bluuebunny/crossref_metadata_2025_split huggingface dataset:
Implantación de la innovación en los cibermedios españoles: análisis de las percepciones de los periodistas
Authors: García-Avilés José Alberto , Carvajal Prieto Miguel , Arias Robles Félix 
Published: February 2018

El ecosistema periodístico afronta la aparición de tecnologías y plataformas disruptivas que dificultan su supervivencia en un escenario donde la producción, las audiencias y los modelos de negocio cambian constantemente. Existe el consenso de que la innovación es el recurso necesario para superar estos retos. En este artículo analizamos cómo se origina, se desarrolla y se implanta la innovación en los cibermedios desde la perspectiva de los periodistas. Metodología. La investigación se apoya en 26 entrevistas semiestructuradas a profesionales de una muestra de medios representativa, a lo largo de 2016. Resultados. Los resultados del trabajo de campo abordan el origen y el concepto de innovación, el tipo de innovaciones implementadas en los medios, la organización y los perfiles profesionales. Para los entrevistados, la innovación debe ser “nueva” y tener “éxito”, obedece al deseo de “experimentar”, debe aportar “algo diferente” en el entorno y proviene de la capacidad de “anticiparse a los retos”. La tecnología ocupa un papel relevante y transversal. Los periodistas también valoran las competencias de tipo procedimental, cognoscitivo y actitudinal en la práctica innovadora. Conclusiones. Los profesionales son una fuente clave para conocer los cambios del sector periodístico, porque su visión ayuda a profundizar en áreas de la innovación que suelen quedarse al margen de la perspectiva académica.
Identidad de género, consumo y discriminación a través del precio
Authors: Manzano-Antón Roberto , Martinez-Navarro Gema , Gavilan-Bouzas Diana 
Published: February 2018

Introducción: Esta investigación analiza el fenómeno de la discriminación de precios por género y su presencia en el ámbito de los productos de cuidado personal, poniendo en relación la construcción de la identidad de género en los medios de comunicación con la oferta de productos dirigidos a hombres y mujeres. Metodología: análisis comparativo de la oferta, productos y precios, deuna muestra de 1.504 referencias de productos de la categoría de cuidado personal obtenidos en seis cadenas de supermercados. Resultados y conclusiones: los resultados apuntan a que si bien la discriminación a través del precio no queda probada en productos cuasi idénticos, existen diferencias de precio en productos similares y, sobre todo, existe una oferta más amplia y profunda de opciones dirigida hacia la mujer. En la discusión se plantean consideraciones éticas, comunicativas, sociales y empresariales respecto a la discriminación por género en productos de consumo.
Molecular fingerprinting of particulate organic matter as a new tool for its source apportionment: changes along a headwater drainage in coarse, medium and fine particles as a function of rainfalls
Authors: Jeanneau Laurent , Rowland Richard , Inamdar Shreeram 
Published: February 2018

Abstract. Tracking the sources of
particulate organic matter (POM) exported from catchments is important to
understand the transfer of energy from soils to oceans. The suitability of
investigating the molecular composition of POM by thermally assisted
hydrolysis and methylation using tetramethylammonium hydroxide directly
coupled to gas chromatography and mass spectrometry is presented. The results
of this molecular-fingerprint approach were compared with previously
published elemental (% C, % N) and isotopic data
(δ13C, δ15N) acquired in a nested headwater
catchment in the Piedmont region, eastern United States of America (12 and
79 ha). The concordance between these results highlights the
effectiveness of this molecular tool as a valuable method for source
fingerprinting of POM. It emphasizes litter as the main source of exported
POM at the upstream location (80±14 %), with an increasing
proportion of streambed (SBed) sediment remobilization downstream (42 ± 29 %), specifically during events characterized by high rainfall
amounts. At the upstream location, the source of POM seems to be controlled
by the maximum and median hourly rainfall intensity. An added value of this
method is to directly investigate chemical biomarkers and to mine their
distributions in terms of biogeochemical functioning of an ecosystem. In this
catchment, the distribution of plant-derived biomarkers characterizing
lignin, cutin and suberin inputs were similar in SBed and litter, while the
proportion of microbial markers was 4 times higher in SBed than in litter.
These results indicate that SBed OM was largely from plant litter that has
been processed by the aquatic microbial community.
Fire danger rating over Mediterranean Europe based on fire radiative power derived from Meteosat
Authors: Pinto Miguel M. , DaCamara Carlos C. , Trigo Isabel F. , Trigo Ricardo M. , Turkman K. Feridun 
Published: February 2018

Abstract. We present a procedure that allows the operational generation of daily
forecasts of fire danger over Mediterranean Europe. The procedure combines
historical information about radiative energy released by fire events with
daily meteorological forecasts, as provided by the Satellite Application
Facility for Land Surface Analysis (LSA SAF) and the European Centre for
Medium-Range Weather Forecasts (ECMWF). Fire danger is estimated based on
daily probabilities of exceedance of daily energy released by fires occurring
at the pixel level. Daily probability considers meteorological factors by
means of the Canadian Fire Weather Index (FWI) and is estimated using a daily
model based on a generalized Pareto distribution. Five classes of fire danger
are then associated with daily probability estimated by the daily model. The
model is calibrated using 13 years of data (2004–2016) and validated
against the period of January–September 2017. Results obtained show that
about 72 % of events releasing daily energy above 10 000 GJ belong to the
“extreme” class of fire danger, a considerably high fraction that is more
than 1.5 times the values obtained when using the currently
operational Fire Danger Forecast module of the European Forest Fire
Information System (EFFIS) or the Fire Risk Map (FRM) product disseminated by
the LSA SAF. Besides assisting in wildfire management, the procedure is
expected to help in decision making on prescribed burning within the
framework of agricultural and forest management practices.
Learning with peers, active citizenship and student engagement in Enabling Education
Authors: Zepke Nick 
Published: February 2018

This paper examines one specific question: What support do students in Enabling Education need to learn the behaviours, knowledge and attitudes required to succeed in tertiary education, employment and life? Success appears in many guises. It can mean achieving officially desired outcomes such as retention, completion and employment. It can also mean achieving less measurable outcomes such as deep learning, wellbeing and active citizenship. The paper first introduces an overarching success framework before exploring how the widely used student engagement pedagogy can support learners to achieve both official and personal success outcomes. It then develops two specific constructs applicable to Enabling Education as found in student engagement: facilitated peer learning and active citizenship. Peer learning is here connected to tutor supported but peer facilitated mentoring; active citizenship to educational experiences in classrooms, institutions and workplaces that support flexibility, resilience, openness to change and diversity. The paper includes examples of how facilitated peer learning and active citizenship can build success in practice.
Enhancement of the cerium oxide primer layers deposited on AA2024-T3 aircraft alloy by preliminary Enhancement of the cerium oxide primer layers deposited on AA2024-T3 aircraft alloy by preliminary anodization
Authors: Kozhukharov Stephan V. , Girginov Christian 
Published: February 2018

<p class="PaperAbstract"><span lang="EN-US">The possibility for combination between Anodized Aluminum Oxide (AAO) and Cerium Oxide Primer Layer (CeOPL) for elaboration of efficient protective coatings for AA2024-T3 aircraft alloy is proposed in the present research. The combined AAO/CeOPL coating characterizations include Electrochemical Impedance Spectroscopy (EIS) combined with Linear Voltammetry (LVA), for extended times (until 2520 hours) to a model corrosive medium (3.5% NaCl). Topographical and cross-sectional (SEM and EDX) observations were performed in order to determine the AAO/CeOPL film thickness and composition. The AAO/CeOPL layer durability tests were confirmed by standard Neutral Salt Spray (NSS). The data analysis from all the used measurement methods has undoubtedly shown that the presence of AAO film significantly improves the cerium oxide primer layer (CeOPL) protective properties and performance. </span></p>
Determining the Value of Cerebrospinal Fluid Lactate Dehydrogenase Level in Differentiating Subarachnoid Hemorrhage From Traumatic Lumbar Puncture
Authors: Saeedi Morteza , Vahidi Elnaz , Asri Shirin , Jahanshir Amirhosein 
Published: February 2018

Context
Lumbar puncture (LP) is still an important modality in the diagnosis of subarachnoid hemorrhage (SAH). Rapid and correct fluid analysis can provide patients with a better prognosis by appropriate intervention.

Objective
To determine the value of cerebrospinal fluid lactate dehydrogenase level in differentiation between SAH and traumatic LP.

Design
This was a cross-sectional observational study. Patients with a diagnostic suspicion of SAH who were admitted to the emergency department were enrolled in our study based on the inclusion criteria. All patients underwent head computed tomography scan without contrast. Patients with SAH confirmed on computed tomography scan and those who needed surgical intervention underwent LP by the neurosurgical service in the operation room (group 1). Other patients who fulfilled the inclusion criteria but had a traumatic LP in the emergency setting were also enrolled in our study (group 2). The fluid samples of all LPs were sent to the laboratory to be analyzed. Finally, we compared the results of the 2 groups with each other.

Results
Fifty-two patients were enrolled in our study, 26 patients (50%) from each group. The cerebrospinal fluid lactate dehydrogenase level was significantly higher in group 1 than it was in group 2 (P &lt; .001), and based on receiver operating characteristic curve analysis, the significant level of cerebrospinal fluid lactate dehydrogenase to differentiate SAH from traumatic LP was estimated to be 185. The red blood cell and white blood cell counts were significantly higher in group 1 than they were in group 2 (P &lt; .001).

Conclusions
Cerebrospinal fluid lactate dehydrogenase can effectively differentiate SAH from traumatic tap in LP samples.
234Th‐Based Carbon Export Flux Along the Indian GEOTRACES GI02 Section in the Arabian Sea and the Indian Ocean
Authors: Subha Anand S. , Rengarajan R. , Sarma V. V. S. S. 
Published: February 2018

Abstract234Th (t1/2 = 24.1 d), present in seawater, is a naturally occurring particle‐reactive radionuclide formed through the radioactive decay of its parent, 238U (t1/2 = 4.47 × 109 years). The 234Th:238U disequilibrium is exploited to quantify fluxes of elements moving out of the euphotic zone by attaching on to sinking particles. Under the Indian GEOTRACES programme, high‐resolution sampling in the upper 300 m depth was carried out at 11 stations in the Arabian Sea and the Indian Ocean during April–May 2014 from 17°N to 16°S along 65°E transect to estimate the 234Th‐based particulate organic carbon (POC) export flux from the upper ocean. Average 234Th fluxes integrated to 100 m depth were 2,612 and 1,968 dpm m−2 d−1 for the Arabian Sea and the Indian Ocean, respectively. The estimated POC export fluxes ranged from negligible to 9.0 mmol m−2 d−1, and the 234Th‐based POC export efficiencies were <2 to 5%. For the same season, the Arabian Sea and the Bay of Bengal showed highly contrasting carbon export trends (mean: 4.0 and 0.8 mmol C m−2 d−1, respectively). The modeled POC export fluxes from in situ and satellite‐derived primary production are higher than the 234Th‐based values for the Laws and Dunne models and are comparable for the Henson model. The modeled POC fluxes that depend on surface temperature and primary production could be further refined for the seasonal cycle in biological productivity and associated differences in trophic structure, grazing intensity, recycling efficiency, high bacterial activity, and associated dissolved organic carbon (DOC) export.
Amplified Spontaneous Emission Based on 2D Ruddlesden–Popper Perovskites
Authors: Li Meili , Gao Qinggang , Liu Peng , Liao Qing , Zhang Haihua , Yao Jiannian , Hu Wenping , Wu Yishi , Fu Hongbing 
Published: February 2018

Abstract2D Ruddlesden–Popper perovskites (RPPs) are a class of quantum‐well (QW) materials, composed of layered perovskite QWs encapsulated between two hydrophobic organic layers. Different from widely investigated 3D‐perovskites with free carriers at room temperature, 2D‐RPPs exhibit strongly bound electron–hole pairs (excitons) for high‐performance solar cells and light emitting diodes (LEDs). Herein, it is reported that self‐organized multiple QWs in 2D‐RPP thin films naturally form an energy cascade, which enables an ultrafast energy transfer process from higher energy‐bandgap QWs to lower energy‐bandgap QWs. Therefore, photoexcitations are concentrated on lower‐bandgap QWs, facilitating the build‐up of population inversion. Room‐temperature amplified spontaneous emission (ASE) from 2D‐RPP thin films is achieved at dramatically low thresholds, with gain coefficients as high as >300 cm−1, and stoichiometrically tunable ASE wavelengths from visible to near‐infrared spectral range (530–810 nm). In view of the high efficiency reported for LEDs, these solution‐processed 2D‐RPP thin films may hold the key to realize electrically driven lasers.
Conjugate Additions of Amines to Maleimides via Cooperative Catalysis
Authors: Uno Brice E. , Deibler Kristine K. , Villa Carlos , Raghuraman Arjun , Scheidt Karl A. 
Published: February 2018

AbstractA cooperative system comprising of a lithium Lewis acid and amine base significantly enhances the rate of the conjugate addition of a wide array of amines to maleimides. This operationally simple, scalable method provides mono‐addition products in high yields and purity. This conjugation was successfully applied to the kinase inhibitor crizotinib in a chemoselective ligation to create novel fluorescent probe.magnified image
Fire‐Retardant and Thermally Insulating Phenolic‐Silica Aerogels
Authors: Yu Zhi‐Long , Yang Ning , Apostolopoulou‐Kalkavoura Varvara , Qin Bing , Ma Zhi‐Yuan , Xing Wei‐Yi , Qiao Chan , Bergström Lennart , Antonietti Markus , Yu Shu‐Hong 
Published: February 2018

AbstractEnergy efficient buildings require materials with a low thermal conductivity and a high fire resistance. Traditional organic insulation materials are limited by their poor fire resistance and inorganic insulation materials are either brittle or display a high thermal conductivity. Herein we report a mechanically resilient organic/inorganic composite aerogel with a thermal conductivity significantly lower than expanded polystyrene and excellent fire resistance. Co‐polymerization and nanoscale phase separation of the phenol‐formaldehyde‐resin (PFR) and silica generate a binary network with domain sizes below 20 nm. The PFR/SiO2 aerogel can resist a high‐temperature flame without disintegration and prevents the temperature on the non‐exposed side from increasing above the temperature critical for the collapse of reinforced concrete structures.
Is optical coherence tomography a coherent strategy for carotid artery stenting?
Authors: Safian Robert D. 
Published: February 2018

Key Points

Optical coherence tomography (OCT) is rarely necessary to guide clinical decisions about the appropriateness of carotid revascularization.
For carotid artery stenting (CAS), computed tomography angiography is the best imaging tool to assess arch, carotid, and lesion‐specific anatomy, including vessel dimensions and calcification.
OCT is a coherent strategy after CAS to assess ambiguous angiographic findings and to guide appropriate therapy for dissection, thrombosis, and plaque prolapse.
Bi5+, Bi(3−x)+, and Oxygen Vacancy Induced BiOClxI1−x Solid Solution toward Promoting Visible‐Light Driven Photocatalytic Activity
Authors: Zhang Guoqiang , Cai Lei , Zhang Yanfeng , Wei Yu 
Published: February 2018

AbstractBiOClxI1−x solid solutions with different band gaps were synthesized by adjusting the initial Cl to I molar ratios through a chemical precipitation method at room temperature. The structures, morphologies and optical properties of the samples were characterized by XRD, XPS, Raman, SEM, TEM and UV/Vis, respectively. The photocatalytic experiments showed that the BiOCl0.9I0.1 sample totally decomposed a large concentration of 50 mg L−1 aqueous Rhodamine B (RhB) solution within 12 minutes under visible light irradiation (λ>420 nm), which is 11 times higher than that of pure BiOI. Furthermore, the electron band structure and density of states of BiOCl, BiOI and BiOClxI1−x have been investigated using the DFT (density functional theory) calculation method and electrochemical methods. It was found that there are multiple crystal defects of Bi5+, Bi(3−x)+, and oxygen vacancies in the BiOClxI1−x samples. The results for Mott–Schottky plots and valence‐band XPS spectra showed the position of conduction band (CB) for BiOCl0.9I0.1 was up‐shifted, which is favourable to the redox capacity for the photocatalysts. It could be elucidated that the synergistic effects of multiple crystal defects and unique band structure are critical to improving solar driven photocatalytic activity. This work provides a new highlight toward the construction of high property photocatalysts by tuning the crystal defect and band structure in a simple and efficient way.
Experimental and numerical study on a novel microfluidic method to fabricate curcumin loaded calcium alginate microfibres
Authors: Ghelich Pejman , Salehi Zeinab , Mohajerzedeh Shams , Jafarkhani Mahboubeh 
Published: February 2018

AbstractIn this research, we first performed a computational fluid dynamics (CFD) study of the effects of the inlet solution's concentration and channel height to produce microfibres in a microfluidic system by COMSOL 5.3 to find the optimum ratio of sheath to core flow rate. It proved that the ratio of sheath to core flow rate should considered more than 1 to have jet regime in the microchannel. The results show that the level of Ca2+ diffusion in an alginate inlet solution has a direct and reverse correlation with the initial sheath solution's concentration and initial core solution's concentration, respectively. Secondly, the response surface methodology (RSM) in Design Expert 7.0.0, was used to investigate the effects of alginate and calcium chloride flow rates on the average microfibres' diameter. We found that the best value of Ca2+ concentration in the core flow to produce fine appropriate microfibres is 150 mol/m3. Then, we developed a microchip using lithography, in which a silicon wafer was etched vertically instead of using a SU‐8 photo resist on glass, causing a significant improvement in the quality of channels and mould. The SEM images revealed low roughness of fabricated micro‐channels, which was eye‐catching. Eventually, the possibility of using the microfibres as polymeric carriers for hydrophobic drugs was investigated, and then fluorescent microscopic images of the loaded fibres indicated that the drug is well‐loaded onto the fibres: the results are promising.
Novel Peroxides as Promising Anticancer Agents with Unexpected Depressed Antimalarial Activity
Authors: Coghi Paolo , Yaremenko Ivan A. , Prommana Parichat , Radulov Peter S. , Syroeshkin Mikhail A. , Wu Yu Jun , Gao Jia Ying , Gordillo Floria M. , Mok Simon , Wong Vincent Kam Wai , Uthaipibull Chairat , Terent'ev Alexander O. 
Published: February 2018

AbstractTwenty six peroxides belonging to bridged 1,2,4,5‐tetraoxanes, bridged 1,2,4‐trioxolanes (ozonides), and tricyclic monoperoxides were evaluated for their in vitro antimalarial activity against Plasmodium falciparum (3D7) and for their cytotoxic activities against immortalized human normal fibroblast (CCD19Lu), liver (LO2), and lung (BEAS‐2B) cell lines as well as human liver (HepG2) and lung (A549) cancer‐cell lines. Synthetic ozonides were shown to have the highest cytotoxicity on HepG2 (IC50=0.19–0.59 μm), and some of these compounds selectively targeted liver cancer (selectivity index values for compounds 13 a and 14 a are 20 and 28, respectively) at levels that, in some cases, were higher than those of paclitaxel, artemisinin, and artesunic acid. In contrast some ozonides showed only moderate antimalarial activity against the chloroquine‐sensitive 3D7 strain of P. falciparum (IC50 from 2.76 to 24.2 μm; 12 b, IC50=2.76 μm; 13 a, IC50=20.14 μm; 14 a, IC50=6.32 μm). These results suggest that these derivatives have divergent mechanisms of action against cancer cells and malaria‐infected cells. A cyclic voltammetry study of the peroxides was performed, but most of the compounds did not show direct correlation in oxidative capacity–activity. Our findings offer a new source of antimalarial and anticancer agents through structural modification of peroxide compounds.
The influence of color on impulsiveness and arousal: Part 1 – Hue
Authors: Duan Yiting , Rhodes Peter A. , Cheung Vien 
Published: February 2018

AbstractImpulsiveness and arousal are two similar yet distinct emotional and behavioral states that have been shown to be influenced by color in many fields, such as clothing and environment design. This series of studies investigates the fundamental theory of how color impacts on people's impulsiveness and arousal states. To achieve this goal, psychophysical methods were used to examine the impact of color environment on impulsiveness and arousal. Two main factors were used to quantify them: response time and error rate in problem solving. The psychophysical experiment was designed to examine whether, in a particular color environment, the response time and error rate were different. Participants sat in front of a large TV screen showing different colored backgrounds against which a range of psychometric tests were completed. The color backgrounds varied in hue. During the experiment, participants were required to give their responses to each of the psychometric tests as quickly and accurately as possible. The results showed that different colors can significantly influence response time and error rate, which suggests that color has a distinct influence on impulsiveness and arousal. Gender difference has also been investigated. This article mainly discusses hue influence on impulsiveness and arousal. The influence of chroma along with hue will be explored in the next article.