We analyze intensity and statistical properties of lasers without population inversion in a closed three-level V-type system. We derive the threshold condition and examine the intensity dependence on various system parameters. Unlike other inversionless laser systems that generate amplitude-squeezed light, the intensity fluctuation of the inversionless laser from the three-level V-type system i...

We propose phase-like characteristics in scale-free broadband processes and consider fluctuation synchrony based on the temporal signature of significant amplitude fluctuation. Using wavelet transform, successful captures of similar fluctuation pattern between such broadband processes are demonstrated. The application to the financial data leading to the 2008 financial crisis reveals the transi...

Nature GeNetics aDVaNCE ONLINE PUBLICaTION The panda lineage dates back to the late Miocene and ultimately leads to only one extant species, the giant panda (Ailuropoda melanoleuca). Although global climate change and anthropogenic disturbances are recognized to shape animal population demography2,3 their contribution to panda population dynamics remains largely unknown. We sequenced the whole ...

One of the main distinctions between geomaterials and other engineering materials is the spatial variation of their properties in different directions. This characteristic of geomaterials -so called heterogeneity- is studied herewith. Several spatial distributions are introduced to describe probabilistic variation of geotechnical properties of soils. Among all, the absolute normal distribution ...

We propose a realistic generalization of the Maki-Thompson rumour model by assuming that each spreader ceases to propagate the rumour right after being involved in a random number of stifling experiences. We consider the process with a general initial configuration and establish the asymptotic behaviour (and its fluctuation) of the ultimate proportion of ignorants as the population size grows t...

In this thesis we study a spatial population model based on a class of interacting locally regulated branching processes. The results consist of three parts which are independent of each other. The first part, which is the main part of this thesis as presented in Chapter 2 and 3, is concerned with a three-time-scale analysis of a spatially structured population specified with adaptive fitness l...

We consider branching random walks in d-dimensional integer lattice with time-space i.i.d. offspring distributions. When d ≥ 3 and the fluctuation of the environment is well moderated by the random walk, we prove a central limit theorem for the density of the population, together with upper bounds for the density of the most populated site and the replica overlap. We also discuss the phase tran...

purpose: to introduce a patient with best disease and fluctuation in vision and oct changes. case report: a 26-year-old man presented with decreased va in his left eye due to cnv secondary to best disease. va improved after ivb injection. after 3 years he complained of metamorphopsia in his right eye with a decrease in subretinal deposits which improved spontaneously. the same sequence of event...

Equations of motion for mean firing rate, fluctuation and synchrony have been derived with the use of the augmented moment method (AMM) for the generalized rate-code model including additive and multiplicative noise (H. Hasegawa, Phys. Rev. E 75, 051904 (2007)). We have investigated the response of a neuronal ensemble to three kinds of inputs: mean-driven, fluctuation-driven and synchrony-drive...

statistical studies on palynology contents of late cretaceous to paleocene age gurpi formation in a surface section in zagros basin,sw iran indicate changes in abundance, species diversity, ratio of spiniferites to cyclonephelium (s/c), palynological marine index(pmi) values and organic facies. these palynological variations clearly reflect fluctuations in relative sea-level and depositionalenv...