Search results for "composition"
showing 10 items of 2675 documents
The relationship between attachment dimensions and perceptions of group relationships over time: An actor–partner interdependence analysis.
2016
A group member’s attachment, anxiety, and avoidance is related to how the group member and the other group members (OGMs) perceive group relationships. In addition, the collective attachment strategies of the OGMs may also be related to how the individual group member and the others perceive the relationships in the group. We extend previous research, using the actor partner interdependence model (APIM), to examine how group members’ and aggregated OGMs’ attachment anxiety and avoid- ance were related to group members’ and OGMs perceptions of positive bonding, positive working, and negative relationships measured early and late in interpersonal growth groups. Three hundred twenty-five Itali…
Sex composition and group climate: A group actor−partner interdependence analysis.
2013
There is a lack of research examining how the proportion of women and men in a group effects both the group member’s perception of group climate and the aggregated perceptions of group climate for the other group members. We adapted the group actor–partner interdependence model (GAPIM; Kenny & Garcia, 2012) to examine how the perception of the group’s climate by a group member and by the other group members are related to the group member’s sex and the sex of the other group members. In addition, we examined how similar the group member’s sex was to the sex of the other group members by analyzing the interaction between the two sex variables. A total of 110 Italian graduate students (96 wom…
Analysis of social performance and board of directors in family firms: evidence from quoted Italian companies
2013
'This is a very business-like book in its approach. It has an impressive global reach in its authorship, focal areas and use of evidence; it hits all the major practical challenges of family firms in a spirit that is fresh and current; and it deals with the cutting-edge themes and issues that are uppermost in the minds of owners, executives, advisors and researchers in the field.' - Nigel Nicholson, London Business School, UK, author, Managing the Human Animal, Family Wars and The 'I' of Leadership. © Kosmas X. Smyrnios, Panikkos Zata Poutziouris and Sanjay Goel 2013. All rights reserved.
Thermoanalytical studies on sodium 1,2-naphthoqoinone oximesolfonates
1991
Abstract Five sodium 1,2-nitrosonaphtholsulfonatea were prepared or purified and their thermal behaviour studied by TG, DTG and DSC. Pyrolysis MS technique was used to identify evolved gases and FTIR to characterize residuals. The water contents depended on preparation and conservation. The decomposition was analysed in three stages which can be formed by one or more steps. The final product was sodium sulfate in air at 530 °C and the mixture of carbon and sodium sulfide at 950 °C in nitrogen. The structure effects on decomposition is discussed.
FTIR Monitoring of Chemical Changes in Softwood During Heating
2000
Abstract A multivariate chemometric method for monitoring the mass loss of Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) by IR spectroscopic determination of chemical changes occurring during the heat treatment (160 - 260 °C, 2 - 8 h) of these wood materials was developed. The method was based on the handling of FTIR data on treated and untreated wood powder samples by the partial least squares (PLS) method. In addition, unknown samples (treated and untreated pine and spruce) were classified into separate groups by the principal component analysis (PCA) method. The chemical changes occurring in the wood samples during heating were also briefly discussed.
Thermochemical behavior of Norway spruce ( Picea abies ) at 180-225 °C
2002
Norway spruce (Picea abies) was heated for 2–8 h in the temperature range 180–225 °C, under a steam atmosphere. The chemical analyses of the treated feedstock samples indicated that during heating (total mass loss 1.5–12.5% of the initial DS) carbohydrates (hemicelluloses and cellulose) were clearly more amenable to various degradation reactions than lignin. In addition, major water-soluble products released from the feedstock material during the treatments were classified into several compound groups and changes in the relative mass portion of these groups were monitored by GC during a separate experiment.
Diffuse and focused carbon dioxide and methane emissions from the Sousaki geothermal system, Greece
2006
[1] We report first data on chemical composition of the gas emitted by the geothermal system of Sousaki, Greece. Gas manifestations display typical geothermal gas composition with CO2 as the main component and CH4 and H2S as minor species. Soil gas composition derives from the mixing of two end-members (atmospheric air and geothermal gas). Soil CO2 fluxes range from<2 to 33,400 g m−2 d−1. The estimated diffuse output of hydrothermal CO2, estimated for an area of 0.015 km2, is about 630 g s−1, while a tentative estimation of CH4 diffuse output gave a value of about 1.15 g s−1. Point sources accounted for lower flux values of ∼26 g s−1 of CO2, ∼0.1 g s−1 of CH4 and ∼0.02 g s−1 of H2S.
Effect of soil management on its radioisotopic composition
2015
Radioactive isotopes, both natural and artificial, present in the environment may be convenient indicators that can be used to study a number of physical and chemical processes and transport of pollutants in the ecosystem.The main aim of the study was to evaluate the impact of the type of soil use on the radioisotopic composition in its surface layers. The radioisotopic compositions of surface soil samples collected in the area of a cement plant abandoned for over 20 years and in the area of the nearby allotments were examined and compared. Calculations were performed using methods designed to study compositional variables.The results confirmed a significant impact of usage on the radioisot…
Factors Affecting Extra-Virgin Olive Oil Composition
2011
ABBREVIATIONS I. THE CONCEPT OF OLIVE OIL QUALITY II. EVOO COMPOSITION AND NUTRITIONAL PROPERTIES III. SOURCES OF VARIABILITY OF EVOO COMPOSITION AND PROPERTIES IV. AGRONOMICAL AND ENVIRONMENTAL FACTORS AFFECTING EVOO COMPOSITION AND QUALITY A. Genotype B. Growing Area and Seasonal Conditions C. Tree Water Status D. Productivity and Alternate Bearing E. Orchard Management 1. Cultivation Method 2. Training System and Pruning 3. Fertilization and Soil Management