The Impact of Low Self-Control on Online Harassment: Interaction with Opportunity.

Developing Internet technology has increased the rates of youth online harassment. This study examines online harassment from adolescents with low self-control and the moderating effect of opportunity. The data used in this study were collected by the Korea Institute of Criminology in 2009. The total sample size was 1,091. The results indicated that low self-control, opportunity, and gender have a significant influence on online harassment. However, these results differed according to gender; for males, low self-control significantly impacted online harassment; for females, however, only low self-control significantly impacted online harassment. Furthermore, the interaction between low self-control and opportunity did not significantly influence online harassment for either gender. The results of multiple regression strongly supported Gottfredson and Hirschi\u27s (1990) theory, but other models divided by gender only partially supported interacting effects. Thus, low self-control theory should be applied by genders. These results can help to guide investigations of online misconduct and application of digital forensics resources as well as suggest policies and practices to prevent and remediate it

Microservice Transition and its Granularity Problem: A Systematic Mapping Study

Microservices have gained wide recognition and acceptance in software industries as an emerging architectural style for autonomic, scalable, and more reliable computing. The transition to microservices has been highly motivated by the need for better alignment of technical design decisions with improving value potentials of architectures. Despite microservices' popularity, research still lacks disciplined understanding of transition and consensus on the principles and activities underlying "micro-ing" architectures. In this paper, we report on a systematic mapping study that consolidates various views, approaches and activities that commonly assist in the transition to microservices. The study aims to provide a better understanding of the transition; it also contributes a working definition of the transition and technical activities underlying it. We term the transition and technical activities leading to microservice architectures as microservitization. We then shed light on a fundamental problem of microservitization: microservice granularity and reasoning about its adaptation as first-class entities. This study reviews state-of-the-art and -practice related to reasoning about microservice granularity; it reviews modelling approaches, aspects considered, guidelines and processes used to reason about microservice granularity. This study identifies opportunities for future research and development related to reasoning about microservice granularity.Comment: 36 pages including references, 6 figures, and 3 table

Precise Spatiotemporal Control of Optogenetic Activation Using an Acousto-Optic Device

Light activation and inactivation of neurons by optogenetic techniques has emerged as an important tool for studying neural circuit function. To achieve a high resolution, new methods are being developed to selectively manipulate the activity of individual neurons. Here, we report that the combination of an acousto-optic device (AOD) and single-photon laser was used to achieve rapid and precise spatiotemporal control of light stimulation at multiple points in a neural circuit with millisecond time resolution. The performance of this system in activating ChIEF expressed on HEK 293 cells as well as cultured neurons was first evaluated, and the laser stimulation patterns were optimized. Next, the spatiotemporally selective manipulation of multiple neurons was achieved in a precise manner. Finally, we demonstrated the versatility of this high-resolution method in dissecting neural circuits both in the mouse cortical slice and the Drosophila brain in vivo. Taken together, our results show that the combination of AOD-assisted laser stimulation and optogenetic tools provides a flexible solution for manipulating neuronal activity at high efficiency and with high temporal precision

Reliability of kinematic parameters related to the timed up and Go test in patients with gait impairments

Pathologies which imply motor impairment are most common and very studied. The aim of the study is to explore the repeatability of kinematic parameters related to the Timed Up and Go test in different pathologies: hemiparesis, femur fracture, hip replacement and knee replacement. We performed the study instrumenting the patients with a commercial wearable inertial system for gait analysis: G-WALK System by BTS Bioengineering Inc. A cohort of 40 patients with neurological and orthopedic pathologies was enrolled in the study. Repeatability was assessed through the calculation of the Intraclass Correlation Coefficient. Study results showed that the motion parameters exhibited different repeatability. Moreover their repeatability changed on the basis of the kind of pathology under examination. The study demonstrated the importance of a repeatability study to be a valuable approach to select the kinematic parameters which are be able to better characterize a specific pathology and consequently the rehabilitation outcome of patients. The future investigations on enriched datasets will further confirm these preliminary results

Reliability of kinematic parameters related to the Timed Up and Go Test in patients with gait impairments

Pathologies which imply motor impairment are most common and very studied. The aim of the study is to explore the repeatability of kinematic parameters related to the Timed Up and Go test in different pathologies: hemiparesis, femur fracture, hip replacement and knee replacement. We performed the study instrumenting the patients with a commercial wearable inertial system for gait analysis: G-WALK System by BTS Bioengineering Inc. A cohort of 40 patients with neurological and orthopedic pathologies was enrolled in the study. Repeatability was assessed through the calculation of the Intraclass Correlation Coefficient. Study results showed that the motion parameters exhibited different repeatability. Moreover their repeatability changed on the basis of the kind of pathology under examination. The study demonstrated the importance of a repeatability study to be a valuable approach to select the kinematic parameters which are be able to better characterize a specific pathology and consequently the rehabilitation outcome of patients. The future investigations on enriched datasets will further confirm these preliminary results