by Ken Sato  , Atsushi Naganuma  , Shuichi Saito  , Yuichi Yamazaki  , Takeshi Kobayashi  , Hiroki Tojima  , Norio Horiguchi  , Satoru Kakizaki  , Toshio Uraoka  , Hiroshi Ohnishi  and Hiroaki Okamoto

Received: 29 September 2019;  Published: 17 December 2019;  doi: 10.21926/obm.hg.1904041

Background: Daclatasvir/asunaprevir/beclabuvir (DCV/ASV/BCV) combination therapy had been available for the treatment of chronic hepatitis C patients with genotype 1 (CHG1) in Japan. Our aim was to report the efficacy and safety of DCV/ASV/BCV in patients experiencing treatment failure with interferon (IFN)-free direct-acting antiviral agent (DAA)-based therapies, which have not been fully evaluated. Methods: We evaluated the efficacy and safety of 12-week DCV/ASV/BCV combination therapy for CHG1 patients experien [...]

by Marcel Mannens

Received: 24 April 2019;  Published: 30 April 2019;  doi: 10.21926/obm.genet.1902075

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by Christopher Igwe Idumah  , Ifeanyi Emmanuel Okoye  and Chioma Joan Ikebudu

Received: 05 September 2024;  Published: 02 February 2025;  doi: 10.21926/rpm.2501005

3-Dimension printing (3-DPT) or additive manufacturing (AM) technology has been utilized for a while in the construction of customized 3-D objects utilizing computer software such as computer-aided design (CAD). However, the emergence of an innovative and new four-dimensional printing (4-DPT) has enabled the synergy of AM technology with programmable materials in transforming digital processes virtually into physical entities, thereby providing innovation and advanced functionalities. 4-DPT is a procedure facilitat [...]

by Zakhar Slukovskii  and Tatiana Shelekhova

Received: 09 March 2023;  Published: 05 July 2023;  doi: 10.21926/aeer.2303038

Core sediment (sapropel) samples were collected from Lake Okunozero, the Republic of Karelia, Russia, to assess the distribution of heavy metals and their main fractions, probable sources of pollution, and potential ecological and toxicological risks for the water body. Heavy metal concentrations were measured by the mass spectrometry method using an XSeries-2 ICP-MS. The sequential extraction of heavy metals from sapropel samples was performed using the scheme of Tessier. According to the Russian Interstate Standa [...]

by Robert Beringer  , Paneet Gill  , Gloria Gutman  and Brian de Vries

Received: 31 July 2022;  Published: 17 November 2022;  doi: 10.21926/obm.geriatr.2204213

Disasters such as the COVID-19 pandemic exact a toll on vulnerable populations in terms of morbidity and mortality, but they also provide opportunities for personal growth and development and demonstration of personal and collective resiliency. This inductive thematic analysis explores self-perceived negative and positive impacts of the COVID-19 pandemic on 2994 Canadians aged 55+. Data derive from response to two open-ended questions included in a national online survey (View Survey (sfu.ca)) conducted between Aug [...]

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 Domenic John DiPietro  and Maria Gabriela Bidart

Received: 02 March 2023;  Published: 28 September 2023;  doi: 10.21926/obm.icm.2303039

Worldwide, human population growth has led to a higher demand for urbanization. While this development is in accordance with our gregarious lifestyles, our availability and contact with nature has consequentially been minimized. The goal of this study was to evaluate whether sounds from nature versus urban environments affect vital signs (i.e., heart rate and respiration rate) and mood states of female college students. Emotional states were assessed using the Positive and Negative Affect Schedule (PANAS) questionn [...]

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 A. Guillermo Bracamonte

Received: 16 September 2023;  Published: 26 December 2023;  doi: 10.21926/rpm.2304037

This review intended to resume key Research reports and publications that open many themes and topics related to Carbon-based semiconductors and Quantum emitters. The Design and synthesis of highly pure materials such as Graphene, Carbon Nanotubes, fullerenes, and other Carbon-based allotropes were shown. They presented their most important and promising properties concerning new studies and developments in photonics. Carbon-based Quantum dots, semiconductors, and higher sized Nanoplatforms allowed us to discuss fu [...]

by Hidehiro Kamezaki  , Tatsuo Kanda  , Osamu Yokosuka  , Yasunori Kasahara  and Takayuki Sakurai

Received: 16 November 2016;  Published: 21 January 2017;  doi: 10.21926/obm.hg.1701001

(1) Background: Preventative treatment for Pneumocystis jirovecii pneumonia (PCP) has been recommended for patients receiving ≥20 mg/day prednisolone. We describe a patient who developed PCP while receiving a dose of 15 mg/day prednisolone, and consider criteria for the initiation of preventative therapy for PCP in patients with autoimmune hepatitis (AIH) treated with prednisolone. (2) Case Report: A 71-year-old woman initially possessed dark-colored urine, white stool, and decreased appetite, which indicated hepat [...]

by Nadia A. Abdelmegeed Abdelwahed  and Muhammad Sufyan Ramish

Received: 18 December 2024;  Published: 26 May 2025;  doi: 10.21926/obm.neurobiol.2502288

The present study investigates the association between anger, stress, psychological distress and mood disorders among Egyptian entrepreneurs. Approach-wise, the study is quantitative, and its cross-sectional data were collected using a questionnaire. The study’s respondents are Egyptian entrepreneurs involved in several business activities. Hence, the study concluded based on 286 valid responses. We used analysis of moment structures (AMOS) software, where we conducted path analysis to conclude the results. C [...]

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 Omotayo B. Ilesanmi  , Rosephine Enadeghe  , Chinenyenwa U. Aleneme  , Esther F. Adeogun  and Ufuoma J. Okotie

Received: 29 May 2022;  Published: 26 September 2022;  doi: 10.21926/obm.neurobiol.2203135

Cadmium (Cd) is a heavy metal that is deleterious to brain development as it increases brain aging. Trévo is a multi-herbal supplement that provides various health benefits, including boosting the immune system and detoxification. In this study, we investigated the neuroprotective effects of Trévo against the neurotoxic effects of cadmium chloride (CdCl2). Thirty male Wistar rats were equally divided into three groups: Group I (normal control), Group II (administered CdCl2), and Group III (administered Trévo and Cd [...]

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 Xiaofei Qin  , Yongren Feng  , Lejun Wu  , Zhongjian Tan  , Yanmin Zhou  and Wilson Chin

Received: 12 April 2023;  Published: 10 July 2023;  doi: 10.21926/jept.2303023

In conventional wireline and LWD/MWD formation testing, downhole predictions for rock and fluid properties are based on simplified Darcy flow models, but only for mathematical expediency. These require initially constant pressures that are uniform throughout the reservoir. This limitation precludes common applications in overbalanced drilling, so that supercharge or near-well invasion effects - associated with rapidly decreasing pressures at the sandface where pressures are measured - are completely ignored. Such 1 [...]

by Loree Cook-Daniels

Received: 16 July 2023;  Published: 15 January 2024;  doi: 10.21926/obm.geriatr.2401266

Lesbian, gay, bisexual, transgender, and queer (LGBTQ+) elders are vulnerable to both the “usual” types of elder abuse (physical, sexual, emotional, and financial abuse, along with neglect), and with abuse that is specific to the context and history of LGBTQ+ elders. Training for adult protective services, long-term care ombudsmen, and other professionals who work with abused elders therefore should include information and skill-building in responding to this population. Research into effective training about LGBTQ [...]

by Anna A. Pendina  , Mikhail I. Krapivin  , Irina D. Mekina  , Irina V. Aleksandrova  , Yanina M. Sagurova  , Evgeniia M. Komarova  , Mariia A. Ishchuk  , Andrei V. Tikhonov  , Olesya N. Bespalova  , Alexander M. Gzgzyan  , Igor Yu. Kogan  and Olga A. Efimova

Received: 13 May 2022;  Published: 23 September 2022;  doi: 10.21926/obm.genet.2203164

This paper suggests an approach for the use of a single paucicellular histological sample to investigate two characteristics indicative of the cell’s functional potential: 1) the content of telomerase reverse transcriptase (TERT) and 2) the telomere length. An algorithm has been suggested for the successive detection of the catalytic telomerase subunit with immunohistochemical staining and assessment of telomere length with Q-FISH on the same set of cells. The described approach uses three incontestable advantages [...]

by Maria Gladysheva-Azgari  , Natalia Slobodova  , Eugenia Boulygina  , Svetlana Tsygankova  , Fedor Sharko  and Irina Mitrofanova

Received: 16 October 2023;  Published: 24 November 2023;  doi: 10.21926/obm.genet.2304203

In this study, we report the complete chloroplast genome of Actinidia arguta var. purpurea. The chloroplast genome is 157,369 bp long as the circular (GC ratio is 37.22%). It has four subregions: a large single-copy (LSC) region of 88,609 bp, a small single-copy (SSC) region of 20,470 bp, and two inverted repeat regions (IRs) of 24,145 bp in each. The chloroplast genome of A. arguta var. purpurea contains a total of 113 unique genes, which are 79 protein-coding genes, 4 rRNA genes, and 3 [...]

by Emad Fadhal

Received: 18 January 2024;  Published: 24 May 2024;  doi: 10.21926/obm.genet.2402236

The RAS signaling pathway is a crucial cell transduction pathway central to transmitting signals from outside the cell to the cell nucleus and influencing fundamental biological mechanisms like cell growth, division, and specialization. This signaling pathway has recently received much attention in scientific research because of its involvement in various diseases, especially carcinogenesis. Our study identified the significance of crucial proteins in the RAS signaling cascade in cancer development and progression. [...]

by Abdulmalik A. Lawan  and Nadire Cavus

Received: 31 May 2022;  Published: 30 September 2022;  doi: 10.21926/obm.neurobiol.2203138

Autism spectrum disorder (ASD) is a neuropsychiatric disorder associated with critical challenges related to social, communication, and behavioral issues. Recent studies have proposed machine learning (ML) techniques for rapid and accurate assessment of ASD. However, the mismatch between the ML techniques and the clinical basis of ASD assessment reduces the effectiveness of ML-based assessment tools. The present study proposed an approach that utilized the potential of ML modeling and preserved the clinical relevan [...]

by Hermann Moisl

Received: 28 August 2022;  Published: 01 February 2023;  doi: 10.21926/obm.neurobiol.2301152

Moisl [1, 2] proposed a model of how the brain implements intrinsic intentionality with respect to lexical and sentence meaning, where 'intrinsic' is understood as 'independent of interpretation by observers external to the cognitive agent'. The discussion in both was mainly philosophical and qualitative; the present paper gives a mathematical account of the distance structure preservation that underlies the proposed mechanism of intrinsic intentionality. The three-layer autoassociative multilayer perceptron (aMLP) [...]

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 Andrey Nasledov  , Sergey Miroshnikov  , Liubov Tkacheva  and Sergey Fedorov

Received: 08 June 2023;  Published: 19 October 2023;  doi: 10.21926/obm.neurobiol.2304190

The study aims to reveal autism vectors that are inherent in 3-4-year-olds with ASD. Three hundred eighty-three children with ASD took part in the research. An online questionnaire developed earlier by our research group was used. In the first stage, with the repeated use of exploratory factor analysis, the task of identifying the simplest factor structure was solved. As a result, a 7-factor system was obtained, including from 9 to 14 items in each factor (78 items in total): 1) "Persistence on sameness" (Sam); 2) [...]

by Renata Martins Pacheco

Received: 09 September 2022;  Published: 15 December 2022;  doi: 10.21926/aeer.2204051

Climate change is one of the main challenges of the current century. Emissions taxes are one of the proposed ways to help in addressing this issue. In this sense, Portugal has introduced an Addition Tax on Carbon Emissions through Law N. 82-D/2014. One of the most notorious impacts of climate change in the country is the wildfires increasing in frequency and intensity. Forests provide various ecosystem services not valued by traditional markets, such as carbon sequestration. Recently, Portugal has created new envir [...]

by Sofie Amalie Andersson  , Mathias Møller Thygesen  , Anita Dittrich  and Henrik Lauridsen

Received: 07 March 2022;  Published: 06 July 2022;  doi: 10.21926/obm.neurobiol.2203127

The Mexican axolotl salamander is an important model species in regenerative medical research and experiments involving this species often require anesthesia which is usually limited to the duration of the surgical procedure or other interventions, usually lasting no more than a few hours. This study aimed to examine the potential for increasing the duration of anesthesia by continued propofol infusion for a week. Neurobehavioral changes in response to prolonged anesthesia were evaluated after two and seven days of [...]

by Priya R. Bhosale  , Oliver H. Wang  and Jeannelyn S. Estrella

Received: 08 July 2019;  Published: 28 October 2019;  doi: 10.21926/obm.hg.1904038

Background: Pure pancreatic-type ACC outside the pancreas is extremely rare. Methods: We presented a very rare case of primary ACC of the pancreatic-type involving jejunum with a synchronous metastasis to left adrenal gland arising in well-developed ectopic pancreas which had fully developed pancreatic acini, islets of Langerhans, ductal structures, pancreatic cancer precursor lesions and a well-formed minor papilla that opens to the mucosal surface of jejunum. We also reviewed all 21 cases of pure pancreatic-type [...]

by Adrian Krzysztof Antosik  , Karolina Mozelewska  and Marcin Bartkowiak

Received: 29 February 2024;  Published: 13 May 2024;  doi: 10.21926/jept.2402012

The investigation aimed to delve into the intricate relationship between the presence of titanium dioxide and the resulting alterations in the adhesive's behavior under different conditions. The focus extended beyond mere observation to understand how these additives interact with the adhesive matrix, potentially imparting beneficial attributes. Notably, the study delved into the optimization of thermal stability, the extension of the adhesive's functional lifespan, and the mitigation of shrinkage tendencies. This [...]

by William Winlow  , Rouholah Fatemi  and Andrew S. Johnson

Received: 13 April 2023;  Published: 27 August 2023;  doi: 10.21926/obm.neurobiol.2303181

This review was constructed to show how the connectome has evolved in motor command systems from simple command elements to complex systems of neurons utilizing parallel distributed processing and the possibility of quantum entanglement between groups of neurons. Scientific and medical interest in neural pathways and their connections have driven neuroscience and brain research for many decades so that specific systems and their feedback loops have been considered in detail. We review motor command systems in inver [...]

by Dennis Gibson  , Amy Stein  , Marina Foster  and Philip S Mehler

Received: 19 December 2024;  Published: 23 May 2025;  doi: 10.21926/rpn.2502012

Inpatient care is a significant contributor to the health-care costs associated with the treatment of individuals with eating disorders (EDs). This study seeks to better understand the treatment outcomes of individuals with extreme EDs requiring inpatient medical stabilization at specialized medical versus nonspecialized medical units. Patients transferred via air ambulance to ACUTE Center for Eating Disorders and Severe Malnutrition (specialized care) from an outside hospital (nonspecialized care) between January [...]

by Koorosh Goudarzi  and Mohammad Reza Zare

Received: 19 April 2022;  Published: 08 June 2022;  doi: 10.21926/jept.2202020

Passenger and commercial internal combustion engines have relatively large dissipated thermal energy sources that can be used for initiating thermodynamic refrigeration cycles at low temperatures while improving engine efficiency. Researchers have focused on combined power-refrigeration cycles in past studies. This paper presents the operation and performance of a new combined refrigeration system driven by waste heat recovery within the internal combustion engines. For this purpose, the effects of several paramete [...]

by Yashiro Rojas  , Evana Halaka  , Mary Hanna  , Alex Sidotu  , Jehan Joma  , Mina Mikhael  , Roger A. Lalancette  and Ivan Bernal

Received: 26 July 2020;  Published: 07 September 2020;  doi: 10.21926/acr.2003008

The compound, [cis-dichloro-(tris-2-amino(ethylamine))cobalt(III)]chloride hydrate, [cis-Cl2-(tren)Co(III)Cl]·H2O, a conglomerate crystallizing in P21 with Z = 4 (Z’ = 2), has been used as a precursor in the synthesis of a new dicobalt(III) peroxo complex: [(μ2-hydroxo)(μ2-peroxo)bis(tris-2-amino(ethylamine))di-cobalt(III)] tris(triiodide) dihydrate. This material crystallizes, without disorder, in space group P212121 with Z = 4 (Z’ = 2), thus making it, unambiguously, an example of a conglomerate. Its cell constan [...]

by Angela Cheng  , Xanthe Lea  and Alice Shires

Received: 13 March 2025;  Published: 23 June 2025;  doi: 10.21926/obm.icm.2502026

This study aims to investigate the barriers and facilitators to meditation in the general population. This research is significant because understanding these factors can inform the design of more effective public mental health interventions and support the integration of meditation into daily life. A qualitative thematic analysis was conducted on the qualitative component of wider survey responses. Participants were recruited from MeditationHQ, which offers weekly group meditation sessions on beaches around Austra [...]

by OBM Transplantation Editorial Office

Received: 16 May 2022;  Published: 18 May 2022;  doi: 10.21926/obm.transplant.2202159

InterviewAn Interview with Prof. Peter SchemmerOBM Transplantation Editorial OfficeLIDSEN Publishing Inc., 2000 Auburn Drive, One Chagrin Highlands, Suite 200, Beachwood, OH, USA; E-Mail: transplantation@lidsen.com OBM Transplantation2022, volume 6, issue 2doi:10.21926/obm.transplant.2202159Received: May 16, 2022Accepted: May 17, 2022Published: May 18, 2022

by Vikas Dhikav  , Pankaj Kumar  and Praveen Kumar Anand

Received: 23 August 2022;  Published: 23 November 2022;  doi: 10.21926/obm.geriatr.2204214

Various grades of cognitive impairment generally occur in older adults over the age of 55, where cardiovascular risk factors such as diabetes and/or hypertension, coronary artery disease, or cerebrovascular accidents are also common. Cognitive impairment occurs in various forms, from mild or amnesia such as forgetting today's date to more ominous and progressive forms, such as frank dementia. Over 5 million people worldwide suffer from dementia, most of whom live in low- and middle-income countries. It has been env [...]

by Dmitriy Melkonian  , Anthony Korner  , Russell Meares  and Anthony Harris

Received: 09 April 2023;  Published: 13 July 2023;  doi: 10.21926/obm.neurobiol.2303174

Traditional approaches to EEG modelling use the methods of classical physics to reconstruct scalp potentials in terms of explicit physical models of cortical neuron ensembles. The principal difficulty with such approaches is that the multiplicity of cellular processes, with an intricate array of deterministic and random influencing factors, prevents the creation of consistent biophysical parameter sets. An original, empirically testable solution has been achieved in our previous studies by a radical departure from [...]

by Georgia Savvidou  , Spyratou Ellas  and Efstathios P Efstathopoulos

Received: 23 April 2024;  Published: 29 August 2024;  doi: 10.21926/rpm.2403022

Nanotechnology is one of the most promising fields of study, and it represents a pioneering leap in science and technology by the precise control over materials at the atomic and molecular level. This transformation affects numerous aspects of modern human life, including medicine, healthcare, electronics, computing, and energy storage. Nanotechnology has shown significant advancements in managing various health problems through different nano-formulations. These engineered nano-systems can be used as drug delivery [...]

by Samhani Ismail  , Muhammad Hakimi Mohd Nashron  , Mohd Hanifah Jusoh  and Abdul Nawfar Sadagatullah

Received: 26 February 2025;  Published: 05 August 2025;  doi: 10.21926/obm.neurobiol.2503296

Chronic pain involves complex cortical and subcortical changes, suggesting that brain electrical activity may be a potential biomarker for nociceptive processing. Pain leaves its signature in the brain's oscillatory patterns, yet limited studies have explored the neurophysiological alterations associated with chronic pain. This review examines the pain detection method currently used in clinical settings, the potential of neurophysiological features to become brain oscillatory brain biomarkers, and their use in fut [...]

by Mahdi Yousefi  , Scott Donne  , Shabnam Bahremand Abrasi  and Mohammad Yousefi

Received: 10 April 2023;  Published: 13 September 2023;  doi: 10.21926/jept.2303028

The thermal cracking of methane (TMC) is a significant reaction occurring above 850°C, which proceeds in two stages: non-isothermally and isothermally. However, most existing studies have focused on obtaining reaction rates under isothermal conditions [1], limiting their applicability to practical industrial reactor conditions. This novel research aims to determine the overall thermal decomposition rate of methane to hydrogen and carbon in adiabatic conditions, covering the range of unstable industrial reactor temp [...]

by Sofia Oliveira Correia  , Catarina Eusébio  , Ana Sofia Cipriano  , Virginia Lopes  , José Ramón Vizcaíno  , António Cabrita  , Manuela Almeida  , Sofia Pedroso  , Leonidio Dias  , La Salete Martins  and António Castro Henriques

Received: 18 October 2018;  Published: 07 March 2019;  doi: 10.21926/obm.transplant.1901057

Mucormycosis is an angioinvasive and potentially fatal fungal infection caused by ubiquitous filamentous fungi. Cutaneous mucormycosis is an emerging infection and potentially lethal. Our aim was to review the literature on cutaneous mucormycosis. We present a case of a renal transplant patient with a surgical wound infection 20 days after kidney transplant. This case is an example on how early diagnosis is crucial and, since culture is less sensitive, microscopic evaluation of the characteristic broad hyphae is th [...]

by Wei Wang  , Sa Bi  , Huanhuan Li  and Tiesheng Li

Received: 21 September 2022;  Published: 02 December 2022;  doi: 10.21926/cr.2204042

Fabrication, arrangement, and controllable composition of ordered organometallic films are critical for designing a highly active catalyst and investigating the catalytic mechanism. In this paper, an organometallic terpyridine Pd(II)/Ni(II) monolayer linked on the silicon substrate surface (denoted as Si-Tpy-Pd1/Ni1) was prepared and characterized using water contact angle, ultraviolet spectra, X-ray diffraction, scanning electron microscopy, and X-ray photoelectron microscopy. Si-Tpy-Pd1/Ni1 exhibited high catalyt [...]

by Ellen Kuo  , Esther Belogolovsky  , Sarah Fracci  , Amy Wozniak  , Marina Feffer  , Rachel Klauber  , Theodote K. Pontikes  and Edwin Meresh

Received: 03 October 2022;  Published: 02 March 2023;  doi: 10.21926/obm.neurobiol.2301159

The Coronavirus Disease (COVID-19) pandemic has contributed to a co-occurring psychiatric epidemic. Children and adolescents have been particularly impacted, with disruptions in continuity of learning and healthcare. Psychological stressors such as fear of infection, boredom, decreased socialization, supply shortages, and incomplete information have contributed to low mood, irritability, insomnia, and emotional exhaustion. Our study contributes to this research by quantifying the devastating psychiatric toll that t [...]

by S.Amitha Banu  and Khan Sharun

Received: 25 May 2023;  Published: 02 June 2023;  doi: 10.21926/obm.transplant.2302187

Platelet-rich plasma (PRP) is a promising tool in regenerative medicine because it stimulates tissue repair and regeneration. PRP contains a high concentration of platelets, growth factors, and cytokines involved in the healing process. This editorial paper aims to give an overview of PRP in regenerative medicine and its potential applications in various medical fields such as orthopedics, dentistry, dermatology, and wound healing. PRP can be integrated with other regenerative therapies, such as stem cell and gene [...]

by Brian D. Barkdoll

Received: 26 May 2023;  Published: 21 November 2023;  doi: 10.21926/jept.2304037

Global climate change has necessitated the reduction of GHG emissions. Water distribution system (WDS) pumping adds to these emissions and, therefore, should be reduced. Under electricity hourly cost tariffs, utilities are incentivized to pump during the nighttime hours. This can have a deleterious effect, however, on GHG emissions. To quantify this effect, a modeling study of twelve real WDSs was performed with an electricity tariff. The systems all had the typical tank-level-based pump controls but also time-base [...]

by Galina Huseynova  , Nushaba Aliyeva  and Gular Gasimova

Received: 20 April 2023;  Published: 10 August 2023;  doi: 10.21926/cr.2303021

In the oil distillate fraction alkylation process, a modified Zr zeolite ZSM-5 was obtained and studied. The modification was executed using a method that impregnated ZSM-5 with a 5% solution of ZrOCl2∙6H2O. X-ray diffraction studies were conducted on zeolite ZSM-5, zirconyl chloride modifier ZrOCl2∙6H2O, and modified zeolite ZSM-5-ZrO2, which was calcined at temperatures of 200, 400, and 550°C. The results revealed that the phase composition of modified ZSM-5-ZrO2 zeolite samples varied depending on the calcinatio [...]

by G.-Fivos Sargentis  , Romanos Ioannidis  , Panayiotis Dimitriadis  , Nikolaos Malamos  , Olga Lyra  , Olga Kitsou  , Matina Kougkia  , Nikos Mamassis  and Demetris Koutsoyiannis

Received: 28 August 2024;  Published: 05 December 2024;  doi: 10.21926/aeer.2404025

The modern globalized civilization is sustained by interactions, trade, the transportation of goods, and energy. Energy self-sufficiency is crucial in rural and disaster-prone areas like North Euboea because dependence on external energy supplies can leave regions vulnerable to supply chain disruptions, price volatility, and geopolitical risks. In such isolated regions, energy independence ensures resilience in natural disasters and economic instability. The alternative to self-sufficiency often involves reliance o [...]

by Hazal Turasan  , Tahrima B. Rouf  , Tuncay Yilmaz  and Jozef L. Kokini

Received: 26 October 2022;  Published: 12 June 2023;  doi: 10.21926/rpm.2302023

Nanomaterials are now used in almost every field of science; as conductors and electrodes in electronics, as nanodelivery systems in health screenings and drug delivery, as nanofibrils in filtering and textile industry, as nanoparticles in biosensor fabrication for toxin and pathogen detection, and in packaging materials in the food industry. Synthetic materials and plastics accumulate in the environment causing increasing health concerns for their use in food and pharmaceutical products. Therefore, researchers now [...]

by Matthieu Tshanga  , Faidance Mashauri  and Pierre Mashala

Received: 19 September 2024;  Published: 16 April 2025;  doi: 10.21926/aeer.2502019

This study examines the hydrochemical characteristics of groundwater in the Mutoshi mining environment in Kolwezi, Democratic Republic of Congo, addressing gaps in understanding the impact of mining on water quality. Despite the DRC's vast water resources, only 26% of the urban population has access to safe drinking water, with the Mutoshi aquifer, providing over a quarter of Kolwezi's drinking water, facing deterioration due to underlying copper and cobalt-rich geological formations. Groundwater and geological sam [...]

by Ya Wen

Received: 28 November 2017;  Published: 05 December 2017;  doi: 10.21926/obm.neurobiol.1704007

More and more studies revealed links amongst neurological disorders, heart diseases and cancers. For example, people with subclinical cardiovascular diseases are at higher risk for Alzheimer's disease, Parkinson’s disease is associated with varied risk of cancer, Autism Spectrum Disorders and cancer have overlapping genes and molecular pathways, heart disease and cancer share common risk factors, etc. It is intriguing how are these conditions that appear to be completely different linked together.

by Aart Heesterman

Received: 29 November 2021;  Published: 28 November 2022;  doi: 10.21926/aeer.2204046

Around 1600 AD the carbon dioxide content of the earth’s atmosphere started to rise, even whilst according to the Milankovitch [1] astronomical theory of climate variation it was due to fall. On the natural earth the carbon dioxide count of the atmosphere is a delayed response and an enhancing feedback on the basic cause of the Milankovitch astronomical cycle, the intensity of the June sunshine. If the Milankovitch cycle had continued its natural course, the medevial cold period known as the little ice age. Human i [...]

by OBM Genetics Editorial Office

Received: 09 January 2023;  Published: 10 January 2023;  doi: 10.21926/obm.genet.2301176

An Interview with Dr. Yuri Shavrukov