World Health Organization (WHO) stated that the median lethal concentration (LC50) for any molluscicidal material must not surpass (100 ppm) (WHO, 1993). The present results showed that, match 5%EC (Lufenuron 5% EC) was toxic to B. alexandrina snails at LC50 2.04 mg/l (Table 1). The internal defense system of molluscs is comprised of cellular and humoral components (Le Clec’h et al., 2016). Thus, the immune response is carried out by circulating hemocytes and soluble hemolymph factors (Fried
TCL, and LDLO. LD50 stands for lethal dose. A group of animals is given the maximum amount of the product until 50% of the animals are killed. MTD stands for Maximum Tolerated Dose. In this test, the largest amount of product an animal is able to tolerate for an extended amount of time is determined. TCL stands for Toxic Concentration Low. This test determines the lowest amount of liquid, gas, or vapor that a toxic effect can be produced. LDLO, standing for Lethal Dose Low, is a test in which the product
LD50 or the lethal dose of 50%, is the amount of a chemical which kills 50% of the population of a test species (used in toxicity evaluations) exposed to that. The EPA study used IC50 toxicity data of selected chemicals towards HeLa cell lines to predict their in-vivo (LD50) toxicity values. IC50 is an index of the toxicity of a substance defined as the concentration of that chemical which have inhibitory effects on the growth of the 50% of the test population. HeLa cell used in this study is an
The Dosage of Ionizing Radiation Increases the Risk of Cancer On November 8, 1895, a German physics professor named Wilhelm Roentgen discovered x-rays. This advance in technology helped man explore the unknown of the human body without performing surgery. Only the microscope could compete with x-rays in the “contribution to medical vision” (Gunderman 2). After the discovery of x-rays, researchers found that there were therapeutic and also cancerous results from radiation emissions. Before this discovery
Medical Cannabis Cannabis, better known as, weed, pot, or marijuana has been used for medical purposes for the better part of human history. The most active and well known compound in cannabis is Tetrahydrocannabinol (THC) which causes the main psychedelic effects of marijuana. The little known chemical that is the most used in treating illnesses is Cannabidiol (CBD)only containing about 10% of psychoactive properties found in weed. Although their are hundreds of natural compounds in cannabis these
Overall, we were able to discern that calcium chloride would serve as the most effective ionic solid within a hand warmer. Foremost, it served as one of the most effective solids in regards to heat production. The reason being, as seen from our calculations, when one places 10 grams of any of the ionic solids tested in the experiment inside a hand warmer containing an inner pouch of 40 mL of water, calcium chloride has the second greatest expected increase in regards to the heat of the solution.
If we as individuals are able to have rights, shouldn’t animals be able to have rights as well? It’s not right people are able to own animals and legally starve them, experiment and kill them because a researcher wants to run a test and if they did what they’re doing to a human then it might be considered illegal and the people are able to speak and sue them. Just because humans and chimpanzees are scientifically similar in genetics, that doesn’t mean people are the same as them. Animals — specifically
The Use of Chemical Weapons in the Tokyo Subway Attack Japan has long enjoyed the enviable reputation of being one of the safest nations in the world. The country has one of the world lowest rates for murder and other violent crime, and the Japanese National Police Agency and local Police forces are often praised as a model of law enforcement efficiency. Tokyo enjoys one of the cleanest, safest and most efficient subway networks in the world. Trains run on precise schedules and accommodate
religious sects in Japan, or Iraqi insurgents against U.S. forces. Sarin is a desired compound for use in unconventional warfare because even under crude conditions terrorists are able to synthesize an impure concoction that is still toxic enough to be lethal. In 1994, Japanese terrorists spread sarin through the residential center of Matsumoto, Japan using a heater and fan mounted to the back of a truck. About 600 people, including first-responders, developed acute cholinergic syndrome [2]. The large
Directions: The following prompt is based on the accompanying ten sources. This question requires you to integrate a variety of sources into a coherent, well-written essay. Refer to the sources to support your position; avoid mere paraphrase or summary. Your argument should be central; the sources should support this argument. Remember to attribute both direct and indirect citations. Introduction: The death penalty has been implemented since ancient times and punishes criminals. Some people