Unravelling Deconstruction: A Comprehensive Examination of its Qualitative Research Method and Application in Historical Texts

This research endeavors to delve into the qualitative research method of deconstruction and its profound application in deciphering the nuanced meanings within historical texts. Utilizing a review methodology, this study takes the form of a comprehensive review article. Deconstruction, as both a theory and practical approach to text reading, challenges the prevailing notion that language systems inherently establish coherence or unity in literary texts, aiming to uncover definitive meanings. The primary objective of deconstruction is to express concepts qualitatively and analytically. Research questions are tailored to the type of text under consideration, guided by the researcher's decisions. For instance, the groundbreaking concept of "explanatory and inquiry" emerged in the literary domain, maintaining its relevance within academic institutions and expanding to encompass various conceptual frameworks. Deconstruction extends its reach into social thinking and speeches, involving critical re-examination of historical texts to glean insights into historical facts. Essentially akin to metaphysical criticism, the deconstruction method was founded by Jacques Derrida, an Algerian philosopher of French origin, whose theories significantly influenced postmodern philosophy and literary criticism

Foreign Aid, Economic Growth, and Policies

The aid-growth relationship has been reviewed under various macroeconomic policy environments. This paper analyzes similarities and differences in the sources of data, types of data, and various types of methodologies used in some of the most recent and widely debated literature regarding the relationship between foreign aid and economic growth under various fiscal, monetary, and trade policies. Different studies have ended up with different outcomes. Some studies find positive aid-growth relationship under good policy environment; some find non-existent aid-growth relationship whereas some others find positive aid-growth relationship without being conditional on any kind of policy

Species Specificity and Cross-species Transition in Relation to SARS-CoV-2 Spike Proteins

Coronaviruses are known as envelope RNA viruses that are able to infect and manifest disease in various avian and mammalian species. They have the ability to participate in cross-species transmission as seen in the human coronavirus, Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV) in 2002. The most recent emergence of a novel coronavirus, SARS-CoV-2, has entered the world and presents similarities to known human coronaviruses. Mechanisms of viral entry and receptor interactions are key to understanding the process of transmission. Further elaboration will be presented on cross-species transmission and the role of viral proteins in spreading the virus

Spontaneous Emission Enhancement of CdSe Quantum Dots Embedded in a Two-dimensional Photonic Crystal L3 Nanocavity

Two-dimensional photonic crystal nanocavities were designed to tailor cavity quantum electrodynamics. Enhancing the spontaneous emission of low-quality factor nanocavity with embedded CdSe quantum dots (QDs) emitters is the aim of this study. Low concentration layer of CdSe QDs was sandwiched between two layers of Si2 N3 membrane using plasma-enhanced chemical vapor deposition. The modification rate in spontaneous emission of L3 nanocavity up to 2.3-fold has been observed at 629.5 nm in compare to bare cavities. High field confinement in the sub-wavelength regime became an interest field for quantum electrodynamics applications and good platform to study light matter interactions

Robust video data security using hybrid cryptography-steganography technique

The interest in the digital videos confidentiality in the current electronic and interrelated world has increased. Thus, this paper aimed at making a video steganography scheme for an acceptable security with high speed of calculation by embedding data (video frames) in other video frames. The techniques of embedding and encrypting video frames in a cover video file were done through two ways. Firstly, two keys and XOR bit operation were employed to create a large range of different keys for encryption. Secondly, a modified method of Least Significant Bit (LSB) technique was used for hiding high resolution video frames (bitmap color) in selective cover video frames, offering two security layers. The procedures of encrypting and hiding video data were successfully tested on many secret videos such ad Eye Video, Secret Medicine Video and Traffic Video. All experiments were conducted using MATLAB-GUI software, representing an efficient and easy tool for video management supported by powerful testing tools as histograms and mathematics for video quality. Experimental result demonstrated a good performance with low correlation and very high PSNR of the Stego video frames

Plasmonic gold nanodiscs fabricated into a photonic-crystal nanocavity

We fabricate and characterise an optical structure consisting of a photonic crystal L3 nanocavity containing two gold nanodisks placed close to a field antinode. We use finite difference time domain (FDTD) modelling to show that the optical properties of the nanocavity are sensitive to the physical separation between the gold nanodisks, and that at reduced separation, the q-factor of a cavity mode polarised parallel to the dimer long-axis is reduced, indicating coupling between the cavity mode and a localised plasmon. Preliminary experimental measurements indeed indicate a damping of the cavity mode in the presence of the dimer; a result consistent with the FDTD modelling. Such a scheme may be used to integrate plasmonic systems into all-optical photonic circuits

A chemical sensor based on a photonic-crystal L3 nanocavity defined in a silicon-nitride membrane

The application of a silicon-nitride based L3 optical nanocavity as a chemical sensor is explored. It is shown that by adjusting the thickness of an ultra-thin Lumogen Red film deposited onto the nanocavity surface, the fundamental optical mode undergoes a progressive red-shift as the layer-thickness increases, with the cavity being able to detect the presence of a single molecular monolayer. The optical properties of a nanocavity whose surface is coated with a thin layer of a porphyrin-based polymer are also explored. On exposure of the cavity to an acidic-vapour, it is shown that changes in the optical properties of the porphyrin-film (thickness and refractive index) can be detected through a reversible shift in the cavity mode wavelength. Such effects are described using a finite difference time-domain model

Comparative Quality Analysis between Tap Water and Bottled Water: A Case Study of Koya City in Iraq

Recently, bottled water consumption has been increasing significantly, even when the quality of tap water is considered excellent, which contributes to plastic pollution. Besides, reducing the use of plastic generally is recommended world widely, as its consumption is in an alarming rate. Therefore, this study aims to compare the tap and bottled water and manifest the reasons behind choosing the bottled water, which is less comfortable and often more expensive over the tap water. In this study, samples have been taken from both bottled and tap water in Koya city from November 2020 to May 2021 to test their quality using PH, DO, EC, and TDS meter, hardness was determined by complexometric titration method at 21°C, and XRF spectrometers. According to the quality standards, most of the variables were in a permissible range, except for dissolved oxygen and Aluminum content in both types of water and TDS for two types of bottled water. However, the quality of tap water was much safer to be used, as compared with the bottled water.&nbsp

Bioremediation Ability of the Local Isolate Enterobacter cloacae from Disposal Site

Illegal dumping is a serious problem that needs to be addressed immediately to preserve human health and the environment as if the pollution that arises from it reaches the groundwater, complications of the remediation processes will increase. To decontaminate the organic and inorganic components, bioremediation seems to be the most environmentally friendly and economically viable technique without further treatment as reported by many studies. In this investigation, samples were taken from the soil of the main dumping area in Koysinjaq in Kurdistan Region of Iraq to determine the most potent bacteria to remediate the existed pollutants. The existence of non-essential minerals and organic compounds in the soil sample was detected using X-ray fluorescence device, and ethane and 1,2-dichloroethane solvents separating technique, respectively. Then, from the same samples, three different naturally occurring bacteria were isolated and cultured under optimized conditions then stimulated for a good result. Finally, spectrophotometer was set at wavelength of 600 nm and used to detect the heaviest growth of bacteria after incubating the cultured bacteria on a mineral salt broth medium with the extracted pollutants at pH 7.0 overnight at 32°C. Based on the highest absorbance, the most effective type of bacteria (Enterobacter cloacae) was chosen among others to remediate the organic components in which approximately 90% of them are plastics, medical waste, municipal waste, electrical items, and hydrocarbons, and some heavy metals, for instance aluminum and lead, which were found in the soil