bluuebunny/crossref_metadata_2025 huggingface dataset:
On the eventual periodicity of fractional order dispersive wave equations using RBFS and transform
Authors: Jan Hameed Ullah , Uddin Marjan , Shah Irshad Ali , Khan Salam Ullah
Published: June 2022

In this research work, let’s focus on the construction of numerical scheme based on radial basis functions finite difference (RBF-FD) method combined with the Laplace transform for the solution of fractional order dispersive wave equations. The numerical scheme is then applied to examine the eventual periodicity of the proposed model subject to the periodic boundary conditions. The implementation of proposed technique for high order fractional and integer type nonlinear partial differential equations (PDEs) is beneficial because this method is local in nature, therefore it yields and resulted in sparse differentiation matrices instead of full and dense matrices. Only small dimensions of linear systems of equations are to be solved for every center in the domain and hence this procedure is more reliable and efficient to solve large scale physical and engineering problems in complex domain. Laplace transform is utilized for obtaining the equivalent time-independent equation in Laplace space and also valuable to handle time-fractional derivatives in the Caputo sense. Application of Laplace transform avoids the time steeping procedure which commonly encounters the time instability issues. The solution to the transformed model is then obtained by computing the inversion of Laplace transform with an appropriate contour in a complex space, which is approximated by trapezoidal rule with high accuracy. Also since the Laplace transform operator is linear, it cannot be used to transform non-linear terms therefore let’s use a linearization approach and an appropriate iterative scheme. The proposed approach is tasted for some nonlinear fractional order KdV and Burgers equations. The capacity, high order accuracy and efficiency of our approach are demonstrated using examples and resultsRBFs Methods
Controllability and stability capacity of a roll pair motion research
Authors: Khusanov Kakhramonjon
Published: June 2022

The process of deriving the equation of the perturbed motion of a roll pair during the processing of leather material is discussed in the article, taking into account the influence of dynamic factors. It is shown that one of the reasons for the unstable stress state on the contact surfaces in the roller mechanism are dynamic factors arising from inaccuracies in the manufacture of its individual parts, assembly defects, and the occurrence of an oscillatory process in the roller mechanism, as well as due to the non-uniform thickness of the processed material at its gripping during starting and stopping the machine. Methods for determining optimal controls are shown; they provide asymptotic stability of the unperturbed motion of a roll pair and the torque applied to the upper roll as a function of generalized coordinates.It is shown that the width of the contact strip of the clamp, which depends on the radii of the rolls and the hardness of the coatings, has a significant effect on the efficiency of the rolls. The larger the shaft radius, the lower the actual pressure per unit contact area.

It is shown that the squeezing efficiency increases with the improvement of the conditions for the removal of the squeezable liquid from the rolls (with their horizontal arrangement), with an increase in its temperature and a decrease in viscosity. Efficiency decreases with increasing material speed and thickness.

It is shown that the width of the contact strip of the clamp, which depends on the radii of the shafts and the stiffness of the coatings, has a significant impact on the efficiency of the shafts. The larger the shaft radius, the lower the actual pressure per unit contact area
The development of Fresnel lens concentrators for solar water heaters: a case study in tropical climates
Authors: Asrori Asrori , Susilo Sugeng Hadi
Published: June 2022

This paper discusses the application of Fresnel Lens Concentrator for Solar Water Heater which is a case study in Indonesia. The purpose of this study was to find an empirical equation of the relationship between Direct Normal Irradiance (Ib) and focal point temperature (Tf). The research location is Latitude: 7.9553 °S and Longitude: 112.6145°E. The SM-206 solar power meteris used.The Fresnel lenses are made of PMMA material. Its specifications are: diameter=1000 mm; weight=2 kg; thickness=2 mm; groove pitch=0.5 mm and focal length=880 mm.The main experimental setup consists of a PMMA Fresnel lens and a receiver. The conical cavity receiver has specifications; geometric concentration ratio,CRg=8, and V=2 Liters. Temperature measurement is done using a temperature data acquisition system. The K-type thermocouple is used to measure:

1) ambienttemperature (Ta);

2) the focal point temperature (Tf);

3) receiverwall temperature (Tr);

4) watertemperature (Tw).

The experiment obtained the results of the empirical equation for the relationship between Direct Normal Irradiance (Ib) and focal point temperature (Tf). The increase in solar radiation produces a focus temperature, exponentially. At DNI 858 W/m2 it can produce a focal temperature of up to 1064 °C. The efficiency of the receiving cavity of the thermal cone which contains 2 litres of water and CRg=8 under conditions of relatively Direct Normal Irradiance ( =675 W/m²) is about 10.61 %. Furthermore, the energy that can be generated in heating water is 0.17–0.32 MJ, in 100 minutes. Heat convection and radiation loss can be reduced by adding an insulating layer to the walls and coating the surface with black
Positioning ubuntu as a strategy to transform classism in university classrooms
Authors: Omodan Bunmi Isaiah , Makena Bulelwa
Published: June 2022

Social parity, in the form of classism creates an environment where students from less privileged backgrounds feel subjugated and disadvantaged by social intimidation. In order to eliminate classism in university classrooms, the study proposes the potential of Ubuntu as a transformative strategy to promote a university system that is free of intimidation and discriminatory social classes that aid social inequalities. Hence, the study answers the following questions: What are the assumptions of Ubuntu? And how can the assumptions be used to unpack classism within university classrooms? The transformative paradigm was used to lens the study because it resonates with researchers' intention to create and suggest plausible ways of building a just and equitable university community. The analysis of Ubuntu as a transformative strategy was presented using thematic analysis to conceptualise and interpret Ubuntu and its underlying assumptions towards transforming classism. The study concludes that mirroring oneself in others, communality and togetherness, humanity and unity, and egalitarian practices is a dimension of a classless university classroom toward an equitable society. Therefore, university classrooms should be tailored toward love, communality and togetherness, humanity and unity of purpose, and egalitarian practices
Sulfolobus Solfataricus Chaperonin Prevents Lysozyme from Aggregating During Refolding and During Heat Denaturation
Authors: Guagliardi Annamaria , Cerchia Laura , Rossi Mose
Published: June 2022

Su!folobus solfataricus chaperonin interacts in an ATP hydrolysis-reversible manner with the non­ native molecules responsible for aggregation during refolding of chemically unfolded lysozyme and during heating of native lysozyme. The molecules of lysozyme bound during refolding and during heating have the same binding stoichiometry. and there is evidence that they share the same binding surfaces on the chaperon in molecule.
A Study of Highly Purified Pig Gastric Mucin by Scanning Tunnelling Microscopy
Authors: Roberts C.J. , Shivji A. , Davies M.C. , Davis S.S. , Fiebri I. , Harding S.  E. , Tendler S.J .B. , Williams P.  M.
Published: June 2022

Scanning tunnelling microscopy has been employed to visualize the structure of pig gastric mucin. Typically the expected protein backbone with a carbohydrate brush was observed, but with unexpectedly long carbohydrate chains (100 sugars as compared to 20). A small percentage of the mucin molecules displayed smooth heavily glycosylated regions, joined by naked protein backbone. These structures are consistent with the linear model for mucin sub-unit structure and the swollen random coil and linear random coil models for tertiary organization.
Pathophysiology of SARS-CoV2 Mediated Depression, Therapeutics, and Consequences: A Comprehensive Narrative
Authors: Sharma Bechan , Khushboo  , Siddiqi Nikhat J.
Published: June 2022

The corona virus disease 2019 (COVID-19), caused by severe acute respiratory syndrome corona virus type 2 (SARS-CoV-2), belongs to emerging and reemerging diseases, which was first identified and reported in Wuhan, China, during December 2019. The genetic sequence of SARS-CoV-2 was similar to SARS virus, a β-corona virus. The epidemiologicalstudies suggest that the transmission of SARS-CoV-2 mainly occurs from an infected person to others through close contact with the respiratory droplets or by having contact with SARS-CoV-2adhering toobjects and surfaces. The incubation period ranges from 5 to14 days. During COVID-19, the occurrence of fever, dry cough, tiredness, aches, chest pain, conjunctivitis, diarrhea, headache, difficulty in breathing or short breath, loss of taste, smell, rashes on the skin,andsore throat.Some reports indicated that males exhibited lower scores than females, the younger populations displayed increased symptoms, Chinese/Taiwanese people registered only scarce symptoms and Canadians experienced more symptoms. The results of some studiesindictaed that COVID-19 significantly impacted on depression whereas job insecurity impacted on anxiety and depression. The risk factors of COVID-19 pandemic include steep rise in the degree of fear, worry, mainly the health care providers, infants, pregnant ladies, older adults, patients receiving treatment in hospitals, development of psychosomatic disorders including depression with serious immunological consequences in infectedindividuals. The diagnostics to detect the presence of corona virus involves ELISA and RT-PCR. There is no specific treatment available to eradicate COVID-19. The therapeutics used to treat COVID 19 exhibited severe side effects. Recently, some Indian traditional medicinal plants have shown promises to reduce the risk of viral infection and also boost immunity of an invidual.This paper presents an overview of the current status of depression in the SARS CoV2 infected people and the measures required to overcome COVID-19 induced depression in patients even after recovery.
Antipsychotics Induced Drug Reaction with Eosinophilia and Systemic
Symptoms (DRESS) Syndrome: Literature Review and a Report of a Suspected
Case Related to Chlorpromazine
Authors: Ghozlane Lakhoua , Asma Jerbi , Ahmed Zaiem , Ons Charfi , Sarrah Kastalli , Riadh Dhaghfous , Sihem El Aidli
Published: June 2022

Introduction/background:

Drug reaction with eosinophilia and systemic symptoms reaction
(DRESS) syndrome is a serious, potentially life-threatening drug side effect associated with
more and more drugs. However, antipsychotics have rarely been involved in such condition.

Case Report:

We report here a suspected case of chlorpromazine induced DRESS syndrome in a
33-year-old woman with a history of allergic rhinitis and bipolar disorder who has reported an unexplored
generalized skin eruption after taking chlorpromazine 10 years before.

:

Only 24 hours after starting the therapy, the patient developed erythematous skin eruption on her
limbs and her trunk with biological abnormalities, including liver enzyme elevation and eosinophilia.

:

Skin eruption disappeared spontaneously within 3 days after therapy discontinuation and subsequently,
biological abnormalities regressed. Patch tests were performed and were positive for
chlorpromazine. At same time, we performed a literature review of the DRESS syndrome induced
by antipsychotics. No patch tests were performed for those cases.

Conclusion:

Clinicians should be aware of such clinical features after starting patients on antipsychotics
to withdraw the culprit drug as early as possible and avoid further complications.
Exploring Synthesis and Chemotherapeutic Potential of Thiosemicarbazide Analogs
Authors: Mishra Rakhi , Kumar Akhalesh , Mazumder Avijit , Mazumder Rupa , Varshney Shruti
Published: June 2022

Background:

Cancer is a leading cause of death worldwide, accounting for nearly 10 million deaths in
2020. Researchers are continually finding new and more effective medications to battle the diseases.

Objective:

The objective of this study is to identify the emerging role of Thiosemicarbazide analogs for different types
of cancer targets with a glance at different novel synthetic routes reported for their synthesis.

Methods:

A systematic literature review was conducted from various sources over the last 15 years with the inclusion
of published research and review articles that involves the synthesis and use of thiosemicarbazide analogs for different
targets of cancer. Data from the literature review for synthesis and anticancer potential for specific targets for cancer
studies of thiosemicarbazide analogs are summarized in the paper.

Results:

There are several emerging studies for new synthetic routes of thiosemicarbazide derivatives with their role in
various types of cancers. The main limitation is the lack of clinical trial of the key findings for the emergence of new
anticancer medication with thiosemicarbazide moiety.

Conclusions:

Emerging therapies exist for use of a limited number of medications for the treatment of cancer; results of
the ongoing studies will provide more robust evidence in the future.
Parallelised Multithreaded Applications on a 4-core Field Programmable Gate Array (FPGA) Architecture
Authors: Adam George K.
Published: June 2022

The challenges in real-time multithreading, particularly in the efficiency of multithreaded applications running concurrently on multiple cores, have evolved significantly due to the increase in IoT, cloud and edge computing applications. The continuous increase in cores depth adds further research issues related to the efficiency of such multicore systems and their applications. Therefore, further research is still required.

Background:

Multicore systems can achieve higher performance running in parallel multiple multithreaded applications. However, efficient parallelisation of multiple threads among many cores is not an easy task. Field Programmable Gate Arrays (FPGAs) is a preferred technology for the rapid design and experimentation with such architectures, based primarily on softcore processors.

Objective:

The purpose of this research is to investigate the efficiency of running in parallel and concurrently multithreaded applications on a 4-core FPGA multicore architecture.

Methods:

The design of a 4-core FPGA architecture is implemented with Nios II/f soft processors on a Cyclone IV series chip, having real-time Linux operating system (OS) support. A multithreaded application with specific compute-intensive tasks is developed in C, and is used to obtain measurements in specific efficiency metrics under different core configurations.

Results:

The reliability of the proposed 4-core FPGA architecture is validated against 4-core and 2- core development platforms, respectively, on Raspberry Pi4 and BeagleBone AI single board computers. The results have been analysed and evaluated upon performance metrics, including execution time, response time, speedup, and cores usage. The experimental tests demonstrate the validity and efficiency of the approach to using FPGA for experimentations with multithreaded applications.

Conclusion:

The obtained results show that the proposed FPGA architecture stands well both in terms of timing and efficiency metrics. Execution times are about 50% lower, and the average speedup at 21% is fairly close to that of 33% for the Raspberry Pi4, and higher than BeagleBone AI (10%). The proposed measurements approach and evaluation methodology could benefit the design and development of real-time systems utilizing operating systems with real-time support in emerging areas, such as embedded devices in real-time control.
effect of drying temperature and time on the chemical and functional characteristics of couple bean surrounding flour (Vigna unguiculata)
Authors: Jaya I Made Artha Widyantara , Wisaniyasa Ni Wayan , Putra I Nengah Kencana
Published: June 2022

Cowpea has a high protein value but contains anti-nutritional substances so that the germination process is required. Cowpea sprouts can be processed into flour which is then used as raw material for various processed food products such as instant porridge. This study aimed to examine the chemical and physical characteristics of cowpea sprouted flour due to temperature treatment and drying time. This study used a completely randomized design with a factorial pattern with two treatment factors, namely temperature consisting of 3 levels (50oC, 60oC and 70°C) and drying time factor consisting of 12, 14 and 16 hours. The data obtained were analyzed using variance, if it had a significant effect (P<0.05) followed by the Least Significant Difference (LSD) test. The results showed that the temperature treatment of 70oC and drying time of 16 hours was the best treatment which produced cowpea sprouts flour with a water content of 2.51%, ash content of 4.93%, protein content of 24.52%, fat content of 2.34%, content of carbohydrates 65.71%, crude fiber content 9.36%, wettability 178.76 seconds, kamba density 0.43 g/ml, water absorption index 1.73 mlH2O/g, solubility index 40.60% and color (L) 80.47.
Nuevos registros y listado de protozoarios y artrópodos de aves acuáticas de la familia Anatidae en humedales mexicanos
Authors: Padilla-Aguilar Patricia , Romero-Callejas Evangelina , García-Márquez Luis Jorge , Cruz-Mendoza Irene , Alcalá-Canto Yazmin
Published: June 2022

El objetivo de este estudio fue realizar el primer inventario de protozoarios y artrópodos de aves acuáticas de la familia Anatidae en México, para lo cual se realizó una colecta de estos grupos de organismos en campo a partir de la revisión de sangre, músculos y plumas de 55 aves acuáticas de 41 especies procedentes de humedales de México y posteriormente se llevó a cabo una revisión de la bibliografía y colecciones biológicas para analizar los datos y desarrollar un listado general con los registros para México. De los anátidos colectados en campo se identificó a Haemoproteus nettionis y a Sarcocystis sp. Con respecto a los artrópodos, se determinaron cinco taxa de piojos, Anaticola sp., Anaticola crassicornis, Anatoecus dentatus, Holomenopon maxbeieri y Trinoton querquedulae, además de tres especies de ácaros, Bdellorhynchus sp., Freyana largifolia y Freyana anatina. Mediante la recopilación de registros publicados en la literatura del año 1989 hasta 2019, se obtuvieron 46 registros de cinco especies de protozoarios y 59 registros de artrópodos correspondientes a nueve especies de piojos y tres de ácaros, asociados con 15 especies de aves de la familia Anatidae, distribuidos en diez estados de la República Mexicana (Coahuila, Durango, Estado de México, Hidalgo, Jalisco, Puebla, San Luis Potosí, Sinaloa, Tlaxcala y Yucatán). También se realizaron mapas de la distribución actual de los protozoarios y artrópodos que parasitan a especies de este grupo de aves en México. El conocimiento sobre las especies de protozoarios y ectoparásitos que se asocian con aves acuáticas de la familia Anatidae contribuye a la elaboración de planes y programas de manejo de especies para garantizar la conservación de las aves migratorias en Norteamérica. El conocimiento de la distribución de los patógenos que afectan a estas aves podrá sustentar la toma de decisiones, principalmente para aplicar estrategias de medicina preventiva que ayuden a la conservación de las especies de hospederos a fin de poder mantenerlos a largo plazo en nuestro país.
FAMILIA ORCHIDACEAE: TRIBU EPIDENDREAE
Authors:   Herbario AMO, Sánchez Saldaña Luis Martín , García-Cruz Javier ,   Herbario AMO, Jiménez Machorro Rolando ,   Herbario AMO, Solano Gómez Rodolfo ,   Herbario AMO
Published: June 2022

Sin duda, ésta es la tribu más numerosa de la familia en América tropical; incluye a los géneros propios del continente que presentan velamen y semillas distintivos. Se trata de un grupo muy diverso, el cual puede ser considerado como natural y está constituido por aproximadamente 78 géneros y posiblemente más de 5000 especies. Debido a sus flores bellas y vistosas, algunos de sus componentes son de gran interés hortícola, por lo que han sido objeto de una fuerte presión por parte de los recolectores; tal es el caso de especies de los géneros Laelia, Barkeria, Euchile y Prosthechea. En la región de la Flora la tribu está representada por 20 géneros, de los cuales Alamania, Arpophyllum, Brassavola, Domingoa, Myrmecophila, Nidema, Ponera, Restrepiella, Specklinia y Trichosalpinx son monoespecíficos. El mayor número de especies se encuentra repartido en los géneros Epidendrum, Prosthechea y Stelis.
FAMILIA ACANTHACEAE
Authors:   Department of Botany, California Academy of Sciences, Daniel Thomas F. , Acosta Castellanos Salvador ,   Departamento de Botánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional
Published: June 2022

Las Acanthaceae comprenden más de 4000 especies de unos 230 géneros ampliamente distribuidos en el mundo. En su mayoría crecen en las porciones tropicales y subtropicales, con sus principales centros de diversidad en las regiones indo-malesiana, africana (incluyendo Madagascar), sudamericana y mexicano-centroamericana. Ocupan casi todos los habitats intertropicales con excepción de los de alta montaña (por encima de 3000 metros). Para nuestra área se reconocen 61 especies de 18 géneros.
FAMILIA ALISMATACEAE
Authors:   Instituto de Biología, Universidad Nacional Autónoma de México, Novelo Alejandro
Published: June 2022

Familia con 12 géneros y aproximadamente 100 especies dulceacuícolas de amplia distribución mundial. En la región de esta Flora se han encontrado siete especies pertenecientes a dos géneros: Echinodorus y Sagittaria.
FAMILIA BLECHNACEAE
Authors:   Instituto de Ecología, A.C., Palacios‑Rios Mónica , Hernández Hernández Victoria ,   Instituto de Ecología, A.C.
Published: June 2022

La familia Blechnaceae está constituida por nueve géneros y aproximadamente 175 especies. Se distribuye extensamente en el mundo y se puede encontrar en un amplio intervalo de hábitats; sin embargo, raramente se presenta en climas secos; por lo general son plantas de hábito terrestre. Es una familia aislada y sus relaciones con otros helechos no son claras. Sus características distintivas son los soros alargados ubicados a lo largo de ambos lados de las costas y no hacia los márgenes. En México se encuentran los géneros Blechnum y Woodwardia, los cuales están representados en la zona de estudio. Las especies de Blechnum con hojas monomórficas hibridizan con frecuencia y los individuos originados por cruzamiento a veces llegan a ser localmente abundantes, pues se propagan por estolones. A diferencia de muchos otros helechos, en este género es difícil detectar a los híbridos mediante las características de las esporas, ya que éstas no siempre son o muestran ser abortivas. Las esporas son casi incoloras y las abortivas no se colapsan ni se tornan obscuras. Por otro lado, Woodwardia se encuentra distribuido en el Hemisferio Norte y en las regiones intertropicales habita en altas elevaciones. Está compuesto por 13 especies; de México se conocen sólo tres. Woodwardia es afín a Blechnum, pero se diferencia de este último por la presencia de soros interrumpidos en la costa.
Тепловые свойства вещества в рамках модели двухфазной системы
Authors: Терехов С.В.
Published: June 2022

It has been established that the relations of the two-phase system model are applicable for describing the thermal properties of solids with disordered and crystalline structures. It is shown that the model adequately describes the curves of isochronous and isothermal crys-tallization of amorphous alloys and thermal changes in the volume of their samples. It is also suitable for calculating the heat capacities and thermal expansion coefficients of sub-stances that are diverse in their physical nature.
How the Interaction of Heatwaves and Urban Heat Islands Amplify Urban Warming
Authors:   University of Quebec at Montreal (UQAM), Faculty of sciences, Institute of Environmental Sciences, Canada, Garuma Gemechu Fanta ,   Entoto Observatory and Research Center, Atmospheric and Climate Science Unit, Department of Space Science and Application Research at the Ethiopian Space Science and Technology Institute, Addis Ababa, Ethiopia
Published: June 2022

An increase in global temperature will likely result in more intense and frequent heatwaves that would last longer. Simultaneously, the growth of urban population requires more areas of land incorporated into urbanization, because most people are expected to live in cities, which will increase the intensity and duration of urban heat islands. However, the extent of the link between global warming induced heatwaves and urbanization caused heat islands is barely understood. Understanding the link would give a new information about catastrophic heat mitigation strategies. This paper, therefore, quantifies, at the sub-continental scale of Eastern North America, the effects of background perturbations by the synergies between heatwaves and urban heat islands using simulations from the Weather Research and Forecasting (WRF) model, and focusing on the responses of urban energy balances, boundary layer height and vertical profiles of heat, momentum and moisture. Results showed that urban heat islands exacerbate heatwaves by deepening the turbulent boundary layer height, modifying the urban surface energy and regional winds. The fractional energy shift from latent to sensible heat fluxes and the consequent changes to the urban planetary boundary layer tends to amplify the intensity, extent and duration of extensive heatwaves. The response of ground heat fluxes to urban surfaces lags, while urban canopy humidity dissipates earlier because at the onset of the heatwave the surface water evaporates quickly to the point where there is less water left for evaporation leaving the urbanized regions vulnerable to more heating. During the heatwave event, the mean wind speed dropped by 2.5 m/s, hence less cool air is available for ventilation. The planetary boundary layer deepens by a maximum of 90-m over urban compared to rural and this may prolong urban surface heating. Based on the results, it can be concluded that the best heat-stress management strategies from the perspectives of urban energy balance and planetary boundary layer height is an integral approach that would lower sensible heat fluxes and increase surface albedo, latent heat fluxes and wind flows towards urban centers.
Synthesis of a Solid Base Catalyst Formed from Zinc(II) Acetylacetonate and Consisting of MgO Modified with ZnO
Authors:   Department of Science, Hokkaido University of Education, 1-2 Hachiman-cho, Hakodate 040-8567, Japan, Matsuhashi Hiromi
Published: June 2022

Solid base catalysts consisting of MgO modified with 10 mol% ZnO (ZnO/MgO) were prepared by depositing zinc(II) acetylacetonate (Zn(acac)2) in polar and nonpolar organic solvents on the surface of MgO and Mg(OH)2. The process was followed by thermal decomposition in air at 773 K over a period of 3 h. The activity of MgO modified with Zn(acac)2 for base-catalyzed retroaldol reaction (the decomposition of diacetone alcohol (4-hydroxy-4-methyl-2-pentanone) to acetone) at 299 K was higher than the activity of unmodified MgO prepared by thermal decomposition of Mg(OH)2. The activity of the catalysts prepared by depositing Zn(acac)2 on Mg(OH)2 was lower than that of unmodified MgO. Analysis of X-ray diffraction patterns revealed the presence of highly intense peaks, which were assigned to the ZnO units in the samples with high catalytic activity. ZnO was deposited in the form of large particles on the surface of MgO in the catalysts with high activity.
Experiences, Motivations, and Perceived Impact of Participation in a Facebook-Based Support Group for Caregivers of Children and Youth With Complex Care Needs: Qualitative Descriptive Study
Authors: Kelly Katherine Jennifer , Doucet Shelley , Luke Alison , Azar Rima , Montelpare William
Published: June 2022

Background

Caregivers of children and youth with complex care needs (CCNs) often require considerable support to ensure the well-being of their families. Social media present an opportunity to better support caregivers through computer-mediated communication for social support. Peer-to-peer (P2P) support groups are a way in which caregivers are accessing needed support; however, the experiences of caregivers who use these groups and the perceived impact that participation has on caregivers of children and youth with CCNs are not known.

Objective

This study aimed to explore the experiences of caregivers of children and youth with CCNs who use a Facebook-based P2P support group to communicate, understand their motivations to use the group, and investigate its perceived impact on knowledge of programs and services and sense of community belonging among caregivers.

Methods

A qualitative descriptive design was used to explore the experiences and perceived impact of a Facebook-based (Meta Platforms) P2P support group for caregivers of children and youth with CCNs in New Brunswick, Canada. The group was launched on the web in October 2020, during the COVID-19 pandemic, and resulted in 108 caregivers joining the group. A web-based survey was distributed, and semistructured interviews were conducted in February 2021 with a subsample of members. Thematic analysis was used to identify and report patterns related to caregivers’ experiences and perceived impacts of participation.

Results

A subsample of members in the Facebook group completed the web-based survey (39/108, 36.1%) and interviews (14/108, 12.9%). A total of 5 themes emerged from the interviews: safe space, informational support and direction, web-based connection with peers, impact on knowledge of programs and services, and degree of community belonging. Participants reported joining the group to obtain geography-specific information support and connect with peers. Many participants reported an improvement in their knowledge of programs and services and felt connected to the community; however, the short observation period and diversity among the caregiver population were cited as barriers to community belonging.

Conclusions

Social media present an important opportunity to facilitate the exchange of support between patients and caregivers in an accessible and curated environment. Findings from this study suggest that involvement in web-based, geography-specific P2P support groups can influence perceived knowledge of services and resources and sense of community belonging among caregivers of children and youth with CCNs. Furthermore, this study provides insight into the experiences and motivations of caregivers of children and youth with CCNs who participate in a private social media environment.
Remote Delivery of Yoga Interventions Through Technology: Scoping Review (Preprint)
Authors: James-Palmer Aurora , Anderson Ellen Zambo , Daneault Jean-Francois
Published: June 2022

BACKGROUND

The popularity of yoga and the understanding of its potential health benefits have recently increased. Unfortunately, not everyone can easily engage in in-person yoga classes. Over the past decade, the use of remotely delivered yoga has increased in real-world applications. However, the state of the related scientific literature is unclear.

OBJECTIVE

This scoping review aimed to identify gaps in the literature related to the remote delivery of yoga interventions, including gaps related to the populations studied, the yoga intervention characteristics (delivery methods and intervention components implemented), the safety and feasibility of the interventions, and the preliminary efficacy of the interventions.

METHODS

This scoping review was conducted in accordance with the PRISMA-ScR (Preferred Reporting Item for Systematic Reviews and Meta-Analyses extension for Scoping Reviews) guidelines. Scientific databases were searched throughout April 2021 for experimental studies involving yoga delivered through technology. Eligibility was assessed through abstract and title screening and a subsequent full-article review. The included articles were appraised for quality, and data were extracted from each article.

RESULTS

A total of 12 studies of weak to moderate quality were included. Populations varied in physical and mental health status. Of the 12 studies, 10 (83%) implemented asynchronous delivery methods (via prerecorded material), 1 (8%) implemented synchronous delivery methods (through videoconferencing), and 1 (8%) did not clearly describe the delivery method. Yoga interventions were heterogeneous in style and prescribed dose but primarily included yoga intervention components of postures, breathing, and relaxation and meditation. Owing to the heterogeneous nature of the included studies, conclusive findings regarding the preliminary efficacy of the interventions could not be ascertained.

CONCLUSIONS

Several gaps in the literature were identified. Overall, this review showed that more attention needs to be paid to yoga intervention delivery methods while designing studies and developing interventions. Decisions regarding delivery methods should be justified and not made arbitrarily. Studies of high methodological rigor and robust reporting are needed.
Outpatient Care Among Users and Nonusers of Direct-to-Patient Telehealth: Observational Study (Preprint)
Authors: Cuellar Alison , Pomeroy J Mary Louise , Burla Sriteja , Jena Anupam B
Published: June 2022

BACKGROUND

Expansion of telehealth insurance coverage is hampered by concerns that such coverage may encourage excessive use and spending.

OBJECTIVE

The aim of this paper is to examine whether users of telehealth services rely more on other forms of outpatient care than nonusers, and to estimate the differences in payment rates.

METHODS

We examined claims data from a large national insurer in 2017. We limited our analysis to patients with visits for 3 common diagnoses (N=660,546). We calculated the total number of visits per patient, overall, and by setting, and adjusted for patient- and county-level factors.

RESULTS

After multivariable adjustment, telehealth-visit users, compared to nonusers, had 0.44 fewer visits to primary care, 0.11 fewer visits to emergency departments, and 0.17 fewer visits to retail and urgent care. All estimates are statistically significant at P<.001. Average payment rates for telehealth visits were lower than all other settings.

CONCLUSIONS

These findings suggest that telehealth visits may substitute rather than add to in-person care for some types of care. Our study suggests that telehealth visits may offer an efficient and less costly alternative.
Theoretical approach and scale construction of doctors’ protection behavior of patients’ privacy in Chinese public medical institutions (Preprint)
Authors: Xu Jie , Lu Lu , Xing Kaichen , Shi Huwei , Chen Ruiyao , Yao Yujun , Liu Sichen
Published: June 2022

BACKGROUND

Considering the high incidence of medical privacy disclosure, it is of vital importance to study doctors’ privacy protection behavior and its influencing factors.

OBJECTIVE

We aimed to explore the internal mechanism of doctors' protection of patients' privacy in Chinese public medical institutions using of grounded theory, in order to construct a theoretical model framework, to develop, and subsequently to validate a scale to measure this protection behavior.

METHODS

Combined with PMT and interview data, the grounded theory research method, and followed by the Delphi expert and group discussion methods, a theoretical framework and initial scale for doctors in Chinese public medical institutions to protect patients' privacy was formed. The adjusted scale was collected online using a WeChat electronic survey. Exploratory and confirmatory factor analyzes and tests to analyze reliability and validity were performed on the sample data.

RESULTS

This study formed a theory regarding doctors' privacy protection behavior of patients in Chinese public medical institutions. Ultimately, we created a scale to measure 18 variables in the theoretical model, comprised of 63 measurement items, with a total of 208 doctors participating in the scaling survey. The research demonstrated that the scale had respectable internal consistency, in which the fit of the confirmatory factor model was good.

CONCLUSIONS

The theoretical framework and scale to assess doctors' patient protection behavior in public medical institutions in China ﬁlls a significant gap in the literature and can be used to further the current knowledge of physicians’ thought processes and adoption decisions.
Testing the effectiveness of an animated decision aid to improve recruitment of control participants in a case-control study: An online experiment (Preprint)
Authors: Stoffel Sandro T. , Law Jing Hui , Kerrison Robert , Brewer Hannah Rose , Flanagan James M. , Hirst Yasemin
Published: June 2022

BACKGROUND

Participation in case-control studies is crucial in epidemiological research. The self-sampling bias, low response rate, and poor recruitment of population representative controls are often reported as limitations of case-control studies with limited strategies improve participation. With greater use of web-based methods in health research, there is further need to understand the effectiveness of different tools to enhance informed decision making and willingness to take part in research.

OBJECTIVE

This study tested whether the inclusion an animated decision aid, in the recruitment page of a study website, can increase participants’ intentions to volunteer as controls.

METHODS

1,157 women were included in an online experiment, and randomised to one of two experimental conditions: one in which they were exposed to a simulated website that included the animation (animation; n=693), and one in which they were exposed to the simulated website without the animation (control; n=732). The simulated website was adapted from a real website for a case control study, which invites people to consider taking part in a study that investigates differences in purchasing behaviours between women with and without ovarian cancer and share their loyalty card data collected through two high street retailers with the researchers. After exposure to the experimental manipulation, participants were asked to state: 1) their intention to take part in the case-control study, 2) whether they themselves would be willing to share their loyalty card for research and 3) their willingness to be redirected to the real website after completing the survey and 3). Data were assessed using ordinal and binary logistic regression, reported in percentages (%), adjusted odd ratio (aOR) and 95% confidence intervals (95% CI).

RESULTS

Including the animation in the simulated website did not increase intentions to participate in the study (aOR 1.09; 95% CI 0.88-1.35) or willingness to visit the real study website after the survey (control 50.5% vs. animation 52.6%, aOR 1.08; 95% CI 0.85-1.37). The animation, however, increased the participants’ intentions to share the data from their loyalty cards for research in general (control 17.9% vs. animation 26%; aOR 1.64; 95% CI 1.23-2.18).

CONCLUSIONS

While the results of this study indicate that the animated decision aid did not lead to greater intention to take part in our web-based case-control study, they show that they can be effective in increasing people’s willingness to share sensitive data for health research.

CLINICALTRIAL

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The Value of Teledermatology Advice for Skin Toxicity in Oncology: Experience From a Pilot Study (Preprint)
Authors: Mylle Sofie , Papeleu Jorien , Hoorens Isabelle , Verhaeghe Evelien , Brochez Lieve
Published: June 2022

UNSTRUCTURED

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Verbal Irony Comprehension in Adults who Speak English as an Additional Language
Authors: Marta Krygier-Bartz Marta , Glenwright Melanie
Published: June 2022

We examined whether adults who speak English as an Additional Language (EAL) have a decreased ability to comprehend verbal irony compared to native English speakers. Participants watched a series of 30-second videos containing ironic and literal statements. Respondents identified speaker’s belief, and rated speaker’s attitude and humor. EAL speakers were less reliable than native English speakers in identifying the speaker’s belief for both ironic and literal statements and showed lower humor ratings for ironic criticisms.
COMPARATIVE ANALYSIS OF SURGICAL AND ENDOVASCULAR TREATMENT OF INTRACRANIAL ANEURYSMS
Authors: Milisavljević Filip , Miljković Aleksandar , Bogdanović Ivan , Pajić Srbislav , Knežević Saša , Lazić Igor
Published: June 2022

With a prevalence of about 2.3%, intracranial aneurysms represent the most common cause of spontaneous subarachnoid hemorrhage. Many studies compared currently most common therapeutic options-neurosurgical clipping and endovascular embolization, but so far no single solution in which therapeutic method should have an advantage has been found. The aim was to compare the outcome of treatment on discharge, among patients treated with clipping or embolization. The data of 62 patients treated at the Neurosurgery Clinic of the Clinical Center of Serbia, were obtained through discharge lists. The analysis included data on sex, age, Glasgow coma scale, aneurysm rupture, Hunt & Hess scale, localization, number of aneurysms, length of overall and postoperative stay as well as the existence of complications. The condition on discharge was assessed using the Glasgow outcome scale. In our study 37 subjects (59.7%) had a subarachnoid hemorrhage, while 25 (41.9%) patients were without bleeding. 30 patients underwent surgery, while 32 were treated by embolization. No significant relationship between the treatment modality and outcome on discharge was observed (p=0.115). Patients without bleeding had a significantly better outcome on discharge when treated by endovascular method (p<0.001), whereas in the group with a rupture no differences were found (p=0.35). Complications were significantly more common after surgery (p=0.026). No difference among the groups in the length of the total hospital stay was found (p=0.246), while a significantly longer postprocedural period was recorded following neurosurgical treatment (p=0.029). Groups treated with different modalities did not differ in the outcome on discharge. However, the percentage of complications was greater in the group of patients undergoing surgery, as well as the length of postoperative hospital stay. We believe that furthe detailed analyzes offering information on the condition of patients after a long period of follow-up iare required.
INTRACRANIAL EMBOLIZATION: A RARE COMPLICATION
Authors: Lazić Igor , Todorović Marko , Knežević Saša , Nedeljković Žarko , Vukašinović Ivan , Jovanović Vladimir
Published: June 2022

We report a case of a rare complication: aortic pseudoaneurysm rupture after embolization of an intracranial aneurysm in a 62 –year- old patient with spontaneous subarachnoid hemorrhage, presented with chest pain and shortness of breath the fourth day after the procedure. The intracranial aneurysm was embolized with no intraoperative complications, and a postprocedural CT (computed tomography) scan showed no signs of intracranial rebleeding, ischemic lesions, or hydrocephalus. Cardiosurgical treatment was not indicated for the aortic pseudoaneurysm rupture.
CORRIGENDUM
Authors: Team Editorial
Published: June 2022

EditorialLjiljana ŠaranacTWO CENTURIES AFTER DISCOVERY OF SELENIUM, STILL BETWEEN MEDICAL USE AND MISUSE IN CLINICAL PRACTICEFACTA UNIVERSITATIS, Series Medicine and Biology Vol. 22, No 2, 2021, pp. i-iv, doi: http://doi.org/10.22190/FUMB210210001S  The Editor-in-Chief has been informed that the Editorial ‘Two Centuries after Discovery Of Selenium, Still Between Medical Use and Misuse in Clinical Practice’, FACTA UNIVERSITATIS, Series Medicine and Biology Vol. 22, No 1, 2021, pp. i-iv, doi: http://doi.org/10.22190/FUMB210210001S, has been omitted in prinded version of the journal. The Editor-in-Chief has decided to publish a corrigendum for this editorial. Link to the online version of editorial: http://doi.org/10.22190/FUMB210210001S
Moussonia Larryskogii (Gesneriaceae) una especie nueva de México
Authors: RAMÍREZ ROA ANGÉLICA
Published: June 2022

SE DESCRIBE MOUSSONIA LARRYSKOGII (GESNERIACEAE) UNA NUEVA ESPECIE DE OAXACA Y VERACRUZ, MÉXICO. ESTA ESPECIE ES SEMEJANTE A MOUSSONIA STRIGOSA (C. V. MORTON) WIEHLER, ESPECIE DE COSTA RICA, DE LA CUAL SE DIFERENCIA PRINCIPALMENTE POR LA PUBESCENCIA VILOSA CON TRICOMAS ADPRESOS EN CASI TODA LA PLANTA, 2 A 3 HOJAS POR NUDO, SUPERFICIE DEL ENVÉS NO AMPOLLADO, INFLORESCENCIA RAMIFICADA DE TIPO CIMA COMPUESTA NO UMBELADA, FLOR TUBULAR, Y EL TUBO DEL CÁLIZ OBCÓNICO. SE DA A CONOCER UN POSIBLE HÍBRIDO NATURAL ENTRE ESTA ESPECIE Y MOUSSONIA HISUTISSIMA (C.V. MORTON) WIEHLER
IMPROVING STUDENT'S SELF EFFICACY THROUGH THE USE OF CONCEPT-BASED PHYSICS MODULE
Authors:   IAIN KERINCI, Juita Dewi , M Yusmaridi ,   Universitas Negeri Padang
Published: June 2022

Students' confidence in their ability to study material and work on physics questions needs to be a concern during the covid-19 pandemic. This belief is called self-efficacy. This self-efficacy can be increased by using teaching materials that are designed by educators according to the characteristics of the students they teach. Concept-based modules are used in basic physics lectures on Particle Dynamics. This study aims to describe the increase in student self-efficacy before and after using the module. In addition, this study also wanted to see whether there was a significant difference in student self-efficacy between before and after using the module. This research method uses a pre-experimental method with one group pretest posttest design. The sample used in the research is odd semester students for the 2021/2022 academic year. The results showed the  value of 0.45 which indicated that there was an increase in student self-efficacy after using the concept-based module in the moderate category. The difference in student self-efficacy between before and after using the concept-based module was also significant by referring to the sig value. (2-tailed) 0.000 < 0.05.
DESIGN AND BUILD A MINI POWER BANK AS A STORAGE ELECTRIC ENERGY FROM DRAGONS FRUIT STEM (HYLOCEREUS POLYRHIZUS)
Authors:   Universitas PGRI Sumatera Barat, Rahmadani Eza , Helendra Helendra ,   Universitas PGRI Sumatera Barat, Husna Husna ,   Universitas PGRI Sumatera Barat
Published: June 2022

Research has been carried out on the design of a mini power bank using dragon paste as a source of electrical energy. The voltage and current produced by this dragon paste and power bank are measured using a digital multimeter. Dragon paste used in series and parallel. The voltage generated by the dragon paste is connected to a DC step up. The use of step up dc aims to increase the dragon paste voltage, so that the resulting voltage can reach a maximum of 5.16 V and can charge lithium-ion batteries that have been arranged in parallel using the power bank kit module.