scholarly journals Changes in the Intelligence Levels and Structure in Russia: An ANOVA Method Based on Discretization and Grouping of Factors

2021 ◽  
Vol 11 (13) ◽  
pp. 5864
Author(s):  
Tatiana Avdeenko ◽  
Anastasiia Timofeeva ◽  
Marina Murtazina ◽  
Olga Razumnikova

In the present paper, we investigate how the general intelligence quotient (IQ) and its subtests changed for students from Russian University from 1991 to 2013. This study of the effect of such factors as gender, department, and year on the IQ response is carried out using the ANOVA model. Given the unevenness of the initial sample by years and departments, and consequently, heterogeneity of variances when divided by the original natural categories, we decided to aggregate the values of explanatory variables to build an adequate model. The paper proposes and investigates an algorithm for joint discretization and grouping, which uses the procedure of partial screening of solutions. It is an intermediate option between the greedy algorithm and exhaustive search. As a goodness function (an optimality criterion), we investigate 26 intermediate options between the AIC and BIC criteria. The BIC turned out to be the most informative and the most acceptable criterion for interpretation, which penalizes the complexity of the model, due to some decrease in accuracy. The resulting partition of the explanatory variables values into categories is used to interpret the modeling results and to arrive at the final conclusions of the data analysis. As a result, it is revealed that the observed features of the IQ dynamics are caused by changes in the education system and the socio-economic status of the family that occurred in Russia during the period of restructuring the society and intensive development of information technologies.

2006 ◽  
Vol 21 (3) ◽  
pp. 383-418 ◽  
Author(s):  
BEATRICE MORING

The aim of this article is to explore the economic status and the quality of life of widows in the Nordic past, based on the evidence contained in retirement contracts. Analysis of these contracts also shows the ways in which, and when, land and the authority invested in the headship of the household were transferred between generations in the Nordic countryside. After the early eighteenth century, retirement contracts became more detailed but these should be viewed not as a sign of tension between the retirees and their successors but as a family insurance strategy designed to protect the interests of younger siblings of the heir and his or her old parents, particularly if there was a danger of the property being acquired by a non-relative. Both the retirement contracts made by couples and those made by a widow alone generally guaranteed them an adequate standard of living in retirement. Widows were assured of an adequately heated room of their own, more generous provision of food than was available to many families, clothing and the right to continue to work, for example at spinning and milking, but to be excused heavy labour. However, when the land was to be retained by the family, in many cases there was no intention of establishing a separate household.


SAGE Open ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 215824402110441
Author(s):  
Cristina Maria Bostan ◽  
Tudor Stanciu ◽  
Răzvan-Lucian Andronic

Concordant with classical theoretical guidelines (i.e., social facilitation, social constructivism theory, and the Pygmalion effect) we tested the need for competition and perception of being valued by teachers to be better motivated for learning in school. We extend knowledge by testing these associations mediated by the social economic status given by the well-being of the family (i.e., controlling for gender and socio-economic status). A total of 214 Romanian students (45.3% boys) with ages between 13 and 17 years were administered the PEER questionnaire (i.e., perception of being valued by teachers, school-children motivation, and the need for competition). Results show a positive relation between the need for competition and motivation for learning. We also found positive relations between the perception of being valued by the teacher and motivation for learning and the need for competition. We conclude that motivation is higher when the need for competition is higher and the perception of being valued by teachers is higher.


2021 ◽  
pp. 2455328X2110325
Author(s):  
Yogendra Musahar

The recent incident, the gang rape and murder of a 19-year-old woman in Hathras, a small village in Uttar Pradesh of India, once again sparks a debate on links between sexual violence and castes in India. This article aims to examine the links between sexual violence and castes in India. This study utilizes the national representative National Family Health Survey 4 (NFHS-4, 2015–16) data. A bivariate analysis was carried out to analyse the data. A binary logistic regression model was applied to predict the effect of explanatory variables, viz. type of place of residence, years of schooling complete, economic status in terms of wealth index and finally castes on predicted variable, i.e. sexual violence. The binary regression model indicates that there were links between sexual violence and castes. For secured and dignified life of women, caste-based sexual violence must be annihilated.


2005 ◽  
Vol 2 (4) ◽  
pp. 423-434 ◽  
Author(s):  
Stuart J.H. Biddle ◽  
Sarah H. Whitehead ◽  
Toni M. O’Donovan ◽  
Mary E. Nevill

Background:Many adolescent girls have low levels of physical activity and participation declines with age. This review identifies recent correlates of physical activity in adolescent girls.Methods:Systematic review of papers published 1999 to mid-2003. Papers (k = 51) reporting a measure of physical activity and at least one potential correlate of physical activity in adolescent girls were analyzed.Results:Demographics related to physical activity were female gender (–), non-white ethnicity (–), age (–), and socio-economic status (+). Psychological correlates positively associated with physical activity were enjoyment, perceived competence, self-efficacy, and physical self-perceptions. Behavioral correlates showed that smoking was associated with lower and organized sport involvement with greater activity. Physical activity was associated with parental and family support but we found no consistent trends for environmental variables. Effects were small-to-moderate.Conclusions:Modifiable correlates for adolescent girls clustered around “positive psychology,” organized sport involvement, and the family.


2018 ◽  
Vol 18 (1) ◽  
pp. 215
Author(s):  
Nia Nurzia

Abnormal cervical is still  in high levels of  which marked by the outbreak of the Human Papilloma Virus, It is not offset by the use of vaccination (HPV) Human Papilloma Virus which as the primary prevention of the spread of Human Papilloma Virus . recorded in Dara Jingga clinic in  2015, there were 226 people in the state of the cervix abnormal while those who making vaccination extremely low at only 40 people. Likewise, in 2016 there were 301 people in a state of abnormal cervical and vaccinated only 16 people . Based on it, this research is the research which aimed to determine the relationship between knowledge, economic status, family role and the role of health personnel  against the Human Papilloma Virus vaccination in Dara Jingga Clinic  Jambi City. This research is descriptive analytic with cross sectional design, the data collected through questionnaires, with a population was 321 people. using  acidental sampling technique with  sample was 32 people, research has been conducted on 22 to 24 August 2016 using univariate  and bivariate analysis assisted by a computer program. The results of the univariate analysis of vaccination picture were 10 respondents (31.3%) take advantage of HPV vaccination and 22 respondents (68,8%) did not take advantage of the HPV vaccination, an overview of knowledge were five respondents (15,6%) have sufficient knowledge, 15 respondents (46,9%) had a good knowledge,12 respondents (37,5%) had poor knowledge, an overview of economic status,  13 respondents (40,6%) had high economic status and  19 respondents (59,4% ) have lower economic status, description of the role of health workers13 respondents (40,6%) have a good role of health personnel and  19 respondents (59,4%) has the role of health personnel is not good. Overview of the role of the family, 11 respondents (34,4%) has the role of a good family and  21 respondents (65,6%) had a family roles goodles. the result of these studies show a relationship between the mother's knowledge by vaccination with HPV (Human Papilloma Virus ) with a p value of 0,035, the relationship between economic status with vaccination HPV (Human Papilloma Virus with p value 0,002, their relationship with the role of HPV vaccination of health workers with p value 0,002, their relationship with the family role of HPV vaccination with a p value of 0,004.Keywords: Knowledge, Economic Status, Role of health personnel, Role of Family,HPV Vaccination (Human Papilloma Virus)


Author(s):  
Afrin Sadia Rumana ◽  
Asia Khatun ◽  
Sukanta Das

Background: In Bangladesh, smoking is one of the leading preventable causes of death. Despite possessing knowledge about the consequences of smoking and the resultant non-communicable diseases, individuals have become considerably habituated to it. The study aims to identify the factors associated with smoking cigarettes and as well as to examine the existing situation of this issue among adult males in Bangladesh.Methods: Total 480 adult males were surveyed from Bangladesh through personal interview and online questionnaire, (from June 2018 to June 2019). To measure the effect of the explanatory variables on cigarettes smoking, authors perform χ2 test of independence as bivariate analysis. After performing bivariate analysis, a logistic regression analysis has been performed to assess the effect of the explanatory variables.Results: Findings of the study revealed that educational level, household economic status, media exposure, division have significant contribution for smoking cigarettes among the adult male in Bangladesh. A comparison of religious affiliation showed smoking cigarettes to be higher among non-muslim counterparts. Respondents living in rural area are found to have smoking cigarettes comparing with urban area.Conclusions: From the study it can be concluded that education and socio-economic status of male make a significant contribution in cigarettes smoking.


2020 ◽  
Vol 20 (6) ◽  
Author(s):  
Fakhar Ali Qazi Arisar ◽  
Muhammad Kamran ◽  
Ramlah Nadeem ◽  
Wasim Jafri

Background: Chronic liver disease (CLD) is one of the leading causes of morbidity and mortality worldwide. It is accountable for a multifaceted disease encumbrance upsetting the psychological, physical, and economic health of not only the patients but also their caregivers. Objectives: The study purposes to cover the economic aspect of CLD to comprehend the financial burden imposed on the patients. Methods: This cross-sectional study was conducted at a tertiary care hospital in Karachi, Pakistan. The CLD patients presenting in gastroenterology clinics were recruited, and their socio-demographic, financial, and disease-related information including Model for End-stage Liver Disease (MELD) score and Child Turcotte Pugh (CTP) scores were collected. Out of 190 CLD patients enrolled, 127 (67.2%) were males. The mean age was 50.09 years. Variables assessed include self-perceived social/economic status, self-perception of disease responsibility for worsening of social/economic situation, the impact of the disease on economic status due to medical expense, the impact of economic status on treatment compliance due to medical expenses, impact of severity of disease on socioeconomic status and treatment compliance, and impact of gender on disease status and treatment compliance. Results: Regardless of the disease duration, CLD significantly impacted a patient’s life, as 81% and 69% of the patients blamed their disease responsible for the worsening of social and economic conditions, respectively. In our study, 85% of patients had consumed all savings during their course of illness, and 67% had to borrow money for medical expenses. Nearly half of the patients had to leave or cut short their medicines, skip the physician's appointment, or defer their children's education. One-third of patients had unpaid medical and utility bills or even skipped their meals. The severity of disease affected the socioeconomic status significantly (89% in CTP class C vs. 40% in CTP class A). Patients with worsening socioeconomic status had significantly higher MELD scores as compared to those with stable socioeconomic status. Conclusions: Chronic liver disease imposes incredible socioeconomic encumbrance on patients and the family unit, and CLD associated expenditures influence the family unit’s everyday working and therapeutic compliance, which is directly linked to the severity of disease expressed in terms of CTP and MELD scores.


2021 ◽  
Vol 13 (2) ◽  
pp. 170-178
Author(s):  
Elena OZHOGINA ◽  
◽  
Olga KOTOVA ◽  

The development of mineral resources of solid mineral resources goes mainly together with problems because of natural factors, which determines current position of modern technological mineralogy. We paid particular attention to problems of mineralogical study of refractory ores of natural and technogenic genesis, associated with technical, technological and economic factors. We showed that many provisions of “Strategy for the development of Russian industry for the processing, utilization and disposal of industrial and consumer wastes for the period up to 2030” are related to the field of technological mineralogy. Intensive development and improvement of physical methods of mineralogical analysis resulted in need for their metrological support. Creation of a strict metrological basis for quality control of mineralogical works ensures the reliability of results of performed researches. The formation of new methods and techniques, both research tools and technologies for studying the composition, structure and properties of solid minerals, contribute to understanding interrelationships of mineral phases and resulting spatial and temporal patterns of coexistence of minerals in rocks, ores and other natural and technogenic formations. We considered achievements, problems and prospects for the development of technological mineralogy, an algorithm for the application of its methods and approaches in the management of complex processing of mineral raw. The main emphasis is placed on the development of scientific and methodological prerequisites for solving problem of rational development of mineral raw, the maximum possible extraction and integrated use of all minerals (both main and accompanying), expansion and strengthening of the mineral resource base in the light of the global challenges of the economic and environmental doctrines of modern civilization. The studies of complex mineral systems increasingly use information technologies “big data”. For the best solution of complex tasks of geological and technological mapping and mineragenic research, methods of remote sensing using the Landsat program are becoming popular. We emphasized importance of interactive forms and methods of teaching mineralogical research for specialists from organizations of different departmental affiliation.


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