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A novel hybrid cryptosystem based on DQFrFT watermarking and 3D-CLM encryption for healthcare services

Frontiers of Information Technology & Electronic Engineering 2023年第7期24卷 1045-1061页

作者： fatma KHALLAF Walid EL-SHAFAI El-Sayed M.EL-RABAIE Naglaa F.SOLIMAN Fathi EAbd E.L-SAMIE Department of Electronics and Electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf 32952Egypt Department of Electrical Engineering Faculty of EngineeringAhram Canadian University6^(th)October CityGiza 12451Egypt Security Engineering Lab Computer Science DepartmentPrince Sultan UniversityRiyadh I1586Saudi Arabia Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh 11671Saudi Arabia

Quaternion algebra has been used to apply the fractional Fourier transform(FrFT)to color images in a comprehensive ***,the discrete fractional random transform(DFRNT)with adequate basic randomness remains to be *** paper presents a novel multistage privacy system for color medical images based on discrete quaternion fractional Fourier transform(DQFrFT)watermarking and three-dimensional chaotic logistic map(3D-CLM)***,we describe quaternion DFRNT(QDFRNT),which generalizes DFRNT to handle quaternion signals effectively,and then use QDFRNT to perform color medical image adaptive *** efficiently evaluate QDFRNT,this study derives the relationship between the QDFRNT of a quaternion signal and the four components of the DFRNT ***,it uses the human vision system's(HVS)masking qualities of edge,texture,and color tone immediately from the color host image to adaptively modify the watermark strength for each block in the color medical image using the QDFRNT-based adaptive watermarking and support vector machine(SVM)*** limitations of watermark embedding are also explained to conserve watermarking ***,3D-CLM encryption is employed to improve the system's security and efficiency,allowing it to be used as a multistage privacy *** proposed security system is effective against many types of channel noise attacks,according to simulation results.

关键词： Color medical image Quaternion Adaptive watermarking Encryption Fractional transform Three-dimensional chaotic logistic map(3D-CLM)

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Toxicity and sub-lethal effect of endemic plants from family Anacardiaceae on oviposition behavior of Aedes albopictus

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Asian Pacific Journal of Tropical Biomedicine 2015年第8期5卷 599-604页

作者： Wan fatma Zuharah Chan Jia Ling Nurfazlina Zulkifly Nik Fadzly School of Biological Sciences Universiti Sains Malaysia Vector Control Research Unit Universiti Sains Malaysia Centre of Marine & Coastal Studies (CEMACS) Universtiti Sains Malaysia

Objective: To evaluate the lethal concentration, oviposition deterrence and ovicidal activity of acetone extracts of Melanochyla fasciculiflora(M. fasciculiflora) leaf and Gluta renghas(G. renghas) leaf against Aedes albopictus(Ae. albopictus). Methods: To determine the lethal concentration of Anacardiaceae, ten test concentrations of the extracts ranging from 200 to 650 mg/L were selected for larvicidal bioassays and 25 early fourth instar larvae were exposed to the extracts for 24 h. The sub-lethal concentrations used for oviposition deterrence was the value of LC25, LC50 and LC75 from above study which is 235 mg/L, 470 mg/L and 705 mg/L for M. fasciculiflora extract and 187.5 mg/L, 375 mg/L and 562.5 mg/L for G. renghas extract, respectively. Twenty gravid Ae. albopictus were allowed to oviposit in different treated concentrations. For oviciding procedure, a total of 300 eggs of Ae. albopictus were soaked in solution with each treated concentration as mentioned above for 24 h. After 24 h, eggs were sieved and soaked in seasoned water, and hatching rates were calculated. For comparison, only seasoned water was used in control ***: G. renghas demonstrated lower LC50 value of 372.80 mg/L compared to M. fasciculiflora(467.90 mg/L). The activity index of negative oviposition revealed the deterrent effect and thus, caused a remarkable negative response resulting in oviposition of fewer eggs compared with control(without plant extract). The acetone extract of M. fasciculiflora was more effective than G. renghas extract in displaying oviposition deterrence potential since the latter did not possess the deterring effect within the concentration range tested. However, both plant extracts exhibited excellent oviciding effect as 92.33% of eggs failed to be hatched when treated with 705.0 mg/L of M. fasciculiflora and 86.67% with 562.5 mg/L of G. renghas. The oviposition deterrence and percentage of egg mortality were directly proportional to the concentrations

关键词： Aedes Control Larvicide Mosquito Oviposition Plant extract Repellent

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Control of Tetranychus urticae Koch by extracts of three essential oils of chamomile,marjoram and Eucalyptus

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Asian Pacific Journal of Tropical Biomedicine 2012年第1期2卷 24-30页

作者： Abd El-Moneim MR Afify fatma S Ali Turky AF Department of Biochemistry Faculty of AgricultureCairo University Departmetn of Zoology and Nematology Faculty of AgricultureCairo University

Objective:To evaluate the acaricidal activity of extracts of three essential oils of chamomile,marjoram and Eucalyptwi against Tetranychus urtiaie(***.)***:Extracts of three essential oils of chamomile,marjoram and Eucalyptus with different concentrations(0.5%,1.0%,2.0%,3.0%and 4.0%)were used to control *** ***:The results showed that chamomile(Chamomilla recutita)represented the most potent efficient acaricidal agent against Tetranychus followed by marjoram(Marjorana hortensis)and *** LC_(50)values of chamomile,marjoram and Eucalyptus for adults were 0.65,1.84 and 2.18,respectively and for eggs 1.17,6.26 and 7.33,*** of enzymes including glutathione-Stxansferase,esterase(α-esterase andβ-esterase)and alkaline phosphatase in susceptible mites were determined and activities of enzymes involved in the resistance of acaricides were *** enzyme was significantly decreased at LC_(50)of both chamomile and marjoram compared with positive *** chromatography-mass spectrometer(CC-MS)proved that the major compositions of Chamomilla recutita areα-bisabolol oxide A(35.251%),and trans-3-farersene(7.758%),while the main components of Marjorana hortensis are terpincne-4-ol(23.860%),p-cymene(23.404%)and sabinene(10.904%).Conclusions:It can be concluded that extracts of three essential oils of chamomile,marjoram and Eucalyptus possess acaricidal activity against ***.

关键词： Tetranychidae Plant essential oils Enzymes Glutathione-S-transferase Non specific esterase Alkaline phosphatase Protease Chamomile Marjoram Eucalyptus

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The Effect of the Process on Mechanical Properties of Polylactic Acid-Date Palm Leaf Fibers Composite Films Produced By Extrusion Blowing

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Journal of Renewable Materials 2019年第9期7卷 891-901页

作者： fatma Kharrat Rania Chaari Mohamed Khlif Loic Hilliou José A.Covas Mohamed Haboussi Hedi Nouriand Chedly Bradai National School of Engineers of Sfax(ENIS) Laboratory of Electromechanical Systems(LASEM)B.P.W.3038SfaxTunisia Institute for Polymers and Composites University of MinhoGuimarãesPortugal Laboratoire des Sciences des Procédés et des Matériaux(LSPM) CNRS UPR 3407UniversitéParis 13Sorbonne-Paris-Cité93430VilletaneuseFrance

Biocomposite films prepared with melt compounding and film blowing have become a new trend in plastic research to deliver more eco-friendly *** acid(PLA)was melt compounded with minimally processed date palm leaf fiber(DPLF)and converted into films by blown film *** compounding was done in order to enhance the film mechanical properties in one hand,and to decrease the film production cost in the other *** this present study,a reference PLA film and films with 1%,2%,and 5%of DPLF(weight%)were produced with different process *** spatial variations in films thickness and lay flat width indicate that the addition of DPLF up to 2%enhances the bubble stability for the tested process ***,the composite with 5%DPLF shows nearly the same processability window as the neat *** structural and mechanical characterizations of films suggest a reinforcing effect of the PLA matrix up to 2%of fiber(with an optimum at 1%).Larger DPLF loading leads to depressed and more anisotropic mechanical properties,related to an increased density of defects at the fiber-PLA fragile interface and to a DPLF-induced enhanced PLA thermal degradation and amorphous phase orientation.

关键词： PLA palm leaf fibers biocomposites film blowing

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The Implication of microRNAs as non-invasive biomarkers in 179 Egyptian breast cancer female patients

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Oncology Research 2022年第6期30卷 269-276页

作者： NADIA ZSHAABAN NASHWA KIBRAHIM HELEN NSAADA fatma HEL-RASHIDY HEBATALLAH MSHAABAN NERMEEN MELBAKARY AHMAD SKODOUS Biochemistry Department Faculty of ScienceAlexandria UniversityP.O.Box 21568AlexandriaEgypt Radiation Biology Department National Center for Radiation Research&TechnologyEgyptian Atomic-Energy AuthorityP.O.Box 8029CairoEgypt National Cancer Institute Cairo UniversityP.O.Box 11796CairoEgypt

Background:MicroRNAs(miRs)are small(19–25 nucleotides),non-protein coding RNAs that regulate gene expression,and thus play essential roles in cell cycle *** evidence has demonstrated that the expression of several miRs is dysregulated in human ***:The study includes 179 female patients and 58 healthy women Patients were identiﬁed as luminal A,B,Her-2/neu,and basal-like,as well as classiﬁed into I,II,and III *** of the expression fold change of miR-21 and miR-34a with molecular markers,including the oncogene Bcl-2(B-cell lymphoma 2)and the tumor suppressor genes BRCA1(breast cancer susceptibility gene 1),BRCA2(breast cancer susceptibility gene 2),and the tumor suppressor protein p53,was carried out for all patients,pre-and post-chemotherapy,and for all healthy ***:At diagnosis(pre-chemotherapy),miR-21 was up-regulated(p<0.001),while miR-34a was down-regulated(p<0.001).Post-chemotherapy,the expression of miR-21 decreased signiﬁcantly(p<0.001),while the expression of miR-34a increased signiﬁcantly(p<0.001).Conclusion:miR-21 and miR-34a may be helpful to non-invasive biomarkers to evaluate the response of breast cancer to chemotherapy.

关键词： miR-21 and miR-34a Breast-cancer BRCA1 and BRCA2 Bcl-2 p53

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Prevention of H2O2 Induced Oxidative Damages of Rat Testis by Thymus algeriensis

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Biomedical and Environmental Sciences 2016年第4期29卷 275-285页

作者： fatma Guesmi Hamida Beghalem Amit K Tyagi Manel Ben Ali Ramla Ben Mouhoub Houda Bellamine Ahmed Landoulsi Laboratory of Biochemistry and Molecular Biology Faculty of Sciences of Bizerte Zarzouma Bizerte 7021 Tunisia Cytokine Research Laboratory Department of Experimental Therapeutics The University of Texas M. D. Anderson Cancer Center 1515 Holcombe Boulevard Houston TX 77030 USA Laboratory of Biomonitoring of the Environment (LRO1/ES14) Faculty of Sciences of Bizerte Zarzouma Bizerte 7021 Tunisia Service of Anatomo-Pathology of Menzel Bourguiba Bizerte 7050 Tunisia

Objective We evaluate the effects of Thymus algeriensis （TEO） against hydrogen peroxide （H202） toxicity on body and testis weight, testis sperm count, testis lipid peroxidation, and antioxidant enzyme activities in rats. Methods Rats were treated with low （LD） and high dose （HD） of H202 （0.1 and 1 mmol/L） in the presence or absence of TEO （150 mg/kg）. Results The results exhibited a significant decrease in body weight and testis weight, in total sperm number decrease （P〈0.05）, sperm motility and percentage of sperm viability, leading to complete arrest, in sperm flagellar beat frequency by the gavage of 1 mmol/L H202 compared to controls. The administration of H2O2 resulted in a significant reduction in testis GSH, GPx, CAT, SOD, and GST activity and significant increase （P〈0.05） in MDA concentration compared with the untreated control animals. TEO pre-treatment protected testis from the H2O2 generated oxidative stress. These results were confirmed by histological architecture examinations. Conclusion H2O2 has the ability to alter the sperm function, characteristics and development of testis. However, TEO is an efficient natural agent, which can prevent the testis from H2O2-induced oxidative damage in rats.

关键词： Testis Hydrogen peroxide TEO Antioxidants Infertility

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Coagulant compounds in Rubia cordifolia L.

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Journal of Future Foods 2023年第3期3卷 220-224页

作者： Peiqing Wang Jiajia Wang fatma MEl-Demerdash Jinfeng Wei Huaihe Hospital Henan UniversityKaifeng 475004China National R&D Center for Edible Fungus Processing Technology Henan UniversityKaifeng 475004China Department of Environmental Studies Institute of Graduate Studies and ResearchAlexandria UniversityAlexandria 21526Egypt Joint International Research Laboratory of Food&Medicine Resource Function Henan ProvinceKaifeng 475004China Henan Kaifeng College of Science Technology and Communication Kaifeng 475004China

Rubia cordifolia *** to Rubiaceae *** medicinal parts are mainly root and rhizome,which is included in the Chinese Pharmacopoeia(2020),has the effect of cooling blood and stopping bleeding,removing stasis and channeling ***,studies on the hemostatic effect of *** mainly focus on extracts,and the hemostatic components are less ***,chemical constituents and coagulant activity of *** were investigated in this *** compounds were isolated and identified from ***,including 1-hydroxy-2-methyl-9,10-anthraquinone(1),1,4-dihydroxy-2-methylanthraquinone(2),palmitic acid(3),tricosanoic acid(4),ω-hydroxypachybasin(5),ursolic acid(6),oleanolic acid(7),rubilactone(8),β-sitosterol(9),cordifoliol(10),1,3-dihydroxy-2-ethoxymethyl-9,10-anthraquinone(11).ω-Hydroxypachybasin was isolated from Rubia genus for the first time.1,4-Dihydroxy-2-methylanthraquinone,rubilactone and 1,3-dihydroxy-2-ethoxymethyl-9,10-anthraquinone could remarkably shorten the plasma calcium coating time in vitro,thus indicating that they had procoagulant activity.

关键词： Rubia cordifolia L. Chemical constituents Coagulant activity

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Physiological, histopathological and cellular immune effects of Pergularia tomentosa extract on Locusta migratoria nymphs

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Journal of Integrative Agriculture 2019年第12期18卷 2823-2834页

作者： Meriam Miladi Khemais Abdellaoui Amel Ben Hamouda Iteb Boughattas Mouna Mhafdhi fatma Acheuk Monia Ben Halima-Kamel Higher Agronomic Institute of Chott Mariem Sousse UniversityChott Mariem 4042Tunisia General Directorate of Plant Health and Agricultural Inputs Control Ministry of AgricultureTunis 1002Tunisia Laboratory of Valorization and Conservation of Biological Resources Department of BiologyFaculty of SciencesUniversity of BoumerdesBoumerdes 35000Algeria

The migratory locust Locusta migratoria(Orthoptera,Acrididae)is one of the most important pests due to its extensive and severe damage to crops in large parts of Africa and *** and ecologically natural products such as bota nical insecticides are emergi ng can didates for replaceme nt of usually applied chemical *** crude methanolic extract of Pergularia tomentosa(PME)was investigated for their toxicity and physiological aspects on *** *** showed that treatment of newly emerged fourth and fifth instar nymphs resulted in significant mortality and significant repellent activity with an LC50 value of 0.18 and 0.38%,respectively,after seven days of *** PME toxicity was also dem on strated by histopathological cha nges in the alime ntary canal resulting in con siderable disorganization and severe damage of the caeca and proventriculus *** extract induced cellular immune reactions which manifested by a significant decrease in the number of the differential haemocyte counts(prohemocytes and plasmatocytes)and important cell *** of biochemical analyses showed that the PME reduced the activity of acetylcholinesterase and induced the glutathione *** neurotoxic effect was confirmed by the histological alterations in the brain structure,particularly in the neurosecretory cells showing typical signs of cell necrosis.

关键词： Locusta migratoria Pergularia tomentosa toxicity histopathology haemocytes enzymes

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Sudden hearing loss associated with peginterferon and ribavirin combination therapy during hepatitis C treatment

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World Journal of Gastroenterology 2007年第40期13卷 5411-5412页

作者： Héla Elloumi fatma Houissa Najet Bel Hadj Dalila Gargouri Malika Romani Jamel Kharrat AbdelJabbar Ghorbel Department of Gastroenterology and Hepatology Habib Thameur HospitalTunisTunisia

Adverse effects associated with peginterferon and ribavirin during hepatitis C treatment are well known. Sudden hearing loss has rarely been reported. Possible mechanisms involved include direct ototoxicity of interferon, autoimmunity, and hematological changes. Hearing loss is frequently fully resolved after discontinuation of antiviral therapy. We report a 47-year- old man with chronic hepatitis C, genotype 2 ac who developed sudden hearing loss 22 wk after starting therapy with peginterferon alpha 2a at a dose of 180 ~g per week and ribavirin 800 mg per day. Since symptoms did not worsen, antiviral therapy was continued for 2 wk, according to the patient＇s wish. Hearing loss resolved within 2 wk after the end of treatment. Serum liver alanine aminotransferase remained normal during and after the end of antiviral therapy. HCV RNA was undetectable at the end of therapy and remained negative 24 wk later. Thus, patients should be aware that hearing loss may occur with peginterferon therapy, but the decision whether to continue or to stop the treatment is based on the clinical judgment of the physician and the wishes of the patient.

关键词： Adverse effects Hearing loss Hepatitis C Interferon Ribavirin

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Sperm quality improvement after date seed oil in Vitro supplementation in spontaneous and induced oxidative stress

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Asian Journal of Andrology 2009年第3期11卷 393-398页

作者： Ben A. fatma Chakroun F. Nozha Dammak Ines Attia Hamadi Hentati Basma Ammar K. Leila Human Pathologies and Oxidative Stress Unit Superior Institute of Biotechnology of Sfax Sfax 3028 Tunisia Laboratory of Histology Embryology and Reproductive Biology Medicine Faculty of Sfax Sfax 3028 Tunisia

In vitro supplementation with date seed oil （DSO） can protect spermatozoa against hydrogen peroxide （HiO2）- mediated damage and can improve sperm function, possibly owing to antioxidant properties. We tested the antioxidant effects of DSO on human sperm motility, sperm viability, reacted acrosome and lipid peroxidation assessed in vitro after H202-mediated oxidative damage in spermatozoa. Sixteen patients （mean age： 35 years; range： 25-45 years） referred to the Histology-Embryology Laboratory of the Medicine Faculty of Sfax for semen analysis after 12-24 months of sexual intercourse without conception were selected. After spermiogram, sperm selection by twointerface discontinuous Sill Select gradient was performed, and selected spermatozoa were used in four experimental assays： control; incubation with 100um H2O2; incubation with 0.1% DSO; and co-incubation with 0.1% DSO and 100 um H2O2. Motility and viability were determined using World Health Organization criteria. Acrosome reaction and lipid peroxidation were assessed by staining with fluorescein isothiocyanate-Pisum sativum and spectrophotometric measurement of malondialdehyde, respectively. Results showed that incubation with H2O2 alone led to a significant increase in lipid peroxidation （57.83%, P 〈 0.05） associated with a significant decrease in sperm motility, sperm viability （after 30 min and 24 h） and percentage of reacted acrosome （P 〈 0.05）. Date seed oil im- proved sperm motility after 24 h of incubation （P 〈 0.05） and protected spermatozoa against the deleterious effects of H2O2 on motility, viability, acrosome reaction and lipid peroxidation. We conclude that supplementation with DSO may have a function in antioxidant protection against male infertility.

关键词： acrosome reaction date seed oil in vitro lipid peroxidation sperm motility sperm viability

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