Go/No-Go Decision Model for Owners Using Exhaustive CHAID and QUEST Decision Tree Algorithms

Go/no-go execution decisions are one of the most important strategic decisions for owners during the early stages of construction projects. Restructuring the process of decision-making during these early stages may have sustainable results in the long run. The purpose of this paper is to establish proper go/no-go decision-tree models for owners. The decision-tree models were developed using Exhaustive Chi-square Automatic Interaction Detector (Exhaustive CHAID) and Quick, Unbiased, Efficient Statistical Tree (QUEST) algorithms. Twenty-three go/no-go key factors were collected through an extensive literature review. These factors were divided into four main risk categories: organizational, project/technical, legal, and financial/economic. In a questionnaire distributed among the construction professionals, the go/no-go variables were asked to be ranked according to their perceived significance. Split-sample validation was applied for testing and measuring the accuracy of the Exhaustive CHAID and QUEST models. Moreover, Spearman’s rank correlation and analysis of variance (ANOVA) tests were employed to identify the statistical features of the 100 responses received. The result of this study benchmarks the current assessment models and develops a simple and user-friendly decision model for owners. The model is expected to evaluate anticipated risk factors in the project and reduce the level of uncertainty. The Exhaustive CHAID and QUEST models are validated by a case study. This paper contributes to the current body of knowledge by identifying the factors that have the biggest effect on an owner’s decision and introducing Exhaustive CHAID and QUEST decision-tree models for go/no-go decisions for the first time, to the best of the authors’ knowledge. From the “sustainability” viewpoint, this study is significant since the decisions of the owner, based on a rigorous model, will yield sustainable and efficient projects.

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KNOWLEDGE AND ATTITUDE REGARDING SPACING METHODS OF CONTRACEPTION AMONG PRIMIPARA MOTHERS OF KOLHAPUR

10.36106/ijsr/2533924 ◽

2021 ◽

pp. 70-71

Author(s):

Jyoti Dhanpal Aurwade ◽

Manisha Bijapurkar

Keyword(s):

Rank Correlation ◽

Knowledge Score ◽

Descriptive Study ◽

Attitude Scale ◽

Favorable Attitude ◽

Attitude Score ◽

Chi Square ◽

Poor Knowledge ◽

Spearman’S Rank Correlation ◽

Knowledge And Attitude

Background: Almost half of the pregnancies are usually unintended. Inappropriate spacing between pregnancies can lead to maternal and neonatal complications. Awareness and education plays, a major role in combating this issue. This study was aimed to assess the knowledge and attitude regarding spacing methods of contraception among primipara mothers of Kolhapur. Material and methods: The descriptive study was performed on 110 primipara mothers admitted in hospitals of Kolhapur. A pre-validated study tool consisting of a questionnaire and a Likert attitude scale was used to assess knowledge and attitude of participants. Chi-square and Spearman's rank correlation test was used to nd the association and correlation between variables. Results: Good knowledge score was observed in 5.45% participants whereas, average and poor knowledge score found in 70% and 24.55% of participants respectively. A favorable attitude was noted in 53.6% of mothers and moderately favorable attitudes and unfavorable attitudes were observed in 43.6% and 2.7% mothers respectively. Asignicant positive correlation was observed between the knowledge score and attitude score -05 of primipara mothers (r=0.379, P=4.326e ). A signicant association of knowledge score (P<0.01) and attitude score (P<0.01) with the sociodemography of the participants was observed. Conclusion: Most of the primipara mothers had a favorable attitude regarding spacing methods of contraception but they are lacking in knowledge. The Socio-demography of the participants was signicantly associated with knowledge and attitude scores.

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Dentists’ knowledge of fluoride cariostatic mechanisms

Nowa Stomatologia ◽

10.25121/ns.2018.23.3.102 ◽

2018 ◽

Vol 23 (3) ◽

Author(s):

Urszula Kaczmarek ◽

Wojciech Kowalczyk ◽

Dariusz Gozdowski ◽

Dorota Olczak-Kowalczyk

Keyword(s):

Rank Correlation ◽

Bone Fragility ◽

Caries Prevention ◽

Water Fluoridation ◽

Chi Square ◽

Significance Level ◽

Spearman’S Rank Correlation ◽

Spearman’S Rank Correlation Coefficient ◽

Chi Square Test ◽

Almost All

Introduction. The use of age- and risk-adjusted caries prevention requires up-to-date knowledge on the cariostatic effects of fluoride, as well as the methods and safety of fluoride prophylaxis. Aim. The aim of the study was to assess dentists’ knowledge of the safety and mechanism of anticaries effects of fluoride. Material and methods. An anonymous questionnaire was conducted among 212 dentists participating in dental training. The questions included in the questionnaire related to knowledge about water fluoridation, fluoride cariostatic mechanisms and the safety of fluoride prophylaxis. The chi-square test and the Spearman’s rank correlation coefficient were used for statistical analysis. A significance level of 0.05 was used. Results. Incorrect knowledge about water fluoridation was demonstrated by 26.9% of respondents in the country and 16.0% of respondents in Europe. Most respondents (80.7%) reported higher efficacy of exogenous vs endogenous anticaries approaches, and more than half of respondents (59.0%) considered the processes of remineralisation and demineralisation as the most important anticaries activity. Almost all respondents (95.7%) agreed that the use of fluoride for caries prevention is controversial, mainly due to its dose-dependent therapeutic or toxic effects (85.4%). According to about 20% of respondents, cariostatic fluoride doses have adverse effects on the general health, mainly in the form of bone fragility (10.4%). Conclusions. Lack of correct knowledge about the dominant cariostatic effects of fluoride may result in the choice of an inappropriate preventive method or avoiding local application of fluoride preparations for fear of adverse systemic effects, which may in turn lead to increased caries prevalence in a given population.

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An Analysis of the Condition of the Tourist Brand and Tourist Attractiveness of the Podkarpackie Region Based on the Brand Asset Valuator Model

Polish Journal of Sport and Tourism ◽

10.2478/pjst-2019-0012 ◽

2019 ◽

Vol 26 (2) ◽

pp. 34-39

Author(s):

Beata Gierczak-Korzeniowska

Keyword(s):

Applied Research ◽

Rank Correlation ◽

Point Of View ◽

Chi Square ◽

Spearman’S Rank Correlation ◽

Spearman’S Rank Correlation Coefficient ◽

Ecological Aspects ◽

Historical Heritage ◽

Term Management

AbstractIntroduction. There are many factors which determine the attractiveness of a region for tourists. However, such assessments are, relatively rarely, a result of the analysis of the presence and condition of regional tourist brands and their perception among visitors. The analysis and assessment of the condition of a brand can be carried out using the BAV (Brand Asset Valuator). This is an extremely interesting and useful tool which explains the dynamics of behaviour of brands on the market and diagnoses their “health”, supporting the process of their long-term management.Materials and methods. On the basis of the results of a pilot study, an attempt is made to measure the tourist attractiveness of the Podkarpackie region through the assessment of regional tourist brands and their features which are important from the point of view of the inhabitants of the region. The BAV model was used to analyse 32 tourist products. The applied research methods include the Mann-Whitney test, Spearman’s rank correlation coefficient, and the chi-square independence test.Results. The mapped data analysis based on the BAV model showed that 16 out of 32 products assessed were located in the leadership quadrant. The majority of the remaining products were in the development or decline phases.Conclusions. The presence of branded tourist products and their number have an impact on the tourist attractiveness of the region. The following aspects of the region were considered the most attractive: nature (natural surroundings, natural values, and ecological aspects), heritage (historical heritage and monuments and presentation of important past events), and tourism (tourism and recreation offerings).

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Use of Social Media for Knowledge Sharing Among Students

Asian Journal of Information Science and Technology ◽

10.51983/ajist-2018.8.2.174 ◽

2018 ◽

Vol 8 (2) ◽

pp. 65-75

Author(s):

Funmilola O. Omotayo ◽

Olugboyega M. Salami

Keyword(s):

Social Media ◽

Knowledge Sharing ◽

Significant Relationship ◽

Rank Correlation ◽

Sampling Technique ◽

Analysis Data ◽

Chi Square ◽

Spearman’S Rank Correlation ◽

Use Of Social Media ◽

Set Up

The world of research requires researchers, students to share knowledge. With the invention of social media, knowledge sharing process has been more effective and easier. This study examined the usage of social media for knowledge sharing among students of the Polytechnic Ibadan, Nigeria. Descriptive survey research design was adopted, while stratified random sampling technique was adopted to select the students. Four hundred and thirty four copies of questionnaire were administered, while 301 were retrieved and 271 copies found useful for data analysis. Data was analysed using frequencies and percentage distribution, Spearman’s rank correlation, Kruskal Wallis test, and Chi-Square. Findings reveal that Facebook and Whatsapp are the widely used social media tools for knowledge sharing by the students. The study found significant relationship between social influence and attitude towards using social media for knowledge sharing, as well as significant relationship between attitude and use of social media for knowledge sharing.The study recommends that institutions should exploit the proliferation of social media and its use to set up off-class student-student and student-lecturer discussion groups, which could help encourage and promote knowledge sharing, and thereby help students in achieving good academic outcomes.

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The first dental visit of a 3-year-old child. Reasons and socioeconomic determinants

New Medicine ◽

10.25121/newmed.2020.24.1.26 ◽

2020 ◽

Vol 24 (1) ◽

Author(s):

Piotr Sobiech ◽

Anna Turska-Szybka ◽

Angelika Kobylińska ◽

Dorota Olczak-Kowalczyk

Keyword(s):

Rank Correlation ◽

Medical Personnel ◽

First Year ◽

Dental Visit ◽

Chi Square ◽

Entire Study ◽

Level Of Education ◽

Spearman’S Rank Correlation ◽

Carious Lesions ◽

The Family

Introduction. Early childhood caries affects 41.1% of Polish 3-year-olds. If left untreated, it can affect overall health, cause local infections, and reduce quality of life. Objective. To evaluate the first dental visits of children in the first three years of life in the Warsaw agglomeration. Material and methods. A questionnaire survey of parents/legal guardians of children aged 12 to 36 months, living in the Warsaw agglomeration was conducted. The questionnaire included questions about socioeconomic factors (level of education and age of both parents, number of children in the family, economic level of the family) and the child's first dental visit (age and reason for visiting). Statistical analysis was performed on data obtained from correctly completed questionnaires (Spearman's rank correlation coefficient to assess the relationships between selected variables and using the chi-square test to compare the percentages, p <0.05). Results. 496 out of 827 returned questionnaires were included in the analysis. The mean age of the children was 24.16 ± 6.92 months. 249 (50.2%) children visited the dentist. The most common reasons for the first visit were: dental check-up (47.4%), tooth trauma (19.7%) and the presence of carious lesions (13.3%). The first visits due to trauma were usually reported by children aged 12-18 months. Only 57 (11.5%) children visited the dentist in the first year of life. Among them, the most frequent reason for the visit was check-up (34; 6.9% of the entire study group). There was an increasing frequency of the first dental visit with the age of the child, as well as a negative correlation between the level of education of parents and the visit caused by toothache, abscess or the presence of carious lesions. Tooth decay as a reason of first dental visit was also associated with the lower age of the mother. Conclusions. The recommendation to schedule the first dental visit in the first year of a child's life is not satisfactorily implemented in Poland. It is necessary to disseminate recommendations among the medical personnel providing pediatric and dental care.

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Clinical, Instrumental, Serological and Histological Findings Suggest That Hemophilia B May be Less Severe Than Hemophilia A

Blood ◽

10.1182/blood.v126.23.4682.4682 ◽

2015 ◽

Vol 126 (23) ◽

pp. 4682-4682

Author(s):

Giancarlo Castaman ◽

Daniela Melchiorre ◽

Silvia Linari

Keyword(s):

Synovial Tissue ◽

Hemophilia A ◽

Conflicts Of Interest ◽

Severe Disease ◽

Rank Correlation ◽

Mean Value ◽

Hemophilia B ◽

Severe Hemophilia ◽

Chi Square ◽

Spearman’S Rank Correlation

Abstract Background: Recent evidences suggest that patients with severe hemophilia B (HB) may have a less severe disease compared to severe hemophilia A (HA). Objectives: to investigate clinical, radiological, laboratory and histological differences in the arthropathy of severe HA and HB. Patients/Methods: 70 HA and 35 HB patients with at least one joint bleeding were consecutively enrolled. In all patients were assessed: joint bleedings (<10, 10-50, >50), regimen of treatment (prophylaxis/on demand), WFH, Pettersson and ultrasound (US) scores, serum sRANKL and OPG. Expression of RANK, RANKL and OPG was also evaluated in synovial tissue from 18 HA and 4 HB patients. Chi-square test, T-test, Mann-Whitney and Spearman's rank correlation coefficient were performed. Results: The percentage of patients with either 10-50 or >50 hemarthrosis was greater in HA than in HB (p< 0.001 and p = 0.03, respectively); that with <10 hemarthrosis was higher in HB (p < 0.0001). The mean value of WFH (36.6 vs 20.2;p <0.0001) and US scores (10.9 vs 4.3;p <0.0001) were significantly higher in HA patients. Serum OPG and s RANKL were decreased in HA versus HB (p<0.0001 and p=0.006, respectively) and also in HA patients with>50 hemarthrosis. The expression of OPG was markedly reduced in synovial tissue from HA patients. Conclusions: The reduced number of hemarthrosis, the lower WFH and US scores and higher OPG levels in serum and expression in synovial tissue in HB suggest that HB is a less severe disease than HA. OPG reduction seems to play a pivotal role in the progression of arthropathy in HA. Disclosures No relevant conflicts of interest to declare.

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COMPARISON AND EVALUATION OF CLINICAL EXPERIENCE AND GRAPHOANALYSIS USING HOUSE'S CLASSIFICATION, FOR ASSESSMENT OF EMOTIONAL STATUS OF COMPLETELY EDENTULOUS PATIENTS, IN SUCCESS OF COMPLETE DENTURE.

10.36106/ijar/6107642 ◽

2020 ◽

pp. 1-3

Author(s):

Sargam R. Parate ◽

Jaishree Chahande ◽

Rahul Gandhi

Keyword(s):

Clinical Experience ◽

Rank Correlation ◽

Complete Denture ◽

Emotional Status ◽

Chi Square ◽

Age And Gender ◽

Spearman’S Rank Correlation ◽

Chi Square Test ◽

And Gender ◽

Edentulous Patients

Aim: To compare and evaluate clinical experience and graphoanalysis, using House’s classification in assessing the emotional status of completely edentulous patients in success of complete denture. Settings and Design: Comparative analytical study. Methods and Material: 50 completely edentulous patients of age above 45 years (M/F) were taken as subjects. Literate patients were included in the study while incompetent patients and illiterate patients were excluded. Patients were asked to express their expectations regarding the treatment on paper in their handwritings using vernacular language. Subjects were categorized on the basis of age and gender. The handwriting samples were collected and graphoanalysis was done. Statistical analysis used: The resultant data was subjected to statistical analysis using chi square test and spearman's rank correlation test. Results: Considering age, on graphoanalysis (P-18, I-14, E-14, H–4) were found, when compared to Clinical experience (P-23, I-12, E -13, H- 2). While considering gender, on GA (P-18, I-14, E-14 and H-4) were found when compared to CE (P-23, I-12, E-13 and H-2). Chi-square test showed CE and GA were independent of age and gender. Spearman’s rank correlation between CE and GA was 0.217. Conclusions: Clinical experience and graphoanalysis of complete denture patient are independent of Age and Gender. There was a significant correlation between CE and GA, so graphoanalysis can be used for ascertaining the mental attitude of completely edentulous patient.

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Incorporating Traffic Control and Safety Hardware Performance Functions into Risk-based Highway Safety Analysis

PROMET - Traffic&Transportation ◽

10.7307/ptt.v29i2.2041 ◽

2017 ◽

Vol 29 (2) ◽

pp. 143-153 ◽

Cited By ~ 3

Author(s):

Zongzhi Li ◽

Hoang Dao ◽

Harshingar Patel ◽

Yi Liu ◽

Bei Zhou

Keyword(s):

Traffic Control ◽

Rank Correlation ◽

Safety Performance ◽

Chi Square ◽

Highway Infrastructure ◽

Pavement Markings ◽

Spearman’S Rank Correlation ◽

Rural And Urban ◽

Crash Modification Factors ◽

Hardware Performance

Traffic control and safety hardware such as traffic signs, lighting, signals, pavement markings, guardrails, barriers, and crash cushions form an important and inseparable part of highway infrastructure affecting safety performance. Significant progress has been made in recent decades to develop safety performance functions and crash modification factors for site-specific crash predictions. However, the existing models and methods lack rigorous treatments of safety impacts of time-deteriorating conditions of traffic control and safety hardware. This study introduces a refined method for computing the Safety Index (SI) as a means of crash predictions for a highway segment that incorporates traffic control and safety hardware performance functions into the analysis. The proposed method is applied in a computation experiment using five-year data on nearly two hundred rural and urban highway segments. The root-mean square error (RMSE), Chi-square, Spearman’s rank correlation, and Mann-Whitney U tests are employed for validation.

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Dental Practitioners and their Perceptions Regarding the Use of Antioxidants in the Promotion of Oral Health

International Healthcare Research Journal ◽

10.26440/ihrj/0401.04337 ◽

2020 ◽

Vol 4 (1) ◽

pp. 10-14

Author(s):

Nadia Khan ◽

Anam Khan ◽

Burshida Khalid ◽

Gauri Sharma

Keyword(s):

Rank Correlation ◽

Central India ◽

Online Questionnaire ◽

Chi Square ◽

Spearman’S Rank Correlation ◽

Dental Practitioners ◽

Significant Difference ◽

High Knowledge ◽

Chi Square Test

INTRODUCTION: The role of free radicals is well established as a crucial component of the immune system. AIM: To assess the perception of dental practitioners of Northern and Central India regarding the role of antioxidants in oral health.MATERIALS AND METHOD: A pre-tested and pre-validated online questionnaire was distributed among various dental practitioners in Northern and Central India which consisted of dichotomous responses. Descriptive statistics were used to summarize the data, followed by the Chi square test to check significant differences between the responses. Correlation between responses were analysed through the Spearman’s rank correlation. Statistical analysis was done using Statistical Package for Social Sciences version 20 (SPSS 20).RESULTS: A statistically significant difference was observed among the genders, with females 126 (43.7%) having lesser knowledge than males 162(56.3%) regarding the use of antioxidants in their clinical practice. High knowledge scores were observed in 288 (69.2%) dental professionals. Postgraduates were found to have (p=0.05) a higher level of knowledge as compared to graduates.CONCLUSION: The use of antioxidants in dentistry should be increased through the conduction of various CDE programmes. workshops and evidence-based practice guidelines.

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Knowledge and practice among nurses regarding breastfeeding in a hospital with baby-friendly hospital initiative

Journal of Patan Academy of Health Sciences ◽

10.3126/jpahs.v7i3.33835 ◽

2020 ◽

Vol 7 (3) ◽

pp. 113-121

Author(s):

Indira Timalsina

Keyword(s):

Rank Correlation ◽

Baby Friendly Hospital Initiative ◽

Chi Square ◽

Cross Sectional ◽

Good Level ◽

Spearman’S Rank Correlation ◽

Normality Test ◽

Level Of Knowledge ◽

Knowledge And Practice ◽

Correlation Statistics

Introduction: The baby-friendly hospital initiative is a global program launched by WHO and UNICEF in 1991 to encourage hospitals, mainly maternity wards to implement practices that protect, promote, and support breastfeeding. This study aimed to assess Knowledge and Practice regarding breastfeeding of BFHI among Nurses. Method: A cross-sectional analytical study design was used among nurses of Maternity, Children, Gynaecology, and Postpartum wards of Patan Hospital, from January 2019 to February 2020. Data on knowledge of baby-friendly hospital initiative and breastfeeding was collected by using a self-administered structured questionnaire and practice of breastfeeding by observation checklist. Descriptive (frequency, percentage, mean, standard deviation) and inferential (Chi-square, normality test, and Spearman’s rank correlation) statistics were used for data analysis with SPSS version 20. Result: The findings show that out of 100 nurses surveyed, more than half (58%) of the respondents had a good level of knowledge and less than one-fourth (23.8%) had a good level of practice of breastfeeding. There was no significant association between level of knowledge and baby-friendly hospital initiative in the nursing course (p=0.814), training on breastfeeding in hospital (p=0.069), or outside (p=0.944). There was a weak positive correlation between knowledge and practice of breastfeeding. Conclusion: Compared to knowledge on breastfeeding, the practice was quite low among the nurses.

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