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Sensitivity of bulk electrical impedance spectroscopy (bio-capacitance) probes to cell and culture properties: Study on CHO cell cultures.
Biotechnol Prog
December 2024
Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, Manitoba, Canada.
Bulk electrical impedance spectroscopy (bio-capacitance) probes, hold significant promise for real-time cell monitoring in bioprocesses. Focusing on Chinese hamster ovary (CHO) cells, we present a sensitivity analysis framework to assess the impact of cell and culture properties on the complex permittivity spectrum, ε, and its associated parameters, permittivity increment, Δε, critical frequency, f, and Cole-Cole parameter, α, measured by bio-capacitance probes. Our sensitivity analysis showed that Δε is highly sensitive to cell size and concentration, making it suitable for estimating biovolume during the exponential growth phase, whereas f provides information about cumulative changes in cell size, membrane permittivity, and cytoplasm conductivity during the transition to death phase.
View Article and Find Full Text PDFEnhancing assessment for eating disorders: the impact of a podcast-based pre-treatment psychoeducation intervention.
Eat Disord
December 2024
Department of Psychology, University of Sheffield, Sheffield, UK.
This study reports the outcome of a low intensity pre-treatment intervention (a guided e-health podcast) for patients with anorexia nervosa and bulimia nervosa, delivered between assessment and the start of the full outpatient treatment programme. A case series design was used. A total of 254 patients at a specialist eating disorder service were offered a pre-treatment three-week psychoeducational intervention (Keeping Myself Safe; KMS), and 203 undertook the intervention.
View Article and Find Full Text PDFAltered neural recruitment during single and dual tasks in athletes with repeat concussion.
Front Hum Neurosci
December 2024
Department of Health and Exercise Science, Colorado State University, Fort Collins, CO, United States.
Sports-related concussions (SRCs) pose significant challenges to college-aged athletes, eliciting both immediate symptoms and subacute cognitive and motor function impairment. While most symptoms and impairments resolve within weeks, athletes with repeat SRCs may experience heightened risk for prolonged recovery trajectories, future musculoskeletal injuries, and long-term neurocognitive deficits. This study aimed to investigate the impact of repeat SRCs on dual task performance and associated neural recruitment using functional near-infrared spectroscopy (fNIRS).
View Article and Find Full Text PDFFrom concept to impact: strategic guidelines for environmental behavior change interventions.
Front Psychol
December 2024
Sustainable Energy and Climate Policies Research Centre (SENLAB), Izmir University of Economics, Izmir, Türkiye.
Interventions aiming at behavioral change are common tools for assessing and stimulating environmentally friendly lifestyles. To obtain representative and scalable results from the interventions, the experimental design of the interventions is crucial. Likewise, an operational plan is significant concerning the coherence and consistency of the interventions and the comparability of the results from different interventions.
View Article and Find Full Text PDFAssociation between positive youth development and family functioning in the Chinese context: a four-wave longitudinal survey in mainland China.
Front Psychol
December 2024
Department of Applied Social Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.
Introduction: There is a notable scarcity of research examining the developmental trajectories of positive youth development (PYD) attributes among Chinese preadolescents and adolescents and the predictive effect of family functioning on these trajectories over time.
Methods: Using four waves of data, this longitudinal study investigated preadolescents and adolescents in China in January 2020 (T1), June 2020 (T2), June 2021 (T3), and June 2022 (T4). The study utilized the 90-item "Chinese Positive Youth Development Scale" and the 33-item "Chinese Family Assessment Instrument" to assess PYD and family functioning, respectively.
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