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Galal, G. H., and R. J. Paul, "A qualitative scenario approach to managing evolving requirements", Requirements Engineering, vol. 4, no. 2: Springer-Verlag London Limited, pp. 92–102, 1999. Abstract
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Galal, G. H., and R. J. Paul, "A qualitative scenario approach to managing evolving requirements", Requirements Engineering, vol. 4, no. 2, pp. 92–102, 1999. Abstract
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Galal, G. H., and J. T. McDonnell, A qualitative view of requirements engineering, , 1998. Abstract
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Galal, G. H., and J. T. McDonnell, A qualitative view of requirements engineering, : Deakin University, 1998. Abstract
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Galal, G. H., and J. T. McDonnell, A qualitative view of requirements engineering, : Deakin University, 1998. Abstract
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Pitman, M. A., and J. A. Maxwell, "Qualitative {Approaches} to {Evaluation}: {Models} and {Methods}", The {Handbook} of {Qualitative} {Research} in {Education}, San Diego, California, Academic Press, pp. 729–770, 1992. Abstract
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Patton, M. Q., Qualitative {Evaluation} and {Research} {Methods}, , 2nd, Newbury Park, CA, Sage Publications, 1990. Abstract

heuristic research, ethnomethodology and symbolic interactionism are approaches derived from phenomenology

Salam, Z. A. -, J.AlSharnoubi, and M.A.Harith, "Qualitativeevaluationofmaternalmilkandcommercialinfant formulas viaLIBS", Talanta, vol. 115, pp. 442-446, 2013. infant_milk_-talanta_2013.pdf
Marzouk, M., and M. Hassouna, "Quality Analysis Using Three-Dimensional Modelling And Image Processing Techniques", Construction Innovation, vol. 19, issue 4, pp. 614-628, 2019.
Attaby, F. A., "Quality and Accreditation the present and prospective,", The First International Conference of the Quality Assurance and Accreditation , Accreditation Center Cairo University, Egypt, 15 April , 2008.
Ali, A. A., M. M. A. M. A. E., and M. A. Azzam, "Quality and properties of soymilk as affected by some technological conditions.", Egypt. J. Appl. Sci., vol. 7, no. (4), pp. 612–629, 1992. Abstract
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Al-Fattah, M.A.A., Mazeed, A.M., Al-Hady, and N.A., "Quality and Quantity of Honeybee Queens as Affected by the Number and Distribution of Queen Cells Within Queen Rearing Colonies", J APIC SCI, 2011. Abstract

The effect of the number of introduced queen cells (15, 24, 48, 66), cell bar level (upper,middle, lower) and queen cell position within a grafted frame (middle, peripheral) on thepercentages of sealed queen cell and queen emergence, the development time, and theweight of newly emerged queens, were observed during the spring and summer seasons.The results indicated the percentage of sealed queen cells was affected by the number of introducedqueen cells, but not by the level bar or position in the rearing frame, during the two seasons. Thepercentage of queen emergence in spring was significantly affected by the three factors, but inthe summer - only by the number of queen cells. Also, both development time and weight ofemerged queens were affected by the three factors. Queen quality, based on queen weight, wasalso investigated. In spring, only heavy queens (190-200 mg) appeared when 15 queen cells wereintroduced, but heavy queens appeared in low percentages when 24 or 48 cells were introduced, andheavy queens completely disappeared with the introduction of 66 queen cells. Queens emerged fromcells on the middle rearing bars and the middle positions of each bar had a high frequency of heavyweight in comparison with those reared on the upper or lower bars and located at the peripheral ofthe bars.

Al-Fattah, M. A. A., A. M. Mazeed, and A. N. Al-Hady, "Quality and quantity of honeybee queens as affected by the number and distribution of queen cells within queen rearing colonies", Journal of Apicultural Science, vol. 2, issue 55: -, 2011. Abstract
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Abdel-Allah, D. M. A., H. H. S. Abdel-Naeem, and A. M. A. El-Sherif, "Quality and safety of locally produced chicken luncheon", Veterinary Medical Journal, vol. 62, issue 2, pp. 37-47, 2016.
A.Shehata, S., K. F. Abdelgawad, and M. Z. E. mogy, "Quality and Shelf-Life of Onion Bulbs Influenced by Biostimulants", International Journal Of Vegetable Science, vol. 23, issue http://dx.doi.org/10.1080/19315260.2017.1298170, pp. 1-10, 2017.
Shehata, S. A., K. F. Abdelgawad, and M. M. El-Mogy, "Quality and Shelf-Life of Onion Bulbs Influenced by Biostimulants", INTERNATIONAL JOURNAL OF VEGETABLE SCIENCE, vol. 33, issue 4, pp. 362–371, 2017.
Abu El Ela, M., and R. Amin, "Quality and Stability of Synthetic Natural Gas Hydrate Produced in a Semi-continous Reactor", The 8th International Conference on Mining, Petroleum & Metallurgical Engineering (MPM’8), Suez Canal University, Faculty of Petroleum & Mining Engineering, Suez, Egypt, 2003.
Tantawy, M. A., A. M. Hassan, M. A. Hegazy, and K. M. Kelani, Quality and Stability Profile Assessment of the Recent Antidiabetic Omarigliptin by Using Different Chromatographic Methods, , vol. 59, issue 8, pp. 762 - 769, 2021/09/01. AbstractWebsite

In a contribution to stability profiling of the recent antidiabetic drug, omarigliptin (OMR), two stability-indicating chromatographic methods were developed and validated. Stability profiling was performed for OMR under different stress conditions as acidic, alkaline, oxidative, photolytic and thermal degradations. Structures elucidation to all formed degradation products were identified using IR and mass spectrometry. Thin Layer Chromatography (TLC) and High-Performance Liquid Chromatography (HPLC) were used. In TLC-densitometric method, aluminum TLC plates precoated with silica gel G.F254 were used as stationary phase along with methanol: ethyl acetate: 33% ammonia (2:8:1,v/v/v) as mobile phase. The obtained chromatograms were scanned at 254 nm over concertation range of 5–70 μg band−1 for OMR. The second chromatographic method was an HPLC one with diode array detection and RP-C18 column with isocratic elution. Mobile phase used was composed of phosphate buffer pH 3.5: acetonitrile (80, 20, v/v), delivered at flow rate of 1.0 mL min−1. Diode array detector was adjusted at 230 nm with linearity range of 15–180 μg mL−1 for OMR. Several factors affecting TLC and HPLC efficiency have been carefully studied. The developed methods were validated according to International Conference on Harmonization guidelines and successfully applied for assessment of OMR in bulk powder and tablets.

Tantawy, M. A., A. M. Hassan, M. A. Hegazy, and K. M. Kelani, "Quality and stability profile assessment of the recent antidiabetic Omarigliptin by using different chromatographic methods", Journal of Chromatographic Science, vol. 59, issue 8: Oxford University Press, pp. 762-769, 2021. Abstract
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and Ibraheem A. Abd Elateef, Mohamed S. Abbas, E. - S. G. L. S. I. E. L. - G. I. M. A. H., "Quality and Yield Traits of Three Sugar Cane Varieties as Affected by Different Levels of Nitrogen and Potassium Fertilizations in Egypt", Research Journal of Pharmaceutical, Biological and Chemical Sciences, vol. 7, issue 2, pp. 1253-1263, 2016. Abstract
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Reda A. El-Khoribi, A. E. - S. N., "Quality Assessment of 12-Lead ECG in Body Sensor Network", International Journal of Sciences, vol. 2, no. 10, pp. 100–105, 2013. Abstract
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