429 research outputs found

    'Marinefish-famine'(?) In Karnataka with particular reference to Udupi district during 1998-'99

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    'Marinefish-famine' is an issue often raised by the fishermen of Karnataka over the past several years whenever, they are affected monetarily and there is a failure of major fisheries of the region like mackerel and oil sardine and the high-value resources like cuttlefishes, squids and prawnsThe production of 1,64,710 t in 1998 is less by 12.3%(23,048 t) compared to 1997 but, higher than the average production of 1.59,567 t for 1993-'97. Therefore, this marginal decrease in production in 1998 cannot be considered as anyfishfamine condition in the marine fishery sectorof the state during 1998. As far as the fishery situation during 1998-99 in the Udupi district is concerned, the study on the fish landing at the largest landing centre of the district i.e., Malpe Fisheries Harbour shows that the production during 1998-'99 was normal compared to the past several years but, when compared to the previous year (which was one of the two most productive years since the commssioning of the MFH in 1986-'87 with a record landing of 50,558 t), the landing declined by 31.4% (15,897 t). Short-term, long-term and cyclic fluctuations in marine fish landings are common features and are governed by a complex of biotic and abiotic factors and the exact causes for these variations are largely unknown. Therefore, the decrease of 12.8 and 31.4% in the marine fish landings of the state and Udupi district with reference to Malpe Fisheries Harbour respectively during 1998-'99 can be treated as one such short-term fluctuations and hence, the year cannot be considered as fish famin

    Exploitation of juveniles of the spinycheek grouper, Epinephelus diacanthus by multiday trawlers along Dakshina Kannada coast

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    The juveniles in the size range 9-24 cm are in sizeable quantities during October - May at Mangalore and Malpe landing centres of Dakshina Kannada coast. The present study is undertaken to highlight the magnitude of the exploitation of the juveniles of the Spinycheek grouper. Epinephelus diacanthus by trawlers along the Dakshina Kannada coast and its impact on the stock with a brief description on its biology. This species is known to grow to a large size and supports a fishery of some magnitude in other parts of the Indian coast. The results presented here are based on the data collected on the landing of the species at Mangalore and Malpe during 1988/'89 - 1993-'9

    PREDICTING SOCIAL NETWORK ADDICTION USING VARIANT SIGMOID TRANSFER FEED-FORWARD NEURAL NETWORKS (FNN-SNA)

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    Researchers have reflected on personal traits that may predict Social Networking Sites (SNS) addiction. However, most of the researchers involved in the findings of personality traits predictor for social networking addiction either postulate or based their conclusions on analytical tools. Moreso, a review of the literature reveals that the prediction of social networking addiction using classifiers have not been well researched. We examined the prediction of SNS addiction from a well-structured questionnaire consisting of sixteen (16) personality traits. The questionnaire was administered on the google form with a response rate of 95% out of the 102-sample size. Additionally, a three (3) variant sigmoid transfer feed- forward neural networks was developed for the prediction of SNS addiction. Result indicated that pertinence (β = 0.251, p  0.01) was the most powerful predictor of social networking addiction in general and less obscurity addiction (β = 0.244, p  0.01). Experimental results also showed that the developed classifier correctly predict SNS addiction with 98% accuracy compared to similar classifiers.     &nbsp

    Breaking Free from the Web of Violence: Asset-Based Approaches for Boys & Men of Color

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    The authors review existing knowledge about strengths-based approaches for boys and men of color. The broader goal is to contribute to the development of a research, program, and policy agenda based on the current state of scientific knowledge regarding the causes and appropriate interventions for violence, and the most effective ways to promote resilience. The authors also identify strengths and weaknesses of the scientific base, and provide a detailed description of the current state of violence programming for boys and men of color

    Fishery, biology and stock of the Indian mackerel Rastrelliger kanagurta off Mangalore-Malpe in Karnataka, India

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    The Indian mackerel, Rastrelliger kanagurta constitutes one of the most important marine fish- ery resources along Mangalore-Malpe coast. Annual average production was 9,700 t during 1997/98 to 2001/02. Since a number of gears are in operation the resource is landed through- out the year. The fishery showed a steady decline and the production was lowest during 2001 / 02. Environmental factors together with high exploitation levels seem to have caused the sharp decline in the catch. Growth parameters estimated were LU= 307 mm and K = 1.8/yr. Total mortality observed was 7.63 and natural mortality 2.63. The resource at present is being exploited at a level (present E = 0.66) higher than optimum (Emax= 0.588) indicating greater fishing pressure than sustainable levels. Appropriate management measures are discussed for preventing further deterioration of the stock

    Whitebait fishery of Mangalore - Malpe, Karnataka during 1997-2002

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    Whitebaits, with an annual average of 5,152 t formed 4.2% of the total fish catch of Mangalore-Malpe region during 1997-2002. Trawls, purseseine and ranibale contributed to the fishery with peak abundance during October-February. The fishery has registered a steady decline over the years with the lowest catch being observed in 2001-02. Three species dominated the fishery of the region. Growth parameters estimated were L= 109 mm and K = 1.5 yr -1 for Encrasicholina devisi, L= 122 mm and K = 1.1 yr -1 for Stolephorus waitei and L= 118 mm and K = 1.6 yr -1 for Encrasicholina punctifer. Total mortality estimated was 8.19, 6.18 and 8.97 respectively for the above species and natural mortality was 3.11, 2.46 and 3.18 respectively. The study indicated that the stock is under greater fishing pressure than desired. Biology of E. punctifer and S. insularis is being reported for the first time from this area

    What is the true evidence for gender-related differences during plant and cut maneuvers? A systematic review

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    Purpose Female athletes have a significantly higher risk of sustaining an anterior cruciate ligament (ACL) injury than male athletes. Biomechanical and neuromuscular factors have been reported as the main cause. The purpose of this review was to critically review results of the published literature on gender differences regarding biomechanical and neuromuscular movement patterns during plant and cutting maneuvers. Methods MEDLINE (1966 to December 2008), EMBASE (1947 to December 2008) and CINAHL (1981 to December 2008) searches were performed. The seven studies meeting the inclusion criteria were analyzed. Results Biomechanical gender differences were of questionable clinical relevance. Quadriceps dominance was not found in women. Conclusion The question raises whether ACL injuries during plant and cutting maneuvers are purely gender related and whether women do have to move like men in order to reduce injury risk? Caution is warranted in making inferences as studies were heterogeneous in terms of subject and study characteristics and had low statistical power as a result of insufficient number of subjects. It is advised that future research moves beyond the isolated gender comparison and that larger sample sizes will be included. This review may aid in improving experiments to draw valid conclusions, in order to direct future ACL injury prevention programs, which might need to be more individualized

    Assessment of the effectiveness of maintenance management systems in delivering quality maintenance services in higher institutions

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    The study assessed the effectiveness of maintenance and management systems in delivering quality maintenance services in higher institutions of learning with specific focus on the University of Lagos. There is the need for effectiveness in the management of educational buildings, facilities and supporting services. Self-structured questionnaires were administered to one hundred and ninety-one questionnaires (191) resident students of the University of Lagos, and three (3) to the maintenance executives of the Works and Physical Planning Department of the University of Lagos, with response rates of 71.73% and 100% respectively. Data collected where analysed using a combination of the Mean ranking and T-Test. Findings revealed a general dissatisfaction with the service quality delivered as the maintenance management system was not adjudged to be as effective as expected as various obstacles and factors influence the acceptable standard and quality of maintenance. The study recommended that the maintenance management team should improve on the effectiveness of their service delivery, by improving the rate of responsiveness of the maintenance staff through thorough training of skill and technical know-ho

    An improved random bit-stuffing technique with a modified RSA algorithm for resisting attacks in information security (RBMRSA)

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    The recent innovations in network application and the internet have made data and network security the major role in data communication system development. Cryptography is one of the outstanding and powerful tools for ensuring data and network security. In cryptography, randomization of encrypted data increases the security level as well as the Computational Complexity of cryptographic algorithms involved. This research study provides encryption algorithms that bring confidentiality and integrity based on two algorithms. The encryption algorithms include a well-known RSA algorithm (1024 key length) with an enhanced bit insertion algorithm to enhance the security of RSA against different attacks. The security classical RSA has depreciated irrespective of the size of the key length due to the development in computing technology and hacking system. Due to these lapses, we have tried to improve on the contribution of the paper by enhancing the security of RSA against different attacks and also increasing diffusion degree without increasing the key length. The security analysis of the study was compared with classical RSA of 1024 key length using mathematical evaluation proofs, the experimental results generated were compared with classical RSA of 1024 key length using avalanche effect in (%) and computational complexity as performance evaluation metrics. The results show that RBMRSA is better than classical RSA in terms of security but at the cost of execution time.publishedVersio
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