1,993 research outputs found
Soil quality assessment across different stands in tropical moist deciduous forests of Nagaland, India
No full textTo analyze the relationship between the management of three forest stand plantations and soil quality in the Dimapur district of the Northeastern Himalayan region, India, three forest soil profiles, covered by different species stands, at three depths were tested for 13 physical and chemical variables. Only four of these variables (electric conductivity, bulk density exchangeable Mg and available P) were included in a minimum data set, after using a varimax rotation algorithm in a principal component analysis, and subsequently used to calculate a soil quality index (SQI). Results showed higher SQIs in the surface layers (0-20cm depth) than in the deeper ones. Average weighed SQI varied significantly (P<0.05) through the three considered forest sites, with the lowest value at site FS3. These findings reveal that the approach used here is suitable for preliminary screening of the impact of a forestry species on soil, to aid in species selection and improve soil health for afforestation and reforestation projects
Figure 6 in Fossils of the oldest diplodocoid dinosaur suggest India was a major centre for neosauropod radiation
No full textFigure 6. Phylogenetic position of Tharosaurus indicus gen. et sp. nov. (RWR-241) in 50% majority-rule tree. Clade Dicraeosauridae shaded in pink. Numbers above nodes indicate Bremer support values.Published as part of Bajpai, Sunil, Datta, Debajit, Pandey, Pragya, Ghosh, Triparna, Kumar, Krishna & Bhattacharya, Debasish, 2023, Fossils of the oldest diplodocoid dinosaur suggest India was a major centre for neosauropod radiation, pp. 1-15 in Scientific Reports 13 (1) on page 9, DOI: 10.1038/s41598-023-39759-2, http://zenodo.org/record/826834
Figure 7 in Fossils of the oldest diplodocoid dinosaur suggest India was a major centre for neosauropod radiation
No full textFigure 7. Time-calibrated phylogenetic tree, based on the 50% majority-rule tree of Supplementary Fig. 6. Macronarians have been combined into a single lineage to enhance clarity. Red star indicates position of Tharosaurus indicus.Published as part of Bajpai, Sunil, Datta, Debajit, Pandey, Pragya, Ghosh, Triparna, Kumar, Krishna & Bhattacharya, Debasish, 2023, Fossils of the oldest diplodocoid dinosaur suggest India was a major centre for neosauropod radiation, pp. 1-15 in Scientific Reports 13 (1) on page 11, DOI: 10.1038/s41598-023-39759-2, http://zenodo.org/record/826834
Detecting moments of distraction during meditation practice based on changes in the EEG signal
No full textElectroencephalography (EEG) enables online monitoring brain activity, which can be used for neurofeedback. One of the growing applications of EEG neurofeedback is to facilitate meditation practice. Specifically, EEG neurofeedback can be used to alert participants whenever they get distracted during meditation practice based on changes in their brain activity. In this study, we develop machine learning models to detect moments of distraction (due to mind wandering or drowsiness) during meditation practice using EEG signals. We use EEG data of 24 participants while performing a breath focus meditation with experience sampling and extract twelve linear and non-linear EEG features. Features are fed to ten supervised machine learning models to classify (i) Breath Focus Awake (BFA) vs Breath Focus Sleepy (BFS), and (ii) BFA vs Mind Wandering (MW). We observe that the linear features achieve a maximum accuracy of 86% for classifying awake (BFA) and sleepy (BFS), whereas non-linear features have more predictive ability for classifying between BFA and MW with a maximum accuracy of nearly 78% . In addition, visualization of unsupervised t-SNE lower embeddings supports the evidence of distinct clusters for each condition. Overall our results show that machine learning algorithms can successfully identify periods of distraction during meditation practice in novice meditators based on linear and non-linear features of the EEG signal. Consequently, our results have important implications for the development of mobile EEG neurofeedback protocols aimed at facilitating meditation practice. </p
Application of the faulted matrix model to the growth of polytype structures in mica
No full textFollowing Baronnet's theoretical deduction of the possible polytype structures in mica that can result from spiral growth round single screw dislocations of different Burgers vectors created in a perfect matrix, this paper reports a systematic deduction of mica polytypes on the basis of the faulted matrix model, proposed earlier by Pandey and Krishna to explain the growth of polytype structures observed in SiC, CdI2 and PbI2. All possible intrinsic and extrinsic fault configurations are worked out that can occur in the basic structures of mica, namely 1M [0], 2M1 [2 ] and 3T [222]. The most probable fault configurations for each basic structure are predicted by estimating the relative stacking fault energies (SFE) of all possible fault configurations. Polytype structures that can result by spiral growth round screw dislocations of different Burgers vectors originating in faulted basic structures of mica are deduced by considering the most probable fault configuration to lie at different distances from the surface at the time of the origin of the screw dislocation step. Of the various structures resulting from screw dislocations of the same Burgers vector, the structure having the lowest SFE would be more probable. The most probable series of structures so predicted are found to be in excellent agreement with those observed
On the calculation of diffracted intensities from SiC crystals undergoing 2H to 6H transformation by the layer displacement mechanism
No full textComputer simulation of 2H to 6H transformation by non-random insertion of layer displacement faults in a random space and time sequence has been performed. The model employed by Pandey, Lele & Krishna [Proc. R. Soc. London Ser. A, (1980), 369, 435-477], which is based on the sequential insertion of layer displacement faults, allows faulting of one-third of the total number of layers on completion of the transformation. The results of the simulation show that the transformation gets arrested because of the formation of interfaces by the impingement of independently formed 6H regions and that the fraction of faulted layers which can be inserted is just 0.276. It is shown that these interfaces are such that they do not lead to any broadening of the 6H reflections common with 2H. While this is in agreement with the theoretical predictions of Pandey et al., the diffuse intensity distribution calculated for the arrested state shows significant departures
Directive speech acts in the New Testament
No full textDanuta Pytel-Pandey, WrocławThis article discusses the directive speech acts in the New Testament. The
author presents examples of such acts from the New Testament Scriptures, and
then carries out their pragmalinguistic [email protected]
Figure 5 in Fossils of the oldest diplodocoid dinosaur suggest India was a major centre for neosauropod radiation
No full textFigure 5. Caudal vertebrae of Tharosaurus indicus. RWR-241-J, partial anterior caudal vertebra in (a) anterior view; (b) right lateral view; (c) ventral view. RWR-241-K, middle caudal centrum in (d) anterior view; (e) posterior view; (f) lef lateral view; (g) ventral view. c centrum, chf chevron facet, lf lateral fossa, lpfo lateral pneumatic foramen, vf ventral fossa, vr ventrolateral ridge.Published as part of Bajpai, Sunil, Datta, Debajit, Pandey, Pragya, Ghosh, Triparna, Kumar, Krishna & Bhattacharya, Debasish, 2023, Fossils of the oldest diplodocoid dinosaur suggest India was a major centre for neosauropod radiation, pp. 1-15 in Scientific Reports 13 (1) on page 6, DOI: 10.1038/s41598-023-39759-2, http://zenodo.org/record/826834
Impact of trade liberalisation in manufacturing industry in India in the 1980s and 1990s
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