Digital twins for next-generation mobile networks: Applications and solutions

Digital Twins (DTs) create fully-synchronized virtual representations of real-world systems, which can serve as interactive counterparts for artificial intelligence (AI) and machine learning (ML) algorithms, and hold significant importance for the upcoming 6G mobile networks. In this paper, we argue that DTs can improve all phases of the intelligent networks' workflow, due to their adaptability and scalability properties that would allow them to transparently integrate new AI/ML algorithms faster, more scalably, and more precisely. Our contribution is two-fold: first, we propose three specific application scenarios of DT-enhanced network architectures in the context of 6G. Second, using open-source tools, we implement and evaluate in detail one of them. Our results demonstrate that our DT reflects the characteristics of the physical object, successfully and scalably twinning it, and adapting to changing contextual conditions.The work of University Carlos III of Madrid has been funded by the H2020 Project DAEMON (Grant Agreement No. 101017109), the Horizon Europe Project TrialsNet (Grant Agreement No. 101095871), and by the Spanish Ministry of Economic Affairs and Digital Transformation and the European Union-NextGenerationEU through the UNICO 5G I+D project 6G-CLARION.Publicad

Orchestration Procedures for the Network Intelligence Stratum in 6G Networks

Proceeding of: 2023 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit), 6-9 June 2023, Gothenburg, Sweden. pp.: 347-352.The quest for autonomous mobile networks introduces the need for fully native support for Network Intelligence (NI) algorithms, typically based on Artificial Intelligence tools like Machine Learning, which shall be gathered into a NI stratum. The NI stratum is responsible for the full automation of the NI operation in the network, including the management of the life-cycle of NI algorithms, in a way that is synergic with traditional network management and orchestration framework. In this regard, the NI stratum must accommodate the unique requirements of NI algorithms, which differ from the ones of, e.g., virtual network functions, and thus plays a critical role in the native integration of NI into current network architectures. In this paper, we leverage the recently proposed concept of Network Intelligence Orchestrator (NIO) to (i) define the specific requirements of NI algorithms, and (ii) discuss the procedures that shall be supported by an NIO sitting in the NI stratum to effectively manage NI algorithms. We then (iii) introduce a reference implementation of the NIO defined above using cloud-native open-source tools.This work has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement no. 101017109 “DAEMON”.Publicad

Asenapine in Clinical Practice: Responders Vs Non-responders

ntroduction Asenapine is a second-generation antipsychotic approved in Europe for the treatment of manic or mixed episodes. Objective To describe the clinical features of Asenapine responders and non-responders. Methods A naturalistic, observational study is ongoing in patients treated with Asenapine. We have already recruited 37 manic patients with a lifetime diagnosis of Bipolar I (BDI) or Schizoaffective Disorder referring to our Psychiatric Ward. Patients are assessed with the Young Mania Rating Scale (YMRS) at baseline (T0), and after 1 (T1) and 4 weeks (T2) of treatment. According to YMRS scores, patients are classified as responders and non-responders. Results The preliminary results highlight a significant improvement of the YMRS score from T0 to T2 in most patients. Asenapine seems particularly effective in patients with less severe manic symptoms, and responders are more likely to have lower baseline YMRS score. No correlation has currently emerged between responder status and diagnosis. Non-responders in our sample are females sharing some clinical features: early onset BDI diagnosis, several previous treatments (antipsychotics, mood stabilizers), initial cognitive impairment confirmed with the Mini Mental State Examination, Alzheimer Disease Assessment Scale and neuroimaging. Conclusions Elderly manic patients with neurological impairment and/or dementia may have poorer therapeutic outcomes and poorer response to pharmacological treatment, which may prove effective in reducing agitation but not mania ratings. Diagnosis (BDI or schizoaffective disorder) does not seem to have a significant impact on Asenapine efficacy. The further recruitment and assessment of patients is expected to support the results described above

Asenapine Effects On Peroxidation and Calcium Movements in HL-1 Cells

Introduction Bipolar patients are at higher risk for cardiovascular morbidity and mortality than their counterparts in the general population. In a recent in vitro study, Asenapine, a new antipsychotic for the treatment of mania/mixed mania, was found to keep physiological endothelial function by activation of eNOS-related NO release and to protect endothelial cells against peroxidation by interference with mitochondria, apoptosis and cell survival. Objectives To examine the cardiac protective effects elicited by Asenapine against peroxidation and on the Ca2+ movements. Methods In HL-1 that had undergone oxidative stress by 20 min hydrogen peroxide the effects of 30 min pre-treatment with Asenapine on survival and proliferation will be examined. In Fura-2AM loaded HL-1 we will next analyze the effects of Asenapine on Ca2+ movements and the related involvement of cAMP/PKA and PLC pathways, CaMKII, L and T type Ca2+ channels and 5HT1A receptors. The role of 'capacitative” Ca2+ entry, plasma-membrane Ca2+ pump inhibitor (PMCA) and Na+/Ca2+ exchanger will be analyzed. Changes of membrane potential caused by interference with K+ channels will be examined, as well. Results We expect to find a proliferative and anti-peroxidative effect of Asenapine in HL-1 cells. Asenapine could also affect Ca2+ movements through cAMP/PKA and PLC-dependent signalling and the involvement of 5HT1A receptors. The effects of Asenapine could also be related to changes of plasma membrane by interference with K+ channels and the modulation of PMCA activity and Na+/Ca2+ exchanger. Conclusions We expect to further confirm the protective effect of Asenapine against peroxidative injuries.Implications will be discusse

Outcomes of music therapy interventions in cancer patients. A review of the literature

Background: Effectiveness of music-based interventions (MI) on cancer patients\u2019 anxiety, depression, pain and quality of life (QoL) is a current research theme. MI are highly variable, making it challenging to compare studies. Objective and methods: To summarize the evidence on MI in cancer patients, 40 studies were reviewed following the PRISMA statement. Studies were included if assessing at least one outcome among anxiety, depression, QoL and pain in patients aged 65 18, with an active oncological/onco-haematological diagnosis, participating to any kind of MT, during/after surgery, chemotherapy or radiotherapy. Results: A positive effect of MI on the outcomes measured was supported. Greater reductions of anxiety and depression were observed in breast cancer patients. MI involving patients admitted to a hospital ward were less effective on QoL. Conclusion: The increasing evidence about MI effectiveness, tolerability, feasibility and appreciation, supports the need of MI implementation in Oncology, Radiotherapy and Surgery wards, and promotion of knowledge among health operators

Metabolic effects of overnight continuous infusion of unacylated ghrelin in humans

Objective: To clarify the metabolic effects of an overnight i.v. infusion of unacylated ghrelin (UAG) in humans. UAG exerts relevant metabolic actions, likely mediated by a still unknown ghrelin receptor subtype, including effects on β-cell viability and function, insulin secretion and sensitivity, and glucose and lipid metabolism. Design: We studied the effects of a 16-h infusion (from 2100 to 1300 h) of UAG (1.0 μg/kg per h) or saline in eight normal subjects (age (mean±S.E.M.), 29.6±2.4 years; body mass index (BMI), 22.4±1.7 kg/m2), who were served, at 2100 and 0800 h respectively, with isocaloric balanced dinner and breakfast. Glucose, insulin, and free fatty acid (FFA) levels were measured every 20 min. Results: In comparison with saline, UAG induced significant (P<0.05) changes in glucose, insulin, and FFA profiles. UAG infusion decreased glucose area under the curve (AUC) values by 10% (UAG0-960 min: 79.0±1.7×10 3 mg/dl per min vs saline0-960 min: 87.5±3. 8×103 mg/dl per min) and the AUC at night by 14% (UAG 180-660 min: 28.4±0.5×103 mg/dl per min vs saline180-660 min: 33.2±1.1×103 mg/dl per min). The overall insulin AUC was not significantly modified by UAG infusion; however, insulin AUC observed after meals was significantly increased under the exposure to UAG with respect to saline at either dinner or breakfast. The FFA AUC values were decreased by 52% under the exposure to UAG in comparison with saline (UAG0-960 min: 0.3±0.02×103 mEq/l per min vs saline0-960 min: 0.6±0.05×103 mEq/l per min). Conclusions: Exposure to the i.v. administration of UAG improves glucose metabolism and inhibits lipolysis in healthy volunteers. Thus, in contrast to the diabetogenic action of AG, UAG displays hypoglycemic properties

First-episode psychosis and migration in Italy (PEP-Ita migration): a study in the Italian mental health services

BACKGROUND: It has been frequently reported a higher incidence of psychotic disorders in immigrants than in native populations. There is, however, a lack of knowledge about risk factors which may explain this phenomenon. A better understanding of the causes of psychosis among first-generation migrants is highly needed, particularly in Italy, a country with a recent massive migration. METHODS/DESIGN: The "Italian study on first-episode psychosis and migration (PEP-Ita)" is a prospective observational study over a two-year period (1 January 2012-31 December 2013) which will be carried out in 11 Italian mental health centres. All participating centres will collect data about all new cases of migrants with first-episode psychosis. The general purpose ("core") of the PEP-Ita study is to explore the socio-demographic and clinical characteristics, and the pathways to care of a population of first-episode psychosis migrants in Italy. Secondary aims of the study will be: 1) to understand risk and protective factors for the development of psychotic disorders in migrants; 2) to evaluate the correlations between psychopathology of psychotic disorders in migrants and socio-demographic characteristics, migration history, life experiences; 3) to evaluate the clinical and social outcomes of first-episode psychoses in migrants. DISCUSSION: The results of the PEP-Ita study will allow a better understanding of risk factors for psychosis in first-generation migrants in Italy. Moreover, our results will contribute to the development of prevention programmes for psychosis and to the improvement of early intervention treatments for the migrant population in Italy

The interplay among psychopathology, personal resources, context-related factors and real-life functioning in schizophrenia: stability in relationships after 4 years and differences in network structure between recovered and non-recovered patients

Improving real-life functioning is the main goal of the most advanced integrated treatment programs in people with schizophrenia. The Italian Network for Research on Psychoses previously explored, by using network analysis, the interplay among illness-related variables, personal resources, context-related factors and real-life functioning in a large sample of patients with schizophrenia. The same research network has now completed a 4-year follow-up of the original sample. In the present study, we used network analysis to test whether the pattern of relationships among all variables investigated at baseline was similar at follow-up. In addition, we compared the network structure of patients who were classified as recovered at follow-up versus those who did not recover. Six hundred eighteen subjects recruited at baseline could be assessed in the follow-up study. The network structure did not change significantly from baseline to follow-up, and the overall strength of the connections among variables increased slightly, but not significantly. Functional capacity and everyday life skills had a high betweenness and closeness in the network at follow-up, as they had at baseline, while psychopathological variables remained more peripheral. The network structure and connectivity of non-recovered patients were similar to those observed in the whole sample, but very different from those in recovered subjects, in which we found few connections only. These data strongly suggest that tightly coupled symptoms/dysfunctions tend to maintain each other's activation, contributing to poor outcome in schizophrenia. Early and integrated treatment plans, targeting variables with high centrality, might prevent the emergence of self-reinforcing networks of symptoms and dysfunctions in people with schizophrenia

The interplay among psychopathology, personal resources, context-related factors and real-life functioning in schizophrenia: stability in relationships after 4 years and differences in network structure between recovered and non-recovered patients

Improving real-life functioning is the main goal of the most advanced integrated treatment programs in people with schizophrenia. The Italian Network for Research on Psychoses previously explored, by using network analysis, the interplay among illness-related variables, personal resources, context-related factors and real-life functioning in a large sample of patients with schizophrenia. The same research network has now completed a 4-year follow-up of the original sample. In the present study, we used network analysis to test whether the pattern of relationships among all variables investigated at baseline was similar at follow-up. In addition, we compared the network structure of patients who were classified as recovered at follow-up versus those who did not recover. Six hundred eighteen subjects recruited at baseline could be assessed in the follow-up study. The network structure did not change significantly from baseline to follow-up, and the overall strength of the connections among variables increased slightly, but not significantly. Functional capacity and everyday life skills had a high betweenness and closeness in the network at follow-up, as they had at baseline, while psychopathological variables remained more peripheral. The network structure and connectivity of non-recovered patients were similar to those observed in the whole sample, but very different from those in recovered subjects, in which we found few connections only. These data strongly suggest that tightly coupled symptoms/dysfunctions tend to maintain each other's activation, contributing to poor outcome in schizophrenia. Early and integrated treatment plans, targeting variables with high centrality, might prevent the emergence of self-reinforcing networks of symptoms and dysfunctions in people with schizophrenia