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Bhushan, Shashi,Pandey, Abhay Pratap The Korean Statistical Society 2019 Communications for statistical applications and me Vol.26 No.4
We propose new classes of estimators of population mean under non-response using bivariate auxiliary information. Some improved regression (or difference) type estimators have been proposed in four different situations of non response along with their properties and the expressions for the bias and mean square errors of the proposed estimators are derived under double (two-stage) sampling scheme. The properties of the suggested class of estimators are studied and it is observed that the proposed estimators performed better when compared to conventional estimators proposed by Singh and Kumar (Journal of Statistical Planning and Inference, 140, 2536-2550, 2010b), Shabbir and Khan (Communications in Statistics - Theory and Methods, 42, 4127-4145, 2013) and Bhushan and Naqvi (Journal of Statistics and Management Systems, 18, 573-602, 2015). A comparative study is also conducted both theoretically as well as empirically in order to support the results.
Bhushan R. Bhagat,Mahesh R. Khairnar,Samanwita Maity,Muskaan M. Sachdev,Sonal Shah,Ravina Dharamsi 대한구강악안면외과학회 2024 대한구강악안면외과학회지 Vol.50 No.2
Objectives: To access the knowledge of undergraduate and postgraduate students of the dental college on basic anatomy, physiology, clinical examination, and pathology of the temporomandibular joint (TMJ). Materials and Methods: A total of 610 undergraduate and postgraduate students of dental college, were included in this study. The questionnaire was pretested for validation and distributed online through Google forms. Results: A pairwise comparison showed that the percentage of correct answers for interns significantly differed from that of IV Bachelor of Dental Surgery (P=0.050) and postgraduate students (P=0.048) (below average: up to 6 correct answers, good: 7-11 correct answers, excellent: 12 or more correct answers). Conclusion: TMJ diseases are common in daily life but frequently go undiagnosed and untreated due to a lack of clinical expertise. This demonstrates the necessity of providing instructions that give students in-depth knowledge and abilities for TMJ issues in clinical practice.
Bhushan, Shashi,Gogoi, Mandakini,Bora, Abhispa,Ghosh, Sourav,Barman, Sinchini,Biswas, Tethi,Sudarshan, Mathummal,Thakur, Ashoke Ranjan,Mukherjee, Indranil,Dey, Subrata Kumar,Chaudhuri, Shaon Ray The Korean Society for Microbiology and Biotechnol 2019 한국미생물·생명공학회지 Vol.47 No.2
Earlier studies by our group revealed that gallic acid in phytochemicals stimulated biofilm production in epiphytes, while caffeic acid in phytochemicals inhibited biofilm production in non-epiphytes. It is well documented that antimicrobial secretion by some epiphytic bacteria inhibits non-epiphytic bacterial growth on leaf surfaces. These selection criteria help plants choose their microbial inhabitants. Calcium and iron in phytochemicals also stimulate biofilm formation and thus, may be selection criteria adopted by plants with respect to their native epiphytic population. Furthermore, the processing of leaves during phytochemical extraction impacts the composition of the extract, and therefore its ability to affect bacterial biofilm formation. Computation of the Hurst exponent using biofilm thickness data obtained from the Ellipsometry of Brewster Angle Microscopic (BAM) images is an efficient tool for understanding the impact of phytochemicals on epiphytic and non-epiphytic populations when compared to fluorescent microscopy, scanning electron microscopy, and staining techniques. To the best of our knowledge, this is the first report that uses the Hurst exponent to elucidate the mechanism involved in plant microbe interaction.
Bhushan Shrestha,Jae-Gu Han,Junsang Oh,Jae-Gwang Park,Jiyoung Kim,Kang-Hyo Lee,Sung Yuel Hong,Gi-Ho Sung 한국버섯학회 2014 버섯 Vol.18 No.2
Cordyceps species (Cordycipitaceae, Hypocreales) were previously mentioned under dominant genera such as basidiomycetous Clavaria Vaill. ex L. and ascomycetous Sphaeria Haller. Cordyceps Fr. was coined by Fries (1818) from a combination of a Greek word cordyle, meaning a club, and a Latin word caput, meaning a head. Cordyceps was, however, ranked at tribal level under Sphaeria by Fries (1823). Link (1833) later re-elevated Cordyceps to genus level. As a result, there was variation on author citation of Cordyceps in different botanical codes such as Cordyceps (E. M. Fries) Link (1833), Cordyceps E. M. Fries (1818) and Cordyceps Fr. (1824). In 19th and 20th centuries, more and more species were described, with necessity to divide Cordyceps into subgenera, sections and subsections based on morphological similarities. Recent molecular phylogenetic studies, however, showed that Cordyceps is polyphyletic and its members are dispersed in various clades within Hypocreales. As a consequence, Cordyceps was amended in strict sense by Sung et al. (2007) and distantly related clades were named under separate genera. Here, we review recent nomenclatural changes of Cordyceps-related fungi in light of recent changes in the International Code of Nomenclature for algae, fungi, and plants (ICN).
On efficient estimation of population mean under non-response
Bhushan, Shashi,Pandey, Abhay Pratap The Korean Statistical Society 2019 Communications for statistical applications and me Vol.26 No.1
The present paper utilizes auxiliary information to neutralize the effect of non-response for estimating the population mean. Improved ratio type estimators for population mean have been proposed and their properties are studied. These estimators are suggested for both single phase sampling and two phase sampling in presence of non-response. Empirical studies are conducted to validate the theoretical results and demonstrate the performance of the proposed estimators. The proposed estimators are shown to perform better than those used by Cochran (Sampling Techniques (3rd ed), John Wiley & Sons, 1977), Khare and Srivastava (In Proceedings-National Academy Science, India, Section A, 65, 195-203, 1995), Rao (Randomization Approach in Incomplete Data in Sample Surveys, Academic Press, 1983; Survey Methodology 12, 217-230, 1986), and Singh and Kumar (Australian & New Zealand Journal of Statistics, 50, 395-408, 2008; Statistical Papers, 51, 559-582, 2010) under the derived optimality condition. Suitable recommendations are put forward for survey practitioners.
Transient Flow of Gas-steam Mixture in a Canister
Bhushan A. Bhosale,Seong Hun Bae,Hyuk Soo Jeon,Chul Hyun Park,Jeong Soo Kim 한국추진공학회 2016 한국추진공학회 학술대회논문집 Vol.2016 No.5
The main purpose of this research work is to analyze the complicated three-dimensional flow structure created by the hot jet impingement on the canister walls. The three-dimensional flow features inside the canister caused by compressible flow were examined and numerically simulated by solving two-equation SST turbulence model with the combination of discrete phase model. In this simulation the working fluid consists a mixture of water vapour and air. The accumulation of this mixture inside a canister develops into the pressurization which may cause missile to lift and force it out from the canister. The entrance of this mixture inclines to the canister at an angle of 45° to prevent the direct jet-impinging on the sidewalls. The computational results with the turbulence models mentioned fairly well predict the pressure, velocity and temperature distribution in the canister.
Bhushan Kumar Sharma 국립중앙과학관 2017 Journal of Asia-Pacific Biodiversity Vol.10 No.2
Plankton samples collected from freshwater lentic ecosystems of south Andaman, India, revealed 70 species of Rotifera belonging to 25 genera and 16 families. The reports of Australasian Lecane batillifer, Oriental endemic Lecane bulla diabolica and three Paleotropical species, and 68 new records of Eurotatoria from Andaman and Nicobar Islands contribute to biodiversity and biogeography of the Indian Rotifera. The rotifers are characterized by diverse Lecanidae > Lepadellidae > Brachionidae and common nature of species of “tropic-centered” Lecane and Brachionus. The occurrences of a large number of cosmopolitan species, and several tropicopolitan and pantropical species are notable. This report indicates a further scope for biodiversity update on these metazoans from the insular freshwater of Andaman and Nicobar Islands located in the Andaman Sea.
Instability in in vitro fruiting of Cordyceps militaris
Bhushan Shrestha,Young-Jin Park,Sang-Kuk Han,Sung-Keun Choi,Jae-Mo Sung 한국버섯학회 2004 한국버섯학회지 Vol.2 No.3
Traditionally, Cordyceps species have been used as a part of herbal medicine in Oriental countries, including Korea for internal health, vigor and to cure different diseases related to heart, lung etc. In recent years, research on artificial fruiting of some species of the genus Cordyceps including C. militaris has been carried out extensively because of their medicinal value. Instability observed in the in vitro fruiting of C. militaris is reported in the present study.
Bhushan Yelure,Arun Patokar,Siddheshwar Patil,Rajesh Mawale,Sangita Nemade,Varsha Gaikwad 대한전자공학회 2024 IEIE Transactions on Smart Processing & Computing Vol.13 No.3
Vehicular Ad-hoc networks have gained substantial interest from researchers in recent times. They offer the potential to deploy different applications utilized by intelligent transportation systems, which could improve traffic control and ensure road safety. The vehicle has a significant position within a Vehicular Ad hoc network system. Ensuring security is crucial due to the open wireless environment where data are disseminated. This research paper discusses different types of routing attacks that pertain to data availability and authentication. To assess the impact of these attacks on the routing protocol, a simulation was conducted using the Ad hoc on demand distance vector (AODV) routing protocol with the implementation of these attacks. To perform simulations, trace files for both one-lane and two-lane scenarios were employed. The outcomes of the simulations highlight the influence of an attack on the routing protocol performance, which was compared to the performance of the AODV protocol. In the absence of an attack, the AODV protocol demonstrates an improved collision ratio and packet delivery. In comparison to a Sybil attack, other forms of attacks, such as black-hole, gray-hole, and rushing attacks, have a greater influence on the performance of AODV.