Teachers’ Practices in Curriculum and Instruction in a Science High School Amidst the Covid-19 Pandemic

The disruptions caused by the Covid-19 Pandemic do not excuse science schools from continuing to provide holistic quality education to their learners. This study determined teachers\u27 practices in the Curriculum and instruction as part of School-Based Management Level-3 of a public science high school. The descriptive-correlation quantitative research design and data triangulation were employed. The teachers were on average age of 32.90 years, 75% of the respondents were female, the average years in service of the teachers is eight years, and the majority are Teachers I-III, about 93.8% of the respondents. About 18.8% of the respondents were full-fledged in their Master\u27s Program. Results of the study showed that teachers\u27 overall level of practice in Curriculum and instruction was denoted as highly practiced. Correlational analyses revealed a significant relationship between the highest educational attainment and general practices of teachers in Curriculum and instructions (r=0.478,p=0.002<0.05). A significant relationship between the provision for the development needs of learners and the Review, improvement, and contextualization of assessment tools for teaching and learning as teachers\u27 practices in the Curriculum and Instruction was also presented (r=0.449,p=0.010<0.05). A significant relationship between the regular collaboration of the learning system and the Review, improvement, and contextualization of assessment tools for teaching and learning (r=0.430,p=0.014< 0.05) was also significant

Natural Sunlight Shapes Crude Oil-Degrading Bacterial Communities in Northern Gulf of Mexico Surface Waters

Following the Deepwater Horizon (DWH) spill in 2010, an enormous amount of oil was observed in the deep and surface waters of the northern Gulf of Mexico. Surface waters are characterized by intense sunlight and high temperature during summer. While the oil-degrading bacterial communities in the deep-sea plume have been widely investigated, the effect of natural sunlight on those in oil polluted surface waters remains unexplored to date. In this study, we incubated surface water from the DWH site with amendments of crude oil, Corexit dispersant, or both for 36 d under natural sunlight in the northern Gulf of Mexico. The bacterial community was analyzed over time for total abundance, density of alkane and polycyclic aromatic hydrocarbon degraders, and community composition via pyrosequencing. Our results showed that, for treatments with oil and/or Corexit, sunlight significantly reduced bacterial diversity and evenness and was a key driver of shifts in bacterial community structure. In samples containing oil or dispersant, sunlight greatly reduced abundance of the Cyanobacterium Synechococcus but increased the relative abundances of Alteromonas, Marinobacter, Labrenzia, Sandarakinotalea, Bartonella, and Halomonas. Dark samples with oil were represented by members of Thalassobius, Winogradskyella, Alcanivorax, Formosa, Pseudomonas, Eubacterium, Erythrobacter, Natronocella, and Coxiella. Both oil and Corexit inhibited the Candidatus Pelagibacter with or without sunlight exposure. For the first time, we demonstrated the effects of light in structuring microbial communities in water with oil and/or Corexit. Overall, our findings improve understanding of oil pollution in surface water, and provide unequivocal evidence that sunlight is a key factor in determining bacterial community composition and dynamics in oil polluted marine waters

Sound Energy: An Electric Source of Noise Pollution Based Power Bank

The sound energy associated with the vibration of matter an abundant source of noise pollution, wherein the least of all types of pollution which most people ignore to recycle and turn into electricity sources. The purpose of this project is to design and develop a device that can make useful energy from noise known as noisepollution based power bank with suitable architectural design, component design, code generation, and integration system..The researcher chooses design science research methods and V Model procedure to make sure of the efficiency of the device. Noise Pollution Based Power Bank was tested in different noisy areas. Thedevice had been tested in various places to prove capability to work in a variety of noisy environment. The efficiency of the device in terms of charging the power bank utilizing noise is proven effective especially in loud/ noisy places that make the power bank charged the battery continuously. Comparing to commercial power banks, noise pollution based power bank produced a parallel result. Charging is also performed with different gadgets that are most likely use power bank and found effective and efficient. With the future modification of the noise pollution based power bank, it is possible to make this device a basis of imminent technologies that will make a way of recycling noise pollution to be a secondary source of establishing a wide scale electricity source. Keywords: Noise Pollution, Acoustic Energy, Sound Energy, Power Bank, Alternative Energy Source, Electric Sourc

Response of sediment bacterial community to triclosan in subtropical freshwater benthic microcosms

The response of sediment bacterial communities in subtropical freshwater benthic microcosms to sediment-associated triclosan (TCS; 28 d exposure) was analysed using Illumina high-throughput sequencing. This study highlights the interactive effects of TCS and the presence of benthic macroinvertebrates (Limnodrilus hoffmeisteri and Viviparidae bellamya) on sediment bacterial communities. Our results show that TCS alone significantly altered the taxonomic composition and decreased alpha diversity of sediment bacterial communities at concentrations ≥80 μg TCS/g dry weight (dw) sediment (sed). Regarding dominant phyla, TCS significantly reduced the relative abundance of Bacteroidetes and Firmicutes at these concentrations, whereas the relative abundance of Chloroflexi and Cyanobacteria increased. In the presence of benthic macroinvertebrates, the sediment bacterial community was affected by 8 μg TCS/g dw sed as well. However, the presence of benthic macroinvertebrates did not cause measurable changes to bacterial community in unspiked (i.e., control) sediment. These results indicate that TCS alone would not alter the sediment bacterial community at environmentally relevant concentrations (up till 8 μg/g dw sed), but may have an effect in combination with the presence of benthic macroinvertebrates. Therefore, we recommend to include benthic macroinvertebrates when assessing the response of sediment bacterial communities during exposure to environmental stress such as organic contaminants.</p

Portrait of Angela Riley

Studio portrait of Visiting Law professor Angela Riley. Riley taught Race and Law and coordinated programs on race-related issues for the Center for Social Justice and Public Interest

Portrait of Jacqueline Hand

Portrait of Visiting Law professor Jacqueline Hand

Portrait of Carlos Gonzalez

Studio Portrait of Visiting Law professor Carlos Gonzalez

PREFERENTIAL DEGRADATION OF AROMATIC HYDROCARBONS OVER ALIPHATIC HYDROCARBONS IN MINERAL OIL BY A MICROBIAL CONSORTIUM

Tohoku University井上千