bluuebunny/crossref_metadata_2025 huggingface dataset:
A Lookup-Table-Based Approach to Estimating Surface Solar Irradiance from Geostationary and Polar-Orbiting Satellite Data
Authors: Zhang Hailong , Huang Chong , Yu Shanshan , Li Li , Xin Xiaozhou , Liu Qinhuo
Published: March 2018

Incoming surface solar irradiance (SSI) is essential for calculating Earth’s surface radiation budget and is a key parameter for terrestrial ecological modeling and climate change research. Remote sensing images from geostationary and polar-orbiting satellites provide an opportunity for SSI estimation through directly retrieving atmospheric and land-surface parameters. This paper presents a new scheme for estimating SSI from the visible and infrared channels of geostationary meteorological and polar-orbiting satellite data. Aerosol optical thickness and cloud microphysical parameters were retrieved from Geostationary Operational Environmental Satellite (GOES) system images by interpolating lookup tables of clear and cloudy skies, respectively. SSI was estimated using pre-calculated offline lookup tables with different atmospheric input data of clear and cloudy skies. The lookup tables were created via the comprehensive radiative transfer model, Santa Barbara Discrete Ordinate Radiative Transfer (SBDART), to balance computational efficiency and accuracy. The atmospheric attenuation effects considered in our approach were water vapor absorption and aerosol extinction for clear skies, while cloud parameters were the only atmospheric input for cloudy-sky SSI estimation. The approach was validated using one-year pyranometer measurements from seven stations in the SURFRAD (SURFace RADiation budget network). The results of the comparison for 2012 showed that the estimated SSI agreed with ground measurements with correlation coefficients of 0.94, 0.69, and 0.89 with a bias of 26.4 W/m2, −5.9 W/m2, and 14.9 W/m2 for clear-sky, cloudy-sky, and all-sky conditions, respectively. The overall root mean square error (RMSE) of instantaneous SSI was 80.0 W/m2 (16.8%), 127.6 W/m2 (55.1%), and 99.5 W/m2 (25.5%) for clear-sky, cloudy-sky (overcast sky and partly cloudy sky), and all-sky (clear-sky and cloudy-sky) conditions, respectively. A comparison with other state-of-the-art studies suggests that our proposed method can successfully estimate SSI with a maximum improvement of an RMSE of 24 W/m2. The clear-sky SSI retrieval was sensitive to aerosol optical thickness, which was largely dependent on the diurnal surface reflectance accuracy. Uncertainty in the pre-defined horizontal visibility for ‘clearest sky’ will eventually lead to considerable SSI retrieval error. Compared to cloud effective radius, the retrieval error of cloud optical thickness was a primary factor that determined the SSI estimation accuracy for cloudy skies. Our proposed method can be used to estimate SSI for clear and one-layer cloud sky, but is not suitable for multi-layer clouds overlap conditions as a lower-level cloud cannot be detected by the optical sensor when a higher-level cloud has a higher optical thickness.
A Hardware-Supported Algorithm for Self-Managed and Choreographed Task Execution in Sensor Networks
Authors: Bordel Borja , Miguel Carlos , Alcarria Ramón , Robles Tomás
Published: March 2018

Nowadays, sensor networks are composed of a great number of tiny resource-constraint nodes, whose management is increasingly more complex. In fact, although collaborative or choreographic task execution schemes are which fit in the most perfect way with the nature of sensor networks, they are rarely implemented because of the high resource consumption of these algorithms (especially if networks include many resource-constrained devices). On the contrary, hierarchical networks are usually designed, in whose cusp it is included a heavy orchestrator with a remarkable processing power, being able to implement any necessary management solution. However, although this orchestration approach solves most practical management problems of sensor networks, a great amount of the operation time is wasted while nodes request the orchestrator to address a conflict and they obtain the required instructions to operate. Therefore, in this paper it is proposed a new mechanism for self-managed and choreographed task execution in sensor networks. The proposed solution considers only a lightweight gateway instead of traditional heavy orchestrators and a hardware-supported algorithm, which consume a negligible amount of resources in sensor nodes. The gateway avoids the congestion of the entire sensor network and the hardware-supported algorithm enables a choreographed task execution scheme, so no particular node is overloaded. The performance of the proposed solution is evaluated through numerical and electronic ModelSim-based simulations.
An Empirical Study on Green Innovation Efficiency in the Green Institutional Environment
Authors: Gao Yang , Tsai Sang-Bing , Xue Xingqun , Ren Tingzhen , Du Xiaomin , Chen Quan , Wang Jiangtao
Published: March 2018

Previous studies have found that reverse technology spillover effects can promote industrial technology modernization in developing countries. However, it is still unknown whether reverse technology spillover effects can improve green innovation efficiency in developing countries. In particular, institutional uncertainties characteristic of transition economies have a significant impact on industrial modernization. Therefore, researching the impact of the institutional environment on the relationship between reverse technology spillover effects and green innovation efficiency is of great significance. In this paper, we use data from G20 countries as well as China’s foreign direct investment (FDI) data to measure the effects of reverse technology spillovers and adopt the threshold effect model to explore the relationship between reverse technology spillover effects and green innovation efficiency as well as the influence of the institutional environment on this relationship, based on China’s provincial panel data from 2003 to 2015. The empirical results show that the reverse technology spillover effects can effectively improve green innovation efficiency. There is a threshold for the influence of the institutional environment on the relationship between reverse technology spillover effects and green innovation efficiency. When the institutional development level surpasses the threshold value, an acceleration effect is generated. In addition, we find that the legal system is the key bottleneck in terms of improving green innovation efficiency. How to improve and perfect the path of institutional construction in China and how to enable institutions to gain threshold speed-up effects have become the major problems the Chinese government faces in institutional construction. The research results of this paper offer a reference to developing countries in regard to improving their institutions and enhancing their green innovation efficiency.
Optimal Placement and Sizing of PV-STATCOM in Power Systems Using Empirical Data and Adaptive Particle Swarm Optimization
Authors: Sirjani Reza
Published: March 2018

Solar energy is a source of free, clean energy which avoids the destructive effects on the environment that have long been caused by power generation. Solar energy technology rivals fossil fuels, and its development has increased recently. Photovoltaic (PV) solar farms can only produce active power during the day, while at night, they are completely idle. At the same time, though, active power should be supported by reactive power. Reactive power compensation in power systems improves power quality and stability. The use during the night of a PV solar farm inverter as a static synchronous compensator (or PV-STATCOM device) has recently been proposed which can improve system performance and increase the utility of a PV solar farm. In this paper, a method for optimal PV-STATCOM placement and sizing is proposed using empirical data. Considering the objectives of power loss and cost minimization as well as voltage improvement, two sub-problems of placement and sizing, respectively, are solved by a power loss index and adaptive particle swarm optimization (APSO). Test results show that APSO not only performs better in finding optimal solutions but also converges faster compared with bee colony optimization (BCO) and lightening search algorithm (LSA). Installation of a PV solar farm, STATCOM, and PV-STATCOM in a system are each evaluated in terms of efficiency and cost.
Optimal Coordination Strategy for an Integrated Multimodal Transit Feeder Network Design Considering Multiple Objectives
Authors: Almasi Mohammad , Sadollah Ali , Oh Yoonseok , Kim Dong-Kyu , Kang Seungmo
Published: March 2018

Public transportation can have an efficient role ingainingtraveler satisfaction while decreasing operation costs through establishing an integrated public transit system. The main objective of this research is to propose an integrated multimodal transit model to design the best combination of both railway and feeder bus mode transit systems, while minimizing total cost. In this paper, we have proposed a strategy for designing transit networks that provide multimodal services at each stop, and for consecutively assigning optimum demand to the different feeder modes. Optimum transit networks have been achieved using single and multi-objective approaches via metaheuristic optimization algorithms, such as simulated annealing, genetic algorithms, and the Non-dominated Sorting Genetic Algorithm II (NSGA-II). The used input data and study area were based on the real transit network of Petaling Jaya, located in Kuala Lumpur, Malaysia. Numerical results of the presented model, containing the statistical results, the optimum demand ratio, optimal solution, convergence rate, and comparisons among best solutions have been discussed in detail.
Does Partner Volatility Have Firm Value Relevance? An Empirical Analysis of Part Suppliers
Authors: Son Insung , Kim Sihyun
Published: March 2018

Considering the lifecycle of products, firms are releasing new products through diversified strategic partnerships via the global supply chain. As the uncertainty about the future increases and strategic partnership grows more important, part suppliers are becoming more and more significant in assessing firm value. From the perspective of the signaling effect, this study analyzed the impact of partner volatility (new partner, old partner, revocation partner) on firm value in terms of global supply chain management. Regarding both Apple and Samsung which have bisected the premium smart phone market, research results reveal that companies eliminated from partnership selection are found to show negative signaling effect, and the newly selected companies have the stronger innovative capacity and higher signaling effect of higher excess earning rate than that of re-selected companies. The findings indicate that the partner volatility of partner companies work as a reliable investment signal for investors to recognize as an investment indication, contributing to firm value. In particular, it is meaningful to confirm that a new partner’s differentiated R&D capacity is a key factor of new product launching and a significant variable capable of determining a firm’s survival in the smart phone market.
Individual and Combined Occurrence of Mycotoxins in Feed Ingredients and Complete Feeds in China
Authors: Ma Rui , Zhang Lei , Liu Meng , Su Yong-Teng , Xie Wen-Mei , Zhang Ni-Ya , Dai Jie-Fan , Wang Yun , Rajput Shahid , Qi De-Sheng , Karrow Niel , Sun Lv-Hui
Published: March 2018

The objective of this study was to investigate the individual and combined contamination of aflatoxin B1 (AFB1), zearalenone (ZEN) and deoxynivalenol (DON) in feedstuffs from different Provinces of China between 2016 and 2017. A total of 1569 samples, including 742 feed ingredients and 827 complete pig feed samples, were collected from various regions of China for mycotoxins analysis. The results showed that individual occurrence rates of AFB1, ZEN, and DON were more than 83.3%, 88%, and 74.5%, respectively, in all the tested samples. DON was the most prevalent contaminant, followed by ZEN and AFB1, with the average concentrations ranging from 450.0–4381.5 μg/kg, 2.3–729.2 μg/kg, and 1.3–10.0 μg/kg, respectively. Notable, 38.2%, 10.8%, and 0.6% of complete pig feeds were contaminated with DON, ZEN, and AFB1 over China’s regulatory limits, respectively. Moreover, over 75.0% analyzed samples were co-contaminated with two or three mycotoxins. In conclusion, the current study revealed that the feedstuffs in China were severely contaminated with DON, followed by ZEN and AFB1 during the past two years. These findings highlight the importance of monitoring mycotoxins in livestock feed and implementing feed management and bioremediation strategies to reduce mycotoxin exposure.
IWRM and the Politics of Scale: Rescaling Water Governance in Uzbekistan
Authors: Zinzani Andrea , Bichsel Christine
Published: March 2018

Over the last two decades, politics of scale and rescaling processes in relation to water have been debated by several scholars, especially by geographers and political ecologists, who emphasized their socio-political nature and their interactions with the environment. By contributing to this debate, this paper analyses rescaling processes in water governance in relation to the implementation politics of Integrated Water Resources Management (IWRM) in Uzbekistan. IWRM and related initiatives were promoted worldwide, especially in the “Global South”. These initiatives proposed the shift in water governance from administrative to hydrographic, or river basin, units. Empirically, the analysis focuses on the Middle Zeravshan valley in Uzbekistan, where IWRM was promoted as a part of post-Soviet water reforms. The analysis demonstrates that rescaling water governance towards IWRM and hydrographic units is inherently political. The evidence shows that the process is deeply interlinked with interests and power of Uzbek hydraulic bureaucracies at multiple scales. Firstly, the IWRM sponsored establishment of hydrographic units coincided with a recentralization of water management, supported by national hydraulic bureaucracies. Secondly, the design of the hydrographic unit and related boundaries in the Middle Zeravshan valley was driven by controversial multi-scalar power dynamics and relations between national and province levels, which emphasized the complexity and the multi-scalar nature of rescaling processes rooted in Post-Soviet political transformations.
Geospatial Modeling of River Systems
Authors: Lindenschmidt Karl-Erich , Carr Meghan
Published: March 2018

Within the context of fluvial systems, geospatial modeling of river networks consists of describing certain patterns in the geographical or geomorphological “fabric” along the course of rivers or streams and correlating these patterns to physical, ecological, biological and chemical processes in the river/stream system’s aquatic environment. Patterns may consist of different sets of similar sequences of geomorphological characteristics, sediment substrate type or flow velocity fields. These patterns will influence processes by defining, for example, behaviors in river ice formation or breakup (physical), fish habitat types (ecological) and transformations in water-quality constituents (biological and chemical). In this special issue of Geospatial Modeling of River Systems, we invited papers to present models and data that correlate geographic/geomorphic features of a river or stream system with physical/ecological/biological/chemical processes in the lotic aquatic environment.
Qualitative impact assessment of an educational workshop on primary care practitioner attitudes to NICE HIV testing guidelines
Authors: Allison Rosalie L , Ricketts Ellie J , Hartney Thomas , Nardone Anthony , Town Katy , Rugman Claire , Folkard Kate , Dunbar J Kevin , McNulty Cliodna AM
Published: March 2018

Background

In 2013, Public Health England piloted the ‘3Cs (chlamydia, contraception, condoms) and HIV (human immunodeficiency virus)’ educational intervention in 460 GP surgeries. The educational HIV workshop aimed to improve the ability and confidence of staff to offer HIV testing in line with national guidelines.

Aim

To qualitatively assess the impact of an educational workshop on GP staff’s attitudes to NICE HIV testing guidelines.

Design & setting

Qualitative interviews with GP staff across England before and after an educational HIV workshop.

Method

Thirty-two GP staff (15 before and 17 after educational HIV workshop) participated in interviews exploring their views and current practice of HIV testing. Interview transcripts were thematically analysed and examined, using the components of the theory of planned behaviour (TPB) and normalisation process theory (NPT) as a framework.

Results

GPs reported that the educational HIV workshop resulted in increased knowledge of, and confidence to offer, HIV tests based on indicator conditions. However, overall participants felt they needed additional HIV training around clinical care pathways for offering tests, giving positive HIV results, and current treatments and outcomes. Participants did not see a place for point-of-care testing in general practice.

Conclusion

Implementation of national HIV guidelines will require multiple educational sessions, especially to implement testing guidelines for indicator conditions in areas of low HIV prevalence. Additional role-play or discussions around scripts suggesting how to offer an HIV test may improve participants’ confidence and facilitate increased testing. Healthcare assistants (HCAs) may need specific training to ensure that they are skilled in offering HIV testing within new patient checks.
MicroRNA-331 Inhibits Proliferation and Invasion of Melanoma Cells by Targeting Astrocyte-Elevated Gene-1
Authors: Chen Li , Ma Guozhang , Cao Xiaohui , An Xiaoxia , Liu Xiguang
Published: March 2018

Melanoma is characterized by aggressive invasion, early metastasis, and resistance to existing chemotherapeutic agents. Accumulated studies have reported that microRNA (miRNA) is a potentially robust molecular tool for developing future therapeutic technologies. Therefore, examining
the expression patterns, biological roles, and associated mechanisms of cancer-related miRNAs in melanoma is essential for developing novel therapeutic targets for patients with this disease. In this study, miRNA-331 (miR-331) was underexpressed in melanoma tissues and cell lines. Functional
assays revealed that the enforced expression of miR-331 inhibited cell proliferation and invasion. In addition, astrocyte-elevated gene-1 (AEG-1) was identified as a novel target of miR-331 through bioinformatics analysis, reverse transcription quantitative polymerase chain reaction analysis,
Western blot analysis, dual-luciferase reporter assay, and Spearman’s correlation analysis. Furthermore, reintroduction of AEG-1 partially abrogated the inhibitory effects of miR-331 overexpression on the proliferation and invasion of melanoma cells. Moreover, miR-331 suppressed the
activation of the PTEN/AKT signaling pathway in melanoma by inhibiting AEG-1. In short, miR-331 may play tumor-suppressive roles in melanoma by directly targeting AEG-1 and regulating the PTEN/AKT signaling pathway, suggesting that miR-331 could be investigated as a therapeutic strategy for
patients with this malignancy.
Effect of ferroelectric BaTiO3 particles on the threshold voltage of a smectic A liquid crystal
Authors: Imamaliyev Abbas Rahim , Ramazanov Mahammadali Ahmad , Humbatov Shirkhan Arastun
Published: March 2018

The influence of small ferroelectric BaTiO3 particles on the planar–homeotropic transition threshold voltage in smectic A liquid crystals consisting of p-nitrophenyl p-decyloxybenzoate and 4-cyano-4′-pentylbiphenyl were studied by using capacitance–voltage (C–V) measurements. It was shown that the BaTiO3 particles significantly reduce the threshold voltage. The obtained result is explained by two factors: an increase of dielectric anisotropy of the liquid crystals and the formation of a strong electric field near polarized particles of BaTiO3. It was shown that the role of the second factor is dominant. The explanations of some features observed in the C–V characteristics are given.
Rate effects on Southern American English VOT
Authors: Morris Paul A.
Published: March 2018

This study examines the effect of speaking rate on VOT durations of initial stops in Southern American English (SAE). English is claimed to have a two-way contrast between long-lag (fortis) and short-lag (lenis) stops, but lenis stops in SAE have been shown to be produced with prevoicing rather than short-lag VOT. This study examines whether SAE lenis stops are specified for privative voice or if prevoicing is an example of contrastive emphasis. Similar to rate effects found in other languages, the data here support the conclusion that SAE does have phonologically specified privative voice in the lenis stop.
Formation of Penumbra in a Sample of Active Regions Observed by the SDO Satellite
Authors: Murabito Mariarita , Zuccarello Francesca , Guglielmino Salvo L. , Romano Paolo
Published: March 2018

Recently, high-resolution observations improved our understanding of the penumbra formation process around sunspots. In particular, two aspects have been carefully investigated: whether the settlement of the penumbra can occur between the main opposite magnetic polarities where new magnetic flux is still emerging, and the establishment of the Evershed flow. In this paper, we present the analysis of twelve active regions (ARs) where both the penumbra formation and the onset of the Evershed flow were observed. We used data acquired by the Helioseismic and Magnetic Imager (HMI) instrument on board the Solar Dynamic Observatory (SDO) satellite analyzing continuum images, magnetograms, and Dopplergrams of the selected ARs. The results obtained in our sample provided the following information about the stable settlement of the penumbra: eight spots formed the first stable penumbral sector in the region between the two opposite polarities, and nine spots formed on the opposite side. Moreover, eleven sunpots showed an inverse Evershed flow (i.e., a plasma motion directed toward the protospot border) before the penumbra formation, which changes within 1–6 hr into the classical Evershed flow as soon as the penumbra forms. Comparing our results with recent observations, we are able to discriminate between the different ways of penumbra formation. Moreover, we suggest that the change from inverse Evershed flow, visible before the penumbra appears, into the classical Evershed flow may be a signature of the formation of penumbral filaments.
The MAVERIC Survey: A Red Straggler Binary with an Invisible Companion in the Galactic Globular Cluster M10
Authors: Shishkovsky Laura , Strader Jay , Chomiuk Laura , Bahramian Arash , Tremou Evangelia , Li Kwan-Lok , Salinas Ricardo , Tudor Vlad , Miller-Jones James C. A. , Maccarone Thomas J. , Heinke Craig O. , Sivakoff Gregory R.
Published: March 2018

We present the discovery and characterization of a radio-bright binary in the Galactic globular cluster M10. First identified in deep radio continuum data from the Karl G. Jansky Very Large Array, M10-VLA1 has a flux density of 27 ± 4 μJy at 7.4 GHz and a flat-to-inverted radio spectrum. Chandra imaging shows an X-ray source with L

X
 ≈ 1031 erg s−1 matching the location of the radio source. This places M10-VLA1 within the scatter of the radio-X-ray luminosity correlation for quiescent stellar-mass black holes, and a black hole X-ray binary is a viable explanation for this system. The radio and X-ray properties of the source disfavor, but do not rule out, identification as an accreting neutron star or white dwarf system. Optical imaging from the Hubble Space Telescope and spectroscopy from the SOAR telescope show that the system has an orbital period of 3.339 days and an unusual “red straggler” component: an evolved star found redward of the M10 red giant branch. These data also show UV/optical variability and double-peaked Hα emission characteristic of an accretion disk. However, SOAR spectroscopic monitoring reveals that the velocity semi-amplitude of the red straggler is low. We conclude that M10-VLA1 is most likely either a quiescent black hole X-ray binary with a rather face-on (i < 4°) orientation or an unusual flaring RS Canum Venaticorum variable-type active binary, and discuss future observations that could distinguish between these possibilities.
What Sets the Line Profiles in Tidal Disruption Events?
Authors: Roth Nathaniel , Kasen Daniel
Published: March 2018

We investigate line formation in gas that is outflowing and optically thick to electron scattering, as may be expected following the tidal disruption of a star by a supermassive black hole. Using radiative transfer calculations, we show that the optical line profiles produced by expanding TDE outflows most likely are primarily emission features, rather than the P-Cygni profiles seen in most supernova spectra. This is a result of the high line excitation temperatures in the highly irradiated TDE gas. The outflow kinematics cause the emission peak to be blueshifted and have an asymmetric red wing. Such features have been observed in some TDE spectra, and we propose that these may be signatures of outflows. We also show that non-coherent scattering of hot electrons can broaden the emission lines by ∼10,000 km s−1, such that the line width in some TDEs may be set by the electron scattering optical depth rather than the gas kinematics. The scattering-broadened line profiles produce distinct, wing-shaped profiles that are similar to those observed in some TDE spectra. The narrowing of the emission lines over time in these observed events may be related to a drop in density rather than a drop in line-of-sight velocity.
After the Fall: The Dust and Gas in E+A Post-starburst Galaxies
Authors: Smercina A. , Smith J. D. T. , Dale D. A. , French K. D. , Croxall K. V. , Zhukovska S. , Togi A. , Bell E. F. , Crocker A. F. , Draine B. T. , Jarrett T. H. , Tremonti C. , Yang Yujin , Zabludoff A. I.
Published: March 2018

The traditional picture of post-starburst galaxies as dust- and gas-poor merger remnants, rapidly transitioning to quiescence, has been recently challenged. Unexpected detections of a significant interstellar medium (ISM) in many post-starburst galaxies raise important questions. Are they truly quiescent, and if so, what mechanisms inhibit further star formation? What processes dominate their ISM energetics? We present an infrared spectroscopic and photometric survey of 33 E+A post-starbursts selected by the Sloan Digital Sky Survey, aimed at resolving these questions. We find compact, warm dust reservoirs with high PAH abundances and total gas and dust masses significantly higher than expected from stellar recycling alone. Both polycyclic aromatic hydrocarbon (PAH)/total infrared (TIR) and dust-to-burst stellar mass ratios are seen to decrease with post-burst age, indicative of the accumulating effects of dust destruction and an incipient transition to hot, early-type ISM properties. Their infrared spectral properties are unique, with dominant PAH emission, very weak nebular lines, unusually strong H2 rotational emission, and deep [C ii] deficits. There is substantial scatter among star formation rate (SFR) indicators, and both PAH and TIR luminosities provide overestimates. Even as potential upper limits, all tracers show that the SFR has typically experienced a decline of more than two orders of magnitude since the starburst and that the SFR is considerably lower than expected given both their stellar masses and molecular gas densities. These results paint a coherent picture of systems in which star formation was, indeed, rapidly truncated, but in which the ISM was not completely expelled, and is instead supported against collapse by latent or continued injection of turbulent or mechanical heating. The resulting aging burst populations provide a “high-soft” radiation field that seemingly dominates the E+A galaxies’ unusual ISM energetics.
Molecular Gas toward the Gemini OB1 Molecular Cloud Complex. II. CO Outflow Candidates with Possible WISE Associations
Authors: Li Yingjie , Li Fa-Cheng , Xu Ye , Wang Chen , Du Xin-Yu , Yang Wenjin , Yang Ji
Published: March 2018

We present a large-scale survey of CO outflows in the Gem OB1 molecular cloud complex and its surroundings, using the Purple Mountain Observatory Delingha 13.7 m telescope. A total of 198 outflow candidates were identified over a large area (∼58.5 square degrees), of which 193 are newly detected. Approximately 68% (134/198) are associated with the Gem OB1 molecular cloud complex, including clouds GGMC 1, GGMC 2, BFS 52, GGMC 3, and GGMC 4. Other regions studied are: the Local arm (Local Lynds, West Front), Swallow, Horn, and Remote cloud. Outflow candidates in GGMC 1, BFS 52, and Swallow are mainly located at ring-like or filamentary structures. To avoid excessive uncertainty in distant regions (≳3.8 kpc), we only estimated the physical parameters for clouds in the Gem OB1 molecular cloud complex and in the Local arm. In those clouds, the total kinetic energy and the energy injection rate of the identified outflow candidates are ≲1% and ≲3% of the turbulent energy and the turbulent dissipation rate of each cloud, indicating that the identified outflow candidates cannot provide enough energy to balance turbulence of their host cloud at the scale of the entire cloud (several to dozens of parsecs). The gravitational binding energy of each cloud is ≳135 times the total kinetic energy of the identified outflow candidates within the corresponding cloud, indicating that the identified outflow candidates cannot cause major disruptions to the integrity of their host cloud at the scale of the entire cloud.
Why Are Peculiar Type Ia Supernovae More Likely to Show the Signature of a Single-degenerate Model?
Authors: Meng Xiang-Cun , Han Zhan-Wen
Published: March 2018

Although type Ia supernovae (SNe Ia) are very useful in many astrophysical fields, their exact progenitor nature is still unclear. A basic method to distinguish the different progenitor models is to search the signal from the single-degenerate (SD) model, e.g., the signal for the existence of a nondegenerate companion before or after supernova explosion. Observationally, some SNe Ia show such signals, while the others do not. Here, we propose a universal model to explain these observations based on the spin-up/spin-down model, in which a white dwarf (WD) will experience a spin-down phase before supernova explosion, and the spin-down timescale is determined by its initial mass, i.e., the more massive the initial WD, the shorter the spin-down timescale and then the more likely the SN Ia is to show the SD signature. Therefore, our model predicts that the SNe Ia from hybrid carbon–oxygen–neon WDs are more likely to show the SD signature observationally, as some peculiar SNe Ia showed.
Lithobius (Monotarsobius) meifengensis, a new species of centipede from high altitude forest in central Taiwan (Chilopoda, Lithobiomorpha, Lithobiidae)
Authors: Chao Jui-Lung , Lee Kwen-Shen , Chang Hsueh-Wen
Published: March 2018

Lithobius (Monotarsobius) meifengensissp. n.occurring at Mei-Feng Farm, Highland Experimental Farm of National Taiwan University, Nantou, Taiwan, is characterised by a male secondary sexual character on leg 15, a very large ventral swelling occupying almost 50% of the ventral surface of the femur; the gently curved apical region bearing approximately 20 short setae and numerous very small pores of flexo-canal epidermal glands. This male secondary sexual character is described for the first time in the genusLithobius.
The peristomatic structures as a source of systematic characters in the genus Lithobius Leach, 1814 (Myriapoda, Chilopoda)
Authors: Ganske Anne-Sarah , Edgecombe Gregory D. , Akkari Nesrine
Published: March 2018

Morphological characters have been widely used in centipede systematics. Here, we aim to obtain morphological information from the preoral chamber and peristomatic structures of lithobiomorph centipedes, with taxonomic sampling focused on the species-rich genusLithobiusLeach, 1814. Towards this goal, we (i) examined the epipharynx and hypopharynx of 32 species belonging to four subgenera of the genusLithobius, viz.LithobiusLeach, 1814,MonotarsobiusVerhoeff, 1905,SigibiusChamberlin, 1913 andEzembiusChamberlin, 1919 using light and scanning electron microscopy, (ii) searched for phylogenetically informative characters and (iii) described interspecific variation. Three species of the lithobiid generaEupolybothrusVerhoeff, 1907,DisphaerobiusAttems, 1926 andNeolithobiusStuxberg, 1875 were additionally examined and considered as likely outgroups. New characters and character states are proposed as additions to current phylogenetic datasets. Similarities in the peristomatic structures allyDisphaerobiuswith Lithobius (Ezembius), suggesting that the subfamily Pterygoterginae is nested within Lithobiinae andLithobius.
Intraspecific variation and phylogeography of the millipede model organism, the Black Pill Millipede Glomeris marginata (Villers, 1789) (Diplopoda, Glomerida, Glomeridae)
Authors: Reip Hans S. , Wesener Thomas
Published: March 2018

The Black Pill Millipede,Glomeris marginata, is the best studied millipede species and a model organism for Diplopoda.Glomeris marginatais widespread, with numerous colour morphs occurring across its range, especially in the south. This study investigates whether colour morphs might represent cryptic species as well as the haplotype diversity and biogeography ofG. marginata. The results of the COI barcoding fragment analysis include 97G. marginata, as well as 21 specimens from seven potentially related species:G. intermediaLatzel, 1884,G. klugiiBrandt, 1833 (G. undulataC.L. Koch, 1844),G. connexaKoch, 1847,G. hexastichaBrandt, 1833,G. maerensAttems, 1927,G. annulataBrandt, 1833 andG. apuanaVerhoeff, 1911. The majority of the barcoding data was obtained through the German Barcode of Life project (GBOL). Interspecifically,G. marginatais separated from its congeners by a minimum uncorrected genetic distance of 12.9 %, confirming its monophyly. Uncorrected intraspecific distances ofG. marginataare comparable to those of other widespreadGlomerisspecies, varying between 0–4.7%, with the largest genetic distances (>2.5 %) found at the Mediterranean coast. 97 sampled specimens ofG. marginatayielded 47 different haplotypes, with identical haplotypes occurring at large distances from one another, and different haplotypes being present in populations occurring in close proximity. The highest number of haplotypes was found in the best-sampled area, western Germany. The English haplotype is identical to northern Spain; specimens from southern Spain are closer to French Mediterranean specimens. Analyses (CHAO1) show that approximately 400 different haplotypes can be expected inG. marginata. To cover all haplotypes, it is projected that up to 6,000 specimens would need to be sequenced, highlighting the impossibility of covering the whole genetic diversity in barcoding attempts of immobile soil arthropod species.
L’espace numérique professionnel et l’évolution de la fonction RH : observation de deux cas différents
Authors: Peng Hongxia
Published: March 2018

Cette recherche s’intéresse à l’articulation entre l’espace numérique professionnel et l’évolution de la fonction RH. À partir d’une double observation menée sur deux catégories d’espaces numériques professionnels : espace « entre-unités » et espace « entre-organisations », la démarche de notre analyse, qui peut être qualifiée d’inductive et qualitative, s’appuie sur des données issues des deux cas observés. Elle montre, d’une part, que l’espace numérique professionnel, notamment l’espace « entre-unités », procure certaines facilités opérationnelles à la fonction RH et, d’autre part, qu’il pourrait être un possible levier contribuant à l’évolution de la fonction RH, notamment au travers du développement de l’espace numérique « entre-organisations ».
Les politiques fédérales de sécurité intérieure au Brésil (2003-2016)
Authors: Deluchey Jean-François
Published: March 2018

L’objectif de cet article est d’étudier dans leurs grandes lignes les politiques fédérales de sécurité intérieure au Brésil entre 2003 et 2016. L’auteur commence par décrire comment s’organise le dispositif de sécurité intérieure brésilien, en montrant que le gouvernement fédéral assume plus un rôle d’incitateur programmatique dans un système où la plupart des effectifs policiers sont sous le contrôle direct des gouverneurs des États fédérés. Ensuite, l’auteur décrit quelle était la situation en 2002, lorsque Luiz Inácio Lula da Silva est élu président pour la première fois, et discute du relatif incrémentalisme des politiques publiques de ce secteur avant et après l’accès de Lula au pouvoir. Dans une quatrième partie, l’auteur distingue quatre périodes successives, lors desquelles les orientations des politiques fédérales ont parfois profondément varié du mandat de Lula à celui de Dilma Rousseff (Parti des Travailleurs). Enfin, l’auteur s’interroge sur les grands défis de la décennie à venir (2017-2026), qui dépendront évidemment de l’évolution de la crise politique qui fait suite à la procédure d’ impeachment de la présidente Dilma Rousseff et à l’arrivée de Michel Temer à la présidence de la République brésilienne en mai 2016.
Pologne/Allemagne : quelle coopération dans une Europe « à deux vitesses » ?
Authors: Richard Dorota
Published: March 2018

Les relations entre la Pologne et l’Allemagne, dégradées depuis octobre 2015, ont pris un nouveau départ au début de l’année 2017. Le pragmatisme d’Angela Merkel, et de nombreux contacts avec les dirigeants polonais, ont permis de renouer le dialogue. Toutefois, les différends persistent et affectent les relations entre les deux pays. En Pologne, la nomination d’un nouveau Premier ministre et le remaniement du gouvernement pourraient avoir pour objectif d’apaiser la situation.
(Re) significaciones de la democracia
Authors: Zegada María Teresa
Published: March 2018

La democracia ha adquirido en Bolivia, estos últimos años, centralidad en el debate académico y político. Es que la democracia representativa junto a los otros elementos constitutivos del modelo anterior, como el neoliberalismo, la democracia pactada, el monopolio partidario, y otros, fueron cuestionados por la sociedad y las organizaciones, sino también mediante la construcción de una demanda colectiva de una profunda reforma estatal Se encuentra la noción de democracia vacía de contenido y adquiere sentido en la medida en que se articula a algún principio articulador o hegemónico particular2. En otras palabras, la discusión sobre la democracia o los adjetivos que se le atribuyan, se sitúan en el terreno de la disputa política estructural entre principios hegemónicos distintos que pugnan por el poder y por (re)articular los elementos ideológicos -en este caso la democracia-, que resultan fundamentales en determinada coyuntura, a sus respectivos discursos otorgándole sentido.
El cine peruano de animación digital o la aparición de un nuevo paradigma audiovisual en América latina
Authors: Terrones Félix
Published: March 2018

A partir del estudio de casos representativos, articulados de manera cronológica, interrogamos la evolución de la animación peruana desde su emergencia hasta el momento actual. Así, subrayaremos su progresiva profesionalización en un mercado cada vez más internacional, sin olvidar su interacción con el, favorable o no, ámbito institucional estatal. En este contexto, son delineadas las estrategias con las que la animación peruana acentúa progresivamente su voluntad de insertarse en la industria a escala mundial. Entre lo local y lo global, la animación peruana manifiesta la necesidad de dar forma a temáticas nacionales, pero sin descuidar el potencial público extranjero.
La Malinche et les miroitements d’une image engloutie dans Le labyrinthe de la solitude
Authors: Plâa Monique
Published: March 2018

Dans son essai, Octavio Paz, le poète, a recours à la poésie et à la création d’images. La Malinche est une image particulière : créée dans le chapitre IV du Labyrinthe où elle incarne la femme passive et violée des origines, elle est aussitôt engloutie. L’examen de quelques représentations iconographiques antérieures et contemporaines de la Malinche révèle que l’image sombre et tragique dont Paz semble faire l’emblème du mal-être mexicain, reflet d’une image créée par Orozco, est essentiellement une création personnelle. Mais pourquoi alors avoir définitivement englouti une image si puissante ? On peut émettre trois hypothèses : l’arbitraire qui a présidé à sa naissance, la centralité que cette image donnait à la Conquête alors que Paz entendait n’en faire qu’une étape parmi d’autres ; la nécessité de déplacer le centre de gravité de l’analyse de l’être mexicain aux circonstances de l’être universel. Créée pour servir la pensée, l’image a disparu quand elle ne la servait plus.
Le cheval et le bouclier d’Achille : la représentation de l’histoire à travers le prisme d’Homère dans le Diálogo de las transformacionesde Pitágoras et le Crotalón
Authors: Quero Fabrice
Published: March 2018

Le Diálogo de las transformaciones de Pitágoras et le Crotalón contiennent de nombreuses similitudes remarquées depuis longtemps par les chercheurs qui se sont penchés sur ces deux principaux avatars du dialogue lucianesque de l’Espagne du premier XVIe siècle. S’il est impossible d’établir avec certitude une filiation entre les deux textes, ni même de définir la nature des relations entre eux, il est indéniable qu’ils se rejoignent sur d’importants aspects. La place que l’histoire occupe dans chacun d’eux est certes très différente – limitée dans le premier, plus importante dans le second – mais la réflexion méta-littéraire à laquelle elle se rattache paraît commune aux deux dialogues. Tout porte à croire, en effet, que la manière de représenter les faits passés importe tout autant, sinon davantage, que ces faits en eux-mêmes et que cette option est le résultat des complexes rapports entre histoire, épopée et récit narratif, que l’intention satirique qui parcourt ces deux textes tend encore à compliquer. La réflexion menée ici portera principalement sur le 6e chant du Crotalón.
« ¿Uno es escribir como poeta; otro como historiador? »
Authors: Lyvet Caroline
Published: March 2018

Il s’agira d’analyser les différents commentaires métanarratifs des narrateurs de deux productions fictionnelles longues de Gonzalo de Céspedes y Meneses pour mieux voir comment sont appréhendées les insertions d’éléments historiques dans la fiction au moment où les catégories du vrai, du vraisemblable et les attributions du poète et de l’historien se trouvent en pleine redéfinition. Nous nous concentrerons également sur la façon dont l’écriture romanesque vient compléter, enrichir les ouvrages historiques, exposant ce qu’ils taisent ou éludent sur un temps lointain, mais surtout sur le passé proche des récepteurs, disant autrement – et peut-être mieux – les inquiétudes du début du XVIIe siècle, et participant d’une défense intéressée du projet monarchique.
Les Sánchez Muñoz et le Romanz del Cid
Authors: Rochwert-Zuili Patricia
Published: March 2018

À travers l’étude de ses marginalia, on retrace ici l’histoire de l’un des témoignages manuscrits de la Chronique de Castille, de sa composition à sa réception. Les interactions entre le texte, les images et les annotations marginales révèlent non seulement l’identité de celui qui pourrait être le promoteur de cette copie navarro-aragonaise, mais aussi celle de ses divers lecteurs. Cette recherche mène ainsi à la redécouverte de l’unique manuscrit sur l’histoire du Cid que possédaient les Sánchez Muñoz, l’une des familles les plus puissantes de Teruel.
Intertextualidad en los márgenes: las formas de la cita en las glosas de la Crónica de la población de Ávila
Authors: Abeledo Manuel
Published: March 2018

Ce travail analyse les trois gloses d’un lecteur de ca. 1700 dans le manuscrit 11/8544 de la Real Academia de la Historia, qui contient le texte de la Crónica de la población de Ávila. Les trois gloses sont des citations presque textuelles d’un manuscrit de Bartolomé Fernández Valencia de 1676. Cette filiation nous permet, en plus d’éclairer la circulation des textes historiographiques à propos d’Ávila à cette époque, de résoudre quelques errata dans notre édition du texte et dans un article écrit auparavant à propos des gloses de ce manuscrit, de nous interroger à propos de la nature de la citation textuelle dans l’espace marginal, et sur les formes d’appropriation d’un texte de la part des glossateurs.
Carta a Luis XIII (1635) : un libelle belliqueux et révérencieux. Quand la marge quévédienne oscille entre guerre et paix…
Authors: Hermes Delphine
Published: March 2018

La marge déploie dans la périphérie du texte des ajouts, ratures et corrections qui viennent éclairer, expliciter ou contredire parfois le bloc central. Le support manuscrit, ou imprimé et amendé par des notes marginales, donne alors à la sphère de la réception tout son sens à plus forte raison quand il s’agit de l’auteur lui-même qui retouche sa production. Dans sa lettre à Louis XIII, Francisco de Quevedo transforme le creuset du texte en une superposition de pensées selon les phases de rédaction et de relecture. Inscrite dans le conflit franco-espagnol, cette lettre dévoile les inflexions idéologiques et personnelles d’un auteur qui répond avec conviction à la déclaration de guerre de 1635. Toutefois, à l’image du conflit historique et comme en témoigne l’espace liminaire, l’écriture envenimée oscille entre guerre, reproches, diplomatie, ménagement du commanditaire, déférence royale et désir de paix.
Leopoldo María Panero: paradigmas de un no-lugar
Authors: Pérez Rojas Concepción
Published: March 2018

Leopoldo María Panero, l’une des voix les plus singulières de la poésie espagnole actuelle, reste, en même temps, un personnage controversé, dans la lignée des poètes dits maudits. Néanmoins, s’il y a eu une constante dans son œuvre (et dans sa vie), celle-ci n’est autre que le lieu, c’est-à-dire chez Panero le non-lieu : ces espaces (tant physiques qu’affectifs et discursifs) qui ont défini sa trajectoire vitale et littéraire. Ces non-lieux qui, chez Panero, recouvrent l’affectif (famille et école), le physique (prison, asile) et le discursif (folie, création). Et ces derniers, folie et création, sont les seuls espaces qu’il assume comme siens : non seulement il les traverse mais il s’y installe. Espaces féconds, en constant renouvellement et transformation : les espaces, par excellence, de l’acte créateur et fondateur.
Écriture et enfermement dans la poésie de Leopoldo María Panero
Authors: Lecointre Melissa
Published: March 2018

La trajectoire de Leopoldo María Panero est intimement liée à sa fréquentation des hôpitaux psychiatriques dès la fin des années 1960, hôpitaux dans lesquels le poète a d’ailleurs composé une grande partie de son œuvre. Cet article étudie la manière dont l’internement a pu être à l’origine d’une poétique de l’enfermement chez un auteur qui refuse toute norme, qu’elle soit politique, sociale ou académique. L’enfermement est alors, pour le poète, une manière de se situer en dehors d’un système qu’il rejette.
La escritura de Leopoldo María Panero
Authors: Blesa Túa
Published: March 2018

L’écriture de Leopoldo María Panero est une continuelle transgression des conventions établies, aussi bien en termes de contenus que de formes. Ce travail porte sur les conséquences qu’ont sur le sujet l’énonciation de ses livres dotée d’une double autorité, un je+je, sur l’usage de noms de formes littéraires tels que haikus, prose, etc., pour désigner des textes qui ne répondent pas aux règles attendues, mais aussi sur ses traductions singulières ainsi que les textes théoriques qui les accompagnent ; là, Panero propose en définitive ce que l’auteur de l’article nomme une « littérature organique », à savoir une proposition de littérature post-structuraliste : les exemples qui sont commentés ici en sont un témoignage.