Optimization of Circuits for IBM's five-qubit Quantum Computers

IBM has made several quantum computers available to researchers around the world via cloud services. Two architectures with five qubits, one with 16, and one with 20 qubits are available to run experiments. The IBM architectures implement gates from the Clifford+T gate library. However, each architecture only implements a subset of the possible CNOT gates. In this paper, we show how Clifford+T circuits can efficiently be mapped into the two IBM quantum computers with 5 qubits. We further present an algorithm and a set of circuit identities that may be used to optimize the Clifford+T circuits in terms of gate count and number of levels. It is further shown that the optimized circuits can considerably reduce the gate count and number of levels and thus produce results with better fidelity

Perception of Students and Teachers towards Semester System: A Study in Some Selected Degree Colleges of Nagaon town of Nagaon District of Assam

The present study was conducted on 133 undergraduate students and 44 teachers selected at random from four selected degree colleges affiliated to Gauhati University from Nagaon town of Nagaon district of Assam to find out their perception towards semester system. Self structured questionnaire revealing perception towards five dimensions of semester system- curriculum, syllabus coverage and regularity of classes, teachers and methods of teaching, evaluation and feedback, and availability of resources was administered. The collected data were analyzed through using frequency, percentage, mean and sd. The research result revealed that the perception of students towards internal assessment and overall evaluation is not quite satisfactory. Most of the respondents even don’t understand the evaluation in CGPA. The study further revealed lack of required resources particularly information resources in degree colleges to make semester system effective and successful. In this way, the findings of the present study yielded the necessity of developing strategies by all the stakeholders to arrange for minimum resources and facilities which have a direct bearing on students’ achievement. Keywords: Perception, Semester system, Curriculum, Teaching methods, Evaluation and feedback

LexOWL: A Bridge from LexGrid to OWL

The Lexical Grid project is an on-going community driven initiative that provides a common terminology model to represent multiple vocabulary and ontology sources as well as a scalable and robust API for accessing such information. In order to add more powerful functionalities to the existing infrastructure and align LexGrid more closely with various Semantic Web technologies, we introduce the LexOWL project for representing the ontologies modeled within the LexGrid environment in OWL (Web Ontology Language). The crux of this effort is to create a “bridge” that functionally connects the LexBIG (a LexGrid API) and the OWL API (an interface that implements OWL) seamlessly. In this paper, we discuss the key aspects of designing and implementing the LexOWL bridge. We compared LexOWL with other OWL converting tools and conclude that LexOWL provides an OWL mapping and converting tool with well-defined interoperability for information in the biomedical domain

Coroneologisms and Word Formation Processes in Hindi-English Codemixed Words

The COVID-19 pandemic came with a flux of new words, terminologies, and phrases, which led to the rapid coinage or neologisms in the world's different languages. These lexical innovations may take place within one language as well as with the combination of two different languages. Therefore, this paper scrutinizes coroneologisms and word-formation processes in Hindi-English code-mixed words. Such a phenomenon happened due to the acceptance of English by Indians besides their mother tongue which makes them bilingual. The data were gathered from newspapers, blogs, social media, TV news, etc. Next, the linguistic analysis of the data revealed different types of word classes in Hindi-English codemixed words such as compounding, affixation, blending, and reduplication. Out of these, compounding and borrowing were reported as the most productive types of coroneologisms in Hindi-English code-mixed words.

An Intelligent Obstacle and Edge Recognition System using Bug Algorithm

Obstacle avoidance is an important task in robotics as the autonomous robot's aim is to reach the destination without collision.  One type of autonomous robot that can detect obstacles and edges and take alternative paths free of obstacles and edges is a real-time obstacle avoiding edge detection robot. This paper proposes a robotic Robot with an intelligence built into it that guides itself whenever an obstacle comes along its way by bug algorithm. This robotic Robot is constructed using AT mega 8 families’ micro-controller (Arduino Uno R3). The ultrasonic sensor is used to detect any obstacle with edges and sends a command to the microcontroller. The micro-controller, based on the received input signal, redirects the robot to push in an alternative direction by actuating the motors that are interfaced with it via a motor driver. Depending on the situation the robot is able to choose the correct path [1]. A decision making process of obstacle avoiding edge detection occurs spontaneously here. This robot was designed to think about its day-to-day potentialities

An advanced and secure framework for conducting online examination using blockchain method

Nowadays, the online platform has been used by many educational institutions, to conduct tests, especially for secondary to tertiary level students. The most popular online test program is run by providing a user id and password to the candidates, and subsequently, they log in to the given web page to answer the questions. However, this system has a lot of bugs, the password can be misused followed by cheating in the test. This shows the importance of a secure system being implemented to avoid such a problem. This paper presents a blockchain framework that secures the online examination system. The proposed framework has been used to secure a data management system that connects to existing educational data. Institutions can simply compile their data history without requiring a copy from the central servers. The proposed blockchain framework improves data security and removes any potential cheating between users or third-party institutions that access applications and services. In this regard, this study provides a secured framework for conducting and evaluating subject tests to ensure consistency between student and server, and secure delivery of questionnaire from the server

Author Correction: The genetic legacy of continental scale admixture in Indian Austroasiatic speakers

This Article contains errors in the Methods section, under subsection ‘Samples collection and genotyping’

3D printing in biomedicine: advancing personalized care through additive manufacturing

The integration of three-dimensional (3D) printing techniques into the domains of biomedical research and personalized medicine highlights the evolving paradigm shifts within contemporary healthcare. This technological advancement signifies potential breakthroughs in patient-specific therapeutic interventions and innovations. This systematic review offers a critical assessment of the existing literature, elucidating the present status, inherent challenges, and prospective avenues of 3D printing in augmenting biomedical applications and formulating tailored medical strategies. Based on an exhaustive literature analysis comprising empirical studies, case studies, and extensive reviews from the past decade, pivotal sectors including tissue engineering, prosthetic development, drug delivery systems, and customized medical apparatuses are delineated. The advent of 3D printing provides precision in the fabrication of patient-centric implants, bio-structures, and devices, thereby mitigating associated risks. Concurrently, it facilitates the ideation of individualized drug delivery paradigms to optimize therapeutic outcomes. Notwithstanding these advancements, issues concerning material biocompatibility, regulatory compliance, and the economic implications of avant-garde printing techniques persist. To fully harness the transformative potential of 3D printing in healthcare, collaborative endeavors amongst academicians, clinicians, industrial entities, and regulatory bodies are paramount. With continued research and innovation, 3D printing is poised to redefine the trajectories of biomedical science and patient-centric care. The paper aims to justify the research objective of whether to what extent the integration of 3D printing technology in biomedicine enhances patient-specific treatment and contributes to improved healthcare outcomes