41 research outputs found

    Insights into interdisciplinary approaches for bioremediation of organic pollutants: innovations, challenges and perspectives

    Get PDF
    Modern industrialization has originated a tremendous industrial growth. Discharge of industrial effluent is a critical threat to a safe environment. Removal of various pollutants from industrial wastewater is obligatory for controlling environmental pollution. Bioremediation using biotechnological interventions has attracted greater attention among the researchers in the field of control and abatement of environmental pollution. This review is aimed to introduce methods for bioremediation on the removal of organic pollutants from industrial wastewater that have been discussed, and the kinetic models that are related to it have been introduced. In addition, biotechnological interventions on bioremediation of pollutants have been discussed fingerprinting of microbial sp. present at polluted sites. Microbial electrochemical technologies such as a green technology for the removal of pollutants from industrial effluents and simultaneous resource recovery from industrial waste have been discussed to generate up-to-date scientific literature. This review also provides detailed knowledge gaps, challenges and research perspectives related to the topic.(undefined)info:eu-repo/semantics/publishedVersio

    Nucleation of the electroactive γ phase and enhancement of the optical transparency in low filler content poly(vinylidene)/clay nanocomposites

    Get PDF
    Poly(vinylidene fluoride), PVDF, based nanocomposites with different clays structures have been processed by solvent casting and melt crystallisation. Depending on the melting temperature of the polymer, the nanocomposite recrystalises in the electroactive or non electroactive β-phase of the polymer. This fact is related to the thermal behaviour of the clay. For montmorillonite clay, the full crystallisation of the electroactiveγ-phase occurs for clay contents lower than 0.5 wt%, allowing the nanocomposites to maintain the mechanical properties of the polymer matrix. The electroactivity of the material has been proven by measuring the piezoelectric d33 response of the material. The obtained value of d33 is -7 pC/N, lower than in β-PVDF obtained by mechanical stretching, but still among the largest coefficients obtained for polymers. Further, the optical transmittance in the visible range is strongly enhanced with respect to the transmittance of the pure polymer. Finally, it is demonstrated that the nucleation of the β-phase can be also obtained in other clays, such as in kaolinite and laponite.Fundação para a Ciência e a Tecnologia (FCT) - NANO/NMed-SD/0156/2007, PTDC/CTM/69316/2006, PTDC/CTM-NAN/112574/2009, SFRH/BD/62507/2009.FEDER funds through the "Programa Operacional Factores de Competitividade – COMPETECOST Action MP1003, the ‘European Scientific Network for Artificial Muscles’ (ESNAM)

    A review of the benefits and drawbacks to virtual field guides in today’s Geoscience higher education environment

    Get PDF
    Virtual Field Guides are a way for educators to tackle the growing issue of funding pressures in areas of higher education, such as geography. Virtual Field Guides are however underutilised and can offer students a different way of learning. Virtual Field Guides have many benefits to students, such as being more inclusive, building student skills and confidence in a controlled environment pre fieldtrip and can increase engagement in the topic studied. There are also benefits to the educator, such as reduced cost, more efficient students on fieldwork tasks and the ability to tailor and update their field guides to suit their needs. However there are drawbacks in the challenge of creation and their outcome as educational standalone tools. This paper reviews the literature around the benefits and draw backs to the creation and incorporation of virtual field guides in geoscience education. © 2017, The Author(s)

    Indian Women in Technology: An Empirical Analysis of Role Conflict

    Get PDF
    An important issue that our society has been facing in the recent past is the changing work and family roles of Indian women. Woman, today, function within multiple roles simultaneously operating in both work and family domains as a mother, spouse, housekeeper, as well as maintaining full-time employment outside the home. The relationship between these dual roles has thus become a topic of interest among organizational researchers. This study deals with selected antecedents and their influence on the role conflict among Indian women in technology. A sample size of 598 Indian women in technology was taken for the study and the result shows the occurrence of work-family conflict. Three predominant factors that influence the work-family conflict time-dimension are work exhaustion, work thought interference and perceived workload in the order of merit

    Indian Women in Technology: An Empirical Analysis of Role Conflict

    Get PDF
    An important issue that our society has been facing in the recent past is the changing work and family roles of Indian women. Woman, today, function within multiple roles simultaneously operating in both work and family domains as a mother, spouse, housekeeper, as well as maintaining full-time employment outside the home. The relationship between these dual roles has thus become a topic of interest among organizational researchers. This study deals with selected antecedents and their influence on the role conflict among Indian women in technology. A sample size of 598 Indian women in technology was taken for the study and the result shows the occurrence of work-family conflict. Three predominant factors that influence the work-family conflict time-dimension are work exhaustion, work thought interference and perceived workload in the order of merit.

    Does adding milk to tea delay gastric emptying?

    No full text

    Multilayer spin-coating deposition of poly(vinylidene fluoride) films for controlling thickness and piezoelectric response

    No full text
    Poly(vinylidene fluoride), PVDF, films have been processed by spin-coating with controlled thickness by multilayer film deposition. Films with thickness ranging from 300 nm to 25 m, -phase content up to 80%, piezoelectric coefficient d33 up to ~−20 pC/N and an optical transmittance in the visible range higher than 70%, were obtained with a one to three layer deposition process. The influence of the annealing temperature in the different layers is discussed as well as the possibility of obtaining functionally graded electroactive polymers though controlling spin-coating deposition parameters and thermal annealing of the different layers.This work is funded by FEDER funds through the “Programa Operacional Factores de Competitividade – COMPETE” and by national funds by FCT – Fundac¸ ão para a Ciência e a Tecnologia, project references Grants PTDC/BIO/70017/2006, PTDC/CTM/69316/2006, NANO/NMed-SD/0156/2007, and grant SFRH/BD/44289/2008 (V.F.C.). The authors also thank support from the COST Action MP1003, ‘European Scientific Network for Artificial Muscles’

    Differential bleaching of corals based on El Niño type and intensity in the Andaman Sea, southeast Bay of Bengal

    No full text
    The Andaman coral reef region experienced mass bleaching events during 1998 and 2010. The purpose of this study is to investigate the role of the El Niño in the coral reef bleaching events of the Andaman region. Both Niño 3.4 and 3 indices were examined to find out the relationship between the mass bleaching events and El Niño, and correlated with sea surface temperature (SST) anomalies in the Andaman Sea. The result shows that abnormal warming and mass bleaching events in the Andaman Sea were seen only during strong El Niño years of 1997–1998 and 2009–2010. The Andaman Sea SST was more elevated and associated with El Niño Modoki (central Pacific El Niño) than conventional El Niño (eastern Pacific El Niño) occurrences. It is suggested that the development of hot spot patterns around the Andaman Islands during May 1998 and April–May 2010 may be attributed to zonal shifts in the Walker circulation driven by El Niño during the corresponding period
    corecore