Mense e personale addetto alle cucine: valutazione dei rischi occupazionali

The aim of the study is to evaluate the occupational risks among food service workers and cooks. During the occupational risks assessment the following risk factors must be evaluated: musculoskeletal disorders, chemical risk (cleaning kitchen work surface, dishes, utensils ecc.) biological risk (contact with foods or biological agents) cancerogenic risk (by baking smoke inhalation), and psycho-social stress. In this study the preventive measures and protective equipment to prevent health hazards for these workers have been evaluated (i.e. aspiration hood, adapted ventilation, chosen of less harmful methods of baking, ecc.). In particular the performance of rigid behavioural norms and hygienic procedures is very important for cooks and food service workers to reduce the risk of occupational infections

Investigation of 60 Gb/s 4-PAM Using an 850 nm VCSEL and Multimode Fiber

We investigate 4-pulse-amplitude modulation (PAM) at data rates in the range of 50-60 Gb/s using a directly modulated 850 nm VCSEL and multimode fiber links up to 200 m. The channel conditions in which 4-PAM has performance advantages over traditional ON-OFF keying are evaluated followed by experimental results at data rates of 56.7 Gb/s over distances up to 200 m using equalization and FEC, with a post-FEC bit error rate of 10(-12). The reported analysis is applicable to future Ethernet and Fibre Channel applications requiring 50 Gb/s serial data rates per lane over multimode fibers

48.7 Gb/s 4-PAM Transmission over 200 m of High Bandwidth MMF using an 850 nm VCSEL

We demonstrate 4-PAM 48.67 Gb/s transmission, using a directly modulated VCSEL, over 50, 100 and 200 m of multimode fiber with partial dispersion compensation properties. The results of our experiments indicate that 200 m reach is achievable with forward error correcting codes with small overhead

Lavoratori esposti ad inquinanti urbani.

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Effects on Plasmatic Androstenedione in Female Workers Exposed to Urban Stressors

The purpose of this study is to investigate whether occupational exposure to urban stressors can cause alterations on androstenedione plasma levels and related diseases in female traffic police compared to a control group. The research was carried out on an initial sample of 468 female workers (209 traffic police and 259 controls). After excluding the subjects with confounding factors, 192 female subjects: 96 traffic police and 96 controls were included in the study. Traffic police and controls were matched by age, length of service, body mass index, alcohol consumption and cigarette smoking habits, habitual consumption of Italian coffee, and habitual intake of soy and liquorice in diet. The results show that the percentage of subjects with fertility and mental health disorders were no different between traffic police and controls. Mean androstenedione values were significantly higher in female traffic police compared to controls. The distribution into classes of androstenedione values in traffic police was statistically significant. The percentage of traffic police with fertility and mental health disorders were not significant compared to controls. Our results suggest that the occupational exposure to urban stressors could alter plasma androstenedione levels in female traffic police. According to our previous research all the hormonal parameters studied, including androstenedione, could be used as early biological markers of chronic exposure to urban stressors, usable in occupational sets

50 Gb/s 4-PAM over 200 m of High Bandwidth MMF using a 850 nm VCSEL

Experiments for transmission of 50Gb/s, 4-PAM using direct modulated VCSEL over 100m and 200m of MMF with partial dispersion compensation properties are presented

Woman and work: risk assessment

The working environments have undergone profound changes over the years, introducing more and more the presence of women. The Employer is required to carry out the assessment of the risks present in the company and to put in place protective measures towards workers. As part of the assessment, he must identify and assess regularly all the risks and dangers deriving from the activities usually carried out by the pregnant or puerperium or breastfeeding workers up to seven months after delivery. The risk assessment must first focus on the identification of all work prohibited during pregnancy and up to seven months after delivery and must not neglect any other residual risk factors for pregnancy such as time, type of shifts, posture... For each of them optimal strategies must be developed, aimed to prevent and reduce any damage to the workers themselves. There are also examples of risks present in some of the most common work activities carried out by female workers