7,272 research outputs found

    On the Csorgo-RĂŠvĂŠsz increments of finite dimensional Gaussian random fields

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    In this paper, we establish some limit theorems on the combined Csorgo-RĂŠvĂŠsz increments with moduli of continuity for finite dimensional Gaussian random fields under mild conditions, via estimating upper bounds of large deviation probabilities on suprema of the finite dimensional Gaussian random fields.Csorgo-RĂŠvĂŠsz increment; Gaussian process; random field; modulus of continuity; quasi-increasing; regularly varying function; large deviation probability.

    An Analysis on Size Suitability of Protective Masks

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    Since a mask which is not suitable for a human face type has a low protection effect, it is necessary to design the shape of the mask reflecting the face shape of the human body in consideration of the size and shape of each part of the face. The masks analyzed in this study are classified into a yellow dust mask(sanitation mask) and a Fine dust protective mask sold in four countries of Korea, China, the US and England. The standard of Korea is KF(Korea Filter, particle blocking function), which is divided into KF80, KF94 and KF99, which are certified by Ministry of Food and Drug Safety. The standard of the US is N95 that is certified by the National Institute for Occupational Safety and Health (NIOSH). The result ofanalyzing the sizes of products is as follows. First, there was a significant difference among the products in the 3 horizontal length items of Nose-Tragion A, Lip-Tragion A, Menton-Tragion B and the 1 vertical length item of chin-menton length. The Nose-Tragion A was the U.S. 12.2cm \u3e England 10.8cm \u3e China 10.7cm \u3e Korea 9.6cm. The result of analyzing fine dust masks in the market showed that they mark the structures, forms and penetration ratio of fine dust, but there is no size standard for each size. Therefore, it is necessary to establish standards of each size for suitable pattern designs for face shapes in each country

    Impact of Emotional Harassment on Firm’s Value

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    The activities and consequences of workplace bullying and harassment have been widely explored in the literature but mainly studied within the scope of individuals or at the team level. Taking a holistic approach, we associate the concept of bullying with firm-level performance as well as stakeholders’ responses in the market. In this paper, we examine whether and how market investors react to the news of corporate harassment by top officials of publicly listed firms in Korea. Using a standard event study methodology and multiple regression analysis with matched sample, we find significantly negative stock price reactions to news of corporate bullying. We also find that the impact is more salient if emotional bullying is involved and discuss both the theoretical and practical implications of these findings

    Malakoplakia of the Kidney Extending to the Descending Colon in a Patient with Secondary Adrenal Insufficiency: A Case Report

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    Malakoplakia is an uncommon but distinctive type of chronic granulomatous inflammation that occurs most commonly in the genitourinary tract, especially the urinary bladder. Most patients have associated conditions characterized by some degree of immunosuppression, as seen in solid-organ transplants, autoimmune diseases requiring steroid use, chemotherapy, chronic systemic diseases, alcohol abuse and poorly controlled diabetes. We report an unusual case of the renal malakoplakia that involved the perirenal space, extending to the descending colon in a 65-year-old Korean woman with secondary adrenal insufficiency and diabetes mellitus

    From Text to Sign Language: Exploiting the Spatial and Motioning Dimension

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    PACLIC 19 / Taipei, taiwan / December 1-3, 200

    The Characteristics of Action Potentials in Primo Vessels and the Effects of Acetylcholine Injection to the Action Potentials

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    In a previous study, we found that Primo vessels generate different action potentials in smooth muscles, but this study compared the pulse shape to distinguish the two tissues. Thus, a more sophisticated extracellular experiment was performed in this study using an acetylcholine injection; we then observed changes in the amplitude, FWHM (full width at half maximum), and period to explore Primo vessel function. A third type of pulse was recorded for Primo vessels. We observed fast depolarizing and repolarizing phases for this pulse. Further, its FWHM was 30 ms between smooth muscles and neurons. Acetylcholine affected only the period. The amplitude and FWHM were consistent after injection. Primo-vessels generated action potentials at twice the frequency after injection. From the results, we speculate that Primo-vessels perform a role in transferring signals in a different manner, which may be relevant for acupuncture treatment
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