Utilization of Scholarly Journal Articles in the Teaching and Learning of Teacher Education Courses

The usage of scholarly journal articles in the academe is now gaining attention to cope with the ever dynamic and evolving teaching and learning processes. However, the use implies possible potential usage only because what is measured is the number of views and downloads of the articles. This paper explored how the teacher education faculty and students utilized scholarly journal articles in the teaching and learning of professional education courses. The study also determined the challenges in using these primary sources and documented ways of overcoming them. Data were organized and analyzed using a thematic narrative technique of Riesman as the analytical framework. The inquiry was participated by six faculty and six students from the College of Education at a state university in Northern Mindanao in the first semester of the school year 2019-2020. The necessary protocol was followed, and ethical considerations were secured before the conduct of the study. An informed consent form was presented to each participant before they signed it, signifying that they are not forced to participate in the study. The faculty had a focus group discussion, while the students had a face-to-face interview with the researchers. Emerging themes revealed that scholarly journal articles were utilized by exposing learners to varied writings, enriching course content and learning, exposing them to process learning, preparing learners for classroom engagement, guiding learners to produce outputs, and allowing learners to acquire updates. The inquiry reported challenges in terms of the capability of the learners, interest and perception of learners, and the journal itself and its contents. Documented ways of overcoming these challenges include time management, frequency of use, selection criteria, and checking the author's background

Direct Slicing of STEP Based NURBS Models for Solid Freeform Fabrication

Direct slicing of CAD models to generate process planning instructions for solid freeform fabrication may overcome inherent disadvantages of using STL format in terms of the process accuracy, ease of file management, and incorporation of multiple materials. This paper will present the results of our development of a direct slicing algorithm for layered freeform fabrication. The direct slicing algorithm was based on a neutral, international standard (ISO 10303) STEP-formatted NURBS geometric representation and is intended to be independent of any commercial CAD software. The following aspects of the development effort will be presented: 1) Determination of optimal build direction based upon STEP-based NURBS models; 2) Adaptive subdivision of NURBS data for geometric refinement; and 3) Ray-casting slice generation into sets of raster patterns. Feasibility studies applying the direct slicing algorithm to example models and the generation of fabrication planning instructions involving multi-material structures will also be presented.Mechanical Engineerin

Employment, Employability and Competencies of the Bachelor of Secondary Education Graduates

Tracing graduates has become an imperative for higher education institutions much more during the pandemic. This tracer determined the employment and employability status of the 2019 BSE graduates and identified the competencies they adequately acquired and deemed vital for work. It used descriptive design, and data were collected from the 103 graduates through a google form with open and closed-ended questions administered between November and December 2020. Results revealed that most of the graduates had been employed in teaching and teaching-related jobs but mostly in contractual arrangements within the first and second six months after graduation. Many had their first jobs with meager salaries from the private sector. Communication, pedagogy, information communication technology, time management, and flexibility were the top competencies they adequately acquired and were beneficial in work. The study concluded that these graduates had acquired 21st-century skills in their respective degree programs. These results have corresponding implications for future research in confirming the most employable skills in secondary teaching. As recommended, classroom instruction might emphasize the development of these skills. Eventually, these become the competitive advantage and employability capitals of future graduates. Administering the licensure examination and the release of its results can be done within the first three months after graduation to lessen the cost of waiting

\u3ci\u3eAquastella gen. nov.\u3c/i\u3e: A new genus of saprolegniaceous oomycete rotifer parasites related to \u3ci\u3eAphanomyces\u3c/i\u3e, with unique sporangial outgrowths

The oomycete genus Aquastella is described to accommodate two new species of parasites of rotifers observed in Brooktrout Lake, New York State, USA. Three rotifer species – Keratella taurocephala,Polyarthra vulgaris, and Ploesoma truncatum – were infected, and this is the first report of oomycete infection in these species. Aquastella attenuata was specific to K. taurocephala and Aquastella aciculariswas specific to P. vulgaris and P. truncatum. The occurrence of infections correlated with peak host population densities and rotifers were infected in the upper layers of the water column. Sequencing of 18S rRNA and phylogenetic analysis of both species placed them within the order Saprolegniales, in a clade closely related to Aphanomyces. The Aquastella species were morphologically distinct from other rotifer parasites as the developing sporangia penetrated out through the host body following its death to produce unique tapered outgrowths. Aquastella attenuata produced long, narrow, tapering, finger-like outgrowths, whilst A. acicularis produced shorter, spike-like outgrowths. We hypothesize that the outgrowths serve to deter predation and slow descent in the water column. Spore cleavage was intrasporangial with spore release through exit tubes. Aquastella attenuata produced primary zoospores, whereas A. acicularisreleased spherical primary aplanospores, more typical of other genera in the Aphanomyces clade

Stuck in a Lockdown: Filipino Students' Odyssey of Resilience

The COVID-19 outbreak in the Philippines forced schools to close. Many Filipino students were stranded in their dormitories and boarding houses due to government-imposed lockdowns. As the study's impetus, the researchers explored the phenomenon of stranded students during a pandemic. A transcendental phenomenological inquiry was conducted in Northern Mindanao, Philippines, to disclose the experiences of six stranded students. Stranded students' lifeworld throughout the lockdown was documented through phenomenological interviews. The phenomenological reduction technique was used to transcribe and analyze the data. Provisional codes were used to classify critical statements into themes for the initial analysis of the interview data. The research revealed the themes of (a) groping in the dark, (b) journeying towards the light, and (c) welcoming the breaking dawn. The various stages of reality in the life of the stranded students are shown in these topics. They relate the story of how their confinement experience taught them to be resilient, which covers resilience as a process. The paper discusses numerous pedagogical implications of the phenomenon

Inflammation-induced effector CD4+ T cell interstitial migration is alpha-v integrin dependent

Leukocytes must traverse inflamed tissues to effectively control local infection. Although motility in dense tissues appears to be integrin-independent actin-myosin based, during inflammation changes to the extracellular matrix (ECM) may necessitate distinct motility requirements. Indeed, we found that T cell interstitial motility was critically dependent on RGD-binding integrins in the inflamed dermis. Inflammation-induced deposition of fibronectin was functionally linked to increased αv integrin expression on effector CD4+ T cells. Using intravital multi-photon imaging, we found that CD4+ T cell motility was dependent on αv expression. Selective αv blockade or knockdown arrested TH1 motility in the inflamed tissue and attenuated local effector function. These data show a context-dependent specificity of lymphocyte movement in inflamed tissues that is essential for protective immunity

Effects of power-law entrainment on bubble fragmentation cascades

This thesis considers the evolution of the bulk bubble-size distribution (,) of large bubbles (Weber number >> 1) under free-surface entrainment described generally by an entrainment size distribution () with power-law slope and large-radius cutoff ₘₐₓ. The focus is the interaction between turbulence-driven fragmentation and free-surface entrainment, and, for simplicity, other mechanisms such as degassing, coalescence, and dissolution are ignored. Of special interest is the equilibrium bulk bubble-size distribution [chemical formula], with local power-law slope [chemical formula], and the time scale to reach this equilibrium after initiation of entrainment. For bubbles with radii −4) and a strong ( ≤ −4) injection regime where [chemical formula] and [chemical formula], respectively. The weak regime provides a general explanation for the commonly observed −10/3 power law originally proposed by Garrett et al. (J. Phys. Oceanogr., vol. 30 (9), 2000, pp. 2163–2171), and suggests that different weak entrainment mechanisms can all lead to this result. For [chemical formula] exhibits a steepening deviation from a power law due to fragmentation and entrainment, similar to what has been previously observed, but here absent other mechanisms such as degassing. The evolution of (,) to [chemical formula] is characterized by the critical time [chemical formula], where is the turbulence dissipation rate and [chemical formula] is a new constant that quantifies the dependence on the size distribution of daughter bubbles created during fragmentation. For typical breaking waves, [chemical formula] can be quite small, limiting the time [chemical formula] when direct measurement of (,) might provide information about the underlying entrainment size distribution.S.M

Differentiated Scaffolding Strategies in Triangle Congruence: Their Effects on Learners’ Academic Performance and Confidence in Mathematics

The benefits of differentiated scaffolding strategies on boosting academic performance and confidence in Mathematics learners were studied in this paper. Quasi-experimental research was conducted at a state university’s Secondary School Laboratory in the Philippines. It involved sixty Grade 8 learners, 30 from the control group and 30 from the experimental group. A panel of specialists assessed developed lessons on triangle congruence topics and the academic performance test and confidence scale. The developed lesson, test, and scale were improved after the panel of experts’ comments and suggestions were considered. The instruments were pilot tested and came out reliable; the academic performance test had a Cronbach alpha of 0.807, while the confidence scale in Mathematics had a Cronbach alpha of 0.810. In addition, the mean, standard deviation, One-way Analysis of Covariance (ANCOVA), and Pearson Product Moment Correlation were used to analyze the data. The findings demonstrated that when learners were taught using differentiated scaffolding strategies, their academic performance significantly increased at the Fairly Satisfactory level. However, when they were taught using conventional teaching strategies, their academic performance remained at Did Not Meet Expectations. The performance outcomes of both groups were significantly different. Also, there was no significant difference in learners’ confidence between the two groups when compared. Furthermore, there was a significant link between academic performance and confidence in Mathematics among students taught using differentiated scaffolding methodologies. Thus, concerns about increasing learners’ mathematical literacy may be addressed with differentiated scaffolding strategies

Mode of action of Pseudomonas fluorescens strain CL145A, a lethal control agent of dreissenid mussels (Bivalvia: Dreissenidae)

International audiencePseudomonas fluorescens strain CL145A (Pf-CL145A) has demonstrated promise as an efficacious and selective agent for the control of macrofouling Dreissena spp. mussels. Herein, we report trials to investigate the mode of action of this biocontrol agent against Dreissena polymorpha, the zebra mussel. Exposure to dead Pf-CL145A cells achieved the same temporal pattern and percentage mussel mortality as did live cells, thereby excluding infection as the possible lethal mode of action. Histological analysis revealed pathologies consistent with the cause of death being intoxicating natural products associated with Pf-CL145A cells. Irrespective of whether the mussels were exposed to live or dead Pf-CL145A cells, examination of tissues from histological sections revealed that: (1) at the end of the 24-h treatment period there was massive hemocyte infiltration into the lumina of both the digestive gland and stomach; and (2) mussel deaths occurred following lysis and necrosis of the digestive gland and sloughing of stomach epithelium. These trials provide strong evidence that the lethal mode of action of Pf-CL145A is intoxication