Search results for "SAF"

A LC/MS/MS method for the simultaneous quantification of free and masked fumonisins in maize and maize-based products

2008

An LC-ESI-MS/MS method for the simultaneous detection of the main fumonisins and their hydrolysed derivatives is described, allowing for a simplified sample preparation without previous clean up. The method has a very low quantification limit (10 µg/kg for FB1, 12 µg/kg for FB2 and FB3, 70 µg/kg for HFB1, HFB2 and HFB3 in maize flour) and a very good recovery for all the analytes. The method has been applied to check several maize-based foods for the presence of free and bound forms of fumonisins, the latter being determined after alkaline hydrolysis as hydrolysed derivatives. Bound fumonisins were found to be present not only in thermally treated maize-based products but also in mild proc…

Chronic exposure to a GSM-like signal (mobile phone) does not stimulate the development of DMBA-induced mammary tumors in rats: results of three cons…

2002

Certain epidemiological and experimental studies raised concerns about the safety of radiofrequency (RF) electromagnetic fields because of a possible increased risk of leukemia and lymphoma. In this study, an RF field used in mobile telecommunication was tested using 7,12-dimethylbenz[a]anthracene (DMBA)-induced mammary tumors in female Sprague-Dawley rats as a model for human breast cancer. Three experiments were carried out under strictly standardized conditions and were started on the same day of three consecutive years. The field consisted of a GSM-like signal (900 MHz pulsed at 217 Hz, pulse width 577 micros) of relatively low power flux density (100 microW/cm(2) +/- 3 dB) and was appl…

Spain: commercialization drives public debate and precaution

2000

Since the commercialization of genetically modified (GM) crops and foods in Spain in 1996, these products have become a topic of public concern and conflict. Several important social protagonists from science, industry and civil society have become involved in the public debate. The conflicts have influenced the regulation, improving its precautionary content, in response to social pressures in Spain and elsewhere in Europe. As Spain has become the primary cultivator of GM crops in the European Union, commercial cultivation there has been scientifically monitored for possible long-term environmental effects. Regulators have also asked industry to cease using antibiotic-resistant marker gene…

What distance do university students walk and bike daily to class in Spain

2016

Abstract Introduction Physical activity levels are low in the general population and these levels decrease from childhood to adolescence, as well as from adolescence to adulthood. Active commuting (AC) is an opportunity to increase the physical activity levels. The distance between home and destinations is a main correlate of AC; however, the distance that university students walk or cycle to university is unknown. Methods Participants self-reported their modes and time of commuting to and from university in a questionnaire, and the main mode of commuting was identified. Moreover, they reported their home address, and the Spanish version of Mapquest software was used to measure street-netwo…

A Study on Outdoor and Indoor Climate to satisfy particular Requisites in Museum. The case of the Punic Ship in the Marsala's Archaeological Museum

2003

In the Archaeological Museum in Marsala are keept many archaeological finds discovered in the sea near the city. The most important is the wooden hull of an ancient punic ship found some years ago. The rests of the ship have been submitted to impregnation with PEG, to eliminate the water and the salts absorbed the sea mud, and then is exposed inside a protective awning of plastic material, build up in one of the rooms, in order to contain as much as possible the indoor climatic variations. The responsibles of the museum wants now expose the finds in an free environment in which fixed and steady conditions can be kept. The authors have been requested to study an air condition system that can…

Canakinumab in Systemic Juvenile Idiopathic Arthritis: Clinical Inactive Disease Rate and Safety in Italian Patients

2020

Introduction: Systemic juvenile idiopathic arthritis (sJIA) accounts for 10-20% of all patients with JIA. The demonstration of a key role of IL-1 and IL-6 in the pathogenesis of the disease, led to consider sJIA an autoinflammatory disease: this explain the successfully use of IL-1 and IL-6 inhibitors. While the efficacy and safety of anakinra in sJIA is widely documented, there are no reports on large series of patients treated with canakinumab outside of the setting of clinical trials. Objectives: The aim of this study was to evaluate clinical response rate and disease course of canakinumab in Italian cohort of patients with sJIA. Methods: This is a retrospective multicenter study. Demogr…

PRELIMINARY COMPARISON FOR GENES INVOLVED IN BIOFILMS IN COAGULASE-NEGATIVE STAPHYLOCOCCI (CONS) AND S. AUREUS STRAINS ISOLATED FROM MILK SAMPLES OF …

2013

The Interaction Between Physical and Psychosocial Stressors

2020

Do physical and psychosocial stressors interact to increase stress in ways not explainable by the stressors alone? A preliminary study compared participants’ stress response while subjected to a physical stressor (reduced or full physical load) and a predetermined social stressor (confronted by calm or aggressive behavior). Salivary cortisol samples measured endocrine stress. Heart rate variability (HRV) and electrodermal activity (EDA) measured autonomic stress. Perceived stress was measured via discomfort and stress state surveys. Participants with a heavier load reported increased distress and discomfort. Encountering an aggressive individual increased endocrine stress, distress levels, …

Effect of Nitrogen Fertilization on the Quality of Swiss Chard at Harvest and during Storage as Minimally Processed Produce

2014

The effects of different levels of nitrogen fertilization (0–50–100–150–200 kg/ha), minimal processing and cold storage (14 days at 4C) on yield and quality of fresh-cut Swiss chard (Beta vulgaris L. var. cicla L.) were evaluated. Increasing the level of nitrogen fertilization over 100 kg N/ha, plants had a higher fresh weight, reduced their dry matter content and resulted taller and leafier. Total and marketable yield increased linearly with increasing nitrogen level. Both nitrate and ascorbic acid content at harvest increased with increasing nitrogen supply. Nitrogen fertilization negatively affected the yield of minimal processing. No effect on appearance and quality loss during cold sto…

Behavior of four main dairy pathogenic bacteria during manufacturing and ripening of pecorino siciliano cheese

2020

Background: Consumption of raw cheese may be associated with different diseases. This study aimed to evaluate behavior of four pathogenic bacteria during manufacture and ripening of Protected Designation of Origin (PDO) Pecorino Siciliano cheese.
 Methods: The experimental cheese groups were inoculated with pathogenic bacteria, including Escherichia coli O157, Listeria monocytogenes, Salmonella Enteritidis, and Staphylococcus aureus. The cheese making processes were monitored from milk curdling until 3 months ripened cheeses and the levels of Lactic Acid Bacteria (LAB) and the four dairy pathogens were evaluated by plate counts. Randomly Amplified Polymorphic DNA (RAPD)-Polymerase Chai…