Fishery and certain biological aspects of Stolephorus devisi (Whitley) at Cochin, west coast of India

Stolephorus devisi is the most abundant of the six white bait species landed at Cochin and contributes upto 55.8% of the white bait catch. Peak landings were noticed during April•May and November•December. The individuals in the landings ranged from 50 to 98 rrun in total length. The species attained a total length of 88mm at the end of frrst (ear. The length-weight relationship was found to be W=O.()()()()1236356 L2.98 for males and W=O.OOOOO5873346 L3.O for females. The length at first maturity for the species was 56 mm

Night fishing for oceanic tunas at Visakhapatnam

Tunas comprising of several genera and species are emerging as an important pelagic resource of Visakhapatnam. Of the several species contributing to the tuna fishery of the region, the yellow fin tuna (Thunnus albacares) forms the major component of the catc

Exploring the Effectiveness of Privacy Preserving Classification in Convolutional Neural Networks

A front-runner in modern technological advancement, machine learning relies heavily on the use of personal data. It follows that, when assessing the scope of confidentiality for machine learning models, understanding the potential role of encryption is critical. Convolutional Neural Networks (CNN) are a subset of artificial feed-forward neural networks tailored specifically for image recognition and classification. As the popularity of CNN increases, so too does the need for privacy preserving classification. Homomorphic Encryption (HE) refers to a cryptographic system that allows for computation on encrypted data to obtain an encrypted result such that, when decrypted, the result is the same value that would have been obtained if the operations were performed on the original unencrypted data. The objective of this research was to explore the application of HE alongside CNN with the creation of privacy-preserving CNN layers that have the ability to operate on encrypted images. This was accomplished through (1) researching the underlying structure of preexisting privacy-preserving CNN classifiers, (2) creating privacy-preserving convolution, pooling, and fully-connected layers by mapping the computations found within each layer to a space of homomorphic computations, (3) developing a polynomial-approximated activation function and creating a privacy-preserving activation layer based on this approximation, (4) testing and profiling the designed application to asses efficiency, performance, accuracy, and overall practicality

Degree of Labeling of Folate-BSA with Rhodamine Dye

Folic acid is a very important vitamin. It is needed by cells for various physiological functions. It plays an important role in growth and multiplication of cells and therefore is needed very much by cancerous cells. One of the ways folate reaches the cells is the folate receptor mediated endocytosis. Therefore folate binding proteins are abundant on cancerous cells. Clinical trials proved that the folate receptor targeted drug delivery is very promising to increase the drug exposure to malignant cells and to reduce the toxicity to healthy cells. It was recently discovered that folate receptor is also over expressed on activated macrophages which could contribute to diseases such as crohn’s disease, rheumatoid arthritis, lupus, inflammatory osteoarthritis, vasculitis, diabetes, ischemia, reperfusion injury, sarcoidosis, glomerulonephritis, psoriasis and sjogren’s disease. Therefore folate receptor targeted drug delivery would also be beneficial for above diseases. Folic acid needs a carrier to take it to folate receptor. Serum Albumin is found to be suitable carrier for folate. In this project we make several conjugates of Folate-BSA and determine the simple way of making Folate-BSA for commercial use. The project also focuses on determining the degree of labeling of Folate on BSA. Finally Folate-BSA is labeled with dyes fluorescein and Rhodamine which can be used in future studies as fluorescent imaging agents

Assessing status of pests and diseases with cluster approach - A case of coconut in Kasaragod district in Northern Kerala

The main objective of integrated pest and disease management is to intervene efficiently to reduce crop damage at minimum costand inflicting minimum damage to the environment. The basic requirement for such programmes is the availability of a costeffectivesampling method for assessing the status of incidence and intensity of the disease/pest attack wherein, accurate estimatesis achieved through minimum efforts. In the present study, a sampling strategy and measures of severity and crop loss forsimultaneous assessment of incidence of major pests and diseases of coconut were formulated and implemented in Kasaragoddistrict of Kerala. The sampling methodology involved a cluster approach in which four clusters of at least 500 bearing palmsfrom a minimum of ten coconut gardens, representing the geographical strata of the panchayath, were scored visually for theincidence of major pests and diseases. District level estimates were derived incorporating area under coconut in each panchayathas the weight. Information on geographic coordinates was recorded and utilized for preparation of thematic maps using Arc-GIS.Further, crop loss due to the major pests and diseases were also estimated under certain scenarios. The study revealed that diseaseslike stem bleeding and Thanjavur wilt were more prevalent in areas experiencing high temperature and low rainfall whereas,incidence of bud rot disease was significantly higher in hilly regions where low temperature and high humidity prevailed. Incidenceof pests like eriophyid mite and coreid bug was higher in coastal areas of the district. The study could serve as a model for similarstudies in future and the information emerging out of this study would help in formulating integrated pest and disease managementprogrammes at grass root level

Investors Behavioural Bias and Trading Behaviour - A Systematic Review

A systematic review of literature has been conducted on investor’s trading behaviour, andscientific literature until the year 2020 has been reviewed. It comprises research articles, reviews, and research reports. Appropriate keywords have been used, and each chosen literature has been assessed for itsquality. Based on the quantitative and qualitative research, evidence has been made, and a multi-dimensional framework has been developed, which is the basis for further research.The review examinesthe factors influencing women investors trading in thestock market and the behavioural biases affecting women in due course of investment and trading.Findings from research evidence have been integrated through thematic synthesis. The findings broadly indicate that there is less participation by females trading inthe stock market, and the behavioural biases explored by past researchers have not explored on females alone. Hence, this study can be further used for analyzing thebehavioural biases inherent in women investors trading inthe stock market

Qualitative analyses of verbal fluency performance in persons with right hemisphere damage

In the context of ongoing debates on the arguable role of right hemisphere in lexico-semantic processing, we investigated the clustering, switching, and time-course of lexical retrieval in right hemisphere damage (PwRHD). “Clustering refers to the production of words within the semantic or phonemic subcategories and switching refers to the ability to shift between the clusters” (Troyer, Moscovitch, & Winocur, 1997, p. 140). Time course analysis permits variation in retrieval process with passage of time. Previously, Beausoleil, Fortin, Le Blanc, and Joanette (2003) investigated the time course of lexical retrieval in people with RHD and reported that their participants retrieved maximum words at the beginning of the trial, a pattern similar to that exhibited by people with left hemisphere damage and non-brain damaged groups of their study. However, the clustering and switching remain to be investigated in people with right hemisphere damage

Engaging Children in Question Asking for Problem Finding to Encourage Creative Thinking in Primary School Science Teaching

Encouraging creative thinking is considered as the general function of education (NACCCE, 1999) and one of the aims under the national curriculum of England (DfEE/QCA, 1999). Though creative thinking is a broad term, in science it is seen as finding solutions to problems(D. P. Newton, 2010).Scientific enquiry is a creative process, commonly beginning with a question or problem, then generating a tentative answer or solution, and testing it. Generally teachers provide ready-made questions or problems for children to solve. If children themselves can find scientific problems or questions to solve in the classroom, then learning would be more engaging as it generates interest and motivation. A review of existing literature on creativity in education focusing on its least recognised aspect, problem finding, revealed the potential for children's questions, particularly wonderment questions in encouraging deep thinking. Some studies recognised the scarcity of children's questions especially explanatory questions and questions that leads to investigations in the primary school science classroom. Therefore, the study sets out to explore strategies to stimulate children to raise questions with the potential to become problems to solve in science. The study employed mixed methods using a descriptive questionnaire survey, classroom observations, short interviews, content analysis and controlled interventions with children to collect data. The sample included teachers, student teachers and Key Stage Two primary school children. It used phenomenography to analyse the data and derive useful conclusions thereby following an interpretivist approach. A theory explaining the complex process of question asking which involves the construction and articulation of descriptive and causal mental models of situations emerged from the study. Several factors are suggested which influence and order the process, especially the situation or stimulus, the teaching and learning environment, and the attributes of the child. It takes time to produce questions which could lead to scientific enquiry and it needs teaching skill to provide effective opportunities for children to ask questions, and help them put them into a suitable form

New record of the stromateoid fish Psenopsis intermedia (Piontrovskiy, 1987) from Indian waters

The occurrence of Psenopsis intermedia off Malpe, in the Arabian sea, which is not recorded so far from the Indian waters is reported. The comparison of the mersitic and morphometric characters of the specimens with the holotype and paratype of the species is presented