Search results for "double"

Enhanced habit-based learning and decreased neurogenesis in the adult hippocampus in a murine model of chronic social stress

2009

Abstract Stress can induce preferential engagement of habit learning mediated by the basal ganglia, relative to learning that involves complex spatial associations contributed by the hippocampal formation. We explored in mice the influence that chronic episodes of social stress exert on the selection of cognitive/spatial vs. habit-based learning strategies. Male mice were exposed to repeated episodes of social confrontation and were categorized as dominant, subordinate or undetermined according to quantitative ethologically relevant parameters of aggression. Mice were then trained in a conditional discrimination task in the T-maze in the presence of allocentric cues until five correct choic…

The doodle of a finitely determined map germ from R2 to R3

AbstractLet f:U⊂R2→R3 be a representative of a finitely determined map germ f:(R2,0)→(R3,0). Consider the curve obtained as the intersection of the image of the mapping f with a sufficiently small sphere Sϵ2 centered at the origin in R3, call this curve the associated doodle of the map germ f. For a large class of map germs the associated doodle has many transversal self-intersections. The topological classification of such map germs is considered from the point of view of the associated doodles.

Double-Blind Study on the Effects of Steroids on Severe Closed Head Injury

1976

The results of a double-blind study on the effects of a low dose and a high dose of dexamethasone on severe closed head injury are presented. The steroid, particularly in high dose, reduced mortality, improved the neurologic course and the final outcome. Timing of steroid administration is of great importance.

855 Double Blind Placebo Controlled Food Challenge Useful to Disconfirm Over Estimated Diagnosis of Cmpa in Children

2010

Background and aims: The incidence of CMPA in infancy seems to be approximately 3%. In Italy diagnosis of CMPA is often over estimated. The double-blind, placebo controlled food challenge(DBPCFC) is widely considered as the “gold standard” for the diagnosis of food allergy. Methods: 14 patients, (12 months-12 yrs) previously diagnosed as having CMPA, underwent our diagnostic algorithm in order to confirm or to exclude diagnosis. Diagnostic algorithm includes: total blood cell count, serum IgE assay, RAST, betalactotest, Prick by prick with fresh milk, chemical examination and eosinophilic cell count of the stools. DBPCFC was performed with extensively hydrolyzed formula (as placebo) VS a la…

Nebulized Beclomethasone In The Treatment Of Childhood Mild Intermittent Asthma With Seasonal Allergic Rhinitis. A Randomized, Double-Blind, Placebo-…

2010

Effest of Molsidomine on t-PA and PAI Activity in Man: A Double Blind, Placebo Controlled Study

1990

RE: Risk of Postpolypectomy Bleeding With Uninterrupted Clopidogrel Therapy in an Industry-Independent, Double-Blind, Randomized, Trial

2019

“Extracorporeal shock wave therapy for lateral epicondylitis—a double blind randomized controlled trial” by C. A. Speed et al., J Orthop Res 2002;20:…

2003

Silver ion chromatography and gas chromatography-mass spectrometry in the structural analysis of cyclic dienoic acids formed in frying oils

1995

The nature of the cyclic monoenoic fatty acids formed from linoleic acid in sunflower oil heated to 275°C has been determined by gas chromatography-mass spectrometry of the picolinyl ester derivatives, before and after hydrogenation and deuteration, and following simplification by silver ion high-performance liquid chromatography. In addition, they were examined by gas chromatography-Fourier transform infrared spectroscopy. Cyclopentene fatty acids (50% of the total monoenes) were formed from C-8 to C-12 and C-10 to C-14 of the original chain in equal amounts with unique stereochemistry. In some isomers the double bond appeared to remain in its original position, and in others it migrated t…

Lanthanum-pyBOX complexes as catalysts for the enantioselective conjugate addition of malonate esters to β,γ-unsaturated α-ketimino esters

2018

[EN] In this paper, we report the application of chiral complexes of La(III) with pyBOX ligands as Lewis acid catalysts in the conjugate addition of malonic esters to N-tosyl imines derived from ß,gamma-unsaturated alfa-keto esters to give the corresponding chiral alfa,ß-dehydroamino esters. pyBOX complexes with La(III), Yb(III), Sc(III), and In(III) triflates were assessed in this reaction but only La(III) showed good activity and enantioselectivity, while Yb(III) provided the expected product with low yield and stereoselectivity, and the Sc(III) and In(III) complexes were completely inactive. The complex of La(OTf)3 with the diphenyl-pyBOX ligand prepared in situ provided the best results…