Is Support in the Anxiety of the Beholder? How Anxiety Interacts with Perceptions of Instructor Support in Introductory Biology Classes.

High levels of student anxiety are negatively related to degree persistence, academic achievement, and student perceptions of instructor support. Anxiety levels vary along many axes-among classes, within students in the same class, and over time-creating a dynamic emotional landscape in classrooms. In this study, we examined the relationship between student anxiety levels and perceptions of instructor support within three introductory biology classes at two timepoints during a semester.

The Impact of Load Mass and Distribution on Heart Rate, Perceived Exertion, and Accelerometer Measured Physical Activity During Running.

Many tactical athletes (military and emergency personnel) have fixed load carriage occupational requirements. Understanding the effects of running with common military "fighting loads" (no load to approximately 18 kg) on heart rate (HR), perceived exertion (RPE), and measuring it with accelerometers has implications for training and ensuring physical readiness of recruits. Eleven (7 male and 4 female) civilians (21.

Active Virtual Reality Games: Comparing Energy Expenditure, Game Experience, and Cybersickness to Traditional Gaming and Exercise in Youth Aged 8-12.

The purpose of this study was to (1) quantify the oxygen consumption (VO) and heart rate (HR) of virtual reality (VR) exergaming in youth, (2) compare the physical activity intensity of VR gaming to moderate-intensity thresholds, and (3) quantify the game experience and cybersickness of VR gaming, compared with traditional gaming. Youth ( = 28; age, 9.4 ± 1.

High Levels of Triggering Receptor Expressed in Myeloid Cells-Like Transcript-1 Positive, but Not Glycoprotein 1b+, Microparticles Are Associated With Poor Outcomes in Acute Respiratory Distress Syndrome.

Objectives: To identify triggering receptor expressed in myeloid cells-like transcript-1 positive (TLT-1+) microparticles (MPs) and evaluate if their presence is associated with clinical outcomes and/or disease severity in acute respiratory distress syndrome (ARDS).

Design: Retrospective cohort study.

Setting: ARDS Network clinical trials.

Green and red fluorescent strains of HGB2511, the bacterial symbiont of the nematode (India).

entomopathogenic nematodes form specific, obligate symbiotic associations with gram-negative, gammaproteobacteria members of the genus. Together, the nematodes and symbiotic bacteria infect and kill insects, utilize the nutrient-rich cadaver for reproduction, and then reassociate, the bacteria colonizing the nematodes' anterior intestines before the nematodes leave the cadaver to search for new prey. In addition to their use in biocontrol of insect pests, these nematode-bacteria pairs are highly tractable experimental laboratory models for animal-microbe symbiosis and parasitism research.

The Characterization and Evaluation of the Soluble Triggering Receptor Expressed on Myeloid Cells-like Transcript-1 in Stable Coronary Artery Disease.

Platelets play crucial roles in the development and progression of coronary artery disease (CAD). The triggering receptor expressed in myeloid cells-like transcript-1 (TLT-1) is stored in platelet α granules, and activated platelets release a soluble fragment (sTLT-1). We set out to better characterize the constituent amino acids of sTLT-1 and to evaluate sTLT-1 for use as a biomarker in patients with stable CAD.

Risks of exposure to microbial contamination in eyewash stations.

Emergency eyewash stations are important safety equipment characterized by long water age. Significant increases in microbial contamination were detected in eyewash stations with water ages longer than 1 day. Enterobacter and Mycobacterium were identified in high abundance in eyewash stations with prolonged water age, suggesting eyewash stations as potential sources of pathogen exposure.

Chemolithoautotroph distributions across the subsurface of a convergent margin.

Subducting oceanic crusts release fluids rich in biologically relevant compounds into the overriding plate, fueling subsurface chemolithoautotrophic ecosystems. To understand the impact of subsurface geochemistry on microbial communities, we collected fluid and sediments from 14 natural springs across a ~200 km transect across the Costa Rican convergent margin and performed shotgun metagenomics. The resulting 404 metagenome-assembled genomes (MAGs) cluster into geologically distinct regions based on MAG abundance patterns: outer forearc-only (25% of total relative abundance), forearc/arc-only (38% of total relative abundance), and delocalized (37% of total relative abundance) clusters.

mebipred: identifying metal-binding potential in protein sequence.

Motivation: metal-binding proteins have a central role in maintaining life processes. Nearly one-third of known protein structures contain metal ions that are used for a variety of needs, such as catalysis, DNA/RNA binding, protein structure stability, etc. Identifying metal-binding proteins is thus crucial for understanding the mechanisms of cellular activity.

Personality traits predict attitudes toward individuals with intellectual disability.

Explaining individual differences in people's attitudes toward individuals with intellectual disability (ID) is important for increasing social inclusion of people with ID. The aim of the current study was to replicate and extend past research by formulating a single model of attitudes toward individuals with ID with several predictors: personality traits, quality and quantity of contact, perceived knowledge of ID, social desirability, and demographics. A sample of 221 undergraduate students in the United States completed several surveys in a lab setting: the Mental Retardation Attitude Inventory-Revised, the Big Five Inventory, McManus 's measures of contact with and perceived knowledge of ID, and the Marlowe-Crowne Social Desirability Scale.

Screening for androgen agonists using autonomously bioluminescent HEK293 reporter cells.

Due to the public health concerns of endocrine-disrupting chemicals, there is an increasing demand to develop improved high-throughput detection assays for enhanced exposure control and risk assessment. A substrate-free, autobioluminescent HEK293 assay was developed to screen compounds for their ability to induce androgen receptor (AR)-mediated transcriptional activation. The assay was validated against a group of 40 recommended chemicals and achieved an overall 87.

Novel taxa of Acidobacteriota implicated in seafloor sulfur cycling.

Acidobacteriota are widespread and often abundant in marine sediments, yet their metabolic and ecological properties are poorly understood. Here, we examined metabolisms and distributions of Acidobacteriota in marine sediments of Svalbard by functional predictions from metagenome-assembled genomes (MAGs), amplicon sequencing of 16S rRNA and dissimilatory sulfite reductase (dsrB) genes and transcripts, and gene expression analyses of tetrathionate-amended microcosms. Acidobacteriota were the second most abundant dsrB-harboring (averaging 13%) phylum after Desulfobacterota in Svalbard sediments, and represented 4% of dsrB transcripts on average.

Student Perceptions of Instructor Supportiveness: What Characteristics Make a Difference?

The use of active learning in the undergraduate biology classroom improves student learning and classroom equity, but its use can lead to student anxiety. Instructors can reduce student anxiety through practices that convey supportiveness and valuing of students. We collected students' ratings of their classroom anxiety and perceptions of their instructors' supportiveness, as well as open-response reasons for their ratings, in six large introductory biology classes.

Everyday Memory in People with Down Syndrome.

Although memory functions in people with Down Syndrome (DS) have been studied extensively, how well people with DS remember things about everyday life is not well understood. In the current study, 31 adolescents/young adults with DS and 26 with intellectual disabilities (ID) of mixed etiology (not DS) participated. They completed an everyday memory questionnaire about personal facts and recent events (e.

Differences in Physical Activity During Walking and Two Pokémon Go Playing Styles.

Two self-selected playing styles of Pokémon Go (PG) have been observed: intermittent and continuous. However, it is unknown how playing style impacts volume and pattern of physical activity (PA) compared with a traditional walking bout. Twenty experienced PG players followed a 1.

Sustained attention to response task performance trajectories in Down syndrome.

Background: Sustained attention (SA) has been reported to be a unitary construct in youth with Down syndrome (DS), but additional analyses of how auditory and visual SA change over task presentation time are warranted.

Method: The current study was a secondary data analysis employing multilevel modeling. Specifically, we compared auditory and visual sustained attention to response task (SART) performance trajectories within a group of 42 youth with DS aged 10 to 22 years.

I can see myself helping: The effect of self-awareness on prosocial behaviour.

Many studies indicate that increasing self-awareness leads to individuals reflecting on their values and ideals (Silvia & Duval, 2001). This self-reflection appears to increase prosocial behaviour (Berkowitz, 1987). However, previously studies typically manipulated self-awareness in situations in which the individual may have felt pressure from the researcher to help.

How do undergraduates cope with anxiety resulting from active learning practices in introductory biology?

Active learning pedagogies decrease failure rates in undergraduate introductory biology courses, but these practices also cause anxiety for some students. Classroom anxiety can impact student learning and has been associated with decreased student retention in the major, but little is known about how students cope with anxiety caused by active learning practices. In this study, we investigated student coping strategies for various types of active learning (clickers, volunteering to answer a question, cold calling, and group work) that were used in 13 introductory Biology courses at a large public university in 2016-2017.

The Acquisition of Survey Knowledge by Individuals With Down Syndrome.

People with Down syndrome often exhibit deficiencies in wayfinding activities, particularly route learning (e.g., Courbois et al.

A Modified Nominal Group Technique (mNGT) - Finding Priorities in Research.

The objective of this study was to describe a modified nominal group technique (mNGT) approach to assess community health priorities and its application to a childhood obesity prevention project conducted with the high school population. This manuscript provides detailed information of a mNGT separately conducted with 3 cohorts, (students, teachers/administration, parents). Participants used a response sheet to brainstorm, document top 5 responses, and rank each response individually.

Platelet biology of the rapidly failing lung.

Acute respiratory distress syndrome (ARDS) is characterized by a rapid-onset respiratory failure with a mortality rate of approximately 40%. This physiologic inflammatory process is mediated by disruption of the alveolar-vascular interface, leading to pulmonary oedema and impaired oxygen exchange, which often warrants mechanical ventilation to increase survival in the acute setting. One of the least understood aspects of ARDS is the role of the platelets in this process.

Student Anxiety and Perception of Difficulty Impact Performance and Persistence in Introductory Biology Courses.

Students respond to classroom activities and achievement outcomes with a variety of emotions that can impact student success. One emotion students experience is anxiety, which can negatively impact student performance and persistence. This study investigated what types of classroom anxiety were related to student performance in the course and persistence in the major.

The effect varied scanning electron microscopy desiccation techniques has on demineralized dentin.

The study objective was to assess (a) the effect of a rubbing-application of ethylenediaminetetraacetic acid (EDTA) or citric acid (CA) has on the ultrastructure of surface dentin and (b) the effect of two scanning electron microscopy (SEM) desiccation preparation techniques have on the collagen surface produced. Treatment regions on proximal root surfaces of extracted human teeth were root planned to expose dentin. Cotton pellets soaked in either 30% CA or 24% EDTA solution were rubbed on the treatment region then processed for SEM using one of two desiccation techniques, that is, (a) critically point dried from liquid CO (control) or (b) air-dried from tetramethylsilane (experimental).

Physical activity patterns and multimorbidity burden of older adults with different levels of functional status: NHANES 2003-2006.

Background: Physical function and physical activity decrease with age, but differences in physical activity patterns within different physical functioning groups are unknown.

Objectives: To describe physical activity patterns and multimorbidity burden by physical function group and age.

Methods: Actigraph accelerometer-derived physical activity patterns were compared by physical function (high functioning, activity limitations, activity of daily living disabled) determined by questionnaire and age among 2174 older adults (mean age = 70.

Hispanic 'personal parishes' in the contemporary U.S. Catholic Church.

U.S. Catholicism spawned hundreds of national ("personal") parishes, most serving early European immigrants.