5. CONCLUSIONS Dry waste prawn shell converted to chitin and chitosan by using 3.5% of NaOH and 1N HCl with the temperature range from 20 oC-120 oC in the process of deprotinized, demineralized , decolourized and deacytilated .CMC was synthesized by carboxymethylation, as some of the –OH group of chitosan were substituted by –CH2COOH groups. Carboxymethyl chitosan was used as an adsorbent for the removal of copper from the wastewater. The removal efficiencies of copper were affected by different parameters such as pH, adsorbent dosage, temperature, contact time, initial metal ion concentration, anion and cation.…
Develop a hypothesis about which properties are the most useful for identifying the period to which an element belongs.…
The Medical Communications for Combat Casualty Care (MC4) program integrates and fields the Army’s capability to digitally capture medical treatment data in operational environments, enhancing the continuity of care, and enabling a comprehensive lifelong electronic medical record for Service members. MC4 contains multiple systems within one system including medical software packages fielded to operational medical forces worldwide. The system is comprised of joint software, commercial, and government products including Theater Medical Information Program-Joint (TMIP-J) and Armed Forces Health Longitudinal Technology Application for the Theatre (AHLTA-T) applications provided by Defense Health Clinical Systems (DHCS). The TMIP-J applications…
The 3 elements that were picked for the experiment share similar group and periods. The elements Magnesium (Mg) and Calcium (Ca) have similar group, but their reactivity are different. The reason for this is that the atomic radius trend decreases as you go across the group but increases as you go down the group. Calcium is further down than magnesium, which mean it will have a bigger atomic radius. The definition of the atomic radius is the distance from the nucleus to the outside edge of the electron cloud, this means that the bigger the atomic radius is, the harder for the positive nucleus to pull the negative electrons in because of electron shielding, meaning that the electron in the lower energy level is in the way of the radius and the electrons in the higher energy level.…
The element was assigned to group 17 (the halogens) because it’s color is yellow, similar to those of the other elements in the group. Also, the other elements have negative melting points and poor conductivity, the same as Fluorine. “The halogens have a wide range of physical properties” (127). In addition, we observed that “Fluorine and chlorine are gases” (127). Fluorine could not be placed in group 18 as elements of group 18 are radioactive and are colorless, which do not apply to Fluorine.…
This section will be examining the middle market level of the fashion industry and the types of promotional mix they use. One such middle market brand is Mimco. Mimco is a mid range Australian accessory brand founded in 1996 by Amanda Briskin-Rettig, was then bought by The Country Road Group in 2012 for $45 million. Mimco has many product lines including purses & wallets, hair accessory’s and handbags, the bags retail for approximately $250 to $600 and is a mid priced luxury product.…
About magnesium chloride. Magnesium Chloride is also known as the “master Magnesium compound“. Magnesium chloride is named with the formula MgCl2. Being an ionic halide; it is highly soluble in water. This compound can be extracted from brine or sea water.…
Being able to lose weight without having to exercise a lot of time is something everybody would love to experience Fortunately, this seems to be possible. In accordance with a research made recently, compound 14, a synthesized molecule that tricks cells into thinking they have exercised rigorously has just been discovered. That actually means that researchers from the University of Southampton in The UK could soon create a functioning weight-loss pill. What Does Compound 14 Do?…
M & M Three oranges were cut in half and then placed over the juicer. The oranges were then pressed down, while being twisted allowing the juices from the oranges to be collected in the tray below. The orange juice in the trays were then poured into a 250ml beaker with cheese cloth on top of it. The cheesecloth caught the larger pieces of pulp from the oranges while allowing the juice to pass. The orange juice was then transferred into six 1.5ml centrifuge tubes.…
1.) First of all, Los Angeles city’s growth has been nothing but increasing since it first was established. The history of the aqueduct consists of the city wanting more water, getting more than they needed from the owens river resulting in a lifestyle with an unsustainable supply which then led to needing more water. And the cycle continues. The citizens and native americans from owens valley tried to deter it for as long as possible but failed and their water went away.…
There are also some people who disagree with these statements, The sequel to Half-Life (in which all humans retain their body parts), Half-Life 2 comes with a program called "Source SDK," which allows gamers to open up and edit the engine that they slaved over for months to bring us, allowing us to make maps (or levels), characters, objects, even editing the game itself. Crime and violence numbers have soared in the U.S. Violent crimes, carjacking, and others have drastically dropped since 1975 (FBI'S Annual Crime Rates) in the letter Steven Johnston sent to Sen. Hillary Clinton about her attack on violent games. Recent studies have shown that games work as a stress-reliever, allowing you to let out your anger or stress in a realistic but harmless…
Modern hip-hop has started to embody the earlier roots of hip-hop, transitioning into the politicized art form it once was. Due to the ongoing and continuous violence and systemic racism perpetrated against the black community, as well as increased access to media, the United States has become increasingly polarized, creating a black community that feels betrayed and dejected. Subsequently, hip-hop artists have turned to the microphones to take a stand. Jasari X, and Mick Jenkins, both exemplify the ongoing and systemic oppression perpetrated against black people by demonstrating the tremendous affect prejudice and discriminatory violence has on a group of people.…
After finding which topic I wanted to work on from Intelligence squared I began preliminary research on the Common Core. Coming up with a question was far harder than I anticipated it would be. The internet contains a mass of information on the Common Core and multiple areas that could be questioned. At first, I questioned how the common core would bring up American schools to the same level as other countries, considering those in support claim it’s at an international level and will support us in competing internationally. However, the further I delved into the research the more questions came up.…
The Yellow Wallpaper Synthesis Paper Introduction Charlotte Perkins Gilman’s short novel, The Yellow Wallpaper is one of the literacies shows the feminist in nineteenth century. It contains woman’s depression and neurasthenia as a psychological illness and a patriarchal man and his attitude to his wife in 10-pages short story. The protagonist Jane and her husband move to a mansion and stay there for a while. Jane is suffering from a psychological illness, and her husband John advises her a rest cure other than practical treatments. However, there are some parts show John loves and cares about Jane, but he does not listen to her.…
Unlike books on a bookshelf, our memories are reconstructions of scattered elements throughout our brain. Several different areas of the brain have to work together to remember past events, this is sometimes known as distributed processing. Elements of memory like sounds, words, and sights, are encoded in the part of the brain that created that memory fragment. This efficiently reactivates the neural patterns generated during the original encoding. This works a lot like a web.…