CAUSES AND IMPACT OF DELAY IN CONSTRUCTION INDUSTRY OF INDIA

2021 ◽  
Vol 8 (1) ◽  
pp. 35-44
Author(s):  
Kranti kumar Myneni
Keyword(s):  
Construction Industry ◽  
Correlation Coefficient ◽  
Construction Projects ◽  
Construction Project ◽  
Rank Correlation ◽  
Construction Stage ◽  
Spearman’S Rank Correlation ◽  
Spearman’S Rank Correlation Coefficient ◽  
Importance Index ◽  
Causes Of Delays

Delays can be well-defined as the escalation of the stipulated time for the completion of the project. Delay is always the major loss to any construction project. In construction projects delay is a very usual thing and it can have an adverse effect on the project’s time and cost. As construction is one of the largest economic activity in India, the effects of delay are still in millions, which surely decreases the GDP of the country. Delay makes the process tardy and management of delay is extremely challenging as most of the projects do not meet the expected requirement and fails to perform within time. Therefore, various types and causes of delays should be studied accurately. There are many researches on construction delays but they talk about the wide-ranging reasons of delay, so there stays a high requirement of a notable and feasible study on delays at different stages of construction process in India. The aim of the paper is to identify the causes of delays at different stages of construction through questionnaire survey in Indian construction industry. Analytical tools used in this research are relative importance index (RII) and spearman’s rank correlation coefficient to rank the sources of delay with respect to its occurrence in the various stages of the construction project. The study concludes based on the correlation coefficient analysis between the construction stages, that the delays associated with before-construction stage is least related, with after-construction stage is third highly related, with construction stage is second highly related and delays associated with average/overall construction is highly related.

scholarly journals Analysis of project success factors in construction industry

2015 ◽  
Vol 24 (1) ◽  
pp. 67-80 ◽  
Author(s):  
Murat GUNDUZ ◽  
Ahmad Mohammed Ali YAHYA
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Success Factors ◽  
Project Success ◽  
Rank Correlation ◽  
Correlation Factor ◽  
Actual Performance ◽  
Critical Success ◽  
Spearman’S Rank Correlation ◽  
Importance Index

A great emphasis has taken place to identify and analyse the factors that have been af­fecting the success and the failure of construction projects in recent decades. As a project-based industry, construction has heavily invested in such research. Moreover, the construction industry suffers the most to meet deadlines and budgets limits. The objective of this paper is to identify the critical success factors in construction industry. The study focused on Middle East region. In order to achieve this objective, 25 project success factors were identified by reviewing related literature. The factors were assessed for their impact and contribution to the actual performance of the project on three criteria: schedule, cost, and quality. Then a questionnaire was developed and sent to dif­ferent experts in the construction industry. The collected data of 111 responses was then analysed statistically by using different tools such as: importance index, Spearman’s rank correlation factor and T-test. As a result, company’s technical capacity and scope and work definition were ranked the most important factors. The results of this research may provide a great assistance to professionals and researchers in identifying the critical factors in the construction industry.

scholarly journals The relationship between the effectiveness of performing technical elements and indicators of static and dynamic balance in young acrobats 6-7 years old

2021 ◽  
Vol 7 (4) ◽  
pp. 58-68
Author(s):  
T. Chernykh ◽  
V. Mulyk ◽  
K. Mulyk ◽  
А. Skaliy ◽  
А. Ostrowski ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Dynamic Equilibrium ◽  
Dynamic Balance ◽  
Rank Correlation ◽  
Young Athletes ◽  
Spearman’S Rank Correlation ◽  
Spearman’S Rank Correlation Coefficient ◽  
Initial Stage ◽  
Equilibrium Test ◽  
The Relationship

Purpose: to determine the relationship between the performance of basic elements and indicators of static and dynamic balance in the training process of young acrobats 6-7 years. Material and methods. The study involved 16 young acrobats at the stage of initial training (age 6-7 years). All parents of the participants gave written consent for the participation of children in the study. The study involved testing the technique of performing basic elements of sports acrobatics and assessing the static and dynamic balance of young athletes. The relationship between (swallow, shoulder blade, forward squat, wheel (sideways overturning), bridges) and static and dynamic equilibrium tests was determined. Spearman's rank correlation coefficient method was used as a method of statistical analysis. Results. It is established that the largest relationship between the performance of basic elements and static balance in the basic exercises of young acrobats have: Romberg's test with the elements "Swallow", "Stand on the shoulders", "Bridge"; Biryuk test with elements "Swallow", "Wheel", "Bridge"; balance "Swallow" with elements "Swallow", "Wheel"; static equilibrium test with the elements "Swallow", "Rack on the shoulders", "Rolling forward with a squat", "Wheel". Reliable values ​​of the correlation coefficient were established between the tests of dynamic balance and the basic elements of sports acrobatics in young athletes 6-7 years, namely: "Swallow", "Flip forward with a squat", "Wheel" and "Bridge". The analysis of special tests of static and dynamic balance in mastering the basic elements of acrobatics at the first stage of long-term training makes it possible to use them to determine the level of coordination capabilities of young athletes and further improve the use of acrobatic exercises. Conclusions. A reliable relationship between the performance of basic exercises and indicators of static and dynamic balance in young acrobats at the initial stage of training. It is shown that the level of static and dynamic balance is of great importance for the assimilation and improvement of basic elements of technology by young acrobats 6-7 years. Static and dynamic balance tests can be used to individually build training programs and young acrobats. It is shown that sports acrobatics is a significant means of developing the balance of children 6-7 years.

scholarly journals The association between parameters of oral mucosal immunity and 25-hydroxyvitamin D in patients with rampant caries

2022 ◽  
Vol 20 (4) ◽  
pp. 32-38
Author(s):  
A. S. Putneva ◽  
T. M. Karavaeva ◽  
M. V. Maksimenya ◽  
P. P. Tereshkov ◽  
M. N. Mishchenko ◽  
...  
Keyword(s):  
Plasma Level ◽  
Correlation Coefficient ◽  
Rank Correlation ◽  
Control Group ◽  
Hydroxyvitamin D ◽  
Spearman’S Rank Correlation ◽  
Spearman’S Rank Correlation Coefficient ◽  
25 Hydroxyvitamin D ◽  
Tgf Β1 ◽  
Rampant Caries

Aim. To determine the saliva level of immunoregulatory proteins in patients with rampant caries and 25-hydroxyvitamin D (25(OH)D) deficiency and evaluate the association of their concentration with 25(OH)D plasma level.Materials and methods. The study was performed in two groups. The experimental group included 15 patients aged 20–22 years with rampant caries and the 25(OH)D plasma level of < 20 ng / ml. The control group encompassed 15 healthy age-matched volunteers with the 25(OH)D plasma level of 20–100 ng / ml. The concentrations of B7.2 (CD86), free active TGF-β1, CTLA-4, PD-1, Tim-3, LAG-3, IGFBP-4, and ICAM-1 were assessed using flow cytometry. The levels of LL-37 and secretory immunoglobulin A (sIgA) were measured using ELISA. The Spearman’s rank correlation coefficient was used to reveal a correlation between the indicated proteins and the 25(OH)D plasma level.Results. A decrease in B7.2 (CD86), PD-1, Tim-3, sIgA, and LL-37 and elevation of IGFBP-4 and ICAM-1 saliva levels were detected in patients with rampant caries and 25-hydroxyvitamin D deficiency. A positive Spearman’s rank correlation coefficient was revealed between plasma 25(OH)D and saliva levels of free active TGF-β1, CTLA4, B7.2 (CD86), LL-37, and sIgA. A negative correlation was revealed between 25(OH)Dand ICAM-1.Conclusion. 25(OH)D deficiency in patients with rampant caries is associated with decreased levels of B7.2 (CD86), PD-1, Tim-3, sIgA, and LL-37 and elevated levels of IGFBP-4 and ICAM-1 in the saliva. 

scholarly journals Dose Correlation of Danggui and Chuanxiong Drug Pairs in the Chinese Medicine Prescription Based on the Copula Function

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Xuan Zhao ◽  
Wei Lin ◽  
Jiawei Li ◽  
Yunhui Chen ◽  
Anamica Patel ◽  
...  
Keyword(s):  
Chinese Medicine ◽  
Traditional Chinese Medicine ◽  
Correlation Coefficient ◽  
Rank Correlation ◽  
Correlation Coefficients ◽  
Copula Function ◽  
Prescription Database ◽  
Irregular Menstruation ◽  
Spearman’S Rank Correlation ◽  
Spearman’S Rank Correlation Coefficient

Dosage is essential for studying the compatibility and effectiveness of traditional Chinese medicine. Danggui and Chuanxiong are widely used in traditional Chinese medicine for ailments and treatment of various disorders. 628 traditional Chinese medicine prescriptions containing Danggui and Chuanxiong were extracted from the self-built prescription database and screened for the three groups of prescriptions, i.e., irregular menstruation, sores, and stroke. We processed and tested the dosage of Danggui and Chuanxiong and selected the optimal copula function, Gumbel copula function, from the Archimedes function family and elliptical copula function family to establish the data model. To establish the presence of a correlation between the dose of Danggui and Chuanxiong, a graph of the joint distribution function of rank correlation coefficients, Kendall’s rank correlation coefficient and Spearman’s rank correlation coefficient, was used. Our results suggest that the model using the Gumbel copula function better reflects the correlation between the dose of Danggui and Chuanxiong. For irregular menstruation, sores, and strokes, Kendall’s rank correlation coefficients were 0.6724, 0.5930, and 0.7757, respectively, and Spearman’s correlation coefficients were 0.8536, 0.7812, and 0.9285, respectively. In all three prescription groups, the dose of Danggui and Chuanxiong was positively correlated, implying that, as the dosage of one drug increases, the dosage of the other increases as well. From the perspective of data mining and mathematical statistics, the use of the copula function model to evaluate the correlation between the prescribed dosage of the two drugs was innovative and provided a new model for the scientific interpretation of the compatibility of traditional drugs. This might also serve to guide the clinical use of traditional Chinese medicine.

Drivers of e-bidding implementation in the Saudi Arabian construction industry

2019 ◽  
Vol 10 (1) ◽  
pp. 16-27
Author(s):  
Ahmed M.Z. Sayed ◽  
Sadi Assaf ◽  
Adel S. Aldosary ◽  
Mohammad A. Hassanain ◽  
Abdullatif Abdallah
Keyword(s):  
Saudi Arabia ◽  
Construction Projects ◽  
Rank Correlation ◽  
Construction Costs ◽  
Content Type ◽  
Significance Level ◽  
Spearman’S Rank Correlation ◽  
Spearman’S Rank Correlation Coefficient ◽  
Key Drivers ◽  
Public Construction

Purpose The purpose of this paper is to identify the key drivers for adopting electronic bidding (e-bidding) systems in public construction projects located in Saudi Arabia. Design/methodology/approach Literature review was undertaken to identify the drivers of e-bidding practices. Nine drivers, classified under four categories, were identified. A questionnaire survey was developed to assess the significance of the identified drivers. Responses were obtained from 20 large contractors, classified as Grade I and II contractors in Saudi Arabia, and 12 governmental authorities, representing owners of construction projects. The drivers were ranked according to their respective significance index (SI) values. Finally, a Spearman’s rank correlation coefficient was employed to ascertain the extent to which the two parties agreed on the significance level of the drivers. Findings Analysis of the identified drivers revealed that the most significant driver was “reduction in the physical storage requirements of bidding paperwork.” Further, a consensus was observed with regards to the significance of the drivers. The findings of the present study highlight the strong potential of widespread e-bidding adoption in Saudi Arabia. It demonstrates the key drivers for the implementation of e-bidding through the perspective of professionals within the context of Saudi Arabia. Originality/value Prior to this study, no previous research has endeavored to assess the drivers of e-bidding adoption in Saudi Arabia. The adoption of e-bidding will benefit organizations through improved efficiencies, which could potentially lower construction costs, thereby contributing to economic growth and benefitting the society at large.

scholarly journals Feature Genes Selection Using Supervised Locally Linear Embedding and Correlation Coefficient for Microarray Classification

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Jiucheng Xu ◽  
Huiyu Mu ◽  
Yun Wang ◽  
Fangzhou Huang
Keyword(s):  
Correlation Coefficient ◽  
Expression Profiles ◽  
Feature Selection Method ◽  
Rank Correlation ◽  
Classification Performance ◽  
Locally Linear Embedding ◽  
Spearman’S Rank Correlation ◽  
Spearman’S Rank Correlation Coefficient ◽  
Linear Embedding ◽  
Locally Linear

The selection of feature genes with high recognition ability from the gene expression profiles has gained great significance in biology. However, most of the existing methods have a high time complexity and poor classification performance. Motivated by this, an effective feature selection method, called supervised locally linear embedding and Spearman’s rank correlation coefficient (SLLE-SC2), is proposed which is based on the concept of locally linear embedding and correlation coefficient algorithms. Supervised locally linear embedding takes into account class label information and improves the classification performance. Furthermore, Spearman’s rank correlation coefficient is used to remove the coexpression genes. The experiment results obtained on four public tumor microarray datasets illustrate that our method is valid and feasible.

scholarly journals Anxiety and depression among adolescent students at higher secondary school

BIBECHANA ◽  
2016 ◽  
Vol 14 ◽  
pp. 103-109 ◽  
Author(s):  
M Bhandari
Keyword(s):  
Academic Performance ◽  
Secondary School ◽  
Correlation Coefficient ◽  
Mental Health Problems ◽  
Rank Correlation ◽  
Anxiety And Depression ◽  
Depression And Anxiety ◽  
Adolescent Students ◽  
Spearman’S Rank Correlation ◽  
Spearman’S Rank Correlation Coefficient

This study was conducted to assess the association of depression and anxiety with selected variables; low academic performance and poor parent adolescent relationship among the adolescent students at Arniko Higher Secondary school at Biratnagar. Beck Depression Inventory (BDI) and Beck Anxiety Inventory (BAI) tools were used for data collection. Spearman’s Rank Correlation Coefficient and Chi Square test were applied to assess the significant variables. The findings of the study revealed that there was significant correlation between total depression and total anxiety score i.e. Spearman’s rank correlation coefficient value was 0.554 (p = 0.000). The study also found that the depression and anxiety were significantly associated with type of family (p =0.005 & p = 0.015).  The depression was significantly associated with academic performance of adolescent students (p = 0.030) and major accident in the family (p =0.009). Similarly, the anxiety was significantly associated with parental fight (p = 0.007), conflict with father (p = 0.019), and death of family member (p = 0.016). It can be concluded that adolescent anxiety and depression are significant mental health problems so further studies are needed to validate the findings. BIBECHANA 14 (2014) 103-109

Sign in / Sign up

Export Citation Format

Share Document