bluuebunny/crossref_metadata_2025_split huggingface dataset:
2018 ACC/HRS/NASCI/SCAI/SCCT Expert Consensus Document on Optimal Use of Ionizing Radiation in Cardiovascular Imaging—Best Practices for Safety and Effectiveness, Part 1: Radiation Physics and Radiation Biology
Authors:   Writing Committee Members, Hirshfeld John W. , Ferrari Victor A. , Bengel Frank M. , Bergersen Lisa , Chambers Charles E. , Einstein Andrew J. , Eisenberg Mark J. , Fogel Mark A. , Gerber Thomas C. , Haines David E. , Laskey Warren K. , Limacher Marian C. , Nichols Kenneth J. , Pryma Daniel A. , Raff Gilbert L. , Rubin Geoffrey D. , Smith Donnette , Stillman Arthur E. , Thomas Suma A. , Tsai Thomas T. , Wagner Louis K. , Samuel Wann L. ,   ACC Task Force on Expert Consensus Decision Pathways, Januzzi James L. , Afonso Luis C. , Everett Brendan , Hernandez Adrian F. , Hucker William , Jneid Hani , Kumbhani Dharam , Edward Marine Joseph , Morris Pamela Bowe , Piana Robert N. , Watson Karol E. , Wiggins Barbara S. 
Published: August 2018

AbstractThe stimulus to create this document was the recognition that ionizing radiation‐guided cardiovascular procedures are being performed with increasing frequency, leading to greater patient radiation exposure and, potentially, to greater exposure for clinical personnel. Although the clinical benefit of these procedures is substantial, there is concern about the implications of medical radiation exposure. The American College of Cardiology leadership concluded that it is important to provide practitioners with an educational resource that assembles and interprets the current radiation knowledge base relevant to cardiovascular procedures. By applying this knowledge base, cardiovascular practitioners will be able to select procedures optimally, and minimize radiation exposure to patients and to clinical personnel.Optimal Use of Ionizing Radiation in Cardiovascular Imaging: Best Practices for Safety and Effectiveness is a comprehensive overview of ionizing radiation use in cardiovascular procedures and is published online. To provide the most value to our members, we divided the print version of this document into 2 focused parts. Part I: Radiation Physics and Radiation Biology addresses the issue of medical radiation exposure, the basics of radiation physics and dosimetry, and the basics of radiation biology and radiation‐induced adverse effects. Part II: Radiological Equipment Operation, Dose‐Sparing Methodologies, Patient and Medical Personnel Protection covers the basics of operation and radiation delivery for the 3 cardiovascular imaging modalities (x‐ray fluoroscopy, x‐ray computed tomography, and nuclear scintigraphy) and will be published in the next issue of the Journal.
Quantitative trait loci regulate the concentrations of steryl ferulates in brown rice
Authors: Nakano Hiroshi , Takai Toshiyuki , Kondo Motohiko 
Published: August 2018

AbstractBackground and objectivesγ‐Oryzanol and its major components, 24‐methylenecycloartanyl ferulate and cycloartenyl ferulate, which are distributed in the rice bran layer, exert biomedical effects. The objective of the present study was to detect QTLs regulating the concentrations of 24‐methylenecycloartanyl ferulate and cycloartenyl ferulate by using the reciprocal CSSLs derived from a cross between an indica‐type cultivar Takanari and a japonica‐type cultivar Koshihikari, having low and high concentrations, respectively.FindingsWe detected QTLs for the concentrations of γ‐oryzanol and 24‐methylenecycloartanyl ferulate (μg/grain and/or mg/kg) on chromosome 5 and the concentrations of cycloartenyl ferulate (μg/grain and/or mg/kg) on chromosomes 4 and 11 in reciprocal genetic backgrounds. The concentrations were increased by the Koshihikari allele but decreased by the Takanari allele. In addition, we found a QTL for cycloartenyl ferulate concentration (mg/kg) on chromosome 2 in reciprocal genetic backgrounds. Interestingly, unlike the QTLs on chromosomes 4, 5, and 11, the concentrations were decreased by the Koshihikari allele but increased by the Takanari allele.ConclusionsThe favorable alleles from japonica‐type cultivars can be used to improve the lower concentrations of γ‐oryzanol, 24‐methylenecycloartanyl ferulate, and cycloartenyl ferulate in indica‐type cultivars. In addition, the favorable alleles from indica‐type cultivars can be used to further increase the higher concentrations of cycloartenyl ferulate in japonica‐type cultivars.Significance and noveltyThe QTLs detected in this study should contribute to future‐breeding programs can enhance the health benefits conferred by rice.
Demonstration of Improved Effectiveness Factor of Catalysts Based on Hollow Single Crystal Zeolites
Authors: Pagis Céline , Meunier Frédéric , Schuurman Yves , Tuel Alain , Dodin Mathias , Martinez‐Franco Raquel , Farrusseng David 
Published: August 2018

AbstractPt/NaY zeolites with bulk and hollow morphologies have been used as model catalysts in the hydrogenation of cyclohexene as model reaction. In contrast to most hierarchical zeolites, the presence of a single internal cavity modifies only the mean diffusion length, without changing the external surface area and the crystal size. Differences in catalytic activities have been attributed to a shorter diffusion length in hollow crystals. The volume fraction of zeolite used in bulk crystals (ca. 0.63–0.70) matches well with the shell thickness in hollow crystals, leading to an efficiency factor value for the latter close to 1.
Time Resolved in situ DXAFS Revealing Highly Active Species of PdO Nanoparticle Catalyst for CH4 Oxidation
Authors: Mahara Yuji , Murata Kazumasa , Ueda Kakuya , Ohyama Junya , Kato Kazuo , Satsuma Atsushi 
Published: August 2018

AbstractThe front cover artwork for Issue 16/2018 is a collaboration between Nagoya University, ESICB Kyoto University, and JASRI (all in Japan). The image shows energy dispersive X‐rays illuminating a PdO nanoparticle reduced by methane. See the Communication itself at https://doi.org/10.1002/cctc.201800573.
Metal–Organic Frameworks and Their Derived Materials as Electrocatalysts and Photocatalysts for CO2 Reduction: Progress, Challenges, and Perspectives
Authors: Zhang Hanguang , Li Jiazhan , Tan Qiang , Lu Leilei , Wang Zhenbo , Wu Gang 
Published: August 2018

AbstractExcessive CO2 emission due to a large amount of fossil fuel utilization has become a widespread concern, which causes both environmental and energy problems. To solve these issues, electrocatalytic and photocatalytic reduction of CO2 to produce value‐added chemicals have gained immense attention. Recently, metal–organic frameworks (MOFs) and their derived materials with high specific surface areas, controllable pore structures, and tunable chemical properties exhibit promising performance among the reported catalytic materials for CO2 conversion. This review describes the recent advances on the rational design and synthesis of MOF‐based electrocatalysts and photocatalysts for CO2 reduction. The importance of the catalytic processes is highlighted, followed by systematic understanding of MOF‐based catalysts for CO2 reduction through electrochemical and photochemical approaches. Special emphasis of this review is to introduce basic catalyst design strategies and synthesis methods as well as their resulting electrocatalysts and photocatalysts. One of the major goals is to elucidate the structures and properties that link to their catalytic activity, selectivity, and stability towards to CO2 reduction. We also outline the challenges in this research area and propose the potential strategies for the rational design and synthesis of high‐performance catalysts.
Photocatalytic H2 Evolution Using a Ru Chromophore Tethered to Six Viologen Acceptors
Authors: Yamamoto Keiya , Call Arnau , Sakai Ken 
Published: August 2018

AbstractA new photo‐charge separator (PCS) consisting of a [Ru(bpy)3]2+ (bpy=2,2′‐bipyridine) chromophore and six viologen (MV2+) acceptors, [Ru(bpyMV2)3]14+, is synthesized and its application in the photocatalytic H2 evolution reaction is reported. The present PCS possesses shorter linkers for connecting the Ru chromophore and the MV2+ acceptors in comparison with our previous PCSs (Inorg. Chem. Front., 2016, 3, 671–680) and shows a consecutive photo‐driven electron transfer in the presence of a sacrificial electron donor [ethylenediaminetetraacetic acid (EDTA)], leading to a multi‐electron storage over the PCS. This behavior can also be coupled with the catalytic H2 evolution by the presence of a colloidal Pt catalyst. More importantly, the present PCS exhibits a much higher durability during the photolysis, which is attributed to the higher rate in the catalytic process. The high durability is also attributed to its bulky framework preventing undesirable side reactions.
Recent Progress in the Transition‐Metal‐Catalyzed Activation of Si−Si Bonds To Form C−Si Bonds
Authors: Xiao Peihong , Gao Lu , Song Zhenlei 
Published: August 2018

AbstractDisilanes possessing a Si−Si bond are unique element–element species. Transition‐metal‐catalyzed activation of the Si−Si bond allows many useful transformations that generate diverse organosilanes. This Minireview highlights impressive developments in this field over the past decade, with an emphasis on the formation of vinyl‐, aryl‐, and acylsilanes by C(sp2)−Si bond formation as well as the formation of allyl‐ and alkylsilanes by C(sp3)−Si bond formation.
“Clicked” Porphyrin‐Cucurbituril Conjugate: A New Multifunctional Supramolecular Assembly Based on Triglycosylated Porphyrin and Monopropargyloxycucurbit[7]uril
Authors: Koc Ahmet , Khan Rehan , Tuncel Dönüs 
Published: August 2018

AbstractThe design, synthesis, and characterization of a new multifunctional supramolecular assembly based on a photoactive glycosylated porphyrin and covalently attached monofunctionalized cucurbit[7]uril (CB7) are reported. To obtain the target supramolecular assembly, azido‐functionalized tetraphenylporphyrin (TPP) was used as a building block. TPP was first glycosylated by copper‐catalyzed azide‐alkyne cycloaddition (CuAAC) reaction, then a monopropargyloxy‐functionalized‐CB7 unit was conjugated to glycosylated TPP with a second CuAAC reaction. The host–guest chemistry of the assembly was investigated by 1H NMR experiments to establish the availability of the CB7 as a host. The imidazole‐based guest, which is known to have high affinity toward CB7, was observed to form inclusion complex with CB7. It was also demonstrated that this supramolecular assembly can serve as an efficient photosensitizer for the generation of singlet oxygen.
Photochemical and Photoelectrochemical Hydrogen Generation by Splitting Seawater
Authors: Ayyub Mohd Monis , Chhetri Manjeet , Gupta Uttam , Roy Anand , Rao C. N. R. 
Published: August 2018

AbstractProducing hydrogen from water in an efficient manner could significantly reduce consumption of fossil fuels. In this regard the abundant presence of water in oceans offers an important alternative approach for water splitting using seawater. Direct use of seawater for the generation of hydrogen is a difficult and complex process due to the presence of various ions in seawater, which affect the activity of the catalysts and makes the selectivity towards efficient water splitting a challenging task. Herein various ways are reported to efficiently reduce seawater to hydrogen under visible light irradiation by various catalysts already reported by this group. A better performance than pure water was observed in some cases, and in a few cases the opposite was observed, implying that with a proper approach seawater can be efficiently reduced to generate hydrogen.
Removal of Anions from Aqueous Media by Means of a Thermoresponsive Calix[4]pyrrole Amphiphilic Polymer
Authors: Ji Xiaofan , Guo Chenxing , Chen Wei , Long Lingliang , Zhang Gengwu , Khashab Niveen M. , Sessler Jonathan L. 
Published: August 2018

AbstractTo address the challenge of removing unwanted anions from aqueous media under extraction‐free conditions we have prepared a thermoresponsive amphiphilic polymer with pendent calix[4]pyrrole (C4P) receptors. Because of its amphipathicity, this polymer self‐assembles into micelles in water. These micelles contain the C4P receptors buried in a hydrophobic core. This allows uptake of various cesium anions into the micelles. Due to the thermal responsiveness of the hydrophilic block chain, the anion‐bearing micelles precipitate in water upon heating. Simple filtration allows their removal from the aqueous environment, thus allowing for effective water purification. Treating the anion‐trapped micelles with acidic aqueous solution leads to the competition‐induced release of the bound anion and thus recycling the polymeric material.
Pimarane diterpenes: Natural source, stereochemical configuration, and biological activity
Authors: Reveglia Pierluigi , Cimmino Alessio , Masi Marco , Nocera Paola , Berova Nina , Ellestad George , Evidente Antonio 
Published: August 2018

AbstractPlants and fungi are seemingly inexhaustible sources of interesting natural products with remarkable structural and biological diversity. One of the most important groups is the terpenes, ubiquitous natural products that are generated by 2 now well‐established biosynthetic pathways: the older mevalonate and the more recently discovered 1‐deoxyxylulose‐5‐phosphate. Among the diterpenes, the pimarane diterpenes are a very representative subgroup with several and interesting biological activities resulting from different functional group modifications. In this review, we outline the method of their structure determination, mainly spectroscopic results, their absolute configuration, and structure‐activity relationships, were reported, as well as the mode of action for selected examples from plants, marine organisms, and fungi. The pimarane, isopimarane, andent‐pimarane diterpenes covered in this review have a wide range of biological activities including antimicrobial, antifungal, antiviral, phytotoxic, phytoalexin, cytotoxicity, and antispasmodic and relaxant effects.
Visible‐Light‐Catalyzed Phosphonation‐Annulation: an Efficient Strategy to Synthesize β‐Phosphonopyrrolidines and β‐Phosphonolactones
Authors: Li Chong , Qi Zhi‐Chao , Yang Qiang , Qiang Xiao‐Yue , Yang Shang‐Dong 
Published: August 2018

AbstractA new type of phosphine radical precursor for C—P bond formation has been developed and successfully used in visible‐light‐catalyzed phosphonation‐annulation of unsaturated sulfonamides and carboxylic acids. The catalytic process is simple and green accessible, and no additional oxidant or base is needed. Mechanistic studies suggest that the reaction proceeds via a single electron transfer pathway.
The tree shrew cerebellum atlas: Systematic nomenclature, neurochemical characterization, and afferent projections
Authors: Ni Rong‐Jun , Huang Zhao‐Huan , Luo Peng‐Hao , Ma Xiao‐Hong , Li Tao , Zhou Jiang‐Ning 
Published: August 2018

AbstractThe cerebellum is involved in the control of movement, emotional responses, and reward processing. The tree shrew is the closest living relative of primates. However, little is known not only about the systematic nomenclature for the tree shrew cerebellum but also about the detailed neurochemical characterization and afferent projections. In this study, Nissl staining and acetylcholinesterase histochemistry were used to reveal anatomical features of the cerebellum of tree shrews (Tupaia belangeri chinensis). The cerebellar cortex presented a laminar structure. The morphological characteristics of the cerebellum were comprehensively described in the coronal, sagittal, and horizontal sections. Moreover, distributive maps of calbindin‐immunoreactive (‐ir) cells in the Purkinje cell layer of the cerebellum of tree shrews were depicted using coronal, sagittal, and horizontal schematics. In addition, 5th cerebellar lobule (5Cb)‐projecting neurons were present in the pontine nuclei, reticular nucleus, spinal vestibular nucleus, ventral spinocerebellar tract, and inferior olive of the tree shrew brain. The anterior part of the paramedian lobule of the cerebellum (PMa) received mainly strong innervation from the lateral reticular nucleus, inferior olive, pontine reticular nucleus, spinal trigeminal nucleus, pontine nuclei, and reticulotegmental nucleus of the pons. The present results provide the first systematic nomenclature, detailed atlas of the whole cerebellum, and whole‐brain mapping of afferent projections to the 5Cb and PMa in tree shrews. Our findings provide morphological support for tree shrews as an alternative model for studies of human cerebellar pathologies.
An energy‐aware method for data replication in the cloud environments using a Tabu search and particle swarm optimization algorithm
Authors: Ebadi Yalda , Jafari Navimipour Nima 
Published: August 2018

SummaryCloud computing is a type of parallel, configurable, and flexible system, which refers to the provision of applications on virtual data centers. However, reducing the energy consumption and also maintaining high computation capacity have become timely and important challenges. The concept of replication is used to face these challenges. By increasing the number of data replicas, the energy consumption, the performance, and also the cost of creating and maintaining new replicas also are increased. Deciding on the number of required replicas and their location on the cloud system is an NP‐hard problem. In this paper, the problem is formulated as an optimization problem and a hybrid metaheuristic algorithm is offered to solve it. The algorithm uses the global search capability of the Particle Swarm Optimization (PSO) algorithm and the local search capability of the Tabu Search (TS) to get high‐quality solutions. The efficiency of the method is shown by comparing it with simple PSO, TS, and Ant Colony Optimization (ACO) algorithm on different test cases. The obtained results indicate that the method outperforms all of them in terms of consumed energy and cost.
User attitudes and behaviors toward personalized control of privacy settings on smartphones
Authors: Zhou Yun , Qi Lianyong , Raake Alexander , Xu Tao , Piekarska Marta , Zhang Xuyun 
Published: August 2018

SummaryThe fine‐grained access control has been proved to be a reliable tool to ensure preserving of privacy of end users. In fog computing, one of the challenges is to understand users' attitudes and behaviors toward personalized control. However, few of studies have given a clear view on users' perception of the burden of interactivity when they set complex privacy settings. To this end, we conducted a user study including a lab study with 26 participants and an evaluation with 223 participants. From the lab study, we found that participants were satisfied with improved privacy settings but did not adapt well to complex personalized interfaces. We proposed effective methods to assist users to balance between the full control and the additional interaction burden, including sorting, recommendations, and establishing profiles. After this lab study, we organized a survey evaluation additionally to explore users' current usage of privacy features. Results from the evaluation showed that the principle reason that users failed to use privacy features was that they were not appropriately aware of these features. A key conclusion is that privacy settings should not only let users take over the control of smartphones but also inform them of the knowledge on privacy practices.
Improving Continuous Flow Singlet Oxygen Photooxygenation Reactions with Functionalized Mesoporous Silica Nanoparticles
Authors: Mendoza Carlos , Emmanuel Noémie , Páez Carlos A. , Dreesen Laurent , Monbaliu Jean‐Christophe M. , Heinrichs Benoît 
Published: August 2018

AbstractContinuous flow photochemistry relying on photosensitizers faces two main challenges: 1) Photodegradation (bleaching) and 2) the downstream removal of the photosensitizer. Rose bengal (RB) is a common photosensitizer utilized for photooxygenation reactions with singlet oxygen (1O2), but is notoriously sensitive to photobleaching and difficult to remove from reactor effluents. The heterogenization of photosensitizers on mesoporous silica nanoparticles (MSNs) is arguably a viable option for such applications. Herein, we report on the use of RB covalently incorporated into MSNs (RB@MSNs) for photooxygenation reactions under continuous flow conditions. RB@MSNs enable the 1O2 photooxygenation of various organic substrates upon irradiation with 540 nm LEDs. A series of organic substrates were evaluated including methionine, α‐terpinene, 2‐furoic acid, triphenylphosphine, citronellol and cyclopentadiene. These results emphasize an improved resistance to photobleaching, and the possibility to use RB@MSNs as an easily recoverable catalyst, which could be removed from the reactor effluent either a) by centrifugation or b) by in‐line membrane filtration.
Thiol−Ene Coupling in a Continuous Photo‐Flow Regime
Authors: Janssens Pieter , Debrouwer Wouter , Van Aken Koen , Huvaere Kevin 
Published: August 2018

AbstractPhotoinitiated thiol−ene chemistry is a promising technique for use in chemical synthesis and related sciences. In view of scaling, the process was successfully transferred to a continuous flow regime with compelling results in terms of selectivity, efficiency, and productivity. A series of selected thiols and enes were reacted using 2,2‐dimethoxy‐2‐phenylacetophenone as radical initiator to respond to the 365 nm UV‐LED source. Process parameters were evaluated and chemical cross‐reactivity of the different substrates was assessed. Optimization of conditions gave high productivity of the thio‐ether resulting from the model reaction between benzyl thiol and 1‐decene when performed under neat conditions. The robustness of this method was demonstrated by running it under continuous operation for an extended period of time, with product output reaching constant yields of 90–92 % as soon as the steady‐state regime was installed. The corresponding space–time yield was 9.75 kg l−1 h−1, an impressive value that further demonstrates scale‐up potential.
Reactivity Determinants in Electrodeposited Cu Foams for Electrochemical CO2 Reduction
Authors: Klingan Katharina , Kottakkat Tintula , Jovanov Zarko P. , Jiang Shan , Pasquini Chiara , Scholten Fabian , Kubella Paul , Bergmann Arno , Roldan Cuenya Beatriz , Roth Christina , Dau Holger 
Published: August 2018

AbstractCO2 reduction is of significant interest for the production of nonfossil fuels. The reactivity of eight Cu foams with substantially different morphologies was comprehensively investigated by analysis of the product spectrum and in situ electrochemical spectroscopies (X‐ray absorption near edge structure, extended X‐ray absorption fine structure, X‐ray photoelectron spectroscopy, and Raman spectroscopy). The approach provided new insight into the reactivity determinants: The morphology, stable Cu oxide phases, and *CO poisoning of the H2 formation reaction are not decisive; the electrochemically active surface area influences the reactivity trends; macroscopic diffusion limits the proton supply, resulting in pronounced alkalization at the CuCat surfaces (operando Raman spectroscopy). H2 and CH4 formation was suppressed by macroscopic buffer alkalization, whereas CO and C2H4 formation still proceeded through a largely pH‐independent mechanism. C2H4 was formed from two CO precursor species, namely adsorbed *CO and dissolved CO present in the foam cavities.
Enhanced Base‐Free Formic Acid Production from CO2 on Pd/g‐C3N4 by Tuning of the Carrier Defects
Authors: Mondelli Cecilia , Puértolas Begoña , Ackermann Miriam , Chen Zupeng , Pérez‐Ramírez Javier 
Published: August 2018

AbstractInvited for this month′s cover is the group of Javier Pérez‐Ramírez at ETH Zurich. The image shows the Pisa tower supported by an ant standing on carbon nitride and a palladium nanoparticle, which symbolizes the CO2‐based production of formic acid through bifunctional catalysis. The Full Paper itself is available at 10.1002/cssc.201801920.