bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparison of Megavoltage Electron Dosimetry Beams in Radiation Therapy Using Different Protocols
Authors: Jomehzadeh Zahra , Jomehzadeh Ali
Published: April 2024

Background: International Atomic Energy Agency (IAEA) and the American Association of Physicists in Medicine (AAPM) have introduced new protocols for the dosimetry of megavoltage electron and photon beams, increasing them to more than five protocols at the beginning of the new decade. Selecting a protocol by medical physicists and acquiring skills for using reference conditions and recommended formulation by each protocol necessitates the recognition of various dosimetry protocols. This study aimed to compare the protocols TRS-277, TRS-381, and TRS-398 of IAEA for megavoltage electron beams used in radiation therapy. Methods: The comparison of TRS-398 with other protocols was done as follows: 1. Measurement and estimation of the absorbed dose of a 6 MeV Neptun 10 linear accelerator through an ionization chamber with parallel NACP plates in water phantom and acrylic. 2- Measurement of the absorbed dose in a 17 MeV Saturn 20 linear accelerator through an ionization chamber with parallel NACP plates in a water phantom. Results: The results indicated that the differences observed between the protocols compared to protocol TRS-398 ranged between -4.9% and 0.2%; the highest difference was related to the 17 MeV electron beam using protocol TRS-277. Conclusion: According to the results, the considerable difference observed in 17 MeV electrons was related to TRS-277 and TRS388 protocols. Given that the calibration ratio of the absorbed dose in the air is used in protocol TRS-277, the difference obtained was related to the application of secondary calibration used in this study.
THE USE OF GENERATIVE ARTIFICIAL INTELLIGENCE IN SOFTWARE TESTING
Authors: V.V. Hnatushenko , I.V. Pavlenko
Published: April 2024

This article explores the potential of using generative artificial intelligence (AI) for software testing, reflecting on both the advantages and potential drawbacks of this emerging technology. Considering the vital role of rigorous testing in software production, the authors ponder whether generative AI could make the testing process more efficient and comprehen-sive, without the need to increase resources. The article delves into the current limitations of this technology, emphasizing the need for continuous exploration and adaptation. It con-cludes with a summation of potential innovative solutions and avenues for future investiga-tion. The paper encourages discussions surrounding the question of fully automated testing and the role of human specialists in the future of QA. It ultimately provides a thought-provoking reflection on the intersection of emerging technologies, and their societal impacts
A complex approach to solving the problem of interaction between a rigid double-connected punch and an elastic half-space
Authors: Zaytseva Tetyana , Zhushman Vladyslav
Published: April 2024

The paper presents an integrated approach based on the principles of system anal-ysis for solving contact problems. We consider the problems of pressing rigid plane sin-gle- and double-connected punches in the form of a non-circular ring into a homogene-ous and isotropic elastic half-space. To obtain an analytical solution, we apply a method based on the use of the development of the simple layer potential for regions close to the ring. Software was developed using C++ to visualize and analyze the results. Finite-element models to reproduce the interaction of a rigid punch with an elastic half-space are built in the ANSYS software environment. An important step is to verify the adequacy of the models, which is carried out, among other things, by comparing the numerical re-sults with the analytical ones. A satisfactory agreement of the numerical modeling results with the analytical ones obtained earlier was achieved. If the punch-elastic half-space system is exposed to difficult natural conditions or an aggressive environment during a certain time of modeling, possible accidental damage or damage that occurs according to a certain law, such as corrosion, is taken into account. That is, under such conditions, the dimensions of the contact zones may change over time and become unknown. A nu-merical base for calculating the punch-elastic half-space system is created for various shapes of punch cross-sections, combining them into special groups. The CLIPS software tool was used to develop and maintain the expert system. The calculation base is trans-ferred to it using a specially created C++ software application. Based on a set of rules and knowledge that have been created and used to solve specific problems, the decision-making process is automated. For each individual computer model, data sets are calcu-lated - normal and tangential stresses at certain points. The cross-sectional shape of the punch is identified in accordance with the criteria defined in the knowledge base. The process of generating the cross-sectional shape of the punch is performed using specially developed software in OpenGL. The cubic spline interpolation is used as a mathematical tool.
Analysis of technological methods of minimizing residual internal stresses at slm
Authors: S. Adjamskiy , A. Kononenko , R. Podolskyi
Published: April 2024

Additive manufacturing (hereinafter – en. AM) is a modern set of technologies that make it possible to quickly and qualitatively create products with a unique geometry that are impossible or difficult to produce by traditional production methods. Currently, re-searchers pay attention to two major areas, namely AM quality systems and the search for new regularities in already well-known materials that were produced in a traditional way. This technology has a number of advantages for the manufacture of aerospace products, but, like all production technologies, this technology has a number of disadvan-tages and problems. Residual internal stresses are one of the features of metal materials produced by layer-by-layer fusion using SLM technology, but they can significantly affect mechanical properties and geometric parameters. Their presence is especially important for AM materials, which inevitably lead to significant internal stresses. In this regard, it is important to minimize residual stresses in the process of manufacturing parts using SLM technology. To prevent deviations in the geometry of the part, it is necessary to take into account the ratio between the density of the specific energy supplied and its absorp-tion during the process. However, it is difficult to predict the optimal technological pa-rameters and strategies for building the SLM process for polycrystalline materials, since the quality of the product depends on a large number of factors. The search for ways of preliminary assessment and the development of measures to reduce residual stresses in the manufacture of parts using SLM technology is an urgent task of modern materials science. Thus, the issue of reducing the influence of internal stresses requires a funda-mental understanding of their influence on the geometric parameters and service charac-teristics of AM materials..
EEG simulation using deep neural networks
Authors: O.A. Inkin , O.V. Pohorielov
Published: April 2024

Electroencephalography (EEG) is a method that measures the spatial distribution of voltage fields on the skin heads and their change over time. It is believed that the reason for this activity is fluctuating sum of excitatory and inhibitory postsynaptic potentials. Application of EEG monitoring methods becomes everything more important in the treatment of serious diseases. However, this process often requires considerable effort and can be crucial for the patient. In this context, the idea of using neural networks for analysis of electroencephalographic signals. They can effectively process large amounts of data and improve accuracy and speed brain activity analysis. Based on this research was developed software that allows EEG simulation and can serve as part of automated patient signal analysis and improve the speed of decision-making regarding patient treatment. For this kind of task, the prediction of EEG behavior by some varieties of neu-ral network LSTM model was evaluated and analyzed, namely, DARNN, LSTnet, TPA.
Analysis of the results of an incomplete factorial experiment using data on the relative aging rate of cellulose insulation as an example
Authors: M.O. Polyakov , A.A. Lenok , O.M. Polyakov
Published: April 2024

The problem with the distortion of the results of an uneven factorial experiment is the limited range and uneven duration of variation among other variables. This reduces the accuracy of the calculated value of the function. The method of investigation is to in-crease the magnitude of the value of the sought function using experimental data. The research method involves the development of a technique for interpolation and extrapola-tion of experimental data using various functions in the Matlab package. The result of the investigation is a technique that allows you to create a uniform grid of reference values, fill them in at the required time, change them, extrapolate data between the data space, and then feed this argument into the function є zero, see the insertion of additional ar-guments in the valued function, synthesize the valued functions in new nodes support grid value. The application of a standardized technique for molding the high value of liq-uid fluidity of the old cellulose insulation of power transformer windings as a function of temperature, moisture and access to acidity, which allowed at least 4.5 times, was intro-duced. increase the amount of data equal to the experiment.
Research of methods of increasing the energy efficiency of compressed air production by mine turbocompressors
Authors: Yu.A. Monastyrskyi , V.K. Tytyuk
Published: April 2024

Modern technological processes of industrial enterprises are provided by various energy carriers. The choice of rational energy carriers is determined by technological conditions, technical and economic indicators of production processes and energy supply conditions. Along with the main energy carriers, such as boiler and furnace fuel, thermal and electrical energy, water, compressed air is widely used in many industries. This is fa-cilitated by its special properties: elasticity, transparency, harmlessness, fire safety, in-ability to condense, fast pressure transfer and unlimited supply of atmospheric air in na-ture. Compressed air is one of the most expensive energy carriers used in industry. One kilojoule of energy obtained from a factory network of compressed air is seven to ten times more expensive than a kilojoule of energy used in an electric drive. This is due to the fact that the production of compressed air itself requires expensive compressor equipment and an air conditioning system that includes, among other things, a dehu-midification system. Nevertheless, the specific weight of this type of energy in modern production is quite large. On average, compressed air production in industrialized coun-tries accounts for about 10% of the total energy balance. At a number of industrial enter-prises, the consumption of electricity for the production of compressed air reaches 20 - 30% of the total amount of consumed electrical energy. Therefore, in systems of produc-tion and distribution of compressed air, the task of energy saving is very relevant, which is achieved by increasing the efficiency of compressors, rational use of compressed air by pneumatic receivers and reducing its losses during production and transportation to con-sumers. So, the article discusses methods of increasing the efficiency of compressed air production and distribution systems. Methods and methods of reducing the specific con-sumption of electricity for the production of compressed air at compressor stations, its losses in the production and distribution systems, as well as increasing the productivity, efficiency and reliability of the operation of compressor stations are proposed.
Analysis of anomalies in the structure and size of annual rings in mossy and ledum pine forests
Authors: Khokh Anna
Published: April 2024

The paper presents new experimental data and reveals the regular variability of the formation of density fluctuations, frost and fallen annual rings in mossy (Pinetum pleurozium) and ledum (Pinetum ledosum) pine forests. The main statistical characteristics of generalized tree-ring chronologies are analyzed, statistically significant differences (p < 0.05) in the average, maximum and minimum width of annual rings depending on the type of forest are established. It has been experimentally established that in ledum pine forests the number of anomalies is 3.34 times greater than in mossy pine forests. There were 229 density fluctuations in mossy pine, 530 in ledum, frost damage – 28 and 159, fallen tree rings – 10 and 202, in compliance. The most unfavorable years, which were reflected in the radial growth of mossy pine forests, were 1979 and 1980; the maximum number of detected anomalies (91,4%) occurred in 1907, 1928, 1958, 1971, 1985, 1990, 1992, 1994, 1999, 2010 and 2017. The most unfavorable years, which were reflected in the radial growth of ledum pine forests, were 1906 and 1940 ; the maximum number of detected anomalies (89.7%) occurred in 1928, 1937, 1944, 1946, 1963, 1965, 1974, 1977, 1981, 1982, 1991, 2000 and 2016. There are no coincidences of the formation of anomalies and minima of growth in mossy and ledum pine forests, as far as the degree of responses to changes in external conditions in these types of forests is different. The conducted studies have shown that the structure of annual rings of common pine can be considered as a reflection of the features of seasonal growth of trees, while the formation of anomalies of the structure is largely determined by soil-hydrological conditions of growth.
Semigrupos de operadores de convolución en espacios de Hilbert
Authors:   , Samur Jorge Donato
Published: April 2024

Se describe, sobre ciertas clases de funciones, el generador infinitesimal de un semigrupo de operadores de convolución que actúa en el espacio de las funciones reales uniformemente continuas y acotadas definidas sobre un espacio de Hilbert.
Promising Research and Development Results in the Field of Image and Speech Signal Processing
Authors: Likhachov D. S. , Ma J. , Petrovsky N. A. , Azarov I. S. , Tsviatkou V. Yu.
Published: April 2024

An analysis of the prospects for the development of technologies for processing images and speech signals is presented. The main results in these areas obtained in recent years in the relevant scientiﬁc schools of Belarusian State University of Informatics and Radioelectronics are presented. It is shown that the use of machine learning technologies in combination with methods of digital processing of images and speech signals can signiﬁcantly increase the eﬃciency of systems for their recognition and classiﬁcation.
Research of Acoustic Cavitation: Results, Practical Implementation and Development Prospects
Authors: Gavriluk V. S. , Dezhkunov N. V. , Kotukhov A. V. , Koltovich V. A. , Minchuk V. S. , Fedorinchik M. P. , Kurliuk E. A.
Published: April 2024

The most signiﬁcant results of research performed in the Belarusian State University University of Informatics and Radioelectronics, aimed at creating methods and instruments for monitoring cavitation and controlling its activity, are presented. To achieve this goal, it was necessary to clarify the mechanisms and patterns of new and little-studied phenomena: ultrasonic capillary eﬀect, sonoluminescence, cavitation noise and its spectral components and evaluate the possibilities of their use for hardware implementation as cavitation indicators. New cavitation phenomena have been discovered: reverse ultrasonic capillary eﬀect, generation of constant EMF under the inﬂuence of alternating pressure of ultrasonic frequency; acoustic clearing of the cavitation area with pulsed modulation of the ultrasonic ﬁeld, the eﬀect of long-term memory of the cavitation properties of the liquid. Previously unknown patterns have been established: it is shown that the cavitation region goes through four stages of development with increasing ultrasound intensity; a theorem on the maximum cavitation activity was formulated; the spectral characteristics of cavitation noise were established, correlating with the intensity of sonoluminescence. It has been shown that pulsed modulation of the ultrasonic ﬁeld makes it possible to control the dynamics of the development of the cavitation region and the activity of cavitation. Based on the data obtained, new methods and instruments have been developed to study cavitation and control its activity. In a number of parameters, the created equipment surpasses the best world samples, what is conﬁrmed by deliveries to the Russia, EU countries, China, USA and South Korea.
Enfermedades fitopatógenas en plantas ornamentales de importancia para la exportación en Guatemala
Authors: Toledo-Perdomo Claudia
Published: April 2024

Ornamental and foliage plants make a significant contribution to Guatemalans, generating approximately 15,000 permanent jobs. Currently, they export over 500 species and 3,000 varieties of ornamental plants, showing growth in exports in recent years. Phytosanitary management is a determining factor for the production and export of these plants. The objective of the research was to identify the phytopathogenic fungi and bacteria that attack the ornamental plants collected for the study. The plants were collected in the open field or greenhouse, placed in humid chambers, and cuts or scrapings were made for diagnosis, subsequently taxonomic keys were used. The plants evaluated were: Agapanthus (Agapanthus), Elephant's foot or pony (Beaucarnea), Gerbera (Gerbera), Anthurium (Anthurium), Bird of paradise (Strelitzia reginae), Protera (Protea mellifera), Magnolia (Magnolia javieri), Gladiolus (Gladiolus), Chamaedorea Fern (Rumohra adiantiformis), areca palm (Dypsis lutescens), syngonium (Syngonium podophyllum) and Rose (Rosa chinensis). Most of the diseases diagnosed were phytopathogenic fungi, identified as: Mycosphaerella, Alernaria, Colletotrichum, Oidium, Capnodium, Coniothyrium, Pestalotiopsis, Batcheloromyces, Botrytis, Fusarium, Phoma, Bipolaris, Verticillium and Cylindrocladium and only one phytopathogenic bacteria was diagnosed as Erwinia in Cyclamen, of the 18 evaluated. These phytopathogens have a direct impact on the production and trade of ornamental plants because the aesthetics of the product is an essential requirement in these crops.
Vidas vividas, vidas escritas
Authors: Kilanowski Piotr
Published: April 2024

Este artigo tem como objetivos apresentar a escritora e poeta polono-israelense Irit Amiel e refletir sobre sua biografia, inseparavelmente unida à sua escrita, em grande parte autobiográfica. Para tanto relato a biografia da escritora por meio de suas palavras, extraídas de livros e entrevistas, e uso estudos a seu respeito. Como quatro marcadores do relato biográfico uso os pontos de quebra na vida da autora, momentos de transformações importantes que configuram nascimentos de uma nova personalidade. Assim a fase da infância termina com o “segundo nascimento”, o momento da saída do gueto. Uma outra nova vida, a maturidade, é marcada simbolicamente com a mudança de nome depois de chegar a Israel. Por fim a época da sabedoria e senescência coincide com a estreia como escritora aos sessenta e três anos. O relato é acompanhado de uma reflexão sobre o trauma de um outro sobrevivente da Shoá, Boris Cyrulnik.
Accumulated Goods & Service Tax (GST) Refund and Its Adverse Impact on Business Performance
Authors: Kumar Sunil , Singh Gurmeet
Published: April 2024

The implementation of GST helped in absorbing too many prevailing indirect taxes at the State and Center level which has rightly been viewed as the boldest tax reform undertaken in the Independent India. However, it was observed that it could not absorb many problems that persisted in the earlier system of Indirect Taxes such as GST rate disharmony, accumulation of GST refunds, fraud and tax evasion, documentation complexities and many more. Among all these problems the most serious issue is the agglomeration of GST refunds which has made a dent in the business performance of the Indian industry. The purpose of the present study is to explore factors accountable for the accumulation of the GST refund and its adverse impact on business performance. It also attempts to examine the role of moderating variables (GST rate, Sales Volume and GST Sales Types) between the factors and the corresponding accumulation of GST refunds. To confirm the various factors accountable for the agglomeration of GST refunds, a conceptual model was tested after adding three moderate variables causing the acceleration of GST refunds. The present study also measures the adverse impact of accumulated GST refunds on business performance using data collected from the 325 registered GST dealers in Punjab. The empirical part of the present study involves the testing of the hypothesis based on the conceptual model with the help of the structural equation model.
The study found among the five factors accountable for the accumulation of GST refunds errors and mistakes, technical errors and fraud and tax evasion are the most accountable for the agglomeration of GST refunds for dealers selling Intrastate and Interstate while Legal factors are more responsible for the dealers having exports and selling to SEZ. The study findings is useful for the economic policymaker to bring about the requisite changes in the present GST refund mechanism to safeguard the industrial units.
College Students' Perceptions on Articifical Intelligence (AI) in Mangaluru Educational Settings
Authors: Sharel Pereira Carrel , Mascarenhas Joyce Muriel , Bhatt Shivshankar , Rodrigues Sharol Savitha , Almeida Ruth Samantha Stephen
Published: April 2024

This study delves into the attitudes of undergraduate students in Mangaluru City towards the integration of Artificial Intelligence (AI) in educational settings. The purpose of this research is to uncover potential disparities in student perspectives based on their field of study and academic year. Employing a structured Likert-scale questionnaire with 30 questions across three hypotheses, the research methodology involved collecting responses from 268 participants representing diverse academic disciplines. Statistical analyses, including Kruskal-Wallis tests and post hoc tests, were conducted to examine the significance of differences in attitudes. Findings reveal that academic discipline plays a role in shaping students' attitudes toward AI integration in education. The data also suggests that as students use AI-powered apps more frequently in their daily lives, they also tend to be more comfortable with AI-integrated educational tools. The study proved that there was no significant difference in the perceptions of students towards the impact of AI integration on the role of educators in the learning process based on their academic year. Limitations include the regional focus on Mangaluru City, which may impact generalizability. Educators can use the insights to tailor AI integration strategies based on disciplinary nuances, enhancing the learning experience. Socially, the study contributes to the discourse on AI in education, emphasizing the importance of considering diverse student perspectives. The originality of this work lies in its focus on a specific geographic region, shedding light on contextspecific attitudes that can inform localized educational policies and practices.
Interactive Biology media learning development to the student learning style (Audio-Visual-Kinesthetic) based on Google Site
Authors: Dzulfikry Rahmat , Bundu Patta , Saud Syukur
Published: April 2024

Purpose: This research aims to develop interactive learning media based on Google Site for student learning styles or Learning Style, because each student has a different learning style, whether visual, kinesthetic or audio-visual learning styles.

Research methodology: The methodology used in this research is qualitative Research and Development research with a 4D approach, which is an extension of defining, designing, developing and disseminating. The instruments used in this research include validation and practicality sheets, pre-test and post-test question instruments.

Results: The data processing carried out in this research is processing media validity data and also its practicality using the N-Gain test. The research results obtained are: 1) Assessment of the suitability of the media by media experts at 80%. 2) Assessment of the suitability of the material by material experts at 80%, meaning that the media and learning materials fall into the appropriate category and do not need to be revised. The effectiveness test of N-Gain data media shows a percentage of 56.297%. Based on the N-Gain effectiveness interpretation category, a treatment is said to be effective if it meets a percentage above 76%. It is said to be quite effective if it meets a percentage between 56-75%. Based on the results of this research, the model product developed is quite effective and has a good contribution to improving the learning outcomes of junior high school students.
DIFFERENCE IN USING LEAFLET AND AUDIO-VISUAL MEDIA TOWARDS TOOTHBRUSHING KNOWLEDGE AMONG STUDENTS
Authors: Koch Novarita Mariana , Fione Vega Roosa , Lidya Maramis Jeana , Pasambuna Jelni
Published: April 2024

Background: Effective dental health education, crucial for children, can be achieved through diverse media like leaflets and audio-visual tools. The 2018 Basic Health Research (Riskesdas) highlighted alarming dental health issues, with only 2.1% of Indonesian children aged 10-14 practicing twice-daily toothbrushing. North Sulawesi exhibited a meager 3.5% understanding of the proper brushing times, resulting in 96.3% brushing without awareness of the correct timing. Objective: This study aimed to analyze the effectiveness of leaflets and audio-visual media on toothbrushing knowledge among SDN Bangomolunow students. Method: Employing a quasi-experimental Pretest-Posttest Control Group design, 56 students were selected using purposive sampling and Slovin's formula. The research involved pre-tests, education for Group A via leaflets, and Group B via audio-visual media, followed by post-tests. The variable assessed was the level of knowledge of toothbrushing using a questionnaire instrument on how to brush teeth properly and correctly. Data analysis to show effectiveness uses the independent t-test. Results: The independent t-test resulted in a p-value of 0.037 which shows that both leaflet and audio-visual media are effective. However, there is a difference in the mean value where the mean for the audio-visual group is greater, namely 26.04, compared to the mean for the leaflet group, namely 24.75. Conclusion: In conclusion, employing audio-visual media for dental health education proved more effective in enhancing toothbrushing knowledge among SDN Bangomolunow students compared to leaflet-based education.
AUDIOVISUAL MEDIA NEEDS STUDY ON DENTAL CARIES: A SYNERGISTIC BLEND OF QUANTITATIVE AND QUALITATIVE APPROACHES
Authors: Liasari Ira , Oktaviani Nurfajri , Abubakar Syamsuddin , Priyambodo R. Ardian , Nur Aida Wanda
Published: April 2024

Dental caries remains a global issue, with a high incidence still prevalent in Indonesia. Promotive activities are essential to enhance children's knowledge from an early age, enabling them to practice preventive measures against dental caries. This research aimed to explore the need for audiovisual learning media to improve the understanding of dental caries among elementary school children. A mixed-method approach was utilized, combining both quantitative and qualitative methods. The quantitative phase involved conducting a survey on children's understanding levels of caries using a questionnaire and analyzing the data using descriptive statistics. Meanwhile, the qualitative phase included interviews with the school principal, a teacher, and a parent of a student using interview guidelines. The qualitative data were analyzed using thematic analysis methods to gain insights into perceptions regarding the potential development of audiovisual media. The findings indicated a low level of understanding among children about dental caries and limitations in dental health education efforts from health centers. Teachers, despite their efforts, faced challenges due to a lack of relevant knowledge. The potential of audiovisual learning media was acknowledged as an effective solution to enhance student understanding. In conclusion, this study highlights the necessity for developing captivating and age-appropriate audiovisual learning media for elementary school students
Accessibility of formal credit among female farmers from Bank of Agriculture (BOA) in Abia State Nigeria
Authors: Nnamani N. G. , Iwezor-Magnus D. N.
Published: April 2024

The study focused on access to formal credit among female farmers from Bank of Agriculture(BOA) in Abia State Nigeria. The socio-economic characteristics,determinants of credit access among female farmerswere examined and determined.A total number of one hundred and fourteen (114) respondents were randomly selected through a multi -stage stratified sampling technique. Primary data were analyzed using descriptive statistical tools such as frequencies, means, percentages and inferential statistic; Logit Regression Model. The mean age (44 years), household size (6 persons), educational level(3.28), farm size(2.51 hectares)and service charge(N19, 789. 47) respectively represents the socioeconomic profile of the female farmers. Logit result identified significant variables that affect the credit access to the farmers to include; farm income (0.113), equity (0.137), marital status (0.114), guarantor (0.052), experience (0.0004), service charge (-0.181) and age (-2.697).It was recommended that improving access to formal credit tofemalefarmersshould be encouragedto diversify farm enterprises with the credit obtained from the financial institution by downward review of equity contribution and service charge on credit supplied tothe female farmers. It was also recommended that credit be extended to the relatively young people who would be able to embrace new agricultural innovations as to increase their productivity
Effectiveness of print media in technology transfer among rural farm households in Imo state, Nigeria
Authors: Njoku J.I.K.
Published: April 2024

The study analyzed the effectiveness of print media in technology transfer among rural farm households in ImoState, Nigeria. Multi-stage random sampling technique was used to select 126 farm households for the study. Data were collected with a structured questionnaire and analyzed using descriptive statistics and ordinary least square multiple regression model. Results revealed that 51.6% of the respondents were female and 81.8% were married with a mean age, household size, farming experience, monthly income and years of schooling of 43 years, 5 persons, 29 years, N31,573.80 and 14 years respectively. Majority (83.1%) of the respondents had access to posters which is also the most frequently used (x= 2.90) print media for technology transfer in the study area. The result indicated that the highest mean score of the technologies transferred was cassava/yam/maize/melon intercrop. While irrigation crop techniques with the least mean score (x=1.38), was not effective. This high effectiveness of print media in transferring most of the technologies implies that extension system had competent workers who were effective in their jobs. The coefficient of age, cost, farming experience, farm size household size, frequency of extension contacts and access to print media significantly influenced the use of print media in technology transfer. Time consuming (= 2.80), high cost (= 2.60), limited space (= 2.60) and inaccessible roads, (= 2.30) were serious constraints to the use of print media in technology transfer. The study concluded that socio-economic characteristics of the farmers affect the use of print media in technology transfer that could improve their farm activities. Therefore, farming households should be enlightened on the use of print media in rural areas to enrich their knowledge of improved technologies. Policies aimed at access and use of agricultural information extension teaching and learning that has higher return on agricultural productivity should be advocated.
Perceived effects of N-power agro programme on youth empowerment and income generation in Lagos state, Nigeria
Authors: Komolafe O.D. , Taiwo A. M. , Fapojuwo O. E. , Oyewole, A.Q.
Published: April 2024

The study examinedthe effect of N-power Agro program on youth empowerment and income generation in Lagos state, Nigeria. The objectives of the study were to examine the socio-economic characteristics of N-power agro beneficiaries, to determine the contribution of N-Agro toempowerment,to ascertain how N-Power agro programme generatesincome for the youths and to know theproblems affecting N-Power Agro programsin Lagos state. A three-stagesampling technique was used to select one hundred and twenty (120) respondents. Data were collected using structured questionnaire and analysed withdescriptive and inferential statistics such as frequency counts, percentages, meanand Analysis of Variance. The meanage of the respondents was 26 years,55.0% were male,50.8% were married and 42.5% were First Degree holders.Findings also revealed that80.0% felt the programme has improved their working experience,79.2% indicated that the programme has helped in poverty reduction while 62.5% perceived that the programmeensured their financial independence. The major problemsaffecting the implementation of N-Power Agro programmes in Lagos State arenon-payment of stipend to participants as at when due(̅= 2.92), insufficient information (̅= 2.68) and high transportation fare paid by the participants to work (̅= 2.63). The study also revealedthat there is a significant relationship betweenN-Power Agro andyouthempowermentin Lagos State. It is therefore recommended that government should ensure adequate provision of funds for income-generating projects through the N-Power programmes. This will solve the problem of delay in the payment of the stipend
Effect of postharvest treatments on the shelf life of two mango cultivars
Authors: Ojurongbe Taiwo A. , Bashiru Kehinde A. , Akinyemi Sunday O.S.
Published: April 2024

Mango is one of the numerous delicious seasonal fruits that are cultivated in Nigeria. It is also a good source of income for farmers that are involved in its cultivation. It is therefore important to have good information about the preservation of this fruit for maximum profit. To achieve this, four levels of treatment that could affect the shelf life were applied to matured but not yet ripe mango fruits. Four storage properties were also used to assess the shelf life of the mango fruit. Data on fruit weight were collected at three days intervals in a space of nine days for two mango varieties, Keitt and Palmer. Analysis of Covariance (ANCOVA), was carried out using fruit weight as the dependent variable modeled against three independent variables namely: treatment, cultivar and initial fruit weight. The initial weight of the mango fruit before applying the treatments was used as our covariate. Bar charts showing the frequencies and percentages of the storage variables comparing the two cultivars were also plotted. The results revealed that the treatments had a significant effect (p = 0.001) on the fruit weight of the mangoes and the storage variables were important in determining the shelf life of mango with respect to the two varieties. It was observed that the Keitt cultivar has a better shelf life than the Palmer. The study recommended that for a longer shelf life of mango, the treatment of dipping in hot water at 550C should be put into consideration by farmers in Nigeria and that ANCOVA statistical method could be a good model for predicting the storage life of other fruits.
La storia dell’energia nell’avventura umana
Authors: Mani Fabrizio
Published: April 2024

Energy is the engine of human progress and human history is marked by the quantity and characteristics of available resources. In the last century, with the world population quadrupling and the use of new technologies, energy consumption has accelerated dramatically. The combustion of fossil fuels has increased the concentration of “greenhouse gases” and caused global temperatures to rise, resulting in climate change. Europe, a leader in the fight against climate change, has a modest influence globally, and it is illusory to think that there are now effective solutions that can be shared by all countries for resolving environmental problems quickly. Certainly, electric cars are not the answer. We will therefore have to adapt to the effects of climate change for many decades to come, even if scientific progress discovers energy systems which are unlimited and “cleaner” than today.
Periprothetic Circulating Pseudoaneurysm of the Aortic Root: A Complication of Infective Endocarditis
Authors: Kirami S. , Bouktib Y. , Elhajjami A. , Boutakioute B. , Idrissi M. Ouali , Elgannouni N. Idrissi
Published: April 2024

Infective endocarditis is an infection with potentially deadly consequences, perivalvular psudoaneurysm remain a very rare complication associated with high mortality. Thoracic CT angiography, in addition to echocardiography, serves as a powerful tool in the exploration and characterization of this vascular complication, guiding further management.
Study Abroad and Intensive Linguistic Immersion in Spain: Undergraduate Oral Proficiency for Short-Term Study Abroad
Authors: Moneypenny Dianne Burke , Aldrich Rosalie
Published: April 2024

Study abroad is an important piece of the internationalization of curriculum and is particularly advantageous for second language learners. Many students study abroad to learn a language and the majority of students studying abroad enroll in shorter-term programs. Given their strong representation in the field of study abroad, the following article addresses second language students and oral proficiency in shorter-term study abroad programs. This study focuses on participants (n = 8) who spent three weeks in Spain. These students completed six credit hours of online spring semester coursework and signed an immersion contract for their three weeks abroad over the summer. Before departure and upon returning they took the Versant for Spanish test. Findings indicated that the three-week program abroad led to gains in overall Spanish oral proficiency as well as in vocabulary acquisition, fluency, and pronunciation skills.
Virtual Transborder Service Learning as a Transformative Educational Pedagogy: A California, USA - Baja California, Mexico Academic Partnership in Sustainable Tourism
Authors: Dudley Katie , Sasidharan Vinod , Reyes-Orta Marisa , Olague Jose
Published: April 2024

Service learning (SL) engages students in intentional, collaborative service experiences that promote civic citizenship. The COVID-19 pandemic forced traditional face-to-face SL courses to transition into virtual service learning (e-SL). This paper examines the academic and civic outcomes of an e-SL binational sustainable tourism course for undergraduate students. The course was designed to deliver disciplinary knowledge in sustainable tourism and transborder civic citizenship competencies in the following areas: 1) Ethos, 2) Literacy, 3) Inquiry, 4) Action, 5) Leadership, and 6) Partnership. A post-course student survey was deployed to assess student perspectives regarding the achievement of course outcomes. The findings revealed significant (positive) academic and civic transformations among the students due to the intentionality of the e-SL course design and implementation. Results indicate that e-SL in sustainable tourism education can be an effective pedagogy for inculcating civic learning, responsibility, and engagement among students and future professionals in the field of tourism.
Abstract in Spanish
El aprendizaje de servicio (SL) involucra a los estudiantes en experiencias de servicio intencionales y colaborativas que promueven la ciudadanía cívica. La pandemia de COVID-19 obligó a los cursos tradicionales de SL cara a cara a hacer la transición al aprendizaje de servicio virtual (e-SL). Este documento examina los resultados académicos y cívicos de un curso binacional de turismo sostenible e-SL para estudiantes universitarios. El curso fue diseñado para impartir conocimientos disciplinarios en turismo sostenible y competencias de ciudadanía cívica transfronteriza en las siguientes áreas: 1) Ética, 2) Alfabetización, 3) Investigación, 4) Acción, 5) Liderazgo y 6) Asociación. Se implementó una encuesta de estudiantes después del curso para evaluar las perspectivas de los estudiantes con respecto al logro de los resultados del curso. Los hallazgos revelaron transformaciones académicas y cívicas significativas (positivas) entre los estudiantes debido a la intencionalidad del diseño e implementación del curso e-SL. Los resultados indican que el e-SL en educación turística sostenible puede ser una pedagogía efectiva para inculcar el aprendizaje cívico, la responsabilidad y el compromiso entre los estudiantes y futuros profesionales en el campo del turismo.
Intercultural Professional Development for Educators: Applying Intercultural Learning to Enhance Effectiveness
Authors: Namaste Nina , Sherman Whitney , Gibson Annie , Spira-Cohen Ezra
Published: April 2024

To examine the interaction between educators’ intercultural development and students’ intercultural growth, we studied the impact of CIEE’s Intercultural Communication and Leadership (ICL) course. Our results indicate that Educator, Country, Gender, and Field had impacts on students’ intercultural gains (Gibson et al., 2023); the focus of this article is solely on educators’ perceptions of the factors that shape their ability to foster student intercultural learning. Using the AAC&U’s (2009) Intercultural Knowledge and Competence VALUE Rubric to frame the 22 educator interview responses, our study indicates the tangible results of formally and informally supported educators’ intercultural professional development. As a result of educators’ intentional intercultural development, they leverage skilled pedagogical techniques to effectively bridge with students to enhance their intercultural learning. Therefore, we argue for the investment, expansion, and mentorship of faculty development, particularly with regards to educator’s own intercultural growth, in order to activate and expand students’ learning while studying abroad.
Abstract in Spanish
Para examinar la interacción entre el desarrollo intercultural del profesorado y el avance cultural estudiantil nosotros estudiamos el impacto del curso, “Intercultural Communication and Leadership”, que enseña el programa CIEE. Nuestros resultados indican que el profesor, el país, el género y la disciplina tiene un impacto en los avances interculturales de los estudiantes que estudian en el extranjero (Gibson et al., 2023); este artículo se enfoca únicamente en las percepciones de los factores que les ayuda a los maestros a fomentar el aprendizaje intercultural de los estudiantes. Entrevistamos a 22 educadores y usamos a la rúbrica “Intercultural Knowledge and Competence VALUE” (2009) de AAC&U para interpretar las entrevistas. Nuestro estudio indica que lo más significativo, para ellos, es el desarrollo profesional que se enfoca en su propio desarrollo intercultural. Con esta formación el profesorado podía usar y aplicar pedagogías para conectar con los estudiantes que efectivamente avanzaban las habilidades interculturales de los estudiantes. A causa de tal, nosotros argüimos que la inversión, expansión y mentoría del profesorado, enfocado en su propio desarrollo intercultural, es necesaria para fomentar las capacidades interculturales de los estudiantes mientras estudian en el extranjero.
STRATEGI PEMBERDAYAAN UMKM DI DESA AGROWISATA TEGAL WARU FARM LAND
Authors: Mursyidah Azizah , Purnama Bayu , Suryani Ermi
Published: April 2024

Penelitian ini dilakukan untuk untuk mengetahui strategi yang di terapkan salah satu pelaku usaha mikro, kecil dan menengah (UMKM) di desa Tegal Waru Farm Land. Objek penelitian ini adalah UMKM. Metode yang digunakan dalam penelitian ini adalah metode kualitatif dengan pendekatan deskriptif. Berdasarkan hasil penelitian, didapati bahwa strategi bisnis yang digunakan adalah dengan fokus menjual Produk dari para UMKM setempat, mulai menggunakan internet dan media sosial untuk memasarkan hasil produksinya sangat tepat dan bermanfaat. Dengan demikian kesimpulan dari penelitian ini adalah untuk mempertahankan kelangsungan usaha kecil (UMKM)  pemanfaatan internet dan media sosial merupakan strategi yang sangat tepat untuk meningkatkan kesejahteraan masyarata sekitar.
Efeitos do Manejo Dietético na Prevenção e Tratamento da Pré-Eclâmpsia em Gestantes de Alto Risco: Uma Revisão Integrativa
Authors: Pereira Miguel Fontana , Castro Pedro Victor Alves , Alves Pedro Henrique Paes , Vieira Ary Aragão Cabral , Oliveira Maurício Marlon Mota de , Lima Sarah Sacha de Melo , Sarmento Júlia Teixeira , Fé Luana Moura Luz , Neto Adoaldo Fernandes Gomes , Silva Laís Ferreira
Published: April 2024

Introdução: A pré-eclâmpsia é uma complicação grave da gravidez caracterizada por pressão arterial elevada e proteína na urina após a 20ª semana de gestação. Em casos graves, pode levar a complicações sérias para a mãe e o feto, incluindo convulsões, danos aos órgãos e até mesmo morte.
Metodologia: Os descritores utilizados na busca foram selecionados para abranger amplamente o tema, incluindo termos como "pré-eclâmpsia", "gestantes de alto risco", "manejo dietético", "nutrientes", "dieta DASH", "exercício na gravidez", entre outros.
Resultado: A compreensão do papel da dieta na prevenção e tratamento da pré-eclâmpsia é complexa e multifacetada. Uma variedade de nutrientes e dietas específicas foram investigadas quanto ao seu potencial impacto sobre os fatores de risco e os mecanismos subjacentes à pré-eclâmpsia. Entre esses nutrientes, o cálcio tem recebido atenção especial devido à sua função na regulação da pressão arterial e na saúde vascular.
Conclusão: Em conclusão, o manejo dietético desempenha um papel importante na prevenção e tratamento da pré-eclâmpsia em gestantes de alto risco. A ingestão adequada de nutrientes específicos, como cálcio, vitamina D, magnésio e ácido fólico, bem como a adoção de dietas saudáveis, como a dieta DASH, podem ajudar a reduzir o risco de desenvolver a condição.
A INFLUÊNCIA DA TECNOLOGIA DIGITAL NOS HÁBITOS VISUAIS E SUA RELAÇÃO COM A SAÚDE OCULAR
Authors: Machado Altielly Montes , Luna Larissa Santos , Almeida Amanda Costa de , Silva Humberto Faria Nogueira da , Freitas Pedro Henrique de Oliveira Langoni Ribeiro
Published: April 2024

Com o avanço da tecnologia digital e o aumento do uso de dispositivos portáteis, surge uma preocupação crescente sobre os impactos na saúde ocular. Esta revisão narrativa examina a influência da tecnologia digital nos hábitos visuais e sua relação com a saúde ocular. Foram exploradas lacunas na pesquisa sobre saúde ocular associada ao uso de dispositivos portáteis, o impacto da tecnologia digital na evolução da imagem ocular, a precisão dos aplicativos móveis de medição da acuidade visual e a usabilidade de intervenções de saúde para pacientes vivendo com HIV. Os resultados destacam a necessidade de compreender melhor os sintomas de desconforto ocular relacionados ao uso de dispositivos portáteis, o potencial revolucionário da inteligência artificial na análise de imagens oculares, e a importância de uma abordagem multifacetada na avaliação da usabilidade de intervenções de saúde.