In pico-cellular wireless systems such as Bluetooth, a large number of inter-communicating mobile devices can be present in a small area. Piconets are formed in an adhoc manner and may not be connected to the wired network. In this paper, we propose and study policies for design of piconets and inter-piconet communication (in the absence of connectivity to the wired network). We compare the thr...

The water solution of an intriguing luminescent 'Inorganic Co-crystal' of Cu(II) monomeric and dimeric units shows extremely selective sensing ability towards inorganic arsenic(III) in water medium in the pico-molar concentration range even in the presence of other cations.

We present a new technique, polarization-modulation dual-focus fluorescence correlation spectroscopy (pmFCS), based on the recently intro-duced dual-focus fluorescence correlation spectroscopy (2fFCS) to measure the absolute value of diffusion coefficients of fluorescent molecules at pico- to nanomolar concentrations. Analogous to 2fFCS, the new technique is robust against optical saturation in...

Presently, two species of Chiropotes are recognized: Chiropotes albinasus and C. satanas. The latter includes three subspecies, namely C. s. satanas, C. s. chiropotes and C. s. utahicki (see Hershkovitz, 1985; Rylands et al., 2000; Groves, 2001). C. albinasus is found to the south of the Rio Amazonas between the Rios Xingu and Madeira, and C. satanas is found to the east of the Rio Xingu, south...

We show that femtosecond laser pulse excitation of the orthoferrite ErFeO_{3} triggers pico- and subpicosecond dynamics of magnetic and electric dipoles associated with the low energy electronic states of the Er^{3+} ions. These dynamics are readily revealed by using polarization sensitive terahertz emission spectroscopy. It is shown that by changing the polarization of the femtosecond laser pu...

Size is a crucial biological trait that determines the metabolism and energy fluxes in cells through resources requirement and acquisition, as well as the “susceptibility” of cells to environmental changes. The aim of our contribution is to do a synthesis of the relations between size – pico vs nano+microphytoplankton – and environmental forcings that have been investigated in different trophic...

This paper tests whether being convicted of a crime a¤ects marriage market outcomes. While it is relatively well documented that crime hurts in terms of reduced future income, there has been little systematic analysis on the association between crime and marriage market outcomes. This paper exploits a detailed Danish register-based data set to …ll this gap in the literature. The main …ndings ar...

the term degradation is used to specify the status of the environment. it is often associated with ‘improper use’. ‘use’ also implies environmental aspects other than physical ones and implies that the more intensive the use, the more susceptible the environment is to degradation, particularly if proper care for the environment is lacking. the question is, and has always been, how to map someth...