Science essays

ROLE OF FDG PET-CT IN COMPARISON WITH ENHANCED CT IN DETECTION OF POST THERAPEUTIC COLORECTAL CANCER RECURRENCE AND METASTASIS       INTRODUCTION   INTRODUCTION Colorectal cancer is a major cause of morbidity and mortality throughout the world. It accounts for over 9% of all cancer incidence. It is the third most common cancer worldwide … Read more

Abstract Endurance exercise and high altitude are two common ways to improve the exercise performance by adaptations in skeletal muscular cells. The hypothesis that the adaption of muscle metabolism due to exercise training is caused by cellular hypoxia in the muscle tissue will be discussed by comparing the effects of high altitude and exercise training … Read more

  Abstract In this study, preparation and characterization of polyacrylamide/reduced graphene oxide-Ag (PAM/rGO-Ag) nanocompositesasas a new nanocomposite film were investigated. Then, the prepared PAM/GO nanocomposite was filled with Ag nanoparticles and thermally annealed in order to achieve high performance nanocomposite film with antimicrobial activities. The prepared nanocomposite was characterized by XRD, FT-IR, SEM, TEM and … Read more

Abstract: Optical fibers have been extensively utilized in both the communications and sensors industries. In addition to their use in transmission, they have been used to realize many fiber devices, including sensors. This project focuses on the investigation of simple optical fiber sensors based on wave interference in multimode fibers with possible use in strain … Read more

INTRODUCTION A strike slip system is a deformation mechanism that occurs in continental as well in oceanic crust at different scales (Burg, 2011). These narrow systems contain faults between the two adjacent blocks where the sense of direction is parallel to the strike of sub vertical fault plane (Jaeger, et al., 2009). The deformation formed … Read more

The success of Silicon based technology is due to SiO2/Si interface. In this, the interface defect density is about 1012 cm-2 but it can be reduced by two orders after annealing the device in N2/H2 atmosphere at temperature nearly 400-4500C. In case of Germanium, the oxide/Ge interface density is about 1013cm-2 ranges which harm the … Read more

Evaluate the antibacterial properties of ethanolic extract and chloroform extract of Parsley (Petroselinum crispum) stem against selected pathogens, Staphylococcus aureus (ATCC 25923) and Escherichia coli (ATCC 25922) using Disk Diffusion Assay CHAPTER I THE PROBLEM AND ITS SETTING Background of the Study The world is well renowned of its capacity to produce and reproduce every … Read more

Chapter 1 1 Introduction Plasma is the popular state of the matter in the universe. We live in a bubble of essentially non-ionized gas in the midst of an otherwise ionized environment. 99% of the matter in the universe is in the plasma state in the form of an electrified gas with the atoms dissociated … Read more

Abstract The genetic code is the set of rules by which DNA stores the genetic information about formation of protein molecule. In this paper we discuss an algebraic structure of the genetic code in terms of the four DNA bases (A, C, G, T). Some relations between transition/transversion mutation of codons and algebraic properties of … Read more

  1. Question #1-1 To estimate the Global Teleconnections Operators (GTO), we assume that the mean state of atmospheric response to anomalous sea surface temperature (SST) forcing can be regarded as a linear process. In other words, the regional climate response for given region can be the summation of the responses to individual SST forcings. … Read more

Literature review Anatomical structures of bones Bone forms the skeletal system and forms for vertebrates as support for an internal structural system, grow and has variation in size and shape to have a capacity to withstand the mechanical vigor, also the bone is looked as an inorganic ions main source, and efficiently takes part in … Read more

Microbial enzymes are identified to play a central role as metabolic catalysts, leading to their usage in various productions and applications , the end usage market for industrial enzymes is tremendously wide-spread with frequent industrial profitable applications (Adrio, et al., 2005). Over 500 industrial products are being complete using enzymes (Kumar, and Singh, et al., … Read more

Introduction During cell death, molecules that normally reside intracellularly may become exposed or released into the extracellular environment. Such exposure or release occurs in a controlled manner during programmed cell death (apoptosis, necroptosis, ferroptosis, pyroptosis) or uncontrolled, as is the case during primary necrosis. A range of molecules released from dead and dying cells have … Read more

In every mammal, Glucose is acts as an important energy source metabolic substrate. It is obtained directly from the diet, principally following the hydrolysis of ingested disaccharides and polysaccharides, and by synthesis from other substrates in organs such as the liver. In the breakdown of each gram of carbohydrates, four calories of energy are consumed. … Read more

Enhancing the performance of perovskite sensitized solar cells based on core/shell photoanode structure with spiro-MeOTAD HTM electrolyte ABSTRACT An attempt has been made to fabricate methyl ammonium tin chloride (CH3NH3SnCl3) perovskite sensitized TiO2 nanostructure photoanode solar cell with hole transport material (HTM) spiro-MeOTAD and graphite coated counter electrode. The TiO2 nanoparticles (TNPs), TiO2 nanoleaves (TNLs), … Read more