The technique of holographic image reconstruction based on photoelectron detection has been applied to the Pb/Si(111)(v~x v~)R30°-/3 phase for a determination of the surface structure. Angle-resolved photoemission from the Pb5d core level shows intensity oscillations as a function of photon energy. These constant-initial-state spectra were taken at various emission angles and Fourier inverted t...

We consider the parallel developments in the economics of agglomeration and the economics of networks. We explore the complementarities between the productivity benefits of agglomeration and those of network linkages, arguing that networks of actors dispersed over space may substitute for agglomerations of actors at a single point. JEL classification: D20, L14, R30

0039-6028/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.susc.2009.04.012 * Corresponding author. Tel.: +1 412 2689517; fax: E-mail address: [email protected] (J.B. Mi Low energy ion scattering spectroscopy (LEISS) has been used to characterize the evolution of ordered structures of S on the Pd(1 1 1) surface during annealing. During exposure of the Pd(1 1 1) surface to 0.7 L H2S a...

AIMS Recurrent arrhythmias after ablation procedures are often caused by recovery of ablated tissue. Robotic catheter manipulation systems increase catheter tip stability which improves energy delivery and could produce more transmural lesions. We tested this assertion using bipolar voltage attenuation as a marker of lesion quality comparing robotic and manual circumferential pulmonary vein abl...

Abstract This study compared estimates of gale-force wind radii (R30 or R34) and storm-force (R50) tropical cyclones (TC) by three agencies—the Korea Meteorological Administration (KMA), the Regional Specialized Center (RSMC) Tokyo, Joint Typhoon Warning (JTWC)—in western North Pacific during 2015–2018 investigated characteristics these estimates. The results showed that KMA’s R30 R50 were smal...

Climate science has confirmed the alteration of hydrological cycle attributed to global warming. This warming tendency affects monsoon precipitation in Pakistan with an unprecedented intensity, causing severe flooding. Therefore, it is inevitable observe recent spring and summer changes extreme throughout Pakistan. The present study examined 8 indices past 50-year period (1971–2020) (stretched ...

The concept of vectorial spin analysis in spin and angle-resolved photoemission is illustrated in this paper. Two prototypical systems, Bi/Ag(111)(sqrt(3)×sqrt(3))R30° and Pb/Ag(111)(sqrt(3)×sqrt(3))R30°, which show a large Rashba-type spin-orbit splitting, were investigated by means of spin and angle-resolved photoemission. The spin polarization vectors of individual bands were determined by a...

Background: Dendritic cells (DCs) are specialized antigen presenting cells that play a pivotal role in bridging innate and adaptive immune responses. Given the scarcity of peripheral blood myeloid dendritic cells (mDCs) investigators have used different model systems for studying DC biology. Monocyte-derived dendritic cells (moDCs) and KG-1 cells are routinely used as mDC models, but a thorough...