Expertise of Surgeons Publishing Novel Techniques in the Journal of Wrist Surgery

2021 ◽  
Author(s):  
Lara L. Cohen ◽  
Dustin H. Massel ◽  
Joseph S. Geller ◽  
David L. Chen ◽  
Seth D. Dodds
Keyword(s):  
Statistical Analysis ◽  
Surgical Techniques ◽  
Senior Author ◽  
New Technique ◽  
Novel Technique ◽  
Research Outcomes ◽  
Surgeon Experience ◽  
Standardize Reporting ◽  
Statistical Results

Abstract Introduction Recent efforts to standardize reporting of surgeon experience in novel technique publications have recommended reporting of Tang level of expertise (LOE). Question/Purpose The aim of this study was to document trends in LOE reporting for novel technique articles published in the Journal of Wrist Surgery and evaluate whether author experience affects novel research outcomes. Methods A total of 261 articles published from 2018 to 2020 were reviewed. Articles describing novel surgical techniques were included and examined for Tang LOE. Author variables were collected online. Results Eight percent (21/261) of articles discussed novel surgical techniques and one reported LOE. Nearly half (47.6%) of articles did not conduct statistical analysis. Four (19.0%) reported insignificant statistical results and 7 (33.3%) reported significant findings. All significant statistical findings were positive. Number of prior related publications by the senior author did not affect new technique result significance (p = 0.34). Discussion From 2018 to 2020, only one article documented LOE. Authors' variables, including number of prior related publications, were not correlated with significant results in their new publications. This may suggest that an author's established experience in a novel technique, quantified by prior publications on the topic, does not make one more likely to achieve significantly better or worse outcomes in their reviewed Journal of Wrist Surgery study. Conclusions Tang LOE is an important way for readers to classify expertise and should be reported, and potentially modified to better define contributing variables.

scholarly journals III. Analyses of agricultural yield. Part I.—The spacing experiment with Egyptian cottom, 1912

1915 ◽  
Vol 206 (325-334) ◽  
pp. 103-180 ◽  
Keyword(s):  
Statistical Analysis ◽  
Environmental Conditions ◽  
Field Work ◽  
Senior Author ◽  
Agricultural Crops ◽  
Chief Factors ◽  
Full Analysis ◽  
Final Yield ◽  
Agricultural Yield

The aim of the investigations here entered upon is statistical analysis of the yield of agricultural crops in terms of the stages of the plant’s development. When the yield is a fruit, then precedent stages determining the yield must be the flower and, before this, the development of flowering branches. In such a case, for full analysis of the final yield, careful records of these stages must first be taken all through the development season of the crop. The senior author has elaborated, during experiments on cotton in Egypt, the procedure for carrying out such analysis and the points to be attended to. Armed with this method of analysis the effects of environmental conditions on the development of the crop can be satisfactorily distinguished. The chief factors of environment capable of control in field work are—the space allowed to each plant, the date of sowing, the supply of water, of manures, and the choice of the year in which the crop is grown.

scholarly journals The Influence of Design Parameters on Straight Bevel Gear Dynamics

2015 ◽  
Vol 5 (2) ◽  
pp. 114
Author(s):  
Chiu-Fan Hsieh ◽  
You-Qing Zhu
Keyword(s):  
Statistical Analysis ◽  
The Other ◽  
Design Parameters ◽  
Bevel Gears ◽  
Straight Bevel Gear ◽  
Pressure Angle ◽  
Stress Fluctuation ◽  
Shaft Angle ◽  
Statistical Results ◽  
Component Force

<p class="1Body">This study analyzes the influence of design parameters on the dynamics of straight bevel gears by constructing a model that allows variation in the shaft angle, pressure angle, and backlash. According to the statistical analysis, the order of influence of these parameters on weight is shaft angle &gt; pressure angle &gt; backlash. When the shaft angle is 90°, the statistical results show the drive is stable and the stress fluctuation level is low. The pressure angle, on the other hand, can affect the gear’s dynamic property by influencing the driving component force on the gear and the component force on the shaft. The results for the shaft and pressure angles are used to determine the appropriate backlash. Overall, the analysis not only provides designers with an important reference but explains the dominance in the market of gear designs with a 90° shaft angle and a 20° pressure angle.</p>

scholarly journals A Novel Technique for the Damage Control of Huge Diaphragmatic Injuries

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Boris Kessel
Keyword(s):  
Primary Closure ◽  
Damage Control ◽  
New Technique ◽  
Primary Suture ◽  
Novel Technique ◽  
Control Setting ◽  
Animal Trial ◽  
Temporary Closure

A novel technique for the damage control of big diaphragmatic injuriesPurpose: To evaluate and describe a novel technique for the temporary closure ofmajor diaphragmatic defects not suitable for primary suture in damage control setting.Background: It is an acceptable opinion that all left sided diaphragmatic injuriesshould be repaired, as opposed to right sided where the liver may safely protect thedefect. In most cases the repair of the diaphragm is simple, using non-absorbablesutures. Closure of defects not suitable for primary suture, remains a reallychallenging problem. Up today, there is no adequate solution for prevention of re-protrusion of abdominal contents in a damage control setting.Methods: We report a novel technique suitable for treating diaphragmatic injuries indamage control setting. This method allows a rapid temporary closure of, non-suitablefor primary closure, large diaphragmatic defects and part of the damage controlconcept.Results: Two anesthetized pigs were used in an animal trial to evaluate the feasibilityof the technique. Same size defects were created in both subjects. In the first subject,the defect was closed with a plastic (Bogota) bag. In the second subject, thediaphragmatic defect was covered using a large abdominal pad. In both cases, nochest protrusion was observed after completion of the experiment.Conclusion: We describe a simple new technique for temporary diaphragmatic closurethat might be done as part of damage control. Further investigation will help toinclude it to routine surgical arsenal.

Designers’ Willingness Assessment to Use Recycled and Salvaged Materials in Landscape Architecture

2014 ◽  
Vol 935 ◽  
pp. 138-141
Author(s):  
Zahra Balador ◽  
Zahra Raeisi
Keyword(s):  
Statistical Analysis ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Landscape Architecture ◽  
The Other ◽  
Construction Sites ◽  
Material Management ◽  
Gas Emissions ◽  
Management Guidelines ◽  
Statistical Results

Using salvages and reused materials is an effort to conserve energy and other resources, and reduce greenhouse gas emissions; on the other hand, these materials cost a fraction of the price of new. The information generated by this study revealed several useful material management guidelines. Statistical results shows that designers who are educated about these products and how they can be used, are interested in using recycled materials, and can potentially decrease the amount of trash being produced on a much larger level. All information was obtained from product brochures, manufacturer websites, visiting construction sites, statistical analysis and conversations with designers.

scholarly journals Impact of surgical treatment of pectus carinatum on cardiopulmonary function: a prospective study

2020 ◽  
Author(s):  
Barbara Del Frari ◽  
Stephan Sigl ◽  
Anton H Schwabegger ◽  
Cornelia Blank ◽  
David Morawetz ◽  
...  
Keyword(s):  
Prospective Study ◽  
Supine Position ◽  
Surgical Techniques ◽  
Peak Power Output ◽  
Pectus Carinatum ◽  
Open Label ◽  
Cardiopulmonary Function ◽  
Postoperative Changes ◽  
Surgeon Experience ◽  
A Prospective Study

Abstract OBJECTIVES The frequency of sternochondroplasty in cases of pectus carinatum (PC) has increased due to greater surgeon experience and modified surgical techniques. PC deformity does not usually cause cardiopulmonary malfunction or impairment. However, whether cardiopulmonary function changes after surgical repair remains a matter of controversy. The aim of our prospective study was to determine if surgery changes preoperative cardiopulmonary function. METHODS Nineteen patients (16 males, 3 females) were enrolled in a prospective, open-label, single-arm, single-centre clinical trial (Impact of Surgical Treatments of Thoracic Deformation on Cardiopulmonary Function) (NCT02163265) between July 2013 and January 2017. All patients underwent PC repair via a modified Ravitch procedure and wore a lightweight, patient-controlled chest brace for 8 weeks postoperatively (the Innsbruck protocol). The average follow-up surgical examination was 8.3 months after surgery. In all enrolled patients, before surgery and not before 6 months postoperatively chest X-ray, 3-dimensional volume-rendered computed tomography thorax imaging, cardiopulmonary function tests with stepwise cycle spiroergometry (sitting and supine position) and Doppler echocardiography were performed; questionnaires about daily physical activity were also completed. RESULTS Fourteen patients (aged 16.3 ± 2.6 years at study entry) completed the study. Changes in submaximal and peak power output were not detected during sitting, or when in the supine position. Also, no clinically relevant postoperative changes in spirometry or echocardiography were noted. CONCLUSIONS Our findings confirm that surgical correction of PC does not impair cardiopulmonary function at rest or during physical exercise. Clinical registration number clinicaltrials.gov NCT02163265.

A Study of Social Think Tanks in China: Dilemma, Trends and Breakthroughs

2018 ◽  
Vol 10 (1) ◽  
pp. 1-33
Author(s):  
Dong Wang
Keyword(s):  
Statistical Analysis ◽  
Professional Training ◽  
Think Tanks ◽  
Western China ◽  
Public Governance ◽  
Research Outcomes ◽  
Conducting Research ◽  
Systematic Understanding ◽  
Weak Fields

Abstract Social think tanks play an irreplaceable role in the field of public governance because of their unique objective perspectives and expertise. But there has disproportionately inadequate research into social think tanks. At present, researches and explorations concerning social think tanks are largely mixed with studies on “think tanks,” and there are still no institutes, groups or periodicals which work specifically as platforms through which social think tanks are evaluated, monitored and supported. To effectively address such problems as the direction, methodology, priorities and points of penetration for research on social think tanks, it is necessary to have a comprehensive, systematic understanding of present researches into social think tanks. By conducting searches in the CNKI database, 224 articles were chosen for statistical analysis in seven respects, namely, year of publication, author, organization with which the author works, theme, citation, concentration of research, and journal involved. Based on analysis findings, this paper suggests building a platform by which to evaluate and monitor researches on social think tanks, establishing an echelon-based model of professional training for social think tanks, stepping up development of social think tanks in western China or the remote and poor parts of the country, optimizing mechanisms for the transformation and application of research outcomes of social think tanks, increasing support to weak fields of research on social think tanks, and conducting research into major and difficult problems confronting social think tanks.

Study Design and Statistics

2009 ◽  
Author(s):  
Margaret A. Winker ◽  
Stephen J. Lurie
Keyword(s):  
Public Opinion ◽  
Statistical Analysis ◽  
Medical Research ◽  
Cardiac Catheterization ◽  
Opinion Poll ◽  
Public Opinion Poll ◽  
Margin Of Error ◽  
Heart Functions ◽  
Statistical Results

Statistical concepts, such as the margin of error in a public opinion poll or the probability of rain or snow, appear in everyday conversation. But, just as one may understand how the heart functions and how blood circulates but not be able to perform a cardiac catheterization, an understanding of statistical concepts does not enable one to perform the work of a statistician. Although the concepts may be familiar, the tools of statistics may be misapplied and the results misinterpreted without a statistician’s help. In medical research, the quality of the statistical analysis and clarity of presentation of statistical results are critical to a study’s validity. Decisions about statistical analysis are best made at the time that the study is designed and generally should not be deferred until after the data have been collected. Even the most sophisticated statistical analysis cannot salvage a fundamentally flawed study. Regardless of the statistician’s role, authors (who may include statisticians) are responsible for the appropriate design, analysis, and presentation of the study’s results...

scholarly journals Examining Modern European Poet-Translators ‘Distantly’

2016 ◽  
Vol 25 (1) ◽  
pp. 10-27 ◽  
Author(s):  
Jacob Blakesley
Keyword(s):  
Twentieth Century ◽  
Statistical Analysis ◽  
English Language ◽  
Translation Studies ◽  
Comparative Assessment ◽  
Statistical Results ◽  
Language Poets ◽  
National Literatures

Despite the flourishing of Translation Studies as a discipline, there has been little comparative assessment of modern European poet-translators, much less from a quantitative perspective. This article illustrates the use of statistical analysis of modern European poet-translators to understand literary currents and translation trends within and among national European literatures. Statistical results reveal fundamental differences in the practice of translation among European poets, specifically, twentieth-century Italian, French, Spanish, and English-language poets. It becomes clear which European poets translated the most and from which languages, as do contrasts in translation trends between national literatures through the twentieth century.

scholarly journals The Prosthetic Management of a Case of Epulis Fissuratum by a Novel Technique

2020 ◽  
pp. 109-114
Author(s):  
Rabia Mekayssi ◽  
Bouchra Taleb ◽  
Nadia Merzouk ◽  
Faîza Benfdil
Keyword(s):  
Clinical Management ◽  
Fibrous Tissue ◽  
New Technique ◽  
Prosthetic Rehabilitation ◽  
Causal Factors ◽  
Novel Technique ◽  
A New Technique ◽  
Tissue Conditioner

The clinical management of the epulis involves the elimination of causal factors, excision of fibrous tissue excess accompanied by an appropriate prosthetic rehabilitation. The confection of interim prosthesis or the rectification of old prosthesis for the setting up of a tissue conditioner if necessary, to improve the healing and prevent the decrease of the vestibule depth after the surgical exeresis. Throughout this paper, we are going to present a new technique for the correction of old prostheses poorly adapted for the management of a case of the epulis fissuratum.

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