Analyses with Pecha Kucha Presentation

Conduct three (3) interviews – one with an adolescent, an adult, and a senior. Determine the most useful questions to ask based on your understanding of the individual. Include concepts that will provide examples of psychoanalytic, learning, cognitive, biological, and ecological theories. Potential questions/topics include –

Adolescent: Tell me about your parents, siblings, other family, friends, neighbors, pets, school, teachers, favorite foods, favorite activities. What are your responsibilities at home? What do you want to do when you grow up? What is good/are the challenges about being the age that you are?
Adult: What were you like as a child? Describe your parents’ marriage, past/current friends. How did you spend summers, holidays? Describe your goals, memories about your first car, first date, and/or most memorable event. What is good/are the challenges about being the age that you are?
Senior: Travel through time. Birthdate and location. Discuss your life and influences on development. Describe memories of world events or other experiences. Reminisce about dating, parents, parenting, teenage life, job/career path or relationships. What are your regrets, disappointments, and/or happy experiences? What is good/are the challenges about being the age that you are?
In your analysis, determine what you learned from each interviewee’s stage of life. Do not re-state every response to your interview questions. Focus on how each interview is connected to lifespan development theories.

Pecha Kucha is a fast-paced, creative presentation style. Prepare 20 PowerPoint slides and talk about each one for 20 seconds (Total presentation time – 6 minutes, 40 seconds). This is your opportunity to describe your interviewees’ responses in a brief format. Illustrate theories highlighted in your analysis. It is important to practice your presentation.

Sample Solution

A synthesized BiVO4/TiO2 nanocomposite by hydrothermal method was employed for the removal of MC-LR. Response surface methodology (RSM) was applied to assess the effects of operating variables (pH, contact time, and catalyst dose) on the MC-LR removal. The coefficient of determination (R2) was calculated 98.7% for the response. The obtained maximum MC-LR removal efficiency was 98% under the optimum conditions. The prepared nanocomposite was approved as a promising nano-photocatalyst for MC-LR removal under visible-light irradiation. The BiVO4/TiO2 as an important nano-catalyst with technological potential can be used directly in environmental preservation, specifically in the decontamination of MC-LR from aqueous solutions.

Keywords: Microcystin-LR (MC-LR), BiVO4/TiO2, Nanocomposite, Hydrothermal, Photocatalysis, Visible light

Introduction

Cyanobacteria are a group of microalgae that are known as the oldest oxygen-producing organisms (3.5 billion years) and called blue-green algae, Myxophyceae, Cyanophyceae and Cyanophyta [1,2]. Many cyanobacteria produce a wide variety of toxins (cyanotoxins) include Hepatotoxins, neurotoxins, cytotoxins, dermatoxins and irritant toxins [3]. Among them, Hepatotoxins are the most prevalent cyanobacterial toxins [4,5] that are included microcystins, nodularins, and cylindrospermopsins [1]. Microcystins (MCs) are potent hepatotoxins produced by the number of planktonic cyanobacteria such as Anabaena, Anabaenopsis, Oscillatoria, Nostoc, Planktothrix, and Microcystis [6]. These toxins are very soluble in water and based on their two variable amino acids have more than 80 variants [7,8]. The US Environmental Protection Agency (US-EPA) has a special concern to 4 MCs (LR, RR, YR, and LA). The main structural difference between these is the replacement of single amino acids [9]. Microcystin-leucine-arginine (MC

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