Table of Content

Open Access Original Research

Synthesis of a Solid Base Catalyst Formed from Zinc(II) Acetylacetonate and Consisting of MgO Modified with ZnO

Received: 28 April 2022;  Published: 06 June 2022;  doi: 10.21926/cr.2202015

Abstract

Solid base catalysts consisting of MgO modified with 10 mol% ZnO (ZnO/MgO) were prepared by depositing zinc(II) acetylacetonate (Zn(acac)2) in polar and nonpolar organic solvents on the surface of MgO and Mg(OH)2. The process was followed by thermal decomposition in air at 773 K over a period of 3 h. The activity of MgO modified with Zn(acac)2 for base-catalyzed retroaldol reaction (the decomposition of diacetone alcohol (4-hydroxy-4-methyl-2-pentanone) to acetone) at 299 K was higher than the activity of unmodifie [...]

1500 10051

Open Access Review

Non-Coding RNAs in Cutaneous Melanoma Development, Progression and Dissemination

Received: 13 March 2018;  Published: 15 May 2018;  doi: 10.21926/obm.genet.1802020

Abstract

Melanoma is a highly aggressive skin cancer with high incidence worldwide. There is growing evidence that aberrantly expressed non-coding RNAs (ncRNAs) play a role in the development, progression and dissemination of melanoma tumor cells. Among the many types of ncRNAs described in this review, the functions of micro- and long non-coding RNAs are described and related to the six hallmarks of cancer. Recently, ncRNAs discovered in body fluids have become known as one of the most promising groups of oncological bioma [...]

2049 10049

Open Access Review

Food Insecurity, Cardiometabolic Risk and Cardiovascular Disease: A Narrative Review and Call for Action

Received: 24 September 2023;  Published: 09 January 2024;  doi: 10.21926/obm.icm.2401006

Abstract

Food insecurity and insufficient access to affordable nutrition have been associated with increased risk for the development of multiple chronic medical conditions, including cardiovascular disease. In this narrative review, we explore the association between food insecurity and the development of chronic medical conditions that confer increased cardiometabolic risk, cardiovascular disease, and mortality. We also identify the various barriers leading to food insecurity and lack of food literacy, with an emphasis on [...]

1591 10046

Open Access Research Article

Family History, Genetic, and Other Cause-Related Beliefs among Breast Cancer Survivors

Received: 27 February 2019;  Published: 26 July 2019;  doi: 10.21926/obm.genet.1903087

Abstract

Patients’ lay theories about the cause of their cancer may influence patient behavior and adjustment, they have also been found to differ substantially from scientific evidence of cancer risk factors. This report describes beliefs about genetic causes of breast cancer, among 522 recently diagnosed breast cancer survivors participating in an observational study. Patients were asked to respond to an open-ended question about the cause of their cancer. Causes mentioned included family history, genetics, lifestyl [...]

1899 10045

Open Access Original Research

How Might Changing Climate Limit Cyanobacteria Growth in Shallow Prairie Lakes? An Empirical Space-For-Time Evaluation of the Potential Role of Increasing Sulfate

Received: 20 November 2021;  Published: 15 February 2022;  doi: 10.21926/aeer.2201007

Abstract

Cyanobacteria blooms alter aquatic ecosystems and occur frequently in shallow prairie lakes, which are predicted to increase in salinity as the regional climate becomes hotter and drier. However, flat landscapes that experience depression bottom salinity with high concentrations of sulfate in addition to sodium and chloride, may mitigate nutrient increases or even inhibit cyanobacteria growth. Cyanobacteria can dominate shallow lakes with low N:P ratios because many cyanobacteria species fix dissolved N2, whether d [...]

1565 10043

Open Access Technical Note

Efficacy of LED Infrared Warming in the Periphery of the Human Body – First Investigations in a Subject using Thermography

Received: 15 April 2020;  Published: 11 May 2020;  doi: 10.21926/obm.icm.2002030

Abstract

In this technical report, we present for the first time a newly developed multimodal light-emitting diode (LED) pad for photobiomodulation (PBM). In order to demonstrate the range of possibilities for its application, we carried out a comparison of measurements with and without infrared (IR) LEDs in a volunteer, and are presenting the results. The pad consists of several components, which are mainly composed of LEDs of different modalities (IR, red, yellow, and blue). This multicolor system was applied to a periphe [...]

1948 10037

Open Access Review

Management of Cardiac Allograft Vasculopathy

Received: 31 May 2017;  Published: 28 September 2017;  doi: 10.21926/obm.transplant.1703005

Abstract

Cardiac allograft vasculopathy is one of the leading causes of death following the first 5 years after orthotopic heart transplantation along with late graft failure, likely secondary to undiagnosed CAV. Currently there is no single medical treatment available for this condition except modification of risk factors and immunosuppression. Retrasplantation remains the hope for this entity with some limitations.

1594 10037

Open Access Original Research

A Preliminary Investigation of Relationships among Pharyngeal Acidity, Dysphagia, and Pneumonia in Acute Stroke

Received: 29 October 2020;  Published: 22 February 2021;  doi: 10.21926/obm.geriatr.2101158

Abstract

Individuals with acute stroke on nonoral feeding regimens frequently develop pneumonia, questioning the long-held belief that pneumonia in stroke patients is a caused by food and liquid aspiration alone. Refluxate and colonized oral secretions are thought to contribute to an acidic oropharyngeal environment. If aspirated, these colonized oral secretions with increased acidity, can result in increased risk to the respiratory system. This study aimed to investigate the relationship between pharyngeal acidity, dysphag [...]

1817 10034

Open Access Case Report

Prolonged Maintenance of Remission with Crohn Disease Exclusion Diet (CDED) in Two Siblings with Crohn Disease

Received: 23 August 2024;  Published: 13 December 2024;  doi: 10.21926/rpn.2404020

Abstract

Dietary and nutritional interventions have been shown to have roles in managing active Crohn disease (CD), with exclusive enteral nutrition (EEN) being recommended as the preferred initial treatment in children following diagnosis. In recent years, other nutritional interventions such as the Crohn's disease exclusion diet (CDED) have been considered and evaluated for induction therapy. To date, the long-term benefits of CDED have not been established. This report highlights the outcomes of the prolonged use of CDED [...]

1494 10033

Open Access Original Research

Enhancement of String Tension Using Thin-Film Metallic Glass Coatings

Received: 16 May 2020;  Published: 15 June 2020;  doi: 10.21926/rpm.2002014

Abstract

Inspired by the application of metallic glass sheet as face material for improving the performance of golf clubs, the present work was aimed to explore the application of thin-film metallic glass (TFMG) coatings for enhancing the performance of strings. In order to achieve this aim, badminton strings were coated with TFMG coatings of different thicknesses. The compositions of these TFMG coatings were analyzed using an electron probe micro-analyzer. The amorphous structure of the film was verified using X-ray diffra [...]

1967 10027

Open Access Review

Evaluating the Efficacy of Action Observation Training in Improving Upper Limb Functionality in Children with Cerebral Palsy: A Scope Review

Received: 02 June 2024;  Published: 22 November 2024;  doi: 10.21926/obm.neurobiol.2404257

Abstract

This review evaluates the efficacy of Action Observation Training (AOT) in improving upper limb functionality in children with cerebral palsy (CP). Five studies were selected based on strict inclusion criteria, focusing on clinical interventions that assessed AOT's effects on upper limb motor skills in pediatric CP populations. Across these studies, significant improvements were observed in motor skills such as reach, grasp, and spontaneous use of the affected limb, underscoring AOT's potential functional benefits. [...]

1188 10024

Open Access Case Report

A Silent and Very Early Post-Liver Transplant Death by Candida Arteritis

Received: 29 August 2019;  Published: 28 October 2019;  doi: 10.21926/obm.transplant.1904089

Abstract

Background: Graft site candidiasis is a serious complication after solid organ transplantation, often presenting as invasive arteritis leading to graft loss or even death. Case Report: We report a case of anastomotic site candidiasis leading to arterial rupture and death at postoperative day 10 with no clinical warning signs. Preservation fluid cultures were negative and postoperative Doppler ultrasonography did not show vascular compromise. Postmortem examination revealed microscopic arterial wall abscesses harbou [...]

1678 10022

Open Access Original Research

Development of Wind IPMSG Based Bipolar DC Microgrids

Received: 25 February 2021;  Published: 22 June 2021;  doi: 10.21926/jept.2102028

Abstract

This paper presents the development of a wind Interior Permanent-Magnet Synchronous Generator (IPMSG) based bipolar DC microgrids along with various switch-mode rectifiers. Firstly, the wind IPMSG is established and adequately controlled to possess satisfactory generating characteristics during different driven speeds and loads. Later, the boost switch-mode rectifier (SMR) based bipolar DC bus is established. Further, three-phase single-switch (3P1SW) boost SMR, three-phase two-switch (3P2SW) three-level boost SMR, [...]

1847 10019

Open Access Case Report

Living with Spondylolisthesis with (Relative) Equanimity

Received: 23 April 2018;  Published: 02 July 2018;  doi: 10.21926/obm.icm.1803013

Abstract

Objectives: Living with any chronic pain condition is a challenge that can be met when one reduces reactivity to the sensory and evaluative aspects of it. The aim of this case study is to show how a clinical psychologist with expertise in chronic illness applied Buddhist principles to her own experience. Methods: When one realizes that suffering is the combination of pain plus resistance then one can learn how to accept rather than exacerbate it. Applying the Four Noble Truths from Buddhist psychology to understand [...]

2006 10015

Open Access Concept Paper

Net Zero Corridors: A Case Study Approach from Perth, Australia to Decarbonize Urban Power and Transport

Received: 27 February 2023;  Published: 17 November 2023;  doi: 10.21926/jept.2304036

Abstract

The transition to net zero cities is a pivotal challenge in the face of climate change. This research introduces a novel methodology termed "Net Zero Corridors," which emphasizes a bottom-up approach to decarbonize urban power and transport systems. By focusing on urban corridors, this method integrates distributed power systems with urban transport, offering a localized solution to the broader challenge of urban decarbonization. Drawing from urban fabric theory and urban metabolism data, the study provides insight [...]

1777 10015

Open Access Original Research

Proposal for the Sustainable Electrification of a Primary Healthcare Centre (PHC) Facility in Nigeria

Received: 06 August 2023;  Published: 24 January 2024;  doi: 10.21926/jept.2401002

Abstract

Energy is a prerequisite to running health facilities and is, therefore, key to the success of the service. Karshi primary healthcare centre (PHC) facility is confronted with an unreliable power supply that leads to a high cost of generating power from diesel to operate its equipment. This facility needs a sustainable and reliable electricity supply and therefore a change in their energy system to enable it improve its quality of healthcare delivery services. A solar energy-based electricity generation system that [...]

1471 10014

Open Access Research Article

Parkinson’s Disease Motor and Non-Motor Features Accompanying Insomnia and Excessive Daytime Sleepiness Symptoms, a Large Population-Based Study

Received: 30 June 2020;  Published: 26 August 2020;  doi: 10.21926/obm.geriatr.2003131

Abstract

Insomnia and excessive daytime sleepiness are the most common sleep disturbances in Parkinson’s disease. This study aims at better understanding how severity of PD motor and non-motor features and dopaminergic treatments contribute to these sleep symptoms in the first decade of PD. Data from a community-based cohort of PD patients was used to model cross-sectional PD-related risk factors for insomnia and EDS sleep scores using linear regression models adjusted for age, gender, and PD duration. Longitudinal changes [...]

1835 10011

Open Access Concept Paper

Spatial Relation between Wind Stress and Storm Surge during Hurricanes Laura and Delta in 2020

Received: 25 July 2021;  Published: 02 September 2021;  doi: 10.21926/aeer.2103022

Abstract

Spatial relation between wind stress and storm surge during two hurricanes in 2020 is investigated. It is found that, during Laura’s landfall, the area inside of 65 knots (34 m s -1) isotach or line of equal wind speed can produce up to 18 ft (5.5 m) inundation and during Delta, the area inside of 50 knots (26 m s -1) up to 11 ft (3.3 m) high water level above the ground. The tropical cyclone (TC) surface analysis near landfall by the Regional and Mesoscale Meteorology Branch (RAMMB) is recommended as a first [...]

2043 10009

Open Access Review

The Changed Transcriptome of Muscular Dystrophy and Inflammatory Myopathy: Contributions of Non-Coding RNAs to Muscle Damage and Recovery

Received: 28 February 2019;  Published: 16 May 2019;  doi: 10.21926/obm.genet.1902079

Abstract

In order to successfully recover from damage, skeletal muscle tissue requires proper activation of a tightly orchestrated repair program. Non-coding RNAs actively participate in this complex process of demolition and rebuilding. In this review, the contribution of dysregulated non-coding RNA expression to disease-associated pathological changes is explored in hereditary muscular dystrophies and idiopathic inflammatory myopathies. Disturbances in spatiotemporal expression of non-coding RNAs appear to be key factors [...]

2205 10002

Open Access Case Report

Liver Transplantation as a Cure for Neurologically Advanced Wilson’s disease. Learning More from Experience

Received: 05 July 2020;  Published: 12 November 2020;  doi: 10.21926/obm.transplant.2004123

Abstract

Clinical presentation and progression of Wilson’s disease can be diverse in different groups of patients. While young children most likely to present with acute or chronic liver failure, older children and adults may exhibit extrahepatic manifestation like neuropsychiatric, cardiac, renal, pancreatic and several others. Diagnosis of Wilson’s disease is based on the combination of specific clinical findings, laboratory and genetic testing. There are different modalities of treatment available for this condition. Liv [...]

1489 9997

Open Access Original Research

A Participation-Focused Exercise Intervention for Children with Neurodevelopmental Disorders: Feasibility, Acceptability, and Impact on Sleep and Wellbeing

Received: 17 November 2020;  Published: 06 May 2021;  doi: 10.21926/obm.neurobiol.2102094

Abstract

Sleep-related difficulties are common in children with neurodevelopmental disabilities. Poor sleep health is associated with detrimental impacts not only for the child/young person, but also their family members. Exercise is considered to be important for sleep health, improving duration and quality of sleep in adult studies, however there is limited literature on impact in children with neurodevelopmental disabilities, and barriers to participation exist for this group. We set out to test the feasibility and accep [...]

1825 9994

Open Access Research Article

Transmitted Donor Immunology Not Infection: Common Persistence of Donor Hepatitis C Antibody Production in Aviremic Lung Transplant Recipients

Received: 16 September 2020;  Published: 13 January 2021;  doi: 10.21926/obm.transplant.2101134

Abstract

Since 2018 The American Society of Transplant has recommended that Hepatitis C Virus seropositive positive, non-viremic donors (HCVAb+/NAT-) be considered non-infectious and safe for transplantation. This report describes clinical outcomes and HCV serological and virological outcomes following lung transplantation (LTx) utilizing such donors. This retrospective cohort study describes seven HCVAb+/NAT- donors used for bilateral LTx. Donor information was sourced from the national organ donation service and recipient [...]

1946 9989

Open Access Case Report

sSMC Characterization in a Male with Turner Syndrome Stigmata

Received: 23 March 2018;  Published: 07 September 2018;  doi: 10.21926/obm.genet.1803033

Abstract

Background: Small supernumerary marker chromosomes (sSMC) are rare cytogenetic findings in general, but especially in Turner syndrome so called sSMCT in a karyotype 46, X, +mar are even more scarce. According to the literature, sSMCT are derived from one of the Y-chromosomes in ~70% of the cases. Thus, to identify the presence of Y-chromosomal material is imperative, since these cases have an increased risk of gonadoblastoma deriving from the streak gonads. Methods: A 24-year-old short statured male presented with [...]

1882 9987

Open Access Original Research

Neural Response to High and Low Energy Food Images in Anorexia Nervosa

Received: 01 June 2021;  Published: 30 September 2021;  doi: 10.21926/obm.neurobiol.2103107

Abstract

To compare neural responses to high and low-energy food images in patients with Anorexia Nervosa (AN) and an age-matched Healthy Control (HC) group. 25 adolescents with AN and 21 HCs completed a diagnostic interview, self-report questionnaires and fMRI, during which they viewed food images evoking responses of disgust, happiness, or fear. Following whole brain analyses, neural responses in six regions of interest were examined in a series of between-group contrasts, across the three emotive categories. Compared to [...]

1267 9983

Open Access Original Research

Using Mixed Methods to Explore Older Residents' Physical Activity and Experiences of Community Active Aging Friendliness

Received: 29 October 2018;  Published: 06 January 2020;  doi: 10.21926/obm.geriatr.2001098

Abstract

Physical inactivity is the fourth leading risk factor for global mortality and as such, it is critical that physical activity guidelines for health consider equitable access to physical activity opportunities for all, including those aged 65 years and older. The purpose of this study was to examine the intersections of attributes of older people (e.g. income, gender, age, health, physical activity) and attributes of the places they live (e.g. rurality, public transit, sidewalks, parks, community centre) to explain [...]

1637 9979

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