bluuebunny/crossref_metadata_2025 huggingface dataset:
Comprehensive Evaluation of the Sustainable Development of Power Grid Enterprises Based on the Model of Fuzzy Group Ideal Point Method and Combination Weighting Method with Improved Group Order Relation Method and Entropy Weight Method
Authors: Dai Shuyu , Niu Dongxiao
Published: October 2017

As an important implementing body of the national energy strategy, grid enterprises bear the important responsibility of optimizing the allocation of energy resources and serving the economic and social development, and their levels of sustainable development have a direct impact on the national economy and social life. In this paper, the model of fuzzy group ideal point method and combination weighting method with improved group order relation method and entropy weight method is proposed to evaluate the sustainable development of power grid enterprises. Firstly, on the basis of consulting a large amount of literature, the important criteria of the comprehensive evaluation of the sustainable development of power grid enterprises are preliminarily selected. The opinions of the industry experts are consulted and fed back for many rounds through the Delphi method and the evaluation criteria system for sustainable development of power grid enterprises is determined, then doing the consistent and non dimensional processing of the evaluation criteria. After that, based on the basic order relation method, the weights of each expert judgment matrix are synthesized to construct the compound matter elements. By using matter element analysis, the subjective weights of the criteria are obtained. And entropy weight method is used to determine the objective weights of the preprocessed criteria. Then, combining the subjective and objective information with the combination weighting method based on the subjective and objective weighted attribute value consistency, a more comprehensive, reasonable and accurate combination weight is calculated. Finally, based on the traditional TOPSIS method, the triangular fuzzy numbers are introduced to better realize the scientific processing of the data information which is difficult to quantify, and the queuing indication value of each object and the ranking result are obtained. A numerical example is taken to prove that the model of fuzzy group ideal point method and combination weighting method with improved group order relation method and entropy weight method is feasible and effective for evaluating the sustainable development of power grid enterprises.
NFC-Based Traceability in the Food Chain
Authors: Pigini Danny , Conti Massimo
Published: October 2017

In recent years, many events related to food and public health, such as bovine spongiform encephalopathy (BSE, commonly known as mad cow disease), dioxin, bird flu and swine flu, brought the issue of food security to the center of international attention. Many countries established strict rules to ensure the food traceability “from farm to fork” to meet the demand of consumer safety and to ensure public health. Consequently, the concepts of controlled supply chain, brand of quality and traceability of food products have had a strong evolution. Companies in the food production sector must evolve and change their organizational and management chain to satisfy increasingly stringent government rules and to respond to the requirements of the market. From this point of view, NFC (Near Field Communication) has all the requirements to become the main technology for traceability in the various food sectors. This paper proposes a solution to gather information throughout the entire food supply chain and bring it directly to the consumer. The architecture consists of a complex identification system based on NFC tags, which cumulates data during all phases of the production process. The aim of this work is to keep track of the information generated during food processing, not only for traceability purposes, but also for enhancing and optimizing production. The data generated by the traceability system are collected in a cloud database through apps on Android smartphones. The information is accessible by the consumers through a public Android application. The pork supply chain has been used as an application example of the proposed methodology.
Mapping Fine Spatial Resolution Precipitation from TRMM Precipitation Datasets Using an Ensemble Learning Method and MODIS Optical Products in China
Authors: Zhao Xiaodan , Jing Wenlong , Zhang Pengyan
Published: October 2017

Precipitation data are important for the fields of hydrology and meteorology, and are fundamental for ecosystem monitoring and climate change research. Satellite-based precipitation products are already able to provide high temporal resolution precipitation information at a global level. However, the coarse spatial resolution has restricted their use in regional level studies. In this study, monthly fine spatial resolution land precipitation data in China was obtained by downscaling the TRMM 3B43 V7 monthly precipitation products. The downscaling model was constructed based on the ensemble learning method called random forest (RF). In addition to the RF model, the classification and regression tree (CART) model was also used to downscale the precipitation data for the purpose of comparison. The results were validated with in situ measurements. Results showed that the RF model outperformed the CART model. The downscaled precipitation data were strongly correlated with the in situ measurements. The downscaling method was applied to mapping fine spatial resolution precipitation over all of China, and is valuable for developing high spatial resolution precipitation products for studies on hydrology, meteorology, and climate science.
R&D Project Selection Incorporating Customer-Perceived Value and Technology Potential: The Case of the Automobile Industry
Authors: Lee Sungjoo , Cho Chanwoo , Choi Jaehong , Yoon Byungun
Published: October 2017

As user-centric innovation has recently emerged as a successful way of developing new products, services, and concepts, it is worth considering the perspectives of potential technology users during R&D project selection processes. Nevertheless, little effort has been made to reflect customer-perceived value in establishing selection criteria, with the focus mainly on technological potential instead. Therefore, this study aims to develop an R&D project selection model incorporating not only technological potential but also customer-perceived value. For this purpose, a new R&D project evaluation model and process is proposed, and its feasibility is tested by potential users in a real scenario. The automobile industry is suitable for our evaluation model because it is a B2C and system-based industry where customer needs are critical to market success and a number of R&D projects are proposed every year. Finally, a supporting tool is developed to help interact with various evaluators and visualize the evaluation results, as customer involvement is recommended for accurate project evaluation from the perspective of technology users. This study is one of the earliest attempts to reflect customer-perceived value in R&D project selection, and practically, the research outputs are expected to be useful to automobile manufacturers in creating value from R&D projects.
Using Comparisons of Clock Frequencies and Sidereal Variation to Probe Lorentz Violation
Authors: Lane Charles
Published: October 2017

This paper discusses clock-comparison experiments, which may be used to test Lorentz symmetry to an extremely high level of precision. We include a brief overview of theoretical predictions for signals of Lorentz violation in clock-comparison experiments and summarize results of experiments that have been performed to date.
Rapid Assessment of the Toxicity of Fungal Compounds Using Luminescent Vibrio qinghaiensis sp. Q67
Authors: Jian Qijie , Gong Liang , Li Taotao , Wang Yong , Wu Yu , Chen Feng , Qu Hongxia , Duan Xuewu , Jiang Yueming
Published: October 2017

Most tropical fruits after harvest are very perishable because of fungal infection. Since some pathogenic fungi can produce hazardous compounds such as mycotoxins, novel rapid and effective methods to assess those hazardous compounds are urgently needed. Herein we report that Vibrio qinghaiensis sp. Q67, a luminescent bacterium, can be used to rapidly assess the toxicities of mycotoxins and cultures from mycotoxin-producing pathogens. A good correlation (R2 > 0.98) between concentrations of the mycotoxins (fumonisin B1, deoxynivalenol, zearalenone, ochratoxin A, patulin, and citrinin) and the luminous intensity of V. qinghaiensis sp. Q67 was obtained. Furthermore, significant correlations (R2 > 0.96) between the amount of mycotoxin and the luminous intensity from the cultures of 10 major mycotoxin-producing pathogens were also observed. In addition, Fusarium proliferatum (half-maximal inhibitory concentration (IC50) = 17.49%) exhibited greater luminescence suppression than Fusarium semitectum (IC50 = 92.56%) or Fusarium oxysporum (IC50 = 28.61%), which was in agreement with the existing higher levels of fumonisin B1, fumonisin B2, and deoxynivalenol, which were measured by high-performance liquid chromatography-tandem mass spectrometry. These results suggest that V. qinghaiensis sp. Q67 is a promising alternative for the rapid evaluation of the toxicity of fungal mycotoxins.
Soil-Transmitted Helminths in Tropical Australia and Asia
Authors: Gordon Catherine , Kurscheid Johanna , Jones Malcolm , Gray Darren , McManus Donald
Published: October 2017

Soil-transmitted helminths (STH) infect 2 billion people worldwide including significant numbers in South-East Asia (SEA). In Australia, STH are of less concern; however, indigenous communities are endemic for STH, including Strongyloides stercoralis, as well as for serious clinical infections due to other helminths such as Toxocara spp. The zoonotic hookworm Ancylostoma ceylanicum is also present in Australia and SEA, and may contribute to human infections particularly among pet owners. High human immigration rates to Australia from SEA, which is highly endemic for STH Strongyloides and Toxocara, has resulted in a high prevalence of these helminthic infections in immigrant communities, particularly since such individuals are not screened for worm infections upon entry. In this review, we consider the current state of STH infections in Australia and SEA.
Mutation of a Conserved Nuclear Export Sequence in Chikungunya Virus Capsid Protein Disrupts Host Cell Nuclear Import
Authors: Jacobs Susan , Taylor Adam , Herrero Lara , Mahalingam Suresh , Fazakerley John
Published: October 2017

Transmitted by mosquitoes; chikungunya virus (CHIKV) is responsible for frequent outbreaks of arthritic disease in humans. CHIKV is an arthritogenic alphavirus of the Togaviridae family. Capsid protein, a structural protein encoded by the CHIKV RNA genome, is able to translocate to the host cell nucleus. In encephalitic alphaviruses nuclear translocation induces host cell shut off; however, the role of capsid protein nuclear localisation in arthritogenic alphaviruses remains unclear. Using replicon systems, we investigated a nuclear export sequence (NES) in the N-terminal region of capsid protein; analogous to that found in encephalitic alphavirus capsid but uncharacterised in CHIKV. The chromosomal maintenance 1 (CRM1) export adaptor protein mediated CHIKV capsid protein export from the nucleus and a region within the N-terminal part of CHIKV capsid protein was required for active nuclear targeting. In contrast to encephalitic alphaviruses, CHIKV capsid protein did not inhibit host nuclear import; however, mutating the NES of capsid protein (∆NES) blocked host protein access to the nucleus. Interactions between capsid protein and the nucleus warrant further investigation.
The Operophtera brumata Nucleopolyhedrovirus (OpbuNPV) Represents an Early, Divergent Lineage within Genus Alphabaculovirus
Authors: Harrison Robert , Rowley Daniel , Mowery Joseph , Bauchan Gary , Burand John
Published: October 2017

Operophtera brumata nucleopolyhedrovirus (OpbuNPV) infects the larvae of the winter moth, Operophtera brumata. As part of an effort to explore the pesticidal potential of OpbuNPV, an isolate of this virus from Massachusetts (USA)—OpbuNPV-MA—was characterized by electron microscopy of OpbuNPV occlusion bodies (OBs) and by sequencing of the viral genome. The OBs of OpbuNPV-MA consisted of irregular polyhedra and contained virions consisting of a single rod-shaped nucleocapsid within each envelope. Presumptive cypovirus OBs were also detected in sections of the OB preparation. The OpbuNPV-MA genome assembly yielded a circular contig of 119,054 bp and was found to contain little genetic variation, with most polymorphisms occurring at a frequency of < 6%. A total of 130 open reading frames (ORFs) were annotated, including the 38 core genes of Baculoviridae, along with five homologous repeat (hr) regions. The results of BLASTp and phylogenetic analysis with selected ORFs indicated that OpbuNPV-MA is not closely related to other alphabaculoviruses. Phylogenies based on concatenated core gene amino acid sequence alignments placed OpbuNPV-MA on a basal branch lying outside other alphabaculovirus clades. These results indicate that OpbuNPV-MA represents a divergent baculovirus lineage that appeared early during the diversification of genus Alphabaculovirus.
The Battle of RNA Synthesis: Virus versus Host
Authors: Harwig Alex , Landick Robert , Berkhout Ben
Published: October 2017

Transcription control is the foundation of gene regulation. Whereas a cell is fully equipped for this task, viruses often depend on the host to supply tools for their transcription program. Over the course of evolution and adaptation, viruses have found diverse ways to optimally exploit cellular host processes such as transcription to their own benefit. Just as cells are increasingly understood to employ nascent RNAs in transcription regulation, recent discoveries are revealing how viruses use nascent RNAs to benefit their own gene expression. In this review, we first outline the two different transcription programs used by viruses, i.e., transcription (DNA-dependent) and RNA-dependent RNA synthesis. Subsequently, we use the distinct stages (initiation, elongation, termination) to describe the latest insights into nascent RNA-mediated regulation in the context of each relevant stage.
Essentials of Endorheic Basins and Lakes: A Review in the Context of Current and Future Water Resource Management and Mitigation Activities in Central Asia
Authors: Yapiyev Vadim , Sagintayev Zhanay , Inglezakis Vassilis , Samarkhanov Kanat , Verhoef Anne
Published: October 2017

Endorheic basins (i.e., land-locked drainage networks) and their lakes can be highly sensitive to variations in climate and adverse anthropogenic activities, such as overexploitation of water resources. In this review paper, we provide a brief overview of one major endorheic basin on each continent, plus a number of endorheic basins in Central Asia (CA), a region where a large proportion of the land area is within this type of basin. We summarize the effects of (changing) climate drivers and land surface–atmosphere feedbacks on the water balance. For the CA region, we also discuss key anthropogenic activities, related water management approaches and their complex relationship with political and policy issues. In CA a substantial increase in irrigated agriculture coupled with negative climate change impacts have disrupted the fragile water balance for many endorheic basins and their lakes. Transboundary integrated land and water management approaches must be developed to facilitate adequate climate change adaptation and possible mitigation of the adverse anthropogenic influence on endorheic basins in CA. Suitable climate adaptation, mitigation and efficient natural resource management technologies and methods are available, and are developing fast. A number of these are discussed in the paper, but these technologies alone are not sufficient to address pressing water resource issues in CA. Food–water–energy nexus analyses demonstrate that transboundary endorheic basin management requires transformational changes with involvement of all key stakeholders. Regional programs, supported by local governments and international donors, which incorporate advanced adaptation technologies, water resource research and management capacity development, are essential for successful climate change adaptation efforts in CA. However, there is a need for an accelerated uptake of such programs, with an emphasis on unification of approaches, as the pressures resulting from climate change and aggravated by human mismanagement of natural water resources leave very little time for hesitation.
Development and characterization of EST‐SSR markers via transcriptome sequencing in Brainea insignis (Aspleniaceae s.l.)1
Authors: Liu Haijun , Yan Zhihua , Xu Hualing , Li Chunmei , Fan Qiang , Liao Wenbo , Liao Boyong
Published: October 2017

Premise of the study:

Brainea insignis (Aspleniaceae) is an endangered tree fern in China whose wild populations have been seriously damaged due to overexploitation. Expressed sequence tag–simple sequence repeat (EST‐SSR) primers were developed to investigate its genetic diversity and provide resources for future conservation studies.

Methods and Results:

We obtained 72,897 unigenes of B. insignis using transcriptome sequencing and detected 15,006 SSRs in 12,058 unigenes. Based on these results, we designed 100 EST‐SSR primer pairs and successfully amplified 52 of them in six individuals; 27 demonstrated polymorphisms after amplification against 72 individuals across three populations. Allele numbers ranged from three to 10, and the observed and expected heterozygosities ranged from 0.105 to 1.000 and from 0.523 to 0.865, respectively, in the tested populations. Most of these primers could be successfully amplified in two other fern species (Blechnum orientale and Chieniopteris harlandii).

Conclusions:

These selected EST‐SSRs are valuable for genetic diversity and conservation studies in B. insignis and other related fern species.
The Implications of 3D Thermal Structure on 1D Atmospheric Retrieval
Authors: Blecic Jasmina , Dobbs-Dixon Ian , Greene Thomas
Published: October 2017

Using the atmospheric structure from a 3D global radiation-hydrodynamic simulation of HD 189733b and the open-source Bayesian Atmospheric Radiative Transfer (BART) code, we investigate the difference between the secondary-eclipse temperature structure produced with a 3D simulation and the best-fit 1D retrieved model. Synthetic data are generated by integrating the 3D models over the Spitzer, the Hubble Space Telescope (HST), and the James Web Space Telescope (JWST) bandpasses, covering the wavelength range between 1 and 11 μm where most spectroscopically active species have pronounced features. Using the data from different observing instruments, we present detailed comparisons between the temperature–pressure profiles recovered by BART and those from the 3D simulations. We calculate several averages of the 3D thermal structure and explore which particular thermal profile matches the retrieved temperature structure. We implement two temperature parameterizations that are commonly used in retrieval to investigate different thermal profile shapes. To assess which part of the thermal structure is best constrained by the data, we generate contribution functions for our theoretical model and each of our retrieved models. Our conclusions are strongly affected by the spectral resolution of the instruments included, their wavelength coverage, and the number of data points combined. We also see some limitations in each of the temperature parametrizations, as they are not able to fully match the complex curvatures that are usually produced in hydrodynamic simulations. The results show that our 1D retrieval is recovering a temperature and pressure profile that most closely matches the arithmetic average of the 3D thermal structure. When we use a higher resolution, more data points, and a parametrized temperature profile that allows more flexibility in the middle part of the atmosphere, we find a better match between the retrieved temperature and pressure profile and the arithmetic average. The Spitzer and HST simulated observations sample deep parts of the planetary atmosphere and provide fewer constraints on the temperature and pressure profile, while the JWST observations sample the middle part of the atmosphere, providing a good match with the middle and most complex part of the arithmetic average of the 3D temperature structure.
Polarimetric Analysis of the Long Duration Gamma-Ray Burst GRB 160530A With the Balloon Borne Compton Spectrometer and Imager
Authors: Lowell A. W. , Boggs S. E , Chiu C. L. , Kierans C. A. , Sleator C. , Tomsick J. A. , Zoglauer A. C. , Chang H.-K. , Tseng C.-H. , Yang C.-Y. , Jean P. , Ballmoos P. von , Lin C.-H. , Amman M.
Published: October 2017

A long duration gamma-ray burst, GRB 160530A, was detected by the Compton Spectrometer and Imager (COSI) during the 2016 COSI Super Pressure Balloon campaign. As a Compton telescope, COSI is inherently sensitive to the polarization of gamma-ray sources in the energy range 0.2–5.0 MeV. We measured the polarization of GRB 160530A using (1) a standard method (SM) based on fitting the distribution of azimuthal scattering angles with a modulation curve and (2) an unbinned, maximum likelihood method (MLM). In both cases, the measured polarization level was below the 99% confidence minimum detectable polarization levels of 72.3% ± 0.8% (SM) and 57.5% ± 0.8% (MLM). Therefore, COSI did not detect polarized gamma-ray emission from this burst. Our most constraining 90% confidence upper limit on the polarization level was 46% (MLM).
Halo Pressure Profile through the Skew Cross-power Spectrum of the Sunyaev–Zel’dovich Effect and CMB Lensing in Planck
Authors: Timmons Nicholas , Cooray Asantha , Feng Chang , Keating Brian
Published: October 2017

We measure the cosmic microwave background (CMB) skewness power spectrum in Planck, using frequency maps of the HFI instrument and the Sunyaev–Zel’dovich (SZ) component map. The two-to-one skewness power spectrum measures the cross-correlation between CMB lensing and the thermal SZ effect. We also directly measure the same cross-correlation using the Planck CMB lensing map and the SZ map and compare it to the cross-correlation derived from the skewness power spectrum. We model fit the SZ power spectrum and CMB lensing–SZ cross-power spectrum via the skewness power spectrum to constrain the gas pressure profile of dark matter halos. The gas pressure profile is compared to existing measurements in the literature including a direct estimate based on the stacking of SZ clusters in Planck.
Revisiting the Energy Budget of WASP-43b: Enhanced Day–Night Heat Transport
Authors: Keating Dylan , Cowan Nicolas B.
Published: October 2017

The large day–night temperature contrast of WASP-43b has so far eluded explanation. We revisit the energy budget of this planet by considering the impact of reflected light on dayside measurements and the physicality of implied nightside temperatures. Previous analyses of the infrared eclipses of WASP-43b have assumed reflected light from the planet is negligible and can be ignored. We develop a phenomenological eclipse model including reflected light, thermal emission, and water absorption, and we use it to fit published Hubble and Spitzer eclipse data. We infer a near-infrared geometric albedo of 24% ± 1% and a cooler dayside temperature of 1483 ± 10 K. Additionally, we perform light curve inversion on the three published orbital phase curves of WASP-43b and find that each suggests unphysical, negative flux on the nightside. By requiring non-negative brightnesses at all longitudes, we correct the unphysical parts of the maps and obtain a much hotter nightside effective temperature of 1076 ± 11 K. The cooler dayside and hotter nightside suggest a heat recirculation efficiency of 51% for WASP-43b, essentially the same as for HD 209458b, another hot Jupiter with nearly the same temperature. Our analysis therefore reaffirms the trend that planets with lower irradiation temperatures have more efficient day–night heat transport. Moreover, we note that (1) reflected light may be significant for many near-IR eclipse measurements of hot Jupiters, and (2) phase curves should be fit with physically possible longitudinal brightness profiles—it is insufficient to only require that the disk-integrated light curve be non-negative.
Spatially Resolved MaNGA Observations of the Host Galaxy of Superluminous Supernova 2017egm
Authors: Chen 陳 Ting-Wan 婷 琬 , Schady Patricia , Xiao Lin , Eldridge J. J. , Schweyer Tassilo , Lee 李 Chien-Hsiu 見 修 , Yu 俞 Po-Chieh 伯 傑 , Smartt Stephen J. , Inserra Cosimo
Published: October 2017

Superluminous supernovae (SLSNe) are found predominantly in dwarf galaxies, indicating that their progenitors have a low metallicity. However, the most nearby SLSN to date, SN 2017egm, occurred in the spiral galaxy NGC 3191, which has a relatively high stellar mass and correspondingly high metallicity. In this Letter, we present detailed analysis of the nearby environment of SN 2017egm using MaNGA IFU data, which provides spectral data on kiloparsec scales. From the velocity map we find no evidence that SN 2017egm occurred within some intervening satellite galaxy, and at the SN position most metallicity diagnostics yield a solar and above solar metallicity (

). Additionally, we measure a small Hα equivalent width (EW) at the SN position of just 34 Å, which is one of the lowest EWs measured at any SLSN or gamma-ray burst position, and indicative of the progenitor star being comparatively old. We also compare the observed properties of NGC 3191 with other SLSN host galaxies. The solar-metallicity environment at the position of SN 2017egm presents a challenge to our theoretical understanding, and our spatially resolved spectral analysis provides further constraints on the progenitors of SLSNe.
A Dense Plasma Globule in the Solar Neighborhood
Authors: Vedantham H. K. , Bruyn A. G. de , Macquart J.-P.
Published: October 2017

The radio source J1819+3845 underwent a period of extreme interstellar scintillation between circa 1999 and 2007. The plasma structure responsible for this scintillation was determined to be just 1–3 pc from the solar system and to posses a density of

cm−3, which is three orders of magnitude higher than the ambient interstellar density. Here we present radio-polarimetric images of the field toward J1819+3845 at wavelengths of 0.2, 0.92, and 2 m. We detect an elliptical plasma globule of approximate size

(major-axis position angle of

), via its Faraday-rotation imprint (

) on the diffuse Galactic synchrotron emission. The extreme scintillation of J1819+3845 was most likely caused at the turbulent boundary of the globule (J1819+3845 is currently occulted by the globule). The origin and precise nature of the globule remain unknown. Our observations represent the first time that plasma structures which likely cause extreme scintillation have been directly imaged.
Stacked Star Formation Rate Profiles of Bursty Galaxies Exhibit “Coherent” Star Formation
Authors: Orr Matthew E. , Hayward Christopher C. , Nelson Erica J. , Hopkins Philip F. , Faucher-Giguère Claude-André , Kereš Dušan , Chan T. K. , Schmitz Denise M. , Miller Tim B.
Published: October 2017

In a recent work based on 3200 stacked Hα maps of galaxies at

, Nelson et al. find evidence for “coherent star formation”: the stacked star formation rate (SFR) profiles of galaxies above (below) the “star formation main sequence” (MS) are above (below) that of galaxies on the MS at all radii. One might interpret this result as inconsistent with highly bursty star formation and evidence that galaxies evolve smoothly along the MS rather than crossing it many times. We analyze six simulated galaxies at

from the Feedback in Realistic Environments (FIRE) project in a manner analogous to the observations to test whether the above interpretations are correct. The trends in stacked SFR profiles are qualitatively consistent with those observed. However, SFR profiles of individual galaxies are much more complex than the stacked profiles: the former can be flat or even peak at large radii because of the highly clustered nature of star formation in the simulations. Moreover, the SFR profiles of individual galaxies above (below) the MS are not systematically above (below) those of MS galaxies at all radii. We conclude that the time-averaged coherent star formation evident stacks of observed galaxies is consistent with highly bursty, clumpy star formation of individual galaxies and is not evidence that galaxies evolve smoothly along the MS.
Dense CO in Mrk 71-A: Superwind Suppressed in a Young Super Star Cluster
Authors: Oey M. S. , Herrera C. N. , Silich Sergiy , Reiter Megan , James Bethan L. , Jaskot A. E. , Micheva Genoveva
Published: October 2017

We report the detection of CO(

) coincident with the super star cluster (SSC) Mrk 71-A in the nearby Green Pea analog galaxy, NGC 2366. Our observations with the Northern Extended Millimeter Array reveal a compact, ∼7 pc, molecular cloud whose mass (

) is similar to that of the SSC, consistent with a high star formation efficiency, on the order of 0.5. There are two spatially distinct components separated by 11

. If expanding, these could be due to momentum-driven stellar wind feedback. Alternatively, we may be seeing remnants of the infalling, colliding clouds responsible for triggering the SSC formation. The kinematics are also consistent with a virialized system. These extreme, high-density, star-forming conditions inhibit energy-driven feedback; the co-spatial existence of a massive, molecular cloud with the SSC supports this scenario, and we quantitatively confirm that any wind-driven feedback in Mrk 71-A is momentum-driven, rather than energy-driven. Since Mrk 71-A is a candidate Lyman continuum emitter, this implies that energy-driven superwinds may not be a necessary condition for the escape of ionizing radiation. In addition, the detection of nebular continuum emission yields an accurate astrometric position for the Mrk 71-A. We also detect four other massive molecular clouds in this giant star-forming complex.
Measuring 14 Elemental Abundances with R = 1800 LAMOST Spectra
Authors: Ting 丁源 Yuan-Sen 森 , Rix Hans-Walter , Conroy Charlie , Ho Anna Y. Q. , Lin Jane
Published: October 2017

The LAMOST survey has acquired low-resolution spectra (R = 1800) for 5 million stars across the Milky Way, far more than any current stellar survey at a corresponding or higher spectral resolution. It is often assumed that only very few elemental abundances can be measured from such low-resolution spectra, limiting their utility for Galactic archaeology studies. However, Ting et al. used ab initio models to argue that low-resolution spectra should enable precision measurements of many elemental abundances, at least in theory. Here, we verify this claim in practice by measuring the relative abundances of 14 elements from LAMOST spectra with a precision of

dex for objects with

(per pixel). We employ a spectral modeling method in which a data-driven model is combined with priors that the model gradient spectra should resemble ab initio spectral models. This approach assures that the data-driven abundance determinations draw on physically sensible features in the spectrum in their predictions and do not just exploit astrophysical correlations among abundances. Our analysis is constrained to the number of elemental abundances measured in the APOGEE survey, which is the source of the training labels. Obtaining high quality/resolution spectra for a subset of LAMOST stars to measure more elemental abundances as training labels and then applying this method to the full LAMOST catalog will provide a sample with more than 20 elemental abundances, which is an order of magnitude larger than current high-resolution surveys, substantially increasing the sample size for Galactic archaeology.
CO-driven Activity in Comet C/2017 K2 (PANSTARRS)
Authors: Meech Karen J. , Kleyna Jan T. , Hainaut Olivier , Micheli Marco , Bauer James , Denneau Larry , Keane Jacqueline V. , Stephens Haynes , Jedicke Robert , Wainscoat Richard , Weryk Robert , Flewelling Heather , Schunová-Lilly Eva , Magnier Eugene , Chambers Kenneth C.
Published: October 2017

Comet C/2017 K2 (PANSTARRS) was discovered by the Pan-STARRS1 (PS1) Survey on 2017 May 21 at a distance of 16.09 au from the Sun, the second most distant discovery of an active comet. Pre-discovery images in the PS1 archive back to 2014 and additional deep CFHT images between 2013 May 10–13 showed the comet to be active at 23.75 au. We derive an upper limit to the nucleus radius of R

N
 = 80 km, assuming a 4% albedo. The spectral reflectivity of the comet surface is similar to “fresh” regions seen on comet 67P/Churyumov–Gerasimenko using the Rosetta OSIRIS camera. Pre-discovery photometry combined with new data obtained with Megacam on the CFHT show that the activity is consistent with CO-ice sublimation and inconsistent with CO2-ice sublimation. The ice sublimation models were run out to perihelion in 2022 at 1.8 au to predict the CO production rates, assuming that the outgassing area does not change. Assuming a canonical 4% active surface area for water-ice sublimation, we present production rate ratios,

/

, for a range of nucleus sizes. Comparing these results with other CO-rich comets, we derive a lower limit to the nucleus radius of ∼14 km. We present predictions for

at a range of distances that will be useful for planning observations with the James Webb Space Telescope and large ground-based facilities.
Supporting Students' Mental Health and Academic Success Through Mobile App and IoT
Authors: Baras Karolina , Soares Luísa , Lucas Carla Vale , Oliveira Filipa , Paulo Norberto Pinto , Barros Regina
Published: October 2017

Smartphones have become devices of choice for running studies on health and well-being, especially among young people. When entering college, students often face many challenges, such as adaptation to new situations, establish new interpersonal relationships, heavier workload and shorter deadlines, teamwork assignments and others. In this paper, the results of four studies examining students' well-being and mental health as well as student's perception of challenges and obstacles they face during their academic journey are presented. In addition, a mobile application that acts as a complement to a successful tutoring project implemented at the authors' University is proposed. The application allows students to keep their schedules and deadlines in one place while incorporating virtual tutor features. By using both, the events from the student's calendar and his or her mood indicators, the application sends notifications accordingly. These notifications encompass motivational phrases, time management guidelines, as well as relaxation tips.
Gravidez na adolescência – ações lúdicas no ensino médio: relato de experiência do projeto de extensão/ Pregnancy in adolescence - ludic actions in middle school: report of experience of extension project
Authors: Lacerda Erica Dionisia de , Carvalho Lorena Nascimento , Fonseca Paulo Ricardo da , Negreiros Anderson Gustavo Vital de , Pereira Katia Maria , Falcão-Silva Vivyanne Santos
Published: October 2017

A extensão universitária trabalha com as diversas problemáticas que envolvem a comunidade, auxiliando-a de forma que haja uma troca de conhecimentos. Atualmente, uma das adversidades que envolvem a sociedade é a gravidez na adolescência, considerada um dos problemas de saúde reprodutiva. Diante desse impasse, é imprescindível que haja ações educativas que busquem orientar e ampliar os conhecimentos dos adolescentes para evitar uma gravidez não planejada. Esse trabalho objetiva relatar a experiência dos graduandos em um projeto de extensão universitária, desenvolvido em uma escola pública do município de Cuité-Paraíba. Foram realizados quatro encontros semanais sequenciais, por meio de oficinas pedagógicas. Essa proposta metodológica enfatizou a importância de uma gravidez planejada, os métodos contraceptivos, e caso ocorra a gravidez, os cuidados necessários para a saúde materna e fetal. As estratégias utilizadas foram atividades lúdicas, as quais facilitaram a interação com os alunos, bem como o aprendizado e envolvimento deles. Vivenciou-se a evolução dos estudantes a cada encontro, de acordo com seus questionamentos, atenção, participação e assiduidade efetiva. Ações estas que associadas aos comentários positivos dos estudantes e da direção, demonstram que os objetivos foram alcançados. Desta forma, evidenciou-se a importância da extensão universitária para a socialização e compartilhamento de saberes junto à comunidade.
Anti-CD20 Antibody Prevents Red Blood Cell Alloimmunization in a Mouse Model
Authors: Elayeb Rahma , Tamagne Marie , Pinheiro Marion , Ripa Julie , Djoudi Rachid , Bierling Philippe , Pirenne France , Vingert Benoît
Published: October 2017

Alloimmunization against RBCs can cause life-threatening delayed hemolytic transfusion reactions. Anti-CD20 Ab has recently been used to prevent alloimmunization. However, its effects remain unclear, particularly in lymphoid organs. We investigated the impact of murine anti-CD20 Ab in the blood and spleen. We assessed protocols for preventing primary alloimmunization and for abolishing established alloimmunization. Prophylactic protocols prevented alloimmunization. However, anti-CD20 treatment could only limit the further amplification of established alloimmunization. Residual B cell subtype distribution was disrupted in the spleen, but adoptive transfer studies indicated that these cells were neither plasma nor memory cells. Anti-CD20 Ab had a major effect on alloreactive CD4+ T cells, increasing the expansion of this population and its CD40 expression, while lowering its CD134 expression, thereby confirming its role in alloimmunization. In conclusion, this study shows that anti-CD20 immunotherapy can prevent RBC Ab development. However, this immunotherapy is limited by the increase in alloreactive CD4+ T lymphocytes. Nevertheless, treatment with anti-CD20 Abs should be considered for patients requiring transfusion with a very high risk of alloimmunization and life-threatening complications.
After Cesarean vesicouterine fistula (Youssef Syndrome) with successful conservative management
Authors: Oñate Celdrán Julián , Gonzalez Valverde Francisco M.
Published: October 2017

Vesicouterine fistula without vaginal leakage of urine, cyclic hematuria and amenorrhea is a rare condition, identified as Youssef’s syndrome. The most common cause of this syndrome is trauma during a cesarean section. Different therapeutical approaches that include conservative treatment, fulguration, hormonal therapy and open, laparoscopic or robotic surgeries have been mentioned in the literature. Herein a case in a 37-year-old patient is reported. Conservative treatment with urinary drainage was successful because the fistula was recognized in the immediate postoperative period.
Religion, culture and political corruption in Nigeria
Authors: Yagboyaju Dhikru A.
Published: October 2017

For so long, development theories and practices have either deliberately neglected or simply overlooked the possible interconnections between religion, culture and the attainment of development goals. Against this background, this article reviews the literature on corruption, as a major factor of underdevelopment in Nigeria, particularly as it relates to religion and culture in the country. In its analysis, this article argues that corruption in Nigeria, especially in view of the country’s multi-ethnic and multi-religious status, must be conceived as a phenomenon transcending legal, political and economic boundaries. The study adopts an interpretative and descriptive methodology for its analysis.
An Explicit Manin-Dem’janenko Theorem in Elliptic Curves
Authors: Viada Evelina
Published: October 2017

Let be a curve of genus at least 2 embedded in E1 × … × EN, where the Ei are elliptic curves for i = 1, . . . , N. In this article we give an explicit sharp bound for the Néron–Tate height of the points of contained in the union of all algebraic subgroups of dimension < max(), where is the minimal dimension of a translate (resp. of a torsion variety) containing .

As a corollary, we give an explicit bound for the height of the rational points of special curves, proving new cases of the explicit Mordell Conjecture and in particular making explicit (and slightly more general in the CM case) the Manin–Dem’janenko method for curves in products of elliptic curves.
Uniform Convergence of Trigonometric Series with General Monotone Coefficients
Authors: Dyachenko Mikhail , Mukanov Askhat , Tikhonov Sergey
Published: October 2017

We study criteria for the uniform convergence of trigonometric series with general monotone coefficients. We also obtain necessary and sufficient conditions for a given rate of convergence of partial Fourier sums of such series.
Весовые неравенства для операторов типа Харди на конусе убывающих функций из пространства Орлича
Authors: Bakhtigareeva Elza Gizarovna , Gol'dman Mikhail L'vovich
Published: October 2017

Установлены критерии справедливости модулярных неравенств
для оператора Харди на конусе $\Omega$
неотрицательных убывающих функций из весового пространства Орлича
с общим весом. Результат базируется на теореме редукции
модулярных неравенств для положительно однородного оператора
на конусе $\Omega$, которая позволяет перейти
к модулярным неравенствам для модифицированного оператора
на конусе всех неотрицательных функций из пространства Орлича.
Показано, что для оператора Харди модифицированный оператор
является обобщенным оператором Харди. Это позволило установить
явные критерии справедливости модулярных неравенств.
Библиография: 11 названий.
Мультипликаторы в пространствах бесселевых потенциалов: случай индексов неотрицательной гладкости
Authors: Belyaev Alexei Alexandrovich , Shkalikov Andrei Andreevich
Published: October 2017

Цель работы - изучить пространства мультипликаторов,
действующих из одного пространства
бесселевых потенциалов $H^s_p(\mathbb{R}^n)$ в другое пространство
бесселевых потенциалов $H^t_q(\mathbb{R}^n)$. Найдены условия,
обеспечивающие эквивалентность равномерной и
стандартной мультипликаторных норм на пространстве мультипликаторов
$$
M[H^s_p(\mathbb{R}^n) \to H^t_q(\mathbb{R}^n)]\qquad
при\quad s,t \in \mathbb{R},\quad p,q > 1.
$$
В случае
$$
p,q > 1,\qquad
p \leqslant q,\qquad s > \frac np,\qquad
t \geqslant 0,\qquad s-\frac np \geqslant t-\frac nq
$$
пространство $M[H^s_p(\mathbb{R}^n) \to H^t_q(\mathbb{R}^n)]$
удается описать явно. А именно, в работе доказано, что оно совпадает
с введенным Р. С. Стрихартцем пространством $H^t_{q,\mathrm{unif}}(\mathbb{R}^n)$
равномерно локализованных бесселевых потенциалов. Доказано также,
что если оба показателя гладкости $s$ и $t$ неотрицательны,
то такое описание возможно только при указанных значениях индексов.
Библиография: 16 названий.
Intervention to Improve Medication Management: Qualitative Outcomes From a Phase I Randomized Controlled Trial
Authors: Schwartz Jaclyn K. , Grogan Kimberly A. , Mutch Melissa J. , Nowicki Emily B. , Seidel Elizabeth A. , Woelfel Stefanie A. , Smith Roger O.
Published: October 2017

OBJECTIVES. We sought to define an occupational therapy intervention to promote medication management and to evaluate the acceptability and effectiveness of the intervention.

METHOD. Nineteen adults with chronic health conditions and poor medication adherence participated in a two-group, blinded, randomized study. They received either an occupational therapy or a standard care intervention. We used a qualitative method to measure participants’ changes in medication management through an interview regarding participants’ perceptions and behaviors.

RESULTS. The occupational therapy intervention group reported greater improvements in medication management and implemented twice as many new adaptive strategies as the standard care group. Participants indicated that interventions related to advocacy, education, assistive technology, environmental modifications, self-monitoring, and good rapport were the active ingredients of the intervention.

CONCLUSIONS. Occupational therapy is an acceptable intervention for medication management, and it can lead to self-perceived improvements and the adoption of new medication management behaviors. Further research is warranted.
Leadership Learning Opportunities in Agriculture, Food, and Natural Resources Education: The Role of the Teacher
Authors: McKim Aaron J. , Pauley Catlin M. , Velez Jonathan J.
Published: October 2017

Learning environments combining agriculture, food, natural resources, and leadership knowledge and skills are increasingly essential in preparing students for future success. School-based agricultural education offers a premier context in which to teach leadership within agriculture, food, and natural resources curriculum. However, providing students with learning experiences in agriculture, food, natural resources, and leadership requires willing and able teachers. In the current national study, the theory of planned behavior was operationalized to understand the role of school-based agriculture teachers in teaching leadership within agriculture, food, and natural resources curriculum. Teachers held a positive attitude toward the behavior, favorable subjective norms, confident perceptions of behavioral control, and knowledge of leadership. On average, school-based agricultural education teachers intended to teach leadership content in 28.49% of curriculum. Structural equation modeling was used to analyze a model of leadership teaching intentions in which attitude toward the behavior and subjective norms were statistically significant, positive predictors of intentions to teach leadership. Recommendations for research and application of findings are addressed.
A Content Analysis of the 2016 National Teach Ag Day's Facebook Posts
Authors: Meyer Diane C. , Holt-Day Jenna , Steede Garrett M. , Meyers Courtney
Published: October 2017

A serious issue facing the agricultural education profession is a lack of qualified teachers. The profession recognizes there is a need to recruit new teachers and retain existing teachers. With these goals in mind, the National Teach Ag Campaign was established as an effort to encourage students to pursue a career in agricultural education and to support existing instructors. Each year, the campaign celebrates National Teach Ag Day to highlight this campaign and encourage others to help reach the initiative’s goals. The purpose of this study is to explore how the National Teach Ag organization used Facebook for its annual “Teach Ag Day” campaign. Guided by the conceptual framework of communicative functions, a census of all posts on the National Teach Ag Facebook page for a three-week period was selected for this quantitative content analysis to evaluate general Facebook page attributes, post characteristics, engagement indicators, and communicative functions. The majority of posts contained text, graphics, hashtags, and links. Community Building was the most prevalent communicative function. The campaign demonstrated many best practices to engage audiences on Facebook, but future efforts should incorporate more videos and respond to comments. Future research should explore the reach and sentiment of shared Teach Ag Day posts.