The Superiority of Jensen-Suh's Equation to Cruickshank's One for the Anisotropic Thermal Factor

Choo, Geum-Hong,Kim, Moon-Jib,Lee, Jin-Ho,Jensen, William P.,Suh, Il-Hwan 충남대학교 기초과학연구소 2000 忠南科學硏究誌 Vol.27 No.1

Jensen-Suh's equation for the atomic anisotropic thermal factor Exp[-2π^(2)(h^(2)(u_(x)^(2)/α^(2))+k^(2)(u_(y)^(2)/b^(2))+l^(2)(u_(z)^(2)/c^(2)) 2hk(u_(x)/a)(u_(y)/b)+2lk(u_(z)/c)(u_(x)/a)] and Cruckshank's one exp[-2π^(2)(U_(11)h^(2)a^(*2)+U_(22)k^(2)b^(*2)+U_(33)k^(l)c^(*2)+2U_(12)hka^(*)b^(*)+2U_(23)klb^(*)c^(*)+2U_(31)lhc^(*)b^(*)] are found to be identical provided U_(11)=u_(x)^(2) sin^(2)β^(*)sin^(2)γ, U_(22)=u_(y)^(2) sin^(2)γ^(*)sin^(2)α, U_(33)=u_(z)^(2) sin^(2)α^(*)sin^(2)β, U_(12)=u_(x)u-(y)sinαsinβsin^(2)γ^(*), U_(23)=u_(y)u-(z)sinβsinγsin^(2)α^(*), U_(31)=u_(z)u-(x)sin γ sinαsin^(2)β^(*), and it is much easier to derive and understand Jensen-Suh's equation rather than Cruickshank's one.

Translating Integer Factoring into Graph Coloring

Jensen, Tommy Rene Department of Mathematics 2016 Kyungpook mathematical journal Vol.56 No.2

This paper gives for every positive integer n an explicit construction of a graph G with fewer than $15{\log}^2n-{\frac{5}{2}}{\log}n+28$ vertices, such that there exists a nontrivial factoring of n if and only if G is 3-colorable.

The role of aquaporin-5 in cancer cell migration: A potential active participant

Jensen, H.H.,Login, F.H.,Koffman, J.S.,Kwon, T.H.,Nejsum, L.N. Pergamon 2016 The international journal of biochemistry & cell b Vol.79 No.-

Emerging data identifies the water channel aquaporin-5 as a major player in multiple cancers. Over-expression of aquaporin-5 has been associated with increased metastasis and poor prognosis, suggesting that aquaporin-5 may enhance cancer cell migration. This review aims to highlight the current knowledge and hypothesis regarding downstream signaling partners of aquaporin-5 in relation to cancer cell migration. The molecular mechanisms that link aquaporin-5 to cell migration are not completely understood. Aquaporin-5 may promote cell movement by increasing water uptake into the front of the cell allowing local swelling. Aquaporin-5 may also activate extracellular-regulated kinases, increasing proliferation and potentially stimulating the migration machinery. Thus, further studies are warranted to identify the underlying mechanisms and signaling pathways. This will reveal whether aquaporin-5 and downstream effectors could be targets for developing new cancer therapeutics.

The Phase Problem In X-Ray Crystallography

Jensen, William P.,Suh, Il-Hwan 충남대학교 기초과학연구소 1995 忠南科學硏究誌 Vol.22 No.1

In the past half-century the phase problem in x-ray crystallography has received much attention. Many methods have been developed to overcome this problem. These methods include the heavy atom method, isomorphous replacement and anomalous dispersion techniques, and direct methods. Direct methods have played a significant role in the determination of many important "small molecule" structures and will possibly play a significant role in helping to solve "large molecule" structures in the near future.

Splits of circuits

North-Holland Pub. Co ; Elsevier Science Ltd 2010 Discrete mathematics Vol.310 No.21

This paper discusses an attempt at identifying a property of circuits in (nonplanar) graphs resembling the separation property of circuits in planar graphs derived from the Jordan Curve Theorem. If G is a graph and C is a circuit in G, we say that two circuits in G form a split of C if the symmetric difference of their edges sets is equal to the edge set of C, and if they are separated in G by the intersection of their vertex sets. Garcia Moreno and Jensen, A note on semiextensions of stable circuits, Discrete Math. 309 (2009) 4952-4954, asked whether such a split exists for any circuit C whenever G is 3-connected. We observe that if true, this implies a strong form of a version of the Cycle Double-Cover Conjecture suggested in the Ph.D. thesis of Luis Goddyn. The main result of the paper shows that the property holds for Hamilton circuits in cubic graphs.

Housing Welfare Policies in Scandinavia: A Comparative Perspective on a Transition Era

Jensen, Lotte Land and Housing Institute 2013 LHI journal of land, housing, and urban affairs Vol.4 No.2

It is commonplace to refer to the Nordic countries of Sweden, Norway, Denmark, Finland and Iceland as a distinctive and homogenous welfare regime. As far as social housing is concerned, however, the institutional heritage of the respective countries significantly frames the ways in which social housing is understood, regulated and subsidized, and, in turn, how housing regimes respond to the general challenges to the national welfare states. The paper presents a historical institutionalist approach to understanding the diversity of regime responses in the modern era characterized by increasing marketization, welfare criticism and internationalization. The aim is to provide outside readers a theoretically guided empirical insight into Scandinavian social housing policy. The paper first lines up the core of the inbuilt argument of historical institutionalism in housing policy. Secondly, it briefly introduces the distinctive ideal typical features of the five housing regimes, which reveals the first internal distinction between the universal policies of Sweden and Denmark selective policies of Iceland and Finland. The Norwegian case constitutes a transitional model from general to selective during the past quarter of a decade. The third section then concentrates on the differences between Denmark, Sweden and Norway in which social housing is, our was originally, embedded in a universal welfare policy targeting the general level of housing quality for the entire population. Differences stand out, however, between finance, ownership, regulation and governance. The historical institutional argument is, that these differences frame the way in which actors operating on the respective policy arenas can and do respond to challenges. Here, in this section we lose Norway, which de facto has come to operate in a residual manner, due to contemporary effects of the long historical heritage of home ownership. The fourth section then discusses the recent challenges of welfare criticism, internationalization and marketization to the universal models in Denmark and Sweden. Here, it is argued that the institutional differences between the Swedish model of municipal ownership and the Danish model of independent cooperative social housing associations provides different sources of resistance to the prospective dismantlement of social housing as we know it. The fifth section presents the recent Danish reform of the governance model of social housing policy in which the housing associations are conceived of as 'dialogue partners' in the local housing policy, expected to create solutions to, rather than produce problems in social housing areas. The reform testifies to the strategic ability of the Danish social housing associations to employ their historically grounded institutional relative independence of the public system.

Relationship between postabsorptive respiratory exchange ratio and plasma free fatty acid concentrations

Jensen, M.D.,Bajnarek, J.,Lee, S.Y.,Nielsen, S.,Koutsari, C. American Society for Biochemistry and Molecular Bi 2009 Journal of lipid research Vol.50 No.9

MEASURING INFRARED SURFACE BRIGHTNESS FLUCTUATION DISTANCES WITH<i>HST</i>WFC3: CALIBRATION AND ADVICE

Jensen, Joseph B.,Blakeslee, John P.,Gibson, Zachary,Lee, Hyun-chul,Cantiello, Michele,Raimondo, Gabriella,Boyer, Nathan,Cho, Hyejeon IOP Publishing 2015 The Astrophysical journal Vol.808 No.1

<P>We present new calibrations of the near-infrared (near-IR) surface brightness fluctuation (SBF) distance method for the F110W (J(110)) and F160W (H-160) bandpasses of the Wide Field Camera 3 Infrared Channel (WFC3/IR) on the Hubble Space Telescope. The calibrations are based on data for 16 early-type galaxies in the Virgo and Fornax clusters observed with WFC3/IR and are provided as functions of both the optical (g(475)-z(850)) and near-infrared (J(110)-H-160) colors. The scatter about the linear calibration relations for the luminous red galaxies in the sample is approximately 0.10 mag, corresponding to a statistical error of 5% in distance. Our results imply that the distance to any suitably bright elliptical galaxy can be measured with this precision out to about 80 Mpc in a single-orbit observation with WFC3/IR, making this a remarkably powerful instrument for extragalactic distances. The calibration sample also includes much bluer and lower-luminosity galaxies than previously used for IR SBF studies, revealing interesting population differences that cause the calibration scatter to increase for dwarf galaxies. Comparisons with single-burst population models show that as expected, the redder early-type galaxies contain old, metal-rich populations, while the bluer dwarf ellipticals contain a wider range of ages and lower metallicities than their more massive counterparts. Radial SBF gradients reveal that IR color gradients are largely an age effect; the bluer dwarfs typically have their youngest populations near their centers, while the redder giant ellipticals show only weak trends and in the opposite sense. Because of the population variations among bluer galaxies, distance measurements in the near-IR are best limited to red early-type galaxies. We conclude with some practical guidelines for using WFC3/IR to measure reliable SBF distances.</P>

시장거래에 관계하는 소비자 심리

Jensen Paul 한국산림경영인협회 1991 山林經營 Vol.69 No.-

Current Management of Zollinger-Ellison Syndrome

Jensen, Robert. T.,Maton, Paul N.,Gardner, Jerry D. Medical Publications Korea 1987 Medical Progress Vol.9 No.5