by Dipti Nikam  and Abbas S. Milani

Received: 05 May 2022;  Published: 24 April 2023;  doi: 10.21926/rpm.2302017

This study evaluates the influence of different loading angles and the area of loading on the ensuing stress distribution and the physical response of a natural central incisor tooth, using a 3D finite element analysis. The CAD model of the incisor tooth assembly (including enamel, dentin, periodontal ligament, pulp, gingiva and jaw bone) was subject to an external (chewing) load of 100 N, over four different areas and at four different angles along the vertical. It was observed that the tooth experiences high von- [...]

by Jeamichel Puente Torres  , Harold Crespo Sariol  , Thayset Mariño Peacok  , Ángel Brito Sauvanell  , Greet Cuyvers  , Guy Reggers  , Pieter Samyn  , Dries Vandamme  , Jan Yperman  , Peter Adriaensens  and Robert Carleer

Received: 25 October 2022;  Published: 21 April 2023;  doi: 10.21926/aeer.2302028

The chemical regeneration of exhausted granular activated carbon (GAC) from a water treatment plant to produce dialysis water used in hemodialysis treatments for chronic renal disease patients from a general Hospital of Ciego de Avila province, Cuba, was investigated. Activated carbon (AC) exhausted mainly by inorganics (Ca (Ca-chelates), Mg and Na) was regenerated using hydrochloric acid and acetic acid (one regeneration cycle). Solutions of 5%, 10%, 15% and 20%(v/v) as well as four contact times (2 h, 4 h, 6 h an [...]

by Walter Calderón-Gerstein  , Gabriela Torres-Samaniego  , Kevin Pazos-Sovero  , Mirella Calderón-Anyosa  , Merly Quisurco-Cárdenas  and Viviana Dorregaray-Lizárraga6

Received: 01 December 2022;  Published: 19 April 2023;  doi: 10.21926/obm.genet.2302180

This study aims to determine the relationship between the severity of lung tomographic compromise with arterial oxygenation and inflammatory markers in patients with COVID-19, and to evaluate the relationship between the CTSS tomographic severity score and the mortality risk in a high-altitude population. A retrospective, longitudinal study reviewed medical records between January and July of 2021 at the Daniel Alcides Carrión Regional Teaching Clinical Surgical Hospital in Huancayo. Categorical variables were anal [...]

by Amer Belal  , Shawna Lord  , Rohan V. Mehta  and Alfonso Santos

Received: 28 October 2022;  Published: 19 April 2023;  doi: 10.21926/obm.transplant.2302182

Cryptococcosis is a common invasive fungal infection in solid organ transplant recipients (SOTR) that can be challenging to manage. We discuss a case of disseminated cryptococcosis in a transplant recipient. A 26-year-old woman with a history of ESRD from C1q nephropathy, living-related kidney transplant in early 2012, and allograft nephrectomy in 2015, received a deceased donor kidney transplant (DDKT). Induction after the first transplant was anti-thymocyte globulin (ATG) and maintenance immunosuppression (IS) in [...]

by Abdullah S. Binsaeedu  , Moustafa Khalifa  and Jocelyn Tan-Shalaby

Received: 30 December 2021;  Published: 19 April 2023;  doi: 10.21926/rpn.2302007

The ketogenic diet (KD) is currently well known in the lay media as a quick way to lose weight. However, the KD is not a new medical concept. The KD was used in the early 1900s to control seizures. However, as we developed more effective pharmacological agents, we used the KD less until it became practically obscure by the 1980s. Similar to the effects of fasting, the KD leads to the production of ketones as an alternative energy source to glucose. Therefore, the KD has many beneficial metabolic effects, such as an [...]

by Amir Mahboob  , Omid Hassanshahi  , Abdulqaiyoum Hakimi  and Mohammad Safi

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

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 [...]

by Gerhard Litscher

Received: 18 April 2023;  Published: 19 April 2023;  doi: 10.21926/obm.icm.2302020

This editorial briefly describes possible relationships and similarities between chess and acupuncture. Although the methods of chess and acupuncture could not be more different, possible joint effects on the brain can be hypothesized. However, the effectiveness of these joint effects has yet to be proven in scientific studies. Both chess and acupuncture can be used to improve physical and mental well-being. According to the author, the Yintang point could play a key role here.

by Kristen R Szempruch  , Alec D Martschenko  , Harendra Arora  , Robert S Isaak  , Ravindra Prasad  , John L Schmitz  , Chuning Liu  , Fei Zou  and Pablo Serrano Rodriguez

Received: 13 February 2023;  Published: 18 April 2023;  doi: 10.21926/obm.transplant.2302181

Fluid management intra- and post-operatively for kidney transplant recipients (KTR) is essential to maintain adequate perfusion to the kidney. 0.9% normal saline (NS) is commonly used, but it can cause hyperchloremic metabolic acidosis, which may result in hyperkalemia and lead to delayed graft function (DGF). Plasma-Lyte A (PA) is an alternative option that has a lower amount of chloride and a neutral pH, which may offset the risk of hyperkalemia. The aim of this study is to determine the incidence of DGF in KTRs [...]

by Regiani Aparecida de Almeida  , Ricardo Vicente de Paula Rezende  , Flavia Aparecida Reitz Cardoso  and Lucio Cardozo Filho

Received: 17 December 2022;  Published: 18 April 2023;  doi: 10.21926/jept.2302016

In this work with CFD simulations, the evaluation of the supercritical anti-solvent (SAS) process for producing nanoparticles from an expanded solution of ethanol/solute in carbon dioxide is reported. The influence of the solution and antisolvent flow rates on mean particle size, the flow dynamic, and the supercritical mixture's jet velocity must be well established in the literature and analyzed. The high flow rate of the anti-solvent resulted in increased mean particle sizes for all studied cases. At the lowe [...]

by Luana Góes Soares  and Annelise Alves

Received: 14 December 2022;  Published: 17 April 2023;  doi: 10.21926/cr.2302016

The synthesis of fibers by electrospinning allows for obtaining nanostructures of one-dimensional materials with good flexibility, optical and catalytic properties, high surface area and porosity. They can be used in applications such as: catalysts, solar cells, fuel cells, membranes, and hydrogen batteries, among others. Here we emphasize that few reports in the literature describe the existing synergism between the optical and photocatalytic properties of TiO2, and the influence of this synergism on the formation [...]

by Victoria S. Jiminez  , Minh Chung  , Mohammad Saleem  and Nabiha Yusuf

Received: 02 July 2022;  Published: 17 April 2023;  doi: 10.21926/obm.geriatr.2302233

Skin aging is a complex process that involves several extrinsic and intrinsic factors and skin health is an indicator of the well-being of an individual. In recent years, there have been numerous developments using computerized systems to aid in finding solutions and treatments to skin aging processes. Tools like artificial intelligence (AI) can aid in finding solutions and treatments for skin aging. AI can also help in monitoring or identifying early signs of skin aging. Within the field of skin aging, several inn [...]

by Jaspreet Kaur  , Khushveer Kaur  , Khushwinder Kaur  , Avtar S. Matharu  and Surinder K. Mehta

Received: 14 December 2022;  Published: 14 April 2023;  doi: 10.21926/aeer.2302027

Continued industrialization, urbanization and ecological destruction have caused significant environmental problems, particularly increased water pollution. Introducing harmful organic and inorganic effluents into watercourses has limited the supply and accessibility of safe and affordable drinking water. There is an urgent need to find green and sustainable abatement solutions for water remediation, many based on nanoparticles. The primary objective of this review is to explore and have a comprehensive discussion [...]

by Traci Jarrett  , Ilana Haliwa  , Jennifer Ludrosky  , Ashley Mason  , Gretchen Prather  , Brittney Barlett  , Amy Snodgrass  and Geri Dino

Received: 30 November 2022;  Published: 13 April 2023;  doi: 10.21926/obm.icm.2302019

Teacher burnout is one of the primary drivers of turnover. Skills such as improved classroom management have been shown to mitigate teacher burnout. COVID-19 created classroom disruption and an unprecedented youth mental health crisis. This study examined the effectiveness of a school-based mindfulness training at improving classroom management self-efficacy and reducing teacher burnout during COVID-19. Elementary school personnel were invited to participate in two versions of Kidding Around Yoga training and to im [...]

by Aniebiet D. Udoh  , Ogheneruona E. Diemuodeke  , Mohammed M. Ojapah  , Fidelis I. Abam  and Joseph C. Ofodu

Received: 29 December 2022;  Published: 13 April 2023;  doi: 10.21926/jept.2302015

The quest to decarbonize the energy space to avert the negative climate change consequences calls for using low/zero-carbon energy conversion technologies in the energy generation space. The Organic Rankine Cycle is a low/zero-carbon energy conversion technology for recovering waste heat from low to medium-temperature heat sources and for biomass conversion. Therefore, this paper presents the thermodynamic optimization, with an artificial bee colony algorithm, of different ORC configurations, including simple organ [...]

by Mohammed Naveed

Received: 22 December 2022;  Published: 12 April 2023;  doi: 10.21926/rpm.2302015

Composite materials with aluminum as matrix material have a wider amplitude of large-scale applications in engineering. Some salient features of aluminum matrix composites are, low density, low thermal coefficient of performance and low weight and high strength. Among the various series of aluminum alloy, Al6061 have been widely used by researchers due to its outstanding properties particularly as they are heat treatable. Aluminum 6061 alloys have been reinforced with various particulate reinforcements such as sili [...]

by Alicia Aguirre  , Sandra El Khori  and Rafael Borneo

Received: 12 December 2022;  Published: 12 April 2023;  doi: 10.21926/rpn.2302006

Celiac disease (CD) is one of the most common intestinal diseases in humans today. The only "cure" for this disease is a strictly gluten-free diet. Bread is a highly accepted food product. But, bread is a product that owns its technological properties to the presence of gluten. Bread without gluten has different texture, palatability, and sensorial properties. Therefore, new products are needed to solve this problem. Chickpeas are an inexpensive source of protein for making gluten-free baked goods. In this study, w [...]

by Beth Levant  , Emma Nguyen  , Jennifer A. Villwock  and Ann M. Manzardo

Received: 27 February 2023;  Published: 10 April 2023;  doi: 10.21926/obm.icm.2302018

Impostorism is prevalent in medical students and negatively impacts wellness, contributing to stress and burnout. Perceived competence is noted as one attribute underlying impostorism. A curricular change that resulted in improved United States Medical Licensing Examination (USMLE) Step 1 scores and student self-perceptions of preparedness for clinical training was used as a natural experiment to assess the effects higher competence/preparedness, based on an objective indicator and self-perceptions, on impostorism, [...]

by Ilirjana Zekja  , Fatjona Kamberi  , Ria Bruijn  , Tedi Kokuri  and Evanthia Asimakopoulou

Received: 18 January 2023;  Published: 10 April 2023;  doi: 10.21926/obm.neurobiol.2302166

The COVID-19 pandemic has resulted in the worst public health catastrophe in recent history, impacting people's mental health and increasing concern over vaccinations. Between early May and late June 2021, a web-based survey that included higher education institutions from three countries (Albania, Belgium, and Cyprus) was conducted. The purpose was to assess the impact of the COVID-19 pandemic on the mental health of academic staff, what affects their readiness to get the COVID-19 vaccine, and whether there is a l [...]

by Michelle N. Bremer  , Garrick J. Gama  , Omkar Rao  , Eugene Golts  , Deepa Kurup  , Aarya Kafi  , Christine M. Lin  , Gordon Yung  and Kamyar Afshar

Received: 28 November 2022;  Published: 10 April 2023;  doi: 10.21926/obm.transplant.2302180

Race, while a social construct, has a strong effect on a person’s health. There is limited data on racial disparities within lung transplantation (LTx), especially for Hispanic recipients. Therefore, the aim of this study was to identify inequalities that may involve this population. We analyzed historical data from the Organ Procurement and Transplantation Network (OPTN) and performed a retrospective review of Hispanic and Caucasian patients who underwent lung transplantation in the United States between May [...]

by Erivaldo Genuíno Lima  , Fabiana Medeiros Nascimento Silva  , Tellys Lins Almeida Barbosa  and Meiry Gláucia Freire Rodrigues

Received: 20 December 2022;  Published: 07 April 2023;  doi: 10.21926/cr.2302015

This work prepared mordenite using seeds and without organic structure-directing agents (OSDAs). The Mo/Mordenite was prepared through wet impregnation and the catalysts’ performance was checked for transesterification of soybean oil with methanol. The mordenite zeolite was prepared through hydrothermal crystallization under static conditions with a molar composition of 6Na2O:Al2O3:30SiO2:780H2O. The catalyst samples were characterized crystallinity through X-ray diffraction, elemental composition by X-ray fluoresc [...]

by Jeff Callaghan

Received: 19 October 2022;  Published: 07 April 2023;  doi: 10.21926/jept.2302014

During February 2022 major riverine flooding occurred in an area which has the fastest population growth in Australia. This extended from the Mary River in Southeast Queensland (SEQ) to the Clarence River in Northeast NSW (NENSW). Two centres within this area were devastated by floods unprecedented in living memory. One was the Brisbane Metropolitan area where all-time record daily rainfall in the suburbs flooded creeks. This creek flooding was much worse than that caused by the Brisbane River itself where Wivenhoe [...]

by Yusuke Kataoka

Received: 25 October 2022;  Published: 06 April 2023;  doi: 10.21926/aeer.2302026

Understanding the urban environment and the health status of residents is necessary for appropriate administrative services and regional management. This study used indicator scores derived from the area statistics of cities in the Tokyo metropolitan area to identify factors that affect health status. Indices were classified into two groups: health-related and non-health-related. The index values of each group served as the observed variables and were statistically standardized. The relationship between the two gro [...]

by Beren Crim Sabuncu  , Wenyi Li  and Amy L. Ai

Received: 03 November 2022;  Published: 06 April 2023;  doi: 10.21926/obm.icm.2302017

There has been a paucity in the literature on the protective effects of spiritual and social support as it pertains to trauma symptoms following a disaster. This secondary analysis investigated: a) the longitudinal analysis of the effect of perceived spiritual support (PSS; measured using PSSS-S2) on posttraumatic stress symptoms (PTSS); and b) the effect of social support and Wave-1 PTSS results on Wave-2 PTSS among Hurricane-Katrina (H-K) volunteers. We hypothesized that, 1. The shortform PSSS-S2 would have an ad [...]

by Michael Falkenstein  and Ute Brüne-Cohrs

Received: 03 April 2023;  Published: 04 April 2023;  doi: 10.21926/obm.geriatr.2302232

EditorialDriving Safety in Healthy Aging and Age-Related DiseasesMichael Falkenstein *, Ute Brüne-CohrsALA Institute, 44805 Bochum, Germany; E-Mails: falkenstein@ala-institut.de; Ute.Bruene-Cohrs@ruhr-uni-bochum.de * Correspondence: Michael Falkenstein; E-Mail: falkenstein@ala-institut.deSpecial Issue: Driving Safety in Healthy Aging and Age-Related DiseasesOBM Geriatrics 2023, volume 7, issue 2 doi:10.21926/obm.geriatr.2302232Received: April 03, 2023Accepted: April 03, 2023Published: April 04, 2023

by Suresh Keshavamurthy  and Cody Russell

Received: 11 January 2023;  Published: 04 April 2023;  doi: 10.21926/obm.transplant.2302179

A boundless spectrum of chronic lung diseases is said to effect over 500 million persons globally. Lung transplantation is a well-established therapeutic option for patients suffering from end-stage lung diseases, however waitlist mortality and primary graft failure remain major determinants as post-transplantation 5-year survival is just above 50 percent. Recent innovations in lung transplantation have been aimed at increasing organ availability, improving allograft quality, function, and longevity. Ex-vivo Lung P [...]