bluuebunny/crossref_metadata_2025 huggingface dataset:
¿Otro dinero es posible? Conexiones entre la mercancía dineraria dentro de la teoría del valor-trabajo de 'Das Kapital', el bitcoin y la descentralización de la economía
Authors: Morales Bonilla Cristopher
Published: September 2020

En las últimas décadas, el nacimiento de las criptomonedas ha venido a desafiar el monopolio del papel moneda controlado por los bancos centrales nacionales y sus respectivos Estados. A partir de una concepción descentralizadora de la economía, monedas digitales como el Bitcoin han intentado sustituir al dinero tradicional como una nueva forma de relación económica más democrática. Sin embargo, es necesario confrontar estos nuevos modelos de intercambio económico con los análisis de Karl Marx en Das Kapital para comprobar si, realmente, suponen una alternativa eficaz al capitalismo o si recaen en formas nuevas de relaciones capitalistas.
Bayesian Estimation and Economic Analysis of Under-Replicated Field Trials With a Linear Response Plateau Function
Authors: Cho Whoi , Lambert Dayton M. , Fornah Alimamy , Raun William R.
Published: September 2020

The linear response with plateau (LRP) is widely used in agronomic and agricultural economic studies of crop yield response. This empirical example uses data from an under-replicated experiment to compare maize (Zea maize L.) yield response to nitrogen under different plant and corridor row spacing. Not all replications received a 0-nitrogen rate, making estimation of the LRP difficult because data for the intercept terms is absent. We leverage information from other treatments using Bayesian methods to estimate the yield response of each treatment using a LRP function, given limited replication and absence of check plots for some treatments. We use a linearized LRP, which bypasses using the “min” operator typically required to estimate LRP functions. Economically optimal nitrogen rates were determined and net returns from treatments compared from the perspective of risk-averse producers. The wide plant/narrow row treatment was most profitable when the decision rule was to apply nitrogen. The statistical procedure used here may be useful for exploratory analyses of pilot agronomic trials that may include unbalanced and under-replicated treatments.
Trichoderma Activity in Seed Germination, Promoting Seedling Growth and Rhizocompetence in Tomato Plants
Authors: Montalvão S. C. L. , Marques E. , Silva J. B. T. , Silva J. P. , Mello S. C. M.
Published: September 2020

Tomato is one of the most important plant species from an economic and social point of view. Nowadays, there is a growing interest in the use of beneficial microorganisms in agriculture, and some of them are being commercialized as biopesticidal and biofertilizer formulations. Therefore, the aim of this study was to evaluate the ability of twenty (20) Trichoderma isolates to stimulate seed germination, colonize the roots, and promoting growth on tomato seedlings. In laboratory tests, it was possible to observe germination induction and longer root length, in addition to greater length of hypocotyls. However, in some cases, the presence of cotyledon lesions in the seedlings was observed, but without interference in the number and vigor of seedlings from inoculated seeds. In the greenhouse, the action of isolates as growth promoters was verified, due to the increase in the weight and length of roots and the aerial part of tomato plants. Twelve isolates were selected for the rhizocompetence assay, in which the ability to colonize the rhizosphere and also the plant rhizoplane was observed. None of the tests showed negative results in the evaluated parameters.
The Role of Development Aid in Agriculture in the Common Market for Eastern and Southern Africa: A Panel Vector Autoregression Analysis
Authors: Gondwe Grace , Mbonigaba Josue
Published: September 2020

This paper assessed the impact of foreign aid on agricultural productivity and growth in the Common Market for Eastern and Southern Africa (COMESA), using panel vector autoregressive methods. The results show a significant unidirectional causality from agricultural growth to foreign aid and thus confirming the theoretical dispositions of the developmental role of foreign aid. However, instead of complementing domestic resources in this regard, the results showed that foreign aid in the sector substitutes government financing, which effectively reduces its effectiveness. A mismatch in government resources and aid allocations to a sub-sector erodes the synergy that should typically exist between donor aid and government expenditure in a sector. A policy shift towards Result-Based (Aid on Delivery) approaches in aid disbursements will be critical to eliminating fungible resources. Misalignment of aid allocations that are inconsistent with the relative importance of subsectors in the sectoral development goals further undermines the potency of aid. A better understanding of the contribution of the various sub-sectors to the overall growth of the agriculture sector will be crucial for equitable resource allocation and enhanced aid effectiveness. Moreover, the higher impact of domestic resources compared to foreign aid calls for policies to increase domestic resource mobilization and a broader focus on reducing aid dependency.
Yeast Potential for the Biological Control of Colletotrichum musae
Authors: Rodrigues Claudineia B. , Barabasz Renata F. , Silva Rayssa H. da , Sustakowski Monica C. , Kuhn Odair J. , Carvalho Jeferson C. , Zimmermann Juliano , Reis Willian dos , Oliveira Vinícius H. D. de , Kempa Ana K. , Stangarlin José R.
Published: September 2020

One of the factors that cause the greatest loss of fruit in post-harvest are diseases, especially rotting such as anthracnose. Therefore, this work aimed to test the potential of the yeasts Candida albicans, Pichia guilliermondii, Rhodotorula glutinis, Saccharomyces cerevisiae, Cryptococcus laurentii and Zygoascus hellenicus in the control of Colletotrichum musae in bananas in post-harvest period. To test the potential of these yeasts, the effect of volatile and non-volatile compounds, culture pairing and spore germination of the fungus C. musae in vitro was evaluated. In post-harvest fruits, the area below the mycelial growth curve (AACCM) and the area below the disease progress curve (AACPD) were evaluated. The yeasts C. albicans, R. glutinis, S. cerevisiae and P. guilliermondii produced volatile compounds with antifungal action, reducing the development of the fungus in vitro. The yeast R. glutinis was shown to be more efficient in reducing mycelial growth in vitro of the fungus through the production of non-volatile compounds. The yeasts C. albicans and P. guilliermondii showed the presence of an inhibition halo. All yeasts induced the germination of C. musae conidia and were not efficient in controlling anthracnose in vivo.
Analysis of Leaf Pigments of SJ-02 Cocoa Seedlings Under Different Irrigation Depths and Cultivation Containers
Authors: Oliveira Vinicius de Souza , Silveira Stefany Sampaio , Posse Robson Prucoli , Silva Laís Gertrudes Fontana , Sallin Valeria Pancieri , Pancieri Gabriel Sossai , Sellin Matheus Pancieri , Guerra Victor Luchi , Souza Carlos Alverto Spaggiari , Costa Geilson Silva , Posse Sheila Cristina Prucoli , Arantes Sara Dousseau , Schmildt Omar , Schmildt Edilson Romais
Published: September 2020

The analysis of leaf pigments helps to understand the behavior of plant species under stress conditions. Thus, the objective of this study was to evaluate the amount of leaf pigments in SJ-02 cocoa seedlings under different irrigation depths and cultivation containers. The experiment took place at the Federal Institute of Espírito Santo, Campus Itapina, in Colatina, a city located in the northwest of the State of Espírito Santo, Brazil. A total of 144 seedlings were used, distributed in a completely randomized design, in a factorial scheme (6 × 3), where the first factor consisted of six different irrigation depths: 4; 6; 8; 10; 12 and 14 mm d-1 and the second one consisted of three different cultivation containers: polypropylene bags with dimensions of 10 × 20, 15 × 25 and 13 × 35, totalling 18 treatments, with eight repetitions. Seventy-four days after sowing, total chlorophyll content, flavonoid index and anthocyanin index were evaluated. There was no interaction between the factors studied. The 7 mm d-1 irrigation depth is the most suitable because it is practical in water management. Significance was not observed between the different cultivation containers.
Auka openheit om sjølvmordstankar
Authors: Loddervik Camilla
Published: September 2020

Meir enn 150 000 vestlendingar fekk med seg Helse Vest sin folkeopplysingskampanje for å førebyggje sjølvmord. Det viser ei befolkningsundersøking gjennomført av Epinion. Det er ein klar tendens til at fleire veit at openheit om sjølvmord er viktig og kor dei kan vende seg for å få hjelp.
Ny veileder for presse og andre publisister
Authors: Holmesland Hanne
Published: September 2020

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Vivat selvmordsforebygging, en verdifull tjueåring
Authors: Møller Ann-Jorid , Lindmark Johan , Tallaksen Dag Willy
Published: September 2020

Vivat selvmordsforebygging (Vivat) har arbeidet i Norge i 20 år. Verdimessige grunnantakelser som respekt og omsorg for enkeltmennesker samt troen på at selvmord kan forhindres via opplæring, har stått sentralt i alle disse årene. Vivat er tilstede over hele landet, våre 170 kursledere har så langt hatt mer enn 50 000 deltakere på våre kurs. På denne måten har Vivat trolig vært med på redusere tabu og å gjøre våre lokalsamfunn bedre beskyttet mot selvmord.
Nøkkelen
Authors: Brynie Lisen
Published: September 2020

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Alteration of Hematologic Parameters in Morphine-Dependent Rats by Long-Term Administration of Orexin Type 1 Receptor Antagonist
Authors: Piri Zahra , Kourosh Arami Masoumeh , Shahidi Minoo , Nazari Somayeh
Published: September 2020

Background: Orexin peptides that are produced in the hypothalamic nuclei are involved in opioid dependence. Objectives: In the current study, we aimed to figure out the effect of orexin type 1 receptor (OXR1) antagonist on hematologic factors in morphine-dependent rats. Patients and Methods: Male Wistar rats were rendered morphine-dependent by subcutaneous injection of morphine sulfate (10 mg/Kg) at an interval of 12 hours twice a day for seven days. In the control and treatment groups, SB-334867 vehicle and SB-334867 were injected during postnatal days 1 to 30 (P1-P30) daily and then before each morphine injection during for days. Data were analyzed using unpaired two-tailed Student t-test and one-way analysis of variance (ANOVA). The defined level of statistical significance was P < 0.05. Results: Morphine increased white blood cell count (WBC), platelet cell count, and hematocrit. Application of SB-334867 reduced several hematologic factors in morphine-dependent rats, including mean corpuscular hemoglobin concentration (MCHC), WBC, and platelet count compared to morphine-dependent rats. Conclusions: Inhibition of OXR1 may improve morphine-induced changes in hematologic factors in morphine-dependent rats.
The Virtue of Somnience
Authors: Dahm Brandon ,   Philosophy Documentation Center
Published: September 2020

It’s strange that sleep doesn’t come up more when we think of virtue. In this paper, I argue that there is a virtue concerned with sleep, which I call “somnience,” and I develop an account of this virtue. My account of somnience builds on the virtue tradition of Aristotle and Aquinas and recent research about the nature of sleep. In the first section I argue that there is a need for such a virtue. Next, I argue that somnience is a form of temperance. Third, I show how somnience connects to a number of other virtues, which helps us fill out the nature of the virtue. Finally, I argue that sleep also relates to virtue by aiding virtue formation.
The Not-So-Prolife Leviathan
Authors: Courtland Shane D. ,   Philosophy Documentation Center
Published: September 2020

In an article that appeared in American Catholic Philosophical Quarterly, Kody Cooper argued that “to be a Hobbesian is to be prolife.” In this essay, I will provide an argument that rebuts Cooper’s prolife interpretation of Hobbes. First, I will argue that Cooper has, without argument, committed an equivocation between a person’s personal identity and his or her organism. Resolving this ambiguity would allow for an interpretation of Hobbes that can consistently reject the notion that the life of a person “begins at conception.” Second, I will show that Cooper fails to take into account the significant costs that are placed upon prospective mothers and is therefore not able to judge whether or not aborting a fetus is within a mother’s enlightened self-interest. Third, I will, contrary to Cooper, show why it may be acceptable for a Hobbesian sovereign to construct a legal regime that is permissive of abortion.
Implicit Bias and Reform Efforts in Philosophy
Authors: Holroyd Jules , Saul Jennifer ,   University of Arkansas Press
Published: September 2020

This paper takes as its focus efforts to address particular aspects of sexist oppression and its intersections, in a particular field: it discusses reform efforts in philosophy. In recent years, there has been a growing international movement to change the way that our profession functions and is structured, in order to make it more welcoming for members of marginalized groups. One especially prominent and successful form of justification for these reform efforts has drawn on empirical data regarding implicit biases and their effects. Here, we address two concerns about these empirical data. First, critics have for some time argued that the studies drawn upon cannot give us an accurate picture of the workings of prejudice, because they ignore the intersectional nature of these phenomena. More recently, concerns have been raised about the empirical data supporting the nature and existence of implicit bias. Each of these concerns, but perhaps more commonly the latter, are thought by some to undermine reform efforts in philosophy. In this paper, we take a three-pronged approach to these claims. First, we show that the reforms can be motivated quite independently of the implicit bias data, and that many of these reforms are in fact very well suited to dealing with intersectional worries. Next, we show that in fact the empirical concerns about the implicit bias data are not nearly as problematic as some have thought. Finally, we argue that while the intersectional concerns are an immensely valuable criticism of early work on implicit bias, more recent work is starting to address these worries.
Including Trans Women Athletes in Competitive Sport
Authors: Ivy Veronica , Conrad Aryn ,   University of Arkansas Press
Published: September 2020

In this paper, we examine the scientific, legal, and ethical foundations for inclusion of transgender women athletes in competitive sport, drawing on IOC principles and relevant Court of Arbitration for Sport decisions. We argue that the inclusion of trans athletes in competition commensurate with their legal gender is the most consistent position with these principles of fair and equitable sport. Biological restrictions, such as endogenous testosterone limits, are not consistent with IOC and CAS principles. We explore the implications for recognizing that endogenous testosterone values are a ‘natural physical trait’ and that excluding legally recognized women for high endogenous testosterone values constitutes discrimination on the basis of a natural physical trait. We suggest that the justificatory burden for such prima facie discrimination is unlikely to be met. Thus, in place of a limit on endogenous testosterone for women (whether cisgender, transgender, or intersex), we argue that ‘legally recognized gender’ is most fully in line with IOC and CAS principles.
Passive Empowerment
Authors: Khader Serene ,   University of Arkansas Press
Published: September 2020

In a world where paid work is touted as a development panacea, empowering women has started to look a lot like burdening them. I argue here that this burdening of women is a predictable result of the conception of empowerment as choice or agency. Dominant conceptions of empowerment characterize empowerment as the increase in a person’s ability to do what they choose. Yet conditions of gender equality and poverty structure women’s options such that choosing (among unacceptable alternatives), doing (too much), and doing more (than men) are often both women’s best option and modes of disempowerment. Seeing the way increased agency can be disempowering requires shifting away from the view that social structures disempower by constraining individual agency. We instead need a conception of power as a constraint on individual action to a conception of power as structuring the field of available actions in ways that affect the relative position of social groups. Through a discussion of the gender division of labor and the feminization of responsibility, I argue that a more feminist conception of empowerment will weaken the link between empowerment and individual agency.
Exploring Ethical Assumptions and Bias in Medical Ethics Teaching
Authors: Panizza Silvia ,   Philosophy Documentation Center
Published: September 2020

This paper is a reflection on an experiment undertaken during a Medical Ethics lecture delivered to a group of medical students in the UK as part of a project for a programme in Higher Education Practice. The aim of the project, following Paulo Freire’s idea of ‘liberating education,’ was to identify students’ ethical assumptions and biases in relation to a problem of resource allocation in healthcare, and their role in decision-making. The experiment showed the importance placed by medical students on disputed values such as free will, desert, social worth and body image, and highlighted the difficulty and importance of bringing students’ process of moral decision-making to awareness in ethics teaching, in order to a) decrease the role of implicit bias in students’ decision making and b) allow students to decide whether they in fact agree with assumed values and ethical frameworks that influence their thinking.
Compreensão textual de artigos originais de pesquisa por graduandos em química
Authors: Sacchi Flávia Gabriele , Queiroz Salete Linhares
Published: September 2020

Reading and comprehension of research articles (RA) by undergraduate chemistry students provides a greater ability to develop criticism and establish links between scientific contents. Even being such a relevant skill, research on the subject is scarce, especially in the Brazilian context. From this perspective, this paper aims to investigate the text comprehension of RA about the topic of biofuel, extracted from the “Química Nova” journal, by undergraduates from the area, in the context of a scientific communication discipline.  Therefore, we initially analyzed the retextualization carried out by a group of students from RA for corresponding oral presentation, and then established links between retextualization operations and text comprehension. The analysis was based on studies on retextualization operations and text comprehension, from the perspective proposed by Marcuschi.  The results indicated that the development of the oral presentation component slides took place without impairing the communicative purpose established by the RA authors, suggesting the undergraduates understood it.
Soil geochemistry of the municipality necropolis of Mata, RS, by fluorescence of x-rays by dispersive energy
Authors: Gomes Cristiane Heredia , Sperandio Diogo Gabriel , Dias Guilherme Pazinato , Viçozzi Arthur Pedroso
Published: September 2020

The objective of this study was to detect the environmental impacts generated by the municipal Mata cemetery. In order to aid in the detection and monitoring of the area were used granulometric and chemical terms through EDXRF the study of soil. Considering the results obtained it is concluded that the soil analytical results showed presence of metals in all analyzes, but with levels below the maximum permitted values of metals in Brazilian soils. The Cd was an exception, for this metal values above 0.6 mg kg-1 were found. The clay/silt ratio less than 1.5 in the investigated samples indicates a more weathered soil on the surface than at depths of 30 cm in the cemetery area. Statistical data estimate highly significant Mg, Cl, Al, Fe, K, Ti and Rh factor loads on the surface and at depths, K, Ca, Cl, Al and Mg are the most important. The main ion exchanges correlate with the correlation coefficients found within the same order. Therefore, it is possible that the simultaneous increase or decrease in the cations is the result, mainly, of ionic exchange effects in the mineral assembly of the sediments investigated.
Conditions of use of boom sprayers in the micro-region of Pato Branco, PR, Brazil
Authors: Modolo Alcir José , Sgarbossa Maicon , Pagnoncelli Junior Fortunato De Bortoli , Brusamarello Antônio Pedro , Dotto Lucas , Freitas Juan Paulo Xavier de , Baesso Murilo Mesquita , Trogello Emerson
Published: September 2020

The technical inspection of agricultural sprayers is responsible for generating important subsidies to inform and guide their users. In this sense, the aim of this study was to evaluate the working conditions of boom sprayers regarding their conservation status in order to identify the problems that interfere with quality sprayings. Sixty-three agricultural sprayers from rural properties were evaluated in the micro-region of Pato Branco, PR. Less than half of applicators (42.9%) performed some type of training and 58.7% of the operators had knowledge about the working pressure indicated by the spray tip manufacturer, but 24.3% of them were working with the pressure out of the recommended or with a damaged manometer. The manometer was present and operative in only 71.4% of the sprayers. Only 54% of the collected flows were in accordance with that informed by the operator. Most of the interviewed producers still do not have adequate criteria for choosing spray tips nor frequency of their replacement.
O processo de expansão urbana e seus impactos na Estação Ecológica de Ribeirão Preto, SP
Authors: Abreu Emanoele Lima , Saquy Sammy Dutra , Fernandes Pedro Henrique de Godoy , Jesus Silvia Cristina de , Catojo Adriana Maria Zalla
Published: September 2020

Although the normative instruments of urban planning include the environmental impact assessment, there is a loosening of these laws due to public and private interests that have purposes contrary to environmental policies. In the municipality of Ribeirão Preto, coffee and sugarcane monocultures have contributed to the fragmentation of native vegetation, reducing it to 6% of the municipal area (4,200 ha). The Ecological Station of Ribeirão Preto (ESRP) is the larger native remnant (155 ha) and suffers pressures for being located in the urban environment. This work investigated the urban pressure in the Buffer Zone (BZ) and its relation to the changes in the  Master Plan (MP) and complementary laws.  The land cover maps  (2010 and 2017) were also analyzed in order to quantify the conversion of native forests to anthropic uses, showing an intense urban expansion in the BZ over the period analyzed. On the other hand, municipal urban environmental legislation has evolved seeing that the previous MP (dated from 1995) approached the environment in a very specific way, which was modified in the 2018 law, which attempts to integrate the urban zoning to the buffer zone in order to make land use compatible with the ESRP Management Plan.
Universidade Federal de Santa Maria - Campus Cachoeira do Sul: pesquisa, ensino e extensão
Authors: Boita Jocenir , Quadros Glauber Rodrigues de , Fabris Lucinéia , Maldaner Silvana , Cardoso Lucas Tavares
Published: September 2020

This work shows the trajectory of Cachoeira do Sul campus in search terms, showing a brief history of the rise of the Federal University of Santa Maria (UFSM), insertion in Cachoeira do Sul, statistics on education, research and extension, infrastructure available and currently used, highlighting some important points, such as the “Awards and Transfer of Technology through Research and Extension” held at the Cachoeira do Sul campus, “Scientific and Technological Training” and the “Project Show”, an action that encourages the inclusion of academics in the scientific environment, contributing to their education as a professional and academic.
Urban floristics in southern Minas Gerais, Brazil
Authors: Bucci Maria Elisa Diniz , Botezelli Luciana , Clemente Felipe , Braga João Paulo de Lima , Williams Eric Arruda
Published: September 2020

The urban afforestation is an important tool for the formation of a city with an environmental quality. The present project has the aim to provide the qualitative inventory of all tree species and their respective families, in the neighborhood of Véu das Noivas, located in the west region of the municipality of Poços de Caldas, Minas Gerais. For each tree, geographic coordinates were collected and the species identified, with the help of experts, and with the material available in “Jardim Botânico de Poços de Caldas” foundation and bibliographies. Together, all species make a total of 497 individuals, once 185 in green spaces, 211 were located close to public highways and 101 were located close to the walls of some buildings. Among these trees, 44 species were found in green spaces, 54 in streets and 19 in vertical landscaping, distributed in 27 families present in green areas, 25 in streets and 14 in vertical landscaping. It was also noticed exotical species compose most part of the analyzed trees. It’s important to remember that the usage of adequate species in urban afforestation is directly related to a correct urban planning.
Scorpions (Arachnida, Scorpiones) at elevated altitudes of an area of conservation in the Caatinga
Authors: Souza Phelipe Rêgo Lisboa de , Benati Kátia Regina , Peres Marcelo Cesar Lima
Published: September 2020

This study aims to report the diversity of scorpions at elevated altitudes in the Parque Estadual das Sete Passagens (PESP), in an area of conservation located in the Chapada Diamantina within the Caatinga domain in north-eastern Brazil. Data collection occurred in December 2016 and December 2017, through the use of pitfall traps and nocturnal manual collection with the help of ultraviolet torches. 86 individuals were collected, pertaining to nine species, grouped into two families. The Bothriuridae represented 71% of samples, with Bothriurus sp. 1 occurring at all sample altitudes. Whereas, the Buthidae represente 29% of samples, with Ananteris sp, the most represented species, occurring at altitudes of 1,000m and 1,076m and Tityus stigmurus inhabiting areas with extensive human presence. The ample diversity found in the PESP, reveals that this location can be considered representative of the scorpiofauna of Bahia and of the Caatinga, especially due to the lack of data available on scorpions in semi-arid environments.
The permian end catastrophe: an evidence for a broader phenomenon
Authors: Meth Sergio
Published: September 2020

It is well known that about 250 million years ago a huge catastrophe took place in our planet, with effects so big that about 95 % of the species disappeared in the process including sea animals. This event is called “the Permian extinction”. Other effects are also apparently connected to this event. This kind of event would require an extremely huge amount of energy. Since there is no evidence for an asteroid impact, the energy source should be searched inside the planet. Most importantly, it should show an energy source capable of producing such huge phenomenon. The aim of this paper is to propose a model to explain this extinction event and to show that there is evidence that this is a phenomenon that apparently happened several times not only in our planet but also in other Solar System bodies.
Análise do escoamento horizontal de movimento não turbulento na camada limite noturna sob influência de obstruções
Authors: Guerra Viviane Da Silva , Azevedo Otávio Costa , Costa Felipe Denardin , Oliveira Pablo Eli Soares de
Published: September 2020

When turbulence is well developed, the diffusivity tends to quickly destroy other flow variability modes, so that the turbulent processes become dominant. However, in cases of weak or intermittent turbulence the turbulence scales are restricted to small values, both spatially and temporally. Non-turbulent processes can become important in such cases. This is particularly possible in the Stable Boundary Layer, some studies have focused on non-turbulent flow modes such as submeso, for example. Non-turbulent motions occur simultaneously on other scales and may to dominate the fluctuations of the horizontal flow and vertical flux The physical forcing of submeso flow is still poorly understood, but it is believed to depend significantly on local conditions such as topography and vegetation. The hypothesis assumed in this paper is that obstacles of different nature and dimensions, such as trees, buildings and topography elements affect different flow scales and analyze how turbulent and submeso processes are affected differently.
Variabilidade temporal dos fluxos noturnos determinados a partir de duas diferentes metodologias no nível de 325 m acima da floresta Amazônica
Authors: Santos Diego Jatobá , Randow Celso Von , Oliveira Pablo E. S.
Published: September 2020

The present study aimed to analyze and compare the temporal variability of the nocturnal fluxes of CO2, sensitive and latent heat, calculated from two different methodologies: one with a 5-minute temporal window (using the eddy covariance technique), and another with 109 minutes (from multiresolution decomposition). For this, night series of 25 nights were used between October and November 2015. The analyzes were made for two groups of distinct turbulence patterns: one with intermittent regime and the other with homogeneous turbulence. The results showed that the fluxes obtained by the classical method of eddy covariance were dependent on the intensity of the turbulence. On the other hand, the fluxes calculated from the multiresolution decomposition technique showed significant fluctuations in the temporal evolution of all scalars analyzed, with the largest percentage differences between the two approaches occurring in the homogeneous turbulence regime group, which was characterized by predominantly weak turbulent activity throughout the night. In the comparison made, the methodology employed in the 109-minute window showed greater efficiency in the estimates of exchanges at 325 m in the ATTO tower, especially during conditions of low turbulent activity.
Escoamento de drenagem sobre terreno ondulado
Authors: Andrades Maicon Fonseca , Medeiros Luis Eduardo , Costa Felipe Denardin , Camponogara Luis Fernando , Roberti Débora Regina
Published: September 2020

The present work investigates drainage events of cold air that occur over an undulating terrain, with elevations differences of some tens meters and grassy surface. For this, data collected in the autumn of 2015 from a micrometeorological tower and four weather stations are used. The results show two different cases of drainage, one when the ambient flow is upslope against the near the surface drainage flow, and another when the ambient flow is downslope in favor of the drainage.
Avaliação da esteira de turbulência gerada por um parque eólico teórico na região do Pampa Gaúcho utilizando o modelo WRF
Authors: Stüker Eduardo , Puhales Franciano Scremin , Medeiros Luiz Eduardo , Costa Felipe Denardin
Published: September 2020

The main objective of this study is to analyze the influence of a wind farm on the variables that control the flow in the atmospheric boundary layer. The simulated period was the whole year of 2008, using a control simulation performed with the Weather Research and Forecasting model (WRF), and the wind farm model (the WRF model with the module Fitch, which parameters the influence of wind turbines on atmospheric flow). Both simulations using the Yonsei-University (YSU) boundary layer parameterization. From the control simulation is made the validation of the model, using observational data collected in two automatic stations of the National Institute of Meteorology (INMET) in the cities of Alegrete-RS and Quaraí-RS. The wind farm idealized in this work has 100 wind generators of 3 MW of power with 120 m in height and with rotor measuring 125 m in diameter. Although the wind speed responds adequately, the temperature and turbulence of near-surface runoff decrease. Analysis of the dependence of near-surface turbulence with vertical stability indicates that the turbulence being generated by the turbines is not reaching the surface. This problem may be related to the chosen boundary layer parameterization.
Ecological burial proposal for the city of Curitiba (PR)
Authors: Koche Katryni Calistro Furtado , Ehrenfried Thais Cristine Grein , Silva Frederico Fonseca da , Seguin Janaina
Published: September 2020

In this present work, the current issue of crowding of the public cemeteries, mainly the municipal ones, of the city of Curitiba was discussed. Given the above, the immediate counterpoint is the proposal of the cremation process. However, it believes that there exists a model that uses the positive parts of both processes, being the same alternative, harmonic and environmental with implantation of trees in their internal areas (but extended to the external areas, as an act of continuity). From the environmental point of view, the cremation does not contaminate the soil and the water table with the necrochorume and to put trees in the place of the mausoleums, taking that somber air of conventional cemeteries, is the proposal presented without hurting existing customs and traditions by peoples and religions.
Análise de mapas de recursos eólicos gerados por diferentes ferramentas numéricas para um terreno complexo
Authors: Silva Adaiana Francisca Gomes da , Andrade Cláudia Regina de , Zaparoli Edson Luiz
Published: September 2020

The objective of the present work is to compare the characterization of the local scale winds through different techniques of numerical modeling of the atmosphere. We compared four numerical methods to simulate the flow over a complex terrain, namely: CFD RANS with k-ε and k-ω (WindSim), simple mass conserving (WindMap), and refined mesoscale (SiteWind). The mentioned tools are very frequently utilized in the wind industry, and for this reason they have been selected. In this terrain, we had data availability from five meteorological masts during measurement periods that comprised 1.5 to 2 years. To ensure a free tendency analysis, equivalent settings have been used in the microscale models, with steady state, incompressible flow and neutrally stratified atmosphere conditions. Non-negligible differences are found on the spatial distribution of the winds simulated by the different models. Qualitatively, this disagreement hampers the decision-making. The five meteorological masts inside the area are important for adjusting and for checking the model, but they are not enough to categorically claim the superiority of accuracy of one model over the others. Nonetheless, these measurements provide us an indicative that the refined mesoscale model was able to better represent the wind acceleration in the studied region.
Atmospheric Flow at Alcântara Launch Center
Authors: Klippel Karine , Goulart Elisa Valentim , Fisch Gilberto , Reis Junior Neyval Costa , Francisco Cayo Prado Fernandes
Published: September 2020

The atmospheric flow at Alcântara Launch Center (CLA) was studied using Computational Fluid Dynamics (CFD) techniques. To characterize the region were considered the coastal cliff and the Integration Mobile Tower, called TMI, both within the launching and preparation area (SPL). In this study, the cliff was represented by a step of 90° with 40 meters of height. The inlet velocity profile was elaborate according to the power law, with exponent of 0.11, freestream velocity of 20 m/s and Reynolds number of 4.3 x 105, adopting neutral atmosphere. Three wind directions were considered, 90º, 125º and 135°. The numerical model used was the Reynolds Stress Model (RSM), based on the Reynolds-Averaged Navier-Stokes (RANS) equations. The solution of the equations was obtained by ANSYS FLUENT 19, which uses the finite volume method. The results showed good agreement with the wind tunnel tests especially for wind direction perpendicular to the cliff. The incident wind direction strongly influences the flow dynamics in the SPL forming a helicoidal vortex over the coastal cliff the higher the wind slope.
Sazonalidade da Concentração de CO2 na camada limite atmosférica sobre o lago Curuá-Una, Santarém-Pará
Authors: Vieira Kewen Antônio Souza , Almeida Cíntia Silva de , Santana Raoni Aquino Silva de , Tóta Julio , Andrade Antônio Marcos Delfino de , Silva Rodrigo Da , Vale Roseilson Souza do , Tapajós Raphael , Pinto Joicy Da Silva , Ferreira Marinete Da Silva , Santana Luis Paulo Aquino Silva de , Mota Beatriz Freire
Published: September 2020

Rivers and lakes play an essential role in the global carbon cycle, not just in the transport of organic and inorganic particles to the oceans. Recently, it has been discovered that they also contribute greatly to the emission of CO2 into the atmosphere, assuming a prominent role as a greenhouse gas. This work aims to study the seasonality of the CO2 concentration in the Atmospheric Limit Layer (CLA) over the artificial lake of Curuá-Una, during the period from June 2015 to June 2016. The study was carried out at the hydroelectric power plant of Curuá-una, located 70 km southwest of the city of Santarém, in the state of Pará. The data were obtained using a micrometeorological buoy contained by a system of covariance of turbulent vortices, where the concentration of CO2, temperature, wind speed were obtained, as well as variables that describe the turbulent flow of the atmosphere. The results show that the average monthly concentration of maximum CO2 was 405 ppm in June 2015, while the lowest average concentration was observed in December of the same year. An interesting result found in this study was the relationship between the CO2 concentration and the intensity of vertical atmospheric turbulence (σw).
Usando a altura do ponto de inflexão no perfil do vento para a obtenção de perfis adimensionais acima da floresta amazônica
Authors: Pinheiro Di Angelo Matos , Dias-Júnior Cléo Quaresma , Sá Leonardo Deane de Abreu , Manzi Antonio Ocimar
Published: September 2020

The most turbulent vortices that populate the forest-atmosphere interface have canopy height length scales. These vortices are mainly responsible for turbulent exchanges between inside and above canopy region. Thus, we used the vertical wind profiles obtained by 10 anemometers installed inside and above the forest canopy of the Rebio-Jarú experimental site, in the Amazon Rainforest. A third degree polynomial function was developed to better fit the wind profile and therefore estimate the inflection point height of the vertical wind profile (zi) a length scale associated with wind shear (Ls), and the wind speed at height zi. These length and velocity scales were used to obtain better fits for the dimensional wind profiles and turbulence statistical moments. Three dimensionless profile models were compared using friction velocity, wind velocity in zi and wind velocity at canopy height. It was observed that the dimensionless profiles using the velocity and shear calculated at zi provided support for the elaboration of more realistic parameterization of the turbulent exchange processes that occur both at the forest-atmosphere interface and inside the canopy.
The effects of auditory numerosity and magnitude on visual numerosity representation: An ERP study
Authors: Zhang Jinbo , Wu Zehua , Wu Jiashuang , Mou Yi , Yue Zhenzhu
Published: September 2020

Numerical representation is not restricted to sensory modalities. It remains unclear how numerosity processing in different modalities interacts within the brain. Moreover, the effect of continuous magnitudes presented in one modality on the representation of numerosity in another modality has not been well studied. By using event-related potential (ERP) and source localization analyses, the present study examined whether there was an interaction between auditory numerosity and continuous magnitude on visual numerosity representation. A visual dot array (visual standard stimulus) was preceded by sound in which numerosity (Multiple-tone vs. One-tone conditions) and magnitude (Loud-tone vs. Soft-tone conditions) information were manipulated. Then, another visual dot array (visual comparison stimulus) was presented, and participants were required to compare the numerosities of the visual dots. Behavioural results revealed that participants showed smaller just-noticeable differences (JNDs) when visual stimuli were preceded by multiple tones than those when visual stimuli were preceded by one tone. The subsequent ERP analysis of visual standard stimuli revealed that the peak amplitude of N1 was more negative under the Loud-tone condition than that under the Soft-tone condition, which could be related to better preparatory attention. Moreover, a significant interaction between auditory numerosity and magnitude was found within the P2p time window for the standard stimuli. Further source localization analysis identified the effect of N1 and P2p to be in the right middle frontal gyrus (MFG) and left inferior parietal lobule (IPL). The present study suggests that numerosity information presented in one sensory modality could spontaneously affect the numerical representation in another modality.
AS REGRAS DA ARTE E A QUEDA DA AURÉOLA: REFLEXÕES SOBRE O VALOR DA ARTE E LITERATURA HOJE
Authors:   Universidade Federal de Santa Catarina, Oliveira Eloisa da Rosa
Published: September 2020

Este artigo aborda o tema da distinção existente entre a arte ordinária e extraordinária e os caminhos que a avaliação da arte tem tomado em nossa sociedade pós-moderna. Como escopo do estudo, o foco foi dado ao campo da arte literária em diálogo com o campo das artes visuais. A problematização está no julgamento do gosto e sacralização de obras artísticas. Para isso, o ponto chave do debate se apoia em Pierre Bourdieu – mais especificamente em suas obras Distinção (2013) e As Regras da Arte (2015) – para pensar no valor da obra de arte hoje, na “autonomia” do artista e, por último, na perspectiva do leitor de obras literárias e sua relação com essas classificações. O objetivo central do estudo foi, portanto, desdobrar os temas aqui expostos a fim de compreender melhor o lugar da arte e seus critérios de avaliação dentro de alguns dispositivos de poder, que, por vezes, exercem uma “violência simbólica” (BOURDIEU, 1989).
CARLOS PASQUETTI, ARTE E FOTOGRAFIA: DÉCADAS DE 1960 E 1970 EM PORTO ALEGRE
Authors:   Universidade Federal do Rio Grande do Sul, Ferreira Cláudio Barcellos Jansen
Published: September 2020

Este trabalho observa a entrada da fotografia no meio artístico de Porto Alegre, entre as décadas de 1960 e 1970, quando Carlos Pasquetti (1948) se aproximou do conceitualismo, compartilhado com outros artistas que atuavam fora dos Estados Unidos e da Europa. A contraposição desempenhada pelo meio mecânico de representação frente ao ambiente artístico regional se dá em paralelo com o enfrentamento da situação política na qual o país se encontrava. Sua obra, desde o início, apresenta uma dualidade, uma aparente dicotomia entre as linguagens “clássicas”, como o desenho e a pintura, e o emprego de um novo entendimento sobre o que seriam os materiais “adequados” ao fazer artístico. O uso da fotografia por Pasquetti está ligado, nesse primeiro momento, às obras de viés conceitualista, mas seu trabalho incorporou outros elementos, que estavam virtualmente disponíveis em um “panorama” formado pelo universo de informações que chegavam à sensibilidade do artista.
Quando o verme deseja
Authors:   Universidade Estadual de Londrina, Santana Elke Pereira Coelho
Published: September 2020

O presente relato artístico aborda a série Quando criança o verme sonhava em ser..., produzida pela artista Elke Coelho entre os anos de 2012-13. Os trabalhos em questão geram aproximações entre duas coleções, uma composta por objetos e outra por palavras. A relação entre a instância objetual e a linguística é estabelecida por meio de analogias formais, sensórias e/ou metafóricas no campo da Arte Contemporânea.
Sophie Calle & Paul Auster: Doubles-jeux
Authors:   Escola Superior de Artes e Design, Baraona Isabel
Published: September 2020

Apresentação de Doubles-jeux, um conjunto de 7 (sete) livros de artista de Sophie Calle feitos a partir de uma colaboração com o romancista americano Paul Auster. O texto foi redigido em português europeu.
À la croisée d’un double continuum ? Retour sur une expérience de co-création entre un compositeur et cinq improvisateurs
Authors: Canonne Clément
Published: September 2020

L’improvisation musicale est souvent considérée comme se situant à la croisée d’un double continuum mettant en jeu, d’une part, le degré de spontanéité de la création, et, d’autre part, le degré de prédétermination de la performance. Le présent article confronte cette idée d’un « double continuum » de l’improvisation à une étude de cas – l’analyse du processus de création du projet Sillon, une expérience « comprovisatoire » ayant associé un compositeur et cinq improvisateurs du collectif Umlaut. Sans nier l’existence de continuités fortes entre improvisation et composition, l’article met en lumière les spécificités et singularités que les musiciens attachent à leurs différentes pratiques, par-delà leur volonté commune de parvenir à produire un objet musical « hybride ».
Interacción terrestre
Authors: Fernández Marín Jose
Published: September 2020

Sistema de interacción orientado a la visualización de información a través de una estructura formada por Arduino, Processing y una bola del mundo. Para mostrar la información al usuario se utilizan tecnologías web como JavaScript o PHP que se comunican con el sistema a través de la simulación de las pulsaciones de teclado y que obtienen información de distintas API.
Increasing the impact of innovation and advocacy in public libraries across Europe
Authors: de Greef Maurice , De Donder Liesbeth , Lambotte Deborah , Huysmans Minne , Duppen Daan , Hoens Sylvia , Croux Flore , Switsers Lise , Pan Tina , Colpin Nathalie , Petti Sara , Kish Ilona
Published: September 2020

Libraries need to innovate to ensure services they offer match citizens' needs and expectations in addition to among others the increasing digitalisation of society. Besides, professionals in the library sector need to improve their advocacy skills so that stakeholders are aware of
the realised innovation. Based on a mixed-method methodology existing of a systematic desk research, followed by short interviews among 49 professionals from 22 different countries working in the public-library sector and finally completed by 25 case studies this study answers the question
what kind of innovation and advocacy activities are possible for public libraries influence successful implementation?