bluuebunny/crossref_metadata_2025 huggingface dataset:
Characterization of Some Portland Limestone Cements in Nigeria Using Fourier-Transform Infrared Spectroscopy (FTIR)
Authors:   Modibbo Adama University, Danchuwa Ibrahim Mohammed , Abatcha Mustapha Zannah ,   Modibbo Adama University, Aliyu Yazid ,   Modibbo Adama University, Yawale Mohammed Buba ,   Modibbo Adama University, Abubakar Walid Haruna ,   Gombe State University, Abubakar Abdulhameed Umar ,   Modibbo Adama University
Published: April 2023

In Nigeria, the most widely used cement strength class are 32.5 and 42.5 Portland limestone cement. However, due to lack of awareness, scientists and researchers are reporting the use of PLC as Ordinary Portland Cement (OPC). Thestudy presents the characterization of PLC using absorption spectroscopy as well as oxide composition. Ratio between 7 -and 28 -day strengths of some selected PLCs are presented. It is seen that the Brands investigated conforms to the specifications of Portland composite cements in compliance with ASTM C150 and NIS 444-1. Absorption spectrum for the two brands were similar to that of OPC and exhibited similar characteristics. Concrete strength was within the designed concrete specification, and the ration between the two curing ages is 0.6 for both brands.
Fresh Properties and Compressive Strength of 3D Printing Concrete Containing GGBS as Partial Cement Replacement
Authors:   Universiti Tun Hussein Onn Malaysia, Juhari Hajar Fathiah , Ali Noorwirdawati ,   Universiti Tun Hussein Onn Malaysia, Abdullah Siti Radziah ,   Universiti Tun Hussein Onn Malaysia, Salleh Norhafizah ,   Universiti Tun Hussein Onn Malaysia, Abdul Hamid Noor Azlina ,   Universiti Tun Hussein Onn Malaysia
Published: April 2023

3D printingconcrete is a particular mix of concrete that has been specially prepared to flow easily through the printing nozzle. The foundations of 3D printingconcrete constructions are stacked, with each layer put on top of a preceding layer of pumped concrete. Despite its potential, the construction industry has been confronted with several material issues. The cement replacement in the concrete has also been intensively studied, but in 3D printingconcrete, this matter has not been seen clearly. It still cannot be seen whether the cement replacement produces a good result for the 3D printed concrete. This research investigated the fresh characteristics and compressive strength of 3D printingconcrete using GGBS as a partial cement replacement in the mixture. In addition, the optimal proportion of GGBS as a partial cement replacement in 3D printingconcrete is also evaluated. In this study, the fresh properties of 3D printingconcretewere examined by a flow table test, a buildability test, and an extrudability test, while compressivestrength was assessed for the mechanical properties. The percentage of GGBS used variesfrom 20% to 50% with a 10% increment by weight of cement, and the water-cement ratio was fixed at 0.5. The cube specimen for the compression test was 50 mm x 50 mm x 50 mm and was cured for 7 and 28 days. The findings show that the flowability ofthis 3D printingconcrete increased as the percentage of GGBS increased. All of the specimens also passed the buildability and extrudability tests. The compressive strength of this 3D printingalso increased as the percentage increased, but it decreased back at 50% GGBS replacement. Overall, this experiment shows that 40% GGBS replacement is the optimum proportion as cement replacement in 3D printingconcrete as it shows the highest compressive strength, which is 57.3 MPa.
Species Diversity and The Importance of Charismatic Medicinal Plants in Ayer Hitam Utara Forest Reserve, Johor
Authors:   Universiti Tun Hussein Onn Malaysia (UTHM), Pagoh Campus, Bt Nor Hassan Nurul Hazirah , Bt Pa’ee Furzani ,   Universiti Tun Hussein Onn Malaysia (UTHM), Pagoh Campus
Published: April 2023

Medicinal plants in peat swamp have not received much attention in Malaysia in recent years due to land conversion in this peat swamp area. This study aimed to record species diversity of medicinal plants in Ayer Hitam Utara Forest Reserve, to develop an interactive website containing medicinal plants in Ayer Hitam Utara Forest Reserve and to collect feedback on user experience using the website by using an online survey. Data about species diversity was measured by Shannon-Wiener Index by doing random sampling with 10 m x 5 m quadrat. There are 21 species (14 families) of medicinal plants were identified. Clidemia hirta, Spondias dulcis andVitex pinnatawere among the highest number of individuals of each species that could be found. Fever, wound treatment, and stomachache, were the most common illness that uses these medicinal plants. Decoction method was the most typical way to prepare this herbal medicine. Koompassia excelsa is one of the new records of medicinal plants found in this Ayer Hitam Utara Forest Reserve which can lower cardiovascular risk, act as an antioxidant and help in wound healing. An interactive website was developed using StoryMap ArcGIS to document the collection. Based on feedback for the website, most of the respondents agreed that the website has good content and user-friendly. This documentation is crucial to preserve our natural resources for the future generation.
Does The Smart Tourism Experience in Malaysia Increase Local Tourists' Happiness and Revisit Intentions?
Authors:   Universiti Tun Hussein Onn Malaysia, Ruslan Noraini , Ying Khoo Pei ,   Universiti Tun Hussein Onn Malaysia, Abu Hassan Fasihah ,   Universiti Tun Hussein Onn Malaysia, Abdul Halim Abdul Muhaimin ,   Universiti Tun Hussein Onn Malaysia, Arba’ain Anes Farhanna ,   Universiti Tun Hussein Onn Malaysia, Muazam Fatin Nur Izzati ,   Universiti Tun Hussein Onn Malaysia, Rashidi Intan Farah Farina ,   Universiti Tun Hussein Onn Malaysia, Valerience Ng Wei Inn ,   Universiti Tun Hussein Onn Malaysia, Mohamed Zamri ,Nur Fatini ,   Universiti Tun Hussein Onn Malaysia, Zol Nurul Uzzaty ,   Universiti Tun Hussein Onn Malaysia, Jasni Jannatulhawa ,   JJ Aqua Resources
Published: April 2023

Nowadays, the term "smart" has become popularin reflecting technological advancements in social and economic improvement, as well as knowledge and information exchange.The advent of smart technology has empowered everything to be more connected, informed, and convenientlyinvolved with clients, especially in the global tourism industry. Malaysia, on the other hand, has less research on the use of smart tourism since it is still in the early stages of development,and tourism locations are still seeking their own rhythm to thrive. In addition, there is a lack of a specific framework, numerous global-scale crises with negative impacts on tourist arrivals and the environment, and poor digitalization, which has resulted in a drop-off in tourist experiences. This study was carried out to investigate whether local tourists are satisfied with the smart tourism technology experience in Malaysia and to explore whether smart tourism technology has a positive effect on tourists’ happiness. An online questionnaire was created using Google Form, distributed through WhatsApp, Telegram, Facebook, Instagram from May 1, 2021, to August 1, 2021,and completed by 529 participants. The results suggested the majority (more than 90%) of respondents found difficulty searching for information about the local attractions in each state of Malaysia during travel, which caused a greater decline in their excitement to do local traveling. With reliable centralized mobile apps that exist for all tourism sectors in Malaysia, research findings showed that they could increase tourists' revisit intentions and happiness, which consequently boosts the revenue of the economy.This study reveals another new aspect that can contribute to the existing literature and strategize on how smart tourism technology can be improved in Malaysia.
Особенности структурных изменений в закаленной стали 40Х в условиях фрикционного нагружения
Authors: Эмурлаев К. И. , Ложкин В. С. , Батаев И. А.
Published: April 2023

Изучены особенности структурных превращений в стали 40Х в условиях трения, наблюдаемые в процессе operando эксперимента с использованием дифракции синхротронного излучения. Исследовано изменение химической неоднородности мартенсита при фрикционном нагружении и проведен анализ влияния этого явления на дефектность кристаллической решетки мартенсита. Показано, что взаимодействие пары “сплав ВК20 – сталь 40Х” в заданных условиях приводит к окислению железоуглеродистого сплава и, таким образом, способствует установлению режима устойчивого трения
Термическая обработка коррозионно-стойкой аустенитно-ферритной стали для погружных насосов
Authors: Фахуртдинов Р. С. , Пучков Ю. А. , Карпухин С. Д. , Медведев П. Н. , Дегтярева А. Г.
Published: April 2023

Исследовано влияние режимов закалки на структуру, фазовый состав и твердость аустенитно-ферритной нержавеющей стали 20Х25Н8АД3М2 методами световой микроскопии, рентгенофазового и дюрометрического анализов. Проведены испытания на коррозию стали в 3%-ном водном растворе NaCl с использованием методов потенциометрии и потенциодинамического анализа. Предложены режимы термической обработки, улучшающие стойкость стали 20Х25Н8АД3М2 к общей и питтинговой коррозии. Показано, что алюминий и титан, используемые при раскислении стали, могут вызывать у нее питтинговую коррозию даже после закалки.
Organization of small-scale production of parts based on module technology patterns
Authors: Bazrov Boris
Published: April 2023

It is emphasized that the traditional job shop production is characterized by low efficiency due to the use of superuniversal machining facilities for their underemployment of performance capabilities at work and also low-productivity of process flowsheet when machining part surfaces as a sequential surfaced job, the organizational form of production in the form of sections by type of machine tools, i.e. a section of lathes, a section of milling machines, etc. It results in large travel length of workpieces in the machining process at work. The desire to increase the efficiency of production by organizing launch of batch workpieces that are formed in a constructive similarity, such as structures, parts of rotation body types, etc., does not have a significant effect, because the task is just minimizing the run time spent on changing fixtures and reinstalling workpieces, but not taking into account an optimal sequence of parts in the batch. For increasing the efficiency of small-scale production, the module technology is proposed. The main idea of it is to represent the part not as a network of separate surfaces, but as surface modules, where the surface module is understood as a combination of surfaces and the part performs its proper function with the help of this module. This enables a good specialization of workplaces that are organized not for processing methods, but for manufacturing the appropriate groups of surface modules. The latter make it possible to take advantage of a more productive process flowsheet for machining part surfaces. It is sequential parallel surface job that is used. When organizing production, it becomes possible to use the layout of workplaces in line according to the in-line method, which will significantly reduce the part travel length at workplaces.
Synthesis and Characterization Of CaMgO2 Nanoparticles Photocatalyst For the Decolorization Of Orange G Dye
Authors: Alwash Atheel
Published: April 2023

A series of heterogeneous basic catalysts of CaO, MgO and CaMgO2 at different calcination temperature were synthesized via solution combustion method. Different characterization techniques have been carried out to investigate the structure of the produced catalysts i.e. X-ray diffraction (XRD), particle size analyzer, morphology by atomic force microscope (AFM) and reflection using UV-VIS diffuse reflectance spectra. The particles size analyzer revealed that the mixed oxide catalysts calcined at different calcination temperature possess smaller nano size particles compared to pure CaO. Moreover, the energy band gap was calculated based on the results of diffuse reflectance spectra. The energy band gap was reduced from 4.1 to 3.6 eV for the CaMgO2 catalyst calcined at 400 and 600 °C respectively compared to pure oxide catalysts. The higher decolorization efficiency was 100% after 60 min of photocatalytic reaction for CaMgO2 calcined at 600 °C compared to CaO and MgO with catalytic activity of 58% and 27% respectively.
Effect of Electrical Discharge Machining and Shot Blast Peening Parameters on Fatigue Life of AISI D2 Die Steel
Authors: Al-Khazraji Ahmed , Amin Samir Ali , Ali Saad Mahmood
Published: April 2023

The present paper deals with studying the effect of electrical discharge machining (EDM) and shot blast peening parameters on work piece fatigue lives using copper and graphite electrodes. Response surface methodology (RSM) and the design of experiment (DOE) were used to plan and design the experimental work matrices for two EDM groups of experiments using kerosene dielectric alone, while the second was treated by the shot blast peening processes after EDM machining. To verify the experimental results, the analysis of variance (ANOVA) was used to predict the EDM models for high carbon high chromium AISI D2 die steel. The work piece fatigue lives in terms of safety factors after EDM models were developed by FEM using ANSYS 15.0 software. The results appeared that the experimental fatigue safety factors (at 106 cycles) decreased by (11 %) after EDM using copper electrodes compared with as-received material and this value is higher by (3.35 %) when using graphite electrodes. The fatigue strength at the same number of cycles was (0.88) and (0.84) times the fatigue strength of as-received material for copper and graphite electrodes respectively. While fatigue strength and safety factors increased after EDM when increasing shot peening time, at the higher shot peening time is by (19.1 %) when using copper electrodes and by (23.26 %) when using graphite electrodes.
Behavior of Reinforced Concrete Continuous Beams under Pure Torsion
Authors: Mohaisen Saad Khalaf , Abdulhameed Ali Adel , Kharnoob Majid Mohammad
Published: April 2023

Practically, torsion is normally combined with flexure and shear actions. Even though, the behavior of reinforced concrete continuous beams under pure torsion is investigated in this study. It was performed on four RC continuous beams under pure torsion. In order to produce torsional moment on the external supports, an eccentric load was applied at various distances from the longitudinal axis of the RC beams until failure.

Variables considered in this study are absolute vertical displacement of the external supports, torsional moment’s capacity, angle of twist and first cracks occurrences. According to experimental results; when load eccentricity increased from 30cm to 60cm, the absolute vertical displacement increased about 46.92% and the angle of twist increased about 45.76% at failure. It has been also found that the ultimate failure loads decreased about 49.65% when the load eccentricity increased from 30cm to 60cm. Furthermore, the first crack was monitored and it was found that the first crack occurred at higher stages of loading with low loading eccentricity. The first crack records appeared at 75.86%, 70.80%, 63.16% and 54.79% of loading when the load eccentricities are 30, 40, 50 and 60cm, respectively.
A Laboratory Study Attempt of Flow and Energy Dissipation in Stepped Spillways
Authors: Abdul-Mehdi Thulfikar Razzak , Al- Mussawy Haider Ali , Al-Madhhachi Abdul- Sahib Taufeeq
Published: April 2023

A new laboratory study conducted on stepped spillways in order to investigate their efficiency of dissipating flow energy. All previous study on stepped spillway indicated that the flow energy dissipation decreased as increasing in discharge. Increasing in the step numbers and the spillway slope led to energy dissipation decrease. In this study, an experimental attempt to increase energy dissipation at variable discharges was performed on stepped spillway and that leads to decreasing the cost of initiating the stilling basin or may be ignoring it. Five spillways were constructed from concrete and tested to investigate and compare among them. Three were roughed by gravel with different size for each one, one of them was stepped without any addition, and the last one was stepped with cavitation. The height of stepped spillways was 18 cm with unique numbers of steps (n = 3), and unique downstream slope of stepped face (θ =30⁰) were utilized. The percentage of relative energy dissipation (R.E.D) was increased using rough surface with coarse gravel. When the size of gravel increased, the R.E.D was increased and when using the ratio between heights of gravel to steps of 0.5, the R.E.D was increased to about triple compared with traditional spillways. The R.E.D was decreased when the cavitation on the stepped surface was utilized compared to the stepped spillway without any addition for large discharges and that was inverse for small discharges. Comparing to steps without any addition, the rouged steps with the larger size of gravel maximized the energy dissipation for both small and large discharges. The relative energy dissipation was 26.73 % compared with traditional spillway and 16.73 % compared with stepped spillway without any addition, since the stepped spillways more effective than traditional spillways by 10 %. In general, the R.E.D was decreased when increasing the discharge.
Investigação e processamento dos crimes de homicídio na Área Metropolitana de Brasília
Authors: Trindade Maranhão Costa Arthur , Zackseski Cristina Maria , Caixeta Maciel Welliton
Published: April 2023

Neste texto examinamos os principais resultados de uma pesquisa realizada no ano de 2013 sobre o Fluxo da Justiça Criminal na Área Metropolitana de Brasília (AMB) nos casos de homicídios ocorridos no ano de 2010, a partir dos dados obtidos junto à Secretaria de Segurança Pública do Estado de Goiás, referentes a oito cidades - Águas Lindas, Cidade Ocidental, Formosa, Luziânia, Novo Gama, Planaltina de Goiás, Santo Antônio do Descoberto e Valparaíso de Goiás. A partir de uma análise preliminar destes dados, selecionamos três cidades em razão da distância estatística em relação a áreas adjacentes que exibiram, no mesmo período, números significativamente inferiores. Assim, a escolha para um estudo mais detalhado sobre o processamento destes casos recaiu sobre as cidades de  Luziânia, Planaltina de Goiás e Águas Lindas de Goiás. Foi constatado um baixo percentual de esclarecimento dos homicídios ocorridos na área, no período estudado, sendo analisados alguns fatores relacionados a este problema.
Uma perspectiva multilateral para a prevenção da violência na América Latina
Authors: Carbonari Flávia , Wolf Gregor , Hoffman Joan Serra , Caprirolo Dino
Published: April 2023

Este artigo apresenta uma perspectiva de agências multilaterais sobre segurança cidadã na América Latina e, especificamente, no Brasil. Baseado na experiência do Banco Mundial e do BID, discute a abordagem teórica e o marco operacional das duas instituições na agenda de segurança, enfatizando a importância dos investimentos em prevenção da violência, sobretudo focada em jovens. Reflete sobre o potencial e dever das multilaterais na promoção da segurança cidadã na região e discorre sobre os diferentes mecanismos de cooperação utilizados. Por fim, destaca a vocação dos municípios na prevenção da violência, ressaltando a importância do apoio dos organismos internacionais a governos locais para a promoção de cidades e países mais seguros.
Guardas Municipais: entre a tentação da tradição e o desafio da inovação
Authors: Kopittke Alberto
Published: April 2023

O Brasil vive pela terceira vez, nos últimos 200 anos, o debate sobre o papel das Guardas Civis. Este artigo busca colaborar com este debate fazendo uma retrospectiva histórica sobre o tema e busca demonstrar como a Lei 13022/2014 abriu um debate muito mais amplo e relevante sobre a concepção de Segurança Pública existente no país. O presente artigo discute o conceito de prevenção apresentado na Ação Direta de Inconstitucionalidade (ADIN 5651) como argumento principal contra o Estatuto das Guardas Municipais, o qual utiliza doutrina consolidada durante a Ditadura Militar, que resume prevenção a policiamento ostensivo, o que se encontra superado em nível mundial por uma concepção muito mais abrangente de ações multidisciplinares de prevenção e que já se encontra recepcionada na Legislação nacional. Por fim, o artigo apresenta algumas das políticas preventivas que tem sido implementadas pela Secretaria de Segurança da cidade de Canoas (RS), com protagonismo da Guarda Municipal, uma experiência concreta dessa nova concepção de Segurança Pública proativa, preventiva, integrada, com planejamento de longo prazo e baseada em evidências, na qual as Guardas atuam de forma integrada com as polícias estaduais e não disputando os mesmos papéis ou copiando os mesmos modelos e concepções.
Vitimização policial: análise das mortes violentas sofridas por integrantes da Polícia Militar do Estado de São Paulo (2013-2014)
Authors: Fernandes Alan
Published: April 2023

A morte de policiais constitui um capítulo à parte entre as mortes ocorridas no Brasil. Isso em razão de sua especificidade, haja vista as condicionantes bastante próprias, quando comparadas à população em geral, que os tornam vítimas em números muitas vezes superiores a outros grupos sociais, e por atingir um grupo particularmente ligado às ações para a promoção de melhores condições de enfrentamento ao crime e à violência junto à sociedade. Com essa preocupação, o presente trabalho apresenta os resultados de uma pesquisa sobre casos de integrantes da Polícia Militar do Estado de São Paulo (PMESP) que morreram por causa violenta, no Estado de São Paulo, em 2013 e 2014. Tendo como inspiração as “teorias de estilo de vida” (life style models) e “oportunidades” (opportunity models), o artigo busca apresentar elementos para discussão de iniciativas que minimizem os riscos a que policiais, em especial os militares, estão sujeitos.
Lei Maria da Penha: necessidade um novo giro paradigmático
Authors: Hein de Campos Carmen
Published: April 2023

O ingresso da Lei Maria da Penha no cenário jurídico promoveu uma ruptura paradigmática tanto quanto à sua formulação quanto às mudanças legais introduzidas. Após dez anos de vigência, estudos apontam diversos obstáculos para a sua implementação, especialmente relacionados às medidas protetivas de urgência, conforme recentes pesquisas indicam. Observa-se que a lógica da centralidade da mulher vem sendo subvertida pela lógica do sistema de justiça penal tradicional. Pesquisa inédita sobre as condições socioeconômicas e a violência doméstica no Nordeste traz novos elementos para a análise sobre a violência doméstica contra mulheres nordestinas. A partir desses estudos, este artigo sustenta a necessidade de um novo giro paradigmático da lei que diminua a incidência do sistema de justiça e privilegie as políticas de prevenção e de assistência.
Estupro no Brasil: vítimas, autores, fatores situacionais e evolução das notificações no sistema de saúde entre 2011 e 2014
Authors: Cerqueira Daniel , Santa Cruz Coelho Danilo , Ferreira Helder
Published: April 2023

Neste artigo analisou-se a evolução das notificações de estupro no país, entre 2011 e 2014, com base nos dados do Sistema de Informação de Agravos de Notificação (Sinan), do Ministério da Saúde. Caracterizou-se ainda o fenômeno segundo esses registros administrativos. Especificamente descreveram-se o perfil de vítimas e autores, os vínculos entre eles, além de outros elementos situacionais. Verificou-se uma estabilidade estatística inaceitável ao longo do período analisado, em que 69,9% das vítimas eram crianças e menores de idade, e mais de 10,0% das pessoas agredidas sofriam de alguma deficiência física e/ou mental. Ao mesmo tempo, aumentou a proporção de casos de estupro coletivo que, em 2014, responderam por 15,8% do total de casos, e esta proporção correspondeu a 25,6% quando os autores eram desconhecidos da vítima. Outro dado estarrecedor mostrou que cerca de 40,0% dos estupradores das crianças pertenciam ao círculo familiar próximo, incluindo pai, padrasto, tio, irmão e avô. Os dados chamam a atenção para a gravidade do problema de violência de gênero no país e para a necessidade de se produzirem informações mais acuradas, de modo a possibilitar a elaboração de políticas públicas mitigadoras que envolvam as muitas agências do Estado, sobretudo no campo educacional.
Machine Learning Approaches of cotact PPG and its Potential Research Challanges
Authors: Lulwani Mumta
Published: April 2023

Machine Learning Approaches of cotact PPG and its Potential Research Challanges
PAAQ: Paired Alternating AcQuisitions for Virtual High Frame Rate Multichannel Cardiac Fluorescence Microscopy
Authors: Marelli François , Ernst Alexander , Mercader Nadia , Liebling Michael
Published: April 2023

In vivo fluorescence microscopy is a powerful tool to image the beating heart in its early development stages. A high acquisition frame rate is necessary to study its fast contractions, but the limited fluorescence intensity requires sensitive cameras that are often too slow. Moreover, the problem is even more complex when imaging distinct tissues in the same sample using different fluorophores. We present Paired Alternating AcQuisitions (PAAQ), a method to image cyclic processes in multiple channels, which requires only a single (possibly slow) camera.We generate variable temporal illumination patterns in each frame, alternating between channel-specific illuminations (fluorescence) in odd frames and a motion-encoding brightfield pattern as a common reference in even frames. Starting from the image pairs, we find the position of each reference frame in the cardiac cycle through a combination of image-based sorting and regularized curve fitting. Thanks to these estimated reference positions, we assemble multichannel videos whose frame rate is virtually increased.We characterize our method on synthetic and experimental images collected in zebrafish embryos, showing quantitative and visual improvements in the reconstructed videos over existing non-gated sorting-based alternatives. Using a 15 Hz camera, we showcase a reconstructed video containing 2 fluorescence channels at 100 fps.
Antimicrobial Resistance Surveillance Technology: Keys to Success
Authors: Carter David J , Byrne Mitchell Keith , Djordjevic Steven , Robertson Hamish , Labbate Maurizio , Morgan Branwen , Billington Lisa
Published: April 2023

The World Health Organisation’s Global Action Plan on Antimicrobial Resistance calls upon countries to strengthen antimicrobial resistance (AMR) surveillance. Australian governments have responded with a plan to implement a nationally coordinated surveillance program that takes a One Health approach. This surveillance program will expand existing capabilities that focus on human health data by introducing animal and environmental data as well as geographic and Artificial Intelligence technologies. Our engagement with global experts in health ethics, law, policy, the social sciences, and health and social care services showed that: Any high-technology surveillance system needs to build and maintain social licence to operate, with the general public and specialist stakeholders all empowered to provide input into the best approach; Privacy is a central focus for ensuring ongoing understanding and support of such a system; The quality of the system needs to be tangible and transparent – from end-user capabilities to data security and rigour of analysis.
Identifying Disengaged Responding in Multiple-Choice Items: Extending a Latent Class Item Response Model with Novel Process Data Indicators
Authors: Welling Jana , Gnambs Timo , Carstensen Claus H.
Published: April 2023

Disengaged responding poses a severe threat to the validity of educational large-scale assessments, because item responses from unmotivated test-takers do not reflect their actual ability. Existing identification approaches rely primarily on item response times, which bears the risk of misclassifying fast engaged or slow disengaged responses. Process data with its rich pool of additional information on the test-taking process could thus be used to improve existing identification approaches. In the present study, three process data variables – text reread, item revisit, and answer change – were introduced as potential indicators of response engagement for multiple-choice items in a reading comprehension test. An extended latent class-item response model for disengaged responding was developed by including the three new indicators as additional predictors of response engagement. In a sample of 1,932 German university students, the extended model indicated a better model fit than the baseline model, which included item response time as only indicator of response engagement. In the extended model, both item response time and text reread were significant predictors of response engagement. However, graphical analyses revealed no systematic differences in the item and person parameter estimation or item response classification between the models. These results suggest only a marginal improvement of the identification of disengaged responding by the new indicators. Implications of these results for future research on disengaged responding with process data are discussed.
Roles of Distractors in Attentional Blink: Impairing Attentional Enhancement and Encoding of Working Memory
Authors: Meng Zong , Chen Qi , Zhou Liqin , Xu Liang , Chen Antao
Published: April 2023

Attentional blink (AB) pertains to the performance of participants with a severe decline in identifying the second target (T2) presented after the first target (T1) reported correctly within 200 to 500 ms in a rapid serial visual presentation (RSVP). After the omission of a distractor (D1) that immediately follows T1, AB was notably reduced; however, the neural processes of this occurrence remain unknown. Using electroencephalogram, this study was conducted by altering whether or not D1 was substituted with a blank. Data from univariate and multivariate analyses revealed that D1 interfered with the attentional enhancement and working memory encoding in both single target RSVP task and dual target RSVP (DTR) task, which were mainly manifested in delayed and weakened P3a and diminished P3b of T1. D1 also interfered with the working memory encoding of T2 under Lag 3 rather than Lag 8 in the DTR task. According to single trail analysis, the amplitude of P3a for T1 and P3b for T2 could be utilized as negative predictors, while the P3b amplitude of T1 could be used as a positive predictor for AB at Lag 3, regardless of the presence or absence of D1. However, the only negative predictor for AB is the P3b amplitude of T2 at Lag 8. These results cannot be easily reconciled with the existing models of AB. The outcomes imply that AB can be attributed to the limited working memory encoding resource, while the quantity of resources is subject to modulation by attention. The D1 hinders the attention enhancement, thereby exacerbating AB.
Widening the Screen: Embodied Cognition and Audiovisual Online Social Interaction in the Digital Age
Authors: Torbjørnsen Regine Rørstad , Hipólito Inês
Published: April 2023

Online audiovisual interaction (AVOI), though minimal, constitutes a form of embodiment. This implies that empathy can be fostered even in non-co-located individuals through online platforms. To address both the limitations and potential of online embodied interaction the article develops a framework for comprehending and cultivating empathy in the virtual realm. It argues that empathy is a skill that is fundamentally tied to our physical and sensory experiences, and therefore, dismisses the Theory of Mind (ToM) model for reducing empathy to mere mental constructs with inherent limitations. Instead, it draws upon Embodied Cognitive Science (ECS) to show that the feeling of disembodiment experienced in AVOI can be conceptualised as a “shrinking of” the social space. With the aim of both widening and deepening this space, the article introduces concrete guidelines that can help enrich the embodied and interactive experience in AVOI. Thereby, highlighting ways of integrating spatiality and physical engagement in the audiovisual online sphere, in addition to nurturing awareness and digital tact.
Government-Industry-Academia Alliance: A multisectoral collaboration for improved nutrition of children and well-being of mothers
Authors:   Department of Science and Technology-Food and Nutrition Research Institute Bicutan, Taguig City, Philippines, Aguila Divorah V. , Dorado Julieta B. ,   Department of Science and Technology-Food and Nutrition Research Institute Bicutan, Taguig City, Philippines, Capanzana Mario V. ,   Department of Science and Technology-Food and Nutrition Research Institute Bicutan, Taguig City, Philippines
Published: April 2023

Introduction: Consistent with the Sustainable Development Goal 17 highlighting partnership to achieve development, this study demonstrated the convergence among government, industry and academe in carrying out a nutrition intervention to improve the nutritional status, knowledge, attitude and behaviour of school community (school children and mothers). Methods: A school-based intervention study comprising of school lunch feeding and nutrition lessons was conducted. Quasi-experimental design was used in the intervention research. Data were analysed using Stata 12.0. Descriptive statistics were generated using the survey module (svy) of Stata. The food and nutrition intervention mix composed of the governmentpartner School Feeding Programme (SFP) and the nutrition education campaign. The government-partner SFP involved lunch feeding of 7 to 9 years old students based on the standardised Pinggang Pinoy® recipes. The government-partner nutrition education component involved teaching of the developed modules to students and their mothers. Results: The intervention resulted in improvements in nutritional status, knowledge, attitude and behaviour of students. Investing an average of Php 15.00 or USD 0.29 (as of 2017) in a school feeding programme following the government-partner food and nutrition intervention mix improved nutritional status and shifted the number of underweight children to normal nutritional status by 25.3% after 120 feeding days. This intervention was implemented through a multisectoral collaboration during the pre-implementation, implementation, and post-implementation phases of the study. Conclusion: Partnerships among stakeholders provided the context towards healthier children as demonstrated by improved nutritional status, knowledge, attitude and behaviour of participants.
MODERN MODEL OF DEVELOPMENT OF LEADERSHIP COMPETENCE OF PEDAGOGICAL STAFF IN THE SYSTEM OF ADVANCED TRAINING
Authors:   Bila Tserkva Institute of Continuous Education of State Higher Educational Institution «University of Education Management», Yermolenko Andrii
Published: April 2023

У статті визначено актуальність розвитку лідерської компетентності педагогічних працівників закладів професійної (професійно-технічної) освіти в контексті модернізації освітнього середовища. Розкрито сутність лідерської компетентності педагога та рівні її сформованості. Визначено зміст сучасної моделі розвитку лідерської компетентності педагогічних працівників професійної освіти в системі підвищення кваліфікації. Наведено приклади практичної реалізації розвитку компетентностей та їх певних компонентів.
PREPARATION OF FUTURE SPEECH THERAPISTS FOR PROFESSIONAL ACTIVITIES USING THE INFORMATION AND COMPETENCE CRITERION
Authors:   Pavlo Tychyna Uman State Pedagogical University, Tsymbal-Slatvinska Svitlana , Babii Inna ,   Pavlo Tychyna Uman State Pedagogical University
Published: April 2023

У статті обґрунтовано важливість застосування інформаційно-компетентнісного критерію у визначенні готовності майбутніх логопедів до професійної діяльності. Вказано, що впровадження безбар’єрного середовища у закладах освіти вимагає застосування нових рівнів діагностики готовності до професійної діяльності майбутніх логопедів. У процесі дослідження готовності до професійної діяльності за інформаційно-компетентнісним критерієм здобувач вищої освіти в процесі вивчення дисциплін занурювався в освітнє середовище інноваційного типу, яке включає систему дидактичних матеріалів і дій викладача у єдиному комплексі. Визначено критерії для оперативного оцінювання результатів і оцінювання ефективності експериментальної роботи: засвоєння студентами професійних знань на різних рівнях: інформаційно-змістовому; процесуально-практичному; розумінні змісту й сенсу знань, мотивів діяльності, що характеризують ставлення до майбутньої професії і до професійних знань та вмінь.
Performance of journalistic professional roles in digital native media news in Spain: Toward a journalistic micro-culture of its own
Authors: Humanes María-Luisa , Alcolea-Díaz Gema , López-del-Ramo Joaquín , Mellado Claudia
Published: April 2023

On the basis of the argument that media platforms generate journalistic micro-cultures and that the nature of journalistic roles is contextual, the possible existence of a journalistic model of digital native media coherent with its own professional culture is addressed. Through a content analysis of a sample of 2,729 news items published in four Spanish digital native media, the presence of six professional roles (interventionist, watchdog, loyal-facilitator, service, infotainment, and civic) is measured and compared with the implementation of these roles in news items published in press, radio, and television (N = 3,362). In addition, the factors that influence the presence of each role in the news of the selected digital native media are analyzed. The results show that digital native media distinguish themselves by putting into practice all the journalistic roles, except for the civic one, to a greater extent than other platforms. Likewise, the service role presents similar levels of presence in the four newspapers analyzed, indicating an approach to audiences more as customers than as citizens. In terms of the factors associated with the presence of each role, we found that the subject matter of the news item has a greater predictive capacity in all roles than other elements. Although we cannot confirm the existence of a journalistic micro-culture, we do find some particularities of the digital native media, mainly stemming from the need to build audience loyalty.
Autoantibodies as Diagnostic Biomarkers for Lung Cancer
Authors: Heera Batool  , Masooma ali  , Salma Khalid  , Bilal Ahmad Mian  , Irfan Ullah
Published: April 2023

Lung cancer is one of the leading causes of death worldwide, with two main types of the disease - non-small cell lung malignancies and small cell lung cancer - accounting for approximately 85% and 15% of mortalities respectively. Like other diseases and infections, lung cancer can also be diagnosed by tumor markers that are produced by Lung cancer patients. Antibodies from five classes of antibodies are IgG, IgM, IgA, IgD, and IgE are produced against their own antigens known as autoantibodies, have their role in stopping or minimizing cancer, and play a vital role in diagnostic analysis of lung cancer. To diagnose lung cancer, a panel of six antibodies p53, CAGE, GBU4–5, NY-ESO-1, Annexin 1, and SOX2 has been studied to monitor lung cancer with a sensitivity of 38% and a specificity of 88 percent. Patients with lung cancer can produce p53 antibodies, an altered form of tumor suppressor known as Tp53. Other antibodies like NY-ESO 1, Annexin A1 and SOX2 can also be used as diagnostic biomarkers for the detection of lung cancer. In this review, we study all possible antitumor or Autoantibodies of lung cancer and their use in earlier detection of a lung cancer diagnosis.
Percepciones de los docentes de inglés chilenos acerca de los libros de texto utilizados en establecimientos escolares públicos y privados en Chile
Authors: Lizasoain Andrea , Vargas Mutizabal Jorge
Published: April 2023

The assessment of textbooks is essential to understand their function, features, and teaching mechanisms, as well as to be able to employ them efficiently. However, teachers use them intuitively, without any instruction to facilitate the learning process. This study explores teachers" perception on EFL textbooks in order to understand the object of study from the teachers" point of view. A survey was conducted to 484 participants from different educational contexts. Findings show that teachers in the public system perceive that government-delivered textbooks do not favor the learning process of English as a second language, mainly, because they are not adaptable to the public classroom diversity and they are not mismatched with the national curriculum. In contrast, teachers who work with textbooks selected by themselves are more satisfied, because they can choose the textbooks based on their students" proficiency levels and their schools educational projects. This means that schools must have textbooks that can adapt to diversity and also promote effective learning.
Гастроінтестинальні ускладнення хіміотерапії у хворих на «тричі негативний» метастатичний рак грудної залози
Authors: Sivak L. A. , Maidanevych N. M. , Lyalkin S. A. , Askolskyy A. V. , Kasap N. V. , Klimanov M. Y.
Published: April 2023

Вивчення літературних джерел свідчить про те, що за останні 20 років нудота та блювання залишаються двома основними побічними ефектами хіміотерапії, що значно погіршуєть якість життя хворих і нерідко є причиною відмови хворих від лікування. З розвитком хіміотерапії, введенням в практику ряду нових цитостатичних препаратів, покращанням результатів лікування нині особливо актуальною є проблема якості життя хворих на онкологічні захворювання, визначення прогностичних факторів ускладнення лікування, особливо в процесі проведення хіміотерапії.
Модифікована методика резекційного артродезу у хворих з наслідками уражень надп’ятково-гоміл кового суглоба
Authors: Omelchenko T. M. , Buryanov O. A. , Lyabakh A. P.
Published: April 2023

Проаналізовано результати резекційного артродезу надп’ятково-гомілкового суглоба у 172 пацієнтів з тяжкими наслідками його пошкоджень і захворювань. В основній групі (79 осіб) застосована модифікована методика артродезу, що включала резекцію нижньої третини малогомілкової кістки і медіальної кісточки, резекцію суглобових поверхонь в горизонтальній площині з установкою стопи відносно осі великогомілкової кістки під кутом 90° в сагітальній площині, 0–5° вальгуса, 5° зовнішньої ротації, а також зміщення стопи назад на 10–15 % сагітального розміру блоку таранної кістки. У групі порівняння (93 особи) застосовували традиційну методику з установкою стопи після резекції під кутом 95–100° у сагітальній площині, у решті площин дотримувалися нейтрального положення. Середній термін оцінки результатів становив (2,1 ± 0,4) року. Функціональні результати оцінювали за AOFAS для заднього і середнього відділів стопи, кісткове зрощення в зоні резекції – за даними рентгено- та комп’ютерної томографії. Результати за AOFAS в основній групі в межах терміну спостереження становили для заднього відділу (76,2 ± 1,8) бала, для середнього відділу стопи – (82,3 ± 1,70) бала, що відповідає хорошому результату. У групі порівняння результати за AOFAS були гіршими – відповідно (58,4 ± 1,2) бала і (57,1 ± 1,9) бала, що відповідає задовільному результату. Термін настання зрощення кістки в зоні резекції у пацієнтів основної групи становив у середньому (9,2 ± 0,8) тиж, у групі порівняння – (11,6 ± 1,2) тиж.
Результати велоергометричної проби у дітей з первинною артеріальною гіпертензією на фоні комплексного лікування із застосуванням магне-В6
Authors: Marushko Yu. V. , Hyschak T. V. , Zlobynets A. S. , Boyko N. S.
Published: April 2023

Застосування велоергометрії в динаміці лікування хворих з первинною артеріальною гіпертензією (ПАГ) дає можливість оцінити реакцію артеріального тиску (АТ) на дозоване фізичне навантаження, дати характеристику толерантності до фізичного навантаження, процесів споживання кисню міокардом і міокардіальних резервів, що має значення для контролю ефективності терапії. Метою роботи було покращання результатів лікування ПАГ шляхом включення до стандартної схеми лікування комбінованого препарату магнію і піридоксину (Магне-В6) і контролю за ефективністю терапії із застосовуванням велоергометрії. При обстеженні 43 пацієнтів 10–17 років виявлено, що при ПАГ у дітей спостерігається зниження функціонального резерву міокарда та його підвищене і неекономне витрачання під час фізичного навантаження. Дефіцит магнію при ПАГ у дітей поглиблює порушення адаптації серцево-судинної системи до фізичного навантаження, що проявляється у зниженні функціонального резерву серця за пробою Руф’є, низькому рівні показників загальної працездатності і функціональних резервів за даними велоергометрії. Включення до стандартної схеми лікування дітей з лабільною і стабільною ПАГ І ступеня препарату Магне-В6 сприяє покращанню результатів лікування. Спостерігається зменшення коливань систолічного АТ, що провокуються фізичним навантаженням, підвищується активність киснетранспортної системи, покращується переносимість фізичного навантаження.
Influence of agroclimatic conditions of the spring-summer vegetation on the formation of winter wheat yield under the needs of the forest-steppe of Western Siberia
Authors: Musinov K. K. , Surnachev A. S. , Kozlov V. E.
Published: April 2023

Air temperature and moisture availability are the main environmental factors that have a significant impact on the development of plants during the growing season. The aim of this study is to study the relationship of yield and its constituent elements with climatic factors and to show their role in the formation of productivity of winter wheat. The research was carried out in 2009-2022 in the fields of the Siberian Research Institute of Plant Growing and Breeding, a branch of the Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences. The research material was varieties and breeding lines of winter soft wheat of competitive variety testing. A positive dependence of the amount of precipitation and the hydrothermal coefficient in the interphase period “resumption of vegetation - trumpeting” with the duration of the growing season (r = 0.78; r = 0.73), productive tillering (r = 0.59; r = 0.64) was revealed, plant height (r = 0.60; r = 0.58), number of grains per plant (r = 0.66; r = 0.67). The correlation coefficient of productivity with the HTC and the amount of precipitation was r = 0.66 and r = 0.67, respectively, in the period of “booting - earing”. There is a significant negative correlation of resistance to lodging with both HTC and precipitation (r = -0.63; r = -0.56). The correlation coefficient of the HTC and the amount of rainfall with resistance to lodging in the interphase period “heading - wax ripeness” was significant (r = 0.55). HTC in the period “heading - wax ripeness” was directly proportional to the grain size index r = 0.60 and the amount of precipitation with a mass of 1000 grains r = 0.58. For the entire period of spring-summer vegetation, the correlation coefficient of the HTC and the amount of rainfall with the duration of the growing season was r = 0.63 and r = 0.65, respectively, with a height of r = 0.71 and r = 0.72, resistance to lodging r = -0.68 and r = -0.64 and overall bakery score r = -0.62 and r = -0.63. The amount of precipitation throughout the entire spring-summer vegetation has a positive effect on the grain weight per plant (r = 0.57). The sum of effective temperatures has a positive relationship with the nature of the grain in the period of “booting - heading” (r = 0.65). The correlation coefficient of the sum of effective temperatures with the amount of gluten in the period “heading - wax ripeness” r = 0.74 for the entire spring-summer vegetation r = 0.67.