390 research outputs found
Effect of altitude on volatile organic and phenolic compounds of Artemisia brevifolia Wall ex Dc. from the Western Himalayas
The effects of display variables and secondary loading on the dual axis critical task performance
The effects of scanning displays for separated instruments, separated versus combined displays, and the effects of secondary loading are investigated. An operator rating scale for handling qualities is established analogous to the Cooper Harper Scale
Intrinsic Electric Dipole Moments of Paramagnetic Atoms: Rubidium and Cesium
The electric dipole moment (EDM) of paramagnetic atoms is sensitive to the
intrinsic EDM contribution from that of its constituent electrons and a
scalar--pseudo-scalar (S-PS) electron-nucleus interactions. The electron EDM
and the S-PS EDM contribution to atomic EDM scales as Z^3. Thus, the heavy
paramagnetic atomic systems will exhibit large enhancement factors. However,
the nature of the coupling is so small that it becomes an interest of high
precision atomic experiments. In this work, we have computed the EDM
enhancement factors of the ground states of Rb and Cs due to both the electron
EDM and the S-PS EDM using the relativistic coupled-cluster (RCC) theory. The
importance of obtaining the precise enhancement factors and the experimental
results in deducing a reliable limit on the electron EDM is emphasized.Comment: 4 pages, 1 figur
Evaluation of Annual Statice (Limonium sinuatum L.) Cultivars
A field study was conducted during rabi season of 2003-2004 to evaluate the potential of statice cultivars as cut flower crop in the field of Department of Floriculture and Landscape Gardening, K.R.C. College of Horticulture, Arabhavi. The experiment was laid out as a Randomised Block Design with four replications. The panicles of each variety were harvested when calycys of individual flower have mostly opened and showing colour. The cultivar Turbo White recorded maximum plant height (21.78 cm), panicle length (80.94 cm), stem diameter (0.61 cm), no. of leaves (186.60), maximum fresh weight of panicles (530.09 g/plant), plant spread 62.15 cm2 and remained superior over others. The results are in agreement with the findings of Angadi (2000) in China aster. Maximum panicle production per plant (25.64) was recorded in cv. Turbo White, which was on par with the cultivar Turbo Carmine (22.54). The results were in line with the findings of Kumar et al. (1998) in annual statice Turbo White. The cultivar Turbo White was good in quality parameters by recording maximum panicle length, girth and number of branches per panicle. It was also vigorous in vegetative growth. Therefore, the cultivar could produce better quality panicles and found to be suitable for semi arid regions
Achieving Privacy Assured Outsourcing of Data in Cloud Using Optimalvisual Cryptography
Abstract-Security has emerged as the most feared aspect of cloud computing and a major hindrance for the customers. In existing system for establishing secure and privacy-assured service outsourcing in cloud computing which uses Linear programming and compressed sensing techniques to transform images, which aims to take security, complexity, and efficiency into consideration from the very beginning of the service flow. But it makes more complexity because the data is sent in its raw form to one cloud. The cryptography schemes are computationally more complex. In order to enhance the security and reduce the complexity, to use data obfuscation through a novel visual cryptography. A conventional threshold (k out of n) visual secret sharing scheme encodes one secret image into transparencies (called shares) such that any group of transparencies reveals when they are superimposed, while that of less than ones cannot. In the proposed work, novel multiple secret visual cryptographic schemes are used to encode the secret s images into n shares. Convert the data into basic images and send the encrypted form of image by using multiple visual cryptographic schemes. (k, n, s) -MVCS, in which the superimposition of each group of shares reveals the first, second, s th secret, respectively where s=n-k+1. The proposed system also considers visual cryptography without pixel expansion. A new scheme for visual cryptography is developed and configured for the cloud for storing and retrieving textual data. Testing the system with query execution on a cloud database indicates full accuracy in record retrievals with negligible false positives. In addition, the system is resilient to attacks from within and outside the cloud. An experimental result shows that the Complexity analysis, Security analysis, the system is tested against artificial intelligence/machine learning based attacks
Theoretical determination of lifetimes of metastable states in Sc III and Y III
Lifetimes of the first two metastable states in Sc^{2+} and Y^{2+} are
determined using the relativistic coupled-cluster theory. There is a
considerable interest in studying the electron correlation effects in these
ions as though their electronic configurations are similar to the neutral
alkali atoms, their structures are very different from the latter. We have made
a comparative study of the correlation trends between the above doubly ionized
systems with their corresponding neutral and singly ionized iso-electronic
systems. The lifetimes of the excited states of these ions are very important
in the field of astrophysics, especially for the study of post-main sequence
evolution of the cool giant stars.Comment: 13 pages, 1 figure and 5 table
The electron electric dipole moment enhancement factors of Rubidium and Caesium atoms
The enhancement factors of the electric dipole moment (EDM) of the ground
states of two paramagnetic atoms; rubidium (Rb) and caesium (Cs) which are
sensitive to the electron EDM are computed using the relativistic
coupled-cluster theory and our results are compared with the available
calculations and measurements. The possibility of improving the limit for the
electron EDM using the results of our present work is pointed out.Comment: AISAMP7 Conference paper, Accepted in Journal of Physics: Conference
Series: 200
Biochemical & Hematological parameters to predict severity and mortality in COVID 19 patients – a retrospective study
Introduction: Coronavirus diseases (COVID-19), the global pandemic has posed a serious threat to the health of individuals across the world and is associated with increased morbidity and mortality. Several biochemical and hematological parameters are found to be altered in these patients and there is a need to identify a suitable biomarker that can help in better risk stratification of these patients. Hence in this study, we intend to evaluate the clinical utility of these parameters to predict severity and mortality in COVID-19 patients.
Material & Methods: A retrospective, observational study was conducted in a tertiary care hospital involving Reverse Transcription Polymerase Chain Reaction (RT-PCR) positive COVID-19 patients (n-322). Data about patient\u27s age, gender, co-morbidities, duration of hospital and intensive care unit (ICU) stay, need for mechanical ventilation and laboratory investigations were obtained from the Hospital Information System (HIS).
Results: The average duration of hospital stay was 10 days, and the ICU stay of these patients was 6.5 days.[M1] [DSS2] There was a statistically significant increase in C-reactive protein (CRP), ferritin, lactate dehydrogenase (LDH), aspartate aminotransferase (AST), neutrophils, and neutrophil/lymphocyte ratio (NLR), and lower mean lymphocytic count (p=0.05), in patients who required ICU admission when compared to those who didn’t and[M3] [DSS4] also among non-survivors compared to survivors.
Conclusion: Among the various biochemical & hematological markers, CRP, ferritin, LDH AST, and NLR were found to be better predictors of severity and mortality in COVID 19 patients. Timely monitoring of these markers would therefore help in better management and improved outcome for these patients
Exploring Biorthonormal Transformations of Pair-Correlation Functions in Atomic Structure Variational Calculations
Multiconfiguration expansions frequently target valence correlation and
correlation between valence electrons and the outermost core electrons.
Correlation within the core is often neglected. A large orbital basis is needed
to saturate both the valence and core-valence correlation effects. This in turn
leads to huge numbers of CSFs, many of which are unimportant. To avoid the
problems inherent to the use of a single common orthonormal orbital basis for
all correlation effects in the MCHF method, we propose to optimize independent
MCHF pair-correlation functions (PCFs), bringing their own orthonormal
one-electron basis. Each PCF is generated by allowing single- and double-
excitations from a multireference (MR) function. This computational scheme has
the advantage of using targeted and optimally localized orbital sets for each
PCF. These pair-correlation functions are coupled together and with each
component of the MR space through a low dimension generalized eigenvalue
problem. Nonorthogonal orbital sets being involved, the interaction and overlap
matrices are built using biorthonormal transformation of the coupled basis sets
followed by a counter-transformation of the PCF expansions.
Applied to the ground state of beryllium, the new method gives total energies
that are lower than the ones from traditional CAS-MCHF calculations using large
orbital active sets. It is fair to say that we now have the possibility to
account for, in a balanced way, correlation deep down in the atomic core in
variational calculations
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