OBJECTIVES To assess the knowledge and behaviour of researchers regarding criteria for authorship, and the practices of ghost and gift authorship. DESIGN Semidirective interviews of senior clinical researchers. SETTING University hospital. PARTICIPANTS Thirty-nine main investigators of clinical research programmes. MAIN MEASUREMENTS Awareness and use of International Committee of Medica...

  This paper proposes two relax and fix heuristics for the simultaneous lot sizing and sequencing problem in permutation flow shops involving sequence-dependent setups and capacity constraints. To evaluate the effectiveness of mentioned heuristics, two lower bounds are developed and compared against the optimal solution. The results of heuristics are compared with the selected lower bound .

• Our classifiers perform better when the flows are generated using shorter timeout values, which contradicts the common assumption of using 600 ms as timeout duration. • Future work: we plan to expand our work to other applications and types of encrypted traffic, and to further study the application of time-based features to characterize encrypted traffic. FEATURE DESCRIPTION dura&on Dura&on o...

An integrated distributed learning environment (IDLE) is proposed based on two designing frameworks: learning activities and instructional strategies. The proposed IDLE consists of four components: (1) online courseware, (2) virtual classroom, (3) instructional management, and (4) tools. In addition to system components, the installation of two types of instructional personnel is also suggested...

This paper presents an innovative DVS technique to reduce the energy dissipation. Our objective is to minimize the transitions between power modes by maximizing the idle periods of functional units with instruction scheduling. Our work first analyzes the control flow graph of the application, which contains many regions. Second, we collect the power information and build its power model for eac...

The MAC performance of IEEE 802.11 DCF and the IEEE 802.11e EDCA is analyzed in nonsaturated condition which means sometimes the device does not have a packet for transmission. In this paper we assume that there is no generation of flow while the previous flow is in service and the number of packets in flow is geometrically distributed. In the non-saturated condition, the first packet arriving ...

awareness of the level of river flow and its fluctuations at different times is one of the significant factor to achieve sustainable development for water resource issues. therefore, the present study two hybrid models, wavelet- adaptive neural fuzzy interference system (wanfis) and wavelet- artificial neural network (wann) are used for flow prediction of gamasyab river (nahavand, hamedan, iran...