Correction Procedure Research Articles

Pertanggungjawaban Pidana Terhadap Terapis Gigi dan Mulut Atas Dugaan Malpraktik Medik di Praktik Mandiri

Dental and oral health service can be provided by Dental Therapists who have practice license in independent practice. The professional attitude of dental and oral therapists is applied to avoid medical malpractice which is an action or practice that is wrong or deviates from the correct provision or procedures. The formulation of the problem in this research is what criminal liability is for dental and oral therapists who commit medical malpractice in independent practice. The aim of this research is to determine criminal liability is for Dental Therapists who commit medical malpractice in independent practice. The research method used is problem approach used is the applicable law approach and the conceptual approach. The result of the research found that in carrying out independent practice, Dental Therapists found of violation of obligation which lead to criminal act, so Dental Therapists must be held criminal responsible and criminal sanctions are regulated in article 359 and 360 of the Criminal Code explains that the dental and oral therapist made a mistake (negligence) causing patients to be seriously injured or die, is threatened with a maximum prison sentence of five years or a maximum prison sentence of one year. The criminal liability of dental and oral therapists for violating obligations or committing negligence in independent practice must of course be proven in accordance with criminal law theory.The conclusion of this research, that in conduting personal practice, Dental Therapists must meet the applicable requirements, and if there ia a violation that causes harm to the patients, they must be held and face criminal sanctions.

Biobank for craniosynostosis and faciocraniosynostosis, rare pediatric congenital craniofacial disorders: a study protocol.

Craniosynostosis (CRS) is a rare congenital cranial malformation in which 1 or more cranial or facial sutures are fused in utero or rapidly fused in early infancy. The cranial sutures separate the skull bone plates and enable rapid growth of the skull in the first 2years of life, in which growth is largely dictated by growth of the brain. CRS is a rare disease that occurs in 1 in 2100 to 1 in 2500 births and may be either nonsyndromic (also referred to as isolated) or syndromic. In syndromic CRS, other birth defects are present next to the CRS. The distinction between nonsyndromic and syndromic manifestations is made on the basis of dysmorphologic evaluation and genetic evaluation. Owing to advances in genetic diagnostics, nonsyndromic patients are increasingly recognized as syndromic patients. CRS treatment is almost entirely surgical and is sometimes paired with postoperative helmet therapy for maintenance. Corrective procedures are complex, long, and associated with the risk of numerous complications, including heavy blood loss and its sequelae. Although surgery may restore a normal appearance, even in nonsyndromic patients, patients may experience persistent deficits in intellectual ability and cognitive function. The European Commission (EC) has prioritized rare diseases in recent horizon European research programs; indeed, collections or even individual samples may be extremely valuable for research. Here, we present a study protocol in which the combined expertise of clinicians and researchers will be exploited to generate a biobank dedicated to CRS. The generation of the CRS biobank presented in this study will include the collection of different types of biological materials as well as advanced radiological images available to the scientific community. The activation of a CRS biobank will provide an opportunity to improve translational research on CRS and to share its benefits with the scientific community and patients and their families.

Proactively addressing the challenges and issues in presbyopia correction surgery

With the population aging, the increasing number of presbyopia patients and the growing demand for correction have become pressing visual challenges. In recent years, presbyopia correction surgery has been a clinical focus, with ongoing innovations in surgical mechanisms and methods, but significant issues remain unresolved. This article explores the advancements and challenges in various presbyopia correction procedures, identifies key future trends and directions, and aims to provide guidance for improving the safety, efficacy, practicality, and longevity of these procedures in line with natural aging processes.

Cholecystocolonic Fistula (CCF) Case Report

Introduction: Gallbladder disease is one of the most common conditions affecting the digestive tract. Autopsy reports have shown a prevalence of gallstones ranging from 11-36%, with cholecystitis being one of the most prevalent complications. Although cholecystoenteric fistulas are rare, with an incidence of 0.15-0.5% among patients undergoing cholecystectomy, they can present significant diagnostic and therapeutic challenges. The transverse colon is the second most common site for these fistulas after the duodenum. A high degree of suspicion is required to diagnose it preoperatively. Here, we present a noteworthy case of a 65-year-old male patient with a fistula between the gallbladder and transverse colon, complicated by severe adhesions and a large stone, underscoring the complexities associated with this condition. Case Presentation: The patient had a history of hypertension and gallbladder stones when he was admitted during the COVID-19 pandemic with acute cholecystitis. Two years later, he had an elective laparoscopic cholecystectomy and, during surgery, the surgical team noticed significant adhesions around the gallbladder. Further inspection during dissection of the gallbladder bed revealed a fistula between the transverse colon and the gallbladder, and a single large stone was identified. The patient’s surgical procedure was successful, and his postoperative recovery was uncomplicated. Conclusion: A fistula between the gallbladder and transverse colon is a rare complication of gallbladder disease, and the transverse colon is the second most common cholecystoenteric fistula after the duodenum. The presence of a fistula is usually a late sequence of chronic gallstone disease that requires appropriate diagnosis and correct treatment. In this case, the surgery was complicated by extensive adhesions around the gallbladder with an adjacent colon and a large stone with a fistula noted between the transverse colon and the gallbladder. However, through careful planning, correct surgical procedures, and skilled surgical expertise, the patient’s condition after surgery lacked complications. This case focuses on the importance of addressing all possible complications of gallbladder disease and adjusting surgical procedures accordingly.

Perioperative Benefits of a 3D Printed Spine Biomodel in the Setting of Congenital Scoliosis Surgery

The spine community is continuously adding to its armamentarium of intraoperative techniques for visualization and instrumentation of the spine. Recently, three-dimensional printed spine models were introduced for use in preoperative planning, surgical simulation, and intraoperative guidance. We present a 14-year old African male with congenital kyphoscoliosis, small stature, an obvious gibbus deformity and coronal imbalance, who underwent a three-staged posterior surgical correction procedure, during which a 3D-printed spine biomodel was utilized for better appreciation of his complex spinal deformity patho-anatomy. During the first stage of the procedure, he developed diminished lower extremity motor strength bilaterally and bowel/bladder control, but, following his third stage procedure and with focused rehabilitation efforts, he has regained full control of his bowel and bladder function, and is able to ambulate and perform activities of daily living independently, albeit still requiring intermittent walking support with a single forearm crutch due to residual left leg weakness. The 3D spine biomodel functioned successfully as a valuable tool and surrogate anatomic blueprint for the surgeons, enabling adequate appreciation of the complex bony anatomy which could not be easily resolved on the conventionally available imaging modalities, intraoperative navigation or robotic platform. Theoretically, up to $2900 USD in savings, translated from the mean estimated time saved per procedure with the use 3D-printed spine models has been proposed in some studies. Therefore, 3D-printed spine models have utility in complex spinal deformity correction surgery.

Neuraxial Analgesia for Scoliosis Correction: A Case Series in a Specialised Children's Centre.

Surgical correction of spinal deformities in children presents a challenge to the anaesthetist due to the extensive nature of the surgery, the co-morbidities of the patients and the constraints on aesthetic techniques of intraoperative neurophysiological monitoring of the spinal cord. Patients undergoing scoliosis surgery are considered to suffer severe pain, which may lead to a negative impact on patient psychology and physical well-being. By using effective postoperative pain regimens to enhance recovery after surgery, pain can be significantly reduced, leading to patient satisfaction, facilitating early mobilisation, promoting oral intake, lowering postoperative pain and shortening the length of hospital stay. Thus, the primary objectives of this study were to assess the postoperative pain management andfirst rescue analgesic medications, by using preservative-free morphine 50 mcg/kg and dexmedetomidine 4 mcg along with normal saline 0.5 ml kg caudally, as well as to look for thesecondary objectivesside effects, including respiratory depression, nausea, vomiting and pruritis, timing of postoperative ambulation and length of hospital stay. Methods: In this study, we retrospectively included children under 14 years of age and above three years who underwent scoliosis surgery under a caudal epidural-general anaesthesia using caudal morphine and the dexmedetomidine technique in the period from January to May 2023 at the National Guard Health Affairs Hospital (NGHA), Riyadh. We collected the data of seven cases using the electronic chart system of the Best Care database to extract the specific cases that meet the inclusion criteria for the study, which are idiopathic scoliosis patients, aged 3-14 years, and primary correction procedures. Results: The pain-free duration was between seven hours and 48 hours (about two days). There were four female cases (57.14%), and three cases were male (42.85%). The patients' American Society of Anesthesiologists (ASA) status were II to III. In all the cases, there was no documentation of any episodes of postoperative nausea and vomiting (PONV), respiratory distress or pruritus, except for one case where the patient had an episode of PONV. Conclusion: In this study, our aim was to present our experience with dexmedetomidine as an efficient medication when coadministered with morphine to be used in the operating room. We found a high level of reliability in prolonging analgesia time and delaying the usage of rescue medication. We encourage more studies on caudal dexmedetomidine for patients undergoing scoliosis surgery.

A multiblock (MIB) finite element method for accurate and efficient blood flow simulation

We present an efficient and accurate immersed boundary (IB) finite element (FE) method for internal flow problems with complex geometries (e.g. blood flow in the vascular system). In this study, we use a voxelized flow domain (discretized with hexahedral and tetrahedral elements) instead of a box domain, which is frequently used in IB methods. We highlight the applicability and efficiency of the proposed method in generating the flow domain mesh and removing unnecessary portions of the domain, compared to the standard IB methods that rely on a full Cartesian mesh. Our approach is attractive for internal flow problems that use IB methods. The proposed method accurately satisfies the boundary conditions on the immersed object using velocity and pressure correction procedures. The velocity correction applies implicitly such that the velocity on the immersed boundary (Lagrangian points) interpolated from the corrected velocity values computed on the mesh nodes (Eulerian nodes) accurately satisfies the prescribed velocity boundary conditions. The proposed method utilizes the well-established incremental pressure correction scheme (IPCS) FE solver, and the boundary condition-enforced IB (BCE-IB) method to numerically solve the transient, incompressible Navier-Stokes (NS) flow equations. We verify the accuracy of our numerical method using the analytical solution for the Poiseuille flow in a cylinder, and the available experimental data (laser Doppler velocimetry) for the flow in a three-dimensional 90° angle tube bend. We further examine the accuracy and applicability of the proposed method by considering flow within complex geometries, such as blood flow in aneurysmal vessels and the aorta, flow configurations that would otherwise be difficult to solve by most IB methods. Our method offers high accuracy, as demonstrated by the verification examples, and high applicability, as demonstrated through the solution of blood flow within complex geometry. The proposed method is efficient, since it is as fast as the traditional finite element method used to solve the Navier–Stokes flow equations, with a small overhead (not more than 5%) due to the numerical solution of a linear system formulated for the IB method.

Degrees of Freedom: Search Cost and Self-consistency

Model degrees of freedom ( df ) is a fundamental concept in statistics because it quantifies the flexibility of a fitting procedure and is indispensable in model selection. To investigate the gap between df and the number of independent variables in the fitting procedure, Tibshirani (2015) introduced the search degrees of freedom ( sdf ) concept to account for the search cost during model selection. However, this definition has two limitations: it does not consider fitting procedures in augmented spaces and does not use the same fitting procedure for sdf and df . We propose a modified search degrees of freedom ( msdf ) to directly account for the cost of searching in either original or augmented spaces. We check this definition for various fitting procedures, including classical linear regressions, spline methods, adaptive regressions (the best subset and the lasso), regression trees, and multivariate adaptive regression splines (MARS). In many scenarios when sdf is applicable, msdf reduces to sdf . However, for certain procedures like the lasso, msdf offers a fresh perspective on search costs. For some complex procedures like MARS, the df has been pre-determined during model fitting, but the df of the final fitted procedure might differ from the pre-determined one. To investigate this discrepancy, we introduce the concepts of nominal df and actual df , and define the property of self-consistency, which occurs when there is no gap between these two df ’s. We propose a correction procedure for MARS to align these two df ’s, demonstrating improved fitting performance through extensive simulations and two real data applications.

A comparison of the results of old-generation (MEL 60) and new-generation (SCHWIND AMARIS) refractive excimer laser treatments

AbstractPurposeThe present study compares the efficacy of refractive surgery using third-generation and sixth-generation laser vision correction procedures in terms of postoperative visual acuity. The goal of the authors was to determine whether advances in laser technology had improved patients' uncorrected visual acuity, as measured at six-month follow-ups.Materials/MethodsResults were reported from one of Europe's leading laser eye clinics, which has performed an outstandingly high number of treatments (over 100,000). The results of the clinic's first 10,000 treatments and most recent 10,000 treatments were evaluated.ResultsThe analysis was performed by treated dioptric range and age group. The raw six-month visual acuity results show a statistically significant improvement over the last 10,000 interventions. The treatments resulted in significant improvements in all groups compared to the previous technology. With the new devices, visual acuity increased to above 1.0 in young myopes. The best results were seen in patients between 18 and 45 years of age, in the dioptric range between −1.0 D and −6.0 D.ConclusionsIt can be concluded that advances in technology improved refractive outcomes in all patient groups. This conclusion has excellent reliability and predictability due to the particularly high number of cases.

A new corrective method for the Tanzer’s group IIB constricted ear: Helical expansion using V-Y advancement flap combined with concha cartilage graft

BackgroundThe complexity of the constricted ear's shape renders a uniform surgical method unattainable, thus posing an ongoing challenge in its correction. The Tanzer’s group IIB constricted ear is characterized by a prominent downward folding, an underdeveloped antihelix, and the absence of sacpha. The present study utilized a V-Y advancement flap combined with concha cartilage for the repair of Tanzer’s group IIB constricted ear. MethodFrom September 2016 to September 2022, a total of 16 patients diagnosed with type IIB ear constriction were enrolled in this retrospective study. The correction procedure for constricted ear involved the utilization of a V-Y advancement flap combined with concha cartilage graft. The auricle shape data of the patients, as well as their VAS satisfaction score and auricle aesthetic score, were examined both preoperatively and 12 months postoperatively. ResultThe mean duration of follow-up in this study was 18 months. The postoperative measurements of ear length, ear width, bilateral differences in ear length, and bilateral differences in ear width exhibited significant improvement compared to preoperative values. The mean preoperative AOS score was 1.12±0.34, while the mean postoperative AOS score increased to 3.81±0.40. The preoperative VAS satisfaction score was recorded as 2.31±0.70, while the postoperative VAS score significantly increased to 8.00±0.89. The follow-up period did not present any cases of flap necrosis, hematoma, infection, or wound dehiscence. ConclusionThe combination of V-Y advancement flap and concha cartilage transplantation for the correction of Tanzer’s group IIB constricted ear can achieve a natural and aesthetically pleasing auricle shape, resulting in high patient satisfaction.

Coronal deformity in ankylosing spondylitis with concomitant thoracolumbar kyphosis: patterns, manifestations and surgical strategies.

To evaluate different patterns of coronal deformity secondary to ankylosing spondylitis (AS), to propose relevant treatment strategies, and to assess efficacy of asymmetrical pedicle subtraction osteotomy (APSO). Coronal deformity was defined as coronal Cobb angle over 20º or coronal balance distance (CBD) more than 3cm. 65 consecutive AS patients with concomitant coronal and sagittal deformity who underwent PSO were included. The average follow-up time was 40.4 months. Radiographic evaluation included coronal Cobb angle and CBD. Furthermore, sagittal parameters were used to assess magnitude and maintenance of kyphosis correction. Based on curve characteristics, coronal deformity caused by AS included four different radiologic patterns: Pattern I: lumbar scoliosis; Pattern II: C-shaped thoracolumbar curve; Pattern III: trunk shift without major curve; Pattern IV: proximal thoracic scoliosis. APSO was performed for patients in Pattern I to III while conventional PSO was applied for patients in Pattern IV. Significant improvement in all the sagittal parameters were noted in 65 patients without obvious correction loss at the last follow-up. Besides, significant and sustained correction of coronal mal-alignment was identified in 59 APSO-treated patients. Rod fracture occurred in four cases and revision surgery was performed for one case. According to radiologic manifestations, coronal deformity caused by AS could be categorized into four patterns. APSO proved to be a feasible and effective procedure for correction of Pattern I to III patients. Coronal deformity pattern, apex location, sagittal profile of lumbar spine and preoperative hip function should be considered for osteotomy level selection in APSO.

The Influence of Different Solar System Planetary Ephemerides on Pulsar Timing

Pulsar timing offers a comprehensive avenue for exploring diverse topics in physics and astrophysics. High-precision solar system planetary ephemeris is crucial for pulsar timing as it provides the positions and velocities of solar system planets including the Earth. However, it is inevitable that inherent inconsistencies exist in these ephemerides. Differences between various ephemerides can significantly impact pulsar timing and parameter estimations. Currently, pulsar timing highly depends on the JPL DE ephemeris, for instance, the Pulsar Timing Array data analysis predominantly utilizes DE436. In this study, we examine inconsistencies across various ephemeris series, including JPL DE, EPM, and INPOP. Notably, discrepancies emerge particularly between the current ephemeris DE436 and the earliest released ephemeris DE200, as well as the most recent ephemerides, e.g., DE440, INPOP21A, and EPM2021. Further detailed analysis of the effects of ephemeris on geometric correction procedures for the conversion of measured topocentric times of arrival is presented in this study. Our researches reveal that variations in the Roemer delays across different ephemerides lead to distinct differences. The timing residuals and the fact that these discrepancies can be readily incorporated into the subsequent pulsar parameters, leading to inconsistent fitting estimates, suggest that the influence of errors in the ephemeris on the timing process might currently be underappreciated.

Major stoma complications in pediatric patients in a tertiary hospital in a low-middle-income country: a retrospective cohort study.

Intestinal stomas are one of the most common parts of pediatric surgical care,and complications arising from it have significant impact on overall patient outcomes. However, data on major complications in low-middle-income countries remain limited. This pilot retrospective cohort study aimed to investigate the prevalence, types, and management of major stoma complications in pediatric patients at a tertiary government hospital in the Philippines. Medical records of pediatric patients with major stoma complications classified as Clavien-Dindo III-V from June 2018 to June 2023 were reviewed. Patient-related factors (age, sex, diagnosis) and surgery-related factors (stoma type and location, surgeon expertise) were analyzed. Descriptive statistics characterized demographic profiles, while Chi-square and t tests analyzed categorical and continuous variables, respectively. Multivariable logistic regression evaluated independent associations with major stoma complications. Out of 1041 pediatric patients with stomas, 102 cases had major complications, representing a prevalence rate of 9.8%. Mortality directly attributed to stoma complications accounted for 1.3% of the total cases, or 14 deaths in 5years. Neonates comprised a significant portion, primarily diagnosed with congenital conditions like anorectal malformation and Hirschsprung's disease. Ileostomies exhibited a higher incidence of major complications compared to other stoma types. Stomal prolapse and adhesive bowel obstruction are the most common reported stoma complications requiring surgical intervention while stoma revision is the most frequent corrective procedure. The median time from stoma creation to presentation of major complication was 14months, with nearly half of the complications occurring within the first year. Only the presence of ileostomy had significant association with the development of major complications among the risk factors analyzed. This study provides useful insights into stoma complications in pediatric patients in a low-middle income country. Despite the lack of significant associations between the patient-related and surgeon-related factors, and major stoma complications, further investigation into other contributing factors is warranted. Improvements in data collection methods and prospective studies with larger sample sizes are recommended to enhance understanding and optimize care of major stoma complications. Addressing the challenges identified in this study could lead to a comprehensive and tailored approach to pediatric stoma care and their complications.

Chest tube management following two row vertebral body tethering for adolescent idiopathic scoliosis

Background The current gold standard of scoliosis correction procedures is still posterior spinal fusion, an extensively studied procedure. anterior vertebral body tethering is a newer surgical technique for the correction of scoliotic curves. Consequently, best practices have yet to be determined. Methods A single-institution, retrospective, review of all patients diagnosed with adolescent idiopathic scoliosis who underwent two row anterior vertebral body tethering between June 2020 and April 2022 was performed. Results Over the study period, 95 patients met inclusion: 79 females (83.2%) and 16 males (16.8%), age 14.4 ± 2.5 years, with a body mass index of 20.0 ± 2.9, and an average of 8.4 ± 2.1 levels treated. 28 (29.5%) procedures were for double curves and 67 (70.5%) for single curves. After tethering, a chest tube was positioned in each corrected side. A total of 123 chest tubes were analyzed, including 67 single curves and 28 double curves. The average chest tube duration was 2.5 ± 1.1 days and the average length of stay was 5.0 ± 2.0 days. The average chest tube output eight hours prior to removal was 61.1 ± 45.6 mL. There was no significant difference in average length of stay for patients who underwent correction of a single curve versus a double curve nor was there a difference in average length of stay or chest tube duration for revisions compared to primary procedures. For the entire cohort, the 30-day emergency department visit rate was 7.4% (n = 7) and the readmission rate was 4.2% (n = 4). Conclusions This early review of a 2-year two row vertebral body tethering postoperative experience provides a report of a safe and effective approach to chest tube management at a single academic center.

Fault-tolerant one-bit addition with the smallest interesting color code.

Fault-tolerant operations based on stabilizer codes are the state of the art in suppressing error rates in quantum computations. Most such codes do not permit a straightforward implementation of non-Clifford logical operations, which are necessary to define a universal gate set. As a result, implementations of these operations must use either error-correcting codes with more complicated error correction procedures or gate teleportation and magic states, which are prepared at the logical level, increasing overhead to a degree that precludes near-term implementation. Here, we implement a small quantum algorithm, one-qubit addition, fault-tolerantly on a trapped-ion quantum computer, using the [Formula: see text] color code. By removing unnecessary error correction circuits and using low-overhead techniques for fault-tolerant preparation and measurement, we reduce the number of error-prone two-qubit gates and measurements to 36. We observe arithmetic errors with a rate of ∼1.1 × 10-3 for the fault-tolerant circuit and ∼9.5 × 10-3 for the unencoded circuit.

Two-stage corrective operation for the treatment of pes cavovarus in patients with spina bifida.

Pes cavovarus has an estimated incidence of 8%-17% in patients with spina bifida (SB). The majority of the current literature on surgical treatment of cavovarus feet in children and adolescents includes a variety of diagnoses. There are currently no case series describing a treatment algorithm for deformity correction in this specific patient population. The authors of this study present the results of a retrospective case series performed to assess the radiographic outcomes of two-stage corrective surgery in patients with SB. To assess the radiographic outcomes of a staged operation consisting of radical plantar release followed by osteotomy for pes cavovarus in patients with SB. Retrospective chart review was performed on patients with SB with a diagnosis of pes cavovarus at a freestanding children's hospital who underwent surgical correction of the deformity. Patients were excluded for lack of two-stage corrective operation, nonambulatory status, lack of at least six months follow-up, and age > 18 years at the time of surgery. This resulted in a cohort of 19 patients. Radiographic analysis was performed on 11 feet that had a complete series of preoperative and postoperative weightbearing X-rays. Preoperative and postoperative radiographic outcome measurements were compared using a two-sample t-test. Significant changes between the preoperative and postoperative measurements were seen in Meary's angle, the anteroposterior talo-first metatarsal (AP TMT1) angle, and the talonavicular coverage. Mean values of Meary's angle were 17.9 ± 13.1 preoperatively and 4.7 ± 10.3 postoperatively (P = 0.016). Mean AP TMT1 angle was 20.6 ± 15.1 preoperatively and 9.3 ± 5.5 postoperatively (P = 0.011). Mean talonavicular coverage values were -10.3 ± 9.6 preoperatively and -3.8 ± 10.1 postoperatively (P = 0.025). The two-stage corrective procedure demonstrated efficacy in correcting cavovarus deformity in patients with SB. Providers should strongly consider employing the staged surgical algorithm presented in this manuscript for management of these patients.

Development and Implementation of a Safety Incident Report System for Health Care Discipline Students During Clinical Internships: Observational Study.

Patient safety is a fundamental aspect of health care practice across global health systems. Safe practices, which include incident reporting systems, have proven valuable in preventing the recurrence of safety incidents. However, the accessibility of this tool for health care discipline students is not consistent, limiting their acquisition of competencies. In addition, there is no tools to familiarize students with analyzing safety incidents. Gamification has emerged as an effective strategy in health care education. This study aims to develop an incident reporting system tailored to the specific needs of health care discipline students, named Safety Incident Report System for Students. Secondary objectives included studying the performance of different groups of students in the use of the platform and training them on the correct procedures for reporting. This was an observational study carried out in 3 phases. Phase 1 consisted of the development of the web-based platform and the incident registration form. For this purpose, systems already developed and in use in Spain were taken as a basis. During phase 2, a total of 223 students in medicine and nursing with clinical internships from universities in Argentina, Brazil, Colombia, Ecuador, and Spain received an introductory seminar and were given access to the platform. Phase 3 ran in parallel and involved evaluation and feedback of the reports received as well as the opportunity to submit the students' opinion on the process. Descriptive statistics were obtained to gain information about the incidents, and mean comparisons by groups were performed to analyze the scores obtained. The final form was divided into 9 sections and consisted of 48 questions that allowed for introducing data about the incident, its causes, and proposals for an improvement plan. The platform included a personal dashboard displaying submitted reports, average scores, progression, and score rankings. A total of 105 students participated, submitting 147 reports. Incidents were mainly reported in the hospital setting, with complications of care (87/346, 25.1%) and effects of medication or medical products (82/346, 23.7%) being predominant. The most repeated causes were related confusion, oversight, or distractions (49/147, 33.3%) and absence of process verification (44/147, 29.9%). Statistically significant differences were observed between the mean final scores received by country (P<.001) and sex (P=.006) but not by studies (P=.47). Overall, participants rated the experience of using the Safety Incident Report System for Students positively. This study presents an initial adaptation of reporting systems to suit the needs of students, introducing a guided and inspiring framework that has garnered positive acceptance among students. Through this endeavor, a pathway toward a safety culture within the faculty is established. A long-term follow-up would be desirable to check the real benefits of using the tool during education. Trial Registration: ClinicalTrials.gov NCT05350345; https://clinicaltrials.gov/study/NCT05350345.

Numerical Study on the Impact Pressure of Droplets on Wind Turbine Blades Using a Whirling Arm Rain Erosion Tester

The leading-edge erosion of a wind turbine blade was tested using a whirling arm rain erosion tester, whose rotation rate is considerably higher than that of a full-scale wind turbine owing to the scale effect. In this study, we assessed the impact pressure of droplets on a wet surface of wind turbine blades using numerical simulation of liquid droplet impact by solving the Navier–Stokes equations combined with the volume-of-fluid method. This was conducted in combination with an estimation of liquid film thickness on the rotating blade using an approximate solution of Navier–Stokes equations considering the centrifugal and Coriolis forces. Our study revealed that the impact pressure on the rain erosion tester exceeded that on the wind turbine blade, attributed to the thinner liquid film on the rain erosion tester than on the wind turbine blade caused by the influence of centrifugal and Coriolis forces. This indicates the importance of correcting the influence of liquid-film thickness in estimating the impact velocity of droplets on the wind turbine blade. Furthermore, we demonstrated the correction procedure when estimating the impact velocity of droplets on the wind turbine blade.

Brow rhytidectomy with or without Stades-like procedure for correction of pseudoptosis and trichiasis-entropion of the upper eyelid in Chow Chow and Shar-Pei dogs: A retrospective study of 27 dogs (2019-2022).

Heavy brows in Chow Chow and Shar-Pei dogs can be associated with pseudoptosis and trichiasis-entropion of the upper eyelids, causing vision impairment and ocular discomfort. This study describes the outcomes of brow rhytidectomy ± Stades-like procedure to address these anatomical abnormalities. Retrospective medical records review (2019-2022). Twenty-seven dogs (n = 15 Chow Chow, n = 12 Shar-Peis) were included, aged 1.9 ± 1.5 years (0.5-6.5 years). Presenting complaints included recurrent episodes of ocular inflammation (n = 13, 48.1%), blepharospasm (n = 10, 37.0%), corneal ulcers (n = 8, 29.6%), entropion (n = 6, 22.2%), and impaired vision (n = 4, 14.8%). Brow skin was removed as follows: (i) First incision parallel and 10-15 mm dorsal to upper lid, slightly extending beyond medial/lateral canthi; (ii) second incision forming an arc with its apex 15-35 mm dorsal to the first incision; and (iii) standard two or three layers closure. In 22/27 dogs, a Stades-like procedure was performed by removing a 2-4 mm strip of skin above eyelid margin and leaving it to heal by secondary intention (no sutures). At last recheck (follow-up 354.5 ± 187.8 days), 19/27 dogs (70.4%) had an adequate eyelid conformation, 7/27 dogs (25.9%) were considered under-corrected, and 1/27 dogs (3.7%) was over-corrected. Most owners (81.5%) were satisfied with the surgical results. Most cases (96.3%) had no recurrence of the clinical signs during the entire follow-up period. Brow rhytidectomy ± Stades-like procedure provide good cosmetic and clinical outcomes in Chow Chow and Shar-Pei dogs, although under correction may occur in severely affected dogs and with advancing time.

PaIRS-UniNa: A Robust And Accurate Free Tool For Digital Particle Image Velocimetry And Optical Camera Calibration

This contribution presents PaIRS-UniNa (PArticle Image Reconstruction Software – University of Naples “Federico II”), a free software application designed to perform digital particle image velocimetry (PIV). PaIRS-UniNa relies on a powerful C library designed for speed, robustness and accuracy, and a user-friendly graphical interface (Figure 1) running in Python environment on all operating systems, including Windows, Linux and MacOS. At the current stage, it features modules to perform two-component (2C) PIV, stereoscopic PIV and optical camera calibration for multi-camera systems. The processing of PIV and stereoscopic PIV data is based on an iterative image deformation method, which can be customized by the user varying different parameters in such a way to find the best compromise between accuracy and computational speed. These parameters include the size, shape and number of interrogation windows, the number of process iterations and the type of interpolating functions for both image deformation and displacement interpolation (such as bilinear, bicubic, methods based on simplexes or the FFT shift theorem and B-splines of varying orders). Additionally, it is possible to select a range of weighting windows for cross-correlation estimation and velocity field filtering, including rectangular, Blackman, Gaussian, Harris, Hann windows, among others, and several vector validation strategies for outlier detection and replacement. Such a level of customization enables to effectively adjust the modulation transfer function of the PIV process to meet specific application requirements. For the stereoscopic PIV process two different approaches are possible: mapping, which involves applying PIV to de-warped images for 2D-2C displacement fields, and warping, which applies PIV to raw images and combine 3C reconstruction and image dewarping in a single subsequent step. In order to accurately estimate the laser sheet plane location and correct errors due to misalignment and inaccurate displacement vector positions, a disparity correction procedure is also available. The calibration module (CalVi) supports accurate calibration with the camera models mostly used in the PIV community: polynomials, rational functions and the pinhole camera model. Moreover, it supports the integration of the pinhole camera model with a refractive correction model for cylindrical geometries and camera calibration procedures working with unknown positions and orientations of the calibration target. In such a way, the target may be moved by hand without losing accuracy in comparison with a conventional calibration, in which the target is displaced with the aid of translational and rotational stages and knowledge of the target positions is strictly required. Already used in numerous experimental studies by the Experimental Thermo-Fluid Dynamics group of University of Naples “Federico II” and international collaborating groups, PaIRS-UniNa offers a rapid and effective free alternative to commercial PIV software for research and industrial use.