820 research outputs found
Il sistema corporativo come forma politica. Profilo storico e metodologico e studio del contesto italiano in In <G. COFRANCESCO, F. BORASI, Il sistema corporativo come forma politica. Profilo storico e metodologico e studio del contesto italiano. Diritto e diritti a geometria variabile>, Giappichelli, Torino, 2010, pp. 184-199
Il sistema corporativo come forma politica. Profilo storico e metodologico e studio del contesto italiano in In <G. COFRANCESCO, F. BORASI, Il sistema corporativo come forma politica. Profilo storico e metodologico e studio del contesto italiano. Diritto e diritti a geometria variabile>, Giappichelli, Torino, 2010, pp. 184-199
Cannabis through the looking glass: chemo- and enantio-selective separation of phytocannabinoids by enantioselective ultra high performance supercritical fluid chromatography
By using the Inverted Chirality Columns Approach (ICCA) we have developed an enantioselective UHPSFC method to determine the enantiomeric excess (ee) of (-)-Δ(9)-THC in medicinal marijuana (Bedrocan®). The ee was high (99.73%), but the concentration of the (+)-enantiomer (0.135%) was not negligible, and it is worth a systematic evaluation of bioactivity
Analysis of the Inner Fluid-Dynamics of Scroll Compressors and Comparison between CFD Numerical and Modelling Approaches
Scroll compressors are widely adopted machines in both refrigeration systems and heat
pumps. However, their efficiency is basically poor and constitutes the main bottleneck for improving
the overall system performance. In fact, due to the complex machine fluid dynamics, scroll design
is mainly based on theoretical and/or semi-empirical approaches. Designs strategies that do not
guarantee an in-depth analysis of the machine behavior can be supplemented with a Computation
Fluid Dynamics (CFD) approach. To this purpose, in the present work, the scroll compressor inner
fluid dynamics is numerically analyzed in detail using two CFD software and two different modelling
strategies for the axial gap. The analysis of the fluid evolution within the scroll wraps reveals unsteady
phenomena developing during the suction and discharge phases, amplified by the axial clearance
with negative impact on the main fluid flow (e.g., 1213% of average mass flow rate for an axial gap
of 30 \ub5) and on the scroll performance (e.g., +26% of average absorbed power for an axial gap of
30 \ub5). In terms of accuracy, the k-" offers good performance on the estimation of average quantities
but proves to be inadequate for capturing the complexity of the unsteady phenomena caused by the
axial gap (e.g., 1219% of the absorbed power in case of perfect tip seal). The need for considering
specific geometric details in design procedures is highlighted, and guidelines on the choice of the
most suitable numerical model are provided depending on the analysis need
Accumulation of trace metals in crayfish tissues: is Procambarus clarkii a vector of pollutants in Po Delta inland waters?
Concentrations of trace elements (Cd, Pb, As, Cu and Zn) were determined in superficial sediments and in hepatopancreas, exoskeleton, and abdominal muscle of the red swamp crayfish Procambarus clarkii from several canals of the Po River Delta area. Sediments of the studied canals exhibited some metal pollution. The hepatopancreas of the crayfish showed a higher concentration of trace metals in comparison to the other tissues at all sites under scrutiny. Concentrations of As and Pb, either in sediment and P. clarkii tissues, were probably related to the use of fertilizers and pesticides. Moreover, the levels of certain metals accumulated in the abdominal muscle (Pb, Cu and Zn) exceeded the threshold values considered harmful to human health. The Toxic Contamination Index, depending on the bioaccumulation data of hepatopancreas and abdominal muscle, allowed us to assess the toxicity by heavy metals of sediments measuring the stress level of the detoxification organ, and resulted in >1 only at two sampling canals. We hypothesize that P. clarkii in the Po River Delta aquatic communities can act as a vector of pollutants, as crayfish can transfer their relatively high amount of heavy metals to higher trophic levels
Anaplastic B-cell lymphoma
Review on Anaplastic B-cell lymphoma, with data on clinics, and the genes involved
Current Developments of Analytical Methodologies for Aflatoxins’ Determination in Food during the Last Decade (2013–2022), with a Particular Focus on Nuts and Nut Products
This review aims to provide a clear overview of the most important analytical development in aflatoxins analysis during the last decade (2013-2022) with a particular focus on nuts and nuts-related products. Aflatoxins (AFs), a group of mycotoxins produced mainly by certain strains of the genus Aspergillus fungi, are known to impose a serious threat to human health. Indeed, AFs are considered carcinogenic to humans, group 1, by the International Agency for Research on Cancer (IARC). Since these toxins can be found in different food commodities, food control organizations worldwide impose maximum levels of AFs for commodities affected by this threat. Thus, they represent a cumbersome issue in terms of quality control, analytical result reliability, and economical losses. It is, therefore, mandatory for food industries to perform analysis on potentially contaminated commodities before the trade. A full perspective of the whole analytical workflow, considering each crucial step during AFs investigation, namely sampling, sample preparation, separation, and detection, will be presented to the reader, focusing on the main challenges related to the topic. A discussion will be primarily held regarding sample preparation methodologies such as partitioning, solid phase extraction (SPE), and immunoaffinity (IA) related methods. This will be followed by an overview of the leading analytical techniques for the detection of aflatoxins, in particular liquid chromatography (LC) coupled to a fluorescence detector (FLD) and/or mass spectrometry (MS). Moreover, the focus on the analytical procedure will not be specific only to traditional methodologies, such as LC, but also to new direct approaches based on imaging and the ability to detect AFs, reducing the need for sample preparation and separative techniques
Immunoblastic lymphoma
Review on Immunoblastic lymphoma, with data on clinics, and the genes involved
Centroblastic lymphoma
Review on Centroblastic lymphoma, with data on clinics, and the genes involved
T-cell/histiocyte-rich large B cell lymphoma
Review on T-cell/histiocyte-rich large B cell lymphoma, with data on clinics, and the genes involved
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