26 research outputs found

    Measuring and linking social network knowledge exchange and organisational performance

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    [EN] This paper deals with how to measure social network knowledge exchange and its link with organisational performance. First, it revises both social network analysis and performance measurement techniques, highlighting the main performance elements that may be used. Then, it categorises the main social knowledge network working levels and components from a performance management perspective. It presents the main dimensions of social knowledge networks (actors, knowledge exchange and performance elements) from the performance management point of view. Last but not least, it describes and categorises the main techniques that could be used in order to determine the current and future position inside the social knowledge network (Data Envelopment Analysis). It also emphases the characteristics and pitfalls of the subjective (Analytic Network Processes) and objective techniques (multivariate models), that tend to be used when analyzing the link between social network knowledge exchange and organisational performance.The research reported in this paper is supported by the European Commission for the project “Engaging in Knowledge Networking via an interactive 3D social Supplier Network (KNOWNET)” (FP7-PEOPLE-2013-IAPP 324408)”Rodríguez Rodríguez, R.; Mula, J.; Gómez-Gasquet, P.; Leon, R. (2015). Measuring and linking social network knowledge exchange and organisational performance. InImpact. 8(2):572-583. http://hdl.handle.net/10251/109192S5725838

    Social network analysis: A tool for evaluating and predicting future knowledge flows from an insurance organization

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    [EN] The paper aims to identify the individuals who influence the knowledge sharing processes from an internal social network and to forecast the future knowledge flows that may cross it. Exploratory research is employed, and a four-phase methodology is developed which combines a social network analysis with structural modeling. This is applied to the internal enterprise social network used by a British insurance company. The main results emphasize the most influential groups, their relationships, future knowledge flows, and the connection between the network's heterogeneity and structure, and employees' future knowledge sharing intention. These findings have both theoretical and practical implications. The theory is extended by proving that a social network analysis can be used as a tool for evaluating and predicting future knowledge flows. At the same time, a solution is offered to decision-makers so they will be able to: (i) identify the potential knowledge loss; (ii) determine leaders; (iii) establish who is going to act as a knowledge diffuser, by sharing what they know with their coworkers, and who is going to act as a knowledge repository, by focusing on acquiring increasingly more knowledge; (iv) identify the elements that influence employees' future knowledge sharing intention. (C) 2016 Elsevier Inc. All rights reserved."The research reported in this paper is supported by the European Commission for the project "Engaging in Knowledge Networking via an interactive 3D social Supplier Network (KNOWNET)" (FP7-PEOPLE-2013-IAPP 324408)".Leon, R.; RodrĂ­guez RodrĂ­guez, R.; GĂłmez-Gasquet, P.; Mula, J. (2017). Social network analysis: A tool for evaluating and predicting future knowledge flows from an insurance organization. Technological Forecasting and Social Change. 114:103-118. https://doi.org/10.1016/j.techfore.2016.07.032S10311811

    An Overview of the Polymorphisms of Circadian Genes Associated With Endocrine Cancer

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    A major consequence of the world industrialized lifestyle is the increasing period of unnatural light in environments during the day and artificial lighting at night. This major change disrupts endogenous homeostasis with external circadian cues, which has been associated to higher risk of diseases affecting human health, mainly cancer among others. Circadian disruption promotes tumor development and accelerate its fast progression. The dysregulation mechanisms of circadian genes is greatly affected by the genetic variability of these genes. To date, several core circadian genes, also called circadian clock genes, have been identified, comprising the following: ARNTL, CLOCK, CRY1, CRY2, CSNK1E, NPAS2, NR1D1, NR1D2, PER1, PER2, PER3, RORA, and TIMELESS. The polymorphic variants of these circadian genes might contribute to an individual's risk to cancer. In this short review, we focused on clock circadian clock-related genes, major contributors of the susceptibility to endocrine-dependent cancers through affecting circadian clock, most likely affecting hormonal regulation. We examined polymorphisms affecting breast, prostate and ovarian carcinogenesis, in addition to pancreatic and thyroid cancer. Further study of the genetic composition in circadian clock-controlled tumors will be of great importance by establishing the foundation to discover novel genetic biomarkers for cancer prevention, prognosis and target therapies

    Platinacycles Containing a Primary Amine Platinum(II) Compounds for Treating Cisplatin-Resistant Cancers by Oxidant Therapy

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    Cisplatin is an efficient anticancer drug, but its effects are often lost after several chemotherapy cycles, showing important secondary effects. For these reasons, new anticancer agents, with different coordination properties and mechanisms of action, are needed. Here we describe the reaction of 2-phenylaniline with cis-[PtCl2(dmso)(2)] and sodium acetate to afford a cycloplatinated compound 2 and the synthesis and some biological studies of 3-6 (two neutral and two ionic compounds): [PtCl(C-N)(L)], C-N cycloplatinated 2-phenylaniline with L = PPh3(3) or P(4-FC6H4)(3) (4) and [Pt(C-N)(L-L)]Cl with L-L = Ph2PCH2CH2Ph2(5) or (C6F5)(2)PCH2-CH2(C6F5)(2) (6). Ionic platinacycles 5 and 6 show a greater antiproliferative activity than that of cisplatin in human lung, breast, and colon cancer cell lines (A-549, MDA-MB-231 and MCF-7, and HCT-116), a remarkable result given the fact that they do not show covalent interaction with DNA. 5 and 6 have also been found able to oxidize NADH by a catalytic process prod- oducing H2O2 as ROS. The activity of these complexes to generate ROS seems to be the key factor to explain their potent anticancer activity; it should be noted that platinum(II) complexes showing biocatalytic activity for hydride transfer from NADH have not been described so far. Ionic complex 6 shows low affinity to some target proteins; the presence of perfluoroaromatic rings seems to hinder its interaction with some biomolecules

    Current Advances Research in Nutraceutical Compounds of Legumes, Pseudocereals and Cereals

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    The increase of the Western-type diet and life-style, with high content of highly processed fats, salt and sugar, as well as sedentary life, is directly linked to an increasing incidence of chronic diseases such as diabetes and obesity, cancer, cardiovascular diseases or stroke, and inflammatory-related diseases, which are a great challenge in global health and are usually associated with negative effects of globalization: rapid urbanization, diet and increased sedentary life worldwide. This has brought new interest and increased research into plant-based diets. In this context, the implementation in the diet of legumes, cereals and pseudo-cereals, due to their nutraceutical properties, which is interesting as well as advisable. These foods, in addition of having a high nutritional value themselves, have synergistic properties as part of a balanced diet. For example, most legumes are rich in lysine which is scarce in cereals, and these are rich in sulphur amino acids, such as methionine, while these amino acids are scarce in legumes and are of great importance for the central nervous system development. These foods or part of a food, due to their qualities, and that they provide health benefits can be classified as nutraceuticals. In addition, due to their health benefits beyond nutritional properties, can be classified as functional foods, promoting prevention and treatment for the above mentioned diseases, among others. This double function is due mainly to the proteins and the presence of various secondary metabolites and bioactive compounds in these foods of plant (grain and seed) origin. Last discovered knowledge and research features will be described in the present book chapter

    Riociguat treatment in patients with chronic thromboembolic pulmonary hypertension: Final safety data from the EXPERT registry

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    Objective: The soluble guanylate cyclase stimulator riociguat is approved for the treatment of adult patients with pulmonary arterial hypertension (PAH) and inoperable or persistent/recurrent chronic thromboembolic pulmonary hypertension (CTEPH) following Phase

    Business process improvement and the knowledge flows that cross a private online social network: An insurance supply chain case

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    [EN] This paper analyses how the knowledge shared between employees and suppliers within a private enterprise social network affects process improvement. Data was collected from internal documents, and the internal and external enterprise social networks used by an international insurance company; the average cycle time for handling 8494 claims and 3240 messages posted on the internal and external social networks was analysed. Social network analysis techniques were combined with principal component analysis and structural equation modeling, and the results demonstrate that the knowledge shared within the internal and external social network can explain 35.10% of process improvement variability, while the knowledge shared within the internal social network explains 89.90% of external social network variability. The analysis also demonstrates that: (i) the knowledge shared among employees positively affects process improvement; (ii) the knowledge shared among suppliers negatively affects process improvement; and (iii) the knowledge shared among employees positively affects the knowledge shared among supply chain members. These findings have theoretical and practical implications. They extend the literature in the knowledge management and information management field by offering empirical evidence of how the knowledge shared through an enterprise social network affects business process improvement, using the objective data provided by Yammer. They also provide a strategic tool for managers that will allow them to better understand how they can use the enterprise social network for business processes improvement.The research reported in this paper is supported by the European Commission for the project "Engaging in Knowledge Networking via an interactive 3D social Supplier Network (KNOWNET)" (FP7-PEOPLE-2013-IAPP 324408)".Leon, R.; RodrĂ­guez RodrĂ­guez, R.; GĂłmez-Gasquet, P.; Mula, J. (2020). Business process improvement and the knowledge flows that cross a private online social network: An insurance supply chain case. Information Processing & Management. 57(4):1-16. https://doi.org/10.1016/j.ipm.2020.102237S116574Aboelmaged, M. G. (2018). Knowledge sharing through enterprise social network (ESN) systems: motivational drivers and their impact on employees’ productivity. Journal of Knowledge Management, 22(2), 362-383. doi:10.1108/jkm-05-2017-0188Al Saifi, S. A., Dillon, S., & McQueen, R. (2016). 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    Eosinophils in Colorectal Cancer: Emerging Insights into Anti-Tumoral Mechanisms and Clinical Implications

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    Eosinophils are myeloid effector cells whose main homing is the gastrointestinal tract. There, they take part in type I and type II immune responses. They also contribute to other non-immunological homeostatic functions like mucus production, tissue regeneration, and angiogenesis. In colorectal cancer (CRC), eosinophils locate in the center of the tumor and in the front of invasion and play an anti-tumoral role. They directly kill tumor cells by releasing cytotoxic compounds and eosinophil extracellular traps or indirectly by activating other immune cells via cytokines. As CRC progresses, the number of infiltrating eosinophils decreases. Although this phenomenon is not fully understood, it is known that some changes in the microenvironmental milieu and microbiome can affect eosinophil infiltration. Importantly, a high number of intratumoral eosinophils is a favorable prognostic factor independent from the tumor stage. Moreover, after immunotherapy, responding patients usually display eosinophilia, so eosinophils could be a good biomarker candidate to monitor treatment outcomes. Finally, even though eosinophils seem to play an interesting anti-tumoral role in CRC, much more research is needed to fully understand their interactions in the CRC microenvironment. This review explores the multifaceted roles of eosinophils in colorectal cancer, highlighting their anti-tumoral effects, prognostic significance, and potential as a biomarker for treatment outcomes

    Melatonin as an antioxidant: biochemical mechanisms and pathophysiological implications in humans.

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    This brief resume enumerates the multiple actions of melatonin as an antioxidant. This indoleamine is produced in the vertebrate pineal gland, the retina and possibly some other organs. Additionally, however, it is found in invertebrates, bacteria, unicellular organisms as well as in plants, all of which do not have a pineal gland. Melatonin's functions as an antioxidant include: a), direct free radical scavenging, b), stimulation of antioxidative enzymes, c), increasing the efficiency of mitochondrial oxidative phosphorylation and reducing electron leakage (thereby lowering free radical generation), and 3), augmenting the efficiency of other antioxidants. There may be other functions of melatonin, yet undiscovered, which enhance its ability to protect against molecular damage by oxygen and nitrogen-based toxic reactants. Numerous in vitro and in vivo studies have documented the ability of both physiological and pharmacological concentrations to melatonin to protect against free radical destruction. Furthermore, clinical tests utilizing melatonin have proven highly successful; because of the positive outcomes of these studies, melatonin's use in disease states and processes where free radical damage is involved should be increased
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