Retraction Note: Mathematical analysis of COVID-19 pandemic by using the concept of SIR model.

[This retracts the article DOI: 10.1007/s00500-021-06133-1.].

Prioritization of thermal energy techniques by employing picture fuzzy soft power average and geometric aggregation operators.

Energy storage is a way of storing energy to reduce imbalances between demand and energy production. The ability to store electricity and use it later is one of the keys to reaching large quantities of renewable energy on the grid. There are several methods to store energy such as mechanical, electrical, chemical, electrochemical, and thermal energy.

Efficacy and Safety of Sofosbuvir and Velpatasvir Combination for the Treatment of Chronic Hepatitis C in Patients With or Without Cirrhosis.

Background and aim For years, interferon-based treatment has been offered to patients with chronic hepatitis C virus (HCV) infection; however, the complexity of the treatment, efficacy, and adverse effects were the primary concerns. All these concerns were addressed with the introduction of directly acting antivirals (DAAs) to treat chronic HCV. Sofosbuvir and velpatasvir are second-generation DAAs used in combination for the treatment of chronic HCV infection.

Analysis of Communication and Network Securities Using the Concepts of Complex Picture Fuzzy Relations.

In our lives, we cannot avoid the uncertainty. Randomness, rough knowledge, and vagueness lead us to uncertainty. In mathematics, the fuzzy set (FS) theory and logics are used to model uncertain events.

Investigation of Cyber-Security and Cyber-Crimes in Oil and Gas Sectors Using the Innovative Structures of Complex Intuitionistic Fuzzy Relations.

Recently, there has been enormous development due to advancements in technology. Industries and enterprises are moving towards a digital system, and the oil and gas industries are no exception. There are several threats and risks in digital systems, which are controlled through cyber-security.

T-spherical fuzzy power aggregation operators and their applications in multi-attribute decision making.

The paper aims to present the concept of power aggregation operators for the T-spherical fuzzy sets (T-SFSs). T-SFS is a powerful concept, with four membership functions denoting membership, abstinence, non-membership and refusal degree, to deal with the uncertain information as compared to other existing fuzzy sets. On the other hand, the relationship between the different pairs of the attributes are well recorded in terms of power operators.

HIV-1 infection dynamics and optimal control with Crowley-Martin function response.

Background And Objective: As we all know, mathematical models provide very important information for the study of the human immunodeficiency virus type. Mathematical model of human immunodeficiency virus type-1 (HIV-1) infection with contact rate represented by Crowley-Martin function response is taken into account. The aims of this novel study is to checkthe local and global stability of the disease and also prevent the outbreak from the community.

Steroidal Alkaloids as an Emerging Therapeutic Alternative for Investigation of Their Immunosuppressive and Hepatoprotective Potential.

The compounds, sarcovagine-D, alkaloid-C, and holaphylline isolated from were found to possess immunosuppressive activities. These compounds were characterized for inhibition on human T-cells proliferation and IL-2 production. The compounds showed significant immunosuppressive effect on IL-2 production as well as on phytohemagglutinin stimulated T-cell proliferation in a dose dependent manner.

Hypoglycemic potential of herbal product dolabi compared with pioglitazone in streptozotocin-induced diabetic rats.

Objectives: To investigate and compare the hypoglycemic potential of commonly used polyherbal formulation dolabi with pioglitazone in streptozotocin-induced diabetic rats.

Methods: A total of 24 adult male Wistar rats were randomized into diabetic control group, diabetic group receiving dolabi (17.6 mg kg day), diabetic group receiving dolabi (35.

Liraglutide in diabetes mellitus: More facts and findings.

Liraglutide exert favorable effects on most of the diabetes associated cardiovascular (CV) risk factors and this study was designed to further explore the benefits of liraglutide by observing its effect on plasma sialic acid (PSA) in diabetic rats. A total of 30 streptozotocin induced (50 mg/Kg; i.p.

A comparison of the effect of glitazones on serum sialic acid in patients with type 2 diabetes.

Although management of hyperglycaemia represents one of the principal treatment goals of diabetes therapy, the high incidence of cardiovascular (CV) complications in diabetes also needs effective management. Therefore, the present study was designed to determine and compare the effect of glitazones on serum sialic acid (SSA), a known risk marker for CV disease, along with fasting plasma glucose (FPG), glycohaemoglobin (HbA1-c) and blood lipids, in overweight, previously only diet-treated patients with type 2 diabetes (n=60). The study was conducted for a period of 12 months.