Search results for "APAR"
showing 10 items of 848 documents
Synchronized photonic modulators driven by surface acoustic waves
2013
Photonic modulators are one of the most important elements of integrated photonics. We have designed, fabricated, and characterized a tunable photonic modulator consisting of two 180 degrees-dephased output waveguide channels, driven by a surface acoustic wave in the GHz frequency range built on (Al,Ga)As. Odd multiples of the fundamental driven frequency are enabled by adjusting the applied acoustic power. A good agreement between theory and experimental results is achieved. The device can be used as a building block for more complex integrated functionalities and can be implemented in several material platforms. (C) 2013 Optical Society of America
El papel del péndulo en el construcción del paradigma newtoniano
1992
This paper shows the important role of one of the most common instruments, the pendulum, in the construction of the newtonian paradigm. From the analysis of some interesting applications carried out by the greatest scientists of that time, we conclude that the appropriate use of the pendulum in the classroom can be an easy way to introduce historical and epistemological evolution of basic physical concepts.
TMS activation of interhemispheric pathways between the posterior parietal cortex and the contralateral motor cortex
2009
Using a twin coil transcranial magnetic stimulation (tc-TMS) approach we have previously demonstrated that facilitation may be detected in the primary motor cortex (M1) following stimulation over the ipsilateral caudal intraparietal sulcus (cIPS). Here we tested the interhemispheric interactions between the IPS and the contralateral motor cortex (M1). We found that conditioning the right cIPS facilitated contralateral M1 when the conditioning stimulus had an intensity of 90% resting motor threshold (RMT) but not at 70% or 110% RMT. Facilitation was maximal when the interstimulus interval (ISI) between cIPS and M1 was 6 or 12 ms. These facilitatory effects were mediated by interactions with …
Pintura valenciana desconocida o desaparecida de la villa real de Caudete en los siglos XV y XVI
2010
Este trabajo quiere dar a conocer por primera vez la pintura desarrollada en la villa real de Caudete durante los siglos XV y XVI, así como las relaciones artísticas y culturales que, desde la Baja Edad Media y el Renacimiento, existieron entre esta lejana y territorialmente aislada villa valenciana, las comarcas valencianas vecinas y la capital del Reino. Estos contactos desembocarán en la llegada de obras de pintores valencianos o el encargo de obras de éstos para la villa de Caudete. Además, queremos dar a conocer la que sería la primera obra documentada de Vicent Requena, en el año 1586. (A)
Flowers, Water accumulation and Corporate Social Responsibility: Certification of the Production of Roses and Claims for Environmental Justice in Ecu…
2018
La producción comercial de flores, el acaparamiento del agua y las luchas sociales por un reparto equitativo y un ambiente sano tienen una estrecha relación. Ecuador es el tercer exportador mundial de rosas. Cayambe-Tabacundo es la principal zona de producción y presenta una fuerte presión sobre los recursos hídricos. El agua es acaparada por las grandes empresas florícolas, quedando el resto para agricultura/ganadería de subsistencia en comunidades indígenas. Las florícolas utilizan las certificaciones ambientales y de comercio justo privadas, pero los estándares son permisivos. Este artículo analiza las relaciones de poder detrás de las prácticas de certificación de flores. Concluye que s…
Līdzsvara attīstības iespējas pastaigu laikā 5-6 gadus veciem bērniem
2019
Kvalifikācijas darbs izstrādāts par tematu „Līdzsvara attīstības iespējas pastaigu laikā 5-6 gadus veciem bērniem”. Tā mērķis – pētīt līdzsvara attīstības iespējas pastaigu laikā 5-6 gadus veciem bērniem. Darbs sastāv no teorētiskās un empīriskās daļas. Teorētiskajā daļā izskatīta līdzsvara attīstīšanas nepieciešamība un problemātika, noteikti aktuālākie līdzsvara attīstīšanas uzdevumi 5-6 gadus veciem bērniem, kā arī noteikti iespējamie paņēmieni līdzsvara attīstīšanai pirmsskolas pedagoģiskajā procesā. Par teorētisko atziņu bāzi kalpoja tādu zinātnieku pētījumi kā A. Kaupušs, V.Lāriņš (2015), R.Karlovska (2000, 2017), L. Seveļjeva (2016) M. Lejiete (2015), S. Ušča, V. Ļubkina (2015), P. S…
Combining hectometric and decametric satellite observations to provide near real time decametric FAPAR product
2017
Abstract A wide range of ecological, agricultural, hydrological and meteorological applications at local to regional scales requires decametric biophysical data. However, before the launch of SENTINEL-2A, only few decametric products are produced and most of them remain limited by the small number of available observations, mostly due to a moderate revisit frequency combined with cloud occurrence. Conversely, kilometric and hectometric biophysical products are now widely available with almost complete and continuous coverage, but the associated spatial resolution limits the application over heterogeneous landscapes. The objective of this study is to combine unfrequent decametric spatial res…
Possible Role of the Posterior Compartment Peritonectomy, as a Part of the Complex Surgery, Regarding Recurrence Rate, Improvement of Symptoms and Fe…
2020
ABSTRACT Study Objective Beside the pain, there are 2 further problems in the management of endometriosis: the high recurrence rate (10% per year) and the high rate of impaired fertility. The objective of this study was to investigate the pathogenesis of these 2 factors. Design This is a retrospective cohort study, and the aim is to evaluate the complete excision of endometriotic lesions, including the posterior compartment of the peritoneum, with regard to postoperative outcome, focusing on relieving pain, increasing fertility rate, and decreasing recurrence rate. Setting Charite-University Clinic, Department of Gynaecology, Endometriosis research Centre. Patients Fifty-four patients were …
Kinetic analysis and molecular modeling of the inhibition mechanism of roneparstat (SST0001) on human heparanase
2016
Heparanase is a β-d-glucuronidase which cleaves heparan sulfate chains in the extracellular matrix and on cellular membranes. A dysregulated heparanase activity is intimately associated with cell invasion, tumor metastasis and angiogenesis, making heparanase an attractive target for the development of anticancer therapies. SST0001 (roneparstat; Sigma-Tau Research Switzerland S.A.) is a non-anticoagulant 100% N-acetylated and glycol-split heparin acting as a potent heparanase inhibitor, currently in phase I in advanced multiple myeloma. Herein, the kinetics of heparanase inhibition by roneparstat is reported. The analysis of dose-inhibition curves confirmed the high potency of roneparstat (I…