Solubility is the ability of a substance‚ or solute‚ to dissolve and homogenously disperse throughout another substance‚ or solvent. In order for drugs to be therapeutically effective and bioavailable‚ it must first be highly soluble. Poor solubility and low dissolution rates of drugs in the aqueous gastrointestinal tract lead to decreased bioavailability. Solubilization of poorly soluble drugs is a challenge in the formulation of newly developed drugs. Because many medications are administered orally
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Submarine cables Laying of cables in the oceans of our world is a fascinating business. Real men and women toil long and tedious hours to make this possible. Submarine cables are laid down by using specially modified ships (sometimes even purpose built ships) that carry the submarine cable on board and slowly lay it out on the seabed as per the charts/plans given by the cable operator. The ships can carry with them up to 2‚000 kilometers length of cable. Depending on the equipment on-board
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Do any of you know which animal has to throw sand on its back to prevent itself from sunburn? These same animals are afraid of things that are a lot smaller than them. Well‚ I am talking about elephants. Today I will be informing you about the different types of elephants‚ their anatomy and their behavior. Elephants are the largest living land animals. There are two types of elephants‚ Asian elephants and Indian elephants. The African elephant is significantly larger‚ they weigh from 8‚800- 15
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Microbiology Final Exam Question 1 2 out of 2 points Full induction of the lactose operon requires ________. Question 2 0 out of 2 points The enzymes that help pack DNA into the cell by coiling the DNA into a tight bundle are ________. Question 3 2 out of 2 points Gene regulation can involve a protein repressor that blocks ________ from initiating transcription. Question 4 2 out of 2 points Synthesis of a repressible enzyme is inhibited by ________.
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The findings of this experiment indicate the hypothesis to be partially correct and partially incorrect. As was predicted‚ the experimental results did support the concept that as the carbon number increased so would the energy level. When comparing the energy levels of other isomers to straight chain alcohols‚ the graph shows the first part of the trend line for the other isomers to have a higher energy‚ while the less steep trend gradient means this switches over between 3 and 4 carbon‚ indicating
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Every living organism has a unique ability or trait that allows them to perform a specific role in their environment‚ and makes them fascinating in many different ways. These traits and abilities create a vast diversity among the many environments on Earth. The four insects that were most fascinating to me are: The American bumble bee‚ Venus fly trap‚ black widow spider‚ and the Burmese python snake. The American bumble bee has a lot of characteristics that make it fascinating. One of these characteristics
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Genetics Practice Test Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Pea plants were particularly well suited for use in Mendel’s breeding experiments for all of the following reasons except that a.|peas show easily observed variations in a number of characters‚ such as pea shape and flower color.| b.|it is possible to control matings between different pea plants.| c.|it is possible to obtain large numbers of progeny from any given
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uses. Electromagnetism is commonly used in microwaves‚ remote control cars‚ and it creates energy cleanly and fast. One of the most important uses for electromagnetism is in electronic motors. The main components are a core rod and many copper wires coiling around the iron rod. The coils rotate around the iron rod because of the magnetic force caused by a certain magnetic field on an electric current. While doing so‚ this turns electrical energy into mechanical energy. When this happens‚ normally a gear
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My Father: The Person I Admire Most Over time‚ there have been several people who have influenced various aspects of my life‚ based on their personal characteristics‚ accomplishments‚ and values. I have been privileged to have had numerous teachers and professors who I respect for their patience and intelligence. There are artists that have inspired me by their natural talents and original creativity. I value many political leaders‚ who have inspired me by their contributions to society‚ and
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Secondary structure The structure involves the folding and coiling of the polypeptide chain to give protein its 3-dimensional shape. Protein has two types of secondary structure; the alpha (α) helix and the beta (β) pleated sheet‚ refer to figure 3. The α helix is coiled and held together by a hydrogen bond in the
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