38 research outputs found
Authentication of Images
Proposing a technique which embeds personal mobile phone numbers along with IMEI number inside the image using invisible watermarking technique.B.S. (Bachelor of Science
DEVELOPMENT AND VALIDATION OF RP-HPLC METHOD FOR SIMULTANEOUS ESTIMATION OF IVERMECTIN AND CLORSULON IN IVERCAM INJECTION
A precise, simple, accurate and selective method was developed and validate for estimation of Ivermectin and Clorsulon in Ivercam injection, Reversed phase high performance liquid chromatographic (RP-HPLC) method was developed for routine quantification of Ivermectin and Clorsulon in laboratory prepared mixtures as well as in combined dosage form. Chromatographic separation was achieved on a BDS hypersil C18 (5ÎĽ, 250 x 4.6 mm) utilizing mobile phase of filtered and degassed mixture of 60 phosphate buffer (pH 5.5 adjusted with 1% O-phosphoric acid) and Methanol (60:40 v/v) at a flow rate of 1 mL/min with UV detection at 234 nm. The method has been validated for linearity, accuracy and precision. In RP-HPLC method, the calibration graphs were linear in the concentration range of 2.5-7.5 ÎĽg/ml for Ivermectin and 25-75 ÎĽg/ml for Clorsulon with percentage recoveries of 100.34 % and 99.76% for Ivermectin and Clorsulon respectively. Conclusion: The results obtained by RP-HPLC methods are rapid, accurate and precise. Therefore proposed method can be used for routine analysis of Clorsulon and Ivermectin in injection
The evolving SARS-CoV-2 epidemic in Africa: Insights from rapidly expanding genomic surveillance
INTRODUCTION
Investment in Africa over the past year with regard to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) sequencing has led to a massive increase in the number of sequences, which, to date, exceeds 100,000 sequences generated to track the pandemic on the continent. These sequences have profoundly affected how public health officials in Africa have navigated the COVID-19 pandemic.
RATIONALE
We demonstrate how the first 100,000 SARS-CoV-2 sequences from Africa have helped monitor the epidemic on the continent, how genomic surveillance expanded over the course of the pandemic, and how we adapted our sequencing methods to deal with an evolving virus. Finally, we also examine how viral lineages have spread across the continent in a phylogeographic framework to gain insights into the underlying temporal and spatial transmission dynamics for several variants of concern (VOCs).
RESULTS
Our results indicate that the number of countries in Africa that can sequence the virus within their own borders is growing and that this is coupled with a shorter turnaround time from the time of sampling to sequence submission. Ongoing evolution necessitated the continual updating of primer sets, and, as a result, eight primer sets were designed in tandem with viral evolution and used to ensure effective sequencing of the virus. The pandemic unfolded through multiple waves of infection that were each driven by distinct genetic lineages, with B.1-like ancestral strains associated with the first pandemic wave of infections in 2020. Successive waves on the continent were fueled by different VOCs, with Alpha and Beta cocirculating in distinct spatial patterns during the second wave and Delta and Omicron affecting the whole continent during the third and fourth waves, respectively. Phylogeographic reconstruction points toward distinct differences in viral importation and exportation patterns associated with the Alpha, Beta, Delta, and Omicron variants and subvariants, when considering both Africa versus the rest of the world and viral dissemination within the continent. Our epidemiological and phylogenetic inferences therefore underscore the heterogeneous nature of the pandemic on the continent and highlight key insights and challenges, for instance, recognizing the limitations of low testing proportions. We also highlight the early warning capacity that genomic surveillance in Africa has had for the rest of the world with the detection of new lineages and variants, the most recent being the characterization of various Omicron subvariants.
CONCLUSION
Sustained investment for diagnostics and genomic surveillance in Africa is needed as the virus continues to evolve. This is important not only to help combat SARS-CoV-2 on the continent but also because it can be used as a platform to help address the many emerging and reemerging infectious disease threats in Africa. In particular, capacity building for local sequencing within countries or within the continent should be prioritized because this is generally associated with shorter turnaround times, providing the most benefit to local public health authorities tasked with pandemic response and mitigation and allowing for the fastest reaction to localized outbreaks. These investments are crucial for pandemic preparedness and response and will serve the health of the continent well into the 21st century
In Silico Study of 1,5-Bis(4-Hydroxy-3-Methoxyphenyl)-1,4-Pentadiene-3-One (Deketene Curcumin) on Crystallized Protein Structures of SARS-CoV-2
World Health Organization (WHO) reveals total
number of coronavirus cases are 5,684,802 and 352,225 deaths till today worldwide.
Coronavirus instances are nevertheless surging due to its speedy spreading
through infected patients. Therefore, in order to find potent vaccine almost
every researcher is doing hard work to find it. However, until today there is
not any availability of effective vaccine or drug for the treatment of COVID-19.
In this case, the computational approach is the good choice to identify
effective drugs and could be very useful due to its low cost, less error and less
time consumption. Here, Deketene curcumin has taken for docking study because
of its lots of biological applications such as antiviral, antimicrobial,
anti-inflammatory, antioxidant, antibiotic, and to a name of few, it is a
derivative of curcumin. In this study, five main protease crystallized COVID-19
structures (PDB ID: 6LU7, 5R7Z, 5R7Y, 5R80, 5R81) have been taken for
simulation against deketene curcumin. Required procedure for this in silico
study done through Molegro virtual docker (MVD) and Molegro Molecular Viewer
(MMV) used for visualization. The results showed H-bonding and steric
interaction between Deketene Curcumin with COVID-19 (PDB ID: 6LU7, 5R7Z, 5R7Y,
5R80, 5R81). Moldock scores of Deketene Curcumin Observed -134.198
kcal/mol, -151.972 kcal/mol, -109.224 kcal/mol, -140.741 kcal/mol and
-126.562 kcal/mol with PDB Id 6LU7, 5R7Z, 5R7Y,
5R80 and 5R81 respectively. As per our results,
it can be say that Deketene Curcumin has effective as a lead compound to find
new antiviral drug candidates against COVID-19 for possible medicinal agent.</p
ADOPTION OF DIGITIZATIONIN CONSTRUCTION MANAGEMENT
Construction industries in countries like India are continuously growing over last two decades. The main problems faced by the industry are lack of planning, technology and skilled manpower. Theresearch proves that, the construction industry is lacking in terms of adopting the digitization approach.The Information and Communication Technologies (ICT)applications have made the effective communication and monitoring possible for construction projects. Other technologies like 3D and 4D printing have made it possible to imagine the fast construction of the projects in smallest possible time