scholarly journals Study on Deformation Characteristics and Mechanism of Q3 Loess Microstructrue Before and After Wetting 

Author(s):  
Xiaojun YIN ◽  
Lanmin WANG

Abstract Microstructure characteristics of loess is an effective way to study the physical and mechanical characteristics of soil under different conditions. Water content in sample of Q3 loess is about 25% ,which was first subjected to X-Ray test to determine the main chemical components in loess and calculated the proportion in the sample. Test analysis shows the particle structure of the loess belonged to the granular structure type. CT scanning tests were performed on the sample before and after wetting. The changes of total number of pores, the maximum pore volume and the position of the centroid of pore of the sample were analyzed before and after wetting. The results shows that the soluble salts of loess have been dissolved after wetting.The volume of the pores of loess have been changed. Some increased, some decreased and others closed in volume. The change of the number of pores indicates that the sample formed obvious saturated zone, transition zone, conduction zone and humid zones after wetting. These results reveals the deformation characteristics and mechanism of Q3 loess microstructure.

2014 ◽  
Vol 4 (2) ◽  
pp. 121
Author(s):  
Masdalena Masdalena ◽  
Aftoni Sutanto

This research aims to determine whether there are differences in stock returns before and after the announcement of the rights issue on the Indonesia Stock Exchange 2009-2013 period. This study was conducted on 43 companies listed in the Indonesia Stock Exchange right issues in the year 2009 to 2013, with a purposive sampling method. This research used the t-test analysis test by way Paired Sample Test with the observation period (event window) there are 20 days, t-10 (10 days prior to the announcement of the rights issue) and t + 10 (10 days after the announcement of the right issue). The announcement of the test results are known to contain information because the announcement led to market tereaksinya indicated by the presence pf abnormal return that occurred and the results of t-test menunjukkan significance value 0.036<α0.05 to distinction stock returns 10 days prior to the stock return 10 days after the announcement of the right issue. This that information is not leaked.


2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Johan Irmansyah ◽  
Muhammad Ridwan Lubis ◽  
Andi Gilang Permadi ◽  
Nune Wire Panji Sakti

Penelitian ini bertujuan untuk: (1) menghasilkan sebuah model latihan imagery untuk peningkatan ketepatan floating service pada atlet voli pantai NTB, dan (2) mengetahui keefektifan model latihan imagery untuk peningkatan ketepatan floating service atlet voli pantai NTB. Penelitian ini menggunakan metode penelitian dan pengembangan atau yang sering disebut research and development yang mana digunakan untuk menghasilkan sebuah produk yang diinginkan. Hasil penelitian ini, yaitu studi pendahuluan, uji skala kecil dan skala besar yang telah dilakukan dengan percobaaan floating service dan instrument yang telah teruji validitas dan reliabilitasnya, dinyatakan bahwa penilaian para ahli terhadap model latihan imagery untuk meningkatkan ketepatan floating service dikatakan ‘layak’ untuk diterapkan di lapangan. Untuk uji efektifitas produk akhir, dari hasil analisis uji t menggunakan Paired Sample Test, menunjukkan bahwa peningkatan pretest – posttest ketepatan floating service dengan nilai t sebesar 8.104 dan signifikansi 0.000 < 0.05, maka dapat disimpulkan bahwa peningkatan floating service sebelum dan sesudah diberikan latihan imagery mendapatkan peningkatan yang signifikan atau ada pengaruh yang signifikan dari latihan imagery untuk peningkatan ketepatan floating service. Exercise model imagery to improve the accuracy of floating service in beach volleyball athlete AbstractThis study aims to: (1) produce an exercise model of imagery to improve the accuracy of floating service in NTB beach volleyball athletes, and (2) determine the effectiveness an exercise model of imagery to improve the accuracy of floating service in NTB beach volleyball athletes. This research uses research and development methods or often called research and development which is used to produce the desired product. The results of this study, namely a preliminary study, small scale and large scale tests that have been carried out with a trial of floating services and instruments that have been tested for validity and reliability, stated that experts' assessment of imagery training models to improve the accuracy of floating services is said to be 'feasible' in the field. To test the effectiveness of the final product, the results of the t-test analysis using Paired Sample Test, showed that the increase in pretest-posttest floating service accuracy with a t value of 8,104 and significance of 0,000 <0.05, it can be concluded that the increase in floating service before and after imagery training was given get a significant increase or there is a significant effect of imagery training on improving the accuracy of floating services.


2018 ◽  
Vol 1 (2) ◽  
pp. 64
Author(s):  
Irfan Ido

ABSTRACTThis study aims to find out: the existence, income, and income of the local workforce of PT. Putra Intisultra Perkasa before and after the enactment of the smelter development policy. This research was conducted in Konawe Selatan District. The study was conducted by the 27 families who were a local workforce of PT. Putra Intisultra Perkasa. The analysis used is the Paired Sample Test t-test analysis and descriptive analysis.The results of this study indicate that: The existence of a local workforce PT. Putra Intisultra Perkasa after the enactment of the smelter development policy requires local workers to survive and find work after losing their profession, known to the average local worker PT. The son of Intisultra after the layoffs worked as a traditional rock miner in C and continued to work in the mining sector instead of returning to work in the agricultural sector. The income generated by the respondents of the local workforce PT. Putra Intisultra Perkasa before the enactment of the smelter development policy averaged Rp. 1,851,000 / month, revenue after the enactment of the smelter development policy, which averaged 1,525,773 (Rupiah / Month). There is a significant difference between the income of the local workforce of PT. Putra Intisultra Perkasa, before and after the enactment of the smelter development policy.Keywords: existence, income, local workforce


2018 ◽  
Vol 1 ◽  
pp. 107
Author(s):  
Adi Heryadi ◽  
Evianawati Evianawati

This study aims to prove whether transformational leadership training is effective for building anti-corruption attitudes of villages in Kebonharjo village, subdistrict Samigaluh Kulonprogo. This research is an experimental research with one group pre and posttest design.Subject design is 17 people from village of 21 candidates registered. Measuring tool used in this research is the scale of anti-corruption perception made by the researcher referring to the 9 anti-corruption values with the value of reliability coefficient of 0.871. The module used as an intervention made by the researcher refers to the transformational leadership dimension (Bass, 1990). The data collected is analyzed by statistical analysis of different test Paired Sample Test. Initial data collection results obtained sign value of 0.770 which means> 0.05 or no significant difference between anti-corruption perception score between before and after training. After a period of less than 1 (one) month then conducted again the measurement of follow-up of the study subjects in the measurement again using the scale of anti-corruption perception. The results of the second data collection were analysed with Paired Samples Test and obtained the value of 0.623 sign meaning p> 0.05 or no significant difference between post test data with follow-up data so that the hypothesis of this study was rejected.


Author(s):  
Ghaniy Ridha Prima ◽  
Hermanto Siregar ◽  
Ferry Syarifuddin

The purpose of this study is to provide empirical evidence of the effects of the Loan to Value (LTV) policy on the financial performance of property and real estate companies listed on the Indonesia Stock Exchange (IDX). The sample selection uses a purposive sampling method of 42 property and real estate companies that meet the criteria. The research period is divided into 2 namely before the Loan to Value policy (2013-2014) and after the Loan to Value policy (2016-2017) with the Paired Sample t Test analysis technique. The test results show if the current ratio, Return on Asset, Return on Equity and Debt to Asset have significant differences between before and after the LTV policy is applied. While the fast ratio, cash ratio, net profit margin and Debt to Equity did not show a significant difference. Keywords: Financial Performance, Loan to Value, Property and Real Estate, Profitability Ratio, Liquidity Ratio, Solvability Ratio.


2020 ◽  
Vol 54 (5) ◽  
pp. 15-22
Author(s):  
I.M. Larina ◽  
◽  
D.N. Kashirina ◽  
K.S. Kireev ◽  
A.I. Grigoriev ◽  
...  

We performed the first ever comparative analysis of modifications in the proteome, ionogram and some other blood plasma biochemical indices of 18 male cosmonauts (44 ± 6 years of age) before and after maiden or repeated long-term missions to the Russian segment of the International space station (ISS RS). Levels of proteins, substrates and ions as well as chemical components were measured using the LC-MS-based proteomics and routine biochemical techniques. A total of 256 to 281 indices were investigated with the methods of descriptive statistic, regression analysis, and access to bioinformatics resources. It was shown that blood indices recovery from the maiden and repeated missions reflects changes in the body systems and goes at a various speed. The results of measurements made prior to launch and on day 7 after landing are dependent on the number of missions. The bioinformatics techniques showed that after maiden missions both the mediator proteins of alkaline phosphatase (AP) and blood proteins with reliably changing concentrations are associated with the bio-processes including stress, metabolism and DNA reparation, apoptosis, catabolism and proteolysis. During early re-adaptation from repeated missions the AP level was affected by bone remodeling, phosphorylation, angiogenesis and coagulation cascade suggesting a distinct and urgent trigger of the processes of bone structure and mineralization.


2014 ◽  
Vol 1 (3) ◽  
pp. 200-204 ◽  
Author(s):  
Levi Tina Sari ◽  
Nevy Norma Renityas ◽  
Wahyu Wibisono

Elderly in the age of 60 or above is a natural process that can not be avoided where the life of man as a human being is limited by a rule of nature. As a result of the aging process, the blood vessels become stiff and affect the left ventricular wall reduce its elasticity, resulting in a progressive increase of blood pressure. The treatment of hypertension in addition to pharmacological therapy could also use non-pharmacological therapies such as reflexology massage.  Method: The research design used in this study was pre-experimental using one group pretest-posttest approach. In this research, the researchers measured blood pressure before and after the treatment (reflexology massage). The sample of this study was 20 respondents using purposive sampling. This research used statistical t-test analysis test, because it had a scale ratio data. Result : The result of t-test showed that p <0.0001, means that there was significantly different result before and after treatment with reflexology massage on the feet with a medium timber. Discussion : It is expected that people with hypertension do the feet reflexology massage in order to taking medication because can lower systolic blood pressure.


2017 ◽  
Vol 5 (6) ◽  
pp. 196
Author(s):  
Sezer S Yonca ◽  
Çelikel B Engin ◽  
Yücel A Serdar ◽  
Karadağ Mustafa ◽  
Savucu Yüksel

The aim of this research is to evaluate the change in the hand grip strength of the male arm wrestlers before and after a unit of exercise. The participants of the research consist of sportsmen (n=16) of Fırat University arm wrestling team in 18-25 age group.Within the scope of the research, all of the tests and measurements (age, length, body weight, sports age, hand grip strength) were carried out on the experimental group before they started training and the same tests were repeated just after the exercises. A unit of exercise program consisted of warm up, cool down, and 5 sets of weight lifting with 12 repetitions and intensity of 70% that were in that day’s plan and program applied by the trainer.While descriptive statistics were adopted in the statistical analysis, to identify the significance level between the hand grip strength before and after the exercise paired sample t-test analysis was used. The significance level was shown as α = 0.05 in the analyses. While the right hand grip strength of the sportsmen (n=16) was statistically significant at 51.1062 ± 1.69709 before and 49.0437 ± 1.71770 (p=0.000) after the exercise, the left hand grip strength was statistically significant at 46.9000 ± 1.16179 before and 45.8063 ± 1.30078 (p=0.000) after the exercise.In conclusion, it was observed that there is a statistically significant negative decline in the hand grip strength of the arm wrestling sportsmen after a unit of exercise and it can be said that it is because of the exhaustion expected after the exercise.


2019 ◽  
Vol 4 (3) ◽  
pp. 303
Author(s):  
Eko Saputra Nurdiansa

The objective of the study is to know whether or not three phase technique   has   significant   effect   on   students’ reading comprehension. The design of this study was quasi experimental research. The population of the study were students who were taking Reading 1 class in English study program at Halu Oleo University in academic year of  2016-2017.  By  employing  purposive  sampling technique the researcher chose class A as the sample of this study. Instrument of study was reading comprehension test in form of multiple choices questions. The result of this study confirmed that the teaching reading  by  using  three  phase  reading  technique  could give significant effect on the students’ reading comprehension. Based on the Paired Sample Test, it was found that there was a significant difference of students’ reading comprehension score before and after they were given treatment by using three phase reading technique procedure in Reading 1 class with the significant degree of 0.013. Furthermore, there was also significant improvement in students' mean score (79.78). Therefore, the proposed hypothesis which stated “three phase reading technique has significant effect on students’ reading comprehension” was accepted. Keywords: Three Phase Technique, Reading Comprehension


2019 ◽  
Vol 5 (3) ◽  
pp. 137
Author(s):  
Soeharjoto Soekapdjo ◽  
Debbie Aryani Tribudhi ◽  
Lucky Nugroho

Purpose of this study is to predict trend value of collecting ZIS with fintech and non fintech. Data taken from BAZNAs from 2002-2017 and using descriptive statistics with linear trend and parabolic, inference statistic with paired sample test. Result shown that fintech trend like parabolic and non fintech like linear. There is a significant and power full correlation at ZIS revenue with fintech and non fintech. Thus, there is difference average of ZIS revenue before and after using fintech. Using SIMBA fintech will be affecting the revenue of ZIS. Average prediction of ZIS collecting funds from 2018-2025 with fintech is greater than using non fintech. Average growth of ZIS revenue with fintech is 9.98 percent and 5.78 percent with non fintech.


Sign in / Sign up

Export Citation Format

Share Document