in this paper we introduce condition (e?p) a generalization of conditions (e?), (e) and (p) of acts over monoids and will give a classification of monoids by comparing this condition of their (rees factor) acts with other properties. we give also a criterion of cyclic acts to satisfy condition (e?p).

In this paper we introduce condition (E?P) a generalization of Conditions (E?), (E) and (P) of acts over monoids and will give a classification of monoids by comparing this condition of their (Rees factor) acts with other properties. We give also a criterion of cyclic acts to satisfy Condition (E?P).

By combining a renormalization group argument relating the charge e and mass mp of the proton by e 2 lnmp ≈ − 0.1π (in Planck units) with the Carter-Carr-Rees anthropic argument that gives an independent approximate relation mp ∼ e between these two constants, both can be crudely estimated. Using the rough relations with known discrete parameters (e.g., the number of generations), but with unkn...

Rare earth elements (REEs) and Y, or REYs, are commonly used as geochemical proxies for water chemistry, history of the continental crust provenance studies. At continent-ocean interface, estuarine geochemistry REYs is thought to be driven by large-scale removal dissolved fraction. Consequently, contributions river-borne marine budget assumed represent a minor fraction total flux. Here, we repo...

The first collection of a macrofungal agaric species, with morphological features similar to already described Anamika species, has been found in association with animal bones in north Queensland, Australia. This species also shares features with several, commonly occurring and previously described Australian Hebeloma species. An integrated morphological and molecular study has resulted in the ...

Microemulsions are clear, stable, isotropic mixtures of oil, water and surfactant, frequently in combination with a cosurfactant. These systems are currently of interest to the pharmaceutical scientist because of their considerable potential to act as drug delivery vehicles by incorporating a wide range of drug molecules specially BCS Class-II and Class-IV. In order to appreciate the potential ...

This work was aimed to evaluate and compare the performances of the solvents D2EHPA (Di-(2-ethylhexyl) phosphoric acid), Cyanex 272 (bis (2,4,4-trimethylpentyl) phosphinic acid), and a mixture system of D2EHPA and Cyanex272 in the separation of some rare earth elements (REEs) including lanthanum, gadolinium, neodymium, and dyspersym from a nitric acid solution. The results obtained showed that ...

Geochemical studies of rare earth elements (REEs) as well major and trace were conducted on the beach placer sands from Kanyakumari coastal region, a well-known high background natural radiation area (HBNRA). For first time, uranium isotope ratios (234U/238U 235U/238U) determined in study to investigate provenance leaching U sands. Inductively coupled plasma mass spectrometry was used for measu...

Let I be a monomial ideal in a polynomial ring over a field k. If the Rees cone of I is quasi-ideal, we express the normalization of the Rees algebra of I in terms of an Ehrhart ring. We introduce the basis Rees cone of a matroid and study their facets. Then an application to Rees algebras is presented.