bluuebunny/crossref_metadata_2025_split huggingface dataset:
Alimentos e preparações culinárias regionais e da sociobiodiversidade na alimentação escolar brasileira
Authors: Cipriani Débora Cristina , Barros Ana Carolina Alencar , Gabriel Cristine Garcia 
Published: August 2023

Objetivo: Discutir como a temática dos alimentos e preparações culinárias regionais e da sociobiodiversidade está inserida na alimentação escolar pública brasileira, por meio do Programa Nacional de Alimentação Escolar (PNAE). Métodos: Revisão integrativa da literatura com buscas nas bases COCHRANE Library, EMBASE, SciELO, LILACS, PubMed/MEDLINE, Scopus, Web of Science e Google Acadêmico. A coleta de artigos foi realizada durante os meses de junho e julho de 2022 e limitou-se a estudos publicados no período entre 2009 e 2022. Os artigos foram agregados em categorias segundo o enfoque ou objetivo de estudo. Resultados: Foram encontrados 2881 resultados e incluídos 21 artigos. Observou-se predominância de abrangência local nos estudos e abordagem qualitativa (42,8%; n=9), com maior recorrência da categoria “presença nos cardápios do PNAE’’ (38,1%; n=8), seguido pelas categorias ‘’interação com os diferentes atores do PNAE” (33,3%; n=7) e “testes de aceitabilidade com estudantes do PNAE’’ (28,6%; n=6). Conclusão: Observou-se a insuficiência de estudos sobre esta temática e, dentre os artigos encontrados, pontua-se a heterogeneidade e fragilidade no arcabouço teórico e nos procedimentos metodológicos. Recomenda-se a realização de mais estudos na área com o objetivo de obter um panorama mais amplo da situação atual da temática no PNAE e explorar as potencialidades dos alimentos e preparações culinárias regionais e da sociobiodiversidade na alimentação escolar brasileira.
Do fundo do mar, rastejos na terra
Authors: Cavalini Marcela , Mussolin Sofia 
Published: August 2023

Uma rede formada entre artistas e moradores da Colônia Z-10 - Rio de Janeiro, primeira colônia pesqueira do Brasil, emergiu enquanto convivência no laboratório artístico do projeto Territórios Sensíveis, que propõe a atenção ao cultivo das relações como processo efetivo de ação artística. A obra-processo, nomeada “Feiticeira”, habitou e aprendeu com o meio, investigou onde e como se processa a vida de seus moradores, bem como compartilhou da inscrição de mundo daquele local, uma soma para fazer corpo, movimento e escuta múltipla da experiência de ser morador e pescador naquele território. A construção da rede tornou-se guia para o desenvolvimento de processos artísticos junto àquele território e compôs o objeto de performance e metodologia da pesquisa. Uma rede de pessoas, imagens e sons junto à materialidade da rede de pesca.
Searching for Possible Design Solutions to Extend the Service Life of the HPC of a Powerful NPP Turbine after Damage to the Rotor Blades
Authors: Usatyi Oleksandr , Chernousenko Olga , Peshko Vitalii 
Published: August 2023

The aim of this research was to analyze and evaluate possible design solutions for the flow path of the high-pressure cylinder (HPC) of the K-1000-60/3000 turbine and the possibility of their short-term implementation in a nuclear power plant after an accidental destruction of the working blades of the last stage of the HPC in conditions of the shortage of generating capacities and a tense operation state of the power system. To achieve the set goals, an appropriate methodology was developed; a mathematical model of thermo-and gas dynamic processes in the flow path of a steam turbine was improved. To make appropriate decisions on changing the design of the turbine, the necessary computational studies of the HPC of the K-1000-60/3000 turbine of the designed structure, the structure without rotor blades of the 5th stage and the structure with four first stages (without the fifth stage) were carried out for both turbine steam flows. The results of the study of thermo- and gas dynamic parameters of the flow showed the presence of differences in the operating conditions of all turbine stages, and these are the most significant for the 4th and 5th stages. A significant redistribution of thermal differences in the stages, and a decrease in the internal power of the HPC of the turbine by 35.5 MW and 6.6 MW respectively, as well as a decrease in their internal efficiency by 11.8 % and 2.1 %, respectively, were noted. Taking into account all the aspects related to the operation of the power unit, the most successful solution for the rapid resumption of operation of a powerful turbine plant used by a nuclear power plant after an accidental damage to the working blades is a HPC design without the working blades of the fifth stage. It is planned to carry out additional studies of the HPC design by replacing the nozzle apparatus of the fifth stage with an appropriate simulator.
PENGARUH PENGGUNAAN MEDIA PEMBELAJARAN KOMIK DIGITAL TERHADAP MOTIVASI DAN PRESTASI MAHASISWA JURUSAN ILMU KOMUNIKASI
Authors: Rohmah Nurul , Anom Erman 
Published: August 2023

Sesuai dengan kemajuan teknologi bahan ajar dapat berupa non cetak. artinya potensi teknologi dapat menjadi alat yang ampuh untuk menstraformasikan pembelajaran. Alat penyampaian informasi inilah yang disebut dengan media pembelajaran. Penelitian ini dilaksanakan dengan tujuan untuk mengetahui seberapa besar pengaruh media pembelajaran komik terhadap motivasi dan prestasi. Metode penelitian ini menggunakan metode penelitian survei. Dalam hasil penelitian dimaksudkan untuk memberikan gambaran umum mengenai penyebaran/distribusi data. Data dari motivasi mahasiswa diperoleh berdasarkan hasil angket/kuesioner. Angket terdiri dari 40 butir. Untuk menentukan uji penelitian validitas besarnya nilai r tabel dengan ketentuan df= (N-2) = 119 – 2 = 117 dengan tingkat signifikansinya 0,1801. Hasil analisis menunjukan 34 item pernyataan valid dan 6 item tidak valid. Hasil uji reliabilitas dengan metode alpha croanbach diukur dari SPSS 25.0 maka dari itu hasil penelitian memiliki hubungan kuat dengan nilai 0,717. Analisis regresi linear digunakan untuk menguji pengaruh variabel bebas dan variabel terikat. Jika nilai pada kolom sig =0,00 lebih kecil dari 0,05 artinya variabel X berpengaruh terhadap variabel Y. Jika nilai t hitung Y1= 3,962 > 1,980, siginifikasi variabel motivasi terhadap variabel artinya variabel motivasi berpengaruh siginifikan terhadap motivasi. Sedangkan nilai koefisien regrasi variabel prestasi Y2 adalah t hitung sebesar 5,758 dengan t tabel 1,980, siginifikasi variabel prestasi yang artinya variabel prestasi berpengaruh. Diketahui nilai sign 0,000 < 0,05 dan nilai f hitung 37,094 > 3,07, sehingga dapat disimpulkan bahwa hipotesis diterima berarti dapat pengaruh antara variabel X1 terhadap Y1 dan Y2. Nilai R Square 0,390 atau 39,0% yang menunjukan bahwa terdapat pengaruh yang simultan antara variabel X1 terhadap Y1 dan Y2 sebesar 39,0% . Hasil penelitian dapat disimpulkan bahwa sebagian besar mahasiswa di Fakultas Ilmu Komunikasi Universitas Ibnu Chaldun memiliki motivasi dan prestasi yang tinggi dengan nilai validitas yang dominan dengan signifikansinya 0,1801 dan memiliki nilai interprestasi koefisien korelasi tingkat yang kuat.
Methodology for Determining the Effective Thickness of the Cemented Layer of Steel
Authors: Sandomirski S. G. , Val’ko A. L. , Rudenko S. P. 
Published: August 2023

Highly loaded transmission gears are cemented and hardened. An important parameter of the hardened cemented layer is its effective thickness hef . Metal banding and the unavoidable instrumental error in hardness measuring have a great influence on the reliability of hef determination. The purpose of this article was to develop a methodology to improve the reliability of determining of the effective thickness hef of the hardened layer in steel after carburizing and quenching.The value of hef is the distance h from the surface of the product to the hardness zone of 50 HRC. The article substantiates that approximation of hardness change from the distance h to the product surface will allow to obtain a more reliable dependence of hardness change in the investigated area when making hardness measurements in a wider range of distance h. Therefore, to increase the reliability of hef determination, results of the HV0.5 hardness measurement in an extended range of changes in h in the vicinity of the analyzed zone were used. The HV0.5 measurement results are converted to HRC hardness values using the formula recommended by the international standard. The HRC(h) distribution of HRC hardness values in the measurement area is interpolated by a second-degree polynomial which physically correctly reflects the change in metal hardness in the analyzed area. The resulting polynomial is used to determine of the distance hef at which the hardness takes on a value of 50 HRC. The methodology was used to determine the hef of an 18KhGT steel gear wheel after carburizing and quenching. It is shown that results of two independent measurements of the hef sample differ from each other by 0.003 mm. This is significantly less than the permissible error of 0.02 mm of the hef determination according to the standard technique. The error of hef determination is reduced by extending the range of variation of h and statistically valid interpolation of the monotonic change in hardness with the distance from the surface of the item in the measurement area. The developed method of determining the effective thickness hef of the hardened steel layer consists in determining the distribution of its hardness in the expanded vicinity of the hef area, approximating the obtained dependence by a polynomial of the second degree and solving the square equation obtained with its use. The technique provides a significant reduction in the influence of the structural banding of the metal and the inevitable error in measuring hardness on the result of determining the hef . Its application will allow to optimize the cementation regimes of gear wheels to increase their service life.
Physician's conceptions of the decision-making process when managing febrile infants ≤60 days old: a phenomenographic qualitative study
Authors: Orfanos Ioannis , Lindkvist Rose-Marie , Eklund Erik A , Elfving Kristina , Alfvén Tobias , Koning Tom J , Castor Charlotte 
Published: August 2023

Abstract
Background
The management of febrile infants aged ≤ 60 days and adherence to guidelines vary greatly. Our objective was to describe the process of decision-making when managing febrile infants aged ≤ 60 days and to describe the factors that influenced this decision.
Methods
We conducted 6 focus group discussions with 19 clinically active physicians in the pediatric emergency departments of 2 university hospitals in Skåne region, Sweden. We followed an inductive qualitative design, using a phenomenological approach. A second-order perspective was used, focusing on how physicians perceived the phenomenon (managing fever in infants) rather than the phenomenon itself. The transcribed interviews were analyzed using a 7-step approach.
Results
Performing a lumbar puncture (LP) was conceived as a complex, emotionally and mentally laden procedure and dominated the group discussions. Three central categories emerged as factors that influenced the decision-making process on whether to perform an LP: 1) a possible focus of infection that could explain the origin of the fever, 2) questioning whether the temperature at home reported by the parents was a fever, especially if it was ≤ 38.2°C, and 3) the infant’s general condition and questioning the need for LP in case of well-appearing infants. Around these 3 central categories evolved 6 secondary categories that influenced the decision-making process of whether to perform an LP or not: 1) the physicians’ desire to be able to trust their judgement, 2) fearing the risk of failure, 3) avoiding burdensome work, 4) taking others into account, 5) balancing guidelines and resources, and 6) seeing a need to practice and learn to perform LP.
Conclusions
The difficulty and emotional load of performing an LP were important factors that influenced the decision-making process regarding whether to perform an LP. Physicians highlighted the importance of being able to rely on their clinical judgment and make independent decisions. Guidelines may consider allowing a degree of flexibility and independent thinking to take into account patients’ characteristics and needs.
Assessing Anaerobic Speed Reserve: A Systematic Review on the Validity and Reliability of Methods to Determine Maximal Aerobic Speed and Maximal Sprinting Speed in Running-based Sports
Authors: Thron Maximiliane , Düking Peter , Ruf Ludwig , Härtel Sascha , Woll Alexander , Altmann Stefan 
Published: August 2023

Abstract
Purpose.Locomotor profiling using anaerobic speed reserve (ASR) enables insights into athletes’ physiological and neuromuscular contributing factors and prescription of high-intensity training beyond maximal aerobic speed (MAS). Several methods have been developed to assess characteristics of ASR, i.e., methods to assess MAS and maximal sprinting speed (MSS). This systematic review aimed to determine the validity and reliability of different methods to assess MAS and MSS in running-based sports.
Methods. A comprehensive search of the PubMed and Web of Science databases was conducted according to the PRISMA guidelines. Studies were included if they reported data on validity and/or reliability for methods to assess MAS or MSS.
Results. 58 studies were included with 28 studies referring to MAS and 30 studies to MSS. Regarding MAS, cardio-pulmonary exercise testing (CPET; n=19), time trials (n=20), incremental continuous field tests (n=12) and shuttle runs (n=10) were examined. Different methods for CPET yielded different values (four out of seven studies) of MAS (Cohen’s d (ES)=0.83–2.8; Pearson’s r/intraclass correlation coefficient (r/ICC)=0.46–0.85). Criterion validity (against CPET) of different field tests showed heterogeneous results (ES=0–3.57; r/ICC=0.40–0.96). Intraday and interday reliability was mostly acceptable for the investigated methods (ICC/r>0.76; CV<16.9%). The studied methods to assess MSS included global or local positioning systems (GPS; LPS) (n=18), timing gates (n=8), radar/laser (n=3), treadmills (n=2), and video analysis (n=2). Radar and laser measurements (one out of one studies), timing gates (two out of two studies), and video analysis showed mostly good criterion validity (two out of two studies) (ES=0.02–0.53; r/ICC=0.93–0.98) and reliability (r/ICC>0.83; CV<2.43%). Criterion validity (ES=0.02–7.11) and reliability (r/ICC=0.14–0.97; CV=0.7–9.77%) for GPS or LPS (seven out of nine studies) and treadmill sprinting (one out of one studies) was not acceptable in most studies.
Conclusion. The criterion validity of incremental field tests or shuttle runs to examine MAS cannot be confirmed. Results on time trials indicate that distances adapted to the participants’ sporting background, fitness, or sex might be suitable to estimate MAS. Regarding MSS, only sprints with radar or laser measures, timing gates, or video analysis provide valid and reliable results for linear sprints of 20 to 50 m.
Measurement-Based Methane Inventory for Upstream Oil and Gas Production in Alberta, Canada Reveals Higher Emissions and Starkly Different Sources than Official Estimates
Authors: Conrad Bradley , Tyner David , Li Hugh , Xie Donglai , Johnson Matthew 
Published: August 2023

Abstract

As a signatory of the Global Methane Pledge, Canada has committed to > 75% reductions in oil and gas sector methane emissions by 2030. Regulations are being developed to meet this critical objective, but are hampered by uncertainty in true levels of emissions and source breakdowns. This paper presents a measurement-based, source-resolved, hybrid top-down/bottom-up methane inventory for conventional upstream oil and gas operations in Canada’s largest oil and gas-producing province, Alberta. The derived 2021 inventory of 1338 kt/y is approximately 1.8× the most recent official federal inventory and matches independent top-down aerial mass-balance and satellite estimates within measurement uncertainties. Moreover, the breakdown of major sources is starkly different from those assumed in the federal inventory, with venting (e.g., uncontrolled tanks, pneumatics, unlit flares) responsible for almost two-thirds of emissions implying important opportunities for mitigation. Derived methane intensities are similar to basins in the U.S.A. but approximately 4× those in the neighbouring province of British Columbia. Quantified methane intensities of individual anonymized companies reveal order-of-magnitude differences in performance at directly comparable facility types, highlighting the need for independent monitoring, reporting, and verification (MRV) to ensure collective success in reducing emissions.
Effective transformation of wild tomato species Solanum pimpinellifolium mediated by Agrobacterium tumefaciens
Authors: Xu Maomao , Liu Jiecai , Li Xin , Liu Lei , Huang Zejun , Wang Xiaoxuan , Guo Yanmei , Du Yongchen , Zhang Hui , Su Wenyue , Zhang Min , Chen Yisong , Li Junming , Gao Jie 
Published: August 2023

Abstract
Genetic transformation has become a routine method for understanding the growth and development of crops and promoting sustainable agricultural production. The standard transformation methodology for tomato crops, as a model plant, has been extensively established. However, most studies have focused on tomato cultivars with typical genotypes, while less information is known about wild species that have the potential for crop improvement. This study aimed to construct an effective transformation system for the wild species Solanum pimpinellifoliumbased on a routine method.The results indicate that the addition of acetosyringone promotes shoot regeneration in the wild species S. pimpinellifolium. A reduced IAA content along with an appropriate Zeatin level plays a key role in improving regeneration efficiency. Using a lower bacterial solution (OD600 = 0.25) and a shorter infestation time (15 minutes) may also benefit the regeneration efficiency. Although the transformation of S. pimpinellifolium has shown genotype dependence, a medium named B2 in this study shows potential for broad applicability in the wild species S. pimpinellifolium. The findings from this study will contribute to the understanding of wild species and their potential role in tomato improvement.
Implementing H-shaped Antenna for Ku-band Applications by Multilayer Perceptron with Reptile Search Algorithm
Authors: Kumar Jakkuluri Vijaya , Shaby S.Maflin 
Published: August 2023

Abstract

In many applications such as aerospace systems, satellites, mobile radar, and other wireless applications, the Microstrip patch antenna (MPA) plays an important role due to its properties like simplicity, lightweight, low cost of production, and compact structure. Low gain, narrow frequency bandwidth, and high return loss are the shortcomings in the existing microstrip patch antenna (MPA) design approaches. Moreover, the developed models of the antenna are hard to design and larger in size. The antenna's geometrical specifications should be optimized to address this problem. In the proposed approach Reptile Search Algorithm (RSA) based Multilayer perceptron (MLP) neural network is employed to design the H-shaped antenna for Ku-band applications. The multilayer perceptron neural network is employed to calculate the fitness value of the RSA. To train the MLP neural network, the dataset is generated using MATLAB software that contains values of the substrate height, dielectric constant, length of the patch, resonant frequency, width of the patch as the input parameters, and the values of gain and return loss as the output parameters. The performance of the optimally designed antenna with the proposed approach is evaluated in terms of the radiation pattern, return loss, Voltage Standing Wave Ratio (VSWR), gain, computation time, directivity, and convergence speed. The experimental and simulation results of the proposed approach show better performance with 8.89 dB gain, -33.06 dB return loss, and 1.07 VSWR.
Contactless exercise intervention in prenatal and postnatal period during COVID-19 lowers the risk of postpartum depression
Authors: Hwang Dong-Joo , Cho Joon-Yong , Hyun Ah-Hyun 
Published: August 2023

Abstract

The COVID-19 pandemic has had a substantial adverse impact on the physical and mental health of pregnant and postpartum women, thereby increasing the risk of postpartum depression (PPD). This study aimed to evaluate the effectiveness of a continuous contactless exercise intervention in reducing the risk of PPD during the prenatal and postnatal periods. The study utilized a real-time contactless exercise program consisting of Pilates for eight weeks during pregnancy and eight weeks after childbirth. Metabolic and psychological factors related to PPD, including pain, stress, and stress-response markers, were analyzed. The results showed that the exercise intervention significantly alleviated PPD by improving pain and stress factors caused by physical structural imbalances in postpartum women. Additionally, the intervention improved the metabolic imbalances commonly observed after childbirth, including reductions in triglyceride (TG), insulin, leptin, and cortisol levels, which are recognized risk factors for PPD. Taken together, these findings suggest that contactless online exercise interventions can mitigate postpartum depression by addressing metabolic dysregulation that frequently occurs after delivery, especially in situations of social isolation caused by the pandemic.
Effect of environmental factors on accumulation of trace metal in a typical shale gas exploitation area: A comprehensive investigation by empirical and geodetector models
Authors: Bai Hongcheng , Li Yan , Lu Peili , Li Yutong , Zhang Lilan , Zhang Daijun , Wang Xing , Zhou Yuxiao 
Published: August 2023

Abstract
Whether a certain relationship is exist between shale gas exploitation and accumulation of trace metals in soil is a controversial issue in recent years. To date, few study clearly reveal the intrinsic correlations between environmental factors and accumulation of trace metals in soil of shale gas exploitation area. This study investigated the content and pollution level of trace metals in a typical shale gas exploitation area, and the relationships between environmental factors and spatial distribution of trace metals were evaluated. The results showed that there were 10.33%-25.87% proportion of soils were considered as pollution by trace metals, and the content of Ba contributed the most to the pollution index (Pn). Although SOM and CEC were considered as dominant factor influencing the content of trace metals, the results of MLR model based on natural factors strengthen the need for considering anthropogenic factors. Furthermore, the interaction between natural and ananthropogenic factors showed a siginifacnt nonlinear enhancement effect on accumulation of Cr, Ba and Sr, and the highest value of explanatory power (q) was 0.38 for SOM and distance. This study proved that the potential metal contamination was related to shale gas exploitation and provide reference for controlling soil pollution in shale gas exploitation area and making management strategy.