bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Effect of a Flipped Classroom Didactic Curriculum on Orthopaedic In-Training Examination Scores for a Resident Cohort
Authors: Cherney Steven M. , Barnes C. Lowry , Blasier R. Dale , Bracey John W. , Montgomery Corey O. 
Published: October 2024

Introduction:
There is little research on the efficacy of flipped classroom (FC) models of learning in formal orthopaedic didactic curricula. The primary aim of this study was to compare resident Orthopaedic In-Training Examination (OITE) scores before and after implementation of an FC curriculum at a single academic institution.

Methods:
An FC didactic model consisting of 3 hour-long weekly sessions focusing on highly tested topics was implemented for the start of the 2021 to 2022 academic year. The curriculum was based on the Orthobullets PASS curriculum. The OITE scores were measured 3 years before and 3 years after the implementation of the novel curriculum.

Results:
Mean in-training scores as a program against national peers increased from the 29th percentile precurriculum implementation to 75th percentile postcurriculum implementation (p < 0.001).

Conclusion:
At a single academic institution, average OITE scores increased significantly after implementation of an FC model. Consideration should be given to changing traditional lecture-based curricula to models that more effectively engage resident learners.

Level of Evidence:

Level III: Retrospective Cohort Study. See Instructions for Authors for a complete description of levels of evidence.
Dinuclear titanium on TS-1 for propylene epoxidation at alkaline condition
Authors: Kwak Ja Hun , Kim Kwang Hyun , Kim Taehyeon , Kim Haneul , Lim June Sung , Ko Myohwa , Jin Wonjoo , Seo Kwanyong , Joo Sang Hoon , Cho Sung June , Jang Ji-Wook 
Published: October 2024

Abstract

Propylene epoxidation is an important industrial process, but current techniques have shown adverse environmental impacts.1-3 Recently, the eco-friendly photo-electro-heterogeneous catalytic production of propylene oxide (PO) has been reported using in situ generated H2O2 and a zeolite catalyst (titanium silicalite-1, TS-1).4 However, the PO production rate was too low due to the low solar H2O2 production rate. In this work, we recorded high solar H2O2 production rate required for the practical PO production for first time. However, TS-1 exhibits low activity in the presence of alkali metal ions under alkaline condition, which are crucial for efficient solar H2O2 production. Herein, we hydrothermally synthesize a TS-1 catalyst containing dinuclear titanium sites and Ti–O–Ti bonds and show that it efficiently promotes propylene epoxidation under alkaline conditions (pH 11). The results of density functional theory (DFT) calculations and instrumental analyses reveal that the dinuclear titanium sites are active for propylene epoxidation and synergistically interact with alkali metals ions to prevent hydrolysis of PO to propylene glycol. Thus, our work demonstrates the superiority of the developed catalytic system over its predecessors, paving the way for the use of TS-1 in other partial oxidation reactions and the development of novel environmentally benign chemical processes.
The Identification of Guessing Patterns in Progress Testing as a Machine Learning Classification Problem
Authors: Atanet Iván Roselló , Sehy Victoria , Sieg Miriam , März Maren 
Published: October 2024

Abstract

The detection of guessing patterns in low-stakes progress testing could naturally be understood as a statistical classification problem where test takers are assigned to groups according to probabilities given by a machine learning model. However, the relevant literature on this topic does not include many examples where this approach is discussed; to date, the strategies applied to tackle this problem have been mostly based either on rapid response counting or the detection of unusual answer patterns.
On the basis of 14,897 participations in the Progress Test Medizin test – which takes place twice a year since 1999 in selected medical schools of Germany, Austria and Switzerland - we formulated the identification of guessing patterns as a binary classification problem. Next, we compared the performance of a logistic regression algorithm in this setup to that of the nonparametric person-fit indices included in R´s PerFit package. Finally, we determined probability thresholds based on the values of the logistic regression functions obtained from the algorithm.
The logistic regression algorithm included in Python´s Scikit-Learn reached ROC-AUC scores of 0.886 to 0.903 depending on the dataset, while the 11 person-fit indices analysed returned ROC-AUC scores of 0.548 to 0.761.
Datasets based on aggregate scores yielded better results than those were the sets of answers to every item were considered as individual features. The best results were reached with a feature set containing only two parameters (self-monitoring accuracy and number of answered questions); considering the amount of time spent on the test did not lead to any performance improvement.
Based on the values of the logistic regression function generated by the applied algorithm, it is possible to establish thresholds above which there is at least a 90% chance of having guessed most answers.
In this setting, logistic regression clearly outperformed non-parametric person-fit indices in the task of identifying guessing patterns. We attribute this result to the greater flexibility of machine learning methods, which makes them more adaptable to diverse test environments than person-fit indices.
Effect of controlled drying on the properties of cellulose ester films synthesized in Novel Ionic Liquid [mTBNH][OAc]
Authors: Kattamanchi Tanuj , Kallakas Heikko , Tarasova Elvira , Alao Percy Festus , Mere Arvo , Krumme Andres , Kers Jaan 
Published: October 2024

Abstract

Cellulose, as a sustainable raw material, holds a promising future as a thermoplastic material. This work focused on fabricating cellulose ester thin films by using both controlled vacuum oven drying and conventional oven drying by the evaporation induced phase separation method (EIPS). A novel distillable ionic liquid (IL) 5-Methyl-1,5,7-triaza-bicyclo- [4.3.0]non-6-enium acetate [mTBNH][OAc]with high dissolving capability of cellulose along with dimethylsulfoxide (DMSO) as a co-solvent are used. The drying methods were compared to investigate their influence on the Cellulose ester films morphological and wettability properties. Based on the results, with increasing the drying rate in the vacuum oven the films have a smoother surface (with CP having 2.14nm RMS value) than the other samples, also indicating higher contact angles of 124 for CP under vacuum drying conditions with denser films.
Mapping benthic biodiversity variables of coral reefs using spatial interpolation of circular plot sampling
Authors: Broudic Léo , Pinault Mathieu , Claud Romain , Bajjouk Touria , Rungassamy Tévamie , Nikolic Natacha , Crochelet Estelle , Mazé Camille , Bergerot Benjamin 
Published: October 2024

Abstract

The spatialisation of essential biodiversity variables is a crucial step in assessing the health of coral reefs. However, few studies propose a comprehensive method for a large-scale assessment, such as coral reefs around Reunion Island. This requires a trade-off between the area, the study time, and the number of sampled stations needed to achieve spatial interpolations at an acceptable human and financial cost. We estimated nine sighting benthic biodiversity variables through visual assessments conducted in 2,599 circular plots per 100 m², distributed in two zones (reef flat, outer slope) and 14 habitats present across four sites (fringing reefs) on Reunion Island. A stratified sampling plan that is homogeneous within zones and differentiate between zones is appropriate, particularly for the study of a reef at several spatial scales (site, zone, habitat). We first demonstrated that the sampling effort enabled statistical discrimination and spatialisation of the nine benthic biodiversity variables within all the landscape units. Subsequently, we investigated the reliability limits of the spatial models by reducing the sampling effort of an increasing proportion of stations using bootstrap resampling. Results showed that station densities of 0.5 to 1.2 stations.ha− 1 (outer slopes) and 1.5 to 4.3 stations.ha− 1 (reef flats) provide very satisfactory to excellent spatialisation of the essential biodiversity variables. Depending on the objectives, the resolution and the available resources, our method allows an estimation of the trade-off between required information for mapping benthic biodiversity variables of coral reefs using spatial interpolation and sampling effort.
An innovative approach to the multidisciplinary treatment of uninsured breast cancer patients
Authors: Nodora Jesse N. , Gilbert Jacqueline A. , Martinez Maria Elena , Arslan Waqas , Reyes Trevin , Dover John A. , Ramos Gilbert A. , Komenaka Ian G. , Hitchon Hebert D , Komenaka Ian K. 
Published: October 2024

Abstract

Purpose
A significant proportion of many populations remain uninsured. The aim of the study was to assess differences in breast cancer outcomes before and after the implementation of an innovative approach to the multidisciplinary treatment of uninsured breast cancer patients.
Methods
Retrospective review was performed of patients seen at a safety net hospital from January 2000 to December 2020. Beginning July 2006 an innovative approach was implemented to lower patient costs to facilitate care of uninsured patients.
Results
The study included 1,797 patients, 661 patients before the changes (BCS), 1,136 patients after implementation of the new cost saving approach (ACS). The mean age was 53 years. The majority were uninsured (56%) or insured by Medicaid (31%). Only 18% underwent screening mammography.
The ACS group had a higher rate of breast conservation (75% vs 47%, p < 0.001). A higher percentage of the ACS group received adjuvant therapy: Chemotherapy (91% vs 70%, p < 0.001), Radiation therapy (91% vs 70%, p < 0.001), and initiated endocrine therapy (87% vs 67%, p < 0.001). After follow up of 8 years, these changes resulted in lower ipsilateral breast tumor recurrence (2% vs 16%, p < 0.001) and chest wall recurrence (5% versus 8%) and improvement in overall survival (90% vs 81%, p < 0.001).
Conclusion
Peer reviewed literature is replete of studies documenting disparities in breast cancer treatment. The current study describes a successful cost limiting method which takes advantage of existing financial assistance programs to improve care in uninsured patients.
The resonant Raman response of confined carbyne is solely driven by anharmonic interactions
Authors: Parth Emil , Corradini Andrea , Cui Weili , Romanin Davide , Schuster Christin , Freytag Clara , Shi Lei , Yanagi Kazuhiro , Calandra Matteo , Pichler Thomas 
Published: October 2024

Abstract

The resonant Raman response is due to electronic and vibrational excitations.
Interestingly, the resonant Raman fingerprint of confined carbyne is highly unconventional and comes concomitant to several new features which can neither be assigned to the hosting tube, nor to the linear carbon chain a.k.a carbyne. This identifies the tube-chain system as a true hybrid structure in which the spectrum is usually driven by strong modifications in the electronic excitations via charge transfer. Surprisingly, we show that the electronic structure results from those of the two isolated systems and the large spectral modifications are solely due to the strong anharmonic interactions between the tube and the chain.
Our work establishes confined carbyne as the ideal test system to probe strong anharmonicity in one dimension and its huge implications on the resonant Raman response.
Pore pressure prediction based on elastic parameters derived from seismic prestack multiwave inversion
Authors: Dou Yutan , Li Fei , Wang Yonggang , Zhang Mengbo , Du Guanghong , Liu Feng 
Published: October 2024

Abstract

Pore pressure prediction is one of the major geological tasks related to oil and gas exploration and development. In this research, highly accurate elastic parameters, such as P- and S-wave impedance and density from seismic prestack multiwave joint inversion, are obtained and then innovatively converted to the burial depth domain. Moreover, based on the formation pressure measurements of wells with acoustic full-waveform logging data, a second-order polynomial is applied for △H/H and H via the least-square method. Finally, the pore pressure is calculated using the modified Liu’s pore pressure model. The pore pressure prediction method, which incorporates accurately calculated elastic parameters, S-wave impedance, and density, is found to have a higher prediction accuracy than methods based solely on P-wave impedance; it also provides enhanced resolution for pore pressure prediction in thin reservoirs. The presented method is particularly suitable for tight gas fields.
Simulation of Piezoelectric Inkjet Printing Using Fluid Structural Interaction
Authors: Shin Dong Yeol , Jeong Jaebum , Jeong Woo Jin , Jang Seok Hwan , Kang Sung Wook , Kang Kyung-Tae , Kim Jun Young 
Published: October 2024

Abstract

As inkjet printers have recently been used to manufacture organic/quantum dot light-emitting diode displays, stable ink drops and control have become important during the printing process. This paper proposes a combination simulation of Ansys Fluent and Ansys Mechanical to find the conditions of stable ink droplets. To confirm the feasibility of the simulation, a jetting simulation of Newtonian fluids with practically constant viscosity was performed, and the results were compared with experimental results. Next, we performed a simulation of commercial non-Newtonian ink whose viscosity changed with a change in shear rate and compared the results with the experimental results. The experimental and simulation outcomes differed under the same voltage conditions. The study findings show that inkjet simulation can be employed not only to find stable drop conditions but also to observe changes in pressure in the inkjet nozzle.
The Effect of Ankle Floss Band Application on Football Players:Serial Group Design Study
Authors: KOC Harun Mete , Aracı Ayca , BALTACI Gul 
Published: October 2024

Abstract

Background:This study aimed to assess the effectiveness of ankle dorsiflexion exercises with floss bands on balance, proprioception, and physical performance in football players.
Methods:A serial group design was used.The study group(SG)(n=36) received floss band application, followed by a 72-hour rest,while the control group (CG)(n=36) received foam sponge bandage application.Both groups performed identical exercises.Measurements were taken before and after bandaging and exercises.Ankle dorsiflexion range of motion (DF-ROM) was evaluated using the weight-bearing lunge test,static balance was assessed via a smartphone application,dynamic balance was measured with the Y-balance test,and proprioception was tested with the joint position sense test.Jump performance was evaluated through the triple hop test.
Results:Intra-group evaluations showed significant improvements in ankle DF-ROM,static and dynamic balance,proprioception, and jump performance in the SG (p < 0.05),while the CG only showed significant improvement in the Y-balance test (p < 0.05).Comparatively, the SG exhibited significantly higher DF-ROM than the CG (p < 0.05).Effect sizes indicated greater post-test improvements in static balance, dynamic balance, proprioception, and the triple hop test for the SG.
Conclusions:Integrating floss band training into football players' training or rehabilitation may enhance athletic performance and motor control.
Trial Registration: The study protocol was approved by the Ethics Committee of Alanya Alaaddin Keykubat University, Non-Interventional Clinical Research Ethics Committee on October 10, 2023, with decision number 2023/01, and was conducted in accordance with the principles set forth in the Declaration of Helsinki. The study was registered at www.ClinicalTrials.gov (identifier: NCT06491277).
Impact of endometrial thickness alteration in response to progesterone administration on neonatal outcomes in frozen embryo transfer cycles: analysis of 6331 singleton newborns
Authors: Ye Jing , Zhang Jie , Du Tong , Yu Sha , Zhu Yanwen , Gao Hongyuan , Liu Yali , Chen Qiuju , Kuang Yanping 
Published: October 2024

Abstract

Background
To assess the impact of progesterone-induced changes in endometrial thickness (EMT) on singleton infant outcomes during frozen-thawed embryo transfer (FET) cycles.
Methods
This retrospective observational study included a total of 6331 singleton live births resulting from frozen-thawed Day 3 embryo transfer. Endometrial thickness (EMT) was assessed using transvaginal ultrasound one day prior to progesterone administration and on the day of frozen embryo transfer (FET) to examine any variations in EMT. The study population comprised 6331 women, who were categorized into three groups based on changes in EMT: the EMT increase group, the EMT decrease group, and the EMT stable group. The primary outcomes investigated in this study were mean birthweight, low birthweight (LBW), and small-for-gestational age (SGA). A multivariable linear regression analysis was performed to explore the association between changes in EMT following progesterone administration and newborns' birthweight.
Results
Despite any fluctuations in EMT levels on the day of FET compared to one day prior to progesterone administration, there were no statistically significant differences observed in the absolute mean birthweight of singletons among the three groups (3355.30 ± 502.69 vs. 3351.30 ± 474.79 vs. 3344.26 ± 514.54, P = 0.753). In comparison to the stable EMT group, the decreased EMT group had incidences of LBW and SGA in term infants at 1.1% (adjusted odds ratio [aOR]: 1.645, 95% confidence interval [CI]: 0.818–3.307) and 2.7% (aOR: 1.141, 95% CI:0.783–1.662), respectively; however, there was no significant association between the increased EMT group and risks of LBW (aOR: 1.310, 95% CI:0.723–2.375) or SGA (aOR:0.912, 95% CI:0.660–1.261). The multiple linear regression analysis revealed that both gestational age and infant gender exerted significant influences on singleton birthweight, while any alteration in endometrial thickness subsequent to progesterone administration did not yield a statistically significant impact on singleton birthweight.
Conclusions
The extent of EMT may exhibit variability, either increasing, decreasing, or remaining stable on the day of frozen embryo transfer (FET) compared to one day prior to progesterone administration. However, it is important to note that changes in EMT following progesterone administration do not demonstrate an independent association with adverse perinatal outcomes in term infants during FET cycles.
Thyroidectomy Without Drainage: Safe Practice or Risky Decision? - A Retrospective study of 1213 patients
Authors: Yu Yong Zhi , Cui Shi Peng , Yu Bin 
Published: October 2024

Abstract

Background: Drainage application remains a controversial topic and growing research has demonstrated that drainage following thyroidectomy is unnecessary. This study is aimed to determine the role of drainage after thyroidectomy and whether no drainage use is practical.
Methods: We retrospectively reviewed patients who underwent thyroidectomy at The First Affiliated Hospital of Soochow University were reviewed retrospectively. The patients were classified into two groups according to the drainage use or not. Postoperative complications, including hematoma, seroma, recurrent laryngeal nerve injury, hypoparathyroidism, wound infection, respiratory obstruction, and reoperation were compared between the two groups. Patients’ pain scores and length of hospital stay were also assessed.
Results: The study included 1,213 patients with no deaths in either group. No statistically significant differences were found in the postoperative complications between the two groups, except for recurrent laryngeal nerve injury (p=0.038). Patients in Group 2 (non-drained) experienced significantly fewer laryngeal nerve injuries than those in Group 1 (drained). Patients in group 2 (non-drained) had significantly lower numerical rating scale (NRS) scores (p<0.001) and a shorter length of hospital stay (p<0.001).
Conclusion: No drainage use has been indicated as safe and effective for patients who undergo thyroidectomy. Drainage following thyroidectomy is not a practical procedure.
A Pilot Project on a Community-Supported Approach to Blood Pressure Management to Improve Sustainability in a Rural Community in Bangladesh
Authors: Noor Abdullah , Karmokar Sanjit , Yasmin Mst. Ferdousi , Mouree Mumtahenah Razul , Shojon Mohammad , Hussain Syed Raza , Anwar Abida Binte , Bushra Nafisa Rahman , Rathi Tanusree Mondal , Shreya Shreyashi Manishita , Rafi Md Abdur , Jahan Sanjida , Zaman Rebecca , Gastanaduy Mariella , Yasmin Nelofar , Haque Md Jawadul , Kovvuru Karthik 
Published: October 2024

Abstract

Background: This paper presents a pilot project that applied ethnographic research and facilitation of community organization to promote community support for sustainable chronic disease management in Khoriapara, a marginalized community in Bangladesh.
Methods: Our multidisciplinary approach comprised ethnographic research, community organization, screening, and monitoring. Ethnographic research was utilized to describe the community and identify resources. Facilitation of community organization involved forming the health and inclusion committee by going door to door and selecting workers via key informant preference. All individuals over age 30 within the resident-defined boundary were screened. BP was measured twice at three-minute intervals using an automatic bicep cuff. Hypertension was defined as a consistent systolic ≥140 or diastolic ≥90 measured both times. Self-efficacy scales were administered to identify care gaps and facilitate social support for hypertension patients. The screened-positive patient’s blood pressure was monitored and intervened with medications and social support every two weeks via an internet-based system utilizing local resources. We will present results from March 2020 to December 2022.
Findings: Ethnography research showed that while the residents face barriers to accessing health, education, and nutrition, the community has a distinct identity and can offer resources such as technological knowledge, interpersonal networks, and space to conduct health-related activities. The health and inclusion committee selected via door-to-door approach received acceptance and helped navigate initial conflicts that ensued due to the preferential approach to selecting workers. 260 individuals were screened. Eighteen individuals met the hypertension screening criteria. From October 2020 to December 2022, the mean change in systolic blood pressure decreased by 27 mmHg, and diastolic blood pressure decreased by 9.9 mmHg (p<.05). Resources identified in ethnography have been used to sustain the project with the support of community organization. The pilot project was done in a single community, which limits generalizability.
Interpretation: The project highlights the role of ethnography and a door-to-door approach to community organization in developing sustainable chronic disease management in resource-limited settings.