bluuebunny/crossref_metadata_2025 huggingface dataset:
Flujometría Doppler: herramienta diagnóstica en la prevención de complicaciones maternas fetales
Authors: Muñoz Solorzano Lilian Del Rosario , Alvarado Franco Hugo Javier , Alvarado Muñoz Ronit Nagiba , Alvarado Muñoz Benjamin Jeshua
Published: January 2020

La flujometría Doppler es una técnica de diagnóstico, que permite controlar y manejar de manera más acertada la hemodinamia fetal, con el claro propósito de evitar las complicaciones que podrían presentar las mujeres en estado de gestación, que debido a distintos factores puedan correr riesgos, dando así la oportunidad de tener un claro panorama de lo que está ocurriendo y poder tomar decisiones más convenientes tanto para el feto como para la madre.  El objetivo de esta investigación ha sido demostrar la utilidad de la flujometría Doppler en el diagnóstico y control de las complicaciones durante el embarazo. Se aplicó una investigación descriptiva, no experimental y de corte transversal, de donde se tomó una muestra que estuvo conformada por 96 historias clínicas de pacientes con diagnóstico de preeclampsia y que cumplían con los criterios de inclusión establecidos. Los resultados mostraron que la flujometría Doppler juega un papel determinante, para manejar los tiempos, de manera rutinaria, al hacerlo cada 24 a 48 horas según sea la necesidad, da la confianza y tranquilidad para poder seguir esperando con seguridad, pudiendo modificarlo y tomar una decisión adecuada. Se puede concluir que en los productos de la gestación, en preeclámpticas con restricción, la flujometría Doppler es necesaria para valorar los cambios hemodinámicos relacionados a la hipoxia fetal, su seguimiento, control y toma de decisión para la terminación exitosa del embarazo.
Modelling approach for multi-criteria decision-making selection process for artificial lift systems in crude oil production
Authors: Duran-Serrano Javier
Published: January 2020

Artificial Lift system selection is a key factor in enhancing energy efficiency, increasing profit and expanding asset life in any oilproducing well. Theoretically, this selection has to consider an extensive number of variables, making hard to select the optimal Artificial Lift System. However, in practice, a limited number of variables and empirical knowledge are used in this selection process. The latter increases system failure probability due to pump – well incompatibility. The multi-criteria decision-making methods present mathematical modelling for selection processes with finite alternatives and high number of criteria. These methodologies make it feasible to reach a final decision considering all variables involved.In this paper, we present a software application based on a sequential mathematical analysis of hierarchies for variables, a numerical validation of input data and, finally, an implementation of Multi-Criteria Decision Making (MCDM) methods (SAW, ELECTRE and VIKOR) to select the most adequate artificial lift system for crude oil production in Colombia. Its novel algorithm is designed to rank seven Artificial Lift Systems, considering diverse variables in order to make the decision. The results are validated with field data in a Casestudy relating to a Colombian oilfield, with the aim of reducing the Artificial Lift Failure Rate.
CFD Modeling and evaluation of a bi-stable micro-diverter valve
Authors: Guevara L Marco A
Published: January 2020

Micro-diverter valves are innovative and efficient devices used to generate microbubbles that can significantly enhance process efficiency in industry. Micro-diverter valves have been experimentally tested and modeled using CFD in previous works. However, a detailed CFD modeling evaluation of these valves has not been performed employing detailed turbulence modeling at transient and steady state. This article presents a three-dimensional CFD simulation and performance evaluation of a bi-stable diverted valve for microbubble generation. In the model, transient and steady state approaches were used to quantify the behavior in the valve. The κ – ε standard and κ – ε RNG turbulence models were used and compared. Different mesh configurations, mesh generation methods, and both turbulence models were evaluated to find the best set-up to simulate this valve. A brief analysis of the time-step size using the Courant number approach was also performed. Operation conditions at low Reynolds (3800) and high frequency (200 Hz) were used to assess possible industrial applications, thus setting the base for further studies. The results of this work show that at low Reynolds numbers and high frequencies, the valve is able to divert the fluid and thus it may have wider industrial applications.
Nanobiosensing of phenol and its derivatives in a Kraft synthetic black liquor
Authors: Reyes-Cuellar Julia Constanza
Published: January 2020

Phenol is an important raw material in the manufacturing industry, and it is found in industrial streams, both as a by-product and in wastewater flows. Due to their toxicity, the presence of phenol and its derivatives in water resources influences the quality of natural water, causing negative effects on human life. Thus, easily accessible measurement tools for phenol could be made available in rural communities where access to technology is limited. Sensors offer this opportunity, as they provide fast, reliable and easy use. In this study, a colorimetric nanobiosensor was developed based on polydiacetylene (PDA) liposomes, functionalized with Horseradish peroxidase (HRP).The recognition element was the HRP enzyme, immobilized at the surface of a cell-like nanostructure; biological interaction HRP-phenol was detected and the colorimetric PDA present  in the liposome acted as a transducer element. After biological interaction, the polymer backbone is transformed from the blue to red phase; this colorimetric transition is observed visually and registered spectrometrically. The nanobiosensor was used to detect the phenol concentration in the 0.25 to 2 mM range in an industrial stream from the Kraft process, simulated under lab conditions. The response of the biosensor gives 7 % error in comparison with a spectrometric method.
Parent Involvement in the Program for Developing of Children's Emotional Social Values in Darussalam Kindergarten of Sugihwaras Sidoarjo
Authors: Masfufah Siti , Darminto Eko , Naqiyah Najlatun
Published: January 2020

This study aims to determine the forms of emotional social values of children aged 5-6 years and their implementation with a parent engagement program. With the subject of research children aged 5-6 years group B in the Sugihwaras kindergarten in Sidoarjo Temple with a total of 7 children and their parents. The research approach used is qualitative data collection techniques through observation, documentation and interviews and field notes as well as the use of Cresswell's data analysis which is processing data and preparing data for analysis, reading all data, coding data, applying the results of the coding process and finally describe the results of the data during the study. From the findings of this study will be tested for truth by using triangulation techniques. The findings of this study indicate the results that the Parental Involvement in the Children's Emotional Social Value Program in TK Darussalam Sugihwaras Sidoarjo Temple is carried out through the social emotional value program by involving parents in the TK institution. Parental support has benefits and a big contribution to the education of their children. Through out bonding activities, cooking classes, parenting, curriculum preparation, habituation activities at home and modeling to develop children's emotional emotional values according to their age stages and abilities. The involvement of parents in children's emotional social value programs at every school institution should be fully socialized. Given the participation of parents is needed in the child's emotional social process. Support, appropriate stimulation and opportunities to explore children can grow and develop good social emotional values of children.
Critical Thinking Competence as regard of Self-Concept and Gender Differences
Authors: Sadikin Sadikin , Fahinu Fahinu , Ruslan Ruslan
Published: January 2020

The study was a qualitative research that focused to describe students’ critical thinking competence in mathematics. The subjects were six students from the X MIA-2 class of SMA 11 Kendari consisted of one male student categorized has a high self-concept, one male student categorized has a moderate self-concept, one male student categorized has a low self-concept, one female student categorized has a high self-concept, one female student categorized has a moderate self-concept, and one male student categorized has a low self-concept. In collecting data, the researcher used test instrument and questionnaire which were critical thinking competence test and self-concept questionnaire. Furthermore, the data collected were analyzed based on five phases of students’ critical thinking ability in mathematics. The result of the study revealed that male students had better critical thinking abilities than female students. A better self-concept category will contribute to enhance student’s critical thinking in mathematics
The Effectiveness of Problem Based Learning Model With The Assistance of Animation Media on Tetragon Material To The Students Mathematic Learning Achievement of Grade Vii Smp Negeri 5 Mandai
Authors: Nasir A. Muhajir , Hadijah Hadijah
Published: January 2020

This research was an experimental research that aimmed to know and measure the effectiveness of the application of Problem Based Learning model (PBL) with the assistance of animation media on tetragon material. This research type was quantitative research with one group pretest-posttest design. The population in this study was the students of class VII SMP Negeri 5 Mandai with a random sample of 28 students in an experimental class. Data collection using a test of learning achievement that has been validated by the expert. The data of this research were analyzed descriptively and inferential with normality test as prerequisite analysis test. The results of the data analysis showed that the average pre-test was 45,57 while the average post-test was 84,32. Average gain scores normalized 0,72 in the high category and normally distributed for learning achievement data. Based on the t-test obtained 0,000 < α = 0,025 we could conclud that there was a significant increase. The post-test also showed that 26 out of 28 students (92,86%) have reached KKM score in mathematics in SMP Negeri 5 Mandai. The results of this study indicate that there was a significant improvement on the mathematics learning achievement of students after being taught with PBL model with the assistance of animation media on tetragon material.
Perceptions of teachers, principals and school supervisors on students' skills using ICT in learning in the Senior High School
Authors: Rahmatina Desi , Zaid Norasykin Mohd
Published: January 2020

This study examined on status of school (public and private school) differences for the perceptions of participats (teachers,principals and school supervisors ) in eleven senior high school on the students skills of Information and Communication Technology (ICT) in Tanjungpinang city, Kepulauan Riau Province,Indonesia.  Data was taken by the use of online survey in 2016 who conducted by the Directorate General of Primary and Secondary Education of the Republic of Indonesia. We accumulate data from 310 respondents, they are 11 principals, 9 supervisors and 290 teachers on the eleven senior high school of Tanjungpinang district,  Kepulauan Riau Province, Indonesia. Data analysis was done using quantitative analysis, the first using descriptive statistics mainly percentages perceptions of the principal, supervisor and teachers toward skill’s students using ICT in learning, the second to inferential statistical analysis of non parametric statistics Mann Whitney to test alternative hypothesis that there are significant difference skill’s students among public  school and private school. SPSS software was used to analyze data.The results of the study shown that no different significantly on the students skill on use of computer in learning between public and private school (sig = 0.057), and there are different significantly on the students skill on use of mobile phone in learning between public and private school (sig = 0.001) and last result showed that there are different significantly on the students skill on use of internet in learning between public and private school (sig = 0.026).
The Development of Mathematics Teaching Materials through Geogebra Software to Improve Learning Independence
Authors: Saputra Eri , Fahrizal Effan
Published: January 2020

Geogebra is software designed to solve geometry, calculus and algebra material as well as applications for designing spaces and buildings. The purpose of this research is to produce teaching material products through Geogebra software in mathematics courses that can be utilized in learning. The stages in this research include: (1) the stage of developing teaching material products, (2) the testing phase of teaching materials products (3) the analysis of increasing student’s independence. Product development and level of practicability of teaching materials is validated by material experts, media experts, lecturers as users, and trials of teaching material products. Qualitative data is used as a consideration in teaching material products to make revisions while quantitative data is analysed by statistical tests to see an increase in student self-independence. Based on the test results of experts teaching materials developed for trials in the field. Experts recommendations about teaching materials are appropriate for use and revision. After the revision is issued, try the field that involving students, the results of the test items about the reliability level of 0.734 so that teaching materials could be used for research instrumentts. The average value and standard deviation of the normalized gain values for the experimental class are 0.812 and 0.139 while the control class are 0.731 and 0.198. The analysis result of the questionnaire is that there is an increase in self-independence in study of the students in Architecture Study Program, Engineering Faculty, Malikussaleh University.
Hybrid Learning in Mathematics Learning (Experimental Study in SMA Negeri 1 Pekanbaru)
Authors: Zein Mas`ud , M. Nuh Zulkifli , Dardiri Dardiri , Jasril Jasril , Candra Reski Mai , Hanafi Imam , Thahir Musa
Published: January 2020

The Indonesian government is trying to implement a learning process based on information and communication technology. However, there are still weaknesses in the use of the internet in the learning process among students. Therefore, this article aims to describe the activities of students during the implementation of hybrid learning in mathematics learning and find out the results of student learning in mathematics through the application of Hybrid Learning. The research method used in this article is a true experimental design with a research sample of SMA Negeri 1 Pekanbaru students, whose schools have easy internet access. To obtain primary data from the field, tests are used to measure student mathematics learning outcomes. After each data is collected and tabulated, the data will be analyzed using statistical parametric analysis with the t test using the help of SPSS Version 18.00. The results showed that there were differences in student learning outcomes between those studying with the Hybrid Cooperative Learning method and students learning with conventional methods in SMA Negeri 1 Pekanbaru. The difference is confirmed again by the mean value of the experimental class 34.55 while the mean control class is 31.35. The results of this calculation indicate that the ability of the experimental class students is better than the control class students. This means that the value of the experimental class is better.
Mathematical Justification Studies in Mathematics Education: An Evaluation of Studies between 2007 and 2016
Authors: YILMAZ Yasemin , AYVAZ Ülkü , MERSİN Nazan , DURMUŞ Soner , YAMAN Hakan
Published: January 2020

In this study, it was aimed to evaluate the mathematical justification studies in mathematics education between 2007 and 2016. In the study, 31 theses and articles about mathematical justification in mathematics education were analyzed by means of determined databases. In the literature review, the studies were classified according to the method, the study group, the mathematics subject, and the time frame of ten years. As a result of study, mathematical justification studies in mathematics education were carried out mostly in 2009, 2010 and 2016. As a study group, examined studies are composed mostly of students. As a method, qualitative method was used mostly. The tasks related to justification at three different levels of education were included. According to primary, middle and high school levels, the most common areas of learning for which mathematical justification tasks take place are numbers and operations, algebra and numbers and algebra, respectively.
PENGARUH MODEL PEMBELAJARAN LEARNING CYCLE 5E TERHADAP PENINGKTAN MINAT DAN HASIL BELAJAR PESERTA DIDIK DI SMA NEGERI 8 MATARAN TAHUN AJARAN 2018/2019
Authors: Susanti Yuyun , Zohdi Ahmad , Meiliyadi Ahmad Didik
Published: January 2020

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran learning cycle 5E terhadap peningkatan minat dan hasil belajar peserta didik di SMA Negeri 8 Mataram Tahun Ajaran 2018/2019. Jenis penelitian  yang digunakan adalah penelitian quasi eksperiment. Teknik pengumpulan data dengan menggunakan tes, angket dan dokumentasi. Berdasarkan hasil tes awal diperoleh rata-rata kelas eksperimen sebesar 52,39 dan kelas control sebesar 47,91. Hasil tes akhir menunjukan rata-rata kelas ekperimen sebesar 81,93 dan kelas kontrol 71,34. Data tes akhir peserta didik kelas sampel dianalisis menggunakan uji-t. Berdasarkan hasil analisis data menggunakan uji-t diperoleh thitung  sebesar 3,78 dan ttabel pada taraf signifikan 5% sebesar 2,000, maka thitung > ttabel. Maka dapat disimpulkan bahwa terdapat pengaruh model Learning Cycle 5E terhadap peningkatan minat dan hasil belajar peserta didik kelas XI di SMA Negeri 8 Mataram Tahun Ajaran 2018/2019.
PENINGKATKAN PEMAHAMAN KONSEP IPA MELALUI MODEL NUMBERED HEAD TOGETHER (NHT) BERBASIS MULTIMEDIA
Authors: Rahma Rahma , Fatimah Fatimah
Published: January 2020

Penelitian bertujuan untuk menganalisis peningkatan pemahaman siswa dengan   menggunakan model Numbered Head Together (NHT) Berbasis Multimedia pada materi cara pencegahan kerusakan lingkungan alam. Pendekatan  yang digunakan adalah pendekatan kualitatif dengan jenis penelitian tindakan kelas. Subjek dari penelitian ini terdiri dari 12 orang siswa kelas IV di SD Negeri 7 Lhokseumawe. Teknik pengumpulan data menggunakan metode tes, Hasil penelitian menunjukan bahwa pembelajaran dengan menggunakan model Numbered Head Together (NHT) Berbasis Multimedia dapat meningkatkan pemahaman konsep siswa pada materi cara pencegahan kerusakan lingkungan, hal ini dapat dilihat dari presentase ketuntasan yang diperoleh pada siklus I yaitu 67% dan meningkat pada siklus II menjadi 83% siswa yang tuntas. Siswa berharap  pembelajaran materi lain dapat juga melakukan dengan  model pembelajaran Numbered Head Together (NHT) Berbasis Multimedia.
DESAIN INSTALASI PENGOLAHAN AIR LIMBAH INDUSTRI PT NATURA PERISA AROMA LAMPUNG
Authors: Nugraha Yosep Widi , Setiyono Setiyono
Published: January 2020

PT Natura Perisa Aroma Lampung Selatan merupakan salah  satu perusahaan yang bekerja di bidang industri bahan makanan. Di dalam kegiatannya, PT Natura Perisa Aroma yang berlokasi di Insinyur  Sutami KM 9 Sukanegara, Kecamatan Tanjung Bintang Kali Asin, Tj. Bintang, Kabupaten Lampung Selatan membuka pabrik baru yaitu Unit Minyak Atsiri dengan bahan baku pala, cengkeh, kayu manis, sereh wangi dan lada hitam. Dengan adanya unit pabrik baru ini, akan membutuhkan unit pengolahan air limbah produksi yang berbeda dari pabrik yang lama. Hal ini dikarenakan perbedaan karakteristik air limbah yang dihasilkan dan kapasitas produksi yang membutuhkan unit IPAL yang baru. Limbah cair yang dihasilkan dari unit minyak atsiri masih mengandung sisa minyak dan organik tinggi, bersifat asam dan suhunya tinggi sehingga untuk pengolahannya memerlukan unit pretreatment berupa bak pengumpul penurun suhu, unit pemisah minyak (oil trap) dan unit netralisasi. Instalasi Pengolahan Air Limbah (IPAL) PT Natura Perisa Aroma unit minyak atsiri menggunakan reaktor aerobik menggunakan lumpur aktif. Pengolahan air limbah menggunakan lumpur aktif ini dapat menguraikan senyawa organik dalam air limbah melalui proses biologi menggunakan mikroorganisme.  Outlet IPAL PT Natura Perisa Aroma harus memenuhi baku mutu sesuai Permen LH RI No. 5 tahun 2014 Lampiran XLVII tentang Baku Mutu Air Limbah bagi Usaha Dan/atau Kegiatan Yang Belum Memiliki Baku Mutu Air Limbah Yang Ditetapkan. Kata kunci : air limbah produksi, karakteristik limbah, unit pretreatment, baku mutu
TEKNOLOGI PENGOLAHAN AIR ASAM TAMBANG BATUBARA “Alternatif Pemilihan Teknologi”
Authors: Said Nusa Idaman
Published: January 2020

Acid Mine Drainage (AMD) treatment systems can be broadly categorised as either active or passive systems, which differ according to their ability to handle Acidity, flow rate and Acidity Load of the influent AMD.  Most passive and active systems utilise aggregate carbonate to neutralise the pH and encourage precipitation of metals as hydroxides or sulphide minerals.  In addition, passive treatment systems often use organic matter to provide alkalinity and create reducing conditions which favour the precipitation of metal sulphides.Active treatment systems can be engineered to accommodate essentially any acidity, flow rate and acidity load. Active treatment of AMD can be achieved using fixed plants or portable equipment for in-situ treatment. Passive treatment systems are almost invariably used for post closure treatment scenarios, and are best suited to AMD with low Acidity and low flow rates. The key factors in selection and design of active and passive AMD treatment systems are water chemistry including pH, metals, sulphate levels and redox state and flow rate of influent AMD, and the objectives of AMD treatment. Other important factors include capital and operating costs, availability of suitable treatment reagents or materials and sludge management issues. Keywords: Acid Mine Drainage, Active Treatment, Passive Treatment, Coal Mining.
EVALUASI POTENSI SUMBERDAYA AIR UNTUK PENGEMBANGAN INDUSTRI DI KOTA BONTANG, KALIMANTAN TIMUR
Authors: Herlambang Arie
Published: January 2020

The total population Bontang in 2014 is around 187,346 peoples. With the level of domestic water demand of 110 liters /person/day, the water needs of the city for at least Bontang 238.52 liters/sec. Currently for the needs of the community water supply received from the local water company with a capacity of 80 liters/sec, and It will be developed further to 250 liters/second in 2015. There are two big industries that need huge of water, namely LNG and Fertilizers Factory.  Factory of East Kalimantan (PKT) need additional water supply around 1000 m3/h or (166.67 liters/sec) with the specifications for the Water Industry   and 200 m3/h will be used to supply the needs of water for 21 818 inhabitants. Bontang city water source can be derived from groundwater, rivers, and rain water storage (reservoirs of water). In recent decades Bontang relied upon groundwater for water supply industry and some communities, the rest use river water and rain water tandah. With a very heavy rainfall ( 2500 mm / year), then the making of ponds in large quantities can help to reserve water in the future. For the purposes of future water supplies, it would require an asessment of all potential water resources utilization and planning for the use of adapted to the urban development plan. Water recycling of domestic waste is also a potential source of fresh water in the future, especially for industrial use. The drainage system needs to be directed at a large holding pond located in a low area, before going into the sea. The rain that fell in the city drained and collected would be of potential if utilized. In short-term utilization of water of the Bontang river is very of potential, given its location in the city center and is one of the many watersheds in Bontang, causing floods in the rainy season. Control and management of water is needed to support the use of river water.Keywords: Water resources, Water Demand, Water Supply, and Water Balance
RANCANGBANGUN PROGRAM KONTROL DATA LOGGER UNTUK PEMANTAUAN KUALITAS AIR MENGGUNAKAN APLIKASI FOSS GNU C++
Authors: Wahjono Heru Dwi
Published: January 2020

Online and realtime monitoring system for water quality that uses a computer mainboard as data logger requires software applications that serve to control the sensor work in order to measure the water quality data and sends it to the data center. Some of the requirements such as data measurement, storage and delivery of data and early warning system are required by the data logger in order to have the features as desired by the majority of users of this system. To facilitate the making of the program code, sensor with serial communication ports (RS232C) will be used. Program control data logger that meets these requirements is developed using Water Flow Software Development Life Cycle method and using GNU C++ the free open source software (FOSS) as the development tools. Program control data logger that has been developed will be installed to the data logger hardware and operated using FreeBSD as the Operating system. The program will run on the class 10 of flash drive with 16 giga byte capacity. Keywords: water quality monitoring, online/realtime monitoring, early warning system (EWS), open source software, data logger, onlimo OSS, control data logger, GNU C++
7 PENYEBAB BANJIR DI WILAYAH PERKOTAAN YANG PADAT PENDUDUKNYA
Authors: Rahardjo Petrus Nugro
Published: January 2020

In Indonesia during the rainy season floods often occur in urban areas, especially in a very densely populated areas. Central or local government has always suffered huge losses due to widespread flooding and paralyze all activities of the city. So many environmental issues that can cause flooding and the problem has become very complex. By doing assessment study deeply it can be seen that there are 7 (seven) causes flooding, namely: there is not environmentally sustainable development; The lack of a clean lifestyle in the general public; The lack of planning and maintenance of good drainage; The lack of consistency from the authorities in Spatial Planning and Regional; The absence of good conservation programs in balancing environmental of water; Iand subsidence; and very high rainfall intensity. Therefore it is necessary for serious efforts to address the flooding problem through: The consistency in environmentally sustainable development; Clean lifestyle in the community; The application of the concept " Water front City "; The application of the concept " One River One Management "; Making Infiltration; Prevention of Land Subsidence by Groundwater Injection manner; and Improved coordination of all stakeholders. Keywords: Causes flooding, options in handling flood problem.
MODIFIKASI & OPTIMALISASI IPAL GEDUNG BPPT DENGAN PROSES LUMPUR AKTIF DAN BIOFILTER
Authors: Hartaja Dinda Rita K. , Setiyono Setiyono
Published: January 2020

Prior to modification of the WWTP, BPPT building has had a domestic waste water treatment plant with a lagoon aeration system using activated sludge process. Due to the quality of the current WWTP outlet not meet quality standards waste disposal in accordance with the Governor Regulation DKI No. 122 in 2005, it is necessary to optimize the existing WWTP process and needs to be modified in order to produce quality process WWTP outlet that can meet quality standards. WWTP modification is accomplished by the addition of biofilter reactor, which has been proven reliable and stable in terms of treating domestic wastewater. Based on the monitoring results of the WWTP, it can be concluded that this system can function in accordance with the planning of the quality of the WWTP outlet which can meet the quality standards of the waste in accordance with  Governor Regulation DKI No. 122 2005.Keywords : Domestic wastewater, process modification, WWTP optimization.
ANALISIS SISTEM DINAMIK NERACA AIR DI PULAU TIDORE
Authors: Malaka Halima , Yanuar M. , Purwanto J. , Zein Alinda
Published: January 2020

This research was conducted at Tidore Island, –Tidore City, North Maluku Archipelago Province. Objective of this study were  1) build a water balance model Tidore Island. This Method used in this research is method of survey with water balance analysis. Analysis of the data used is the analysis of dynamic system to determine the balance of the year 2009 - 2032 with software stella version 9.0.2. The result of analysis showed that in 2009 there were water balance 21,189,941.20 m3 / year and in 2032 there was a deficit of 427,678.61 m3 / year. Water availability index (IKA) in 2009 amounted to 1416.10 and in the year 2032 amounted to 82.54 IKA the value, it indicates that in 2032 the availability of groundwater only able to serve 82.54% the water demand. To improve the balance of water needed for water saving and conservation policies at each land use.Saving measures water use and conservation of groundwater done using three policy scenarios, the model simulation results indicate that both scenarios can increase the efficiency of water use and water balance in 2009 to 21,270,444.14 m3 / year with a value of 1490.63 and value IKA in 2032 can be water deficit of 31128.46 m3 / year. While the results of the simulation scenario 3 scenario between saving integrated water use and conservation can improve the water balance in 2009 amounted to 21,350,947.08 m3 / year and the value IKA 1573.44, and in 2032 the value decreased to 117.92 IKA shows the availability of ground water able to serve 117.92% of  water demand  people. Keywords: water balance,system dynamic, water demand, ground water availability
ANALISIS CEMARAN LIMBAH INDUSTRI DAN DOMESTIK TERHADAP BIOTA LAUT DI PERAIRAN KOTA TANJUNGPINANG, PROVIPNSI KEPULAUAN RIAU
Authors: Susanto Agus , Pratomo Hurip , Rahman Arief
Published: January 2020

Industrial sector is the second priority in development of Tanjungpinang city. The mining industry, processing industry, transport and food are thriving . People has the opinion that a small industry is an industry that does not threaten the environment, so that the small-scale industrial waste are sometimes were forgotten due to it is not significant, and not too dangerous, whereas the B3 waste contained in domestic waste can cause disturbance of marine life and the ecosystem this will have potential to destroy the ecosystem. This study aims to explain the impact of B3 and domestic waste pollution to the environment, especially marine waters to marine life, and feedback to the provincial government for the formulation strategy of the management of the Tanjungpinang waters environment. For the analysis, 10 water samples and 15 aquatic biota was taken at different locations. While the quantitative analysis of pollutants carried by observing a population of the elements of hazardous substances from sediment samples, water and biota network. XRF techniques (X-Ray Fluorescence) and AAS (Atomic Absorbance Spectroscopy) used for the analysis content of the samples. The pollution index determined by compare metal concentration ratio the polluted areas with the standard metal concentration areas that were not polluted. The results show that the coastal water of tanjungpinang have been contaminated by heavy metals (As, Cd, Cu , Pb, Zn, and Ni) with pollution index 2.91 - 5.96. The pollutant Metals were came from the human activities in the shipbuilding industry usually Pb and Zn which is the main component of the paint. While heavy metals such as arsenic (As), Cadmium (Cd), copper (Cu) probably derived from bauxite mining activity, the high levels of nitrate is a sign of agricultural activities that use fertilizers. Unfortunately the rest of it discharged into the coastal waters of Tanjungpinang city, and there is also pollution of E-coli from human waste. Biota that live in the waters of Tanjungpinang have been contaminated by heavy metals (Hg, Zn, and Ar) by bioaccumulation. The related activity of the pollutant was the bauxite processing industry in the past. Heavy metal pollution is highest in Kijing (Pilsbryoconcha exillis) which includes : Hg, Cr, As, Cu, Zn, Ni, and the dimersal fish that have limited movement. Feedback given is that provincial governments do mangrove reforestation along the coast and estuaries, and create marine conservation areas determination of areas (KKLD) in the strait Dompak water. Key Words : heavy metals, marine life, coastal water of tanjungpinang, mangrove
PERANCANGAN PILOT PLANT PENGOLAHAN AIR MINUM UNTUK ZONA PENDIDIKAN DAN RISET KAWASAN TECHNO PARK, KABUPATEN PELALAWAN
Authors: Hernaningsih Taty
Published: January 2020

Techno Park regional development in order to increase regional competitiveness based on innovation and knowledge (konwledge based economy) requires infrastructure that can meet basic human needs, such as drinking water supply for the community. Techno Park region Pelalawan, Riau province located in the peat so that most of the water source is brownish and contains peat. While surface water sources such as rivers Kampar located far from the region. Therefore, to overcome the problems of water supply for the people who will live in the region need to be prepared water supply planning. Early stages of development is focused on the areas of education and research zone so that planning for water supply will also be prioritized in both these zones. Has calculated the drinking water needs based on projected population and  water demand standard in these locations. Planning of water treatment plant will conduct  in  5 stages yearly so that development is more economic with design capacity of 5 l / sec in 2033. Alternative sources of raw water are from Kampar river or groundwater that is used if transmission pipeline from the Kapuas river has not ben constructed. Technology of drinking water treatment with ultrafiltration processes that are environmentally friendly will be applied to meet the water needs of society. Transmission pipelines is planned of 15 inches diameter laying in parallel with lane highway from Kampar River ( location intake BPAB ) to the water treatment plant in the education zone . Keywords : Techno park region, water supply planning, ultrafiltrasi, peat area.
APLIKASI SISTEM PENYEDIAAN AIR BERSIH BERBASIS MASYARAKAT DI PULAU PANDANGAN, KABUPATEN PANGKAJENE, SULAWESI SELATAN
Authors: Herlambang Arie
Published: January 2020

Pangkajene archipelago, is archipelago comprising 117 islands scattered in the West Coast District Pangkajene. The islands were inhabited by populations ranging from 10 to 250 heads of families. Most of the population livelihood as a fisherman. To support the daily basic needs are still supplied from the mainland, including the need for clean water. Community water needs during this time a lot depends on rain water that collected or from shallow groundwater. In line with population growth, water demand increases, so frequent water shortages, especially during the dry season. Sea water treatment technology with reverse osmosis systems is an alternative to the settlement of water shortage on the island, but because the number of islands many, it will be difficult to meet the needs of water in a short time. Therefore chosen the middle position of the three islands (Cakdi Saroppe Island, Island and Island Sanane view) as a distribution center. Installed capacity for each of the islands is 10 m3/day, which can serve to the needs of drinking water a thousand people. Water treatment technology with reverse osmosis pretreatment consist of the form of multi-media filter consisting of silica sand, zeolite, and activated carbon, followed by cartride filter and a reverse osmosis membrane. Construction of the water treatment unit involves people since it began surveying best location, construction, training and initial operation. Water that has been processed can drink for everyday purposes, therefore, to support the operations of the water is sold to the public for replacement of operational money. The biggest cost needed to produce water is the cost of fuel. By managing the sale of water expected operating costs can be met and comunity get drinking water at an affordable price.Keyword : dringking water, reverse osmosis, society engangement.
ANALISIS TERHADAP PERUBAHAN SALINITAS AIR TANAH DANGKAL PADA SISTEM AKUIFER TAK TERTEKAN CEKUNGAN JAKARTA
Authors: Indriatmoko Robertus Haryoto
Published: January 2020

The study on ground water salinity changes in unconfine aquifer system, is the study of hydrostatic equilibrium between the fresh ground water and salty ground water, aquifer unconfine restricted to coastal. The main objective of the aspects examined, namely: (i) To identify the level of intrusion of sea water in the basin aquifer system taktertekan Jakarta. The purpose and methodology of the study are as follows: (i) The primary data (1995-2009) and secondary (2010), including salinity data attributes, including ground water level, coordinates (UTM) and groundwater salinity levels (ii). Regression analysis of the relationship between the data (EC, Cl- and TDS). (Iii). Analysis of the period 1995-2010 salinity map using GIS and graphic analysis. (Iv). The focus of the analysis in three zones transection (ZT), namely ZT-I west, ZT-II central and eastern ZT-III was unconfine aquifer system in the Jakarta basin. The conclusion of this study are: (i) Variable Cl- and TDS have a strong correlation to predict EC using the following equation Y = 3.45 X + 517.80 (R2 = 0.88) for the DHL and TDS = 1, 86 X + 132.86 (R2 = 0.99) , (ii) based on the results of the analysis of the level of sea water intrusion during the period 1995-2010 (15 years), the intrusion of sea water has reached 8 km from the coast in the ZT-III, in ZT-II reaches 5 km and at ZT-I at 4.8 km from the coastal. Analysis of the development of the distance from shore limit saltwater intrusion since 1982 for 28 years can be calculated that the rate of salt water intrusion in the transection zone I is 0.1 km/year, the transection zone II is 0.06 km/year and in the zone transecting III is 0.11 km/year. The main cause of major intrusion of sea water into the aquifer system of the mainland is the amount of groundwater pumping against excessive.Keywords :  salt water intrusion, unconfine aquifer, aquifer system, Jakarta basin, recharge, salinity, electrical conductivity.
Bases de la teoría poskeynesiana del dinero endógeno
Authors: Carvajal Mantilla Sebastián
Published: January 2020

Los procesos de creación monetaria en las economías modernas están mal entendidos. Esto lleva a interpretaciones erróneas de cómo funcionan los sistemas monetarios modernos. Los bancos centrales no determinan de manera exógena la cantidad de dinero en una economía. Los bancos privados tienen la capacidad de crear dinero vía crédito y es la demanda de éste la que determina la cantidad de dinero en una economía. El presente artículo pretende explicar de forma sistemática y coherente las bases de la teoría poskeynesiana de dinero endógeno para ilustrar las ideas mencionadas.
Marx y el extractivismo
Authors: Chávez David
Published: January 2020

En los actuales debates sobre desarrollo y «extractivismo» en el Ecuador hay unatendencia evasiva en relación con una posible interpretación marxista de este tema. Esto sedebe a la hegemonía en este campo de discusión de ciertas interpretaciones provenientes delpostestructuralismo, el poscolonialismo y el neoestructuralismo. Sin embargo, subyace ahí unapregunta fundamental: ¿Puede la crítica de Marx contribuir a la interpretación de la cuestióndel «extractivismo»? Este es el punto de partida de este artículo. En esencia, se propone que esacrítica puede contribuir a superar ciertas limitaciones importantes en aquel campo de debate.
Nuevos extractivismos, viejos conflictos.Dinámicas territoriales en torno a la explotación del litio en el Noroeste argentino
Authors: Florencia Puente Andrea , Argento Melisa
Published: January 2020

En la última década, el litio se ha convertido en un mineral estratégico a escala global por sus potencialidades para fabricar baterías que almacenen energía eléctrica. En Argentina, las empresas que llevan adelante proyectos de exploración y explotación del litio en diversos salares de la Puna de Atacama, entran en conflicto con comunidades indígenas que allí habitan ancestralmente. Se expresa una disputa por el territorio que involucra a comunidades Kolla y Atacama que utilizan la sal y la escasa agua disponible para su subsistencia, y a empresas multinacionales conformadas por capitales privados mineros, automotrices y empresariales que también requieren esos recursos.
Pablo Bertinat, Eduardo D’Elia, Roberto Ochandio, Maristella Svampa, Enrique Viale y Observatorio Petrolero Sur (2014). 20 mitos y realidades del fracking
Authors: Martínez Andrea
Published: January 2020

Reseña de "20 mitos y realidades del fracking"
Bueno para comer, bueno para vender: relaciones de producción awá y la coca
Authors: Ocampo Marcela
Published: January 2020

Este artículo busca analizar cuáles fueron los cambios en las relaciones de producción de la población indígena awá de Ricaurte-Nariño, Colombia, suscitados por la inclusión de cultivos de coca de uso ilícito en su sistema productivo. Con una perspectiva etnográfica y datos recogidos desde el año 2012, se sustenta que dichas relaciones, anteriormente incrustadas en la producción para el autoconsumo, mantenían una estructura social igualitaria que se ha transformado por la aparición y expansión de estos cultivos, tornándose desigual en razón de la explotación de la mano de obra y la tierra.
La ley general de la acumulación capitalista, una reinterpretación
Authors: Cajas Guijarro John
Published: January 2020

Este artículo reinterpreta uno de los pasajes más importantes de El Capital: la «ley general de la acumulación capitalista», en donde la contradicción asalariados-capitalistas genera una dinámica cíclica en la acumulación de capital. Para lograr tal reinterpretación —similar a la propuesta de Richard Goodwin (1967)— se definen los determinantes de la acumulación y la tasa de ganancia, se detallan las funciones del ejército laboral de reserva (elr), y se juntan ambos aspectos en un sistema dinámico cuya simulación sugiere la existencia de ciclos capitalistas afectados por la tendencia a la caída de la tasa de ganancia.
Ejes centrales de acumulación de capital en el Ecuador actual: Una panorámica general
Authors: Ruiz Acosta Miguel
Published: January 2020

Cruzando información de tres bases de datos oficiales recientes, el presente estudio muestra cómo durante los últimos lustros —a partir de la dolarización— el patrón de reproducción dominante en Ecuador no solo se apoyó en la exportación petrolera y de productos de origen agropecuario, sino que también se complejizó con el crecimiento de otros ejes de acumulación, vinculadas al mercado interno: sector inmobiliario y de la construcción; industrias manufactureras; importación y comercio a gran escala; información y comunicaciones; y sector financiero. También se destacan aspectos de la concentración de poder de mercado en cada una de esas ramas.
Breve discusión de la economía política de los flujos financieros ilícitos en el mundo y América Latina
Authors: King Katiuska
Published: January 2020

El presente artículo1 analiza si la problemática de los flujos financieros ilícitos puede ser explicada desde una perspectiva global o regional, identificando puntos de encuentro y desencuentro entre los intereses de los países en función de las repercusiones que esta genera, así como de las propuestas de solución en actual discusión. El dumping social y la estabilidad financiera se cuentan entre los principales elementos de encuentro mientras que el reciclaje financiero y la representación de las instituciones que discuten las soluciones se pueden considerar como componentes de desencuentro fundamentales.
Meningkatkan Kesadaran Bahaya Sampah Laut Melalui Pendampingan pada Masyarakat Lokasi Wisata Pantai Kuranji
Authors: Sukib Sukib , Muti'ah Muti'ah , Siahaan Jeckson , Supriadi Supriadi
Published: January 2020

Telah dilakukan kegiatan penyuluhan tentang bahaya sampah laut. Program ini bertujuan untuk memberikan edukasi/kesadaran kepada masyarakat Pantai Kuranji (Siswa SMP N 17 Mataram) tentang: (1) bahaya sampah (terutama plastik), (2) cara menjaga kebersihan pantai. Kegiatan ini dilakukan dengan metode ceramah, diskusi dan tanya jawab dengan menggunakan media poster. Dari hasil kegiatan ini adalah: (1) Telah dibuat media untuk kegiatan penyuluhan berupa poster tentang pencemaran laut dan efeknya terhadap kehidupan, (2) Hasil observasi, diskusi dan tanya jawab, serta tes sikap siswa, menunjukkan bahwa melalui kegiatan penyuluhan ini pengetahuan siswa tentang bahaya sampah laut meningkat. (3) Kesadaran siswa terhadap bahaya sampah laut meningkat.
Penyuluhan Mengenai Kesehatan Reproduksi pada Komunitas Bajang Pejoeang Mataram
Authors: Cholidah Rifana , Widiastuti Ida Ayu Eka , Irawati Deasy
Published: January 2020

Abstrak: Tujuan kegiatan pengabdian ini adalah untuk memberikan pengetahuan kepada Komunitas Bajang Pejoeang Mataram tentang: 1) perubahan fisik pada masa pubertas, terutama yang berkaitan dengan sistem reproduksi, 2) konsekuensi  perkembangan sistem reproduksi, dan 3) cara menjaga kesehatan reproduksi. Penyuluhan kesehatan disampaikan oleh tim dosen beserta mahasiswa Fakultas Kedokteran Universitas Mataram. Materi disampaikan oleh tim dosen dan mahasiswa membawakan acara sebagai Master of Ceremony. Metode pelaksanaan berupa penyuluhan kesehatan mengenai kesehatan reproduksi pada Komunitas Bajang Pejoeang Mataram. Penyuluhan kesehatan reproduksi ini dihadiri oleh 24 peserta. Peserta sangat antusias, ditandai dengan banyaknya pertanyaan pada sesi diskusi setelah penyuluhan. Pada kegiatan ini disimpulkan bahwa masa remaja adalah salah satu masa terjadinya perkembangan paling pesat dalam perjalanan hidup manusia. Proses pematangan secara biologis umumnya mendahului kematangan psikososial pada remaja. Oleh karenanya diperlukan upaya edukasi terhadap remaja putra dan putri terkait kesehatan reproduksi untuk mencegah perilaku seksual di usia remaja. Kata Kunci: Penyuluhan; Kesehatan Reproduksi; Komunitas.
New Media Access and Use for Triggering the Farmers Capability Improvement in Central Java Indonesia
Authors: Prastyanti Shinta , Subejo Subejo , Sulhan Muhammad
Published: January 2020

The coconut sugar industry is a hereditary business in Banyumas. However, the low income of farmers, poor education, regeneration, and limited number of extension staffs, are some of the problems associated with its development in rural areas. Therefore an alternative strategy is needed to solve these problems to stay above the competitive and fast-growing market. This study, therefore, aims to determine the access and use of the new media to trigger farmers capability improvement. In-depth interviews and FGD were used to collect data from coconut sugar farmers, extension and cooperative staff, informal leaders, and government officers. Finding show that farmers have the freedom to access new media, though the access is varied based on socio-demographic characteristics. Following their experience in online activity, farmers conduct a social interaction with related parties to discuss the information obtained. Therefore, through this interactive process, farmers tend to realize their functions to improve their capability by obtaining new information, expanding their economic opportunity, affiliation, besides play and emotion.