DCDIDP: A distributed, collaborative, and data-driven intrusion detection and prevention framework for cloud computing environments

With the growing popularity of cloud computing, the exploitation of possible vulnerabilities grows at the same pace; the distributed nature of the cloud makes it an attractive target for potential intruders. Despite security issues delaying its adoption, cloud computing has already become an unstoppable force; thus, security mechanisms to ensure its secure adoption are an immediate need. Here, we focus on intrusion detection and prevention systems (IDPSs) to defend against the intruders. In this paper, we propose a Distributed, Collaborative, and Data-driven Intrusion Detection and Prevention system (DCDIDP). Its goal is to make use of the resources in the cloud and provide a holistic IDPS for all cloud service providers which collaborate with other peers in a distributed manner at different architectural levels to respond to attacks. We present the DCDIDP framework, whose infrastructure level is composed of three logical layers: network, host, and global as well as platform and software levels. Then, we review its components and discuss some existing approaches to be used for the modules in our proposed framework. Furthermore, we discuss developing a comprehensive trust management framework to support the establishment and evolution of trust among different cloud service providers. © 2011 ICST

Photoemission studies of the near Fermi level spectral weight shifts in FeSe1-xTex superconductor

Our valence band photoelectron spectroscopic studies show a temperature dependent spectral weight transfer near the Fermi level in the Fe-based superconductor FeSe1-xTex. Using theoretical band structure calculations we have shown that the weight transfer is due to the temperature induced changes in the Fe(Se,Te)4 tetrahedra. These structural changes lead to shifts in the electron occupancy from the xz/yz and x2-y2 orbitals to the 3z2-r2 orbitals indicating a temperature induced crossover from a metallic state to an Orbital Selective Mott (OSM) Phase. Our study presents the observation of a temperature induced crossover to a low temperature OSM phase in the family of Fe chalcogenides.Comment: 10 pages, 4 figure

Efficacy of Mindfulness-Based Stress Reduction on Mood States of Veterans With Post-Traumatic Stress Disorder

Background: Mood and negative emotional states and their regulation in patients with post-traumatic stress disorder have family, social and employment problems. Practices that could be helpful in this area are highly important. Objectives: The current study aimed to investigate the influence of mindfulness-based stress reduction (MBSR) in improving mood state of combat veterans. Patients and Methods: In this randomized clinical trial study, participants were selected from the patients referring to the counseling center of the veterans. The participants had post-traumatic stress disorder according to diagnostic and statistical manual of mental disorders, fourth edition, text review (DSM-IV-TR). Sixty- two patients were randomly assigned into 2 groups: (31 for MBSR and 31 for the control group). Results: Analysis showed that there were no significant differences between the groups at baseline (P < 0.05). Comparison of the results between the two groups before the two-step test showed that anger and vitality scales between the two groups have no significant differences, but on the other scales (depression, dizziness, fatigue and tension), differences between pre and post-test groups were significant in the two groups. Conclusions: It was concluded that mindfulness-based stress reduction is a useful method to regulate the mood state in veterans with post-traumatic stress disorder (PTSD) who have difficulties in mood and emotions in Kashan

Effects of mindful parenting training on clinical symptoms in children with attention deficit hyperactivity disorder and parenting stress: Randomized controlled trial

Abstract Background: Children with attention deficit hyperactivity disorder (ADHD) are at risk of impairment in multiple domains. This study aimed to investigate the effectiveness of mindful parenting training in reducing clinical symptoms in children with ADHD and parenting stress of their parents. Methods: This randomized clinical trial was conducted on 2 groups (experimental and control) in 3 phases (pretest, posttest, and 8 weeks’ follow-up). Sixty children with ADHD, who had been referred by the child psychiatrist in the Iranian city of Kashan in the second half of the year 2016, were selected along with their mothers. The mothers were assigned to one of the 2 groups via permuted blocked randomization. The mothers completed the parenting stress index–short form (PSI–SF 36) and the Swanson, Nolan, and Pelham Parent and Teacher rating scale (SNAP-IV). All the children in both groups received pharmacotherapy with either risperidone or Ritalin. The intervention group received 8 sessions (1 session each week, each session lasting 90 minutes) of mindful parenting training based on the Kabat-Zinn protocol. The data were analyzed using SPSS, version 20, via the t test, χ2 test, repeated measures analysis of variance, and nonparametric Friedman test. Results: This study showed a reduction in parenting stress, negative parent-child interactions, and children’s problematic characteristics in the mindful parenting training group compared with the control group in the posttest and follow-up. Our results also demonstrated a significant improvement in ADHD symptoms in the experimental group by comparison with the control group in the posttest and follow-up. Conclusion: Mindful parenting training was effective in reducing parenting stress and ADHD symptoms in our intervention group. Keywords ● Mindfulness ● Attention deficit disorder with hyperactivity ● Parenting ● Stress ● Physiologica

Personality Types and Emotional Intelligence as Predictors of Academic Achievement in Students at Kashan University of Medical Sciences

Background: Type of personality and emotional intelligence affects a person’s mental function and capabilities, which can influence academic achievement. Objectives: This study was designed to evaluate the relationship between emotional intelligence, type of character and academic achievement. Materials and Methods: This is a cross-sectional study on students of Kashan University of Medical Sciences in 2012. In total 221 students participated in the study. In addition to demographic information, a Five Factor Personality Questionnaire and Emotional Quotient Inventory were used. Participants completed questionnaires in their classrooms. Data were analyzed using SPSS software version 16. Descriptive statistics were calculated and analysis of variance and regression analysis were used. Results: Students in the various disciplines were not statistically different in terms of personality. Students with different grade point averages were significantly different in relation to: problem-solving, happiness, self-actualization, optimism, self-respect, flexibility and total emotional quotient (EQ) scores (P < 0.05). However, no statistically significant differences were observed between personality types in students with different grade point average. All variables (EQ, agreeableness, extroversion, openness, consciousness) except neuroticism were excluded from the regression model. Conclusions: Some components of personality types and emotional intelligence are predictors of academic achievement. Therefore, attention to these issues in students is needed to ensure the best achievement gains

Disorder and excess modes in hard-sphere colloidal systems

The anomalous thermodynamic properties of glasses remain incompletely understood, notably the anomalous peak in the heat capacity at low temperatures; it is believed to be due to an excess of low-frequency vibrational modes and a manifestation of the structural disorder in these systems. We study the thermodynamics and vibrational dynamics of colloidal glasses and (defected) crystals. The experimental determination of the vibrational density of states allows us to directly observe a strong enhancement of low-frequency modes. Using a novel method (Zargar R. et al., Phys. Rev. Lett. 110 (2013) 258301) to determine the free energy, we also determine the entropy and the specific heat experimentally. It follows that the emergence of the excess modes and high values of the specific heat are directly related and are specific to the glass: even for solids containing a very large amount of defects, both the low-frequency density of states and the specific heat are significantly smaller than for the glass

Cytogenetic diagnosis of Roberts SC phocomelia syndrome: First report from Kashmir

There are several syndromes in which specific mitotic chromosomal abnormalities can be seen, like premature centromere separation, premature (sister) chromatid separation, and somatic aneuploidies. Identifications of such specific cytogenetic findings can be the key factor that leads towards the diagnosis of syndromes like Roberts SC phocomelia. The case presented here as Roberts SC phocomelia syndrome was identified as a child with multiple congenital anomalies and dysmorphic features. Conventional cytogenetic analysis of the case revealed premature sister chromatid separation. The premature centromeric separation was also confirmed by C banding analysis of the child. It is the first and the only case of Roberts SC phocomelia diagnosed from this part of the world. The present case report emphasizes the importance of conventional cytogenetics in the diagnosis of such syndromes