Table of Content

Open Access Review

Chronic Lung Allograft Dysfunction, a Review in 2023

Received: 25 May 2023;  Published: 20 February 2024;  doi: 10.21926/obm.transplant.2401207

Abstract

Chronic allograft dysfunction (CLAD) is one of the leading causes of death after lung transplantation [1]. CLAD is a progressive and irreversible decline in lung function after transplant, manifested as an obstructive, restrictive, or mixed ventilatory impairment without any identifiable etiology as infection or acute rejection. Multiple risk factors have been associated with this condition. Despite its significant effect on the mortality of transplanted patients, there is still a lack of powerfully effective thera [...]

1342 15537

Open Access Original Research

High Data Rate MWD Mud Pulse Telemetry – From Mysteries to Discovery

Received: 07 September 2024;  Published: 06 December 2024;  doi: 10.21926/jept.2404023

Abstract

Our new approach to MWD mud pulse telemetry offers significant increases over conventional data rates. Using waveguide acoustics, we show that common drilling communications channels support carrier frequencies exceeding several hundred Hertz. Such signals are prone to attenuation over large drill pipe distances. Low power, self-spinning “turbosirens” are designed, providing high torque and rotation rate performance at all flow rates without electric or hydraulic motor drives. The sirens rotate, drawing only on the [...]

2416 15532

Open Access Review

Short Sleep in Pupils in Japan: Current Status and Associated Factors

Received: 21 February 2019;  Published: 22 July 2019;  doi: 10.21926/obm.neurobiol.1903034

Abstract

Background: Several recommendations on optimum sleep duration have been published for adolescents to secure a healthy life. This study aimed to compare the sleep duration of middle and high school pupils in Japan with the recommended values and determined the factors associated with the duration of sleep among them. Methods: A total of 1766 completed questionnaires were obtained from grades 7 to 12 pupils in Japan. The questionnaire addressed the following points: sleeping, eating, defecation, physical activity, sc [...]

1494 15532

Open Access Communication

One-Pot Tandem Synthesis of Nitriles and Amides from Biomass Platform Compounds

Received: 28 December 2021;  Published: 21 February 2022;  doi: 10.21926/cr.2201004

Abstract

In recent years, research on converting biomass platform compounds into high-value chemicals and pharmaceutical intermediates has garnered huge interest. Nitrile and amide groups are key structures in natural products and biologically active molecules. The direct conversion of biomass platform compounds into nitriles and amides will undoubtedly be an important guide for biomass utilization. In this paper, a facile and efficient triphosgene-assisted one-pot conversion for aldehydes and ketones into nitrile and amide [...]

3052 15519

Open Access Research Article

Meat Waste Valorization through Protein Hydrolysis using Different Types of Proteases

Received: 12 May 2021;  Published: 08 November 2021;  doi: 10.21926/rpm.2104045

Abstract

Five different commercial proteases (Alcalase 2.4L, Flavourzyme 1000L, Neutrase, Protamex, and PTN) were evaluated for the simultaneous recovery of protein and lipids through hydrolysis. The hydrolysis reaction was monitored using the pH-stat procedure, in which samples were collected after 240 min of hydrolysis using each enzyme. The samples were analyzed for the degree of hydrolysis, protein hydrolysate, collagen, lipids, and fatty acids. A clear relationship was observed between the degree of hydrolysis and the [...]

1807 15517

Open Access Review

Advances in Human Islet Processing: Manufacturing Steps to Achieve Predictable Islet Outcomes from Research Pancreases

Received: 15 October 2018;  Published: 26 February 2019;  doi: 10.21926/obm.transplant.1901052

Abstract

Background: This presentation of a six-year study processing human islets for research and transplantation includes a review of multi-center transplant studies identifying key variables critical for successful islet processing and defines standardized processing procedures required to provide highly purified, functional Human Islets. Methods: Human islet processing methods are defined in detail with pancreas retrieval, shipping, trimming for processing, collagenase distension, controlled digestion by digestion/filt [...]

2022 15496

Open Access Original Research

Durability of Alkali-Activated Materials Made with a High-Calcium, Basic Slag

Received: 09 June 2021;  Published: 13 October 2021;  doi: 10.21926/rpm.2104041

Abstract

Alkali activated (AA) materials have been investigated for decades as an alternative to Portland cement (PC) products. Most consist of a silicate waste activated with alkalis, which leads to lower green-house gas emissions and a substantial drop in the use of unrenewable material resources. This paper studies the durability of AA materials made with a ground granulated blast furnace slag (GGBS) from Dublin, activated with sodium hydroxide (NaOH), and sodium silicate (Na2SiO3), both combined and separately, and cure [...]

1477 15479

Open Access Communication

Therapeutic Musical Scales: Theory and Practice

Received: 19 November 2020;  Published: 24 May 2021;  doi: 10.21926/obm.icm.2102019

Abstract

Using musical scales in a therapeutic key is one of the fundamental music therapy techniques of the Yoga of Sound (Nāda Yoga). The practice consists of singing particular sound formulas (scales), which are devised on a logical mathematical basis formed by specific musical intervals. These scales can bring to the surface, in a clear (objective), recognizable, and predictable way, psycho-emotional states and transform the blocked emotional energies. These blocked emotional energies are caused by repeated emotional st [...]

2024 15475

Open Access Review

Informatics and Artificial Intelligence Approaches that Promote Use of Integrative Health Therapies in Nursing Practice: A Scoping Review

Received: 30 December 2019;  Published: 17 February 2020;  doi: 10.21926/obm.icm.2001006

Abstract

Integrative health (IH) therapies are increasingly used to manage health conditions, but barriers hindering nurses from offering IH therapies persist. Informatics and artificial intelligence (AI) approaches have potential to promote nurses’ professional use of IH therapies. The purposes of this review are to (1) describe the state of the science of informatics and AI approaches promoting nurses’ use of IH therapies and (2) identify gaps in literature for future investigations. This systematic scoping review followe [...]

3058 15458

Open Access Original Research

The Art of (Up)Recycling: How Plastic Debris Has Become a Matter of Art?

Received: 11 June 2021;  Published: 18 October 2021;  doi: 10.21926/aeer.2104025

Abstract

Since 1907, when Bakelite was invented, there has been a dramatic rise in the daily usage of plastic-like materials. Today, its negative impacts are a part of scientific studies and public debates. Art and artists play a significant role in these discussions. They mediate between the specialist content and public awareness. This study is dedicated to the artworks of artists using plastic waste collected from the seashore. I organized their works into three lines, within which artists have different threads of plast [...]

1454 15441

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