Comparing Classification and Regression Tree and Support Vector Machine for Analyzing Sentiments for IPL 2016

Social media is incredibly popular method for expressing opinions and interacting with other people in the online world. Twitter is one of the most frequent online social media and micro blogging services. It enables users to communicate with others and get updates on topics and events that interest them. Tweets can reflect public attitude when taken in aggregation, for example during events such as IPL 2016.Machine learning makes sentiment analysis more effective. In this paper, we examine the evaluation of machine learning algorithms (CART and SVM) in R to find the public opinions about event IPL 2016

Establishing New Links Between HRM Practices and Knowledge Workers’ Retention in Healthcare Sector: Knowledge Sharing Generating Moderating Effects

Knowledge sharing is the fundamental measure through which knowledge workers can significantly contribute to innovation and eventually the competitive advantage of the organization. Drawing upon the knowledge-based view of firms, the present study aims to examine the moderating role of knowledge sharing on the relationship between HRM practices and knowledge workers’ retention in the healthcare sector. After the COVID impact, healthcare knowledge workers have become a point for wide scholarly discussion and appropriate HRM practices should be implemented to amplify their probability of a longer stay in the organization. Hence, this research has incorporated PLS-SEM for empirical investigation which is based on prior discussions with some healthcare experts. The results propagate that knowledge sharing moderates HRM practices-retention linkage except training and development which is found to be statistically insignificant. The empirical evidence generated could be crucial for researchers and practitioners within the healthcare sector, thereby, extending assistance in establishing world-wide recognition

New method for nonparaxial beam propagation

A new method for solving the wave equation is presented that is nonparaxial and can be applied to wide-angle beam propagation. It shows very good stability characteristics in the sense that relatively larger step sizes can be taken. An implementation by use of the collocation method is presented in which only simple matrix multiplications are involved and no numerical matrix diagonalization or inversion is needed. The method is hence faster and is also highly accurate

Golden spiral photonic crystal fiber: polarization and dispersion properties

A golden spiral photonic crystal fiber (GS-PCF) design is presented in which air holes are arranged in a spiral pattern governed by the golden ratio, where the design has been inspired by the optimal arrangement of seeds found in nature. The birefringence and polarization properties of this fiber are analyzed using a vectorial finite-element method. The fiber that is investigated shows a large modal birefringence peak value of 0.016 at an operating wavelength of 1.55 μm and exhibits highly tuneable dispersion with multiple zero dispersion wavelengths and also large normal dispersion. The GS-PCF design has identical circular air holes that potentially simplify fabrication. In light of its properties, the GS-PCF could have application as a highly birefringent fiber and in nonlinear optics, and moreover the 2D chiral nature of the pattern could yield exotic properties

Hut-like pillar array Si Solar Cells

A good texturing pattern for solar cells needs to combine low Reflectance over a large wavelength range and low surface recombination to maximize the output. Nanowire and pyramid patterns offer low Reflectance in the longer and shorter wavelength regions respectively. This paper introduces an exciting new “hut” like texturing pattern with excellent performance, improving that of nanowires and pyramids; over the long and short wavelength ranges respectively. Furthermore, we analyze the effect of different structural parameters such as height, diameter, Surface Coverage (SC) and ϑ, on the solar cell performance

Non-paraxial Split-step Finite-difference Method for Beam Propagation

A method based on symmetrized splitting of the propagation operator in the finite difference scheme for non-paraxial beam propagation is presented. The formulation allows the solution of the second order scalar wave equation without having to make the slowly varying envelope and one-way propagation approximations. The method is highly accurate and numerically efficient. Unlike most Padé approximant based methods, it is non-iterative in nature and requires less computation. The method can be used for bi-directional propagation as well

Is Bayh-Dole Good for Developing Countries? Lessons from the US Experience

The US Bayh-Dole Act encourages university patenting of inventions arising from publicly funded research. Lessons from three decades of US experience serve as a cautionary tale for those countries that may choose to emulate Bayh-Dole

Segmental odontomaxillary dysplasia

Segmental odontomaxillary dysplasia is a type of hemi-maxillofacial dysplasia. It is a sporadic, mesoectodermal dysplasia that presents early in life, possibly as early as in utero and exhibits male gender predominance (1.7:1.0). Its features include enlargement of the soft tissue and/or bone of one hemimaxilla that may produce mild facial asymmetry, sclerotic radiographic bone changes and dental developmental abnormalities. The dense bone, which often exhibits a radiographic vertical orientation of the trabecular bone pattern, is generally associated with delayed eruption of the teeth. Congenitally missing premolar teeth (eithe or both) is a common feature of this condition that is of significant diagnostic value. Ipsilateral cutaneous findings have been reported in 23% of cases. Immature woven bone forming irregular patterns are seen histologically. Herein, we present a case report on segmental odontomaxillary dysplasia in a 13-year-old boy