Results 31 to 40 of about 49,678 (245)

Measuring Optimal Length of the Amplifying Fiber in Different Working Conditions of the Amplifier

Advances in Electrical and Electronic Engineering, 2014
The aim of this article is to highlight possible unwanted behaviour of an EDFA optical amplifier during temperature changes. After a brief introduction dealing with amplifiers and doped fibers in general we focus on the assembly of our own EDFA amplifier
Radek Poboril, Petr Siska, Jan Latal, Martin Smrz, Jakub Cubik, Stanislav Kepak, Vladimir Vasinek   +6 more
doaj   +1 more source

Biopsychosocial predictors of adherence to follow-up colposcopy in first-time patients. [PDF]

Cervical cancer is a major health issue worldwide, with 500 000 new cases each year (Parkin et al., 2001). Women who die of cervical cancer lose on average 26 years of life, which is considerably greater than the average years of life lost to breast ...
Walsh, Jane C., Kola, Susanna
core   +3 more sources

Interfacial Roughness and Temperature Dependence of Narrow Band Thin Film Filters for the DWDM Passive Optical Networks

Advances in Electrical and Electronic Engineering, 2016
In the design of new components for passive optical networks (PONs), the non-ideal properties are worth considering. In this paper the influence of interface roughness and temperature changes on final transmittance of downstream channels blocking filters
Lubomir Scholtz, Libor Ladanyi, Jarmila Mullerova   +2 more
doaj   +1 more source

Conceptos y componentes de la diversidad biológica marina: Aporte desde la Ciencias Biológicas

, 2022
El término diversidad biológica engloba aspectos relacionados con la variabilidad de los organismos vivos, incluidos los ecosistemas terrestres y marinos y otros ecosistemas acuáticos y los complejos ecológicos de los que forman parte; comprende, de esta
Seco Pon, Juan Pablo
core   +1 more source

Satellite retrieval of oceanic particulate organic nitrogen concentration

Frontiers in Marine Science, 2022
Over the past several decades, satellite ocean color remote sensing has greatly improved our understanding of the biogeochemical properties of the global ocean.
Yongquan Wang, Yongquan Wang, Huizeng Liu, Huizeng Liu, Guofeng Wu, Guofeng Wu   +5 more
doaj   +1 more source

[18F]Fluorodeprenyl‐D2 PET as a Tool to Monitor Disease Activity in GAD65‐Ab Autoimmune Encephalitis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate [18F]fluorodeprenyl‐D2 ([18F]F‐DED) positron‐emission tomography (PET) imaging as a biomarker of disease activity in autoimmune encephalitis (AIE) associated with glutamic acid decarboxylase 65 (GAD65) antibodies. Methods [18F]F‐DED PET was performed in 25 GAD65‐AIE patients and 8 controls using dynamic (0–60 min) and ...
Julia S. Dorneich, Jonathan A. Gernert, Hanna Zimmermann, Lisa Tagnin, Marianthi Zeinaki, Laura Sanzo, Letizia Vogler, Elisabeth Kaufmann, Justina Dargvainiene, Frank Leypoldt, Gérard N. Bischof, Robert Perneczky, Boris‐Stephan Rauchmann, Simon Lindner, Günter U. Höglinger, Rudolf A. Werner, Martin Kerschensteiner, Tania Kümpfel, Matthias Brendel, Franziska S. Thaler   +19 more
wiley   +1 more source

Choroid Plexus Enlargement and USPIO‐Based Inflammatory Feature in Cerebral Small Vessel Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The choroid plexus (CP) is a key component of the blood–cerebrospinal fluid barrier (BCSFB), but its mechanism of action in cerebral small vessel disease (CSVD) remains unclear. This study investigated CP volume (CPV) alterations and their association with conventional imaging markers in CSVD and explored the underlying role of ...
Yongqiang Qu, Xiaoning Ren, Cuihua Fan, Chun Li, Lijie Zhang, Zaiqiang Zhang, Shaowu Li, Zhongmeng Lai, Bin Cai, Ying Fu, Yi Lin, Zhibao Zhu   +11 more
wiley   +1 more source

Defect Engineering and Dopant Properties of MgSiO₃

Eng
Magnesium silicate (MgSiO3) is widely utilized in glass manufacturing, with its performance influenced by structural modifications. In this study, we employ classical and density functional theory (DFT) simulations to investigate the defect and dopant ...
Kowthaman Pathmanathan, Poobalasuntharam Iyngaran, Poobalasingam Abiman, Navaratnarajah Kuganathan   +3 more
doaj   +1 more source

Neurochemical Endpoints to Inform Early‐Stage Trials of Spinocerebellar Ataxia 2 and 3 in a Multisite Setting

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neurochemical levels measured by brain MR spectroscopy (MRS) have been proposed as endpoints for clinical trials in early‐stage spinocerebellar ataxia (SCA) trials. We tested their trial‐readiness by quantifying neurochemicals in three affected brain regions in early‐stage cohorts of SCA2 and SCA3, examining their reproducibility in ...
James M. Joers, Yaqiao Wei, Dinesh K. Deelchand, Adam Berrington, Young Woo Park, Guita Banan, Michal Povazan, Jens T. Rosenberg, André J. W. van der Kouwe, Tetsuo Ashizawa, Khalaf O. Bushara, Chiadi U. Onyike, Sub H. Subramony, Jeremy D. Schmahmann, Brian J. Soher, Peter B. Barker, Thomas H. Mareci, Eva‐Maria Ratai, Lynn E. Eberly, Gülin Öz   +19 more
wiley   +1 more source

Diseño de red óptica de larga distancia reconfigurable

Visión Electrónica, 2018
Actualmente, las redes de fibra óptica están en proceso de implementación en todo el mundo ya que poseenventajas frente a las redes tradicionales, entre ellas el aumento de la cobertura y altas velocidades de transmisión; sin embargo, las redes de acceso
Sergio Alejandro Pérez Almeida, Gustavo Adolfo Puerto Leguizamón   +1 more
doaj   +1 more source