232 research outputs found
Construction of Latent Descriptor Space and Inference Model of Hand-Object Interactions
Appearance-based generic object recognition is a challenging problem because
all possible appearances of objects cannot be registered, especially as new
objects are produced every day. Function of objects, however, has a
comparatively small number of prototypes. Therefore, function-based
classification of new objects could be a valuable tool for generic object
recognition. Object functions are closely related to hand-object interactions
during handling of a functional object; i.e., how the hand approaches the
object, which parts of the object and contact the hand, and the shape of the
hand during interaction. Hand-object interactions are helpful for modeling
object functions. However, it is difficult to assign discrete labels to
interactions because an object shape and grasping hand-postures intrinsically
have continuous variations. To describe these interactions, we propose the
interaction descriptor space which is acquired from unlabeled appearances of
human hand-object interactions. By using interaction descriptors, we can
numerically describe the relation between an object's appearance and its
possible interaction with the hand. The model infers the quantitative state of
the interaction from the object image alone. It also identifies the parts of
objects designed for hand interactions such as grips and handles. We
demonstrate that the proposed method can unsupervisedly generate interaction
descriptors that make clusters corresponding to interaction types. And also we
demonstrate that the model can infer possible hand-object interactions
Binding Energy between a Vacancy and an Atom of Third Element and their Effects on the Initial Aging of Aluminium Binary Alloys
Al-Zn, Al-Ag and Al-Cu base ternary alloys were studied by measurement of electrical resistivity. An approximate methods to estimate the binding energy between an atom of a third element and a vacancy was derived. The binding energy between a vacancy and an atom of Cu, Ag, Au, Be, Ca, Cd, In, Si, Ti, Ge, Zr, Sn, Pb or Mn was estimated to be 0.35, 0.28, 0.27, 0.32, 0.39, 0.28, 0.30, 0.33, 0.33, 0.43, >0.38 or <0.23 (±0.05) eV, respectively. The results may be summarized as follows: (I) The ratio of the time required to reach the maximum electrical resistivity in isothermal aging curves of the Al-Zn-X or Al-Ag-X ternary alloy to that in the Al-Zn or Al-Ag binary alloy may be inversely proportional to the ratio of the concentration of vacancies bound to Zn or Ag atoms immediately after quenching in the ternary alloy to that in the binary alloy. And also the ratio of initial rate of clustering for AI-Cu-X ternary alloy to that in the binary alloy may be inversely proportional to the ratio of the concentration of vacancies bound to Cu atoms immediately after quenching in the ternary alloy to that in the binary alloy. It is possible to deduce the binding energy
between an atom of X element and a vacancy using this relations. (2) The effect of the valence of the solute element on the binding energy between an atom of a third element and a vacancy was remarkable. (3) The effect of the radius of an atom of the solute element on the binding energy is also observed, but this effect is smaller than that of the valence
Exact Tachyon Condensation on Noncommutative Torus
We construct the exact noncommutative solutions on tori. This gives an exact
description of tachyon condensation on bosonic D-branes, non-BPS D-branes and
brane-antibrane systems. We obtain various bound states of D-branes after the
tachyon condensation. Our results show that these solutions can be generated by
applying the gauge Morita equivalence between the constant curvature projective
modules. We argue that there is a general framework of the noncommutative
geometry based on the notion of Morita equivalence which underlies this
specific example.Comment: Latex 31 pages, v2: presentation much improved, various points
clarifie
A Study on the Analysis of Land Slide in the Kashio District
A land slide occurred at Kashio Town near Nigawa Railway Station on the Imazu line of the Hankyu Electric Railway Co. on July 13th, 1951. During this landslide the foundation rose. The inclined surface which had kept balance during the last ten and over years slid, though little change was noted in the external condition. The authors investigated the cause of the land slide from the physico-chemical standpoint
Knowledge, Behavior and Attitudes Concerning STI Prevention among Out-of-School Youth in the Philippines
The purpose of this study is to determine the current knowledge, behavior and attitude toward STI prevention among out-of-school youth in the Philippines. Anonymous self-administered questionnaires were distributed separately to 28 out-of-school youth (15 male, 12 female, one unspecified). The mean age of the subjects was 18.0 ± 3.0 years, with an overall age range of 15 to 24 years. The female respondents were younger than the male respondents on average. The out-of-school youth obtained information on STIs mainly from the media, and had fewer information sources than in-school students. Although the out-of-school youth had insufficient knowledge of STIs compared to the students, they were fairly knowledgeable about cervical cancer. They were also more sexually active than the students. The out-of-school youth consulted their parents on STI prevention, but received insufficient knowledge on STI prevention from just this source. It was concluded that out-of-school youth could constitute a high risk demographic for STIs, and health education may be essential to help them protect themselves from STIs
The Current Situation and Issues of Sexual Health Education by School Nurses in Muntinlupa City, Philippines
Cases of sexually transmitted infections (STIs) and teenage pregnancy have been increasing among adolescents in the Philippines. School nurses (SNs) are expected to deliver quality healthcare services and provide relevant sexual health education for students. This study explores the current situation of providing sexual health education by SNs in Muntinlupa City toward health promotion and gains understanding of school health issues in the Philippines. This study employed a cross sectional research design using anonymous self-administered questionnaires, which were distributed to 23 SNs. Then, a semi-structured interview was conducted with them in Muntinlupa City. Among the 23 SNs, 30.4% of them were affiliated to high schools. The most frequent health issues experienced by primary school students were malnutrition, gastrointestinal pain due to hunger, upper respiratory tract infection, and poor hygiene. In high schools, the most frequent health issues were poor mental health, malnutrition and early pregnancy. SNs lacked knowledge on STI, mental health, sex education, safe sex, teenage pregnancy and nutritional care for children. In conclusion, SNs lack knowledge about sex education (early pregnancy and STIs) and mental health. Therefore, seminars should be provided for all SNs to gain adequate knowledge and skills to teach students of all types of school
カフェイン酸フェネチルエステル(CAPE)がラット象牙芽細胞様細胞のVEGF発現と産生に与える影響
Caffeic acid phenethyl ester (CAPE), the main component of propolis, has various biological activities including anti-inflammatory effect and wound healing promotion. Odontoblasts located in the outermost layer of dental pulp play crucial roles such as production of growth factors and formation of hard tissue termed reparative dentin in host defense against dental caries. In this study, we investigated the effects of CAPE on the upregulation of vascular endothelial growth factor (VEGF) and calcification activities of odontoblasts, leading to development of novel therapy for dental pulp inflammation caused by dental caries. CAPE significantly induced mRNA expression and production of VEGF in rat clonal odontoblast-like KN-3 cells cultured in normal medium or osteogenic induction medium. CAPE treatment enhanced nuclear factor-kappa B (NF-κB) transcription factor activation, and furthermore, the specific inhibitor of NF-κB significantly reduced VEGF production. The expression of VEGF receptor- (VEGFR-) 2, not VEGFR-1, was up regulated in KN-3 cells treated with CAPE. In addition, VEGF significantly increased mineralization activity in KN-3 cells. These findings suggest that CAPE might be useful as a novel biological material for the dental pulp conservative therapy
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