In recent years, a widespread consensus has emerged about the necessity of establishing bridges between quantitative and qualitative approaches to empirical research in political science. In this article, we discuss the use of the synthetic control method as a way to bridge the quantitative/qualitative divide in comparative politics. The synthetic control method provides a systematic way to cho...

Effectiveness of teaching and learning in any subject at any institution is dependent on the instructional strategies used by the teachers. This is a major factor responsible for the level of performance in any subject by the students. Learning difficulties can be solved up to a great extent by using suitable teaching methods with proper utilization of available computer techniques and tools. D...

To minimize unwanted noise, the exhaust gas of high pressure and high temperature coming out of internal combustion engine passes through silencer. Various types of silencers like absorptive, reactive and resonating, perforated type are widely implemented in actual practice .perforated reactive mufflers have an effective damping capability. This paper deals with comparative structural analysis ...

Immigrants and their residential outcomes are of great interest to urban researchers and policymakers. The literature, however, provides little knowledge about the residential status of immigrants with publicly subsidized housing assistance. In this article, we draw on three streams of literature—assimilation, neighborhood effects, and housing policy—to investigate the residential choices and o...

The normative role of journalism in democracy is well established: Democracy depends on news media to facilitate self-government. But theories of the press point to structural limitations that inhibit the democratic ideal. To examine this contradiction, this article offers a comparative analysis of online news coverage by CNN and BBC of Colin Powell’s speech to the United Nations Security Counc...

This paper deals with the problem of clustering a data−set. In particular, the bisecting divisive partitioning approach is here considered. We focus on two algorithms: the celebrated K−means algorithm, and the recently proposed Principal Direction Divisive Partitioning (PDDP) algorithm. A comparison of the two algorithms is given, under the assumption that the data set is uniformly distributed ...

Second order statistics of quaternion random variables and signals are revisited in order to exploit the complete second order statistical information available. The conditions for Q-proper (second order circular) random processes are presented, and to cater for the non-vanishing pseudocovariance of such processes, the use of ı-E-k-covariances is investigated. Next, the augmented statistics and...

Methods : In this prospective study conducted in a tertiary care public facility in New Delhi, India, PLHIV with chronic meningitis were screened for CM. A comparison of clinical assessment, Cerebrospinal fluid (CSF) analysis [cytology, biochemistry (sugar/protein), and microbiology (India ink staining/Latex Agglutination Test (LAT)], CSF and blood cultures and radiology (MRI brain) in 25 subje...

Predictions of cutting vibrations are necessary for improving the operational efficiency, product quality, and safety in the machining process, since the vibration is the main factor for resulting in machine faults. “Cutting vibration” may be caused by setting incorrect parameters before machining is commenced and may affect the precision of the machined work piece. This raises the need to have...

This paper reports the structural design of a new highperformance robot arm. Design objectives for the new arm include large (1-2 meter) workspace, low weight, 5 kg payload capacity, high sti ness, high structural vibration frequencies, precise joint-level torque control, a total of three degrees-offreedom, and mechanical simplicity. A comparative analysis is reported for four very di erent two...