We use the ROSAT North Ecliptic Pole (NEP) survey to construct a small, but purely X-ray flux-limited sample of cataclysmic variable stars (CVs). The sample includes only four systems, two of which (RX J1715.6+6856 and RX J1831.7+6511) are new discoveries. We present time-resolved spectroscopy of the new CVs and measure orbital periods of 1.64 ± 0.02 and 4.01 ± 0.03 h for RX J1715.6+6856 and RX...

Communication networks shared by selfish users are considered and modeled as noncooperative repeated games. Each user is interested only in optimizing its own performance by controlling the routing of its load. We investigate the existence of a Nash equilibrium point (NEP) that achieves the system-wide optimum cost. The existence of a subgame-perfect NEP that not only achieves the system-wide o...

Our global society is becoming increasingly aware of the way the climate is changing worldwide and the consequences that will result from those changes. An individual's level of concern for the environment will likely affect how willing they are to engage in and support behaviors that aim to preserve the natural world. This study aimed to determine how local environmental literacy, degree progr...

objective: noise pollution is one of the most important situations requiring a solution by the contemporary world. the national institute for occupational safety and health has identified noise as one of the ten leading causes of work-related diseases and injuries. dentists and dental auxiliaries are exposed to different noise levels while working in dental offices or laboratories. the purpose ...

This paper examines Hispanic voting behavior in the 2004 Presidential election. Our research makes a significant contribution to the literature on Hispanic politics, as this is the first study to apply theories of issue and economic voting to a nationwide sample of Hispanic voters. We demonstrate that, similar to Anglos, issues and ideology were highly influential in the vote choice of Hispanic...

BACKGROUND The objective of the research work is to assess day time traffic noise level at curbside open-air microenvironment of Kolkata city, India under heterogeneous environmental conditions. RESULTS Prevailing traffic noise level in terms of A-weighted equivalent noise level (Leq) at the microenvironment was in excess of 12.6 ± 2.1 dB(A) from the day time standard of 65 dB(A) for commerci...

This paper proposes a Dempster -Shafer theory based combining scheme for single-input single-output (SISO) systems with hybrid automatic retransmission request (HARQ), referred to as DSC, in which two methods for soft information calculations are developed for equiprobable (EP) and non-equiprobable (NEP) sources, respectively. One is based on the distance from the received signal to the decisio...

Noise equivalent power and time constant of a submillimeter wave hotelectron bolometer (HEB) made from monolayer graphene are analyzed using the lowest electron-phonon thermal conductance data reported to date. Frequency-domain multiplexed JohnsonNoiseThermometry (JNT) is used for the detector readout. Planar microantennas or waveguides can provide efficient coupling of the graphene microdevice...