Results 71 to 80 of about 23,328 (215)

Localized Lna Cooling in Vacuum

, 2006
In the Square Kilometre Array (SKA) telescope [1], [2], the noise temperature of the first LNA must be reduced in order to reduce the necessary active area and the total system costs. Cooling the LNA locally would significantly decrease the noise figure but also the necessary power since not the whole system has to be cooled.
Schreuder, F., Bij de Vaate, J.-G.
openaire   +3 more sources

Wee1 kinase differentially regulates maize CDKA2;1a and CDKB1;1

The FEBS Journal, EarlyView.
In eukaryotes, Wee1 kinase inhibits the kinase activity of CDK/Cyc complexes through phosphorylation of a conserved residue in the CDK moiety. Wee1 is also present in plants, but has been scarcely studied. We have studied maize Wee1 regulation of CDKA/CycD2;2a or CDKB/CycD2;2a complexes.
Mingyar N. López‐Hernández, Estefany D. Guerrero‐Molina, Ulises Martínez‐Ortega, Aurora Lara‐Núñez, Jorge M. Vázquez‐Ramos   +4 more
wiley   +1 more source

Targeting LDL Cholesterol With LNA

Molecular Therapy - Nucleic Acids, 2012
Cardiovascular disease is the number one cause of death in the industrialized world. Much of the morbidity and mortality from heart disease can be linked to elevated low-density lipoprotein (LDL) cholesterol, and one of the key genes that increases LDL cholesterol is Proprotein convertase subtilisin/kexin type 9 (PCSK9).
openaire   +3 more sources

Intratumoral IDH1 mutation status in intrahepatic cholangiocarcinoma is homogeneous

Histopathology, EarlyView.
IDH1 mutations are spatially homogeneous in intrahepatic cholangiocarcinoma. Single‐sample molecular testing is sufficient for clinical decision‐making. Introduction IDH1 mutations occur in approximately 10%–20% of intrahepatic cholangiocarcinoma (iCCA) and constitute an established target for molecularly guided therapy.
Sharon Weidmann, Silvana Ebner, Aayushi Srivastava, Armin Wiegering, Stefan Zeuzem, Peter J. Wild, Maximilian N. Kinzler, Melanie C. Winter, Dirk Walter   +8 more
wiley   +1 more source

RNA activation in insects: From emerging evidence to molecular applications

Insect Molecular Biology, EarlyView.
Canonical RNA activation involves small RNAs interacting with promoter sequences, but there is also evidence of non‐canonical RNAa in eukaryotes. Emerging evidence suggests the presence of RNAa in insects. RNAa can be utilised as a tool for functional genomic studies in insects.
Sassan Asgari
wiley   +1 more source

Serum‐derived microribonucleic acids as potential novel biomarkers for slowly progressive type 1 diabetes mellitus

Journal of Diabetes Investigation, EarlyView.
This study evaluated serum miRNAs as biomarkers in adult patients with SPIDDM. Serum miRNAs were measured at the time of SPIDDM (probable) diagnosis, and miR‐150‐5p was inversely associated with CPI at the last outpatient visit, suggesting its potential utility for predicting subsequent insulin secretory decline.
Hideyuki Okuma, Takahiro Tsutsumi, Masashi Ichijo, Tetsuro Kobayashi, Kyoichiro Tsuchiya   +4 more
wiley   +1 more source

A K-Band RF-MEMS-Enabled Reconfigurable and Multifunctional Low-Noise Amplifier Hybrid Circuit

Active and Passive Electronic Components, 2011
A K-band (18–26.5 GHz) RF-MEMS-enabled reconfigurable and multifunctional dual-path LNA hybrid circuit (optimised for lowest/highest possible noise figure/linearity, resp.) is presented, together with its subcircuit parts.
R. Malmqvist, C. Samuelsson, A. Gustafsson, P. Rantakari, S. Reyaz, T. Vähä-Heikkilä, A. Rydberg, J. Varis, D. Smith, R. Baggen   +9 more
doaj   +1 more source

Low liver conversion rate of α-linolenic to docosahexaenoic acid in awake rats on a high-docosahexaenoate-containing diet

Journal of Lipid Research, 2006
We quantified the rates of incorporation of α-linolenic acid (α-LNA; 18:3n-3) into “stable” lipids (triacylglycerol, phospholipid, cholesteryl ester) and the rate of conversion of α-LNA to docosahexaenoic acid (DHA; 22: 6n-3) in the liver of awake male ...
Miki Igarashi, Kaizong Ma, Lisa Chang, Jane M. Bell, Stanley I. Rapoport, James C. DeMar, Jr.   +5 more
doaj   +1 more source

A Sub‐Microsecond Switch Enabling SWIFT 23Na Imaging at 10.5 T

Magnetic Resonance in Medicine, Volume 96, Issue 4, Page 1991-2003, October 2026.
ABSTRACT PurposeTo enable sodium SWIFT imaging, which is a zero‐echo time imaging technique, at ultra‐high magnetic fields through the development of custom electronics hardware, and to showcase this capability with in vivo imaging results. MethodsThe custom hardware developed consists of a high‐speed optical trigger with 10 ns resolution, an in‐bore ...
Russell L. Lagore, Simon Schmidt, Edward J. Auerbach, Naoharu Kobayashi, Christoph Schildknecht, Steen Moeller, Elnaz Mahmoudi Mahmoudalilou, Štefan Zbýň, Jutta Ellermann, Gregor Adriany, Gregory J. Metzger   +10 more
wiley   +1 more source

Gain-Boosted X-Band GaN Low-Noise Amplifier MMIC With Y/preZ-Embedding Network

IEEE Access
This study improves the performance of an X-band gallium nitride (GaN) low-noise amplifier (LNA) using a gain-boosting embedding network. Using a gain-plane graph, analytical expressions are derived from the Z-parameters of the transistor to determine ...
In Hyuk Song, Seong Hee Han, Youn Sub Noh, Jong Won Lim, Dong Wook Kim   +4 more
doaj   +1 more source