The glottal open quotient (OQ) is often associated with the amplitude of the first source harmonic relative to the second (H1*H2*), which is assumed to be one cause of a change in vocal quality along a breathy-to-pressed continuum. The association between OQ and H1*-H2* was investigated in a group of 5 human subjects and also in a computational voice production simulation. The simulation incorp...

efficient use of natural and biological cycles such as nitrogen fixation by legumes may stimulate yield of non-legumes crops in an intercropped system. in order to evaluate spring barley (h) and annual alfalfa (m) intercropping, a study was conducted in the research field of university of tehran (located in karaj) during 2009-2010 growing season. in this research, a randomized complete block de...

For simplicity, we adopt the following rules: n denotes an element of N, X, X1 denote sets, r, p denote real numbers, s, x0, x1, x2 denote real numbers, S, T denote real normed spaces, f , f1, f2 denote partial functions from R to the carrier of S, s1 denotes a sequence of real numbers, and Y denotes a subset of R. The following propositions are true: (1) Let s2 be a sequence of real numbers an...

We prove higher integrability and differentiability results for local minimizers u: R2 ⊃ Ω → RM , M ≥ 1, of the splitting-type energy Ω[h1(|∂1u|) + h2(|∂2u|)] dx. Here h1, h2 are rather general N -functions and no relation between h1 and h2 is required. The methods also apply to local minimizers u: R2 ⊃ Ω → R2 of the functional ∫ Ω[h1(|div u|) + h2(|ε(u)|)] dx so that we can include some varian...

Article history: Received 18 February 2014 Accepted 18 February 2014 Available online 17 March 2014 We provide a correction to the proof of the main result in Crupi and Tentori (2013). © 2014 Elsevier B.V. All rights reserved. Michael Schippers (University of Oldenburg) pointed out to us in personal correspondence an error in the proof of the main result in Crupi and Tentori [1]. The flaw spott...

Lateral mobility studies comparing native and mutated membrane proteins, combined with treatments that alter clathrin lattice structure, can measure membrane protein-coated pit interactions in intact cells (Fire, E., Zwart, D., Roth, M. G., and Henis, Y. I. (1991) J. Cell Biol. 115, 1585-1594). We applied this approach to study the interactions of the H1 and H2 human asialoglycoprotein receptor...

Using specific histamine H1 and H2 receptor antagonists, evidence is presented for the existence of both H1 and H2 receptors on human articular chondrocytes in vitro. Stimulation of the H1 receptor by histamine (range 0.18 to 17.8 mumol/l) significantly increased prostaglandin E (PGE) production, while activation of the histamine H2 receptor increased intracellular cyclic adenosine-5'-monophosp...

the role of endogenous histamine and h1, h2 and h3 central receptors on food intake in broiler chickenswas investigated. for this purpose, a probe was used to manipulate the concentration of endogenoushistamine by intracerebroventricular (icv) injection of thioperamide, an h3 receptor antagonist, and r-α-methylhistamine, an h3 receptor agonist and subsequently the effects of brain histaminergic...

Several RNases H1 cleave the RNA-DNA junction of Okazaki fragment-like RNA-DNA/DNA substrate. This activity, termed 3'-junction ribonuclease (3'-JRNase) activity, is different from the 5'-JRNase activity of RNase H2 that cleaves the 5'-side of the ribonucleotide of the RNA-DNA junction and is required to initiate the ribonucleotide excision repair pathway. To examine whether RNase H1 exhibits 3...