bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Potential Forest Ecotourism in Suligi Hill, Riau Province, Indonesia.
Authors: Harahap Irawan , Effendi Irwan 
Published: November 2020

Abstract
This study aimed to identify and analysed forest ecotourism objects in Suligi Hill, Kecamatan Kabun, Rokan Hulu. Indonesia. The locations and respondents was nominated by using purposive sampling method. Respondents consisted of local people, tourists, tourism businesses, and stakeholders. The collected data was associated with the concept of 4A (attraction, amenity, accessibility, and ancillary service) and SWOT (strength, weakness, opportunity and threat) analysed, WTA (willing to accept) and WTP (willing to pay), and descriptive potential analysis ecotourism economy. Ecotourism in Suligi Hill categorised as adventure, conservation and education tourism. Some ecotourism objects were named as; Suligi Hill, Puti Maifat Peak, Ranah Peak, Sikubin Waterfall, Dayang Baso Waterfall, Tirtan Waterfall, Macan Cave, and Garuda Cave. Suligi Hill is potential to develop as forest ecotourism area. It is necessary to improve the facilities and infrastructure access to each place of the ecotourism object. Ecotourism management must involve professionals as the main actors and then supported by local ecotourism actors.
Encouraging Community-Driven Approach in Developing Koto Sentajo
Authors: Sulistyani Andri , Firzal Yohannes , Yesicha Chelsy , Safri  , Sari Genny Gustina 
Published: November 2020

Abstract
Tourism village is an alternative solution to accelerating rural economy which is friendly to the environment and micro-economy. In the tourist village, the development meaning is from the community, by the community, and for the community. However, the study of tourism village development has specificities that cannot be equated because each tourist village has its characteristics. The policies that are applied must refer to the fundamental character of customs and the potential of available tourism resources. This study seeks to discuss a community-driven approach as an initiative to develop a tourist village in Koto Sentajo. The unique characteristics of this village as a state-based traditional village under ninik mamak provide a distinctive style in fostering tourism village.
Evaluation the Effectiveness Implementation of the Weather Modification Technology for Mitigating Peatland Fires
Authors: Sandhyavitri Ari , Rahmi Ilvi , Widodo Heru , Husaini Rizki Ramadhan 
Published: November 2020

Abstract
The objective of this article is to evaluate the effectiveness implementation of the weather modification technology (WMT) for mitigating peatland fire disasters in Riau Province, Indonesia. The implementation of this WMT in Indonesia has been relatively new and challenging as this cutting-edge technology may increase the precipitation rates and therefore, it may reduce the risk of peat fire hazards in the huge massive areas. The Riau province has experienced serious peatland fire disasters from the period of 2014 to 2016. The evaluation of WMT in this article was focused on four regions within Riau encompassing Indragiri Hilir regency, Meranti Island, Pelalawan, and Siak. The Tropical Rainfall Measuring Mission (TRMM) satellite data were used to calculate the precipitation rates. The method applied to evaluating the effectiveness of WMT was the Target Only Method (TOM). This method calculated the precipitation rates during the WMT period, which is compared to the historical precipitation data in a similar period. The total duration of a 3-year WMT implementation was 380 days, and the results were considered successful as an increase of precipitation rate (PCH) = 2.09 > 1.00. Hence, there was an increase in the average of precipitation rate during WMT period of 2014-2016 in Riau.
Development of a Circular Motion Experimental Device Using an Arduino Uno Microcontroller
Authors: Azizahwati Azizahwati , Rahmad M. , Hidayat Fahrun 
Published: November 2020

Abstract
The purpose of this research is to build a circular motion experimental device using the Arduino Uno microcontroller. This study uses the ADDIE model; Analyze, design, develop, implement and evaluate. This research was conducted until the develop stage. The research instrument was a validation sheet that was assessed by an expert. The data obtained were analyzed descriptively. The results obtained indicate that the experimental tool and manual for its use are declared valid by experts. This experimental tool can show a linear relationship between the angular velocity and the frequency of the dish with a relative error of 0.07%. The resulting experimental device is also capable of measuring frequencies and angular velocities for various discs.
Imaging Analysis of Thresholding Image Filtering, Brain Abnormalities Morphology, and Dose Report CT Scan Records
Authors: Meyzia Bunga , Hamdi Muhammad , Saktioto  , Amelia Rina 
Published: November 2020

Abstract
The abnormalities identified in the brain have been widely understood to be a form of disorder but displaying the data medically has been a problem. This study, therefore, proposes an imaging analysis to comprehensively investigate the thresholding method, morphology, and the medical imaging simulation approach using the CT scan. The focus was to identify the image of abnormalities in the brain starting with the illumination of the patient's head using X-rays and enhancing the image results. Moreover, irradiation results are also in the form of an image and output dose displayed on the Digital Imaging and Communication in Medicine using the radiology monitor. Thresholding methods and morphological operations are useful for determining the geometry of the area, depth, and volume of the brain using PHP programming. Furthermore, numerical calculations were applied to determine the value of the effective dose while statistical samples were used for 30 years and above. The results, therefore, showed the largest volume to be at the greatest effective dose value. Meanwhile, some data were not detected due to the abnormalities in the geometry of the brain object network, thereby, showing no significant difference in intensity values.
Nickel Doping in ZnO Nanorod Synthesis: Effects of Nickel Concentration on Physical Properties of the Nanorod
Authors: Iwantono  , Hutagaol Catherine , Saputrina Truly Theresia , Awitdrus  
Published: November 2020

Abstract
ZnO nanorods have successfully been grown on the surface of FTO. The growth of ZnO nanorods was carried out using the seed-mediated growth method, whereas the Ni doping was carried at different concentrations. The effect of nickel doping on ZnO nanorods was observed using field emission scanning electron microscope (FESEM), UV-Vis spectroscopy, and X rays diffraction (XRD). ZnO nanorods having hexagonal shape were shown by FESEM images, and overlap of ZnOnanorods forming a nanoflowers with wider rod size. UV-Vis spectra showed that strong absorption occurred at a wavelength of 390-300 nm, the highest intensity of absorption was resulted by 15mM sample. The energy gap of the sample decreased as increasing its concentration. XRD pattern of the samples showed the diffraction peaks occurred at angles of 2θ = 31.72°, 34.45°, 36.20°, 47.50°, and 56.57° that represented the crystal plane orientation of (100), (002), (101), (102), and (110).
Interpretation Intrusion of Seawater Using Geoelectricity and Measurement of The Well Water Salinity in Kijang Island, Indragiri Hilir District
Authors: Wijaya Dedi , Juandi Muhammad , Farma Rakhmawati 
Published: November 2020

Abstract
Investigating seawater intrusion is very important because it covers human life. Generally, people living in coastal areas have difficulty obtaining freshwater. The government needs to help the coastal community by making the well water. The physical parameter that affects the quality of freshwater in coastal areas is salinity. The purpose of this study is to analyze the intrusion of seawater in underground water systems in coastal areas. The research method used is the measurement of geoelectricity and salinity of the well water. The results showed that groundwater aquifers that can be a source of fresh water are at depths ranging from 72.6 meters to 168.6 m. This research shows that the salinity value of the well water is 4 ppt, so it can be classified as freshwater.
Magnetic Susceptibility and Heavy Metal Content of Palm Oil Plantations Soil as a Function of its Depth
Authors: Sinuraya Salomo , Amiruddin Erwin , Hutauruk Marisayani , Fajri Naldi Rahmat 
Published: November 2020

Abstract
The magnetic susceptibility and heavy metal content of oil palm plantations soil has been determined. The magnetic particles of the soil were separated from non-magnetic particles using neodymium iron boron (NdFeB) magnet. The magnetic induction of the soil was measured using Pasco Probe PS-2162. The magnetic susceptibility value on the surface of the oil palm plantation soil varies between (685.99 to 1081.96) × 10 −5. This value is higher than the reference soil magnetic susceptibility that is 457.30 × 10 −5. The magnetic susceptibility values decrease as soil depth increases and at a depth of 40 cm the magnetic susceptibility value is close to the value of reference soil magnetic susceptibility. The X-Ray Fluorescence Spectroscopy (XRF) test result showed that the plantation soil has been contaminated with Cr, Fe, Ti, Sr, and V, this is in accordance with the magnetic susceptibility value of the plantation soil surface which is higher than that of the reference soil.
Activated Carbon Monolith Derived from Coconut Husk Fiber as Electrode Material for Supercapacitor Energy Storage
Authors: Taer Erman , Naipospos Verdy Manoto , Taslim Rika , Agustino  , Apriwandi  
Published: November 2020

Abstract
Biomass-derived porous activated carbon materials have been receiving considerable attention in energy-storage devices especially for supercapacitor due to abundant, renewable, sustainable, and cost-effective production. In this study, porous activated carbon material with monolithic form has been successfully prepared from coconut husk fiber through one-stage integrated pyrolysis and ZnCl2 impregnation. Different physical activation temperature is the main focus in this study including 750, 800, 850, and 900 °C. The reduction of monolith dimensions such as mass, diameter, thickness and density have been reviewed as physical properties. Furthermore, the supercapacitor cells were performed with cyclic voltammetry t 1 M H2SO4 aqueous electrolyte at low scan rate of 1 mV s−1. The supercapacitor device based on the CFM-800 samples exhibited highest specific capacitance of 216 F g−1. This sample also performed a promising performance with an energy density of 30.00 Whkg−1 and a high power density of 108.57 Wkg−1. These results demonstrate that the coconut husk fiberhas been a high potential to as raw material for porous activated carbon monolith through low cost, vehicle and short-time processing with high-performance supercapacitors energy storage.
Review and new concepts for neutron-capture measurements of astrophysical interest
Authors: Domingo-Pardo C. , Babiano-Suarez V. , Balibrea-Correa J. , Caballero L. , Ladarescu I. , Lerendegui-Marco J. , Tain J. L. , Calviño F. , Casanovas A. , Segarra A. , Tarifeño-Saldivia A. E. , Guerrero C. , Millán-Callado M. A. , Quesada J. M. , Rodríguez-González M.T. , Aberle O. , Alcayne V. , Amaducci S. , Andrzejewski J. , Audouin L. , Bacak M. , Barbagallo M. , Bennett S. , Berthoumieux E. , Bosnar D. , Brown A. S. , Busso M. , Caamaño M. , Calviani M. , Cano-Ott D. , Cerutti F. , Chiaveri E. , Colonna N. , Cortés G. P. , Cortés-Giraldo M. A. , Cosentino L. , Cristallo S. , Damone L. A. , Davies P. J. , Diakaki M. , Dietz M. , Dressler R. , Ducasse Q. , Dupont E. , Durán I. , Eleme Z. , Fernández-Domíngez B. , Ferrari A. , Ferro-Gonçalves I. , Finocchiaro P. , Furman V. , Garg R. , Gawlik A. , Gilardoni S. , Göbel K. , González-Romero E. , Gunsing F. , Heyse J. , Jenkins D. G. , Jericha E. , Jiri U. , Junghans A. , Kadi Y. , Käppeler F. , Kimura A. , Knapová I. , Kokkoris M. , Kopatch Y. , Krticka M. , Kurtulgil D. , Lederer-Woods C. , Lonsdale S.-J. , Macina D. , Manna A. , Martínez T. , Masi A. , Massimi C. , Mastinu P. F. , Mastromarco M. , Maugeri E. , Mazzone A. , Mendoza E. , Mengoni A. , Michalopoulou V. , Milazzo P. M. , Mingrone F. , Moreno-Soto J. , Musumarra A. , Negret A. , Ogállar F. , Oprea A. , Patronis N. , Pavlik A. , Perkowski J. , Petrone C. , Piersanti L. , Pirovano E. , Porras I. , Praena J. , Ramos Doval D. , Reifarth R. , Rochman D. , Rubbia C. , Sabaté-Gilarte M. , Saxena A. , Schillebeeckx P. , Schumann D. , Sekhar A. , Smith A. G. , Sosnin N. , Sprung P. , Stamatopoulos A. , Tagliente G. , Tassan-Got L. , Thomas B. , Torres-Sánchez P. , Tsinganis A. , Urlass S. , Valenta S. , Vannini G. , Variale V. , Vaz P. , Ventura A. , Vescovi D. , Vlachoudis V. , Vlastou R. , Wallner A. , Woods P. J. , Wright T. J. , Žugec P. 
Published: November 2020

Abstract
The idea of slow-neutron capture nucleosynthesis formulated in 1957 triggered a tremendous experimental effort in different laboratories worldwide to measure the relevant nuclear physics input quantities, namely (n, γ) cross sections over the stellar temperature range (from few eV up to several hundred keV) for most of the isotopes involved from Fe up to Bi. A brief historical review focused on total energy detectors will be presented to illustrate how advances in instrumentation have led to the assessment of new aspects of s-process nucleosynthesis and to the progressive refinement of stellar models. A summary will be presented on current efforts to develop new detection concepts, such as the Total-Energy Detector with γ-ray imaging capability (i-TED). The latter is based on the simultaneous combination of Compton imaging with neutron time-of-flight (TOF) techniques, in order to achieve a superior level of sensitivity and selectivity in the measurement of stellar neutron capture rates.
GeoGebra as learning tool for the search of the roots of functions in numerical methods
Authors: Arceo-Díaz S , Bricio Barrios E E , Aréchiga Maravillas J , Salazar-Torres J 
Published: November 2020

Abstract
Physics is capable of describing, through equations, phenomena on a micro and macroscopic scale. However, most of these equations are non-linear and the identification of their roots requires the use of approximation methods, with numerical methods being a proposal based on a systematic and iterative process, that conclude only when a pre-established tolerance is satisfied. Traditional teaching of numerical methods involves the memorization of algorithms. However, this hinders student’s ability to understand the important aspects and then apply them for solving applied problems in subjects such as kinematics, dynamics, electromagnetism, etc. Therefore, this work proposes the use of GeoGebra, as a didactic tool to illustrate the functioning of single root searching algorithms. By using the dynamical graphic’s view of GeoGebra, a series of abstract and applied problems where solved by engineering students taking a numerical methods course. The scores of this test group was then compared to a test group, taught trough algorithm memorization. Results show can improve their understanding of how the bisection, false position, secant, and Newton-Raphson methods are able to find approximated solutions to polynomial and trigonometric equations. The results are compared against traditional learning, based on memorizing the steps of the algorithm for each method and the representation of the convergence of successive roots by numerical tables.
Analysis on the mechanic resistance and water absorption capacity of prototype mortar with residual coconut mesocarp and fiber aggregates
Authors: Pérez Valdovinos A S , Ramirez Rivera M , Correa Fuentes D A , Moreno Peña J R , Arceo Díaz S 
Published: November 2020

AbstractMaterial physics has traditionally been used in the area of mechatronics and aeronautical engineering. However, in recent years, bioclimatic architecture has used physical principles and conservation of matter to evaluate the performance of buildings where the comfort and safety of its inhabitants are sought, with the mortar being an adequate alternative in minimizing heat transfer. However, this material is fragile and has a high risk of fragmentation. This problem has been addressed through the incorporation of inorganic aggregates to maximize their mechanical properties but the cost of production is high compared to the traditional process. This work proposes the analysis of cement-sand modules with coconut endocarp and mesocarp (coconut fiber) aggregates, by evaluating their mechanical resistance, under a compressing force, and permeability and comparing to current regulations. The results showed that coconut fiber has a large impact on the mechanical resistance of the prototypes: a proportion of fiber greater than 3% compromises the mechanical resistance of the prototypes due to the water adsorption capacity of coconut fiber. Whereas, the prototypes identified under the endocarp to fiber ratio of 10% to 1% showed the highest performance in the deformation tests under compression with respect to the modules without the presence of this waste material. The resulting mixture meets the Mexican standard for mortar and could be an alternative for avoiding the burning of plant residues in regions with an active coconut industry.
Descriptive analysis of storytelling concepts in physics
Authors: Rojas-Suarez J P , Gallardo Pérez H J , Vergel-Ortega M 
Published: November 2020

AbstractThe research identifies storytelling concepts in Physics from university professors. The research follows a qualitative approach applied to 250 participants from universities in the department Norte de Santander, Colombia. The design implements as an interview technique the Socratic dialogue and as a quantitative support used elements of the correlational design. Interview and virtual survey instruments had a kappa index equal to 0.8 and α = 0.78. The results identify three categories associated with the application of science, the function of the history of Physics and scientific production. It is concluded that participant’s concept storytelling is the art of telling a story in motion and a didactic resource associated with approaches, the development of skills, useful to analyse the development of discoveries in Physics, its actors, its application in scientific advances and its contribution to innovation and community development. Classical mechanics, electricity and magnetism with storytelling, identifies in physical science axiological aspects associated with tradition; epistemological aspects associated with experimental physics; and critical aspects.
Beliefs of students around the study of physics in basic secondary and technical education
Authors: Prada-Núñez R , Gamboa-Suárez A A , Hernández-Suárez C A 
Published: November 2020

AbstractThis research is part of a line of research in education that aims to determine the degree of influence that affects have on the study of basic sciences that usually generate high rates of academic loss or repetition in school environments. The aim of this research was to analyze the system of beliefs that a group of students had about themselves as physics students, about physics as a discipline, about the physics teacher and his or her teaching practices, and about the importance of this area of knowledge in their social environment. To achieve this objective, a private educational institution is intentionally selected, with a home in San José de Cúcuta, Colombia, characterized by good results in the Saber 11 state tests. The informants were all students enrolled in 2019 in grades nine and eleven. A questionnaire was designed consisting of 36 items evaluated by means of a Likert scale with five levels of response. The results attested to the internal consistency and validity of the questionnaire. Subsequently, a complete characterization of the informants was carried out, allowing us to discover that the women in the sample have a better attitude and abilities in the study of physics. Finally, a factorial analysis was carried out in order to verify whether the opinions of the respondents fit into the four categories of beliefs considered by the researchers. Six factors were identified that explain 80% of the common variance, highlighting within them the beliefs that the student has about himself and his relationship with the teacher as the main factor explaining 41% of the variance.
Differential Alcohol Use Disparities by Sexual Identity and Behavior Among High School Students
Authors: Phillips II Gregory , Wang Xinzi , Ruprecht Megan M , Felt Dylan , McCuskey David , Stephens Reno , Perez-Bill Esrea , Beach Lauren B 
Published: November 2020

Abstract

Aims
Sexual minority youth (SMY) use alcohol at disproportionate rates compared to their heterosexual peers. However, sexual orientation is multidimensional. Analyzing alcohol use disparities only by one dimension of sexual orientation may result in critical disparities being obscured.

Methods
Data from state and local versions of the Youth Risk Behavior Survey were pooled (2009–2017), resulting in a large, diverse sample (n = 201,671). Multivariable logistic regression models were used to analyze associations between sexual identity/sexual behavior and three alcohol use outcomes among sexually active youth: age at first drink, binge drinking and current drinking.

Results
SMY, when categorized by sexual identity and sexual behavior, reported greater alcohol use than their heterosexual peers, though the magnitude of these disparities varied by subgroup. Both those who identified as bisexual and those who reported sexual behavior with both males and females reported the greatest levels of alcohol use. Decomposition analysis revealed that youth whose reported sexual behavior was not aligned with stereotypical behavioral expectations based on their sexual identity had higher odds of current drinking and drinking before 13 years as compared to other youth.

Conclusions
Results highlight the need to incorporate multiple methods of sexual orientation measurement into substance use research. Interventions based solely on identity, rather than both identity and behavior, may not be sufficient; targeted research into the causes of alcohol use disparities is needed, especially for bisexual youth, youth whose sexual behavior and sexual identity are not stereotypically aligned, and youth who report a sexual identity of ‘not sure.’