Microscopy

Teeth whitening has been around for about 15 years, and the idea of having a whiter smile keeps growing in popularity but with almost any cosmetic fad there is the question: “what is the real price?” Bleaching teeth can be done in a dental office or at home. Dental experts have started to question and test over the years whether teeth whitening products harm the enamel. Two different articles address this controversy and share their studies and results. The journal of clinical and experimental…

1. Introduction Silicified wood is normally formed close to the surface due to the infiltration of buried wood with mineral-rich water and the associated deposition of minerals (Kim et al., 2009). Two typical geological environments have been reported, 1) trees transported by streams and rivers then buried in the fluvial sediments (e.g., Weibel, 1996; Fielding and Alexander, 2001; Parrish and Falcon-Lang, 2007; Hartmann et al., 2010), and 2) ash from volcanic eruptions buries trees while felled…

Multiferroic composite of 0.2 LNMFO + 0.8 BFO with LNMFO as ferrimagnetic and BFO as ferroelectric phase were prepared by the standard solid state reaction method. To prepare BFO stoichiometric amounts of high purity Bi2O3, and Fe2O3 were weighed and mixed thoroughly in acetone media for 5–6 h. The mixed powder of BFO was calcined at 800 °C in a closed alumina crucible for 4 h and then pre-sintered at 850°C for 4 h. High purity Li2CO3, NiO, MnCO3 and Fe2O3 were mixed in stoichiometric amounts to…

2. Materials and Methods: 2.1. Materials: Natural red, propidium iodide (PI), acridine orange and phosphate-buffered saline (PBS) were obtained from Sigma-Aldrich (St.Louis, MO). May–Grunwald–Giemsa stain was procured from Merck (Darmstadt, Germany). Fetal calf serum, Dulbecco's Modified Eagle Medium (DEMEM) and RPMI 1640 were bought from GIBCO/Life Technologies Inc. (Gaithersburg, MD). 2.2. Isolation and Proliferation of MSCs Bone marrow derived MSCs were isolated as described previously…

making lab testing as accessible as possible.” According to their online prices for blood tests, Theranos never exceeds the amount of $118, with a Hepatitis C Genotype test at $117 and the cheapest being $1.53 for a Urinalysis, Auto with reflex to Microscopy. Prices vary for different tests, but the difference with Theranos is that they are quick and cheaper than most blood testing companies and less painful due to their innovative process. While Elizabeth Holmes is the CEO and Founder of the…

Elucidating the role of Heat shock proteins in poly glutamine (Poly Q) model in Dictyostelium discoideum . Introduction : Expansion of CAG trinucleotide repeats encoding poly glutamine (poly Q) tract in other wise unrelated proteins are responsible to atleast nine diseases . These diseases include Huntington’s disease (HD), spinobulbar muscular atrophy, dentatorubral pallidoluysian atrophy, and spinocerebellar ataxia (SCA) types 1, 2, 3, 6, 7, and 17.(1) Clinical features include ataxia and…

mechanical, chemical or electrical properties of the chosen materials. In this work, the prepared samples are studied using various techniques given below. • Powder X-ray diffraction(PXRD) • Ultraviolet –Visible spectrometry(UV) • Scanning electron microscopy(SEM) • Energy dispersive X-ray spectroscopy(EDS) 1.8.1 Powder XRD analysis (PXRD) The structural information of the prepared samples is examined through powder X-ray diffraction. X-ray crystallography is a tool, which is used to identify…

Electron microscope (Manning, n.d.) is the instrument used to magnify different scientific artifacts with the used of electron beams to create the illustration of the sample, and has the capacity to magnify two million times of the original specimen. The development of the electron microscope was first known in the year 1931 because Ernst Ruska and Maximoll Knoll magnified electron image successfully, but the equipment was actually constructed in 1933 (Innes, n.d.). The concept of the electron…

The surface morphology was investigated using a transmission electron microscopy (TEM, JEM- 2100F, JEOL Co., Japan). Laser diffraction (LD) analyzer (SALD- 2300, Shimadzu Co., Japan) was used to determine particle size of the synthesized iron particles after 30 min of ultra-sonication (US-101, SND Co, Ltd, Japan) . In order…

SAMPLE PREPARATION: Wilcox shale and Pottsville shale samples are tested with the indentation method in this experiment. Both samples are quartz rich and silty shales which contain about 45 to 50% of quartz, 40 to 45% of clays and about 5% of plagioclase. Wilcox shale sample is from Louisiana and formed in upper Cretaceous while Pottsville shale samples are from Alabama and formed in upper Pennsylvanian. These two type of shale rocks are chosen because they are “local” rocks which was abundant…