An efficient numerical method to analyze the electromagnetic field in presence of bodies of arbitrary shape and material is presented. The method has been applied to the problem of the field distribution in the far field of a mobile phone antenna near a head and a hand of a person. Resonant microwave circuits and scattering applications demonstrate the versatility and effectiveness of the present method. Other problems have also been studied, which can be conductors, dielectrics or and arbitrary combinations of both. The procedure is based on the surface and volume equivalence principles and a Galerkin method is used to solve the integral equations. I On partial leave from:

A descriptive and cross-sectional study was performed to characterize the degree of immediate adverse reaction and the type of causative antineoplastic drug presented by 371 different patients treated for cancer at the oncology day hospital unit of the San Carlos Clinical Hospital (Madrid, Spain), during the period between January 2015 and December 2019. In the case series, 488 immediate adverse reactions secondary to chemotherapy toxicity were detected. The dominating factors were: Female sex, age from 51-70 years old, skin melanoma and the use of vinca alkaloids and analogs. Among the most frequent adverse reactions, the following stood out: Disorders of the nervous and musculoskeletal systems and of the connective tissue. There was a higher number of moderate adverse reactions (grade 2 according to the Common Terminology Criteria for Adverse Events Version 4.0) between the first and third chemotherapy cycles, with a latency period of between 6 and 15 min., generally lasting less than 30 min. Association with the degree of immediate adverse reaction (grade) has been observed in male subjects over 71 years of age, with soft tissue neoplasm type and monoclonal antibodies therapeutic group.

Background As a respiratory disease, the transmission of Coronavirus disease (COVID-19) is mainly caused by small droplets and aerosols. Healthcare personnel are particularly exposed during otologic surgery given the continuity with the nasopharynx, where the viral load is high, and the use of high-speed instruments. The purpose of the present study is to test a model of droplet dispersion produced in the performance of a drilling procedure on human bone to provide information about its distribution and size of the deposit in similar conditions to those of an operating theatre, to design different preventive measures. Material and method A mastoidectomy and trans -labyrinthine approach were performed on an embalmed human corpse using for irrigation during drilling methylene blue dye in physiological saline solution (pss) at a concentration of 0.324 mg/mL. The distribution of the drops was stablished using semi-absorbent papers of size 52 cm × 42 cm covering the area around the dissection field to a radius of 150 cm and on the corpse at different heights to check vertical dispersion. The collected deposit material was analysed with the microscope at different magnification objectives. Results Droplets between 2 μm and 2.6 cm were obtained. The visualization of the coloured droplets in the horizontal plane at a magnification of 1.5 was detected at 150 cm from the focus of emission of milling particles. Discussion According to our study, bone drilling with high speed motors under continuous saline irrigation in a haemorrhagic surgical field increases the amount of aerosols exposing healthcare personnel to additional airbone particles. This risk does not end in the operating rooms as particles smaller than 2 μm can be suspended in the air for hours and could exit the operating theatre due to the use of positive pressure systems. Thus, the use of N95, FFP2, FFP3 or PAPRS should be considered and the development of hood systems to prevent the dispersion of aerosols during these procedures should be considered.