Whose Journey to Self-Reliance? Participation in the Journey to Self-Reliance and the Land-Grant Imaginary

Land-grant university and civil society development actors have long partnered with local and global communities to eliminate food insecurity. Despite the common aim of addressing food insecurity as a wicked problem, their approaches and designs differ in scope and scale. Similarly, levels of local stakeholder participation in agricultural development historically vary reflecting the complexity in relinquishing hierarchal decision-making power. In this pilot study, we investigated how participation is framed within the United States Agency for International Development’s (USAID) policy, “The Journey to Self-Reliance”. Subsequently, we sought to understand the implications of this framing on land-grant universities’ agricultural development aims in addressing global food security. We drew upon Fairclough’s Critical Discourse Analysis and Pretty’s typology of participation in sustainable agriculture to analyze the inaugural speech launching the policy framework by the former USAID administrator. We also held two focus groups with development actors at two land-grant universities. Findings indicate local participation of governments, citizens, and civil society to be important. However, governmental participation may be contingent on accountability to both USAID and the private sector indicating an increased commitment to neoliberal ideology. The focus group themes identify self-reliance and its journey as prescriptive and at times, neocolonial, raising questions about participatory possibilities. The final theme illustrates land-grant praxis from participants as they advance visions for centering local partner needs through more equitable decision-making and resource sharing. We conclude with considerations for future research to more deeply understand the implications of “The Journey to Self-Reliance” policy through a CDA lens

A Brief Review of Chronic Exercise Intervention to Prevent Autonomic Nervous System Changes During the Aging Process

The aging process is associated with alterations in the cardiovascular and autonomic nervous systems. Autonomic changes related to aging involve parasympathetic and sympathetic alterations leading to a higher incidence of cardiovascular disease morbidity and mortality. Several studies have suggested that physical exercise is effective in preventing deleterious changes. Chronic exercise in geriatrics seems to be associated with improvement in the cardiovascular system and seems to promote a healthy lifestyle. In this review, we address the major effects of aging on the autonomic nervous system in the context of cardiovascular control. We examine the use of chronic exercise to prevent cardiovascular changes during the aging process

Comparing acoustic and radar deterrence methods as mitigation measures to reduce human-bat impacts and conservation conflicts

Where humans and wildlife co-exist, mitigation is often needed to alleviate potential conflicts and impacts. Deterrence methods can be used to reduce impacts of human structures or activities on wildlife, or to resolve conservation conflicts in areas where animals may be regarded as a nuisance or pose a health hazard. Here we test two methods (acoustic and radar) that have shown potential for deterring bats away from areas where they forage and/or roost. Using both infrared video and acoustic methods for counting bat passes, we show that ultrasonic speakers were effective as bat deterrents at foraging sites, but radar was not. Ultrasonic deterrents decreased overall bat activity (filmed on infrared cameras) by ~80% when deployed alone and in combination with radar. However, radar alone had no effect on bat activity when video or acoustic data were analysed using generalised linear mixed effect models. Feeding buzzes of all species were reduced by 79% and 69% in the ultrasound only treatment when compared to the control and radar treatments, but only the ultrasound treatment was significant in post-hoc tests. Species responded differently to the ultrasound treatments and we recorded a deterrent effect on both Pipistrellus pipistrellus (~40-80% reduction in activity) and P. pygmaeus (~30-60% reduction), but not on Myotis species. However, only the ultrasound and radar treatment was significant (when compared to control and radar) in post-hoc tests for P. pipistrellus. Deterrent treatment was marginally non-significant for P. pygmaeus, but the ultrasound only treatment was significant when compared to radar in post-hoc tests. We therefore suggest that acoustic, but not radar methods are explored further as deterrents for bats. The use of acoustic deterrence should always be assessed on a case-by-case basis, with a focus on bat conservation

Properties of Intra-group Stars and Galaxies in Galaxy Groups: "Normal" versus "Fossil" Groups

Cosmological LCDM simulations of 12 M_vir~10^14 Msun galaxy groups have been performed, invoking star formation, chemical evolution with non-instantaneous recycling, metallicity dependent radiative cooling, strong star-burst driven galactic super-winds and effects of a meta-galactic UV field. At z=0, intra-group light (IGL) fractions are found to be 12-45%. Low values refer to groups with only a small difference between the R-band magnitudes of the first and second ranked group galaxy, large are typical of "fossil" groups (FGs). The IG stars in the 4 FGs are 0.3-0.5 Gyr older than in the 8 nonFGs. For the IGL, B-R=~1.4, in good agreement with observations. For FGs/nonFGs the iron abundance of the IG stars is slightly sub-solar in the central parts (r~100 kpc) decreasing to about 40% solar at about 0.5 r_vir The IG stars are alpha-element enhanced with [O/Fe] increasing with r, and an overall [O/Fe]~0.45, indicating predominant SNII enrichment. The velocity distributions of the IG stars and group galaxies are, at r>~30 kpc, significantly more radially anisotropic for FGs than for nonFGs. So a characteristic of FG formation, apart from formation time (D'Onghia et al.), may be the "initial" velocity distribution of the group galaxies. For FGs one can dynamically infer the (dark matter dominated) mass distribution of the groups all the way to r_vir, from the kinematics of the IG stars or group galaxies. For the nonFGs this method overestimates the group mass at r>~200 kpc, by up to a factor of two at r_vir. This is interpreted as FGs being, in general, more relaxed than nonFGs. Finally, FGs of the above M_vir should host ~500 planetary nebulae at projected distances between 100 and 1000 kpc from the first ranked galaxy. All results appear consistent with the FG formation scenario of D'Onghia et al.Comment: 12 pages, 15 figures, Accepted for MNRAS, Printing in colour recommende

“Flipped” Clinical Rotations: A Novel Approach

Background: Near the beginning of the COVID-19 pandemic in the United States, medical students were pulled out of all in-person patient care activities. This resulted in massive disruption to the required clinical rotations (clerkships), necessitating creative curricular solutions to ensure continued education for medical students. Approach: In response to the lockout, our school adopted a “flipped” clinical rotations model that assigned students to remote learning activities prior to in-person patient care activities. This approach allowed students to continue their clinical education virtually with a focus on knowledge for practice while awaiting return to the shortened in-person portions of their rotation. In planning the modified clinical curriculum, educational leaders adhered to several guiding principles including ensuring flexible remote curricular components that would engage students in active learning, designating that no rotation would be completely virtual, and completing virtual educational activities and standardised exams before students returned to in-person experiences. Evaluation: End of rotation evaluations and standardised exam scores were analysed to determine the effectiveness of this model. Despite the disruption associated with the pandemic and the rapid implementation of the “flipped” rotations, students continued to rate the overall experiences as highly as traditional clinical rotations. Students also performed similarly on standardised exams when compared to cohorts from other classes at the same experience level. Implications: While borne out of necessity during a pandemic, the lessons learned from our implementation of a “flipped” rotations model can be applied to address problems of capacity and clinical preparedness in the clinical setting

Linking e-health records, patient-reported symptoms and environmental exposure data to characterise and model COPD exacerbations: protocol for the COPE study.

INTRODUCTION: Relationships between exacerbations of chronic obstructive pulmonary disease (COPD) and environmental factors such as temperature, humidity and air pollution are not well characterised, due in part to oversimplification in the assignment of exposure estimates to individuals and populations. New developments in miniature environmental sensors mean that patients can now carry a personal air quality monitor for long periods of time as they go about their daily lives. This creates the potential for capturing a direct link between individual activities, environmental exposures and the health of patients with COPD. Direct associations then have the potential to be scaled up to population levels and tested using advanced human exposure models linked to electronic health records. METHODS AND ANALYSIS: This study has 5 stages: (1) development and deployment of personal air monitors; (2) recruitment and monitoring of a cohort of 160 patients with COPD for up to 6 months with recruitment of participants through the Clinical Practice Research Datalink (CPRD); (3) statistical associations between personal exposure with COPD-related health outcomes; (4) validation of a time-activity exposure model and (5) development of a COPD prediction model for London. ETHICS AND DISSEMINATION: The Research Ethics Committee for Camden and Islington has provided ethical approval for the conduct of the study. Approval has also been granted by National Health Service (NHS) Research and Development and the Independent Scientific Advisory Committee. The results of the study will be disseminated through appropriate conference presentations and peer-reviewed journals.This work is funded by the Medical Research Council (MR/L019744/1). MRC-PHE funding has been obtained for a pilot study to collect blood and sputum samples on a subset of 20 participants. Enrolment will take place at The Royal Brompton and Harefield (RBH) and Guy's and St Thomas' (GSTT) NHS Foundation Trusts. Support will be provided by the Respiratory Clinical Research Facility at RBH and the Lane Fox Unit at GSTT. The project is a portfolio adopted by the National Institute for Health Research (NIHR) UK Clinical Research Network (CRN). Additional support was provided by the NIHR Biomedical Research Centre based at GSTT and King's College London.This is the final version of the article. It first appeared from the BMJ Publishing Group via http://dx.doi.org/10.1136/bmjopen-2016-01133

In-vivo evaluation of biocompatibility of biodegradable Fe-Mn materials

The authors evaluated the biodegradability and biocompatibility of an alloy of iron and manganese in a bone model in vivo. Fe-Mn biodegradable materials with various porosities were first fabricated and characterized for microstructure, corrosion and mechanical properties. Resorption of a bioabsorbable wire of chemical formula Fe30Mn and no induced porosity was evaluated in-vivo. The Fe-Mn alloy behavior in-vivo was compared to that of a traditional permanent 316L stainless steel (SS) wire after bilateral transcondylar femoral implantation in 12 rats. Evaluation of biodegradation was performed over a period of 6 months using serial radiography, post-mortem histology and macroscopic implant surface analysis. Increased bone ingrowth was noted at the iron-manganese wire-bone interface, which indicates increased osseointegration of the implant. Please click Additional Files below to see the full abstract

Quantifying uncertainty in thermophysical properties of walls by means of Bayesian inversion

We introduce a computational framework to statistically infer thermophysical properties of any given wall from in-situ measurements of air temperature and surface heat fluxes. The proposed framework uses these measurements, within a Bayesian calibration approach, to sequentially infer input parameters of a one-dimensional heat diffusion model that describes the thermal performance of the wall. These inputs include spatially-variable functions that characterise the thermal conductivity and the volumetric heat capacity of the wall. We encode our computational framework in an algorithm that sequentially updates our probabilistic knowledge of the thermophysical properties as new measurements become available, and thus enables an on-the-fly uncertainty quantification of these properties. In addition, the proposed algorithm enables us to investigate the effect of the discretisation of the underlying heat diffusion model on the accuracy of estimates of thermophysical properties and the corresponding predictive distributions of heat flux. By means of virtual/synthetic and real experiments we show the capabilities of the proposed approach to (i) characterise heterogenous thermophysical properties associated with, for example, unknown cavities and insulators; (ii) obtain rapid and accurate uncertainty estimates of effective thermal properties (e.g. thermal transmittance); and (iii) accurately compute an statistical description of the thermal performance of the wall which is, in turn, crucial in evaluating possible retrofit measures