In this study, we explored the application of lipid-shelled, gas-filled microbubbles as a method for creating on-demand microporous hydrogels for cartilage tissue engineering. The technique allowed for homogenous distribution of cells and micropores within the scaffold, increasing the absorption coefficient of large solutes (70kDa dextran) over controls in a concentration-dependent manner. The ...

Aims. Devices that allow using the functionality of natural hand movements are of the greatest interest. The purpose of this study is to select areas of research at the intersection of several fields of science – biomechanics and cybernetics to develop scientific and technical approaches to track the movements of the operator's fingers and form feedback tactile and force communication received ...

In this study, the researchers investigated a critical aspect of EFL/ESL writing pedagogy-the impact of teacher written commentary on student writer’s earlier drafts. Compositions of 80 Iranian undergraduate English majors were commented on using a trio of imperatives, statements, and questions on both content and form. Overall, the results indicated that the comments in the imperative form hel...

Researchers have paid almost no attention to the narrative comments that typically accompany multirater feedback reports despite the fact that both anecdotal and empirical evidence suggest that feedback recipients devote considerable attention to such comments. The authors examined improvement in upward feedback ratings over a 1-year period for 176 managers as a function of (a) the number of na...

A feedback system should be developed for the Blockchain Academy Mittweida, which can store courses offered anonymously and without duplication. It possible, removing anonymity of users, to determine whether has already been submitted by a user. For this purpose, technology linkable ring signatures was used. This allows users grouped into submit anonymously. To interest in understanding solutio...

In this paper, we relate the feedback canonical form \textbf{FNCF} of differential-algebraic control systems (DACSs) with famous Morse \textbf{MCF} ordinary differential equation (ODECSs). First, a procedure called an explicitation (with driving variables) is proposed to connect two above categories by attaching DACS class ODECSs kinds inputs (the original input $u$ and vector variables $v$). T...

This paper studies the technique of the composite nonlinear feedback (CNF) control for a class of cascade nonlinear systems with input saturation. The objective of this paper is to improve the transient performance of the closed-loop system by designing a CNF control law such that the output of the system tracks a step input rapidly with small overshoot and at the same time maintains the stabil...