Particle rounding in beach gravels

1969 ◽  
Vol 106 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Brian J. Bluck
Keyword(s):  
Standard Deviation ◽  
Frequency Distribution ◽  
Size Range ◽  
High Standard ◽  
Size Reduction ◽  
Actual Data ◽  
High Standard Deviation ◽  
Reduction Processes ◽  
Mean Size ◽  
The Relationship

SUMMARYSplitting, crushing and spalling which occur when boulders move against each other, generate fine material and so give rise to angular large and small sizes. The nature of the rounding process can be deduced from the analysis of moments of the roundness frequency distribution of the size range 4–128 mm. A low standard deviation indicates the dominance of one process—either abrasion or breakdown; a high standard deviation indicates the presence of both. The relationship between mean roundness, standard deviation of roundness, skewness of roundness and mean size allows for an analysis of the size reduction processes at work on the sediment; and for a comparison between the reactions of different rocks. A model, based on actual data, is given for the evolution of roundness of limestone clasts on a beach.

ANALISIS KETIMPANGAN PRODUKTIVITAS DAN DUALISME KETENAGAKERJAAN DI PROVINSI BENGKULU

2021 ◽  
Vol 2 (2) ◽  
pp. 150-169
Author(s):  
Armelly Armelly ◽  
Novi Tri Putri ◽  
Retno Agustina Ekaputri ◽  
Lela Rospida
Keyword(s):  
Standard Deviation ◽  
Labor Productivity ◽  
Descriptive Analysis ◽  
High Standard ◽  
Formal Sector ◽  
High Standard Deviation ◽  
Informal Workers ◽  
Deviation Rate ◽  
Employment Data ◽  
Very High

The purpose of this study is to analyze labor productivity inequality and labor dualism in Bengkulu Province. The method used is descriptive analysis, equipped with class typology and elasticity of employment. We are using employment data from BPS publications. The results show that by dividing business fields into 17 sectors in 2018 and 2019, labor productivity inequality is awfully unequal, which is indicated by a very high standard deviation rate. Meanwhile, labor dualism is led by informal workers by a percentage of over 60%. More workers with primary education are absorbed in the informal sector, whereas educated workers are mostly taken in the formal sector. The highest coefficient of labor absorption elasticity for legal workers occurred in 2016 (3.14) and for informal workers in 2015 (1.73).Keywords: labor dualism, labor productivity

scholarly journals Stock Price Forecast Accuracy and Recommendation Profitability of Financial Magazines

2019 ◽  
Vol 7 (4) ◽  
pp. 58 ◽  
Author(s):  
Tiberius ◽  
Lisiecki
Keyword(s):  
Standard Deviation ◽  
Stock Price ◽  
Forecast Accuracy ◽  
High Standard ◽  
Fundamental Analysis ◽  
Excess Returns ◽  
High Standard Deviation ◽  
Price Forecast ◽  
Private Households ◽  
Very High

In this study, we analyze the forecast accuracy and profitability of buy recommendations published in five major German financial magazines for private households based on fundamental analysis. The results show a high average forecast accuracy but with a very high standard deviation, which indicates poor forecast accuracy with regard to individual stocks. The recommendation profitability slightly exceeds the performance of the MSCI World index. Considering the involved risk, which is represented by a high standard deviation, the excess returns appear to be insufficient.

COMPARISON OF VARIOUS AMI DOLYTIC HEPARIN ASSAYS: REPORT OF A COLLABORATIVE STUDY

1987 ◽  
Author(s):  
A Sternberger ◽  
S Haas ◽  
K Breddin ◽  
G Blümel
Keyword(s):  
Clinical Trials ◽  
Standard Deviation ◽  
Collaborative Study ◽  
High Standard ◽  
Scientific Development ◽  
Controlled Study ◽  
High Standard Deviation ◽  
Development Group

The authors performed a controlled study to compare commercially available amidolytic heparin assays based on anti-Xa or anti-I la systems. All participants (see below) were provided with the same batch of all heparin preparations and reagents including homogenous plasma preparation. In addition plasma was spiked with the various unfractionated (n=2) as well as lmwh- (n=5) and heparinoid preparation (n=l). The four university laboratories analyzed all heparin preparations that are registered or used in clinical trials in FRG (n=8). The two testkit producers analyzed registered heparin preparations and the heparin producer their brand only. The study was recently completed and the data analysed and collected. The first evaluation revealed that the amidolytic anti-I la assay is insensitive for lmwh and heparinoids. Determination of unfractionated heparins is not accurate below 0.5 units of the corresponding standard. The Xa-methods are more sensitive for lmwh and heparinoids, however these methods also reveal a high standard deviation. Estimation of concentrations below 0.5 units of all tested heparin preparations is questionable.The authors are indented for active cooperation to Prof. Dr. K. Andrassy (Med. Univ. Heidelberg), Dr. M. Biegholdt (MIDY LABAZ), Dr. G. Dertinger (Sandoz AG), Dr. VJ. Feller (Braun Melsungen AG), Dr. P. Friberger (Kabi Vitrum Stockholm), Dr. P. Hell stern (Univ. Klinik Homburg), Dr. D. G. Meulemann (Organon Scientific Development Group), Dr. X. Muller (Nordmarkwerke), Dr. Zimmer (Boehringer Mannheim GmbH).

Reliability of the Minimum Masking Level as Outcome Variable in Tinnitus Clinical Research

2020 ◽  
Vol 29 (3) ◽  
pp. 429-435
Author(s):  
Patricia C. Mancini ◽  
Richard S. Tyler ◽  
Hyung Jin Jun ◽  
Tang-Chuan Wang ◽  
Helena Ji ◽  
...  
Keyword(s):  
Standard Deviation ◽  
High Frequency ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Outcome Variable ◽  
Reliable Estimate ◽  
Moderate Correlation ◽  
Trained Subjects ◽  
The Relationship ◽  
Minimum Intensity

Purpose The minimum masking level (MML) is the minimum intensity of a stimulus required to just totally mask the tinnitus. Treatments aimed at reducing the tinnitus itself should attempt to measure the magnitude of the tinnitus. The objective of this study was to evaluate the reliability of the MML. Method Sample consisted of 59 tinnitus patients who reported stable tinnitus. We obtained MML measures on two visits, separated by about 2–3 weeks. We used two noise types: speech-shaped noise and high-frequency emphasis noise. We also investigated the relationship between the MML and tinnitus loudness estimates and the Tinnitus Handicap Questionnaire (THQ). Results There were differences across the different noise types. The within-session standard deviation averaged across subjects varied between 1.3 and 1.8 dB. Across the two sessions, the Pearson correlation coefficients, range was r = .84. There was a weak relationship between the dB SL MML and loudness, and between the MML and the THQ. A moderate correlation ( r = .44) was found between the THQ and loudness estimates. Conclusions We conclude that the dB SL MML can be a reliable estimate of tinnitus magnitude, with expected standard deviations in trained subjects of about 1.5 dB. It appears that the dB SL MML and loudness estimates are not closely related.

Small Project Management Strategy and its Relationship to Satisfaction on Life as Recognized by its Employees

2020 ◽  
Vol 8 (1) ◽  
pp. 34-61
Author(s):  
Neama Mostafa RaKaban ◽  
Hanaa Saeed Salama
Keyword(s):  
Project Management ◽  
Standard Deviation ◽  
Young People ◽  
Management Strategy ◽  
Satisfaction With Life ◽  
Management Strategies ◽  
Social Situation ◽  
The Social ◽  
Level Of Significance ◽  
The Relationship

The research aims to study the relationship between the management strategies of the small projects of the workers in their dimensions: (Project phase strategy, making decisions, the project management strategy of financial production, Marketing Productive Management Strategy, the strategy of managing productive legal projects) with satisfaction with life dimensions: (Psychological compatibility, Self-compliance, Work environment, and Social compatibility) . The research sample consisted of 102 persons working in four small projects, "Ceramics - Bamboo - Serma - Hand Carpets". They were selected in a pesky-purpose manner from the employees of these projects in Sakiet Abu Shaara village, Sentris, Menoufia Governorate and 10th of Ramadan City. "General data form", "Project Management Strategies scale", and "measure of satisfaction with life" were applied. The study followed the descriptive and analytical approach. The data were categorized and analyzed using appropriate statistical methods through the SPSS statistical program such as number and percentages, arithmetic mean, standard deviation, T-test, Pearson correlation coefficient, Chi-square and F-test. The most important results are related to the relationship between the project management strategy and the financial productivity and self-compliance at the level of significance of 0.01, which means that the realization of the requirements of the project in terms of finance and meet the needs, resulting in self-compatibility.  There is also a correlation between the project management strategy and the business environment at the level of 0.01 meaning that whenever the project needs to be met in terms of funding and meet the needs of the project as this leads to compatibility with the place of residence of the project and the surrounding environment, there is an inverse correlation Between the social situation and the decision-making at the level of significance of 0.01, which means that the greater the number of employees are married the less ability to make the decisions needed in those small projects, which means the impact of the ability to make decisions on the social situation of the individual. There were statistically significant differences between the averages of the different projects in terms of the overall project management strategy according to the dwelling. The highest value was for the medium in the ceramics project and the lowest in the hand carpets where the ceramic represents the highest average 2.000 while the carpets represent the lowest average by 1.809 at the level of significance 0.1. There were significant differences between the mean of the various projects in terms of satisfaction with total life according to the dimension of psychological compatibility and the highest value for the average in the hand carpet project where the results showed that the average and standard deviation of hand carpets is (23.745 ± 4.38) The recommendations of the government, decision-makers and ministries to establish a culture of entrepreneurship and motivate young people to set up private projects through the media, paying attention to the enactment of laws on small projects to motivate young people to establish and develop small and micro enterprises, In various stages to ensure the success and continuity of the project.

scholarly journals Classroom Instructional Practices of Islamic Education Teachers in the Basic Stage at Al-Mafraq Governorate and Its Relation to Gender and Experience Variables

2015 ◽  
Vol 7 (3) ◽  
pp. 77
Author(s):  
Nosiba Ali Al-Mousa
Keyword(s):  
Standard Deviation ◽  
Instructional Practices ◽  
Reliability And Validity ◽  
T Test ◽  
Islamic Education ◽  
Test Results ◽  
Social Standard ◽  
Basic Stage ◽  
The Relationship

<p>This study aimed to identify Classroom Instructional Practices of Islamic education teachers<br />at basic stage in AL- Mafraq and to identify the relationship between these practices and<br />gender and experience variables as well as interaction between them. The researcher prepared<br />a scale which its reliability and validity were checked to measure the level of classroom<br />instructional practices. The sample of study which consisted of (64) teachers (male and<br />female) was chosen randomly.<br />Data were collected and analyzed statistically using means, standard deviation, t-test and<br />Tuky test. Results revealed that the classroom studying practices of Islamic education<br />teachers in basic stage in AL- Mafraq agreed with acceptable educational and social standard<br />(80%), whereas the percentage of the classroom instructional practices was (81-89%). The<br />results also revealed lack of statistical significant differences in the classroom instructional<br />practices of Islamic education teachers in the basic stage in AL- Mafraq due to the gender<br />variable but there were statistical significant differences at (0,05=OC) in classroom<br />instructional practices due to experience variable in favor of respondents with experiences ( 4<br />years and less) and 10 years and more).Additionally, there were no statistical significant<br />differences in the classroom instructional practices of Islamic education teachers due to<br />interaction between gender and experience variable. The researcher recommended conducting<br />further studies with different variables.</p>

scholarly journals Objective measurement of physical activity in Macaca fascicularis

1982 ◽  
Vol 16 (3) ◽  
pp. 240-243
Author(s):  
Wayne T. Corbett ◽  
Harry M. Schey ◽  
A. W. Green
Keyword(s):  
Physical Activity ◽  
Standard Deviation ◽  
Macaca Fascicularis ◽  
Living Environment ◽  
Activity Levels ◽  
Free Living ◽  
Activity Measurements ◽  
Active Intermediate ◽  
The Mean ◽  
The Relationship

The mean and standard deviation over 24 h for 3 groups of animals - active, intermediate and inactive - in physical activity units were 10948 ± 3360, 2611 ± 1973 and 484 ± 316 respectively. The differences were significant ( P = 0·004), demonstrating the ability of the method to distinguish between groups that can be visibly differentiated. The small within-animal physical activity standard deviation (18·85 PAU) obtained in another group, suggests that it also yields reliable physical activity measurements for non-human primates. The monitoring device used can discriminate between individual nonhuman primate physical activity levels in a free-living environment and does not alter daily behaviour. This makes possible the study of the relationship between physical activity and atherosclerosis in nonhuman primates.

scholarly journals An Investigation into Change in Agricultural and Industrial Products Output-price Relationships Drawing from Nepalese Experience

2020 ◽  
pp. 12-19
Author(s):  
Ghan Shyam Dhakal
Keyword(s):  
Standard Deviation ◽  
Negative Correlation ◽  
Agricultural Sector ◽  
Agricultural Products ◽  
Fiscal Year ◽  
Annual Growth Rate ◽  
Industrial Products ◽  
Industrial Sectors ◽  
Low Degree ◽  
The Relationship

Purpose: This research article explored the relationship between change in output and domestic price of both agricultural and industrial products and the variability or consistency of the annual growth rate of change in price and output of both agricultural and industrial sectors of Nepal. Objectives: The research aimed to establish the relationship between change in the price of agricultural products and change in the price of industrial products in Nepal. Methods: The study applied descriptive and analytical approaches to measure the relationship or correlation between changes in output and prices of products in the agricultural and industrial sectors. The parameters were analysed by comparing the standard deviation and coefficient of variation. The relation of agricultural and industrial product output with price is established by using a simple correlation analysis. Limitations: Based on secondary data collected from various economic surveys of Nepal covering 17 years from fiscal year 2002/03 to 2018/19. It measured the relationship between the annual change in price and output of agricultural and industrial production using simple statistical tools like mean, standard deviation, and correlation. Results: It was found that there is a moderate positive correlation between the change in price of agricultural and industrial products. Similarly, there is a low degree negative correlation between change in output and price in both the agricultural and industrial sectors. Implications: There was a positive relationship between the price of agricultural products and industrial products. Therefore, it is necessary to give high priority to the development of the agricultural sector. Industrial development is impossible without the development of the agricultural sector because they are interdependent with each other. The agricultural sector and industrial sector are uplifted simultaneously. There was a low degree negative correlation between price and output of the product of both the agricultural and industrial sectors. Therefore, output increasing activities must be performed by private and public sectors.

scholarly journals Lessons from Sweden: How Australia Can Learn from Swedish Industrialised Building

2016 ◽  
Author(s):  
Duncan William Maxwell ◽  
Mathew Aitchison
Keyword(s):  
High Standard ◽  
Building Industry ◽  
Construction Costs ◽  
Colonial Era ◽  
Building Systems ◽  
Post War ◽  
The Relationship ◽  
Efficiency And Productivity ◽  
Living Cost

Over the past decade, Australia has witnessed increased interest in industrialised building, particularly in the production of housing. This has happened under many different banners, including: prefabricated, modular, transportable and offsite construction methodologies. This interest has grown from a combination of factors, including: increased rate of housing construction and density; rising property and construction costs; the desire for increased efficiency and productivity; and a concern for the quality and sustainability of building systems. Historically, Australia has played an episodic role in the emergence of prefab and transportable buildings since the colonial era, but it does not have a longstanding industrialised building industry. In this context, an analysis of the experiences of North American, European and Japanese examples, provides valuable insights. This paper focuses on Swedenäó»s approach to industrialised building and the lessons it holds for the emerging Australian sector. Sweden represents a valuable case study because of similarities between the two countries, including: the high standard of living, cost of labour, and design and quality expectations; along with geographic and demographic similarities. Conversely, stark differences between the national situation also co-exist, notably climate, business approaches, political outlook, and cultural factors. In the 1950s, Swedish companies exported prefab houses to Australia to combat the Post-War housing shortage, which also supplies a historical dimension to the comparison. Most importantly, Sweden boasts a longstanding industrialised building industry, both in terms of practice and theory. This paper will survey and compare the Swedish industry, and its potential relevance for Australia. Areas of discussion include: the relationship between industry and academy (practice and theory); the diversity of technique and methodologies and how they may be adapted; platform thinking (technical and operational); the staged industrialisation of conventional practices; and the importance of a socially, environmental and design-led practice of building.

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