Search results for "error"

Performance Study of Non-beaconed and Beacon-Enabled Modes in IEEE 802.15.4 under Bluetooth Interference

2008

The IEEE 802.15.4 protocol is a flexible technology with great potential for wireless sensor networks applications. The standard distinguishes two network modes; beacon-enabled and nonbeacon-enabled. In this paper, the performance study of beaconed and non-beaconed modes of IEEE 802.15.4 is evaluated using on site PER measurements. The tests are carryout in an urban outdoor environment with commercial available equipment. Likewise, the impact of Bluetooth interference over IEEE 802.15.4 modes is evaluated. The results show that Bluetooth interference and the mode selected have effects over the PER. Furthermore, for distances between 3 to 10 meters the PER doesn't show significance distance …

Riesgo de errores de medicación y conocimientos de farmacología del profesional de enfermería en una unidad de cuidados críticos

2017

La farmacoterapia no está exenta de riesgos para los pacientes, puede generarle una serie de daños, ya sean de naturaleza iatrogénica inherente al medicamento o como consecuencia de errores cometidos durante los procesos que componen el complejo sistema de utilización de medicamentos en los hospitales. Conocemos que los efectos adversos en España presentan una incidencia del 8,4%, siendo los más comunes los errores de medicación (37,4%). Estos datos se desprenden de grandes estudios nacionales multicéntricos, pero en cambio, no se conoce, o se estudia de manera escasa la magnitud y naturaleza de los errores de medicación que ocurren en el día a día en la práctica clínica, o si existen unida…

Early-design improvement of human reliability in an experimental facility: A combined approach and application on SPES

2019

Abstract SPES (Selective Production of Exotic Species) is a second-generation Isotope Separation On-Line (ISOL) facility for advanced nuclear physics applications, currently under construction at INFN (National Institute of Nuclear Physics) of Legnaro, Italy. Despite the potentially important safety implications of human errors for ISOL facilities, only a limited number of studies addressing this issue have been performed worldwide. This paper tries to address this need by means of an integrated approach of Hierarchical Task Analysis (HTA) and three human error quantification methods: HEART (in an enhanced version), SPAR-H, and CREAM. The application of multiple Human Reliability Analysis (…

The Society 4.0, Internet, Tourism and the War on Terror

2019

The 9/11 marked the end of an epoch, or so it is claimed by many voices. Scholars and colleagues of all stripes agree that the attacks on the World Trade Center changed international relations and geopolitics as never before. In this context, this chapter interrogates the ramifications of terrorism, its connection with media society and with Society 4.0. As Slavoj Žižek puts it, 9/11 was not only a founding event, but it also woke the Occident from its slumber. In view of this, terrorism paradoxically not only uses the media and digital technologies to instil its message in society, but alerts us to the risks posed by virtuality. This chapter, henceforth, continues Žižek’s reflections unvei…

Naciones Unidas / 1. El naufragio

2005

Velando armas

2002

A New Fitness Test of Estimating VO2max in Well-Trained Rowing Athletes

2021

BackgroundThis study was designed to investigate the validity of maximal oxygen consumption (VO2max) estimation through the Firstbeat fitness test (FFT) method when using submaximal rowing and running programs for well-trained athletes.MethodsWell-trained flatwater rowers (n = 45, 19.8 ± 3.0 years, 184 ± 8.7 cm, 76 ± 12.9 kg, and 58.7 ± 6.0 mL⋅kg–1⋅min–1) and paddlers (n = 45, 19.0 ± 2.5 years, 180 ± 7.7 cm, 74 ± 9.4 kg, and 59.9 ± 4.8 mL⋅kg–1⋅min–1) completed the FFT and maximal graded exercise test (GXT) programs of rowing and running, respectively. The estimated VO2max was calculated using the FFT system, and the measured VO2max was obtained from the GXT programs. Differences between the…

Visual and optical performance with hybrid multifocal intraocular lenses

2010

During the past years, the wish to become independent of spectacles has been growing among cataract and presbyopic patients due to many factors, such as the increase in near visual demands, the aesthetic need for a spectacle-free image and ageing of refractive surgery patients, among others. This review assesses recently published studies that analyse visual and optical performance through different metrics of eyes implanted with multifocal intraocular lenses (IOLs), particularly hybrid IOL designs. The published evidence suggests that hybrid multifocal IOLs provide very good outcomes in a number of visual and optical performance parameters. Patients implanted with this type of IOL obtain a…

Characterization of impervious layers using scale models and an inverse method

2009

We describe a novel procedure that uses an inverse method to determine unknown parameters for impervious layers used in multilayer structures. The proposed model of the multilayer structure is limited to an ideal double plate separated by an unbonded, fibrous, sound-absorbing material. Experimental data were obtained by nearfield acoustic holography for the calculation of the transmission loss of various multilayer structures mounted in a window in a wooden box designed specifically for this purpose. We used the Trochidis and Kalaroutis forecast model of acoustic insulation for multilayer structures, which is based on a spatial Fourier transform. The experimental pressure and velocity data …

L'islam tra "fondamentalismo" e diritti dell'uomo

2019

I fatti recenti legati alla ripresa del fondamentalismo/terrorismo islamico e l'ondata di attentati e di persecuzioni contro i cristiani in giro per il mondo hanno sollecitato una nuova discussione critica, in particolare in Europa, in ordine alla compatibilità dell'Islam con i principi della modernità e dello Stato liberal-democratico.