The effect of triazine- and urea-type herbicides on photosynthetic apparatus in cucumber leaves

About a half of the herbicides used at present in agnculture inhibit the light reactions in photosynthesis. Triazines and phenylureas shut down the photosynthetic process in susceptible plants by binding to specific sites within the plants photosystem II (PS II) complex. Both of them bind at the QB site on the Dl protein of PS II, and prevent the transport of electrons between the primary electron acceptor Q and the plastoquinone (PQ). Herbicides can be highly toxic to human and animal health (triazines are possible human carcinogens). Their indiscriminate use has serious environmental implications, for example pollution of soil and water. We compare two heibicides to investigate the one of lowest environmental toxicity but of high toxicity to weeds

Clinical Evaluation of the Oxysat 2 Monitoring System

A clinical study was undertaken to determine the accuracy of the Oxysat 2 Monitoring System. A series of 17 patients undergoing cardiopulmonary bypass were studied to compare venous saturation and hematocrit results with standard laboratory values. Samples were analyzed using the Auto Crit Centrifuge and the Corning 2500 Co-Oximeter. Upon analysis of the data, graphs plotting correlation of hematocrit values demonstrated an r2 value of 0.67595 between Oxysat 2 and the Corning 2500. Graphs plotting correlation of percent hematocrit using the Auto Centrifuge and Corning 2500 show an r2 value of 0.94119. Further analysis of graphs plotting correlation of venous saturation using the Oxysat 2 and the Corning 2500 indicated an r2 value of 0.86597. This study indicated a statistically good correlation of saturation values using the Oxysat 2, while only a statistically moderate correlation was achieved using hematocrit results

Entanglement Detection with Non-Ideal Ferromagnetic Detectors

Entangled states are essential in basics quantum communication protocols and quantum cryptography. Ferromagnetic contacts can work as a spin detector, giving possibility of converting information about electron spin to the electric charge, and therefore, detection of entangled states with the electric current measurements is possible. Method of confirming entanglement with non-ideal detectors is presented, the impact of decoherence and noise on states and quality of entanglement is discussed. Entanglement witness (EW) operator method is compared with the CHSH inequalities approach. Required spin polarization for the EW is lower than for the CHSH inequalities. System with asymmetric spin polarizations of detectors was analyzed, including the CHSH inequalities and the EW method