Publications by authors named "Julie Torruellas-Garcia"

Article Synopsis
  • Over two decades, initiatives have aimed to enhance STEM undergraduate outcomes, with the inclusive Research Education Community (iREC) emerging as a scalable reform model that supports STEM faculty in implementing course-based research to improve student learning.
  • This study utilized pathway modeling to describe the HHMI Science Education Alliance (SEA) iREC, identifying how faculty engagement leads to sustainable adoption and improvement of new teaching strategies through feedback from over 100 participating faculty members.
  • The findings indicate that iREC fosters a collaborative environment where STEM faculty can share expertise and data, thereby enhancing their teaching practices and contributing to the overall evolution of undergraduate science education.
View Article and Find Full Text PDF

Course-based research pedagogy involves positioning students as contributors to authentic research projects as part of an engaging educational experience that promotes their learning and persistence in science. To develop a model for assessing and grading students engaged in this type of learning experience, the assessment aims and practices of a community of experienced course-based research instructors were collected and analyzed. This approach defines four aims of course-based research assessment - 1) Assessing Laboratory Work and Scientific Thinking; 2) Evaluating Mastery of Concepts, Quantitative Thinking and Skills; 3) Appraising Forms of Scientific Communication; and 4) Metacognition of Learning - along with a set of practices for each aim.

View Article and Find Full Text PDF

We report on two actinobacteriophages, Genamy16 and NovaSharks, that were isolated from soil in Florida using Gordonia rubripertincta NRRL B-16540. The genomes of both phages are ~65,000 bp, with similar GC contents, and, based on gene content similarity to phages in the Actinobacteriophage Database, were assigned to phage cluster DV.

View Article and Find Full Text PDF

Evidence-based studies on the benefits of integrating STEM into the arts are limited; however, some suggest that it can lead to improved scientific literacy and new approaches for artistic scholarship. Unfortunately, undergraduate education often creates disciplinary silos where the two are not integrated. Here, we discuss a unique collaboration between professors in the art and biology departments.

View Article and Find Full Text PDF

Current methods for screening small molecules that inhibit the plasmid pCD1-encoded Yersinia pestis type III secretion system (T3SS) include lengthy growth curves followed by multistep luminescence assays or Western blot assays to detect secretion, or lack thereof, of effector proteins. The goal of this research was to develop a novel disk diffusion assay on magnesium oxalate (MOX) agar as a simple way to evaluate the susceptibility of Y. pestis to type III secretion system inhibitors.

View Article and Find Full Text PDF

Communicating science effectively to the general public is a necessary skill that takes practice. Generally, undergraduate science majors are taught to communicate to other scientists but are not given formal training on how to communicate with a nonscientist. An opportunity to appear on a news segment can be used as a real-world lesson on science communication for your students.

View Article and Find Full Text PDF
Article Synopsis
  • The type III secretion (T3S) systems in Yersinia pestis rely on the polymerization of the needle protein YscF, with chaperones YscE and YscG preventing premature polymerization inside the bacterial cell.
  • Research shows that both YscE and YscG are essential for stabilizing YscF in the cytoplasm and facilitating its secretion; without YscE, YscF cannot be secreted despite stabilization by other proteins.
  • Although previous studies suggested that YscF could be functional without its N-terminal region, the findings confirm that this region actually contains an essential secretion signal for YscF's successful secretion.
View Article and Find Full Text PDF

Yersinia pestis evades immune responses in part by injecting into host immune cells several effector proteins called Yersinia outer proteins (Yops) that impair cellular function. This has been best characterized in the innate effector cells, but much less so for cells involved in adaptive immune responses. Dendritic cells (DC) sit at the crossroads between innate and adaptive immunity, and can function to initiate or inhibit adaptive immune responses.

View Article and Find Full Text PDF

Numerous bacterial pathogens use type III secretion systems (T3SSs) or T4SSs to inject or translocate virulence proteins into eukaryotic cells. Several different reporter systems have been developed to measure the translocation of these proteins. In this study, a peptide tag-based reporter system was developed and used to monitor the injection of T3S and T4S substrates.

View Article and Find Full Text PDF