bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reescrituras de la proximidad
Authors: DI CAMPLI ANTONIO 
Published: October 2022

La pandemia es una experiencia significativa, que impone una discontinuidad conceptual en nuestras formas de pensar, sobre todo en torno al sentido de urbanidad tal y como se ha definido en tanto en America Latina como en Occidente en los dos últimos siglos. Es necesario inventar nuevas relaciones, economías y formas de vida, especialmente en la escala de la proximidad. El discurso en torno al proyecto de la mixité socioespacial podría perder fuerza y ​​probablemente habrá una tendencia a redefinir nuestros sistemas de espacios públicos como infraestructuras de seguridad. El término infraestructura indica todo lo que permite la acumulación y redistribución de la riqueza, incluidos tanto los sistemas físicos como los dispositivos para sustentar las relaciones sociales. La infraestructura, en su declive marxista, es un sistema socio-técnico denso y un dispositivo de figuración socio-espacial. A través de ella se expresan relaciones de poder, se identifican condiciones de privilegio y vulnerabilidad.
Palabras clave: diseño del paisaje, diseño urbano, desprendimiento, ecologia
Descolonizando la música: la creación de la primera Licenciatura en Música Autóctona, Clásica y Popular de América
Authors: IGLESIAS ROSSI ALEJANDRO 
Published: October 2022

Las creaciones musicales autóctonas, clásicas y populares en América han generado a través de los siglos un corpus geocultural per se. Sin embargo, esa extraordinaria riqueza no se ha visto reflejada en una teoría y praxis alternativa a aquella heredada de los estudios académicos de la tradición musical europea.
En el mundo actual, en el que la genuina creatividad cultural se encuentra amenazada de desintegración por la globalización, la creación, interpretación, investigación y enseñanza musical en nuestro continente se hallan en una encrucijada: la de desarrollar, a través de una verdadera epistemología de descolonización, un entramado simbólico endógeno que la ubique en su propia singularidad.
En este contexto, el presente artículo desarrollará el marco conceptual artístico-académico que permitió la creación de la Licenciatura en Música Autóctona, Clásica y Popular de América en la Universidad Nacional de Tres de Febrero.
Palabras clave: Descolonización cultural, Geocultura, Creación Musical.
Procesos contemporáneos en la praxis de la técnica del fresco
Authors: ARMADA-GALÁN SONIA MARÍA 
Published: October 2022

La técnica del fresco ha buscado aclarar, narrar y comprender determinadas ideologías e instituciones de las diversas sociedades humanas, independientemente de su condición iconoclasta e iconódula. Ha sido archivo comunicador del contexto vivido, formando parte decorativa de nuestro espacio arquitectónico, narradora de sensaciones y hechos sociales (Armada, 2020).
Actualmente la técnica se encuentra en una clara despoblación ante causas como la desaparición del muro o el oculocentrismo. Como respuesta, nuevas cuestiones y formas de configurar la técnica están procesándose en el paradigma artístico actual, basándose en el cómo hacer y sus denotaciones dentro del proceso productivo. Para configurar el discurso, han sido utilizados textos clave de pintores como Cennino Cennini (2009), Joyce Kozloff, Young-Sun Jin (2004) o Josep Minguell (2014) y Sonia Armada (2020).
Palabras clave: Arte contemporáneo, affresco, arte procesual, materia, arquitectura contemporánea.
Czy gospodarka cyfrowa pomoże zmniejszyć presję na środowisko naturalne?
Authors: Wysokińska Zofia 
Published: October 2022

Celem rozdziału jest przedstawienie transformacji cyfrowej jako procesu zachodzącego w gospodarce światowej i w Unii Europejskiej w ostatnich latach oraz jej wpływu na zmiany w sferze gospodarczej, społecznej jak również budowy pozytywnych relacji między cyfryzacją a ochroną środowiska, w drodze do gospodarki cyrkularnej. Omówiono również rolę technologii informacyjno-komunikacyjnych, które stanowią kluczową podstawę rozwoju gospodarki cyfrowej. Głównymi tematami poruszanymi w tym rozdziale jest rola platform cyfrowych (Digital Innovation Hubs) i ich pozytywny wpływ na integrację uczelni, instytutów badawczych i sfery biznesu na rzecz kreowania nowych pomysłów oraz dla kształtowania nowych instrumentów w celu wdrażania koncepcji zrównoważonego rozwoju, w tym kształtowania nowych umiejętności i kompetencji cyfrowych w ramach jednolitego rynku cyfrowego w Unii Europejskiej, a zwłaszcza gospodarki opartej na Big Data i na otwartym dostępie do wyników badań naukowych.
The impact of school on career choice among secondary school students
Authors: Mtemeri Jeofrey 
Published: October 2022

Many factors affect how people make career choices. The study sought to investigate school influence on career pathways among secondary school students in the Midlands Province of Zimbabwe. The investigation serves as a springboard to establishing a career guidance model that would assist career guidance teachers in high schools in their endeavours to help students make career choices from a well-informed perspective. A self-designed questionnaire was used in collecting data from the participants. One thousand and ten high school students and 20 career guidance teachers participated in the study. Statistical Package for Social Sciences version 19 was used to calculate the percentages that were used to analyse the data. The study revealed that schools had an impact on secondary school students’ choice of careers. The geographical location of schools was cited as quite influential in the choices of careers by students and career guidance teachers are allowed to teach career guidance.
Keywords: Career, career choice, guidance, secondary school
Assessment of the role of demographic variables in students' performance in economics
Authors: Bichi Ado Abdu , Bako Hindatu A. 
Published: October 2022

Economics as a subject is regarded as the bedrock of all management and social science-based disciplines. The persistently low level of students’ achievement in economics in senior secondary school examinations has become a thing of great concern to all stakeholders. This study examined students’ performance in the Senior Secondary School economics qualifying examination in Kano State and the influence of sex and schools' nature on their performances in economics. An ex-post facto design of descriptive research was adopted for the study. A proforma was used to collect data from a sample of 300 students, selected using a stratified random sampling procedure from the secondary schools in Kano State, Nigeria. The data were analysed using descriptive statistics and an independent-sample t-test to test the hypotheses. Overall results showed that students performed above average and a significant gender difference exists in economics performance. Similarly, there is no significant difference in students’ performance with respect to the schools' nature (boarding and day schools).
Keywords: Economics, examination, students’ performance, school nature
Using Various Analysis Center Products to Assess the Time-Frequency Transfer Performance of GPS/Galileo/BDS PPPAR Methods
Authors: OuYang Mingjun , Zhu Xiangwei , Yi Ruite , Lyu Daqian 
Published: October 2022

These days, numerous organizations and Analysis Centers (AC) offer various Ambiguity Resolution (AR) products using various methodologies. To use it for time-frequency transfer, there is no associated study. This paper chooses 16 MGEX stations with external high-precision atomic clocks to constitute 15 international time comparison links and uses AR products data from CNES, SGG, CODE, and PRIDE laboratory, using three ambiguity-fixed strategies, to thoroughly evaluate the effects of various strategies and AR products for high-precision time-frequency transfer. We reach the following results by using the IGS final clock product as a reference and comparing it to ambiguity-float. With various ambiguity-fixed procedures, the time stability STD of time transfer is increased for a single GPS, and the improvement ranges from 10% to 40%. The frequency stability has barely improved; up to 40%, the most notable improvement comes from FCB with GRM products. The time stability STD of combinations has improved after the addition of the Galileo system compared to the single GPS, and the improvement ranges from 2% to 9%. Most strategies have improved, while a few techniques have weakened with the GEC (GPS+Galileo+BDS) combination. We feel that the stability has not significantly increased with the system's increase within short-term stability after comparing multiple groups of linkages.
Electric Submersible Pump Setting Depth Optimization- A Field Case Study
Authors: Alqahtani Bader Abdullah , Alqahtani Mubarak Abdullah , Alqahtani Abdullah Mubarak 
Published: October 2022

AbstractWell completion design consideration, in artificially-lifted wells, are typically governed by the philosophy of operators and dictated by the conditions and type of well and reservoir being produced. Fluid properties is also an important parameter to be considered in the design of the system. Typically, electric submersible pumps, ESP's are set close to the producing zone for different considerations of flow efficiency and well completion. This paper presents a field case study of optimizing ESP setting depth. The study was conducted on field actual case and considered the pump performance at different setting depth for certain well completion menu and different operational aspects of well integrity, etc. The main objective was to check the lowest setting point without jeopardizing ESP performance or violating well integrity/control mandates, and avoiding the potential vibration associated with multiphase flow. This is to reduce cost of cable, improve operating conditions without jeopardizing pump flow efficiency.Flow simulation of multiphase flow through the ESP was conducted to examine the gas volume fraction and total dynamic head to evaluate performance at different setting depth. Flow simulations are presented for the case study. Results indicated that fluid properties, completion design, production practices dictate the setting depth. Sensitivity runs were made for cases to cover the life cycle of the pump, including the changes water percentage, formation pressure, and flow different values pf productivity indices and pumping wellhead pressures.Operation practice may not sometimes allow such setting to avoid exposure of fluid to the permanent casing. Simulation supported that the ESP depth , for the cases in study, could be set at much lower depth before it exhibit any degradation in performance and deviation from performance curve. Gas volume fraction was less than the limit of 15% by some manufacturer of ESP's for the pump to exhibit degradation in performance. The pump setting depth of the case was low enough, ±2000’, that would result in saving in pipe, cable, and may prolong the operation of the pump due to operating at lower temperature. Comprehensive approach to calculate performance of ESP at different depths and consider operational aspects, were conducted. Operational considerations included well performance, integrity, and reservoir monitoring, well control. Special calculation were made to check the gas volume fraction in pump stage that will impact performance. The approach was good to have an answer of the setting depth. Subsequently, cost saving in pipe, cable could be realized. Thermal effect on flow and performance could be considered to improve calculations.
Spatial distribution of heavy metals and Ecological Risk Assessment for the main sub-branches (Rayahs) sediments of Nile River, Egypt
Authors: Sayed Seliem M. El , Salem Salem G. , Abdo Mohamed H. , Ali Mohamed H.H. , Goher Mohamed E. 
Published: October 2022

Abstract
Sediments act as a sink or source of pollution under various conditions. Moreover, they can serve as pollution indicators. The present research aims to evaluate sediment quality associated with its content in heavy metals and the potential ecological risk, focusing on the sub-branches of Nile River (Rayahs) in Egypt, including El-Tawfiky (RT), El-Menoufy (RM), El-Behary (RB), and El-Nassery (RN). According to the results, El-Rayahs sediments are characterized by an increasing sand fraction, followed by mud. Regarding heavy metals pollution, Cd registered the highest pollution ranking, whereas Fe, Mn, Zn, Pb, and Ni exhibited the lowest effect. Furthermore, the ecological risk for El-Rayahs sediments increases northward; however, most sites either showed slight pollution or did not record any degree of contamination, except the northern stretch of El-Behery (El-Mahmoudia Canal), which is a very high-polluted zone, with high ecological risk according to the contamination degree (Cd) and potential ecological risk (RI) indices.
Antimicrobial efficacy and cryogenic conservation of Solanum villosum grown under in vitro environment
Authors: Shibli Rida A. , Al-Qudah Tamara , Zatimeh Ahmad , Tahtamouni Reham , Mallouh Saida Abu 
Published: October 2022

Abstract
Solanum villosum is a wild distinguished medicinal herb that has few studies describing its medicinal properties with no sustainable production and conservation studies. In this study, in vitro cultures of microshoots and callus of Solanum villosum were multiplied in vitro on Murashige and Skoog media supplemented with different growth regulators. The MS media that have 2,4 Dichlorophenoxy acetic acid (2,4-D) and Kinetin at the levels of (2.0, 1.2 mg/L; respectively) were used for the induction and multiplication of callus that yielded the highest fresh weight of (6.03 ± 0.15) g. Cryopreservation was applied successfully to seeds using the dehydration technique and for both microshoots and callus using v-cryoplate technique. The highest regrowth rate was obtained in callus (95 ± 0.13) after pre-culturing callus on 0.3 M sucrose for 5 days. The most inhibited bacteria strains by microshoots extracts were, Klebsiella pneumoniae and Staphylococcus epidermidis (30 ± 0.25 and 25 ± 0.17 mm; respectively) using the disk diffusion assay. In MIC method; The extract obtained from microshoots achieved best results of MIC values (9.77 and 39.06 (µg/ml) against (Micrococcus luteus and Klebsiella pneumonia; respectively). A sustainable protocol of callus culture and cryopreservation protocol for in vitro Solanum villosum has been set for the first time which makes this research novel. Furthermore, promising results of antimicrobial activity for both in vitro and wild Solanum villosum were obtained.
Improved Vulnerable Plaque Detection System using Virtual Histology-Intravascular Ultrasound Image Based on an Empirical Study
Authors: Rezaei Zahra , Abaei Golnoush 
Published: October 2022

Abstract
A life-threatening atherosclerosis plaque has been termed as Thin Cap Fibroatheroma (TCFA). Atherosclerotic plaque located between two borders recognized by Virtual Histology-Intravascular Ultrasound (VH-IVUS) images. In order to improve the reliability of plaque classification and TCFA detection, two approaches are suggested which are firstly based on the feature extraction technique and secondly by employing a set of ensemble classification techniques using Support Vector Machine (SVM), Radial Basis Function (RBF), and Extreme Learning Machine (ELM) as base classifiers. Plaque Burden Assessment by Local Search (PBALS) is proposed for extracting the plaque features. The geometric features are extracted from the plaque region and combined with IVUS features. In the classification part, different types of ensemble methods have been proposed and employed to identify the non-TCFA plaques from TCFA plaques with the expected reliability and robustness. 599 in-vivo IVUS along with their matching VH-IVUS images which are gathered from 10 patients are used for the experiment. According to the results, the combination of VH-IVUS with IVUS features performed better than standalone VH-IVUS features in terms of accuracy (22), sensitivity (17), and specificity (21) out of 23 different proposed methods. Furthermore, M2 model which only used 5 features (GFC3) with the combination of SVM, RFB, and ELM for the ensemble classifier performed well using either both VH-IVUS with IVUS features or single alone VH-IVUS features. Finally, prediction models which were built using HDCT-DWT features did not perform as well as the proposed set of features and ensemble prediction model.
Meat Quality, Some Blood Profiles and Cecum Microbial Load in Broiler Fed With Effective Microorganisms, Turmeric (Curcuma longa) and Their Combination as Feed Additives
Authors: Kinati Chala , Ameha Negasi , Girma Meseret , Nurfeta Ajebu 
Published: October 2022

Abstract
A study was conducted to evaluate effect of feeding effective microorganisms (EM), turmeric (TP) and their combination (EM-TP) as natural feed additives on meat quality, some blood profiles and cecum bacterial load of broilers. A total of 192 chicks were assigned into one of four treatments control (CTL), 1ml/lit EM, 1% TP, 0.5 ml/lit EM and 0.5% TP (EM-TP) in a completely randomized design. Feed additives had higher (P < 0.05) b*(yellowness) value in breast and thigh meat color for TP and EM-TP than the other treatments. Shear force value is higher (P < 0.05) in CTL than the other in both breast and thigh muscles. The highest (P < 0.05) fat content was for CTL. The moisture, CP and ash of breast and thigh meat were similar (P > 0.05) except crude fat percentage which was higher (P < 0.05) for CTL group. High result (P < 0.05) in alkaline phosphatase (ALP) for EM and EM-TP while Cholesterol content, Low-Density Lipoprotein (LDL), and Triglycerides concentrations were decreased significantly (P < 0.05) by consumption of EM, T, P, and EM-TP than the control group. There were high (P ≤ 0.05) population of total coliform count and E. coli bacteria were counted in CTL than the other treatment group. In conclusion, experimental additives can lower the crude fat in meat composition, blood cholesterol level, blood LDL cholesterol, triglyceride concentration and markedly reduced total coliform count and E. coli bacteria in the intestinal contents of broilers thereby improving gut efficiency and gut health of broiler chicken.
Design and implementation of an experimental device by the pendant drop method for measuring surface tension of pulmonary fluid
Authors: Chen Zhenglong , LV Dan , Zhang Chunyuan , Liu Yuanyang , Sha Jingxin , Deng Linhong , Zhong Ming , Song Yuanlin 
Published: October 2022

Abstract
The quantitative measurement of pulmonary fluid surface tension in many lung diseases including respiratory distress syndrome (RDS), pneumonia, COVID-19 and acute respiratory distress syndrome (ARDS) has great physiological and clinical significance. The conventional techniques like film balances and bubble methods, however, are hard to use in the clinical practice due primarily to a limitation of small sample volume. In this work, we developed an experimental device based on the pendant drop method to clinically measure surface tension of pulmonary fluids in ARDS patients. We provided a detailed discussion of the theoretical background to the design of hardware and software as well as validation of measurement precision. The measured surface tensions of the two test liquids, pure water and dimethyl silicone oil, are 72.35±1.00 mN⁄m and 21.38±0.61 mN⁄m, respectively, in good agreement with the corresponding literature values of 72.02 mN⁄m and 21.10 mN⁄m at room temperature of 25℃.Using this experimental setup, we tentatively measured surface tensions of four pulmonary fluid samples from several mechanically ventilated ARDS patients. The results showed that the measured surface tension at 25±1℃ is within the range of 23.8～53.9 mN/m, comparable with reported values in the literature. Further, the calculation of the Worthington number showed that the data obtained are sufficiently accurate. We came to the conclusion that the pendant drop tensiometry is a powerful tool in the studies of pulmonary fluid surface properties due to a small sample size, high degree automation and freedom from contamination.
Soil properties shape the arbuscular mycorrhizal status of common bean (Phaseolus vulgaris) and soil mycorhizal potential in Kabare and Walungu territories, Eastern DRCongo
Authors: Ndeko Adrien Byamungu , Chuma Géant Basimine , Chokola Gloire Musafiri , Kulimushi Parent Zihalirwa , Mushagalusa Gustave Nachigera 
Published: October 2022

Abstract
Common bean (Phaseolus vulgaris) is the main leguminous crop grown in South-Kivu province. However, there is a scarcity of information concerning the soil mycorrhizal potential, natural mycorrhization and the spore density of arbuscular mycorrhizal (AM) fungi associated with P. vulgaris in South-Kivu province. In this study, rhizospheric soil and roots samples have been collected in Kabare and Walungu territories in famer’s field (three localities in each territory) to determine the bean natural mycorrhization rate, AM spore density and the soil mycorrhizal potential in relation with soil chemical properties. We founded that bean root colonization was high in Katana, Kavumu and Miti, and low in Lurhala, Walungu centre and Nduba. Katana and Kavumu showed a high number of spores (242.9 ± 37.8 and 183 ± 13.1 spores.100g− 1 soil, respectively) compared to other sites. Soil mycorrhizal potential was higher in Katana, Kavumu and Miti sites, located in Kabare territory (10.8 ± 0.7, 9 ± 1.3 and 8.8 ± 0.9 AM propagules g-1 soil). AM potential was positively and significantly correlated with bean mycorrhizal colonization (p < 0.0001). Increasing soil P content significantly decreased mycorrhization frequency and intensity (r=-0.69, p < 0.0001 and r=-0.54, p = 0.002, respectively) and the soil mycorrhizal potential (r= -0.87, p < 0.0001) regardless of the study site. While soil pH positively affected the mycorrhizal colonization (r = 0.73, p < 0.0001 and r = 0.54, p = 0.002, respectively) and the soil mycorrhizal potential (r = 0.78, p < 0.0001). This study revealed a strong variation in bean mycorrhizal status and soil mycorrhizal potential across sites. Site-specific AM fungi morphotype identification and inoculum production should be considered to improve bean productivity.