Beebesandberg8096

Textile dye effluents have many deleterious effects; therefore, it is essential to remove before releasing into waterbodies. This study developed a two-step process for decolorization of textile dye using sugarcane bagasse (SCB). The first step of the process involved functionalization of SCB with alginic acid and applying as packing material in column and assessing its performance for adsorptive removal of Drimarene red. The designed column showed 90% removal of the dye in dye-aqueous solution whereas 80% removal in dye-house wastewater. Adsorption capacity was increased at first 10 min and then gradually decreased with time. Breakthrough point was not achieved during the 60 min of experiment. Three non-equilibrium models were applied to understand the column bed properties. In the second step, the adsorbed dye molecules in SCB were degraded using an edible fungus Pleurotus sp. to obtain a dye-free nitrogen-rich bagasse. The fungus-treated SCB showed no residual toxicity and a considerable improvement in nitrogen content (from 0.14% to 0.62%) was noticed after the study of elemental profile. New design of the column bed, the processes of the chemical functionalization of the SCB, and bioremediation of dye treated bagasse through Pleurotus sp. offer a novel solution for efficient and safe disposal of textile dyes. PRACTITIONER POINTS Two-step process for remediation of a textile dye using an agrowaste and Pleurotus sp. Chemical functionalization of an agrowaste for enhanced dye removal. New process of adsorption-fungal degradation for safe disposal of the dyes. Novel technology for a sustainable use of the agrowaste for environmental safety.The Fundamentals of Care Framework is an evidence-based, theory-informed framework that conceptualises high-quality fundamental care. The Framework places the nurse-patient relationship at the centre of care provision and outlines the nurse behaviours required for relationship development. Numerous instruments exist to measure behavioural aspects of the nurse-patient relationship; however, the literature offers little guidance on which instruments are psychometrically sound and best measure the core relationship elements of the Fundamentals of Care Framework. This study evaluated the quality of nurse-patient relationship instruments by (1) assessing their content development and measurement properties (e.g. Etomoxir dimensionality, targeting, reliability, validity) and (2) mapping instrument content to the Framework's core relationship elements trust, focus, anticipate, know, and evaluate. Twenty-seven instruments were evaluated. Findings demonstrated that patients and nurses were rarely involved in item development. Most instruments exhibited poor measurement properties, with only one instrument having complete information on all quality indicators. Instrument content focused primarily on nurses getting to know patients and earning their trust, with only 54, 18, and 1 item(s), respectively, measuring 'focus', 'anticipate' and 'evaluate'. Hence, there does not appear to be a robust instrument measuring behavioural aspects of nurse-patient relationships, nor one capturing the relationship elements of the Fundamentals of Care Framework.

A prospective, stratified, randomized, double-blind, placebo-controlled study was conducted to observe the impact of preoperative calcitriol supplementation on serum calcium levels following total thyroidectomy.

Subjects were randomized 11 to receive 1 μg calcitriol or placebo for 1week preceding thyroidectomy. The primary outcome measure was change in serum calcium from baseline to 18 h post-thyroidectomy. Subjects were also assessed for incidence of symptomatic hypocalcemia, length of stay, readmission for hypocalcemia, and intravenous calcium supplementation.

Forty-seven patients underwent thyroidectomy; 23 received preoperative calcitriol supplementation, and 24 received placebo. Repeated measures regression demonstrated no difference in postoperative serum calcium over time (p= 0.22). There were no occurrences of hypocalcemia, intravenous calcium supplementation, or readmission in either group. No difference was observed in length of stay (p= 0.38). One patient in the calcitriol group developed Grade 3 hypercalcemia.

Preoperative calcitriol supplementation had no impact on postoperative serum calcium levels compared to placebo.

Preoperative calcitriol supplementation had no impact on postoperative serum calcium levels compared to placebo.Acanthamoeba polyphaga Mimivirus, a complex virus that infects amoeba, was first reported in 2003. It is now known that its DNA genome encodes for nearly 1,000 proteins including enzymes that are required for the biosynthesis of the unusual sugar 4-amino-4,6-dideoxy-d-glucose, also known as d-viosamine. As observed in some bacteria, the pathway for the production of this sugar initiates with a nucleotide-linked sugar, which in the Mimivirus is thought to be UDP-d-glucose. The enzyme required for the installment of the amino group at the C-4' position of the pyranosyl moiety is encoded in the Mimivirus by the L136 gene. Here, we describe a structural and functional analysis of this pyridoxal 5'-phosphate-dependent enzyme, referred to as L136. For this analysis, three high-resolution X-ray structures were determined the wildtype enzyme/pyridoxamine 5'-phosphate/dTDP complex and the site-directed mutant variant K185A in the presence of either UDP-4-amino-4,6-dideoxy-d-glucose or dTDP-4-amino-4,6-dideoxy-d-glucose. Additionally, the kinetic parameters of the enzyme utilizing either UDP-d-glucose or dTDP-d-glucose were measured and demonstrated that L136 is efficient with both substrates. This is in sharp contrast to the structurally related DesI from Streptomyces venezuelae, whose three-dimensional architecture was previously reported by this laboratory. As determined in this investigation, DesI shows a profound preference in its catalytic efficiency for the dTDP-linked sugar substrate. This difference can be explained in part by a hydrophobic patch in DesI that is missing in L136. Notably, the structure of L136 reported here represents the first three-dimensional model for a virally encoded PLP-dependent enzyme and thus provides new information on sugar aminotransferases in general.