bluuebunny/crossref_metadata_2025_split huggingface dataset:
An open trial of meaning-centered grief therapy: Rationale and preliminary evaluation
Authors: Lichtenthal Wendy G. , Catarozoli Corinne , Masterson Melissa , Slivjak Elizabeth , Schofield Elizabeth , Roberts Kailey E. , Neimeyer Robert A. , Wiener Lori , Prigerson Holly G. , Kissane David W. , Li Yuelin , Breitbart William 
Published: January 2019

AbstractObjectiveTo determine the preliminary feasibility, acceptability, and effects of Meaning-Centered Grief Therapy (MCGT) for parents who lost a child to cancer.MethodParents who lost a child to cancer and who were between six months and six years after loss and reporting elevated levels of prolonged grief were enrolled in open trials of MCGT, a manualized, one-on-one cognitive-behavioral-existential intervention that used psychoeducation, experiential exercises, and structured discussion to explore themes related to meaning, identity, purpose, and legacy. Parents completed 16 weekly sessions, 60–90 minutes in length, either in person or through videoconferencing. Parents were administered measures of prolonged grief disorder symptoms, meaning in life, and other assessments of psychological adjustment preintervention, mid-intervention, postintervention, and at three months postintervention. Descriptive data from both the in-person and videoconferencing open trial were pooled.ResultEight of 11 (72%) enrolled parents started the MCGT intervention, and six of eight (75%) participants completed all 16 sessions. Participants provided positive feedback about MCGT. Results showed postintervention longitudinal improvements in prolonged grief (d = 1.70), sense of meaning (d = 2.11), depression (d = 0.84), hopelessness (d = 1.01), continuing bonds with their child (d = 1.26), posttraumatic growth (ds = 0.29–1.33), positive affect (d = 0.99), and various health-related quality of life domains (d = 0.46–0.71). Most treatment gains were either maintained or increased at the three-month follow-up assessment.Significance of resultsOverall, preliminary data suggest that this 16-session, manualized cognitive-behavioral-existential intervention is feasible, acceptable, and associated with transdiagnostic improvements in psychological functioning among parents who have lost a child to cancer. Future research should examine MCGT with a larger sample in a randomized controlled trial.
Postgraduate palliative care education for all healthcare providers in Europe: Results from an EAPC survey
Authors: Paal Piret , Brandstötter Cornelia , Lorenzl Stefan , Larkin Philip , Elsner Frank 
Published: January 2019

AbstractObjectivePalliative care training at basic, intermediate, and specialist levels, recommended by the World Health Organization (WHO), is challenging to access in resource-poor countries and regions. Providing support in this regard would seem a moral imperative for all countries with established palliative care education systems and a strong resource base. In collaboration with WHO European Office and European Association for Palliative Care, this paper looks into the educational requirements in palliative care at postgraduate level within Europe.MethodA survey was specifically designed to gather opinions and comments on elements of palliative care education from European experts. Participants were invited to assess the European Association for Palliative Care core competencies on a five-item scale and to define essential learning goals. Survey data were statistically analyzed using IBM SPSS Statistics Software. Qualitative data were thematically analyzed.ResultA total of 195 data sets were recorded; 82 were completed fully. The statistical analysis revealed a high agreement regarding the key elements of palliative care education. The thematic analysis indicated that at postgraduate level all healthcare providers need to (1) comprehend the palliative care philosophy, (2) be able to demonstrate the complex symptom assessment and management competencies, (3) be able to design care plans based on patients and families wishes integrating multiprofessional and interdisciplinary approaches, and (4) be able to listen and self-reflect.Significance of resultsAccording to the WHO, inadequate skills and capacities of healthcare workers are one of the four barriers hindering the access to palliative care. This paper contains a new and comprehensive list of learning goals essential for multidisciplinary postgraduate palliative care education. Besides highlighting the relevant competencies, the article provides best-practice toolboxes with teaching and assessment methods. The article comments on the WHO's palliative care definition and underpins the importance of the role of the education in knowledge development and skills acquisition.
Diversity and conservation priorities of crop wild relatives in Mexico
Authors: Contreras-Toledo Aremi R. , Cortés-Cruz Moisés , Costich Denise E. , Rico-Arce Ma. de Lourdes , Magos Brehm Joana , Maxted Nigel 
Published: January 2019

AbstractCrop wild relatives (CWR) are valuable resources for crop breeding due to their close genetic relationship to the cultivated plants and their wide genetic variation, allowing the introgression of desirable traits into the crops, such as resistance to plant pests and diseases or adaptability to climate change. Mexico is a centre of agrobiodiversity, including CWR, but climate change, and other factors, are contributing to the loss of important Mexican CWR genetic diversity. Thein situandex situconservation status of Mexican priority CWR were assessed through a gap analysis as part of a national CWR conservation strategy for Mexico, to ensure the long-term preservation and improve the availability of these genetic resources. A set of 310 priority CWR taxa, previously identified as part of the national CWR inventory for Mexico, were analysed. Species distribution modelling and ecogeographic diversity analyses were used to detect gaps inin situandex situconservation at taxon and ecogeographic levels. Priority target sites were identified throughout the country for complementaryin situandex situconservation of these taxa. The results obtained allow us to make recommendations for immediate conservation actions, thus helping to mitigate the threats to Mexican agrobiodiversity and enhance both national and global food security.
Crop wild relative diversity and conservation planning in two isolated oceanic islands of a biodiversity hotspot (Mauritius and Rodrigues)
Authors: Bissessur P. , Baider C. , Boodia N. , Badaloo M.G.H. , Bégué J.A. , Jhumka Z. , Meunier A. , Mungroo Y. , Gopal V. , Kell S.P. , Magos Brehm J. , Thormann I. , Jaufeerally-Fakim Y. 
Published: January 2019

AbstractThe rising need for crop diversification to mitigate the impacts of climate change on food security urges the exploration of crop wild relatives (CWR) as potential genetic resources for crop improvement. This study aimed at assessing the diversity of CWR of the Indian Ocean islands of Mauritius and Rodrigues and proposing cost-effective conservation measures for their sustainable use. A comprehensive list of the native species was collated from The Mauritius Herbarium and published literature. Each species was assessed for the economic value of its related crop, utilization potential for crop improvement, relative distribution, occurrence status and Red List conservation status, using a standard scoring method for prioritization. The occurrence data of the priority species were collected, verified, geo-referenced and mapped. A total of 43 crop-related species were identified for both islands and 21 species were prioritized for active conservation. The CWR diversity hotspots in Mauritius included Mondrain, followed by Florin and Le Pouce Mountain. Although a wide diversity of CWR has been recorded on both islands, most do not relate to major economic crops in use, therefore only a few species may be gene donors to economic crops at the regional and global level. For example, coffee, a major global beverage crop, has three wild relatives on Mauritius, which could potentially be of interest for future predictive characterization.
Quantifying Tropical Cyclone's Effect on the Biogeochemical Processes Using Profiling Float Observations in the Bay of Bengal
Authors: Girishkumar M. S. , Thangaprakash V. P. , Udaya Bhaskar T. V. S. , Suprit K. , Sureshkumar N. , Baliarsingh S. K. , Jofia J. , Pant Vimlesh , Vishnu S. , George G. , Abhilash K. R. , Shivaprasad S. 
Published: January 2019

AbstractPhysical and biogeochemical observations from an autonomous profiling Argo float in the Bay of Bengal show significant changes in upper ocean structure during the passage of tropical cyclone (TC) Hudhud (7–14 October 2014). TC Hudhud mixed water from a depth of about 50 m into the surface layers through a combination of upwelling and turbulent mixing. Mixing was extended into the depth of nutricline, the oxycline, and the subsurface‐chlorophyll‐maximum and thus had a strong impact on the biogeochemistry of the upper ocean. Before the storm, the near‐surface layer was nutrient depleted and was thus oligotrophic with the chlorophyll‐a concentration of less than 0.15 mg/m3. Storm mixing initially increased the chlorophyll by 1.4 mg/m3, increased the surface nitrate concentration to about 6.6 μM/kg, and decreased the subsurface dissolved oxygen (30–35 m) to 31% of saturation (140 μM). These conditions were favorable for phytoplankton growth resulting in an estimated increase in primary productivity averaging 1.5 g C·m−2·day−1 over 15 days. During this bloom, chlorophyll‐a increased by 3.6 mg/m3, and dissolved oxygen increased from 111% to 123% of saturation. Similar observations during TC Vardah (6–12 December 2016) showed much less mixing. Our analysis suggests that relatively small (high) translation speed and the presence of cold (warm) core eddy leads to strong (weak) oceanic response during TC Hudhud (TC Vardah). Thus, although cyclones can cause strong biogeochemical responses in the Bay of Bengal, the strength of response depends on the properties of the storm and the prevailing upper ocean structure such as the presence of mesoscale eddies.
Detection of Fossil and Biogenic Methane at Regional Scales Using Atmospheric Radiocarbon
Authors: Graven H. , Hocking T. , Zazzeri G. 
Published: January 2019

AbstractRegional emissions of methane and their attribution to a variety of sources presently have large uncertainties. Measurements of radiocarbon (14C) in methane (CH4) may provide a method for identifying regional CH4 emissions from fossil versus biogenic sources because adding 14C‐free fossil carbon reduces the 14C/C ratio (Δ14CH4) in atmospheric CH4 much more than biogenic carbon does. We describe an approach for estimating fossil and biogenic CH4 at regional scales using atmospheric Δ14CH4 observations. As a case study to demonstrate expected Δ14CH4 and Δ14CH4‐CH4 relationships, we simulate and compare Δ14CH4 at a network of sites in California using two gridded CH4 emissions estimates (Emissions Database for Global Atmospheric Research, EDGAR, and Gridded Environmental Protection Agency, GEPA) and the CarbonTracker‐Lagrange model for 2014, and for 2030 under business‐as‐usual and mitigation scenarios. The fossil fraction of CH4 (F) is closely linked with the simulated Δ14CH4‐CH4 slope and differences of 2–21% in median F are found for EDGAR versus GEPA in 2014, and 7–10% for business‐as‐usual and mitigation scenarios in 2030. Differences of 10% in F for >200 ppb of added CH4 produce differences of >10‰ in Δ14CH4, which are likely detectable from regular observations. Nuclear power plant 14CH4 emissions generally have small simulated median influences on Δ14CH4 (0–7‰), but under certain atmospheric conditions they can be much stronger (>30‰) suggesting they must be considered in applications of Δ14CH4 in California. This study suggests that atmospheric Δ14CH4 measurements could provide powerful constraints on regional CH4 emissions, complementary to other monitoring techniques.
Analytical Chorus Wave Model Derived from Van Allen Probe Observations
Authors: Wang Dedong , Shprits Yuri Y. , Zhelavskaya Irina S. , Agapitov Oleksiy V. , Drozdov Alexander Y. , Aseev Nikita A. 
Published: January 2019

AbstractChorus waves play an important role in the dynamic evolution of energetic electrons in the Earth's radiation belts and ring current. Using more than 5 years of Van Allen Probe data, we developed a new analytical model for upper‐band chorus (UBC; 0.5fce < f < fce) and lower‐band chorus (LBC; 0.05fce < f < 0.5fce) waves, where fce is the equatorial electron gyrofrequency. By applying polynomial fits to chorus wave root mean square amplitudes, we developed regression models for LBC and UBC as a function of geomagnetic activity (Kp), L, magnetic latitude (λ), and magnetic local time (MLT). Dependence on Kp is separated from the dependence on λ, L, and MLT as Kp‐scaling law to simplify the calculation of diffusion coefficients and inclusion into particle tracing codes. Frequency models for UBC and LBC are also developed, which depends on MLT and magnetic latitude. This empirical model is valid in all MLTs, magnetic latitude up to 20°, Kp ≤ 6, L‐shell range from 3.5 to 6 for LBC and from 4 to 6 for UBC. The dependence of root mean square amplitudes on L are different for different bands, which implies different energy sources for different wave bands. This analytical chorus wave model is convenient for inclusion in quasi‐linear diffusion calculations of electron scattering rates and particle simulations in the inner magnetosphere, especially for the newly developed four‐dimensional codes, which require significantly improved wave parameterizations.
Impact of 3‐D Radiation‐Topography Interactions on Surface Temperature and Energy Budget Over the Tibetan Plateau in Winter
Authors: Lee Wei‐Liang , Liou Kuo‐Nan , Wang Chia‐chi , Gu Yu , Hsu Huang‐Hsiung , Li Jui‐Lin F. 
Published: January 2019

AbstractWe incorporate a parameterization to quantify the effect of three‐dimensional (3‐D) radiation‐topography interactions on the solar flux absorbed by the surfaces, including multiple reflections between surfaces and differences in sunward/shaded slopes, in the Community Climate System Model version 4 (CCSM4). A sensitivity experiment is carried out using CCSM4 with the prescribed sea surface temperature for year 2000 to investigate its impact on energy budget and surface temperature over the Tibetan Plateau (TP). The results show that the topographic effect reduces the upward surface shortwave flux and, at the same time, enhance snowmelt rate over the central and southern parts of TP. Comparing to observations and the ensemble of Coupled Model Intercomparison Project Phase 5 (CMIP5), we found that CMIP5 models have a strong cold bias of 3.9 K over TP, partially induced by the strong reflection of shortwave fluxes. We show that the inclusion of topographic effect reduces the substantial biases of upward shortwave fluxes and surface air temperatures over TP by 13% in the CCSM4 model.
Quantifying the Storm Time Thermospheric Neutral Density Variations Using Model and Observations
Authors: Kalafatoglu Eyiguler E. Ceren , Shim J. S. , Kuznetsova M. M. , Kaymaz Z. , Bowman B. R. , Codrescu M. V. , Solomon S. C. , Fuller‐Rowell T. J. , Ridley A. J. , Mehta P. M. , Sutton E. K. 
Published: January 2019

AbstractAccurate determination of thermospheric neutral density holds crucial importance for satellite drag calculations. The problem is twofold and involves the correct estimation of the quiet time climatology and storm time variations. In this work, neutral density estimations from two empirical and three physics‐based models of the ionosphere‐thermosphere are compared with the neutral densities along the Challenging Micro‐Satellite Payload satellite track for six geomagnetic storms. Storm time variations are extracted from neutral density by (1) subtracting the mean difference between model and observation (bias), (2) setting climatological variations to zero, and (3) multiplying model data with the quiet time ratio between the model and observation. Several metrics are employed to evaluate the model performances. We find that the removal of bias or climatology reveals actual performance of the model in simulating the storm time variations. When bias is removed, depending on event and model, storm time errors in neutral density can decrease by an amount of 113% or can increase by an amount of 12% with respect to error in models with quiet time bias. It is shown that using only average and maximum values of neutral density to determine the model performances can be misleading since a model can estimate the averages fairly well but may not capture the maximum value or vice versa. Since each of the metrics used for determining model performances provides different aspects of the error, among these, we suggest employing mean absolute error, prediction efficiency, and normalized root mean square error together as a standard set of metrics for the neutral density.
2.4 GHz dual polarised monostatic antenna with simple two‐tap RF self‐interference cancellation (RF‐SIC) circuitry
Authors: Nawaz H. , Gürbüz Ö. , Tekin I. 
Published: January 2019

This Letter presents a dual polarised monostatic patch antenna with a simple two‐tap RF/analogue domain‐based self‐interference cancellation (SIC) (RF‐SIC) circuitry to achieve high interport isolation in a comparatively wider bandwidth for a 2.4 GHz in‐band full duplex wireless transceiver. A brief mathematical description for the deployed two‐tap RF‐SIC is also presented to provide insight into self‐interference (SI) suppression in a comparatively wider bandwidth. The implemented antenna with a two‐tap RF‐SIC circuitry achieves around 80 dB Tx–Rx isolation for a 20 MHz bandwidth in addition to more than 90 dB peak isolation for measurements performed in a lab environment where SI may result from the nearby placed objects. The deployed two‐tap RF‐SIC circuit can be tuned to effectively cancel out SI caused by reflections of the radio signal from the surroundings. Moreover, an 80 dB isolation bandwidth can be tuned within a 10 dB return loss bandwidth of the implemented dual polarised antenna.
Cascaded Rotman lens fed circular array
Authors: Chepala A. , Fusco V. 
Published: January 2019

A single Rotman lens fed circular array requires phase shifters to beam steer, whereas a two‐cascaded Rotman lens fed circular array can beam form and beam steer by simply exciting a single Rotman lens beam port. In this Letter, the authors show how cascaded Rotman lenses feeding a circular array can use this property in order to beam steer/shape and perform retrodirective action. Experimental validation at 9.3 GHz is given.
Dynamic formation mechanism of water droplet and induced surface discharges on silicone rubber composites
Authors: Liu Yong , Wu Yafeng , Du Boxue 
Published: January 2019

Wettability has become one of the most important factors influencing power equipment insulation system in coastal power grid, which can seriously threaten the safety of power grid. This paper aimed at numerical simulation and experimental investigation on dynamic formation mechanism of water droplet and induced surface discharges on silicone rubber composites under different AC voltages, considering the factors of surface tension and droplet volume. Obtained results reveal that the spreading coefficient increases with increasing the electric field intensity from 1 to 5 kV/cm and with increasing the droplet volume from 10 to 50 µL. The spreading coefficient shows a decreasing tendency when the surface tension increases from 29.3 to 61.0 mN/m. Moreover, the maximum of surface electric field shows an increasing tendency under the condition of increasing both the droplet volume and the surface tension. On the basis of the physical model of droplet deformation, the electric field force and the surface tension play a significant role in the process of droplet deformation. Meanwhile, the experimental results are consistent with the simulation analysis, reflecting that the droplet deformation and the induced surface discharges mainly depend on two parameters: the droplet volume and the magnitude of applied voltage.
Multiwavelength campaign on Mrk 509
Authors: Kriss G. A. , Arav N. , Edmonds D. , Ely J. , Kaastra J. S. , Bianchi S. , Cappi M. , Costantini E. , Ebrero J. , Mehdipour M. , Paltani S. , Petrucci P. , Ponti G. 
Published: January 2019

Aims. To elucidate the location, physical conditions, mass outflow rate, and kinetic luminosity of the outflow from the active nucleus of the Seyfert 1 galaxy Mrk 509, we used coordinated UV and X-ray spectral observations in 2012 to follow up our lengthier campaign conducted in 2009.
Methods. We observed Mrk 509 with the Cosmic Origins Spectrograph (COS) on the Hubble Space Telescope (HST) on 2012-09-03 and 2012-10-11 coordinated with X-ray observations using the High Energy Transmission Grating on the Chandra X-ray Observatory. Our far-ultraviolet spectra used grating G140L on COS to cover wavelengths from 920–2000 Å at a resolving power of ∼2000, and gratings G130M and G160M to cover 1160–1750 Å at a resolving power of ∼15, 000.
Results. We detect variability in the blueshifted UV absorption lines on timescales spanning 3–12 years. The inferred densities in the absorbing gas are greater than log n cm−3 ∼ 3. For ionization parameters ranging over log U = −1.5 to −0.2, we constrain the distances of the absorbers to be closer than 220 pc to the active nucleus.
Conclusions. The impact on the host galaxy appears to be confined to the nuclear region.
HADES RV program with HARPS-N at the TNG
Authors: Affer L. , Damasso M. , Micela G. , Poretti E. , Scandariato G. , Maldonado J. , Lanza A. F. , Covino E. , Garrido Rubio A. , González Hernández J. I. , Gratton R. , Leto G. , Maggio A. , Perger M. , Sozzetti A. , Suárez Mascareño A. , Bonomo A. S. , Borsa F. , Claudi R. , Cosentino R. , Desidera S. , Giacobbe P. , Molinari E. , Pedani M. , Pinamonti M. , Rebolo R. , Ribas I. , Toledo-Padrón B. 
Published: January 2019

Aims.The HArps-n red Dwarf Exoplanet Survey (HADES) is providing a major contribution to the widening of the current statistics of low-mass planets, through the in-depth analysis of precise radial-velocity (RV) measurements in a narrow range of spectral sub-types. Using the HARPS-N spectrograph we reach the precision needed to detect small planets with a few earth masses. Our survey is mainly focused on the M-dwarf population of the northern hemisphere.Methods.As part of that program, we obtained RV measurements of Gl 686, an M1 dwarf atd= 8.2 pc. These measurements show a dispersion much in excess of their internal errors. The analysis of data obtained within an intensive observing campaign demonstrates that the excess dispersion is due to a coherent signal with a period of 15.53 d. Almost simultaneous photometric observations were carried out within the APACHE and EXORAP programs to characterize the stellar activity and to distinguish periodic variations related to activity from signals due to the presence of planetary companions, complemented also with ASAS photometric data. We used a Bayesian framework to estimate the orbital parameters and the planet minimum mass, and to properly treat the activity noise. We took advantage of the available RV measurements for this target from other observing campaigns. The analysis of the RV composite time series from the HIRES, HARPS, and HARPS-N spectrographs, consisting of 198 measurements taken over 20 yr, enabled us to address the nature of periodic signals and also to characterize stellar physical parameters (mass, temperature, and rotation).Results.We report the discovery of a super-Earth orbiting at a distance of 0.092 AU from the host star Gl 686. The planet has a minimum mass of 7.1 ± 0.9M⊕and an orbital period of 15.532 ± 0.002 d. The analysis of the activity indexes, of the correlated noise through a Gaussian process framework, and of the photometry provides an estimate of the stellar rotation period at 37 d, and highlights the variability of the spot configuration during the long timespan covering 20 yr. The observed periodicities around 2000 d likely point to the existence of an activity cycle.