bluuebunny/crossref_metadata_2025_split huggingface dataset:
Seismic structure and magmatic construction of crust at the ultraslow‐spreading Southwest Indian Ridge at 50°28'E
Authors: Jian Hanchao , Chen Yongshun John , Singh Satish C. , Li Jiabiao , Zhao Minghui , Ruan Aiguo , Qiu Xuelin 
Published: November 2016

AbstractWe present a three‐dimensional crustal structure of a magmatically robust segment of the ultraslow‐spreading Southwest Indian Ridge at 50°28'E based on tomographic inversions of an ocean bottom seismometer data set. Our results show an upper crustal low‐velocity band in the axial zone, which is attributed to increased porosities due to active extensions, leading to anisotropy in the upper crust with a fast direction subperpendicular to the spreading direction. In the lower crust, the results reveal a round‐shaped low‐velocity anomaly at the segment center, indicative of high temperatures and/or a small amount of melt, suggestive of the presence of an axial magma chamber. At the midcrustal depth, an along‐axis asymmetry is observed with respect to the segment center. While a small low‐velocity anomaly indicates lateral magma redistribution toward the western segment end, the deep‐penetrating low velocities and high velocity gradients toward the eastern end suggest that the crust is colder and contains a thicker fractured layer. This asymmetry occurs very close to the axial magma chamber (<5 km) and seems to be related to the fact that the oblique‐spreading domain at the eastern end offsets the ridge axis by a larger distance than that at the western end. We suggest that an along‐axis deep‐penetrating hydrothermal circulation develops on the east side of the axial magma chamber, in response to the rapid change from orthogonal‐ to oblique‐spreading domains and cools the crust.
Comment on “Sr‐Nd isotope composition and clay mineral assemblages in Eolian dust from the central Philippine Sea over the last 600 kyr: Implications for the transport mechanism of Asian dust” by Seo et al.
Authors: Xu Zhaokai , Li Tiegang , Clift Peter D. , Wan Shiming , Cai Mingjiang , Chen Hongjin 
Published: November 2016

Key Points

Seo et al. (2014) incorrectly reflects the dominant Asian dust transporter in the western Philippine Sea during the middle‐late Quaternary
The conclusion derived from their low‐resolution clay mineral data conflicts with their Sr‐Nd isotopic data
Eastern Asian deserts are the major dust source in the western Philippine Sea during the middle‐late Quaternary
Polarimetric radar characteristics of storms with and without lightning activity
Authors: Mattos Enrique V. , Machado Luiz A. T. , Williams Earle R. , Albrecht Rachel I. 
Published: November 2016

AbstractThis paper analyzes the cloud microphysics in different layers of storms as a function of three‐dimensional total lightning density. A mobile X‐band polarimetric radar and very high frequency (VHF) sources from Lightning Mapping Array (LMA) observations during the 2011/2012 Brazil spring‐summer were used to determine the microphysical signatures of radar vertical profiles and lightning density. This study quantified the behavior of 5.3 million vertical profiles of the horizontal reflectivity (ZH), differential reflectivity (ZDR), specific differential phase (KDP), and correlation coefficient (ρHV). The principal changes in the polarimetric variables occurred only for VHF source rate density greater than 14 VHF sources per km2 in 4 min. These storms showed an enhanced positive KDP in the mixed 1 layer (from 0 to −15°C) probably associated with supercooled liquid water signatures, whereas regions with negative ZDR and KDP and moderate ZH in the mixed 2 layer (from −15 to −40°C) were possibly associated with the presence of conical graupel. The glaciated (above −40°C) and upper part of the mixed 2 layers showed a significant trend to negative KDP with an increase in lightning density, in agreement with vertical alignment of ice particle by the cloud electric field. A conceptual model that presents the microphysical signatures in storms with and without lightning activity was constructed. The observations documented in this study provide an understanding of how the combinations of polarimetric variables could help to identify storms with different lightning density and vice versa.
Bellingshausen Sea ice extent recorded in an Antarctic Peninsula ice core
Authors: Porter Stacy E. , Parkinson Claire L. , Mosley‐Thompson Ellen 
Published: November 2016

AbstractAnnual net accumulation (An) from the Bruce Plateau (BP) ice core retrieved from the Antarctic Peninsula exhibits a notable relationship with sea ice extent (SIE) in the Bellingshausen Sea. Over the satellite era, both BP An and Bellingshausen SIE are influenced by large‐scale climatic factors such as the Amundsen Sea Low, Southern Annular Mode, and Southern Oscillation. In addition to the direct response of BP An to Bellingshausen SIE (e.g., more open water as a moisture source), these large‐scale climate phenomena also link the BP and the Bellingshausen Sea indirectly such that they exhibit similar responses (e.g., northerly wind anomalies advect warm, moist air to the Antarctic Peninsula and neighboring Bellingshausen Sea, which reduces SIE and increases An). Comparison with a time series of fast ice at South Orkney Islands reveals a relationship between BP An and sea ice in the northern Weddell Sea that is relatively consistent over the twentieth century, except when it is modulated by atmospheric wave patterns described by the Trans‐Polar Index. The trend of increasing accumulation on the Bruce Plateau since ~1970 agrees with other climate records and reconstructions in the region and suggests that the current rate of sea ice loss in the Bellingshausen Sea is unrivaled in the twentieth century.
Permutation Tests: Multivariate
Authors: Pesarin Fortunato 
Published: November 2016

AbstractThis article deals with the multivariate methodology of permutation (or randomization) tests. Three different situations are met: (i) the first assumes that a single overall statistic is available; (ii) the second takes into consideration a unidimensional transformation ofq‐dimensional responses; (iii) in the third a single overall statistic is not available, or is too difficult to justify, or a single derived variable is not sufficient to capture all aspects of interest for the analysis. Testing problems in (i) and (ii) are equivalent to unidimensional ones. Problems in (iii) require recurs to the permutation testing principle provided that the global hypotheses are broken down into a finite set of subhypotheses, each provided with an unbiased partial test, and solution is found by acting in accordance with Roy's union‐intersection (UI) principle.The methodological tool to cope with these problems is the nonparametric combination (NPC) of dependent permutation tests (PTs). To illustrate the potential of UI‐NPC, two examples with multivariate data and restricted alternatives are briefly discussed. One important feature of the UI‐NPC methodology is that it frees researchers from the necessity to model and to estimate the dependence coefficients on responses and on partial tests.
Mallows'CP, Applications
Authors: Özkale M. Revan 
Published: November 2016

AbstractMallowsCpstatistic is useful as a criterion for discriminating between models and its extensions to biased estimators of regression coefficients are in usage for selecting the shrinkage parameter of the related estimator. Shrinkage parameter that results in low value ofCpindicates improvement in the predictive performance of a linear regression model when multicollinearity is present.
Cooperative Heart Disease Trials Sponsored by the National Heart, Lung, and Blood Institute (NHLBI)
Authors: Geller Nancy L. , Waclawiw Myron A. , Friedman Lawrence M. 
Published: November 2016

AbstractThis article of multicenter trials in heart disease sponsored by the United States NHLBI of the National Institutes of Health (NIH) illustrates some design and biostatistical advances that selected trials have developed or utilized effectively to answer important public health questions. Many of the design, organizational characteristics, and methods for monitoring modern clinical trials were implemented as a result of the Greenberg Report completed in 1967 and were first used in the Coronary Drug Project during the 1960s. While more recent studies employed more efficient organization, newer trial designs, and novel monitoring guidelines, the genesis of multicenter clinical trial practice in heart disease was outlined in the 1960s and that early structure has endured the test of time.
Groundwater Monitoring, Detection, and Compliance
Authors: Gibbons Robert D. , Bhaumik Dulal K. , Aryal Subhash 
Published: November 2016

AbstractAn overview of statistical issues and methods is provided relevant to the analysis of groundwater detection and compliance‐monitoring problems. The rich methodology that has been used in this area goes well beyond groundwater monitoring applications to many other areas of interest in environmental monitoring and statistics. First, we provide an overview of statistical prediction limits for normal, lognormal, and gamma random variables, as well as nonparametric alternatives. Issues related to multiple comparisons, censored data, nonnormality, and verification sampling (i.e., sequential testing) are considered in the statistical developments. Second, we provide an overview of statistical methods that are relevant for compliance monitoring, where interest is often focused on whether on‐site average concentrations exceed a health‐based regulatory standard. This leads to discussion of a variety of statistical approaches based on confidence limits for normal and nonnormal distributions and nonparametric alternatives. A distinction is made between assessment monitoring where the null hypothesis is that contaminationis notpresent and corrective action monitoring where the null hypothesis is that contaminationispresent.
Analysis of Medical Claims Data
Authors: Gibbons Robert D. 
Published: November 2016

AbstractWith the availability of large‐scale medical claims data containing complete prescription and diagnostic information for a hundred million covered lives comes considerable challenges related to design and analysis of drug safety studies based on those data. This article presents an overview of these challenges and directs the readers to experimental strategies and statistical models that hold promise for deriving unbiased estimates from these large‐scale observational data. The article considers both between‐ and within‐subject designs and analyses for cross‐sectional and longitudinal adverse drug reactions.
Effectiveness Research Using Electronic Health Records (
EHRs
)
Authors: Li Xiaochun , Shen Changyu , Li Lingling 
Published: November 2016

Abstract
We describe the scope of effective research with the focus on issues and challenges in conducting observational studies using electronic health records for establishing or assessing effectiveness. We believe that good practice guidelines of comparative effectiveness research will help researchers in enhancing the quality of their research, in transparency, reproducibility, relevance, and credibility.
Hybrid transcatheter pulmonary valve replacement: Moving into the mainstream?
Authors: McElhinney Doff B. 
Published: November 2016

Key Points

In this and prior small series, hybrid transcatheter pulmonary valve replacement (TPVR) yields similar acute outcomes to surgical pulmonary valve replacement (PVR) in patients with postoperative pulmonary regurgitation and a right ventricular outflow tract (RVOT) that is too large for conventional TPVR
By expanding the options for pulmonary valve replacement (PVR) in high‐risk patients, hybrid TPVR will broaden the therapeutic toolset and facilitate more personalized, patient‐specific management in complex circumstances
Although surgical exposure and RVOT size reduction allows implantation of a prosthetic valve without cardiopulmonary bypass in this population, the morbidity advantage of TPVR is reduced and the net benefit to the patient must still be established
Long‐term outcomes of the SMART stent in femoro‐popliteal disease in TASC A/B lesions and TASC C/D lesions
Authors: Echeverria Angela , Krajcer Zvonimir 
Published: November 2016

Key Points

Self‐expanding nitinol stents are the standard of care in the endovascular treatment of femoro‐popliteal disease
In‐stent re‐stenosis, fracture, and occlusion are known risks when deployed in this anatomic region
Lesion length >200 mm, hemodialysis, and TASC C/D lesions are independent predictors for decreased patency long‐term.
Does the AToMIC trial explode concerns of contrast coagulopathy?
Authors: Seto Arnold H. , Kern Morton J. 
Published: November 2016

Key Points

Prior laboratory and animal studies suggested some advantage of ioxaglate over iodixanol in platelet function and coagulation.
The AToMIC trial randomized 100 patients to ioxaglate or iodixanol, and found no differences in hemostasis parameters.
Laboratory models and tests of hemostasis are limited for predicting clinical effects and should be interpreted with caution.
ChemInform Abstract: Metal ion Displacements in Noncentrosymmetric Chalcogenides La3Ga1.67S7, La3Ag0.6GaCh7 (Ch: S, Se), and La3MGaSe7 (M: Zn, Cd).
Authors: Iyer Abishek K. , Yin Wenlong , Rudyk Brent W. , Lin Xinsong , Nilges Tom , Mar Arthur 
Published: November 2016

AbstractThe ternary and quaternary Ga‐containing chalcogenides of title are prepared by solid state reactions of the elements in stoichiometric quantities (evacuated silica tubes, 950 °C, 3 d).
ChemInform Abstract: Ternary Germanides RERhGe2 (RE: Y, Gd‐Ho) — New Representatives of the YIrGe2 Type.
Authors: Vosswinkel Daniel , Heletta Lukas , Hoffmann Rolf‐Dieter , Poettgen Rainer 
Published: November 2016

AbstractThe title germanides are prepared by repeated arc melting of stoichiometric amounts of the elements.
ChemInform Abstract: [SiSxHy]n — Perhydridopolysilathianes: Cross‐Linked Thio Analogues of Polysiloxanes.
Authors: Gerwig Maik , Schwarz Marcus , Brendler Erica , Kroke Edwin 
Published: November 2016

AbstractThe title perhydridopolysilathianes are prepared by transsilylation and condensation of HSiCl3·2Py with a five‐fold stoichiometric excess of gaseous Tms2S and Py (Schlenk vessel at reduced pressure, 55 °C, 4 d) and subsequent calcination (200 °C, vacuum, 2 h).
ChemInform Abstract: Selective Catalytic Hofmann N‐Alkylation of Poor Nucleophilic Amines and Amides with Catalytic Amounts of Alkyl Halides.
Authors: Xu Qing , Xie Huamei , Zhang Er‐Lei , Ma Xiantao , Chen Jianhui , Yu Xiao‐Chun , Li Huan 
Published: November 2016

AbstractWater is generated as the only by‐product.
ChemInform Abstract: Enantioselective Synthesis of Fluorinated Branched Allylic Compounds via Ir‐Catalyzed Allylations of Functionalized Fluorinated Methylene Derivatives.
Authors: Zhang Hongbo , Chen Jiteng , Zhao Xiao‐Ming 
Published: November 2016

AbstractThe utility of the scalable method is demonstrated by the transformation of one products into a fluorinated liquid crystal material.
ChemInform Abstract: Gold‐Catalyzed Intermolecular Formal [3 + 2] Cycloaddition of Stabilized Vinyldiazo Derivatives and Electronically Unbiased Allenes.
Authors: Lopez Enol , Lonzi Giacomo , Gonzalez Javier , Lopez Luis A. 
Published: November 2016

AbstractA novel intermolecular coupling reaction between alkenyldiazo compounds and non‐activated allenes in the presence of a NHC gold catalyst is developed.
ChemInform Abstract: Synthesis and Reactivity of Enaminones: Synthesis of Some 1,3,4‐Thiadiazole Linked to Pyrazole, Pyridine, Benzimidazolopyrimidine, Pyrazolopyrimidine, Pyrazolotriazine and Triazolotriazine Derivatives.
Authors: Raslan Mohamed A. , Omran Omran A. 
Published: November 2016

AbstractThe 1,3,4‐thiadiazole‐enaminone (I), synthesized via reaction of the corresponding benzamide with DMF‐DMA, is used as precursor in syntheses of a wide variety of new heterocyclic compounds, including 5‐substituted‐1,3,4‐thiadiazole, hydrazone, pyrazolotriazine, and 1,2,4‐triazolotriazine derivatives.
ChemInform Abstract: Regioselective Friedel—Crafts Reaction of Electron‐Rich Benzenoid Arenes and Spiroepoxyoxindole at the Spiro‐Center: Efficient Synthesis of Benzofuroindolines and 2H‐Spiro[benzofuran]‐3,3′‐oxindoles.
Authors: Hajra Saumen , Maity Subrata , Roy Sayan 
Published: November 2016

AbstractAbout 30 derivatives such as (III) and (VI) are prepared from spiroepoxyindoles and phenolic reactants.
ChemInform Abstract: Economical Synthesis of Cyclic Carbonates from Carbon Dioxide and Halohydrins Using K2CO3.
Authors: Hirose Takuji , Shimizu Shinsuke , Qu Shujie , Shitara Hiroaki , Kodama Koichi , Wang Lin 
Published: November 2016

AbstractA highly simple, economical, and selective synthesis of five‐membered cyclic carbonates is achieved by the reaction of CO2 with 1,2‐halohydrins in the presence of K2CO3.
ChemInform Abstract: Microwave‐Assisted Domino Reactions of Propargylamines with Isothiocyanates: Selective Synthesis of 2‐Aminothiazoles and 2‐Amino‐4‐methylenethiazolines.
Authors: Scalacci Nicolo , Pelloja Chiara , Radi Marco , Castagnolo Daniele 
Published: November 2016

AbstractThe microwave‐assisted reaction of propargylamines (I) with isothiocyanates (II) gives rise to 2‐aminothiazoles (III) in moderate to good yields.
ChemInform Abstract: FeCl3‐Catalyzed Formation of Indolizine Derivatives via the 1,3‐Dipolar Cycloaddition Reaction Between Azomethine Ylides and Chalcones or Dibenzylideneacetones.
Authors: Yavari Issa , Naeimabadi Maryam , Halvagar Mohammad R. 
Published: November 2016

AbstractThe iodine and base‐mediated reaction of quinaldine (I) and pyridine (II) generates in situ an azomethine ylide which reacts in an FeCl3‐catalyzed process with chalcone derivatives (III) to afford title compounds (IV) in moderate to good yields.
ChemInform Abstract: Sonochemical FeF3 Catalyzed Three‐Component Synthesis of Densely Functionalized Tetrahydroindazolo[3,2‐b]quinazoline under Solvent‐Free Conditions.
Authors: Shinde Vijay Vilas , Jeong Yeon Tae 
Published: November 2016

AbstractIn comparison to conventional methods, the protocol provides advantages such as good to high yields, shorter reaction times, and bypass for use of solvent and column chromatography.
ChemInform Abstract: Synthesis of Biaryl Sultams Using Visible‐Light‐Promoted Denitrogenative Cyclization of 1,2,3,4‐Benzothiatriazine‐1,1‐dioxides.
Authors: Han Yue‐Yue , Wang Hao , Yu Shouyun 
Published: November 2016

AbstractA novel approach to biaryl sultams by photo‐induced denitrogenative cyclization of 1,2,3,4‐benzothiatriazine‐1,1‐dioxides is developed.
ChemInform Abstract: Microwave‐Assisted Biginelli Reaction: An Old Reaction, a New Perspective
Authors: Heravi Majid M. , Ghavidel Mahdieh , Heidari Bahareh 
Published: November 2016

AbstractReview: recent advances in the Biginelli reaction, leading to the synthesis of 3,4‐dihdropyrimidin‐2(1H)‐ones
An empirical test of the interpersonal theory of suicide in a heterogeneous eating disorder sample
Authors: Pisetsky Emily M. , Crow Scott J. , Peterson Carol B. 
Published: November 2016

ABSTRACTObjectiveThe Interpersonal Theory of Suicide (IPTS) model has not been fully tested in a clinical eating disorder (ED) population.MethodParticipants (N = 114) completed questionnaires assessing suicidal ideation (SI), suicide attempts (SA), and constructs of the IPTS. Logistic regressions determined whether thwarted belongingness and perceived burdensomeness were associated with lifetime SI. Among those who endorsed lifetime SI, logistic regressions were used to determine whether elements of the acquired capability for suicide (fearlessness about death and painful and provocative events) were associated with lifetime SA.ResultsSixty‐five participants (57.0%) had lifetime SI and 24 (21.1%) had lifetime SA. Thwarted belongingness (P < 0.001) and perceived burdensomeness (P < 0.01) were associated with lifetime SI. Painful and provocative events were associated with lifetime SA (P < 0.03).DiscussionThe IPTS was partially supported. Targeting interpersonal variables may be important in treating and preventing suicidality. © 2016 Wiley Periodicals, Inc.(Int J Eat Disord 2017; 50:162–165)
Current Control of a Single‐Phase Inverter by Applying a Multisampling Method
Authors: TAKEUCHI SHUN , WADA KENJI 
Published: November 2016

SUMMARYIn digitally controlled circuits for power electronic circuits, sampling data are important because the digital control circuit is operated on the basis of these data. If the sampled values have been affected by switching noise from the power circuit, the control stability of the circuit would be disturbed. This paper proposes a noiseless sampling method that can sample a value without being affected by the switching noise. The synchronous sampling method may be affected by the switching noise depending on the duty ratio of the circuit. The noiseless sampling method does not obtain data immediately after turn‐on and turn‐off switching. The control circuit can avoid the switching noise by using noiseless sampling, which leads to a disturbance in the control circuit and enhances the robustness of the circuit when applying the multisampling method. Experimental results are presented to verify that the current control of the proposed sampling method is not disturbed by the switching noise even in the absence of a noise filter.
A Programmable Divider with 50% Duty Cycle Unrelated to Dividing Cycle and Its Application to PLL
Authors: HARADA YUJIRO , YAHARA MITSUTOSHI , MATSUMOTO KINYA , FUJIMOTO KUNIAKI 
Published: November 2016

SUMMARYRecently, a signal processing using positive and negative edges of clock is used by memory and various digital devices to improve performance of digital circuits. In a signal processing using double edges, 50% duty cycle of an output signal of clock generator is an important factor. In this paper, we propose the programmable divider with which we always obtain the output signal of 50% duty cycle unrelated to the division ratio. The circuit configuration of this divider is very simple, and the operation is stable regardless of the increase in the division ratio. Also, when the proposed divider was included in the division ratio changeable‐digital phase locked loop (DC‐PLL), the output signal is always kept to 50% duty cycle regardless of the frequency of input signal. In experimental results using a field programmable gate array, we confirmed that this DC‐PLL has the expected characteristics for phase error, lock‐in range, and initial pull‐in.