scholarly journals The Stability of Psychopathy From Adolescence Into Adulthood

2008 ◽  
Vol 35 (2) ◽  
pp. 228-243 ◽  
Author(s):  
Donald R. Lynam ◽  
Rolf Loeber ◽  
Magda Stouthamer-Loeber
Keyword(s):  
Statistical Significance ◽  
Physical Punishment ◽  
Future Directions ◽  
Peer Delinquency ◽  
Family Socioeconomic Status ◽  
Psychopathy Checklist ◽  
Cognitive Impulsivity ◽  
Youth Study ◽  
The Stability ◽  
Childhood Psychopathy

This study examines moderators of the relation between psychopathy assessed at age 13 using the mother-reported Childhood Psychopathy Scale and psychopathy assessed at age 24 using the interviewer-rated Psychopathy Checklist: Screening Version (PCL:SV). Data from more than 250 participants of the middle sample of the Pittsburgh Youth Study were used. Thirteen potential moderators were examined, including demographics (i.e., race, family structure, family socioeconomic status [SES], and neighborhood SES), parenting factors (physical punishment, inconsistent discipline, lax supervision, and positive parenting), peer delinquency, own delinquency, and other individual differences (i.e., verbal IQ, behavioral impulsivity, and cognitive impulsivity). Moderators were examined for the total psychopathy score at age 24 as well as for each of the four PCL:SV facets. After relaxing the criterion for statistical significance, 8 out of a possible 65 interactions were statistically significant. Implications of the present findings and future directions are discussed.

An impact of intima media thickness of carotids in cardio vascular profile

2020 ◽  
Vol 10 (2) ◽  
pp. 48-52
Author(s):  
Jeevitha M ◽  
Kalaichandar M ◽  
Kirubakaran K ◽  
Baskaran V ◽  
Kokila K ◽  
...  
Keyword(s):  
Blood Pressure ◽  
High Blood Pressure ◽  
Statistical Significance ◽  
Intima Media Thickness ◽  
Cardio Vascular ◽  
Intima Medial Thickness ◽  
The Stability ◽  
Carotid Intima Medial Thickness ◽  
Oral Sodium ◽  
Worse Prognosis

Low blood pressure truly includes a worse prognosis than the excessive blood strain. This mechanism,bills for the "reverse causation "seen within the haemodialysis’ patients, the company of conventional risk elements, such as high blood pressure, hyperlipidemia, and obesity, appear to be a worst diagnosis.Exogenous erythropoietic products can growth blood strain and requirement of antihypertensive tablets.30 Chronic ECFV overload secondary to activation of renin-angiotensin-aldosterone axisand disturbances inside the stability of vasoconstrictors and the vasodilators make a contribution to high blood pressure. Improvement in blood pressure can be introduced out with oral sodium restriction, diuretics, and fluid elimination with dialysis. Some patients will continue to be hypertensive notwithstanding of the careful attention to ECFV reputation. LVH is related with reduced endurance of sufferers on hemo/peritoneal dialysis .Lower five year survival charge in ESRD patients with LVH have a 30% than people missing LVH. This have a look at produces the mean carotid artery intima-medial thickness turned into higher in sufferers with superior CKD although it did now not attain statistical significance, probable due to smaller sample size.It was also observed that carotid intima medial thickness had no correlation with dyslipidemia. Even though the patients had maintained significantly normal cholesterol and high HDL levels, there was an increase in CIMT. Therefore, CKD patients, CIMT cannot be predicted based on the traditional atherosclerotic risk factors like serum cholesterol and HDL.

Future Directions in Surface Electromyography

Biofeedback ◽  
2010 ◽  
Vol 38 (2) ◽  
pp. 78-82 ◽  
Author(s):  
John G. Arena
Keyword(s):  
Surface Electromyography ◽  
Ambulatory Monitoring ◽  
Future Directions ◽  
The Past ◽  
Psychophysiological Assessment ◽  
The Future ◽  
The Stability

Abstract The use of surface electromyography (SEMG) has increased exponentially in the past four decades. SEMG is one of the most widespread measures employed today in psychophysiological assessment and one of three primary biofeedback modalities. This article briefly outlines three areas that the author believes are important for SEMG to address if it is to continue to flourish in the future: applications in telehealth, the use of telemetry and ambulatory monitoring, and studies on the stability or reliability of surface electromyography.

scholarly journals Irrational ideas and social fear among students of faculties of applied sciences in the Sultanate of Oman according to gender variables and academic specialization: الأفكار اللاعقلانية والخوف الاجتماعي لدى طلبة كليات العلوم التطبيقية بسلطنة عمان وفق متغيرات النوع الاجتماعي والتخصص الأكاديمي

2017 ◽  
Vol 1 (8) ◽  
Author(s):  
Nasra Muslim Hamad Al - Ghafri
Keyword(s):  
Applied Sciences ◽  
Statistical Significance ◽  
Sultanate Of Oman ◽  
Social Scale ◽  
The Social ◽  
Social Fear ◽  
The Stability ◽  
Academic Specialization

The aim of the study was to identify the level of the most irrational ideas among the students of faculties of applied sciences, to identify the level of social fear among the students of faculties of applied sciences and to identify whether there were statistically significant differences in the effect of the spread of irrational ideas and the level of social fear according to variables (The type of specialization). The population of the study included all the students of faculties of applied sciences in (Ibri-Nizwa-Rustaq), (4568). The sample of the study was chosen in the available way, with 282 students. Descriptive descriptive in This study was developed as a tool to measure irrational ideas and a tool was developed to measure social fear. The validity of the tools was verified through the method of arbitration. The stability of the tool was estimated in the Alpha Kronbach method and the results showed that the two tools were acceptable and reliable. The degree of spread of irrational ideas among the students of faculties of applied sciences was medium, while the degree of spread of the level of social fear among students of faculties of applied sciences medium, and the results showed that there are no differences of statistical significance according to variables of type and specialization of the scale of ideas not Qlanah results also showed that there were no statistically significant differences according to the variables of type and specialization of the social scale of fear ..

scholarly journals Criteria for evaluating the competencies of the school counselor at the basic education stage from the point of view of school principals in the state of Khartoum: معايير تقويم كفايات المرشد المدرسي بمرحلة تعليم الاساس من وجهة نظر مدراء المدارس بولاية الخرطوم

2017 ◽  
Vol 1 (3) ◽  
Author(s):  
Ikhlas Hassan Sayyid Echriya ◽  
Reham Anwar Mohammed Hassan
Keyword(s):  
School Counselor ◽  
Basic Education ◽  
School Principals ◽  
Pearson Correlation ◽  
Statistical Significance ◽  
Correlation Equation ◽  
Significance Test ◽  
Point Of View ◽  
The Stability ◽  
Extension Process

The aim of this study was to investigate the criteria of evaluating the competencies of the school counselor in the basic education stage, from the point of view of the school principals in Khartoum State, to achieve the objectives of the study. The researchers prepared a questionnaire that was applied during the academic year 2014-2015 to a random sample of 20 managers in basic education Khartoum, a maritime locality, the questionnaire contains six criteria for evaluating the school's competencies: planning the extension process, implementing the extension process, designing the extension programs, effective communication skills, using the technique in the extension process, In order to ascertain the stability and validity of the questionnaire, by means of the Alpha Kronbach equation and to verify the persistence of the questionnaire by Pearson correlation equation for the questionnaire items in the overall degree of the questionnaire, the sincerity of the arbitrators was measured by presenting it to a number of curriculum experts and pedagogic and educational psychologists in different Sudanese universities. Statistical packages of social sciences (SPSS), and statistical methods used to analyze repetitive data: percentages, arithmetical averages, standard deviations, mono variance, applied statistical significance test (T) The results of the study were reached by a number of recommendations, the most important of which are the need to develop an integrated methodology and a clear job description. For the role of the educational guide, and the process of educational guidance of schools based on the academic procedures of higher education, the need to contribute sections of educational psychology in the quality models and procedures to control and follow up the implementation of strategic plans for the tasks of the school guide and evaluate, The number of educational counselors for the number of learners and the creation of the guiding environment.

scholarly journals IS THE CAPITAL STRUCTURE STABLE IN BRAZIL?

2019 ◽  
Vol 20 (4) ◽  
Author(s):  
PÂMELA A. TRISTÃO ◽  
IGOR B. SONZA
Keyword(s):  
Capital Structure ◽  
Statistical Significance ◽  
Graphical Analysis ◽  
Structure Stability ◽  
Publicly Traded ◽  
Publicly Traded Companies ◽  
Tax Benefits ◽  
The Stability ◽  
Second Period ◽  
The Capital Structure

ABSTRACT Purpose: This paper’s objective is to analyze whether the capital structure of Brazilian publicly traded companies remained stable over the last twenty years. Originality/value: The paper is focused on the Brazilian capital market, in which there is a lack in the literature about the study of the leverage behavior and its immaturity, where factors related to the companies and characteristics in contracting leverage alter the demand of credit. Design/methodology/approach: To achieve its objective, initially a graphical analysis of market and book debt evolution was carried out, and a GMM-Sys regression model through panel data was estimated to identify the stability of leverage along time. Findings: The results indicate a reduction of the market leverage with higher statistical significance after 2008, indicating, both in the graphic and the regression analysis, that the use of debt was unstable in the first period analyzed (1995-2007), behavior not observed during the second period (2008-2015) when analyzed market measures in which capital structure stability was prevalent, with considerable reduction of corporate leverage, otherwise, book measures of leverage would have shown a stability trend in leverage patterns. The principal determinants of the capital structure were the tax benefits (book debt) and the size (market debt), supporting trade-off theory.

scholarly journals Spectrophotometric Evaluation of Enamel Color Variation Using Infiltration Resin Treatment of White Spot Lesions at One Year Follow-Up

2020 ◽  
Vol 8 (2) ◽  
pp. 35 ◽  
Author(s):  
Roberto Lo Giudice ◽  
Frank Lipari ◽  
Francesco Puleio ◽  
Angela Alibrandi ◽  
Fabrizio Lo Giudice ◽  
...  
Keyword(s):  
Color Change ◽  
Statistical Significance ◽  
Color Variation ◽  
White Spot ◽  
White Spot Lesions ◽  
Color Changes ◽  
The Difference ◽  
One Year ◽  
The Stability

The aim of this study is to evaluate the color changes and the stability at a 1-year follow-up of white spot lesions (WSLs) treated with an infiltrating technique by using etching and TEGDMA resin. The color of 22 white spot lesions and the sound adjacent enamel (SAE) were assessed with a spectrophotometer at T0 (baseline), T1 (after treatment), and T2 (1 year after). The color change ΔE (WSLs-SAE) at T0 vs. T1 were compared to evaluate the camouflage effect efficiency, and at T1 vs. T2 to assess the stability of outcomes. To evaluate the effect on the treatment outcome of gender, the presence or not of previous orthodontic treatment, WSLs onset more/less than 10 years, the age of the patient, and the ΔE WSL (T0 vs. T1) was analyzed. The difference between ΔE (WSLs-SAE) at T0 and T1 resulted in statistical significance (p < 0.01). No statistical difference was found between ΔE (WSLs-SAE) at T1 vs. T2. The variables considered showed no statistical differences in treatment outcomes. The results of our investigation show that the technique used is immediately effective and the camouflage effect keeps up and steady one year after treatment. Such results do not appear to be influenced by analyzed clinical variables.

Flow and stability of helium II between concentric cylinders

1988 ◽  
Vol 186 ◽  
pp. 163-198 ◽  
Author(s):  
Russell J. Donnelly ◽  
Michelle M. Lamar
Keyword(s):  
Flow Problem ◽  
Present Knowledge ◽  
Basic Flow ◽  
Quantized Vortices ◽  
Uniform Rotation ◽  
Future Directions ◽  
Helium Ii ◽  
Concentric Cylinders ◽  
The Stability

We discuss our present knowledge of the flow and stability of helium II between concentric cylinders. The flow problem for helium II leads us to consider the formation of quantized vortices in the uniform rotation of helium II in an open bucket as well as quantized circulation states and vortices in a rotating annulus. We then consider how to treat the first appearance of vortices in the presence of shear, which allows us to characterize the basic flow which must be examined for stability. The results suggest an explanation for heretofore unexplained experiments. Future directions for research on the stability of helium II are suggested.

IMPROVING STABILITY OF DECISION TREES

2002 ◽  
Vol 16 (02) ◽  
pp. 145-159 ◽  
Author(s):  
MARK LAST ◽  
ODED MAIMON ◽  
EINAT MINKOV
Keyword(s):  
Decision Tree ◽  
Predictive Accuracy ◽  
Statistical Significance ◽  
Training Data ◽  
Tree Level ◽  
Information Theoretic ◽  
Tree Algorithms ◽  
Tree Models ◽  
The Stability ◽  
Information Theoretic Method

Decision-tree algorithms are known to be unstable: small variations in the training set can result in different trees and different predictions for the same validation examples. Both accuracy and stability can be improved by learning multiple models from bootstrap samples of training data, but the "meta-learner" approach makes the extracted knowledge hardly interpretable. In the following paper, we present the Info-Fuzzy Network (IFN), a novel information-theoretic method for building stable and comprehensible decision-tree models. The stability of the IFN algorithm is ensured by restricting the tree structure to using the same feature for all nodes of the same tree level and by the built-in statistical significance tests. The IFN method is shown empirically to produce more compact and stable models than the "meta-learner" techniques, while preserving a reasonable level of predictive accuracy.

The stability of child abuse reports: a longitudinal study of the reporting behaviour of young adults

2000 ◽  
Vol 30 (3) ◽  
pp. 529-544 ◽  
Author(s):  
D. M. FERGUSSON ◽  
L. J. HORWOOD ◽  
L. J. WOODWARD
Keyword(s):  
Sexual Abuse ◽  
Child Abuse ◽  
Relative Risk ◽  
Young People ◽  
Latent Class ◽  
False Negative ◽  
Physical Punishment ◽  
Adjustment Problems ◽  
Psychiatric State ◽  
The Stability

Background. The aims of this study were to use longitudinal report data on physical and sexual abuse to examine the stability and consistency of abuse reports.Methods. The study was based on the birth cohort of young people studied in the Christchurch Health and Development Study. At ages 18 and 21 years, these young people were questioned about their childhood exposure to physical punishment and sexual abuse. Concurrent with these assessments, sample members were also assessed on measures of psychiatric disorder and suicidal behaviour.Results. Reports of childhood sexual abuse and physical punishment were relatively unstable and the values of kappa for test–retests of abuse reporting were in the region of 0·45. Inconsistencies in reporting were unrelated to the subject's psychiatric state. Latent class analyses suggested that: (a) those not abused did not falsely report being abused; and (b) those who were abused provided unreliable reports in which the probability of a false negative response was in the region of 50%. Different approaches to classifying subjects as abused led to wide variations in the estimated prevalence of abuse but estimates of the relative risk of psychiatric adjustment problems conditional on abuse exposure remained relatively stable.Conclusions. There was substantial unreliability in the reporting of child abuse. This unreliability arose because those who were subject to abuse often provided false negative reports. The consequences of errors in reports appear to be: (a) that estimates of abuse prevalence based on a single report are likely to seriously underestimate the true prevalence of abuse; while (b) estimates of the relative risk of psychiatric adjustment problems conditional on abuse appear to be robust to the effects of reporting errors.

scholarly journals Gap junctions and connexin hemichannels in the regulation of haemostasis and thrombosis

2015 ◽  
Vol 43 (3) ◽  
pp. 489-494 ◽  
Author(s):  
Sakthivel Vaiyapuri ◽  
Gagan D. Flora ◽  
Jonathan M. Gibbins
Keyword(s):  
Gap Junctions ◽  
Intercellular Communication ◽  
Heart Attack ◽  
Wound Repair ◽  
Future Directions ◽  
Tissue Responses ◽  
The Stability ◽  
And Control ◽  
Connexin Hemichannels

Platelets are involved in the maintenance of haemostasis but their inappropriate activation leads to thrombosis, a principal trigger for heart attack and ischaemic stroke. Although platelets circulate in isolation, upon activation they accumulate or aggregate together to form a thrombus, where they function in a co-ordinated manner to prevent loss of blood and control wound repair. Previous report (1) indicates that the stability and functions of a thrombus are maintained through sustained, contact-dependent signalling between platelets. Given the role of gap junctions in the co-ordination of tissue responses, it was hypothesized that gap junctions may be present within a thrombus and mediate intercellular communication between platelets. Therefore studies were performed to explore the presence and functions of connexins in platelets. In this brief review, the roles of hemichannels and gap junctions in the control of thrombosis and haemostasis and the future directions for this research will be discussed.

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