We propose and demonstrate a simple wavelength independent all-fiber polarization rotator based on purely geometric effects. The device rotates the orientation of an arbitrary input polarization state by arbitrary angle without changing other parameters of the polarization state. The device structure maintains inherent wavelength independence during the tuning process when a non-birefringent si...

We use “selecting” as a general term for selection processes, including filtering, retrieval, routing, and searching. The search for recorded knowledge in a digital library environment is examined in terms of selection at three levels: 1. Selecting which library (repository) to look in; 2. Selecting which document(s) within a library to look at; and 3. Selecting fragments of data (text, numeric...

For application in a software defined radio a CORDIC processor has been developed that can operate both in synchronous and asynchronous mode. Each mode of operation has advantages and drawbacks. Depending on the actual application, an optimal trade-off can be achieved by selecting the mode of operation that fits best with system demands. We believe that for a system developer this additional de...

Background & Objective: To recognize the challenges and obstacles of academic culture in institutionalizing the quality culture in higher education, the Grounded Theory research method helped us to provide a conceptual model in higher education. This model would provide a correct understanding of the challenges and obstacles of academic culture for the beneficiaries. Materials & Methods: The p...

background: cesarean section delivery can lead to much maternal morbidity. different cytokines have been reported to be influenced by the mode of delivery. objective: to investigate the influence of mode of delivery on maternal, placental and cord sera of interferon gamma (ifn-γ), interleukin-4 (il-4) and interleukin-10 (il-10) levels. methods: these three cytokines were measured using elisa in...

We have developed a human melanoma metastasis model in nude mice. In this model, a human variant cell line (451-LU) was obtained that spontaneously metastasized in nude mice. This variant cell line was selected from the lung of a nude mouse after several in vivo passages of human melanoma WM164 cells previously isolated from a melanoma metastasis of a patient. The WIY1164 cells were not compete...

For supersonic cruising, combined power plants can be used, in which a gas turbine engine reaches the cruising mode, and ramjet is used for cruising. Supersonic transoceanic flights are characterized by long segment, decisive terms of required fuel mass. Therefore, selection operation parameters an important task. As rule, when selecting range parameter depends on flight modes. To take into acc...

We have developed a human melanoma metastasis model in nude mice. In this model, a human variant cell line (451-LU) was obtained that spontaneously metastasized in nude mice. This variant cell line was selected from the lung of a nude mouse after several in vivo passages of human melanoma WM164 cells previously isolated from a melanoma metastasis of a patient. The WM164 cells were not competent...

Using extensive computer simulations, the behavior of the structural modes-more precisely, the eigenmodes of a phantom Rouse polymer-are characterized for a polymer in the three-dimensional repton model and are used to study the polymer dynamics at time scales well before the tube renewal. Although these modes are not the eigenmodes for a polymer in the repton model, we show that numerically th...