bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spatial patterns and determinants of low utilization of delivery care service and postnatal check-up within 2 months following birth in Ethiopia: Bivariate analysis
Authors: Awoke Shegaw Mamaru , Getaneh Frezer Tilahun , Derebe Muluwerk Ayele 
Published: January 2024

Background
Home delivery is a nonclinical childbirth practice that takes place in one’s home with or without traditional birth attendants and postnatal care is the care given to the mother and her newborn baby; according to world health organization (WHO), the postnatal phase, begins one hour after birth and lasts six weeks (42 days). This paper aimed to study the spatial pattern and determinant factors of low utilization of delivery care (DC) services and postnatal check-up (PNC) after live births in Ethiopia.

Methods
This study used the 2016 Ethiopian Demographic and Health Survey data as a source. A total weighted samples of 11023 women-children pairs were included. The bivariate binary logistic regression analyses with spatial effect were modeled using SAS version 9.4 and ArcGIS version 10.8 was used for mapping.

Results
The spatial distribution of low utilization of delivery care service and postnatal check-up were significantly clustered in Ethiopia (Moran’s I statistic 0.378, P-value < 0.001 and 0.177, P-value < 0.001 respectively). Among 11023 children-women pair, the prevalence of home delivery and no postnatal check-up within two months following birth were 72.6% and 91.4% respectively. The Liben, Borena, Guji, Bale, Dolo and Zone 2 were predicted to have high prevalence of home delivery and part of Afder, Shabelle, Korahe, Dolo and Zone 2 were high risk areas of no postnatal checkup.

Conclusion and recommendations
Lack of occupation, region, large family size, higher birth order, low utilization of antenatal care visit, unable to access mass media, big problem of health facility distance and the spatial variable were found to be jointly significant predictors of low utilization of DC and PNC in Ethiopia. Whereas older age, being reside in rural area and low wealth status affects delivery care service utilization. We suggest health providers, policy makers and stakeholders consider those variables with priority given to Liben, Borena, Guji, Bale, Dolo, Zone 2, Afder, Shabelle and Korahe, where home delivery and no PNC were predicted relatively high. We also recommend researchers to conduct further studies using latest survey data set.
RESEARCH OF ELEMENT COMPOSITION OF ARONIA MITCHURINA (ARONIA MITCHURINII SKVORTSOV & MAITULINA) LEAVES
Authors: Pugacheva Ol'ga Valeriyevna , Brezhneva Tat `yana Aleksandrovna , Slivkin Alexey Ivanovich 
Published: January 2024

The aim of the study was to study the composition and ability to accumulate various elements in the leaves of aronia Mitchurina for scientific rationale of the possibility of their use in medicine and pharmacy.
The composition and ability to accumulate various elements in the leaves of aronia Mitchurina harvested in the Tambov region were studied. The elemental composition of the leaves of aronia Mitchurina and the soil from the place of plant growth was studied by inductively coupled plasma chromato-mass spectrometry. In the raw material was found 61 chemical elements, including almost all essential: macronutrients, with the predominance of calcium, potassium, phosphorus and magnesium; trace elements, with the predominance of iron, zinc, sodium, manganese.
It was found that the ratio of elements in the soil from the place of growth and in the raw material are different. Coefficient of biological accumulation for each element were estimated, on the basis of which all elements are classified into five groups. The elements of energetic accumulation include phosphorus, and the elements of highly accumulation include calcium, potassium, and zinc. The ability of chokeberry leaves to accumulate zinc in higher concentrations (64.32 µg/g) than other species of herbal raw materials allows us to view them as a possible natural source of this element in hypoelementosis associated with zinc deficiency in the body.
Determined in the analysis is the content of toxic elements standardized in plant raw materials: lead, cadmium, mercury, arsenic. Their contents do not exceed the maximum permissible concentration limits given in the normative documentation.
Selection of output inverter for microgrid
Authors: Mirgorodskaya Ekaterina E. , Mityashin Nikita P. , Artyukhov Ivan I. , Mamonychev Michael E. , Eryushev Pavel A. , Kozhanov Roman V. 
Published: January 2024

The paper considers the problem of a microgrid output inverter selecting, when information about operating conditions is uncertain. The following factors are considered as sources of uncertainty in information about operating conditions: the possibility of the load increasing in the area, for which the microgrid is being designed, the prospects for its integration into the local power supply system, based on the microgrid, operating in the given region, as well as possible changes in the element base due to import substitution.
A system of criteria and a methodology for optimal selection have been developed, based on a combination of multi-vector optimization approaches and the hierarchy analysis method. The quality criterion of generated energy, the criterion of reliable operation in conditions of information uncertainty and the criterion of economic indicators were cho- sen as vector criteria. The total number of scalar criteria that are components of the specified vector criteria is seven. At the first stage of selection, an algorithm is used for expert assessment of the importance of vector criteria and their scalar components, as well as values of these criteria for compared alternatives, using of the hierarchy analysis method. At the second stage of selection, considered inverters are ranked according to a global criterion, calculated based on results of the first stage. The technique is demon- strated by choosing between three well-known schemes of autonomous inverters: a voltage inverter with PWM-shaping of the output curve, a current inverter with a variable struc- ture and a group multilevel inverter based on a universal source of levels, when they are operating in autonomous or integrated into the system of other microgrid modes. The de- scribed selection technique can be used, when other microgrid conversion equipment de- vices are selecting.
Study on stress distribution and extrusion load threshold of compressed filled rock joints
Authors: Wang Pengpeng , Du Shigui , Li Gan , Luo Zhanyou 
Published: January 2024

Abstract
The distribution of stress and the normal extrusion load threshold in weak interlayer are crucial for direct shear test of filled rock joints, but there is a lack of theoretical research in this area. First, an analytical solution for stress distribution was derived using a semi-inverse method. Then, it is compared by the numerical simulation method. Finally, the influence of the width and thickness of weak interlayer on the extreme values of stress components was analyzed, and the distribution pattern of the normal extrusion load was discussed. The results show that under the same conditions, the analytical solution and the numerical simulation results are in good agreement. The maximum horizontal stress in the weak interlayer decreases with increasing width and increases with increasing thickness, while the change of the minimum is opposite. The normal extrusion load increases first and then decreases along the width direction of the weak interlayer. By comparing the normal extrusion load with the empirical value, the mechanism of extrusion failure in the weak interlayer is revealed.
Experimental study of improving hot mix asphalt reinforced with carbon fibers
Authors: Rasheed Sozan S. , Nsaif Maha H. , Abduljabbar Ahmed S. 
Published: January 2024

Abstract
Using hot asphalt mixtures (HMAs) is very common in flexible pavement construction due to its mechanical properties of durability, water resistance, and riding comfort. It proved to substantially reduce the applied stresses from vehicular traffic to subgrade. However, these types of pavements can undergo different types of distress such as cracks and rutting, which could be the result of weak mixing of the asphalt mixture and/or increasing traffic volumes. Therefore, the need to improve the mechanical properties of hot mix asphalt mixtures using different additives and modifiers was raised. Different materials have been recently used to reinforce asphalt concrete. For the construction of road pavements, using fibers in a HMA has emerged as a significantly more appealing option due to their strengthening properties. The alteration of asphalt binder is expected to benefit from carbon fibers (CFs) more than other types of fiber. In this study, an experimental study is carried out to investigate the effects of adding CFs to the asphalt mixtures with grades of (40–50) which comply with the Iraqi specifications. Twelve Marshall specimens were tested for stability and flow, 24 specimens for moisture failure testing, and two specimens for the rutting resistance of the asphalt mixture. The optimum bitumen content of 5.0% was used to prepare all the specimens. Different percentages of CFs by weight of asphalt (0, 0.2, 0.4, and 0.6%) were implemented to study the performance of paving mixtures. The way to mix the disperse the CFs homogeneously is by dry state (after separating the fibers manually) for 10 min, and then the asphalt was added; the mixture was heated to 165°C and mixed for at least 20 min. The results showed that the optimum properties of the HMA were reached by adding 0.4% CF to the HMA. Marshall stability was increased by 48%, the flow was decreased by 23%, and in addition, rut depth was reduced by 50%. The unit weight and the percentage of air voids in the mix were maintained and, along with other mix properties, are preserved within acceptable limits. Moreover, the indirect tensile strength has increased by 88.6%. Furthermore, moisture susceptibility reached 88%. Therefore, the addition of 0.4% CFs improved the performance of HMA at a high temperature of 60°C, which is close to the paving temperature in Iraq, by reducing the rutting of the asphalt mixture, which is considered the most dangerous tiling problem in Iraq. By improving the performance characteristics of asphalt mixture, the durability of the pavement will increase, and the riding will be more comfortable.
Green polymer electrolyte and activated charcoal-based supercapacitor for energy harvesting application: Electrochemical characteristics
Authors: Aziz Shujahadeen B. , Hamsan Muhamad H. , Abdulwahid Rebar T. , Halim Norhana Abdul , Hassan Jamal , Abdulrahman Ahmed F. , Al-Saeedi Sameerah I. , Hadi Jihad M. , Kadir Mohd F. Z. , Hamad Samir M. , Saeed Salah R. 
Published: January 2024

Abstract
The aim of this study is to address the growing concern about microplastics in the ocean and their potential harm to human health through ingestion. The MPs issue is largely a result of the increasing demand for electronic devices and their components. To tackle this challenge, the research aimed to develop a green polymer electrolyte that used glycerol as a plasticizing agent to improve ionic conductivity. The polymer host included chitosan and polyvinyl alcohol and was composed of sodium acetate. To evaluate the performance of the polymer electrolyte, various analytical techniques were used, including impedance and electrochemical studies. The ionic conductivity of 7.56 × 10−5 S·cm−1 was recorded. The dielectric property study confirmed the ionic conduction process in the system and revealed the existence of non-Debye type relaxation, as indicated by asymmetric peaks of tanδ spectra. The alternating conductivity exhibits three distinguished regions. The polymer electrolyte was discovered to be electrochemically stable up to 2.33 V and capable of storing energy as a non-Faradaic electrochemical double-layer capacitor (EDLC). The cyclic voltammetry pattern is a leaf like shape. The EDLC was able to be charged and discharged up to 1 V, and it showed cyclability and could be used in low-voltage applications.
Effect of sinusoidal pulsating speed enhancement on the mixing performance of plastics machinery
Authors: Liu Tianlei , Dong Tianwen , Liu Bangxiong 
Published: January 2024

Abstract
Numerous vibration-assisted methods have been adopted to solve problems in polymer processing, but the introduction of vibration fields is typically done on small extruders or injectors in school laboratories and industrial research rooms, which profoundly limits the application of vibration technology. The purpose of this study is to put forward a simple vibration excitation method for all scale extruders or injection molding machines. To recover the mixing performance of that excitation method, a numerical investigation was carried out using the CFD software ANSYS POLYFLOW 19.2, and the analysis and comparison were made between the mixing performance of a simplified screw element with and without a sinusoidal pulsating speed field. The results showed that not all dynamic states with the superimposed excitation field have better mixing performance than the steady state without any pulsating field. Nevertheless, the introduction of a pulsating speed field under certain parameters setting can indeed enhance the stretching rate, reduce the separation scale, increase the mixing efficiency, and lower the screw force. These findings are of great importance and provide valuable references for the development and application of vibration-assisted molding technology in plastics machinery.
The crystal structure of 2-(2-((4,6-dimethoxypyrimidin-2-yl)oxy)phenyl)-4-(piperidin-1-yl)-5H-chromeno[2,3-d]pyrimidine, C28H27N5O4
Authors: Xie Dongtai , Lei Sufang , Li Yuanxiang 
Published: January 2024

Abstract
C28H27N5O4, monoclinic, P21/c (no. 14), a = 11.3563(15) Å, b = 17.547(2) Å, c = 12.8390(16) Å, β = 101.385(3)°, V = 2508.1(6) Å3, Z = 4, R

gt
(F) = 0.0538, wR

ref
(F
2) = 0.1329, T = 292(2) K.
A planar graph as a topological model of a traditional fairy tale
Authors: Nazarov Nazarii 
Published: January 2024

Abstract
The primary objective of this study was to propose a functional discrete mathematical model for analyzing folklore fairy tales. Within this model, characters are denoted as vertices, and explicit instances of communication – both verbal and non-verbal – within the text are depicted as edges. Upon examining a corpus of Eastern Slavic fairy tales in comparison to Chukchi fairy tales, unforeseen outcomes emerged. Notably, the constructed models seem to evade establishing certain connections between characters. Consequently, instances where the interactions among fairy tale characters would result in a non-planar graph structure are notably absent. To put it differently, the models refrain from incorporating sub-graphs delineated by the Kuratowski theorem governing planar graphs, specifically the minimal non-planar graphs Κ5 and Κ3,3. Remarkably, even in more extensive texts featuring a larger cast of characters, connections that would yield a non-planar graph pattern are consistently avoided. This leads to the formulation of a hypothesis positing that traditional folk tales adhere to a “planar narrative” design – an identifiable narrative variant characterized by inherent limitations in complexity. This design, in turn, appears deeply entrenched within the societal framework of the cultures that produced these folk narratives.
Kinetics and thermodynamics of unimolecular dissociation of n-C3H7I
Authors: Bystrov Nikita , Emelianov Alexander , Eremin Alexander , Yatsenko Pavel 
Published: January 2024

Abstract
The present work expands previous studies on the kinetics of the n-C3H7I unimolecular decomposition and the thermodynamic properties of n-C3H7I and i-C3H7I molecules, by providing combined experimental and theoretical data on the rate constant for reaction of n-C3H7I + Ar ⇌ n-C3H7 + I + Ar, as well as thermodynamic data for iodopropane isomers, calculated based on the density functional theory. The n-C3H7I dissociation rate constant has been precisely determined in shock-tube experiments by applying atomic resonance absorption spectrometry (ARAS) at the resonance transition wavelength of atomic iodine (183.0 nm) in a temperature range from 830 to 1230 K at a pressure of 3–4 bar. The resulting expression is presented in the Arrhenius form: k
1st = 1.17 × 1013exp(−191.4 kJ mol−1/RT) (s−1). Theoretical RRKM/ME calculation of the temperature- and pressure-dependent rate constant and channel branching ratio have been based on quantum chemical calculations and were performed over a wide range of thermodynamic conditions (T = 300–2000 K, p = 10−4 to 102 bar). Additionally, the thermochemistry of the reactions of n-C3H7I dissociation and isomerization has been calculated on B3LYP/cc-pVTZ-PP level of theory. Thermodynamic data, which are provided in NASA polynomial format, are in a better agreement with the available experimental data and previous theoretical estimates.
The Sacred Lake Project: preliminary findings from the Lusatian site of Papowo Biskupie, Poland
Authors: Gackowski Jacek , Kowalski Łukasz , Lorkiewicz Wiesław , Noryśkiewicz Agnieszka M. , Jankowski Michał , Kamiński Dariusz , Molewski Paweł , Purowski Tomasz , Wagner Barbara , Garbacz-Klempka Aldona , Osipowicz Grzegorz , Przymorska-Sztuczka Magdalena , Kowalski Andrzej P. , Sosnowski Mateusz , Podgórski Andrzej , Szczepańska Grażyna 
Published: January 2024

AbstractIn 2023, prospection of a dried-out lake near Papowo Biskupie in north-central Poland identified substantial deposits of bronze artefacts. Excavation revealed further deposits and dozens of human skeletons that date from 1000–400 BC, suggesting that the site held particular significance as a place for sacrificial offerings in the Lusatian culture.
The influence of powdery mildew (Sawadaea bicornis (Wallr.) Miyabe) on chlorophyll fluorescence in Norway maple (Acer platanoides L.) seedlings
Authors: Alexeyeva A. A. , Holoborodko K. K. , Holodok L. P. 
Published: January 2024

The article presents the results of research on impact of Sawadaea bicornis (Wallr.) Miyabe on the state of photosynthetic apparatus in Acer platanoides L. seedlings using a technique of chlorophyll fluorescence induction (ChlF) measurement, which at the present time can be implemented through the use of biosensors. The research was conducted in September 2022 in the territory of the Botanical Garden of Oles Honchar Dnipro National University. To diagnose a violation of the native chlorophyll photosynthesis in fresh leaves of A. platanoides, a portable fluorometer “Floratest” was used (selected spectral range for fluorescence intensity measurement was 670–800 nm). The research was carried out on fresh leaves of Norway maple seedlings both not unaffected and affected with powdery mildew. Analysis of the data obtained indicates a high sensitivity of the parameters of chlorophyll fluorescence induction to damage by the disease regardless of environmental conditions of local growth of A. platanoides seedlings. The high informativeness of induction changes in chlorophyll fluorescence in the structural organization of chloroplasts in Norway maple leaves determined by the parameters Fo, Fm, Fv, Fv/Fо, Fv/Fm, (Fm–Fst)/Fst, (Fp–Fо)/Fv was revealed. This study demonstrated the effectiveness of using the studied chlorophyll fluorescence parameters to detect severe stress in Norway maple seedlings caused by powdery mildew exposure when the fungus affects more than 50% of the leaf blade area. It is further necessary to conduct dynamic studies throughout the growing season to determine the effectiveness of using these parameters to detect mild stress in the early stages of infection. Therefore, our research showed that the method of induction of chlorophyll fluorescence using the “Floratest” device allows you to quickly determine the general condition of the plant by evaluating photosynthesis, which is the main life process. Analysis of chlorophyll fluorescence parameters is a powerful and effective tool for determining the effect of a parasitic fungus on a plant.
Measuring the third mission of European Universities: A systematic literature review
Authors: Haj Taieb Sirine 
Published: January 2024

AbstractIn recent years, policymakers and academics have shown interest in understanding how universities could drive regional innovation. Universities are not solely focusing on research and education as their primary missions but are also asked to participate in the development of their regions. This has compelled universities to forge what is called a third mission, encompassing all social and economic activities of universities. Several attempts have been made to evaluate this concept, aiming to highlight the evolving role of universities and their relevance to policy and society. In this vein, this paper showcases existing attempts that aim to measure the impact of the third mission in European universities. This study consists of a systematic literature review studying journal articles published between 2001 and 2021. The purpose of this paper is to enumerate the existing measurements of the third mission and identify the different tensions related to it. This study shows that the literature encompasses three approaches for assessing the third mission. First, some studies incorporated the third mission into the overall evaluation of university performance. Second, other investigations aimed to capture this concept as a whole. Finally, several studies evaluated individual dimensions of the third mission independently.
Perfil de atendimentos realizados em um serviço escola
Authors: Longo Ana Cláudia , Fontana Maíra , Sathes Michele Minozzo , Méa Cristina Pilla Della , Ferreira Vinícius Renato Thomé , Cenci Cláudia Mara Bosetto 
Published: January 2024

A prática clínica durante a formação em psicologia é realizada muitas vezes em clínicas-escola, e conhecer características da clientela atendida é fundamental para o aprimoramento do atendimento. Objetivou-se levantar o perfil de pacientes atendidos numa clínica-escola, nas modalidades infantil, adolescente, adulto, casal e família de uma clínica-escola de psicologia localizada no Rio Grande do Sul. Realizou-se um levantamento de perfil de 667 prontuários de pacientes infantis, adolescentes, adultos e de casal e família atendidos, entre os anos de 2011 a 2017, investigando dados sociodemográficos, tipo de avaliação inicial conduzida, número de sessões, teoria utilizada, quem encaminhou, motivo da busca, hipótese diagnóstica e razão do término do atendimento. Identificou-se características específicas destas variáveis conforme a faixa de idade e tipo de atendimento. Houve um expressivo número de prontuários com dados incompletos, dificultando a análise dos dados. Um melhor controle das informações dos prontuários permite um conhecimento mais detalhado do perfil atendido em clínicas-escola.
Indução de estereótipo e desaprovação na memória de crianças pré-escolares e escolares
Authors: Pante Marina , Stein Lilian Milnitsky , Dillenburg Mariana Sanseverino 
Published: January 2024

O presente estudo investigou o impacto da indução de estereótipo e a influência da desaprovação na memória de crianças. Participaram 40 pré-escolares (23 meninas, entre 4 e 6 anos (M= 62,7 meses, DP=8,03) e 36 escolares (17 meninas), entre 7 e 8 anos (M=95,4 meses, DP= 6,21) que receberam a visita de um “cientista” que realizou uma demonstração de ciências. As transmissões do estereótipo e desaprovação foram realizadas através de vídeos. Entrevistas foram realizadas para avaliar a memória das crianças acerca do evento. Os principais resultados indicam que crianças escolares recordaram mais informações acuradas que crianças pré-escolares. Ademais, existe uma relação positiva entre recordação de memórias acuradas e produção de memórias relativas ao estereótipo, que é moderada pela idade dos participantes. A principal contribuição é a investigação empírica do impacto que a faixa etária exerce na acurácia dos relatos de memória, e na relação entre memória acurada e falsas memórias.