In the last decades, especially since the 1990s, there was a gradual rising of educational levels, due to a growing schooling. This paper aims to analyze the propensity toward university enrolment in the Messina area,...In the last decades, especially since the 1990s, there was a gradual rising of educational levels, due to a growing schooling. This paper aims to analyze the propensity toward university enrolment in the Messina area, by means of appropriate statistical methods. In particular, we compared the students of different secondary school institutes in Messina, with reference to the choice of the future university career and other information about the scholastic profit and the scholastic context. Our comparative analysis has been performed through a non-parametric approach, using the Non Parametric Combination （NPC） test based on permutation test. This methodology was chosen for optimal characteristics of which it is characterized.展开更多
In this study, antimicrobial, antioxidant and cytotoxic activities of Spartium junceum L. aromatic water (SJAW), obtained by vacuum process distillation, were investigated. Antimicrobial activity of SJAW was evaluated...In this study, antimicrobial, antioxidant and cytotoxic activities of Spartium junceum L. aromatic water (SJAW), obtained by vacuum process distillation, were investigated. Antimicrobial activity of SJAW was evaluated against fungal organisms, Gram-positive and Gram-negative bacteria using agar-well diffusion method. Moreover, the ability of SJAW to sensitize Staphyloccus aureus to antibiotics was also evaluated. The antioxidant activity was examined by 2,2’-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity assay and the cytotoxic activity of SJAW main components was tested on melanoma RPMI 7932 and normal keratinocytes NCTC 2544 cell lines using the trypan blue method. The preparation did not show antibacterial activity against tested microorganisms and was unable, at tested concentrations/conditions, to sensitize Staphylococcus aureus to antibiotics clindamycin (2 μg) and tetracycline (30 μg). On the contrary SJAW possesses an appreciable antioxidant and cytotoxic activity suggesting its potential use for pharmaceutical applications.展开更多
The media are constantly evolving at a breakneck pace and mainly young people, with their flexibility of mind and their continuous curiosity, can better understand the characteristics and potential of such advances. T...The media are constantly evolving at a breakneck pace and mainly young people, with their flexibility of mind and their continuous curiosity, can better understand the characteristics and potential of such advances. The aim of this paper is to analyze the relationship between teenagers and media, in order to try to better understand the habits and to conduct analysis on social interactions with young people. In order to evaluate the influence of mass media in the life of the young people, the Statisticians of Messina University decided to perform a statistical survey to evaluate the influence of the media in the life of Messina＇s teenagers. A questionnaire entitled ＂Perceptions of the influence exerted by mass media＂ was administered in some schools. From the methodological point of view, three statistical models were estimated in order to formalize the dependence of the mass media influence by the kind of TV programs, the time spent on TV viewing and computer use and the kind of most used social networks. Since the mass media influence is an ordinal variable expressed by four ordered categories （1 = nothing; 2 = low; 3 = average; 4 = high） we used the Cumulative Proportional Odds Model to formalize the dependence by the potential predictors.展开更多
文摘In the last decades, especially since the 1990s, there was a gradual rising of educational levels, due to a growing schooling. This paper aims to analyze the propensity toward university enrolment in the Messina area, by means of appropriate statistical methods. In particular, we compared the students of different secondary school institutes in Messina, with reference to the choice of the future university career and other information about the scholastic profit and the scholastic context. Our comparative analysis has been performed through a non-parametric approach, using the Non Parametric Combination （NPC） test based on permutation test. This methodology was chosen for optimal characteristics of which it is characterized.
文摘In this study, antimicrobial, antioxidant and cytotoxic activities of Spartium junceum L. aromatic water (SJAW), obtained by vacuum process distillation, were investigated. Antimicrobial activity of SJAW was evaluated against fungal organisms, Gram-positive and Gram-negative bacteria using agar-well diffusion method. Moreover, the ability of SJAW to sensitize Staphyloccus aureus to antibiotics was also evaluated. The antioxidant activity was examined by 2,2’-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity assay and the cytotoxic activity of SJAW main components was tested on melanoma RPMI 7932 and normal keratinocytes NCTC 2544 cell lines using the trypan blue method. The preparation did not show antibacterial activity against tested microorganisms and was unable, at tested concentrations/conditions, to sensitize Staphylococcus aureus to antibiotics clindamycin (2 μg) and tetracycline (30 μg). On the contrary SJAW possesses an appreciable antioxidant and cytotoxic activity suggesting its potential use for pharmaceutical applications.
文摘The media are constantly evolving at a breakneck pace and mainly young people, with their flexibility of mind and their continuous curiosity, can better understand the characteristics and potential of such advances. The aim of this paper is to analyze the relationship between teenagers and media, in order to try to better understand the habits and to conduct analysis on social interactions with young people. In order to evaluate the influence of mass media in the life of the young people, the Statisticians of Messina University decided to perform a statistical survey to evaluate the influence of the media in the life of Messina＇s teenagers. A questionnaire entitled ＂Perceptions of the influence exerted by mass media＂ was administered in some schools. From the methodological point of view, three statistical models were estimated in order to formalize the dependence of the mass media influence by the kind of TV programs, the time spent on TV viewing and computer use and the kind of most used social networks. Since the mass media influence is an ordinal variable expressed by four ordered categories （1 = nothing; 2 = low; 3 = average; 4 = high） we used the Cumulative Proportional Odds Model to formalize the dependence by the potential predictors.
