45 research outputs found
Tri-level Unified Framework for Human Gait Analysis
There are several applications that can be related to multimedia content analysis. Considering video as one of the prominent forms of multimedia content, this paper presents analysis of human walking motion (gait) found in video sequences by using promising strategy of integrating techniques from data fusion and computer vision. To provide solutions to the challenges in human gait analysis a unified framework is proposed comprising of three different levels: data level, feature descriptor level and decision level. The three levels perform specific tasks assigned to them. At the data level, features are extracted from input video sequences for minimal representation. At the feature descriptor level, features from minimal representation are rearranged to build a feature descriptor and finally at decision level meaningful interpretations are performed. For analysing human walking motion found in video sequences, initially, moving silhouettes are extracted using background subtraction for minimal representation at the data level. The extracted silhouettes are then represented in a common representation in a spatial form followed by correlation analysis and a feature descriptor is developed with minimum interest points at the feature descriptor level. Finally, interpretation of normal gait poses and transition poses are made at the decision level.Keywords:Multimedia content; Data Fusion; Unified Framework; Background Subtraction;Correlation; Feature Descriptor; interpretation of Gaits
Erythema annulare centrifugum: a case report
Erythema annulare centrifugum (EAC) is a rare cutaneous disease characterized by polycyclic lesion simulating urticarial papules that enlarge centrifugally with central clearing and trailing scales. . It is classified as a reactive erythema and has been associated with various underlying conditions, including malignancies. Diagnosis is established on history, clinical features, and supporting examination. No treatment seems to be effective for this disease and there is still a lack of consensus regarding the best approach. Current choices are focused on treating the underlying subjective complaints. We reported a case of erythema annulare centrifugum in a 49 year old female patient
In silico characterisation of novel rice transcripts differentially expressed in phosphorus dificient conditions suggests a role of these transcripts in multiple abiotic stresses
Phosphorus deficiency adversely affects crop productivity. The mechanism of tolerance in plants is not well understood. The current study successfully annotated a set of highly significant (Log2 RPKM ≥3) nine novel sequences up-regulated in P deficient condition identified from a low P tolerant rice genotype. Sequence annotation identified two transcripts (Os01g37260 and Os02g11060) carrying known domains, F-box and WD, respectively. Multiple Expectation maximization for Motif Elicitation (MEME) revealed presence of conserved domains like D[LP][HY][CL]D[CM][DT]C[AP][DQ][IQ]C, [EH][DN]HN[HS] [ER][FY][EP]I[HN]H which might play a role in phosphorus deficiency tolerance. Analysis of the upstream regions indicated presence of stress responsive elements like E Box, ABRE, and MYBCORE suggesting regulation of the novel transcripts by DNA binding. Protein localization prediction tool suggests that these novel proteins might be targeted to nucleus, chloroplast and cell wall. Transcripts Os02g03640 and Os02g10250 revealed potential target sites for microRNA binding suggesting role of novel miRNAs in low phosphorus response. Our analysis suggests that an F-box protein, Os01g37260 (OSFBx14) might be a promising candidate gene playing a role in multiple abiotic stresses including P deficiency
Improving the Optical and Thermoelectric Properties of Cs2InAgCl6 with Substitutional Doping: A DFT Insight
New generation Indium based lead-free Cs2InAgCl6 is a promising halide
material in photovoltaic applications due to its good air stability and
non-toxic behavior. But its wide band gap (>3 eV) is not suitable for solar
spectrum and hence reducing the photoelectronic efficiency for device
applications. Here we report a significant band gap reduction from 3.3 eV to
0.6 eV by substitutional doping and its effect on opto-electronic and
opto-thermoelectric properties from first-principles study. The results predict
that Sn/Pb and Ga & Cu co-doping enhance the density of states significantly
near the valence band maximum (VBM) and thus reduce the band gap by shifting
the VBM upward while the alkali-metals (K/Rb) slightly increase the band gap. A
strong absorption peak near Shockley-Queisser limit is observed in co-doped
case while in Sn/Pb-doped case, we notice a peak in the middle of the visible
region of solar spectrum. The nature of band gap is indirect with Cu-Ga/Pb/Sn
doping with a significant reduction in the band gap. We observe a significant
increase in the power factor (PF) (2.03 mW/mK2) for n-type carrier in
Pb-dpoing, which is ~3.5 times higher than the pristine case (0.6 mW/mK2) at
500 K
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Synthesizing habitat connectivity analyses of a globally important human-dominated tiger-conservation landscape
As ecological data and associated analyses become more widely available, synthesizing results for effective communication with stakeholders is essential. In the case of wildlife corridors, managers in human-dominated landscapes need to identify both the locations of corridors and multiple stakeholders for effective oversight. We synthesized five independent studies of tiger (Panthera tigris) connectivity in central India, a global priority landscape for tiger conservation, to quantify agreement on landscape permeability for tiger movement and potential movement pathways. We used the latter analysis to identify connectivity areas on which studies agreed and stakeholders associated with these areas to determine relevant participants in corridor management. Three or more of the five studies’ resistance layers agreed in 63% of the study area. Areas in which all studies agree on resistance were of primarily low (66%, e.g., forest) and high (24%, e.g., urban) resistance. Agreement was lower in intermediate resistance areas (e.g., agriculture). Despite these differences, the studies largely agreed on areas with high levels of potential movement: >40% of high average (top 20%) current-flow pixels were also in the top 20% of current-flow agreement pixels (measured by low variation), indicating consensus connectivity areas (CCAs) as conservation priorities. Roughly 70% of the CCAs fell within village administrative boundaries, and 100% overlapped forest department management boundaries, suggesting that people live and use forests within these priority areas. Over 16% of total CCAs’ area was within 1 km of linear infrastructure (437 road, 170 railway, 179 transmission line, and 339 canal crossings; 105 mines within 1 km of CCAs). In 2019, 78% of forest land diversions for infrastructure and mining in Madhya Pradesh (which comprises most of the study region) took place in districts with CCAs. Acute competition for land in this landscape with globally important wildlife corridors calls for an effective comanagement strategy involving local communities, forest departments, and infrastructure planners
Effect of Indigenous Plant Extracts on the Incidence of <em>Scirpophaga incertulas</em> (Walker) (Lepidoptera: Pyralidae) in <em>Kharif </em>Rice Ecosystem
494-500The field evaluation was carried out to determine the efficacy of the plant extracts of eight plant species viz; Vitex trifolia (L.), Melia azedarach (L.), Acorus calamus (L.), Ageratum conyzoides (L.), Artemisia nilagirica (C. B. Clarke), Jatropha gossypifolia (L.), Kegelia pinnata (Dc.) and Lantana camara (L.) with cow-urine and commercial biopesticide Multineem against Sirpophaga incertulas on KD 2-6-3 variety of rice during Kharif season (2012-2013) in Manipur. Cow-urine + J. gossypifolia and Cow-urine + A. nilagirica extracts @7500ml/ha were recorded the least DH (0.97%) and WEH (0.87%) infestations, respectively. However, the highest DH (2.15%) and WEH (2.16%) were recorded from the plot treated with Cow-urine + K. pinnata extract@7500ml/ha over the control plots (4.94% of DH and 3.20% of WEH). The maximum grain yield (6.58 t/ha) was harvested from the plot treated with Cow-urine + A. nilagirica extract with highest cost benefit ratio (1:35.69). However, Multineem (Azadirachtin 300ppm) showed as lowest benefit (1:7.32) because of its less effectiveness and extra cost of insecticide. The bioactivity of A. nilagirica, J. gossypifolia and M. azedarach@7500ml/ha with cow-urine gave more benefit than the commercial plant product against S. incertulas and may be recommended at the agro-climatic conditions of Manipur
Sufficient optimality conditions and duality for nonsmooth multiobjective optimization problems via higher order strong convexity
In this paper, we define some new generalizations of strongly convex
functions of order m for locally Lipschitz functions using Clarke
subdifferential. Suitable examples illustrating the non emptiness of the
newly defined classes of functions and their relationships with classical
notions of pseudoconvexity and quasiconvexity are provided. These
generalizations are then employed to establish sufficient optimality
conditions for a nonsmooth multiobjective optimization problem involving
support functions of compact convex sets. Furthermore, we formulate a mixed
type dual model for the primal problem and establish weak and strong duality
theorems using the notion of strict efficiency of order m. The results
presented in this paper extend and unify several known results from the
literature to a more general class of functions as well as optimization
problems
Not Available
Not AvailablePotato digging with improved diggers having high effective field capacities and higher digging efficiency was carried out, ensuring total losses within permissible limit.
Light weight, single row animal drawn improved digger was developed and evaluated in terraces for harvesting tubers. The performance of the digger was also compared with
power tiller mounted digger and traditional digging methods prevailing in the region. Light weight animal drawn potato digger was tested at average speed of 1.72 km/h at 120 mm
depth of operation. Digging efficiency and field efficiency were 93% and 88% respectively. Effective field capacity and cost of operation were 0.030 ha/h and Rs 1250/ha. Labour
requirement was 34 man-h/ha excluding 150 h for picking of potato after harvest which showed a saving of 38.25% in labour and 60.93% in cost of digging (including picking of
potato) over traditional digging by kudal /spade in terraces. Physical damage to dug out tuber was about 1% as compared to 4.6% in power tiller mounted digger and 0.8% in
manual digging. Effective field capacity of power tiller mounted potato digger of 300 mm size was 0.055 ha/h and its field efficiency and digging efficiency were 82% and 89.8%
respectively. The cost of operation with improved digger was Rs 1250/ha as compared to Rs 3200/ha by manual method and Rs 1875/ha using power tiller mounted digger.Not Availabl