Operative Field Research Articles

Operational field trialling of Felixer™ grooming traps for the control of feral cats in the Strzelecki Desert, Australia

Context Feral cats (Felis catus) have an impact on native wildlife populations around the world but are difficult to control because of their neophobic behaviours and preference for live prey over scavenging poisoned baits. Felixers™ address these challenges by squirting poison-gel directly onto feral cats, exploiting their fastidious oral grooming tendencies to facilitate poison ingestion. Aims This study trialled Felixers in a landscape-scale arid-ecosystem site to assess their capacity to sustainably manage cat populations in a semi-bounded in situ predator training area and to eradicate cat incursions into a feral-free safe haven. Specifically, the aims were to determine target specificity and firing rates; optimise installation sites to exploit cat behaviour and landscape features; assess the fate of individuals following Felixer interaction; and assess the overall cost, performance and efficacy of Felixers compared with conventional cat control methods. Methods Up to nine Felixers were simultaneously deployed across three trial periods, spanning 30 months (4,642 trap nights) in Sturt National Park in the Strzelecki Desert dunefields of Australia. Felixers were deployed within and outside of feral-free safe havens, at varying cat densities, with populations monitored through camera-trap activity indices and individual behaviour monitored through satellite tracking. Key results Felixers fired at 20.3–43.9% of cats that passed in front (292 of 1,144 cats), with the remainder failing to satisfy the discriminatory algorithm’s target criteria. The devices had 99.93% target specificity from 17,425 interactions with moving animals and objects. Overall cat activity was lower in a semi-bounded 10,400 ha landscape-scale area where Felixers were intensively used, relative to an adjacent unbounded area where no cat control was occurring, over a 12-month subset of the 30-month trial. Felixers also resolved one of two incursions by cats into a 2,000 ha safe haven. Optimisation of Felixer placement and upgrading of software drove improvements in technical reliability and target identification during the trial. Shortcomings included cost and high incidence of technical faults, causing significant downtime and requiring regular investment of field staff time for monitoring and resolution. Conclusions Felixers provide a safe tool for cat management and eradication at intensively managed conservation sites. Efficacy could be improved through reductions in cost and improvements in reliability. Implications Overall Felixers appear to be an effective tool for cat management, when used in an integrated approach.

Review Paper- A Study of TJSB Bank’s Term Loan Products Through V Loans

With the modest beginning in 1972 in the co- operative field, TJSB Sahakari Bank Ltd (TJSB) and has emerged as one of the leading multi-state scheduled co-operative Bank in the country. TJSB presently is catering to the needs of society through a close network of 64 Branches and 1 Extension Counters spread all over the city of Thane, Mumbai, Navi Mumbai, Nasik, Pune, Satara, Aurangabad, Kolhapur, Nagpur, Latur, Goa & Karnataka. All these Branches have made remarkable progress on all fronts in all these years. TJSB believes that "customer delight" is the ultimate goal and has a strong belief that Customers & all Stakeholders wholehearted support, absolute faith and their patronage has largely been responsible for its enviable growth. TJSB is committed to provide banking with speed, comfort and convenience. A large number of successful industrialists, traders and professionals have grown leaps & bound due to timely assistance and support of the Bank. TJSB has set before a Visionary Growth Plan focusing all business strategies solely on creation of Stakeholders value. . KEYWORDS Loan Products, Term Loans Banking, TJSB Bank, Industrial Finance, Cooperative Bank, Loan Security, Credit Risk, Loan & Advance, Credit Policies, Loans, Credit Score.

Off-Highway Collision Avoidance System Leveraging Cellular Vehicle-to-Everything and Software-Defined Vehicle Architecture

<div>The off-highway industry witnesses a vast growth in integrating new technologies such as advance driver assistance systems (ADAS/ADS) and connectivity to the vehicles. This is primarily due to the need for providing a safe operational domain for the operators and other people. Having a full perception of the vehicle’s surrounding can be challenging due to the unstructured nature of the field of operation. This research proposes a novel collective perception system that utilizes a C-V2X Roadside Unit (RSU)-based object detection system as well as an onboard perception system. The vehicle uses the input from both systems to maneuver the operational field safely. This article also explored implementing a software-defined vehicle (SDV) architecture on an off-highway vehicle aiming to consolidate the ADAS system hardware and enable over-the-air (OTA) software update capability. Test results showed that FEV’s collective perception system was able to provide the necessary nearby and non-line-of-sight detections to the vehicle’s controls algorithms and the vehicle was able to navigate the environment safely.</div>

Development of a controlled-release mosquito RNAi yeast larvicide suitable for the sustained control of large water storage containers

Large household water storage containers are among the most productive habitats for Aedes aegypti (Linnaeus, 1762), the primary mosquito vector for dengue and other arboviral pathogens. Increasing concerns for insecticide resistance and larvicide safety are limiting the successful treatment of large household water storage containers, which are among the most productive habitats for Aedes juveniles. The recent development of species-specific RNAi-based yeast larvicides could help overcome these problems, particularly if shelf stable ready-to-use formulations with significant residual activity in water can be developed. Here we examine the hypothesis that development of a shelf-stable controlled-release RNAi yeast formulation can facilitate lasting control of A. aegypti juveniles in large water storage containers. In this study, a dried inactivated yeast was incorporated into a biodegradable matrix containing a mixture of polylactic acid, a preservative, and UV protectants. The formulation was prepared using food-grade level components to prevent toxicity to humans or other organisms. Both floating and sinking versions of the tablets were prepared for treatment of various sized water containers, including household water storage tank-sized containers. The tablets passed accelerated storage tests of shelf life stability and demonstrated up to six months residual activity in water. The yeast performed well in both small and large containers, including water barrels containing 20-1000 larvae each, and in outdoor barrel trials. Future studies will include the evaluation of the yeast larvicide in larger operational field trials that will further assess the potential for incorporating this new technology into integrated mosquito control programs worldwide.

Accuracy of cervical pedicle screw placement with a robotic guidance system via the open midline approach.

An increasing number of studies have shown that a robotic guidance system (RGS) can provide accurate cervical pedicle screw (CPS) placement. The accuracy of CPS placement with an RGS has mostly been evaluated according to the magnitude of pedicular cortical violation. However, an RGS assists in pedicle screw (PS) placement by directly indicating the preplanned trajectory in the operative field. Therefore, investigating how accurately the planned trajectory is executed is essential to determine the accuracy of CPS placement using an RGS, in addition to evaluating the clinical accuracy. Hence, this study aimed to evaluate the accuracy of CPS placement using an RGS by comparing the executed trajectory with the planned trajectory. This prospective study analyzed 174 CPSs placed between C2 and C6 in 39 consecutive patients who underwent cervical fusion surgery using an RGS. The deviation of the executed CPS trajectory from the planned trajectory was measured at the entry point and at a depth of 20 mm in both the axial and sagittal planes on CT images. Additionally, its direction was noted (lateral or medial in the axial plane and cephalad or caudal in the sagittal plane). These measurements were analyzed according to spinal levels (C2 and C3-C6), laterality (right and left sides), and registration material (preoperative and intraoperative CT images). Furthermore, clinical accuracy was assessed using the Neo classification (grades 0-3). Overall, the mean (± SD) deviations from the planned trajectory at the entry point and at a depth of 20 mm were 0.79 ± 0.65 mm and 0.86 ± 0.69 mm in the axial plane and 0.88 ± 0.81 mm and 0.82 ± 0.79 mm in the sagittal plane, respectively. When separately examining the deviations according to spinal level, laterality, and registration material, the mean deviations were < 1 mm at any point. Analysis of the deviation direction showed that the CPSs were placed divergently from the planned trajectory in the axial plane. In the sagittal plane, the CPSs were likely to be inserted parallel to the planned trajectory. However, at C2 the CPSs were placed in the caudal direction relative to the planned trajectory. Regarding clinical accuracy, the acceptable rates (grades 0 and 1) were 97.7% and 97.1% in the axial and sagittal planes, respectively, without any CPS-related complications. This study suggests that an RGS can reliably execute planned trajectories, aiding accurate CPS placement in clinical settings.

Temporal Incision Super-high Superficial Musculoaponeurotic System Face Lift for Chinese Patients.

This investigation assessed patient satisfaction with a temporal incision technique using a super-high superficial musculoaponeurotic system (SMAS) flap for midface lifting in a Chinese patient cohort. From July 2019 to July 2023, 95 patients underwent midface lifts via a temporal incision approach at our institution. The extent of SMAS flap dissection spanned 2 cm above the outer canthus, to the lower margin of the zygomatic arch inferiorly, and medially to the zygomaticus major muscle. The technique involved anchoring the elevated SMAS flap to the deep temporal fascia to elevate the malar fat pads, correct sagging tissues, and ameliorate the appearance of nasolabial folds. Among the 95 patients, 61 completed a follow-up ranging from 6 months to 2 years postsurgery, with a majority reporting satisfaction with the aesthetic results of their midface lift. No significant complications, including permanent facial nerve injury, were reported. The temporal incision super-high SMAS face lift technique demonstrated high patient satisfaction and clinical effectiveness in improving the appearance of nasolabial fold and midface aesthetics. However, the success of this technique hinges on a comprehensive understanding of facial anatomy due to the confined operative field, highlighting its technical demands and the need for surgical expertise.

Unlocking wind power potential to improve energy security in Ethiopia

Ethiopia possesses abundant wind resources that have the potential to revolutionize its energy sector by providing reliable and sustainable electricity through wind power. Despite the presence of a few operational wind farms, the country is facing challenges in generating sustainable electricity. The slow progress in wind power development raises concerns, as the impact of declining power generation from existing wind farms on economic development and return on investment remains insufficiently examined. The research paper aims to examine the status, challenges, and opportunities in developing, deploying, and sustaining wind power generation. This was accomplished through qualitative and quantitative analysis using 11 years of power generation data from operational wind farms and field research. Data sources include Ethiopian Electric Power, wind power operation reports, official government reports, field observations and discussions with wind power operators. The study reveals that challenges such as intermittent wind resources, high initial investment costs, inadequate transmission infrastructure, limited skilled workforce, and environmental concerns hinder the realization of wind energy's full potential. The article provides evidence-based recommendations for policymakers and the wider stakeholders to address the challenges and maximize benefits of wind energy in Ethiopia. This contributes to understanding the current situation and necessary actions to harness the country's abundant wind power potential.

Does intubation while observing the glottis with a fiberoptic scope reduce postoperative sore throat?

IntroductionIn oral maxillofacial surgery, the nasal tracheal tube is mostly used to provide a better surgical field for oral, head and neck operations. Postoperative sore throat and hoarseness are common following tracheal intubation, with an incidence of 11–55%. Then, we previously reported advantage technique of fiberoptic scope to decrease the risk which the tip of the tube is visualized as the tube is advanced which helps avoid impingement of the tube. However, the extent to which this technique causes postoperative complications is unknown compared to traditional technique. The aim of this study was retrospectively to determine the effect of postoperative sore throat following nasotracheal intubation by tip of the tube is visualized by fiberoptic scope.MethodAnesthesia records of the adult patients with nasotracheal intubation were checked. Patients underwent oral maxillofacial surgery from January 2021 until March 2023. Facilitated with rocuronium, nasotracheal intubation was performed using the traditional or observative method by fiberoptic scope with a 4.8 mm outer diameter. Intubation was performed with a cuffed 6.5–8.0 mm ID nasotracheal tube. The following variables were recorded: gender, age, height, weight, ASA classification, anesthesia time, duration of intubation, tube size, intubation attempts, fentanyl and remifentanil. The postoperative sore throat and the incidence of hoarseness were recorded at operative day and at the day after operative day, and the time to recovery.ResultA total of 104 cases (traditional fiberoptic intubation n = 51, observative fiberoptic intubation n = 53) were enrolled in this retrospective study. There were no significant differences in clinical characteristics and anesthetic data. There was not significant difference in incidence of postoperative sore throat, hoarseness and recovery between the two groups (P = 0.61, 0.44, 0.90). For subjects reporting postoperative sore throat (n = 30), there was not a significant difference in VAS means at operative day and at the day after operative day between the two groups (P = 0.81, 0.91).ConclusionWe found that postoperative sore throat and recovery were not influenced by observative fiberoptic scope for nasotracheal intubation.

Full-endoscopic Spine Surgery for the Treatment of Lumbar Ligamentous Flavum Hematoma.

Lumbar ligamentous flavum hematoma (LFH) is a relatively rare pathology, and it is difficult to differentiate it from other cystic lesions. Full-endoscopic spine surgery (FESS), an excellent approach for clear and magnified operative visual field since it allows saline irrigation and minimizes destruction of surrounding tissues, has been applied to the treatment. This study aims to present a case series of patients with lumbar LFH treated by FESS.This case series consists of 17 lumbar LFH cases treated by FESS between May 2018 and November 2021 at a single institution. Patient background and operative data were collected from their medical records. The numerical rating scale (NRS), Oswestry Disability Index (ODI), and European Quality of Life-5 Dimensions (EQ-5D) were recorded preoperatively and postoperatively.Elderly men tend to suffer from lumbar LFH at the L4/5 vertebral level. Discontinuity with facet joint was confirmed under endoscopic visualization in all 17 cases. Blood clots were also observed in all cases under endoscope. The mean operative time was 68.6 min without complication. The patients were discharged at average 1.4 days after FESS with significant improvement of NRS score (P < 0.001). ODI and EQ-5D scores 2-year postoperatively statistically improved (P < 0.001), and there was no recurrence during followup period.The operative outcomes of lumbar LFH treated by FESS were satisfactory. FESS excels not only in the diagnosis but also in the treatment of lumbar LFH.

EGS SO22 - When What Is Left Is Not Right

Abstract Background Aims We present a case of small bowel obstruction in a massive inguinoscrotal hernia, with loss of abdominal domain, treated successfully by emergency surgery. The chronicity of the condition resulted in a large pendulous pelvic stomach, with the Duodeno jejunal flexure within the hernia and constricted by the hernial ring. Method The first contact with surgical team was as emergency, since initial referral to surgical outpatients was deferred by the patient, due to his embarrassment. After initial attempts to decompress the stomach through nasogastric tube and with nutritional support with parenteral nutrition, the patient was counselled for surgery. Informed consent was taken for right orchidectomy, possibility of open abdomen with delayed reconstruction, stoma, respiratory compromise, multiorgan failure and death.Prior to intervention, Intensive Therapy unit was consulted for admission following surgery, with plans to use Botox in the abdominal wall, to improve compliance, in case of abdominal compartment syndrome or respiratory failure. Results Through an inguinoscrotal incision, the inguinal canal was opened and the cord structures were transfixed and divided. The internal ring was divided laterally to allow gradual compression and replacement of the hernia intraabdominally. Over 8 litres of fluid was removed from Nasogastric aspirate. Lymphoedema in the scrotum made the laterality of the testis seen in the operative field ambiguous. The hernia was repaired with Bassini repair of the muscles, followed by polypropelene mesh. Following surgery, patient was discharged home with no immediate complications. Histology of the sac and Tunica Vaginalis revealed an atrophic right testis. Conclusion Distorted anatomy from chronicity of common surgical pathology may present challenge to even experienced surgeons. Unusual presentation of common pathology requires thinking outside the box. Since the lymphoedema in the scrotal hernial sac made the laterality of the testis unclear, an informed decision was taken not to remove the single testis seen in the operative field. The histology confirmed that this was the right decision, since the atrophic right testis was included in the operative specimen. Post operative imaging confirmed what was left, was the left testis.

Research on digital twin technology and its application in intelligent operation and maintenance of high-speed railway infrastructure

PurposeThis paper analyzes the application of digital twin technology in the field of intelligent operation and maintenance of high-speed railway infrastructure from the perspective of top-level design.Design/methodology/approachThis paper provides a comprehensive overview of the definition, connotations, characteristics and key technologies of digital twin technology. It also conducts a thorough analysis of the current state of digital twin applications, with a particular focus on the overall requirements for intelligent operation and maintenance of high-speed railway infrastructure. Using the Jinan Yellow River Bridge on the Beijing–Shanghai high-speed railway as a case study, the paper details the construction process of the twin system from the perspectives of system architecture, theoretical definition, model construction and platform design.FindingsDigital twin technology can play an important role in the whole life cycle management, fault prediction and condition monitoring in the field of high-speed rail operation and maintenance. Digital twin technology is of great significance to improve the intelligent level of high-speed railway operation and management.Originality/valueThis paper systematically summarizes the main components of digital twin railway. The general framework of the digital twin bridge is given, and its application in the field of intelligent operation and maintenance is prospected.

Pengaruh Lingkungan Kerja dan Work-Life Balance terhadap Kepuasan Kerja: Stres Kerja sebagai Variabel Intervening

Employees are one of the crucial factors in a company. Companies must be able to pay attention to the physical and mental needs of their employees to achieve good performance. The work environment and work-life balance are factors that affect employee performance and job satisfaction. This study aims to examine the influence of the work environment and work-life balance on job satisfaction, work stress as an intervening variable. In this study, the sample used was PT Telen employees. The number of samples taken was 100 respondents of PT Telen employees specifically in the operational field. The data for this study were obtained using an online survey questionnaire via google form with a measurement scale using a 5-point Likert scale. This research is a descriptive study using quantitative methods. The analysis tool used is Structural Equation Modeling (SEM), with data analysis techniques using the Smart-PLS version 3.0 application. The results of the study indicate that the work environment and work-life balance have a good relationship with a significant negative effect on work stress, but the work environment and work-life balance have a positive and significant effect on job satisfaction. While work stress has a negative and significant relationship with job satisfaction, and work stress can mediate the influence of the work environment on job satisfaction.

Analysis of the Performance of the City Transport Route Network System (AKDP) in Gorontalo Province, Indonesia

This study evaluates the performance of the intercity public transportation route network system (AKDP) in Gorontalo Province, Indonesia, with a focus on aspects of service coverage, overlap, density, and route network deviations. Data were obtained through field surveys. The research method includes spatial analysis using Geographic Information Systems (GIS) to evaluate the coverage and distribution of routes, as well as statistical analysis to measure the density and ratio of routes based on operational data and field surveys. The research results show that the coverage of route services is not yet even, with some areas being underserved. Route overlaps were identified on several main corridors, resulting in operational inefficiencies. The density of the routes shows significant variation, with some routes experiencing overcrowding while others are underutilized. The route ratio also shows an imbalance between the number of vehicles and passenger needs. Deviations from the established route plan were also found, which could potentially reduce service reliability. Based on these findings, it is recommended to restructure the route network and improve operational management to enhance the efficiency and quality of transportation services in Gorontalo Province.

Differential Positioning with Bluetooth Low Energy (BLE) Beacons for UAS Indoor Operations: Analysis and Results.

Localization of unmanned aircraft systems (UASs) in indoor scenarios and GNSS-denied environments is a difficult problem, particularly in dynamic scenarios where traditional on-board equipment (such as LiDAR, radar, sonar, camera) may fail. In the framework of autonomous UAS missions, precise feedback on real-time aircraft position is very important, and several technologies alternative to GNSS-based approaches for UAS positioning in indoor navigation have been recently explored. In this paper, we propose a low-cost IPS for UAVs, based on Bluetooth low energy (BLE) beacons, which exploits the RSSI (received signal strength indicator) for distance estimation and positioning. Distance information from measured RSSI values can be degraded by multipath, reflection, and fading that cause unpredictable variability of the RSSI and may lead to poor-quality measurements. To enhance the accuracy of the position estimation, this work applies a differential distance correction (DDC) technique, similar to differential GNSS (DGNSS) and real-time kinematic (RTK) positioning. The method uses differential information from a reference station positioned at known coordinates to correct the position of the rover station. A mathematical model was established to analyze the relation between the RSSI and the distance from Bluetooth devices (Eddystone BLE beacons) placed in the indoor operation field. The master reference station was a Raspberry Pi 4 model B, and the rover (unknown target) was an Arduino Nano 33 BLE microcontroller, which was mounted on-board a UAV. Position estimation was achieved by trilateration, and the extended Kalman filter (EKF) was applied, considering the nonlinear propriety of beacon signals to correct data from noise, drift, and bias errors. Experimental results and system performance analysis show the feasibility of this methodology, as well as the reduction of position uncertainty obtained by the DCC technique.

A Novel Isolation Technique Using Polytetrafluoroethylene Tape and Split Dam Isolation for Cementation in Bridge Restorations.

This case report presents a novel technique for bridge restoration using polytetrafluoroethylene (PTFE) tape and split dam isolation in situations where achieving complete dental dam isolation is challenging. Achieving high-quality isolation by controlling gingival crevicular fluid and intraoral relative humidity is important during cementation. However, an improved technique during bridge restoration is needed due to the difficulties faced with dental dam isolation. A porcelain fused to zirconia bridge extending from the maxillary canine to the first molar was used to demonstrate the novel restoration technique in this case report. Split dam isolation lowers the relative humidity in the oral cavity, and PTFE blocks the gingival crevicular fluid. The effects of combining PTFE tape with split dam isolation on isolation (controlling crevicular fluid, saliva, and relative humidity in the operative field) were similar to those obtained with dental dam isolation and made for easier removal of excess cement. The novel technique introduced in this case report can enhance isolation quality during bridge restoration.

Emergency conversion from Robotic Thoracoscopy to Thoracotomy: A safe, reproducible, and effective technique

Robotic thoracoscopic surgical operations are increasingly performed worldwide. Current lung resection trends indicate that the robotic approach has now surpassed conventional VATS (video assisted thoracoscopy surgery) in the United States. Emergency conversion to an open thoracotomy is an uncommon occurrence; however, preparedness for this infrequent but potentially catastrophic event is paramount. There is a paucity of step-by-step instruction available on how to convert from robotic thoracoscopy safely and reliably to thoracotomy. Herein, we present our conversion method which has been refined in an iterative fashion based on real-life experience and testing in a simulated environment. This method ensures pressure control of bleeding either by the surgeon or bedside assist while also maintaining vision of the operative field throughout the conversion process. At no point is bleeding control maintained by an unmanned robotic instrument. This technical report aims to provide thoracic surgery teams a safe and reliable option for emergency conversion during robotic thoracoscopy.

Precommercial Thinning but Not Commercial Thinning Increases the Merchantable and Large Sawlog Volume Production of Lodgepole Pine on Fair Sites

Abstract The effect of thinning on stand structure and volume production is well studied. However, the effect of combinations of precommercial (PCT) and commercial thinning (CT) on the production of different log grades and differential growth responses is less understood, although it is crucial for forest managers to choose an optimal management regime. Starting with actual operational field data from a lodgepole pine (Pinus contorta var.latifolia) PCT trial on fair quality sites (site index: 16–18 m at 50 years), we used an individual tree growth model to forecast development over the entire rotation. We found thinning changed the structure (density, quadratic mean diameter) of the stands but not the total volume production. However, in terms of merchantable volume and large sawlog volume, stands with only PCT provided the largest volume, more than either CT or a combination of PCT and CT, or the unthinned control. Moreover, our study findings also showed that, by doing only PCT, stands reached maximum merchantable or large sawlog mean annual increment earlier than other thinned or unthinned stands. This indicates that PCT might shorten the rotation length and contribute to an enhanced supply of timber. Study Implications: The effect of commercial thinning (CT) on stand structure and volume production is well studied. However, the effect of combinations of precommercial (PCT) and commercial thinning (CT) on the production of different log grades and differential growth responses is less studied, although it is crucial for forest managers to choose a management option. Starting with actual operational field data from a lodgepole pine (Pinus contorta var.latifolia) PCT trial in a fair-quality site (site index [SI]: 16–18), we used an individual tree growth model to develop the stands over the entire rotation. We found thinning changed the structure (density, quadratic mean diameter) of the stands but not the total volume production. However, in terms of merchantable volume and large sawlog volume, stands with only PCT provided the largest volume, more than either CT or a combination of PCT and CT, or the unthinned control. Moreover, our study findings also showed that, by doing only PCT, stands reached maximum merchantable or large sawlog MAI earlier than other thinned or unthinned stands. This indicates that PCT might shorten the rotation length and contribute to the continuous supply of timber production.

The Supervising Role of the Apron Movement Control (AMC) Unit on Aviation Security and Safety at Pattimura Ambon International Airport

Security and safety are crucial factors in aviation activities, considering the sensitivity of air transportation that requires assurance of safety at all times. The success of the AMC unit's tasks and responsibilities is measured by their ability to optimize supervision, thus creating safe and secure conditions, in accordance with applicable regulations. This study aims to evaluate the role of the AMC unit in ensuring security and safety in the airside area of Pattimura Ambon International Airport and to identify obstacles in supervision in the area. The approach used in this study is descriptive qualitative. The data collected consists of primary and secondary data. Primary data is obtained through observation and interviews, while secondary data comes from literature studies and photographs related to the problem being studied. Data analysis techniques involve data reduction, data presentation, and drawing conclusions. To ensure the validity of the data, triangulation techniques are used. The research was conducted in March 2024. The results of the study indicate that the AMC unit at Pattimura Ambon International Airport has carried out supervision well in accordance with the standard operating procedures PM-IK (Quality Procedures and Work Instructions). Supervision covers four components of the work area: Airport Operation Control Center (AOCC), Data Entry, Field Inspection, and Aviobridge Operations. Supervision is carried out through inspections every two hours for FOD and fuel spills, supervision of aircraft movements and engine running up/idle, GSE vehicle speed, and worker compliance with the use of Personal Protective Equipment. The AMC unit strives to implement the 3S+1C principle (Safety, Security, Service, and Compliance). The obstacles faced include a shortage of personnel, which causes an increase in workload and less than optimal supervision, as well as violations by service users or workers in the airside area, which have the potential to cause accidents.

FACTORS THAT INFLUENCE THE LONGEVITY OF COMPOSITE RESIN RESTORATIONS: Narrative review of the literature

Composite resins have gained great prominence in aesthetic dentistry in recent years, being increasingly used due to their properties and ease of handling. The objective of this narrative review of the literature is to address factors that will contribute to achieving greater longevity of composite resin restorations, namely isolation of the operative field, cavity preparation, adhesive system, photoactivation, finishing and polishing. The data presented in the review were obtained from 26 articles in Portuguese and English and books in the field of dentistry with high relevance to the proposed topic. It is concluded that for the restoration to be successful it is necessary to know the periodicities of the resin to be used, to have a well photoactivated adhesive layer, to guarantee a quality photoactivation where all the resin will be polymerized, a finish that removes all gross irregularities of the restoration and a effective polishing, making the surface of the resin smooth and shiny, this way it is possible to guarantee greater durability of clinical work involving composite resins.

Hepatic draining lymph nodes in human liver transplant: Implications in alloimmunity and tolerance

BackgroundHepatic draining lymph nodes (HDLN) are implicated in allograft alloimmunity and tolerance. In contrast to experimental work, the role of HDLNs in human liver transplant (LT) is unknown due to lack of relevant clinical tissue. MethodsDuring LT, the porta hepatis was dissected near the liver hilum during native hepatectomy. The HDLN in this region was taken prior to reperfusion (prereperfusion). Following complete reperfusion with recipient portal venous blood, hepatic arterial inflow into the allograft was established. As the recipient's common hepatic artery was fully mobilized, its HDLNs were removed and submitted to pathology (postreperfusion). ResultsOf 37 LTs performed between January 1, 2021, and July 9, 2022, 20 had both pre- and postreperfusion HDLNs archived (Group A); 11 had only postreperfusion HDLNs archived (Group B), and 6 had no archived HDLNs (Group C). Removing and archiving HDLNs did not increase operative times or transfusion requirements. For groups A, B, and C, mean (SD) warm ischemic times were 25.2 (2.0), 25.3 (3.2), and 28.3 (6.2) minutes, respectively (P > .05); operating times were 3.9 (0.7), 6.9 (7.8), and 7.9 (7.1) hours, respectively (A vs C, P = .017; C vs B, P > .05); and units of transfused packed red blood cells were 8.0 (3.8), 11.1 (10.3), and 12.2 (7.6), respectively (P > .05). ConclusionWe describe an approach for clinical archiving of HDLNs obtained within the operative field during orthotopic LT in humans. Availability of relevant HDLNs is essential for investigations of primary immune responses potentially important in allograft alloimmunity and tolerance.