bluuebunny/crossref_metadata_2025 huggingface dataset:
Burials with Parting Food of the Great Migration Period from the Burial Ground near the Village Luchistoe (South-Western Crimea)
Authors:   V.I. Vernadsky Crimean Federal University, Aibabin Aleksandr , Khairedinova Elzara ,   Institute of Archaeology of Crimea of the Russian Academy of Sciences
Published: January 2022

The article publishes two new complexes of the late 4th — first half of the 5th century from the burial ground near the village Luchistoe. A warrior with a spear is buried in vault 152, and a warrior with a dagger with cutouts on the blade at the heel of the blade is buried in grave 269. In both burials, two buckles of variant 3 were found. Judging by the location on the bones, a large buckle fastened a waist belt to which an iron knife was hung on the left side. The small buckle was for the belt on the pants. In the burials, the remains of parting food were found — sheep bones and eggshells, as well as sets of dishes for a feast — jugs with a drink and goblets for drinking it. Parting food was prepared from the meat of various animals — sheep, less often — a pig or a bull. In this case, meat of a young or semi-mature animal was always used. Only certain parts of the carcass were placed in the burials — a shoulder or ribs.
Sacrifices of Horses in “Princely” Tombs During the Late Phase of the Great Migration Period
Authors:   National Center for Scientific Research, UMR–8167 “East and Mediterranean”, Kazanski Michel
Published: January 2022

The article considers a few graves of the elite of the Great Migration Period, containing several burials of horses. In the German context, this is a “royal” burial in Tournai on the territory of modern Belgium, owned by King Childeric (died 481/482) and burials in a barrow in Žuráň, in South Moravia, probably belonging to the Lombard royal family. Their parallels in Eastern Europe are finds in the necropolis of Sirenevaya Buhta in the Eastern Crimea and Malai in the region of Eastern Azov Sea. Horse burials in Western and Central Europe can be associated with the influence of the Huns on aristocratic civilization, and reflect the high social status of the buried.
Attitudes Toward Mathematics: A Quantitative Study On The Changing Attitudes Toward Mathematics For Middle School Students
Authors: Vila Carolina
Published: January 2022

Mathematics education continues to be a challenging matter to explore in the United States. For instance, student mathematics achievement rate has decreased or remained unchanged over the last few decades (“NAEP – 2015 Mathematics,” 2015; Provasnik, Stephens, & Perkins, 2016). Moreover, when students advance through grade-levels in school their attitudes toward mathematics often decrease (Ing & Nylund-Gibson, 2017; Mullis et al., 2016; Tuohilampi et al., 2014). This quantitative study aims to measure changes in attitudes toward mathematics across the middle school years. Five attitudinal factors emerged from the study: (1) self-efficacy and self-concept beliefs, (2) motivation to succeed in mathematics, (3) value of mathematics, (4) mathematics anxiety and stress, and (5) enjoyment of mathematics. By using a modified survey instrument and analysis of variance tests, the researcher found significant decreases in the areas of motivation to succeed in mathematics, value of mathematics, and enjoyment of mathematics among 547 sixth, seventh, and eighth graders. As a secondary analysis, the researcher found key differences in attitudes between the two traditional genders, and between standard level and advanced level mathematics classes, and among different races. In these analyses, the reported highest levels of positive attitudes toward mathematics were male, Asian, and students in the advanced level mathematics classes. Additionally, the researcher found correlations among the five factors which revealed multiple key associations. Keywords: Mathematics Education, Attitudes, Changes, Middle School Students
The Continuing Education Of Adult Development And Lifelong Transformation: A Multidisciplinary Approach To Promote Adult Learning
Authors: Quayson Felix
Published: January 2022

This paper aims to offer seminal knowledge on the engaging process of lifelong learning on adult development and transformation to adult learners through critical analysis of the publications of (Vella 2002; Clark & Caffarella, 1999; Baumgartner & Merriam, 1999; King, 2007). This particular discussion intersect a multidisciplinary approach and present positive images of aging and the pivotal role educators play in its process. There are some theories that promote and reveal adult education with a higher purpose, and still, there are some theories that inhibit such growth and transformation. In particular, biological, psychological (cognitive and psychomotor), and socio-economic dimensions influences the ability for adults to function in their environment as a whole. Regardless of the differences individuals possess, adult learners are linked with the power of dialogue, and the willingness to make their own decisions. This paper intends to capture readers’ mind to embrace the complexities adult learners face in education and the scope of mind-body connection pertaining to their decisions in adulthood and to make sense of the diverse and multidimensional development of adults for the purpose of their education. In a larger sense, the most important tasks of adult learning and education are meaningful feedback and communication skills that are necessary to facilitate their learning process. Keywords: Adult Development, Adult Transformation, Lifelong Learning, Adult Theories, Continuing Education, Adult Learning, https://orcid.org/0000-0001-8444-8619
Chemical Compositions of Selected Browse Species Used as Goat Feed in Bena-Tsemay district of South Omo, South-Western Ethiopia
Authors: Hidosa Denbela
Published: January 2022

The browse species are an important source of nutrients for goats in arid range-land. However, the chemical compositions of browse species used as goat feed in Bena-Tsemay district have not studied and documented for future long-term utilization which target to properly balance their inclusion levels in animal diets. Thus, this study was conducted to assess chemical compositions of selected browse species browsed by goats. The leaves of fourteen browse species samples were collected from range-land and analyzed for chemical compositions in completely randomized block design by using the Generalized Linear Model (GLM) procedures of SAS. The higher (p<0.05) crude protein (CP) (198g/kg, DM) was observed in A. marina leaves, while the lower CP levels (125g/kg, DM) and (126g/kg, DM) were observed in A. tortilis and G. tenax leaves, respectively. The S. birrea leaves had higher (p<0.05) estimated dry matter intake (94.05g/kg, DM), while it was lower (58.57g/kg, DM) for A. tortilis leaves. However, the digestible dry matter (DDM), total digestible nutrients (TDN), relative feed value (RFV) and metablisable energy (ME) values were similar (p<0.05) among the all studied browse plant species. Based on result from this study, it can be concluded that all studied browse plants had high-quality-protein to supplement poor-quality-roughage feeds for enhanced livestock production. Also, it is suggested that future research will consider the supplementation effects of browse plant on animal performances (meat, milk and growth rate).
The Influence of Destination Branding and Tourism Security on Revisit Intention During Covid-19 in the Uluwatu Temple, Bali, Indonesia
Authors: Chen Jui-Lung , Yuni Indrianti Fellyana
Published: January 2022

The condition of the COVID-19 pandemic has caused all destinations to experience a decline in visitors, so the government has created programs such as destination branding so that destination managers and tourism business actors can take many ways to survive. Three things will be a strategy to increase tourist visits after the Covid-19 pandemic at Uluwatu Temple as a main consideration for tourists who want to travel to tourist attractions. The three are health, hygiene and safety. Therefore, this study was conducted to determine the effect of destination branding and tourism safety on revisit intention. The hypothesis tested with a purposive random sampling technique with the total number of 250 respondents. The finding indicates visitor really pay attention to the influence of sustainability in the way they examine revisit intention. This study has six hypotheses and the results of all hypotheses support the intention to revisit and recommend.
Indledning. Jørgen Bæk Simonsen 70 år
Authors: Agerschou-Madsen Fannie
Published: January 2022

Forord
Omar – en islamistisk tv-serie?
Authors: Skovgaard-Petersen Jakob
Published: January 2022

Set i tilbageblik var 2012 islamisternes år i Mellem-østen. Revolutionerne i året forinden havde ført til dramatiske magtskifter i enkelte lande, kontrollerede overdragelser i andre, og borgerkrig i atter andre.
Effects of intrauterine growth restriction during late pregnancy on the cell growth, proliferation, and differentiation in ovine fetal thymuses
Authors: Zi Yang , Ma Chi , He Shan , Yang Huan , Zhang Min , Gao Feng , Liu Yingchun
Published: January 2022

Objective: This study investigated the effects of intrauterine growth restriction (IUGR) during late pregnancy on the cell growth, proliferation, and differentiation in ovine fetal thymuses.Methods: Eighteen time-mated Mongolian ewes with singleton fetuses were allocated to three groups at d 90 of pregnancy: restricted group 1 (RG1, 0.18 MJ ME/body weight [BW]0.75/d, n = 6), restricted group 2 (RG2, 0.33 MJ ME/BW0.75/d, n = 6) and control group (CG, ad libitum, 0.67 MJ ME/BW0.75/d, n = 6). Fetuses were recovered at slaughter on d 140.Results: The G0/G1 phase cell number in fetal thymus of the RG1 group was increased but the proliferation index and the expression of proliferating cell nuclear antigen (PCNA) were reduced compared with the CG group (p<0.05). Fetuses in the RG1 group exhibited decreased growth hormone receptor (GHR), insulin-like growth factor 2 receptor (IGF-2R), and their mRNA expressions (p<0.05). For the RG2 fetuses, there were no differences in the proliferation index and PCNA expression (p>0.05), but growth hormone (GH) and the mRNA expression of GHR were lower than those of the CG group (p<0.05). The thymic mRNA expressions of cyclin-dependent protein kinases (CDKs including CDK1, CDK2, and CDK4), CCNE, E2-factors (E2F1, E2F2, and E2F5) were reduced in the RG1 and RG2 groups (p<0.05), and decreased mRNA expressions of E2F4, CCNA, CCNB, and CCND were occurred in the RG1 fetuses (p<0.05). The decreased E-cadherin (E-cad) as a marker for epithelial-mesenchymal transition (EMT) was found in the RG1 and RG2 groups (p<0.05), but the OB-cadherin which is a marker for activated fibroblasts was increased in fetal thymus of the RG1 group (p<0.05).Conclusion: These results indicate that weakened GH/IGF signaling system repressed the cell cycle progression in G0/G1 phase in IUGR fetal thymus, but the switch from reduced E-cad to increased OB-cadherin suggests that transdifferentiation process of EMT associated with fibrogenesis was strengthened. The impaired cell growth, retarded proliferation and modified differentiation were responsible for impaired maturation of IUGR fetal thymus.
Sistema para Reabilitação Motora e Análise Compensatória pós Acidente Vascular Encefálico
Authors: Cyrino Gabriel , Zago Najara , Aramaki Roberta , Cardoso Alexandre , Soares Alcimar , Lamounier Edgard
Published: January 2022

O Acidente Vascular Encefálico é uma das doenças mais comuns que levam ao comprometimento da destreza dos membros superiores. Novas abordagens terapêuticas, como ambientes virtuais, têm se preocupado com o aprimoramento avaliativo de protocolos individualizados, que integram a reabilitação sensorial para uma maior recuperação funcional de indivíduos. Porém, em resposta a perda funcional de um membro, é comum o aprendizado de formas compensatórias de movimento. Esta proposta aborda um sistema composto por um ambiente virtual e um dispositivo robótico, altamente personalizáveis com o objetivo de auxiliar na reabilitação motora de pacientes com hemiparesia nos membros superiores, decorrente de um Acidente Vascular Encefálico, bem como analisar sua dinâmica de movimento através de um modelo biomecânico.
A study of Augmented Reality as a teaching and learning technology in the field of Design
Authors: Tavares Joyce , Cortiz Diogo
Published: January 2022

This paper aims to describe the results of a study about the effectiveness of Augmented Reality (AR) as a learning tool in Design. We proposed a design experiment to assess whether AR could improve learning in introductory drawing lessons. We used a sample of 60 students (N=60) from a technical school in the west of greater São Paulo for this purpose. The sample was divided into two groups: the control group (using just drawing regular tools) and the experimental group (using AR as an additional tool). Three expert reviewers were recruited to evaluate the final design of the participants. The reviewer evaluation results showed no statistical significance regarding reviewers' evaluation between control and experimental groups; however, a survey with the same students showed a statistical significance in their preference for using AR. A qualitative survey with participants also showed a preference for using AR. Based on those results, we argue that although the results did not show a significant difference from the evaluators' point of view, the students' perception suggests that AR can be an important auxiliary tool in the learning process.
Compression and Recovery Functional Application for the Sportswear Fabric
Authors: Guru Ramratan , Kumar Varshney Rajeev , Kumar Rohit
Published: January 2022

A sportswear fabric should have good stretch and recovery behaviour. This study facilitates an effective design and development of high-stretch sportswear using different knitted structure. Nine types of knitted fabrics were produced by varying the type of fibre and type of structure. An experiment work is done to study the fabric size, stretch and elastic recovery properties. The statistical analysis showed that type of fibre and type of knitted structure significantly influence the fabric stretch. Plain structure fabric showed higher stretch value than rib and interlock-knitted fabric. The high stitch density caused by reduce stretch value in the course- and wale-wise due to yarn floating rather than overlapping influenced the weight and thickness of knitted fabrics. The elastic recovery analysis indicated that the recovery value of plain-knitted structure with polyester-spandex blend is higher among studied fabrics. However, the recovery value decreased over time in comparison with stretch value.
History and current state of analytical research at the Institute of the Earth’s Crust SB RAS: Centre for geodynamics and geochronology
Authors: Ivanov A. V. , Demonterova E. I. , Revenko A. G. , Sharygin I. S. , Kozyreva E. A. , Alexeev S. V.
Published: January 2022

The article discusses the history of the development of analytical research at the Institute of the Earth’s Crust, Siberian Branch of the Russian Academy of Sciences over the past 22 years. An overview of the existing scientific equipment, current analytical techniques and some examples of their application in geological research are provided. It is shown that the availability of highly qualified personnel and modern scientific equipment at the Center for Geodynamics and Geochronology allows, both entirely on its base and in cooperation with other Russian and foreign organizations, to conduct state of the art research with the publication of results in leading international journals.
The first record of Corbicula fluminea (O. F. Müller, 1774) in Moravia (SE Czech Republic)
Authors: Komzák Petr , Beran Luboš , Horsák Michal
Published: January 2022

Corbicula fluminea, an invasive bivalve of SE Asian origin, has been recorded in the Morava River in Moravia (SE Czech Republic, Danube River basin) for the first time in 2018.
Vodní měkkýši Sázavy a vybraných přítoků se zaměřením na ohrožené a nepůvodní druhy [Aquatic molluscs of the Sázava River and its selected tributaries with a focus on threatened and non-native species]
Authors: Beran Luboš
Published: January 2022

This paper presents the results of a malacological survey of the Sázava River and its tributaries conducted over the last 20 years. The Sázava River (Czech Republic, Central and Eastern Bohemia) is one of the major tributaries of the Vltava River. Altogether 45 species of aquatic molluscs were found at 221 sites located at the Sázava River and its tributaries. More than 60% of recorded species of the Sázava River and its tributaries are common and widespread. The population of critically endangered Margaritifera margaritifera in the Jankovský potok is near extinction. Other threatened bivalves Pseudanodonta complanata, Unio crassus and Sphaerium rivicola were recorded in the Sázava River. Populations of U. crassus were also found in several tributaries (Blanice, Hejlovka, Martinický potok) while in the Sázavka Brook and the Želivka River only a few individuals were found. Gyraulus acronicus, a rare gastropod in the Czech Republic, was recorded in the Blanice River and several dam reservoirs. Four non-native species (Potamopyrgus antipodarum, Physa acuta, Gyraulus parvus, Dreissena polymorpha) were found in the monitored streams and reservoirs but usually in a relatively small number of localities. Most of these were located in the lower section of the Sázava River, Švihov dam reservoir and some tributaries.
Malacological news from the Czech and Slovak Republics in 2015–2019
Authors: Čejka Tomáš , Beran Luboš , Korábek Ondřej , Hlaváč Jaroslav Č. , Horáčková Jitka , Coufal Radovan , Drvotová Magda , Maňas Michal , Horsáková Veronika , Horsák Michal
Published: January 2022

Since the last comprehensive overview of the Czech and Slovak mollusc fauna, released in 2013, several records of species new for the countries or particular regions have appeared. In this paper, we summarize all such records and news collected in 2015–2019, including those affecting nomenclature and the national Check-lists made in 2013 and 2014. The rules for the selection of the records are: (i) the first record in Bohemia, Moravia or Slovakia, (ii) regionally important new records, (iii) records of species listed in NATURA 2000 and the national Red-lists as either critically endangered or endangered species, and (iv) currently spreading non-native species. New records are briefly commented and summarized for each species separately. Location data are published with all details in a supplementary table and are freely accessible.
Political neutrality in the audit profession: attitudes of respondents in the Republic of Serbia
Authors: Jakovljević Nemanja
Published: January 2022

Political neutrality represents independence from the political activities, as well as from all other activities that can be considered subordinated to direct or indirect political influence. At the individual level, there are two concepts of political neutrality. The subject of this paper is research on the attitudes of respondents engaged in audit profession on political neutrality and challenges to political neutrality. The research was conducted through a survey distributed to the addresses of persons engaged in audit profession in the Republic of Serbia. The main conclusion is that it is necessary to reconsider certain measures to improve the awareness of persons engaged in audit profession on political neutrality, its importance, threats that may violate political neutrality, and protection measures that can be taken at the individual and collective level to preserve political neutrality and audit firms.
Savremeno poslovno komuniciranje sa stanovišta menadžmenta
Authors: Vuković Milovan , Urošević Snežana , Mladenović Ranisavljević Ivana
Published: January 2022

Odavno se zna da na komunikacija ispunjava najveći deo vremena rada menadđera tako da ona, saglasno tome, predstavlja neizbežan predmet proučavanja i u nedavno sprovedenim istraživanjima na polju menadžmenta. Postoji opšte očekivanje da jasna i efektivna komunikacija u organizaciji predstavlja ključni resurs za postizanje njenih ciljeva. Ovo je, međutim, lakše reći nego ostvariti u stvarnom organizacionom kontekstu. Glavni cilj ovog rada je da ukaže na značaj komunikacije u savremenom poslovanju. U najvećem delu rada se razmatra uloga menadžera u svetlu njihovih uloga na polju komuniciranja. U radu je pokazano da različite profesionalne veštine, uključujući i komunikativnu kompetentnost, manadžeri mogu da nauče i uvežbaju u nastojanju da efektivno učestvuju u bilo kojoj formi komunikacije unutar organizacije.
Oglašavanje na društvenoj mreži Facebook
Authors: Đuričanin Jasminka , Gasic Marko , Veličković Jelena , Pavlović Nebojša
Published: January 2022

Eksponencijalni rast korisnika na društvenim mrežama širom sveta naveo je preduzeća da istraže efikasne načine njihovog prisustva na društvenim mrežama. U skladu sa tim, trend oglašavanja kao jedan od najvažnijih oblika komunikacionog miksa se promenio i sada su preduzeća uglavnom fokusirana na oglašavanje na društvenim mrežama. Postoji veliki broj društvenih mreža koja preduzeća mogu da koriste za oglašavanje, međutim, ovaj rad ukazuje na značaj oglašavanja putem društvene mreže Facebook, imajući u vidu činjenicu da je Facebook najveća i najpopularnija društvena mreža na svetu i predstavlja savršen marketinški alat sa izgrađenim sistemom oglašavanja koji preduzećima omogućava da koriste informacije svakog korisnika za ciljano oglašavanje. Otuda je Facebook najdominantnija društvena mreža za oglašavanje, što svako preduzeće treba da uzme u obzir prilikom kreiranja marketinških strategija, kako bi stekli i održali konkurentsku prednost i maksimizirali poslovni uspeh. U radu su prikazani sekundarni podaci koji jasno ukazuju da je Facebook društvena mreža koja ima najviše potencijala za oglašavanje, dostizanje i angažovanje potrošača, a što je potkrepljeno diskusijom rezultata empirijskih istraživanja.
Reflektovanje unapređenja poslovnih procesa na poslovni uspeh preduzeća
Authors: Cvetković Kristina , Jovović Marina
Published: January 2022

Usavršavanje poslovnog procesa predstavlja organizacionu promenu koja glorifikuje uspeh u preduzeću. U današnjem neizvesnom poslovanju, polazna tačka ka uspehu jeste sprovedena odluka o usavršavanju poslovnih procesa u preduzeću. Implementacijom usavršenih poslovnih procesa poslovni uspeh se multiplicira i evidentira. Organizaciona promena kroz iskorišćavanje unapređenih poslovnih procesa kao sto su: korišćenje nusproizvoda, reinžinjeringa, novih tehničkih rešenja, robotizacije i drugih, rezultira reduciranim cenama, boljim proizvodima, adekvatnijom analizom i poboljšanim poslovnim uspehom. Sinergija implementiranih organizacionih promena u poslovanju rezultira u efikasnost, profitabilnost i trajanje poslovanja. Dobijeni rezultati istraživanja potvrđuju da inoviranje poslovanja relultira u poboljšano poslovanje preduzeća.
Utjecaj društvenih mreža na odabir turističke destinacije: primjer destinacija Kvarner
Authors: Alkier Romina , Perić Goran
Published: January 2022

Rad sintetizira dosadašnja istraživanja i rezultate provedenog istraživanja na konkretnom primjeru – turističkoj destinaciji Kvarnera. Društvene mreže su postale važan alat u izgradnji imidža turističke destinacije i prepoznatljivosti na turističkom tržištu. Stvaranjem zanimljivih sadržaja na društvenim mrežama može se utjecati na privlačenje potencijalnih turista u destinaciju, kao i dijeljenjem sadržaja i vizualnih materijala korisnika društvenih mreža koji su već posjetili destinaciju. Stoga se u radu propituje u kojoj mjeri posjetitelji turističke destinacije Kvarnera koriste društvene mreže kao izvor informacija i koliko one utječu na odabir turističke destinacije Kvarnera kao njihove odredišne destinacije. Rezultati istraživanja pokazuju da društvene mreže značajno utječu na odluku turista o odabiru turističke destinacije Kvarnera kao destinacije odmora, ali u manjoj mjeri nego na odluke turista koji posjećuju druge primorske regionalne destinacije. Stoga su potrebni dodatni napori kako bi se popularizirale stranice na Facebooku i Instagramu među potencijalnim turistima.
Influence of interest rates on equality of income distribution
Authors: Paunović Miloš
Published: January 2022

Taking into account the fact that the total world debt (public and private) is about 300 trillion dollars, which represents one third of the annual world gross domestic product and the fact that it has been growing continuously for the last few decades, interest rates as a relatively variable and interest as an absolute variable are make elements that significantly affect economic and social developments. The subject of research in this paper is to examine the impact that interest and interest rates have on the (in)equality of income distribution (which is expressed by the Gini coefficient), and thus on the (in)equality of the distribution of total wealth. The conducted analyzes of empirical data, which refer to the member countries of the Organization for Economic Co-operation and Development (OECD), came to the conclusion that the growth of interest rates causes the growth of income inequality.
Mind mapping as a new method that supports readiness for primary school
Authors: Polat Özgül , Atış-Akyol Nevra
Published: January 2022

In the changing and developing world, the methods and approaches which promote learning experiences of individuals develop at the same pace. If such methods are integrated into the education system as an alternative to traditional teaching methods, it will enrich the learning experience for children and provide teachers with an opportunity to reach more children. As part of this, the research aims to use the mind mapping method to develop school readiness skills of preschoolers. This study was designed with a quantitative research procedure and was planned using a quasi-experimental design. The working group for the study was made up of 44 children, of which, 21 belong to the experimental group and 23 the control group. For the first step of the study, teachers were given mind mapping training and later the children in the experimental group were subjected to mind mapping applications in 22 themes (school, numbers, shapes, our healty, cooperation, emotions, nature…), comprising 7 large group and 15 individual mind mapping applications. The mind map theme of the week was covered every day in that week's program. As a result of the study, a significant difference in scores for school readiness skills between the experimental and control groups was revealed for all sub-dimensions in favour of the experimental group. The study indicates that the mind mapping technique applied with the children in the experimental group supports their readiness for primary school considerably.
An investigation of the relationship between the narcissism levels and self-sabotage levels of university students
Authors: Celik Merve , Kanak Mehmet
Published: January 2022

The purpose of the present research is to determine the university students' levels and tendencies of narcissism, which is the subject of the research conducted in many different fields, to reveal its relationship with self-sabotage, which has been studied in recent years in Turkey, especially in the field of educational sciences, more specifically in the field of psychological counselling and guidance, and to discuss it according to various variables. The study group consists of 580 students who continue their education in different faculties and colleges in a university of a middle-sized province Central Campus in the 2018-2019 academic year. The researchers used the simple random sampling method in determining the study group. Measurement tools used in the research are the Narcissistic Personality Inventory, the Self-Sabotage Scale and the Demographic Information Form. To assess the relationship between the variables, independent samples t-test, one-way variance analysis (One Way ANOVA), Post Hoc tests, Levene homogeneity of variance test, regression analysis and Pearson correlation coefficient were used. The results of the study revealed that the narcissistic personality scores differed depending on the faculties in which the students were studying and the gender of the students. The results indicated no other differences in terms of other variables.
Fine arts creative skills of elementary school students: An analytical demonstration of the role of stratum
Authors: Cetl Sara , Herzog Jerneja
Published: January 2022

The following article presents the results of research whose purpose was the analysis of the level of artistic creativity and fine arts development among eighth-grade students of different elementary schools in the northeastern part of Slovenia. We have monitored the level of artistic creativity and analysed the differences in fine arts creative skills from the viewpoint of six factors of artistic creativity: originality, flexibility, fluency, redefinition, elaboration and sensibility for artistic problems. Consistent with these factors, our focus was on the differences in the stratum, as we have noticed a lack of research analysing creative abilities from the point of view of the students' environment. Thus, the research aimed to shed light upon the impact of quality art educational work on the development of fine arts creative skills and creativity, especially among students of higher age. In doing so, the fact about the environment students come from was disregarded. The results of the research show discrepancies with previous research, as we found statistically significant differences in the factors of art elaboration, sensibility for artistic problems and fluency, with the suburban students being more successful. For this reason, there are further tendencies to carry out an in-depth analysis of this indicator in the mentioned age group.
The beliefs of preschool teachers on self-regulated learning in the preschool
Authors: Gomerčić Ljiljana
Published: January 2022

This paper presents a qualitative research which implements the Delphi method on a sample size of 25 preschool teachers and their assistants in Slovenian preschools regarding their beliefs on self-regulated learning in the preschool. The goal was to determine how preschool teachers and their assistants define their own self-regulated learning, which factors they recognize as important in the children's self-regulated learning in the preschool and how they assess the role of the preschool teacher in the process of enhancing self-regulated learning of children in the preschool. The research was conducted in two rounds using two questionnaires. The first round of research was done using an open ended questionnaire, the answers were coded and the relevant concepts were categorized. On the basis of the result analysis from the first round of the research the questionnaire for the second round was made, which enabled the analysis and comparison of the data from both rounds of research. From the analysis of the gathered data, most preschool teachers (72%) believe that for the development of self-regulated learning it is important for the children to learn by watching others and through real-life examples. Slightly more than half of the preschool teachers (52%) say that it is independent participation of the child, (48%) believe that incentive is important, and (36%) believe that guidance is key. Others (28%) mention observation and dialogue as an important approach for the development of self-regulated learning, (12%) believe that it is persistence. Challenges and attention from the preschool teacher were noted by (8%) of the preschool teachers while (4%) believe that the adequate environment and interesting topics were an important approach.
GC/MS analysis and antimicrobial activity of essential oils of Telekia speciosa (Schreb.) Baumg
Authors: Čilović-Kozarević Ermina , Šarić-Kundalić Broza , Ibišević Merima , Horozić Emir , Glamočlija Jasmina , Soković Marina , Arsenijević Jelena , Maksimović Zoran
Published: January 2022

Telekia speciosa (Schreb.) Baumg., Asteraceae, is widespread in Eastern and Central Europe and the Balkan Peninsula. Previous phytochemical investigations have revealed T. speciosa as a rich source of sesquiterpene lactone -isoalantolactone, especially in its underground parts. The aim of the present study was to analyze the essential oils from aerial and underground parts of T. speciosa and investigate their antimicrobial activity. Chemical composition of essential oils was determined by GC-FID/MS method leading to the identification of 67 compounds in total, with 15.77 % oxygenated monoterpenes, 7.77 % sesquiterpene hydrocarbons, 49.14 % oxygenated sesquiterpenes, and 12.37 % other compounds from aerial parts, and 3.80 % oxygenated monoterpenes, 3.13 % sesquiterpene hydrocarbons, 90.33 % oxygenated sesquiterpenes from underground parts essential oil. The main components from aerial parts were (E)-nerolidol (11.54 %) and caryophyllene oxide (10.54 %), while isoalantolactone was the predominant component from essential oil underground parts (83.41 %). The minimum inhibitory concentration (MIC), minimum bactericidal/fungicidal concentration of the essential oils were evaluated against six strains of bacteria and two strains of fungus using in vitro microdilution method. Both oils presented antimicrobial properties against pathogens Staphylococcus aureus, Bacilus cereus, Pseudomonas aeruginosa, Escherichia coli, and Candida albicans. Inhibition of growth of tested microorganisms by T. speciosa underground parts essential oil was achieved with MICs ranging from 1.0 to 11.0 mg mL -1 , while MICs of aerial parts essential oil varied from 4.0 to 30.0 mg mL -1 . The obtained results contribute to the knowledge of antimicrobial properties of T. speciosa, which support traditional uses underground parts of the plant.
Effect of carrier type on the spray-dried willowherb (Epilobium angustifolium L.) leaves extract, powder properties and bioactive compounds encapsulation
Authors: Jovanović Miloš , Drinić Zorica , Bigović Dubravka , Zdunić Gordana , Mudrić Jelena , Šavikin Katarina
Published: January 2022

Willowherb (Epilobium angustifolium L.) leaves are a valuable source of polyphenolic compounds (phenolic acids, flavonoids, and ellagitannins) that are mainly used in the treatment of benign prostatic hyperplasia. In the presented study, the impacts of maltodextrin and whey protein as carriers on the efficiency of spray drying and physicochemical properties of the obtained powders were examined. The use of carriers significantly improved the drying yield (over 60 %). Moisture content, hygroscopicity, and rehydration time of all dried extracts (without the carrier, with maltodextrin and whey protein) were at an acceptable level, while their flowability and cohesiveness were poor. The encapsulation efficiency of polyphenols in a whey protein carrier of 92.02 % was significantly higher compared to 75.80 % for maltodextrin. These results show that whey protein efficiently encloses the extract ingredients into powder particles and thus preserves sensitive phenolic compounds during the drying process. The efficacy of flavonoid encapsulation was also high (93.00 % for maltodextrin and 94.34 % for whey protein), with no statistically significant differences between carrier types. Therefore, willowherb leaves extract can be successfully encapsulated by spray drying using maltodextrin and whey protein as carriers.
High doses of Uvaria chamae root extract impair sperm motility and viability
Authors: Ujah Godwin , Busayo Emmanuel , Emeng Bassey , Kalu Patience
Published: January 2022

Uvaria chamae is a tropical medicinal plant with documented antimicrobial and antimalarial activities. Agents with these activities are known to impair fertility. This study investigated the antifertility effects of ethanolic extract of U. chamae on male albino Wistar rats. Two different oral doses; 56.6 mg/kg body weight and 113.2 mg/kg body weight of the extracts were administered to low dose and high dose group, respectively. A third group served as control and received 2 mL of distilled water. There were five animals in each group. Administration lasted six weeks after which animals were sacrificed and samples collected. Results showed that sperm count, sperm morphology and semen pH were not affected (P>0.05) by the extract. Sperm motility (55.65 %) and viability (64.38 %) were however decreased (P<0.05) by high doses of the extract. Histopathology of testicular tissues also showed no difference across the groups. U. chamae thus impair fertility in vivo especially at high doses.
Enzyme inhibitors as controllers of neurodegenerative diseases: An update of in vitro effects of medicinal plants
Authors: Aradski-Alimpić Ana , Oalđe-Pavlović Mariana , Janković Smiljana , Marin Petar , Duletić-Laušević Sonja
Published: January 2022

Considering the increase of the elderly population in recent years, the growing prevalence of age-related neurodegenerative diseases (NDDs), including Alzheimer's disease (AD) and Parkinson's disease (PD), has become one of the leading healthcare problems. Currently, available therapies for AD and PD are still limited, while medicinal plants used in traditional medicine for millennia can inhibit enzymes involved in the neurodegeneration processes in AD (acetylcholinesterase, AChE, and butyrylcholinesterase, BChE) and PD (tyrosinase, TYR), hence their inhibiting effects are continuously being investigated especially in the past decade. This study was aimed to review data on medicinal plants as potential cholinesterases and TYR inhibitors reported from January 2018 until May 2021. The literature search was performed using several online bibliographical databases (Scopus, Web of Science, Science Direct, Google Scholar, PubMed, and ResearchGate) and two websites. Data analysis showed that the highest number of representatives belongs to Lamiaceae family (up to 20 %), followed by Asteraceae. Almost half of the tested samples were prepared from whole plant/aerial plant parts followed by leaves. The most frequently tested preparations were methanolic extracts (about 25 % of the samples examined). Additionally, synergistic interactions between different herbs and/or isolated compounds were considered as a promising strategy for further research. The presented data showed that medicinal plants preparations represent an unlimited source for research of new and more effective AD and PD treatments. This review will provide a useful starting point for further research on this topic.
Frequency of skeletal anomalies in fetal and neonatal autopsies
Authors: Radojević Matija , Pjevčević Katarina , Putniković Dunja , Jevtić Jovan , Simić Ljubica
Published: January 2022

Introduction: Skeletal anomalies are a heterogeneous group of disorders including changes in bone shape, size, and density that cause abnormalities of the extremities, trunk, and head. They rank second in Europe in the frequency of all congenital anomalies. The most common skeletal anomalies include head, face and limb anomalies. Aim: The aim of this study was to determine the frequency of skeletal anomalies and their association with anomalies of internal organs, as well as to show the age of the mother and the gestational week of the fetus with established skeletal anomalies. Material and methods: All fetal and neonatal autopsies in the period from January 1, 2018 to December 31, 2020 at the Institute of Pathology "Djordje Joannovic" of the Faculty of Medicine University of Belgrade were analyzed. In the mentioned period, 580 fetal and neonatal autopsies were performed. Clinical data were obtained from the Gynecology and Obstetrics Clinic "Narodni Front" on the basis of completed requests for clinical autopsy. Descriptive statistics methods were used (data are presented as absolute numbers and percentage frequencies). Results: The most common skeletal anomalies are divided into seven groups: spina bifida (20; 33.34%), limb anomalies (16; 26.67%), head and face bone anomalies (15; 25%), joint anomalies (2; 3.33%), achondroplasia (3; 5%), osteogenesis imperfecta (2; 3.33%) and other anomalies (2; 3.33%). The most common associated anomalies were central nervous system (CNS) abnormalities, followed by heart and kidney abnormalities. The youngest mother was 15 years old, and the oldest was 47 years old. The mean age of the mothers was 30 years. Conclusion: In our study, the most common anomaly was spina bifida, while limb anomalies and craniofacial anomalies are next in frequency. Skeletal anomalies were often associated with anomalies of the heart, kidneys, and CNS. They were mostly diagnosed between the 22nd and 27th gestational week. Our results showed that skeletal anomalies are more common in fetuses or neonates of mothers older than 30 years.
Light chain amiloydosis: Clinical, laboratory characteristics and treatment approach
Authors: Stanković Ana , Lazarević Milana , Srdić Sara , Sretenović Aleksandra
Published: January 2022

Introduction: Light chain amyloidosis (AL) is a plasma cell neoplasia characterized by deposition of a pathological insoluble fibrillary protein, i.e. light chain immunoglobulin. Aim: To show clinical and laboratory characteristics of patients, course, treatment modalities, prognosis etc. Material and methods: A number of 30 newly diagnosed patients with AL amyloidosis were analyzed. Histopathological diagnosis was made by identifying Congo red positive deposits in the affected organs. Results: A number of 30 patients(pts) was analyzed, 21 male / 9 female, with average age of 59 years. Paraprotein was found in 26 (86.7%). The most frequent monoclonal protein was immunoglobulin light chain (14pts, 46.7%), Lambda isotope was more common (21pts, 70%). Organ involvement: heart (21pts, 70%), kidney (21pts, 70%), sub cutis (18pts, 60%), bone marrow (12pts, 40%), liver (7pts, 23.3%) and 9pts(30%) had unusual localization (lung, skin, uterus); 18pts (60%) had more than one parenchymal organ involved. Biomarkers of cardiac involvement: BNP in 8pts (26.7%), NTproBNP in 13pts (43.3%), and troponin 7pts (23.3). Elevation of LDH was found in 7pts (23.3%). Anemia was observed in 3 (10%) and thrombocytopenia in 1 pts (3.3%). With conventional chemotherapy 21pts(70%) were treated, bortezomib was applied in 9pts (30%). With ASCT was performed on 2pts (6.7%). Overall treatment response (ORR, ≥PR) was achieved in 21pts (70%). All pts treated with bortezomib based HT had treatment response (≥PR). In transplant ineligible patients, treatment modality did not affect PFS (Log Rank = 1.675, p = 0.196), but showed statistically significant effect on OS (Log Rank = 3.834, p = 0.05). Number of parenchymal organ involvement (1 vs. ≥ 2) did not show influence neither of PFS or OS (PFS: Log Rank = 0.017, p = 0.895; OS: Log Rank = 0.739, p = 0.390). Although the most important negative prognostic factor, cardiac involvement had no effect on OS (Log Rank = 2.480, p = 1.410). Conclusion: Heart involvement indicated a worse prognosis for patients. Bortezomib based protocols and HDT with ASCT are essential for maintaining long-term remission and improving OS.
The effect of genotype and growing seasons on yield and quality of oats on pseudogley soil
Authors: Rajičić Vera , Terzić Dragan , Popović Vera , Babić Violeta , Đokić Dragoslav , Đurić Nenad , Branković Snežana
Published: January 2022

Oat is widely grown in Western Serbia and compared to other cereal crops is reputed to be better suited for production under marginal environments, including low fertility soils and cool wet climates. To determine the effect of cultivar and growing seasons on the yield and components of the oats yield two varieties were examined during three years, in the field experiment of the secondary agricultural-chemical school "Dr Đorđe Radić" in Kraljevo. Trials were arranged according to a randomized scheme in five replications. The following oat traits were analyzed: grain yield, 1000-kernel weight, test weight and plant height. The experiment was performed on extremely acidic pseudogley soil. The obtained results show a high effect of the years on grain yield and certain parameters of its quality. On average, the highest yield of oats 2 .879 t ha-1 was obtained in the variety Vranac. The results of these studies indicate a significant impact of the growing season on grain yield and quality of oats, grown on poor soils of the pseudogley type, which is often present in Western Serbia. Grain yield shows a tendency to increase in years with a higher total amount and better distribution of precipitation during the critical stages of oat plant development.
Influence of genotypes and environment on eggplant yield
Authors: Damnjanović Jelena , Pavlović Suzana , Girek Zdenka , Savić Slađana , Ugrinović Milan , Brdar-Jokanović Milka , Pavlović Nenad
Published: January 2022

One of the goals in eggplant breeding (Solanum melongena L .) is higher yield, as well as adaptation to different environments. Our study included 20 different eggplant genotypes. The experiment was conducted at three different locations (Smederevska Palanka, Vranovo and Kusadak) using a randomized complete block design in three replications. The influence of two factors on yield per plant was examined: genotype and location. Two-factor ANOVA showed a significant influence of genotype, location as well as genotype x location interaction on yield per plant . After the analysis of 20 genotypes at three different locations, the recorded average yield per plant was 2 .47 kg. Significantly higher yields per plant than the general average were recorded for genotypes K13 (3 .02 kg), K20 (2 .99 kg), K21 (3 .44 kg), K34 (4 .35 kg), K39 (4 .28 kg). The hig-hest yield had the genotype K34 at the location Vranovo (4 .71 kg). At the locatio of Smederevska Palanka, genotype K39 had the highest average value, while genotype K1 (1 .09 kg) had the lowest yield below the general average. Genotype K39 had a significantly higher yield per plant above the average value at the Kusadak site. Based on the results of AMMI analysis, it can be concluded that there are significant differences between locations, genotypes as well as interactions (Table 3). Of the total sum of squares, 86 .10% refers to the effect of genotype, while the sum of squares of genotype × location is three times higher than the sum of squares of location (10 .25% compared to 3 .07%). The most stable location based on the AMMI stability coefficient (0 .92) was Smede-revska Palanka, while the least stable was Kusadak (2 .34). Genotypes K13, K39, K36, with a yield above the general average, had a low value of PC1, which indicates that they were less influenced by locations, ie. that they had good yield stability in all locations . Genotype K34 stood out as the most productive genotype. Genotypes K3, K7, K16, K19 and K38 were below the average yield value but proved to be stable . The strongest interaction (ASV) was observed in genotypes K1 (below average yield) and K21, K25 (above average yield), where the last two are closely adapted to the location Kusadak.