bluuebunny/crossref_metadata_2025_split huggingface dataset:
Posttraumatic stress symptom trajectories of Chinese university students during the first eight months of the COVID-19 pandemic and their association with cognitive reappraisal, expressive suppression, and posttraumatic growth
Authors: Jiang Hong-juan , Nan Jiang , Lv Zhi-yue , Yang Juan 
Published: October 2022

Objective:
To identify the moderating effects of cognitive reappraisal (CR) and expressive suppression (ES) on the relationship between posttraumatic stress (PTS) symptoms and posttraumatic growth (PTG) in university students.

Methods:
The survey included 1 987 Chinese university students who completed questionnaires on PTS symptoms in February 2020, with three follow-up surveys at two-month intervals until August 2020. We assessed CR and ES at February 2020 and PTG at August 2020. Growth mixture modeling was used to classify the PTS symptom trajectories. Multinomial logistic regression was used to recognize the predictors of class membership. The relationships among PTS symptoms, CR, ES, and PTG were examined using multi-group path analysis.

Results:
Sex, SARS-CoV-2 infection of a family member or friend, number of siblings, CR, and ES were significantly associated with PTS symptoms. Three latent classes were identified: ‘Increasing PTS’ (n=205, 10.0%) who had rapid deterioration of PTS symptoms, ‘Moderate PTS’ (n=149, 8.0%) who had a high level of PTS symptoms at the beginning and slightly increasing, and ‘Persistent Minimal PTS’ (n=1 633, 82.0%), who had slow resolution of PTS symptoms over time. Male, SARS-CoV-2 infection of a family member or friend, and having a lower CR and a higher ES, were more likely to have ‘Increasing PTS’. PTS at February 2020 predicted PTG only in ‘Increasing PTS’ class, and both CR and ES had moderating effects on the conversion between them.

Conclusions:
Most students recovered from posttraumatic stress of COVID-19 pandemic, but a small proportion expeienced increasing PTS symptoms, and those with this condition may benefit from emotional regulation intervention.
Gas Chromatography–Mass Spectrometry Analysis of Anbarnesa Smoke and Its Antiviral Activity
Authors: Iravani Siavash , Sajjadi Seyed Ebrahim , Rafieian-Kopaei Mahmoud , Zolfaghari Behzad 
Published: October 2022

Background:
Anbarnesa is the female donkey dung typically collected after the labor and in early springtime.

Materials and Methods:
The chemical composition of the smoke collected from Anbarnesa was evaluated by gas chromatography–mass spectrometry (GC/MS), and its antiviral activity was analyzed based on 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT) assay.

Results:
As a result, twenty-two constituents representing 97.1% of the Anbarnesa smoke could be identified. Hexadecanoic acid (29.4%), cis-9-octadecenoic acid (17.7%), and octadecanoic acid (10.8%) were the smoke's main constituents, respectively. Antiviral activity was evaluated using MTT assay. The CC50 value of the compound on Hep2 and Verro cells was 2271.2 μg/mL and 5077.5 μg/mL, respectively. Furthermore, the 50% inhibitory concentration value on adenovirus and herpes simplex type-1 was 802.55 μg/mL and >5077.5, respectively.

Conclusions:
it was revealed that Anbarnesa was nontoxic in 1/64, 1/128, and 1/256 dilutions, while the toxicity was detected in 1/32 dilution after 72 h. In addition, in 1/8 and 1/16 dilutions, cell toxicity was identified in the first hour.
Anatomy in a Virtual Small-group Learning Setting
Authors: Mathew John Kandam Kulathu , Daniel Priyanka , Shanthi Pauline , Srivatsava Supraja , Charles Aby S. , Jacob Jenny , Gowri Mahasampath , Rabi Suganthy 
Published: October 2022

Background:
The benefits of small-group learning (SGL) in anatomy are well documented; however, the COVID-19 pandemic has seen the dynamics of SGL change in the online environment. In this study, we aimed to study the effects of the online platform and the content created on students' perception in the delivery of virtual SGL (VrSGL) in anatomy for 1-year medical students.

Materials and Methods:
VrSGL in anatomy was conducted for 6 weeks on Microsoft Teams as a meeting platform. Each group consisted of 10–12 1st-year medical students. Various aspects of VrSGL were analyzed with respect to technological factors, online content, online small-group teaching, and assessment modalities such as online viva, digital spotters, clinical cases, and short answer writing, through validated online feedback forms.

Results:
Of the 97 students (46 males and 51 females), 86% found the frequency of VrSGL optimal. There was a substantial positive correlation between connectivity issues and the quality of SGL. Majority of the students reported that VrSGL enabled them to learn anatomy well (72%), at their own pace (90%), and increased their accountability (85%). There was a significant positive correlation between the effectiveness of VrSGL sessions and quality of specimen demonstration videos (P < 0.001), assignments (P < 0.001), and online assessment (P < 0.001). A significant drawback of VrSGL was the lack of handling of cadaveric specimens as reported by 91% of the students.

Conclusion:
The most impactful factors on VrSGL were quality of specimen demonstration videos, frequency of the SGL sessions, assignments, and online assessment modalities.
Visual outcomes and complications of manual small-incision cataract surgery in patients with pseudoexfoliation
Authors: Shivkumar Chandrashekharan , Gadiwan Mobin , Rout Madhumita , Ghosh Aditi , Haroon Sherin , Ramakrishnan Rengappa 
Published: October 2022

Purpose:
Pseudoexfoliation is an age-related fibrillopathy characterized by the deposition of fibrillar material in the eye with an increased risk of complications during cataract surgery. Aim was to study visual outcomes and complications in patients with pseudoexfoliation undergoing manual small-incision cataract surgery (MSICS).

Methods:
Prospective observational study was performed on 152 patients with pseudoexfoliation above 50 years undergoing MSICS in a tertiary hospital from December 2016 to November 2017. Intraoperative and postoperative complications were documented with follow-up on postoperative day 1, 1st week, 1st month, and 3rd month.

Results:
Preoperative small pupil was noted in 49 eyes (32.2%), and 19 (12.5%) required intraoperative measures. Intraocular complications noted were zonular dialysis in five (3.3%), posterior capsular rupture in one (0.7%), and iridodialysis in one (0.7%). On postoperative day 1, the most common complication was corneal edema in 134 patients but clinically significant in only 23 (15.1%). Postoperative complications at 3 months were irregular pupil in 17 cases and decentered IOL in three cases. Intraocular pressure decreased with each visit [preoperative mean: 14.39 (±3.4) and 13.37 (±2.0) 12.53 (±1.4) mm Hg at 1 and 3 months, respectively]. There was a significant improvement in vision from the first day mean pinhole vision of 0.26 (±0.24) to mean best corrected visual acuity (BCVA) of 0.09 (±0.22) and 0.07 (±0.22) at 1 and 3 months, respectively. Mean endothelial cell loss was 193.16 (7.79%) and 266.01 (10.68%) at 1 and 3 months, respectively.

Conclusion:
Pseudoexfoliation has an increased risk of complications during cataract surgery. MSICS gives good outcomes in terms of visual recovery and postoperative outcomes.
Assessment of a high-fidelity, virtual reality-based, manual small-incision cataract surgery simulator
Authors: Nair Akshay Gopinathan , Ahiwalay Chetan , Bacchav Ashish E , Sheth Tejas , Lansingh Van Charles 
Published: October 2022

Purpose:
To establish the face and content validity of the HelpMeSee Eye Surgery Simulator – a virtual reality-based cataract surgery simulator for manual small-incision cataract surgery (MSICS).

Methods:
The face and content validity were assessed on the sclero-corneal tunnel construction course. A questionnaire with 11 questions focused on the visual realism, with resemblance to real life surgery, and the training value of the simulator was developed. Thirty-five experienced MSICS surgeons participated in the study. Responses were recorded using a seven-point scoring system.

Results:
Overall, 74.3% (26/35) of the respondents agreed that the overall visual representation of the eye and the instruments in the simulator were realistic. The task of injecting a visco-elastic through the paracentesis was reported to be the most visually realistic task with a mean score of 5.78 (SD: 1.09; range: 2–7). With regard to content validity, 77.1% (27/35) of the subjects felt agreed that the errors and complications represented throughout the entire tunnel construction module were similar to those encountered in real life; the task of entering the anterior chamber with the keratome had a mean score of 5.54 (SD: 0.98; range 1–7), being rated the highest in that aspect. Overall, 94.3% (33/35) of the subjects agreed that the simulator would be useful in developing hand–eye co-ordination. A similar number of 94.3% (33/35) agreed that based on their experience, they would recommend cataract surgical training on this simulator.

Conclusion:
The results suggest that the HelpMeSee Eye Surgery Simulator appears to have sufficient face and content validity for cataract surgical training.
Vaginal Birth after Cesarean Score for the Prediction of Successful Vaginal Birth after Cesarean Section – A Prospective Observational Study
Authors: Varun Neha , Nigam Aruna , Gupta Nidhi , Mazhari Farhat , Kashyap Varun 
Published: October 2022

Aim:
The aim of this study was to evaluate the demographic and obstetrical factors affecting the chances of vaginal birth after cesarean (VBAC) delivery and to develop a scoring system for the prediction of same.

Materials and Methods:
It was a prospective observational study done over a period of 1 year. A total of 100 term pregnant women with previous one lower-segment cesarean section (LSCS) fulfilling the criteria for a trial of labor were recruited for the study. As 23 patients refused to undergo trial of labor after cesarean (TOLAC) in early labor, 77 women formed the study group. Parameters assessed to predict successful TOLAC were maternal age, body mass index (BMI), history of prior vaginal delivery, interdelivery interval, indication of previous cesarean section, gestational age, type of labor, Bishop's score, and expected baby weight. Scores 0–2 were given, and the mean score obtained was correlated with the outcome of TOLAC.

Results:
Successful vaginal delivery occurred in 57.14% (44/77) of women. BMI ≤30 kg/m2 (P = 0.004), parity ≤ 3 (P = 0.005), Bishop's score >4 (P = 0.000), spontaneous onset of labor at the time of admission (P = 0.001), and nonrecurrent indication of previous LSCS (P = 0.029) were found to be significantly associated with the VBAC. The probability of having a successful VBAC was 83.3% and 100%, with the VBAC score value of more than 18 and 20, respectively.

Conclusion:
The mean VBAC score of 18–20 by the current scoring system is beneficial in predicting the outcome. This can help in counseling the patient, relatives as well as health professionals to undergo labor trial to decrease the cesarean section rate in the current era.
Safety and feasibility of thoracoscopic pericardial window in recurrent pericardial effusion – A single-centre experience
Authors: Pulle Mohan Venkatesh , Bansal Manish , Asaf Belal Bin , Puri Harsh Vardhan , Bishnoi Sukhram , Kumar Arvind 
Published: October 2022

Background:
This study aimed to report the surgical outcomes and also evaluating the safety and feasibility of thoracoscopic pericardial window (PW) for recurrent pericardial effusion.

Materials and Methods:
This was a retrospective analysis of eight cases of recurrent pericardial effusion, managed by thoracoscopic method in a tertiary-level thoracic surgery centre over 5 years. A detailed analysis of all perioperative variables, including complications, was carried out.

Results:
A total of eight patients underwent thoracoscopic PW during the study period. Males (87.5%) were predominant in the cohort. The median age was 54 years (range: 28–78 years). The median duration of symptoms was 2 months (range: 1–3 months). Tuberculosis (50%), malignancy (37.5%) and chronic kidney disease (12.5%) were the causes of recurrent effusion. All patients underwent thoracoscopic procedure with no conversions. The median operative time was 45 min (range: 40–70 min). The median effusion volume drained was 500 ± 100 ml. The median hospital stay was 3 days (range: 2–4 days) with no post-procedural complications. All the patients had complete resolution of symptoms. No recurrence was noted in the median follow-up period of 28 months (range: 6–60 months).

Conclusions:
Thoracoscopic PW is a safe and feasible minimally invasive option in the management of recurrent pericardial effusion in selected patients. Surgical fitness, haemodynamic status and estimated survival (in malignant effusion) should be considered before the procedure.
Risk factors for musculoskeletal problems in paddy field workers in northern iran
Authors: Sharifirad Mohsen , Poursaeed Alireza , Lashgarara Farhad , Mirdamadi Seyed Mehdi 
Published: October 2022

Background:
Paddy cultivation of rice requires substantial physical strength, perseverance and manual labor. During the manual harvesting of paddy rice in Iran, laborers are exposed to several work-related physical risks. Paddy cultivation has been reported as one of the most important causes of nonfatal occupational injuries and accidents among farmers. With the aim of identifying which parts of the musculoskeletal structure are mostly affected as a result of working on paddy rice fields, the present study aimed to investigate the potential risk factors for musculoskeletal problems in paddy field workers in Mazandaran Province, Iran.

Materials and Methods:
A cross-sectional, analytical study was conducted among paddy field workers via multistage sampling in 2019. Prior to the interviews based on the Nordic Musculoskeletal Questionnaire, the participants were briefed about the objectives of the research and their consent was obtained for voluntary participation. Through interviews, data were collected on demographics, agricultural utilization systems, use of paddy tractors, frequency of tiller and tractor use, injuries sustained during the daytime, and outcomes of injuries by paddy field working. Responses were obtained from 384 workers using structured interviews. The respondents were asked to describe problems and pain in their neck, shoulders, elbows, wrists and hands, upper back, hip and lower back. Logistic regression models were used to identify potential risk factors for musculoskeletal problems in specific body regions.

Results:
The most commonly reported ailments were back pain (n = 29; 7.6%), cardiovascular disease (n = 25, 6.5%) and hypertension (n = 22, 5.7%). The results of logistic regression analysis indicated that the odds of back and shoulder injuries was higher among workers who used tillers and combine harvesters (2.85 and 1.66), transplanting machine (3.68), and those who did not use safe footwear (7). Knee injury risk was higher among those who cultivated rice manually (odds ratio [OR] = 1.35) and who used safety footwear (OR = 1.93), but was lower among those who used tractors (OR = 0.53). There was a small increase in the risk of knee injury with age (OR = 1.03). Confirming earlier works, musculoskeletal problems were found to be highly prevalent among rice workers.

Conclusion:
Disorders in certain body regions could be explained by specific individual and work-related factors. While the prevalence of work-related injury was high, mostly due to ignorance and disregard for personal convenience of the workers, the findings call for improvements in mechanization and division of labor time and force. Another highlight is that social worth is not given sufficiently to the health of paddy field workers. These should be worked on in future research to find ways of allocating machinery and worth to the workers.
Erasmo en la biblioteca de Hernando Colón
Authors: Solana Pujalte Julián 
Published: October 2022

RESUMEN:
Hernando Colón (1488-1539), hijo del almirante Cristóbal Colón, intentó reunir una biblioteca universal, en la que las obras de Erasmo de Róterdam tenían un lugar privilegiado. Nos proponemos identificar bibliográficamente todas las ediciones y obras de Erasmo reunidas por Hernando Colón en su biblioteca. Para ello, analizamos los ejemplares conservados y, para los no conservados, que son la gran mayoría, los datos recogidos en los repertorios bibliográficos creados por el propio Hernando Colón. También ofrecemos una relación de las obras y temas que aparecen en las ediciones, así como de los precios, lugares de compra y fechas en que fueron adquiridas.

ABSTRACT: Hernando Colón (1488-1539), son of the Admiral Christopher Columbus, tried to assemble a universal library, in which Erasmus of Rotterdam’s works occupied a privileged place. We aim to identify bibliographically all the editions and works of Erasmus collected by Hernando Colón in his library. For this, we will analyse on one side, the few preserved copies and, on the other for the unpreserved ones, which are the great majority, the collected data in the bibliographical repertoires created by Hernando Colón himself. We also offer a list of the works and subjects appearing in the editions, as well as the prices, places of purchase and dates on which they were acquired.
Simulation of Fracking Fracture Cleaning as Oil Is Displaced from the Fracking Fracture Region
Authors: Смирнов Н. Н. , Никитин В. Ф. , Скрылева Е. И. , Фахретдинова Р. Р. 
Published: October 2022

в работе рассматривается процесс вытеснения нефти водой из пористого пласта. При этом около добывающей скважины содержится трещина гидроразрыва пласта. Известно, что, когда вязкая жидкость вытесняется менее вязкой, на фронте вытеснения развивается неустойчивость Саффмана–Тейлора: вытесняющая жидкость стремится прорваться сквозь слой вытесняемой, образуя в ней каналы — «вязкие пальцы». После прорыва такого канала к добывающей скважине или трещине гидроразрыва качество добываемой нефти (т.е. процентное содержание углеводорода в выкачиваемой жидкости) резко падает. В работе описаны особенности математического и численного моделирования процесса неустойчивого вытеснения вязкой жидкости из пористой среды. Вытеснение моделируется на основе закона Дарси с учётом капиллярных эффектов. Для построения относительных фазовых проницаемостей используется модель Брукса–Кори. Трещина гидроразрыва моделируется как область повышенной пористости и проницаемости. Рассматривается задача очистки трещины гидроразрыва пласта от жидкости гидроразыва: вокруг трещины моделируется область резервуара, заполненная жидкостью гидроразрыва, которая затем вытесняется нефтью, имеющей меньшую вязкость. Таким образом, процесс неустойчив и вытеснение происходит неравномерно, часть жидкости гидроразрыва может остаться внутри пласта.
this paper studies oil displacement from a porous reservoir with water. It is assumed there is a fracking fracture near the production well. It is known that as a viscous fluid is displaced by a less viscous fluid, the Saffman–Taylor instability occurs: the less viscous fluid breaks through the layer of the fluid being displaced, forming so-called “viscous fingers” (channels). After such a channel is ruptured and connected to a production well, the oil quality (i.e., the fraction of hydrocarbons in the production fluid) deteriorates dramatically. The paper describes the simulation and numerical modeling of viscous fluid unstable displacement from a porous medium. The displacement is modeled with Darcy’s law also considering capillary effects. The Brooks–Corey model is used to estimate the relative phase permeabilities. A fracking fracture is modeled as an area with elevated porosity and permeability. We consider the fracking fracture cleaning from the fracking fluid: a reservoir area filled with fracking fluid around the fracture is modeled; then the fluid is displaced with lower viscosity oil. The process is unstable and the displacement is uneven, so some of the fracturing fluid may remain inside the reservoir.
Efficient Paths for UAV-Based Gas Pipeline Leak Detection
Authors: Максудова С. А. , Гавриленко А. В. . 
Published: October 2022

в статье описан подход к созданию расчета траектории полета беспилотного летательного аппарата (БПЛА) для обнаружения утечек из магистралей. Основой нового подхода предлагается сделать систему симуляционного моделирования полета беспилотного летательного аппарата при решении задачи эффективного поиска утечки метана из магистрального трубопровода. Ключевой задачей является поиск оптимальных траекторий движения беспилотного летательного аппарата, решение которой существенно повысит вероятность обнаружения утечек с учетом ряда климатических факторов.Текущие результаты симуляционного моделирования показывают существенное различие вероятности обнаружения утечки с последующей локализацией облака утечки при использовании разработанного подхода от вероятности обнаружения утечки при подходе с параллельным облетом газопровода. Можно отметить, что для метеоусловий с силой ветра 0-2 балла параллельное движение БПЛА относительно трубопровода показывает достаточную эффективность, но плохо работает при силе ветра от 4 баллов. В таком случае применение разработанного подхода обладает более высокой эффективностью.В результате исследования получена симуляционная модель поиска эффективных траекторий движения БПЛА. По результатам вычислительных экспериментов можно сделать вывод о достаточной эффективности выбранной модели, подхода и алгоритмов. Естественно, оператор БПЛА не может точно указать или даже предсказать место утечки метана, но предварительный анализ и ситуационное моделирование позволит использовать ресурс БПЛА с большей эффективностью. Количество учитываемых параметров по определению траектории движения может как увеличиться, так и уменьшиться по результатам масштабных симуляций и в последующем — натурных экспериментов.
the study proposes an approach to generating unmanned aerial vehicle (UAV) paths for gas pipeline leak detection applications. The new approach uses a UAV simulation tool to optimize the search for methane leaks in pipelines. The goal is to find optimal UAV paths that maximize the probability of leak detection in the given climatic conditions.The simulation results show a significant difference in leak detection and gas cloud localization probabilities achieved with the proposed flight path and a pipeline-parallel UAV flight path. Under 0...2 force wind, the UAV path parallel to the pipeline gives sufficient efficiency, but it is a poor strategy in wind forces of 4 points or more. In this case, the proposed approach is more efficient.We created a simulation model for finding efficient UAV flight paths. The computational experiments confirmed the proposed model, approach and algorithms are sufficiently efficient. The UAV operator is unable to provide or even guess the exact location of a methane leak. Still, preliminary analysis and situation modeling improve UAV utilization. The number of variables considered when generating a flight path can either increase or decrease based on the results of large-scale simulations and field experiments.