by Mamun Mahmud  and Md. Mujahid Hasan

Received: 06 September 2024;  Published: 20 January 2025;  doi: 10.21926/aeer.2501008

The concentration of heavy metals in road dust poses significant risks to human health and the environment. This study investigates the characteristics of road dust, focusing on the contamination level of heavy metals like lead (Pb), iron (Fe), and arsenic (As). Road dust samples were collected from various locations in Khulna city. They went through acid digestion to determine the Pb, Fe, and As levels using ICP-OES, and bioavailable iron was assessed by mixing the dust samples with water. This study found no dete [...]

by Oyovwi Mega Obukohwo  , Peggy Ejiro Ohwin  , Rotu Arientare Rume  , Olowe Gideon Temitope  , Oyelere Abosede Oreoluwa  and Adelowo Joy Motunrayo

Received: 19 February 2024;  Published: 05 July 2024;  doi: 10.21926/obm.genet.2403249

Chromosome abnormalities are a leading cause of pregnancy loss, developmental delays, and birth defects. These abnormalities arise from errors in chromosome structure (breakage) or number (missegregation) during cell division. Understanding the causes of these errors is crucial for developing effective preventive strategies to improve reproductive health. This paper aims to review the known causes of chromosome breakage and mis-segregation, emphasizing their impact on pregnancy and newborn health. It further explor [...]

by Chen-Wei Yang  , Min-Ze Lu  , Wei-Ming Ma  and Chang-Ming Liaw

Received: 23 December 2020;  Published: 07 April 2021;  doi: 10.21926/jept.2102016

This paper presents a three-phase full-bridge boost switch-mode rectifier (SMR) fed switched-reluctance motor (SRM) drive with energy storage buffer. First, the power circuits and control schemes of the two power stages are properly designed. Except for having good line drawn power quality, the boostable DC-link voltage of the SRM drive can enhance the SRM driving performance in wide speed range. And the recovered regenerative braking energy can be sent back to the grid successfully. Then, a battery storage system [...]

by Mason L. Yeh  and Eric S. Levine

Received: 11 April 2017;  Published: 27 April 2017;  doi: 10.21926/obm.neurobiol.1702005

Autism spectrum disorders (ASDs) are diagnosed on the basis of three behavioral features, namely, (1) deficits in social communication, (2) absence or delay in language and (3) stereotypy. The consensus regarding the neurological pathogenesis of ASDs is aberrant synaptogenesis and synapse function. Further, it is now widely accepted that ASD is neurodevelopmental in nature, placing emphasis on derangements occurring at the level of intra- and intercellular signaling during corticogenesis. At present, there is an ev [...]

by Jacques De Reuck  , Florent Auger  , Nicolas Durieux  , Claude-Alain Maurage  , Vincent Deramecourt  , Charlotte Cordonnier  , Florence Pasquier  , Didier Leys  and Regis Bordet

Received: 06 April 2020;  Published: 04 June 2020;  doi: 10.21926/obm.geriatr.2002122

Regional brain atrophy and an escalation in vascular risk are associated to increasing age in normal cognitive healthy persons. The present post-mortem study compares the incidence of cerebrovascular lesions between young-aged, middle-aged, and elderly cognitive normal persons with additional 7.0-tesla MRI). The patients consisted of 10 young adults, 20 middle-aged adults, and 14 elderly ones. In addition to the macroscopic visible cerebrovascular lesions, a whole coronal section of a cerebral hemisphere was taken [...]

by Anthony L. Dellinger  , Lowell Hughes  , Lesma Griffith  , Terry E. Brady  , Abed Alqader Ibrahim  and Melinda K. M. Goddard

Received: 19 July 2024;  Published: 13 November 2024;  doi: 10.21926/rpn.2404018

Recent advances in obesity management reflect the integration of pharmacological, surgical, and behavioral interventions, yet sustainable long-term outcomes remain elusive due to high attrition rates, the complexity of protocol compliance – and for some, costs, risks, and serious side effects. This research combined a patented nutraceutical designed to naturally stimulate serotonin, a biologic hunger agonist, to thereby aid in appetite control and facilitate weight loss through ‘Targeted Eating,’ a single, unrestri [...]

by Gerhard Litscher

Received: 07 November 2017;  Published: 10 November 2017;  doi: 10.21926/obm.icm.1704004

The treatment by auricular therapy has a long history. Ear acupoint research has been advancing step by step worldwide [1-17] . The introduction of lasers into medicine brought besides the already existing stimulation with needles, electricity, pressure and liquids an additional technique to auricular acupuncture.

by Christopher Wilson  , Anthenius Versluis  , Daranee Tantbirojn  and Martha Wells

Received: 10 February 2021;  Published: 28 May 2021;  doi: 10.21926/rpm.2102020

Prefabricated zirconia crowns (ZRCs) require a passive fit and more reduction than stainless steel crowns (SSC). To determine the mean and maximum reduction depths in the mesial-buccal and occlusal areas for three ZRC brands and one SSC in posterior primary typodont molars and to compare reduction depths to existing literature to determine the preparation’s proximity to pulpal tissue. Four primary maxillary and mandibular typodont teeth (J and S) were prepared according to the manufacturers’ guidelines for three ZR [...]

by Stephanie H Gomez  , Josephine Ridley  and Silvia C Hernandez

Received: 19 January 2021;  Published: 24 December 2021;  doi: 10.21926/obm.neurobiol.2104112

COVID-19 infections, hospitalizations, and deaths continue to skyrocket across the world, leaving a trail of enduring psychological turmoil. It wreaks havoc on the physical, emotional, and cognitive health of those directly infected, as well as caretakers, friends, and families. Though the pandemic has at least indirectly impacted most people, older adults appear to be the most vulnerable to COVID-19-related deaths and little is known about the psychological consequences. Unfortunately, many of the precautions take [...]

by Julia M. Robertson  and Barbara E. Kingsley

Received: 16 February 2020;  Published: 23 June 2020;  doi: 10.21926/obm.geriatr.2002124

The ability to situate individuals within social categories provides an important social function, allowing people to navigate problems of survival and reproduction within highly complex social structures. This categorization of people with apparently shared characteristics is facilitated by various cues, one of the most important being facial information. There has been a wealth of literature that reports on perceptions of characteristics informed by faciometrics (or the measurement of facial features and associat [...]