The objective of this study is to obtain comparative results that may help to improve the design and development of courses, seminars and workshops offered by the University of Havana, Cuba, and by ISIDA, Italy. The paper describes the techniques used in a comparative investigation on two groups of managers, and discusses the results obtained in examining: a) the views of the two groups on stat...

the quantitative structure–property relationship (qspr) method is used to develop the correlation between structures of crude oil hydrocarbons (80 compounds) and their boiling point and water solubility. sub-structural molecular fragments (smf) calculated from structure alone were used to represent molecular structures. a subset of the calculated fragments selected using stepwise regression (fo...

With the popularization, in-depth development and application of Internet, microblogs have become a mainstream social network platform. Several studies on networks conducted researches, user influence evaluation is an important research hotspot. Most existing calculate by improving PageRank achieved certain results. However, these ignored fusion users' interest theme similarity information diss...

Quantitative structure-property relationship (QSPR) for estimating the adsorption of aliphatic alcohols onto activated carbon were developed using substructural molecular fragments (SMF) method. The adsorption capacity of activated carbon (gr/100grC) for 150 aliphatic alcohols onto activated carbon (AC) is studied under equilibrium conditions. Forward and backwards stepwise regression variable ...

“Chimiothèque Nationale” (CN) represents a library of synthetic and natural products from various French public laboratories. Recently, experimental screening for S. Aureus antibacterial activity of the part of this library has been performed by Dr J.-M. Paris and collaborators in Ecole des Mines (Paris, France). Here, experimental results of the screening have been used to build classification...

Individual structural alerts often fail to accurately predict chemical toxicity as they tend to overlook the moderating effects of other co-occurring alerts. Features are said to have statistical interaction effects when one changes or modulates the effect of another on the target property. Here we introduce Chemistry-Wide Association Study (CWAS; by analogy with GWAS in genomics) to systematic...

Treatment of hydrogen sulfide (H2S) is important in many industrial processes including oil refineries, natural and biogas processing, coal gasification. The most mature technology for the selective capture H2S based on its absorption by chemical or physical solvents. However, only several compounds are currently used as (co)solvents industry, search new ones an task. experimental screening req...

PURPOSE To compare the efficacy of different surgical strategies for intraocular pressure (IOP) control in Hispanic glaucoma patients with and without visually significant cataracts. DESIGN Comparative retrospective consecutive case series. METHODS The charts of 153 consecutive patients with primary open angle glaucoma who underwent either trabeculectomy alone (n = 51), phacotrabeculectomy ...

Quantitative structure-property relationship (QSPR) for estimating the adsorption of aliphatic alcohols onto activated carbon were developed using substructural molecular fragments (SMF) method. The adsorption capacity of activated carbon (gr/100grC) for 150 aliphatic alcohols onto activated carbon (AC) is studied under equilibrium conditions. Forward and backwards stepwise regression variable ...