616 research outputs found
Late-season Insect Pests of Soybean in Louisiana: Preventive Management and Yield Enhancement (Bulletin #880)
The velvetbean caterpillar and the soybean looper are important pests of soybeans in Louisiana. These late-season soybean insect pests create the need for the continuous development of insecticide programs that are cost effective, maintain profitable yields and conserve natural enemies.https://digitalcommons.lsu.edu/agcenter_bulletins/1020/thumbnail.jp
Low voltage local strain enhanced switching of magnetic tunnel junctions
Strain-controlled modulation of the magnetic switching behavior in magnetic
tunnel junctions (MTJs) could provide the energy efficiency needed to
accelerate the use of MTJs in memory, logic, and neuromorphic computing, as
well as an additional way to tune MTJ properties for these applications.
State-of-the-art CoFeB-MgO based MTJs still require too high voltages to alter
their magnetic switching behavior with strain. In this study, we demonstrate
strain-enhanced field switching of nanoscale MTJs through electric field
control via voltage applied across local gates. The results show that
record-low voltage down to 200 mV can be used to control the switching field of
the MTJ through enhancing the magnetic anisotropy, and that tunnel
magnetoresistance is linearly enhanced with voltage through straining the
crystal structure of the tunnel barrier. These findings underscore the
potential of electric field manipulation and strain engineering as effective
strategies for tailoring the properties and functionality of nanoscale MTJs
Origin of Single Transverse-Spin Asymmetries in High-Energy Collisions
In this paper, we perform the first simultaneous QCD global analysis of data from semi-inclusive deep inelastic scattering, Drell-Yan, +− annihilation into hadron pairs, and proton-proton collisions. Consequently, we are able to extract a universal set of nonperturbative functions that describes the observed asymmetries in these reactions. The outcome of our analysis indicates single transverse-spin asymmetries in high-energy collisions have a common origin. Furthermore, we achieve the first phenomenological agreement with lattice QCD on the up and down quark tensor charges
Discovery and targeting of a noncanonical mechanism of sarcoma resistance to ADI-PEG20 mediated by the microenvironment
PURPOSE: Many cancers lack argininosuccinate synthetase 1 (ASS1), the rate-limiting enzyme of arginine biosynthesis. This deficiency causes arginine auxotrophy, targetable by extracellular arginine-degrading enzymes such as ADI-PEG20. Long-term tumor resistance has thus far been attributed solely to ASS1 reexpression. This study examines the role of ASS1 silencing on tumor growth and initiation and identifies a noncanonical mechanism of resistance, aiming to improve clinical responses to ADI-PEG20.
EXPERIMENTAL DESIGN: Tumor initiation and growth rates were measured for a spontaneous Ass1 knockout (KO) murine sarcoma model. Tumor cell lines were generated, and resistance to arginine deprivation therapy was studied in vitro and in vivo.
RESULTS: Conditional Ass1 KO affected neither tumor initiation nor growth rates in a sarcoma model, contradicting the prevalent idea that ASS1 silencing confers a proliferative advantage. Ass1 KO cells grew robustly through arginine starvation in vivo, while ADI-PEG20 remained completely lethal in vitro, evidence that pointed toward a novel mechanism of resistance mediated by the microenvironment. Coculture with Ass1-competent fibroblasts rescued growth through macropinocytosis of vesicles and/or cell fragments, followed by recycling of protein-bound arginine through autophagy/lysosomal degradation. Inhibition of either macropinocytosis or autophagy/lysosomal degradation abrogated this growth support effect in vitro and in vivo.
CONCLUSIONS: Noncanonical, ASS1-independent tumor resistance to ADI-PEG20 is driven by the microenvironment. This mechanism can be targeted by either the macropinocytosis inhibitor imipramine or the autophagy inhibitor chloroquine. These safe, widely available drugs should be added to current clinical trials to overcome microenvironmental arginine support of tumors and improve patient outcomes
1953: Abilene Christian College Bible Lectures - Full Text
Delivered in the Auditorium of Abilene Christian College,
February, 1953
ABILENE, TEXAS
PRICE: $3.00
firm foundation publishing house
Box 77 Austin 01, Texa
Targeting Medium-Chain Acyl-CoA Dehydrogenase for Glioblastoma
View full abstracthttps://openworks.mdanderson.org/leading-edge/1041/thumbnail.jp
Understanding the role of designers' personal experiences in interaction design practice
Using designers' personal experiences in interaction design practice is often questioned in a predominantly rationalist practice like HCI and professional interaction design. Perhaps for this reason, little work has been conducted to investigate how designers' personal experiences can contribute to technology design. Yet it's undeniable designers have applied their personal experiences to their design practice and also benefited from such experiences. This paper reports on a multiple case study that looks at how interaction designers worked with their personal experiences in three industrial interaction design projects, thus calling for the need to explicitly recognize the legitimacy of using and better support of the use of designers' personal experiences in interaction design practice. In this study, a designer's personal experiences refer to the collections of his/her individual experiences derived from his/her direct observation or past real-life events and activities, as well as his/her interaction with design artifacts and systems whether digital or not
Progress report no. 2
Statement of responsibility on title-page reads: Editors: I.A. Forbes, M.J. Driscoll, N.C. Rasmussen, D.D. Lanning and I. Kaplan; Contributors: S.T. Brewer, G.J. Brown, P.DeLaquil, III, M.J. Driscoll, I.A. Forbes, C.W. Forsberg, E.P. Gyftopoulos, P.L. Hendrick, C.S. Kang, I. Kaplan, J.L. Klucar, D.D. Lanning, T.C. Leung, E.A. Mason, N.R. Ortiz, N.A. Passman, N.C. Rasmussen, I.C. Rickard, V.C. Rogers, G.E. Sullivan, A.T. Supple, and C. P. TzanosIncludes bibliographical referencesProgress report; June 30, 1971U.S. Atomic Energy Commission contract AT(11-1)306
Measurements of branching fraction ratios and CP-asymmetries in suppressed B^- -> D(-> K^+ pi^-)K^- and B^- -> D(-> K^+ pi^-)pi^- decays
We report the first reconstruction in hadron collisions of the suppressed
decays B^- -> D(-> K^+ pi^-)K^- and B^- -> D(-> K^+ pi^-)pi^-, sensitive to the
CKM phase gamma, using data from 7 fb^-1 of integrated luminosity collected by
the CDF II detector at the Tevatron collider. We reconstruct a signal for the
B^- -> D(-> K^+ pi^-)K^- suppressed mode with a significance of 3.2 standard
deviations, and measure the ratios of the suppressed to favored branching
fractions R(K) = [22.0 \pm 8.6(stat)\pm 2.6(syst)]\times 10^-3, R^+(K) =
[42.6\pm 13.7(stat)\pm 2.8(syst)]\times 10^-3, R^-(K)= [3.8\pm 10.3(stat)\pm
2.7(syst]\times 10^-3, as well as the direct CP-violating asymmetry A(K) =
-0.82\pm 0.44(stat)\pm 0.09(syst) of this mode. Corresponding quantities for
B^- -> D(-> K^+ pi^-)pi^- decay are also reported.Comment: 8 pages, 1 figure, accepted by Phys.Rev.D Rapid Communications for
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