1,449 research outputs found
Organizational Climate as Performance Driver: Health Care Workers’ Perception in a Large Hospital
No full textRecently health care (HC) organizations have increasingly embarked on organizational climate (OC) assessment with the intent to improve their efficiency and the quality of the delivered services. This is important; however, it is even if more crucial to ensure that workers engaged in the evaluation process are aware of the importance of their fruitful engagement in this investigation as well as of its potential benefits. From the management viewpoint, this is crucial to plan and implement management initiatives able to create a great place to work. The purpose of this paper is to shed empirical light on how, in effect, HC workers perceive OC for itself and as a performance driver to assess and manage. The study was carried out through an action research (AR) project, which included the use of both qualitative and quantitative approaches. Key phases of the AR project were some focus groups and a survey. During the focus groups, several methods and approaches were adopted for getting opinions from people and animating discussion. About the survey, a total sample of 560 HC workers was investigated.
The AR project has shown that even if HC workers intuitively conceive OC as an important performance driver, the meaning of the construct is not completely clear. Moreover, a good level of awareness among HC workers about how and why OC can improve individual and organizational performance represents a key issue to address in evaluating and managing OC
Porosity and crystal morphology of heterometallic coordination networks from β-diketonate ligands
No full textPorous coordination polymers (PCPs) or metal-organic-frameworks (MOFs) are considered very promising porous materials that can be exploited in many different technological fields such as gas storage, heterogeneous catalysis and separation of mixtures. In the field of MOF materials, many efforts are devoted to the search of rational synthetic procedures. Among others, a useful synthetic strategy is the so-called Metalloligand (MLs) approach. MLs are coordination complexes containing suitably oriented exo donor-groups that, used in place of organic linkers, can orient the formation of desired homo and heterometallic polymeric architectures [1]. Functionalized chelating ligands suited to obtain useful MLs are -diketonate molecules.[2]
We report the synthesis and the structural characterization of two families of coordination frameworks obtained through the use of different -diketonate ligands with copper salts of several counter-ions. The first family of polymers have a two-dimensional layered structure whereas the members of the second family adopt a three-dimensional flexible framework structure.
We have focused our attention to the correlations between the crystal structure, the dimensionality, the topology and porosity of the networks and the crystal morphologies, as well as to the investigation of the surface phenomena during the crystal growing process. Moreover, we have mapped a continuous set of crystal morphologies by controlling experimental variables such as the solvent system, the metal-ligand molar ratio and the nature of the counter-anion. The aim is to develop a method to tune the crystal habit according to the specific requirement of some important applications.[3]
[1] S. Kitagawa, R. Kitaura, S. Noro Angew. Chem., Int. Ed., 43 (2004) 2334.
[2] L. Carlucci, G. Ciani, S. Maggini, D.M. Proserpio, M. Visconti, Chem. Eur. J, 16 (2010) 12328.
[3] L. Carlucci, G. Ciani, J. M. Garcìa-Ruiz, M. Moret, D. M. Proserpio and S. Rizzato , Cryst. Growth Des., 2009, 9(12), 5024-5034
Exploring Italian olive oil consumers’ purchasing behaviour: Interactions between geographical indication and organic labels
No full textSince the first years of 90s, the European Union established two main quality schemes: geographical indications (GIs) and organic production (OP). Although, these two product categories still represent a small share of food market, quality certification schemes seems to sustain the food consumption pattern during the current economic crisis (ISMEA, 2014; ISMEAQualivita, 2017). There is a vast literature focusing on EU quality schemes applied to many food categories, including extra-virgin olive oil (EVOO) (e.g.: Scarpa & Del Giudice 2004; Aprile et al., 2012; Cicia et al., 2013; Di Vita et al., 2013; Carlucci et al., 2014; Panico et al. 2014; Del Giudice et al., 2015; Chinnici et al., 2016; Roselli et al., 2016; Boncinelli et al., 2017; Cavallo & Piqueras-Fiszman, 2017). However, in most of these studies GIs and OP have been separately analysed, under the assumption of independence. This paper aims to prove if there are some synergies between GIs and OP labels on olive oil products. Differently from previous studies, in this research the two certifications (GIs and OP) for olive oil products are simultaneously analysed while the independence from each other is checked. To reach this objective, the Italian olive oil consumers’ purchasing behaviour has been investigated through a survey involving a national representative sample of primary olive oil purchaser for household members
The impact of design ventilation rates on the indoor air quality in residential buildings: An Italian case study
No full textThe paper investigates the effects on building indoor air quality (IAQ) resulting from the choice of different design ventilation rates. A reference residential building was analysed by means of the multizone modelling software CONTAM, by monitoring the concentration of two pollutants: occupant-generated carbon dioxide (CO2) and total volatile organic compounds (TVOC) from indoor sources. A demand-controlled ventilation strategy based on building occupancy was implemented and users' presence schedules were defined. Specifically, the evolution of indoor pollutant concentrations was investigated when the design ventilation rates, recommended by two IAQ-related standards (the Italian UNI 10339 and the European EN 15251), were implemented through a mechanical ventilation system. Different results regarding the IAQ level were achieved accordingly to the dissimilar ventilation rates. After a statistical analysis on the distributions of CO2 and TVOC concentrations, EN 15251 outcomes showed overall better results of the analysed statistical metrics, i.e. prevalence, sensitivity and accuracy. Indeed, the EN 15251 design airflows led to indoor conditions that were more often classified either in the correct air quality class or in a higher class. Finally, a better alignment between the national and European IAQ standards is recommended, especially in terms of airflows, air quality classes and pollutant limit values
A note on Hindman-Type Theorems for uncountable cardinals
No full textRecent results of Hindman, Leader and Strauss and of Fernández-Bretón and Rinot showed that natural versions of Hindman’s Theorem fail for all uncontable cardinals. On the other hand, Komjáth proved a result in the positive direction, showing that there are arbitrarily large abelian groups satisfying some Hindman-type property. In this note we show how a family of natural Hindman-type theorems for uncountable cardinals can be obtained by adapting some recent results of the author from their original countable setting
Chelidonichthys cuculus. In: Sartor P., Mannini A., Carlucci R., Massaro E., Queirolo S., Sabatini A., Scarcella G.
No full textThe Chelidonichthys cuculus biology is little known inMediterranean Sea and especially in the Italian seas. In Italian seas, reproduction takes place from January to June. In the Adriatic Sea males attain sexual maturity at smaller sizes than females: about 50% of males were mature at 15.0 cm TL and 50% of females were mature at 16.5 cm TL. The size at first sexual maturity for females in the Tyrrhenian is slightly greater of that of other areas. The Maximum length reached by this species is around 45 cm TL. In the Northcentral Adriatic Sea, a maximum length of 30 cm TL was reported. The area showing the greatest persistence of recruits was detected North of Pomo/Jabuka Pit, at a depth range between 100 and 200 m. The data relating to biomass and density evaluation refer to average catch indexes found during MEDITS trawl surveys since 1994 to 2013. The highest densities were observed in the waters of Sardinia, while lower densities were observed in the North-central Adriatic Sea and in the southern Tyrrhenian Sea
Trigloporus lastoviza. In: Sartor P., Mannini A., Carlucci R., Massaro E., Queirolo S., Sabatini A., Scarcella G.
No full textFew data are available on Trigloporus lastoviza biological cycle characteristics in the Italian seas. Trigloporus lastoviza, streaked gurnard, morphology, ecology, diet, biology, growth, sexual maturity and reproduction, recruitment, evaluation, stock assessment. Females reach larher sizes than males in middle-northern Adriatic Sea and in other areas. In the Adriatic Sea, it is reported a size between 11 and 26 cm TL with a main cohort at 16 cm TL. The estimated maximum age is of 5 years for both males and females; 6 and 8 years for males and females respectively in the Greek Aegean Sea; 6 and 5 years in the Turkish Aegean Sea 4 and 5 years in the Tunisian Aegean Sea.
From a comparison between the regression parameters of the length-weigth relationship in different areas, there is evidence of an an increase of b values with latitude, from North to South. In the Italian seas, T. lastoviza spawns in summer. In the Greek Aegean Sea reproduction occurs between winter and early spring. In the Gulf of Tunis, gonadal maturation occurs from September to December and spawning takes place from late December to January for both sexes. In the middle-northern Adriatic Sea, streaked gurnard recruits (<11 cm TL estimated according to Bhattacharya’s method, 1967) ) were found mainly along the North-eastern coast; the area showing the highest persistence in time of recruits was identified off the the Pag Island. A decrease in the number of recruits was observed with time, with a mean value of 4 recruits per km2
Meropenem and ciprofloxacin in complicated gastric surgery for cancer patients: A simple SPE–UHPLC–PDA method for their determination in human plasma
No full textA simple and rapid ultra-high-performance liquid chromatographic (UHPLC) for the simultaneous determination of meropenem and ciprofloxacin in human plasma was developed and validated. All of the analytes were separated in <5 min. A solid-phase extraction method was applied from sample preparation. Analytical separation was performed on a Poroshell SB C-18 column (50 x 2.1 mm, 2.7 mu m particle size) with photodiode array (PDA) detection. Meropenem and ciprofloxacin were determined at wavelengths of 300 and 277 nm, respectively. The mobile phase was a mixture of acetonitrile-10 mm ammonium acetate-methanol in gradient elution. The method has been validated for both drugs in gastric surgery for cancer patients. The method showed good linearity with correlation coefficients, r(2) = 0.994 for the two drugs, as well as high precision (RSD < 10.5% in each case); accuracy ranged from -5.8 to +6.0%. The limit of quantitation of the two drugs was established at 0.02 and 0.01 mu g/mL, respectively. Meropenem, ciprofloxacin and the internal standard were extracted from human plasma with a mean recovery ranging from 92.5 to 98.6%. The method was applied to quantify the drugs dosage in complicated gastric surgery patients
Citharus linguatula. In: Sartor P., Mannini A., Carlucci R., Massaro E., Queirolo S., Sabatini A., Scarcella G., Simoni R. (eds), Sintesi delle conoscenze di biologia, ecologia e pesca delle specie ittiche dei mari italiani / Synthesis of the knowledge on biology, ecology and fishery of the halieutic resources of the Italian seas.
No full textThis species has an oval body and a pointed head with a slightly concave profile above the eye. Eyes are located on the left side of the body and the mouth is curved downward, with a prominent jaw and tip facing down. The upper edge of the preopercule is free and clearly visible. Vomerine teeth are strong, sharp and unequal: biseriate on the front side of each jaw and uniseriate on sides. The species is common throughout the Mediterranean and is preferably found on soft bottoms (with a strong muddy component) down to 300-400 m depths. C. linguatula is a predator; it preferably feeds on small teleosts, decapod crustaceans, mysids, whilst polychaetes and molluscs are secondary preys. The spotted flounder reaches a maximum size of 25 cm TL in the Italian seas and 30 cm TL in its range of distribution . Generally, the most represented sizes from trawl fishing catches are between 10 and 20 cm TL. Currently, the knowledge of period and size at first maturity of the species is scarce; catches of mature females were reported in March in the French Mediterranean or in autumn in the Gulf of Naples and in November-December in the central Adriatic. This species is a by catch of trawl fishery on the continental shelf. There is no assessment on the state of exploitation
of this species, and no minimum size
Low Cost Carriers and Italian Secondary Airports
No full textAbstract.
Air transport deregulation involves the sector of travel itself and the sector concerning slot allocations, airport charges and ground handling. The aim of this work is to analyze the Italian air market liberalization and its implications for secondary airports. After the introduction, the second section analyzes the consequences of liberalization on the use of airport capacity. The third part describes the development of the low cost phenomenon and the role of new carriers in the European Union market. The study ends with a look at the topic of planning airport investments in peripheral areas
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