The following story tells the details of the ketone body metabolism, focusing on the needs of the brain in prolonged fasting conditions. This literary composition highlights the use of ketone bodies as an important metabolic adaptation that avoids excessive protein degradation and allows for greater survival. The liver produces ketone bodies that…

Second-semester biochemistry students at two primarily undergraduate institutions, the California State Polytechnic University, Pomona, and the State University of New York College at Cortland, worked on a collaborative, semester-long project that resulted in the production of bioinfographics focused on metabolic pathways. Students were divided…

Elevated whole blood serotonin (WB5-HT) is a well-replicated biomarker in autism spectrum disorder (ASD). Decreased platelet serotonin receptor 5-HT[subscript 2A] binding has been reported in ASD. WB5-HT levels and platelet 5-HT[subscript 2A] specific binding were obtained from 110 individuals with ASD and 18 controls. Individuals with ASD had…

School recess is a daily opportunity for school-age students to be physically active. However, in some territories teachers often use recess for other purposes (e.g., children's poor classroom behavior might be punished with reduced time for recess). This study aimed to examine the impact of such practices on children's physical activity (PA) and…

The following survey study uses a quantitative research design to investigate motivational and affective aspects of students (aged 14-17) in a mathematical workshop on graph theory. Motivational and affective aspects are related to heart rate measurement (using the digital medium of a pulse watch) in mathematical knowledge development processes in…

Background: There are two major types of pictures that have been the focus of multimedia learning research, namely, seductive and interpretational pictures. Despite an increasing body of literature documenting the effects of either seductive or interpretational pictures added to text-based materials, there is a paucity of research explicitly…

This study investigated the effects of two types of oral explanations (ie, self-explanation vs. instructional explanation) and drawing activity (no drawing vs. drawing) on video learning outcomes. These outcomes were measured by visual attention to the video (indexed by fixation time on text and diagram areas), explanation quality (indexed by…

Here we describe an approach and overall concept of how to train undergraduate university students to understand basic regulation and integration of glucose and fatty acid metabolism in response to fasting, intake of carbohydrates, and aerobic exercise. During lectures and both theoretical and practical sessions, the students read, analyze, and…

This paper advances in the understanding of motivation in terms of flow in groups from a physiological perspective. We use wearable devices to monitor the heart rate variation during a set of sessions of face-to-face STEAM project-based learning. By using Action Research with mixed-methods design, we observed a set of 28 students in real-world…

Several studies show altered heart rate variability (HRV) in autism spectrum disorder (ASD), but findings are neither universal nor specific to ASD. We apply a set of linear and nonlinear HRV measures--including phase rectified signal averaging--to segments of resting ECG data collected from school-age children with ASD, age-matched typically…

Metabolic systems form the very foundation of life and as such are broadly taught in the molecular life sciences. Here, we describe the biochemistry educator community-based development and use of an assessment instrument designed to evaluate students' ideas about metabolic pathway dynamics and regulation in undergraduate biochemistry courses.…

While metabolism is a fundamental process in physiology, the measurement of metabolism by living animals often requires specialized and expensive equipment. In 2016, I developed a novel laboratory exercise for animal physiology students where students were able to observe the effects of temperature and long-term temperature acclimation on the…

This study evaluated the reliability of the portable Lactate Pro 2 analyzer (LP2), and its validity compared to a laboratory-based analyzer, YSI 1500 Sport (YSI). Blood samples (n = 258) were collected during 44 graded incremental rowing tests, with data from 17 tests used to quantify load, heart rate, and oxygen consumption at lactate threshold.…

Students encounter antioxidants in many areas of their daily life. Antioxidants play a crucial role in cosmetics, in nutritional or dietary supplements, as additives for the preservation of food, and as a natural component in fruit and vegetables. Accordingly, antioxidants are believed to promote health through the prevention of oxidative stress…

Regulation is a key concept for understanding the dynamics of metabolism in bacteria. This report outlines a simple laboratory experiment aimed at studying a key form of regulation in bacterial metabolism, exemplifying how microbes switch the flux of carbon towards alternative metabolic fates as a function of nutrient availability and according to…