bluuebunny/crossref_metadata_2025_split huggingface dataset:
Aktivitas Antioksidan Ekstrak Astaxanthin dari Limbah Kulit dan Kepala Udang Dogol (Metapenaeus ensis)
Authors: Rahmalia Winda , Adhitiyawarman Adhitiyawarman , Prayitno Dwi Imam , Lubis Yosef Novem Batistuta 
Published: August 2024

Astaxanthin is a carotenoid derivative compound with various benefits, one of which is as an antioxidant, making astaxanthin applicable in drugs and cosmetics. Astaxanthin is discoverable in various sources, with shrimp as its main source. This study aims to determine the antioxidant activity of astaxanthin extracted from shrimp shell and head wastes. Extraction was carried out using the soxhletation method, followed by saponification to obtain free astaxanthin. Astaxanthin in extract before and after saponification were identified using thin-layer chromatography (TLC) and UV-Vis spectrophotometry. Antioxidant activity assay was carried out in five variations of sample concentrations using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. Extraction of shrimp shell and head wastes resulted in an oil yield percentage of 1.02 and 3.05 % of dry mass in 60 g of shrimp shells, respectively. Identification results showed astaxanthin content in extracts after saponification were higher than that before saponification. There are three thin layer chromatography (TLC) separation spots and two UV-Vis absorption peaks in extracts before and after saponification. Antioxidant activity assay results (IC50) of shrimp shell extract before and after saponification showed antioxidant activity of 572.0 and 186.6 mg/L, respectively. Astaxanthin merupakan senyawa turunan karotenoid dengan beragam manfaat, salah satunya sebagai antioksidan, sehingga membuat astaxanthin dapat diaplikasikan dalam obat-obatan dan kosmetik. Astaxanthin dapat ditemukan dalam berbagai sumber, dengan sumber utama adalah udang. Penelitian ini bertujuan untuk menentukan aktivitas antioksidan astaxanthin yang diekstraksi dari limbah kulit dan kepala udang. Ekstraksi dilakukan dengan metode soxhletasi, dilanjutkan dengan saponifikasi untuk mendapatkan astaxanthin bebas. Hasil ekstraksi dan saponifikasi diidentifikasi astaxanthinnya menggunakan kromatografi lapis tipis (KLT) dan spektrofotometri UV-Vis. Uji aktivitas antioksidan dilakukan pada lima variasi konsentrasi sampel menggunakan metode 2,2-difenil-1-pikrilhidrazil (DPPH). Ekstraksi limbah kulit dan kepala udang menghasilkan rendemen masing-masing sebesar 3,05 dan 1,02% massa kering dari 60 g kulit udang. Hasil identifikasi menunjukkan kadar astaxanthin dari ekstrak setelah saponifikasi lebih tinggi daripada sebelum saponifikasi. Terdapat tiga spot pemisahan kromatografi lapis tipis (KLT) serta dua puncak serapan UV-Vis pada ekstrak sebelum dan setelah saponifikasi. Hasil uji aktivitas antioksidan (IC50) kulit udang sebelum dan setelah saponifikasi masing-masing adalah 572,000 dan 186,583 mg/L.
Ketone monoester plus high‐dose glucose supplementation before exercise does not affect immediate post‐exercise erythropoietin concentrations versus glucose alone
Authors: Howard Emily E. , Allen Jillian T. , McNiff Julie L. , Small Stephanie D. , O'Fallon Kevin S. , Margolis Lee M. 
Published: August 2024

AbstractThe objective of this study was to examine the effect of consuming ketone monoester plus a high dose of carbohydrate from glucose (KE + CHO) on the change in erythropoietin (EPO) concentrations during load carriage exercise compared with carbohydrate (CHO) alone. Using a randomized, crossover design, 12 males consumed KE + CHO (573 mg KE/kg body mass, 110 g glucose) or CHO (110 g glucose) 30 min before 4 miles of self‐paced treadmill exercise (KE + CHO:51 ± 13%, CHO: 52 ± 12% V̇O2peak) wearing a weighted vest (30% body mass; 25 ± 3 kg). Blood samples for analysis were obtained under resting fasted conditions before (Baseline) consuming the KE + CHO or CHO supplement and immediately after exercise (Post). βHB increased (p < 0.05) from Baseline to Post in KE + CHO, with no change in CHO. Glucose and glycerol increased (p < 0.05) from Baseline to Post in CHO, with no effect of time in KE + CHO. Insulin and lactate increased (p < 0.05) from Baseline to Post independent of treatment. EPO increased (p < 0.05) from Baseline to Post in KE + CHO and CHO with no difference between treatments. Although KE + CHO altered βHB, glucose, and glycerol concentrations, results from this study suggest that KE + CHO supplementation before load carriage exercise does not enhance immediate post‐exercise increases in EPO compared with CHO alone.
Effectuation, Causation and Bricolage; Entrepreneurial Orientation in the Face of Crisis, a Perspective from Developing Countries
Authors: Sunguh Kenneth Khavwandiza , Yi Xu 
Published: August 2024

Abstract
While previous studies on individual entrepreneurial orientation have evolved more from environmental, social and cultural features, far less attention has been dedicated to personal agency factors, especially during the crisis period of post COVID-19 pandemic. Relying on personal agency theory and the entrepreneurial cognitive logic concept, this study investigates how entrepreneur’s internal locus of control affect their individual entrepreneurial orientation, particularly during periods of crisis and scarcity-post COVID-19 pandemic. Data were collected from 500 small and medium scale entrepreneurs via an online questionnaire and analyzed using partial least square (PLS-SEM) methodology. The findings show that causation, bricolage and effectuation’s affordable loss and flexibility, which are most responsive to internal locus of control, significantly impact individual entrepreneurial orientation. However, no evidence has been found on how gender, education level and education background impacts the internal locus of control to promote entrepreneurial orientation. Finally, the paper highlights the relevance of considering personal agency factors, namely internal locus of control, for policy makers, especially those involved in institutions of learning and government ministries, to boost citizens perceptions and entrepreneurial orientation and behaviour particularly in developing countries.
Outcomes and complications of hemodialysis in patients with renal cancer following bilateral nephrectomy
Authors: Shen Bing , Luo Feng , Yuan Nan , Yin Jiaming , Chai Yalin , Sun Lijie , Zhang Lin , Luo Congjuan 
Published: August 2024

Abstract

Objectives
The management of patients undergoing bilateral nephrectomy for renal cancer presents significant challenges, particularly in addressing hypotension, anemia, and tumor recurrence during hemodialysis.

Case presentation
A patient diagnosed with renal clear cell carcinoma in 2009 was followed until his demise in June 2022, with detailed documentation of symptoms, signs, laboratory results, diagnosis, and treatment. In the presented case, post-nephrectomy, the patient experienced frequent hypotension and anemia during dialysis, improving with erythropoietin-stimulating agents and subsequently with rosuvastatin. Later, multiple metastases were detected, correlating with normalized blood pressure and hemoglobin.

Literature review
A literature search up to September 2023 was also conducted, gathering data on hypotension, anemia, and tumor recurrence post-nephrectomy. Literature analysis of six cases revealed a 100% tumor recurrence rate in elderly patients (>50 years).

Conclusion
Treatment of anemia in bilateral nephrectomy patients warrants consideration of medication-induced tumor recurrence, highlighting early kidney transplantation to avoid adverse reactions like hypotension.
Discourse on Reporting the Palestine-Israel Conflict “Inclusion Strategy in the News of the Shooting of Shireen Abu Akleh (Al Jazeera Journalist) on BBC Arabic Newspaper”
Authors: Nawawi Hasby Achmad , Kulsum Umi 
Published: August 2024

This study aims to analyze the inclusion strategy in constructing the news about the shooting of Al Jazeera journalist Shireen Abu Akleh. The method used is descriptive analysis with the object of research, namely news texts "شيرين أبو عاقلة: إدانات واسعة ودعوات لإجراء تحقيق في مقتل مراسلة الجزيرة أثناء تغطيتها لغارة إسرائيلية regarding the shooting of Shireen Abu Akleh (Palestinian-American Journalist) on BBC Arabic on May 11, 2022. The data was collected through document review method using the close reading techniques. In analyzing the data, this research applies the theory of inclusion in critical discourse analysis developed by Theo van Leeuwen. The results of the analysis show that BBC Arabic attempted to provide comprehensive and balanced coverage of Shireen Abu Akleh by focusing on the victim. However, this study also highlights the possible interests in the presentation of the news presented in the construction of the news. By identifying such patterns through inclusion strategies, this research provides a reminder to readers of the importance of critically observing news, considering context, and understanding potential biases that may be included in the presentation of news by international media such as BBC Arabic.
Correlation of RND efflux pump expression and AdeRS mutations in tigecycline-resistant Acinetobacter baumannii from Thai clinical isolates
Authors: Boonsilp Siriphan , Homkaew Anchalee , Wongsuk Thanwa , Thananon Konrawee , Oonanant Worrapoj 
Published: August 2024

AbstractTigecycline-resistant Acinetobacter baumannii (TRAB) is increasing in Thailand, complicating antibiotic treatment due to limited antibiotic options. The specific resistance mechanism behind tigecycline resistance is still unclear, necessitating further investigation. We investigated the presence of OXA-type carbapenemases, the antimicrobial susceptibility profile, the inhibitory effect of carbonyl cyanide m-chlorophenylhydrazone (CCCP) on tigecycline susceptibility, the expression levels of RND-type efflux pumps and amino acid substitutions within a two-component regulatory system on 30 Thai clinical isolates. Our investigation revealed that most of (73.3%) TRAB isolates expressed at least one member of the Ade efflux pumps. The adeB was most frequently expressed (63.3%), followed by adeR (50%), adeS (43.3%), adeJ (30%) and adeG (10%). Overexpression of the AdeABC was associated with increased tigecycline minimum inhibitory concentrations (MICs) and amino acid substitutions within the AdeRS. Notably, isolates harbouring simultaneous mutations in these genes exhibited an increase in the transcription level of the adeB. Our findings highlight the significant role of the AdeABC system in tigecycline resistance among Thai clinical TRAB isolates. This is supported by point mutations within the AdeRS and upregulated expression of the adeB. These results provide valuable insights for understanding resistance mechanisms and developing novel therapeutic strategies.
Antifungal potential, mechanism of action, and toxicity of 1,4-naphthoquinone derivatives
Authors: de Almeida Juan Diego Ribeiro , Fonseca Raissa Sayumy Kataki , de Sousa Naira Sulany Oliveira , Cortez Ana Cláudia Alves , Lima Emerson Silva , de Souza Oliveira Juliana Gomes , de Souza Érica Simplício , Frickmann Hagen , de Souza João Vicente Braga 
Published: August 2024

AbstractBackgroundThe rising prevalence of fungal infections and challenges such as adverse effects and resistance against existing antifungal agents have driven the exploration of new antifungal substances.MethodsWe specifically investigated naphthoquinones, known for their broad biological activities and promising antifungal capabilities. It specifically examined the effects of a particular naphthoquinone on the cellular components of Candida albicans ATCC 60193. The study also assessed cytotoxicity in MRC-5 cells, Artemia salina, and the seeds of tomatoes and arugula.ResultsAmong four tested naphthoquinones, 2,3-DBNQ (2,3-dibromonaphthalene-1,4-dione) was identified as highly effective, showing potent antifungal activity at concentrations between 1.56 and 6.25 μg mL−1. However, its cytotoxicity in MRC-5 cells (IC50 = 15.44 µM), complete mortality in A. salina at 50 μg mL−1, and significant seed germination inhibition suggest limitations for its clinical use.ConclusionsThe findings indicate that primary antifungal mechanism of 2,3-DBNQ might involve disrupting fungal membrane permeability, which leads to increased nucleotide leakage. This insight underscores the need for further research to enhance the selectivity and safety of naphthoquinones for potential therapeutic applications.
Assessment of vulnerability to fluvial floods: Case of municipalities of the Gidra River Basin, Slovakia
Authors: Vojtek Matej , Moradi Soheyl 
Published: August 2024

Cel pracyCelem pracy jest ocena wrażliwości gmin położonych w dorzeczu Gidry na powodzie rzeczne. Obliczyliśmy wskaźnik podatności na powodzie rzeczne (FFVI) odnoszący się do roku 2021 dla dwunastu gmin znajdujących się w dorzeczu Gidry.Materiał i metodyDo określenia odpowiedniego subindeksu podatności na powódź gospodarczą (EFVsI) i subindeksu wrażliwości na powódź społeczną (SFVsI) wykorzystano trzy wskaźniki wrażliwości ekonomicznej i siedem wskaźników wrażliwości społecznej. Znormalizowaliśmy pierwotne wartości wskaźników metodą maksymalny i potraktowaliśmy wszystkie wskaźniki jako równie ważne. W ostatnim kroku określiliśmy FFVI dla każdej gminy w skali [0, 1] poprzez agregację EFVsI i SFVsI, które miały równe wagi.Wyniki i wnioskiNajwyższe wartości EFVsI odnotowano w gminach Častá (0,81), Cífer (0,66) i Budmerice (0,64), które znajdują się w środkowej (Cífer) i górnej (Častá i Budmerice) części dorzecza. Najwyższe wartości SFVsI zanotowano w gminach Píla (0,79) i Štefanová (0,76), które leżą w górnej części dorzecza. Na podstawie wartości ostatecznego FFVI można stwierdzić, że największą wrażliwość na powodzie rzeczne charakteryzują gminy Častá (0,75), Budmerice (0,67) i Cífer (0,67). Natomiast najniższe wartości notuje się w gminach Ružindol (0,37), Pavlice (0,38) i Jablonec (0,40).
‘The Naked Truth’ about degendering
Authors: O’Neill Brittney K. 
Published: August 2024

In West Coast Swing (WCS) dancing, traditionally only men were permitted to lead and women to follow; however, since 2014 the degendering movement has sought to enable all dancers to participate in their preferred role and to remove gendered language from the discourse around leading and following. As part of a larger linguistic ethnography exploring (de)gendered language use in WCS contexts across Central Canada and the US Northeast and Midwest, this case study explores patterns of and factors contributing to the use and avoidance of gendered language in The Naked Truth, a podcast created by and for the WCS community. While the podcast hosts use the degendered terms ‘leader’ and ‘follower’, their differing but continued use of heteronormatively gendered pronouns in coreference with these neutral terms suggests that the speakers’ mental models remain gendered and that there is a continued need for representation of individuals dancing in nonheteronormative roles.
Timber-timber composite (TTC) joints made of short-supply chain beech: Push-out tests of inclined screw connectors
Authors: Sciomenta Martina , Gualtieri Pasqualino , Spera Luca , Contu Francesco , Fragiacomo Massimo 
Published: August 2024

AbstractThis paper presents the results of experimental investigations on six-layered, homogeneous glulam beams made of Italian short supply chain beech (Fagus sylvatica L.). At first, the beams were produced and mechanically characterized for bending, then, they were employed to realize timber-timber composite joints and tested under quasi-static monotonic loading. The test configurations were adopted to reproduce connections used in timber-to-timber composite structures for applications in new constructions. Outcomes in terms of connection stiffness, strength, static ductility and failure modes are presented and discussed. Moreover, the experimental stiffness were used to carry out analytical verification at the serviceability and ultimate limit states to extend the validity of the proposed screw and specimen’s configurations.
Syncretic Strategies of Representation of Transcendence in Puccini’s “Nessun Dorma”
Authors: Nogueira de Castro Monteiro Ricardo 
Published: August 2024

The present article aims to discuss the construction of the effect of meaning of transcendence in Puccini’s “Nessun Dorma”. Methodologically, the research draws upon Eero Tarasti’s existential semiotics, Luiz Tatit’s song semiotics, the Greimassian analytical framework and traditional musicological resources. By analyzing the aria’s melodic, harmonic, and orchestral dimensions, the study reveals how some musical elements establish homologies with categories of content related to secrecy and transcendence. The findings detail how the syncretic text is structured by the intertwining of verbal and musical elements and highlight the aria’s role in symbolizing the unfolding of secrets and the protagonist’s journey, ultimately conducting to a synthesis materialized by the Platonic triad of the Good, the Beauty, and the Truth. The research contributes to a deeper understanding of syncretic texts, demonstrating “Nessun Dorma” as a quintessential example of thematic and musical transcendence.
Administracyjnoprawne ograniczenia prawa własności nieruchomości
Authors: Kamiński Łukasz 
Published: August 2024

Prywatna własność nieruchomości to jeden z fundamentów ustroju społeczno-gospodarczego Rzeczypospolitej Polskiej. Nieograniczona własność prowadziłaby jednak do samowoli i anarchii, dlatego prawo własności nieruchomości podlega licznym ograniczeniom administracyjnoprawnym ustanawianym w celu zabezpieczenia interesu publicznego. Prezentowana monografia jest próbą przekrojowego ujęcia zagadnienia administracyjnoprawnych ograniczeń prawa własności nieruchomości z uwzględnieniem podejścia interdyscyplinarnego.
Książka jest skierowana zarówno do osób zajmujących się naukami prawnymi, zwłaszcza prawem administracyjnym, cywilnym i konstytucyjnym, jak i do pracowników organów administracji publicznej, przedstawicieli zawodów prawniczych oraz wszystkich zainteresowanych kwestią administracyjnoprawnej sytuacji właściciela nieruchomości w Rzeczypospolitej Polskiej.

Publikacja dofinansowana w ramach dotacji na zadania służące rozwojowi młodych naukowców i doktorantów
Peran Komite Untuk Peningkatan Mutu Lembaga Pendidikan di Madrasah Aliyah Negeri 4 Kabupaten Kediri
Authors: Nauval M. Mirza Azizin 
Published: August 2024

Community involvement in education is embodied in the Madrasah Committee organization formed by each education unit. This organization aims to channel community aspirations and initiatives, responsibilities, community roles and a transparent, accountable and democratic atmosphere in the implementation of education can actually be realized. So that this goal is not just a slogan, a strategy is needed so that the role of the Madrasah Committee can be optimal and can contribute to education so that the quality of education is increasing.
Based on the description above, it can be formulated a problem formulation, first, how the tasks carried out by the Madrasah Committee in improving the quality of education in Madrasah Aliyah Negeri 4 Kediri Regency. Second, how is the function carried out by the Madrasah Committee in improving the quality of education in Madrasah Aliyah Negeri 4 Kediri Regency.
This research use desciptive qualitative approach. There are 3 kinds of data collection methods used by researchers, namely the observation method, the interview method, and the documentation method. Analysis of the data in this study by recording data from interviews, observations and documentation, organizing the data, sorting it out to answer the formulation of the problem then looking for and finding meanings related to the formulation of the problem.
The results of the study, first, the Madrasah Committee's duties are as an advisory agency in all activities carried out, a supporter (supporting agency), controller (controlling agency) and a mediator or liaison between parents and schools to make a superior school or madrasah. The Madrasah Committee is running well. Second, the function of the Madrasah Committee is to encourage public attention and commitment to the implementation of quality education, to collaborate with the community (individuals/organizations/business/industrial world) and the government regarding the provision of quality education, to accommodate and analyze aspirations, ideas, demands. and various educational needs proposed by the community, providing input, considerations, and recommendations to the education unit regarding: education policies and programs, RAPBS, educational unit performance criteria, education personnel, educational facilities, and so on, encouraging parents and the community to participate in education in order to support the improvement of the quality and equity of education, to raise public funds in financing the implementation of education in the education unit, to evaluate and supervise the policies, programs, implementation, and outputs of education in the education unit.
From these results, the researcher suggests that these tasks and functions be maintained and further developed so that the role of the Madrasah Committee is more optimal so that the quality of education in Madrasah Aliyah Negeri 4 Kediri Regency is increasing.
Exploring Junior High School Students' Perception on The Implementation of Picture Series as Media for Learning Writing: A Qualitative Descriptive Study
Authors: Ayu Chlorida Metana , Fitriyah Siti Masrifatul , Hudori Rizki Febri Andika 
Published: August 2024

Abstract
In this 2.0 education era, many English teachers use various visual aids to help students writing performance. One of the visual instructional media that is used picture series. Picture series is defined as a group of several pictures that describe the atmosphere that is told and show continuity between one picture and another. This research was descriptive qualitative research. This research was conducted at a junior high school in Jember with the 23 students as participants. The researcher used the close-ended, and open-ended questionnaires instrument. Based on the data obtained, the results of this research found that the first research question about students’ perceptions on teaching writing descriptive text using picture series, the researcher found that when the teacher used picture series, students were more enthusiastic to follow the lesson. The previous results indicated that there was an overwhelmingly positive reception to the teacher's teaching method using picture series. The students reported that this enjoyable method made them more eager to learn and more creative in their approach to their studies. Then, the second research question about students’ expectation in this study showed that the students have expressed their satisfaction with the efficiency and effectiveness of their writing teacher in delivering clear and concise material, providing relevant and helpful examples, assigning tasks that are pertinent to what they have learnt, and providing feedback on their work. It is positive to see that the students value their teacher's approach, which has led to their increased motivation and creativity in their learning.
Keywords: Learning method, Perception, Picture series, Writing