Development, validation and in-class evaluation of a sequence of clicker questions on Larmor precession of spin in quantum mechanics

Engaging students with well-designed clicker questions is one of the commonly used research-based instructional strategy in physics courses partly because it has a relatively low barrier to implementation. Moreover, validated robust sequences of clicker questions are likely to provide better scaffolding support and guidance to help students build a good knowledge structure of physics than an individual clicker question on a particular topic. Here we discuss the development, validation and in-class implementation of a clicker question sequence (CQS) for helping advanced undergraduate students learn about Larmor precession of spin, which takes advantage of the learning goals and inquiry-based guided learning sequences in a previously validated Quantum Interactive Learning Tutorial (QuILT). The in-class evaluation of the CQS using peer instruction is discussed by comparing upper-level undergraduate student performance after traditional lecture-based instruction and after engaging with the CQS.Comment: 2019 Physics Education Research Conference Proceedings, 202

Recognising faces but not traits: Accurate personality judgment from faces is unrelated to superior face memory

It is suggested that accurate personality judgments of faces are driven by a morphological ‘kernel of truth’ from face shape. We hypothesised that this relationship could lead to those with better face identification ability being better at personality judgments. We investigated the relationship between face memory, face matching, Big Five personality traits, and accuracy in recognising Big Five personality traits from 50 photographs of unknown faces. In our sample (n = 792) there was overall good (but varying) face memory and personality judgment accuracy. However, there was convincing evidence that these two skills do not correlate (all r < .06). We also replicate the known relationship between extraversion and face memory ability in the largest sample to date

Resume of Paul Marshman Carrick, 1969

Naval Postgraduate School Faculty Resum

Resume of Paul Marshman Carrick, 1969, Publications.

Naval Postgraduate School Faculty Resum

Resume of Paul Marshman Carrick, Undated

Naval Postgraduate School Faculty Resum

Early postoperative morbidity after chronic subdural hematoma: predictive usefulness of the physiological and operative severity score for enumeration of mortality and morbidity, American College of Surgeons National Surgical Quality Improvement Program, and American Society of Anesthesiologists grade in a prospective cohort

Background: Although chronic subdural hematoma (CSDH) is generally benign, long-term survival (LTS) after CSDH is poor in a significant subgroup. This dichotomy has been compared to fractured neck of femur. However, although early postoperative mortality (within 30 days of CSDH) is well recorded with CSDH and similar to fractured neck of femur (4%-8%), scant accurate data exist regarding early postoperative morbidity (POMB). POMB, which prolongs length of stay (LOS) after major nonneurosurgery, is associated with decreased LTS. One recent CSDH study suggested a POMB standard of 10% i.e., notably less than with fractured neck of femur (45%). Methods: POMB was recorded in a novel prospective single-center cohort after CSDH. The POSSUM(Physiological and Operative Severity Score for Enumeration of Mortality and Morbidity), American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) score, and American Society of Anesthesiologists (ASA) grade were assessed as tools for potentially predicting POMB. Receiver operating characteristic (ROC) curves were calculated. Results: Early postoperative mortality (within 30 days of CSDH) occurred in 3 of 114 patients (3%). Seventy-one POMB events occurred in 54 of 114 patients (47%), with 27 of 54 (50%) having a Clavien-Dindo grade ≥2. Most POMBwas neurologic (n= 47/71, 66%). Age (P= 0.01), Glasgow Coma Scale (GCS) score (P = 0.001), Markwalder grade (P= 0.01), hypertension (P = 0.047), and/or ≥1 preexistent comorbidity (P = 0.041) were predictive. LOS (P = 0.01) and discharge modified Rankin Scale score (P < 0.001) were significantly associated. Predicted and observed POMB with POSSUM were significantly disparate (????²= 15.23; P = 0.001): POSSUMarea under ROC (AUROC = 0.611) was also nondiscriminatory. ACS-NSQIP (????²= 18.51; P < 0.001; AUROC = 0.629) and ASA grades (P= 0.25) were also nonpredictive. Conclusions: POMB was frequently disabling, mostly neurologic, and as frequent and diverse as with fractured neck of femur. POMB was significantly correlated with LOS and discharge modified Rankin Scale score. Surprisingly, POSSUM, ACS-NSQIP, and ASA grades were not predictive and would not aid consent. Simple parameters (age, Glasgow Coma Scale, Markwalder grade, hypertension, and/or ≥1 other comorbidity) were instead predictive. Longitudinal follow-up will determine whether POMB affects LTS. CSDH, like fractured neck of femur, is distinct

Variations in provision of dental general anaesthetic for children in England

Introduction Dental general anaesthetic (DGA) remains one of the main modalities to deliver treatment to paediatric patients. The main central registry system which is used as a proxy measure of DGA provision is the Hospital Episode Statistics (HES) data on hospital admission of children for dental extractions. This database does not accurately reflect the number of DGAs as it omits non-hospital-based providers and the data includes treatment under sedation.Aims The aim is to describe the paediatric DGA service provision across England and determine type of provider (NHS Trusts or Community Dental Services [CDSs]), type of lists (extraction or comprehensive care) and the speciality planning the service.Methods Potential providers were identified using the provider-level analysis in HES database (for NHS trusts) and the NHS Business Services Authority and internet-based search engine (for CDS providers). All potential providers were contacted (n = 204) and provided with a pro forma to collect data.Results Response rate was 82% and 115 providers confirmed provision of paediatric DGA. These were mostly NHS trusts (72%). Not all providers appeared in the HES database (25%). Half of the providers provided separate lists for exodontia versus comprehensive care. Only 32% of the lists were planned by specialists in paediatric dentistry. All regions, apart from London, had some comprehensive care lists planned by non-paediatric dentists.Conclusion The results highlighted the inaccuracies in the HES, variation in service provision across England and the lack of paediatric speciality-led DGA services. Paediatric DGA needs to be better recorded and commissioned