La nueva novela espanola : Diario de un hombre humillado

Escudero, Clara Pascual 한국서어서문학회 1998 스페인어문학 Vol.12 No.1

An Indoor Positioning Method using IEEE 802.11 Channel State Information

Escudero, Giovanni,Hwang, Jun Gyu,Park, Joon Goo The Korean Institute of Electrical Engineers 2017 Journal of Electrical Engineering & Technology Vol.12 No.3

In this paper, we propose an indoor positioning system that makes use of the attenuation model for IEEE 802.11 Channel State Information (CSI) in order to determine its distance from an Access Point (AP) at a fixed position. With the use of CSI, we can mitigate the problems present in the use of Received Signal Strength Indicator (RSSI) data and increase the accuracy of the estimated mobile device's location. For the experiments we performed, we made use of the Intel 5300 Series Network Interface Card (NIC) in order to receive the channel frequency response. The Intel 5300 NIC differs from its counterparts in that it can obtain not only the RSSI but also the CSI between an access point and a mobile device. We can obtain the signal strengths and phases from subcarriers of a system which in turn means making use of this data in the estimation of a mobile device's position.

Cerebral Edema in Patients with Severe Hemispheric Syndrome: Incidence, Risk Factors, and Outcomes―Data from SITS-ISTR

Irene Escudero-Martínez,Magnus Thorén,Peter Ringleb,Ana Paiva Nunes,Manuel Cappellari,Viiu-Marika Rand,Piotr Sobolewski,Jose Egido,Danilo Toni,Shih-Yin Chen,Nicole Tsao,Niaz Ahmed 대한뇌졸중학회 2023 Journal of stroke Vol.25 No.1

Background and Purpose Cerebral edema (CED) in ischemic stroke can worsen prognosis and about 70% of patients who develop severe CED die if treated conservatively. We aimed to describe incidence, risk factors and outcomes of CED in patients with extensive ischemia. Methods Oservational study based on Safe Implementation of Treatments in Stroke-International Stroke Treatment Registry (2003–2019). Severe hemispheric syndrome (SHS) at baseline and persistent SHS (pSHS) at 24 hours were defined as National Institutes of Health Stroke Score (NIHSS) >15. Outcomes were moderate/severe CED detected by neuroimaging, functional independence (modified Rankin Scale 0–2) and death at 90 days. Results Patients (n=8,560) presented with SHS and developed pSHS at 24 hours; 82.2% received intravenous thrombolysis (IVT), 10.5% IVT+thrombectomy, and 7.3% thrombectomy alone. Median age was 77 and NIHSS 21. Of 7,949 patients with CED data, 3,780 (47.6%) had any CED and 2,297 (28.9%) moderate/severe CED. In the multivariable analysis, age <50 years (relative risk [RR], 1.56), signs of acute infarct (RR, 1.29), hyperdense artery sign (RR, 1.39), blood glucose >128.5 mg/dL (RR, 1.21), and decreased level of consciousness (RR, 1.14) were associated with moderate/severe CED (for all P<0.05). Patients with moderate/severe CED had lower odds to achieve functional Independence (adjusted odds ratio [aOR], 0.35; 95% confidence interval [CI], 0.23 to 0.55) and higher odds of death at 90 days (aOR, 2.54; 95% CI, 2.14 to 3.02). Conclusion In patients with extensive ischemia, the most important predictors for moderate/ severe CED were age <50, high blood glucose, signs of acute infarct, hyperdense artery on baseline scans, and decreased level of consciousness. CED was associated with worse functional outcome and a higher risk of death at 3 months.

An Indoor Positioning Method using IEEE 802.11 Channel State Information

Giovanni Escudero,Jun Gyu Hwang,Joon Goo Park 대한전기학회 2017 Journal of Electrical Engineering & Technology Vol.12 No.3

In this paper, we propose an indoor positioning system that makes use of the attenuation model for IEEE 802.11 Channel State Information (CSI) in order to determine its distance from an Access Point (AP) at a fixed position. With the use of CSI, we can mitigate the problems present in the use of Received Signal Strength Indicator (RSSI) data and increase the accuracy of the estimated mobile device’s location. For the experiments we performed, we made use of the Intel 5300 Series Network Interface Card (NIC) in order to receive the channel frequency response. The Intel 5300 NIC differs from its counterparts in that it can obtain not only the RSSI but also the CSI between an access point and a mobile device. We can obtain the signal strengths and phases from subcarriers of a system which in turn means making use of this data in the estimation of a mobile device’s position.

Mediterranean Diet and Physical Activity Protect from Silent Brain Infarcts in a Cohort of Patients with Atrial Fibrillation

Irene Escudero-Martínez,Fernando Mancha,Ángela Vega-Salvatierra,María Irene Ayuso,Rafael F. Ocete,Pilar Algaba,Antonio López-Rueda,Pilar Piñero,Elena Fajardo,José Román Fernández-Engo,Eva María Martín 대한뇌졸중학회 2019 Journal of stroke Vol.21 No.3

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Purple Corn (Zea mays L.) Phenolic Compounds Profile and Its Assessment as an Agent Against Oxidative Stress in Isolated Mouse Organs

Fernando Ramos-Escudero,Ana Marı´a Mun˜oz,Carlos Alvarado-Ortı´z,Angel Alvarado,Jaime A. Ya´n˜ez 한국식품영양과학회 2012 Journal of medicinal food Vol.15 No.2

This study was designed to determine the contents of total polyphenols, flavonoids, flavonols, flavanols, and anthocyanins of purple corn (Zea mays L.) extracts obtained with different methanol:water concentrations, acidified with 1% HCl (1 N). Another objective was to determine the antioxidant activity by 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,20-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), ferric reducing antioxidant power (FRAP), and deoxyribose assay, individual phenolic compounds by high-performance liquid chromatography (HPLC), and endogenous antioxidant enzyme (superoxide dismutase [SOD], catalase [CAT], and total peroxidase [TPX]) activity and lipid peroxidation activity (thiobarbituric acid–reactive substances [TBARS] assay) in isolated mouse organs. Overall, the highest total content of polyphenols, anthocyanins,flavonoids, flavonols, and flavanols was obtained with the 80:20 methanol:water extract, acidified with 1% HCl (1 N). The 50%inhibitory concentration values obtained by the DPPH and ABTS assays with this extract were 66.3 lg/mL and 250 lg/mL,respectively. The antioxidant activity by the FRAP assay was 26.1 lM Trolox equivalents/g, whereas the deoxyribose assay presented 93.6% inhibition. Because of these results, the 80:20 methanol:water extract, acidified with 1% HCl (1 N), was used for the remaining tests. Eight phenolic compounds were identified by HPLC: chlorogenic acid, caffeic acid, rutin, ferulic acid, morin,quercetin, naringenin, and kaempferol. Furthermore, it was observed that the purple corn extract was capable of significantly reducing lipid peroxidation (lower malondialdehyde [MDA] concentrations by the TBARS assay) and at the same time increasing endogenous antioxidant enzyme (CAT, TPX, and SOD) activities in isolated mouse kidney, liver, and brain. On the basis of the results, it was concluded that the purple corn extract contained various bioactive phenolic compounds that exhibited considerable in vitro antioxidant activity, which correlated well with the decreased MDA formation and increase in activity of endogenous antioxidant enzymes observed in the isolated mouse organs. This warrants further in vivo studies with purple corn extracts to assess its antioxidant activity and other bioactivities.

Characterization of Tribocorrosion Behaviour of CoCr Alloy by Electrochemical Techniques in Several Corrosive Media

( M. L. Escudero ),( I. Diaz ),( J. F. Martinez Lerma ),( R. Montoya ),( M. C. Garcia-alonso ) 한국부식방식학회(구 한국부식학회) 2018 Corrosion Science and Technology Vol.17 No.2

Substitution of hip and knee joints by CoCr alloys is in great demand due to their high wear resistance and good biocompatibility. Understanding of tribocorrosion in joint replacements requires study of variables such as coefficient of friction and the choice of a proper corrosive medium in wear-corrosion tests carried out in the lab. The objective of this study was to characterize tribocorrosion behaviour of CoCr alloy with low (LCCoCr) and high carbon (HCCoCr) contents in several corrosive media: NaCl, Phosphate Buffer Solution (PBS), and PBS with hyaluronic acid (PBS-HA). Tribocorrosion tests were carried out on a pin-on-disk tribometer with an integrated electrochemical cell. A normal load of 5N was applied on the alumina ball counterpart at a rotation rate of 120 rpm. Coefficient of friction (COF) was measured and tribocorrosion behaviour was characterized by in situ application of electrochemical techniques. HCCoCr alloy immersed in PBS-HA showed the best tribocorrosion behaviour with the lowest COF. In this case, in situ measurement of corrosion potential and the impedance data under wear corrosion process showed an active state while passive film was continuously destroyed without possibility of regeneration.

좌절의 학습 ( El aprendizaje de la decepcion ) 에 있어서 문학과 예술

(Clara Pascual Escudero) 한국스페인어문학회 1999 스페인어문학 Vol.14 No.1

시, 소설 그리고 산문에 걸친 F. de Azu`a의 모든 글들은 한 테마로 특징지어질 수 있다 : 예술, 예술의 본질, 예술을 창조하는 인물, 지식인. 이 모든 것에서 Azu`a는 부르조아를 자극했던 전위작가들의 문체를 떠오르게하는 작가이다. 어떤면에 있어서 예술 비평가로서의 역할을 한다. 그는 $quot;유럽의 지적 지도층$quot;의 몰락, 현대 예술의 끝, $quot;예술 혁명$quot;의 도래등을 예견한다. 18세기말부터 풍미되었던 예술의 개념에 대한 그의 통렬한 비판은 세기초 전위작가들과는 상이한 면을 보인다. 예술을 부르조아의 사회 역사적 산유물이라고 비판함에도 불구하고, 그가 보여주는 혁신은 보수성을 지닌다:그는 200년동안 지배되어온 백과전서파에 의해 보급된 현대적 예술 체제를 복원하려한다. 작가는 $quot;예술은 그 성과가 너무 짐스러워 죽어버렸다$quot;고 말하면서, 천재적 예술가들의 출현과 헤겔의 역사 이성의 미학이 현대예술의 자기파멸의 두 요인이 되었다고 주장한다. 따라서 작가는, 예외적 인물도 아니고 역사도 아닌, 하나의 주관적이고 반역사적인 예술을 부활시킨다. 이를 위한 그 원천으로서, 미, 정확성, 진실에 가치를 둔 지적경향에 대립하여, 풍부한 경험에 기초한 자연주의적 개념을 도입한다. 이에 따라, 인간의 현실적 요구들을 외면하는 스콜라적인 학문 예술의 경향에 대한 그의 반작용은 소설의 개념을 $quot;기억의 예술$quot;로서 설명한다. 그러나 그의 생각은 과거를 지워버릴수는 없다는 것을 의식하는데서 오는 모호성으로 특징지어질 수 있다. 그러므로 그의 자연주의적 제시는 좌절되며, 예술언어로서만 흡수되어버린다.

Reproductive aspects of the Amazon giant paiche (Arapaima gigas): a review

Marie Anne Gálvez Escudero,Anthony Jesús Mendoza De La Vega 한국수산과학회 2024 Fisheries and Aquatic Sciences Vol.27 No.2

Paiche (Arapaima gigas), is a colossal freshwater fish native to the Amazon basin. Its geographic distribution spans various regions, including Brazil, Peru, Colombia, and Guyana, making it a significant component of the aquatic ecosystems in this area. Beyond its ecological role, the paiche holds substantial importance as a valuable fish resource for local communities, providing sustenance and economic opportunities. This review provides a comprehensive analysis of the reproductive aspects of the paiche, based on information published from January 2000 to January 2022. It encompasses a wide range of reproductive characteristics, including sexual differentiation, age at first maturity, and identification techniques. Additionally, it offers an evaluation of various mating behaviors, highlighting their respective advantages and disadvantages. The review also explores genetic and behavioral traits observed in both wild and captive specimens, offering valuable insights for the effective management of breeding programs.

A New CAD Environment for Benchmarks of Analog Circuit Sizing Tools and Algorithms

Marin,David,Escudero,Juan,Oliver,Joan,Flandre,Denis 대한전자공학회 1997 ICVC : International Conference on VLSI and CAD Vol.5 No.1

This paper presents a new open environment for the design of analog circuits exchanging information from existing tools. The main features of these tools have been extended in CONNAN by means of a netlist analyzer, the interaction with a commercial CAD tool and a transistor model manager that solves some common problems of sizing tools based on electrical simulators. As an initial test CONNAN is applied to the sizing of analog IC based on electrical simulators and simulated annealing algorithms.