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This work aims to provide the hardware (HW) design of the optoelectronics interfaces for a visible-light communication (VLC) system that can be employed for several use cases. Potential applications include the transmission of ultra-high-definition (UHD) streaming video through existing reading lamps installed in passenger vans. In this use case, visible light is employed for the downlink, while infrared light is used for the uplink channel, acting as a remote controller. Two primary components -a Light Fidelity (LiFi) router and a USB dongle-were designed and implemented. The 'LiFi Router', handling the downlink channel, comprises components such as a visible Light-Emitting Diode (LED) and an infrared receiver. Operating at a supply voltage of 12 V and consuming current at 920 mA, it is compatible with standard voltage buses found in transport vehicles. The 'USB dongle', responsible for the uplink, incorporates an infrared LED and a receiver optimized for visible light. The USB dongle works at a supply voltage of 5 V and shows a current consumption of 1.12 A, making it well suited for direct connection to a universal serial bus (USB) port. The bandwidth achieved for the downlink is 11.66 MHz, while the uplink's bandwidth is 12.27 MHz. A system competent at streaming UHD video with the feature of being single-input multiple-output (SIMO) was successfully implemented via the custom hardware design of the optical transceivers and optoelectronics interfaces. To ensure the system's correct performance at a distance of 110 cm, the minimum signal-to-noise ratio (SNRmin) for both optical links was maintained at 10.74 dB. We conducted a proof-of-concept test of the VLC system in a passenger van and verified its optimal operation, effectively illustrating its performance in a real operating environment. Exemplifying potential implementations possible with the hardware system designed in this work, a bit rate of 15.2 Mbps was reached with On-Off Keying (OOK), and 11.25 Mbps was obtained with Quadrature Phase Shift Keying (QPSK) using Orthogonal Frequency-Division Multiplexing (OFDM) obtaining a bit-error rate (BER) of 3.3259 × 10-5 in a passenger van at a distance of 72.5 cm between the LiFi router and the USB dongle. As a final addition, a solar panel was installed on the passenger van's roof to power the user's laptop and the USB dongle via a power bank battery. It took 13.4 h to charge the battery, yielding a battery life of 22.3 h. This characteristic renders the user's side of the system entirely self-powered.

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Background: Procedural simulators can facilitate teaching and improve learning vasectomy surgical techniques. The objectives of this scoping review were to identify available vasectomy simulators (scrotal models), and to assess their characteristics and potential suitability for optimal transfer of surgical skills of most recommended techniques in clinical practice. Methods: We performed searches up to December 2023 using PubMed and Google search engines to identify existing vasectomy simulators. Articles and Web pages reporting vasectomy simulators were also examined using a snowball strategy. In addition, we asked members of the Vasectomy Network, an international Google discussion group, if they knew any other simulators. Two members of the research team performed the initial evaluations of the physical and functional characteristics of retrieved simulators. All team members made consensus on final evaluations. Results: We retrieved 10 relevant scrotal models through PubMed (n=2), Google (n=4), and the Vasectomy Network (n=4). Three were commercially available simulators produced by Gaumard® in the USA and seven were homemade models. All had limited visual and haptic realism of internal and external structures. Most, however, were suitable for simulating some basic skills of the no-scalpel technique to deliver the vas deferens. Fascial interposition could not be simulated with any model. Commercially available models had no advantage over homemade models. Conclusions: Most vasectomy simulators currently available allow learning some basic surgical skills of the procedure but have limitations for optimal learning of the recommended techniques and skill transfer in clinical practice. There appears to be a need to develop and evaluate new simulators with enhance visual and haptic characteristics for teaching and learning vasectomy techniques.

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Handwashing is a vital skill for maintaining health and hygiene. For individuals with intellectual and developmental disabilities (IDD), such as autism spectrum disorder, evidence-based strategies, such as prompting and task analysis, may be effective in teaching these skills. Due to the shortage of experts who teach individuals with IDD skills such as handwashing, staff working with children need a means of ensuring these instructional strategies are implemented with fidelity. This study examined the effects of a tablet-based application that used artificial intelligence (GAINS®) on four behavior technicians' implementation of least-to-most prompting, total task chaining, and time delay during an acquisition of handwashing program with young children with autism. All four technicians increased fidelity immediately upon using GAINS and all four technicians reached mastery criteria within the shortest number of sessions possible. One child participant met mastery criteria, two showed some gains, and one demonstrated a high degree of variability across sessions. Limitations of the least-to-most prompting procedure, user design, considerations and directions for future research and practice are discussed.

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The rapid development of technology has led to the emergence of innovative teaching approaches, such as high-fidelity patient simulation (HFPS). HFPSs have been shown to significantly enhance students' decision-making and intellectual skills. This study aimed to investigate how students learn from the pre-briefing to observation period of the facilitation of the HFPS based on the original quasi-experimental studies. This study analyzed the narratives from 92 students in the intervention group about their learning during the pre-briefing and observation of facilitation. The results indicated that the students learned more independently, received better support and resources for learning, were provided with more appropriate and safe care for the simulated case, and developed higher-level intellectual skills, such as self-directed learning, critical thinking, and clinical reasoning. Importantly, the structured guidelines provided roles and responsibilities and guiding questions or aspects for observation that directed the students to learn more actively and effectively while performing their roles in the HFPS. The structured guidelines serve as a roadmap to instruct students on learning during pre-briefing and applying what they have learned during the facilitation of the HFPS. This roadmap includes the learning journey from novice to competence in knowledge and skills and also from knowing to application. Therefore, this study's results have contributed important knowledge about well-structured HFPS guidelines for all stages of the HFPS, addressing the need for adequate guidance and learning support during the pre-briefing and observation of facilitation. The elements identified during the pre-briefing and observation of facilitation are crucial for directing students to learn and significantly enhance their understanding and application of knowledge and skills, ultimately promoting the development of higher-level intellectual skills, professionalism, and engagement. Nurse educators can incorporate these elements into HFPS training in curricula to enhance students' involvement and optimize the HFPS as an effective teaching tool with structured guidelines providing guidance and support throughout various stages of HFPS training.

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BACKGROUND: How ambulance clinicians (ACs) handle a mass casualty incident (MCI) is essential for the suffered, but the training and learning for the ACs are sparse and they don't have the possibility to learn without realistic simulation training. In addition, it is unclear what type of dilemmas ACs process in their clinical reasoning during an MCI. With virtual reality (VR) simulation, the ACs clinical reasoning can be explored in a systematic way. Therefore, the objective was to explore ambulance clinicians' clinical reasoning when simulating a mass casualty incident using virtual reality. METHODS: This study was conducted as an explorative interview study design using chart- stimulated recall technique for data collection. A qualitative content analysis was done, using the clinical reasoning cycle as a deductive matrix. A high-fidelity VR simulation with MCI scenarios was used and participants eligible for inclusion were 11 senior ACs. RESULTS/CONCLUSION: All phases of the clinical reasoning cycle were found to be reflected upon by the participants during the interviews, however with a varying richness of analytic reflectivity. Non-analytic reasoning predominated when work tasks followed specific clinical guidelines, but analytical reasoning appeared when the guidelines were unclear or non-existent. Using VR simulation led to training and reflection on action in a safe and systematic way and increased self-awareness amongst the ACs regarding their preparedness for MCIs. This study increases knowledge both regarding ACs clinical reasoning in MCIs, and insights regarding the use of VR for simulation training.

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BACKGROUND: Resuscitative thoracotomies are a time-sensitive emergency surgical procedure with an immediate risk of mortality. We hypothesize that a high-fidelity whole-body donor simulation model, referred to as a Knowledge Donor (KD), with mechanical lung ventilation and expired human blood perfusion could increase learner confidence in performing this critical procedure. METHODS: General surgery residents and faculty were invited to participate in KD training. Surveys were collected to track participation and confidence. RESULTS: Simulated resuscitative thoracotomies were performed involving PGY levels I-IV. Mean confidence was highest for residents with both KD and Live Patient experience (5.6 â€‹± â€‹1.7), followed by Live Patient only (4.3 â€‹± â€‹2.5), and KD only (2.6 â€‹± â€‹1.3). The mean confidence rating for residents with neither training opportunity was 1.4 â€‹± â€‹1.0. CONCLUSIONS: The KD platform is a hyper-realistic training modality that closely replicates live surgery. This platform allows residents to practice complex surgical procedures in a safe environment, without risking patient safety. This pilot program yielded early results in improving resident procedural confidence for high-risk surgical procedures, specifically resuscitative thoracotomies.

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Structural variations (SVs) pervade plant genomes and contribute substantially to the phenotypic diversity. However, most SVs were ineffectively assayed due to their complex nature and the limitations of early genomic technologies. By applying the PacBio high-fidelity (HiFi) sequencing for wheat genomes, we performed a comprehensive evaluation of mainstream long-read aligners and SV callers in SV detection. The results indicated that the accuracy of deletion discovery is markedly influenced by callers, accounting for 87.73% of the variance, whereas both aligners (38.25%) and callers (49.32%) contributed substantially to the accuracy variance for insertions. Among the aligners, Winnowmap2 and NGMLR excelled in detecting deletions and insertions, respectively. For SV callers, SVIM achieved the best performance. We demonstrated that combining the aligners and callers mentioned above is optimal for SV detection. Furthermore, we evaluated the effect of sequencing depth on the accuracy of SV detection, revealing that low-coverage HiFi sequencing is sufficiently robust for high-quality SV discovery. This study thoroughly evaluated SV discovery approaches and established optimal workflows for investigating structural variations using low-coverage HiFi sequencing in the wheat genome, which will advance SV discovery and decipher the biological functions of SVs in wheat and many other plants.

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BACKGROUND: Suicide is the 12th leading cause of death in the United States. Health care provider training is a top research priority identified by the National Action Alliance for Suicide Prevention; however, evidence-based approaches that target skill building are resource intensive and difficult to implement. Novel computer technologies harnessing artificial intelligence are now available, which hold promise for increasing the feasibility of providing trainees opportunities across a range of continuing education contexts to engage in skills practice with constructive feedback on performance. OBJECTIVE: This pilot study aims to evaluate the feasibility and acceptability of an eLearning training in suicide safety planning among nurses serving patients admitted to a US level 1 trauma center for acute or intensive care. The training included a didactic portion with demonstration, practice of microcounseling skills with a web-based virtual patient (Client Bot Emily), role-play with a patient actor, and automated coding and feedback on general counseling skills based on the role-play via a web-based platform (Lyssn Advisor). Secondarily, we examined learning outcomes of knowledge, confidence, and skills in suicide safety planning descriptively. METHODS: Acute and intensive care nurses were recruited between November 1, 2021, and May 31, 2022, to participate in a formative evaluation using pretraining, posttraining, and 6-month follow-up surveys, as well as observation of the nurses' performance in delivering suicide safety planning via standardized patient role-plays over 6 months and rated using the Safety Plan Intervention Rating Scale. Nurses completed the System Usability Scale after interacting with Client Bot Emily and reviewing general counseling scores based on their role-play via Lyssn Advisor. RESULTS: A total of 18 nurses participated in the study; the majority identified as female (n=17, 94%) and White (n=13, 72%). Of the 17 nurses who started the training, 82% (n=14) completed it. On average, the System Usability Scale score for Client Bot Emily was 70.3 (SD 19.7) and for Lyssn Advisor was 65.4 (SD 16.3). On average, nurses endorsed a good bit of knowledge (mean 3.1, SD 0.5) and confidence (mean 2.9, SD 0.5) after the training. After completing the training, none of the nurses scored above the expert-derived cutoff for proficiency on the Safety Plan Intervention Rating Scale (≥14); however, on average, nurses were above the cutoffs for general counseling skills per Lyssn Advisor (empathy: mean 4.1, SD 0.6; collaboration: mean 3.6, SD 0.7). CONCLUSIONS: Findings suggest the completion of the training activities and use of novel technologies within this context are feasible. Technologic modifications may enhance the training acceptability and utility, such as increasing the virtual patient conversational abilities and adding automated coding capability for specific suicide safety planning skills. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-10.2196/33695.

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Abstract Objective: To evaluate the effect of high-fidelity simulation of pediatric emergencies compared to case-based discussion on the development of self-confidence, theoretical knowledge, clinical reasoning, communication, attitude, and leadership in undergraduate medical students. Methods: 33 medical students were allocated to two teaching methods: high-fidelity simulation (HFS, n = 18) or case-based discussion (CBD, n = 15). Self-confidence and knowledge tests were applied before and after the interventions and the effect of HFS on both outcomes was estimated with mixed-effect models. An Objective Structured Clinical Examination activity was conducted after the interventions, while two independent raters used specific simulation checklists to assess clinical reasoning, communication, attitude, and leadership. The effect of HFS on these outcomes was estimated with linear and logistic regressions. The effect size was estimated with the Hedge'sg. Results: Both groups had an increase in self-confidence (HFS 59.1 × 93.6, p < 0.001; CDB 50.5 × 88.2, p < 0.001) and knowledge scores over time (HFS 45.1 × 63.2, p = 0.001; CDB 43.5 × 56.7, p-value < 0.01), but no difference was observed between groups (group*time effect in the mixed effect models adjusted for the student ranking) for both tests (p = 0.6565 and p = 0.3331, respectively). The simulation checklist scores of the HFS group were higher than those of the CBD group, with large effect sizes in all domains (Hedges g 1.15 to 2.20). Conclusion: HFS performed better than CBD in developing clinical reasoning, communication, attitude, and leadership in undergraduate medical students in pediatric emergency care, but no significant difference was observed in self-confidence and theoretical knowledge.

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The rules of the genetic code are implemented by the unique features that define the amino acid identity of each transfer RNA (tRNA). These features, known as "identity elements," mark tRNAs for recognition by aminoacyl-tRNA synthetases (ARSs), the enzymes responsible for ligating amino acids to tRNAs. While tRNA identity elements enable stringent substrate selectivity of ARSs, these enzymes are prone to errors during amino acid selection, leading to the synthesis of incorrect aminoacyl-tRNAs that jeopardize the fidelity of protein synthesis. Many error-prone ARSs have evolved specialized domains that hydrolyze incorrectly synthesized aminoacyl-tRNAs. These domains, known as editing domains, also exist as free-standing enzymes and, together with ARSs, safeguard protein synthesis fidelity. Here, we discuss how the same identity elements that define tRNA aminoacylation play an integral role in aminoacyl-tRNA editing, synergistically ensuring the correct translation of genetic information into proteins. Moreover, we review the distinct strategies of tRNA selection used by editing enzymes and ARSs to avoid undesired hydrolysis of correctly aminoacylated tRNAs.

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This research paper presents a high-fidelity, open-source digital-twin of the Pepper robot developed within the framework of the Robot Operating System 2 (ROS 2) for better simulation realism in complex tasks of machine learning. We developed a dedicated, custom ROS 2 package with modern simulation tools, such as Gazebo Sim, MoveIt 2, Rviz2, that brings complete, realistic environments in line with the exact behaviors and interactions of robots in reality. Better accuracy of the physical movement of Pepper robot's simulation was shown on the digital twin, validated by the Choregraphe software and real robot performance, to be a strong platform of collaboration and further research by the community. This development greatly pushes the envelope of human-like humanoid robotics further by offering a scaled, flexible, and plausible training environment conducive to integrating complex algorithms of robot learning and interaction capabilities.

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PURPOSE: We describe the development of an online fidelity questionnaire for early intervention in psychosis (EIP) services, to be used in population-level research, and that can be completed using self-reports from EIP staff. METHODS: A review of key literature sources on the components of EIP services was used to identify those components eligible for inclusion in the questionnaire. A modified Delphi approach, using experts in EIP services, was used to select the most important components to include in the questionnaire. To pilot test the questionnaire, two EIP staff members completed one fidelity questionnaire each, and a third questionnaire was completed by an external rater. Responses from the three sources were compared and used to revise the fidelity questionnaire. RESULTS: Twenty-two experts from England and Canada responded to two Delphi rounds, identifying the top 25 most important EIP service components. Some evidence-based components were not rated as highly as some non-evidence-based components. Pilot testing showed that the EIP staff rated fidelity higher than the external rater. Several questions were removed and/or revised based on the pilot study findings. CONCLUSIONS: Fidelity instruments are limited by the available evidence and the personal experiences of experts used to develop them. As such, fidelity instruments and EIP services should continually be updated to reflect new knowledge. The online fidelity questionnaire was a simple and efficient way to collect data. Future evaluations of the fidelity questionnaire need to ensure that externally collected fidelity data are comprehensive and accurate.

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PURPOSE: Fast, easy, and cost-effective methods are needed for fidelity assessment, quality improvement initiatives, and population-based studies in Early Intervention for Psychosis (EIP) services. Having an online questionnaire assessing the fidelity of EIP services, completed by staff self-reports, and having evidence of reliability and validity, could fill that gap. We assess the reliability and validity of the Early Intervention for Psychosis Services Fidelity Questionnaire (EIPS-FQ), developed in Part I of this set of papers. METHODS: A convenience sample of 10 EIP teams in England was used. Two staff members completed online questionnaires assessing recent and past fidelity. An external rater completed the same questionnaire for the two time periods, using a random sample of patient medical records, program documentation, and interviews with staff. The intra-class correlation coefficient (ICC) was calculated to assess inter-rater reliability. Validity was assessed using Bland-Altman plots, absolute mean differences, and the ICC. RESULTS: The fidelity score measuring recent fidelity ranged from 54.2 to 82.7, out of a possible 100. The ICC assessing reliability of the fidelity score was 0.40 (95% CI: 0.0-0.81). The ICCs for the fidelity sub-category scores ranged from 0 to 0.76. Two sub-categories, comprehensive assessments and family involvement and intervention, had low ICCs, regardless of period examined. CONCLUSIONS: This first attempt at validating the EIPS-FQ has demonstrated that the reliability of the EIPS-FQ is moderate/low, and therefore requires modification prior to use. The next iteration of the fidelity questionnaire will clarify or remove items which had very low fidelity and add evidence-based components not identified in the Delphi exercise.

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Savoring impacts parents' emotions and parent-child relationship quality. Using data from a randomized controlled trial (N = 164 mothers of 18-27-month-olds, 37 interveners) conducted with a community sample in the United States, this study examined predictors of fidelity and treatment outcomes across two savoring preventative interventions (relational savoring and personal savoring). Treatment outcome indicators were selected from a battery administered immediately post-intervention (maternal closeness to child) and at a 3-month follow-up (maternal sensitivity, reflective functioning). We examined whether intervener education level (bachelor's degree/no bachelor's degree) predicted fidelity (Research Question 1), whether intervener education level predicted treatment outcomes (Research Question 2), and whether fidelity predicted treatment outcomes (Research Question 3). In many cases, intervener education background was not related to fidelity or treatment outcome; however, interveners without bachelor's degrees showed greater adherence to the protocols on some scales (higher positivity, higher secure base, higher calm matching) and sessions with these interveners were associated with greater increases in maternal sensitivity. Regardless of the intervener education level, redirecting attention to the positive and calmly matching participants' tone were associated with higher maternal reflective functioning, and higher secure base scores were associated with greater closeness. Findings have implications for the training and implementation of prevention programs for parents.

El sentido de disfrute tiene impacto en las emociones de los progenitores y en la calidad de la relación progenitor­niño. Este estudio examina los factores de predicción de los resultados de fidelidad y tratamiento a través de dos intervenciones preventivas del disfrute (disfrute en la relación y disfrute personal), y para ello se usaron datos de un ensayo controlado al azar (N = 164 madres de niños entre 18 y 27 meses de edad, 37 interventores) llevado a cabo con un grupo muestra comunitario en Estados Unidos. Se seleccionaron los indicadores de resultados del tratamiento a partir de una serie administrada inmediatamente después de la intervención (cercanía materna al niño) y a los 3 meses del seguimiento (sensibilidad materna, funcionamiento con reflexión). Examinamos si el nivel de educación del interventor (con licenciatura universitaria o sin ella) predijo la fidelidad (Pregunta 1 de Investigación), si el nivel de educación del interventor predijo los resultados de tratamiento (Pregunta 2 de Investigación), y si la fidelidad predijo los resultados de tratamiento (Pregunta 3 de Investigación). En muchos casos, el trasfondo educativo del interventor no se relacionó con la fidelidad o el resultado del tratamiento; sin embargo, los interventores sin licenciatura universitaria mostraron mayor adherencia a los protocolos en algunas escalas (nivel más alto de positividad, base de seguridad más alta, más alta calma en el aparejamiento) y las sesiones con estos interventores se asociaron con mayores aumentos en la sensibilidad materna. Sin tomar en cuenta el nivel de educación del interventor, el reenfocar la atención hacia lo positivo y el tono calmado de las participantes aparejadas se asociaron con un más alto nivel de funcionamiento con reflexión materno y los más altos puntajes de una base segura se asociaron con una mayor cercanía. Los resultados tienen implicaciones para el entrenamiento y la implementación de programas de prevención para progenitores.

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INTRODUCTION: Variability in implementation of enhanced recovery protocols (ERPs) often reduces the effects of an intervention on clinical outcomes. This study aimed to evaluate hospital-level implementation fidelity to a pediatric gastrointestinal surgery ERP by assessing site-specific implementation materials. METHODS: This document analysis study operationalized implementation fidelity as adherence to the creation of specified materials at each study site. During the 12-mo implementation phase within the stepped-wedge cluster randomized control trial, ENhanced Recovery In CHildren Undergoing Surgery, study sites were provided with materials (e.g., order sets), access to peer-counseling, and given key ERP elements spanning multiple phases of care. Sixteen of the 18 total study sites submitted implementation materials, including 14 anesthesia protocols, 11 order sets, and 16 sets of patient/family education materials. These materials were assessed and graded for fidelity using prespecified criteria. Hospital-level fidelity scores could range from 0 to a maximum score of 18, and were categorized as either high or low, based on whether the score was above or below/equal to the median. Descriptive statistics and Wilcoxon rank sum test were used for analysis. RESULTS: The overall hospital-level median fidelity score for inclusion of ERP elements in the implementation materials was 10.5. The median score was 12.8 at nine high-fidelity sites and was 5.6 at nine low-fidelity sites (P < 0.01). Higher adherence was noted for avoiding prolonged fasting (n = 16/18 hospitals; 89%) and preventing nausea and vomiting (n = 16/18 hospitals; 89%) in anesthesia protocols and/or order sets. Lower adherence was noted for incorporation of minimally invasive surgical techniques (n = 2/18 hospitals, 11%) and of preoperative optimization of medical comorbidities (n = 0/18 hospitals, 0%) in implementation materials. CONCLUSIONS: Despite substantial resources to promote ERP elements, there was wide variation in fidelity for incorporating ERPs into implementation materials among hospital sites. Development of high-fidelity implementation materials for complex ERPs for gastrointestinal surgery in children may require longer than 12 months. Additional implementation strategies, resources, and modification of implementation-focused materials may be needed.

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During the drug discovery and design process, the acid-base dissociation constant (pKa) of a molecule is critically emphasized due to its crucial role in influencing the ADMET (absorption, distribution, metabolism, excretion, and toxicity) properties and biological activity. However, the experimental determination of pKa values is often laborious and complex. Moreover, existing prediction methods exhibit limitations in both the quantity and quality of the training data, as well as in their capacity to handle the complex structural and physicochemical properties of compounds, consequently impeding accuracy and generalization. Therefore, developing a method that can quickly and accurately predict molecular pKa values will to some extent help the structural modification of molecules, and thus assist the development process of new drugs. In this study, we developed a cutting-edge pKa prediction model named GR-pKa (Graph Retention pKa), leveraging a message-passing neural network and employing a multi-fidelity learning strategy to accurately predict molecular pKa values. The GR-pKa model incorporates five quantum mechanical properties related to molecular thermodynamics and dynamics as key features to characterize molecules. Notably, we originally introduced the novel retention mechanism into the message-passing phase, which significantly improves the model's ability to capture and update molecular information. Our GR-pKa model outperforms several state-of-the-art models in predicting macro-pKa values, achieving impressive results with a low mean absolute error of 0.490 and root mean square error of 0.588, and a high R2 of 0.937 on the SAMPL7 dataset.

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OBJECTIVE: To assess the effects of an evidence-based family caregiver training program (implementation of Helping Invested Families Improve Veteran Experiences Study [iHI-FIVES]) in the Veterans Affairs healthcare system on Veteran days not at home and family caregiver well-being. DATA SOURCES AND STUDY SETTING: Participants included Veterans referred to home- and community-based services with an identified caregiver across 8 medical centers and confirmed family caregivers of eligible Veterans. STUDY DESIGN: In a stepped wedge cluster randomized trial, sites were randomized to a 6-month time interval for starting iHI-FIVES and received standardized implementation support. The primary outcome, number of Veteran "days not at home," and secondary outcomes, changes over 3 months in measures of caregiver well-being, were compared between pre- and post-iHI-FIVES intervals using generalized linear models including covariates. DATA COLLECTION/EXTRACTION METHODS: Patient data were extracted from the electronic health record. Caregiver data were collected from 2 telephone-based surveys. PRINCIPAL FINDINGS: Overall, n = 898 eligible Veterans were identified across pre-iHI-FIVES (n = 327) and post-iHI-FIVES intervals (n = 571). Just under one fifth (17%) of Veterans in post-iHI-FIVES intervals had a caregiver enroll in iHI-FIVES. Veteran and caregiver demographics in pre-iHI-FIVES intervals were similar to those in post-iHI-FIVES intervals. In adjusted models, the estimated rate of days not at home over 6-months was 42% lower (rate ratio = 0.58 [95% confidence interval: 0.31-1.09; p = 0.09]) post-iHI-FIVES compared with pre-iHI-FIVES. The estimated mean days not at home over a 6-month period was 13.0 days pre-iHI-FIVES and 7.5 post-iHI-FIVES. There were no differences between pre- and post-iHI-FIVES in change over 3 months in caregiver well-being measures. CONCLUSIONS: Reducing days not at home is consistent with effectiveness because more time at home increases quality of life. In this study, after adjusting for Veteran characteristics, we did not find evidence that implementation of a caregiver training program yielded a reduction in Veteran's days not at home.

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BACKGROUND: Approximately 15% of births worldwide result in life-threatening complications during pregnancy, delivery, or postpartum. Comprehensive Emergency Management of Obstetric and Newborn Care (CEmONC) is intended as one of the measures for maternal healthcare services to reduce the high burden with regard to childbirth complications. However, its state of implementation fidelity has not been well investigated. Therefore, this study aimed to evaluate the implementation fidelity of CEmONC services at University of Gondar Comprehensive Specialized Hospital, Ethiopia. METHOD: A case-study design with an embedded mixed method was employed. Adherence, quality of delivery, and participant responsiveness dimensions from Carroll's conceptual framework were used in this evaluation. Four hundred four exit interviews, 423 retrospective document reviews and 10 key informants were conducted. Moreover, a binary logistic regression model was fitted. The qualitative data were transcribed, translated, coded, and analysed using a thematic analysis approach. The overall implementation fidelity of the CEmONC was judged based on the pre-seated judgmental criteria. RESULTS: Overall the implementation fidelity of the CEmONC service was 75.5%. Quality of delivery, participant responsiveness and adherence were 72.7%, 76.6% and 77.2% respectively. Signal functions like parenteral antibiotics and removal of retained products were insufficiently performed against the recommended protocols which was also evidenced by the key informant interviews. Healthcare providers' respect for the clients was less. Age ≥ 35 years (AOR = 0.48, 95% CI: 0.24,0.98), educational status of college and above (AOR = 2.61, 95% CI: 1.46,4.66), being government employed (AOR = 1.85, 95% CI: 1.08,3.18), having ANC follow-up (AOR = 5.50, 95% CI: 1.83, 16.47) and grand multigravida (AOR = 2.17, 95% CI: 1.08, 4.38) were factors significantly associated with participant responsiveness towards the services. CONCLUSIONS: The overall implementation fidelity of the CEmONC services was implemented in good fidelity. Moreover, the quality of delivery was judged as implemented in fair fidelity. Parenteral antibiotics and removal of retained products were not found to be sufficiently performed. Respect for the clients was insufficiently delivered. Therefore, it is recommended that parenteral antibiotics drugs be adequately provided and training for healthcare providers regarding compassionate and respectful care shall be facilitated. Moreover, healthcare providers are strongly recommended to adhere to the recommended guidelines.

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BACKGROUND: An ethnozoological study of medicinal animals in the Kucha district, Gamo zone, Southern Ethiopia, was conducted to investigate and document the use of traditional medicinal animals and the associated indigenous knowledge. Tribal people still make abundant use of animals and their parts to manage diseases in humans and even livestock. METHOD: A cross sectional study design and purposively sampling techniques were used. Data were collected from 132 respondents based on semi structured questionnaires. Focus group discussions (FGD) and Key informant interviews (KII) were conducted; Fidelity level (FL), Relative frequency of citation (RFC) and Informants' consensus factor (ICF) were used to analyze species preference and importance. RESULTS: A total of 24 medicinal animals were identified with 13 species (54.2%) being mammals of which 5 species (20.8%) dominated. They were followed by arthropods, reptiles and fishes. Seven out of the total were domestic species (29%) and 17 (70%) were wild animals. The majority of these animals, i.e. 22 (91.7%), were used to treat human ailments; whereas 2 (8.3%) were used to treat livestock ailments. The ICF values varied from 0.8 to 1.The highest FL value (98%) was linked to the cow (cattle), the lowest (1.5%) to the scorpion. The RFC value (1.0) was highest for the cow and lowest (0.02) for the scorpion. Honey, milk, and butter were the most commonly used therapeutic animal products, but regarding direct uses, fresh/raw meat dominated. Out of ten ailment categories, headaches had the lowest ICF value (0.8). All others scored at least 0.9. CONCLUSIONS: In rural areas, sick people often do not only have limited access to modern medical facilities, they actually prefer traditional treatments considering them to be more reliable and effective. It is therefore important to focus on documenting, conserving, and safeguarding the indigenous knowledge so that strategies to manage the traditional wisdom can be implemented in the future. To achieve these goals, it is important to make sure that medicinal animal species are available in sufficient numbers and neither threatened by habitat changes or overexploitation.

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The removal of mis-incorporated nucleotides by proofreading activity ensures DNA replication fidelity. Whereas the ε-exonuclease DnaQ is a well-established proofreader in the model organism Escherichia coli, it has been shown that proofreading in a majority of bacteria relies on the polymerase and histidinol phosphatase (PHP) domain of replicative polymerase, despite the presence of a DnaQ homolog that is structurally and functionally distinct from E. coli DnaQ. However, the biological functions of this type of noncanonical DnaQ remain unclear. Here, we provide independent evidence that noncanonical DnaQ functions as an additional proofreader for mycobacteria. Using the mutation accumulation assay in combination with whole-genome sequencing, we showed that depletion of DnaQ in Mycolicibacterium smegmatis leads to an increased mutation rate, resulting in AT-biased mutagenesis and increased insertions/deletions in the homopolymer tract. Our results showed that mycobacterial DnaQ binds to the ß clamp and functions synergistically with the PHP domain proofreader to correct replication errors. Furthermore, the loss of dnaQ results in replication fork dysfunction, leading to attenuated growth and increased mutagenesis on subinhibitory fluoroquinolones potentially due to increased vulnerability to fork collapse. By analyzing the sequence polymorphism of dnaQ in clinical isolates of Mycobacterium tuberculosis (Mtb), we demonstrated that a naturally evolved DnaQ variant prevalent in Mtb lineage 4.3 may enable hypermutability and is associated with drug resistance. These results establish a coproofreading model and suggest a division of labor between DnaQ and PHP domain proofreader. This study also provides real-world evidence that a mutator-driven evolutionary pathway may exist during the adaptation of Mtb.

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