The Experts below are selected from a list of 117 Experts worldwide ranked by ideXlab platform
Peter A. Philipsen - One of the best experts on this subject based on the ideXlab platform.
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a handful of sunscreen for whole Body Application
Advances in Experimental Medicine and Biology, 2020Co-Authors: Ida M. Heerfordt, Peter A. PhilipsenAbstract:BACKGROUND The rule of thumb "Fill up a handful of sunscreen and spread it all over your Body" has been used in several sun safety campaigns. The intention was to increase the applied sunscreen to obtain a quantity of 2 mg/cm2 to all accessible skin. The present study is the first to investigate how this advice works in practice, evaluated by quantity of sunscreen applied and amount of covered skin. METHODS Seventeen volunteers wearing swimwear were asked to "Fill up a handful and spread it all over your Body." Before and after sunscreen Application, the volunteers were photographed in black light. As sunscreen absorbs black light, the darkness of the skin increases with increasing amounts of applied sunscreen, making it possible to identify skin left without coverage. The sunscreen container was weighed before and after to quantify the amount of sunscreen applied. RESULTS A median of 21% of the accessible skin was left completely without coverage. The 79% covered area was covered with a median of 1.12 mg/cm2, not the expected 2 mg/cm2. CONCLUSION In practice, the advice "Fill up a handful of sunscreen and spread it all over your Body" led to a better but still modest protection, compared to the intended effect.
Maxim Zhadobov - One of the best experts on this subject based on the ideXlab platform.
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Impact of Antenna Topology and Feeding Technique on Coupling With Human Body: Application to 60-GHz Antenna Arrays
IEEE Transactions on Antennas and Propagation, 2017Co-Authors: Carole Leduc, Maxim ZhadobovAbstract:The 60-GHz band has been identified as an attractive solution for the next-generation mobile networks (5G) as well as for Body-centric Applications. This paper provides a quantitative comparative analysis of electromagnetic exposure and heating induced by 60-GHz Body-mounted antennas. Near-field interaction between representative antenna arrays for off-Body communications with three feeding topologies and human Body is compared in terms of matching and radiation, as well as in terms of user exposure. The presence of a ground plane results in exposure reduction by more than 70 and 8 times in terms of peak and averaged levels, respectively. Designs allowing to avoid grating lobes allow further reduction of exposure. For considered antenna arrays operating at the maximum allowable power, International Commission on Non-Ionizing Radiation Protection occupational exposure limits are not exceeded. However, only the antennas with a ground plane comply with general public limits. Resulting heating is quantified for on-Body millimeter-wave antennas. Detailed analysis is performed for acute and disperse exposures. Numerical results are validated by measurements. Effect of averaging is also investigated. For antennas with a ground plane, heating (typically of several tenths of degrees C) remains within environmental temperature fluctuations. However, the antennas without a ground plane can induce heating locally exceeding 10 degrees C.
Ida M. Heerfordt - One of the best experts on this subject based on the ideXlab platform.
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a handful of sunscreen for whole Body Application
Advances in Experimental Medicine and Biology, 2020Co-Authors: Ida M. Heerfordt, Peter A. PhilipsenAbstract:BACKGROUND The rule of thumb "Fill up a handful of sunscreen and spread it all over your Body" has been used in several sun safety campaigns. The intention was to increase the applied sunscreen to obtain a quantity of 2 mg/cm2 to all accessible skin. The present study is the first to investigate how this advice works in practice, evaluated by quantity of sunscreen applied and amount of covered skin. METHODS Seventeen volunteers wearing swimwear were asked to "Fill up a handful and spread it all over your Body." Before and after sunscreen Application, the volunteers were photographed in black light. As sunscreen absorbs black light, the darkness of the skin increases with increasing amounts of applied sunscreen, making it possible to identify skin left without coverage. The sunscreen container was weighed before and after to quantify the amount of sunscreen applied. RESULTS A median of 21% of the accessible skin was left completely without coverage. The 79% covered area was covered with a median of 1.12 mg/cm2, not the expected 2 mg/cm2. CONCLUSION In practice, the advice "Fill up a handful of sunscreen and spread it all over your Body" led to a better but still modest protection, compared to the intended effect.
Salvatore Venticinque - One of the best experts on this subject based on the ideXlab platform.
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WOMPAT - Performance analysis of hybrid OpenMP/MPI n-Body Application
Lecture Notes in Computer Science, 2005Co-Authors: Rocco Aversa, Beniamino Di Martino, Nicola Mazzocca, Salvatore VenticinqueAbstract:In this paper we show, through a case-study, how the adoption of the MPI model for the distributed parallelism and OpenMP parallelizing compiler technology for the inner shared memory parallelism, allows to yield a hierarchically distributed-shared memory implementation of an algorithm presenting multiple levels of parallelism. The chosen Application solves the well known N-Body problem.
A-m Heuchan - One of the best experts on this subject based on the ideXlab platform.
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O8 Suppressed vancomycin reaction in a patient receiving parenteral corticosteroids
Archives of Disease in Childhood, 2019Co-Authors: Peter Mulholland, A-m HeuchanAbstract:Background A baby boy, (37 +6 weeks, 3 kg) was admitted on day 1 of life with an ante-natal diagnosis of a right side congenital diaphragmatic hernia (CDH). The patient was commenced on Extra Corporeal Membrane Oxygenation (ECMO), inhaled nitric oxide and parenteral nutrition. Baby was commenced on morphine, midazolam, vecuronium, dopamine, milrinone and adrenaline infusions. In addition to routine empirical antibiotics hydrocortisone at a dose of 2.5 mg/kg four times daily was commenced to treat hypotension. On day 8 a continuous vancomycin infusion was commenced in line with the network protocol.1 Two days later the infusion was stopped after a level of 41 mg/L aws recorded (therapeutic range 15–25 mg/L). Treatment was recommenced at a lower rate and all following levels were within normal limits. On day 20 of life the patient was noted to have a widespread maculopapular erythematous rash which was most florid on the upper chest, feet and hands. The patient was apyrexial but had a persistently raised CRP. A dermatology review was undertaken and the patient was prescribed a total Body Application of Daktacort cream. The clinical pharmacist also suggested, and prescribed, a one off dose of alimemazine. The following day the rash had become progressively worse and the possibility of a vancomycin reaction was considered. An internet image search showed that the rash was typical of vancomycin. The most common reaction to vancomycin is ‘red man syndrome’2 however this is associated with rapid infusion at a rate greater than 10 mg/min. Patient’s vancomycin rate was equivalent to 2 mg/hour (0.035 mg/minute). Following discussion with microbiology treatment was changed from vancomycin to linezolid. Investigations A review of the patient’s medication history showed a total of 11 different continuous drug infusions and six intermittent medicines. It was noted that the hydrocortisone, which had been weaning over a period of 14 days had been discontinued four days prior to the initial presentation of the rash. Outcome Four days after cessation of the vancomycin infusion the rash had resolved. A yellow Card detailing the reaction was completed. We have since had a second patient with a similar rash appearing two days following cessation of hydrocortisone treatment. Discussion In seven years of using continuous vancomycin infusion in neonates we had never encountered this type of reaction in neonates. Given the proximity between the cessation of steroid treatment and the appearance of the rash, together with the rash resolving following cessation of vancomycin treatment it is likely that this was a true reaction to the drug. The possibility of a suppressed ‘red man’ type reaction to vancomycin should be considered in babies receiving concurrent steroid treatment. References West of Scotland Neonatal Managed Clinical Networks Drug Monographs. http://www.knowledge.scot.nhs.uk/ (accessed August 2018) Summary of product characteristics – Vancomycin infusion. http://www.medicines.org.uk/ (accessed August 2018)