Table of Content

Open Access Original Research

Cradle-to-Grave Life-Cycle Assessment of Cellulosic Fiberboard

Received: 24 August 2021;  Published: 21 December 2021;  doi: 10.21926/rpm.2104049

Abstract

According to the United Nations Environment Programme (UNEP), the construction and operation of buildings accounted for nearly 38% of total global energy-related CO2 emissions in 2019. The construction sector has been striving to use more low-carbon footprint building products to mitigate climate change and enhance environmentally preferable purchasing. Over the last several decades, there has been substantial growth in engineered wood products for the construction industry. To assess these products used in constru [...]

1465 14667

Open Access Research Article

Utilization of Upgraded Recycled Concrete Aggregates and Recycled Concrete Fines in Cement Mortars

Received: 11 February 2021;  Published: 17 August 2021;  doi: 10.21926/rpm.2103035

Abstract

Waste concrete is the most predominant constituent material among construction and demolition waste. Current waste concrete recycling is limited to the use of recycled concrete aggregates as a road-base material and less as aggregates in new concrete mixes. Further, the production of recycled concrete aggregates results in the generation of a high amount of fines, consisting mainly of cement paste particles. Hence, this study aims to produce the cement mortars using the upgraded recycled concrete aggregates (sand g [...]

1795 14628

Open Access Review

Histone O-GlcNAcylation and Potential Biological Functions

Received: 05 July 2018;  Published: 17 September 2018;  doi: 10.21926/obm.genet.1803036

Abstract

Histone modifications play an important role in the control of DNA-based processes by altering the structure and function of chromatin. O-linked N-acetylglucosamine (O-GlcNAc) modification is a form of post-translational modification of proteins that affects the serine (Ser)/threonine (Thr) residues. This process is controlled by a single pair of enzymes, i.e. O-GlcNAc transferase (OGT) and O-GlcNAcase (OGA). Recent evidence indicates the existence of O-GlcNAc modification of histones, with 16 histone O-GlcNAc site [...]

2255 14622

Open Access Review

Dietary Modulation of the Gut Microbiome in Inflammatory Bowel Disease

Received: 28 April 2022;  Published: 09 August 2022;  doi: 10.21926/rpn.2203019

Abstract

Inflammatory bowel disease (IBD), which includes ulcerative colitis, and Crohn’s disease, is a chronic relapsing-remitting inflammatory state of the gastrointestinal (GI) system. The cause of IBD is multifactorial, encompassing factors of genetics, environment, and the host immune system, initiating a complex interplay of maladaptive host immune responses and subsequent chronic inflammation. Aberrant host immune responses are at least in part due to changes in the commensal microbiome, which can in turn affect the [...]

1314 14621

Open Access Original Research

Sustainable Synthesis of Zeolitic Imidazolate Framework-8 Nanoparticles and Application in the Adsorption of the Drug Chlorhexidine

Received: 06 December 2022;  Published: 13 March 2023;  doi: 10.21926/cr.2301012

Abstract

In an attempt to synthesize nanomaterial concerning chemistry, the sustainable synthesis of Zeolitic Imidazolate Framework-8 (ZIF-8) nanoparticles by a low-cost approach through the recycling of waste mother liquors was explored and then indicated the potential to remove chlorhexidine (CHLX) from an aqueous solution. ZIF-8 was produced under solvothermal reaction at 25°C and characterized by Fourier Transform Infrared Spectroscopy, X-ray diffraction, adsorption/desorption of N2, dynamic light scattering and con [...]

1802 14586

Open Access Review

A Review on the Application of the MPC Technology in Wind Power Control of Wind Farms

Received: 23 April 2021;  Published: 15 July 2021;  doi: 10.21926/jept.2103033

Abstract

Due to the uncertainty and volatility of wind speed, its natural output power also exhibits strong volatility. In order to avoid the negative effects of the excessive fluctuation of the output power of wind turbines in the wind farm and the power grid, it is very important to accurately predict and reasonably plan and control the output power of the wind farm. Model predictive control (MPC) is a type of advanced control method that can deal with a multi-input multi-output nonlinear system. Compared to the tradition [...]

2151 14580

Open Access Original Research

Zero-Emission Geothermal Power Generation: Experimental Study on Carbonate Mineralization through CO2-Andesitic Pyroclastic Rock Interaction at Oku-Aizu Geothermal Plant

Received: 27 November 2019;  Published: 12 February 2020;  doi: 10.21926/jept.2001002

Abstract

In order to achieve advancement in zero-emission geothermal power generation for fixing the CO2 in the geothermal fluids to the carbonate minerals after binary power generation and reinjection of the fluid into the reservoir, batch-type experiments and geochemical simulations of CO2-andesitic pyroclastic rock interaction (tuff from Oku-Aizu geothermal area) were performed at 150 °C with and without CO2 gas for 15 days. Despite the low Ca content (0.9% wt.%) in the rock, the Ca2+ concentrations in the solutions [...]

3524 14556

Open Access Review

The Importance of Rapport in Hypnotic Clinical Practice

Received: 18 January 2020;  Published: 27 February 2020;  doi: 10.21926/obm.icm.2001010

Abstract

This article is based on the assumption that the therapist's focused attention, open awareness and kind intention are the basic ingredients for creating a relationship of trust with the patient from the first session. He also stresses that when the attention of a genuine therapist, without prejudice or judgment, is centered on how the patient expresses him/herself and on the contents s/he proposes, the patient relies more easily on the competent care of the therapist. The author argues that to empower patients it i [...]

1875 14526

Open Access Case Report

Prone Anesthesia for a Super-Super Morbidly Obese Patient Undergoing Neurosurgery: A Case Report

Received: 03 May 2020;  Published: 24 June 2020;  doi: 10.21926/obm.neurobiol.2002064

Abstract

Obesity is on the rise around the world, carrying along with it a wide range of comorbidities and complications. We report on a super-super morbidly obese 43-year-old female, with a body mass index (BMI) of 77.85 kg/m2 (173cm, 233kg), who presented for a scheduled suboccipital craniectomy with C-1 laminectomy secondary to symptoms from an Arnold-Chiari type-I malformation. Already a challenging type of surgery, due to the patient’s extreme BMI and positioning, the surgery became more difficult. There are many [...]

1714 14525

Open Access Research Article

Evaluating the Performance of Hollow Core Slabs (HCS)-Concrete and Simplifying Their Implementation

Received: 02 March 2023;  Published: 19 April 2023;  doi: 10.21926/rpm.2302016

Abstract

The largest proportion of the material used in multistory buildings, and thus its carbon impact, is attributed to their slabs being the main contributor of weight. Because of their high strength and concrete self-weight reduction, composite beams with hollow-core slabs were created for their technical and economic benefits, making this system inexpensive and with a reduced environmental impact, thereby lowering carbon emissions. Geometrically, the hollow slab has a sequence of T and L form pieces on both sides. Hol [...]

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