Science essays

INTRODUCTION Sending signals through optical fiber is reliable and fast, but because of internal absorption and other unwanted effects such as Atmospheric turbulence, they lose photons with the losses increasing the farther the signal must travel. It’s very problematic when the number of photons being sent is small hence requires quantum repeaters. This is thoughtful … Read more

Data Data is an any concept of a matter or incident. “Datum” is a Greek word. It’s plural from is “Data”. This means to give or something given. Data comes from observations made upon reality. A data is a collection of statical information of values of the variable of interest in a study. Source of … Read more

In this dissertation work we focus is on misbehaviours that make the stateless solutions less robust than stateful solutions. In particular, focus was on packet labels being corrupted. We do not explicitly address misbehaviours for which stateful solutions are equally vulnerable, such as IP address spoofing or a user gaining unfair advantage by opening a … Read more

Bael Fruit (Aegle marmelos L. Correa) is an indigenous fruit known in India from prehistoric times. The bael fruit is native to india, but most commonly found throughout the Indian peninsula (Rahman and Pravin 20014). Bael also grows in Pakistan, Sri Lanka, Bangladesh, Burma, Thailand and most of the southeastern countries (Rakesh et al., 2005). … Read more

As introduced in Chapter 1, gas fluidization occurs when gas lifts-up a certain mass of powder and starts to behave fluid-like. The fluidized bed behavior is dependent on superficial gas velocity (u0) and powder/- particle properties. Most influential powder properties are particle density (½p ) and particle diameter (Dp ). The fluidization behavior can be … Read more

The Black Rhinoceros is classified as critically endangered and are on the brink of extinction according to the IUCN Red List of Threatened Species. They’re 1.4-1.8m tall and weigh between 800-1400kg. The Black Rhinoceros have a pointed upper lip, two horns which grows up to 1.5m long and they’re actually grey in colour not black. … Read more

It is the thermochemical conversion of organic matter at high temperatures with partial oxidation. Energy in organic matter produces combustible gases (CO, CH4 and H2) and minor products (char, water and condensable matter). The first step, called Pyrolysis, decomposes organic matter by heat to produce gaseous and volatile matter and char, which is non-volatile, containing … Read more

The early Greeks were the first Western masterminds to hypothesise the likelihood of there being a different universe facilitating life. Later on in the sixteenth century, the use of the Copernican model of the heliocentric solar system immediately propelled numerous sorts of extraterrestrial scenarios. The congregation couldn’t help the contradicting speculation of there being different … Read more

The delivery of QDs For biological applications into biological bodies for cell imaging is a necessary requirement. However, most water-soluble QDs have the negative charges on their surface, which allows QDs to disperse in aqueous solution by the electrostatic repulsion (19, 20) also makes those QDs hardly bind on the surfaces of living cells. The … Read more

Fig. 4a shows the concentration dependent PL spectra of BC1-xZSO:xEu2+ phosphors (x = 0.02, 0.04, 0.06, 0.10, and 0.12 mol) under 340 nm excitation. This series of all samples produce a strong and broad green emission band with a peak around 502 nm, which corresponds to the 4f65d1’4f7 transition of the Eu2+ ion. The emission … Read more

ABSTRACT The Polycomb repressive complex (PRC) is a conserved mechanism for generating trimethylation of histone 3 at lysine 27 (H3K27me3), a mark that is associated with repressed chromatin. The repression of key regulatory genes by Polycomb group mediated H3K27me3 is critical for maintaining cell states and cellular reprogramming in both plants and animals. The aim … Read more

Abstract: Auxin adjusts diverse features of plant growth and development. The most common of Auxin is indole-3-acetic acid (IAA), is a weak acid and its intercellular movement is facilitated by auxin influx and efflux carriers. Polarity of auxin movement is provided by asymmetric localization of auxin carriers (mainly PIN efflux carriers). PIN-FORMED (PIN) and P-GLYCOPROTEIN … Read more

Abstract The past half of a century has seen increasing attention focused on the development of polymer nanoparticle based drug delivery systems as being capable of improving the efficacy and obviating the systemic side effects of a wide range of antineoplastic drugs in human cancer therapy. This has led to the emergence of the multifunctional … Read more

There have been many detailed studies on the folding of small monomeric proteins (ref…………………………………………..). Even there are many reports on DHFR protein of different origins (ref…………………………………………….). However, equilibrium unfolding and refolding study of zebrafish DHFR has not been reported till date. In the present work, we have established the equilibrium folding scheme of zDHFR after … Read more

Total RNA were extracted with good quality and quantity to produce cDNA(fig 1). The number of bands between five temperature treatments were compared. The -5��C treatment had made more band than another treatments (fig2). It could be implied that between five cold temperatures the -5��C is the best temperature in gene expression profile in Viola. … Read more