Polymer

Proteins Molecules Building materials for cells. Cells have organelles such as mitochondria, lysosomes, vesicles, etc. It is estimated that the body has over ten trillions cells Carry oxygen, build tissue, copy DNA for the next generation and do the work needed by the body. Deoxyribonucleic acid contains the blueprint for proteins and replication of itself mRNA transcribes DNA, tRNA translates mRNA into proteins. A pattern on nucleotide on a DNA strand is called a gene. The Central Dogma of…

Mr. Daniel Madrzykowski recently wrote an article on the dynamics of fire science dealing within the fire service. Firefighting dynamics focus on many points dealing with the chemistry of firefighting and the many changes that are involved with fire behavior and the products of combustion associated with each object(Madrzykowski, 2016). Controlling the growth of the fire and knowing what the fire is doing in a structure is a great tool for company officers to use during firefighting tactics…

Started from 1895, when Wihelm Cornrad Roentgen discovered X-rays, numerous groundbreaking findings laid the foundation for medical imaging (Riesz 1995). Since the beginning of the twentieth century, many medical imaging modalities have been used in routine clinical practice to obtain anatomical and physiological information. PET, for instance, is used for physiological imaging. Ultrasound, MRI and CT are commonly used for soft tissue structures (Weissleder and Pittet 2008). In oncology, the…

Fig.7, shows that, the insulator behavior of the PVA for pure PVA. But, with increasing the time of reaction there is an improvement in the electrical conductivity of the PVA-Ag nanocomposite films. Fig.7 shows that, the (I–V) characteristic of the samples, and the inset of Fig. 7 shows the relation between the conductivity and time of reaction. Then, the dc conductivity was calculated at the (voltage = 10 V) using the relation. (S/cm) Where (d) is the sample thickness, (A) is the area of…

earlier works, which consisted of popular imagery such as the bust of Marilyn Monroe, Brillo boxes and Campbell’s soup cans. Warhol’s “Red Disaster”, currently on view at the Museum of Fine Arts, was crafted in 1963, using silkscreen ink on synthetic polymer paint. The piece consists of two panels: one a large canvas painted a deep blood red, the other a haunting twelve-fold repetition of a black and red tinted image of an electric chair. Within the images of the chair, there seems to be…

also an example of Pop Art, from artist Roy Lichtenstein, that used an already popular piece of art. This painting was created in 1963 near the beginning of the Pop Art rise in America. The medium used to create “ was canvas with oil and synthetic polymer paint. “ is a revision of a DC comic that embodies that most dramatic portion of the comic. Liechtenstein purposefully recreated the dramatic girl as a challenge to traditional art views, as he did with much of his art. These challenges are…

Bacterial meningitis is one of the most common infectious diseases affecting neonates (7). It is characterized by the inflammation of the meninges caused by the presence of bacteria or bacterial products within the subarachnoid space of the brain, the spinal cord and the ventricular system (16, 22). This inflammatory response can eventually lead to various forms of brain damage (16, 26). Untreated neonatal bacterial meningitis (NBM) almost always results in death (22), and despite the…

When someone uses the term “prosthetics”, what is the first thing to come to mind? Is it an advanced robotic arm, or a simple plastic prosthetic hand, no more complicated than a mannequin’s? These shouldn’t necessarily be such opposites, but it is almost certainly true that the latter is more common than the former. Prosthetics have come an extremely long way since their induction. Pirates and peg legs tend to give us a reminder of how far we’ve come since the dark times where a prosthetic was a…

Naturally, PV display the following characteristics: 1. PV can also be used for the removal of certain components in equilibrium reactions. 2. Polymer membrane compaction, a frequent problem in high-pressure gas separation, is not encountered in pervaporation because the feed pressure is typically low.[8] 3. The permeate pressure has to be always lower than the saturation pressure of the permeant…

1. Carlos Slim Helú was born 28, January 1940 and he is a Mexican business magnate, philanthropist and investor. From 2010 - 2013, Carlos Slim was graded as the richest person in the world. The position was taken back by the Bill Gates in the year 2014 before Carlos Slim reclaimed the position again in 15, July 2014. Recognized as the Warren Buffett of Mexico, Carlos Slim has wide holdings in a significant number of the Mexican companies through his SA de CV, Grupo Carso, conglomerate, have…