Cuba

Distribution by Scientific Domains
Distribution within Humanities and Social Sciences


Selected Abstracts


"Going to War in Buses": The Anglo-American Clash over Leyland Sales to Cuba, 1963,1964

DIPLOMATIC HISTORY, Issue 5 2010
Christopher Hull
The sale of buses by the Leyland Motor Company to Cuba proved contentious, not only in the realm of Anglo-American relations, but also in the domestic sphere of a behind the scenes inter-departmental disagreement within the British government. This is because the bus exports pitted political against economic interests at the height of the Cold War and in the midst of a British export drive. As Her Majesty's Government readily recognized, Washington was particularly sensitive over any issue related to Cuba, which by 1963 was firmly in the communist orbit of the Soviet bloc and which the United States was determined to isolate economically through the application of a trade blockade. The decision to approve the sales came at the end of the Macmillan and Kennedy administrations, and clouded the short-lived partnership of Prime Minister Alec Douglas-Home and President Lyndon B. Johnson. The bus exports became an election issue in the campaigns of both leaders in 1964, assuming a political significance that belied the buses' seemingly innocuous function and outward appearance. [source]


A Test of Wills: Jimmy Carter, South Africa, and the Independence of Namibia

DIPLOMATIC HISTORY, Issue 5 2010
Piero Gleijeses
Until 1975, Washington paid little attention to southern Africa, a backwater in the Cold War where weak insurgencies posed little threat to white rule in Angola, Mozambique, Rhodesia, and Namibia. The collapse of the Portuguese dictatorship in April 1974 meant the end of white rule in Angola and Mozambique. The Cuban victory in Angola the following year propelled southern Africa into the vortex of the Cold War. Between 1977 and 1981, the Carter administration engaged in a complicated minuet with South Africa and the Namibian rebels to craft a negotiated settlement that would grant Namibia its independence. Secretary of State Cyrus Vance and National Security Adviser Zbigniew Brzezinski clashed over the course the United States should follow, while Cuba and the Soviet Union strongly supported the Namibian insurgents and 20,000 Cuban soldiers were poised in neighboring Angola. I analyze the failure of Carter's Namibia policy based on US, Cuban and South African documents, as well as interviews with Namibian, US, Cuban and South African protagonists. [source]


The value of georeferenced collection records for predicting patterns of mosquito species richness and endemism in the Neotropics

ECOLOGICAL ENTOMOLOGY, Issue 1 2008
DESMOND H. FOLEY
Abstract 1.,Determining large-scale distribution patterns for mosquitoes could advance knowledge of global mosquito biogeography and inform decisions about where mosquito inventory needs are greatest. 2.,Over 43 000 georeferenced records are presented of identified and vouchered mosquitoes from collections undertaken between 1899 and 1982, from 1853 locations in 42 countries throughout the Neotropics. Of 492 species in the data set, 23% were only recorded from one location, and Anopheles albimanus Wiedemann is the most common species. 3.,A linear log,log species,area relationship was found for mosquito species number and country area. Chile had the lowest relative density of species and Trinidad-Tobago the highest, followed by Panama and French Guiana. 4.,The potential distribution of species was predicted using an Ecological Niche Modelling (ENM) approach. Anopheles species had the largest predicted species ranges, whereas species of Deinocerites and Wyeomyia had the smallest. 5.,Species richness was estimated for 1° grids and by summing predicted presence of species from ENM. These methods both showed areas of high species richness in French Guiana, Panama, Trinidad-Tobago, and Colombia. Potential hotspots in endemicity included unsampled areas in Panama, French Guiana, Colombia, Belize, Venezuela, and Brazil. 6.,Argentina, The Bahamas, Bermuda, Bolivia, Cuba, and Peru were the most under-represented countries in the database compared with known country species occurrence data. Analysis of species accumulation curves suggested patchiness in the distribution of data points, which may affect estimates of species richness. 7.,The data set is a first step towards the development of a global-scale repository of georeferenced mosquito collection records. [source]


State Policy, Economic Crisis, Gender, and Family Ties: Determinants of Family Remittances to Cuba

ECONOMIC GEOGRAPHY, Issue 1 2004
Sarah A. Blue
Abstract: This article advances the argument that changing economic conditions in the home country act as an important determinant for sending remittances. Research on the determinants of remittances has tended to focus on the characteristics of the sending population. In the case of Cuba, disproportionate attention is paid to political disincentives to send remittances and not enough to changing state policy and the growing economic demand for remittances in that country. Using empirical data gathered from households in Havana, this article tests the importance of economic conditions in the home country, political ideology, the relationship of the sender to the receiver, the length of time away from home, and gender as determinants for remittances. Migration during an economic crisis, having immediate relatives in the home country, and female gender positively influenced remittance behavior for Cuban emigrants. Visits to the home country, especially for migrants who had left decades earlier, were found to be critical for reestablishing family connections and increasing remittances. No support was found for political disincentives as a major determinant of remittance sending to Cuba. [source]


Slave prices, the African slave trade, and productivity in the Caribbean, 1674,18071

ECONOMIC HISTORY REVIEW, Issue 4 2005
DAVID ELTIS
We draw wide-ranging implications about slave productivity change by making use of newly collected data on the prices paid for nearly 230,000 slaves as they arrived in the Americas from Africa between 1674 and 1807. Prices for the product that most slaves were destined to produce-sugar-are also available. Together the comprehensive series allow us to derive annual measures of average slave productivity and to compare productivity trends across different sectors of the Caribbean. Average productivity rose throughout the Caribbean, and the pattern of average productivity change across regions was similar, indicating an open slave market. These averages mask sharp differences in the growth of demand for slaves among regions, as reflected by their slave populations. Between 1700 and 1790 the increase in demand ranged from 90 per cent in Barbados to 600 per cent in Jamaica and Cuba; while total factor productivity overall may have doubled. The slave trade accommodated the rising demand. It also served to offset population attrition among the slaves. [source]


Volatile constituents of fruits of Garcinia dulcis Kurz. from Cuba

FLAVOUR AND FRAGRANCE JOURNAL, Issue 4 2003
Jorge Pino
Abstract The volatile constituents of rata fruits (Garcinia dulcis Kurz.) growing in Cuba were analysed by GC,MS. Ninety compounds were identi,ed in the aroma concentrate, of which linalool, , -terpineol and hexadecanoic acid were found to be the major constituents. Copyright © 2003 John Wiley & Sons, Ltd. [source]


Study of essential oils of Eucalyptus resinifera Smith, E. tereticornis Smith and Corymbia maculata (Hook.) K. D. Hill & L. A. S. Johnson, grown in Cuba

FLAVOUR AND FRAGRANCE JOURNAL, Issue 1 2002
Jorge A. Pino
Abstract The yields and chemical composition are reported of oils obtained by hydrodistillation from the leaves of three species grown in the western region of Cuba: Eucalyptus resinifera Smith, Eucalyptus tereticornis Smith and Corymbia maculata (Hook.) K. D. Hill & L. A. S. Johnson. The analyses were made by GC and GC,MS. The oil of E. resinifera was found to contain 1,8-cineole (68.0%) as the major constituent. In contrast, the oil of E. tereticornis was found to contain 1,8-cineole (23.2%) and p - cymene (13.8%), while that of C. maculata contained ,-pinene (49.7%), ,-eudesmol (18.0%) and ,-eudesmol (11.3%) as major constituents. Copyright © 2001 John Wiley & Sons, Ltd. [source]


Stratigraphic investigations at Los Buchillones, a coastal Taino site in north-central Cuba

GEOARCHAEOLOGY: AN INTERNATIONAL JOURNAL, Issue 5 2006
Matthew C. Peros
The authors present stratigraphic data from Los Buchillones, a now submerged Taino village on the north coast of central Cuba that was occupied from some time prior to A.D. 1220 until 1640 or later. Los Buchillones is one of the best-preserved sites in the Caribbean, with material culture remains that include palm thatch and wooden structural elements from some of the more than 40 collapsed structures. The purpose of this study was to investigate the environment and site-formation processes of the Taino settlement. Sediment cores were sampled from the site and its vicinity to permit integration of the geological and archaeological stratigraphies. The cores were analyzed for color, texture, mollusk content, elemental geochemistry, and mineralogy. The results of the stratigraphic work are consistent with regional sealevel data that shows relative sea level has risen gradually during the late Holocene, but has remained relatively stable since the time the Taino first occupied Los Buchillones. Of the two structures partially cleared, at least one appears to have been built over the water, supported on pilings. Site selection is likely to have resulted from a consideration of environmental factors, such as access to marine, terrestrial, and lagoonal resources, and proximity to freshwater springs. © 2006 Wiley Periodicals, Inc. [source]


A History of Disasters: Spanish Colonialism in the Age of Empire

HISTORY COMPASS (ELECTRONIC), Issue 3 2007
Christopher Schmidt-Nowara
Historians have long relegated colonialism to the margins of modern Spanish history. Spain lost the majority of its overseas empire in the Spanish American revolutions of the early nineteenth century. It was a late, reluctant, and small-scale participant in the partition of Africa. Recent scholarship, however, is bringing colonialism back to the center of Spain's nineteenth and twentieth centuries. This article examines these findings and considers their consequences for narratives of Spanish marginality and modernity. Special attention is given to two recent works: John Tone's War and Genocide in Cuba and Sebastian Balfour's Deadly Embrace. [source]


Molecular basis of phenylketonuria in Cuba

HUMAN MUTATION, Issue 3 2001
L.R. Desviat
Abstract In this study we report the mutation analysis performed in Cuban PKU patients using DGGE and direct sequencing. Sixteen different mutations have been detected, which account for 91% of the total mutant alleles. Haplotype analysis and genealogical data support the European (mainly Spanish) origin of the mutations. Two mutations were found at unexpectedly high frequencies, E280K and R261Q, possibly due to consanguinity and genetic drift, among other factors. Hum Mutat 18:252, 2001. © 2001 Wiley-Liss, Inc. [source]


Effective community health participation strategies: a Cuban example

INTERNATIONAL JOURNAL OF HEALTH PLANNING AND MANAGEMENT, Issue 2 2003
Ruby Greene
Abstract Since the decade of the 1970s health promotion has been an integral part of most primary health care strategies. This article examines some community participation strategies adopted in the health promotion in Cuba and the policies which enable such strategies. This is done in the context of health promotion theory and also examines the concept of direct involvement by the political directorate in health promotion. The article is written from a reflexive perspective following the author's visit to Cuba as member of a health study tour in March 2002. Copyright © 2003 John Wiley & Sons, Ltd. [source]


Community Health Care in Cuba , Edited by Susan E. Mason, David L. Strug and Joan Beder

INTERNATIONAL JOURNAL OF SOCIAL WELFARE, Issue 3 2010
Imti Choonara
No abstract is available for this article. [source]


Tourism and the state in Cuba: from the past to the future

INTERNATIONAL JOURNAL OF TOURISM RESEARCH, Issue 3 2009
Richard Sharpley
Abstract It has long been recognised that nature and extent of state intervention in tourism development closely reflects the prevailing political-economy and ideology within the destination state. This is certainly the case with Cuba which, since the 1959 revolution and despite the collapse of communism elsewhere, remains the world's only centrally-planned economy that boasts a significant international tourism sector. Tracing the development of tourism since 1959, this paper explores the relationship between the evolution of Cuba's political-economic structures and processes and their subsequent influence on the planning, control, development and ownership of tourism on the island. In particular, it considers the potential future of tourism in Cuba, challenging the widespread belief that, in a post-Castro era, the island's tourism sector faces a bright future. It concludes that, even with a potential move towards market reform, significant improvements will be required with respect to the quality, value and diversity of the island's tourism product. Copyright © 2008 John Wiley & Sons, Ltd. [source]


Joaquin Maria Albarran Y Dominguez: Microbiologist, histologist, and urologist,a lifetime from orphan in Cuba to Nobel nominee

INTERNATIONAL JOURNAL OF UROLOGY, Issue 9 2006
ROWAN G CASEY
Abstract, Joaquin Albarran was an extraordinary late 19th century urologist. His early career was in the field of microbiology and histopathology in Paris at a time of great medical developments and innovations. His later contributions to urology included the Albarran lever, Albarrans sign, Albarran,Ormond syndrome and seminal works on testicular and renal tumors. He also wrote treatizes on the pathophysiology of acute urinary retention, nephritis and calculus ureteric obstruction. He died at the young age of 52 from the effects of tuberculosis and in this same year was nominated for the Nobel prize in medicine. [source]


The Latinization of the Central Shenandoah Valley

INTERNATIONAL MIGRATION, Issue 1 2008
Laura Zarrugh
Virginia is among a number of southern states in the United States, such as North Carolina, Arkansas and Georgia, which have experienced a sudden growth in Latino immigration during the past decade. Not only is the volume of growth unprecedented, but many of the destinations are new and located in rural areas. Places that have not hosted immigrant populations for generations are quickly becoming multicultural. The small city of Harrisonburg (population 43,500 according to the 2005 estimate), which is located in the rural Central Shenandoah Valley of Virginia, is perhaps the premier example of this new pattern of change. While local advertising once promoted Harrisonburg for its "99.2% American-born and 93.7% white" population, the area today holds the distinction of hosting the most diverse public school enrollment in the state (in 2006-2007), with students from 64 countries who speak 44 languages. Among them are Spanish speakers from at least 14 different countries. Drawing on social network theory, the paper examines how social networks among Latino immigrants become activated in new settlement areas. It presents a case history of the historic process of "Latinization" involving the settlement of a number of diverse Latino populations (from Mexico, Guatemala, El Salvador, Honduras, Cuba and Uruguay) in Harrisonburg and the surrounding Central Shenandoah Valley. The study demonstrates how a number of key institutions, including local agricultural industries (apples and poultry), a refugee resettlement office and churches recruited "pioneers" from these immigrant groups to the area and how "pioneers" subsequently engaged in further social network recruitment, thus creating multiple transnational "daughter communities" in the Harrisonburg area. The policy implications of this historical process are explored. Au même titre que la Caroline du Nord, l'Arkansas et la Georgie, la Virginie est l'un de ces Etats du sud des Etats-Unis qui ont été témoins d'une poussée soudaine de l'immigration latino-américaine au cours de la dernière décennie. Non seulement il s'agit d'un rythme de croissance sans précédent, mais bon nombre de destinations choisies sont nouvelles et situées en zone rurale. Des lieux qui n'avaient pas accueilli de population immigrée depuis des générations prennent brusquement un caractère multiculturel. La petite ville de Harrisonburg (43 500 habitants selon un décompte approximatif de 2005), qui est située dans la vallée centrale de Shenandoah, en Virginie, est peut-être le principal exemple de cette nouvelle évolution. Alors qu'elle se vantait autrefois d'être composée d'Américains de souche à hauteur de 99,2% et d'être blanche à 93,7%, cette ville se distingue aujourd'hui par la plus grande diversité d'origine des enfants scolarisés à l'échelle de l'Etat (pour la période 2006-2007), puisqu'on y dénombre 64 nationalités parlant 44 langues. On y trouve notamment des hispanophones originaires d'au moins 14 pays différents. A partir de la théorie des réseaux sociaux, l'auteur examine comment ces réseaux se sont activés chez les immigrants latino-américains dans les nouvelles zones d'installation. Il présente un historique du processus de "latinisation", en citant notamment l'installation de populations latino-américaines diverses (originaires du Mexique, du Guatemala, d'El Salvador, du Honduras, de Cuba et d'Uruguay) à Harrisonburg et dans la vallée centrale Shenandoah entourant cette ville. L'auteur montre comment un certain nombre d'institutions clés, et notamment les industries agricoles locales (pommeraies et élevages de poulets), un bureau de réinstallation de réfugiés et des églises ont recruté des "pionniers" au sein de ces groupes d'immigrants, et comment ces "pionniers" ont par la suite poursuivi cette action de recrutement à l'aide de réseaux sociaux, créant ainsi de multiples "communautés affiliées" transnationales dans la région de Harrisonburg. L'étude examine aussi les implications politiques de ce processus historique. Virginia es uno de los estados sureños de los Estados Unidos, al igual que Carolina del Norte, Arkansas y Georgia, que ha experimentado un incremento repentino de la inmigración latina durante el último decenio. No sólo se trata de un incremento sin precedentes, si no que además los destinos son nuevos y localizados en zonas rurales. Estos lugares que no han albergado a poblaciones inmigrantes durante generaciones se están convirtiendo rápidamente en entornos multiculturales. La pequeña ciudad de Harrisonburg (con 43.500 habitantes según el censo de 2005), está localizada en el valle rural central de Shenadoah en Virginia, y es quizás el primer ejemplo de este nuevo patrón de cambio. Si bien la publicidad local promocionaba a Harrisonburg porque sus habitantes eran "99,2 por ciento nacidos en América y 93,7 por ciento blancos" hoy en día se destaca por albergar la población más diversa inscrita en los colegios públicos del Estado (entre 2006 y 2007), con estudiantes provenientes de 64 países que hablan 44 idiomas. Entre ellos están estudiantes de habla hispana provenientes de por lo menos 14 países distintos. Sobre la base de la teoría de redes sociales, este artículo examina redes sociales entre los inmigrantes latinos que se activan en nuevas zonas de asentamiento. Se presenta un estudio por caso de un proceso histórico de "latinización" que implica el asentamiento de toda una variedad de poblaciones latinas de "México, Guatemala, El Salvador, Honduras, Cuba y Uruguay" en Harrisonburg y el valle central aledaño de Shenandoah. El estudio demuestra cómo una serie de instituciones clave,- incluidas las industrias agrícolas locales (manzanos y avicultura), una oficina de reasentamiento de refugiados y las iglesias - reclutaron a los "pioneros" de estos grupos de inmigrantes en la región y cómo esos "pioneros" entablaron ulteriormente el reclutamiento a nivel de su red social, creando "comunidades hermanas" transnacionales y múltiples en la región de Harrisonburg. También se examinan las repercusiones políticas de este proceso histórico. [source]


Race, Gender, and Class in the Persistence of the Mariel Stigma Twenty Years after the Exodus from Cuba

INTERNATIONAL MIGRATION REVIEW, Issue 3 2007
Gastón A. Fernández
The study examines the mediating effects of gender, race, and class in the Mariel Cuban immigrant adaptation process. It explores the significance of the Mariel identity by comparing the experiences of pre-1980 arrivals with those of the Mariel cohort (1980,1981) and post-Mariel arrivals (1982,1990, 1990,2000). The central question of the study is the extent to which the Marielitos' experience as a group with stigmatization and being labeled as "different" and pathological has persisted in having a different effect on their adaptation to the U.S. from that of other Cuban arrivals before and after Mariel. This study bases its definition of stigma on sociologically grounded theoretical orientation of the construction of a social identity in which a dominant group(s) attribute an undesired difference from what was anticipated to an out-group such that it leads to varieties of discrimination that reduce one's life chances. [source]


Multilateral Trade and Agricultural Policy Reforms in Sugar Markets

JOURNAL OF AGRICULTURAL ECONOMICS, Issue 1 2006
Amani Elobeid
Q18; F10 Abstract We analyse the impact of trade liberalisation, removal of production subsidies and elimination of consumption distortions in world sugar markets using a partial-equilibrium international sugar model calibrated on 2002 market data and current policies. The removal of trade distortions alone induces a 27% price increase while the removal of all trade and production distortions induces a 48% increase in 2011/2012 relative to the baseline. Aggregate trade expands moderately, but location of production and trade patterns change substantially. Protectionist Organisation for Economic Co-operation and Development (OECD) countries (the EU, Japan, the US) experience an import expansion or export reduction and a significant contraction of production in unfettered markets. Competitive producers in both OECD countries (Australia) and non-OECD countries (Brazil, Cuba), and even some protected producers (Indonesia, Turkey), expand production when all distortions are removed. Consumption distortions have marginal impacts on world markets and the location of production. We discuss the significance of these results in the context of mounting pressures to increase market access in highly protected OECD countries and the impact on non-OECD countries. [source]


Historical biogeographical patterns of the species of Bursera (Burseraceae) and their taxonomic implications

JOURNAL OF BIOGEOGRAPHY, Issue 11 2006
David Espinosa
Abstract Aim, The plant genus Bursera, with 104 species of trees and shrubs, has been used as a model for biogeographical analyses because of its high species richness and large number of endemic species. The biogeographical patterns of Bursera and their implications for its phylogenetic classification are reviewed in order that some hypotheses on the historical biogeography of tropical Mexico can be proposed. Location,Bursera is found in the south-western USA, most of Mexico, mainly below 1700 m elevation in tropical forests, with some species in xeric shrublands, diversifying along the Pacific slope, Central America, and north-western South America. A few species occur on the Galapagos and Revillagigedo archipelagos, some of which are endemics, whereas in the Antilles species are distributed extensively, with several endemics in the Bahamas, Cuba, Jamaica, and Hispaniola. Methods, Data from specimens in herbaria and the literature were used to construct a matrix of 104 species in 160 areas. Distributional patterns of the species of Bursera were inferred applying track analysis, parsimony analysis of endemicity (PAE), and Brooks parsimony analysis (BPA). Results, Track analysis revealed four individual tracks: (1) a circum-Caribbean track, comprising species of the Bursera simaruba species group; (2) an Antillean track, including species that have been transferred to Commiphora based on their pollen traits; (3) a Mexican Pacific track, including species of the B. fragilis, B. microphylla, and B. fagaroides species groups, called ,cuajiotes'; and (4) a Neotropical Pacific track, including the two species groups assigned to section Bullockia, in which the individual track of the Bursera copallifera species group is nested within the track of the B. glabrifolia species group. The four tracks overlap in a node in the Mexican Pacific slope, where they are highly diversified. PAE allowed us to identify 22 areas of endemism: 12 in Mexico (11 along the Mexican Pacific slope), six in the Antilles, two in Central America, one in South America, and one in the Galapagos. The general area cladogram obtained by BPA has two main clades: one includes the greater Antilles; and the other, 12 Mexican areas of endemism. Main conclusions,Bursera fragilis, B. microphylla, and B. fagaroides species groups can be treated together as a new section within Bursera, sect. Quaxiotea, because they are segregated from the other groups of sect. Bursera based on morphological, anatomical, molecular and geographical evidence. [source]


The (Cuban) Voice of the (Curaçaoan) People: The Making (And Taking) of a Collective Memory

JOURNAL OF HISTORICAL SOCIOLOGY, Issue 3 2009
NANETTE DE JONG
At the turn of the 20th century, Afro-Curaçaoans developed an affinity for Cuban culture that influenced the manner to which they came to define their own collective memory. Cuba was raised to mythological status, appropriated and adapted to fit Curaçaoan daily life, enabling a new and inventive sense of belonging. This essay speaks to the intricacies involved in memory-making, with the Cuban-inspired memory of memories on Curaçao introduced as a relative category. It points to the variegated and tenuous nature of memory, showing how the past, when negotiated with the present, can shape group goals and demarcate membership. [source]


Che's Chevrolet and Fidel's Oldsmobile: On the Road in Cuba.

JOURNAL OF LATIN AMERICAN & CARIBBEAN ANTHROPOLOGY, Issue 1 2010
By Richard Schweid
No abstract is available for this article. [source]


Worldview, the Orichas, and Santería: Africa to Cuba and Beyond by Mercedes Cros Sandoval

JOURNAL OF LATIN AMERICAN & CARIBBEAN ANTHROPOLOGY, Issue 1 2009
Angela N. CastañedaArticle first published online: 16 APR 200
No abstract is available for this article. [source]


Anti-allergic properties of Mangifera indica L. extract (Vimang) and contribution of its glucosylxanthone mangiferin

JOURNAL OF PHARMACY AND PHARMACOLOGY: AN INTERNATI ONAL JOURNAL OF PHARMACEUTICAL SCIENCE, Issue 3 2006
Dagmar García Rivera
Vimang is the brand name of formulations containing an extract of Mangifera indica L., ethnopharmacologically used in Cuba for the treatment of some immunopathological disorders, including bronchial asthma, atopic dermatitis and other allergic diseases. However, the effects of Vimang on allergic response have not been reported until now. In this study, the effects of Vimang and mangiferin, a C-glucosylxanthone isolated from the extract, on different parameters of allergic response are reported. Vimang and mangiferin showed a significant dose-dependent inhibition of IgE production in mice and anaphylaxis reaction in rats, histamine-induced vascular permeability and the histamine release induced by compound 48/80 from rat mast cells, and of lymphocyte proliferative response as evidence of the reduction of the amount of B and T lymphocytes able to contribute to allergic response. In these experiments, ketotifen, promethazine and disodium cromoglicate were used as reference drugs. Furthermore, we demonstrated that Vimang had an effect on an in-vivo model of inflammatory allergy mediated by mast cells. These results constitute the first report of the anti-allergic properties of Vimang on allergic models, as well as suggesting that this natural extract could be successfully used in the treatment of allergic disorders. Mangiferin, the major compound of Vimang, contributes to the anti-allergic effects of the extract. [source]


Clinical trial: a nutritional supplement Viusid, in combination with diet and exercise, in patients with nonalcoholic fatty liver disease

ALIMENTARY PHARMACOLOGY & THERAPEUTICS, Issue 10 2009
E. VILAR GOMEZ
Summary Background, Nonalcoholic fatty liver disease (NAFLD) is a significant health problem for which there is no universally accepted pharmacological treatment. The combination of weight loss and antioxidant drugs to ameliorate insulin resistance and improve steatosis, inflammation and fibrosis provides the rational for therapeutic trials. Aim, To evaluate the efficacy and safety of a nutritional supplement Viusid in association with diet and exercise for NAFLD. Methods, A randomized, controlled and parallel-group trial was conducted at a tertiary care academic centre (National Institute of Gastroenterology, Havana, Cuba). We randomly assigned 60 patients with liver biopsy-proven NAFLD to 6 months of treatment with a hypocaloric diet plus aerobic exercise daily and three Viusid sachets daily or a hypocaloric diet and exercise. Endpoints were improvement in the NAFLD activity score (NAS), fibrosis and normalization of serum aminotransferase levels. Results, A significant improvement in steatosis, necroinflammation and fibrosis was seen in each group of treatment (P < 0.01 for each feature). The Viusid group, as compared with the control group, significantly reduced the mean of NAS [from 4.18 to 0.54 points in the Viusid group vs. 4.45 to 2.2 points in the control group (P < 0.001)]. On between-group comparison, Viusid was found to be associated with a significantly greater improvement in steatosis (P < 0.001), ballooning (P = 0.002) and lobular inflammation (P = 0.025), but not in fibrosis (P = 0.07). Viusid was well tolerated. Conclusions, Our results indicate that treatment with diet and exercise leads to a notable improvement in the histological features of NAFLD; however, the administration of Viusid intensifies the improvements of histological findings, especially of steatosis and inflammation. [source]


The Erosion of Racial Equality in the Context of Cuba's Dual Economy

LATIN AMERICAN POLITICS AND SOCIETY, Issue 3 2007
Sarah A. Blue
ABSTRACT Scholars of Cuba have long linked Afro-Cubans' fate to the revolutionary government. As the government's influence on people's daily lives has declined over the past decade, the question arises of whether Afro-Cubans have sustained the gains they achieved in the revolution's first 30 years. This article uses survey data, collected in December 2000 from 334 Cuban families in Havana, to assess the impact of the post-1993 economic reforms on rising racial inequality in Cuba. It asks whether racial inequities occur in accessing dollars through state employment, self-employment, or remittances, and whether educational gains are tied to higher income. Results indicate that the structural means through which racial discrimination was once virtually eliminated through equal access to education and employment, and through which income levels became equalized according to educational level regardless of racial group, has lost its equalizing force in contemporary Cuba. [source]


Strong Societies, Wed Parties: Regime Change in Cuba and Venzula in the 1950s and Today

LATIN AMERICAN POLITICS AND SOCIETY, Issue 2 2001
Jauier Cowales
ABSTRACT The literature on the origins of democratic institutions is split between bottom-up and top-down approaches. The former emphasize societal factors that press for democracy; the latter, rules and institutions that shape elites' incentives. Can these approaches be reconciled? This article proposes competitive political parties, more so than degrees of modernization and associationalism, as the link between the two. Competitive political parties enhance society's bargaining power with the state and show dominant elites that liberalization is in their best interest; the parties are thus effective conduits of democracy. In the context of party deficit, the prospects for democratization or redemocratization are slim. This is illustrated by comparing Cuba and Venezuela in the 1950s and 1330s. [source]


"Maybe Tomorrow I'll Turn Capitalist": Cuentapropismo in a Workers' State

LAW & SOCIETY REVIEW, Issue 2 2007
Emma F. Phillips
In 1993, the Cuban government significantly expanded the scope of legal self-employment on the island. The change has not been uncontroversial, and cuentapropistas have frequently been held up, both in Cuba and in the United States, as the symbol of Cuba's transition to a free-market economy. In framing cuentapropistas as the vanguards of capitalism, observers have adopted a concept of "transition" which is both rigidly ideological and teleological. This article argues that by employing a sociolegal approach toward cuentapropismo,examining close-up not only the Cuban government's regulation of self-employment, but also how the operation of law is mediated through cuentapropistas' own self-perceptions,we can develop a richer and more complex understanding of transitional periods. Rather than conceptualizing "transition" as a straight line from communism to capitalism, a sociolegal analysis draws attention to the complex relationship between law, identity, and work in the renegotiation of citizenship, and the constitutive role that evolving conceptions of citizenship may have for the shape and character of a transitional period. [source]


Structural organization of the est,31 gene in a Colombian strain of Culex quinquefasciatus differs from that in Cuba

MEDICAL AND VETERINARY ENTOMOLOGY, Issue 1 2002
D. De Silva
Abstract In Culex mosquitoes (Diptera: Culicidae), the most common mechanism for resistance to organophosphorus (OP) insecticides involves amplification of one or more esterases. Two esterase loci are often involved, with different allelic forms co-amplified. Est,31 is co-amplified with est,1 in a Colombian (COL) strain of Culex quinquefasciatus Say. These two alleles co-migrate on acrylamide gels, often leading to misscoring of the phenotype as elevation of a single est, enzyme. By sequencing COL genomic DNA, we determined the est,31 gene length is 1623 nucleotides. The open reading frame of est,31 encodes a 540 amino acid protein, as for est,21 in strain Pel RR from Sri Lanka. The intron/exon boundaries of est,31 are identical to those of est,21, suggesting that they are alleles of the same locus. The COL est,31 gene differs from est,32 in strain MRES from Cuba, although they have equivalent electrophoretic mobility, showing that these two strains contain distinct resistance-associated amplicons. Twenty nucleotide differences were scored between the MRES partial 495 bp sequence and that in the COL strain, with two amino acid changes, demonstrating distinct est, enzymes. Our sequencing data show 95% identity between the three est, genes (each has six introns and seven exons) in OP-resistant Cx. quinquefasciatus. Amplified est,31 and est,1 are at least 10 kb apart in temephos-selected COL and 2.7 kb apart in Pel RR, whereas these non-amplified genes are only 1.7 kb apart in the non-selected parental COL stock, as in Pel SS (susceptible Sri Lankan strain), demonstrating that this region of the genome is susceptible to expansion and contraction. [source]


High intercontinental migration rates and population admixture in the sapstain fungus Ophiostoma ips

MOLECULAR ECOLOGY, Issue 1 2007
XUDONG ZHOU
Abstract Ophiostoma ips is a common fungal associate of various conifer-infesting bark beetles in their native ranges and has been introduced into non-native pine plantations in the Southern Hemisphere. In this study, we used 10 microsatellite markers to investigate the population biology of O. ips in native (Cuba, France, Morocco and USA) and non-native (Australia, Chile and South Africa) areas to characterize host specificity, reproductive behaviour, and the potential origin as well as patterns of spread of the fungus and its insect vectors. The markers resolved a total of 41 alleles and 75 haplotypes. Higher genetic diversity was found in the native populations than in the introduced populations. Based on the origin of the insect vectors, the populations of O. ips in Australia would be expected to reflect a North American origin, and those in Chile and South Africa to reflect a European origin. However, most alleles observed in the native European population were also found in the native North American population; only the allele frequencies among the populations varied. This admixture made it impossible to confirm the origin of the introduced Southern Hemisphere (SH) populations of O. ips. There was also no evidence for specificity of the fungus to particular bark beetle vectors or hosts. Although O. ips is thought to be mainly self-fertilizing, evidence for recombination was found in the four native populations surveyed. The higher genetic diversity in the North American than in the European population suggests that North America could be the possible source region of O. ips. [source]


DNA barcoding of Cuban freshwater fishes: evidence for cryptic species and taxonomic conflicts

MOLECULAR ECOLOGY RESOURCES, Issue 3 2010
ARIAGNA LARA
Abstract Despite ongoing efforts to protect species and ecosystems in Cuba, habitat degradation, overuse and introduction of alien species have posed serious challenges to native freshwater fish species. In spite of the accumulated knowledge on the systematics of this freshwater ichthyofauna, recent results suggested that we are far from having a complete picture of the Cuban freshwater fish diversity. It is estimated that 40% of freshwater Cuban fish are endemic; however, this number may be even higher. Partial sequences (652 bp) of the mitochondrial gene COI (cytochrome c oxidase subunit I) were used to barcode 126 individuals, representing 27 taxonomically recognized species in 17 genera and 10 families. Analysis was based on Kimura 2-parameter genetic distances, and for four genera a character-based analysis (population aggregation analysis) was also used. The mean conspecific, congeneric and confamiliar genetic distances were 0.6%, 9.1% and 20.2% respectively. Molecular species identification was in concordance with current taxonomical classification in 96.4% of cases, and based on the neighbour-joining trees, in all but one instance, members of a given genera clustered within the same clade. Within the genus Gambusia, genetic divergence analysis suggests that there may be at least four cryptic species. In contrast, low genetic divergence and a lack of diagnostic sites suggest that Rivulus insulaepinorum may be conspecific with Rivulus cylindraceus. Distance and character-based analysis were completely concordant, suggesting that they complement species identification. Overall, the results evidenced the usefulness of the DNA barcodes for cataloguing Cuban freshwater fish species and for identifying those groups that deserve further taxonomic attention. [source]


Polymorphic microsatellite markers for the symbiotic fungi cultivated by leaf cutter ants (Attini, Formicidae)

MOLECULAR ECOLOGY RESOURCES, Issue 5 2009
JARROD J. SCOTT
Abstract We developed 23 polymorphic microsatellite markers for the symbiotic fungi cultivated by leaf cutter ants, then assessed allelic variation in North American leafcutter-fungus populations (Mexico, Cuba, USA). Polyploidy was indicated by 21 of the 23 loci, consistent with the multinucleate nature of leafcutter fungi. Microsatellite fingerprinting can now assess fungal genetic variation within leafcutter nests to test for monoculture of the cultivated fungi. [source]