Digital TV migration still holds many un-answered questions. Recently, Multiplexing Broadcasting Agencies (LP3M) in seven zones have been defined, while 8 other zones are vacant. The winners of Multiplexing Broadcasting Agencies (LP3M) are actors who currently control televisions in Indonesia. Investment building that will serve emit multiplexing digital signals is key in digital TV business. All broadcasters have to hire to be broadcast. This has caused problems for local and community TV because they have to rent mux (multiplexing) estimated to 40 million per month. Not to mention taht they have to invest equipments for digital-based program. It requires government intervention in term of regulation that protects weak actors from the capital side, such as community TV.
The effect of HA amount on the physical properties and bioactivity of porous HA prepared by replica method using Musa paradisiaca as template has been studied. The templates were prepared by cutting the banana fronds into cylindrical shape. Slurries were prepared by mixing 9, 10, and 11 g HA with 11% sago starch, 2.5% Darvan821A, and distilled water. Slurries then stirred at 150 rpm for 24 h. Templates were impregnated into slurry and then dried at 110°C for 2 h. The green bodies were burned at 600°C for 1 h followed by sintering at 1250°C for 1 h. Porous HA was tested in vitro using simulated body fluid solution by soaking for 7-14 days. The cell attachment done by using Baby Hamster Kidney (BHK21) cell. The porous HA was produced with shrinkage in the range of 53.6-58.9%vol, density of 1.26-1.47 g/cm 3 , porosity of 53.5-60.1%, and compressive strength of 3.89-4 MPa. The pore size was obtained at the range 71.26-89.13 μm. The biodegradation rate of samples was found at the range of 1.34-2.27% with the increased apatite and carbonate content on porous HA after immersion proven by FTIR result. The cell attachment test showed that the viability of HA was 80.3% confirming that samples were non-toxic material.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.