Stability of Implicit Self-Esteem Among Internetaddicted College Students in China

2017 ◽  
Vol 45 (2) ◽  
pp. 339-352 ◽  
Author(s):  
Lingbo Zhao ◽  
Xianglian Yu ◽  
Lixian Zhang ◽  
Zhihong Ren
Keyword(s):  
College Students ◽  
Internet Addiction ◽  
Positive Feedback ◽  
Self Esteem ◽  
Group Differences ◽  
The Internet ◽  
Control Group ◽  
Long Term Stability ◽  
The Stability

We explored the stability of, and between-group differences in, the implicit self-esteem of Internet-addicted and Internet-nonaddicted college students in China. Internet addiction was assessed using Young's Internet Addiction Scale and the participants comprised 52 Internet addicts (26 men, 26 women) and 52 Internet nonaddicts (26 men, 26 women). We then used the Implicit Association Test to assess levels of implicit self-esteem, employing a 2 (addiction, nonaddiction) × 2 (positive feedback, negative feedback) between-subjects factorial design. The pretest implicit self-esteem level of the Internet-addicted group was significantly higher than that of the control group; however, the implicit self-esteem levels of both groups were unstable. Positive feedback did not change the level of implicit self-esteem of the Internet addiction group. In future studies researchers need to pay more attention to the measurement of implicit self-esteem, long-term stability, and addiction to online games.

scholarly journals Evaluation of long-term stability of mesiodistal axial inclinations of maxillary molars through panoramic radiographs in subjects treated with Pendulum appliance

2016 ◽  
Vol 21 (1) ◽  
pp. 67-74 ◽  
Author(s):  
Caroline Andrade Rocha ◽  
Renato Rodrigues de Almeida ◽  
José Fernando Castanha Henriques ◽  
Carlos Flores-Mir ◽  
Marcio Rodrigues de Almeida
Keyword(s):  
Panoramic Radiograph ◽  
Post Treatment ◽  
Control Group ◽  
Long Term Stability ◽  
Maxillary Molars ◽  
Group Data ◽  
Maxillary Molar ◽  
Pendulum Appliance ◽  
The Stability

Objective: To evaluate the stability of mesiodistal inclination of maxillary molars produced by a pendulum appliance, five years after completion of orthodontic treatment. Angulation changes were compared to an untreated sample. Methods: The sample consisted of 20 patients (14 females and 6 males) with Class II, Division 1 malocclusion that was treated through molar distalization with a pendulum appliance followed by cervical headgear and full fixed appliances. Maxillary molar inclination was evaluated through panoramic radiograph. The mean age at pretreatment was 14.3 ± 1.6 years, whereas at immediate post-treatment it was 18.6 ± 1.8 years, and at long-term post-treatment it was 23.8 ± 2.0 years. A control group of 16 untreated individuals with untreated normocclusion ranging in age from 12 to 17 years old were used as comparison group. Data were statistically analyzed with independent t-tests and ANOVA test followed by Tukey post-hoc tests. Results: Statistically significant differences were found between T1 (94.50) and T2 (98.80) as well as between T2 and T3 (94.70) for maxillary first molars. Maxillary second molars did not show any statistically significant positional changes during the evaluated time periods T1 (107.50), T2 (109.30) and T3 (106.90). Conclusion: Although maxillary first molars underwent distal crown inclination immediately after treatment, approximately five years thereafter their roots tended to upright close to the pretreatment positions.

Effects of self-concealment and self-esteem on Internet addiction in college students

2021 ◽  
Vol 49 (7) ◽  
pp. 1-9
Author(s):  
Guangya Zhou ◽  
Enguo Wang
Keyword(s):  
College Students ◽  
Internet Addiction ◽  
Indirect Effect ◽  
Positive Relationship ◽  
Self Esteem ◽  
The Self ◽  
The Internet ◽  
Shed Light

We investigated the relationships between self-concealment, selfesteem, and Internet addiction in college students. Participants (N = 589 undergraduates) completed the Self-Concealment Scale, the Rosenberg Self-Esteem Scale, and the Internet Addiction Diagnostic Questionnaire. Results show that self-esteem partially mediated the positive relationship between self-concealment and Internet addiction. Further, the bootstrapping analysis results reveal that self-concealment had a significant indirect effect via self-esteem on Internet addiction among college students. These findings extend previous studies and shed light on ways to reduce Internet addiction from a positive and meaningful perspective through the effects of self-concealment and selfesteem.

A Comparative Study of Uses of the Internet among College Students with and without Internet Addiction

2009 ◽  
Vol 105 (3_suppl) ◽  
pp. 1103-1112 ◽  
Author(s):  
Şahin Kesici ◽  
İsmail Şahin
Keyword(s):  
College Students ◽  
Comparative Study ◽  
Internet Addiction ◽  
Effect Sizes ◽  
Group Differences ◽  
The Internet ◽  
Social Functions ◽  
Important Group

The current study examined uses of the Internet among college students classified as addicted to the Internet or not. Data were gathered from 384 college students. Students classified as Internet Addicted used the Internet more for social functions, leisure functions, and virtual emotional functions, when compared to students considered as Internet Nonaddicted. Effect sizes were large, indicating important group differences in uses of the Internet.

The Stability of the WHO Reference Thromboplastin NIBS & C 67/40

1979 ◽  
Vol 42 (04) ◽  
pp. 1135-1140 ◽  
Author(s):  
G I C Ingram
Keyword(s):  
Human Brain ◽  
Collaborative Study ◽  
Calibration Constant ◽  
Long Term Stability ◽  
Freeze Dried ◽  
Show Evidence ◽  
Human Material ◽  
Reference Preparation ◽  
The Stability

SummaryThe International Reference Preparation of human brain thromboplastin coded 67/40 has been thought to show evidence of instability. The evidence is discussed and is not thought to be strong; but it is suggested that it would be wise to replace 67/40 with a new preparation of human brain, both for this reason and because 67/40 is in a form (like Thrombotest) in which few workers seem to use human brain. A �plain� preparation would be more appropriate; and a freeze-dried sample of BCT is recommended as the successor preparation. The opportunity should be taken also to replace the corresponding ox and rabbit preparations. In the collaborative study which would be required it would then be desirable to test in parallel the three old and the three new preparations. The relative sensitivities of the old preparations could be compared with those found in earlier studies to obtain further evidence on the stability of 67/40; if stability were confirmed, the new preparations should be calibrated against it, but if not, the new human material should receive a calibration constant of 1.0 and the new ox and rabbit materials calibrated against that.The types of evidence available for monitoring the long-term stability of a thromboplastin are discussed.

Self-esteem in Recovered Bipolar and Unipolar Out-patients

1993 ◽  
Vol 163 (6) ◽  
pp. 755-762 ◽  
Author(s):  
D. Pardoen ◽  
F. Bauwens ◽  
A. Tracy ◽  
F. Martin ◽  
J. Mendlewicz
Keyword(s):  
Social Adjustment ◽  
Clinical Characteristics ◽  
Self Esteem ◽  
Normal Control Group ◽  
Basic Component ◽  
Control Group ◽  
Bipolar Patients ◽  
The Relationship ◽  
Depressive Patients

The hypothesis of a low self-esteem in depressive patients was tested using the Rosenberg Self-Esteem Scale in 24 recovered unipolar and 27 recovered bipolar patients, compared with a normal control group of 26 subjects matched for age and sex. The hypothesis was confirmed only for unipolars; bipolar patients presented a self-esteem score not significantly different from normal scores. Self-esteem was not related to clinical characteristics of the affective disorder, suggesting that low self-esteem may be a basic component of a depression-prone personality. The investigation of the relationship between self-esteem and social adjustment confirmed the presence of social conformism in bipolar patients and rigidly set low self-esteem in unipolar patients. These results should stimulate the evaluation of different psychotherapeutic treatments in the long-term psychosocial management of affectively ill patients.

scholarly journals Limitations and Challenges in the Stability of Cysteamine Eye Drop Compounded Formulations

2021 ◽  
Vol 15 (1) ◽  
pp. 2
Author(s):  
Cristina Martín-Sabroso ◽  
Mario Alonso-González ◽  
Ana Fernández-Carballido ◽  
Juan Aparicio-Blanco ◽  
Damián Córdoba-Díaz ◽  
...  
Keyword(s):  
Shelf Life ◽  
Stability Study ◽  
Eye Drops ◽  
Microbiological Analysis ◽  
Nitrogen Gas ◽  
Long Term Stability ◽  
Main Degradation Product ◽  
The Stability ◽  
Unstable Molecule

Accumulation of cystine crystals in the cornea of patients suffering from cystinosis is considered pathognomonic and can lead to severe ocular complications. Cysteamine eye drop compounded formulations, commonly prepared by hospital pharmacy services, are meant to diminish the build-up of corneal cystine crystals. The objective of this work was to analyze whether the shelf life proposed for six formulations prepared following different protocols used in hospital pharmacies is adequate to guarantee the quality and efficacy of cysteamine eye drops. The long-term and in-use stabilities of these preparations were studied using different parameters: content of cysteamine and its main degradation product cystamine; appearance, color and odor; pH and viscosity; and microbiological analysis. The results obtained show that degradation of cysteamine was between 20% and 50% after one month of storage in the long-term stability study and between 35% and 60% in the in-use study. These data confirm that cysteamine is a very unstable molecule in aqueous solution, the presence of oxygen being the main degradation factor. Saturation with nitrogen gas of the solutions offers a means of reducing cysteamine degradation. Overall, all the formulae studied presented high instability at the end of their shelf life, suggesting that their clinical efficacy might be dramatically compromised.

scholarly journals Self-Esteem Evaluation in Children and Adolescents Suffering from ADHD

2013 ◽  
Vol 9 (1) ◽  
pp. 96-102 ◽  
Author(s):  
Luigi Mazzone ◽  
Valentina Postorino ◽  
Laura Reale ◽  
Manuela Guarnera ◽  
Valeria Mannino ◽  
...  
Keyword(s):  
Children And Adolescents ◽  
Treatment Strategies ◽  
Well Being ◽  
Self Esteem ◽  
Control Group ◽  
Healthy Controls ◽  
Adhd Symptoms ◽  
The Relationship ◽  
Drug Free

Background: Several recent studies investigated the relationship between self-esteem and ADHD, however, the results are still controversial. In the present study we analyze the characteristics of self-esteem in a sample of children and adolescents suffering from ADHD, with a particular focus on the relationship between ADHD symptoms severity and treatment strategies. Methods: A total of 85 patients with ADHD (44 drug-free and 41 drug-treated, 23 of which atomoxetine-treated and 18 Methylphenidate-treated) and 26 healthy controls were enrolled in the study in order to evaluate self-esteem using the Self-esteem Multidimensional Test (TMA). Results: ADHD subjects revealed lower scores on all self-esteem domains compared to controls. Both ADHD drug-free (47.1%) and ADHD drug-treated (44.1%) groups showed significantly higher rates of subjects in the pathological range as compared to normal control group (8.8%) (p <.001) with a higher percentage of subjects in the pathological range. Among ADHD drug-treated subjects, the methylphenidate group showed higher self-esteem scores as compared to the atomoxetine group. Conclusion: A lower self-esteem profile is more common in subjects suffering from ADHD than in healthy controls, suggesting the importance of an early detection of psychological well-being in these children in order to reduce the ADHD symptoms long-term impacts.

LONG-TERM STABILITY ANALYSIS OF ACOUSTIC ABSORBING BOUNDARY CONDITIONS

2013 ◽  
Vol 23 (11) ◽  
pp. 2129-2154 ◽  
Author(s):  
HÉLÈNE BARUCQ ◽  
JULIEN DIAZ ◽  
VÉRONIQUE DUPRAT
Keyword(s):  
Stability Analysis ◽  
Boundary Conditions ◽  
Absorbing Boundary Conditions ◽  
Computational Domain ◽  
Acoustic Wave Equation ◽  
Absorbing Boundary ◽  
Term Stability ◽  
Long Term Stability ◽  
The Stability

This work deals with the stability analysis of a one-parameter family of Absorbing Boundary Conditions (ABC) that have been derived for the acoustic wave equation. We tackle the problem of long-term stability of the wave field both at the continuous and the numerical levels. We first define a function of energy and show that it is decreasing in time. Its discrete form is also decreasing under a Courant–Friedrichs–Lewy (CFL) condition that does not depend on the ABC. Moreover, the decay rate of the continuous energy can be determined: it is exponential if the computational domain is star-shaped and this property can be illustrated numerically.

A Review of Preparation and Tribological Applications of Pickering Emulsion

2021 ◽  
pp. 1-27
Author(s):  
Yichen Bao ◽  
Kai Liu ◽  
Quan Zheng ◽  
Lulu Yao ◽  
Yufu Xu
Keyword(s):  
Pickering Emulsion ◽  
Solid Particles ◽  
Preparation Methods ◽  
Factors Affecting ◽  
Long Term Stability ◽  
New Strategy ◽  
New Type ◽  
The Stability ◽  
Near Future

Abstract Pickering emulsion is a new type of stable emulsion made by ultra-fine solid particles instead of traditional surfactants as stabilizers, which has received widespread attention in recent years. The preparation methods of stator-rotor homogenization, high-pressure homogenization, and ultrasonic emulsification were compared with others in this work. The main factors affecting the stability of Pickering emulsion are the surface humidity of the solid particles, the polarity of the oil phase, and the oil-water ratio. These factors could affect the nature of the solid particles, the preparation process of Pickering emulsion and the external environment. Consequently, the long-term stability of Pickering emulsion is still a challenge. The tribological investigations of Pickering emulsion were summarized, and the multifunctional Pickering emulsion shows superior prospects for tribological applications. Moreover, the latest development of Pickering emulsion offers a new strategy for smart lubrication in the near future.

Factors Related to Phone Snubbing Behavior in Emerging Adults

2020 ◽  
pp. 164-187 ◽  
Author(s):  
Martina Benvenuti ◽  
Agata Błachnio ◽  
Aneta Małgorzata Przepiorka ◽  
Vesela Miroslavova Daskalova ◽  
Elvis Mazzoni
Keyword(s):  
Gender Differences ◽  
Emerging Adulthood ◽  
Emerging Adults ◽  
Internet Addiction ◽  
Well Being ◽  
Self Esteem ◽  
Self Control ◽  
The Internet ◽  
Control Scale ◽  
Online Study

Smartphones are a fundamental part of emerging adults' life. The aim of this chapter is to determine which factors play a role in “phubbing” during emerging adulthood as well as to propose and test a model of this phenomenon. We tested a model of relations between phubbing, self-esteem, self-control, well-being, and internet addiction. The following measures were used: the Rosenberg Self Esteem Scale, the Brief Self-Control Scale (BSCS), the Flourishing Scale, the Internet Addiction Scale, and the Phubbing Scale. The participants in the online study were 640 Italian emerging adults (526 females and 114 males), ranging in age from 18 to 29 (M = 21.7, SD = 2.18). The results showed that the model was well fitted, particularly in postulating that a decrease in the level of self-control is related to an increase in Internet addiction, that an increase in Internet addiction increases the probability of phubbing behavior, and that the level of self-esteem and well-being do not affect Internet addiction. Gender differences, in favor of males, occurred only in self-esteem.

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