Cyclic m-cycle systems of complete graphs minus a 1-factor

Diamond open accessIn this paper, we provide necessary and sufficient conditions for the existence of a cyclic m-cycle system of Kn −I when m and n are even and m | n.Ye

A Comparison of 4-H and Other Youth Development Organizations in the Development of Life Skills

The article briefly describes the results of a study on the influence of 4-H and other youth development programs on the development of 36 life skills including critical thinking, goal setting, communication, decision-making and community service. Respondents (n=223) were high achieving 4-H alumni who participated it the Oklahoma 4-H Program between the years 1969 and 1998. Results suggest that while respondents credited 4-H with influencing the development of the majority of the identified life skills, other youth organizations were also identified as having some influence on the development in different life skills. Recommendations for 4-H programming are offered

Chronic pain self-management support with pain science education and exercise (COMMENCE): Study protocol for a randomized controlled trial

© 2015 Miller et al. Background: Previous research suggests that self-management programs for people with chronic pain improve knowledge and self-efficacy but result in negligible effects on function. This study will investigate the effectiveness self-management support with pain science education and exercise on improving function for people with chronic pain in comparison to a wait-list control. A secondary objective is to determine which variables help to predict response to the intervention. Methods/Design: This study will be an unblinded, randomized controlled trial with 110 participants comparing a 6-week program that includes self-management support, pain science education and exercise to a wait-list control. The primary outcome will be function measured by the Short Musculoskeletal Function Assessment - Dysfunction Index. Secondary outcomes will include pain intensity measured by a numeric pain rating scale, pain interference measured by the eight-item PROMIS pain interference item-bank, how much patients are bothered by functional problems measured by the Short Musculoskeletal Function Assessment - Bother Index, catastrophic thinking measured by the Pain Catastrophizing Scale, fear of movement/re-injury measured by the 11-item Tampa Scale of Kinesiophobia, sense of perceived injustice measured by the Injustice Experience Questionnaire, self-efficacy measured by the Pain Self-Efficacy Questionnaire, pain sensitivity measured by pressure pain threshold and cold sensitivity testing, fatigue measured by a numeric fatigue rating scale, pain neurophysiology knowledge measured by the Neurophysiology of Pain Questionnaire, healthcare utilization measured by number of visits to a healthcare provider, and work status. Assessments will be completed at baseline, 7 and 18 weeks. After the 18-week assessment, the groups will crossover; however, we anticipate carry-over effects with the treatment. Therefore, data from after the crossover will be used to estimate within-group changes and to determine predictors of response that are not for direct between-group comparisons. Mixed effects modelling will be used to determine between-group differences for all primary and secondary outcomes. A series of multiple regression models will be used to determine predictors of treatment response. Discussion: This study has the potential to inform future self-management programming through evaluation of a self-management program that aims to improve function as the primary outcome. Trial registration: ClinicalTrials.gov NCT02422459 , registered on 13 April 2015

Comparative absorption of curcumin formulations

BACKGROUND: The potential health benefits of curcumin are limited by its poor solubility, low absorption from the gut, rapid metabolism and rapid systemic elimination. The purpose of this study was the comparative measurement of the increases in levels of curcuminoids (curcumin, demethoxycurcumin, bisdemethoxycurcumin) and the metabolite tetrahydrocurcumin after oral administration of three different curcumin formulations in comparison to unformulated standard. METHODS: The relative absorption of a curcumin phytosome formulation (CP), a formulation with volatile oils of turmeric rhizome (CTR) and a formulation of curcumin with a combination of hydrophilic carrier, cellulosic derivatives and natural antioxidants (CHC) in comparison to a standardized curcumin mixture (CS) was investigated in a randomized, double-blind, crossover human study in healthy volunteers. Samples were analyzed by HPLC-MS/MS. RESULTS: Total curcuminoids appearance in the blood was 1.3-fold higher for CTR and 7.9-fold higher for CP in comparison to unformulated CS. CHC showed a 45.9-fold higher absorption over CS and significantly improved absorption over CP (5.8-fold) and CTR (34.9-fold, all p < 0.001). CONCLUSION: A formulation of curcumin with a combination of hydrophilic carrier, cellulosic derivatives and natural antioxidants significantly increases curcuminoid appearance in the blood in comparison to unformulated standard curcumin CS, CTR and CP

Practice Report: Student Health Ambassadors at Residential Campuses Contribute to Safer Campus Living and Learning During the COVID-19 Pandemic

In summer 2020 six residential institutions of higher education (IHE) and the Mountain Area Health Education Center (MAHEC) in Western North Carolina chose a collaborative approach to mitigating COVID-19 infection rates on campus. This approach shares the practices and successes of this concerted effort with a focus on a large public, medium public, and small private IHE. The campuses promoted a healthy and safe culture through a rigorous and transformational learning experience and focused on engaging Student Health Ambassadors (SHAs) in applying the Diffusion of Innovations model to peer-topeer gain-framed messaging for health. Three institutions’ programs are presented and cross-case analysis is used to illuminate transferable promising practices. Promising transferable practices across the schools include: selecting the right students, strong institutional support, the three Ps (positive, proactive and prevention-focused), building leadership skills, and peer-led campus culture change. Transferable insights from the practices at three campuses focused on the role and impact of peer-to-peer student health ambassadors on campus to mitigate the spread of COVID-19

Organizational Supports and Youth Life Skill Development: Adult Volunteers as Mentors, Managers and “Mediators”

A statewide community club evaluation (youth self-report), empirically testing a logic model of factors influencing youth life skill development is described. Results supported that the way adult volunteers manage and mentor youth and explained how 4-H program features (e.g., youth sense of belonging, safety, and support) influence life skill development. Youth engagement in activities was also linked with life skills and organizational supports were linked with youth engagement in the model. Future directions based on the findings to be discussed include: (1) examining volunteer competencies to build upon in training; (2) use of SEM to understand the larger picture of youth programs; and (3) what the results tell us about: (a) creating quality club environments for youth; (b) providing youth with caring adult support systems; and (c) developing life and career skills through subject-matter topics

Draft Genome Sequence of Antarctic Methanogen Enriched from Dry Valley Permafrost

A genomic reconstruction belonging to the genus Methanosarcina was assembled from metagenomic data from a methane-producing enrichment of Antarctic permafrost. This is the first methanogen genome reported from permafrost of the Dry Valleys and can help shed light on future climate-affected methane dynamics

An Aotearoa New Zealand survey of the impact and diagnostic delay for endometriosis and chronic pelvic pain

Chronic pelvic pain (CPP) causes important negative effects on quality of life. Endometriosis is the most common cause of CPP in females, and diagnostic delay is over six years internationally. Data remain scarce for CPP impact or diagnostic delay in Aotearoa New Zealand. This study used an online survey to explore the impact of CPP on various life domains for those aged over 18. Additionally, for those with an endometriosis diagnosis, diagnostic delay and factors affecting this over time were explored. There were 800 respondent (620 with self-reported endometriosis). CPP symptoms, irrespective of final diagnosis, started prior to age 20 and negatively impacted multiple life domains including employment, education, and relationships. Mean diagnostic delay for those with endometriosis was 8.7 years, including 2.9 years between symptom onset and first presentation and 5.8 years between first presentation and diagnosis. Five doctors on average were seen prior to diagnosis. However, there was a reduction in the interval between first presentation and diagnosis over time, from 8.4 years for those presenting before 2005, to two years for those presenting after 2012. While diagnostic delay is decreasing, CPP, irrespective of aetiology, continues to have a significant negative impact on the lives of those affected

Adolescent Perceptions of Animation Violence as an Indication of Aggressive Attitudes and Behaviors

This reported study was designed to examine the beliefs and perceptions of adolescents on whether or not viewing violence on television contributes to an increase in adolescents’ abilities to learn aggressive attitudes and behaviors. It also explored the effects humor and satire used in the animated television series The Simpsons has on adolescents’ abilities to learn aggressive attitudes and behaviors. Finally, it examined to what extent the violence portrayed in The Simpsons was believed to be realistic and justified by adolescents viewing the show. Results indicate that adolescents were not affected by the violence they observed in The Simpsons animation: Further, they did not feel that it was acceptable for their favorite characters to use violence to solve problems. Youth did not have reactions to viewing the series that were violent, nor did they report becoming aggressive in response to viewing the violence on the The Simpsons. While the majority of the youth also reported that they did not use violence to solve a problem, 3.3% reported that they did. Overall, the study concluded that adolescents’ exposure to violent content by viewing it in animation in The Simpsons did not affect adolescents’ perceptions of their abilities to learn aggressive attitudes and behaviors. Youth did not perceive that the violence portrayed was realistic

Using a Robust and Sensitive GFP-Based cGMP Sensor for Real-Time Imaging in Intact Caenorhabditis elegans.

cGMP plays a role in sensory signaling and plasticity by regulating ion channels, phosphodiesterases, and kinases. Studies that primarily used genetic and biochemical tools suggest that cGMP is spatiotemporally regulated in multiple sensory modalities. FRET- and GFP-based cGMP sensors were developed to visualize cGMP in primary cell culture and Caenorhabditis elegans to corroborate these findings. While a FRET-based sensor has been used in an intact animal to visualize cGMP, the requirement of a multiple emission system limits its ability to be used on its own as well as with other fluorophores. Here, we demonstrate that a C. elegans codon-optimized version of the cpEGFP-based cGMP sensor FlincG3 can be used to visualize rapidly changing cGMP levels in living, behaving C. elegans We coexpressed FlincG3 with the blue-light-activated guanylyl cyclases BeCyclOp and bPGC in body wall muscles, and found that the rate of change in FlincG3 fluorescence correlated with the rate of cGMP production by each cyclase. Furthermore, we show that FlincG3 responds to cultivation temperature, NaCl concentration changes, and sodium dodecyl sulfate in the sensory neurons AFD, ASEL/R, and PHB, respectively. Intriguingly, FlincG3 fluorescence in ASEL and ASER decreased in response to a NaCl concentration upstep and downstep, respectively, which is opposite in sign to the coexpressed calcium sensor jRGECO1a and previously published calcium recordings. These results illustrate that FlincG3 can be used to report rapidly changing cGMP levels in an intact animal, and that the reporter can potentially reveal unexpected spatiotemporal landscapes of cGMP in response to stimuli