Aberrant migration and surgical removal of a heartworm (Dirofilaria immitis) from the femoral artery of a cat.

A cat was evaluated for an acute-onset of right pelvic limb paresis. Thoracic radiographs revealed normal cardiac size and tortuous pulmonary arteries. Abdominal ultrasound identified a heartworm (HW) extending from the caudal abdominal aorta into the right external iliac artery and right femoral artery. The cat was HW-antigen positive. Echocardiography revealed a HW within the right branch of the main pulmonary artery and evidence of pulmonary hypertension. An agitated-saline contrast echocardiogram revealed a small right to left intracardiac shunt at the level of the atria. Surgical removal of the HW was performed with no substantial postoperative complications. There was return of blood flow and improved motor function to the limb. The cat remains mildly paretic on the affected limb with no other clinical signs

Parkinson’s Disease Support Groups in Rural America: Barriers, Resources, and Opportunities

People with Parkinson’s disease who live in rural communities may lack information and support regarding their condition, compared to those in urban or suburban areas. For the study described herein, the researchers sought to gain a deeper understanding of support group experiences of rural Parkinson’s disease stakeholders through merging an interpretive phenomenological design with Community-based Participatory Research (CBPR). Using this merged approach, we collected qualitative data from five focus groups to gain a community perspective. The qualitative data was analyzed thematically, first, and then further explored for an overall essence. The theme, Support Group Benefits: Opportunities for Communication expounded upon the importance of support groups to Parkinson’s disease stakeholders. Barriers to Support Group Participation represented how the disease and the rural living conditions inhibited support group participation. Strategies to Improve Support Group Access demonstrated the different ways that the stakeholders had tried to overcome barriers and strengthen support groups. Notably, some participants discussed ways that support groups could increase their accessibility to more individuals with Parkinson’s living rurally so that they endured as a future resource. The themes and accessibility recommendations that emerged led the researchers to interpret the overall essence of this work as, experiencing support group benefits despite barriers, leaving a legacy

A Written Instrument for Assessing Students’ Units Coordination Structures

Units coordination refers to students’ abilities to create units and maintain their relationships with other units that they contain or constitute. In recent research, units coordination has arisen as a key construct that mediates opportunities for student learning across several domains of mathematics, including fractions knowledge and algebraic reasoning. To date, assessments of students’ stages of units coordinating ability have relied upon clinical interviews or teaching experiments whose time-intensive nature precludes opportunities for conducting large-scale studies. We introduce a written instrument that teachers and researchers can use with large populations of students. We report on the reliability and validity of assessments based on the instrument

Integrating the PCC4U Modules into a New Undergraduate Nursing Curriculum: The UNDA –Sydney Experience

Introduction (from Power Point Presentation) Why integrate palliative care concepts into an undergraduate nursing course? - Do generalist nurses need this specialist knowledge? - Why not a single, discreet palliative care unit? - When should these concepts be introduced

Secondary data analysis of social care records to examine the provision of mental health support for young people in care

Background: Young people in care are much more likely to experience mental health difficulties than the general population, yet little is known about the provision of mental health support for this group in the United Kingdom. Methods: Using routinely collected social care data, we explored the provision of mental health support for 112 young people in care in the UK. We identified young people experiencing elevated internalising or externalising difficulties in their first year in care (based on strengths and difficulties questionnaire scores) and extracted data on mental health referrals and provision. We generated descriptive statistics relating to provision of mental health support and used regressions to examine predictors of mental health provision, and associations between support and mental health outcomes one and 2 years later. Results: Eighty-one percent of the children (n = 79) were referred to mental health services in their first year of being in care. Referrals were usually for emotional or conduct problems. Those with higher externalising symptoms were more likely to be referred than those with higher internalising symptoms (OR = 1.2, (95% confidence interval (CI): 1.01, 1.38)). Females were more likely to access support than males (OR = 3.82 (95% CI: 1.2, 13.3)). Sixty-eight percent of children (n = 66) accessed mental health services in their first year of being in care. Of those who accessed services, support ended prematurely for 29 (44%) of them, often due to placement instability or disengagement. Accessing support in the first year of care was not associated with changes in mental health 1 year (OR: 2.14 (95% CI: 0.62,7.29)), or 2 years after entering care (OR: 0.72–8.57, (95% CI: 0.72, 8.57)), although methodological limitations are noted. Conclusions: Mental health difficulties for children in care are recognised quickly, but mental health support may be difficult to access, with issues evident in retention and engagement

Photon Statistics of Filtered Resonance Fluorescence

Spectral filtering of resonance fluorescence is widely employed to improve single photon purity and indistinguishability by removing unwanted backgrounds. For filter bandwidths approaching the emitter linewidth, complex behaviour is predicted due to preferential transmission of components with differing photon statistics. We probe this regime using a Purcell-enhanced quantum dot in both weak and strong excitation limits, finding excellent agreement with an extended sensor theory model. By changing only the filter width, the photon statistics can be transformed between antibunched, bunched, or Poissonian. Our results verify that strong antibunching and a sub-natural linewidth cannot simultaneously be observed, providing new insight into the nature of coherent scattering.Comment: Main manuscript 7 pages with 4 figures, supplementary material of 4 page

Basal tolerance but not plasticity gives invasive springtails the advantage in an assemblage setting

As global climates change, alien species are anticipated to have a growing advantage relative to their indigenous counterparts, mediated through consistent trait differences between the groups. These insights have largely been developed based on interspecific comparisons using multiple species examined from different locations. Whether such consistent physiological trait differences are present within assemblages is not well understood, especially for animals. Yet, it is at the assemblage level that interactions play out. Here, we examine whether physiological trait differences observed at the interspecific level are also applicable to assemblages. We focus on the Collembola, an important component of the soil fauna characterized by invasions globally, and five traits related to fitness: critical thermal maximum, minimum and range, desiccation resistance and egg development rate. We test the predictions that the alien component of a local assemblage has greater basal physiological tolerances or higher rates, and more pronounced phenotypic plasticity than the indigenous component. Basal critical thermal maximum, thermal tolerance range, desiccation resistance, optimum temperature for egg development, the rate of development at that optimum and the upper temperature limiting egg hatching success are all significantly higher, on average, for the alien than the indigenous components of the assemblage. Outcomes for critical thermal minimum are variable. No significant differences in phenotypic plasticity exist between the alien and indigenous components of the assemblage. These results are consistent with previous interspecific studies investigating basal thermal tolerance limits and development rates and their phenotypic plasticity, in arthropods, but are inconsistent with results from previous work on desiccation resistance. Thus, for the Collembola, the anticipated advantage of alien over indigenous species under warming and drying is likely to be manifest in local assemblages, globally

Short-term pre-operative high-intensity interval training does not improve fitness of colorectal cancer patients

Background: Preoperative cardiorespiratory fitness (CRF) in colorectal cancer patients has been shown to affect postoperative outcomes. The aim of this study was to test the feasibility of high-intensity interval training (HIT) for improving fitness in preoperative colorectal cancer (CRC) patients within the 31-day cancer waiting time targets imposed in the UK. Methods: Eighteen CRC patients (13 males, mean age: 67 years (range 52-77years) participated in supervised HIT on cycle ergometers 3 or 4 times each week prior to surgery. Exercise intensity during 5x1-minute HIT intervals (interspersed with 90-seconds recovery) was 100-120% maximum wattage achieved at a baseline cardiopulmonary exercise test (CPET). CPET before and after HIT was used to assess CRF. Results: Patients completed a mean of 8 HIT sessions (range 6-14) over 19 days (SD 7). There was no significant increase in VO2 peak (23.9±7.0 vs. 24.2±7.8 ml/kg/min (mean±SD), p=0.58) or anaerobic threshold (AT: 14.0±3.4 vs. 14.5±4.5 ml/kg/min, p=0.50) after HIT. There was a significant reduction in resting systolic blood pressure (152±19 vs. 142±19 mmHg, p=0.0005) and heart rate at submaximal intensities after HIT.Conclusions: A pragmatic HIT exercise program did not improve the preoperative fitness of CRC patients within the 31-day window available in the UK to meet cancer surgical waiting time targets