Cocoa in West Africa Report
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Using Macaulay2 Effectively in Practice
Using Macaulay2 effectively in practice Mike Stillman ([email protected]) Department of Mathematics Cornell 22 July 2019 / IMA Sage/M2 Macaulay2: at a glance Project started in 1993, Dan Grayson and Mike Stillman. Open source. Key computations: Gr¨obnerbases, free resolutions, Hilbert functions and applications of these. Rings, Modules and Chain Complexes are first class objects. Language which is comfortable for mathematicians, yet powerful, expressive, and fun to program in. Now a community project Journal of Software for Algebra and Geometry (started in 2009. Now we handle: Macaulay2, Singular, Gap, Cocoa) (original editors: Greg Smith, Amelia Taylor). Strong community: including about 2 workshops per year. User contributed packages (about 200 so far). Each has doc and tests, is tested every night, and is distributed with M2. Lots of activity Over 2000 math papers refer to Macaulay2. History: 1976-1978 (My undergrad years at Urbana) E. Graham Evans: asked me to write a program to compute syzygies, from Hilbert's algorithm from 1890. Really didn't work on computers of the day (probably might still be an issue!). Instead: Did computation degree by degree, no finishing condition. Used Buchsbaum-Eisenbud \What makes a complex exact" (by hand!) to see if the resulting complex was exact. Winfried Bruns was there too. Very exciting time. History: 1978-1983 (My grad years, with Dave Bayer, at Harvard) History: 1978-1983 (My grad years, with Dave Bayer, at Harvard) I tried to do \real mathematics" but Dave Bayer (basically) rediscovered Groebner bases, and saw that they gave an algorithm for computing all syzygies. I got excited, dropped what I was doing, and we programmed (in Pascal), in less than one week, the first version of what would be Macaulay. -
Is Yearly Rainfall Amount a Good Predictor for Agriculture Viability In
Is yearly rainfall amount a good predictor for agriculture viability in drylands? Modelling traditional cultivation practices of drought-resistant crops: an ethnographic approach for the study of long-term resilience and sustainability Abel Ruiz-Giralt1,2, Stefano Biagetti1,2,3, Marco Madella1,2,3,4, Carla Lancelotti1,2* 1 CaSEs Research Group, Department of Humanities, Universitat Popmeu Fabra, Barcelona, Spain 2 Institución Milá y Fontanals, CSIC, Barcelona, Spain 3 School of Geography, Archaeology and Environmental Studies (GAES), University of the Witwatersrand, Johannesburg, South Africa 4 ICREA, Barcelona, Spain * corresponding author: [email protected] Abstract FAO guidelines on water requirements for plant growth in the absence of irrigation, stipulate that cultivation is not viable in areas with less than 450mm of annual rainfall. Indeed, in all maps of agricultural land use, most hyper-arid, arid, and semi-arid drylands are considered unproductive. Yet, modern societies in arid and semi-arid drylands still practice rainfed cultivation under regimes of much lower annual rainfall. This paper presents the results of ethnographic and cross-cultural investigations in the cultivation of Pearl millet, Finger millet and Sorghum, with a global perspective. We use published ethnographic material and novel data collected on the field to build and test models that display the interaction of ecological and geographic variables in explaining agricultural practices. The aim of this research is to show how rainfed agriculture is practised much more often, and in much more suitable areas, than normally reported. This holds the potential for the understanding of how these practices can play a pivotal role for long-term resilience and future sustainability of agricultural systems in drylands. -
Can Corporate Power Positively Transform Angola and Equatorial Guinea?
Can Corporate Power Positively Transform Angola and Equatorial Guinea? Published in Wayne Visser ed. Corporate Citizenship in Africa. Greenleaf Publications, UK, 2006. Authors: Jose A. Puppim de Oliveira Brazilian School of Public and Business Administration – EBAPE Getulio Vargas Foundation – FGV Praia de Botafogo 190, room 507 CEP: 22253-900, Rio de Janeiro - RJ, BRAZIL Phone: (55-21) 2559-5737 Fax: (55-21) 2559-5710 e-mail: [email protected] & Saleem H. Ali Rubenstein School of Environment and Natural Resources University of Vermont 153 S. Prospect St., Burlington VT, 05452, USA Ph: 802-656-0173 Fx: 802-656-8015 Email: [email protected] 1 ABSTRACT While there is considerable literature on the adverse effects of oil development on developing economies through “Dutch Disease” or “Resource Curse” hypotheses, studies have neglected to pose the question in terms of positive causal factors that certain kinds of oil development might produce. We do not dispute the potential for negative effects of certain kinds of oil development but rather propose that some of the negative causality can be managed and transformed to lead to positive outcomes. Using a comparative study of oil company behavior in Angola and Equatorial Guinea, the research detects three main factors that have affected the behavior of oil companies since the Earth Summit in 1992. First, there is a growing movement of corporate social responsibility in businesses due to changes in leadership and corporate culture. Second, the ‘globalization’ of environmental movements has affected the behavior of companies through threats of litigation and stakeholder action. Third, governments in Africa have increasingly become stricter in regulating companies for environmental and social issues due to a transformation of domestic norms and international requirements. -
1 Cacao Criollo
CACAO CRIOLLO: SU IMPORTANCIA PARA LA GASTRONOMÍA, EL TURISMO, CAMBIO CLIMÁTICO Y ALGUNAS PREPARACIONES A BASE DE SUS RESIDUOS Natali López Mejía1, Javier Alejandro Duarte Giraldo2, Jhan Carlos Nino Polo3, Yeimy Alexandra Rozo Betancourt4, Jhon Alejandro Huerfano Calderon5 y Juan Carlos Posso Gomez6 Revista de Institución 1Docente investigadora del programa de Tecnología en Gastronomía, Facultad de Turismo, Arte, Comunicación y Cultura, Universitaria Agustiniana, Ak. 86 #11b-95, Bogotá, Bogotá D.C., Patrimonio y Desarrollo Colombia, e-mail: [email protected]. 2Docente coordinador de alimentos y bebidas del programa de Tecnología en Gastronomía, Confederación Panamericana de Facultad de Arte, Comunicación y Cultura, Universitaria Agustiniana, Ak. 86 #11b-95, Bogotá, Escuelas de Bogotá D.C., Colombia, e-mail: [email protected] Hotelería, Gastronomía y 2Estudiante del programa de Tecnología en Gastronomía, Facultad de Arte, Comunicación y Turismo Cultura, Universitaria Agustiniana, Ak. 86 #11b-95, Bogotá, Bogotá D.C., Colombia, e-mail: (CONPEHT). [email protected] www.conpeht- 3Estudiante del programa de Tecnología en Gastronomía, Facultad de Arte, Comunicación y turpade.com Cultura, Universitaria Agustiniana, Ak. 86 #11b-95, Bogotá, Bogotá D.C., Colombia, e-mail: ISSN: 2448-6809 [email protected] Publicación 4Estudiante del programa de Tecnología en Gastronomía, Facultad de Arte, Comunicación y semestral Cultura, Universitaria Agustiniana, Ak. 86 #11b-95, Bogotá, Bogotá D.C., Colombia, -
Luis David Garcıa Puente
Luis David Garc´ıa Puente Department of Mathematics and Statistics (936) 294-1581 Sam Houston State University [email protected] Huntsville, TX 77341–2206 http://www.shsu.edu/ldg005/ Professional Preparation Universidad Nacional Autonoma´ de Mexico´ (UNAM) Mexico City, Mexico´ B.S. Mathematics (with Honors) 1999 Virginia Polytechnic Institute and State University Blacksburg, VA Ph.D. Mathematics 2004 – Advisor: Reinhard Laubenbacher – Dissertation: Algebraic Geometry of Bayesian Networks University of California, Berkeley Berkeley, CA Postdoctoral Fellow Summer 2004 – Mentor: Lior Pachter Mathematical Sciences Research Institute (MSRI) Berkeley, CA Postdoctoral Fellow Fall 2004 – Mentor: Bernd Sturmfels Texas A&M University College Station, TX Visiting Assistant Professor 2005 – 2007 – Mentor: Frank Sottile Appointments Colorado College Colorado Springs, CO Professor of Mathematics and Computer Science 2021 – Sam Houston State University Huntsville, TX Professor of Mathematics 2019 – 2021 Sam Houston State University Huntsville, TX Associate Department Chair Fall 2017 – 2021 Sam Houston State University Huntsville, TX Associate Professor of Mathematics 2013 – 2019 Statistical and Applied Mathematical Sciences Institute Research Triangle Park, NC SAMSI New Researcher fellowship Spring 2009 Sam Houston State University Huntsville, TX Assistant Professor of Mathematics 2007 – 2013 Virginia Bioinformatics Institute (Virginia Tech) Blacksburg, VA Graduate Research Assistant Spring 2004 Virginia Polytechnic Institute and State University Blacksburg, -
Exploración Y Colonización En Guinea Ecuatorial
Exploración y colonización en Guinea Ecuatorial Junio 2014 Francesc Sánchez Lobera Trabajo Final del Master de Estudios Históricos Tutor: Ferran Iniesta Universitat de Barcelona - 1 Índice 1. Introducción...................................................................................................................3 Hipótesis.........................................................................................................................4 Marco teórico y metodológico....................................................................................5 Exploraciones e imperialismo.....................................................................................7 Ideología para la conquista........................................................................................10 Científicos y aventureros...........................................................................................12 2. Imperialismo europeo a finales del XIX..................................................................18 Motivaciones: mercados, competencia y prestigio.................................................18 El reparto de África tras la Conferencia de Berlín.................................................20 3. Explorando Fernando Poo y el Muni......................................................................23 Los viajes de Manuel Iradier.....................................................................................26 Todo aquello que puso hacerse................................................................................31 -
Chocolatiers and Chocolate Experiences in Flanders & Brussels
Inspiration guide for trade Chocolatiers and Chocolate Experiences IN FLANDERS & BRUSSELS 1 We are not a country of chocolate. We are a country of chocolatiers. And chocolate experiences. INTRODUCTION Belgian chocolatiers are famous and appreciated the world over for their excellent craftmanship and sense of innovation. What makes Belgian chocolatiers so special? Where can visitors buy a box of genuine pralines to delight their friends and family when they go back home? Where can chocolate lovers go for a chocolate experience like a workshop, a tasting or pairing? Every day, people ask VISITFLANDERS in Belgium and abroad these questions and many more. To answer the most frequently asked questions, we have produced this brochure. It covers all the main aspects of chocolate and chocolate experiences in Flanders and Brussels. 2 Discover Flanders ................................................. 4 Chocolatiers and shops .........................................7 Chocolate museums ........................................... 33 Chocolate experiences: > Chocolate demonstrations (with tastings) .. 39 > Chocolate workshops ................................... 43 > Chocolate tastings ........................................ 49 > Chocolate pairings ........................................ 53 Chocolate events ................................................ 56 Tearooms, cafés and bars .................................. 59 Guided chocolate walks ..................................... 65 Incoming operators and DMC‘s at your disposal .................................74 -
REVISION O F the AFRICAN Caeclllan GENUS
REVISION OFTHE AFRICAN CAEClLlAN GENUS SCHISTOMETOPUM PARKER (AMPH IBIA: CYMNOPHIONA: CAECILI IDAE) BY RONALD A. NU AND MICHAEL E. PFRENDER MISCELLANEC JS PUBLICATIONS MUSEUM OF ZOOLOGY, UNIVERSITY OF MICHIGAN, NO. 18Fb; ' Ann Arbor, September 2 7, 1 998 ISSN 076-8405 MIS(:ELIANEOUS PUBLICATIONS MUSEUM OF ZOOLOGY, LJNTVERSITY OF MICHIGAN NO. 187 The publicatioils of the M~~sclunof Zoology, The [Jniversity of Michigan, consist PI-irnarilyof two series-the Occasion:~lPapers allti the Miscellaneous Publicatio~ls.Both series were founded by Dc Bryant Walker, Mr. Rradshaw H. Swales, anti Dr. W.W. Newcornb. Occasionally the Museuni publishes contributiorls outside of these series; begirlnirlg in 1990 these are titled Special Publicatio~lsa~ld arc numbered. All submitted ~n;inl~scriptsreceive external review. The Misccllarieous Publications, which include ~l~ollographicstltdies, papers on field and ~II- seuln techniques, and other contributions 11ot within the scope of the Occasio~lalPapers, are pl~b- lishcd separately. It is not intended that they be grouped into volumes. Each 11r11nberhas a title page and, when necessary, a table of co1itelits. Tllc Occasional Papel-s, publication of which was begun in 1913, servc as a medium Sol- original studies based prirlcipally upon the collections in the Museurn. They are issurtl separately. MThen a sufficient number of pages has hcen printed to niakc a volume, a title pagc, table of contenb, and an index are supplied to libraries and individuals on the mailing list for the series. A cornplete list of publications on Birds, Fishes, Insects, Mammals, Moll~~sks,Rcpdles and Amphib- ians, and other topics is available. Address inquiries to the Directt)r, Muse~unof Zoolohy, The lir~ivcr- sity of Michigan, Ann Arbor, Michigarl 48109-1079. -
Belize in the Cocoa-Chocolate Global Value Chain
Belize in the Cocoa-Chocolate Global Value Chain July 2018 Prepared by Danny Hamrick and Karina Fernandez-Stark Duke Global Value Chains Center, Duke University Global Value Chains Center This research was prepared by the Duke University Global Value Chains Center on behalf of the Organization of American States (OAS). This study is part of the establishment of Small Business Development Centers in the Caribbean. The report is based on both primary and secondary information sources. In addition to interviews with firms operating in the sector and supporting institutions, the report draws on secondary research and information sources. The project report is available at www.gvcc.duke.edu. Acknowledgements The Duke University Global Value Chains Center would like to thank all of the interviewees, who gave generously of their time and expertise, as well as Renee Penco of the Organization of American States (OAS) for her extensive support. The Duke University Global Value Chain Center undertakes client-sponsored research that addresses economic and social development issues for governments, foundations and international organizations. We do this principally by utilizing the global value chain (GVC) framework, created by Founding Director Gary Gereffi, and supplemented by other analytical tools. As a university- based research center, we address clients’ real-world questions with transparency and rigor. www.gvcc.duke.edu. Duke Global Value Chain Center, Duke University © July 2018 i Belize in the Cocoa-Chocolate Global Value Chain Acronyms .......................................................................................................................................................... -
History of Chocolate
History of Chocolate Chocolate comes from fermented, roasted, and ground beans of the Theobroma cacao (cocoa tree). This latin name means "food of the gods”. When mixed with water, chili peppers, cornmeal, and other ingredients, this paste made a foamy, spicy chocolate drink. The first people clearly known to have discovered the secret of cacao were the Mayans in Mexico in Central America called Mesoamerica. The Mayans took the tree from the rainforest and grew it in their backyards, where they harvested, roasted, and ground the seeds into a paste. By 1400, the Aztec empire took over a sizeable part of Mesoamerica. The Aztecs traded with Mayans and other people for cacao and often needed that citizens and conquered people pay their TAX tribute in cacao seeds—a form of Aztec money. The word "chocolate" is from Spanish language of the Aztecs, from "chocolatl" means a bitter drink and came from the word for the frothing stick, "chicoli". The Aztec Indian Xocoatl beverage of maize and cacao. Legend has it that the Aztec king Montezuma welcomed the Spanish explorer Hernando Cortes’ with a banquet that included drinking chocolate, having tragically mistaken him for a King. Christopher Columbus brought some cocoa beans to show Ferdinand and Isabella of Spain, but it was Spanish friars who imported it to Europe during the Spanish conquest of the Aztecs. The Europeans added sugar and milk to counteract the bitterness and removed chili pepper, replacing it with another indigenous Mexican spice, vanilla In 1689, noted physician and collector Hans Sloane developed a milk chocolate drink in Jamaica which was later sold to the Cadbury brothers. -
16 Annual Report
47th Annual Report and Financial Statements 30 SEPTEMBER 2016 2 - 47th annual report & financial statement AUDITORS AND REGISTERED OFFICE Auditors KPMG (ICAG/F/2014/038) Chartered Accountants 13 Yiyiwa Drive, Abelenkpe Post Office Box 242 Accra. Registered Office Cocoa House 41 Kwame Nkrumah Avenue Post Office Box GP 933 Accra Tel. 233 -302 – 661752/678972/661782/683300 Fax: 233 -302- 667104/665076 E-mail: [email protected] Website: www.cocobod.gh 2 - 47th annual report & financial statement I - 47th annual report & financial statement TABLE OF CONTENTS Auditors i Registered Office i Table of Contents ii Highlights iii Board of Directors 2015/16 iv Heads of Subsidiaries and Divisions 2015/16 iv Chairman’s Statement v Review of Business Operations 1 1. Producer Price 1 2. Cocoa Purchases Performance and Licensed Buying Companies 1 3. Coffee and Sheanut Purchases/Exports 2 4. Performance of Divisions and Subsidiaries 4 A. Quality Control Company 4 a. Selective Grading of cocoa 4 b. Grading and Sealing 5 i. Cocoa 5 ii. Composition of Bean-size Categories 5 iii. Other Produce Inspected 5 c. Check Sampling 5 d. Disinfestation Activities 5 1. Insect Control Operations 5 2. Shipment Inspection and Treatment 5 B. Cocoa Marketing Company (Gh.) Ltd. 6 a. Shipments and Processing 6 i. Cocoa Beans 6 ii. Cocoa Products 6 C. Seed Production Division 6 a. Hybrid Seed Pods 7 b. Cocoa Seedlings 7 47th annual report & financial statement - II Table of contents cont. D. Cocoa Health & Extension Division 7 a. Field Operations 7 b. CODAPEC & Hi-Tech 8 E Cocoa Research Institute of Ghana 9 TABLE OF a. -
Annual Variation in Source Contributions to a Mixed Stock
Molecular Ecology (2008) 17, 2185–2193 doi: 10.1111/j.1365-294X.2008.03752.x AnnualBlackwell Publishing Ltd variation in source contributions to a mixed stock: implications for quantifying connectivity KAREN A. BJORNDAL and ALAN B. BOLTEN Archie Carr Center for Sea Turtle Research and Department of Zoology, University of Florida, PO Box 118525, Gainesville, FL 32611, USA Abstract Connectivity among populations of highly migratory species is an area of active research and is often quantified with genetic markers. We determined mitochondrial DNA (mtDNA) sequences in 350 green turtles, Chelonia mydas, in 10 annual samples over a 12-year period from an aggregation of immature green turtles in the southern Bahamas. We found significant temporal structuring in haplotype frequencies among years for all turtles and for recruits. These significant differences were reflected in substantial variation in the relative contri- butions from different rookeries among years estimated by a Bayesian hierarchical model. Because this foraging aggregation has been the subject of a demographic study for over 30 years, we were able to determine that, among the three potential causes of temporal structuring—differential recruitment, mortality and emigration—recruitment accounts for most of this variation. We found that estimates of connectivity and genetic diversity in sea turtle populations are affected by the level of temporal variation reported here. More studies on the extent of temporal variation in composition of mixed stocks of other migratory species are needed to determine how this affects measures of connectivity. Keywords: connectivity, marine turtles, migratory species, population structure, recruitment, temporal variation Received 24 November 2007; revision accepted 21 February 2008 larvae to whales—in which different life stages inhabit widely Introduction separated habitats (DiBacco et al.