114 research outputs found
Variation in ectotherm thermal tolerances with elevation and temperature across biological scales
No full text•Aim: Variation in thermal tolerances along environmental gradients is assumed to follow similar patterns across different biological scales, including within and between species, and across communities. However, this assumption has yet to be tested using comprehensive datasets collected through standardised methodologies.
•Location: Southern Asia.
•Time Period: 2017–2019.
•Major Taxa Studied: Ants, beetles, grasshoppers, and spiders.
•Methods: We quantified the associations between thermal tolerance traits and elevation or temperature at three biological scales (community, broad taxonomic group, and species) along two distinct elevational transects in Southern Asia. In total, we measured thermal tolerances of over 15,000 individuals from 114 arthropod species belonging to four invertebrate taxa (ants, beetles, grasshoppers, and spiders). We compared the relationships at each scale using mixed‐effects models.
•Results: At the community scale, across all individuals of all species, we found a consistent decline in the values of three thermal tolerance traits (upper tolerance, lower tolerance, and tolerance breadth) with elevation along the Himalayan transect but an increase in the values of upper and lower tolerance along the Sulaiman transect. The relationships of thermal tolerance traits and elevation/temperature varied among the groups and species between the Himalayan and Sulaiman transects. This suggests that factors beyond elevation, including vegetation composition, microclimate, landscape features, and local adaptation, drive observed variation in thermal tolerance traits among and within species.
•Conclusion: Our study highlights the interplay between thermal physiology and the environment across different habitats and biological scales. Our findings indicate that predicting biodiversity responses to environmental change based on thermal tolerance–environment relationships requires careful consideration of group‐ and species‐level variation. This is essential for improving the accuracy of climate change impact assessments on biodiversity
Service innovation and service innovation performance: A study of banking services
No full textThis study empirically examines the relationship between service innovation and service innovation performance. Typology of service innovation (SI) based on new service offering/product (NSO), new service process (NSP) and new service business model (NSBM)is tested for their likely effect on service innovation performance (SIP) of banks from a developing country context in the face of business environment (BE) characterized by dynamism and competitiveness. It uses quantitative data gathered through cross-sectional self-administered survey questionnaire on a 5 -point Likert-type scale from a sample of 220 managers from the banking organizations to predict the impact of service innovation on service innovation performance. Data are analyzed through SPSS-19 and Amos-18 by means of bivariate correlation and regression. Results indicate a strong impact of multi-dimensional service innovation on service innovation performance. Each dimension of service innovation significantly predicts service innovation performance. Business environment theorized in terms of competition and uncertainty fails to moderate the relationship between service innovation and service innovation performance. In this way, this study offers many valuable insights in the field of service innovation and performance management areas which can be valuable to several stakeholders such as researchers, practitioners and policy makers in developing and implementing optimum service innovation strategies to augment and synergize performance of their services
Sandal reactive dyes decolorization and cytotoxicity reduction using manganese peroxidase immobilized onto polyvinyl alcohol-alginate beads
No full textDye decolorization and detoxification potential of Ca-alginate beads immobilized manganese peroxidase
No full textDye decolorization and detoxification potential of Ca-alginate beads immobilized manganese peroxidase
No full textDesign and analysis of a hybrid power system for an offshore aquaculture site in Newfoundland, Canada
No full textThe offshore aquaculture industry in Canada is bound to rely on non-renewable energy sources i.e. Diesel Generators (DGs) to meet its intensive energy needs due to absence of utility’s electrical infrastructure. The said energy source is expensive, detrimental for the marine ecosystem, difficult to manage its transport and storage at site. This thesis presents a comprehensive solution to replace the high-cost energy source with a cost-effective and environmentally friendly energy source for an offshore aquaculture site located near Red Island, Newfoundland, Canada. The first step involves inputting the actual energy requirements of the site into Homer Pro software to design a hybrid power system, primarily featuring a floating solar power system (FSPV) to replace DGs. The techno-commercial viability of the designed system is assessed in three scenarios (Base, Ideal, and Worst), all of which show convincing and encouraging levels of renewable energy penetration. By comparing the cost of electrcity calculated by the software with the existing setup's energy cost, it is evident that the FSPV system is economically advantageous in all computed scenerios, base case of the designed FSPV system is 42% cost-effective. To validate the design, the system is modeled in MATLAB, and its dynamic performance is analyzed under varying conditions such as irradiance, temperature, and load side variations. The simulation results demonstrate the system's satisfactory and reliable response in all scenarios. For remote monitoring, a low-cost and open-source LoRA-based SCADA system is implemented. Additionally, an interactive Graphical User Interface (GUI) is developed to visualize historical and real-time data, showcasing the system's performance. The assembled hardware and results affirm that the proposed design is capable of providing a remote monitoring solution for offshore aquaculture sites. The findings underscore the potential of FSPV systems as a viable and sustainable solution for powering fish farms, thereby contributing to the overall sustainability of the aquaculture industry.Includes bibliographical reference
Effects of Intravenous Dexmedetomidine on Shivering after Cesarean Delivery under Neuraxial Anesthesia-A Randomized Controlled Trial
No full textNot Availabl
Characterization of purified and Xerogel immobilized Novel Lignin Peroxidase produced from <it>Trametes versicolor</it> IBL-04 using solid state medium of Corncobs
No full textAbstract Background Cost-effective production of industrially important enzymes is a key for their successful exploitation on industrial scale. Keeping in view the extensive industrial applications of lignin peroxidase (LiP), this study was performed to purify and characterize the LiP from an indigenous strain of Trametes versicolor IBL-04. Xerogel matrix enzyme immobilization technique was applied to improve the kinetic and thermo-stability characteristics of LiP to fulfil the requirements of the modern enzyme consumer sector of biotechnology. Results A novel LiP was isolated from an indigenous T. versicolor IBL-04 strain. T. versicolor IBL-04 was cultured in solid state fermentation (SSF) medium of corn cobs and maximum LiP activity of 592 ± 6 U/mL was recorded after five days of incubation under optimum culture conditions. The crude LiP was 3.3-fold purified with specific activity of 553 U/mg after passing through the DEAE-cellulose and Sephadex-G-100 chromatography columns. The purified LiP exhibited a relatively low molecular weight (30 kDa) homogenous single band on native and SDS-PAGE. The LiP was immobilized by entrapping in xerogel matrix of trimethoxysilane (TMOS) and proplytetramethoxysilane (PTMS) and maximum immobilization efficiency of 88.6% was achieved. The free and immobilized LiPs were characterized and the results showed that the free and immobilized LiPs had optimum pH 6 and 5 while optimum temperatures were 60°C and 80°C, respectively. Immobilization was found to enhance the activity and thermo-stability potential of LiP significantly and immobilized LiP remained stable over broad pH and temperature range as compare to free enzyme. Kinetic constants Km and Vmax were 70 and 56 μM and 588 and 417 U/mg for the free and immobilized LiPs, respectively. Activity of this novel extra thermo-stable LiP was stimulated to variable extents by Cu2+, Mn2+ and Fe2+ whereas, Cystein, EDTA and Ag+ showed inhibitory effects. Conclusions The indigenously isolated white rot fungal strain T. versicolor IBL-04 showed tremendous potential for LiP synthesis in SSF of corncobs in high titters (592 U/mL) than other reported Trametes (Coriolus, Polyporus) species. The results obtained after dual phase characterization suggested xerogel matrix entrapment a promising tool for enzyme immobilization, hyper-activation and stabilization against high temperature and inactivating agents. The pH and temperature optima, extra thermo-stability features and kinetic characteristics of this novel LiP of T. versicolor IBL-04 make it a versatile enzyme for various industrial and biotechnological applications.</p
Enhanced catalytic features of sol–gel immobilized MnP isolated from solid state culture of Pleurotus ostreatus IBL-02
No full textService Innovation and Service Innovation Performance: A Study of Banking Services
No full textThis study empirically examines the relationship between service innovation and service innovation performance. Typology of service innovation (SI) based on new service offering/product (NSO), new service process (NSP) and new service business model (NSBM)is tested for their likely effect on service innovation performance (SIP) of banks from a developing country context in the face of business environment (BE) characterized by dynamism and competitiveness. It uses quantitative data gathered through cross-sectional self-administered survey questionnaire on a 5 -point Likert-type scale from a sample of 220 managers from the banking organizations to predict the impact of service innovation on service innovation performance. Data are analyzed through SPSS-19 and Amos-18 by means of bivariate correlation and regression. Results indicate a strong impact of multi-dimensional service innovation on service innovation performance. Each dimension of service innovation significantly predicts service innovation performance. Business environment theorized in terms of competition and uncertainty fails to moderate the relationship between service innovation and service innovation performance. In this way, this study offers many valuable insights in the field of service innovation and performance management areas which can be valuable to several stakeholders such as researchers, practitioners and policy makers in developing and implementing optimum service innovation strategies to augment and synergize performance of their services
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