Properties of multiple comparison test procedures

Call number: LD2668 .R4 1963 K4

Milk Density in Two Dairy Collection Routes for Pasteurizing Plant in Camagüey.

Milk density values were assessed in two  dairy collection routes (Route 6 and Purialito)  for Pasteurizing Plant in Camagüey, Cuba. The study was carried out in the months of March-April-May, 2013, where 179 samples were as-sessed, and a density values database was created. A descriptive statistical analysis for density was performed with SPSS 15.0. Using simple variance analysis through a general linear model, the effects of route, month, and their int e-ractions on milk  weight, were measured. The multiple comparison test (Tuckey) was performed to contrast density differences between months. Route and month significantly influenced on milk density (P ≤ 0.05); the same behavior was observed for  route-month interaction (P ≤ 0.05). The mean values and ranges of dairy density were within the normal limits, though in May they decreased to  1.027 g/cm3 . The multiple comparison test  (Tuckey) showed significant levels (P ≤ 0.001) between March and April; and March and May (P ≤ 0.05); no statistical significant dif-ferences were observed between April and May. The better route was Purialito in terms of dairy density

Studi Komparasi Prestasi Belajar Siswa Menggunakan Model Pembelajaran Kooperatif Tipe Tsts dan Tps pada Pokok Bahasan Struktur Atom dan Sistem Periodik Unsur di Kelas XI IPA SMA Negeri 5 Pekanbaru

Has conducted a comparative study to find out significant differences in student's achievement and to determine student's achievement higher between implementation of cooperative learning models TSTS and TPS on learning topic of Atomic Structure and Elements of the Periodic System at SMAN 5 Pekanbaru. This is an true experimental research with Design Randomized Control Group Pretest-Posttest. The research sample consisted of 2 experimental classes with the implementation of cooperative learning models TSTS and TPS, and 1 control class. Research data analysis using ANOVA one way followed by Scheffe multiple comparison test. Based on the results of data processing by ANOVA one way obtained that Fcount > Ftable is 15,37 > 3,08 which shows that there are significant differences in student achievement between the experimental class TSTS, TPS, and control class. The results of data processing by Scheffe multiple comparison test was obtained the difference between the average experimental class of TSTS and TPS exceeded the values Scheffe is 4,79 > 4,68 and an average experimental class of TSTS higher than average experimental class of TPS is 54,1 > 49,31 which shows that there are significant differences in student's achievement between implementation of cooperative learning models TSTS and TPS. Student's achievement with implementation of cooperative learning models TSTS higher than TPS on learning topic of Atomic Structure and Elements of the Periodic System in class XI IPA SMAN 5 Pekanbaru

Impact of surface treatments on the sorption and solubility of a heat-cured denture base material

Removable dentures fabricated from polymethylmethacrylate material are the most common prostheses used to treat edentulism worldwide. This research aimed to compare the sorption and solubility characteristics of a mechanically polished heat-cured acrylic denture material and a light-cured varnished material against non-treated material, all of which were soaked in distilled water. A total of 45 specimens were prepared and tested according to the ISO Standard 20795-1: 2013 (E) to test for sorption and solubility. The data were analysed through one-way analysis of variance (ANOVA) and Tukey-Kramer multiple comparison test

Studi Komparasi Prestasi Belajar Siswa Menggunakan Model Pembelajaran Kooperatif Numbered Heads Together (Nht) dan Think Pair Share (Tps) pada Pokok Bahasan Struktur Atom dan Sistem Periodik Unsur di Kelas XI IPA SMA Negeri 10 Pekanbaru

The aim of research to find out significant differences in student\u27s achievement and to determine student\u27s achievement higher between implementation of cooperative learning models NHT and TPS on learning topic of Atomic Structure and Elements of the Periodic System. This is an true experimental research with design Randomized Control Group Pretest-Posttest. Population on this research are all students of class XI IPA SMAN 10 Pekanbaru 2015/2016 academic year consisting of 5 classes. The research sample consisted of 3 classes, XI IPA 1 as the experimental class of NHT, XI IPA 2 as the experimental class of TPS and XI IPA 3 as the control class. Research data analysis using ANOVA one way followed by Scheffe multiple comparison test. Based on the results of data processing by ANOVA one way obtained that Fcount > Ftable is 18,92 > 3,08 with α = 0,05; df JKA = 2 and df JKD = 109. The results of data processing by Scheffe multiple comparison test was obtained the difference between the average experimental class of NHT and TPS exceeded the values Scheffe is 5,6> 4,49 with α = 0,05 and an average experimental class of NHT higher than average experimental class of TPS is 48,96> 43,36. Based on the analysis of data processing concluded that there are significant differences in student\u27s achievement between implementation of cooperative learning models NHT and TPS. Student\u27s achievement with implementation of cooperative learning models NHT higher than TPS on learning topic of Atomic Structure and Elements of the Periodic System in class XI IPA SMAN 10 Pekanbaru

Evaluation of trueness and precision of removable partial denture metal frameworks manufactured with digital technology and different materials

PURPOSE. The aim of this study is to evaluate the accuracy of removable partial denture (RPD) frameworks produced using different digital protocols. MATERIALS AND METHODS. 80 frameworks for RPDs were produced using CAD-CAM technology and divided into four groups of twenty (n = 20): Group 1, Titanium frameworks manufactured by digital metal laser sintering (DMLS); Group 2, Co-Cr frameworks manufactured by DMLS; Group 3, Polyamide PA12 castable resin manufactured by multi-jet fusion (MJF); and Group 4, Metal (Co-Cr) casting by using lost-wax technique. After the digital acquisition, eight specific areas were selected in order to measure the Δ-error value at the intaglio surface of RPD. The minimum value required for point sampling density (0.4 mm) was derived from the sensitivity analysis. The obtained Δ-error mean value was used for comparisons: 1. between different manufacturing processes; 2. between different manufacturing techniques in the same area of interest (AOI); and 3. between different AOI of the same group. RESULTS. The Δ-error mean value of each group ranged between -0.002 (Ti) and 0.041 (Co-Cr) mm. The Pearson’s Chi-squared test revealed significant differences considering all groups paired two by two, except for group 3 and 4. The multiple comparison test documented a significant difference for each AOI among group 1, 3, and 4. The multiple comparison test showed significant differences among almost all different AOIs of each group. CONCLUSION. All Δ-mean error values of all digital protocols for manufacturing RPD frameworks optimally fit within the clinical tolerance limit of trueness and precision

A Comparison of Six Personality Factors Between Professional, College, and High School Basketball Players

This investigation was concerned with comparing six personality factors among professional, college, and high school basketball players. The different factors measured include competitive trait anxiety, trait self-confidence, concentration, mental preparation skills, achievement motivation levels, and leadership skills. A self-evaluation questionnaire was administered to five basketball teams (two high school, two college, and one professional). Each subject\u27s questionnaire was scored and a Mental Toughness Profile for each athlete was developed. The purpose of this investigation was to determine if there is a difference in personality factors among basketball players at the professional, collegiate, and high school levels. An Analysis Of Variance (ANOVA) was used to determine differences in each of the six personality factors between each of three groups. Also used was a Multiple Comparison Test for the ANOVA. The statistical significance of the results was determined using the .05 level. The results of this investigation indicated that there are personality differences between professional, college, and high school basketball players. A significant difference was demonstrated between all three groups in all the factors except leadership skills. The Multiple Comparison Test revealed that high school and professional basketball players differed significantly in all of the categories except leadership skills. The high school and college players differed significantly only in concentration skills and average scores for the combination of all six subscales. College and professional players differed significantly only in trait self-confidence. One conclusion in this investigation was that the Mental Toughness Profile used was a strong predictor of skill level when comparing professional and high school basketball players

Therapeutic targeting of integrin αvβ6 in breast cancer

BACKGROUND: Integrin ?v?6 promotes migration, invasion, and survival of cancer cells; however, the relevance and role of ?v?6 has yet to be elucidated in breast cancer.METHODS: Protein expression of integrin subunit beta6 (?6) was measured in breast cancers by immunohistochemistry (n &gt; 2000) and ITGB6 mRNA expression measured in the Molecular Taxonomy of Breast Cancer International Consortium dataset. Overall survival was assessed using Kaplan Meier curves, and bioinformatics statistical analyses were performed (Cox proportional hazards model, Wald test, and Chi-square test of association). Using antibody (264RAD) blockade and siRNA knockdown of ?6 in breast cell lines, the role of ?v?6 in Human Epidermal Growth Factor Receptor 2 (HER2) biology (expression, proliferation, invasion, growth in vivo) was assessed by flow cytometry, MTT, Transwell invasion, proximity ligation assay, and xenografts (n ? 3), respectively. A student's t-test was used for two variables; three-plus variables used one-way analysis of variance with Bonferroni's Multiple Comparison Test. Xenograft growth was analyzed using linear mixed model analysis, followed by Wald testing and survival, analyzed using the Log-Rank test. All statistical tests were two sided.RESULTS: High expression of either the mRNA or protein for the integrin subunit ?6 was associated with very poor survival (HR = 1.60, 95% CI = 1.19 to 2.15, P = .002) and increased metastases to distant sites. Co-expression of ?6 and HER2 was associated with worse prognosis (HR = 1.97, 95% CI = 1.16 to 3.35, P = .01). Monotherapy with 264RAD or trastuzumab slowed growth of MCF-7/HER2-18 and BT-474 xenografts similarly (P &lt; .001), but combining 264RAD with trastuzumab effectively stopped tumor growth, even in trastuzumab-resistant MCF-7/HER2-18 xenografts.CONCLUSIONS: Targeting ?v?6 with 264RAD alone or in combination with trastuzumab may provide a novel therapy for treating high-risk and trastuzumab-resistant breast cancer patients.<br/

An advanced expiratory circuit for the recovery of perfluorocarbon liquid from non-saturated perfluorocarbon vapour during partial liquid ventilation: an experimental model

BACKGROUND: The loss of perfluorocarbon (PFC) vapour in the expired gases during partial liquid ventilation should be minimized both to prevent perfluorocarbon vapour entering the atmosphere and to re-use the recovered PFC liquid. Using a substantially modified design of our previously described condenser, we aimed to determine how much perfluorocarbon liquid could be recovered from gases containing PFC and water vapour, at concentrations found during partial liquid ventilation, and to determine if the amount recovered differed with background flow rate (at flow rates suitable for use in neonates). METHODS: The expiratory line of a standard ventilator circuit set-up was mimicked, with the addition of two condensers. Perfluorocarbon (30 mL of FC-77) and water vapour, at concentrations found during partial liquid ventilation, were passed through the circuit at a number of flow rates and the percentage recovery of the liquids measured. RESULTS: From 14.2 mL (47%) to 27.3 mL (91%) of the infused 30 mL of FC-77 was recovered at the flow rates studied. Significantly higher FC-77 recovery was obtained at lower flow rates (ANOVA with Bonferroni's multiple comparison test, p < 0.0001). As a percentage of the theoretical maximum recovery, 64 to 95% of the FC-77 was recovered. Statistically significantly less FC-77 was recovered at 5 Lmin(-1 )(ANOVA with Bonferroni's multiple comparison test, p < 0.0001). Amounts of perfluorocarbon vapour recovered were 47%, 50%, 81% and 91% at flow rates of 10, 5, 2 and 1 Lmin(-1), respectively. CONCLUSION: Using two condensers in series 47% to 91% of perfluorocarbon liquid can be recovered, from gases containing perfluorocarbon and water vapour, at concentrations found during partial liquid ventilation