bluuebunny/crossref_metadata_2025 huggingface dataset:
Yoona: A Brief Journey of An Entertainer for Our Time
Authors: Setiawan Adib Rifqi , Octaviani Eny Rochmawati
Published: April 2019

This work highlights the occurrence and complexities of erotic capital in Yoona’s career and discusses the important implications of use her erotic capital to influence others or gain desired ends. It gained that Yoona not only use her erotic capital, but also cultural and social capital to improving her performances as a great entertainer. In so doing, the findings highlight a need for rethinking traditional conceptualizations of empowerment whereby resistance equals empowering and reproduction equals disempowering, and initiates a new direction for feminist scholarship in this regard.
TUGAS RESUME SISTEM INFORMASI MANAJEMEN
Authors: ShintaFebyanita
Published: April 2019

RESUME SISTEM INFORMASI MANAJEMEN
Communication Strategies to Overcome Linguistic Barriers: A Snapshot of Indonesian Postgraduate Students as a Second Language Learner Living in Target Language Community
Authors: Yuliandri Yuliandri
Published: April 2019

Being able to communicate effectively in English on both social and academic setting, is one of the biggest challenge faced by International students learning in English speaking countries like New Zealand. This challenge is inevitably relevant to students’ from Indonesia, a country where English is not a second language. Extra effort is required since these International students must be able to learn and produce the language simultaneously in a very immediate context, shifting from EFL to ESL context. To be able to shift from these two different learning contexts, specific strategies are needed. The use of communication strategies is purposed to assist language learners in a target language community to in delivering and receiving messages in spoken communication. This research is aimed to: a) identify types of communication strategy used by Indonesian adult Postgraduate students; b) investigate how these communication strategies are learned and applied. The data is collected qualitatively through semi-structured interviews. The result of this study reveals that, the two respondents in general are using the same communication strategies: compensatory strategy in form of circumlocution; on the other hand, avoidance strategy is also applied as a last resort. Furthermore, this research also highlights learning strategies developed/learned by the respondents to upgrade their communication competence.
Growth elements of the trees and the stand of Gymnocladus dioicus (L.) K. Koch at Fruška gora (Serbia)
Authors: Bobinac Martin , Šušić Nikola , Bauer-Živković Andrijana , Andrašev Siniša
Published: April 2019

Istraživanje je provedeno u kulturi alohtone vrste Gymnocladus dioicus (L.) K. Koch na Fruškoj gori, osnovanoj 1932. godine s razmakom sadnje 3 × 3 m, na staništu lužnjaka i običnog graba (Carpino betuli-Quercetum roboris /Anić 59/ Rauš 1971.), na nadmorskoj visini 120 m.
Elementi rasta stabala i sastojine u dobi od 75, 80 i 85 godina ukazuju na visoku proizvodnost kulture. U 85 godina od sadnje zabilježeno je 502 stabla po hektaru s prosječnim promjerom od 39,6 cm (dg), dominantnim promjerom (D100) 51,5 cm, srednjom visinom 33,0 m, dominantnom visinom (H100) 35,0 m, s temeljnicom 61,74 m2·ha-1 i volumenom od 918,23 m3·ha-1. Tečajni prirast volumena bio je u razdoblju od 76 do 80. godine 18,80 m3·ha-1, a u razdoblju 81-85. godine 18,27 m3·ha-1 (Tablica 1). Provedena analiza pokazala je da strukturna svojstva i veličine elemenata rasta sastojine definira prostor za rast stabala u kulturi. Skupina unutarnjih stabala u kulturi (A) zaostaje u debljinskom i visinskom rastu u odnosu na skupinu rubnih stabala (B), što pokazuju postignuti srednji i dominantni promjeri i visine (Tablica 5), kao i značajne razlike između tečajnog prirasta promjera, visine, temeljnice i volumena (Tablica 8).
Uz sva ograničenja za generalizaciju zaključaka, zbog malog uzorka stabala u kulturi, može se ipak zaključiti da stabla dominantnog položaja i pravilno razvijenih kruna predstavljaju realizirani fenotip zanimljiv za proizvodnju tehničkih sortimenata (slika 5).
Diseño de una red wifi para proporcionar servicios de una ciudad digital para Tul´can
Authors: Hidalgo Guijarro Jairo Vladimir
Published: April 2019

El avance y la convergencia de las Tecnologías de la Información y Comunicación (TIC´s), brindan nuevas y modernas formas de envío y recepción de datos (audio, voz y video) a nivel local y mundial en fracciones de segundos; permitiendo que las personas y empresas busquen estar permanentemente comunicados a través de estos medios. Los gobiernos locales (Municipios, Prefecturas, Juntas Parroquiales) juegan un rol muy importante en facilitar conectividad y medios de acceso hacia el desarrollo digital de la  ciudadanía. Se inicia con un análisis exploratorio sobre la utilización de los servicios digitales por parte los ciudadanos de Tulcán como de la infraestructura tecnológica por la cual se acceden a los mismos; se complementa con un estudio técnico financiero para el diseño e implementación de una red de voz y datos a nivel de transporte, distribución y acceso, altamente administrable, escalable y flexible que permitan soportar los servicios de una ciudad digital y de las múltiples ventajas que encontramos a través del Internet, apegada a las normativas establecidas por la IEEE(Institute of Electrical Engineers), protocolos y especificaciones técnicas para su ejecución, generando análisis de cobertura inalámbrica para cada uno de los HotSpot que van a ser ubicados en lugares públicos y abiertos entre ellos (parques, bulevares, estaciones de bus etc) y que están regidos bajo el estándar 802.11n. A través del presente trabajo se plantea que las personas y las instituciones experimenten los cambios tecnológicos que se producen a nivel mundial avanzando Tulcán de una ciudad digital a una ciudad inteligente.
Metodología de la investigación científica para proyectos investigativos con enfoque cuantitativo en turismo
Authors: Enríquez Montenegro César Armando
Published: April 2019

El Reglamento de Régimen Académico aprobado por el Pleno del Consejo de Educación Superior mediante resolución RPC-SE-13-N°051 del 2013 del veintiuno de noviembre de dos mil trece y publicado en la Gaceta Oficial del Consejo de Educación Superior a los veinte y ocho  días del mes de noviembre del dos mil trece hace hincapié en varios de sus artículos a la investigación científica. Ante la situación planteada las Instituciones de Educación Superior (IES), han tenido que reestructurar sus reglamentos internos particularmente el referente a trabajos de titulación los cuales tuvieron diferentes denominaciones, pues dependía de la IES. Hechas las consideraciones anteriores e independientemente del tipo de trabajo que tenga que realizar el estudiante para obtener su titulación, requiere de metodología para la investigación científica. En este propósito las metodologías cambian según el docente/tutor/asesor de turno, ya que interpreta y aplica su criterio personal/ profesional/experiencial. Entonces, de los planteamientos anteriores se deduce que el estudiante termina haciendo lo que el docente/tutor/ asesor quiere, más no lo que el estudiante desea. Con esta finalidad el presente trabajo se presenta como una herramienta que facilita el trabajo estudiantil respecto a su trabajo final de grado. Pues aquí se detallan algunos tips referentes a metodología de investigación científica para las carreras de turismo que permiten hacer el trabajo muy fácil y operativo.
La elasticidad como determinante del consumo del microcrédito
Authors: Chico frias Ángel Enrique , Santamaría Freire Edwin Javier , Herrera Herrera José Bernardo , Villacís Morales Juan José
Published: April 2019

El microcrédito fue un producto creado con fines sociales para personas que no tienen acceso   al capital a través de canales tradicionales, pero su precio de mercado puede convertirse en un limitante para aquellos a quienes se pretende ayudar. El objetivo de la presente investigación fue: determinar la elasticidad precio del microcrédito, se consideró como aporte la variación en los montos demandados de crédito frente al precio de mercado (tasa de interés). En el análisis del coeficiente “r” se observa una relación indirecta, de esta manera hay tendencia estadística a la elasticidad del monto del microcrédito en relación a la tasa de interés del producto financiero. Como resultado del estudio se obtuvo que el precio del mismo al incrementarse afecto de manera drástica a su demanda. El resultado en la investigación realizada mostró un valor superior a 1 lo que indicó una demanda elástica para el mercado de microcrédito en la ciudad de Ambato. Un estudio elaborado para el mercado de microcrédito empresarial en Lima, Perú, presentó como resultado 2.25, la cual demostró ser elástica. Se pudo concluir: el microcrédito tiene como sustituto al agiotaje, lo que ocasiona el auge del mismo, al comparar estos dos encontramos que la tasa de interés del microcrédito no es alta, lo que deja abierta una infinidad de posibilidades para este producto, y con el pasar del tiempo se convertirá en el principal tipo de crédito entregado por las instituciones financieras.
Capital social organizacional y el desarrollo territorial Carchi
Authors: Almeida B. Diego Guillermo
Published: April 2019

Las empresas, como organizaciones sociales, conforman el eje central del desarrollo económico y social de una región, y por tanto, se ha convertido en el principal agente que debe evolucionar para sobrevivir en el marco de una intensa competitividad. El capital social como modelo de análisis y planificación del desarrollo regional trata de identificar y generar las redes de relaciones como factor clave, incentivandoloscambiosdeparadigmaparafacilitarelcrecimientoterritorialyorganizacional. Aunque, no es un factor aislado porque depende de políticas, instituciones de apoyo, la fomentación de redes y la investigación como motor de innovación de diferentes productos; complementos que enriquecen el capital social organizacional. La presente investigación se enfocó en determinar la incidencia del Capital social organizacional sobre el desarrollo territorial Carchi, especialmente en aportar con alternativas para potencializar opciones de comercialización y propiciar el crecimiento regional desde la perspectiva del capital organizacional. Los grupos objetos de estudio indican, que políticas de educación, cadenas productivas, Instituciones y organizaciones de apoyo al desarrollo regional; y los minutos que dedican al impulso de redes no son suficientes para lograr alternativas adecuadas de comercialización, limitando a las diferentes organizaciones constituidas por grupos familiares en su mayoría. Todos estos acontecimientos reducen la transformación de determinados insumos en bienes o servicios mediante la aplicación de un procedimiento tecnológico. Por lo tanto Carchi está alejada de ser sector industrial que goza de un gran capital social organizacional, de ahí el escaso desarrollo territorial.
Fiscal Risk Matrix for G20 Countries
Authors: Vladimirovitch Anureev Sergey
Published: April 2019

Risk matrix, as a well know tool for corporate finance, penetrates public finance as a simplified idea in budgetary guides in a small number of leading countries only. At the same time the complexity of socio-economic environment of public finance, needs of public finance manageability and high sovereign debt call for advanced the risk matrix design. The first step of the research is the observation of the leading countries’ matrix examples and articles targeting the same topic to determine the risk matrix structure. The second step involves comprehensive reading of the most transparent countries to create a list of the matrix factors. The factors include key socio-economic events as sources of risks and key budgetary variables changes as types of risks. The third step ranges the matrix elements (cells) by their occurrence in G20 countries based on comprehensive reading of IMF countries’ reports. The research result is a one-page risk matrix with 10x13 key factors and many ranging elements, designed as the compromise between the environment complexity and manageability needs for public finance.
Agroindustrial Complex in the Eastern European Countries in the Context of Sustainable Development
Authors: V. Shashyna Maryna , V. Zakharchenko Oleh , V. Darushyn Oleksandr , M. Buryk Zoriana , I. Shpinkovska Maria
Published: April 2019

The research paper deals with the formation of new scientific solutions concerning evaluation of the development of the agroindustrial complex, its role in ensuring sustainable development of the national economy, identifying problems and developing ways to solve them in the current conditions of the functioning of agrarian production in the countries of Eastern Europe. The research emphasizes the key importance of agrarian production to ensure the food and economic security of Eastern European countries. It has been revealed that the agroindustrial complex plays a significant role in the countries of Eastern Europe, especially as concerns Ukraine, Belarus, Poland, Moldova, Bulgaria and Romania. There are problems with the formation of effective state support of agrarian production in the countries selected for study, especially as regards the countries of Eastern Europe, which are not members of the European Union. The methodology for assessing the development of the agroindustrial complex in Eastern European countries was developed and proposed for use, as well as calculations on its basis were made, which allowed to divide all countries of this region into three groups: countries - outsiders (Ukraine, Moldova, Russia); countries, where the development of agrarian industry is of concern (Belarus, Romania, Bulgaria); countries that need to improve the agrarian sector of the national economy (Hungary, the Czech Republic, Slovakia and Poland). A complex of agrarian production problems was identified for each of the Eastern European countries, and the key ways of their elimination were proposed, which are aimed at: reforming the market of agricultural land; stimulating the development of farms; increasing efficiency of state support of agrarian production; intensification of development and introduction of innovations in the agrarian sector; the transformation of the structure of the agro commodities market, including the optimization of their export and import.
New Method for Determination of Residual Strength Parameters and Critical Damage Value
Authors: Jiang Qiao , Li Jianlin , Wang Yanhai , Luo Zuosen , Li Tao , Zhang Hengbin , Assefa Eleyas , Deng Huafeng
Published: April 2019

Residual strength and critical damage parameters are worthy to evaluate the stability of engineered rock masses. In this paper, new thinking, repeated load test on a single specimen was proposed to measure the residual strength of the rock. And author proposed to modify the critical damage value based on residual constitutive energy. The test results showed that: (1) the residual strength of rock is mainly controlled by the confining pressure, without a clear relationship with the confining pressure and stress path of the initial loading failure. (2) The residual strength parameters of the rock specimens under repeated loading test are consistent with the conventional triaxial test. Most importantly, the proposed method is relatively less dispersion, cheap, reliable, and time-saving. (3) The corrected critical damage value was reasonable. Relevant test methods can provide a useful reference for the determination of residual strength parameters and critical damage value.
Effect of rolling on the fractional recrystallization behaviour of Al-Mg and Al-Mg-Zr alloys
Authors: Kaiser M. S. , Shorowordi K. M. , Rashed H. M. Mamun Al
Published: April 2019

One set of Al–Mg and Al-Mg-Zr alloys are directly cold rolled and other set of those alloys are hot rolled and then cold rolled using a laboratory rolling mill. The effect of rolling on the fractional recrystallization of the alloys has been investigated using the micro-hardness variation. Isothermally annealed samples are also studied using JMAK type analysis to see if there exists any correlation between experimental and JMAK type analysis. From the microstructure, it is observed that the Al-Mg alloy becomes almost fully recrystallized state after annealing at 600°K for 60 minutes. The results also show that recrystallization fraction obtained by the two methods, shows the higher variation in zirconium added Al-Mg alloy as compared to the Al-Mg alloy. The fractional recrystallization of the cold rolled Al-Mg-Zr alloy is significantly lower than that of cold rolled Al-Mg alloy and hot and colled rolled Al-Mg-Zr, owing to the presence of fine Al3Zr precipitates. These metastable L12 Al3Zr precipitates are thermally stable at high annealing temperatures.
Approved health claims for amino acids in/as food supplements
Authors: Krasniqi Ermira , Boshnjaku Arben , Petrusevska Tozi Lidija
Published: April 2019

Food supplements in the European Union (EU) were initially regulated by Directive 2002/46/EC, whereas in 2006, EU adopted the new Regulation on nutrition and health claims made on food – Regulation 1924/2006. Meanwhile, in the United States of America (USA), dietary supplement is defined by the congress of Dietary Supplement Health and Education Act (DSHEA, 1994). Food supplements can be beneficial to the health of consumers, but scientific reviews of the existing data should be made by competent authorities. In Europe, a scientific review is made by European Food and Safety Authority (EFSA), the Panel of Dietetic Products, Nutrition and Allergies (NDA Panel). Amino-acids have been the object of many scientific studies, with many of them showing their implication in health. Amino-acids carry out a big role in many body functions, cells structure, transport and storage of nutrition, leading us to the main aim of this article that is providing data related to amino-acids implication in health benefits, specifically health claims of Arginine (Erection, vascular system, muscle integrity and hematopoesis immune system function, spermatogenesis), Glutamine (intestinal health, supporting glycogen replenishment, increasing cell swelling, immune health, abundance in the body, muscle function), Lysine (cardiovascular system, increase metabolism, bones, body tissue, immune system function). Nevertheless, they don`t take their credit yet and are not properly recognized in medical sciences in Europe, since the health claims of food containing amino-acids are still considered to be not established in terms of cause and effect relationship.
The influence of comorbid factors in surviving of patients with severe form of seasonal influenza
Authors: Cvetanovska Marija , Milenkovik Zvonko , Grozdanovski Krsto , Kirova Uroshevik Valerija , Cvetanovski Vlatko
Published: April 2019

Elderly patients and patients with different comorbid conditions are at a higher risk of developing severe clinical course and lethal influenza outcome. The aim of this study was to define comorbid conditions in patients with a severe form of seasonal influenza, and to define their influence on lethal outcome. The study was a prospective, group comparison and was conducted at the University Clinic for Infectious Diseases in Skopje, Macedonia, during the period of January 01, 2012 to January 01, 2015. The study included 87 adult patients with a severe form of seasonal influenza, who were further categorized in to a group of either survived patients (n=75) and a group of deceased patients (n=12). Demographic parameters of the patients, as well as any comorbid medical conditions, such as cardiovascular disease, chronic lung disease, neurological diseases, weakened immune system, endocrine disorders, kidney disorders, liver disorders, pregnancy, overweight were noted upon admission in the hospital. The variables of the univariate analysis that showed a significant difference in terms of
the outcome were used for creating multivariate logistic and regression analysis to identify independent predictors for lethal outcome in severe cases of influenza. Multivariate analysis identified cardiovascular comorbid diseases (p=0.014), as an independent predictor of the outcome in patients with severe form of seasonal influenza. Influenza patients with cardiovascular diseases had 2.024 times greater risk
of death from influenza in comparison to patients having influenza without a history of such a disease (OR=2.024 95% CI 1.842-17.337).
El andar de las creencias. Algunos determinantes de la movilidad religiosa en América Latina
Authors: Camargo Martínez Abbdel ,   Consejo Nacional de Ciencia y Tecnología (Conacyt), El Colegio de la Frontera Sur (Ecosur), México
Published: April 2019

El objetivo de este trabajo es mostrar algunas causas del incremento de nuevas expresiones religiosas en Latinoamérica, mismas que pueden ser ajenas o complementarias al catolicismo romano, religión histórica y dominante en la región. A través de un análisis procesual, se observa cómo se ha establecido un proceso de conversión y movilidad religiosa en la región con implicaciones en la estructura social de los países, su identidad comunitaria, la definición de su historia y el campo confesional que se adecua a las necesidades actuales de los habitantes de los países de la región.
Effect of a Worksite Walking Competition on Health-Related Quality
of Life Among University Employees
Authors: Orozco Breanna , Leininger Lisa , Contente Kendra
Published: April 2019

Worksite health promotion programs (WHPPs) aim to improve the health and wellness of employees in an effort to improve health related quality of life (HRQOL). The effect of exercise on improving HRQOL is well documented among clinical populations. However, few studies have examined the effect of WHPPs on HRQOL. The purpose of this study was to investigate the effect of a six-week “Workplace Walk-Off Competition” (WWC) on HRQOL among university employees. One hundred and nine university employees were included in this study (WWC group: n=47, Control group: n=62). All study participants completed the Short Form 12 Question, Version 2 (SF-12v2), a HRQOL questionnaire, before and after the WWC. The SF-12v2 questionnaire determines HRQOL based on two components and reports scores for a physical component summary (PCS) score and a mental component summary (MCS) score. A two-way repeated measures ANOVA was performed on PCS and MCS scores, followed by dependent t-tests for each group. There was no significant difference in PCS or MCS scores between the groups. Further, there were no statistically significant changes in PCS or MCS scores (p>.05) among either group, following the six-week WWC. Although much research deems WHPPs effective for improving many health indicators, this short-term program was not effective in improving PCS and MCS components of HRQOL.

KEYWORDS: Quality of Life, Health Promotion, Walking Competition, University Employees
Direct and Indirect Effects of Pseudoephedrine on the Intrinsic Conduction System of the Embryonic Chicken Heart
Authors: Gonzalez Samely , Afzal Fatima , McLaughlin Jacqueline
Published: April 2019

Pseudoephedrine (PSE) is an over the counter (OTC) medication used to temporarily relieve nasal congestion, hay fever or other upper respiratory allergies by shrinking blood vessels in the nasal passages. Aside from its vasoconstriction properties it is also known to elevate heart rate, and blood pressure, thus being a sympathomimetic drug. There are two hypotheses on how this drug increases heart rate (HR): (1) a direct mechanism wherein PSE works by binding to adrenergic receptors in the heart’s intrinsic conduction system; and, (2) an indirect mechanism wherein PSE causes the release of norepinephrine from sympathetic nerves to activate adrenergic receptors. This research utilized the chick embryonic heart as a model system to examine the chronotropic effects and mechanisms of PSE on the developing vertebrate heart. Research suggests that this drug has both direct and indirect effects, and induces dangerous heart arrhythmias such as atrial flutter, in high doses.

KEYWORDS: Pseudophedrine, Sympathomimetic Drugs, Pseudophedrine and Pregnancy, Pseudophedrine and Norepinephrine, Pseudophedrine Related Arrhythmias, Over–the-counter Drugs; Chick Heart Development
Effect of Native American Bean-corn Biculture Planting on Free-living Bacterial Abundance and Plant Growth
Authors: Miller Heather , Fiene Justin , Marsh Tamara
Published: April 2019

Native American tribes with bountiful harvests. Today it is widely recognized that this associated intercropping system derives much of its success from symbiotic bacteria (e.g. Rhizobium). These bacteria colonize the roots of leguminous plants, allowing them to fix atmospheric nitrogen into ammonia. However, the effect of this intercropping practice on the microbial community, independent of the effect of the symbiotic nitrogen-fixing bacteria, is not well understood. Therefore, a study was designed to model the effects of simultaneously intercropping bean and corn on the abundance of aerobic heterotrophic, free-living nitrogen-fixing, and symbiotic nitrogen-fixing bacteria, as well as plant growth and fecundity markers. In parallel, the benefits mediated by rhizobia were evaluated by inoculating a duplicate set of treatments with N-Dure, a rhizobia-containing inoculum. Native American varieties of pole-bean (Phaseolus vulgaris L.) and corn (Zea mays mays L.) were planted in monoculture and biculture treatments. All cultivations were maintained under greenhouse conditions for 52 days with daily watering and no additional fertilizer or microbial amendments. Although a significant increase in weight per plant was noted for the inoculated biculture when compared to either the inoculated bean or corn monocultures (p ≤ 0.05), the abundance of heterotrophic and free-living nitrogen-fixing bacteria did not show a significant change from the related controls, with or without inoculation. However, symbiotic nitrogen-fixing bacteria, as measured by root nodulation, increased significantly (p ≤ 0.05) for the inoculated biculture and single planting. Thus, these data confirm that corn benefited from this associated intercropping system as shown by an increase in plant biomass that can be attributed to Rhizobium. However, neither the legume-bacteria symbiotic relationship nor the increase in plant biodiversity resulting from this intercropping practice appears to have had significant effects on the abundance of the two common soil-associated bacterial groups evaluated, though further research would be necessary to fully assess the changes to heterotrophic bacterial diversity at the species level.
KEYWORDS: Three Sisters; Nitrogen-fixing Bacteria; Inoculation with Rhizobia; Plant Growth Promoting Bacteria; Soil Microbial Biota; Corn and Bean Simultaneous Planting.
Methods for Essential Tremor Assessment: Acoustic Tremor Monitoring (ATM) and Rhythmic Spirals (RS) Methods
Authors: Hart Emily , Chow Caroline , Stan Patricia , King Daniel
Published: April 2019

There are several techniques of monitoring essential tremors, but there is not yet a standard method developed for the field. A quantitative way to track effects of medication and/or lifestyle treatment would be beneficial for future research in prevention or regression of essential tremors. The two methods evaluated are acoustic tremor monitoring (ATM) and rhythmic spirals (RS). The novel ATM measurement quantifies frequency and amplitude quickly and cost effectively. The tremor patient holds a microphone close to a speaker playing a single frequency tone. The Doppler Effect caused by the shaking microphone distorts the sound recording, and the encoded tremor information can be retrieved by using the Fast-Fourier Transform algorithm. The second method, RS, can be used by patients at home to measure frequency. The RS method is similar to the classic Archimedes spirals, but uses a different form and is timed which allows for the calculation of tremor frequency. The RS and ATM methods produce statistically similar frequency measurements, although ATM has greater precision.
KEYWORDS: Essential Tremors, Archimedes Spiral, Accelerometry, Spiral Analysis, Acoustic Tremor Monitoring, Rhythmic Spirals.
A New Potent Anti-cancer Corosolic Ester Identified from the Super Miracle Plant Hippophae rhamnoides (Sea buckthorn)
Authors: Ali Irfan , Zahra Noor-ul-Ain , R Reazuddin , Sharif Huma , M Mudassar , Bhatti Huma Aslam
Published: April 2019

Hippophae rhamnoides L, commonly called Sea buckthorn, is native to Asia and Europe and and known for its nutritional and medicinal values. The aim of the present study was to investigate the anti-cancer constituents of H. rhamnoides. Among the three isolated compounds namely: 1-(2-hydroxynaphthalen-1-yl) ethan-1-one (1), Oleanolic acid (2), and Hippocorosolate (3), compound 3 was a new corosolic ester derivative. The isolated compounds (2 and 3) displayed anticancer activity against lung (NCI-H460) and breast (MCF-7) cancer cell lines with IC50 values of ~3 µM and ~6 µM, respectively. However, compound 1 was active only against breast cancer cells with IC50 value of ~43 µM. These compounds displayed only weak interactions with minor groove of DNA in DNA-ligand conformational studies and therefore, structural DNA damage was not noted in electrophoretic mobility experiments. It was concluded that new compound 2 possessed more potent anticancer activity than that of known compound 3 against lung cancer cell line.
EFEKTIVITAS EKSTRAK BUAH DELIMA (Punica granatum) TERHADAP PENINGKATAN KADAR KALSIUM DALAM DARAH TIKUS PUTIH (Rattus norvegicus)
Authors: Variety Indy , Edrizal Edrizal , Desnita Eka
Published: April 2019

Pomegranate (Punica granatum) has been known to contain many active mineral ingredient such as iron, magnesium, potassium, zinc, phosphorus, including calcium. Calcium levels in this fruit are 10mg in every 100g it is almost equivalent to the levels of vitamin C in this fruit. The research aims to know the benefit and effectiveness of the extract pomegranate (Punica granatum) to increase calcium blood level of the white rats (Rattus n orvegicus). This study used an experimental laboratory method. The pomegranate extract (Punica granatum) made in the Kopertis Laboratory X. Dose of pomegranate (Punica granatum) made in pharmaceutical laboratory Andalas University, Padang are 2mg, 4 mg, 8mg, 16mg and negative control without giving any extract. The results of this study showed that the higher the dose given, also increase the calcium blood level. Compared with the negative control group, the pomegranate extract (Punica granatum) at doses of 2 mg, 4 mg, 8 mg resulted in calcium blood levels are lower than the negative control. While on the 16mg dose showed elevated the calcium blood levels compared to the negative control group. This shows that the smallest dose of pomegranate extract that is able to increase the calcium blood levels at 16mg dose. Anova test showed a significant result of the observation value (p<0.05) in increase a calcium blood levels of white rats (Rattus Norvegicus). Conclusion pomegranate extract (Punica Granatum) has an effect in increasing the calcium blood level but not significant.
EFEKTIVITAS PEMBERSIH GIGI TIRUAN DENGAN REBUSAN DAUN SIRIH 25% DAN 50% TERHADAP PERTUMBUHAN Candida albicans PADA LEMPENG RESIN AKRILIK POLIMERISASI PANAS
Authors: Rahayu Indah , Fadriyanti Okmes , Edrizal Edrizal
Published: April 2019

Candida albicans merupakan bagian flora normal rongga mulut pada 30-50% populasi. Organisme ini dapat menimbulkan infeksi oportunis di rongga mulut jika terdapat faktor-faktor predisposisi yang mendukung. Pasien pengguna gigi tiruan disarankan membersihkan gigi tiruan dengan larutan pembersih. Daun sirih (Familia piperaceae) memiliki nama binomial Piper betle Linn, merupakan salah satu tanaman yang diketahui berkhasiat sebagai antiseptik dan desinfektan. Penelitian ini bertujuan untuk mengetahui efektivitas larutan tablet pembersih gigi tiruan dan rebusan daun sirih terhadap pertumbuhan Candida albicans pada lempeng resin akrilik polimerisasi panas. Jenis penelitian yang digunakan adalah eksperimen dengan desain post test control group design. Sampel penelitian dikelompokkan dalam 3 kelompok perlakuan. Hasil uji statistik diperoleh p=0,000 yang berarti diketahui adanya perbedaan yang signifikan (p<0,05) pada masing-masing kelompok sampel. Rebusan daun sirih 50% lebih efektif dalam menghambat pertumbuhan Candida albicans pada lempeng resin akrilik polimerisasi panas.
INDUKSI RE-EPITELISASI PADA PROSES PENYEMBUHAN LUKA GINGIVA OLEH APLIKASI TOPIKAL EKSTRAK DAUN SAGE (Salvia officinalis L.) KONSENTRASI 50% (Kajian In Vivo Pada Tikus Sprague Dawley)
Authors: Alhasyimi Ananto Ali
Published: April 2019

Luka pada gingiva sering terjadi baik disengaja maupun tidak disengaja. Luka adalah rusaknya kesatuan atau komponen jaringan. Penyembuhan luka merupakan reaksi jaringan yang rusak untuk mengembalikan fungsi jaringan tersebut. Salah satu proses yang terlibat dalam penyembuhan luka adalah re-epitelisasi. Sage (Salvia officinalis L.) merupakan tanaman yang berpotensi untuk penyembuhan luka. Penelitian ini bertujuan untuk mengetahui efek ekstrak daun sage konsentrasi 50% secara topikal terhadap reepitelisasi pada proses penyembuhan luka gingiva labial tikus Sprague dawley. Dua puluh empat ekor tikus Sprague dawley dibagi dalam 2 kelompok, perlakuan dan kontrol. Perlukaan pada gingiva labial tikus dibuat dengan menggunakan punch biopsy diameter 2,5 mm. Luka pada kelompok perlakuan diberi ekstrak daun sage konsentrasi 50% dan pada kelompok kontrol diaplikasikan iod gliserin 2 kali sehari selama 1 menit secara topikal. Tiga ekor tikus dari masing-masing kelompok dikorbankan pada 1, 3, 5 dan 7 hari setelah perlukaan. Jaringan luka diambil, diproses secara histologis dan dilakukan pengecatan dengan menggunakan metode Hematoksilin Eosin (HE). Pengukuran ketebalan jaringan epitel gingiva dilakukan menggunakan mikrometer okuler digital. Data ketebalan epitel dianalisis menggunakan paired samples ttest. Hasil pengukuran ketebalan jaringan epitel gingiva dengan paired samples t-test menunjukkan perbedaan yang signifikan antara kelompok perlakuan dan kelompok kontrol pada 3, 5 dan 7 hari setelah perlukaan. Kesimpulan dari penelitian ini adalah pemberian ekstrak daun sage konsentrasi 50% dapat menginduksi re-epitelisasi pada proses penyembuhan luka gingiva labial tikus Sprague dawley serta lebih efektif dibandingkan iod gliserin.
PEMERIKSAAN LENGKAP KEBIASAAN BURUK MENGISAP IBU JARI (THUMB SUCKING) (LAPORAN KASUS)
Authors: Elianora Dewi
Published: April 2019

Menghisap ibu jari merupakan kebiasaan yang menyenangkan bagi anak. Kebiasaan tersebut apabila berlangsung dalam jangka panjang dapat menyebabkan terjadinya maloklusi serta membutuhkan pengobatan yang mahal untuk memperbaikinya. Bad oral habit wajar terjadi pada usia kurang dari enam tahun, namun dapat berlanjut pada usia lebih dari enam tahun yang dapat menyebabkan kelainan pada struktur dento-fasial. Laporan kasus seorang anak umur 9 tahun 6 bulan mempunyai kebiasaan mengisap ibu jari (thumb sucking) sejak kecil dan kebiasaan tersebut berlanjut sampai sekarang. Anak tersebut tidak mempunyai riwayat penyakit sistemik. Pemeriksaan intra oral gigi anterior rahang atas terlihat proklinasi. Penanganan yang dilakukan pada anak tersebut adalah dilakukannya pemeriksaan lengkap diikuti dengan pemakaian alat orto trainer. Kesimpulan; pemeriksaan lengkap pada kasus kebiasaan buruk (bad oral habit) menghisap ibu jari perlu dilakukan, mengingat akibat yang dapat ditimbulkannya. Pemeriksaan lengkap perlu dilakukan, untuk melihat sejauh mana nantinya hasil perawatan yang kita lakukan.
PERAWATAN INTERNAL BLEACHING PADA INSISIVUS SENTRAL KIRI ATAS PASKA PERAWATAN ENDODONTIC PADA PASIEN DENGAN RIWAYAT TRAUMA
Authors: Mona Deli
Published: April 2019

Pendahuluan: Internal Bleaching adalah salah satu perawatan yang bertujuan untuk meningkatkan warna pada gigi non vital. Perubahan warna pada gigi setelah perawatan endodontik merupakan hal yang menjadi perhatian oleh pasien dan dokter gigi. Pemutihan gigi setelah perawatan endodontik adalah sesuatu yang penting untuk mengembalikan warna pada gigi sebelum dilakukan perawatan restoratif permanen. Tujuan: Menjelaskan perawatan Internal Bleaching pada pasien yang memiliki riwayat trauma. Laporan Kasus: Pasien wanita dengan umur 19 tahun datang ke klinik RSGMP dengan keluhan gigi insisivus sentralis atas sebelah kiri telah mengalami perubahan warna. Pasien memiliki riwayat trauma pada gigi anterior yang mulai mengalami perubahan warna sejak dua tahun yang lalu. Pada gambaran radiografi terlihat bahwa gigi 21 sudah dilakukan perawatan saluran akar. Perawatan: Perawatan saluran akar sudah dilakukan pada gigi 21 yang mengalami perubahan warna. Perawatan Internal Bleaching dilakukan untuk mengembalikan warna pada gigi. Kesimpulan: Perawatan Internal Bleaching dapat mengembalikan estetik pada gigi non vital yang telah mengalami perubahan warna akibat riwayat trauma.
PENGARUH EKSTRAK KUBIS (Brassica oleracea L. var. capitata L.) DALAM PEMBENTUKAN ZONA HAMBAT TERHADAP PERTUMBUHAN BAKTERI Streptococcus mutans PADA KARIES (In Vitro)
Authors: Nisaummahmudah Nisaummahmudah , Kornialia Kornialia , Nurhamidah Nurhamidah
Published: April 2019

Gigi dan mulut merupakan investasi utama bagi kesehatan. Apabila kesehatan gigi dan mulut sering diabaikan, maka akan menimbulkan masalah pada gigi dan mulut maupun kesehatan secara umum. Masalah kesehatan gigi dan mulut yang banyak terjadi di masyarakat adalah karies gigi. Streptococcus mutans merupakan salah satu mikroorganisme spesifik penyebab karies gigi. Pencegahan karies dapat dilakukan dengan penggunaan bahan antimikroba yang berasal dari alam seperti kubis. Kubis (Brassica oleracea L.var capitata L.) merupakan salah satu hasil bumi Indonesia yang memiliki sifat antibakteri. Penelitian ini bertujuan untuk mengetahui pengaruh ekstrak kubis dalam pembentukan zona hambat terhadap pertumbuhan bakteri Streptococcus mutans pada karies (invitro). Metode penelitian yang digunakan adalah eksperimental laboratorium. Penelitian dilakukan di Laboratorium Kimia Kopertis wilayah X Padang, Sumatera Barat. Konsentrasi ekstrak kubis yang digunakan adalah 15%, 20%, 25% dan 30%. Pengujian antibakteri dilakukan dengan metode disc diffusion dengan mengukur zona hambat yang mengindikasikan adanya hambatan pertumbuhan bakteri Streptococcus mutans oleh ekstrak kubis. Hasil penelitian diuji menggunakan uji Anova, diketahui rerata diameter zona hambat paling besar adalah pada konsentrasi 30% (16,69 mm). Nilai p-value dari hasil tes uji Anova p-value
POTENSI REMINERALISASI PADA PASTA GIGI BERFLORIDA DAN TIDAK BERFLORIDA
Authors: Zulsantritus Zulsantritus , Edrizal Edrizal , Busman Busman
Published: April 2019

Pasta gigi berflorida dan tidak berflorida merupakan bahan yang dapat memperkuat dan meremineralisasi gigi serta membantu mencegah karies gigi. Peneliti tertarik melakukan penelitian tentang aplikasi dari pasta gigi berflorida dan tidak berflorida untuk mendapatkan potensi perbandingan dalam remineralisasi gigi. Jenis penelitian ini adalah eksperimental laboratori dengan menggunakan penelitian analytic experimental pretest and postest design. Sampel yang digunakan dalam penelitian ini adalah gigi premolar yang telah diekstraksi dengan teknik selected sampling. Penelitian ini terdiri dari 2 perlakuan. Dimana pada perlakuan kelompok 1 menggunakan 15 gigi dilakukan perendaman pada larutan saliva buatan dengan pasta gigi berflorida dan pada perlakuan kelompok 2 menggunakan 15 gigi dilakukan perendaman pada larutan saliva buatan dengan pasta gigi tidak berflorida. Hasil penelitian menunjukan berat gigi sebelum dan sesudah dilakukan perendaman pada larutan saliva buatan dengan pasta gigi berflorida dan tidak berflorida 1, 2, 3, 4 dan 5 menunjukkan perbedaan yang tidak bermakna (p>0,05) antara berat gigi sebelum dan setelah dilakukan perendaman. Berdasarkan hasil diatas dapat disimpulkan bahwa semakin lama waktu perendaman gigi didalam larutan saliva buatan dengan pasta gigi berflorida dan tidak berflorida maka semakin tingginya penambahan berat gigi.
PERBANDINGAN EFEKTIVITAS DAYA HAMBAT DADIH DENGAN YOGURT TERHADAP PERTUMBUHAN BAKTERI STREPTOCOCCUS MUTAN
Authors: Sandi Indah Maydila , Bachtiar Hafni , Hidayati Hidayati
Published: April 2019

Dadih and yoghurt are functional food products that gives health benefits because it contains probiotic bacteria. Lactic acid bacteria in probiotic foods can produce antimicrobial lsubstrates, organicacids, ethanol, hydrogenperoxide, andbacteriocins. Streptococcus mutans is a gram-positive coccibacteria that became a major factor of caries. The aim of this reseacrh is to determine the effective ness differences between dadih and yoghurt to inhibit growth of Streptococcus mutans. This research is a laboratory experimental with well agar diffusion method on blood agar as a medium to see a inhibition zone by antimicrobial activity. This research used 36 well-agar which contains 50 μl of dadih and 50 μl yoghurt respectively. Result showed that mean rank of dadih’s inhibition zone is 12,75 mean while yoghurt’s inhibition zone is 24,25. Mann-Whitney test showed that p value=0,001. There was a significant inhibition effect between dadih and yoghurt on growth of Streptococcus mutans.It concluded that dadih and yoghurt have an antimicrobial effect to inhibit growth of Streptococcus mutans. Daily consumption of probiotic foods gives benefit for oral health.
IMPACT OF PEEL COLORATION ON INTERNAL QUALITY OF KINNOW MANDARIN (Citrus nobilis Lour x Citrus deliciosa Tenora) AT EARLY RIPENING STAGE
Authors: Nawaz Rab , Abbasi Nadeem Akhtar , Hafiz Ishfaq Ahmed , Khan Zeeshan , Khan Muhammad Riaz , Khalid Azeem
Published: April 2019

At earlier maturation, Kinnow mandarin color-break fruits were analyzed for internal quality. Ten fruits were harvested from dark green to fully red or yellow colored at field on visual observation and arranged in order of dark green to deep red or yellow through Chroma meter after being numbered as 1 to 10. Triplicated determinations of all samples were analyzed. In red colored fruits juice, a decreasing trend of titratable acidity, ascorbic acid and TDS was found with increasing pattern of sugars, TSS and pH. Similarly in peel, less chlorophyll and more carotenoids were recorded in red colored fruits. Total phenolic contents in juice remained constant with declining trend in peel from green to red colored fruits. In juice both flavonoids and flavonols were constant while in peel flavonols increase was noted in red colored fruits. Total anthocyanins showed an increasing trend in red colored fruit for both, the peel and juice. Antioxidant activity was increased in juice and decreased in peel for red colored fruits. Nutritional values of green color peel fruits are alike those of red colored, but less sugars, reduced sweetness were duly noted regarding their domestic consumers acceptance. Green color fruits have more ascorbic acid, polyphenols and reducing sugars are equally valuable like red colored produce, which is especially good for the purpose of export
Kalman-Filter-Based Tension Control Design for Industrial Roll-to-Roll System
Authors: Hwang Hyeongjin , Lee Jehwon , Eum Sangjune , Nam Kanghyun
Published: April 2019

This paper presents a robust and precise tension control method for a roll-to-roll (R2R) system. In R2R processing, robust and precise tension control is very important because improper web tension control leads to deterioration in the quality of web material. However, tension control is not easy because the R2R system has a model variation in which the inertia of the web in roll form is changed and external disturbances caused by web slip and crumpled web. Therefore, a disturbance observer (DOB) was proposed to achieve robustness against model variations and external disturbances. DOB is a robust control method widely used in various fields because of its simple structure and excellent performance. Moreover, the web passes through various process steps to achieve the finished product in the R2R process. Particularly, it is important to track the tension when magnitude of the tension varies during process. Feedforward (FF) controller was applied to minimize the tracking error in the transient section where tension changes. Moreover, the signal processing of a sensor using the Kalman filter (KF) in the R2R system greatly improved control performance. Finally, the effectiveness of the proposed control scheme is discussed using experimental results.
The ‘Art World’ of the Auction Houses: The Role of Professional Experts
Authors: Brodie Neil
Published: April 2019

Auction sales of unprovenanced, likely stolen, cultural objects continue to generate controversy. But while auction houses can appear to be relatively passive agents in the sales process, providing a platform for bringing together buyers and sellers, in reality their business practices are more complex. With reference to three recent disputed auctions of cultural objects, this paper explores in more detail the ‘art world’ of auction house business practices, exploring in particular the central role of professional experts in supporting auction sales and the legal and ethical implications of their involvement.
Analysis and Adaptation of Q-Learning Algorithm to Expert Controls of a Solar Domestic Hot Water System
Authors: Bettoni Davide , Soppelsa Anton , Fedrizzi Roberto , del Toro Matamoros Raul Mario
Published: April 2019

This paper discusses the development of a coupled Q-learning/fuzzy control algorithm to be applied to the control of solar domestic hot water systems. The controller brings the benefit of showing performance in line with the best reference controllers without the need for devoting time to modelling and simulations to tune its parameters before deployment. The performance of the proposed control algorithm was analysed in detail concerning the input membership function defining the fuzzy controller. The algorithm was compared to four standard reference control cases using three performance figures: the seasonal performance factor of the solar collectors, the seasonal performance factor of the system and the number of on/off cycles of the primary circulator. The work shows that the reinforced learning controller can find the best performing fuzzy controller within a family of controllers. It also shows how to increase the speed of the learning process by loading the controller with partial pre-existing information. The new controller performed significantly better than the best reference case with regard to the collectors’ performance factor (between 15% and 115%), and at the same time, to the number of on/off cycles of the primary circulator (1.2 per day down from 30 per day). Regarding the domestic hot water performance factor, the new controller performed about 11% worse than the best reference controller but greatly improved its on/off cycle figure (425 from 11,046). The decrease in performance was due to the choice of reward function, which was not selected for that purpose and it was blind to some of the factors influencing the system performance factor.