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21. Efficient Access to Disilylated N-Heterocycles fused Azasilines by Intramolecular Silapalladation of Alkynes

Author

Noël-Duchesneau, Ludovik, Ahmad, Maha, Maddaluno, Jacques, Durandetti, Muriel, Chimie Organique et Bioorganique : Réactivité et Analyse (COBRA), Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie Organique Fine (IRCOF), Université de Rouen Normandie (UNIROUEN), and Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[CHIM.ORGA]Chemical Sciences/Organic chemistry, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2019

24. Mango ( L.): a magnificent plant with cancer preventive and anticancer therapeutic potential.

Author

Mirza, Bilal, Croley, Courtney R., Ahmad, Maha, Pumarol, Joshua, Das, Niranjan, Sethi, Gautam, and Bishayee, Anupam

Subjects
MANGO, MANGIFERA, ESSENTIAL amino acids, VITAMIN A
Abstract

Mangifera indica L. (mango), a long-living evergreen plant belonging to the Anacardiaceae family, has been cultivated for thousands of years in the Indian subcontinent for its excellent fruits which represent a rich source of fiber, vitamin A and C, essential amino acids, and a plethora of phytochemicals. M. indica is extensively used in various traditional systems of medicine to prevent and treat several diseases. The health-promoting and disease-preventing effects of M. indica are attributed to a number of bioactive phytochemicals, including polyphenols, terpenoids, carotenoid and phytosterols, found in the leaf, bark, edible flesh, peel, and seed. M. indica has been shown to exhibit various biological and pharmacological activities, such as antioxidant, anti-inflammatory, immunomodulatory, antimicrobial, antidiabetic, antiobesity, and anticancer effects. There are a few studies conducted that have indicated the nontoxic nature of mango constituents. However, while there are numerous individual studies investigating anticancer effects of various constituents from the mango tree, an up-to-date, comprehensive and critical review of available research data has not been performed according to our knowledge. The purpose of this review is to present a comprehensive and critical evaluation of cancer preventive and anticancer therapeutic potential of M. indica and its phytochemicals with special focus on the cellular and molecular mechanisms of action. The bioavailability, pharmacokinetics, and safety profile of individual phytocomponents of M. indica as well as current limitations, challenges, and future directions of research have also been discussed. [ABSTRACT FROM AUTHOR]

Published
2021
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25. Synthèse sélective d'hétérocycles silylés par silapalladation intramoléculaire d'alcynes

Author

Durandetti, Muriel, Ahmad, Maha, Maddaluno, Jacques, Durandetti, Muriel, Chimie Organique et Bioorganique : Réactivité et Analyse (COBRA), Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie Organique Fine (IRCOF), Université de Rouen Normandie (UNIROUEN), and Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[CHIM.ORGA]Chemical Sciences/Organic chemistry, [CHIM.ORGA] Chemical Sciences/Organic chemistry, ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2018

26. Efficient Access to Disilylated Olefins by Intramolecular Silapalladation of Alkyne

Author

Durandetti, Muriel, Ahmad, Maha, Maddaluno, Jacques, Chimie Organique et Bioorganique : Réactivité et Analyse (COBRA), Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie Organique Fine (IRCOF), Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), and Durandetti, Muriel

Subjects
[CHIM.ORGA]Chemical Sciences/Organic chemistry, [CHIM.ORGA] Chemical Sciences/Organic chemistry, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2017

27. Dentists Knowledge and Attitude Towards Tobacco Cessation Counseling.

Author

Kiyani, Amber, Ahmad, Rabia, Ahmad, Maha, and Tariq, Mahreen

Subjects
ATTITUDE (Psychology), NICOTINE replacement therapy, COUNSELING, MOUTH, DENTISTS, DENTAL technicians
Abstract

OBJECTIVE: Dentists play a critical role in identifying tobacco use in the oral cavity and counseling patients against the hazards associated with this habit. The objective of this study was to determine the current practices of dentists in Islamabad/Rawalpindi towards tobacco counseling, and their reasons, if any, for avoiding such counseling. METHODOLOGY: One hundred and five self-administered questionnaires were distributed in private dental clinics of Islamabad and Rawalpindi. The questions were designed to analyze tobacco history of dentists, their practices in acquiring appropriate histories, their skill in counseling, and reasons for deferring tobacco counseling. The information was recorded on SPSS version 20 and presented as frequencies and percentages. Results: Out of the 105 questionnaires, only 97 were returned. About 81% (n=79) dentists asked male patients about tobacco use, only 48% (n=47) routinely asked female patients. Approximately 67% (n=65) dentists counsel their patients consistently, while 96% (n=93) counseled only after an oral pathology was discovered. Common reasons for avoiding counseling included belief that the smoking habit was the patient's business, 35.3% (n=23), fear of offending the patient 21.5% (n=14), fear of negative impact on practice 1.5% (n=1) and the dentists own smoking habit 4.6% (n=3). Majority of the dentists were aware of nicotine replacement therapies but still believed that their background training was insufficient for counseling. CONCLUSION: The majority of Pakistani dentists have adequate knowledge and positive attitudes towards tobacco cessation counseling. Fear of intervening in patient's personal matter appears to be most common reason for not counseling. [ABSTRACT FROM AUTHOR]

Published
2020
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29. Distortions to Agricultural Incentives in Light of Trade Policy : A Study on Pakistan

Author

Ejaz, Neelam and Ahmad, Maha

Subjects
TRADE LIBERALIZATION, AGRICULTURE, TAX EXEMPTIONS, WHEAT, FOREIGN DIRECT INVESTMENT, SUGAR, NON-TARIFF BARRIERS, REGULATORY ORDER, COMMODITIES, AGRICULTURAL PRODUCTIVITY, TARIFF STRUCTURE, DISTORTIONS, COTTON, POULTRY, RICE, FERTILIZER, CUSTOMS DUTY, SUPPORT PRICE, TRADE POLICY
Abstract

Agriculture forms the backbone of Pakistan’s economy. Despite the fact that the share of agriculture in the GDP has declined over the years, the sector continues to play an important role in the socio-economic structure of the country. About 60 percent of the population lives in rural areas of Pakistan, the majority of which is dependent on agricultural activities for their livelihood. Yield growth for most crops and livestock products in Pakistan has stagnated and become more variable in recent years. Furthermore, sizable gaps persist between achievable and realized productivity in most crops, and diversification and a move to higher value-added agricultural commodities has been limited, predominantly in the crops sector.

Published
2017

30. COST-BASED ANALYSIS FOR HIGH SEVERITY LOCATIONS OF TRAFFIC ACCIDENTS IN JORDAN

Author

Hesham S. Ahmad*, Maha D. Ayoush, Subhi M. Bazlamit

Subjects
Traffic accidents, Traffic safety, Severity of accidents, Accident location, Economic cost
Abstract

Traffic accidents constitute a serious cause of death and injuries in the entire world. They are also considered as a major cause of financial and physical losses. This causes traffic accidents to have considerable threats and negative impacts on the entire society. In the past few years, a large growth in the mobility of vehicles in Jordan has contributed to an increase in traffic congestion as well as in the number of traffic accidents. Although previous studies have indicated that risky behavioral characteristics of drivers is the main reason behind traffic accidents in Jordan, the number and severity of accidents can be mitigated and road safety can be improved through better design and engineering of road systems. This study aims at investigating and analyzing traffic areas in the Governorate of Madaba in Jordan that can be considered as having low level of safety and so causing major negative impact on people’s health and emotions. Data that shows severity, location and number of people and vehicles involved in each traffic accident in Madaba Governorate for the period from 2011 until 2013 was collected from the databases of the Pubic Security Department (PSD) in Jordan and analyzed. Since the identification of accident location is a critical element in accidents’ analysis, accidents were located on road maps. Sites with large number of accidents were precisely investigated and studied in terms of the severity of accidents, the expected economic loss and the problems causing the accidents in these sites. This study will produce a number of practical solutions aim at improving the traffic safety and reducing the frequency and severity of traffic accidents and the associated economic and social costs in the governorate. This research will constitute a model for further studies that can be conducted in other areas in Jordan and in the world.

Published
2016
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31. Internal Occipital Crest Misalignment with Internal Occipital Protuberance: A Case Report of Posterior Cranial Fossa Anatomic Variations

Author

Kim, Jae Ha and Ahmad, Maha

Subjects
Article Subject, education, otorhinolaryngologic diseases
Abstract

During gross anatomy head and neck laboratory session, one dissection group observed an abnormal anatomic variation in the posterior cranial fossa of a 94-year-old male cadaver. The internal occipital crest was not aligned with internal occipital protuberance and groove for superior sagittal sinus. It seemed that the internal occipital protuberance was shifted significantly to the right side. As a result the skull was overly stretched in order to connect with the internal occipital ridge. These internal skull variations of occipital bone landmarks can influence the location of adjacent dural venous sinuses and possibly influence cerebrospinal fluid flow. Similar anatomical anomalies have been attributed to presence of hydrocephalus and abnormalities in cisterna magna.

Published
2016
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35. Intramolecular Carbolithiation of Heterosubstituted Alkynes

Author

Ahmad, Maha, Lhermet, Rudy, Durandetti, Muriel, Maddaluno, Jacques, Chimie Organique et Bioorganique : Réactivité et Analyse (COBRA), Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie Organique Fine (IRCOF), Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Durandetti, Muriel, and Fédération Gay-Lussac

Subjects
[CHIM.ORGA]Chemical Sciences/Organic chemistry, [CHIM.ORGA] Chemical Sciences/Organic chemistry, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2015

38. Forging C–C Bonds with Hindered Nucleophiles and Carbonyl Electrophiles: Reactivity and Selectivity of Allylic Tin Reagents/n-BuLi

Author

Cormier, Morgan, Ahmad, Maha, Maddaluno, Jacques, and De Paolis, Michaël

Abstract

Under activation with n-BuLi, trialkylstannanes containing crotyl-, geranyl-, and phenyldienylmethyl appendages were reacted with efficiency and selectivity to various ketone and enone electrophiles with low reactivity. The straightforward process gives access to tertiary alcohols that are vicinal to quaternary carbons. With α,α′-dimethoxy-γ-pyrone, on the other hand, the grafting of a dienyl side chain was effected to prepare dienyl α′-methoxy-γ-pyrone in a stereo- and regioselective and convergent manner. Furthermore, the advantages of this route were highlighted for the preparation of organolithium species at low temperature with the formation of a minimum amount of salts. Synthetic manipulations were demonstrated to illustrate the potential of the chemistry for constructing acyclic and cyclic terpene scaffolds.

Published
2024
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45. Experimental investigation and numerical simulation of a prototype cell using light wallboards coupling Vacuum Isolation Panels (VIP) and Phase Change Materials (PCM)

Author

Ahmad, Maha, Bontemps, André, Sallée, Hébert, Quénard, Daniel, Laboratoire des Écoulements Géophysiques et Industriels [Grenoble] (LEGI), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Centre Scientifique et Technique du Bâtiment (CSTB), Génome, Population, Interactions, Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Science et Ingénierie des Matériaux et Procédés (SIMaP), and Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Institut National Polytechnique de Grenoble (INPG)

Subjects
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph], [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph]
Published
2006

46. "Augmented Miniatures: Misconception?".

Author

Ahmad, Maha Javeria

Subjects
*MINIATURE painting, *MINIATURE art, *IRANIAN painting, *PAINTING techniques
Abstract

The art of miniature painting flourished from the 13th to the 16th Century in the Middle East, currently known as Iran. By the 15th century, Persian style had progressed, exemplified by firm lines, strong colours, and a lot of detail. Behzad was the greatest advocate of this era. He brought about amalgamation in Persian painting. Balance was an important principle in Persian art. It was richly detailed with mythological and religious themes. The techniques are broadly analogous to the Western and Byzantine. Persian miniatures were also inspired by Chinese art. Mughal miniature was contemporary to the Persian civilization from which they had been instigated to learn art. The initiative step was taken at the time of Humayun's service when two artists from Persia, Mir Sayyad Ali and Khawaja Abdus Samad joined him. [ABSTRACT FROM AUTHOR]

Published
2017

47. Etude expérimentale et simulation numérique du comportement thermique de cellules-test ayant des parois couplant Matériaux à Changement de Phase (MCP) et Super-Isolant (VIP)

Author

Ahmad, Maha, Bontemps, André, Sallée, Hébert, Quénard, Daniel, Laboratoire des Écoulements Géophysiques et Industriels [Grenoble] (LEGI), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Centre Scientifique et Technique du Bâtiment (CSTB), Génome, Population, Interactions, Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Science et Ingénierie des Matériaux et Procédés (SIMaP), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph], [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph]
Abstract

L'utilisation de Matériaux à Changements de Phase (MCP) dans le bâtiment permet d'augmenter l'inertie thermique tout en gardant de faibles épaisseurs de parois. Le couplage avec un super-isolant permet d'augmenter encore cette inertie en limitant considérablement les pertes thermiques. Dans ce travail, on teste le comportement thermique d'une cellule ayant des parois associant MCP et VIP en la comparant à une cellule ayant des parois ne comportant pas de MCP. Les résultats obtenus démontrent la validité du concept. Une simulation numérique permet de prévoir le comportement de ces cellules dans un environnement climatique réel.

Published
2005

48. Experimental study and numerical simulation of thermal behavious of Test-Cells using Light Wallboards Coupling PCM and VIP

Author

Ahmad, Maha, Bontemps, André, Sallée, Hébert, Quénard, Daniel, Centre Scientifique et Technique du Bâtiment (CSTB), Laboratoire des Écoulements Géophysiques et Industriels [Grenoble] (LEGI), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Génome, Population, Interactions, Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Science et Ingénierie des Matériaux et Procédés (SIMaP), and Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Institut National Polytechnique de Grenoble (INPG)

Subjects
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph], [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph]
Published
2005

49. Etude expérimentale de la réponse en température de parois contenant un matériau à changement de phase

Author

Ahmad, Maha, Chambouleyron, Mathieu, Bontemps, André, Sallée, Hébert, Quénard, Daniel, Les amis du Marais du Viguerat, Laboratoire des Écoulements Géophysiques et Industriels [Grenoble] (LEGI), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Centre Scientifique et Technique du Bâtiment (CSTB), Génome, Population, Interactions, Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Science et Ingénierie des Matériaux et Procédés (SIMaP), and Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Institut National Polytechnique de Grenoble (INPG)

Subjects
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph], [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph]
Published
2004

50. Nouveaux composants pour la gestion énergétique de l'enveloppe légère des bâtiments. Couplage matériaux à changement de phase, super isolation, apport solaire

Author

Quénard, Daniel, Ahmad, Maha, Sallée, Hébert, Bontemps, André, Génome, Population, Interactions, Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Centre Scientifique et Technique du Bâtiment (CSTB), Science et Ingénierie des Matériaux et Procédés (SIMaP), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Écoulements Géophysiques et Industriels [Grenoble] (LEGI), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)

Subjects
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph], [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph]
Published
2004

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