bluuebunny/crossref_metadata_2025_split huggingface dataset:
História da ciência, práticas discursivas e comunicação didática: uma breve reflexão
Authors: Belo José M.C. 
Published: January 2020

Resumo De que falamos quando pretendemos falar da história da ciência no ensino? Falamos do ensino da(s) ciência(s)? Falamos do ensino da história da ciência? Falamos de ambos? Se falamos do ensino de história da ciência, então poderíamos falar de todas as disciplinas (unidades curriculares) que constituem o currículo porque, de algum modo, a ciência – a sua história – é transversal a todas. Por outro lado, se falamos da história da ciência como adjuvante do ensino das ciências - do lugar que a história da ciência deve ocupar no quadro do ensino das ciências - então estaremos a falar de algo bem diferente que tem merecidamente ocupado muitos dos que se preocupam com estas questões. Pela nossa parte, na necessariamente breve reflexão que vamos efetuar, tentaremos pôr em relevo, por um lado, a importância do conhecimento do desenvolvimento histórico da atividade científica como elemento agregador e motivador para todos os estudantes de ciências, ao mesmo tempo que evidenciaremos o modo como o discurso didático está carregado de elementos causadores de ruído no processo de comunicação didática. Palavras-chave: história da ciência; comunicação didática; paradigmas Abstract What do we talk about when we want to talk about the history of science in education? Are we talking about science(s) teaching? Are we talking about the teaching of the history of science? Are we talking about both? If we talk about the teaching of the history of science, then we could speak of all the disciplines (curricular units) that constitute the curriculum because, in some way, science - its history - is transversal to all of them. On the other hand, if we speak of the history of science as an adjunct to science teaching - the place that history of science must occupy in science teaching - then we are talking about something quite different that has deservedly occupied many of those who care about these issues. On our part, in the necessarily brief reflection that we are going to make, we will try to highlight, on the one hand, the importance of the knowledge of the historical development of scientific activity as an aggregator and motivator for all students of science, and, at the same time, we will try to show the way as the didactic discourse is loaded with elements that cause noise in the process of didactic communication. Keywords: history of science; didactic communication; paradigms
O conceito de derivada: uma análise através dos programas curriculares do século XX
Authors: Aires Ana Paula Florêncio 
Published: January 2020

ResumoNesta comunicação pretendemos analisar, guiados pelo filão histórico e tendo como intervalo temporal o séc. XX, a importância e evolução do conceito de derivada, desde a sua introdução, em 1905, nos programas oficiais de Matemática do 3.o Ciclo do Ensino Liceal, atualmente designado de Ensino Secundário. Temos como cenário um período marcado por significativas mudanças de regime político, que tiveram repercussões muito efetivas no ensino em geral, e no ensino da matemática em particular. Este estudo permitiu-nos concluir que a evolução do conceito de derivada nos programas curriculares de Matemática não foi linear, antes pelo contrário, verificamos progressos e retrocessos, indecisões e dúvidas, muito fruto das várias reformas de ensino que ocorreram durante o séc. XX. Palavras-chave: Derivada, Matemática, Ensino secundário, Programas curriculares. Abstract In this communication we intend to analyze, guided by the historical lode and having as time interval the 20 th century, the importance and evolution of the concept of derivative, since its introduction in 1905, in the official programs of Mathematics of high school, currently designated as secondary education. We have as scenario a period marked by significant changes of political regime, which had very effective repercussions in the teaching in general, and in the teaching of mathematics in particular. This study allowed us to conclude that the evolution of the concept of derivative in the official Mathematics programs was not linear, but on the contrary, we verified progress and setbacks, indecisions and doubts, much fruit of the various educational reforms that occurred during the 20th century.Keywords: Derivative, Mathematics, Secondary education, Curricular programs.
IDENTIFIKASI BAWAH PERMUKAAN LAPANGAN MINYAK“HUF” SUMATERA SELATAN UNTUK MENDELINIASI STRUKTUR CEKUNGAN HIDROKARBON BERDASARKAN DATA GAYABERAT
Authors: Setiawan Ade , Mulyatno Bagus Sapto 
Published: January 2020

Oil field research in regional Banyuasin “HUF” , South Sumatra have been done by the gravity data with objective of knowing fault structure based on analysis of hydrocarbon SVD and knows hollow structure based on the 3D model of the Bouguer Anomaly and Residual Anomaly. Study areas had Bouguer Anomaly between 13 mgal up to 33 mgal to the interval 1 mgal, where the value of Bouguer Anomaly high have a range value 26 mgal up to 33 mgal which is in the direction of west. While the low value of Bouguer Anomaly have a range value 13 mgal to 20 mgal that is in the east. To knew the existence of structure fault, filtering Second Vertical Derivative (SVD) on a Bouguer Anomaly, Regional and Residua mapl.Pattern of structure fault indicated the contours of a zero value and between the high and low contours. From the results of the analysis SVD Complete Bouguer Anomaly and SVD Residual Anomaly there were 4 (four) fault, while from SVD Regional Anomaly there are 3 (three) fault. 3D modeling the Residual Anomaly were conducted to prove the existence of the fault SVD analyzed based on the results of the analysis and to know the hydrocarbon basin. Based on the results of the inversion of 3D the Residual Anomaly, basin was found in the depth of 1500 m – 3000 m with a value of the density ranges from 2.24 gram/cc until 2.32 gram/cc which identified as sandstone basin.
PEMODELAN DAN ANALISA STRUKTUR BAWAH PERMUKAAN DAERAH PROSPEK PANASBUMI KEPAHIANG BERDASARKAN METODE GAYABERAT
Authors: Sihombing Roy Bryanson , Rustadi Rustadi 
Published: January 2020

Research has been conducted in Kepahiang area using gravity data with the aim of identify faults based on analysis of the Second Vertical Derivative (SVD) and interpreting structure sub-surface of the based on 3D inverse modelling from Bouguer anomaly and residual anomaly. The research area have an Bouguer anomaly between 38 mGal - 74 mGal, where the high Bouguer anomaly value has a value range of 63,2 mGal - 74 mGal located in the southwest direction of the research area. Whereas the low Bouguer anomaly value has a range of values 38 mGal - 47 mGal located in the north of the research area. To know the existence of fault structure in research area, conducted filtering Second Vertical Derivative (SVD) on the map Bouguer anomaly, regional and residual. The structure faulting is shown with contour of zero and between the contours of high and low. From the analysis of SVD complete anomaly Bouguer and SVD residual anomaly there are 8 (eight) faulting, while from SVD regional anomaly there are 4 (four) fault. 3D inversion modeling of the residual anomaly was done to prove the existence of the fault analyzed based on filtering Second Vertical Derivative (SVD). Based on the results of inversion 3D residual anomaly been gained one (1) reservoir in a northern direction research area and two (2) in the direction of west the research area by a contrast the density of -0,0719356 gr/cc until -0,236053 gr/cc with a depth of 0 meters up to 4.705 meters.
ESTIMASI SEBARAN HIDROKARBON DENGAN MENGGUNAKAN INDIKATOR P-WAVE DIFFERENCE DISPERSION FACTOR PADA LAPANGAN BONAPARTE
Authors: Erlangga Mokhammad Puput , Handoyo Handoyo , Wijaksono Egie 
Published: January 2020

In the hydrocarbon exploration, we need the method that result the direct hydrocarbon indicator to estimate the reservoir location and dimension accurately. It is a difficult and long standing problem. The method that used before was inverting the linearized of Zoepprit’s equation. But this method would not result the physical property depend on frequency. We know that the seismic wave propagate in the porous and fluid saturated media will attenuate and wave dispersion. This phenomenon is caused by the dissipation of seismic energy that depend on frequency. So by this idea, we will use the frequency-dependent of physical property to improve the accuracy of direct hydrocarbon indicator. The physical property will be used here is the P-Wave velocity. The method is call the P-Wave Difference Dispersion Factor (PPDF).
ANALISIS KINERJA SAHAM SEBAGAI DAMPAK DARI DETERMINASI NON PERFORMING LOAN TERHADAP PROFITABILITAS
Authors: Munawar Andri Helmi , Maulana Yogi Sugiarto 
Published: January 2020

Fundamental performance of the banking sector which is proxied by CAMEL analysis is an indicator that is able to assess the level of soundness of a company that has an impact on the potential performance of a company's stock portfolio. This article wants to reveal how companies can understand how to improve company performance and improve performance on company performance. The sample in this study uses purposive sampling, secondary data on financial statements of PT Bank Negara Indonesia (Persero) Tbk with a study period of 2007-2017, research using quantitative methods with explanatory methods, analysis techniques using path analysis. The results of this study indicate that non-performing loans have a significant effect on return on assets, but partially both the effects of non-performing loans and return on assets are not significant on stock prices. The existence of mediation variables in this study does not become a significant influence on changes in stock prices, meaning that there is no significant non-performing loan effect on stock prices with return on assets as an intervening variable.. Kinerja fundamental sektor perbankan yang diproksikan dengan analisis CAMEL merupakan indikator yang mampu menilai tingkat kesehatan suatu perusahaan yang tentunya ber-impact terhadap kinerja potofolio saham perusahaan. Penelitian ini ingin mengungkap bagaimana perusahaan dapat mengetahui dampak kinerja fundamental salah satu aktiva produktif yang berisiko (non performing loan) terhadap profitabilitas bank dan dampaknya pada performance saham perusahaan. Sampel pada penelitian ini menggunakan purposive sampling, data sekunder laporan keuangan PT Bank Negara Indonesia (Persero) Tbk dengan periode waktu penelitian 2007-2017, pendekatan penelitian menggunakan kuantitatif dengan metode eksplanatori, teknik analisis menggunakan analisis jalur. Hasil penelitian ini menunjukkan non performing loan memiliki pengaruh signifikan terhadap return on asset, namun secara parsial baik pengaruh non performing loan dan return on asset tidak signifikan terhadap harga saham. Keberadaan variabel mediasi dalam penelitian ini tidak menjadi pengaruh berarti terhadap perubahan harga saham, artinya tidak terdapat pengaruh signifikan non performing loan terhadap harga saham dengan return on asset sebagai variabel intervening.
ANALISIS KREDIT USAHA RAKYAT PADA BANK RAKYAT INDONESIA
Authors: . Suryanto 
Published: January 2020

This study aims to analyze the procedure for granting people's business credit (KUR) to Bank Rakyat Indonesia (BRI). The research method used in this study is a qualitative method with a type of descriptive research. The data obtained in this study uses research instruments, namely through observation, in-depth interviews, and documentation studies. Interviews were conducted with the Micro and Small Director of Bank BRI, debtor representatives and prospective debtors, as well as Bank Indonesia Representative Credit Section Bandung. Data collected from several sources carried out credibility testing with data triangulation — data analysis techniques used with data reduction, data presentation, and conclusions. The results of the study indicate that the implementation of the provision of people's business loans to Bank BRI through several stages, namely the stages of credit administration, credit documentation, credit approval, credit processing. The level of Non-Performing Loans (NPL) of BRI KUR shows a fairly large number of 2.31%, but among other KUR executing banks BRI's NPL is the smallest. The high level of NPL is because there are several factors, including: (1) wrong perceptions among Micro, Small and Medium Enterprises (MSME) actors regarding the source of funds in KUR distribution; (2) changes in the character of the debtor; and (3) the account officer section conducts a subjective analysis because there are certain relationships with prospective debtors Penelitian ini bertujuan untuk menganalisis prosedur pemberian kredit usaha rakyat (KUR) pada Bank Rakyat Indonesia (BRI). Metode penelitian yang digunakan dalam penelitian ini adalah metode kualitatif dengan jenis penelitian deskriptif. Data yang diperoleh pada penelitian ini menggunakan instrumen penelitian yaitu melalui observasi, wawancara mendalam dan studi dokumentasi. Wawancara dilakukan dengan Direktur Mikro dan Kecil Bank BRI, perwakilan debitur dan calon debitur, serta Bagian kredit Bank Indonesia Perwakilan Bandung. Data yang terkumpul dari beberapa sumber dilakukan pengujian kredibilitas dengan triangulasi data. Teknik analisis data yang digunakan dengan reduksi data, penyajian data, dan kesimpulan. Hasil penelitian menunjukkan bahwa pelaksanaan pemberian kredit usaha rakyat pada Bank BRI melalui beberapa tahapan yaitu tahap credit administration, credit documentation, credit approval, credit processing. Tingkat Non Performing Loan (NPL) KUR BRI memperlihatkan angka yang cukup besar yaitu 2,31%, tetapi diantara bank pelaksana KUR yang lainnya NPL Bank BRI yang paling kecil. Tingginya tingkat NPL dikarenakan adalah ada beberapa faktor, antara lain: (1) persepsi yang salah dikalangan pelaku Usaha Mikro Kecil dan Menengah (UMKM) mengenai sumber dana dalam penyaluran KUR; (2) adanya perubahan karakter debitur; dan (3) bagian account officer melakukan analisis secara subjektif karena ada hubungan tertentu dengan calon debitur.
Influence of Honking on the Road Traffic Noise Generated at Urban Rotaries for Heterogeneous Traffic
Authors: Aditya Kamineni , Chowdary Venkaiah 
Published: January 2020

Abstract
This paper presents a study conducted at major rotaries for quantifying the traffic noise levels by considering the vehicle volume and their respective honking as governing parameters for heterogeneous traffic. Traffic volume and traffic noise data was collected using a digital video camera and a class 1 sound level meter, respectively. The traffic noise data was analysed using noise tools for identifying the noise level variation. The data collected was subjected to statistical analysis for light, medium and heavy vehicles, and their contribution towards noise levels is proven to be effective with the forthright fact that, heavy vehicles and their corresponding honking were majorly affecting the equivalent noise level compared to other vehicular proportion. An equivalent noise level [LAeq (dB)] rise of 2 to 6 dB (A) is solely caused by heavy vehicles, which is an important observation to be considered for traffic noise analysis at the rotaries. Based on the obtained results from one of the rotaries, noise prediction model is developed for estimating the LAeq (dB), which is able to predict the noise levels with good precision when validated with the data collected at second rotary intersection for different vehicle volumes.
On the identity and phylogenetic position of Dero indica (Clitellata: Naididae)
Authors: Srinivasan Sivabalan , Martinsson Svante , Naveed Mohammed Ibrahim 
Published: January 2020

AbstractThe identity and validity of the freshwater worm Dero indica (Clitellata: Naididae; Naidinae) has been debated, and it has been suggested that it is likely to be identical with D. digitata. In this study we combine a newly generated COI sequence of D. indica with available sequences from GenBank, to estimate the phylogeny of Dero using both Bayesian Inference and Maximum Likelihood. The trees show that D. indica is well separated from D. digitata, instead it is closest to D. vaga, but with low support. Furthermore, the analyses confirm the close relationship between Dero and Branchiodrilus found in previous studies, and indicates the presence of cryptic species in D. furcata and D. digitata.
Deskripsi Sikap Kemandirian Siswa terhadap Mata Pelajaran IPA Pada Materi Pesawat Sederhana
Authors: Hastirani Rahma Julia , Nurhafizah Nurhafizah 
Published: January 2020

ABSTRAK Tujuan dari penelitian ini adalah untuk menganalisis gambaran sikap kemandirian terhadap mata pelajaran IPA, yaitu fisika pada materi pesawat sederhana. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan kualitatif dengan metode deskriptif. Penelitian ini menggunakan teknik pengambilan sampel, yaitu total sampling. Hal yang diamati dalam penelitian ini adalah sikap kemandirian siswa kelas VIII SMPN 09 Muaro Jambi terhadap mata pelajaran IPA. Instrumen yang digunakan pada penelitian ini ialah lembar observasi berupa angket karakter kemandirian terhadap mata pelajaran IPA yang sudah di validasi oleh validator ahli. Angket sikap ini dilakukan dengan menggunakan pengukuran skala likert. Penilaian skala likert adalah sangat setuju (SS), setuju (S), tidak setuju (TS), dan sangat tidak setuju (STS). Hasil penelitian yang dilakukan mengenai sikap kemandirian siswa terhadap mata pelajaran IPA di SMPN 09 Muaro Jambi. Deskripsi sikap kemandirian siswa berada pada kategori sangat baik. Dilihat dari statistik deskriptif mulai dari mean, modus, median, skor minimum dan skor maksimum yang telah dilihat dan dibandingkan dari dua kelas yang berbeda yaitu kelas VIII B dan VIII C dengan jumlah siswa 53 orang. Kata kunci: Sikap Kemandirian, Materi Pesawat Sederhana ABSTRACTThe purpose of this study was to analyze the description of the attitude of independence towards natural science subjects, namely physics in simple aircraft matter. The approach used in this study is a qualitative approach with descriptive methods. This study uses sampling techniques, namely total sampling. The thing observed in this study is the attitude of the independence of class VIII Muaro Jambi SMPN 09 towards science subjects. The instrument used in this study is the observation sheet in the form of a character questionnaire of independence for science subjects that have been validated by expert validators. This attitude questionnaire is done using the Likert scale measurement. Likert scale assessments are strongly agree (SS), agree (S), disagree (TS), and strongly disagree (STS). The results of the research were conducted on the attitude of students' independence towards science subjects at Muaro Jambi Middle School 09. The description of students' independence attitude is in a very good category. Viewed from descriptive statistics starting from the mean, mode, median, minimum score and maximum score that has been seen and compared from two different classes namely class VIII B and VIII C with a total of 53 students. Keywords: Attitude Of Independence, Simple Aircraft Matter
Mengidentifikasi Karakter “Menghargai Prestasi” Peserta Didik Kelas VIII SMP N 5 Muaro Jambi
Authors: Sutomo Wenny , Milyani Vetty 
Published: January 2020

ABSTRAKPenelitian ini bertujuan untuk mengidentifikasikan karakter peserta didik, terutama karakter menghargai prestasi peserta didik kelas VIII SMP N 5 Muaro Jambi. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan kuantitatif. Sedangkan jenis penelitian yang digunakan yaitu jenis penelitian survei dengan instrumen penelitian berupa angket. Subjek penelitian ini adalah peserta didik kelas VIII A dan VIII E SMP N 5 Muaro Jambi, dengan jumlah total responden sebanyak 45 responden. Teknik analisis data yang digunakan yaitu teknik analisis statistik deskriptif. Sedangkan hasil penelitian menunjukkan bahwa angket karakter menghargai prestasi peserta didik digolongkan dalam kategori “sangat baik”. Pada kelas VIII A, terdapat 16,7 % pernyataan yang dijawab dengan baik oleh peserta didik, dan terdapat 83,3 % pernyataan yang dijawab dengan sangat baik oleh peserta didik. Sedangkan pada kelas VIII E, terdapat 25,9 % pernyataan yang dijawab dengan baik oleh peserta didik, dan terdapat 74,1 % pernyataan yang dijawab dengan sangat baik oleh peserta didik. Berdasarkan hasil angket tersebut, dapat disimpulkan bahwa peserta didik SMP N 5 Muaro Jambi, khususnya kelas VIII A dan VIII E, telah memiliki sikap yang sangat baik dalam menghargai prestasi. Kata Kunci: Karakter, Menghargai Prestasi, Peserta Didik, Pendidikan ABSTRACTThis study aims to identify the character of students, especially the character of respecting the achievements of class VIII students of SMP N 5 Muaro Jambi. The approach used in this study is a quantitative approach. While the type of research used is the type of survey research with research instruments in the form of questionnaires. The subjects of this study were students of class VIII A and VIII E SMP N 5 Muaro Jambi, with a total number of respondents as many as 45 respondents. The data analysis technique used is descriptive statistical. The results of the study indicate that character questionnaires value achievement classified in the category of "very good". In class VIII A, there were 16.7% statements that were answered well by students, and there were 83.3% statements that were answered very well by students. Whereas in class VIII E, there were 25.9% of statements answered well by students, and there were 74.1% statements that were answered very well by students. Based on the results of the questionnaire, it can be concluded that the students of SMP N 5 Muaro Jambi, especially classes VIII A and VIII E, have had a very good attitude in respecting achievement. Keywords: Character, Respect for Achievement, Students, Education