bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparative Study of the Bacteriological Activity of Zinc Oxide and Copper Oxide Nanoparticles
Authors: Merah Abdelali , Abidi Abdenabi , Merad Hana , Gherraf Noureddine , Iezid Mostepha , Djahoudi Abdelghani 
Published: May 2019

Abstract
Interest in nanomaterials, especially metal oxides, in the fight against resistant and constantly changing bacterial strains, is more and more expressed. Their very high reactivity, resulting from their large surface area, promoted them to the rank of potential successors of antibiotics.
Our work consisted of the synthesis of zinc oxide (ZnO) and copper oxide (CuO) in the nanoparticle state and the study of their bactericidal effect on various Gram-negative and Gram-positive bacterial strains.
The nanoparticles of metal oxides have been synthesized by sol-gel method. Qualitative analysis and characterization by UV / Visible and infrared spectrophotometry and X-ray diffraction confirmed that the synthetic products are crystalline. The application of the Scherrer equation allows to determine the size of the two metal oxides, namely: 76.94 nm for ZnO and 24.86 nm for CuO.
The bactericidal effect of ZnO and CuO nanoparticles was tested on Gram-positive bacteria (Staphylococcus aureus, Staphylococcus hominis, Staphylococcus haemolyticus, Enterococcus facials) and Gram-negative bacteria (Escherichia coli, Schigella, Klepsiella pneumoniae and Pseudomonas aeruginosa). The results indicate that the tested metal oxides nanoparticles have an effect that varies depending on bacterial species. Indeed, Gram-positive bacteria show greater sensitivity to ZnO nanoparticles whereas Gram-negative bacteria are more sensitive to CuO nanoparticles.
Optimization of the extraction parameters of Aloe Vera polyphenols and study of antioxidant and antifungal activities: application to molds isolated from durum wheat
Authors: Laib Imen , Boubrik Fairouz , Barkat Malika 
Published: May 2019

Abstract
The main objectives of this work are to optimize the extraction parameters, to test the antioxidant activity of Aloe Vera extract and to study the impact of this extract on deteriorating molds of Algerian variety of wheat (CIRTA). The extraction was optimized by central composite design. Determination of the polyphenols, flavonoids, and proanthocyanidins was performed by using colorimetric assays. Identification and quantification of phenolic compounds were performed by RPHPLC-UV method. The antioxidant activity was tested by three methods: 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,20-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS), and CUPRAC (Cupric reducing antioxidant capacity), the antifungal activity of Aloe Vera extract on isolated strains from durum wheat were tested by dilution in a solid medium method. The optimum of total phenolic got was1,044 x 104 µg GAE/g of dry extract. The extract is rich in polyphenols, flavonoids, and proanthocyanidins. The analysis of phenolic compounds of Aloe Vera by RP-HPLC-UV revealed seven phenolic compounds. Strong antioxidant activity was obtained for Aloe Vera extract. Purification and microscopic study of isolated strains gave the possibility of identifying four strains: Alternaria spp1, Alternaria spp2, Penicillium spp, and Aspergillus spp. the antifungal potential of Aloe Veravaries according to the fungal genera and the concentrations of extract used.
Analysis of Factors Affecting Thermal Comfort Properties of Woven Compression Bandages
Authors: Aboalasaad Abdelhamid R.R. , Skenderi Z. , Brigita Kolčavová S. , Khalil Amany A.S. 
Published: May 2019

AbstractCompression bandage (CB) as a porous material should provide both graduated pressure and thermal comfort properties to enable air permeability, heat transfer, and liquid perspiration out of the human body. The main factors affecting thermal comfort properties are the temperature difference between environment and skin, yarns’ structure and material, fabric thickness, porosity, areal density, number of fabric layers, trapped air, and fabric structure. Thermal resistance (Rct) and water vapor resistance (Ret) are evaluated for four types of woven CBs. All bandage types were applied at the range of extension (10–80%) using both two- and three-layer bandaging on thermal foot model (TFM). Rctvalues are compared with measured results by the Alambeta instrument, whereas Rettest is performed on the Permetest device. Thermal resistance is significantly decreased when increasing the bandage extension from 10 to 40%, then it is slightly increased by increasing the extension from 40 to 60%, after that it is decreased especially at 80% extension due to lower bandage thickness and higher compression.
Philosophical Comparativism About Search of Common Ways of Ecological Problems Based on the Dialogue of Cultural Matrices of the East and West
Authors: Tarasenko Galyna , Nesterovych Bohdan 
Published: May 2019

Abstract
The article talks about a common searching by the Western and Eastern countries the ways of solving environmental problems of humanity based on the improving the worldview reflections. The authors propose the dialogue of cultures as a methodological key solution to these problems. In the context of comparative analysis the authors characterize the ecologism of tao-Buddhistic traditions and values of the Oriental attitude, that have a great influence on Western civilization. The environmental philosophy of attitude towards nature is offered in the article as a common product of dialogue of cultures. The authors also present the experience of using the Eastern philosophical concepts of attitude towards nature in Ukraine.
Application of semi-deviation as a proxy for the expected return estimation in the Croatian equity market
Authors: Dolinar Denis , Zoričić Davor , Golubić Zrinka Lovretin 
Published: May 2019

Abstract
In the field of portfolio management the focus has been on the out-of-sample estimation of the covariance matrix mainly because the estimation of expected return is much more challenging. However, recent research efforts have not only tried to improve the estimation of risk parameters by expanding the analysis beyond the mean-variance setting but also by testing whether risk measures can be used as proxies for the expected return in the stock market. In this research, we test the standard deviation (measure of total volatility) and the semi-deviation (measure of downside risk) as proxies for the expected market return in the illiquid and undeveloped Croatian stock market in the period from January 2005 until November 2017. In such an environment, the application of the proposed methodology yielded poor results, which helps explain the failure of the out-of-sample estimation of the maximum Sharpe ratio portfolio in earlier research in the Croatian equity market.
Demographic response of the Gambian Gerbil to seasonal changes in Savannah fallow fields
Authors: Rabiu Safianu , Rose Robert K. 
Published: May 2019

Abstract
The Savannah gerbil, Gerbilliscus gambianus (Muridae: Gerbillinae) is important to the ecological relations of the dry grassland ecosystem of West Africa, as well as, being a zoonotic agent of human diseases and potential crop pest. We examined the impact of seasonal changes on the population dynamics of G. gambianus in northern Nigeria, by completing population estimates using capture–mark–recapture (CMR) and indirect population density indices (PDI) methods. The latter included fecal pellet counts and limited spotlightening. During 1990–1992 we collected both CMR and PDI data, and established their relationship by regression, thus calibrating the PDI values to CMR estimator. We also completed a separate, PDI only, study during 2015–2017, and estimated monthly densities indirectly by toning the PDI values to population sizes in the CMR estimator. The lowest declines (<20 gerbils ha−1) were in mid rains (July–August), and highest increases (>90 gerbils ha−1) were after the rains (October–January). Seasonal effects on densities were significant during 1990–1992 but not during 2015–2017. There were improved survival rates for both adults (0.95) and young (0.83), adult capture probability (0.56), and mean monthly recruitment of young (23) after the rains. There was no significant change in the overall population dynamic pattern of G. gambianus over a 25-year period. Because G. gambianus did not maintain colonies inside farmlands cultivated by rain or irrigation, and its tendency for large population drops in mid-rains, we are in doubt of its potential as crop pest in northern Nigeria.
Habitat-related specifity of iPBS fingerprint in European populations of Hedera helix L.
Authors: Žiarovská Jana , Ražná Katarína , Fernandéz Eloy C. , Bošeľová Danka , Kyseľ Matúš 
Published: May 2019

Abstract
Inter primer binding site (iPBS) polymorphism was investigated for common ivy (Hedera helix, L.) to obtain the knowledge on genetic diversity in this species. Actually, a very limited information exists about application of DNA markers in Hedera helix. Natural and planted European populations of ivy were analysed using an iPBS marker 5′ACCTGGCGTGCCA3′ with a total number of 238 fragments generated. Of these, 86% were polymorphic. There were determined certain attributes of this marker such as the diversity index (DI) and polymorphism information content (PIC). The value of the diversity index was 0.79 and the polymorphic information index was 0.78. The proportion of polymorphisms of the individual amplified loci ranged from 0.32% to 6.98%. Cluster analysis was performed to determine the relationships among the European ivy populations where the distribution in the dendrogram under the habitat specifity was found for the used iPBS marker. We concluded that iPBS was very efficient in analysing the genetic diversity in Hedera helix, L. and that this marker can serve as a suitable tool to find genomically specific fingerprints relevant to the factors influencing the distribution of genetic variation.
Mediating in intercultural communicative challenges issued in the language classroom: a new objective in training programs for new teachers
Authors: Sanchez-Sanchez Gabriel , Krawiec Marek 
Published: May 2019

Abstract
The Faculty of Education Universidad de Murcia (Spain) offers a four-year degree programme in primary education, where modules and subjects related to the foreign language (English) are taught in the first, third and fourth years (OJE 2010). The current teacher training programmes should take into account the most recent political events in Europe so that they can be adjusted to suit the Council of Europe’s original linguistic and cultural education policy. This article will explore intrinsic aspects of foreign language and culture teaching, and the learning process, in relation to communication and understanding among all European citizens. This analysis will help to identify the implications of 21st-century education policy in terms of the skills of newly-qualified teachers.
Influence of Bi on dielectric properties of GaAs1−xBix alloys
Authors: Ulutas K. , Yakut S. , Bozoglu D. , Deger D. , Arslan M. , Erol A. 
Published: May 2019

Abstract
Pure GaAs and GaAs1−xBix alloys with different Bi ratios (1 %, 2.5 %, 3.5 %) fitted with silver contacts were measured with a dielectric spectroscopy device. Dielectric characterization was performed at room temperature in the frequency range of 0.1 Hz to 1 MHz. GaAs exhibits three relaxation regions corresponding to space-charge, dipolar and ionic polarizations in sequence with increasing frequency while GaAs1−xBix samples show only a broad dipolar polarization in the same frequency range. This result proves the filling of the lattice with Bi through making a new bonding reducing the influence of ionic polarization. This finding supports the previous results concerning optical properties of GaAs1−xBix, presented in the literature.
Tutoring as a method of creative development of a gifted child
Authors: Tarasenko Galyna , Nesterowycz Bohdan 
Published: May 2019

Abstract
The study includes the possibility of extending tutoring over gifted children at a younger school age. Ability is defined as a complex of innate predispositions and abilities that in favorable conditions enable the student to achieve significant successes in a certain type of activity. In this sense, the creation of educators fosters the gifting of life and educational space. The authors present an aesthetic approach to realizing the specific educational needs of a talented child who has been developing dynamically in Ukraine in recent decades. Ability is treated as a phenomenon of achieving a special level of development of mental and emotional processes, manifesting itself especially in the child’s movement, sensory, perceptual responses to the surrounding world.
Tutor in the work with gifted children should be a coordinator of development of his abilities, moderator of creative situations. It must also give the child an individual development trajectory. Tutor’s task is to lead a talented child into a „field of creative achievements”, where he will have the opportunity to perceive the ideal cultural patterns of relation to the world and to carry out his own creative attempts based on personal impressions and fascinations.
An algorithm for individual tutoring has been proposed, which aims to provide a child capable aesthetic and educational environment based on creative correlation with nature. Examples of how the tutor organized the linguistic creativity of a talented child during the minutes of admiring nature.
I’m looking for a teacher and a master... – tutoring in the face of contemporary culture challenges
Authors: Dryglas-Komorowska Ewa 
Published: May 2019

Abstract
The article shows the actuality of Tadeusz Różewicz’s poetic confession: “I’m looking for a teacher and a master” in the postmodern world, dominated by mass media and multimedia, the world not guided by authorities. A young man is surrounded by chaos of mass culture, popular culture and cyberculture and he needs a tutor – master, he needs a tutor – guide, who will carry him through the world of cultural values specific for 21st century, emphasizing educational chances and dangers. The tutor should also inform his pupil about the importance of tradition for shaping one’s personality. From this perspective the tutoring is one of the most important challenge standing before the contemporary cultural education.
School as an environment for the development of students’ abilities and talents – towards the pedagogy of creativity
Authors: Czerwonka Dagna 
Published: May 2019

Abstract
The dynamic development of our reality as well as continuous social, political and economic make the changes to be made in thinking about any purpose and tasks of education. Many educators believe that one of the major challenges of the school is to prepare young people to be active, creative participation in the civilization. Therefore, raises many questions: whether the school stimulates the creative abilities of students?, What barriers stand in the way of promotion of creative activity in the school environment? With these questions the author to try to deal in this article.
KEEFEKTIFAN MODEL PEMBELAJARAN BERBASIS PROYEK (PROJECT BASED LEARNING) TERHADAP KOMUNIKASI MATEMATIS DAN PRESTASI BELAJAR MATEMATIKA
Authors: Mulyawati Siti , Suwandono Suwandono , Rohman Muhammad saefur 
Published: May 2019

Peserta didik kelas VIII SMP Negeri 1 Talang masih banyak mengalami kesulitan dalam memahami matematika karena dianggap pelajaran yang menakutkan. Berkaitan hal ini perlu adanya variasi model pembelajaran yang menyanangkan. Upaya yang dapat digunakan adalah penerapan model pembelajaran berbasis proyek (project based learning) untuk meningkatkan komunikasi matematis dan prestasi belajar matematika.Penelitian ini bertujuan : (1) membuktikan apakah ada perbedaan komunikasi matematis dan prestasi belajar matematikapeserta didik setelah diajar menggunakan model pembelajaran berbasis proyek (project based learning) dengan model pembelajaran ekspositori. (2) membuktikan keefektifan model pembelajaranberbasis proyek (project based learning) dibanding dengan model pembelajaran ekspositoriterhadap komunikasi matematis dan prestasi belajar matematika. Populasi dari penelitian ini adalah peserta didik kelas VIII SMP Negeri 1 Talang kabupaten Tegal. Jumlah populasi sebanyak 285 peserta didik. Sampel penelitian terdiri dari 161 peserta didik. Teknik pengambilan sampel dengan cara cluster random sampling. Teknik pengumpulan data menggunakan teknik dokumentasi dan teknik tes. Instrument penelitian yang digunakan adalah tes uraian untuk instrument tes komunikasi matematis dan tes pilihan ganda untuk instrumen tes prestasi belajar matematika. Teknik analisis data penelitian ini menggunakan uji multivariate analysis of variance (MANOVA) dan uji dengan taraf signifikansi 5%. Hasil penelitian menunjukkan bahwa : (1) terdapat perbedaan komunikasi matematis dan prestasi belajar matematikapeserta didik setelah diajar menggunakan model pembelajaran berbasis proyek (project based learning) dengan model pembelajaran ekspositori. (2) Penerapan model pembelajaranberbasis proyek (project based learning) lebih efektif dibanding dengan model pembelajaran ekspositoriterhadap komunikasi matematis dan prestasi belajar matematika.
“PRIMAVERA EM FIALTA”:
Authors: Schneider Graziela 
Published: May 2019

Ilustre desconhecido na América Latina como um todo e no Brasil em particular, os leitores não reconhecem o nome de Vladímir Nabókov[i] (1899-1977), a não ser quando se invoca Lolita (1955), e não sabem que muitos dos textos que leem foram escritos em russo.
Apesar de ter escrito em torno de 70 contos, figurar nas mais diversas antologias do gênero e inúmeros serem incluído nas bibliografias de disciplinas em universidades do mundo todo, há relativamente poucos estudos dedicados exclusivamente ao conto nabokoviano e a maioria de acesso mais restrito aos brasileiros.
“Primavera em Fialta” (1938) retrata descontinuidades, perdas e separações; os monólogos interiores e fluxos de consciência refletem a relatividade e a não linearidade espaço-temporal, a recorrência do tempo mitológico e cíclico, girando em torno de remissões, alusões e elisões. Segundo Barbara Heldt Monter (1970), o referido conto é a obra-prima do período russo de Nabókov; paradigmático, não apenas desse primeiro momento de sua vida literária, que é, de modo geral, desconhecida dos estudiosos e leitores brasileiros, mas também revela a poética da obra de Nabókov-Sírin como um todo. “Primavera em Fialta” é um recorte do conto nabokoviano por excelência e pode, portanto, ser entendido como metatexto nabokoviano.
“Primavera em Fialta” foi incluído na Nova antologia do conto russo, Editora 34 (2011). Além de ser a primeira tradução do russo de uma obra de Nabókov publicada no Brasil, é também a primeira vez que Nabókov figura em uma antologia brasileira de contos russos.

[i] Neste artigo, a grafia de Nabókov e Berbérova levará acento, salvo nas Referências Bibliográficas, referentes a textos não traduzidos no Brasil.
Meningkatkan Kesehatan Mental Penderita Diabetes Melitus di Komunitas dengan Kegiatan Kelompok Swabantu (Self Help Group)
Authors: Kusumastiwi Tesaviani , Suryani Lilis , P Denny Anggoro 
Published: May 2019

Diabetes melitus merupakan penyakit metabolik yang memiliki prevalensi yang cukup tinggi di Indonesia. Penanganan jangka panjang pada penyakit ini dapat memberikan beban baik fisik maupun mental pada penderitanya. Munculnya masalah kesehatan mental pada pasien diabetes melitus akan memperburuk prognosis pasien. Penanganan holistik baik fisik dan mental diharapkan dapat dilakukan pasien diabetes melitus, salah satunya melalui kelompok swabantu (self help group) yakni kelompok yang terdiri dari para penderita diabetes melitus yang saling berbagi permasalahan dan memberikan dukungan satu sama lain. Program pengabdian masyarakat kelompok swabantu penderita diabetes mellitus dilaksanakan di Desa Bogoran, Trirenggo, Bantul. Kegiatan swabantu berisi tentang sharing dari masing-masing penderita yang dipantau/dimonitor oleh dokter ahli jiwa. Pada kelompok swabantu di Desa Bogoran, Trirenggo, Bantul ditemukan komorbiditas gejala klinis depresi dan cemas pada penderita diabetes. Beberapa permasalahan yang dialami oleh para penderita adalah manajemen stres, gangguan tidur, kepatuhan minum obat, ketakutan akan komplikasi dan penyesuaian gaya hidup. Kegiatan kelompok swabantu selain dapat membantu para penderita diabetes dalam menangani permasalahan yang dihadapi terkait dengan diabetes melitus, juga dapat memberikan rasa kebersamaan dan saling menguatkan antar penderita diabetes.Kata kunci: diabetes melitus, kelompok swabantu, kesehatan mentalAbstractDiabetes mellitus is a metabolic disease that has a high prevalence in Indonesia. Long-term treatment of this disease can provide physical and mental burden on the sufferer. The emergence of mental health problems in patients with diabetes mellitus will worsen the patient's prognosis. Holistic handling both physically and mentally is expected to be carried out by patients with diabetes mellitus, one is through self-help groups (self-help group), which is a group consisting of people with diabetes mellitus who share problems and provide support for each other. The community service program for self-help groups with diabetes mellitus was carried out in Bogoran Village, Trirenggo, Bantul. Self-help activities are about sharing from each sufferer who is monitored by a psychiatrist. In the self-help group in the Bogoran Bantul area, comorbid clinical symptoms of depression and anxiety were found in diabetics. Some of the problems experienced by sufferers are stress management, sleep disorders, compliance with medication, fear of complications and lifestyle adjustments. Self-help group activities besides being able to help diabetics in dealing with problems faced with diabetes mellitus, they can also provide a sense of togetherness and mutual support among diabetics.