bluuebunny/crossref_metadata_2025_split huggingface dataset:
Crescimento vegetativo de rabanete sob efeitos de compostos orgânicos / Vegetative growth of radish under the effects of organics
Authors: Silva Luís Cláudio Vieira , De Souza Girlene Santos , Dos Santos Anacleto Ranulfo , Braulio Caliane da Silva , Santos Joeferson da Silva , Brito Gildeon Santos , Oliveira Amanda Santos 
Published: March 2022

Plantas crescidas em substratos com fontes e proporções de compostos orgânicos distintos apresentam desempenho diferentes no seu desenvolvimento. Nos últimos anos, utilizações de lixo agroindustrial, como integrante da compostagem, vem ganhando destaque na nutrição de plantas, entretanto são escassas informações quanto a sua aplicação em cultivo de rabanete, uma hortaliça raiz de ciclo curto e de grande valor nutricional. Neste contexto, este trabalho teve como objetivo avaliar o crescimento de plantas de rabanete nutridas com diferentes substratos orgânicos oriundos de resíduo agroindustrial e de compostagem. O delineamento experimental foi inteiramente casualizado utilizando duas fontes alternativas de composto orgânico, provenientes de lixo agroindustrial (COLA) e da Fazenda Experimental da UFRB (COUFRB), e três doses (0, 300 e 600 g dm-3). Assim, a pesquisa foi constituída por cinco tratamentos: T1 = 0 g dm-3 (testemunha), T2 = COLA 300 g dm-3, T3 = COLA 600 g dm-3, T4 = COUFRB 300 g dm-3, T5 = COUFRB 600 g dm-3, com 10 repetições, totalizando 50 unidades experimentais, as quais foram constituídas de uma planta por vaso. Decorridos 30 dias após a semeadura, avaliaram-se as seguintes variáveis de crescimento: número de folhas; altura da parte aérea; massas das matérias secas do sistema radicular, das folhas e total, as relações da massa da matéria seca da raiz e total; e raiz e folha. Posteriormente, os dados coletados foram submetidos à análise de variância e à comparação de médias por meio do teste de Tukey a 5 % de probabilidade. Concluiu-se que plantas de rabanete crescidas em substratos a base de composto orgânico na Fazenda Experimental da UFRB apresentaram maiores altura, fitomassa e relações massas secas da raiz e total, e da massas da raiz e folha.
Surface-emitting photonic crystal terahertz quantum cascade laser adopting uniform triangular prism photonic crystal with a double-metal waveguide
Authors: Yun Joosun , Lin Tsung-Tse , Hirayama Hideki 
Published: March 2022

Abstract
Herein, we investigate surface-emitting photonic crystal terahertz quantum cascade lasers adopting double metal waveguide for high light extraction efficiency by utilizing finite-difference time-domain and filter diagonalization method. For the ease of fabrication and scalability of beam power, only a typical uniform 2D unit cell with triangular lattice and connected metal electrodes are considered in this study. Cylinder or uniform triangular prism photonic crystals are adopted as resonators within the selected unit cell structure. Candidate

Γ

-point modes for efficient surface-normal emission are searched based on the unit cell analysis as a first step. After that, far-field, field distribution, and light-extraction efficiency are calculated to verify the candidate modes’ suitability by deploying 15(16) × 15 unit cells. Extracted results show that the surface-emitting quantum cascade lasers with triangular prism photonic crystal slabs have the possibility to attain high light-extraction efficiency with Gaussian beam shape even with compact chip size and high active region occupancy.
Termination area design for reduced leakage current and improved ruggedness of HV IGBTs
Authors: Gao Mingchao , Jin Rui , Pathirana Vasantha , Chan Chunwa , Udugampola Nishad , Trajkovic Tanya , Udrea Florin 
Published: March 2022

Abstract
A termination design which efficiently reduces leakage current and improves robustness of very high voltage insulated gate bipolar transistors (IGBTs) (>3.3 kV) without adversely affecting other device characteristics is presented here. Proposed design uses a selectively formed Buried N+ layer in the N-buffer under the termination region. Optimised placement of the N+ buried regions reduces carrier modulation in the termination area thus lowering the leakage current and reducing maximum temperature during the reverse bias safe operating area tests. This improves dynamic ruggedness of the IGBT without deteriorating other device characteristics.
Detection system for Legionella bacteria using photogate-type optical sensor
Authors: Honda Yuto , Ichikawa Ryosuke , Choi Yong Joon , Murakami Kensuke , Takahashi Kazuhiro , Noda Toshihiko , Sawada Kazuaki , Ishii Hiromu , Machida Katsuyuki , Ito Hiroyuki , Miyahara Satoshi , Nikaido Yasuhiko , Saito Mitsumasa 
Published: March 2022

Abstract
This study describes a bacterial sensing system using a photogate-type fluorescence sensor for the purpose of identifying Legionella bacteria, which are known to emit different fluorescence for each bacterial species when irradiated with UV excitation light. First a weak-photocurrent measurement system in combination with a photogate-type optical sensor and a circuit board which was mounted with a current–voltage converter, an analog-to-digital converter, and a microcomputer was fabricated. Then weak-light measurement was performed by simulating the bacterial fluorescence of Legionella. A difference in the current ratio generated in the sensor was found depending on the wavelength of the LED light source, showing that the system works as a spectrometer. Finally, the system was applied to measure the fluorescence of the species of Legionella dumoffii and Legionella erythra and each species of Legionella was identified just by obtaining the current ratio.
High-extinction-ratio Si optical modulator loaded with integrated polarizer
Authors: Kojima Hiroki , Fujikata Junichi , Kita Tomohiro 
Published: March 2022

Abstract
We propose a carrier-depletion type Si optical modulator for transverse electric (TE) polarization loaded with an integrated polarizer. The integrated TE-pass polarizer with a bent waveguide has a compact and simple structure and demonstrate a polarization extinction ratio of 41.3 dB and insertion loss of 0.67 dB. This Si optical modulator loaded with the integrated polarizer achieved a maximum extinction ratio of 54.5 dB. It is expected to have a wide range of applications in digital coherent optical communication and optical sensing fields.
Improved f
T/f
max in wide bias range by steam-annealed ultrathin-Al2O3 gate dielectrics for InP-based high-electron-mobility transistors
Authors: Ozaki Shiro , Kumazaki Yusuke , Okamoto Naoya , Hara Naoki , Ohki Toshihiro 
Published: March 2022

Abstract
In this study, we successfully achieved flat cutoff frequency (f
T) and maximum oscillation frequency (f
max) across a wide bias range on InP-based high-electron-mobility transistors (HEMTs) using a steam-annealed ultrathin-Al2O3 gate dielectric due to the reduction in gate leakage current and increase in forward breakdown voltage. Fourier transform infrared spectroscopy analysis demonstrated that steam annealing reduced defects in atomic layer deposited-Al2O3 because of the hydrolysis of carbon impurities and that reducing electron traps suppressed the increase in sheet resistance due to dielectric passivation. Consequently, the insulated-gate HEMTs developed show a high f
max of > 700 GHz across a wide bias range.
Pemanfaatan Aplikasi Quizizz sebagai Media Penilaian Pembelajaran Ilmu Pengetahuan Alam
Authors: Rahmawati Dhian Nuri , Nisa Ana Fitrotun , Astuti Dwi , Fajariyani Fajariyani , Suliyanti Suliyanti 
Published: March 2022

Proses penilaian belajar siswa merupakan komponen penting sebagai upaya memperoleh informasi capaian pembelajaran. Pemanfaatan teknologi (komputasi) membuat proses ini lebih efektif. Quizizz menjadi salah satu platform yang diharapkan mampu menarik minat, dan menambah konsenterasi siswa. Penelitian ini menggunakan metode deskriptif kualitatif untuk menggambarkan kondisi minat dan konsentrasi belajar siswa kelas VI di SDN Banjarharjo. Penelitian ini menggunakan berbagai insturmen untuk mengumpulkan data (1) lembar obeservasi, (2) kuesioner/angket respon peserta didik; (3) lembar pedoman wawancara sebagai pendukung hasil kuesioner respon peserta didik. Hasil penelitian memberikan gambaran bahwa aplikasi Quizizz dapat meningkatkan minat dan konsentrasi siswa dalam mengerjakan soal penailian untuk mencapai hasil yang maksimal.
Penggunaan Media Big Book untuk Meningkatkan Literasi Siswa Kelas Satu Madrasah Ibtidaiyyah
Authors: Aisah Siti , Rini Seta 
Published: March 2022

Latar belakang dari penelitian ini adalah kurangnya kemampuan literasi siswa terutama keterampilan membaca setelah sekian lama pembelajaran dilaksanakan secara daring, tujuan dari penelitian ini adalah untuk mengetahui manfaat penggunaan big book dalam kegiatan pembiasaan kelas 1 MI Darussalam Sumowono dalam bidang kemampuan literasi. Penelitian ini dengan pendekatan kualitatif deskriptif dengan subyek penelitian siswa Kelas I MI Darussalam Sumowono, Kecamatan Sumowono, Kabupaten Semarang. Hasil dari penelitian ini adalah setelah guru memanfaatkan media big book untuk kegiatan membaca, kemampuan literasi siswa meliputi keterampilan menyimak, berbicara, membaca dan menulis sangat baik, hal ini dibuktikan dengan keterampilan membaca lancar siswa kelas I MI Darussalam mencapai 65 % dalam kategori cukup, keaktifan siswa dalam unjuk kerja malalui diskusi kelompok, produk berupa buku kecil atau mini book serta evalauasi akhir mencapai 89.28 % dalam kategori baik.
Gambaran Pengetahuan Wanita Usia Subur Tentang Pencegahan Kanker Payudara Di Puskesmas Maccini Sawah Makassar 2019
Authors: Rukinah Rukinah 
Published: March 2022

Telah dilakukan penelitian tentang Gambaran Pengetahuan Wanita Usia Subur Tentang Pencegahan Kanker Payudara di Puskesmas Maccini Sawah Makassar. Jenis penelitian yang digunakan adalah jenis deskriptif. Populasi adalah seluruh wanita usia subur yang ada diwilayah kerja Puskesmas Maccini Sawah. Sampel adalah yang memenuhi kriteria inklusi subjek yaitu penelitian dapat mewakili sampel penelitian yang memenuhi syarat sebagai sampel, sedangkan kriteria eksklusi yaitu subjek penelitian tidak dapat mewakili sampel karena tidak memenuhi syarat sebagai sampel penelitian. Hasil penelitian menunjukkan bahwa pengetahuan wanita usia subur tentang pengertian kanker payudara terdapat 68 orang (68%) yang tahu dan 32 orang (32%) yang tidak tahu. Pengetahuan tentang faktor resiko kanker payudara hanya 43 orang (43%) yang tahu dan 57 orang (57%) yang tidak tahu. Pengetahuan tentang gejala kanker payudara hanya 4 orang (64%) yang tahu dan 36 orang (36%) yang tidak tahu. Pengetahuan tentang pencegahan kanker payudara hanya 74 orang (74%) yang tahu dan 26 orang (26%) yang tidak tahu. Pengetahun tentang pemeriksaan payudara sendiri hanya 55 orang (55%) yang tahu dan 45 orang (45%) yang tidak tahu. Kesimpulan hasil penelitian dari 100 responden menunjukkan bahwa pengetahuan wanita usia subur tentang pengertian kanker payudara, gejala kanker payudara, pencegahan kanker payudara, pemeriksaan payudara sendiri di Puskesmas Maccini Sawah Makassar kualitasnya baik dan faktor resiko kanker kualitasnya kurang baik.
Formulasi dan Uji Mutu Fisik Pasta Dari Air Perasan Rimpang Lengkuas Merah (Alpinia purpurata K. Schum) Sebagai Penghambat Jamur Malassezia furfur Penyebab Panu
Authors: Asrina Rina 
Published: March 2022

Rimpang lengkuas sangat familiar di masyarakat, ada rimpang yang merah dan ada yang putih. Namun menurut hasil penelitian, rimpang lengkuas yang lebih efektif untuk menghambat jamur Malassezia furfur penyebab panu yaitu rimpang lengkuas merah (Alpinia purpurata K. Schum). Tujuan dari penelitian ini yaitu untuk membuat formula pasta dari air perasan rimpang lengkuas merah (Alpinia purpurata K. Schum) dengan mutu fisik yang baik. Penelitian ini termasuk jenis penelitian eksperimen laboratorium yang dilakukan di Laboratorium Farmasetika Jurusan Farmasi Politeknik Sandi Karsa Makassar. Metode penelitian meliputi formulasi sediaan pasta dari rimpang lengkuas merah yang sebelumnya telah diparut dan diperas airnya. Pasta yang dihasilkan kemudian diuji secara fisik. Hasil yang diperoleh yaitu sediaan salep berwarna putih sedikit kemerahan, bau khas lengkuas dengan bentuk semi padat, pasta homogen, bebas dari butiran kasar, pH sediaan yaitu pH 5, viskositas sediaan 2,447±257,7 (X±SD dpas), daya lekat 4,779±0,233 (X±SD detik), dan daya sebar 5,484±0,801 (X±SD cm). Semua pengujian yang dilakukan memenuhi syarat literatur sehingga disimpulkan bahwa air perasan rimpang lengkuas merah dapat membentuk sediaan pasta dengan mutu fisik yang baik.
Estudio sobre ansiedad en Residentes de Medicina Interna durante la pandemia de Covid-19, Guatemala
Authors: Racancoj Astrid , Pérez Cesar , Salguero Cesia , Moreno Christy , Duarte Iris , Xicará José , Arias José , Méndez Manuel , Del-Valle Manuel , Orozco Selvin 
Published: March 2022

Objetivo: estudiar el Trastorno de Ansiedad Generalizada en médicos residentes de Medicina Interna de la Facultad de Ciencias Médicas de la Universidad de San Carlos de Guatemala (USAC), durante la pandemia de Covid-19. Material y métodos: estudio analítico de corte transversal, no experimental, cuantitativo, en médicos residentes de Medicina interna de la USAC, en el hospital Roosevelt de Guatemala.. Se tomó la población total de médicos residentes que se encontraban laborando al momento del estudio, con previa autorización por medio de consentimiento informado, con un total de 42 participantes. Se recolectaron datos por medio de encuesta virtual utilizando la escala GAD-7 que consta de 7 preguntas, las cuales permiten clasificar los tipos de ansiedad. Resultados: de los 42 participantes se reporta: ansiedad moderada en 40.48% (n=17) y ansiedad severa en 30.95% (n=13). Predominaron el sexo femenino y el grupo etario de 26 a 30 años de edad. Discusión: es el primer trabajo con interés investigativo en encontrar síntomas de ansiedad causado por la pandemia Covid-19 en personal de salud en Guatemala. Al igual que en los estudios revisados en la literatura, se evidenció que el 90% del personal estudiado presenta síntomas de ansiedad, siendo el nivel moderado en 31%. La población bajo estudio se dividió según año en curso de residencia, evidenciando al personal de primer y segundo año como el más afectado. En comparación con los estudios revisados, no existe diferencia significativa de ansiedad entre sexos (masculino 45% y femenino 55%).
Predictores de mortalidad intrahospitalaria en infarto agudo al miocardio con elevación del segmento ST
Authors: Gómez José 
Published: March 2022

Objetivo: establecer los predictores de mortalidad intrahospitalaria en pacientes con infarto agudo al miocardio con elevación del segmento ST (IAMCEST) ingresados en medicina interna del Hospital Roosevelt, Guatemala, de enero de 2015 a diciembre de 2018. Introducción: las enfermedades cardiovasculares representan la primera causa de morbimortalidad en Latinoamérica. Según datos del Hospital Roosevelt, anualmente consultan al servicio de urgencias 1,677 pacientes por dolor precordial, representando la sexta causa de morbilidad, con incidencia de IAM de 10.3%, de los cuales el 38.8% fueron IAMCEST. Material y métodos: estudio analítico de casos y controles. Se utilizó simulación de tablas de contingencia con software G*Power 3.1.7. Se determinaron los OR utilizando tablas de contingencia con software EPIDAT y SPSS, evaluando asociación significativa bivariante e intervalos de confianza y análisis multivariante. Resultados: Basados en revisión de expedientes clínicos, se compararon 61 casos con 61 controles, con resultados según análisis bivariante: Edad > 65 años (OR 4.7; IC 95% 1.8-9.3), sexo femenino (OR 5.7; IC 95% 2.6-8.4), antecedente de HTA (OR 2.8; IC 1.1-7.4), >12 horas de evolución de los síntomas (OR 2.4; IC 95% 1.1-2.9), hipotensión arterial (OR 8.3; IC 95% 3.1-10.2), taquicardia (OR 5.4; IC 95% 3.5-8.2), clasificación de Killip & Kimball IV (OR 8.5; IC 95% 4.2-10.6), arritmias (OR 6.1; IC 95% 4.4-9.5), infecciones nosocomiales (OR 4.7; IC 95% 1.2-5.7), paro cardiorrespiratorio (OR 9.2; IC 95% 4.2-13.8). Discusión: los predictores de mortalidad intrahospitalaria para IAMCEST fueron: Edad > 65 años, sexo femenino, antecedente de HTA, > 12 horas de evolución de los síntomas, hipotensión arterial, taquicardia, clasificación Killip & Kimball III/IV, infecciones nosocomiales, arritmias y paro cardiorespiratorio.
Kebosanan Akademik dan Kecanduan Gadget Selama Pandemi Covid-19 Pada Remaja
Authors: Khan Muhammad Ravi , Aiyuda Nurul , Fadhli Muhammad 
Published: March 2022

Kecanduan gadget menggambarkan perilaku seseorang yang berlebihan atau kompulsif dalam menggunakan gadget. Perilaku ini dapat berpengaruh pada kehidupan sehari-hari, serta memungkinkan terjadinya masalah aspek sosial, emosional, mental, dan kultural. Diantara faktor yang dapat memengaruhi terjadinya kecanduan gadget adalah kebosanan akademik. Kebosanan akademik adalah keadaan gairah yang tidak optimal dalam dunia pendidikan, kurangnya minat dan motivasi belajar, tuntutan melebihi kemampuan individu dan kelelahan akibat kurangnya keterlibatan dengan rangsangan di lingkungan. Penelitian dilakukan untuk mengetahui hubungan antara kebosanan akademik dengan kecanduan gadget selama pandemic Covid-19 pada remaja. Subjek yang terlibat dalam penelitian ini diperoleh menggunakan teknik purposive sampling sehingga menghimpun sebanyak 306 remaja yang berusia 13-17 tahun (106 laki-laki dan 200 perempuan) di Pekanbaru. Dua buah skala digunakan dalam pengumpulan data, yaitu skala kebosanan akademik dan skala kecanduan gadget. Hasil yang signifikan ditemukan dalam penelitian ini yaitu adanya hubungan antara kebosanan akademik dengan kecanduan gadget pada remaja di Pekanbaru, yang berarti bahwa tinggi atau rendahnya kebosanan akademik memiliki korelasi dengan kecanduan gadget, dengan demikian hipotesis penelitian diterima.
SOFTWARE MODULE DEDICATED TO STUDENTS FOR DESIGNING THE WRAPPING OF THREE-PHASE MONITORED ROTARY ELECTRICAL MACHINES WITH A DIAMETER STEP AND A WHOLE NUMBER OF NOTCHES ON THE POLE AND PHASE
Authors:   University POLITEHNICA of Bucharest Faculty of Electrical Engineering, CHIRILĂ Aurel-Ionuț , DEACONU Ioan-Dragoș ,   University POLITEHNICA of Bucharest Faculty of Electrical Engineering, STĂNCESCU CÎRSTOIU Adelina-Maria ,   University POLITEHNICA of Bucharest Faculty of Electrical Engineering, BACIU George-Adrian ,   University POLITEHNICA of Bucharest Faculty of Electrical Engineering, IONESCU Andreea-Roxana ,   University POLITEHNICA of Bucharest Faculty of Electrical Engineering, POPESCU Sergiu Valentin ,   S.C. ELECTROTEHNICA Echipamente Electrice SA
Published: March 2022

This paper presents a software module that was developed to assist in the design of the radial section geometry of the stator of a three-phase rotary electric machine. In this regard, the designer must provide values ​​regarding the main dimensions of the stator components such as: inside and outside stator diameter, width and height of the stator notch isthmus, stator notch height, stator tooth width, air gap, etc. This program allows in addition to the automatic generation of stator geometry and the distribution of the magnetic field in the air gap of the three-phase rotary electric machine in a program based on the finite element method, but also the ability to graph or save in a file with numerical data and other sizes.
Meaning above (and in) the head: Combinatorial visual morphology from comics and emoji
Authors: Cohn Neil , Foulsham Tom 
Published: March 2022

AbstractCompositionality is a primary feature of language, but graphics can also create combinatorial meaning, like with items above faces (e.g., lightbulbs to mean inspiration). We posit that these “upfixes” (i.e., upwards affixes) involve a productive schema enabling both stored and novel face–upfix dyads. In two experiments, participants viewed either conventional (e.g., lightbulb) or unconventional (e.g., clover-leaves) upfixes with faces which either matched (e.g., lightbulb/smile) or mismatched (e.g., lightbulb/frown). In Experiment 1, matching dyads sponsored higher comprehensibility ratings and faster response times, modulated by conventionality. In Experiment 2, event-related brain potentials (ERPs) revealed conventional upfixes, regardless of matching, evoked larger N250s, indicating perceptual expertise, but mismatching and unconventional dyads elicited larger semantic processing costs (N400) than conventional-matching dyads. Yet mismatches evoked a late negativity, suggesting congruent novel dyads remained construable compared with violations. These results support that combinatorial graphics involve a constrained productive schema, similar to the lexicon of language.
In silico interactome analysis of cross-link repair proteins (RPA32b and RPA2) in Arabidopsis thaliana
Authors: Karić Amina , Abdel Gawwad Mohamed Ragab 
Published: March 2022

DNA molecule is found in every cell in a living organism and function as an instruction manual for growth, development, as well as any other processes that happen. As the cell divide, it needs to copy its DNA. During the copying, an error can occur, which can lead to a disease. However, there are different error repair mechanisms that are searching for an error, and repairing it. This study focused on 2 proteins involved in DNA repair mechanism, RPA32B and RPA2 from Arabidopsis thaliana. Throughout multiple in silico approached, multiple sequence alignment, phylogenetic tree construction, 3D visualisation, combination and interaction, we confirmed that the RPA2 and RPA 32b are involved in DNA replication, meiotic recombination and DNA repair mechanism.
Detection of Near-infrared Water Ice at the Surface of the (Pre)Transitional Disk of AB Aur: Informing Icy Grain Abundance, Composition, and Size
Authors: Betti S. K. , Follette K. , Jorquera S. , Duchêne G. , Mazoyer J. , Bonnefoy M. , Chauvin G. , Pérez L. M. , Boccaletti A. , Pinte C. , Weinberger A. J. , Grady C. , Close L. M. , Defrère D. , Downey E. C. , Hinz P. M. , Ménard F. , Schneider G. , Skemer A. J. , Vaz A. 
Published: March 2022

Abstract
We present near-infrared Large Binocular Telescope LMIRCam imagery of the disk around the Herbig Ae/Be star AB Aurigae. A comparison of the surface brightness at K

s
(2.16 μm), H2O narrowband (3.08 μm), and

L
′

(3.7 μm) allows us to probe the presence of icy grains in this (pre)transitional disk environment. By applying reference differential imaging point-spread function subtraction, we detect the disk at high signal-to-noise ratios in all three bands. We find strong morphological differences between the bands, including asymmetries consistent with the observed spiral arms within 100 au in

L
′

. An apparent deficit of scattered light at 3.08 μm relative to the bracketing wavelengths (K

s
and

L
′

) is evocative of ice absorption at the disk surface layer. However, the Δ(K

s
− H2O) color is consistent with grains with little to no ice (0%–5% by mass). The

Δ
(

H
2

O
−

L
′

)

color, conversely, suggests grains with a much higher ice mass fraction (∼0.68), and the two colors cannot be reconciled under a single grain population model. Additionally, we find that the extremely red

Δ
(

K

s

−
L
′
)

disk color cannot be reproduced under conventional scattered light modeling with any combination of grain parameters or reasonable local extinction values. We hypothesize that the scattering surfaces at the three wavelengths are not colocated, and that the optical depth effects in each wavelength result from probing the grain population at different disk surface depths. The morphological similarity between K

s
and H2O suggests that their scattering surfaces are near one another, lending credence to the Δ(K

s
− H2O) disk color constraint of <5% ice mass fraction for the outermost scattering disk layer.