Current Chinese Science - Volume 1, Issue 2, 2021

This paper is devoted to understanding relative navigation models that are used for space vehicles. The relative navigations models and approaches which are based on different systems (Inertial Navigation Systems (INS) Navigation Satellite System (GNSS) , Laser, Vision- Based, etc.) are compared. These models and approaches can be used individually or combined for solving relative navigation problems. Advantage Read More

Among the huge number of fluorescent compounds described recently, pyrazole derivatives could play a paramount role in the design of probes for bioimaging applications–an important and simple tool for modern biology because of their easy synthetic methodologies, remarkable optical properties and chelating points. In this mini-review, we highlighted some pyrazole derivatives that have shown remarkable performance Read More

Background: Resistance to the critical first line anti-tubercular drug, Pyrazinamide, is a significant obstacle to achieving the global end to tuberculosis targets. Approximately 50% of multidrug- resistant tuberculosis and over 90% of extensively drug-resistant tuberculosis strains are also Pyrazinamide resistant. Pyrazinamide is a pro-drug that reduces the duration of tuberculosis therapy time by 9-12 months, while used as Read More

Background: Selection of Sustainable Suppliers is a key term in sustainable supply chain management. This is the reason to choose the supplier who will support the company to implement sustainability in its business, especially in the supply chain. Objective: The aim of this paper is to establish a new innovative model for decision-making based on a fuzzy approach. Methods: This decision-making problem is solved by applying mul Read More

Background: Probiotic cellular components could be an interesting alternative to live probiotics, which could potentially cause safety problems in open aquatic environments. Objective: The cell wall (CW), peptidoglycan (PG) and lipoteichoic (LTA) were extracted from probiotic strain of Bacillus pumilus SE5, and these biomolecules were used to develop the possible application in fish aquaculture. Methods: Grouper (Epinephelus c Read More

The results of spectral-kinetic studies in the field of nanophotochromism of the core128;’ shell type hybrid compounds are integrated. The properties of photochromic nanoparticles based on photochromic spirocompounds (spiropyrans and spirooxazines), chromenes, and diarylethenes and nanoparticles of noble metals (Ag and Au), diamonds, graphene and its oxide, silica, fullerenes, and quantum dots are considered. P Read More

Background: The development of environment-friendly and cost-effective palladium( Pd) based nanocomposite is of high interest for catalytic applications. Objective and Methods: In this paper, a porous Pd/two-dimensional-material (graphene oxide (GO) and reduced graphene oxide (rGO)) nanocomposite was synthesized with a green and facile method, without adding any additional reductant, surfactant and special solvent Read More

Background: Hydrophilic nanomaterials have been extensively exploited their applications in the field of hybrid water treatment membranes. However, some of the modification process to nanomaterials may be complicated, and the nonselective pores caused by the poor compatibility between nanoparticles and the polymer matrix impair the rejection efficiency for ultrafiltration application. Thus, it is highly desirable to Read More

Objective: To review the available sole anti-inflammatory immunomodulators or adjuvants, different from pro-inflammatory ones, which elicit a Th2 immunity while inhibiting but without abrogating Th1/Th17 immunities. Adjuvants that are useful to develop vaccines for T-cell mediated autoimmune conditions. Methods: A literature search using PubMed and Google Scholar databases was made to identify reports regardi Read More

Background: Coronavirus disease (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is designated as a global pandemic. Elderly men with underlying medical conditions are more susceptible to SARS-CoV-2 infection and usually develop severe/ critical illness, therefore more attention we should be paid to them. Objective: Describe methods that may help old patients with COVID-19 recover. Me Read More