Results 91 to 100 of about 1,834,226 (297)

Preliminary Estimation and Validation of Polar Motion Excitation from Different Types of the GRACE and GRACE Follow-On Missions Data

open access: yesRemote Sensing, 2020
The Gravity Recovery and Climate Experiment (GRACE) mission has provided global observations of temporal variations in the gravity field resulting from mass redistribution at the surface and within the Earth for the period 2002–2017.
Justyna Śliwińska   +2 more
doaj   +1 more source

Modeling the polar motion of Titan

open access: yesIcarus, 2016
The angular momentum of the atmosphere and of the hydrocarbon lakes of Titan have a large equatorial component that can excite polar motion, a variable orientation of the rotation axis of Titan with respect to its surface. We here use the angular momentum obtained from a General Circulation Model of the atmosphere of Titan and from an Ocean Circulation
Coyette, Alexis   +3 more
openaire   +2 more sources

Using fluorescence fluctuation spectroscopy to quantify molecular dynamics within cells

open access: yesFEBS Open Bio, EarlyView.
Microscopy techniques like fluorescence correlation spectroscopy (FCS) and number and brightness analysis (N&B) allow to quantify concentrations, diffusion rates, and oligomerization of fluorescently labeled molecules in the living cell. In this protocol the principles of how to set up these types of experiments are described including calibration ...
Mark A. Hink
wiley   +1 more source

Excitation of seasonal polar motion by atmospheric and oceanic angular momentums

open access: yes, 2000
A quantitative study on the seasonal polar motion excitated by the atmospheric angular momentum (MM) and the oceanic angular momentum (OAM) has been carried out using numerical models.
Wu, HQ, Zheng, DW, Zhou, YH, Yu, NH
core  

Trichinella sp. in polar bears from Svalbard, in relation to hide length and age [PDF]

open access: yes, 2010
Diaphragm and masseter muscles from 376 polar bears ((irsur maririmus), 252 ringed seals (Phocn hispida), 84 bearded seals (Erignarhus barbarus), and 77 arctic foxes (Alopex lagopus) from Svalbard were examined for Trichinelln.
Larsen, Thor, Kjos-Hanssen, Bjørn
core   +1 more source

Elliptic polarisation of the polar motion excitation

open access: yesJournal of Geodesy, 2015
Because of its geophysical interpretation, Earth’s polar motion excitation is generally decomposed into prograde (counter-clockwise) and retrograde (clockwise) circular terms at fixed frequency. Yet, these later are commonly considered as specific to the frequency and to the underlying geophysical process, and no study has raised the possibility that ...
openaire   +4 more sources

Rationally engineered polymeric interfaces for selective and dynamic recognition of vesicular agents

open access: yesFEBS Open Bio, EarlyView.
This review explores how molecularly imprinted polymers can be engineered to recognize complex nanoscale vesicles, including extracellular vesicles and membrane‐enveloped viruses. By tailoring polymer cavities to vesicle surface chemistry and structure, these synthetic receptors support selective detection, separation, and integration with optical ...
Özgecan Erdem   +4 more
wiley   +1 more source

Predictability of the Earth’s polar motion [PDF]

open access: yesBulletin Géodésique, 1985
A comprehensive, experimental study of the predictability of the polar motion using a homogeneous BIH (Bureau International de l'Heure) data set is presented. Based on knowledge of the physics of the annual and the Chandler wobbles, the numerical model for the polar motion is constructed by allowing the wobble periods to vary.
openaire   +1 more source

Surface modification of 3D‐printed polycaprolactone scaffolds with silk fibroin for bone tissue engineering

open access: yesFEBS Open Bio, EarlyView.
Coating 3D‐printed PCL scaffolds with silk fibroin can improve biocompatibility and bone cell adhesion. One innovative design for tissue‐engineering scaffolds uses 3D printing technology. Here, we used polycaprolactone (PCL) filament as a biocompatible material to design a porous 3D scaffold for bone tissue engineering.
Hamed Koeini   +7 more
wiley   +1 more source

Modelling of polar bear populations by the Leslie matrix population model

open access: yes, 2010
Some general doubts have been voiced regarding the soundness of using a Leslie matrix population projection on polar bear ...
Larsen, Thor, Ugland, Karl I.
core   +1 more source

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