Projective normality of model varieties and related results

We prove that the multiplication of sections of globally generated line bundles on a model wonderful variety M of simply connected type is always surjective. This follows by a general argument which works for every wonderful variety and reduces the study of the surjectivity for every couple of globally generated line bundles to a finite number of cases. As a consequence, the cone defined by a complete linear system over M or over a closed G-stable subvariety of M is normal. We apply these results to the study of the normality of the compactifications of model varieties in simple projective spaces and of the closures of the spherical nilpotent orbits. Then we focus on a particular case proving two specific conjectures of Adams, Huang and Vogan on an analogue of the model orbit of the group of type E8.Comment: v2: 54 pages, new introduction and several minor changes, added Proposition 9.2. To appear on Representation Theor

Quaternion-based complexity study of human postural sway time series

A multidimensional approach for the study of the center of pressure (CoP) was selected. During the work the dataset was characterized recurring to algorithms taken from Chaotic and Stochastic time series analysis. The effects of the visual and cognitive components were addressed to allow a proper modelization of the data in the complex and quaternion domains

Review and classification of variability analysis techniques with clinical applications

Analysis of patterns of variation of time-series, termed variability analysis, represents a rapidly evolving discipline with increasing applications in different fields of science. In medicine and in particular critical care, efforts have focussed on evaluating the clinical utility of variability. However, the growth and complexity of techniques applicable to this field have made interpretation and understanding of variability more challenging. Our objective is to provide an updated review of variability analysis techniques suitable for clinical applications. We review more than 70 variability techniques, providing for each technique a brief description of the underlying theory and assumptions, together with a summary of clinical applications. We propose a revised classification for the domains of variability techniques, which include statistical, geometric, energetic, informational, and invariant. We discuss the process of calculation, often necessitating a mathematical transform of the time-series. Our aims are to summarize a broad literature, promote a shared vocabulary that would improve the exchange of ideas, and the analyses of the results between different studies. We conclude with challenges for the evolving science of variability analysis

Marcadores ancestrales culturales y genéticos: investigación de apellidos mapuche

Las comunidades aborígenes que habitan las regiones andinas se caracterizan por haber conservado elementos lingüísticos originarios en sus apellidos. Estos han sufrido procesos de “occidentalización”, manteniendo, no obstante, rasgos etnia-específicos. Tal situación permite disponer de un criterio simple para identificar con cierto grado de certeza la ancestralidad de un individuo. Con el objeto de evaluar el grado de correlación entre este marcador cultural y marcadores genéticos hemos llevado a cabo una investigación con individuos varones no relacionados provenientes de las provincias de Río Negro y Chubut (N=136). Los donantes se seleccionaron de acuerdo a la presencia de elementos lingüísticos Mapuche en sus apellidos e individuos con apellidos europeos. Se emplearon tres criterios de clasificación: apellidos, presencia del haplogrupo Q-M3 y presencia de Haplogrupos mitocondriales amerindios (ABCD). Los grupos clasificados de acuerdo con estos criterios fueron analizados mediante 15 STRs autosómicos y 9 Y-STRs. En ambas provincias más del 95% de los individuos portadores de apellidos Mapuche exhibían hgs matri y/o patrilineales amerindios. Por otro lado, en Río Negro y Chubut sólo 18 y 17%, respectivamente, no exhibieron ni apellidos ni marcadores genéticos asociables con ancestros amerindios; en éstos los hgmt más representados fueron H (6.5%), U5 (4.3%) y K (2.8%), seguidos por T (1.4%), V (0.7%), X (0.7%) y M (0.7%). También fue detectado el hg Africano en baja frecuencia (1.4%). Nuestros resultados confirman una correlación estrecha entre apellidos Mapuche y polimorfismos genéticos étnia-específicos.Asociación de Antropología Biológica de la República Argentin

Marcadores ancestrales culturales y genéticos: investigación de apellidos mapuche

Las comunidades aborígenes que habitan las regiones andinas se caracterizan por haber conservado elementos lingüísticos originarios en sus apellidos. Estos han sufrido procesos de “occidentalización”, manteniendo, no obstante, rasgos etnia-específicos. Tal situación permite disponer de un criterio simple para identificar con cierto grado de certeza la ancestralidad de un individuo. Con el objeto de evaluar el grado de correlación entre este marcador cultural y marcadores genéticos hemos llevado a cabo una investigación con individuos varones no relacionados provenientes de las provincias de Río Negro y Chubut (N=136). Los donantes se seleccionaron de acuerdo a la presencia de elementos lingüísticos Mapuche en sus apellidos e individuos con apellidos europeos. Se emplearon tres criterios de clasificación: apellidos, presencia del haplogrupo Q-M3 y presencia de Haplogrupos mitocondriales amerindios (ABCD). Los grupos clasificados de acuerdo con estos criterios fueron analizados mediante 15 STRs autosómicos y 9 Y-STRs. En ambas provincias más del 95% de los individuos portadores de apellidos Mapuche exhibían hgs matri y/o patrilineales amerindios. Por otro lado, en Río Negro y Chubut sólo 18 y 17%, respectivamente, no exhibieron ni apellidos ni marcadores genéticos asociables con ancestros amerindios; en éstos los hgmt más representados fueron H (6.5%), U5 (4.3%) y K (2.8%), seguidos por T (1.4%), V (0.7%), X (0.7%) y M (0.7%). También fue detectado el hg Africano en baja frecuencia (1.4%). Nuestros resultados confirman una correlación estrecha entre apellidos Mapuche y polimorfismos genéticos étnia-específicos.Asociación de Antropología Biológica de la República Argentin

Global DNA Methylation levels analysis in a serie of Hematological, Breast and Colorectal cancer samples from Argentina

Unlike their normal counterparts, tumor cells exhibited highly variable CpG methylation levels in a large proportion of the genome, which can lead to malignant cell transformation through multiple pathways. This prompted us to assess the extent of LINE1 methylation, a surrogate marker of global DNA methylation, of samples derived from controls and cancer patients from Argentina. Preliminary DNA methylation results from selected samples were replicated in a large serie of 146 controls (blood) and various cancer types: 112 oncohematological cancer (HemCa), 70 colorectal cancer (CRC) and 68 breast cancer (BrCa) samples. Further, we evaluated correlation with biological, clinical and demographic features. Blood samples were available in all cases, and for solid tumors paired tumoral/non-tumoral adjacent tissues (T/N) were available too. LINE1 methylation level was analyzed by MS-MLPA method. HemCa cases showed statistically significant higher LINE1 methylation level (p>0.001) compared to controls (mean 0.93 and 0.84, respectively). This variation could be a consequence of chemotherapy. Methylation status in blood (0.86) and N tissue (0.87) from BrCa cases did not differ from controls, while levels in T tissue (0.88) were significantly higher than controls (p<0.05). No differences between N and T tissues were found. CRC cases showed hypomethylation for LINE1 when comparing T (0.81) to blood (0.87) or N tissues (0.88), reaching statistical significance of p<0.05 and p<0.001, respectively. This is in line with reported results. We found a negative correlation between individual age and methylation level in controls (-0.17, p=0.04), and BrCa T tissue (-0.33, p=0.03). Finally, no relevant associations between global methylation and mitochondrial genome variation (copy number and ancestry) were found for controls and HemCa sample sets. LINE1 methylation analysis in samples from lung, ovarian, pancreatic and skin cancers are ongoing.Fil: Cerliani, María Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Multidisciplinario de Biología Celular. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Multidisciplinario de Biología Celular. Universidad Nacional de La Plata. Instituto Multidisciplinario de Biología Celular; ArgentinaFil: Mayordomo, Andrea Constanza. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Multidisciplinario de Biología Celular. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Multidisciplinario de Biología Celular. Universidad Nacional de La Plata. Instituto Multidisciplinario de Biología Celular; ArgentinaFil: Sanchez Dova, Anaclara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Multidisciplinario de Biología Celular. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Multidisciplinario de Biología Celular. Universidad Nacional de La Plata. Instituto Multidisciplinario de Biología Celular; ArgentinaFil: Piñero, Tamara Alejandra. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Medicina Traslacional E Ingenieria Biomedica. - Hospital Italiano. Instituto de Medicina Traslacional E Ingenieria Biomedica. - Instituto Universitario Hospital Italiano de Buenos Aires. Instituto de Medicina Traslacional E Ingenieria Biomedica.; ArgentinaFil: Cajal, Andrea. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Medicina Traslacional E Ingenieria Biomedica. - Hospital Italiano. Instituto de Medicina Traslacional E Ingenieria Biomedica. - Instituto Universitario Hospital Italiano de Buenos Aires. Instituto de Medicina Traslacional E Ingenieria Biomedica.; ArgentinaFil: Jauk Vitali, Federico. Hospital Italiano; ArgentinaFil: Garcia Rivello, Hernan Jorge. Hospital Italiano; ArgentinaFil: Vaccaro, Carlos Alberto. Hospital Italiano; ArgentinaFil: Richard, Silvina Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Multidisciplinario de Biología Celular. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Multidisciplinario de Biología Celular. Universidad Nacional de La Plata. Instituto Multidisciplinario de Biología Celular; ArgentinaFil: Bravi, Claudio Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Multidisciplinario de Biología Celular. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Multidisciplinario de Biología Celular. Universidad Nacional de La Plata. Instituto Multidisciplinario de Biología Celular; ArgentinaFil: Pavicic, Walter Hernan. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Houssay. Instituto de Medicina Traslacional E Ingenieria Biomedica. - Hospital Italiano. Instituto de Medicina Traslacional E Ingenieria Biomedica. - Instituto Universitario Hospital Italiano de Buenos Aires. Instituto de Medicina Traslacional E Ingenieria Biomedica.; ArgentinaReunión Anual de Sociedades de BiocienciaArgentinaSociedad Argentina de Investigación ClínicaSociedad Argentina de Farmacología ExperimentalSociedad Argentina de BiologíaSociedad Argentina de BiologíaAsociación Argentina de NanomedicinasAsociación Argentina de Ciencia y Tecnología de Animales de Laboratori

The PANGEA project: a qualitative analysis for Intimate Partner Violence through anti violence workers during COVID-19 pandemic : Il progetto PANGEA: un’analisi qualitativa dell’Intimate Partner Violence attraverso i lavoratori della rete antiviolenza durante la pandemia da COVID-19

Intimate Partner Violence (IPV) is the most difficult gender-based violence’s form to identify and to stop. The pandemic conditions may have caused an increase of this form but it is difficult to measure. The anti-violence workers could be a valuable and reliable source to obtain informations about women and working conditions during the pandemic. Tuscany region is suitable to conduct this study because has an high rate of IPV and had a long period of lockdown. Thanks to the regional interest it was possible to make a project able to study many aspects of this phenomenon. In the first phase, described in this article, it was possible to understand the major sentiments, emotions, feelings and moods of the anti-violence workers respect of the issues in question.La violenza di genere è un fenomeno molto frequente e l’Intimate Partner Violence (IPV) è la forma più difficile da identificare e contrastare. Le condizioni pandemiche potrebbero aver causato un incremento di questa forma, ma misurarla risulta estremamente complesso. Gli operatori anti violenza sono delle valide ed affidabili risorse per ottenere informazioni riguardo alle condizioni delle donne, ma anche riguardo alle condizioni lavorative durantela pandemia. Considerando che la regione toscana ha un alto tasso di IPV e che in questa regione il lockdown è durato a lungo, è una delle migliori regioni in Italia dove condurre uno studio di questo tipo. Grazie all’interesse mostrato dalla regione è stato possibile iniziare un progetto in grado di valutare molti aspetti di questo fenomeno. Nella prima fase, che sarà descritta in questo articolo, è possibile comprendere i principali sentimenti, emozioni,stati d’animo e atteggiamenti degli operatori anti violenza rispetto alle tematiche in questione

Adalimumab and ABP 501 in the Treatment of a Large Cohort of Patients with Inflammatory Arthritis: A Real Life Retrospective Analysis

The recent introduction of ABP 501, an adalimumab biosimilar, in the treatment of rheumatic diseases was supported by a comprehensive comparability exercise with its originator. On the other hand, observational studies comparing adalimumab and ABP 501 in inflammatory arthritis are still lacking. The main aim of this study is to compare the clinical outcomes of the treatment with adalimumab, both the originator and ABP 501, in a large cohort of patients affected by autoimmune arthritis in a real life setting. We retrospectively analysed the baseline characteristics and the retention rate in a cohort of patients who received at least a course of adalimumab (originator or ABP 501) from January 2003 to December 2020. We stratified the study population according to adalimumab use: naive to original (oADA), naive to ABP 501 (bADA) and switched from original to ABP 501 (sADA). The oADA, bADA and sADA groups included, respectively, 724, 129 and 193 patients. In each group, the majority of patients had a diagnosis of rheumatoid arthritis. The total observation period was 9805.6 patient-months. The 18-month retentions rate in oADA, bADA and sADA was, respectively, 81.5%, 84.0% and 88.0% (p &gt; 0.05). The factors influencing the adalimumab retention rate were an axial spondylarthritis diagnosis (Hazard Ratio (HR) 0.70; p = 0.04), switch from oADA to ABP 501 (HR 0.53; p = 0.02) and year of prescription (HR 1.04; p = 0.04). In this retrospective study, patients naive to the adalimumab originator and its biosimilar ABP 501 showed the same retention rate. Patients switching from the originator to biosimilar had a higher retention rate, even though not statistically significant, when compared to naive

Predictors of DAPSA Response in Psoriatic Arthritis Patients Treated with Apremilast in a Retrospective Observational Multi-Centric Study (2023-02-07)

Background: To date, only a few real-world-setting studies evaluated apremilast effectiveness in psoriatic arthritis (PsA). The aims of this retrospective observational study are to report long-term Disease Activity Index for Psoriatic Arthritis (DAPSA) response of apremilast in PsA patients and to analyze the predictors of clinical response. Methods: All PsA consecutive patients treated with apremilast in fifteen Italian rheumatological referral centers were enrolled. Anamnestic data, treatment history, and PsA disease activity (DAPSA) at baseline, 6 months, and 12 months were recorded. The Mann–Whitney test and chi-squared tests assessed the differences between independent groups, whereas the Wilcoxon matched pairs signed-rank test assessed the differences between dependent samples. Logistic regressions verified if there were factors associated with achievement of DAPSA low disease activity or remission at 6 and 12 months. Results: DAPSA low disease activity or remission rates at 6 and 12 months were observed, respectively, in 42.7% (n = 125) and 54.9% (n = 161) patients. Baseline DAPSA was inversely associated with the odds of achieving low disease activity or remission at 6 months (odds ratio (OR) 0.841, 95% confidence interval (CI) 0.804–0.879; p &lt; 0.01) and at 12 months (OR 0.911, 95% CI 0.883–0.939; p &lt; 0.01). Conclusions: Almost half of the PsA patients receiving apremilast achieved DAPSA low disease activity or remission at 6 and 12 months. The only factor associated with achievement of low disease activity or remission at both 6 and 12 months was baseline DAPSA