bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of the empirical complexity of Advanced Encryption Standards - 128 statistically
Authors: Kumar Animesh , Pranav Prashant , Dutta Sandip , Chakraborty Soubhik
Published: September 2024

Algorithm analysis stands as a cornerstone in the field of theoretical computer science, captivating researchers with its focus on dissecting and understanding the operational complexity of various algorithms. This intricate process is pivotal for acquiring deeper insights into the practical performance of algorithms, beyond what is discernible from theoretical analysis alone. A relatively novel and increasingly relevant approach in this realm is the concept of empirical complexity. This method diverges from traditional theoretical analysis by placing emphasis on the practical execution of an algorithm across a spectrum of varying and escalating input sizes. Such a hands-on approach is instrumental in predicting the complexity of the algorithm in real-world scenarios. The empirical data thus obtained undergoes rigorous statistical analysis, enabling a more nuanced and concrete understanding of the algorithm’s behavior and performance. This approach not only enriches our comprehension of algorithms but also plays a crucial role in optimizing and refining their application in practical computing environments. • Background: In the realm of digital security, cryptographic algorithms are indispensable for protecting applications and safeguarding sensitive information, be it of national significance or personal confidentiality. The efficiency of these algorithms in contemporary, high-velocity computational environments is paramount. Such algorithms typically incorporate intricate mathematical operations. This study delves into the computational intricacies of AES-128, a predominant cryptographic algorithm, scrutinizing its computational complexity. • Method: This study applies a thorough empirical complexity framework to establish the asymptotic limits of AES-128 accurately. It then conducts a detailed regression analysis with closed boundaries to measure AES-128’s empirical complexity with precision. • Result: The investigation reveals that the empirical complexity of AES-128 adheres to an Oemp (n) notation, where ‘n’ represents the size of the input data. • Conclusion: The research establishes that AES-128’s time complexity for both encryption and decryption processes aligns with O(n), a finding supported through both empirical evidence and theoretical analysis. Furthermore, a statistical model has been crafted to accurately forecast the execution time based on any specified input size for AES-128’s encryption and decryption activities. This advancement aids in predicting performance outcomes prior to the actual encoding process.
Leveraging Inter-Professional Surgical Nurse Led Clinic (SNLC) for Optimal Outcome
Authors: Sharmil S Hepsibah , Anantharamakrishnan R , TR Manjula , S Kanimozhi , Reyhan M Mohammed , P Adhavan , Chandran J Aarya , T Jeeva , S Jayamuthupakalvan
Published: September 2024

There is a pressing need to set up a nurse-led clinic in general surgery. With surgeries becoming more complex and patient numbers rising, it is crucial to use healthcare resources more effectively. The objectives were to establish nurse led surgical clinic in collaboration with the general surgery department, assess the impact on surgical patient outcomes, evaluate patient satisfaction, and analyse resource utilisation. Participatory action research methodology was employed using mixed methods focused on surgical patients (n=201) in unit-1 of the department of general surgery. Quantitative data was gathered through a self-administered questionnaire on patient satisfaction. Semi-structured interview was conducted to gather qualitative data on the effectiveness of Nurse Led Clinic (SNLC) SNLC to understand their experience. The analysis showed that SNLC services were beneficial to the surgical patients and consistently high in satisfaction rate (96.0%) in outpatient, pre-operative, and post-operative phases of the study. Surgeons expressed complete satisfaction with SNLC across the board. These results demonstrate the potential of SNLC to improve gratifying surgical experiences among surgical patients. SNLCs are crucial for improving surgical care practices and obtaining better patient outcomes as healthcare systems transition to more individualised and effective care models.
Optimization of Polyphenol Extraction Conditions from Rhizomes of Curcuma zedoaria with Antioxidant, Anti-Inflammatory and Anti-Diabetic Activities In Vitro
Authors: Tran Chi Linh , Do Van Mai , Huynh Van Truong , Hong Xuan Nguyen , Chong Kim Thien Duc
Published: September 2024

The recovery of polyphenol compounds is seen as an arduous task because polyphenol compounds are available as free aglycones, as sugar or ester conjugates, or as polymers with several monomeric components. The response surface method (RSM) as a tool to optimize the factors that affect extraction efficacy as well as to obtain maximum recovery of the compounds of interest. This study optimizes ultrasound-assisted polyphenol extraction from Curcuma zedoaria rhizomes using response surface methodology (RSM). Three variables were considered: Ethanol concentration (70 - 90 %, v/v), temperature (60 - 80 °C), and ultrasound time (15 - 25 min). Data were analyzed by ANOVA, yielding an R2 of 0.9993, a significant interaction effect (p < 0.0001), and an insignificant lack-of-fit test (p = 0.6684). Optimal conditions for maximum polyphenol content (TPC = 31.05 ± 0.53 mg GAE/g powder) were 80.02 % ethanol, 68 °C, 20.47 min ultrasound time, and 1/10 (w/v) raw material/solvent ratio. Experimental values matched RSM predictions, confirming successful extraction optimization from Curcuma zedoaria rhizomes. The polyphenol-rich optimum extract from Curcuma zedoaria rhizomes has been studied for its antioxidant, anti-inflammatory and anti-inflammatory properties in vitro. The results were found, the optimum extract of Curcuma zedoaria rhizomes could perform effective neutralization activities of free radicals performed in DPPH test (IC50 = 5.89 ± 0.23 µg/mL), NO· (IC50 = 5.89  ± 0.23 µg/mL) and ABTS·+ (IC50 = 8.28 ± 0.12 µg/mL). Besides, this optimum extract had the ability to protect red blood cell membranes and inhibit protein denaturation due to heat with IC50 times values ​​such as 29.06 ± 0.35 and 30.24 ± 0.32 µg/mL. In addition, it also significantly inhibited α-amylase, α-glucosidase enzyme activities with IC50 values ​​of 5.89 ± 0.23 and 9.62 ± 0.11 μg/mL, respectively. This investigation showed that the polyphenol-rich optimum extract from Curcuma zedoaria rhizomes was a promising antioxidant, anti-inflammatory and anti-diabetic agent.
HIGHLIGHTS

Using ultrasound and the Box-Behnken design to extract polyphenols from Curcuma zedoaria rhizomes can speed up and improve extraction efficiency.
The goal of this study is to maximize the extraction parameters for polyphenols from the rhizomes of Curcuma zedoaria.
There is strong agreement between the experimental data and the model that predicts the polyphenol content in the Box-Behnken design.
In vitro biological activities such as anti-inflammatory, antidiabetic and antioxidant properties are significantly correlated with polyphenol concentration.
The findings of our investigation show a noteworthy enhancement in the bioavailability of polyphenol compounds through increased extraction efficiency and bioactivity.

GRAPHICAL ABSTRACT
ზედა კიდურის მაკროამპუტაცია და რეპლანტაცია
Authors: Goginashvili Z. , Nonikashvili Z.
Published: September 2024

Proximal amputation of the arm represents itself one of the most challenging problems of the reconstructive surgery and rehabilitation therapy because of worse functional outcome compare with distal forearm or hand injuries. Amputation injuries according to the complexity of tissue damages are divided in 3 types: complete, incomplete and complex bone-soft tissue injuries. Amputation proximal to the elbow are frequently avulsion and crushing in nature. Replantation and revascularization surgery of amputated parts is one of the most difficult operations in reconstruction upper extremity surgery. We present a case report of successful proximal arm replantation.

ზედა კიდურის მაკრო (პროქსიმალური) ამპუტაცია რეკონსტრუქციული ქირურგიის და რეაბილიტაციური თერაპიის ერთ-ერთ ყველაზე რთულ პრობლემაა, რადგან, გამოსავლის მიხედვით, ხშირად მიიღება უფრო ცუდი ფუნქციური შედეგი, ვიდრე წინამხრის ან მტევნის დაზიანებებისას. ქსოვილების ამპუტაციური დაზიანების მიხედვით განარჩევენ სრულ, არასრულ და მძიმე ძვალ-რბილქსოვილოვან დაზიანებას. ამპუტირებული ნაწილების რეპლანტაციისა და რევასკულარიზაციის ქირურგია ზედა კიდურის რეკონსტრუქციის ერთ-ერთი ყველაზე რთული ოპერაციაა. წარმოგიდგენთ წარმატებული რეპლანტაციის კლინიკურ შემთხვევას.
ჰეპატოცეულულარული კარცინომის დიაგნოსტიკის თანამედროვე რადიოლოგიური მეთოდები
Authors: Sheliya V. , Urushadze O. , Nemsadze G.
Published: September 2024

The article analyzes the complex radiological approach to hepatocellular cancer. In particular, at the first stage, an ultra- sound study allows to assume of the presence of hepatocellular cancer, and in some cases to determine the final diagnosis. By analyzing the results of high-tech radiological studies, it is possible to confirm the detection of the malignant process and determine its boundaries, and the relationship with blood vessels and bile ducts. This information is crucial in determining the optimal tactics of operative intervention and reducing the risks of possible postoperative complications. In controversial and uncertain clinical cases, the last stage of research in the diagnostic process should be a transcutaneous biopsy of the suspicious area. Key words: Hepatocellular carcinoma, diagnosis, complex radiological approach

ნაშრომში გაანალიზებულია ჰეპატოცელულარული კიბოს დროს კომპლექსური რადიოლოგიური მიდგომა. კერძოდ, პირველ ეტაპზე ულტრაბგერითი კვლევა, რომელიც საშუალებას იძლევა გამოითქვას ვარაუდი ჰეპატოცელულარული კიბოს არსებობაზე, რიგ შემთხვევებში კი დადგინდეს საბოლოო დიაგნოზი. მაღალტექნოლოგიური რადიოლოგიური კვლევების შედეგების ანალიზით შესაძლებელია ავთვისებიანი პროცესის დადასტურებული გამოვლენა, მისი საზღვრების, სისხლძარღვებთან და სანაღვლე გზებთან ურთიერთობის დადგენა. ეს ინფორმაცია გადამწყვეტია ოპერაციული ჩარევის ოპტიმალური ტაქტიკის განსაზღვრაში და შესაძლო პოსტოპერაციული გართულებების რისკების შემცირებაში. სადაო და გაურკვეველ კლინიკურ შემთხვევებში სადიაგნოსტიკო პროცესში კვლევის ბოლო ეტაპი უნდა იყოს საეჭვო უბნის ტრანსკუტანური ბიოფსია.
ჰემანგიომის ექსპერიმენტულ მოდელზე კაპილარების ზრდის შემაკავებელი თერმოსტაბილური ცილოვანი კომპლექსის არაინვაზიური გზით მოქმედების შესაძლებლობის დადგენა
Authors: Ghibradze G. , Vadachkoria Z. , Niniashvili G. , Miqadze M. , Dzidziguri L. , Bakuridze A. , Dzidziguri D.
Published: September 2024

The study aimed to determine the appropriateness of using an endogenous growth inhibitory protein complex immobilized in a neutral hydrocarbon ointment base and the route of its administration into the body for the treatment of pediatric hemangiomas. Based on the experimental model of hemangioma (chicken comb) it was found that, unlike injections, the liver thermostable protein complex (TPC) immobilized in the neutral ointment, applied to the comb through a non-invasive method (rubbing) did not show the ability to inhibit capillary growth. In addition, it has been revealed, that TPC, like ethanol injection, inhibits the comb growth. According to the analysis of the data obtained and the results of the previously described study, it was concluded that the effectiveness of TPC is determined by the histoarchitectonic features of the comb skin. Compared to thin skin, relatively long retention and low diffusivity of pharmaceutical ingredients, including hepatic TPC, in the comb skin, minimize the effectiveness of TPC action. Therefore, the non-invasive route of TPC therapeutical application in the area of hemangioma localization is considered expedient, taking into consideration the histoarchitectonic peculiarities of the skin.

მიზანი: ჩატარებული კვლევის მიზანი იყო ბავშვთა ჰემანგიომების სამკურნალოდ ნეიტრალურ ნახშირწყალბადოვან მალამოში იმობილიზირებული ზრდის შემაკავებელი ენდოგენური ცილების კომპლექსის გამოყენების და ორგანიზმში შეყვანის გზების მიზანშეწონილობის დადგენა. კვლევის შედეგი: ჰემანგიომის ექსპერიმენტულ მოდელზე (მოზარდი ქათმის ბიბილო) დადგენილი იქნა, რომ ინექციისგან განსხვავებით, ბიბილოზე არაინვაზიური გზით გამოყენებული (შეზელვით დატანილი) ნეიტრალურ მალამოში იმობილიზირებული ღვიძლის თერმოსტაბილური ცილების კომპლექსი (თცკ) არ ავლენს კაპილარების ზრდის შეფერხების უნარს. ამავე დროს ნაჩვენებია, რომ თცკ-ს , ისევე როგორც ეთანოლის ინექცია, ბიბილოს ზრდის შეფერხებას იწვევს. ჩვენს მიერ მიღებული მონაცემების და ადრე აღწერილი კვლევის შედეგების ანალიზიდან გამომდინარეობს, რომ თცკ-ს ეფექტურობა შეჭიდულია ბიბილოს კანის ჰისტოარქიტექტონიკის თავისებურებებთან. თხელ კანთან შედარებით, ფარმაცევტული ინგრედიენტების, მათ შორის ღვიძლის თცკ-ს, ბიბილოს კანში შედარებით ხანგრძლივი დროით შეკავება და დაბალი დიფუზიის სიჩქარე, თცკ-ს მოქმედების ეფექტურობას მინიმუმამდე ამცირებს. დასკვნა: აქედან გამომდინარე, თერაპიული მიზნით, თცკ-ს არაინვაზიური გზით გამოყენება მიზანშეწონილია ჰემანგიომების ფორმის და ლოკალიზაციის ადგილზე კანის ჰისტოარქიტექტონიკის თავისებურებების გათვალისწინებით.
Análise dos óbitos perinatais na Região Metropolitana da Grande Vitória quanto a sua evitabilidade
Authors: Machado Ana Paula de Araújo
Published: September 2024

Objetivo: Analisar os óbitos perinatais da Região Metropolitana da Grande Vitória e sua classificação quanto a sua evitabilidade. Método: Estudo ecológico e descritivo, com abordagem quantitativa dividido em duas etapas. Onde a etapa I consiste na coleta dos dados secundários e utilização de técnicas de análise espacial para caracterização da mortalidade perinatal na Região Metropolitana da Grande Vitória e a etapa II refere-se à descrição do perfil epidemiológico da mortalidade perinatal sob a perspectiva da evitabilidade. Resultados: Os estudos revelaram que 92,69% dos óbitos são evitáveis, com maior concentração em óbitos evitáveis por adequada atenção ao parto, seguido de reduzíveis por adequado controle na gravidez (36,53). Apenas 4,69% dos óbitos foram classificados em não evitáveis e 2,62% como mal definidas. Conclusão: Os óbitos perinatais no estado do Espírito Santo, considerando as classificações de evitabilidade apresentaram maior ocorrência em decorrência de uma adequada atenção à mulher no parto.
Freire, Critical Pedagogy, and Culture Circles
Authors: Tafari Menelik
Published: September 2024

In celebration of our 20th Anniversary as a journal, the InterActions: UCLA Journal of Education and Information Studies editorial team opted to put forth a call on the work of Paulo Freire, critical pedagogy, and culture circles. It’s hard not to continue to see why critical pedagogy, a praxis of nurturing critical consciousness toward humanization and society towards justice, continues to be an essential aspect of education in P-20 settings in a healthy democracy. This issue was an opportunity to showcase contemporary work and research inspired by the legacy of Paulo Freire. Humanizing education is a collective practice in partnership with students and communities, redresses structures that maintain social inequalities and hierarchies of human life, and repairs the harm they have inflicted (Freire, 1970; Paris & Alim, 2017). The call to humanize education is especially urgent given our ongoing crises in education: unceasing youth gun violence and school shootings (Schildkraut & Muschert, 2019); the defunding divestment of public instruction and closures of public schools (George, 2024); the varied emergences COVID-19 variants and other looming pandemics (Pokhrel & Chhetri, 2021); corresponding deterioration of working conditions and livable wages for those working for our nation’s education systems (Schmitt & deCourcy, 2022; Souto-Manning & Melvin, 2021); book bans and bans misconstruing interpretations of Critical Race Theory, and acceptance and kindness towards LGBTQIA students, teachers, and their families (Morgan, 2022); proposed and implemented legislation to dehumanize queer, trans, nonbinary, and intersex children and parents (Goldberg & Abreu, 2024); and ongoing racialized hate and terror harming Black, Asian, and other nonwhite students, teachers, and their families, among others (Gillborn, 2006; Gover et al., 2020 ; Tuchinda, 2023; Wun, 2014). The urgency of critical pedagogy remains as relevant as ever.
Sustainable construction through the implementation of post-occupancy evaluation practices : a case study of RDP buildings in Mpumalanga
Authors:   , Simelane Nkuthalo John-Junior
Published: September 2024

Abstract Reconstruction and Development Programme (RDP) buildings in South Africa were promulgated to alleviate poverty and provide better social services for previously disadvantaged South Africans by allocating tax money for development projects. However, there is a growing concern about the quality of housing developed under the RDP programmes. Post-occupancy evaluation is one of the measures that has been proposed to ensure the quality of these buildings is well understood and improved upon. The study sought to investigate the current status of post-occupancy evaluation (POE), understand the barriers to effective implementation of POE, and investigate the critical success factors and the benefits of POE in Mpumalanga Province, South Africa. To achieve this objective, the study adopted a quantitative approach utilising a questionnaire survey to expedite the collection of data, which was then analysed descriptively and inferentially. The study population was purposively selected due to the specific nature of the data collected. Professionals employed by the Department of Human Settlement in Mpumalanga and involved in the construction of the RDP building in Mpumalanga province provided the data. The findings indicate that the critical success factors for effective implementation of post-occupancy evaluation are: participation and commitment; leadership; education and skills; benchmarks and indicators; top management support; availability of resources; POE information management; and effective feedback. With respect to barriers that affect the effective implementation of the POE, the study identified the following: lack of adequate resources; lack of knowledge of POE procedures; lack of awareness of POE; lack of top management support; lack of coordination by departments; lack of owner’s knowledge of POE and benefits; and POE is not integrated into the scope of work of the facility department. The study posited that POE could provide the basis for necessary changes, help increase design know-how, determine building defects, increase building performance, reduce maintenance costs, and increase occupants’ satisfaction.
Evaluation of Managerial Tools for Preventing and Controlling Cyber-Loafing Among Administrative Staff: A Case Study of a Selected Municipality in KwaZulu-Natal, South Africa
Authors: Mkhize Nonhlanhla , Mthalane Peggy , Nyide Celani
Published: September 2024

Organizations have implemented systems to address cyber-loafing, but these measures are often insufficient to completely prevent employees from engaging in such activities. Consequently, the role of managers in mitigating cyber-loafing becomes crucial. However, the specific strategies employed by managers to reduce and control cyber-loafing remain unclear. This paper aims to evaluate the tools used by managers to prevent and control cyber-loafing among administrative staff in the workplace. The paper proposes effective measures to mitigate this phenomenon. The study employed a mixed-method approach, combining qualitative and quantitative research methodologies. Purposive sampling was utilized, with a sample size of 156 administrative staff for the quantitative study and 11 managers and supervisors for the qualitative segment. The quantitative data revealed that administrative staff use company internet and computers to perform cyber-loafing activities. Managers and supervisors can apply various tools, including software monitoring systems, internet policies, and employee monitoring, to control cyber-loafing activities. The General Deterrence Theory (GDT) framework was used to explain the tools used to curb cyber-loafing in the study under investigation. Additionally, other deterrent mechanisms and organisational control measures are identified and discussed in specific instances. This research contributes to a comprehensive understanding of the role of managers in addressing cyber-loafing and proposes practical tools and strategies that can be implemented by organisations to effectively mitigate this phenomenon. By enhancing managerial approaches to cyber-loafing, organisations can improve productivity and ensure a secure work environment.
APLICAÇÃO DA LEI MARIA DA PENHA ÀS MULHERES TRANSEXUAIS: APLICAÇÃO DA QUALIFICADORA
Authors: Júnior Omar Luiz da Costa
Published: September 2024

This study aims to analyze the application of the Maria da Penha Law in cases of violence against transgender women. The methodology used in this study involved bibliographic and documentary research, where the foundation for the work is based on legal doctrine, laws, and official publications. It is noteworthy that the nature of the research qualifies as qualitative, with the search for relevant information on the proposed theme being analyzed in a broad and comprehensive manner. Regarding the research within the scope of national law, the presence of the topic in laws, doctrines, and case law related to the theme was observed. Additionally, documentary research was conducted to expand the reach of the subject, aiming to optimize the achievement of the study’s objectives. At the conclusion of the study, it is possible to affirm the applicability of the Maria da Penha Law to cases of violence against transgender women, based on gender identity, with the identification as a woman being sufficient for the application of this legal provision. This understanding has already been established by the Superior Court of Justice (STJ), though the inclusion of this provision in the letter of the law is still necessary.
Pengembangan Media Flashcard Huruf Hijaiyyah Berbasis Augmented Reality Pada Pembelajaran PAI
Authors: Armila Dian , Elsa Elsa , Mariada Sitti , Efendy Vindy Nabilah , Yamin Muh
Published: September 2024

Penelitian ini bertujuan untuk: 1) mengembangkan media flashcard berbasis augmented reality sebagai media pembelajaran Pendidikan Agama Islam dalam materi huruf hijaiiyah untuk kelas 1 fase A tunarungu di SLB 1 Kota Palopo. 2) mengetahui kelayakan media flashcard berbasis augmented reality sebagai media pembelajaran Pendidikan Agama Islam dalam materi huruf hijaiyyah untuk kelas 1 Fase A tunarungu di SLB 1 Kota Palopo. Metode penelitian yang digunakan yaitu penelitian pengembangan (Research and Development) dengan menggunakan model ADDIE. Hasil Validasi Produk Uji kelayakan flashcard berbasis augmented reality pada materi huruf hijaiyyah dilakukan oleh dosen ahli media. Kelayakan media flashcard berbasis augmented reality yaitu diperoleh frekuensi dengan jumlah 97, dan presentase 97,72% maka media flashcard berbasis augmented reality layak untuk digunakan.
Pemanfaatan Media Pembelajaran Interaktif Berbasis Kahoot dalam Meningkatkan Minat Belajar Siswa
Authors: Saputro Ferry Cahyo , Mansur Hamsi , Utama Agus Hadi
Published: September 2024

Penelitian ini bertujuan untuk mengetahui media pembelajaran interaktif berbasis kahoot dapat meningkatkan minat siswa. Kahoot merupakan salah satu media pembelajaran online yang berisikan kuis dan game. Media pembelajaran interaktif seperti kahoot dapat digunakan dalam kegiatan belajar mengajar seperti mengadakan pre-test, latihan soal, penguatan materi, remedial, dan lainnya. Tujuan dari penelitian ini adalah untuk mengetahui pemanfaatan media pembelajaran Kahoot dalam proses pembelajaran, dan untuk mengetahui keefektifan media pembelajaran Kahoot dalam meningkatkan minat belajar. Metode penelitian menggunakan tinjauan pustaka (Library Research) dari 20 jurnal referensi online. Hasil Penelitian menunjukkan bahwa aplikasi Kahoot sangat efektif dalam meningkatkan minat belajar siswa. Hal ini dikarenakan fitur dari Kahoot yang mendukung pembelajaran online. Dengan adanya fitur diskusi hingga quiz yang dijadikan literasi baru dalam kegiatan pembelajaran, membuat pembelajaran  menjadi sangat digemari oleh generasi digital. Pembelajaran yang menjalankan fungsi atensi sehingga dapat meningkatkan efektifitas dalam proses belajar.
Efektivitas Model Pembelajaran Diskusi Kelompok Terhadap Literasi Matematika Siswa
Authors: Muhammad Thohir Mahfudzh  , Rahmawati Noviana Dini , Kurniawati Annisa
Published: September 2024

Penelitian ini membahas tentang efektivitas model pembelajaran diskusi kelompok terhadap literasi matematika siswa pada materi persamaan lingkaran siswa kelas XI KGS 2 SMKN 7 Semarang. Diskusi kelompok yang diterapkan dalam penelitian adalah dengan memberikan partisipasi aktif siswa dalam menggunakan media powerpoint dimana siswa diberikan kebebasan dalam bereksplorasi membuat sub-materi persamaan lingkaran yang telah diberikan guru kepada masing-masing kelompok. Penelitian ini dilakukan untuk mengetahui tingkat literasi matematika siswa setelah melaksanakan model pembelajaran diskusi kelompok. Jenis penelitian ini merupakan jenis penelitian kuantitatif dengan menggunakan Pre Experimental Designs – One Group Pretest Posttest Designs. Pemilihan sampel dalam penelitian ini menggunakan teknik sampel jenuh, di mana seluruh siswa kelas XI SMKN 7 Semarang dijadikan sampel. Sedangkan dalam pengambilan data dilakukan dengan menggunakan tes literasi meliputi pretest-posttest dan dokumentasi. Penelitian ini menemukan bahwa efektivitas model pembelajaran diskusi kelompok berpengaruh secara signifikan terhadap literasi matematika siswa dengan taraf signifikansi 0,001 menggunakan uji Wilcoxon.
Virtual Platform for Museum: A Case Study with Oman Across Ages Museum
Authors: Rehab Salim AL Khatri  , Maitha Hamood AL Hashami  , S. M. Emdad Hossain
Published: September 2024

Abstract: The Virtual Platform for Oman across Ages Museum (VPOAAM) is a project initiated in 2015 in Manah, Al Dakhiliyah Governorate, aiming to highlight the unique qualities of the Sultanate of Oman and its features, ancient history, and Renaissance. The project, designed in the shape of mountains, was initiated by His Majesty Sultan Haitham bin Tariq the Great. The project is situated on a 300,000 square meter land area with a building area of 66,591 square meters, designed in the shape of mountains. The late Sultan Qaboos bin Said laid the foundation stone for the project, which inspires architectural innovation and showcases the Sultanate of Oman's qualitative transition from its historical splendors to its bright present. Visitors can explore the museum's art and historical collection online, with interactive virtual tours allowing them to interact and learn about art pieces and exhibits. The museum also contains a wide range of multimedia, including images, videos, written texts, and audio information, allowing visitors to interact with antiques and artistic exhibits. These are a glance of the museum we taken as case study to develop the platform with the approval and kind support from the competent authority of the museum. After successful completion of the research project; the output will be the same museum in a virtual platform. This research conducted with a number of items among thousands of physical items in the museum. And the result shows a significant remark to continue and complete the virtual museum platform for the stated museum.
Financial Accountability, Resources and Competence of Proprietors, and Performance of Private Universities in Uganda
Authors: Habaasa Ivan Akatwijuka  , Denis Sekiwu  , Abanis Turyahebwa  , Cliff Richard Kikawa
Published: September 2024

Abstract: The purpose of this study was to examine the effect of financial accountability on performance of private universities in Uganda. The study is guided by a hypothesis, that financial accountability have a statistically significant effect on the performance of private universities. The study taps into the voices of university stakeholders seeking their opinion on how to address the university performance challenges and 162 sample units were selected and participated in the study.  The study follows the post-positivism philosophical stance which calls for the use of mixed techniques, while a descriptive, analytical and cross-sectional research design was utilized. Data was analyzed using two statistical software programs: Analysis of Moments of Structures (AMOS) for structural equation modeling (SEM), and SPSS was used for preliminary data analysis. In contrast, content analysis was employed in the qualitative approach. The results were presented using, Scatter plots, regression analysis, correlation coefficients and percentage tables while SEM was used to perform confirmatory factor analysis, principle component analysis, variance analysis, correlation coefficients and regression analysis. There was positive significant correlation between the financial accountability and the University performance (r = 0.641, P<0.01). The results further indicate that financial accountability individually explains 41.1% (R Square Change = .411) of the variations in University performance. The study found out that all dimensions of financial accountability exhibit a positive and significant relationship with performance. Hence value for money, financial reporting and audited accounts can ensure transparent financial transactions avoid diversion of funds, create robust strategies for mobilizing resources and save funds that can be utilized to improve financial sustainability and education quality in private universities. The study recommends that private universities should establish transparent financial reporting, promote active engagement of proprietors in financial decision making and resource mobilization, adherence to fiscal responsibilities, and effective financial governance as well as training proprietors in university financial management.
Vilniaus šiuolaikinio meno (institucijų) sistemos „konservatyvusis posūkis“ po 2010 metų: socioideologinis aspektas
Authors: Šapoka Kęstutis
Published: September 2024

Nepriklausomybės laikotarpio Vilniaus šiuolaikinio meno (institucijų) sistemoje įprasta ideologiją slėpti po alegorijomis ir metaforomis. Tad straipsnio tikslas ‒ eksplikuoti šio laikotarpio Vilniaus šiuolaikinio meno sistemoje dominuojančią ideologiją išryškinant esminius jos kaitos riboženklius. Tuo tikslu pasitelkus Karlo Mannheimo ir Michaelio Freedeno ideologijų tyrimą, taip pat remiantis Mariaus P. Šaulausko bei Zenono Norkaus pokomunistinės transformacijos Lietuvoje tyrimais analizuojamos Vilniaus šiuolaikinio meno (institucijų) sistemos diskurso kvaziideologinės preferencijos. Tyrimas parodė, kad oficialios konservatyvios kultūros politikos terpėje Vilniaus šiuolaikinio meno (institucijų) sistema ir ją reprezentuojantis diskursas nuo 1992 m. iki maždaug 2010 m. reprezentavo (neo)liberalią ideologiją. Tai buvo daroma netiesiogiai ‒ atviros ideologinės retorikos vengta, ji buvo išreikšta arba maskuojama metaforomis ar tiesiog labai aptaki. Nuo 2010 m. fiksuotinas Vilniaus šiuolaikinio meno (institucijų) sistemos (diskurso) „konservatyvusis posūkis“, kaip globalios konservatyvios slinkties padarinys. Ideologinio konservatyvėjimo procesai dar nėra pasibaigę, todėl po 2010 m. Vilniaus šiuolaikinio meno sistemoje vykstanti kaita kol kas negali būti vertinama vienareikšmiškai.
O USO EXCESSIVO DAS TECNOLOGIAS DIGITAIS E SEUS IMPACTOS NAS RELAÇÕES PSICOSSOCIAIS EM DIFERENTES FASES DO DESENVOLVIMENTO HUMANO
Authors: Nós Angélica
Published: September 2024

O avanço tecnológico tem afetado diretamente a vida de crianças, adolescentes, adultos e idosos de todo o mundo. Com esta constatação, o presente artigo, teve por objetivo apresentar os impactos do uso excessivo das tecnologias digitais, nas relações psicossociais em diferentes fases do desenvolvimento. Realizou-se uma revisão de literatura narrativa a partir de artigos científicos disponíveis nas bases eletrônicas de dados Scielo, Pepsic, Google Acadêmico e livros. Compreende-se que o uso excessivo das tecnologias por crianças e adolescentes acarretam prejuízos na aprendizagem e também nas relações sociais, já nas fases adulta e idosa os prejuízos associam-se em grande escala com as relações sociais não virtuais, assemelhando-se a um isolamento social. Diante disso, verifica-se a necessidade da realização de mais estudos sobre a temática, principalmente nos estágios adulto e idoso, pois há pouco material bibliográfico e poucas pesquisas empíricas voltadas para este público.
COMO A FABER CASTELL COORDENA SEUS SISTEMAS DE: GESTÃO DA QUALIDADE, GESTÃO DA LOGÍSTICA E GESTÃO AMBIENTAL COM BASE NA CERTIFICAÇÃO DAS ISOS 9001-2000 E 14001
Authors: Brito Sarah Gabrielle Cordeiro de , Silva Luíza Gabriella de Souza , Nascimento Maria Clara dos Santos , Saraiva Piedley Macedo
Published: September 2024

Neste artigo, discute-se a importância das normas ISO 9001 e ISO 14001 para as empresas, com foco na Faber Castell. Explora-se como essas normas contribuem para o sistema de gestão da qualidade, logística e ambiental da empresa. Também é abordada a evolução histórica da indústria, desde a Revolução Industrial até os conceitos modernos de gestão humanística e sociotécnica. Analisa-se como a Faber Castell demonstra comprometimento com a qualidade de seus produtos, envolvimento dos colaboradores e sustentabilidade ambiental. No entanto, identificam-se oportunidades de aprimoramento, como a implementação de métodos estruturados de feedback dos clientes e a definição de metas ambientais específicas. Conclui-se que a adoção sistemática das normas ISO 9001 e ISO 14001 pode fortalecer a posição da Faber Castell como uma empresa responsável e consciente, promovendo impactos positivos na sociedade e no meio ambiente.
AUSÊNCIA DE FISCALIZAÇÃO TRABALHISTA E CONDIÇÕES ANÁLOGAS À ESCRAVO
Authors: Silva Herica Jesus da , Resende Adriano de Oliveira
Published: September 2024

O presente trabalho tem como objetivo analisar a fiscalização trabalhista, com foco nos municípios do interior, especialmente em relação aos casos de trabalho análogo à escravidão. Com base em pesquisa bibliográfica, consulta a artigos, leis e outras fontes relevantes, pretende- se explorar a falta de fiscalização em pequenas cidades do interior e a exploração no ambiente de trabalho. O termo "fiscalizar" refere-se a inspecionar e verificar, e neste contexto, destaca-se a importância da observância das normas legais. No Brasil, as relações de trabalho são reguladas pela Consolidação das Leis do Trabalho (CLT), que estabelece normas para proteger o trabalhador. A Secretaria do Trabalho, por meio da Subsecretaria de Inspeção do Trabalho (SIT), é responsável por formular e orientar as diretrizes da fiscalização trabalhista. É dever da SIT, um órgão de grande relevância social e essencial para o funcionamento do Estado Brasileiro, desenvolver regulamentos para as normas de segurança e saúde dos trabalhadores. Além disso, realizou-se uma análise das atividades do fiscal do trabalho no combate ao trabalho escravo. Também se discute o atual quadro de servidores que atuam na fiscalização das irregularidades trabalhistas, questionando o reduzido número de fiscais efetivos, o que contraria a Convenção nº 81 da Organização Internacional do Trabalho (OIT), da qual o Brasil é signatário.
Beyond self-healing: stabilizing and destabilizing photochemical adjustment of the ozone layer
Authors: Match Aaron , Gerber Edwin P. , Fueglistaler Stephan
Published: September 2024

Abstract. The ozone layer is often noted to exhibit self-healing, whereby depletion of ozone aloft induces ozone increases below, explained as resulting from enhanced ozone production due to the associated increase in ultraviolet (UV) radiation below. Similarly, ozone enhancement aloft can reduce ozone below (reverse self-healing). This paper considers self-healing and reverse self-healing to manifest a general mechanism we call photochemical adjustment, whereby ozone perturbations lead to a downward cascade of anomalies in UV and ozone. Conventional explanations for self-healing imply that photochemical adjustment is stabilizing, damping perturbations towards the surface. However, photochemical adjustment can be destabilizing if the enhanced UV disproportionately increases the ozone sink, as can occur if the enhanced UV photolyzes ozone to produce atomic oxygen, which speeds up catalytic destruction of ozone. We analyze photochemical adjustment in two linear ozone models (Cariolle v2.9 and LINOZ), finding that (1) photochemical adjustment is destabilizing above 40 km in the tropical stratosphere and (2) self-healing often represents only a small fraction of the total photochemical stabilization. The destabilizing regime above 40 km is reproduced in a much simpler model: the Chapman cycle augmented with destruction of O and O3 by generalized catalytic cycles and transport (the Chapman+2 model). The Chapman+2 model reveals that photochemical destabilization occurs where the ozone sink is more sensitive than the source to perturbations in overhead column ozone, which is found to occur when the window of overlapping absorption by O2 and O3 is optically unsaturated, i.e., when overhead slant column ozone is below approximately 1018 molec. cm−2.
Distinctive aerosol–cloud–precipitation interactions in marine boundary layer clouds from the ACE-ENA and SOCRATES aircraft field campaigns
Authors: Zheng Xiaojian , Dong Xiquan , Xi Baike , Logan Timothy , Wang Yuan
Published: September 2024

Abstract. The aerosol–cloud–precipitation interactions within the cloud-topped marine boundary layer (MBL) are examined using aircraft in situ measurements from Aerosol and Cloud Experiments in the Eastern North Atlantic (ACE-ENA) and Southern Ocean Clouds, Radiation, Aerosol Transport Experimental Study (SOCRATES) field campaigns. SOCRATES clouds exhibit a larger number concentration and smaller cloud droplet effective radius (148.3 cm−3 and 8.0 µm) compared to ACE-ENA summertime (89.4 cm−3 and 9.0 µm) and wintertime clouds (70.6 cm−3 and 9.8 µm). The ACE-ENA clouds, especially during the winter, feature stronger drizzle formation via droplet growth through enhanced collision–coalescence that is attributed to a relatively cleaner environment and deeper cloud layer. Furthermore, the aerosol–cloud interaction (ACI) indices from the two aircraft field campaigns exhibit distinct sensitivities, indicating different cloud microphysical responses to aerosols. The ACE-ENA winter season features relatively fewer aerosols, which are more likely activated into cloud droplets under the conditions of sufficient water vapor availability and strong turbulence. The enriched aerosol loading during ACE-ENA summer and SOCRATES generally leads to smaller cloud droplets competing for the limited water vapor and exhibiting a stronger ACI. Notably, the precipitation susceptibilities are stronger during the ACE-ENA than during the SOCRATES campaigns. The in-cloud drizzle behavior significantly alters sub-cloud cloud condensation nuclei (CCN) budgets through the coalescence-scavenging effect and, in turn, impacts the ACI assessments. The results of this study can enhance understanding and aid in future model simulation and assessment of the aerosol–cloud interaction.
The behaviour of charged particles (ions) during new particle formation events in urban Leipzig, Germany
Authors: Rowell Alex , Brean James , Beddows David C. S. , Shi Zongbo , Kumar Avinash , Rissanen Matti , Dal Maso Miikka , Mettke Peter , Weinhold Kay , Merkel Maik , Harrison Roy M.
Published: September 2024

Abstract. Air ions are electrically charged particles in air. They are ubiquitous in the natural environment and affect the Earth's radiation budget by accelerating the formation and growth of new aerosol particles. Despite this, few datasets exist exploring these effects in the urban environment. A neutral cluster and air ion spectrometer was deployed in Leipzig, Germany, to measure the number size distribution of charged particles from 0.8 to 42 nm, between 27 July and 25 August 2022. Following previous analyses, charged particles were classified into small (0.8–1.6 nm), intermediate (1.6–7.5 nm), and large (7.5–22 nm) fractions by mass diameter, and their mean concentrations (sum of positive and negative polarities) during the campaign were 405, 71.6, and 415 cm−3, respectively. The largest peaks in intermediate and large ions were explained by new particle formation (NPF), with intermediate ions correlating well with sulfuric acid dimer. Smaller morning and evening peaks were coincident with black carbon concentrations and attributed to primary emissions. NPF events, observed on 30 % of days, coincided with intense solar radiation and elevated sulfuric acid dimer. Small charged particles were primarily associated with radioactive decay and highest during the early hours, and they are unrelated to primary emissions or NPF. The apparent contributions of charged particles to 3 and 7.5 nm particle formation rates were 5.7 % and 12.7 %, respectively, with mean growth rates of 4.0 nm h−1 between 3–7.5 nm and 5.2 nm h−1 between 7.5 and 22 nm. The ratio of charged to total particle formation rates at 3 nm suggests a minor role for charged particles in NPF. We conclude that NPF is a primary source of > 3 nm ions in our data, with primary emissions being the major source in the absence of NPF.
Benchmarking KDP in Rainfall: A Quantitative Assessment of Estimation Algorithms Using C-Band Weather Radar Observations
Authors: Aldana Miguel , Pulkkinen Seppo , von Lerber Annakaisa , Kumjian Matthew R. , Moisseev Dmitri
Published: September 2024

Abstract. Accurate and precise KDP estimates are essential for radar-based applications, especially in quantitative precipitation estimation and radar data quality control routines. The accuracy of these estimates largely depends on the post-processing of the radar's measured ΦDP, which aims to reduce noise and backscattering effects while preserving fine-scale precipitation features. In this study, we evaluate the performance of several publicly available KDP estimation methods implemented in open-source libraries such as PyArt and Wradlib, and the method used in the Vaisala weather radars. To benchmark these methods, we employ a polarimetric self-consistency approach that relates KDP to reflectivity and differential reflectivity in rain, providing a reference self-consistency KDP  (KDPSC ) for comparison. This approach allows for the construction of the reference KDP observations that can be used  to assess the accuracy and robustness of the studied KDP estimation methods. We assess each method by quantifying uncertainties using C-band weather radar observations where the reflectivity values ranged between 20 and 50 dBZ. Using the proposed evaluation framework we could define optimized parameter settings for the methods that have user-configurable parameters. Most of such methods showed significant reduction in the estimation errors after the optimization with respect to the default settings. We have found significant differences in the performances of the studied methods, where the best performing methods showed smaller normalized biases in the high reflectivity values (i.e., ≥ 40 dBZ) and overall smaller normalized root mean squared errors across the range of reflectivity values.
Fast and sensitive measurements of sub-3 nm particles using Condensation Particle Counters For Atmospheric Rapid Measurements (CPC FARM)
Authors: Cheng Darren , Amanatidis Stavros , Lewis Gregory S. , Jen Coty N.
Published: September 2024

Abstract. New particle formation (NPF) is the atmospheric process whereby gas molecules react and nucleate to form detectable particles. NPF has a strong impact on Earth’s radiative balance as it produces roughly half of global cloud condensation nuclei. However, time resolution and sensitivity of current instrumentation are inadequate in measuring the size distribution of sub‑3 nm particles, the particles critical for understanding NPF. Here we present the Condensation Particle Counters For Atmospheric Rapid Measurements (CPC FARM), a method to measure the concentrations of freshly nucleated particles. The CPC FARM consists of five CPCs operating in parallel, each configured to operate at different detectable particle sizes between 1–3 nm. This study explores two methods to calculate the size distribution from the differential measurements across the CPC channels. The performance of both inversion methods were tested against the size distribution measured by a pair of stepping particle mobility sizers (SMPS) during an ambient air sampling study in Pittsburgh, PA. Observational results indicate that the CPC FARM is more accurate with higher time resolution and sensitivity in the sub-3 nm range compared to the SMPS.
Environmental controls of rapid terrestrial organic matter mobilization to the western Laptev Sea since the last deglaciation
Authors: Lin Tsai-Wen , Tesi Tommaso , Hefter Jens , Grotheer Hendrik , Wollenburg Jutta , Adolphi Florian , Bauch Henning , Nogarotto Alessio , Müller Juliane , Mollenhauer Gesine
Published: September 2024

Abstract. Arctic permafrost stores vast amounts of terrestrial organic matter (terrOM). Under warming climate conditions, Arctic permafrost thaws, releasing aged carbon and potentially impacting the modern carbon cycle. We investigated the characteristics of terrestrial biomarkers, including n-alkanes, fatty acids, and lignin phenols, in marine sediment cores to understand how the sources of terrOM transported to the ocean change in response to varying environmental conditions such as sea-level rise, sea ice coverage, inland climate warming, and freshwater input. We examined two sediment records from the western Laptev Sea (PS51/154 and PS51/159) covering the past 17.8 kyr. Our analyses reveal three periods with high mass accumulation rates (MARs) of terrestrial biomarkers, from 14.1 to 13.2, 11.6 to 10.9, and 10.9 to 9.5 kyr BP. These MAR peaks revealed distinct terrOM sources, likely in response to changes in shelf topography, rates of sea-level rise, and inland warming. By comparing periods of high terrOM MAR in the Laptev Sea with published records from other Arctic marginal seas, we suggest that enhanced coastal erosion driven by rapid sea-level rise during meltwater pulse 1A (mwp-1A) triggered elevated terrOM MAR across the Arctic. Additional terrOM MAR peaks coincided with periods of enhanced inland warming, prolonged ice-free conditions, and freshwater flooding, which varied between regions. Our results highlight regional environmental controls on terrOM sources, which can either facilitate or preclude regional terrOM fluxes in addition to global controls.