bluuebunny/crossref_metadata_2025_split huggingface dataset:
MATLAB and FPGA‐based interactive tool for exploring concepts on compressed sensing
Authors: Rico‐Aniles Daniel , Ramirez‐Cortes Juan Manuel , Rangel‐Magdaleno Jose , Gomez‐Gil Pilar , Peregrina‐Barreto Hayde , Alarcon‐Aquino Vicente 
Published: June 2015

ABSTRACTThis paper presents an educational platform developed to explore some concepts related to the relatively new signal acquisition paradigm known as Compressed Sensing (CS). CS aims to acquire a signal with sparse or compressible representation in a suitable domain, using a number of samples under the limit established by the Nyquist–Shannon sampling theorem. The application consists of a graphical user interface in MATLAB, and a low‐cost FPGA Xilinx Spartan 6, which in that way form a powerful and low‐cost design station adequate to perform a number of CS experiments. Reconstruction of signals is carried out using a Greedy algorithm which solves the underdetermined system in real time with a novel Chebyshev‐type matrix inversion. Effects related to the number of samples defined in the measurement matrix, and the use of different spaces, such as Discrete Cosine Transform, or Discrete Wavelet Transform, can be easily studied with the described tool. Results derived from its use in graduate courses are discussed. © 2015 Wiley Periodicals, Inc. Comput Appl Eng Educ 23:921–930, 2015; View this article online at wileyonlinelibrary.com/journal/cae; DOI 10.1002/cae.21664
Predictive validity of the HCR‐20 for violent and non‐violent sexual behaviour in a secure mental health service
Authors: O'Shea Laura E. , Thaker Dev‐Kishan , Picchioni Marco M. , Mason Fiona L. , Knight Caroline , Dickens Geoffrey L. 
Published: June 2015

AbstractBackgroundViolent and non‐violent sexual behaviour is a fairly common problem among secure mental health service patients, but specialist sexual violence risk assessment is time‐consuming and so performed infrequently.AimsWe aimed to establish whether a commonly used violence risk assessment tool, the Health Clinical Risk management 20(HCR‐20), has predictive validity specifically for inappropriate sexual behaviour.MethodsA pseudo‐prospective cohort design was used for a study in the adult wards of a large provider of specialist secure mental health services. Routine clinical team HCR‐20 assessments were extracted from records, and incidents involving inappropriate sexual behaviour were recorded for the 3 months following assessment.ResultsOf 613 patients, 104 (17%) had engaged in at least one inappropriate sexual behaviour; in 65 (10.6%), the sexual act was violent. HCR‐20 total score, clinical and risk management subscales, predicted violent and non‐violent sexual behaviour. The negative predictive value of the HCR‐20 for inappropriate sexual behaviour was over 90%.ConclusionsPrediction of violent sexual behaviour may be regarded as well within the scope of the HCR‐20 as a structured professional judgement tool to aid violence risk prediction, but we found that it also predicts behaviours that may be of concern but fall below the violence threshold. High negative predictive values suggest that HCR‐20 scores may have some utility for screening out patients who do not require more specialist assessment for inappropriate sexual behaviour. Copyright © 2015 John Wiley & Sons, Ltd.
Formation and Fragmentation of Protonated Molecules after Ionization of Amino Acid and Lactic Acid Clusters by Collision with Ions in the Gas Phase
Authors: Poully Jean‐Christophe , Vizcaino Violaine , Schwob Lucas , Delaunay Rudy , Kocisek Jaroslav , Eden Samuel , Chesnel Jean‐Yves , Méry Alain , Rangama Jimmy , Adoui Lamri , Huber Bernd 
Published: June 2015

AbstractCollisions between O3+ ions and neutral clusters of amino acids (alanine, valine and glycine) as well as lactic acid are performed in the gas phase, in order to investigate the effect of ionizing radiation on these biologically relevant molecular systems. All monomers and dimers are found to be predominantly protonated, and ab initio quantum–chemical calculations on model systems indicate that for amino acids, this is due to proton transfer within the clusters after ionization. For lactic acid, which has a lower proton affinity than amino acids, a significant non‐negligible amount of the radical cation monomer is observed. New fragment‐ion channels observed from clusters, as opposed to isolated molecules, are assigned to the statistical dissociation of protonated molecules formed upon ionization of the clusters. These new dissociation channels exhibit strong delayed fragmentation on the microsecond time scale, especially after multiple ionization.
Guidelines for the cytopathologic diagnosis of epithelioid and mixed‐type malignant mesothelioma: Complementary Statement from the International Mesothelioma Interest Group, Also Endorsed by the International Academy of Cytology and the Papanicolaou Society of Cytopathology
Authors: Hjerpe Anders , Ascoli Valeria , Bedrossian Carlos W.M. , Boon Mathilde E. , Creaney Jenette , Davidson Ben , Dejmek Annika , Dobra Katalin , Fassina Ambrogio , Field Andrew , Firat Pinar , Kamei Toshiaki , Kobayashi Tadao , Michael Claire W. , Önder Sevgen , Segal Amanda , Vielh Philippe 
Published: June 2015

AbstractObjectiveTo provide practical guidelines for the cytopathologic diagnosis of malignant mesothelioma.Data SourcesCytopathologists with an interest in the field involved in the International Mesothelioma Interest Group (IMIG) and the International Academy of Cytology (IAC) contributed to this update. Reference material includes peer‐reviewed publications and textbooks.RationaleThis article is the result of discussions during and after the IMIG 2012 conference in Boston, followed by thorough discussions during the 2013 IAC meeting in Paris. Additional contributions have been obtained from cytopathologists and scientists who could not attend these meetings, with final discussions and input during the IMIG 2014 conference in Cape Town. Diagn. Cytopathol. 2015;43:563–576. © 2015 Wiley Periodicals, Inc.
Multilevel Governance, Decentralization and Environmental Prioritization: How is it working in rural development policy in Scotland?
Authors: Yang Anastasia L. , Rounsevell Mark D. A. , Haggett Claire 
Published: June 2015

AbstractAdopting a ‘multilevel’ governance system and environmental prioritization for the Rural Development Policy (RDP) in Europe are key actions recommended by the European Commission. Member States can decide how and to what extent these actions are incorporated into their RDP design. Through 61 semi‐structured in‐depth interviews with institutional stakeholders, this study assesses the application of these recommendations in RDP in Scotland. The findings indicate that many barriers to effective implementation and environmental prioritization exist due to rigid centralized policy controls. A lack of regionalized autonomy has hindered the ability of regional actors to effectively prioritize local needs. For future policy design, a successful multilevel governance system will require a clearer link between central regulatory requirements and how these link to practical policy implementation. In addition, recognizing an emphasis on ‘policy process’ there will be trade‐offs in effectiveness by outweighing consideration of actual policy outcomes. Copyright © 2015 John Wiley & Sons, Ltd and ERP Environment
A Bis(tridentate)cobalt Polypyridine Complex as Mediator in Dye‐Sensitized Solar Cells
Authors: Mengel Andreas K. C. , Cho Woohyung , Breivogel Aaron , Char Kookheon , Soo Kang Yong , Heinze Katja 
Published: June 2015

AbstractDye‐sensitized solar cells equipped with cationic and neutral RuII‐based sensitizers [Ru(ddpd){tpy(COOH)3}]2+ [12+; ddpd = N,N′‐dimethyl‐N,N′‐di(pyridin‐2‐yl)pyridin‐2,6‐diamine, tpy(COOH)3 = 2,2″6′,2″‐terpyridine‐4,4′,4″‐tricarboxylic acid] and [Ru(ddpd){tpy(COOH)(COO)2}] (2) with and without the coadsorbent chenodeoxycholic acid were constructed with I3–/I– or the CoIII/II‐based redox mediators [Co(bpy)3]3+/2+ (33+/2+; bpy = 2,2′‐bipyridine) and [Co(ddpd)2]3+/2+ (43+/2+) in the presence of LiClO4 and 4‐tert‐butylpyridine. The best photovoltaic performance was achieved by using the 43+/2+ shuttle and the neutral sensitizer 2 without coadsorbent. The higher short‐circuit photocurrent density and higher electron recombination lifetimes obtained with this combination suggest slow electron recombination kinetics at the TiO2 surface with the CoIII complex 43+. The slow electron transfer to 43+ is tentatively ascribed to the high‐lying π* orbitals of the electron‐rich ddpd ligands, which result in a weak electronic coupling. This contrasts with the faster recombination with 33+, which features the low‐energy π* orbitals of the bpy ligands.
Crystal Structure, Antioxidant Properties and Characteristics in Aqueous Solutions of the Oxidovanadium(IV) Complex [VO(IDA)phen]·2H2O
Authors: Pranczk Joanna , Jacewicz Dagmara , Wyrzykowski Dariusz , Wojtczak Andrzej , Tesmar Aleksandra , Chmurzyński Lech 
Published: June 2015

AbstractA new oxidovanadium(IV) complex was prepared by the reaction of vanadyl acetylacetonate [VO(acac)2], iminodiacetic acid (H2IDA) and 1,10‐phenanthroline (phen) in aqueous solutions. The crystal structure of [VO(IDA)phen]·2H2O was determined by X‐ray diffraction crystallographic analysis. The stability of the title compound in aqueous solution was investigated by using potentiometric titration methods. Moreover, the kinetics of substitution reactions of the VO(IDA) binary complex with 1,10‐phenanthroline were investigated in aqueous solutions. These reactions were monitored spectrophotometrically at 249 nm by using stopped‐flow methods. Kinetic measurements were performed in the 293–308 K temperature range, at different concentrations (0.1–0.5 mM) of the binary complex and at a constant concentration of phen (0.05 mmol/L). Moreover, the antioxidant properties of this complex against superoxide radicals were studied by nitrobluetetrazolium (NBT) and cyclic voltammetry (CV) and the antioxidant properties were also investigated against two organic radicals: the 1,1‐diphenyl‐2‐picrylhydrazyl radical (DPPH·) and the 2,2′‐azinobis(3‐ethylbenzothiazoline‐6‐sulfonic acid) radical (ABTS·+) by using spectrophotometric methods. The results of the antioxidant tests show that VO(IDA)phen scavenges superoxide free radicals as well as organic radicals (ABTS·+ and DPPH·).
Quantum Chemical Investigation on Phosphine‐Functionalized Charge‐Neutral Osmium(II) Complexes Bearing Bidentate/Tetradentate Pyridylpyrazolate‐Based Ligands
Authors: Liu Yuqi , Gahungu Godefroid , Sun Xiaobo , Wang Ying , Wu Zhijian 
Published: June 2015

AbstractBy altering the monodentate phosphine ligand (PR3), a series of charge‐neutral OsII complexes 1a–5a [Os(fppz)2(PR3)2] and 1b–5b [Os(L‐NPh)(PR3)2] [fppz = 3‐(trifluoromethyl)‐5‐(2‐pyridyl)pyrazole; PR3 = PMe3 (1a/1b), PPhMe2 (2a/2b), PPh2Me (3a/3b), PPh3 (4a/4b), P(OPh)3 (5a/5b); L‐NPh is two bis(pyridylpyrazolate] fragments connected by a phenylamino bridge at the 6‐position of the pyridyl rings] have been investigated by density functional theory (DFT) methods. The P(OPh)3 substitution in 5a (5b) rendered a considerable stabilization to the HOMO energy levels and an enlargement of the HOMO–LUMO energy gap compared with those of 1a–4a (1b–4b), which led to a clear blueshift in the emission spectra. With the enhancement of the electron‐withdrawing strength of the phosphine ligands, the emissions are successively blueshifted from 1a/1b to 4a/4b. The results also revealed a general relationship between the variations of the emissions and changes to the Os–P bond lengths. The phenylamido bridge in 1b–5b redshifted the absorption and emission spectra compared with those of 1a–5a and decreased the Os(d) participation in the HOMOs, which led to dominant L‐ligand‐based 3π–π* character for their emissive states compared with dominant metal‐to‐ligand charge‐transfer (3MLCT) characters for 1a–5a.
Synthesis, Characterization, Stability, and Gas Adsorption Characteristics of a Highly Stable Zirconium Mesaconate Framework Material
Authors: SK Mostakim , Bhowal Soumya , Biswas Shyam 
Published: June 2015

AbstractA new ZrIV mesaconate framework material was synthesized by heating a mixture of ZrCl4, mesaconic acid, and acetic acid in a molar ratio of 1:1:30 in DMF at 150 °C for 24 h. The influence of the molar ratio of ZrCl4/acetic acid on the crystallinity of the compound was examined. The as‐synthesized compound was Soxhlet‐extracted with ethanol and subsequently heated under vacuum to remove guest solvent molecules from the pores. Both the as‐synthesized sample and the thermally activated sample of this new material were characterized by X‐ray powder diffraction (XRPD), FTIR spectroscopy, thermogravimetry, and elemental analysis. The compound is thermally stable up to 320 °C under air. XRPD experiments indicate that the compound maintains its crystallinity upon exposure to water, acetic acid, and 1 M HCl. According to the N2 sorption analyses, the compound possesses a BET surface area of 662 m2 g–1. Thus, the material is a promising candidate for gas storage and separation owing to its high physiochemical stability and considerable porosity.
Asymmetric Synthesis of δ‐Chloro‐β‐amino‐N‐sulfinyl Imidates as Versatile Chiral Building Blocks for the Synthesis of 2,3‐Disubstituted Piperidines
Authors: Semina Elena , Colpaert Filip , Van Hecke Kristof , De Kimpe Norbert , Mangelinckx Sven 
Published: June 2015

AbstractMannich‐type reactions of chiral δ‐chloro‐N‐tert‐butanesulfinyl‐substituted imidates across N‐sulfonyl aldimines resulted in the efficient and anti‐stereoselective synthesis of new β‐(sulfonylamino)‐N‐sulfinyl imidates (dr > 99:1). These compounds were then successfully cyclized to give 2‐aryl‐N‐sulfonylpiperidine‐3‐(N‐sulfinyl)carbimidates in high yields. These proved to be useful intermediates for the synthesis of chiral methyl 2‐arylpiperidine‐3‐carboxylates as well as cis‐3‐amino‐2‐aryl‐N‐sulfonylpiperidines.
Proline‐Catalyzed Knoevenagel Condensation/[4+2] Cycloaddition Cascade Reaction: Application to Formal Synthesis of Averufin
Authors: Tan Haibo , Chen Xinzheng , Chen Huiyu , Liu Hongxin , Qiu Shengxiang 
Published: June 2015

AbstractA remarkable proline‐catalyzed method for the construction of biologically interesting oxygen‐bridged tricyclic ketal skeletons was uncovered by starting from a variety of readily available cyclic 1,3‐diketones and either 1,4‐ or 1,5‐dicarbonyl substrates. The approach, which mimics a biosynthetic Knoevenagel condensation/[4+2] cycloaddition sequence, establishes a viable synthetic strategy for the efficient formal synthesis of averufin.
Kinetic Resolution of a Planar‐Chiral [2.2]Paracyclophane Derivative by Helical‐Peptide‐Catalyzed Michael Addition of Nitromethane
Authors: Akagawa Kengo , Nishi Nobuhiro , Yoshikawa Isao , Kudo Kazuaki 
Published: June 2015

AbstractA resin‐supported peptide catalyst was developed for kinetic resolution of a planar‐chiral [2.2]paracyclophane derivative through Michael addition of nitromethane to an enone substituent on the paracyclophane structure. A helix‐based peptide was effective to discriminate the planar chirality of the [2.2]paracyclophane structure, and to convert one enantiomer preferentially into the Michael adduct. By optimizing the peptide sequence at the N‐terminus of the helical chain, highly enantioselective resolution was attained.
Enhancement of Thermoelectric Properties in Bi–Sb–Te Alloy Nanowires by Pulsed Electrodeposition
Authors: Li Liang , Xu Sichao , Li Guanghai 
Published: June 2015

AbstractWe report the optimization of Bi–Sb–Te thermoelectric nanowires by electrodeposition. We show that stoichiometric Bi0.5Sb1.5Te3 nanowires have the highest Seebeck coefficient. The pulse‐deposited Bi0.5Sb1.5Te3 nanowires have a more uniform growth front and a high crystallinity and, thus, a larger electrical and thermal conductivity than those of direct current (DC)‐deposited nanowires. The pulse‐deposited nanowires also have a high Seebeck coefficient as they have a more homogeneous distribution of the elements. The figure of merit of the pulse‐deposited single Bi0.5Sb1.5Te3 nanowires can be as high as 1.14 at 330 K and is approximately 54 % higher than that of the DC‐deposited nanowires.
Assessment of Pleurotus ostreatus mediated degradation of agro‐residues by using design of experiments methodologies
Authors: Papadopoulou Konstantina , Dimitropoulos Vassilis , Rigas Fotis 
Published: June 2015

AimLignocellulosic biomass, mostly by agricultural and forestry sources, mainly consists of cellulose, hemicelluloses, and lignin. White rot fungi are known to be efficient degraders of cellulose due to their ligninolytic enzyme system.The use of Pleurotus ostreatus AMRL 141 as a biological treatment of wheat straw (WS) was explored to determine the most significant variables affecting the cultivation of fungus.MethodsTwo experimental designs were applied: firstly, a 2‐level factorial design (screening) with 7 variables and 3 responses and a central composite design with 4 variables and 3 responses. The optima of the statistically adequate models obtained for a 2 weeks cultivation period were then found. The solid state medium used was sandy soil mixed with agricultural residue (milled WS).ResultsOverall, the results of many previous studies of our research group have proved that Pleurotus ostreatus is an efficient lignocellulosic decomposer. In this study, design of experiments methodologies were successfully used and the optimum values of responses found for the two weeks cultivation period were lag time (2 days), extent of colonization (46 mm), and propagation velocity (3 mm d−1). © 2015 American Institute of Chemical Engineers Environ Prog, 34: 1705–1713, 2015
Sensitivity of chemical cement alteration – modeling the effect of parameter uncertainty and varying subsurface conditions
Authors: Wasch Laura J. , Koenen Mariëlle , Wollenweber Jens , Tambach Tim J. 
Published: June 2015

AbstractTo ensure the safety of a CO2 storage site and containment of CO­2 in the subsurface, the integrity of wellbore materials must be maintained. Field and laboratory studies have shown CO2‐induced reactivity of wellbore cement, but these results have to be extrapolated to the extended time span of CO2 storage. Geochemical modeling provides a tool for the prediction of cement alteration; however, large uncertainties in input parameters exist and significant variation in subsurface conditions is expected. This asks for a systematic investigation of the sensitivity of modeled cement alteration towards these factors. In this paper we report PHREEQC simulations of CO2 diffusion into cement and subsequent chemical reactions. The sensitivity of cement alteration toward reaction rates, initial porosity, temperature/mineralogy and flow/no flow conditions were investigated. The base case model indicated that intact cement and tight interfaces between the reservoir and the cement would yield less than 1% porosity change after 300 days of diffusion. For porosity increase or degradation to occur at the cement interface, leaching/flow along the wellbore was required. The sensitivity scenarios yield CO2 penetration depths between 0.3 cm and 1.4 cm after 300 days of diffusion. The maximum was reached for the high porosity (fast diffusion) scenario that facilitates CO2 transport through the cement matrix. The minimum CO2 penetration was for enhanced calcium silicate hydrate (C‐S‐H) decalcification, which increases calcite precipitation, CO2 consumption, and hence decelerates CO2 penetration. This is related to high temperatures (and more crystalline C‐S‐H) or to higher kinetic rate constants used. © 2015 Society of Chemical Industry and John Wiley & Sons, Ltd
Parametric analysis of caprock integrity in relation with CO2 geosequestration: capillary breakthrough pressure of caprock and gas effective permeability
Authors: Rezaeyan Amirsaman , Tabatabaei‐Nejad Seyyed Alireza , Khodapanah Elnaz , Kamari Mosayyeb 
Published: June 2015

AbstractCaprock integrity is a primary criterion for evaluating depleted oil and gas reservoirs for long‐term safety of carbon dioxide geosequestration. The occurrence of capillary leakage is inevitable in caprock. This phenomenon occurs whenever the buoyancy pressure due to accumulated CO2 plumes dominates the capillary pressure of caprock, and thereby the plumes intrude into the pore throats. In this study, experimental investigation of the effective parameters, including overburden pressure, ambient temperature, and CO2 impurities in the form of non‐condensable and non‐reactive CH4 and N2 gases on the capability of shale and anhydrite cores to preserve CO2 gas is conducted. In this regard, capillary breakthrough pressure and CO2 gas effective permeability analysis were performed applying two distinct techniques, step by step and residual capillary pressure. Experiments were conducted at the temperatures of 35, 70, and 90 °C and overburden pressures in the range of 3500–5800 psi. Two main seal rocks, including shale and anhydrite core samples, from middle Asmari and Gachsaran formations of the Zagros Basin located in the southwest of Iran were used. Regarding the high capillary breakthrough pressure and low gas effective permeability after outbreak of the leakage, all three parameters have noticeable effects on capillary sealing efficiency of the caprocks. The results indicate that impurities such as CH4 and N2 have a significant effect on capillary breakthrough pressure of caprock and gas effective permeability. © 2015 Society of Chemical Industry and John Wiley & Sons, Ltd
Functional Analysis of GLRX5 Mutants Reveals Distinct Functionalities of GLRX5 Protein
Authors: Liu Gang , Wang Yongwei , Anderson Gregory J. , Camaschella Clara , Chang Yanzhong , Nie Guangjun 
Published: June 2015

ABSTRACTGlutaredoxin 5 (GLRX5) is a 156 amino acid mitochondrial protein that plays an essential role in mitochondrial iron‐sulfur cluster transfer. Mutations in this protein were reported to result in sideroblastic anemia and variant nonketotic hyperglycinemia in human. Recently, we have characterized a Chinese congenital sideroblastic anemia patient who has two compound heterozygous missense mutations (c. 301 A>C and c. 443 T>C) in his GLRX5 gene. Herein, we developed a GLRX5 knockout K562 cell line and studied the biochemical functions of the identified pathogenic mutations and other conserved amino acids with predicted essential functions. We observed that the K101Q mutation (due to c. 301 A>C mutation) may prevent the binding of [Fe‐S] to GLRX5 protein, while L148S (due to c. 443 T>C mutation) may interfere with [Fe‐S] transfer from GLRX5 to iron regulatory protein 1 (IRP1), mitochondrial aconitase (m‐aconitase) and ferrochelatase. We also demonstrated that L148S is functionally complementary to the K51del mutant with respect to Fe/S‐ferrochelatase, Fe/S‐IRP1, Fe/S‐succinate dehydrogenase, and Fe/S‐m‐aconitase biosynthesis and lipoylation of pyruvate dehydrogenase complex and α‐ketoglutarate dehydrogenase complex. Furthermore, we demonstrated that the mutations of highly conserved amino acid residues in GLRX5 protein can have different effects on downstream Fe/S proteins. Collectively, our current work demonstrates that GLRX5 protein is multifunctional in [Fe‐S] protein synthesis and maturation and defects of the different amino acids of the protein will lead to distinct effects on downstream Fe/S biosynthesis. J. Cell. Biochem. 117: 207–217, 2016. © 2015 Wiley Periodicals, Inc.