167 research outputs found
Yaa Rabbi Kanaŋ Tuŋ n-Faŋ Bulu: My God, Don't Leave us by Ourselves (a poem by Sitokoto Dabo)
No full textThe entire manuscript is available for download as a PDF file(s). Higher-resolution images may be available upon request. For technical assistance, please contact [email protected]. Fieldwork Team: Dr. Fallou Ngom (Pricipal Investigator; Director, African Studies Center), Ablaye Diakité (Local Project Manager), Mr. Ibrahima Yaffa (General Field Facilitator), and Ibrahima Ngom (photographer). Technical Team: Professor Fallou Ngom (Principal Investigator, Project Director and former Director of the African Studies Center at Boston University)), and Eleni Castro (Technical Lead, BU Libraries). This collection of Mandinka Ajami materials is copied as part of the African Studies Center’s African Ajami Library. This is a joint project between BU and the West African Research Center (WARC), funded by the British Library/Arcadia Endangered Archives Programme. Access Condition and Copyright: These materials are subject to copyright and are distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License, which permits non-commercial use, distribution, and reproduction in any medium, provided the original author and source are fully cited using the information below. For use, distribution or reproduction beyond these terms, contact Professor Fallou Ngom ([email protected]). Citation: Materials in this web edition should be cited as: Ngom, Fallou, Castro, Eleni, & Diakité, Ablaye. (2018). African Ajami Library: EAP 1042. Digital Preservation of Mandinka Ajami Materials of Casamance, Senegal. Boston: Boston University Libraries: http://hdl.handle.net/2144/27112. For Inquiries: please contact Professor Fallou Ngom ([email protected]). For technical assistance, please contact [email protected] / Custodial history: The current manuscript owner inherited the collection from his father, Arfang Nouha Sylla. His father was born in Oudoucar where he received his Islamic education, and served as a Quranic teacher until his death.The manuscript is a copy of a Mandinka Ajami poem authored by Arfang Sitokoto Dabo, also known as Ababacar Dabo, the most famous Mandinka Ajami poet of Senegambia. The poem enjoins people to cultivate moral virtues (especially respect and solidarity) and asks husbands and wives to live up to their their respective obligations
Sitookoto Daabo la Suukuwo: A Poem by Sitokoto Dabo (Arfang Bajinka: Open your ears!)
No full textThe entire manuscript is available for download as a PDF file(s). Higher-resolution images may be available upon request. For technical assistance, please contact [email protected]. Fieldwork Team: Dr. Fallou Ngom (Pricipal Investigator; Director, African Studies Center), Ablaye Diakité (Local Project Manager), Mr. Ibrahima Yaffa (General Field Facilitator), and Ibrahima Ngom (photographer). Technical Team: Professor Fallou Ngom (Principal Investigator, Project Director and former Director of the African Studies Center at Boston University)), and Eleni Castro (Technical Lead, BU Libraries). This collection of Mandinka Ajami materials is copied as part of the African Studies Center’s African Ajami Library. This is a joint project between BU and the West African Research Center (WARC), funded by the British Library/Arcadia Endangered Archives Programme. Access Condition and Copyright: These materials are subject to copyright and are distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License, which permits non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited. For use, distribution or reproduction beyond these terms, contact Professor Fallou Ngom ([email protected]). Citation: Materials in this web edition should be cited as: Ngom, Fallou, Castro, Eleni, & Diakité, Ablaye. (2018). African Ajami Library: EAP 1042. Digital Preservation of Mandinka Ajami Materials of Casamance, Senegal. Boston: Boston University Libraries: http://hdl.handle.net/2144/27112. For Inquiries: please contact Professor Fallou Ngom ([email protected]). For technical assistance, please contact [email protected] / Custodial history: The owner recieved it in 1983 from his brother, Kabirou Bayo. He had an advanced Islamic education and served as a marabout (religious leader and healer) and Quranic teacher.The document is a copy of a Mandinka Ajami poem written by the famous Mandinka poet, Aboubacar Dabo, who is popularly known as Sitokoto Dabo. The poem deals with Islamic inheritance rules, explains the notion of inheritance (Mandinka: Keetaala) and discusses the rights and shares of each heir. The poem is meant to be chanted and recited for wider dissemination of its content
Mandinkakaŋ Suukuwo: Mandinka Ajami Devotional Poetry
No full textThe entire manuscript is available for download as a PDF file(s). Higher-resolution images may be available upon request. For technical assistance, please contact [email protected]. Fieldwork Team: Dr. Fallou Ngom (Pricipal Investigator; Director, African Studies Center), Ablaye Diakité (Local Project Manager), Mr. Ibrahima Yaffa (General Field Facilitator), and Ibrahima Ngom (photographer). Technical Team: Professor Fallou Ngom (Principal Investigator, Project Director and former Director of the African Studies Center at Boston University)), and Eleni Castro (Technical Lead, BU Libraries). This collection of Mandinka Ajami materials is copied as part of the African Studies Center’s African Ajami Library. This is a joint project between BU and the West African Research Center (WARC), funded by the British Library/Arcadia Endangered Archives Programme. Access Condition and Copyright: These materials are subject to copyright and are distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License, which permits non-commercial use, distribution, and reproduction in any medium, provided the original author and source are fully cited using the information below. For use, distribution or reproduction beyond these terms, contact Professor Fallou Ngom ([email protected]). Citation: Materials in this web edition should be cited as: Ngom, Fallou, Castro, Eleni, & Diakité, Ablaye. (2018). African Ajami Library: EAP 1042. Digital Preservation of Mandinka Ajami Materials of Casamance, Senegal. Boston: Boston University Libraries: http://hdl.handle.net/2144/27112. For Inquiries: please contact Professor Fallou Ngom ([email protected]). For technical assistance, please contact [email protected] / Custodial history: The owner wrote the poem when he was a student.The short Mandinka Ajami manuscript is a devotional poem that celebrates Prophet Muḥammad, his companions, and the Abrahamic prophets. It also tells the fall from grace of Iblīs (Satan). The author was inspired by the work of the famous Mandinka scholar called Alpha Diadji
Sitookoto Daabo la Suukuwolu: Mandinka Ajami Poems by Sitokoto Dabo
No full textThe entire manuscript is available for download as a PDF file(s). Higher-resolution images may be available upon request. For technical assistance, please contact [email protected]. Fieldwork Team: Dr. Fallou Ngom (Pricipal Investigator; Director, African Studies Center), Ablaye Diakité (Local Project Manager), Mr. Ibrahima Yaffa (General Field Facilitator), and Ibrahima Ngom (photographer). Technical Team: Professor Fallou Ngom (Principle Investigator, Project Director and former Director of the African Studies Center at Boston University), and Eleni Castro (Technical Lead, BU Libraries). This collection of Mandinka Ajami materials is copied as part of the African Studies Center’s African Ajami Library. This is a joint project between BU and the West African Research Center (WARC), funded by the British Library/Arcadia Endangered Archives Programme. Access Condition and Copyright: These materials are subject to copyright and are distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License, which permits non-commercial use, distribution, and reproduction in any medium, provided the original author and source are fully cited using the information below. For use, distribution or reproduction beyond these terms, contact Professor Fallou Ngom ([email protected]). Citation: Materials in this web edition should be cited as: Ngom, Fallou, Castro, Eleni, & Diakité, Ablaye. (2018). African Ajami Library: EAP 1042. Digital Preservation of Mandinka Ajami Materials of Casamance, Senegal. Boston: Boston University Libraries: http://hdl.handle.net/2144/27112. For Inquiries: please contact Professor Fallou Ngom ([email protected]). For technical assistance, please contact [email protected] / Custodial history: The owner copied them from a friend.Contains a collection of several recent copies of poems by Arfang Sitokoto Dabo (1857-1971), the most famous Mandinka Ajami poet of Senegambia. The poems reflect Dabo’s curriculum vita (his initial Islamic education and subsequent pursuit of advanced knowledge) that explains why he became the most celebrated poet of the Mandinka people. He was born in Oudoucar, in the region of Sedhiou, and received part of his advanced Islamic education in Diao-Soukouto, where he spent many years. Afterwards, he moved to Brikama in The Gambia, where he lived until his death. He was an important Mandinka poet and thinker who produced numerous poems dealing with religious and non-religious subjects in Mandinka Ajami. His poems are widely known in Senegambian Mandinka communities
Araabukaŋ aniŋ Mandinkakaŋ Suukuwoolu: Collection of Arabic and Mandinka Poems
No full textThe entire manuscript is available for download as a PDF file(s). Higher-resolution images may be available upon request. For technical assistance, please contact [email protected]. Fieldwork Team: Dr. Fallou Ngom (Pricipal Investigator; Director, African Studies Center), Ablaye Diakité (Local Project Manager), Mr. Ibrahima Yaffa (General Field Facilitator), and Ibrahima Ngom (photographer). Technical Team: Professor Fallou Ngom (Principal Investigator; Project Director and former Director of the African Studies Center at Boston University)), and Eleni Castro (Technical Lead, BU Libraries). This collection of Mandinka Ajami materials is copied as part of the African Studies Center’s African Ajami Library. This is a joint project between BU and the West African Research Center (WARC), funded by the British Library/Arcadia Endangered Archives Programme. Access Condition and Copyright: These materials are subject to copyright and are distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License, which permits non-commercial use, distribution, and reproduction in any medium, provided the original author and source are fully cited using the information below. For use, distribution or reproduction beyond these terms, contact Professor Fallou Ngom ([email protected]). Citation: Materials in this web edition should be cited as: Ngom, Fallou, Castro, Eleni, & Diakité, Ablaye. (2018). African Ajami Library: EAP 1042. Digital Preservation of Mandinka Ajami Materials of Casamance, Senegal. Boston: Boston University Libraries: http://hdl.handle.net/2144/27112. For Inquiries: please contact Professor Fallou Ngom ([email protected]). For technical assistance, please contact [email protected] / Custodial history: The current manuscript owner inherited the collection from his father, Arfang Nouha Sylla. His father was born in Oudoucar where he received his Islamic education, and served as a Quranic teacher until his death.Contains a collection of several short devotional poems written in Arabic and Mandinka Ajami. Included within are copies of poems by Sitokoto Dabo, the most famous Mandinka Ajami poet of Senegambia. The poets praise Prophet Muḥammad, emphasize the value of education, and pray for people
Sitookoto Daabo la Suukuwo: A Poem by Sitokoto Dabo (Yaa Allah, Yaa Rahman, Yaa Rahim)
No full textThe entire manuscript is available for download as a PDF file(s). Higher-resolution images may be available upon request. For technical assistance, please contact [email protected]. Fieldwork Team: Dr. Fallou Ngom (Pricipal Investigator; Director, African Studies Center), Ablaye Diakité (Local Project Manager), Mr. Ibrahima Yaffa (General Field Facilitator), and Ibrahima Ngom (photographer). Technical Team: Professor Fallou Ngom (Principal Investigator; Project Director and former Director of the African Studies Center at Boston University)), and Eleni Castro (Technical Lead, BU Libraries). This collection of Mandinka Ajami materials is copied as part of the African Studies Center’s African Ajami Library. This is a joint project between BU and the West African Research Center (WARC), funded by the British Library/Arcadia Endangered Archives Programme. Access Condition and Copyright: These materials are subject to copyright and are distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License, which permits non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited. For use, distribution or reproduction beyond these terms, contact Professor Fallou Ngom ([email protected]). Citation: Materials in this web edition should be cited as: Ngom, Fallou, Castro, Eleni, & Diakité, Ablaye. (2018). African Ajami Library: EAP 1042. Digital Preservation of Mandinka Ajami Materials of Casamance, Senegal. Boston: Boston University Libraries: http://hdl.handle.net/2144/27112. For Inquiries: please contact Professor Fallou Ngom ([email protected]). For technical assistance, please contact [email protected] / Custodial history: The owner inherited it from his father's young brother, Ablaye Bayo. He had an advanced Islamic education and served as a Quranic teacher and a marabout (religious leader and healer) in the village of Kignini in Kolda.The manuscript is a copy of the original written in Mandinka Ajami by Sitokoto Dabo, one of the most famous Mandinka Ajami poets of Senegambia. The poem combines praises of God for His protection and mercy with prayers for peace, health, long life, and protection from Satan, among other things
Revised self-consistent continuum solvation in electronic-structure calculations
No full textThe following article has been accepted by The Journal of Chemical Physics. After it is published, it will be found at http://link.aip.org/link/?jcp/International audienceThe solvation model proposed by Fattebert and Gygi [Journal of Computational Chemistry 23, 662 (2002)] and Scherlis et al. [Journal of Chemical Physics 124, 074103 (2006)] is reformulated, overcoming some of the numerical limitations encountered and extending its range of applicability. We first recast the problem in terms of induced polarization charges that act as a direct mapping of the self-consistent continuum dielectric; this allows to define a functional form for the dielectric that is well behaved both in the high-density region of the nuclear charges and in the low-density region where the electronic wavefunctions decay into the solvent. Second, we outline an iterative procedure to solve the Poisson equation for the quantum fragment embedded in the solvent that does not require multi-grid algorithms, is trivially parallel, and can be applied to any Bravais crystallographic system. Last, we capture some of the non-electrostatic or cavitation terms via a combined use of the quantum volume and quantum surface [Physical Review Letters 94, 145501 (2005)] of the solute. The resulting self-consistent continuum solvation (SCCS) model provides a very effective and compact fit of computational and experimental data, whereby the static dielectric constant of the solvent and one parameter allow to fit the electrostatic energy provided by the PCM model with a mean absolute error of 0.3 kcal/mol on a set of 240 neutral solutes. Two parameters allow to fit experimental solvation energies on the same set with a mean absolute error of 1.3 kcal/mol. A detailed analysis of these results, broken down along different classes of chemical compounds, shows that several classes of organic compounds display very high accuracy, with solvation energies in error of 0.3-0.4 kcal/mol, whereby larger discrepancies are mostly limited to self-dissociating species and strong hydrogen-bond forming compounds
Images of manuscript owner Almamo Dabo
No full textFor technical assistance, please contact [email protected]. Fieldwork Team: Dr. Fallou Ngom (Pricipal Investigator; Director, African Studies Center), Ablaye Diakité (Local Project Manager), Mr. Ibrahima Yaffa (General Field Facilitator), and Ibrahima Ngom (photographer). Technical Team: Professor Fallou Ngom (Principle Investigator, Project Director and former Director of the African Studies Center at Boston University), and Eleni Castro (Technical Lead, BU Libraries). This collection of Mandinka Ajami materials is copied as part of the African Studies Center’s African Ajami Library. This is a joint project between BU and the West African Research Center (WARC), funded by the British Library/Arcadia Endangered Archives Programme. Access Condition and Copyright: These materials are subject to copyright and are distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License, which permits non-commercial use, distribution, and reproduction in any medium, provided the original author and source are fully cited using the information below. For use, distribution or reproduction beyond these terms, contact Professor Fallou Ngom ([email protected]). Citation: Materials in this web edition should be cited as: Ngom, Fallou, Castro, Eleni, & Diakité, Ablaye. (2018). African Ajami Library: EAP 1042. Digital Preservation of Mandinka Ajami Materials of Casamance, Senegal. Boston: Boston University Libraries: http://hdl.handle.net/2144/27112. For Inquiries: Please contact Professor Fallou Ngom ([email protected]).Biography: Almamo Dabo was born in Djidinka in the region of Sedhiou, where his family relocated from Kerracounda. The family later returned to Kerracounda. He received an advanced Islamic education, and now serves as a young Imam and Quranic teacher.Images taken during interview with manuscript owner Almamo Dabo (right) and Ibrahima Yaffa (left) in Kerracounda, Sedhiou, Senegal, for the manuscript digitization work done in October 2018
Suukuwo: Mandinka Ajami Poetry
No full textThe entire manuscript is available for download as a PDF file(s). Higher-resolution images may be available upon request. For technical assistance, please contact [email protected]. Fieldwork Team: Dr. Fallou Ngom (Pricipal Investigator; Director, African Studies Center), Ablaye Diakité (Local Project Manager), Mr. Ibrahima Yaffa (General Field Facilitator), and Ibrahima Ngom (photographer). Technical Team: Professor Fallou Ngom (Principle Investigator, Project Director and former Director of the African Studies Center at Boston University), and Eleni Castro (Technical Lead, BU Libraries). This collection of Mandinka Ajami materials is copied as part of the African Studies Center’s African Ajami Library. This is a joint project between BU and the West African Research Center (WARC), funded by the British Library/Arcadia Endangered Archives Programme. Access Condition and Copyright: These materials are subject to copyright and are distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License, which permits non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited. For use, distribution or reproduction beyond these terms, contact Professor Fallou Ngom ([email protected]). Citation: Materials in this web edition should be cited as: Ngom, Fallou, Castro, Eleni, & Diakité, Ablaye. (2018). African Ajami Library: EAP 1042. Digital Preservation of Mandinka Ajami Materials of Casamance, Senegal. Boston: Boston University Libraries: http://hdl.handle.net/2144/27112. For Inquiries: please contact Professor Fallou Ngom ([email protected]). For technical assistance, please contact [email protected] / Custodial history: The owner of the manuscript inherited it from his father, Kalifa Cisse. His father had an advanced Islamic education and served as an Imam and a Quranic teacher in Sankorla-Sorgo in Guinea- Bissau where he lived until his death.The manuscript is a copy of the original written in Mandinka Ajami by Arfang Boubacar Dabo, also known as Arfang Sitokoto Dabo. Sitokoto Dabo is the most famous Mandinka Ajami poet in Senegambia. His poems are widely known and chanted in Mandinka communities in the region. He was born in Oudoucar in the region of Sedhiou and spent many years in the town of Diao-Soukoutoto before relocating to The Gambia, where he lived until his death. The poem gives tribute to God for His glory and mercy and prays for the faithful. The end of the poem includes a personal note with the French Western calendar date structure ‘le 31 juillet 1996’ (July 31, 1996), written in Mandinka Ajami and the equivalent date in the Mandinka calendar is also provided. There is an additional page in this collection that is not part of the poem. It is a prayer for protection from witchcraft
Towards first-principles electrochemistry
No full textThesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2008.Includes bibliographical references (p. 143-151).This doctoral dissertation presents a comprehensive computational approach to describe quantum mechanical systems embedded in complex ionic media, primarily focusing on the first-principles representation of catalytic electrodes under electrochemical conditions. The accurate electrostatic description of electrified metal-solution interfaces represents a persistent challenge for ab-initio simulations and an essential requisite for predicting the electrical response of electrochemical convertors-i.e., the correspondence between the macroscopic voltage and the microscopic interfacial charge distribution. The approach consists of controlling the electrode voltage via its conjugate extensive variable, namely, the charge of the system. As a preliminary to the study of electrified interfaces in ionic media, we analyze charged slabs in vacuum subject to periodic boundary conditions. We show that the corrective potential (defined as the difference between the exact open-boundary potential and the periodic potential obtained from a Fourier transform) varies smoothly over space, allowing for its determination on a coarse mesh using optimized electrostatic solvers. Because this scheme takes into account exact open boundary conditions, its performance is considerably superior to that of conventional corrective methods. Extending this computational scheme, we present an efficient approach to model electrochemical systems under realistic conditions, based on a first-principles description of the interface region and on a continuum representation of the ionic solvent.(cont.) We demonstrate that the ionicsolution contribution to the electrostatic potential-the ionic solvent reaction field--can be computed independently at low cost simultaneously using fast Fourier transforms and multigrid techniques, and highlight the importance of adopting adequate electrochemical boundary conditions to correctly predict the electrical response of electrode-electrolyte interfaces. In order to probe and validate the electrochemical model, we study the vibrational Stark effect-i.e., the influence of the applied voltage on the vibrational properties-for carbon monoxide adsorbed on transition metal surfaces, a phenomenon whose description requires an accurate representation of the interfacial electric field. We start out the analysis by examining the vibrational properties of CO adsorbed on clean and ruthenium-covered platinum substrates. The calculated C-O stretching frequencies are found to be in excellent agreement with experimental measurements despite the frequent qualitative failures of local and semilocal exchange-correlation functionals in predicting adsorption energies for CO on transition metals. We then introduce an orbital-resolved force analysis to clarify the electronic origins of the C-O red shifts, and present a sensitivity analysis to assess the influence the HOMO and LUMO hybridizations on the calculated frequencies, thereby establishing the remarkable accuracy of conventional density-functional theory methods in determining the vibrational properties of adsorbed CO. Based on these results, we apply the electrochemical model to provide the first comprehensive ab-initio description of the vibrational Stark effect for CO on transition metal surfaces, finding excellent agreement with spectroscopic measurements.(cont.) As related projects, we have implemented a molecular-dynamics algorithm for metallic systems and developed a self-interaction correction method to rectify the tendency of density-functional theory calculations to overestimate binding energies. The present computational electrochemistry toolkit open promising perspectives for the application of first-principles methods to assist the microstructural engineering of electrochemical convertors.Ismaila Dabo.Ph.D
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