Re-visiting in search of excellence a portfolio management prospective
An investor considering securities investments faces the challenge of deciding which securities to invest in from a vast number of options and allocating his cash among them. The investor is once again faced with the decision of which assets to hold and how much to invest in each security. The two most significant qualities of a portfolio are risk and return. The investor seeks to select the best portfolio by weighing the risk and return characteristics of all available options. Individual stocks and portfolio characteristics alter over time. This necessitates an investor's investment portfolio to be reviewed and revised on a regular basis. An investor always puts his money into a portfolio in the hopes of getting a decent return that is proportional to the risk he is willing to take. The portfolio's return on investment must be quantified, and the portfolio's performance must be assessed.
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Introduction of the Transtheoretical Model and Organizational Development Theory in Weight Management: A Narrative Review
The transtheoretical model of behavior change is an integrative theory of treatment that analyses a person's readiness to adopt a new, healthier habit and offers solutions, or change processes, to help them do so. Stages of change, processes of change, and levels of change, self-efficacy, and decisional balance are among the constructs in the model. The transtheoretical model is also known by the acronym "TTM" and the term "stages of change," however the latter word is a synecdoche because the stages of change are only one component of the model, which also includes processes, levels of change, and so on.
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Cobalt and Nickel Complexes of Oxazole Thiosemicarbazone, Synthesis, Structural and Antimicrobial Activity
The ligand, 2-methyl-1,3-oxazole-4-carbaldehyde thiosemicarbazone (HL) was synthesized by reacting equimolar amounts of thiosemicarbazide with the corresponding aldehyde. The synthesized ligand was reacted with Ni(II) and Co(II) chlorides in the 2:1 mole ratio of ligand: metal. These led to the isolation of two new complexes, namely [Ni(HL)2]Cl2 (1), [Co(L)2].1.3Cl (2), the ligand and its metal(II) complexes were characterized by elemental analysis, IR, 1H NMR, 13C NMR spectroscopic methods, UV-Vis spectrophotometry and X-ray diffraction. The X-ray structural studies of the ligand and their corresponding metal complexes 1, 2 revealed that: The free ligand exist in the thione form and remain as neutral tridentate with NNS donor atoms in the complex (1) but in the complex (2) the HL acted as uninegative tridentate ligand, beside Presence of uncoordinated chloride ions in the cavities of the crystal lattice of the complex (2). One of these chlorides is hydrogen bonded to a proton of the amine of the ligand. The coordination environment of Ni(II) and Co(II) metal complexes 1, 2, has a distorted octahedral structure. The oxazole N and S atoms in the two complexes are cis to each other whereas the azomethine N atoms are trans coordinated. The ligand and its metal complexes were tested for their in vitro biological activity against seven standard microorganisms: two Gram positive namely Bacillus subtilis and Micrococcus luteus, and one Gram negative bacteria Escherichia coli and four fungi: Saccharomyces cerevisiae (Baker’s yeast), Candida maltosa, Mucor spec., and Aspergillus niger, at a concentration 100µg/ml. The results showed that the ligand HL and its Ni(II) Co(II) complexes appear inhibition activity for Mucor spec. only.
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List of articles published in the month of May 2022
Table of contents for the month of May 2022
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