2,620 research outputs found
Anaphora resolution for bengali: An experiment with domain adaptation
In this paper we present our first attempt on anaphora resolution for a resource poor language, namely Bengali. We address the issue of adapting a state-of-the-art system, BART, which was originally developed for English. Overall performance of co-reference resolution greatly depends on the high accurate mention detectors. We develop a number of models based on the heuristics used as well as on the particular machine learning employed. Thereafter we perform a series of experiments for adapting BART for Bengali. Our evaluation shows, a language-dependant system (designed primarily for English) can achieve a good performance level when re-trained and tested on a new language with proper subsets of features. The system produces the recall, precision and F-measure values of 56.00%, 46.50% and 50.80%, respectively. The contribution of this work is two-fold, viz. (i). attempt to build a machine learning based anaphora resolution system for a resource-poor Indian language; and (ii). domain adaptation of a state-of-the-art English co-reference resolution system for Bengali, which has completely different orthography and characteristics
An efficient callus initiation and direct regeneration of Stevia rebaudiana
The experiment was carried out to establish an efficient callus induction system of Stevia rebaudiana from a variety of explants as well as direct regeneration from nodes. Callus initiation was done to extract secondary metabolites. However direct regeneration is essential for rapid large-scale clonal propagation. Among leaf, node and inter-nodal explants, the best callus initiation performance was observed by nodes. MS medium fortified with α-naphthalene acetic acid (NAA) 2.0 mg/L + 6-benzyladenine (BA) 2.0 mg/L showed the highest (93.33 ± 6.67%) callus induction by nodal explants. Though inter-nodal explants showed a moderate response (73.33 ± 6.67%) for callus induction in MS medium complemented with NAA 3.0 mg/L + BA 1.0 mg/L, nodal explants showed higher response (86.67 ± 13.33%) than inter-nodal explants in that nutritional environment. Leaf explants always showed very poor callus. However, the best direct regenerating medium was MS medium + BA 1.0 mg/L for multiple shoot proliferation and then transferring those shoots to ½ MS medium + NAA 1.0 mg/L for root formation.Key words: In vitro, Stevia rebaudiana, 2,4-D, α-naphthalene acetic acid (NAA), 6-benzyladenine (BA), plant growth regulators
Study of Shoot Multiplication of Strawberry (Fragaria ananassa)
Effects of different hormonal concentration on multiple shoot formation of RABI Strawberry-3 were studied. Where the explants were runner tips that cultured on MS basal medium supplemented with 6-Benzyl Adenine and Kinetin. The maximum percentage 80% of shoot was obtained from Benzyl Adenine concentrations of 0.5 mg/l and 1.0 mg/l whereas Kinetin concentrations were 1.5 mg/l and 2.0 mg/l separately. More promising result was found by combining two impressive concentrations of each hormone. When MS basal media was supplemented with Kinetin 2.0mg/l + Benzyl Adenin A 0.5 mg/l, Kinetin 1.5 mg/l + Benzyl Adenine 0.5 mg/l and Kinetin 1.5 mg/l + Benzyl Adenine 1.0 mg/l respectively then 100% shoots were obtained. DOI: http://dx.doi.org/10.3329/ijarit.v1i1-2.13936 Int. J. Agril. Res. Innov. & Tech. 1 (1&2): 69-72, December, 201
An Efficient Irrigation System for Plasticulture of Strawberry in Bangladesh
Plasticulture technique is a commonly used technique for advanced strawberry production. Due to high cost and tough maintenance, this technique is not practiced commercially in Bangladesh. We have found that, if the irrigation system can be switched to a cheaper one with high efficiency, then the cost can be minimized. We applied Micro-drip mediated irrigation system to minimize the cost. Our proposed modification of plasticulture using micro-drip irrigation system was outstanding in all our concerned horticultural parameters like height of the plants, number of leaves, north-south spreading, and east-west spreading of the plants. Paired Samples analysis between conventional and plasticulture procedure, test of significance for the pairs of mean, analysis of variance and LSD test at 5% level of significance were done for statistical analysis to conclude the result. The statistical analysis has also shown that the plasticulture method proposed by us was highly significant over the conventional technique and practical for the rural farmer of Bangladesh. It reduces the production costs, improves fruit quality and yield, and reduces the need for chemical pesticides. Keywords: Micro drip irrigation, Soil solarization, Mulching, and Fruit Qualit
Population Variations of Cheiloscopy Patterns: A Cross-Sectional Observation Pilot Study
Purpose Lip prints are unique and have potential for use as a human identifier. The purpose of this study was to observe possible cheiloscopy differences of individuals with and without parafunctional oral habits such as smoking, vaping, playing a wind instrument or using an asthma inhaler. Methods This IRB approved blinded cross-sectional observation pilot study collected lip prints from sixty-six individuals, three of which were excluded. Participants cleansed their lips, then lipstick was applied to the vermillion zones of the upper and lower lips. Adhesive tape was applied to the lips and prints were transferred to white bond paper for viewing purposes. Each set of included lip prints was divided into quadrants and dichotomized into a group of those with an oral parafunctional habit or with no such habits. Each quadrant sample was then manually analyzed and classed according to the gold standard Suzuki and Tsuchihashi system. Results A total of 252 dichotomized lip print quadrants (with habits n=76, 30.2%, and without habits n=176, 69.8%) were analyzed. Type II patterns were the most common for examined quadrant samples; however, no statistically significant differences (Pearson’s chi-squared test, p=0.366) were observed between pattern classifications of samples with and without parafunctional oral habits. Conclusion There is no statistically significant difference of lip print patterns between individuals with and without parafunctional oral habits. Further research on populational variations is needed for cheiloscopy to aid in human identifications
Silica-Based Membrane Sorbent for Heavy Metal Sequestration
An apparatus providing for metal ion/nitrate entrapment comprises a chemically activated, microfiltration, composite polymer and silica-based membrane including a polyamino acid attached thereto through reaction of a terminal amine group of the polyamino acid with the membrane. A method for preparing such a chemically activated or polyamino acid functionalized membrane includes the steps of permeating the silica-based membrane with a solution of silane and a solvent so as to react methoxy groups of the silane with silanol groups of the membrane to incorporate epoxide groups and attaching a polyamino acid to the membrane by reacting a terminal amine group of the polyamino acid with one of the epoxide groups on the membrane
Method of Preparing a Composite Polymer and Silica-Based Membrane
A method for preparing a chemically activated or polyamino acid functionalized membrane includes the steps of permeating a silica-based membrane with a solution of silane and a solvent so as to react methoxy groups of the silane with silanol groups of the membrane to incorporate epoxide groups and attaching a polyamino acid to the membrane by reacting a terminal amine group of the polyamino acid with one of the epoxide groups on the membrane
Development of Efficient Callus Initiation of Malta (Citrus sinensis) Through Tissue Culture
The effects of different hormonal concentration on shoot formation and callus induction were studied on BARI Malta-1 (Citrus sinensis). Seeds containing seed coat and without seed coat was treated by Murashige and Skoog (MS) media supplemented with 6-benzyl adenine (BA) and Kinetin (KIN). Removal of seed coat showed an early response for shoot formation. The highest (70%) shoot formation was obtained from seeds without seed coat treated with MS basal media + BA 1.0 mg/l while KIN showed no response for shoot formation in any supplemented concentration. However, in case of callus induction internodes and apical shoot tips were used as explants and 2, 4-dichlorophenoxy acetic acid (2, 4-D) was used as callus inducing hormone. MS basal media supplemented with 2, 4-D, 2.0 mg/l showed highest (68%) callus induction. DOI: http://dx.doi.org/10.3329/ijarit.v1i1-2.13935 Int. J. Agril. Res. Innov. & Tech. 1 (1&2): 64-68, December, 201
Preparing and Regenerating a Composite Polymer and Silica-Based Membrane
A method for preparing and regenerating a chemically activated or polyamino acid functionalized membrane includes the steps of permeating the silica-based membrane with a solution of silane and a solvent so as to react methoxy groups of the silane with silanol groups of the membrane to incorporate epoxide groups and attaching a polyamino acid to the membrane by reacting a terminal amine group of the polyamino acid with one of the epoxide groups on the membrane. The membrane is regenerated after metal entrapment by utilizing helix-coil properties of polyamino acids
OPTIMIZATION OF PARAMETERS OF COTTON FABRIC WHITENESS
In this project work, the performance of peroxide bleaching commercial bluing agent, and different fluorescent brightening on the degree of whiteness of cotton fabric was investigated and compared. Here all the experiments were done on cotton fabric; both for woven knit structures in exhausted method. Maximum whiteness is found by applying optical brightening agent of Synowhite 4KB brand of 1.2% on the weight of materials at 80oC for 40 minutes treatment of cotton fabric along with salt of 5gm/L after bleaching. Furthermore, the influence of surface characteristics of the substrate on whiteness index was observed. CIE whiteness Index was measured by spectrophotometer at the standard illuminant D65
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