bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nuevos desafíos de las pequeñas y medianas empresas en tiempos de pandemia
Authors: Adan Gallo Johanna Catalina , Munar López Laura Alejandra , Romero Duque Gustavo Andrés , Gordillo Galeano Aldemar 
Published: July 2022

Contexto: Las pymes representan aproximadamente el 50 % del PIB mundial, y debido a la pandemia por la covid-19, se han visto gravemente afectadas. Este documento proporciona un panorama general de factores que incidieron en la economía de las pymes y presenta algunas soluciones para mantener su operación en tiempos de dificultades.
Metodología: La elaboración del manuscrito esta soportada en literatura relevante publicada entre 2019 y 2021. La estrategia de búsqueda se aplicó a través de las bases de datos Embase, Web of Sciences, Scopus, bajo términos de búsqueda clave covid-19, pandemic, small enterprises, medium-sized enterprises, global economic, economic growth, developing countries, emerging economies, economic impact, financial fragility, government action*, credit risk, travel restriction*, e-commerce, digital technologie*, digital transformation, emerging market*, supply chain*, small business. Posteriormente, se efectuó la clasificación y análisis documental a través del método Raceer (recopilación, almacenamiento, elaboración esquemática conceptual, enlace de unidades informativas, redacción).
Resultados: El análisis de la información relevante reveló que la economía de las pymes cumplió un papel importante en la fuerte caída del PIB y en el aumento de los niveles de pobreza y desempleo a nivel mundial, y que aquellas que querían mantenerse en operación debieron reinventarse e incursionar con nuevas estrategias de negocio.
Conclusiones: La pandemia generada por la covid-19 produjo cambios significativos en hábitos de compra, métodos de fabricación y formas de trabajar que impactaron gravemente el desempeño de las pymes. Para lidiar con este nuevo escenario económico, se espera que la tecnología y la innovación direccionen a nuevos modelos de negocio de rápida adaptación.
ANALISIS EKONOMI PADA PERENCANAAN PEMBANGKIT LISTRIK TENAGA SURYA DIGEDUNG RUMAH SAKIT MEDIKA DRAMAGA BOGOR
Authors: Apriano Muhammad Diaz Reynaldo , Karnoto Karnoto , Sinuraya Enda Wista 
Published: July 2022

Penggunaan teknologi sel surya sebagai sumber energi listrik di Indonesia masih sangat minim padahal potensi sumber energi matahari sangat melimpah. Hal ini sangat disayangkan karena sumber energi fosil semakin lama akan habis. Tugas akhir ini bertujuan menganalisa perencanaan sistem PLTS dari segi ekonomi dengan menggunakan software Retscreen. Metode yang digunakan untuk menganalisis biaya investasi dan arus kas selama investasi, yaitu Net Present Value (NPV), Benefit–Cost Ratio (B-CR), Payback Period (PBP), dan Internal Rate of Return (IRR). Hasil perhitungan analisis ekonomi teknik berdasarkan simulasi Retscreen menunjukkan penggunaan system PLTS pada Gedung Rumah Sakit Medika Dramaga sangat layak. Hal ini dibuktikan dengan terpenuhinya seluruh parameter kelayakan investasi dengan nilai Net Present Value (NPV) sebesar Rp 4.223.379.970, lalu nilai perbandingan Benefit Cost Ratio (BCR) sebesar 2,1, dan Payback Period selama 7,938 tahun, serta Internal Rate of Return (IRR) sebesar 12,5%.
IMPLEMENTASI DEEP LEARNING MENGGUNAKAN METODE CONVOLUTIONAL NEURAL NETWORK DAN ALGORITMA YOLO DALAM SISTEM PENDETEKSI UANG KERTAS RUPIAH BAGI PENYANDANG LOW VISION
Authors: Azhar Kevin Maulana , Santoso Imam , Soetrisno Yosua Alvin Adi 
Published: July 2022

Penggunaan deep learning sudah diterapkan di berbagai sektor kehidupan karena memberikan dampak positif berupa kegiatan yang dikerjakan menjadi lebih efektif dan efisien. Implementasi deep learning dapat diterapkan untuk mendeteksi objek terntentu, salah satunya untuk mendeteksi objek uang kertas rupiah. Hal ini bertujuan untuk mempermudah penyandang low vision ketika akan menggunakan uang karena saat ini hanya menggunakan cara konvensional untuk membedakan nominal uang kertas rupiah seperti menyusun nominal ataupun membuat lipatan pada bagian uang. Pada tugas akhir ini, dirancang suatu sistem pendeteksian uang kertas rupiah pada citra bergerak menggunakan metode Convolutional Neural Network (CNN) untuk membantu penderita low vision. Algoritma untuk mendeteksi uang kertas rupiah menggunakan YOLO (You Only Look Once). Data latih yang digunakan berjumlah 1.260 gambar dengan 7.000 iterasi menghasilkan nilai mAP sebesar 97,65%. Hasil pengujian menggunakan data testing dengan jumlah data sebanyak 140 gambar bertujuan untuk mAP cross validation dan diperoleh nilai mAP sebesar 97,5%. Sementara itu, hasil pengujian dengan variasi pada berbagai kondisi uang menghasilkan tingkat mAP sebesar 88%.
A Discontinuous Galerkin Method for the Stationary Boussinesq System
Authors: Colmenares Eligio , Oyarzúa Ricardo , Piña Francisco 
Published: July 2022

Abstract
In this work we present and analyze a finite element scheme yielding discontinuous Galerkin approximations to the solutions of the stationary Boussinesq system for the simulation of non-isothermal flow phenomena. The model consists of a Navier–Stokes-type system, describing the velocity and the pressure of the fluid, coupled to an advection-diffusion equation for the temperature. The proposed numerical scheme is based on the standard interior penalty technique and an upwind approach for the nonlinear convective terms and employs the divergence-conforming Brezzi–Douglas–Marini (BDM) elements of order k for the velocity, discontinuous elements of order

k
-
1

{k-1}

for the pressure and discontinuous elements of order k for the temperature. Existence and uniqueness results are shown and stated rigorously for both the continuous problem and the discrete scheme, and optimal a priori error estimates are also derived. Numerical examples back up the theoretical expected convergence rates as well as the performance of the proposed technique.
DGS based miniaturized wideband MIMO antenna with efficient isolation for C band applications
Authors: Kumar Praveen , Sinha Rashmi , Choubey Arvind , Mahto Santosh Kumar 
Published: July 2022

Abstract
A wideband multiple-input multiple-output (MIMO) antenna for C-band applications is presented in this paper. It consists of 2

×

${\times}$

1 hexagonal motifs which serves as radiating elements. The side of each hexagonal element is 5.73 mm and the overall dimension of the proposed MIMO antenna is 30

×

${\times}$

20

×

${\times}$

1.6 mm3. The hexagonal motifs are embedded on inexpensive FR-4 lossy substrate. Thereafter, a circle with radius 1 mm is etched at the center of each hexagonal motif. Inverted L-shaped stubs are employed to attain efficient isolation between the nearby antenna elements. Four inverted L-shaped stubs are included to further enhance the isolation and eliminate the antenna size increment simultaneously, by suppressing the surface waves. Before using the decoupling approach, the MIMO antenna had an impedance bandwidth of 6.7 GHz and an isolation of −20 dB. The suggested antenna’s impedance bandwidth and isolation are 5.83 GHz and −52 dB, respectively, after using a decoupling approach (inverted L-shaped stub). The proposed MIMO antenna had a peak gain and radiation efficiency of 3–7 dBi and better than 90% (with decoupling), 2.75 to 6 dBi and greater than 60% (without decoupling). To verify the proposed design, a prototype was developed to compare the simulated parameters with the measured one. The envelope correlation coefficient (ECC) was less than 0.05, and channel capacity loss (CCL) less than 0.3 was achieved with DGS. Besides, scattering matrix such as return loss S
11 and transmission coefficient S
21 between two elements, radiation pattern, and current distribution was also favorable. Thus, the proposed MIMO antenna is advantageous to be used for C-band applications such as developing new generation air-borne and space-borne radars, as well as X-band applications.
On an alternative approach for mixed boundary value problems for the Laplace equation
Authors: Natroshvili David , Tsertsvadze Tornike 
Published: July 2022

Abstract
In this paper, we consider a special approach to the investigation of a mixed boundary value
problem (BVP) for the Laplace
equation in the case of a three-dimensional bounded domain

Ω
⊂

ℝ
3

{\Omega\subset\mathbb{R}^{3}}

,
when the boundary surface

S
=

∂
⁡
Ω

{S=\partial\Omega}

is divided into two disjoint parts

S
D

{S_{D}}

and

S
N

{S_{N}}

where the
Dirichlet—Neumann-type boundary conditions are prescribed, respectively.
Our approach is based on the potential method.
We look for a solution to the mixed boundary value problem in the form of a linear combination
of the single layer and double layer potentials with the densities supported
respectively on the Dirichlet and Neumann parts of the boundary.
This approach reduces the mixed BVP under consideration to a system of pseudodifferential equations.
The corresponding pseudodifferential matrix operator is bounded and coercive in the appropriate

L
2

{L_{2}}

-based Bessel potential
spaces. Consequently, the operator is invertible, which implies the unconditional
unique solvability of the mixed BVP in the Sobolev space

W
2
1

⁢

(
Ω
)

{W^{1}_{2}(\Omega)}

.
Using a special structure of the obtained pseudodifferential matrix operator, it is also shown that it is invertible in the

L
p

{L_{p}}

-based Besov spaces, which under appropriate boundary data implies

C
α

{C^{\alpha}}

-Hölder continuity of the solution to the mixed BVP in the closed domain

Ω
¯

{\overline{\Omega}}

with

α
=

1
2

-
ε

{\alpha=\frac{1}{2}-\varepsilon}

,
where

ε
>
0

{\varepsilon>0}

is an arbitrarily small number.
On the negative order Cesáro summability of double series with respect to block-orthonormal systems
Authors: Nadibaidze Givi 
Published: July 2022

Abstract
Some statements connected with the

(

C
,

-
1

<
α
<
0

,

-
1

<
β
<
0

)

{(C,-1<\alpha<0,-1<\beta<0)}

summability
almost everywhere of double series with respect to block-orthonormal systems are
given. In particular, using the obtained results, we can determine Weyl multipliers for
establishing negative order summability of double series with respect to

Δ

p
,
q

{\Delta_{p,q}}

-ONS.
Properties of general Fourier coefficients of differentiable functions
Authors: Tsagareishvili Vakhtang 
Published: July 2022

Abstract
The paper deals with problems of convergence of the series of moduli of the difference of general Fourier coefficients of functions from some differentiable class. It is shown that the good differentiable properties of a function do not guarantee the convergence of the series of moduli of the difference of general Fourier coefficients of this function. We explain the bounded variation of a sequence of general Fourier coefficients of a function from some functional class. We also find the conditions on the functions of an orthonormal system (ONS) under which the sequence of Fourier coefficients of any function from the differentiable class is of bounded variation. It is established that the resulting conditions are best possible. Studied here is the particular character of a subsequence of ONS.
a-Topics in Italian/Romance and the Cartography of Children’s Inventions
Authors: Belletti Adriana 
Published: July 2022

AbstractThe paper has a specific and focused aim: to unveil a possible route to DOM, the crosslinguistically widely attested phenomenon whereby direct objects are introduced by a preposition, with interpretive constraints. The prepositional marker is ‘a’ in Italian and in (the majority of) Romance. The investigation is based on both comparative data from Romance and on some relevant experimental results from the acquisition of Italian involving a-Topics. The insights that syntactic cartography may provide on the characterization of such route is the leading note of the investigation: a-marking starts out on direct objects topics, only occurring when the (animate) direct object is preposed in the left periphery of the clause; then a-marking involves clause internal direct object topics in the vP-periphery; and finally a-marking is Case related in the small ‘v’ spine; the latter, is also implicated in causatives and in constructions involving benefactive arguments. The acquisition results reviewed indicate the use of left peripheral a-Topics in children’s elicited productions in Italian, which are not attested in the target language, thus illustrating a cartographically defined space of children’s grammatical creativity.
Distress intolerance and pain catastrophizing as mediating variables in PTSD and chronic noncancer pain comorbidity
Authors: Sainero-Tirado Gloria , Ramírez-Maestre Carmen , López-Martínez Alicia E. , Esteve Rosa 
Published: July 2022

Abstract

Objectives
Several studies have demonstrated posttraumatic stress disorder (PTSD) and chronic pain comorbidity. However, there is a lack of research on the psychological variables that might explain their co-occurrence. We investigated the mediating role of distress intolerance and pain catastrophizing in this relationship.

Methods
A moderated mediation model was tested. The sample comprised 114 individuals with chronic noncancer pain (90 women and 24 men; mean age, of 60.04 years [SD=9.76]).

Results
Catastrophizing had a significant effect on PTSD. Distress intolerance mediated catastrophizing and PTSD, and pain intensity moderated this relationship.

Conclusions
New insights are provided into the psychological variables that may explain PTSD and chronic noncancer pain comorbidity.
AIFM1 is a component of the mitochondrial disulfide relay that drives complex I assembly through efficient import of NDUFS5
Authors: Salscheider Silja Lucia , Gerlich Sarah , Cabrera‐Orefice Alfredo , Peker Esra , Rothemann Robin Alexander , Murschall Lena Maria , Finger Yannik , Szczepanowska Karolina , Ahmadi Zeinab Alsadat , Guerrero‐Castillo Sergio , Erdogan Alican , Becker Mark , Ali Muna , Habich Markus , Petrungaro Carmelina , Burdina Nele , Schwarz Guenter , Klußmann Merlin , Neundorf Ines , Stroud David A , Ryan Michael T , Trifunovic Aleksandra , Brandt Ulrich , Riemer Jan 
Published: July 2022

AbstractThe mitochondrial intermembrane space protein AIFM1 has been reported to mediate the import of MIA40/CHCHD4, which forms the import receptor in the mitochondrial disulfide relay. Here, we demonstrate that AIFM1 and MIA40/CHCHD4 cooperate beyond this MIA40/CHCHD4 import. We show that AIFM1 and MIA40/CHCHD4 form a stable long‐lived complex in vitro, in different cell lines, and in tissues. In HEK293 cells lacking AIFM1, levels of MIA40 are unchanged, but the protein is present in the monomeric form. Monomeric MIA40 neither efficiently interacts with nor mediates the import of specific substrates. The import defect is especially severe for NDUFS5, a subunit of complex I of the respiratory chain. As a consequence, NDUFS5 accumulates in the cytosol and undergoes rapid proteasomal degradation. Lack of mitochondrial NDUFS5 in turn results in stalling of complex I assembly. Collectively, we demonstrate that AIFM1 serves two overlapping functions: importing MIA40/CHCHD4 and constituting an integral part of the disulfide relay that ensures efficient interaction of MIA40/CHCHD4 with specific substrates.
Pengembangan Media Podcast untuk Pembelajaran Dialog Bahasa Jawa Kelas VII di SMP Negeri 3 Semarang
Authors: Zakaria Muhammad Dwiky 
Published: July 2022

Curriculum 2013 Javanese language level basic competency dialogue/conversation prioritizes the verbal ability of students. Unggah-ungguh requires more refraction and understanding to be applied in a real conversationThis indicates that listening media such as relevant for the learning process of dialogue/conversation. This study aims to, (1) identify the needs of educators and students to podcast media for learning dialogue Javanese language grade VII junior high school level, (2) develop a prototype form of podcast media for learning dialogue Javanese language grade VII junior high school level, (3) describe the results of expert validation of podcast media for learning dialogue Javanese grade VII junior high school level. This type of research is Research and Development (R&D) with five stages. The results showed that educators and students need podcast media for learning Javanese dialogue. This research successfully developed a podcast-based learning media with the title Podcast Pak Jaka "Pacelathon Kawruh Jawa lan Kabudayan". The research products then assessed by material and media experts. The results of these assessments are used as a basis for improving media to be appropriate for use in learning.
Keywords: learning media, podcasts, pacelathon, Javanese dialogue.
Kemampuan Calon Pendidik Bahasa Jawa dalam Menentukan Teknik Penilaian Pembelajaran Bahasa Jawa di Sekolah
Authors: Alfiah Alfiah 
Published: July 2022

Educational assessment is a process of collecting and processing information to measure the achievement of student learning outcomes. An assessment process that is carried out properly can have an impact on the learning process and can be a reference in determining further policies. The accuracy of the selection of the assessment method will greatly affect the objectivity and validity of the assessment results which in the end are objective and valid information on the quality of education. On the other hand, errors in selecting and applying assessment methods also result in invalid information regarding learning and educational outcomes. One of the competencies that must be mastered by prospective educators is an understanding of the process of assessing student learning outcomes, both theoretically and practically. The purpose of writing this article is to describe the extent to which the objectives of the Java Language Learning Evaluation lecture have been achieved, particularly in learning outcomes to study and select assessment techniques based on the basic competencies measured. This research was conducted at PGRI University Semarang, with the data source being 19 students in the 4th (fourth) semester of the Regional Language and Literature Education Study Program. The data in this study is the ability of students to examine and select or determine assessment techniques based on the measured basic competencies. Data collection techniques used are test and non-test techniques. Based on the data that has been collected, it is analyzed using the interactive analysis technique of the Miles and Huberman model which consists of the stages of data reduction (data reduction), data presentation (data display), and conclusion drawing/verification. Meanwhile, to measure the achievement of the objectives of the implementation of the Javanese Language Learning Evaluation course, a goals-oriented program evaluation model was used. The results showed that most of the students had a good understanding of the application of various types of learning outcomes assessment techniques, namely 57.8% of students got a score of 100, 31.5% of students got a score of 94, 5.2% of students got 89 and 5, 2% of students got 78. Moreover, in the psychomotor or skill domain, the results showed that 41.2% of students got a score of 100, 42.1% of students got a score of 75, and 16% of students got a score of 50.
Efektifitas Penggunaan Modul Berbasis Problem Base Learning Pada Mata Kuliah Telaah Naskah
Authors: Utami Respati Retno , Andini Agni Dhea , Istantiani Meinita , Purnomo Bambang 
Published: July 2022

This study aims to determine the effectiveness of using Problem Based Learning-based modules in the text review course. This study took a sample of 4th semester students of class A class A, Regional Language and Literature Department, State University of Surabaya. The research method used is descriptive quantitative method. Data collection techniques were carried out by distributing questionnaires, observations, and giving test questions for cognitive learning outcomes. The data analysis technique was carried out with One Group Pretest-Posttest Design, then the data was tested using the normality test and T-Test (Paired Samples T-Test). The results showed that the Problem Based Learning-based module was effectively used in the manuscript review course. This is evidenced by the progress of the average score from pretest to posttest, namely from 64.1034 to 73.5517. The minimum score in the pretest is 50.00, with the maximum score being 78.00. It is different with the posttest, the minimum score achieved by students is 60.00 and the maximum score is 85.00. On the basis of these advances, the Problem Based Learning-based module is effective for improving students' understanding and skills in the text review course.
Characterization of luminescent dosimeters for sterile insect technique
Authors: ARICIA RAVANE PEREIRA DA CRUZ  , Ferreira de Amorim Lucas Mateus , Da Silva Alcilene Cristina , Khoury Asfora Viviane , Saito Monteiro de Barros Vinicius , Macedo Pinto Aline Taiane , Do Prado Oliveira Charles Nilton , Fernandes Virginio Jair , Jamil Khoury Helen 
Published: July 2022

The Sterile Insect Technique, or SIT, is an environment-friendly insect pest control method and uses gamma rays or X-rays to sterilize insects, remaining sexually competitive but cannot produce offspring. The dose control during the SIT procedures is essential for the quality of the irradiated product or material. Insects that receive too low a dose are not sufficiently sterile and those that receive too high a dose may be uncompetitive. There are few dosimetric systems used for the dose control during the irradiation procedure. The aim of this paper is to characterize the Optically Stimulated (OSL) response of Li2B4O7:Cu,Ag, synthesized by the Nuclear Energy Department of the Federal University of Pernambuco and the MTS-N dosimeters to be used for SIT dosimetry and applied in Moscamed Brazil’s pest and vector control programs. The results were evaluated using the student’s t-test. Applying the hypothesis that the results obtained with the three types of dosimeters are similar, the test showed that with 99% confidentiality the hypothesis is accepted, that is, the results of the three types of dosimeters are similar. It is possible to conclude that the OSL Li2B4O7:Cu,Ag, and the TL MTS-N can be used for dose control during the SIT irradiation procedures.
Un Vistazo al Cáncer de Próstata para un Diagnóstico Oportuno
Authors: Marín Cascante Alexa María 
Published: July 2022

El cáncer de próstata es la neoplasia más frecuente en hombres alrededor del mundo, por lo que se necesita estar atentos para poder detectarlo a tiempo.
Esto se logra realizando el tamizaje con el antígeno prostático específico, en pacientes mayores de 50 años y que presenten factores de riesgo, el cual tiene una alta sensibilidad pero una baja especificidad, por esto hay que saber cuáles son los factores pueden elevarlo y cuales pueden disminuirlo, afectando el diagnóstico oportuno que se puede dar.
Además se debe de realizar un estadiaje clínico y patológico, para que el urólogo pueda dar un tratamiento adecuado según el estadio de su enfermedad, el estado funcional del paciente y sus necesidades.