USING A HEAT PUMP AS AN ALTERNATIVE TO SUPPORT SOLAR COLLECTOR FOR WATER HEATING IN BRAZIL

ROBERTS VINICIUS DE MELO REIS,RAPHAEL NUNES OLIVEIRA,LUIZ MACHADO,RICARDO NICOLAU NASSAR KOURY 대한설비공학회 2012 International Journal Of Air-Conditioning and Refr Vol.20 No.3

With related greenhouse e®ect environmental issues linked to the constant problems of the °uctuations in oil prices, the use of solar energy is an important renewable energy source. Brazil is a country which is privileged considering the high rates of solar irradiation present throughout almost the entire national territory. Nevertheless, during certain times of the year, there is a solar energy de¯cit, which leads solar systems to require electrical resistance support at these times. The use of electrical resistance represents 23.5% of electric energy consumption and it presents a low residential energy e±ciency. The purpose of this work is an alternative technical design for reduction of electric energy consumption through the use of a solar energy system together with a generating heat pump for water heaters for households, as well as the ¯nancial feasibility study on the use of this system. One such heat pump has been designed, constructed and tested experimentally. The average performance coe±cient is equal to 2.10, a low value due to the use of a hermetic reciprocating compressor. Despite this low moderate price coe±cient of acquisition and installation of a heat pump, one can allow a return on investment in from 2.1 to 3.3 years, whereas the equipment has a useful life of about 20 years, this period of return on investment is interesting.

Percepção de consoantes oclusivas em posição inicial de palavra por estudantes de língua portuguesa na Coreia do Sul

( Juliano Paiva Junho ),( Karina G. S. De Oliveira ) 한국포르투갈-브라질학회 2020 포르투갈-브라질 연구 Vol.17 No.2

Este artigo apresenta uma análise inicial de dados coletados sobre a percepção dos sons da língua portuguesa por falantes nativos de coreano, estudantes em fase inicial de aprendizado na BUFS (Busan University of Foreign Studies ─ Universidade de Estudos Estrangeiros de Busan), Coreia do Sul. Discutimos alguns dos diversos sistemas de romanização do coreano e suas idiossincrasias. Seguimos comentando brevemente os sistemas fonológicos de ambas a línguas e comparando-os frente a frente, demonstrando os seus pontos de divergência que podem vir a criar problemas quando do ensino da língua portuguesa. Continuamos discutindo o experimento elaborado com palavras selecionadas a partir dessas divergências dos sistemas fonológicos das línguas, apresentamos a metodologia pela qual os dados foram coletados e as formas de processamento computacional usadas. Por fim, focamo-nos na análise das consoantes oclusivas em posição inicial de palavras, visto que apresentam grande dificuldade para os aprendizes. Apresentamos os resultados obtidos dos alunos que demonstram que a percepção dos fonemas consonantais surdos (/p, t, k/) e sonoros (/b, d, g/) da língua portuguesa não é algo simples que se possa ensinar sem esforço. Comentamos, brevemente, ao final do artigo, propostas de abordagem didática para os problemas levantados sobre o ensino de fonética/fonologia do português para coreanos. This article presents an initial analysis of data collected on the perception of sounds of the Portuguese language by native Korean speakers, students in the initial learning phase at BUFS (Busan University of Foreign Studies - Busan University of Foreign Studies), South Korea. We discuss some of the several systems of Korean romanization and its idiosyncrasies. We continue commenting briefly on the phonological systems of both languages and comparing them face to face, demonstrating their points of divergence that may create problems when teaching Portuguese. We then discuss the experiment developed with words selected from divergent points in each language’s phonological system and present the methodology by which the data were collected, as well as the forms of computational processing used. Finally, we focus on the analysis of the occlusive consonants in word initial position since they present great difficulty for Korean students. We present results that the perception of voiceless (/p, t, k/) and voiced (/b, d, g/) consonant phonemes in Portuguese is not something simple that can be taught without effort. At the end of the article, we briefly propose a didactic approach on the problems raised about teaching Portuguese phonetics/phonology to Koreans.

ASHINI, D’ YVES THÉRIAULT: DE LA DÉNONCIATION DE LA DYSTOPIE À L’ ANNONCE DES RÉPARATIONS

Oliveira Humberto Luiz Lima de 한국캐나다학회 2022 Asia-Pacific Journal of Canadian Studies (APJCS) Vol.28 No.1

Pourquoi lire un récit littéraire écrit par un Blanc, thématisant la situation des Peuples de Premières Nations dans l’espace québécois, lorsque plusieurs auteurs et autrices autochtones sont déjà reconnus sur la scène littéraire panaméricaine? Dans ce travail, nous aimerions mettre en évidence le caractère inaugural de ce récit littéraire intitulé Ashini, du Québécois Yves Thériault dont le personnage homonyme échappe tant aux stéréotypes négatifs qu’aux idéalisations que jusqu’alors enfermaient la figura de l’“Amérindien”. Et cela bien avant l’émergence de la littérature autochtone écrite (Boudreau: 1993). Dans ce roman Yves Thériault réussit, de façon magistrale, tant à faire la dénonciation de la dystopie (la déstructuration du monde autochtone) ainsi que l’annonce des réparations : le droit à la citoyenneté canadienne lequel passerait par la réappropriation des territoires ancestraux usurpés aux Premières Nations par les Blancs qui avaient copié le colonialisme (Morisset: 2004).

Corns with Different Nutritional Profiles on Growing and Finishing Pigs Feeding (30 to 90 kg)

De Oliveira, Gisele Cristina,Moreira, Ivan,De Souza, Ana Lucia Pozzobon,Murakami, Alice Eiko,Parra, Angela Rocio Poveda,De Oliveira Carvalho, Paulo Levi,Borile, Maicon Danner Asian Australasian Association of Animal Productio 2011 Animal Bioscience Vol.24 No.7

Three experiments were carried out to determine the nutritional value and to verify the pig performance in growing and finishing phases (30 to 90 kg) fed on diets containing common corn (CC), high-lysine corn (HLC) and high-oil corn (HOC). In the total digestibility trial (Exp. I) 12 barrows were used. Values of digestible energy (DE) and metabolizable energy (ME) as-fed basis for CC, HLC and HOC, were: 3,396 and 3,275 kcal/kg; 3,248 and 3,139 kcal/kg; 3,445 and 3,308 kcal/kg, respectively. In order to determine the apparent and true ileal digestibility coefficients of amino acids, as well as the values of true digestible amino acids of the CC, HLC and HOC, an ileal digestibility trial was done (Exp. II) with T-cannulated barrows ("T" simple). The treatments consisted of three diets, with one of them as the sole source of protein (CC, HLC and HOC). In the performance experiment (Exp. III), 36 crossbred pigs, allotted in a completely randomized design with three treatments and 12 replications were used. Treatments consisted of three diets: 1 - CC; 2 - HLC and 3 - HOC. It was observed no difference for performance and carcass variables among the corns with different nutritional profiles. Results of the three experiments highlighted the importance of segregating corns in their real chemical and energetic composition as well as the values of true digestible amino acids for formulating diets for growing and finishing pigs.

Placental development in the early stages of red-rumped agouti pregnancy (Dasyprocta leporina Linnaeus, 1758)

Gleidson Benevides de Oliveira,Helio Noberto de Araújo Júnior,Carlos Eduardo Bezerra de Moura,Phelipe Oliveira Favaron,Alexsandra Fernandes Pereira,Moacir Franco de Oliveira 대한수의학회 2023 Journal of Veterinary Science Vol.24 No.5

Background: Hystricomorpha rodents display a similar placentation model to humans. The present study was carried out considering the scarcity of information concerning the placental development in agouti. Objective: Describe the microscopy of the placenta, subplacenta and yolk sac of agoutis in early pregnancy and report on the inversion of the yolk sac. Methods: Fifteen females between the 14th–32nd day of gestation were used following euthanasia. Gestational buttons were collected, fixed, processed, stained to optical microscopy or immunohistochemistry. Results: Chorioallantoic placenta (CP) ranged from conical to a half-sphere, as follows: from the 14th to 17th day, the CP displays an inverted “V” shape, predominantly formed by cytotrophoblasts; from 20 to 22 days, formed almost entirely by cytotrophoblasts; at 28 days, a half sphere, with distinct lobes and interlobular area, numerous maternal gaps delimited by syncytiotrophoblasts and trophoblast giant cells; at 32 days, globose and undergoing the maturation process. Subplacenta, located between decidua and CP, initially presents septa consisting of simple columnar epithelium and after 17 days, comprising stratified epithelium. Visceral yolk sac (VYS) is attached to two CP projections between 14 and 17 days, formed by a simple cubic epithelium and inverted. Between 20 and 22 days, the epithelium displays apical villous projections with cytoplasmic vacuoles and a vascularized mesoderm. After the 24th day, the VYS near the placenta is pleated, very vascularized and villous, with decreased villi sizes further away from the placenta. Conclusion: The agouti CP displays similar characteristics to other hystricomorpha, including placenta lobulation, a subplacenta and an inverted vitelline placenta.

Antidiabetic Effect of the Chrysobalanus icaco L. Aqueous Extract in Rats

Ana Paula de Oliveira Barbosa,Gabriela de Oliveira Silveira,Igor Alexandre Cortes de Menezes,Jose´ Melquiades Rezende Neto,Jose´ Leal C. Bitencurt,Charles dos Santos Estavam,Amanda do Carmo Bion de Li 한국식품영양과학회 2013 Journal of medicinal food Vol.16 No.6

Chrysobalanus icaco L. is a medicinal plant popularly known in Brazil as ‘‘Grageru’’ or ‘‘Abageru.’’ It is used in African and American continents as medicinal food in the treatment of several diseases, including diabetes. This study used phytochemical screening to determine the antioxidant and α-amylase inhibitor activities of the aqueous extract (AECI) of C. icaco, and evaluated its antidiabetic potential in rodents. Phytochemical screening was performed using colorimetric tests with specific reagents. The in vitro antioxidant activity was evaluated by the scavenging activity of 2,2-diphenyl-1-picril-hydrazyl. The lethality test and behavioral screening was performed using an oral administration of 5 g/kg of AECI. The antidiabetic potential of AECI was evaluated through the oral glucose tolerance test (OGTT) and chronic hypoglycemic test at the doses of 100, 200, and 400 mg/kg (orally). Metformin was used as a reference drug in all tests. Diabetes was induced by injection of alloxan (40 mg/kg; intravenously). Phytochemical screening showed the presence of various compounds, including tannins, flavones, triterpenoids, steroids, saponins, and alkaloids. The in vitro antioxidant test demonstrated that AECI presented potent antioxidant activity. The lethality test and behavioral screening did not show lethality signs. In the OGTT test, AECI administration was not able to inhibit the elevation of glycemia. However, chronically administrated, it was able to cause a significant (P < .05) reduction of glycemia from 335 ± 27 up to 197 ± 15 mg/dL. These results demonstrate that the AECI presents a potential beneficial effect for diabetes.

Impacts of the transition from family farming to monoculture farming on the eating habits of two cities in the Valle de Tenza, Boyacá—Colombia

Zambrano Jennifer Lorena Avendaño,da Cruz Denise Dias,de Oliveira Paulino Flavia 한국식품연구원 2022 Journal of Ethnic Foods Vol.9 No.-

The Valle de Tenza region, located in the Department of Boyacá—Colombia, shows a transition situation from the family farming of various food crops to coffee farming following an agribusiness model. From this perspective, in order to understand the current scenario of food sovereignty in Guateque and Guayatá, two cities of the Valle de Tenza, this study evaluated socioeconomic, environmental, and cultural aspects based on questionnaires and semi-structured interviews applied to peasant families that practice family farming and/or coffee farming. Moreover, these same aspects were also evaluated among urban food consumers. These evaluations aimed to assess the perception of the interviewees about the availability of regional food crops and current eating habits in relation to those from a decade or more ago, in addition to investigating their knowledge about the traditional cuisine of the region. The cultivation of regional food crops used to prepare local and regional traditional dishes such as piquete , sancocho , and different amasijos based on corn and sagú ( Maranta arundinacea ) has been significantly reduced. The investigation revealed changes in the eating habits of the Valle de Tenza inhabitants due to the consumption of processed foods and the reduced cultivation of local traditional food crops. As a consequence of this transition to coffee production, the most representative traditional foods are being replaced by more profitable crops, including coffee and some fruits not traditionally grown in the Valle de Tenza and with more local and regional acceptance. This reduction can affect food availability and change the gastronomic and cultural identity of the Valle de Tenza population, among other aspects related to food sovereignty.

The creation of a body donation program at Federal University of Juiz de Fora in Brazil: academic importance, challenges and donor profile

André , Gustavo Fernandes de Oliveira,Augusto Ferreira Gonç , alves , Jú , lia Nunes Soares,Letí , cia Henriques Neto Salgado,Bruno Silveira Santana,Matheus Venâ,ncio Passos,Juliana Lopes de Oliveira 대한해부학회 2021 Anatomy & Cell Biology Vol.54 No.4

Dissection and human specimens study remain the gold standard method for teaching anatomy. Due to the increasing health science courses in Brazil, the traditional way of obtaining bodies for scientific purposes, the unclaimed ones, became insufficient. In addition, this source is no longer ethically appropriate according to anatomists. In order to maintain the teaching quality, the Federal University of Juiz de Fora (UFJF) in Brazil, inspired by successful initiatives around the world, created a body donation program; Sempre Vivo. Besides the bureaucratic difficulty faced during its regulation, the implementation of a body donation program requires special attention regarding the religiosity, culture and uniqueness of the city s inhabitants. Informing people can demystify the process, avoid prejudice and increase the number of donors. In this way, an outreach project was designed to publicize Sempre Vivo and raise public awareness. In the first six years, Sempre Vivo reached the mark of 64 registered donors and seven bodies received. The donor’s profile corresponds to female (70.3%), 57 years of age, retired (50.8%), spiritist (53.1%) and with 12 years or more of formal education (90.6%). Considering that the UFJF has not received unclaimed bodies for ten years, the program was considered satisfactory up to this level and, in the future, it may be the exclusive source of anatomical specimens. The description of the creation and the publicizing of Sempre Vivo, the overcome challenges, as well as the donors’ profile, may encourage and facilitate the foundation of similar programs in Brazil and abroad.

Comparison of Methodologies to Quantify Phytate Phosphorus in Diets Containing Phytase and Excreta from Broilers

de P. Naves, L.,Rodrigues, P.B.,Bertechini, A.G.,Correa, A.D.,de Oliveira, D.H.,de Oliveira, E.C.,Duarte, W.F.,da Cunha, M.R.R. Asian Australasian Association of Animal Productio 2014 Animal Bioscience Vol.27 No.7

The use of a suitable methodology to quantify the phytate phosphorus ($P_{phy}$) content in both the feed and the excreta from broilers is required to enable accurate calculation of the catalytic efficiency of the phytase supplemented in the feed. This study was conducted to compare 2 analytical methodologies (colorimetry and also high-performance liquid chromatography with a refractive index detector) in order to calculate the phytase efficiency by utilizing the results from the methodology that was shown to be the most appropriate. One hundred and twenty broilers were distributed in a $(4+1){\times}2$ factorial arrangement, corresponding to 4 diets that were equally deficient in P supplemented with increasing levels of phytase (0, 750, 1,500, and 2,250 units of phytase activity - FTU - per kg of feed) plus 1 positive control diet without phytase, supplied to male and female birds. The result indicated that the colorimetric methodology with an extraction ratio of 1:20 (mass of sample in g:volume of the solvent extractor in mL) was shown to be the most adequate. There was no interaction between the phytase level and the sex of the broilers (p>0.05). Males consumed 12% more $P_{phy}$ than did females (p<0.01), but the sex of the broilers did not affect (p>0.05) the excretion and retention coefficient of $P_{phy}$. The increase in the phytase level of the diet reduced (linear, p<0.01) the $P_{phy}$ excretion. The greatest $P_{phy}$ retention was estimated at 87.85% when the diet contained 1,950 FTU/kg (p<0.01), indicating that it is possible to reduce the inorganic P in the formulation at an amount equivalent to 87.85% of the $P_{phy}$ content present in the feed, which, in this research, corresponds to a decrease in 2.86 g of P/kg of the feed.

Bacterial adhesion and colonization differences between zirconia and titanium implant abutments: an in vivo human study

De Oliveira, Greison Rabelo,Pozzer, Leandro,Cavalieri-Pereira, Lucas,De Moraes, Paulo Hemerson,Olate, Sergio,De Albergaria Barbosa, Jose Ricardo Korean Academy of Periodontology 2012 Journal of Periodontal & Implant Science Vol.42 No.6

Purpose: Several parameters have been described for determining the success or failure of dental implants. The surface properties of transgingival implant components have had a great impact on the long-term success of dental implants. The purpose of this study was to compare the tendency of two periodontal pathogens to adhere to and colonize zirconia abutments and titanium alloys both in hard surfaces and soft tissues. Methods: Twelve patients participated in this study. Three months after implant placement, the abutments were connected. Five weeks following the abutment connections, the abutments were removed, probing depth measurements were recorded, and gingival biopsies were performed. The abutments and gingival biopsies taken from the buccal gingiva were analyzed using real-time polymerase chain reaction to compare the DNA copy numbers of Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, and total bacteria. The surface free energy of the abutments was calculated using the sessile water drop method before replacement. Data analyses used the Mann Whitney U-test, and P-values below 0.05 find statistical significance. Results: The present study showed no statistically significant differences between the DNA copy numbers of A. actinomycetemcomitans, P. gingivalis, and total bacteria for both the titanium and zirconia abutments and the biopsies taken from their buccal gingiva. The differences between the free surface energy of the abutments had no influence on the microbiological findings. Conclusions: Zirconia surfaces have comparable properties to titanium alloy surfaces and may be suitable and safe materials for the long-term success of dental implants.