Fast analytical methodologies are mandatory for large scale metabolic profiling. Here, we present a thorough evaluation of different column chemistries in combination with different mobile phases for fast LC-MS urinary metabolic profiling. Three porous HILIC materials were investigated, next to core-shell C18-, XB-C18- and PFP-RPLC material. The performance of the selected column chemistries wa...

The (PD) peak day of cervical mucus is an important biologic marker for the self-determination of the optimal time of fertility in a woman's menstrual cycle. The purpose of this article is to provide evidence (literature and empiric) for the accuracy of the PD of cervical mucus as a biologic marker of peak fertility and the estimated day of ovulation. An analysis of data from four published stu...

expert systems can help to build banks customers' credit scoring models. here, selection of key features of the credit scoring is important. also, it is possible to express the features values as fuzzy. the problem is how to improve features selection by genetic algorithm, in way that these features can be employed as input in fuzzy expert system. this paper presents a hybrid credit scorin...

The paper illustrates a method for the design of suitable controllers of chaotic systems characterized by complex peak-to-peak dynamics, namely by a recursive relationship between consecutive peaks (relative maxima) of a scalar output variable. For such systems, a reduced model can be defined which, in general, is a hybrid model composed of a one-dimensional map and a finite-state automaton. Th...

background: considering the importance of using more appropriate imaging technique for accurate diagnosis of pulmonary thromboembolism (pte) with less side eff ects, we aimed to evaluate the quality of pulmonary 64-multidetector computed tomographic (mdct) angiography in pregnant and postpartum women with suspected pte in isfahan. materials and methods:in this descriptive study, radiological fi...

Possible optical setups for measurement of the peak-to-peak value of an ultrasonic transducer are described in this work. The Michelson interferometer with the calibrated nanopositioner in reference path and laser Doppler vibrometer were used for the basic measurement of vibration displacement. Langevin type of ultrasonic transducer is used for the purposes of Electro-Ultrasonic Nonlinear Spect...

background and purpose: severity of illness scoring systems is used for the classification of patients to receive medical services, predict the risk of mortality, determine hospital bed occupancy, and assess treatment progress. in iran, these scoring systems are not frequently used due to the lack of knowledge of medical staff. this study aimed to evaluate the effect of education on the knowled...