bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Penguasaan Objek Matematika dalam Penerapan Lesson Study (Kajian Pada 3 Mahasiswa PIPM Angkatan X Semester Ganjil T.A 2017/2018 di Prodi S2 Pendidikan Matematika FKIP Universitas Bengkulu)
Authors: M.Fachruddin.S
Published: August 2019

Penelitian ini bertujuan untuk mengidentifikasi penguasaan objek langsung dan tidak langsung dalam 2 mata pelajaran matematika kepada 3 siswa yang mengikuti Praktek Inovasi Pembelajaran Matematika (PIPM) Angkatan X Semester Ganjil TA TA 2017/2018 Prodi S2 Pendidikan Matematika Universitas FKIP Universitas Muhammadiyah Malang Bengkulu, dan faktor-faktor yang mempengaruhinya. Sampel penelitian ini adalah 3 siswa yang mengikuti Praktek Inovasi Pembelajaran Matematika (PIPM) bersama Pamong Drs.M.Fachruddin.S, MPd. Hasil penelitian menunjukkan bahwa objek langsung pada 2 mata pelajaran matematika (Teori Bilangan dan Capita Selekta Matematika tingkat Pendidikan Dasar) yang terdiri dari penguasaan konsep, operasi, dan prinsip matematika dikategorikan sangat baik. Demikian pula penguasaan objek tidak langsung dalam dua mata pelajaran matematika (Teori Bilangan dan Kapita Selekta Matematika tingkat Pendidikan Dasar) yang meliputi kemampuan pemecahan masalah dan kemampuan penalaran ke dalam kategori tinggi. Ada tiga faktor yang menyebabkan penguasaan objek matematika, yaitu (1) kualifikasi dan kompetensi guru, (2) kualitas pembelajaran / perkuliahan, dan (3) budaya belajar siswa.

 

This study aims to identify the direct and indirect object mastery in 2 mathematics courses in the application of lesson study on 3 students who follow the Practice of Mathematics Learning Innovation (PIPM) Force X Odd Semester FY 2017/2018 Prodi S2 Mathematics Education FKIP University of Bengkulu, and the factors that influence it. The sample of this research is 3 students who follow the Practice of Innovation of Mathematics Learning (PIPM) with Pamong Drs.M.Fachruddin.S, MPd. The result of the research shows that the direct object in 2 mathematics subjects (Theory of Numbers and Capita Selekta Matematika level of Basic Education) consisting of mastery of concept, operation, and mathematics principle is categorized very good. Similarly, the mastery of indirect objects in two mathematics courses (Theory of Numbers and Kapita Selekta Matematika level of Basic Education) which includes problem-solving ability and reasoning ability into high category. There are three factors causing the mastery of mathematical objects, namely (1) qualification and competence of teachers, (2) the quality of learning / lectures and (3) student learning culture.
Analisis Kemampuan Literasi Matematis dan Keterampilan Berpikir Tingkat Tinggi Siswa SMP Negeri di Kota Pekanbaru
Authors: Syarifah Nur Siregar  , Titi Solfitri  , Yenita Roza
Published: August 2019

Penelitian ini bertujuan untuk mengetahui kemampuan literasi matematika dan keterampilan berpikir tingkat tinggi siswa di SMP Negeri Pekanbaru. Instrumen penelitian ini adalah tes matematika yang telah dikembangkan oleh Pendidikan Matematika Realistis Indonesia yang telah diuji di 11 kota di Indonesia (tidak termasuk Pekanbaru). Teknik pengambilan sampel dalam penelitian ini adalah multi-stage sampling. Jumlah siswa yang mengikuti tes adalah 113 orang yang mewakili SMPN 12, SMPN 20, dan SMPN 25. Hasil penelitian menunjukkan bahwa kemampuan literasi matematika siswa masih rendah dan pertanyaan yang diuji yang mengukur kemampuan berpikir tingkat tinggi belum dikuasai. baik oleh siswa belum. Kesimpulan dari penelitian ini adalah kemampuan literasi matematika dan keterampilan berpikir tingkat tinggi siswa di SMP di kota Pekanbaru rendah.

 

This study aims to determine the mathematical literacy ability and the higher order thinking skill of students at Junior High School in Pekanbaru. The instrument of this study is a mathematics test that has been developed by Indonesian Realistic Mathematics Education which has been tested in 11 cities in Indonesia (excluding Pekanbaru). The sampling technique in this study is multi-stage sampling. The number of students who took the test were 113 people representing SMPN 12, SMPN 20, and SMPN 25. The result showed that the mathematical literacy ability of students is still low and the tested question which measuring the higher order thinking skill has not been mastered well by the students yet. The conclusion of this study is the mathematical literacy ability and the higher order thinking skill of students at Junior High School in Pekanbaru city is low.
Peningkatan Stabilitas Termal Enzim α-Amilase dari Bacillus subtilis ITBCCB148 dengan Amobilisasi Menggunakan Zeolit
Authors: Yandri  , Fathaniah Sejati  , Tati Suhartati
Published: August 2019

The objective of the research is to increase the thermal stability of -amylase from Bacillus subtilis ITBCCB148 by immobilization using zeolite. For that reason, firstly we need to produce, isolate, and purify the enzyme. The purification of the enzyme was conducted by the following steps: fractionation with ammonium sulphate, dialysis, and CM-cellulose cation exchange column chromatography. The purified enzyme was immobilized using zeolite. The success in immobilization of the enzyme was evaluated by comparing the thermal stability of the enzyme before and after immobilization. Activity of α-amylase was determined by the Mandels and Fuwa method. The protein content was determined based on the method by Lowry. The results showed that the specific activity of purified enzyme was 2473.7 U / mg, increased 19 times compared to crude extract of enzyme having specific activity of 1285.9 U / mg. The purified enzyme has the optimum temperature at 65ºC, while the immobilized enzyme has the optimum temperature at 75ºC. The thermal stability test of the purified enzyme at 65ºC for 100 minutes showed the purified enzyme having residual activity of 20%; t 1 / 2 = 30 min, k i = 0.023 min -1 and ΔGi = 103.65 kJ mol -1 . The thermal stability test of the immobilized enzyme at 65ºC for 100 minutes showed that the immobilized enzyme had residual activity of 40%; t 1/ 2 = 49 min, k i = 0.014 min -1 and ΔGi = 105.03 kJ mol -1 . Immobilization using zeolite has succeeded in increasing the thermal stability of enzyme by 1.64 times compared to the purified enzyme, which is indicated by the decreasing of k i value, the increase of half-life and denaturation energy change (ΔGi).
Pengembangan Bahan Ajar Inovatif Berbasi Proyek dengan Multimedia untuk Pengajaran Senyawa Asam Karboksilat
Authors: Jamalum Purba  , Ratu Evina Dibiyantini  , Manihar Situmorang
Published: August 2019

Peningkatan kualitas pembelajaran sangat diperlukan dalam rangka menghasilkan lulusan yang kompeten untuk mengisi dunia kerja di era revolusi industri dunia keempat. Pemanfaatan teknologi terkini menggunakan multimedia dalam pembelajaran akan dapat mendorong mahasiswa belajar aktif, lebih bermakna, dan temotivasi belajar secara optimum. Tujuan penelitian ini adalah untuk menghasilkan bahan ajar inovatif berbasis proyek dengan multimedia untuk meningkatkan kompetensi mahasiswa pada pengajaran Senyawa Asam Karboksilat sesuai tuntutan kurikulum berorientasi Kerangka Kualifikasi Nasional Indonesia (KKNI). Prosedur penelitian dilakukan melalui tahapan: (1) menyusun bahan ajar Senyawa Asam Karboksilat yang lengkap sesuai kurikulum KKNI, (2) menyusun paket proyek yang diintegrasikan dengan multimedia untuk memfasilitasi mahasiswa belajar aktif, (3) Implementasi pembelajaran menggunakan bahan ajar inovatif hasil pengembangan pada pengajaran Kimia Organik. Dari hasil penelitian telah tersedia paket bahan ajar yang inovatif berbentuk proyek mini yang diintegrasikan dengan multimedia untuk pengajaran Senyawa Asam Karboksilat. Pembelajaran Kimia Organik menggunakan bahan ajar hasil pengembangan terbukti sangat efektif dalam meningkatkan hasil belajar mahasiswa. Kelompok mahasiswa yang diberi perlakuan pembelajaran menggunakan bahan ajar inovatif berbentuk proyek mini dengan multimedia memiliki hasil belajar yang lebih tinggi dibandingkan terhadap kelompok mahasiswa yang diberi pembelajaran dengan metode konvensional. Pembelajaran berbasis proyek dengan multimedia dapat memfasilitasi mahasiswa belajar kimia organik secara aktif sehingga kemampuan berpikir kritis mahasiswa meningkat. Paket pembelajaran inovatif hasil pengembangan dapat membawa pengajaran Kimia Organik lebih sederhana, mudah dipelajari dan memberikan kesan pembelajaran yang lebih lama diingat oleh mahasiswa.
HUBUNGAN JENIS PERSALINAN DENGAN STATUS KESEHATAN BAYI BARU LAHIR DI KOTA BUKITTINGGI
Authors: Nurhayati Nurhayati
Published: August 2019

Every woman wants her labor to run smoothly and can give birth to a baby perfectly. Childbirth can run normally, but it is not uncommon for labor to experience obstacles and must be done through surgery. This means the fetus and mother are in an emergency and can only be saved if labor is performed by surgery. The purpose of this study is to find out the related to the health status of newborn babies at delivery in the City of Bukittinggi.

Type of analytic survey research with design cross-sectional.The object of the study was a newborn baby with Caesarean section and normal delivery at Bukittinggi City Hospital. The test used is thetest Chi-Square with a 95% confidence level.

The results showed that as many as 65 people (54.2%) had the incidence of asphyxia. 65 people (54.2%) had normal respiratory conditions, 62 people (51.7%) had meconium aspiration.63 people (52.5%) had trauma to an abnormal baby.64 people (53.3%) had infectious diseases. 70 people (58.3%) had IMD.72 people (60%) have joined care. 60 people (50%) with type of labor SC. Statistical tests showed that there was a relationship between apgar score (p = 0.003), respiratory conditions (p = 0.010), meconium aspiration (p = 0.0005), trauma in infants (p = 0.0005), joint care (p = 0.002 ) and IMD (p = 0.0005) for the type of labor. While infectious diseases do not have a relationship to the type of labor (p = 0.583).

It was concluded that there was a relationship between apgar score, respiratory condition, meconium aspiration, admission and IMD with different types of delivery. Expected to health workers especially midwives can be used as input in order to improve health status in newborns.
HUBUNGAN SIKAP DAN DUKUNGAN BIDAN DENGAN PELAKSANAAN INISIASI MENYUSU DINI DI BPS SE KECAMATAN PASAMAN KABUPATEN PASAMAN BARAT TAHUN 2017
Authors: Miharti Sari Ida
Published: August 2019

Early Breastfeeding Initiation is defined as the process of letting the baby suckle after birth. Early Breastfeeding Initiation coverage in West Sumatera is 74.6% and in West Pasaman District is 89.8%. Early Breastfeeding Initiation coverage in Pasaman District is 56.7% in 2016. This study aims to determine the relationship of attitude and support of midwife with Early Breastfeeding Initiation implementation. The type of this research is descriptive analytic with cross sectional approach. The research was conducted at BPS in Pasaman sub-district in August - September 2017. The study population was midwife who worked in BPS of Pasaman sub-district with total of 37 and sampling was total sampling, so the sample size was 37 people. Data collection was done by using questionnaires with guided interview method and observation on Early Breastfeeding Initiation implementation process. Data processing is done univariat and bivariate with Chi Square test. Based on the results of the study note that 37.8% of respondents have a negative attitude, 54.1% of respondents less support the implementation of Early Breastfeeding Initiation and 43.2% of respondents do not implement Early Breastfeeding Initiation. Chi Square test results obtained p value <0.005 for all bivariate analysis so it can be concluded that there is a relationship attitude and support midwife with the implementation of Early Breastfeeding Initiation. Based on the research, it can be concluded that there is a significant relationship between attitude and support of midwife with the implementation of IMD in BPS Pasaman Subdistrict Pasaman Barat Regency in 2017. It is expected that all midwives committed to implement Early Breastfeeding Initiation in accordance with established procedures and can increase the competence in helping the delivery especially in the application of Early Breastfeeding Initiation.
Presencia visible de la cámara en el documental latinoamericano
Authors: De los Ríos Valeria
Published: August 2019

Ya desde El hombre de la cámara (Vertov, 1929) la presencia visible de la cámara al interior del registro fílmico señala la irrupción autorreflexiva del dispositivo cinematográfico. En la película de Vertov, esta presencia constituye una reflexión a la vez técnica, estética y política acerca de las condiciones de producción en un contexto posrrevolucionario. En este artículo se analizará la presencia de la cámara en algunos documentales latinoamericanos en los que la figuración del dispositivo fílmico se hace visible y en donde esta presencia cumple un rol fundamental a nivel formal y narrativo. Específicamente este artículo se referirá a un noticiero, a La batalla de Chile de Patricio Guzmán, Agarrando pueblo (1977) de Luis Ospina y Carlos Mayolo, a Cabra marcado para morrer (1984) de Eduardo Coutinho y a la serie Como me da la gana de Ignacio Agüero que tuvo una versión en 1985 y otra en 2016.
Entre Valparaíso y Marilyn Monroe. Una reflexión sobre la creación de una editorial universitaria
Authors: Huirimilla-Thiznau Álvaro , Arros-Aravena Horacio Alejandro , Molina Serrano Rafael
Published: August 2019

En el artículo se presenta el inicio del trabajo productivo de la editorial Ediciones Universitarias de Valparaíso en el período que comprende los años 1969 a 1973, tiempo en que esta se erigió como uno de referentes editoriales del país. Se muestra que durante esos años, la editorial compartió algunas de las características e ideales del máximo exponente editor de la época, Quimantú, que representaba a su vez el ideario y las políticas desarrolladas desde el Estado en el gobierno de la Unidad Popular. Desde su plataforma regional, Ediciones Universitarias de Valparaíso se planteaba como una iniciativa orientada a modificar y complementar la visión de la producción editorial de la época, al convertirse en un vehículo para la transmisión de los procesos internos de la universidad al ámbito de la comunidad local y nacional, incorporando en su producción expresiones populares y de la contingencia nacional.
Codiseño de juguetes: Una experiencia de construcción social entre niños, educadores infantiles y diseñadores industriales
Authors: Escalante Barrios Elsa Lucía , Ruiz Bacca Miguel Angel , Anturi Linero Marilyn , Castro Alvarez Liliana María
Published: August 2019

El presente estudio de caso, de carácter cualitativo e intrínseco, tiene como propósito comprender el rol del niño en el proceso de codiseño de juguetes con profesionales en formación y docentes universitarios de los programas de pregrado de Diseño Industrial y Licenciatura en Pedagogía Infantil, desarrollados en el marco del espacio denominado Codiseño de juguetes, el cual constituye la unidad de análisis del presente estudio. Este espacio de carácter participativo, intergeneracional, multidisciplinario e inspirado en la filosofía Reggio Emilia, que fue desarrollado desde un enfoque transformativo y de justicia social, reveló que los niños participantes jugaron, principalmente, el rol de informantes en las etapas de reconocimiento de intereses del usuario e ideación del objeto, lo que permitió la identificación de affordances pragmáticos asociados a prototipos de juguetes. El rol activo del niño como sujeto de derecho se evidenció en el proceso, en la medida en que ejerció su derecho a la libre expresión y a la participación en los procesos de toma de decisiones en los aspectos asociados a las características y funcionalidad del futuro juguete. Las limitaciones del estudio y futuras direcciones respecto de esta temática también se discuten en este artículo.
Los ascensores de Valparaíso: movilidad, transporte público y desarrollo urbano (1880-1930)
Authors: Castillo Simón , Vila Muga Waldo Claudio
Published: August 2019

Este artículo explora los inicios y el desarrollo del sistema de funiculares de Valparaíso, el puerto chileno de mayor crecimiento en el siglo XIX e inicios del XX. El objetivo es dar cuenta de la trayectoria histórica de una modalidad de transporte público que tuvo vital importancia para el desarrollo de la movilidad en la ciudad y para el propio desarrollo urbano. A través de una metodología basada en la historia urbana, se revisa la implementación y el desarrollo de los ascensores (funiculares) a partir de la década de 1880, enfatizando en el cambio tecnológico que significó el desplazamiento en altura para una ciudad acostumbrada a la movilización mediante tranvías (primero a tracción animal y luego eléctricos), así como al uso de escaleras para peatones y animales de carga en los cerros. Una de las principales conclusiones de este artículo plantea que los ascensores tuvieron una distribución territorial socialmente diversa, al alcanzar las alturas de cerros con residentes de distinta condición y, en especial, aquellos habitados por clases populares. Hecho no menor, teniendo en cuenta que los otros servicios de transporte hasta entonces solo se desempeñaban en el Plan de la ciudad, arribando a los cerros recién a partir de la década de 1920 —mediante los autobuses—, precisamente cuando los ascensores comenzaron su proceso de obsolescencia.
Diseminasi Pola Pengelolaan Keuangan Rumah Tangga: Perencanaan Biaya Pendidikan
Authors: Komalasari Farida , Ganiarto Eko
Published: August 2019

How low the financial literacy of many housewives as the ones who are in charge of the family’s finance in Indonesia causes many families who do not have an educational financial planning. This causes how common it is for some people who could not go to school because of their family’s financial problem. The purpose of this program is to show how it is to maintain the family’s financial status, to increase the awareness of how important educational financial planning is and to show how to plan their children educational finance. This program was held on Sunday, Dec 2nd at 4.05-6.00 pm and was participated by 24 community members. The visit was done by giving lecture, quiz, question & answer, and discussion. The participants were really enthusiastic and active through the whole activity and wanting to attend the same activity with a different topic. An activity with different topic can be held with either the same or different community. The topics they suggested were how to save money, how to choose an insurance company, how to choose something to invest and how to raise children in a digital era.
Aspek Psikologi Pendelegasian Manajemen dan Manajemen Biaya Pabrik Roti “Yes” di UPK PIK Pulo Gadung Jakarta Timur
Authors: Hanif Hanif , Mulyani Mulyani , Karya Supriyanto , Brandinie Morryessa
Published: August 2019

The purpose of this program is to provide assistance in order to help businesses to solve their problems in business management. The approach used is observation, interview and discussion with the business founder/owner. The place is in the one of the business unit under the Unit Pengelola Kegiatan Pusat Industri Kecil (PIK), namely ” Yes" Cake Factory. The team managed and explored several problems in the business unit, which are related to book-keeping, work delegation and the control system planning, utilization of cost management such as unit cost calculations, cost control and break event point analysis, and profit-sharing policy. The team also provides a doable solution that can be implemented by the company.
Bergsonian Study: Time Experience According to Adolescence in Mansfield’s Stories
Authors: Jafari Maryam , Birgani Shiva Zaheri , Soqandi Mahnaz
Published: August 2019

With the advent of modernism and new philosophical and scientific ideas, the concept of time was treated in a new way. Bergson’s philosophy about time had a great influence on modernist writers and artist. One of the writers who were influenced by him is Katherine Mansfield. Therefore we could see Bergson’s theory of time used by her in her stories to convert her own messages. Katherine Mansfield was one of these writers that made use of different techniques in her stories in order to show time. She was much influenced by the French philosopher Henri Bergson and made use of his thoughts in her stories. This paper is going to present how Mansfield shows the concept of time in her stories and what strategies she uses to show the inner time and outer time of her characters. The study also wants to show effects of time on her characters and how being in a certain age of life, status and class in society affects the perceiving of time in people. The major concern of these stories is to show the significance of time according to Bergson’s linear and subjective theory of time. These stories show how characters experience duration in their mind and how the linear passage of time mainly affects them. The main purpose of this paper is to study the notion of time according to Bergson’s linear and subjective time in Mansfield’s stories. According to this theory there are two kinds of time, the spatial time and duration (inner time). Reality is only in the duration of individuals and the only way to achieve freedom is through duration.
Penjerapan Zat Warna Sintetis Menggunakan Karbon Aktif Kelapa Sawit Dan Pengembangannya Sebagai Bahan Ajar
Authors: Susanti Efa , Firdaus M.Lutfi , Sumpono Sumpono
Published: August 2019

This study aims to: (1) explain the ability of the active carbon absorption of Palm Oil Palm as a dye adsorbent Reactive Red and Direct Green (2) determines the pH, contact time, and weight of the optimum adsorbent and the influence of temperature using activated carbon. Reactive Red and Direct Green dyestuffs. (3) to explain the influence of video media usage on the improvement of learning result and critical thinking ability of students in Chemistry class XI MIPA E at SMAN 2 Kota Bengkulu. The procedure in this study is the activation of activated carbon of palm oil and activated, activated carbon characterization using FTIR, Determination of maximum wavelength (?), Calibration curve creation, Adsorption of substance by activated carbon of palm oil: determining pH, contact time, adsorbent weight, , adsorption isotherms, Determination of temperature effect, Adsorption Isotherm Determination, Determination of adsorption kinetics, Applications on dyestuffs. The data were analyzed. The result of pH variation, variation of adsorbent weight, and contact time were made curve so that pH, adsorbent weight, concentration and optimum contact time were obtained using Excel program. Using ANAVA one way, followed by KR-20 test and one sample t test. The results showed that there were: reactive red optimum wavelength 496 nm, optimum pH 3, optimum time 40 min, absorbent weight 150 mg, maximum absorbency KAPKS 32,73 mg / gr and direct green optimum wavelength 613 nm, with optimum pH 5, optimum time 40 minutes, absorbent weight 150 mg, maximum absorbency KAPKS 32.825 mg / gr. there is an increase of chemistry learning outcomes during the enrichment hours or outside of class hours and critical thinking skills of grade XI IPA E SMAN2 Kota Bengkulu using audio-visual media with average pretest score of 75 and average post test score 82.27 with four criteria critical thinking skills are less critical by 26%, critical enough 43%, critical 23% and very critical at 8%.
Pembelajaran Fisika Konsep Kalor Dengan Menggunakan Media Pirolisis Sampah Plastik Untuk Meningkatkan Ketrampilan Berpikir Kritis Siswa Di SMAN 3 Bengkulu Tengah
Authors: Kalsum Umi , Sundaryono Agus , Farid M
Published: August 2019

The objectives of this research are (1) to know the value of density, viscosity, fog point, oil absorption caloric, odor, color and fire sensitivity, in pyrolysis of plastic garbage from condenser one and two adsorbed using zeolite and activated charcoal, (2) the content contained in pyrolysis plastic waste oil adsorbed using active zeolite and charcoal, (3) knowing differences in critical thinking skills among students who learn to use guided inquiry learning model with students who study conventionally on physics learning. Convert plastic waste into fuel oil using a pyrolysis process with two water condensers, then plastic waste pyrolysis oil adsorbed using activated zeolite and charcoal. The results showed that the density value of the adsorbed oil for one condenser was 772 Kg / m3 and the condenser was 770 Kg / m3, the viscosity value of the adsorbed oil from the condenser one and two had the same value of 0.49 m2 / s, the fog point value oil that has been adsorbed on the condenser yield one and two is the same value that is -18oC, the calorific value of oil absorption, color, odor, and fire sensitivity shows the more adsorbent and the longer the adsorption process, the oil absorbs the smaller, , the odor does not sting, and the fire sensitivity gets smaller. GC-MS test results obtained the most compounds contained in pyrolysis oil plastic waste that has been adsorbed that is 1,3,5-trimethylcyclohexene. The implementation of physics learning on the concept of heat shows that there are differences in critical thinking skills in control and experiment class. Based on different test on posttest result the first material got 0,022 and postest second material equal to 0,047, the value is smaller than level of significance 0,05 so Ha accepted.
Studi Komunitas Nekton Di Kawasan Konservasi Kura-Kura Universitas Bengkulu Dan Pengembangan Pembelajaran Berbasis Lingkungan
Authors: Enersy Desi , Karyadi Bhakti , Winarni Endang Widi
Published: August 2019

This study aims to inventory the type of necton, knowing the structure of the necton community and measuring the critical thinking skills of students of class VII.1 SMPN 1 Ujan Mas Kepahiang. The results showed that the necton obtained from the Taman Pintar pond amounted to 7 species and Pipi Putih Pond totaling 4 species. The necton species in the Taman Pintar pond  with the highest KP, KS, and FK values are tin head fish with KP, KR, and FK values respectively  0.102 idv / m2, 75.71% and 83%. While on the Pipi Putih Pond is local catfish species with the value of KP, KR, FK of 0.01 idv / m2, 39.29% and 25%. Then dominance index (H ') in the Taman Pintar pond is 0.61 and C' Pipi Putih pond  = 0.76. While the index of diversity of necton species in both ponds also belonged to very low category with H’ value of Taman Pintar Pond = 0.28 and H' of Pipi Putih pond  = 0.17. The result of Percentage Of Agreement test showed that  environment-based learning tools developed are included in the category highly feasible to be tested. Students’ critical thinking ability on the perpormance aspect shows 33 ,3 % percentage including critically critical criteria and 66,7 % including critical criteria. While Students’ critical thinking ability on the cognitive aspect shows four criteria, that are very critical as 26 %, crittical criteria 40 %, criteria critical enough 27 % and  criteria less 7 %
Hubungan antara Kedalaman Permukaan Air Tanah dengan Salinitas di Pesisir Pantai Kungkai Baru serta Penggunaan Model Discovery Learning
Authors: Sudiro Sutijo Joko , Farid Muchammad , Swistoro Eko
Published: August 2019

ABSTRACT [Relationship between Groundwater Surface Depth with Salinity at the Coast of New Kungkai Beach and its Implementation on Discovery Learning Model]. The aims of this study were 1) to describe the relationship between groundwater surface depth with salinity in the coastal areas of new kungkai beach of Seluma, and 2) to determine the improvement of learning outcomes (cognitive) of high ability students, moderate and low by using discovery learning model on the concept of static fluid in class X computer and network engineering at SMK Negeri 3 Seluma. This research was a quasi experimental research with one groups pretest-posttest design. The results showed: 1) The relationship between depth with salinity has a value of 0.6478 with a significance level of 0.001 (<0.05); 2) Learning with discovery learning model can improve student learning outcomes on cognitive aspects (knowledge). Increased cognitive results can be seen from the average value of the initial test, the final test and the average value of gain in the class x Tkj is high-ability groups are at high criteria with a value of 0.75 gain in the group is in the criteria medium with the value of gain 0,52 and in the low group were in moderate criteria with a gain value of 0.44. There is a difference in learning outcomes between the high, medium and low groups. The difference is shown by Fcount > Ftable (4.04 > 3.35) with a significance level of 5%. Keywords: Groundwater surface depth; salinity; discovery learning model; SMKN 3 Seluma.
Penerapan Pembelajaran Outdoor dengan Pendekatan Saintifik untuk Meningkatkan Hasil Belajar Siswa SMPN 6 Kota Bengkulu
Authors: Rahyuni Rahyuni , Zamzaili Zamzaili , Ruyani Aceng
Published: August 2019

[Implementation of outdoor learning with saintific approach to improve student learning of SMPN 6 Bengkulu City]. The aims of this study was to know the results of scientific learning (outdoor) and see the comparison the value of students’s group who learn by using outdoor learning and groups of students who do not use outdoor learning. The subject of this research is the students of class VII SMPN6 Bengkulu City on academic year 2016/2017. The sample who taken are class VII G class control class VII H, experimental class, class VII E as a testing class. Sampling technique by purposive sampling. Instrument used double choice test instrument 25 problem,. The technique of data analysis using statistic Anova Mix (mixed Anova). Test normality by using test of covariance matrix. The average value of pretest of the experimental class students 62.1 after the average treatment of student postes increased to 86.25 which means an increase of 24.15. The control class Pretest and postes results Average score of pretest students 65,9 after conventional learning average student postes score increased to 75,5 which means an increase of 9.6. Student learning outcomes using outdoor learning method is higher than those not using the method, it is seen from the average experimental class value (80,75) bigger than control class (64,00) with increase of 26,37%.    Keywords: Outdoor learning; saintific approach; student learning outcomes.
Uji Aktivitas Ekstrak Biji Caesalpinia Sp terhadap Jumlah Eritrosit Mus musculus yang Diinfeksi Plasmodium berghei serta Implementasinya dalam Pembelajaran Kimia
Authors: Nurleli Nurleli , Sundaryono Agus , Ruyani Aceng
Published: August 2019

AbstraCT[Activity test of Caesalpinia sp seed extract on erythrocytes amount of Mus musculus infected by Plasmodium berghei and its implementation in chemistry learning]. The aims of this study were to (1) determine the activity of seed extract (Caesalpinia sp) on the number of Erythrocytes of M. Musculus of Swiss Webster Strain infected by P.berghei, (2) Find  the active compounds obtained from the isolation of Caesalpinia sp seed extract (3) Find the differences in student learning outcomes about the separation of secondary metabolites using thin layer chromatography (TLC) which is taught in chemistry learning by using LKS. In this study Caesalpinia sp seed extract was purified by thin layer chromatography and column coromatography, and was identified by IR and 1H-NMR spectroscopy. M. musculus infected with P. berghei was given Caesalpinia sp seed extract at a dose of 0.028 g/Kgbb, 0.056 g/Kgbb, and 0.084 g / Kgbb by gavage, while the positive control group was given Kloroquin diphosphate, negative control was given olive oil. Caesalpinia sp seed extract with a dose of 0.056 g/Kgbb inhibited the highest plasmodium, which was 42.89% and even exceeded the malaria drug commonly used chloroquin diphosphate 29.85%. Caesalpinia sp seed extract capable of reducing plasmodium in erythrocytes is also able to increase the number of uninfected erythrocytes. The active compounds obtained from the isolation of Caesalpinia sp seed extract are alkaloids, flavonoids, saponins, and terpenoids. In the implementation of extracurricular group learning is taught by using worksheets. There are significant differences where the average posttest score is 88.67 and the average pretest is 32.1. Keywords: Caesalpinia Sp.; Erythrocyte; Plasmodium berghei; Mus muscullus; Student working sheet.
Cover dan Kata Pengantar Jurnal Pendipa Vol.2 No.3 Edisi Oktober 2018
Authors: Pendipa Jurnal
Published: August 2019

Cover dan Kata Pengantar Jurnal Pendipa Vol.2 No.3 Edisi Oktober 2018
Peningkatan Hasil Belajar Siswa dengan Menerapkan Video Identifikasi Campuran Kopi Menggunakan Metode Spektroskopi UV-Visible
Authors: Aiman Ummu , Nirwana Nirwana , Firdaus M Lutfi
Published: August 2019

Abstract[Improvement of students learning outcomes by applying the video of coffee-mixture identification using UV-Visible Spectroscopy]. The purpose of this study was to evaluate the differences of student learning outcomes on electromagnetic wave materials and how students respond to the learning videos. This research was an experimental research which applies video coffee-mixture identification. The study was conducted in grade X islamic high school consisting of experimental class and control class. Based on the data analysis, the average post-test grade of the experimental class was 82.11 and the mean post-test control grade was 72.88 with tcount = 0,038 which is lower than the value of significance (0,05). The N-gain values of both classes indicate that the experimental class (0.72) is better than the control class (0.61). This suggests the adoption of a coffee-mixture identification video on electromagnetic wave material able to improve greater learning outcomes than control class that did not apply the video to the learning process. The result of questionnaire analysis shows that the student response to video implementation is good, as seen from the average score of responses of students who answered strongly agree at 40% level, while the answer agree at 53.83% level, not agree at 5.43% level and who answered very disagreeing 0.74% of all students. Keywords: Coffee-mixture; UV-Visible spectroscopy; electromagnetic waves; learning video.(Received August 15 2018; Accepted January 25, 2019; Published February 25, 2019) AbstrakPenelitian ini dilakukan dengan tujuan untuk menjelaskan perbedaan peningkatan hasil belajar siswa pada materi gelombang elektromagnetik dan bagaimana respon siswa terhadap video pembelajaran. Penelitian ini merupakan penelitian eksperimen yang menerapkan video identifikasi campuran kopi. Penelitian dilaksanakan di Madrasah Aliyah kelas X yang terdiri dari kelas eksperimen dan kelas kontrol. Berdasarkan hasil analisis data, rata-rata nilai post-test kelas eksperimen adalah 82,11 dan rata-rata nilai post-test kelas kontrol 72,88 dengan nilai thitung = 0,038 < nilai signifikansi (0,05). Adapun nilai N-gain dari kedua kelas menunjukkan bahwa pada kelas eksperimen  (0,72) lebih baik dari  pada kelas kontrol (0,61). Hal ini menunjukkan bahwa penerapan video identifikasi campuran kopi pada materi gelombang elektromagnetik dapat meningkatkan hasil belajar yang lebih besar dibandingkan kelas kontrol yang tidak menerapkan video pada proses pembelajarannya. Sedangkan hasil analisis angket diketahui bahwa respon siswa terhadap penerapan video adalah baik, terlihat dari nilai rata-rata respon siswa yang menjawab sangat setuju sebesar 40%, sedangkan yang menjawab setuju sebesar 53,83%, tidak setuju sebesar 5,43% dan  yang menjawab sangat tidak setuju sebesar 0,74% dari keseluruhan siswa. Kata kunci: Campuran kopi; spektroskopi UV-Vis; gelombang elekromagnetik; video pembelajaran
Identifikasi Respon Tanah terhadap Gelombang Gempa Bumi di Curup dan Implementasi Pembelajaran Fisika
Authors: Gusti Pio Kurnia , Farid Muhammad , Swistoro Eko , Koto Irwan
Published: August 2019

ABSTRACT[Identification of Soil Response to Earthquake Waves in Curup and its Implementation on Physics Learning]. Scientific research has been conducted in the Curup in five districts namely Selupu Rejang, center Curup, eastern Curup, southern Curup and Curup city. Curup city is a mountainous area located in the earthquake belt. The aim of research was to determine the level of vulnerability of land in the Curup city and to explain the difference in student learning outcomes XI IPA 1 and XI IPA 2 after participating in learning by using learning model Problem Based Learning (PBL) and Conventional Methods on the material elasticity. Seismic susceptibility index data values obtained from field research using HVSR microseismic tools. Data management using DATAPRO software and GEOPSY software. The result of the highest level of susceptibility to the soil is 4.18 and is located at the maximum temperature of the soil. The results of educational research show that there are differences in student learning outcomes taught with PBL learning models and conventional methods. The experimental class learning outcomes have an average value of 80.70, while the control class has an average value of 73.20. Keywords: Vulnerability; earthquake; PBL model.(Received August 14 , 2018; Accepted January 10, 2019; Published February 27, 2019)  ABSTRAKPenelitian sains telah dilakukan di Daerah Curup di lima kecamatan yaitu Selupu Rejang, Curup Tengah, Curup Timur, Curup Selatan dan Curup Kota pada tanggal 07 Agustus 2016. Kota Curup merupakan daerah pegunungan yang terletak pada jalur gempa. Tujuan penelitian untuk mengetahui tingkat kerentanan tanah di kota Curup dan Untuk menjelaskan Perbedaan hasil belajar siswa kelas XI IPA 1 dan XI IPA 2 setelah mengikuti pembelajaran dengan menggunakan model pembelajaran Problem Based Learning (PBL) dan Metode Konvensional pada materi elastisitas. Data nilai indeks kerentanan seismik diperoleh dari penelitian lapangan dengan menggunakan alat mikroseismik HVSR. Pengelolahah data menggunakan software DATAPRO dan software GEOPSY. Hasil tingkat kerentanan tanah tertinggi mencapai 4,18 dan terletak pada kecamatan Selupu Rejang. Hasil penelitian pendidikan menunjukkan terdapat perbedaan hasil belajar siswa yang diajarkan dengan model pembelajaran PBL dan metode konvensional. Hasil belajar kelas eksperimen memiliki nilai rata-rata 80,70, sedangkan kelas kontrol memiliki nilai rata-rata 73,20.Kata kunci: Kerentanan; gempa bumi; model PBL.
Aklimasi siebenrockiella crassicollis yang Akan Dikonservasi di Area ex situ Universitas Bengkulu
Authors: Jabidi Jabidi , Ruyani Aceng , Suhartoyo Hery
Published: August 2019

ABSTRACT[Acclimation of Siebenrockiella crassicollis in Conservation Area Ex Situ at Bengkulu University].  This study aims to determine the effect of pool water composition on the growth rate of S. crassicollis, which will be conservated in ex situ area of Bengkulu University campus. The turtles initially acclimated in the Sumber Belajar Ilmu Hayati (SBIH) Ruyani Bengkulu. The result of this research shows 50% of well water + 50% of pond water has the highest growth rate of S. crassicolis, but the difference of growth rate in each treatment group does not look different significantly. Thus, the pond water in the ex situ area of Bengkulu University can be recommended for use as an Ex situ Conservation site for S. Crassicollis.  Keywords: S. crassicolis; water pond; student work sheet.(Received August 10 , 2018; Accepted January 9, 2019; Published February 27, 2019) ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh pemberian komposisi air kolam terhadap laju pertumbuhan S.crassicollis, yang akan di konservasi di area ex situ Universitas Bengkulu. Penelitian ini telah dilakukan pada Maret 2017  – April 2017, diaklimasi di Sumber Belajar Ilmu Hayati (SBIH) Ruyani Bengkulu. Hasil penelitian ini adalah pemberian 50% air sumur + 50% air kolam memiliki tingkat laju pertumbuhan S. crassicolis paling tinggi,namun perbedaan rata-rata laju pertumbuhan pada setiap kelompok perlakuan tidak terlihat berbeda signifikan/tidak berbeda nyata. Sehingga, air kolam di area ex situ Universitas Bengkulu dapat direkomendasikan untuk digunakan sebagai lokasi konservasi Ex situ bagi S. crassicolis.Kata kunci : S. crassicolis; air kolam; lembar kerja siswa.
Identifikasi Jenis-jenis Herpetofauna di Taman Wisata Alam Gunung Permisan, Bangka Selatan, Provinsi Kepulauan Bangka Belitung
Authors: Irwanto Riko , Lingga Rahmad , Pratama Rama , Ifafah Salsa Annada
Published: August 2019

Abstract[Types of Herpetofauna Identification in the Gunung Permisan Nature Park, South Bangka, Bangka Belitung Islands Province]. The Nature Tourism Park, Gunung Permisan is a conservation area located in Permis Village, South Bangka Regency. This study was conducted to identify the types of herpetofauna diversity in Gunung Permisan. Herpetofauna are including reptile and amphibian classes, that played  an important role in maintaining the balance and sustainability of the ecosystem. The research method was using the exploration and Visual Encounter Survey. The type of herpetofauna was identified by observing the morphological differences. A total of 7 species consist of 5 species of the Amphibians and 2 species of the Reptiles have been collected from the research. These 7 species consist of two order Anura and Squamata. Anura has 2 families, including: Dicroglossidae and Ranidae. Squamata has 2 families, including Viperidae and Scincidae. The diversity of herpetofauna in the Gunung Permisan was medium category. Keywords: Gunung Permisan; Herpetofauna; Amphibian; Reptile.ABSTRAKTaman Wisata Alam Gunung Permisan merupakan wilayah konservasi yang berada di Desa Permis, Kabupaten Bangka Selatan.  Penelitian ini dilakukan untuk mengidentifikasi jenis keanekaragaman herpetofauna di Kawasan Gunung Permisan. Herpetofauna meliputi kelas reptil dan amfibi berperan penting dalam menjaga keseimbangan dan keberlangsungan ekosistem kawasan tersebut. Metode pengumpulan data menggunakan metode eksplorasi dan survey perjumpaan visual/VES. Identifikasi jenis herpetofauna dengan cara mengamati perbedaan morfologinya. Berdasarkan penelitian  yang telah dilakukan ada sebanyak 7 spesies herpetofauna yang ditemukan, meliputi 5 jenis spesies dari kelas Amphibi dan 2 jenis spesies dari kelas Reptil. Tujuh spesies ini terdiri atas ordo Anura dan Squamata. Ordo Anura terdapat 2 famili yaitu famili Dicroglossidae  dan Ranidae. Ordo Squamata terdapat 2  famili yaitu famili Viperidae dan Scincidae. Keanekaragaman herpetofauna di Kawasan Gunung Permisan termasuk  ke dalam golongan sedang.Kata kunci: Gunung Permisan; Herpetofauna; Amfibi; Reptil.
Functional diversity among herbivorous sea urchins on a coral reef: grazing rate, dietary preference, and metabolism
Authors: Lewis LS , Smith JE
Published: August 2019

Herbivores influence the structure and function of ecosystems, especially in the marine environment where ecosystems can be rapidly transformed due to the presence or absence of a single important grazer or grazing community. Intra-guild variation in the ecological functions of herbivores, however, likely determines their ultimate effects on benthic dynamics. For example, echinoids (sea urchins) can facilitate the growth of stony corals by consuming fleshy algal competitors, yet our understanding of taxonomic variation in their grazing behaviors remains limited. Here, we examined the trophic functions of 5 herbivorous echinoids on a coral reef in Maui, Hawaii. We conducted field-based assays to compare grazing rates and consumption profiles using several key algal functional groups and contrasted the results with reported differences in echinoid metabolism. Grazing rates varied among species by up to 10-fold, with taxonomic differences explaining 77-85% of the variation among individual urchins and metabolic rate explaining 81-98% of the taxonomic variation in mean biomass and energy ingestion rates. Though all species consumed several algae, they also exhibited distinct grazing behaviors. Species with lower metabolic rates exhibited the largest intraspecific variation in diets and showed no clear algal preferences. In contrast, species with higher metabolic rates consistently consumed or avoided specific macroalgae, indicating a positive relationship between metabolic rate and diet specificity. This phylogenetic variation in grazing and metabolism aligns with classic metabolic and foraging theory and suggests that species identity, community structure, and complementarity are likely key to understanding the functional roles of herbivorous echinoid communities on coral reefs.
The Failure of Foreign Policy Entrepreneurs in the Trump Administration
Authors: Haar Roberta , Krebs Lutz F.
Published: August 2019

The relationship a president has with the heads of his departments is a defining characteristic of a presidency. Policy entrepreneurs require presidential support and political capital to increase the chances of policy success. This paper argues that Donald J. Trump has established a contractor presidency that is encumbered by a number of scenarios originally identified in Laffin’s (1996) study of the policy failures of George H.W. Bush’s administration. This investigation begins by first presenting the contractor model as a possible presidential strategy, and then establishes that Trump has embraced the contractor presidency as his approach towards foreign policy. We then identify alternate scenarios for a failed contractor presidency and consider whether these explanations apply to Trump’s version. We find that two of the five scenarios apply to Trump’s unsuccessful foreign policy: lack of support for his appointed officials and the appointment of inexperienced loyalists.
Design Optimization of a Multi-Megawatt Wind Turbine Blade with the NPU-MWA Airfoil Family
Authors: Xu Jianhua , Han Zhonghua , Yan Xiaochao , Song Wenping
Published: August 2019

A new airfoil family, called NPU-MWA (Northwestern Polytechnical University Multi-megawatt Wind-turbine A-series) airfoils, was designed to improve both aerodynamic and structural performance, with the outboard airfoils being designed at high design lift coefficient and high Reynolds number, and the inboard airfoils being designed as flat-back airfoils. This article aims to design a multi-megawatt wind turbine blade in order to demonstrate the advantages of the NPU-MWA airfoils in improving wind energy capturing and structural weight reduction. The distributions of chord length and twist angle for a 5 MW wind turbine blade are optimized by a Kriging surrogate model-based optimizer, with aerodynamic performance being evaluated by blade element-momentum theory. The Reynolds-averaged Navier–Stokes equations solver was used to validate the improvement in aerodynamic performance. Results show that compared with an existing NREL (National Renewable Energy Laboratory) 5 MW blade, the maximum power coefficient of the optimized NPU 5 MW blade is larger, and the chord lengths at all span-wise sections are dramatically smaller, resulting in a significant structural weight reduction (9%). It is shown that the NPU-MWA airfoils feature excellent aerodynamic and structural performance for the design of multi-megawatt wind turbine blades.
Thermodynamic Analysis of the Air-Cooled Transcritical Rankine Cycle Using CO2/R161 Mixture Based on Natural Draft Dry Cooling Towers
Authors: Zhou Yingjie , Tang Junrong , Zhang Cheng , Li Qibin
Published: August 2019

Heat rejection in the hot-arid area is of concern to power cycles, especially for the transcritical Rankine cycle using CO2 as the working fluid in harvesting the low-grade energy. Usually, water is employed as the cooling substance in Rankine cycles. In this paper, the transcritical Rankine cycle with CO2/R161 mixture and dry air cooling systems had been proposed to be used in arid areas with water shortage. A design and rating model for mixture-air cooling process were developed based on small-scale natural draft dry cooling towers. The influence of key parameters on the system’s thermodynamic performance was tested. The results suggested that the thermal efficiency of the proposed system was decreased with the increases in the turbine inlet pressure and the ambient temperature, with the given thermal power as the heat source. Additionally, the cooling performance of natural draft dry cooling tower was found to be affected by the ambient temperature and the turbine exhaust temperature.