51 research outputs found
An Expert System For Diagnosing Eye Diseases Using Clips
This work presents the design of an expert system that aims to provide the patient with background for
suitable diagnosis of some of the eye diseases. The eye has always been viewed as a tunnel to the inner
workings of the body. There are many disease states that may produce symptoms from the eye. CLIPS
language is used as a tool for designing our expert system. An initial evaluation of the expert system was
carried out and a positive feedback was received from the users
Isolation, synthesis and optimization of cyclopropanation process of 4-allyl-2-methoxyphenol
The synthesis of 4-((2,2-dichlorocyclopropyl)methyl)-2-methoxyphenol 2 have been accomplished by using cyclopropanation process and Reponse Surface Methodology [1,2]. This methodology was used to determine the optimal conditions for the cyclopropanation reaction of eugenol 1. The reaction time (X1) and the ratio of the reaction mixture’s solvent (X2) were the two investigated factors. The statistical analysis of this study indicates that both of these factors had significant effects on the cyclopropanation yield. The central composite design showed that polynomial regression models were in good agreement with the experimental results of the coefficient determination (0.95) of product 2 yield. The optimal conditions were 17.44 and 5.78 hours. In such condition, the predicted yield of the product 2 was 43.96%. Keywords: Eugenol; 4-((2,2-dichlorocyclopropyl)methyl)-2-methoxyphenol; Central composite design; Optimization experiment
Formulation and characterization of resiquimod microsponges loaded gel
The aim of this study was to incorporate microponges loaded with resiquimod in gel dosage form. Microsponges were prepared by emulsion solvent evaporation method using dichloromethane (DCM), ethylacetate (EA), and chloroform in dispersed phase were incorporated into different gels. 0.5% w/w Carbopol® 934 (polyacrylic acid) powder was dispersed into deionized water under constant stirring with a glass rod. 0.2% and 0.02% w/w of methylparaben and propylparaben were used as preservative in the gel. The dispersion was neutralized using 10% sodium hydroxide (2% w/w). Topical microsponges gel formulations were prepared by incorporation of microsponges into the gel. A 0.03% w/w of resiquimod loaded microsponges was incorporated into the gel. Control gels which contained resiquimod only were prepared under the same conditions. Microsponges prepared by 2.5 mL of DCM, 1 mL of chloroform or 5 mL of EA in the dispersion phase were selected and coded as F1, F2 and F3. To study the compatibility of gel excipients along with microsponges, Attenuated Total Reflectance – Fourier Transform Infrared (ATR-FTIR) spectroscopy and FESEM microscopy were used. The ATR-FTIR spectrums of different formulations (F1, F2, and F3) are identical. F4 spectrum which contained empty microsponges loaded gel had no additional or missed peaks when compared against spectrums of other formulations. The integrity and surface morphology remained similar when compared to original microsponges observed under FESEM microscopy. Therefore, it can be concluded that there was no chemical interaction between resiquimod loaded microsponges and gel excipients as shown in ATR-FTIR spectrum and FESEM microscope
Updating the NCTUns-6.0 tool to simulate parallel optical burst switching of all-optical ultra-dense WDM systems
Optical burst switching (OBS) is proposed as suitable switching architectures for directly transporting traffic over a bufferless wavelength division multiplexing (WDM) networks. Parallel optical burst switching (POBS) is a variant of the OBS model that takes this concept further by transmitting data bursts wavelength and time dimensions. However, there is a lack of simulator that simulates POBS networks. This paper presents an update to the conventional OBS model in the NCTUns-6.0 simulator (NCTUns-POBS). The NCTUns-POBS tool is capable of simulating POBS networks for ultra-denseWDM. It analyzes the features of POBS networks, enables to adjust the parameters of POBS networks and enhances their switching technology. To test and validate the performance of the tool, the proposed random wavelength assignment technique (RWAT) is compared with the existing sequential wavelength assignment technique (SWAT) of the POBS model and the conventional OBS model. The results of the simulation show that, the NCTUns-POBS successfully simulates the POBS networks in which the proposed RWAT enables the POBS to yield higher throughput compared to the existing SWAT and the OBS conventional techniqu
Evaluation of susceptibility of an olive progeny (Picholine x Meski) to olive leaf spot disease caused by Fusicladium oleagineum
Romanticism in Context: Shelley’s and Keats’s Verse and Prose: Keats’s Letters and Ode to a Nightingale, Shelley’s Defense of Poetry and Skylark
This paper argues it is probably unavoidable perceiving the works of Shelley and Keats without putting these works in the context of the age and in the context of Romanticism. On the whole the selected pieces of prose and verse of the poets represent their postulations in an era which witnessed great revolutions, political and industrial bringing about new trends in literature and in society. From the personal perspective of the two poets, the birds in the poems represent ideals reflecting the treatment of imagination, nature and ideology of their time and their individual experience, knowledge of the world and of prosody. Thus the treatment of this topic as such opens an old and new interpretation of the poets’ work since the topics in their poetry can apply to their age and ours
Formulation and characterization of resiquimod microsponges loaded gel
The aim of this study was to incorporate microponges loaded with resiquimod in gel dosage form. Microsponges were prepared by emulsion solvent evaporation method using dichloromethane (DCM), ethylacetate (EA), and chloroform in dispersed phase were incorporated into different gels. 0.5% w/w Carbopol® 934 (polyacrylic acid) powder was dispersed into deionized water under constant stirring with a glass rod. 0.2% and 0.02% w/w of methylparaben and propylparaben were used as preservative in the gel. The dispersion was neutralized using 10% sodium hydroxide (2% w/w). Topical microsponges gel formulations were prepared by incorporation of microsponges into the gel. A 0.03% w/w of resiquimod loaded microsponges was incorporated into the gel. Control gels which contained resiquimod only were prepared under the same conditions. Microsponges prepared by 2.5 mL of DCM, 1 mL of chloroform or 5 mL of EA in the dispersion phase were selected and coded as F1, F2 and F3. To study the compatibility of gel excipients along with microsponges, Attenuated Total Reflectance – Fourier Transform Infrared (ATR-FTIR) spectroscopy and FESEM microscopy were used. The ATR-FTIR spectrums of different formulations (F1, F2, and F3) are identical. F4 spectrum which contained empty microsponges loaded gel had no additional or missed peaks when compared against spectrums of other formulations. The integrity and surface morphology remained similar when compared to original microsponges observed under FESEM microscopy. Therefore, it can be concluded that there was no chemical interaction between resiquimod loaded microsponges and gel excipients as shown in ATR-FTIR spectrum and FESEM microscope
Formulation and characterization of resiquimod microsponges loaded gel
The aim of this study was to incorporate microponges loaded with resiquimod in gel dosage form. Microsponges were prepared by emulsion solvent evaporation method using dichloromethane (DCM), ethylacetate (EA), and chloroform in dispersed phase were incorporated into different gels. 0.5% w/w Carbopol® 934 (polyacrylic acid) powder was dispersed into deionized water under constant stirring with a glass rod. 0.2% and 0.02% w/w of methylparaben and propylparaben were used as preservative in the gel. The dispersion was neutralized using 10% sodium hydroxide (2% w/w). Topical microsponges gel formulations were prepared by incorporation of microsponges into the gel. A 0.03% w/w of resiquimod loaded microsponges was incorporated into the gel. Control gels which contained resiquimod only were prepared under the same conditions. Microsponges prepared by 2.5 mL of DCM, 1 mL of chloroform or 5 mL of EA in the dispersion phase were selected and coded as F1, F2 and F3. To study the compatibility of gel excipients along with microsponges, Attenuated Total Reflectance – Fourier Transform Infrared (ATR-FTIR) spectroscopy and FESEM microscopy were used. The ATR-FTIR spectrums of different formulations (F1, F2, and F3) are identical. F4 spectrum which contained empty microsponges loaded gel had no additional or missed peaks when compared against spectrums of other formulations. The integrity and surface morphology remained similar when compared to original microsponges observed under FESEM microscopy. Therefore, it can be concluded that there was no chemical interaction between resiquimod loaded microsponges and gel excipients as shown in ATR-FTIR spectrum and FESEM microscope
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