bluuebunny/crossref_metadata_2025_split huggingface dataset:
Selective hydrogenation of light cycle oil for BTX and gasoline production purposes
Authors: Olmos-Cerda Eli H. , Laredo Georgina C. , Pérez-Romo Patricia , Águeda-Rangel Ricardo , García-López Alfonso 
Published: March 2021

Abstract
The study of the best experimental conditions and catalyst for the hydrogenation (HYD) of light cycle oil (LCO) for upgrading purposes was carried out. The objective was to examine the ability of two commercial hydrotreatment (HDT) catalysts for selective aromatic saturation. The effect of the hydrotreatment operation parameters (temperature, pressure, liquid hourly space velocity, H2/HC ratio) on the sulfur and nitrogen contents and in the saturation of aromatic hydrocarbons was also investigated. The goal was to obtain the highest conversion to mono-aromatic hydrocarbons from this di-aromatic (naphthalene derivatives) type feedstock, and at the same time to get reasonable hydrodesulfurization (HDS) and hydrodenitrogenation (HDN) performance to avoid contaminant hydrocarbons for the next step (usually hydrocracking, HCK). An appropriate hydrotreated product with the highest concentration of mono-aromatic derivatives, a minimum reduction on the total aromatic content, and suitable decrements of sulfur and nitrogen compounds, was achieved using a cobalt-molybdenum supported on alumina catalyst, at 330 °C, 5.5 MPa, and a liquid hourly space velocity of 1.1 h−1. Additionally, the kinetics of the HDA was studied, assuming a lump characterization into tri-, di- and mono-aromatic and aliphatic hydrocarbons, pseudo-first-order reaction rates between these conversions, and thermal losses and diffusional resistances to be undetectable.
Prognostic significance of TRIM28 expression in patients with breast carcinoma
Authors: Zhang Wen , Cai Zhengquan , Kong Mingzhu , Wu Anqi , Hu Zeyang , Wang Feng , Wang Hua 
Published: March 2021

Abstract

Background
Tripartite motif 28 (TRIM28) plays a role in multiple biological functions. The expression and function of TRIM28 in breast carcinoma (BC) remain unclear. The aim of this study was to explore potential association of TRIM28 with tumor features and survival.

Materials and methods
Specimens were collected from BC and adjacent normal tissues. Quantitative reverse transcription PCR (RT-qPCR) and immunohistochemistry (IHC) were performed to detect TRIM28 expression. The correlation of TRIM28 with clinicopathological features was evaluated by Chi-square test. The relationship between TRIM28 expression and survival was further analyzed by the Kaplan-Meier and Cox regression method. A receiver operating characteristic (ROC) curve was used to assess the value of TRIM28 in predicting BC.

Results
In this retrospective research, it was demonstrated that TRIM28 was overexpressed in BC tissues. TRIM28 overexpression was correlated with lymph node metastasis, advanced TNM stage, and poor molecular subtype. The survival analysis showed that overall survival (OS) and progression-free survival (PFS) were significantly shorter in TRIM28-positive group. Moreover, TRIM28 was an independent prognostic factor for BC. And ROC analysis verified the diagnostic role of TRIM28 in BC.

Conclusions
TRIM28 is overexpressed in BC and might be a promising prognostic and diagnostic biomarker of BC.
Amazonian worlds of other-than-human beings and the Apurinã through the materiality of oral stories
Authors: Virtanen Pirjo Kristiina , Apurinã Francisco , Facundes Sidney 
Published: March 2021

AbstractThis article looks at what origin stories teach about the world and what kind of material presence they have in Southwestern Amazonia. We examine the ways the Apurinã relate to certain nonhuman entities through their origin story, and our theoretical approach is language materiality, as we are interested in material means of mediating traditional stories. Analogous to the ways that speakers of many other languages who distinguish the entities that they talk to or about, the Apurinã make use of linguistic resources to establish the ways they interact with different entities. Besides these resources, the material means of mediating stories is a crucial tool to narrate the worlds of humans and nonhumans. Storytelling requires material mediation, and a specific context of plant substances. It also involves community meeting as a space of trust in order to become a communicative practice and effectively introduce the history of the people. Our sources are ethnography, language documentation, and autoethnography.
The effect of microwave irradiation on heterogeneous catalysts for Fischer–Tropsch synthesis
Authors: Mbuya Christel Olivier Lenge , Jewell Linda L. , Ntelane Tau S. , Scurrell Mike S. 
Published: March 2021

Abstract
The work that has been carried out on microwave irradiation applied in catalyst preparation for drying, calcination or postsynthesis methods, and as a heating source for the Fischer–Tropsch reaction has been reviewed. It has been found that microwave irradiation can, in some cases, greatly enhance the performance of heterogeneous catalyst systems for Fischer–Tropsch synthesis. We have also summarized the advantages and drawbacks of using microwave irradiation in Fischer–Tropsch catalyst preparation and postsynthesis, and identified opportunities for future investigation.
Die Fabelhaften Fünf: Wie ausländische Akteure das Maduro-Regime in Venezuela stützen
Authors: Rendon Moises , Fernandez Claudia 
Published: March 2021

Zusammenfassung
Das Maduro-Regime wäre heute nicht mehr an der Macht, wenn es nicht von fünf Verbündeten gestützt würde: Russland, China, Kuba, Iran und Türkei. Russland und Venezuela haben eine langjährige finanzielle, politische und diplomatische Partnerschaft. China ist ein starker – wenn auch leiser – Unterstützer des Maduro-Regimes, aber es hat in den letzten Jahren seine wirtschaftlichen Projekte in Venezuela zurückgefahren. Iran und Venezuela pflegten seit der Regierungsübernahme von Chávez eine symbolische und von hochtrabender Rhetorik geprägte Partnerschaft. Im vergangenen Jahr haben sie als zwei auf der Weltbühne weitgehend isolierte Staaten einen gemeinsamen Nenner gefunden. Kuba ist existenziell abhängig von Venezuela, hat aber auch weiterhin enormen Einfluss auf die regimetreuen Nachrichtendienste, das venezolanische Militär und die ideologische Rhetorik des Regimes. Die Türkei ist ein relativ neuer Partner des Regimes und unterstützt den unerlaubten Goldhandel Venezuelas.
Vorgehen zur Entwicklung einer Predictive Maintenance-Lösung
Authors: Schuh Günther , Kelzenberg Christoph , Helbig Jens , Graberg Tim 
Published: March 2021

AbstractIn der Serienproduktion sind Ausfälle von Blechumform-, Spritzguss- oder Druckgusswerkzeugen aktuell unvorhersehbar, sodass Produktionsstillstände entstehen, die in hohem Maße Anlagenverfügbarkeit und Produktionskosten beeinflussen. Aufgrund dieses starken Einflusses gewinnt die vorausschauende Wartung – Predictive Maintenance genannt – zunehmend an Bedeutung. Ziel ist es, Störfälle an Produktionsanlagen noch vor ihrem Eintreten zu prognostizieren, um vorbeugend Instandhaltungsarbeiten durchführen und hohe Kosten vermeiden zu können bzw. Produktivitätssteigerungen zu realisieren. Für die erfolgreiche Implementierung einer Predictive Maintenance-Lösung in einen Produktionsprozess muss diese anwendungsfallspezifisch ausgestaltet werden. Hierfür liefert die Studie „Predictive Maintenance“ des Werkzeugmaschinenlabors WZL der RWTH Aachen einen Handlungsleitfaden zur unternehmerischen Umsetzung.
Ko-Produktion industrieller Dienstleistungen
Authors: Austerjost Maximilian , Kreyenborg Alexander , Kiklhorn David , Azkan Can , Graefenstein Julian , Hefft Daniel , Henke Michael 
Published: March 2021

Abstract
In der Ko-Produktion industrieller Dienstleistungen verbergen sich enorme Potenziale. Es fehlt jedoch an einer einheitlichen Sprache, die eine effiziente und sichere Vernetzung von unterschiedlichen Unternehmen auf Netzwerkebene ermöglicht. Der Beitrag präsentiert den Lösungsansatz der Sealed Services. Unter Wahrung der Datensicherheit, -souveränität und -integrität können hierdurch kooperative Dienste über das Internet, vor allem durch kleine und mittlere Unternehmen, eigenständig entwickelt und umgesetzt werden.*)
Reifegradbasierte Bewertung der Anforderungen einer erfolgreichen MES-Einführung
Authors: Namneck Antonia , Böning Christian , Stonis Malte 
Published: March 2021

AbstractDer Einsatz eines Manufacturing Execution Systems (MES) kann viele Vorteile für Unternehmen bieten, doch stellt die Einführung häufig eine große Herausforderung dar. Determinierend für eine erfolgreiche Einführung sind die Bestimmung notwendiger Anforderungen, deren Erfüllung durch das Unternehmen sowie deren Berücksichtigung im Einführungsprozess. In diesem Beitrag wird die Entwicklung einer reifegradbasierten Methode für die Bewertung und Verbesserung der unternehmensindividuellen Erfüllung der Anforderungen einer MES-Einführung vorgestellt.*)
ZrC-Impregnated Titanium-Based Coating as an Effective Lubricating Barrier for Artificial Hip Prosthesis
Authors: Malkiya Rasalin Prince R. , Selvakumar N. , Arulkirubakaran D. , Christopher Ezhil Singh S. , Chrispin Das M. , Bannaravuri Praveen Kumar , Mercy Russelin Prabha R. , Aldrin Raj J. , Jeen Robert R. B. 
Published: March 2021

Abstract
The important properties of implant materials are extended component life, wear resistance, and biocompatibility. The wear characteristics depend, for implant materials, on the nature of the implant, movement of joints, and usage of the part. Hard ceramic Ti-6Al-4V-2ZrC (Titanium (Ti), Aluminium (Al), Vanadium (V), Zirconium Carbide (ZrC)) was coated over stainless steel (SS) 316L for analyzing the wear and mechanical properties against E-52100 steel balls sliding for artiﬁcial hip joints. The coating crystallography was examined by X-ray diffraction analysis and the topography was inspected by an Atomic Force Microscope (AFM). The coating thickness has been measured as 5–6 µm using a scanning electron microscope (SEM), and the smooth surface roughness of 0.03 µm was measured using AFM. The Ti-6Al-4V-2ZrC coated surface nanohardness has been enhanced three times higher than uncoated. The ball-on-disk wear was investigated with a load of 2–3 N, sliding distance 110 m, and sliding velocity 0.25–0.95 m/s. The investigated wear rates are mostly higher than 10−5 mm3/Nm, and the frictional coefﬁcient reduces from 0.8 to 0.35. The morphology of worn surfaces was analyzed using SEM. Based on the improvement in nanohardness, it is concluded that the Ti-6Al-4V-2ZrC coated SS 316L is a good replacement for an artiﬁcial hip joint because of its better wear resistance and coefﬁcient of friction.
Evaluation of Fire Resistance for a Recycled 0.15 mass% Carbon Steel
Authors: Nagai Kotobu , Terayama Satoru 
Published: March 2021

Abstract
A recycled steel with 0.2 % offset stress higher than 295 MPa was verified as a candidate for fire-resistant use, based on an academic standard in Japan. The chemical compositions were 0.15 mass% carbon-0.02 mass% silicon-0.5% mass% manganese and unavoidable alloy elements. The amount of elements inevitably contained in recycling was kept within the regulation, and then the dispersion of tensile properties among hot coils was controlled to be sufficiently small. The recycled steel satisfied the requirements by the academic standard in terms of tensile properties at elevated temperatures. No significant evolution was observed in the ferrite-based microstructure within the temperature and time range tested. The plastic deformation is apparently a strain-controlled one up to 400°C and a strain rate-controlled one at 600°C and 700°C. At 500°C, it is in the middle of the two. In the adopted test method, a constant strain rate was realized over the entire strain range except for the beginning stage of deformation. A peak strain rate occurs at about 0.2 % strain, which brings about the uncertainty in determination of 0.2 % offset stress at elevated temperatures. However, the constant strain rate requirement is satisfied in the determination of 1 % offset stress that the academic standard specifies.
Influence of the Cement Dust on Ants Grouping (Hymenoptera, Formicidae)
Authors: Mykytyn Tetiana , Dolynko Nelia , Stefurak Vasyl , Bielova Natalia , Kuzenko Vasyl 
Published: March 2021

Research of the influence of cement dust in zone of PJSC “Ivano-Frankivskcement” on the ants grouping was conducted. In this exploration was noticed that at the anthropogenic load disappears ants of the genus Formica, which are replaced by species of the genus Lasius and Myrmica.
Analyzing the distribution of ants genera and species on experimental meadows, we found a direct correlation between the ants number and distance from the sources of cement dust (r=0.87 at p<0.05). The largest number of the ant species observed in the area of influence from the genus Lasius. Myrmica nests are found not closer than 1 km from PJSC “Ivano-Frankivskcement”, Formica nests are only in the control. Under the action of cement dust on biotopes, the ants display a non-adaptive reaction. The analysis of changes in the population density of the particular genera showed that the nests density of all genera is minimal on the meadows located near the sources of cement dust. With remoteness from the source of pollution, the density of colonies reliably increases (r=0,97 at p<0,05). Colonies of the genus Formica (F. fusca) registered only in control reached the density of grouping 1,5±1,1 nests at 100m the accounting route. For the forest biotopes, the nests density of the genus Lasius is higher in control by 1.8 times (3.1 nests/25 m2) than in the village (1.75 nests/25 m2). For other genera (Camponotus, Myrmica and Formica), an opposite reaction was registered. The nests density of F. fusca, which are registered only in the control, reached 2.5 ± 1.1 nests for 100 m the accounting route.
With a decrease in the pollution degree, the proportion of underground nests increases (r=0,90 at p<0,05), the proportion of the dome nests decreases (r=-0,94 at p<0,05). At the same time, the size of dome on average decreases when removed from the source pollution. All nests registered in the most polluted zone consist of a mixture of cement dust and earths up to 45 cm high. About 75 % of all nests found were heavily overgrown. When excavating the nests the dome was as if cemented.
Adaptation of the ants to the influence of cement dust differs from other influence types and is expressed in the fact that in technogenic territories nests are more often dome-shaped, smaller diameter and considerably higher nests than those located in the control zone. This is because the soil near PJSC “Ivano-Frankivskcement” is covered with a layer of the lime dust which reaches 5 cm.
Lasius niger is resistant to various forms of the anthropogenic influence, which can be explained by the adaptive features of the forms ant nest.
Anatomical Structure of Polygonatum Mill. Species in the Precarpathian Region
Authors: Riznychuk Nadia , Gniezdilova Victoria 
Published: March 2021

Polygonatum Mill. species are found in woods of the temperate zone of the Northern Hemisphere. There are four species growing in Ukraine, the most common of which is Polygonatum multiflorum (L.) All. In forest and shrub habitats are also widespread Polygonatum odoratum (Mill.) Druce., Polygonatum latifolium Desf. and Polygonatum verticillаtum (L.) All. Polygonatum species have rhizomes of the sympodial type. They are of a primary anatomical structure. In the primary growth of the stem, as well as rhizomes, there is the central cylinder (stele) and the cortex. The structure of the leaf blade is related to the performance of basic functions: photosynthesis, respiration and transpiration. The leaves are isolateral with a lighter adaxial and shaded abaxial sides. The leaf is covered with epidermis. Beneath the epidermis is chlorenchyma, which makes up the leaf pulp - mesophyll.
The microscopic structure of Polygonatum multiflorum (L.) All. was studied. The anatomic description includes the characteristic of rhizomes, leaves and stems structure.
Power and performance analysis of light bicycle on different road profiles
Authors: Kalkat Menderes 
Published: March 2021

AbstractNowadays, digital technology and measurement are improving to measure some systems in accurate conditions without errors. From these improvements and developments, it is necessary to analyse performances and condition of bicycle and biker before high level computations. In this experimental investigation, a high quality and very light bicycle and a well-equipped trained biker were trained to test the system with different road and region conditions. The purpose of this investigation is to predict unwanted conditions of bicycle before computations and activity. Otherwise, this kind of experimental trained testing will give some information from unwanted bicycle accidents. Moreover, in this experimental work, a power meter and measurement instrument with sensors are used to measure real time parameters. As can be concluded from experimental results and the analysis, the proposed work has a good design and analysis for good material bicycles. The displacement analysis is also outlined with load of a 63 kg biker.
Characteristics of the Special Physical Fitness of Paddlers at a Distance of 200 m
Authors: Diachenko Andrii , Rusanova Olga , Guo Pengcheng , Kong Xianglin , Huang Zijian , Guo Jia 
Published: March 2021

The aim of the study. The overall goal of this manuscript was to gain a better understanding of differences in the level of functional support for special endurance for paddlers of uniform groups (in terms of sports qualification): men kayakers, men canoeists, and women kayakers who specialize in a distance of 200 m.
Material and methods. 20 qualified paddlers’ level of functionality is being assessed, among them are a group of elite athletes, the members of the Chinese national team and winners of the 2018 Asian Games.
Results. The important feature of the analysis is the evaluation of the structure of the ergonomic power of a 30-second maximum load. Estimating the average value of the ergometric power of work for 25-30 seconds of operation in accordance with the average power of the entire 30-second load made it possible to determine the ratio of the anaerobic alactic and lactic abilities of the athletes, taking into account the requirements of a 200-meter race for canoe and kayak paddlers.
A significant range of individual differences in the indices of reactive properties of the cardiorespiratory system, which are determined by the ratio of the partial pressure of СО2 and the maximum level of pulmonary ventilation (VE/PaCO2) during the10 and 30 second test task, attracts attention.
The range of VE/PaCO2 indicators was: the relation of partial pressure СО2 to pulmonary ventilation in the 10 s test – 2.3 ± 0.8 for men kayakers; 2.3 ± 0.7 for men canoeists; 2.2 ± 0.5 for women kayakers; the relation of partial pressure СО2 to pulmonary ventilation in the 30 s test – 3.9 ± 1.0 for men kayakers; 3.8 ± 1.1 for men canoeists; 3.6 ± 0.7 for women kayakers.
Conclusion. The results of the study indicate differences in the level of functional support for special endurance for paddlers of uniform groups (in terms of sports qualification): kayakers and canoeists who specialize in a distance of 200 m.
Validation of the Software-Hardware Complex “Rytm” for Measurement of the RR Intervals and Heart Rate Variability Analysis During Exercise and Recovery Period
Authors: Vovkanych Lyubomyr , Boretsky Yuriy , Sokolovsky Viktor , Berhtraum Dzvenyslava , Kras Stanislav 
Published: March 2021

The study purpose was estimation of the accuracy of RR time series measurements by SHC “Rytm” and validity of derived heart rate variability (HRV) indexes under physical loads and recovery period.
Materials and methods. The participants were 20 healthy male adults aged 19.7 ± 0.23 years. Data was recorded simultaneously with CardioLab CE12, Polar RS800, and SHC “Rytm”. Test protocol included a 2 minute step test (20 steps per minute, platform height – 40 cm) with the next 3 minute recovery period. HRV indexes were calculated by Kubios HRV 2.1.
Results. The RR data bias in the case of physical loads was -0.06 ms, it increased to 0.09-0.33 ms during the recovery period. The limits of agreement for RR data ranged from 3.7 ms to 22.8 ms, depending on the period of measurements and pair of compared devices. It is acceptable for the heart rate and HRV estimation. The intraclass correlation coefficients (0.62–1.00) and Spearman correlation coefficient (0.99) were high enough to suggest very high repeatability of the data. We found no significant difference (p > 0.05) and good correlation (r = 0.94-1.00) between the majority of HRV indexes, calculated from data of Polar RS800 and SHC “Rytm” in conditions of physical loads (except for LF/HF ratio) and in the recovery period. The only one index (RMSSD) was different (p < 0.05) in case of Polar RS800 and SHC “Rytm” data, obtained in the recovery period. The largest numbers of different HRV indexes have been found during the comparison of CardioLab CE12 and Polar RS800 – RMSSD, pNN50, and SD1. Correlation between HRV indexes (r = 0.81-1.00) was very high in all pairs of devices in all periods of measurements.
Conclusions. The SHC “Rytm” appears to be acceptable for RR intervals registration and the HRV analysis during physical loads and recovery period.
Relationship of diet and exercise compliance with blood sugar stability in diabetes mellitus type 2
Authors: . Rikayoni , Rahman Nurhamidah 
Published: March 2021

Background: Diabetes mellitus (DM) is a health problem that has become a threat. Prevalence DM based on the symptoms increases with age. The prevalence of women tends to be higher than that of men. The purpose of this study was to look at the relationship between diet and exercise compliance with blood sugar stability.Methods: This type of research is a cross sectional study carried out in the Kuranji public health center in Padang city from March to April 2020 with the sample in this study all patients with type 2 diabetes mellitus who went to Kuranji health center and did not come again in the last 3 months totaling 30 people. with the sampling technique purposive sampling. Statistical test using chi-square.Results: The results of this study show that as many as (50%) of respondents obey the diet and (15%) of the respondents do not obey the diet. With the obtained value of p=0.021. while as many as (60%) of respondents obeyed sports and (40%) did not obey sports, with a value of p=0.018. Conclusions: There is a relationship between diet and exercise adherence to blood sugar stability in type 2 DM patients.
Assessment of knowledge regarding diet among hospitalized patients undergoing treatment for chronic ailments in a tertiary care hospital from Hyderabad
Authors: Gaiki Varun Vijay , Sonkar Venkartamana K. , Butta Ramesh 
Published: March 2021

Background: Nutrition plays important tole in the health, and specially in chronic diseases. It plays important role in all levels if prevention. Thus awareness of patients, suffering from chronic diseases is important in view of secondary and tertiary levels of prevention.Methods: The present cross sections study was carried out with 20 question predesigned and tested questionnaire, in patients admitted to hospital for chronic diases with stay more than 15 days. Scores were calculated from the questionnaire administered and results compared.Results: it was observed that awareness of patients about diet in chronic conditions was not adequate. Average scores on the 40-point questionnaire scale was 13.34, with SD±2.23. It was observed that awareness increased as education, socio economic status increases.Conclusions: It is recommended to have special nutritional counselling sessions for patients.