by Simona Ruggirello  , Enrica L. Santarcangelo  and Laura Sebastiani

Received: 10 September 2019;  Published: 18 December 2019;  doi: 10.21926/obm.icm.1904066

Background: Hypnotizability is a psychophysiological trait associated with several differences including the level of functional equivalence (FE) between imagery and perception, i.e., the similarity of the cortical activations and network configurations associated with each of them. FE is stronger in high hypnotizability individuals (highs) than low hypnotizable participants (lows). In this framework, this study investigates the correlation between electroencephalogram (EEG) of imagined arm/hand movements (MI) and [...]

by Mohammed Mustafa  , Salman Pervaiz  and Ibrahim Deiab

Received: 23 February 2024;  Published: 18 June 2024;  doi: 10.21926/rpm.2402013

This paper investigates the effect of rake angle, α, cutting edge radius, r, and feed rate, f, on the cutting force and cutting zone temperature during orthogonal dry cutting of Ti6Al4V. A numerical model representative of the 2D orthogonal cutting process is developed using ABAQUS/Explicit software. Johnson-Cook, (JC) constitutive material model is used to describe material plasticity. JC damage model and energy-based fracture criterion are used to describe damage initiation and evolution. Using Minitab-19 softwar [...]

by Jeffrey B. Allen  , Guillermo A. Riveros  , Ivan P. Beckman  and Elton L. Freeman

Received: 22 August 2023;  Published: 25 October 2023;  doi: 10.21926/rpm.2304033

In this work, we apply a multiphysics approach to fused deposition modeling to simulate extrusion and solidification. Restricting the work to a single line scan, we focus on the application of polylactic acid. In addition to heat, momentum and mass transfer, the solid/liquid/vapor interface is simulated using a front-tracking, level-set method. The results focus on the evolving temperature, viscosity, and volume fraction and are cast within a set of parametric studies, to include the printing and extrusion speed, a [...]

by Joep Geraedts

Received: 13 April 2017;  Published: 26 April 2017;  doi: 10.21926/obm.genet.1702003

Mark Stoneking, who is a member of the Editorial Board of OBM Genetics has written a textbook on molecular anthropology

by Hannah Lewandowski  , Lindsay Crawford  and Paul D. Loprinzi

Received: 13 April 2019;  Published: 25 June 2019;  doi: 10.21926/obm.icm.1902039

Acute exercise may enhance episodic memory recall, or the retrospective recall of an event or episode due to exercise-induced neuronal excitability and ensuing long-term potentiation. Of interest to this paper is the potential effects of acute exercise on memory interference, when the interfering stimuli occurs at the same time as the target stimuli. A three-arm, parallel-group randomized controlled intervention was employed. Participants (N=50) were randomized into one of three groups, including 1) Interference + [...]

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 Balamurugan Sivaprakasam  and Prasanna Sadagopan

Received: 24 December 2023;  Published: 14 June 2024;  doi: 10.21926/obm.genet.2402243

The present study introduces Snips2HLA-HsG, an integrated application designed for SNP genotype analysis and HLA allele type prediction. Leveraging attribute bagging, a powerful ensemble classifier technique from the Bioconductor HIBAG package, Snips2HLA-HsG offers a comprehensive response for genetic analysis. Accessible via https://snips2hla.shinyapps.io/hla_home/, the application distinguishes itself by prioritizing user-friendliness and integrating all-purpose functionalities, including sample preparation, mode [...]

by Shih-Ang Hsu

Received: 13 December 2020;  Published: 06 July 2021;  doi: 10.21926/jept.2103031

In September 2020 Hurricane Sally affected the north central Gulf of Mexico. Making use of the anemometers data available at 4 oil rigs over the affected region, it is found that, when the atmospheric stability was near-neutral, the gust factor (G) decreases linearly with height from approximately 1.28 at 35m above the sea surface to 1.18 at 160 m. In other words, G decreases linearly at the rate around 8% per 100 m from the typical hub height to beyond common hub height. Based on the linear equation found in this [...]

by Buti Obaid Saeed Alfalahi  , Imane Lamdjad  , Mustafa Alnujaifi  , Noaman Atallah Alheety  and Abdul Qayyum

Received: 05 February 2024;  Published: 12 June 2024;  doi: 10.21926/obm.genet.2402242

Understanding the impact of melatonin (N-acetyl-5-methoxytryptamine) on plant gene expression is crucial for unlocking its full potential as a tool for crop improvement and stress tolerance. Melatonin has emerged to have several influences on the transcriptional activity of numerous genes, helping to orchestrate plant responses to environmental cues. Furthermore, it has been shown that melatonin signaling pathways control downstream gene expression to ensure proper plant growth and development. Therefore, clearing [...]

by Michel Z. Fidelis  , Elaine Trojan de Paula  , Eduardo Abreu  , Maria E.K. Fuziki  , Onelia A. A. dos Santos  , Rodrigo Brackmann  and Giane G. Lenzi

Received: 18 September 2023;  Published: 22 September 2023;  doi: 10.21926/cr.2303023

Due to its similar characteristics to titanium, niobium has become an attractive alternative in photocatalytic processes. Research indicates that titania has an optimal percentage of phases resulting in a commercial catalyst, P25, that contains more than 70% anatase with a minor amount of rutile and a small amount of amorphous phase. On the other hand, for Nb2O5, percentage optimization was little explored in the literature, which consists of studying the phases obtained via heat treatment individually and in diffe [...]