Abstract This article describes the use of a low-cost softwaredefined radio applied to an Electromagnetic Compatibility (EMC) test. The proposed system is indicated for cases when an autonomous instrument is better suited, i.e., when there is no need for external signal or power connections. As a proof of concept, a metallic cavity has its shielding parameter measured, and the obtained results illustrate the kind of outputs the instrument can provide. Details concerning the hardware and software utilized are mentioned, alongside observed pitfalls and trade-offs. It is an affordable and versatile method, which can replace the traditional use of spectrum analyzers and receivers, especially in precompliance tasks. lowcost low cost EMC (EMC test suited ie i e i.e. connections concept measured provide mentioned tradeoffs. tradeoffs trade offs. offs trade-offs method receivers tasks i.e

Abstract Numerical and experimental analysis of visible light communication (VLC) systems based on orthogonal chirp division multiplexing (OCDM) and orthogonal frequency division multiplexing (OFDM) are presented in this paper. Unlike most of the related publications, in this work we numerically compared OCDM and OFDM based VLC systems with the same equalization process, i.e., employing an one tap equalizer (OTE) in both systems. Simulation results in line-of-sight VLC channels show that both systems have the same performance when baseband multicarrier signals are used. The impact of the optical modulation index and the bias current of a previously characterized light-emitting diode were also evaluated. Nevertheless, the experimental demonstrations, in which bandpass signals were used due to the bandpass characteristic of the exploited setup, show that OFDM-based system outperforms the VLC links with OCDM signals, when the OTE equalizer is used in both systems. The performance of the OCDM-based system was improved by using a zero forcing frequency domain equalizer. (VLC (OCDM (OFDM paper publications process ie i e i.e. (OTE lineofsight line sight lightemitting emitting evaluated Nevertheless demonstrations setup OFDMbased OCDMbased i.e

RESUMO Nos últimos anos, tem-se observado considerável adesão das instituições de patrimônio cultural ao processo de digitalização e disponibilização de seus dados de acervos na internet, proporcionando maior acessibilidade e democratização de conhecimento científico e cultural à sociedade. Diante deste fato, dados se tornam recursos importantes e valiosos para o século XXI, e considerações acerca da importância da qualidade para publicação de conjunto de dados na internet também surgiram nas últimas décadas em contextos diversos. Porém, apesar desses esforços, apenas investir na digitalização de objetos culturais não é suficiente, visto que questões sobre qualidade de dados frequentemente não são levantadas, considerando os diversos tipos de bancos de dados e sistemas de informação existentes. Esta pesquisa tem por objetivo identificar e analisar estudos sobre avaliação de qualidade de dados em acervos de patrimônio cultural, a partir de uma revisão sistemática da literatura no âmbito nacional e internacional. A partir da revisão de literatura realizada, ficou claro que há pouca evidência de um processo de garantia de qualidade de dados e de metadados testado que comprovasse sua eficácia em um ou mais repositórios digitais. Além disso, não há evidência de qualquer processo de avaliação de qualidade que fosse eficaz e transferível para outros contextos, ou seja, outros tipos de repositórios. Ressalta-se, ainda, a escassez de procedimentos que utilizam um modelo de catalogação de referência no campo do Patrimônio Cultural para fundamentar uma avaliação de qualidade de dados em bases de dados neste domínio. anos temse sociedade fato XXI Porém esforços suficiente levantadas existentes internacional realizada digitais disso seja Ressaltase, Ressaltase Ressalta se, Ressalta-se ainda domínio

ABSTRACT In recent years, there has been a considerable trend among cultural heritage institutions to digitize and make their collection data available on the internet, providing greater accessibility and democratization of scientific and cultural knowledge to society. As a result, data has become an important and valuable resource for the 21st century, and considerations about the importance of data quality for publishing data sets on the internet have also emerged in various contexts over the last few decades. However, despite these efforts, investing solely in the digitalization of cultural objects is not enough, as data quality issues are often not raised, considering the various types of databases and information systems that exist. This research aims to identify and analyze studies on data quality evaluation in cultural heritage collections, based on a systematic review of national and international literature. Based on the literature review conducted, it became clear that there is little evidence of a tested data quality and metadata assurance process that proves its effectiveness in one or more digital repositories. Additionally, there is no evidence of any quality evaluation process that is effective and transferable to other contexts, i.e., other types of repositories. It should also be emphasized that there is a shortage of procedures that use a reference cataloging model in the field of Cultural Heritage to support a data quality evaluation in databases in this domain. years society result st century decades However efforts enough raised exist collections conducted repositories Additionally ie i e i.e. domain i.e

RESUMO Na busca por compreender o(s) sentido(s) sobre o sujeito colonizado, analisamos, por meio do aparato teórico-metodológico de Pêcheux e Orlandi, o funcionamento do discurso do colonizador em um arquivo constituído por relatos, cartas, diários de viajantes e de missionários europeus, além de tratados de naturalistas do século XV ao XIX. Partindo da designação do sujeito colonizado pelo sujeito colonizador, identificamos, assim, quatro formações discursivas que chamamos de formação discursiva do outro como bárbaro, do outro como cordial, do outro como exótico e do outro como igual. Tais formações embora emerjam ancoradas em diferentes discursos como o do extermínio, o religioso, o científico e o jurídico, fazem parte de uma mesma formação ideológica, a colonialista. Essa formação é marcada pelo eurocentrismo e pelo efeito de superioridade do europeu sobre os demais e controla os sentidos desse sujeito não-europeu, não-branco e não-cristão até os dias de hoje, ainda que de forma diferente, dissimulando tais efeitos de sentido. s o(s sentido sentido(s analisamos teóricometodológico teórico metodológico Orlandi relatos cartas europeus XIX identificamos assim bárbaro cordial igual extermínio religioso jurídico ideológica colonialista nãoeuropeu, nãoeuropeu não europeu, não-europeu nãobranco branco nãocristão cristão hoje diferente

ABSTRACT The aim of this study is to understand the meaning(s) of the colonized subject. To this end, I analyzed documents such as reports, letters, journals of European travellers and missionaries, as well as treaties of naturalists from the fifteenth to the nineteenth century, containing the colonizer’s discourse, using the theoretical-methodological apparatus of Pêcheux and Orlandi. The starting point was the designation of the colonized subject by the colonizing subject, which identified four discursive formations of the Other that could be qualified as barbaric, cordial, exotic or equal. Such discoursive formations figure in different discourses on extermination, religion, science, and law and are part of the same ideological formation, i.e., the colonialist, which is marked by Eurocentrism and by the effect of superiority of the European on others. This ideological formation controls the meanings of the non-European, non-white, and non-Christian subject to this day, although in a different way, hiding such effects of meaning. meaning s meaning(s end reports letters missionaries century colonizers colonizer discourse theoreticalmethodological theoretical methodological Orlandi barbaric cordial equal extermination religion science ie i e i.e. colonialist others nonEuropean, nonEuropean non European, non-European nonwhite, nonwhite white, white non-white nonChristian Christian day way i.e

RESUMO O objetivo deste estudo foi determinar o pH e as concentrações de cálcio (Ca2+), magnésio (Mg2+), cloro (Cl-), sódio (Na+) e potássio (K+) na secreção da glândula mamária de éguas Mangalarga Marchador (MM) no período pré-parto, a fim de determinar o melhor método para predizer proximidade do parto na raça. Quarenta e duas éguas MM foram avaliadas diariamente a partir dos 310 dias de gestação até o parto. O pH, aferido pelo pHmetro e por fitas reagentes, e os eletrólitos Ca2+, Mg2+ e Cl- apresentaram diferenças significativas em suas concentrações nos últimos 10 dias pré-parto (P<0,05). A diminuição significativa dos valores médios de pH (pHmetro= 6,67±0,42; fitas reagentes= 6,23±0,53) e o aumento significativo nas concentrações médias de Ca2+ (12,6±5,8mmol/L) e Mg2+ (10,93±3,66mmol/L) foram observados 24 horas pré-parto (P<0,0001). As concentrações de cloro diminuíram significativamente oito dias antes do parto (P<0,0001), porém continuaram sem alteração até o momento da parição. O pH da secreção foi eficaz para predizer o momento do parto. Valores quantitativos obtidos por meio do pHmetro apresentaram maior acurácia em comparação às fitas de pH, porém obteve-se forte correlação entre os dois métodos. Cálcio e magnésio foram os únicos eletrólitos que apresentaram alterações significativas no pré-parto imediato e são indicadores mais precisos de quando não esperar o parto.

ABSTRACT The objective of this study was to determine pH and the concentrations of Calcium (Ca2+), Magnesium (Mg2+), Chloride (Cl-), Sodium (Na+), Potassium (K+) and Calcium (Ca2+) in the mammary gland secretion in pre-foaling Mangalarga Marchador (MM) mares to determine the best method to predict parturition in the breed. Forty-two pregnant MM mares were evaluated once daily from 310 days of gestation until parturition. Mammary gland secretion pH, measured by pH meter and pH paper strip, Mg2+, Ca2+ and Cl- levels significantly changed during the last 10 days prior to parturition (p<0.05). The lowest pH mean value (pH meter=6.67±0.42; pH strip=6.23±0.53) and significantly higher mean concentrations of Ca2+ (12.6±5.8mmol/L) and Mg2+ (10.93±3.66mmol/L) were obtained 24 hours prior to foaling (p<0.0001). Chloride levels reduced significantly 8 days prior to parturition (p<0.0001) but remained unchanged until the due date. Mammary gland pH secretion, measured by pH meter and pH paper strip, was effective to predict parturition. Quantitative pH values obtained with the pH meter had a greater accuracy in comparison to pH paper strips, but a strong correlation was found between both methods. Calcium and magnesium were the only electrolytes that changed in concentration immediately prior to parturition and are better indicators of when not to expect foaling.

Resumo O objetivo deste estudo é investigar as capacidades de diferentes métodos de análise de sensibilidade global aplicados à simulação do desempenho de edificações, i.e. Morris, Monte Carlo, Projeto de Experimentos, e Sobol. Uma edificação comercial de zona única localizada em Florianópolis, sul do Brasil, foi utilizada como estudo de caso. Quinze entradas relacionadas às variáveis de projeto foram consideradas, tais como as propriedades térmicas do envelope construtivo, orientação solar, e características das aberturas. As medidas de desempenho foram as cargas anuais de aquecimento e resfriamento. Foi constatado que cada método apresenta diferentes capacidades visuais e medidas de interpretação, mas, em geral, houve pouca diferença nas variáveis mais ou menos influentes reportadas. Para as cargas térmicas de aquecimento, as transmitâncias térmicas foram as variáveis mais influentes, enquanto para as cargas de resfriamento, as absortâncias solares se destacaram. O método de Morris se mostrou o método mais viável devido à sua simplicidade e baixo custo computacional. Contudo, como os modelos de simulação ainda são complexos e não-lineares, os métodos baseados na variância, como o Sobol, ainda são necessários para propósitos genéricos.

Abstract The objective of this study is to investigate the capabilities of different global sensitivity analysis methods applied to building performance simulation, i.e. Morris, Monte Carlo, Design of Experiments, and Sobol methods. A single-zone commercial building located in Florianópolis, southern Brazil, was used as a case study. Fifteen inputs related to design variables were considered, such as thermal properties of the construction envelope, solar orientation, and fenestration characteristics. The performance measures were the annual heating and cooling loads. It was found that each method can provide different visual capabilities and measures of interpretation, but, in general, there was little difference in showing the most influent and least influent variables. For the heating loads, the thermal transmittances were the most influent variables, while for the cooling loads, the solar absorptances stood out. The Morris method showed to be the most feasible method due to its simplicity and low computational cost. However, as the building simulation model is still complex and non-linear, the variance-based method such as the Sobol is still necessary for general purposes.

RESUMO Em algumas construções são necessárias intervenções para restabelecer ou aumentar a capacidade de suporte da estrutura antes de atingir um estado limite. Os Polímeros Reforçados com Fibra de Carbono (CFRP) são um dos mais adequados como elemento de reforço estrutural por ser um material de alto desempenho mecânico e elevado módulo de elasticidade, resistência à fadiga e baixo peso específico. Este trabalho teve como objetivo analisar a eficiência de materiais compósitos de Polímeros Reforçados com Fibras de Carbono (CFRP) como reforço estrutural em vigas de concreto armado, por meio de ensaios experimentais e simulação numérica. Nos ensaios, a armadura da viga de concreto foi dimensionada com resistência insuficiente ao cisalhamento. Nas vigas de referência, inicialmente, surgiram fissuras de cisalhamento, e em seguida as vigas romperam-se à flexão. Nas vigas com CRFP, que foram dimensionadas como reforço ao cisalhamento, as vigas não apresentaram fissuras de cisalhamento e romperam à flexão. Não houve acréscimo significativo da carga máxima. Em apenas uma viga houve o descolamento da fibra de carbono em um dos bordos da estrutura, mostrando boa eficiência do adesivo utilizado. As simulações numéricas foram realizadas utilizando o Método dos Elementos Finitos (MEF) no software ANSYS 18.1. Os resultados obtidos no modelo numérico ficaram próximos aos resultados experimentais.

ABSTRACT Eventually, some buildings must be restored or their structural capacity increased. Carbon Fiber Reinforced Polymers (CFRP) are the most indicated as structural reinforcement due to their high mechanical performance with high Young’s modulus, resistance to fatigue and low density. This work aimed at the efficiency of composite materials of CFRP as a structural reinforcement in concrete beams. The mechanical behavior is studied by means of experimental tests and numerical simulations. Steel bars and stirrups were designed with insufficient resistance to shear efforts. In reference beams, i.e. without CFRP reinforcement, shear cracks appear initially, but then the beams failed in flexure. The CFRP reinforcement were designed to increase shear capacity. Thus, shear cracks do not appear and the beams failed in flexure. The maximum load values did not increase significantly. Only one CFRP strip detached during the tests, indicating a good efficiency of the adhesive used. Numerical simulations were performed using the Finite Element Method (FEM) in ANSYS 18.1 software. The numerical and experimental results are in good agreement.

ABSTRACT BACKGROUND: Dengue is an arbovirus that has caused serious problem in Brazil, putting the public health system under severe stress. Understanding its incidence and spatial distribution is essential for disease control and prevention. OBJECTIVE: To perform an analysis on dengue incidence and spatial distribution in a medium-sized, cool-climate and high-altitude city. DESIGN AND SETTING: Ecological study carried out in a public institution in the city of Garanhuns, Pernambuco, Brazil. METHODS: Secondary data provided by specific agencies in each area were used for spatial analysis and elaboration of kernel maps, incidence calculations, correlations and percentages of dengue occurrence. The Geocentric Reference System for the Americas (Sistema de Referência Geocêntrico para as Américas, SIRGAS), 2000, was the software of choice. RESULTS: The incidence rates were calculated per 100,000 inhabitants. Between 2010 and 2019, there were 6,504 cases and the incidence was 474.92. From 2010 to 2014, the incidence was 161.46 for a total of 1,069 cases. The highest incidence occurred in the period from 2015 to 2019: out of a total of 5,435 cases, the incidence was 748.65, representing an increase of 485.97%. Population density and the interaction between two climatic factors, i.e. atypical temperature above 31 °C and relative humidity above 31.4%, contributed to the peak incidence of dengue, although these variables were not statistically significant (P > 0.05). CONCLUSION: The dengue incidence levels and spatial distribution reflected virus and vector adjustment to the local climate. However, there was no correlation between climatic factors and occurrences of dengue in this city.

BACKGROUND: The original structure of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) has been contested in several languages. OBJECTIVE: To assess the structural validity of the Brazilian version of WOMAC among patients with knee osteoarthritis. DESIGN AND SETTING: Structural validity study conducted at physiotherapy clinics and primary healthcare units. METHODS: The study included males and females aged 40 to 80 years who were all native Brazilian Portuguese speakers, with knee pain in the previous six months and a diagnosis of knee osteoarthritis. We used exploratory factor analysis (EFA) followed by confirmatory factor analysis (CFA) with implementation of a polychoric matrix and the robust diagonally weighted least squares (RDWLS) extraction method. The adequacy of the model was assessed using the following fit indices: root mean square error of approximation (RMSEA), comparative fit index (CFI), Tucker-Lewis index (TLI), standardized root mean square residual (SRMR) and chi-square/degree of freedom (DF). RESULTS: 203 patients with knee osteoarthritis were included. The model proposed in this study with two factors, i.e. “pain” (items 1, 2, 3 and 4) and “physical function” (items 10, 11, 16, 17, 18, 19, 21 and 22), showed adequate fit indices in CFA: chi-square/DF = 1.30; CFI = 0.976; TLI = 0.970; RMSEA = 0.039; and SRMR = 0.070. The factorial loads ranged from 0.68 to 0.76 for the “pain” domain and 0.44 to 0.62 for the “physical function” domain. CONCLUSION: The Brazilian version of WOMAC with two domains, i.e. “pain” (four items) and “physical function” (eight items), presents the best structure.

ABSTRACT BACKGROUND: The accuracy of magnetic resonance imaging (MRI) for making the diagnosis of subscapularis tears presents wide variation in the literature and there are few prospective studies. OBJECTIVE: To compare the findings from MRI and arthroscopy for diagnosing subscapularis tears. DESIGN AND SETTING: Diagnostic test study performed in a tertiary care hospital. METHODS: We included patients who underwent arthroscopic rotator cuff repair and who had firstly undergone high magnetic field MRI without contrast. The images were independently evaluated by a shoulder surgeon and two musculoskeletal radiologists. Sensitivity, specificity, positive and negative predictive values, accuracy and inter and intra-observer agreement were calculated. RESULTS: MRIs on 200 shoulders were evaluated. The incidence of subscapularis tears was 69.5% (41.5% partial and 28.0% full-thickness). The inter and intra-observer agreement was moderate for detection of subscapularis tears. The shoulder surgeon presented sensitivity of 51.1% to 59.0% and specificity of 91.7% to 94.4%. The radiologists showed sensitivity of 83.5% to 87.1% and specificity of 41% to 45.9%. Accuracy ranged from 60.5% to 73.0%. CONCLUSION: The 1.5-T MRIs without contrast showed mean sensitivity of 70.2% and mean specificity of 61.9% for detection of subscapularis tears. Sensitivity was higher for the musculoskeletal radiologists, while specificity was higher for the shoulder surgeon. The mean accuracy was 67.6%, i.e. lower than that of rotator cuff tears overall.

The term pseudohallucination was originally introduced to characterize hallucinatory phenomena not exhibiting the paradigmatic features of hallucinations. In our context, and directly following Jaspers ‘ description, the term has been used to characterize a specific type of auditory hallucination in schizophrenic patients i.e. the so-called voices. However, this formation is not shared in other contexts. This paper suggests that Jaspers ‘ formulation is inexact and problematic when trying to describe the semiology, philosophical foundations, and aetiology of the phenomenon. In addition, we claim that this lack of etiological and nosological clarity lead to serious doubts about the real utility of the use of the term within current descriptive psychopathology. We conclude by proposing two potential alternatives that the use of the term might have within the field.

Resumen El término pseudoalucinación fue introducido originalmente para designar cualquier fenómeno alucinatorio que no exhibiese todas las características paradigmáticas de las alucinaciones. En nuestro medio, y siguiendo directamente la descripción de Jaspers, se ha empleado el concepto para referirse a un tipo específico de alucinaciones auditivas presentes en personas con esquizofrenia: las voces, otorgándole un valor semiológico especial. Sin embargo, esta tradición diagnóstica no es compartida en otros contextos. El presente trabajo sugiere que la formulación Jasperiana para referirse a las voces como pseudoalucinaciones es inexacta y problemática en lo relativo al valor semiológico asignado, sus bases filosóficas y el origen biológico del fenómeno observado. Junto con esto, proponemos que la falta de claridad etiológica y nosológica que caracterizan esta conceptualización ponen en duda la utilidad de su uso dentro de la psicopatología descriptiva actual. A modo de conclusión, revisamos dos alternativas que el empleo del término podría tomar dentro del campo.

ABSTRACT: Chemical and physical properties of soil can be altered with the successive application of liquid swine manure (LSM), also known as slurry. Therefore, monitoring the impact of LSM is essential to an assessment of the potential agronomic and environmental benefits and risks associated with management practices. The aim of this study was to evaluate the effects of LSM on the chemical and physical attributes of soil under pasture (Cynodon spp.), located in southern Brazil. Four areas were sampled: three areas cultivated with Cynodon spp. pasture with successive applications of 200 m3 ha–1 y–1 of LSM for three, eight and 15 years; and untreated native forest as a reference. The soil attributes evaluated were: organic carbon (OC), active (pH water) and potential acidity (H + Al+ 3), nutrient availability (i.e., P, K, Ca, Mg, Cu and Zn), soil bulk density, macro, micro and total porosity. Successive applications of LSM on pasture reduced soil active acidity, and increased the soil organic C and plant-available N, P, Ca, Mg, Cu and Zn contents. These effects were more intense with time and in the shallowest layers, i.e. 0-10 cm. Excessive increases in P, Cu and Zn in the soil should be carefully monitored to minimize the contamination risks to soil, ground and surface waters. Soil physical attribute changes were more associated with land use (pasture versus native forest) than LSM use, and LSM applications induced slight improvements in the soil structural quality over time.

ABSTRACT. Calcium chloride application on fruits maintains the firmness of fruits, decreases storage breakdown and rot, extends shelf-life, and increases vitamin C and calcium content. Blackberries have low post-harvest durability due to the intrinsic characteristics of their fruits, mainly the high respiratory rate and low firmness, which causes problems in the production chain of fresh fruits. The current study aimed to evaluate the effects of pre-harvest application of calcium chloride on the fruits of ‘Tupy’ blackberry (Rubus spp.). A randomized block design for a factorial scheme was used, i.e. calcium chloride concentrations (0, 1.5, 3, and 4.5%) and number of applications (1, 2, and 3). Multiple applications occurred between 5-day intervals. The results showed that the calcium content in the fruits increased with a single application of 2.2%, but a decrease in mass loss was observed with a 4.5% application. The results also indicated great firmness and ascorbic acid content of fruits of ‘Tupy’ blackberry, in addition to the significant increase in fruit size and mass. However, in general, the content of soluble solids, sugars, antioxidant activity and total polyphenols decreased.

Resumo Partindo da experiência contemporânea das crises econômicas e políticas, determinadas por fatores percebidos como incontroláveis, este artigo retoma algumas das mais importantes perspectivas historiográficas do século XIX ao XXI sobre o fenômeno. As teorias de colapso e de tempo cíclico são examinadas de um ponto de vista que busca estabelecer não só o conteúdo dos conceitos envolvidos como também a modalidade de sua ocorrência. Trata-se de apreender como cada teoria explica se a ocorrência das fases de um ciclo ou da derrocada de um sistema social resulta de condições casuais ou necessárias.

Abstract Taking as its starting-point the current experience of economic and political crises worldwide determined by elements seen as uncontrollable, this article resumes some of the main historiographical perspectives from the XIX-XXI century on the phenomenon. Theories of collapse and cyclical time are examined from a point of view that seeks to grasp not only the content of concepts but also their logical modality, i.e. how each theory explains the occurrence of the alternating phases in a cycle or of the debacle of a social system results from casual or necessary conditions.

Although rodents can move fast, they are in general considered non-cursorial mammals, with the notable exception of some species within the suborder Caviomorpha which are convergent with small-sized artiodactyls. The mara, Dolichotis patagonum (average body mass: 8 kg), is a member of the family Caviidae which occupies relatively open habitats in southern South America, and shows remarkable anatomical traits associated to fast locomotion. These include elongated limbs, especially their distal segments, a digitigrade foot posture, and muscles attached near limb joints. However, its locomotor behavior is not yet well understood. Here we focus on the mara’s locomotor kinematics, especially on the gaits performed at different speeds, and provide new data and analyses. By means of high-speed video-recordings, it was observed that maras use lateral walk at low speeds and pace at moderate speeds. By implementing half bound maras reached their maximum speed at 36 km/h, i.e. 14.3 body length/s. It was also confirmed that maras are able to perform pronking, a probable alarm or fitness signal. Kinematic parameters (e.g. duty factor; stride frequency), and comparisons of running speed with other caviomorph and artiodactyl species are also provided.

Aunque relativamente veloces, los roedores en general son considerados mamíferos no cursoriales, con la notable excepción de algunas especies dentro del suborden Caviomorpha, las que son consideradas convergentes con artiodáctilos de pequeño tamaño. La mara Dolichotis patagonum, es una especie perteneciente a la Familia Caviidae que se distribuye en hábitats relativamente abiertos de la porción sur de Sudamérica. Las maras presentan una anatomía especialmente adecuada para alcanzar elevadas velocidades de desplazamiento, incluyendo extremidades alargadas (especialmente sus segmentos distales), una postura digitígrada, e inserciones musculares cercanas a las articulaciones de los miembros. En el presente trabajo nos enfocamos en la cinemática de la locomoción de la mara, especialmente en el tipo de paso (en inglés “gait”) utilizado a diferentes velocidades, aportando nuevos datos y análisis. Mediante el uso de video filmación de alta velocidad, se observó que las maras utilizan la caminata lateral a bajas velocidades, mientras que la marcha al paso (a veces denominada ambladura) se utiliza a velocidades moderadas. Mediante el medio salto las maras alcanzaron su velocidad máxima, la cual fue de 36 km/h, i.e. 14.3 longitud corporal/s. Se confirmó también que las maras son capaces de realizar pronking, probablemente una señal de alarma o de fortaleza física. Se calcularon parámetros cinemáticos tales como el factor de carga, la longitud y la frecuencia del paso. La velocidad y los tipos de paso utilizados por las maras fueron comparados con los de otras especies de roedores caviomorfos y de artiodáctilos de pequeño tamaño corporal.