8 research outputs found

    La supervisión del superior jeráquico en la Policía Mexicana

    Get PDF
    This article analyzes the possibilities that the police hierarchical superior has to supervise and punish the misconduct of his subordinates in charge. It is argued that the existence of an environment of constant changes of chain of command holders favors both the taking of the police institution by legal and illegal actors, and the emergence of a state of uncertainty about how the chain of command will be shaped in each change of police chief, which favors in the hierarchical superiors attitudes and dispositions of tolerance towards the bad conduct of their subordinates. Este artículo analiza las posibilidades que tiene el superior jerárquico policial de supervisar y sancionar la mala conducta de sus subordinados a cargo. Se argumenta que la existencia de un entorno de constante cambios de titulares de la cadena de mando favorece tanto la toma de la institución policial por actores legales e ilegales, como la emergencia de un estado de incertidumbre sobre cómo quedará conformada la cadena de mando en cada cambio de jefe policial, lo que favorece en los superiores jerárquicos actitudes y disposiciones de tolerancia hacia la mala conducta de sus subordinados.

    A mathematical insight into cell labelling experiments for clonal analysis

    Get PDF
    Studying the progression of the proliferative and differentiative patterns of neural stem cells at the individual cell-level is crucial to the understanding of cortex development and how the disruption of such patterns can lead to malformations and neurodevelopmental diseases. However, our understanding of the precise lineage progression program at single cell resolution is still incomplete due to the technical variations in lineage tracing approaches. One of the key challenges involves developing a robust theoretical framework in which we can integrate experimental observations and introduce correction factors to obtain a reliable and representative description of the temporal modulation of proliferation and differentiation. In order to obtain more conclusive insights we carry out virtual clonal analysis using mathematical modelling and compare our results against experimental data. Using a dataset obtained with Mosaic Analysis with Double Markers, we illustrate how the theoretical description can be exploited to interpret and reconcile the disparity between virtual and experimental results

    CARACTERIZAÇÃO TEXTURAL E MINERALÓGICA DAS ROCHAS DO MORRO DO NÍQUEL (MG) E CORRELAÇÕES COM O PROCESSO DE SERPENTINIZAÇÃO: Textural and mineralogical analisys of Morro do Níquel rocks (MG) and correlations with serpentinization

    Get PDF
    Morro do Níquel, a serpentinitic massif located in the southern extension of the Southern Brasilia Belt, in the Passos Nappe context, was the subject of a detailed textural and mineralogical study, developed on a drillhole, aiming to characterize the rocks present there. This massif has an ellipsoidal shape, with dimensions of 400 x 800 meters and thickness greater than 300 meters, composed only by serpentinite. This serpentinite has a predominance of mesh, mesh-ribbon and ribbon textures, consisting of lizardite / chrysotile and pseudomorphs that refer to preterit olivine crystals. The homogeneity of the studied samples indicates that the protolith was a rock with granular texture, medium to coarse granulation (> 0.5 cm) and constant mineralogy, possibly a dunite. The conditions described for that massif indicate two metamorphic events, an older one that developed in amphibolite facies, and a younger one, developed in prehnite-pumpellyite facies, but that partially preserved features of the past event. The presence of awaruite and heazlewoodite suggests a serpentinization developed in low O2 and S2 fugacity. Petrographic, lithological and metamorphic analysis shows that this body has distinct characteristics from serpentinites of the Greenstone Belt Morro do Ferro, an archean metavolcanossedimentary unit to which it is currently associated.O Morro do Níquel, maciço serpentinítico situado na extensão sul da Faixa Brasília Meridional, no contexto da Nappe de Passos, foi objeto de estudo mineralógico e textural detalhado, desenvolvido com base em testemunho de sondagem, visando caracterizar os litotipos ali presentes. Esse corpo apresenta formato elipsoidal, com dimensões de 400 x 800 metros e espessura superior a 300 metros, constituído, unicamente, por serpentinito. Esses serpentinitos apresentam predominância de texturas mesh, mesh-ribbon e ribbon, constituídas de lizardita/crisotilo e pseudomorfos que remetem a cristais reliquiares de olivina. A homogeneidade das amostras estudadas indica que o protólito potencialmente era composto de rocha com textura granular, granulação média/grossa (>0,5cm) e mineralogia constante, correspondendo, possivelmente, a um dunito. Nesse maciço são descritas condições indicativas de dois eventos metamórficos, um mais antigo que se desenvolveu em fácies anfibolito, e um mais jovem, em fácies prehnita-pumpellyita, mas que preservou, parcialmente, feições do evento pretérito. A presença de awaruita e heazlewoodita descreve uma condição de serpentinização em condições de baixa fugacidade de O2 e S2. A análise petrográfica, litológica e metamórfica aponta que esse corpo guarda características distintas dos serpentinitos do Greenstone Belt Morro do Ferro, unidade metavulcanossedimentar arqueana à qual é atualmente associado

    Atlantic mammal traits: a dataset of morphological traits of mammals in the atlantic forest of south America

    Get PDF
    Measures of traits are the basis of functional biological diversity. Numerous works consider mean species-level measures of traits while ignoring individual variance within species. However, there is a large amount of variation within species and it is increasingly apparent that it is important to consider trait variation not only between species, but also within species. Mammals are an interesting group for investigating trait-based approaches because they play diverse and important ecological functions (e.g., pollination, seed dispersal, predation, grazing) that are correlated with functional traits. Here we compile a data set comprising morphological and life history information of 279 mammal species from 39,850 individuals of 388 populations ranging from −5.83 to −29.75 decimal degrees of latitude and −34.82 to −56.73 decimal degrees of longitude in the Atlantic forest of South America. We present trait information from 16,840 individuals of 181 species of non-volant mammals (Rodentia, Didelphimorphia, Carnivora, Primates, Cingulata, Artiodactyla, Pilosa, Lagomorpha, Perissodactyla) and from 23,010 individuals of 98 species of volant mammals (Chiroptera). The traits reported include body mass, age, sex, reproductive stage, as well as the geographic coordinates of sampling for all taxa. Moreover, we gathered information on forearm length for bats and body length and tail length for rodents and marsupials. No copyright restrictions are associated with the use of this data set. Please cite this data paper when the data are used in publications. We also request that researchers and teachers inform us of how they are using the data.Fil: Gonçalves, Fernando. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Bovendorp, Ricardo S.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Beca, Gabrielle. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Bello, Carolina. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Costa Pereira, Raul. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Muylaert, Renata L.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Rodarte, Raisa R.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Villar, Nacho. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Souza, Rafael. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Graipel, Maurício E.. Universidade Federal de Santa Catarina; BrasilFil: Cherem, Jorge J.. Caipora Cooperativa, Florianopolis; BrasilFil: Faria, Deborah. Universidade Estadual de Santa Cruz; BrasilFil: Baumgarten, Julio. Universidade Estadual de Santa Cruz; BrasilFil: Alvarez, Martín R.. Universidade Estadual de Santa Cruz; BrasilFil: Vieira, Emerson M.. Universidade do Brasília; BrasilFil: Cáceres, Nilton. Universidade Federal de Santa María. Santa María; BrasilFil: Pardini, Renata. Universidade de Sao Paulo; BrasilFil: Leite, Yuri L. R.. Universidade Federal do Espírito Santo; BrasilFil: Costa, Leonora Pires. Universidade Federal do Espírito Santo; BrasilFil: Mello, Marco Aurelio Ribeiro. Universidade Federal de Minas Gerais; BrasilFil: Fischer, Erich. Universidade Federal do Mato Grosso do Sul; BrasilFil: Passos, Fernando C.. Universidade Federal do Paraná; BrasilFil: Varzinczak, Luiz H.. Universidade Federal do Paraná; BrasilFil: Prevedello, Jayme A.. Universidade do Estado de Rio do Janeiro; BrasilFil: Cruz-Neto, Ariovaldo P.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Carvalho, Fernando. Universidade do Extremo Sul Catarinense; BrasilFil: Reis Percequillo, Alexandre. Universidade de Sao Paulo; BrasilFil: Paviolo, Agustin Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú; ArgentinaFil: Duarte, José M. B.. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil. Fundación Oswaldo Cruz; BrasilFil: Bernard, Enrico. Universidade Federal de Pernambuco; BrasilFil: Agostini, Ilaria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú; ArgentinaFil: Lamattina, Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. Ministerio de Salud de la Nación; ArgentinaFil: Vanderhoeven, Ezequiel Andres. Ministerio de Salud de la Nación; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentin

    Association between breakfast frequency and physical activity and sedentary time : a cross-sectional study in children from 12 countries

    Get PDF
    BackgroundExisting research has documented inconsistent findings for the associations among breakfast frequency, physical activity (PA), and sedentary time in children. The primary aim of this study was to examine the associations among breakfast frequency and objectively-measured PA and sedentary time in a sample of children from 12 countries representing a wide range of human development, economic development and inequality. The secondary aim was to examine interactions of these associations between study sites.MethodsThis multinational, cross-sectional study included 6228 children aged 9-11years from the 12 International Study of Childhood Obesity, Lifestyle and the Environment sites. Multilevel statistical models were used to examine associations between self-reported habitual breakfast frequency defined using three categories (breakfast consumed 0 to 2days/week [rare], 3 to 5days/week [occasional] or 6 to 7days/week [frequent]) or two categories (breakfast consumed less than daily or daily) and accelerometry-derived PA and sedentary time during the morning (wake time to 1200h) and afternoon (1200h to bed time) with study site included as an interaction term. Model covariates included age, sex, highest parental education, body mass index z-score, and accelerometer waking wear time.ResultsParticipants averaged 60 (s.d. 25) min/day in moderate-to-vigorous PA (MVPA), 315 (s.d. 53) min/day in light PA and 513 (s.d. 69) min/day sedentary. Controlling for covariates, breakfast frequency was not significantly associated with total daily or afternoon PA and sedentary time. For the morning, frequent breakfast consumption was associated witha higher proportion of time in MVPA (0.3%), higher proportion of time in light PA (1.0%) and lower min/day and proportion of time sedentary (3.4min/day and 1.3%) than rare breakfast consumption (all p0.05). No significant associations were found when comparing occasional with rare or frequent breakfast consumption, or daily with less than daily breakfast consumption. Very few significant interactions with study site were found.ConclusionsIn this multinational sample of children, frequent breakfast consumption was associated with higher MVPA and light PA time and lower sedentary time in the morning when compared with rare breakfast consumption, although the small magnitude of the associations may lack clinical relevance.Trial registrationThe International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE) is registered at(Identifier NCT01722500).Peer reviewe

    ATLANTIC MAMMAL TRAITS: a data set of morphological traits of mammals in the Atlantic Forest of South America

    No full text
    Univ Estadual Paulista, UNESP, Dept Ecol, Inst Biociencias, BR-13506900 Rio Claro, SP, BrazilUniv Fed Santa Catarina, Ctr Ciencias Biol, Dept Ecol & Zool, Florianopolis, SC, Brazil|Caipora Cooperat, Florianopolis, SC, BrazilUniv Estadual Santa Cruz, Programa Posgrad Ecol & Conservac Biodiversidade, Lab Ecol Aplicada Conservacao, Ilheus, BA, BrazilUniv Estadual Santa Cruz, CMARF, Ilheus, BA, BrazilUniv Brasilia, Dept Ecol, Inst Ciencias Biol, Lab Ecol Vertebrados, Brasilia, DF, BrazilUniv Fed Santa Maria, Dept Ecol & Evolut, Santa Maria, RS, BrazilUniv Sao Paulo, Inst Biociencias, Dept Zool, Sao Paulo, SP, BrazilUniv Fed Espirito Santo, Ctr Ciencias Humanas & Nat, Dept Ciencias Biol, Vitoria, ES, BrazilUniv Fed Minas Gerais, Inst Ciencias Biol, Dept Biol Geral, Belo Horizonte, MG, BrazilUniv Fed Mato Grosso de Sul, Inst Biociencias, Campo Grande, MS, BrazilUniv Fed Parana, Dept Zool, Curitiba, Parana, BrazilUniv Fed Parana, Programa Posgrad Ecol & Conservcao, Curitiba, Parana, BrazilUniv Estado Rio de Janeiro, Dept Ecol, Rio De Janeiro, RJ, BrazilUniv Estadual Paulista, UNESP, Inst Biociencias, Dept Zool, Rio Claro, SP, BrazilUniv Extremo Sul Catarinense, Programa Posgrad Ciencias Ambientais, Criciuma, SC, BrazilUniv Sao Paulo, ESALQ, Dept Ciencias Biol, Piracicaba, SP, BrazilUniv Nacl Misiones, CONICET, Inst Biol Subtrop, Puerto Iguazu, Misiones, ArgentinaAsociac Civil Ctr Invest Bosque Atlantico, Puerto Iguazu, Misiones, ArgentinaFIOCRUZ Amazonas, Inst Leonidas & Maria Deane, Manaus, Amazonas, BrazilUniv Estadual Paulista, UNESP, Dept Zootecnia, Jaboticabal, SP, BrazilField Museum Nat Hist, Integrated Res Ctr, Chicago, IL 60605 USAUniv Fed Pernambuco, Ctr Biociencias, Dept Zool, Lab Ciencia Aplicada Conservacao Biodiversidade, Recife, PE, BrazilInst Chico Mendes Conservacao Biodiversidade, Ctr Nacl Pesquisa & Conservacao Mamiferos Carnivo, Sao Paulo, BrazilUniv Vale Rio dos Sinos, Sao Leopoldo, RS, BrazilUniv Reg Cariri, Dept Biol, Lab Ecol Mamiferos, Crato, CE, BrazilUniv Fed Rio de Janeiro, Dept Ecol, Lab Vertebrados, Rio De Janeiro, RJ, BrazilUniv Federal Mato Grosso do Sul, Programa Posgrad Ecol & Conservacao, Campo Grande, MS, BrazilIPE, Nazare Paulista, SP, BrazilUniv Fed Minas Gerais, Programa Posgrad Zool, Belo Horizonte, MG, BrazilUniv Estado Minas Gerais, Dept Ciencias Biol, Ibirite, MG, BrazilPREA, Programa Educ Ambiental, Juiz De Fora, MG, BrazilChinese Acad Sci, Inst Zool, Key Lab Zool Systemat and Evolut, Beijing, Peoples R ChinaMinist Salud Nacion, Inst Nacl Med Trop INMeT, Puerto Iguazu, Misiones, ArgentinaUniv Fed Vicosa, Dept Engn Florestal, Vicosa, MG, BrazilUniv Fed Goias, Inst Biociencias, Jatai, Go, BrazilInst Chico Mendes Conservacao Biodiversidade ICMB, Ctr Nacl Pesquisa & Conservacao Primatas Brasilei, Joao Pessoa, PB, BrazilCtr Rescate Fauna Silvestre Guira Oga, Puerto Iguazu, ArgentinaFdn Hist Nat Felix de Azara, Buenos Aires, ArgentinaProjeto Carnivoros Iguacu, Foz Do Iguacu, PR, BrazilUniv Estadual Paulista, Dept Med Vet Prevent & Reprod Anim, Fac Ciencias Agr & Vet Jaboticabal, Jaboticabal, SP, BrazilUniv Fed Integracao Latinoamer, Inst Latinoamer Ciencias Vida & Nat, Foz Do Iguacu, PR, BrazilUniv Fed Sao Paulo, Dept Ciencias Ambientais, Diadema, SP, BrazilUniv Fed Paraiba, Dept Sistemat & Ecol, Lab Mamiferos, Joao Pessoa, Paraiba, BrazilIUCN Peccary Specialist Grp, Campo Grande, MS, BrazilWWF Brazil, Campo Grande, MS, BrazilChicago State Univ, Dept Biol Sci, Chicago, IL USAUniv Fed Rio de Janeiro, Nucleo Ecol & Desenvolvimento Socioambiental Maca, Macae, RJ, BrazilUniv Vila Velha, Programa Posgrad Ecol Ecossistemas, Vila Velha, ES, BrazilUniv Fed Rio de Janeiro, Museu Nacl, Dept Vertebrados, Rio De Janeiro, RJ, BrazilUniv Fed Bahia, Programa Posgrad Ecol, Salvador, BA, BrazilUniv Fed Paraiba, Dept Sistemat & Ecol, Programa Posgrad Ciencias Biol Zool, Lab Mamiferos, Joao Pessoa, Paraiba, BrazilUniv Fed Sao Paulo, Dept Ciencias Ambientais, Diadema, SP, BrazilWeb of Scienc

    NEOTROPICAL ALIEN MAMMALS: a data set of occurrence and abundance of alien mammals in the Neotropics

    No full text
    Biological invasion is one of the main threats to native biodiversity. For a species to become invasive, it must be voluntarily or involuntarily introduced by humans into a nonnative habitat. Mammals were among first taxa to be introduced worldwide for game, meat, and labor, yet the number of species introduced in the Neotropics remains unknown. In this data set, we make available occurrence and abundance data on mammal species that (1) transposed a geographical barrier and (2) were voluntarily or involuntarily introduced by humans into the Neotropics. Our data set is composed of 73,738 historical and current georeferenced records on alien mammal species of which around 96% correspond to occurrence data on 77 species belonging to eight orders and 26 families. Data cover 26 continental countries in the Neotropics, ranging from Mexico and its frontier regions (southern Florida and coastal-central Florida in the southeast United States) to Argentina, Paraguay, Chile, and Uruguay, and the 13 countries of Caribbean islands. Our data set also includes neotropical species (e.g., Callithrix sp., Myocastor coypus, Nasua nasua) considered alien in particular areas of Neotropics. The most numerous species in terms of records are from Bos sp. (n = 37,782), Sus scrofa (n = 6,730), and Canis familiaris (n = 10,084); 17 species were represented by only one record (e.g., Syncerus caffer, Cervus timorensis, Cervus unicolor, Canis latrans). Primates have the highest number of species in the data set (n = 20 species), partly because of uncertainties regarding taxonomic identification of the genera Callithrix, which includes the species Callithrix aurita, Callithrix flaviceps, Callithrix geoffroyi, Callithrix jacchus, Callithrix kuhlii, Callithrix penicillata, and their hybrids. This unique data set will be a valuable source of information on invasion risk assessments, biodiversity redistribution and conservation-related research. There are no copyright restrictions. Please cite this data paper when using the data in publications. We also request that researchers and teachers inform us on how they are using the data
    corecore