Contribution of Cytogenetics to the Debate on the Paraphyly of Pachycondyla spp. (Hymenoptera, Formicidae, Ponerinae) by Cléa dos Santos Ferreira Mariano, Silvia das Graças Pompolo, Janisete Gomes Silva, Jacques Hubert Charles Delabie

“…We present evidence of the paraphyly of the ant genus Pachycondyla resulting from our cytogenetic studies on 29 populations in 18 species from Brazil and French Guyana. It is likely that karyotypes with a large number of chromosomes and comprising mostly small acrocentric chromosomes in species within the Pachycondyla stricto sensu group resulted from a succession of centric fission events. …”
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Blood Reference Intervals for Antillean Manatees (Trichechus manatus manatus) from Puerto Rico by Antonio A. Mignucci-Giannoni, Mayela M. Alsina-Guerrero

“…We establish the reference intervals of hematology and blood chemistry for the population of Antillean manatees in Puerto Rico and compare them with those established for manatees from Belize, Brazil, Florida, Guyana, and Mexico.…”
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Utilisation des sécrétions de myriapodes chez les lémurs et les sapajous : fonction curative ou signalisation sociale ? by Bruno Simmen, Laurent Tarnaud

“…Opportunistic data were collected in a prosimian species (a hybrid form of Eulemur sp.) in a gallery forest South of Madagascar (occurrences in January 2005) and in capuchin monkeys (Cebus apella) in a tropical rainforest in French Guyana (occurrences in March-April 1996). Whereas capuchin monkeys anoint large parts of their fur with millipede secretions, lemurs only rub the circum-genital area, usually after smelling the millipedes, which appears to trigger a stereotyped response analogous to flehmen. …”
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Parametric Estimation of Directional Wave Spectra from Moored FPSO Motion Data Using Optimized Artificial Neural Networks by Do-Soo Kwon, Sung-Jae Kim, Chungkuk Jin, MooHyun Kim

“…Leveraging a mid-fidelity digital twin of a spread-moored FPSO vessel in the Guyana Sea, this approach integrates a wide range of statistical values calculated from the time histories of vessel responses—displacements, angular velocities, and translational accelerations. …”
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Vermicomposting of different organic materials using the epigeic earthworm Eisenia foetida by Yvonne Indrani Ramnarain, Abdullah Adil Ansari, Lydia Ori

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Voices and visions: Navigating the landscape of sexual, reproductive, and maternal health and rights in Latin America and the Caribbean: A stakeholder mapping and analysis by Sofia Pirsch, Denise Zavala, Mabel Berrueta, María Belizán, Juan Pedro Alonso, Sandra Formia, Jamile Ballivian, Miluska Ramirez-Rodríguez, Maisa Havela, Gabriela Perrota, Analía López, Cintia Cejas, Adolfo Rubinstein

“…Our study focuses on Argentina, Colombia, Guatemala, Guyana, Jamaica, Mexico, and Peru. The primary objective was to identify and comprehensively categorise the activities undertaken by them, since their actions shape, and promote or hinder the SRMHR political agenda in the region. …”
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L’agriculture itinérante sur brûlis, une menace sur la forêt tropicale humide ? by Serge Bahuchet, Jean-Marie Betsch

“…(Kleinman et al. 1995).In the context of the announcement of the creation of the National Park of the South of French Guiana, an interdisciplinary program (ecology, pedobiology, ethnology; MNHN-CNRS-IRD) Effects of the traditional cultural practices on soils and forest (French Environment Ministry) studied the effects of the itinerant agriculture on slash-and-burn field from an analysis of the conditions which allow Amerindian communities to satisfy their material and spiritual needs in a forest system.This program set up the following points:– the fine practices of this agriculture, constituting a real strategy, supply efficiently the mineral elements in the cultures, without purchase of fertilizers, and ensure a rapid forest recovery after at least 10 years; the cycles short culture - long fallow allow the self regeneration of an agroforestry system registered since millenniums in the forest dynamics of the river banks;– the adoption of the long fallow limits the spatial extent of every family to 10-15 hectares at most;– the transportation on foot of the harvest towards the village limits the extent of the agriculture to a 3-4 km band from the river; beyond, the forest is protected from an agricultural pressure;– the absence of the market does not lead to an increase of the cultivated surfaces and the pressure on the forest is not increasing thus at present;– the forest of the hinterland includes wide zones restricted by strong social taboos; the conservation of the social organization of the Amerindian ethnic groups is the first condition of the preservation of the forest domain.The real solution for the preservation of the forest heritage in the South of French Guiana, obviously social, was thus already political, before the creation of the “Amazonian Park of Guyana” (2007).…”
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Leave no child behind: Using data from 1.7 million children from 67 developing countries to measure inequality within and between groups of births and to identify left behind popul... by Antonio P Ramos, Martin J Flores, Robert E Weiss

“…For all surveys, we report efficiency gains from 26% in Mali to 578% in Guyana. High risk births tend to be births from mothers who are in the lowest socioeconomic group, live in rural areas and/or have already experienced a prior death of a child.…”
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Global Patterns of Prostate Cancer Incidence, Aggressiveness, and Mortality in Men of African Descent by Timothy R. Rebbeck, Susan S. Devesa, Bao-Li Chang, Clareann H. Bunker, Iona Cheng, Kathleen Cooney, Rosalind Eeles, Pedro Fernandez, Veda N. Giri, Serigne M. Gueye, Christopher A. Haiman, Brian E. Henderson, Chris F. Heyns, Jennifer J. Hu, Sue Ann Ingles, William Isaacs, Mohamed Jalloh, Esther M. John, Adam S. Kibel, LaCreis R. Kidd, Penelope Layne, Robin J. Leach, Christine Neslund-Dudas, Michael N. Okobia, Elaine A. Ostrander, Jong Y. Park, Alan L. Patrick, Catherine M. Phelan, Camille Ragin, Robin A. Roberts, Benjamin A. Rybicki, Janet L. Stanford, Sara Strom, Ian M. Thompson, John Witte, Jianfeng Xu, Edward Yeboah, Ann W. Hsing, Charnita M. Zeigler-Johnson

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Réflexions sur un « style ethnique » : la céramique kali’na du littoral oriental des Guyanes by Gérard Collomb

“…Reflexions about « ethnic style »: Kali’na pottery from the Eastern coast of the Guyanas. Can ceramic styles characterization make it possible to establish a continuity between the archaeological cultures closest to the Contact and the current people on the Eastern coast of the Guyanas? …”
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