bluuebunny/crossref_metadata_2025 huggingface dataset:
Problem Merdeka Belajar dalam Konteks Pembelajaran Anak Usia Dini Di Pusat Kegiataan Gugus Satar Mese Utara
Authors: De Gomes Fransiskus
Published: December 2023

Merdeka belajar dalam pembelajaran anak usia dini merupakan merdeka bermain. Penelitian ini bertujuan mengidentifikasi problem merdeka belajar dalam konteks pembelajaran anak usia dini. Jenis penelitian ini adalah deskripsi kualitatif dengan subyek guru PAUD di Pusat Kegiatan Gugus (PKG) Satar Mese Utara yang berjumlah 10 orang. Pengumpulan data menggunakan wawancara. Data dianalisis secara kualitatif menggunakan Teknik analisis Miles dan Huberman. Hasil penelitian menunjukkan bahwa pendidik cenderung hanya menyiapkan satu jenis main berupa main sensori motor dalam satu kali pembelajaran. Selain itu, anak tidak diberi kebebasan untuk menentukan sendiri jenis main yang ingin dilakukannya. Media yang disiapkan guru lebih mengarah pada Lembar Kerja Siswa yang bukan merupakan media main anak. Bentuk dukungan yang diberikan guru ketika anak melakukan kegiatan main adalah memberikan pujian dan penghargaan seperti memberikan bintang. Guru melakukan penilaian klasikal. Temuan ini menunjukkan bahwa Lembaga PAUD di PKG Satar Mese Utara belum mengakomodasi merdeka belajar bagi anak usia dini.
Menelaah Job satisfaction dan Tantangan Profesionalisme Guru PAUD
Authors: Mutaqin Mohammad Fikri Tanzil , Nur Maulida , Rini Ratu Yustika , Sari Novita , Risna Inten , Sari Mutia
Published: December 2023

Konteks pekerjaan akan banyak berorientasi bahwa salary merupakan dukungan yang besar bagi jod satisfaction, namun demikian pendapat itu tidak sepenuhnya bisa dibenarkan. Bahwa uang bukan menjadi dukungan sepenuhnya seseorang mendapatkan kepuasan. Asumsi tersebut kemudian akan dibahas berdasarkan teoritical framework job satisfaction yang memandang pekerjaan adalah sebuah panggilan adalah sebuah pemaknaan terhadap kebermanfaatan layanan untuk orang banya, sehingga bukan cara pandang status, pendapatan, dan prestige yang di tuju. Artikel ini mengemukakan mengenai argumen-argumen  terhadap Job Satisfaction pendidik PAUD ditengah problematika kesejahteraan materil yang belum terpenuhi secara maksimal. Argumen inti pada artikel ini bahwa proses pengabdian yang dilakukan secara penuh dan tanpa pamrih oleh guru PAUD merupakan perilaku baik (kindness). Kebaikan dalam sisi psikologis yang dilakukan oleh seorang memungkinkan membangun kebermaknaan yang berharga dan mendorong kepuasan. Hak yang dimaksud dalam konteks ini tidak hanya sebatas kesejahteraan pada materil, akan tetapi hak yang didapatkan kesejahteraan psikologis yang mana salah satunya adalah job satisfaction (kesejahteraan dalam pekerjaan). Hal ini penting untuk diperhatikan, agar kemudian seorang pendidik dapat optimal dalam menjalankan kewajibannya secara profesional.
“Hapi Klak-Klik” Interactive Multimedia for Children Hadits Recogizing
Authors: Kurniawati Eny , Rohmadheny Prima Suci , Sofyan Iyan , Nuraini Febritesna
Published: December 2023

Pendidik di TK ABA Tahfidz Al-Ashr selama ini menggunakan metode talqin dalam mengenalkan dan muroja’ah hadits, belum pernah menggunakan media pembelajaran apapun, sehingga peserta didik kurang memperhatikan, mood dan konsentrasi tidak stabil. Berbagai hasil penelitian menyebutkan bahwa media pembelajaran yang menarik dan dapat meningkatkan minat belajar anak adalah multimedia interaktif. Pendidik di TK ABA Tahfidz memiliki perangkat laptop yang terinstall aplikasi powerpoint, namun belum memanfaatkannya sebagai media pembelajaran. Oleh sebab itu, penelitian ini bertujuan untuk mengembangkan dan menguji kelayakan prototype multimedia interaktif berbasis Powerpoint di TK ABA Tahfidz Al-Ashr Kabupaten Temanggung dalam mengenal dan murojaah hadits pilihan. Metode penelitian yang digunakan dalam penelitian ini yaitu Research and Development (R&D) Borg and Gall namun dibatasi pada 6 langkah prosedur pengembangan, yaitu (1) analisis potensi dan masalah, (2) pengumpulan data, (3) desain produk, (4) validasi desain, (5) revisi desain, dan (6) uji coba produk. Analisis data pada penelitian ini menggunakan teknik analisis kuantitatif dan kualitatif. Hasil penelitian ini menunjukkan bahwa prototype multimedia interaktif HaPi klak-klik berbasis PowerPoint memenuhi kriteria sangat layak berdasarkan penilaian ahli media 80,43% (sangat layak digunakan), penilaian ahli materi 88,28% (sangat layak digunakan), dan hasil uji coba terbatas dengan perolehan jawaban “ya” pada seluruh indikator dengan persentase 100% (sangat layak). Disimpulkan bahwa prototype multimedia interaktif HaPi klak-klik berbasis PowerPoint yang dikembangkan sangat layak dan efektif untuk meningkatkan minat anak dalam kegiatan mengenal dan murojaah hadits pilihan, sehingga dapat direkomendasikan untuk digunakan dalam uji coba skala lebih luas.
Penerapan Media Papan Pintar Untuk Meningkatkan Kemampuan Mengenal Huruf Di TK B Nurul Iman Banda Aceh
Authors: Nessa Rahmatun , Yeniningsih Taat Kurnita , Wahyuni Vivi , Rizka Sitti Muliya , Rahmi Rahmi
Published: December 2023

Kemampuan mengenal huruf merupakan salah satu perkembangan yang penting pada anak yang harus dikembangakn sejak dini. Kemampuan mengenal huruf yang dimaksud pada penelitian ini adalah menyebutkan simbol-simbol huruf, menyebutkan suara huruf awal dari nama kartu kata bergambar, menyebutkan kelompok gambar yang memiliki bunyi/huruf awal yang sama. Dalam penelitian ini, peneliti menggunakan metode penelitian tindakan kelas. Teknik pengumpulan data penelitian ini menggunakan teknik observasi dan unjuk kerja serta dianalisis secara deskriptif kualitatif. Berdasarkan hasil penelitian siklus I, siklus II, sampai siklus III meningkatkan kemampuan mengenal huruf melalui penerapan media papan pintar dapat dilakukan dengan cara guru memperkenalkan media papan pintar pada anak, memperaktekkan secara langsung kegiatan yang akan dilakukan, permainan dilakukan secara bergantian, guru meminta anak untuk menyebutkan simbol-simbol huruf, menyebutkan huruf awal dari kartu kata bergambar dan menyebutkan kelompok bunyi/huruf awal yang sama pada kartu kata bergambar sesuai intruksi. Kemampuan menganal huruf anak setalah dilakukan tindakan menunjukan hasil yang meningkatan yaitu dari 10 subjek anak terdapat 7 subjek berkembang sesuai harapan (BSH) atau mendapat bintang (***) dan 2 subjek berkembang sangat baik (BSB) atau mendapatkan bintang (****).
KIT PAUD Sebagai Media Pembelajaran Pada Program Pendidikan Guru Anak Usia Dini Universitas Terbuka
Authors: Aisyah Siti
Published: December 2023

Media pembelajaran yang digunakan untuk kegiatan anak usia dini perlu disesuaikan dengan sifat dan karakteristik anak usia dini. Tujuan penggunaan media pembelajaran adalah untuk memberikan kontribusi positif terhadap tujuan pembelajaran itu sendiri. KIT PGPAUD sebagai serangkaian alat bantu yang dapat digunakan untuk menunjang, memperlancar dan meningkatkan efisiensi praktik pembelajaran mahasiswa PGPAUD UT untuk terlibat dalam berbagai praktik pengembangan pembelajaran. Mulai dari benda dua dimensi hingga tiga dimensi seperti mainan dinamis atau menyusun segala macam benda untuk mengembangkan keterampilan perkembangan individu siswa yang mencakup kognitif, efektif, dan psikomotorik. Penelitian mengenai penggunaan kit ini sebagai media pembelajaran pada program pendidikan jarak jauh menunjukkan bahwa kit ini sangat efektif untuk digunakan sebagai media pembelajaran pada program PG-PAUD Universitas Terbuka dan ketika kami observasi pada dua kelas dengan perlakuan yang berbeda ( satu kelas menggunakan kit dan kelas lainnya tidak), menunjukkan perbedaan yang signifikan.
Pengaruh Loose Part Terhadap Cooperative Play Pada Kelompok B di Taman Kanak-kanak Pertiwi 1 Kantor Gubernur Padang
Authors: Sari Sri Gus Wulan , Eliza Delfi
Published: December 2023

Latar belakang penelitian ini ialah masih rendahnya kemampuan sosial anak dalam cooperative play.   Berdasarkan   pengamatan   peneliti   permasalahan   tersebut   karena   guru   jarang   menciptakan pembelajaran yang mengembangkan cooperative play. Penelitian ini bertujuan untuk mengetahui apakah ada pengaruh media loose part terhadap cooperative play pada kelompok B.  Aspek dari cooperative play adalah bertanggung jawab, membantu, menghargai pendapat, menghargai pekerjaan, berbagi peran dan interaksi.  Jenis  penelitian  ini  adalah  kuantitatif dalam  bentuk  quasy  experiment.  Teknik  pengambilan sampel adalah total sampling. Penelitian dilaksanakan selama 4 minggu. Pada kelas eksperimen terdapat kenaikan dari total skor 193 dengan rerata 12,86 dan setelah diberikan perlakuan kemudian dilakukan post- test skor meningkat menjadi 226 dengan rata-rata 15,06. Sedangkan untuk kelas kontrol skor 180 dengan rata-rata 12,00, setelah diberikan perlakuan kemudian dilakukan post-test dengan kenaikan skor menjadi 208 dengan rata-rata 13,86. Kesimpulannya terdapat pengaruh 0,34 terhadap penggunaan media loose parts terhadap coperative play anak.
Product and Business Development of Another Path Game in Myhand Studio
Authors: Santosa Daniel , Widyarto Erdhi , Sanjaya Ridwan
Published: December 2023

Game can be used for entertainment purpose and can also be used for educational purpose, in the world of game development there are many positions or roles in a team commonly referred to as a developer, the roles in a developer team are, programmer, artist, product manager, game marketing, market research etc, each position or role has its own responsibility for the success of a game that is in the development process, the market research position is one of the roles that is quite important for the success of a game product on the market, it does not mean other role do not play an important role in the success of a game product but the market research position is the main basis for making a game because this position will see directly to the market what trends are trending in the market or game genres that are in high demand by consumers, but after doing research on student related to game developing is very unfortunate very few students know about how to do market research and game product validation, here we will discuss how to do market research and product validation and a little bit about marketing game products in the market, in this journal will talk about how to make game step by step from doing market research, product validation and get to the point where developer get the data to make the game is demanded by the market, result of this research is before we need to make any decision about the game we need to make sure its not just assumption but the idea have a proof, to get the proof for ideas we can make a survei or posting things to social media and wait for responds, after some time waiting we found that our marketing strategy is working best with Facebook Ads, with small amount of money like $10 we got 9500 reach with only five days of campaign.
ANALISIS STRATEGI MARKETING DAN BRANDING PADA AKUN INSTAGRAM KOPI LOKAL KEKINIAN INDONESIA
Authors: Hutomo Arshad Denanindra , Fuady Ikhsan , Wibowo Kunto Adi
Published: December 2023

Penelitian bertujuan untuk menganalisis strategi marketing dan branding terhadap lima brand kopi kekinian di Indonesia. Populasi dan sampel pada penelitian ini adalah unggahan Instagram dari lima brand kopi kekinian lokai, yaitu Kopi Kenangan, Kopi Janji Jiwa, Point Coffee, Fore Coffee, dan Kopi Lain Hati. Teori yang digunakan pada penelitian ini adalah teori marketing viral. Teori ini digunakan berdasarkan penelitian terdahulu. Penelitian ini menggunakan metode analisis kuantitatif dengan pengambilan data menggunakan teknik simple random sampling. Penelitian ini menguji reliabilitas menggunakan dua coder, sesuai dengan coding book. Dengan adanya penelitian ini, diharapkan dapat membantu mereka yang mempunyai usaha kopi di Indonesia untuk menentukan strategi marketing yang tepat untuk usaha kopi mereka. Metode penelitian yang digunakan pada artikel ini adalah dengan uji Chi-Square dan One Way. Setelah menganalisis, ditemukan bahwa tidak terdapat perbedaan yang signifikan dalam jenis strategi marketing dan terdapat perbedaan dari engagement antara strategi marketing dan branding pada kelima brand kopi lokal.
REPRESENTASI PELAKU PERSELINGKUHAN DALAM SERIAL “LAYANGAN PUTUS”
Authors: Simatupang Yoshua
Published: December 2023

Perselingkuhan merajalela di masyarakat, sering terdengar di sekitar kita, dan menjadi isu sosial mengerikan yang perlu penanganan serius, termasuk hukum dari Pemerintah Pusat. Masyarakat juga menciptakan norma untuk menghukum pelaku perselingkuhan. Dampak negatifnya tidak hanya pada pasangan, tetapi juga lingkungan sekitar. Masyarakat mengutuk pelaku perselingkuhan, termasuk melalui media sosial, boikot, dan pengucilan sosial. Namun, media seperti film, seperti Layangan Putus, menarik penonton dengan cerita perselingkuhan. Penelitian ini menganalisis semiotika dalam film tersebut, menggambarkan nilai perselingkuhan dalam pelaku dengan baik. Layangan Putus mampu menarik penonton melalui aspek denotatif dan konotatif terkait perselingkuhan dalam filmnya. Ini menjadi daya tarik penelitian dalam konteks drama serial dan analisis semiotika.
Mechanical Properties of Rice Husk-Recycled Polypropylene Composite
Authors: Rashiddy Wong Freddawati , Al-Biruni Mohd Adnan Umar Iqqbal
Published: December 2023

The growing amount of plastic and food waste has become a serious problem around the worldwide. As a byproduct of milling rice, rice husk is an agricultural waste that is produced in bulk quantities. Rice husk has been used as filler in polymer composites in a variety of ways. However, there have only been a few reports of using rice husk as reinforcement in composites made of recycled polypropylene. The limited interfacial reaction between natural fibre and polymer is the fundamental issue in natural fibre-based composites. This prompted the development of sustainable composite manufactured from recycled polypropylene(rPP) and rice husk (RH). Thus, we investigated the intermolecular adhesion between rPP–RH composite with maleic anhydride grafted polypropylene (MAPP) as a coupling agent. Varied compositions of RH in the range of 10–40 wt% with 4 wt% of MAPP were fabricated. The rPP, RH and MAPP were blended and executed in injection moulding. The mechanical properties will be analysed through differential scanning calorimetry, rheology, tensile, flexural, impact and hardness tests. The result shows RH agglomeration and limited dispersion in the composite cause a reduction of up to 40% for tensile strength compared to neat rPP. Despite this, it demonstrates improvements in tensile modulus, flexural modulus, impact, and hardness. It is evidence of a good intermolecular between rPP matrix and RH. In conclusion, the ideal RH loading for composites occurs at a fillercontent of 40% and has acceptable mechanical properties for various composite applications.
The Densification of Hydroxyapatite from Eggshell Waste at Different Sintering Temperature
Authors: Ahmad Nawawi Natasha
Published: December 2023

The outstanding biocompatibility and bioactivity properties of hydroxyapatite (HA) as a bio-implant material have garnered significant attention in prompting its extensive study. However, due to its brittleness and lower strength, its usage as a bone implant in load-bearing regions of biomedical applications is limited. The mechanical performance of the HA bodies is decreased by transformation-induced cracking as well as uncontrolled grain development. However, sintered HA ceramics with superior mechanical characteristics may be created if the prepared powder has better powder attributes including stoichiometry, crystallinity, agglomeration, and morphology from the start. Thus, this research explored the preparation of HA from discarded eggshells as a source of calcium via the dry reaction method and the correlation between its sinterability, densification, and mechanical properties at various sintering temperatures. In this work, the calcined eggshell powder was mixed with Calcium Hydrogen Phosphate Dihydrate (CHPD) via ball milling at 400 rpm speed for 4 hours and subsequently heat treated at 800 °C. The synthesized HA powder was compacted via hydraulic press and then sintered at temperatures of 1100 ℃, 1150 ℃, 1200 ℃, and 1250 ℃. The XRD analysis of the sintered HA samples revealed that the phase stability of the HA phase remained unaffected up to 1250 °C. Similar trends ofaverage grain size, relative density, and hardness to sintering temperature were observed. HA samples sintered at 1250 °C exhibited the optimum mechanical properties with a relative density of 90.72% and a hardness of 4.34 GPa. It is believed that the grain boundary diffusion through the densification mechanism does not reach a densification level that is conducive to grain growth. Hence, the hardness still increased although the densification was relatively low. It can be concluded that HA densification significantly influences the grain coarsening and mechanical properties of the eggshell-derived HA.
DINAMIKA SIKAP DAN RESPONS MASYARAKAT MUSLIM TERHADAP PENERAPAN SHAF BERJARAK DI KABUPATEN GOWA
Authors: Muslim Asrul , Irham Muhammad
Published: December 2023

This research aims to elaborate on the Muslim community's response to implementing spaced prayer rows in mosques during the Covid-19 pandemic as well as the factors causing this resistance. This research is qualitative with a phenomenological and sociological approach. Primary data consists of regular congregation members and administrators of several mosques in the Gowa Regency. The data collection methods used were observation, interviews, and documentation. Data processing and analysis techniques are carried out through data reduction, data display, and drawing conclusions. The research results show that community resistance to the implementation of distance rows is due to two main factors, namely cognitive factors and depressive policies. Cognitive factors show that people do not understand the law properly regarding emergency conditions in the implementation of worship. Meanwhile, repressive policies are more about approaches that do not accommodate the cultural situation of society, including cognitive factors. This has an impact on the society’s disobedience to government calls and regulations as well as ulama fatwas as a form of resistance to those rules.
KONSEP ANGELOLOGI DALAM KITAB SAMARKAND
Authors: Muhammad Nasrudin Baihaqi  , Muhammad Ainul Yaqin  , Muhammad Mubarak  , Roch. Aris Hidayat
Published: December 2023

Angelology is the study of Angels and their relationship to the universe. The concept became part of the nature of Islamic thought, both among philosophers and theologians. One of the classical theological literature in the form of Codex entitled Kitāb discusses angelology. The function of Angelology is to provide an alternative knowledge in understanding the universe before modern science so that the view of the sacredness of nature is still maintained. Environmental degradation today is the result of the secularization of the cosmos caused by modern science claiming a single interpretation of nature. This paper seeks to explore aspects of Angelology in Kitāb Samarkand and contextualize it as an alternative solution to current environmental problems. The method used is qualitative with literature research using hermeneutics analysis. The result of this writing is that the Angels Kitāb Samarkand can be interpreted according to philosophical and theological views. Angelology in the book can raise awareness about the need for the sacralization of nature as an effort to prevent environmental damage caused by modern science.
Effect of Chipped Fiber Languor on the Bending Behavior of Concrete Beam Elements
Authors: Atlaoui D. , Ghouilem K.
Published: December 2023

This article studies the behavior of concrete beams reinforced with metal fibers (chips) randomly arranged in concrete, to improve ductility and bending stiffness and limit crack openings. These fibers come from machining waste from steel parts. The fibers are characterized for mechanical resistance and tearing. Three series of tests were carried out for languor respectively L = 4 cm, L = 5 cm and L = 6 cm. Bending tests (three-point bending) are carried out on prismatic specimens of dimensions [10x20x120] cm3. Compression tests are carried out on cylinders with a diameter of Ø16 cm and a height of H32 cm in order to determine the mechanical properties of the concrete used. The composition of the concrete is determined by the experimental method known as “Dreux-Gorisse”. Two fiber contents are retained for this study (W= 0.6% and W= 0.8%) and a BT control concrete (W=0%) with W: fiber contents in the concrete, of the same composition as the matrix is developed for serve as a reference. The confrontation and comparison of the different results obtained show that the fibers with languor L=6 cm confer significant ductility to the material after cracking of the concrete, better than the other languor’s (L= 4 cm and 5 cm) with numbers of undulations (spirals) n=3.5and 6. Also, the fibers used limit bending cracks and improve strength and rigidity.
Improving Energy Efficiency in a Building Using Passive Energy-Saving Measures
Authors: Stanca Simona
Published: December 2023

We are going through a time when environmental, economic and social concerns, intensely amplified by climate change, by the depletion of resources, are growing. In this context, setting targets such as reducing energy consumption in the buildings sector, energy efficiency, and the use of renewable energies are becoming a priority, both at national and international level. Improving the energy efficiency of the existing building stock is important, not only for achieving national medium-term energy efficiency targets, but also for meeting the long-term objectives of the strategy on climate change and the transition to a competitive low-carbon economy by 2050 (https://energy.ec.europa.eu/system/files/2014-11/2014_article4_ro_romania_0.pdf). Currently, the building is considered as a structure in a continuous evolution, which in time through maintenance, rehabilitation and modernization works will meet the requirements expressed by the user. The case study presented in the paper presents an analysis from the point of view of improving the energy efficiency, reducing the energy requirement in a building using passive energy-saving measures, that is, the additional thermal insulation of an element of the building envelope. The materials selected for this research are: expanded polystyrene, basaltic mineral wool and cellulose fibres.
Atmospheric Pollutant Dispersion Modeling Methods
Authors: Ionescu G.L. , Ionescu Gh.C.
Published: December 2023

The method of modeling and simulating different phenomena in various fields of scientific knowledge is an essential part of many branches of science, each of which has specific types of models. Using mathematical methods, these models try to simulate a real situation by means of numerical analysis that describes the relationships between the characteristic quantities of air pollution phenomena, such as emissions, meteorology atmospheric concentrations of pollutants, deposition, and other factors. Air and water pollution measurements give information about the environmental concentrations of pollutants scattered by different sources but can only describe the phenomena involved qualitatively, at specific locations and times, without identifying the causes that lead to pollution problems. However, models of air and groundwater pollution can provide a deterministic description of the problems of air or water quality, including an analysis of the factors and causes of the pollution phenomenon (emission sources, meteorological processes and chemical and physical changes), and some guidance for implementing measures to mitigate these phenomena of environmental pollution. Due to the ability of these methods to establish the relative importance of relevant processes, they play an important role in current day science.
Assessing Risky Behaviors Based on the Indicator Analysis of Statistics on Accidents at Work
Authors: Grodzicka Aneta
Published: December 2023

The aim of the paper was to analyze risky behaviors in the mining industry on the example of the indicator analysis of the statistics on accidents at work. Selected criteria of generic analysis (structure index – causes of accidents) and indicator analysis (intensity index – frequency indicator of accidents) were used in the research. The source of data for the analysis of accident rate were the publications of the Statistics Poland entitled “Accidents at work” in Poland for 2010-2021. The study aimed at human causes, which included the following five groups: lack or improper handling of a material factor by the employee, failure to use protective equipment by the employee, improper willful behavior of the employee, improper mental and physical state of the employee, improper behavior of the employee. For the analysis of risky behaviors, the proposition of the frequency indicator of accidents at work was used in the form of the probability indicator of accidents caused by risky behaviors per 1,000 working people. Based on the indicator analysis of risky behaviors, a comparative analysis of statistics on accidents at work in the period 2010-2021 according to the criterion of human causes was developed for Poland and mining. The research is based on the data of the Statistics Poland (GUS), but can be extended with other data, e.g. industry data according to the State Mining Authority (WUG). The results of the research can be used for a comparative analysis of the statistics on accidents at work in relation to other sectors and sections of economic activity of the NACE (PKD). The publication contains the original results of the indicator analysis of the statistics on accidents at work according to the criterion of human causes in the mining industry, and they can be addressed to persons managing of mining plants and managers of mining supervision authorities.
Exploring Exploratory Data Analysis: An Empirical Test of Run Chart Utility
Authors: Barsalou Matthew , Saraiva Pedro Manuel , Henriques Roberto
Published: December 2023

This paper explores Exploratory Data Analysis (EDA). Graphical methods are used to gain insights in EDA and these insights can be useful for forming tentative hypotheses when performing a root cause analysis (RCA). The topic of EDA is well addressed in the literature; however, empirical studies of the efficacy of EDA are lacking. We therefore aim to evaluate EDA by comparing one group of students identifying salient features in a table against a second group of students attempting to identify salient features in the same data presented in the form of a run chart, and then extracting relevant conclusions from such a comparison. Two groups of students were randomly selected to receive data; either in the form of a table or a run chart. They were then tasked with visually identifying any data points that stood out as interesting. The number of correctly identified values and the time to find the values were both evaluated by a two-sample t-test to determine if there was a statistically significant difference. The participants with a graph found the correct values that stood out in the data much quicker than those that used a table. Those using the data in the form of a table too much longer and failed to identify values that stood out. However, those with a graph also had far more false positives. Much has been written on the topic of EDA in the literature; however, an empirical evaluation of this common methodology is lacking. This paper confirms with empirical evidence the effectiveness of EDA.
Attaining decent work and economic growth — what role does taxation play?**
Authors: Erhag Thomas , Nordblom Katarina , Rendahl Pernilla
Published: December 2023

Tax policy is one way to promote sustainability, and this paper focuses on the role of taxation for SDG 8 on economic growth and decent work. Three basic values for sustainability are identified—equity and equality, environmental protection, and coherence. All these values are important for SDG 8, but they are not easily or naturally combined as there are intermittent tensions among the various values. Equal treatment is important for both efficiency and legitimacy. However, globalization calling for equal treatment across borders may be hard to implement as it requires international agreements. This, in turn, may violate the required local coherence if taxes are more aligned with other countries than with the local context. Environmental taxation will likely play an increasing role in steering economies in a more sustainable way. A crucial issue and a possible challenge is to do that in a way that does not hamper growth.
Impact of Commodity Concentration and Geographical Concentration upon Export instability in Pakistan
Authors: Nawaz Sadaf , Kamran Sajida , Saleem Ramsha , Ali Muhammad , Asad Nadia
Published: December 2023

This research study investigates the factors affecting export instability in Pakistan by using time-series data from 1981 to 2017. The determining factors of export instability in this study are commodity concentration index, geographical concentration index, food ratio, export earnings and total export quantity. The study employs Autoregressive Distributed Lag (ARDL) model to investigate the long-run (LR) relationship between export instability and its employed determinants. The empirical evidence reveals that commodity concentration, geographical concentration, food exports and export earnings are the key factors explaining export instability in Pakistan. The study finds the positive relationship between export instability and commodity concentration, while a negative association with geographical concentration. Furthermore, food exports and export earnings are also found to be negatively related to export instability. The study finds that concentration or dependence on a few exports causes export instability in Pakistan, but this problem would be overcome if Pakistan’s commodity basket for exports become diversified.
Condoland
Authors: Shaw Emory
Published: December 2023

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Pengaruh Laba Bersih Dan Arus Kas Operasi Terhadap Financial Distress
Authors: Nur Tiyas Abdul Rahim  , Sahmin Noholo  , Siti Pratiwi Husain
Published: December 2023

The purpose of this study is to obtain empirical evidence on the effect of net profit dan operating cash flow on financial distress in cosmetics dan household use sub-sector companies listed on the Indonesia Stock Exchange (IDX) for the 2017 to 2021 period. This study used purposive sampling method to select dan select 5 companies dan 25 data from cosmetics dan household use sub-sector companies. The data in this study was collected dan processed using Microsoft Excel 2019 dan SPSS 26. The results of this study show that net profit dan operating cash flow do not have a significant effect on financial distress, but simultaneously affect financial distress.
Implementasi Metode Support Vector Machine (SVM) pada Model Prediksi Rating Obat Berdasarkan Ulasan Pasien
Authors: Jayanata Wisnu , Kurniawan Isman
Published: December 2023

Pesatnya perkembangan internet dan media sosial mengakibatkan membaca ulasan sebelum membeli suatu produk, terutama produk obat menjadi hal yang lumrah. Namun, jumlah ulasan yang banyak dan tersebar mengakibatkan kesulitan dalam melakukan penilaian kualitas produk obat. Oleh karena itu, sistem yang dapat membantu pelanggan dalam menghadapi kendala ini sangat dibutuhkan. Pada pemodelan sistem, digunakan TF-IDF untuk mereduksi fitur dan Support Vector Machine sebagai metode klasifikasi. Dilakukan puka Hyperparameter Tuning untuk meningkatkan performa sistem. Pada penelitian ini didapat bahwa polynomial merupakan kernel SVM yang paling optimal untuk memprediksi rating obat berdasarkan ulasan pasien dengan akurasi mencapai 75.00% dan f-1 score sebesar 74.23%.
Pembangunan Recommender System Menggunakan Content Based Filtering pada Aplikasi Service Desk
Authors: Humairo Annisa , Herdiani Anisa , Puspitasari Shinta Yulia
Published: December 2023

Bagian Riset dan Layanan Teknologi Informasi (RiYanTI) adalah salah satu bagian dari Direktorat Pusat Teknologi Informasi (PuTI) yang bertanggungjawab dalam manajemen kualitas teknologi, manajemen konten, dan layanan pengguna yang menerima keluhan serta pengaduan terhadap kendala infrastruktur teknologi yang dialami sivitas univesitas Telkom. Banyaknya layanan yang diberikan oleh PuTI menyebabkan RiYanTI menerima banyak keluhan (tiket insiden) dan permintaan, hal ini menyebabkan antrian penanggulangan keluhan dan permintaan (tiket) menjadi panjang. Dampak dari panjangnya yang terjadi yaitu tidak terpenuhinya capaian mutu atau SLA (Service Level Agreement) hal ini menyebabkan adanya temuan ketika dilakukan audit ISO 20000-1 yangmenjadi standar atau pedoman sistem manajemen layanan IT yang ada di PuTI. Oleh itu solusi yang diberikan adalan membangun suatu recommender system yang dapat memberikan rekomendasi solusi penyelesaian permasalahan berdasarkan data tiket yang telah selesai. Metode filtering yang digunakan adalah Content Based filtering dan proses evaluasi dilakukan dengan menghitung precision, recall, dan F1-Score untuk mengamati akurasi pada hasil rekomendasi filtering serta melakukan pengujian User (User Judgment) untuk melihat apakah sistem yang dibangun telah sesuai dan mampu memberikan solusi kepada pengguna.
Investigating cyclopentane hydrate nucleation and growth using microfluidics
Authors: Dehghani Peyman , Sinquin Anne , Gland Nicolas , Tang Anh Minh , Estublier Audrey
Published: December 2023

The success of geological storage of carbon dioxide (CO2) in depleted oil and gas reservoirs relies among other aspects on the efficiency of CO2 injection, especially in the near-wellbore area where flow rates are high. CO2 hydrates pressure/temperature equilibrium conditions may be reached in this zone due to cooling associated with the Joule–Thomson effect; such CO2 hydrate formation may lead to strong injectivity loss and impair drastically the onsite well operations. In this study, cyclopentane hydrates (CPH) were employed as CO2 hydrate proxy (i.e. formation at atmospheric pressure) to mimic CO2 hydrate formation at higher pressure. In this study, the nucleation and growth processes were determined using a droplet-based in-house-microfluidic device. The generation of water droplets in cyclopentane liquid using the co-flow method was achieved. Trains of identical water droplets were stored in a serpentine channel. Each isolated droplet in this channel serves as a separate reactor. The temperature was controlled using a Peltier module to initiate hydrate nucleation at low temperatures. The isolated droplets provided the opportunity to statistically analyze the kinetic behaviors by varying key parameters, such as thermal history and water salinity. Detection of the onset of crystallization in water droplets over time and temperature allowed us to plot conversion curves based on imposed parameters. The effect of thermal history and dissociation temperature was first compared using pure water. This study marks the initial investigation into how NaCl influences CPH formation in microfluidic devices, focusing on isolated water droplets within serpentine tubes. The progression of ice nucleation, ice melting, the onset of CPH crystallization, CPH growth, and CPH dissociation are illustrated in water droplets exposed to changing temperatures. The addition of NaCl in the water during the procedure exhibited a noteworthy impact on CPH formations. With the same temperature profile, salt concentration delays nucleation (thermodynamic effect) and slows down growth. Our findings suggest that higher subcooling accelerates nucleation and growth rates. Initial lateral growth rates ranged from 4.22 μm/s to 2.14 μm/s, with a subcooling of 4.2 °C observed between 2 and 7 min for a pure water droplet.
Use of Homologous Platelet Gel to Manage Refractory Diabetic Lower Extremity Ulcers: Additional Experience at a Tertiary Hospital
Authors: Ferreira Sara , Sampaio Marco , Oliveira Margarida , Dias Francisco , Valente Eduarda , Queirós Maria , Guimarães Rosa , Pereira Joel , Neto Helena , Carvalho Rui , Antunes Marika
Published: December 2023

Background. DLEUs are a major cause of morbidity. Appropriate treatment is essential, and newer methods to achieve ulcer healing have been described, including application of PG. Objective. This study evaluated the effectiveness and safety of homologous PG in patients with chronic noninfected DLEU refractory to standard treatment as well as possible correlations between patient comorbidities and response to treatment. Materials and Methods. Data from patients with chronic refractory DLEU managed with homologous PG between January 2014 and October 2022 were evaluated (comorbidities, wound characteristics, number and time of treatment, outcome). Outcome was classified as complete response (complete ulcer healing with reepithelialization), partial response (≥50% reduction in area and/or improvement of pain), or absence of response. The chi-square test was used to compare groups, with alpha level set at less than .05. Results. A total of 81 patients (63 male, 18 female; median age, 65 years; median HbA1c, 7.6%; median ulcer area, 2.9 cm2) were proposed for PG application. A total of 62 patients had 3 or more comorbidities. Outcome was evaluated in 69 patients, with response observed in 49% (complete, 32%; partial, 17%). Worse outcomes occurred in patients with polyneuropathy (chi-square statistic: 4.183; P = .041). Conclusion. Homologous PG is a safe and possibly effective therapeutic alternative for DLEU that is unresponsive to standard therapies.
Wound Excision and Closure by Secondary Intention and Growth Factor Application in the Management of Rosacea Complicated by Giant Rhinophyma
Authors: Zhang Fan , Shi Zhehao , Cai Lei , Chen Bin , Qiu Wei , Zhang Li , Lin Xiaohua
Published: December 2023

Background. Rosacea is a significant problem, affecting 5.5% of the world population. Currently used treatment techniques such as transfer flaps and implants are insufficient to meet the needs of many patients, which suggests that alternative approaches are needed. Case Report. This report describes a case of rosacea complicated by giant rhinophyma treated with excision and closure by secondary intention and growth factor application. The patient was admitted to the Department of Dermatology at The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China, in July 2021, and underwent excision of the external nasal redundancy under general anesthesia. The postoperative wound was left open. The patient’s wounds healed completely 2 months after surgery, and there was no recurrence at 6-month follow-up. The wounds recovered well, with only slight scarring. Conclusion. The positive outcomes for this patient suggest that wound excision and closure by secondary intention and growth factor application may be beneficial for patients with rosacea complicated by giant rhinophyma.
Clinical Outcomes of Selective Plantar Fascia Release for Hallux Interphalangeal Joint Ulcers
Authors: Hussain Fahad , Kotwal Shivani , Utpat Nishka , Utpat Sandeepa , Phadtare Pranav , Lenz Robin
Published: December 2023

Background. Plantar hallux IPJ ulcers are common and challenging to manage, with many available treatments. One newer technique called SPFR has been used in the management of plantar forefoot ulcers. Objective. This case series reports the clinical results of SPFR for treatment of strictly plantar hallux IPJ ulcers. Materials and Methods. A retrospective chart review was conducted on patients that underwent SPFR procedure by a single foot and ankle surgeon from 2018 to 2023. The primary study outcome was to identify the rate and time of healing associated with SPFR for hallux IPJ ulcers. Only the initial surgery was evaluated for time of healing for the ulcer, healing rate, and complications. Subsequent surgeries were reviewed as well. Patient charts were further reviewed to determine the presence or absence of a postoperative complication. Results. A total of 17 feet from 17 patients were studied. The hallux IPJ ulcers healed in an average of 3.0 months. The average follow-up time was 26.9 months. Fifteen patients (88.2%) healed after the SPFR procedure. Five patients (29.4%) developed transfer lesions, and 7 patients (41.2%) developed postoperative complications. Conclusions. The authors believe that SPFR can be utilized in the treatment of hallux IPJ ulcers if both surgeons and patients are aware of the potential complications and limitations of this procedure. Further research is warranted to evaluate the efficacy and reproducibility of these results.
Visible Organic Thermoluminescence above Room Temperature in Small Molecule Crystals
Authors: Wang Yunsheng , Yang Jie , Wang Liwei , Li Aisen , Cao Yalei , Wang Xiaoze , Fang Manman , Chen Qiushui , Yang Huang-Hao , Li Zhen
Published: December 2023

Thermoluminescence (TL) is commonly observed in inorganic luminescent materials at elevated temperatures, with applications in radiation dosimetry, archaeology, geological dating, and defect studies. However, the understanding of TL in organic small molecules above room temperature is still limited. Here, we experimentally discovered and theoretically analyzed the unusual TL exhibited by organic scintillation crystals in air. It exhibits an onset temperature of ~300 K, reaching its maximum intensity at 348 K (heating rate of 2 K s-1). Upon 365 nm ultraviolet light excitation at room temperature, the material gradually released stored energy through phosphorescence, achieving a record-breaking organic afterglow lasting over 10 hours. The exceptional luminescence originates from excited states generated by thermally driven back electron-transfer (BET). Crucially, this work reveals that certain instances of previously reported ultralong organic afterglow are, in reality, specific cases of organic TL occurring at room temperature. These findings prompt a reevaluation of the similarities and differences between organic and inorganic phosphors. Specifically, in the absence of a comprehensive understanding of above-room-temperature thermoluminescence in organics, the information gained from this work holds significant practical implications for organic emitters and fields involving back electron transfer.
Extending the range of distances accessible by 19F electron-nuclear double resonance in proteins using high-spin Gd(III) labels
Authors: Bogdanov Alexey , Frydman Veronica , Seal Manas , Rapatskiy Leonid , Schnegg Alexander , Zhu Wenkai , Gronenborn Angela M. , Goldfarb Daniella
Published: December 2023

Fluorine electron-nuclear double resonance (19F ENDOR) has recently emerged as a valuable tool in structural biology for distance determination between F atoms and a paramagnetic center, either intrinsic or conjugated to a biomolecule via spin labeling, yielding distances beyond those accessible by double electron-electron resonance (DEER). To further extend the accessible distance range we exploit the high-spin properties of Gd(III) and focus on transitions other than the central transition (|–1/2> <-> |+1/2>), that become more populated at high magnetic fields and low temperatures. This increases the spectral resolution up to ca. 7 times, thus raising the long-distance limit of ENDOR almost twofold. We first demonstrate quantitative agreement between the experimental spectra and theoretical predictions for a model fluorine containing Gd(III) complex, whose 19F spectrum is well resolved in conventional central transition measurements. We then validate our approach on two proteins labeled with 19F and Gd(III), in which the Gd-F distance is too long to produce a well resolved 19F ENDOR doublet when measured at the central transition. By focusing on the |–5/2> <-> |–3/2> and |–7/2> <-> |–5/2> EPR transitions, a resolution enhancement of 4.5 and 7 fold was obtained, respectively. We also present data analysis strategies to handle contributions of different electron spin manifolds to the ENDOR spectrum. Our new extended 19F ENDOR approach should be applicable to Gd-F distances as large as 20Å, widening the traditional ENDOR distance window.
From Organic Fragments to Photoswitchable Catalysts: The OFF-ON Structural Repository for Transferable Kernel-based Potentials
Authors: Célerse Frédéric , Wodrich Matthew , Vela Sergi , Gallarati Simone , Fabregat Raimon , Juraskova Veronika , Corminboeuf Clémence
Published: December 2023

Structurally and conformationally diverse databases are needed to train accurate neural networks or kernel-based potentials capable of exploring the complex free en- ergy landscape of flexible functional organic molecules. Curating such databases for species beyond “simple” drug-like compounds or molecules comprised of well-defined building blocks (e.g., peptides) is challenging, as it requires thorough chemical space mapping and evaluation of both chemical and conformational diversity. Here, we intro- duce the OFF–ON (Organic Fragments From Organocatalysts that are Non-modular) database, a repository of 7,869 equilibrium and 67,457 non–equilibrium geometries of organic compounds and dimers aimed at describing conformationally flexible func- tional organic molecules, with an emphasis on photoswitchable organocatalysts. The relevance of this database is then demonstrated by training a Local Kernel Regres- sion model on a low-cost semiempirical baseline and comparing it with a PBE0-D3 reference for several known catalysts, notably the free energy surfaces of exemplary photoswitchable organocatalysts. Our results demonstrate that the OFF–ON dataset offers reliable predictions for simulating the conformational behavior of virtually any (photoswitchable) organocatalyst or organic compound comprised of H, C, N, O, F, and S atoms, thereby opening a computationally feasible route to explore complex free energy surfaces in order to rationalize and predict catalytic behavior.
Atroposelective Synthesis of Axially Chiral Thiourea and Imides by NHC-Catalyzed Desymmetrizative Amidation
Authors: Wu Yingtao , Zheng Guangfan , Sun Jiaqiong , Zhang Qian
Published: December 2023

Chiral thiourea, with a double hydrogen-bonding motif, emerged as attractive structural templates for asymmetric catalysis. Despite the significance, synthesis of enantioenriched thiourea predominantly relies on the nucleophilic addition of a chiral amine to isothiocyanate; catalytic synthesis of NH-free thiourea is highly desirable, albeit a formidable challenge. We herein describe NHCs-catalyzed desymmetrizative amidation of axially biaryl dialdehydes, providing structurally diversified axially chiral thiourea and imides. Sequential kinetic resolution improves the enantioenrichment of the desymmetrization product, dramatically expanding the range of applicable substrates. This strategy features a broad subtract scope and extremely excellent enantioselectivity. NHCs-catalyzed desymmetrizative amidation of axially prochiral biaryl dialdehydes provides modular platforms for synthesizing challenging axially chiral thiourea, imines, and derivatives.