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FEKETE-SZEGÖ INEQUALITY FOR A SUBCLASS OF NON-BAZILEVIĆ FUNCTIONS INVOLVING CHEBYSHEV POLYNOMIAL
( SABA N. AL-KHAFAJI ),( Serap Bulut ),( ABDUL RAHMAN S. JUMA ) 호남수학회 2021 호남수학학술지 Vol.43 No.3
In this present work, we obtain certain coefficients of the subclass H<sub>λ,γ</sub> (s, b, n) of non-Bazilević functions and estimate the relevant connection to the famous classical Fekete-Szegö inequality of functions belonging to this class.
A review on thermomechanical properties of polymers and fibers reinforced polymer composites
N. Saba,M. Jawaid 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.67 No.-
Polymer composites offered broad engineered applications, however their diversity get restricted owing to fluctuations in thermomechanical properties during heating or cooling hence great concern required prior their applications through thermomechanical analysis (TMA). Traditionally, TMA or dilatometry found to be simple, ideal, reliable, sensitive, excellent and basic thermal analytical technique. TMA provides valuable information on thermal expansion, glass transitions temperature (Tg), softening points, composition and phase changes on material of having different geometries simply by applying a constant force as a function of temperature. This compilation highlights the basics and experimental of TMA for both research and technical applications and also provide literature on TMA of polymers, hybrid composites, nanocomposites and their diverse applications.
NEW THEOREM ON SYMMETRIC FUNCTIONS AND THEIR APPLICATIONS ON SOME (p, q)-NUMBERS
SABA, N.,BOUSSAYOUD, A. The Korean Society for Computational and Applied M 2022 Journal of applied mathematics & informatics Vol.40 No.1-2
In this paper, we present and prove an new theorem on symmetric functions. By using this theorem, we derive some new generating functions of the products of (p, q)-Fibonacci numbers, (p, q)-Lucas numbers, (p, q)-Pell numbers, (p, q)-Pell Lucas numbers, (p, q)-Jacobsthal numbers and (p, q)-Jacobsthal Lucas numbers with Chebyshev polynomials of the first kind.
Yao Sadaiou Sabas Barima,Djedoux Maxime Angaman,Kobenan Pierre N`gouran,N`guessan Achille Koffi,Fidele Zamble Tra Bi,Roeland Samson 대한환경공학회 2016 Environmental Engineering Research Vol.21 No.2
In most African urban areas, Particulate Matters (PM) concentration exceeds by far the WHO limits. In these areas, plants can play a key role in removing particles. In this study, we evaluated three ornamental species (Jatropha interrigima, Ficus benjamina, Barleria prionitis) used in Abidjan Ivory Coast). Leaf-encapsulated saturation isothermal remnant magnetisation (SIRM) were measured and the relationship between PM captured and leaf wettability were done. The sampling were performed at roadsides and Parks. Firstly, Leaf-encapsulated and total leaf SIRM were quantified and the wettability was determined by drop contact angles (DCA). Secondly, the relationship between leaf SIRM and wettability was found. Results showed that leaf SIRM was two to ten times higher at roadsides than in Parks. Total leaf SIRM was also higher on mature leaves in Main roads suggesting a particle accumulation in leaves over time especially in waxy species (Ficus benjamina). This species encapsulated other than 20% of total leaf SIRM. All tested species were highly-wettable (40° < DCA < 90°). Thus, Jatropha interrigima with its leaf trichomes and F. benjamina with its leaf waxes were more wettable. A significantly positive correlation was found between wettability intensity and leaf SIRM.
Tolulope O. Ajala,Mbang N. Femi-Oyewo,Oluwatoyin A. Odeku,Oluwasanmi O. Aina,Adebowale B. Saba,Olayinka O. Oridupa 한국약제학회 2016 Journal of Pharmaceutical Investigation Vol.46 No.2
The ethanol extract of Phyllanthus amarus (Schum and Thonn), a plant of ethnomedicinal importance, was formulated into herbal cream and ointment and evaluated using physicochemical, safety and antimicrobial properties. The extract was obtained by maceration and the antimicrobial properties tested on clinically isolated pathogenic bacteria (Staphylococcus aureus and Pseudomonas aeruginosa) and dermatophytes (Trichophyton rubrum and Candida albicans) using established methods. Cream and ointment formulations containing 1–10 % w/w extract was prepared and 4 % w/w humectant (glycerin) was incorporated into the cream while 5 % w/w surfactant (cetomacrogol 1000) was incorporated to the ointment. The results showed that the pH of the formulations was acidic and the viscosity ranged from 1250 to 4950 cP for ointments and 570–1233 cP for creams. The presence of humectant and surfactant significantly (p\0.05) reduced the viscosities of the formulations. The results of dermal irritation showed negligible irritation index while subchronic toxicity tests showed that the formulations did not cause any visible lesions in the skin of the animals after application for twenty-one days. The in vitro antimicrobial properties of formulations were concentration-dependent with the creams showing higher activity. Furthermore, the in vivo activity of the cream on S. aureus showed increased antibacterial activity with increase in extract concentration and humectant presence. The herbal cream and ointment of Phyllanthus amarus extract had acceptable physicochemical and safety profiles with significant (p\0.05) in vitro and in vivo antimicrobial activity. Thus, the formulations could be useful in the treatment of skin infections instead of using the extract for bathing and rubbing.
Howaida I. Abd-Alla,Nagwa M. M. Shalaby,Manal A. Hamed,Nagy Saba El-Rigal,Samira N. Al-Ghamdi,Jalloul Bouajila 대한약학회 2016 Archives of Pharmacal Research Vol.39 No.1
Three sesquiterpene lactones [two germacranolides (micranthin and sintenin) and one guaianolide (4b,10adihydroxy- 5b,7b,8bH-guaia-1,11(13)dien-12,8a-olide)] and four derivatives of 3-methoxy flavones (santin, quercetagetin- 3,6,30-trimethyl ether, quercetagetin-3,6-dimethyl ether, and 5,7 dihydroxy 3,30,40-trimethoxy flavone) were isolated from the ethyl acetate extract (EAE) of the aerial parts of Achillea biebersteinii Afan. (Asteraceae). Evaluation of protective and therapeutic effects of EAE against ethanol-induced gastric ulcer in rats was carried. Antiulcer activity evaluation was done through measuring ulcer indices, stomach acidity, gastric volume and lesion counts. Oxidative stress markers; malondialdehyde, glutathione and superoxide dismutase were also estimated. The work was extended to determine the histopathological assessment of the stomach. Gastric ulcer exhibited a significant elevation of the ulcer index and oxidative stress markers. The extract attenuated these increments and recorded protective and therapeutic effects against gastric ulcer. Hyperglycaemia increases the mucosal susceptibility to ulcerogenic stimuli and predisposes gastric ulceration. In vitro a-amylase inhibitory assay was applied to evaluate the post prandial antihyperglycaemia activity. The result showing that the EAE has the ability to reduce starch-induced postprandial glycaemic excursions by virtue of potent intestinal a-amylase inhibitory activity. These findings demonstrated the remarkable potential of A. biebersteinii as valuable source of antiulcer agent with post prandial hyperglycaemia lowering effect.
Elisa Cuadrado-Godia,Pratistha Dwivedi,Sanjiv Sharma,Angel Ois Santiago,Jaume Roquer Gonzalez,Mercedes Balcells,John Laird,Monika Turk,Harman S. Suri,Andrew Nicolaides,Luca Saba,Narendra N. Khanna,Jas 대한뇌졸중학회 2018 Journal of stroke Vol.20 No.3
Cerebral small vessel disease (cSVD) has a crucial role in lacunar stroke and brain hemorrhages and is a leading cause of cognitive decline and functional loss in elderly patients. Based on underlying pathophysiology, cSVD can be subdivided into amyloidal and non-amyloidal subtypes. Genetic factors of cSVD play a pivotal role in terms of unraveling molecular mechanism. An important pathophysiological mechanism of cSVD is blood-brain barrier leakage and endothelium dysfunction which gives a clue in identification of the disease through circulating biological markers. Detection of cSVD is routinely carried out by key neuroimaging markers including white matter hyperintensities, lacunes, small subcortical infarcts, perivascular spaces, cerebral microbleeds, and brain atrophy. Application of neural networking, machine learning and deep learning in image processing have increased significantly for correct severity of cSVD. A linkage between cSVD and other neurological disorder, such as Alzheimer’s and Parkinson’s disease and non-cerebral disease, has also been investigated recently. This review draws a broad picture of cSVD, aiming to inculcate new insights into its pathogenesis and biomarkers. It also focuses on the role of deep machine strategies and other dimensions of cSVD by linking it with several cerebral and non-cerebral diseases as well as recent advances in the field to achieve sensitive detection, effective prevention and disease management.