THE MELATONIN RECEPTORS AND THEIR ASSOCIATED PROTEIN COMPLEXES

International audienc

SPS-prepared targets for sputtering deposition of phase change films.

Phase-change materials like thin films from the systems [Ge1-xPbx]Te and Ge[Te1-xSex] are of interest for data storage. For these compositions amorphous materials can not be obtained by melt quenching. However, Suitable films can be obtained using RF sputtering. Spark plasma sintering (SPS) was used to densify the powders to obtain large targets. Synthesis conditions and characterisations of the targets are reported. Amorphous nano films were obtained using the sintered targets and characterised

A COMPREHENSIVE SURVEY ON DETECTING BLACK HOLE ATTACK IN MOBILE AD-HOC NETWORK (MANET)

The infrastructure-less nature and mobility of nodes in mobile ad-hoc network (MANET) make it to be very susceptible to various attacks. Besides, owing to its flexibility and simplicity, there is no predefined time or permission set for nodes to leave or join the network and each node can act as a client or server.  Nevertheless, securing communication between nodes has become a challenging problem than in other types of network. Attacks in MANET range into different categories. Black hole attack is one of the attacks that has been addressed by many researchers in the recent years. It does occur when a harmful mobile node called black hole becomes a part of the network and tries to use its malicious behaviors by sending fake route reply packets (RREP) for any received route request packets (RREQ). When these faked packets arrive to the source node, it does reply to them by sending data packet via the established route. Once the packets are received by the black hole, it drops them before reaching the destination.  Hence, preventing the source node from reaching the intended destination. In this paper, we present an overview of a wide range of techniques suggested in the literature for detecting and preventing black hole attacks in mobile ad hoc network. Additionally, the effect of each approach on the network performance is also presented

Mono inverter dual parallel PMSM - Structure and Control strategy

This paper presents a dual parallel connected PMSM fed by a single power inverter. Both motors have to respect the synchronism even if they have different load torque. The rotor position of the two motors that is to say the load applied on each motor are consequently permanently compared. The motor with the highest load is set as the master one and is auto-piloted. The other one which has the same applied voltage has the same electric pulsation and so the same speed rotation. The change of the master choice is done whereas the load applied on the machine is changing so that oscillations appear during this change. The steady state is however rapidly attained and the synchronism stays always observed

Neurofeedback Treatment in Attention Deficit Hyperactivity Disorder and Comorbit Aggression

The present thesis focused on specificity and long-term effects of slow-cortical potential neurofeedback (SCP-NF) treatment for children with ADHD in a large multicenter randomized controlled trial, on its relation to aggressive behaviors as a common comorbidity of ADHD, and on neuroimaging and psychophysiological subtypes of aggression. We assessed clinical efficacy on ADHD and comorbid aggression in comparison to a semi-active control group which controlled for unspecific effects. The role of self-regulation and learning of SCPs was systematically evaluated. Additionally, we investigated amygdala-specific activity in aggression subtypes in a large multicenter cohort, which might provide a possible putative NF target. The first two studies assessed 150 children aged 7–9 years diagnosed with ADHD which were randomized to 25 sessions of feedback of SCPs (NF) or feedback of coordination of the supraspinatus muscles (EMG). The primary outcome was the change in ADHD symptoms rated by parents four weeks and six-month after treatment end. Slow-cortical potential neurofeedback showed significant superiority over the semi-active control condition with medium effect sizes four weeks after treatment. This superiority of SCP-NF over the semi-active control group became non-significant 6 months after treatment end. However, taking together all assessments, SCP-NF showed a stable improvement with large effect sizes following treatment and EMG-BF showed worsening of symptoms one month after treatment, with subsequent remission at follow-up, leading to non-significant group differences six months after treatment end. Assessment of self-regulation showed significant ability to self-regulate slow-cortical potential when direct feedback is given and improvement of self-regulation skills indicate specificity of SCP-NF for selected subscales after training, but not at follow-up. In sum, these findings suggest shared specific and unspecific effects contributing to this clinical outcome. The third study aimed to disentangle aggression-related subtypes at a neural level. In total 177 participants (n=108 cases with aggression-related disorders and n= 69 typically developing peers), aged 8-18 years were assessed across nine sites in Europa during a well-established emotional face-matching fMRI task. Additionally, simultaneous skin conductance recordings were acquired in a subsample (n=64). Children and adolescents with aggression-related problems showed higher amygdala activity in response to negative faces compared to typically developing peers. Further, we showed distinct amygdala activity for subtypes of aggression. Callous-unemotional traits showed to moderate both central (amygdala) and peripheral (SC) responses. These findings increase insights which could be used for personalized diagnostics and treatments