The gene, encoding the cell adhesion protein E-cadherin, is one of the most frequently mutated genes in gastric cancer and inactivating germline mutations are responsible for the cancer syndrome hereditary diffuse gastric cancer (HDGC). -deficient gastric cancers exhibit high AKT serine/threonine kinase 3 ( expression, but specific drugs against this AKT isoform are not available. We therefore used two publicly available datasets to identify -associated genes which could be used to indirectly target AKT3.
View Article and Find Full Text PDFWe report the design and operation of a surface-emitting surface acoustic wave (SAW) acousto-optical modulator which behaves as a cm-scale linear hologram in response to an applied electronic waveform. The modulator is formed by an optical waveguide, transducer, and out-coupling surface grating on a 1 mm-thick lithium niobate substrate. We demonstrate the ability to load and illuminate a 9-region linear hologram into the modulator's 8 mm-long interaction region using applied waveforms of 280-320 MHz.
View Article and Find Full Text PDFLinear-regime Ar bombardment of Si produces symmetrical ripple structures at ion incidence angles above 45° measured off-normal (Madi 2009 J. Phys.: Condens.
View Article and Find Full Text PDFIn this work we analyze GISAXS measurements of the structure factor of Si surfaces evolving during 1 keV Ar+ ion bombardment. Using newly-developed methods sensitive to the full range of experimentally-available wavenumbers q, we extract the linear amplification rate R(q) governing surface stability over a range of wavenumbers 4-5 times larger than has previously been obtained. Comparing with theoretical models also retaining full wavenumber-dependence, we find an excellent fit of the experimental data over the full range of irradiation angles and wavenumbers.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
October 2016
We propose and experimentally test a method to fabricate patterns of steep, sharp features on surfaces, by exploiting the nonlinear dynamics of uniformly ion-bombarded surfaces. We show via theory, simulation, and experiment that the steepest parts of the surface evolve as one-dimensional curves that move in the normal direction at constant velocity. The curves are a special solution to the nonlinear equations that arises spontaneously whenever the initial patterning on the surface contains slopes larger than a critical value; mathematically they are traveling waves (shocks) that have the special property of being undercompressive.
View Article and Find Full Text PDFJ Am Acad Relig
September 2010
In keeping with the challenge of (African American) historian of religions Charles Long to develop a mode of postcolonial encounter that is a process of mutual hermeneusis, I am proposing in this article to think "race" in terms of "indigenous ritual." At the very least it is an effort to relativize the western scientific paradigm and the universalizing humanities discourses that have nestled close to that paradigm. It is not an attempt to repudiate such an episteme but, rather-to borrow a jazz term-to "swing" it, to put it in antiphonal and improvisational circulation.
View Article and Find Full Text PDFJPEN J Parenter Enteral Nutr
October 1996
Background: Paroxysmal respiratory failure and death occurred in two young adult females with pelvic infections. Autopsy revealed an amorphous material containing calcium obstructing the pulmonary microvasculature of each patient. Both patients received an identical total nutrient admixture (TNA) solution before their deaths.
View Article and Find Full Text PDFWe tested the effect of dietary fat on the lipid composition and hydrolase activity of jejunal brush border membranes in piglets. Eighteen 5-wk-old piglets were divided into three groups and for 4 wk fed either an unsaturated low fat diet (3.2% corn oil), an unsaturated high fat diet (17.
View Article and Find Full Text PDFWe estimated in vivo turnover rates of sucrase-isomaltase and lactase-phlorizin hydrolase in adult rats. Fed animals received a primed continuous infusion of phenylalanine (300 microCi, 150 mumol Phe/100 g of body weight for 30 s, then 7.5 microCi, 3.
View Article and Find Full Text PDFJ Pediatr Gastroenterol Nutr
October 1992
The purpose of this study was to determine whether the developmental decline in lactase specific activity (mumol/min/g protein) in the rat was associated with (a) changes in the relative quantities of immunoisolated precursor and mature forms of the enzyme purified by SDS-PAGE and/or (b) immunohistologic changes in the jejunal mucosa. We studied 10- and 16-day-old suckling rat pups, 22-day-old weaned rat pups, and adult female rats (nongravid, pregnant, and lactating). Lactase activity was three- to fourfold higher in 10-day-old pups than in adult rats.
View Article and Find Full Text PDFFed and fasted (18 h) adult male rats received a primed constant infusion of [3H]leucine for 15 to 180 min. Prosucrase-isomaltase (pro-SI) and sucrase were isolated from mixed jejunal mucosal membranes by immunoprecipitation and separated from one another by polyacrylamide gel electrophoresis under denaturing and reducing conditions. The rate at which pro-SI was processed to sucrase was calculated on the assumption that the steady-state specific radioactivity of leucine in pro-SI defined the pool of amino acids used in the formation of brush border sucrase.
View Article and Find Full Text PDF