The Complex Nature of School Violence: Attitudes Toward Aggression, Empathy and Involvement Profiles in Violence

Psychology Research and Behavior Management ◽

10.2147/prbm.s313831 ◽

2021 ◽

Vol Volume 14 ◽

pp. 575-586

Author(s):

África Martos Martínez ◽

María del Mar Molero Jurado ◽

María del Carmen Pérez-Fuentes ◽

María del Mar Simón Márquez ◽

Ana Belén Barragán Martín ◽

...

Keyword(s):

School Violence ◽

Complex Nature ◽

Attitudes Toward Aggression ◽

Violence Attitudes

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Psychological and social factors responsible for school violence: العوامل النفسية والاجتماعية المسؤولة عن العنف المدرسي

المجلة العربية للعلوم ونشر الأبحاث مجلة العلوم التربوية والنفسية ◽

10.26389/ajsrp.c290421 ◽

2021 ◽

Vol 5 (41) ◽

pp. 137-124

Author(s):

Soufi Abdelouaheb Soufi Abdelouaheb

Keyword(s):

Social Learning ◽

School Violence ◽

Learning Theory ◽

Student Teacher ◽

Social Factors ◽

Social Learning Theory ◽

Biological Theory ◽

Complex Nature ◽

Psychology Education

The school violence is one of the most important topics that has attracted the interest of many researchers and specialists in psychology, education and sociology because of its complex nature for the student, teacher and the school as a whole for decades. This study was an attempt to identify the most important psychological and social factors behind the spread of violence in schools, And its interpretation through a set of theoretical theories of psychoanalysis, social learning, theory of frustration and aggression, biological theory, and the most prominent aspects of violent personality.

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Three-Dimensional reconstruction of isolated centrosomes by automated electron tomography

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100169286 ◽

1994 ◽

Vol 52 ◽

pp. 310-311

Author(s):

M.B. Braunfeld ◽

M. Moritz ◽

B.M. Alberts ◽

J.W. Sedat ◽

D.A. Agard

Keyword(s):

Electron Tomography ◽

Three Dimensional ◽

Vital Role ◽

Complex Nature ◽

Animal Cells ◽

Microtubule Organizing Center ◽

Nucleation Sites ◽

Dimensional Reconstruction ◽

Organizing Center ◽

Resolution Model

In animal cells, the centrosome functions as the primary microtubule organizing center (MTOC). As such the centrosome plays a vital role in determining a cell's shape, migration, and perhaps most importantly, its division. Despite the obvious importance of this organelle little is known about centrosomal regulation, duplication, or how it nucleates microtubules. Furthermore, no high resolution model for centrosomal structure exists.We have used automated electron tomography, and reconstruction techniques in an attempt to better understand the complex nature of the centrosome. Additionally we hope to identify nucleation sites for microtubule growth.Centrosomes were isolated from early Drosophila embryos. Briefly, after large organelles and debris from homogenized embryos were pelleted, the resulting supernatant was separated on a sucrose velocity gradient. Fractions were collected and assayed for centrosome-mediated microtubule -nucleating activity by incubating with fluorescently-labeled tubulin subunits. The resulting microtubule asters were then spun onto coverslips and viewed by fluorescence microscopy.

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