bluuebunny/crossref_metadata_2025_split huggingface dataset:
SINTESIS TURUNAN POLIEUGENOL SEBAGAI CARRIER BAGI RECOVERY LOGAM BERAT DENGAN TEKNIK MEMBRAN CAIR
Authors: Djunaidi M. Cholid , Lusiana Retno A. , Wibawa Pratama J. , Siswanta Dwi , Jumina Jumina 
Published: November 2017

Telah dilakukan sintesis senyawa asam poliuegenoksi asetat dan polieugenoksi asetil piridil karbinolat (suatu turunan polieugenoksi asetat dengan gugus aktif N) dari eugenol. Hasil sintesis digunakan sebagai ekstraktan logam berat dengan metode transport membran cair. Analisis struktur polimer yang terbentuk dilakukan dengan spektrometer infra merah, 1H NMR, KLT, dan uji kelarutan. Penentuan berat molekul relatif polimer menggunakan metode viscometer Ubbelohde. Transport logam dilakukan dengan Membran Cair Ruah (BLM) menggunakan sel gelas tipe U terhadap campuran logam Cu (II), Fe (III), Ni (II), Cd (II), Zn (II), dan Cr (III) kesemuanya dalam bentuk garam klorida. Transport dilakukan pada fasa umpan dan penerima HCl, konsentrasi logam masing-masing 50 ppm. Penentuan konsentrasi ion logam di fasa penerima sebelum dan sesudah transport dilakukan dengan spectrofotometer serapan atom, sedangkan perubahan pH yang menyertai diukur dengan pH meter. Hasil sintesis polieugenoksi asetat dan polieugenoksi asetil piridil karbinolat berupa serbuk amorf berwarna merah bata sampai coklat tua, dengan berat molekul 5.980.854 gram/mol dan 5.602.282 gram/mol. Hasil transport terhadap campuran logam menunjukkan polieugenoksi asetat dan polieugenoksi asetil piridil karbinolat dengan gugus N hasil sintesis mampu mentransferkan campuran logam ke fasa penerima dengan urutan logam hard (Cr (III) dan Fe (III)) > logam borderline (Ni (II), Zn (II) dan Cu (II)), logam soft Cd (II).
KARAKTERISTIK DAN PENDEKATAN KINETIKA GLOBAL PADA PIROLISIS LAMBAT SAMPAH KOTA TERSELEKSI
Authors: Himawanto Dwi Aries , Indarto Indarto , Saptoadi Harwin , Rohmat Tri Agung 
Published: November 2017

CHARACTERISTICS AND GLOBAL KINETIC APPROACH ON THE SLOW PYROLYSIS OF SELECTED MUNICIPAL WASTE. Municipal Solid Wastes (MSW) has a great potential as a clean renewable feedstock for producing modern energy carriers through thermochemical conversion processes called pyrolysis. However, despite their enormous potential as energy sources, their thermal characteristics are still not well known. In the present study, the pyrolysis characteristics and pyrolysis kinetics of MSW single components (i.e bamboo wastes, banana leaves wastes, wrapping wastes, and styrofoam wastes) and their mixture were investigated. The 20 grams sample were heated in a furnace under nitrogen environment from ambient temperature to 400°C at a heating rate of 10°C/min and held for 30 min. The results of the research showed that bamboo wastes and banana leaves wastes could be catogorized as low stability organics, while wrapping wastes could be catagorized as polymer mixture materials, while styrofoam wastes could be catagorized as plastic materials. The research also revealed that the global kinetic method could be used to predict the MSW single component activation energy. Sampah kota mempunyai potensi untuk dikembangkan menjadi sumber energi alternatif terbarukan melalui proses pirolisis. Namun demikian, pemahaman mengenai karakteristik termal proses pirolisis dari sampah kota masih belum banyak diketahui. Dalam penelitian ini, dilakukan analisa thermogravimetry dari komponen-komponen tunggal sampah kota yang meliputi sampah bambu, sampah daun, sampah bahan pengemas, dan sampah styrofoam maupun campuran antara komponen-komponen tersebut. Penelitian ini dilakukan untuk mendapatkan karakteristik pirolisis komponen-komponen yang diteliti, meliputi profil proses devolatilisasi dan energi kinetik. Penelitian dilakukan dengan menempatkan sampel seberat 20 gram dalam sebuah tungku dan menaikkan temperatur tungku dengan laju pemanasan 10°C/min. Temperatur akhir sampel dipertahankan pada 400°C selama 30 menit. Untuk menjamin terjadinya proses pirolisis, maka dialirkan nitrogen dengan laju 100 ml/menit ke dalam reaktor. Hasil penelitian menunjukkan bahwa sampah bambu dan sampah daun pisang dapat dikategorikan kedalam bahan organik dengan kestabila rendah. Sampah bahan pengemas cenderung masuk dalam katagori bahan campuran polimer, sedangkan sampah styrofoam dapat dikategorikan ke dalam material plastik. Hasil penelitian juga menunjukkan bahwa metode kinetika global dapat digunakan untuk memprediksi nilai energi aktivasi dari komponen tunggal sampah kota.
A Process for Error Correction for Strength and Conditioning Coaches
Authors: Cushion Emily , Howe Louis , Read Paul , Spence Adam 
Published: November 2017

ABSTRACT
THERE ARE SEVERAL SKILL ACQUISITION STRATEGIES AVAILABLE TO COACHES WHEN CORRECTING A MOVEMENT ERROR. HOWEVER, IT IS NOT ALWAYS CLEAR WHICH STRATEGIES SHOULD BE USED FOR A SITUATION AND IN WHAT ORDER. THIS ARTICLE AIMS TO PROVIDE COACHES WITH A LOGICAL EVIDENCE-BASED PROCESS TO ASSIST THEIR COACHING PRACTICE. IN ADDITION TO A PROPOSED MODEL OF ERROR CORRECTION, EXAMPLES ARE PROVIDED FOR SEVERAL COMMONLY OCCURRING SITUATIONS IN STRENGTH AND CONDITIONING PRACTICE.
Clonidine versus Tramadol for postanesthetic shivering: a randomized clinical trial study
Authors: Morsali Seyedeh Fatemeh , Movasseghi Gholamreza , Kiaee Mehrdad Mesbah , Ghorbanloo Masood , Mohaghegh Mahmood Reza , Morsali Ali , Morsali Mona 
Published: October 2017

Introduction: To compare the effects of oral clonidine and tramadol on shivering caused by spinal anesthesia in patients undergoing transurethral lithotripsy (TUL).
Methods: The present study is a triple-blind clinical trial conducted on 80 elective urologic surgical candidates during 2016-2017 at Tehran Hasheminejad Hospital in Iran. Using the Balanced Block Randomization method, the patients were randomly assigned into two groups (40 patients per group) 90 minutes before performing spinal anesthesia. The first group (group C) received 150 µg of oral clonidine and the second group (group T) received 50 mg of oral tramadol. Body temperature, core body temperature, heart rate, diastolic blood pressure and shivering were recorded for the patients at different time periods, and entered in the SPSS22 software program. The above variables were then statistically analyzed using independent sample T-tests chi-squared tests and Repeated Measure ANOVA.
Results: The results of this study indicated that there was a significant statistical difference (P<0.05) between the clonidine and tramadol treatment groups with regards to some variables, such as average body temperature and average core temperature, at different time periods. However, for other variables, such as heart rate, systolic blood pressure, diastolic blood pressure and shivering, there were no significant statistical differences between the two treatment groups (P>0.05).
Conclusion: Clonidine and tramadol treatment groups were only significantly different in terms of body temperature and core temperature. Therefore, it is recommended that other precise randomized clinical trials be performed to ensure the accuracy of the results of this study.

Peer Review Details

Peer review method: Single-Blind (Peer-reviewers: 02) Peer-review policy
Plagiarism software screening?: Yes
Date of Original Submission: 04 September 2017
Date accepted: 30 September 2017
Peer reviewers approved by: Dr. Lili Hami
Editor who approved publication: Dr. Phuc Van Pham
Cultura de prevención para la seguridad y salud en el trabajo en el ámbito colombiano
Authors: Hernández Palma Hugo , Monterrosa Assia Flor , Muñoz Rojas Delvis 
Published: November 2017

En el siguiente artículo se evidencia una reflexión crítica sobre la cultura de prevención en ambientes laborales, como tema de seguridad y salud, con el objetivo de identificar factores de riesgo. Como propuesta transformadora, se realizó un estudio de corte descriptivo, afirmando los derechos de las personas a unos ambientes laborales seguros y se evaluaron las condiciones actuales en las cuales se vienen desarrollando las actividades de trabajo. Estos espacios traen inherentes unas características o factores de riesgos, que son importantes examinar en la actualidad, con la entrada en vigencia del Decreto 1072 de 2015, a nivel nacional.
Utilización de Tuna (opuntia ficus-indica) como coagulante natural en la clarificación de aguas crudas
Authors: Olivero Verbe Rafael Enrique , Aguas Mendoza Yelitza del Rosario , Mercado Martínez Iván Darío , Casas Camargo Diana Paola , Montes Gazabón Luz Elena 
Published: November 2017

In the clarification of the potable water chemicals like aluminum sulphate is use to remove colloidal matter and organic substances, improving the quality of the water. High residual aluminum concentrations in the potable water have implications in the human health, being necessary the alternative coagulants development, environmentally acceptable to replace them. In this investigation the properties that have the cactus Opuntia ficus-indica and alum in the water clarification of the Magdalena River in Magangué, Bolivar province (Colombia), as coagulant were evaluated. Finally, the efficiency that has mucilage extracted of the cactus Opuntia ficus-indica as natural coagulant was shown. In low-turbidity water like this, the agitation speed has an impact on the action clearer because this achieves reach the more dispersed particles increasing the efficiency of the clarification process.
Diseño, simulación y análisis, de sistema solar FV para suministro eléctrico en zonas rurales
Authors: Alvarado Fajardo Andrea Catalina , Carvajal Osorio Hernán 
Published: November 2017

This research demonstrates how an off-grid photovoltaic system could make the most of solar resource at the rural site of the El Cardonal School, Tibaná-Boyacá, Colombia. Basic needs for electricity mainly for food conservancy by refrigeration, might be satisfied in support a nutritional program for poor school children. After solar irradiance was measured at the site, the solar system was designed and modeled with the TRNSYS software, which demonstrated a good performance under specific load characteristics climate conditions and solar resource availability.
Efecto Talbot Unidimensional y Bidimensional
Authors: Villasana Mercado Patricia , González Flores Ana Laura , Codratian Rosu Haret , Gutiérrez Medina Braulio 
Published: November 2017

In this paper, we show some experimental results obtained by us in the summer of 2014 in IPICyT to prove the occurrence of the Talbot effect. This effect is due to the constructive interference which leads to the appearance of clear images at a certain distance behind a periodic object illuminated by a light source. The distance of appearance is known as the Talbot distance and provides the spatial scale of this self-imaging phenomenon. We used onedimensional periodic and quasi-periodic gratings as well as two-dimensional hexagonal ones which have been produced by using the Adobe Illustrator graphical program at calculated spatial frequencies that allowed the observation of the effect within the laboratory. The gratings have been illuminated with a He-Ne laser of wavelength 633 nm (red) for which we determined the distance at which a clear self-image of the gratings could be obtained.
Indicadores clave de desempeño para el sistema ferroviario
Authors: Arango Serna Martín Darío , Díaz Bohórquez Carlos Eduardo , Arias Osorio Javier Eduardo , Lamos Díaz Henry 
Published: November 2017

The purpose of this presentation is to describe the methodology carried out for the construction of Key Performance Indicators (KPI) for the Colombian Railway System, based on a thorough review of KPI logistics corridors. The methodology used for the construction of the KPI to the railway mode comprises three stages. In the first stage, a literature review for the KPI in different transportation modes is developed. The second stage consists in characterize the Colombian Railway System in order to describe the current situation in this freight transportation mode. Finally, in the third stage, the KPI’s are constructed, product of information crossing process of the first and second stage.
Análisis de los beneficios de la identificación por radiofrecuencia en un centro de distribución textil colombiano
Authors: Acevedo Cárdenas Efrén Darío , Arias Osorio Javier Eduardo , Suarez Jorge Hernando Ramón 
Published: November 2017

The radiofrequency identification competes with the barcode in the management of the supply chain. To analyze the RFID benefits against its nearest competitor in logistics management is proposed in the development of this article, to achieve the goal we planned and executed a pilot according to the actual logistics of textile dealer. During the pilot technical analysis of the implementation of RFID technology is performed and a comparative study of times between barcode and RFID. Finally, it can be demonstrated that the benefits exceed the expectations of the company and from technical point of view; the implementation is feasible in this scenario.
Análisis de fiabilidad aplicado a interruptores de potencia en subestaciones eléctricas
Authors: Galaviz Rodríguez José Víctor 
Published: November 2017

Failure analysis and industrial safety presented in industrial processes are defined through probabilistic systems such as Weibull modeling. This practice relies on the domain of the fiability engineering where many predictive techniques are considered in order to establish correct maintenance of industry’s equipment. The predictive Weibull analysis considers exponential stochastic and normal model series leading to analytical solutions based on statistics and probability techniques. However, in plant, a graphical method is preferable due to fast and easy implementation, known as Weibull plot. In this paper, the Weibull plot is employed in order to establish the dependability, average and deviation for a group of power circuit breakers used by the generation and delivery electric power company in Apizaco, Tlaxcala, México.
Remoción de plomo de soluciones acuosas usando cáscara de yuca modificada con ácido cítrico
Authors: Albis Alberto , Martínez Jader , Severiche María , Garcia José 
Published: November 2017

In this study, the removal of lead using cassava peal modified with citric acid as adsorbent was studied. The biomass was characterized before and after the chemical modification and the kinetics of the adsorption process was evaluated. The experimental factor studied in the removal process of lead were time and temperature of reaction of cassava peel and citric acid; time of drying after reaction and biomass: acid ratio. Results show a successful sterification of biomass, yielding removals of lead up to 95 % with equilibrium times between 20 and 25 minutes. Adsorption kinetics was adjusted to a pseudo-second order model.
Identificación de la incertidumbre en el proceso estocástico de caudales medios en el río Fonce (San Gil – Santander)
Authors: Torres Pungo Katherine , Rivera Hebert Gonzalo , Rivera María , Fuentes Bacca Jorge Brandon , León Alvarez María Andrea 
Published: November 2017

The aim of this research is to demonstrate that the movement of the Fonce River, interpreted as erratic in the average values of flow, in the IDEAM hydrological station, located in San Gil, is a perception problem and actually its classification as a Wiener stochastic process, could be a result of the uncertainty margins of the metering devices instead of the erratic nature of the river behavior. At the beginning was collected the average river flow values, then was considered two different cases (with and without uncertainty) and based on that, were established the sample spaces, the events, the sigma algebras, the measurable spaces, the probability spaces, the random variables, and finally the stochastic process itself. This work lets conclude that the apparently erratic movement in the river behavior average flows of the Fonce river could be a result of the high uncertainty levels generated mainly by the mill of the appraisal of the river instead of an own property of the river nature. This will let to establish new stochastic lectures to model the average Fonce river flows dynamic, in which must be précised the mistakes in the metering in a detailed way for each one of the devices used in the measuring, and in each one of the appraisal for the last three decades of monitoring. The work was developed under the research project 1770 ING UMNG 2015, with funding of the Investigation´s office and together with the University of Pamplona.
Determinación de parámetros para el diseño y construcción de una mesa antivibratoria
Authors: Lalinde Murillo Jairo Enrique , Zapata Peña Jair 
Published: November 2017

This article presents the results of empirical study to obtain the most relevant parameters to be taken into account when designing and building a table that isolates and dampens external vibrations. The need for a vibration-isolated system for studies and development of holographic nondestructive testing by optical methods, is that the sensitivity of the diffraction effects in a hologram or a phenomenon of interference is in the order of tenths and hundredths of a micrometer. Here the resonance equation is analyzed for a system with one degree of freedom at low and high frequencies and then analyze an extrapolation of it. The damping coefficients of the different sheets with which the table is built, are experimentally calculated by an accelerometer.
Cristales fotónicos empleados en tratamientos médicos
Authors: Porras González Yina Marcela , Puentes Ossa Agni , Rodríguez Patarroyo Diego Julián 
Published: November 2017

Photonics has been studied for more than two decades in order to work in construction, development and manipulation of light especially of crystal structures at the nanoscale to be employed in telecommunications, computers, solar cells to biosensors, and other applications they have been useful today as it is in biomedical. Therefore, in this article, a retrospective study of photonic crystals, in order to leave as precedent a state of art expressing the theoretical foundations, applications of photonic crystals in medical treatments is presented. It also provides a description of the manner and comparative study of photonic crystals as electromagnetic physics from the perspective through the laws of Maxwell with a macroscopic view of the behavior of photonic crystals and from the point of view of optoelectronics. Finally, qualitative conclusions implementation of photonic crystals is in medical treatment.
El concepto de globalización en la jurisprudencia colombiana (2000-2014)
Authors: Avendaño Castro William Rodrigo 
Published: November 2017

Objective: To analyze the use, content and scope of the term “globalization” in the case docket of the Colombian higher courts: Constitutional Court, Supreme Court and Council of State. Method: A systematic search of decisions delivered of higher courts was conducted from the creation of each tribunal until 2014. We identified eleven (11) opinions including term “globalization”. Four (4) of them from the Constitutional Court and the rest from the Colombian Supreme Court. Conclusion: there is no uniform interpretation of the term “globalization” in judicial precedents in Colombia and its use and scope is more linked to an economic nature perspective without being granted a specific scope in the legal field.
Mandatory Adoption Of IFRS And Earnings Transparency In Korea
Authors: Shin Hoyoung , Oh Hyunmin 
Published: November 2017

We investigate the relation between mandatory adoption of IFRS (International Financial Reporting Standards) and earnings transparency in Korea. We define transparency of earnings as how well it explains a firm value. Financial reporting mitigates information risks of the firm by lessening information asymmetry between insiders and outsiders of a firm. If accounting information produced after adopting IFRS better explains a firm value, then, it will reduce information asymmetry and information risks of the firm, resulting in enhancement of earnings transparency. We measure earnings transparency based on Barth, Konchitchki, and Landsman et al. (2013) and Cheng and Subramanyam (2008).
The sample is 2,276 which are listed on Korea stock exchange over 2008-2014. The empirical result shows adopting IFRS is significantly positive with earnings transparency, which means it mitigates information asymmetry, enhancing earnings transparency in Korea.
Our study is distinguished from prior studies because we empirically examine influence of adopting IFRS on earnings transparency of Korea. Our result implies adopting IFRS contributes to higher earnings transparency which helps market participants make decisions.
Nuclear-Magnetic-Resonance Study on Mechanisms of Oil Mobilization in Tight Sandstone Reservoir Exposed to Carbon Dioxide
Authors: Wang Haitao , Lun Zengmin , Lv Chengyuan , Lang Dongjiang , Pan Weiyi , Luo Ming , Wang Rui , Chen Shaohua 
Published: November 2017

Summary
Nuclear magnetic resonance (NMR) was used to investigate the exposure between carbon dioxide (CO2) and the sandstone matrix with a permeability of 0.218 md and a porosity of 9.5% at 40°C and 12 MPa (immiscible condition). Minimum miscibility pressure (MMP) between oil and CO2 was 17.8 MPa, determined by slimtube test at 40°C. The exposure process between CO2 and the sandstone matrix included first, second, third, and fourth exposure experiments. Before each exposure experiment started, there was a CO2-injection stage with a CO2 injection under a constant pressure of 12 MPa and at a constant rate to keep fresh CO2 (concentration of CO2 is 100% in gas phase) in the system. Each exposure experiment ended when the obtained T2 spectrum was unchanged (total amount of oil in tight matrix remains constant). These processes were similar to CO2 huff ’n’ puff. The results showed that (1) oil in all pores could mobilize as exposure time increases in the first exposure experiment. (2) The total original-oil-in-place (OOIP) recovery is 46.6% for oil in big pores (29 ms &lt; T2 ≤ 645 ms)—this result is higher than the recovery (12.8%) for oil in small pores (T2 ≤ 29 ms). (3) Oil is mobilized fast in the initial exposure hours, and then the rate drops gradually until no more oil is produced. (4) Initially, the oil exists in pores with maximum relaxation times of 645 ms in the originally saturated core. After the CO2 injection, oil flows to pores with relaxation times slower than 645 ms, suggesting that oil in tight matrix is mobilized to the surface of core by swelling caused by CO2 diffusion. (5) The final OOIP recoveries of first, second, third, and fourth exposure experiments are 23.7, 7.2, 2.6, and 1.5%, respectively, and they decline exponentially. Oil mobilization in a tight-sandstone reservoir exposed to CO2 was observed by NMR T2 spectra under multiple exposure experiments. Mechanisms of oil mobilization were investigated (i.e., oil swelling, concentration-driven diffusion of hydrocarbons, and extraction of light components). The CO2 enhanced oil recovery (EOR) with multiple injections under immiscible conditions is acceptable and satisfactory in a tight-sandstone reservoir. CO2 huff ’n’ puff with optimized injection, soaking, and production process is an economic development method in a tight sandstone reservoir.