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RFA One is a small-lift multistage launch vehicle with an on-orbit transfer stage designed to transport small and micro-s atellites of up to 1,300 kg into low-Earth polar and Sun-synchronous orbits. It has been in development by German private company Rocket Factory Augsburg since 2019.
Early count readings were therefore binary numbers [3] and had to be manually re-calculated into decimal values. Later, with the development of electronic indicators, which started with the introduction of the Dekatron readout tube in the 1950s, [ 1 ] [ 3 ] and culminating in the modern digital indicator, totalised readings came to be directly ...
Resonance frequency analysis was first suggested as an alternative method of analyzing peri-implant bone in a scientific paper by Meredith N et al in 1996. [4] As stated in the paper’s abstract, in measuring implant stability and osseointegration, “radiographs are of value, but a standardised technique is necessary to ensure repeatability.” [4] The new technique tested involved ...
The human brain contains 86 billion neurons, with 16 billion neurons in the cerebral cortex. [ 2 ] [ 1 ] Neuron counts constitute an important source of insight on the topic of neuroscience and intelligence : the question of how the evolution of a set of components and parameters (~10 11 neurons, ~10 14 synapses) of a complex system leads to ...
A drop of cell culture is placed in the space between the chamber and the glass cover, filling it via capillary action. [1] Looking at the sample under the microscope, the researcher uses the grid to manually count the number of cells in a certain area of known size. The separating distance between the chamber and the cover is predefined, thus ...
The RFA has acquired a Multi-Role Ocean Surveillance Ship to protect undersea critical national infrastructure, such as gas pipelines and undersea cables. [50] In February 2023, the vessel identified for this role - MV Topaz Tangaroa - was acquired and in October 2023 entered service as RFA Proteus. She was purchased for some £70 million and ...
IC 50 values are typically expressed as molar concentration. IC 50 is commonly used as a measure of antagonist drug potency in pharmacological research. IC 50 is comparable to other measures of potency, such as EC 50 for excitatory drugs. EC 50 represents the dose or plasma concentration required for obtaining 50% of a maximum effect in vivo. [1]
Radiofrequency ablation (RFA), also called fulguration, [1] is a medical procedure in which part of the electrical conduction system of the heart, tumor, sensory nerves or a dysfunctional tissue is ablated using the heat generated from medium frequency alternating current (in the range of 350–500 kHz).