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Baccanari, D., A. Phillips, S. Smith, D. Sinski, and J. Burchall, "Purification and properties of Escherichia coli dihydrofolate reductase.", Biochemistry, vol. 14, issue 24, pp. 5267-73, 1975 Dec 2. Abstract

Dihydrofolate reductase has been purified 40-fold to apparent homogeneity from a trimethoprim-resistant strain of Escherichia coli (RT 500) using a procedure that includes methotrexate affinity column chromatography. Determinations of the molecular weight of the enzyme based on its amino acid composition, sedimentation velocity, and sodium dodecyl sulfate gel electrophoresis gave values of 17680, 17470 and 18300, respectively. An aggregated form of the enzyme with a low specific activity can be separated from the monomer by gel filtration; treatment of the aggregate with mercaptoethanol or dithiothreitol results in an increase in enzymic activity and a regeneration of the monomer. Also, multiple molecular forms of the monomer have been detected by polyacrylamide gel electrophoresis. The unresolved enzyme exhibits two pH optima (pH 4.5 and pH 7.0) with dihydrofolate as a substrate. Highest activities are observed in buffers containing large organic cations. In 100 mM imidazolium chloride (pH 7), the specific activity is 47 mumol of dihydrofolate reduced per min per mg at 30 degrees. Folic acid also serves as a substrate with a single pH optimum of pH 4.5. At this pH the Km for folate is 16 muM, and the Vmax is 1/1000 of the rate observed with dihydrofolate as the substrate. Monovalent cations (Na+, K+, Rb+, and Cs+) inhibit dihydrofolate reductase; at a given ionic strength the degree of inhibition is a function of the ionic radius of the cation. Divalent cations are more potent inhibitors; the I50 of BaCl2 is 250 muM, as compared to 125 mM for KCl. Anions neither inhibit nor activate the enzyme.

Bacco, G., N. Bianchi, and M. Hanafy, "A Nonlinear Analytical Model for the Rapid Prediction of the Torque of Synchronous Reluctance Machines", IEEE Transaction On Energy Conversion, vol. 33, issue 3, pp. 1539-1546, 2018.
Bachagha, N., A. Elnashar, M. Tababi, F. Souei, and W. Xu, "The Use of Machine Learning and Satellite Imagery to Detect Roman Fortified Sites: The Case Study of Blad Talh (Tunisia Section)", Applied Sciences, vol. 13, issue 4, pp. 2613, 2023. AbstractWebsite

This study focuses on an ad hoc machine-learning method for locating archaeological sites in arid environments. Pleiades (P1B) were uploaded to the cloud asset of the Google Earth Engine (GEE) environment because they are not yet available on the platform. The average of the SAR data was combined with the P1B image in the selected study area called Blad Talh at Gafsa, which is located in southern Tunisia. This pre-desert region has long been investigated as an important area of Roman civilization (106 BCE). The results show an accurate probability map with an overall accuracy and Kappa coefficient of 0.93 and 0.91, respectively, when validated with field survey data. The results of this research demonstrate, from the perspective of archaeologists, the capability of satellite data and machine learning to discover buried archaeological sites. This work shows that the area presents more archaeological sites, which has major implications for understanding the archaeological significance of the region. Remote sensing combined with machine learning algorithms provides an effective way to augment archaeological surveys and detect new cultural deposits.

Bacheer, S. M., "Egyptian Labor in the UAE", The UAE-Egyptian Relations: Challenges and Future Prospects: Al Khaleej Publishing, Sharjah, UAE, 2018. Abstract
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Bachman, S. E., and M. A. G. D. I. M. MASHALY, "Relationship between circulating thyroid hormones and humoral immunity in immature male chickens", Developmental & Comparative Immunology, vol. 10, issue 3: Pergamon, pp. 395-403, 1986. Abstract
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BACHMAN, S. E., J. M. BACHMAN, and M. M. Mashaly, "EFFECT OF PHOTOPERIOD ON DIURNAL RHYTHM OF PLASMA TESTOSTERONE IN MALE CHICKENS", POULTRY SCIENCE, vol. 62, issue 7: POULTRY SCIENCE ASSOC INC 1111 NORTH DUNLAP AVE, SAVOY, IL 61874, pp. 1376-1377, 1983. Abstract
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Bachman, S. E., and M. A. G. D. I. M. MASHALY, "Relationship between circulating thyroid hormones and cell-mediated immunity in immature male chickens", Developmental & Comparative Immunology, vol. 11, issue 1: Pergamon, pp. 203-213, 1988. Abstract
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BACHMAN, J. M., S. E. BACHMAN, and M. M. Mashaly, "ROLE OF CORTICOSTERONE IN CHICKEN EMBRYONIC-DEVELOPMENT", FEDERATION PROCEEDINGS, vol. 43, issue 3: FEDERATION AMER SOC EXP BIOL 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998, pp. 623-623, 1984. Abstract
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Bachman, S. E., J. M. Bachman, and M. A. G. D. I. M. MASHALY, "Effect of photoperiod on the diurnal rhythm of plasma testosterone, dihydrotestosterone and androstenedione in mature male chickens", Comparative Biochemistry and Physiology Part A: Physiology, vol. 87, issue 3: Elsevier, pp. 775-779, 1987. Abstract
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Badahdah, W. A., and S. A. Mohamed, 2. Development of tibiofemoral angle in normal children from 2 to 12 years of age in Riyadh City-Saudi Arabia, , Riyadh, King Saud University, 2011.
Badary, O. A., H. M. AbdEl-Gawad, R. A. Taha, and A. A. Ali, "Effects of benzo[a]pyrene on tissue activities of metabolizing enzymes and antioxidant system in normal and protein-malnourished rats.", Journal of Biochemical and Molecular Toxicology 01/2003; 17(2):86-91, vol. 17, issue 2, pp. 86- 91, 2003.
Badary, O. A., H. M. Abdelgawad, and R. A. Taha, "Modulation of hepatic, lung and stomach carcinogen-metabolising enzyme activities in mice by thymoquinone.", The Egyptian Journal of Biochemistry and Molecular Biology , vol. 24, pp. 373-393, 2006.
Badary, O. A., H. M. Abdelgawad, and R. A. Taha, "In vitro modulation by thymoquinone, carvacrol, carvone and thymol of rat hepatic metabolizing enzymes", Proceedings of the annual conference of Egyptian Society of Biochemistry and Molecular Biology, April, 2009.
Badawey, A. M., A. E. - A. A. B. El-Aleem, and N. T. Lamie, "Stability Indicating Methods for the Determination of Sildenafil Citrate in the Presence of Its Degradation Product", International J. of Comprehensive Pharmacy, 2011.
Badawey, A. M., N. M. Mostafa, A. E. - A. A. B. El-Aleem, and N. T. Lamie, "Stability-indicating PLS and PCR Chemometric Methods for the Determination of Rosuvastatin in Presence of its Two Oxidative Degradation Products", International Journal of Pharmacy and Pharmaceutical Sciences, 2011.
Badawey, A. M., A. E. - A. A. B. El-Aleem, and N. T. Lamie, "Membrane Sensors for the Selective Determination of Terazosin Hydrochloride Dihydrate in Presence of its Degradation Product", International J. of Comprehensive Pharmacy, 2011.
Badawey, A. M., N. M. Mostafa, A. E. - A. A. B. El-Aleem, and N. T. Lamie, "Stability Indicating Spectrophotometric Methods for Determination of Rosuvastatin in the Presence of Its Acid Degradation Products by Derivative Spectrophotometric Tecniques", Journal of Advanced Pharmaceutical Research, 2011.
Badawey, A. M., N. M. Mostafa, A. E. - A. A. B. El-Aleem, and N. T. Lamie, "Selective Determination of Bambuterol Hydrochloride in the Presence of its Active Metabolite Terbutaline", Int. J. of Comprehensive Pharmacy, 2011. Abstract

Stability-indicative determination of bambuterol hydrochloride (BH) in the presence of its degradation product (terbutaline) , which is also the metabolite, is investigated. The degradation

Badawi, A. M., E. Weiss, W. C. Sleeman IV, and G. D. Hugo, "Classifying geometric variability by dominant eigenmodes of deformation in regressing tumours during active breath-hold lung cancer radiotherapy", Physics in Medicine and Biology, vol. 57: IOP Publishing, pp. 395, 2012. Abstract
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Badawi, M. H., "Diazotroph strain-wheat cultivar affinity guarantees proper cereal yield and soil nitrogen budget", Research Journal of Agriculture and Biological Sciences, vol. 10, issue 1, pp. 8-16, 2014. Abstract
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Badawi, A. M., A. M. Hashem, A. E. Hendawi, N. E. Kady, A. - B. M. Youssef, and M. F. ABDELWAHAB, "Computer Aided Ultrasonographic Tissue Characterization of Different liver pathologies Preliminary Results", Kasr Elaini Medical Congress Conf.: Cairo Medical School, 1995. Abstract
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Badawi, N. M., D. A. A. Mahmoud H Teaima, Khaled M El-say, M. A. El-Nabarawi, and M. E. M. mazar., ". Development of Pomegranate Extract-Loaded Solid Lipid Nanoparticles: Quality by Design Approach to Screen the Variables Affecting the Quality Attributes and Characterization. ", ACS Omega, vol. 5, issue 34, pp. 21712-21721, 2020.
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