bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimization of Silver Nanoparticle Synthesis by Banana Peel Extract Using Statistical Experimental Design, and Testing of their Antibacterial and Antioxidant Properties
Authors: Rigopoulos Nickolas , Thomou Eleni , Kouloumpis Αntonios , Lamprou Eleni Rafaela , Petropoulea Varvara , Gournis Dimitrios , Poulios Efthymios , Karantonis Haralampos C. , Giaouris Efstathios 
Published: December 2018

Background:In this study, silver nanoparticles (AgNPs) were synthesized using Banana Peel Extract (BPE), and characterized using UV- Vis absorbance spectroscopy, X-Ray Powder Diffraction (XRD), Atomic Force Microscopy (AFM), and Fourier Transform Infrared Spectroscopy (FTIR). UV-Vis absorbance spectroscopy showed the characteristic plasmon resonance of AgNPs at 433 nm. The synthesized AgNPs were tested for their antibacterial and antioxidant properties.Methods:Nanoparticle size (between 5 and 9 nm) was measured using AFM, whereas their crystallinity was shown by XRD. FTIR identified the ligands that surround the nanoparticle surface. The synthesis conditions were optimised using Central Composite Design (CCD) under Response Surface Methodology (RSM). Silver nitrate (AgNO3) and BPE concentrations (0.25-2.25 mM, 0.2-1.96 % v/v respectively), incubation period (24-120 h) and pH level (2.3-10.1) were chosen as the four independent factors. The fitting parameters (i.e. the wavelength at peak maximum, the peak area, and the peak width) of a Voigt function of the UV- Vis spectra were chosen as the responses. The antibacterial properties of the AgNPs were tested against Escherichia coli and Staphylococcus aureus using the tube dilution test. The synthesized nanoparticles were tested for total phenolic composition (TPC) using the Folin - Ciocalteau method, whereas their radical scavenging activity using the 1,1-diphenyl-2- picrylhydrazyl (DPPH) free radical assay.Results:An optimum combination of all independent factors was identified (BPE concentration 1.7 % v/v, AgNO3 concentration 1.75 mM, incubation period 48 h, pH level 4.3), giving minimum peak wavelength and peak width. The nanoparticles inhibited the growth of E. coli, whereas S. aureus growth was not affected. However, no superiority of AgNPs compared to AgNO3 used for their fabrication (1.75 mM), with respect to antibacterial action, could be here demonstrated. AgNPs were found to present moderate antioxidant activity (44.71± 3.01%), as measured using DPPH assay, while the BPE (used for their fabrication) presented alone (100%) an antioxidant action equal to 86±1%, something expected due to its higher total phenolic content (TPC) compared to that of nanoparticles.Conclusion:Altogether, the results of this study highlight the potential of an eco-friendly method to synthesize nanoparticles and its promising optimization through statistical experimental design. Future research on the potential influence of other synthesis parameters on nanoparticles yield and properties could further promote their useful biological activities towards their successful application in the food industry and other settings.
Keberhasilan inseminasi buatan menggunakan semen sexing beku pada Sapi Persilangan Ongole
Authors: Setiyani Dwi Susan , Yekti Aulia Puspita Anugra , Kuswati Kuswati , Susilawati Trinil 
Published: December 2018

<p>The Artificial Insemination (AI) results in Beef cattle are expected to be male calf because they can increaseweight gain rapidly, so in this study AI was carried out by using sexing semen with Percoll density gradient centrifugation method containing Y sperm.This study was conducted to evaluate the success rate of AI using frozen sexing semen on Ongole Cross Breed. The study method used wasexperimental, comparing AI frozen sexing semen and frozen semen in 54 Ongole Cross Breed. The study variableswere Non Return Rate<sub>1</sub> (NRR<sub>1</sub>), Non Return Rate<sub>2</sub> (NRR<sub>2</sub>) and Conception Rate (CR).The study showed that the success rate of based on the value of NRR<sub>1</sub> and NRR<sub>2</sub>AI using frozen sexing semen on Ongole Cross Breed is lower than un sexed frozen semen with the NRR<sub>1</sub> value is 73,91%; 93,54% while the value of NRR<sub>2</sub> was 69,56%; 83,87%. Based on CR value of frozen sexing semen higher than un sexed frozen semen showed CR valuewas 43,47%; 35,48%.</p>
A construção de saberes e práticas em Psicologia no Centro de Referência Especializado de Assistência Social (CREAS) de Guapimirim, Rio de Janeiro
Authors: Luz Rafael Reis da 
Published: December 2018

O presente artigo tem como objetivo apresentar e discutir saberes e práticas em Psicologia na política de assistência social, em especial no Centro de Referência Especializado de Assistência Social (CREAS), equipamento da atenção especial de média complexidade. Tal proposta surge diante do estranhamento de certa Psicologia que, atrelada a um projeto de modernidade, constitui-se como um saber endurecido em sua forma identitária, não se sustentando no campo da assistência social. Para tanto, apoiamo-nos em legislações e resoluções da política de assistência social, em alguns aportes teóricos e realizamos uma breve exposição da experiência profissional no CREAS de Guapimirim, município do Estado do Rio de Janeiro. Apontamos, por fim, a necessidade de se pensar em uma clínica psicológica para além do sujeito. As diferentes atividades realizadas no CREAS podem ser pensadas como dispositivos geradores de efeitos clínicos, contribuindo, assim, para práticas em psicologia. Tais atividades podem ser também práticas psicológicas. Não obstante, reconhecer a amplitude de seu lugar é, talvez, o maior desafio da Psicologia na política de assistência social.
Percepção de mulheres sobre o parto e o papel da doula
Authors: Silva Lorena Carla Cardoso , Corrêa-Cunha Elza Francisca , Kappler Stella Rabello 
Published: December 2018

Os cuidados oferecidos pela doula, profissional que orienta e assiste a mulher na gestação, no parto e no pós-parto, são considerados como acolhedores e tendem a promover o bem-estar emocional da parturiente, auxiliando-a no enfrentamento das situações de desconforto. O objetivo dessa pesquisa foi analisar a percepção de mulheres sobre o parto e sobre a figura da doula no processo de parturição. Foram entrevistadas nove mulheres, com idades entre 19 a 35 anos, que tiveram uma gestação de baixo risco e que foram acompanhadas por doulas durante a gestação, parto e/ou no período pós-parto. Os relatos foram transcritos na íntegra e emergiram três categorias finais: Práticas Institucionais e Ambiência; Enfrentamento da Dor; e Presença da Doula e Importância da Equipe. Concluiu-se que a doula cumpre um papel importante ao proporcionar confiança e ao utilizar técnicas para o alívio da dor, entretanto, cabe ressaltar que apenas a sua presença não garante o respeito pelos direitos e individualidade das mulheres e um parto humanizado.
Kondisi Sosial Ekonomi Siswa Putus Sekolah
Authors: Sofya Rani , Siwi Menik Kurnia , Oknaryana Oknaryana 
Published: December 2018

The Competitiveness of Indonesian Humans according to Business World In 2018 it was ranked 45th out of 63 countries,and meaning that Indonesian lower than neighboring countries such as Malaysia. To improve competitiveness, education is needed for the people of Indonesia. Various policies have been implemented to increase education participation. In fact there are still students who drop out of school at all levels of education in Indonesia. The research was conducted to identify the characteristics of the socio-economic conditions of families dropping out of school in the city of Padang. The study was conducted by distributing questionnaires to 36 students who dropped out of school. Based on the data obtained it is known that students who drop out dominantly come from families with low and middle income economies. Parents of dominant students have primary and secondary education. The work of parents who drop out of school is mostly farmers, fishermen and laborers. Based on these results it is recommended that students and families shoul be have a strong commitment to the importance of education so that they can improve family conditions so that they can emerge from the vicious circle of poverty.
IMPLEMENTASI FLIP LEARNING STRATEGI MENINGKATKAN HIGHER ORDER THINKING MAHASISWA
Authors: Sofya Rani 
Published: December 2018

The Millennium Era gave birth to a generation called "digital native". Students in the millenial era in everyday familiar with the digital world. Educators must be creative in implementing learning for digital natives, so that learning activities do not become boring activities for them. One of the learning strategies that teachers can use is Flip Learning. Researchers collect some literature to formulate the steps of application Flip Learning. Flip learning has been applied to many countries and research results show that flip learning can increase student engagement, student motivation and student learning outcomes. The application of Flip learning is done with teachers providing material access through video, powerpoint, or digital books, or other resources to learn outside the classroom. In the classroom, students are actively involved in small group discussions as well as large groups and problem solving activities. Through students engagements in the learning process that requires them to construct their in-depth knowledge and it can improve their higher order thinking.
Effectiveness and performance of tax system in Slovak Republic in terms of its key non-macroeconomics factors
Authors: Dobrovič Ján , Rajnoha Rastislav , Korauš Antonín 
Published: December 2018

Research background: The paper addresses the issue of an optimal tax system and puts emphasis on two aspects: justice and efficiency. The issue of taxation has been the subject of numerous debates at the European level for several years. A good tax system should contribute to the state treasury with sufficient revenues, should not be an administrative burden, and must be sufficiently efficient and transparent.
Purpose of the article: The submitted article provides an extensive analysis of the opinions of respondents on the effectiveness of the financial administration of the Slovak Republic. The aim is to analyse the views and attitudes of the respondents on the key factors affecting the effectiveness of financial administration in terms of respondents' age, gender, occupation and place of residence using mathematical-statistical methods.
Methods: In the course of extensive empirical quantitative research (N = 1.500) were used Factor Model Analysis (Factor Analysis) and Analysis of Variance (Anova) were used. The data was obtained through a questionnaire survey, which-was carried out in four districts of Slovakia and focused on a wide range of respondents divided into four age-related categories.
Findings & Value added: In terms of research carried out, it is possible to conclude that there is dissatisfaction with the overall tax and customs system in the Slovak Republic. An analysis of respondents' views on the effectiveness of the tax system has shown that it is possible to identify several key factors that affect it, and they are: collection of levies and availability, competence of tax administration staff, computerisation of tax administration, tax collection efficiency, labour costs, and administrative difficulty of tax administration. in the paper, we also discuss these in more detail. The research results offer relevant and interesting implications for public authorities, policy makers and reformers as well as motives for further investigation of the tax administration issue.
Immigration from the CIS countries to Russia in the context of the economic crisis in the Russian Federation
Authors: Piekutowska Agnieszka , Fiedorczuk Monika 
Published: December 2018

Research background: A series of changes towards the greater openness to the influx of foreign labour force made in recent years in the Russian Federation prompts for analysis of immigration to this country as adopted solutions in the field of the migration policy affect other regions of destination (e.g. EU). Liberalisation of access of migrants to the Russian labour market is a part of a wider problem: competition (on an international scale) for an influx of foreign labour force. In this context, it is worth examining how the crisis which affected the Russian economy influenced the scale of immigration to Russia from the main sending countries, i.e. the countries of the Commonwealth of Independent States (CIS).
Purpose of the article: The aim of the article is to show the impact of the crisis which affected the Russian economy in recent years on the scale of immigration from the CIS countries to Russia. The main hypothesis is as follows: the factor explaining immigration from the CIS countries to Russia is the difference in the level of income measured by GDP per capita (PPP) between the sending state and the country of destination. Such studies have not been undertaken so far and, due to the role of factors inherent in the concept of post-imperial migration, it becomes relevant to examine whether the factors shaping migration (including the differences in the level of income) recognised in the neoclassical theory of migration are important in explaining the flows in this area.
Methods: In order to check the relationship between immigration and the economic crisis in Russia, the analysis of correlation and regression was used.
Findings & Value added: It has been shown that despite the decline in GDP in Russia, immigration from the CIS countries to Russia is not decreasing. Therefore, it is a dependence different from the assumptions of the neoclassical economy according to which the reduction of differences in the level of income between the sending state and the country of destination reduces the scale of international migrations. As it has been shown, the scale of migration to Russia may not be explained by the difference in the level of GDP per capita in all CIS countries and, inter alia, political factors, conflicts or naturalisation processes become more important in shaping the scale of migration to Russia.
Methodology for planning a successful store flyer campaign based on a case study from a Czech retail market
Authors: Kučerová Vladimíra , Zeman Jaroslav 
Published: December 2018

Research background: An essential part of marketing practice in contemporary food retail is the store flyer campaign, in which goods are offered at discounted prices. Even if it is not a new innovation in the field of sales promotion, its popularity does not decrease, and what?s more, in many countries it is still one of the most successful forms of promotion and communication with customers.
Purpose of the article: This article brings an answer to the question of how to plan a successful store flyer campaign. The goal is to design the process of planning such campaign based on the knowledge of price elasticity of demand. The rate of success is represented by the level of fulfillment of goals set by the merchant.
Methods: The area of the research is the Czech retail food market . The knowledge of the price elasticity of demand is based on the analysis of real terms of prices, sales volumes and margins, and the typology of goals we want to achieve. The proposed method of planning determines the evaluation rules for products in terms of their suitability for inclusion in a store flyer. The calculated values of price elasticity of demand and their changes during the time phases of the campaign are used as a knowledge base for a planning of consumers? responses to the store flyer. The principle of planning is demonstrated in a case study.
Findings & Value added: The practical output of the proposed process is the answer to the question of which goods should be included in the store flayer to achieve the goals set for the campaign. This study gives the method of identifying the groups of products which are suitable for inclusion in the store flyer and recommends the rules for the planning of the campaign.
Dampak Belanja Pemerintah Terhadap Konversi Hutan ke Pertanian di Indonesia
Authors: Puspitasari Widyaningsih Ratna 
Published: December 2018

This study analyzes the impacts of government spending on land use conversion from forest to agriculture based on national budget allocation in Indonesia. As agriculture expansion and the government spending on agriculture increase especially during this more than ten-year period, it is suspected that the conversion of land from forest to agriculture gradually increases. Therefore, the increase of government spending on agriculture may be one of the contributing factors to deforestation. Balanced panel data from 33 provinces in Indonesia that covers a ten-year period between 2006 and 2015 was used to examines the indirect effects of government spending on agriculture, total government spending over GRDP, and public spending on land use conversion. The generalized method of moment estimation (GMM) technique was applied in this research to investigate relationship between government spending and deforestation. The result showed that there is an indirect impact from increasing government spending: there is an increase in the total amount of land use conversion from forest to agriculture in Indonesia. This study depicts that an increase in government spending on agriculture and total government spending over GRDP have a significant positive impact on deforestation. Meanwhile, public spending has no significant effect on deforestation.
Keywords: Deforestation, GMM, government spending
Abstrak
Penelitian ini bertujuan untuk menganalisa dampak belanja pemerintah terhadap deforestasi, berdasarkan anggaran nasional belanja pemerintah di Indonesia. Meningkatnya perluasan lahan pertanian yang diikuti dengan peningkatan belanja pemerintah untuk sektor pertanian dalam kurun waktu lebih dari 10 tahun terakhir ini memungkinkan terjadinya peningkatan konversi lahan. Peningkatan belanja pemerintah yang ditujukan untuk sektor pertanian dapat menjadi salah satu faktor pemicu deforestasi. Menggunakan panel data dari 33 provinsi di Indonesia selama 10 tahun, dari tahun 2006 s.d 2015, penelitian ini mengkaji dampak tidak langsung dari belanja pemerintah di bidang pertanian, total belanja pemerintah per PDRB, dan belanja pemerintah di public sector terhadap deforestasi. Menggunakan system generalized method of moment estimation (GMM), penelitian ini menganalisa hubungan antara belanja pemerntah dan deforestasi. Hasil empirik menunjukkan bahwa terdapat dampak tidak langsung dari peningkatan belanja pemerintah: adanya peningkatan konversi lahan dari hutan untuk pertanian. Penelitian ini juga menunjukkan bahwa peningkatan belanja pemerintah di bidang pertanian dan total belanja pemerintah per PDRB memiliki dampak siknifikan terhadap deforestasi. Sedangkan belanja pemerintah untuk sector public tidak memiliki dampak untuk meningkatkan deforestasi.
Kata kunci : Deforestasi, GMM, belanja pemerintah
The Influence of Human Resource Management Practices on Employee Work Engagement
Authors: Alzyoud Adel Ali Yassin 
Published: December 2018

Abstract
The main objective of this study is to investigate the influence of Human Resources Man-agement (HRM) practices (employee communications, employee development and rewards and recog-nitions) on employee engagement. Employee engagement has emerged as one of the most important topics in the sphere of human resource management. The aim of this paper is to examine and gain bet-ter understanding of the drivers that influence employee engagement in a printing company. Employee communication, employee development, rewards, and recognitions were selected as independent varia-bles. Sample for the study consists of 151 staff from manufacturing. Data were collected with the help of a questionnaire and analyzed using the Statistic Package for Social Science (SPSS) version 23. Throughout the statistical analysis, it is found that there is a significant relationship between the two independent variables with the dependent variable. In conclusion, it is observed that HRM practices have an influence on the employee work engagement. This shows that employers need to develop proper and well-structured HRM policies in attaining high work engagement level among the employ-ees.
POTENSI SENI KRIYA ISTIMEWA DALAM PAMERAN “NEGARI NGAYOGYAKARTA HADININGRAT 2012”
Authors: Eskak Edi 
Published: December 2018

Arts Festival Negari Ngayogyakarta Hadiningrat 2012 undertaken in order to commemoratethe first century of Hamengku Buwono IX as well as 2,5 century of Ngayogyakarta Hadiningrat,featuring the character or the privilege of Yogyakarta through works of art by artists with no exitfrom the corridors of copyrighted artistic distinctiveness. The works on display most of the particularcharacter, specific and have their own specialty. Privileges of Yogyakarta with its dynamic,multicultural, and tolerant of the works reflected on display in the various mediums of expression andcreation.A wide assortment of works of art displayed expression of both the traditional, conventionaland non conventional, such as: painting, graphics, sculpture, video, film, animation, installation,performance art, digital prints, puppets, mixed media and others.Not to mention that the exhibition has a variety of craft works of art, such as the art which haselements of craftmanship. The uncommon art that relies on creativity ideas and handskills in thisexhibition appear surprisingly with exceptional works that have creative potential prospective. Theseyoung artists, among other craft; Karyadi, Fitriasih Pudyo Atmaningrum, I Gde Suryawan, and I GustiNgurah Edi Basudewa. Keywords: potential, arts crafts, specialty, and Negari Ngayogyakarta Hadiningrat
TEKNIK SCROLL UNTUK PEMBUATAN PRODUK INTERIOR
Authors: Andono Andono , Aruman Aruman 
Published: December 2018

In the world of crafts, especially wood craft, some techniques have been known to createa work of art such as carving, lathing, scrolling, etc. Scroll technique is the work of wood craftproduction using scrolling tools such as scrollsaw, which is a saw with small ribbon powered byelectricity. The tool has the specifications of cutting perpendicular, oblique, straight, and curvedpositions. This device is usually used as a tool to make holes in the process of wood carving(krawangan), or to cut the carving edge. In addition, scroll saw is usually used to make puzzle(education props / toys), and letters.With its specifications, scrollsaw can be explored further by making it as a major tool in themanufacture of wood craft art, such as interior elements. Our preliminary research proved thatthe tool can be used as the main tool for the manufacture of wood craftsmanship products(decorative masks) that is unique and distinctive. So in this study we try scroll technique for themanufacture of some products for interior elements, such as mirrors, wall clocks, table / walllamps, and the flowerpots. The manufacturing process consists of some stages such asexplorating, designing, embodying, and evaluating. By exploring the scroll technique, planks ofwood that are cut will produce a curved piece and form a small square field. If the blades arearranged with the arrangement that is designed with a particular composition, they will bear acertain distinctive and unique motive form in their field surface. The product of the interiorelements will have distinctiveness, uniqueness, and attractiveness of their own.Scroll technique can be developed for the manufacture of art craft products because thescrollsaw is easy enough to use. Therefore, this scroll technique can be used as a new jobopportunity for people who want to be engaged in it to reduce the number of unemployedpeople. Being creative with the scroll technique can be engaged professionally or just as ahobby for works of art. Keywords: scroll techniques, craft product, interior elements