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Lazar V.L.,Vasile Goldis Western University of Arad
Metalurgia International

Generally, an Option Strategy involves the simultaneous purchase and/or sale of different option contracts, also known as an Option Combination. We say generally because there are such a wide variety of option strategies that use multiple legs as their structure, however, even a one legged Long Call Option can be viewed as an option strategy. The main goal of this paper is to present some of the most used option strategies on the market. Source

Azar A.T.,MISR University for Science and Technology | Balas V.E.,Aurel Vlaicu University | Olariu T.,Vasile Goldis Western University of Arad
Studies in Computational Intelligence

This chapter demonstrates the development of a brain computer interface (BCI) decision support system for controlling the movement of a wheelchair for neurologically disabled patients using their Electroencephalography (EEG). The subject was able to imagine his/her hand movements during EEG experiment which made EEG oscillations in the signal that could be classified by BCI. The BCI will translate the patient's thoughts into simple wheelchair commands such as go and stop. EEG signals are recorded using 59 scalp electrodes. The acquired signals are artifacts contaminated. These artifacts were removed using blind source separation (BSS) by independent component analysis (ICA) to get artifact-free EEG signal from which certain features are extracted by applying discrete wavelet transformation (DWT). The extracted features were reduced in dimensionality using principal component analysis (PCA). The reduced features were fed to neural networks classifier yielding classification accuracy greater than 95 %. © 2014 Springer International Publishing Switzerland. Source

Ciacli C.,Vasile Goldis Western University of Arad
Revista medico-chirurgicalǎ̌ a Societǎ̌ţii de Medici ş̧i Naturaliş̧ti din Iaş̧i

To investigate the blood levels of bone remodeling factors (RANKL, OPG and Bone-ALP) in psoriatic arthritis patients. Included in this study were 27 patients with psoriatic arthritis (CASPAR classification criteria) and 20 healthy subjects. The RANKL , OPG and Bone-ALP levels have been quantified by ELISA method. Peripheral blood concentrations were higher in psoriatic arthritis than in the healthy subjects, and a strong negative correlation between RANKL and OPG and between RANKL and Bone-ALP was also found. The increase in OPG and Bone-ALP serum level is strongly related to the increase in RANKL serum level in patients with psoriatic arthritis. The increase in OPG and Bone-ALP serum level induces the production of bone matrix parallel to the bone destruction mediated by RANKL. The follow up of the patients with psoriatic arthritis by early RANKL, OPG and Bone-ALP serum level determinations, and of bone metabolism markers (with specific role in bone remodeling), allows an accurate evaluation of disease activity and, in the future, could be a criterion for the initiation of specific, targeted treatment. Source

Albu S.,University of Medicine and Pharmacy, Cluj-Napoca | Baschir S.,Vasile Goldis Western University of Arad
Auris Nasus Larynx

Objective: It has been suggested that intranasal phototherapy represents an alternative choice in the treatment of seasonal allergic rhinitis (SAR). Our aim was to compare the efficacy of intranasal phototherapy with that of azelastine in patients with SAR. Methods: Seventy seven patients were randomly assigned to the two treatment groups: Group A (phototherapy) and Group B (azelastine). Subjective and objective outcomes were represented by changes in Total Nasal Symptom Score (TNSS), Quality of life scores (Rhinoconjunctivitis Quality of Life Questionnaire - RQLQ), and nasal resistance. Results: The study demonstrated that both azelastine and intranasal phototherapy are able to significantly improve TNSS, including individual nasal symptoms. Nevertheless, phototherapy reduced nasal obstruction better than azelastine (p = 0.038). Both treatments were highly effective in improving RQLQ scores overall and in seven separate domains. Conclusion: Whether intranasal phototheraphy will be a standard treatment of SAR or not should be appraised in future studies and clinical trials. © 2012 Elsevier Ireland Ltd. Source

Benga G.,First Laboratory of Genetic Explorations | Benga G.,Vasile Goldis Western University of Arad | Benga G.,University of Sydney | Benga G.,Romanian Academy of Sciences
European Biophysics Journal

NMR measurements of the diffusional permeability of the human adult red blood cell (RBC) membrane to water (P d) and of the activation energy (E a,d) of the process furnished values of P d ~ 4 × 10-3 cm/s at 25 C and ~6.1 × 10-3 cm/s at 37 C, and E a,d ~ 26 kJ/mol. Comparative NMR measurements for other species showed: (1) monotremes (echidna and platypus), chicken, little penguin, and saltwater crocodile have the lowest P d values; (2) sheep, cow, and elephant have P d values lower than human P d values; (3) cat, horse, alpaca, and camel have P d values close to those of humans; (4) guinea pig, dog, dingo, agile wallaby, red-necked wallaby, Eastern grey kangaroo, and red kangaroo have P d values higher than those of humans; (5) mouse, rat, rabbit, and "small and medium size" marsupials have the highest values of P d (>8.0 × 10-3 cm/s at 25 C and >10.0 × 10-3 cm/s at 37 C). There are peculiarities of E a,d values for the RBCs from different species. The maximum inhibition of diffusional permeability of RBCs induced by incubation with p-chloromercuribenzene sulfonate varied between 0 % (for the chicken and little penguin) to ~50 % (for human, mouse, cat, sheep, horse, camel, and Indian elephant), and ~60-75 % (for rat, guinea pig, rabbit, dog, alpaca, and all marsupials). These results indicate that no water channel proteins (WCPs) or aquaporins are present in the membrane of RBCs from monotremes (echidna, platypus), chicken, little penguin and saltwater crocodile whereas WCPs from the membranes of RBCs from marsupials have peculiarities. © 2012 European Biophysical Societies' Association. Source

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