bluuebunny/crossref_metadata_2025 huggingface dataset:
Potential of Soil Bacteria as Mercury Bioremediation Agent in Traditional Gold Mining
Authors: Winardi Winardi , Haryono Eko , Sudrajat Sudrajat , Soetarto Endang Sutariningsih
Published: November 2019

Mandor Village has developed as a tradisional gold mining area since years ago. It involved activities that have led to extreme land condition and the release of mining residues, i.e., mercury, to the soils. The study examined the potential of soil bacteria as mercury bioremediation agent based on their population and activity in former mines with different ages. The bacterial population was measured by isolating soil bacteria on solid media using the pour plate method, and the colonies were enumerated during the incubation. The Nutrient Agar (NA) medium was used to obtain the total population, whereas the Salt Base Solution (SBS) was to determine the presence of mercury-tolerant bacteria. The addition of HgCl2 affected the number of the colonies. The colony only grew until the concentration of HgCl2 reached 5 mg/l, and the total colony was larger in older mines. The observation of bacterial activity showed that biotransformation performance was lower when the concentration of mercury was the same as its natural presence in soils (0.1-0.5 mg/l) compared with higher mercury level (1 mg/l). The research showed that lower mercury concentrations in nature reduced the natural ability of bacteria to transform pollutants. This study provides information that can assist the development of a technological approach to control mercury pollution in former traditional gold mines in an environmentally friendly manner using indigenous soil bacteria.
Fruit Morphological Characteristics and β-carotene Content of Three Indonesian Dessert and Cooking Banana Cultivars
Authors: Sunandar Ari , Kurniasih Dedeh
Published: November 2019

Approximately, 325 cultivars of bananas were found in Indonesia. They have variation in shape, taste, color of fruit pulp, essential vitamins and mineral. The β-carotene is one of essential nutrient in banana with various concentration in every cultivar. The aims of this research were to describe the morphological characteristics and to analyze β-carotene content of mature fruits of three different genomic groups of Indonesian dessert and cooking banana cultivars namely Berlin (AA/dessert), Barangan (AAA/dessert), and Kepok (ABB/cooking). Morphological characterizations of fruits were conducted according to Descriptor for Banana from International Plant Genetic Resources Institute. The β-carotene content of mature banana pulp was analyzed using High-performance liquid chromatography (HPLC) method with three replications. Banana fruit characters were analyzed based on 15 descriptors. The bananas were then subjected to clustering analysis.  The result showed that β-carotene content  were 27 μg 100g-1, 5 µg 100g-1, and 3 μg 100g-1 fresh weight respectively. Berlin showed the highest value of β-carotene. Cluster analyses formed two groups. The first group consists of Berlin and Barangan while the second one consists of Kepok. This study can be used as a a reference for people to consume bananas with high content of β-carotene in meeting the needs of vitamin A and as a consideration for the plant breeding especially for β-carotene improvement purpose.
Isolation of Partial Housekeeping Genes on Tuntun Angin (Elaeocarpus floribundu)
Authors: Roslim Dewi Indriyani , Ashfira Ashfira , Mutiarawati Dilla , Rosmeilinda Tio Fanny , Aisyah Nur , Herman Herman , Lestari Wahyu
Published: November 2019

Some genes like 18S rRNA, 26S rRNA, elongation factor 1-alpha (EF1a), and beta-tubulin (TUB) are members of housekeeping genes group that are commonly used as internal control in gene expression study. This study aimed to isolate those four housekeeping genes of tuntun angin (Elaeocarpus floribundus). The research material included fresh leaves of E. floribundus that were picked up from Kajuik Lake in Riau Province and four primer pairs. The procedures consisted of total DNA isolation using Genomic DNA Mini Kit Plant (Geneaid), polymerase chain reaction (PCR), electrophoresis on 1% agarose gel, sequencing, and bioinformatic analysis. This study has been isolated 18S rRNA, 26S rRNA, EF1a, and TUB genes with the size of 422 bp, 922 bp, 856 bp, and 877 bp, respectively. The EF1a and TUB genes has never been reported in Elaeocarpaceae family. Thus, those partial DNA sequences are the first sequences reported from this species and can be used as reference genes in this plant after validation.
THE EFFECT OF SOCIAL COMMUNITY CONTROLS ON INCREASING SEXUAL VIOLENCE AGAINST WOMEN
Authors: Ramadan Muhammad
Published: November 2019

Women are creatures of God Almighty who must be protected, even though gender equality has been done with men. Therefore women must be protected from all forms of intimidation, harassment, exploitation, violence both physically and psychologically. Because the nature of women in the eyes of the social and religious eyes have differences with men, as the nature of women is the weakest god creature. Even in law, women have different protections compared to men. This writing is in the form of descriptive narrative which means describing using available legal materials which are then processed based on the theories obtained and using normative methods based on library studies, namely by collecting various kinds of literature consisting of books, journals, and documents others relating to violence and sexual harassment and social control of these crimes. Sexual crime experienced by women in Indonesia is caused by the weak social control in the community that makes the bond of social ties not well established, causing women to be lower in the eyes of the perpetrators who commit violence against women. report the actions that occur, thus there will be omission of these conditions so as to make the perpetrators freely commit sexual violence against women. Therefore the role of community social control is very necessary to protect women.
THE SYNTHESIS OF CHITOSAN POLYMER MEMBRANE/PVA AS AN ECO-FRIENDLY BATTERY FOR ALTERNATIVE ENERGY RESOURCE
Authors: Widiarti Nuni , Sumarni Woro , Setyaningrum Lysa
Published: November 2019

The eco-friendly materials which have not commonly developed as energy storage alternative sources are solid electrolytes. Chitosan is one of the natural polymer potentially used as the material of solid electrolytes. The purpose of this study is to determine the conductivity value of chitosan polymers electrolytes-PVA-glutaraldehyde-NH4Br by varying amount of chitosan and ammonium bromide salt (NH4Br). The polymer electrolyte membrane was made using phase inversion method. Electrolyte polymer is made by mixing chitosan, PVA, glutaraldehyde, and NH4Br to become homogenous liquid and then printed it in petri dish. Polymer electrolyte with chitosan variation of 2; 2.4; 2.8 and 3.2 g has highest ionic conductivity of 1.4983 x 10-2 S/cm with the addition of 2.8 g that can be used as the optimum composition. The variations of salt (NH4Br) were 0; 0.2; 0.4; 0.6; 0.8 and 1 g has the highest ionic conductivity in the point of 2.4385 x 10-2 S/cm with the addition of 0.6 g. The characterization result of FTIR shows OH group at the wavenumber of 3362.02 cm-1, C-O group at 1740.43 cm-1, and C=N group at 1542.41 cm-1. Synthesized polymer can be used as a battery that has 0.43 V voltage.
STUDY OF THE POTENTIAL ANAEROBIC CO-DIGESTION FOR BIOGAS PRODUCTION FROM SALVINIA MOLESTA AND RICE STRAW
Authors: Syaichurrozi Iqbal
Published: November 2019

The purpose of this research was to analyze the biogas production from co-digestion of Salvinia molesta and rice straw. Ratio of Salvinia molesta and rice straw was 5:0, 4:1, 3:2. Lab-scale-batch digesters (600 mL) were operated at room temperature (30 oC) and pressure of 1 atm. Total basis of Salvinia molesta and rice straw was 10 gr, water was added with ratio of organic matter:water = 1:7 (w/w), rumen fluid was added as inoculum, initial pH was adjusted to be 7. Fermentation process was conducted for 30 days. The results showed that total biogas volume for ratio of 5:0, 4:1, 3:2 was 6.300.00; 32.7618.32; 107.5418.51 mL/g VS respectively. The pH of substrate was changing from 7.00 to 6.770.19; 6.600.14; 6.730.09 for all variables respectively.
THE EFFECT OF TEMPERATURE AND ADDITION OF CAO TO HYDROGEN PRODUCTION FROM
 PATTUKKU COAL CHAR GASIFICATION
Authors: Syarif Takdir , Sulistyo Hary , Budi Sediawan Wahyudi , Budhijanto Budhijanto
Published: November 2019

Hydrogen is an environment-friendly fuel and has a high caloric value. Hydrogen as a molecule is not found in nature, but it is found in compounds with other elements. Besides catalytic steam reforming of natural gas, hydrogen can also be produced from thermochemical processes such as combustion, pyrolysis, and gasification. The process of gasification using steam as gasification agent can increase the yield of H2 in the gas products. The objectives of this research are to study the influence of temperature and the addition of CaO on H2 production. This research was conducted in an up-draft reactor for 60 minutes with three different temperatures; i.e. 600, 700, and 800 oC and ratio of CaO:char of 0 and 0.5. Based on this study, the rise of temperature will improve the yield of H2 and CO2 in the gas products. At gasification temperature of 800 oC, the yield of H2 and CO2 is maximum. Moreover, the addition of CaO can improve the char conversion and reduce the concentration of CO2 in the gas products.
EFFECT OF PRESSURE IN ORGANIC WASTE BURNING PROCESS ON THE COMBUSTION RATE
Authors: Naryono Eko , Budiono Arief , Santosa Sandra
Published: November 2019

The combustion process of organic waste has several drawback which produce flue gases containing pollutants SO2, HCl, tar and heavy metals (Cu, Hg, Fe, Zn, Pb, and Cr). The pollutants can be  removed  from the flue gas using a water scrubber. The process of absorption using the water scrubber  can cause a rise in pressure in the combustion chamber.This research aims to study the effect of combustion process pressure of organic waste on the combustion rate. The research was conducted by burning waste in the reactor at various flow rate of combustion air. The exhaust gases of combustion then flowed into ihe water scrubber that the height varied. The change in pressure and combustion rate of each variation of the air flow rate and the height of the water scrubber was measured. According to the results, it was obtained the correlation of combustion pressure to the  combustion rate was y = 0,844e-0,2X, where y = the combustion rate (kg/min) and x = combustion pressure (gauge, mm H2O). In addition, the increase in combustion pressure up to 21 mm of water, caused a reduction in combustion temperatures up to 50 ° C, while the combustion rate decreased to one-tenth from atmospheric combustion.
THE EFFECT OF CONTACT TIME AND OZON DOSE TO POLUTANTS REDUCTION IN HOSPITAL WASTEWATER
Authors: Prayitno Prayitno , Saroso Hadi , Hardjono Hardjono , Rulianah Sri
Published: November 2019

In Indonesia, Hospital wastewater treatment generally use biological process followed by chlorination process. Chlorination process has a negative impact on the aquatic environment that is cause death of other microorganisms by the residual chlorine. On the other hand, ozone is more effective than chlorine in killing microorganisms and other pollutants in hospital wastewater. The objective of research is to determine the effect of contact time and dose of ozone to reduction of pollutants (BOD, COD, free Ammonia and Phenol) in hospital wastewater. The experiment was carried out using an ozone reactor containing 'packing', an ozone generator as an ozone gas supplier. The experimental material is a hospital wastewater containing BOD, COD, Phenol and Ammonia free. The experimental variables used were: Contact time (1, 2, and 3 min), Dose of ozone (10, 15, and 20 mg/ L). Experiments were done by flowing hospital waste water at the top of the reactor ozone at certain rate and simultaneously flowed ozone gas from an ozone generator in the bottom of the ozone reactor so that it contacts the fluid in counter-current to the surface of the packing material (packing) in an ozone reactor. By adjusting the flowrate of the wastewater and the height of the packing, it can be determined the amount of contact time and ozone dose. Furthermore, by measuring the amount of pollutant concentration on the influent and effluent of the ozone reactor, it can be obtained the amount of removal in the pollutant concentration of the hospital wastewater.The results showed that contact time and ozone dose influence the decrease of pollutant concentration in hospital wastewater where contact time at 3 minutes and ozone dose 20 mg/L and ozonation time 15 minutes can reduce of pollutants concentration as BOD (97%), COD (98%), Ammonia free (97%), and Phenol (96%).
THE EFFECT OF TEMPERATURE AND NITRATE COMPOUND ON GROWTH, BIOMASS AND FREE FATTY ACID CONTENT ON MICROALGAE CULTURE OF Spirulina sp. and Skeletonema sp.
Authors: Rukminasari Nita , Lukman Muhammad , Tambaru Rahmadi , Inaku Dwi Fajriyati , Suharto Suharto
Published: November 2019

Temperature and availability nutrients played an important role on growth and lipid production of microalgae. In this study, we examined the effect of increasing suhu and excessed and depleted NO3 on growth rate, biomass and free fatty acid concentration in the Spirulina sp and Skeletonema sp. Two microalgae were culture on Conway and Milne media for 21 days using continuous culture technique. There were four temperature treatments, such as 28oC, 30oC, 32oC and 34oC and three nutrient treatments, which were control nutrient treatment, without NO3 and two times NO3 concentrations from control treatments with three replicates for each treatments. Results found that increasing temperature significantly affected on biomass and concentration free fatty acid, meanwhile nutrient treatments affected on growth rate, biomass and concentration of organic Carbon. In general, increasing temperature was more affected on Spirulina sp in terms of increasing growth rate, biomass and free fatty acid concentration. However, Skeletonema sp was more responsive to availability of NO3 in the media culture for increasing free fatty acid, and percentage of free fatty acid per dry weight.
Pyrolysis of Coconut Coir and Shell as Alternative Energy Source
Authors: Sa'diyah Khalimatus , Rohman Fatchur , Harsanti Winda , Nugraha Ivan , Febrianto Nur Ahmad
Published: November 2019

Biomass waste can be used as raw material for bio-oil manufacture. One of the biomass is coconut coir and shell waste, commonly used as a substitute for firewood and handicraft materials. Therefore it takes effort to use coconut coir and shell to increase its economic value. One of the waste processing efforts is through pyrolysis process. Pyrolysis is the heating process of a substance in the absence of oxygen and produces products of solids, liquids and gases. The product of pyrolysis liquid is called bio-oil which can be used as alternative energy source. In this study, coconut coir and shell was pyrolysed as bio-oil. It also studied pyrolysis operating temperature and the amount of yield of bio-oil produced. The pyrolysis process was carried out in a reactor with a pressure of 1 atm and a varying operating temperature of 150 °C, 200 °C and 250 °C for 60 minutes. The reactor was equipped with a condenser as a cooling column. The mass of raw materials used was 500 grams with a size of 0.63 mm. The results of the research show that the higher the temperature, the more volume of bio-oil produced. For coconut coir pyrolysis it was obtained the highest yield of 34.2%, with density of 1.001 g/ml and viscosity of 1.351 cSt. As for coconut shell pyrolysis it was obtained highest yield of 45,2% with density of 1,212 g/ml and viscosity of 1.457 cSt. From the result of analysis using FTIR, the functional group of bio-oil was the most compound of phenol and alkene.
Determination of The Rotational Friction Coefficients of Solid Cylinder with Various Inclined Plane Angle
Authors: Firdaus T. , Toifur M. , Pramudya Y.
Published: November 2019

The layer texture differences of an object have an influence on the friction force caused by both planes. This research aims to determine the static and kinetic friction coefficient on several solid cylinder materials. The benefits of this research can be used to develop experimental learning activities on friction coefficient. This research used experimental method. The research was carried out by rolling samples at various inclined plane angles and measuring the traveled distance traveled in one rotation (D). The results showed that the static and kinetic friction coefficients between aluminum cylinder and glass were 0.146 and 0.097, iron cylinder and glass were 0.136 and 0.096, glass cylinder and brass were 0.132 and 0.094, nylon cylinder and glass were 0.101 and 0.090, and stainsless cylinder and glass were 0.122 and 0.094, respectively.Perbedaan tekstur lapisan sebuah benda mempunyai pengaruh pada gaya gesek yang ditimbulkan oleh kedua bidang. Penelitian ini bertujuan untuk menentukan nilai koefisien gesek statis dan koefisien gesek kinetik pada beberapa bahan silinder pejal. Manfaat yang dapat diambil dari hasil penelitian ini adalah dapat digunakan sebagai mengembangkan kegiatan pembelajaran praktikum koefisien gesekan benda. Penelitian ini menggunakan metode eksperimen. Penelitian dilaksanakan dengan menggelindingkan sampel pada berbagai sudut kemiringan dan mengukur jarak tempuh untuk satu kali putaran (D). Hasil penelitian menunjukkan bahwa nilai koefisien gesek statis dan koefisien gesek kinetik secara berurutan untuk silinder aluminium dengan kaca sebesar 0,146  dan 0,097,  untuk silinder besi dengan kaca sebesar 0,136 dan 0,096, untuk silinder kuningan dengan kaca 0,132 dan 0,094, untuk silinder nylon dengan kaca sebesar 0,101 dan 0,090, dan untuk stainsless dengan kaca sebesar 0,122 dan 0,094.
Tari Angguk Rodat sebagai Identitas Budaya Masyarakat Desa Seboto Kecamatan Ampel Kabupaten Boyolali
Authors: Utami Sri , Utina Usrek Tani
Published: November 2019

Penelitian ini bertujuan untuk mengetahui dan mendeskripsikan bentuk pertunjukan tari Angguk Rodat sebagai identitas budaya masyarakat Desa Seboto. Penelitian ini menggunakan metode kualitatif. Teknik pengumpulan data yang digunakan yaitu observasi, wawancara dan dokumentasi. Teknik analisis data penelitian ini menggunakan reduksi data, penyajian data dan penarikan kesimpulan.Hasil penelitian mengemukakan bahwa identitas budaya Desa Seboto melalui Tari Angguk Rodat dapat dilihat dari faktor biologis, sosial, kultural, religius, dan faktor ekonomi masyarakat Seboto. Pertunjukan Tari Angguk Rodat terdiri dari tema, pelaku, gerak, iringan, tata busana dan tata rias, tata pentas, pola lantai dan properti. Tari Angguk Rodat kini dapat dikenal masyarakat Seboto sebagai salah satu identitas kesenian Desa Seboto.
Prototype Mesin Pengantar Barang Otomatis Menggunakan Load Cell Berbasis Robot Line Follower
Authors: Susilo Dwi Budi , Wibawanto Hari , Mulwinda Anggraini
Published: November 2019

Overloaded condition in the product porter like hand pallet, hand stacker, forclift, and etc, can causes damage and terrible accident in the machine operator. This research aim to build a prototype of porter machine that can prevent overloaded condition through the reading of load cell and photo diode sensor to guide the line follower direction. Research and development methods are used with the systematic writing are background of study and problems, prototype design and validation, testing, taking and analysis of the data. Output of the research is a prototype of porter machine using load cell sensor based on line follower robot. The Result of the load cell reading is compared to SF-400 weigher, and found the difference amount 0.117%. The load testing data of automatic moving trigger is 1 gram until 2999 gram. The Overload condition warning is active while the load is more than 3000 gram. The data reading of the photo diode on the black line is running succesfully, however on the white line with orange color is found some error.
“CUAL SI TUVIERA DENTRO DEL CUERPO EL AMOR”: MARX Y LA SUBSUNCIÓN METAFÓRICA DEL FAUSTO DE GOETHE
Authors: Montero Osvaldo
Published: November 2019

Este ensayo se propone realizar un trabajo exploratorio sobre la influencia que el Fausto de Goethe tuvo en la confección de la versión definitiva de la teoría del valor de Marx, observando la centralidad de las veces que acude a esta obra y, en especial, a los versos 2140-2141, una de las citas más empleadas por él en todas sus obras. Se parte de la hipótesis de que Fausto tiene una importancia capital en la construcción del concepto de “sujeto automático”, y de que el empleo de la cita por parte de Marx no actúa solo como un amplificador de expresividad lingüística, sino que tiene valor epistémico. Tomando como marco analítico la óptica de la “crítica del valor”, se pretende demostrar que Fausto es subsumido, incorporado, como una parte constitutiva del todo que es su teoría del valor.
Software educativo para el aprendizaje creativo del curso “Embriología comparada”
Authors: Villegas García Dedsy Francisca
Published: November 2019

Recibido 4 de abril de 2011 • Aceptado 26 de agosto de 2011 • Corregido 13 de octubre de 2011

 

 

 

El estudio del que da cuenta este artículo tuvo como objetivo diagnosticar la necesidad de un software educativo sobre el proceso de segmentación en animales para promover el aprendizaje creativo de los estudiantes en el curso Embriología comparada, de la Universidad Pedagógica Experimental Libertador en Barquisimeto, Estado Lara, Venezuela. Se apoyó en una investigación de campo de naturaleza descriptiva, los sujetos en estudio fueron 32 estudiantes cursantes de la asignatura durante el lapso académico I-2009. Se diseñó y aplicó un cuestionario en formato tipo Likert, el cual fue validado a través del juicio de expertos y su confiabilidad determinada con el Coeficiente Alfa de Cronbach. Los datos fueron recolectados y posteriormente analizados mediante la estadística descriptiva, se construyeron tablas de frecuencias y porcentajes para la presentación de los mismos. Los resultados revelan que existe, entre los estudiantes de Embriología comparada, una muy alta necesidad de contar con un software educativo que permita su aprendizaje creativo, un recurso en formato electrónico adaptado a las nuevas tecnologías de la información y la comunicación.
¿El sentido del humor, tiene sentido en el aula?
Authors: González Ynfante Freddy Antonio
Published: November 2019

Recibido 09 de junio de 2011 • Aceptado 24 de octubre de 2011 • Corregido 27 de setiembre de 2011

 

 

El presente ensayo tiene como finalidad reflexionar sobre la importancia del humor pedagógico como estrategia de enseñanza aprendizaje en el aula; esto, tomando en cuenta la problemática de desmotivación y aburrimiento que sucede normalmente en la clase. Para plantear si “el enseñar contento y el aprender con alegría” pueden aumentar la eficacia en el proceso de enseñanza-aprendizaje, se abordará cómo, a pesar de las múltiples ventajas que puede aportar el humor en las aulas, se omite su empleo por la existencia de ciertos prejuicios y temores. La idea no es que los docentes hagan el papel de comediantes o payasos, sino la de mediar y acercar la clase de manera pedagógica y didáctica a través del uso del humor, y sobre esto reflexionaba Platón (1992), cuando planteaba que muchas veces ayudaba una broma, en donde la seriedad oponía resistencia.
Un recorrido por la educación actual. Cambios necesarios
Authors: Suárez Valdés-Ayala Zuleyka
Published: November 2019

Recibido 03 de junio de 2011 • Aceptado 26 de agosto de 2011 • Corregido 09 de noviembre de 2011 Este ensayo pretende sensibilizarnos acerca de los cambios que necesita la educación en la búsqueda constante de calidad y formación de seres integrales. Para ello se mencionan ocho aspectos fundamentales que requieren su aplicación en un mediano o corto plazo, si realmente se quieren avances significativos, sin olvidar que el cambio debe ser permanente.
Significado de la docencia y procesos formativos del profesorado en el área de la salud: Los inicios en la docencia
Authors: Lozano-González Elí Orlando
Published: November 2019

Más allá de los procesos de capacitación, actualización, entrenamiento o escolaridad, el profesorado del área de la salud comienza su proceso de formación docente en el momento en que se asume como tal; ya no solo como profesionales de la salud, sino de la enseñanza. En este sentido, sus procesos formativos como docentes se vinculan con el significado que le dan a la docencia. Este artículo explora los significados que el profesorado de la Facultad de Estudios Superiores Iztacala de la Universidad Nacional Autónoma de México le da a la docencia, para analizar, con base en ello, sus procesos formativos. Se trata de una investigación de corte cualitativo que contó con la participación de 38 docentes del área de la salud y la biología que contestaron 2 preguntas de tipo narrativo: ¿qué significa para mí ser docente? y ¿cómo llegué a ser docente? Las respuestas se agrupan en tres categorías respecto al significado que le otorgan a la docencia: la primera refiere a su acción sobre el alumnado, la segunda al compromiso y responsabilidad que implica la labor docente y la tercera a un sentimiento de orgullo y satisfacción de desempañarse en labores de enseñanza. Quienes significan la docencia en la segunda o tercera categoría se han asumido a sí mismos o a sí mismas como docentes; por ello se encuentran en proceso formativo, buscan transformarse constantemente en su labor de enseñanza. Enseñar ya no es solo un trabajo, es una forma de vida.
Evaluando un nodo de reanálisis de oleaje mediante información de una boya colocada en aguas intermedias.
Authors: Alfaro Chavarría Henry
Published: November 2019

Las bases de datos de reanálisis de oleaje son una fuente importante de información para desarrollar proyectos de investigación relacionados al clima marítimo y aplicaciones de ingeniería de costas. Esta fuente de información se convierte aún más relevante en lugares donde se carece de registros históricos provenientes de mediciones instrumentales, tal y como sucede en Costa Rica. No obstante esta información, al tratarse de un producto generado por un modelo numérico, se ha demostrado que requiere ser calibrada y validada con información instrumental. En este trabajo se ha utilizado la información de un nodo de reanálisis de oleaje generada y disponible por la NOAA frente a la costa del Caribe de Costa Rica, la cual ha sido calibrada y validad con información medida por una boya. El producto que se ha generado es una base de datos de oleaje calibrada desde el 2005 y en continua actualización, la cual podrá utilizarse para distintas aplicaciones en la ingeniería de costas y en aproximaciones de análisis de variabilidad climática del oleaje.
Vestigios del náufrago
Authors: Bolaño Sandoval Adalberto Antonio
Published: November 2019

La poesía de Mercado Romero (1937) recorre un largo camino desde 1970, cuando publica su primer libro, No solo poemas, y en el 2016, Vestigios del náufrago.
Prevalência de sobrepeso e obesidade e fatores associados em mulheres de São Leopoldo, Rio Grande do Sul: um estudo de base populacional
Authors: Lisowski Josiele Flores , Leite Heloísa Marquardt , Bairros Fernanda , Henn Ruth Liane , Costa Juvenal Soares Dias da , Olinto Maria Teresa Anselmo
Published: November 2019

Resumo Introdução O sobrepeso e a obesidade são multicausais, porém seus determinantes ainda não foram completamente estudados. Objetivo Estimar a prevalência de sobrepeso e de obesidade e os fatores associados. Método Estudo transversal de base populacional com 981 mulheres (20 a 60 anos) de São Leopoldo/RS. O peso e a altura foram aferidos para o cálculo do Índice de Massa Corporal (IMC). Mulheres com IMC entre 25,0 e 29,9 kg/m2 e IMC ≥ 30,0 kg/m2 foram classificadas com sobrepeso e obesidade, respectivamente. As razões de prevalência e os intervalos de confiança de 95% foram estimados por meio de regressão de Poisson. Resultados A prevalência de sobrepeso foi de 33% (IC95%: 30,1-36,0) e de obesidade foi de 31,2% (IC95%: 28,3-34,1). Após ajuste, maiores probabilidades de sobrepeso ocorreram em mulheres mais velhas, pertencentes às classes econômicas mais baixas, casadas ou em união, com histórico de obesidade materna e com uma ou mais gestações. As maiores probabilidades de obesidade ocorreram em mulheres mais velhas, de baixa renda, com histórico de obesidade materna e paterna e com três ou quatro gestações. Menarca acima de 12 anos e prática de atividade física de lazer foram fatores de proteção para a obesidade. Conclusão Esses resultados evidenciam a necessidade de ações de prevenção de longo prazo, algumas delas envolvendo ações transgeracionais.
Sodium dodecyl sulfate as a viral inactivator and future perspectives in the control of small ruminant lentiviruses
Authors: de Sousa Ana Lídia Madeira , Pinheiro Raymundo Rizaldo , Araújo Juscilânia Furtado , de Azevedo Dalva Alana Aragão , Peixoto Renato Mesquita , Andrioli Alice , da Cruz Silva Bezerra Sabrina Tainah , da Silva Teixeira Maria Fátima
Published: November 2019

ABSTRACT Infections by small ruminant lentiviruses (SRLVs) affect goats and sheep causing chronic multisystemic diseases that generate great economic losses. The caprine lentivirus (CLV) and the ovine lentivirus (OLV) present tropism for cells of the monocyte/macrophage lineage, which are directly associated with the main route of transmission through the ingestion of milk and colostrum from infected animals. In this manner, controlling this route is of paramount importance. Currently, researches have investigated the use of chemical additives in milk that can preserve colostrum or milk and inactivate microbiological agents. Among the compounds, sodium dodecyl sulfate (SDS) has been shown to be satisfactory in the chemical inactivation of HIV and CLV in milk, and also as a biocide in goat colostrum.
The spirit underneath: development, race and moral economy in Central Mozambique
Authors: Andrade Inácio Dias de
Published: November 2019

Abstract Since 2007, Tete, a province in central Mozambique, has been experiencing an economic boom. Multinational mining companies are exploring one of the world’s largest - and virtually untouched - coal deposits. Led by Brazilian-based multinational Vale, the controversial billionaire investment plans caught the attention of international NGOs and cooperation agencies that flooded Tete province with development and democracy-building projects. Meanwhile, the inhabitants of Tete are suspicious. People in Tete have encountered various exogenous populations since pre-colonial times and are extremely familiar with the methodology of development organizations. However, the current "developmental and democratic times" pose an intriguing question to them: can we develop? To clarify this existential question - that has deep spiritual and racial implications - the article discusses the nature of inter-ethnic political community in the Zambezi Valley, correlating it with the region’s pre-colonial and colonial history.
“Mestizo cattle is like us people”: reflections on cattle, family and coloniality
Authors: Dupin Leonardo Vilaça
Published: November 2019

Abstract This article results from ethnographic fieldwork in farms that produce artisanal cheese, in the southwest of Minas Gerais, Brazil. The analysis focuses on the meanings of the practices developed there, especially concerning livestock, which conflict with recommendations of technicians working in the public sector. The latter have tried to manage both human and non-human lives, within a process of development supported by legislation and the insertion of technology, changing the traditional productive practices. This top-down managerial strategy has overshadowed the complex knowledge and the modes of existence empirically observed in these areas. I demonstrate how local practices of mutuality have provided answers that reinvent meanings for life.
The 2018 Brazilian Elections and the Digital World: a case study about the digital game Bolsomito 2k18
Authors: Gomes Laura Graziela , Alves Tony Bela , Thorstensen Christian , Soares Isabele Acácio
Published: November 2019

Abstract This article is the result of a collective study conducted by anthropology researchers who study electronic games from the Center for Studies of Modernity (NEMO), INCT / InEAC / UFF. It is an analysis of a game produced during the 2018 election campaign entitled “Bolsomito 2k18”. The fieldwork began shortly after the game's release, just before the first round of voting, and lasted until the forty-fifth day of the new Jair Bolsonaro government. The article is presented in three parts: in the first, we present a dense description of the game2; in the second part we raise considerations about the Spiritual Warfare and Seven Mountains doctrines preached by the pastor and now minister, Damares Alves.3 In the third part we discuss the ethnography and proposals of the plan for attaining power found in the Seven Mountain power plan, according to the theory of justification and cités, developed by Boltanski and Thévenot (1991).
The tree that responds: taming the rubber tree
Authors: Di Deus Eduardo
Published: November 2019

Abstract The starting point of this article is the assertion, common among tappers (or seringueiros) in plantations in the interior of São Paulo, that it is necessary to tame rubber trees (Hevea brasiliensis) at the beginning of each harvest. They use this phrase to indicate the need to accustom the trees, from the first cuts, to establish an optimal flow of latex. The process of taming the tree is also discussed here based on historical ethnographic materials regarding relationships established with rubber trees in the last decades of the nineteenth and early twentieth centuries, both in the Amazon and in the nascent plantations in Southeast Asia. British naturalists from different colonies came to dispute who “discovered” the fact that the rubber tree possesses a mechanism that they called the “wound response”. Based on this diversity of references to the modes of relationship with the peculiar characteristics of the rubber tree, I seek to elucidate, by viewing the genesis articulated between technical and vital rhythms, what it means to affirm that a tree responds or is tamed.
Manioc-stem transects: vital flows, technical processes and transformations
Authors: Oliveira Alessandro Roberto de
Published: November 2019

Abstract This article studies human-plant relations as technical phenomena in the context of the pluriethnic communities of the border between Brazil and Guyana. It proposes that we consider a technogenesis of the social at the intersection of technical processes and vital flows of manioc stems - the overground part of the plant that produces manioc (Manihot esculenta). Its starting point is a Wapichana agriculturalist’s collection of stem segments. The onomastics of this set provides an idea of the diversity of these plants in the region. However, the article argues that, rather than being referents in a closed classificatory system, names are histories, indexes of ways of knowing and processes of individuation of people and varieties. By emphasising processes of stem manipulation, the article discusses some of the methodological challenges of the ethnography of technique and reflects on contemporary social transformations in dialogue with Indigenous analyses.
When the Animal is the Therapist: Interspecies Practices in Human Care
Authors: Teixeira Ivana
Published: November 2019

Abstract The present article deals with the technical dimensions of zootherapy, focusing on the practices developed in this field in order to prepare the animal and the abilities already present in the animals themselves. Employing ethnographically-grounded data and focusing on the interactions between beings and the effects of these interactions, as observed and reported, we will discuss the works of Georges Haudricourt and Carole Ferret. We will then look at the potential and limits of the models presented by these two researchers, broadening the debate with the help of anthropology, by looking at the agency of the non-human beings involved in these practices (practices which seek to control many different processes). Finally, we will demonstrate that while zootherapy presents something of an enigma from the point of view of communications theory, it involves and highlights a series of actions that are socially learned by both humans and animals. In conclusion, we will consider some of the effects that this process has on humans.
Fences in the borderland: technique, landscape and the architectures of domestication in the Brazilian-Uruguayan Pampa
Authors: Sordi Caetano
Published: November 2019

Abstract Recent perspectives on domestication have emphasized the importance of technical objects and other environmental elements as mediators of the relations between humans, animals and the many landscapes they inhabit. Using the concept of “architecture of domestication”, proposed by Anderson and others (2017), this article investigates the role of alambrados (wire and wooden fences) in the context of animal husbandry in the Brazilian-Uruguayan Pampa, the technical processes involved in their construction, as well as the new configurations and uses for these structures that have emerged along with the biological invasion of European wild boars (Sus scrofa) in the region. I will show that the alambrados are key elements in the difference between positive direct action and negative indirect action in relation to the animals of the herd within the Pampeano system of domestication.
Ceramic Production Technology among the Asurini of Xingu: Technical choices, transformations and enchantment
Authors: Silva Fabíola Andréa
Published: November 2019

Abstract Several studies in the anthropology of techniques have emphasized that beyond their material and pragmatic aspects, technologies are social constructs that produce meanings. Moreover, technical processes mediate relations between persons (human and nonhuman) and things, as a mode of transformative and symbolic action for the (re)creation of the world. In this article my intention is to present an ethnographic description of the ceramic production technology of the Asurini do Xingu to show the intertwining of the technical choices with the principles and social, aesthetic and cosmological perceptions of this people about the objects, and materials, and their transformations.
Estudos e pesquisas do e sobre o corpo: a produção da Pro-Posições (1990-2018)
Authors: Ayoub Eliana , Soares Carmen Lúcia
Published: November 2019

Resumo Os estudos e as pesquisas do e sobre o corpo muito recentemente se tornaram objeto de investigação das ciências humanas e também do campo da educação. Este artigo tem como objetivo apresentar a produção da revista Pro-Posições, relacionada aos estudos e às pesquisas sobre esse tema, desenvolvidas a partir de distintas abordagens e perspectivas teóricas, desde a sua criação em 1990 até 2018. Esta produção foi repertoriada por meio de buscas nos campos título, resumo e palavras-chave, utilizando-se dos seguintes descritores: corpo; cuerpo; educação física; ginástic; gímnic; dança; esport; lazer; recrea. Foi possível identificar um conjunto significativo de 105 publicações que abrangem artigos, apresentações, resenhas e outros textos, contemplando as diferentes seções da revista. Isso também demonstra ser este um periódico sintonizado com temas emergentes, originais e/ou pouco considerados, podendo ser reconhecido como uma publicação da área da educação fortemente aberta ao diálogo amplo e qualificado.
O pensamento plástico das capas de Pro-Posições
Authors: Trevisan Anderson Ricardo
Published: November 2019

Resumo Este artigo propõe uma leitura das capas da revista Pro-Posições a partir de um caminho metodológico oferecido pela sociologia histórica de arte de Pierre Francastel, com base em seu conceito-chave de pensamento plástico. A análise levou em conta as imagens, as fontes e as cores presentes nas capas, bem como a história social dos agentes envolvidos em sua elaboração, especialmente os artistas plásticos. Como conclusão, percebeu-se que, ao longo do tempo, a revista foi perdendo sua característica visual, atendendo à tendência contemporânea editorial, em que plataformas eletrônicas como a SciELO oferecem um modo padronizado de editar e publicizar informações científicas. Nesse universo on-line, as capas parecem se tornar algo ultrapassado, o que convém ser problematizado. Afinal, faz sentido a noção de capa no mundo do periódico científico digital hoje?
O Conceito de Vida: uma discussão à luz da educação
Authors: Ferraro José Luís Schifino
Published: November 2019

Resumo: Recolocar o conceito de vida no centro da discussão epistemológica é essencial para que se possa compreender sua potência e seus efeitos no interior de um discurso que antes de pretender ser científico, é filosófico. Nesse sentido, o presente ensaio joga luzes sobre a vida inserindo-a em uma espécie de grade de inteligibilidade construída a partir de autores como Nietzsche, Bachelard, Canguilhem, Wittgenstein, Foucault, Deleuze, Guattari entre outros. Assim, trata-se de uma aproximação epistemológica possível para esse conceito no entrecruzamento da filosofia e das ciências biológicas com referências práticas que advém do campo da educação, onde percebemos sua funcionalidade.
Entre o digno e o precário: enquadramento biopolítico de mulheres em fotografias jornalísticas sobre o Programa Bolsa-Família
Authors: Marques Ângela Cristina Salgueiro , Martino Luís Mauro Sá
Published: November 2019

RESUMO Este texto delineia, a partir de Foucault, Fassin, Rancière e Butler, a existência de um enquadramento biopolítico de cidadãs e mulheres empobrecidas no contexto da implementação de políticas sociais. A reflexão aqui desenvolvida apresenta resultados parciais de projeto de pesquisa desenvolvido com apoio do CNPq, no qual são analisadas 150 imagens relacionadas ao Programa Bolsa Família, reunidas entre os anos de 2003 a 2015, publicadas nos veículos Folha de S. Paulo, Estado de S. Paulo, O Globo, Veja e IstoÉ. O argumento central é que esse enquadramento envolve a produção de narrativas que traçam distinções entre modos de vida considerados “dignos” e outros não, ressaltando situações de vulnerabilidade da vida e da governamentalidade que formata cenas de aparência, preparando-as para definir cidadãos e grupos exemplares a partir de determinados parâmetros de consideração e apreciação.
O conceito de aspas verbo-visuais e suas classificações
Authors: Vianna Rodolfo
Published: November 2019

RESUMO Este artigo tem por objetivo apresentar o conceito de aspas verbo-visuais e suas classificações. O fenômeno deve ser entendido como um desdobramento metaenunciativo opacificante (em analogia à modalização autonímica, presente no plano verbal), resultante de determinadas relações entre elementos verbais e visuais constitutivos de um mesmo enunciado, uma vez tomada sua dimensão verbo-visual. São três as classificações do fenômeno: aspas verbo-visuais de relação direta entre elementos verbais e visuais, aspas verbo-visuais de opacificação de elementos verbais no plano visual e aspas verbo-visuais de alegoria verbo-visual opacificante. A contribuição pretendida é oferecer ao campo dos estudos sobre a linguagem o conceito de aspas verbo-visuais e suas classificações, com o intuito de auxiliar com um novo instrumental teórico-metodológico as pesquisas que se debruçam sobre a dimensão verbo-visual dos enunciados e suas formas de produção de efeitos de sentido.
Uncertainty in critical illness and the unexpected: important mediators in the process of nurse-family communication
Authors: Mendes Anabela Pereira
Published: November 2019

ABSTRACT Objective: The purpose of this study was to understand, based on the Mishel’s Theory of Uncertainty in Illness and the Theory of Transitions of Meleis, in which way uncertainty in illness and the unexpected mediated the process of nurse-family communication and are translated into lived experience of the family. Method: Considering the intentionality of the research, it fits into a qualitative paradigm and a phenomenological approach, according to Van Manen. Participants were referred to as “snowball” and the data collection was performed by interview with open questions. Results: In the analysis of the data, three essential themes were identified: The antecedents of uncertainty: condition inherent to the subject; The process of assessing uncertainty: capacities and opportunities; The way to deal with uncertainty: coping strategies. Conclusion and implications for practice: Family member who lives the uncertainty has personal conditions that influence the process of appreciation and deal with uncertainty. The communication that establishes with the nurses, in particular in the search for information, will be mediated by the experience of uncertainty, in a constant unforeseen. The adaptation that is desired and demanded arises from coping strategies developed, with the nurses too, considering uncertainty a danger or an opportunity.
Household Debt and the Heterogeneous Effects of Forward Guidance
Authors: Paustian Matthias , Ferrante Francesco
Published: November 2019

We develop an incomplete-markets heterogeneous agent New-Keynesian (HANK) model in which households are allowed to lend and borrow, subject to a borrowing constraint. We show that, in this framework, forward guidance, that is the promise by the central bank to lower future interest rates, can be a powerful policy tool, especially when the economy is in a liquidity trap. In our model, the power of forward guidance is amplified by three redistributive channels, absent in a representative agent new- Keynesian model (RANK) or in a HANK model without private debt. First, expected lower rates imply a future transfer of wealth from savers to borrowers, reducing precautionary motives and stimulating current demand and inflation. Second, higher initial inflation lowers the path of the real rate increasing the wealth of borrowers, who have a higher marginal propensity to consume (MPC). Third, if debt is nominal, debt deflation generates also a wealth transfer towards high-MPC borrowing-constrained agents, further increasing aggregate consumption and inflation. These channels amplify each other in a liquidity trap, and can make forward guidance more powerful in a HANK model than in a RANK framework. These results contrast with previous research on HANK models, which focused on frameworks where agents were not allowed to borrow, and which found negligible effects of forward guidance.