Spektralno-efikasna zelena bežična komunikacija pomoću kognitivnog UWB signalnog modela

This paper focuses on spectral lines suppression for non-coherent impulse-radio ultra-wideband (IR-UWB) signals in the presence of pulse attenuation and timing jitter. Particular attention is devoted to severely unbalanced (i.e. non-uniform distributed) data sources where a unified spectral analysis is considered for both uncorrelated and correlated M-ary biorthogonal data-stream scenarios. Indeed, the specific novelty insights of this paper are as follows: i) Proposal of a new spectral-efficient signal model as a modified version of transmitted-reference (TR) approach, where each transmitted symbol is represented by a preamble Data-based Statistical Reference (DSR) followed by a set of transmitted data pulses and within this context, the preamble signal is designed to eliminate spectral lines via an adaptive monitoring of data-stream statistics as the optimal spectral policy; ii) Performance analysis in order to derive optimal signal parameters; iii) Evaluation of the system capabilities over different predefined operational modes.Ovaj rad se fokusira na prigušenje spektralnih linija kod ne-koherentnih radio-impulsnih ultra-širokopojasnih (IR-UWB) signala prilikom slabljenja pulsa i vremenskog podrhtavanja. Posebna pažnja je pridana značajno neuravnoteženim (npr. ne-unifornmno distribuiranim) izvorima podataka gdje je jedinstvena spektralna analiza razmatrana za nekorelirane i korelirane M-arne biortogonalne scenarije prijenosa podataka. Novine predstavljene u ovom radu su: i) Novi spektralno-efikasni signalni model koji je modificirana verzija pristupa prijenosom-reference (TR), gdje se svaki preneseni simbol prikazuje pomoću preambule definirane statistikom reference podataka (DSR) koju slijedi skup prenesenih podatkovnih pulseva, te je u tom kontekstu preambula signala dizajnirana kako bi se eliminirale spektralne linije pomoću optimalnog spektralnog kriterija definiranog adaptivnim praćenjem statistike poslanih podataka; ii) Analiza performansi kako bi se dobili optimalni parametri signala i iii) Evaluacija sposobnosti sustava prilikom rada u različitim predefiniranim stanjima

The most important medicinal plants affecting the brain and nerves: An overview on Iranian ethnobotanical sources

Medicinal plants have been used traditionally to treat neurological disorders. The aim of this study was to report the medicinal plants used to treat these disorders in ethnobotanical resources of Iran. Traditional remedial information of this study was obtained by searching common key words such as neurological disorders, neurodegenerative diseases, mental illness, and medicinal plants in scientific databases including ISI Web of Science, PubMed, Scopus, Islamic World Science Citation Database (ISC), Magiran and Scientific Information Database (SID) of Iran. Several medicinal plants up to 71 species are used as effective remedies on neurological disorders in different cities, regions and provinces of Iran such as Arasbaran, Jandagh, Khuzestan, Sirjan, Sistan, north of Iran, Mobarakeh, Marivan, Kashan, West Azarbaijan, Ilam. Medicinal plants show their therapeutic effects due to the presence of antioxidants, flavonoids, flavonoids, tannins, anthocyanins activities and so on

Identification of medicinal plants effective on sinusitis native to Shiraz province in Iran

Sinusitis is one of the most infectious diseases that affect holes around the nose such as frontal ethmoid sinuses, maxillary and sphenoid. Symptoms usually include nasal congestion and obstruction, feeling of pressure or fullness in the face, anterior or posterior nasal causing discharge, headaches, fever, swelling and erythema in forehead or cheek and cough. The symptoms might be edema and mucosal congestion, nasal drainage, posterior nasal discharge, nasal septum deviation and polyps. The medicinal plants identified for instance are Amygdalus scoparia Spach, Echinophora platyloba DC., Haplophyllum perforatum L, Lavandula stoechas L, Borago officinalis, Matricaria recutita, Descurainia Sophia (L.) Schr and Haplophyllum perforatum L to treat sinusitis in Shiraz. Many of these plants have antioxidant activity and contain bioactive compounds such as flavonoids, flavonoids, polyphenols, anthocyanins, tannins and many other pharmaceutical bioactive ingredients that have effects on sinusitis. This paper aims to review the recently published papers in this topic

Criticizing and Evaluating the Translation of Mohammad Dashti from Nahj al-Balagha Based on the Model of Garcias (Case Study: Translation of the First Khotbeh and Hekamts One to Twenty)

Nahj al-Balaghah is one of the most important and authentic religious sources that has come to the fore of knowledge and bounty since its creation. Several translators have been devoted to explaining this valuable masterpiece by Amir al-Mu'minin (AS). But the question is, how far have these translations been able to introduce and transmit the miracle, power, and acceptance of the Amir's words to the Persian language community in the best way? The present study was conducted by descriptive-analytical method with the aim of evaluating the quality of translation from Nahj al-Balaghah by Mohammad Dashti. Among the various patterns of translation quality assessment, the Garcias model, which is relatively more comprehensive than the other proposed models, is considered as a research framework. This model includes four levels of lexical semantics, syntactic, cognitive, discursive-functional, and cognitive (practical) style. Each of these levels has subcategories and specific components whose translations are evaluated based on them. In this research, the translation of the first Khotbeh and the Hekamts one to twenty from the so-called translator are selected and evaluated for qualitative evaluation. After determining the abundance of each subgroup in the quadric levels according to the Garcias model, the results are plotted. The result of the evaluation based on the positive, negative and neutral techniques indicates that the translation of the plain has a criterion of acceptability and is of high quality

Non-thermal CO2 Laser Therapy (NTCLT): A Novel Photobiomodulative Approach for Immediate Pain Relief of Patchy Oral Mucositis Due to Chemotherapy of Solid Tumors: NTCLT/ pain relief of COM

Introduction: Chemotherapy-induced oral mucositis (COM) is a prominent complication of chemotherapy (CT). Non-thermal CO2 laser therapy (NTCLT) has been demonstrated as an innovative and safe photobiomodulative approach in some kinds of painful oral lesions. The purpose of this study was to evaluate the palliative effects of one session of NTCLT on COM lesions.Methods: Patients with painful COM (WHO grade:≥2) were included in this before-after clinical trial based on the eligibility criteria. The oral lesions were irradiated with a CO2 laser (power: 1 W, scanning the lesions with the rapid circular motion of the defocused handpiece) through a thick layer (3-4 mm) of a transparent gel containing a high water content. The severity of pain in the lesions was self-assessed using a 0-to-10 visual analog scale (VAS) for 7 consecutive days. The evaluating physician visited the patients on the 3rd and 7th days in search of any kind of complications.Results: Seventeen adult patients with 35 patches of OM due to chemotherapy of solid tumors completed the trial. Immediately after NTCLT, the mean for non-contact VAS pain scores of the lesions significantly declined from 4.91±2.356 to 0.29±0.622 (P<0.001) and the mean for contact VAS pain scores from 7.77±1.57 to 1.31±1.18 (P<0.001). The mean VAS pain scores of the lesions showed statistically significant differences between the follow-up periods compared to the baseline (P<0.001). The process was completely pain-free and required no anesthesia. After NTCLT, no kind of thermal adverse effects such as irritation, destruction, aggravation, and even erythema were observed.Conclusion: Based on the results of this before-after clinical trial, NTCLT has the potential to be considered a non-invasive and safe palliative option for the pain management of patchy OM due to chemotherapy of solid tumor

Prevalence rate of aspirin resistance in cardiovascular disease patients: A systematic review and meta-analysis

Background: Cardiovascular disease (CVD) is the first cause of mortality worldwide, with all the healthcare systems facing this very challenging issue. Aspirin continues to be the major gold-standard treatment worldwide in the prevention of thrombotic disease in patients with CVD, even though not all individuals respond to antiplatelet therapy in a similar way, being resistant to aspirin. The aim of this study was to determine the prevalence of laboratory defined aspirin resistance in CVD patients worldwide. Methods: Relevant articles were identified through searching EMBASE, PubMed/ MEDLINE, ISI /Web of Science, Scopus, and the Cochrane Library, from January 2000 to February 2018. The methodological quality of the included studies was critically appraised using the Newcastle-Ottawa scale. The pooled prevalence of laboratory defined aspirin resistance was computed using the Der Simonian-Laird random-effect model. Results: We included 65 studies, with a total of 10,729 patients. The overall prevalence of laboratory defined aspirin resistance in CVD patients was 24.7 (95%CI 21.4-28.4. Women were found to be at increased risk of laboratory defined aspirin resistance compared to men, with an odds ratio of 1.16 95%CI 0.87-1.54.  Conclusion: Doctors and healthcare providers should pay special attention to aspirin resistance since lack of awareness could cause problems and increase mortality in these patients, if not properly treated with higher aspirin doses