bluuebunny/crossref_metadata_2025 huggingface dataset:
Generalized binary spiral zone plates with a single focus obtained by feedforward neural network
Authors: Zang Huaping , Wang Yiming , Zheng Chenglong , Zhou Weimin , Wei Lai , Cao Leifeng , Fan Quanping
Published: August 2023

Traditional spiral zone plates (SZPs) have been widely used to generate optical vortices, but this structure suffers from multiple focuses. To eliminate high-order foci, the current method is to design a binary structure that has a sinusoidal transmittance function along the radial direction. With the rapid development of artificial neural networks, they can provide alternative methods to design novel SZPs with a single focus. In this paper, we first propose the concept of generalized binary spiral zone plates (GBSZPs), and train a feedforward neural network (FNN) to obtain the mapping relationship between the relative intensity of each focus and the structural parameters of GBSZPs. Then the structural parameters of GBSZPs with a single focus were predicted by the trained FNN. It is found by simulations and experiments that the intensities of high-order foci can be as low as 0.2% of the required first order. By analyzing the radial transmittance function, it is found that this structure has a different distribution function from the previous radial sinusoidal function, which reveals that the imperfect radial sinusoidal form also can guide the design of binary zone plates to eliminate high-order foci diffraction. These findings are expected to direct new avenue towards improving the performance of optical image processing and quantum computation.
Recognition of the orbital-angular-momentum spectrum for hybrid modes existing in a few-mode fiber via a deep learning method
Authors: Zhao Hua , Xu Jiannan , Hao Yuanyuan , Xu Jiayang , Lu Huali , Hao Hui , Zhao Ting , Li Pengfei , Wang Peng , Li Hongpu
Published: August 2023

In this study, we theoretically and experimentally demonstrate that the convolutional neural network (CNN) in combination with the residual blocks and the regression methods can be used to precisely and quickly reconstruct the OAM spectrum of a hybrid OAM mode no matter how the consistent OAM modes have the same or different order indices in both the azimuthal and the radial direction. For cases of the simulation testing, the mean errors of all recognized parameters for hybrid OAM modes in a four-mode fiber (4MF) and a six-mode fiber (6MF) are smaller than 0.003 and 0.008, respectively. To the best of our knowledge, this is the first time that all the OAM modes, probably existing in the core of 4MFs or 6MFs, can be precisely and quickly recognized from intensity distribution of the hybrid OAM mode itself via the deep learning method.
Cloud-basierte KI-Anwendungen für Natural Language Processing: Marktüberblick und Vorstellung von typischen Anwendungsfällen für den Mittelstand
Authors: Pröhl Thorsten , Baumgartner Sabrina , Zarnekow Rüdiger
Published: August 2023

Die Digitalisierung von Unternehmen schreitet voran und Künstliche Intelligenz (KI) ist längst nicht mehr nur ein Megatrend von morgen, sondern bereits im vielfältigen Einsatz. Große Unternehmen setzen bereits Lösungen ein, die auf Künstlicher Intelligenz basieren, um ihre Geschäftsprozesse sowie Abläufe zu automatisieren und zu optimieren. Um dem zunehmenden Wettbewerbsdruck standhalten zu können, müssen deshalb auch mittelständische Unternehmen mehr und mehr auf KI-Lösungen setzen. Ein Anwendungsfeld von KI stellt das Natural Language Processing dar, welches vielversprechende Möglichkeiten zur Automatisierung und Optimierung von Geschäftsprozessen von mittelständischen Unternehmen bereithält. KI-Anwendungen aus der Cloud bieten dabei den Vorteil, dass keine eigenen KI-Modelle entwickelt werden müssen, sondern auf bereits trainierte Modelle zurückgegriffen werden kann. Das erlaubt auch mittelständischen Unternehmen, die keine eigene Machine Learning Abteilung besitzen, KI in ihren Geschäftsprozessen einzusetzen. Im vorliegenden Beitrag werden typische Anwendungsfälle für den Mittelstand beschrieben und Anbieter cloud-basierter KI-Anwendungen für NLP übersichtsartig in Form eines Marktüberblicks präsentiert. Um den Mittelstand bei der Einführung von KI-Anwendungen zu unterstützen, werden typische Herausforderungen skizziert und ein Vorgehen zur Implementierung vorgeschlagen.
The psychosocial burden of women seeking treatment for breast and cervical cancers in Ghana’s major cancer hospitals
Authors: Okyere Asante Patience Gyamenah , Owusu Adobea Yaa , Oppong Joseph Ransford , Amegah Kingsley E. , Nketiah-Amponsah Edward
Published: August 2023

Background

Breast and cervical cancers remain the most common cancers and the leading cause of cancer deaths in Ghana. Non-communicable diseases such as cancers, have been associated with psychological burdens such as anxiety and depression disorders as well as severe mental disorders such as bipolar disorder. As such the World Health Organisation has noted that mental health and well-being are crucial in reducing the NCD burden.

Methods

A convergent mixed method approach was used to ascertain the psychosocial burden of breast and cervical cancer patients who sought treatment in three major cancer hospitals in Ghana. Primary data were collected using a questionnaire and an interview guide from 298 breast and cervical cancer patients seeking treatment at the Korle-Bu and Komfo Anokye Teaching Hospitals as well as the Sweden Ghana Medical Centre. Qualitative analysis was done using thematic content analysis while quantitative analysis was done using logistic regression.

Results

The findings of the study showed that patients not only battled with psychological burdens such as anxiety, depression, pain, stigma, fear of death and loss of spouses but also struggled with physical, social, and dietary restrictions. Patients with low educational levels and income status, retired or unemployed, and/or had larger household sizes suffered more psychosocial burdens.

Conclusion

There is a need for liaison psychiatrists and health psychologists to assist oncologists to provide psychological support such as free and routine counselling services for cancer patients and their caregivers. Educational campaigns on mainstream and social media need to be intensified to demystify the stigma surrounding cancers in Ghana.
Structural bioinformatics studies of bacterial outer membrane beta-barrel transporters and their AlphaFold2 predicted water-soluble QTY variants
Authors: Sajeev-Sheeja Akash , Smorodina Eva , Zhang Shuguang
Published: August 2023

Beta-barrel outer membrane proteins (OMP) are integral components of Gram-negative bacteria, eukaryotic mitochondria, and chloroplasts. They play essential roles in various cellular processes including nutrient transport, membrane stability, host-pathogen interactions, antibiotic resistance and more. The advent of AlphaFold2 for accurate protein structure predictions transformed structural bioinformatic studies. We previously used a QTY code to convert hydrophobic alpha-helices to hydrophilic alpha-helices in over 50 membrane proteins with all alpha-helices. The QTY code systematically replaces hydrophobic leucine (L), isoleucine (I), valine (V), and phenylalanine (F) with hydrophilic glutamine (Q), threonine (T), and tyrosine (Y). We here present a structural bioinformatic analysis of five outer membrane beta-barrel proteins with known molecular structures, including a) BamA, b) Omp85 (also called Sam50), c) FecA, d) Tsx, and e) OmpC. We superposed the structures of five native beta-barrel outer membrane proteins and their AlphaFold2-predicted corresponding QTY variant structures. The superposed structures of OMPs and their QTY variants exhibit remarkable structural similarity, as evidenced by residue mean square distance (RMSD) values between 0.206Å to 0.414Å despite the replacement of at least 22% (Transmembrane variation) of the amino acids in the transmembrane regions. We also show that native outer membrane proteins and QTY variants have different hydrophobicity patches. Our study provides important insights into the differences between hydrophobic and hydrophilic beta-barrels and validates the QTY code for studying beta-barrel membrane proteins and perhaps other hydrophobic aggregated proteins. Our findings demonstrate that the QTY code can be used as a simple tool for designing hydrophobic proteins in various biological contexts.
Psychological Capital and Teacher Well-Being
Authors: Zewude Girum Tareke
Published: August 2023

Az ezredfordulót követően a nemzetközi pedagóguskutatásokban növekvő tendenciát mutatnak a jóllétkutatások, ugyanakkor e kiemelt szakmai jelentőséggel bíró téma nem minden országban kutatott. A disszertáció célja kettős: a stresszkezelés és a szakmai motiváció közvetítő szerepének vizsgálata az etióp felsőoktatásban oktató pedagógusok pszichológiai tőkéjének és jóllétének alakulásában, majd a pozitív pszichológia keretrendszerében egy integrált pedagógus jóllétmodell fejlesztése. A kvantitatív szemléletű keresztmetszeti kutatás négy, egymásra épülő empirikus fázisból áll, összesen N=3.517 egyetemi oktató bevonásával: (1) a pszichológiai tőke kérdőív (PCQ-12; Luthans et al., 2007), a pedagógusjóllét skála (TWBS; Collie et al., 2015), és a szakmai munkafeladat motivációs skála (WTMST; Fernet et al., 2008) adaptációja és kultúraközi validációja N=1.117 fős mintán; (2) etióp felsőoktatási környezetben pszichometriailag helytálló mérőeszközökkel a szakmai munkafeladattal kapcsolatos motiváció mediációs szerepének meghatározása a pszichológiai tőke és pedagógusjóllét viszonylatában N=596 fős mintán; (3) a stresszel való megküzdés kérdőív (CWS-Q; Rabenu et al., 2016) adaptációja és kultúraközi validációja, majd a faktorok mediációs szerepének igazolása a pszichológiai tőke és a pedagógusjóllét viszonylatában N=836 fős mintán; (4) a pszichológiai tőke és pedagógusjóllét faktorainak együttes vizsgálata mediációs szempontból a munkafeladat motiváció és a stresszel való megküzdés viszonylatában N=968 fős mintán. A válaszadók kiválasztása rétegzett mintavétellel történt, az adatok statisztikai elemzésére az IBM SPSS 26 és AMOS 26 szoftvereket használtunk. Az eredmények többnyire megerősítik a szakirodalomból ismerteket, az esetleges eltérések kulturális és intézményi sajátosságokkal magyarázhatók. Mivel a mediációs funkció minden esetben bizonyítást nyert, a kutatási eredményekre épülve lehetséges az egyetemi oktatók jóllétének javítása a pozitív pszichológia eszköztárával, továbbá megküzdési és motivációs stratégiáik fejlesztése.
Toxicity of Bacillus sp. (Bacillales: Bacillaceae) on the fungus gnats, Bradysia aff. ocellaris larvae (Diptera: Sciaridae)
Authors: Duarte Adriane da Fonseca , Duarte Juliano Lessa Pinto , Martins Liliane Nachtigall , Silva Lucas Raphael da , Cunha Nycole de Souza , Leite Fábio Pereira Leivas , Cunha Uemerson Silva da , Bernardi Daniel
Published: August 2023

Bacillus thuringiensis (Bt) Berliner has potential for use in insect management. Its use can be an alternative for the management of Bradysia aff. ocellaris (Comstock), considered one of the main strawberry pests in a soilless system. Therefore, the objective of this work was to evaluate the toxicity of different bacteria on B. aff. ocellaris in laboratory and greenhouse bioassays. The following isolates were used in the experiments: Bacillus circulans (Bc), B. thuringiensis var. oswaldo cruzi (Bto) or B. thuringiensis var. israelensis (Bti) and B. thuringiensis var. kurstaki (Btk) In the laboratory, B. aff. ocellaris larvae showed high susceptibility to Bti isolate (92 % mortality) 14 days after treatment exposure (DAET). In contrast, the isolates Bc, Bto, and Btk showed less than 32 % mortality, not differing from the control treatment (water – 22 % mortality). According to the concentration-response curves the values of lethal concentration LC50 and LC90 were 4 x 106 CFU.mL-1 and 4 x 1015 CFU.mL-1. By applying Bti (4 × 1012 CFU.mL-1) at the base of strawberry plants growing in plastic pots containing commercial plant substrate, a reduction of 26 % in the emergence of B. aff. ocellaris was observed. According to these results, the Bti isolate is considered promising for the formulation of bioinsecticides based on Bt for the management of B. aff. ocellaris in strawberry culture.
Growth-promoting microorganisms in the development of orchid seedlings of Phalaenopsis, Cymbidium, and Dendrobium genera
Authors: Medeiros Lorena Bezerra de , Souza Antonio Maricélio Borges de , Vieira Guilherme Rodrigues , Ferreira Kássia Barros , Campos Thiago Souza , Pivetta Kathia Fernandes Lopes , Rigobelo Everlon Cid
Published: August 2023

The demand for sustainable agricultural production systems is increasing, and using growth-promoting microorganisms in plants has stood out because it decreases or even replaces chemical fertilizer use, reducing production costs. This study aimed to evaluate the response of some microorganisms applied to the seedlings of primary orchids cultivated in Brazil (Phalaenopsis sp. 'Taisuco Swan', Cymbidium atropurpureum, and Dendrobium secundum). The experimental design was completely randomized. There were seven treatments (absence of microorganisms – control, Trichoderma sp. in sodium alginate, Trichoderma sp. in clay, Trichoderma sp. in sodium alginate and clay, Trichoderma sp. in a liquid medium, Azospirillum brasilense + Bacillus subtilis in a liquid medium, and Bacillus pumilus in a liquid medium), four replications, and three plants per plot. The seedlings were grown in a greenhouse and evaluated 190 days after microorganism inoculation. The evaluation of morpho-physiological characteristics differed according to the particularities of each genus. The Bacillus pumilus and Azospirillum brasilense + Bacillus subtilis rhizobacteria in a liquid medium for Phalaenopsis sp. 'Taisuco Swan' and the Trichoderma sp. fungus in a liquid medium for Cymbidium atropurpureum increased seedling growth and development. Azospirillum brasilense + Bacillus subtilis in a liquid medium for the Dendrobium secundum orchid promoted more root biomass. Using beneficial microorganisms in orchid cultivation is promising, and seedling growth and development depend on their inoculation and the morpho-physiological characteristics of each plant.
Analysis and study of the bioelectric production potential of actinomycete and microbial isolates in industrial glass factory wastewater using a microbial fuel cell
Authors: Zadeh Alireza Abdolhossein , Shokri Rasoul , Moaddab Seyyed Reza , Rahnema Mehdi
Published: August 2023

A microbial fuel cell (MFC), a novel technology, is a biochemical catalyzer system that can convert the chemical energy of materials to bioelectric energy. This system can serve as a unique device for the treatment of wastewater. Based on this knowledge, we decided to study the bioenergy production ability of Actinomycete and microbial isolates in industrial glass factory wastewater as the decomposers of organic materials in this wastewater and the generation of Voltage and current in two batches and fed-batch conditions. At the most favorable condition maximum of 1.08 V (current 3.66 mA and power density 2.88 mW/m2), 81.2% chemical oxygen demand was obtained for a fed-batch system. Also, the outcomes of MFC’s essential parameters, for example, pH and TDS, were studied before and after the performance of MFC. The results showed a significant decrease after the operation of the MFC. To realize which Actinomycete were the most powerful bioelectric microorganism, the growth curve and electricity performance of three kinds of Actinomycete was selected. Results showed that the C2 would be more potent because its Voltage of 0.224 V and current of 1.187 mA possessed by it would result in an excellent power density of 141.42 mW/m2.
Noise Pollution Problems Caused By Airports
Authors:   Civil Aviation Training Center Affiliated Institute of Suranaree University of Technology, leknoi Pongpipat , Saowaros Pasakorn ,   Civil Aviation Training Center Affiliated Institute of Suranaree University of Technology., Hwangsuphakitkoson Jareeyakorn ,   Civil Aviation Training Center Affiliated Institute of Suranaree University of Technology.
Published: August 2023

Noise pollution caused by airports is an important long-term problem as the noise level of most airport activities is higher than 85dB (A), which the World Health Organization (WHO) has assigned that a noise level greater than 85dB (A) is considered a dangerous noise affecting quality of life, due to non-standard noise control during operation or inefficient land management. Currently, the number of flights and passenger travel is likely to increase. It may cause more noise pollution and have a wider impact if not properly addressed. Therefore, this academic article aims to study the problems of noise pollution caused by airports including risk activities, future trend, impacts and solutions. It appeared that land use planning in the establishment of the airport and forecasting the upcoming air traffic in the future by taking into account the extent of the impact of noise in the airport vicinity area Including the addition of modern aircraft innovation and seriously implementation of the (International Civil Aviation Organization: ICAO) airport operating standards can help to effectively reduce the impact of noise pollution caused by airports.
Improving Seafood Processing in Small Enterprise: A Case Study of Mixed Fish Sauce Production
Authors:   College Of Industrial Technology   King Mongkut's University of Technology North Bangkok., Cheevapruk Supitcha , Chuangchai Thitima ,   College Of Industrial Technology   King Mongkut's University of Technology North Bangkok, Poompipatpong Chedthawut ,   College Of Industrial Technology  King Mongkut's University of Technology North Bangkok.
Published: August 2023

The seafood industry is economically important and generates high income. Therefore, the government has a policy to push the Thai food industry into a global food hub. This is a good opportunity for Thai seafood industries throughout the supply chain. In increasing the quantity and value of the export of Thai aquatic products. The fish sauce market has been adversely affected by the competition of seasoning powders that can be easily substituted and have good taste. This trend has had a serious impact on the competitiveness of small operators. Therefore, this research focuses on the study of the blended fish sauce production process, which is low price, large market, and high competition. But has a relatively high energy cost by increasing productivity in the brewing process at lower energy costs. The improvement results showed that the energy cost per 1 cycle of mixed fish sauce production decreased from 1,210.65 baht to 536 baht or approximately 0.55 baht / liter to 0.24 baht / liter, which increases the productivity per unit of energy by approximately 56.36%.
Development of a competency integrated cross-scientific curriculum Intelligent electronics to create innovations for industrial technicians Vocational Certificate Program (Vocational Certificate) under the Office of Vocational Education Commission in The Southern Region
Authors:   Faculty of Industrial Education and Technology, Rajamangala University of Technology Srivijaya, Chaleamwong Korrapat , Kheowsakul Nutjired ,   Faculty of Industrial Education and Technology,Rajamangala University of Technology Srivijaya., Boonsong Wasana ,   Faculty of Industrial Education and Technology, Rajamangala University of Technology Srivijaya, Prasongchan Piya ,   Faculty of Industrial Education and Technology, Rajamangala University of Technology Srivijaya.
Published: August 2023

The purpose of this research was to develop a competency-integrated cross-disciplinary curriculum with integrated intelligent electronics competency in order to create innovations for the field of industrial technicians, Vocational Certificate Program (Vocational Certificate) under the Office of Vocational Education Commission in the Southern Region. The research’s objectives are 1) to develop integrated competency-based teaching and learning curriculum intelligent electronics to create innovations for industrial technicians; 2) to access the quality of a competency-integrated cross-disciplinary training course outline aspect of intelligent electronics to create innovations for industrial technicians . The research instruments consisted of a training course, an experimental package, an evaluation form for content congruence with behavioral objectives, and a form to assess the suitability of the training course outline. The statistics used in the data analysis were average analysis, standard deviation, and the IOC conformity index. The research results were as follows: 1) A integrated cross-scientific instructional management model of intelligent electronic competency was consistent between content and behavioral objectives with a mean score of 0.90, and content was consistent with behavioral objectives. Moreover, the assessment’s results for the suitability of the training curriculum outline for integrated intelligent electronics competency in intelligent electronics to create innovations for industrial technicians were: the training content was high, In addition, the duration of the activities was at a high level, and the experimental design technique was at a high level.
The Public Relations Format of King Mongkut’s University of Technology North Bangkok in The Age of Thailand 4.0
Authors:   Office of the President, King Mongkut’s University of Technology North Bangkok, Seewattananpon Khwanruethai , Roopsing Taweesak ,   Faculty of Business Administration, King Mongkut’s University of Technology North Bangkok
Published: August 2023

The objectives of this research are 1) to study the elements of the models for public relations in the fourth industrial revolution. 2) to develop models of public relations for King Mongkut's University of Technology North Bangkok in the fourth industrial revolution and 3) to evaluate models of public relations of King Mongkut's University of Technology North Bangkok in the fourth industrial revolution. The researcher studied from a sample consisting of students, personnel, people, journalists and stakeholders of King Mongkut's University of Technology North Bangkok. Determination of the sample size was done by using the table from Taro Yamane formula at infinite level and using a sample of 400 people. The research instruments consisted of interviews and questionnaires used including average, standard deviation and stepwise multiple regression analysis. The result found that the elements and forms of models of public relations in the fourth industrial revolution consist of the main components and sub-components as following: the organization executives consists of 1) organizational policies and 2) needs to receive information. The organization consists of 1) the models of public relations that are modern and 2) the organizational communication plan. The target group consists of 1) the communication plan of the organization 2) the leadership of the executives 3) the design of public relations and 4) the budget of the organization. Public relations channel consists of 1) public relations news 2) public relations time and 3) expertise of technical personnel and data include (1) public relations success evaluation 2) modernization of technology and 3) corporate communication planning. The results of the evaluation of models of public relations found that both of the appropriateness and the feasibility of applying the model have the highest mean value.
Factors Related to Entrepreneurs Requirements of Home economics Business Students Rajamangala University of Technology Phra Nakorn
Authors:   , Faculty of Home Economics Technology, Rajamangala University of Technology Phra Nakorn., Chantakul Sukunya , Hongrattanavorakit Sakarin ,   Faculty of Home Economics Technology, Rajamangala University of Technology Phra Nakorn., Suksala Somprastana ,   Faculty of Home Economics Technology, Rajamangala University of Technology Phra Nakorn.
Published: August 2023

The purposes of this research were to 1) To study the need of the demand for entrepreneurs in home economics business students, from the Faculty of Home Economics Technology and 2) To survey the relationship between the personal factor and supportive factor and the demand of entrepreneurs in home economics students, from the Faculty of Home Economics Technology, Rajamangala University of Technology Phra Nakorn. By giving queries and questionnaires to 180 Home Economics students from the Faculty of Home Economics Technology, Rajamangala University of Technology Phra Nakorn. The result was found that the demand for entrepreneurs in home economics students is at a high level, The personal factor consisted of gender, major of study and work experiences during the study period was not significantly related to the demand of entrepreneurs in home economics students. The supportive factor consisted of attitudes towards entrepreneurs and the management of teaching and learning, the correlation with the demand for entrepreneurs in home economics students at the 0.05 level. The knowledge about entrepreneurs was not significantly related to the demand of entrepreneurs in home economics students.
Human Resource Management That Affects Organizational Commitment of Employees in The Transportation and Service Industry in The Eastern Region to Support The EEC
Authors:   Faculty of Management Science, Rajabhat Rajanagarindra University Chachoengsao, Pichetsiraprapa Pipat , Philajan Wattana ,   Faculty of Management Science, Rajabhat Rajanagarindra University Chachoengsao, Hansomboon Chanisa ,   Lecturer 6 Expressway Authority of Thailand Bangkok, Kongsong Tanatcha ,   Faculty of Industrial Technology and Management King Mongkut’s University of Technology North Bangkok
Published: August 2023

This research aims to 1) Study the personal factors affecting the organizational commitment of employees in the transportation and service industries in the Eastern region to support the EEC and 2) Study the human resource management that affects the organizational commitment of employees in the transportation and service industries in the eastern region to support the EEC. It is a mixed method research which uses a quantitative research using 300 sets of questionnaires and a qualitative research from 6 interviews Use software packages to analyze data. The results of the research found that 1) Different personal factors affect an employee's corporate commitment depending on the work environment. the existence of the nature of the job mental state at work reward and management within the organization towards the work. and 2) Human resource management that affects the commitment t in the organization by 42.50% caused by the organization having personnel with knowledge and abilities to work. A common opinion was accepted. Has unity among the team and has a good feeling towards colleagues, supervisors, thus reducing resignation from work. All of these effectively affect the commitment of the organization both directly and indirectly.
Factors Affecting Online Learning Behavior During The COVID-19 Epidemic of Students of The Demonstration School of Ramkhamhaeng University
Authors:   Faculty of Education, Ramkhamhaeng University, Charoenkul Prontip
Published: August 2023

The purposes of this research are : 1) To study the personal factors of students in the Demonstration School of Ramkhamhaeng University, 2) to study the system quality factors information quality and the quality of online services, 3) to study the behavior of learning online during the COVID-19 outbreak, and 4) to study the personal factors of the respondents affecting their online learning behavior during the period the spread of the COVID-19 virus. Using questionnaires as a research instrument. The samples use in the research are students who choose to study art learning subject groups elementary school level 1-3, Ramkhamhaeng University Demonstration School number of 150 by quota sampling and the statistics use in the research are frequency, percentage, mean, standard deviation and Chi – Square Test. The research was found that as follows : 1) Most of the students were female not more than 9 years old with a cumulative grade point averaged in the range of 2.51- 3.00 which the course characteristics were practical. However, students used the residence of their parents/relatives. It was a place for using in online learning. 2) System quality factors information quality and the quality of online services. Overall, it was found that the students strongly agreed. When considering each aspect in descending order, it was found that the side with the highest mean was service quality, followed by information quality and the least was system quality. 3) Students' online learning behavior most were using less than 2 times a week. The online class time was between 12.01 - 15.00 hrs. , using the online system for no more than 2 hours per session. However, the equipment used in learning was a notebook and was intending to be used for homework assignments. 4) Student's personal factors affects online learning behavior during the epidemic of COVID-19 statistically significant at the .05. and 5) System quality factor information quality and service quality of online systems affects online learning behavior were during the epidemic of COVID-19 statistically significant at the .05 level.
Effects of COVID-19 on the Autonomic Cardiovascular System: Heart Rate Variability and Turbulence in Recovered Patients
Authors: Taş Sedat , Taş Ümmü
Published: August 2023

Background

COVID-19 may be a risk factor for developing cardiovascular autonomic dysfunction. Data are limited, however, on the association between heart rate variability, heart rate turbulence, and COVID-19. The aims of this study were to evaluate the effect of COVID-19 on the cardiovascular autonomic system in patients with persistent symptoms after recovering from COVID-19 and to determine whether these patients showed changes in ambulatory electrocardiography monitoring.

Methods

Fifty-one adults who had confirmed SARS-CoV-2 infection and presented with persistent symptoms to the cardiology outpatient clinic after clinical recovery between April and June 2021 were included. Patients were prospectively followed for 6 months. The patients were evaluated at the time of first application to the cardiology outpatient clinic and at 6 months after presentation. Ambulatory electrocardiography monitoring and echocardiographic findings were compared with a control group of 95 patients.

Results

Patients in the post–COVID-19 group had significantly higher mean (SD) turbulence onset (0.39% [1.82%] vs −1.37% [2.93%]; P < .001) and lower heart rate variability than those in the control group at both initial and 6-month evaluations. The post–COVID-19 group had no significant differences in echocardiographic findings compared with the control group at 6 months, except for right ventricle late diastolic mitral annular velocity (P = .034). Furthermore, turbulence onset was significantly correlated with turbulence slope (r = −0.232; P = .004), heart rate variability, and the parameters of left (r = −0.194; P=.049) and right (r = 0.225; P = .02) ventricular diastolic function.

Conclusions

COVID-19 may cause cardiovascular autonomic dysfunction. Heart rate variability and turbulence parameters can be used to recognize cardiovascular autonomic dysfunction in patients who have recovered from COVID-19 but have persistent symptoms.
Differential effect of gold nanoparticles on cerebrovascular function and biomechanical properties
Authors: Hunt Ryan D. , Sedighi Omid , Clark Wayne M. , Doiron Amber L. , Cipolla Marilyn J.
Published: August 2023

Human stroke serum (HSS) has been shown to impair cerebrovascular function, likely by factors released into the circulation after ischemia. 20 nm gold nanoparticles (GNPs) have demonstrated anti‐inflammatory properties, with evidence that they decrease pathologic markers of ischemic severity. Whether GNPs affect cerebrovascular function, and potentially protect against the damaging effects of HSS on the cerebral circulation remains unclear. HSS obtained 24 h poststroke was perfused through the lumen of isolated and pressurized third‐order posterior cerebral arteries (PCAs) from male Wistar rats with and without GNPs (~2 × 109 GNP/ml), or GNPs in vehicle, in an arteriograph chamber (n = 8/group). All vessels were myogenically reactive ≥60 mmHg intravascular pressure; however, vessels containing GNPs had significantly less myogenic tone. GNPs increased vasoreactivity to small and intermediate conductance calcium activated potassium channel activation via NS309; however, reduced vasoconstriction to nitric oxide synthase inhibition. Hydraulic conductivity and transvascular filtration, were decreased by GNPs, suggesting a protective effect on the blood–brain barrier. The stress–strain curves of PCAs exposed to GNPs were shifted leftward, indicating increased vessel stiffness. This study provides the first evidence that GNPs affect the structure and function of the cerebrovasculature, which may be important for their development and use in biomedical applications.
Synthesis of cadmium(ii) ion-imprinted composite membrane with a pyridine functional monomer and characterization of its adsorption performance
Authors: Hong Yuwen , Wang Xin , Fu Dongxue , Wang Guifang , Zhao Li , Cheng Huiling
Published: August 2023

Cd(ii) ion was used as template ion, and N,N'-pyridine-2,6-di(2-methacrylamide) was used as the functional monomer. The experimental conditions for the synthesis of Cd(ii) ion-imprinted composite membranes (Cd(ii)-IICMs) were optimized by the surface-imprinting method, and 25 Cd(ii)-IICM1–25 and their corresponding non-imprinted composite membranes (NICM1–25) were prepared. Then, the structures of the optimal membranes Cd(ii)-IICM17 and NICM17 were characterized by scanning electron microscopy, Brunner–Emmett–Teller, thermogravimetric analysis, contact angle analysis, and the effects of different adsorption conditions were studied. The adsorption behavior was analyzed by isothermal adsorption models and kinetic models. The permeation selectivity of Cd(ii)-IICM17 towards Cd(ii) ions was studied. Results of the experiment indicate that Cd(ii)-IICM17 had excellent adsorption properties for Cd(ii) ions with an imprinting factor of 2.15. The adsorption of Cd(ii) ions in solution by Cd(ii)-IICM17 and NICM17 was in accordance with the Freundlich isothermal adsorption model and the pseudo-second-order kinetic model. In addition, in the presence of the competing ions Co(ii), Ni(ii), and Cu(ii), Cd(ii)-IICM17 showed good permeation selectivity for Cd(ii) ions, and the permeation process followed a facilitated permeation mass-transfer mechanism. In summary, the Cd(ii)-IICM17 prepared in this study has good application prospects for the separation and removal of Cd(ii) ions from wastewater.
Systematic review of the long-term effects of postnatal corticosteroids
Authors: Jenkinson Allan C. , Kaltsogianni Ourania , Dassios Theodore , Greenough Anne
Published: August 2023

Background

Dexamethasone administration can reduce bronchopulmonary dysplasia, our objective was to identify long term adverse effects.

Content

A systematic review was performed to determine the childhood and adolescent cardiopulmonary and cognitive effects of dexamethasone systemically administered to preterm infants during neonatal intensive care. Relevant studies were identified by searching two electronic health databases and the grey literature. Spirometry assessments were used as respiratory outcomes, blood pressure and echocardiography assessments as cardiovascular outcomes and cognitive and motor function as cognitive outcomes. From 1,479 articles initially identified, 18 studies (overall 1,609 patients) were included (respiratory n=8, cardiovascular n=2, cognitive n=10); all were observational cohort studies. Dexamethasone exposure was associated with worse pulmonary outcomes in children and adolescents (more abnormal FVC and FEV1:FVC z scores). Dexamethasone exposure was associated in one study with lower IQ scores compared to preterm controls (mean 78.2 [SD 15.0] vs. 84.4 [12.6], [p=0.008]) and in two others was associated with lower total and performance IQ when compared to term controls (p<0.001).

Summary and outlook

Postnatal dexamethasone exposure has a negative influence on pulmonary and cognitive outcomes in childhood and adolescence. Medications with a better benefit to risk profile need to be identified.
Compact slow-light waveguide and modulator on thin-film lithium niobate platform
Authors: Chen Gengxin , Wang Haohua , Chen Bin , Ruan Ziliang , Guo Changjian , Chen Kaixuan , Liu Liu
Published: August 2023

Lithium niobate Mach–Zehnder modulators (MZMs) with compact footprint and fast electro-optics (EO) responses are highly demanded for the next-generation optical interconnect systems. Here, we demonstrate slow-light (SL) effect using a coupled Bragg resonator structure on the thin-film lithium niobate (TFLN) platform, and an ultra-compact SL-MZM with length L of ∼370 μm is also constructed. The fabricated SL waveguides show a large optical passband width of ∼8 nm, an insertion loss of 2.9 dB, and a maximal optical group index of 7.50, corresponding to 3.4 times as large as that of regular TFLN rib waveguide. The fabricated SL-MZM exhibits a large EO bandwidth of >50 GHz in an operating wavelength band of ∼8 nm as well. High-speed OOK transmissions at data rates of 64 Gbit/s and 80 Gbit/s are successfully achieved. To our best knowledge, it is first time to build SL waveguides and compact SL-MZMs with large EO bandwidths of >50 GHz on the monolithic TFLN platform.
Recent progress on corrosion mechanisms of graphene-reinforced metal matrix composites
Authors: Liu Tao , Lyu Weimin , Li Zhicheng , Wang Shengke , Wang Xing , Jiang Jiaxin , Jiang Xiaosong
Published: August 2023

For components serving in high temperature, humidity, and salinity marine corrosive environment, it is vital to analyze the causes of corrosion behavior and corrosion mechanisms. Metal matrix composites (MMCs) are commonly used materials for offshore equipment. In this work, the corrosion factors of MMCs in marine environments are analyzed from the characteristics of high temperature, humidity, and salinity service environment, and the corrosion mechanisms are summarized. Graphene (Gr) has excellent comprehensive properties and great potential for applications in metal protection materials. In recent years, research into Gr anti-corrosive applications encompasses two aspects: pure Gr coatings and Gr composite coatings. Gr applied in MMCs is yet to be extensively studied. Therefore, this study analyzes the corrosion resistance of Gr–metal composites and discusses the corrosion resistance mechanisms of Gr-reinforced MMCs, which provides a reference for the design of Gr-reinforced metal composites and the optimization of corrosion resistance performance. Finally, future development directions for Gr–metal composites are proposed, and the critical factors such as defects, dispersion, content, size, arrangement, interface, and conductivity of Gr in the composites affecting their anti-corrosion properties are discussed.
Approche intégrée d’enseignement avec la littérature jeunesse des compétences en littératie auprès d’élèves ayant une déficience intellectuelle moyenne à sévère
Authors: Beaulieu Judith , Ruberto Noémia , Moreau André C.
Published: August 2023

Les pratiques en littératie documentées auprès des élèves ayant une déficience intellectuelle moyenne à sévère (DIMS) sont peu ou pas décrites dans la littérature scientifique. La description de ces pratiques est pourtant nécessaire puisqu’elle soutient la formation initiale et continue du personnel scolaire et contribue au développement du plein potentiel des élèves ayant une DIMS en matière de littératie. L’objectif du présent article est de décrire l’adaptation de l’approche intégrée d’enseignement de la littératie au moyen de la littérature jeunesse de Morin et al. (2005) auprès d’élèves ayant une DIMS.
Objectifs évalués et contextes de développement de compétences ciblés au sein des bulletins d’élèves ayant une déficience intellectuelle profonde
Authors: Beaulieu Judith , Ruberto Noémia , Labrosse Noury Naomi
Published: August 2023

L’évaluation du développement de compétences de la personne ayant une déficience intellectuelle profonde (DIP) comporte plusieurs défis (Tremblay, 2001). Il existe peu de matériel évaluatif adapté à ces élèves (Wicht et Bielmann, 2012). La tâche de cibler des objectifs individualisés dans leur bulletin incombe aux enseignants. La littérature scientifique montre que les enseignants privilégient souvent l’enseignement de compétences fonctionnelles (Agran et al., 2012). L’objectif du présent article est de décrire les objectifs d’apprentissage documentés dans les bulletins d’élèves québécois ayant une DIP et de décrire les contextes de développement de ces compétences. La discussion permet d’amorcer une réflexion sur l’évaluation et l’enseignement.
Participation à une activité de chorale et retombées en littératie : une étude de cas auprès de trois élèves autistes du primaire ayant une déficience intellectuelle
Authors: Bédard-Bruyère Flavie , Bolduc Jonathan , Després Jean-Philippe , Julien-Gauthier Francine
Published: August 2023

Les interventions musicales sont de plus en plus utilisées auprès d’enfants autistes pour les soutenir dans leur développement (Geretsegger et al., 2014). Cet article présente, sous la forme d’une étude de cas, les retombées d’une activité parascolaire de chorale auprès de trois élèves autistes du primaire ayant une déficience intellectuelle. Les compétences en littératie des élèves sont documentées à partir de l’analyse des enregistrements vidéos des séances de chorale et d’un entretien semi-dirigé avec l’enseignant de musique. En évoluant dans un nouveau contexte de vie de groupe, les participants semblent avoir mobilisé leurs habiletés de communication et d’interaction sociale. Ils ont également participé activement à l’activité de chorale. Les résultats suggèrent que la chorale pourrait soutenir certaines composantes en littératie d’élèves autistes ayant une déficience intellectuelle.
Répondre aux besoins en littératie des élèves qui présentent un trouble développemental du langage par l’enseignement de routines musique-littératie au primaire : actions à poser et défis
Authors: Lessard Andrée , Garneau-Gaudreault Laurie-Ann
Published: August 2023

Le présent article présente une recherche menée auprès de trois enseignantes en adaptation scolaire de première année, dont les élèves présentaient tous un trouble développemental du langage (TDL). Pendant six semaines, elles ont enseigné des routines « musique-littératie ». Un devis qualitatif exploratoire a permis d’identifier les caractéristiques de l’environnement liées à l’enseignement des routines qui constituaient : 1) des actions facilitantes ou 2) des défis pour l’apprentissage en littératie et la participation des élèves présentant un TDL. L’analyse a permis de dégager des pistes d’adaptation à apporter aux routines pour mieux répondre aux besoins des élèves.
L’évaluation de l’accès aux sites web des institutions financières
Authors: Ruel Julie , Duplessis Annie , Mihalache Iulia , Gendron Denis , Normand Claude L.
Published: August 2023

Les institutions financières procèdent à un virage numérique. Or, les personnes en situation de handicap vivent des défis à l’égard de la littératie numérique, car ils sont confrontés à une inégalité d’accès. Une recherche a permis d’évaluer l’accès aux sites web de quatre institutions financières exerçant des activités au Québec. La conceptualisation de l’accès inclusif a servi de cadre d’analyse des résultats de cette évaluation. Les résultats illustrent que le virage numérique actuel crée des obstacles à l’accès inclusif laissant pour compte les personnes en situation de handicap (PSH), dont les personnes présentant une déficience intellectuelle. Des recommandations exposent entre autres la nécessité pour les institutions financières d’outiller et de former davantage leur personnel afin de mieux instruire et de soutenir davantage les personnes utilisatrices des services numériques.
Grille d’observation des premières compétences en littératie d’élèves en situation de handicap : recherche-développement et première étape de validation
Authors: Moreau André C. , Tremblay Karine N.
Published: August 2023

L’apprentissage des compétences en littératie, volet langage oral et écrit, représente un vecteur de réussite scolaire et sociale pour tous les apprenants, dont les élèves en situation de handicap découlant d’une déficience intellectuelle ou d’un déficit du langage. Pour le personnel, l’observation des acquis et de la progression des apprentissages des compétences essentielles à lire et à écrire pour planifier et réguler les interventions représentent un défi. L’objectif est de présenter une recherche-développement d’une grille d’observation aux fins de l’évaluation formative-régulative en enseignement des premières compétences en littératie auprès de ces élèves. La discussion ouvre sur les retombées pratiques, les limites et aussi les pistes de recherche.
Bilan des contributions et retombées perçues de l’implantation d’une communauté de pratique auprès d’une équipe-école
Authors: Tremblay Karine N. , Philion Ruth , Moreau André C. , Ruel Julie , Morales Ernesto , Feliziani Maryse , Garneau-Gaudreault Laurie-Ann
Published: August 2023

Le présent article expose les résultats d’un projet pilote de deux années. Par l’entremise d’une communauté de pratique, ce projet visait à soutenir des équipes enseignantes (ÉEs) à développer des pratiques pédagogiques en littératie adaptées à leurs élèves ayant une déficience intellectuelle (DI) moyenne, sévère ou profonde. Les résultats illustrent que peu importe le niveau de sévérité de la DI, il est possible de déployer une diversité de pratiques pédagogiques. Outre ces résultats, des effets positifs sur le développement professionnel des ÉEs et sur les apprentissages des élèves sont présentés.
Création d’un centre de ressources sociocommunautaires pour soutenir le Partenariat-École-Famille-Communauté (P-E-F-C) au Bas-Saguenay : une recherche-action
Authors: Amboulé-Abath Anastasie , Boily Élisabeth , Aubé Karine , Hauchecorne Cécile , Desrosiers Gabrielle , Gobeil Pierre-Luc , Gagnon Jérôme , L'Italien Christian
Published: August 2023

Cet article expose les résultats d’une recherche-action à l’origine de la création d’un centre de ressources sociocommunautaires visant à améliorer le partenariat école-famille-communauté au Bas-Saguenay Sud[1]. Les perceptions recueillies sur la mobilisation des moyens éducatifs disponibles sur le territoire auprès des acteurs scolaires et communautaires poussent à renforcer leurs collaborations et à générer une dépendance réciproque entre l’école et ses partenaires externes.

 

[1] Notre projet de recherche soutenu par le Centre de services scolaire Des Rives-du-Saguenay a bénéficié du soutien financier du Consortium Régional de Recherche en Éducation (CRRE). Nous remercions le professeur Loïc Pulido pour la relecture du texte.
Proposition d’une typologie du vocabulaire scolaire
Authors: Saidane Rihab , Fejzo Anila , Chapleau Nathalie
Published: August 2023

Depuis une vingtaine d’années, définir le vocabulaire scolaire est devenu un enjeu important pour les besoins de la recherche et ceux du milieu scolaire. Différentes typologies ont été proposées par les théoriciens sans aboutir à un réel consensus sur les critères permettant de délimiter ses catégories. Dans ce contexte scientifique, l’objectif du présent article est de proposer une typologie basée sur des critères explicites de discrimination entre les catégories de vocabulaire scolaire. À cet effet, sont décrits la démarche de conception de la nouvelle typologie ainsi que ses apports pour la recherche et les milieux pratiques.