bluuebunny/crossref_metadata_2025_split huggingface dataset:
Insights into patient preferences for elective surgery during the COVID-19 pandemic
Authors: Hotchen Andrew James , Khan Saad A. , Khan Maaz A. , Seah Matthew , Charface Zain H. , Khan Zarif , Khan Wasim , Kang Niel , Melton Joel Thomas Kirk , McCaskie Andrew W. , McDonnell Stephen M. 
Published: April 2021

AimsTo investigate factors that contribute to patient decisions regarding attendance for arthroplasty during the COVID-19 pandemic.MethodsA postal questionnaire was distributed to patients on the waiting list for hip or knee arthroplasty in a single tertiary centre within the UK. Patient factors that may have influenced the decision to attend for arthroplasty, global quality of life (QoL) (EuroQol five-dimension three-level (EQ-5D-3L)), and joint-specific QoL (Oxford Hip or Knee Score) were assessed. Patients were asked at which ‘COVID-alert’ level they would be willing to attend an NHS and a “COVID-light” hospital for arthroplasty. Independent predictors were assessed using multivariate logistic regression.ResultsOf 540 distributed questionnaires, 400 (74.1%; 236 awaiting hip arthroplasty, 164 awaiting knee arthroplasty) complete responses were received and included. Less than half (48.2%) were willing to attend for hip or knee arthroplasty while a UK COVID-19 epidemic was in circulation (COVID-alert levels 3 to 5). Patients with worse joint-specific QoL had a preference to proceed with surgery at COVID-alert levels 3 to 5 compared to levels 1 and 2 (hip arthroplasty odds ratio (OR) 1.54 (95% confidence interval (CI) 1.45 to 1.63); knee arthroplasty OR 1.16 (1.07 to 1.26)). The odds of patients with worse joint-specific QoL being willing to attend for surgery at COVID-alert levels 3 to 5 increased further if surgery in a private, “COVID-light” hospital was available (hip arthroplasty OR 3.50 (95% CI 3.26 to 3.71); knee arthroplasty OR 1.41 (95% CI 1.29 to 1.53).ConclusionPatient decisions surrounding elective surgery have been influenced by the global COVID-19 pandemic, highlighting the importance of patient involvement in ensuring optimized provision of elective surgery during these challenging times. Cite this article: Bone Jt Open 2021;2(4):261–270.
Development of a core outcome set for idiopathic clubfoot management
Authors: Leo Donato Giuseppe , Russell Aisling , Bridgens Anna , Perry Daniel C. , Eastwood Deborah M. , Gelfer Yael 
Published: April 2021

Aims This study aims to define a set of core outcomes (COS) to allow consistent reporting in order to compare results and assist in treatment decisions for idiopathic clubfoot. Methods A list of outcomes will be obtained in a three-stage process from the literature and from key stakeholders (patients, parents, surgeons, and healthcare professionals). Important outcomes for patients and parents will be collected from a group of children with idiopathic clubfoot and their parents through questionnaires and interviews. The outcomes identified during this process will be combined with the list of outcomes previously obtained from a systematic review, with each outcome assigned to one of the five core areas defined by the Outcome Measures Recommended for use in Randomized Clinical Trials (OMERACT). This stage will be followed by a two round Delphi survey aimed at key stakeholders in the management of idiopathic clubfoot. The final outcomes list obtained will then be discussed in a consensus meeting of representative key stakeholders. Conclusion The inconsistency in outcomes reporting in studies investigating idiopathic clubfoot has made it difficult to define the success rate of treatments and to compare findings between studies. The development of a COS seeks to define a minimum standard set of outcomes to collect in all future clinical trials for this condition, to facilitate comparisons between studies and to aid decisions in treatment. Cite this article: Bone Jt Open 2021;2(4):255–260.
Methods for Analyzing Submerged Jet Erosion Test Data to Model Scour of Cohesive Soils
Authors: Wahl Tony L. 
Published: April 2021

HighlightsFifty-two jet erosion tests performed on four cohesive soils were analyzed by nine different methods.Nonlinear methods performed well on some individual tests but fit inconsistently overall.Several alternate linear solution methods outperformed the widely used Blaisdell method.Simple linear regression of erosion rate versus applied shear stress provided the most consistent relationship between erosion rate and critical shear stress parameters.Abstract. The submerged jet erosion test (JET) is widely used in lab and field settings to quantify erodibility of cohesive soils and determine erosion rate coefficients and critical shear stress values. Test devices with different scales and configurations have been developed in recent years, along with several alternative methods for processing the collected data to determine parameters of linear and nonlinear soil erosion equations. To facilitate standardization, 52 JET experiments were conducted on four different cohesive soils compacted at optimum water content and 2% dry and wet of optimum. Each test was analyzed using nine different methods, four based on the linear excess stress equation (including the commonly used Blaisdell method) and five based on nonlinear erosion equations, including two using the recently popular Wilson model. Results were analyzed to determine the erosion equations and parameter-fitting methods that most effectively represent the observed erosion rates and are of greatest utility for soil erosion modeling and the ranking and classification of soils according to erodibility. Methods based on nonlinear erosion equations fit some data sets well, but they exhibited poor correlation between the erosion rate coefficient and the threshold shear stress parameter for initiating erosion, which is problematic for soil erodibility classification work. Linear methods that simultaneously optimized erosion equation parameters to best fit the total depth of scour or the elapsed time needed to reach specific depths of scour performed better than the Blaisdell method, which has been the informally accepted standard of practice since the late 1990s. However, they also exhibited weak correlation of the erosion rate and critical shear stress parameters. Simple linear regression of average scour rate versus average applied stress provided an effective method for representing the erosion rate versus applied stress curve and exhibited the strongest correlation of the erosion rate coefficient and critical shear stress parameters. Keywords: Cohesive soil, Critical shear stress, Erodibility, Erosion, Erosion laws, Erosion models, Jet erosion test, Shear strss, Soil moisture.
Keragaman dan pengelompokan ikan berdasarkan karakter morfologi di ekosistem Bendungan Colo Sukoharjo Jawa Tengah
Authors: Cahyono Ragil Nur , Budiharjo Agung , Sugiyarto Sugiyarto 
Published: April 2021

The objective of the present study was to determine the diversity fishes in Colo Dam ecosystem and grouping its based on morphological characteristics. Sampling was conducted in September to October 2017 at Sukoharjo Colo Dam Central Java used the purposive random sampling method. Identification of fish species based Kottelat (1993). The diversity of fish was calculated using Shannon Wiener's diversity index. The relationship between abiotic factors and the diversity of fish was analyzed by regression test. Grouped fish with the Ntsys cluster method (2.02i). The results showed that the diversity of Colo Dam fish at station III was higher (1.16) than at stations I, II, and IV (0.84, 0.82, and 1.15), the abiotic factors affecting the diversity of fish species, and fish species that have large morphological equations have a high coefficient of similarity value in dendogram analysis.Penelitian ini bertujuan untuk menganalisis keanekaragaman dan pengelompokan ikan pada di Bendungan Colo. Pengambilan sampel dilakukan pada bulan September-Oktober 2017 di Bendungan Colo Sukoharjo menggunakan metode Purposive sampling. Identifikasi spesies ikan berdasarkan Kottelat (1993). Keanekaragaman ikan dihitung menggunakan indeks keragaman Shannon Wiener. Hubungan antar faktor abiotik dengan keanekaragaman ikan dianalisis dengan uji regresi. Pengelompokan ikan dengan metode cluster Ntsys (2.02i). Hasil penelitian menunjukkan bahwa keragaman ikan Bendungan Colo di stasiun III lebih tinggi (1,16) dari pada stasiun I, II, dan IV (0,84; 0,82; dan 1,15), faktor abiotik mempengaruhi keanekeragaman jenis ikan, dan jenis-jenis ikan yang memiliki persamaan morfologi yang besar memiliki nilai koefisien kemiripan yang tinggi dalam analisis dendogram.
Dampak keberadaan Pelabuhan Perikanan Nusantara Idi Aceh Timur terhadap sosial ekonomi masyarakat nelayan
Authors: Insyafrijal Insyafrijal , Nasir Muhammad , Abdullah Faisal 
Published: April 2021

The purpose of this study was to analyze the socio-economic impact of the community as beneficiaries of Idi fishing port (PPN) and to formulate a strategy to increase people's income. The method used in this research is descriptive method and case study, where descriptive method is used to collect data about the condition and activity of Idi fishing port operation within 5 (five) years, while the case study method is used to know the socio-economic condition of the community as the beneficiary ports, where the data were taken are workers within the port area as well as direct or indirect beneficiaries of port activities with a focal point on fishing communities as the largest workers in the port area. Formulation of income generation strategy using SWOT analysis. The results of the study explain that the condition of the community around the of Idi fishery port is not much different from the condition of other coastal communities where education is not the main priority. In addition, the amount of income in general is still strongly influenced by fish production and ship visits and has not yet met the needs of household fishermen's expenditure. Strategies that can be used to increase people's income is through increased efficiency in the preparation of facilities and infrastructure so that the process of fishing and loading and unloading fish can be faster, saving time and saving cost. Further information on the location of fishing ground and encourage the use of frozen freezer on board is recommended to be done so that the cost of fishing is cheaper and fish prices higher. Tujuan penelitian ini adalah untuk menganalisis dampak sosial ekonomi masyarakat nelayan sebagai penerima manfaat Pelabuhan Perikanan Nusantara (PPN) Idi serta merumuskan strategi peningkatan pendapatan masyarakat. Metode yang digunakan dalam penelitian adalah metode deskriptif dan studi kasus, dimana metode deskriptif digunakan untuk mengumpulkan data mengenai kondisi dan aktivitas operasional PPN Idi dalam jangka waktu 5 (lima) tahun. Perumusan strategi peningkatan pendapatan masyarakat menggunakan analisis Internal Strengths dan weaknesses serta lingkungan Eksternal Opportunities dan Threats (SWOT). Hasil penelitian menjelaskan bahwa kondisi masyarakat nelayan disekitar PPN Idi tidak jauh berbeda dengan kondisi masyarakat pesisir lainnya dimana pendidikan bukan prioritas utama. Selain itu jumlah pendapatan secara umum masih sangat dipengaruhi oleh produksi ikan serta kunjungan kapal. Strategi yang bisa digunakan untuk meningkatkan pendapatan masyarakat yaitu melalui peningkatan efisiensi dalam penyiapan sarana serta prasarana sehingga proses nelayan berangkat dan bongkar muat ikan bisa lebih cepat, menghemat waktu dan biaya. Selanjutnya informasi lokasi keberadaan ikan secara berkala serta mendorong penggunaan freezer beku diatas kapal direkomendasikan untuk dilakukan sehingga biaya melaut lebih murah dan harga ikan lebih tinggi.
Simple reformulation of the coordinate transformation method for gratings with a vertical facet or overhanging profile
Authors: Ming Xianshun , Sun Liqun 
Published: April 2021

We reformulate the coordinate transformation method (C method) for gratings with a vertical facet or overhanging profile (overhanging gratings), in which no tensor concept is involved, only the knowledge of elementary mathematics and Maxwell’s equations in the rectangular coordinate system is used, and we provide a detailed recipe for programming. This formulation is easy to understand and implement. It adopts the strategy of a rotating coordinate system from Plumey et al. [J. Opt. Soc. Am. A 14, 610 (1997)JOAOD60740-323210.1364/JOSAA.14.000610] and expresses it with the method of changing variables from Li et al. [Appl. Opt. 38, 304 (1999)APOPAI0003-693510.1364/AO.38.000304]. We investigate several typical overhanging gratings by the reformulated C method, and we validate and compare the results with the Fourier modal method, which shows that it is superior, especially for metal deep smooth gratings. This reformulation can facilitate the research in light couplers for optical engineers.
The impact of COVID-19 vaccination campaigns accounting for antibody-dependent enhancement
Authors: Adil Mahmoud Yousif Nessma , Tsoungui Obama Henri Christian Junior , Ngucho Mbeutchou Yvan Jordan , Kwamou Ngaha Sandy Frank , Kayanula Loyce , Kamanga George , Ibrahim Toheeb Babatunde , Bwanu Iliya Patience , Iyanda Sulyman , Alawam Nemer Looli , Helle Kristina Barbara , Teboh-Ewungkem Miranda Ijang , Schneider Kristan Alexander 
Published: April 2021

Background
COVID-19 vaccines are approved, vaccination campaigns are launched, and worldwide return to normality seems within close reach. Nevertheless, concerns about the safety of COVID-19 vaccines arose, due to their fast emergency approval. In fact, the problem of antibody-dependent enhancement was raised in the context of COVID-19 vaccines.

Methods and findings
We introduce a complex extension of the model underlying the pandemic preparedness tool CovidSim 1.1 (http://covidsim.eu/) to optimize vaccination strategies with regard to the onset of campaigns, vaccination coverage, vaccination schedules, vaccination rates, and efficiency of vaccines. Vaccines are not assumed to immunize perfectly. Some individuals fail to immunize, some reach only partial immunity, and—importantly—some develop antibody-dependent enhancement, which increases the likelihood of developing symptomatic and severe episodes (associated with higher case fatality) upon infection. Only a fraction of the population will be vaccinated, reflecting vaccination hesitancy or contraindications. The model is intended to facilitate decision making by exploring ranges of parameters rather than to be fitted by empirical data. We parameterized the model to reflect the situation in Germany and predict increasing incidence (and prevalence) in early 2021 followed by a decline by summer. Assuming contact reductions (curfews, social distancing, etc.) to be lifted in summer, disease incidence will peak again. Fast vaccine deployment contributes to reduce disease incidence in the first quarter of 2021, and delay the epidemic outbreak after the summer season. Higher vaccination coverage results in a delayed and reduced epidemic peak. A coverage of 75%–80% is necessary to prevent an epidemic peak without further drastic contact reductions.

Conclusions
With the vaccine becoming available, compliance with contact reductions is likely to fade. To prevent further economic damage from COVID-19, high levels of immunization need to be reached before next year’s flu season, and vaccination strategies and disease management need to be flexibly adjusted. The predictive model can serve as a refined decision support tool for COVID-19 management.
Barriers and enablers to effective interprofessional teamwork in the operating room: A qualitative study using the Theoretical Domains Framework
Authors: Etherington Cole , Burns Joseph K. , Kitto Simon , Brehaut Jamie C. , Britton Meghan , Singh Sukhbir , Boet Sylvain 
Published: April 2021

Background
Effective teamwork is critical for safe, high-quality care in the operating room (OR); however, teamwork interventions have not consistently resulted in the expected gains for patient safety or surgical culture. In order to optimize OR teamwork in a targeted and evidence-based manner, it is first necessary to conduct a comprehensive, theory-informed assessment of barriers and enablers from an interprofessional perspective.

Methods
This qualitative study was informed by the Theoretical Domains Framework (TDF). Volunteer, purposive and snowball sampling were conducted primarily across four sites in Ontario, Canada and continued until saturation was reached. Interviews were recorded, transcribed, and de-identified. Directed content analysis was conducted in duplicate using the TDF as the initial coding framework. Codes were then refined whereby similar codes were grouped into larger categories of meaning within each TDF domain, resulting in a list of domain-specific barriers and enablers.

Results
A total of 66 OR healthcare professionals participated in the study (19 Registered Nurses, two Registered Practical Nurses, 17 anaesthesiologists, 26 surgeons, two perfusionists). The most frequently identified teamwork enablers included people management, shared definition of teamwork, communication strategies, positive emotions, familiarity with team members, and alignment of teamwork with professional role. The most frequently identified teamwork barriers included others’ personalities, gender, hierarchies, resource issues, lack of knowledge of best practices for teamwork, negative emotions, conflicting norms and perceptions across professions, being unfamiliar with team members, and on-call/night shifts.

Conclusions
We identified key factors influencing OR teamwork from an interprofessional perspective using a theoretically informed and systematic approach. Our findings reveal important targets for future interventions and may ultimately increase their effectiveness. Specifically, achieving optimal teamwork in the OR may require a multi-level intervention that addresses individual, team and systems-level factors with particular attention to complex social and professional hierarchies.
Retinal vessel shift and its association with axial length elongation in a prospective observation in Japanese junior high school students
Authors: Asano Shotaro , Yamashita Takehiro , Asaoka Ryo , Fujino Yuri , Murata Hiroshi , Terasaki Hiroto , Yoshihara Naoya , Kakiuchi Naoko , Sakamoto Taiji 
Published: April 2021

PurposeTo investigate retinal vessel shift (RVS) and its association with axial length (AL) elongation in junior high school students.MethodsTotal 161 eyes of 161 healthy junior high school students were prospectively studied. Optical AL and anterior chamber depth (ACD) measurements, and fundus photography were performed in the first and third grades. Eyes of subjects in the first and third grade that had perfect matching among all the retinal vessels were allocated to the RVS(−) group, otherwise allocated to the RVS(+) group. In the RVS(+) group, the peripapillary retinal arteries angle (PRAA) was measured for quantitative analysis of RVS; the angle between the major retinal arteries. The variables related to PRAA were identified using model selection with the corrected Akaike information criterion.ResultsForty-two eyes (26.1%) were allocated to the RVS(+) group. There were seven patterns in the RVS of those in the RVS(+) group, including clockwise shift in the supra temporal area (5 eyes), infra temporal area (7 eyes), and nasal area (9 eyes); anticlockwise shift in the supra temporal area (7 eyes), infra temporal area (5 eyes), and nasal area (2 eyes); and distal shift in the temporal area (7 eyes). The optimal model for the PRAA narrowing included larger AL and body weight in the first grade, and greater AL elongation.ConclusionVarious (seven) RVS patterns were observed in about 25% of the junior high school students within two years. RVS was associated with AL elongation, and useful to reveal the mechanism of myopic retinal stretch.
Clinical characteristics and outcomes of patients with Corona Virus Disease 2019 (COVID-19) at Mercy Health Hospitals, Toledo, Ohio
Authors: Khan Muhammad Shayan , Dogra Ratika , Miriyala Leela K. V. , Salman F. N. U. , Ishtiaq Rizwan , Patti Dilnoor K. , Kumar Aakash , Sandho Gaurav , Jacob Karim , Luthra Kritika , Sharma Ravina , Ravikumar Rekha , Edara Dharmakaruna , Pittampalli Shanti , Sood Divya , Khatri Vinod , Mahajan Vijay , Avasthi Salil , Auoad Arlette , Katragadda Srinivas 
Published: April 2021

Importance
The ongoing pandemic of the novel Corona Virus Disease 2019 (COVID-19) is an unprecedented challenge to global health, never experienced before.

Objective
This study aims to describe the clinical characteristics and outcomes of patients with COVID-19 admitted to Mercy Hospitals.

Design and methods
Retrospective, observational cohort study designed to include every COVID-19 subject aged 18 years or older admitted to Mercy Saint (St) Vincent, Mercy St Charles, and Mercy St Anne’s hospital in Toledo, Ohio from January 1, 2020 through June 15th, 2020. Primary Outcome Measure was mortality in the emergency department or as an in-patient.

Results
470 subjects including 224 males and 246 females met the inclusion criteria for the study. Subjects with the following characteristics had higher odds (OR) of death: Older age [OR 8.3 (95% CI 1.1–63.1, p = 0.04)] for subjects age 70 or more compared to subjects age 18–29); Hypertension [OR 3.6 (95% CI 1.6–7.8, p = 0.001)]; Diabetes [OR 3.1 (95% CI 1.7–5.6, p<0.001)]; COPD [OR 3.4 (95% CI 1.8–6.3, p<0.001)] and CKD stage 2 or greater [OR 2.5 (95% CI 1.3–4.9, p = 0.006)]. Combining all age groups, subjects with hypertension had significantly greater odds of the following adverse outcomes: requiring hospital admission (OR 2.2, 95% CI 1.4–3.4, p<0.001); needing respiratory support in 24 hours (OR 2.5, 95% CI: 1.7–3.7, p<0.001); ICU admission (OR 2.7, 95% CI 1.7–4.4, p<0.001); and death (OR 3.6, 95% CI 1.6–7.8, p = 0.001). Hypertension was not associated with needing vent in 24 hours (p = 0.07).

Conclusion
Age and hypertension were associated with significant comorbidity and mortality in Covid-19 Positive patients. Furthermore, people who were older than 70, and had hypertension, diabetes, COPD, or CKD had higher odds of dying from the disease as compared to patients who hadn’t. Subjects with hypertension also had significantly greater odds of other adverse outcomes.