Challenges for Activity Recognition with Real Data

In this paper, we introduce a large-scale activity data collection, and discuss the challenges for activity recognition with real data. We address the requirements of annotation for sequential activities and of utilizing device status, and also address research directions for unsupervised methods and complementary information.Ubicomp 2011 Workshop on　Mobile Sensing: Challenges, Opportunities and Future Directions, September 18, 2011, Beijing, Chin

Augmented Library: toward Fusion of Analog and Digital Libraries

Korean Biblia Society for Library and Information Science Occasional Papers Series, October, 2009, Seoul, Kore

Challenges for Activity Recognition with Real Data

In this paper, we introduce a large-scale activity data collection, and discuss the challenges for activity recognition with real data. We address the requirements of annotation for sequential activities and of utilizing device status, and also address research directions for unsupervised methods and complementary information.Ubicomp 2011 Workshop on　Mobile Sensing: Challenges, Opportunities and Future Directions, September 18, 2011, Beijing, Chin

Efeito do ácido fólico e da homocisteína sobre os processos de proliferação e diferenciação celular no telencéfalo de embriões de Gallus domesticus

TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Biologia.Micronutrientes são vitaminas e minerais obtidos da dieta, necessários para o crescimento, manutenção e reprodução dos indivíduos. O ácido fólico (AF) é uma vitamina do complexo B, que participa de importantes reações metabólicas, como a biossíntese de compostos essenciais. Sua deficiência está associada a elevados índices plasmáticos de homocisteína (Hcy), que ao se acumular intracelularmente, pode provocar defeitos de tubo neural (DTN). Neste estudo foi avaliado o efeito do AF e da Hcy sobre os processos de proliferação e diferenciação celular no telencéfalo de embriões de gallus domesticus. Para tal, ovos fertilizados de G. domesticus foram incubados a 38°C e a 65% de umidade, sendo os tratamentos realizados após 24 e 46 horas de incubação. Foram organizados grupos experimentais, como segue: controle - 50 μl salina (24 horas de incubação)+50 μl salina (46 horas de incubação); AF - 50 μl salina (24 horas de incubação)+0.5 μg AF (46 horas de incubação); Hcy - 50 μl salina (24 horas de incubação)+20 μmol Hcy (46 horas de incubação); AF+Hcy - 0.5 μg AF (24 horas de incubação)+20 μmol Hcy (46 horas de incubação). Após, os ovos foram selados com fita não tóxica e retornaram para a estufa, permanecendo até o sexto dia embrionário (E6), quando os embriões foram retirados dos ovos e preparados para as análises posteriores. Foram realizadas análises morfométricas das vesículas encefálicas e das camadas do telencéfalo (ependimária, manto e marginal). Técnicas de imuno-histoquímica foram utilizadas para avaliar a proliferação celular, diferenciação neuronal e glial, através dos anticorpos: anti-fosfohistona H3 (proliferação celular); anti–β tubulina III (diferenciação neuronal) e anti-GFAP (diferenciação glial). A morfometria da região cefálica demonstrou pouca variação entre os tratamentos realizados. Do mesmo modo, não foram observadas alterações na espessura das camadas do telencéfalo. Nos embriões tratados com Hcy verificou-se uma redução significativa da proliferação celular na camada ependimária. Na diferenciação neuronal, a Hcy interferiu na diferenciação dos neurônios, interferindo também na migração neuronal. Adicionalmente, verificou-se que o tratamento com Hcy interferiu na diferenciação dos astrócitos, aumentando sua expressão, conduzindo a uma resposta conhecida como gliose reativa. Os resultados demonstram que, embora a Hcy não tenha comprometido o crescimento das vesículas encefálicas e das camadas celulares do telencéfalo, induziu alterações nos processos de proliferação celular e de diferenciação neuronal e glial em G. domesticus.Micronutrients are vitamins and minerals obtained from the diet required for growth, maintenance and reproduction of individuals. Folic acid (FA) is an B vitamin that participates in important metabolic reactions, such as the biosynthesis of essential compounds. FA nutritional deficiency produces an increase in homocysteine (Hcy) levels, and can cause neural tube defects (DTN). In this study we evaluated the effect of FA and Hcy in processes of cell proliferation and differentiation in the telencephalon of embryos of Gallus domesticus. Fertilized eggs of G. domesticus were incubated at 38 ° C and 65% humidity, and treatments were performed after 24 and 46 hours of incubation. The experimental groups were organized as follows: control - 50 μl saline (24 hours incubation) + 50 μl saline (46 hours incubation); AF- 50 μl saline (24 hours incubation) + 0.5 μg AF (46 hours incubation); Hcy- 50 μl salina (24 hours incubation) + 20 μmol Hcy (46 hours incubation); AF+Hcy - 0.5 μg AF (24 hours incubation) + 20 μmol Hcy (46 hours incubation. After, the egg’s was sealed with non-toxic tape and returned to the incubator until the sixth embryonic day (E6). Thus the embryos were removed from eggs and prepared for further analysis. Morphometry of head and layers of telencephalon were performed. Immunohistochemistry were used to evaluate the cell proliferation, differentiation, neuronal and glial cell using the antibodie: anti-phosphohistona H3 (cell proliferation), anti-β tubulin III (neuronal differentiation) and anti-GFAP (glial differentiation). The morphology of cephalic region showed little variation among the treatments. Similarly, no changes were observed in the thickness of the layers of the telencephalon. Embryos treated with Hcy showed a significant reduction in cell proliferation in ependymal layer. Hcy caused disruptions in neuronal differentiation and migration. Additionally, it was found that treatment with Hcy interfer with the differentiation of astrocytes, increasing GFAP expression, leading to an astrocytic response known as reactive gliosis. These results demonstrate that, although Hcy has not compromised growth and brain vesicles layers of the telencephalon, induced significant changes in the processes of cell proliferation and in the differentiation of the neurons and glia in G. domesticus embryos

持続可能な機関リポジトリの新たなモデル: CSI プロジェクト「多様な情報資源の統合・提示」

DRF International Conference 2008 Open Access and Institutional Repository in Asia-Pacific (DRFIC 2008), 30th and 31st January, Osaka, JAPAN / デジタルリポジトリ連合国際会議2008 アジア・環太平洋地域におけるオープンアクセスと機関リポジトリ(DRFIC 2008), 平成20年1月30‐31日, 大阪大学 Session 2. Repository Sustainability -Material / セッション２. 持続可能なリポジトリの展開を目指して-資

IR and RI: 外部システムからのスムーズな利用

DRF International Conference 2008 Open Access and Institutional Repository in Asia-Pacific (DRFIC 2008), 30th and 31st January, Osaka, JAPAN / デジタルリポジトリ連合国際会議2008 アジア・環太平洋地域におけるオープンアクセスと機関リポジトリ(DRFIC 2008), 平成20年1月30‐31日, 大阪大学 Poster Session No.5-poster / ポスターセッション No.5-ポスタ

A Sustainable Model based on the Social Network Service to Support the Research Cycle

Third International Conference on Open Repositories 2008, 1-4 April 2008, Southampton, United KingdomIn this paper, we analyze requirements for institutional repositories from the viewpoint of the research cycle, and find that it is critical any existing repository system has little functions managing social relations of researchers. This leads us to a general model in which an SNS platform is an interface for researchers and an institutional repository is a backyard system. The SNS platform enables researchers to work together with co-workers. In addition to the interface, the SNS platform provides authentication and authorization mechanism for other backyard systems. Due to the mechanism, we can use, for instance, a search engine with the access control. Therefore academic resources not available to the public, such as a manuscript of a paper, can be safely indexed. Managing the authentication and authorization mechanism is done in a sustainable manner, compared to other standard authentication or authorization systems, such as SSO or ACL (Access Control List)

High Angular Resolution, Sensitive CS J=2-1 and J=3-2 Imaging of the Protostar L1551 NE: Evidence for Outflow-Triggered Star Formation ?

High angular resolution and sensitive aperture synthesis observations of CS ($J=2-1$) and CS ($J=3-2$) emissions toward L1551 NE, the second brightest protostar in the Taurus Molecular Cloud, made with the Nobeyama Millimeter Array are presented. L1551 NE is categorized as a class 0 object deeply embedded in the red-shifted outflow lobe of L1551 IRS 5. Previous studies of the L1551 NE region in CS emission revealed the presence of shell-like components open toward L1551 IRS 5, which seem to trace low-velocity shocks in the swept-up shell driven by the outflow from L1551 IRS 5. In this study, significant CS emission around L1551 NE was detected at the eastern tip of the swept-up shell from $V_{\rm{lsr}}$ = 5.3 km s$^{-1}$ to 10.1 km s$^{-1}$, and the total mass of the dense gas is estimated to be 0.18 $\pm$ 0.02 $M_\odot$. Additionally, the following new structures were successfully revealed: a compact disklike component with a size of $\approx$ 1000 AU just at L1551 NE, an arc-shaped structure around L1551 NE, open toward L1551 NE, with a size of $\sim 5000$ AU, i.e., a bow shock, and a distinct velocity gradient of the dense gas, i.e., deceleration along the outflow axis of L1551 IRS 5. These features suggest that the CS emission traces the post-shocked region where the dense gas associated with L1551 NE and the swept-up shell of the outflow from L1551 IRS 5 interact. Since the age of L1551 NE is comparable to the timescale of the interaction, it is plausible that the formation of L1551 NE was induced by the outflow impact. The compact structure of L1551 NE with a tiny envelope was also revealed, suggesting that the outer envelope of L1551 NE has been blown off by the outflow from L1551 IRS 5.Comment: 29 pages, 12 figures, Accepted for Publication in the Astrophysical Journa

Trustworthy SNS for Institutional Repositories -presentation slide

DRF International Conference 2008 Open Access and Institutional Repository in Asia-Pacific (DRFIC 2008), 30th and 31st January, Osaka, JAPAN / デジタルリポジトリ連合国際会議2008 アジア・環太平洋地域におけるオープンアクセスと機関リポジトリ(DRFIC 2008), 平成20年1月30‐31日, 大阪大学 Poster Session No.6-presentation slide / ポスターセッション No.6-口頭発表スライ