27839 research outputs found
Sort by
“Glory days well they’ll pass you by,”: Major League Baseball’s 1994-1995 Strike: A Legacy of Damage and Failed Recovery
The Applicability of Federal Employment Discrimination Statutes to Incarcerated Workers: Requiring an Application of the Baker Economic Reality Test and the Satisfaction of Two Conditions for Employee Status
Pleas and Prejudice: Examining Ineffective Assistance of Counsel in Plea Bargaining After the Supreme Court’s Denial of Certiorari in Davis v. United States
Faculty and Administrator Perceptions of the Implementation of the International Baccalaureate Diploma Program in Relation to Roger’s Theory of Diffusion of Innovation
This study examined the perceptions of both teachers and school administrators of the implementation of the International Baccalaureate Diploma Program in High Schools in the northeastern United States. Using a qualitative design, data was collected through an anonymous survey of teachers who presently teach International Baccalaureate Diploma Program courses. Additional data was collected through conducting semi-structured interviews of acting principals of schools that offer the International Baccalaureate Diploma Programme. Results of this data collection was reviewed through the lens of Roger’s Theory of Diffusion of Innovation. Qualitative results indicated that both teachers and administrators alike viewed teacher leadership and teacher experience as important indicators of the successful implementation of an International Baccalaureate Diploma Programme. Themes outlined by both the survey and interviews demonstrated the importance of individual teachers’ contributions and experiences while implementing the program. The International Baccalaureate Diploma Program requires implementing a student-centered and inquiry-based instructional delivery program in the classroom. This method of instruction is delivered with fidelity based on how teachers perceive the usefulness of this teaching style, as well as how well the program is regarded by peers
Impact of Environmental Factors on Microbial Community Dynamics in Lake Parsippany
Seasonal fluctuations in temperature, pH, and rainfall can significantly influence microbial abundance, diversity, and eutrophication in freshwater ecosystems. This study examined how environmental changes shape microbial community composition in Lake Parsippany, New Jersey, during the summer of 2024. Water samples were collected biweekly from three georeferenced sites (Site 1: 40.84979°N, 74.42985°W; Site 2: 40.85313°N, 74.43729°W; Site 3: 40.84893°N, 74.43502°W) between late May and August. Physical parameters, including temperature, pH, and precipitation, were recorded at each sampling event. Microbial analysis was performed using both culture-based methods with Chelex DNA extraction and filtration-based extraction with the Qiagen DNeasy PowerWater Kit. DNA quality was confirmed via NanoDrop prior to 16S rRNA gene amplicon sequencing.
Sequencing of the V3–V4 regions revealed distinct temporal and spatial shifts in microbial composition. In May, Proteobacteria and Planctomycetota were moderately abundant. By June, Sphingomonadales increased markedly at Sites 1 and 2 (17% and 44%, respectively), while Cyanobacteria peaked at 46.6% at Site 3—collected during a rain event. July samples showed elevated levels of Escherichia-Shigella at Sites 2 and 3 (20.5% and 24.1%), and Lactobacillus dominated Site 1 (14.1%). By August, Cyanobacteria became the dominant group across all sites (up to 17%), suggesting eutrophic conditions. Bray-Curtis dissimilarity analysis confirmed strong spatial and temporal variation in microbial communities, influenced by nutrient input, rainfall, and temperature.
These results highlight the sensitivity of freshwater microbial communities to abiotic factors and suggest that environmental fluctuations are key drivers of microbial dynamics. This study enhances our understanding of seasonal microbial ecology and underscores the need for microbial monitoring in urban freshwater management