bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH PENGGUNAAN MEDIA BUKU SAKU KESPRO TERHADAP PELAKSANAAN PEMERIKSAAN PAYUDARA SENDIRI (SADARI) OLEH REMAJA DI SMAN I CIPANAS KABUPATEN LEBAK TAHUN 2015
Authors: Rokayah Yayah , Rusyanti Siti
Published: September 2020

Kanker payudara merupakan masalah kesehatan masyarakat yang penting karena mortalitas dan morbiditasnya yang tinggi. Pemeriksaan payudara sendiri (SADARI) perlu dikuasai dan dilakukan oleh remaja putri agar dapat melakukan deteksi dini kanker payudara. Salah satu upaya untuk meningkatkan pengetahuan dan keterampilan SADARI remaja adalah melalui penyuluhan SADARI dengan menggunakan media buku saku kesehatan reproduksi remaja. Banyak faktor yang menjadi penyebab mengapa hanya sebagian kecil wanita yang melakukan SADARI, diantaranya kepatuhan mereka yang dapat dipengaruhi oleh ketersediaan media. Oleh karena itu penelitian ini bertujuan mengetahui pengaruh penggunaan media buku saku kesehatan reproduksi dalam pelaksanaan SADARI oleh remaja di SMAN 1 Cipanas Kabupaten Lebak.

Penelitian dirancang menggunakan desain penelitian Kohort. Besar sampel sebanyak 108 responden. Data dianalisis menggunakan uji Chi Square

Hasil penelitian menunjukkan bahwa sebagian besar (91,7%) responden menggunakan media buku saku kesehatan reproduksi. Hanya sebagian kecil (6,5%) responden yang melakukan Pemeriksaan Payudara Sendiri (SADARI). Pada uji statistik (uji chi square) diperoleh hasil p=1,000artinya tidak ada perbedaan bermakna pada kedua variabel tersebut atau tidak ada hubungan yang signifikan antara penggunaan media buku saku kesehatan reproduksi remaja dengan pelaksanaan Pemeriksaan Payudara Sendiri (SADARI) oleh responden.

Selain media buku saku kesehatan reproduksi, disarankan perlu media lain seperti Pusat Informasi, Konseling Remaja & Mahasiswa (PIK R/M) dan pemberian informasi melalui penyuluhan kesehatan reproduksi remajadi sekolah secara periodik.
MULTIDRUG RESISTANT ESCHERICHIA COLI PADA SUMBER AIR MINUM DI KOTA TANGERANG
Authors: Aminah Aminah , Jamilatun Makhabah
Published: September 2020

Multidrug-resistant Escherichia coli (MDR E. coli) telah menjadi perhatian dalam hal kesehatan masyarakat di berbagai negara. Bakteri ini menyebabkan infeksi yang sulit ditangani sehingga dampak buruk yang ditimbulkan bagi kesehatan menjadi luas. Penelitian ini bertujuan untuk menentukan prevalensi dan kerentanan MDR E. coli yang diisolasi dari sumber air minum masyarakat yang berada di Kota Tangerang. Penelitian ini dilaksanakan pada bulan Mei – Juni 2015. Desain yang digunakan adalah penelitian eksperimental laboratorium. Populasi dalam penelitian ini adalah seluruh bakteri E. coli yang diisolasi dari sumber air minum masyarakat di Kota Tangerang. Semua bakteri yang diisolasi digunakan sebagai sampel. Hasil penelitian menunjukkan bahwa dari 16 sumber air minum masyarakat, enam di antaranya positif mengandung E. coli dan satu sumber air minum positif mengandung MDR E. coli. Oleh karena itu untuk mencegah masalah kesehatan yang lebih jauh, perlu dilakukan pemeriksaan berkala terhadap berbagai bakteri patogen yang ada di masyarakat.
ISOLASI DAN IDENTIFIKASI ESCHERICHIA COLI PADA AIR WUDHU DI MASJID YANG BERADA DI KOTA TANGERANG
Authors: Jamilatun Makhabah , Aminah Aminah
Published: September 2020

Air sebagai salah satu kebutuhan utama dalam menunjang kehidupan manusia beresiko membawa penyakit bawaan air (water borne disease) jika tidak memenuhi syarat kesehatan. Salah satu pemanfaatan air adalah digunakan sebagai air wudhu. Penelitian ini bertujuan untuk mengetahui keberadaan Escherichia coli pada air wudhu di Masjid yang berada di Kota Tangerang. Desain penelitian yang digunakan adalah penelitian deskriptif dengan uji laboratorium dengan jumlah sampel 15. Pengambilan sampel dilakukan pada masjid yang telah ditentukan, selanjutnya dilakukan pemeriksaan laboratorium yang meliputi nilai MPN coliform untuk mengetahui kualitas air, dilanjutkan isolasi dan identifikasi Escherichia coli pada media EMBA (Eosin Methylin Blue Agar) serta uji produksi hemolisin pada media agar darah. Hasil penelitian menunjukkan bahwa Terdapat keberadaan bakteri Escherichia coli pada air wudhu di Masjid yang berada di Kota Tangerang. Dari hasil identifikasi Escherichia coli, dapat diketahui dari 15 sampel yang diteliti terdapat 6 sampel air wudhu yang teridentifikasi E.coli, dua diantaranya bersifat hemolisis. Oleh karena itu penjaga masjid untuk senantiasa menjaga kebersihan air bak penampungan dengan teratur serta kebersihan lingkungan di sekitar masjid.
HUBUNGAN SENAM ASMA TERHADAP KUALITAS PASIEN ASMA DI RUMAH SAKIT UMUM KABUPATEN TANGERANG
Authors: Kusniawati Kusniawati , Wasliyah Siti
Published: September 2020

Kualitas hidup merupakan persepsi individu atas posisinya dalam kehidupan dengan system social dan system nilai di lingkungannya dan dalam hubungannya dengan target, pengharapan, standard dan kepentingan pasien. Penilitian ini bertujuan untuk mengidentifikasi hubungan senam asma dengan kualitas hidup pasien asma di Rumah Sakit Umum Kabupaten Tangerang. Penilitian korelasi dengan desain cross sectional, jumlah sampel 30 responden dengan teknik pengambilan yaitu quota sampling, pengumpulan data menggunakan kuesioner. Analisis stastistik menggunakan uji chi square. Hasil analisis  menunjukan bahwa ada hubungan antara senam asma dengan kualitas hidup pasien asma (p = 0,000; a = 0,05). Senam asma dapat di gunakan sebagai intervensi mandiri dalam manajemen asuhan keperawatan pasien asma.
UJI AKTIVITAS ANTIOKSIDAN EKSTRAK METANOL DARI DAUN ALOCASIA MACRORRHIZOS DENGAN METODE DPPH
Authors: Anliza Syarah , Hamtini Hamtini
Published: September 2020

Penyakit degenaratif seperti kanker, tekanan darah ting, dan sebagainya semakin banyak dan mudah ditemui dikalangan masyarakat. Pola hidup yang praktis dan instan, khususnya pada pemilihan makanan, memiliki dampak negatif bagi kesehatan. Radikal bebas adalah molekul yang sangat rekatif karena memiliki elektron yang tidak berpasangan dalam orbital luarnya. Kerja radikal bebas dapat dihambat oleh antioksidan yakni zat yang dapat memperlambat dan mencegah terjadinya oksidasi molekul. Adanya senyawa antioksidan mengurangi timbulnya penyakit kronis. Tanaman Alocasia macrorrhizos merupakan tanaman alternatif.

Penelitian ini bertujuan untuk mengetahui aktivitas antioksidan ekstrak metanol dari daun Alocasia macrorrhizos dengan menggunakan metode DPPH. Pelarut yang digunakan adalah metanol. Ekstraksi metanol dari daun Alocasia macrorrhizos dilakukan uji fitokimia untuk mengetahui kandungan pada daun tersebut. Hasil ekstraksi selanjutnya diuji antioksidan dengan menggunakan metode DPPH, yang mana pembanding adalah vitamin C.

Hasil dari penelitian ini didapatkan bahwa ekstrak metanol dari daun Alocasia macrorrhizos terdapat senyawa flavonoid. Hasil uji aktivitas antioksidan didapatkan IC50 sebesar 314,885 ppm.
SUBSTANSI MODUL KONSELING SEBAYA DALAM MENGATASI PERMASALAHAN KESEHATAN REPRODUKSI PADA REMAJA AKHIR
Authors: Ismiyati Ismiyati , Sunjaya Deni K. , Susanah Susi
Published: September 2020

Perilaku seks pranikah pada remaja cukup tinggi. Hal tersebut didasari dari gaya berpacaran yang tidak sehat sehingga dapat melakukan hubungan seks pranikah. Perilaku seks pranikah pada remaja memiliki risiko terhadap kehamilan yang tidak diinginkan. Hasil SKDI 2012 menunjukkan 10% remaja wanita umur 15−19 tahun sudah menjadi ibu, 7% remaja pernah melahirkan, dan 3% sedang hamil anak pertama. Desain penelitian yang digunakan adalah metode kualitatif. Informan penelitian kualitatif berjumlah 11 orang. Penelitian dilakukan di Provinsi Banten pada bulan Januari−Juni 2017. Pada saat memberikan konseling seorang konselor harus memahami tentang materi ataupun substansi yang dikonselingkan. Hal ini dibutuhkan untuk memberikan informasi kekonseli. Informasi yang tepat akan membantu konseli menyelesaikan masalahnya. Konseling sebaya pada remaja membutuhkan modul. Substansi yang harus ada dalam modul pada penelitian ini diantaranya adalah tumbuh kembang remaja, kesehatan reproduksi, penyakit seksual, keluarga berencana, dan napza. Substansi tersebut digunakan untuk membantu mengatasi permasalahan yang dialami remaja berkaitan dengan kesehatan remaja.
PENGARUH PENGETAHUAN DAN MASA BEKERJA BIDAN TERHADAP PELAKSANAAN UNIVERSAL PRECAUTION PADA PERTOLONGAN PERSALINAN DI WILAYAH KOTA TANGERANG SELATAN
Authors: Iswanti Tutik , Nurdiati R. Detty Siti , Fitriana K Herlin
Published: September 2020

Universal precaution merupakan bagian dari keselamatan dan kesehatan kerja (K3) yang sangat diperlukan dalam aktivitas pelayanan kesehatan dan secara signifikan mengurangi jumlah insiden kerja karena paparan darah. Dikota Tangerang selatan pada tahun 2015 terdapat 15 kasus kematian ibu, penyebab infeksi intrapartum (6,7%) dan kematian bayi sebanyak 37 kasus, penyebab dari infeksi sebesar 13,5% dan 10,8% karena HIV/AIDS. Penelitian ini bertujuan untuk mengetahui hubungan pengetahuan dan masa bekerja terhadap pelaksanaan universal precaution pada pertolongan persalinan oleh bidan. Pada penelitian ini terdapat variabel independent yaitu pengetahuan dan masa bekerja dan variabel dependent yaitu pelaksanaan universal precaution pada pertolongan persalinan. Desain penelitian yang digunakan adalah Cross Sectional, berupa pengisian kuesioner dengan sampel 88 bidan. Uji statistik yang digunakan adalah Uji Fisher. Hasil penelitian yang didapat adalah bidan yang mempunyai pengetahuan baik sebanyak 89,9%, masa bekerja lama sebanyak 89,8% dan melaksanakan universal precaution pada pertolongan persalinan dengan baik sebanyak 84,1%. Terdapat hubungan yang signifikan antara pengetahuan terhadap pelaksanaan universal precaution dengan pvalue 0,033 dan terdapat hubungan yang bermakna antara masa bekerja terhadap pelaksanaan universal precaution dengan pvalue 0,004.
PENGARUH UMUR DAN RIWAYAT KONTAK DENGAN KEJADIAN TBC PARU PADA ANAK DI PUSKESMAS PERIUKJAYA KOTA TANGERANG
Authors: Wasludin Wasludin
Published: September 2020

Penelitian ini dilatar belakangi masih tingginya penderita Tuberculosis (TBC) paru di Wilayah kerja Puskesmas Periuk Jaya Kota Tangerang tahun 2013 yaitu sebanyak 34 kasus terdiri dari 22 orang dewasa dan 12 orang anak, oleh karena itu, peneliti ingin mengetahui faktor  umur, status imunisasi, status gizi, riwayat kontak, dan kesehatan rumah yang mempengaruhi kejadian TBC paru pada anak di Puskesmas Periuk Jaya Kota Tangerang.

Metode penelitian menggunakan analitik retrospektif dengan sampel total sampling menggunakan data primer yang didapatkan melalui wawancara, pengukuran dan observasi. Hasil penelitian diperoleh bahwa p-value umur dengan kejadian TBC paru 0,015 (< 0,05) artinya ada pengaruh umur terhadap kejadian TBC paru anak, nilai p-value riwayat kontak dengan kejadian TBC 0,015 (< 0,05), artinya ada pengaruh riwayat kontak terhadap kejadian TBC, p-value status imunisasi 0,168 (> 0,05), dan nilai p-value status gizi 0,168 (> 0,05), artinya tidak ada pengaruh status imunisasi dan status gizi terhadap kejadian TBC.

Berdasar hasil tersebut disimpulkan bahwa umur lebih muda (0-5 tahun) dan riwayat kontak mempunyai pengaruh terhadap kejadian tbc paru, oleh karena itu disarankan agar petugas Puskesmas memberikan penyuluhan tentang cara mencegah  penularan TBC paru dan memantau kesehatan rumah.
Akurasi Bantuan Stimulan Perumahan Swadaya (BSPS) terhadap RTLH Menggunakan Metode Weighted Product
Authors: Apriliana Milla , Nurcahyo Gunadi Widi
Published: September 2020

Bantuan Stimulan Perumahan Swadaya (BSPS) merupakan program dari Kementerian Pekerjaan Umum dan Perumahan Rakyat yang diselenggarakan oleh pemerintah. Kabupaten Agam merupakan salah satu wilayah yang memperoleh BSPS sejak tahun 2016 dengan jumlah yang cukup besar. Dalam penentuan peneriamaan BSPS pihak kecamatan masih mengambil keputusan secara subyektif, sehingga fakta dilapangan menunjukan masih banyak masyarakat kurang mampu yang tidak tercantum sebagai salah satu penerima program tersebut. Penelitian ini dilakukan untuk membantu Pengambilan Keputusan dalam menentukan Akurasi penerimaan program BSPS terhadap Rumah Tidak Layak Huni (RTLH) agar tepat sasaran dengan bantuan implementasi sistem menggunakan metode Weighted Product. Metode Weighted Product menggunakan teknik perkalian untuk menghubungkan rating atribut, kemudian rating atribut dipangkatkan dengan bobot atribut yang bersangkutan, bobot dan kriteria tersebut disesuaikan dengan ketentuan yang telah ditetapkan pada Dinas Perumahan Rakyat dan Kawasan Permukiman di Kabupaten Agam. Terdapat 10 kriteria utama dan 20 data uji yang akan di olah dalam melakukan perhitungan. Hasil pengolahan data memberikan nilai bobot pada setiap kriteria dan selanjutnya dilakukan perangkingan untuk mendapatkan bantuan Rumah Layak Huni. Implementasi dari sistem ini berbasis website dengan menggunakan bahasa pemrograman PHP dan MySQL sebagai databasenya. Hasil dari pengujian terhadap metode ini didapatkan nilai tertinggi yaitu 0.059 dari alternatif ke 19 yaitu Junaidi. Kemudian dilakukan perbandingan dengan perhitungan manual dengan sistem yang dibuat dan mendapatkan hasil yang sama dengan tingkat akurasi 100% dan dinyatakan akurat. Sistem Pendukung Keputusan yang diterapkan dapat menentukan prioritas penerima program BSPS yang didapatkan dari hasil akurasi data terbesar sehingga dapat membantu pihak Kecamatan dalam pengambilan keputusan secara tepat dan objektif.
Sistem Pakar dengan Metode Backward Chaining untuk Optimalisasi Layanan Helpdesk E-Government
Authors: Hariona Popi , Defit Sarjon , Sumijan Sumijan
Published: September 2020

Layanan helpdesk e-Government merupakan layanan bantuan untuk menangani kebutuhan user terkait dengan gangguan dan permasalahan yang terjadi baik itu infrastruktur dan jaringan, aplikasi dan sistem informasi serta keamanan informasi yang terjadi di Pemerintah Kota Payakumbuh. Pada saat ini sebagian besar pengaduan yang masuk pada front office helpdesk selalu membutuhkan teknisi dalam penanganannya, meskipun adanya keterbatasan jumlah teknisi untuk penanganan permasalahan e-Government di Kota Payakumbuh. Penelitian ini bertujuan untuk optimalisasi Layanan Helpdesk e-Government sehingga dapat dilakukan pelayanan tanpa campur tangan teknisi secara langsung. Data yang digunakan pada penelitian ini adalah data laporan gangguan yang masuk ke layanan helpdesk e-Government Kota Payakumbuh selama 11 bulan terakhir dari 33 Perangkat Daerah yang ada di Kota Payakumbuh dan tahapan-tahapan penyelesaian permasalah oleh teknisi.  Penelitian ini menggunakan metode backward chaining untuk mengidentifikasi penyebab terjadinya gangguan layanan e-Government. Hasil yang dicapai penelitian ini adalah sebanyak 21 Rule yang dapat diaplikasikan secara langsung pada layanan helpdesk, dengan tingkat akurasi sebesar 92%.  Rule yang dihasilkan dengan metode backward chaining dapat digunakan untuk optimalisasi penyelesaian gangguan yang masuk ke helpdesk oleh front office tanpa menunggu teknisi.
Comparative analysis of Maximum Power Point Tracking Algorithms for Photovoltaic Applications
Authors: Ammaiyappan Bharathi Sankar , Seyezhai R.
Published: September 2020

Currently, photovoltaic system has gained importance in electrical power generation system, since it is a clean and renewable energy source. An important characteristic of photovoltaic panels is that the available maximum power is provided only in a single operating point called maximum power point. But the position of maximum power point is not fixed and it moves according to the varying irradiance, varying temperature and the load. This requires a mechanism called maximum power point tracking (MPPT) so that maximum power is obtained effectively. In the literature, many classical methods have been developed and implemented to track the maximum power point. The main objective of this paper is to study and analyze the classical techniques such as Perturb and Observe (P&O), Incremental Conductance (IC) and Fuzzy Logic Control (FLC) algorithms and propose an Adaptive Fuzzy Logic Control (AFLC) for MPPT. The performance of AFLC is compared with the conventional MPPT techniques for varying irradiance. The significance of these methods are studied by implementing the algorithm in MATLAB. The experimental results show the effectiveness and feasibility of the proposed method and the results are verified. The results reveal that the adaptive FLC can quickly track change of MPP for various light intensity and delivers higher power compared to the classical algorithms.
Registered Replication Report of Weissman, D. H., Jiang, J., & Egner, T. (2014). Determinants of congruency sequence effects without learning and memory confounds
Authors: Gyurkovics Mate , Kovacs Marton , Jaquiery Matt , Palfi Bence , Dechterenko Filip , Aczel Balazs
Published: September 2020

The congruency sequence effect (CSE) refers to the finding that the effect of cognitive conflict is smaller following conflicting, incongruent trials than after non-conflicting, congruent trials in conflict tasks, such as the Stroop, Simon, and flanker tasks. This is typically interpreted as an upregulation of cognitive control in response to conflict. Weissman, Jiang, & Egner (2014) investigated whether the CSE appears in these three tasks and a further variant where task-irrelevant distractors precede the target (prime-probe task), in the absence of learning and memory confounds in samples collected online. They found significant CSEs only in the prime-probe and Simon tasks, suggesting that the effect is more robust in tasks where the distractor can be translated into a response faster than the target. In this Registered Replication Report we collected data online from samples approx. 2.5 times larger than in the original study for each of the four tasks to investigate whether the task-related differences in the magnitude of the CSE are replicable (Nmin = 115, Nmax = 130). Our findings extend but do not contradict the original results: Bayesian analyses suggested that the CSE was present in all four tasks in RT but only in the Simon task in accuracy. The size of the effect did not differ between tasks, and the size of the congruency effect was not correlated with the size of the CSE across participants. These findings suggest it might be premature to conclude that the difference in the speed of distractor- vs target-related response activation is a determinant of the size of cross-trial modulations of control. The practical implications of our results for online data collection in cognitive control research are also discussed.
Revisiting the remember–know task: Replications of Gardiner and Java (1990)
Authors: Haaf Julia M. , Rhodes Stephen , Naveh-Benjamin Moshe , Sun Tony , Snyder Hope K. , Rouder Jeffrey N.
Published: September 2020

One of the most evidential behavioral results for two memory processes comes from Gardiner and Java (Memory & Cognition, 18, 23–30 1990). Participants provided more “remember” than “know” responses for old words but more know than remember responses for old nonwords. Moreover, there was no effect of word/nonword status for new items. The combination of a crossover interaction for old items with an invariance for new items provides strong evidence for two distinct processes while ruling out criteria or bias explanations. Here, we report a modern replication of this study. In three experiments, (Experiments 1, 2, and 4) with larger numbers of items and participants, we were unable to replicate the crossover. Instead, our data are more consistent with a single-process account. In a fourth experiment (Experiment 3), we were able to replicate Gardiner and Java’s baseline results with a sure–unsure paradigm supporting a single-process explanation. It seems that Gardiner and Java’s remarkable crossover result is not replicable.
On the frequency dependence of viscoelastic material characterization with intermittent-contact dynamic atomic force microscopy: avoiding mischaracterization across large frequency ranges
Authors: López-Guerra Enrique A , Solares Santiago D
Published: September 2020

Atomic force microscopy (AFM) is a widely use technique to acquire topographical, mechanical, or electromagnetic properties of surfaces, as well as to induce surface modifications at the micrometer and nanometer scale. Viscoelastic materials, examples of which include many polymers and biological materials, are an important class of systems, the mechanical response of which depends on the rate of application of the stresses imparted by the AFM tip. The mechanical response of these materials thus depends strongly on the frequency at which the characterization is performed, so much so that important aspects of behavior may be missed if one chooses an arbitrary characterization frequency regardless of the materials properties. In this paper we present a linear viscoelastic analysis of intermittent-contact, nearly resonant dynamic AFM characterization of such materials, considering the possibility of multiple characteristic times. We describe some of the intricacies observed in their mechanical response and alert the reader about situations where mischaracterization may occur as a result of probing the material at frequency ranges or with probes that preclude observation of its viscoelastic behavior. While we do not offer a solution to the formidable problem of inverting the frequency-dependent viscoelastic behavior of a material from dynamic AFM observables, we suggest that a partial solution is offered by recently developed quasi-static force–distance characterization techniques, which incorporate viscoelastic models with multiple characteristic times and can help inform dynamic AFM characterization.
Pengembangan Perangkat Pembelajaran Matematika SMP dengan Pendekatan Brain Based Learning Berorientasi Pada Kemampuan Koneksi Matematis
Authors: Ainun Fitriani  , Ewan Irawan
Published: September 2020

Penelitian pengembangan ini bertujuan untuk menghasilkan perangkat pembelajaran matematika SMP dengan pendekatan Brain Based Learning (BBL) berorientasi pada kemampuan koneksi matematis siswa yang berkualitas baik, berdasarkan aspek kevalidan, kepraktisan, dan keefektifan. Penelitian ini menggunakan model pengembangan ADDIE yang meliputi tahap analysis, design, development, implementation, evaluation. Sebanyak 23 siswa di kelas VII8 MTs Negeri 2 Kota Bima yang dijadikan subyek penelitian. Instrumen penelitian yang digunakan adalah lembar kevalidan, lembar penilaian guru, lembar penilaian siswa, lembar observasi keterlaksanaan pembelajaran, dan tes kemampuan koneksi matematis.  Analisis data kevalidan, kepraktisan, dan keefektifan dilakukan dengan mengkonversi skor aktual menjadi data kualitatif. Hasil penelitian ini berupa perangkat pembelajaran matematika SMP dengan pendekatan Brain Based Learning (BBL) yaitu RPP dan LKS. Kualitas kevalidan berdasarkan penilaian validator menunjukkan bahwa perangkat pembelajaran yang dikembangkan telah memenuhi kriteria valid dengan rata-rata skor untuk RPP sebesar 193 (sangat baik) dan untuk LKS sebesar 114 (baik). Kualitas kepraktisan menunjukkan bahwa perangkat pembelajaran yang dikembangkan telah memenuhi kriteria praktis dengan skor berdasarkan penilaian guru sebesar 74 (sangat baik), penilaian siswa 38,78 (baik), dan persentase keterlaksanaan pembelajaran sebesar 94% (sangat baik). Kualitas keefektifan menunjukkan bahwa perangkat pembelajaran yang dikembangkan telah memenuhi kriteria efektif dengan rata-rata persentase ketuntasan tes kemampuan koneksi matematis sebesar 75% (baik).
Pengembangan Kreativitas Dalam Pembelajaran Matematika Melalui Model Brain Based Learning Siswa Sekolah Dasar
Authors: Adi Apriadi Adiansha  , Husnul Khatimah  , Asriyadin
Published: September 2020

Pengembangan kreativitas menjadi hal yang terpenting dalam proses pembelajaran, agar siswa belajar bagaimana menemukan jawaban yang inovatif dan belajar bagaimana melihat suatu pemecahan masalah dari berbagai sudut pandang serta dapat menyelesaikan pemecahan masalah dengan kreativitas. Tujuan penelitian yaitu untuk mengetahui pengembangan kreativitas dalam pembelajaran matematika melalui model Brain Based Learning pada siswa SD. Jenis penelitian yang digunakan metode ekperimen murni, dimana kelas Eksperimen yaitu SDN Nggembe dan Kelas Kontrol yaitu SDN Rada yang ada di Kecamatan Bolo Kabupaten Bima. Instrumen yang digunakan menggunakan kreativitas matematika yang telah dikembangkan dari penelitian sebelumnya sesuai dengan indikator-indikator pada kelancaran, keluwesan, keaslian, dan elaborasi. Pengumpulan data penelitian menggunakan soal essay dalam mengukur kreativitas matematika siswa. Hasil penelitian menunjukkan bahwa model Brain Based Learning mampu mengembangkan kreativitas yang dimilki siswa dan mendorong sisa untuk memiliki ide dan gagasan yang terbaru dalam menyelesaikan permasalahan dalam proses pembelajaran sesuai dengan pengetahuan yang dimilikinya. Sehingga penelitian ini layak untuk diteliti dan dikembangkan ke tahap penelitian berikutnya
Analisis Karakteristik Gaya Belajar VAK (Visual, Auditori, Kinestetik) Siswa Pada Pembelajaran Fisika
Authors: Yulianci Syahriani , Nurjumiati
Published: September 2020

Gaya belajar siswa merupakan salah satu info penting yang perlu diperoleh sebelum guru melakukan kegiatan pembelajaran, agar guru dapat menentukan desain pembelajaran yang cocok pada kelas tersebut. Penelitian deskriptif kualitatif ini bertujuan untuk menganalisis karakteristik gaya belajar siswa. Subjek penelitian terdiri dari 74 siswa yang merupakan siswa kelas X di salah satu Madrasah Aliyah di Kabupaten Bima. Penentuan sampel dilakukan secara purposive sampling. Instrumen gaya belajar berupa angket berbentuk pilihan ganda, dengan jumlah 22 butir soal, dan masing-masing soal memiliki tiga pilihan jawaban. Gaya belajar yang diteliti fokus pada gaya belajar Visual, Auditori, dan Kinestetik. Data dianalisis secara kualitatif dan kuantitatif. Data yang diperoleh, siswa lebih cenderung pada gaya belajar Auditori dengan jumlah 51%, sedangkan Visual sebanyak 14% dan Kinestetik sebanyak 15%. Selain itu juga ditemukan kecenderungan gaya belajar yang persentase dimiliki sama besar, yaitu gabungan Visual Auditori sebesar 8% dan gabungan Auditori Kinestetik 12%. Sehingga dari penelitian ini dapat disimpulkan bahwa siswa kelas X yang mengikuti pembelajaran fisika lebih cenderung pada gaya belajar auditori. Guru yang akan mengajar di kelas tersebut dapat menyesuaikan model dan media pembelajaran yang sesuai dengan gaya belajar yang dimiliki oleh siswa.
A Review Paper on Performance Behavior of High Volume Fly-Ash Concrete Under Elevated Temperature
Authors: . Ashwini , HS Naveen Kumar , T R Nikhil
Published: September 2020

Removal of fly ash (FA) coming about because of the burning of coal-terminated electric fire stations and nuclear power plants is one of the major natural difficulties. This test keeps on expanding with expanding the measure of FA and diminishing the limit of landfill space. Consequently, considers have been done to re-utilize high-volumes of fly ash (HVFA) as concrete substitution in development materials. This paper presents a diagram of the past investigations did on the utilization of high volume FA as a fractional substitution of concrete in customary solid blends dependent on Portland concrete (PC). Crisp properties, mechanical properties, warm properties and electrical resistivity of solid blends containing HVFA as concrete substitution have been surveyed additionally depicts the an outline of the past investigations on various kinds of cement presented to changing raised temperature and their quality properties over the temperature introduction are assessed.
Alignment Methods in Rotating Equipment
Authors: Moreno Isitro Trejo , Pérez Yair de Jesús González , Hernández Oscar Hernández , Ramírez Aline Díaz , Corona José Luis Hernández , Vazquez Ernesto Mendoza
Published: September 2020

This research provides an analysis about the need to implement innovative alignment techniques and to diversify the methods to carry it out, if there is outdated equipment, misalignment becomes more recurrent and this causes the equipment to present failures as high vibration, high temperature, product leaks, excessive energy consumption and wear of some equipment components. In turn, this text exposes the methodologies of alignment of axes by straight edge, dial indicator, and by laser alignment, and makes a comparison of the advantages and disadvantages between these three methods to conclude which of them brings greater benefits to the industry today.
A Binary Star in the Superbubble N160 in the Large Magellanic Cloud
Authors: Ishioka Ryoko , Chu 朱有 You-Hua 花 , Points Sean D. , Li 李傳 Chuan-Jui 睿 , Chen Chen-Hung
Published: September 2020

We have made a spectroscopic investigation of the nature of 053949.17−693747.4, a blue star with mid-infrared excess, projected within a superbubble in the H ii complex N160 in the Large Magellanic Cloud (LMC). Analyses of photometric and spectrophotometric data of this star indicate that it is an O7 ± 1 V in the LMC. The radial velocity of this star from a 2010 spectrum shows an offset of ∼150 km s−1 from that of the background interstellar medium (ISM), while the spectra taken in 2020 show stellar velocity similar to the ISM velocity. The velocity variations indicate that 053949.17−693747.4 must be a binary system. The lack of spectroscopic features from a stellar companion and the large radial velocity variations of the primary O7 star imply that the companion is most likely an early-type B star. Hubble Space Telescope Hα and [O iii] images of 053949.17−693747.4 show a small nebula around the star with the southern rim resembling a blow-shock-like structure. While the physical nature as a bow shock cannot be robustly established, this small nebula is likely the cause of 053949.17−693747.4's mid-infrared excess. Spectroscopic monitoring over an entire binary period is needed to establish the period and systemic velocity to determine the properties of the binary companion and whether this binary system is a runaway.
Cosmic Distributions of Stellar Tidal Disruptions by Massive Black Holes at Galactic Centers
Authors: Chen Yunfeng , Yu Qingjuan , Lu Youjun
Published: September 2020

Stars can be consumed (either tidally disrupted or swallowed whole) by massive black holes (MBHs) at galactic centers when they move into the vicinity of the MBHs. In this study, we investigate the rates of stellar consumption by central MBHs and their cosmic distributions, including the effects of triaxial galaxy shapes in enhancing the reservoir of low-angular-momentum stars and incorporating realistic galaxy distributions. We find that the enhancement in the stellar consumption rates due to triaxial galaxy shapes can be significant, by a factor of ∼3 for MBH mass

–

and up to more than one order of magnitude for

. Only for

are the stellar consumption rates significantly higher in galaxies with steeper inner surface brightness profiles. The average (per galaxy) stellar consumption rates correlate with central MBH masses positively for

and negatively for

. The volumetric stellar tidal disruption rates are

for MBHs in the mass range 105–

at z = 0; and the volumetric stellar consumption rates by MBHs with higher masses are

, which can be the stellar tidal disruption rate if the high-mass BHs are extremely spinning Kerr BHs or the rate of being swallowed if those BHs are Schwarzschild ones. The volumetric stellar consumption rates decrease with increasing redshift, and the decrease is relatively mild for

–

and stronger for higher

. Most of the stellar tidal disruption events (TDEs) at z = 0 occur in galaxies with mass

, and about 1%–2% of the TDEs can occur in high-mass galaxies with

.
Diffusive Hydrogenation Reactions of CO Embedded in Amorphous Solid Water at Elevated Temperatures ∼70 K
Authors: Tsuge Masashi , Hidaka Hiroshi , Kouchi Akira , Watanabe Naoki
Published: September 2020

The surface processes on interstellar dust grains have an important role in the chemical evolution in molecular clouds. Hydrogenation reactions on ice surfaces have been extensively investigated and are known to proceed at low temperatures mostly below 20 K. In contrast, information about the chemical processes of molecules within an ice mantle is lacking. In this work, we investigated diffusive hydrogenation reactions of carbon monoxide (CO) embedded in amorphous solid water (ASW) as a model case and discovered that the hydrogenation of CO efficiently proceeds to yield H2CO and CH3OH even above 20 K when CO is buried beneath ASW. The experimental results suggest that hydrogen atoms diffuse through the cracks of ASW and have a sufficient residence time to react with embedded CO. The hydrogenation reactions occurred even at temperatures up to ∼70 K. Cracks collapse at elevated temperatures but the occurrence of hydrogenation reactions means that the cracks would not completely disappear and remain large enough for penetration by hydrogen atoms. Considering the hydrogen-atom fluence in the laboratory and molecular clouds, we suggest that the penetration of hydrogen and its reactions within the ice mantle occur in astrophysical environments.
The Strength of the Dynamical Spiral Perturbation in the Galactic Disk
Authors: Eilers Anna-Christina , Hogg David W. , Rix Hans-Walter , Frankel Neige , Hunt Jason A. S. , Fouvry Jean-Baptiste , Buck Tobias
Published: September 2020

The mean Galactocentric radial velocities

of luminous red giant stars within the midplane of the Milky Way reveal a spiral signature, which could plausibly reflect the response to a nonaxisymmetric perturbation of the gravitational potential in the Galactic disk. We apply a simple steady-state toy model of a logarithmic spiral to interpret these observations, and find a good qualitative and quantitative match. Presuming that the amplitude of the gravitational potential perturbation is proportionate to that in the disk’s surface mass density, we estimate the surface mass density amplitude to be

at the solar radius when choosing a fixed pattern speed of

. Combined with the local disk density, this implies a surface mass density contrast between the arm and inter-arm regions of approximately ±10% at the solar radius, with an increase toward larger radii. Our model constrains the pitch angle of the dynamical spiral arms to be approximately 12°.
A Census of Sub-kiloparsec Resolution Metallicity Gradients in Star-forming Galaxies at Cosmic Noon from HST Slitless Spectroscopy
Authors: Wang Xin , Jones Tucker A. , Treu Tommaso , Daddi Emanuele , Brammer Gabriel B. , Sharon Keren , Morishita Takahiro , Abramson Louis E. , Colbert James W. , Henry Alaina L. , Hopkins Philip F. , Malkan Matthew A. , Schmidt Kasper B. , Teplitz Harry I. , Vulcani Benedetta
Published: September 2020

We present the hitherto largest sample of gas-phase metallicity radial gradients measured at sub-kpc resolution in star-forming galaxies in the redshift range of z ∈ [1.2, 2.3]. These measurements are enabled by the synergy of slitless spectroscopy from the Hubble Space Telescope near-infrared channels and the lensing magnification from foreground galaxy clusters. Our sample consists of 76 galaxies with stellar mass ranging from 107 to 1010

, an instantaneous star formation rate in the range of [1, 100]

yr−1, and global metallicity

of solar. At a 2σ confidence level, 15/76 galaxies in our sample show negative radial gradients, whereas 7/76 show inverted gradients. Combining ours and all other metallicity gradients obtained at a similar resolution currently available in the literature, we measure a negative mass dependence of Δlog(O/H)/

 = (−0.020 ± 0.007) + (−0.016 ± 0.008)

, with the intrinsic scatter being σ = 0.060 ± 0.006 over 4 orders of magnitude in stellar mass. Our result is consistent with strong feedback, not secular processes, being the primary governor of the chemostructural evolution of star-forming galaxies during the disk mass assembly at cosmic noon. We also find that the intrinsic scatter of metallicity gradients increases with decreasing stellar mass and increasing specific star formation rate. This increase in the intrinsic scatter is likely caused by the combined effect of cold-mode gas accretion and merger-induced starbursts, with the latter more predominant in the dwarf mass regime of

.
Revisiting the Magnetic Field of the L183 Starless Core
Authors: Karoly Janik , Soam Archana , Andersson B-G , Coudé Simon , Bastien Pierre , Vaillancourt John E. , Lee Chang Won
Published: September 2020

We present observations of linear polarization from dust thermal emission at 850 μm toward the starless cloud L183. These data were obtained at the James Clerk Maxwell Telescope (JCMT) using the SCUBA-2 camera in conjunction with its polarimeter POL-2. Polarized dust emission traces the plane-of-sky magnetic field structure in the cloud, thus allowing us to investigate the role of magnetic fields in the formation and evolution of its starless core. To interpret these measurements, we first calculate the dust temperature and column density in L183 by fitting the spectral energy distribution obtained by combining data from the JCMT and the Herschel space observatory. We used the Davis–Chandrasekhar–Fermi technique to measure the magnetic field strength in five subregions of the cloud, and we find values ranging from ∼120 ± 18 μG to ∼270 ± 64 μG in agreement with previous studies. Combined with an average hydrogen column density (

) of ∼1.5 × 1022 cm−2 in the cloud, we also find that all five subregions are magnetically subcritical. These results indicate that the magnetic field in L183 is sufficiently strong to oppose the gravitational collapse of the cloud.
Protostellar Collapse: Regulation of the Angular Momentum and Onset of an Ionic Precursor
Authors: Marchand Pierre , Tomida Kengo , Tanaka Kei E. I. , Commerçon Benoît , Chabrier Gilles
Published: September 2020

Through the magnetic braking and the launching of protostellar outflows, magnetic fields play a major role in the regulation of angular momentum in star formation, which directly impacts the formation and evolution of protoplanetary disks and binary systems. The aim of this paper is to quantify those phenomena in the presence of nonideal magnetohydrodynamics effects, namely, the ohmic and ambipolar diffusion. We perform three-dimensional simulations of protostellar collapses varying the mass of the prestellar dense core, the thermal support (the α ratio), and the dust grain size distribution. The mass mostly influences the magnetic braking in the pseudo-disk, while the thermal support impacts the accretion rate and hence the properties of the disk. Removing the grains smaller than 0.1 μm in the Mathis–Rumpl–Nordsieck distribution enhances the ambipolar diffusion coefficient. Similar to previous studies, we find that this change in the distribution reduces the magnetic braking with an impact on the disk. The outflow is also significantly weakened. In either case, the magnetic braking largely dominates the outflow as a process to remove the angular momentum from the disk. Finally, we report a large ionic precursor to the outflow with velocities of several km s−1, which may be observable.
The Origin of Elements from Carbon to Uranium
Authors: Kobayashi Chiaki , Karakas Amanda I. , Lugaro Maria
Published: September 2020

To reach a deeper understanding of the origin of elements in the periodic table, we construct Galactic chemical evolution (GCE) models for all stable elements from C (A = 12) to U (A = 238) from first principles, i.e., using theoretical nucleosynthesis yields and event rates of all chemical enrichment sources. This enables us to predict the origin of elements as a function of time and environment. In the solar neighborhood, we find that stars with initial masses of M > 30M
⊙ can become failed supernovae if there is a significant contribution from hypernovae (HNe) at M ∼ 20–50M
⊙. The contribution to GCE from super-asymptotic giant branch (AGB) stars (with M ∼ 8–10M
⊙ at solar metallicity) is negligible, unless hybrid white dwarfs from low-mass super-AGB stars explode as so-called Type Iax supernovae, or high-mass super-AGB stars explode as electron-capture supernovae (ECSNe). Among neutron-capture elements, the observed abundances of the second (Ba) and third (Pb) peak elements are well reproduced with our updated yields of the slow neutron-capture process (s-process) from AGB stars. The first peak elements (Sr, Y, Zr) are sufficiently produced by ECSNe together with AGB stars. Neutron star mergers can produce rapid neutron-capture process (r-process) elements up to Th and U, but the timescales are too long to explain observations at low metallicities. The observed evolutionary trends, such as for Eu, can well be explained if ∼3% of 25–50M
⊙ HNe are magneto-rotational supernovae producing r-process elements. Along with the solar neighborhood, we also predict the evolutionary trends in the halo, bulge, and thick disk for future comparison with Galactic archeology surveys.
Determination of social and economic accessibility of drugs for treatment of Parkinson’s disease on the basis of modern approaches
Authors: Kotvitska Alla , Prokopenko Oleksii
Published: September 2020

In the context of the economic crisis, the availability of medicines for the population is one of the key issues facing pharmaceutical sector of healthcare system. Due to the fact of that, the purpose of the work was to study the social and economic accessibility of medicines, since such studies in the future may provide an opportunity for effective input of medicines costs reimbursement system, which will increase their availability, especially for socially vulnerable groups of population. The data analysis of the clinical protocols of Great Britain, Kazakhstan and Ukraine was conducted, and the indicators of social and economic availability within 2014–2018 were calculated. The obtained results indicate an adequate level of availability of medicines for the able-bodied population and, unfortunately, a low level of accessibility of medicines for people of retirement age with a tendency to further descension. These results point the necessity of the further research and development of government control systems and provision of pharmaceutical care for the population.
Is shifting to US-style deregulation the inevitable consequence of Brexit?
Authors: Dearden Nick
Published: September 2020

A US trade deal is a crucial part of Johnson's post-Brexit drive towards deregulation. The deal is seen as a golden opportunity to import an American-style lax approach to regulation. For the US negotiators, any imposition of regulations and standards on imported goods is seen as creating
unfair barriers for trade. This is the cause of headlines about chlorinated chickens, but will also affect public services - which are regarded as unfair competition. Price regulation - as, for example, for drugs used by the NHS - is also seen as interference. A deal is also likely to include
clauses binding the settlement into the 'corporate courts' system, which allows businesses to prosecute governments for 'discriminating' against them. In the EU Britain was protected against such demands from bigger states, and its MEPS could vote on treaty terms. However UK MPs do not have
oversight over such deals. A wide coalition has been formed to oppose the deal, which may be able to reach beyond the 'Brexit divide'.
World makers of the Black Atlantic
Authors: Adom Getachew Talks to Ashish Ghadiali
Published: September 2020

In Worldmaking After Empire, Adom Getachew challenges standard histories of decolonisation, which chart the story of a simple shift from empire to independent nationhood. She shows that supporters of decolonisation have always sought to create something much more than nationalisms:
they have engaged in a dynamic and rival system of revolutionary worldmaking, seeking an alternative international system that could replace the old inequitable dispensation. She charts this decolonial project from its roots in the works of Black Atlantic thinkers like W.E.B. Du Bois and C.L.R.
James in the 1920s and 1930s. The key events she tracks are the challenges the project faced in the United Nations in the 1940s and 1950s; attempts at regional federation in late 1950s and 1960s; and the emergence of the New International Economic Order in the 1960s and 1970s. This a twentieth
century tradition now ripe to be reclaimed and revived.
Intramuscular Pressure Is Almost Three Times Higher in Fibromyalgia Patients: A Possible Mechanism for Understanding the Muscle Pain and Tenderness
Authors: Katz Robert S. , Leavitt Frank , Small Alexandra Katz , Small Ben J.
Published: September 2020

Objective

Widespread pain in fibromyalgia syndrome (FMS) is conventionally viewed as arising from disordered central processing. This study examines intramuscular pressure in the trapezius as an alternative mechanism for understanding FMS pain.

Methods

One hundred eight patients who satisfied the American College of Rheumatology criteria for FMS and 30 patients who met the ACR criteria for another rheumatic disease comprised the study groups. Muscle pressure was measured in mmHg using a pressure gauge attached to a no. 22 needle inserted into the mid-portion of the trapezius muscle. In addition, patients with FMS and rheumatic disease controls had dolorimetry testing, digital palpation, and reported pain scores.

Results

Muscle pressure was substantially higher in patients with FMS with a mean value of 33.48 ± 5.90 mmHg. Only 2 of 108 patients had muscle pressure of < 23 mmHg. The mean pressure in rheumatic disease controls was 12.23 ± 3.75 mmHg, with a range from 3–22 mmHg. Patients with FMS were more tender than controls based on both dolorimetry (P < 0.001) and digital palpation (P < 0.001). The mean pain score in patients with FMS and controls was 6.68 ± 1.91 and 1.43 ± 1.79, respectively (P < 0.001).

Conclusion

Pressure in the trapezius muscle of patients with FMS is remarkably elevated and may be an intrinsic feature of FMS that could be monitored as part of the diagnostic evaluation. The burden of the pressure abnormality may help explain the diffuse muscle pain of FMS. Therefore, FMS as a disorder of exclusively central pain processing should be revisited. Therapeutically, the reduction of muscle pressure may change the clinical picture significantly.
Pegloticase in Combination With Methotrexate in Patients With Uncontrolled Gout: A Multicenter, Open-label Study (MIRROR)
Authors: Botson John K. , Tesser John R.P. , Bennett Ralph , Kenney Howard M. , Peloso Paul M. , Obermeyer Katie , LaMoreaux Brian , Weinblatt Michael E. , Peterson Jeff
Published: September 2020

Objective

To examine the efficacy and safety of pegloticase in combination with methotrexate (MTX) in patients with uncontrolled gout in an exploratory, open-label clinical trial (ClinicalTrials.gov: NCT03635957) prior to a randomized, controlled trial.

Methods

A multicenter, open-label efficacy and safety study of pegloticase with MTX co-treatment was conducted in patients with uncontrolled gout. Patients were administered oral MTX (15 mg/week) and folic acid (1 mg/day) 4 weeks prior to and throughout pegloticase treatment. The primary study outcome was the proportion of responders, defined as serum uric acid (sUA) < 6 mg/dL for ≥ 80% of the time during Month 6 (Weeks 20, 22, and 24). All analyses were performed on a modified intent-to-treat population, defined as patients who received ≥ 1 pegloticase infusion.

Results

Seventeen patients were screened and 14 patients (all men, average age 49.3 ± 8.7 years) were enrolled. On Day 1, mean sUA was 9.2 ± 2.5 mg/dL, and 12 of the 14 patients had visible tophi. At the 6-month timepoint, 11/14 (78.6%, 95% CI 49.2–95.3%) met the responder definition, with 3 patients discontinuing after meeting protocol-defined treatment discontinuation rules (preinfusion sUA values > 6 mg/dL at 2 consecutive scheduled visits). All patients tolerated MTX. No new safety concerns were identified.

Conclusion

In this study, an increased proportion of patients maintained therapeutic response at 6 months when treated concomitantly with MTX and pegloticase as compared to the previously reported 42% using pegloticase alone. These results support the need for a randomized study of MTX or placebo with pegloticase to validate these open-label findings.