O regano is an herb that has been cultivated for centuries in the Mediterranean region, although now it can be found in most continents. The name oregano translates roughly into ‘‘mountain joy,’’ which explains in part its association for ancient Greeks and Romans with joy and happiness. Actually there is not simply one ‘‘oregano,’’ but rather several species that may contribute to the oregano ...

Seventeen microbial species including 10 fungal taxa, two yeasts and five bacteria, were isolated from freshly prepared orange, guava and banana juices kept in open bottles at room temperature for 7 days. Eight different essential oils, from local herbs, were tested for their antimicrobial activity against these test organisms. The essential oils of Cymbopogon citratus, Ocimum basilicum and Ori...

Both Origanum vulgare L. subsp. vulgare and O. vulgare subsp. hirtum (Link) Ietsw. occur in the Rhodopes in different habitats. Collection of O. v. subsp. hirtum is forbidden for trade purposes in Bulgaria by law. The aim of this study is to trace the traditional use and collection of both subspecies in the Rhodopes therefore ethnobotanical survey was carried out. O. vulgare was one of the most...

BACKGROUND Escherichia coli occurs naturally in the human gut; however, certain strains that can cause infections, are becoming resistant to antibiotics. Multidrug-resistant E. coli that produce extended-spectrum beta lactamases (ESBLs), such as the CTX-M enzymes, have emerged within the community setting as an important cause of urinary tract infections (UTIs) and bloodstream infections may be...

In this work the Origanum vulgare leaf extract was used to green synthesis of Ag nanoparticles (NPs) supported on Hazelnut shell as an environmentally benign support. The Ag NPs/Hazelnut shell as an effective catalyst was prepared through reduction of Ag+ ions using Origanum vulgare leaf extract as the reducing and capping agent and Ag NPs immobilization on Hazelnut shell surface in ...

An infinite set A in a space X converges to a point p (denoted by A −→ p) if for every neighbourhood U of p we have |A\U | < |A| . We call cS(p,X) = {|A| : A ⊂ X and A −→ p} the convergence spectrum of p in X and cS(X) = ∪{cS(x, X) : x ∈ X} the convergence spectrum of X. The character spectrum of a point p ∈ X is χS(p,X) = {χ(p, Y ) : p is non-isolated in Y ⊂ X} and χS(X) = ∪{χS(x,X) : x ∈ X} i...

In this paper we consider a number of sequence and function spaces that are known to be homeomorphic to the countable product of the linear space σ. The spaces we are interested in have a canonical imbedding in both a topological Hilbert space and a Hilbert cube. It turns out that when we consider these spaces as subsets of a Hilbert cube then there is only one topological type. For imbeddings ...

Let L be finite CW complex. By [L] we denote extension type of L. The following generalization of Michael’s selection theorem is proved: Theorem. Consider [L] ≤ [S]. Let F be a lower semi-continuous map between polish space X and metrizable compactum Y , such that ed(X) ≤ [L], F is equi-LC collection and F (x) ∈ AE([L]) for any x ∈ X. Let A be a closed subset of X such that there exists a conti...

We show that if the space `∞/c0 contains an isometric copy of every function space over a first countable compactum or every function space over a Corson copactum of weight not exceeding the continuum then every subset of R belongs to the σfield generated by sets of the form A1×A2.We prove a similar result about isomorphic rather than isometric embeddings into `∞/c0 in terms of the σ-field of s...