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Bacteria form an intense portion of reading and learning for students enrolled in microbiology education. As a part of the foundational course outline of bacteriology, bacterial classification is a significant topic of discussion. The purpose of our study was to analyze whether bacterial classification can be taught with a phylogenetic tree approach that might be more engaging and beneficial to student learners of microbiology. This methodology is unique compared to the conventional approach applied in introductory lectures of bacteriology that relies on morphology and Gram-staining to classify bacteria. The participants of this study were students enrolled in a two-semester medical school bridge program that offers a Master's degree in Pre-clinical Sciences. We presented bacterial origin and classification in the light of evolution and used a phylogenetic tree to signify clinically relevant groups of bacteria. Students were also taught the traditional bacterial classification using Gram stains and morphology. Both methods of classification were delivered in a didactic classroom session considering equal time spent and utilizing the same format. An online survey was distributed to the students after the session to collect their feedback. The results from the survey showed that 74% of participants would prefer learning bacterial classification using a combined approach that includes both Gram-staining and morphology as well as the phylogenetic tree. When asked if the study of bacterial classification through an evolutionary tree diagram is a clear and concise way of understanding bacteria, 79% of the students either agreed or strongly agreed with this statement. Interestingly, the alternative phylogenetic tree approach was considered more engaging and regarded as a means to expand the clinical knowledge of bacteria by 78% and 71% of the students, respectively. Overall, our study strongly supports the use of tree-based classification as an additional method to improve the learning of medically important groups of bacteria at varying levels of education.

Fungi mostly reproduce through spores that are adapted for airborne dispersal; hence, fungal spores (and fungi) are found virtually everywhere. Fungi can be "friends or foes." Our friends include fungi used in the food and biotech industries, fungi that contribute to the cycling of carbon and nutrients, and those involved in the decontamination of polluted soils and/or water, to mention just a few examples. Many species, however, are foes--they are detrimental to plants, animals, and/or humans. Annually, >1.5 million people die due to invasive fungal infections. With the aim of enhancing microbiology literacy and the understanding of microbial concepts, we set up a project for the collection of airborne spores (the principal agent through which human airways are exposed to fungi). Students from five high schools in the Oeiras municipality partnered with us as citizen scientists; they carried out sampling by collecting fungal spores on adhesive stickers. The fungal spores collected by the students were subsequently processed in the schools and our research laboratory. Results obtained by the students themselves revealed a large variety of fungal species capable of growing in a rich medium at 30°C. In the research laboratory, using selective isolation conditions, 40 thermotolerant fungi were isolated, 32 of which were taxonomically identified as aspergilla, mostly from within the Aspergillus fumigatus taxa, yet exhibiting high genetic heterogeneity. The protocols and results were presented to the students, who were made aware of the local dispersal of airborne fungal spores, including some from potentially pathogenic fungi. Through carrying out scientific activities, the students developed both the interest and the self-confidence needed to implement future environmental investigations.

Quantitative microbial risk assessment (QMRA) is a growing interdisciplinary field addressing exposures to microbial pathogens and infectious disease processes. Risk science is inherently interdisciplinary, but few of the contributing disciplinary programs offer courses and training specifically in QMRA. To develop multidisciplinary training in QMRA, an annual 10-day long intensive workshop was conducted from 2015 to 2019--the Quantitative Microbial Risk Assessment Interdisciplinary Instructional Institute (QMRA III). National leaders in the fields of public health, engineering, microbiology, epidemiology, communications, public policy, and QMRA served as instructors and mentors over the course of the program. To provide cross-training, multidisciplinary teams of 5-6 trainees were created from the approximately 30 trainees each year. A formal assessment of the program was performed based on observations and surveys containing Likert-type scales and open-ended prompts. In addition, a longitudinal alumni survey was also disseminated to facilitate the future redevelopment of QMRA institutes and determine the impact of the program. Across all years, trainees experienced statistically significant increases (P < 0.05) in their perceptions of their QMRA abilities (e.g., use of specific computer programs) and knowledge of QMRA constructs (e.g., risk management). In addition, 12 publications, three conference presentations, and two research grants were derived from the QMRA III institute projects or tangential research. The success of QMRA III indicates that a short course format can effectively address many multidisciplinary training needs. Key features of QMRA III, including the inter-disciplinary training approach, hands-on exercises, real-world institute projects, and interaction through a mentoring process, were vital for training multidisciplinary teams housing multiple forms of expertise. Future QMRA institutes are being redeveloped to leverage hybrid learning formats that can further the multidisciplinary training and mentoring objectives.

Recently, several articles have reflected on the existence of microorganisms in supporting the life and health of living creatures as the beginning of the emergence of microbiology literacy. In the curriculum, understanding the activity of microorganisms has been studied from pre-school, elementary school, and middle school to college. The presence of microorganisms is often associated as a cause of disease. As a result, most students know the negative impact of microorganisms but have not discovered the fundamental role of microorganisms in their lives. Special attention needs to be given as a form of effort to strengthen microbiology literacy. Several studies state that students have an important role in disseminating the concept of sterilization, maintaining a safe distance, and using masks as generally applicable protocols during the pandemic. Therefore, with the aim that microorganisms have an important role, both directly and indirectly and to curb negative perceptions of microorganisms, we propose microbiology competencies among biology education students, who are future teaching candidates. This article identifies the complex challenges of 21st-century microbiology learning and the OECD framework. This approach includes the use of pedagogical interventions with the main objectives: (i) knowledge (to teach fundamental microbiology knowledge, (ii) skills (to increase awareness in recognizing and solving real-life problems), and (iii) attitudes and values (to explain the contribution of microbiology in supporting life).

Winogradsky columns were invented by Sergei Winogradsky in the 1880s and have commonly been used as a microbiology classroom learning tool in K-12 and collegiate education. However, they can be challenging to examine with microscopy. We scaled down Winogradsky columns into nuclear magnetic resonance (NMR) tubes and replaced the natural sediment with a transparent soil substitute toward the goal of observing the microbial growth under a bright-field microscope without column disassembly. Using this "Mini Winnie" approach, students can practice their microscopy skills while observing microbial growth inside the column after only days of incubation on the laboratory windowsill. Overall, we believe that the Mini Winnies provide a simple method for maximizing student engagement while giving them a greater understanding of how microorganisms interact in the environment.

Inspired by the positive impact of serious games on science understanding and motivated by personal interests in scientific outreach, we developed "Bacttle," an easy-to-play microbiology board game with adaptive difficulty, targeting any player from 7 years old onward. Bacttle addresses both the lay public and teachers for use in classrooms as a way of introducing microbiology concepts. The layout of the game and its mechanism are the result of multiple rounds of trial, feedback, and re-design. The final version consists of a deck of cards, a 3D-printed board, and tokens (with a paper-based alternative), with all digital content open source. Players in Bacttle take on the character of a bacterial species. The aim for each species is to proliferate under the environmental conditions of the board and the interactions with the board and with other players, which vary as the play evolves. Players start with a given number of lives that will increase or decrease based on the traits they play for different environmental scenarios. Such bacterial traits come in the form of cards that can be deployed strategically. To assess the impact of the game on microbiological knowledge, we scored differences in the understanding of general concepts before and after playing the game. We assessed a total of 169 visitors at two different university open-day science fairs. Players were asked to fill out a brief survey before and after the game with questions targeting conceptual advances. Results show that Bacttle increases general microbiology knowledge on players as young as 5 years old and with the highest impact on those who have no "a priori" microbiology comprehension.

Have you ever deeply considered the intersections between research and education, particularly for second-level students? Traditionally, the convergence of these two realms is most often noted when considering the integration of research findings into educational practices or the involvement of, typically a small number, of students in research activities. While these practices have demonstrated efficacy, the fields of scientific research and education are evolving rapidly, necessitating a reevaluation of how we can optimize their convergence. In our discourse, we delve into these evolving trends, uncover the potential for greater integration, and, ultimately, enhance outcomes using the citizen science initiative Kefir4All as an illustrative example.

The current and ongoing challenges brought on by climate change will require future scientists who have hands-on experience using advanced molecular techniques, can work with large data sets, and can make correlations between metadata and microbial diversity. A course-embedded research project can prepare students to answer complex research questions that might help plants adapt to climate change. The project described herein uses plants as a host to study the impact of climate change-induced drought on host-microbe interactions through next-generation DNA sequencing and analysis using a command-line program. Specifically, the project studies the impact of simulated drought on the rhizosphere microbiome of Fast Plants rapid cycling "Brassica rapa" using inexpensive greenhouse supplies and 16S rRNA V3/V4 Illumina sequencing. Data analysis is performed with the freely accessible Python-based microbiome bioinformatics platform QIIME 2.

This paper presents two low-cost hands-on activities designed to enhance student understanding and address the pedagogical challenges faced by microbiology professors in teaching concepts related to cell structure and gene regulation. In the first activity, we used Shrinky Dinks and Jeopardy-style game questions to explore the differences between prokaryotic and eukaryotic cells. Students have to collect pieces and physically build their cell models. The second activity uses origami organelles sets from Edvotek to illustrate the regulation of gene expression in the "lac" and "trp" operons, incorporating mutation scenarios for analysis. The intended audience comprises undergraduate students in microbiology, including biology, pre-medical studies, and health profession majors. The activities were deployed in three microbiology lectures, and students were surveyed. Students' feedback highlights the efficacy of the hands-on approach and increased class participation, as two of the recurring words in the students' survey were "helpful" and "fun."

The ubiquity and ease with which microbial cells disperse over space is a key concept in microbiology, especially in microbial ecology. The phenomenon prompted Baas Becking's famous "everything is everywhere" statement that now acts as the null hypothesis in studies that test the dispersal limitation of microbial taxa. Despite covering the content in lectures, exam performance indicated that the concepts of dispersal and biogeography challenged undergraduate students in an upper-level Microbial Ecology course. Therefore, we iteratively designed a hands-on classroom activity to supplement the lecture content and reinforce fundamental microbial dispersal and biogeography concepts while also building quantitative reasoning and teamwork skills. In a class period soon after the lecture, the students formed three-to-five-person teams to engage in the activity, which included a hands-on dispersal simulation and worksheet to guide discussion. The simulation involved stepwise neutral immigration or emigration and then environmental selection on a random community of microbial taxa represented by craft poms. The students recorded the results at each step as microbial community data. A field guide was provided to identify the taxonomy based on the pom phenotype and a reference to each taxon's preferred environmental niches. The worksheet guided a reflection of student observations during the simulation. It also sharpened quantitative thinking by prompting the students to summarize and visualize their and other teams' microbial community data and then to compare the observed community distributions to the idealized expectation given only selection without dispersal. We found that the activity improved student performance on exam questions and general student satisfaction and comfort with the biogeography concepts. Activity instructions and a list of needed materials are included for instructors to reproduce for their classrooms.

Nicotine is a major alkaloid in tobacco plants and an addictive component of tobacco products. Some bacteria grow on tobacco plants and have evolved the ability to metabolize nicotine. As part of our microbiology teaching lab, we used minimal media with nicotine as the sole carbon source to isolate nicotine-degrading bacteria from tobacco leaves and commercial tobacco products. Students then identified these bacteria using 16S rRNA sequencing and biochemical assays and assessed their ability to catabolize nicotine using UV spectroscopy. Students were able to isolate and identify 14 distinct genera that can metabolize nicotine. This modification of the commonly used unknown project gave students firsthand experience using selective media, and students got the opportunity to work with largely uncharacterized microbes with a real-world connection to public health, which increased student engagement. Students had the opportunity to think critically about why nicotine-degrading microorganisms associate with tobacco plants, why there are different bacteria that use the same specialized metabolism, and how these organisms are isolated from other bacteria using selective media.

Microorganisms are ubiquitous in nature and are central to human, animal, environmental, and planetary health. They play a particularly important role in the food chain and the production of high-quality, safe, and health-promoting foods, especially fermented foods. This important role is not always apparent to members of the public. Here, we describe Kefir4All, a citizen science project designed to provide the general public with an opportunity to expand their awareness, knowledge, and practical skills relating to microbiology, introduced through the medium of producing fermented food, i.e., milk kefir or water kefir. During the course of Kefir4All, 123 citizen scientists, from second-level school and non-school settings, participated in a study to track changes in the microbial composition of kefirs, by performing and recording details of milk kefir or water kefir fermentations they performed in their homes or schools over the21-week project. At the start of the study, the citizen scientists were provided with milk or water kefir grains to initiate the fermentations. Both types of kefir grain are semi-solid, gelatinous-like substances, composed of exopolysaccharides and proteins, containing a symbiotic community of bacteria and yeast. The experimental component of the project was complemented by a number of education and outreach events, including career talks and a site visit to our research center (Kefir Day). At the end of the study, a report was provided to each citizen scientist, in which individualized results of their fermenting activities were detailed. A number of approaches were taken to obtain feedback and other insights from the citizen scientists. Evaluations took place before and after theKefir4All project to gauge the citizen scientist's self-reported awareness, knowledge, and interest in microbiology and fermented foods. Further insights into the level of citizen science participation were gained through assessing the number of samples returned for analysis and the level of participation of the citizen scientists throughout the project. Notably, the survey results revealed a self-reported, increased interest in, and general knowledge of, science among the Kefir4All citizen scientists after undertaking the project and a willingness to take part in further citizen science projects. Ultimately, Kefir4Allrepresents an example of the successful integration of citizen science into existing education and research systems.

The importance of teaching the Luria-Delbrück experiment to biology students is increasingly recognized by educators, and improved pedagogical methods for teaching the classic experiment have been proposed and tested in the classroom. However, there are still obstacles that impede the proper teaching of the classic experiment. This note proposes two strategies to further improve the teaching of the classic experiment. The first strategy is to be frank with an inherent limitation of the classic experiment, and instructors should explain from a logical point of view why the classic experiment cannot be used to refute the possibility of directed mutation. The second strategy is to emphasize the pioneering work of Delbrück on developing the mutant distribution that enables researchers to estimate microbial mutation rates using data generated by fluctuation experiments, and instructors should shift their attention to the overlooked essential role of the mutant distribution.

Course-based undergraduate research experiences (CUREs) provide opportunities for undergraduate students to engage in authentic research and generally increase the participation rate of students in research. Students' participation in research has a positive impact on their science identity and self-efficacy, both of which can predict integration of students in Science, Technology, Engineering, and Math (STEM), especially for underrepresented students. The main goal of this study was to investigate instructor-initiated CUREs implemented as upper-level elective courses in the Biomedical Sciences major. We hypothesized that these CUREs would (i) have a positive impact on students' scientific identity and self-efficacy and (ii) result in gains in students' self-assessed skills in laboratory science, research, and science communication. We used Likert-type surveys developed by Estrada et al. (14) under the Tripartite Integration Model of Social Influence to measure scientific identity, self-efficacy, and scientific value orientation. When data from all CUREs were combined, our results indicate that students' self-efficacy and science identity significantly increased after completion. Students' self-assessment of research and lab-related skills was significantly higher after completion of the CUREs. We also observed that prior to participation in the CUREs, students' self-assessment of molecular and bioinformatic skills was low, when compared with microbiological skills. This may indicate strengths and gaps in our curriculum that could be explored further.

The coronavirus disease 2019 (COVID-19) pandemic has underscored the importance of mRNA vaccines. The mechanism for how such vaccines work is related to the core biology topic of the central dogma, which students often misunderstand despite its importance. Therefore, we wanted to know whether students can apply their biology knowledge of central dogma to the real-world issue of how mRNA COVID vaccines work. Accordingly, we asked college biology students of different expertise levels how the COVID vaccine worked. Later, we cued them by telling them the vaccine contains mRNA and asked them what the mRNA does. We used thematic analysis to find common ideas in their responses. In the uncued condition, fewer than half of the students used central dogma-related ideas to explain what was in the vaccine or how the vaccine worked. Inaccurate ideas were present among all groups of biology students, particularly entering biology majors and non-biology majors, including the idea that the COVID vaccines contain a weakened, dead, or variant form of the COVID virus. After students were cued, many more students in all expertise groups expressed central dogma-related themes, showing that students could apply the knowledge of central dogma if prompted. Advanced biology majors were much more likely to state that the vaccines code for a viral protein, indicating their advanced application of central dogma concepts. These results highlight inaccurate ideas common among students and show changes in the ability to apply knowledge with student expertise level, which could inform future interventions to support student learning about vaccines and central dogma.

Today's global challenges are characterised by rapid change. Adjusting to these changes, requires professionals to learn at pace, then rapidly adapt how they work. To support this need, professional development programmes have been designed as Massive Open Online Courses aimed at universal reach, large numbers, and knowledge transfer. However, focus on the scale and reach of knowledge transfer is not sufficient. Professional development programmes must extend beyond learning at scale by supporting professionals not only to learn new knowledge, but also to apply this knowledge to their work. Achieving this goal means taking into account the local context by combining knowledge learned on the programme with local knowledge, by reflecting on the role, and by planning how to adapt work practice and processes. This new focus is particularly relevant to areas of healthcare that are changing at pace. The global health challenge of antimicrobial resistance (AMR) threatens our ability to treat infections and achieve the UN's Sustainable Development Goals. Mitigating the impacts of AMR requires professionals across a wide range of roles to change how they work and there is widespread recognition of the need to provide learning opportunities for professionals to build capacity to tackle this challenge. Provoked by a funder's interest in 'developing a MOOC' to support capacity building for AMR surveillance, this paper investigates how we reconceptualise MOOCs as professional learning in rapidly changing contexts and how we combine 'learning at scale' with the need for professionals to adapt and apply knowledge. The paper presents the theoretical framework and methodological approach and offers reflections on key decisions concerning the design of 'Tackling Antimicrobial Resistance', a professional development MOOC designed as a collection of online modules aiming to support professionals to reflect on how the knowledge learned applies to their everyday practice. Although this study is contextualised within the global health challenge of AMR, these findings are likely to have applicability for the design of professional learning to support other global challenges.

In biology learning, the object of a virus cannot be seen directly. Augmented reality (AR) technology can help visualize the object of a virus in 3D, making it easier for students to learn about viruses. Therefore, this research aims to develop an AR-based learning media product called ARVi. ARVi was created using the ADDIE model, which consists of five stages: analysis, design, development, implementation, and evaluation. The results of the analysis revealed that students need learning media with engaging visualizations. Therefore, ARVi was designed as a mobile application with various colors, images, videos, AR, and quizzes. ARVi underwent validation tests by experts, including biology education lecturers and biology teachers. The user responses were evaluated through a small group test involving 20 students, where questionnaires were distributed. Based on the questionnaire results, the average score for the media expert was 3.84, and for the material expert was 3.80. These scores indicate that ARVi is very valid for use as a learning medium. The results of the small group test were 2.85, indicating that ARVi is valid for use after minor revisions are made. The implementation results for 60 students, as determined through a paired t-test, showed a significant difference between the pretest and posttest results, with the posttest score being higher than the pretest score. The research results concluded that ARVi is suitable as a biology learning media.

The concepts of bacteriology are still poorly understood by students of the Department of Biology Education, Mulawarman University. Certain ethnic characteristics influence student learning processes and outcomes. A quasi-experiment was carried out at the Department of Biology Education, Mulawarman University in the even semester of the 2022/2023 academic year. The aim of the research was to map members of ethnic-based practicum groups in bacteriology practicum in an effort to empower understanding of bacteriology concepts. Ethnic-based practicum means that the practicum is carried out taking into account the ethnic diversity that exists in each group in the class. The research sample was class A and class B students who were taking a bacteriology practicum program. The research instruments were questionnaires and test questions. Data analysis techniques are percentage and covariance analysis. If there is a significant influence, then proceed with Least Significance analysis Difference. The results of data analysis show that there is a significant influence between the application of the product (a Project-Based Learning-based practicum guide) on understanding the concept of bacteriology as a result of development (p?0.00). The research sample was class A and class B students who were taking a bacteriology practicum program. For further research, practical material needs to be supplemented with other bacteriological materials, and involve more ethnic types.

The application of effective teaching methods needs to be implemented to improve the quality of microbiology education which can empower important competencies in the current era. This study aims to analyze the application and trajectory of argumentation-based inquiry learning through the application of microbiology lectures. This research uses research design methods consisting of preliminary design steps, teaching experiments and retrospective analysis. The source of the data comes from student learning activities in argumentation-based inquiry learning implemented in microbiology courses. The results showed that the learning trajectory of Hypothetical Learning Trajectory (HLT) in microbiology lectures with an argumentation-based inquiry model was in accordance with the stages of student research ranging from determining research themes, compiling proposals, designing and implementing data collection, analyzing data, discussing research results, writing research reports to conducting scientific publications in journals. Students who carry out microbiology lectures using argumentation-based inquiry learning through the implementation of different research in the field of microbiology experience a similar learning trajectory so that a specific and distinctive set of Hypothetical Learning Trajectory (HLT) can be formulated.

This study aims to: Produce teaching materials in the form of microbiology e-books based on research results on the isolation of styrofoam degrading soil bacteria. Testing the effect of using e-books on improving students' science process skills. The e-book preparation method refers to the Lee and Owens development model and is implemented in learning with the PBL model in the experimental and control groups. The results showed that: e-book material feasibility, e-book teaching materials and e-book practicality with very valid criteria. E-books are proven effective in improving students' science process skills with high criteria, so e-books are suitable for use as teaching materials to support learning. Can be used to solve problems that may be encountered in everyday life.

Health literacy should be developed from early ages, but students, including preservice teachers, hold misconceptions about micro-organisms. The objective of this study was to analyse the knowledge that a sample of 102 Early Childhood Preservice Teachers (PST) had about micro-organisms and about cystitis. The PSTs performed a series of activities that included an inquiry-based laboratory activity. Their knowledge about micro-organisms was assessed by pre- and post-questionnaires, and about cystitis, by analysing the responses to an open-ended pretest, the inquiry reports and the performance of the PSTs when changing nappies on dolls. Results show a better understanding about the micro-organisms at the end of the study. In the case of cystitis, in the pretest PSTs did not identify bacteria as agents, but they did after the inquiry activity, and they also mentioned the proliferation of bacteria. Nevertheless, only 32% of PSTs changed nappies coherently with the knowledge.

Bringing Research into the Classroom (BRIC) engaged rural K-12 science teachers in sustained, mentored science research. BRIC's goal was to equip teachers with the knowledge, skills, and dispositions to provide high-quality biomedical research opportunities for K-12 students and teachers. Programmatic elements included authentic, place-based, microbiology outreach in K-12 classrooms, summer teacher research academies focused on content knowledge and research, and a capstone symposium. Over 9,000 Montana students collected and tested environmental samples to isolate new-to-science bacteriophages (viruses that infect bacteria). University scientists, faculty, and students mentored K-12 teachers and students during classroom outreach visits and teacher research academies. BRIC aimed to increase teacher and student bacteriophage content knowledge and research skills through meaningful, mentored research projects. BRIC researchers hypothesized greater program impacts from intensive teacher professional development combined with classroom outreach, compared to classroom outreach visits alone. Program evaluation compared two cohorts of teachers, which each received all programmatic elements through a four-year, staggered rollout. Teachers and students were assessed for gains in knowledge, skills, and science attitudes. A subset of our evaluation instruments and outcomes, program dissemination, lessons learned, and recommendations for replicating the BRIC model are discussed.

Objective: This study examined children's representations of the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) as well as their pandemic experiences against the backdrop of the world having transitioned to normalcy. Design: Mixed-methods approach encompassing both qualitative and quantitative analysis. Setting: Two middle schools in Hefei city in mid-eastern China. Method: Data were collected using a qualitative task which elicited children's drawings, commentaries, answers to questions related to their pandemic experiences, followed by small-group interviews. Content analysis and emergent coding techniques were employed to analyse the data, the extracted themes of which were then quantified to reveal their incidence and distribution. Results: Analysis of the multimodal data set revealed children not only depicted viral morphology but also evoked emotions. The pandemic had brought about changes in children's lives, marked by a shift towards more academic activities, rest and relaxation and screen time. These changes also raised psychological, physical and social development concerns warranting mitigation. Multifaceted sources were identified as contributing to children's unhappiness, including restricted social interactions, educational challenges, emotional and psychological issues. Notably, children reported enhanced pre- to post-pandemic hygiene and sanitisation practices. Unsubstantiated beliefs relating to processes of recovery suggest the need for clearer communication in this regard. Conclusion: The study highlights the necessity for health education to support children in physical and psychological coping during a pandemic and build their resilience against future epidemics. Actively listening to children's account of the SARS-CoV-2 coronavirus, and their pandemic experiences paves the way for making health education initiatives more relatable and attuned to their needs.

Experts perceive and evaluate domain-specific visual information with high accuracy. In doing so, they exhibit eye movements referred to as "expert gaze" to rapidly focus on task-relevant areas. Using eye tracking, it is possible to record these implicit gaze patterns and present them to histology novice learners during training. This article presents a comprehensive evaluation of such "expert gaze cueing" on pattern recognition of medical students in histology. For this purpose, 53 students were randomized into two groups over eight histology sessions. The control group was presented with an instructional histology video featuring voice commentary. The gaze cueing group was presented the same video, but with an additional overlay of a live recording of the expert's eye movements. Afterward, students' pattern recognition was assessed through 20 image-based tasks (5 retention, 15 transfer) and their cognitive load with the Paas scale. Results showed that gaze cueing significantly outperformed the control group (p = 0.007; d = 0.40). This effect was evident for both, retention (p = 0.003) and transfer tasks (p = 0.046), and generalized across different histological contexts. The cognitive load was similar in both groups. In conclusion, gaze cueing helps histology novice learners to develop their pattern recognition skills, offering a promising method for histology education. Histology educators could benefit from this instructional strategy to provide new forms of attentional guidance to learners in visually complex learning environments.

This paper presents a novel approach to teaching how vaccines work in the body, and introduces a community outreach project and activity we piloted with youth. Our Nuestra Ciencia program addresses scientific misconceptions among bilingual elementary school children in engaging and scientifically accurate ways. Utilizing analogies and storytelling, one of our lessons simplifies the complex microbiology concept of the mechanism of action of vaccines. We underscore the issue with conveying this concept through accurate visuals, supported by our research that revealed that less than 1% of cartoons available online accurately depict how vaccines work. The analogy we developed and showcase in this paper employs relatable characters: the virus as a robber, the immune system as a superhero, and the vaccine as a "most wanted" poster. The activities include a skit and storyboard session, enabling students to act out the analogy and create their own imaginative scenarios. By targeting young learners, this lesson aims to prevent long-standing misconceptions and empower future generations to make informed decisions about vaccination. Nuestra Ciencia offers a promising model for combating vaccine hesitancy and promoting public health through effective science communication.

Investigating and understanding novel antibacterial agents is a necessary task as there is a constant increase in the number of multidrug-resistant bacterial species. The use of nanotechnology to combat drug-resistant bacteria is an important research area. The laboratory experiment described herein demonstrates that changes in the nanostructure of a material lead to significantly different antibacterial efficacies. Silver has been known to be an effective antibacterial agent throughout history, but its therapeutic uses are limited when present as either the bulk material or cations in solution. Silver nanoparticles (AgNPs)and DNA-templated silver nanoclusters (DNA-AgNCs) are both nanostructured silver materials that show vastly different antibacterial activities when incubated with "E. coli" in liquid culture. This work aims to provide students with hands-on experience in the synthesis and characterization of nanomaterials and basic microbiology skills; moreover, it is applicable to undergraduate and graduate curricula.

A main goal of academic courses is to help students acquire knowledge and skills that they can transfer to multiple contexts. In this article, we (i) examine students' responses to test question templates (TQTs), a framework intended to facilitate transfer, and (ii) determine whether similar transfer-promoting strategies are commonly embedded in published biology lessons. In study 1, in surveys administered over several academic quarters, students consistently reported that TQTs helped them transfer course content to exams and the real world; that multiple (two to five) examples were generally needed to understand a given TQT, leading >40% students to create their own additional examples; and that TQTs would be helpful in other science courses. In study 2, among 100 peer-reviewed lessons published by CourseSource or the National Center for Case Study Teaching in Science (NCCSTS), less than 5% of lessons gave students advice about exams or helped students create additional practice problems. The latter finding is not meant as criticism of these excellent lessons, which are a boon to the biology education community. However, with TQT-like prescriptions generally absent from peer-reviewed lessons, biology instructors may wish to supplement the lessons with TQT-like strategies to explicitly connect the material to subsequent exams.

Science literacy has many personal and societal benefits that allows for better informed decision-making. Although the importance of science literacy is recognized globally, there are many challenges associated with its promotion. Scientists are more frequently engaging with nonscientific audiences through public outreach activities and with increasing support from institutions and professional societies. This is especially true regarding microbiologists and other related professionals since the start of the global 2019 coronavirus disease pandemic heightened the need to convey novel and rapidly evolving scientific information to lay audiences. The means by which professionals engage with these audiences affect the efficacy of the relay of scientific information. One method of engagement is the "ambassador approach," which aims to establish dialogue among different groups of people and scientists. In this perspective article, we discuss this approach, highlighting activities for the promotion of science literacy organized by the American Society for Microbiology Ambassador Program and similar programs of other scientific societies. We discuss the benefits and challenges of implementing an ambassador approach, propose potential improvements that could be made to existing programs promoting science literacy, and ultimately advocate for increased implementation of science ambassador programs. [This article was written on behalf of the Young Leaders Circle of the American Society for Microbiology.]

Understanding molecular processes and coordinating the various activities across levels of organization in biological systems is a complicated task, yet many curricular guidelines indicate that undergraduate students should master it. Employing mechanistic reasoning can facilitate describing and investigating biological phenomena. Biofilms are an important system in microbiology and biology education. However, few empirical studies have been conducted on student learning of biofilms or how students utilize mechanistic reasoning related to systems thinking to explain biofilm formation. Using mechanistic reasoning and the theory of knowledge integration as conceptual and analytical frameworks, we examined the features of 9 undergraduate biology students' mechanistic models of a specific transition point in biofilm development. From these data, we constructed a model of knowledge integration in the context of biofilms, which categorizes students' knowledge based on features of their descriptions (e.g., entities, correct connections, and the nature of connections). We found that 4 of 9 students produced a fragmented model, 4 of 9 students produced a transitional model, and 1 student produced a connected model. Overall, students often did not discuss cell-cell communication mechanics in their mechanistic models and rarely included the role of gene regulation. Most connections were considered nonnormative and lacked important entities, leading to an abundance of unspecified causal connections. We recommend increasing instructional support of mechanistic reasoning within systems (e.g., identifying entities across levels of organization and their relevant activities) and creating opportunities for students to grapple with their understanding of various biological concepts and to explore how processes interact and connect in a complex system.

Course-based undergraduate research experiences (CUREs) are tools used to introduce students to authentic participation in science. Several specific CUREs have been shown to benefit students' interest and retention in the biological sciences. Nevertheless, CUREs vary greatly in terms of their context, methodology, and degree of research authenticity, so different types of CUREs may differently influence student outcomes. This programmatic diversity poses a challenge to educators who want to better understand which course components and features are reliably present in a CURE curriculum. To address these issues, we identified, catalogued, and classified 112 potential features of CUREs across the biosciences. To develop the list, we interviewed instructors experienced with teaching individual and large networked CUREs across a diversity of the biological disciplines, including: Squirrel-Net (field-based animal behavior), SEA-PHAGES (wet lab microbiology and computational microbiology), Tiny Earth (environmental and wet lab microbiology), PARE (environmental microbiology), and the Genomics Education Partnership (eukaryotic computational biology). Twenty-five interviewees contributed expert content in terms of CURE features and classification of those items into an organized list. The resulting list's categories encompasses student experiences with the following: (i) the scientific process; (ii) technical aspects of science; (iii) the professional development associated with research; and (iv) building scientific identity. The most striking insight was that CUREs vary widely in terms of which features they contain, since different CUREs will by necessity have different approaches to science and student involvement. We also identified several features commonly thought to be crucial to CUREs yet have ambiguous definitions. This ambiguity can potentially confound efforts to make CUREs research-authentic and aligned with the central goals of science. We disambiguate these terms and represent their varied meanings throughout the classification. We also provide instructor-friendly supplementary worksheets along with considerations for instructors interested in expanding their CURE course design, instruction, and equity.

There is evidence that education levels have an impact on people's attitudes toward vaccination. The recent COVID-19 pandemic has highlighted the need to maximize vaccinations - one of the most efficient ways to prevent the spread of infectious diseases. Young individuals play a major role in disease transmission due to their intense social life and frequent asymptomatic infections. In this study, a survey of upper secondary school students in Poland was conducted to assess their microbiological awareness depending on subjects that they studied on the extended level and COVID-19 vaccination willingness. Participants learning biology and chemistry on the extended level had significantly higher microbiological awareness. Clear proof of microbiological awareness's influence on vaccination willingness was not found. Although studying biology did not significantly influence students' willingness to be vaccinated, their place of residence did. Students from bigger cities were more willing to get vaccinated. These results show that while science education raises microbiological awareness among upper secondary school students, place of residence, likely through social pressure, is a more important factor influencing vaccination willingness. It is suggested that more effort should be put into educating society as a whole and encouraging vaccination particularly.

The world is changing: both a conventional and a vaccine passport are now needed to travel internationally. Mask mandates, and social distancing are the new norm in a rapidly changing society. These measures were put in place to control the spread of the highly infectious and often fatal COVID-19, caused by a viral agent, a microorganism, a zoonosis, and the cause of death for over 6 million people around the world. Considering this, maintaining biosecurity is important around the world to ensure public health. Biosecurity in New Zealand supposes that people including young people understand different pests and diseases that can harm public health. This qualitative study was conducted to gauge the biosecurity knowledge of 171 young people (14-15-year-olds). Young people were tested on their knowledge about biosecurity related plants, animals, and microorganisms. This paper reports specifically on the results of knowledge of microorganisms of young people. Results show that negative anthropocentric views dominate adolescents understanding of microorganisms and anthropomorphism is widely used to explain microorganism activity. An educational programme, targeted at developing a conceptual understanding about microorganisms starting at primary education may help develop a more educated global citizen, one versed in understanding the biology of microorganisms.

The Microbiology Concept Inventory is an assessment tool derived from the fundamental statements created by the American Society for Microbiology. This two-tier, multiple-choice question inventory requires students to choose the most correct answer for each question and provide a brief justification of their reasoning. Educators can utilize this tool to identify common misconceptions held by students and adjust curriculum to address and prevent the persistence of student misconceptions. Over the course of 5 years, the Microbiology Concept Inventory was annually administered to undergraduate students enrolled in entry-level, mid-level, and senior capstone microbiology courses at a mid-western rural university. Analysis was completed to compare course, year, majors and minors, gender, ethnicity, and cumulative GPA. Results of this study showed a significant difference in Microbiology Concept Inventory scores between students with high cumulative GPAs (3.5-4.0) and students with comparatively lower cumulative GPAs (2.5-2.99, 3.0-3.49). Results between the other demographic categories revealed statistically different scores in favor of white students, but no differences in scores between genders. The results suggest evidence of ethnic bias, but no gender bias as measured by the Microbiology Concept Inventory. Additionally, significant differences in scores across cohorts are indicative of improvements in the curricula due to prior targeted changes. Analysis of concept inventory results can guide curriculum changes for course instructors. Implementation of curriculum changes can enrich students' academic success.

The COVID-19 pandemic and the subsequent lockdown was particularly challenging for elementary students who experienced disruptions in almost all aspects of their daily activities. Our study addressed a dearth of U.S. studies documenting the adverse effects the pandemic created and continues to have for children by analyzing their drawings. This study was conducted post-lockdown after students resumed normal school operations. The Mosaic Approach framed this case study research that was conducted using drawings created by sixteen students in grades prekindergarten through fifth grade (ages 4 to 10 years old). Students drew what came to mind when thinking of COVID-19. We conducted a content analysis of the data and determined four dominant themes: (1) symptoms related to COVID-19, (2) evidence of psychological or emotional responses, (3) health and safety precautions, and (4) depictions of the virus cell. We assert children's drawings as a useful tool for educators to create opportunities to connect with students and potentially reduce their anxieties about issues, including those beyond the pandemic. This will be of interest to educators who may not have considered the power of children's drawings as a means to provide voice about current issues. It will also add to the global knowledge base about children's perceptions of COVID-19 and the resulting lockdown.

Objective: Although ADHD is highly heritable, some environmental factors contribute to its development. Given the growing evidence that gut microbiota was involved in psychiatric disorders, we aimed to identify the characteristic composition of the gut microbiota in ADHD. Methods: We recruited 47 medication-naive children and adolescents with ADHD, and 60 healthy controls (HCs). We used shotgun metagenomics to measure the structure of the gut microbiota and analyzed the difference in bacterial taxa between ADHD and HCs. Results: Significant differences were found between the ADHD and HC groups in both alpha diversity indices (Simpson index, p = 0.025 and Shannon index, p = 0.049) and beta diversity indices (Euclidean distance, Bray-Curtis distance, and JSD distance, p < 2.2e-16). Nine representative species best explain the difference. Conclusion: Patients with ADHD showed significant differences in the composition of the gut microbiota compared with HCs. These results may help identify potential biomarkers of ADHD.

Short chain fatty acids (SCFAs) are produced in the gut as a result of microbial action on ingested dietary fiber and have been associated with several health benefits. Herein an undergraduate student experiment that uses gas chromatography equipped with either a flame ionization detector or mass spectrometer for the analysis and quantitation of SCFAs in synthetic fecal material is described. The experiment provides students with valuable sample preparation and instrument operation skills and provides an opportunity for students to perform quantitative analysis using the method of internal standards. Subsequently, the experiment provides an opportunity for students to consolidate their learning of the key theoretical concepts including chromatographic separation by gas chromatography, and methods for confirming analyte identity using each detector type. Due to recent global interest in gut health, the experiment is topical and of interest to students. The experiment is designed for upper-division undergraduate analytical chemistry students.

Metacognition is often described as the awareness and regulation of learning. It uses strategies which include monitoring one's own thinking, engaging in active planning and self-evaluating one's study habits. Bloom's taxonomy can be used as a metacognitive tool to guide students' study strategies and thus improve their academic performance by promoting higher order learning. The following study was conducted over multiple years and in several university biology classrooms to determine whether a brief instructional activity on metacognition and Bloom's taxonomy would cause students to reflect upon and perhaps revise their study strategies. The results of our study suggest that with a minimal effort, and using simple, universal metacognition interventions, instructors can elicit students to reflect upon their own thinking processes, revise their study strategies to foster deeper learning, and achieve higher learning outcomes. An additional, significant outcome of the metacognition interventions presented here could be the transformation of individual student engagement with course content into a more holistic, collaborative learning community.

After a time away from the classrooms and laboratories due to the global pandemic, the return to teaching activities during the semester represented a challenge to both teachers and students. Our particular situation in a Microbial Physiology course was the necessity of imparting in shorter time, laboratory practices that usually take longer. This article describes a 2-week-long laboratory exercise that covers several concepts in an interrelated way: conjugation as a gene transfer mechanism, regulation of microbial physiology, production of secondary metabolites, degradation of macromolecules, and biofilm formation. Utilizing a Quorum Quenching (QQ) strategy, the Quorum Sensing (QS) system of "Pseudomonas aeruginosa" is first attenuated. Then, phenotypes regulated by QS are evidenced. QS is a regulatory mechanism of microbial physiology that relies on signal molecules. QS is related in "P. aeruginosa" to several virulence factors, some of which are exploited in the laboratory practices presented in this work. QQ is a phenomenon by which QS is interrupted or attenuated. We utilized a QQ approach based on the enzymatic degradation of the "P. aeruginosa" QS signals to evidence QS-regulated traits that are relevant to our Microbial Physiology course. Results obtained with the same test performed by a random group of students before and after the activities show the positive effectiveness of the approach presented in this work.

Retrieval practice has been proven effective in conceptual science learning, and retesting has been applied in retrieval practice and has been shown to lead to significant improvements in learning outcomes. In this study, retesting was employed in an online microbiology course to evaluate the attitudes and behaviors of college students about this approach. The students were offered the same course materials and requirements except for three different options: retesting of exams without practice quizzes, retesting of practice quizzes with points, or retesting of practice quizzes without points. Our data indicate that retesting improved the exam grades, especially for exams with a longer interval period between two consecutive testing attempts. Not surprisingly, the practice quizzes that used points encouraged more students to take practice quizzes, and their exam grades were improved. We found that not all students would utilize the retesting opportunities to enhance their retention of information, which could indicate a lower level of engagement in distance learning.

This article outlines the results from an investigation on elementary school students designed to find out whether the coronavirus pandemic had an impact on their conceptualisation of microorganisms. We compared 9- to 11-year-old children's drawings and answers to questionnaires conducted before the pandemic (during 2017 and 2018, N = 137) with those conducted after the pandemic (during 2022, N = 94). We found that the impact has been deep. On the one hand, the post-pandemic group not only reinforced their negative image about microorganisms but assimilated the group of microorganisms to that of viruses. Moreover, most of their representations showed great similarities to the images of the typical sphere-with-peaks coronavirus presented in public media. On the other hand, the tendency to associate microorganisms predominantly with human beings decreased in this group at the expense of an increase in the notion of their ubiquity. These results are a starting point to design new didactic strategies to capitalise on informal learning during the pandemic and channel it towards scientifically correct models.

Undergraduate institutions serve as stepping stones to students' careers. Teaching and learning in science classrooms require quality and integrated teaching-research learning experiences that prepare students to advance their careers. Using publicly available data sets and open-access data analyses software can be impactful for engaging students in meaningful research experiences while keeping institutional expenses associated with implementing and supporting research opportunities low. In this article, we share two examples of student-led data research that utilized open data and software to analyze microbial sequence data. As part of this process, we also recognized the need for discipline-specific databases that can hold a record of publicly available data. Such a setup will support undergraduate educators and students in accessing data relevant to their requirements, thereby narrowing the gap between data availability and accessibility. Finally, both examples illustrate the benefits of using open resources in supporting student learning, with the possibility of using such resources to develop course-based undergraduate research experiences as part of course curricula.

Undergraduate research experiences are key to preparing STEM students for a range of careers and graduate programs, and to impacting retention in STEM. Providing undergraduate research experiences can be challenging for institutions due to the high cost associated with equipment and reagents, lab space, and research mentors. In this study, we present an upper-level microbiology seminar course that does not require these resources, as each student chooses and performs their own research project using data obtained from publicly available datasets. The faculty member provides hands-on instruction and regular feedback to mentor the cohort of students through all stages of their research projects, from honing a research question, to choosing a dataset, to data analysis and visualization. Students build science communication skills through each writing a scientific paper, and creating and presenting a scientific poster. These papers and presentations, along with results from student pre- and post-surveys, demonstrate that students built research and communication skills, while also building their confidence and interest in science careers. To access this research experience, students only need to register for this course; no application or selection is required, and no prior research experience is expected. The use of publicly available data makes this course a low-cost way to integrate authentic research projects into the college curriculum, and can be adapted to courses in any discipline. Such "low-cost CUREs" (course-based undergraduate research experiences) can be used to build capacity for undergraduate research experiences that are so crucial to preparing students for opportunities in and beyond college.

As research of benefits and detriments of pesticides and biocides progresses, people's knowledge needs to be updated. This study takes an audience perspective on how practitioners may improve communication. Through online focus group discussions of how and why Danes acquire knowledge of pesticides and biocides, we find that focusing on improving people's knowledge structures, heuristics and self-efficacy may improve people's ability to acquire such knowledge and in turn improve their motivation. This paper provides suggestions for how practitioners may create more effective communication.

Since the start of the COVID-19 pandemic, there has been a surfeit of information and misinformation in the media about it. The lockdown in England meant that schools were closed from March to June, meaning that students had limited access, in school, to ask questions and discuss the biology of the novel virus (SARS-CoV-2) or the impact of the pandemic on themselves, their families and friends. In this small-scale exploratory study, we decided to ask students (15- to 16-year-olds) on their return to school in June 2020 and in September 2020, what they wanted to know about COVID-19. Findings show that their questions were similar at both time points, indicating that students wanted to know the same things. This suggests that despite the high volume of information available in the media, some of the students' questions had not been answered or that sources of information were confused and at times contradictory. Interestingly, the questions they asked were based on reliable sources of news rather than fake news, and this finding seems to contradict the literature that indicates young people are prone to believing misinformation. The implications for teaching and learning about COVID-19, and other zoonotic diseases as socio-scientific issues are discussed.

Science museums are key locations for informal education. They also enable research that explores how families structure their activities and conversations and how these contribute to learning experiences. The aim of this exploratory study, using qualitative and quantitative methodologies, was to analyse the process of family interactions during visits to a Brazilian science museum focused on microbiology and how their conversations mediated their learning experiences. Four groups, each consisting of a single family with children, participated in the study. Their visits were recorded using a subjective camera, and the audiovisual data were analysed regarding types of interactions and conversational content, based on an analysis protocol. The results reveal that the interactions and social dynamics that family groups engaged in during their visit provided cognitive and social learning experiences. The study also offers evidence on the role of children, the importance of conversations with adults during the visits, and the relevance of objects on exhibition in promoting learning conversations.

This paper describes a teaching experiment in a Numerical Methods course for Master of Science students. The experiment uses scientific papers to develop modelling studies in the context of wine fermentation microbial interactions. The course involves theoretical and laboratory classes that focus on implementing numerical methods using Matlab for Initial Value Problems and Boundary Value Problems. The students are asked to formalise the mathematical model and build their own experiments using the information provided in the papers. Additionally, a parameter estimation experiment is organised, which involves generating synthetic data and computing noisy data to estimate the natural death rate of sensitive yeast. The results show that data noise significantly affects the parameter estimate and that scaling the data can help reduce the impact of measurement errors. The presented results can be used to investigate other possible assignments, such as how the evaluation of the Jacobian affects the estimation performance and compare different optimisation algorithms.

Decomposition of organic matter controls the flow of carbon and nutrients in terrestrial and aquatic ecosystems. Several kinetic laws have been proposed to describe decomposition rates, but they neglect adaptation of the microbial decomposer to environmental conditions. Here we formalise decomposition as an optimal control problem by assuming that microorganisms regulate the uptake rate of a substrate to maximise their growth over the period of decomposition. The result is an optimal control problem consisting of two differential equations and auxiliary conditions that determine the optimal value of the control variable (the uptake rate), the remaining substrate at any given time, and the optimal completion time. This problem serves as a case study to illustrate the solution of differential equations and optimal control problems for students in undergraduate courses. The mathematical analysis of the problem requires rewriting the differential equations in reverse time along with the solution of a nonhomogeneous linear first order differential equation. We then return to modelling with some biologically motivated questions about how the parameters of the model representing environmental conditions and microbial functional traits affect the outcome. Finally, we discuss alternative ways to use the material with students.

During the COVID-19 pandemic, various misinformation circulating among the public has the potential to be a source of misconceptions. This study aimed to validate the online three-tier diagnostic instrument test for Virus and COVID-19 as well as analyze the level of misconceptions experienced by students. The Treagust model is used as a reference for the instrument development process. Three public high schools providing 187 second grade students who had previously studied Virus content were involved as research respondents, The data analysis techniques used were descriptive statistics. Construct and content validity obtained from expert validation reached 89.88% and 97.12%, respectively. The results of data analysis also inform that each item was valid and the instrument was reliable. The average percentage of students who experience misconceptions was 39.96%. The average percentage of students who understand the topic correctly was 32.10%. The percentage of lucky guess reached 14.83% and students with low level of knowledge reached 13.10%. The diagnostic test as overall, was successful in detecting students' misconceptions. To overcome misconceptions and improve the quality of learning during a pandemic, biology learning must apply creative learning models, methodologies, and teaching materials.

The gut microbiota was reported to differ between children with autism spectrum disorder (ASD) and typically developing (TD) children, and dysbiosis of the gut microbiota in preterm infants is common. Here, we explored the characteristics of gut microbiota in children born preterm with ASD. We performed 16S rRNA gene sequencing using stool samples from ASD children born preterm and TD children born preterm. Alpha diversity was significantly greater in the ASD group. A comparison of beta diversity showed different clusters. Linear discriminant analysis effect size analysis revealed significantly more Firmicutes in the ASD group compared with the TD group. In conclusion, the gut microbiota in children born preterm differs between children with ASD and TD.

Students possess informal, intuitive ways of reasoning about the world, including biological phenomena. Although useful in some cases, intuitive reasoning can also lead to the development of scientifically inaccurate ideas that conflict with central concepts taught in formal biology education settings, including evolution. Using antibiotic resistance as an example of evolution, we developed a set of reading interventions and an assessment tool to examine the extent to which differences in instructional language affect undergraduate student misconceptions and intuitive reasoning. We find that readings that confront intuitive misconceptions can be more effective in reducing those misconceptions than factual explanations of antibiotic resistance that fail to confront misconceptions. Overall, our findings build upon investigations of intuitive reasoning in biology, examine possible instructional interventions, and raise questions about effective implementation of reading interventions in addressing persistent misconceptions about biology.