Factor structure and psychometric properties of the Children's Scale for Hostility and Aggression: Reactive/Proactive (C-SHARP)

Poster: 1st Place (The Ohio State University Edward F. Hayes Graduate Research Forum)Although the problem of aggression in children with developmental disabilities is pervasive, there are currently no scales adequate for its measurement. This study explored the factor structure and psychometric characteristics of the Children’s Scale for Hostility and Aggression, Reactive/Proactive (C-SHARP). The C-SHARP comprises 58 items with two Likert scales: (a) the Problem Scale, where frequency and severity are rated, and (b) the Provocation Scale, where the degree of proactivity or reactivity is evaluated. The ratings of 365 children with developmental disability (mean age, 12.5 years; 60.5% male) were subjected to exploratory factor analysis. The most appropriate factor structure, judged by face validity and measures of fit and reliability, left 48 items on five factors: (I) Verbal Aggression, (II) Bullying, (III) Covert Aggression, (IV) Hostility, and (V) Physical Aggression. The fit of the model was adequate (RMSEA = 0.071), and the internal consistency of the subscales was high (average α = 0.87). The validity of the C-SHARP was explored using demographic, diagnostic, and medication variables. Several validation groups differed in expected ways on C-SHARP subscales scores, supporting the convergent and divergent validity of the instrument. Interrater reliability was extremely high on the Problem Scale (ICCs ranged from 0.67 for Hostility, to 0.91 for Bullying); although interrater reliability was considerably lower for the Provocation Scale. Overall, the C-SHARP appears to have good reliability and validity, and has promise as a useful tool in the assessment of children with developmental disabilities.No embarg

Assessment of Control Charts for Evaluating Dynamic Accuracy of Forest Growth Models

The purpose of this study was to determine if control charts are an effective tool to identify trends in forest growth and yield model accuracy. Accurate forest growth and yield models are important for projecting future forest composition. However, environmental factors have the potential to make forest growth models created from historic data inaccurate. Control charts in this study determine if forest growth predictions fall within confidence limits established for historic growth at a number of points in time. Two data sets were used in this study: the first was a Continuous Forest Inventory (CFI) from three tracts at the University of Tennessee Cumberland Research Station and the second data set was Forest Inventory and Analysis data collected by the U.S. Forest Service. The CFI plots represented a stand level data set measured every 5 years from 1962-1977 and revisited for a re-measurement in 2009. The FIA plots were a regional data with subsets of plots measured annually from 1999-2008. The FIA data set was limited to plots of the oak/hickory forest type from Tennessee, Alabama, and Georgia. Two forest growth and yield models were used to predict growth: (1) WinYield and (2) Forest Vegetation Simulator (FVS). The two different data sets were used with both FVS and WinYield to evaluate control charts using different models ad at different spatial and temporal scales. The data sets were also subset by site index, stand age, stocking percent, aspect, and species composition to determine if control charts could identify changes in model accuracy for forests subjected to different growing conditions. The CFI and FIA data had short growth predictions and control charts indicated that there were no trends affecting accuracy. The CFI data also had a long growth prediction of 32 years and the control charts found that the predictions using WinYield and FVS were inaccurate, indicating that there may be a trend causing inaccuracy in the model

Multitaper power spectrum estimation and thresholding: Wavelet packets versus wavelets

Published versio

First-phase Juvenile Rearing of the Sea Cucumber Holothuria scabra in Eastern Samar, Philippines

Experiments were conducted to optimize the nursery rearing methods for the sea cucumber Holothuria scabra at the BFAR-GMFDC, Eastern Samar. The growth performance and survivorship of juveniles were compared in different locations, seasonality, stocking densities, and rearing media. For the experiments on location and seasonality, nursery rearing was conducted in Guiuan and in Salcedo, Eastern Samar during April-May, July-August, and September-October 2018. The mean total weight gain (TWG) and specific growth rate (SGR) of juveniles were significantly better in Guiuan (3.78 g and 13.09%.d-1, respectively) compared to Salcedo (1.997 g and 11.70%.d-1, respectively) (p 0.05). Predatory crabs and parasitic isopods (Cymodoce sp.) infiltrated the net cages in Guiuan, which increased the mortality of juveniles. Highest growth and survivorship were observed during dry months in April-May 2018 (TWG of 3.71 g, survival of 71.39%) but were lowest during the wet season in September-October 2018 (TWG of 2.26 g, survival of 70.89%). However, the growth and survival results did not significantly differ among different months (p>0.05). For the experiment on stocking density, juveniles stocked at 300 ind./cage had the highest growth (TWG of 5.19 g, SGR of 13.86%.d-1) while juveniles at 1000 ind./cage had the lowest growth (TWG of 1.28 g, SGR of 10.70%.d-1) (p 0.05). In terms of rearing medium, growth was better in floating net cages (TWG of 2.60 g, SGR of 11.67%.d-1) compared to indoor tanks (TWG of 0.18 g, SGR of 6.38%.d-1). However, indoor tanks yielded higher survival rate (67.83%) than floating net cages (56.11%) (p>0.05). Higher mortality in net cages was caused by intruding predators and fluctuations in water quality

Immersive learning: Enhancing student engagement using 360° photography and unity simulations in undergraduate medical science courses

Student engagement is a crucial factor that can influence both the student learning experience and student success. However, in response to the recent COVID-19 pandemic, learning for tertiary students had been affected as many universities introduced fully online learning. This shift to online learning has had an adverse effect on engagement for many students. Immersive online learning modules, including interactive simulations, have potential to enhance motivation and engagement. This study aimed to compare existing online standard module lessons (2D virtual laboratory spaces) with platforms and conditions that apply immersive virtual learning environments (360o photography and desktop Unity 3D immersive simulations) and evaluate the effects on the student learning experience and performance. Novel virtual learning environments were created to pilot within a third-year undergraduate pathology course, at the University of New South Wales. The study was conducted using a multimodal approach with two different pathology undergraduate cohorts from 2022 to 2023. Each cohort was randomly divided into two groups to trial a different learning environment. In 2022, we compared an existing online standard module (developed using a HTML platform, H5P) with a 360o laboratory space. In 2023, we compared the existing standard online module with an immersive 3D Unity laboratory simulation. Student engagement and performance was assessed across all learning environments using pre- and post-simulation knowledge/transfer tests, and Qualtrics feedback surveys. Qualitative and quantitative data obtained were used to compare factors such as student motivation, engagement, and confidence within the different learning environments. In feedback surveys, students reported being engaged and immersed in both the 360o environments and in the 3D Unity simulations. However, students also reported navigation issues within the virtual learning environments in addition to reporting cognitive overload. Quantitative data revealed an increase in performance on knowledge/transfer tests regardless of the learning environment type, but the level of improvement between each group was not significantly different. Further data revealed an overall improvement in understanding of content for all learning environments, but there was a greater increase with the standard module groups. This could be attributed to possible cognitive overload experienced within the new virtual learning environments. As reported in this study, despite the engaging/immersive properties of the 360o/Unity environments, newly developed learning simulations may overload or distract the learner. Therefore, further work is required on immersive learning environment factors that promote student engagement and motivation. These promoting factors could also be incorporated into face-to-face learning so that key elements for student engagement are aligned in all learning environments

O papel do trabalho na transformação do homem em macaco : estudo sobre a disciplina no trabalho do jogador profissional do Sertãozinho F. C.

Orientador: Ademir GebaraDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Educação FisicaResumo: O objetivo do estudo foi formular uma referência analítica para diferenciar o esporte praticado por lazer, do esporte inserido no âmbito da produção do espetáculo desportivo. As categorias desenvolvidas visavam especificar elementos do trabalho contidos na disciplina sob a qual é submetido o jogador profissional. As características objetivas (hierarquia de funções, correspondida à outra de salários, introdução de técnicas que limitam a criatividade nos esquemas de ação motriz, mercadorização da força de trabalho, sujeição à uma autoridade e interesses extrínsecos à lógica do jogo, controle de horários e hábitos) foram identificadas através dos depoimentos dos jogadores do Sertãozinho F.C. Na fala destes jogadores encontramos não só a matéria para a pesquisa empírica, como percebemos a função ocupada pela ideologia na construção da autoimagem do grupo e na perpetuação de uma prática profissional desqualificada socialmente onde o corpo é o instrumento de trabalhoAbstract: Not informed.MestradoMestre em Educação Físic

Competencias Digitales Docentes para la formación universitaria de Profesores de Educación Básica (educación primaria) en Chile

Las preguntas de investigación que subyacen el presente trabajo son: ¿Qué competencias digitales docentes está demandando actualmente el ejercicio de la pedagogía en la Educación Básica (Educación primaria) de Chile? ¿Cuál es la autopercepción sobre el dominio de esas competencias digitales docentes en los estudiantes de la carrera de Pedagogía Básica (docentes de Educación Primaria en formación) en universidades de Chile?¿Qué competencias digitales docentes se observan en estos estudiantes de programas de formación inicial de Pedagogía Básica al enfrentarlos a situaciones semejantes a contextos reales

Easy Creation of Semantics-Enhanced Digital Artwork Collections

In this paper we propose an approach for cost-effective employing of semantic technologies to improve the efficiency of searching and browsing of digital artwork collections. It is based on a semi-automatic creation of a Topic Map-based virtual art gallery portal by using existing Topic Maps tools. Such a ‘cheap’ solution could enable small art museums or art-related educational programs that lack sufficient funding for software development and publication infrastructure to take advantage of the emerging semantic technologies. The proposed approach has been used for creating the WSSU Diggs Gallery Portal

Growth, Development and Survival of Holothuria scabra Larvae in Different Microalgal Regimens and Water Rearing Media

Different aspects of Holothuria scabra larval production, including feeding regimen and water treatment, were investigated under experimental conditions. This study highlights the optimization of techniques and simplification of the requirements of sea cucumber larval rearing. The growth performance, development, and survivorship of H. scabra larvae were measured to assess which treatment provides optimum results. Chaetoceros gracilis (Cgr) and Chaetoceros calcitrans (Cc) were administered singly and in combination (Cgr-Cc) to sea cucumber larvae. Growth was highest in combined Cgr-Cc feed with mean final length of 2088µm, followed by Cc with 1855 µm and Cgr with 1800 µm, but with no significant difference (p > 0.05). Similarly, survival rates among treatments were not statistically different (Cgr-Cc = 2.23%; Cgr = 1.6%; Cc = 1.3%) (p > 0.05). However, larval development was better in combined Cgr-Cc and Cc single diet, with 90% and 100% composition of early juveniles on Day 30. Slower development was observed in Cgr single feed, with only 90% early juveniles observed later on Day 35. Different microalgal concentration of Cgr-Cc (10,000, 30,000 and 50,000 cells.mL-1) were also tested. Juveniles (~3 mm) yielded from 50,000 cells.mL-1 microalgal concentrations were five times larger than when fed at 10,000 cells.mL-1 microalgae. Development of larvae was also faster in 50,000 cells.mL-1, yielding harvestable juveniles in 25 days. However, water replenishment in tanks with high microalgal density should also be regularly done at 50-70% rate in two days interval to mitigate fouling. In addition, sand-filtered, chlorinated, and UV-treated seawater were also tested for their efficiency as culture media. Growth rates were significantly highest in sand-filtered seawater (68.3 µm.d-1), followed by UV-treated seawater (52.4 µm.d-1), and by chlorinated seawater (34.8 µm.d-1) (p < 0.05). Larval development did not differ in sand-filtered and UV-treated seawater, yielding ~1 mm juveniles as early as Day 25. Likewise, sand-filtered seawater rendered highest survival of larvae (10.24%) followed by UV-treated seawater (6.24%); chlorinated seawater yielded lowest (2.60%) (p < 0.05). Although a sterilization process is advised, findings on sand-filtered seawater as a rearing medium were notable

Breeding and Larval Rearing of Asian Moon Scallop Amusium pleuronectes in Eastern Samar, Philippines

Asian moon scallop, Amusium pleuronectes, is among the most common commercially harvested scallop in the Philippines. This study investigated suitable conditioning methods, induced spawning, and documented scallop larval development at the Marine Fisheries Research and Development Center (MFRDC) Guiuan, Eastern Samar. Scallops held in tanks with flow-through water system without substrate yielded high survival rate of 48.06 ± 5.95%. Optimum water temperature was 28-29°C for maintaining scallops. Isochrysis galbana and Chaetoceros calcitrans were suitable microalgal feed for A. pleuronectes consumed at 7,388,888 cells min-1 per scallop. These significant results were applied in maintaining scallops at the hatchery. As a result, scallops with an average 19.8 mm shell length (SL) reached 37.5 mm SL within four months with a survival rate of 96.57 ± 2.04%, average daily growth rate (ADGR) of 0.13 ± 0.04 mm.day-1, and specific growth rate (SGR) of 3.92 ± 1.31%.d-1. Natural spawning was successful under controlled conditions while induced spawning trial through thermal stimulation, food shock, sexual stimulation, and serotonin injection resulted unsuccessful release of sperm and eggs. The estimated number of fertilized eggs per spawning ranged from 0.22-1.4 million. Fertilized eggs appeared spherical and dark in color with 54.2-62.57 µm in diameter. After nine hours, the larvae developed into trochophore stage with 59.08-84.4 µm in length. D-veliger with 120.37-157.07µm shell length developed after 24 hours. Development of the early umbone stage was reached on day 5; and on day 7, the umbo larvae become well-developed with shell length of 135.45-173.36 µm. On day 9, pedi-veligers were observed in the culture. Spat grew 312.41-509.48 µm on day 16 and survived until four months with final shell length of 4-10 mm. For the larval rearing, stocking density of A. pleuronectes larvae observed highest survival rate of 0.04 ± 0.03% at 200 larvae/L, while no larvae survived at 800 larvae/L due to contamination of protozoans in the culture medium