Biodecolorization of acid violet 19 by Alternaria solani

Microorganisms are the nature’s tools for cleaning the environment. Bioremediation using bacteria, fungi and algae is becoming an attractive option for the treatment of industrial effluents containing awide spectrum of pollutants including dyes and heavy metal ions. In the current research work, the potential of a deuteromycete fungus, Alternaria solani for the removal of a dye, Acid Violet 19 from aqueous solution was studied. The fungus showed promising potential for the decolorization of the dye (88.6%) at a dye concentration of 30 mg/L within a relatively short period of time (four days). But with increase in the contact time, the % decolorization decreased showing that some of the adsorbed dye was desorbed especially in case of higher dye concentrations. The desorption of the dye from the fungal cells at long contact time and higher dye concentrations was considered to be due to higher molecular mass, structural complexity and the presence of inhibitory groups, SO3Na in the dye

The Philosophy of Research Methodology: A View from Islamic Civilization.

The aim of this article is to highlight the philosophy of research methodology as view from Islamic civilization. Scientific research has no central focus in our modern terms apart from further dominance of nature, refining our materialistic gain and maximizing the control of wealth, improving our health and live a life full of sensual pleasure with no misery. Sadly what was vision was never fully materialized, the upper echelon of the society gained the full benefit while the lower societies were left out and further denigrated

Coming Stakes in the Ocean: Food Production, Shipping and Trade, Tourism, Ecosystem-biodiversity, New Technologies and Climate Change Challenges in Bangladesh

Blue economy is an emerging concept in all over the world where Bangladesh is not in exception. The blue economy of Bangladesh is subject to multiple interlinked activities. Among the major activities, food production, shipping and trade, tourism, ecosystem-biodiversity, new technologies and climate change challenges are the most promising sectors which are discussed in this chapter to project the present and future potential, constrains, ways to overcome in the context of the blue economy of Bangladesh following various published literatures. The review has revealed that Bangladesh has enormous resources which have great potential to uplift the existing economy, improving livelihoods, while significantly reducing environmental risks and ecological scarcities. However, there are lot of constrains which hinder to get the ultimate fruit from these potentialities. The major constrains include lack of policy, institutional or organizational structure and coordination, data or information, knowledge in innovating and diversifying marine products and services, marketing strategies, continuous scientific research, skilled manpower with motivation and dedication, public awareness, maritime security and concern in marine and coastal environment. Initiations to overcome these constrains with long and short term strategic plans and properly implementing the strategic decisions will bring the state more productive and could be a model country with blue economy approach

Plastic deformation of the CaMg2 C14-Laves phase from 50 - 250°C

Intermetallic phases can significantly improve the creep resistance of magnesium alloys, extending their use to higher temperatures. However, little is known about the deformation behaviour of these phases at application temperatures, which are commonly below their macroscopic brittle-to-ductile-transition temperature. In this study, we therefore investigate the activation of different slip systems of the CaMg2 phase and the occurrence of serrated yielding in the temperature range from 50°C to 250°C. A decreasing amount of serrated flow with increasing temperature suggests that solute atoms govern the flow behaviour when the CaMg2 phase is off-stoichiometric

Characterizations of ordered semigroups in terms of (∈, ∈ ∨q)-fuzzy interior ideals

In this paper, we give characterizations of ordered semigroups in terms of (∈, ∈ ∨q)-fuzzy interior ideals. We characterize different classes regular (resp. intra-regular, simple and semisimple) ordered semigroups in terms of (∈, ∈ ∨q)-fuzzy interior ideals (resp. (∈, ∈ ∨q)-fuzzy ideals). In this regard, we prove that in regular (resp. intra-regular and semisimple) ordered semigroups the concept of (∈, ∈ ∨q)-fuzzy ideals and (∈, ∈ ∨q)-fuzzy interior ideals coincide. We prove that an ordered semigroup S is simple if and only if it is (∈, ∈ ∨q)-fuzzy simple. We characterize intra-regular (resp. semisimple) ordered semigroups in terms of (∈, ∈ ∨q)-fuzzy ideals (resp. (∈, ∈ ∨q)-fuzzy interior ideals). Finally, we consider the concept of implication-based fuzzy interior ideals in an ordered semigroup, in particular, the implication operators in Lukasiewicz system of continuous-valued logic are discussed

Brexit or Brand it? The Effects of Attitude Towards Brexit and Reshored Brands on Consumer Purchase Intention

Copyright © 2022 The Authors. Brexit has caused a seismic shift in the British socio-economic and political landscapes, creating widespread uncertainties, while simultaneously giving hope and national pride to millions. The decision by a number of organizations to reshore their production has opened a new era for business management that challenges the axiomatic assumption of the benefits of offshored production. Although reshoring predates Brexit, the link between the two in the British context is not just serendipitous and they are argued to have reasonable interlinkages. However, there is inadequate empirical evidence to suggest that British consumers’ attitude towards Brexit has any effect on their intention to purchase reshored brands. Through a mixed-methods study comprising a survey of 415 respondents and 20 in-depth interviews, this paper addresses this research gap. Findings suggest that corporate social responsibility (CSR) and consumer reshoring sentiment (CRS) have positive effects on consumers’ attitude towards reshored brands. Despite CRS's positive influence on attitude towards Brexit, the latter does not have any significant effects on the intention to purchase a reshored brand, which is positively influenced by the attitude towards the same brand. As such, companies should enhance the image of their brands and CSR in order to harness the benefits of reshoring.University of Western Australia, as part of the Wiley – The University of Western Australia agreement via the Council of Australian University Librarians

Surface modified hybrid ZnSnO3 nanocubes for enhanced piezoelectric power generation and wireless sensory application

Piezoelectric Nanogenerators (PENGs), which can convert ambient mechanical stimuli into electrical energy, are held in high regard due to their cost-effectiveness, energy harvesting applications, and potential as self-powered sensors. We report an aluminum-doped zinc stannate (ZnSnO3) PENG that can achieve high electrical outputs with respect to the external force. In order to enrich the piezoelectric mechanics, a low-temperature solution method was adopted in our work to synthesize ZnSnO3 nanocubes with an average side length of only 30 – 55 nm. Furthermore, ZnSnO3 was doped with 1 wt% to 5 wt% of aluminum nanoparticles. We report that 2 wt% of aluminum doped ZnSnO3 showed the highest electrical output in terms of open circuit voltages and short circuit current. The nanogenerator device achieved an average open-circuit voltage of 80 V to 175 V with a frequency range of 60 BPM (Beats Per Minute) to 240 BPM, an unprecedented electrical output in comparison to current ZnSnO3 -based PENGs. With the presented high output-to-size ratio taken into consideration, the device was mounted in a helmet and tested as an energy harvester and wireless human motion sensor, which can generate electric charge as well as detect human movements and transmit the corresponding signals wirelessly. Our work- is indicative of a promising smart helmet using organic-inorganic hybrid materials

Long-term myocardial recovery after mitral valve replacement in noncompaction cardiomyopathy

Isolated noncompaction of the left ventricle is a congenital cardiomyopathy, which has been described recently, with literature limited to case reports and case series. Even though various complications have been reported with noncompaction cardiomyopathy, among them severe mitral regurgitation has been reported recently in a few cases. There is no great evidence in the literature about its management, apart from some cases of mitral valve repair and replacement in young patients. We are reporting a case of an elderly lady with isolated left ventricular noncompaction cardiomyopathy associated with severe mitral regurgitation treated with mitral valve replacement with one and half year of follow up demonstrating significant myocardial recovery

Carbon Fibers Coated with Ternary Ni-Co-Se Alloy Particles as Low-cost Counter Electrode for Flexible Dye Sensitized Solar Cell

Compared to flat devices based on rigid substrates, cable-shaped dye-sensitized solar cells hold advantages of smaller size, light weight, facile fabrication, flexibility, and low cost, thus a promising direction for applications such as wearable electronic devices. However, most reported fiber-shaped dye-sensitized solar cells use Pt wires as counter electrodes, which are high in cost. Herein, a flexible Pt-free counter electrode is fabricated via depositing ternary nickel cobalt selenide (Ni–Co–Se) particles on the surface of carbon fibers. Scanning electron microscopy and X-ray diffraction are used to characterize the counter electrode and alloy material. Results from bare and modified carbon fiber counter electrodes reveal that Ni–Co–Se alloy particles greatly enhance electrocatalytic activity, leading to significant improvement in power conversion efficiency, which is comparable with devices using carbon fiber coated with Pt as the counter electrode. The performance increase may be attributed to the improved catalytic property of CoSe2 due to its higher composition ratio and larger crystallite size. Bending and multiple irradiation cycling tests are also performed to show the superior flexibility and durability of the novel device