Preliminary results on methane emission by nelore cattle in Brazil grazing Brachiaria brizantha cv. Marandu.

Methane emissions by Nelore cattle grazing Brachiaria brizantha were monitored during winter (August) and spring (December) seasons. Sixteen Nelore steers with live weight (LW) varying from 206 to 525 kg, 196 to 538kg during winter and spring, respectively. Methane emissions were measured with the sulfur hexafluoride (SF6) technique. Mean methane emissions were 102.3 and 136.5 g/animal/day and 0.343 and 0.420 g/kg LW/day in winter and spring, respectively. The mean emissions showed 39.7 and 35.3 g/kgDDMI for winter and spring seasons, respectively. For both seasons a high associative effect was observed of CH4 emissions and live weight (r=0.78 and r= 0.97, respectively) and DDMI (r= 0.73 and r=0.96, respectively). Relative methane emissions (g/kgLW) were inversely correlated with LW (r=-0.75 and -0.87 for winter and wet seasons, respectively). Variations in observed methane production among seasons were related to forage quality that affects digestibility and consumption

Self-Efficacy with Telehealth Examination: the Doctor of Physical Therapy Student Perspective

Introduction: The shift to telehealth exposed gaps in our understanding of how physical therapy students perceive patient assessment in a remote situation using the examination component of the patient/client management (PCM) model. The purpose of the study was to compare Doctor of Physical Therapy (DPT) students’ self-efficacy performing patient assessment using the examination component of the PCM model using telehealth compared with conventional examination. To achieve the purpose of this study, the Physical Therapist Self-Efficacy (PTSE) scale was used. More specifically, self-efficacy in clinical reasoning was measured using the following items: (1) PTSE total score (2) performance of tests and measures, (3) determining when to refer to another practitioner, and (4) screening for primary medical disease. Methods: A survey-based descriptive and exploratory repeated measures design was used, with surveys distributed to entry-level DPT students during their clinical experiences in the United States during the Fall 2020 semester. A convenience sample of 35 second- and third-year entry-level DPT students who reported provided both telehealth and traditional examinations during clinical experiences was used. Descriptive and inferential statistics were used to evaluate within group differences comparing student self-efficacy using telehealth and conventional examination. Results: Wilcoxon sign ranks revealed statistically significant differences in self-efficacy scores of students conducting patient assessment using telehealth compared to conventional examination. More specifically, scores for telehealth were lower (P \u3c 0.001) compared to conventional examination in PTSE total score, performance of tests and measures, determining when to refer to another practitioner, and medical screening for primary disease. Discussion: Doctor of Physical Therapy students’ self-efficacy was lower when providing telehealth across all PTSE questions pertaining to the examination component of the PCM model. Exploring telehealth content and sequence in entry-level physical therapy curriculum may help students feel more prepared to perform telehealth examination. Key words: Examination, Physical therapy, Self-efficacy, Students, Telehealth

Ethnicity Does Not Impact Physical Therapy Students’ Clinical Readiness and Performance, a United States Exploratory Study

Purpose: To explore the impact of ethnicity on clinical readiness and performance among Doctor of Physical Therapy (DPT) students, as determined by 1) Physical Therapist Self-Efficacy (PTSE) score, 2) self-confidence treating patients, and 3) final American Physical Therapy Association (APTA) Clinical Performance Instrument (CPI) clinical reasoning and summative ratings during clinical experiences. Methods: This study is a survey-based, descriptive, and exploratory cross-sectional research design involving sample of 211 DPT students evaluated for differences across ethnic students’ groups 1) PTSE score during student clinical experiences, 2) confidence with treating initial and subsequent same-patient visits, and 3) final CPI clinical reasoning and summative scores during clinical experiences. Results: Kruskal-Wallis test showed no difference across ethnic groups (American Indian or Alaskan Native, Asian/Pacific Islander, Black or African American, Hispanic, White or Caucasian, prefer not to answer, and multiple ethnicity) in 1) clinical reasoning self-efficacy (PTSE), n=211, p=.438; 2) confidence treating at initial visit n=211, p=.088 and subsequent patient visits n=211, p=.584; and 3) clinical performance on the CPI for clinical reasoning n=211, p=.273 and summative n=211, p=.189 scores. Conclusions and Recommendations: All ethnic groups demonstrated strong clinical readiness and performance during each clinical experience level. Ethnic groups did not differ on clinical reasoning self-efficacy or confidence treating patients. Although the gap appears to be closing, there continues to be underrepresentation of ethnic groups in DPT programs. We recommend investigating factors impacting underrepresentation of ethnic groups in DPT academic programs to explore initiatives to close the diversity gap and best match societal representation

Oxygen and Carbon Dioxide Rhythms Are Circadian Clock Controlled and Differentially Directed by Behavioral Signals

This is the author accepted manuscript. The final version is available from Elsevier (Cell Press).Daily rhythms in animal physiology are driven by endogenous circadian clocks in part through rest-activity and feeding-fasting cycles. Here, we examined principles that govern daily respiration. We monitored oxygen consumption and carbon dioxide release, as well as tissue oxygenation in freely moving animals to specifically dissect the role of circadian clocks and feeding time on daily respiration. We found that daily rhythms in oxygen and carbon dioxide are clock controlled and that time-restricted feeding restores their rhythmicity in clock-deficient mice. Remarkably, day-time feeding dissociated oxygen rhythms from carbon dioxide oscillations, whereby oxygen followed activity, and carbon dioxide was shifted and aligned with food intake. In addition, changes in carbon dioxide levels altered clock gene expression and phase shifted the clock. Collectively, our findings indicate that oxygen and carbon dioxide rhythms are clock controlled and feeding regulated and support a potential role for carbon dioxide in phase resetting peripheral clocks upon feeding.British Heart FoundationEuropean Research CouncilEuropean Union, Seventh Framework Program, Marie Curie Action

Doctor of Physical Therapy students’ clinical reasoning readiness and confidence treating with telehealth: a United States survey

Purpose: Telehealth has an emerging footprint on entry-level physical therapy programs. Students’ readiness for clinical reasoning with virtual versus traditional face-to-face treatment remains unknown. The purpose of this study was to evaluate Doctor of Physical Therapy (DPT) students’ preparedness for clinical experiences with and without telehealth. Methods: A descriptive and exploratory cross-sectional survey was employed, with a voluntary convenience sample of 211 second- and third-year university DPT students during Fall 2020 clinical experiences. Descriptive and inferential statistics evaluated differences in DPT students’ (1) Physical Therapist Self-Efficacy (PTSE) scale scores, (2) confidence with treating initial and subsequent same-patient visits, and (3) final Clinical Performance Instrument (CPI) clinical reasoning and summative scores during clinical experiences with and without telehealth. Results: Telehealth availability was 40.3%, with 16.6% of DPT students reporting participation. Most students reported being comfortable (39.3%) or neutral (32.2%) using telehealth. DPT students’ confidence level using telehealth to treat was 74% on initial and 97% on subsequent same-patient visits. Mean PTSE scores were significantly lower during clinical experiences with telehealth (13.1) compared to traditional experiences (15.1) (P <.001) and for integrated (second-year) (14.1) compared to terminal (third-year) clinical experiences (15.5) (P <.001). For traditional experiences, weak positive associations were demonstrated between PTSE and CPI scores. There were no significant differences for CPI scores between telehealth and traditional experiences. Conclusion: While entry-level DPT programs continue to establish best practice for telehealth education, current trends in academic curriculum seem to prepare students’ clinical reasoning readiness for clinical experiences. The PTSE could be used to identify outlier students requiring additional mentoring during traditional and telehealth clinical experiences