Una nueva especie y un nuevo registro de uredinales que parasitan a Conyza bonariensis en Colombia

A new anamorphic species of Uredinales, Aecidium convzee- colombiensis, is proposed, and another one, Caeoma cyclostoma, is recorded for the first time for Colombia. The two species parasitize Conyza bonariensis (Asteraceae).<br>Se propone una nueva especie anamórfica de Uredinales, Aecidium convzee-co-lombiensis, y se registra por primera vez en Colombia a Caeoma cyclostoma, ambas parasitas de Conyza bonariensis (Asteraceae)

Initial Delay Domain UWB Channel Characterization for In-body Area Networks

Wireless Body Area Networks (WBANs) have increased the attention of the research community for the next generation wireless medical devices. Among others, Wireless Capsule Endoscopy (WCE) aims to transmit better quality images. For this, the Ultra Wideband (UWB) frequency band is becoming a good alternative to currently allocated frequencies for in-body networks, allowing higher data rate and having a low power transmission. Common channel characterization in WBANs are performed in frequency domain, i.e., analyzing the received power as a function of frequency. Nevertheless, indepth studies in delay domain analyzing the impulse response of the channel are barely considered in current literature. In this paper, an initial study in delay domain, i.e., the Power Delay Profile (PDP) characteristics, is performed. Moreover, a comparison between the channel response in frequency and delay domain is performed. This work gives an insightful view of the impulse response of the channel for in-body to on-body communications. For that, an extensive campaign of phantom measurements and software simulations are conducted.This work was supported by the European Union’s H2020:MSCA:ITN program for the ”Wireless In-body Environment Communication- WiBEC” project under the grant agreement no. 675353. This work was also funded by by the European Union’s H2020: MSCA: ITN program for the ”mmWave Communications in the Built Environments - WaveComBE” project under the grant agreement no. 766231.Pérez-Simbor, S.; Garcia-Pardo, C.; Cardona Marcet, N. (2019). Initial Delay Domain UWB Channel Characterization for In-body Area Networks. IEEE. 1-5. https://doi.org/10.1109/ISMICT.2019.8743767S1

Especies microcíclicas de puccinia persoon sobre solanum l. en Colombia

Se registran siete especies microcíclicas de Puccinia Persoon sobre Solanum L. en Colombia. Puccinia obregonensis se propone como nueva especie y P. aulica y P. imitans se registran por primera vez en este país. Se presenta una clave de las especies colombianas de Puccinia sobre Solanum.Seven microcyclic species of Puccinia Persoon are registered in Colombia Puccinia obregonensis is proposed as new species of Uredinales on Solanum L. P. aulica and P. imitans are recorded for the first time for Colombia

Novedades para la flora uredinológica colombiana

Se adiciona para la flora uredinológica colombiana el registro de tres especies nuevas para el país y siete nuevos hospedantes para otras tantas especies ya registradas

Uredinales de la región de urabá, colombia.

Se presenta un listado parcial de colecciones de Uredinales en la región de Urabá en el noroccidente Colombiano. La información acerca de la flora de este grupo para Colombia se incrementa con nuevos registros de hospedantes, Uredinales e información sobre la distribución geográfica de las especies

Notas técnicas especies de uredinales (royas) con rara formación del estado teliomórfico en colombia.

Se registra el estado teliomórfico de varias especies de Uredinales (royas) de rara formación en Colombia. Se describen e ilustran los estados perfectos de Dicheirinia binata (Berkeley and amp; Curtis) Arthur. Puccina psidii Winter. P. pelargonii-zonalis Doidge, P.thaliae Dietel y P. menthae Persoon

Una nueva especie y un nuevo registro de uredinales que parasitan a conyza bonariensis en Colombia

Se propone una nueva especie anamórfica de Uredinales, Aecidium convzee-co-lombiensis, y se registra por primera vez en Colombia a Caeoma cyclostoma, ambas parasitas de Conyza bonariensis (Asteraceae).A new anamorphic species of Uredinales, Aecidium convzee- colombiensis, is proposed, and another one, Caeoma cyclostoma, is recorded for the first time for Colombia. The two species parasitize Conyza bonariensis (Asteraceae)

Novedades sobre la flora de Uredinales Colombianos en Poaceae

Se describen dos nuevas especies de Uredinales de Colombia, Physopella eragrostídís y P. sporoboli, y se registran cuatro nuevos hospedantes para especies ya conocidas.Two new species of Colombian Uredinales, Physopella agrostídís and P. sporoboli, are described, and four new hosts are recorded for previously known species

Analysis of the Localization Error for Capsule Endoscopy Applications at UWB Frequencies

Localization for Wireless Capsule Endoscopy (WCE) in the Ultra-Wideband frequency band is a very active field of investigation due to its potential advantages in future endoscopy applications. Received Signal Strength (RSS) based localization is commonly preferred due to its simplicity. Previous studies on Ultra-Wideband (UWB) RSS-based localization showed that the localization accuracy depends on the average ranging error related to the selected combination of receivers, which not always is the one experiencing the highest level of received power. In this paper the tendency of the localization error is further investigated through supplementary software simulations and previously conducted laboratory measurements. Two-dimensional (2D) and three-dimensional (3D) positioning are performed and the trend of the localization error compared in both cases. Results shows that the distribution of the selected path loss values, corresponding to the receivers used for localization, around the in-body position to estimate also affects the localization accuracy.This work was supported by the H2020:MSCA:ITN program for the “Wireless In-body Environment Communication- WiBEC” project under the grant agreement no. 675353. This work was also supported by the European Union’s H2020:MSCA:ITN program for the ”mmWave Communications in the Built Environments - WaveComBE” project under the grant agreement no. 766231.Barbi, M.; Pérez-Simbor, S.; Garcia-Pardo, C.; Cardona Marcet, N. (2019). Analysis of the Localization Error for Capsule Endoscopy Applications at UWB Frequencies. IEEE. https://doi.org/10.1109/ISMICT.2019.8743813

Doppler Characterization in Ultra Wideband BAN Channels During Breathing

[EN] Monitoring the physical parameters from devices inside the body, using ultra wideband (UWB) technology, enables the development of high bandwidth demanding applications in real time. The relative movement of the nodes deployed in the body, due to breathing, can give rise to a frequency shifting effect, increasing the fading level in the propagation channel during transmissions. In this article, therefore, we present a study of the frequency effects on the propagation channel derived from the relative movement between two nodes of a wireless body area network (WBAN), at least one of them placed inside the human body, caused by breathing. The study is performed on the basis of the Doppler spectrum characterization in terms of the shape fitting and frequency spread parameter derivation. Continuous wave (CW) signals have been used to cover the UWB range at four selected frequencies: 3.1, 4.8, 6, and 8.5 GHz, and a liquid phantom has been employed for emulating the dielectric properties of the high water content tissues at the considered UWB frequencies.This work was supported in part by the Ministerio de Economia y Competitividad (MINECO), Spain, under Grant TEC2016-78028-C3-2-P, in part by the European Union's H2020-MSCA-ITN Program by the "mmWave Communications in the Built Environments-WaveComBE" Project, under Grant 766231, and in part by the European FEDER funds.García-Serna, RG.; Garcia-Pardo, C.; Molina-García-Pardo, JM.; Juan Llacer, L.; Cardona Marcet, N. (2020). Doppler Characterization in Ultra Wideband BAN Channels During Breathing. IEEE Transactions on Antennas and Propagation. 68(2):1066-1073. https://doi.org/10.1109/TAP.2019.2951849S1066107368