Besov and Triebel-Lizorkin space estimates for fractional diffusion

Yabuta, Kô,zô,Yang, Minsuk Hiroshima University - Department of Mathematics 2018 Hiroshima mathematical journal Vol.48 No.2

<P>We study Besov and Triebel-Lizorkin space estimates for fractional diffusion. We measure the smoothing effect of the fractional heat flow in terms of the Besov and Triebel-Lizorkin scale. These estimates have many applications to various partial differential equations.</P>

Histeridae (Coleoptera) collection of Yeungnam University, with a description of new species and redescription of <i>Niposoma lewisi</i> (Marseul)

Ô,hara, Masahiro,Ahn, Kee-Jeong Elsevier Science B.V. Amsterdam 2018 Journal of Asia-Pacific biodiversity(Online) Vol.11 No.2

<P><B>Abstract</B></P> <P>A total of six species in six genera of the family Histeridae is documented from the collection of Yeungnam University, Daegu, South Korea. <I>Platysoma</I> (<I>Platysoma</I>) <I>jongwooki</I> sp. nov. and <I>Niposoma lewisi</I> Marseul are described and redescribed with illustrations of the diagnostic characters, respectively. Key to Korean species of the tribe Platysomatini is provided.</P>

Operations on 3-dimensional small covers

Springer-Verlag 2010 Chinese annals of mathematics. Ser. B Vol.31 No.3

Challenges of tracking extratropical cyclones in regional climate models

Cô,té,, Hé,lè,ne,Grise, Kevin M.,Son, Seok-Woo,de Elí,a, Ramó,n,Frigon, Anne Springer-Verlag 2015 Climate dynamics Vol.44 No.11

Cohomological non-rigidity of eight-dimensional complex projective towers

Kuroki, Shintarô,Suh, Dong Youp Mathematical Sciences Publishers 2015 Algebraic & geometric topology Vol.15 No.2

토속종교가 베트남 사람들의 생활문화에 끼친 영향

Ngo Van Le 조선대학교 국제문화연구원 2009 국제문화연구 Vol.2 No.1

Mekong delta is the largest delta in Vietnam with an area of 39000㎢, or 12% of the country’s. Therefore, the delta, together with Hochiminh City, has been and will be playing a very crucial role in Vietnam’s cultural-economic development strategies. Yet, while Mekong delta is a fairly new land in comparison with our nation’s long history, it has been a “promise land” or a “land of hope” to many migrants who have migrated to and resided over the delta in their pursuing of wealth and happiness. Many generations of the Vietnamese, side by side with other ethnic peoples, have exploited and protected the region which resulted in several magical achievements during wars against foreign invaders as well as in peace time. Mekong Delta is resided by multi-ethnic peoples. These peoples, who are different in terms of economic development level, social structure and religion, have come to existence over the land at different time points. However, through long history of co-residence, due to cultural exchange and acculturation, among the peoples there have emerged many common cultural features and this process is currently still on progress under proactive influences of modern circumstance. As a result, there have been many religions in the delta; besides world religions such as Buddhism, Christianity, and Islam, there have existed local religions. Obviously, these religions contribute greatly to the cultural diversity of the whole southern part of the country. The Vietnamese is a majority people in the region. The culture of the Vietnamese in Mekong delta has selectively inherited cultural values of Vietnamese tradition. During their residing in the delta, the people has also adopted and created cultural features that are adaptative to natural and social environment of the region. For instance, at the end of 19^(th) century and early 20^(th) century, the Vietnamese in Mekong delta created several religions with ubiquitous local identities. In general, local religions have played very crucial roles in the life of the Vietnamese in the delta; however, their impacts have seldom spread out of the Vietnamese communities. In this paper, by viewing religion as both a social phenomenon and a cultural one, I concentrate on proposing the reasons for the birth of local religions of the Vietnamese in Southern Vietnam at the end of 19^(th) and early 20^(th) century. Also, I want to take a look at these religions’ impacts over cultural life of the people in the region. Assumedly, they were born under specific conditions of the South and only have impacts upon the life of the people. Furthermore, the paper proposes that, on one hand, the Vietnamese in the South have selectively inherited traditional cultural values which have created Vietnamese cultural values as the whole; on the other hand, they have made their own ones within the context of their new living conditions.

Blood cell assisted in vivo Particle Image Velocimetry using the confocal laser scanning microscope.

Choi, Sung Min,Kim, Wi Han,Cô,té,, Daniel,Park, Cheol-Woo,Lee, Ho Optical Society of America 2011 Optics express Vol.19 No.5

<P>We demonstrated the feasibility of blood cell assisted in vivo Particle Image Velocimetry using confocal microscopy. Blood flow of skin vessel in a mouse was non-invasively imaged in vivo using a confocal microscopy. The video-rate confocal microscope was used to monitor the motion of the blood cells in the capillary of a live mouse ear. The home-built confocal laser scanning microscopy allowed us to take images at the acquisition rate of 30 frames per second. The individual blood cells could be distinguished from other cells and the trajectory of the each cell could be followed in the sequential images. The acquired confocal images were used to get the velocity profile of the in vivo blood flow in conjunction with the Particle Image Velocimetry (PIV), without injecting any exogenous nano/micro particles into the mouse. We were able to measure the blood velocity up to a few hundreds µm/sec for various vessels in a live mouse. Because there is no need for the injection of the exogenous tracing particles, it is expected that we could apply the current technology to the study of human capillary blood stream.</P>

Revisiting the redistancing problem using the Hopf–Lax formula

Lee, Byungjoon,Darbon, Jé,rô,me,Osher, Stanley,Kang, Myungjoo Elsevier 2017 Journal of computational physics Vol.330 No.-

<P><B>Abstract</B></P> <P>This article presents a fast new numerical method for redistancing objective functions based on the Hopf–Lax formula . The algorithm suggested here is a special case of the previous work in and an extension that applies the Hopf–Lax formula for computing the signed distance to the front. We propose the split Bregman approach to solve the minimization problem as a solution of the eikonal equation obtained from Hopf–Lax formula. Our redistancing procedure is expected to be generalized and widely applied to many fields such as computational fluid dynamics, the minimal surface problem, and elsewhere.</P>

Revealing timid pseudo-scalars with taus at the LHC

Cacciapaglia, Giacomo,Ferretti, Gabriele,Flacke, Thomas,Serô,dio, Hugo Springer Berlin Heidelberg 2018 The European physical journal. C, Particles and fi Vol.78 No.9

<P>A light pseudo-scalar that is copiously produced at the LHC may still be allowed by present searches. While masses above 65 GeV are effectively covered by di-photon searches, the lower mass window can be tested by a new search for boosted di-tau resonances. We test this strategy on a set of composite Higgs models with top partial compositeness, where most models can be probed with an integrated luminosity below 300 [FORMULA OMISSION].</P>

Variations in benthic foraminiferal assemblages in the Tagus mud belt during the last 5700 years: Implications for Tagus River discharge

Dessandier, Pierre-Antoine,Bonnin, Jé,rô,me,Malaizé,, Bruno,Lambert, Clé,ment,Tjallingii, Rik,Warden, Lisa,Sinninghe Damsté,, Jaap S.,Kim, Jung-Hyun Elsevier 2018 Palaeogeography, palaeoclimatology, palaeoecology Vol.496 No.-

<P><B>Abstract</B></P> <P>We analyzed a 10-m sediment core retrieved at 82 m water depth off the coast of the Tagus River (Western Iberian Margin, Portugal) to investigate a linkage between variations in benthic foraminiferal assemblages and Tagus River discharge over the last 5700 years. Benthic foraminiferal assemblages were studied at high resolution in combination with the stable carbon and oxygen isotopic composition of fossil shells of <I>Nonion scaphum</I>, bulk and molecular organic matter properties (TOC, TN, C/N ratio, δ<SUP>13</SUP>C<SUB>TOC</SUB>, δ<SUP>15</SUP>N<SUB>bulk</SUB>, and BIT index), magnetic susceptibility, and XRF analyses. Three periods of environmental changes were identified: 1) high Tagus River discharge in 5750–2200 calendar year before present (cal yr BP), 2) lower discharge characterized by intense upwelling conditions (2250–1250 cal yr BP), and 3) both intense upwelling and Tagus River discharge (1250 cal yr BP-present). The data reveal alternating intense upwelling periods, as shown by the dominance of <I>Cassidulina carinata</I>, <I>Valvulineria bradyana</I>, or <I>Bulimina marginata</I>, whereas periods of increased river discharge are indicated by increase of <I>N. scaphum</I>, <I>Ammonia beccarii</I>, and <I>Planorbulina mediterranensis</I>. The Tagus River discharge was the strongest during the first period, transporting riverine material further offshore and preventing the establishment of a mud belt on the mid-shelf (around 100 m depth). During the second period, a decrease in Tagus River discharge favored the formation of the Tagus mud belt and strongly influenced the benthic environment by creating an organic matter stock. During the third period, intense upwelling and increased Tagus River discharge were recorded by benthic foraminiferal distribution, with an increase of terrestrial elements present in the mud belt. Furthermore, our results showed that variations in benthic foraminiferal assemblages corresponded to the well-known climatic periods in the study area, such as the Roman Period, the Dark Ages, the Medieval Warm Period, and the Little Ice Age. Our study strongly suggests that benthic foraminiferal assemblages can be used as a bio-indicator to trace the influence of past river discharge.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Benthic foraminifera allow the reconstruction of past Tagus River discharges. </LI> <LI> Three different periods of environmental changes have been identified. </LI> <LI> Major change is due to the Tagus mud belt onset at around 2000 yr BP. </LI> <LI> Upwelling active periods are linked with positive phases of NAO. </LI> <LI> Tagus River discharges are associated with negative phases of NAO. </LI> </UL> </P>