Found 43,215 document(s)
Page 2283 of 2881
-
We conducted a prospective pilot screening study in three settings in Luxembourg where routine urine testing is carried out independently for other purposes with a short sexual behaviour questionnaire to estimate prevale...
-
Potentiometry with ion-selective electrodes (ISEs) provides a simple and cheap approach for estimating ionic activities. However, a well-known shortcoming of ISEs regards their lack of selectivity. Recent works have sugg...
-
An interpretation of time-frequency (TF) distribution concentration based on discretization of Cauchy's integral formula, is provided. In order to increase the accuracy of instantaneous frequency (IF) estimation, two sol...
-
Chirp-rate, as a second derivative of signal phase, is an important feature of nonstationary signals in numerous applications such as radar, sonar, and communications. In this paper, an adaptive algorithm for the chirp-r...
-
The estimation of the impulse response (IR) of a propagation channel may be of great interest for a large number of underwater applications: underwater communications, sonar detection and localization, marine mammal moni...
-
This paper is an attempt to sketch a historical, cultural and social background of recent educational developments in Qatar, briefly review the traditions of western liberal arts education with its goals and teaching and...
-
Over the past few years, automotive engineering has been characterized by rapid growth in active systems. Many research works have therefore been devoted to the control of such active subsystems, as braking, steering or ...
-
In the last decade, there has been a tendency of shifting content distribution towards peer-to-peer (P2P) technology. The reason behind this is the self-scalability of P2P systems provided by the principles of communal c...
-
This experimental study investigates the retention of bacteria by porous membranes. The transfer of bacteria larger than the nominal pore size of microfiltration track-etched membranes has been studied for several kinds ...
-
The free surface flow in a circular cylinder driven by a rotating bottom disk is studied experimentally using particle image velocimetry. Results are compared with computational results assuming a stress-free surface. A ...
-
As in other educational programs, scholarship programs offer mentoring to the recipients. In order to cultivate the maximum benefit, each recipient needs to be guided and appropriately advised, first to achieve the goals...
-
This study is part of a larger study that uses mixed methods (qualitative and quantitative methods) to investigate preservice teachers' knowledge and understanding of multiculturalism and to prepare preservice teachers t...
-
We have observed the photoactivatable fluorescent protein IrisFP in a transient dark state with near-atomic resolution. This dark state is assigned to a radical species that either relaxes to the ground state or evolves ...