bluuebunny/crossref_metadata_2025 huggingface dataset:
Adapting or Freezing? Ideological Reactions of Communist Regimes to a Post-Communist World
Authors: Dukalskis Alexander , Gerschewski Johannes
Published: November 2018

This article studies the ideological reactions of communist regimes to the advent of a post-communist world. It examines two cases of reformed communist regimes (China and Vietnam) with two relatively unreformed cases (North Korea and Cuba) to understand different legitimation strategies employed during and after the downfall of the Soviet Union. Theoretically, the article compares two ideal-type approaches to ideology in autocratic regimes. The first approach emphasizes semantic ‘freezing’ over time. The consistency and coherence of ideology is underlined. The second approach argues that the success of an ideology lies in its ability to be a dynamic, adaptive force that can react with changing circumstances. Four parameters help to distinguish the freeze-frame end from the adaptation pole: (1) the autonomy over semantic changes, (2) the timing, (3) the velocity and (4) the distance that an ideology moves. Using qualitative case-based analysis that is enriched with quantitative text analysis of communist party documents, this article compares these contending conceptions of ideology with each other in the four cases. Sharing similar starting conditions in the 1970s, the article shows how China and Vietnam harnessed a flexible legitimation strategy while North Korea and Cuba adopted a comparatively rigid legitimation approach.
Treatment resistant schizophrenia – review and a call to action
Authors: Lally J. , Gaughran F.
Published: November 2018

Recovery rates in schizophrenia remain suboptimal with up to one-third resistant to standard treatments, a population prevalence of 0.2%. Clozapine is the only evidenced-based treatment for treatment resistant schizophrenia (TRS), yet there are significant delays in its use or it may not be trialled, potentially impacting the chance of recovery. Better outcomes with earlier use of clozapine may be possible. There is emerging evidence that early treatment resistance is not uncommon from the earliest stages of psychosis. In this review, we provide an update on TRS, its epidemiology and its management, with a specific focus on the optimal use and timing of clozapine and augmentation strategies for the one-third of patients who do not respond to clozapine.
It’s not my job: Compensatory effects of procedural justice and goal setting on proactive preventive behavior
Authors: Ren Run , Simmons Aneika L. , Barsky Adam , See Kelly E. , Gogus Celile Itir
Published: November 2018

In two experiments, we examined the function of procedural justice in signaling individuals’ value to the group by arguing that individuals treated fairly are more likely to engage in proactive preventive behavior, a behavior that involves proactively revising or correcting the mistakes and intentional deceptions of coworkers. In addition, we extend Staw and Boettger’s (1990) work on task revision and demonstrate that procedural justice and goal setting have compensatory effects, such that procedural justice can be combined with performance goals to reap the valuable aspects of goal setting while minimizing some of the unintended side-effects. Our findings also contribute to the ongoing discussion of the mixed effects of goal setting, as well as the effects of multiple goal assignment.
Evolution of the cold gas fraction and the star formation history: Prospects with current and future radio facilities
Authors: Curran S. J.
Published: November 2018

It has recently been shown that the abundance of cold neutral gas may follow a similar evolution as the star formation history. This is physically motivated, since stars form out of this component of the neutral gas and if the case, would resolve the long-standing issue that there is a clear disparity between the total abundance of neutral gas and star-forming activity over the history of the Universe. Radio-band 21-cm absorption traces the cold gas and comparison with the Lyman-α absorption, which traces all of the gas, provides a measure of the cold gas fraction, or the spin temperature, Tspin. The recent study has shown that the spin temperature (degenerate with the ratio of the absorber/emitter extent) appears to be anti-correlated with the star formation density, ψ*, with 1/Tspin undergoing a similar steep evolution as ψ* over redshifts of 0 ≲ z ≲ 3, whereas the total neutral hydrogen exhibits little evolution. Above z ∼ 3, where ψ* shows a steep decline with redshift, there are insufficient 21-cm data to determine whether 1/Tspin continues to follow ψ*. Knowing this is paramount in ascertaining whether the cold neutral gas does trace the star formation over the Universe’s history. We explore the feasibility of resolving this with 21-cm observations of the largest contemporary sample of reliable damped Lyman-α absorption systems and conclude that, while today’s largest radio interferometers can reach the required sensitivity at z ≲ 3.5, the Square Kilometre Array is required to probe higher redshifts.
Divine command theory and psychopathy
Authors: WIELENBERG ERIK J.
Published: November 2018

I advance a novel challenge for Divine Command Theory based on the existence of psychopaths. The challenge, in a nutshell, is that Divine Command Theory has the implausible implication that psychopaths have no moral obligations and hence their evil acts, no matter how evil, are morally permissible. After explaining this argument, I respond to three objections to it and then critically examine the prospect that Divine Command Theorists might bite the bullet and accept that psychopaths can do no wrong. I conclude that the Psychopathy Objection constitutes a serious and novel challenge for Divine Command Theory.
AGING AND HEALTH TECHNOLOGY ASSESSMENT: AN IDEA WHOSE TIME HAS COME
Authors: Juzwishin Don , McNeil Heather , Ahn Jeonghoon , Chen Yingyao , Cicchetti Americo , Kume Naoto , Brooks Laura , Stolee Paul
Published: November 2018

Objectives:

With the increase in technologies to support an aging population, health technology assessment (HTA) of aging-related technologies warrants special consideration. At Health Technology Assessment international (HTAi) 2016 and HTAi 2017, an international panel explored interests in HTA focused on aging.

Methods:

Panelists from five countries shared the state of aging and HTA in their countries. Opportunities were provided for participants to discuss and rate the themes identified by the panelists.

Results:

In 2016, the highest ranked themes were: (i) identifying unmet needs of older adults that could be met by technology—how can HTA help?; (ii) differences in assessment of aging-related technologies—what is the scope?; and (iii) involvement of older adults and caregivers. These themes became the starting point for discussion in 2017, for which the highest ranked themes were: (i) identification of challenges in HTA and aging; and (ii) approaches to advancing effectiveness of HTA for aging.

Conclusion:

These discussions allowed for examination of future directions for HTA and aging: engagement of older adults to inform the agenda of HTA and the broader public policy enterprise; a systems approach to thinking about needs of older persons should support the type and level of care desired by the individual rather than the health institutions, and HTA should reflect these desires when evaluating technological aides; and there is potential for health information systems and “big data” to support HTA activities that assess usability of technologies for older adults. We hope to build on the momentum of this community to continue exploring opportunities for aging and HTA.
PRODUCTIVITY, NATIONALIZATION, AND THE ROLE OF “NEWS”: LESSONS FROM THE 1970S
Authors: Çakir Melek Nida
Published: November 2018

Occurrences of an old phenomenon, the expropriation of foreign-owned property, peaked in the 1970s when virtually every significant oil-producing developing country nationalized its oil. Nationalization was again on the rise in the 2000s. Using novel data, this paper quantitatively evaluates the effects of nationalization. First, the paper finds significant productivity losses associated with nationalization in a sample of oil-producing countries. Venezuela in particular experienced a striking decline in productivity. Second, the paper presents a new channel through which nationalization affects productivity: a long-term pre-announcement can shift the composition of the workforce with a huge decline in highly skilled foreign workers and result in higher extraction and lower exploration. Guided by a quantitative dynamic partial equilibrium framework disciplined by features of the Venezuelan data, this paper then evaluates the effects of nationalization. A comparison of the simulated and time series data shows that the model can explain about 80% of the productivity pattern over 1961–1980 in the Venezuelan oil industry. Counterfactual experiments suggest that the shift in the composition of the workforce is important in accounting for the productivity pattern. Furthermore, if nationalization had been sudden, long-run losses would have been lower.
Long-term variations in the heliosphere
Authors: Owens Mathew J. , Lockwood Mike , Riley Pete , Barnard Luke
Published: November 2018

Reconstructions of long-term solar variability underpin our understanding of the solar dynamo, potential tropospheric climate implications and future space weather scenarios. Prior to direct spacecraft measurements of the heliospheric magnetic field (HMF) and solar wind, accurate annual reconstructions are possible using geomagnetic and sunspot records. On longer timescales, information about the HMF can be extracted from cosmogenic radionuclide records, particularly 14C in ancient trees and 10Be in ice sheets. These proxies, and what they reveal about the HMF and solar wind, are briefly reviewed here.
Multivariate analysis of intermediate periodicities of the green corona
Authors: Mancuso S. , Lee T. S. , Taricco C. , Rubinetti S.
Published: November 2018

Solar activity is observed to fluctuate with time, undergoing a wide range of periodicities from minutes up to thousands of years as evinced from proxies based on cosmogenic isotopes. In this work, we apply Multichannel Singular Spectrum Analysis (MSSA), a data-adaptive, multivariate technique that simultaneously exploits the spatial and temporal correlations of the input data to extract common modes of variability to investigate the intermediate quasi-periodicities of the green coronal emission line at 530.3 nm for the period between 1944 and 2008. A preliminary MSSA analysis confirms the presence of significant quasi-biennial oscillations in the data with amplitude varying significantly with time and latitude. On the other hand, a clear North-South asymmetry is observed both in their intensity and period distribution.
Coronal magnetic field measurements using forbidden emission lines
Authors: Megha A. , Sampoorna M. , Nagendra K. N. , Sankarasubramanian K.
Published: November 2018

The polarization measurement of coronal forbidden emission lines is the most promising method of determining the direction of magnetic fields in the corona. A classical theory for the forbidden lines was presented in Megha et al. (2017) for the case of arbitrary strength magnetic fields. Here we apply that theoretical formalism to study the effect of density distributions, magnetic field configurations, and velocity fields on the Stokes profiles formed in corona. For illustrations we use the atomic parameters of the [Fe xiii] 10747 Å coronal forbidden line.
Turbulent diffusion in the photosphere as observational constraint on dynamo theories
Authors: Abramenko Valentina I.
Published: November 2018

We utilized line-of-sight magnetograms acquired by HMI/SDO to derive the value of turbulent magnetic diffusivity in undisturbed photosphere. Two areas, a coronal hole area (CH) and an area a super-granulation pattern, SG, were analyzed. The behavior of the turbulent diffusion coefficient on time scales of 1000-40000 s and spatial scales of 500-6000 km was explored. Small magnetic elements in both CH and SG areas disperse in the same way and they are more mobile than the large elements. The regime of super-diffusivity is found for small elements (the turbulent diffusion coefficient K growths from 100 to 300 km2 s−1). Large magnetic elements disperse differently in the CH and SG areas. Comparison of these results with the previously published shows that there is a tendency of saturation of the diffusion coefficient on large scales, i.e., the turbulent regime of super-diffusivity gradually ceases so that normal diffusion with a constant value of K ≈ 500 km2 s−1 might be observed on time scales longer than a day. The results show that the turbulent diffusivity should not be considered in modeling as a scalar, the flux- and scale-dependence is obvious.
Energy distribution of solar flare events
Authors: Sen S. , Mangalam A. , Ramesh R.
Published: November 2018

The coronal field typically reorganizes itself to attain a force-free field configuration. We have evaluated the power law index of the energy distribution f(E) = f0E−α by using a model of relaxation incorporating different profile functions of winding number distribution f(w) based on braided topologies. We study the radio signatures that occur in the solar corona using the radio data obtained from the Gauribidanur Radio Observatory (IIA) and extract the power law index by using the Statistic-sensitive nonlinear iterative peak clipping (SNIP) algorithm. We see that the power law index obtained from the model is in good agreement with the calculated value from the radio data observation.
Kinematic and magnetic coherent structures in solar and stellar turbulence
Authors: Chian Abraham C.-L. , Miranda Rodrigo A. , Rempel Erico L. , Schmieder Brigitte
Published: November 2018

We show that on-off intermittency in solar and stellar cycles is a result of amplitude-phase synchronization in multiscale interactions in solar/stellar dynamos or magnetorotational instability which leads to the formation of kinematic and magnetic coherent structures, and the novel techniques of Lagrangian coherent structures can detect transport barriers and vortices such as magnetic flux tubes/ropes in solar and stellar turbulence with high accuracy.
Magnesium II Index measurements from SORCE SOLSTICE and GOES-16 EUVS
Authors: Snow Martin , Machol Janet , Eparvier Francis G. , Jones Andrew R. , McClintock William E. , Woods Thomas N.
Published: November 2018

The solar magnesium II core-to-wing ratio has been a well-studied proxy for chromospheric activity since 1978. Daily measurements at high spectral (0.1 nm) resolution began with the launch of the Solar Radiation and Climate Experiment (SORCE) in 2003. The next generation of measurements from the Extreme Ultraviolet Sensor (EUVS) on the Geostationary Operational Environmental Satellite 16 (GOES-16) will add high time cadence (every 30 seconds) to the observational Mg II irradiance record. We present a comparison of the two measurements during the period of overlap.
Automated Detection Methods for Solar Activities and an Application for Statistic Analysis of Solar Filament
Authors: Hao Q. , Chen P. F. , Fang C.
Published: November 2018

With the rapid development of telescopes, both temporal cadence and the spatial resolution of observations are increasing. This in turn generates vast amount of data, which can be efficiently searched only with automated detections in order to derive the features of interest in the observations. A number of automated detection methods and algorithms have been developed for solar activities, based on the image processing and machine learning techniques. In this paper, after briefly reviewing some automated detection methods, we describe our efficient and versatile automated detection method for solar filaments. It is able not only to recognize filaments, determine the features such as the position, area, spine, and other relevant parameters, but also to trace the daily evolution of the filaments. It is applied to process the full disk Hα data observed in nearly three solar cycles, and some statistic results are presented.
Long-term variations in solar activity and planetary configurations
Authors: Javaraiah J.
Published: November 2018

We have analyzed the data on yearly mean international sunspot number (RZ) during the period 1610 – 2015 and orbital positions (ecliptic longitudes) of the giant planets in each 10-day interval during the period 1600 – 2099. We determined mean absolute difference ($\overline{\psi _D}$) of the orbital positions of the giant planets in each interval. We find that there exits a good correlation between cycle amplitude (RM, i.e. the maximum value of RZ) and the value of $\overline{\psi _D}$ at cycle maximum, suggesting that on longer time scales low/high solar activity associated with less/large spread in orbital positions of the giant planets (i.e. with a low/high value of $\overline{\psi _D}$).
Standard Magnetic Field Production at Huairou Solar Observing Station
Authors: Liu Suo , Lin Ganghua , Yang Xiao , Wang Xiaofan , Su Jiangtao , Deng Yuanyong
Published: November 2018

The regular solar observations are operated at Huairou Solar Observing Station (HSOS) since 1987, which make the construction of long-term magnetic field datasets available to understand solar magnetic field and cycles. There exist some inconveniences for solar physicist to use these data, because the data storage medium and format at HSOS experienced some changes. Additionally, the processes of magnetic field calibration are not easy to deal with for who are not familiar with these data. Here shows that the magnetic field of HSOS are further processed toward international standards, in order to explore HSOS observations data for scientific research.
Starspot activity and differential rotation in KIC 11560447
Authors: Işık Emre , Özavcı İbrahim , Şenavcı Hakan V. , Hussain Gaitee A. J. , O’Neal Douglas , Yılmaz Mesut , Selam Selim O.
Published: November 2018

Using high-precision photometry from the Kepler mission, we investigate patterns of spot activity on the K1-type subgiant component of KIC 11560447, a short-period late-type eclipsing binary. We tested the validity of maximum entropy reconstructions of starspots by numerical simulations. Our procedure successfully captures up to three large spot clusters migrating in longitude. We suggest a way to measure a lower limit for stellar differential rotation, using slopes of spot patterns in the reconstructed time-longitude diagram. We find solar-like differential rotation and recurrent spot activity with a long-term trend towards a dominant axisymmetric spot distribution during the period of observations.
Heliospheric Modulation of Cosmic Rays and Solar Activity during Solar Cycles 22-24
Authors: Singh Prithvi Raj , Tiwari C. M. , Saxena A. K.
Published: November 2018

We have studied, the relationship between monthly variations of average counting rates of cosmic ray intensity (CRI) at Moscow super neutron monitoring station with mid cut-off rigidities (~2.42 GV), and the solar radio flux at 10.7cm (F10.7) and sunspot number (SSN) during the solar cycles 22 − 24. The F10.7cm (2800 MHz) and SSN is an excellent indicator of solar activity for the study period. We have investigated the patterns of long-term and mid-term periodicities of SSN and F10.7, using Fast Fourier Transform (FFT) technique. We have observed the time-lag between ascending phase of CRI with F10.7cm and SSN during solar cycles 22 − 24.
Coronal mass ejections as a new indicator of the active Sun
Authors: Gopalswamy Nat
Published: November 2018

Coronal mass ejections (CMEs) have become one of the key indicators of solar activity, especially in terms of the consequences of the transient events in the heliosphere. Although CMEs are closely related to the sunspot number (SSN), they are also related to other closed magnetic regions on the Sun such as quiescent filament regions. This makes CMEs a better indicator of solar activity. While sunspots mainly represent the toroidal component of solar magnetism, quiescent filaments (and hence CMEs associated with them) connect the toroidal and poloidal components via the rush-to-the-pole (RTTP) phenomenon. Taking the end of RTTP in each hemisphere as an indicator of solar polarity reversal, it is shown that the north-south reversal asymmetry has a quasi-periodicity of 3-5 solar cycles. Focusing on the geospace consequences of CMEs, it is shown that the maximum CME speeds averaged over Carrington rotation period show good correlation with geomagnetic activity indices such as Dst and aa.
Variations in Ca-K line profiles and Ca-K line features as a function of latitude and solar cycle during the 20th century
Authors: Singh Jagdev , Priyal M. , Sindhuja G. , Ravindra B.
Published: November 2018

The analysis of the Ca-K line spectra as a function of latitude and integrated over the visible disk obtained during the period of 1989–2011 at the Kodaikanal Solar Tower Telescope shows that the FWHM of the K1 distribution at different latitudes varies by negligible amount at about 60° latitude whereas it varies significantly at other latitudes. Findings, especially the fewer variations in mid-latitude belts as compared to polar regions and complex variation in the shift in the activity around 60° latitude belt, will have important implications on the modeling of solar dynamos. Further, we have generated a uniform set of digitized Ca-K line images by selecting images considering the intensity distribution of the images corrected for the instrumental vignetting for the data obtained at Kodaikanal during the 20th century. Then, we have determined the percentage of plage and network areas by using the intensity and area threshold values.
Solar Activity Changes During Prolonged Sunspot Minima as Inferred from Indian Monsoon Rainfall Variations
Authors: Ambily S. , Haritha V. G. , Morais C. Sunil Kumar , Girish T. E.
Published: November 2018

We could find a new 5 year periodicity in the occurrences of peaks in sunspot activity and inferred deviations of annual Indian monsoon rainfall variations from the normal during the Maunder minimum (MM) period. This result is explained in terms of solar dynamo functioning in a different mode from normal during the MM where quadrupole field (first harmonic, 5-5.5 years) dominate over dipole field (fundamental, 11 years) causing extreme north south asymmetry in sunspot activity.
Long term trends in solar photospheric fields and solar wind turbulence levels: Implications to the near-Earth space
Authors: Janardhan P. , Fujiki K. , Ingale M. , Bisoi S. K. , Ananthakrishnan S.
Published: November 2018

We re-examined solar polar magnetic fields, using ground based synoptic photospheric magnetograms, during solar cycle 24. IThe signed polar magnetic fields showed an unusual hemispheric asymmetry in the polar field reversal process with a single unambigous reversal in the Southern hemisphere around late 2013 while the polar reversal in the Northern hemisphere started earlier around June 2012, but was completed only by the end of 2014. The examination of the unsigned polar magnetic fields in cycle 24 showed a continuing decline of fields in the Northern hemisphere whereas in the Southern hemisphere, it had partially recovered. However, the overall declining trend in solar polar fields, which began in the mid-1990’s, is still in progress. The continued decline seen in solar photospheric fields raises thequestion of whether we are heading towards a Grand or Maunder like solar minimum.
Geometric and magnetic properties of coronal flux ropes associated with CMEs leading to geomagnetic storms
Authors: Sarkar Ranadeep , Srivastava Nandita
Published: November 2018

We have studied three Interplanetary Coronal Mass Ejections (ICMEs) having clear signatures of magnetic cloud (MC) arrival at 1 AU and their associated solar sources during 2011 to 2013. Comparing the axial magnetic field strength (B0) of the near-Sun coronal flux-ropes with that of the MC at 1 AU, we have found that the average inferred value of B0 at 1 AU assuming the self-similar expansion of the flux-rope is two times smaller than the value of B0 obtained from the results of MC fitting. Furthermore, by comparing the initial orientation of the flux-rope near the Sun and its final orientation at 1 AU we have found that the three CMEs exhibited more than 80° rotation during its propagation through the interplanetary medium. Our study suggests that although the near-Sun magnetic properties of coronal flux-ropes can be used to infer the field strength of the associated MC at 1 AU, it is difficult to estimate the final orientation of the MC axis in order to predict the geo-effectiveness of the ICMEs.
Long-term variability of the solar cycle in the Babcock-Leighton dynamo framework
Authors: Karak Bidya Binay , Miesch Mark
Published: November 2018

We explore the cause of the solar cycle variabilities using a novel 3D Babcock–Leighton dynamo model. In this model, based on the toroidal flux at the base of the convection zone, bipolar magnetic regions (BMRs) are produced with statistical properties obtained from observed distributions. We find that a little quenching in BMR tilt is sufficient to stabilize the dynamo growth. The randomness and nonlinearity in the BMR emergences make the poloidal field unequal and cause some variability in the solar cycle. However, when observed scatter of BMR tilts around Joy’s law with a standard deviation of 15°, is considered, our model produces a variation in the solar cycle, including north-south asymmetry comparable to the observations. The morphology of magnetic fields closely resembles observations, in particular the surface radial field possesses a more mixed polarity field. Observed scatter also produces grand minima. In 11,650 years of simulation, 17 grand minima are detected and 11% of its time the model remained in these grand minima. When we double the tilt scatter, the model produces correct statistics of grand minima. Importantly, the dynamo continues even during grand minima with only a few BMRs, without requiring any additional alpha effect. The reason for this is the downward magnetic pumping which suppresses the diffusion of the magnetic flux across the surface. The magnetic pumping also helps to achieve 11-year magnetic cycle using the observed BMR flux distribution, even at the high diffusivity.
Large-scale flows in the Sun: Characteristics and time variations
Authors: Basu Sarbani
Published: November 2018

The study of solar rotation has a 150-year history. Early studies were restricted to looking at the movement of sunspots; much later came studies using other tracers such as supergranules, and spectroscopic measurements using Doppler shifts of spectral lines. These studies also found evidence of other large-scale flows, such as the meridional flows in the north-south direction and the zonal flows, or torsional oscillations, parallel to the equator. However, until the 1980s, the study of solar rotation and large-scale flows was restricted to what could be observed on the solar surface. The advent of good helioseismic data changed that and gave us the means to study flows in the solar interior. Instruments like GONG, MDI and HMI have now collected helioseismic data for two solar cycles and these also allow us to study the large scale flows and their variations with time and solar activity. We review what the long data sets tell us about the these flows and discuss some of the differences between solar cycles 23 and 24.
Ambiguity of the Solar Meridional Flow
Authors: Böning Vincent G. A.
Published: November 2018

Recent helioseismic estimates of the deep solar meridional flow have been contradictory. Using two years worth of GONG data, I show here that the detection of the meridional flow is ambiguous below about 0.85 solar radii.
Evolution of structures with an open magnetic flux over a hundred years
Authors: Tlatov Andrey
Published: November 2018

Reconstruction of regions with an open configuration of magnetic force lines was carried out according to synoptic Hα maps over a period of more than 100 years. It is shown that the maximum area of open structures in the cycle of solar activity is reached in the descending phase, 1÷2 years before the onset of the minimum. The total area of open structures in the current cycle n has a high correlation (r ~ 0.8) with the amplitude of the next activity cycle n + 1. There is also a secular envelope with a maximum in the middle of the 20th century.
Multiple Solar Jets from NOAA AR 12644
Authors: Joshi Reetika , Chandra Ramesh
Published: November 2018

We present here the observations of solar jets observed on April 04, 2017 from NOAA active region (AR) 12644 using high temporal and spatial resolution AIA instrument. We have observed around twelve recurring jets during the whole day. Magnetic flux emergence and cancellation have been observed at the jet location. The multi-band observations evidenced that these jets were triggered due to the magnetic reconnection at low coronal null–point.
Decades of Chinese Solar and Geophysical Data
Authors: Yan Yan , Du Zhan-Le , Wang Hua-Ning , He Han , Guo Juan , Huang Xin , Zhu Xiao-Shuai , Dai Xing-Hua , Lin Gang-Hua
Published: November 2018

The Chinese Solar and Geophysical Data (CSGD) was first issued at the Beijing Astronomical Observatory, Chinese Academy of Sciences (now the headquarter of the National Astronomical Observatories, Chinese Academy of Sciences) in 1971, when China’s satellite-industry was booming. CSGD covers the observational data (observations of the sunspots, solar flares, solar radio bursts, ionospheric storm and geomagnetic storm) from a couple of domestic observatories and the forecast data. The compiler of CSGD still keeps the data exchange with other institutes worldwide. The type of the dataset includes texts, tables, figures and so on. Up to now, we have electronized all the historic archives, making them easily accessible to people who are interested in them.
Automated detection of Coronal Mass Ejections in Visible Emission Line Coronagraph (VELC) on-board ADITYA-L1
Authors: Patel Ritesh , Amareswari K. , Pant Vaibhav , Banerjee Dipankar , Sankarasubramanian K.
Published: November 2018

An onboard automated coronal mass ejections (CMEs) detection algorithm has been developed for Visible Emission Line Coronagraph (VELC) onboard ADITYA-L1. The aim of this algorithm is to reduce the load on telemetry by sending the high spatial (~ 2.51 arcsec pixel−1) and temporal (1 s) resolution images of corona from 1.05 R⊙ to 3 R⊙, containing CMEs and rejecting others. It is based on intensity thresholding followed by an area thresholding in successive running difference images which are re-binned to lower resolution to improve signal to noise. Here we present the results of application of the algorithm on synthetic corona images generated for the VELC field of view (FOV).
Superposed Epoch Analysis of High Latitude Ionospheric Joule Heating during Major Geomagnetic Storms over three Solar Cycles
Authors: Suji K. J. , Prince P. R.
Published: November 2018

Superposed epoch analysis (SPEA) is commonly used to determine some basic structure in a collection of geophysical time series. The present study tries to analyze ionospheric Joule heating response at high latitudes, to the prevailing solar wind and IMF conditions on the basis of SPEA. Major geomagnetic storms (CME driven) over three consecutive solar cycles (SC 22, 23 and 24) have been selected. Ascending phase, solar maximum, and declining phase are investigated separately, for each solar cycle, to find out crucial controlling parameters for the generation of high-latitude ionospheric Joule heating. SPEA results show that, IMF parameters such as IMF By, IMF Bz, IMF clock angle and solar wind parameters such as dynamic pressure and proton density influence Joule heating production rate significantly. Meanwhile, the relentlessness of the other parameters such as IMFBt and solar wind bulk speed show that they have poor impact on Joule heating.
Study of Interplanetary and Geomagnetic Response of Filament Associated CMEs
Authors: Dave Kunjal , Mishra Wageesh , Srivastava Nandita , Jadhav R. M.
Published: November 2018

It has been established that Coronal Mass Ejections (CMEs) may have significant impact on terrestrial magnetic field and lead to space weather events. In the present study, we selected several CMEs which are associated with filament eruptions on the Sun. We attempt to identify the presence of filament material within ICME at 1AU. We discuss how different ICMEs associated with filaments lead to moderate or major geomagnetic activity on their arrival at the Earth. Our study also highlights the difficulties in identifying the filament material at 1AU within isolated and in interacting CMEs.
Two primitive trematopid amphibians (Temnospondyli, Dissorophoidea) from the Upper Carboniferous of the Czech Republic
Authors: MILNER Andrew R.
Published: November 2018

Specimens of trematopid amphibians from the Asturian (Upper Carboniferous) of Nýřany, Czech Republic, are redescribed as two taxa, namelyMordex calliprepesSteen andMattauschia(gen. nov)laticepsFritsch.Mordex calliprepesis represented by a single post-metamorphic specimen and has the diagnostic trematopid characters of the nasal region.Mattauschia laticepsis represented by one adult partial skull and mandible plus some fragments and two small post-metamorphic specimens including the species name-bearer. It has the trematopid-type modified lacrimal and a large but oval naris and appears to be the most primitive trematopid yet described. The stratigraphically sequential large trematopidsMattauschia,Fedexia,EcolsoniaandAchelomashow progressive acquisition of the derived features that characterise the terminal formAcheloma.

Mordexhas a combination of primitive and derived characters and its position within the family is less clear. The many ‘branchiosaurs' in the Nýřany assemblage include specimens that could be larvae of bothMordexandMattauschiabut certain attribution is not possible and they are assigned to Olsoniformesincertae sedis.MordexandMattauschiaappear to be terrestrial exotic elements in the Nýřany tetrapod assemblage, but with possible larvae in the lake assemblage. Representatives of at least four Palaeozoic dissorophoid families were present in late Middle Pennsylvanian/Asturian strata implying diversification of the Dissorophoidea prior to this time.
Roman Religion in the Classroom: Spotlight on the Mysteries of Mithras
Authors: Hussein Ersin
Published: November 2018

There appears to be no ‘tail end’ in sight for academic enquiry into the worship of Mithras in the Roman Empire. Interest in this ancient religion, and its popularity and longevity as a topic of study, has no doubt been secured by its status as an elective cult and by its rich, and at times controversial, surviving evidence, which is predominantly archaeological in nature and packed with astrological symbolism. No written documentation representing a theological canon, which might outline its origins, traditions and customs, has ever been discovered. Furthermore, the few surviving literary accounts present snapshots of the cult and are written by ‘outsiders’. Though strongly associated with Zoroastrianism, an ancient religion widely worshipped across Asia Minor and Persia, the exact origins of Mithras, his identity as a god, and the development of his worship remain unclear. With the reopening of the London Mithraeum last year the spotlight has once again been cast on the spread and impact of the cult in Roman Britain. This article accompanies pieces in this volume ofJCTand the next which focus on this sacred and once exclusive space. Organised in two sections, part one will begin with a brief introduction to the history of scholarship, focusing mostly on some methodological and theoretical developments in recent studies. Following this, attention will be paid to the nature of the evidence for the mysteries of Mithras and popular interpretations drawn from it. Part two will discuss methods for bringing this rich material to life in the classroom and reflect on pedagogical issues relating to teaching Mithraism as part of the Latin GCSE syllabus. The tried and tested exercises presented in this part of the article and are applicable to a variety of classroom settings, sizes and age groups.
An Interschool Partnership in Wakefield
Authors: Dean David
Published: November 2018

Prompted by reading about projects elsewhere in the country – Birmingham, Liverpool, London for instance – I am writing to share my experience of working with a project to offer Latin to pupils in an 11 – 16 Catholic Academy in Wakefield, West Yorkshire. It is an unusual arrangement, but one which offers some ideas about what might be achieved elsewhere.
The R/renaissance(s), Humanists And Classics
Authors: Moran Jerome
Published: November 2018

First, where does the Renaissance fit in chronologically with other periods of the past? There is general agreement that the Renaissance should be dated from 1300 to 1650, though some believe that a more accurate and meaningful starting date would be 1400/1450. The Middle Ages is generally taken to be the period 500 to 1500 (a considerable overlap with the Renaissance then), though some would date the start to the Arab conquests beginning about 640. A period of the Middle Ages is traditionally known as the ‘Dark Age(s)’. Those who believe that the term is still appropriate (many reject it because of its negative connotations) date this from 500/600 to 800, though some extend it to 1000. (See later for the origins of the terms ‘Renaissance’, ‘Middle Ages’ and ‘Dark Age(s)’.)
The Virtue of Variety: Opening the Doors to Wider Pedagogical Practices in UK Schools and Universities
Authors: Hunt Steven , Letchford Clive , Lloyd Mair , Manning Laura , Plummer Rachel
Published: November 2018

The Council of University Classics Departments surveys of 1995 (CUCD, 1995) and 2012 (CUCD, 2012) demonstrated a restricted set of approaches to Latin teaching in UK universities with little evidence of activity outside grammar-translation and graded reading. Despite this, in the 2012 survey, some United Kingdom university tutors made claims for the benefits of experiencing more varied pedagogy, including communicative Latin, in their own previous study and in Summer School Immersion events (Lloyd, 2016a). In schools, a number of challenges continue to provide motivation to move away from current norms of provision (Forrest, 1996; Lister, 2007; Hunt, 2016). Meanwhile, in America, changes in curriculum and methods are being proposed and implemented to meet the challenges of falling enrolment on Latin and other Classics courses.
Validation of the Bipolar Spectrum Diagnostic Scale in Mexican Psychiatric Patients
Authors: Sánchez de la Cruz Juan Pablo , Fresán Ana , González Moralez Diana Laura , López-Narváez María Lilia , Tovilla-Zarate Carlos Alfonso , Pool-García Sherezada , Juárez-Rojop Isela , Hernández-Díaz Yazmín , González-Castro Thelma Beatriz , Vera-Campos María de Lourdes , Velázquez-Sánchez Patricia
Published: November 2018

The Bipolar Spectrum Diagnostic Scale (BSDS) is widely validated and used as a screening tool for bipolar disorder. However, there is no BSDS validated version for its use in Mexican population. The aim of the present study was to examine the BSDS diagnostic capacity, and to evaluate its criterion validity and internal consistency for its use in Mexican psychiatric patients. We recruited 200 patients who attended the psychiatric outpatient service of a Mental Health Specialized Hospital and were screened for bipolar disorder using BSDS. To determine the cut-off point, sensitivity and specificity, we used the SCID–I diagnosis as the gold standard in 100 participants with bipolar disorder and 100 with major depression. Internal consistency according to Cronbach’s coefficient alpha was .81. The area under ROC curve for the overall discriminability of BSDS against the criterion of SCID–I for bipolar disorder was .90. Finally, a cut-off value of 12 reached the most stable sensitivity and specificity, with predictive powers higher than .80. In conclusion, the properties of the scale including internal consistency, sensitivity and specificity, make of BSDS a valuable instrument for screening bipolar disorder in Mexican psychiatric population.
Black Medic (Medicago lupulina) Emergence and Emergence Predictors within Florida Strawberry Fields
Authors: Sharpe Shaun M. , Boyd Nathan S.
Published: November 2018

Black medic (Medicago lupulinaL.) infestations are a concern for Florida strawberry [Fragaria×ananassa(Weston) Duchense ex Rozier (pro sp.) [chiloensis×virginiana] producers. Current control techniques rely on hand weeding or clopyralid application. Coordinating POST control measures with emergence timing can reduce crop competition duration and increase control. The objective of this study was to evaluateM. lupulinaemergence in response to burial depth and temperature and to modelM. lupulinacumulative field emergence under subtropical Florida conditions using growing degree days (GDDs) as a predictor. Two studies were in controlled environments and looked at factors affecting emergence, burial depth, and temperature. A third experiment was a 2-yr emergence study conducted on four commercial strawberry fields in Hillsborough County, FL. Emergence was modeled as a function of accumulated standard and restricted daily GDD accounting, based onM. lupulinadormancy and germination. In Experiment 1,M. lupulinaonly emerged when seed was deposited on the surface. In Experiment 2, there was three-way interaction among temperature, burial depth, and measurement timing (P<0.0001).Medicago lupulinaemerged from as deep as 2 cm at a temperature range between 15 and 25 C.Medicago lupulinafield emergence was not consistent between years, although emergence was consistent across four sites in year 1, with 0 emergence in year 2. Dormancy and germination restrictions increased calibration and validation model fit and reduced GDD inflation, making models usable between years.Medicago lupulinaprimarily emerged during crop establishment, between mid-November and late-December, which corresponds to an ideal timing for control measures before the harvest period.
Language Heightens the Political Salience of Ethnic Divisions
Authors: Pérez Efrén O. , Tavits Margit
Published: November 2018

What makes people take ethnic divisions into account when judging politics? We consider here the possible effect of language. We hypothesize that speaking a minority tongue primes ethnic divisions, leading people to interpret politics more heavily through this prism. In two survey experiments with bilingual adults, we demonstrate that subjects assigned to interview in a minority language are indeed more likely to evaluate politics based on ethnic considerations: they rank ethnic relations as a more important political issue and they are more likely to correctly identify the anti-minority party in their political system. These results suggest that people may think about politics differently depending on the language they use.
Stawarz Receives 2018 Basu United States Early Career Award for Research Excellence in Sun–Earth Systems Science
Authors:   AGU
Published: November 2018

Julia Stawarz will receive the 2018 Basu United States Early Career Award for Research Excellence in Sun–Earth Systems Science at AGU’s Fall Meeting 2018, to be held 10–14 December in Washington, D. C. This award is given annually to “one early career scientist (no more than 3 years post-degree) from the United States in recognition of significant work that shows the focus and promise of making outstanding contributions to research in Sun–Earth systems science that further the understanding of both plasma physical processes and their applications for the benefit of society.”
Energetics of the Southern Ocean Mode
Authors: Jüling A. , Viebahn J. P. , Drijfhout S. S. , Dijkstra H. A.
Published: November 2018

Recently, multidecadal variability in the Southern Ocean has been found in a strongly eddying global ocean circulation model. In this paper, we study the Lorenz energy cycle of this so‐called Southern Ocean Mode (SOM). The Lorenz energy cycle analysis provides details on the energy pathways associated with the SOM. It shows that ocean eddies and the baroclinic energy pathway together with variations in the kinetic energy input by the wind are crucial aspects of the variability. It is also shown how convective mixing, which is induced by the SOM in particular in the Weddell Gyre, is responsible for the large‐scale multidecadal variability in Antarctic Bottom Water and Atlantic Meridional Overturning Circulation.
Molecular diagnostics in medical mycology
Authors: Wickes Brian L. , Wiederhold Nathan P.
Published: November 2018

Diagnosing fungal infections poses a number of unique problems, including a decline in expertise needed for identifying fungi, and a reduced number of instruments and assays specific for fungal identification compared to that of bacteria and viruses.These problems are exacerbated by the fact that patients with fungal infections are often immunosuppressed, which predisposes to infections from both commonly and rarely seen fungi. In this review, we discuss current and future molecular technologies used for fungal identification, and some of the problems associated with development and implementation of these technologies in today’s clinical microbiology laboratories.
Deciphering deterministic factors of predation pressures in deep time
Authors: Ishikawa Makiko , Kase Tomoki , Tsutsui Hidekazu
Published: November 2018

Predation pressure occurs as a result of predation frequency and prey vulnerability. Although quantifying these factors individually is essential to precisely understand predation effects on evolution, they have been generally less accessible. Here, using a modified form of Poisson function, we quantified the frequencies and vulnerabilities, as well as the resulting predation pressures, concerning the shell drillers versus prey interactions from the Eocene and Miocene periods. Our analysis quantitatively revealed that low-spired shells tend to show increased vulnerability except for two planispiral species that exhibit an unexpectedly low vulnerability. We then identified septal structures within the two species that resemble those in nautiloids and ammonoids but which provided a defensive role against the predators, enhancing the mean lifetime by approximately 20%. The current approach enables us to quantitatively trace how predation frequency and prey vulnerability have interacted, been transformed spatio-temporally, and been a driving force of evolution at geological time scales.
Felis catus papillomavirus type-2 E6 binds to E6AP, promotes E6AP/p53 binding and enhances p53 proteasomal degradation
Authors: Altamura Gennaro , Power Karen , Martano Manuela , degli Uberti Barbara , Galiero Giorgio , De Luca Giovanna , Maiolino Paola , Borzacchiello Giuseppe
Published: November 2018

E6 from high risk human papillomaviruses (HR HPVs) promotes ubiquitination and degradation of p53 tumour suppressor by mediating its binding to ubiquitin ligase E6AP in a ternary complex, contributing to cell transformation in cervical cancer. We have previously shown that Felis catus papillomavirus type −2 (FcaPV-2) E6 is expressed in feline squamous cell carcinoma (SCC) and displays the ability to bind p53 and decrease its protein levels in transfected CRFK cells. However, the mechanism of p53 downregulation has not yet been characterized. Here we show that FcaPV-2 E6 bound to E6AP, which in turn was bound by p53 exclusively in cells expressing the viral oncoprotein (CRFKE6). Furthermore, p53 was highly poly-ubiquitinated and underwent accumulation upon E6AP gene knockdown in CRFKE6. Half-life experiments and proteasome inhibition treatments indicated that down-regulation of p53 protein in CRFKE6 was due to accelerated proteasomal degradation. E6AP/p53 binding was also demonstrated in two feline SCC cell lines expressing FcaPV-2 E6, where p53 protein levels and poly-ubiquitination degree were proportional to E6 mRNA levels. The data obtained in both artificial and spontaneous in vitro models suggest that FcaPV-2 E6 degrades p53 through a molecular mechanism similar to HR HPVs, possibly contributing to the development of feline SCC.