Application of Hypotheses Theory during Creep Curves Assesment

2017 ◽  
Vol 1142 ◽  
pp. 367-370
Author(s):  
Martin Reznicek ◽  
Lenka Hylova ◽  
Michal Stanek ◽  
Martin Ovsik
Keyword(s):  
Creep Test ◽  
Confidence Level ◽  
Subjective Assessment ◽  
Measured Data ◽  
Whitney Test ◽  
Current State ◽  
Mann Whitney Test ◽  
Creep Curves

This article is focused on a test assesment with a low repeatability, which is typical of its financial and time severity. In the introduction of this work the assessment of the current state of the solved problem concentrated on the creep test assesment is carried out, which is typical of its low repeatability. These results are subsequently graphically confronted with the subjective assessment of the observer and using Mann-Whitney test. This test is there used for finding if measured data come from the same basic file or come from the selected confidence level. The results show the significance of using this test, which is calculated with certain probability.

Use of Theory of Hypothesis at Evaluation of Creep Curves

2015 ◽  
Vol 752-753 ◽  
pp. 312-316
Author(s):  
Martin Reznicek ◽  
Vladimír Pata ◽  
David Manas ◽  
Michal Stanek ◽  
Adam Skrobak ◽  
...  
Keyword(s):  
Confidence Level ◽  
Subjective Evaluation ◽  
Measured Data ◽  
Creep Tests ◽  
Creep Properties ◽  
Whitney Test ◽  
Current State ◽  
Mann Whitney Test ◽  
Basic Set ◽  
Creep Curves

This article focuses on the evaluation of tests with a small repeatability which are characterized by their financial or time demands. The beginning of the article assess the current state of the problem and different approaches to it, focusing on the evaluation of creep tests characterized especially by their very typical little repeatability. Then the article describes the method for testing the creep properties of the irradiated material at raised temperatures. Next, the results are graphically confronted with the subjective evaluation of the observer and using the Mann-Whitney test. This test is used to determine whether the measured data comes from the same basic set or originate with the chosen confidence level. The results show the significance of the use of this test which is calculated with a certain probability.

scholarly journals Debris Extrusion Using Reciproc Blue and XP Endo Shaper Systems in Root Canal Retreatment

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Taher AlOmari ◽  
Rami Al-Fodeh ◽  
Ruba Mustafa ◽  
Hamza El-Farraj ◽  
Waheeb Khaled ◽  
...  
Keyword(s):  
Confidence Level ◽  
Root Canal ◽  
Chi Square ◽  
Whitney Test ◽  
Gutta Percha ◽  
Mann Whitney Test ◽  
Root Canal Retreatment ◽  
Chi Square Test ◽  
Warm Vertical Compaction

This study aimed at assessing the performance of Reciproc Blue (RB) and XP Endo Shaper (XPS), used for canal retreatment on extracted teeth, in terms of debris extrusion and obturating materials removal. Thirty mandibular premolars were prepared to ProTaper X2 file, obturated using warm vertical compaction, and then incubated for 28 days at 100% humidity at 37°C. Teeth were randomly assigned into two groups, according to the system used for retreatment (RB and XPS). During retreatment, debris extruded beyond the apex was collected in preweighed Eppendorf tubes, and the retreatment time was measured. Afterward, the teeth were longitudinally sectioned to assess the remaining obturating materials. Data were statistically analyzed using the Mann–Whitney test and chi-square test at a 95% confidence level. All the samples had extruded debris at varying weights ranging from 0.125 mg to 3.680 mg. XPS extruded less debris than RB, but no difference was detected (Mann–Whitney test; P > 0.05 ). RB and XPS required 54.9 ± 17.9 and 22.3 ± 9.3 seconds to perform retreatment procedures, respectively (Mann–Whitney test; P < 0.05 ). The sealer was found in all the samples. Compared to the RB group, fewer samples with remaining gutta-percha were found in the XPS group (Chi-square test; P < 0.05 ). None of the files fractured during the retreatment procedure. The tested files appear to extrude debris beyond the apex. Although XPS was able to remove the gutta-percha completely from the majority of the canals, it was unable to remove the sealer.

scholarly journals PENGEMBANGAN WEB INTRANET FISIKA UNTUK MENINGKATKAN PENGUASAAN KONSEP DAN KEMAMPUAN PEMECAHAN MASALAH SISWA SMKN 2 PRAYA TENGAH

2013 ◽  
Vol 8 (2) ◽  
Author(s):  
I Komang Yogi Sukmantara ◽  
Aris Doyan ◽  
Gunawan Gunawan
Keyword(s):  
Problem Solving ◽  
Confidence Level ◽  
Control Group ◽  
Learning Material ◽  
Problem Solving Skills ◽  
Whitney Test ◽  
A Value ◽  
Mann Whitney Test ◽  
Significant Difference ◽  
Experimental Group

Abstrak: Penelitian ini bertujuan untuk mengembangkan media pembelajaran web intranet fisika dan mengetahui pengaruhnya terhadap penguasaan konsep dan kemampuan pemecahan masalah siswa. Penelitian ini menggunakan desain penelitian dan pengembangan model Borg dan Gall yang dimodifikasi menjadi 3 tahap, yaitu tahap studi pendahuluan, tahap pengembangan media/produk, dan tahap uji coba media/produk. Media pembelajaran web intranet fisika dikembangkan pada materi usaha, energi, dan daya. Kedua kelas dianalisis menggunakan uji perbedaan rata-rata (Uji t atau Uji Mann-Whitney) dan skor gain ternormalisasi (N-gain). Uji Mann-Whitney penguasaan konsep menghasilkan nilai sebesar 0,047 pada taraf kepercayaan 95% yang berarti terdapat perbedaan yang signifikan antara peningkatan penguasaan konsep kelas eksperimen dibandingkan dengan kelas kontrol. Rata-rata N-gain penguasaan konsep kelas eksperimen adalah 53,73% (sedang) sedangkan rata-rata N-gain kelas kontrol adalah  47,16% (sedang). Uji Mann-Whitney kemampuan pemecahan masalah menghasilkan nilai sebesar 0,34 pada taraf kepercayaan 95% yang berarti tidak terdapat perbedaan signifikan antara kemampuan pemecahan masalah kelas eksperimen dengan kelas kontrol. Rata-rata N-gain kelas eksperimen adalah 48,56% (sedang) sedangkan rata-rata N-gain kelas kontrol adalah 48,16% (sedang).Kata kunci: Web Intranet Fisika, Penguasaan Konsep, dan Kemampuan Pemecahan Masalah. Abstract: The research was aimed at developing a learning media of physics intranet web and knowing its impacts to the concept comprehension and problem solving skills. The research used a research design and development model of Borg and Gall which was modified into three stages; those were stage of preliminary study, stage of media/product development, and stage of media/product testing. The learning material of work, energy and power in the experimental group used the physics intranet web, while the control group did not use it. The data from both groups were analyzed using difference of means test (t-test or Mann-Whitney test) and normalized gain score (N-gain). Mann-Whitney test on concept comprehension generated a value of 0,047 at confidence level of 95%, meaning there was a significant difference between the improvement of concept comprehension in the experimental group and that in the control group. The means of N-gain on concept comprehension of the experimental group was 53,73% (medium), while the means of N-gain of the control group was 47,16% (medium). Mann-Whitney test on problem solving skills generated a value of 0,34 at the confidence level of 95%, meaning there was not a significant difference between the problem solving skill in the experimental group and that in the control group.  The means of N-gain of the experimental group was 48,56% (medium), while the means of N-gain of the control group was 48,16% (medium).Key words: Physics Intranet Web, Concept Comprehension and Problem Solving Skills.

Efektifitas Penggunaan Metode Pembelajaran Simulasi Dengan Latihan Terhadap Keterampilan Pengisian Partograf Pada Mahasiswa Semester II Di Prodi Kebidanan (D-III) Universitas Kadiri Tahun 2015

2017 ◽  
Vol 4 (1) ◽  
pp. 12
Author(s):  
Dessy Lutfiasari ◽  
Mahmudah Mahmudah
Keyword(s):  
Current Method ◽  
Skills Training ◽  
Health Sciences ◽  
Control Group ◽  
Learning Methods ◽  
Control Group Design ◽  
Significance Level ◽  
Whitney Test ◽  
Mann Whitney Test ◽  
Training Simulation

The use of the current method of learning very big influence on the growth and development of students' creativity and interest for all subjects to be taught, especially in the use of partograf. From interviews to the 10 students of IV semester Prodi Midwifery (D-III) Kadiri University is known that 4 (40%) of students said it was understood, 4 (40%) of other students say they are confused and 2 (20%) of them said that he was a student not familiar with partograf. This shows the lack of understanding of students in filling partograph. The research objective is to determine the effectiveness of the use of learning methods for skills training simulation with filling partograph the second semester students in Midwifery (D-III) Kadiri University Faculty of Health Sciences in 2015. The research design used is pre experiment with design Static Group Comparison/Posttest Only Control Group Design. The population studied were all students of the second semester in Midwifery (D-III) Faculty of Health Sciences University of Kadiri numbered 50 students and sampling techniques Federer totaled 32 students. This is a research instrument partograph sheet. Results of the study were analyzed using the Mann Whitney test with a significance level of 0.05 were used.The results showed 7 respondents (46.7%) are adept at using partograf with simulation teaching methods and 6 respondents (40.0%) are adept at using partograph with practice learning methods. Data were analyzed by Mann Whitney test obtained ρ = 0.965; α = 0.05 means that H0 is accepted and H1 rejected. This means there is no difference in the effective use of learning methods for skills training simulation with partograph filling. Based on the results of this study are expected to choose the method of learning as a learning method in charging partograph because both methods equally effective.; Keywords: simulation methods, drilling methods, partograph filling

scholarly journals Pilot Study of Acupuncture’s Antispasmodic Effect on Upper Gastrointestinal Tract during Endoscopic Submucosal Dissection for Early Gastric Cancer: Controlled Clinical Trial

2021 ◽  
Vol 10 (14) ◽  
pp. 3050
Author(s):  
Masao Suzuki ◽  
Naoto Ishizaki ◽  
Takumi Kayo ◽  
Taiga Furuta ◽  
Ryo Igarashi ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Gastrointestinal Tract ◽  
Endoscopic Submucosal Dissection ◽  
Controlled Trial ◽  
Upper Gastrointestinal Tract ◽  
Controlled Clinical Trial ◽  
Whitney Test ◽  
Submucosal Dissection ◽  
Mann Whitney Test ◽  
Upper Gastrointestinal

A prospective study was conducted in patients with early-stage gastric cancer to determine the efficacy and safety of acupuncture stimulation as an antispasmodic compared with conventional medication during the procedure of endoscopic submucosal dissection (ESD) of the upper gastrointestinal tract. This study was a prospective single blinded quasi-randomized controlled trial. Seventy-three patients who were scheduled to undergo ESD for gastric cancer at Aizu Medical Center between 19 February 2016 and 30 June 2016 were assessed for eligibility for the study. Sixty out of 73 patients were included in the study and assigned into two intervention groups: medication group (MG) and acupuncture group (AG). Ease of the procedure was evaluated using modified NIWA classification (MNC) by endoscopist considering the frequency and amplitude of the upper gastrointestinal peristalsis. For the statistical analysis, Mann–Whitney test was used to compare the differences of MNC values (baseline and end of procedure) between two groups. The difference of MNC found in the AG (−2.00 (−3.0 to −2.0)) was significantly greater than that in the MG (−1.00 (−2.0 to −1.0), p < 0.0001, Mann–Whitney test). We consider that acupuncture to the abdomen could be an alternative antispasmodic method during upper gastrointestinal endoscopic procedure.

scholarly journals Analysis of the drivers and benefits of BIM incorporation into quantity surveying profession

2018 ◽  
Vol 16 (5) ◽  
pp. 750-766 ◽  
Author(s):  
Solomon Olusola Babatunde ◽  
Damilola Ekundayo ◽  
Olubola Babalola ◽  
Jumoke Aduramigba Jimoh
Keyword(s):  
Undergraduate Students ◽  
Practical Implication ◽  
Empirical Studies ◽  
Information Modeling ◽  
Content Type ◽  
Whitney Test ◽  
Mann Whitney Test ◽  
Significant Difference ◽  
Building Information ◽  
Quantity Surveying

Purpose Building information modeling (BIM) inclusion in education pedagogy is crucial in preparing skilled graduates for employment in the construction industry. Against this backdrop, studies on BIM education abound in architecture, engineering and construction (AEC) programmes in higher education institutions (HEIs). However, there are limited empirical studies on BIM potentials in the quantity surveying (QS) profession in HEIs, particularly in developing countries. The purpose of this study is to identify and assess the BIM drivers and benefits as important to the QS profession using an empirical approach. Design/methodology/approach A comprehensive literature review was conducted to identify the BIM drivers and benefits in relation to the QS profession, which was used to design a questionnaire. To capture a broad perception, a questionnaire survey was carried out which targeted the academia and final year undergraduate students from two selected universities offering QS honour degree programmes in Nigeria. Data collected were analysed using mean score, standard deviation and Mann–Whitney test. Findings The study identified 12 BIM drivers in relation to the QS profession and the analysis of the ranking revealed that almost all the identified BIM drivers are considered by respondents as important. The study further identified 14 BIM benefits and the analysis of the ranking indicated that all the identified BIM benefits are considered as important. The results of the Mann–Whitney test indicated a slight statistically significant difference, particularly in one of the selected universities on the ranking of the BIM drivers and benefits as important to the QS profession. Practical implication The findings of the study provide empirical evidence on the current perceptions of the drivers and benefits of BIM to QS academia and students as they explore the concept for the advancement of QS profession. Originality/value This study would provide practical insights to use BIM for QS practice. Also, this study would contribute to improving the QS graduates and professional quantity surveyors understanding of the BIM knowledge applicable to QS profession.

scholarly journals C cells in the thyroid of pinealectomized rats

2003 ◽  
Vol 58 (1) ◽  
pp. 21-26
Author(s):  
Marcus Aurelho de Lima ◽  
Lilian Margareth Biagioni de Lima ◽  
Leandro Luís Lopes Freitas ◽  
Patrícia Fernanda Toledo Barbosa ◽  
Maria de Fátima Borges ◽  
...  
Keyword(s):  
Thyroid Tissue ◽  
Male Rats ◽  
C Cells ◽  
Test Results ◽  
Whitney Test ◽  
Mann Whitney Test ◽  
Outbred Strain ◽  
Rat Thyroid ◽  
Number Of Cells

PURPOSE: To study quantitatively C cells in the thyroids of non-isogenic rats to determine the possible effects of pinealectomy on the number of these cells, and consequently on the synthesis and secretion of calcitonin. METHODS: Twenty male rats of an outbred strain (200-300 g) were used in the present study. One group of 10 animals was pinealectomized 50 days prior to sacrifice. Thyroid tissue was stained for calcitonin (Dako Corporation) at a 1:1500 dilution. The number of C cells observed was expressed as number of cells/cm². Data were analyzed statistically by Mann-Whitney test. RESULTS: The number of C cells in pinealectomized and normal animals ranged from 489 to 2084 per cm² and 227 to 1584 per cm², respectively, a difference that was statistically significant (P <0.05). CONCLUSIONS: These results showed consistent differences in the number of C cells after pinealectomy when compared to controls. We believe that pinealectomy increases the number of C cells in the rat thyroid.

scholarly journals PERBEDAAN PENGARUH EFEK AKUT INSTRUMENT ASSISSTED SOFT TISSUE MOBILIZATION (IASTM) DAN SELF MYOFASCIAL RELEASE (SMFR) UNTUK MENINGKATKAN FLEKSIBILITAS OTOT HAMSTRING

2019 ◽  
Vol 3 (2) ◽  
pp. 9-23
Author(s):  
Wijianto . ◽  
Nizar Wazdi
Keyword(s):  
Soft Tissue ◽  
Range Of Motion ◽  
T Test ◽  
Myofascial Release ◽  
Whitney Test ◽  
Mann Whitney Test ◽  
Soft Tissue Mobilization ◽  
Paired T Test

Latar Belakang:  Instrumen Assisted Soft Tissue Mobilization (IASTM) merupakan prosedur terapi yang mana menggunakan instrumen untuk secara mekanik menstimulus struktur jaringan lunak untuk mengurangi nyeri otot, ketidaknyamanan, dan meningkatkan secara keseluruhan mobilitas dan fungsi Self Myofascial Release (SMFR) merupakan salah satu teknik manual terapi dengan cara memberikan tekanan pada otot dan fascia yang bertujuan untuk menambah Range of Motion (ROM), mengurangi nyeri, dan meningkatkan fungsi. Tujuan: Tujuan dari penelitian ini adalah untuk mengetahui efek akut perubahan fleksibilitas otot hamstring setelah diberikan IASTM dan SMFR, juga mengetahui adanya perbedaan efek akut antara pemberian IASTM dan SMFR pada perubahan fleksibilitas otot hamtring. Metode: Penelitian eksperimen dengan membandingan pre dan post tes dari dua kelompok yang berbeda perlakuan. Kelompok pertama diberikan perlakuan teknik IASTM, kelompok kedua diberikan perlakuan SMFR.  Data yang dikumpulkan dianalisa menggunakan paired t-test dan mann-whitney test. Hasil: Hasil penelitian menunjukkan efek akut IASTM terhadap fleksibilitas otot hamstring (p = 0,001), efek akut SMFR terhadap fleksibilitas otot hamstring  (p = 0,000), Perbedaan pengaruh antara passive dan active MFR terhadap ketegangan otot (p = 0,134). Kesimpulan: Terdapat peningkatan fleksibilitas otot hamstring pada grup 1 dan grup 2. Tidak ada beda pengaruh yang signifikan antara pemberian IASTM atau SMFR terhadap fleksibilitas otot hamstring.  Kata Kunci: Hamstring, instrumen assisted soft tissue mobilization, fleksibilitas, self  myofascial release.

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