Usage and Expectations of Web 2.0 Tools in E-Learning Platforms: A Study on Basic Medical Science Students

his paper is based on a survey for analyzing the awareness of the students about Web 2.0 applications and their expectations during the integration of e-learning technologies. Major finding are wikis, instant messaging, media sharing, social networking and VoIP show high usage by major group of students, where very less usage of podcasts, social bookmarking, blogs, feeds is found. More students mainly want wikis, forums to be integrated to in e-learning system along with media/file sharing, streaming, chat rooms, and blogs and bookmarking

Applications of Artificial Intelligence in Robotics

Artificial Intelligence is a theory of the cognitive perspective in the province with robotics to human communication with the perception of action. The ability to develop computer systems would require human intelligence to perform tasks [1]. Artificial Intelligence plays a prominent role in robotics in providing effective analytical business solutions like human behavior in the real world. The common root of artificial intelligence and robotics has a scientific interaction that transforms technological improvement in robotics application and utilization and has a potential for future robotics in various applications and AI technologies. The study of the creation of intelligent robots in Artificial Intelligence is an entity for different objectives and applications. It is known to many people that artificial intelligence is a subset of robotics. Robots have human-like behavior by which they can perform tasks like a human if enabled with Artificial Intelligence

Continuous Droplet Coalescence in a Microchannel Coflow Using Bulk Acoustic Waves

The coalescence of liquid droplets with a liquid stream has profound importance in various emerging applications, such as biochemical assays. Acoustic force-based droplet manipulation, which offers unique advantages, is consequently gaining attention. However, the physics of acoustics-driven coalescence of liquid droplets with a liquid stream is not well understood. Here, we unravel the mechanism of coalescence of aqueous droplets flowing in an immiscible (oil) phase with a coflowing aqueous stream, when the system is exposed to acoustic radiation force due to bulk acoustic waves. Our study reveals that the acoustic coalescence phenomenon is governed by the interplay between two important timescales, acoustic migration timescale (τac) and advection timescale (τadv), that underpin the phenomenon. We find that the phenomenon is also governed by the acoustic capillary number (Cac) and relative widths of the coflowing oil and aqueous streams (i.e., Waq and Woil). Our results show that, if CacWoil are satisfied to ensure the stability of the streams and positioning of the acoustic node in the aqueous phase, respectively, continuous coalescence is observed for (τadv/τac)≥0.85. We exploit the phenomenon for the extraction of droplet contents (beads and cells) into an aqueous stream

Bulk Acoustic Wave Activated Droplet Generation and Isolation

On-demand droplet generation from a continuously flowing stream of aqueous phase has profound applications in dropletbased microfluidics for rare event encapsulation studies. Here, we present acoustic relocation-based droplet generation from co-flowing immiscible fluids in an on-demand manner using bulk acoustic wave (BAW). After on-demand droplet generation, droplets are isolated using the same acoustic force resulted from BAW. Two different acoustic relocation regimes are observed, namely, stream to droplet relocation and stream to stream relocation regime. Our experimental observation reveals that to generate droplets from co-flowing fluids, the following conditions must be satisfied. First, the co-flowing immiscible stream should be maintained in acoustic relocation conditions (Cac > 1); Second, the capillary instability should be triggered during the relocation process, which happens at capillary numbers of the co-flowing fluids should be less than 0.2 (CaL and CaH < 0.2). Finally, using BAW microfluidic chip, droplets containing microparticle were produced ondemand from co-flowing streams wherein the microparticles are added in one of the phases

Biological and structural properties’ interpretation on antitumour drug 3-(2-aminoethyl) indole (tryptamine) using molecular spectroscopy and computational tools

In this work, the known and unknown structural as well as biological properties of 3-(2-aminoethyl) indole (tryptamine) were interpreted using molecular spectroscopy (FT-IR, FT-Raman, NMR and UV–Visible) and cheminformatic tools. The supportive drug-related information was gained by analysing the obtained data which will be useful for the drug chemist for the pharmaceutical research. The important biological properties of the present chemical species satisfied the Lipinski five rules and it was opt to fabricate complex antibiotic compounds. The acquired charge potential load for creating antibiotic strain on compositional parts was keenly observed from the obtained data and it was evaluated by the vibrational analysis and Mulliken charge profile. From the NMR data, the chemical nodal points were noted and their movement around the molecule was carefully monitored. The degenerate and non-degenerate energy profile of orbital interaction system was studied and the link of chemical reactivity path was identified. The significance of excited electronic transitions among non-bonding molecular orbital system was justified and their transitional energy coefficient was determined. The toxicity level was checked from the chirality characteristics and enantiomer structure obtained from vibrational circular dichroism profile

Reversible Stream Drop Transition in a Microfluidic Coflow System via on Demand Exposure to Acoustic Standing Waves

Transition between stream and droplet regimes in a coflow is typically achieved by adjusting the capillary numbers (Ca) of the phases. Remarkably, we experimentally evidence a reversible transition between the two regimes by controlling exposure of the system to acoustic standing waves, with Ca fixed. By satisfying the ratio of acoustic radiation force to the interfacial tension force, , experiments reveal a reversible stream drop transition for , and stream relocation for . We explain the phenomenon in terms of the pinching, advection, and relocation timescales and a transition between convective and absolute instability from a linear stability analysis [P. Guillot, Phys. Rev. Lett.99, 104502 (2007)PRLTAO0031-900710.1103/PhysRevLett.99.104502]