there are several conflicting evidences showing the effect of morphine on learning and memory processes. in the present study the effect of chronic morphine administration on passive avoidance, active avoidance and spatial learning and memory of morphine dependent male rats using passive avoidance shuttle box and morris water maze tasks were investigated, respectively. male rats received morphi...

PURPOSE The purpose of the present study was to assess stress coping strategies employed by patients with psychogenic non-epileptic seizures (PNES) and determine whether these approaches were associated with other psychopathological features. Ineffective stress coping strategies can have a variety of unhealthy consequences fueling psychopathology just as psychopathology can also have an impact ...

It has been reported that obstacle avoidance reactions during gait have very short latencies. This raises the question whether the cortex can be involved, as it is in voluntary reactions. In this study, latencies of obstacle avoidance (OA) reactions were determined and related to latencies of voluntary stride modifications and simple reaction times (SRT) of hand and foot. Twenty-five healthy yo...

Immunoglobulin (Ig) E-mediated sensitization to domestic inhalant allergens (eg, dust mite, cockroach, cat, and dog) is the most important risk factor for asthma. The severity of asthma increases among atopic patients exposed to high levels of sensitizing allergen. In addition, synergism between high allergen exposure and respiratory virus infection increases the risk of asthma exacerbation. Ho...

In this paper, a robust and safety distributed formation control with unknown external disturbances is researched. For multi-quadrotors system, novel nonsingular terminal sliding mode strategy studied to realize the collision avoidance inter-quadrotor avoidance. The controller redesigned once system reaches small field of surface solve existence singular quadrotor fixed time convergence singula...

PURPOSE At this time, there is uncertainty regarding whether allergen avoidance is the most appropriate strategy for managing or preventing allergies. The purpose of this study was to evaluate the effectiveness of allergen avoidance in the prevention of allergic symptoms in previously sensitized patients and newborns that have the potential to develop allergies. METHODS We performed online se...

Due to their efficient locomotion and natural tolerance to hazardous environments, spherical robots have wide applications in security surveillance, exploration of unknown territory and emergency response. Numerous studies have been conducted on the driving mechanism, motion planning and trajectory tracking methods of spherical robots, yet very limited studies have been conducted regarding the ...

Identifying susceptibility genes for endophenotypes by studying analogous behaviors across species is an important strategy for understanding the pathophysiology underlying psychiatric disorders. This approach provides novel biological pathways plus validated animal models critical for selective drug development. One such endophenotype is avoidance behavior. In the present study, novel automate...

{ This paper describes the Bremen Autonomous Wheelchair project. It shows that common static re strategies for ultrasonic sensors are inherently unsafe and proposes a new adaptive re strategy which delivers a complete coverage of the environment of the robot. Furthermore, a new obstacle avoidance approach for shared-control robotics systems is described in detail.

This paper presents a controller allowing to drive a mobile robot towards a target in a cluttered environment. The proposed method combines visual servoing techniques allowing to track the target, with an obstacle avoidance strategy based on the information provided by a 2D laser range sensor. Simulation results are presented at the end of the paper.