bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design and experimental investigation of stepped horn with a hollow part to allow individual design of amplitude amplification factors for longitudinal-torsional vibration source
Authors: Asami Takuya , Miura Hikaru 
Published: February 2022

Abstract
In the ultrasonic vibration-assisted manufacturing method using complex vibration, the amplitude amplification factor of horn for each vibration is important. In this paper, we focus on longitudinal-torsional vibration as a complex vibration and propose a stepped horn with a hollow part as a horn that can design the amplification factors of these vibrations individually. The proposed equation for the amplification factor of the horn with a hollow part was derived from the equation of the conventional step horn without a hollow part, and the validity of the proposed equation was verified by the finite element method and experimental measurements. As a result, the validity of the equation was confirmed, and it was clarified that the proposed stepped horn with a hollow part can be individually designed for the amplitude amplification factors of longitudinal vibration and torsional vibration.
PAULO FREIRE E O DIÁLOGO
Authors: GOMES da SILVA Lisley C. , Franco Maria Amélia R. Santoro 
Published: February 2022

Resumo. Este artigo está pautado em pesquisas de uma tese de doutoramento que se apropria das concepções freireanas sobre o diálogo. Busca-se dimensioná-lo como sendo fomentador de espaços de possibilidades de práticas libertadoras. Neste texto, num breve resumo histórico da Pedagogia ocidental, buscar-se-á responder a questão: na história ocidental da Pedagogia em que condições a ideia pedagógica de diálogo esteve presente ou não? Para tal, utilizar-se-á contrapontos e indicações de Paulo Freire que referendam o diálogo e sua concretude. Trata-se de uma pesquisa bibliográfica, a qual tem como seus principais aportes teóricos: CAMBI (1999); FREIRE (1970); FRANCO (2012). Os resultados evidenciam que o processo de educação e de formação do homem, desde a antiguidade até os dias atuais, existiu uma predominância do não diálogo. Indícios indicam que essa ausência do diálogo reverbera nas condições atuais de desigualdade, exclusão, dominação e alienação da grande maioria dos seres humanos, destruindo sonhos, utopias e uma impossibilidade de um esperançar. Buscar espaços de possibilidades de transformação dessa lógica e a retomada da dignidade humana que está sendo massacrada, é necessário e urgente. Os pressupostos que permeiam a Pedagogia crítica na perspectiva de Paulo Freire, ancorados no princípio do diálogo freireano, ou seja, aquele que atua com esses oprimidos e com as suas circunstancialidades, pode ser uma possibilidade de transformação, de um (re)criar, um (re)inventar um mundo novo, pois o presente está aqui, posto, mas o futuro ainda está por ser criado, portanto, é possível acreditar num mundo melhor, mais digno, mais humano para todos.
O ENCONTRO ENTRE PEDAGOGIA FREIRIANA E PEDAGOGIA FEMINISTA
Authors: Vielmo Paula 
Published: February 2022

A pedagogia freiriana se encontra com a pedagogia feminista. E, mais do que um encontro, é inspiração para que as feministas desenvolvam uma pedagogia própria que trate acerca das opressões vividas pelas mulheres em suas dimensões de gênero, raça, classe e sexualidade, buscando por meio de uma práxis feminista, transformar a sociedade patriarcal capitalista de supremacia branca. Este texto objetiva refletir sobre o encontro entre Pedagogia Freiriana e Pedagogia Feminista e as possibilidades transformadoras que se abrem a partir dele. É um ensaio teórico que convida quem adere a pedagogia do oprimido a igualmente aderir a uma pedagogia que veja o oprimido como além de um homem, exercitando assim a criação para a qual Paulo Freire nos chamou a fazer a cada uma de suas obras, chamado alinhado com a proposta feminista de transformação da sociedade.
Penerapan Situs Bisnis dan Sosial Media Marketing pada UKM Greenfarm Makassar dalam Mendukung Program MBKM
Authors: Husain Tsalis Kurniawan , Amran Farizah Dhaifina 
Published: February 2022

Greenfarm Makassar merupakan salah satu UKM yang terdampak Covid-19. Upaya yang dilakukan Greenfarm Makassar untuk tetap bertahan di masa pandemi Covid-19 yaitu mengubah bisnis model dari B to B (Business to Business) ke B to C (Business to Consumer) dengan menyasar segmen market rumahtangga. Strategi pemasaran yang dilakukan yaitu dengan mengaktifkan kembali sosial media Instagram. Permasalahan yang dihadapi oleh mitra adalah kurangnya traffic yang dihasilkan dari penggunaan instagram sebagai media promosi organik (tidak berbayar) sehingga berimplikasi pada rendahnya jumlah transaksi yang terjadi. Selain itu, mitra belum memiliki rencana aksi dalam hal manajemen order pada bisnis model B to C. Metode pelaksanaan kegiatan yaitu dengan pendataan, pembuatan, pelatihan penggunan situs bisnis dan iklan berbayar sosial media. Rangkaian kegiatan ini dilakukan selama 1 bulan (Desember 2021).
Hasil kegiatan pengabdian ini adalah mitra telah memiliki situs bisnis berbasis e-commerce dengan alamat situs https://greenfarmmakassar.com yang membantu mitra dalam pengelolaan manajemen order online dari pelanggan. Selain itu, mitra juga telah mampu menjalankan iklan berbayar pada sosial media (Instagram ads) sehingga jumlah kunjungan dan pengikut akun Instagram bisnis mitra meningkat. Hal ini berdampak pada meningkatnya permintaan produk dan omzet penjualan mitra.
A Mathematical Approach Towards Random Road Profile Generation Based on Chaotic Signals of Chua's Circuit
Authors: Milani Sina , Momtaz Aidin , Amini Sarah , Amini Kasra , Sadeghi Shekoufeh , Qoreishi Ehsan , Haddadian Sanaz 
Published: February 2022

In response to application demands in vehicle dynamics and control, traffic engineering, urban planning, and logistics, the generation of an adequate artificial road profile in terms of the diversity of geometric scenarios has been addressed in the current manuscript. The underlying mathematical principles for generating a geometrically comprehensive, yet logically meaningful, 3D road profile have been taken from high and unbiased sweeping factors of random number sequences over their domain of interest. And to generate such random number sequences, the mathematically manipulated output signal of a well-established chaotic system has been utilized, namely that of the Chua's circuit. Having defined the target road profile mathematically with all its geometrical complexities, a suitable scheme derived from the mentioned chaotic signal has been used to generate the required random number sequences as defining parameters of the road profile. The scheme has been otherwise tested and proven to show the demanded level of randomness in literature. Several attempts have been made to create a diverse range of road profiles, considering the constraints imposed by vehicle dynamics. To generate the road geometries, the limitations imposed by the vehicle's motion, such as the limitations on corresponding curvatures, slopes, and banking angles are negotiated, in terms of vehicle dynamics and available tire-road friction forces, by evaluating how close a vehicle will be to its tire force capacity limits as it travels on sections of the generated road.
Tingkat Pengetahuan Obat Kuat Kepala Rumah Tangga Di Lamben-Segala Anyar, Lombok Tengah
Authors: Asrori Miza , Jufriadi Lalu , Ningsih Hasrun 
Published: February 2022

Tujuan penelitian ini untuk mengetahui tingkat pengetahuan tentang obat kuat pada kepala rumah tangga di Lamben-Segala Anyar, Kecamatan Pujut Kabupaten Lombok Tengah dan mengidentifikasi tingkat pengetahuan tentang aturan pemakaian, cara penggunaan, dan efek samping. Penelitian ini merupakan penelitian deskriptif, dan akan dilihat tingkat pengetahuan tentang obat kuat. Jumlah responden sebanyak 93 kepala rumah tangga pengambilan sampel menggunakan sampling jenuh. Teknik pengambilan data melalui wawancara menggunakan kuesioner, selanjutnya data dianalisis secara deskriptif. Hasil penelitian tingkat pengetahuan tentang obat kuat didapatkan responden berpengetahuan tinggi 29%, responden berpengetahuan sedang 56%, dan 15% responden berpengetahuan rendah.
Persepsi Ibu HamilTentang Kebutuhan Asam Folat, Zat Besi, Dan Kalsium Sebagai Persiapan Kehamilan Di Kota Mataram Dan Kabupaten Lombok Barat
Authors: Setyawati Irni , Handayani Sri 
Published: February 2022

Survey Demografi dan Kesehatan Indonesia (SDKI) tahun 2012 menemukan komplikasi selama kehamilan secara nasional sebesar 24%, sedangkan yang dimiliki provinsi Nusa Tenggara Barat (NTB) masih diatas angka nasional yaitu sebesar 33%(4). Komplikasi selama kehamilan dapat disebabkan oleh berbagai macam faktor, salah satu diantaranya yaitu belum adanya persiapan kehamilan saat sebelum konsepsi. Perempuan dengan riwayat merariq di pulau Lombok tahun 2015 tidak melakukan persiapan kehamilan baik dari konsumsi suplemen dan perilaku kesehatannya(8). Tujuan dilakukannya penelitian ini yaitu untuk mengidentifikasi perbedaan persiapan kehamilan berdasarkan persepsi ibu tentang kebutuhan asam folat, zat besi dan kalsium di kota Mataram dan kabupaten Lombok Barat.
Penelitian ini bersifat analitik komparatif dengan pendekatan retrospektif. Jumlah sampel yang diperoleh yaitu 64 orang. Teknik pengambilan sampel secara purposive sampling. Penelitian dilakukan di Puskesmas Kota Mataram dan Puskesmas kabupaten Lombok Barat pada bulan September – Oktober tahun 2017. Variabel diukur menggunakan kuesioner dan dianalisis dengan menggunakan uji Chi-Square.
Sebagian besar responden tidak melakukan persiapan kehamilan dan berpersepsi perlu mengkonsumsi asam folat, namun tidak perlu mengkonsumsi zat besi dan kalsium. Terdapat perbedaan bermakna persiapan kehamilan antara ibu yang berpersepsi perlunya mengkonsumsi asam folat dan zat besi dengan nilai p<0,05. Persepsi responden tentang perlunya mengkonsumsi asam folat, zat besi dan asam folat mempengaruhi persiapan kehamilan yang dilakukan oleh calon ibu. Diharapkan adanya penelitian lanjutan tentang faktor-faktor yang mempengaruhi persiapan kehamilan.
Pengaruh Pekerjaan Terhadap Tajam Penglihatan
Authors: Sudirman Sudirman 
Published: February 2022

Penurunan tajam penglihatan selain dipengaruhi oleh katarak juga disebabkan oleh penyakit yang mempengaruhi retina. Pekerjaan yang banyak terpapar sinar matahari tanpa pelindung, juga diperkirakan mempengaruhi tajam penglihatan. Penduduk di wilayah Puskesmas Kopang memiliki keadaan sosial ekonomi dan tingkat pendidikan yang masih rendah. Penelitian ini bertujuan untuk mengetahui pengaruh pekerjaan terhadap tajam penglihatan. Penelitian ini dilakukan di Puskesmas Kopang, Lombok Tengah mulai April sampai Mei 2018. Rancangan penelitian adalah cross sectional dengan jumlah sampel 73 responden yang berumur 40 tahun keatas yang diambil secara simple random sampling. Pengukuran tajam penglihatan menggunakan Tumbling E, data pekerjaan diambil dengan wawancara langsung mengenai aktivitas responden dari jam 10.00 sampai 14.00 wita tanpa pelindung mata, untuk mengetahui signifikasi data di analisis menggunakan uji Mann – Whitney menggunakan program SPSS versi 16.0 dengan tingkat kepercayaan 95% (? =0.05). Berdasarkan hasil analisis statistik, pekerjaan berpengaruh secara signifikan (P<0.05) terhadap tajam penglihatan yakni sebesar 41.1%, artinya pekerjaan luar ruangan tanpa pelindung dapat menyebabkan terjadinya penurunan tajam penglihatan sebesar 41.1%.
Hubungan Kebersihan Rumah Terhadap Kejadian Ispa Pada Balita Di Dusun Jabon Desa Sisik Wilayah Kerja Puskesmas Bagu Kecamatan Pringgarata Kabupaten Lombok Tengah Tahun 2018
Authors: Sulaiman Lalu , Amrullah Muhammad , Khairani Fuji , Hidayah Nurul 
Published: February 2022

Infeksi Saluran Pernafasan Akut (ISPA) merupakan penyakit yang sering dialami balita dengan gejala batuk, pilek, panas selama dua minggu terakhir. Survey mortalitas yang dilakukan oleh Subdit ISPA tahun 2016 menempatkan ISPA sebagai penyebab kematian bayi terbesar di Indonesia dengan persentase 32,10%. Lombok Tengah menunjukkan bahwa kasus terbanyak adalah Infeksi Saluran Pernafasan Akut dengan jumlah 19748 kasus, sedangkan di wilayah kerja Puskesmas Bagu Lombok Tengah tahun 2016, tercatat kasus ISPA pada Balita sebanyak 1272 kasus, kemudian pada tahun 2017 sebanyak 1204 kasus. ISPA dapat diakibatkan oleh faktor internal dalam rumah yang meliputi faktor perilaku, individu balita, lingkungan fisik rumah, dan faktor sosial. Penelitian ini bersifat analitik dengan pendekatan cross sectional. Adapun tujuan penelitian ini adalah untuk mengetahui hubungan kebersihan rumah terhadap kejadian ISPA pada balita. Penelitian dilakukan pada bulan juni 2018 dengan populasi sebanyak 46 kepala keluarga yang memiliki balita sedangkan sampel dalam penelitian ini sebanyak 32 kepala keluarga. Hasil penelitian ini menunjukkan bahwa 37,5% atau 12 balita mengalami ISPA dan 62,5% atau 20 balita yang tidak mengalami ISPA. Selanjutnya berdasarkan hasil analisa data diketahui bahwa ada hubungan antara kebersihan rumah terhadap kejadian ISPA pada balita menggunakan uji chi-square dengan nilai valueÂ p=0,002. Kesimpulan : ada hubungan yang signifikan antara kebersihan rumah terhadap kejadian ISPA pada balita. Saran :Â rekomendasi hasil penelitian ini dapat meningkatkan pengetahuan masyarakat serta meningkatkan pendidikan dan penyuluhan terkait kebersihan rumah dan kejadian ISPA pada balita.
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Gambaran Tumbuh Kembang Balita Stunting Umur 24-60 Bulan di Desa Pringgarata Wilayah Kerja UPT BLUD Puskesmas Pringgarata
Authors: Suhamdani Haris , Husen Lalu Sadam , Achmalona Teguh , Nining Fatria  , Ningsih Hasrun 
Published: February 2022

Stunting merupakan suatu kondisi gagal pertumbuhan pada anak (pertumbuhan tubuh dan otak) akibat kekurangan gizi dalam waktu yang lama. Status Gizi (PSG) 2018 menunjukkan prevalensi Balita stunting di Indonesia masih tinggi, yakni 30,8% di atas batasan yang ditetapkan WHO (20%). Mengetahui gambaran tumbuh kembang balita stunting di Desa Pringgarata wilayah kerja UPTD Puskesmas Pringgarata. Penelitian ini merupakan penelitian deskriptif dengan pendekatan kuantitatif. Populasi studi penelitian ini adalah semua balita stuntingÂ umur 24-60 bulan yang berada di Desa Pringgarata wilayah kerja Puskesmas Pringarata. Sampel berjumlah 93 orang balita. Tingkat pertumbuhan : berat badan kategori kurang 50 responden (53,76%), tinggi badan kategori pendek 58 responden (62,36%), lingkar kepala kategori sesuai 76 responden (81,72%).Tingkat perkembangan kategori meragukan 51 responden (54,83%). Ketidakcukupan asupan nutrisi yang berlangsung lama mulai dari semenjak masa kehamilan sampai usia 24 bulan menyebabkan tumbuh kembang anak menjadi terhambat.
Neutron Star–Neutron Star and Neutron Star–Black Hole Mergers: Multiband Observations and Early Warnings
Authors: Liu Chang , Shao Lijing 
Published: February 2022

Abstract
The detections of gravitational waves (GWs) from binary neutron star systems and neutron star–black hole systems provide new insights into dense matter properties in extreme conditions and associated high-energy astrophysical processes. However, currently, information about the neutron star equation of state (EoS) is extracted with very limited precision. Meanwhile, the fruitful results from the serendipitous discovery of the γ-ray burst alongside GW170817 show the necessity of early warning alerts. Accurate measurements of the matter effects and sky location could be achieved by joint GW detection from space and ground. In our work, based on two example cases, GW170817 and GW200105, we use the Fisher information matrix analysis to investigate the multiband synergy between the space-borne decihertz GW detectors and the ground-based Einstein Telescope (ET). We especially focus on the parameters pertaining to the spin-induced quadrupole moment, tidal deformability, and sky localization. We demonstrate that (i) only with the help of multiband observations we can constrain the quadrupole parameter; and (ii) with the inclusion of decihertz GW detectors, the errors of tidal deformability would be a few times smaller, indicating that many more EoSs could be excluded; (iii) with the inclusion of ET, the sky localization improves by about 1 order of magnitude. Furthermore, we have systematically compared the different limits from four planned decihertz detectors and adopting two widely used waveform models.
Spatially Resolved Modeling of Optical Albedos for a Sample of Six Hot Jupiters
Authors: Adams Danica J. , Kataria Tiffany , Batalha Natasha E. , Gao Peter , Knutson Heather A. 
Published: February 2022

Abstract
Optical secondary eclipse measurements made by Kepler reveal a diverse set of geometric albedos for hot Jupiters with equilibrium temperatures between 1550 and 1700 K. The presence or absence of high-altitude condensates, such as Mg2SiO4, Fe, Al2O3, and TiO2, can significantly alter optical albedos, but these clouds are expected to be confined to localized regions in the atmospheres of these tidally locked planets. Here, we present 3D general circulation models and corresponding cloud and albedo maps for six hot Jupiters with measured optical albedos in this temperature range. We find that the observed optical albedos of K2-31b and K2-107b are best matched by either cloud-free models or models with relatively compact cloud layers, while Kepler-8b’s and Kepler-17b’s optical albedos can be matched by moderately extended (f
sed = 0.1) parametric cloud models. HATS-11b has a high optical albedo, corresponding to models with bright Mg2SiO4 clouds extending to very low pressures (f
sed = 0.03). We are unable to reproduce Kepler-7b’s high albedo, as our models predict that the dayside will be dominated by dark Al2O3 clouds at most longitudes. We compare our parametric cloud model with a microphysical cloud model. We find that even after accounting for the 3D thermal structure, no single cloud model can explain the full range of observed albedos within the sample. We conclude that a better knowledge of the vertical mixing profiles, cloud radiative feedback, cloud condensate properties, and atmospheric metallicities is needed in order to explain the unexpected diversity of albedos in this temperature range.
A Census of Optically Dark Massive Galaxies in the Early Universe from Magnification by Lensing Galaxy Clusters
Authors: Shu Xinwen , Yang Lei , Liu Daizhong , Wang Wei-Hao , Wang Tao , Han Yunkun , Huang Xingxing , Lim Chen-Fatt , Chang Yu-Yen , Zheng Wei , Zheng XianZhong , Wang Junxian , Kong Xu 
Published: February 2022

Abstract
We present ALMA 870 μm and JCMT/SCUBA2 850 μm dust continuum observations of a sample of optically dark and strongly lensed galaxies in cluster fields. The ALMA and SCUBA2 observations reach a median rms of ∼0.11 mJy and 0.44 mJy, respectively, with the latter close to the confusion limit of the data at 850 μm. This represents one of the most sensitive searches for dust emission in optically dark galaxies. We detect the dust emission in 12 out of 15 galaxies at >3.8σ, corresponding to a detection rate of 80%. Thanks to the gravitational lensing, we reach a deeper limiting flux than previous surveys in blank fields by a factor of ∼3. We estimate delensed infrared luminosities in the range 2.9 × 1011–4.9 × 1012
L
⊙, which correspond to dust-obscured star formation rates of ∼30–520 M
⊙ yr−1. Stellar population fits to the optical-to-NIR photometric data yield a median redshift z = 4.26 and delensed stellar mass 6.0 × 1010
M
⊙. They contribute a lensing-corrected star formation rate density at least an order of magnitude higher than that of equivalently massive UV-selected galaxies at z > 3. The results suggest that there is a missing population of massive star-forming galaxies in the early Universe, which may dominate the SFR density at the massive end (M
⋆ > 1010.3
M
⊙). Five optically dark galaxies are located within r < 50″ in one cluster field, representing a potential overdensity structure that has a physical origin at a confidence level >99.974% from Poisson statistics. Follow-up spectroscopic observations with ALMA and/or JWST are crucial to confirm whether it is associated with a protocluster at similar redshifts.
A New Perspective on the Interiors of Ice-rich Planets: Ice–Rock Mixture Instead of Ice on Top of Rock
Authors: Vazan Allona , Sari Re’em , Kessel Ronit 
Published: February 2022

Abstract
Ice-rich planets are formed exterior to the water ice line and thus are expected to contain a substantial amount of ice. The high ice content leads to unique conditions in the interior, under which the structure of a planet is affected by ice interaction with other metals. We apply experimental data of ice–rock interaction at high pressure, and calculate detailed thermal evolution for possible interior configurations of ice-rich planets, in the mass range of super-Earth to Neptunes (5–15 M
⊕). We model the effect of migration inward on the ice-rich interior by including the influences of stellar flux and envelope mass loss. We find that ice and rock are expected to remain mixed, due to miscibility at high pressure, in substantial parts of the planetary interior for billions of years. We also find that the deep interior of planetary twins that have migrated to different distances from the star are usually similar, if no mass loss occurs. Significant mass loss results in separation of the water from the rock on the surface and emergence of a volatile atmosphere of less than 1% of the planet’s mass. The mass of the atmosphere of water/steam is limited by the ice–rock interaction. We conclude that when ice is abundant in planetary interiors the planet structure may differ significantly from the standard layered structure of a water shell on top of a rocky core. Similar structure is expected in both close-in and further-out planets.
Effect of the Nuclear Equation of State on Relativistic Turbulence-induced Core-collapse Supernovae
Authors: Boccioli Luca , Mathews Grant J. , Suh In-Saeng , O’Connor Evan P. 
Published: February 2022

Abstract
The nuclear equation of state (EOS) is an important component in the evolution of core-collapse supernovae. In this paper we make a survey of various EOSs in the literature and analyze their effect on spherical core-collapse models in which the effects of three-dimensional turbulence is modeled by a general relativistic formulation of Supernova Turbulence In Reduced-dimensionality (STIR). We show that the viability of the explosion is quite EOS dependent and that it best correlates with the early-time interior entropy density of the proto–neutron star. We check that this result is not progenitor dependent, although the lowest-mass progenitors show different explosion properties, due to the different pre-collapse nuclear composition. Larger central entropies also induce more vigorous proto–neutron star convection in our one-dimensional turbulence model, as well as a wider convective layer.