bluuebunny/crossref_metadata_2025 huggingface dataset:
Prognostic value of manual versus automatic methods for assessing extents of resection and residual tumor volume in glioblastoma
Authors: Majewska Paulina , Holden Helland Ragnhild , Ferles Alexandros , Pedersen André , Kommers Ivar , Ardon Hilko , Barkhof Frederik , Bello Lorenzo , Berger Mitchel S. , Dunås Tora , Conti Nibali Marco , Furtner Julia , Hervey-Jumper Shawn L. , Idema Albert J. S. , Kiesel Barbara , Nandoe Tewarie Rishi , Mandonnet Emmanuel , Müller Domenique M. J. , Robe Pierre A. , Rossi Marco , Sciortino Tommaso , Aalders Tom , Wagemakers Michiel , Widhalm Georg , Zwinderman Aeilko H. , De Witt Hamer Philip C. , Eijgelaar Roelant S. , Sagberg Lisa Millgård , Jakola Asgeir Store , Thurin Erik , Reinertsen Ingerid , Bouget David , Solheim Ole
Published: January 2025

OBJECTIVE

The extent of resection (EOR) and postoperative residual tumor (RT) volume are prognostic factors in glioblastoma. Calculations of EOR and RT rely on accurate tumor segmentations. Raidionics is an open-access software that enables automatic segmentation of preoperative and early postoperative glioblastoma using pretrained deep learning models. The aim of this study was to compare the prognostic value of manually versus automatically assessed volumetric measurements in glioblastoma patients.

METHODS

Adult patients who underwent resection of histopathologically confirmed glioblastoma were included from 12 different hospitals in Europe and North America. Patient characteristics and survival data were collected as part of local tumor registries or were retrieved from patient medical records. The prognostic value of manually and automatically assessed EOR and RT volume was compared using Cox regression models.

RESULTS

Both manually and automatically assessed RT volumes were a negative prognostic factor for overall survival (manual vs automatic: HR 1.051, 95% CI 1.034–1.067 [p < 0.001] vs HR 1.019, 95% CI 1.007–1.030 [p = 0.001]). Both manual and automatic EOR models showed that patients with gross-total resection have significantly longer overall survival compared with those with subtotal resection (manual vs automatic: HR 1.580, 95% CI 1.291–1.932 [p < 0.001] vs HR 1.395, 95% CI 1.160–1.679 [p < 0.001]), but no significant prognostic difference of gross-total compared with near-total (90%–99%) resection was found. According to the Akaike information criterion and the Bayesian information criterion, all multivariable Cox regression models showed similar goodness-of-fit.

CONCLUSIONS

Automatically and manually measured EOR and RT volumes have comparable prognostic properties. Automatic segmentation with Raidionics can be used in future studies in patients with glioblastoma.
Google Trends and Bitcoin volatility forecast
Authors: Teterin M.A. , Peresetsky A.A.
Published: January 2025

Since the introduction of Bitcoin in 2008, the size of the cryptocurrency market is becoming increasingly important for investors. Thus, the forecast of cryptocurrency price volatility is of particular interest to portfolio investors, as they are interested in accurately estimating the standard deviation of their portfolios to calculate the Value-at- Risk (VaR) as a risk measure for more optimal portfolio management. The HAR-RV model introduced by F. Corsi (in 2009) became more effective than the traditional GARCH type models in forecasting in the volatility of fi nancial assets. In the last decade, cryptocurrencies started to dominate both the social media and the fi nancial press. At the same time, some academic papers use social media data to enhance the cryptocurrency volatility forecasting models. In our paper, we study how the use of Google Trends data could improve the precision of one-day-ahead of Bitcoin price volatility models forecasts. We use three different measures of the forecast precision. All models are estimated in rolling windows in order to control for possible structural breaks. Also, we estimate the optimal length of rolling windows to provide the best forecast precision on the historical Bitcoin price data from January 1, 2018 to December 31, 2022. We verify that the predictive power of the chosen model statistically differs from other models via MCS-test.

С появлением в 2008 г. биткоина размер рынка криптовалют вырос и стал важным для инвесторов. Таким образом, сегодня прогноз волатильности цены криптовалюты является предметом особого интереса для портфельных инвесторов, поскольку они заинтересованы в точной оценке стандартного отклонения их инвестиционных портфелей для вычисления сумм под риском (VaR) как меры риска для оптимального управления портфелем. HAR-RV-модель, предложенная F. Corsi (в 2009 г.), показала бóльшую эффективность при прогнозировании волатильности финансовых активов по сравнению с более традиционными моделями из семейства GARCH. В последнее десятилетие сообщения и статьи о криптовалютах стали все чаще появляться как в социальных медиа, так и в финансовой прессе. В то же время в некоторых академических исследованиях авторы используют данные социальных медиа для улучшения моделей прогноза волатильности криптовалют. В данной работе мы проводим анализ того, как использование данных Google Trends могут повысить точность моделей для однодневного прогноза волатильности цены биткоина. В исследовании мы используем три различные меры точности прогнозов. Все модели оцениваются в скользящих окнах для контроля на наличие структурных сдвигов в данных. Также мы подбираем оптимальный размер скользящего окна для получения наилучшего прогноза на исторических данных цены биткоина с 01.01.2018 по 31.12.2022. С помощью MCS-теста мы показываем, что прогнозная сила выбираемой модели статистически отличается от других.
О принятии решений в вероятностных моделях с неопределенностью
Authors: Ширяев А.Н.
Published: January 2025

В основе современной теории вероятностей лежит понятие «вероятностное пространство», которое позволяет определить такие понятия, как «случайная величина» и ее «математическое ожидание». Они являются объектами, в терминах которых, в частности, определяется качество выносимых решений, даются определения оптимальных решающих функций и функций полезности. В вероятностных моделях систем с неопределенностью (вероятностно- неопределенные системы) приходится иметь дело уже не с одним вероятностным пространством, а с их семейством. В этом случае привлекают такие понятия, как «сублинейные ожидания», «g-ожидания», «обратные стохастические дифференциальные уравнения», «емкости» и «интегралы Шоке» и др. Классические теоремы типа закона больших чисел приобретают новую форму. Настоящая статья призвана привлечь внимание читателей журнала к проблематике, связанной с некоторыми аспектами вероятностных и вероятностно- неопределенных моделей и сравнительно новыми методами их исследования.

In the modern theory of probability the basic notion is «probabilistic space» on which the notions of random variables and their expectations are defi ned. These elements give, in particular, a possibility to determine the quality of decisions, to defi ne decision functions and their quality. At the same time in probability models with uncertainty we need to consider instead of one probability space a family of such spaces. For this case of uncertainty we have notions of sublinear and nonlinear expectations, g-expectations, backward stochastic differential equations, notions of Choquet capacity and integrals. The classical law of large number has a new form under assumption of uncertainty. The present paper has an overview character and is aimed to attract the readers’ attention to new probabilistic aspects of modeling under uncertainty and to corresponding tools of investigation. The paper is an extended version of the author’s report at the seminar on mathematical economics of V. I. Danilov and V. M. Polterovich at Moscow School of Economics, MSU, given on 30 January 2024
Влияние сокращения промежуточного импорта из Китая на российскую промышленность
Authors: Кузнецов Д.Е.
Published: January 2025

В статье изучается влияние шока предложения импорта промежуточных товаров на динамику обрабатывающей промышленности. Хронология распространения COVID-19 позволяет рассматривать I квартал 2020 г. как период, в течение которого распространение вируса напрямую влияло на экономическую активность в Китае, но не в большинстве других стран. Поэтому сокращение импорта из Китая в этот период можно рассматривать как натуральный эксперимент, дающий экзогенную вариацию предложения импорта промежуточных товаров. Подверженность отраслей российской промышленности сокращению импорта из Китая рассчитывается на основе коэффициентов прямых затрат импорта, учитывает долю Китая в поставках промежуточных товаров и глубину шока предложения импорта. Эконометрические оценки показывают, что характер связи динамики промышленного экспорта с динамикой поставок промежуточных товаров из Китая изменился в I квартале 2020 г., что согласуется с предположением о том, что значение коэффициента в периоды вне 2020 г. в общем случае не может быть использовано для оценки влияния шока предложения промежуточных товаров на отрасли. Негативное воздействие шока на валовую добавленную стоимость в обрабатывающей промышленности в I квартале 2020 г. оценивается в 1,9–3,1%, а на промышленный экспорт — в 6,5–7,0%.

The study assesses the impact of the intermediate imports supply shock on the dynamics of Russian manufacture. The chronology of COVID-19 pandemic suggests that the 1st quarter of 2020 was the period during which the spread of the virus directly affected economic activity only in China, but not in most other countries. Therefore, the decline in imports from China during this period can be seen as a natural experiment, which provides exogenous variation of intermediate imports supply. The exposure of Russian industries to Chinese intermediate import shock is calculated based on input–output coeffi cients, as well as China’s share of intermediate goods imports and the magnitude of supply shock. Econometric estimates suggest that the relationship between the dynamics of manufacture and the imports of intermediate goods from China changed signifi cantly in the 1st quarter of 2020. The result consistent with the assumption that the value of the coeffi cient for periods before 2020 may be endogenous, therefore it cannot be used to assess the consequences of the intermediate goods supply shock. Based on the estimated coeffi cients, the negative effect of supply shock on gross manufacturing value added in the 1st quarter of 2020 is estimated as 1.9–3.1% and 6.5–7.0% for manufacture exports.
«Зоопарк» эмпирических результатов: количественные исследования и прирост знания об обществе
Authors: Либман А.М.
Published: January 2025

Последние десятилетия стали периодом «эмпирического поворота» в экономической науке и во многом в других общественных науках — растущей роли количественных эмпирических исследований и снижения влияния больших исследовательских программ и парадигм. Однако что означает рост числа эмпирических исследований для общего процесса накопления знания об обществе? В принципе генерализируемость выводов часто рассматривается как важное преимущество количественных методов. В статье показано, что стандартные исследования «эмпирического поворота» лишь в небольшой степени вступают в диалог друг с другом, опираются друг на друга или пытаются опровергнуть друг друга. Ссылки на другие статьи часто имеют символический характер. Вместо стройной систематической картины мира формируется своего рода «зоопарк» бесчисленных исследований, отдельных «кейсов», слабо связанных друг с другом. Такое развитие, однако, не обязательно следует воспринимать как признак кризиса науки.

The last decade became a period of an empirical turn in economics and in many other social sciences, i. e., increasing role of quantitative empirical research and declining importance of big paradigms and research programs. What does, however, the increase of the number of empirical studies mean for the overall accumulation of knowledge about societies? Fundamentally, generalizable results are frequently seen as an important advantage of the quantitative methods. However, our article shows that standard studies within the framework of the empirical turn hardly communicate with each other, build upon each other or try to refute each other. References to other papers play a more or less symbolic role. Instead of a systematic worldview a sort of a ‘zoo’ of numerous individual case studies emerges, being hardly connected to each other. This development, however, should not necessarily be perceived as evidence of a crisis in social sciences.
Является ли Российское государство патерналистским? (К вопросу о концепции А. Я. Рубинштейна)
Authors: Оболонский А.В.
Published: January 2025

Статья посвящена обсуждению части вопросов, поднимаемых в фундаментальной междисциплинарной работе А. Я. Рубинштейна. Отмечаются многие достоинства статьи, ее глубокий, стимулирующий к размышлениям и дальнейшему развитию идей характер. Это предполагает дискуссию по ряду вопросов. Поднимаемые автором вопросы о сущности и типах государства, о его роли в жизни человека относятся к числу «вечнозеленых». Их историческую эволюцию я обозначил очень кратким обзором. А основная часть статьи посвящена дискуссии относительно интерпретации автором взглядов фон Хайека, а также различиям в понимании автором статьи и мной концепта патерналистского государства. Представляется, что Рубинштейн недооценивает либеральную основу социальных взглядов Хайека и в то же время неоправданно расширительно трактует само понятие патерналистского государства. В результате этого оно, по сути, распространяется на всякое авторитарное правление, что представляется не вполне корректным. Это я и пытаюсь аргументированно показать на исторических и современных примерах. Отдельный интерес представляют социологическая часть статьи и авторское описание провалов современного российского государства, дающее ценный материал для дальнейших аналитических рассуждений и исследований.

The article is devoted to discussion around a part of questions, raised in the fundamental interdisciplinary work by A.Ya. Rubinshtein. Multiple qualities of his article, a deep character of it, stimulating to further considerations and development of its ideas, are emphasized. It assumes, at the same time, discussion on some aspects of it. Problems of the essence and typology of states, its place in the life of individual are everlasting and “evergreen”. I reminded the historical evolution of them in a very short review. The major part of my arguments was addressed to analysis of the author’s interpretation of von Hayek’s views and to critical comparison of his and my understandings of paternalistic state. It seems that Rubinshtein underestimates the liberal basis of Hayek’s social vision. He interprets paternalistic state unreasonably too broadly. As a result, this notion becomes almost similar to any authoritarian rule. That seems to me incorrect, and I am trying to prove it on historical and contemporary examples. Sociological part of the article is of special interest, including the author’s description of states’ failures attributed to contemporary Russia. It presents a valuable ground for the following analytical considerations and research.
Государство: хищническая природа против гражданского общества
Authors: Заостровцев А.П.
Published: January 2025

В статье представлен взгляд на хищническую природу государства как на его универсальное свой ство. Она противостоит как рынкам, так и гражданскому обществу. Однако если в определение государства включить рынки и гражданское общество, то это будет идеологическим оправданием поглощения их государством. Государство рассматривается как стремящееся к постоянному разрастанию за счет вытеснения независимых от него институтов и превращению, в конечном счете, во всеохватывающий институт. Кратко анализируются опросы российских экспертов в отношении политического участия, гражданских прав и т. д. Делается вывод о том, что на их основе можно утверждать наличие промежуточного состояния российского государства, находящегося между неопатримониализмом и неосултанизмом. Возрождение же гражданского общества через развитие социальных сетей не видится в качестве реальной перспективы по причине преимуществ госу- дарства как центрального актора цифрового мира и носителя права на легитимное насилие. Ключевые слова: хищническое государство, гражданское общество, властнособственническое общество, неопатримониальное государство, неосултанистское государство, социальные сети.

The article presents the predatory nature of the state as its universal property. It opposes both markets and civil society. However, if markets and civil society are included in the definition of the state, this will be an ideological justification for their absorption by the state. The government is viewed as striving for constant expansion by reducing civil institutions and ultimately turning the latter into state institution. The surveys of russian experts on political participation, civil rights etc. are briefly analyzed. It is concluded that one can assert that the Russian state is in an intermediate position, located between neopatrimonialism and neosultanism. The revival of civil society through the development of social networks is not seen as a real prospect due to the advantages of state as central actor in the digital world and the bearer of right to legitimate violence.
Membangun Semangat Melanjutkan Pendidikan Melalui Seminar Motivasi Belajar
Authors: Hakim Rafi Wildzan , Ernawati  , Afiah Dafa , Maulida Zulfa , Al Imani Muhammad Nasim Adil , Izaanatulhaqq Ziyaan , Karim Arifin A. Abd.
Published: January 2025

The community service activity in the form of a Learning Motivation Seminar was carried out by KKN students from Nahdlatul Ulama Indonesia University at SD Negeri Gadog 02, Sukajadi Village, involving 86 fourth-grade students. The program aimed to enhance students' motivation to pursue higher education. The low interest in continuing education was the main issue, prompting the KKN MD-V-03 group to organize this seminar. The methods used included initial observations, presentations, interactive discussions, as well as games and simulations to increase student participation. As a result, the students showed increased motivation, marked by their active engagement and courage in presenting their aspirations. This seminar not only provided short-term benefits but also motivated students to continue their education to higher levels. In conclusion, this program successfully boosted students' learning enthusiasm and raised awareness of the importance of education.
Travel products of the tour operator Join Up! under state of war
Authors: Andrusiak Natalia , Anipko Natalia
Published: January 2025

In the context of a full-scale war, the Ukrainian tourism industry has faced the most difficult challenge since Ukraine's independence. The existence of the tourism industry in a time of war is contradictory. However, the Ukrainian tourism business was able to adapt to such terrible challenges and continued to exist. An example of one of the best tourism companies that has continued to operate, providing jobs, offering new tourist destinations, increasing flight programmes, etc. and helping the Armed Forces of Ukraine since the first days of the war is the Join Up tour operator. It is a multidisciplinary Ukrainian tour operator that has been present on the travel market since 2010. Join Up continues to operate in the most difficult conditions of the war and is a leader in various indicators. Today, the tour operator successfully operates in the markets of not only Ukraine, but also Latvia, Lithuania, Estonia, Moldova, Kazakhstan, Romania, and Poland. Therefore, our study focuses on the activities of the Join Up tour operator during the full-scale war and its current offers for Ukrainian citizens.

Overall Join Up!'s ability to change and improve its marketing strategies has not only helped it to stay in the tourism market, but has also laid the groundwork for potential growth in the face of difficulties and for becoming a leader among competitors.

The experience of the Join Up tour operator during the war is worthy of research, as it is unique and useful for the Ukrainian tourism industry as a whole.

Keywords: tour operator, offers, package tours, flight programme, airport.
Pengaruh Komunikasi Interpersonal Dalam Pemahaman Terkait Pemilahan Sampah di SDN 09 Sungai Cubadak
Authors: Adi Putri Silvia , Soni Redha Pratiwi , Adzkia Legabina , Setiana Iffa
Published: January 2025

Abstrak: Kegiatan Pengabdian Masyarakat (PKM) ini dilaksanakan di SDN 09 Sungai Cubadak,Baso , Kabupaten Agam   pada Tanggal 12 September – 13 September 2024. Kegiatan ini mengiktsertakan Sejumlah Siswa di SDN 09 Sungai Cubadak. Kegiatan ini bertujuan untuk meningkatkan kompetensi Siswa terkait komunikasi interpersonal dan pemilahan sampah, Sosialisasi tentang penerapan pemilahan sampah di SDN 09 Sungai Cubadak,Baso , Kabupaten Agam.   Kegiatan PKM ini telah disesuaikan dengan fokus ilmu dan kajian dari program studi D-III Administrasi Rumah Sakit dan Dosen yang melakukan pengabdian masyarkat ini telah sesuai dengan bidang ilmu serta Visi dan MIsi Program Studi. Pelaksanaan PKM Bertujuan untuk Meningkatkan kompetensi Siswa terkait komunikasi interpersonal dan pemilahan sampah.
Training Penjernihan Air Sumur Gali Masyarakat di Kampung Warbo Arso 7, Distrik Arso Barat, Keerom
Authors: Lantang Daniel , Menufandu Herlina , Rampa Ester , Sinaga Herlando , Daawia Daawia
Published: January 2025

Water is the main composition in the body, the amount of water content contained in the body is about 50-80%, depending on age, most of the human body consists of fluids, so the body really needs adequate fluid intake. This fluid intake is obtained from drinking water and food. Based on a survey conducted, the physical appearance of community dug well water in Warbo village Arso 7, West Arso district, is generally cloudy, smelly in colour and quite high in lime. This service aims to provide training to the Warbo village community so that they can use a dug well water purification tool and can use clean water. The method used in this service is the direct partner participation method, which explains the sequence of how the filter is connected to the daft machine or pump. The results of the service activities carried out on May 2024 were attended by 12 people. After a week of installing the filter, the people who became the sample or who were selected to receive filter assistance felt happy because the well water they used was no longer coloured, smelled, and cloudy.
Building Proficiency in GAI: Key Competencies for Success
Authors: Grimberg Einat , Mason Claire
Published: January 2025

The rapid proliferation and adoption of generative Artificial Intelligence (GAI) underscores its ease of use. However, there has been limited research exploring what constitutes proficient use of GAI and what competencies underpin it. In this study, we adopt a grounded approach and semi-structured interviews to explore how twenty-five expert GAI users (all knowledge workers) define, exemplify, and explain GAI proficiency. A purposive sampling approach was adopted with the aim of capturing input from experts from a range of occupations and sectors towards answering three questions. First, can we identify the characteristics that differentiate proficient (more effective) use of GAI? Second, what competencies are seen to underlie proficient use of GAI? Third, what benefits are associated with more proficient use of GAI tools? Analysis of the descriptions shared by the experts revealed four aspects of GAI proficiency: effective prompting, informed and responsible choices, diversity of use, complexity of use, and frequency of use. In addition, the following themes emerged from the analysis of the competencies supporting more proficient use of GAI: GAI literacy, domain expertise, communication skills, metacognition skills, curiosity and inquisitiveness, flexibility and adaptability, diligence, and (in some contexts) information technology skills. More proficient use of GAI was seen to have benefits ranging from improved productivity, higher quality output, and more original work. By offering a comprehensive framework for effective use of GAI, grounded in real-world experience, this study guides further research and substantiates the continuing relevance of human skills, knowledge, and mindsets when working with GAI tools.
Pengaruh Kualitas Produk dan Promosi terhadap Keputusan Pembelian Sepeda Motor Nmax di Dealer Yamaha Jayamandiri Gemasejati Bojong Gede Kabupaten Bogor
Authors: Muzakir Abdul Wahid , Apriliani Siti
Published: January 2025

Tujuan penelitian ini untuk mengetahui Pengaruh Kualitas Produk dan Promosi Terhadap Keputusan Pembelian Sepeda Motor Nmax Di Dealer Yamaha Jayamandiri Gemasejati Bojong Gede Kabupaten Bogor secara parsial dan simultan. Metode penelitian yang digunakan ialah metode kuantitatif dengan pendekatan assositaif. Sumber data populasi pada penelitian ini sebanyak 230, teknik sampling dalam penelitian ini menggunakan rumus slovin dengan margin error 5%. Jumlah sampel yang diperoleh berjumlah 146 orang dan pengumpulan data dilakukan menggunakan kuesioner dengan mengacu pada skala likert. Teknik analisis data menggunakan uji instrumen data, uji asumsi klasik, uji kuantitatif dan uji hipotesis dengan SPSS 27. Uji hipotesis parsial kualitas produk diperoleh nilai Thitung ≥ Ttabel (thitung 12,175 ≥ ttabel 1,656) atau nilai Sig (0,000 ≤ 0,05) maka H0 ditolak dan H1 diterima, yang artinya variabel kualitas produk secara parsial berpengaruh signifikan terhadap keputusan pembelian. Uji hipotesis parsial promosi diperoleh nilai Thitung ≥ Ttabel (thitung 9,065 ≥ ttabel 1,656) atau nilai Sig (0,000 ≤ 0,05) maka H0 ditolak dan H2 diterima, yang artinya variabel promosi secara parsial berpengaruh signifikan terhadap keputusan pembelian. Kualitas Produk (X1) dan Promosi (X2) secara simultan berpengaruh positif dan signifikan terhadap kepuasan pelanggan (Y) yang dibuktikan dari hasil persamaan regresi linier berganda Y= 30,957 + 0,227 (X1) + 0,031 (X2) + ie  dan nilai Fhitung ≥ Ftabel (Fhitung 129,337 > Ftabiel 1,656) atau nilai sig (0,000b < 0,05) maka H0 ditiolak dan H3 ditierima, nilai koefisien determinasi sebesar 64,4% sedangkan sisanya 35,6% dipengaruhi oleh faktor lain.
Pengaruh Current Ratio dan Debt to Equity Ratio terhadap Return on Equity pada PT Telekomunikasi Indonesia (Persero) Tbk Periode 2012 - 2021
Authors: Ariyanti Fitri , Astutik Endang Puji
Published: January 2025

Penelitian ini dilakukan bertujuan untuk menguji pengaruh Current Ratio (CR), Debt to Equity Ratio (DER), terhadap Return On Equity (ROE) pada perusahaan PT Telekomunikasi Indonesia (Persero) Tbk. Penelitian ini menggunakan metode deskriptif kuantitatif dengan sampel sebanyak 10 tahun yaitu berupa laporan keuangan tahunan periode 2012-2021. Analisis data yang digunakan yaitu analisis regresi linier berganda, uji hipotesis menggunakan uji t, uji f, dan uji determinasi. Hasil dalam penelitian ini menunjukkan bahwa Current Ratio (CR) berpengaruh positif dan signifikan secara parsial terhadap Return On Equity (ROE) dengan nilai thitung  2,994 > 2,365 ttabel dan memiliki nilai signifikansi 0,017 < 0,05 dan Debt to Equity Ratio (DER) berpengaruh negatif dan signifikan secara parsial terhadap Return On Equity (ROE) dengan nilai thitung -3,931 > 2,365 ttabel dan memiliki nilai signifikansi 0,004 < 0,05. Secara simultan Current Ratio (CR) dan Debt to Equity Ratio (DER) berpengaruh positif dan signifikan terhadap Return On Equity (ROE) dengan nilai signifikansi 0,017 < 0,05 dengan nilai fhitung 7,626 > ftabel 4,74. Pada PT Telekomunikasi Indonesia (Persero) Tbk. Koefisien Determinasi (R Square) menunjukkan bahwa diketahui nilai koefisien determinasi variabel Current Ratio dan Debt to Equity Ratio terhadap Return On Equity sebesar 68,5%. Sedangkan sisanya yaitu sebesar 31,5% dipengaruhi oleh variabel lain.
Analisis Pengaruh Disiplin Kerja pada Kinerja Karyawan PT. Akulaku Silvrr Jakarta
Authors: Fayanti Oktavia Dwi , Irwansyah Irwansyah
Published: January 2025

Tujuan penitian ini adalah melakukan analisis pengaruh disiplin kerja pada kinerja karyawan PT Akulaku Silvrr Jakarta. Bahwa ternyata kesadaran karyawan akan pentingnya disiplin kerja masih rendah, begitu pula dengan ketegasan atasan dalam mengidentifikasi pelanggaran disiplin. Selama ini karyawan yang tidak patuh hanya diberi teguran lisan ini tidak menakuti karyawan dan berharap kembali perilakunya menjadi disiplin. Atas dasar fenomena tersebut tentu diduga akan berpengaruh dengan kinerja yang dihasilkan oleh karyawan, dan juga berpengaruh terhadap karyawan yang memiliki prestasi yang bagus, serta berkontribusi kepada perusahaan. Atas fenomena tersebut diduga menurunnya kinerja karyawan.
Pengaruh Kualitas Pelayanan O-Ranger Antaran terhadap Kepuasan Pelanggan pada PT. Pos Indonesia Rangkasbitung 42300
Authors: Anggraeni Angga Dewi , Nuraeni Beti Siti
Published: January 2025

Keberhasilan suatu perusahaan dapat dilihat dari kemampuan perusahaan dalam memberikan pelayanan kepada pelanggan, pelayanan yang berkualitas dapat memberikan kepuasan kepada pelanggan dan perusahaan dapatmeningkatkan nilai pada perusahaan. Hal tersebut dapat menjadi pengaruh kualitas pelayanan oranger antaran terhadap kepuasan pelanggan pada PT. Pos Indonesia. Metode penelitian ini menggunakan metode deskriptif kuantitatif dan menggunakan objek penelitian Kualitas Pelayanan dan Kepuasan Pelanggan. Dalam penelitian ini data yang digunakan bersumber data primer dan data sekunder. Populasi dari penelitian ini merupakan data dari pelanggan yang datang ke PT. Pos Indonesia Kota Rangkasbitung. Pengambilan sampel menggunakan sampling Insedintial dan pengumpulan datanya menggunakan kuisioner. Serta teknik analisis data yang digunakan adalah uji validitas, reliabilitas dan analisis linear sederhana dengan menggunakan program SPSS serta melakukan uji hipotesis dengan melakukan uji T. Populasi yang digunakan dalam penelitian ini sebanyak 6,130, dan sampel yang digunakan sebanyak 99 pelanggan. Dalam penelitian ini kualitas pelayanan memiliki pengaruh sebesar 67,7% terhadap kepuasan pelanggan, sedangkan 32,3% lainnya dipengaruhi variabel lain
Pengaruh Disiplin Kerja dan Budaya Organisasi terhadap Kinerja Karyawan pada PT. Godong Ijo Asri Depok Jawa Barat
Authors: Oktavianti Nopi , Sari Yeni Liana , Nariah Nariah
Published: January 2025

Tujuan penelitian ini adalah untuk mengetahui apakah terdapat pengaruh positif dan signifikan antara Disiplin Kerja dan Budaya Organisasi secara simultan terhadap Kinerja Karyawan pada Pt Godong Ijo Asri Depok. Metode yang digunakan adalah metode survey dengan pendekatan kuantitatif. Populasi yang digunakan adalah 50 karyawan/orang, dan teknik pengumpulan sampel dalam penelitian ini adalah sampel jenuh dengan sampel sebanyak 50 responden. Hasil penelitian ini adalah Disiplin Kerja (X1) berpengaruh positif dan signifikan terhadap Kinerja Karyawan (Y) yang ditunjukan oleh hasil uji hipotensis secara simultan dimana nilai thitung > ttabel atau 13,287 > 2,012, sehingga H0 ditolak dan Ha diterima artinya terdapat pengaruh yang positif dan signifikan antara Disiplin Kerja terhadap Kinerja Karyawan. Budaya Organisasi (X2) berpengaruh positif dan signifikan terhadap Kinerja Karyawan (Y) yang ditunjukan oleh hasil hipotensis secara simultan dimana thitung > ttabel atau 12,490 > 2,012, sehingga H0 ditolak dan Ha diterima artinya terdapat pengaruh yang positif dan signifikan antara Budaya Organisasi terhadap Kineja Karyawan. Disiplin Kerja (X1) dan Budaya Organisasi (X2) berpengaruh secara simultan terhadap Kinerja Karyawan (Y) yang ditunjukan oleh hasil uji hipotensis dimana Fhitung > Ftabel atau 119,434 > 3,191, sehingga H0 ditolak dan Ha diterima. Artinya terdapat pengaruh positif san signifikan secra simultan antara Disiplin Kerja dan Budaya Organisasi Terhadap Kinerja Karyawan.
Bahaya Penggunaan Sepeda Listrik Pada Anak-anak di Bawah Umur di Panti Asuhan Asyiyah Humairah Balayudha
Authors: Roni Kgs Ahmad , Hidayat Kemas muhammad Wahyu , Afif Muhammad Faris , Puteri Delita M , Sofiah Sofiah Sofiah
Published: January 2025

Sepeda listrik menjadi salah satu inovasi dalam dunia transportasi yang menggabungkan antara sepeda konvensional dengan motor listrik sebagai tenaga tambahan saat berkendara. Dalam teknologi ini menawarkan solusi mobilitas yang ramah lingkungan, hemat energi, dan efisien, sehingga dapat berkontribusi pada pengurangan emisi karbon serta ketergantungan terhadap bahan bakar fosil. Sepeda listrik memberikan fleksibilitas penggunaan dengan tiga mode berkendara utama: pengayuhan manual, penggerak listrik, atau kombinasi keduanya, sehingga dapat menyesuaikan kebutuhan pengguna. Dalam beberapa tahun terakhir, permintaan dan penggunaan sepeda listrik meningkat seiring dengan meningkatnya kesadaran masyarakat terhadap pentingnya mobilitas berkelanjutan. Hal ini tidak hanya mendorong pertumbuhan pasar sepeda listrik, tetapi juga memperkuat peran teknologi hijau dalam menghadapi tantangan global terkait perubahan iklim dan polusi udara. Pengabdian ini mengeksplorasi manfaat, potensi, serta tantangan dalam pengembangan sepeda listrik di tengah masyarakat, termasuk dukungan infrastruktur. Hasil pengabdian ini menunjukkan bahwa dengan penerapan yang tepat, sepeda listrik dapat menjadi solusi efektif untuk mengurangi emisi dan transportasi yang lebih efisien.
Evolução global da qualidade dos serviços de abastecimento de água e esgotamento sanitário no Brasil entre 2010 e 2018
Authors: Carvalho Débora da Costa
Published: January 2025

Os serviços de água e esgotamento sanitário fazem parte do saneamento básico de qualquer localidade e estão diretamente ligados a questões de sáude pública. O Brasil tem a prestação de tais serviços como um desafio, já que apresenta resultados menores que outros países com seu nível econômico. A respeito da importância de tais serviços e da avaliação do desempenho em cada área da prestação e nas regiões, esta pesquisa objetivou avaliar o d esempenho dos principais indicadores de qualidade dos serviços relacionados. Para tanto, foram observados indicadores presentes no Sistema Nacional de Informações sobre Saneamento – SNIS, relativos aos anos de 2010, 2012, 2016 e 2018, para todos os prestadores que apresentaram informações nesses anos. Entre os principais resultados encontrados, destacam-se o melhor desempenho concentrado nos prestadores da região sudeste, apresentando maior qualidade e menores preços. A região norte, ao contrário, tem os serviços referidos como um desafio a ser enfrentado no sentido de desenvolvimento social de sua população. Em uma visão nacional, observa-se que houve melhoria na prestação, mesmo que não tão significativa quanto necessário, de acordo com os indicadores observados.
Liability of Business Actors for Environmental Pollution Related to Disposal of Waste Produced by Cattle Farms in Indonesia
Authors: Tanaya Velliana , Irawan Geofani Violeta Cendra
Published: January 2025

The fulfilment of human needs cannot be separated from the contribution of the cattle farming sector. In addition to the benefits of cattle farming, this business also has adverse impacts on the environment in terms of environmental pollution and global warming due to the solid, liquid, and gas waste. However, it can be minimized through the proper processing and disposal of cattle farm waste in accordance with applicable regulations in Indonesia, including Law number 32 of 2009 on Environmental Protection and Management (UUPPLH) and other regulations. This research aims to study the implementation of UUPPLH and the liability of cattle farming business actors who do not heed the regulations, leading to environmental pollution. This research used a normative research method with secondary data in the form of literature study and supported by primary data obtained from interview. The results of this research showed that the applicable regulations were in accordance with Gustav Radbruch's theory of legal objectives. Business actors were responsible for the pollution due to improper processing of cattle farm waste. The liabilities consisted of administrative, civil, and criminal liabilities. For civil liability, it was based on the Unlawful Acts (PMH) and the strict liability was determined in article 88 of UUPPLH. Therefore, business actors need to have self-awareness to carry out waste processing in accordance with regulations. Meanwhile, the government should take firm action against cattle farms that are intentionally or negligent in waste treatment and they need to conduct regular supervision in order to create a clean and healthy environment.
Pengaruh Strategi Pembelajaran Bernyanyi Terhadap Perkembangan Kemampuan Membaca Anak Usia 5-6 Tahun
Authors: Cahyani Nurul , Dorlina Simatupang Nurhenti , Reza Muhammad , Widayati Sri
Published: January 2025

Kemampuan membaca adalah salah satu komponen pendidikan yang paling penting dan berfungsi sebagai bakat dasar yang harus dimiliki setiap individu. Pembelajaran justru lebih mudah diterima oleh anak pada masa golden age.  Mulai membaca sejak usia dini merupakan bakat yang perlu dimiliki setiap anak karena memungkinkan mereka untuk mengikuti pelajaran di sekolah dan membuka dunia pengetahuan serta kesempatan untuk meraih keberhasilannya. Penelitian ini mengerucut dan fokus pada pengaruh strategi pembelajaran bernyanyi dengan tahapan terhadap perkembangan kemampuan bahasa khusunya membaca. Desain yang digunakan dalam penelitian ini adalah desain penelitian quasi-exsperimental atau eksperimen semu dengan nonequivalent control group design menggunakan uji Mann Whitney U Test menunjukkan hasil nilai nilai U < U tabel, maka Ha diterima dan Ho ditolak. Artinya pada penelitian ini terdapat perbedaan secara signifikan antara kelompok eksperimen dan kelompok kontrol setelah perlakuan. Dalam hal ini dapat diartikan bahwa strategi pembelajaran bernyanyi memiliki pengaruh terhadap kemampuan membaca permulaan pada anak. Hipotesis diterima.
Media Teka-teki Ular Tangga untuk Meningkatkan Kognitif Anak usia 4-5 Tahun
Authors: Rahmi Aulia , Hibana Hibana
Published: January 2025

Anak usia dini merupakan tahap penting dalam setiap perkembanganya untuk kehidupan selanjutnya. Anak-anak memperoleh pengalaman dalam mengenali dunia di sekitarnya sambil bermain. Melalui stimulasi yang ada di sekitar mereka, perkembangan kognitif anak akan berkembang dengan pesat. Dalam mengembangkan kemampuan kognitif anak usia 4-5 tahun, bisa menggunakan Alat Permainan Edukatif (APE) seperti teka-teki ular tangga. Tujuan dari penelitian ini adalah untuk meningkatkan kemampuan kognitif anak usia 4-5 tahun. Penelitian ini menggunakan penelitian kualitatif dan teknik pengumpulan data menggunakan wawancara, observasi dan dokumentasi. Penelitian ini menyimpulkan bahwa Media Teka-teki ular tangga dapat membantu guru dalam menyampaikan materi pembelajaran untuk meningkatkan kemampuan kognitif anak usia dini. Proses stimulasi kognitif berlangsung lebih alami dan membuat belajar lebih menyenangkan bagi anak-anak saat mereka tanpa sadar menyebutkan angka yang telah mereka lewati atau saat mereka melempar dadu.
Kesadaran Lingkungan pada Anak Usia Dini
Authors: Utara Adiis Retna , Hapidin Hapidin , Dwi Utami Ade
Published: January 2025

Anak yang memiliki kesadaran lingkungan memahami bahwa dirinya adalah bagian dari ekologi yang hidup bersama-sama dengan makhluk hidup lainnya. Membangun kesadaran lingkungan perlu dilakukan sedini mungkin. Namun satuan-satuan PAUD di Indonesia masih belum sepenuhnya memfasilitasi urgensi akan pembentukan kesadaran lingkungan pada anak. Penelitian ini bertujuan untuk mengkaji mengenai konsep serta upaya-upaya yang dapat dilakukan untuk membangun kesadaran lingkungan pada anak usia dini. Penelitian ini menerapkan metode studi literatur terhadap penelitian-penelitian terdahulu yang relevan. Hasil penelitian menunjukan bahwa urgensi membangun kesadaran lingkungan bukan hanya menjadi fokus dalam lingkup PAUD di Indonesia, namun sudah sejak lama menjadi fokus dari pendidikan dunia. Kesadaran lingkungan merupakan konstruksi dari tiga dimensi yaitu pengetahuan, sikap dan perilaku. Adapun upaya-upaya yang dapat diterapkan oleh satuan-satuan PAUD untuk membangun kesadaran lingkungan pada anak, yaitu melalui bermain playworld, pendekatan STEM, kegiatan green school, hingga penggunaan media pembelajaran dalam bentuk buku bacaan, seperti misalnya buku komik.
Pemahaman Physical Literasi Guru TK dalam Aktivitas Motorik Anak
Authors: Juniarti Yenti , Puspa Ardini Pupung , Ramadan Gilang , Puji Lestari Dwi
Published: January 2025

Abstract: This study aims to understand preschool teachers' understanding of physical literacy in implementing children's motor activities. Physical literacy is an important concept in the physical development of young children, encompassing basic physical skills and the ability to move confidently and competently. The research employs a qualitative approach with a case study method. Data were collected through in-depth interviews with several preschool teachers and observations of motor activities conducted in the classroom. The findings show that most preschool teachers have a basic understanding of physical literacy, although the level of understanding and its implementation in children's motor activities varies. Some teachers have successfully designed and carried out activities that optimally support children's motor development, while others require further knowledge enhancement and training regarding this concept. Factors influencing this understanding include educational background, teaching experience, and school support. The study concludes that enhancing the understanding of physical literacy among preschool teachers is crucial for creating an environment that fully supports children's physical development. It is hoped that the findings will contribute to the development of early childhood education curricula, particularly in relation to motor learning.
Keywords: Understanding, Physical Literacy, Preschool Teachers, Motor Activities, Early Childhood Education, Qualitative Research.
FEMALE PRESERVICE TEACHERS’ ACHIEVEMENT GOALS AND PERFORMANCE ANXIETIES DURING IMPLEMENTING STEM EDUCATION PROJECTS FOR PRESCHOOL CHILDREN
Authors: Sung Ming-Jiun , Sung An-Fan
Published: January 2025

Female preschool educators usually perceive themselves as less proficient in STEM, leading to heightened performance anxiety (PA), which in turn affects their achievement goals (AG). So, this study aims to examine the impact of PA on AG among female preservice preschool educators implementing STEM education projects. This research hypothesized that PA has both immediate and sustained effects on AG over multiple periods. Additionally, we posited that initial levels of PA and AG are interrelated and influence changes in each other over time. To test these hypotheses, data is collected from sixty female preservice preschool educators participating in a STEM education community for preschool children. Participants completed the Assessment Scale of STEM Education Learning Motivation for Preschool Teachers and the Assessment Scale of STEM Activity Performance for Preschool Teachers. The result of the path analysis model revealed satisfactory indices of goodness-of-fit, but the effects of PA on AG varied across different periods. The latent growth curve models also demonstrated a good fit, showing significant negative covariances between the intercepts and slopes of PA and AG. Specifically, PA exhibited a higher intercept but a lower slope compared to AG. The correlations between the intercepts and slopes of PA and AG were significant, though no significant connections were found between the intercepts and slopes of the two constructs. These findings suggest that while PA initially has a strong influence on AG, its impact diminishes over time, highlighting the complex and evolving relationship between PA and AG in preservice preschool educators engaged in STEM education projects.
Keywords: achievement goal, female preservice teacher, latent growth curve model, performance anxiety, preschool children, STEM,
INITIATING E-ACTIVITIES: APPLYING THE SITUATED LEARNING IN A CLASS WITH TRANSITION
Authors: Tsai Tsung-Liang , Liao Faith
Published: January 2025

With the rapid integration of digital platforms in education, understanding the shift from traditional to electronic modes of teaching and learning has become crucial for adapting to contemporary educational demands. This study explored the transition from traditional classroom teaching to e-teaching and e-learning, termed e-activities, for enhancing the quality of education in Taiwan, focusing on identifying emerging learning phenomena and addressing related challenges. Thirty-five participants, including the teacher and undergraduate students, in a 36-hour 'Graphic Design with Creative Narratives' course. Using an action-research approach with Lave and Wenger's Situated Learning: Legitimate Peripheral Participation (SL: LPP), the alignments highlighted utilizing triangulation methods to identify emerging phenomena, addressing the implications of failed alignments and delayed changes in student performance, and finally emphasizing facilitate transparency in situated resources. It discovered that 1) rebounding the rate of submission and attendance, 2) building a sense of security, and 3) exceeding the learning outcome were the key emerging phenomena and alignments that could be made amid the transition. This study identified key learning challenges in e-learning transitions, emphasized transparent educational resources, and offered adaptive strategies to enhance engagement and outcomes, aligning with SDG-4 goals and highlighting the need for ongoing exploration of e-activities methods.
Keywords: e-learning, action research, situated learning, legitimate peripheral participation
Desafios para a Atenção Primária à Saúde Indígena brasileira sob a perspectiva da gestão do trabalho
Authors: Pereira Edson Oliveira , Lopes Luciana Maciel de Almeida , Oliveira Williames Pimentel de , Melo André Longo Araújo de
Published: January 2025

Enquanto a Atenção Primária à Saúde convencional enfrenta grandes desafios na promoção da saúde brasileira, a Atenção Primária à Saúde Indígena, pouco abordada pela ciência, experimenta problemática adicionais aos desafios convencionais. O provimento e fixação de profissionais da área de saúde nos territórios indígenas, a adoção de processos de trabalho capazes de contemplar as necessidades e especificidades do usuário indígena e a convivência harmônica entre a medicina acadêmica e a medicina indígena compões importantes desafios enfrentados pelos sistemas de saúde indígenas brasileiros. Este estudo objetiva explorar os desafios enfrentados pela Atenção Primária à Saúde Indígena brasileira considerando três categorias de análises: provimento e permanência de profissionais; processos de trabalho; e interculturalidade com as medicinas indígenas. Realizou-se uma pesquisa de natureza qualitativa e do tipo documental de fonte direta e indireta e reflexiva. As discussões centrais apresentadas trazem a formação intercultural como uma importante fragilidade em todas as categorias de análise, ao tempo em que se apresenta como uma potente ferramenta para avançar nos desafios propostos pelo trabalho. Assim, a conclusão apresentada neste estudo aponta a necessidade de investimentos nos processos formativos, na gestão do trabalho e nos processos assistenciais, considerando a interculturalidade como tema transversal nas ações a serem desenvolvidas.
PARTIALLY ANALYTICAL SOLUTION OF UNSTEADY IONIZED FLUID FLOW WITH INDUCED MAGNETIC FIELD
Authors:   Department of Mathematics Khulna University, Khulna, Bangladesh, Sazal Md Labib , Alam Dr. Md. Mahmud ,   Professor, Department of Mathematics Khulna University, Khulna, Bangladesh
Published: January 2025

Analytical studies have been conducted on
combined heat and mass transfer in unsteady ionized fluid
flow passing through a vertically oscillating electrically
non-conducting plate under an induced magnetic field.
Through the application of similarity transformations to
coupled ordinary differential equations, an analytical
solution for velocity fields, induced magnetic fields, and
temperature distribution is obtained. The resulting graphs
illustrate variations in the obtained results with different
parameter values, highlighting the effects of ionized fluid
flow under the influence of the induced magnetic field.