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Search Results: 1 - 10 of 90999 matches for " José Luis; Morrone "
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Identifying priority areas for conservation in Mexican Tropical deciduous forest based on tree species
Cué-B?r,Eva M.; Villase?or,José Luis; Morrone,Juan J.; Ibarra-Manríquez,Guillermo;
Interciencia , 2006,
Abstract: the main objective was to identify and rank areas for the conservation of exclusive, or nearly exclusive, tree species of the tropical deciduous forest in mexico, a land cover type greatly endangered worldwide. a list of 425 tree species (67.5% endemic to mexico), including 56 families and 185 genera registered at the state level, was compiled from an exhaustive revision of specialized floristic literature. the conservation status of these species was assessed by registering their presence in the tropical deciduous forest areas, located within the limits of mexican natural protected areas. parsimony analysis of endemicity led to identify 16 areas of endemism, supported by 54 synapomorphies and 73 autapomorphies (72.4% endemic to mexico). protected areas include a low to medium proportion both of widespread tree species (129 species, 30.3%) and species characterizing areas of endemism (56 species out of 127, 44.1%). in the latter group, only 7 species are included within a risk category. analyses of complementarity (total richness of species and of species within areas of endemism) and of phylogenetic diversity (families and genera) are coincident in assigning high conservation priority for areas in the states of chiapas, guerrero, jalisco, michoacán, oaxaca, and yucatán. based on the results, specific recommendations are provided for the development of strategies of tree conservation in the mexican tropical deciduous forest.
Patrones de distribución de la flora vascular acuática estricta en el estado de Tamaulipas, México
Mora-Olivo, Arturo;Villase?or, José Luis;Luna-Vega, Isolda;Morrone, Juan J.;
Revista mexicana de biodiversidad , 2008,
Abstract: patterns of distribution and richness of strictly aquatic vascular plants of the state of tamaulipas, mexico, were analyzed. we registered 93 species of strictly aquatic vascular plants, which 62 are typical from lentic environments. the río tamesí sub-basin contains the highest number of species (68, 73.1%). there are no endemic species to the state of tamaulipas, but we found 2 species endemic to mexico (lobelia purpusii and oserya coulteriana). twenty nine species (31.2%) are considered rare, because they are present in a single sub-basin; only 2 species are widely distributed in most of them (bacopa monnieri and echinodorus berteroi). a parsimony analysis of endemicity (pae) of the hydrological sub-basins represented in this state based on the shared presence of species suggested that the strictly aquatic vascular plants have a nested distributional pattern. we conclude that these plants in tamaulipas are part of the same floristic unit and that their distribution follow altitudinal, latitudinal and climatic gradients.
Patrones de distribución de la flora vascular acuática estricta en el estado de Tamaulipas, México Distributional patterns of the strictly aquatic vascular flora in the state of Tamaulipas, Mexico
Arturo Mora-Olivo,José Luis Villase?or,Isolda Luna-Vega,Juan J. Morrone
Revista mexicana de biodiversidad , 2008,
Abstract: Se analizaron los patrones de riqueza y distribución de las plantas vasculares acuáticas estrictas en el estado de Tamaulipas, México. Se registraron 93 especies, 62 de las cuales son típicas de ambientes lénticos. La subcuenca Río Tamesí fue la que registró el mayor número de especies (68, 73.1%). No se registraron especies endémicas del estado, aunque existen 2 especies restringidas al territorio mexicano (Lobelia purpusii y Oserya coulteriana). Se consideran como raras 29 especies (31.2%) por presentarse en una sola subcuenca y sólo 2 especies están distribuidas ampliamente en la mayoría de éstas (Bacopa monnieri y Echinodorus berteroi). Un análisis de parsimonia de endemismos (PAE) de las subcuencas hidrológicas del estado con base en la presencia compartida de especies reveló que las plantas acuáticas estrictas presentan un patrón de distribución anidado. Se concluye que las plantas vasculares acuáticas estrictas de Tamaulipas son parte de una misma unidad florística y que su distribución obedece a gradientes altitudinales, latitudinales y climáticos. Patterns of distribution and richness of strictly aquatic vascular plants of the state of Tamaulipas, Mexico, were analyzed. We registered 93 species of strictly aquatic vascular plants, which 62 are typical from lentic environments. The Río Tamesí sub-basin contains the highest number of species (68, 73.1%). There are no endemic species to the state of Tamaulipas, but we found 2 species endemic to Mexico (Lobelia purpusii and Oserya coulteriana). Twenty nine species (31.2%) are considered rare, because they are present in a single sub-basin; only 2 species are widely distributed in most of them (Bacopa monnieri and Echinodorus berteroi). A parsimony analysis of endemicity (PAE) of the hydrological sub-basins represented in this state based on the shared presence of species suggested that the strictly aquatic vascular plants have a nested distributional pattern. We conclude that these plants in Tamaulipas are part of the same floristic unit and that their distribution follow altitudinal, latitudinal and climatic gradients.
Toward the identification of a core zone in the tehuacán-Cuicatlán Biosphere reserve, Mexico, based on parsimony analysis of endemicity of flowering plant species
Méndez-Larios,Isidro; Villase?or,José Luis; Lira,Rafael; Morrone,Juan J; Dávila,Patricia; Ortiz,Enrique;
Interciencia , 2005,
Abstract: the evaluation of distributional patterns of 174 flowering plant species endemic to the tehuacán-cuicatlán biosphere reserve, mexico, using the parsimony analysis of endemicity (pae), allowed the identification of eight areas of endemism. these areas are considered irreplaceable as their species are not found anywhere else. the areas of endemism identified are proposed as core zones for the biosphere reserve, as they would conserve 85% of the endemic flora and 68% of the reserve?s total floristic diversity.
General trends in world biogeographic literature: a preliminary bibliometric analysis
Morrone, Juan J.;Guerrero, José C.;
Revista Brasileira de Entomologia , 2008, DOI: 10.1590/S0085-56262008000400002
Abstract: records with the search string biogeograph* were collected from the science citation index (sci). a total of 3456 records were downloaded for the 1945-2006 period from titles of articles and reviews, and 10,543 records were downloaded for 1991-2006, taking into consideration also abstracts and keywords. temporal trends of publications, geographical and institutional distribution of the research output, authorship, and core journals were evaluated. there were as many as 122 countries carrying out biogeographic research; in the most recent period, usa is the top producing country, followed by the united kingdom, australia, france, germany, spain, and canada. there were 17,493 authors contributing to the field. during 1991-2006 there were 4098 organizations with authors involved in biogeographic research; institutions with higher number of papers are the natural history museum (united kingdom), the university of california, berkeley (usa), the museum national d'histoire naturelle (france), the universidad nacional autónoma de méxico (mexico), the american museum of natural history (usa) and the russian academy of sciences (russia). research articles are spread over a variety of journals, with the journal of biogeography, molecular phylogenetics and evolution, molecular ecology, and biological journal of the linnean society being the core journals. from 28,759 keywords retrieved those with the highest frequency were evolution, phylogeny, diversity, mitochondrial dna, pattern(s), systematics, and population(s). we conclude that publications on biogeography have increased substantially during the last years, especially since 1998. the preferred journal for biogeographic papers is the journal of biogeography. most frequent keywords seem to indicate that biogeography fits well within both evolutionary biology and ecology, with molecular biology and phylogenetics being important factors that drive their current development.
Ginecomastia: um efeito colateral raro da isoniazida
Morrone, Nelson;Morrone Junior, Nelson;Braz, Alessandra Garcia;Maia, José Antonio Freire;
Jornal Brasileiro de Pneumologia , 2008, DOI: 10.1590/S1806-37132008001100014
Abstract: we report the case of a patient who twice developed gynecomastia following tuberculosis treatment. an 18-year-old male developed painful bilateral gynecomastia after three months of treatment with the isoniazid-rifampin-pyrazinamide regimen. partial resolution of gynecomastia was achieved at the end of treatment. the patient was retreated with the same regimen eight years later, and gynecomastia recurred after six months of treatment. hormone levels were normal, and a mammogram revealed bilateral gynecomastia. the isoniazid was discontinued, and the gynecomastia was partially resolved by the end of treatment. four years later, gynecomastia was not detected. we conclude that isoniazid-related gynecomastia completely resolves when the medication is discontinued. therefore, pharmacological and surgical treatment should be avoided.
Pneumopatia causada por Mycobacterium kansasii
Morrone Nelson,Cruvinel Maria do Carmo,Morrone Junior Nelson,Freire José Antonio dos Santos
Jornal de Pneumologia , 2003,
Abstract: INTRODU O: O Mycobacterium kansasii é uma micobactéria n o tuberculosa que pode causar coloniza o ou infec o pulmonar. OBJETIVO: Relatar experiência com doen a pulmonar causada pelo M. kansasii em uma série de seis pacientes diagnosticados ao longo de cinco anos. MéTODO: Entre junho de 1995 e junho de 2000 foram admitidos 1.349 pacientes no Dispensário do Ipiranga Ari Nogueira da Silva-Sanatorinhos, com o diagnóstico de tuberculose pulmonar, dos quais seis tiveram cultura positiva para M. kansasii. RESULTADOS: Cinco pacientes eram homens e a idade variou entre 25 e 77 anos. Todos apresentavam pneumopatia cr nica e eram sintomáticos respiratórios com teste negativo para síndrome de imunodeficiência humana. As radiografias de tórax eram compatíveis com a presen a de doen a pulmonar prévia: cavidades de paredes finas foram notadas em todos e espessamento pleural subjacente às cavidades foi observado em dois pacientes. Todos foram tratados inicialmente com isoniazida, rifampicina, pirazinamida (INH-RMP-PZA) e etambutol (EMB) foi introduzido precocemente em dois pacientes por intolerancia à pirazinamida, enquanto que em outros dois a introdu o foi feita ao ser conhecido o resultado da cultura. Todos os pacientes foram tratados por mais de nove meses, tendo sido observada recidiva em um deles. Um paciente com silicose faleceu após dois anos por insuficiência respiratória, depois de ter sido considerado curado. CONCLUS ES: A micobacteriose por M. kansasii foi encontrada com baixa freqüência, podendo estar relacionada às características dos pacientes encaminhados ao nosso servi o. O esquema INH-RMP-PZA, com substitui o eventual da PZA por etambutol, mostrou sucesso terapêutico.
Hacia una biogeografía evolutiva
MORRONE,UANJ;
Revista chilena de historia natural , 2007, DOI: 10.4067/S0716-078X2007000400011
Abstract: the proliferation of methods in the last decades has led some authors to question whether biogeography is a coherent discipline. biotas are complex mosaics due to dispersal (expansion of distributions) and vicariance (fragmentation of distributions), having complex, reticulate histories, which necessarily need to be studied through the integration of different methodologies. an evolutionary biogeographical analysis may involve five steps: (1) recognition of biotic components (sets of spatio-temporally integrated taxa due to common history), through panbiogeography and methods used to identify areas of endemism; (2) contrastation of the biotic components and identification of the vicariant events that fragmented them, through cladistic biogeography and comparative phylogeography; (3) establishment of a hierarchic arrangement of the components in a biogeographic system of realms, regions, dominions, provinces and districts; (4) identification of cenocrons (sets of taxa with similar origins and ages), dated using intraspecific phylogeography, molecular clocks and fossils; and (5) formulation of a geobiotic scenario, that explains the evolution of the biotic components and cenocrons, integrating geological and tectonical information
From Cancer to Diarrhea: The Moving Target of Public Concern about Environmental Health Risks
Michele Morrone
Environmental Health Insights , 2012, DOI: 10.4137/EHI.S8296
Abstract: Public concern about the environment can be unpredictable because it is influenced by numerous factors. Environmental health issues often emerge as important because the public is worried about their health especially when it comes to cancer. Public fear of cancer from environmental exposures is reinforced by many of the US regulations that set pollutant limits based on reducing the risk of cancers rather than other health outcomes. While fear of cancer will never dissipate, recent foodborne outbreaks are contributing to raising public awareness of the health effects from microbes. This paper adds to the dialogue about the challenges of enhancing public understanding of environmental health issues. Internal factors, such as worry, that contribute to public outrage are sometimes more important than external factors such as the media. In addition, relying on the media to inform the public about imminent public health risks may be an ineffective approach to enhancing understanding. In the end, scientists and risk communicators are forced to compete with politicians who are often very effective at manipulating public understanding of risk.
Hacia una biogeografía evolutiva Towards an evolutionary biogeography
UANJ MORRONE
Revista chilena de historia natural , 2007,
Abstract: La proliferación de métodos en las últimas décadas ha llevado a algunos autores a cuestionar si la biogeografía es una disciplina coherente. Las biotas son mosaicos complejos debidos a dispersión (expansión de las distribuciones) y vicarianza (fragmentación de las distribuciones), teniendo historias complejas y reticuladas, que necesariamente deben estudiarse a través de la integración de diferentes metodologías. Un análisis biogeográfico evolutivo involucraría cinco etapas: (1) reconocimiento de componentes bióticos (conjuntos de taxa integrados espacio-temporalmente debido a una historia común), mediante la panbiogeografía y métodos para identificar áreas de endemismo; (2) contrastación de los componentes bióticos e identificación de los eventos vicariantes que los fragmentaron, mediante la biogeografía cladística y filogeografía comparada; (3) establecimiento de un arreglo jerárquico de los componentes en un sistema biogeográfico de reinos, regiones, dominios, provincias y distritos; (4) identificación de los cenocrones (conjuntos de taxa con edad y orígenes similares), datados mediante la filogeografía intraespecífica, relojes moleculares y fósiles; y (5) formulación de un escenario geobiótico, que explique la evolución de los componentes y cenocrones, integrando información geológica y tectónica The proliferation of methods in the last decades has led some authors to question whether biogeography is a coherent discipline. Biotas are complex mosaics due to dispersal (expansion of distributions) and vicariance (fragmentation of distributions), having complex, reticulate histories, which necessarily need to be studied through the integration of different methodologies. An evolutionary biogeographical analysis may involve five steps: (1) recognition of biotic components (sets of spatio-temporally integrated taxa due to common history), through panbiogeography and methods used to identify areas of endemism; (2) contrastation of the biotic components and identification of the vicariant events that fragmented them, through cladistic biogeography and comparative phylogeography; (3) establishment of a hierarchic arrangement of the components in a biogeographic system of realms, regions, dominions, provinces and districts; (4) identification of cenocrons (sets of taxa with similar origins and ages), dated using intraspecific phylogeography, molecular clocks and fossils; and (5) formulation of a geobiotic scenario, that explains the evolution of the biotic components and cenocrons, integrating geological and tectonical information
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