bluuebunny/crossref_metadata_2025_split huggingface dataset:
“Sweet Little Lies”
Authors: Kasten Nadine , Freund Philipp Alexander , Staufenbiel Thomas 
Published: August 2018

Abstract. Two laboratory studies examined the potential differences in the susceptibility to faking between a construct-oriented Situational Judgment Test (SJT) that measured conscientiousness and a traditional self-report measure of personality (NEO-FFI). In both studies, the mean differences between the honest and faked conscientiousness scores indicated that the NEO-FFI was more susceptible to faking than the SJT. In Study 1, we applied a within-subjects design ( N = 137) and analyzed these differences in light of selected predictor variables derived from models of faking behavior. As a result, faking on the SJT was explained by cognitive ability alone, whereas faking on the NEO-FFI was also dependent on other personality traits that are associated with the ability to fake. In Study 2 ( N = 602), the susceptibility to faking was predicted by differences in faking styles. The results of the mixed Rasch model analyses indicated profound differences in the measures in terms of the way the response scale was used.
Geothermal Heat Flux Reveals the Iceland Hotspot Track Underneath Greenland
Authors: Martos Yasmina M. , Jordan Tom A. , Catalán Manuel , Jordan Thomas M. , Bamber Jonathan L. , Vaughan David G. 
Published: August 2018

AbstractCurie depths beneath Greenland are revealed by spectral analysis of data from the World Digital Magnetic Anomaly Map 2. A thermal model of the lithosphere then provides a corresponding geothermal heat flux map. This new map exhibits significantly higher frequency but lower amplitude variation than earlier heat flux maps and provides an important boundary condition for numerical ice‐sheet models and interpretation of borehole temperature profiles. In addition, it reveals new geologically significant features. Notably, we identify a prominent quasi‐linear elevated geothermal heat flux anomaly running northwest–southeast across Greenland. We interpret this feature to be the relic of the passage of the Iceland hotspot from 80 to 50 Ma. The expected partial melting of the lithosphere and magmatic underplating or intrusion into the lower crust is compatible with models of observed satellite gravity data and recent seismic observations. Our geological interpretation has potentially significant implications for the geodynamic evolution of Greenland.
Multiplex Networks: A Framework for Studying Multiprocess Multiscale Connectivity Via Coupled‐Network Theory With an Application to River Deltas
Authors: Tejedor Alejandro , Longjas Anthony , Passalacqua Paola , Moreno Yamir , Foufoula‐Georgiou Efi 
Published: August 2018

AbstractTransport of water, nutrients, or energy fluxes in many natural or coupled human natural systems occurs along different pathways that often have a wide range of transport timescales and might exchange fluxes with each other dynamically. Although network approaches have been proposed for studying connectivity and transport properties on single‐layer networks, theories considering interacting networks are lacking. We present a general framework for transport on multiscale coupled‐connectivity systems, via multilayer networks which conceptualize the system as a set of interacting networks, each arranged in a separate layer, and with interactions across layers acknowledged by interlayer links. We illustrate this framework by examining transport in river deltas as a dynamic interaction of flow within river channels and overland flow on the islands, when controlled by the flooding level. We show the potential of the framework to answer quantitative questions related to the characteristic timescale of response in the system.
Optimal F Region Electron Density for the PolarDARN Radar Echo Detection Near the Resolute Bay Zenith
Authors: Koustov A. V. , Ponomarenko P. V. , Graf C. J. , Gillies R. G. , Themens D. R. 
Published: August 2018

AbstractOperation of over‐the‐horizon radars comprising the Super Dual Auroral Radar Network (SuperDARN) relies on strong ionospheric refraction of high‐frequency (HF, f = 10–15 MHz) radiowaves such that in order to provide reliable coverage of a given geographic location, the working frequency has to be optimized with respect to the ionospheric conditions. In this work, joint observations of the Rankin Inlet, Inuvik, and Clyde River PolarDARN/SuperDARN HF radars near the Resolute Bay (RB) zenith, where the incoherent scatter radars that monitored the electron density distribution in the ionosphere, are used to assess the F region peak electron density required for HF echo detection near the RB zenith. We show that the echo occurrence rate increases with the electron density up to Ne ≈ (2 − 3) ⋅ 1011 m−3, and above this value, the occurrence rate saturates. Thus, optimum electron density for echo detection exist for every HF radar. The saturation effect is more pronounced for the Clyde River radar whose ranges of echo detection are smallest. The saturation in the dependence is reached at smaller densities for the Inuvik radar whose location is farthest from RB and for lower transmitting frequency of observations for every radar. The data presented suggest that having strong‐enough electron density in the ionosphere is the major factor for detection of HF echoes in winter or equinox.
A secretome profile indicative of oleate-induced proliferation of HepG2 hepatocellular carcinoma cells
Authors: Park Soyeon , Park Ji-Hwan , Jung Hee-Jung , Jang Jin-Hyeok , Ahn Sanghyun , Kim Younah , Suh Pann-Ghill , Chae Sehyun , Yoon Jong Hyuk , Ryu Sung Ho , Hwang Daehee 
Published: August 2018

AbstractIncreased fatty acid (FA) is often observed in highly proliferative tumors. FAs have been shown to modulate the secretion of proteins from tumor cells, contributing to tumor survival. However, the secreted factors affected by FA have not been systematically explored. Here, we found that treatment of oleate, a monounsaturated omega-9 FA, promoted the proliferation of HepG2 cells. To examine the secreted factors associated with oleate-induced cell proliferation, we performed a comprehensive secretome profiling of oleate-treated and untreated HepG2 cells. A comparison of the secretomes identified 349 differentially secreted proteins (DSPs; 145 upregulated and 192 downregulated) in oleate-treated samples, compared to untreated samples. The functional enrichment and network analyses of the DSPs revealed that the 145 upregulated secreted proteins by oleate treatment were mainly associated with cell proliferation-related processes, such as lipid metabolism, inflammatory response, and ER stress. Based on the network models of the DSPs, we selected six DSPs (MIF, THBS1, PDIA3, APOA1, FASN, and EEF2) that can represent such processes related to cell proliferation. Thus, our results provided a secretome profile indicative of an oleate-induced proliferation of HepG2 cells.
Reassessment of pre-industrial fire emissions strongly affects anthropogenic aerosol forcing
Authors: Hamilton D. S. , Hantson S. , Scott C. E. , Kaplan J. O. , Pringle K. J. , Nieradzik L. P. , Rap A. , Folberth G. A. , Spracklen D. V. , Carslaw K. S. 
Published: August 2018

AbstractUncertainty in pre-industrial natural aerosol emissions is a major component of the overall uncertainty in the radiative forcing of climate. Improved characterisation of natural emissions and their radiative effects can therefore increase the accuracy of global climate model projections. Here we show that revised assumptions about pre-industrial fire activity result in significantly increased aerosol concentrations in the pre-industrial atmosphere. Revised global model simulations predict a 35% reduction in the calculated global mean cloud albedo forcing over the Industrial Era (1750–2000 CE) compared to estimates using emissions data from the Sixth Coupled Model Intercomparison Project. An estimated upper limit to pre-industrial fire emissions results in a much greater (91%) reduction in forcing. When compared to 26 other uncertain parameters or inputs in our model, pre-industrial fire emissions are by far the single largest source of uncertainty in pre-industrial aerosol concentrations, and hence in our understanding of the magnitude of the historical radiative forcing due to anthropogenic aerosol emissions.
A selective inhibitor of ceramide synthase 1 reveals a novel role in fat metabolism
Authors: Turner Nigel , Lim Xin Ying , Toop Hamish D. , Osborne Brenna , Brandon Amanda E. , Taylor Elysha N. , Fiveash Corrine E. , Govindaraju Hemna , Teo Jonathan D. , McEwen Holly P. , Couttas Timothy A. , Butler Stephen M. , Das Abhirup , Kowalski Greg M. , Bruce Clinton R. , Hoehn Kyle L. , Fath Thomas , Schmitz-Peiffer Carsten , Cooney Gregory J. , Montgomery Magdalene K. , Morris Jonathan C. , Don Anthony S. 
Published: August 2018

AbstractSpecific forms of the lipid ceramide, synthesized by the ceramide synthase enzyme family, are believed to regulate metabolic physiology. Genetic mouse models have established C16 ceramide as a driver of insulin resistance in liver and adipose tissue. C18 ceramide, synthesized by ceramide synthase 1 (CerS1), is abundant in skeletal muscle and suggested to promote insulin resistance in humans. We herein describe the first isoform-specific ceramide synthase inhibitor, P053, which inhibits CerS1 with nanomolar potency. Lipidomic profiling shows that P053 is highly selective for CerS1. Daily P053 administration to mice fed a high-fat diet (HFD) increases fatty acid oxidation in skeletal muscle and impedes increases in muscle triglycerides and adiposity, but does not protect against HFD-induced insulin resistance. Our inhibitor therefore allowed us to define a role for CerS1 as an endogenous inhibitor of mitochondrial fatty acid oxidation in muscle and regulator of whole-body adiposity.
Dual stimuli-responsive rotaxane-branched dendrimers with reversible dimension modulation
Authors: Wang Xu-Qing , Wang Wei , Li Wei-Jian , Chen Li-Jun , Yao Rui , Yin Guang-Qiang , Wang Yu-Xuan , Zhang Ying , Huang Junlin , Tan Hongwei , Yu Yihua , Li Xiaopeng , Xu Lin , Yang Hai-Bo 
Published: August 2018

AbstractWith the aim of mimicking biological machines, in which the delicate arrangement of nanomechanical units lead to the output of specific functions upon the external stimulus, the construction of dual stimuli-responsive rotaxane-branched dendrimers was realized in this study. Starting from a switchable organometallic [2]rotaxane precursor, the employment of a controllable divergent approach allowed for the successful synthesis of a family of rotaxane-branched dendrimers up to the third generation with 21 switchable rotaxane moieties located on each branch. More importantly, upon the addition and removal of dimethylsulfoxide (DMSO) molecule or acetate anion as the external stimulus, the amplified responsiveness of the switchable rotaxane units endowed the resultant rotaxane-branched dendrimers the solvent- or anion-controlled molecular motions, thus leading to the dimension modulation. Therefore, we successfully constructed a family of rotaxane-branched dendrimers with dual stimuli-responsiveness that will be a privileged platform for the construction of dynamic supramolecular materials.
Comparison between transoral laser surgery and radiotherapy in the treatment of early glottic cancer: A systematic review and meta-analysis
Authors: Guimarães André Vicente , Dedivitis Rogério Aparecido , Matos Leandro Luongo , Aires Felipe Toyama , Cernea Claudio Roberto 
Published: August 2018

AbstractA therapeutic decision in the treatment of Tis/T1a glottic carcinoma with radiotherapy (RT) or transoral laser surgery (TOS) is still an open issue. Oncologic outcome and voice quality may support the choice for the latter To conduct a systematic review and meta-analysis to compare oncologic and functional outcomes of TOS and RT as treatment options for Tis/T1a glottic cancer. Literature research on online databases was carried out. Potentially eligible articles were reviewed. Relevant articles were selected and evaluated. There was statistical significance favoring patients initially treated with TOS when it comes to overall survival, disease-specific survival and larynx preservation. No difference in local control was found. TMF, Jitter and Shimmmer measurements presented statistically significant results in favor of RT. Self-assessment of voice quality (VHI) and f0 showed no statistically significant differences. Maximum Phonation Time (MPT) had a better response to RT. There is a trend in favor of RT. Tis/T1a glottic cancer patients submitted to TOS had significant overall and disease specific survival and had fewer risks of having a total laryngectomy, when compared to the radiotherapy group. The self-assessment of voice quality and f0 did not show any difference; however, Jitter, Shimmer and MPT measurements favored radiotherapy.
Synchronous multi-color laser network with daily sub-femtosecond timing drift
Authors: Şafak Kemal , Xin Ming , Peng Michael Y. , Kärtner Franz X. 
Published: August 2018

AbstractFilming atoms in motion with sub-atomic spatiotemporal resolution is one of the distinguished scientific endeavors of our time. Newly emerging X-ray laser facilities are the most likely candidates to enable such a detailed gazing of atoms due to their angstrom-level radiation wavelength. To provide the necessary temporal resolution, numerous mode-locked lasers must be synchronized with ultra-high precision across kilometer-distances. Here, we demonstrate a metronome synchronizing a network of pulsed-lasers operating at different center wavelengths and different repetition rates over 4.7-km distance. The network achieves a record-low timing drift of 0.6 fs RMS measured with 2-Hz sampling over 40 h. Short-term stability measurements show an out-of-loop timing jitter of only 1.3 fs RMS integrated from 1 Hz to 1 MHz. To validate the network performance, we present a comprehensive noise analysis based on the feedback flow between the setup elements. Our analysis identifies nine uncorrelated noise sources, out of which the slave laser’s inherent jitter dominates with 1.26 fs RMS. This suggests that the timing precision of the network is not limited by the synchronization technique, and so could be much further improved by developing lasers with lower inherent noise.
Exploring the possibilities of dynamical quantum phase transitions in the presence of a Markovian bath
Authors: Bandyopadhyay Souvik , Laha Sudarshana , Bhattacharya Utso , Dutta Amit 
Published: August 2018

AbstractWe explore the possibility of dynamical quantum phase transitions (DQPTs) occurring during the temporal evolution of a quenched transverse field Ising chain coupled to a particle loss type of bath (local in Jordan-Wigner fermion space) using two versions of the Loschmidt overlap (LO), namely, the fidelity induced LO and the interferometric phase induced LO. The bath, on the one hand, dictates the dissipative evolution following a sudden quench and on the other, plays a role in dissipative mixed state preparation in the later part of the study. During a dissipative evolution following a sudden quench, no trace of DQPTs are revealed in both the fidelity and the interferometric phase approaches; however, remarkably the interferometric phase approach reveals the possibility of inter-steady state DQPTs in passage from one steady state to the other when the system is subjected to a quench after having reached the first steady state. We further probe the occurrences of DQPTs when the system evolves unitarily after being prepared in a mixed state of engineered purity by ramping the transverse field in a linear fashion in the presence of the bath. In this case though the fidelity approach fails to indicate any DQPT, the interferometric approach indeed unravels the possibility of occurrence of DQPTs which persists even up to a considerable loss of purity of the engineered initial state as long as a constraint relation involving the dissipative coupling and ramping time (rate) is satisfied. This constraint relation also marks the boundary between two dynamically inequivalent phases; in one the LO vanishes for the critical momentum mode (and hence DQPTs exist) while in the other no such critical mode can exist and hence the LO never vanishes.
Four‐bit W‐band switched line phase shifter in 90 nm SiGe
Authors: Chieh J.C.S. , Rowland J. , Sharma S. 
Published: August 2018

A switched delay line phase shifter implemented in a 90 nm SiGe BiCMOS process utilising PIN diodes is presented. The 4‐bit phase shifter utilises four SP4T switches for a simplified architecture. The frequency of operation is from 75 to 100 GHz, and the simulated input referred P1dB is 28.5 dBm. This type of phase shifter is especially suitable for high power transmit linear phased arrays. The chip occupies an area of 2.76 mm2 including the pads.
T–S fuzzy‐based multi‐LAE approach for sensor linearisation
Authors: Sarawade Prashant Dattatraya , Srinivasan Kannan 
Published: August 2018

Most sensors exhibit a non‐linear input–output relationship. Sensor linearity is essential for the true representation of measurand in modern instrumentation systems. Although several linearisation techniques (LTs) have been proposed in recent years, they incur common problems of scalability, reliability, flexibility, complexity and cost. Hence, an effective software lineariser is needed to overcome these difficulties. This study presents a Takagi–Sugeno (T–S) fuzzy‐based sensor LT using piecewise linearisation. The non‐linear static relationship splits into ‘N’ multiple linear algebraic equations, which are combined using T–S fuzzy logic to ensure a smooth transfer from one region to another. The linearity (mean square error) of 0.1663 is obtained for negative temperature coefficient thermistor in simulation over a temperature range of 307 to 373 K, and of 0.0255 is achieved for infrared sensor in real time over a distance range of 12–30 cm. The performance of the proposed LT is compared with popular curve fitting, a look‐up table and soft computing approaches. The results show that the proposed LT outperforms other approaches regarding performance indices. This technique eliminates hardware complexity rendering better accuracy over the span of measurement.
ALMA observations of RCW 120 Fragmentation at 0.01 pc scale
Authors: Figueira M. , Bronfman L. , Zavagno A. , Louvet F. , Lo N. , Finger R. , Rodón J. 
Published: August 2018

Context. Little is known about how high-mass stars form. Around 30% of the young high-mass stars in the Galaxy are observed at the edges of ionized (H II) regions. Therefore these are places of choice to study the earliest stages of high-mass star formation, especially toward the most massive condensations. High spatial resolution observations in the millimeter range might reveal how these stars form and how they assemble their mass.
Aims. We want to study the fragmentation process down to the 0.01 pc scale in the most massive condensation (1700 M⊙) observed at the southwestern edge of the H ii region RCW 120 where the most massive Herschel cores (~124 M⊙ in average) could form high-mass stars.
Methods. Using ALMA 3 mm continuum observations toward the densest and most massive millimetric condensation (Condensation 1) of RCW 120, we used the getimages and getsources algorithms to extract the sources detected with ALMA and obtained their physical parameters. The fragmentation of the Herschel cores is discussed through their Jeans mass to understand the properties of these future stars.
Results. We extracted 18 fragments from the ALMA continuum observation at 3 mm toward eight cores detected with Herschel, whose mass and deconvolved size range from 2 M⊙ to 32 M⊙ and from 1.6 mpc to 28.8 mpc, respectively. The low degree of fragmen- tation observed regarding thermal Jeans fragmentation suggests that the observed fragmentation is inconsistent with ideal gravitational fragmentation and other ingredients such as turbulence or magnetic fields should be added to explain this inconsistency. Finally, the range of the mass of the fragments indicates that the densest condensation of RCW 120 is a favorable place for the formation of high-mass stars with the presence of a probable UCH ii region associated with the 27 M⊙ Fragment 1 of Core 2.
Gaia GraL: Gaia DR2 gravitational lens systems
Authors: Krone-Martins A. , Delchambre L. , Wertz O. , Ducourant C. , Mignard F. , Teixeira R. , Klüter J. , Le Campion J.-F. , Galluccio L. , Surdej J. , Bastian U. , Wambsganss J. , Graham M. J. , Djorgovski S. G. , Slezak E. 
Published: August 2018

Context. Multiply imaged gravitationally lensed quasars are among the most interesting and useful observable extragalactic phenomena. Because their study constitutes a unique tool in various fields of astronomy, they are highly sought, but difficult to find. Even in this era of all-sky surveys, discovering them remains a great challenge, with barely a few hundred systems currently known.
Aims. We aim to discover new multiply imaged quasar candidates in the recently published Gaia Data Release 2 (DR2), which is the astrometric and photometric all-sky survey with the highest spatial resolution that achieves effective resolutions from 0.4″ to 2.2″.
Methods. We cross-matched a merged list of quasars and candidates with Gaia DR2 and found 1 839 143 counterparts within 0.5″. We then searched matches with more than two Gaia DR2 counterparts within 6″. We further narrowed the resulting list using astrometry and photometry compatibility criteria between the Gaia DR2 counterparts. A supervised machine-learning method, called extremely randomized trees, was finally adopted to assign a probability of being lensed to each remaining system.
Results. We report the discovery of two quadruply imaged quasar candidates that are fully detected in Gaia DR2. These are the most promising new quasar lens candidates from Gaia DR2 and a simple singular isothermal ellipsoid lens model is able to reproduce their image positions to within ~1 mas. This Letter demonstrates the discovery potential of Gaia for gravitational lenses.