bluuebunny/crossref_metadata_2025 huggingface dataset:
How Far Will the Autocratic Model of Governance in Education System Prevail?
Authors: Yambi Tomás de Aquino Caluyua
Published: September 2024

Much has being discussed about autarchies in Angola lately. If it was not for the COVID-19 pandemic, 2020 would be the year of either gradual decentralization, proposed by the political party in power, or the totalitarian decentralization as proposed by the political party at opposition. The debate about autarchies seems pertinent due to the fact that locals are to have political, economic and administrative freedom in some way. The same figurine should be enhanced in education system. However, nowadays, Luanda detains an absolute power over the policies of education and the local counterparts are simply ignored and left under a laissez faire pace in detriment of an autocratic model, which clearly denies the development of Angolan Education at some point. In this position paper, we present a clear example of how this autocratic model of governance in education prevails, not only in terms of leadership, but also at the level of methodological sphere. Then some line caps as remedy are suggested. To attain such a desideratum, we first present a scenario, followed by some mismatches, first in terms of leadership, then academic and finally methodologically
Kết quả công tác tìm kiếm, thăm dò của Vietsovpetro giai đoạn 2010 - 2023 và kế hoạch trong giai đoạn tiếp theo
Authors: Nguyen Hung Anh , Vu Nam Hai
Published: September 2024

Sản lượng khai thác hàng năm của Liên doanh Vietsovpetro, sau khi đạt đỉnh với 13,5 triệu tấn dầu vào năm 2002 đã suy giảm nhanh chóng. Vì vậy, từ năm 2010, Vietsovpetro đã đẩy mạnh công tác tìm kiếm thăm dò, trong đó tập trung công tác tận thăm dò; nghiên cứu, đánh giá cơ hội đầu tư vào các lô mở trên thềm lục địa Việt Nam, mở rộng vùng hoạt động trên các lô dầu khí mới nhằm gia tăng trữ lượng, sớm đưa các công trình mới vào khai thác để ngăn chặn đà suy giảm sản lượng hàng năm.Bài báo đánh giá kết quả công tác tìm kiếm thăm dò của Vietsovpetro trong giai đoạn 2010 - 2023 và đưa ra kế hoạch trong giai đoạn tiếp theo trên cơ sở các kịch bản dự báo sản lượng khai thác trong giai đoạn 2024 - 2050.
Kinh nghiệm khai thác mỏ nhỏ ở thềm lục địa Việt Nam và tiềm năng phát triển các phát hiện dầu khí cận biên lô 09-1, bể Cửu Long
Authors: Vu Mai Khanh , Le Dang Tam , Tong Canh Son , Viet Dung  , Tran Quoc Thang , Bui Trong Han , Phan Duc Tuan , Thuc Khang
Published: September 2024

Mỏ dầu khí cận biên là mỏ dầu khí chưa thể phát triển khai thác do hiệu quả đầu tư tiệm cận dưới mức tối thiểu với trình độ công nghệ và các điều kiện kinh tế, kỹ thuật thông thường tại thời điểm đánh giá. Các mỏ này thường có trữ lượng nhỏ và rất nhỏ thường được xem xét đặc biệt cẩn trọng trước khi thực hiện đầu tư và phát triển bởi các mỏ này thường có thời gian khai thác ngắn, ít hiệu quả. Những năm gần đây, Liên doanh Việt - Nga “Vietsovpetro” đã tích cực triển khai công tác tìm kiếm thăm dò dầu khí, gia tăng trữ lượng. Tuy nhiên, phần lớn những phát hiện mới đều có trữ lượng dầu khí nhỏ. Việc đưa các mỏ nhỏ, cận biên vào phát triển khai thác rất khó khăn về công nghệ, kỹ thuật, khía cạnh kinh tế cũng như kỹ thuật, cần có những giải pháp công nghệ sáng tạo và chi phí đầu tư thấp. Bài báo giới thiệu kinh nghiệm của Liên doanh Việt - Nga “Vietsovpetro” trong phát triển các mỏ dầu khí có trữ lượng nhỏ và các phát hiện dầu khí mới, trữ lượng nhỏ, cận biên Lô 09-1, có triển vọng đưa vào khai thác.
Hiện trạng các mỏ dầu của Vietsovpetro và định hướng giải pháp khai thác hiệu quả
Authors: Pham Xuan Son , Nguyen Lam Anh , Ho Nam Chung , Phung My Anh
Published: September 2024

Trong 43 năm xây dựng và phát triển kể từ khi thành lập vào ngày 19/6/1981 và khai thác được tấn dầu đầu tiên vào tháng 6/1986, Liên doanh Vietsovpetro đã từng bước đạt được các mốc khai thác 50 triệu tấn dầu vào tháng 10/1997, 100 triệu tấn vào tháng 11/2001, 150 triệu tấn vào tháng 12/2005, 200 triệu tấn vào tháng 8/2012 với việc không ngừng mở rộng đối tượng và khu vực khai thác. Vào ngày 15/5/2024, Vietsovpetro đã đạt mốc khai thác 250 triệu tấn dầu từ 2 lô dầu khí (Lô 09-1 và Lô 09-3/12).
Bài báo phân tích, đánh giá hiện trạng các mỏ đang khai thác của Vietsovpetro, đặc biệt là các đối tượng khai thác có cấu trúc địa chất phức tạp, quy mô phân bố nhỏ, tốc độ suy giảm sản lượng nhanh... Trên cơ sở đó, đề xuất các nhóm giải pháp phù hợp để tối ưu công tác quản lý, vận hành khai thác và nâng cao hệ số thu hồi dầu, với mục tiêu hoàn thành mốc khai thác tấn dầu thứ 300 triệu trong tương lai.
Xây dựng mô hình địa cơ học từ tài liệu địa chất - địa vật lý giếng khoan: áp dụng cho mỏ Ruby, lô 01 & 02, bể Cửu Long
Authors: Van Hoang  , Nguyen Quoc Thap , Pham Quy Ngoc
Published: September 2024

Mỏ Ruby (Lô 01&02, bể Cửu Long) có cấu trúc địa chất phức tạp, gây ra nhiều thách thức trong quá trình khoan. Các vấn đề thường gặp bao gồm kẹt cần khoan, mất tuần hoàn dung dịch, thậm chí mất giếng khoan, dẫn đến thiệt hại kinh tế đáng kể. Để đảm bảo vận hành an toàn và tối ưu hóa chi phí khoan, cần phải hiểu rõ tính chất địa cơ học của đất đá trong khu vực.
Nghiên cứu này tập trung vào việc xây dựng mô hình địa cơ học 1D dựa vào tài liệu từ các đường cong địa vật lý giếng khoan. Mô hình này là công cụ hữu ích để dự báo và kiểm soát các thách thức trong quá trình khoan tại mỏ Ruby. Bằng cách xác định được khoảng tỷ trọng dung dịch khoan tối ưu dựa trên kết quả tính toán các thông số quan trọng như ứng suất lớp phủ, áp suất lỗ rỗng, các thông số đàn hồi và độ bền của đất đá, mô hình này góp phần nâng cao đáng kể độ ổn định của giếng khoan, giảm thiểu rủi ro và tối ưu hóa chi phí.
Giải pháp xử lý áp suất giữa các cột ống chống trong giếng khai thác mỏ Nam Rồng - Đồi Mồi
Authors: Quoc Khanh  , Huu Chinh  , Van Thinh
Published: September 2024

Áp suất giữa các cột ống chống là chỉ số quan trọng đánh giá trạng thái hoạt động của giếng khai thác. Nếu giá trị áp suất giữa các cột ống chống vượt ngưỡng quy định thì phải đóng giếng để xử lý áp suất này trước khi vận hành trở lại và nếu không kiểm soát được áp suất sẽ phải đóng giếng hoàn toàn. Nếu áp suất tăng chưa vượt giá trị quy định, có thể vận hành giếng với điều kiện cần theo dõi sát sao và liên tục. 
Kinh nghiệm xử lý áp suất giữa các cột ống chống trên thế giới cho thấy, đây là công việc phức tạp khó khăn, chi phí cao trong khi hệ số thành công thấp. Bài báo giới thiệu kết quả và kinh nghiệm xử lý áp suất giữa các cột ống chống được Liên doanh Vietsovpetro thực hiện thành công ở mỏ Nam Rồng - Đồi Mồi.
Nghiên cứu áp dụng công nghệ xử lý dầu paraffin bằng bơm vào đường khí gaslift
Authors: Dang Tam  , Trong Han  , Pham Thanh Vinh , Akhmadeev A.G. , Nguyen Huu Nhan , Le Thi Doan Trang , Chau Nhat Bang , Doan Tien Lu , Tran Thi Thanh Huyen
Published: September 2024

Dầu khai thác tại mỏ thuộc Liên doanh Vietsovpetro có hàm lượng paraffin cao, nhiệt độ đông đặc cao dẫn đến phức tạp trong quá trình vận hành hệ thống thu gom vận chuyển dầu và khí lắng đọng paraffin giảm công suất đường ống, tăng áp suất vận chuyển, tắc hệ thống vận chuyển sản phẩm khai thác... Trong bối cảnh sản lượng khai thác có xu hướng giảm, độ ngập nước cao, nhiệt độ chất lưu giảm dần... ảnh hưởng đến hoạt động khai thác dầu khí, tiềm ẩn rủi ro trong quá trình vận hành hệ thống khai thác.
Bài báo phân tích các yếu tố ảnh hưởng đến quá trình xử lý chất lưu, trên cơ sở đó đề xuất giải pháp công nghệ xử lý dầu có hàm lượng paraffin cao bằng hóa phẩm giảm nhiệt độ đông đặc (Pour point depressant - PPD) theo đường khí gaslift cho hệ thống vận chuyển dầu trên các công trình biển của Vietsovpetro để đảm bảo khả năng thu gom sản phẩm khai thác an toàn và hiệu quả.
Lựa chọn hệ dung dịch sửa giếng, hoàn thiện giếng tỷ trọng cao có khả năng bảo toàn độ thấm vỉa chứa
Authors: Ngo Thanh Mai , Do Thanh Trung , Kieu Anh Trung , Le Van Cong
Published: September 2024

Dung dịch sửa chữa giếng khoan có các đặc tính kỹ thuật công nghệ tương tự như dung dịch hoàn thiện giếng nhưng cần phải có hàm lượng pha rắn thấp để tránh gây ảnh hưởng xấu đến các tính chất thấm chứa tự nhiên vùng cận đáy giếng. Đồng thời dung dịch này cần có tính ổn định nhiệt, không gây ăn mòn thiết bị, an toàn đối với con người và môi trường sinh thái. Dung dịch sửa chữa giếng được sử dụng trong công tác phục hồi sản lượng dầu và kéo dài thời gian khai thác nhằm gia tăng hiệu quả kinh tế của giếng [1].
Bài báo giới thiệu kết quả nghiên cứu, chế tạo hệ dung dịch PV-BrinVis sử dụng trong quá trình sửa giếng, hoàn thiện giếng trên cơ sở các muối có dải tỷ trọng từ 1,3 - 2 cùng với chất hoạt động bề mặt nhớt đàn hồi (viscoelastic surfactant) kết hợp chất hydrophob hóa bề mặt đá vỉa và các phụ gia khác như chất ức chế ăn mòn, chất khử oxy… tạo hệ có tính chất lưu biến phù hợp có khả năng điều chỉnh tỷ trọng trong phạm vi yêu cầu, lại vừa có khả năng làm sạch giếng. Các chất hoạt động bề mặt nhớt đàn hồi dễ dàng được bơm rửa để không gây các nhiễm bẩn cho vùng cận đáy giếng sau khi kết thúc quá trình sửa giếng. Với khả năng ức chế sét tốt, tốc độ ăn mòn thấp, hệ dung dịch khoan muối tiên tiến này có nhiều ưu việt để bảo toàn được độ thấm vỉa chứa cũng như các thiết bị trong quá trình hoàn thiện, sửa chữa và bảo quản giếng.
30 Years of Macroeconomic Effects in Zambia-VECM, ARDL & IRF Approaches
Authors: Lungu Mable , Mulenga Richard
Published: September 2024

Purpose: This study examines the impact of selected time series macroeconomic variables on Zambia’s economic progress for thirty (30) years (1992 to 2022)
Methodology: The study employs the autoregressive distributed lag (ARDL), vector error correction models (VECMs) and the impulse response functions (IRFs) approaches.
Findings: The VECM regression estimates indicate that in the long-run, ceteris paribus, a 1% increase in inflation and population growth rates cause a significant positive impact on economic progress of 0.36% and 0.68 % respectively whereas the total public debt stock causes decrease in economic growth of 0.45%. The ARDL long-run regression estimates indicate that ceteris paribus, a 1% increase in inflation and public debt significantly reduces real GDP by 0.2% and 0.03%, respectively, but a 1% increase in population growth rate increases real GDP by 23.11%. The IRF estimates show that a negative shock to the real GDP causes a mildly negative effect on the inflation rate, causes a significant positive increase in the population growth rate, which dissipates after 9.5 years and causes a significant positive increase in public debt, which dissipates after 10 years.
Unique Contribution to Theory, Policy and Practice: Therefore, the study recommends that the Zambian government should prioritize repayment of the outstanding public debt by bringing down the debt-to-GDP ratio to sustainable levels, adhering to prudent public financial management and continuing to grow the domestic revenue base. The policies to promote population growth should be pursued cautiously because rapid population growth rates could erode the future economic growth prospects of Zambia.
Paradigm Shift in Finance: Insights from COVID 19
Authors: Kumar Umesh , Huang Biqing
Published: September 2024

Purpose: This paper analyzes the literature and findings on the COVID-19 impact on the economy and provides insights and policy formulations for future pandemic-like crises.
Methodology: Our paper follows secondary research analyzing existing literature on COVID-19 and its impact on the global economy. Our paper adopts a methodical literature survey approach to analyze peer-reviewed finance research articles. This approach has helped to evaluate the policy responses to the pandemic by analyzing studies on fiscal stimulus, monetary interventions, and public health measures. Further, it helps identify common trends, patterns, and gaps in knowledge.
Findings: The COVID-19 pandemic has driven a paradigm shift in finance, reshaping how financial institutions operate, how consumers interact with financial services, and how markets function. These changes will likely have lasting effects, driving continued innovation and transformation in the financial sector. A forward-looking fiscal and monetary policy is vital for long-term economic care. The policies include investing in healthcare infrastructure, the digital economy, and education to prepare for future crises.
Unique Contribution to Theory, Practice, and Policy: The COVID-19 pandemic undeniably created upheavals in the financial world. It forced a reevaluation of many long-held assumptions and accelerated trends already underway. Our paper demonstrates that future pandemic policies need to be more flexible and adaptable based on the economic structure and intensity of the crisis, along with international cooperation. The COVID-19 highlighted the economic vulnerabilities, transformed consumer behavior, and altered market structures. The paper’s insights provide a mechanism and illustration of how to mitigate and minimize such a crisis. Traditional economic and monetary policies are ill-suited. Countries should be ready for responsive policies and adjustments to manage pandemic-like crises; hence, this paper provides the groundwork for more adaptable policies.
Representation of Chinese cultural meanings in the film “Everything Everywhere All at Once”
Authors: Лаврова А.М.
Published: September 2024

В статье представлен анализ репрезентации китайских культурных смыслов в кинокартине “Все, везде и сразу”. Эти смыслы проявляются как в поверхностных визуальных отсылках — одежде определенного цвета, даосских символах Инь и Ян, — так и в более глубинных смыслах — схожесть жизненного пути главной героини с жизнью принца Гаутамы и т. д. Автор рассматривает элементы традиционной китайской культуры в кинокартине, анализирует влияние философских учений — буддизма и даосизма — на сюжет фильма. В работе также представлен анализ полихронного восприятия времени как отражения китайской картины мира, нашедшей отражение в кинокартине. В статье при помощи философско-культурологического и семиотического анализа раскрываются и анализируются репрезентации китайских культурных смыслов в кинокартине “Все, везде и сразу”, делается вывод о том, что кинокартина пропитана культурными смыслами и традициями Поднебесной, что говорит о высоком уровне влияния Китая на мировую культуру. Актуальность исследования обусловлена сложностью в чтении китайских культурных подтекстов и усилением влияния Китая на мировой арене.

The article presents an analysis of the representation of Chinese cultural meanings in the film “Everything Everywhere All at once”. These meanings are manifested both in superficial visual references — clothes of a certain color, Taoist symbols of Yin and Yang — and in deeper meanings — the similarity of the main character's life path with the life of Prince Gautama, etc. The article examines the elements of traditional Chinese culture in the film, analyzes the influence of philosophical teachings — Buddhism and Taoism — on the plot of the film. The paper also presents an analysis of the polychronous perception of time as a reflection of the Chinese picture of the world, reflected in the film. The article, using philosophical, cultural and semiotic analysis, reveals and analyzes the representations of Chinese cultural meanings in the film “Everything Everywhere All at Once”, concludes that the film is imbued with cultural meanings and traditions of the Middle Kingdom, which indicates a high level of Chinese influence on world culture. The relevance of the research is due to the difficulty in reading Chinese cultural overtones and the increasing influence of China on the world stage.
Games4Justice: Game Reports
Authors: Tafari Menelik
Published: September 2024

Four games were designed as part of an autoethnographic, teacher research study conducted from 2013-2017 on the implementation of play-, game-, and design-based teaching and assessment. The study was conducted at two urban, independent, K-12 day schools with fewer than 500 and 100 students, respectively, and supported as part of a certification program in Serious Game Design & Research. Pirate Oasis, a six-week ecological engagement, human development game, and the first developed for the Games for Social Justice Course (G4J). Friendship Is Magic, a Alternate Reality Game that was never played. #SaveOurGirls is a 3-hour forum game, simulation & workshop on combating human trafficking through public pedagogy. The experience is meant for 10-15 players and 30-60 audience members. Xplore LA, a location-based, geocaching, two-dimensional fighting game, designed by students to inspire young people to explore their local parks and other green- and play-spaces in park-poor communities in Los Angeles, like Boyle Heights. Xplore LA was designed as one of three projects organized to engage youth to access recreational sites near them via public transportation in the park-poor community of Boyle Heights. Through the campaign, students also developed a Ross Valencia Park Redesign, a Pocket Park Manual and the foundations for Xplore LA.
Tree Mortality, Biome Shifts, and Living Sustainably to Halt Human-Caused Climate Change
Authors: Gonzalez Patrick
Published: September 2024

Human-caused climate change has caused extensive tree mortality across West Africa and the western United States and biome shifts around the world. Reducing excessive material consumption by people offers a solution to halt climate change and risks to trees.
Enhancing visitor use management in parks and protected areas through qualitative research
Authors: Rose Jeff , Zajchowski Chris , Fefer Jessica , Brownlee Matthew T.J.
Published: September 2024

Applied research aims to generate knowledge that can be used to improve policy and practice. In the field of visitor use management (VUM), researchers and park managers seek to generate knowledge regarding specific dimensions of visitor experiences within and across parks and other kinds of protected areas. A wide variety of management-centric questions are addressed through VUM research. In this article, we argue that to answer such questions, VUM researchers and managers can use qualitative methods (independent of or coupled with quantitative methods) to deepen our knowledge about visitor experiences while improving visitor use management policies and practices. We present current qualitative research designed to aid in the management of parks, and future directions for qualitative inquiry. Existing qualitative research and future possibilities call to expand our collective understanding of what kind of knowledge “counts” in VUM research.
Long non-coding RNA small nucleolar RNA host gene 8 (SNHG8) sponges miR-34b-5p to prevent sepsis-induced cardiac dysfunction and inflammation and serves as a diagnostic biomarker
Authors: Liu Yongfu , Sun Fanting , Wang Xiaoyu , Guo Guancheng
Published: September 2024

Introduction

The study aimed to evaluate, for the first time, the diagnostic value of long non-coding RNA (lncRNA) small nucleolar RNA host gene 8 (SNHG8) in sepsis and its molecular mechanisms in sepsis-induced inflammation and cardiac dysfunction.

Material and methods

A total of 126 sepsis patients and 81 healthy controls were enrolled. Serum SNHG8 levels were assessed by RT-qPCR. Levels of pro-inflammatory factors were examined via ELISA. The ROC curve was employed to assess the diagnostic significance of SNHG8. Cardiomyocytes were exposed to lipopolysaccharide (LPS) to simulate sepsis-induced cardiac dysfunction in vitro. Cell proliferation and apoptosis were measured through CCK-8 and flow cytometry. Dual luciferase reporter gene assay and RIP assay were conducted to verify the target relationship between SNHG8 and miR-34b-5p.

Results

SNHG8 was reduced in sepsis patients (p < 0.05) and negatively correlated with procalcitonin, C-reactive protein, and pro-inflammatory factors (p < 0.05). SNHG8 had outstanding performance in distinguishing sepsis patients from healthy individuals with the AUC of 0.878. Among septic patients, those with cardiac dysfunction had significantly downregulated SNHG8 levels (p < 0.05). For septic patients, SNHG8 was found to be an independent predictor for the occurrence of cardiac dysfunction (HR = 5.466, 95% CI = 2.230–13.397, p < 0.001). Elevated SNHG8 reversed LPS-induced cell apoptosis, and attenuated the over-secretion of inflammatory factors. miR-34b-5p was significantly upregulated in septic patients and negatively correlated with SNHG8, indicating that it acted as a sponge for SNHG8.

Conclusions

Reduced SNHG8 is a potential diagnostic biomarker for sepsis. It is involved in sepsis-induced inflammatory response and cardiac dysfunction through sponging miR-34b-5p.
Systemic immune-inflammation index values are associated with non-melanoma skin cancers: evidence from the National Health and Nutrition Examination Survey 2010–2018
Authors: Zhao Honglei , Wu Ji , Wu Qianqian , Shu Peng
Published: September 2024

Introduction

The systemic immune-inflammation index (SII), based on peripheral lymphocyte, neutrophil, and platelet counts, has recently been investigated as a prognostic marker in several tumors. However, the SII has rarely been reported in skin cancers. In this study, we aimed to assess the association between SII values and the risk of occurrence of skin cancers.

Material and methods

This cross-sectional study was based on National Health and Nutrition Examination Survey data from 2010 to 2018 and involved 32,012 participants. The SII was calculated as the platelet count × neutrophil count/lymphocyte count. A weighted multivariate logistic analysis was conducted to examine the relationship between SII values and the occurrence of skin cancers. In addition, a subgroup analysis and a sensitivity analysis were conducted to identify underlying moderators and the stability of the relationship, respectively.

Results

Compared with participants in the lowest quartile of SII values, the odds ratios for non-melanoma skin cancer were 1.650 (95% CI: 1.158–2.352) for participants in the quartile with the highest SII values after multivariate adjustments. In subgroup analyses, we found significant interactions between log-transformed SII values and age (p < 0.001 for interaction), race (p < 0.001 for interaction), education level (p < 0.001 for interaction), marital status (p < 0.001 for interaction), and annual household incomes (p < 0.001 for interaction) in the association with non-melanoma skin cancer.

Conclusions

Our findings suggest a positive association between high SII values and skin cancers in the U.S. population. Age, levels of education, marital status, and annual household incomes affect the positive association between high SII values and non-melanoma skin cancers.
Profitability of Utilizing High Quality Cassava Flour (HQCF) in Confectionery/Bakery Firms in Parts of North Central Nigeria.
Authors: Sesugh Amena Desmond , Zang Pam Martin , Musa Lenge Salome , Nanbol Danjuma , Abdullahi Munira , Iheanacho Augusta Chinwenwa , Bosede Ayoola Josephine
Published: September 2024

High Quality Cassava Flour (HQCF), derived from cassava tubers, is a significant meal component due to its high carbohydrate content and various benefits The study investigated the profitability of using HQCF in confectionery and bakery firms in North Central Nigeria. Data was collected from 78 confectionery and bakery firms and 710 workers using structured questionnaires and analyzed with SPSS 23. The study found that most workers were male (62.8%), aged 21-40 (50%), married (75.6%), and had tertiary education (68.0%). Most earned below ₦100,000 monthly, with additional income sources. Key economic factors included land acquisition (61.3% self-purchased), credit access (85.9% from banks), and external financial assistance (91.0%). Firms awareness of government policies on HQCF was high (87.2%), and profitability was significant, with ₦1 invested generating ₦3.76k in revenue. Market availability and cooperative societies for bakers were crucial for success. The study concluded that using HQCF in confectioneries and bakeries in the FCT, Benue, and Nasarawa states is profitable. It revealed that most firms have been losing profit due to non-compliance with policies requiring the inclusion of HQCF in their products. This non-compliance emanates from lapses in policy enforcement. To address this issue, the government should enforce existing policies through relevant agencies. Furthermore, the government should support HQCF availability, offer more credit access, and provide training programs to ensure the sustainability and profitability of HQCF in Nigeria.
El riesgo operacional como factor diferenciador del contrato de concesión de servicios
Authors: Candela Talavero José Enrique
Published: September 2024

En la contratación pública el licitador adjudicatario asume, al ejecutar el contrato, un riesgo y ventura. Cuando estamos ante prestaciones de contratos en las que existe una transferencia del riesgo estamos en un contrato de concesión de servicios, de forma que aquel soporta tanto el riesgo como la ventura derivada de la evolución y éxito del mismo. Es necesario diferenciar este tipo de otros, como el servicio o la concesión demanial, así como aplicar la normativa sobre la concesión que regula la Directiva 2014/23/UE, del Parlamento Europeo y del Consejo, de 26 de febrero de 2014, relativa a la adjudicación de contratos de concesión junto a la jurisprudencia europea.
Las ganancias y pérdidas patrimoniales en la transmisión de participaciones sociales: la prueba y la presunción del artículo 37.1 b) de la LIRPF (tasación pericial contradictoria)
Authors: Sánchez Gervilla Antonio
Published: September 2024

Se analiza en el presente comentario la doctrina emanada de la Sentencia del Tribunal Supremo de 12 enero de 2024, que aborda, de nuevo, un aspecto de nuclear relevancia práctica respecto al artículo 37.1 b) de la Ley del impuesto sobre la renta de las personas físicas (LIRPF), cual es dirimir si las reglas de valoración contenidas en dicho precepto constituyen una comprobación de valores en la que se emplean los medios de comprobación del artículo 57.1 a) o i) de la Ley general tributaria (LGT) y, por tanto, hay que realizar la valoración por el procedimiento de comprobación de valores del artículo 134 de la LGT y ofrecer la posibilidad de solicitar la tasación pericial contradictoria conforme al artículo 135 de la LGT, o, por el contrario, supone la fijación del valor por aplicación de una norma legal (art. 159.5 del Reglamento general de aplicación de los tributos), en cuyo caso no estamos ante una comprobación de valores y no se puede promover la tasación pericial contradictoria. Para el Alto Tribunal, que se pronuncia en la resolución comentada fijando doctrina, la determinación del valor de transmisión de las participaciones sociales de una entidad no cotizada en mercados efectuada por aplicación de las reglas de valoración contenida en el artículo 37.1 b) de la LIRPF no constituye una comprobación de valor en la que se empleen los medios de comprobación del artículo 57.1 a) o i) de la LGT, por lo que no resulta de aplicación la normativa de la tasación pericial contradictoria ni es admisible su utilización en corrección de la liquidación tributaria resultante.
Understanding and Defining Hindu and Integrative Spiritual Care
Authors: Bindlish Puneet K. , Nandram Sharda S. , Joshi Gunjan
Published: September 2024

Spiritual care holds significant promise for the future of work in organizations. However, it lacks a workable ontological foundation in the management context due to its heterogeneity. This article investigates the nature of spiritual care in contemporary contexts and identifies its key elements from an integrative perspective using the holistic framework of Hinduism. The definition of spiritual care was derived by applying design science research and a novel integrative approach adapted from the Tarka method of the Hindu philosophical system. The proposed definition was validated by spiritual-care providers in the field. The proposed integrative definition will allow scholars to develop their own comprehensive definitions for practice and for contributions to the field. The expansion of the scope of spiritual care into domains like business will support the recognition of the positive outcomes of spiritually based interventions in the workplaces of the future.
Pengaruh Fee Audit, Rotasi Audit dan Audit Tenure terhadap Kualitas Audit
Authors: Syahputra Rizki , Yusuf Fadel , Yusuf Fahri
Published: September 2024

This study aims to determine whether Audit Fee, Audit Rotation and Audit tenure have an effect on Audit Quality in Property and Real Estate Companies Listed on the Indonesia Stock Exchange (2017-2020). This research method uses associative research. The population in this study were 65 property and real estate companies. Based on the criteria that have been set from 2017 to 2020, a sample of 11 property and real estate companies listed on the Indonesia Stock Exchange was taken. The data collection technique used is the documentation method. The data analysis technique used in this study is logistic regression test and hypothesis testing using the SPSS 25 program. The results of the study found that the Audit Fee has a significant effect on Audit Quality. Audit rotation has no significant effect on Audit Quality. Audit tenure has no significant effect on Audit Quality. Meanwhile, from hypothesis testing simultaneously Fee Audit, Audit Rotation and Audit tenure, simultaneously affect Audit Quality.AbstrakPenelitian ini bertujuan untuk mengetahui apakah Fee Audit, Rotasi Audit dan Audit tenure berpengaruh terhadap Kualitas Audit pada Perusahaan Property dan Real Estate yang Terdaftar di Bursa Efek Indonesia (2017-2020). Metode penelitian ini menggunakan penelitian asosiatif. Populasi dalam penelitian ini sebanyak 65 perusahaan property dan real estate. Berdasarkan kriteria yang telah ditetapkan dari tahun 2017 hingga 2020 diambil sampel sebanyak 11 perusahaan property dan real estate yang terdaftar di Bursa Efek Indonesia. Teknik pengumpulan data yang digunakan adalah metode dokumentasi. Teknik analisis data yang digunakan pada penelitian ini adalah uji regresi logistik dan uji hipotesis dengan menggunakan program SPSS 25. Hasil penelitian menemukan bahwa Fee Audit berpengaruh signifikan terhadap Kualitas Audit. Rotasi Audit tidak berpengaruh signifikan terhadap Kualitas Audit. Audit tenure tidak berpengaruh signifikan terhadap Kualitas Audit. Sedangkan dari uji hipotesis secara simultan Fee Audit, Rotasi Audit dan Audit tenure, secara simultan berpengaruh terhadap Kualitas Audit.
Analisis Kesalahan Siswa Dalam Menyelesaiakan Soal Pemahaman Konsep Matematis Pada Materi Matriks
Authors: Kurniawati Septi , Kartono Kartono , Dewi Nuriana Rahmani , Zainuri Zainuri , Walid Walid
Published: September 2024

Matriks merupakan materi yang sangat penting dalam pembelajaran matematika. Tujuan dari penelitian ini adalah untuk mengidentifikasi kesalahan dan miskonsepsi yang dilakukan siswa ketika mempelajari konsep materi matriks. Penelitian ini menggunakan metode kualitatif . Subyek penelitian ini melibatkan 36 siswa kelas XI. Data dihasilkan dari analisis isi tanggapan tertulis para siswa terhadap 4 soal matriks. Wawancara dilanjutkan dengan dua siswa dengan kategori kemampuan sedang dan kemampuan rendah yang digunakan untuk mendapatkan pemahaman yang lebih baik tentang kesalahan yang siswa lakukan. Penelitian ini menemukan bahwa siswa memiliki berbagai kesalahan yaitu kesulitan menyatakan definisi matriks, kesalahan menyebutkan bukan contoh dua matriks yang dapat dikalikan, kesalahan dalam kesamaan matriks dan kesalahan konsep operasi perkalian matriks. Kesalahan-kesalahan tersebut mengidentifiksi bahwa tingkat pemahaman konsep matematika pada operasi matriks masih rendah. Guru disarankan untuk merancang pembelajaran yang efektif dengan memperhatikan kesalahan siswa untuk meminimalisir miskonsepsi siswa dalam memahami konsep matriks.
Determinants of Verbal Abuse in Preschool-Aged Children: An Analytical Study
Authors: Wahyuni Liza , Rizana Novia , Muhazir Rahmad , Fazira Cut Dilla
Published: September 2024

The impact of child abuse involves a range of psychological problems that can continue into adulthood, child abuse is not only limited to physical abuse but also includes emotional and verbal abuse. This study aimed to evaluate determinants of verbal abuse in preschool-aged children. This is a cross-sectional study involving 112 mothers with preschool-aged children recruited using total sampling method in Peusangan Sub-district, Bireun District, Aceh, Indonesia. Results showed that the majority of respondents reported a history of verbal abuse from their parents (54.5%) and also had done at least a form of verbal abuse to their children (60.7%). The chi-square test showed that there is a significant association between mother’s education, history of verbal abuse, and family’s income with verbal abuse in Preschool-Aged Children. The result of this study concluded that there was a significant association between mother’s education, history of verbal abuse, and family’s income with verbal abuse in Preschool-Aged Children.
Šoštanj v luči modernizacije življenja: higienizacija in elektrifikacija
Authors: Aplinc Miran
Published: September 2024

Šoštanj kept up with other towns in Slovenia when it came to its modernization achievements. The first initiative for the modernization of larger towns was the wish to clean the streets for the sake of hygiene and the prevention of infectious and fatal diseases, especially cholera. Later, street lighting came into play. The construction of the public water supply and sewage system in Šoštanj greatly contributed to the modernization and the hygiene of living conditions as well as the image of the square and the town. The construction of the Celje–Velenje railway line in 1891 had a decisive influence on the development of industry. It also improved transport routes and people's travel habits. Today, Šoštanj is known for the production of electricity (TEŠ), but the first attempts to use electric current date back to the last decades of the 19th century. All the aforementioned influences of modernization had a decisive influence on the development of trade and industry in Šalek Valley.
An Empirical Research on the Economic Impact of War on Citizens and Consumers: The Case of Russian Ukrainian War
Authors: ICHIM Alexandru – Mihaita , FULGA Teodora Monica
Published: September 2024

This study provides a comparative analysis of the impact of the Ukraine war (February 2022 – December 2023) on consumer behavior in the European Union and South Korea. The research fills a gap in the literature by examining the effects of a military crisis on two economically connected regions sharing borders with the instigating country. Utilizing the Difference-in-Difference (DiD) statistical technique, the study analyzes the evolution of the Consumer Price Index (CPI) for food, non-alcoholic beverages, and energy. The 21st century, despite technological advancements and lessons from history, has not been immune to conflicts, as exemplified by the Russia-Ukraine war. This conflict, occurring on the “old continent” and affecting the EU, one of the world’s largest democratic alliances, highlights the disparities between nations in the modern era.
Developing The Financial-Banking System to Accelerate the Transition to A Green Economy
Authors: PULBERE-GHELASE Carmen Cornelia , NECULITA Mihaela , Ancuta SARPE Daniela
Published: September 2024

At the macro level, the companies need financial instruments, whose policy promotes the social dimension and the slow growth of their desirable business models. In order to support the transition of the financial system, the standards related to the financial market, which will be implemented in the sustainability reports of the participants of the financial markets, offer increased protection to investors, through the lens of the obligation to inform about the approach to sustainability from the producers of financial services and also from the sellers of financial products. The regulations that support the transition to a more sustainable economy of the financial system involves the sustainability of financial products.
Commodity Market Risk as a Determinant of Corporate Capital Structure
Authors: SZYDŁOWSKI Konrad
Published: September 2024

The article addresses the problem of managing the capital structure of enterprises in the conditions of commodity market risk. The problem of capital structure determinants is well documented, but the impact of oil price volatility still remains a research gap. The article also sheds new light on the problem of capital structure management in a turbulently changing economic environment. The research goal was to determine the importance of the volatility of crude oil prices as a determinant of capital structure. The analysis was based on the group of companies which represent the oil industry.
Considerations on citizen participation in the development of public policies: insights from a Habermasian perspective
Authors: Egas Moreno Fanny Graciela , Andrade Arias Mariela Susana , Sarzosa Eras Edison Rene , Hernández Arauz Marco Antonio
Published: September 2024

The Habermasian theory has the potential to help understand government initiatives aimed at implementing actions in the public interest with social participation. It provides an epistemic framework for understanding the coherence, comprehensiveness, and sustainability of government decisions and actions. The objective of this analysis was to examine the fundamental concepts of Habermasian thought and its strengths in understanding public policies. Additionally, a proposed analytical framework of public policy with Habermasian categories is presented. A documentary-analytical methodology was used, involving the review, analysis, systematization, and interpretation of books, scientific articles, and theses related to the central themes of the study. The results indicate that the theory of communicative action, the notions of public sphere, and deliberative procedure enable the creation of mechanisms and spaces for debate and social participation in the management of public policies, legitimizing the normative system in a democratic rule of law. In conclusion, it is established that the use of analytical categories from Habermasian thought, when contextualized, contributes to the practice of social management in addressing public policy issues of collective interest.
Measurement report: Source attribution and estimation of black carbon levels in an urban hotspot of the central Po Valley – an integrated approach combining high-resolution dispersion modelling and micro-aethalometers
Authors: Veratti Giorgio , Bigi Alessandro , Stortini Michele , Teggi Sergio , Ghermandi Grazia
Published: September 2024

Abstract. Understanding black carbon (BC) levels and its sources in urban environments is of paramount importance due to the far-reaching health, climate, and air quality implications. While several recent studies have assessed BC concentrations at specific fixed urban locations, there is a notable lack of knowledge in the existing literature on spatially resolved data alongside source estimation methods. This study aims to fill this gap by conducting a comprehensive investigation of BC levels and sources in Modena (Po Valley, Italy), which serves as a representative example of a medium-sized urban area in Europe. Using a combination of multi-wavelength micro-aethalometer measurements and a hybrid Eulerian–Lagrangian modelling system, we studied two consecutive winter seasons (February–March 2020 and December 2020–January 2021). Leveraging the multi-wavelength absorption analyser (MWAA) model, we differentiate sources (fossil fuel combustion, FF, and biomass burning, BB) and components (BC vs. brown carbon, BrC) from micro-aethalometer measurements. The analysis reveals consistent, minimal diurnal variability in BrC absorption, in contrast to FF-related sources that exhibit distinctive diurnal peaks during rush hours, while BB sources show less diurnal variation. The city itself contributes significantly to BC concentrations (52 ± 16 %), with BB and FF playing a prominent role (35 ± 15 % and 9 ± 4 %, respectively). Long-distance transport also influences BC concentrations, especially in the case of BB and FF emissions, with 28 ± 1 % and 15 ± 2 %, respectively. When analysing the traffic-related concentrations, Euro 4 diesel passenger cars considerably contribute to the exhaust emissions. These results provide valuable insights for policy makers and urban planners to manage BC levels in medium-sized urban areas, taking into account local and long-distance sources.
Optimal Disturbances of Blocking: A Barotropic View
Authors: Shi Bin , Luo Dehai , Zhang Wenqi
Published: September 2024

Abstract. In this paper, we explore optimal disturbances of blockings in the equivalent barotropic atmosphere using the conditional nonlinear optimal perturbation (CNOP) approach. Considering the initial blocking amplitude, the optimal disturbance exhibits a solitary wave-like pattern. As the size increases incrementally, the spatial pattern becomes more concentrated, and the nonlinear evolution becomes more pronounced. During the evolution, it only focuses on gradually intensifying the blocking amplitude without any other influence. Additionally, based on the medium-range experiments, the time-delay optimal disturbance appears to lead to larger errors, making it more challenging to predict. Considering the preexisting synoptic-scale eddies, the optimal disturbance displays a sharply concentrated pattern, even more concentrated by increasing the size. However, it is worth noting that the nonlinear evolution undergoes significant changes, compared to disturbances of the initial blocking amplitude. Meanwhile, we find that the optimal disturbance not only strongly impacts the amplitude of blockings but also their shape, making eddy straining and wave breaking more chaotic and predominant, further influencing the development of weather extremes. This suggests that blockings are more sensitive to perturbations of preexisting synoptic-scale eddies than initial blocking amplitudes. Furthermore, the perturbations of the synoptic-scale eddies are more likely to lead to the development of weather extremes, making them less predictable. In medium-range experiments, it is also found that time-delay disturbances result in larger errors, particularly during the decay period. Finally, we discuss how the variations of westerly wind influence optimal disturbances in spatial patterns and nonlinear evolution as well as their relation to predictability.
A strontium isoscape of southwestern Australia and progress toward a national strontium isoscape
Authors: de Caritat Patrice , Dosseto Anthony , Dux Florian
Published: September 2024

Abstract. Strontium isotopes (87Sr/86Sr) are widely used tracers in the geosciences. Here we exploit an opportunity to determine 87Sr/86Sr ratios on archived fluvial sediment samples from the low-density National Geochemical Survey of Australia. The present study targeted the Yilgarn Craton in southwestern Australia. One hundred and seven new samples were taken from a depth of ~ 60–80 cm in floodplain deposits at or near the outlet of large catchments (drainage basins). A coarse (< 2 mm) grain-size fraction was air-dried, sieved, milled then digested (hydrofluoric acid + nitric acid followed by aqua regia) to release total Sr. The Sr was then separated by chromatography and its 87Sr/86Sr ratio determined by multicollector-inductively coupled plasma mass spectrometry. Results demonstrate a wide range of quite elevated Sr isotopic values (0.7152 to 1.0909, median 0.7560) over the survey area, reflecting a large diversity of source rock lithologies, geological processes and bedrock ages. Spatial distribution of 87Sr/86Sr shows coherent (multi-point anomalies and smooth gradients), large-scale (> 100 km) patterns that appear to be broadly consistent with surface geology, regolith/soil type, and/or nearby outcropping bedrock. The most radiogenic sediment values in the Yilgarn region (87Sr/86Sr > 0.8) all come from sites underlain by Archaean bedrock (2500–4000 Ma) and almost exclusively felsic intrusive lithologies. Conversely, almost all sites underlain by younger and non-granitic bedrock have outlet sediments of a less radiogenic character (87Sr/86Sr < 0.8). Sampling sites underlain by mafic and ultramafic bedrock yield unradiogenic Sr sediment signatures despite their Archaean age. Several sediment 87Sr/86Sr results were validated by comparison to previously published whole-rock data from their catchment, for both unradiogenic and radiogenic cases. The new Sr isotopic data are also interrogated in terms of the mineral occurrences (i.e., mineral deposits and/or operating mines) found in their catchment. Several catchments containing mineral resources across a range of commodities stand out as high 87Sr/86Sr outliers (87Sr/86Sr > 0.8), whilst over half of the registered mineral resources come from an intermediate, yet still elevated, catchment sediment 87Sr/86Sr range (87Sr/86Sr = 0.728–0.767). Avenues for future work are proposed, including a national-scale Sr isoscape for Australia. Such isoscape could be useful in future geological, forensic, archaeological, paleontological and ecological studies. The new spatial Sr isotope dataset for the southwestern Australia region is publicly available (de Caritat et al., 2024; https://dx.doi.org/10.26186/149755).
Design and performance of ELSA v2.0: an isochronal model for ice-sheet layer tracing
Authors: Rieckh Therese , Born Andreas , Robinson Alexander , Law Robert , Gülle Gerrit
Published: September 2024

Abstract. We provide a detailed description of the ice-sheet layer age tracer Englacial Layer Simulation Architecture (ELSA) – a model that uses a straightforward method to simulate the englacial stratification of large ice sheets – as an alternative to Eulerian or Lagrangian tracer schemes. ELSA's vertical axis is time, and individual layers of accumulation are modeled explicitly and are isochronal. ELSA is not a standalone ice-sheet model but requires unidirectional coupling to another model providing ice physics and dynamics (the “host model”). Via ELSA's layer tracing, the host model’s output can be evaluated throughout the interior using ice core or radiostratigraphy data. We describe the stability and resolution dependence of this coupled modeling system using simulations of the last glacial cycle of the Greenland ice sheet using one specific host model. Key questions concern ELSA's design to maximize usability, which includes making it computationally efficient enough for ensemble runs, as well as exploring the requirements for offline forcing of ELSA with output from a range of existing ice-sheet models. ELSA is an open source and collaborative project, and this work provides the foundation for a well-documented, flexible, and easily adaptable model code to effectively force ELSA with (any) existing full ice-sheet model via a clear interface.
Analytical treatment of proton double-quantum NMR intensity build-up: multi-spin couplings and the flip-flop term
Authors: Fatkullin Nail , Brekotkin Ivan , Saalwächter Kay
Published: September 2024

Abstract. A modified Anderson-Weiss approximation for describing double quantum (DQ) NMR experiments in systems with many I = 1/2 spins is proposed, taking inter-spin flip-flop processes into special consideration. In this way, an analytical result is derived for multi-spin systems for the first time. It is shown that in the initial stages of DQ intensity build-up, the probability of flip-flop processes in DQ experiments is half as large as in analogous Hahn-echo or free-induction-decay experiments. Their influence on the experimentally observed DQ NMR signal becomes dominant at times t > (9/2)1/2 T2eff ≈ 2.12T2eff, where T2eff is the effective spin-spin relaxation time measured by the Hahn echo. Calculations and a comparison with spin-dynamics simulations of small spin systems up to 8 spins reveal a satisfactory agreement.