bluuebunny/crossref_metadata_2025_split huggingface dataset:
COMPETENCIES OF PHYSICAL EDUCATION TEACHERS IN CONDUCTING ONLINE EDUCATION
Authors: Ivanova Veselina , Mileva Eleonora 
Published: November 2021

The state of emergency, as a result of the COVID-19 pandemic, has completely changed the education system in Bulgaria, including the training of physical education and sports in Bulgarian schools. Physical education and sports training have been transformed into distance and online education and training. The aim of the research was to study the competencies of PE teachers in the country for the implementation of online teaching. The subject of the study was a total of 138 teachers, of whom 100 (72.5%) were female and 38 (27.5%) were male. The teachers were aged from 24 to 68 years old, with different pedagogical experience and were representatives of all regions of the country. A specially developed international questionnaire with closed questions was applied. Alternative analysis and chi-square Pearson's test (×²) were used to analyze the results. The results show that the sampled teachers evaluated the current use of online education in physical education and sport as relatively good (47.1%). At the same time, the acquired results show that the educational activity of sports pedagogues during the pandemic has reduced their motivation for professional activity (43.5%). Teachers have rated as very good (29.7%) and good (45.7%) their competencies for using online technologies to conduct physical education and sports classes. The majority of them – 79%, actively applied the new technologies in the training process. No differences were found in the answers of the respondents to any of the questions on the criteria of gender, age and pedagogical experience.
INTRODUCTION OF ELEMENTS FROM PROBABILITY THEORY IN THE EDUCATION IN MATHEMATICS FOR PRIMARY SCHOOL
Authors: Temnikova Maria 
Published: November 2021

The article considers the prerequisites for the inclusion of problems with elements of probability theory in mathematics education in grades 1-4. This type of task is generally not present in the compulsory curriculum in mathematics in primary school, but they could be used in classes for compulsory, extended, and additional training, thus creating conditions for implementing developmental learning.
Some theoretical statements about the theory of probabilities are systematized, related to the tasks included in the constructed and approbated methodological system of work. Some of its characteristics are presented. This article offers some of the tasks for grades 1-4.
A longitudinal empirical study was conducted with students of the 1-4th grade in the period 2015 to 2020. The results of the outgoing diagnostics in 4th grade are processed by mathematical and statistical methods and are presented graphically. They show that fourth-graders successfully solve problems with elements of probability theory, and a primary school teacher could use them in the systematic work in mathematics at the initial stage of the basic educational degree.
Solving non-standard mathematical problems is an element of probability theory that helps arouse interest, motivate students, and place them in an active cognitive position by solving problem situations in the pedagogical interaction in mathematics in primary school.
CC-CV Controlled Fast Charging Using Fuzzy Type-2 for Battery Lithium-Ion
Authors: Falih Ahmad Zidan , Efendi Mohammad Zaenal , Murdianto Farid Dwi 
Published: November 2021

Energy dependency is increasing along with the increase in population growth rate, while the fossil energy is decreasing. Alternative energy such as solar energy is one solution to provide renewable energy, but solar energy cannot provide an intense supply of energy. Therefore, the equipment needs an energy storage. The battery has important role in energy storage with the performance of the battery that need an attention. The method and type of battery used must be considered to maintain battery lifetime and reduce overcharging. The purpose of this research is to understand the process of fast charging the CC-CV (Constant Current Constant Voltage) method on Lithium-Ion battery which is expected to reduce battery overcharging. In this method, the current is maintained constant until certain conditions then followed by constant voltage to prevent overcharging. The voltage from the solar panel is very high, voltage reduction is needed as the charging voltage for the battery. The DC-DC Converter used is Buck Converter which is given Fuzzy Type-2 algorithm to maintain a current of 10 Ampere during CC conditions and a voltage of 14.4 Volt during CV conditions with switch of CC conditions to CV conditions on SoC 99.25%.Keywords: battery charging, buck converter, CC-CV, lithium-ion, type-2 fuzzy.
Hip decompression combined with bone marrow concentrate and platelet-rich plasma for corticosteroid-induced osteonecrosis of the femoral head
Authors: Houdek Matthew T. , Wyles Cody C. , Smith John-Rudolph H. , Terzic Andre , Behfar Atta , Sierra Rafael J. 
Published: November 2021

Aims Bone marrow-derived mesenchymal stem cells obtained from bone marrow aspirate concentrate (BMAC) with platelet-rich plasma (PRP), has been used as an adjuvant to hip decompression. Early results have shown promise for hip preservation in patients with osteonecrosis (ON) of the femoral head. The purpose of the current study is to examine the mid-term outcome of this treatment in patients with precollapse corticosteroid-induced ON of the femoral head. Methods In all, 22 patients (35 hips; 11 males and 11 females) with precollapse corticosteroid-induced ON of the femoral head underwent hip decompression combined with BMAC and PRP. Mean age and BMI were 43 years (SD 12) and 31 kg/m² (SD 6), respectively, at the time of surgery. Survivorship free from femoral head collapse and total hip arthroplasty (THA) and risk factors for progression were evaluated at minimum five-years of clinical follow-up with a mean follow-up of seven years (5 to 8). Results Survivorship free from femoral head collapse and THA for any reason was 84% and 67% at seven years postoperatively, respectively. Risk factors for conversion to THA included a high preoperative modified Kerboul angle (grade 3 or 4) based on preoperative MRI (hazard ratio (HR) 3.96; p = 0.047) and corticosteroid use at the time of decompression (HR 4.15; p = 0.039). The seven-year survivorship for patients with grade 1 or 2 Kerboul angles for conversion to THA for articular collapse, and THA for any reason, were 96% and 72%, respectively, versus THA for articular collapse and THA for any reason in patients with grade 3 or 4 Kerboul angles of 40% (p = 0.003) and 40% (p = 0.032). Conclusion At seven years, hip decompression augmented with BMAC and PRP provided a 67% survivorship free from THA in patients with corticosteroid-induced ON. Ideal candidates for this procedure are patients with low preoperative Kerboul angles and can stop corticosteroid treatment prior to decompression. Cite this article: Bone Jt Open 2021;2(11):926–931.
Shockley-Queisser analysis of the temperature-efficiency correlation of solar cells in the presence of non-radiative heat transfer: erratum
Authors: Zhang Zheng , Chen Kaifeng , Fan Shanhui , Chen Zhen 
Published: November 2021

This erratum corrects a typographical error in Fig. 2 of our published paper [Opt. Express 29, 27554 (2021)10.1364/OE.434751].
Study of aerobic and anaerobic bacterial profile of nosocomial infections and their antibiotic resistance in a referral center, Southwest Iran: A three year cross-sectional study
Authors: Ahmadkhosravi Nazanin , Khosravi Azar Dokht , Asareh Zadegan Dezfuli Aram , Hashemzadeh Mohammad , Saki Morteza , Mehr Fatemeh Jahangiri , Izadpour Farokh 
Published: November 2021

BackgroundThe drug resistance is expected to be the most important challenge in infection control in Iran, where there is no local report or standard drug resistance monitoring system. Therefore, this study aimed to investigate the aerobic and anaerobic bacterial profile of nosocomial infections and their antibiotic resistance in Ahvaz, southwest Iran.MethodologyThe gram-positive and gram-negative bacteria were identified on the basis of conventional culture and biochemical tests. The antibiotic resistance of the bacterial isolates against antibiotics was determined by the disk diffusion method.ResultsAmong total 1156 collected positive samples,E.coliand coagulase-negative staphylococci (CoNS) were the most frequent pathogenic gram negative bacteria (GNB) and gram positive bacteria (GPB) respectively. Drug susceptibility testing revealed that among GNB,P.aeruginosawas 100% resistant to amikacin, cefepime, ciprofloxacin and tetracycline. In the case ofE.coli, the resistance rate was (98%) for trimethoprim sulfamethoxazole and cefepime. For GPB,S.aureusshowed the highest resistance rates to amikacin (100%) and clindamycin (100%). In addition, CoNS strains showed a high level of resistance to doxycycline (100%), erythromycin (100%) and cefoxitin (97%). InBacteroeides fragilisisolates, the highest resistance rate belonged to clindamycin (72%), andClostridium perfringensstrains showed high level of resistance to penicillin (46%).ConclusionThe results highlighted that there are distinct factors leading to antimicrobial resistance in Ahvaz, southwest Iran. The primary contributors to the resistance development, include poor surveillance of drug-resistant infections, poor quality of available antibiotics, clinical misuse, and the ease of access to antibiotics. Moreover, similar factors such as self-medication and the lack of regulation on medication imports play a role in antibiotic resistance in the region.
Usefulness of Hamilton rating scale for depression subset scales and full versions for electroconvulsive therapy
Authors: Fenton Caoimhe , McLoughlin Declan M. 
Published: November 2021

ObjectivesWe investigated the predictive value of subset scales and full versions of the Hamilton Rating Scale for Depression (HAMD) for therapeutic outcomes in ECT.MethodsThis secondary analysis of patients with major depression (N = 136; 63% female; age = 56.7 [SD = 14.8]) from the EFFECT-Dep trial (NCT01907217) examined the predictive value of Evans-6, Toronto-7, Gibbons-8 and Maier-Philip 6 HAMD subset scales and three ‘full’ versions (HAMD-17, HAMD-21 and HAMD-24) on therapeutic outcomes. We also examined early improvement on subset scales and full versions as predictors of response and remission and explored predictive abilities of individual HAMD-24 items.ResultsThe subset scales and full scales lacked sufficient predictive ability for response and remission. Receiver operating characteristic curves identified a lack of discriminative capacity of HAMD subset scales and full versions at baseline to predict response and remission. Only the Maier-Philip-6 was significantly associated with percentage reduction in HAMD-24 scores from baseline to end of ECT course. Early improvement on most of the subset scales and full versions was a sensitive and specific predictor of response and remission. Four of the HAMD-24 items were significantly associated with response and one with remission.ConclusionsLimited utility of the HAMD subset scales and full versions in this context highlight a need for more tailored depression rating scales for ECT.
Comparison of real time PCR and conventional PCR by identifying genomic DNA of bovine and porcine
Authors: Munir Muhammad Abdurrahman , Inayatullah Ahlam 
Published: November 2021

Bovine and porcine are poultry meat that consumed worldwide particularly in Southeast Asia.Both of them are prone to food counterfeit owing to several factors such as price, appetite and Halal status. Sensitive and selective analytical methods are required to control meat products that distributed to markets. This paper studied the sensitivity between real – time and conventional PCR or known as qPCR and cPCR, respectively. Bovine and porcine were samples used to verify the sensitivity of them. Nevertheless, those instruments did not show a specific difference during DNA analysis of bovine and porcine. In conventional PCR, two pairs of DNA primers targeted cytochrome b (Cyt b) was analyzed, resulting of 120 and 131 amplicons, respectively. While qPCR applied to analyze porcine and bovine DNA. The detection limit of qPCR after porcine and bovine analysis were at 0.004 and 0.007 µg/µL, respectively. Results demonstrated the qPCR was reliable for verifying porcine and bovine DNA compared to conventional PCR. Furthermore, the study concluded that the developed assay can be easily employed for the identification of porcine and bovine tissue in food products in low resource areas.
Effect of HNT on mechanical and thermal properties of poly(lactic acid)/polypropylene carbonate blends
Authors: Haneef Intan Najwa Humaira Mohamed , Buys Yose Fachmi , Shaffiar Norhashimah Mohd , Shaharuddin Sharifah Imihezri Syed , Hamid Abdul Malek Abdul , Sabri Mohd Faizul Mohd , Afifi Amalina Muhammad 
Published: November 2021

In this work, the influence of halloysite nanotubes (HNTs) on the mechanical and thermal properties of the poly(lactic acid)/polypropylene carbonate (PLA/PPC 70/30) blend was studied. The HNT was incorporated into the PLA/PPC blend by melt mixing. It was found that addition of 2-6 wt % HNT successfully improved the tensile and flexural strength as well as the flexural and Young’s moduli of PLA/PPC blend, due to the reinforcing effect. Although the elongation at break decreases with increasing HNT content, its value is much higher than that of pure PLA. Moreover, the addition of HNT didnot affect the miscibility of PLA and PPC, since two glass transition temperatures were observed in the DSC thermograms. However, a higher content of HNT may improve the compatibility between PLA and PPC as evidenced by the lower difference between the glass transition temperature of PPC and PLA and reduced crystallinity resulting in higher tensile strength of nanocomposites.Keywords: PLA, PPC, HNT, mechanical properties, thermal properties.
ANALYSIS OF SCIENCE MATERIALS SOCIALIN MI/SD, CONFORMITY OF CHARATERISTICS, HOTS, AND 4C
Authors: Yuliananingsih Yuliananingsih 
Published: November 2021

Abstract: Teaching material is an important learning element, it gets the attention of the teacher so that students can learn the things needed to achieve learning goals. This analysis aims to determine the suitability of class IV thematic textbooks with the Ministry of Education and Culture regulation Number 21 of 2016, the scope of social studies material. The suitability of textbooks with the characteristics of students and the literacy contained therein. The results of the analysis show: 1) Based on the content standards contained in the Regulation of the Minister of Education and Culture Number 21 of 2016, Class IV Thematic textbooks published by the Ministry of Education and Culture have met the predetermined standards. 2) it is in accordance with the development of students both in terms of material presentation, writing and image portions in the textbook. 3) there is no HOTS in the whole learning theme. 4) and there is financial literacy, culture and citizenship and character education.
Keywords: Teaching materials, thematic textbooks, social studies material.
Management mit Angst?
Authors: Albert Andreas , Betzelt Sigrid , Bode Ingo , Parschick Sarina 
Published: November 2021

ZusammenfassungFür die Managementforschung haben Führungskräfte im Sozialwesen bislang kaum eine Rolle gespielt, wenngleich dort die Umgestaltung von Leitungsroutinen nach Vorbildern der Privatwirtschaft schon lange ein Thema ist. Die vor allem mit dem Ziel der Effizienzsteigerung vorangetriebene Implementierung von – für das Sozialwesen fremdartigen – Ordnungskonzepten, welche intern und extern mit stärkerem Kontrolldruck einhergehen, schafft für das Management dilemmatische Situationen, gilt es doch, diese Konzepte mit weiterhin fortbestehenden klassisch-fürsorglichen Leistungserwartungen in Einklang zu bringen und diesbezüglich Wesentliches „zu retten“. In Anbetracht dieses Spannungsfeldes fragt der vorliegende, zwei Bereiche des Sozialwesens (stationäre Pflege, Jugendberufshilfe) fokussierende Beitrag nach der emotionalen Bewältigung entsprechender Balanceakte im geschäftsführenden und mittleren Management sowie nach möglichen Folgen im Organisationsgeschehen. In einer qualitativen Analyse von Erfahrungsberichten zeigt sich, dass vielfältige Unsicherheiten und (latente) Ängste die Managementpraxis durchziehen und in einem nicht zuletzt durch institutionelle Vorgaben dauerstrapazierten Sozialwesen zu einer besonderen Belastung werden können.
Migrationskonzept zur Einführung von Ethernet TSN in die Feldebene
Authors: Schriegel Sebastian , Jasperneite Jürgen 
Published: November 2021

Zusammenfassung
Anwendungen, wie z. B. eine datengetriebene Prozessüberwachung oder eine für die Fertigung kundenindividueller Produkte notwendige wandlungsfähige Produktionstechnik, erzeugen neue und zusätzliche Anforderungen an die Industrielle Kommunikation. Die Kommunikation muss stoßfrei rekonfiguriert werden können, um Plug-and-Play-Dienste zu ermöglichen und so skalierbar und sicher sein, dass eine vertikale Kommunikation vom Sensor bis zur Cloud möglich wird. Als Basis für ein skalierbares Kommunikationsnetzwerk, welches von verschiedenen echtzeitfähigen oder nicht-echtzeitfähigen Protokollen konvergent genutzt werden kann und so die bisher harte Grenze zwischen IT und Feldebene durchlässig macht, soll Ethernet TSN verwendet werden. Um auch einfache Sensoren ohne Gateways anzuschließen, sollen neue physikalische Übertragungstechnologien, Single Pair Ethernet (SPE) eingesetzt werden. Lange Lebenszyklen von Produktionsanlagen und Automatisierungstechnik führen allerdings dazu, dass die Einführung und Verbreitung neuer Technologien nur langsam erfolgt. Dabei unterliegt die Einführung der genannten Technologien unterschiedlichen Einflüssen: So ist die Einführung von TSN als Netzwerktechnologie gegenüber einer Physical Layer-Technologie, wie Single Pair Ethernet, oder einer Protokolleinführung, wie OPC UA, besonders schwer, da TSN nur dann genutzt werden kann, wenn alle Geräte eines Netzwerkes TSN auch unterstützen. Migrationsstrategien für Feldgeräte sind heute häufig unzureichend. Ein neuer Ansatz für eine verbesserte Migrationsstrategie für Feldgeräte, der die Einführung von Ethernet TSN in die Feldebene ermöglicht, ist der Ethernet Bridge-Modus „Time Aware Forwarding“. Time Aware Forwarding vereinfacht die Umsetzung von TSN in Feldgeräte mit zwei Ports. Bestehende PROFINET-Hardware und -Geräte erlangen mit diesem Verfahren die geforderten Funktions- und Leistungsmerkmale, wie Synchronität und geplanter Datenverkehr, um mit TSN-Netzwerken zusammenarbeiten zu können.
On trajectory tracking control of fluid-driven actuators
Authors: Hoffmann Kathrin , Müller Daniel , Simon René , Sawodny Oliver 
Published: November 2021

AbstractFluid-driven actuators are not only well-established in automation, but also a promising drive technology for collaborative robots. Their inherent compliance due to the compressibility of suitable fluids such as air, as well as their direct drive properties are advantageous safety features for human-machine collaboration. In this work, we provide an overview of different fluid-driven manipulators, namely fluidic muscle actuated ones, continuum manipulators, and those with rotary joints. For the latter, we introduce the mathematical model including mechanics and pressure dynamics and describe its properties such as strong nonlinearities, which make trajectory tracking control challenging. A model-based nonlinear cascaded controller is presented. Experimental results on a 6 degrees of freedom (DOF) prototype demonstrate the resulting trajectory tracking performance.
Yield, volume, quality, and reduction of biotic stress influenced by titanium application in oilseed rape, winter wheat, and maize cultivations
Authors: Jajor Ewa , Zamojska Joanna , Dworzańska Daria , Horoszkiewicz-Janka Joanna , Danielewicz Jakub , Węgorek Paweł , Korbas Marek , Ciecierski Wiesław , Bocianowski Jan , Wilk Radosław 
Published: November 2021

Abstract
The study presents the results of research on the influence of a mineral growth stimulant containing titanium (Ti) in the form available to plants, applied to reduce the effects of biotic stresses caused by agrophages, namely fungal pathogens and selected insect pests. The study was conducted in 2014 and 2015 on winter oilseed rape, winter wheat, and maize. The purpose of the study was to determine the influence of the Ti-containing stimulant on the degree of damage caused by major pests occurring in the crops (cabbage seed weevil, cereal leaf beetle, and European corn borer), the degree of infestation with fungal diseases (gray mold, Alternaria disease, eyespot, foot rot, sooty mold, glume blotch, Fusarium head blight, Fusarium stalk rot, maize smut, and brown spot), and yield parameters. The study showed that the stimulant containing Ti successfully reduced the occurrence of pest damage to winter rapeseed and winter wheat plants and the occurrence of diseases in winter rapeseed, winter wheat, and maize crops. Thus, the application of the Ti stimulant resulted in an increased yield of the crops being tested. The main factor explaining this phenomenon is unknown, and it is probably the result of several factors. The study contains the discussion on this phenomenon.
Kinetics of catalytic treatment of coking wastewater (COD, phenol and cyanide) using wet air oxidation
Authors: Verma Vibha , Ghosh Prabir , Singh Santosh Bahadur , Gupta Vandana , Chaudhari Parmesh Kumar 
Published: November 2021

Abstract
Coking wastewater (CWW) is known as a highly polluting effluent. This study deals with the degradation of pollutants in terms of COD, phenol and cyanide present in CWW using catalytic wet air oxidation (CWAO) process. CWAO was carried out in batch mode using various catalysts. The investigated operating parameters are initial pH (pH
i
) 3–11, temperature (T) 100–160 °C, air partial pressure (p
air) 2–6 MPa, catalyst mass loading (C

w
) 2–5 g/L and treatment time (t

R
) of 0–6 h. Among various catalysts, the copper chloride was proved to be best for degradation of pollutants. The optimum conditions were evaluated for the degradation of organic compounds as T 130 °C, p
air 8.8 MPa, C

w
3 g/L and t

R
= 6 h. The maximum percentage reduction of COD, phenol, and cyanide was achieved through experiment at T 160 °C, p
air 12.2 MPa, C

w
5 g/L and t

R
6 h as 97.32%, 97.94% and 99.87%, respectively. The kinetics studies were also performed to evaluate the rate constant (k), and reaction order with respect to COD, phenol, CN, CW and p
air.