by Miguel Angulo  and Mª Carmen Márquez

Received: 30 December 2022;  Published: 16 February 2023;  doi: 10.21926/cr.2301008

This work demonstrates the possibility of implementing a technology that allows profitable value to be drawn from the meat waste from retail stores. Protein hydrolysate, collagen and fatty acids were recovered from meat waste through enzymatic hydrolysis using a mixture of enzymes: a protease (Alcalase) and a lipase (Resinase). Enzymatic hydrolysis was studied by response surface methodology (RMS). Four independent variables were used to study the response variables. The analysis showed that all factors including p [...]

by Sadeq Hamood Saleh Azzam  , Amreen Khanum  and Mohamed Afzal Pasha

Received: 30 September 2022;  Published: 15 February 2023;  doi: 10.21926/cr.2301007

2-Phenyl-4-arylmethylidene-5-oxazolinones were synthesized in very high yield by subjecting a mixture of an aryl aldehyde/heterocyclic aldehyde/cinnamaldehyde and hippuric acid in anhydrous acetic anhydride and catalytic Zn(OCOCH3)2·2H2O to ultrasonication at 35 KHz for 4 to 8 min. This method has many advantages: use of a green catalyst; yields are high, involves easy workup procedure, is energy efficient and economically feasible.

by Kristen McHenry  , Megan Koster  , Gen Ludwig  , Yong Gao  and Jennifer Eichmeyer

Received: 25 October 2022;  Published: 14 February 2023;  doi: 10.21926/obm.icm.2301014

This study aimed to examine and compare the extent of burnout among health science faculty at a higher education institution and their self-reported perception of well-being during the COVID-19 pandemic. The design of the study was cross-sectional, descriptive survey research. An electronic questionnaire was developed to measure the constructs of burnout and well-being. Validated instruments used in the survey included the Oldenburg Burnout Inventory (OLBI) and the World Health Organization-5 Well-being Index. The [...]

by Aini Hidayati Shahrir  and Gasim Hayder

Received: 27 October 2022;  Published: 14 February 2023;  doi: 10.21926/aeer.2301020

The pandemic has shown its effect on the world regarding health, economy, society, and environment. Whether it is a negative or positive impact, the period of this pandemic has a vast open platform for further studies. This review focused on the impact of the COVID-19 pandemic lockdown on water quality. It is hypothesized that due to the reduced amount of anthropogenic activity due to the global lockdown, the water quality of water resources increased and rejuvenated. This review showed the study period, methods an [...]

by Roy G Beran

Received: 30 November 2022;  Published: 13 February 2023;  doi: 10.21926/obm.geriatr.2301223

This paper reviews the relationship between RBD and PD and the pathophysiology. Most RBD patients develop PD within 14 years. PD pathophysiology is α-synucleinopathy with dopamine degeneration in nigrostriatal pathways. RBD pathology is poorly understood. Anomalies suggest RBD and PD are different, evidenced by smoking. RBD and PD are associated with glucocerebrosidase gene mutations (GBA gene), suggesting RDB with GBA gene mutation predicts PD. PET imaging, assessing vesicular monoamine transporter 2 (VMAT2), inde [...]

by A. Guillermo Bracamonte

Received: 30 December 2022;  Published: 13 February 2023;  doi: 10.21926/rpm.2301008

In the present work we describe the most important quantum properties of graphene and derivatives recently published. We discuss how these properties were incorporated into varied hybrid materials such as substrates for specific tuning of matter to track varied quantum signals. Their potential applications were analyzed from nanomaterial and nanotechnology. In particular graphene, its derivatives and other carbon-based allotropes were chosen due to their special chemical structure and properties from the nanoscale [...]

by Johannah Ruddy  and Kate Scarlata

Received: 05 August 2022;  Published: 13 February 2023;  doi: 10.21926/rpn.2301003

Celiac disease (CD) is a multisystem immune-mediated disorder resulting in enteropathy of the small intestine with the ingestion of gluten, in genetically susceptible individuals. This condition impact 1% of the population and can result in the development of other conditions such as chronic fatigue, anemia, osteoporosis, aphthous stomatitis, elevated liver enzymes, joint pain, infertility, peripheral neuropathy, and epilepsy. In this review, we outline the clinical presentation of CD, the physiological differences [...]

by Addisu Yeshambel  , Tamiru Alene  , Getachew Asmare  , Gedion Asnake  , Wallilign Anmut  , Kelemu Abebe  and Belete Birhan

Received: 08 December 2022;  Published: 12 February 2023;  doi: 10.21926/obm.neurobiol.2301154

Perinatal loss is the most painful and unanticipated experience for those who conceived and it is a major global concern worldwide, especially in developed countries like Ethiopia. Women who lost their pregnancy are believed to be at higher risk of developing severe grief following a loss. To reduce the risk of complications after perinatal loss, healthcare providers need to appreciate the grieving process and identify grief factors in mothers for early copying and to be managed promptly by providing adequate emoti [...]

by Minghan Bao  , Nagi Abdussamie  and Faisal AlThobiani

Received: 03 December 2022;  Published: 09 February 2023;  doi: 10.21926/jept.2301008

Analysing the structural response of offshore wind turbines (OWTs) requires a robust method to estimate environmental loadings associated with extreme weather conditions. This study aimed to accurately predict wind loadings on a non-rotating OWT using a Computational Fluid Dynamics (CFD) code, Ansys Fluent package. The inlet velocity boundary condition was defined as a uniform inlet wind speed and then as a Normal Wind Profile (NWP). Three large wind speeds of 25 m/s, 40 m/s and 50 m/s were tested with the aid of t [...]

by Elisavet Kouvidi  , Haralambia Tsarouha  , Christina Katsidi  , Sophia Zachaki  , Nikolaos Nitsos  , Sofia Samourgianidi  , Amelia Pantou  , Lazaros Leandros  , Emmanouel Kanavakis  and Ariadni Mavrou

Received: 21 October 2022;  Published: 08 February 2023;  doi: 10.21926/obm.genet.2301178

Chromosomal abnormalities represent a significant genetic cause of male infertility because they impair spermatogenesis. The objective of the current study was to determine the prevalence and distribution of chromosomal abnormalities in Greek men with infertility. Four hundred eighty-eight infertile men (27 azoospermic, 168 with oligospermia -98 mild, 57 moderate, 13 severe- and 293 with normospermia) undergoing In Vitro Fertilization (IVF) between 2016-2022 were enrolled in the study. Thirty-eight fertile men were [...]

by Naireeta Deb  and Rajendra Singh

Received: 15 November 2022;  Published: 08 February 2023;  doi: 10.21926/jept.2301007

Widespread adoption of electric vehicles has presented the challenges of short range and prolonged charging time. Going forward, extremely fast charging is the only solution to these problems. However, the typical Silicon power electronics supported 400 V electric vehicle powertrain cannot live up to this challenge. Limitations include the huge cable size, heating of equipment due to high current and user safety, to name a few. In this paper, we have analyzed an 800 V EV powertrain using power electronics based on [...]

by Katrina McFerran  , Carmen Cheong-Clinch  , Jennifer Bibb  and TanChyuan Chin

Received: 21 November 2022;  Published: 08 February 2023;  doi: 10.21926/obm.icm.2301013

Lockdowns were a central strategy for managing the outbreak of COVID-19, and Melbourne, Australia had some of the most extensive restrictions globally during 2021. As a result, university students were faced with isolated living and challenging learning experiences. This pilot study occurred during 2021, close to both university assignment due dates and end of semester examinations and some of the longest lockdowns. Seventy-one participants responded to recruitment materials describing using music playlists to mana [...]

by Leonardo Vaz Moreira Magalhães  , Anna Silvia Palcheco Peixoto  , Gustavo Garcia Manzato  and Barbara Stolte Bezerra

Received: 30 September 2022;  Published: 07 February 2023;  doi: 10.21926/aeer.2301019

This paper presents a procedure for risk assessment for hydrological disasters considering the threshold rainfall and environmental and social criteria. A case study was carried out to test its feasibility in the northern region of the State of São Paulo, Brazil. The advantage of this procedure is that it only uses data available on government institutions and websites. For this reason, other regions and countries can easily adapt the procedure to their reality. Initially, the hydrological disasters were obtained i [...]

by Bhanuka Maheshwara Sisira Kumara Pahala Ralalage  , Nirmani Kaluarachchi  , Malshani Randunu  , Munshifa Jainulabdeen  , Rohini Nanthakumar  , Sameera Vishwakula  and B. Prasanna Galhena

Received: 01 October 2022;  Published: 06 February 2023;  doi: 10.21926/obm.genet.2301177

Fluorescence In-Situ hybridization (FISH) is a sensitive and highly efficient technique commonly used in routine diagnostics. Most of these tests that use analyte-specific reagents are not approved by US Food and Drug Administration (FDA) but are developed by individual test laboratories. There is an emerging demand for prenatal diagnosis of aneuploidies by FISH. Since most of these assays are laboratory-developed tests, it is essential to validate them prior to their use in diagnosis. However, validation procedure [...]

by Yossi Ehrenreich

Received: 17 May 2022;  Published: 06 February 2023;  doi: 10.21926/obm.icm.2301012

This paper aims to introduce a relatively novel approach for Hypnosis to treat Depersonalization-derealization Disorder (DPRD). Depersonalization is conceptualized as a disrupted interoceptive process disorder. Based on this conceptualization, Hypnotic intervention is tailored to counter the flawed process. It is exemplified by a case of a young man suffering from depersonalization disorder who couldn't bear looking at himself in the mirror. The hypnotic intervention used in this case is then explained by predictiv [...]

by Koorosh Goudarzi  and AliReza R. Taghizadeh

Received: 31 December 2022;  Published: 06 February 2023;  doi: 10.21926/jept.2301006

In this paper, due to the importance of energy recovery from internal combustion engines and the increasing human growing need for power and refrigeration, a two-cycle power and refrigeration system consisting of an organic Rankine cycle and an ejector refrigeration cycle is investigated analytically. The proposed system with the ability to use the ejector as an effective and economical system, can produce simultaneous power and refrigeration by drawing thermal energy from the exhaust gas and engine coolant in the [...]

by John A. T. Bye

Received: 13 November 2022;  Published: 05 February 2023;  doi: 10.21926/aeer.2301018

This paper presents a model for the similarity structure of the velocity profiles in air and water in the wave boundary layer, which provides predictions in terms of two parameters, F and R, of all its important properties, including the Charnock parameter, the surface drift velocity and the condition for the cancellation of the surface Stokes velocity by the surface current. The parameter, F, arises from the fetch variability of the wave field, and the parameter, R, arises from the duration variability of the wave [...]

by Sai Batchu  , Michael J. Diaz  , Lauren Ladehoff  and Brandon Lucke-Wold

Received: 27 September 2022;  Published: 03 February 2023;  doi: 10.21926/obm.neurobiol.2301153

Genes encoding for proteins associated with the plasma membrane, referred to as the membranome, have long been recognized to play an important role in the development and maintenance of glioblastoma multiforme (GBM). GBM cell lines are commonly used to mimic tumors for in vitro experiments, but the extent to which they resemble GBM tumors in relation to the membranome is unclear. The present study explores the resemblance of GBM cell lines to primary tumors regarding membranome expression. Gene expression data was [...]

by Kenji Amagai  , Hiroto Kotake  , Masahiro Munemura  , Sawako Shigeto  and Masayuki Horio

Received: 10 October 2022;  Published: 02 February 2023;  doi: 10.21926/jept.2301005

This paper describes the development of low-speed electric community buses (LSECBs) designed by the author's group and their spread situation in Japan. LSECBs are electric vehicles that can travel on public roads at speeds of less than 5.56 m/s (20 km/h). The university, local government, local businesses, and residents with a co-design approach developed the LSECBs. They have various advantages such as safety due to low speed and low energy consumption. In particular, the LSECBs have features not found in ordinary [...]

by Jacob G. Monroe  , Elizabeth Ramsey Bolton  and Emily Zechman Berglund

Received: 14 June 2022;  Published: 02 February 2023;  doi: 10.21926/aeer.2301017

The diffusion of distributed energy resources can overcome some challenges associated with the historical centralized model of electric power distribution. Decentralized generation by residential solar photovoltaic cells creates the potential for peer-to-peer (P2P) electricity trading, where households can act as consumers and prosumers to buy and sell renewable electricity. P2P energy markets are emerging at locations across the globe, and market performance is affected by various social, economic, and environment [...]

by Teow Yeit Haan  , Puteri Mimie Isma Nordin  , Nur ‘Izzah Ahmad Juanda  , Muhammad Afiq Mohd Shafi  and Pavithiran Krishnan

Received: 27 September 2022;  Published: 02 February 2023;  doi: 10.21926/aeer.2301016

Oil-contaminated or oily wastewater (OW) is generated from various industrial and domestic premises. It consists of fats, oils, and greases and may contain petroleum fractions such as diesel oil, gasoline, and kerosene. It is regarded as one of the most hazardous wastewaters, causing serious environmental and health threats to ecosystems and human beings. The global increase in the discharge of OW coupled with stringent regulations for effluent discharge and incessant drive for the reuse of treated wastewater neces [...]

by Robin Junker

Received: 24 November 2022;  Published: 01 February 2023;  doi: 10.21926/obm.icm.2301011

Stress in teaching leads to many teachers suffering from burnout or leaving the profession. Therefore, it is important to identify specific correlates of teacher stress. The role of student age and social-emotional competence in teacher stress emergence is still unclear To further clarify this relationship, 284 teachers were surveyed using a questionnaire that measured teacher stress, student year grade, and student social-emotional competence. Results show a strong negative relationship between grade level and tea [...]

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 Khac An DAO  , Hong Trang PHAM  and Van Vuong HOANG

Received: 01 September 2022;  Published: 31 January 2023;  doi: 10.21926/cr.2301006

Recently the GexOy nanomaterials have been studying intensively due to their interesting electronic materials, which have many particular properties and applications in nanotechnology and nano-devices fabrication. Much work has been done on many different synthesis methods and their properties of Ge and GexOy nanomaterials. However, the effects of the different Ge substrate surface states and Au catalyst layer thicknesses on the formation of different forms/morphologies of nanomaterials (nanowires, nanorods, nanopa [...]

by Christiano Lima Machado  and Carlos Eduardo Sanches de Andrade

Received: 23 September 2022;  Published: 31 January 2023;  doi: 10.21926/aeer.2301015

The amount of greenhouse gases has been growing dramatically in recent decades, producing global warming and causing climate change that affects the entire planet. To mitigate these emissions, several nations have committed to implementing measures to reduce emissions of these gases, with carbon dioxide being the main one. The transport sector is one of the leading carbon emitters. It needs to be the object of attention from government authorities and private companies so that sustainable solutions are planned and [...]