Under GCH, k(X) _< ~(X) for every homogeneous compactum X. CH implies that a homogeneous compactum of countable ~r-weight is first countable. There is a compact space of countable 7r-weight and uncountable character which is homogeneous under MA+-~CH, but not under CH.

In this work sub- and supercritical CO(2) were used to obtain extracts from two origanum samples, one commercial, and another cultivated under agronomic control. The experiments were performed in the temperature range of 293-313 K and from 100 to 200 bar in pressure, employing around 26 g of origanum samples. Results show that the commercial sample provides a higher yield of extract if compared...

We continue to study one of the classic problems in general topology raised by P. S. Alexandrov: when a Hausdorff space X has continuous bijection (a condensation) onto compactum? concentrate on situation not only but also $$X\setminus Y$$ can be condensed compactum whenever cardinality Y does exceed certain $$\tau$$ .

Abstract This study was performed to investigate the phytochemical profile, and the, in vitro, and, silico, antioxidant antibacterial properties of essential oil (EO) extracted from Origanum compactum . EO screening examined by gas chromatography coupled mass spectrometry. The potential, vitro , assessed using reducing power(FRAP), free 2,2 diphenylpicrylhydrazyl (DPPH) radical scavenging total...

Understanding the chemical cues and gene expressions that mediate herbivore-host-plant and parasite-host interactions can elucidate the ecological costs and benefits accruing to different partners in tight-knit community modules, and may reveal unexpected complexities. We investigated the exploitation of sequential hosts by the phytophagous-predaceous butterfly Maculinea arion, whose larvae ini...

The Moroccan population heavily rely on herbal remedies to control diabetes mellitus. of the central-western region Morocco uses a&nbsp; number anti-diabetic medicinal plants, but there is a lack good&nbsp; ethnobotanical information these plants. Thus, present survey was&nbsp; conducted in Safi and Essaouira provinces inventory main medicinal&nbsp; plants used folk medicine treat Seventy-seven...

Extending a result of R. de la Vega, we prove that an infinite homogeneous compactum has cardinality c if either it is the union of countably many dense or finitely many arbitrary countably tight subspaces. The question if every infinite homogeneous and σ-countably tight compactum has cardinality c remains open. We also show that if an arbitrary product is σ-countably tight then all but finitel...

We prove that for every compactum X with dimZ X ≤ n ≥ 2 there is a cell-like resolution r : Z −→ X from a compactum Z onto X such that dim Z ≤ n and for every integer k and every abelian group G such that dimG X ≤ k ≥ 2 we have dimG Z ≤ k. The latter property implies that for every simply connected CW-complex K such that e − dimX ≤ K we also