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Seasonal influence of freshwater discharge on spatio-temporal variations in primary productivity, sea surface temperature, and euphotic zone depth in the northern Bay of Bengal

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Acta Oceanologica Sinica 2024年第6期43卷 1-14页

作者： hafez ahmad Felix Jose Md.Simul Bhuyan Md.Nazrul Islam Padmanava Dash Geosystems Research Institute/Department of Geosciences Mississippi State UniversityStarkville 39759USA Department of Oceanography University of ChittagongChittagong 4331Bangladesh Department of Marine&Earth Sciences Florida Gulf Coast UniversityFort Myers 33965USA Bangladesh Oceanographic Research Institute Cox’s Bazar 4730Bangladesh Faculty of Marine Sciences&Fisheries Institute of Marine SciencesUniversity of ChittagongChittagong 4331Bangladesh Department of Geography and Environment Jahangirnagar UniversityDhaka 1342Bangladesh Department of Geosciences Mississippi State UniversityStarkville 39759USA

Ocean productivity is the foundation of marine food web,which continuously removes atmospheric carbon dioxide and supports life at sea and on ***-temporal variability of net primary productivity(NPP),sea surface temperature(SST),sea surface salinity(SSS),mixed layer depth(MLD),and euphotic zone depth(EZD) in the northern B ay of Bengal(BoB) during three monsoon seasons were examined in this study based on remote sensing data for the period 2005 to *** compare the NPP distribution between the coastal zones and open BoB,the study area was divided into five zones(Z1-Z5).Results suggest that most productive zones Z2 and Zl are located at the head bay area and are directly influenced by freshwater discharge together with riverine sediment and nutrient *** Z1-Z5,the NPP ranges from 5 315.38 mg/(m^(2)·d) to 346.7 mg/(m^(2)·d)(carbon,since then the same).The highest monthly average NPP of 5 315.38 mg/(m^(2)·d) in February and 5 039.36 mg/(m^(2)·d) in June were observed from Z2,while the lowest monthly average of 346.72 mg/(m^(2)·d) was observed in March from Z4,which is an oceanic *** values vary from 6-154 m for the study area,and it has an inverse correlation with NPP *** is deeper during the summer season and shallower during the wintertime,with a corresponding increase in *** the year,monthly SST shows slight fluctuation for the entire study area,and statistical analysis shows a significant correlation among NPP,and EZD,overall positive between NPP and MLD,whereas no significant correlation among SSS,and SST for the northern ***-term trends in SST and productivity were significantly po sitive in head bay zones but negatively productive in the open *** findings in this study on the distribution of NPP,SST,SSS,MLD,and EZD and their seasonal variability in five different zones of BoB can be used to further improve the management of marine resources and overall environmental condition in response to clim

关键词： chlorophyll a sea surface temperature euphotic zone depth primary productivity Ganges-Brahmaputra ocean color Bay of Bengal monsoon

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Surgical Management of Mitral Valve Infective Endocarditis with Accidental Finding of Open Pulmonary Tuberculosis

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World Journal of Cardiovascular Surgery 2024年第5期14卷 61-67页

作者： ahmad Al Khaddour Mohammed Alharthi Alawab M. Mesallam Mohamed Agawi Mahmoud Ghalwash Ahmed Gotbi Mohamed Abdel hafez Fouly Marko Samanovic Nelson David Vega Murad El Gharbi Fawaz Altaf King Abdullah Medical Complex Jeddah KSA

Objective: This case report aimed to highlight intersections of TB and Cardiovasular diseases which carry high morbidity and mortality rates. Methods: We are reporting the surgical management of forty seven years female who had back ground history of IDDM (Insulin dependent diabetic Mellitus), ESRD (End stage renal disease) on HD (haemodialysis) also she had left subclavian artery stenosis, and paroxysmal atrial fibrillation. She was diagnosed with mitral valve infective endocarditis and found accidently to have an open pulmonary tuberculosis (TB) on the day before surgery. Results: She was started on first line anti-TB treatment. She was isolated in her private room and airborne precautions measures applied. The patient underwent a tissue Mitral Valve replacement and tricuspid valve repair annuloplasty. Special precautions were applied in Theatre and on cardiopulmonary bypass Machine guided by KAMC-J disinfection protocol. The patient made good recovery postoperatively. She was discharged well on day 7 post operatively. Conclusion: Intersections of TB and cardiovasular diseases carry high morbidity and mortality rates. Early diagnosis and early anti tuberculosis treatment can surely improve the patient prognosis. Our decontamination and disinfective procedures are recommended. Cases like this should be monitored long term for the development of further cardiovascular complication.

关键词： Tuberculosis (TB) Mycobacterium tuberculosis (MTB) Heater-Cooler and Bypass Machine New York Heart Association (NYHA)

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Hacking Anti-Shoplifting System to Hide Data within Clothes

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Computers, Materials & Continua 2021年第4期67卷 659-674页

作者： Al Hussien Seddik Saad E.H.hafez Zubair ahmad Department of Computer Science Faculty of ScienceMinia UniversityAl-Minya61519Egypt Department of Mathematics Faculty of ScienceHelwan UniversityCairoEgypt Department of Statistics Yazd UniversityYazdIran

Steganography has been used to prevent unauthorized access to private information during *** is the scheme of securing sensitive information by concealing it within carriers such as digital images,videos,audio,or *** steganography methods are working by assigning a cover le then embed the payload within it by making some modications,creating the ***,the left traces that are caused by these modications will make steganalysis algorithms easily detect the hidden *** to solve this issue,a novel,highly robust steganography method based on hacking anti-shoplifting systems has proposed to hide data within *** anti-Shoplifting system is an anti-theft security system that protects goods and products,leaving the store in an illegal way(i.e.,without paying for them).The proposed method works by modifying the default anti-shoplifting system by changing its built-in soft RFID(radio-frequency identication)tags sewn in clothes into NFC(Near Field Communication)*** NFC tags are smart tags that can communicate with NFC-Enabled smart-phones using NDEF(NFC Data Exchange Format).NDEF is one of the advancements added to RFID technology by NFC,which allows the data *** NDEF message has one/more NDEF records that contain record type,a unique ID,a length,and a payload of data that contains the secret message content that can be any type of data that ts in a byte *** on NDEF and NFC-enabled smart-phones,the proposed method will take the secret message from the sender,make use of his NFC-enabled smart-phone to communicate with the NFC tag,then hide the secret message within the NDEF’s payload of the NFC tag stuck in ***,to evaluate the proposed method,it has been compared with default(digital)steganography weak *** as time,lockable,robustness,attacks,capacity,and a few more *** results and comparisons showed that the proposed method is more efcient than default(digital)steganography and

关键词： Near-eld communication radio-frequency identication Steganography data hiding tags

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Fermentation, formulation and evaluation of PGPR Bacillus subtilis isolate as a bioagent for reducing occurrence of peanut soil-borne diseases

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Journal of Integrative Agriculture 2019年第9期18卷 2080-2092页

作者： Abdel-Gayed M.ahmad Abo-Zaid G.Attia Matar S.Mohamed hafez E.Elsayed Onion Garlic and Oil Crops Research DepartmentPlant Pathology Research InstituteAgricultural Research CenterGiza 12619Egypt Bioprocess Development Department Genetic Engineering and Biotechnology Research InstituteCity of Scientific Research and Technological ApplicationsNew Borg El-Arab CityAlexandria 21934Egypt Chemical Engineering Department Faculty of EngineeringJazan UniversityJazan 45142Saudi Arabia Plant Protection and Biomolecular Diagnosis Department Arid Lands Cultivation Research InstituteCity of Scientific Research and Technological ApplicationsNew Borg El-Arab CityAlexandria 21934Egypt

Four isolates of Bacillus subtilis coded,B4,B7,B8 and B10 were examined as biocontrol agents for their abilities and antagonistic effect on the in vitro growth of certain phytopathogenic fungi of peanut,Rhizoctonia solani and Sclerotium *** subtilis isolate B4(GenBank accession ***150884)was the highly effective one for inhibiting the fungal mycelial *** fermentation of *** isolate B4 was carried out and the maximum biomass achieved was 4.53 g L-1 at 11 *** subtilis isolate B4 was formulated and evaluated as a biofungicide to reduce peanut soil-borne diseases under greenhouse and field conditions at the side of Rizolex-T(fungicide)as *** by formulated plant growth-promoting rhizobacteria(PGPR)*** B4 and Rizolex-T in a soil infested with ***,*** and mixture of them were more effective in decreasing percentage of damping-off,root and pod rot disease incidence(%)in greenhouse and open field environment during the two seasons 2015 and *** by PGPR gave highly dry weight and number of healthy pods compared to control of fungi treatment which was nearby to dry weights of healthy pods achieved by treatments by Rizolex-T in a soil infested with ***,*** and mixture of *** PGPR *** B4 gave higher increasing of yield percentage than treatment by Rizolex-T in the two evaluated seasons 2015 and *** can conclude that the produced bioforumlated agent was more efficient as fungicide when compared with the other chemical synthesized fungicides,safe for human and the environment and economy.

关键词： peanut soil-borne diseases Bacillus subtilis biocontrol fermentation formulation

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Surgical Management of Mitral Valve Infective Endocarditis with Accidental Finding of Open Pulmonary Tuberculosis

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World Journal of Cardiovascular Surgery（心血管外科国际期刊） 2024年第5期 61页

作者： ahmad Al Khaddour Mohammed Alharthi Alawab M.Mesallam Mohamed Agawi Mahmoud Ghalwash Ahmed Gotbi Mohamed Abdel hafez Fouly Marko Samanovic Nelson David Vega Murad El Gharbi Fawaz Altaf

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Curculigo recurvata *** exhibits anti-nociceptive and anti-diarrheal effects in Albino mice and an in silico model

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Animal Models and Experimental Medicine 2020年第2期3卷 169-181页

作者： Shabbir ahmad Mst.Samima Nasrin A.S.M.Ali Reza Nishan Chakrabarty Md.Akramul Hoque Sanjida Islam Mohammad Shah hafez Kabir Syed Mohammed Tareq A.H.M.Khurshid Alam Md.Areeful Haque Md.Saiful Islam Arman Department of Pharmacy International Islamic University ChittagongChittagongBangladesh Department of Biochemistry&Molecular Biology University of ChittagongChittagongBangladesh Department of Chemistry Wayne State UniversityDetroitMIUSA Department of Pharmacy University of RajshahiRajshahiBangladesh Drug and Herbal Research Centre Faculty of PharmacyUniversiti Kebangsaan MalaysiaKuala LumpurMalaysia

Background: Curculigo recurvata(C. recurvata) is an enthnomedicinally important herb reported to have significant medicinal values. The present study aimed to explore the in vivo and in silico anti-nociceptive and anti-diarrheal effects of a C. recurvate rhizome methanol extract(Me-RCR).Methods: The analgesic effects of Me-RCR were assessed using acetic acid-induced writhing and the formalin-induced flicking test. The drugs were administered intraperitoneally(IP) at doses of 200 and 400 mg/kg body weight(bw). Anti-diarrheal activity was evaluated by assessing intestinal motility, hypersecretion, and fecal score in mice at oral doses of 200 and 400 mg/kg·bw. Computer facilitated analyses for anti-nociceptive and anti-diarrheal activities of three isolated compounds from C. recurvata were undertaken to identify the best-fit ***: The Me-RCR showed significant(P <.05) peripheral anti-nociception at the highest dose. The extract inhibited both early and late phases of nociception in the formalin-induced writhing test. In the castor oil-induced diarrhoea model, the extract significantly(P <.05) prolonged the onset time of diarrhoea, inhibited percentage of diarrhoea, and decreased both the volume and weight of intestinal contents. Rates of intestinal fluid accumulation inhibition were(33.61 ± 1.00)% and(46.44 ± 0.89)% at Me-RCR doses of 200 and 400 mg/kg·bw, respectively. Moreover, a significant(P <.05) reduction in gastrointestinal motility was observed. An absorption, distribution, metabolism, excretion and/or toxicity(ADME/T) test showed that the selected compounds yielded promising results, satisfying Lipinski's rule of five for predicting drug-like potential. Notably, of the three phytoconstituents curculigine and isocurculigine possessed the highest affinity for the COX-1 and COX-2. Isocurculigine was also identified as the most effective anti-diarrheal compound in the computer-facilitated ***: An extract of the plant C. recurvata

关键词： analgesic anti-diarrheal anti-nociceptive curculigine Curculigo recurvata isocurculigine

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Antidepressant,anxiolytic and anti-nociceptive activities of ethanol extract of Steudnera colocasiifolia *** leaves in mice model

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Journal of Coastal Life Medicine 2015年第11期 890-894页

作者： Mohammad Shah hafez Kabir Mohammed Munawar Hossain Md.Mominur Rahman Shabbir ahmad Abul Hasanat Tanvir ahmad Chowdhury Md.Akramul Hoque Nishan Chakrabarty Md.Shakhawat Hossain Department of Pharmacy International Islamic University ChittagongBangladesh

Objective:To estimate the antidepressant,anxiolytic and antinociceptive activities of ethanol extract of Steudnera colocasiifolia ***(***)***:Swiss albino mice treated with 1%Tween solution,standard drugs and ethanol extract of ***,respectively,were subjected to the neurological and antinociceptive *** tail suspension test and forced swimming test were used for testing antidepressant activity,where the parameter is the measurement of immobility *** activity was evaluated by hole board ***-nociceptive potential of the extract was also screened for centrally acting analgesic activity by using formalin induced licking response model and acetic acid induced writhing test was used for testing peripheral analgesic ***:Ethanol extract of *** significantly decreased the period of immobility in both tested models(tail suspension and forced swimming models)of antidepressant *** the hole board model,there was a dose dependant(at 100 and 200 mg/kg)and a significant increase in the number of head dipping by comparing with control(1%Tween solution)(P<0.05 and P<0.001).In formalin induced licking model,a significant inhibition of pain compared to standard diclofenac sodium was observed(P<0.05 and P<0.001).In acetic acid induced test,there was a significant reduction of writhing response and pain in mice treated with leaves extract of *** at 200 mg/kg body weight(P<0.05 and P<0.001).Conclusions:The results proofed the prospective antidepressant,anxiolytic and antinociceptive activities of ethanol extract of *** leaves.

关键词： Steudnera colocasiifolia K.Koch Antinociceptive Antidepressant Anxiolytic Hole board

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SYNTHESIS,CHARACTERIZATION AND SELECTIVE METAL BINDING PROPERTIES OF PHYSICALLY ADSORBED METHIONINE ON THE SURFACE OF ACIDIC,NEUTRAL AND BASIC ALUMINA TYPES

SYNTHESIS,CHARACTERIZATION AND SELECTIVE METAL BINDING PROPE...

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40th IUPAC Congress

作者： Maher M. Osman Osama M.F. hafez ahmad A. H Refaey Mohamed E. Mahmoud Chemistry Department Faculty of ScienceAlexandria University Chemistry Department Faculty of ScienceAlexandria University Chemistry Department Faculty of ScienceAlexandria University Division of Medical Chemistry Faculty of MedicineKing Abdulaziz UniversityP.O. Box 80205 Jeddah21589Kingdom of Saudi Arabia.

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Comparative study of hypoglycemic and antibacterial activity of organic extracts of four Bangladeshi plants

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Journal of Coastal Life Medicine 2016年第3期4卷 231-235页

作者： Mohammad Shah hafez Kabir Shabbir ahmad Md.Sofi Mahamoud Nishan Chakrabarty Md.Akramul Hoque Mohammed Munawar Hossain Md.Nazim Uddin Chy Mohammed Shoibe Department of Pharmacy International Islamic University ChittagongChittagongBangladesh

Objective:To examine hypoglycemic and antibacterial activity against some Gram-positive and Gram-negative bacteria of organic extracts of four Bangladeshi ***:An in vivo hypoglycemic effect on mice model was used to check the hypoglycemic effect of four Bangladeshi herbal organic extracts viz.,roots of Curculigo recurvata ***(Satipata)(***),leaf of Amorphophallus bulbifer Roxb.(Olkachu)(***),whole plant of Thunbergia grandiflora Roxb.(Nillata)(***)and leaf of Steudnera colocasiifolia ***(Yunnan)(***)using glibenclamide as a positive control and water as a negative *** were also tested for antibacterial activity on three Grampositive and four Gram-negative bacteria by disk diffusion ***,*** and *** were extracted with methanol and *** was extracted with ***:Among all the plant extract,only ethanol extract of *** leaves at 800 mg/kg dose significantly(P<0.01)reduced fasting glucose level in normal mice as compared to standard drug glibenclamide(5 mg/kg).Ethanol extract of *** leaves at 800 mg/kg dose decreased 20.28%of blood glucose level after 2 h of administration in normal mice,where glibenclamide decreased 39.63%.Methanol extract of *** didn’t show any zone of inhibition against the tested bacteria,but other three extracts showed a wide range of zone of ***,none of the extract showed antibacterial activity against all the tested *** extract of *** showed maximum zone of inhibition against Bacillus cereus[(10.50±0.50)mm],Salmonella typhi[(16.20±1.26)mm],Escherichia coli[(13.00±1.00)mm]and ethanol extract of *** showed maximum zone of inhibition against Staphylococcus aureus[(11.20±1.26)mm],Bacillus subtilis[(12.00±0.50)mm],Salmonella paratyphi[(10.80±0.29)mm].Only methanol extract of *** showed(8.50±0.50)mm and(7.20±0.76)mm zone of inhibition against P

关键词： Curculigo recurvata Steudnera colocasiifolia Hypoglycemic Antibacterial Disc diffusion method

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Melancholia in medieval Persian literature: The view of Hidayat of Al-Akhawayni

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World Journal of Psychiatry 2014年第2期4卷 37-41页

作者： Behnam Dalfardi Hassan Yarmohammadi ahmad Ghanizadeh Student Rese-arch Committee Shiraz University of Medical Sciences Research Office for the History of Persian Medicine Shiraz University of Medical Sciences Research Center for Psychiatry and Be-havioral Sciences Shiraz University of Medical SciencesHafez Hospital

"Melancholia" seems to be the oldest term used to describe the manifestations of depression. Throughout the history of medicine, melancholia has been the focus of consideration of many scholars who have provided varying definitions of this disorder and its manifestations. This continual process has resulted in the gradual development of the concept of melancholia over time. Persian scholars were among the scientists who have studied the melancholia and contributed to its concept. One figure, Al-Akhawayni Bukhari(?-983 AD), a Persian physician whose reputation was based on the treatment of patients with mental problems, investigated this disorder. He described Melancholia and explained its clinical manifestations and treatment methods. AlAkhawayni provided an early classification of the patients suffering from this disorder. Since the medieval Persian concept of melancholia is not well-known, this paper aims to review Al-Akhawayni's 10 th century knowledge on melancholia which can represent the early concept of this disorder in the Near East.

关键词： Al-Akhawayni Bipolar disorder Conversion disorder Depression Melancholia Persian Personality disorders Psychiatry

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