scholarly journals Blind Listening Evaluation of Steel String Acoustic Guitar Compensation Strategies

2017 ◽  
Author(s):  
R.M. Mottola
Keyword(s):  
Block Design ◽  
Rank Correlation ◽  
Test Results ◽  
Compensation Strategy ◽  
Double Blind ◽  
Spearman’S Rank Correlation ◽  
Randomized Complete Block Design ◽  
Acoustic Guitar ◽  
Intonation Accuracy

A double blind multisample intonation rating test was administered to 32 experienced guitar players/guitar builders to test perceived effectiveness of some common steel string acoustic guitar intonation compensation strategies. The test used a randomized complete block design where each treatment was a typical guitar intonation compensation strategy. Each subject completed two sequentially presented sessions. Subjects were asked to rate intonation accuracy following audition of prepared sound clips. Each clip contained a short sequence of notes recorded from steel string acoustic guitar with either perfect intonation or tuning modified to fit the intonation profile of one of three typical guitar intonation compensation strategies: straight saddle compensation, individual string saddle compensation, or individual string saddle and nut compensation. Subject ratings indicate that all compensation strategies tested were equally effective. Analysis of test results by ANOVA did not indicate significant perceived differences for either session (p=0.596, p=0.286). Results of follow-up t-tests comparing intonation ratings for perfect intonation and the compensation treatment associated with the highest intonation errors (straight saddle compensation) also showed that these two treatments were equally effective in both sessions (p=0.137, p=0.359). Results of follow-up Bayesian estimation analyses comparing these two treatments also indicated no discernable difference for either session (session 1 difference of means 95% HDI: -1.31, 0.472; session 2 difference of means 95% HDI: -0.819, 1.13). Subjects’ correlation between ratings and actual intonation accuracy was determined by comparing ratings to intonation errors for each compensation strategy using Spearman's rank correlation. Rating correlation varied greatly among subjects (-1 ≤ ρ ≤ 0.949). The two subjects with the best overall correlations each gave identical ratings to two different strategies. These correlations showed low correlation to subject age and to years of guitar playing experience. These analyses suggest that all compensation strategies tested are equally successful.

Patient-reported outcomes after Silastic replacement of the trapezium for osteoarthritis

2011 ◽  
Vol 37 (3) ◽  
pp. 263-268 ◽  
Author(s):  
N. G. Burke ◽  
J. Walsh ◽  
C. J. Moran ◽  
G. Cousins ◽  
D. Molony ◽  
...  
Keyword(s):  
Rank Correlation ◽  
Dominant Hand ◽  
Work Related ◽  
Spearman’S Rank Correlation ◽  
Trapeziometacarpal Osteoarthritis ◽  
Patient Reported ◽  
Outcome Scores ◽  
And Function ◽  
Mean Time

This retrospective study evaluated 69 Swanson trapezium replacements performed between 1990 and 2009 for trapeziometacarpal osteoarthritis in 58 patients. Pain and function were assessed using the Michigan Hand Questionnaire and the Disability of the Arm, Shoulder and Hand questionnaire. Patients had a mean age of 62 years at the time of surgery, with a mean time of 7.7 years (range 9 months to 19 years) from surgery to follow-up interview. There was no association between outcome scores and the length of follow-up, suggesting that the results are maintained over time (Spearman’s rank correlation test < ±0.2). Scores for activities of daily living and work-related activities were higher when surgery was on the dominant hand ( p < 0.05). Silicone trapezium replacement remains a good option for patients with painful trapeziometacarpal osteoarthritis that has not responded to nonoperative management.

Reference values for Lactate Pro 2™ in fetal blood sampling during labor: a cross-sectional study

2017 ◽  
Vol 45 (3) ◽  
Author(s):  
Brynhildur Tinna Birgisdottir ◽  
Malin Holzmann ◽  
Ingela Hulthén Varli ◽  
Sofie Graner ◽  
Sissel Saltvedt ◽  
...  
Keyword(s):  
Lactate Concentration ◽  
Rank Correlation ◽  
Cross Sectional Study ◽  
University Hospital ◽  
Sectional Study ◽  
Cross Sectional ◽  
Spearman’S Rank Correlation ◽  
Fetal Blood Sampling ◽  
Conversion Equation

AbstractObjective:Lactate ProStudy design:A cross-sectional study was conducted at a university hospital in Sweden. A total of 113 laboring women with fetal heart rate abnormalities on cardiotocography (CTG) had FBS carried out. Lactate concentration was measured bedside with both LP1 and LP2 from the same blood sample capillary. A linear regression model was constructed to retrieve a conversion equation to convert LP2 values to LP1 values.Results:LP2 measured higher values than LP1 in all analyses. We found that 4.2 mmol/L with LP1 corresponded to 6.4 mmol/L with LP2. Likewise, 4.8 mmol/L with LP1 corresponded to 7.3 mmol/L with LP2. The correlation between the analyses was excellent (Spearman’s rank correlation, r=0.97).Conclusion:We recommend the following guidelines when interpreting lactate concentration in FBS with LP2: <6.4 mmol/L to be interpreted as normal, 6.4–7.3 mmol/L as preacidemia indicating a follow-up FBS within 20–30 min, and >7.3 mmol/L as acidemia indicating intervention.

scholarly journals Evaluation of Onion Lines for Resistance to Onion White Rot and Onion Maggot

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 830G-831
Author(s):  
M.R. McDonald ◽  
T. Lewis ◽  
I. Goldman
Keyword(s):  
Block Design ◽  
Organic Soil ◽  
White Rot ◽  
Onion Maggot ◽  
Sclerotium Cepivorum ◽  
Randomized Complete Block Design ◽  
Commercial Cultivars ◽  
Low Levels ◽  
Field Plots

Onion lines were evaluated for resistance to Allium white rot (Sclerotium cepivorum Berk.) and onion maggot [Delia antigua (Meig.)] in field plots established on organic soil in the Bradford Marsh, Ontario. White rote valuations were conducted on 20 lines in 1992–1994, with follow-up laboratory trials in 1995. Onion maggot screening was conducted on these same lines in 1993 and 1994. Plots were arranged in a randomized complete-block design with four replications per line. Significant differences in susceptibility to white rot were found in 1992 and 1993, while differences in onion maggot resistance were identified in 1993 and 1994. Commercial cultivars Norstar and Fortress had relatively low levels of onion maggot damage and Fortress demonstrated some tolerance to white rot. Other lines with low levels of white rot infection were 1292-91, 1564-91, 124-93, 116-93, and 117-93, from the breeding program at the Univ. of Wisconsin. Line 1292-91 also had low levels of onion maggot damage. The horticultural characteristics of the onion lines will be discussed.

scholarly journals Verification of automated latex-enhanced particle immunoturbidimetric D-Dimer assays on different analytical platforms and comparability of test results

2020 ◽  
Vol 30 (3) ◽  
pp. 457-465
Author(s):  
Ivana Lapić ◽  
Snježana Prpić ◽  
Dunja Rogić ◽  
Renata Zadro ◽  
Vanja Raščanec ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Method Comparison ◽  
Rank Correlation ◽  
Correlation Coefficients ◽  
Test Results ◽  
Spearman’S Rank Correlation ◽  
Coefficients Of Variations ◽  
Analytical Platforms ◽  
D Dimer ◽  
Analytical Verification

Introduction: The aim of the study was the analytical verification of automated latex-enhanced particle immunoturbidimetric (LPIA) D-Dimer assay INNOVANCE D-dimer on Sysmex CS-5100 and Atellica COAG 360 analysers, and HemosIL D-dimer HS500 on ACL TOP 550, as well as the comparison with the enzyme-linked immunofluorescent assay (ELFA) on the miniVidas analyser. Materials and methods: Verification included assessment of within-run and between-run precision, bias, measurement uncertainty (MU), verification of the cut-off, method comparison between all assessed assays, and the reference commercial ELFA VIDAS D-Dimer Exclusion II. Results: Within-run coefficients of variations (CVs) ranged from 1.6% (Atellica COAG 360) to 7.9% (ACL TOP 550), while between-run CVs ranged from 1.7% (Sysmex CS-5100) to 6.9% (Atellica COAG 360). Spearman’s rank correlation coefficients were > 0.99 between LPIAs and ≥ 0.93 when comparing ELFA with LPIA. Passing-Bablok regression analysis yielded constant and proportional difference for comparison of ACL TOP 550 with both Sysmex CS-5100 and Atellica COAG360, and for miniVidas with Atellica COAG360. Small proportional difference was found between miniVidas and both Sysmex CS-5100 and ACL TOP 550. Calculated MUs using D-dimer HS 500 calibrator were 12.6% (Sysmex CS-5100) and 15.6% (Atellica COAG 360), while with INNOVANCE D-dimer calibrator 12.0% (Sysmex CS-5100), 10.0% (Atellica COAG 360) and 28.1% (ACL TOP 550). Excellent agreement of results was obtained, with occasional discrepancies near the cut-off. The cut-off (0.5 mg/L FEU) was confirmed. Conclusions: The obtained results prove satisfactory analytical performance of LPIAs, their high comparability and almost equal discriminatory characteristics, suggesting them as a valid alternative to ELFA.

Abstract W P259: ICH &FUNC Scores in the Ethnic/Racial Variations of Intracerebral Hemorrhage (ERICH) Study

Stroke ◽  
2014 ◽  
Vol 45 (suppl_1) ◽  
Author(s):  
Kevin N Sheth ◽  
Gene Sung ◽  
Carl D Langefeld ◽  
Charles J Moomaw ◽  
Jennifer Osborne ◽  
...  
Keyword(s):  
Intracerebral Hemorrhage ◽  
Functional Outcome ◽  
Rank Correlation ◽  
Predictive Ability ◽  
Spearman’S Rank Correlation ◽  
Hispanic Patients ◽  
Chart Abstraction ◽  
Ich Score ◽  
Hispanic White

Introduction: The Intracerebral Hemorrhage (ICH) Score and Functional Outcome (FUNC) Score are prediction scales used to estimate outcome. These scales have not yet been validated in large minority cohorts. Our goal was to evaluate the predictive ability of the ICH and FUNC Score for white, black, and Hispanic patients. Methods: ERICH is an ongoing study of genetic and environmental risk factors for spontaneous ICH. The analysis included 847 cases enrolled prior to 1/1/2013 that had chart abstraction, baseline interview, CT imaging, GCS, and 3-month follow-up data available. Spearman’s rank correlation was used to assess the correlation between each score and 3-month modified Rankin Scale (mRS) score by ethnicity. Regression models were used to determine the predictive ability of each score. Results: Patients analyzed were 42% non-Hispanic black, 34% Hispanic, and 24% non-Hispanic white. Black and Hispanic subjects were younger compared with white subjects (p<.0001) and had higher proportions of deep ICH (p=.0013). Spearman’s rank correlations for ICH Score/FUNC Score and mRS at 3 months post ICH were 0.53/0.53 for black subjects, 0.66/0.63 for Hispanics, and 0.55/0.54 for whites. Both ICH and FUNC Scores had better predictive ability for minorities compared with whites (ICH Score, B = 0.87 black, 1.02 Hispanic, 0.76 white, p<.0001; FUNC Score, B = 0.56 black, 0.65 Hispanic, 0.49 white, p<.0001). Multiple regression demonstrated independent contributions by both scores for each ethnicity. Figure 1 demonstrates distribution of mortality by score. Conclusions: Both the ICH Score and FUNC Score were independently predictive of functional outcome at 3 months. Importantly, each score exhibits higher predictive ability in minority populations compared with whites. Whether or not this difference is attributed to minority status or baseline differences in age or ICH location requires further study.

scholarly journals Heterodera glycine race 2 and the yield of common bean in Puerto Rico.

1969 ◽  
Vol 86 (3-4) ◽  
pp. 117-122
Author(s):  
James R. Smith
Keyword(s):  
Puerto Rico ◽  
Common Bean ◽  
Seed Yield ◽  
Yield Components ◽  
Block Design ◽  
Randomized Complete Block Design ◽  
Glycine Max L ◽  
Race 2 ◽  
Pod Number

Heterodera glycines, a destructive pathogen of soybean (Glycine max L. Merc), was recently discovered in Puerto Rico. Common bean (Phaseolus vulgaris L.) can also be a host for H. glycines, but there are no reports of the effect of H. glycines on seed yield of bean. The objective of this study was to determine the effect of the Puerto Rico race-2 population of H. glycines on yield components of common bean. Three resistant and three non-resistant bean lines were exposed to three infestation densities (0, 4,000, and 8,000 eggs and juveniles per pot) of H. glycines race 2, A factorial arrangement of lines and infestation densities was used in a randomized complete block design with six replications in a greenhouse in Isabela, Puerto Rico, in 2000. Data for seed number, pod number, and seed yield per plant were collected. H. glycines had no effect on any yietd component. Observed differences in yield components were due to genotypic factors unrelated to H. glycines. Initial conclusions indicate that H. glycines will not affect yield of common bean in Puerto Rico. Follow-up studies of common bean and H. glycines, using course-textured sous, are recommended.

scholarly journals PHYSICAL PROTECTOR IN DIRECT SOWING OF BARU INFLUENCING IN THE INITIAL GROWTH OF THE SEEDLINGS

2018 ◽  
Vol 5 (4) ◽  
pp. 20-25
Author(s):  
Rogério Costa da Silva ◽  
Ana Paula Leite de Lima ◽  
Sebastião Ferreira de Lima ◽  
Guilherme Marchesini Trevizani ◽  
João Batista Leite Junior
Keyword(s):  
Seedling Survival ◽  
Block Design ◽  
Seedling Emergence ◽  
Soil Surface ◽  
Stem Diameter ◽  
Initial Growth ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
Direct Sowing

The objective of this study was to evaluate the influence of using physical protectors on the emergence and initial growth of Baru seedlings in a direct sowing system. The experiment was installed in a randomized complete block design, testing the use of physical protectors (no protection, P0; plastic cup (500 mL) without the bottom, P1; laminated wood, P2), with 12 repetitions. Weekly soil temperature monitoring was carried out in the morning and in the afternoon in the period between 14 and 56 days after sowing (DAS). Daily emergence follow-up was also performed, and the stem diameter, total height and number of leaves were measured at 81 DAS. The use of physical protectors in the direct seeding of Baru interfered in the soil surface temperature on the sowing point, on the seedling emergence speed index, seedling survival, stem diameter and seedling height. Implementing protectors slowed the seedling emergence speed, however it provided higher percentages of emergence, survival and greater growth in diameter and height.

Disease-free survival as a surrogate endpoint for overall survival in an adjuvant trial of curatively resected stomach cancer using individual patient data meta-analysis

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 4517-4517
Author(s):  
T. Burzykowski ◽  
Y. Bang ◽  
Keyword(s):  
Stomach Cancer ◽  
Meta Analysis ◽  
Rank Correlation ◽  
Disease Free Survival ◽  
Resected Stomach ◽  
Free Survival ◽  
Spearman’S Rank Correlation ◽  
Hazard Ratios ◽  
Disease Free

4517 Background: In investigations of the effectiveness of oncology drugs, overall survival (OS) is considered as the gold standard end point. However, the disadvantage of OS is that it requires an extended follow-up. A reasonable candidate for a surrogate for OS in the adjuvant setting is disease free survival (DFS). DFS is defined as recurrence of stomach cancer, all second cancers, or death from any cause. Recently, some evidence has been offered for the use of DFS as a surrogate for OS in, e.g., colorectal cancer. We evaluated 3 year DFS as a surrogate for 5 year OS in adjuvant trials of stomach cancer by using individual-patient data (IPD) meta- analysis validation criteria. Methods: The GASTRIC group initiated an IPD meta-analysis of all randomized clinical trials comparing chemotherapy versus surgery alone for patients with curatively resected stomach cancer. The validity of DFS at 3 years as a surrogate for OS at 5 years was investigated by using multiple analysis techniques, which included measures of correlation between the endpoints and between the treatment effects, and the percentage of agreement in the log-rank tests for the two endpoints at the trial level. Results: Among the 31 eligible trials, at most 25 collected the date of recurrence (5,014 pts). As of December 2008, IPD were available from 13 randomized controlled trials (3,161 patients). Seventy-seven percent of patients (1,280/1,652 pts) who recurred during the follow-up period, recurred within the first 3 years after study enrollment. At the trial level, 12 out of the 13 trials yielded the same conclusions for both endpoints at the 0.05 significance level. The R2 value between both endpoints was equal to 0.97 and Spearman's rank correlation was equal to 0.92. The R2 value between hazard ratios for OS and DFS was equal to 0.85 and Spearman's rank correlation was equal to 0.87. Conclusions: Our preliminary results, which are based on 63% of the targeted data, show that the 5-year OS and the 3-year DFS are highly correlated. Additionally, the hazard ratios for DFS and OS are also strongly associated. This suggests that 3-year DFS may be a good surrogate for a 5-year OS. The results based on the most recent update of the IPD will be presented during the conference. No significant financial relationships to disclose.

scholarly journals Investigations of socioeconomic factors associated with follow-up compliance with malaria treatment in Haiti

2021 ◽  
Vol 45 ◽  
pp. 1
Author(s):  
Tamar E. Carter ◽  
Alexandre Existe ◽  
Madsen Beau de Rochars ◽  
Bernard A. Okech
Keyword(s):  
Logistic Regression ◽  
Health Center ◽  
Management Practices ◽  
Rank Correlation ◽  
Household Size ◽  
Health Centers ◽  
Site Location ◽  
Spearman’S Rank Correlation ◽  
Center Location

Objective. To identify factors affecting compliance with follow-up during treatment in confirmed malaria patients at two health centers in Haiti. Methods. A prospective observational study of malaria patients undergoing treatment over a six-week period. Patients’ return visits (follow-up visits) to the health centers for consultation in accordance with the physicians’ requests were recorded and used to determine compliance. Socioeconomic data were obtained from patient enrollment questionnaires and through post-treatment interviews. The management practices and procedures at the health centers to retain patients were also reviewed. Descriptive statistics and Spearman’s rank correlation were used to identify significant factors, which were used as variables in a logistic regression model. Results. Sixty-eight percent of the malaria patients completed follow-up, with higher compliance being recorded in the larger, more established health center of Leogane (67%) than Cite Soleil (33%). The patient socioeconomic profiles differed between the two health center locations by level of education, religious diversity, household size, and percentage of married individuals. Crude logistic regression analyses identified health center location (OR = 0.179 [95% CI 0.064, 0.504]) and household size (OR = 1.374 [95% CI 1.056, 1.787]) to be associated with compliance. The adjusted model only identified health center location (OR = 0.226 [95% CI 0.056, 0.918]) as significantly associated with compliance. Conclusion. Although patients’ household size may be important according to the crude logistic regression analysis, in the adjusted analysis the site location of the health center where patients receive treatment was identified as the only important factor associated with follow-up compliance in malaria patients during treatment in Haiti. This information might be helpful to improve treatment outcomes and contribute to the monitoring of antimalarial resistance in Haiti.

scholarly journals Effect of Zinc and Magnesium Fertilizers on the Yield and Some Characteristics of Wheat (Triticum aestivum L.) Seeds in Two Years

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Farhad Sadeghi ◽  
Abbas Rezeizad ◽  
Mehdi Rahimi
Keyword(s):  
Magnesium Sulfate ◽  
Human Health ◽  
Zinc Sulfate ◽  
Block Design ◽  
Wheat Yield ◽  
Triticum Aestivum L ◽  
Test Results ◽  
Randomized Complete Block Design ◽  
Reduced Costs ◽  
Four Levels

In order to study the interaction effects of zinc and magnesium fertilizers on wheat (cv. Sivand) yield and other characteristics, a factorial experiment was carried out based on a randomized complete block design (RCDB) using four replications. Four levels of zinc sulfate (0, 20, 40, and 60 kg ha−1) and four levels of magnesium sulfate (0, 70, 140, and 210 kg ha−1) were used in this study. The parameters studied included germination, plant height, tillering, 1000-seed weight, hectoliter weight, concentrations of zinc and magnesium in seeds, protein content, and yield. The effects of zinc sulfate and magnesium sulfate for most traits were significant ( p < 0.01 ). The highest grain yield (7.68 Ton ha−1) was obtained by applying 60 kg ha−1 of zinc and consuming 140 kg of magnesium per hectare. The maximum magnesium amount in seed was shown in treatment with 60 kg ha−1 of zinc × 210 kg ha−1 magnesium, which was 0.352 mg kg−1. Treatments with the best economic aspects were 20 kg ha−1 of zinc sulfate × 70 kg ha−1 magnesium sulfate and 40 kg ha−1 of zinc × 140 kg ha−1 magnesium, in terms of using less zinc and magnesium fertilizers and having a favorable impact on the attributes. The application of these treatments on wheat can ultimately increase zinc and magnesium in wheat grain. Because these elements play a role in human health, the use of these treatments in wheat can increase zinc and magnesium in wheat grains, and therefore, an effective step can be taken in human health by producing these wheat. According to the test results, the application of 60 kg ha−1 of zinc sulfate along with 140 kg ha−1 of magnesium sulfate can play an important role in increasing wheat yield with reduced costs.

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