Prediction of a non-Abelian fractional quantum Hall state with ff-wave pairing of composite fermions in wide quantum wells

We theoretically investigate the nature of the state at quarter filled lowest Landau level and predict that, as the quantum well width is increased, a transition occurs from the composite fermion Fermi sea into a novel non-Abelian fractional quantum Hall state that is topologically equivalent to $f$-wave pairing of composite fermions. This state is topologically distinct from the familiar $p$-wave paired Pfaffian state. We compare our calculated phase diagram with experiments and make predictions for many observable quantities

NH3 Emissions From Treated Buffalo Manure Application In Mediterranean climate And Comparison To ALFAM Model

Ammonia volatilization is widely recognized as one of the major environmental European problems, due to the increase in livestock farming activities. As a consequence, accurate ammonia assessment is needed in order to control ammonia emissions and to update national emission inventories. Besides some uncertainties still related to the measurement methods, another important issue is the necessity of investigating a different kind of fertilizers. In the last few years, considerable attention has been paid to many manure treatments prior to field application. This study aims to assess ammonia emissions from the field application of separated buffalo manure digestate in the Mediterranean climate, in order to improve the emission inventory for this animal species, reared mostly in South Italy. Two measuring methods were used: wind tunnel (WT) and Integrated Horizontal flux (IHF). Moreover, ammonia emission measured were compared to those obtained running the statistical regression model ALFAM. This model based on Michaelis-Menten type equation is often used to predict cumulative ammonia loss and since it is based on a significant dataset is useful to discuss the effectiveness of the emission measured. The total ammonia losses measured in 7 days were 26.39 and 49.24 kg N ha-1, for WT and IHF, respectively. Although the predicted total emissions were 40.99 and 36.56 kg N ha-1, for IHF and WT, respectively, it is possible to observe the good accordance of the ALFAM model with the temporal pattern of both methods

Fish survey in Angitola lake: in field non-invasive evaluation of weight

The Angitola FISH2O project, granted by Calabria FEP 2007-13 (Code 02/BA/12), aim to survey biodiversity in aquatic ecosystems, in which fishes should represent the main trophic resource within the various food chains relative to the Angitola lake. The final objective is to obtain a monitoring of various species by means of non-invasive techniques. According to Water Framework Directive (2000/60/EC), capturing and manipulations of animals were minimized, and the subjects captured were promptly released. Two areas, unequivocally identified by GPS coordinate, were selected at 4 and 10 meters of depths, in which fishing nets1 were positioned. Captured fishes were all manipulated as follows: 1) removed by nets by cutting wires and minimizing stress; 2) placed in basins filled with water; 3) weighted, with an electronic scale, and measured; 4) photographed; 5) clinically evaluated; 6) released as soon as possible. The dead subjects (n=28) were preserved in a portable fridge; they belonged to the following species: Carassius carassius (n=10), Perca fluviatilis (n=8), and Squalius cephalus (n=10). Data collected allowed developing a linear relation between length and weight. The resulting prediction equations and the correlation coefficients (r2) are summarized in table 1. Such equations are intended to have the precision reported only in the species and the sizes described. Even if a more accurate method, which might include all three dimensions of fishes, should be analyzed, accuracy of this method, proved by the high values of r2 is fully acceptable not only in common species but even more in vulnerable and endangered species

Ammonia Emission Assessment After Buffalo Manure And Digestate Application

Quite recently, considerable attention has been paid to the effect of anaerobic digestion on ammonia emissions from digestate spreading in the field, due to the growing interest in NH3 emission monitoring. Unfortunately, there are still some different studies finding about the effect of anaerobic digestion on ammonia emissions. Thus, more research into this topic is still necessary before obtaining a definitive answer to the increment or not in emission. For this purpose, this paper proposes comparison study between ammonia emissions from buffalo raw (Farmyard) manure and digestate on bare soil under Mediterranean climate, using the wind tunnel equipped with acid traps, to assess the ammonia emission fluxes. The sampling campaign, in three replicates, lasted each time, for 6 days to ensure that most of the ammonia has been emitted before the end of each campaign. The results obtained indicate that a diurnal correlation between emission and external temperature occurs, especially during the first days. Specifically for both fertilizers, ammonia volatilization increased with air temperature raising. Overall, the total digestate cumulative NH3 emission is 54% higher than raw manure emission. This is certainly due to the Total NH4+-N rate, which was 55,8kg ha-1 for the raw manure and 107 kg ha-1 for the digestate, around 1,9 times higher for the digestate TAN content. Finding suggests the need for adjusting digestate application rate based on TAN content, in order to reduce the impact on the environment

Angitola lake sediments: preliminary data and biotic indices

The Angitola lake is an artificial basin located in Calabria Region, in South Italy, part of the “Natural Regional Park of Serre”. Its surface area is 1.96 km2 and it is approximately 3 km away from Sant’Eufemia gulf. The basin was created in 1966 by damming the homonymous river. Four major rivers enter the lake: three in the far southeast, the fourth, smaller and active only during the winter period, in the southwest area. The international Ramsar Convention includes the basin and surroundings; in light of the Rio Convention, its directives have been transposed in the “Birds Directive” (BD) and “Habitats Directive” (HD). The Angitola lake, entrusted to the WWF Calabria, is one of the 2299 Italian SIC (code IT9340086): this area significantly contributes in maintaining and restoring the endangered freshwater habitat listed in HD, in protecting biodiversity of the region and it is part of the Natura 2000 network. The present study is part of the Angitola FISH2O project (European Fisheries Fund/FEP code 02/BA/12) and it aimed to examine the benthic macro-invertebrates community of the southeast part of Angitola lake. The first 15 cm in depths of sediments have a very variable composition, from fine sand to mud (rich in organic matter). This variability can be explained by the different characteristic of the chosen sampling transepts. Fauna sampling, carried out by core drills and plankton nets, shows presence of Diptera and Tricoptera larvae and some Nematoda, Polichaeta and Mollusca. Preliminary conclusion is that the Angitola lake is a diversified environment in which areas with different anthropic interference are present. The benthic macro-invertebrates community might be involved by possible disturbances induced by chemicals (e.g. water pollution) and/or physical variations (e.g. high sedimentation). Medium and long-term investigations are imperative to protect and promote the lake biodiversity, to verify the effects of seasonal fluctuations and how these are related to human activities such as tourism, demographic increase and industrial activities

Leading the Future of Forensic Nursing: FNCB Unveils New Executive Committee 2025

An update to the FNCB executive is announced