A two-level optimization procedure for determining elastic constants E1, E2, G12, and n12 of laminated composite materials using measured axial and lateral strains of two symmetric angle-ply beams with different fiber angles subjected to three-point-bending testing is presented. In the first-level optimization process, the theoretically and experimentally predicted axial and lateral strains of ...

The modification-dependent restriction endonuclease AspBHI recognizes 5-methylcytosine (5mC) in the double-strand DNA sequence context of (C/T)(C/G)(5mC)N(C/G) (N = any nucleotide) and cleaves the two strands a fixed distance (N12/N16) 3' to the modified cytosine. We determined the crystal structure of the homo-tetrameric AspBHI. Each subunit of the protein comprises two domains: an N-terminal ...

Avermectins are useful anthelmintic antibiotics produced by Streptomyces avermitilis. We demonstrated that a novel AraC-family transcriptional regulator in this species, SAV742, is a global regulator that negatively controls avermectin biosynthesis and cell growth, but positively controls morphological differentiation. Deletion of its gene, sav_742, increased avermectin production and dry cell ...

Resumo: O presente artigo estuda e descreve algumas das cartas que fazem parte do Espólio Osório de Castro (N12) Fundo da Federação Brasileira para o Progresso Feminino (BR RJANRIO Q0) com intuito mapear a formação uma rede intelectual transnacional conta escritora, ativista feminista professora goesa Maria Ermelinda dos Stuarts Gomes (1889-1937) escritora portuguesa Ana (1872-1933). A partir a...

If gamma ray bursts are highly collimated, radiating into only a small fraction of the sky, the energy requirements of each event may be reduced by several (up to 4–6) orders of magnitude, and the event rate increased correspondingly. The large Lorentz factors (Γ ∼ 100) inferred from GRB spectra imply relativistic beaming of the gamma rays into an angle ∼ 1/Γ. We are at present ignorant of whet...

The relevance of examining the physico-chemical and agrochemical indicators soils lies in fact that these properties determine level quality agricultural crops, thus affecting food security country as a whole. In this regard, purpose study is to establish longterm impact different soil tillage fertilisation technologies on profile distribution physicochemical typical chernozem isohumisol soils....

ABSTRACT In late 1940 March, at least five significant solar flares were reported. They likely launched interplanetary coronal mass ejections (ICMEs), and associated with one of the largest storm sudden commencements (SSCs) since 1868, resulting in space weather hazards that would have societal impacts should it occur today. The initial activity is a proton event. Afterwards, another flare was ...

Abstract Background In the IBD centre, Mercy University Hospital( MUH), all patients (Approximately 4000 with IBD) attend outpatient clinic for face-to-face consultations as per prescheduled appointments regardless of disease status. Mismatch between need and access to care. Patients in remission elective appointments, while urgent specialist review may have wait or else clinics which are alrea...

We provide a new lower bound on the number of (≤ k)-edges of a set of n points in the plane in general position. We show that for 0 ≤ k ≤ bn−2 2 c the number of (≤ k)-edges is at least Ek(S) ≥ 3 ( k + 2 2 ) + k ∑ j=b3 c (3j − n + 3), which, for b3 c ≤ k ≤ 0.4864n, improves the previous best lower bound in [11]. As a main consequence, we obtain a new lower bound on the rectilinear crossing numbe...