1,720,960 research outputs found
Eksperimen dan Perannya dalam Pemahaman Konsep Fisika
Full text linkIn IPA learning, especially physics, in addition to understanding theoretical physics concepts, student involvement through direct experience in learning as an actualization of the knowledge learned is very necessary. This actualization is realized through experimental activities that are expected to help students understand physics concepts more easily, more quickly, and longer remember them so that students are motivated to study physics further. Physics experimental activities can be carried out at various levels of education units, from Elementary School (SD)/equivalent, Junior High School (SMP)/equivalent, and Senior High School (SMA)/equivalent. Especially for Senior High School (SMA), students already have the ability to think abstractly, logically, and critically so that direct experience in learning physics will help improve these abilities. One such experience is experimentation. The existence of experiments will present natural phenomena as characteristics of physics into something easy to understand so that it is not only theoretical in its delivery. In this Community Service Activity, experiments are presented in physics learning. The results of the activity evaluation gave a positive response to the implementation of the activity, where students felt helped to understand several physics concepts through the role of the experiments that have been carried out so that students have a sense of interest and motivation to study IPA, especially physics further
Rancang Ketinggian Bangun Alat Pendeteksi Banjir Secara Dini Menggunakan Mikrokontroler Atmega8535 Dan Sensor Ultrasonik Srf05-Hy
Full text linkPenelitian ini bertujuan untuk merancang alat pendeteksi banjir yang dapat menentukan ketinggian banjir secara dini, dimana nilai ketinggiannya akan ditampilkan di LCD jika ketinggian banjir melebihi dari batas normal ( > 60 cm) maka LED merah akan menyala dan alarm akan bunyi. Pengukuran ketinggian banjir menggunakan sensor ultrasonic SRF05-HY yang diaktifkan untuk mendeteksi objek sehingga trigger akan diberikan logika 1, kemudian pulsa atau waktu akan diperoleh pada saat dipantulkan pada objek dan diterima kembali oleh sensor. Mikrokontroler atmega8535 akan mengola data waktu yang diperoleh dari sensor yang telah dikonversi menjadi data digital untuk mendapatkan nilai ketinggian banjir secara dini dan menampilkan hasil olahannya pada LCD. Simulasi perancangan dan pembuatan peralatan pendeteksi banjir secara dini berbasis mikrokontroler dengan memanfaatkan piranti elektronika ini dilakukan pada prototipe kaca dengan ukuran lebar 30 cm dan tinggi 75 cm. Dari data ketinggian awal yang diambil dengan ketinggian pada mistar 25 cm dan rata-rata ketinggian di ambil dengan alat pendeteksi 25.93 cm dengan status “dalam keadaan aman” dan LED hijau menyala. Sedangkan data dengan ketinggian air pada mistar 40 cm rata-rata ketinggian diambil dengan alat pendeteksi 40.17 cm dengan status “dalam keadaan hati-hati” dan LED kuning menyala. Data dengan ketinggian air pada mistar 60 cm sedangkan ketinggian dengan alat pendeteksi rata-rata 60.22 cm dengan status “Bahaya dan Buzzer berbunyi” dan LED merah menyala. Kinerja dari alat ini bekerja dengan baik dilihat dari kemampuan alat dalam mengukur ketinggian banjir
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
PERANCANGAN ALAT PENDETEKSI BANJIR MANDIRI BERBASIS SMS MENGGUNAKAN SENSOR ULTRASONIK DAN ARDUINO UNO
Full text linkPenelitian ini dilakukan untuk mempelajari perancangan piranti yang dapat melakukan pengukuran ketinggian air dan melaporkannya secara periodik kepada petugas pemantau. Perangkat dibangun dari rangkaian Arduino Uno dengan menggunakan sensor ultrasonik dan pelampung, sehingga ketinggian air dapat dideteksi melalui port ADC dari arduino uno. Hasil keluaran diumpankan ke komputer dan data dikirimkan melalui SMS. SMS akan langsung diterima oleh hand phone petugas. Ketika level air pada lokasi pemantauan melewati batas maka secara otomatis akan dikirimkan SMS peringatan sehingga petugas dapat mengantisipasi situasi di sekitar lokasi yang rawan banjir untuk membuka tutup pintu air atau memerintahkan evakuasi penduduk. Hasil pengujian alat menunjukkan bahwa perangkat telah dapat mengidentifikasi dan melakukan pengukuran ketinggian air secara otomatis. Alat telah layak digunakan sebagai prototype sistem deteksi banjir mandiri
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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