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Detective Inspector Sean Corrigan takes on a case that seems to be a straightforward domestic homicide. He soon finds several other linked victims, however, and that leads him to the most dangerous serial killer he's ever encountered.

Background and ObjectivesUltrasound-guided regional anesthesia facilitates an approach to sensitive targets such as nerve clusters without contact or inadvertent puncture. We compared accuracy of needle placement with a novel passive magnetic ultrasound needle guidance technology (NGT) versus conventional ultrasound (CU) with echogenic needles.MethodsSixteen anesthesiologists and 19 residents performed a series of 16 needle insertion tasks each, 8 using NGT (n = 280) and 8 using CU (n = 280), in high-fidelity porcine phantoms. Tasks were stratified based on aiming to contact (target-contact) or place in close proximity with (target-proximity) targets, needle gauge (no. 18/no. 22), and in-plane (IP) or out-of-plane (OOP) approach. Distance to the target, task completion by aim, number of passes, and number of tasks completed on the first pass were reported.ResultsNeedle guidance technology significantly improved distance, task completion, number of passes, and completion on the first pass compared with CU for both IP and OOP approaches (P ⩽ 0.001). Average NGT distance to target was lower by 57.1% overall (n = 560, 1.5 ± 2.4 vs 3.5 ± 3.7 mm), 38.5% IP (n = 140, 1.6 ± 2.6 vs 2.6 ± 2.8 mm), and 68.2% OOP (n = 140, 1.4 ± 2.2 vs 4.4 ± 4.3 mm) (all P ⩽ 0.01). Subgroup analyses revealed accuracy gains were largest among target-proximity tasks performed by residents and for OOP approaches. Needle guidance technology improved first-pass completion from 214 (76.4%) per 280 to 249 (88.9%) per 280, a significant improvement of 16.4% (P = 0.001).ConclusionsPassive magnetic NGT can improve accuracy of needle procedures, particularly among OOP procedures requiring close approach to sensitive targets, such as nerve blocks in anesthesiology practice.

Finite element modeling (FEM) is used to predict complex phenomena like part deformation and the formation of residual strain resulting from cyclical heating. A gap exists in current literature using FEM to investigate the effect of printing strategies on strain and deformation in Ti-6Al-4V NIST bridges built by laser powder bed fusion (L-PBF). This study compares thermomechanical finite element models incorporating three scan strategies commonly used in literature: meander, stripe, and checkerboard, for the fabrication of Ti-6Al-4V NIST bridges using L-PBF. FEM of each scan strategy uses four mechanical material models: elastic perfectly plastic, Johnson-Cook, eigenstrain, and Hill 1948. The models’ mechanical responses are compared to experimental data. The objective of this work is to compare the predicted strain states, part deflections, and runtimes for each scan strategy and mechanical material model. Ultimately, this work aims to use FEM to predict challenges from the as-printed stress state of the L-PBF part.

TRAFFIC lights were recently installed lights on the New England Highway between Arthur and Alexandra streets at Rutherford in a bid to improve pedestrian safety.

TRAFFIC lights were recently installed lights on the New England Highway between Arthur and Alexandra streets at Rutherford in a bid to improve pedestrian safety.

Postoperative pain is a common consequence of spinal operations related to tissue trauma, manipulation of neural structures, and lengthy procedures. While opioid medications are frequently used for pain control, their side effects, such as nausea, vomiting, tolerance, and dependency, have led to increased interest in multimodal analgesic techniques. This review aims to examine effectiveness and safety of liposomal bupivacaine (LB, EXPAREL) in erector spinae plane blocks (ESPB) for postoperative pain management following spinal surgery. Regional anesthesia methods, particularly ESPB, have gained attention in reducing opioid requirements. The ESPB technique involves ultrasound-guided administration of local anesthetics beneath the erector spinae muscles and above the transverse process, effectively inhibiting ventral and dorsal rami of spinal nerves. Despite its popularity for versatility and safety, the analgesic effects of ESPB with conventional local anesthetics are relatively short-lived. LB, which releases the drug gradually as liposomes are degraded, offers extended pain control. Early clinical applications in pediatric scoliosis surgery and transforaminal lumbar interbody fusion have revealed that ESPB with LB adequately outperformed the control analgesic in terms of opioid consumption (30% and 50% decrease in mentioned studies) and length of stay (24%, 32%, and 12% decrease in mentioned studies). These findings indicate that LB in ESPB represents a promising strategy for enhanced perioperative pain management in spinal procedures. However, further research with larger and more diverse patient populations and outcome measurements are needed to overcome the current limitations of current research. In the present investigation, current evidence regarding the implementation of LB in ESPB during spine surgeries is summarized, focusing on safety and potential to improve patient outcomes by prolonging analgesia, minimizing opioid use, and promoting faster recovery.

School canteens are a recommended setting to influence adolescent nutrition due to their scope to improve student food choices. Online lunch ordering systems (\"online canteens\") are increasingly used and represent attractive infrastructure to implement choice architecture interventions that nudge users toward healthier food choices. A recent cluster randomized controlled trial demonstrated the short-term effectiveness (2-month follow-up) of a choice architecture intervention to increase the healthiness of foods purchased by high school students from online canteens. However, there is little evidence regarding the long-term effectiveness of choice architecture interventions targeting adolescent food purchases, particularly those delivered online. This study aimed to determine the long-term effectiveness of a multi-strategy choice architecture intervention embedded within online canteen infrastructure in high schools at a 15-month follow-up. A cluster randomized controlled trial was undertaken with 1331 students (from 9 high schools) in New South Wales, Australia. Schools were randomized to receive the automated choice architecture intervention (including menu labeling, positioning, feedback, and prompting strategies) or the control (standard online ordering). The foods purchased were classified according to the New South Wales Healthy Canteen strategy as either \"everyday,\" \"occasional,\" or \"should not be sold.\" Primary outcomes were the average proportion of \"everyday,\" \"occasional,\" and \"should not be sold\" items purchased per student. Secondary outcomes were the mean energy, saturated fat, sugar, and sodium content of purchases. Outcomes were assessed using routine data collected by the online canteen. From baseline to 15-month follow-up, on average, students in the intervention group ordered significantly more \"everyday\" items (+11.5%, 95% CI 7.3% to 15.6%; P<.001), and significantly fewer \"occasional\" (-5.4%, 95% CI -9.4% to -1.5%; P=.007) and \"should not be sold\" items (-6%, 95% CI -9.1% to -2.9%; P<.001), relative to controls. There were no between-group differences over time in the mean energy, saturated fat, sugar, or sodium content of lunch orders. Given their longer-term effectiveness, choice architecture interventions delivered via online canteens may represent a promising option for policy makers to support healthy eating among high school students. Australian Clinical Trials ACTRN12620001338954, https://anzctr.org.au/Trial/Registration/TrialReview.aspx?id=380546 ; Open Science Framework osf.io/h8zfr, https://osf.io/h8zfr/.

Digital health interventions (DHIs) are effective in improving poor nutrition, physical inactivity, overweight and obesity. There is evidence suggesting that the impact of DHIs may be enhanced by improving user engagement. However, little is known about the overall effectiveness of strategies on engagement with DHIs. This study aims to assess the overall effectiveness of strategies to improve engagement with DHIs targeting nutrition, physical activity, and overweight or obesity and explore associations between strategies and engagement outcomes. The secondary aim was to explore the impact of these strategies on health risk outcomes. The MEDLINE, Embase, PsycINFO, CINAHL, CENTRAL, Scopus, and Academic Source Complete databases were searched up to July 24, 2023. Eligible studies were randomized controlled trials that evaluated strategies to improve engagement with DHIs and reported on outcomes related to DHI engagement (use or user experience). Strategies were classified according to behavior change techniques (BCTs) and design features (eg, supplementary emails). Multiple-variable meta-analyses of the primary outcomes (usage and user experience) were undertaken to assess the overall effectiveness of strategies. Meta-regressions were conducted to assess associations between strategies and use and user experience outcomes. Synthesis of secondary outcomes followed the \"Synthesis Without Meta-Analysis\" guidelines. The methodological quality and evidence was assessed using the Cochrane risk-of-bias tool, and the Grading of Recommendations Assessment, Development, and Evaluation tool respectively. Overall, 54 studies (across 62 publications) were included. Pooled analysis found very low-certainty evidence of a small-to-moderate positive effect of the use of strategies to improve DHI use (standardized mean difference=0.33, 95% CI 0.20-0.46; P<.001) and very low-certainty evidence of a small-to-moderate positive effect on user experience (standardized mean difference=0.29, 95% CI 0.07-0.52; P=.01). A significant positive association was found between the BCTs social support (effect size [ES]=0.40, 95% CI 0.14-0.66; P<.001) and shaping knowledge (ES=0.39, 95% CI 0.03-0.74; P=.03) and DHI use. A significant positive association was found among the BCTs social support (ES=0.70, 95% CI 0.18-1.22; P=.01), repetition and substitution (ES=0.29, 95% CI 0.05-0.53; P=.03), and natural consequences (ES=0.29, 95% CI 0.05-0.53; P=.02); the design features email (ES=0.29, 95% CI 0.05-0.53; P=.02) and SMS text messages (ES=0.34, 95% CI 0.11-0.57; P=.01); and DHI user experience. For secondary outcomes, 47% (7/15) of nutrition-related, 73% (24/33) of physical activity-related, and 41% (14/34) of overweight- and obesity-related outcomes reported an improvement in health outcomes. Although findings suggest that the use of strategies may improve engagement with DHIs targeting such health outcomes, the true effect is unknown because of the low quality of evidence. Future research exploring whether specific forms of social support, repetition and substitution, natural consequences, emails, and SMS text messages have a greater impact on DHI engagement is warranted. PROSPERO CRD42018077333; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=77333.

Background High school canteens are an ideal setting for public health nutrition intervention, and choice architecture strategies that facilitate the purchase of healthier foods and beverages from school canteens are recommended by the World Health Organization. The rapid uptake of online lunch ordering within school canteens provides a unique opportunity to implement choice architecture strategies that support healthier food choices with high fidelity. Despite this, no trial has tested the efficacy of choice architecture strategies within an online lunch ordering system on improving the nutritional quality of high school student lunch purchases. The objective of this study was to assess the impact of embedding choice architecture strategies into an online lunch ordering system on the nutritional quality of the school canteen lunch purchases of high school students (aged 12–19 years). Methods A cluster randomized controlled trial was conducted with nine high schools in one Australian state. Schools were randomized to receive either a 2-month choice architecture intervention (involving menu labelling, prompts, item positioning, and feedback), or usual online ordering. Nutrient quality of online canteen lunch purchases was assessed using routine data collected by the online ordering system. Primary outcomes were the proportion of ‘Everyday’, ‘Occasional’, and ‘Should not be sold’ items purchased, categorized using the state healthy canteen policy. Secondary outcomes were the mean energy, saturated fat, sugar, and sodium content of purchases and the mean weekly revenue from online lunch orders. Linear mixed models were analyzed to assess outcomes. Results Analysis of the student cohort (Intervention: 4 schools, 656 students; Control : 5 schools, 675 students) showed significant between group differences over time for the intervention group for the mean percentage of online lunch items per student that were ‘Everyday’ (+ 5.5%; P  < 0.001) and ‘Should not be sold’ (− 4.4%; P  < 0.001). There were no between group differences over time in the mean percentage of online lunch items that were ‘Occasional’; the average energy, saturated fat, sugar, or sodium content of lunch orders. There was also no difference in mean weekly revenue from high school student online lunch orders ( P  = 0.23). Conclusions These findings suggest that a low intensity, choice architecture intervention embedded within an online ordering system can increase the purchase of healthier food items for high school students in one Australian state without any adverse impact on canteen revenue. Trial registration This trial was prospectively registered on Open Science Framework on 23rd October 2020 as osf.io/h8zfr.