Alsidium oliveiranum sp. nov. (Rhodomelaceae, Rhodophyta), an overlooked species from the southwestern Atlantic based on morphology and DNA sequence data

Guimaraes, Silvia M.P.B.,Soares, Luanda Pereira,Fujii, Mutue Toyota,Diaz-Tapia, Pilar The Korean Society of Phycology 2019 ALGAE Vol.34 No.3

The exploration of seaweed diversity in poorly studied habitats has often led to the discovery of new species. Sand-covered rocks are an example, as they received less attention than sand-free rocky intertidal habitats during seaweed diversity surveys in Brazil. In sand-covered rocks from Espirito Santo and Rio de Janeiro we found an alga whose morphology was unique among rhodomelacean species previously reported in Brazil. With the aim to clarify the taxonomic identity of this species we studied its morphology, as well as its phylogenetic relationships. Molecular analyses resolved this species in the genus Alsidium (tribe Alsidieae) and differed from sequenced congeners with divergences ${\geq}2.5$ and 4.2% in the rbcL and cox1 genes, respectively. Morphological characters were in agreement with the genus Alsidium, and differed from other species currently recognized in the genus. The species consisted of a basal crust and scarcely branched erect axes with seven pericentral cells covered by a continuous layer of cortical cells. Reproductive structures were formed on clusters of short determinate branches. Therefore, the new species A. oliveiranum is proposed based on morphological and molecular evidence. Our findings contribute to better understand the diversity of the tribe Alsidieae, which is particularly diverse in the Americas.

Mapping Soil Zinc Levels and Spatial Variability in Brazil: Is Zinc Deficiency a Problem for Highly Technified Farmers in the Brazilian Cerrado?

Luiz Roberto Guimaraes Guilher,Guilherme Amaral De Souza,Joao Guilherme Vanzella Moraes,Geraldo Janio De Oliveira Lima 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

Off-gassing Woodblock Prints - Storage Impact Considerations and Mitigation Strategies -

Ana Teresa Guimaraes Romero,Toshiya Matsui,Eriko Nagahama 한국문화재보존과학회 2020 보존과학회지 Vol.36 No.1

The storage environment of a Japanese woodblock print collection was assessed for organic acids. The active air sampling method was used to collect organic acid emissions in the low microgram range from areas of a selected woodblock print with different pigments, following which an off-gassing mitigation strategy based on the fan filter unit(FFU) system was investigated. Research findings revealed that the off-gassing behavior of woodblock prints is significantly impacted by storage practices and to a lesser degree by the pigments. The FFU system can be used as a mitigation strategy, but the permanence of the results depends on the storage conditions.

장거리 관계 유지를 위한 잠재적 인터랙션 요소 연구

마리아나구이마레스 ( Mariana Assumpcao Bertaglia Guimaraes ),이희명 ( Heemyoung Yi ) 한국공간디자인학회 2018 한국공간디자인학회논문집 Vol.13 No.2

(연구배경 및 목적) 물리적으로 멀리 떨어져 있는 상태로 관계를 유지하는 장거리 인간관계는 급속한 세계화로 보편적인 현상이 되었다. 또한 소셜네트워크의 발전은 거리에 상관없이 인간관계를 밀접하게 만들기도 한다. 그럼에도 불구하고 장거리 인간관계는 장기간에 걸쳐 수행 될 경우 물리적인 거리는 결국 문제를 발생시킨다. 본 연구는 이러한 장거리 인간관계를 지속적으로 밀접하게 유지하기 위한 커뮤니케이션 방법을 모색하는데서 출발했으며, 이런 관계에 도움을 줄 수 있는 디자인에 밑거름이 되는 사용자 리서치를 목적으로 한다. (연구방법) 본 연구는 물리적으로 멀리 떨어져 있으면서 친밀하고 밀접한 관계인 부부 혹은 연인과 부모-자녀 관계에 대해 중점을 두었다. 이들이 관계를 지속적으로 밀접하게 유지하고 물리적 거리를 극복하기 위한 현재의 의사소통 방법과 종류 그리고 장, 단점을 알아보고자 인터뷰했다. 장거리 인간관계의 경험이 있는 브라질, 한국, 유럽, 미국, 일본, 아프리카 및 필리핀 출신 성인 47명의 참가자에게 온라인 설문을 실행했으며, 개방형 질문으로 서술형 대답을 얻었다. 성인 보다 자기표현이 섬세하지 못한 어린이들을 상대로는 참여 디자인 리서치 방법을 적용했다. 6세에서 12세 어린이들에게 장거리 관계의 사례가 되는 이야기를 들려주고 이들의 생각을 이미지 콜라주와 그림그리기 등으로 표현하도록 했다. 또한 11~12세 참가자들은 문제적 상황을 해결할 수 있는 도구를 제안 하도록 하여 장거리 관계에서 필요한 디자인 요소를 얻었다. (결과) 연구결과 장거리 관계를 더욱 밀접하게 유지하기 위해서 필요한 것은 따뜻함, 편안함, 동의, 승인, 안심, 육체적 매력과 같은 감정을 전달할 수 있는 강력한 비언어적 수단으로 접촉이 필요함을 확인했다. (결론) 본 연구는 인간의 감각을 기술로 전달하여 실질적 인간 세계를 확장하고 직관적이고 자연스러운 의사소통 방법에 대한 탐구의 시작으로 추후 다양한 연구가 진행 될 수 있다. (Background and Purpose) Long-distance relationships have become a common reality, as globalization has facilitated the opportunity to move from one country to another. Social networks have also shown that online dating allows people to make real connections. Maintaining contact is the most important factor in cultivating such relationships, but geographical distance can make such relationships difficult when they are maintained over a long period of time. (Method) This research aims to open up possibilities in the design of devices that can fulfill necessities in the way people express themselves. This study examines the intimate relationships of geographically isolated people, with a focus on romantic and parent-child relationships, and it is an exploratory study on how people in long-distance relationships communicate with each other, what are the benefits and deficiencies of the tools they use for communication, and what they need to make interpersonal communication effective in overcoming distance through such communication tools. The methodology includes qualitative online surveys with participants from Brazil, South Korea, Europe, the US, Japan, Africa, and the Philippines. In addition, a participatory design was used with kids between 6 to 12 years old as co-designers in order to evaluate children’s point of view of long-distance relationships in order to gain a different perspective. (Results) Based on the results of the survey, the value of contacts as a powerful non-verbal means for conveying emotions such as comfort, consent, approval, relief, and physical attraction was identified. The greatest value from this research was derived from the finding of a new view of possibilities and ideas that came from children's minds, offering inspiration to divert from screenings and pre-set solutions. The findings lead to the conclusion that kids between 6 to 8 years old have a preference for ludic interactions in communicating with their parents and informing them when they need attention. In contrast, kids between 11 to 12 years old care about feeling the presence of loved ones. (Conclusions) This exploratory study was designed to bring deeper knowledge about affective long-distance relationships, with a focus on both romantic and parent-child relationships, since such relationships face the most difficulties during periods in which such individuals have to live separately. Contributing useful findings to future related studies, this research provides insights regarding psychological and technical aspects on maintaining long-distance relationships. Studying participants through the use of qualitative surveys, mostly through open-ended questions, was essential to gain close insights about how they deal with their long-distance relationships and how they seek support for such relationships while maintaining intimacy and strong links.

Prenatal MRI Findings of Fetuses with Congenital High Airway Obstruction Sequence

Carolina V. A. Guimaraes,Leann E. Linam,Beth M. Kline-Fath,Lane F. Donnelly,Maria A. Calvo-Garcia,Eva I. Rubio,Jeffrey C. Livingston,Robert J. Hopkin,Elizabeth Peach,Foong-Yen Lim,Timothy M. Crombleho 대한영상의학회 2009 Korean Journal of Radiology Vol.10 No.2

Objective: To define the MRI findings of congenital high airway obstruction sequence (CHAOS) in a series of fetuses. Materials and Methods: Prenatal fetal MR images were reviewed in seven fetuses with CHAOS at 21 to 27 weeks of gestation. The MRI findings were reviewed. The MRI parameters evaluated included the appearance of the lungs and diaphragm, presence or absence of hydrops, amount of amniotic fluid, airway appearance, predicted level of airway obstruction, and any additional findings or suspected genetic syndromes. Results: All the fetuses viewed (7 of 7) demonstrated the following MRI findings: dilated airway below the level of obstruction, increased lung signal, markedly increased lung volumes with flattened or inverted hemidiaphragms, massive ascites, centrally positioned and compressed heart, as well as placentomegaly. Other frequent findings were anasarca (6 of 7) and polyhydramnios (3 of 7). MRI identified the level of obstruction as laryngeal in five cases and tracheal in two cases. In four of the patients, surgery or autopsy confirmed the MRI predicted level of obstruction. Associated abnormalities were found in 4 of 7 (genetic syndromes in 2). Postnatal radiography (n = 3) showed markedly hyperinflated lungs with inverted or flattened hemidiaphragms, strandy perihilar opacities, pneumothoraces and tracheotomy. Two fetuses were terminated and one fetus demised in utero. Four fetuses were delivered via ex utero intrapartum treatment procedure. Conclusion: MRI shows a consistent pattern of abnormalities in fetuses with CHAOS, accurately identifies the level of airway obstruction, and helps differentiate from other lung abnormalities such as bilateral congenital pulmonary airway malformation by demonstrating an abnormally dilated airway distal to the obstruction. Objective: To define the MRI findings of congenital high airway obstruction sequence (CHAOS) in a series of fetuses. Materials and Methods: Prenatal fetal MR images were reviewed in seven fetuses with CHAOS at 21 to 27 weeks of gestation. The MRI findings were reviewed. The MRI parameters evaluated included the appearance of the lungs and diaphragm, presence or absence of hydrops, amount of amniotic fluid, airway appearance, predicted level of airway obstruction, and any additional findings or suspected genetic syndromes. Results: All the fetuses viewed (7 of 7) demonstrated the following MRI findings: dilated airway below the level of obstruction, increased lung signal, markedly increased lung volumes with flattened or inverted hemidiaphragms, massive ascites, centrally positioned and compressed heart, as well as placentomegaly. Other frequent findings were anasarca (6 of 7) and polyhydramnios (3 of 7). MRI identified the level of obstruction as laryngeal in five cases and tracheal in two cases. In four of the patients, surgery or autopsy confirmed the MRI predicted level of obstruction. Associated abnormalities were found in 4 of 7 (genetic syndromes in 2). Postnatal radiography (n = 3) showed markedly hyperinflated lungs with inverted or flattened hemidiaphragms, strandy perihilar opacities, pneumothoraces and tracheotomy. Two fetuses were terminated and one fetus demised in utero. Four fetuses were delivered via ex utero intrapartum treatment procedure. Conclusion: MRI shows a consistent pattern of abnormalities in fetuses with CHAOS, accurately identifies the level of airway obstruction, and helps differentiate from other lung abnormalities such as bilateral congenital pulmonary airway malformation by demonstrating an abnormally dilated airway distal to the obstruction.

Black Urea, A Fertilizer with Lower Ammonia Volatilization

Reinaldo Cantarutti,Gelton Guimaraes,Diogo Paiva,Edson Mattiello 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

Background Considerations for the 2H(7Be,3H)6Be Experimental Data Using the Phase Space Model

K. Y. Chae,V. Guimaraes 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.65 No.9

The 2H(7Be,3H)6Be reaction was measured at the Holifield Radioactive Ion Beam Facility of theOak Ridge National Laboratory in 2004 to search for the resonances in the unbound 6Be nucleus. The results showed, however, no resonance was evident in the experimental data, which impliedthat the direct transfer to 6Be levels was not particularly strong compared to other reaction mechanismsthat produced tritons in their exit channels. In the present work, theoretical calculationswith background considerations are performed to better understand the cross-section data for the2H(7Be,3H)6Be reaction using the phase space model.

Relationship between Phytophysiognomy and Classes of Wetland Soil of Northern Pantanal Mato Grosso - Brazil

Leo Adriano Chig,Eduardo Guimaraes Couto Eduard,Catia Nunes Da Cunha Catia Nun 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

Functional Groups of Organic Matter in Soils Podzolization - Upper Negro River Basin- Amazon

Bruna Rossin,Debora Mendes,Felipe Guimaraes,Nadia Regina Do Nascimento,Guilherme Taitson Bueno 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

Gas Exchanges and Dehydration in Different Intensities of Conditioning in Tifton 85 Bermudagrass: Nutritional Value during Hay Storage

M. Pasqualotto,M.A. Neres,V.F. Guimaraes,J. Klein,A.M. Inagaki,C. Ducati 아세아·태평양축산학회 2015 Animal Bioscience Vol.28 No.6

The present study aimed at evaluating the intensity of Tifton 85 conditioning using a mower conditioner with free-swinging flail fingers and storage times on dehydration curve, fungi presence, nutritional value and in vitro digestibility of Tifton 85 bermudagrass hay dry matter (DM). The dehydration curve was determined in the whole plant for ten times until the baling. The zero time corresponded to the plant before cutting, which occurred at 11:00 and the other collections were carried out at 8:00, 10:00, 14:00, and 16:00. The experimental design was randomised blocks with two intensities of conditioning (high and low) and ten sampling times, with five replications. The high and low intensities related to adjusting the deflector plate of the free iron fingers (8 and 18 cm). In order to determine gas exchanges during Tifton 85 bermudagrass dehydration, there were evaluations of mature leaves, which were placed in the upper middle third of each branch before the cutting, at every hour for 4 hours. A portable gas analyser was used by an infrared IRGA (6400xt). The analysed variables were photosynthesis (A), stomatal conductance (gs), internal CO2 concentration (Ci), transpiration (T), water use efficiency (WUE), and intrinsic water use efficiency (WUEi). In the second part of this study, the nutritional value of Tifton 85 hay was evaluated, so randomised blocks were designed in a split plot through time, with two treatments placed in the following plots: high and low intensity of cutting and five different time points as subplots: cutting (additional treatment), baling and after 30, 60, and 90 days of storage. Subsequently, fungi that were in green plants as well as hay were determined and samples were collected from the grass at the cutting period, during baling, and after 30, 60, and 90 days of storage. It was observed that Tifton 85 bermudagrass dehydration occurred within 49 hours, so this was considered the best time for drying hay. Gas exchanges were more intense before cutting, although after cutting they decreased until ceasing within 4 hours. The lowest values of acid detergent insoluble nitrogen were obtained with low conditioning intensity after 30 days of storage, 64.8 g/kg DM. The in vitro dry matter of Tifton 85 bermudagrass did not differ among the storage times or the conditioning intensities. There was no fungi present in the samples collected during the storage period up to 90 days after dehydration, with less than 30 colony forming units found on plate counting. The use of mower conditioners in different intensities of injury did not speed up the dehydration time of Tifton 85.