195 research outputs found
Lithofacies and depositional environment spanning the Cretaceous-Paleogene boundary on the New Jersey coastal plain
No full textThe sedimentary record spanning the Cretaceous-Paleogene (K/Pg) boundary was examined in outcrop and in seven cores recovered from a 50 km long transect along the outcrop belt on the New Jersey coastal plain. The objectives were to: (1) conduct a high-resolution study of the K/Pg lithofacies, (2) document spatial and temporal changes in composition and texture of the sediments, and (3) interpret any changes in the depositional environment across this important geological boundary when a mass extinctions occurred. Analyses include core description, textural, petrographic, microprobe, and XRD analyses. Five lithofacies were interpreted in the Upper Cretaceous sediments and three lithofacies were recognized from the lowermost Paleogene deposits. Microprobe studies show the chemistry of Upper Cretaceous and lowermost Paleogene glauconite are identical (~7-8% K2O), but their color difference may suggest different redox condition. XRD analyses show the Upper Cretaceous clay contains more land-derived detritus than the lowermost Paleogene clay. The following sequence of events is interpreted from the sediment record spanning the K/Pg boundary: (1) deposition in near-shore setting and slow sedimentation in middle shelf when sea level was falling, albeit still shelfal depth; (2) deposition of K/Pg lithofacies when sea level was falling possibly creating a diastem but not a sequence boundary, per se; (3) a transgression above the K/Pg boundary; and (4) deposition in middle shelf possibly with decreased ocean productivity and a more reducing environment. There is no sedimentological evidence above the K/Pg boundary, suggesting tsunami-related deposition associated with a bolide impact. Either a tsunamite was eliminated by bioturbation, or NJCP was too far from the impact site to be affected. A transgressive lag, instead, was formed by normal sedimentation during the subsequent transgression in the early Paleocene.M.S.Includes bibliographical referencesby Hendra Wahyud
Analysis of Hendra Virus Fusion Protein N-Terminal Transmembrane Residues
No full textHendra virus (HeV) is a zoonotic enveloped member of the family Paramyoxviridae. To successfully infect a host cell, HeV utilizes two surface glycoproteins: the attachment (G) protein to bind, and the trimeric fusion (F) protein to merge the viral envelope with the membrane of the host cell. The transmembrane (TM) region of HeV F has been shown to have roles in F protein stability and the overall trimeric association of F. Previously, alanine scanning mutagenesis has been performed on the C-terminal end of the protein, revealing the importance of β-branched residues in this region. Additionally, residues S490 and Y498 have been demonstrated to be important for F protein endocytosis, needed for the proteolytic processing of F required for fusion. To complete the analysis of the HeV F TM, we performed alanine scanning mutagenesis to explore the residues in the N-terminus of this region (residues 487–506). In addition to confirming the critical roles for S490 and Y498, we demonstrate that mutations at residues M491 and L492 alter F protein function, suggesting a role for these residues in the fusion process
RETRACTION: Analisis Fungsi Harian Serambi Indonesia pada Masyarakat Desa Doy Kecamatan Ulee Kareng Kota Banda Aceh
No full textRETRACTION TO:Jailani, A., Hendra, Y., & Priadi, R. (2020). RETRACTION: Analisis Fungsi Harian Serambi Indonesia pada Masyarakat Desa Doy Kecamatan Ulee Kareng Kota Banda Aceh. JURNAL SIMBOLIKA: Research and Learning in Communication Study, 6(2), 96-106. doi:https://doi.org/10.31289/simbollika.v6i2.3635This article has been retracted by the publisher based on the following reason:This is based on the editor that the author has committed acts of violation of publication ethics. The author has published a triple publication by submitting the same article to one journals before and one journal after. The author admits that he forgot to have submitted the same article to another journal. This article also has published in the1. Jurnal Ilmiah Komunikasi CommuniqueJAILANI, A., Hendra, Y., & Priyadi, R. (2020). Analisis Implementasi Fungsi Media Massa Pada Harian Serambi Indonesia. Jurnal Ilmiah Komunikasi Communique, 2(2), 85-93. Retrieved from http://ejurnal.stikpmedan.ac.id/index.php/JIKQ/article/view/282. PERSEPSI: Communication Journal, Vol .3 No. 2, 2020, 103-112, DOI: 10.30596/persepsi.v%vi%i.4447(Analisis Fungsi Harian Serambi Indonesia Pada Masyarakat Desa Doy Kecamatan Ulee Kareng Kota Banda Aceh | Jailani | Persepsi: Communication Journal (umsu.ac.id)One of the conditions of submission of a paper for publication in this journal is that authors declare explicitly that their work is original and has not appeared in a publication elsewhere, and also not considered by another journal. As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter, and apologies are offered to readers of the journal that this was not detected during the submission dan publication process
RETRACTION: Analisis Fungsi Harian Serambi Indonesia pada Masyarakat Desa Doy Kecamatan Ulee Kareng Kota Banda Aceh
No full textRETRACTION TO:Jailani, A., Hendra, Y., & Priadi, R. (2020). RETRACTION: Analisis Fungsi Harian Serambi Indonesia pada Masyarakat Desa Doy Kecamatan Ulee Kareng Kota Banda Aceh. JURNAL SIMBOLIKA: Research and Learning in Communication Study, 6(2), 96-106. doi:https://doi.org/10.31289/simbollika.v6i2.3635This article has been retracted by the publisher based on the following reason:This is based on the editor that the author has committed acts of violation of publication ethics. The author has published a triple publication by submitting the same article to one journals before and one journal after. The author admits that he forgot to have submitted the same article to another journal. This article also has published in the1. Jurnal Ilmiah Komunikasi CommuniqueJAILANI, A., Hendra, Y., & Priyadi, R. (2020). Analisis Implementasi Fungsi Media Massa Pada Harian Serambi Indonesia. Jurnal Ilmiah Komunikasi Communique, 2(2), 85-93. Retrieved from http://ejurnal.stikpmedan.ac.id/index.php/JIKQ/article/view/282. PERSEPSI: Communication Journal, Vol .3 No. 2, 2020, 103-112, DOI: 10.30596/persepsi.v%vi%i.4447(Analisis Fungsi Harian Serambi Indonesia Pada Masyarakat Desa Doy Kecamatan Ulee Kareng Kota Banda Aceh | Jailani | Persepsi: Communication Journal (umsu.ac.id)One of the conditions of submission of a paper for publication in this journal is that authors declare explicitly that their work is original and has not appeared in a publication elsewhere, and also not considered by another journal. As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter, and apologies are offered to readers of the journal that this was not detected during the submission dan publication process
SISTEM INFORMASI GEOGRAFIS OBJEK WISATA KABUPATEN PEMALANG
No full textPemalang merupakan salah satu kabupaten di Provinsi Jawa Tengah yang terletak di pantai utara Pulau Jawa. Proses penyebaran informasi tempat wisata Kabupaten Pemalang selama ini dilakukan dengan cara pemasangan spanduk dijalan kota, baliho yang biasanya terpasang di perbatasan Kota Pemalang bahkan brosur, dimana tingkat efektifitasnya sangat kurang. Penyebaran ini seharusnya dilakukan dengan memanfaatkan kemajuan teknologi informasi. Salah satu konsep teknologi informasi yang dapat digunakan sebagai media penyebaran informasi objek wisata di Kabupaten Pemalang adalah Sistem Informasi Geografis (SIG). Sistem Informasi Geografis (SIG) adalah sistem informasi yang digunakan untuk memasukkan, menyimpan, memanggil kembali, mengolah, menganalisis dan menghasilkan data bereferensi geografis atau data geospatial, untuk mendukung pengambilan keputusan dalam perencanaan dan pengelolaan penggunaan lahan, sumber daya alam, lingkungan, transportasi, fasilitas kota, dan pelayanan umum lainnya. Dengan Sistem Informasi Geografis berbasis web yang dibuat menggunakan bahasa pemrograman PHP dan database My SQL maka proses penyebaran informasi geografis objek wisata dapat dilakukan secara online melalui website sehingga proses penyebaran informasi lebih efektif danefisien. Kata Kunci :Sistem Informasi Geografis, Objek Wisata, Kabupaten PemalangPemalang merupakan salah satu kabupaten di Provinsi Jawa Tengah yang terletak di pantai utara Pulau Jawa. Proses penyebaran informasi tempat wisata Kabupaten Pemalang selama ini dilakukan dengan cara pemasangan spanduk dijalan kota, baliho yang biasanya terpasang di perbatasan Kota Pemalang bahkan brosur, dimana tingkat efektifitasnya sangat kurang. Penyebaran ini seharusnya dilakukan dengan memanfaatkan kemajuan teknologi informasi. Salah satu konsep teknologi informasi yang dapat digunakan sebagai media penyebaran informasi objek wisata di Kabupaten Pemalang adalah Sistem Informasi Geografis (SIG). Sistem Informasi Geografis (SIG) adalah sistem informasi yang digunakan untuk memasukkan, menyimpan, memanggil kembali, mengolah, menganalisis dan menghasilkan data bereferensi geografis atau data geospatial, untuk mendukung pengambilan keputusan dalam perencanaan dan pengelolaan penggunaan lahan, sumber daya alam, lingkungan, transportasi, fasilitas kota, dan pelayanan umum lainnya. Dengan Sistem Informasi Geografis berbasis web yang dibuat menggunakan bahasa pemrograman PHP dan database My SQL maka proses penyebaran informasi geografis objek wisata dapat dilakukan secara online melalui website sehingga proses penyebaran informasi lebih efektif danefisien. Kata Kunci :Sistem Informasi Geografis, Objek Wisata, Kabupaten Pemalan
Popularity, media and electability: study of Alfiansyah Komeng in the election of members of the Regional Representative Council (DPD) in West Java / Hendra, Mudiyati Rahmatunnisa and Ratnia Solihah
No full textIn 2024 Indonesia will again hold general elections to fill executive and legislative positions. One of the legislative member elections was to elect members of the Regional Representative Council (DPD) as the institution representing each province in Indonesia. An interesting phenomenon in this election was Alfiansyah Komeng's election as a DPD member representing West Java Province, surpassing the other candidates with the highest vote acquisition of 5,399,699 votes. Using a qualitative approach and data collection techniques through literature studies, the results showed that Komeng's electability was based on popularity, integrity, people's dissatisfaction with conventional politics, photos on ballot papers and the benefits of holding elections simultaneously. Meanwhile, according to the author, the media and the message conveyed are minor factors in Komeng's choice
Development of Mathematics Learning Media Based on Discovery Learning Integrated with Inderapura Culture to Improve Mathematical Problem Solving Ability for Junior High School Student of Grade VIII
No full textBased on the preliminary analysis conducted at SMP Negeri 2 Pancung , the students' mathematical problem solving ability was still low. The low ability of students to solve mathematical problems caused by (1) teachers do not use worksheet in the learning process, (2) The learning process that has not facilitated students to construct their own knowledge. Based on this problem, researchers developed mathematical learning media based on discovery learning integrated with Inderapura culture to improve students' mathematical problem solving abilities.This research was a development research conducted with the Plomp development model. This model was carried out in 3 stages. In the first stage was the preliminary research phase and it was needs analysis, curriculum analysis, student analysis and concept analysis. In the second stage was the development or prototype phase which was designed in accordance with the integrated learning discovery model of Inderapura culture. In the third stage was the assessment phase which aimed to see the effectiveness of learning media by conducting large group field tests. The subjects of this study were the eighth grade students of SMPN 2 Pancung Soal. Data collected by documentation, observation, interviews, questionnaires, and tests. Data from observations, questionnaires and tests were analyzed quantitatively and strengthened by the results of the documentation analyzed descriptive qualitative.The results showed that mathematics learning media in the form of lesson plan andworksheet based on discovery learning integrated with Inderapura culture for grade VIII in the second semester of Junior High School were produced by fulfilling valid, practical and effective categories. Validity was tested in terms of content, usage, language and graphics. Applicable in terms of application, time, ease of use and effective in terms of potential impacts on students' mathematical problem solving abilities. The conclusion was mathematics learning mediawas feasible to be used as reference material in mathematics learning, especially materials for constructing flat side spaces in gradeVIII of SMP N 2 Pancung
Movement Ecology of the Black Flying Fox (Pteropus alecto) in a Changing Landscape: Implications for Hendra Virus Spillover in Eastern Australia
No full textHistorically nomadic, black flying foxes (Pteropus alecto) traveled hundreds of kilometers across the landscape in search of seasonally ephemeral plant food resources. Land clearing has decreased native habitat of P. alecto in coastal eastern Australia and increased seasonal variability in native food sources, driving flying foxes into continuously-occupied roosts in and around urban areas. As a natural host for Hendra virus, understanding P. alecto movement is critical to understanding Hendra virus and its transmission and spillover dynamics. High densities of smaller roosts, along with consistent resources temporally, led us to hypothesize that bats in urban roosts would forage closer to the roost sites than previously recorded for bats at non-urban roosts. However, we expected that bats would exhibit seasonally variable movements, especially as native resources are increasingly unavailable in winter months. We investigated foraging distances, track tortuosity, and foraging ranges, by tracking 76 adult P. alecto from two continuously occupied roosts using GPS-GSM trackers. One roost is in a highly urbanized area, and the other is in a peri-urban area, adjacent to native habitat. We collected 883 bat-nights of tracking data (722 foraging nights and 161 roost-switching nights) throughout 2019–2021. Although we observed occasional extreme nightly movements (up to 218.27 km), most nightly foraging distances and maximum displacement calculations from the roost were comparatively short (mean 7.0 ± 5.0 km). Bats travelled longer distances when foraging from the peri-urban roost, with individual mean track lengths ranging from 8.7 – 51.6 km compared to 3.7 – 44.4 km at the urban roost. Bats from the urban roost predominantly foraged locally in developed areas, whereas bats from the peri-urban roost displayed a mixed foraging strategy, exploring developed, agricultural, and native landscapes. Understanding foraging movements of urban resident flying foxes can help prevent human-wildlife conflicts and promote coexistence in and around increasingly urban environments. Insight into how the movement ecology and foraging behaviors of P. alecto could affect Hendra virus spillover and dynamics in this system could also further help us understand other zoonotic diseases globally.Embargo status: Restricted until 01/2174. To request the author grant access, click on the PDF link to the left
ALAT PEMBASMI HAMA WERENG OTOMATIS BERBASIS MIKROKONTROLER MENGGUNAKAN TEGANGAN KEJUT LISTRIK
No full textPada umumnya, pembasmian hama padi dilakukan dengan cara penyemprotan pestisida. Hal ini akan mengakibatkan tanah dan tanaman padi tercemar. Penelitian ini bertujuan untuk membuat alat pembasmi hama otomatis yang ramah lingkungan tanpa menggunakan pestisida. Metode pelaksanaan yang dilakukan agar berhasil membuat alat pembasmi hama tanaman padi otomatis menggunakan tegangan kejut listrik dimulai dari perancangan hardware kemudian pengumpulan data dan melakukan penelitian dengan menguji coba alat di sawah untuk melihat keefektifan alat. Pada perancangan ini, mikrokontroler Arduino UNO digunakan sebagai pusat pengendali sistem, sensor LDR digunakan untuk menyalakan lampu saat sensor mendeteksi kegelapan dimalam hari untuk membuat hama mendekat sesuai dengan karakteristiknya yang tertarik dengan cahaya, kemudian tegangan kejut listrik akan aktif bersamaan dengan lampu yang menyala untuk menyengat hama yang menempel pada jaring kawat yang sudah dibuat, Pemrograman menggunakan software Arduino IDE. Berdasarkan hasil pengujian selama 3 hari, alat pembasmi hama padi ini dapat membasmi 39 hama kepik hitam, penggerek batang padi, dan walang sangit
Perancangan dan Implementasi Animasi Interaktif sebagai Media Pembelajaran Bahasa Inggris pada Anak
No full textEnglish is now an international language that is used in many areas of life around the world. English is also used in communication to share knowledge around the world. So, the author made an animation program that is both interactive and can be used to teach basic English lessons. So it is useful for children to know the alphabet, numbers, names of fruits, animals, and types of vehicles. Interactive animation is a way for parents who want to teach their kids more about English to help them learn it better. Apart from being a learning tool, animation can also relieve boredom from daily activities. And, of course, the expected result is that users can improve their understanding, knowledge and vocabulary in English
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