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Hace 6 días · Let it be, 50 años después: el aporte de la película olvidada de The Beatles que regresa restaurada. Por años estuvo disponible sólo en ediciones de VHS y láserdisc de baja calidad, pero desde hoy la película de 1970 que marcó el final de los Fab Four, vuelve a estar disponible en la plataforma Disney+ en una versión restaurada.
Hace 5 días · And multiple honeybees that were coming back to the colonies had levels of thiamethoxam in them that were above an LD 50, above, above the lethal dose for 50% of those organisms. That is very troubling, and it actually triggers what’s called a level of concern, so there’s a trigger value of 40% of an LD 50 where the US Environmental Protection Agency now steps in and says, all right, this ...
Hace 5 días · The median lethal dose (LD 50) of ricin in mice is 5 micrograms per kilogram (μg/kg) via intravenous (IV) injection and 10–15 μg/kg for nonhuman primates via aerosol exposure ; extrapolation of these indicate human LD 50 exposure could be ~1 to 5 mg/kg IV.
Hace 3 días · Acute toxicity study revealed the non-toxic nature of aqueous extract of D. triflorum, show any sign and symptoms of toxicity and mortality up to 2000 mg/Kg dose after fourteen days of inhibition and study which indicates the extract found to be safe and toxic free upto the dose level and all animals survived at a dose of 2000 mg/Kg body weight, the LD 50 of the extract will be > 2000 mg/Kg ...
Hace 5 días · LD 50: The mean lethal dose. PCP: pentachlorophenol. TCAcet: Trichloroacetic acid. TTC-1,4-BQ: Tetrachloro-1,4-benzoquinone. TTC: tetrachlorocatechol. References. Lovato ME, et al. Kinetics of the degradation of n-butyl benzyl phthalate using O3/UV, direct photolysis, direct ozonation and UV effects.
Hace 5 días · The median lethal dose (LD. 50) of ricin in mice is 5 micrograms per kilogram ... (E-beam) irradiation with a dose of ~200 kGy (E-beam Services Inc., Lebanon, OH) prior to testing.
Hace 3 días · · Valores LD/LC50 (dosis letal /dosis letal = 50%) relevantes para la clasificación: LD 50 (Intraperitoneal) 98 mg/kg ... Lethal concentration, 50 percent LD50: Lethal dose, 50 percent PBT: Persistent, Bioaccumulative and Toxic vPvB: very Persistent and very Bioaccumulative SVHC: Substances of Very High Concern Flam. Liq. 3: ...
