scholarly journals What to Do When Accumulated Exposure Affects Health but Only Its Duration Was Measured? A Case of Linear Regression

2019 ◽  
Vol 16 (11) ◽  
pp. 1896 ◽  
Author(s):  
Igor Burstyn ◽  
Francesco Barone-Adesi ◽  
Frank de Vocht ◽  
Paul Gustafson
Keyword(s):  
Linear Regression ◽  
Cumulative Exposure ◽  
External Information ◽  
Normal Distributions ◽  
Individual Level ◽  
Continuous Response ◽  
Log Normal ◽  
The Individual ◽  
Relationship Of ◽  
The Relationship

Background: We considered a problem of inference in epidemiology when cumulative exposure is the true dose metric for disease, but investigators are only able to measure its duration on each subject. Methods: We undertook theoretical analysis of the problem in the context of a continuous response caused by cumulative exposure, when duration and intensity of exposure follow log-normal distributions, such that analysis by linear regression is natural. We present a Bayesian method to adjust duration-only analysis to incorporate partial knowledge about the relationship between duration and intensity of exposure and illustrate this method in the context of association of smoking and lung function. Results: We derive equations that (a) describe under what circumstances bias arises when duration of exposure is used as a proxy of cumulative exposure, (b) quantify the degree of such bias and loss of precision, and (c) describe how knowledge about relationship of duration and intensity of exposure can be used to recover an estimate of the effect of cumulative exposure when only duration was observed on every subject. Conclusions: Under our assumptions, when duration and intensity of exposure are either independent or positively correlated, we can be more confident in qualitatively interpreting the direction of effects that arise from use of duration of exposure per se. We can use external information on the relationship between duration and intensity of exposure (namely: correlation and variance of intensity), even if intensity of exposure is not available at the individual level, to make reliable inferences about the magnitude of effect of cumulative exposure on the outcome.

scholarly journals What to Do When Accumulated Exposure Affects Health but Only Its Duration Was Measured? A Case of Linear Regression

2019 ◽  
Author(s):  
Igor Burstyn ◽  
Francesco Barone-Adesi ◽  
Frank de Vocht ◽  
Paul Gustafson
Keyword(s):  
Linear Regression ◽  
Cumulative Exposure ◽  
External Information ◽  
Normal Distributions ◽  
Individual Level ◽  
Continuous Response ◽  
Log Normal ◽  
The Individual ◽  
Relationship Of ◽  
The Relationship

Background: We considered a problem of inference in epidemiology when cumulative exposure is the true dose metric for disease, but investigators are only able to measure its duration on each subject. Methods: We undertook theoretical analysis of the problem in the context of a continuous response caused by cumulative exposure, when duration and intensity of exposure follow log-normal distributions, such that analysis by linear regression is natural. We present a Bayesian method to adjust duration-only analysis to incorporate partial knowledge about the relationship between duration and intensity of exposure and illustrate this method in the context of association of smoking and lung function. Results: We derive equations that (a) describe under what circumstances bias arises when duration of exposure is used as a proxy of cumulative exposure, (b) quantify the degree of such bias and loss of precision, and (c) describe how knowledge about relationship of duration and intensity of exposure can be used to recover an estimate of the effect of cumulative exposure when only duration was observed on every subject. Conclusions: Under our assumptions, when duration and intensity of exposure are either independent or positively correlated, we can be more confident in qualitatively interpreting the direction of effects that arise from use of duration of exposure per se. To make reliable inference about the magnitude of effect of cumulative exposure on the outcome, we can use external information on the relationship between duration and intensity of exposure even if intensity of exposure is not available at the individual level.

Citizen-Initiated Contacting of Government Officials and Socioeconomic Status: Determining the Relationship and Accounting for It

1982 ◽  
Vol 76 (1) ◽  
pp. 109-115 ◽  
Author(s):  
Elaine B. Sharp
Keyword(s):  
Socioeconomic Status ◽  
Positive Relationship ◽  
Government Officials ◽  
Individual Level ◽  
Related Data ◽  
Sense Of Efficacy ◽  
The Individual ◽  
Relationship Of ◽  
The Relationship ◽  
Level Of Analysis

The topic of citizen-initiated contacting of government officials has received increasing attention, but research has yielded conflicting findings on the relationship of socioeconomic status to contacting behavior. Various studies find that the two are negatively, positively, parabolically, or negligibly related. Data are presented supporting the claim of a positive relationship, and reasons for the conflicting findings are explored. The need-awareness model, associated with the finding of a parabolic relationship between socioeconomic status and contacting at the aggregate level, is tested at the individual level of analysis. While the importance of the need and awareness factors is affirmed, the overall model is not supported. As with other modes of political participation, sense of efficacy is found to be an important predictor of contracting, but the positive relationship between socioeconomic status and contacting remains when efficacy is controlled.

Empires within and without: the conquest of the self and the Florentine avant-garde

Modern Italy ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 49-62
Author(s):  
Bertrand Marilier
Keyword(s):  
The Self ◽  
Individual Level ◽  
Avant Garde ◽  
Psychological Understanding ◽  
The Subject ◽  
The Individual ◽  
Intellectual Formation ◽  
Relationship Of ◽  
The Relationship ◽  
Intense Debate

This article examines the relationship of the young Giovanni Papini to the notion of imperialism. The period of Papini's intellectual formation was a time of intense debate among the Italian intelligentsia concerning imperialism and its relationship to nation and culture. He joined the conversation with a distinctive interpretation of the idea, one that could at once make him heir apparent to the tradition of Umbertian nationalism, while also rejecting the positivist slant of his forebears. William James's porous conception of the subject and Papini's sense of his own fragmented subjectivity provided the ground for a psychological understanding of imperialism: one that relied on knowledge and appreciation, which translated into literature at the individual level, and into culture at that of the nation. Ultimately, however, disappointments abroad, the demands of nationalist politics, and Papini's own avant-garde posture, led him to abandon his intellectual empire in favour of a more concrete one.

CHILD-PARENT RELATIONS AS A FACTOR IN THE FORMATION OF PROFESSIONAL PREFERENCES IN PEDAGOGICAL DYNASTIES

2020 ◽  
Vol 2 (4) ◽  
pp. 126-130
Author(s):  
N. V. SHAMANIN ◽  
Keyword(s):  
Professional Development ◽  
The Family ◽  
The Individual ◽  
Relationship Of ◽  
The Relationship ◽  
Parent Child Relationships ◽  
Professional Preferences ◽  
Parent Child

The article raises the issue of the relationship of parent-child relationships and professional preferences in pedagogical dynasties. Particular attention is paid to the role of the family in the professional development of the individual. It has been suggested that there is a relationship between parent-child relationships and professional preferences.

Epilogue

2017 ◽  
Author(s):  
Joshua S. Walden
Keyword(s):  
The Body ◽  
The Self ◽  
The Individual ◽  
Relationship Of ◽  
The Relationship

The book’s epilogue explores the place of musical portraiture in the context of posthumous depictions of the deceased, and in relation to the so-called posthuman condition, which describes contemporary changes in the relationship of the individual with such aspects of life as technology and the body. It first examines Alfred Hitchcock’s Vertigo to view how Bernard Herrmann’s score relates to issues of portraiture and the depiction of the identity of the deceased. It then considers the work of cyborg composer-artist Neil Harbisson, who has aimed, through the use of new capabilities of hybridity between the body and technology, to convey something akin to visual likeness in his series of Sound Portraits. The epilogue shows how an examination of contemporary views of posthumous and posthuman identities helps to illuminate the ways music represents the self throughout the genre of musical portraiture.

Underestimation of Dose - Response Relationship with Particular Reference to the Relationship between the Dietary Intake of Mercury and its Concentration in Blood

1988 ◽  
Vol 7 (2) ◽  
pp. 129-132 ◽  
Author(s):  
J.C. Sherlock ◽  
M.J. Quinn
Keyword(s):  
Linear Regression ◽  
Dietary Intake ◽  
Dose Response ◽  
Mercury Concentration ◽  
Response Relationship ◽  
Dose Response Relationship ◽  
Blood Mercury ◽  
Relationship Of ◽  
The Relationship ◽  
Blood Mercury Concentration

Wide discrepancies have been observed between controlled and uncontrolled intake studies of the relationship of blood mercury concentration to intake of mercury. The probable reason for the apparent discrepancies is that the within-subject variation of mercury intake in the uncontrolled studies was almost certainly considerably larger than the within-subject variation in blood mercury concentration; in these circumstances, the apparent slope obtained from a linear regression of blood mercury on intake will invariably be much smaller than the true slope. Studies of the exposure or intake of any substance should therefore include a consideration of the likely within-subject variation in the exposure or intake relative to that in the effect.

scholarly journals THE NEED FOR INFORMATION AND THE ATTITUDE TOWARDS DIGITAL TECHNOLOGIES AS FACTORS OF CRITICAL AND UNCRITICAL DISSEMINATION OF PANDEMIC NEWS

2021 ◽  
pp. 170-195
Author(s):  
Elena I. Rasskazova ◽  
Galina V. Soldatova ◽  
Yulia Y. Neyaskina ◽  
Olga S. Shiriaeva
Keyword(s):  
Subjective Experience ◽  
New Technologies ◽  
Modern Society ◽  
Sociodemographic Factors ◽  
Subjective Experiences ◽  
Individual Level ◽  
Related Information ◽  
Digital World ◽  
The Individual ◽  
The Relationship

Relevance. The modern society creates the image of a successful person as actively interacting with different information flows, including an impressive stream of news content. This paper assumes that there is a personal need for tracking and spreading news that develops in the interaction between person and digital world. The individual level of this need could explain the interaction with information (its critical and uncritical dissemination) and the subjective experience of its redundancy and inaccuracy, including those experiences and actions in a pandemic situation. The aim of the study was to reveal the relationship of the subjective need for news with personal values, beliefs about technologies (“technophilia”) and the dissemination of news about the pandemic. Method. 270 people (aged 18 to 61) filled out The short (Schwartz) Portrait Values Questionnaire (PVQ), Beliefs about New Technologies Questionnaire, Monitoring of Information about Coronavirus Scale as well as items on the subjective need for receiving and disseminating news, readiness for critical and non-critical dissemination of news about pandemics, subjective experiences of redundancy and distrust of pandemic-related information. Results. According to the results, the Need for News Scale allows assessing the subjective importance of receiving news and discussing them with other people and is characterized by sufficient consistency and factor validity. The need for regular news is more pronounced among men, older people, people with higher education, married people, people who have children, while the need to discuss news is not related to sociodemographic factors. For people, who are more prone to technophilia, it is more important to regularly receive and discuss news information with others, which, in turn, mediates the relationship between technophilia and monitoring news about coronavirus. The need for news dissemination mediates the relationship between technophilia and readiness for critical and non-critical dissemination of information about the pandemic.

scholarly journals HUBUNGAN PERSEPSI TENTANG PROFESI FISIOTERAPI DENGAN MOTIVASI BELAJAR MAHASISWA AKADEMI FISIOTERAPI UKI

2018 ◽  
Vol 10 (3) ◽  
pp. 226
Author(s):  
Maksimus Bisa
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Correlation Analysis ◽  
Correlation Coefficient ◽  
Linear Regression Analysis ◽  
Motivation To Learn ◽  
Simple Linear Regression ◽  
Level 1 ◽  
Relationship Of ◽  
The Relationship

ABSTRACTThis study is descriptive analitik, aims to describe the relationship of perceptions about the physiotherapy profession with the motivation to learn students of the Academy of Physiotherapy UKI. Data collection through questionnaires to students of Physiotherapy Academy UKI level 1, 2, and 3 with a sample of 53 students, then give a score of each statement of questionnaire.The result of correlation analysis shows that p = 0,584> α (0,05) ho is accepted, so there is no significant relationship between the two variables. To measure the closeness and intensity of the relationship between the two variables, test of correlation coefficient and simple linear regression. The result of correlation coefficient test (r) obtained by -0,077, lies below the value of -0.30 (very weak) thus can be said there is no relation between perception about physiotherapy profession with motivation learn student Akfis UKI. Result of linear regression analysis obtained equation: Y = 73,52 + (-0,088) X. This means that every 1 point decrease of perception value will influence motivation value equal to 0,088 times.Keywords: Perception, motivation, physiotherapy profession, and learning achievement. ABSTRAKPenelitian ini bersifat deskriptif analitik, bertujuan untuk mendeskripsikan hubungan persepsi tentang profesi fisioterapi dengan motivasi belajar siswa Akademi Fisioterapi UKI. Pengumpulan data melalui kuesioner kepada siswa Fisioterapi Academy UKI tingkat 1, 2, dan 3 dengan sampel sebanyak 53 siswa, kemudian memberikan skor masing-masing kuesioner pernyataan. Hasil analisis korelasi menunjukkan bahwa p = 0,584> α (0,05) ho diterima, sehingga tidak ada hubungan yang signifikan antara kedua variabel tersebut. Untuk mengukur kedekatan dan intensitas hubungan antara kedua variabel tersebut, uji koefisien korelasi dan regresi linier sederhana. Hasil uji koefisien korelasi (r) diperoleh sebesar -0,077, berada di bawah nilai -0,30 (sangat lemah) sehingga dapat dikatakan tidak ada hubungan antara persepsi tentang profesi fisioterapi dengan motivasi belajar siswa Akfis UKI. Hasil analisis regresi linier diperoleh persamaan: Y = 73,52 + (-0,088) X. Artinya setiap 1 titik penurunan nilai persepsi akan mempengaruhi nilai motivasi sebesar 0,088 kali.Kata kunci: Persepsi, motivasi, profesi fisioterapi, dan prestasi belajar.

scholarly journals The specifics of interpretation of the history in the story by A. Doronin «A Wolf Ravine»

2021 ◽  
Vol 11 (1) ◽  
pp. 139-147
Author(s):  
S. V. Sheyanova ◽  
◽  
N. M. Yusupova ◽  
Keyword(s):  
Literary Criticism ◽  
Historical Narrative ◽  
Volga Region ◽  
Psychological States ◽  
The Real ◽  
The Subject ◽  
The Individual ◽  
Relationship Of ◽  
First Time ◽  
The Relationship

Introduction: at present the reader’s audience is particularly interested in creative experiments in which the historical fate of the Russian peasantry in the «turning» eras is artistically comprehended. The article is devoted to the study of the problem-thematic range of modern Mordovian historical prose. The subject of analysis is the peculiarity of the reception of the period of collectivization and dekulakization in the story by Erzyan prose writer A. Doronin «A Wolf Ravine». Objective: to reveal the features of the artistic reconstruction of the events of the 1930s, the modeling of the relationship between a man and society in the story by A. Doronin «A Wolf Ravine».Research materials: the story by A. Doronin «A Wolf Ravine». Results and novelty of the research: the historical story « A Wolf Ravine » for the first time becomes the object of scientific understanding and is introduced into the context of Finno-Ugric literary criticism. A. Doronin artistically interprets the real events and circumstances of the resettlement of dispossessed peasants of the Volga region to the uninhabited steppes of Kazakhstan. As a result of the study, we conclude that the actualization of this problem-thematic cluster is due to the creative concept of the historical writer; the individual author’s approach to the reconstruction of historical narrative can be traced in the writer’s desire to realistically reveal the relationship of personality and society in the tragic 1930s; to analyze intentions of people and of the psychological states of the characters. Problems of a sociopolitical nature, actualized in the story, are filled with philosophical, axiological content, and lead to a multi-faceted understanding of the «man and history» problem.

scholarly journals Analysis of the Relationship of Professionals towards the Vertical Equity of the Slovenian Tax System and Its Comparison with Croatia, Bosnia and Herzegovina and the USA

2018 ◽  
Vol 15 (3-4) ◽  
pp. 145-166
Author(s):  
Jelena Klopčič ◽  
Maja Klun
Keyword(s):  
Bosnia And Herzegovina ◽  
The United States ◽  
Vertical Equity ◽  
Tax System ◽  
Equity Principle ◽  
The Usa ◽  
Survey Results ◽  
The Individual ◽  
Relationship Of ◽  
The Relationship

Vertical equity states that taxpayers whose positions are not the same should be treated differently while taking into consideration all the relevant characteristics. The main purpose of using the vertical equity principle is to require the redistribution of income in a way that reduces the income inequality of the society. The presented research aims to check the opinion of Slovenian tax system professionals on the principle of vertical equity. Slovenian results have been compared to a similar analysis carried out in Croatia, and partly with survey results from Bosnia and Herzegovina and the United States of America. The results show that the professional public agrees with the principle of vertical equity in the implementation of tax systems. All of the compared countries are similarly favourable towards vertical equity. However, this is also affected by the current tax arrangements of the individual countries.

Sign in / Sign up

Export Citation Format

Share Document