School library and students' achievement: a relationship to go into

This study investigates the relationship between School Library and Students’ achievement on a population sample of 9896 Schools. Many international researches confirmed the importance of the School Library for the Students learning. Recently the IEA PIRLS survey has revealed a positive relationship between the Reading comprehension performance and the size of the School Library collection. In this paper, we verify the relation between the results of INVALSI tests in Italian and Mathematics - on school grades 5,8,10 - with the presence and functioning of the School Library. The information on the School Library comes from the School Questionnaire compiled by the School Principal in the course of the Self-evaluation Report. The analysis confirm a positive relationship in each school grade and in both subjects of investigation

La biblioteca scolastica e il rendimento degli studenti: una relazione da approfondire

This study investigates the relationship between School Library and Students’ achievement on a population sample of 9896 Schools. Many international researches confirmed the importance of the School Library for the Students learning. Recently the IEA PIRLS survey has revealed a positive relationship between the Reading comprehension performance and the size of the School Library collection. In this paper, we verify the relation between the results of INVALSI tests in Italian and Mathematics - on school grades 5,8,10 - with the presence and functioning of the School Library. The information on the School Library comes from the School Questionnaire compiled by the School Principal in the course of the Self-evaluation Report. The analysis confirm a positive relationship in each school grade and in both subjects of investigation

School library and students' achievement: a relationship to go into

This study investigates the relationship between School Library and Students’ achievement on a population sample of 9896 Schools. Many international researches confirmed the importance of the School Library for the Students learning. Recently the IEA PIRLS survey has revealed a positive relationship between the Reading comprehension performance and the size of the School Library collection. In this paper, we verify the relation between the results of INVALSI tests in Italian and Mathematics - on school grades 5,8,10 - with the presence and functioning of the School Library. The information on the School Library comes from the School Questionnaire compiled by the School Principal in the course of the Self-evaluation Report. The analysis confirm a positive relationship in each school grade and in both subjects of investigation

School library and students' achievement: a relationship to go into

This study investigates the relationship between School Library and Students’ achievement on a population sample of 9896 Schools. Many international researches confirmed the importance of the School Library for the Students learning. Recently the IEA PIRLS survey has revealed a positive relationship between the Reading comprehension performance and the size of the School Library collection. In this paper, we verify the relation between the results of INVALSI tests in Italian and Mathematics - on school grades 5,8,10 - with the presence and functioning of the School Library. The information on the School Library comes from the School Questionnaire compiled by the School Principal in the course of the Self-evaluation Report. The analysis confirm a positive relationship in each school grade and in both subjects of investigation

School library and students' achievement: a relationship to go into

This study investigates the relationship between School Library and Students’ achievement on a population sample of 9896 Schools. Many international researches confirmed the importance of the School Library for the Students learning. Recently the IEA PIRLS survey has revealed a positive relationship between the Reading comprehension performance and the size of the School Library collection. In this paper, we verify the relation between the results of INVALSI tests in Italian and Mathematics - on school grades 5,8,10 - with the presence and functioning of the School Library. The information on the School Library comes from the School Questionnaire compiled by the School Principal in the course of the Self-evaluation Report. The analysis confirm a positive relationship in each school grade and in both subjects of investigation

School library and students' achievement: a relationship to go into

This study investigates the relationship between School Library and Students’ achievement on a population sample of 9896 Schools. Many international researches confirmed the importance of the School Library for the Students learning. Recently the IEA PIRLS survey has revealed a positive relationship between the Reading comprehension performance and the size of the School Library collection. In this paper, we verify the relation between the results of INVALSI tests in Italian and Mathematics - on school grades 5,8,10 - with the presence and functioning of the School Library. The information on the School Library comes from the School Questionnaire compiled by the School Principal in the course of the Self-evaluation Report. The analysis confirm a positive relationship in each school grade and in both subjects of investigation

Recent micrometeorological studies of sensible heat flux in the plant-atmosphere system

For many years scientists working in fields related to micrometeorology have used the “Eddy Covariance (EC)” technique to study the transfer of water vapour, carbon dioxide and other greenhouse gases between plants, soils, bodies of water and the atmosphere at the boundary layer. This complex statistical technique uses high frequency measurements of the movement of air in the three dimensions along with the analysis of an air sample taken from the same position at the same time to determine the net exchange, or flux, of carbon dioxide, water vapour and sensible heat. Monitoring stations are typically installed above a canopy, field of crop or grassland, where some of the prerequisites of meaningful readings such as homogeneity of terrain can be attained. Acquisition and maintenance of the instrumentation required are expensive. Therefore, alternative methods are of interest and, if proven reliable, they may also be implemented to overcome routinely problems in direct measurements obtained by EC, such as gap filling. On the basis of recent literature, this paper reports the results of experiments carried out to evaluate the reliability of two alternative methods based on surface renewal analysis to estimate sensible heat flux.The study was carried out under the auspices of the projects: “Innovations and tools for adapting agriculture to climatic change (ISAACC)” grant no. 594/2011 of the Sicilian Region and “Assessment of mass and energy fluxes for the irrigation management of Mediterranean tree crops (PRIN 2008)” grant no. 2008CR84NF by Italian Ministry of Research and University (M.I.U.R.)

Modelling Spray Pressure Effects on Droplet Size Distribution from Agricultural Nozzles

For spray applications, drop size is the most important feature as it affects all aspects of a phytosanitary treatment: biological efficacy, environmental pollution, and operator safety. In turn, drop size distribution depends on nozzle type, liquid properties, and working pressure. In this research, three nozzles were studied under ordinary working conditions and the effect of pressure on drop size distribution was assessed. The nozzles under test, all from Albuz (France), were an orange hollow cone nozzle ATR 80 (European color code), an air induction flat spray nozzle AVI 11003, and an air induction hollow cone nozzle TVI 8002. The ATR 80 and the TVI 8002 nozzles were tested at four pressure values: 0.3, 0.5, 1.0, and 1.5 MPa; the AVI 11003 nozzle was tested at 0.3 and 0.5 MPa. The drop size measurement technique was based on the liquid immersion method by using a custom-made test bench; spray quality parameters were computed by means of suitable functions written in R language. Results showed that an increase in working pressure caused an increase in drop pulverization regardless of the type of nozzle, and drop pulverization was higher for the turbulence nozzle than for the two air induction nozzles. Based on skewness and kurtosis values, the theoretical gamma distribution was the most adapt to fit the experimental data. The scale parameter showed a decreasing trend with the increase in the pressure, a clear index of higher drop pulverization

La biblioteca scolastica e il rendimento degli studenti: una relazione da approfondire

This study investigates the relationship between School Library and Students’ achievement on a population sample of 9896 Schools. Many international researches confirmed the importance of the School Library for the Students learning. Recently the IEA PIRLS survey has revealed a positive relationship between the Reading comprehension performance and the size of the School Library collection. In this paper, we verify the relation between the results of INVALSI tests in Italian and Mathematics - on school grades 5,8,10 - with the presence and functioning of the School Library. The information on the School Library comes from the School Questionnaire compiled by the School Principal in the course of the Self-evaluation Report. The analysis confirm a positive relationship in each school grade and in both subjects of investigation