by Virginia M.R. Menezes  , Gustavo M. Paula  , Liliane A. Lima  , Meiry G.F. Rodrigues  and Fabiano A.N. Fernandes

Received: 05 May 2022;  Published: 16 August 2022;  doi: 10.21926/cr.2203023

In this study, we investigated the oligomerization mechanism of the Fischer-Tropsch synthesis catalyzed by a cobalt-based catalyst supported by SBA-15. The Co/SBA-15 catalyst contained 20% w/w of cobalt. It was prepared by the wet impregnation method and characterized by X-ray diffraction (XRD), N2 adsorption-desorption, temperature-programmed reduction (TPR), and scanning electron microscopy coupled to X-ray energy dispersion spectroscopy (SEM-EDS). The FT synthesis was conducted in a slurry bed reactor operating [...]

by Kaitlyn Sills  , Alicia C. Stapp  , Laurel Lambert  and Kenya Wolff

Received: 31 August 2023;  Published: 17 January 2024;  doi: 10.21926/rpn.2401002

Schools play an integral role in providing opportunities for children of all ages to be exposed to nutrition education. There are a variety of ways children can receive nutrition education in the school setting, such as explicit lessons, modeled dialogue, and exposure to nutrition-based principles. However, there continues to be a disconnect between teacher perceptions of nutrition education and time spent implementing it in the classroom. Nutrition education can come in many forms, including hands-on gardening and [...]

by Anastasia Skonta  , Elena Gkantzou  , Konstantinos Spyrou  , Stamatia Spyrou  , Angeliki Polydera  , Dimitrios Gournis  and Haralambos Stamatis

Received: 31 July 2022;  Published: 08 October 2022;  doi: 10.21926/cr.2204032

3D printed PLA has already been demonstrated for several biotechnological applications, including enzymes immobilization. The prerequisites for an efficient screening assay include using small volumes of reagents, low cost, and rapid screening of large numbers of compounds and extracts. Hence, assays based on microtiter plates are predominant. Thus, designing and fabricating scaffolds on a similar scale, which could serve as immobilization carriers, and their recruitment in inhibitors screening studies is of great [...]

by Oleksandr Skrylnyk  , Emilie Courbon  , Nicolas Heymans  and Marc Frère

Received: 18 December 2020;  Published: 14 April 2021;  doi: 10.21926/jept.2102017

Hybrid solar thermal systems are considered to be a promising solution for delivering clean thermal energy for the building sector, especially while combining them with other renewable energy sources. Usually, solar energy production does not match the thermal energy demand, and hence the energy storage must be integrated. Thermochemical energy storage is adapted particularly to be used along with solar thermal applications. In this article, the design of the combined solar thermochemical energy storage system is p [...]

by Arnold Hendharto Widdhiarta  , Yousuke Shimaura  , Ichiro Nagai  , Takayuki Shibata  and Yutaka Moritomo

Received: 15 February 2022;  Published: 30 March 2022;  doi: 10.21926/jept.2201011

We fabricated three thermo-rechargeable batteries using low-cost transition metal hexacyanoferrate and determined the thermal voltage (Vcell) and discharge capacity (Qcell) per unit weight of the total active material in the cathode and anode. The obtained values were compared with the calculated values, which were determined by analyzing the temperature and capacity coefficients of the redox potential.

by Karen Sermon

Received: 11 August 2017;  Published: 26 October 2017;  doi: 10.21926/obm.genet.1704009

The main aim of PGS has always been to improve IVF outcome, especially in patient groups assumed to have higher rates of chromosomally abnormal embryos, such as patients of advanced maternal age. In that sense, PGS is quite different from other types of screening as discussed in other papers in this issue.Today it bears no doubt that blastocysts found to be uniformly aneuploid in a biopsy will fail to implant, or worse, will implant and lead to a pregnancy and birth carrying a major chromosomal abnormality, such as [...]

by Paul Taglieri  , Paul Milham  , Paul Holford  and R. John Morrison

Received: 07 November 2019;  Published: 13 April 2020;  doi: 10.21926/acr.2002005

Despite extensive research, the behaviour of the key nutrient element, phosphorus (P), in soil is not yet fully understood. This study focussed on the outstanding issue of the co-adsorption of protons (H+) and P by soils. We developed a congruent set of measures to determine the net H+:P co-adsorption ratio and tested it on goethite, for which a ratio of 1.6:1 had been estimated under CO2-free conditions for additions of NaH2PO4. Under our conditions, and using additions of KH2PO4, the net H+:P co-adsorption ratio [...]

by Sami Badwan  , Elizabeth Bailey  and James M. Harper

Received: 09 November 2022;  Published: 07 March 2023;  doi: 10.21926/obm.geriatr.2301226

In the 1950’s Denham Harman proposed the Free Radical Theory of Aging whereby species lifespan and individual longevities are the consequence of free radical driven damage to biomolecules. This led to decades of research to ascertain the effect of altered antioxidant defense systems on aging and mortality in an array of species using reverse genetics and dietary manipulation. Within invertebrates, the data generally support the Free Radical Theory in that overexpression of antioxidant enzymes or dietary supplementa [...]

by Sophia Demeneopoulou  , Marianna Mantzorou  , Petra Mandysova  , Nikoletta Margari  , Eleni Dokoutsidou  , Aggeliki Tsiligianni  , Chrysoula Tsiou  and Theodoula Adamakidou

Received: 09 October 2020;  Published: 02 April 2021;  doi: 10.21926/obm.geriatr.2102165

Dysphagia may become a threatening condition if not diagnosed and treated at an early stage. Healthcare professionals require simple, rapid, and reliable tools for the immediate evaluation of dysphagia in their daily clinical practice. The aim of the present study was the translation and validation of the “Brief Bedside Dysphagia Screening Test-Revised (BBDST-R)” tool in the Greek language in a sample of patients with neurological disorders. The present study was designed as a cross-sectional study cond [...]

by G. S. N. V. K. S. N. Swamy Undi  and Rohit Kantikar

Received: 07 September 2023;  Published: 01 March 2024;  doi: 10.21926/aeer.2401009

Particulate matter (PM) constitutes a significant risk factor for environmental health regarding ambient air quality. An epidemiological investigation has determined that inadequate air quality is associated with the development of lung and cardiovascular diseases, chronic ailments, respiratory infections, and a significant number of fatalities on a global scale. According to the World Health Organization (WHO), the annual mortality rate due to air pollution is around 7 million individuals. The necessity for resear [...]

by Tahereh Fatemian  and Ezharul Hoque Chowdhury

Received: 29 March 2019;  Published: 15 August 2019;  doi: 10.21926/obm.genet.1903090

Introduction of biocompatible ingredients into nano-material formulations has been studied as a strategy for the enhancement of the pharmacokinetics as well as pharmacodynamics of the final product. With the aim of enhancing drug loading and the ultimate efficacy, incorporation of Bovine Serum Albumin (BSA) into carbonate apatite (CA) nanoparticles structure was employed in the present study. As a result of BSA embedding in the CA formulation, approximately three-times higher loading efficiency was achieved for pac [...]

by Lars-Gunnar Lundh

Received: 27 July 2021;  Published: 15 February 2022;  doi: 10.21926/obm.icm.2201008

Experimental phenomenology is the investigation of phenomenological practices and their effects. To engage in a phenomenological practice means to focus attention on aspects of one’s experiences (e.g., sense impressions or body sensations) while adopting a specific kind of attitude (e.g., an explorative attitude) according to some set of instructions. The basic assumption is that the regulation of attention and attitudes involved in such practices may have effects on people’s health and quality of life. The present [...]

by Nadia A. Abdelmegeed Abdelwahed

Received: 01 April 2024;  Published: 19 August 2024;  doi: 10.21926/obm.neurobiol.2403241

Nowadays, mental health disorders have become a significant concern for everyone. There are diverse reasons emanating from the workplace, business, and everyday environment. Therefore, there is a current need to use technology to detect and review their symptoms and causes. Accordingly, in this study, the researcher attempted to recognize ChatGPT’s role in decision-making and the recognition of mental health disorders among Egyptian entrepreneurs. The researcher used a quantitative approach in this study based its [...]

by Jacqueline Cramer

Received: 24 September 2023;  Published: 21 November 2023;  doi: 10.21926/aeer.2304050

This paper investigates the practical implementation of transitioning to a circular economy through network governance in conjunction with public governance. The research focuses on a comparative, longitudinal analysis of three Dutch product chains (mattresses, concrete, and textiles) from 2016 to the present. The study based on action research, utilizes documents, reports from all meetings, and personal observations. Drawing from the fields of public administration and transition management, the paper addresses tw [...]

by Peter Leary  and Peter Malin

Received: 30 November 2020;  Published: 19 March 2021;  doi: 10.21926/jept.2101013

In interest of accurately modelling wellbore production in convective geothermal systems, we draw attention to two approaches to numerical simulation of crustal fluid flow. The historical "strong" approach simulates the fluid mass conservation condition on a localised finite difference mesh approximation to poroelastic continua. The more flexible "weak" approach globally enforces fluid mass conservation by in effect integrating over all numerical mesh cells. Strong formulation crustal flow simulation emerged from n [...]

by Whitney Rabacal  , Emily Rayens  and Karen Norris

Received: 02 November 2018;  Published: 27 December 2018;  doi: 10.21926/obm.genet.1804057

Pneumocystis causes life-threatening pneumonia in immunocompromised populations. More recently it has been implicated as a co-factor in a number of chronic lung diseases including chronic obstructive pulmonary disease (COPD), severe asthma, and cystic fibrosis (CF). In this review, we will examine the current literature regarding Pneumocystis and lung diseases in the HIV-infected patients and non-HIV immunocompromised populations, and the barriers to prophylaxis and treatment in these patients. Trimethoprim sulfame [...]

by Irina Udina  , Yurii Vasiliev  , Vladimir Volobuyev  , Olga Gulenko  and Alesya Gracheva

Received: 24 December 2021;  Published: 27 June 2022;  doi: 10.21926/obm.genet.2202158

In this study, we investigated VNTR polymorphisms in intron 2 of the IL1RN gene (rs2234663) and intron 3 of the IL4 gene (rs8179190) related to the development of caries in school children (N = 196) with mixed bite dentition from Krasnodarskii Krai. The genotypes A1/A1 and L/L (L-"long" alleles) (rs2234663) provided resistance to the most intensive form of dental caries. The groups of children with DFC (decompensated form of caries) were significantly different from the pooled group SFC (subcompensated form of cari [...]

by Mayra De Grazia  , Cassandra Trottier  , Sergio R.A. Dantas  , Yathiraj Nagaraju  , Rouzbeh Ziapour  , Hian F. Macedo  and Leandro F.M. Sanchez

Received: 11 July 2022;  Published: 07 September 2022;  doi: 10.21926/rpm.2203017

The ever-growing urgency to combat climate change has led the civil construction industry to develop and adopt sustainable construction materials and methods. The so-called recycled concrete aggregate (RCA) emerges as an alternative to decrease the carbon footprint of new concrete construction, the disposal of waste concrete, and the use of non-renewable natural resources such as cement and aggregates. RCA can be produced from crushing waste concrete; yet challenges remain when using RCA in concrete especially its [...]

by Ashley Rosenberg  , Gilles Dongmo  , Pallavi Yadav  , Nathaniel Lee  and Kunal Yadav

Received: 13 August 2018;  Published: 21 September 2018;  doi: 10.21926/obm.transplant.1803020

Even though renal ectopia is common, there have been very few reports of these kidneys being used for transplantation. The concerns with using such kidneys are subnormal function, ureteral anomalies and complications and anomalous arterial supply which makes arterial reconstruction challenging. Majority of reports are for use in living donor transplantation where good preoperative imaging is available. There is very scant literature reporting use of ectopic pelvic kidneys from deceased donors. We report a case of a [...]

by Maria Irene Bellini  , Joseph Ayathamattam  and Paul Elliot Herbert

Received: 19 October 2018;  Published: 19 November 2018;  doi: 10.21926/obm.transplant.1804026

Obesity is on the rise and the number of end stage renal disease patients who are obese parallel this trend. There is no universally accepted guideline for wait-listing end stage renal disease obese patients in order to reduce surgical complications and improve survival of the kidney graft. Criteria for acceptance are variable among transplant centres, as do post-transplant policies. Careful risk assessment to maximise the benefits of the limited organ donor resource must be undertaken prior to waitlist an obese ki [...]

by Lena Natapov  , Ayelet Berg-Warman  , Ile Kermel Schiffman  and Shlomo Paul Zusman

Received: 01 May 2022;  Published: 17 November 2022;  doi: 10.21926/obm.geriatr.2204212

To understand dental service utilization in the over-65 age group and to identify the main patterns and barriers to uptake of dental care after the 2019 expansion under the National Health Insurance Law to include dental benefits for the over-75 age group. Phone interviews with a random sample of 512 people over the age of 65 were conducted between February and April 2020. About half had visited a dentist during the previous year (an average of 2.9 visits) while 17% reported they had never visited one. Dental servi [...]

by Rosaria Ferreri  , Simonetta Bernardini  , Franco Cracolici  and Francesca Bechini

Received: 29 September 2018;  Published: 01 February 2019;  doi: 10.21926/obm.icm.1901008

Background: Complementary medicines (CM), including homeopathy, acupuncture, and traditional Chinese medicine, have been introduced for cancer patients undergoing chemotherapy and radiotherapy treatment in the Pitigliano Hospital Centre of Integrated Medicine in order to minimize the side effects of these treatments, which improves quality of life and adherence to conventional therapies. Methods: Cancer patients (240) were enrolled in an integrated care model offering a comprehensive protocol including homeopathy a [...]

by Charitha Thambiliyagodage  , Madara Jayanetti  , Geethma Ekanayake  , Amavin Mendis  , Heshan Liyanaarchchi  and Supuni Wijayawardana

Received: 10 April 2024;  Published: 13 June 2024;  doi: 10.21926/cr.2402006

Ilmenite is a mineral whose crystallinity can be altered by chemical treatment, producing TiO2 and iron and titanium-based metal nanocomposites, which are applicable mainly for photocatalysis. Porous and crystalline biomass-derived carbon materials include graphene oxide, reduced graphene oxide, graphitic carbon nitride, catalytically graphitized sucrose and chitosan, and activated carbon. Ilmenite-based metal oxides coupled with biomass-based carbon materials are effective in environmental remediation, especially [...]

by Glauce Kelly Silva do Nascimento  , Tatiane Monteiro dos Santos  , Irene Andressa  , Vivian Machado Benassi  , Nathalia de Andrade Neves  and Marcio Schmiele

Received: 08 May 2024;  Published: 05 September 2024;  doi: 10.21926/rpn.2403013

Bread stands out for its versatility and accessibility, appealing to individuals across various ages and social classes. Consequently, it presents an attractive opportunity for incorporating ingredients that offer health benefits to consumers. In this context, the current study aimed to evaluate the technological properties of sandwich bread (specific volume, water activity, moisture, instrumental color, and texture) prepared with a partial substitution (5% w/w) of wheat flour (WF) with purple corn cob flour (PCF) [...]

by Imogen Crook  , Richard J. Brown  and Tobyn Bell

Received: 05 March 2025;  Published: 19 May 2025;  doi: 10.21926/obm.icm.2502022

Depression is a leading cause of disability with many individuals experiencing recurrent episodes of depression across their lifetime. Existing treatment approaches have varied degrees of effectiveness, and the value of social prescribing practices is being recognised. Given the persistent nature of depression, many individuals seek out alternative methods to manage their own symptoms. Open-water swimming is becoming increasingly popular as a means of supporting mental health. There is an emerging evidence base ind [...]