Physical activity barriers and team cohesiveness of Angeles City volleyball players during the pandemic

Physical activity barriers, particularly for the volleyball players of Angeles City, are one of the elements that hinder team cohesiveness for all athletes during this pandemic. According to research, there are many areas where the pandemic influences physical activity and team cohesiveness. The purpose of this study is to ascertain whether physical activity barriers have a direct impact on volleyball players' ability to work together as a team. Based on related literature on how it affects physical activity barriers, an online Cross-Sectional, Descriptive-Survey research was conducted on the volleyball players around Angeles City. Respondents were chosen based on specific qualities and criteria and provided unbiased selection. In analyzing the data, the pandemic practices and communication are the areas that impact the volleyball players in the middle of the pandemic. The findings showed that physical activity barriers have no association with the team cohesiveness of the volleyball player. It is suggested to the trainers, coaches, school administrators, and players that they can apply the findings of this study to their training amidst this pandemic. For further validation, the same research is needed to identify the other areas or factors that affect physical activity barriers to team cohesiveness

Synthesis and Chemiluminescent Properties of Amino-Acylated luminol Derivatives Bearing Phosphonium Cations

[EN] The monitoring of reactive oxygen species in living cells provides valuable information on cell function and performance. Lately, the development of chemiluminescence-based reactive oxygen species monitoring has gained increased attention due to the advantages posed by chemiluminescence, including its rapid measurement and high sensitivity. In this respect, specific organelle-targeting trackers with strong chemiluminescence performance are of high importance. We herein report the synthesis and chemiluminescence properties of eight novel phosphonium-functionalized amino-acylated luminol and isoluminol derivatives, designed as mitochondriotropic chemiluminescence reactive oxygen species trackers. Three different phosphonium cationic moieties were employed (phenyl, p-tolyl, and cyclohexyl), as well as two alkanoyl chains (hexanoyl and undecanoyl) as bridges/linkers. Synthesis is accomplished via the acylation of the corresponding phthalimides, as phthalhydrazide precursors, followed by hydrazinolysis. This method was chosen because the direct acylation of (iso)luminol was discouraging. The new derivatives' chemiluminescence was evaluated and compared with that of the parent molecules. A relatively poor chemiluminescence performance was observed for all derivatives, with the isoluminol-based ones being the poorest. This result is mainly attributed to the low yield of the fluorescence species formation during the chemiluminescence oxidation reaction.This project was financially supported by the European Union's Horizon 2020 framework program for research and innovation under grant agreement no. 712921, as well as a Greek State Scholarships Foundation (I.K.Y.) fellowship to A.P.Pantelia, A.; Daskalaki, I.; Cuquerella Alabort, MC.; Rotas, G.; Miranda Alonso, MÁ.; Vougioukalakis, GC. (2019). Synthesis and Chemiluminescent Properties of Amino-Acylated luminol Derivatives Bearing Phosphonium Cations. Molecules. 24(21):1-16. https://doi.org/10.3390/molecules24213957S116242

Una evaluación de la escala sobre el miedo a la COVID-19 en docentes filipinos profesionales.

The global Coronavirus Disease 2019 (COVID-19) crisis has enormously induced psychological impacts on humans like fear. Considering this particular concern, there is a need to test instruments used to measure such psychological impact. This study aimed to evaluate the psychometric properties of the Fear of COVID-19 (FCV-19) Scale originally developed by Ahorsu et al. (2020). A sample of 1,060 K to 12 professional teachers from Mindanao, Philippines were selected to participate in the online survey. The preliminary analysis showed a high level of perceived fear of COVID-19 in the respondents of this study. The results of the series of tests are encouraging as the FCV-19 Scale generated a robust construct validity for both one- and two- factor structure models and a very high internal consistency complemented by strong inter-item correlations and item-total correlations. The results further supported the concurrent validity of the FCV-19 Scale with selected COVID-19-related characteristics significantly predicting fear of COVID-19. Overall, this paper provides an assessment of the fear of COVID-19 in a sample of professional teachers and the properties of the FCV-19 Scale in a particular context. The FCV-19 Scale, a seven-item scale, is a valid and reliable measure that can be used to assess the fear of COVID-19 of Filipino teachers.La crisis mundial de la enfermedad del coronavirus 2019 (COVID-19) ha inducido enormemente impactos psicológicos en los humanos como el miedo. Teniendo en cuenta esta preocupación particular, existe la necesidad de probar los instrumentos utilizados para medir dicho impacto psicológico. Este estudio tuvo como objetivo evaluar las propiedades psicométricas de la Escala Miedo a COVID-19 (FCV-19) desarrollada originalmente por Ahorsu et al. (2020). Se seleccionó una muestra de 1.060 profesores profesionales de K a 12 de Mindanao, Filipinas, para participar en la encuesta en línea. El análisis preliminar mostró un alto nivel de miedo percibido a COVID-19 en los encuestados de este estudio. Los resultados de la serie de pruebas son alentadores ya que la Escala FCV-19 generó una validez de constructo robusta para modelos de estructura de uno y dos factores y una consistencia interna muy alta complementada por fuertes correlaciones entre ítems y correlaciones ítem-total. Los resultados respaldaron aún más la validez concurrente de la escala FCV-19 con características seleccionadas relacionadas con COVID-19 que predicen significativamente el miedo al COVID-19. En general, este artículo proporciona una evaluación del miedo al COVID-19 en una muestra de profesores profesionales y las propiedades de la Escala FCV-19 en un contexto particular. La escala FCV-19, una escala de siete ítems, es una medida válida y confiable que puede usarse para evaluar el miedo al COVID-19 de los maestros filipinos

Toward a Posthuman Education

The text of our manifesto will introduce posthumanism to a curriculum studies audience and propose new directions for curriculum theory and educational research more broadly. Following a description of what is variously called the “posthuman condition” or the “posthuman era,” our manifesto outlines the main theoretical features of posthumanism with particular attention to how it challenges or problematizes the nearly ubiquitous assumptions of humanism. In particular, we focus on how posthumanism responds to the history of Western humanism’s justification and encouragement of colonialism, slavery, the objectification of women, the thoughtless slaughter of non-human animals, and ecological devastation. We dwell on the question of how posthumanism may alter our understanding of the claim “education is political,” since humanism has shaped our very notions of “education” and “politics.” After outlining posthumanist discourse generally, and detailing the conceptual challenges it poses for education, we propose a list of possible new avenues for curriculum studies research opened up by posthumanism

Compliance with occlusion therapy for childhood amblyopia

Purpose. Explore compliance with occlusion treatment of amblyopia in the Monitored and Randomized Occlusion Treatment of Amblyopia Studies (MOTAS and ROTAS), using objective monitoring. Methods. Both studies had a three-phase protocol: initial assessment, refractive adaptation, and occlusion. In the occlusion phase, participants were instructed to dose for 6 hours/day (MOTAS) or randomized to 6 or 12 hour/day (ROTAS). Dose was monitored continuously using an occlusion dose monitor (ODM). Results. One hundred and fifty-two patients (71 male, 81 female; 122 Caucasian, 30 non-Caucasian) of mean ± SD age 68 ± 18 months participated. Amblyopia was defined as an interocular acuity difference of at least 0.1 logMAR and was associated with anisometropia in 50, strabismus in 44, and both (mixed) in 58. Median duration of occlusion was 99 days (interquartile range 72 days). Mean compliance was 44%, mean proportion of days with no patch worn was 42%. Compliance was lower (39%) on weekends compared with weekdays (46%, P = 0.04), as was the likelihood of dosing at all (52% vs. 60%, P = 0.028). Compliance was lower when attendance was less frequent (P < 0.001) and with prolonged treatment duration (P < 0.001). Age, sex, amblyopia type, and severity were not associated with compliance. Mixture modeling suggested three subpopulations of patch day doses: less than 30 minutes; doses that achieve 30% to 80% compliance; and doses that achieve around 100% compliance. Conclusions. This study shows that compliance with patching treatment averages less than 50% and is influenced by several factors. A greater understanding of these influences should improve treatment outcome. (ClinicalTrials.gov number, NCT00274664.

Miedo al COVID-19 y agotamiento de la Enseñanza online en los Maestros Filipinos (Infantil-12 años)

The COVID-19 crisis practically magnified the normal fear of people, bringing other negative psychological outcomes such as job burnout. Building on this assumption, this paper aimed to compare fear of COVID-19 and remote teaching burnout across sample characteristics and relate fear of COVID-19 to the remote teaching burnout. Following comparative and correlational research designs, a sample of 1069 K to 12 Filipino teachers was selected to participate in the online survey. The data were analyzed using descriptive and inferential statistics. The results showed that the teachers have a high level of fear of COVID-19 and a moderate level of remote teaching burnout. Furthermore, COVID-19 fear of teachers did not significantly differ across all sample characteristics tested; however, remote teaching burnout significantly differed across age, monthly income, educational attainment, and teaching experience, except gender. It was further revealed that there is a positive and moderate significant relationship between fear of COVID-19 and remote teaching burnout. This linear association implies that as fear of COVID-19 of teachers increases, their remote teaching burnout also increases. Considering the current persistence of COVID-19 cases and the role of teachers in the anticipated recovery phase of education, the results of the study indicate the urgent attention of education authorities to develop measures to address the needs of teachers who may have psychological issues brought by fear of COVID-19 and remote teaching burnout.La crisis de COVID-19 prácticamente magnificó el miedo normal de las personas, trayendo más resultados psicológicos negativos como el agotamiento laboral. Partiendo de esta suposición, este documento tuvo como objetivo comparar el miedo al COVID-19 y el agotamiento de la enseñanza remota a través de las características de la muestra y relacionar el miedo al COVID-19 con el agotamiento de la enseñanza remota. Siguiendo diseños de investigación comparativos y correlacionales, se seleccionó una muestra de 1069 profesores filipinos (infantil-12 años)para participar en la encuesta en línea. Los datos se analizaron mediante estadística descriptiva e inferencial. Los resultados mostraron que los docentes tienen un alto nivel de miedo al COVID-19 y un nivel moderado de agotamiento de la enseñanza a distancia. Además, el miedo de COVID-19 a los maestros no difirió significativamente en todas las características de la muestra evaluadas; sin embargo, el agotamiento de la enseñanza a distancia difirió significativamente según la edad, los ingresos mensuales, el nivel educativo y la experiencia docente, excepto el género. Además, se reveló que existe una relación significativa positiva y moderada entre el miedo al COVID-19 y el agotamiento de la enseñanza a distancia. Esta asociación lineal implica que a medida que aumenta el miedo al COVID-19 de los docentes, también aumenta el desgaste de la enseñanza a distancia. Considerando la actual persistencia de los casos de COVID-19 y el papel de los docentes en la fase de recuperación anticipada de la educación, los resultados del estudio indican la atención urgente de las autoridades educativas para desarrollar medidas para atender las necesidades de los docentes que puedan tener problemas psicológicos planteados por miedo al COVID-19 y al agotamiento de la enseñanza a distancia.Universidad Pablo de Olavid

Synthesis and chemiluminescent properties of amino-acylated luminol derivatives bearing phosphonium cations

The monitoring of reactive oxygen species in living cells provides valuable information on cell function and performance. Lately, the development of chemiluminescence-based reactive oxygen species monitoring has gained increased attention, due to the advantages posed by chemiluminescence, including its rapid measurement and high sensitivity. In this respect, specific organelle-targeting trackers with strong chemiluminescence performance are of high importance. We herein report the synthesis and chemiluminescence properties of eight novel phosphonium-functionalized amino-acylated luminol and isoluminol derivatives, designed as mitochondriotropic chemiluminescence reactive oxygen species trackers. Three different phosphonium cationic moieties were employed (phenyl, p-tolyl, and cyclohexyl), as well as two alkanoyl chains (hexanoyl and undecanoyl) as bridges/linkers. Synthesis is accomplished via the acylation of the corresponding phthalimides, as phthalhydrazide precursors, followed by hydrazinolysis. This method was chosen because the direct acylation of (iso)luminol was discouraging. The new derivatives’ chemiluminescence was evaluated and compared with that of the parent molecules. A relatively poor chemiluminescence performance was observed for all derivatives, with the isoluminol-based ones being the poorest. This result is mainly attributed to the low yield of the fluorescence species formation during the chemiluminescence oxidation reaction

High efficiency blue organic light-emitting diodes with below-bandgap electroluminescence

Blue organic light-emitting diodes require high triplet interlayer materials, which induce large energetic barriers at the interfaces resulting in high device voltages and reduced efficiencies. Here, we alleviate this issue by designing a low triplet energy hole transporting interlayer with high mobility, combined with an interface exciplex that confines excitons at the emissive layer/electron transporting material interface. As a result, blue thermally activated delay fluorescent organic light emitting diodes with a below-bandgap turn-on voltage of 2.5 V and an external quantum efficiency of 41.2% were successfully fabricated. These devices also showed suppressed efficiency roll-off maintaining an EQE of 34.8% at 1000 cd m-2. Our approach paves the way for further progress through exploring alternative device engineering approaches instead of only focusing on the demanding synthesis of organic compounds with complex structures

The antenatal diagnosis of placenta accreta

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/102085/1/bjo12557.pd

Building a functionalizable, potent chemiluminescent agent: A rational design study on 6,8-substituted luminol derivatives

Luminol is a prominent chemiluminescent (CL) agent, finding applications across numerous fields, including forensics, immunoassays, and imaging. Different substitution patterns on the aromatic ring can enhance or decrease its CL efficiency. We herein report a systematic study on the synthesis and photophysics of all possible 6,8-disubstituted luminol derivatives bearing H, Ph, and/or Me substituents. Their CL responses are monitored at three pH values (8, 10, and 12), thus revealing the architecture with the optimum CL efficiency. The most efficient pattern is used for the synthesis of a strongly CL luminol derivative, bearing a functional group for further, straightforward derivatization. This adduct exhibits an unprecedented increase in chemiluminescence efficiency at pH=12, pH=10, and especially at pH=8 (closer to the biologically-relevant conditions), compared to luminol. Complementary work on the fluorescence of the emissive species, as well as quantum chemistry computations are employed for the rationalization of the observed results