1,769 research outputs found
Primi risultati del progetto LIFE+ sulle analisi microbiologiche delle acque nel Parco dei Gessi dellâEmilia Romagna
Dal 2010 è in corso il Progetto Life + 08NAT/IT/000369 âGypsumâ
2, cofinanziato dallâUnione Europea, finalizzato alla tutela
e gestione dei principali ambienti gessosi dellâEmilia Romagna.
Nellâambito dellâAzione A3 è previsto un monitoraggio pluriennale
dei principali acquiferi carsici sotto lâaspetto chimico e
microbiologico. Nel corso del primo anno sono state analizzate
le acque carsiche su circa 50 punti di controllo (inghiottitoi,
fiumi, torrenti in grotta, e risorgenti). In generale lâobiettivo di
questa sperimentazione è quello di valutare lâimpatto di sostanze
di origine agricola o di altre forme di inquinamento, legate
ad insediamenti o attivitĂ antropiche o fattori naturali, in
acque di grotta. La sperimentazione è stata sviluppata tramite
tecniche microbiologiche classiche e di biologia molecolare
(PCR 16S rRNA e PCR-DGGE), finalizzate alla caratterizzazione
delle popolazioni microbiche presenti nei diversi siti di
prelievo e alla determinazione di loro eventuali variazioni e/o
evoluzioni. I valori di carica microbica totale determinati oscillavano
da un massimo di 3.32 ad un minimo di 0.18 log UFC/
ml e da un massimo di 2.26 fino a valori al di sotto del limite di
determinazione (1 log UFC/ml) per quanto riguarda i coliformi
totali e fecali. Le analisi genetiche hanno mostrato la presenza
di numerosi specie batteriche (Agrobacterium tumefaciens,
Pseudomonas spp., Rahnella aquatilis, Stenotrophomonas
maltophilia, Pedobacter swuonensis, Enterobacter spp., Aeromonas
hydrophila, Citrobacter, Klebsiella and Raoultella). I
microrganismi identificati possono avere diverse origini, alcuni
provengono dal terreno, altri possono essere comuni contaminanti
delle acque ed altri avere unâorigine antropica (batteri
fecali). Fino a questo step del progetto, lâanalisi PCR-DGGE ha
evidenziato le evoluzioni ecologiche, in termine di popolazioni
microbiche, presenti tra i diversi campioni e i diversi siti di
campionamento allâinterno di una stessa grotta.The Project Life + 08NAT/IT/000369 âGypsumâ 2, co-financed
by the European Union, has started in the spring
of 2010. This project aims to protect and manage the main
karst caves and sites of Emilia-Romagna region. The A3
action provides a periodic monitoring of the main karst
aquifers in terms of chemistry and microbiology.
During the first year and a half, karst waters of 50 control
points were analysed (sinking streams, rivers and streams
in caves, and resurgences).
The objective of this study is to evaluate the impact, in the
waters of the cave, of agricultural substances or other forms
of pollution or settlements related to human activities
or natural factors. The experiment was developed using
traditional microbiology techniques and molecular biology
techniques (PCR and 16S rRNA PCR-DGGE), focused on
the characterization of microbial populations in the different
sampling sites and determination of their variations
and/or changes. The total microbial concentration ranged
from a maxiimum of 3.32 or 2.26 to values below the limit
of detection (1 log CFU/ml) for total and faecal colifroms,
respectively. The genetic analysis showed the presence of
numerous bacterial species (Agrobacterium tumefaciens,
Pseudomonas spp., Rahnella aquatilis, Stenotrophomonas
maltophilia, Pedobacter swuonensis, Enterobacter spp.,
Aeromonas hydrophila, Citrobacter, Klebsiella and Raoultella).
The organisms identified have different origins, some
come from the ground, others are common water contaminants
and others derive from human activities (faecal
bacteria). Up to now, PCR-DGGE revealed the ecological
changes, in terms of microbial populations present in the
samples, and different sampling sites within the same cave
Nabilone for the treatment of medication overuse headache: results of a preliminary double-blind, active-controlled, randomized trial.
Medication overuse headache (MOH) is a severe burden to sufferers and its treatment has few evidence-based indications. The aim of this study is to evaluate efficacy and safety of nabilone in reducing pain and frequency of headache, the number of analgesic intake and in increasing the quality of life on patients with long-standing intractable MOH. Thirty MOH patients were enrolled at the University of Modena's Interdepartmental Centre for Research on Headache and Drug Abuse (Italy) in a randomized, double-blind, active-controlled, crossover study comparing nabilone 0.5 mg/day and ibuprofen 400 mg. The patients received each treatment orally for 8 weeks (before nabilone and then ibuprofen or vice versa), with 1 week wash-out between them. Randomization and allocation (ratio 1:1) were carried out by an independent pharmacy through a central computer system. Participants, care givers, and those assessing the outcomes were blinded to treatment sequence. Twenty-six subjects completed the study. Improvements from baseline were observed with both treatments. However, nabilone was more effective than ibuprofen in reducing pain intensity and daily analgesic intake (p < 0.05); moreover, nabilone was the only drug able to reduce the level of medication dependence (-41 %, p < 0.01) and to improve the quality of life (p < 0.05). Side effects were uncommon, mild and disappeared when nabilone was discontinued. This is the first randomized controlled trial demonstrating the benefits of nabilone on headache, analgesic consumption and the quality of life in patients with intractable MOH. This drug also appears to be safe and well-tolerated. Larger scale studies are needed to confirm these preliminary finding
Analysis of end-to-end multi-domain management and orchestration frameworks for software defined infrastructures: an architectural survey
Over the last couple of years, industry operatorsâ associations issued requirements towards an end-to-end management and
orchestration plane for 5G networks. Consequently, standard organisations started their activities in this domain. This arti-
cle provides an analysis and an architectural survey of these initiatives and of the main requirements, proposes descriptions
for the key concepts of domain, resource and service slicing, end-to-end orchestration and a reference architecture for the
end-to-end orchestration plane. Then, a set of currently available or under development domain orchestration frameworks
are mapped to this reference architecture. These frameworks, meant to provide coordination and automated management
of cloud and networking resources, network functions and services, fulfil multi-domain (i.e. multi-technology and multi-
operator) orchestration requirements, thus enabling the realisation of an end-to-end orchestration plane. Finally, based on
the analysis of existing single-domain and multi-domain orchestration components and requirements, this paper presents
a functional architecture for the end-to-end management and orchestration plane, paving the way to its full realisation
Network Analysis of Oyster Transcriptome Revealed a Cascade of Cellular Responses during Recovery after Heat Shock
Oysters, as a major group of marine bivalves, can tolerate a wide range of natural and anthropogenic stressors including heat stress. Recent studies have shown that oysters pretreated with heat shock can result in induced heat tolerance. A systematic study of cellular recovery from heat shock may provide insights into the mechanism of acquired thermal tolerance. In this study, we performed the first network analysis of oyster transcriptome by reanalyzing microarray data from a previous study. Network analysis revealed a cascade of cellular responses during oyster recovery after heat shock and identified responsive gene modules and key genes. Our study demonstrates the power of network analysis in a non-model organism with poor gene annotations, which can lead to new discoveries that go beyond the focus on individual genes
Acute chest syndrome in children with sickle cell disease: Data from a national AIEOP cohort identify priority areas of intervention in a hub-and-spoke system
: Acute chest syndrome (ACS) is a frequent cause of hospitalization in sickle cell disease (SCD). Despite advances in acute care, many settings still lack knowledge about ACS best practices. After the AIEOP Guidelines were published in 2012, suggesting standardized management in Italy, a retrospective study was performed to assess the diagnostic and therapeutic pathways of ACS in children. From 2013 to 2018, 208 ACS episodes were presented by 122/583 kids in 11 centres. 73 were male, mean age 10.9âyears, 85% African, 92% HbSS or Sβ°. In our hub-and-spoke system, a good adherence to Guidelines was documented, but discrepancies between reference centres and general hospitals were noted. Improvement is needed for timely transfer to reference centres, use of incentive spirometry, oxygen therapy and pain management
Analysis of end-to-end multi-domain management and orchestration frameworks for software defined infrastructures: An architectural survey
Over the last couple of years, industry operators' associations issued requirements towards an end-to-end management and orchestration plane for 5G networks. Consequently, standard organisations started their activities in this domain. This article provides an analysis and an architectural survey of these initiatives and of the main requirements, proposes descriptions for the key concepts of domain, resource and service slicing, end-to-end orchestration and a reference architecture for the end-to-end orchestration plane. Then, a set of currently available or under development domain orchestration frameworks are mapped to this reference architecture. These frameworks, meant to provide coordination and automated management of cloud and networking resources, network functions and services, fulfil multi-domain (i.e. multi-technology and multi-operator) orchestration requirements, thus enabling the realisation of an end-to-end orchestration plane. Finally, based on the analysis of existing single-domain and multi-domain orchestration components and requirements, this paper presents a functional architecture for the end-to-end management and orchestration plane, paving the way to its full realisatio
Prospects for the measurement of muon-neutrino disappearance at the FNAL-Booster
Neutrino physics is nowadays receiving more and more attention as a possible
source of information for the long-standing problem of new physics beyond the
Standard Model. The recent measurement of the mixing angle in the
standard mixing oscillation scenario encourages us to pursue the still missing
results on leptonic CP violation and absolute neutrino masses. However,
puzzling measurements exist that deserve an exhaustive evaluation. The NESSiE
Collaboration has been setup to undertake conclusive experiments to clarify the
muon-neutrino disappearance measurements at small , which will be able to
put severe constraints to models with more than the three-standard neutrinos,
or even to robustly measure the presence of a new kind of neutrino oscillation
for the first time. To this aim the use of the current FNAL-Booster neutrino
beam for a Short-Baseline experiment has been carefully evaluated. This
proposal refers to the use of magnetic spectrometers at two different sites,
Near and Far. Their positions have been extensively studied, together with the
possible performances of two OPERA-like spectrometers. The proposal is
constrained by availability of existing hardware and a time-schedule compatible
with the CERN project for a new more performant neutrino beam, which will
nicely extend the physics results achievable at the Booster. The possible FNAL
experiment will allow to clarify the current disappearance tension
with appearance and disappearance at the eV mass scale. Instead, a new
CERN neutrino beam would allow a further span in the parameter space together
with a refined control of systematics and, more relevant, the measurement of
the antineutrino sector, by upgrading the spectrometer with detectors currently
under R&D study.Comment: 76 pages, 52 figure
Analysis of end-to-end multi-domain management and orchestration frameworks for software defined infrastructures: An architectural survey
Over the last couple of years, industry operators' associations issued requirements towards an end-to-end management and orchestration plane for 5G networks. Consequently, standard organisations started their activities in this domain. This article provides an analysis and an architectural survey of these initiatives and of the main requirements, proposes descriptions for the key concepts of domain, resource and service slicing, end-to-end orchestration and a reference architecture for the end-to-end orchestration plane. Then, a set of currently available or under development domain orchestration frameworks are mapped to this reference architecture. These frameworks, meant to provide coordination and automated management of cloud and networking resources, network functions and services, fulfil multi-domain (i.e. multi-technology and multi-operator) orchestration requirements, thus enabling the realisation of an end-to-end orchestration plane. Finally, based on the analysis of existing single-domain and multi-domain orchestration components and requirements, this paper presents a functional architecture for the end-to-end management and orchestration plane, paving the way to its full realisation
Search for anomalies in the neutrino sector with muon spectrometers and large LArTPC imaging detectors at CERN
A new experiment with an intense ~2 GeV neutrino beam at CERN SPS is proposed
in order to definitely clarify the possible existence of additional neutrino
states, as pointed out by neutrino calibration source experiments, reactor and
accelerator experiments and measure the corresponding oscillation parameters.
The experiment is based on two identical LAr-TPCs complemented by magnetized
spectrometers detecting electron and muon neutrino events at Far and Near
positions, 1600 m and 300 m from the proton target, respectively. The ICARUS
T600 detector, the largest LAr-TPC ever built with a size of about 600 ton of
imaging mass, now running in the LNGS underground laboratory, will be moved at
the CERN Far position. An additional 1/4 of the T600 detector (T150) will be
constructed and located in the Near position. Two large area spectrometers will
be placed downstream of the two LAr-TPC detectors to perform charge
identification and muon momentum measurements from sub-GeV to several GeV
energy range, greatly complementing the physics capabilities. This experiment
will offer remarkable discovery potentialities, collecting a very large number
of unbiased events both in the neutrino and antineutrino channels, largely
adequate to definitely settle the origin of the observed neutrino-related
anomalies.Comment: Contribution to the European Strategy for Particle Physics - Open
Symposium Preparatory Group, Kracow 10-12 September 201
Sodium valproate in migraine without aura and medication overuse headache: A randomized controlled trial
Objective: To assess the efficacy, safety and tolerability of sodium valproate (800. mg/die) compared with placebo in medication-overuse headache patients with a history of migraine without aura. Methods: This is a multicenter, randomized, double-blind, placebo-controlled study enrolled medication-overuse headache patients for a 3-month treatment period with sodium valproate (800. mg/day) or placebo after a 6 day outpatient detoxification regimen, followed by a 3-month follow-up. Primary outcome was defined by the proportion of patients achieving âĽ50% reduction in the number of days with headache per month (responders) from the baseline to the last 4 weeks of the 3-month treatment. Multivariate logistic regression models were used on the primary endpoint, adjusting for age, sex, disease duration, comorbidity and surgery. The last-observation-carried-forward method was used to adjust for missing values. Results: Nine sites enrolled 130 patients and, after a 6-day detoxification phase, randomized 88 eligible patients. The 3-month responder rate was higher in the sodium valproate (45.0%) than in the placebo arm (23.8%) with an absolute difference of about 20% (p=0.0431). Sodium valproate had safety and tolerability profiles comparable to placebo. Conclusions: The present study supports the efficacy and safety of sodium valproate in the treatment of medication overuse headache with history of migraine after detoxification
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