BACE1 Inhibitor.
Authors: Delgado Oscar , Monteagudo Antonio , Van Gool Michiel , Trabanco Andres A. , Fustero Santos 
Published: February 2013

AbstractThe presented reaction is amenable to being carried out on a multigram scale.
ChemInform Abstract: Stereocontrolled Intramolecular Iron‐Mediated Diene/Vinyl Ether Cyclocoupling Reactions.
Authors: Pearson Anthony J. , Zhang Sheng , Sun Huikai 
Published: February 2013

AbstractHeating of Fe complexes of type (I) followed by demetalation allows a stereoselective access to spirocyclic lactams like (IV) ‐ (VI).
ChemInform Abstract: AlCl3 Mediated Unexpected Migration of Sulfonyl Groups: Regioselective Synthesis of 7‐Sulfonyl Indoles of Potential Pharmacological Interest.
Authors: Prasad Bagineni , Adepu Raju , Sandra Sandhya , Rambabu D. , Krishna G. Rama , Reddy C. Malla , Deora Girdhar Singh , Misra Parimal , Pal Manojit 
Published: February 2013

AbstractThe acetylation of indole (IIIe) in the presence of AlCl3 leads to desired 3‐acetyl derivative (VII), whilst the analogous reaction of 2‐tert‐butylindoles (IIIa)—(IIId) is accompanied by an unexpected migration of the sulfonyl group.
ChemInform Abstract: Ambivalent Role of Metal Chlorides in Ring Opening Reactions of 2H‐Azirines: Synthesis of Imidazoles, Pyrroles and Pyrrolinones.
Authors: Auricchio Sergio , Truscello Ada M. , Lauria Mirvana , Meille Stefano V. 
Published: February 2013

Abstract2H‐Aziridines are applied in the reactions with imines, enaminones and enaminoesters to afford imidazoles [cf.
ChemInform Abstract: Copper‐Catalyzed Synthesis of Trisubstituted Isoxazoles via a Cascade Cyclization—Migration Process.
Authors: Ueda Masafumi , Sugita Shoichi , Sato Aoi , Miyoshi Tetsuya , Miyata Okiko 
Published: February 2013

AbstractHeating of alkynyl oxime ethers (I) and (III) with Cu(OTf)2 allows a convenient and atom‐economical access to trisubstituted isoxazoles.
ChemInform Abstract: An Efficient Synthesis of Thiazolidine‐4‐ones with Antitumor and Antioxidant Activities.
Authors: Aly Ashraf A. , Brown Alan B. , Abdel‐Aziz Mohamed , Abuo‐Rahma Gamal El‐Din A. A. , Radwan Mohamed F. , Ramadan Mohamed , Gamal‐Eldeen Amira M. 
Published: February 2013

AbstractThe title compounds (III) are efficiently obtained in the reaction of 3‐aroyl‐1‐arylthioureas (I) with butynedioate (II) and screened for their antitumor and antioxidant activities.
ChemInform Abstract: Synthesis of New PMB‐Substituted Indoles Containing 1,3,4‐Oxadiazole and 1,2,4‐Triazole Units.
Authors: Farghaly Abdel‐Rahman , Haider Norbert , Lee Duck‐Hyung 
Published: February 2013

Abstract1H‐Indole‐3‐carbohydrazide (II) is used as key intermediate for the synthesis of some new indole derivatives containing oxadiazole or triazole moieties at C‐3.
ChemInform Abstract: Broensted Acidic Ionic Liquid Catalyzed Highly Efficient Synthesis of Chromeno Pyrimidinone Derivatives and Their Antimicrobial Activity.
Authors: Banothu Janardhan , Bavanthula Rajitha 
Published: February 2013

AbstractMost of the products (10 examples) reveal moderate to good antibacterial and antifungal effects.
ChemInform Abstract: Enantioselective H‐Bond‐Directing Approach for Trienamine‐Mediated Reactions in Asymmetric Synthesis.
Authors: Albrecht Lukasz , Cruz Acosta Fabio , Fraile Alberto , Albrecht Anna , Christensen Jannie , Joergensen Karl Anker 
Published: February 2013

AbstractDiversely functionalized tetrahydroxanthones are prepared from 2,4‐dienals and activated 3‐cyanochromones via a [4+2] cycloaddition reaction catalyzed by squaramide‐based catalyst SQA.
ChemInform Abstract: (Bromodimethyl)sulfonium Bromide Catalyzed Solvent‐Free Friedlaender Synthesis of Substituted Quinolines.
Authors: Venkatesham R. , Manjula A. , Rao B. Vittal 
Published: February 2013

AbstractQuinolines are efficiently obtained by condensation of α‐amino carbonyl compounds with α‐methylene containing carbonyl compounds.
ChemInform Abstract: Synthesis of 2‐ and 6‐(Dialkylaminoalkylthio)‐ and 2,6‐Bis(dialkylaminoalkylthio)‐7‐methylpurines.
Authors: Kowalska Alicja , Pluta Krystian 
Published: February 2013

AbstractTwentyone new thiopurines being 2‐ and 6‐substituted and 2,6‐disubstituted purines are prepared.
ChemInform Abstract: Synthesis of Asymmetric 3,5‐Diaryl‐4H‐1,2,6‐thiadiazin‐4‐ones via Suzuki—Miyaura and Stille Coupling Reactions.
Authors: Ioannidou Heraklidia A. , Koutentis Panayiotis A. 
Published: February 2013

AbstractMonoarylation of dichlorodithiazine requires an introduction of an alkoxy group before the Suzuki—Miyaura coupling with the phenylboronic acid can be undertaken [cf.
ChemInform Abstract: Rhododendric Acid A, a New Ursane‐Type PTP1B Inhibitor from the Endangered Plant Rhododendron brachycarpum G. Don.
Authors: Choi Yeon Ho , Zhou Wei , Oh Joonseok , Choe Sanggil , Kim Dong Woo , Lee Seung Ho , Na Min Kyun 
Published: February 2013

AbstractThe bioassay‐guided fractionation on the leaves of R.brachycarpum G.Don (Ericaceae) delivers seven PTP1B inhibitory triterpenoids, including the new triterpene, rhododendric acid A (I).
ChemInform Abstract: Armeniaspiroles, a New Class of Antibacterials: Antibacterial Activities and Total Synthesis of 5‐Chloro‐Armeniaspirole A.
Authors: Couturier Cedric , Bauer Armin , Rey Astrid , Schroif‐Dufour Cosima , Broenstrup Mark 
Published: February 2013

AbstractArmeniaspiroles, isolated from S.armeniacus, are characterized by a novel spiro[4.4]non‐8‐ene scaffold.
Chunk‐based and fairness‐based resource allocation in multicast distributed MISO‐OFDMA systems
Authors: Papoutsis Vasileios D. , Stamouli Alexia P. 
Published: February 2013

SUMMARYThe resource allocation problem for the downlink of orthogonal frequency‐division multiple access (OFDMA) wireless multicast systems is investigated. It is assumed that the base station consists of multiple antennas in a distributed antenna system (DAS), whereas each user is equipped with a single antenna. The multicasting technology is able to support several groups of users with flexible quality of service (QoS) requirements. The general mathematical formulation is provided, but achieving the optimal solution has a high computational cost. In our approach, the allocation unit is not the subcarrier, as in conventional OFDMA systems, but a set of contiguous subcarriers, which is called ‘chunk’. For practical implementation, a suboptimal but efficient algorithm is proposed in order to maximize the sum of the maximum attainable data rates of multicast groups of users, subject to total available power and proportional maximum attainable data rate constraints among multicast groups of users. Simulation and complexity analyses are provided to support the benefits of chunk‐based resource allocation to multicast OFDMA DASs, supporting that the proposed algorithm can be applied to latest‐generation wireless systems that provide QoS guarantees. Copyright © 2013 John Wiley & Sons, Ltd.
Dechlorane plus monoadducts in a lake ontario (Canada) food web and biotransformation by lake trout (Salvelinus namaycush) liver microsomes
Authors: Tomy Gregg T. , Sverko Ed , Palace Vince , Rosenberg Bruno , McCrindle Robert , McAlees Alan , Smith Lindsay A.P. , Byer Jonathan , Pacepavicius Grazina , Alaee Mehran , McCarry Brian E. 
Published: February 2013

Abstract

Compounds related to the high-production-volume flame retardant Dechlorane Plus (DP) were measured in a Lake Ontario food web located downstream of a DP manufacturing plant. These compounds, 1,3- and 1,5-DP-monoadducts (DPMA), are positional isomers and are thought to arise from the incomplete reaction of DP or impurities in the DP starting material during its manufacture. The 1,3-DPMA isomer was measured (0.12–199 ng g−1 lipid wt) in all trophic levels, whereas 1,5-DPMA was measured only sporadically in the food web and was not detectable in the apex predator, lake trout (Salvelinus namaycush). Concentrations of DPMA isomers when detected in Lake Ontario biota were greater than that of total DP for all trophic levels. The prevalence of 1,3-DPMA in the food web, and especially in lake trout, may be due to obstruction of the existing carbon double bond to enzyme attack, rendering it less readily metabolized. To examine this hypothesis, biotransformation kinetic experiments using in vitro lake trout liver microsomal exposures were performed. Zero-order depletion rate constants for 1,3- and 1,5-DPMA were 92.2 and 134.6 pmole h−1, respectively, with corresponding half-lives of 2.03 ± 0.14 h (1,3-DPMA) and 1.39 ± 0.09 h (1,5-DPMA). Furthermore, the 1,5-isomer was depleted to a greater extent than 1,3-DPMA. Specific biotransformation products were not identified. These data support the hypothesis that 1,5-DPMA is more readily metabolized than 1,3-DPMA by lake trout. The present study also shows that the concentrations of these isomers, which the authors speculate might be unintended impurities or byproducts in some technical DP formulations, exceed that of the intended product in biota. Environ Toxicol Chem 2013;32:1376–1381. © 2013 SETAC