bluuebunny/crossref_metadata_2025 huggingface dataset:
Site formation processes and pollution risk mitigation of World War II oil tanker shipwrecks: Coimbra and Munger T. Ball
Authors: Brennan Michael L. , Delgado James P. , Jozsef Aaron , Marx Deborah E. , Bierwagen Matthew
Published: June 2023

Locating and documenting potentially polluting wrecks is essential in determining the risks they pose to causing oil spills as weaking hulls in the marine environment continue to corrode. Expeditions in 2019 and 2021 to two World War II oil tankers, Coimbra and Munger T. Ball, assessed the site formation processes and integrity of the hulls for pollution mitigation. This was followed by remediation that removed large amounts of oil from the tanks accessible on these wrecks. Lessons learned indicate that such approaches to shipwrecks in deeper waters may prove useful to locating wrecks and mitigating future potential spills.
Development of a dashboard analytics platform for dementia caregivers to understand diagnostic test results
Authors: Roosan Don , Chok Jay , Nersesian Teresa , Li Yan , Law Anandi , Li Yawen
Published: June 2023

Alzheimer's Disease and Related Dementias (ADRD) create unimaginable stress and financial burden in the lives of informal caregivers, including family and friends. However, the current healthcare system is not designed to incorporate caregivers in the healthcare team model for an early diagnostic process. The objectives of the focus group study are twofold: 1) to understand the digital information needs of caregivers to develop a user-friendly digital health app for the early diagnosis of ADRD patients, and 2) to assess the willingness of caregivers to be included in the early diagnosis process using a digital health app. We conducted a focus group study to understand caregivers' digital information needs and willingness to participate in the early diagnosis of ADRD. A total of 25 caregivers participated in the five focus group sessions. Data analysis revealed three main themes: 1) eagerness to be involved with the healthcare team for diagnosis, 2) facilitating digital communication for early diagnosis, and 3) chronicling the journey. Our unique finding demonstrates caregivers' willingness to participate in diagnostics by utilizing innovative digital health applications. The result of this study informs an intuitive digital interface based on user-centered design.
Novel alginate-based binders for silicon-graphite anodes in lithium-ion batteries: Effect of binder chemistry on the electrochemical performance
Authors: Güneren Alper , Nada Ahmed A. , Šišková Alena Opálková , Mosnáčková Katarína , Kleinová Angela , Mosnáček Jaroslav , Lenčéš Zoltán
Published: June 2023

Novel alginate-based binders containing either catechol (d-Alg) or sulfonate (s-Alg) functional groups were developed and characterized to improve the capacity decay performance and better stability of Li-ion batteries. The electrochemical performance of silicon-graphite (Si/Gr) anode with alginate-based binder was compared to the commonly used CMC/SBR binder. The active material in the anodes was the ball-milled Si/Gr (20:80 wt%) powder mixture. A comprehensive electrochemical study was carried out through rate capability test, cycle test, differential capacity analysis (dQ/dV), and electrochemical impedance spectroscopy (EIS). The functionalized s-Alg binder showed the lowest electrolyte uptake (11.5%) and the highest tensile strength (97 MPa). Anodes with s-Alg exhibited high initial capacity (1250 mAh g− 1) and improved decay performance (580 mAh g− 1 at 0.2 C), by ~ 65% higher compared to CMC/SBR binder. The influence of pH value of s-Alg binder preparation showed that anodes prepared at pH 3 of s-Alg exhibit better performance, reaching 800 and 750 mAh g− 1 at 0.1 C and 0.2 C, respectively due to the stronger bonding formation and compactness of anode layer which providing low charge transfer and solid electrolyte interface resistance.
Analysis of passenger car tailpipe emissions in different world regions up to 2050
Authors: Feinauer Mario , Senzeybek Murat , Herwartz-Polster Sebastian , Dasgupta Isheeka , Ehrenberger Simone
Published: June 2023

This study presents the carbon dioxide (CO2), particulate matter (PM2.5) and nitrogen oxides (NOx) tailpipe emission analysis of passenger cars in 9 different world regions up to 2050 based on a bottom-up calculation method. A diffusion model which considers current policy electrification targets is used to analyze market entry and development of different drivetrain/fuel technologies in the respective vehicle stocks of each world region. Drivetrain- and country-specific emission factors are weighted according to the modelled stock compositions. The obtained stock-fleet-average emission factors are multiplied with the transport demand in order to obtain total passenger car emissions which are then spatially distributed using proxy raster emission data. The results of this study reveal that global passenger car CO2, NOx and PM2.5 emissions decrease from 2015 until 2050 by approx. 45%, 63% and 54%, respectively. The market analysis indicates that gasoline will continue to be a significant energy carrier in 2050 with a stock share of approx. 25%; however, electric vehicles will take the lead, especially after 2040. Furthermore, China and Europe stay as advancing markets for passenger car fleet electrification, while the majority of developing countries follow up with low shares. It can be obtained that even if the passenger car fleets become cleaner, an increase of the transport demand can dampen or even nullify the total emission reduction effect. As a conclusion, the bottom-up approach enables to quantify passenger car emissions in a transparent way. However, challenges exist regarding the uncertainty caused by lacking data availability.
SULF1 promotes malignancy potential of cervical cancer by activating VEGFR2/PI3K/AKT signaling pathway
Authors: Li Juan , Wang Xihao , Li Zhilong , Li Minzhen , Zheng Xuelian , Zheng Danxi , Wang Yanyun , Xi Mingrong
Published: June 2023

Purpose Identifying novel molecular targets remains essential in molecular targeted therapy for cervical cancer patients with advanced stage or reccurrence. Our study aims to investigate the precise roles and regulatory mechanism underlying SULF1 in the initiation and progression of cervical cancer (CC). Methods The expression and prognostic values of SULF1 in cervical cancer were analyzed through bioinformatics analysis, RT-PCR, immunohistochemistry and western blot assays. The function of SULF1 in proliferation, migration and invasion of cervical cancer cells through lentivirus transduction, CCK8, flow cytometry analysis, plate colony formation assay, scratch assay, Transwell assay and mouse models. Bioinformatics analysis and western blot assay were employed to identify the significant signaling pathways associated with SULF1 in cervical cancer. Results SULF1 expression was significantly upregulated in CC tissues, which was associated with poor prognosis of patients with CC. In vitro, the upregulation of SULF1 expression in cervical cancer HeLa cells promoted cell proliferation, colony formation, migration and invasion while inhibiting cell apoptosis. Conversely, downregulation of SULF1 expression had the opposite effect. In vivo. the upregulation of SULF1 expression resulted in a significant increase in both tumor growth and angiogenesis, while its downregulation had the opposite effect. Bioinformatics analysis, western blot detection and cell function rescue assay confirmed that the upregulation of SULF1 in HeLa cells promoted cellular tumorigenic behaviors by activating the VEGFR2/PI3K/AKT signaling pathway. Conclusion SULF1 plays an oncogenic role in the tumorigenesis and development of CC, indicating its potential as a novel molecular target for gene-targeted therapy in patients with CC.
Effects of PD-1, HMGB1 and LFA-1 polymorphisms on non-small cell lung cancer susceptibility
Authors: Chen Ruiqin , Xu Shaojun , You Chengxiong , Chen Chao , Zhang Zhi-Fan , Tang Wei-Feng , Chen Shu-Chen
Published: June 2023

Polymorphisms in some immunomodulatory genes are associated with susceptibility to non-small cell lung cancer (NSCLC). A total of 1,193 NSCLC patients and 1,056 healthy controls were recruited in this study to explore the association between polymorphisms of PD-1, HMGB1, and LFA-1 and the risk of NSCLC. Three related polymorphisms, PD-1 rs36084323, HMGB1 rs1412125 and LFA-1 rs2230433, were screened out by SNPscan™. The HMGB1 rs1412125 (T > C) genotype increased NSCLC susceptibility (CC vs TT: P = 0.006; CC vs TT + TC: P = 0.007), while LFA-1 rs2230433 G > C and PD-1 rs36084323 T > C genotypes were not associated with increased NSCLC risk. Further stratified analysis revealed that the HMGB1 rs1412125 T > C genotype increases NSCLC risk in men (homozygote: OR = 2.20, P = 0.004; dominance: OR = 1.29, P = 0.044; recessive: OR = 2.05, P = 0.008) and in smokers (homozygous: OR = 2.25, P = 0.030; dominance: OR = 1.48, P = 0.026). In summary, the HMGB1 rs1412125 T > C polymorphism increases NSCLC susceptibility.
Anais XL SAOJEM – 40ª Semana Acadêmica de Odontologia “Júlio Estrela Moreira” (UFPR) Universidade Federal do Paraná - 2023
Authors: Vieira Pedro Henrique Paulista , Oda Lisa Yurie , Araújo Melissa Rodrigues de , Michelotto André Luiz da Costa
Published: June 2023

Caro(a) leitor(a),

A Semana Acadêmica de Odontologia Júlio Estrela Moreira (SAOJEM) é um evento organizado por estudantes do curso de Odontologia da Universidade Federal do Paraná em parceria com o Centro Acadêmico de Odontologia Guido Straube. A SAOJEM é destinada a todos os entusiastas da Odontologia, desde os primeiros períodos da graduação até aqueles já formados, objetivando aprofundar e compartilhar conhecimentos, divulgar casos clínicos, experiências e resultados de pesquisas. Nos anos de 2020, 2021 e 2022 não foi possível realizar a SAOJEM em virtude do cenário desafiador imposto pela Pandemia de COVID-19, com inúmeras restrições à saúde. No entanto, já no segundo semestre de 2022, iniciamos a retomada do projeto do nosso evento. A edição de 2023 trouxe inúmeras inovações sob o ponto de vista organizacional e de geração de conteúdo, tais como uso de plataforma virtual única para inscrição no evento e atividades, submissão de trabalhos e geração de certificados; inclusão da gratuidade para alunos bolsistas do PROUNI; apresentação de painel em inglês; lunch and learn e espaço físico para projetos e programas de extensão - visando divulgar mais sobre algumas das atividades extracurriculares existentes na UFPR no âmbito do Ensino, Pesquisa e Extensão. A SAOJEM busca o aprimoramento e desenvolvimento profissional, trazendo aos participantes a oportunidade de contemplação de temas pouco abordados na graduação e um aprofundamento maior sobre aqueles já conhecidos, aperfeiçoando o conhecimento, auxiliando e melhorando a atuação frente às mais diversas situações clínicas.

 Comissão Organizadora

XL SAOJEM - 40ª Jornada Acadêmica de Odontologia “Júlio estrela Moreira" (UFPR) Universidade Federal do Paraná, 2023
Estimation Of Adherance Of Candida Albicans To Different Denture Base Materials And Its Relationship With Denture Stomatitis – An In Vivo Study
Authors: Varun Saini  , Neha saini  , Dr Vaibhav Avnish  , Rohit Mundra  , Varun kumar Saini  , Dr Saurabh Jain
Published: June 2023

Background - Candida albicans  is the most common human oral fungi frequently recovered from the denture surface causing denture stomatitis. Modern treatment approaches suppress the normal host defense mechanisms, alter the normal human microbial flora& allow non bacterial species to become more prevalent in commensal flora.

Aims & Objectives - The objective of the present study was to evaluate the prevalence & incidence of Candida albicans in DPI & Lucitone 199 heat cure acrylic denture wearers & its relationship with denture stomatitis.

Materials & Methods – The study was conducted at our institution wherein  52 edentulous patients enrolled in the study .These patients were randomly assigned to two groups DPI and Lucitone 199 . Dentures were made using the two materials . At three months follow up swab samples were taken from the denture surfaces and sent to lab for culture .

Result – The prevalence of Candida albicans in denture wearers was found to be 23%. The incidence of denture stomatitis was 27%. Prevalence of Candida albicans &  incidence of denture stomatitis was less with Lucitone 199 heat cure acrylic dentures.

Conclusion - Any treatment that we do should not be cause of other pathology. Denture stomatitis falls into such category.  Follow up should be done on a mandatory basis to evaluate the changes & performing necessary modifications.
TMJ regenerative Medicine
Authors: Pallavi
Published: June 2023

AbstractThe temporomandibular joint (TMJ) is an articulation formed between the temporal bone and the mandibular condyle which is commonly affected and course with pain and dysfunctions of the temporomandibular joint. These affections are often so painful during fundamental oral activities that patients have lower quality of life. The treatment of these disorders includes systematically administered drugs (especially non steroid anti-inflammatory drugs and corticoids), physical therapies, and minimally invasive therapies that require intra articular injections. Limitations of therapeutics for severe TMJ diseases have led to increased interest in regenerative strategies combining stem cells, implantable scaffolds and well-targeting bioactive molecules. Recent advances in tissue engineering may provide an alternative to traditional strategies to repair and regenerate the TMJ. To succeed in functional and structural regeneration of TMJ is very challenging. Innovative strategies and biomaterials are absolutely crucial because TMJ can be considered as one of the most difficult tissues to regenerate due to its limited healing capacity, its unique histological and structural properties and the necessity for long-term prevention of its ossified or fibrous adhesions. The ideal approach for TMJ regeneration is a unique scaffold functionalized with an osteochondral molecular gradient containing a single stem cell population able to undergo osteogenic and chondrogenic differentiation such as BMSCs, ADSCs or DPSCs. The key for this complex regeneration is the functionalization with active molecules such as IGF-1, TGF-beta 1 or bFGF. This regeneration can be optimized by nano/micro-assisted functionalization and by spatiotemporal drug delivery systems orchestrating the 3D formation of TMJ tissues. Preceding the current trends in tissue engineering is an analysis of native tissue characterization, toward identifying tissue engineering objectives and validation metrics for restoring healthy and functional structures of the TMJ.
Evaluation of Cymbopogon Citratus as Disinfectant and its Effect on the Dimensional Stability of the Resultant Gypsum Casts: An in Vitro Study.
Authors: Prince Kumar
Published: June 2023

BACKGROUND AND AIM: Proper disinfection of impression is probably the most important procedure for dental lab to render it safe for further handling without affecting the accuracy of fine details. In light of these intermingling facts, author aimed to 1) investigate the antimicrobial effect of Cymbopogon citratus on selected microorganism colony and 2) the effect of the disinfectant solution on the dimensional accuracy of the resultant gypsum casts. MATERIALS & METHOD: Initially, tropicalgin Alginate was mixed and total of 20 impressions of the alginate and painted with bacterial colonies. Swabs were further subjected to culture and sensitivity tests for predetermined bacterial strains. Alginate impressions were immersed in glutaraldehyde 2% and Cymbopogon Citratus 30% for 10 minutes (ten each). The swabs were wiped on glass Petri dish and inoculated. The colonial growth was transferred to the glass slide for Gram staining which confirmed presence of Staphylococcus aureus, Streptococcus mutans and Candida albicans in control group. Cross-arch distance between 16 and 26 of the poured samples were compared with the cross arch distance in the typhodont teeth using digimatic vernier caliper. RESULT: Statistical analysis was attempted using SPSS version 22.0. The results of dimensional accuracy of 2% Glutaraldehyde (Group A) mean reading was 55.114, Variance =0.00687 and standard deviation were 0.8289 obtained. The results of dimensional accuracy of 30% Cymbopogan Citratus (Group B) mean reading was 55.403, Variance = 0.0268 and standard deviation were 0.16384 obtained. CONCLUSION: Within the limitations of the study, authors concluded that anti-microbial efficacy of 2% Glutaraldehyde was less in comparison to 30% Cymbopogon Citratus on resultant selected microorganism in this study and dimensional accuracy was superior in Cymbopogan citratus in comparison to glutaraldehyde.
Effect of Non-Surgical Periodontal Therapy On Anemic Status In Chronic Periodontitis Patients: A Randomized Clinical Case Control Study.
Authors: NANDIGAM ANWESH REDDY
Published: June 2023

ABSTRACT 

Back Ground:  The aim of this current study is to identify the changes in haematological values of subjects with periodontal disease as compared to periodontally healthy individuals and to establish the relationship between chronic periodontitis and anemic status of the patients by correlating the periodontal parameters with haematological values following Nonsurgical Periodontal Therapy.

Methodology:  The present case-control study included hundred subjects, out of which test group included fifty chronic periodontitis. The control group included fifty periodontally healthy subjects. Both periodontal and haematological parameters were assessed for both the groups at baseline and three months who had undergone non-surgical periodontal therapy later for the test group. Ten patients in the test group were excluded from the study and the remaining forty patients completed the study period and hence their results were analysed statistically by employing Mann-Whitney U Test, Wilcoxon Matched Pairs Test, Karl-Pearson’s Correlation Coefficient Method.                           

Results: The results in this study have shown that by treating the periodontal inflammation, it has led to a significant improvement in erythrocyte count as well as haemoglobin levels. Following NSPT in the test group, out of all the haematological values, ESR has shown major statistically significant difference along with TRBC and Hb. Whereas there was much less significant improvement in the remaining values viz. PCV, MCV, MCH, MCHC.

Conclusion:  The results of this study have clearly demonstrated that the treatment of periodontitis condition does lead to the improvement in various haematological values. Hence, its proven that chronic generalized periodontitis could lead to anemia of chronic disease in the long run. Thereby it is advisable that we should monitor the anemic status of the patients on a regular basis and advice the patients accordingly.
E-banking quality and customer loyalty: The mediating role of customer satisfaction
Authors: Habtemichael Redda Ephrem
Published: June 2023

Attaining customer satisfaction and loyalty is seen as a prerequisite for successful bank management. The purpose of the study is to identify and explain the mechanism through which e-banking quality is related to loyalty by including satisfaction as a mediating variable in South Africa. The study adopts a descriptive research design and a quantitative mediation analysis. The data collected through SurveyMonkey comprised a sample of 310 participants who used online banking. The results of the mediation analysis confirm that e-banking quality has a considerable and positive effect on customer satisfaction, which in turn has a significant and positive effect on loyalty in e-banking. The direct effect of e-banking quality on loyalty is also confirmed. Furthermore, the study’s findings show that the quality of e-banking has a significant and favorable indirect effect on loyalty, as mediated by customer satisfaction. Because the direct effect of e-banking quality on loyalty remained significant after the satisfaction intervention/mediation in the model, the mediation is regarded as partial. The findings of this study offer essential marketing guidance for banking professionals who design and implement e-banking solutions for their customers.
Does altruistic impact investment decision? evidence from Indonesia
Authors: Amalia Farah , Putriani Adellia , Mangifera Liana , Suhardjo Yohanes
Published: June 2023

Purpose - The purpose of this study was to examine the effect of altruistic and egoistic as behavioral variables on socially responsible investment decision. This paper also investigates the aspects that investors consider the most in making decisions.Method - A total of 108 sample respondents were selected using a purposive sampling technique. The criteria used are capital market study group students who have at least one ethical stock in their portfolio. Conjoint and regression analysis were involved to conduct the research.Result - The results showed that the investment attributes that investors prioritize are industry focus followed by return and risk. Furthermore, the most preferred industry focus is ‘sustainable asset’ followed by ‘no focus’ and ‘arms and defense’. Investment preferences in sustainable assets are based on the altruistic value of investors. Altruism has been shown to have a significant positive effect on investors' decisions to invest their funds in stock which belong to socially responsible investment. On the other hand, the egoistic value has a significant negative effect on the decision to invest in socially responsible investment.Implication - By looking at the research result, companies as stock issuers may consider to create or make their stock sustainable. This research would be beneficial for investment analysts or consultants in providing advice for their clients.Originality - This research uses altruistic and egoistic variables as psychological variables in investment decisions. In addition to using behavioral finance, it also involves value-belief-norm theory to explain the phenomena and discuss altruistic value in Islam perspective.
Spatio-temporal evaluation of water-energy-food nexus system risk from the provincial perspective: A case study of China
Authors: Ding Tonghui , Chen Junfei
Published: June 2023

This study first defined the concept of the water–energy–food nexus system risk (WEF-R). Then, the WEF-R evaluation index system was established from three aspects: stability, coordination, and sustainability subsystems. Finally, the set pair analysis-variable fuzzy set model was used to evaluate the risk levels of subsystems, and the risk matrix was applied to assess provincial WEF-R levels in China from 2009 to 2018. The results showed that the stability subsystem had the greatest influence on provincial WEF-R, followed by the sustainability subsystem. The provinces with a higher risk of the stability subsystem and lower risk of the sustainability subsystem were mainly centralized in southeast coastal and central regions, which were consistent with the provinces with better socio-economic development. The provinces with lower risk of the stability subsystem and higher risk of the sustainability subsystem were mainly concentrated in northwest regions, which correspond with the provinces with better natural resources endowment but lower socio-economic development. As for the temporal evolution of risk levels, the risk levels of the coordination and sustainability subsystems showed downward trends during the study period, while the risk level of the stability subsystem displayed a small fluctuation, and the provincial WEF-R level in China presented a decreasing trend.
A Banana-like Ni-MgO Solid Solution Catalyst Derived from Bimetallic
Ni-Mg@MOFs for Hydrogenation of Nitroarenes
Authors: Li Weizuo , Fu Rui , Luo Xue , Wang Xin
Published: June 2023

:

The design and synthesis of an efficient Ni-MgO solid solution catalyst
with specific morphology for the hydrogenation of nitroarenes is highly required. In this
work, a banana-like Ni-MgO solid solution incorporation of carbon catalyst (termed as
Ni/MgO-C) has been synthesized via a MOFs-templating strategy for one-step pyrolysis of
bimetallic Ni-Mg@MOFs.

:

The developed Ni/MgO-C catalyst was applied to the hydrogenation of nitroarenes
reaction, which exhibited good performance for the hydrogenation of nitroarenes to the corresponding
arylamines.

:

The Ni-Mg@MOFs served as a precursor for the preparation of a solid solution catalysts
that could improve the dispersion of Ni species, reduce the size of metallic Ni, and strengthen the Ni-MgO
interaction, enhance the transfer of electron density. All of these are beneficial for improving the performance of
the hydrogenation process.

:

This MOFs-templating strategy may provide a facile method for the synthesis of Ni-MgO solid solution
catalyst for other hydrogenation reactions.
A Rare Combination of Breast, and Thyroid Carcinoma, with Superadded
COVID-19 Infection in Mother: Struggle of a Doctor as a Daughter –
Case Report
Authors: Kumar Naina
Published: June 2023

Introduction:

COVID-19 pandemic has severely affected the diagnosis and management of
cancer patients to a large extent, with many patients being diagnosed at a later stage, and many are not
able to get appropriate treatment. Furthermore, cancer patients are more prone to suffer from severe
COVID-19 infection and its associated morbidity and mortality. Breast cancer is one of the commonest
cancers affecting women worldwide and its number is projected to increase sharply in the post-
COVID-19 era due to a serious fall in screening modalities, as patients stopped reporting to the hospital
because of lockdown, movement restrictions, and fear of contracting the infection.

Case Presentation:

The present case report briefs a mother's sufferings and the impact it has on a
daughter who is a doctor herself. It reports a rare combination of two primaries in the breast and thyroid
in an asymptomatic patient with a rare mutation of the BLM gene detected incidentally. The patient
was successfully operated on for stage IB ductal carcinoma breast with hemithyroidectomy and
was put on chemotherapy with Cyclophosphamide 1000mg (600mg/m2) and Doxorubicin 100 mg
(60mg/m2) per cycle on day one every fortnightly followed by four cycles of Paclitaxel 175mg/m2
every fortnightly. After the second cycle, the patient developed severe neutropenia and COVID-19 infection
with atypical symptoms that severely involved her lungs, leading to the loss of the patient.

Conclusion:

With the onset of the COVID-19 pandemic, thousands of cancer patients have lost their
lives, not due to cancer directly but due to failed early detection, treatment, loss of follow-up, and superadded
severe COVID-19 infection.
Unlocking Delivery Strategies for mRNA Therapeutics
Authors: Luo Zhiyuan , Chen Yangchao
Published: June 2023

mRNA emerged as an attractive therapy modality with the development of mRNA
structure engineering techniques and delivery platforms. mRNA therapeutics, applied for vaccine
therapy, protein replacement therapy, and chimeric antigen receptor (CAR) T cell-based therapy,
has shown huge potential in treating a wide range of diseases, such as cancer and rare genetic diseases,
with successful and exciting preclinical and clinical progress. In mRNA therapeutics, a potent
delivery system is key to the success of its application for disease treatment. Herein, different
types of mRNA delivery strategies, including nanoparticles produced from lipid or polymer materials,
virus-based platforms, and exosome-based platforms, are mainly focused.
Electrocatalysis by Graphene Materials
Authors: Alex Kevin V. , Gokulakrishnan J. , Kamakshi K. , Silva J.P.B. , Sathish S. , Sekhar K.C.
Published: June 2023

Recently, graphene-based materials have attracted significant attention from
scientific and industrial communities due to their potential applications in various
electrochemical energy conversion technologies. Since pure graphene is
electrochemically inert despite its outstanding versatile properties, different strategies
are employed to modify the graphene to enhance its electrochemical activity. In this
chapter, first, we discuss the basics of electrocatalysis and then the recent advances in
electrocatalysis by graphene-based materials. Electrocatalytic activities of non-metal
doped graphene, graphene-based 2D heterostructures, and graphene-plasmonic
nanostructures have drawn particular attention. The challenges and future prospects of
graphene-based electrocatalysts are also highlighted.
CURRENT TREND IN KENYA'S TEA INDUSTRY
Authors: Koros Dominic Kiprutoh , Tshelang Clerance Kelefhile , Masangano Mayamiko
Published: June 2023

The tea industry in Kenya is comparably similar to other production firms – ups and downs surround its operations day in and day out. Several previous research studies have majored in Kenya's tea industry, with the aim of studying what surrounds tea production. In this project, the focus is to establish a concrete comprehension pertaining current status of Kenya’s tea, the global trade of Kenyan-based tea, the impacts of COVID-19 on the tea industry, and the sector’s possible countermeasures. To fully capture the requirements of the study, helpful resources were obtained through rigorous retrieval of data from the Ministry of Agriculture, Tea Board of Kenya Statista, KNBS, and Kenya Tea Development Agency (KTDA) websites. Also, other sources of information that stood to provide relevant data for this purpose were considered eligible for the research study. The key findings obtained from the studied resources established the following: To start with, Kenya is a significant player at the international level regarding the production and exportation of tea products. India, Kenya, China, and Sri Lanka are the four countries dominating the world in the tea industry. Secondly, the current performance of Kenya’s tea has deteriorated. Third, tea production and trade in Kenya have become resilient during the pandemic coronavirus disease 2019 (COVID-19). Lastly, implementing appropriate strategies is required to enhance companies' performance.
FACTORS AFFECTING PRODUCTIVITY OF PLANTATION EMPLOYEES AT PT. GREAT GIANT PINEAPPLE, CENTRAL LAMPUNG
Authors: Nuralfya Ayurei , Priatna Wahyu Budi , Burhanuddin Burhanuddin
Published: June 2023

The movement of a company can’t be separated from resources owned by the company. In this case, the success of a company is strongly supported by the human resources in it. Good work management in a company can be reflected in the creation of a balance between labor productivity and the demands of the company's progress. Therefore, this research aims to analyze internal and external factors related to the productivity of plantation employees in the agroindustrial company engaged in the production and largest pineapple exporter in Indonesia, PT. Great Giant Pineapple. This research also aims to analyze factors most influence productivity of plantation employees. This research was conducted by taking data from 220 respondents of plantation employees using the convenience technique method. Furthermore, data processing and validity and reliability test were carried out using SPSS 17 Ver 25.0, and quantitative tests were processed using SmartPLS to analyze the structural equation model using SEM-PLS. Based on the result, there are six factors that influence the productivity of plantation employees: motivation, competence, work environment, discipline, work quality, and incentive, which are then tested on employee productivity factors. The factor of motivation, competence, discipline, work quality, and incentive have a significant effect on the productivity of employees, while the work environment factor has an insignificant effect on the productivity of employees.
ADOPTION OF GOOD AGRONOMIC PRACTICES BY TOMATO FARMERS IN RURAL GHANA: AN APPLICATION OF THE UNIFIED THEORY OF ACCEPTANCE AND USE OF TECHNOLOGY
Authors: Akomdo Charlotte , Bakang John-Eudes Andivi , Tham-Agyekum Enoch  Kwame , Yankyerah Ohene Kwasi , Akese Isaac , Oye Sadat , Prah Stephen
Published: June 2023

This study uses the Unified Theory of Acceptance and Use of Technology framework to analyze tomato farmers' intention and actual use of good agronomic practices (GAPs). Using a structured questionnaire, data were collected from 300 tomato farmers selected through the multi-stage sampling procedure. Data were analyzed using descriptive and inferential statistics. The results reveal the three practices with the highest level of awareness: fertilizer application, weed control, and pest control. The GAPs practiced mostly by the tomato farmers are fertilizer application, row planting, disease control, and weed control. Results of the Tobit regression model show the extent (intention and actual use) of adoption of GAPs by tomato farmers is influenced by the age of the farmer, years spent in school, years in farming, sources of information, membership of farmer groups, availability of market, performance expectation, and social influence. The results from the study also show that among the major challenges affecting the use of GAPs, lack of credit facilities was ranked first. This study recommends that with the aid of Agricultural Extension Agents, farmers should form cooperatives to enable them to get access to financial support and enable extension workers to easily have access to them.
Cálculo de la Efectividad Global del Equipo (OEE) basado en el concepto de gemelo digital bajo un entorno de transformación digital industrial
Authors: Rojas Alvarado Oscar Amaury , Benavidez Johan Felipe , Pascuas Wilmer
Published: June 2023

Este artículo propone un método para calcular el indicador de oee (Eficacia General del Equipo). Esta propuesta se basa en utilizar el concepto de gemelo digital de un equipo para calcular el indicador oee, teniendo en cuenta aspectos relacionados con la transformación digital industrial que requieren las empresas actualmente.
Promoting Pancasila values through local culture: a case study of the Tengger festival of the karo ethnic group for ecotourism development
Authors: Rawanoko Endrise Septina , Sungkawati Endang , Ario Muhammad Fanif
Published: June 2023

Currently, the role of tourism significantly influences the economy of Indonesia. Ecotourism is an environmentally conscious tourism activity that prioritizes the preservation of nature, and empowerment of the local community in terms of social, cultural, and economic aspects, as well as learning and education. In the village of Poncokusumo, the local cultural tradition known as Hari Raya Karo is still preserved to this day. Hari Raya Karo, or Yadnya Karo, is the second major festival after Kasada. This research adopts a qualitative descriptive methodology. The findings from field research encompass the entire series of Hari Raya Karo ceremonies, which can be sequentially described as follows: (1) opening ceremony, (2) sodoran, (3) puja sesanti, (4) andon mangan, and (5) sadranan and tari ojung. On the other hand, the Selamatan Desa ceremony follows the following order: (1) visiting graves, (2) ater tumpeng, (3) tandakan, (4) entertainment, and (5) sadranan. Observing the transition from Hari Raya Karo to Selamatan Desa, ritual changes have occurred. Hari Raya Karo is conducted by the entire Tengger community in the Bromo Mountain region, including those practicing Islam, Hinduism, Buddhism, and Christianity, both in Brang Wetan (Probolinggo and Lumajang Regencies) and Brang Kulon (Malang and Pasuruan Regencies). Conversely, the Selamatan Desa ceremony is explicitly carried out by the residents of Poncokusumo village.
PENGEMBANGAN MEDIA PEMBELAJARAN BIOTEKNOLOGI MELALUI VIDEO TIK TOK
Authors: Wati Sinta Rahma
Published: June 2023

Penelitian ini dilakukan bertujuan mengetahui prosedur dan menganalisis kualitas pengembangan  media pembelajaran mata pelajaran Biologi materi Bioteknoligi video Tik Tok. Jenis penelitian ini adalah penelitian Research and Development yang didasarkan pada data lapangan yang telah dikumpulkan. Pada penelitian ini dilakukan analisis terhadap respon dan tingkat kepahamanan siswa terhadap materi Bioteknologi sebelum dan setelah menonton kumpulan video pembelajaran materi tersebut melalui aplikasi Tik Tok. Teknik pengumpulan data penelitian ini yaitu dengan angket yang mengukur terhadap respon tingkat kepahamanan siswa terhadap materi Bioteknologi sebelum dan sesudah menonton video Tik Tok.Kata Kunci: media pembelajaran, materi Bioteknologi, aplikasi Tik Tok
Autotesting an Embedded Reconfigurable Computing System
Authors: Martyshkin A. I. , Kiryutkin I. A. , Merenyasheva E. A.
Published: June 2023

Purpose of research. The main idea is to build a mathematical testing model that integrates different aspects of an embedded reconfigurable computing system and its interactions. This model provides an efficient representation of test scenarios and allows to analyse the dynamics of the reconfigurable computing system during testing. The paper also discusses methods for generating test sequences based on the properties of a finite state machine.Methods. The authors propose to represent the autotest as a finite state Mile machine, where states serve to store information about the current state of an embedded reconfigurable computing system. The input signal is the interaction with the system and the output signal is the system's response to the input signal. This approach allows to formalize the testing process and simplify the analysis of possible problems.Results. This paper discusses the application of automata theory in the context of automated testing of embedded reconfigurable computing systems. Automata theory provides effective methods and tools for analysis and simulation of discrete dynamic systems, which makes it suitable for automated testing tasks.Conclusion. The results show that the use of automata theory can significantly improve the quality and efficiency of automated testing of embedded reconfigurable computing systems. This approach provides a deeper analysis of the system and allows to detect and prevent potential problems that may arise during its operation.
Characterization of wide-bandgap layers in laser structures based on CdHgTe
Authors: Ruzhevich M.S.  , Mynbaev K. D.  , Bazhenov N.L.  , Dorogov M.V.  , Dvoretskii S.A.  , Mikhailov N.N.  , Remesnik V.G.  , Uzhakov I.N.
Published: June 2023

The results of a study of the optical and structural properties of wide-bandgap (x~0.7) layers in laser heterostructures based on CdxHg1-xTe solid solutions grown by molecular beam epitaxy on (013)GaAs substrates, as well as epitaxial films similar to these layers in chemical composition, are presented. It is shown that the position of the maximum of the photoluminescence spectrum and the nature of its temperature shift are related to the disordering of the composition of the solid solution. Shallow and deep acceptor levels were found in the bandgap. The possible influence of disordering and acceptor levels in laser structures on the energy spectrum of carriers is discussed. Keywords: CdHgTe, laser structures, photoluminescence, defects, structural properties.
Mutual transformation of the light waves by contra-directional mixing on reflection holographic grating in Bi-=SUB=-12-=/SUB=-SiO-=SUB=-20-=/SUB=- crystal of (001)-cut
Authors: Naunyka V. N.  , Makarevich A. V.
Published: June 2023

The features of energy exchange during the contra-directional mixing of two linearly polarized light waves in a cubic photorefractive Bi12SiO20 piezocrystal of (001)-cut are analyzed. The dependences of the relative intensity of the signal wave on the azimuth of its polarization at the entrance to the crystal during mixing with the reference wave polarized in the plane of incidence are theoretically studied for various crystal orientation angles. The dependence of the relative intensity of the signal wave on the azimuth of its polarization is experimentally studied for the cases when the vector amplitudes of light waves propagating in the crystal are parallel and perpendicular to each other. The calculation is based on the numerical solution of the coupled waves equations with and without taking into account the self-diffraction of the light waves by the reflection holographic grating recorded in the crystal. Based on a comparison of theoretical and experimental data, the influence of self-diffraction on the mutual transformation of light waves during their contra-directional mixing is analyzed. The limits of applicability of the static grating and the dynamic grating approximations for solution of the coupled waves equations are determined. Keywords: Photorefractive crystal, reflection holographic grating, coupled wave equations, self-diffraction.
Effect of High Temperature Annealing on the Physicochemical Properties of systems based on FeSi-=SUB=-x-=/SUB=-
Authors: Nikolichev D.E.  , Kriukov R.N.  , Zdoroveyshchev A.V.  , Kuznetsov Yu. M.  , Zdoroveyshchev D.A.  , Dudin Yu.A.  , Dorokhin M. V.  , Skrylev A.A.
Published: June 2023

It has been established that the physicochemical properties of structures based on iron silicides formed by ion implantation of iron ions into silicon depend significantly on the time of subsequent high-temperature annealing. Objects with different geometric parameters are formed on the surface and the roughness increases. Annealing at 1000oC in an Ar atmosphere is accompanied by a decrease in the content of the Fe-Si chemical bonds during the first 60 seconds. The reason for the drop in thermal conductivity with increasing annealing temperature is the formation of silicide complexes. Keywords: iron silicide, thermoelectric, ion implantation, chemical composition, X-ray photoelectron spectroscopy.
Assessing the Effectiveness of mHealth Interventions for Diabetes and Hypertension Management in Africa: Systematic Review and Meta-Analysis
Authors: Aovare Pearl , Abdulai Kasim , Laar Amos , van der Linden Eva L , Moens Nicolaas , Richard Edo , Moll van Charante Eric P , Agyemang Charles
Published: June 2023

Background

Mobile health (mHealth) interventions are effective in improving chronic disease management, mainly in high-income countries. However, less is known about the efficacy of mHealth interventions for the reduction of cardiovascular risk factors, including for hypertension and diabetes, which are rapidly increasing in low- and middle-income countries.

Objective

This study aimed to assess the efficacy of mHealth interventions for diabetes and hypertension management in Africa.

Methods

We searched PubMed, Cochrane Library, Google Scholar, African Journals Online, and Web of Science for relevant studies published from inception to July 2022. The main outcomes of interest were changes in hemoglobin A1c (HbA1c), systolic blood pressure, and diastolic blood pressure. The random or fixed effect model was used for the meta-analysis, and the I2 statistic was used to gauge study heterogeneity. Z tests and P values were used to evaluate the effect of mHealth interventions on HbA1c and blood pressure levels.

Results

This review included 7 studies (randomized controlled trials) with a total of 2249 participants. Two studies assessed the effect of mHealth on glycemic control, and 5 studies assessed the effect of mHealth on blood pressure control. The use of mHealth interventions was not associated with significant reductions in HbA1c levels (weighted mean difference [WMD] 0.20, 95% CI −0.40 to 0.80; P=.51) among patients with diabetes and systolic blood pressure (WMD −1.39, 95% CI −4.46 to 1.68; P=.37) and diastolic blood pressure (WMD 0.36, 95% CI −1.37 to 2.05; P=.69) among patients with hypertension. After conducting sensitivity analyses using the leave-one-out method, the Kingue et al study had an impact on the intervention, resulting in a 2 mm Hg reduction in systolic blood pressure (WMD −2.22, 95% CI −3.94 to −0.60; P=.01) but was nonsignificant for diastolic blood pressure and HbA1c levels after omitting the study.

Conclusions

Our review provided no conclusive evidence for the effectiveness of mHealth interventions in reducing blood pressure and glycemic control in Africa among persons with diabetes and hypertension. To confirm these findings, larger randomized controlled trials are required.
Health Promotion in Popular Web-Based Community Games Among Young People: Proposals, Recommendations, and Applications (Preprint)
Authors: Martin Philippe , Chapoton Boris , Bourmaud Aurélie , Dumas Agnès , Kivits Joëlle , Eyraud Clara , Dubois Capucine , Alberti Corinne , Le Roux Enora
Published: June 2023

BACKGROUND

Young people use digital technology on a daily basis and enjoy web-based games that promote social interactions among peers. These interactions in web-based communities can develop social knowledge and life skills. Intervening via existing web-based community games represents an innovative opportunity for health promotion interventions.

OBJECTIVE

The aim of this study was to collect and describe players’ proposals for delivering health promotion through existing web-based community games among young people, elaborate on related recommendations adapted from a concrete experience of intervention research, and describe the application of these recommendations in new interventions.

METHODS

We implemented a health promotion and prevention intervention via a web-based community game (Habbo; Sulake Oy). During the implementation of the intervention, we conducted an observational qualitative study on young people’s proposals via an intercept web-based focus group. We asked 22 young participants (3 groups in total) for their proposals about the best ways to carry out a health intervention in this context. First, using verbatim transcriptions of the players’ proposals, we conducted a qualitative thematic analysis. Second, we elaborated on recommendations for action development and implementation based on our experiences and work with a multidisciplinary consortium of experts. Third, we applied these recommendations in new interventions and described their application.

RESULTS

A thematic analysis of the participants’ proposals revealed 3 main themes and 14 subthemes related to their proposals and process elements: the conditions for developing an attractive intervention within a game, the value of involving peers in developing the intervention, and the ways to mobilize and monitor gamers’ participation. These proposals emphasized the importance of interventions involving and moderating a small group of players in a playful manner but with professional aspects. We established 16 domains with 27 recommendations for preparing an intervention and implementing it in web-based games by adopting the codes of game culture. The application of the recommendations showed their usefulness and that it was possible to make adapted and diverse interventions in the game.

CONCLUSIONS

Integrated health promotion interventions in existing web-based community games have the potential for promoting the health and well-being of young people. There is a need to incorporate specific key aspects of the games and gaming community recommendations, from conception to implementation, to maximize the relevance, acceptability, and feasibility of the interventions integrated in current digital practices.

CLINICALTRIAL

ClinicalTrials.gov NCT04888208; https://clinicaltrials.gov/ct2/show/NCT04888208