bluuebunny/crossref_metadata_2025 huggingface dataset:
Porting the WAVEWATCH III (v6.07) Wave Action Source Terms to GPU
Authors: Ikuyajolu Olawale James , Van Roekel Luke , Brus Steven R. , Thomas Erin E. , Deng Yi
Published: June 2022

Abstract. Surface gravity waves play a critical role in several processes, including mixing, coastal inundation and surface fluxes. Despite the growing literature on the importance of ocean surface waves, wind-wave processes have traditionally been excluded from Earth system models due to the high computational costs of running spectral wave models. The Next Generation Ocean Model Development in the DOE’s (Department of Energy) E3SM (Energy Exascale Earth System Model) project partly focuses on the inclusion of a wave model, WAVEWATCH III (WW3), into the E3SM. WW3, which was originally developed for operational wave forecasting, needs to be computationally less expensive before it can be integrated into ESMs. To accomplish this, we take advantage of heterogeneous architectures at DOE leadership computing facilities and the increasing computing power of general-purpose graphics processing units (GPU). This paper identifies the wave action source terms as the most computationally intensive module in WW3 and then accelerates them via GPU. Using one GPU, our experiments on two computing platforms, Kodiak (P100 GPU & Intel(R) Xeon(R) CPU E5-2695 v4) and Summit (V100 GPU & IBM POWER9), show speedups of up to 2.4x and 6.6x respectively over one MPI task on CPU. Using different combinations of multiple CPUs and GPUs, we obtained an average speedup of 2x and 4x on Kodiak and Summit. We also discuss how the trade off between occupancy, register and latency affects the GPU performance of WW3.
Improved Soil Evaporation Remote Sensing Retrieval Algorithms and Associated Uncertainty Analysis on the Tibetan Plateau
Authors: Feng Jin , Zhang Ke , Zhan Huijie , Chao Lijun
Published: June 2022

Abstract. Actual evapotranspiration (ET) is the key link between water and energy cycles. However, accurate evaporation estimation in alpine barren areas remains understudied. In this study, we aimed to improve the satellite-driven Process-based Land Surface ET/Heat fluxes algorithm (P-LSH) by introducing two frameworks for quantifying moisture constraints to ET, and to test the applicability of satellite soil moisture and precipitation data for improving ET retrieval. As a result, it formed two improved P-LSH algorithms. The first framework normalizes the surface soil moisture to represent moisture stress, while the second framework takes the ratio of cumulative precipitation to cumulative equilibrium evaporation to quantify soil water stress. We systematically assessed the performances of the two improved P-LSH algorithms and six existing remote sensing ET retrieval algorithms on two barrens-dominated basins of the Tibetan Plateau using reconstructed ET estimates derived from the terrestrial water balance method as a benchmark. The two frameworks largely improved the performance of the P-LSH algorithm and showed better performance in both basins (root mean square error (RMSE) = 7.36 and 7.76 mm month-1; R2 = 0.86 and 0.87), resulting in a higher simulation accuracy than all six existing algorithms. We used five soil moisture and five precipitation datasets to investigate the impact of moisture constraint uncertainty on the improved P-LSH algorithm. The ET estimates of the improved P-LSH algorithm, driven by the GLDAS_Noah soil moisture, performed best compared with those driven by other soil moisture and precipitation datasets, while ET estimates driven by various precipitation datasets generally showed a high and stable accuracy. These results suggest that high-quality soil moisture can optimally express moisture supply to ET, and that more accessible precipitation data can serve as a substitute for soil moisture as an indicator of moisture status for its robust performance in barren evaporation.
Atmospheric electricity at Lerwick Geophysical Observatory
Authors: Harrison R. Giles , Riddick John C.
Published: June 2022

Abstract. Atmospheric electricity measurements were made at Lerwick Observatory, Shetland, between 1925 and 1985. These principally provide a long series of hourly Potential Gradient (PG) measurements at an unpolluted site, but also include air-earth current density measurements during the late 1970s and early 1980s. The methodology employed at Lerwick to provide the PG measurements is described. There is renewed international interest in such measurements, not least because the Lerwick PG data have been shown to be linked to Pacific Ocean temperature anomalies. The past measurements described have characterised the Lerwick site exceptionally well in atmospheric electrical terms, which also indicate its suitability for future similar measurements.
Site-selective generation of lanthanoid binding sites on proteins using 4-fluoro-2,6-dicyanopyridine
Authors: Mekkattu Tharayil Sreelakshmi , Mahawaththa Mithun C. , Feintuch Akiva , Maleckis Ansis , Ullrich Sven , Morewood Richard , Huber Thomas , Nitsche Christoph , Goldfarb Daniella , Otting Gottfried
Published: June 2022

Abstract. The paramagnetism of a lanthanoid tag site-specifically installed on a protein provides a rich source of structural information accessible by nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR) spectroscopy. Here we report a lanthanoid tag that reacts selectively with cysteine or selenocysteine with formation of a (seleno)thioether bond and a short tether between lanthanoid ion and protein backbone. The tag is assembled on the protein in three steps, comprising (i) reaction with 4-fluoro-2,6-dicyanopyridine (FDCP), (ii) reaction of the cyano groups with α-cysteine, penicillamine or β-cysteine to complete the lanthanide chelating moiety and (iii) titration with a lanthanoid ion. FDCP reacts much faster with selenocysteine than cysteine, opening a route for selective tagging in the presence of solvent-exposed cysteine residues. Loaded with Tb3+ and Tm3+ ions, pseudocontact shifts were observed in protein NMR spectra, confirming that the tag delivers good immobilisation of the lanthanoid ion relative to the protein, which was also manifested in residual dipolar couplings. Completion of the tag with different 1,2-amino thiol compounds resulted in different magnetic susceptibility tensors. In addition, the tag proved suitable for measuring distance distributions in double electron–electron resonance experiments after titration with Gd3+ ions.
Debris flow velocity and volume estimations based on seismic data
Authors: Schimmel Andreas , Coviello Velio , Comiti Francesco
Published: June 2022

Abstract. The estimation of debris flow velocity and volume is a fundamental task for the development of early warning systems and the design of control structures and of other mitigation measures. Debris flow velocity can be calculated using seismic data recorded at two monitoring stations located along the channel, and previous analysis of the seismic energy produced by debris flows showed that the peak discharge of each surge can be estimated based on the maximum amplitude of the seismic signal. This work provides a first approach for estimating the total volume of debris flows from the integrated seismic energy detected with simple, low-cost geophones installed along a debris flow channel. The developed methods were applied to seismic data collected from 2014 to 2018 in three different test sites in the European Alps: Gadria and Cancia (Italy) and Lattenbach (Austria). An adaptable cross-correlation time window was used to calculate the velocity of the different surges, which can offer a better estimation of the velocity compared to a constant window length. The analyses of the seismic data of 14 debris flows show the strong control of the sampling rate and of the inter-station distance on velocity estimation. A linear relationship between the squares of seismic amplitudes – a proxy for seismic energy – and independent measurements of the debris flow volume is proposed for a first-order estimation of the latter. Uncertainties in the volume estimations are controlled by flow properties – such as liquid or viscous surges generating low-amplitude signals and thus underestimating the calculated volume – but in most cases (9 out of 11 events of the test dataset of the Illgraben basin, CH) the order of magnitude of the debris flow volume is correctly predicted.
Quasi-steady circulation regimes in the Baltic Sea
Authors: Liblik Taavi , Väli Germo , Salm Kai , Laanemets Jaan , Lilover Madis-Jaak , Lips Urmas
Published: June 2022

Abstract. Circulation plays an essential role in the creation of
physical and biogeochemical fluxes in the Baltic Sea. The main aim of the
work was to study the quasi-steady circulation patterns under prevailing
forcing conditions. A total of 6 months of continuous vertical profiling and fixed-point measurements of
currents, two month-long underwater glider surveys, and numerical modeling were
applied in the central Baltic Sea. The vertical structure of currents was
strongly linked to the location of the two pycnoclines: the seasonal
thermocline and the halocline. The vertical movements of pycnoclines and
velocity shear maxima were synchronous. The quasi-steady circulation
patterns were in geostrophic balance and highly persistent. The persistent
patterns included circulation features such as upwelling, downwelling, and
boundary currents, as well as a sub-halocline gravity current. The patterns had a
prevailing zonal scale of 5–60 km as well as considerably higher magnitude and
different direction than the long-term mean circulation pattern. A northward (southward) geostrophic boundary current in the upper layer was
observed along the eastern coast of the central Baltic in the case of
southwesterly (northerly) wind. The geostrophic current at the boundary was
often a consequence of wind-driven, across-shore advection. The sub-halocline quasi-permanent gravity current with a width of 10–30 km
from the Gotland Deep to the north over the narrow sill separating the
Fårö Deep and Nothern Deep was detected in the simulation, and it was
confirmed by an Argo float trajectory. According to the simulation, a strong
flow, mostly to the north, with a zonal scale of 5 km occurred at the sill.
This current is an important deeper limb of the overturning circulation of
the Baltic Sea. The current was stronger with northerly winds and restricted
by the southwesterly winds. The circulation regime had an annual cycle due to seasonality in the
forcing. The boundary current was stronger and more frequent northward during
the winter period. The sub-halocline current towards the north was strongest
in March–May and weakest in November–December.
A Collection of Wet Beam Models for Wave-Ice Interaction
Authors: Tavakoli Sasan , Babanin Alexander
Published: June 2022

Abstract. Theoretical models for the prediction of decay rate and dispersion process of gravity waves traveling into an integrated ice cover are introduced. The term “wet beam”  is chosen to refer to these models as they are developed by incorporating water-based radiation forces, including heave damping and added mass, which are absent in most conventional models. Presented wet beam models differ from each other according to the rheological behavior considered for the ice cover. Two-parameter viscoelastic solid models accommodating Kelvin-Voigt (KV) and Maxwell mechanisms along with a one-parameter elastic solid model are used to describe the rheological behavior of the ice layer. Quantitative comparison between the landfast ice field data and model predictions suggests that wet beam models, adopted with both KV and Maxwell mechanisms, predict the decay rate more accurately compared to a dry beam model. Furthermore, the wet beam models, adopted with both KV and Maxwell mechanisms, are found to construct decay rates of disintegrated ice fields, though they are built for a continuous ice field. Finally, it is found that wet beam models can accurately construct decay rate curves of freshwater ice, though they cannot predict the dispersion process of waves accurately. To overcome this limitation, three-parameter solid models, termed Standard Linear Solid (SLS) mechanisms, are suggested to be used to re-formulate the dispersion relationship of wet beam models, which were seen to construct decay rates and dispersion curves of freshwater ice with an acceptable level of accuracy. Overall, the two-parameters wet beam dispersion relationships presented in this research are observed to predict decay rates and dispersion process of waves travelling into actual ice covers, though three-parameter wet beam models were seen to reconstruct the those of freshwater ice formed in a wave flume.
Robust poleward jet shifts in idealised baroclinic-wave life-cycle experiments with noisy initial conditions
Authors: Jäger Felix , Rupp Philip , Birner Thomas
Published: June 2022

Abstract. Idealised baroclinic-wave life-cycle experiments are a widely used tool to study fundamental characteristics of mid-latitude baroclinic instability. A typical life-cycle evolves from an initialised baroclinically unstable jet through an exponential growth phase of a particular unstable wave mode, followed by wave breaking during the mature phase, and wave-mean flow interaction driving a jet shift during the decay phase. Many authors distinguish between life-cycles with predominantly anticyclonic (LC1) and cyclonic (LC2) wave breaking and the transition between the two flavours is typically controlled via the strength of cyclonic meridional wind shear in the initial conditions. While baroclinic wave growth has traditionally been triggered via a specified initial perturbation with fixed zonal wave number, this study extends the concept of baroclinic-wave life-cycles by analysing the influence of random initial perturbations without any preferred zonal dependency on the life-cycle evolution. We find that the growth phase shows a robust LC1-LC2 distinction as a function of initialised meridional shear, while a preference for LC1-like characteristics is observed during the decay phase for all life-cycles with non-monochromatic initial perturbations. In particular, the persistent cut-off cyclones that typically form for LC2 initialisations are found to eventually become unstable – the earlier during the life-cycle the stronger the initial noise perturbations. All non-monochromatic life-cycles result in a poleward jet shift in their final state, regardless of the strength of the initial shear. Consistently, anticyclonic wave breaking tends to be predominant during the mature and decay phases, even for LC2 initialisations. Equatorward jet shifts associated with cyclonic wave breaking still exist, although purely as a transient interim state. We show that wave-wave interactions resulting from the initialised random wave spectrum play an important role during all phases of the life-cycle.
Design and Implementation of an IoT-Based Electric Motor Vibration and Temperature Disruption Handling System
Authors: Sidik Aryo De Wibowo Muhammad , Himawan Kusumah Ilman , Suryana Anang , Edwinanto  , Artiyasa Marina , Pradiftha Junfithrana Anggy
Published: June 2022

Faults in three-phase electric motors often occur in power plants. Unfortunately, the disturbances are unpredictable and reduce unit performance. This paper presents an Internet of Things (IoT) based intrusion handling system for secure and economic data communication in industrial fields. The build system can monitor and control with FLM (First Line Maintenance). FLM is a minor corrective maintenance activity carried out while the unit is operating with the provision of simple equipment. Device design and testing using the ESP8266 microcontroller module to obtain motor vibration, current, and temperature information for motor conditions supported by the application as a user interface. The result prevents further damage to the electric motor by adding an external fan and a grease pump that serves for additional engine cooling. This research contributes to improving the performance of the generator at PT. Indonesia Power UJP West Java II Palabuhanratu is one of the steam power plants in West Java, Indonesia
Outcomes of a Teaching Experiment
Authors:   Queen's University of Belfast, Nicholson James
Published: June 2022

Students traditionally find the underlying concepts in this area difficult to grasp. In collaboration with others I have been involved in developing activities exploring variation within and between samples from various distributions, and exploring properties of estimators and of confidence intervals. This paper will illustrate some of these materials, and discuss the rationale for the approach employed. Evaluation copies of the materials will be available for delegates to take away with them.
Soluciones digitales para profesores en apuros: Herramientas y recursos tecnológicos para dinamizar el aula virtual
Authors: Manzanares Triquet Juan Carlos , Moya García María
Published: June 2022

En un mundo ya de por sí subyugado a las nuevas tecnologías, la situación pandémica derivada de la COVID-19 ha hecho aún más evidente la necesidad de incorporar instrumentos y recursos TIC a nuestra práctica educativa. En este sentido, la red nos ofrece un amplísimo abanico de posibilidades para crear una experiencia pedagógica digital completa. Sin embargo, es precisamente la multiplicidad y la heterogeneidad de aplicaciones didácticas y plataformas virtuales las que pueden abrumar a un profesorado al que apenas se le han otorgado el tiempo y las herramientas necesarias para adaptarse a un escenario de enseñanza virtual prácticamente utópico poco tiempo atrás. Este artículo pretende ser un apoyo para todos aquellos docentes que han tenido que asumir la enseñanza online en tiempo récord, con el propósito de facilitarles los mecanismos esenciales para simplificar su traslación a dicho medio.
Metodologías activas de enseñanza durante la pandemia de COVID-19: Estudio de un caso de composición musical a distancia
Authors: Roda-Segarra Jacobo , Mengual-Andrés Santiago
Published: June 2022

Las medidas adoptadas por los gobiernos para controlar la expansión del virus COVID-19, como el distanciamiento social y los confinamientos domiciliarios, tuvieron una implicación directa en los centros educativos, haciendo que se tuviera que cambiar, en un breve lapso de tiempo, de una formación presencial a otra a distancia. Tanto las sesiones prácticas como las metodologías activas, que se basan en una interacción entre alumnos y docentes, fueron especialmente afectadas por estas medidas. El presente artículo lleva a cabo un estudio de caso único descriptivo sobre la implementación en la modalidad a distancia de un proyecto de «Educación artística» en 6º de Educación primaria, para lo que se ha analizado el contexto del grupo en relación a las TIC, se ha documentado el proyecto y se han descrito las interacciones virtuales entre alumnos y docente. Los resultados muestran que los estudiantes apenas tuvieron dificultades en el uso de la plataforma digital, al haber participado en un proyecto previo de blended learning. Sin embargo, tuvieron problemas con el software específico. La solución aportada por el docente, basada en Flipped Classroom, no tuvo un gran impacto como pudo comprobarse tras el análisis de las métricas de visualización. También se ha identificado que todas las interacciones se realizaron a través de emails y comentarios en la plataforma digital y que estas se redujeron significativamente conforme se avanzaba en el cronograma del proyecto.
Análisis de los desafíos dentro del contexto de la educación y la lectura durante la pandemia, en la prensa internacional de ámbito hispánico
Authors: Saiz de Lobado Ester , García- Delgado Belén
Published: June 2022

En este artículo se presenta el análisis exploratorio de un corpus de 117 noticias, recuperadas a través de la base de datos Factiva, que se publicaron en prensa en español, desde marzo de 2020 a mayo de 2021, sobre el efecto de la pandemia COVID-19 en la educación y la adquisición de competencias y hábitos lectores. La digitalización forzosa, que ha afectado al desarrollo de la competencia lectora, ha puesto de relieve nuevas problemáticas relacionadas con el acceso desigual a la conectividad y a la tecnología, así como problemáticas relacionadas con desigualdades endémicas que han afectado tanto a discentes, como a docentes y a familias. Para llevar a cabo el análisis se ha adoptado la perspectiva de los estudios críticos del discurso, que se ha combinado con la metodología de la lingüística del corpus.
Enseñar y aprender en el ciberespacio: Aportes desde las pedagogías ciberfeministas a la educación virtual. Revisión sistemática de literatura
Authors: Sepúlveda-Parrini Paloma , Valdivia-Vizarreta Paloma , Pineda-Herrero Pilar
Published: June 2022

Los entornos virtuales presentan enormes desafíos en términos de brechas y desigualdades. Una de ellas es el rol del género y sus implicaciones en las relaciones mediadas por las tecnologías. En este escenario, los entornos virtuales de educación superior no son una excepción. Esta revisión sistemática de literatura tiene por objetivo identificar las aportaciones de las pedagogías ciberfeministas y su vigencia en el contexto actual de la educación superior virtual. A partir de los registros obtenidos, entre los años 1999 y 2019, sistematizamos las principales ideas en torno a cinco ámbitos claves para esta modalidad de estudios: docentes, estudiantes, plataformas, diseños pedagógicos e instituciones. Los resultados obtenidos evidencian el alcance de las pedagogías ciberfeministas en la actualidad, al estar en sintonía con los debates sobre el feminismo en Internet, las pedagogías feministas, la inclusión de la perspectiva de género en educación superior y las modalidades de educación mediadas por tecnologías. Concluimos que, a pesar de un escaso uso del concepto pedagogías ciberfeministas, en los últimos años cobra relevancia frente a los fenómenos de transformación de la educación superior, el contexto post pandemia de especial interés por las tecnologías educativas y la latencia de las violencias, y las brechas y desigualdades en el ciberespacio.
Influencers de ciencia en Twitch. Divulgación científica a través de vídeo-streaming en tiempos de COVID-19
Authors: Buitrago Álex , Torres Ortiz Lidia
Published: June 2022

En los últimos años, y en especial tras la crisis sanitaria del COVID-19, se ha incrementado el consumo de plataformas de vídeo online como alternativa al consumo de medios audiovisuales tradicionales. Este artículo explora la divulgación científica presente en el contexto español de Twitch –plataforma hegemónica de vídeo-streaming–, focalizando en el análisis de contenido de textos audiovisuales generados por influencers de ciencia que cohabitan en Twitch junto a gamers, esports y todo tipo de social media entertainment. Para ello se empleó una orientación metodológica cualitativa –basada en un set de categorías semiótico-discursivas– que se aplicó sobre la producción de una muestra de seis de los divulgadores científicos más representativos de la twitchesfera española. Los resultados despliegan las estrategias discursivas de los textos analizados y visibilizan las particularidades de un tipo de divulgación científica –generada por influencers de ciencia y emitida en streaming– que convive dentro del ecosistema mediático con los medios generalistas y las fuentes oficiales científicas. En concreto, los divulgadores científicos de Twitch apuestan por un formato audiovisual basado en el personality vlog y un discurso caracterizado por una articulación expresiva eminentemente didáctica, la interacción sincrónica con el usuario y el uso de un tono ameno basado en unos códigos comunes compartidos con la comunidad. Pese a tratarse de un tipo de comunicación científica en ciernes y de la condición efímera de sus emisiones, los resultados de este estudio apuntan a la divulgación en Twitch como un vehículo eficiente para captar la atención del público joven hacia contenidos científicos y al compromiso de los creadores estudiados por un discurso basado en la calidad divulgativa y el rigor científico.
Mecanismos tecno-adictivos reflejados en hábitos, comportamientos y conductas de jóvenes video jugadores: Una perspectiva de género
Authors: González-Pérez Alicia
Published: June 2022

Desde que los videojuegos se han convertido en un fenómeno de masas, ha crecido el interés por parte de los investigadores de conocer el impacto de los videojuegos en el aprendizaje, en el desarrollo de nuevas formas de interaccionar y comunicarse entre jóvenes, en el desarrollo de habilidades, y otros efectos en el comportamiento y el rendimiento académico. Viendo la expansión de este sector y su impacto en la juventud, se consideró importante analizar los mecanismos tecno-adictivos reflejados a través de hábitos, comportamientos y conductas de los más jóvenes. Para ello, se diseñó un cuestionario, que previamente se sometió a un proceso de validación de contenido por jueces de expertos. La muestra fue de 142 estudiantes de secundaria de la Comunidad Autónoma de Extremadura. Tras comprobar que las escalas analizadas eran válidas y fiables, se realizaron análisis descriptivos y de comparación de medias para demostrar si había diferencias significativas desde una perspectiva de género. Según los datos analizados se considera que jugar a Fortnite no es causa directa del absentismo escolar, no afecta a su descanso personal y diario, no deteriora las relaciones con sus amigos y otras personas cercanas, y no desencadena conductas como la ansiedad, tristeza o irritación si no se juega. Finalmente, resaltar que no se encontraron diferencias significativas de género en las variables analizadas.
Tecnología digital y educación superior en el contexto de la pandemia
Authors: Figueroa Sarriera Heidi J.
Published: June 2022

Este escrito aborda aspectos que inciden en el proceso de construcción de formas emergentes de relaciones sociales en el contexto del desarrollo de la tecnología digital – especialmente las redes sociales y los espacios colaborativos multimediáticos y tridimensionales. Esta discusión se sitúa en el contexto de la educación superior en los tiempos pandémicos del Covid-19 y su secuela viral. Se abordan aspectos psicosociales en el contexto de  los cambios acelerados en las formas de convivencia y la gestión del proceso educativo a nivel superior. Se sugieren consecuencias que  afectan el proceso cognitivo individual así como cambios en políticas institucionales que pueden implicar la transformación de la universidad como institución social y educativa.
ACUTE EFFECTS OF BILATERAL AND UNILATERAL WHOLE BODY VIBRATION TRAINING ON JUMPING ABILITY, ASYMMETRY, AND BILATERAL DEFICIT ON FORMER ARTISTIC GYMNASTS
Authors: Dallas George , Kolovou Vasiliki , Pappas Panagiotis , Mellos Vasilis , Paradisis Giorgos
Published: June 2022

Whole-body vibration (WBV) has been used to improve jumping ability, muscle strength, power, and performance in various sports. Bilateral deficit (BLD) is defined as the difference in the magnitude of the maximum force during single or double support. The present study investigated the effect of unilateral and bilateral whole-body vibration (WBV) exercise on jumping ability, asymmetry and BLD on former artistic gymnasts. Twenty-eight former artistic gymnasts volunteered to participate in this study. Participants performed 4 experimental protocols on nonconsecutive days in a random order. Each protocol included a 3-min-warm-up running on the treadmill at 2.22 m.s -1, followed by a 2-min rest. The intervention protocols were: a) WBV with feet [bipedal] (WBVB), b) WBV with single foot [unilateral] (WBVU), c) WBVB with the device turn-off (NWBVB), and d) WBVU with the device turn-off (NWBVU). The dependent variables were the squat jump (SJ) and counter movement jump (CMJ) with both feet (bilateral) and with single leg (unilateral). Results showed a significant interaction effect between the condition and time on SJ on both condition (bilateral and unilateral) and CMJ, whereas significant main effect was found for the condition and for time on SJ. Conclusively, the WBV unilateral condition improves significantly lower limbs symmetry during SJ performance. Further, bilateral WBV (WBV B) was the most effective condition on bilateral and unilateral SJ and CMJ performance.
Clinical features of very early-onset inflammatory bowel disease in Japan: a retrospective single-center study
Authors: Usami Masaaki , Takeuchi Ichiro , Kyodo Reiko , Hirano Yuri , Kashiwagi Kosuke , Fujikawa Hiroki , Shimizu Hirotaka , Kawai Toshinao , Arai Katsuhiro
Published: June 2022

Background/Aims: Very early-onset inflammatory bowel disease (VEO-IBD), defined as IBD diagnosed in patients younger than 6 years, is a challenge for pediatric gastroenterologists. Although there have been reports regarding VEO-IBD in Western countries, those in Asia are still lacking. This study aimed to investigate the clinical features of Japanese VEO-IBD patients.Methods: Patients with VEO-IBD diagnosed between 2006 and 2019 were evaluated retrospectively. The disease phenotypes were classified into ulcerative colitis type (UC-type) and Crohn’s disease type (CD-type), and the clinical features and courses were compared between the phenotypes.Results: Overall, 54 VEO-IBD patients (19 patients with UC-type and 35 patients with CD-type) were evaluated. The median age at onset was 18 months. One patient had severe combined immunodeficiency (SCID), and 9 patients had monogenic IBD. Monogenic IBD was more prevalent in the CD-type patients with perianal disease (CD-type (PD)). The age at onset was significantly lower in the CD-type group (P<0.05). The most common initial symptom was bloody stools (70%), followed by diarrhea (63%), weight loss (24%), fever (20%), and perianal disease (20%). Excluding patients with SCID and monogenic IBD, 23 out of 44 patients (52%) required biologics. The biologics were switched in 11 out of 44 patients (25%), and the majority of these patients (82%) were in the CD-type group. Overall, 9 patients (20%) required intestinal resection or ostomy placement.Conclusions: CD-type tends to occur at an earlier age, and monogenic IBD occurs significantly more frequently in CD-type (PD). Disease severity and treatment should be individualized, owing to the disease heterogeneity.
Effect of speckle size on surface crack detection via digital image correlation
Authors: Aghdam Milad Z. , Soltani Nasser ,   Intelligence Based Experimental Mechanics Center, School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran 1417614411, Iran
Published: June 2022

Digital image correlation (DIC) is an experimental stress analysis technique used in nondestructive tests. The accuracy of DIC in crack detection depends on various factors such as the sizes of speckles and pixels. In the current study, a speckle pattern based on the spreading of nanoparticles with small speckles is compared with a conventional sprayed pattern to understand whether crack detection via DIC is improved by reducing the sizes of speckles and pixels. Owing to the small size of nanoparticles, an optical microscope is used for magnification. The spreading method for crack detection is first investigated experimentally. Results show that cracks can be detected easily when a 250 nm opening appears in the crack edges. Subsequently, the spreading method is compared with the conventional DIC, in which the spraying method is used for patterning, in terms of crack detection. Results show that by reducing the speckle size and closely analyzing the speckle pattern, the DIC technique is considerably better than the conventional technique in detecting small cracks. Moreover, the conventional method is more suitable for detecting large cracks.
Pulmonary embolism: echocardiographic particularities in acute phase and distance monitoring
Authors:   Institute of Cardiology, the Republic of Moldova, Cuzor Tatiana , Diaconu Nadejda ,   Institute of Cardiology, the Republic of Moldova
Published: June 2022

Pulmonary thromboembolism (PE) remains a fatal disease underdiagnosed in the emergency department that suggests the need for alternative noninvasive approaches to rapid diagnosis. The role of echocardiography (ETT) in acute pulmonary embolism (PE) remains incompletely defined. Of the 80 patients included in the study with the preventive diagnosis of PET 68 (85%) underwent ETT examination in the first 24-48 hours of hospitalization. ETT analysis established signs of pulmonary hipertension: severe (PSAP ≥55mmHg) at 39 pts (57.3%), moderate (PSAP ≥35<55mmHg) at 25 pts (36.7%); low (PSAP <35mmHg) at 4 pts (5.9%). RV dilatation>35mm, RA area> 18.0cm2, RV free wall hypokinesis, reduction of TAPSE index <16.0mm, increase of tricuspid regurgitation jet speed> 2.8 m/sec, decrease of RV S’m tissue index <9, 5cm/sec, TAPSE / PASP ratio <0.4 and combinations thereof demonstrated superiority in predicting adverse outcome in high and intermediate risk in acute PE. This article is part of the results of the study within the state project with the figure 20.80009.8007.28.
Pulmonary thromboembolism and diabetes mellitus
Authors:   Institute of Cardiology, the Republic of Moldova, David Lilia
Published: June 2022

Diabetes mellitus (DM) has an increasing prevalence worldwide, it is a well-known risk factor for cardiovascular diseases. Vascular complications of diabetes are important causes of morbidity and mortality among diabetic patients. Venous thromboembolism (VTE) is the third most common circulatory disorder in Western populations, and pulmonary embolism the third most common cause of death from cardiovascular disease after heart attack and stroke.Diabetes may facilitate thrombosis through activation of the coagulation system and impairing fibrinolysis, thus leading to a hypercoagulable state and is coupled with other prothrombotic factors such as chronic inflammation, enhanced oxidative stress, and decreased expression of protective endothelial factors. Several epidemiological and clinical studies have investigated the correlation between DM and VTE, but the results were conflicting. Some reported a positive association between diabetes and risk of VTE, whereas others failed to detect a significant relationship. This review summarize the current state of the literature on the link between diabetes and risk of VTE.
Global COVID 19 distribution and its association with the selected demographic variables of the countries: A Cross-sectional Infodemiological approach at 10th month of Pandemic
Authors: Chandy Ponnambily , Rebekah J Grace , Jeya Rani K. Angeline , Kanthi. K Esther , Sathianathan. Prasannakumari , Walling K. Imnainla , Varghese Pulikkottil Anmery
Published: June 2022

Background and objectives: As we are about to enter a year of COVID 19 pandemic, the investigators attempted to pool the COVID 19 cumulative case numbers of 38th epidemiological week and demographic data of all affected countries and looked for any significant association between them. Methods: A cross-sectional infodemiological approach was selected to collect the cumulative data of 156 affected countries from the dashboards last updated on September 20th, 2020. Results: Countries like India, USA, Brazil and Russia were reported with more than 1 million confirmed cases of COVID 19, USA and Brazil had more than 100 K total reported deaths due to COVID-19, and still in India, USA, Brazil, Russia, Mexico, UK, France, Colombia, Spain, Argentina and Peru had more than 100 K active cases of COVID 19. It is shown that there is a significant association between the total population and the continents of the affected countries and the global COVID 19 distribution including the proportion of tests per 100 population (p<0.05). It is also shown that the majority of European countries conducted >10 tests per 100 population (p<0.05) whereas, <10 tests per 100 population were conducted in African countries (p<0.05). Interpretation and conclusions: Overall, the findings give a cross-sectional glimpse of cumulative global COVID 19 distribution data, which would help the policymakers of the affected countries to evaluate the ongoing COVID 19 preparedness and response measures to come out from the pandemic.
Assessment of Psychometric properties of Clinical Competence Self-Assessment Tool (CCSAT)
Authors: Srivastava Sunita
Published: June 2022

Introduction: The healthcare sector is very complex. Presently there is shortage of nurses and the hospitals tend to recruit new graduate nurses to work in critical and intensive care units. The baccalaureate study equips a nursing student with theoretical knowledge and fundamental nursing skills. There is still a challenge to promote nursing student’s competence before they acquire their nursing degree. Nurse competence has been assessed in past, few have estimated it at the point of completion of nursing degree. In India too there is a scarcity of data and so far no tool developed or modified to assess the same. Purpose of the current study is to assess reliability and validity of a newly developed “Clinical Competence Self Assessment Tool” which measures perceived clinical competence in terms of professional behavior, knowledge and skills. Aim: To establish reliability and validity of CCSAT. Materials and Methods: The present paper assesses CCSAT try out results on a sample of 410 upcoming nursing graduates from 09 randomly selected nursing colleges of western Uttar Pradesh. A cross sectional descriptive survey design was done to collect the data. Factor analysis was used to analyze the results. Results: The data was found suitable for factor analysis. All subscales achieved reliability with reliability coefficient value of > 0.83. Post factor analysis all the 19 items were retained in professional behavior subscale and one item each were reduced from Knowledge and skills subscale. Conclusion: Final CCSAT, post try out on a sample of 410 upcoming graduates CCSAT contained total 90 items. The reliability and validity of the tool was also ascertained.
A Study to Assess the Knowledge regarding Cervical Cancer among women in Civil Hospital Sec-6 Panchkula
Authors: Sharma Shivani
Published: June 2022

Cervical Cancer is a malignant neoplasm arising from cells originating in the cervix. One of the most common symptoms of cervical cancer is abnormal bleeding, but in some cases there may be no obvious symptoms until the cancer has progressed with this aim the study was conducted to assess the knowledge regarding cervical cancer. A quantitative research approach was adopted for the study and descriptive survey design was employed to assess the knowledge regarding cervical cancer among women in Civil Hospital Sec-6 Panchkula. A total 100 women were selected by using purposive sampling technique. Data was analyzed by using descriptive and inferential statistics. The result of the study revealed that 42% girls had average knowledge regarding cervical cancer, where as53% subjects had inadequate knowledge and only 5% subjects had good knowledge. The mean knowledge score of 11.19, Median was 10 and SD was5.64. The finding of the study was indicated a strong need to providing knowledge about cervical cancer and its prevention.
STRENGTH PROPERTIES OF PHOTORESISTS FOR EXPLOSIVE LITHOGRAPHY
Authors: VABISHCHEVICH S. , VABISHCHEVICH N. , BRINKEVICH D. , PROSOLOVICH V. , KOLOS V. , ZUBOVA O.
Published: June 2022

The adhesion and strength properties of NFR 016b4 photoresist (PR) films for explosive lithography deposited on the surface of KDB-10 single-crystal silicon wafers by centrifugation have been studied. It has been found that they behave like brittle materials. The FR microhardness measured at low loads was ~0,3 GPa, decreasing slightly with increasing film thickness. The crack resistance parameters (fracture toughness coefficient K1С and effective fracture energy γ) at low loads do not depend on the film thickness. With increasing load, the crack resistance of a thin film increased faster than that of a thick one. The specific peeling energy G under normal loading was ~1,2 J/m2 for thick and ~0,7 J/m2 for thin films. The higher values of G for thick films are most likely due to the compensation of elastic stress fields arising at the photoresist/silicon interface. The strength properties of NFR 016b4 explosive lithography photoresist and FP9120 positive diazoquinone-novolac photoresist are compared.
STARTING CURRENTS IN TOROIDAL TRANSFORMERS
Authors: DAUHIALA D. , YANUSHKEVICH V. , TIKHANOVICH V.
Published: June 2022

The analysis of the causes of starting currents in toroidal transformers is carried out. The moment of occurrence of the maximum values of starting currents is revealed. A theoretical estimate of the calculation of the magnitude of the starting currents is given. Indirect and direct methods for estimating inrush currents, constructive measures to reduce inrush currents, as well as techniques for reducing the influence of transients on circuit breakers when operating toroidal transformers in a network with sinusoidal voltage are considered. A program has been developed for calculating starting currents for electrical steel 3413. The algorithm of the program and the results of its application are given. The results obtained can be applied to ensure the reliability of power supply at the stages of operation and installation of toroidal transformers of medium and high power.
Benefits of breast milk according to the teachings of Islam, child psychology, and chemical science
Authors: Junitasari Assyifa , Rahmawati Rika , Fahmi Irfan
Published: June 2022

Breastfeeding is one of the most important activities for child development. Breastfeeding is a very important part of the process of growing children who are strong and healthy, both physically and spiritually. Breastfeeding activities not only have an impact on providing nutrition but also on the stimulation of the psychological aspects of the breastfed baby. Islam recommends that a mother breastfeed her baby for two years. Reviewing this explanation, it is necessary to conduct research that integrates religious studies related to the study of Al-Baqoroh verse 233 with chemistry related to the content of breast milk and also with psychology that examines the psychology of children who receive breast milk for 2 years and those who do not get breast milk at all. The research method was carried out by reviewing the interpretation of the Qur'an Surah Al-Baqoroh verse 233 from various experts, examining the chemical content of breast milk from various experts, and carrying out psychiatric observations on 50 school-age children. Based on the results of a literature study related to the study of Al-Baqoroh verse 233 and the chemical analysis of breast milk content with the results of psychological analysis of children who received breast milk for 2 years, it shows that there is an association or relationship. The commands in the Qur'an are in line with the many benefits of breastfeeding, as well as effects on child psychology.
How do trauma nurses play their role and manage their emergency skills of management? A case study at a tertiary care hospital in Lahore
Authors: Akhtar Zubaida , Hayat Khan Mehdi , Noureen Shazia
Published: June 2022

A greater understanding of the connection between a patient's history of trauma and the effects of that trauma on the patient's current mental illness can be gained by nurses who gain experience working in a trauma unit. One of the goals of this discussion is to find ways to provide care to patients without potentially further traumatising them. This educational discussion has the potential to provide nurses with content that describes the interplay of the neurological, biological, psychological, and social effects of trauma, which may reduce the likelihood of retraumatization. [This] discussion can be used to: It is unknown how the multidisciplinary nature of emergency departments (EDs) translates into clinical practise for nurses working in those departments. However, before emergency department nurses can begin working in the field, they must first receive an education that is both meaningful and specific to the role they will play. As a result, the purpose of this discussion was to assess the capabilities of emergency department nurses in terms of emergency management. Methods: This discussion was carried out in the form of exploratory research using a descriptive study layout. The pre-education and post-education questionnaires each had 18 questions, which allowed for the collection of quantitative data. The numbers show that there were a total of 34 emergency department nurses who took part in this education discussion. After the discussion, there was a significant change (p 0.01, r 0.35) in nine of the items in the list of eighteen. The perceived effectiveness of evaluating the role and emergency management skills of ED nurses was the primary point of contention in this argument. The nurses working in emergency departments became more knowledgeable about the impact that traumatic experiences can have on an individual's mental health. However, providing care to trauma patients in an emergency department setting was a significant challenge, and the primary reason for this was the limited amount of time that was available on a daily basis environment of the emergency department (ED) and the high volume of patients who may have multiple and/or complex presentations. Despite this, nurses played an important part in reducing the likelihood of the patients experiencing further trauma.
UMA PROPOSTA DE TRADUÇÃO AUDIOVISUAL EM LIBRAS PARA OS SONS DA NATUREZA NO FILME CORISCO E DADÁ
Authors: Mota Honório Cruz Raquece , Lúcia Santiago Araújo Vera , Frazão Seoane Alexandra
Published: June 2022

Este artigo buscou propor uma tradução para Libras dos efeitos sonoros do tipo som da natureza no filme Corisco e Dadá (1996), tendo como referência os efeitos sonoros traduzidos na Legendagem para Surdos e Ensurdecidos (LSE) do filme. Como aporte teórico, elucidamos as pesquisas sobre Tradução Audiovisual Acessível (TAVa), os Estudos da Tradução Baseados em Corpus, os parâmetros da LSE, o papel do som nos filmes e a Tradução Audiovisual em Língua de Sinais (TALS). Os resultados revelaram que nenhum dos sons da natureza foram traduzidos na TALS. Como esses efeitos sonoros foram importantes para a fruição da narrativa, a não-tradução pode ter prejudicado a recepção dos surdos. A partir disso, analisamos a possibilidade de tradução e propomos como esta poderia ser feita.
Pengukuran Kualitas Pelayanan Jasa Pendidikan Tinggi Terhadap Kepuasan Mahasiswa Pts. X
Authors: Indrayani Rina
Published: June 2022

Abstrak

PTS. X merupakan suatu perguruan tinggi yang ada  di Bandung yang mempunyai beberapa Jurusan Program Studi. Tujuan dari penelitian ini adalah untuk mengetahui kesesuaian antara tingkat kepentingan layanan menurut mahasiswa dan tingkat kinerja yang telah diberikan kampus, sehingga akan diketahui tingkat kepuasan mahasiswa  terhadap kualitas pelayanan kampus dan dapat memberikan usulan terhadap  layanan yang menjadi prioritas perbaikan dan menentukan strategi pelayanan. Metode yang digunakan adalah metode Importance Performance Analysis (IPA) dan Customer Satisfaction Index (CSI) yang diolah dengan software Microsoft Excel 2013l for Windows dan SPSS 20 for Windows. Kuesioner disebar ke 301. Hasil pengolahan data  menjunjukkan tingkat keseseuaian harapan dengan kinerja rata-rata lebih besar dari 0,75 yang menunjukkan adanya kesesuaian dan rasa puas terhadap pelayanan yang diberikan.

 

Kata kunci : Service Quality, Kepuasan Mahasiswa, Pelayanan

 

 

Abstract

Higher Education  “X” is a tertiary institution in Bandung that has several Department of Study Programs. The purpose of this study is to study the suitability between the level of service needs with students and the level of ability provided by the campus, so that it will increase the level of student satisfaction with the quality of campus services and can provide services that are priority in improving and improving service strategies. The method used is the method of Importance Performance Analysis (IPA) and Customer Satisfaction Index (CSI) which is processed with Microsoft Excel 2013l software for Windows and SPSS 20 for Windows. The questionnaire was spread to 301. The results of data processing showed a level of conformity of expectations with an average performance greater than 0.75 which showed differences in suitability and taste of the service provided.

 

Keywords: Service Quality, Student Satisfaction, Service