Down syndrome detection using modified adaboost algorithm

In human body genetic codes are stored in the genes. All of our inherited traits are associated with these genes and are grouped as structures generally called chromosomes. In typical cases, each cell consists of 23 pairs of chromosomes, out of which each parent contributes half. But if a person has a partial or full copy of chromosome 21, the situation is called Down syndrome. It results in intellectual disability, reading impairment, developmental delay, and other medical abnormalities. There is no specific treatment for Down syndrome. Thus, early detection and screening of this disability are the best styles for down syndrome prevention. In this work, recognition of Down syndrome utilizes a set of facial expression images. Solid geometric descriptor is employed for extracting the facial features from the image set. An AdaBoost method is practiced to gather the required data sets and for the categorization. The extracted information is then assigned and used to instruct the Neural Network using Backpropagation algorithm. This work recorded that the presented model meets the requirement with 98.67% accuracy

Molecular detection of Hepatozoon spp. in domestic cats of Kerala

Vector-borne diseases are an important cause of morbidity and mortality in domestic cat population and hepatozoonosis is one such infection. Incidence of hepatozoonosis has been described in a variety of animal species but information on cats is scarce. To investigate the occurrence of this pathogen in domestic cats, blood samples were collected from domestic cats from three districts of Kerala (Thrissur, Kannur and Wayanad). Field-stained blood smears were examined to detect the presence of gamonts of Hepatozoon spp. and the samples were subjected to molecular analysis by PCR amplification. Out of 122 blood samples screened, none of the sample revealed the presence of gamonts of Hepatozoon on microscopic examination. Polymerase chain reaction targeting 18S rRNA gene of Hepatozoon spp. demonstrated seven positive cases with a prevalence of 5.74 per cent. Results of this study indicate that hepatozoonosis is established within the domestic cats in Kerala and warrant the adoption of control measures

Service Failures and Recovery Strategies in E-tailing: Examining the effects of Product Type and Transaction Frequency

The purpose of this paper is recognize product type differences on post recovery satisfaction levels when online purchase failures happen at any stage during an order fulfilment cycle. In particular, we determine how it changes based on the recovery strategy adopted. Findings support the hypothesis that the satisfaction regarding an online purchase reduces when the product is purchased with more shopping effort, i.e. customers will have more satisfaction regarding the order fulfilment process when buying a convenience good than buying a speciality good. This study is unique in that, unlike previous studies on order fulfilment process in e-tailing investigating the relationship between severity of a service failure and post recovery satisfaction, we examine how does the satisfaction levels upon service recovery strategy adopted changes based on the frequency of purchase of the customer on an e-tailing platform. Results suggest that the satisfaction after an online purchase failure and its recovery tends to be high for a customer who has a high frequency of purchasing online than a person with a low frequency of purchasing online

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Not AvailableBacterial wilt incited by Ralstonia pseudosolanacearum (Rps) race 4 biovar 3 is a serious threat to ginger (Zingiber officinale Rosc.) cultivation throughout the ginger growing tracts and warrants effective remedial measures since most of the strategies failed at field level implementation. After a series of experiments, calcium chloride was found to be effective against Rps both in vitro and in planta and its prophylactic effect has been successfully demonstrated under field conditions. CaCl2 at a concentration of > 2% significantly inhibited Rps under in vitro conditions. Calcium is an important nutritional element imparts a major role in plant disease resistance, and numerous studies have demonstrated the mitigating effect of calcium for disease management. CaCl2 being inhibitory to Rps, the mechanism of inhibition by CaCl2 against Rps was elucidated by a series of in vitro assays including swarming motility and biofilm formation. Direct inhibition was also studied using Scanning Electron Microscopy (SEM). The minimum bactericidal concentration and minimum inhibitory concentration were found to be around 3% while the EC 90 value was found to be 2.25%. The SEM analysis revealed the destruction of cell structure by making perforations on the cell surface. CaCl2 at the targeted concentrations inhibited biofilm formation as well as swarming motility of Rps. These findings suggest that CaCl2 exhibits strong antibacterial activity against Rps and has the potential to be used as an effective bactericide for Rps in managing bacterial wilt in ginger.Not Availabl

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Not AvailableBacterial wilt incited by Ralstonia pseudosolanacearum (Rps) race 4 biovar 3 is a serious threat to ginger (Zingiber officinale Rosc.) cultivation throughout the ginger growing tracts and warrants effective remedial measures since most of the strategies failed at field level implementation. After a series of experiments, calcium chloride was found to be effective against Rps both in vitro and in planta and its prophylactic effect has been successfully demonstrated under field conditions. CaCl2 at a concentration of > 2% significantly inhibited Rps under in vitro conditions. Calcium is an important nutritional element imparts a major role in plant disease resistance, and numerous studies have demonstrated the mitigating effect of calcium for disease management. CaCl2 being inhibitory to Rps, the mechanism of inhibition by CaCl2 against Rps was elucidated by a series of in vitro assays including swarming motility and biofilm formation. Direct inhibition was also studied using Scanning Electron Microscopy (SEM). The minimum bactericidal concentration and minimum inhibitory concentration were found to be around 3% while the EC 90 value was found to be 2.25%. The SEM analysis revealed the destruction of cell structure by making perforations on the cell surface. CaCl2 at the targeted concentrations inhibited biofilm formation as well as swarming motility of Rps. These findings suggest that CaCl2 exhibits strong antibacterial activity against Rps and has the potential to be used as an effective bactericide for Rps in managing bacterial wilt in ginger.Not Availabl

Effect of biocontrol agents on production of rooted back pepper cutting by serpentine method

Not AvailableAvailability of disease free quality planting material is a major limiting factor in black pepper cultivation. In order to meet the increasing demand and also to create awareness on good agricultural practices for healthy disease free planting material production to farmers, a nursery experiment was started with improved varieties of black pepper by adopting a non-chemical bio- intensive management strategy. Here solarization of potting mixture was the main concern followed my amending the solarized potting mixture with potential bioagents. The experiment was designed in a two factor CRD with four improved varieties and five treatments. Each treatment contains a combination of two bioagents with antifungal and nematicidal properties respectively. The common recommended fungicide Metalaxyl-Mancozeb (0.125%) and nematicide carbsosulfan (0.1%) was used as control. The treatments were incorporated individually into solarized potting mixture and planted with improved varieties used viz., IISR Girimunda, IISR Malabar Excel, IISR Shakti and IISR Thevam, The plants in each treatment were kept for multiplication by serpentine method with proper irrigation and phytosanitation. The results of plant growth and establishment in different treatments, showed that fortification of solarized potting mixture with Trichoderma harzianum + Pochonia chlamydosporia combination or combination of Streptomyces strains (Act 2+9) are significantly superior (35.46% and 21% respectively) for the production of healthy rooted planting material. IISR Malabar Excel and IISR Thevam produced the maximum number of plants from a single node cutting in treatment with T. harzianum + P. chlamydosporia (T1) (59 nos. and 51 nos. respectively) followed by IISR Malabar Excel with Act 2+9 and Act 5+9 (45 nos. each). So an average of 6-7 plants/month/cutting was produced in the potential treatment while it was only 3-4 plants in control. The advantage of the method is that, after solarization and fortification with respective bioagents, there is no need for further application of any fungicides, insecticides or any other nutrient spray as usually done. Thus the method of soil solarization followed by fortification of either with T. harzianum+ P. chlamydosporia or combination of Streptomyces strains viz., Ketasatospora setae (Act 2) and S. tauricus (Act9) is found suitable for the production of healthy quality planting material of high yielding varieties to meet the increasing demand of planting material with a C:B ratio of 1:2.Not Availabl

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Not AvailableBacterial wilt (BW) incited by Ralstonia pseudosolanacearum (Rps), is one among the most economically important and devastating disease prevalent in all the ginger growing countries. Several strategies encompassing cultural, physical and chemical means have been reported to manage bacterial wilt but with limited success. In the present study, a technology integrating physical (soil solarization), chemical (soil amelioration with calcium chloride) and biological (ginger apoplastic bacterium - Bacillus licheniformis) methods has been developed to manage BW efficiently, economically and eco-friendly. The results indicated that, CaCl2 (2 to 4%) is inhibitory to R. pseudosolanacearum under in vitro conditions. In planta evaluation under challenge inoculation showed 71%, 98% and 100% reduction in BW with B. licheniformis, 3% and 4% CaCl2, respectively. Subsequent field evaluation involving soil solarization followed by soil amelioration with CaCl2 or with B. licheniformis resulted in significant reduction in the population of R. pseudosolanacearum from 108 to 103. Further field evaluation in farmer’s plot in BW endemic regions also resulted in 100% disease suppression adopting the technology. The results emanated from the present study indicated that the technology developed which includes soil solarization along with soil amelioration with either CaCl2 3% or B. licheniformis would serve as a viable and effective integrated strategy for the management of BW in ginger.Not Availabl