bluuebunny/crossref_metadata_2025 huggingface dataset:
Hybrid Manufacturing and Experimental Testing of Glass Fiber Enhanced Thermoplastic Composites
Authors: Butt Javaid , Hewavidana Yasasween , Mohaghegh Vahaj , Sadeghi-Esfahlani Shabnam , Shirvani Hassan
Published: December 2019

Additive Manufacturing (AM) is gaining enormous attention from academic and industrial sectors for product development using different materials. Fused Deposition Modelling (FDM) is a popular AM method that works with thermoplastics. This process offers benefits of customisation both in terms of hardware and software in the case of desktop-based FDM systems. Enhancement of mechanical properties for the traditional thermoplastic material is a widely researched area and various materials have been added to achieve this goal. This paper focuses on the manufacture of glass fiber reinforced plastic (GFRP) composites using Hybrid Fused Deposition Modelling (HFDM). Commonly available polylactic acid or polylactide (PLA) material was inter-laced with 0.03 mm thick glass fiber sheets to manufacture GFRP products followed by tensile testing. This was done to investigate whether adding more layers increases the tensile strength of the GFRP products or not. Furthermore, the maximum number of glass fiber layers that can be added to the 4 mm thick specimen was also identified. This was done to demonstrate that there is an optimal number of glass fiber layers that can be added as after this optimal number, the tensile strength start to deteriorate. Microstructural analysis was undertaken after tensile testing followed by ultrasonic testing to assess the uniformity of the GFRP composites.
Distortion of Thin-Walled Structure Fabricated by Selective Laser Melting Based on Assumption of Constraining Force-Induced Distortion
Authors: Yang Tao , Xie Deqiao , Yue Wenchao , Wang Shuang , Rong Peng , Shen Lida , Zhao Jianfeng , Wang Changjiang
Published: November 2019

Metal additive manufacturing has shown great potential in aerospace, medical, and automobile industries; however, distortion of metal part has been an obstacle in widespread application of metal additive manufacturing. The mechanism of thin-walled structure distortion remains unrevealed. In this study, the origin of distortion of thin-walled structure was discussed, based on the previously proposed assumption of constraining force-induced distortion. The relation between the microstructure and macro-distortion has been linked via the constraining force. The influence of scan directions and structure sizes on the distortion was also studied, and the approaches to decrease the thin-walled structure were discussed. Use of the alternant scan strategy has been validated as an effective approach if the structure sizes cannot be adjusted.
On the Effectiveness of Different Surface Finishing Techniques on A357.0 Parts Produced by Laser-Based Powder Bed Fusion: Surface Roughness and Fatigue Strength
Authors: Denti Lucia , Sola Antonella
Published: November 2019

Laser-based powder bed fusion (L-PBF) is an additive manufacturing (AM) technique that uses a computer-controlled laser beam as the energy source to consolidate a metal powder according to a layer-upon-layer strategy in order to manufacture a three dimensional part. This opens the way for an unprecedented freedom in geometry, but the layer-wise build-up strategy typically results in a very poor surface finish, which is affected by the staircase effect and by the presence of partially molten particles. Surface finishing treatments are therefore necessary to obtain an adequate surface finish, to improve the fatigue behavior and to meet mechanical and aesthetic needs. The present contribution systematically compares numerous surface finishing techniques, including laser shock processing, plastic media blasting, sand blasting, ceramic shot peening and metal shot peening with steel particles of different sizes (ϕ = 0.2 mm and ϕ = 0.4 mm). The results show that all the proposed methods improve the surface quality and the fatigue life of A357.0 L-PBF parts. However, the achievement of the lowest surface roughness does not necessarily correspond to the best fatigue performance, thus suggesting that multiple mechanisms may be active and that besides surface roughness also residual stresses contribute to increase the fatigue strength.
Study of Static Recrystallization Kinetics and the Evolution of Austenite Grain Size by Dynamic Recrystallization Refinement of an Eutectoid Steel
Authors: Facusseh Cesar , Salinas Armando , Flores Alfredo , Altamirano Gerardo
Published: November 2019

Interrupted and continuous hot compression tests were performed for eutectoid steel over the temperature range of 850 to 1050 °C and while using strain rates of 0.001, 0.01, 0.1, and 1 s−1. The interrupted tests were carried out to characterize the kinetics of static recrystallization(SRX) and determinate the interpass time conditions that are required for initiation and propagation of dynamic recrystallization (DRX), while considering that the material does not contain microalloying elements additions for the recrystallization delay. Continuous testing was used to investigate the evolution of the austenite grain size that results from DRX. The results indicate that carbon content accelerates the SRX rate. This effect was observed when the retardation of recrystallization due to a decrease in deformation temperature from 1050 to 850 °C was only about one order of magnitude. The expected decelerate effect on the SRX rate when the initial grain size increases from 86 to 387 µm was not significant for this material. Although the strain parameter has a strong influence on SRX rate, in contrast to a lesser degree of strain rate, both of the effects are nearly independent of the chemical composition. The calculated maximum interpass times that are compatible with DRCR (Dynamic Recrystallization Controlled Rolling), for relatively low strain rates, suggest that the onset and maintaining of the DRX is possible. However, while using the empirical equations that were developed in the present work to estimate the maximum times for high strain rates, such as those observed in the wire and rod mills, indicate that the DRX start is feasible, but maintaining this mechanism for 5% softening in each pass after peak strain is not possible.
Bubble Rise Velocity and Surface Mobility in Aqueous Solutions of Sodium Dodecyl Sulphate and n-Propanol
Authors: Basařová Pavlína , Kryvel Yuliya , Crha Jakub
Published: November 2019

Aqueous solutions of simple alcohols exhibit many anomalies, one of which is a change in the mobility of the bubble surface. This work aimed to determine the effect of the presence of another surface-active agent on bubble rise velocity and bubble surface mobility. The motion of the spherical bubble in an aqueous solution of n-propanol and sodium dodecyl sulphate (SDS) was monitored by a high-speed camera. At low alcohol concentrations (xP < 0.01), both the propanol and SDS molecules behaved as surfactants, the surface tension decreased and the bubble surface was immobile. The effect of the SDS diminished with increasing alcohol concentrations. In solutions with a high propanol content (xP > 0.1), the SDS molecules did not adsorb to the phase interface and thus, the surface tension of the solution was not reduced with the addition of SDS. Due to the rapid desorption of propanol molecules from the bottom of the bubble, a surface tension gradient was not formed. The drag coefficient can be calculated using formulas for the mobile surface of a spherical bubble.
Inhibitors of Brassinosteroid Biosynthesis and Signal Transduction
Authors: Rozhon Wilfried , Akter Sonia , Fernandez Atiara , Poppenberger Brigitte
Published: November 2019

Chemical inhibitors are invaluable tools for investigating protein function in reverse genetic approaches. Their application bears many advantages over mutant generation and characterization. Inhibitors can overcome functional redundancy, their application is not limited to species for which tools of molecular genetics are available and they can be applied to specific tissues or developmental stages, making them highly convenient for addressing biological questions. The use of inhibitors has helped to elucidate hormone biosynthesis and signaling pathways and here we review compounds that were developed for the plant hormones brassinosteroids (BRs). BRs are steroids that have strong growth-promoting capacities, are crucial for all stages of plant development and participate in adaptive growth processes and stress response reactions. In the last two decades, impressive progress has been made in BR inhibitor development and application, which has been instrumental for studying BR modes of activity and identifying and characterizing key players. Both, inhibitors that target biosynthesis, such as brassinazole, and inhibitors that target signaling, such as bikinin, exist and in a comprehensive overview we summarize knowledge and methodology that enabled their design and key findings of their use. In addition, the potential of BR inhibitors for commercial application in plant production is discussed.
Spectrophotometric and Smartphone-Assisted Determination of Phenolic Compounds Using Crude Eggplant Extract
Authors: Morosanova M.A. , Bashkatova A.S. , Morosanova E.I.
Published: December 2019

In order to develop a simple, reliable and low cost enzymatic method for the determination of phenolic compounds we studied polyphenol oxidase activity of crude eggplant (S. melongena) extract using 13 phenolic compounds. Catechol, caffeic and chlorogenic acids, and L-DOPA have been rapidly oxidized with the formation of colored products. Monophenolic compounds have been oxidized at a much slower speed. Ferulic acid, quercetin, rutin, and dihydroquercetin have been found to inhibit polyphenol oxidase activity of crude eggplant extract. The influence of pH, temperature, crude eggplant extract amount, and 3-methyl-2-benzothiazolinone hydrazone (MBTH) concentration on the oxidation of catechol, caffeic acid, chlorogenic acid, and L-DOPA has been investigated spectrophotometrically. Michaelis constants values decrease by a factor of 2 to 3 in the presence of MBTH. Spectrophotometric (cuvette and microplate variants) and smartphone-assisted procedures for phenolic compounds determination have been proposed. Average saturation values (HSV color model) of the images of the microplate wells have been chosen as the analytical signal for smartphone-assisted procedure. LOD values for catechol, caffeic acid, chlorogenic acid, and L-DOPA equaled 5.1, 6.3, 5.8 and 30.0 µM (cuvette procedure), 12.2, 13.2, 13.2 and 80.4 µM (microplate procedure), and 23.5, 26.4, 20.8 and 120.6 µM (smartphone procedure). All the variants have been successfully applied for fast (4-5 min) and simple TPC determination in plant derived products and L-DOPA determination in model biological fluids. The values found with smartphone procedure are in good agreement with both spectrophotometric procedures values and reference values. Using crude eggplant extract- mediated reactions combined with smartphone camera detection has allowed creating low-cost, reliable and environmentally friendly analytical method for the determination of phenolic compounds.
2-Arylidene-1-indandiones as Pleiotropic Agents with Antioxidant and Inhibitory Enzymes Activities
Authors: Kouzi Olympia , Pontiki Eleni , Hadjipavlou-Litina Dimitra
Published: December 2019

Indandiones are a relatively new group of compounds presenting a wide range of biological activities. The synthesis of these compounds was performed via a Knoevenagel reaction between an aldehyde and 1,3-indandione and were obtained with a yield up to 54%. IR, 1H-Nucleic Magnetic Resonance (NMR), 13C-NMR, LC/MS ESI+ and elemental analysis were used for the confirmation of the structures of the novel derivatives. Lipophilicity values of compounds were calculated theoretically and experimentally by reversed chromatography method as values RM. The novel derivatives were studied through in vitro and in vivo experiments for their activity as anti-inflammatory and antioxidant agents and as inhibitors of lipoxygenase, trypsin, and thrombin. The inhibition of the carrageenin-induced paw edema (CPE) was also determined for representative structures. In the above series of experiments, we find that all the compounds showed moderate to satisfying interaction with the stable DPPH free radical in relation to the concentration and the time 2-arylidene-1-indandione (10) was the strongest. We observed moderate or very low antioxidant activities for selected compounds in the decolorization assay with ABTS+•. Most of the compounds showed high anti-lipid peroxidation of linoleic acid induced by AAPH.2-arylidene-1-indandione (7) showed a strongly inhibited soybean LOX. Only 2-arylidene-1-indandione (3) showed moderate scavenging activity of superoxide anion, whereas 2-arylidene-1-indandione (8) and 2-arylidene-1-indandione (9) showed very strong inhibition on proteolysis. 2-arylidene-1-indandione (8) highly inhibited serine protease thrombin. 2-arylidene-1-indandiones (7, 8 and 9) can be used as lead multifunctional molecules. The compounds were active for the inhibition of the CPE (30–57%) with 2-arylidene-1-indandione (1) being the most potent (57%). According to the predicted results a great number of the derivatives can cross the Blood–Brain Barrier (BBB), act in CNS and easily transported, diffused, and absorbed. Efforts are conducted a) to correlate quantitatively the in vitro/in vivo results with the most important physicochemical properties of the structural components of the molecules and b) to clarify the correlation of actions among them to propose a possible mechanism of action. Hydration energy as EHYDR and highest occupied molecular orbital (HOMO) better describe their antioxidant profile whereas the lipophilicity as RM values governs the in vivo anti-inflammatory activity. Docking studies are performed and showed that soybean LOX oxidation was prevented by blocking into the hydrophobic domain the substrates to the active site.
Cytotoxic Stilbenes and Canthinone Alkaloids from Brucea antidysenterica (Simaroubaceae)
Authors: Makong Yves Salomon , Mouthé Happi Gervais , Djouaka Bavoua Judith Liliane , Wansi Jean Duplex , Nahar Lutfun , Kamdem Waffo Alain François , Martin Claire , Sewald Norbert , Sarker Satyajit Dey
Published: December 2019

A phytochemical study of the root and bark of Brucea antidysenterica J. F. Mill. (Simaroubaceae) afforded three new compounds, including a stilbene glycoside bruceanoside A (1), and two canthinone alkaloids bruceacanthinones A (3) and B (4), along with ten known secondary metabolites, rhaponticin (2), 1,11-dimethoxycanthin-6-one (5), canthin-6-one (6), 1-methoxycanthin-6-one (7), 2-methoxycanthin-6-one (8), 2-hydroxy-1,11-dimethoxycanthin-6-one (9), β-carboline-1-propionic acid (10), cleomiscosin C (11), cleomiscosin A (12), and hydnocarpin (13). The structures of all the compounds were determined using spectrometric and spectroscopic methods including 1D and 2D NMR, and HRSEIMS. The identities of the known compounds were further confirmed by comparison of their data with those reported in the literature. The root and bark methanolic extracts, the dichloromethane and ethyl acetate soluble fractions, and the isolated compounds (3–13), were assessed for their cytotoxicity against the cancer cell lines A-549, MCF-7, and PC-3. The results suggested that compounds in the extracts might possess a synergic action in their cytotoxicity.
Bacterial Cellulose and Emulsified AESO Biocomposites as an Ecological Alternative to Leather
Authors: Fernandes Marta , Souto António Pedro , Gama Miguel , Dourado Fernando
Published: November 2019

This research investigated the development of bio-based composites comprising bacterial cellulose (BC), as obtained by static culture, and acrylated epoxidized soybean oil (AESO) as an alternative to leather. AESO was first emulsified; polyethylene glycol (PEG), polydimethylsiloxane (PDMS) and perfluorocarbon-based polymers were also added to the AESO emulsion, with the mixtures being diffused into the BC 3D nanofibrillar matrix by an exhaustion process. Scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy analysis demonstrated that the tested polymers penetrated well and uniformly into the bulk of the BC matrix. The obtained composites were hydrophobic and thermally stable up to 200 °C. Regarding their mechanical properties, the addition of different polymers lead to a decrease in the tensile strength and an increase in the elongation at break, overall presenting satisfactory performance as a potential alternative to leather.
A STUDY OF FACTORS AFFECTING THE FLUIDITY OF CEMENT
Authors: Шахова Л. , Shakhova L. , Черноситова Е. , Chernositova E. , Щелокова Л. , Schelokova L. , Денисова Ю. , Denisova Y.
Published: November 2019

The fluidity of cement powder has a significant impact on the duration and labor costs in the process of transportation and shipment of cement. This determines the relevance of the task of finding mechanisms to control this parameter.

During the production process, the fluidity of the cement powder is formed depending on the properties of the initial cement charge, the requirements for the thinness of the grinding to the finished product, the hardware design and the conditions of the process. In turn, the fluidity of cement affects the grinding process and the productivity of the mill. The rheological characteristics of the cement binder change over time depending on the physical properties of the material, environmental conditions and the equipment used for its storage. The reasons for the deterioration of the flow of cement powder is still not fully studied.

The article is devoted to the study of the main factors affecting the fluidity of cement. The results of the statistical analysis of cement fluidity depending on the thinness of cement grinding (on the residue on the sieve №008 and the specific surface area by Blaine method) humidity, bulk weight and weight in the most compacted state. In addition, the relationship of production factors and cement fluidity is considered. Correlation and regression analysis shows that the fluidity is affected by a variable factor, which is not yet quantified.
Saint Brigit and the fire from heaven
Authors: Bray Dorothy Ann
Published: November 2019

Miracles with fire or supernatural light phenomena have, in the past, associated the saints of Ireland with pagan beliefs and rituals, solar myths and fire cults. On the other hand, biblical precedents can be found to restore the saints to Christian tradition. Miraculous fire and light in both Irish pagan and Christian traditions symbolise not only the presence of the deity on earth but also the illumination of the mind and spirit. The similarity which appears between the saint and the goddess Brigit may connect her fiey miracles to the ancient cult of the goddess, patron of poetry, medicine and metalwork (a craft made possible by fire) and to the heart and foundation of Irish culture itself.
Actes apocryphes des apôtres et Actes des apôtres canoniques. État de la recherche et perspectives nouvelles (II)
Authors: Gounelle Rémi
Published: December 2019

L’étude des allusions possibles aux Actes lucaniens que contient chacun des six Actes apocryphes antérieurs au IVe s. (Actes d’André, Actes de Jean, Actes de Paul, Actes de Pierre, Actes de Pierre et des douze apôtres et Actes de Thomas) est délicate à mener et pose de sérieux problèmes de méthode. Au vu des matériaux conservés, seule la rédaction de Verceil des Actes de Pierre témoigne d’une connaissance effective des Ac.
L'Immaculée Conception à Séville et la fondation sacrée de la monarchie espagnole
Authors: Prosperi Adriano
Published: December 2019

This paper first deals with the theological intentions of the doctrine of the Immaculate Conception in the Middle Ages, and continues to demonstrate that the decisive phase of the triumph of this doctrine took place in Spain in the first third of the seventeenth century. It was vigorously sustained by the Franciscans against the Dominicans, who were «maculist » , celebrated with great pomp in Sevilla, and supported by Philip III in 1616. So religious absolutism served the interests of the new Spanish monarchy.
BONE MINERAL DENSITY WOMEN AGED 45 AND OLDER WITH OVERWEIGHT AND OBESITY
Authors: Luu Ngoc Giang , Le Anh Thu , Nguyen Hai Thuy
Published: December 2019

Objectives:

(1) To assess the bone mineral density by dual energy X-ray absorptiometry in women aged 45 and older with overweight, obesity.
(2) To approach the relationship between the bone mineral density and osteoporosis risk factors in women aged 45 and older with overweight, obesity.

Materials and method: 207 women aged 45 and older receiving treatment at Medic - Binh Duong hospital were divided into 2 groups: 147 women with overweight, obesity and 60 women without overweight, obesity. Research was designed as a cross-sectional descriptive study and comparative control group.

Results: The femoral bone mineral density in terms of women with overweight, obesity is (0.795 ± 0.121) and the control group is (0.731± 0.116). The bone mineral density of lumbar spine in women with overweight, obesity is (0.800 ± 0.138) and the control group is (0.757 ± 0.148).

Conclusions: The bone mineral of femora in women with overweight, obesity was higher than that of the control group (p<0.05). Between two groups, there were no differences in the bone mineral of lumbar spine (p>0.05). There was a statistically significant relationship between the bone mineral density and age, menopause state, and duration of menopause in women aged 45 and older with overweight, obesity (p<0.01).

Key words: Bone mineral density, women aged 45 and older, overweight, obesity
The results of the analysis of the criteria of therapeutic alliance of patients orthopedic profile of outpatient physical therapy program
Authors: Fedorenko S.М. , Vitomskyi V.V. , Lazarіeva О.B. , Vitomskа M.V.
Published: December 2019

Objective: to determine the peculiarities of forming a therapeutic alliance in outpatients with disorders of orthopedic profile after completing a course of physical therapy and their physical therapists depending on the psychotype of patients.

Methods of research: theoretical analysis and generalization of literary sources, method of systematization of scientific information; Working Alliance Inventory questionnaire Form SF Hatcher (WAI). Patients were grouped using the International Classification of Functioning and Disease Types. The obtained results were processed by adequate methods of mathematical statistics. The study involved 113 patients who underwent a course of physical therapy at FESCO Medical Center during 2013-2015.

Results. According to the results of the statistical analysis, patients with irrational attitude to the disease (irrational psychotypes) had significantly lower scores on the eight items of the WAI questionnaire out of twelve, as well as on all three totals. In particular, the «goal» score was significantly better in patients with rational psychotypes: Me (25; 75) scores were 14 (12.75; 15) points, versus 12 (11; 14) scores among patients with irrational psychotypes (p<0,01). Similarly, the score of the "task" was 15 (13; 15) points against 12 (11; 15) points (p <0.01), and the total score of the "bond" points 16 (16; 17) points against 14 (13; 15) points (p <0.01). Thus, it can be stated that the evaluation of the “goal” items showed the lowest results, which were the farthest from the maximum values.

Conclusion. The results obtained and the statistical analysis made it possible to evaluate the different sides of the level of formation of the therapeutic alliance, to identify the strengths and weaknesses and, thus, necessitated the development of ways to improve the union of the patient and the physical therapist.
Produção imaginária e formação humana: implicações para a compreensão da violência
Authors: Paula Ludimila Gabriela Correa de , Santos Sheila Daniela Medeiros dos
Published: November 2019

Dentre os empecilhos que afetam o desenvolvimento concreto dos processos escolares é possível destacar o fenômeno da violência Nesse contexto, ao partir da premissa de que toda atividade humana é de natureza imaginária, o presente trabalho pretende analisar as dimensões do imaginário e da imaginação, à luz da Psicologia Histórico-Cultural, por conceber estas dimensões como campo frutífero para relacionar e explicar o fenômeno da violência. Esse estudo, ao pautar-se em uma abordagem qualitativa de pesquisa, fundamentalmente bibliográfica, desvelou que a instância imaginária se diferencia e supera o sentido normalmente atribuído à imaginação, porque confere aos homens o poder de transformar a realidade concreta. Portanto, torna-se evidente que a dimensão do imaginário deve ser compreendida através do trabalho tipicamente humano como uma potência criadora, emancipadora do homem e da sociedade, que representa o poder de engendrar o novo e de asseverar a formação humana.
Pensar a educação a partir da sociologia: questões sobre o campo, o habitus e o conhecimento
Authors: Silva Maria Paula Rossi Nascentes da
Published: November 2019

Pensar a educação brasileira a partir da sociologia é a proposta deste estudo. A preocupação da autora é mais compreender as contribuições dos sociólogos na compreensão das atividades fins da educação do que trabalhar suas teorias exaustivamente. Procura-se compreender no estudo como se parte do senso comum e se chega a escolhas científicas, como se dá a relação entre sociologia e educação em termos de contribuições para a construção de conhecimentos contributivos para a prática educativa e finalmente como entender a ação dos professores enquanto um coletivo em suas unidades de ensino.
PENGARUH KEKUATAN STRUKTUR MATERIAL KOMPOSIT SANDWICH PLATE FIBERGLASS TERHADAP BIRO KLASIFIKASI
Authors: Roma Romadhoni
Published: November 2019

Pada penelitian ini material komposit sandwich yang diuji diperuntukkan sebagai bahan lambung kapal fiberglass.  Komposit sandwich dengan core yang dikuatkan dibuat, diuji tekan dan bending untuk mengetahui pengaruh variasi ukuran penguat core terhadap kekuatan tekan dan bending komposit sandwich. Core berupa polyurethane yang diperkuat dengan square cells mengunakan variasi kertas kardus bekas sedangkan untuk ukuran panjang sisi square cells divariasikan: 10 mm, 20 mm, 30 mm dan 40 mm.  Komposit sandwich ini dibuat dengan  metode cetak tangan (hand lay up) kemudian diuji bending  metode pembebanan tiga titik (three point bending) dan uji tekan.  Penguatan core dengan sistem square cells  diharapkan dapat menambah kekuatan tekan dan bending  komposit sandwich. Dari hasil pengujian kuat lentur rata – rata pada komposit varian cell10 1,03 kg/mm2, varian cells20 sebesar 4,42 kg/mm2, varian cell30 sebesar 3,17 kg/mm2, varian cells 40 29,54 kg/mm2, varian sandwich full 20,10  kg/mm2, dan varian single skins 3,51  kg/mm2. Sedangkan impak Sedangkan rata – rata keuletan pada komposit varian. varian cells10 sebesar 1,8  joule/mm2, varian cells20 sebesar 1,77 joule/mm2 varian cells30 sebesar 1,80  joule/mm2, varian cells40 sebesar 2,09 joule/mm2 dan varian full sandwich sebesar 2,28 joule/mm2. Selanjutnya hasil maximum principal stress  dari model terlihat bahwa titik maksimumnya yaitu sebesar 11,6 MPa yang terjadi Maksimum tegangan terjadi pada gading bottom yaitu sebesar 6,9759 kN/m2 atau 6.97 kPa. Hal ini terjadi dikarenakan terdapat beban yang besar dibagian tersebut. Kata kunci : fiberglass, komposit, sandwich, core.
PURWARUPA SISTEM PENDETEKSI JARAK ANTAR QUADROTOR DENGAN SENSOR GPS
Authors: Apriaskar Esa
Published: November 2019

Technology of UAV (Unmanned Aerial Vehicle) which is quite rapidly developing in recent years, is quadrotor. The increasing number of quadrotor utilization in various aspects of life is one of the factors driving the development of research on quadrotor technology. The ability of a quadrotor to determine its distance from other quadrotor is one of the important factors that can support the success of formation swarm of quadrotor. This research aimed to create a prototype of distance detection system capable of supporting the mission of the formation swarm of quadrotor. Two pairs of latitude and longitude angles data from GPS sensor which represented coordinate position of 2 quadrotors were calculated using haversine formula to get the distance between 2 quadrotors. Data resulted from the system are compared with actual distance to test the success of the system in calculating the distance between two quadrotor distance.
Redesain Kapal Rede Untuk Analisa Hambatan
Authors: Adnyani Luh Putri , Arrachman Reza Furqan , Arrachman Reza Furqan
Published: November 2019

Kapal Rede adalah proyek pembangunan kapal perintis oleh pemerintah untuk meningkatkan konektivitas antar pulau terutama pada daerah-daerah terpencil, terluar dan belum berkembang. Pengumpulan data dari penelitian ini mengambil tempat di PT. Daya YES Shipyard sebagai salah satu galangan yang membangun kapal Rede. Dari data didapatkan bahwa tekanan fluida pada bagian haluan lebih besar sehingga efek gelombang pada sisi kapal menjadi tinggi hingga melampaui main deck. Oleh karena itu dilakukan redesain dengan cara meperuncing bagian haluannya. Pada analisa uji hambatan kapal menggunakan bantuan Software Maxsurf Resistance dengan metode Holtrop & Van Oortmerssen. Pada percobaan dengan metode Holtrop nilai hambatan kapal Rede sesudah redesain adalah 16.335 Kn, sedangkan dengan menggunakan metode van Oortmerssen adalah 21.470 Kn, dibandingkan dengan kapal Rede sebelum redesain memiliki nilai hambatan 41.48 Kn. Jadi dengan redesain kapal Rede, hambatan dapat diturunkan sampai 50 %.
Editorial
Authors: Villasmil Ferrer Jairo Ramón
Published: November 2019

Editorial
Liderazgo directivo como factor de mejoramiento en la calidad educativa
Authors: Lugo Nailibeth , Villasmil Ferrer Jairo Ramón
Published: November 2019

La investigación tuvo por objetivo analizar el liderazgo directivo como factor de mejoramiento en la calidad educativa del Liceo Nacional Mirimire en el Estado Falcón. La  población estuvo conformada por veintidós (22) docentes que laboraron en el año escolar 2016-2017 en la mencionada institución. Para la recolección de los datos se utilizó la técnica de la encuesta y como instrumento un cuestionario con escalamiento tipo Likert, que fue validado a través de la técnica de juicio de experto y para determinar su confiabilidad, se calculó el Coeficiente Alpha de Cronbach, con un resultado de 0.96. De los resultados obtenidos se concluye que el personal directivo ejerce un liderazgo que presenta rasgos identificadores del estilo laissez faire combinado con el estilo autocrático, se enfoca en las tareas administrativas descuidando los estándares de las diversas dimensiones que le otorgan un proceso integral de acciones orientadas a lograr la calidad educativa.
QUARANTINE CONTROL: INTERDEPARTMENTAL
OPERATIONAL PLAN OF SANITARY-ANTIEPIDEMIC (PREVENTIVE)
ACTIVITIES IN THE BORDER CHECKPOINTS OF THE RUSSIAN FEDERATION
ON HIGH-ALERT STATUS AND IN EMERGENCY SITUATION OF SANITARYEPIDEMIOLOGICAL
CHARACTER
Authors: Ryzhkov Yu.V. , Moskvitina E.A.
Published: November 2019

In this paper we describe the order for developing of interdepartmental operational plan of sanitaryantiepidemic
(preventive) activities in border checkpoints of the Russian Federation. The plan
composition is proposed with the identification of activities for participating bodies and organizations in
the border checkpoints on high-alert status and in emergency situation of sanitary-epidemiological
character.
INFLATION TARGETING IN THE COUNTRIES WITH MIDDLE AND LOW INCOME: TRADITIONAL DILEMES AND POST-CRISIS CHALLENGES
Authors: KOZYUK Viktor
Published: December 2019

Introduction. It is focused on the problem inflation targeting regime evolvement in emerging market countries. The generalization of key problems is done relying on literature review and overview of empirical works. Purpose of the paper is to show how the way of thinking about inflation targeting in emerging market countries is changed according to they economic and financial development as well as they connections with global economy. It is distinct some the most disputable and progressmade arrears of inflation targeting in less developed countries: connections between price and exchange rate stability; reactions on the supply-side shocks; institutional drivers of deviations from the targets; cointegration between inflation targeting and macroprudential policy. It is fount the more country advanced in the structural reforms the less sensitive price stability to exchange rates movements is and term-of-trade shocks more resemble supply-side shocks. But central banks from emerging market countries couldn’t stay neglect of supply-side shocks because of more sensitive inflation expectations to core-inflation reaction on non-core inflation behavior. While commodity shocks may easily deteriorate movements of the most volatile components of price index supply-side shocks are more like persistent in nature. Not to react on them according to orthodox New-Keynesian theory is very risky especially then inflation expectations are not strongly anchored. Results. Deviations from inflation targets are viewed from institutional position meaning that political environment as well as factual central bank’s independence is important and markets flexibility, that minimizes costs of stronger reaction on price shocks, is a consequence of structural reforms. Financial stability in emerging markets is viewed from capital flows and exchange rates volatility perspective that may bring additional conflicts with inflation targets. Conclusions. It is stressed that monetary policy in emerging markets will benefited from more active approach on financial imbalances. That is why inflation targeting with pro-active macroprudential policy is shown as example of relevant policy-mix for better macroeconomic performance.
The COMPARISON OF SHARIA BANKING PERFORMANCE BASED ON RISK PROFILE AND EARNING AND CAPITAL (REC)
Authors: Ariwibowo Prasetio , RABBANI HAMZAH , Herwati Kanaria
Published: December 2019

This study aims to describe the performance of Islamic banking REC method better or equal to the performance of Islamic banks.

Descriptive method isused to find how ratio of Non Performing Loans and Loan to Deposit Ratio representing Risk Profile, Earning representing Return on Assets and Capital ratio representing Capital Adequacy Ratio in Islamic banking for the period 2014-2017.

The Independent sample t-test hypothesis test results show that, at th eaverage value of theNPL, FDR and CAR is in significant differences between 11 Islamic banks in Indonesia.Where as ROA has a very significant difference between one bank and an other from 11 Islamic banking in Indonesia
Fortalecimiento del proceso lecto-escritor integrando la fe en el aprendizaje
Authors: Rojas Brigith , Pautt Jorge , Martínez Nicolás
Published: December 2019

Esta es una investigación de tipo cualitativo que busca atender una situación problémica en particular: los investigadores ven con preocupación que el material de trabajo existente en la institución no tiene afinidad alguna con la fe adventista. El proyecto busca incluir la fe adventista en el proceso educativo. Esto se quiere hacer por medio de la elaboración de un material lecto-escritor que lleve integrado la fe en el proceso enseñanza-aprendizaje para el grado segundo del Colegio Adventista Bethel del municipio de Arauquita-Arauca. Como resultado del trabajo de los investigadores, queda un material de veinte lecturas con sus respectivas actividades.
CARA PEMBUATAN BIOPESTISIDA DAUN PEPAYA
Authors: Kesumawati Neti , Masturi H. , Armadi Y.
Published: December 2019

Pada umumnya penduduk Desa Perbo Kecamatan Curup Utara Kabupaten Rejang Lebong bermata pencaharian sebagai petani. Bercocok tanam merupakan andalan utama penopang kehidupan mereka, semakin banyak hasil produksi pertanian yang diperoleh maka semakin meningkat kesejahteraan masyarakat petani. Oleh karena itu, petani Desa Perbo Kecamatan Curup Utara selalu berusaha untuk meningkatkan hasil panennya melalui berbagai cara, antara lain pemakaian pestisida sintetik dalam pembrantasan hama penyakit. Mereka tidak menyadari bahwa pemakaian pestisida ini akan menimbulkan dampak negatif, seperti timbulnya berbagai penyakit yang menyerang manusia serta terjadinya pencemaran lingkungan. Mengingat hal tersebut di atas, maka perlu mengalihkan pemakaian pestisida sintetik menjadi pestisida alami. Cara yang paling efektif untuk mengalihkan perilaku masyarakat yang mengutamakan pemakaian pestisida kimia ini adalah melakukan penyuluhan/pelatihan, dimana metodenya terdiri dari : tentang kelebihan dan kekurangan pestisida berbahan dasar kimia dan pestisida alami (biopesitisida) serta pelatihan pembuatan biopestisida, terutama biopestisida daun pepaya. dimana metodenya terdiri dari : (1) Pendidikan dan penyuluhan tentang perlunya menjaga kelestarian lingkungan; kelebihan dan kekurangan pestisida berbahan dasar kimia dan pestisida alami (biopesitisida); serta bagaimana teknik pembuatan biopestisida daun pepaya; (2) Pelatihan cara pembuatan biopestisida yang bahan bakunya daun pepaya yang sangat berlimpah di Desa Perbo Kecamatan Curup Utara. Melalui kegiatan penyuluhan/pelatihan dalam rangka pengabdian masyarakat ini telah meningkatkan wawasan anggota kelompok wanita tani seputar pestisida sintetik dan dampak yang ditimbulkan terhadap lingkungan serta dalam membuat pestisida daun pepaya. Selanjutnya diharapkan dapat menekan biaya operasional dalam berusaha tani serta meminimalisir pencemaran lingkungan akibat pemakaian pestisida sintetik.Kata Kunci : daun pepaya, pestisida nabati, pencemaran lingkungan
Penerapan Media Audio Visual Dalam Peningkatan Angka Pemberian Air Susu Ibu (Asi) Eksklusif Di Desa Kurotidur Kecamatan Argamakmur Kabupaten Bengkulu Utara
Authors: Angraini Wulan , Prihantoro Cahyo , Amin M. , P Bintang Agustina , Yanuarti Riska
Published: December 2019

Air Susu Ibu adalah sumber gizi sehat untuk bayi. Pemberian ASI Eksklusif didefinisikan WHO yaitu menyusui bayi dengan hanya ASI selama 6 bulan pertama dalam kehidupan bayi tanpa memberikan makanan dan minuman tambahan kecuali obat dan vitamin dan terus memberikan ASI tersebut hingga 2 tahun. Pemberian ASI eksklusif sangat penting karena merupakan makanan utama dan pertama yang mengandung zat-zat lengkap yang dibutuhkan bayi untuk pertumbuhan, perkembangan bayi serta memberikan manfaat kekebalan tubuhnya. ASI tidak tertandingi oleh makanan apapun. Pemberian ASI eksklusif pada bayi akan meningkatkan involusi rahim sehingga mengurangi komplikasi masa nifas. Memberikan ASI juga berdampak positif bagi ibu karena isapan bayi akan menyebabkan kontraksi uterus yang mencegah perdarahan post-partum.Pada saat menyusui juga melepaskan oksitosin setelah melahirkan, juga mengurangi perdarahan rahim serta mencegah sekitar seperlima dari kematian neonatal. Konseling gizi dan laktasi pada saat kehamilan dan setelah melahirkan melalui kunjungan rumah berpengaruh terhadap peningkatan pengetahuan,sikap ibu tentang ASI Eksklusif.Kata Kunci    : ASI Eksklusif, Ibu Hamil, Konseling
Necrosis tubular aguda por hipercalcemia secundaria a intoxicación por vitamina D
Authors: Etayo Edwin Harvey , Restrepo César A.
Published: November 2019

Los trastornos del metabolismo del calcio son considerados situaciones clínicas frecuentes. La hipercalcemia puede dar lugar a alteraciones en la función renal, su origen es principalmente el hiperparatiroidismo y las neoplasias. Nosotros reportamos el caso de una paciente quien recibió dosis altas de vitamina D, y posteriormente hormona tiroidea y diurético tiazídico, factores que la llevaron a presentar hipercalcemia y falla renal aguda en la cual se detectó por biopsia renal la presencia de necrosis tubular aguda
A STUDY ON THE PREVALENCE AND SEASONAL VARIATION OF HEPATITIS A IN PATIENTS ATTENDING JNIMS HOSPITAL
Authors: Ingudam Dr. Dayananda
Published: December 2019

BACKGROUND: Hepatitis is the most common cause of acute viral hepatitis. It causes severe, often fatal disease in
adults especially in those with underlying liver dysfunction but is mostly asymptomatic in children. The present study was
conducted with the aimed to nd the prevalence and seasonal variation of HAVinfection in patients attending JNIMS hospital.
METHODOLOGY:Across sectional hospital based study was conducted in the department of Microbiology, JNIMS, Imphal, Manipur. Rapid
immunochromatographic assay was performed for the detection of IgM antibody to HAVin human serum.
RESULTS: Out of the 84 serum samples 20(23.80%) was found to be positive for hepatitis IgM, of which 11 (55%) were found in males and
9(45%) were found in females. A seasonal increase in incidence of HAV infection was found during the rainy season of January – March (50%)
and April – June (35%).
CONCLUSION: The global seroepidemiology of hepatitis A is changing in many developing nations giving rise to unique non immune
adolescent and adult populations emerging in endemic regions thereby conferring a risk of developing severe hepatitis A. Hence, nding the
prevalence, seasonal variation and timely detection of HAVinfection will help in minimising the development of further complication
Work stress and its relation to educational leadership among school principals
Authors: Hammed Shahad
Published: December 2019

Research Abstract: -. In order to achieve the research objectives, the researcher applied the scale to a sample adult (50) of principals of primary and secondary schools who were randomized. After processing the data statistically, the research reached the following results:1- There is an inverse correlation between work pressures and educational leadership. there are same recommendations and suggestions such as 1- Interested in modernizing school management systems in school, leading to the development of its abilities in dealing with the pressures of work. The research proposals are 1- Relationship of psychological stress to school principals with personal variables that relate to age and experience.
RESGATE DA MEMÓRIA DOS PERSEGUIDOS POLÍTICOS NO BRASIL: CURRICULOS E SABERES EMANCIPATÓRIOS
Authors: Macedo Yuri Miguel , Francischetto Gilsilene Passon Picoretti
Published: December 2019

Esta pesquisa apresenta reflexões acerca da importância do resgate da memória em torno da resistência ao regime militar no Brasil como um elemento fundamental na construção de uma educação emancipatória. Para que possa efetivar a justiça transicional em nosso país o caminho passaria por um novo projeto educativo, não necessariamente escolar, em que as memórias reveladas possam ter espaços de visibilidade e compor os horizontes de sentido histórico das novas gerações.Assim, a pergunta que norteia o presente artigo é: De que forma um projeto educativo emancipatório utilizaria a memória como fator de potencialização da tomada de consciência dos indivíduos?
AVALIAÇÃO DA TAXA DE PRENHEZ DE VACAS DE LEITE COM A UTILIZAÇÃO DE PROTOCOLOS COM E SEM A PRESENÇA DE FOLÍCULOS ESTIMULANTES
Authors: Neto Alberto Chambela , Almeida Leonardo Campos , Briske Rodrigo , Haddad Ismail Ramalho , Júnior Luiz Marcari
Published: December 2019

Objetivou-se neste presente estudo avaliar a responsividade da PGF2α (Sincrocio) em 9 animais mestiços Holandês/Zebu em diferentes fases do ciclo estral, taxa de prenhes, a viabilidade em relação custo:inseminação em vacas de leite. Foi avaliada a estrutura ovariana dos animais com a utilização de ultrassom, avaliação do escore corporal, alimentação, histórico vacinal e vermifugação de cada animal individualmente antes de ser submetidas ao protocolo de sincronização. O protocolo consistiu na observação do cio nos primeiros 7 dias, em que dois animais manifestaram cio e foram inseminados. Após os 7 primeiros dias foi feita a primeira aplicação da PGF2α e 5 animais apresentaram cio em até 5 dias após a aplicação e foram inseminados; 2 animais foram submetidos a segunda aplicação 7 dias após a primeira e não foi observado cio nos mesmos; 2 dos 5 animais que apresentaram cio à primeira aplicação repetiram cio. Totalizando 7 animais responsivos ao protocolo. Dos 9 animais submetidos a  sincronização 5 tiveram a prenhes confirmada, 2 vacas não manifestaram cio na primeira e nem na segunda aplicações e 2 repetiram cio ao término do estudo. Conclui-se que a administração de PGF2α em protocolo de sincronização de ovulação em vacas mestiças obteve 55% de prenhes confirmada e 77% de responsividade ao protocolo com custo baixo em relação a outros protocolos no mercado. Mais estudos são necessários para explicar a fisiologia subjacente da utilização de PGF2α em protocolos.
A QUÍMICA VERDE APLICADA NA RECICLAGEM DO ÓLEO RESIDUAL DE FRITURA EM UM PROJETO SOCIAL NA REGIÃO DO RIO ARIBIRI, VILA VELHA-ES
Authors: Schaffel Izabela de França , Rodrigues Ingrid Langa , Bozi Nalia Santos , Vindilino Raquel Augusta Barbosa , De Carvalho Renata Adão , Dos Santos Wallace Nogueira Serafim , Dias Mauro Cesar
Published: December 2019

Neste trabalho foi feito o acompanhamento da coleta seletiva, adequação da reciclagem do óleo residual de fritura na produção de sabão ecológico e atividades de educação ambiental realizadas pelo Instituto Verde Vida na Região do Rio Aribiri, Vila Velha-ES no período de 2014-2018, com a responsabilidade técnica do Instituto Federal do Espírito Santo, campus Vila Velha. Os maiores registros dos insumos coletados na região no período avaliado foram de 0,9% para latas de alumínio, 66% parapoli (tereftalato de etileno) e 1,7% para óleo residual de fritura, principalmente no ano de 2016. Com a aplicação dos princípios da Química Verde na reciclagem do óleo residual de fritura e produção de sabão ecológico foram alcançadas significativas melhoras na produção. O processo de fabricação em larga escala do sabão ecológico foi aperfeiçoado com planilha de controle de carga, o que proporcionou um produto final com os parâmetros avaliados de acordo com legislação (1% de alcalinidade livre e pH11,50) e apresentou percentagem de limpeza acima de 98%. As ações de educação ambiental alcançaram um total de 641 pessoas entre público adulto, jovem e infato-juvenil no período avaliado.
COMPUTATIONAL STUDY OF ORGANIC COMPOUNDS – AN APPLICATION FOR LEARNING IN CHEMISTRY
Authors: Filho Eloi Alves da Silva , Uliana Fabricio , Ambrozio Stêner Romanel , Oliveira Cleverton , Martin Renan , Gonçalves Arlan da Silva
Published: December 2019

Organic chemistry is a theme not so easy to understand by undergraduating students. The motivation of this work was carried out computational study of three different molecules by molecular modeling using classic and semi-empirical methods besides open-source softwares. The optimized structures were visualized through 3D representations which made the study more understanding. Physical chemistry properties were extracted from all molecules. For the molecule one there was good correlation between the calculation methods. For the molecule two and more complex structures like molecule three and four there was possible influence of steric effect showing that each method is applicable for each study system.
AUTOMATION USING IOT IN GREENHOUSE ENVIRONMENT
Authors: S. Raj Jennifer , J Vijitha Ananthi
Published: December 2019

Green house is generally a building of small or large structures. The structure of the green house is made of walls and the translucent roof, with the capability of maintaining the planned climatic condition. It ensures the growth of plants that requires a specified level of soil moisture, sunlight, humidity and temperature. The green house systems available are human monitored systems that entail the continuous human visit causing distress to the worker and also decrease in the yield if the temperature and the humidity are not properly and regularly maintained. This paves way for the concept of the green house automation. The green house automation formed by the incorporation of the Internet of things and the embedded system addresses the problem faced in the green house and provides with the automated controlling and monitoring of the green house environment replacing the undeviating administration of the farmers. This paper also proposes the automation using internet of things in green house environment by using the Netduino 3 and employing the sensors for the sensing the moisture, temperature, sunlight and humidity, to enhance the production rate and minimize the discomfort caused to the farmers.