A Simple and Exact Method of Constructing Tolerance Intervals for the One-Way ANOVA with Random Effects

1996 ◽  
Vol 50 (4) ◽  
pp. 319 ◽  
Author(s):  
D. K. Bhaumik ◽  
P. M. Kulkarni
Keyword(s):  
Random Effects ◽  
Exact Method ◽  
Tolerance Intervals ◽  
The One ◽  
One Way Anova

Efektifitas Ekstrak Daun Sirih Hijau (Piper Betle) sebagai Insektisida Nabati terhadap Mortalitas Lalat Rumah (Musca domestica)

2019 ◽  
Vol 10 (2) ◽  
pp. 44-50
Author(s):  
Rinaldi Daswito ◽  
Rima Folentia ◽  
M Yusuf MF
Keyword(s):  
Musca Domestica ◽  
Leaf Extract ◽  
Effective Concentration ◽  
P Value ◽  
Piper Betle ◽  
Microbiology Laboratory ◽  
House Flies ◽  
Betel Leaf ◽  
The One ◽  
One Way Anova

One of the diseases that can be transmitted by flies is diarrhea. Green betel leaf contains essential oils, chavicol, arecoline, phenol, and tannins which function as plant-based insecticides. This study aimed to determine the effectiveness of green betel leaf extract (Piper betel) as a plant-based insecticide on the number of mortality of house flies (Musca domestica). The research was an experimental study used After Only Design used the One Way Anova test with a 95% confidence level. The samples used were 360 ​​house flies. Each treatment of 30 house flies with 4 repetitions and used three concentrations of green betel leaf extract (25%, 50%, 75%). The study was conducted at the Chemistry and Microbiology Laboratory of Health Polytechnic Tanjungpinang, while the location of the fly collection was at the Tokojo Garbage Collection Station in Bintan Regency. The number of mortality of house flies at a concentration of 25% was 81 heads (67.5%), 50% concentrations were 93 heads (77.5%), and at a concentration of 75% were 103 heads (85.83%). There was an effect of green betel leaf extract on the mortality of house flies (p-value 0.0001 <0.05) with the most effective concentration of 75%. Further research is needed to obtain a finished product utilizing green betel leaf extract as a vegetable insecticide, especially in controlling the fly vector. Need further research on the use of green betel leaf extract as a vegetable insecticide controlling the fly vector by taking into account the amount of spraying and the age of the fly.   Keywords: Green betel leaf extract , organic insecticide, houseflies

scholarly journals Biodiversity of butterflies in endosulfan-affected areas of Kerala, India

2020 ◽  
Vol 81 (1) ◽  
Author(s):  
K. N. Raghavendra ◽  
Kumar Arvind ◽  
G. K. Anushree ◽  
Tony Grace
Keyword(s):  
Monsoon Season ◽  
Winter Season ◽  
Wiener Index ◽  
Long Term Effects ◽  
Affected Area ◽  
Butterfly Assemblages ◽  
Abundance And Diversity ◽  
The One ◽  
One Way Anova

Abstract Background Butterflies are considered as bio-indicators of a healthy and diversified ecosystem. Endosulfan was sprayed indiscriminately in large plantations of Kasaragod district, Kerala which had caused serious threats to the ecosystem. In this study, we surveyed the butterflies for their abundance and diversity in three differentially endosulfan-affected areas viz., Enmakaje—highly affected area, Periye—moderately affected area, Padanakkad—unaffected area, carried out between the end of the monsoon season and the start of the winter season, lasting approximately 100 days. Seven variables viz., butterfly abundance (N), species richness (S), Simpson’s reciprocal index (D), the Shannon–Wiener index (H′), the exponential of the Shannon–Wiener index (expH′), Pielou’s evenness (J) and species evenness (D/S), related to species diversity were estimated, followed by the one-way ANOVA (F = 25.01, p < 0.001) and the Kruskal-Wallis test (H = 22.59, p < 0.001). Results A population of three different butterfly assemblages comprised of 2300 butterflies which represented 61 species were encountered. Our results showed that Enmakaje displayed significantly lower butterfly diversity and abundance, compared to the other two communities. Conclusion So far, this is the first study concerning the effect of endosulfan on the biodiversity of butterfly in the affected areas of Kasaragod, Kerala, India. This study may present an indirect assessment of the persisting effects of endosulfan in the affected areas, suggesting its long-term effects on the ecosystem.

scholarly journals Gradient boosting for linear mixed models

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Colin Griesbach ◽  
Benjamin Säfken ◽  
Elisabeth Waldmann
Keyword(s):  
Random Effects ◽  
Mixed Models ◽  
Selection Procedure ◽  
Classification Theory ◽  
Gradient Boosting ◽  
Random Structure ◽  
Boosting Algorithm ◽  
The One ◽  
Biased Estimates ◽  
Selection Of

Abstract Gradient boosting from the field of statistical learning is widely known as a powerful framework for estimation and selection of predictor effects in various regression models by adapting concepts from classification theory. Current boosting approaches also offer methods accounting for random effects and thus enable prediction of mixed models for longitudinal and clustered data. However, these approaches include several flaws resulting in unbalanced effect selection with falsely induced shrinkage and a low convergence rate on the one hand and biased estimates of the random effects on the other hand. We therefore propose a new boosting algorithm which explicitly accounts for the random structure by excluding it from the selection procedure, properly correcting the random effects estimates and in addition providing likelihood-based estimation of the random effects variance structure. The new algorithm offers an organic and unbiased fitting approach, which is shown via simulations and data examples.

scholarly journals Evaluation of Marginal Misfit of Metal Frameworks Welded by Gas-Torch, Laser, and Tungsten Inert Gas Methods

2018 ◽  
Vol 2018 ◽  
pp. 1-6
Author(s):  
Wilson Matsumoto ◽  
Paula Pastana Beraldo ◽  
Rossana Pereira de Almeida ◽  
Ana Paula Macedo ◽  
Beatriz Roque Kubata ◽  
...  
Keyword(s):  
Inert Gas ◽  
Marginal Fit ◽  
Nickel Chromium ◽  
Before And After ◽  
Master Model ◽  
The One ◽  
Flexural Resistance ◽  
One Way Anova ◽  
Silicone Matrix ◽  
And Tungsten

Purpose. The objective of this study was to evaluate the marginal fit and the flexural resistance of nickel-chromium frameworks welded by different techniques, gas-torch, laser, and tungsten inert gas (TIG), compared with that of frameworks made via one-piece casting. Methods. To evaluate the marginal fit, a master model was fabricated simulating four implants. Transfers and replicas were used to transfer the positions of the implants to the model, using a silicone matrix. The bars were waxed up and casted. Three assessments of misfit were performed for each implant using a stereomicroscope before and after welding in two predetermined regions, totaling six readings for each implant. To evaluate the flexural resistance, one group was made casting the specimens in one piece. Other 3 groups using gas-torch, laser, and TIG welding techniques were made after sectioned transversally. The data showed normal distribution and two-way ANOVA for marginal fit and one-way ANOVA for flexural resistance, and Tukey’s posttest (α=0.05) was performed. Results. For the marginal fit, the three welding methods presented similar results and were different from one-piece casting. For the flexural resistance, significant differences were observed among the studied groups (p<0.001), and the one-piece group presented higher resistance compared to the three welding techniques. Conclusions. Within the limits of this study, the three welding techniques yielded similar misfit results, and the laser and TIG techniques presented similar flexural resistance but lower than gas-torch and one-piece casting.

scholarly journals RELEVANCE OF VO2max CONSUMPTION IN ELITE BULGARIAN TAEKWONDO COMPETITORS

2021 ◽  
Vol 2 (2021) ◽  
pp. 28-39
Author(s):  
Dimitar Avramov ◽  
Keyword(s):  
Heart Rate ◽  
Aerobic Fitness ◽  
Treadmill Test ◽  
Male Athletes ◽  
Weight Category ◽  
National Team ◽  
Significant Difference ◽  
The One ◽  
Male Subjects ◽  
One Way Anova

The aim of this study was to determine aerobic fitness through the VO2max treadmill test of elite Bulgarian taekwondo players with international results, and to determine whether the aerobic system had an effect upon the sports result in taekwondo. Fourteen elite taekwondo athletes, members of the Bulgarian national team (8 male and 6 female) were tested using a continuous progressive treadmill test. Physiological characteristics such as maximal oxygen uptake(VO2max), blood lactate and heart rate were measured. The male athletes recorded 58.2±3.4 ml kg–1 min–1 and the female 46.0±2.8 ml kg–1 min–1. The lactate level reached its highest at the 6’ after the VO2max with results for the males of 11.5±3.7 (mmol l-1) and 9.9±4.1 (mmol l-1) for the females respectively. A comparison between our results, regarding VO2max and previously reported was made using the One-way Anova for independent samples. It showed no significant difference between the male subjects (58.2±3.4 versus 60.7±3.3 ml kg(-1) min(-1), p>.05) and significant difference between the female ones (46.0±2.8 versus 49.8±2.8 ml kg(-1) min(-1), p<.05). Investigated also was the number of kicks executed by the winner of -49 kg weight category and her direct opponents during the 2019 Grand Prix Sofia. It was discovered that the winner kicked an average of 86.25 times per match and her kicks during the Grand Prix Sofia accumulated to 390 in total. It is our conclusion that the aerobic fitness does not play a significant role in taekwondo.

scholarly journals The developmental variations of the sagitta otolith in the young and mature male of a hermaphrodite polynemidae fish, Eleutheronema tetradactylum (Shaw, 1804)

2021 ◽  
Vol 61 ◽  
pp. e20216178
Author(s):  
Soumen Roy ◽  
Itika Bardhan
Keyword(s):  
Body Size ◽  
Fork Length ◽  
The Body ◽  
Size Groups ◽  
Protandrous Hermaphrodite ◽  
Ultrastructural Characteristics ◽  
Developmental Variations ◽  
The One ◽  
First Time ◽  
One Way Anova

The Eleutheronema tetradactylum is a protandrous, hermaphrodite, marine perciformes fish. The body length of this fish acts as an important diagnostic marker for male and female discrimination. The present study describes for the first time the ultrastructural characteristics on the medial surface of the sagitta otolith in different body size groups of males of E. tetradactylum (Polynemidae: Perciformes) using scanning electron microscopy. The sagitta is a spindle-shaped structure that includes a well-developed rostrum and a poorly developed antirostrum. The sulcus is ostio-pseudocaudal type, almost straight and devoid of the collum. The ostium is a well-developed, vase-shaped structure. The cauda includes the colliculum and a well-developed caudal bulb with several distinct growth stripes. The length of the caudal bulb is significantly correlated to the growth of the body size of the fish. The excisura major is indistinct and the excisura minor is absent. The cristae are distinct on both sides of the sulcus. The one-way ANOVA test revealed that the development of several sagitta features shows significant differences in various body size groups of E. tetradactylum. The growth of the sagitta length is more closely related to the fork length than the sagitta width. Therefore, the sagitta length and the caudal bulb length can be used as important predictors to evaluate the fish size. The cauda region of the sagitta in E. tetradactylum is unique as well as more decorative than those of another Polynemidae fish and other hermaphrodite, marine perciformes fishes. The sagitta characteristics of E. tetradactylum might be advantageous in the identification of the sex and the taxonomy of the hermaphrodite fish species.

scholarly journals Decision Theory for the Variance Ratio in One-Way ANOVA with Random Effects

2015 ◽  
Vol 38 (1) ◽  
pp. 181-207
Author(s):  
Nicholas T. Longford ◽  
Mercedes Andrade
Keyword(s):  
Decision Theory ◽  
Random Effects ◽  
Variance Ratio ◽  
One Way Anova

scholarly journals effectiveness testing of l-carnitine on the quality of spermatozoa and testosterone hormone in white rats (Rattus norvegicus) feeding with high fat

2021 ◽  
Vol 4 (1) ◽  
pp. 102-109
Author(s):  
Ni Wayan Sukma Antari ◽  
Ida Ayu Manik Damayanti ◽  
Nadya Treesna Wulansari
Keyword(s):  
Rattus Norvegicus ◽  
Membrane Integrity ◽  
White Rats ◽  
Long Time ◽  
Statistical Program ◽  
High Doses ◽  
The One ◽  
Dose Variation ◽  
One Way Anova

This study aims to determine the increase in the quality of spermatozoa and testosterone after giving L-carnitine to white rats (Rattus norvegicus). This study was conducted by giving L-carnitine as a treatment for 42 days in white rats with a dose variation of 100 mg/kg bw, 150 mg/kg bw, and 200 mg/kg bw and user controls as a comparison. The variables observed in this study were the quality of spermatozoa, namely: morphology, motility, viability, membrane integrity, and seeing the levels of the hormone testosterone. The research data were processed using a computer statistical program (SPSS 22.0 for Windows) using the One Way Anova test. The results showed that giving high doses of L-carnitine supplements for a long time could cause decreased spermatozoa quality, namely: morphology, motility, viability, membrane integrity and decreased levels of the hormone testosterone.

The One-Way ANOVA Procedure

2021 ◽  
pp. 173-184
Author(s):  
Darren George ◽  
Paul Mallery
Keyword(s):  
The One ◽  
One Way Anova
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