304,307 research outputs found
Natural hazards and disaster management in Pakistan
The present study explains the various concepts used in disaster management. The concepts explained include: Disaster, Hazard, Vulnerability, Capacity, Risk and Disaster Management Cycle. In addition to the terminologies, the study also seeks to explain various types of disasters. It also gives a detail of various disasters occurred in Pakistan as well their management and mitigation strategies. The paper also discusses disaster management policy at national level as well as disaster management and national plans in Pakistan
Open Quantum Systems in Noninertial Frames
We study the effects of decoherence on the entanglement generated by Unruh
effect in noninertial frames by using bit flip, phase damping and depolarizing
channels. It is shown that decoherence strongly influences the initial state
entanglement. The entanglement sudden death can happens irrespective of the
acceleration of the noninertial frame under the action of phase flip and phase
damping channels. It is investigated that an early sudden death happens for
large acceleration under the depolarizing environment. Moreover, the
entanglement increases for a highly decohered phase flip channel.Comment: 11 pages, 6 eps figure
Noisy Relativistic Quantum Games in Noninertial Frames
The influence of noise and of Unruh effect on quantum Prisoners' dilemma is
investigated both for entangled and unentangled initial states. The noise is
incorporated through amplitude damping channel. For unentangled initial state,
the decoherence compensates for the adverse effect of acceleration of the frame
and the effect of acceleration becomes irrelevant provided the game is fully
decohered. It is shown that the inertial player always out scores the
noninertial player by choosing defection. For maximally entangled initially
state, we show that for fully decohered case every strategy profile results in
either of the two possible equilibrium outcomes. Two of the four possible
strategy profiles become Pareto Optimal and Nash equilibrium and no dilemma is
leftover. It is shown that other equilibrium points emerge for different region
of values of decoherence parameter that are either Pareto optimal or Pareto
inefficient in the quantum strategic spaces. It is shown that the Eisert et al
miracle move is a special move that leads always to distinguishable results
compare to other moves. We show that the dilemma like situation is resolved in
favor of one player or the other.Comment: 14 pages and 6 figure
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Transient acantholytic dermatosis in a patient with prostate cancer
Transient acantholytic dermatosis (TAD) is a relatively common entity that has been also noted to occur in patients with cancer. Herein, we describe a case of transient acantholytic dermatosis occurring in a patient with a history of prostate cancer status post radiation, now being treated with combination therapy with pembrolizumab and carboplatin-pemetrexed for advanced lung adenocarcinoma. Our case emphasizes the importance of being cognizant of TAD and its associations, particularly in cancer patients
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