Results 161 to 170 of about 117,598 (307)

Efectos de la contaminación atmosférica sobre la salud: una introducción

Revista Española de Salud Pública, 1999
En los últimos años ha habido un gran avance en el conocimiento y comprensión de los efectos de la contaminación atmosférica. En este trabajo se establecen sus conceptos fundamentales y se revisan las diferentes aproximaciones metodológicas posibles ...
Ballester Díez Ferran, Tenías José María, Pérez-Hoyos Santiago   +2 more
doaj  

Bases de datos para series temporales: estudio

, 2023
En este Trabajo de Fin de Grado se desarrolla un estudio teórico sobre las series temporales, los tipos que hay y componentes, así como en las bases de datos orientadas a series temporales, presentando una revisión de los sistemas de bases de datos disponibles, viendo qué características tienen, y posteriormente profundizar en los casos de InfluxDB y ...
openaire   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Sensitized Triplet Exciton Generation in Nanostructured Polymer Scintillators: Toward Improved γ/Neutron Discrimination

Advanced Functional Materials, EarlyView.
Rapid γ/neutron discrimination through PSD is achieved in liquid droplet containing nanostructured polymeric scintillator where a TTA‐active dye is dissolved. The inclusion of a properly selected and dosed sensitizer metalated porphyrin enhances discrimination sensitivity and speed by doubling the density of annihilating triplets and increasing the ...
Luca Pollice, Xueqian Hu, Letizia G. Tedoldi, Andrea Erroi, Davide Rigamonti, Marco Tardocchi, Davide Bortot, Andrea Pola, Christoph Weder, Angelo Monguzzi   +9 more
wiley   +1 more source

Orofacial clefts in newborns in Brazil: a time series study, 2010-2021. [PDF]

Epidemiol Serv Saude
Vieira KM, Menezes VC, Cardoso-Dos-Santos AC, Franco ALMM, Carvalho FM, Faccini LS, Iser BPM.   +6 more
europepmc   +1 more source

Interrupted time-series analysis of active case-finding for tuberculosis during the COVID-19 pandemic, Zambia. [PDF]

Bull World Health Organ, 2022
Lungu PS, Kerkhoff AD, Muyoyeta M, Kasapo CC, Nyangu S, Kagujje M, Chimzizi R, Nyimbili S, Khunga M, Kasese-Chanda N, Musonda V, Tambatamba B, Kombe CM, Sakulanda C, Sampa K, Silumesii A, Malama K.   +16 more
europepmc   +1 more source

Análisis de series temporales pluviométricas en la Cuenca del Duero [PDF]

Time series of monthly rainfall values, given in mm/m2, for eight stations in the Spanish Duero river basin are analysed. They have been recorded during a long period of time, ranging from 83 to 140 years.
Herrero, Miguel A., Álvarez, Rodrigo
core   +1 more source

Multi‐Functional ZnO–Te Heterojunction Devices Enabling Compact Frequency Quadrupler

Advanced Functional Materials, EarlyView.
Wafer‐scale ZnO–Te heterojunction devices featuring tunable double negative differential transconductance (D‐NDT) are demonstrated at ≤ 200°C. Leveraging this unique characteristic, a single‐stage frequency quadrupler is realized, achieving a 64%–75% reduction in device count.
Jae Hyeon Jun, Byeong Gwan Kim, Min Seo Kang, Ui Gwan Shin, Minjae Kim, Kiyung Kim, Hae‐Won Lee, Yongsu Lee, Byoung Hun Lee   +8 more
wiley   +1 more source

Reports of violence against transvestites and transsexuals: a time series study, Brazil, 2015-2022. [PDF]

Epidemiol Serv Saude
Rios EB, Costa ST, Ribeiro MDA, Maia LC, Costa SM.   +4 more
europepmc   +1 more source

Predicción de series temporales con redes neuronales

, 2021
Hay una gran cantidad de reportes en la literatura en los que se realizan experimentos sobre distintos conjuntos de datos verificando la performance de las redes neuronales para tareas predictivas. Los estudios coinciden en que los resultados son muy prometedores pero las conclusiones obtenidas al comparar este tipo de métodos con los estadísticos son ...
openaire   +1 more source