bluuebunny/crossref_metadata_2025_split huggingface dataset:
Advancing auxetic materials: Emerging development and innovative applications
Authors: Shuaibu Abdulrasheed Suleiman , Deng Junjie , Xu Chenchen , Ade-Oke Victor Pelumi , Aliyu Abdulmajeed , Momoh Daniel 
Published: June 2024

AbstractThe development of auxetic materials, known for their unique negative Poisson’s ratio, is transforming various industries by introducing new mechanical properties and functionalities. These materials offer groundbreaking applications and improved performance in engineering and other areas. Initially found in natural materials, auxetic behaviors have been developed in synthetic materials. Auxetic materials boast improved mechanical properties, including synclastic behavior, variable permeability, indentation resistance, enhanced fracture toughness, superior energy absorption, and fatigue properties. This article provides a thorough review of auxetic materials, including classification and applications. It emphasizes the importance of cellular structure topology in enhancing mechanical performance and explores various auxetic configurations, including re-entrant honeycombs, chiral models, and rotating polygonal units in both two-dimensional and three-dimensional forms. The unique deformation mechanisms of these materials enable innovative applications in energy absorption, medicine, protective gear, textiles, sensors, actuating devices, and more. It also addresses challenges in research, such as practical implementation and durability assessment of auxetic structures, while showcasing their considerable promise for significant advancements in different engineering disciplines.
Terceras Jornadas de Investigación 2019 de la Facultad de Medicina de la Universidad Nacional de Colombia. Resúmenes
Authors: Universidad Nacional de Colombia Facultad de Medicina 
Published: June 2024

En este documento se presentan algunos resultados de varias investigaciones realizadas por la comunidad académica de la Facultad de Medicina de la Universidad Nacional de Colombia dentro del marco de socialización académica retomado por la Vicedecanatura de Investigación y Extensión de dicha facultad, que para para 2019 se denominó “Terceras Jornadas de Investigación”. Debe resaltarse, que espacios como estos permiten fortalecer la investigación formativa, la visibilidad científica, la evaluación académica y el dialogo académico entre los miembros de la facultad y de la universidad.
Sitosterolemia caused by mutations in the ABCG8 gene. First case report in Colombia
Authors: Saavedra-López Harold Felipe , Ospina-Lagos Sandra Yaneth , Blanco-Bustos Maria Paula 
Published: June 2024

Introduction: Sitosterolemia is an autosomal recessive disease caused by mutations in the ABCG5 or ABCG8 genes. It is characterized by reduced excretion of plant sterols and cholesterol, leading to the development of hypercholesterolemia, xanthomas, and premature atherosclerosis. The present article reports the first case of this disease in Colombia.
Case presentation: A 5-year-old child, son of non-consanguineous parents, who was under active treatment with ezetimibe and cholestyramine was taken (April 2021) to the human genetics service of a healthcare institution in Bogotá, Colombia, for assessment due to multiple xanthomas and elevated LDL cholesterol levels. Familial hypercholesterolemia had been ruled out. A next-generation gene sequencing (NGS) analysis detected a mutation in the ABCG8 gene, so he was diagnosed with sitosterolemia. Pharmacological treatment (ezetimibe and cholestyramine) was continued and dietary modifications were started. In the last follow-up visit of the patient to the human genetics service (March 2022), an improvement in the lipid profile was observed. In addition, 9 months later (December 2022), a decrease in the size of the xanthomas was reported in an evaluation by the pediatric endocrinology service.
Conclusion: Sitosterolemia is a rare disease that should be considered in pediatric patients with multiple xanthomas and in whom familial hypercholesterolemia has been ruled out. Performing NGS of the genes involved is important to make a timely diagnosis and initiate appropriate treatment, which will improve the prognosis and quality of life of these patients.
INFLUÊNCIA DA NATAÇÃO NOS DESVIOS POSTURAIS
Authors: Cerqueira de Oliveira Almeida Emilly 
Published: June 2024

O Egito foi um dos primeiros relatos que fazem menção à natação surge em, no ano 5.000 a.C. e os desvios posturais fazem parte do cotidiano de grande parte da população adulta mundial e vem sendo investigada se existe a presença deles em indivíduos em fase de crescimento e como a natação pode auxiliar na reversão desses casos. Objetivo: O presente trabalho tem como objetivo diferenciar os desvios posturais: cifose, lordose e escoliose e qual a influência da natação sobre a postura corporal dos indivíduos. Métodos: Foram acompanhados os alunos da academia Space Park em Feira de Santana, utilizando a observação, por meio dela foi perguntadas informações ao professor supervisor acerca dos alunos com desvios posturais, as avaliações funcionais feitas para a realização da prática da natação, dados referentes à idade, sexo, peso, altura. Resultados: As atividades desempenhadas durante o estágio foram à respiração, onde ensina o aluno a técnica de como respirar ao nadar; nado crawl e nado costas, ensinando o modo correto das braçadas, pernadas, propulsão e respiração. Conclusão: Alguns estudiosos comprovam que a natação é o ambiente mais indicado para a reversão de desvios posturais. A atuação das propriedades físicas provoca a diminuição do impacto na coluna vertebral, ocorrendo o relaxamento muscular.
Examining 22 Years of Ambient Seismic Wavefield at Mount St. Helens
Authors: Köpfli Manuela , Denolle Marine A. , Thelen Weston A. , Makus Peter , Malone Stephen D. 
Published: June 2024

Abstract
An increase in seismic activity precedes most volcanic eruptions. Whereas event-based forecasting approaches have been successful, some eruptions remain unanticipated, resulting in casualties and damage. Our study leverages the recent advancements in ambient field seismology. We explore features extracted from continuous ambient fields using traditional methods, for example, peak ground velocity, peak ground acceleration, root mean square, root median square, real-time seismic amplitude measurement, and novel methods (displacement seismic amplitude ratio and spectral width). In addition, we explore unsupervised learning of higher order wavelet features using scattering networks. We find that combining all the methods was necessary to disentangle the effects of seismic sources from structural changes at Mount St. Helens. Although the ambient wavefield-based approach does not yield additional or more significant precursory signals than event-based methods at Mount St. Helens, our study demonstrates that the ambient wavefield provides supplementary information, mainly about structural changes and complements traditional methods. The ambient seismic wavefield offers additional insights into long-lasting processes. We find enhanced wave attenuation correlating with geochemical measurements. We interpret this as ongoing structural changes, such as dome growth or the evolution of the volcanic conduit system. On annual and decadal timescales, we interpret seasonal seismic attenuation in the shallow subsurface as groundwater fluctuations, corroborated by observations at the nearby Spirit Lake level. This multimethod approach at Mount St. Helens sheds light on a volcanic system’s underlying dynamics and structure.
Release of nickel and chromium ions from stainless steel brackets as a result of long-term exposure to commonly used toothpaste
Authors: Kriswandini Indah Listiana , Bagus Agastya Perkasa Ida 
Published: June 2024

Background: Brackets in fixed orthodontic appliances are mostly made from metal or stainless steel. Maintaining oral hygiene by brushing the teeth with toothpaste during orthodontic treatment is important. One of the ingredients in toothpaste, sodium fluoride, can cause degradation of the stainless-steel surface, which has the potential to corrode or release metal elements. Purpose: the purpose of this study is to describe the Nickel and chromium ion release of stainless-steel brackets against toothpaste use in orthodontic treatment by means of narrative review. Review: The main corrosion products of stainless-steel brackets are nickel and chromium. Toothpaste detergents contain sodium lauryl sulfate, which can cause the release of nickel ions due to the presence of sodium ions, which can trigger redox reactions. In addition, the fluoride content will combine with hydrogen to produce hydrofluoric acid, which can damage the oxide layer on orthodontic wires, resulting in the release of metal ions such as nickel and chromium. The effects of the release of these ions can be carcinogenic, cause hypersensitivity reactions, and cause cytotoxicity. Corrosion causes the dissolution of filler metal, resulting in weakened bracket material and increased friction, leading to delayed tooth movement. Conclusion: Toothpaste can affect the release of nickel and chromium ions in stainless steel brackets in the presence of sodium and fluoride.
The Role of Socioeconomic and Female Indicators on Infant Mortality in West Nusa Tenggara: A Panel VECM Analysis
Authors: Arini Rechtiana Putri , Mumtazah Soraya Afkarina , Siahaan Rio Manuppak , Kartiasih Fitri 
Published: June 2024

West Nusa Tenggara Province has an infant mortality rate that surpasses the national average. Additionally, it is also characterized as having a high Gini ratio and gender inequality index. Therefore, this study aims to examine the differences in classification among different regions, the long-term and short-term impact, and the causal relationship between socio-economic factors and female indicators in relation to infant mortality. This study used the co-integration method of the panel VECM and applied the natural breaks (Jenks) classification method based on panel data from 10 regencies/cities in West Nusa Tenggara Province between 2012 and 2022. This study discovered two instances of co-integration where the life expectancy of women was found to have a negative impact, while the percentage of women working full-time was found to have a positive impact on the long-term infant mortality rate. Infant mortality rates in the short term showed a significant relationship with the cointegration coefficient, mean years of schooling of women, life expectancy of women, and percentage of women working full-time. There is a direct causal relationship between the mean years of schooling of women and the percentage of people living in poverty and the infant mortality rate. This study is expected to serve as a basis to guide the Government of West Nusa Tenggara Province in promoting equity in education, equal job opportunities, adequate healthcare facilities, and increased investment to decrease infant mortality.
STRATEGI PUBLIC RELATIONS UNTUK MENINGKATKAN DAYA TARIK WISATA, BUDAYA DAN PENDIDIKAN DI MUSEUM KERIS SURAKARTA
Authors: Ekawati Jihan Ramadhani , Sulistyaningrum I C. Dyah , Subarno Anton 
Published: June 2024

<p>Tujuan dari penelitian ini adalah untuk mengetahui implementasi strategi <em>public relations</em> yang dilaksanakan oleh humas Museum Keris Surakarta. Jenis penelitian ini adalah deskriptif kualitatif dengan pendekatan studi kasus. Penelitian dilaksanakan di Museum Keris Surakarta dan UPT Museum Surakarta. Data diperoleh dari informan, dokumen dan peristiwa dengan <em>purposive sampling</em>. Teknik pengumpulan data dengan observasi, wawancara dan dokumentasi. Validitas data diperoleh dengan triangulasi sumber dan triangulasi metode. Teknik analisis data menggunakan analisis data model interaktif.</p><p>Hasil penelitian menunjukkan bahwa implementasi strategi <em>public relations </em>di Museum Keris meliputi: 1) Pencarian Masalah, 2) Perencanaan Strategi, 3) Tindakan dan Komunikasi dengan menggunakan a) Strategi Operasional, b) Pendekatan Persuasif dan Edukatif, c) Pendekatan Kerja Sama, 4) Evaluasi Pelaksanaan Strategi.</p><p> </p>
PENGARUH TATA RUANG KANTOR DAN KOMUNIKASI KANTOR TERHADAP SEMANGAT KERJA PEGAWAI DISPERTAN PP KABUPATEN KARANGANYAR
Authors: Elviana Elva , Sawiji Hery , Winarno Winarno 
Published: June 2024

<p><em>The purpose of this study isto determine: (1) find out whether there is an effect of office layout on the spirit of the employees in Dinas Pertanian, Pangan dan Perikanan Kabupaten Karanganyar, (2) find out whether there is an effect of office communication on the spirit of the employees in Dinas Pertanian, Pangan dan Perikanan Kabupaten Karanganyar, and (3) determine whether there is an influence between office layout and office communication on the spirit of the employees in Dinas Pertanian, Pangan dan Perikanan Kabupaten Karanganyar.</em></p><p><em>This research is a quantitative research using survey method. The population in this study were employees of the Dinas Pertanian, Pangan dan Perikanan Kabupaten Karanganyar. Sources of data in this study came from respondents and literature study. The sampling technique was done by simple random sampling. Data was collected through interviews, questionnaires and observations. The validity test technique uses Product Moment Correlation, while the reliability test uses Cronbach's alpha. The data analysis technique used multiple regression analysis techniques with the help of SPSS version 25.</em></p><em>The results showed that 1) There is a positive and significant effect of office layout on the spirit of the employees. This is evidenced by the t<sub>count</sub> of 2,619 &gt; t<sub>table</sub> of 1,672, thus H<sub>o</sub> is rejected and H<sub>1</sub> is accepted. 2) There is a positive and significant effect of office communication on the spirit of the employees. This is evidenced by the t<sub>count</sub> of 5,088 &gt; t<sub>table</sub> of 1,672, thus H<sub>o</sub> is rejected and H<sub>2</sub> is accepted. And 3) There is a positive and significant effect of office layout and office communication simultaneously on the spirit of the employees. This is evidenced by F<sub>count</sub>(33.053) &gt; F<sub>table</sub>(3.159) then H<sub>o</sub> is rejected and H<sub>3</sub> is accepted. Thus, the overall results of this analysis support the proposed hypothesis.</em>
Pengaruh motivasi, komunikasi, dan pengawasan terhadap disiplin kerja karyawan
Authors: Hapsari Afiffah Rika , Murtini Wiedy , Ninghardjanti Patni 
Published: June 2024

<p dir="ltr"><span><strong>Abstrak</strong>: </span>disiplin. (2) apakah terdapat pengaruh komunikasi terhadap disiplin kerja karyawan. (3) ada tidaknya pengaruh pengawasan terhadap disiplin kerja pegawai. (4) apakah terdapat pengaruh motivasi, komunikasi, dan supervisi terhadap disiplin kerja pegawai. Penelitian ini menggunakan pendekatan kuantitatif dengan metode korelasional. Populasi penelitian ini adalah karyawan PT. Pelabuhan Pelabuhan Indonesia III (Persero) Cabang Tanjung Emas Semarang. Sampel diambil dengan menggunakan teknik simple random sampling sebanyak 104 responden. Metode pengumpulan data menggunakan metode kuesioner. Hasil penelitian ini adalah sebagai berikut: (1) terdapat pengaruh positif dan signifikan motivasi terhadap disiplin kerja dengan nilai thitung (3,286) &gt; ttabel (1,983); (2) terdapat pengaruh positif dan signifikan komunikasi terhadap disiplin kerja dengan nilai thitung (3,893) &gt; ttabel (1,983); (3) terdapat pengaruh positif dan signifikan supervisi terhadap disiplin kerja dengan nilai thitung (3,908) &gt; ttabel (1,983); dan (4) Terdapat pengaruh positif dan signifikan motivasi, komunikasi, dan supervisi secara bersama-sama atau simultan terhadap disiplin kerja dengan nilai Fhitung (58,035) &gt; Ftabel (2,70).</p><p><span><span><br /></span></span></p><p dir="ltr"><span>Kata Kunci: koneksi; semangat; supervisi; kepatuhan kerja</span></p><div><span><br /></span><p dir="ltr"><em><strong>Abstract</strong>: This study aims to determine (1) whether motivation has an influence on employee work discipline. (2) whether there is an influence of communication on employee work discipline. (3) whether or not there is an influence of supervision on employee work discipline. (4) whether there is an influence of motivation, communication, and supervision on employee work discipline. This study uses a quantitative approach with the correlation method. The population of this study was made up of employees of PT. Port Pelabuhan Indonesia III (Persero) Tanjung Emas Semarang Branch. Samples were taken using a simple random sampling technique from as many as 104 respondents. Methods of data collection using the questionnaire method. The results of this study are as follows: (1) there is a positive and significant effect of motivation on work discipline with the value of tcount (3,286) &gt; ttable (1,983); (2) there is a positive and significant effect of communication on work discipline with the value of tcount (3,893) &gt; ttable (1,983); (3) there is a positive and significant effect of supervision on work discipline with the value of tcount (3,908) &gt; ttable (1,983); and (4) There is a positive and significant effect of motivation, communication, and supervision together or simultaneously on work discipline with the value of Fcount (58.035) &gt; Ftable (2,70).</em></p><span><span><span><br /></span></span></span><p dir="ltr"><em>Keywords: connection; motivation; supervision; work obedience</em></p><div><span><br /></span></div></div>
Pengaruh dimensi kualitas pelayanan publik pada bidang administrasi kependudukan terhadap kepuasan Masyarakat Jebres Kota Surakarta
Authors: Devitasari Intan , Ninghardjanti Patni , Winarno Winarno 
Published: June 2024

<p><em>The purpose of this study </em><em>is</em><em> to determine</em><em> the effect of several dimensions as follows:</em><em> (1) tangible</em><em>,</em><em>(2) responsiveness</em><em>, </em><em>(3) reliability</em><em>, </em><em>(4) assurance</em><em>, </em><em>(5) empathy</em><em>, </em><em>(6) </em><em>all</em><em> dimension</em><em>s of service quality</em><em> on the Jebres Surakarta Community Satisfaction.</em><em> </em><em>This research</em><em> </em><em>is categorized as th</em><em>e quantitative research method. The population in this study is the Jebres community, who have performed services</em><em>. </em><em>The sample in this study was 80 people. The research sampling technique used the Cluster Area Sampling</em><em>. </em><em>This research collected the data using questionnaires and used multiple linear regression techniques </em><em>towards</em><em> </em><em>the IBM SPSS 26.0 program to analyze the data.</em><em> </em><em>The results showed that there was a positive and significant effect of: (1) the tangible evidenced by a significance value of 0.000 &lt;0.05 and </em> <em>3.792&gt; </em><em>a</em> <em>1.992; (2) the responsiveness 0.000&lt;0.05 and </em> <em> 5.338&gt;</em> <em>1.992; (3) the reliability of 0.018&lt;0.05 and </em> <em> 2.426&gt; a </em> <em> 1.992; (4) the guarantee v</em><em>a</em><em>lue of 0.000 &lt;0.05 and</em> <em> of 5.170 &gt; </em> <em> 1.992; (5) the empathy of 0.000 &lt;0.05 and </em> <em> of 7.017&gt; a</em> <em>1.992. (6) Simultaneously</em><em> </em><em>of</em><em> dimension</em><em> public service quality</em><em> value of </em>0,000&lt;0,05 and 95.900&gt; 2,34. The results of this study show the double meaning of service quality to community satisfaction of 86.6%.<em></em></p>
Pengaruh persepsi promosi dan citra perusahaan terhadap loyalitas pelanggan aplikasi shopee
Authors: Putri Dias Murtika , Murtini Wiedy , Ninghardjanti Patni 
Published: June 2024

<p><strong>Abstrak:</strong> Penelitian ini bertujuan untuk mengetahui pengaruh (1) promosi terhadap loyalitas pelanggan aplikasi Shopee, (2) citra perusahaan terhadap loyalitas pelanggan aplikasi Shopee (3) promosi dan citra perusahaan secara bersama-sama terhadap loyalitas pelanggan aplikasi Shopee. Penelitian ini merupakan penelitian kuantitatif dengan metode korelasional. Jumlah populasi sebanyak 339 mahasiswa PAP dan 100 mahasiswa diambil sebagai sampel. Sampel pada penelitian ini diambil menggunakan metode purposive sampling. Data penelitian dikumpulkan dengan kuesioner penelitian menggunakan skala likert 1-4 dan dianalisis dengan bantuan aplikasi SPSS versi 26. Hasil penelitian menunjukkan bahwa (1) terdapat pengaruh positif dan signifikan variabel promosi terhadap loyalitas mahasiswa pada aplikasi Shopee, dibuktikan dengan nilai signifikan sebesar 0,000 &lt; 0,05 dan nilai thitung 4,318 &gt; ttabel 1,984 (2) terdapat pengaruh positif dan signifikan variabel citra perusahaan terhadap loyalitas mahasiswa pada aplikasi Shopee, dibuktikan dengan nilai signifikan sebesar 0,037 &lt; 0,05 dan nilai thitung 2,113 &gt; ttabel 1,984 (3) terdapat pengaruh positif dan signifikan variabel promosi dan citra perusahaan secara bersama-sama terhadap loyalitas mahasiswa pada aplikasi Shopee, dibuktikan dengan nilai signifikan sebesar 0,000 &lt; 0,05 dan nilai Fhitung 37,364 &gt; Ftabel 3,09.</p><p>Keywords : citra perusahaan; beriklan; dedikasi pelanggan; kuantitatif</p><p> </p><p><em><strong>Abstract:</strong> This study aims to determine the effect of (1) promotion on customer loyalty in the Shopee application (2) corporate image on customer loyalty in the Shopee application (3) promotion and corporate image simultaneously on customer loyalty in the Shopee application. The total population is 339 students of PAP and 100 students are taken as samples. This research is quantitative research with a correlational method. The sample was taken using the purposive sampling method. The research data was collected using a research questionnaire with a Likert scale of 1-4 and analyzed using the SPSS version 26 application. The results showed that (1) there is a positive and significant effect of the promotion on customer loyalty of students in the Shopee application, as evidenced by a significant value of 0,000 &lt; 0,05 and tcount value of 4,318 &gt;tcount 1,984 (2) there is a positive and significant effect of corporate image on customer loyalty of students in Shopee application, as evidence by the significant value of 0,037 &lt; 0,05 and tcount value of 2,113 &gt;tcount 1,984 (3) there is a positive and significant effect of promotion and corporate image simultaneously on customer loyalty of students in Shopee application, as evidence by the significant value of 0,000 &lt; 0,05 and Fvalue 37,364 &gt; Ftable 3,09.</em></p><p><em>Keywords: advertise; corporate image; customer dedication; quantitative</em></p>
Unveiling Key Factors for Enhanced Employee Performance in Indonesia
Authors: Yoshanda Agung Andana , Sulistiyowati Wiwik 
Published: June 2024

This study investigates the impact of employee competence and the work environment on performance at PT. Karya Mitra Teknik Forklift Sidoarjo. Through observations, interviews, and surveys with 30 employees over six months, the study applies Partial Least Squares Structural Equation Modeling (PLS-SEM) and Importance Performance Analysis (IPA). Results show that both competence and the work environment significantly influence performance, with timely task completion and a supportive work environment identified as key areas for improvement. Enhancing employee discipline and optimizing workplace conditions are recommended to boost productivity and employee satisfaction in heavy equipment service companies. Further research could explore additional factors like compensation to further enhance organizational outcomes. Highlight: Investigate competence and environment effect on employee performance. Timely task completion and supportive work environment enhance performance. Improve employee discipline and optimize workplace conditions for effectiveness. Keywoard: Competence, Work Environment, Performance, Heavy Equipment Services, Employee Satisfaction