bluuebunny/crossref_metadata_2025 huggingface dataset:
Development of Type 2 Innate Lymphoid Cells Is Selectively Inhibited by Sustained E Protein Activity
Authors: Berrett Hannah , Qian Liangyue , Roman Olga , Cordova Alanis , Simmons Amie , Sun Xiao-Hong , Alberola-Ila José
Published: December 2019

Innate lymphoid cells (ILCs) are tissue-resident lymphoid cells that reside mostly at barrier surfaces and participate in the initial response against pathogens. They are classified into different types based on effector programs that are based on cytokine production and transcription factor expression. They all derive from the common lymphoid precursor, but the molecular mechanisms regulating ILC subset development is not well understood. Experiments using Id2 knockout mice have previously shown that E protein activity inhibition is an absolute requirement for the development of all ILC subsets. In this study, we use a genetic approach to demonstrate that small increases in E protein activity during ILC development selectively inhibit type 2 ILC development. Type 1 ILCs are mostly unperturbed, and type 3 ILC show only a minor inhibition. This effect is first evident at the ILC2 progenitor stage and is ILC intrinsic. Therefore, our results demonstrate that modulation of E protein activity can bias cell fate decisions in developing ILCs.
Neutrophils Enhance Their Own Influx to Sites of Bacterial Infection via Endosomal TLR-Dependent Cxcl2 Production
Authors: Lentini Germana , Famà Agata , Biondo Carmelo , Mohammadi Nastaran , Galbo Roberta , Mancuso Giuseppe , Iannello Daniela , Zummo Sebastiana , Giardina Miriam , De Gaetano Giuseppe Valerio , Teti Giuseppe , Beninati Concetta , Midiri Angelina
Published: December 2019

The influx of neutrophils to infection sites is a fundamental step in host defenses against the frequent human pathogen group B Streptococcus (GBS) and other extracellular bacteria. Using a mouse model of GBS-induced peritonitis, we show in this study that the chemokines Cxcl1 and Cxcl2 play distinctive roles in enhancing the recruitment and the antibacterial activities of neutrophils in a manner that is linked to differences in the cellular sources of these mediators. Cell depletion experiments demonstrated that neutrophils make a significant contribution to the in vivo production of Cxcl2 but not Cxcl1. In vitro, neutrophils responded weakly to LPS but released high levels of Cxcl2 after stimulation with GBS or other bacteria. Neutrophil-derived Cxcl2 acted in an autocrinous manner to increase its own production and to enhance antibacterial activities, including the release of oxygen radicals. In both neutrophils and macrophages, the production of Cxcl1/2 largely required the presence of functional UNC93B1, a chaperone protein involved in signaling by endosomal TLRs. Moreover, the phenotype of UNC93B1-defective phagocytes could be recapitulated by the simultaneous absence of TLR7, 9, and 13 but not by the absence of individual TLRs. Collectively, our data show that neutrophils recognize Gram-positive and Gram-negative bacteria by means of multiple phagosomal TLRs, resulting in de novo synthesis of Cxcl2, amplification of neutrophil recruitment, and potentiation of their antibacterial activities. These data may be useful to devise alternative therapeutic strategies aimed at enhancing the recruitment and the functional activities of polymorphonuclear leukocytes during infections caused by antibiotic-resistant bacteria.
Software development for hepatopulmonary shunt estimation by gamma camera method in transarterial radioembolization
Authors: Jha Ashish Jha , Mithun Sneha , Puranik Ameya C. , Purandare Nilendu , Shah Sneha , Agrawal Archi , Kulkarni Suyash S. , Shetty Nitin , Rangarajan Venkatesh
Published: December 2019

Trans-arterial radioembolization (TARE) is an established treatment for inoperable hepatocellular carcinoma and liver metastases from Carcinoma of gastrointestinal tract. Radiation-induced toxicity to the lung parenchyma is the dose-limiting factor in TARE. Pretreatment hepatopulmonary shunt (HPS) is estimated by gamma camera method by transarterial administration of 370MBq 99mTc macro aggregated albumin. We have developed HPS software on XELERIS-1.123 workstation, GE medical systems, Milwaukee, USA, for accurate calculation of HPS. This software has also been tested on a higher version of XELERIS workstation, and it has been found to work well in all versions.
Efficacy and Safety of Pembrolizumab in Patients with Refractory Advanced Biliary Tract Cancer: Tumor Proportion Score as a Potential Biomarker for Response
Authors: Kang Junho , Jeong Jae Ho , Hwang Hee-Sang , Lee Sang Soo , Park Do Hyun , Oh Dong Wook , Song Tae Jun , Kim Ki-Hun , Hwang Shin , Hwang Dae Wook , Kim Song Cheol , Park Jin-hong , Hong Seung-Mo , Kim Kyu-pyo , Ryoo Baek-Yeol , Yoo Changhoon
Published: December 2019

Purpose The current standard chemotherapy for advanced biliary tract cancer (BTC) has limited benefit, and novel therapies need to be investigated. Materials and MethodsIn this prospective cohort study, programmed death ligand-1 (PD-L1)–positive BTC patients who progressed on first-line gemcitabine plus cisplatin were enrolled. Pembrolizumab 200 mg was administered intravenously every 3 weeks. ResultsBetween May 2018 and February 2019, 40 patients were enrolled. Pembrolizumab was given as second-line (47.5%) or ≥ third-line therapy (52.5%). The objective response rate was 10% and 12.5% by Response Evaluation Criteria in Solid Tumor (RECIST) v1.1 and immune- modified RECIST (imRECIST) and median duration of response was 6.3 months. Among patients with progressive disease as best response, one patient (1/20, 5.0%) achieved complete response subsequently. The median progression-free survival (PFS) and overall survival (OS) were 1.5 months (95% confidence interval [CI], 0.0 to 3.0) and 4.3 months (95% CI, 3.5 to 5.1), respectively, and objective response per imRECIST was significantly associated with PFS (p < 0.001) and OS (p=0.001). Tumor proportion score ≥ 50% was significantly associated with higher response rates including the response after pseudoprogression (vs. < 50%; 37.5% vs. 6.5%; p=0.049). Conclusion Pembrolizumab showed modest anti-tumor activity in heavily pretreated PD-L1–positive BTC patients. In patients who showed objective response, durable response could be achieved.
On Open Book Embedding of Contact Manifolds in the Standard Contact Sphere
Authors: Saha Kuldeep
Published: December 2019

We prove some open book embedding results in the contact category with a constructive approach. As a consequence, we give an alternative proof of a theorem of Etnyre and Lekili that produces a large class of contact 3-manifolds admitting contact open book embeddings in the standard contact 5-sphere. We also show that all the Ustilovsky $(4m+1)$-spheres contact open book embed in the standard contact $(4m+3)$-sphere.
“Tell him anyway”: Zu Uwe Timms Roman Ikarien
Authors: Virant Špela
Published: December 2019

Der Roman Ikarien (2017) von Uwe Tim ist in Deutschland der Nachkriegszeit verortet, wo Wagner einem jungen amerikanischen Offizier die Lebensgeschichte des Eugenikers Alfred Ploetz erzählt. Obwohl Timm einen historischen Stoff verarbeitet, werden im Roman aktuelle und philosophische Themen angesprochen. Timm verfolgt dabei Ideen, Denkmuster und Denkfehler, die zu Gewalt, Rassismus und Genozid führen können. Er entwickelt aber auch literarische Gegenbilder dazu. Da sich Timm bereits seit Jahrzehnten in seinen Werken mit diesen Themen beschäftigt, wird der Roman Ikarien im Kontext seines Œuvres und der Geschichte von Utopien gestellt, auf die schon der Romantitel verweist.
Estimating cloud condensation nuclei number concentrations using aerosol optical properties: role of particle number size distribution and parameterization
Authors: Shen Yicheng , Virkkula Aki , Ding Aijun , Luoma Krista , Keskinen Helmi , Aalto Pasi P. , Chi Xuguang , Qi Ximeng , Nie Wei , Huang Xin , Petäjä Tuukka , Kulmala Markku , Kerminen Veli-Matti
Published: December 2019

Abstract. The concentration of cloud condensation nuclei (CCN) is an essential
parameter affecting aerosol–cloud interactions within warm clouds. Long-term
CCN number concentration (NCCN) data are scarce; there are a lot more
data on aerosol optical properties (AOPs). It is therefore valuable to
derive parameterizations for estimating NCCN from AOP measurements. Such
parameterizations have already been made, and in the present work a new parameterization
is presented. The relationships between NCCN, AOPs, and size
distributions were investigated based on in situ measurement data from six
stations in very different environments around the world. The relationships
were used for deriving a parameterization that depends on the scattering
Ångström exponent (SAE), backscatter fraction (BSF), and total
scattering coefficient (σsp) of PM10 particles. The analysis
first showed that the dependence of NCCN on supersaturation (SS) can be
described by a logarithmic fit in the range SS <1.1 %, without
any theoretical reasoning. The relationship between NCCN and AOPs was
parameterized as NCCN≈((286±46)SAE ln(SS/(0.093±0.006))(BSF − BSFmin) + (5.2±3.3))σsp, where BSFmin is the minimum BSF, in practice
the 1st percentile of BSF data at a site to be analyzed. At the lowest
supersaturations of each site (SS ≈0.1 %), the average bias,
defined as the ratio of the AOP-derived and measured NCCN, varied from
∼0.7 to ∼1.9 at most sites except at a
Himalayan site where the bias was >4. At SS >0.4 % the average bias ranged from ∼0.7 to ∼1.3 at most sites. For the marine-aerosol-dominated site Ascension Island the bias was
higher, ∼1.4–1.9. In other words, at SS >0.4 % NCCN was estimated with an average uncertainty of approximately
30 % by using nephelometer data. The biases were mainly due to the biases
in the parameterization related to the scattering Ångström exponent
(SAE). The squared correlation coefficients between the AOP-derived and
measured NCCN varied from ∼0.5 to ∼0.8. To
study the physical explanation of the relationships between NCCN and
AOPs, lognormal unimodal particle size distributions were generated and
NCCN and AOPs were calculated. The simulation showed that the
relationships of NCCN and AOPs are affected by the geometric mean
diameter and width of the size distribution and the activation diameter. The
relationships of NCCN and AOPs were similar to those of the observed
ones.
Rapid reduction of black carbon emissions from China: evidence from 2009–2019 observations on Fukue Island, Japan
Authors: Kanaya Yugo , Yamaji Kazuyo , Miyakawa Takuma , Taketani Fumikazu , Zhu Chunmao , Choi Yongjoo , Komazaki Yuichi , Ikeda Kohei , Kondo Yutaka , Klimont Zbigniew
Published: December 2019

Abstract. A long-term, robust observational record of atmospheric black carbon (BC) concentrations at Fukue Island for 2009–2019 was produced by unifying data from a continuous soot-monitoring system and a multi-angle absorption photometer. This record was then used to analyze emission trends from China. We identified a rapid reduction in BC concentrations of (−5.8 ± 1.5) % y−1 or −48 % from 2010 to 2018. We concluded that an emission change of (−5.3 ± 0.7) % y−1, related to changes in China of as much as −4.6 % y−1, was the main underlying driver. This evaluation was made after correcting for the interannual meteorological variability, by using regional atmospheric chemistry model simulations (WRF/CMAQ) with constant emissions. This resolves current fundamental disagreements about the sign of the BC emission trend from China over the past decade, assessed from bottom-up emission inventories; our analysis supported inventories reflecting the governmental clean air actions after 2010 (e.g., MEIC1.3, ECLIPSE v5a and v6b, and REAS updated) and recommended revision to those not (e.g., CEDS). Our estimated emission trends were fairly uniform over seasons but diverse among air-mass origins. Stronger BC reductions occurred in regions of South-Central East China, accompanied by CO emission reduction, while weaker BC reductions occurred in North-Central East China and Northeast China. Prior to 2017, the BC and CO emission trends were both unexpectedly positive in Northeast China during winter months, possibly influencing climate at higher latitudes. The pace of emission reduction over China surpasses those of SSP1 scenarios (SSP: shared socioeconomic pathways) for 2015–2030, suggesting highly successful emission control policies. At Fukue Island, the BC fraction of PM2.5 also steadily decreased over the last decade, suggesting that BC emission reduction started without significant delay with respect to other pollutants, such as NOx and SO2, which are among key precursors of scattering PM2.5.
OH level populations and accuracies of Einstein-A coefficients from hundreds of measured lines
Authors: Noll Stefan , Winkler Holger , Goussev Oleg , Proxauf Bastian
Published: December 2019

Abstract. OH airglow is an important nocturnal emission of the Earth's mesopause region. As it is chemiluminescent radiation in a thin medium, the population distribution over the various roto-vibrational OH energy levels of the electronic ground state is not in local thermodynamic equilibrium (LTE). In order to better understand these non-LTE effects, we studied hundreds of OH lines in a high-quality mean spectrum based on observations with the high-resolution Ultraviolet and Visual Echelle Spectrograph at Cerro Paranal in Chile. Our derived populations cover vibrational levels between v = 3 and 9, rotational levels up to N = 24, and individual Λ-doublet components when resolved. As the reliability of these results critically depends on the Einstein-A coefficients used, we tested six different sets and found clear systematic errors in all of them, especially for Q-branch lines and individual Λ-doublet components. In order to minimise the deviations in the populations for the same upper level, we used the most promising coefficients from Brooke et al. (2016, JQSRT 168, 142) and further improved them with an empirical correction approach. The resulting rotational level populations show a clear bimodality for each v, which is characterised by a probably fully thermalised cold component and a hot population where the rotational temperature increases between v = 9 and 4 from about 700 to about 7,000 K and the corresponding contribution to the total population at the lowest N decreases by an order of magnitude. The presence of the hot populations causes non-LTE contributions to rotational temperatures at low N, which can be estimated quite robustly based on the two-temperature model. The bimodality is also clearly indicated by the dependence of the populations on changes in the effective emission height of the OH emission layer. The degree of thermalisation decreases with increasing layer height due to a higher fraction of the hot component. Our high-quality population data are promising with respect to a better understanding of the OH thermalisation process.
Separation of Convective and Stratiform Precipitation Using Polarimetric Radar Data with A Support Vector Machine Method
Authors: Wang Yadong , Tang Lin , Chang Pao-Liang , Tang Yu-Shuang
Published: December 2019

Abstract. A precipitation separation approach using support vector machine method was developed and tested on a C-band polarimetric radar located in Taiwan (RCMK). Different from some existing separation methods that require a whole volume radar data, the proposed approach utilizes the polarimetric radar data from the lowest tilt to classify precipitation echoes into either stratiform or convective type. Through a support vector machine method, the inputs of radar reflectivity, differential reflectivity, and the separation index are utilized in the classification. The feature vector and weight vector in the support vector machine were optimized using well-classified training data. The proposed approach was tested with multiple precipitation events including two widespread mixture of stratiform and convective events, a tropical typhoon precipitation event, and a stratiform precipitation event. In the evaluation, the results from the multi-radar-multi-sensor (MRMS) precipitation classification approach were used as the ground truth, and the performances from proposed approach were further compared with the approach using separation index only with different thresholds. It was found that the proposed method can accurately identify the convective cells from stratiform storms with the radar data only from the lowest scanning tilt. It can produce better results than using the separation index only.
Characterization of an EKO MS-711 spectroradiometer: aerosol retrieval from spectral direct irradiance measurements and corrections of the circumsolar radiation
Authors: García-Cabrera Rosa Delia , Cuevas-Agulló Emilio , Barreto África , Cachorro Victoria Eugenia , Pó Mario , Ramos Ramón , Hoogendijk Kees
Published: December 2019

Abstract. Spectral direct UV-Visible normal solar irradiance (DNI) measured with an EKO MS-711 spectroradiometer at the Izaña Atmospheric Observatory (IZO, Spain) has been used to determine aerosol optical depth (AOD) at several wavelengths (340, 380, 440, 500, 675 and 870 nm) between April and September 2019 that have been compared with synchronous AOD measurements from a reference Cimel-AERONET (Aerosol RObotic NETwork) sunphotometer. The EKO MS-711 has been calibrated at Izaña Observatory using the Langley-Plot method during the study period. Although this instrument has been designed for spectral solar DNI measurements, and therefore has a field of view (FOV) of 5° that is twice that recommended in solar photometry for AOD determination, the AOD differences compared against the AERONET Cimel reference instrument (FOV ∼ 1.2°), are fairly small. The comparison results between AOD Cimel and EKO MS-711 present a root mean square (RMS) of 0.013 (24.6 %) at 340, and 380 nm, and 0.029 (19.5 %) for longer wavelengths (440, 500, 675 and 870 nm). However, under relatively high AOD, near forward aerosol scattering might be significant because of the relatively large circumsolar radiation (CSR) due to the large EKO MS-711 FOV, resulting in a small but significant AOD underestimation in the UV range. The AOD differences decrease considerably when CSR corrections, estimated from LibRadtran radiative transfer model simulations, are performed, obtaining RMS of 0.006 (14.9 %) at 340 and 380 nm, and 0.005 (11.1 %) for longer wavelengths. The percentage of 2-minute synchronous EKO AOD–Cimel AOD differences within the World Meteorological Organization (WMO) traceability limits were ≥ 96 % at 500 nm, 675 nm and 870 nm with no CSR corrections. After applying the CSR corrections, the percentage of AOD differences within the WMO traceability limits increased to > 95 % for 380, 440, 500, 675 and 870 nm, while for 340 nm the percentage of AOD differences showed a poorer increase from 67 % to a modest 86 %.
Adsorption and Desorption studies of Delonix regiapods and leaves: Removal and recovery of Ni(II) and Cu(II) ions from aqueous solution
Authors: Babalola Bolanle M. , Babalola Adegoke O. , Akintayo Cecilia O. , Ayanda Olushola S. , Abimbade Sunday F. , Oseghe Ekemena O.
Published: December 2019

Abstract. In this study, the adsorption of Ni(II) and Cu(II) ions from aqueous solutions by powdered pods and leaves of Delonix regia was investigated by batch adsorption techniques. The effects of operating conditions such as pH, contact time, metal ions concentration and the presence of sodium ions interfering on the sorption process were investigated. The results obtained showed that the equilibrium sorption was attained within 30 min of interaction and the adsorption process followed the pseudo-second-order kinetic model for all the metal sorption with the exception of Cu(II) sorption on the leaves. The equilibrium data fitted well with both the Langmiur and Freundlich Isotherms; the desorption study revealed that the percentage of metal ions recovered from the pods were higher than the leaves at various concentration of nitric acid. This study has proven that Delonix regia biomass, an agro-waste could be used for removing Ni(II) and Cu(II) ions from wastewater.
AC characteristics of low-ohmic foil shunts influenced by eddy currents in the mounting body
Authors: Schönecker-Baußmann Mario
Published: December 2019

Abstract. The requirements for precision current-sensing shunts are getting more sophisticated due to further development of fast switch-mode converters and other high-frequency applications. Good AC characteristics are important both for industrial applications and for calibration standard purposes.
Low-ohmic foil shunts show excellent DC behavior, but the AC characteristics could be improved. The optimization of foil shunts towards better temperature independency and load stability in the range of a few parts per million per kelvin can lead to significant weaker AC performance. In this work, eddy currents in the mounting body are identified as a cause of the increasing real part of the shunt impedance at higher frequencies by means of a numerical field simulation.
Changes in flood damage with global warming on the eastern coast of Spain
Authors: Cortès Maria , Turco Marco , Ward Philip , Sánchez-Espigares Josep A. , Alfieri Lorenzo , Llasat Maria Carmen
Published: December 2019

Abstract. Flooding is one of the main natural hazards in the world and causes huge economic and human impacts. Assessing the flood damage in the Mediterranean region is of great importance, especially because of its large vulnerability to climate change. Most past floods affecting the region were caused by intense precipitation events; thus the analysis of the links between precipitation and flood damage is crucial. The main objective of this paper is to estimate changes in the probability of damaging flood events with global warming of 1.5, 2 and 3 ∘C above pre-industrial levels and taking into account different socioeconomic scenarios in two western Mediterranean regions, namely Catalonia and the Valencian Community. To do this, we analyse the relationship between heavy precipitation and flood-damage estimates from insurance datasets in those two regions. We consider an ensemble of seven regional climate model (RCM) simulations spanning the period 1976–2100 to evaluate precipitation changes and to drive a logistic model that links precipitation and flood-damage estimates, thus deriving statistics under present and future climates. Furthermore, we incorporate population projections based on five different socioeconomic scenarios. The results show a general increase in the probability of a damaging event for most of the cases and in both regions of study, with larger increments when higher warming is considered. Moreover, this increase is higher when both climate and population change are included.
When population is considered, all the periods and models show a clearly higher increase in the probability of damaging events, which is statistically significant for most of the cases. Our findings highlight the need for limiting global warming as much as possible as well as the importance of including variables that consider change in both climate and socioeconomic conditions in the analysis of flood damage.
A numerical sensitivity study of how permeability, porosity, geological structure, and hydraulic gradient control the lifetime of a geothermal reservoir
Authors: Bauer Johanna F. , Krumbholz Michael , Luijendijk Elco , Tanner David C.
Published: December 2019

Abstract. Geothermal energy is an important and sustainable
resource that has more potential than is currently utilized. Whether or not
a deep geothermal resource can be exploited, mostly depends on, besides
temperature, the utilizable reservoir volume over time, which in turn
largely depends on petrophysical parameters. We show, using over 1000 (n=1027) 4-D finite-element models of a simple
geothermal doublet, that the lifetime of a reservoir is a complex function
of its geological parameters, their heterogeneity, and the background
hydraulic gradient (BHG). In our models, we test the effects of porosity,
permeability, and BHG in an isotropic medium. Furthermore, we simulate the
effect of permeability contrast and anisotropy induced by layering,
fractures, and a fault. We quantify the lifetime of the reservoir by
measuring the time to thermal breakthrough, i.e. how many years pass before
the temperature of the produced fluid falls below the 100 ∘C
threshold. The results of our sensitivity study attest to the positive
effect of high porosity; however, high permeability and BHG can combine to
outperform the former. Particular configurations of all the parameters can
cause either early thermal breakthrough or extreme longevity of the
reservoir. For example, the presence of high-permeability fractures, e.g.
in a fault damage zone, can provide initially high yields, but it channels
fluid flow and therefore dramatically restricts the exploitable reservoir
volume. We demonstrate that the magnitude and orientation of the BHG,
provided permeability is sufficiently high, are the prime parameters that
affect the lifetime of a reservoir. Our numerical experiments show also that
BHGs (low and high) can be outperformed by comparatively small variations in
permeability contrast (103) and fracture-induced permeability
anisotropy (101) that thus strongly affect the performance of
geothermal reservoirs.
Radar measurements of blowing snow off a mountain ridge
Authors: Walter Benjamin , Huwald Hendrik , Gehring Josué , Bühler Yves , Lehning Michael
Published: December 2019

Abstract. Modelling and forecasting wind-driven redistribution of snow in mountainous regions with its implications on avalanche danger, mountain hydrology or flood hazard is still a challenging task often lacking in essential details. Measurements of drifting and blowing snow for improving process understanding and model validation are typically limited to point measurements at meteorological stations, providing no information on the spatial variability of horizontal mass fluxes or even the vertically integrated mass flux. We present a promising application of a compact and low-cost radar system for measuring and characterizing larger scale (hundreds of meters) snow redistribution processes, specifically blowing snow off a mountain ridge. These measurements provide valuable information of blowing snow velocities, frequency of occurrence, travel distances and turbulence characteristics. Blowing snow velocities measured with the radar are validated by comparison against wind velocities measured with a 3D ultrasonic anemometer. A minimal blowing snow travel distance of 60–120 m is reached in 10–20 % of the time during a snow storm, depending on the strength of the storm event. The relative frequency of transport distances decreases exponentially above the minimal travel distance, with a maximum measured distance of 280 m. The travel distance is linearly correlated with the wind velocity, revealing a threshold for snow particle entrainment and transport of 6.75 m s−1. Turbulence statistics did not allow to draw a conclusion on whether low-level low-turbulence jets or highly turbulent gusts are more effective in transporting blowing snow over longer distances. Drone-based photogrammetry measurements of the spatial snow height distribution revealed increased snow accumulation in the lee of the ridge being the result of the measured local blowing snow conditions.
Museografías de artistas 'd’après' el cubo blanco. Desalojos, tránsitos y entropías del vacío
Authors: Blasco Selina
Published: December 2019

El texto parte de la relación que establece Brian O’Doherty, en el célebre ensayo en el que acuñó el término White Cube, entre la invisibilidad del arte y la visibilidad del espacio expositivo. Tirando del hilo de esta idea se plantean una serie de reflexiones, especulativas y nada concluyentes, sobre prácticas artísticas que exponen la galería y el museo literalmente vacíos o que impiden y obstruyen el acceso a las obras. Perseguir las obras que han sido expulsadas nos lleva a los museos portátiles y a proponer una vuelta de tuerca más sobre la transitoriedad esencial del museo, la condición errante de las obras de arte y la imaginación de nuevos espacios en los que es o sería posible situarlas. También a la provocación que supone el gesto retórico del museo vacío en situaciones reales de escasez y en determinadas acciones que, desde la vida, se han emprendido para llenarlo.
Splendor Fidei: El proyecto del Museo Diocesano de Segovia
Authors: Casas Hernández Mariano
Published: December 2019

La reciente rehabilitación del Palacio Episcopal de Segovia ha supuesto la renovación y reforma del museo diocesano. El artículo parte desde los precedentes para exponer el desarrollo ulterior y los puntos principales del proyecto museográfico que recibe el título de Splendor Fidei.
La colección de tapices y alfombras del marqués de Linares
Authors: Vian Laura De la Calle
Published: December 2019

El palacio de Linares de Madrid, hoy sede de la Casa de América, fue a finales del siglo XIX la espléndida residencia de D. José de Murga y Reolid, marqués de Linares, vizconde de Llanteno y senador del reino. Este influyente aristócrata reunió en su palacio madrileño una rica colección de tapices de origen francés que testimonia, por una parte, el declive de esta industria artística en España y, por otra, la pervivencia de un estilo decorativo que se resistía a morir a pesar de los síntomas renovadores que empezaban a manifestarse en la misma Francia.
El poblamiento de la Edad del Hierro en el suroeste de la Meseta Norte
Authors: Rodríguez-Hernández Jesús
Published: December 2019

En este artículo se analiza la dinámica del poblamiento en el suroeste de la cuenca del Duero a lo largo de la Edad del Hierro (ca. 950-50 cal AC). Para ello, se examinan los diferentes patrones de poblamiento que se pueden distinguir en cada fase, así como las transformaciones y continuidades detectadas en el poblamiento durante este periodo. La Edad del Hierro en esta zona supone la plena sedentarización de los grupos humanos, que se apropiarán de manera efectiva del paisaje, a través de la construcción de poblados permanentes y necrópolis, así como de la configuración de los campos de cultivo y de las zonas de pastos. En este periodo asistimos a la emergencia de aldeas estables, que en un momento determinado se monumentalizan mediante el levantamiento de imponentes sistemas defensivos y, en algunos casos, dan origen a las primeras ciudades (u oppida) de esta zona. A nivel demográfico, la Edad del Hierro parece corresponderse con un momento de crecimiento poblacional que posibilitaría la transformación de aldeas ocupadas por unos pocos cientos de efectivos en ciudades habitadas por miles de personas.
Genius Hour: una estrategia metodológica innovadora para la clase de Español como Lengua Extranjera
Authors: Bieger Morales Clara , Caballero-García Presentación Ángeles
Published: December 2019

La propuesta de innovación educativa que se presenta en este trabajo, llamada Genius Hour, es una aportación del mundo empresarial que queremos utilizar como estrategia de aprendizaje innovadora en la clase de Español como Lengua Extranjera (ELE). Genius Hour se encuadra dentro la metodología del aprendizaje basado en proyectos (ABP), en el que la investigación juega un papel fundamental. Está pensada para ser implementada en un contexto escolar multicultural de alumnos adolescentes. Cuenta aspectos básicos de cómo puede ser desarrollada en el aula de ELE, beneficios esperados a partir de la fundamentación teórica y la experiencia profesional, y termina señalando sus vías de continuidad, entre las que destacamos la contrastación empírica de esta experiencia exitosa de empresa y de cambio propuesto para la enseñanza del español.
Claves en la enseñanza de la lengua minorizada. Acercamiento al caso del aragonés
Authors: Campos Bandrés Iris Orosia
Published: December 2019

El aragonés es una de las lenguas propias de Aragón, la cual ha sufrido un proceso de minorización a lo largo de su historia y hasta nuestros días. A pesar de ello, ya han pasado dos décadas desde que se introdujo por primera vez en las aulas de Educación Infantil y Educación Primaria. Sin embargo, existen escasas investigaciones sobre la evolución de la enseñanza-aprendizaje del aragonés y sobre su situación actual en las escuelas. Con la finalidad de realizar una aportación en el ámbito de la enseñanza del aragonés, así como en el de la didáctica de las lenguas minorizadas, desarrollamos una investigación cualitativa bajo el diseño del estudio de diarios. Las aportaciones de los 32 alumnos participantes muestran la escasa competencia alcanzada por el alumnado de resultas del obsoleto modelo implementado. Además, de los datos emerge la presencia tanto de un factor de tipo afectivo como de una visión diglósica del aragonés que determinan las representaciones del alumnado respecto a esta lengua. En cualquier caso, la valoración de las propuestas didácticas de los docentes es considerablemente positiva y resulta reiterativa la solicitud de un espacio mayor para la lengua propia en el ámbito escolar.
Principios didácticos para la enseñanza de vocabulario en español como lengua de aprendizaje del alumnado inmigrante
Authors: Sanjuán Álvarez Marta , Del Moral Barrigüete Cristina
Published: December 2019

La comprensión de la naturaleza de la competencia léxica debe servir de guía para enfocar su enseñanza de una manera más sistemática. En este artículo se establecen unos principios didácticos generales a partir de los  diversos componentes que la integran, enfocados a una enseñanza más eficaz del léxico del español como segunda lengua del alumnado inmigrante  en el contexto escolar, atendiendo a sus necesidades de aprendizaje. El objetivo es reforzar la adquisición del léxico con objetivos, contenidos y estrategias metodológicas claras que incluyan actividades sobre los procesos de comprensión, almacenamiento y recuperación para el uso progresivo del vocabulario académico en español. Para concluir este artículo, se ofrece una secuenciación didáctica de actividades para el desarrollo de la comprensión lectora y la competencia léxica, dirigida a alumnos inmigrantes, a partir de un texto escolar de Primaria.
La ortografía en el ámbito universitario: una realidad que exige la reflexión del alumnado y la implicación del profesorado
Authors: Suárez Ramírez Sergio , Suárez Muñoz Ángel , Guisado Sánchez Inmaculada , Suárez Ramírez Miriam
Published: December 2019

Hasta hace poco tiempo hemos creído que los errores ortográficos en los que incurrían los estudiantes estaban circunscritos a los niveles educativos no universitarios. Pero cada vez es más evidente que también están presentes entre el alumnado que, se supone, debería tenerlos superados.

Los escritos de diversa índole que produce el alumnado universitario (trabajos académicos, exámenes, consultas o tutorías online, etc.) están plagados de faltas de ortografía que atentan contra el dominio de la competencia en comunicación lingüística e introducen una tarea más para el profesorado encargado de su formación, que hasta ahora habíamos eludido y que ya no justifica, siquiera, atribuirlos a la responsabilidad del profesorado de las etapas educativas previas a la Universidad.

Aun siendo grave esta panorámica, lo es más cuando analizamos la escritura del alumnado universitario de los Grados de Maestro (Infantil y Primaria), que se “forma” para dedicarse a la enseñanza y a la transmisión de contenidos educativos a niños y jóvenes (entre 6 y 16 años).

Como profesores universitarios que padecemos esta realidad queremos transmitir la necesidad, cada vez más imperiosa, de abordar el asunto en las aulas universitarias. El estudio llevado a cabo confirma que no es solo el desconocimiento, sino la falta de atención e interés que muestran los universitarios a la hora de aplicar las reglas ortográficas en sus escritos, las causas principales de tantos errores.

Por eso, creemos que nuestra actuación comienza analizando y describiendo los errores ortográficos de nuestros alumnos para hacerles reflexionar sobre ellos y propiciar una escritura académica correcta.
Sobre la aproximación a la obra dramática de Calderón de la Barca en la Educación Secundaria: del currículo al libro de texto
Authors: Ulla Lorenzo Alejandra
Published: December 2019

El objetivo del presente artículo consiste en proponer una aproximación crítica a la perspectiva desde la cual se estudia la obra del dramaturgo Calderón de la Barca en la Educación Secundaria. Para ello partiremos de las indicaciones que nos ofrece el currículo estatal, publicado en el Real Decreto 1105/2014 por el que se establece el currículo básico de la Educación Secundaria Obligatoria y del Bachillerato, a través de los contenidos de la materia Lengua Castellana y Literatura. Desde este punto examinaremos un corpus de veinticinco libros de texto de diferentes editoriales españolas publicados entre 2015 y 2016, con la finalidad de analizar cómo se enfoca el proceso de enseñanza-aprendizaje de la obra de este autor en el primer ciclo de la ESO y en el primer curso de Bachillerato, la etapa y curso a las que se asocia la didáctica de la literatura española del Siglo de Oro.
Teatro para jóvenes: teoría y temática en la sociedad del siglo XXI
Authors: Morón Antonio César
Published: December 2019

El teatro para jóvenes sigue siendo un género poco tratado y menos estudiado por los investigadores, pues muchas veces es incluido dentro del genérico teatro infantil. Desde este artículo se establecerán una serie de perspectivas teóricas y temáticas que ayuden a definir y comprender la compleja existencia de un género al que en muchas ocasiones se le ha negado su misma posibilidad de existencia.
Elizabeth’s “Seclusion”: A Veiled Reference to Her Bold Belief?
Authors: Powell Denise
Published: December 2019

The narrative significance of Elizabeth’s “hiding” for five months in response to her pregnancy (Luke 1:24) has not been adequately explored. Some have proposed that Elizabeth’s hiding serves to keep her pregnancy secret until the time of the angel’s annunciation to Mary. This article concurs but argues that Elizabeth’s action is also a response of faith to the angel’s prophesy regarding her pregnancy. Clues in the narrative emphasize that Elizabeth was both past her childbearing years and that she hid herself soon after the conception of her baby. As a postmenopausal woman, however, she did not have the telltale pregnancy marker of a missed menstrual period. Thus, she hid herself before she had any physical evidence of pregnancy. Elizabeth, then, acted on her belief that “there will be a fulfillment of the things that were said from the Lord” (1:45), setting up a contrast with her unbelieving husband and an alignment with her believing relative Mary. This is the first of many contrasts in the narrative between characters who respond with belief and those who do not. Luke’s reference to Elizabeth’s “hiding herself” for five months is not an insignificant narrative detail but one that presents Elizabeth as the first of many unexpected characters of faith in Luke’s account of the “things fulfilled among us” (1:1).
The Wirkungsgeschichte of Henry Joel Cadbury as an Objective Historian: An Exploration of America’s Premiere Luke–Acts Scholar
Authors: Padilla Osvaldo
Published: December 2019

Henry Joel Cadbury, despite having written in the early to mid-20th century, remains one of the giants in the field of Luke–Acts. His conclusions are still influential to this day. This article argues that one of the reasons Cadbury is still so influential—apart from the fact that he produced lexical and philological work of the first rate—is that his work is viewed as purely historical, not “tainted” by theological aims or influences. The argument in this article is that a careful reading of The Making of Luke–Acts in combination with Cadbury’s paper “The Quaker Approach to History” demonstrates that the scope of The Making of Luke–Acts was governed by a theological approach to the Bible. While this in itself is not negative, it should warn us away from accepting Cadbury’s historical conclusions on Acts as more objective than confessing scholars, because the latter work within a theological confession and Cadbury supposedly does not.
The History, and the Future, of Flannery O'Connor Studies
Authors: Gentry Marshall Bruce
Published: December 2019

Robert C. Evans's reception history surveys over sixty years of criticism on Flannery O'Connor, using as his headings aesthetics, religion, history, the South, race, and gender. Evans then recommends that future O'Connor criticism should also treat such topics as death and family, use archetypal approaches, and emphasize O'Connor's artistry. The study's format necessarily creates repetition, but Evans is generally thorough, his presentation of others' arguments fair-minded.
Population structure of the scleractinian coral Montastraea cavernosa in southeast Florida
Authors: Dodge DL , Studivan MS , Eckert RJ , Chei E , Beal J , Voss JD
Published: December 2019

The persistence of scleractinian coral populations on the Florida Reef Tract (FRT) is controlled in part by metapopulation dynamics and larval dispersal. Nine polymorphic microsatellite loci were analyzed to characterize contemporary population structure and gene flow as well as historical
migration rates of Montastraea cavernosa at five sites off Martin, Palm Beach, and Broward counties in southeast Florida. The sampled populations demonstrated evidence of genetic isolation by distance over a geographic range of 85 km. Population genetic structure was divided into two
genetic clusters, northern and southern, with admixture along a latitudinal gradient. Historical migration models indicated likely panmixia throughout all sites sampled, identifying a potential reduction in connectivity among the sampled populations through time. Though M. cavernosa
populations demonstrated evidence of historical connectivity, contemporary patterns of isolation by distance suggest that effective management will require localized actions to maximize the likelihood of sustaining individual populations in the northern FRT. Given the results of this study,
coupled with recent coral mortality events in the region, we recommend regional conservation efforts and management initiatives throughout southeast Florida within a more comprehensive FRT-wide management network.
RELAÇÃO DOS ÍNDICES DE ACIDENTES DO TRABALHO NO ESPÍRITO SANTO E BRASIL DE 2007 A 2017 NA CONSTRUÇÃO DE EDIFÍCIOS
Authors: Bermudes Wanderson Lyrio , Fontana Kleidismar Ramos
Published: December 2019

Esta pesquisa apresenta os dados estatísticos de acidentes do trabalho nas atividades de construção de edifício no Estado do Espírito Santo e no Brasil para avaliar a evolução desses indicadores no período analisado. A pesquisa utilizou dados dos acidentes de trabalho disponíveis no Anuário Estatístico de Acidentes do Trabalho da Previdência Social referente aos períodos de 2007 a 2017 e estudo bibliográfico. No intervalo pesquisado, ocorreram no Brasil, 197.312, acidentes do trabalho (típico, trajeto ou doença do trabalho) nas atividades de construção de edifício. Os riscos são originados das máquinas e equipamentos, trabalho braçal e em altura, além das condições do ambiente interno e externo. Como resultado essa pesquisa demonstrou que o Estado do Espírito Santo, possui uma quantidade de registro de acidente que contribuiu em 5,48% do total de acidentes no Brasil em 2008 e apresentou em 2017 o índice de 2,19%, indicando queda dessa participação. Quando analisado a Taxa de Incidência de acidente de típico dessa ocorrência o Estado possui indicador maior que a média nacional durante o período pesquisado, com tendência de redução. No que se refere a doença do trabalho, nota-se uma redução dessa incidência no intervalo da pesquisa. Reduções essas que podem ser justificadas pela aplicação de medidas de controle e ações governamentais. Registra-se o acréscimo dos índices dos acidentes de trajeto nesse segmento, que para sua redução é necessário a adoção de políticas públicas que fogem da capacidade de gestão da empresa.
CONTROLE ESTATÍSTICO DA QUALIDADE: UMA APLICAÇÃO EM UMA INDÚSTRIA TÊXTIL
Authors: Santana Nathaly Silva de , Brito Arthur Arcelino de , Palhares Rafael De Azevedo , Lima Alessandro Jackson Teixeira de , Oliveira Mariana Simião Brasil de
Published: December 2019

A exigência por produtos e serviços de qualidade vem crescendo a cada dia, e as empresas devem se adequar para conquistar os clientes e melhorar seu desempenho no que diz respeito à qualidade e à produtividade. Na busca por maior qualidade na produção de produtos e serviços, o controle estatístico do processo (CEP) apresenta benefícios na sua utilização, possibilitando avaliação eficiente emonitoramento do processo. O presente artigo apresenta uma análise da condição do atual estado do processo confecção de roupas femininas que segue a filosofia slow fashion, através da utilização dos conceitos e ferramentas do controle estatístico do processo, especificamente os gráficos de controle. A partir da confecção dos gráficos de controle do tipo p foi possível identificar que o processo produtivo se encontra fora de controle estatístico. Logo, a empresa parece não ter implementado a filosofia slow fashion de modo satisfatório, pois os gráficos de controle apontam para um processo instável, e que, desse modo, a qualidade não pode ser garantida ou assegurada em todas as etapas da produção.
Créditos v.7 n.12
Authors: Pilz Thaisa Lana
Published: December 2019

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Determination of soluble solids content in Prunus avium by Vis/NIR equipment using linear and non-linear regression methods
Authors: Lafuente Victoria , Herrera Luis J. , Val Jesús , Ghinea Razvan , Negueruela Angel I.
Published: December 2019

Aim of study: Developing models to determine soluble solids content (SSC) in cherry trees by means of Vis/NIR spectroscopy.Area of study: The Spanish Autonomous Community of Aragón (Spain).Material and methods: Vis/NIR spectroscopy was applied to Prunus avium fruit ‘Chelan’ (n=360) to predict total SSC using a range 400-2420 nm. Linear (PLS) and nonlinear (LSSVM) regression methods were applied to establish prediction models.Main results: The two regression methods applied obtained similar results (Rcv2=0.97 and Rcv2=0.98 respectively). The range 700-1060 nm attained better results to predict SSC in different seasons. Forty variables selected according to the variable selection method achieved Rcv2 value, 0.97 similar than full range.Research highlights: The development of this methodology is of great interest to the fruit sector in the area, facilitating the harvest for future seasons. Further work is needed on the development of the NIRS methodology and on new calibration equations for other varieties of cherry and other species.