bluuebunny/crossref_metadata_2025_split huggingface dataset:
Associations of Lipoprotein(a) Levels With Incident Atrial Fibrillation and Ischemic Stroke: The ARIC (Atherosclerosis Risk in Communities) Study
Authors: Aronis Konstantinos N. , Zhao Di , Hoogeveen Ron C. , Alonso Alvaro , Ballantyne Christie M. , Guallar Eliseo , Jones Steven R. , Martin Seth S. , Nazarian Saman , Steffen Brian T. , Virani Salim S. , Michos Erin D. 
Published: December 2017

Background

Lipoprotein(a) (Lp[a]) is proatherosclerotic and prothrombotic, causally related to coronary disease, and associated with other cardiovascular diseases. The association of Lp(a) with incident atrial fibrillation (
AF
) and with ischemic stroke among individuals with
AF
remains to be elucidated.

Methods and Results

In the community‐based
ARIC
(Atherosclerosis Risk in Communities) study cohort, Lp(a) levels were measured by a Denka Seiken assay at visit 4 (1996–1998). We used multivariable‐adjusted Cox models to compare
AF
and ischemic stroke risk across Lp(a) levels. First, we evaluated incident
AF
in 9908 participants free of
AF
at baseline.
AF
was ascertained by electrocardiography at study visits, hospital
International Statistical Classification of Diseases, 9th Revision
(
ICD‐9
) codes, and death certificates. We then evaluated incident ischemic stroke in 10 127 participants free of stroke at baseline. Stroke was identified by annual phone calls, hospital
ICD‐9 Revision
codes, and death certificates. The baseline age was 62.7±5.6 years. Median Lp(a) levels were 13.3 mg/dL (interquartile range, 5.2–39.7 mg/dL). Median follow‐up was 13.9 and 15.8 years for
AF
and stroke, respectively. Lp(a) was not associated with incident
AF
(hazard ratio, 0.98; 95% confidence interval, 0.82–1.17), comparing those with Lp(a) ≥50 with those with Lp(a) <10 mg/dL. High Lp(a) was associated with a 42% relative increase in stroke risk among participants without
AF
(hazard ratio, 1.42; 95% confidence interval, 1.07–1.90) but not in those with
AF
(hazard ratio, 1.06; 95% confidence interval, 0.70–1.61 [
P
interaction for
AF
=0.25]). There were no interactions by race or sex. No association was found for cardioembolic stroke subtype.

Conclusions

High Lp(a) levels were not associated with incident
AF
. Lp(a) levels were associated with increased ischemic stroke risk, primarily among individuals without
AF
but not in those with
AF
.
Analysis of Work Performance and Export Competitiveness in Province of Indonesia
Authors: Rosita Nani 
Published: December 2017

The purpose of this study is to analyse the export performance of provinces in Indonesia, the effect of export and capital stock on the long-term and short-term economic growth of Indonesia and the competitiveness of provinces in exporting Indonesia’s leading products. The panel data from 33 provinces in Indonesia from 2000-2016 is used in this study. The secondary data is consist of gross regional domestic product (GRDP), export value and gross fixed capital formation (GFCF). Export performance is measured using regional export performance index meanwhile, the effect of export and capital stock on long-term and short-term economic growth is analysed using cointegrated panel model and error correction model (ECM) panel. Finally, RCA dynamic is used in analysing export competitiveness. The results show that export performance of each province have various rating on the regional economies. Only 11 provinces have regional export performance index higher than while, meaning that only 33.3% of the total provinces, while the rest of the provinces have index that are less than one. This shows that only few provinces that can provide good performance of export. Based on the co-integrated test, there is a long-term relation between GRDP, export and GFCF. In both long-term and short-term, export and GFCF have positive impact on GRDP showing that the increase in export and/or GFCF will increase GRDP, which will results in economic growth. Furthermore, the results of RCA dynamic show that the export competitiveness is not always following the growth of national export segment. Indonesia’s rubber and coal exports have negative growth of national export segment while export of palm oil, coffee and textile have positive growth.Keywords: export performance, competitiveness, export led growth, cointegrate panel, ECM panel
Morphological Characteristics of Equatorial Ionization Anomaly Crest Over Nanning Region
Authors: Mo X. H. , Zhang D. H. , Liu J. , Hao Y. Q. , Ye J. F. , Qin J. S. , Wei W. X. , Xiao Z. 
Published: December 2017

AbstractUsing the ionospheric total electron content (TEC) and the location of the equatorial ionization anomaly (EIA) crest derived from GPS data observed at Nanning (22.84°N, 108.33°E, dip latitude ~ 12.14°N), China, a GPS station situated near the daytime EIA crest region, the local time, seasonal, and solar cycle variations of EIA crests from 2006 to 2015 was investigated. The TEC and the magnetic latitude (MLAT) location of EIA crest experience an ascendant and descendant process with the daytime evolution of EIA crest. Also, this diurnal variation of EIA crest depends on season and solar cycle. The TEC and MLAT location of EIA crest is stronger and higher in equinoctial months than that in solistial months showing a semiannual variation. The TEC and MLAT location of EIA crest increase with the solar activity. The local time, seasonal, and solar cycle variations of EIA crest is consistent with that of the strength of equatorial electrojet (EEJ). Comparatively, the correlation of the EEJ strength with the EIA location is better than that with the TEC of EIA crest.
Fluid–Structure Interaction Problems
Authors: Ohayon Roger , Schotté Jean‐Sébastien 
Published: December 2017

Abstract
Several reduced‐order formulations are reviewed in the case of linear vibration analysis of bounded fluid‐structure systems for low modal density situations. Compressibility effects in the fluid for interior structural‐acoustic problems, and free‐surface gravity effects, as well as for hydroelastic–sloshing interaction problems in the case of incompressible liquids, are examined. Reduced‐order models leading to symmetric matrix systems are then described using static well‐posed behavior of the irrotational fluid. In this respect, the fluid‐structure boundary value local equations, expressed in terms of fluid scalar field variables for the fluid (and displacement variables for the structure), are regularized for zero‐frequency limit.
Patient Perception of Disease‐Related Symptoms and Complications in Relapsing Polychondritis
Authors: Ferrada Marcela A. , Grayson Peter C. , Banerjee Shubhasree , A. Sikora Keith , A. Colbert Robert , Sinaii Ninet , Katz James D. 
Published: December 2017

ObjectiveTo assess patient‐reported symptoms and burden of disease in relapsing polychondritis (RP).MethodsPatients with RP completed a disease‐specific online survey to identify symptoms attributed to illness. Patients were divided into subgroups based upon presence or absence of ear/nose, airway, or joint involvement. Pathway to diagnosis, treatment, and disease‐related complications were assessed within each subgroup.ResultsData from 304 respondents were included in this analysis. Prior to diagnosis, most patients with RP went to the emergency room (54%), saw > 3 physicians (54%), and had symptoms for >5 years (64%). A concomitant diagnosis of fibromyalgia and absence of ear/nose or joint involvement was associated with diagnostic delay >1 year. Common diagnoses prior to RP diagnosis included asthma in patients with airway involvement (35% versus 22%; P = 0.03) and ear infection in patients with ear/nose involvement (51% versus 6%; P < 0.01). Patients with joint involvement were more likely to receive a glucocorticoid‐sparing agent (85% versus 13%; P < 0.01). Most patients reported a major complication, including disability (25%), tracheomalacia (16%), or hearing loss (34%). Patients with airway involvement reported more tracheomalacia (20% versus 4%; P < 0.01). Disability (24% versus 7%; P < 0.01) and hearing loss (39% versus 11%; P < 0.01) were prevalent in the joint involvement subgroup.ConclusionPatient‐reported data in RP highlight a significant burden of disease. Patterns of organ involvement may lead to diagnostic delay and influence treatment decisions, ultimately impacting the development of disease‐related complications. Timely diagnosis, standardization of treatment approaches, and prevention of disease‐related complications are major unmet needs in RP.
Si‐Doping Mediated Phase Control from β‐ to γ‐Form Li3VO4 toward Smoothing Li Insertion/Extraction
Authors: Liao Chaoyi , Wen Yanwei , Xia Zhiguo , Qin Ruihuan , Liu Xun , Yu Yao , Shan Bin , Zhai Tianyou , Li Huiqiao 
Published: December 2017

AbstractThe γ phase Li3VO4 which possesses higher ionic conductivity is more preferable for lithium ion batteries, but it is only stable at high temperature and would convert to low temperature β phase spontaneously when cooling down. Here, the phase control of Li3VO4 to stabilize its γ phase in room temperature is successfully mediated by introducing proper Si‐doping, and for the first time the electrochemical performances of γ‐Li3VO4 is investigated. It is found that pure γ‐Li3VO4 can be obtained in a doping ratio of x = 0.05–0.15 in Li3+xV1−xSixO4 with addition of excess Li source in synthesis design. The doping mechanism and the energy changes are investigated in detail by using the first principle calculations, it reveals that an interstitial Li+ is formed with doping of Si4+ in Li3VO4 to balance the system charge. When served as an anode, the Si‐doped γ‐Li3VO4 shows much smoothed Li+ insertion/extraction and enhanced cycle stability with only a single pair of redox peaks, which behaves much different with the complex multicouples of redox peaks in typical β‐Li3VO4. These changes in electrochemical performances implies that γ‐Li3VO4 can effectively accommodate Li+ in an easier and more facile way and relieved structure stress during the charge/discharge process.
Synthesis and Reactivity of an End‐Deck cyclo‐P4 Iron Complex
Authors: Cavaillé Anthony , Saffon‐Merceron Nathalie , Nebra Noel , Fustier‐Boutignon Marie , Mézailles Nicolas 
Published: December 2017

AbstractReduction of the FeII complex [(PhPP2Cy)FeCl2] (2) generated an electron‐rich and unsaturated Fe0 species, which was reacted with white phosphorus. The resulting new complex, [(PhPP2Cy)Fe(η4‐P4)] (3), is the first iron cyclo‐P4 complex and the only known stable end‐deck cyclo‐P4 complex outside Group V. Complex 3 features an FeII center, as shown by Mössbauer spectroscopy, associated to a P42− fragment. The distinct reactivity of complex 3 was rationalized by analysis of the molecular orbitals. Reaction of complex 3 with H+ afforded the unstable complex [(PhPP2Cy)Fe(η4‐P4)(H)]+ (4), whereas with CuCl and BCF, the complexes [(PhPP2Cy)Fe(η4:η1‐P4)(μ‐CuCl)]2 (5) and [(PhPP2Cy)Fe(η4:η1‐P4)B(C6F5)3] (6) were formed.
Analyzing the influence of different synthetic talcs in waterborne polyurethane nanocomposites obtainment
Authors: Dias Guilherme , Prado Manoela , Le Roux Christophe , Poirier Mathilde , Micoud Pierre , Ligabue Rosane , Martin François , Einloft Sandra 
Published: December 2017

ABSTRACTWaterborne polyurethane (WPU) nanocomposites were produced utilizing synthetic talc in gel form in order to improve its physical–chemical properties. Synthetic talc manufactured in nano‐gel form are interesting because their interaction with water occurs through hydrogen bonding favoring fillers dispersion within the WPU matrix. WPUs are environmental friendly materials because no organic solvents are used in its production. The nanocomposites obtained with the three synthetic talc nano‐gel fillers presented a good dispersion even when higher amounts of fillers were added, as seen by X‐ray diffraction, transmission electron microscopy, field emission scanning electron microscopy, and atomic force microscopy analyses. The addition of synthetic talcs improved WPU nanocomposites mechanical properties. Storage and loss modulus results proved fillers incorporation into the WPU matrix corroborating with Fourier transform infrared spectroscopy results. Results demonstrated that synthetic talcs in nano‐gel form are interesting to obtain WPU nanocomposites with superior mechanical properties. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46107.
Evolution and consumer psychology
Authors: Durante Kristina M. , Griskevicius Vladas 
Published: December 2017

AbstractAn evolutionary theoretical approach considers the adaptive function of behavior. Here we discuss what it means to use an evolutionary approach to generate predictions about consumer behavior and the value of applying an evolutionary lens to the study of consumer psychology. We begin with a discussion of the core insights of evolutionary theory and the common misperceptions associated with an evolutionary approach to the study of behavior. We then detail how specific evolutionarily informed theories can be applied to four core areas of consumer research: risk preference, competition and luxury consumption, self‐control and temporal preferences, and the consumer behavior of women and families. We also discuss the strengths and limitations of an evolutionarily informed research program.
Metabolic interaction between urea cycle and citric acid cycle shunt: A guided approach
Authors: Pesi Rossana , Balestri Francesco , Ipata Piero L. 
Published: December 2017

AbstractThis article is a guided pedagogical approach, devoted to postgraduate students specializing in biochemistry, aimed at presenting all single reactions and overall equations leading to the metabolic interaction between ureagenesis and citric acid cycle to be incorporated into a two‐three lecture series about the interaction of urea cycle with other metabolic pathways. We emphasize that citrate synthetase, aconitase, and isocitrate dehydrogenase, three enzymes of the citric acid cycle are not involved, thus creating a shunt in citric acid cycle. In contrast, the glutamic‐oxaloacetate transaminase, which does not belong to citric acid cycle, has a paramount importance in the metabolic interaction of the two cycles, because it generates aspartate, one of the two fuel molecules of urea cycle, anda‐ketoglutarate, an intermediate of the citric acid cycle. Finally, students should appreciate that balancing equations for all atoms and charges is not only a stoichiometric task, but strongly facilitates the discussion of the physiological roles of metabolic pathways. Indeed, this exercise has been used in the classroom, to encourage a deeper level of understanding of an important biochemical issue. © 2017 by The International Union of Biochemistry and Molecular Biology, 46(2):182–185, 2018.
Energy Consumption and Gypsum Scaling Assessment in a Hybrid Nanofiltration‐Reverse Osmosis‐Electrodialysis system
Authors: Turek Marian , Mitko Krzysztof , Laskowska Ewa , Chorążewska Marzena , Piotrowski Krzysztof , Jakóbik-Kolon Agata , Dydo Piotr 
Published: December 2017

AbstractHybrid and integrated membrane systems are often proposed as a way to increase the water recovery in desalination plants. Four different configurations of seawater desalination plants were compared: a standard single‐stage seawater reverse osmosis (SWRO), a hybrid SWRO‐electrodialysis (ED) system, a nanofiltration (NF)‐SWRO system, and an NF‐SWRO‐ED. Based on the laboratory results, the overall water recovery, energy consumption, scaling risk, and the composition of the generated waste brine were projected. An NF‐SWRO‐ED system was found as the best choice. The proposed system is able to produce highly concentrated brine, close to saturation with respect to sodium chloride. The brine can be further used in evaporated salt production or in the chlor‐alkali industry.
Improved Performance of Ionic Liquid Supercapacitors by using Tetracyanoborate Anions
Authors: Martins Vitor L. , Rennie Anthony J. R. , Sanchez‐Ramirez Nedher , Torresi Roberto M. , Hall Peter J. 
Published: December 2017

AbstractSupercapacitors are energy storage devices designed to operate at higher power densities than conventional batteries, but their energy density is still too low for many applications. Efforts are made to design new electrolytes with wider electrochemical windows than aqueous or conventional organic electrolytes in order to increase energy density. Ionic liquids (ILs) with wide electrochemical stability windows are excellent candidates to be employed as supercapacitor electrolytes. ILs containing tetracyanoborate anions [B(CN)4] offer wider electrochemical stability than conventional electrolytes and maintain a high ionic conductivity (6.9 mS cm−1). Herein, we report the use of ILs containing the [B(CN)4] anion for such an application. They presented a high maximum operating voltage of 3.7 V, and two‐electrode devices demonstrate high specific capacitances even when operating at relatively high rates (ca. 20 F g−1 @ 15 A g−1). This supercapacitor stored more energy and operated at a higher power at all rates studied when compared with cells using a commonly studied ILs.
A Coordination Chemistry Approach to Fine‐Tune the Physicochemical Parameters of Lanthanide Complexes Relevant to Medical Applications
Authors: Le Fur Mariane , Molnár Enikő , Beyler Maryline , Kálmán Ferenc K. , Fougère Olivier , Esteban‐Gómez David , Rousseaux Olivier , Tripier Raphaël , Tircsó Gyula , Platas‐Iglesias Carlos 
Published: December 2017

AbstractThe geometric features of two pyclen‐based ligands possessing identical donor atoms but different site organization have a profound impact in their complexation properties toward lanthanide ions. The ligand containing two acetate groups and a picolinate arm arranged in a symmetrical fashion (L1) forms a Gd3+ complex being two orders of magnitude less stable than its dissymmetric analogue GdL2. Besides, GdL1 experiences a much faster dissociation following the acid‐catalyzed mechanism than GdL2. On the contrary, GdL1 exhibits a lower exchange rate of the coordinated water molecule compared to GdL2. These very different properties are related to different strengths of the Gd‐ligand bonds associated to steric effects, which hinder the coordination of a water molecule in GdL2 and the binding of acetate groups in GdL1.
Evaluation of the effects of AlkylPhenolic compounds on kinetic parameters in a moving bed biofilm reactor
Authors: Mohammadi Farzaneh , Bina Bijan , Amin Mohammad Mehdi , Pourzamani Hamid Reza , Yavari Zeynab , Shams Mohammad Reza 
Published: December 2017

AbstractAlkylphenols (APs) received great attention in the past decade because they were on the priority hazardous substances list. The kinetics of a lab‐scale moving bed biofilm reactor (MBBR) that was fed with synthetic wastewater containing 4‐NonylPhenol (4‐NP) and 4‐tert‐OctylPhenol (4‐t‐OP) was investigated in this paper. The MBBR reactor was evaluated under different APs, organic loading rates, and hydraulic retention times (HRT). The substrate removal rate was predicted with the first‐order, second‐order, Stover‐Kincannon, and Monod substrate removal models. 4‐NP and 4‐t‐OP pollutants were removed in the different percentages of 87.1 to 99.9 % and 83.2 to 99.9 %, respectively. Biokinetic parameters, like Y, KS, k, μmax, and kd, that would be favourable to design an MBBR were evaluated. Based on the results, the second‐order (Grau), Stover‐Kincannon, and Monod models were observed to be the most suitable for this reactor. These models showed high correlation coefficients of about 99.6, 99.1, and 92.9 %, respectively. Consequently, these models could be utilized in anticipating the performance and design of MBBR reactors.
Cover Picture: Visible Light Accelerated Vinyl C–H Arylation in Pd‐Catalysis: Application in the Synthesis of ortho Tetra‐substituted Vinylarene Atropisomers (Chin. J. Chem. 1/2018)
Authors: Feng Jia , Li Bin , Jiang Julong , Zhang Mingkai , Ouyang Wenbai , Li Chunyu , Fu Yao , Gu Zhenhua 
Published: December 2017

The cover picture shows a protocol of a palladium‐catalyzed arylation of vinylarenes with diaryliodonium salts with the assistance of visible light. A palladium‐vinylarene complex may be excited via the visible light irradiation, where the kinetic isotope effect (kH/kD) was around 1.1. However under darkness, the reaction proceeded very slowly, and the kinetic isotope was found as 3.6, indicating the C—H bond cleavage step is the rate‐determining step. This protocol avoided high reaction temperature and enabled us to access a series of ortho tetra‐substituted vinylarene atropisomers with high enantiospecificity. More details are discussed in the article by Gu et al. on page 11–14.
image
Appropriateness vs value: Echocardiography in primary care
Authors: Bethge Amy , Penciu Oana , Baksh Salma , Parve Swapnil , Lobraico Jessika , Keller Andrew M. 
Published: December 2017

BackgroundDespite efforts targeting the growth of healthcare spending within the United States, the current increase in expenditures remains a widespread systemic issue. The overuse of healthcare testing has previously been identified as a modifiable contributing factor. One such test, echocardiography, has seen a continuous increase in its rate of use. This test is frequently ordered by primary‐care physicians.HypothesisIn the setting of a low likelihood of disease, echocardiography does not substantially change cardiac therapy, even if appropriately ordered.MethodsWe randomly identified 500 patients who received an echocardiogram ordered by a primary‐care physician between January 1, 2014, and December 31, 2014. Of these, 239 patient charts were reviewed and the following extracted: primary indication for the test, echocardiogram results, and changes in patient medical management. In addition, appropriateness of the test was assessed using the appropriate use criteria guidelines for echocardiography.ResultsNearly 97% of the studies within the ambulatory primary‐care setting were appropriately ordered according to the appropriate use criteria. Among the 239 patients studied, only 52 had abnormalities and only 6 (2.5%) experienced a change in management that corresponded with the initial suspected diagnosis and echocardiographic findings.ConclusionsTo ensure the greatest value and optimize use of diagnostic testing, it may be necessary to develop a more comprehensive set of guidelines to assist clinicians to readily identify patient populations at low, moderate, and high risk for the presence of disease and provide educational interventions, including feedback regarding individual ordering behaviors.