bluuebunny/crossref_metadata_2025 huggingface dataset:
Birthplaces of Extreme Ultraviolet Waves Driven by Impingement of Solar Jets upon Coronal Loops
Authors: Zhang Liang , Zheng Ruisheng , Chen Huadong , Chen Yao
Published: June 2022

Solar extreme ultraviolet (EUV) waves are large-scale propagating disturbances in the corona. It is generally believed that a vital key to the formation of EUV waves is the rapid expansion of the loops that overlie erupting cores in solar eruptions, such as coronal mass ejections (CMEs) and solar jets. However, the details of the interaction between the erupting cores and overlying loops are not clear because the overlying loops always instantly open after energetic eruptions. Here, we present three typical jet-driven EUV waves without CMEs to study the interaction between the jets and the overlying loops that remained closed during the events. All three jets emanated from magnetic flux cancellation sites in the source regions. Interestingly, after the interactions between the jets and overlying loops, three EUV waves respectively formed ahead of the top, the near end (close to the jet source), and the far (another) end of the overlying loops. According to the magnetic field distribution of the loops extrapolated through the potential field source surface method, it is confirmed that the birthplaces of three jet-driven EUV waves were around the parts of the overlying loops with the weakest magnetic field strengths. We suggest that the jet-driven EUV waves preferentially occur at the weakest part of the overlying loops, and the location can be subject to the magnetic field intensity around the ends of the loops.
Four-hundred Very Metal-poor Stars Studied with LAMOST and Subaru. II. Elemental Abundances
Authors: Li Haining , Aoki Wako , Matsuno Tadafumi , Xing Qianfan , Suda Takuma , Tominaga Nozomu , Chen Yuqin , Honda Satoshi , Ishigaki Miho N. , Shi Jianrong , Zhao Jingkun , Zhao Gang
Published: June 2022

We present homogeneous abundance analysis of over 20 elements for 385 very metal-poor (VMP) stars based on the LAMOST survey and follow-up observations with the Subaru Telescope. It is the largest high-resolution VMP sample (including 363 new objects) studied by a single program, and the first attempt to accurately determine evolutionary stages for such a large sample based on Gaia parallaxes. The sample covers a wide metallicity range from [Fe/H] ≲ −1.7 down to [Fe/H] ∼ −4.3, including over 110 objects with [Fe/H] ≤ −3.0. The expanded coverage in evolutionary status makes it possible to define the abundance trends respectively for giants and turnoff stars. The newly obtained abundance data confirm most abundance trends found by previous studies, but also provide useful updates and new samples of outliers. The Li plateau is seen in main-sequence turnoff stars with −2.5 < [Fe/H] < −1.7 in our sample, whereas the average Li abundance is clearly lower at lower metallicity. Mg, Si, and Ca are overabundant with respect to Fe, showing decreasing trend with increasing metallicity. Comparisons with chemical evolution models indicate that the overabundance of Ti, Sc, and Co are not well reproduced by current theoretical predictions. Correlations are seen between Sc and α-elements, while Zn shows a detectable correlation only with Ti but not with other α-elements. The fraction of carbon-enhanced stars ([C/Fe] > 0.7) is in the range of 20%–30% for turnoff stars depending on the treatment of objects for which C abundance is not determined, which is much higher than that in giants (∼8%). Twelve Mg-poor stars ([Mg/Fe] < 0.0) have been identified in a wide metallicity range from [Fe/H] ∼ −3.8 through −1.7. Twelve Eu-rich stars ([Eu/Fe] > 1.0) have been discovered in −3.4 < [Fe/H] < −2.0, enlarging the sample of r-process-enhanced stars with relatively high metallicity.
Comets in Context: Comparing Comet Compositions with Protosolar Nebula Models
Authors: Willacy Karen , Turner Neal , Bonev Boncho , Gibb Erika , Dello Russo Neil , DiSanti Michael , Vervack Jr. Ronald J. , Roth Nathan X.
Published: June 2022

Comets provide a valuable window into the chemical and physical conditions at the time of their formation in the young solar system. We seek insights into where and when these objects formed by comparing the range of abundances observed for nine molecules and their average values across a sample of 29 comets to the predicted midplane ice abundances from models of the protosolar nebula. Our fiducial model, where ices are inherited from the interstellar medium, can account for the observed mixing ratio ranges of each molecule considered, but no single location or time reproduces the abundances of all molecules simultaneously. This suggests that each comet consists of material processed under a range of conditions. In contrast, a model where the initial composition of disk material is “reset,” wiping out any previous chemical history, cannot account for the complete range of abundances observed in comets. Using toy models that combine material processed under different thermal conditions, we find that a combination of warm (CO-poor) and cold (CO-rich) material is required to account for both the average properties of the Jupiter-family and Oort cloud comets, and the individual comets we consider. This could occur by the transport (either radial or vertical) of ice-coated dust grains in the early solar system. Comparison of the models to the average Jupiter-family and Oort cloud comet compositions suggests the two families formed in overlapping regions of the disk, in agreement with the findings of A’Hearn et al. and with the predictions of the Nice model.
The Host Galaxy of the Recoiling Black Hole Candidate in 3C 186: An Old Major Merger Remnant at the Center of a z = 1 Cluster
Authors: Morishita T. , Chiaberge M. , Hilbert B. , Lambrides E. , Blecha L. , Baum S. , Bianchi S. , Capetti A. , Castignani G. , Macchetto F. D. , Miley G. K. , O’Dea C. P. , Norman C. A.
Published: June 2022

3C 186, a radio-loud quasar at z = 1.0685, was previously reported to have both velocity and spatial offsets from its host galaxy, and has been considered as a promising candidate for a gravitational wave recoiling black hole triggered by a black hole merger. Another possible scenario is that 3C 186 is in an ongoing galaxy merger, exhibiting a temporary displacement. In this study, we present analyses of new deep images from the Hubble Space Telescope WFC3-IR and Advanced Camera for Surveys, aiming to characterize the host galaxy and test this alternative scenario. We carefully measure the light-weighted center of the host and reveal a significant spatial offset from the quasar core (11.1 ± 0.1 kpc). The direction of the confirmed offset aligns almost perpendicularly to the radio jet. We do not find evidence of a recent merger, such as a young starburst in disturbed outskirts, but only marginal light concentration in F160W at ∼30 kpc. The host consists of mature (≳200 Myr) stellar populations and one compact star-forming region. We compare with hydrodynamical simulations and find that those observed features are consistently seen in late-stage merger remnants. Taken together, those pieces of evidence indicate that the system is not an ongoing/young merger remnant, suggesting that the recoiling black hole scenario is still a plausible explanation for the puzzling nature of 3C 186.
KLLR: A Scale-dependent, Multivariate Model Class for Regression Analysis
Authors: Farahi Arya , Anbajagane Dhayaa , Evrard August E.
Published: June 2022

The underlying physics of astronomical systems govern the relation between their measurable properties. Consequently, quantifying the statistical relationships between system-level observable properties of a population offers insights into the astrophysical drivers of that class of systems. While purely linear models capture behavior over a limited range of system scale, the fact that astrophysics is ultimately scale dependent implies the need for a more flexible approach to describing population statistics over a wide dynamic range. For such applications, we introduce and implement a class of kernel localized linear regression (KLLR) models. KLLR is a natural extension to the commonly used linear models that allows the parameters of the linear model—normalization, slope, and covariance matrix—to be scale dependent. KLLR performs inference in two steps: (1) it estimates the mean relation between a set of independent variables and a dependent variable and; (2) it estimates the conditional covariance of the dependent variables given a set of independent variables. We demonstrate the model's performance in a simulated setting and showcase an application of the proposed model in analyzing the baryonic content of dark matter halos. As a part of this work, we publicly release a Python implementation of the KLLR method.
Correlation between HbA1c and Triglyceride Level with Coronary Stenosis Degree in Type 2 Diabetes Mellitus with Coronary Heart Disease
Authors: Adninta Laily , Samsuria Indranila , Limijadi Edward Kurnia Setiawan
Published: June 2022

BACKGROUND: The mortality of coronary heart disease (CHD) in type 2 diabetes mellitus (DM) increased 2–4 times more than non-diabetics because of coronary stenosis. One of the risk factors for CHD in type 2 DM is dyslipidemia. Hypertriglyceridemia plays an important role in atherosclerosis coronary arteries theoretically. AIM: This study analyzed the parameters of HbA1c and triglyceride levels with the stenosis severity of coronary artery that occurs in type 2 DM patients with CHD that has not been analyzed so far. METHODS: This study was a cross-sectional observational analytic study. Forty patients of type 2 DM with CHD in Kariadi Hospital on September 2013 were recruited based on the inclusion and exclusion criteria. HbA1c level in plasma was measured by turbidimetric immunoassay method. Triglyceride level was measured by enzymatic methods. Coronary stenosis was based on coronary angiography result as percentage. Spearman correlation test was used and p < 0.05 was considered statistically significant. RESULTS: Mean HbA1c and triglyceride levels were 8.89 ± 1.498 % and 220.97 ± 92.24 mg/dL. The correlation test between HbA1c and triglycerides (TG) level with coronary stenosis, respectively, was p <0.001, r = 0.665; p = 0.001, r = 0.501. In addition, correlation between HbA1c and TG was p = 0.002, r = 0.466. CONCLUSION: HbA1c and triglyceride levels increase in line with the increasing stenosis severity of coronary heart disease in patients with type 2 DM.
A-DROP Scoring System in Predicting Mortality within 30 Days of Hospitalization in Community-acquired Pneumonia Patients at H. Adam Malik General Hospital Medan
Authors: Pakpahan Fransisco Sentosa , Bihar Syamsul , Syarani Fajrinur , Eyanoer Putri
Published: June 2022

BACKGROUND: Community-acquired pneumonia (CAP) is the leading cause of death among infectious diseases, contributing significantly to patient morbidity and mortality. Therefore, an accurate initial assessment of CAP severity should be performed immediately to determine the prognosis before starting the management. A-DROP scoring system is one of the initial assessments.

AIM: This study aimed to determine the accuracy of the A-DROP scoring system in predicting mortality within 30 days of hospitalization at H. Adam Malik General Hospital Medan.

METHODS: This is an observational study with a retrospective and cohort study. Data were obtained from the medical records of 76 CAP patients hospitalized from January 2018 to December 2018. Each patient was assessed with an A-DROP scoring system and the presence or absence of mortality within 30 days of hospitalization. The data were processed using statistical analysis to calculate the area under curve (AUC) on the receiver operating characteristic (ROC) curve. The optimal cutoff point is also analyzed using the Youden index.

RESULT: The ROC curve analysis showed that the AUC was 0.772 (95% CI: 0.666–0.978, p < 0.001). The accuracy of A-DROP scoring system is good (AUC:0.7−0.8). The optimal of the Youden index is 0.428 at the cutoff point A-DROP score >1.5, so that the optimal cutoff point is A-DROP score ≥2.

CONCLUSION: The A-DROP scoring system has good accuracy in predicting mortality within 30 days of hospitalized CAP patients. The A-DROP scoring system has an accuracy similar to the PSI (Pneumonia Severity Index) and the CURB-65 scoring system.
Revision of 18 ichneumonid fossil species (Hymenoptera, Ichneumonidae) highlights the need for open nomenclature in palaeontology
Authors: Spasojevic Tamara , Broad Gavin R. , Klopfstein Seraina
Published: June 2022

The fossil record of Darwin wasps (Ichneumonidae) is extremely understudied relative to their enormous extant diversity, with only around 300 species described. Moreover, the taxonomic placement of many of the fossils is based on an outdated classification system. We here revise 18 ichneumonid fossils, all described before the most comprehensive revision of ichneumonid classification by Henry Townes. After a careful reinterpretation of character evidence, we leave the original placement of only five fossils, while expressing uncertainty about the placement of two of them, Pimpla ? seyrigi Theobald and Polysphincta ? inundata Brues, by following the principles of open nomenclature. In addition, we move Parapimpla rhenana Theobald, 1937 stat. rev. from Pimplinae to Ctenopelmatinae. We describe a new phygadeuontine genus to accommodate two fossils previously described in Pimplinae, Armadilleon morticinus (Brues) gen. et comb. nov. and A. petrorum (Brues) gen. et comb. nov. Finally, we change the genus and, almost always, the subfamily placement for ten fossils: Hallocinetus ? arvernus (Piton) comb. nov., Dimophora ? longicornis (Theobald) comb. nov., Dimophora ? wickhami (Cockerell) comb. nov., Lycorina ? indura (Theobald) comb. nov., Acerataspis ? revelata (Brues) comb. nov., Hypsicera ? solidata (Brues) comb. nov., Orthocentrus ? mortuaria (Brues) comb. nov., Zagryphus tilloyi (Theobald) comb. nov., Lithoserix antiquus (Saussure) comb. nov. and Monoblastus ? senilis (Brues) comb. nov. Our revision highlights the need for the re-interpretation of perhaps a majority of ichneumonid fossils and for widely adopting the open nomenclature framework. This framework allows uncertainty in fossil classification to be expressed in an intuitive and explicit manner, which contributes to alleviating misinterpretation of the palaeontological literature, for instance in phylogenetic dating studies.
Gigantism in tadpoles and color anomalies in European green toad Bufotes viridis from Poland
Authors: Szkudlarek Michał , Kaczmarek Jan Marek , Piasecka Marta , Grenas Wiktor , Kaczmarski Mikołaj
Published: June 2022

Some new cases of anomalies in wild Bufotes viridis from Western Poland are presented together with a discussion of their potential causes and a comparison with similar cases from the literature. The anomalies in question are color aberrations (pre- and post-metamorphic) and developmental pathologies (pre–metamorphic). The color anomalies include an ochre patch in a juvenile, leucism and albinism in both tadpoles and juvenile individuals. Developmental pathologies described in this paper include gigantism, edema, curvature of tail, and asymmetric bodies.
Filmer l’île et la frontière. Autour de Fuocoammare , par-delà Lampedusa (Gianfranco Rosi, 2016)
Authors: Gendrault Camille
Published: June 2022

Tout en s’inscrivant dans une dimension résolument locale, puisqu’il considère le quotidien des habitants d’une île située au sud de la Sicile, Fuocoammare était présenté à sa sortie en 2016 comme un film visant à mobiliser les consciences politiques au niveau européen. C’est en effet de Lampedusa qu’il y est question et ce documentaire de Gianfranco Rosi a rencontré un écho important. L’île y est à la fois point névralgique des flux migratoires et placée à l’écart du Monde. Cet article examine les choix formels, de montage en particulier, à travers lesquels le film creuse cette contradiction pour pointer les effets d’une certaine forme de frontière depuis le lieu qu’il observe. Son objectif est de mettre ainsi en lumière l’imaginaire ambivalent de l’insularité que mobilise pour ce faire le documentaire, y compris en croisant son analyse avec celle du film de fiction Terraferma (Emanuele Crialese, 2011) qui proposait une approche très différente du même territoire.
Rapport intermédiaire : les arts du spectacle indépendants entre consolidation institutionnelle et précarité – une perspective comparative européenne
Authors: Eder Thomas Fabian , Georget Jean-Louis
Published: June 2022

Les arts du spectacle indépendants sont en train de s’ancrer comme un champ organisationnel opérant sur tout le continent européen. Une analyse comparative à l’échelle européenne se concentrant sur les caractéristiques structurelles qui définissent institutionnellement ce domaine n’a pas encore été produite. Le présent document vise à inspirer la discussion. Il accorde une place prépondérante aux conditions socio-économiques du secteur, compte tenu notamment des nouveaux défis posés par la pandémie de coronavirus. Ensuite, les mesures prises par les associations de défense des arts du spectacle pour améliorer le statut précaire des artistes illustreront le développement de la conscience mutuelle, les modèles de coalition internationale et l’alignement isomorphique dans la structuration du domaine au-delà des frontières des États-nations. Enfin, les réalisations en matière de gouvernance culturelle, et donc l’interaction constructive entre l’État et les organisations de défense des droits pour relever les défis posés, sont présentées. La recherche est basée sur 1 031 réponses à une enquête menée auprès de professionnels de la culture ainsi que sur des entretiens d’experts avec la direction d’organisations indépendantes de défense des arts du spectacle de douze pays européens.
Christian Chartier, un catalyseur de la Formation Professionnelle Continue bordelaise (1977-2002)
Authors: Claverie Éric
Published: June 2022

L’article relate la transformation historique de la Formation Professionnelle Continue des enseignants d’EPS de l’académie de Bordeaux, de la fin des années 1970 à l’orée du XXI e  siècle. Elle est appréciée à l’aune de la trajectoire de l’acteur chargé de son déploiement, et de la revue professionnelle dédiée ayant accompagné son action. Après une brève biographie du personnage et une mise en contexte exposant l’état de la Formation Continue des enseignants d’EPS à sa prise de fonction, l’étude explore les changements à l’œuvre, tant dans les actions de formation impulsées que dans les orientations éditoriales de la revue idoine. Par la suite, la réflexion resitue l’action du personnage au regard d’une phase de transition de la discipline EPS du champ sportif, dont elle est encore largement tributaire, vers celui du monde scolaire. Par l’habileté et l’étendue du réseau de l’acteur, elle montre que l’hypothèse de l’initiative individuelle dans le changement historique peut se révéler porteuse de sens dans certaines circonstances.
Science Teaching Approach Ethno-SETSaR to improve pre-service teachers’ creative thinking and problem solving skills
Authors: Winarto Winarto , Cahyono Edy , Sumarni Woro , Sulhadi Sulhadi , Wahyuni Siti , Sarwi Sarwi
Published: June 2022

Pre-service teachers need creative thinking and problem solving skills to support their teaching quality. The aims of this research: (1) problems in science teaching, creative thinking and problem solving skills of pre-service teachers; (2) improvements of creative thinking and problem solving skills of pre-service teachers through Ethno-SETSaR Science Teaching Approach, and (3) relationship pattern of critical thinking and problem solving skills. The research method applied in this study was sequential exploratory mix method. The research design consisted of five stages: 1) qualitative data gathering; 2) qualitative data analysis; 3) quantitative data gathering; 4) quantitative data analysis and 5) data interpretation. The subjects of this research were 80 pre-service teachers from two universities. The research instruments were essay tests of creative  and problem solving skills. The data analysis used was independent T Test. It could be concluded from qualitative study that science teaching practice was still oriented on content knowledge mastery. It did not improve creative thinking and problem solving skills. Science teaching with Ethno-SETSaR approach was applied as foundation to quantitative study. The result of quantitative study was there was difference in creative thinking and problem solving skills of pre-service teachers. The pre-service teachers enrolling science teaching with Ethno-SETSaR approach had higher scores. There was correlation of creative thinking affecting problem solving skills.
Chemical composition and toxicity of extracts of Fouquieria splendens against Artemia salina
Authors: Nevárez-Prado Lenin O. , Amaya-Olivas Nubia , Sustaita-Rodriguez Alejandro , Rodríguez-Zapién Jesús , Zúñiga-Rodríguez Erick , Cordova-Lozoya María , García-Triana Antonio , Sandoval-Salas Fabiola , Hernández-Ochoa León
Published: June 2022

Ocotillo (Fouquieria splendens) has been used in Mexican traditional medicine for the treatment of blood circulation problems, swelling, and prostatic hyperplasia, among others. The objective of this study was to use different extraction methods (soxhlet, hydrodistillation and ultrasound) and solvents with different polarities (hexane, methyl chloride, ethyl acetate, acetone and methanol) to determine volatile compounds contained in ocotillo stems. Solvents used were water in hydrodistillation; hexane, methyl chloride, ethyl acetate, acetone, and methanol in soxhlet; and a solvent mixture of water acidified with methanol, acetone, and 1% acetic acid at a 50:35:15 ratio in the ultrasound method. The major components identified were bis (2-Ethylhexyl) phthalate, bis (2-Ethylhexyl) ester, butyl acetate, palmitic acid, and myristic acid. A toxicity assay on Artemia salina was conducted and the median lethal concentration was quantified. The bioassay showed that extracts isolated by non-polar solvents are extremely toxic because they were lethal at concentrations lower than 100 ppm, while polar extracts were innocuous. However, in polar extracts were found compounds that suggest their use in traditional medicine, the most relevant being 2-butoxyethanol, pentadecanol, and undecanal.
Efficient thermomechanical modelling of Laser Powder Bed Fusion additive manufacturing process with emphasis on parts residual stress fields
Authors: Psihoyos Harry O. , Lampeas George N.
Published: June 2022

Laser Powder Bed Fusion (LPBF) process is one of the advanced Additive Manufacturing (AM) processes, which is employed for the fabrication of complex metallic components. One of the major drawbacks of the LPBF is the development of residual stresses due to the high temperature gradients developed during the process thermal cycles. Reliable models for the prediction of residual strain and stress at part scale are required to support the LPBF process optimization. Due to the computational cost of the LPBF simulation, the current modelling methodology utilizes assumptions to make feasible the prediction of residual stresses at parts or component level. To this scope, a thermomechanical modelling approach for the simulation of LPBF process is presented with focus to residual stress and strain prediction. The modelling efficiency of the proposed approach was tested on a series on cases for which experimental data were available. The good comparison between the predicted and experimental data validated the modelling method. The efficiency of the thermomechanical modelling method is demonstrated by the reduced computational time required.
Common fixed point and coincidence point results for generalized $ \alpha $-$ \varphi_{E} $-Geraghty contraction mappings in $ b $-metric spaces
Authors: Lang Chen , Guan Hongyan
Published: June 2022

In this paper, we study the existence and uniqueness of common fixed point of $ \alpha_{i, j} $-$ \varphi_{{E}_{M, N}} $-Geraghty contraction mappings and the existence of coincidence point of $ \alpha_{i, j} $-$ \varphi_{E_N} $-Geraghty contraction mapping in the framework of $ b $-metric spaces. We also give two examples to support our results.
A real representation method for special least squares solutions of the quaternion matrix equation $ (AXB, DXE) = (C, F) $
Authors: Zhang Fengxia , Li Ying , Zhao Jianli
Published: June 2022

In this article, our interest is the quaternion matrix equation $ (AXB, DXE) = (C, F) $, and we study its minimal norm centrohermitian least squares solution and skew centrohermitian least squares solution. By applying of the real representation matrices of quaternion matrices and relative properties, we convert the quaternion least squares problems with constrained variables into the corresponding real least squares problems with free variables, and then we obtain the solutions of corresponding problems. The final results can be expressed only by real matrices and vectors, and thus the corresponding algorithms only involves real operations and avoid complex quaternion operations. Therefore, they are portable and convenient. In the end, we give two examples to verify the effectiveness of the purposed algorithms.
Efecto barrio en Bilbao: evidencia empírica reciente
Authors: Aguado-Moralejo Itziar , Echebarria Carmen , Barrutia Jose M.
Published: June 2022

El objetivo de este trabajo es explorar la posible existencia del “efecto barrio” en la ciudad de Bilbao. Para ello, a partir de estadísticas municipales y utilizando como soporte el Análisis Factorial Múltiple, realizamos una caracterización de los barrios de Bilbao desde una perspectiva multidimensional. El análisis sugiere que en algunas de las áreas más segregadas de la ciudad se observan algunos de los mecanismos a través de los que opera el “efecto barrio”. En cuanto a la gestión pública, los enfoques de gobernanza a escala barrial reconociendo al barrio como el ámbito de actuación principal parecen ser la respuesta más adecuada para avanzar en la reducción de la segregación y en la mejora de la calidad de vida de los residentes.
Procesos de trazado, replanteo y erección en las primeras iglesias góticas en la ciudad de Córdoba (España)
Authors: García-Ortega Antonio Jesús
Published: June 2022

Los procesos constructivos que permitían levantar los atrevidos organismos góticos aún son poco conocidos, especialmente en arquitecturas modestas como la parroquial de repoblación, frecuentemente indocumentadas. Con menos recursos que las grandes fábricas, sus soluciones técnicas y estrategia de erección atenderían a una optimización de medios y costes, cuestión ésta a menudo obviada. Esta problemática ha sido abordada en el conjunto parroquial cordobés, homogéneo y erigido en los siglos XIII-XIV, y cuyas características y soluciones son evidentes por la desnudez de sus fábricas. Esto ha permitido el análisis conjunto de sus procesos constructivos, así como los de trazado y replanteo a ellos asociados, evidenciando asentados principios de actuación, eficaces y posiblemente reconocibles en otros edificios coetáneos. Entre ellos la priorización de los modos de construcción “en vertical”, muy relacionados con la autonomía de las distintas zonas y unidades constructivas, trasluciéndose un acertado conocimiento, intuitivo al menos, de cómo funcionaba el edificio.
Developing Student Creative Problem-Solving Skills (CPSS) Using Online Digital Storytelling
Authors: Khamcharoen Nipaporn , Kantathanawat Thiyaporn , Sukkamart Aukkapong
Published: June 2022

This study set out to research and evaluate the needs in developing creative problem-solving skills (CPSS) of undergraduate students through developing and evaluating a digital storytelling process using Padlet. The sampling process used simple random sampling to select 332 teachers from 83 schools in Bangkok. The data was collected using a needs assessment questionnaire, training course questionnaire, and satisfaction questionnaire. Descriptive statistics used for the analysis included frequency, percentage, mean ( , and standard deviation (SD). The data collected were mean scores of expert validity testing and student inter-rater reliability testing. The assessment evaluated student satisfaction toward the CPSS training course using 30 students in the Computer Education Program at Dhonburi Rajabhat University's Faculty of Education in Thailand. The findings revealed that of the four aspects identified for developing undergraduate CPSS, elaboration was at the top of the priority of needs (PNIModified = 0.20). This was followed by originality and flexibility (PNIModified = 0.19). Finally, was fluency (PNIModified = 0.18). Also, analysis of the prospective condition was ranked ‘high’ across all four aspects with an average of  = 4.38 SD = 0.06. Further analysis of the real condition showed that all four aspects had an average of  = 3.67, SD = 0.06. The study contributes to the literature in that it demonstrated that correctly developed and implemented undergraduate student CPSS can increase significantly. This fact is critical in knowing as a nation’s future depends on its workforce and leaders having CPSS.
Contextual Based E-learning (CBE): A New Model for Online Teaching in Public Health Department for Learning During the Covid-19 Pandemic
Authors: Reno Renaldi  , Aldiga Rienarti Abidin  , Irawan Yuda , Abdurrahman Hamid  , Rizky Ema Wulansari
Published: June 2022

In order to to support physical distancing activities in the teaching and learning process during the Covid-19 pandemic, an appropriate and effective learning model to fit the learning objectives must be developed. The CBE (Contextual Based on E-learning) learning model, developed from the Contextual Teaching Learning (CTL) model, was integrated with e-learning. This CTL learning model was chosen because this model is an innovative learning model where the process can assist students to connect learning with the context of their lives. This study aims to describe the model's effectiveness which was measured based on three aspects, namely: a) significant difference between students’ achievement in CBE model compared to that in traditional model; b) The effectiveness of CBE syntax in learning; c) Students’ perception on the new CBE model. This study is quantitative research with quasi experimental method. The results of the CBE model showed that the CBE model is significantly effective in improving students' abilities. Therefore, it can be concluded that the CBE model is proven to be effective to be implemented as new teaching model in online learning. The implication of this research is to contribute to new existing knowledge for education, and computer science and to add references to new online-based models. The limitation of this research is the effectiveness of this model  described the cognitive knowledge trough students’ learning outcomes.
Using Smartphones to Prevent Cross-Functional Team Knowledge Hiding: The Impact of Openness & Neuroticism
Authors: Ton Anh Don , Hammerl Laszlo , Szabó-Szentgróti Gábor
Published: June 2022

The study examines the behaviour of two characteristic traits on knowledge retention, mediated using modern smartphone usage in the corporate environment of cross-functional teams. For the investigation, a self-made model was applied that associates the personality, focusing on the traits of neuroticism and openness towards new concepts and statistically evaluates the effect of increased technological usage. A dataset of 101 individuals working in cross-functional teams was used to test the model. A total of four main hypotheses were developed and statistically tested. Exalted presence of openness towards new experiences was evaluated as a critical factor leading to decreasing knowledge retention. Furthermore, although it was deducted, that neuroticism could not be verified as a knowledge limiting factor in the applied model, smartphone usage could drastically reduce its potentially dangerous factors by using efficient and short communication channels, reaffirmation and commendation by higher-ups and colleagues alike to bolster the missing self-esteem and self-consciousness of neurotic individuals. In contrast, openness was not connected significantly to deliberate knowledge hiding, as individuals incorporating this trait presumably tend to use technological tools of all kinds inherently due to their eagerness to experiment.
Factors Affecting Consumers’ Intention to Use Mobile Ride Hailing Services in Developing Countries
Authors: Al-Masaeed Sultan , Al Nawayseh Mohammad , AlFawwaz Bader , Maqableh Mahmoud , Alnabhan Mohammad , Masa'deh Ra'ed , AL-Shatnawi Atallah
Published: June 2022

Sharing economy services are growing very quickly, including with successful implementations such as mobile ridehailing services, where by consumers and drivers can coordinate to share rides. This research investigates factors that are affecting consumers’ intention to use mobile ridehailing services in developing countries. The research data was collected in June 2021 from Jordanian consumers using an online questionnaire. The collected data was then analyzed to verify the research hypothesizes using Partial Least Squares Structural Equation Modeling (PLS-SEM). The empirical findings indicate that personalized benefits positively attract consumers to use mobile ridehailing applications. The findings also show that consumers’ privacy concerns negatively affect consumers’ intention to use mobile ridehailing applications. Moreover, the findings also show that the role of laws and regulations is significant in such contexts as it decreases the negative interaction between privacy concerns and consumers’ intention to use ridehailing applications. Accordingly, this research suggests that ridehailing practitioners should focus on providing more convienent services and at the same time governments and policy makers should provide protective legislations to overcome user’s privacy concerns.
Can We Talk?: Communicating Moral Concern in an Era of Polarized Politics
Authors: Anderson Elizabeth S.
Published: June 2022

Democracy is endangered by toxic political discourse, including disinformation, harassment, and mass shaming.  These forms of discourse activate and express esteem competition among rival identity groups, as well as ethnocentric fear and resentment.  Such competition and antagonistic feelings derail democratic practices, including fact-based discussion of problems and policies to address them. When people interpret every concern raised by a different group as an attack on their own group’s standing, they resist consideration of the facts to avoid exposure to shame and blame. Yet, when the point of raising facts is to orient others to moral concerns, how can we communicate these concerns without blaming and shaming those who resist?  Without denying that these practices are sometimes justified, I suggest alternative ways to communicate moral concerns so that those who resist shame and blame, and who fear those who raise concerns, can come to share them.  These alternatives are part of an ethos of democratic communication, which ordinary citizens should practice to enable democracy to succeed.
Facilitating Problem-Based Learning in a Synchronous Online Learning Environment
Authors: Ramsey Rhoderick J. , Torres Kelly M. , Statti Aubrey
Published: June 2022

This single case study investigated how instructors and adult learners used a synchronous web-conferencing tool to engage in problem-based learning and knowledge co-construction during a synchronous online learning course. Two instructors and seven adult learners participated in this study. The researcher collected data through nonparticipant observation, conducting semistructured instructor interviews and semistructured focus groups. The researcher engaged in thematic analysis to identify three themes which were (1) seeking in-person interactions, (2) building confidence, and (3) seeking autonomy. The conclusion explains how adult learners must be encouraged early in the synchronous online learning session to interact and engage with their peers. Instructors play a critical role in guiding adult learners through the learning process. The study includes recommendations for future research and recommendations for practitioners.
Digital Transformation of Higher Education in India
Authors: Abrol Shivani , Jain Mukesh Kumar
Published: June 2022

Education was one of the first sectors to experience the consequences of COVID-19. To address this issue, institutions of higher education have changed to an online communication platform, setting up a new standard and redefining the profile of learning for coming generations. The epidemic has fastened the restructuring of higher education, propelling it further toward Education 4.0. Additionally, NEP 2020 includes several reformative measures that are a step in the correct direction. The NEP demonstrates a comprehensive predisposition toward innovative approaches by addressing issues of equity, inclusion, accessibility, exploratory, and experimental learning, all of which are necessary components for transitioning into Education 4.0 and beyond. Education's future may be a synthesis of transformations prompted by Education 4.0, NEP 2020, current pandemics, rising student requirements, and the latest technology. This chapter has attempted to examine some of the most important issues in higher education in today's era and tried to make pertinent recommendations.
Instructional Design Perspectives for Information and Communication Technologies Curriculum
Authors: Albayrak Ebru , Akgün Özcan Erkan
Published: June 2022

Current developments in technologies and new concepts, such as coding, virtual reality, and computational thinking, are rapidly emerging and constantly changing and transforming the world. Information and communication technologies education therefore needs to respond to these developments in order to prepare student for the changing world. This study discusses secondary school level information and communication technology education initiatives in Canada, England, Turkey, Australia, Ireland, Finland, New Zealand, the United States, and China, reflecting on their approaches in order to inform future studies. The findings of this study show that countries used technology education standards to determine course subjects and that these subjects differed between countries. The most notable common element is teaching the use and logic of technology in daily life and being aware of ethical issues. In general, this study sheds light on the countries' technology education approaches.
Pandemic Opportunity to Reinvent Education
Authors: Chawla Y. P.
Published: June 2022

Due to the recent pandemic due to COVID-19, the world has changed, and resilient humanity has handled various sectors excellently, including education with technology and education content aligned to the industry's needs. Education has been changing, referred to as a journey of Education 1.0 to Education 4.0, adjusting to industry requirements of meeting basic needs from reading and writing to computing and then the internet of things with varying quality levels across the globe. All these changes brought the focus on education to the front. These technology changes brought forth by businesses are changing the education requirements and standards and the conditions of skills, foundation literacies, competencies, and human character qualities. The education platforms brought in a concept of nano-degrees, with online learning supported by customised data that corrects the mismatch between occupational supply and demand without any completion with the universities. Now with the COVID pandemic in operation, the survival of the universities is challenged. The educators need to update their expertise and knowledge level, and technologies are available for that.
Digital Transformation
Authors: Bouarar Ahmed Chemseddine , Mouloudj Smail , Mouloudj Kamel
Published: June 2022

Digital literature has provided significant insights into how digital transformation contributes to improving business performance. This research departs from these studies by focusing on driving factors of digital transformation and digital transformation strategies. Moreover, the authors determine the impact of digital transformation on firm performance and identify the challenges of adopting digital transformation. The results show that successful digital transformation can speed up the pace of innovation, increase productivity, improve customer experiences and satisfaction, reduce costs, and improve business performance. The results also revealed that major barriers to digital transformation include lack of knowledge, lack of digital expertise, poor digital leadership, resistance to change, inflexible culture, unclear vision and objective, lack of collaboration and alignment. These results will help to illuminate the complex issue of how to set an effective digital transformation.
Leptospirosis, bovine viral diarrhea and infectious bovine rhinotracheitis: prevalence in Colombian cattle and buffaloes
Authors: García Alejandra Arias , Torreglosa Julio Tobón , Marín Diego Dubeibe , Bernal Marcella Katheryne Marques , Rolim Filho Sebastião Tavares , Pereira Washington Luiz Assunção
Published: June 2022

One of the limiting factors of productive efficiency in cattle and buffalo herds is related to the high prevalence of infectious diseases which affect reproduction. The aim of this study was to determine the prevalence of anti-Leptospira antibodies for bovine viral diarrhea virus (BVDV) and bovine herpesvirus type 1 (BoHV-1) in bovine and buffalo herds in Colombia. Blood serum samples were collected from 1100 buffaloes and 1000 cattle. The ELISA technique was used to detect antibodies against BVDV and BoHV-1, and the microscopic agglutination technique to detect anti-Leptospira antibodies. The prevalence of anti-Leptospira antibodies and of BVDV and BoHV-1 in bovine samples was observed in 16, 39.7, and 65% of animals, respectively, while the positivity in samples for the same antibodies in buffalos was detected in 18.7, 27.5 and 51.5%, respectively. Exposure of cattle and buffaloes to BoHV-1 was positively associated with age, higher prevalence rates were observed in older ages. Seropositivity of cattle for BVDV and BoHV-1 was higher in male animals. Activities such as embryo transfer, milking, and needle reuses, as well as the presence of cats and rodents are factors which favor positivity of the herd for BVDV and BoHV-1.
Economic loss from the main causes of whole bovine carcass condemnation in slaughterhouses supervised by the Federal Inspection Service in São Paulo state from 2010 to 2019
Authors: Rodrigues Rayane Marques , Martins Thaiany Oliveira , Procópio Diego Pierotti
Published: June 2022

The objective of this study was to analyze and determine the economic loss from the main causes of whole bovine carcass condemnation in slaughterhouses that are inspected by the Federal Inspection Service in the state of São Paulo for the period from 2010 to 2019. Economic loss was calculated from multiplication of the number of whole carcasses condemned by the mean yield of meat per carcass and the mean annual price of beef. The monetary values were updated to the year 2019, using the IGP-DI [General Price Index]. The results indicated an economic loss of R$ 4.06 billion from the whole condemnation of bovine carcasses and the main causes were contamination (R$ 1.73 billion), abscess (R$ 283.20 million), urinary cyst (R$ 194.14 million), emphysema (R$ 107.00 million) and nephritis (R$ 107.52 million). The main factors associated with the whole condemnation of bovine carcasses are failures in the pre-slaughter management and in the slaughter stages, as well as nutritional disorders. Consequently, to minimize such losses in beef production in São Paulo state it is recommended to adopt good production practices and train slaughterhouse employees.
The effect of dietary supplementation of mucuna leaf meal on the growth performance, blood parameters, and carcass quality of broiler
Authors: Oloruntola Olugbenga David , Ayodele Simeon Olugbenga , Omoniyi Idowu Samuel , Adeyeye Samuel Adebowale , Adegbeye Moyosore Joseph
Published: June 2022

Three hundred 1-day old broiler chickens were used to assess the effects of Mucuna leaf meal (MLM) dietary supplementation on the performance, haemato-biochemical indices, oxidative status and meat of broiler chickens. Five experimental supplemented diets were formulated: diets: 1 (0% supplement), 2 (1.1 % OXYT), 3 (0.5% MLM), 4 (1.0 % MLM) and 5 (1.5% MLM). The final weight gain of the birds fed diets 2 and 5 was higher (p < 0.05) than those birds fed the control and other diets. The relative weights of the lung were affected (p < 0.05) by dietary supplementation. Serum cholesterol concentration reduces (p < 0.05) with increased dietary MLM supplementation levels from 1.0% to 1.5%. Superoxide dismutase and glutathione peroxidase levels increased (p < 0.05) in the broiler chickens fed a 1.5% MLM supplemented diet, compared to those fed the control and other diets. Meat cholesterol of the chickens fed 1.0%, and 1.5% MLM supplemented diets were lower (p < 0.05) than the experimental birds fed the rest diets. In conclusion, the 1.5 % MLM dietary supplementation improves body weight gain, reduces the serum cholesterol concentration, increases the serum superoxide dismutase and glutathione peroxidase activities of the chickens and reduced the meat cholesterol.
Responsabilidade enunciativa e imputação em cartas de amor
Authors: Catelão Evandro de Melo , Sousa Erika Larissa Santos Sousa
Published: June 2022

Buscamos neste artigo apresentar uma análise quanto aos aspectos argumentativos como a sequencialidade, emergência de acordo com o preferível e marcação da responsabilidade enunciativa/ponto de vista em uma troca de cartas de amor encontradas em inquéritos policiais de suicídio. Para tanto, utilizamos o conceito de responsabilidade enunciativa acrescido nas noções de prise en charge e imputação no sentido de observar marcas argumentativas e definidoras do gênero. Na análise argumentativa partimos da noção de valor embasada em pressupostos da retórica e nova retórica, também presente na Teoria da Argumentação no Discurso. Dados das análises permitiram identificar certo direcionamento quanto à emergência da utilização de valores entre as práticas discursivas e enunciativas como tentativa de possível estabelecimento de acordo sob a ação de linguagem visada (nível N5). Acreditamos que para uma análise do nível da enunciação (N7), a correlação com o conceito de acordo e os acréscimos das noções de imputação e prise en charge funcionaram como critério para observação das representações discursivas e incursões dos PdVs nas trocas de cartas com temática amorosa.