500 research outputs found
La potenza delle tecnologie nelle mani fragili dell\u2019organizzazione: gli strumenti ICT abilitati dalle competenze di disegno organizzativo
Defining cooperative business models for inter-organizational cooperation
Usage of software platforms alongside the business transformation potential of information and communication technology enables cooperation between different companies in both open and networked environments. This is possible when multiple actors cooperate in the delivery of services; each one contributes its own resources, and there is an underlying attractive business model for all of the players involved. This research paper investigates the definition process of a cooperative business model, which involves partners from different countries with different levels of technology, different markets, and different statutory regulations. The aim of this paper is to contribute to both theory and practice by introducing an approach for a cooperative business model definition that can be used in instances where there are conflicting requirements of partners who are willing to cooperate. In the case which is analyzed in this paper, the premature identification of the exploitation alternative scenarios among partners, the adoption of a perspective based on customers\u2019 needs by the means of the business episode concept, and the usage of the business model ontology for the description of the structure of the cooperative business model, have helped the different partners to successfully converge to a common and agreed solution
Cost of a population-based programme of chest x-ray screening for lung cancer.
Background. After the implementation of a population-
based programme of chest x-ray (CXR) screening on
smokers in Varese, Italy, lung cancer (LC) mortality was
significantly reduced. Analysis of the incremental costs
due to this type of screening programme is needed to evaluate its economic impact on the healthcare system.
Methods. In July 1997 a population-based cohort,
consisting of all high-risk smokers (n=5,815) identified
among 60,000 adult residents from the Varese province,
was invited to a LC screening programme (an annual
CXR for five years) in a general practice setting, and was
observed through 2006. Invitees received National Health
Service (NHS) usual care, with the addition of CXRs in
screening participants. At the end of observation, among
the 245 LCs diagnosed in the entire screening-invited cohort
the observed LC deaths were 38 fewer than expected.
To estimate the incremental direct cost due to screening
in the invited cohort for the period July 1997-2006, we
compared the direct cost of screening administration,
CXR screens and LC management in the invited cohort
and in the uninvited and unscreened controls in NHS
usual care setting.
Results. Over the 9.5 years, the total incremental direct
healthcare costs (including screening organization/administration, CXR screens, additional procedures prompted by false-positive tests, overdiagnosed LCs) were estimated to range from \u20ac 607,440 to \u20ac 618,370 (in euros as of 2012), equating to between \u20ac 15,985- \u20ac 16,273 per patient out of the 38 LC deaths averted.
Conclusions. In a general practice setting, the incremental
cost for a CXR screening programme targeted at
all high-risk smokers in a population of 60,000 adults was
estimated to be about \u20ac65,000 per annum, approx. \u20ac16,000
for each LC death averted
Artifact and Artifact Categorization: Comparing Humans and Capuchin Monkeys
International audienceWe aim to show that far-related primates like humans and the capuchin monkeys show interesting correspondences in terms of artifact characterization and categorization. We investigate this issue by using a philosophically-inspired definition of physical artifact which, developed for human artifacts, turns out to be applicable for cross-species comparison. In this approach an artifact is created when an entity is intentionally selected and some capacities attributed to it (often characterizing a purpose). Behavioral studies suggest that this notion of artifact is not specific to the human kind. On the basis of the results of a series of field observations and experiments on wild capuchin monkeys that routinely use stone hammers and anvils, we show that the notions of intentional selection and attributed capacity appear to be at play in capuchins as well. The study also suggests that functional criteria and contextualization play a fundamental role in terms of artifact recognition and categorization in nonhuman primates
Shell evolution of stable N = 50-56 Zr and Mo nuclei with respect to low-lying octupole excitations
For the N = 50-56 zirconium (Z = 40) and molybdenum (Z = 42) isotopes, the evolution of subshells is evaluated by extracting the effective single-particle energies from available particle-transfer data. The extracted systematic evolution of neutron subshells and the systematics of the excitation energy of the octupole phonons provide evidence for type-II shape coexistence in the Zr isotopes. Employing a simplistic approach, the relative effective single-particle energies are used to estimate whether the formation of low-lying octupole-isovector excitations is possible at the proposed energies. The results raise doubts about this assignment
The future of Cybersecurity in Italy: Strategic focus area
This volume has been created as a continuation of the previous one, with the aim of outlining a set of focus areas and actions that the Italian Nation research community considers essential. The book touches many aspects of cyber security, ranging from the definition of the infrastructure and controls needed to organize cyberdefence to the actions and technologies to be developed to be better protected, from the identification of the main technologies to be defended to the proposal of a set of horizontal actions for training, awareness raising, and risk management
Polymorphism at High Molecular Weight Glutenin Subunits and Morphological Diversity of Aegilops geniculata Roth Collected in Algeria
A collection of 35 accessions of the tetraploid wild wheat Aegilops geniculata Roth (MM, UU) sampled in northern Algeria was evaluated for morphological and biochemical variability. Morphological and ecological analyses based on morphological traits and bioclimatic parameters, respectively, were assessed using principal component analysis (PCA). Accessions were differentiated by width characters, namely spike’s width, and a weak relationship between morphological traits and ecological parameters was found. Polymorphism of high molecular weight (HMW) glutenin subunits was carried on by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). Among accessions analyzed, 27 alleles were identified at the two loci Glu-M1 and Glu-U1: resulting in twenty-nine patterns and a nomenclature was proposed. Two alleles at the Glu-U1 locus expressed a new subunit with a slightly slower mobility than subunit 8. These results provide new information regarding the genetic variability of HMW glutenin subunits, as well as their usefulness in cultivated wheat quality improvement
New V. cholerae atypical El Tor variant emerged during the 2006 epidemic outbreak in Angola
<p>Abstract</p> <p>Background</p> <p><it>V. cholerae </it>is the etiological agent of cholera, a major public health concern in most developing countries. Virulence of <it>V. cholerae </it>relies on the powerful cholera toxin, encoded by the CTX prophage. The emergence of new pathogenic variants in the recent years has been mostly associated with new CTX prophage rearrangements.</p> <p>Results</p> <p>In this retrospective study, we show that the epidemic <it>V. cholerae </it>O1 El Tor strain responsible for the 2006 outbreak in Angola is clonally and genetically different from El Tor strains circulating in the 1990s in the same area. Strains from 2006 carry ICE<it>Vch</it>Ang3 of the SXT/R391 family. This ICE is associated with a narrower multidrug resistance profile compared to the one conferred by plasmid p3iANG to strains of the 1990s. The CTX prophage carried by 2006 El Tor strains is characterized by <it>rstR<sup>ET </sup></it>and <it>ctxB<sup>Cla </sup></it>alleles organized in a RS1-RS2-Core array on chromosome I. Interestingly, the newly emerging atypical strain belongs to a clade previously known to comprise only clinical isolates from the Indian subcontinent that also contain the same ICE of the SXT/R391 family.</p> <p>Conclusions</p> <p>Our findings remark the appearance of a novel <it>V. cholerae </it>epidemic variant in Africa with a new CTXΦ arrangement previously described only in the Indian Subcontinent.</p
Creation and Validation of the Spanish Durum Wheat Core Collection.
Spanish wheat (Triticum spp.) landraces have a considerable polymorphism, containing many unique alleles, relative to other collections. The existence of a core collection is a favored approach for breeders to efficiently explore novel variation and enhance the use of germplasm. In this study, the Spanish durum wheat (Triticum turgidum L.) core collection (CC) was created using a population structure–based method, grouping accessions by subspecies and allocating the number of genotypes among populations according to the diversity of simple sequence repeat (SSR) markers. The CC of 94 genotypes was established, which accounted for 17% of the accessions in the entire collection. An alternative core collection (CH), with the same number of genotypes per subspecies and maximizing the coverage of SSR alleles, was assembled with the Core Hunter software. The quality of both core collections was compared with a random core collection and evaluated using geographic, agromorphological, and molecular marker data not previously used in the selection of genotypes. Both core collections had a high genetic representativeness, which validated their sampling strategies. Geographic and agromorphological variation, phenotypic correlations, and gliadin alleles of the original collection were more accurately depicted by the CC. Diversity arrays technology (DArT) markers revealed that the CC included genotypes less similar than the CH. Although more SSR alleles were retained by the CH (94%) than by the CC (91%), the results showed that the CC was better than CH for breeding purposes
The implications of primate behavioral flexibility for sustainable human–primate coexistence in anthropogenic habitats
People are an inescapable aspect of most environments inhabited by nonhuman primates today. Consequently, interest has grown in how primates adjust their behavior to live in anthropogenic habitats. However, our understanding of primate behavioral flexibility and the degree to which it will enable primates to survive alongside people in the long term remains limited. This Special Issue brings together a collection of papers that extend our knowledge of this subject. In this introduction, we first review the literature to identify past and present trends in research and then introduce the contributions to this Special Issue. Our literature review confirms that publications on primate behavior in anthropogenic habitats, including interactions with people, increased markedly since the 2000s. Publications concern a diversity of primates but include only 17% of currently recognized species, with certain primates overrepresented in studies, e.g., chimpanzees and macaques. Primates exhibit behavioral flexibility in anthropogenic habitats in various ways, most commonly documented as dietary adjustments, i.e., incorporation of human foods including agricultural crops and provisioned items, and as differences in activity, ranging, grouping patterns, and social organization, associated with changing anthropogenic factors. Publications are more likely to include information on negative rather than positive or neutral interactions between humans and primates. The contributions to this Special Issue include both empirical research and reviews that examine various aspects of the human–primate interface. Collectively, they show that primate behavior in shared landscapes does not always conflict with human interests, and demonstrate the value of examining behavior from a cost–benefit perspective without making prior assumptions concerning the nature of interactions. Careful interdisciplinary research has the potential to greatly improve our understanding of the complexities of human–primate interactions, and is crucial for identifying appropriate mechanisms to enable sustainable human–primate coexistence in the 21st century and beyond
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