We study brane configurations corresponding to D-branes on complex threedimensional orbifolds C/Γ with Γ = ∆(3n) and ∆(6n), nonabelian finite subgroups of SU(3). The brane configurations consist of D3-branes on webs of (p, q) 5-branes of type IIB string theory. The structure of irreducible representations of the groups ∆(3n) and ∆(6n) can be explained from the brane configurations. We also disc...

We show that whenever s > k(k + 1), then for any complex sequence (an)n∈Z, one has ∫ [0,1)k ∣∣∣∣ ∑ |n|6N ane(α1n+ . . .+ αkn ) ∣∣∣∣2s dα Ns−k(k+1)/2( ∑ |n|6N |an| )s . Bounds for the constant in the associated periodic Strichartz inequality from L to l of the conjectured order of magnitude follow, and likewise for the constant in the discrete Fourier restriction problem from l to L ′ , where s′...

BACKGROUND Recently, high proportions (15.6%-98.7%) of intravenous drug users (IDUs) in China were found to be positive for hepatitis C virus (HCV). Yunnan Province is located in southwestern China and borders one of the world's most important opium-producing regions, thus it is an important drug trafficking route to other regions of China. METHODOLOGY/PRINCIPAL FINDINGS Here, we assessed 100...

MicroRNAs (miRs) are important regulators of a wide range of biological processes. Antagomir studies suggest an implication of miR-132 in the functionality of the mammalian circadian clock. miR-212 and miR-132 are tandemly processed from the same transcript and share the same seed region. We found the clock modulator miR-132 and miR-212 to be expressed rhythmically in the central circadian cloc...

Rats fed a semipurified diet supplemented with 3% (w/w) safflower oil [Saf, n-3 fatty acid deficient, high linoleic acid (18:2n-6)] through two generations exhibit decreased correct response ratios in a brightness-discrimination learning test compared with rats fed 3% perilla oil [Per, high alpha-linolenic acid (18:3n-3)]. This is associated with a decreased DHA (22:6n-3)-to-arachidonic acid (2...

Marine oil-derived n-3 fatty acids have been shown to stimulate intestinal Ca absorption in animal studies, but the effects of such fatty acids on Ca absorption in human subjects are relatively unknown. In particular, n-3 fatty acids may be of therapeutic value for some Crohn's disease patients who experience Ca malabsorption. Therefore, the aim of the present study was to investigate the effec...

The relationship between circulating fatty acid (FA) composition and childhood sleep disturbance remains largely unclear. We aimed to investigate the association of erythrocyte membrane FA composition with prevalence of sleep disturbance in Chinese children and adolescents. A cross-sectional survey was conducted among 2337 school-aged children and adolescents who completed a clinical assessment...

OBJECTIVE To evaluate the validity of the Northern Sweden eighty-four-item FFQ to estimate intake of fatty acids relative to 24 h diet recalls (24-HDR) and fatty acids in erythrocyte membranes. DESIGN Participants, randomly recruited from the population-based Västerbotten Intervention Project, answered the eighty-four-item FFQ. During the following year each participant carried out ten 24-HDR...