264 research outputs found
Dentro del viaje constitucional europeo
This paper analyzes the European constitutional journey with the Habermasian concepts of solidarity and social integration. An analysis of the concept of constitution and of the European (economic) treaties reveals the lack of social integration as an obstacle to further economic integration. The aim is to link social justice and democracy at European constitutional level on the common basis of equality. From this perspective, the goal is to demonstrate the need for a constitutionalization with a strong democratic and social imprint because of the kind of solidarity which is embodied in the social rights
Dentro del viaje constitucional europeo
This paper analyzes the European constitutional journey with the Habermasian concepts of solidarity and social integration. An analysis of the concept of constitution and of the European (economic) treaties reveals the lack of social integration as an obstacle to further economic integration. The aim is to link social justice and democracy at European constitutional level on the common basis of equality. From this perspective, the goal is to demonstrate the need for a constitutionalization with a strong democratic and social imprint because of the kind of solidarity which is embodied in the social rights.Este trabajo analiza el camino constitucional europeo con los conceptos de Habermas de solidaridad e integración social. Un análisis del concepto de constitución y de los tratados (económicos) europeos revela la falta de integración social como un obstáculo para una mayor integración económica. El objetivo es vincular la justicia social y la democracia a nivel constitucional europeo sobre la base común de la igualdad. Desde esta perspectiva, el objetivo es demostrar la necesidad de una constitucionalización con una fuerte huella democrática y social debido al tipo de solidaridad que se encarna en los derechos sociales
A Semi-Automatic-Based Approach to the Extraction of Underwater Archaeological Features from Ultra-High-Resolution Bathymetric Data: The Case of the Submerged Baia Archaeological Park
Coastal and underwater archaeological sites pose significant challenges in terms of investigation, conservation, valorisation, and management. These sites are often at risk due to climate change and various human-made impacts such as urban expansion, maritime pollution, and natural deterioration. However, advances in remote sensing (RS) and Earth observation (EO) technologies applied to cultural heritage (CH) sites have led to the development of various techniques for underwater cultural heritage (UCH) exploration. The aim of this work was the evaluation of an integrated methodological approach using ultra-high-resolution (UHR) bathymetric data to aid in the identification and interpretation of submerged archaeological contexts. The study focused on a selected area of the submerged Archaeological Park of Baia (Campi Flegrei, south Italy) as a test site. The study highlighted the potential of an approach based on UHR digital bathymetric model (DBM) derivatives and the use of machine learning and statistical techniques to automatically extract and discriminate features of archaeological interest from other components of the seabed substrate. The results achieved accuracy rates of around 90% and created a georeferenced vector map similar to that usually drawn by hand by archaeologists
On the Use of Google Earth Engine and Sentinel Data to Detect “Lost” Sections of Ancient Roads. The Case of Via Appia
The currently available tools and services as open
and free cloud resources to process big satellite data opened
up a new frontier of possibilities and applications including
archeological research. These new research opportunities also
pose several challenges to be faced, as, for example, the data
processing and interpretation. This letter is about the assessment
of different methods and data sources to support a visual
interpretation of EO imagery. Multitemporal Sentinel 1 and
Sentinel 2 data sets have been processed to assess their capability
in the detection of buried archeological remains related to some
lost sections of the ancient Via Appia road (herein selected
as case study). The very subtle and nonpermanent features
linked to buried archeological remains can be captured using
multitemporal (intra- and inter-year) satellite acquisitions, but
this requires strong hardware infrastructures or cloud facilities,
today also available as open and free tools as Google Earth Engine
(GEE). In this study, a total of 2948 Sentinel 1 and 743 Sentinel
2 images were selected (from February 2017 to August 2020)
and processed using GEE to enhance and unveil archeological
features. Outputs obtained from both Sentinel 1 and Sentinel
2 have been successfully compared with in situ analysis and
high-resolution Google Earth images
Insulin Resistance and Body Fat Distribution in South Asian Men Compared to Caucasian Men
South Asians are susceptible to insulin resistance even without obesity. We examined the characteristics of body fat content, distribution and function in South Asian men and their relationships to insulin resistance compared to Caucasians.Twenty-nine South Asian and 18 Caucasian non-diabetic men (age 27+/-3 and 27+/-3 years, respectively) underwent euglycemic-hyperinsulinemic clamp for insulin sensitivity, underwater weighing for total body fat, MRI of entire abdomen for intraperitoneal (IP) and subcutaneous abdominal (SA) fat and biopsy of SA fat for adipocyte size.Compared to Caucasians, in spite of similar BMI, South Asians had higher total body fat (22+/-6 and 15+/-4% of body weight; p-value<0.0001), higher SA fat (3.5+/-1.9 and 2.2+/-1.3 kg, respectively; p-value = 0.004), but no differences in IP fat (1.0+/-0.5 and 1.0+/-0.7 kg, respectively; p-value = 0.4). SA adipocyte cell size was significantly higher in South Asians (3491+/-1393 and 1648+/-864 microm2; p-value = 0.0001) and was inversely correlated with both glucose disposal rate (r-value = -0.57; p-value = 0.0008) and plasma adiponectin concentrations (r-value = -0.71; p-value<0.0001). Adipocyte size differences persisted even when SA was matched between South Asians and Caucasians.Insulin resistance in young South Asian men can be observed even without increase in IP fat mass and is related to large SA adipocytes size. Hence ethnic excess in insulin resistance in South Asians appears to be related more to excess truncal fat and dysfunctional adipose tissue than to excess visceral fat
Wireless Point-of-Care Platform With Screen-Printed Sensors for Biomarkers Detection
Measurement systems for early and reliable detection of degenerative diseases, such as Alzheimer's disease (AD), are extremely important in clinical diagnosis. Among these, biochemical assays represent a commonly used method to distinguish patients from healthy population thanks to the sensitive recognition of specific biomarkers in biological fluids. In order to overcome actual limitations of these techniques in term of cost, standardization, and sensitivity, this study aimed to realize a low-cost highly sensitive portable point-of-care (PoC) testing system based on screen-printed electrochemical sensors. The development of the platform specifically included both the design of the sensing probe and the electronic circuit devoted to condition and acquires the transduced electric signal. The designed circuit was implemented in a printed circuit board and interfaced to a wireless system based on bluetooth data transmission in order to improve the portability of the proposed solution. Preliminary results were obtained by using controlled concentrations of electrolytic solutions and calibrating the sensors for antibodies and for a well-known protein (i.e., interleukin 8) quantified by anodic stripping voltammetry (ASV). Findings from ASV measurements showed a sensitivity of 38 μA/(ng/ml) with a tested range from 1.25 to 20 ng/ml, with a limit of detection of 2 ng/ml. Further investigation will include the validation of this PoC device by testing the concentration of a specific p53 protein isoform, which was recently identified to early correlate to AD development
Investigations of Carbon Nitride-Supported Mn3O4 Oxide Nanoparticles for ORR
Earth-abundant Mn-based oxide nanoparticles are supported on carbon nitride using two different immobilization methods and tested for the oxygen reduction reaction. Compared to the metal free CN, the immobilization of Mn oxide enhances not only the electrocatalytic activity but also the selectivity towards the 4e- reduction reaction of O-2 to H2O. The XPS analysis reveals the interaction of the pyridine N species with Mn3O4 nanoparticles being particularly beneficial. This interaction is realized-although to a limited extent-when preparing the catalysts via impregnation; via the oleic acid route it is not observed. Whilst this work shows the potential of these systems to catalyze the ORR, the main limiting factor is still the poor conductivity of the support which leads to overpotential
Insights from international environmental legislation and protocols for the global plastic treaty
Correction to: Insights from international environmental legislation and protocols for the global plastic treaty (Scientific Reports, (2024), 14, 1, (2750), 10.1038/s41598-024-53099-9) Margrethe Aanesen, Julide C. Ahi, Tenaw G. Abate, Farhan R. Khan, Frans P. de Vries, Hauke Kite-Powell, Nicola J. Beaumont, 2024, vol. 14, issue 1. Scientific Reports http://www.scopus.com/inward/record.url?scp=85188545299&partnerID=8YFLogxK, https://doi.org/10.1038/s41598-024-57568-zPeer reviewe
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