hiv/aids because of its transmission methods has cultural, social and psychiatric impacts on patients especially in islamic countries. we investigated depression frequency in an iranian referral center for hiv/aids patients. all patients attending the counseling centre of imam khomeini hospital during 2006 and 2007 who agreed to participate were enrolled. depression was measured by beck depress...

The transfer of large volume data over computer network is important and unavoidable operation in the past, now and in any feasible future. There are a number of methods/tools to transfer the data over computer global network (Internet). In this paper the transfer of data over Internet is discussed. Several free of charge utilities to transfer the data are analyzed here. The most important arch...

Software-Defined Networking (SDN) technologies offer the possibility to automatically and frequently reconfigure the network resources by enabling simple and flexible network programmability. One of the key challenges to address when developing a new SDN-based solution is the design of a monitoring framework that can provide frequent and consistent updates to heterogeneous management applicatio...

Networks are increasingly controlled by software, and bad updates can bring down an entire network. Network operators therefore need tools to determine the impact of changes. To address this, we present static differential analysis of software-defined network (SDN) controller programs. Given two versions of a controller program our tool, Chimp, builds atop Alloy to produce a set of concrete sce...

Flawed above I n any institution like tiie NHS, where redis­ organisation is a way of life, there is an incli­ nation for the victims of change to believe that its instigators are sane and logi­ cal. The few who doubt the sanity of our leaders, be they politicians, senior managers or God-like clinicians, often tend to believe that the change induced is the product of some evil conspiracy. It is...

Blown sand is a serious problem in the district facing the Japan Sea where seasonal wind is very strong in winter. In order to prevent the blown sand, the construction technique using natural vegetations had been developed. The growth of the natural vegetations is encouraged by the improvement of sand ingredients in this method. The effects of the method were investigated by the field survey an...

Now a days the demand for programmable network is Increasing due to high traffic in network and to increase the performance of network. Programmable network provides the way to network operator to configure the network policies for responding different network events and applications.SDN is new technology to simplify the network management by increasing network programmability. This paper surve...