bluuebunny/crossref_metadata_2025 huggingface dataset:
The syntax of number marking: the view from bare nouns in Wolof
Authors: Fong Suzana
Published: March 2020

Several languages allow for their nominals to occur without any functional morphology; they are dubbed ‘bare nominals’. BNs are often number-neutral, i.e.,there is no commitment to a singular or plural interpretation. In Wolof, however, BNs are singular when unmodified. A plural interpretation becomes available only when a nominal-internal plural feature is exponed in the form of complementizer or possessum agreement. I propose an extension of Béjar & Rezac’s (2009) Person Licensing Condition to number: a marked number feature (i.e. plural) must be licensed by Agree. BNs in Wolof can in principle be singular or plural. In the absence of a nominal-internal probe that Agrees with the plural feature of the BN, the Number Licensing Condition is violated, causing the derivation to crash. Unmarked number, i.e., singular, does not obey the NLC, so the derivation converges, yielding a singular BN. However, if there is a nominal-internal number probe, which is realized as complementizer or possessum agreement, the NLC is satisfied, allowing a derivation to converge where the BN is plural. If correct, this analysis accounts for the unusual behavior of BNs in Wolof and provides further empirical support for the view that valued features are responsible for nominal licensing (Kalin, 2017, 2019).
Lexical ambiguity and acoustic distance in discrimination
Authors: Sanker Chelsea
Published: March 2020

This work presents a perceptual study on how acoustic details and knowledge of the lexicon influence discrimination decisions. English-speaking listeners were less likely to identify phonologically matching items as the same when they differed in vowel duration, but differences in mean F0 did not have an effect. Although both are components of English contrasts, the results only provide evidence for attention to vowel duration as a potentially contrastive cue. Lexical ambiguity was a predictor of response time. Pairs with matching duration were identified more quickly than pairs with distinct duration, but only among lexically ambiguous items, indicating that lexical ambiguity mediates attention to acoustic detail. Lexical ambiguity also interacted with neighborhood density: Among lexically unambiguous words, the proportion of 'same' responses decreased with neighborhood density, but there was no effect among lexically ambiguous words. This interaction suggests that evaluating phonological similarity depends more on lexical information when the items are lexically unambiguous.
Re-constraining massive pied-piping: An argument for non-interrogative CPs
Authors: Amy Daniel G.
Published: March 2020

Unlike traditional wh-movement and obligatory pied-piping, massive pied-piping is restricted in the types of clauses in which it may occur. Heck (2004, 2008) argues that massive pied-piping constructions are restricted to non-subordinate clauses in English. This paper (i) investigates the availability of massive pied-piping of DPs in complements of know and surprise-type predicates; (ii) proposes a revised generalization on massive pied-piping that restricts the construction to non-interrogative clauses; and (iii) proposes a hybrid analysis that combines Cable's (2010) Q-movement analysis with Den Dikken's (2003) two-stage wh-movement operation, thus accounting for the wider set of environments covered by the revised generalization on massive pied-piping in English.
Closest conjunct agreement in replacives: Experimental evidence from Estonian
Authors: Kaps Marju
Published: March 2020

The phenomenon of closest conjunct agreement (CCA) has been documented cross-linguistically in conjunctions (“X and Y”) and disjunctions (“(either) X or Y”), and agreement patterns with feature-mismatching coordination have been shown to be variable, both across constructions and speakers. The present work addresses agreement patterns with replacives subjects (“not X but Y”) in Estonian, where subjects can occur pre- or postverbally. Replacives differ from other forms of coordination by having a single asserted subject. A series of two speeded acceptability experiments with postverbal subject replacives, and a relative naturalness rating experiment comparing replacives to disjunctions showed that both CCA and a bias towards agreeing with the asserted subject (ASA) play a role in determiningverbal agreement with replacive subjects. Additionally, there is evidence for less featurally marked 3rd person verb forms being preferred, particularly when there are conflicting pressures on agreement from CCA and ASA, and for person mismatches being fully repaired by morphological syncretism.
THE EFFECT OF AUTHENTIC MATERIALS ON STUDENTS’ LISTENING PROCEDURAL TEXT ABILITY OF THE 2018/2019 NINTH YEAR STUDENTS AT SMP SWASTA DEWANTARA PUTRA SEBERTUNG
Authors: Umara Ummi
Published: March 2020

BSTRACTThe study deals with an experimental research design which seeks for the effect of authentic materials on students’ listening procedural text ability. The problems that had been identified by the writer are including the students have many difficulties in learning English, such as understanding the listening lesson especially for procedure text, they are not able to achieve the standard valuing scores in listening lesson, lack of vocabulary of the students makes them feel so confused to understand the whole contents of the text, the learning materials are not in accordance with natural conditions and environment of the students, the instructional media cannot be used to motivate the students to improve their English listening, and the strategy implemented in teaching procedure text by the teacher is undrilled to subject later. 70 students at the ninth year students at SMP Swasta Dewantara Putra Sebertung in academic year of 2018/2019 are taken as the subject of the study. Listening test is used to obtain the data on the variable. The final data then is analyzed by using technique of t-test analysis. The result shows that coefficient of tcounted (2.15) was greater than the ttable coefficient (1.68595). This means that there is the effect of authentic materials on students’ listening procedural text ability of the 2018/2019 ninth year students at SMP Swasta Dewantara Putra Sebertung. Therefore, the hypothesis of the study is accepted.Keywords: Authentic Materials, Procedure Text, Listening Ability
THE EFFECT OF 3-2-1 STRATEGY ON STUDENTS’ READING COMPREHENSION OF THE STUDENTS AT SMA NEGERI 1 BAHOROK
Authors: - Juliantina Juliantina
Published: March 2020

Tujuan dari penelitian ini adalah untuk mengetahui apakah ada perbedaan antara siswa yang diajar dengan strategi 3-2-1 dibandingkan dengan teknik konvensional dalam membaca pemahaman pada teks recount pada siswa kelas X SMA Negeri 1 Bahorok. Jenis penelitian yang digunakan adalah penelitian eksperimental. Dalam mengumpulkan data peneliti menggunakan tes yang diberikan kepada kedua kelas dengan topik yang sama. Data dianalisis dengan menggunakan prosedur statistik. T-test digunakan untuk menganalisis skor post-test siswa. Hasil penelitian ini menunjukkan bahwa nilai rata-rata pemahaman membaca siswa di kelas eksperimen (77,14) lebih tinggi daripada skor rata-rata pemahaman membaca siswa di kelas kontrol (47,71). Ini berarti, t hitung (4,18) juga lebih besar dari t tabel (1,99). Pemahaman membaca yang diajarkan dengan menggunakan strategi 3-2-1 memberikan perbedaan terhadap pemahaman membaca siswa pada siswa kelas X SMA Negeri 1 Bahorok. Penggunaan strategi 3-2-1 sebagai teknik pengajaran membaca pemahaman untuk mendapatkan hasil yang lebih bagus terhadap pemahaman membaca siswa.
DAMPAK SITUS JEJARING SOSIAL FACEBOOK TERHADAP PERKEMBANGAN PSIKOLOGI REMAJA
Authors: - Nengsih Nengsih
Published: March 2020

Meningkatnya penggunaan situs jejarng sosial Facebook yang sebagian besar diantaranya adalah remaja,  merupakan fenomena yang berkembang saat ini. Akibatnya dampak positif  maupun negatif yang ditimbulkan media sosial  berimbas pada penggunannya. Situs jejaring sosial Facebook mempengaruhi perkembangan psikologi remaja, baik itu secara fisik (otak/amigdala), kognitif, sosial, kepribadian, moral dan agama. Tujuan penulisan ini adalah melihat dampak situs jejaring sosial facebook terhadap perkembangan psikologi remaja. Berdasarkan hasil pembahasan bahwa dampak situs jejaring sosial Facebook terhadap perkembangan psikologi remaja, antara lain: 1) Facebook sebagai media mengekspresikan perasaan dan penyaluran emosi, 2) Konfronitas remaja dalam pengunaan facebook, 3) Facebook media pencarian identitas diri dan sarana sosialisasi, 4) Mempengaruhi managemen waktu remaja.
GAMBARAN DISIPLIN BELAJAR PESERTA DIDIK DI SMA N 1 RAMBATAN
Authors: Dwi P Besti Nora
Published: March 2020

Penelitian ini dilatarbelakangi oleh permasalahan siswa yang banyak mengalami masalah tentang disiplin belajar di sekolah. Banyak siswa yang tidak tuntas dalam belajar. Penelitian ini bertujuan untuk mendeskripsikan disiplin belajar siswa.     Penelitian ini menggunakan metode kuantitatif jenis deskriptif. Populasi penelitian adalah siswa SMA Negeri 1 Rambatan Tahun Ajaran 2014/2015 yang berjumlah 522 orang, sampel sebanyak 208 orang, yang dipilih dengan teknik stratified random sampling. Instrumen yang digunakan adalah kuesioner. Data dianalisis dengan statistik deskriptif.                        Temuan penelitian memperlihatkan bahwa disiplin belajar secara umum berada pada kategori sedang. Hasil yang diperoleh dalam penelitian ini dapat dijadikan salah satu masukan bagi guru BK dan guru matapelajara dalam rangka lebih meningkatkan disiplin. Adapun upaya yang dapat dilakukan guru BK yaitu melaksanakan beberapa jenis layanan yang ada.
IPTEK BAGI MASYARAKAT (IbM): SEKOLAH TK MENGHADAPI MASALAH IMPLEMENTASI SAINS
Authors: Retnawati Sri Fitria , Badrun Yeeri , Ismanto Edi
Published: March 2020

Isu utama pendidikan anak di Indonesia adalah Etika, moral dan kepedulian terhadap kelestarian lingkungan. Secara khusus masalah dalam pendidikan Taman kanak-kanak khususnya di kota Pekanbaru tidak ada Pengembangan Materi Sains atau Porsi Pembelajaran sains yang sedikit, pengajaran etika moral, kearifan lokal dan lingkungan hidup masih pada ranah kognitif. Untuk menjawab pertanyaan tersebut UMRI telah bermitra dengan Taman kanak-kanak Negeri Pembina 1 (TKN 1) dan Taman kanak-kanak Swasta Tri Insani Permata (TK-TIP) yang sedang di Pekanbaru dalam kegiatan pengabdian Iptek bagi Masyarakat (IbM). Dalam program ini telah disusun kurikulum baru yang menggabungkan pengajaran sains dan menanamkan moral, kearifan lokal dan kepedulian terhadap lingkungan hidup. Luaran yang berhasil dihasilkan dari kegiatan ini tersedianya kurikulum baru yang mengintegrasikan pembelajaran moral, kearifan lokal dan lingkungan hidup dan menyediakan alat peraga pembelajaran saintifik bisa menggunakan modul dan VCD penggunaan alat, untuk masing-masing Taman kanak-kanak mitra.
PEMBERDAYAAN USAHA MASYARAKAT MELALUI BRANDING PRODUK
Authors: Ardi Hendri Ali , Samsiah Siti , Busyro Wahyi , Sandri Siti Hanifa , Misral Misral , Rahmayanti Sri
Published: March 2020

Rendahnya kemampuan bersaing produk-produk UMKM kota Pekanbaru menjadi anomaly ditengah tingginya angka pertumbuhan usaha tersebut. Hal tersebut dimungkinkan karena ketidakmampuan UMKM dalam menciptakan jati diri untuk produk-produk mereka sehingga mudah teridentifikasi dan terdiferensiasi. Pengabdian kepada masyarakat ini bertujuan untuk mengatasi permasalahan tersebut diatas melalui perancangan produk, merek dan branding yang memiliki keunggulan kompetitif, selain memberikan pengetahuan dan wawasan akan arti penting branding produk.pengabdian dilakukan dengan pendekatan brainstorming dan SWOT sebagai teknik analisis,kegiatan pengabdian ini menghasilkan produk berupa sabun cuci dan mandi cair dengan thematic buah-buahan dan memakai merek SEEPRazes.
PELATIHAN PELAKSANAAN PENELITIAN TINDAKAN KELAS DAN TEKNIK PUBLIKASI JURNAL ILMIAH BAGI GURU SMK NEGERI 1 RENGAT
Authors: Herlandy Pratama Benny , Ismanto Edi , Novalia Melly , Alrian Rahmad
Published: March 2020

Pengabdian pada masyrakat yang dilakukan bertujuan untuk mencipatakan tenaga pendidik yang mampu melaksanakan kegiatan penelitian tindakan kelas. Berdasarkan tujuan tersebut maka target konkrit yang ingin dicapai adalah membangkitkan kompetensi guru untuk dapat melaksanakan publikasi ilmiah melalui penelitian tindakan kelas. Untuk mencapai tujuan dan target dari kegiatan pengabdian maka metode yang dilakukan adalah dengan melalui kegiatan pelatihan dan pendampingan secara berkala sehingga didapatkan kompetensi yang ingin dicapai yaitu mampu melaksanakan penelitian tindakan kelas dan publikasi ilmiah.
LITERASI KEUANGAN SYARIAH BAGI GURU DAN SISWA MADRASAH ALIYAH MUHAMMADIYAH
Authors: Busyro Wahyi , Septianingsih Rika , Nawas Abu , Wahdi elsye Mohd ario
Published: March 2020

Muhammadiyah University of Riau is one of universities in Riau and every college must do catur dharma which is the vision of all universities in Indonesia. One of the forms of catur dharma college is to carry out community service. Community service is an activity of academic community that utilizes science and technology to advance people's prosperity and educate the life of the nation. The form of community service undertaken by Sharia Banking Lecturers is holding a seminar with the theme “Financial Literacy For Teacher and Student of Madrasah Aliyah Muhammadiyah". After the holding of this seminar is expected teachers and students can manage finances well and in accordance with Islamic Shari'a and can be a person who berkemudian in the future.
EDUKASI PASAR MODAL DI MADRASAH ALIYAH MUHAMMADIYAH PEKANBARU
Authors: Sandri Siti Hanifa , Samsiah Siti , Bakaruddin Bakaruddin
Published: March 2020

The capital market is a market (place, in the form of a building) prepared to trade stocks, bonds, and other types of securities using the services of stockbrokers. To add to the opening insights on the introduction of capital markets in Indonesia, the introduction of trading mechanisms on stocks and the steps to become investors in the capital market addressed to school teachers and students by practitioners who have been directly involved in the capital market in order to support the interests, knowledge and improving soft skill of teachers and students especially related to how to invest in capital market. This method of community service activities using lecture methods, direct demonstrations practiced by participants, and question and answer. Evaluation of activities generally works well and satisfies participants and training instructors. Participants hope that in the following years can be given the opportunity to get similar training. Overall activities of community empowerment through education of capital market run well and smoothly. This training provides skills and knowledge about capital market activities to teachers and learners as a provision to start a flexible and controllable side business.
Penyelidikan Kuat Tekan Komposit Polimer yang Diperkuat Serbuk Kayu Sebagai Bahan Baku Konstruksi Kapal Kayu
Authors: Suhardiman Suhardiman , Mukhlis Asroni
Published: March 2020

Pada  saat  ini,  penggunaan  bahan  baku  kayu  untuk  pembuatan  konstruksi  kapal  kayu  sangat terbatas.Sementara hasil serbuk kayu dari olahan mabel tidak dimanfaatkan secara ekonomis. Oleh karena itu perlu perlu dilakukan kajian untuk serbuk kayu menjadi bahan baku alternative pada pembuatan konstriksi kapal kayu. Dalam penelitian ini, digunakan serbuk kayu dengan bahan pengikat polimer resin. Proses dalam pelaksanaan penelitian ini, dengan menvariasikan 4 variabel perbandingan yaiti 1:1, 2:1, 2.5:1 dan 3:1 dengan fraksi volume. Kemudian dibuat spesimen uji tekan sebanyak 5 buah spesimen untuk masing-masing variabel. Hasil menunjukkan bahwa perbandingan serbuk kayu dengan polimer resin   (1:1), mendapat nilai kekuatan tekan fc = 820 kg/cm2, (2:1), mendapat nilai kekuatan tekan fc = 620 kg/cm2, (2,50:1), mendapat nilai kekuatan tekan fc = 500 kg/cm2, dan (3:1), mendapat nilai kekuatan tekan fc = 580 kN/mm2.
Simulasi Tekno-Ekonomi Pengembangan Photovoltaic pada Gedung
Authors: Sepdian Sepdian , Syafii Syafii
Published: March 2020

This research is related to the development of pv system scanning at Politeknik Jambi and economic analysis using RETScreen software. The purpose of this research is to design photovoltaic system at building of Politeknik Jambi, to analyze photovoltaic technology for Poliknik Jambi building and to calculate photovoltaic economy for Politeknik Jambi building. The results showed that the required PV system of 135 kW/day, while based on the results of economic analysis using RETScreen Software required development cost of IDR 4.696.030.000 and capital turnover time for 20 years. This result shows that the system is designed to be built in Politeknik Jambi.
Unjuk Kerja dan Pemeliharaan Gear Pump pada Unit Excavator 220 LC
Authors: Selviyanty.YH Veny
Published: March 2020

Gear pump (pompa roda gigi) adalah jenis pompa positive displacement dimana fluida akan mengalir melalui celah-celah roda gigi dengan dinding rumahnya disebut sebagai pompa karena fluida yang dialirkan pada umumnya berupa cairan (liquid) atau bubur (slurry). Sedangkan pompa positive displacement berarti pompa tersebut menghisap sejumlah fluida yang terjebak yang kemudian ditekan dan dipindahkan ke arah keluaran (outlet). Gear pump sering digunakan untuk aplikasi hydrolic fluid power. Dalam pengoperasiannya sebuah komponen gear pump excavator dapat mengalami kegagalan, meskipun komponen tersebut masih dalam keadaan bagus/ baru. Untuk menganalisa penyebab terjadi kegagalan gear pump ini dilakukan pengujian yang meliputi pengujian yang bersifat merusak (destructive material testing) menggunakan uji kekerasan dan pengujian yang tidak merusak (non-destructive material testing) menggunakan uji fraktografi, metallografi dan pengujian komposisi kimia. Dari hasil pemeriksaan di labor menunjukan bahwa Gear Pump Excavator mengalami kerusakan pada gigi penggerak di bagian luar dan gigi bagian dalam, photo makro roda gigi bagian luar dalam penampang melintang menunjukan adanya cacat Deformasi / Perubahan Bentuk akibat beban bentur pada permukaan roda gigi. Roda gigi yang menerima beban putar/ gesek mengalami aus sesuai dengan arah putaran geardan pada permukaan patahan dan menunjukkan terdapatnya inklusi yang terkonsentrasi mengarah ke permukaan material gear pump excavator sehingga menyebabkan terjadinya aus. Pada material gear pump excavator  yang mengalami kegagalan bila dilihat dari bentuk patahannya termasuk kepada jenis beban fatik  karena sebelum patah gear pump excavator  mengalami cacat deformasi.
Optimasi Kapasitas Produksi dengan Pendekatan Sistem Antrian (Studi Kasus CV. Sispra Jaya Logam)
Authors: Meirizha St Nova , Yul Faradilla Ananda , Prayuda Julian
Published: March 2020

CV. Sispra Jaya Logam adalah sebuah perusahaan yang bergerak di bidang industry manufaktur pengecoran logam. Perusahaan ini memproduksi berbagai kebutuhan perusahaan industri seperti roda gigi, gibol joint, greacer, dan lain-lain. Salah satu penyebab antrian pada CV. Sispra Jaya Logam adalah ketidakseimbangan kebutuhan kapasitas dengan ketersediaan kapasitas di lantai produksi. Hal ini disebabkan oleh adanya kekurangan dan kelebihan material yang akan diproses khususnya pada mesin bubut, dimana jumlah produksi yang direncanakan tidak sesuai dengan kapasitas yang tersedia. Rough Cut Capacity Planning (RCCP) merupakan metode yang digunakan untuk mengukur kapasitas stasiun kerja sehingga dapat diketahui apakah suatu jadwal produksi dapat memenuhi permintaan tepat waktu. Berdasarkan proses produksi terlihat banyaknya antrian di stasiun kerja pembubutan. Penelitian terhadap antrian pada proses produksi di CV. Sispra Jaya Logam dilakukan dengan metode RCCP dan model antrian. Langkah pertama dalam perhitungan RCCP adalah perhitungan kapasitas tersedia, setelah itu dilakukan perhitungan kapasitas yang dibutuhkan. Kemudian dilakukan verifikasi kapasitas. Untuk stasiun kerja yang kekurangan kapasitas maka dilakukan penyeimbangan kapasitas dengan pendekatan model antrian. Pendekatan model antrian meliputi uji distribusi, perhitungan antrian pada kondisi sekarang dan perhitungan antrian pada kondisi usulan. Dari implementasi metode diperoleh usulan terbaik adalah dengan menambahkan satu server (mesin) pada stasiun kerja pembubutan. Dari penambahan satu server tersebut diperoleh jumlah unit rata-rata yang menunggu dalam antrian sebesar 0,199 dan waktu menunggu rata-rata dalam antrian adalah 0,232 menit.
Self-Organization of Multi-Robot System Based on External Stimuli
Authors: Kheerallah Yousif , Marhoon Ali , Rashid Mofeed , Rashid Abdulmuttalib
Published: March 2020

In modern robotic field, many challenges have been appeared, especially in case of a multi-robot system that used to achieve tasks. The challenges are due to the complexity of the multi-robot system, which make the modeling of such system more difficult. The groups of animals in real world are an inspiration for modeling of a multi-individual system such as aggregation of Artemia. Therefore, in this paper, the multi-robot control system based on external stimuli such as light has been proposed, in which the feature of tracking Artemia to the light has been employed for this purpose. The mathematical model of the proposed design is derived and then Simulated by V-rep software. Several experiments are implemented in order to evaluate the proposed design, which is divided into two scenarios. The first scenario includes simulation of the system in situation of attraction of robot to fixed light spot, while the second scenario is the simulation of the system in the situation of the robots tracking of the movable light spot and formed different patterns like a straight-line, circular, and zigzag patterns. The results of experiments appeared that the mobile robot attraction to high-intensity light, in addition, the multi-robot system can be controlled by external stimuli. Finally, the performance of the proposed system has been analyzed.
Indoor Low Cost Assistive Device using 2D SLAM Based on LiDAR for Visually Impaired People
Authors: Hakim Heba , Marhoon Ali
Published: March 2020

Many assistive devices have been developed for visually impaired (VI) person in recent years which solve the problems that face VI person in his/her daily moving. Most of researches try to solve the obstacle avoidance or navigation problem, and others focus on assisting VI person to recognize the objects in his/her surrounding environment. However, a few of them integrate both navigation and recognition capabilities in their system. According to above needs, an assistive device is presented in this paper that achieves both capabilities to aid the VI person to (1) navigate safely from his/her current location (pose) to a desired destination in unknown environment, and (2) recognize his/her surrounding objects. The proposed system consists of the low cost sensors Neato XV-11 LiDAR, ultrasonic sensor, Raspberry pi camera (CameraPi), which are hold on a white cane. Hector SLAM based on 2D LiDAR is used to construct a 2D-map of unfamiliar environment. While A* path planning algorithm generates an optimal path on the given 2D hector map. Moreover, the temporary obstacles in front of VI person are detected by an ultrasonic sensor. The recognition system based on Convolution Neural Networks (CNN) technique is implemented in this work to predict object class besides enhance the navigation system. The interaction between the VI person and an assistive system is done by audio module (speech recognition and speech synthesis). The proposed system performance has been evaluated on various real-time experiments conducted in indoor scenarios, showing the efficiency of the proposed system.
Proposed Topology for Voltage Sag Mitigation with New Control Strategy
Authors: Diwan Adnan , Abdulhasan Khalid
Published: March 2020

voltage sags represent the greatest threat to the sensitive loads of industrial consumers, the microprocessor based-loads, and any electrical sensitive components. In this paper, a special topology is proposed to mitigate deep and long duration sags by using a modified AC to AC boost converter with a new control method. A boost converter is redesigned with a single switch to produces an output voltage that is linearly proportional to the duty cycle of the switch. On the other hand, the proposed control system is based on introducing a mathematical model that relates the missing voltage to the duty cycle of the boost converter switch. The simulation results along with the system analysis are presented to confirm the effectiveness and feasibility of the proposed circuit.
TINJAUAN KINERJA POMPA AIR TANPA MOTOR (PATM) DESA ALALE KABUPATEN BONE BOLANGO
Authors: Himari Andri Ramadhan
Published: March 2020

ABSTRAK

Musim kemarau menjadi masalah utama bagi petani yang hanya mengandalkan suplai air melalui bendungan atau saluran irigasi. Air menjadi barang berharga dan menjadi rebutan. Namun masalah tersebut teratasi dengan adanya Pompa Air Tanpa Motor atau Hidram (Hydraulic Ram). Jenis pompa air ini sangatlah cocok untuk irigasi dan pengadaan air baku. Efisiensinya sangat tinggi karena pompa ini tidak tergantung kepada bahan bakar minyak, listrik ataupun oli mesin, hingga dapat beroperasi 24 jam terus menerus dan juga biaya operasionalnya bisa dikatakan sangat sedikit dan perawatan dan perbaikan sangat mudah, tidak memerlukan tenaga ahli khusus. Tujuan dalam penelitian ini adalah menganalisis ketersediaan air yang dibutuhkan untuk menggerakkan PATM, mengetahui tinjauan kinerja PATM, dan Mengetahui Kondisi PATM. Berdasarkan hasil penelitian debit air yang ada tidak mempengaruhi efisiensi PATM itu sendiri, debit yang diperoleh dalam beberapa tahun terakhir dengan jumlah rerata yang ada adalah 45,332 liter/detik dan untuk kebutuhan debit air pada PATM didapatkan hasil rerata 17,226/detik. PATM adalah teknologi pompa terbaru dengan menggunakan pemanfaatan gravitasi dimana akan menciptakan energi dari hantaman air yang menabrak faksi air lainnya untuk mendorong ke tempat yang lebih tinggi. Kondisi pompa saat ini telah mengalami kerusakan sebanyak 9 unit pompa, hal ini sangat berpengaruh terhadap kebutuhan air baku yang sering dimanfaatkan oleh masyarakat sekitarnya untuk kebutuhan lahan pertanian dan perkebunan.

 

Kata Kunci: Pompa Air Tanpa Motor, Hydraulic Ram, & Kinerja
PENJADWALAN DAN ALOKASI MATERIAL DENGAN METODE LINE OF BALANCE (LOB) PADA PROYEK PELEBARAN JALAN AP.PETTARANI UTARA MAKASSAR
Authors: Fuad Mohammad Januar
Published: March 2020

ABSTRAK

Pelebaran Jalan dimaksud untuk menunjang pembangunan di sektor-sektor lain dengan tujuan meningkatkan pertumbuhan ekonomi. Proyek Pelebaran merupakan lingkup pekerjaan dengan biaya yang besar. Sehingga memerlukan perencanaan sumber daya. Penelitian ini bertujuan menghitung  jumlah kebutuhan material dan merencanakan waktu penggunaan material di lokasi proyek dengan menggunakan Metode Line of Balance (LOB) pada penyelesaian proyek  dan pelaksanaan pekerjaan. Lokasi penelitian Proyek Pelebaran Jalan AP.Pettarani Utara sepanjang 475 km. Data dikumpulkan dengan cara berupa observasi langsung di lapangan. Hasil penelitian menunjukkan bahwa penjadwalan dan alokasi material dengan menggunakan metode Line of balance (LOB), bisa diketahui dengan lebih detail waktu pelaksanaan pekerjaan tiap stasiun disertai kebutuhan tiap stasiun. Metode Line of Balance (LOB) adalah metode yang sederhana tapi sangat praktis dan tepat untuk proyek konstruksi jalan karena dengan metode ini bisa pekerjaan yang bisa dilaksanakan tanpa berpatok pada perencanaan dala kurva ‘S’. Durasi hari kerja bisa dipercepat dengan meningkatkan produktivitas sumber daya peralatan dan tenaga kerja.

 

Kata Kunci: Metode Line of Balance (LOB), Konstruksi Jalan
Comparison of the Efficacy and Safety of Insulin Detemir Administered Once Daily According to Two Titration Algorithms (3-0-3 and 2-4-6-8) in Patients with Type 2 Diabetes Mellitus
Authors: Yu Hea Min , Park Kang Seo , Hong Jun Hwa , Park Keun Yong , Lee Jong Min , Ku Bon Jeong , Kim Yeo Joo , Oh Tae Kun
Published: March 2020

Background: This study was conducted to compare glycaemic control with insulin detemir administered according to two titration algorithms (3-0-3 and 2-4-6-8) after 20 weeks of treatment in subjects with type 2 diabetes mellitus inadequately controlled on metformin. Methods: This was a 20-week, randomised, multicentre, open-labelled, treat-to-target trial. Forty-six patients were randomised in a 1:1 manner to either the 3-0-3 (G3, n=23) or 2-4-6-8 (G2, n=23) algorithm. The primary endpoint was change of haemoglobin A1c (HbA1c), and the secondary safety endpoint included hypoglycaemic events. Results: After 20 weeks, HbA1c decreased similarly in the G3 and G2 groups, with a mean change of −0.9% from baseline. The mean change in fasting plasma glucose was numerically similar in both groups. The hypoglycaemia event rate per 100-patient-years of exposure (r) in the G2 group (r=1,427) was higher than that in the G3 group (r=807). Conclusion: Both treatment groups had numerically similar HbA1c reductions. A trend towards fewer hypoglycaemia episodes after dose stabilisation was seen with the simpler G3. Clinically, this may be an important observation, as a simpler titration algorithm may support self-management and maintenance of insulin therapy.
Visceral-to-Subcutaneous Abdominal Fat Ratio Is Associated with Nonalcoholic Fatty Liver Disease and Liver Fibrosis
Authors: Jung Chan-Hee , Rhee Eun-Jung , Kwon Hyemi , Chang Yoosoo , Ryu Seungho , Lee Won-Young
Published: March 2020

Background: We evaluated the association of visceral-to-subcutaneous fat ratio (VSR) with nonalcoholic fatty liver disease (NAFLD) and advanced fibrosis degree based on noninvasive serum fibrosis markers in the general population with NAFLD. Methods: This is a cross-sectional study, in 7,465 Korean adults who underwent health screening examinations. NAFLD was defined as fatty liver detected on ultrasonography, and visceral and subcutaneous abdominal fat was measured using computed tomography. We predicted fibrosis based on the fibrosis-4 (FIB-4) score and aspartate aminotransferase-to-platelet ratio index (APRI) and categorized the risk for advanced fibrosis as low, indeterminate, or high. Results: The multivariable-adjusted prevalence ratios for indeterminate to high risk of advanced fibrosis based on FIB-4, determined by comparing the second, third, and fourth quartiles with the first quartile of VSR, were 3.38 (95% confidence interval [CI], 0.64 to 17.97), 9.41 (95% CI, 1.97 to 45.01), and 19.34 (95% CI, 4.06 to 92.18), respectively. The multivariable-adjusted prevalence ratios for intermediate to high degree of fibrosis according to APRI also increased across VSR quartiles (5.04 [95% CI, 2.65 to 9.59], 7.51 [95% CI, 3.91 to 14.42], and 19.55 [95% CI, 9.97 to 38.34], respectively). High VSR was more strongly associated with the prevalence of NAFLD in nonobese subjects than in obese subjects, and the associations between VSR and intermediate to high probability of advanced fibrosis in NAFLD were stronger in obese subjects than in nonobese subjects. Conclusion: High VSR values predicted increased NAFLD risk and advanced fibrosis risk with NAFLD, and the predictive value of VSR for indeterminate to high risk of advanced fibrosis was higher in obese subjects than in nonobese subjects.
Multifaceted Actions of Succinate as a Signaling Transmitter Vary with Its Cellular Locations
Authors: Guo Yuqi , Cho Sun Wook , Saxena Deepak , Li Xin
Published: March 2020

Since the identification of succinate's receptor in 2004, studies supporting the involvement of succinate signaling through its receptor in various diseases have accumulated and most of these investigations have highlighted succinate's pro-inflammatory role. Taken with the fact that succinate is an intermediate metabolite in the center of mitochondrial activity, and considering its potential regulation of protein succinylation through succinyl-coenzyme A, a review on the overall multifaceted actions of succinate to discuss whether and how these actions relate to the cellular locations of succinate is much warranted. Mechanistically, it is important to consider the sources of succinate, which include somatic cellular released succinate and those produced by the microbiome, especially the gut microbiota, which is an equivalent, if not greater contributor of succinate levels in the body. Continue learning the critical roles of succinate signaling, known and unknown, in many pathophysiological conditions is important. Furthermore, studies to delineate the regulation of succinate levels and to determine how succinate elicits various types of signaling in a temporal and spatial manner are also required.
EXAMINING THE VISUAL EFFECT OF TRYPOPHOBIC REPETITIVE PATTERN IN CONTEMPORARY URBAN ENVIRONMENTS: BAHRAIN AS A CASE FOR MIDDLE EAST COUNTRIES
Authors: Alkhalifa Fay , Wilkins Arnold , Almurbati Nehal , Pinelo Joao
Published: March 2020

New building materials and design technologies such as design parameterisation allow for the creation of unusual architectural elements composed of spatially repetitive patterns. Images with specific spatial properties, as from repetitive patterns, may cause psychological and physiological reactions, in some cases leading to severe discomfort, headaches or seizures. Clusters of roughly circular shapes, often hollow, are also known to create reactions such as sickness and vomiting in certain individuals. The phenomenon is known as trypophobia. Because trypophobia has only recently been described and is not widely recognised, we undertook a survey of the public reaction to trypophobic images, as well as to patterns that are known to have a neurological effect, viz. patterns of stripes. The study investigates whether the two types of pattern are similarly aversive and examines the extent of the aversion to find out whether trypophobia needs to be considered when designing buildings. We showed a variety of images to 405 members of the public to gauge their reaction. In some instances, the reaction was profound: one person vomited. The findings suggest that reactions to stimuli in the built environment are significant enough to provoke a debate on the role of visual discomfort in architecture and sustainable urbanism. It seems important to further investigate the properties of architectural shapes that induce discomfort so as to avoid a public health concern in contemporary urban environments.
EFFECTS OF CHANGING SCALES ON LANDSCAPE PATTERNS AND SPATIAL MODELING UNDER URBANIZATION
Authors: Yang Jinming , Li Shimei , Xu Jingwei , Wang Xiaojie , Zhang Xiaoguang
Published: March 2020

Spatial scale is an eternal topic in landscape pattern related analysis. This paper examined the spatial scale effect of
landscape pattern changes and their relationships with urbanization indicators in Qingdao using a series of sampling blocks. The results indicated
that, with the increasing block scale, the mean patch density and aggregation within a block decreased, whereas the diversity increased. Furthermore,
the expanding scale amplified the mean change ratio of landscape metrics and eliminated local drastic changes and regional variation trends along
an urban-to-rural gradient, which would be obvious at a finer block scale. Meanwhile, the adjusted R2 of GWR (Geographically Weighted Regression)
models increased with an increasing block size, especially when the block scale changed from 1 km to 5 km. Odd-numbered block scales performed
better than even-numbered block scales.
EDEN: Sensitivity Analysis and Transiting Planet Detection Limits for Nearby Late Red Dwarfs
Authors: Gibbs Aidan , Bixel Alex , Rackham Benjamin V. , Apai Dániel , Schlecker Martin , Espinoza Néstor , Mancini Luigi , Chen Wen-Ping , Henning Thomas , Gabor Paul , Boyle Richard , Perez Chavez Jose , Mousseau Allie , Dietrich Jeremy , Jay Socia Quentin , Ip Wing , Ngeow Chow-Choong , Tsai An-Li , Bhandare Asmita , Marian Victor , Baehr Hans , Brown Samantha , Häberle Maximilian , Keppler Miriam , Molaverdikhani Karan , Sarkis Paula
Published: March 2020

Small planets are common around late-M dwarfs and can be detected through highly precise photometry by the transit method. Planets orbiting nearby stars are particularly important as they are often the best-suited for future follow-up studies. We present observations of three nearby M dwarfs referred to as EIC-1, EIC-2, and EIC-3, and use them to search for transits and set limits on the presence of planets. On most nights our observations are sensitive to Earth-sized transiting planets, and photometric precision is similar to or better than TESS for faint late-M dwarfs of the same magnitude (I ≈ 15 mag). We present our photometry and transit search pipeline, which utilizes simple median detrending in combination with transit least-squares-based transit detection. For these targets, and transiting planets between one and two Earth radii, we achieve an average transit detection probability of ∼60% between periods of 0.5 and 2 days, ∼30% between 2 and 5 days, and ∼10% between 5 and 10 days. These sensitivities are conservative compared to visual searches.
A Second Look at 12 Candidate Dual AGNs Using BAYMAX
Authors: Foord Adi , Gültekin Kayhan , Nevin Rebecca , Comerford Julia M. , Hodges-Kluck Edmund , Barrows R. Scott , Goulding Andrew D. , Greene Jenny E.
Published: March 2020

We present an analysis of 12 optically selected dual active galactic nucleus (AGN) candidates at z < 0.34. Each candidate was originally identified via double-peaked [O iii] λ5007 emission lines and received follow-up Chandra and Hubble Space Telescope (HST) observations. Because the X-ray data are low-count (<100 counts) with small separations (<1″), a robust analysis is necessary for classifying each source. Pairing long-slit [O iii] observations with existing Chandra observations, we re-analyze the X-ray observations with Bayesian AnalYsis of AGNs in X-rays to determine whether the X-ray emission from each system is more likely a single or dual point source. We find that 4 of the 12 sources are likely dual X-ray point-source systems. We examine each point source’s spectra via a Monte Carlo method that probabilistically identifies the likely origin of each photon. When doing so, we find that (i) the secondary X-ray point sources in two of the systems have L
X < 1040 erg s−1, such that we cannot rule out a non-AGN origin, (ii) one source has a secondary with L
X > 1040 erg s−1 but a spectrum that is too soft to definitively preclude being X-ray emitting diffuse gas that was photoionized by the primary AGN, and (iii) one system (SDSS J1126+2944) is a dual AGN. Additionally, using complementary HST observations, we analyze a subsample of systems that are visually identified as merging. Our results suggest that dual AGNs may preferentially reside in mergers with small separations, consistent with both simulations and observations.
Stellar Density Profiles of Dwarf Spheroidal Galaxies
Authors: Moskowitz A. G. , Walker M. G.
Published: March 2020

We apply a flexible parametric model, a combination of generalized Plummer profiles, to infer the shapes of the stellar density profiles of the Milky Way’s satellite dwarf spheroidal galaxies (dSphs). We apply this model to 40 dSphs using star counts from the Sloan Digital Sky Survey, PanStarrs-1 Survey, Dark Energy Survey, and Dark Energy Camera Legacy Survey. Using mock data, we examine systematic errors associated with modeling assumptions and identify conditions under which our model can identify “non-standard” stellar density profiles that have central cusps and/or steepened outer slopes. Applying our model to real dwarf spheroidals, we do not find evidence for centrally cusped density profiles among the fifteen Milky Way satellites for which our tests with mock data indicate there would be sufficient detectability. We do detect steepened (with respect to a standard Plummer model) outer profiles in several dSphs—Fornax, Leo I, Leo II, and Reticulum II—which may point to distinct evolutionary pathways for these objects. However, the outer slope of the stellar density profile does not yet obviously correlate with other observed galaxy properties.
Detection of Echoes in PSR B1508+55 at Frequencies below 100 MHz Using the LWA1
Authors: Bansal K. , Taylor G. B. , Stovall Kevin , Dowell Jayce
Published: March 2020

PSR B1508+55 is known to have a single component profile above 300 MHz. However, when we study it at frequencies below 100 MHz using the first station of the Long Wavelength Array, it shows multiple components. These include the main pulse, a precursor, a postcursor, and a trailing component. The separation of the trailing component from the main peak evolves over the course of a three year study. This evolution is likely an effect of the pulse signal getting refracted off an ionized gas cloud (acting as a lens) leading to what appears to be a trailing component in the profile as the pulsar signal traverses the interstellar medium. Using this interpretation, we identify the location and electron density of the lens affecting the pulse profile.
A New Likely Redback Millisecond Pulsar Binary with a Massive Neutron Star: 4FGL J2333.1–5527
Authors: Swihart Samuel J. , Strader Jay , Urquhart Ryan , Orosz Jerome A. , Shishkovsky Laura , Chomiuk Laura , Salinas Ricardo , Aydi Elias , Dage Kristen C. , Kawash Adam M.
Published: March 2020

We present the discovery of a likely new redback millisecond pulsar (MSP) binary associated with the Fermi γ-ray source 4FGL J2333.1–5527. Using optical photometric and spectroscopic observations from the Southern Astrophysical Research telescope, we identify a low-mass, main-sequence-like companion in a 6.9 hr, highly inclined orbit around a suspected massive neutron star primary. Archival XMM-Newton X-ray observations show this system has a hard power-law spectrum Γ = 1.6 ± 0.3 and L

X
 ∼ 5 × 1031 erg s−1, consistent with redback MSP binaries. Our data suggest that for secondary masses typical of redbacks, the mass of the neutron star is likely well in excess of ∼1.4 M
⊙, but future timing of the radio pulsar is necessary to bolster this tentative conclusion. This work shows that a bevy of nearby compact binaries still await discovery, and that unusually massive neutron stars continue to be common in redbacks.
A More Efficient Search for H2O Megamaser Galaxies: The Power of X-Ray and Mid-infrared Photometry
Authors: Kuo C. Y. , Hsiang J. Y. , Chung H. H. , Constantin A. , Chang Y.-Y. , Cunha E. da , Pesce D. , Chien W. T. , Chen B. Y. , Braatz J. A. , Zaw Ingyin , Matsushita S. , Lin J. C.
Published: March 2020

We present an investigation of the dependence of H2O maser detection rates and properties on the mid-IR active galactic nucleus (AGN) luminosity, L
AGN, and the obscuring column density, N
H, based on mid-IR and hard X-ray photometry. Based on spectral energy distribution fitting that allows for decomposition of the black hole accretion and star formation components in the mid-infrared, we show that the megamaser (disk maser) detection rate increases sharply for galaxies with 12 μm AGN luminosity

greater than 1042 erg s−1, from ≲3% (≲2%) to ∼12% (∼5%). By using the ratio of the observed X-ray to mid-IR AGN luminosity as an indicator of N
H, we also find that megamaser (disk maser) detection rates are boosted to 15% (7%) and 20% (9%) for galaxies with N
H ≥ 1023 cm−2 and N
H ≥ 1024 cm−2, respectively. Combining these column density cuts with a constraint for high

(≥1042 erg s−1) predicts further increases in the megamaser (disk maser) detection rates to 19% (8%) and 27% (14%), revealing unprecedented potential increases of the megamaser and disk maser detection rates by a factor of 7–15 relative to the current rates, depending on the chosen sample selection criteria. A noteworthy aspect of these new predictions is that the completeness rates are only compromised mildly, with the rates remaining at the level of ∼95%(∼50%) for sources with N
H ≥ 1023 cm−2 (N
H ≥ 1024 cm−2). Applying these selection methods to current X-ray AGN surveys predicts the detection of ≳15 new megamaser disks.
The Gravitational Instability of Adiabatic Filaments
Authors: Coughlin Eric R. , Nixon C. J.
Published: March 2020

Filamentary structures, or long and narrow streams of material, arise in many areas of astronomy. Here we investigate the stability of such filaments by performing an eigenmode analysis of adiabatic and polytropic fluid cylinders, which are the cylindrical analog of spherical polytropes. We show that these cylinders are gravitationally unstable to perturbations along the axis of the cylinder below a critical wavenumber k
crit ≃ few, where k
crit is measured relative to the radius of the cylinder. Below this critical wavenumber, perturbations grow as

, where τ is time relative to the sound-crossing time across the diameter of the cylinder, and we derive the growth rate σ
u as a function of wavenumber. We find that there is a maximum growth rate σ
max ∼ 1 that occurs at a specific wavenumber k
max ∼ 1, and we derive the growth rate σ
max and the wavenumbers k
max and k
crit for a range of adiabatic indices. To the extent that filamentary structures can be approximated as adiabatic and fluidlike, our results imply that these filaments are unstable without the need to appeal to magnetic fields or external media. Further, the objects that condense out of the instability of such filaments are separated by a preferred length scale, form over a preferred timescale, and possess a preferred mass scale.
Physical Parameters of Late-type Contact Binaries in the Northern Catalina Sky Survey
Authors: Sun Weijia , Chen Xiaodian , Deng Licai , de Grijs Richard
Published: March 2020

We present the physical parameters of 2335 late-type contact binary (CB) systems extracted from the Catalina Sky Survey (CSS). Our sample was selected from the CSS Data Release 1 by strictly limiting the prevailing temperature uncertainties and light-curve fitting residuals, allowing us to almost eliminate any possible contaminants. We developed an automatic Wilson–Devinney-type code to derive the relative properties of CBs based on their light-curve morphology. By adopting the distances derived from CB (orbital) period–luminosity relations (PLRs), combined with the well-defined mass–luminosity relation for the systems’ primary stars and assuming solar metallicity, we calculated the objects’ masses, radii, and luminosities. Our sample of fully eclipsing CBs contains 1530 W-, 710 A-, and 95 B-type CBs. A comparison with literature data and with the results from different surveys confirms the accuracy and coherence of our measurements. The period distributions of the various CB subtypes are different, hinting at a possible evolutionary sequence. W-type CBs are clearly located in a strip in the total mass versus mass-ratio plane, while A-type CBs may exhibit a slightly different dependence. There are no significant differences among the PLRs of A- and W-type CBs, but the PLR zero-points are affected by their mass ratios and fill-out factors. Determination of zero-point differences for different types of CBs may help us improve the accuracy of the resulting PLRs. We demonstrate that automated approaches to deriving CB properties could be a powerful tool for application to the much larger CB samples expected to result from future surveys.