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Bioactivity of Indigenous Melia azedarach Extracts against the Tomato Leafminer,Tuta absoluta

Journal of Agricultural Science and Technology(A) 2019年第1期9卷 8-25页

作者： Efat Abou-Fakhr Hammad Amani Abbass Muhammad Abbass zaynab mohamad haidar Josiane El-Chemali Youssef Abou Jawdeh Ludmilla Ibrahim Department of Plant Protection Faculty of Agricultural&Veterinary SciencesLebanese UniversityDekwanehBeirutLebanon Ministry of Agriculture Department of Agriculture Extension ServicesBire HasanBeirutLebanon Exotica Department of Ornamental Plants ProductionZouk MosbehBeirutLebanon Department of Agriculture Faculty of Agricultural&Food SciencesAmerican University of BeirutBliss StreetP.O.Box 11-0236Riad El-Solh 1107-2020BeirutLebanon Department of Crop Production Faculty of Agricultural&Veterinary SciencesLebanese UniversityDekwanehBeirutLebanon

Fruit extracts of indigenous Melia azedarach were tested for their insecticidal bioactivity against the tomato leafminer(Tuta absoluta)under laboratory *** plants were exposed to moths,after/before application of *** included:crushed fruit extracts of water(500,000 ppm and 200,000 ppm),methanol and ethyl acetate(200,000 ppm)with and without mineral oil(2%);*** powder extracts(2,000 ppm)in different solvents:water,methanol,ethanol,ethyl acetate,hexane and chloroform;biorational products:neem oil,mineral oil,micronized sulfur and thyme *** released moths were removed from treated/untreated plants at 72 h and effect of treatments on adults,eggs,larvae and pupae were *** indicated that sulfur caused the lowest number of live moths to be present on treated plants and was not significantly different in its effect from that of *** extracts and neem *** extracts without and with oil caused the highest%of dry eggs and were comparable to neem *** in the two formulations(crushed fruits and/or powder)caused significant direct effects on immature instars:eggs,early larval instars and *** extracts and the tested products also caused indirect effect in form of significant decrease in number of developing the 3rd larval instars and new emerging moths compared to the *** sprays of these extracts against eggs,larvae and pupae on same treated plants lead to very low number of moths for a second generation of the pest which contributes to low buildup of pest population in a tomato crop.

关键词： Tuta leafminer tomato Melia plant extract indigenous species

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On the Marchenko System and the Long-time Behavior of Multi-soliton Solutions of the One-dimensional Gross-Pitaevskii Equation

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Journal of Partial Differential Equations 2015年第2期28卷 167-196页

作者： mohamad haidar Departement de Mathematiques Universite Paris-Sud 11 F-91405 Orsay Cedex.

We establish a rigorous well-posedness results for the Marchenko system associated to the scattering theory of the one dimensional Gross-Pitaevskii equation （GP）. Under some assumptions on the scattering data, these well-posedness results provide regular solutions for （GP）. We also construct particular solutions, called N- soliton solutions as an approximate superposition of traveling waves. A study for the asymptotic behaviors of such solutions when t-→±∞ is also made.

关键词： Non-linear Schr6dinger equation Gross-Pitaevskii equation.

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Comparing the demographic data and outcomes of septic shock patients presenting to teaching or non-teaching metropolitan hospitals in the United States

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World Journal of Emergency Medicine 2022年第6期13卷 433-440页

作者： Ralph Bou Chebl Nadim Kattouf mohamad Assaf Saadeddine haidar Gilbert Abou Dagher Sarah Abdul Nabi Rana Bachir Mazen El Sayed Department of Emergency Medicine American University of BeirutBeirut 11072020Lebanon

BACKGROUND:Studies looking at the effect of hospital teaching status on septic shock related in-hospital mortality are *** aim of this study was to examine the effect of hospital teaching status on mortality in septic shock patients in the United ***:This was a retrospective observational study,using the Nationwide Emergency Department Sample Database(released in 2018).All patients with septic shock were *** sample logistic regression was performed to assess the impact of hospital teaching status on patient ***:A total of 388,552 septic shock patients were included in the *** average age was 66.93 years and 51.7%were *** of the patients presented to metropolitan teaching hospitals(68.2%)and 31.8%presented to metropolitan non-teaching *** shock patients presenting to teaching hospitals were found to have a higher percentage of medical comorbidities,were more likely to be intubated and placed on mechanical ventilation(50.5%vs.46.9%)and had a longer average length of hospital stay(12.47 d vs.10.20 d).Septic shock patients presenting to teaching hospitals had greater odds of in-hospital mortality compared to those presenting to metropolitan non-teaching hospitals(adjusted odd ratio[OR]=1.295,95%confidence interval[CI]:1.256-1.335).CONCLUSION:Septic shock patients presenting to metropolitan teaching hospitals had significantly higher risks of mortality than those presenting to metropolitan non-teaching *** also had higher rates of intubation and mechanical ventilation as well as longer lengths of hospital stay than those in non-teaching hospitals.

关键词： Sepsis Septic shock In-hospital mortality Hospital teaching status United States Epidemiology Outcome

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SARS-CoV-2 involvement in central nervous system tissue damage

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Neural Regeneration Research 2022年第6期17卷 1228-1239页

作者： Muhammad Ali haidar zaynab Shakkour Mohammad Amine Reslan Nadine Al-Haj Perla Chamoun Karl Habashy Hasan Kaafarani Shima Shahjouei Sarah HFarran Abdullah Shaito Esber SSaba Bassam Badran Mirna Sabra Firas Kobeissy Maya Bizri Department of Biochemistry and Molecular Genetics Faculty of MedicineAmerican University of BeirutBeirutLebanon Faculty of Health Sciences University of BalamandBeirutLebanon Faculty of Medicine University of BalamandKouraLebanon Faculty of Science Lebanese UniversityBaabdaLebanon Program for Neurotrauma Neuroproteomics&Biomarkers ResearchDepartments of Emergency MedicineUniversity of FloridaGainesvilleFLUSA Department of Pathology and Laboratory Medicine American University of Beirut Medical CenterBeirutLebanon Biomedical Research Center Qatar UniversityDohaQatar Department of Experimental Pathology Immunology and MicrobiologyFaculty of MedicineAmerican University of BeirutBeirutLebanon Laboratory of Cancer Biology and Molecular Immunology Faculty of Sciences ILebanese UniversityHadathBeirutLebanon Faculty of Medicine Lebanese UniversityNeuroscience Research Center(NRC)BeirutLebanon Neuroscience Institute Neurology DepartmentGeisinger Health SystemPAUSA Department of Psychiatry American University of BeirutBeirutLebanon

As the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)continues to spread globally,it became evident that the SARS-CoV-2 virus infects multiple organs including the *** clinical studies revealed that patients with COVID-19 infection experience an array of neurological signs ranging in severity from headaches to life-threatening *** the exact mechanism by which the SARS-CoV-2 virus directly impacts the brain is not fully understood,several theories have been suggested including direct and indirect pathways induced by the *** possible theory is the invasion of SARS-CoV-2 to the brain occurs either through the bloodstream or via the nerve endings which is considered to be the direct *** findings are based on studies reporting the presence of viral material in the cerebrospinal fluid and brain ***,the indirect mechanisms,including blood-clotting abnormalities and prolonged activation of the immune system,can result in further tissue and organ damages seen during the course of the *** overview attempts to give a thorough insight into SARS-CoV-2 coronavirus neurological infection and highlights the possible mechanisms leading to the neurological manifestations observed in infected patients.

关键词： autoantibodies CNS infection coagulopathy COVID-19 encephalitis neuroinflammation renin-angiotensin system viral encephalopathy

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