bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mathematical modeling of the movement of a tracked vehicle using the RecurDyn application package
Authors: Poddubnyy Vladimir I. 
Published: April 2022

Mathematical modeling of motion allows at the design stage to assess the impact of the design and operational parameters of tracked vehicles on their performance, determine the qualitative and quantitative performance indicators, and consider controllability issues. The use of the RecurDyn application with a library of specialized extension packages allows to obtain a mathematical model of the vehicle, taking into account its design with a specified degree of detail. A model of a tracked vehicle with a torsion bar suspension was developed using the Professional extension packs and the Track (HM) library of the Toolkit extension package. It allows simulating standard maneuvers on various supporting surfaces. The CoLink extension package implements a control model that ensures the movement of the tracked vehicle along a given trajectory. The basis for the development of the motion control model is a technique based on predicting the position of the vehicle after a given forecast time. As a control, the speed difference between the leading and lagging tracks was adopted. It ensures movement along a given trajectory. The difference in speeds ∆V is determined using PID regulation by the values of the lateral deviation of the vehicle from the given trajectory and the angular deviation of the longitudinal axis of the vehicle from the tangent to the trajectory in the predicted position. The control model allows to simulate the movement of a vehicle with a differential and a planetary rotation mechanism. The simulation of movement along a circular trajectory and the snake maneuver was carried out. The movement of a tracked vehicle with a planetary steering mechanism on a solid support surface with a friction 0.7 coefficient was simulated.
Based on the simulation results, a conclusion about the adequacy of the mathematical model of the tracked vehicle and the performance of the presented motion control model was made. The developed model allows simulating various maneuvers of a tracked vehicle to assess the stability of movement and controllability, to determine the rational parameters of the tracked mover based on the results of simulation of movement at various heights of irregularities and speeds of movement.
Development of a methodology for rationing the route fuel consumption of the LIAZ-5256.57 bus in operation
Authors: Boloyev Peter A. , Petrov Nikolay V. , Skrybykin Philip A. 
Published: April 2022

The article analyzes suburban bus transportation on specific routes in the Republic of Sakha (Yakutia). Route No. 101 Yakutsk Tabaga with a total length of 31 km was chosen for the experimental study. The timetable for the movement of buses of the municipal unitary enterprise Yakutsk Passenger Transport Enterprise (YAPAK) on the suburban route is given. The main technical data of the LiAZ-5256.57 bus were studied. In accordance with international rules for buses, the determination of the amount of fuel consumption and specific emissions of normalized toxic components is carried out using a driving cycle on working drums. A technique to calculate fuel consumption is used for modeling engine performance indicators that provide a change in the traction and speed characteristics of the vehicle in accordance with the established driving cycle. The calculated fuel consumption results for the NEDC driving cycle are compared with experimental data. As a comparison of calculated and theoretical data on fuel consumption with practical data, a Cummins type CG 250 engine is considered. The internal combustion engine is installed on the LiAZ-5256.57 bus. Experimental data on the fuel consumption of this bus per 100 kilometers (km) showed 49 nm3, and theoretical calculations of the fuel consumption of the bus per 100 km using the proposed method showed 48 nm3.
Thus, to assess the traction and speed characteristics of the bus, the proposed combined method can be used, which makes it possible to obtain a calculation of fuel consumption that is closer to the experimental data on the driving cycle. Based on the initial data of the vehicle, the effective performance of the engine is evaluated. A computational method for modeling tests and an experimental driving cycle for motor vehicles with a total mass of more than five tons are proposed.
Education reform in Kazakhstan: Ways of teacher assessment literacy development
Authors: Shmigirilova I. B. , Rvanova A. S. , Tadzhigitov A. A. , Kopnova O. L. 
Published: April 2022

Introduction. The reform of many national education systems is associated with a growing focus on assessment as the dominant aspect of the modern educational process. One of the directions of the reform of the Kazakh school system is focused on the transition to criteria-based assessment of the educational achievements of schoolchildren. In this regard, for Kazakhstan, as well as for many countries of the world, the problem of developing evaluative literacy of both practising teachers and today’s students studying in pedagogical educational programmes has become especially acute.Aim. The aim of the current research is to reveal the essential characteristics of assessment literacy as an important quality of a modern teacher, to actualise the problem of its development in the situation of reforming the school education system, to outline possible directions for solving this problem.Methodology and research methods. The present research is based on the complex use of theoretical and empirical methods. The theoretical research was carried out using a comparative aspect analysis of scientific and methodological sources and normative documents on the problem of the formation of teacher assessment literacy. Empirical data were obtained when conducting a survey of school teachers, systematising and summarising its results.Results and scientific novelty. In the course of theoretical analysis, the authors identified the factors, which actualise the problem of teacher assessment literacy development; its main characteristics are summarised, which made it possible for the authors to formulate the definition of this concept. The results of the survey of school teachers demonstrated that shortterm professional development courses for teachers provide a knowledge component of their assessment literacy, but do not solve the problem of developing practical skills, which are in demand in the course of assessment activities. The development of teacher assessment literacy to the behavioural level is a multi-stage and complex process that involves not only theoretical training, but also the independent design of one’s own assessment activity, taking into account the subject characteristics and other contexts accompanying educational practice. Particular attention should be paid to the formation and development of assessment literacy of future teachers during their studies at the university. An integrated approach to solving this problem should provide: the formation of deep knowledge in the chosen subject area, participation in various assessment practices within the framework of methodological courses and pedagogical practices, interaction with practising teachers.The practical significance of the study lies in the recommendations that determine possible directions for solving the problem of developing school teacher assessment literacy in the context of reforming the educational assessment system.
BODY SIZE TRENDS IN TRIGONIIDA BIVALVES FROM THE MESOZOIC KUTCH, INDIA
Authors: SARKAR DEBATTAM , PAUL SHUBHABRATA , SAHA RANITA , BARDHAN SUBHENDU , RUDRA PURBASHA 
Published: April 2022

ABSTRACTAlthough empirical testing of Cope's rule, the tendency for size to increase over time, has received significant attention in the last few decades, there is no consensus about the applicability of this rule across taxonomic levels. In the present study, we investigate the distribution of body size of Trigoniida bivalves, at order-, family-, genus- and species-level, through the Middle Jurassic and Early Cretaceous of the Kutch region in India. Our data suggest that the body size of Trigoniida bivalves did not vary significantly in the Middle–Late Jurassic, followed by an increase after the Jurassic–Cretaceous mass extinction boundary and a reduction in the late Early Cretaceous. Changes in relative sea-level and associated sedimentary facies composition generally exhibit poor correlation with the overall stasis, or no net body size change, displayed by Trigoniida bivalves. Body-size analysis across taxonomic hierarchy reveals that order-level trends are not a simple aggregation of trends at lower taxon levels. An important observation of our study is the body-size increase immediately in the aftermath of the Jurassic– Cretaceous mass extinction, a deviation from the general observation that size reduction occurs in post-extinction communities. We argue that this increase may be result of both ecological competition and evolutionary faunal turnover.
Quantum noise stream cipher based on optical digital to analog conversion
Authors: Li Zhao-Yun , Zhang Yun-Kun , Pang Hai-Yue , Luo Qing-Song , Zhang Xin , Tao Zhi-Yong , Fan Ya-Xian 
Published: April 2022

Abstract

An implementation method of quantum noise stream cipher with optical digital to analog converter is proposed and demonstrated. The proof-of-principle experiment for quantum noise stream cipher system has been designed to transmit 16-level signal with the baud rate of 10 Gbps by means of 4-bit port. So, the encrypted signal is obtained by weighting the intensities of multiple optical wavelengths and summing them according to plaintext signal and secret key, that makes the adjacent level of the signals are covered with the fluctuation of quantum noise. Experimental results show that the legitimate user can successfully recover the QNSC signal by the decryption with a very low probability of error with 2.19×10–11. However, the eavesdropper cannot distinguish the distinct bits due to the disturbance of quantum noise, which it is giving a very high probability of error with 0.425 due to the disturbance of quantum noise.
Clinical efficacy of catheter-directed thrombolysis combined with anticoagulation(CDT+AC) vs anticoagulation alone(AC)in patients with submassive pulmonary embolism: a patient pooled meta-analysis of clinical trials
Authors: bing Sun , ruirui Chen , Rui Du , yun Xu , xutong Zhang , chiyao Wang 
Published: April 2022

Abstract
Background To compare the clinical efficacy and safety of catheter-directed thrombolysis（CDT）with anticoagulation vs anticoagulation alone（AC）in patients with submassive pulmonary embolism（sPE）.METHODS Included in this analysis were patients with submassive pulmonary embolism. Two researchers independently screened the literature, submitted the data and cross-checked them. In case of differences, the third researcher would assist to make the judgment. RevMan5.4 was used for Meta analysis. Odds ratio (OR) was used as outcome index for dichotomous variables, and weighted mean difference (WMD) was used as outcome index for continuous variables. Point valuation/95%CI was given for each indicator. With P > 0.05 and I2 < 0.5, the fixed effect model was used for Meta analysis. The primary outcomes were all-cause death at 30 days and 1 year. Secondary outcomes were total bleeding and major bleeding.RESULTS A total of 7 articles and 874 patients were included in this study. 323 patients were in the CDT+AC group and 551 patients were in the AC group. 30 days and 1 year mortality were lower in the CDT+AC group compared to AC group [（OR：0.35，95%CI：0.14-0.88，P=0.03，I2=0%),（OR：0.36，95%CI：0.18-0.71，P=0.004，I2=0%）]. In subgroup analysis 30 days and 1 year mortality were lower in the USAT+AC group compared to AC group[（OR：0.28，95%CI：0.08-0.98，P=0.05，I2=0%),（OR：0.32，95%CI：0.11-0.95，P=0.04，I2=0%）]. The incidence of total bleeding was lower in AC group compared to CDT+AC/USAT+AC group. Major bleeding were similar between them.Conclusion Results thus confirmed that CDT reduced 30-days and 1-year all-cause mortality in patients with sPE compared to anticoagulation alone (AC). Nonetheless, a higher risk of bleeding was associated with the CDT group.
Kounis Syndrome with Pericarditis Epistenocardica: a case report
Authors: Dural İbrahim Etem , Uzun Mehmet Hakan , Ertuğral Nuran Özçiftçi 
Published: April 2022

Abstract
Background
Kounis syndrome is a rare cause of myocardial infarction. Pericarditis, which is one of the complications of myocardial infarction, can also develop after kounis syndrome.
Case Presentation
A 19 year old female patient with no known previous disease history, referred to emergency department with anaphylactic shock after bee stinging. After clinical stabilisation, further investigation showed ECG changes and elevated high sensitive troponin T (hs-troponin T) levels, which led to the diagnosis of Kounis Syndrome and the patient was referred to the Cardiology Intensive Care Unit. During the diagnostic work-up and patient follow-up's, a new onset chest pain led to the diagnosis of Pericarditis Epistenocardica.
Conclusions
This case report discusses the clinical case and current medical management and treatment of Kounis Syndrome and Pericarditis epistenocardica.
Managing quality improvement and risks in the hospital Emergency Department: a systematic literature review
Authors: Giovina Pasca Maria , Roberta Guglielmetti Mugion , Laura Di Pietro , Olimpia Martucci , Francesca Renzi Maria 
Published: April 2022

Abstract
The research aims to understand the current state of knowledge on risk, quality improvement and resilience in the healthcare field, namely in hospitals emergency departments, in light of the Covid-19 pandemic. There is the need to valorize the emergency department role that has been underestimated even if it represents the most important linkage point between territorial healthcare assistance and hospital management. The study adopted a systematic literature review approach to summarize existing evidence on managing quality improvement and risks in the healthcare field. Following the inclusion criteria, a total of 59 articles published between 2011 and 2019 were detected. The authors analyzed the bibliometric characteristics and classified the works into three main themes and four sub-themes (Service quality, composed of Effectiveness of quality improvement strategies and Medical scribes; and Risk management, including Handoff and Crowding issues; Resilience). A cross-analysis of the themes highlights future research opportunities and managerial implications for professionals and academics and the development of interventions to enhance the value creation process in the healthcare ecosystem. This research emphasizes the need to invest in emergency department improvement for pursuing the patients’ wellbeing.
Oligometastasis of Breast Cancer to the Lung: Prospective Cohort Study of Treatment Strategies (SBP-06)
Authors: Maeda Reina , Shien Tadahiko , Takahashi Mina , Kawada Kengo , Kajiwara Yukiko , Kubo Shinichiro , Takabatake Daisuke , Ohtani Shoichiro , Matsuoka Kinya , Hikino Hajime , Ogasawara Yutaka , Taira Naruto , Ohsumi Shozo , Ikeda Masahiko , Doihara Hiroyoshi 
Published: April 2022

Abstract
BackgroundPrevious study results have suggested that local treatment of isolated lung metastases, may be beneficial and increase overall survival (OS) in highly selected patients. However, these were all retrospective studies. We designed this prospective cohort study to investigate the therapeutic and diagnostic clinical situation of oligometastatic breast cancer in the lung, as well as the prognosis outcomes of patients with this disease.MethodsWe enrolled patients with less than 3 lung nodules which suspected as oligometastases after curative breast cancer surgery. Treatments, including local and systemic therapy, were choice by each physician. The primary outcome was OS of patients with oligometastasis of breast cancer detected in the lung and secondary outcomes were the efficacy and safety of surgery for lung oligometastases. The study was in accordance with the relevant national/institutional guidelinesResultsBetween May 2015 and May 2019, 14 patients were enrolled at 5 centers. Resection of lung nodules (metastasectomy) was performed 11 (78.6%) of 14 patients and one was diagnosed with primary lung cancer. Metastasectomy were all performed employing video-assisted thoracic surgery (VATS) and achieved complete resection without perioperative complication. Systemic therapies such as chemotherapy, as well as endocrine and molecular target therapies were administered to all patients except one who declined all treatments offered. The respective 3-year and 5-year OS rates of patients with lung oligometastases were 91.6% and 81.5%. Progression events occurred in 6 patients: 3 (30%) with and 3 (100%) without metastasectomy. Whereas 2 of 10 patients with metastasectomy survived 5 years without progression, progression events occurred all patients without metastasectomy within 1 year.ConclusionLung metastasectomy was worthwhile as a diagnostic evaluation and possibly provide long-term benefit in some patients. Phase 3 trials might be required to provide definitive evidence and to provide criteria for selecting patients. Trial registrationThis study was approved by the Institutional Review Board (IRB No. 960) of the Okayama University Hospital, Okayama, Japan, and was registered in the clinical trials database UMIN (UMIN000016999) on 31 March 2015. Written informed consent was obtained from all enrolled patients.
The Prehospital to Emergency Department Hand Over Model (PEDHOM): a conceptual model addressing content, process, and communication in prehospital to Emergency Department handover
Authors: Makkink Andrew William , Stein Christopher Owen Alexander , Bruijns Stevan Raynier 
Published: April 2022

Abstract
Background: Patient handover is closely linked to patient safety. As the first interaction with the healthcare system, emergency department handovers are critically significant. Addressing content, process and communication aspects of handover has the potential to improve patient safety and decrease the incidence of adverse events. Methods: We used a sequential explanatory mixed methods study to gather data in Study One (quantitative) and Study Two (qualitative). Study One gathered questionnaires from 175 prehospital and 50 emergency department personnel. Study Two drew from the data in Study One and involved conducting face-to-face, semi-structured interviews from 15 prehospital and 15 emergency department personnel. Results: Study One provided quantitative data related to the importance of variables included in handover content and additional information related to handover within the ED from the perspectives of both prehospital and ED personnel. Study Two provided qualitative data on experiences and perceptions related to handover within the ED from the perspectives of both prehospital and ED personnel. These data were used to develop the Prehospital to Emergency Department Hand Over Model (PEDHOM) conceptual model that was synthesized from the findings. Conclusion: This PEDHOM addresses some of the content, process and communication aspects in prehospital to ED handover. The PEDHOM identifies barriers to effective ED handover and postulates potential solutions or strategies to addressing these barriers. The PEDHOM has potential for implementation in the ED and in healthcare environments other than the ED where interprofessional handover is practiced.
Impact of maintenance contract on the downtime of equipment
Authors: Gupta Anant , Madaan Nirupam , Lathwal Amit 
Published: April 2022

Abstract
IntroductionThe main objective of equipment maintenance is uninterrupted operation of services in the hospital. In view of all these reasons it is required to study the effect of various types of maintenance contracts (warranty, AMC, CMC) on the medical equipment downtime.MethodologyThe period of retrospective data collection and analysis was from April 2014 to March 2016 (two years) and the period of prospective data collection was from April 2016 to September 2016 (six months). The study was conducted in Machinery & equipment store. Prospective data collection (April 2016 to September 2016) was done for a period of 6 months in each of the selected wards through weekly ward visits and additional visits were made at the time of breakdown of the selected equipment. ResultsThe average downtime for all the equipment, during the entire study period was 8.78%. On an average, downtime percentage was 16.2% for equipment under warranty, 10% for equipment with CMC and 50% for equipment under no service contract. The downtime percentage was significantly more in no service contract period as compared to the equipment which were in the CMC and warranty period. But the downtime period did not vary significantly for the equipmentin warranty from that in CMC. Conclusion and recommendationsIt is recommended that Computerized Maintenance Management Systems (CMMS) database applicationsmay be used. It is recommended to suitably modify the terms and conditions of the tender and CMC contract so that they do not cross the life term of an equipment alongwith having a single contact with both warranty and CMC.
Acute effect of Melon Manis Terengganu peel powder on glycemic response, perceived satiety, and food intake: a randomized, placebo-controlled crossover trial in adults at risk of type 2 diabetes
Authors: Ong Ying Qian , Harith Sakinah , Shahril Mohd Razif , Shahidan Norshazila , Hapidin Hermizi 
Published: April 2022

Abstract
Background: Melon Manis Terengganu (MMT) peel has a high dietary fiber content, but there is no data examining its health benefits in adults at risk of type 2 diabetes. The objective of the study was to evaluate whether consumption of MMT peel powder improves glycemic response, satiety, and food intake in adults at risk of type 2 diabetes.Methods: An open-label, randomized, placebo-controlled, crossover design trial was conducted among adults (n = 30, ages 18–59 y) at risk of type 2 diabetes. They consumed Formulation 3 (formulated MMT peel powder) [A] and control (glucose) [B] with study breakfast based on randomly assigned treatment sequences (AB, BA) established by Research Randomizer (www.randomizer.org). Capillary blood glucose and perceived satiety were determined at baseline (0 min), 30, 60, 90 and 120 min, followed by a post-intervention food intake measurement.Results: Respondents (n = 30) who consumed Formulation 3 had a significantly lower blood glucose 2-hour incremental area under the curve (iAUC) of 134.7 ± 44.5 mmol/L*min and maximum concentration (CMax) of 7.2 ± 1.1 mmol/L with relative reduction of 26.8% and 13.3% respectively, when compared with control (p < 0.001). However, the two-way repeated measures analysis of covariance (ANCOVA) revealed no significant time and group*time effects in blood glucose levels after controlling confounding factors (p > 0.05). Besides, significantly lower perceived satiety, energy and fat intake as well as higher fiber intake were also observed in the intervention group compared with the placebo group (p < 0.05). There were no marked side effects associated with the ingestion of the test products.Conclusions: Short-term consumption of formulated MMT peel powder may have a positive impact on glycemic response (iAUC and CMax), satiety, and food intake in adults at risk of type 2 diabetes with the potential to be utilized as a functional beverage. Medium-to long-term clinical trial is warranted to determine whether taking this formulated MMT peel powder on a daily basis has an influence on health outcomes. Trial registration: ClinicalTrials.gov Identifier: NCT05298111. Registered 28/03/2022.