280 research outputs found
Mazzanema n. gen. and Mazzanema fortuita n. comb. for Longistriata fortuita Freitas, Lent and Almeida, 1937 (Nematoda, Heligmonellidae), a parasite of the marsh rat Holochilus chacarius (Rodentia, Cricetidae) from Northern Argentina
No full textFil: Digiani, María Celina. División Zoología Invertebrados. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Notarnicola, Juliana. Centro de Estudios en Parasitología y Vectores (CEPAVE). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Paulos, Maria Soledad. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; Argentin
Combining ADMM and tracking over networks for distributed constraint-coupled optimization
No full textIn this paper, we propose a novel distributed algorithm to address constraint-coupled optimization problems in which agents in a network aim at cooperatively minimizing the sum of local objective functions subject to individual constraints and a common, linear coupling constraint. Our optimization scheme embeds a dynamic average consensus protocol in the (parallel) Alternating Direction Method of Multipliers (ADMM) to design a fully distributed algorithm. More precisely, the dual variable update step of the master node in ADMM is now performed locally by the agent, which update their own copy of the dual variable in a consensus-based scheme using a dynamic average mechanism to track the coupling constraint violation. Under convexity, we show convergence of the primal solution estimates to an optimal solution of the constraint-coupled target problem. A numerical example supports the theoretical results
Tracking-ADMM for distributed constraint-coupled optimization
No full textWe consider constraint-coupled optimization problems in which agents of a network aim to cooperatively minimize the sum of local objective functions subject to individual constraints and a common linear coupling constraint. We propose a novel optimization algorithm that embeds a dynamic average consensus protocol in the parallel Alternating Direction Method of Multipliers (ADMM) to design a fully distributed scheme for the considered set-up. The dynamic average mechanism allows agents to track the time-varying coupling constraint violation (at the current solution estimates). The tracked version of the constraint violation is then used to update local dual variables in a consensus-based scheme mimicking a parallel ADMM step. Under convexity, we prove that all limit points of the agents’ primal solution estimates form an optimal solution of the constraint-coupled (primal) problem. The result is proved by means of a Lyapunov-based analysis simultaneously showing consensus of the dual estimates to a dual optimal solution, convergence of the tracking scheme and asymptotic optimality of primal iterates. A numerical study on optimal charging schedule of plug-in electric vehicles corroborates the theoretical results
Mazzanema n. gen. and Mazzanema fortuita n. comb. for Longistriata fortuita Freitas, Lent and Almeida, 1937 (Nematoda, Heligmonellidae), a parasite of the marsh rat Holochilus chacarius (ROdentoa, Cricetidae) from Northern Argentina
No full textThe species described as Longistriata fortuita Freitas, Lent, and Almeida, 1937 is here redescribed from new material collected from the type host, Holochilus chacarius balnearum Thomas, and the type locality, San Martín del Tabacal, Salta, Argentina. Neotypes are designed for the species since the type material deposited by the authors is lost. The original description did not include the synlophe or the female and both are here described. Several characters of the synlophe as the number of ridges (14–19), the ridges continuous and all around body, and the presence of a gradient of size of the ridges allow us to place the species within the Heligmonellidae, Nippostrongylinae. The species possesses a unique combination of characters as the synlophe having a carene together with characters of the caudal bursa as the pattern 1-3-1 and the strong development of the dorsal lobe and ray, which precludes its inclusion in any known genus of Nippostrongylinae. A new genus Mazzanema n. gen. is proposed for it, resulting in the new combination Mazzzanema fortuita n. comb.Fil: Digiani, Maria Celina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Zoologia Invertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Notarnicola, Juliana. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Zoologia Invertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Paulos, Maria Soledad. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Zoologia Invertebrados; Argentin
Inquinamento atmosferico da PM10 nel comune ad alta concentrazione industriale di Taranto
No full textDietary ω-3 polyunsaturated fatty acids inhibit tumor growth in transgenic Apcmin/+ mice, correlating with CB1 receptor up-regulation
No full textMediterranean diet components, such as olive oil and ω-3 polyunsaturated fatty acids (ω-3 PUFAs), can arrest cell growth and promote cell apoptosis. Recently, olive oil has been demonstrated to modulate type-1 cannabinoid (CB1) receptor gene expression in both human colon cancer cells and rat colon. The aim of this study was to investigate a possible link between olive oil and ω-3 PUFAs effects and CB1 receptor expression in both intestinal and adipose tissue of ApcMin/+ mice. To confirm the role for the CB1 receptor as a negative modulator of cell proliferation in human colon cancer, CB1 receptor gene expression was also detected in tumor tissue and in surrounding normal mucosa of patients with colorectal cancer (CRC). Dietary ω-3 PUFAs significantly inhibited intestinal polyp growth in mice, correlating with CB1 receptor gene and protein expression induction. CB1 receptor gene up-regulation was also detected in adipose tissue, suggesting a close communication between cancer cells and the surrounding environment. Tissue CB1 receptor induction was associated with a concurrent inactivation of the Wnt/β-catenin pathway. Moreover, there was a significant reduction in CB1 receptor gene expression levels in cancer tissue compared to normal surrounding mucosa of patients with CRC, confirming that in cancer the “protective” action of the CB1 receptor is lost
Strumenti per gestire le interdipendenze
No full textIl capitolo dà evidenza di quattro casi studio che hanno avuto l’obiettivo di migliorare il presidio delle interdipendenze tra settori, con esperienze dirette di altrettanti gestori aderenti all'Osservatorio: ASP Golgi Redaelli, Istituti Riuniti Airoldi e Muzzi, Gruppo Gheron e Gruppo Koria
Spirituality and Religious Diversity in Nursing: A Scoping Review
No full textSpirituality is a common theme in the field of healthcare research. This study aimed to examine nurses’ perceptions of spirituality in the context of the religious diversity of patients in pluri-religious settings. We performed a scoping review following the methodology on studies conducted between 2010 and 2020. We searched the following databases: CINAHL Plus, PubMed, and PsycINFO. For the identification of grey literature, the OpenGrey database was used. In total, 789 articles were reviewed. Of these, 16 met predetermined inclusion criteria. Two main overarching themes emerged from our inductive analysis: (a) the intertwining of spirituality and spiritual care in diverse religious landscapes and (b) obstacles impeding the inclusion of spiritual care in pluri-religious settings. According to our results, nurses consider that spirituality is interconnected with spiritual care for individuals from different religious backgrounds. Interpretations of spirituality in nursing practice vary widely, with spirituality and religiosity often shaped and influenced by culture and the experience of the professionals. Nurses attribute various meanings to spiritual care, most of which center on respecting personal, interpersonal, and relational aspects of religious and cultural beliefs and practices. Lack of education and specific skills, insufficient time, role ambiguity, and different religious beliefs were identified as hurdles to spiritual care. A poor work environment, a lack of patient privacy, including personal space, and a lack of compassion were also reported as deterrents to spiritual healing. More knowledge and training on different religions and spirituality are required to meet patients’ spiritual needs to better overcome these hurdles
L’innovazione tecnologica
No full textNel capitolo viene descritto il processo innovativo che va dalla nascita dell'idea alla valorizzazione e alla diffusione dell'innovazione tecnologica
SWAAT study: extracorporeal shock waves therapy and arginine supplementation and other nutraceuticals for insertional achilles tendinopathy
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