Successful Matching Research Articles

Identifying Key Performance Parameters For Successful Match Outcome In A Division II Men's Soccer Team

Identifying Key Performance Parameters For Successful Match Outcome In A Division II Men's Soccer Team

316.10: Kidney Paired Donation in Latin America, From Theory To Practice

Introduction: Between 25-30% of couples will be ABO or HLA incompatible once they finish the transplant protocol. The Kidney Paired Donation (KPD) program is a modality that resolves this incompatibility by allowing donors to be exchanged. Acord to Newsletter transplant 2020, kidney transplant activity in Latin America under the KPD program is null, however there is a Guatemala case report in 2018 where they started this program and another report from 1998 in Mexico with a series of 12 transplant cases renal with exchange of donors. There has been an evolution over time of the KPD at an international level and to date computer algorithms are used based on the blood group of the donor-recipient, sensitization status and the size of the pool of incompatible couples, determining the best probability of matching success within of the program by optimizing the successful matching of donors and recipients according to the principles of fairness, utility and justice. Method: Observational, analytical, longitudinal and prospective study from December 2018 to July 2021. Were included all G5 KDIGO chronic kidney patients who were HLA or ABO incompatible with their original donors in the pretransplant protocol and who were transplanted under the program of paired kidney donation in the Central Military Hospital, Mexico, City. Results: 22 kidney transplants were performed under this program. The most common CKD etiology was not determined (ND) with 31.8%. Survival of the graft and the patient 1 year after transplantation was 100%. The post-transplant glomerular filtration rate receptor (GFR) was 72.5 (± 17) ml/min/1.73 m2SC; the GFR post-donación was 75.04 (± 15.98) ml/min/1.73/m2SC. 36.3% of hypersensitized patients were successfully transplanted whitout plasmapheresis. The mean age of the recipients was 35.67 (± 12.45) years. The waiting time from admission to the paired program to the transplant was 4.9 months.Inter-hospital donor exchanges have already been carried out; the in-hospital donation rate increased by 33.33%. Discussion: The Case reports or case series published in latinoamerica´s countries show an adequate evolution of the patients and grafts without major complications as our Hospital. Conclusion: Transplantation under the paired kidney donation program constitutes a real modality of successful transplantation when there is incompatibility with the original donor. Increased utilization and socialization of this program can increase the country kidney transplantation rate, reducing the waiting list. Our hospital represents the largest published experience in Mexico and latinamerica with this transplant program.

Technique to match mesorectal lymph nodes imaging findings to histopathology: node-by-node comparison.

Lymph node status is critical for staging rectal cancer and determining neoadjuvant therapy regimens. Establishing a matching between imaging and histopathological lymph nodes is fundamental for predicting lymph node status. This study reports a technique to achieve node-by-node pairing of mesorectal lymph nodes between imaging findings and histopathology. Fifty-two patients with histopathologically verified rectal cancer underwent magnetic resonance imaging before surgery. The status of each lymph node in the surgical specimens was analyzed histopathologically and matched with preoperative imaging after the operation. A total of 346 mesorectal lymph nodes were located on imaging evaluation, of which 313 were confirmed histopathologically, and 33 were unmatched. The total success rate of the technique was 90.5%. Node-by-node analysis revealed 280 benign and 33 malignant nodal structures. The technique to match mesorectal lymph node imaging findings to histopathology was feasible and effective. It simplified the technical method and had a reasonable success matching rate, which could provide a standardized approach for obtaining a prospective correlation between imaging and histological findings, supporting all subsequent related studies at the level of mesorectal lymph nodes.

Linkage of people experiencing homeless using two consent models.

ObjectivesAdministrative data linkage is relatively under-utilised as a way of generating evidence to guide homelessness policy and service delivery in the UK. Our objective is to contribute insight into the ethical, legal, and practical challenges of using data linkage with data from people experiencing homelessness (PEH). ApproachWe outline the data collection and linkage methodologies for two UK-based studies related to PEH. The first design aimed to explore the acceptability and feasibility of consented linkage of trial data (‘Moving On’ trial) to NHS Digital records in a cohort of recruited PEH in two English local authorities (n=50). The second design used administrative data originating from a local authority homelessness service in Wales (n=17,000 cases) to explore educational outcomes of children in homeless households. The resultant data linkage rates are contrasted and discussed in relation to the mechanisms for obtaining and linking personal data. ResultsThe Moving On trial demonstrated high rates of consent for data linkage and the ability to collect sufficient personal identifiable data to increase the chance of successful matching. Aggregate match rates will be discussed. Of the roughly 17,000 cases included in the local authority administrative data, 75% could be linked to unique individuals using probabilistic matching and were therefor ‘useable’ in linkage research. The proportion of useable cases rapidly decreased as the cut-off for matching quality was increased, to roughly 50% of cases being useable when a 99% match probability cut-off was used. Matching rates were higher amongst priority need homeless cases, possibly reflecting business need to identify and work closely with these people. ConclusionWhere homelessness administrative data systems are not designed to enable data linkage, low matching rates can result, reducing study sample sizes and potentially leading to bias towards more extreme cases of homelessness if missed-matches are not random. Consented linkage within large-scale trials offers one possibility for generating long-term evidence.

Is Total Omentectomy Mandatory in T3 and T4a Gastric Cancer for Laparoscopic Distal Gastrectomy?

Despite the lack of strong evidence, total omentectomy (TO) remains the recommended procedure for gastric cancer (GC) for T3 or deeper tumors. Partial omentectomy (PO) has recently become a preferred procedure owing to its simplicity during laparoscopic distal gastrectomy (LDG); however, the oncological role of PO needs to be elucidated. Overall, 341 patients with T3 or T4a GC who had undergone LDG between 2009 and 2016 were divided into TO (n = 167) and PO (n = 174) groups. Propensity matching was performed with respect to covariance age, sex, T and N stage, tumor size, and degree of tumor differentiation. Clinicopathological characteristics and long-term follow-up data were analyzed for both groups. After successful propensity matching, both groups included 107 patients. In a matched cohort, no significant difference in clinicopathologic features and short-term surgical outcomes was observed between the two groups. Furthermore, no significant difference in relapse-free survival (RFS; p = 0.201) and peritoneal seeding-free survival (PSFS; p = 0.094) was observed. However, tumor recurrence as peritoneal metastasis occurred in 5 (4.7%) patients in the PO group and 13 (12.1%) patients in the TO group. In Cox proportional hazards analysis, omentectomy was not identified as a significant factor for RFS, PSFS, and overall survival; however, advanced N and T4a stage were considered significant factors for RFS and PSFS, respectively. PO may be adopted during the LDG of T3 or T4a GC without definite gross serosal exposure. More large-scale evidence or prospective study is recommended.

EmBody/EmFace as a new open tool to assess emotion recognition from body and face expressions

Nonverbal expressions contribute substantially to social interaction by providing information on another person’s intentions and feelings. While emotion recognition from dynamic facial expressions has been widely studied, dynamic body expressions and the interplay of emotion recognition from facial and body expressions have attracted less attention, as suitable diagnostic tools are scarce. Here, we provide validation data on a new open source paradigm enabling the assessment of emotion recognition from both 3D-animated emotional body expressions (Task 1: EmBody) and emotionally corresponding dynamic faces (Task 2: EmFace). Both tasks use visually standardized items depicting three emotional states (angry, happy, neutral), and can be used alone or together. We here demonstrate successful psychometric matching of the EmBody/EmFace items in a sample of 217 healthy subjects with excellent retest reliability and validity (correlations with the Reading-the-Mind-in-the-Eyes-Test and Autism-Spectrum Quotient, no correlations with intelligence, and given factorial validity). Taken together, the EmBody/EmFace is a novel, effective (< 5 min per task), highly standardized and reliably precise tool to sensitively assess and compare emotion recognition from body and face stimuli. The EmBody/EmFace has a wide range of potential applications in affective, cognitive and social neuroscience, and in clinical research studying face- and body-specific emotion recognition in patient populations suffering from social interaction deficits such as autism, schizophrenia, or social anxiety.

The Unmatched Integrated Plastic Surgery Applicant: A Focus on Improving the Application.

The Unmatched Integrated Plastic Surgery Applicant: A Focus on Improving the Application.

GENOMIC POLITICS AND EQUALITY

GENOMIC POLITICS AND EQUALITY

A nonasymptotic analysis for re‐solving heuristic in online matching

We investigate an online edge‐weighted bipartite matching problem with general capacity constraints. In this problem, the resources are offline and nonreplenishable with different capacities. Demands arrive online and each requests a certain amount of resources. The goal is to maximize the reward generated by successful matches. We model the offline optimization problem as a deterministic linear program (LP) and present multiple randomized online algorithms based on the solution to the offline LP. We analyze the performance guarantee of each algorithm in terms of its competitive ratio (CR). Importantly, we introduce a re‐solving heuristic that periodically recomputes the offline LP and uses the updated offline solution to guide the online algorithm decisions. We find that the algorithm's CR can be significantly improved when re‐solving at carefully selected time steps. Finally, we investigate the value of the demand distribution in further improving the algorithm efficiency. We conduct extensive numerical studies to demonstrate the efficiency of the proposed algorithms. The effect of market conditions on the algorithm performance is also investigated.

Optimal allocation and adjustment mechanism of shared parking slots considering combined parking resources

ABSTRACT This paper establishes a rolling shared parking allocation model to optimize the matching of supply and demand in parking-dense districts by maximizing platform revenue and minimizing parking users’ travel costs. An adjustment mechanism that dynamically adjusts the allocated parking slots is developed to be embedded in the model. Considering multi-candidate adjacent parking lots, combined sharing and individual sharing patterns are compared to verify the benefits of resource combination. Numerical experiments indicate that the proposed model works well for changing parking demands and achieves more successful matches than the first-book-first-serve model. The combination of adjacent parking resources improves the platform revenue, the parking slot utilization, and the acceptance rate of parking requests, as well as reduces the average walking distance. The direct parking revenue of the parking lot with fewer slots is remarkably increased under combined sharing. The findings provide managerial insights for local collaborative shared parking.

Affective domain predictors of PharmD student pursuit of and successful matching for postgraduate pharmacy residency training.

A study was conducted to identify significant associations between affective domain (AD) features identified using the Birkman Method assessment and students' likelihood to pursue and to successfully match for postgraduate residency training (PGRT), while controlling for demographic and academic variables known to impact PGRT match rates. A retrospective analysis of 3 graduating classes of PharmD students from 2 colleges of pharmacy was performed. Data points such as PGRT match results, PGRT pursuit, student demographics, academic performance information, and AD data from the Birkman assessment were analyzed. Regression analysis was used to identify statistically significant associations between demographic, academic performance, and AD variables with both pursuit of PGRT and successful matching for PGRT. Data from 503 students were evaluated, with 211 (42%) pursuing PGRT. A variety of AD variables were significantly associated with pursuing PGRT and matching for PGRT. Two groups of actionable variables emerged: (1) variables associated with a lesser likelihood of pursuing PGRT but a greater likelihood of successful matching, and (2) variables associated with a greater likelihood of pursuing PGRT and a lesser likelihood of successful matching. Early identification of students' AD features along with specific interventions to promote PGRT pursuit in those less likely to pursue but more likely to match, as well as interventions to promote successful matching in students most likely to pursue but less likely to match for PGRT, is a strategy for possibly optimizing PharmD student career path planning and PGRT match success that merits further evaluation.

"Iris Recognition Based Data Security for Secure Transmission Over Internet of Things Network"

The biometric traits of any human being such as fingerprint, tongue prints, face recognition, Retina Scan, Iris recognition etc. are unique and cannot be replicated or fabricated using modern technologically advanced processes. These unique traits are used to identify individuals for grating access to sensitive data over the cloud. In this paper we propose a biometric authentication system based on Iris recognition to allow user identity based data to be pushed on to the cloud for global access, if the user Iris image is authenticated with the database. The real time Iris scanner captures the Iris image and same is imported to the MATLAB workspace for feature extraction and matching. Upon successful matching, the data is transmitted to the ThingSpeak Internet of Things (IoT) analytics platform. The IoT framework is a massive network of physical devices sharing data according to set protocols. Most of the IoT enabled devices lack security protocols. Thus, biometric authentication in general and iris recognition in particular finds a perfect fit for securing data over an IoT framework.

The Impact of COVID-19 on the Orthopaedic Surgery Residency Match.

Introduction Matching into an orthopaedic surgery residency program presents a challenging accomplishment for applicants to achieve in any given year. Due to the profound changes to the application process caused by the coronavirus disease 2019 (COVID-19) pandemic it was theorized that there would be a change in the number of graduates matching close to their home medical school region, state, and program. Methods Orthopaedic surgery residency program Web sites and social media accounts were accessed to elucidate current resident data, including graduates' medical school, and geographical location of their school. Chi-square analysis was performed to identify trends in current residents matching within their home program, state, and region associated with the 2021 orthopaedic match. These numbers were compared with previous year's successful applicants. Results In 2021, a significant 4.4% ( p =0.02) increase in successful matches within applicants' home states occurred (33.4% vs. 37.8%) and home programs ( p <0.001) when compared with previous years (21.2% vs. 27.4%). However, in 2021, there was no significant change in home region matching ( p =0.56) with 60% of successful matches occurring in home regions. This was statistically consistent with what was observed in previous years (61.4%). Conclusion The COVID-19 pandemic was associated with restrictions in travel and interview options resulting in a significant increase in the number of orthopaedic applicants who matched into their home program, or at programs in their home state compared with previous years. Although no statistically significant regional change occurred during the 2021 match, it remains the leading predictor of where successful applicants will match. With many unknowns related to the upcoming match cycles it is important for applicants and programs to have a general idea of recent trends and outcomes to best focus their efforts, especially if diversity and minority inclusion are considered in highly competitive specialties like orthopaedic surgery.

Effects of fingerprint recognition algorithms on toeprint and fingerprint

Democracy is a form of government in which politicians are chosen by popular vote. Voting may be done using behavioural biometrics, known as transparent balloting, which involves indicating a candidate of preference by indication, or physiological biometrics, known as hidden balloting, which involves appending a fingerprint to a vote. In certain countries around the world, fingerprints are used to cast ballots. However, injury casualties, natural disaster victims, and lepers, who account for one out of every 10,000 people in the world's population of approximately 7.7 billion, may pose a concern if their fingerprints are used to classify them. Two photographs were chosen to make up the sample collection: a Toeprint image with a left loop to be contrasted with a fingerprint image with a left loop. The photos were subjected to the standard fingerprint recognition algorithm, which included processes such as Normalisation, Orientation, Binarization, Thinning, and Minutiae Extraction. Since the experiment was not designed to measure the accuracy of the recognition algorithm, processing time and image quality were not taken into account. When the findings were compared, it was discovered that the algorithm had the same impact on both photos and that the derived minutiae points, which are the foundation for successful matching, were greater than 100. A modern method of self-identity and voting for lepers and injury patients is now accessible.

Increasing Living Liver Donor Pools: Liver Paired Exchange Versus ABO-incompatible Living Donor Liver Transplantation.

Increasing Living Liver Donor Pools: Liver Paired Exchange Versus ABO-incompatible Living Donor Liver Transplantation.

Applicant Characteristics Associated with Retina Fellowship Match from 2010–2019

To describe trends in the surgical and medical retina fellowship match and applicant characteristics associated with matching in retina fellowship. Retrospective study. Ophthalmology fellowship applicants who applied through the San Francisco (SF) Match. Publicly available SF Match data were used to describe trends in the number of programs participating and positions offered, filled, and left vacant in the retina fellowship match from 2014 to 2019. Deidentified applicant data for match cycles from 2010 to 2017 were stratified by match status, and characteristics were compared across groups. Trends in matched applicant characteristics were evaluated using linear regression on log-transformed variables. Multivariable logistic regression was used to determine applicant characteristics that were associated with a successful match. Match status. From 2014 to 2019, the number of programs participating, positions filled, and positions left vacant in the retina fellowship match increased from 101 to 119 (P= 0.010), 118 to 123 (P= 0.078), and 18 to 37 (P= 0.045), respectively. Compared with unmatched applicants, matched applicants were more likely to have graduated from a top 10 residency program, US residency, or medical school; hold a United States (US) visa (J-1, H-1B, or O1); distribute more applications; complete more interviews; rank more programs; and score higher on the United States Medical Licensing Examination (USMLE) Step examinations 1-3. Matched applicants completed a median of 10 interviews. After controlling for potential covariates, graduating from a US residency (odds ratio [OR], 2.08; 95% confidence interval [CI], 1.48-2.92), a top 10 residency (OR, 1.74; 95% CI, 1.07-2.84), having an allopathic medical degree (MD; OR, 2.39; 95% CI, 1.08-5.33), completing more interviews (OR, 1.28; 95% CI, 1.23-1.33), and scoring higher on USMLE Step 3 (OR, 1.01; 95% CI, 1.01-1.03) were associated with matching into a retina fellowship. Although the number of programs participating and positions offered in the retina fellowship match are increasing, the number of positions filled remained relatively stagnant. Factors associated with matching in both medical and surgical retina included graduating from a US and top 10-ranked residency program, having an MD, completing more interviews, and scoring higher on USMLE Step3.

QS36. A Comprehensive Review of Medical Student First Author Publications in Plastic Surgery

Purpose: The integrated plastic surgery residency match is a highly competitive process. If performed wisely, medical research is an opportunity to differentiate application from peers, and productivity is closely evaluated by residency programs. In this study, we aimed to characterize medical student research productivity for integrated plastic surgery residency programs and their respective medical schools. Methods: A retrospective review of senior author publications from the 81 integrated plastic surgery programs from January 1, 2016 to December 31, 2020 was performed. The primary outcome was publication with a medical student as the first author. Secondary outcomes included number of faculty from each program, geographic region of program, and ranking of associated medical school. Results: The average number of medical student first author publications and faculty members per institution were 14.0 and 11.0, respectively. There was a positive correlation between number of faculty members and number of medical student first author publications for a program (R = 0.54, p < 0.0001). The average number of medical student first author publications was higher at top 25 programs than for the remaining programs (p < 0.001). Conclusions: Most medical student first author publications in the United States are produced by 10 plastic surgery programs. Programs associated with higher ranking medical schools produce greater numbers of medical student first author publications. These analyses of medical student academic productivity should be a highly useful guide for current and future medical students as they strategize their successful match into plastic surgery.

A truthful subsidy scheme for a peer-to-peer ridesharing market with incomplete information

Traffic congestion during peak periods has become a serious issue around the globe, partly due to the high number of single-occupancy commuter trips. Peer-to-peer (P2P) ridesharing platforms can present a suitable alternative for serving commuter trips. However, they face a major obstacle that prevents them from being a viable mode of transportation in practice: ridesharing users often provide tight time windows, which ultimately leads to a low matching rate. This study addresses this issue by introducing a subsidy scheme that allocates incentives to encourage a few carefully selected set of travelers to change their desired departure or arrival times, and thereby form successful matches. In order to implement this scheme for a ridesharing platform in the existence of private information, we propose an auction-based mechanism that guarantees truthfulness, individual rationality, budget-balance, and computational efficiency. Using numerical experiments, we show the merits of the proposed subsidy scheme when compared to its no-deficit variant as well as the conventional VCG mechanism.

Educational Outcomes of a 4-Year MD-MPH Dual-Degree Program: High Completion Rates and Higher Likelihood of Primary Care Residency.

In 2007, University of Texas Health Science Center Houston School of Public Health at San Antonio (UTHealth SPH) and UT Health San Antonio Long School of Medicine (LSOM) designed and implemented a 4-year dual MD and Master of Public Health (MPH) program. Dual MD-MPH programs wherein students can receive both degrees within 4 years are unique, and programmatic evaluation may have generalizable implications for accredited MD-MPH programs. Demographic information was collected from UTHealth SPH and LSOM student data. The primary outcome variable was MD-MPH program completion in 4 years. Comprehensive Basic Science Examination (CBSE) scores, United States Medical Licensing Examination Step 1 and Step 2 scores, and successful primary care residency match data were compared between MD-MPH and MD-only students. Family medicine, internal medicine, obstetrics-gynecology, and pediatrics were considered primary care residencies, and an analysis excluding obstetrics-gynecology was also conducted. Of 241 MD-MPH students enrolled 2007-2017, 66% were women, 22% Hispanic, and 10% African American. Four-year MD-MPH program completion occurred for 202 (93% of eligible) students; 9 (4.1%) received MD only, 3 (1.4%) received MPH only; and 4 (1.8%) received neither. MD-MPH students' median CBSE score was 2 points lower than for MD-only students (P = .035), but Step 1 and 2 scores did not differ. Primary care residency match was more likely compared with MD-only students, both including and excluding obstetrics-gynecology (odds ratio [OR]: 1.75; 95% confidence interval [CI]: 1.31, 2.33; and OR: 1.36; 95% CI: 1.02, 1.82, respectively). The 4-year MD-MPH program retains and graduates a socioeconomically and racial/ethnically diverse group of students with a 93% success rate. MD-MPH graduates were more likely to pursue primary care residency than non-dual-degree students, which may have implications for addressing population health disparities.

Orthopaedic Surgery Away Rotations: Current Issues and Lessons Learned.

Introduction:Away rotations have become a critical factor for a successful orthopaedic surgery residency match. Away rotations significantly improve an applicant's chance of matching into an orthopaedic residency. Away rotations were limited during the 2020 to 2021 academic year because of the COVID-19 pandemic. During the 2021 to 2022 academic year, the American Association of Medical Colleges coalition recommended students only complete 1 rotation outside their home institution, whereas the American Orthopaedic Association Council of Residency Directors argued that multiple rotations should be allowed. We sought to quantify the impact of these restrictions on orthopaedic surgery applicants during the 2020 to 2021 residency application cycle.Methods:An online survey was sent to all applicants applying to the authors' home orthopaedic surgery program. The survey asked respondents to indicate how many away rotations they completed and how many they planned to complete but were unable to complete in the 2020 to 2021 application cycle. Historical match data were obtained from the National Resident Matching Program's publicly accessible Main Residency Match Data and Reports.Results:Survey responses were collected from 650 of 812 applicants (80%) to our program. Over a third of respondents (38.1%) reported completing 3 subinternship rotations during the 2020 to 2021 application cycle. Nearly a quarter of respondents (24.0%) reported completing 4 rotations. Most applicants (50.9%) were unable to complete 5 previously planned rotations because of pandemic-related restrictions, and 25.2% reported an inability to complete 4 rotations. Fewer applicants reported canceling 3 rotations (9.2%), 2 rotations (6.8%), or 1 (7.8%) rotation.Conclusions:Away rotations have been a traditional component of the orthopaedic surgery application process. Restrictions on away rotations in the 2020 to 2021 residency application cycle had affected the number of rotations that applicants were able to complete. However, despite those restrictions, over a third of applicants were able to complete at least 3 rotations. This suggests that the away rotation experience is variable for students and may be multifactorial; however, our study did not investigate the reasons for this. Accordingly, limiting away rotations may support an inequitable environment for medical students applying to orthopaedic surgery, and creating a consensus definition among medical schools, program directors, and orthopaedic chairs of away rotations, their duration, and the maximum number allowed would enhance fairness and reduce inconsistencies.