Average Operation Research Articles

FSN: Joint Entity and Relation Extraction Based on Filter Separator Network.

Joint entity and relation extraction methods have attracted an increasing amount of attention recently due to their capacity to extract relational triples from intricate texts. However, most of the existing methods ignore the association and difference between the Named Entity Recognition (NER) subtask features and the Relation Extraction (RE) subtask features, which leads to an imbalance in the interaction between these two subtasks. To solve the above problems, we propose a new joint entity and relation extraction method, FSN. It contains a Filter Separator Network (FSN) module that employs a two-direction LSTM to filter and separate the information contained in a sentence and merges similar features through a splicing operation, thus solving the problem of the interaction imbalance between subtasks. In order to better extract the local feature information for each subtask, we designed a Named Entity Recognition Generation (NERG) module and a Relation Extraction Generation (REG) module by adopting the design idea of the decoder in Transformer and average pooling operations to better capture the entity boundary information in the sentence and the entity pair boundary information for each relation in the relational triple, respectively. Additionally, we propose a dynamic loss function that dynamically adjusts the learning weights of each subtask in each epoch according to the proportionality between each subtask, thus narrowing down the difference between the ideal and realistic results. We thoroughly evaluated our model on the SciERC dataset and the ACE2005 dataset. The experimental results demonstrate that our model achieves satisfactory results compared to the baseline model.

A modified ureteroileal anastomosis can reduce ureteroileal anastomotic stricture after ileal conduit.

Ileal conduit is commonly employed as a urinary diversion procedure for patients with bladder cancer after radical cystectomy. Studies have reported that ureteroileal anastomotic stricture remains a serious complication following ileal conduit diversion. The aim of this study was to introduce a novel modified technique for ureteroileal anastomosis and evaluate postoperative complications, with a specific focus on the incidence of ureteroileal anastomotic stricture. A prospective single-center, single-surgeon cohort study was conducted on 29 consecutive patients who underwent laparoscopic radical cystectomy with ileal conduit urinary diversion between February 2017 and April 2021. A descriptive statistical analysis was performed where intraoperative variables and postoperative complications were assessed. All 29 operations were successful with an average operation time of 372.9 ± 94.3min. The mean follow-up time was 39.62 ± 15.93months. No cases of UIAS occurred. Three patients (10.3%) had febrile urinary tract infection, three patients (10.3%) had a transient small bowel obstruction, one patient (3.4%) had ileal anastomotic fistula, one patient (3.4%) had ileal conduit leakage, and one patient (3.4%) died 2months after surgery due to multiple respiratory diseases. One patient (3.4%) had a mild left ureteral obstruction and CT indicated the obstruction site was in front of the iliac vessels where the left ureter had transposed to the right. The modified ureteroileal anastomosis can reduce the incidence of UIAS.

Economic rationale for the development of small vertically diversified pork production enterprises in Ukraine

Implementing the vertical diversification strategy for pig-breeding enterprises in Ukraine is one of the factors in increasing their economic efficiency and competitiveness. Mastering the following interrelated links of production and sale in animal husbandry increases enterprises' financial stability and economic security. The article economically substantiates the expediency of capital investments in developing vertically diversified pork production enterprises in Ukraine. The need for investments for the formation of fixed and working capital for the implementation of the project has been determined. The main operating costs for the organization of pig breeding, slaughter, and the sale of meat through the direct sales channel in the amount of 200 tons per year have been calculated. Planning of workforce needs for project implementation has been carried out. The leading indicators of the economic efficiency of capital investments for the production and sale of pork in the newly established enterprise have been determined. According to the study results, the relatively high investment attractiveness of developing small vertically diversified pork production enterprises in Ukraine with an orientation to local markets is substantiated. It has been established that for the implementation of the proposed project, about 1.1 million euros of advanced capital is needed, which is expected to pay off in 3.5 years. The project's five-year net present value has been determined to reach 690,000 euros at a discount rate of 2%. Accordingly, the projected internal rate of return will exceed 26%. The average annual net profit during the project implementation period will be 268 thousand euros, with an average operating cost of 457 thousand euros, allowing us to achieve 65% profitability of production and 32% profitability of pork sales. The projected average net return on capital for the project implementation period is expected to be 35%. The development of vertical diversification in small pork production enterprises in Ukraine will increase the added value and productivity of the involved financial, labor, material, and technical resources.

A novel group decision-making method for interval-valued q-rung dual hesitant fuzzy information using extended power average operator and Frank operations

This paper advances the field of multi-attribute group decision making (MAGDM) by proposing a novel framework based on interval-valued q-rung dual hesitant fuzzy sets (IVq-RDHFSs). IVq-RDHFSs, which surpass most existing fuzzy sets, effectively represent complex fuzzy information by describing membership and non-membership degrees through interval value sets. However, prior MAGDM methods based on IVq-RDHFSs have been limited by the functions of operation rules and aggregation operators (AOs). This limitation is addressed through the construction of a new MAGDM framework, leveraging the robust Frank t-norm and t-conorm (FTT) operation and the extended power average (EPA) operator. The proposed framework features the interval-valued q-rung dual hesitant fuzzy Frank weighted extended power average (IVq-RDHFFWEPA) operator to obtain comprehensive evaluation values. The paper also introduces novel techniques for determining the weights of decision-makers and attributes. Practical applications of the proposed method are demonstrated through the assessment of desalination technology selection and rural green eco-tourism projects. Sensitivity and comparison analyses validate the superior functionality, accuracy, and flexibility of this method compared to many state-of-the-art methods. The contributions of this paper are two-fold: it develops efficient measurement techniques for IVq-RDHFSs, such as distance and weight calculation, and it introduces a comprehensive MAGDM method by integrating FTT and EPA under IVq-RDHFSs, which improves the efficiency of solving decision-making problems.

Seeing in crowds: Averaging first, then max.

Crowding, a fundamental limit in object recognition, is believed to result from excessive integration of nearby items in peripheral vision. To understand its pooling mechanisms, we measured subjects' internal response distributions in an orientation crowding task. Contrary to the prediction of an averaging model, we observed a pattern suggesting that the perceptual judgement is made based on choosing the largest response across the noise-perturbed items. A model featuring first-stage averaging and second-stage signed-max operation predicts the diverse errors made by human observers under various signal strength levels. These findings suggest that different rules operate to resolve the bottleneck at early and high-level stages of visual processing, implementing a combination of linear and nonlinear pooling strategies.

Comparison of midterm efficacy of Kirschner wires and elastic intramedullary nails after closed reduction of Judet type 3 radial neck fractures in children: a multicenter study.

The objective of this study was to compare the midterm efficacy of Kirschner wires and elastic intramedullary nails after the closed reduction treatment of Judet 3 radial neck fractures in children. This was a retrospective multicenter study of patients diagnosed with Judet type 3 radial neck fractures who underwent closed reduction and internal fixation at four tertiary hospitals from January 2019 to December 2021. Gender, age, fracture type, operation time, follow-up time, x-ray results and complications were collected. The recovery of elbow joint between the two internal fixation methods, elbow motion and complications at the last follow-up were compared. The average operation time of EIN group was statistical significantly increased compared with KW group. There were no significant differences in MEPS score and ROM 3 months after surgery between the two groups, but the ROR Angle of EIN group was statistical significantly increased compared with KW group 3 months after surgery. There were no significant differences in MEPS score, ROM and ROR at the last follow-up. The incidence of complications in EIN group was significantly lower than that in KW group. The use of elastic intramedullary nails fixation or Kirschner wires fixation in the treatment of radial neck fractures in children can both achieve satisfactory fracture reduction and healing. Compared with elastic intramedullary nails, the operation time of Kirschner wires fixation is shorter, and the internal fixation does not need to be removed under anesthesia again, but the complication rate is higher.

Evaluation of the efficacy and safety of endoscopic band ligation in the treatment of bleeding from mild to moderate gastric varices type 1.

According to practice guidelines, endoscopic band ligation (EBL) and endoscopic tissue adhesive injection (TAI) are recommended for treating bleeding from esophagogastric varices. However, EBL and TAI are known to cause serious complications, such as hemorrhage from dislodged ligature rings caused by EBL and hemorrhage from operation-related ulcers resulting from TAI. However, the optimal therapy for mild to moderate type 1 gastric variceal hemorrhage (GOV1) has not been determined. Therefore, the aim of this study was to discover an individualized treatment for mild to moderate GOV1. To compare the efficacy, safety and costs of EBL and TAI for the treatment of mild and moderate GOV1. A clinical analysis of the data retrieved from patients with mild or moderate GOV1 gastric varices who were treated under endoscopy was also conducted. Patients were allocated to an EBL group or an endoscopic TAI group. The differences in the incidence of varicose relief, operative time, operation success rate, mortality rate within 6 wk, rebleeding rate, 6-wk operation-related ulcer healing rate, complication rate and average operation cost were compared between the two groups of patients. The total effective rate of the two treatments was similar, but the efficacy of EBL (66.7%) was markedly better than that of TAI (39.2%) (P < 0.05). The operation success rate in both groups was 100%, and the 6-wk mortality rate in both groups was 0%. The average operative time (26 min) in the EBL group was significantly shorter than that in the TAI group (46 min) (P < 0.01). The rate of delayed postoperative rebleeding in the EBL group was significantly lower than that in the TAI group (11.8% vs 45.1%) (P < 0.01). At 6 wk after the operation, the healing rate of operation-related ulcers in the EBL group was 80.4%, which was significantly greater than that in the TAI group (35.3%) (P < 0.01). The incidence of postoperative complications in the two groups was similar. The average cost and other related economic factors were greater for the EBL than for the TAI (P < 0.01). For mild to moderate GOV1, patients with EBL had a greater one-time varix eradication rate, a greater 6-wk operation-related ulcer healing rate, a lower delayed rebleeding rate and a lower cost than patients with TAI.

Single Port Modified Partial Nephrectomy: Novel Simultaneous Access to Peritoneal and Retroperitoneal Partial Nephrectomy, Initial Clinical Experience.

Introduction and Objective: Since its Food and Drug Administration (FDA) approval in 2018, Intuitive Surgical DaVinci single port (SP) robotic platform has been an effectively used technology for multiple urologic procedures. The purpose of this study is to share our early intraoperative and perioperative outcomes and potential benefits for performing a lower anterior access (LAA) incision for SP robot-assisted partial nephrectomy (SP-RAPN). The LAA incision enables performing a trans- or retroperitoneal (RP) approach through the same incision and eases the transition to a RP approach. Methods: This study is a prospective review of 78 SP-RAPN cases between March 2021 and January 2023 by an experienced robotic surgeon. A single 2-3 cm oblique incision parallel to the external oblique muscle, one-third of the distance between the iliac crest and umbilicus, was used to insert the multichannel port to perform the RAPN. We extracted intra- and perioperative data of these patients to share the outcomes of this approach. Results: SP-RAPN was effectively completed in 78 patients (38 females and 40 males) without conversion to open or laparoscopic techniques. The mean age was 61.2 ± 12.1 years. The mean tumor size was 3.0 ± 1.2 cm, 43 were right-sided masses, and 35 were left sided. The R.E.N.A.L Nephrometry score ranged from (4-11) with an average of 7.0 ± 1.9. Average operating room time was 90.5 ± 24.6 minutes, estimated blood loss was 88.3 ± 134 mL, and length of stay of 1.07 ± 0.7 days. Of the 78 cases, 40 required clamping of the renal artery with average warm ischemia time of 19.4 ± 6.7 minutes in patients who underwent clamping. No complications in all of 78 patients. Conclusions: This study demonstrates the feasibility and reproducibility of SP-RAPN using a LAA incision. This incision provides a standardized approach for surgeons to transition to the RP approach using the SP platform.

Aczel-Alsina power bonferroni aggregation operators for picture fuzzy information and decision analysis

Picture fuzzy set (PFS) is an expedient mathematical approach for interpreting imprecise and nebulous information, and the power Bonferroni mean (PBM) operator is a crucial generalization of the power average (PA) operator, and the Bonferroni mean (BM) operator. Based on the Aczel-Alsina (AA), operational principles of PFS, we expand the PBM operator to integrate PFVs and develop a few AOs, namely PF Aczel-Alsina PBM (PFAAPBM) operator, weighted PF Aczel-Alsina PBM (WPFAAPBM) operator, PF Aczel-Alsina PGBM (PFAAPGBM) operator, and weighted geometric PF Aczel-Alsina PBM (WGPFAAPBM) operators respectively. These newly suggested PF Aczel-Alsina PBM operators can detect the connections between the membership, abstinence, and non-membership functions, which also maintain the important characteristics of the PBM operator. After that, we analyze a few enticing characteristics along with the particular applications of the suggested operators. Based on our suggested technique, we built an illustrated numerical example for the selection of competent research scientists to cope with MADM issues under the framework of PFVs. Finally, we contrast a few of our suggested methodologies with other prevailing methods to determine the feasibility and legitimacy of our suggested strategies.

Iterative learning control for differential inclusion systems with random fading channels by varying average technique.

The aim of this paper is to study iterative learning control for differential inclusion systems with random fading channels between the plant and the controller. In reality, the phenomenon of fading will inevitably occur in network transmission, which will greatly affect the tracking ability of output trajectory. This study discusses the impact of fading channel on tracking performance at the input and output sides, respectively. First, a set-valued mapping in a differential inclusion system with uncertainty is converted into a single-valued mapping by means of a Steiner-type selector. Then, to offset the effect of the fading channel and improve the tracking ability, a variable local average operator is constructed. The convergence of the learning control algorithm designed by the average operator is proved. The results show that the parameters in the varying local average operator can be adjusted to trade-off between the learning rate and the fading offset rate. Finally, the theoretical results are verified by numerical simulation of the switched reluctance motors.

A challenging surgical technique: single-port endoscopic-assisted radical mastectomy in retrograde way and immediate reconstruction using prosthesis implantation.

Endoscopic surgery for malignant breast tumors is becoming more and more popular and has been applied in the clinical setting. Single-port endoscopic-assisted radical mastectomy in retrograde way and immediate reconstruction using prosthesis implantation are rare. Therefore, this study described a new endoscopic technique for breast surgery. This is a cross-sectional study. A total of 12 patients with breast cancer diagnosed in the Department of Thyroid Breast Surgery of The Second Affiliated Hospital of Fujian Medical University from January 2019 to June 2022 were retrospectively selected and underwent axillary single-port endoscopic-assisted radical mastectomy in retrograde way and immediate reconstruction using prosthesis implantation. The average operation time was 190.25±25.40 min, the average blood loss was 86.25±33.11 mL, the average drainage volume was 207.92±65.90 mL 3 days after surgery, and the average hospital stay was 9.67±2.57 days. The follow-up period ranged from 11 to 21 months, with an average of 16.75 months. Medial paresthesia was present in only one patient, which decreased or disappeared after 3 months. No complications such as wound infection or limb dysfunction occurred in the remaining patients. Postoperative follow-up showed that 10 patients were very satisfied, one patient was relatively satisfied, and one patient was not satisfied. Preliminary data attested the feasibility and the safety of this approach. It can improve patient satisfaction compared with traditional modified radical mastectomy for suitable candidates. However, long-term data are needed to confirm the oncological safety and the esthetic stability of the result.

Application of the follower arm endoscope holder in type i tympanoplasty

Objective:To investigate the surgical outcomes and safety of the follower arm endoscope holder in assisting type Ⅰ tympanoplasty. Methods:The clinical data of 16 patients who underwent type Ⅰ tympanoplasty at the Department of Otorhinolaryngology, Peking Union Medical College Hospital, from November 2022 to September 2023 were retrospectively analyzed, among which 8 cases were operated by traditional otoscopy and 8 cases were operated by supported endoscopy.The surgical procedure was analyzed and the completion of supported endoscopic operation was observed, while the duration of the operation, the time consumed by the main steps, the frequency of wiping the lenses, the perioperative complications, and the improvement of the postoperative hearing were recorded and statistically analyzed. Results:Supporting endoscopic technology achieved real-time suction of bleeding, simultaneous traction and separation of tissues, precise removal of calcified spots on the inner side of the eardrum, trimming of the external auditory canal flap, stable separation of the handle of the malleus and the eardrum, and tensioned repositioning of the skin-cartilage flap. The average duration of surgery, time for external auditory canal flap preparation, and time for repositioning the skin-cartilage flap were reduced in the supporting endoscopic surgery group compared to the control group. The average lens wiping frequency was significantly lower in the supporting endoscopic surgery group compared to the control group. There was no statistically significant difference in postoperative hearing improvement between the two groups, and no infections or the need for secondary surgery due to eardrum re-perforation occurred postoperatively. Conclusion:Supported endoscopy technology realizes the need for endoscopic two-handed operation and convenient switching between one and two hands, accomplishes many operations that cannot be done by traditional endoscopic surgery, solves the problems of previous intraoperative one-handed operation and image instability, shortens the average operation time compared with traditional otoscopic surgery, and decreases the frequency of intraoperative wiping of the lens significantly compared with traditional otoscopic surgery, which is potentially worthwhile in terms of shortening the learning curve.

Performance analysis of the combination of a pitching wave surge energy converter and floating breakwaters

ABSTRACT Wave Energy Converters (WEC) captured the wave energy while Floating Breakwaters (FB) attenuated the wave energy to make a calm area for harbour activities. This study investigates the combination of a pitching Wave Energy Converter (WEC) and Floating Breakwater (FB) for simultaneous wave energy capture and wave attenuation in harbour areas. Three different configurations were analyzed in nine different hydrodynamic conditions to optimise the performance of both FB and WEC. The results show that the optimised combined device with rectangular draft has the most promising performance, with an average wave transmission operation of 38.8% and a captured power of 533.2 kW across all conditions. Longer arms of the device also lead to better performance. Additionally, wave steepness was found to be a significant factor in the performance of the combined device.

Q-Rung orthopair fuzzy dynamic aggregation operators with time sequence preference for dynamic decision-making.

The q-rung orthopair fuzzy set (q-ROPFS) is a kind of fuzzy framework that is capable of introducing significantly more fuzzy information than other fuzzy frameworks. The concept of combining information and aggregating it plays a significant part in the multi-criteria decision-making method. However, this new branch has recently attracted scholars from several domains. The goal of this study is to introduce some dynamic q-rung orthopair fuzzy aggregation operators (AOs) for solving multi-period decision-making issues in which all decision information is given by decision makers in the form of "q-rung orthopair fuzzy numbers" (q-ROPFNs) spanning diverse time periods. Einstein AOs are used to provide seamless information fusion, taking this advantage we proposed two new AOs namely, "dynamic q-rung orthopair fuzzy Einstein weighted averaging (DQROPFEWA) operator and dynamic q-rung orthopair fuzzy Einstein weighted geometric (DQROPFEWG) operator". Several attractive features of these AOs are addressed in depth. Additionally, we develop a method for addressing multi-period decision-making problems by using ideal solutions. To demonstrate the suggested approach's use, a numerical example is provided for calculating the impact of "coronavirus disease" 2019 (COVID-19) on everyday living. Finally, a comparison of the proposed and existing studies is performed to establish the efficacy of the proposed method. The given AOs and decision-making technique have broad use in real-world multi-stage decision analysis and dynamic decision analysis.

Comparison of laminoplasty and posterior segment fusion with laminoplasty and anterior segment fusion for treating acute extensional cervical spinal cord injury in pre-existing canal stenosis: a multicenter retrospective study

Background: Patients with pre-existing cervical spinal canal stenosis (CSCS) are more likely to suffer from an extensional spinal cord injury (SCI). However, the appropriate surgical alternatives for extended cervical SCIs in individuals with pre-existing CSCS remain unknown. The purpose of this study was to evaluate the clinical efficacies of laminoplasty and posterior short-segment fusion (PSF) with laminoplasty and anterior short-segment fusion (ASF) in the treatment of these patients. Methods: The clinical data of 258 patients from six spine centers were included in this retrospective study. Patients were divided into two different groups based on the surgical approach: laminoplasty and PSF (PSF group) and laminoplasty and ASF (ASF group). ASIA grades and JOA scores were obtained before and after surgery to assess neurological function. Results: There were 116 patients in the PSF group and 142 patients in the ASF group. The average operation time, intraoperative blood loss, and hospital stay were 188 min, 298 ml, and 7.6 days, respectively, in PSF group, compared to 245 min, 366 ml, and 10.4 days in PSF group, respectively. Complete decompression was achieved in all patients, and fusion was achieved 6 months after surgery. A post-operative computed tomography scan revealed that 39/464 (8.4%) screws had perforated, but no neurovascular complications occurred. Both surgical strategies improved the ASIA grade and there was no significant difference between the two groups (P = 0.926). The JOA score improved from 6.21 ± 1.85 to 10.90 ± 3.56 in the PSF group and from 6.45 ± 2.17 to 11.48 ± 3.62 in the ASF group, but at the final follow-up, there was no significant difference between the two groups (P = 0.134). The incidence of post-operative complications in the ASF group (24/142, 16.9%) (P = 0.043) was higher than that in the PSF group (6/116, 5.17%). Conclusions: Cervical laminoplasty combined with short-segment transpedicular screw fixation is a reliable option to treat extensional cervical SCIs in patients with CSCS. This surgical strategy is beneficial for achieving sufficient cervical spinal cord decompression, preserving cervical spine stability, and avoiding extra anterior cervical decompression and fusion, thereby reducing surgery time, intraoperative blood loss volume, post-operative complication rate, and length of hospital stay. Relevance for Patients: Cervical laminoplasty combined with posterior segmental fusion (PSF) reduces operative time, bleeding, and complications and achieves adequate spinal cord decompression in the treatment of extension cervical SCI in patients with CSCS.

A successful shift from thoracotomy to video-assisted thoracoscopic lobectomy for non-small cell lung cancer in a low-volume center.

Although video-assisted thoracoscopic surgery (VATS) lobectomy has become the gold standard for pulmonary resections of non-small-cell lung cancer (NSCLC), lobectomy is still performed via thoracotomy in many European and North American centres. VATS lobectomy was implemented overnight from thoracotomy in our low-volume centre in early 2019, after 1 senior surgeon undertook observership VATS-training overseas, and immediately became the mainstay of surgical treatment for NSCLC in Iceland. We aimed to investigate our short-term outcomes of VATS lobectomy. This was a retrospective study on all pulmonary resections for NSCLC in Iceland 2019-2022, especially focusing on VATS lobectomies, all at cTNM stage I or II. Data were retrieved from hospital charts, including information on perioperative complications, mortality, length of stay and operation time. Out of 204 pulmonary resections, mostly performed by a single senior cardiothoracic surgeon, 169 were lobectomies (82.9%) with 147 out of 169 (87.0%) being VATS lobectomies. Anterolateral thoracotomy was used in 34 cases (16.7%), including 22 lobectomies (64.7%), and 5 (3.4%) conversions from VATS lobectomy. The median postoperative stay for VATS lobectomy was 4 days and the average operating time decreased from 155 to 124 min between the first and last year of the study (P < 0.001). The rate of major and minor complications was 2.7% and 15.6% respectively. One year survival was 95.6% and all patients survived 30 days postoperatively. The implementation of VATS lobectomy has been successful in our small geographically isolated centre, serving a population of 390000. Although technically challenging, VATS lobectomy was implemented fast for most NSCLC cases, with short-term outcomes that are comparable to larger high-volume centres.

Anterior Full-endoscopic Single-port Double Transcorporeal Spinal Cord Decompression for Noncontinuous Two-segment Cervical Spondylotic Myelopathy: A Technical Note.

In clinical practice, noncontinuous two-segment spinal cord cervical spondylosis is a particular form of cervical degenerative disease. Traditional anterior open surgery frequently comes with severe trauma, risks, and debatable treatment options. This study aimed to describe for the first time a novel minimally invasive technique, namely, anterior full-endoscopic single-port double transcorporeal spinal cord decompression for the treatment of patients with noncontinuous two-segment cervical spondylotic myelopathy. From February 2020 to May 2021, five patients with noncontinuous two-segment cervical spondylotic myelopathy were treated with anterior full-endoscopic single-port double transcorporeal spinal cord decompression. Two bone channels were established by the trephine through the vertebral body oblique upward and downward to the herniated disc osteophyte complex, and the full-endoscopic system could decompress the spinal cord through the channels. All cases were followed up for over 2 years. The modified Japanese Orthopaedic Association (mJOA) score and visual analogue scale (VAS) score before and after operation and during follow-up were used to evaluate the clinical effectiveness. Radiological examinations, including CT and MRI, were utilized to evaluate the efficacy of spinal cord decompression and bone channel repair. All operations were successfully completed and the average operation time was 185 min, with no operation-related complications. Compared with the preoperative evaluation, the mJOA score and VAS score were improved at each time point after operation and follow-up. Postoperative CT and MRI scans showed that the intervertebral disc-osteophyte complex was removed through the vertebral bone passage, and the spinal cord was fully decompressed. After 24 months of follow-up, CT and MRI scans showed that the bone channel was almost repaired and healed. Anterior full-endoscopic single-port double transcorporeal spinal cord decompression is an effective minimally invasive technique for noncontinuous two-segment cervical spondylosis. It provides precise and satisfactory spinal cord decompression under endoscopic visualization with minimum trauma.

Risk Factors Assessment of Smart Supply Chain in Intelligent Manufacturing Services Using DEMATEL Method With LINGUISTIC q-ROF Information

With the rapid development of technological informatization, competition among enterprises is gradually transitioning from being "production-centered" to being "customer-centric," making service-oriented enterprises increasingly important. In addition to this, as global manufacturing advances in the process of intelligent manufacturing (IM), there is growing attention on the integration of manufacturing and the service industry, which has garnered the interest of numerous experts and scholars in the field of intelligent manufacturing services (IMS). This article combines intelligent manufacturing enterprises, intelligent service nodes, and consumers. Based on the background of intelligent manufacturing services, it collected risk factors within the smart supply chain (SSC) that connect different service nodes. These factors were evaluated by experts using a proposed linguistic q-rung orthopair fuzzy weighted averaging (Lq-ROFWA) operator in combination with the Decision-Making Trial and Evaluation Laboratory (DEMATEL) method for aggregation operations. Finally, we obtain the conclusions that the most influential factor affecting other risk factors is the inadequate identification of core customer needs; and the most important risk factor for smart supply chains oriented to intelligent manufacturing services is the leakage of customer information. After analyzing the relevant data, we will provide some theoretical and managerial implications for IM enterprises.

An interval AQI combination prediction model based on multiple data decomposition and information aggregation operator.

In this paper, an interval Air Quality Index (AQI) combination prediction model based on EEMD, VMD, and the weighted power average (WPA) operator is proposed. EEMD and VMD decompose complex AQI data effectively, while WPA operator reasonably aggregates the prediction results of different models. We validate the effectiveness of the proposed model using Shenzhen's daily interval AQI. Furthermore, three kinds of prediction models are compared with the proposed model to highlight its advantages from various perspectives. The results show that the introduction of data decomposition methods significantly improves the model's prediction accuracy, WPA operator further enhances the model's prediction capability, and the incorporation of EEMD and VMD enables the proposed model to have stronger feature extraction capabilities for complex time series. As a result, the model proposed in this paper demonstrates strong generalization ability and prediction accuracy, making it applicable not only for air quality prediction but also for other domains such as economics and environment.

Results of rib fixation in treating rib fractures at Dong Nai General Hospital

Introduction&#x0D; Rib fractures are a common complication of chest trauma. Fractured rib fixation is an effective method in treating complicated rib fractures, especially cases with flail chest. This study aimed to evaluate the results and effectiveness of rib fixation surgery at Dong Nai General Hospital.&#x0D; Methods&#x0D; This is an analytical descriptive cross-sectional study, conducted at Dong Nai general hospital from 2022 to 2023.&#x0D; Results&#x0D; The study included 34 patients, 79% were male, 75% of ruptures were caused by traffic accidents. Lesions on the left side are more common than the right side (55.9% vs 32.4%), posterior arch fractures are the most common (88.2%), 41.2% have flail chests. Concomitant injuries consisted of pneumothorax (70.6%), hemothorax (76.5%) and pulmonary contusion (64.7%). Average operating time was 115.1 ± 39.5 minutes, average postoperative time was 10.12 ± 3.15 days. There was 1 case of reoperation due to pleural blood clots. We assessed the pain relief effectiveness by comparing the pain scale before and after surgery, there was a significant difference (7.47 ± 0.75 vs 3.35 ± 0.81, p &lt; 0.001).&#x0D; Conclusion&#x0D; Rib fixation surgery is a safe and effective surgery in treating cases of complex rib fractures and flail chest. This can be implemented in provincial hospitals. Fixing more than 50% of broken ribs will help patients recover better and return to their daily work sooner.