86 research outputs found
Linking type 2 diabetes and gynecological cancer: An introductory overview
Type 2 diabetes (T2D) is a chronic disease with a growing prevalence and a leading cause of death in many countries. Several epidemiological studies observed an association between T2D and increased risk of many types of cancer, such as gynecologic neoplasms (endometrial, cervical, ovarian and vulvar cancer). Insulin resistance, chronic inflammation and high free ovarian steroid hormones are considered the possible mechanisms behind this complex relationship. A higher risk of endometrial cancer was observed in T2D, even though this association largely attenuated after adjusting for obesity. A clear relationship between the incidence of cervical cancer (CC) and T2D has still not be determined; however T2D might have an impact on prognosis in patients with CC. To date, studies on the association between T2D and ovarian cancer (OC) are limited. The effect of pre-existing diabetes on cancer-specific mortality has been evaluated in several studies, with less clear results. Other epidemiological and experimental studies focused on the potential role of diabetes medications, mainly metformin, in cancer development in women. The correct understanding of the link between T2D and gynecologic cancer risk and mortality is currently imperative to possibly modify screening and diagnostic-therapeutic protocols in the future
A Low-cost Sensing System for Cooperative Air Quality Monitoring in Urban Areas
Air quality in urban areas is a very important topic as it closely affects the health of citizens. Recent studies highlight that the exposure to polluted air can increase the incidence of diseases and deteriorate the quality of life. Hence, it is necessary to develop tools for real-time air quality monitoring, so as to allow appropriate and timely decisions. In this paper, we present uSense, a low-cost cooperative monitoring tool that allows knowing, in real-time, the concentrations of polluting gases in various areas of the city. Specifically, users monitor the areas of their interest by deploying low-cost and low-power sensor nodes. In addition, they can share the collected data following a social networking approach. uSense has been tested through an in-field experimentation performed in different areas of a city. The obtained results are in line with those provided by the local environmental control authority and show that uSense can be profitably used for air quality monitoring
Orti Urbani: riqualificazione energetica e funzionale dell'ex asilo Santarelli a ForlĂŹ
Oggetto della tesi di laurea Ăš la riqualificazione energetica e funzionale dellâex asilo Santarelli a ForlĂŹ. Il complesso sorge su un area al margine del tracciato
delle mura storiche della cittĂ dove erano collocati gli orti medievali.
Promosso dalla collettivitĂ e da numerosi enti caritatevoli come primo asilo laico della cittĂ , lâedificio venne progettato nel 1934 dallâing Guido Savini, secondo i
caratteri stilistici e compositivi dellâarchitettura razionalista e inaugurato da donna Rachele Mussolini nel 1937. Lâedificio, di proprietĂ dellâO.A.S.I. A.S.P., ha svolto la sua attivitĂ educativa fino alla sua chiusura avvenuta a giugno 2012, a causa degli gli elevati costi di
gestione e per lâinidoneitĂ della struttura alle attuali necessitĂ . Lâamministrazione comunale ha manifestato lâintenzione di recuperare lâimmobile, soggetto al parere della soprintendenza, prevedendo di ospitare nuove funzioni didattiche, a conferma della sua destinazione storica, ma
organizzate in base alle esigenze attuali, secondo il principio dellâeconomicitĂ . Dalle analisi urbane Ăš emerso che il quartiere dispone di servizi quali il museo
San Domenico, la casa di riposo e il parco Franco Agosto, ma che al contempo la sua posizione marginale e la struttura della viabilitĂ lo rendono un punto di
passaggio automobilistico tra la periferia e il centro storico. Per la formulazione di un programma funzionale si Ăš condotta unâindagine sia
sugli attuali servizi didattici che gli indirizzi di sviluppo sociale offerti dallâamministrazione, ha fatto emergere una carenza degli spazi verdi allâinterno
delle scuole e la presenza di un programma di sviluppo degli orti urbani nelle aree di proprietĂ comunali.
Al fine di rispondere alle esigenze della pubblica amministrazione si Ăš deciso di formulare una proposta di intervento su due livelli.
Il primo mediante una ridefinizione fisica del rapporto tra lâedificio, il quartiere e il sistema della mobilitĂ . Il secondo attraverso una proposta funzionale che
potesse coinvolgere non solo gli studenti ma tutta la cittadinanza. Per la ridefinizione del rapporto tra lâedificio e il quartiere si Ăš deciso di eliminare
lâisolamento dellâedificio imposto dalla recinzione esistente, mediante la 8 realizzazione di nuovi varchi di accesso. Diventa cosĂŹ possibile proporre un
nuovo percorso pedonale inserito allâinterno dellâarea verde dellâedificio.
In prossimitĂ dellâaccesso su via Val Verde, Ăš stato realizzato un ambiente filtro a relazione tra la cittĂ e il verde privato.Per migliorare lâaccessibilitĂ , favorire il coinvolgimento del pubblico e promuovere lâinterazione con le aree verdi circostanti, si sono definiti dei
concetti chiave: chiusura, connessione tra le preesistenze, varco, permeabilitĂ visiva, organicitĂ . La tensostruttura, caratteristica per sua flessibilitĂ , leggerezza
e trasparenza, Ăš stato lâelemento scelto per rispondere alle esigenze, permettendo al contempo di distinguere lâintervento dalle preesistenze. Il nuovo programma funzionale suddivide lâedificio in tre zone autonome, cosĂŹ
da affiancare alla didattica, una zona pubblica per offrire uno spazio a disposizione della comunitĂ e una commerciale per garantire una quota di risorse finanziarie alla gestione dellâimmobile. Nello specifico, la didattica Ăš stata specializzata per lâinsegnamento
dellâorticultura, al fine di promuovere lâeducazione della sostenibilitĂ ambientale, la valorizzazione degli spazi verdi e la promozione dei prodotti del territorio.
Lâispirazione scaturisce dal primo orto didattico nato in America a metĂ degli anni â90 ad opera dello chef Alice Waters, precursore degli attuali sviluppi didattici e sociali allâinterno delle scuole.
Il recupero di alcune funzioni originali ha favorito la tripartizione dellâedificio, inoltre la disponibilitĂ di piĂč accessi esistenti ha garantito la possibilitĂ di
rendere autonoma le tre zone.
Le aule sono state collegate direttamente con lâesterno ed il problema del dislivello con il giardino, Ăš stato risolto realizzando un porticato coperto, che dilata lo spazio didattico sullâesterno. Il solarium, nonostante fosse abbandonato da anni, grazie alla sua posizione
privilegiata per lâosservazione del parco e della cittĂ Ăš stato recuperando inserendolo come nuovo punto di sosta nel sistema dei percorsi pubblici. Per questo Ăš stato necessario progettare un corpo scale esterno per rendere
accessibile ed autonomo lâambiente. Lâultimo aspetto affrontato Ăš lâintervento di retrofit energetico, pensato in varie fasi per essere il meno invasivo possibile
sullâimmobile, prevede lâinstallazione di un sistema di ventilazione meccanica, un isolamento termico interno di 10cm in lana di roccia montata 9 meccanicamente e la sostituzione di tutti gli infissi non originali con soluzioni piĂč performanti.
Per raggiungere la classe A Ăš stato necessario intervenire anche sugli impianti,
introducendo un sistema autonomo per la zona commerciale e la sostituzione di tutti i terminali radianti.
Considerando lâelevato fabbisogno di energia primaria si Ăš integrata una parte questa mediante lâutilizzo di fonti rinnovabili quali fotovoltaico e solare termico.
patrimonio storico, adattandolo alle nuove necessitĂ e dimostrando come sia possibile la trasformazione di un edificio fortemente energivoro in una con
ridotto fabbisogno energetico senza stravolgere la struttura e aggiungendo
qualitĂ e valore
Magnetic resonance imaging in the assessment of brain involvement in alcoholic and nonalcoholic Wernicke's encephalopathy
To present the typical and atypical magnetic resonance (MR) imaging findings of alcoholic and non-alcoholic Wernicke's encephalopathy
Raman spectroscopy of gallium ion irradiated graphene
The successful integration of graphene in future technologies, such as filtration and nanoelectronics, depends on the ability to introduce controlled nanostructured defects in graphene. In this work, Raman spectroscopy is used to investigate the induction of disorder in graphene via gallium ion beam bombardment. Two configurations of CVD-grown graphene samples are used: (i) graphene supported on a Si/SiO2 substrate, and (ii) graphene suspended on porous TEM grids. It is observed that the supported graphene experiences more damage in response to lower beam doses than suspended graphene. This phenomenon is attributed to the behaviour of the energetic ions impinging the sample. In suspended graphene, the ions pass through the graphene membrane once and disperse to the atmosphere,
while in supported graphene, the ions embed themselves in the substrate causing swelling and backscattering events, hence increasing the induced disorder. In supported graphene, the ratio between the Gaussian D and G peaks attributed to amorphous carbon, and the Lorentzian D and G peaks attributed to graphene, (IDG/IDL) and (IGG/IGL), are suggested to be used to quantify the degree of amorphization. The results are relevant to the development of nanostructured graphene-based filtration or desalination membranes, as well as for graphene-based nanoelectronics.JRC.F.2-Consumer Products Safet
Analysis of shear-transfer actions on one-way RC members based on measured cracking pattern and failure kinematics
Shear in one-way reinforced concrete (RC) members is transferred in cracked concrete members by a number of actions such as aggregate interlock, residual tensile stresses, dowelling action, inclination of compression chord and transverse reinforcement (if available). The amount of shear transferred by each action is significantly influenced by the cracking pattern (shape of shear cracks) and by the kinematics at failure (opening and sliding of the cracks). In this paper, the activation of the various shear-transfer actions is investigated for one-way RC members. This is done by using a set of detailed measurements on the cracking pattern and actual kinematics at failure recorded on a number of specimens (beams) with a very low amount of transverse reinforcement. The amount of shear transferred by each action is estimated on the basis of available physical models and compared for the various specimens. The results show rather good predictions in terms of strength by following this approach. Consistent explanations of the shear transferred by each action are provided
Value of serial magnetic resonance imaging in the assessment of brain metastases volume control during stereotactic radiosurgery
To evaluate brain metastases volume control capabilities of stereotactic radiosurgery (SRS) through serial magnetic resonance (MR) imaging follow-up
Energy Estimation of Cosmic Rays with the Engineering Radio Array of the Pierre Auger Observatory
The Auger Engineering Radio Array (AERA) is part of the Pierre Auger
Observatory and is used to detect the radio emission of cosmic-ray air showers.
These observations are compared to the data of the surface detector stations of
the Observatory, which provide well-calibrated information on the cosmic-ray
energies and arrival directions. The response of the radio stations in the 30
to 80 MHz regime has been thoroughly calibrated to enable the reconstruction of
the incoming electric field. For the latter, the energy deposit per area is
determined from the radio pulses at each observer position and is interpolated
using a two-dimensional function that takes into account signal asymmetries due
to interference between the geomagnetic and charge-excess emission components.
The spatial integral over the signal distribution gives a direct measurement of
the energy transferred from the primary cosmic ray into radio emission in the
AERA frequency range. We measure 15.8 MeV of radiation energy for a 1 EeV air
shower arriving perpendicularly to the geomagnetic field. This radiation energy
-- corrected for geometrical effects -- is used as a cosmic-ray energy
estimator. Performing an absolute energy calibration against the
surface-detector information, we observe that this radio-energy estimator
scales quadratically with the cosmic-ray energy as expected for coherent
emission. We find an energy resolution of the radio reconstruction of 22% for
the data set and 17% for a high-quality subset containing only events with at
least five radio stations with signal.Comment: Replaced with published version. Added journal reference and DO
Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy
We measure the energy emitted by extensive air showers in the form of radio
emission in the frequency range from 30 to 80 MHz. Exploiting the accurate
energy scale of the Pierre Auger Observatory, we obtain a radiation energy of
15.8 \pm 0.7 (stat) \pm 6.7 (sys) MeV for cosmic rays with an energy of 1 EeV
arriving perpendicularly to a geomagnetic field of 0.24 G, scaling
quadratically with the cosmic-ray energy. A comparison with predictions from
state-of-the-art first-principle calculations shows agreement with our
measurement. The radiation energy provides direct access to the calorimetric
energy in the electromagnetic cascade of extensive air showers. Comparison with
our result thus allows the direct calibration of any cosmic-ray radio detector
against the well-established energy scale of the Pierre Auger Observatory.Comment: Replaced with published version. Added journal reference and DOI.
Supplemental material in the ancillary file
Dupilumab in the treatment of severe uncontrolled chronic rhinosinusitis with nasal polyps (CRSwNP): A multicentric observational Phase IV real-life study (DUPIREAL)
Background
Chronic rhinosinusitis with nasal polyps (CRSwNP) is associated with significant morbidity and reduced health-related quality of life. Findings from clinical trials have demonstrated the effectiveness of dupilumab in CRSwNP, although real-world evidence is still limited.
Methods
This Phase IV real-life, observational, multicenter study assessed the effectiveness and safety of dupilumab in patients with severe uncontrolled CRSwNP (nâ=â648) over the first year of treatment. We collected data at baseline and after 1, 3, 6, 9, and 12âmonths of follow-up. We focused on nasal polyps score (NPS), symptoms, and olfactory function. We stratified outcomes by comorbidities, previous surgery, and adherence to intranasal corticosteroids, and examined the success rates based on current guidelines, as well as potential predictors of response at each timepoint.
Results
We observed a significant decrease in NPS from a median value of 6 (IQR 5â6) at baseline to 1.0 (IQR 0.0â2.0) at 12âmonths (pâ<â.001), and a significant decrease in Sino-Nasal Outcomes Test-22 (SNOT-22) from a median score of 58 (IQR 49â70) at baseline to 11 (IQR 6â21; pâ<â.001) at 12âmonths. Sniffin' Sticks scores showed a significant increase over 12âmonths (pâ<â.001) compared to baseline. The results were unaffected by concomitant diseases, number of previous surgeries, and adherence to topical steroids, except for minor differences in rapidity of action. An excellent-moderate response was observed in 96.9% of patients at 12âmonths based on EPOS 2020 criteria.
Conclusions
Our findings from this large-scale real-life study support the effectiveness of dupilumab as an add-on therapy in patients with severe uncontrolled CRSwNP in reducing polyp size and improving the quality of life, severity of symptoms, nasal congestion, and smell
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