Table of Content

Open Access Original Research

Poly (Lactic Acid) (PLA)/Recycled Styrene Butadiene Rubber (rSBR) Composites

Received: 01 March 2022;  Published: 11 April 2022;  doi: 10.21926/aeer.2202012

Abstract

Recycled styrene butadiene rubber (rSBR) from waste car tires was used as a filler in poly(lactic) acid (PLA) to modify its properties. The compounds were prepared via twin-screw extrusion and molded by injection with different rSBR contents (0 to 25% wt.). Additionally, recycled rubber particle size was controlled between 125 and 1000 μm to determine the effect of this parameter. From the samples produced, a series of morphological, physical and mechanical characterizations were performed. As expected, rSBR additi [...]

1611 10551

Open Access Original Research

Reaction Kinetics and Characterization of Slag-Based, High Strength, “Just-Add-Water” Type (One-Part) Alkali-Activated Binders

Received: 03 February 2022;  Published: 08 April 2022;  doi: 10.21926/rpm.2202006

Abstract

The influence of different levels of alkalinity, expressed using M2O-to-binder ratio (n) and activator SiO2-to-M2O ratio (Ms), (M being the Na+ or K+ cation) on the reaction kinetics, compressive strength development and the reaction product formation in slag-based systems activated using alkali powders are discussed. The fundamental idea is to better understand one-part, “just-add-water” type alkali activated binders that are easy-to-use than the systems that rely on liquid activators. The difference in the behavi [...]

1645 11058

Open Access Original Research

Preparation of a Novel Bi2MoO6/Ag/Ag2CrO4 Catalyst with Promoted Visible Light Photodegradation of RhB Dye

Received: 29 January 2022;  Published: 07 April 2022;  doi: 10.21926/cr.2202008

Abstract

A series of novel Bi2MoO6/Ag/Ag2CrO4 heterostructure photocatalysts (denoted as BA-X, X = 1, 3, 5, 10) were synthesized using a coprecipitation method. These photocatalysts were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-vis spectroscopy, and X-ray photoelectron spectroscopy (XPS) and their photocatalytic properties were investigated. Compared with pure Bi2MoO6 or Ag2CrO4, BA-5 exhibited a higher photocatalytic property and broader light absorption. In addition, the surface pla [...]

1749 11719

Open Access Interview

An Interview with Dr. Roy G. Beran

Received: 02 April 2022;  Published: 07 April 2022;  doi: 10.21926/obm.neurobiol.2202118

964 7246

Open Access Research Article

Does Intensive Mindfulness Training Strengthen Sustained Attention? Examining Individual Differences in Mind Wandering during the Sustained Attention to Response Task

Received: 24 August 2021;  Published: 06 April 2022;  doi: 10.21926/obm.icm.2202016

Abstract

Mindfulness training (MT) has been shown to benefit sustained attention and mind wandering. Yet, few studies have examined whether benefits differ as a function of individual differences in mind wandering. The sustained attention to response task (SART) measured task accuracy (A'), response time variability (response time intraindividual coefficient of variation, ICV), and self-reported mind wandering in participants before (T1) and after (T2) a 1-month MT retreat (n = 56), as well as in a control group (n = 32) wh [...]

1696 21519

Open Access Original Research

Building New Nuclear in Finland: Crises Challenging Core Beliefs around Nuclear Energy

Received: 26 November 2021;  Published: 06 April 2022;  doi: 10.21926/jept.2202012

Abstract

This paper examines the building of a new nuclear plant as a greenfield operation in Pyhäjoki, Finland. A newly-founded energy company, Fennovoima, was granted a license by the Finnish parliament to build a new power plant in 2010. In the years following this Decision in Principle the project faced several obstacles. Through interviews with key actors, this paper identifies the interests and core beliefs associated with building the plant. It posits that, in Finland, the underlying ideas and values surrounding nucl [...]

1392 12906

Open Access Research Article

Mammalian MutY Homolog (MYH or MUTYH) is Critical for Telomere Integrity under Oxidative Stress

Received: 22 July 2021;  Published: 02 April 2022;  doi: 10.21926/obm.geriatr.2202196

Abstract

Telomeres consist of special features and proteins to protect the ends of each chromosome from deterioration and fusion. The telomeric DNA repeats are highly susceptible to oxidative damage that can accelerate telomere shortening and affect telomere integrity. Several DNA repair factors including MYH/MUTYH DNA glycosylase, its interacting partners Rad9/Rad1/Hus1 checkpoint clamp, and SIRT6 aging regulator, are associated with the telomeres. MYH prevents C:G to A:T mutation by removing adenine mispaired with a frequ [...]

2258 11913

Open Access Short Communication

Efficacy of a Plant-based Diet (Semi-lacto-ovo-vegetarian Diet) for Treating Constipation

Received: 23 December 2021;  Published: 02 April 2022;  doi: 10.21926/rpn.2202012

Abstract

A modern lifestyle, including dietary westernization, has increased the prevalence of constipation. The authors developed a plant-based diet for inflammatory bowel disease. This study investigated whether a diet containing a high amount of dietary fiber is also effective for constipation. Consecutive patients with constipation were recruited in this study from April 2003 to March 2004. Their constipation was unresponsive to a conventional laxative. The patients were provided a plant-based diet during hospitalizatio [...]

1779 116497

Open Access Concept Paper

The Energy of Energy Psychology

Received: 27 January 2022;  Published: 01 April 2022;  doi: 10.21926/obm.icm.2202015

Abstract

The vague or controversial use of the term energy in the clinical subdiscipline known as "energy psychology" has been an obstacle to the field's acceptance. This paper discusses five forms of energy and explores the role of each in energy psychology treatments. While patterns in (a) electrical signaling, (b) brain waves, and (c) electromagnetic fields are presumably shifted in any form of effective psychotherapy, a strength of energy psychology interventions is shown to be in their ability to initiate such effects [...]

2893 39462

Open Access Research Article

Microwave-Assisted Extraction of Phenolic Compounds from Broccoli (Brassica oleracea) Stems, Leaves, and Florets: Optimization, Characterization, and Comparison with Maceration Extraction

Received: 17 February 2022;  Published: 01 April 2022;  doi: 10.21926/rpn.2202011

Abstract

Microwave-assisted extraction (MAE) to obtain phenolics from vegetable wastes has been of recent interest. Broccoli is one of the most globally produced vegetables, and around 43% of the harvest is considered waste. Thus, given the significant quantity of broccoli waste generated, the objective of this work was to optimize the MAE, to maximize the total phenolic content (TPC) from broccoli by-products (leaves and stems) and broccoli florets. The Response Surface Analysis was used in the optimization model to evalua [...]

2895 24822

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