bluuebunny/crossref_metadata_2025 huggingface dataset:
A comprehensive approach to concrete strength testing: combining destructive, non-destructive and wireless sensor methods
Authors:   International Educational Corporation (campus Kazakh Leading Academy of Architecture and Civil Engineering), Taubaldy I. , Akhmetov D. ,   Satbayev University, Rakisheva A. ,   D. Serikbayev East Kazakhstan Technical University
Published: June 2023

To assess the condition of the structures of buildings and structures it is necessary to perform a comprehensive analysis of the factors affecting their performance characteristics - concrete strength, thermal conductivity and humidity of concrete, frost resistance, and water resistance. However, with a variety of controllable parameters the control of concrete strength takes a special place because the main factor of structure condition estimation is the correspondence of actual concrete strength to the design requirements. The paper presented the basic methods of concrete strength control which are used while examining the constructions of buildings and structures. The results of the experiments comparing the data obtained by destructive, non-destructive, and alternative methods were investigated. A wireless sensor of concrete strength, produced in Kazakhstan, was used when carrying out the tests with the use of smart technology. And the graphical quantitative-qualitative method "web" used by the authors allowed to determine and identify the features of each method.
The Story Which He Never Stops Telling Himself: Autobiography, Narrative Community, and the Deconstruction of Selfhood in Virginia Woolf's The Waves
Authors:   ,   Andrews University, Roschman Melodie
Published: June 2023

This paper examines narrative, biography, and selfhood in Virginia Woolf's The Waves (1931). The novel, a "play-poem," follows six friends' monologues from childhood to death. I analyze aspiring writer Bernard from his childhood of telling stories about companions to his inability to narrate his autobiography, arguing that he fails because he has no self to narrate. Referencing Jacques Derrida's Of Grammatology's (1974) theory of the deconstructed self identifiable only in conversation, I argue that Bernard destroys his identity by silencing his friends and becoming the sole speaker; Woolf's biographical theory thereby establishes the communal self, prefiguring tenets of postmodern philosophy.
A Study in Red: The Codification and Practical Application of a Copyediting Procedure
Authors:   ,   Andrews University, Berglund Nathan
Published: June 2023

Editing is an integral part of publishing professional-level writing, but editing -- specifically copyediting -- can be very subjective, relying on the copyeditor's best judgment. For novice editors such as myself, this responsibility can be intimidating. For this research project, I formulated and tested a step-by-step copyediting procedure aimed at alleviating these jitters. After reading copyediting guides and interviewing four active copyeditors, I developed a procedure. I then tested that procedure on Timothy Huck's 115-page manuscript, The Lights of the Arno: A Novel. I conclude that even with a standardized editing methodology, editors will always need to rely on their subjective judgment.
Changing Attitudes Towards Sexual Orientation and the Effect of Documentary Film
Authors:   ,   Andrews University, VanderWaal Michael
Published: June 2023

Attitudes towards LGBT people are shifting rapidly, with over half (51%) of the US population now favoring same-sex marriage. LGBT issues are also being hotly debated in the Seventh-day Adventist (SDA) church. The purpose of this research is to examine how the film, Seventh-Gay Adventist (SGA) influences SDA college students' attitudes regarding homosexuality. My study compares attitude scores of students (N=46) using an experimental design with random assignment. Both the experimental group and the control group completed a commonly used Homosexuality Attitude Scale and modified version of Fulton's Adventists and LGB's survey at pretest and posttest. Results show that the film had no significant effect on students' overall attitudes. However, a significant difference in attitude change was found on one individual item: a homosexual's ability to become heterosexual. This suggested that after watching the film, subjects were more likely to think that lesbian and gay individuals cannot change their sexual orientation.
Taphonomic Degradation of Chicken Feathers by Bacteria and Fungi in Varying Sediments
Authors:   ,   Andrews University, Van Putten Douglas
Published: June 2023

The purpose of this study was to identify the relationships between the early taphanomic degradation of chicken feathers and the environmental/biological variables that affected the feather's physical characteristics. The variables tested included sediment type, length of burial, and bacteria. We examined the physical changes that occurred in Rooster Chinchilla Rounds from the species Gallus gallus when they were inoculated with Bacillus subtilis bacteria from local soil and buried in two different sediments. The sediments tested were local silt from St. Joseph River and ash deposits from Mount St. Helen's 1980 eruption. We analyzed for changes in barbule count, macrostructure, for fossilization of feathers.
Distribution and Paleobiology of Hibernation in Fossil Ground-Dwelling Squirrels from the Great Plains, USA
Authors:   ,   Andrews University, Sanchez Randy
Published: June 2023

Hibernation is a widespread phenomenon present across mammalian taxa, including in many ground-dwelling squirrels (family Sciuridae). Prior work has shown that a hibernation mark can be identified in the ever-growing incisors of these ground squirrels through surface inspection. In this study, we inspected fossil incisors, originating from the Great Plains, from the C.W. Hibbard collection at the University of Michigan for features associated with hibernation marks in modern species. We noted hibernation mark-like features in several fossil ground squirrel incisors from the genera Otospermophilus, “Spermophilus”, and Urocitellus, ranging stratigraphically from the early Pliocene to the late Pleistocene and providing the oldest known record of hibernation for ground squirrels.
Mobile Application for Biosensor Colorimetric Analysis
Authors:   ,   Andrews University, You Eui Bin
Published: June 2023

Inexpensive paper-based biosensors can be valuable screening tools to test for various illnesses, but it is often challenging to design them to produce a visual change that can easily be identified by untrained users. This research examines one method of compensating for the lack of distinct visual cues by developing and testing a mobile application that uses a machine learning algorithm (k-Nearest Neighbors) to analyze a picture of a sensor and determine whether it shows a positive or negative result. The machine learning algorithm was trained on a set of labeled sensor images and k-fold cross-validation was used to analyze its classification accuracy.
Immigration Stories and the Construction of a Bilingual American Identity
Authors:   ,   Andrews University, Bowman Camden
Published: June 2023

This project seeks to document first-generation, Spanish-speaking Americans' immigration stories by transcribing and translating their oral accounts from Spanish to English, in an attempt to increase understanding between Anglophone and Spanish-speaking populations. The project envisions immigration stories as the basis for a distinct American folklore, at the same time connecting Americans to their ethnic or national roots and distinguishing them from their ancestors, giving them a unique American identity. With this sort of nationalizing "myth" in mind, the project seeks to create a record of first-generation permanent Americans, painting a picture of the beginnings of a new Spanish-speaking U.S. identity.
Localization of Carboxypeptidase O in Madin-Darby Canine Kidney Cells
Authors:   ,   Andrews University, Dockery Donnel
Published: June 2023

Carboxypeptidases are enzymes that trim the carboxy-terminal ends of proteins. Carboxypeptidase O (CPO) is a recently discovered enzyme that was proposed to be associated with lipid droplets. Lipid droplets are organelles found in the cytosol of the cell that carry out different roles like storing metabolic energy and protein degradation. To test if CPO and lipid droplets were associated, we used immunocytochemistry and lipid droplet staining of Madin-Darby canince kidney (MDCK) cells. Our data shows that lipid droplets can be detected with both BODIPY 493/503 and Nile Blue dye. CPO is associated with lipid droplets, but CPO does not affect the number of lipid droplets. Studies show that lipid droplet proteins contain potential cleavage sites for CPO. This information can possibly help in the advancement of research of metabolic disease.
A Mathematical Model Describing the Dynamics of HIV Virions and CD4+T Cells in the Human Immune System
Authors:   ,   Andrews University, Chacko Matthew
Published: June 2023

Human Immunodeficiency Virus (HIV) is an intracellular parasite that attacks cells of the immune system called CD4+T cells. In ecology the Lotka-Volterra models, a classical set of differential equations, describe three interactions between species in ecosystems: predator/prey, mutualism, and competition. The human body is also an ecosystem with HIV and T cells exhibiting the three Lotka-Volterra interactions with each other. I pose a mathematical model that predicts T cell/HIV dynamics by incorporating the three Lotka-Volterra interactions and other salient biological phenomena that influence the dynamics, such as T cell senescence and the presence of viral reserviors.
Constructing Short Fiction: The Creative Writing Process
Authors:   ,   Andrews University, Joslin Mark
Published: June 2023

This project explores a creative fiction writer's process through writing four pieces of short fiction. Documenting his progress along the way, the writer uses peer-revision to refine his work. This method is intended to improve early drafts by both interacting with readers and utilizing the examples of well-know authors. The writer's stories will be considered successful if their plot moves at a bright pace, if the characters and setting are authentic, and if they come to a satisfying conclusion. The project will consist of these stories and an accompanying writer's notebook, which examines revisions representative of a move to good fiction writing.
The Role of Sabbath-keeping, Christian Internalization, Need Satisfaction, and Parental Environment in Well-being
Authors:   ,   Andrews University, Caceres Paola
Published: June 2023

Identifying which specific religious practices promote religious internalization is crucial in understanding the relationship between practice and well-being. The current study employs surveys along with an episodic memory recall task to examine whether the relationship between Sabbath-keeping internalization and well-being is mediated by Christian religious internalization, parental environment, and basic need satisfaction as outlined in Self-Determination Theory. Our mediation analysis results demonstrate a large mediation effect size for daily basic needs satisfaction (autonomy, competence, and autonomy) on the relationship between internalization of Sabbath-keeping and well-being. Small to medium effect sizes were found for a general measure of Christian internalization and parental environment.
Teaching Strategies: How to Explain the History and Themes of Abstract Expressionism to High School Students Using the Integrative Model
Authors:   ,   Andrews University, Maynard Kirk
Published: June 2023

The purpose of my thesis is to create a guideline for teachers to explain art history to students in an efficient way without many blueprints and precedence to guide them. I have to focus my topic on Abstract Expressionism and the model that I will be using to present the concept of Abstract Expressionism will be the integrated model instructional strategy. The integrated model will serve as the guilde to creating well crafted art history lessons in the classroom. This integrated model will also be laid out and summarized in a lesson plan designed to give the teacher direction in the lesson presented.
All in All Anterior to Posterior Segment Ocular Diseases in a Single Individual
Authors: Sheyva Sigamoney
Published: June 2023

Significance:
Anterior to posterior ocular diseases in the eye is possible, although rare. Visual disturbances and ocular discomfort may contribute to several factors.
Purpose:
The purpose of this case report was to describe the possibility of multiple ocular diseases that may present in the eye, making it imperative for optometrists to perform a comprehensive eye examination daily.
Case report:
A 57-year-old, female presented with a severe gritty sensation in the right eye. The patient underwent Laser Assisted In-situ Keratomileusis (LASIK) 30 years ago and her medical history reveals newly diagnosed Hypertension. The patient has mild bilateral blepharoptosis, and on slit lamp examination with fluorescein staining, the ocular surface reveals multiple Superficial Punctate Keratitis (SPK) possibly due to Post-LASIK. Further, mild clouding of the crystalline lenses was noted suggestive of Nuclear Sclerosis (NS). Dilated eye examination, reveals tiny multiple yellowish-white reflecting particles which were Asteroid Hyalosis (AH) and flame-shaped hemorrhages extended from the optic disc to the macula that is suggestive of Central Retinal Vein Occlusion (CRVO). All in all anterior to posterior segment ocular diseases in this patient were managed accordingly by Optometrist and Ophthalmologist. The diagnosis made were bilateral aponeurotic ptosis, severe dry eyes, NS, AH, and CRVO. The patient was treated with topical cyclosporine and Anti-vasular endothelial growth factor (anti-VEGF) scheduled.
Conclusion:
This case demonstrates the role of patient history, clinical findings, diagnosis, and treatment of blepharoptosis, chronic dry eye, NS, AH, and CRVO. It emphasizes the importance of evaluating the anterior to posterior segment ocular structures and managing such cases requires close collaboration and teamwork with ophthalmologists. Careful examination and systemic evaluation are vital in such a scenario. It is important to educate patients that any sudden vision loss is not normal and they should consult an eye care professional immediately.
HIGIENITAS DALAM BISNIS PARIWISATA: ANALISIS BIBLIOMETRIK PADA DATABASE SCOPUS
Authors: Prayitno Andaru Rachmaning Dias
Published: June 2023

Higienitas merupakan salah satu faktor yang perlu diperbaiki guna meningkatkan produktivitas dalam sektor pariwisata. Berdasarkan laporan The Travel and Tourism Competitiveness Report yang dirilis oleh World Economic Forum (WEF) di tahun 2019, Indonesia memperoleh skor 5 dari 7. Kebersihan lingkungan, sanitasi, dan toilet menjadi tolok ukur tersendiri bagi higienitas di Indonesia dan memerlukan perhatian khusus. Penelitian ini menggunakan database scopus. Artikel ini menganalisis karakteristik publikasi, peneliti, universitas, dan kontribusi negara di bidang higienitas berwisata dari tahun 2003-2023 dengan menggunakan metode bibliometrik. Metode ini berguna karena melibatkan analisis kuantitatif sejumlah besar literatur, menggunakan metode matematika dan statistik. Hasil menunjukkan terdapat 372 dokumen dengan India, Indonesia, dan United States sebagai negara dengan artikel paling banyak diterbitkan di bidang tersebut. Adapun rekomendasi kebijakan yaitu perlu meningkatkan pembangunan dan perbaikan sarana prasarana yang dapat menunjang higienitas, sehingga wisatawan tidak ragu untuk melakukan aktivitas pariwisata. Penelitian selanjutnya diharapkan berfokus pada perilaku masyarakat terhadap pemanfaatan sarana dan prasarana penunjang pilar higienitas serta menumbuhkan kesadaran untuk menjaga keberlangsungan dalam jangka panjang.

Keywords: Higienitas, Ekonomi Pariwisata, Bibliometrik
Comparative analysis and benchmarking of commercial and emerging fast pyrolysis technologies
Authors: BELE GEORGIANA , BENALI MARZOUK , STUART PAUL
Published: June 2023

It is well established that producing sustainable fuels and replacing the fossil-based ones is one of the key solutions to achieving net-zero emissions goals. One of the most advanced commercial-scale pathways to biofuels available today is fast pyrolysis. However, due to the need for a supportive regulatory environment and mitigation strategies for uncertainties related to costs and feedstock quality, fast pyrolysis is not yet being widely implemented.
In this case study, three fast pyrolysis technologies with a technology readiness level (TRL) of 6 and above have been compared to distinguish between them and identify the conditions under which they are economically viable. The circulating fluidized bed (CFB), rotating cone (RC), and mechanically assisted fluidized bed (MFB) fast pyrolysis technologies were considered. First, the flow diagram and a mass and energy balance comparison were addressed. It was revealed that the RC configuration has better bio-oil yields because it can handle smaller particles. The MFB configuration has a progressive condensation unit at the end of the process, which produces a nearly dry oil having a higher energy content.
Four implementation scenarios were studied. The first was the fast pyrolysis standalone process, where all options had marginal economic attractiveness, and the RC configuration economically outperformed the other two. Integration of a fast pyrolysis plant into a sawmill in the second scenario was found to bring significant improvements in revenues and internal rate of return (IRR). Realization of the full value of bio-oil (the third scenario) brought significantly more revenues for the MFB. Finally, the fourth scenario involved adding a progressive condensation unit, which increased the capital expenditure (CAPEX) by 3%–4% while increasing revenues by 32%–35%. A sensitivity analysis highlighted the importance of financial support towards capital cost and the full valuation of bio-oil for the economic viability of fast pyrolysis processes. Progressive condensation leading to more added-value bio-oil makes the standalone fast pyrolysis process more profitable.
Developing Differentiated Learning Devices to Heighten Student Learning Outcome on Light Concepts at SMP Negeri 1 Kwandang
Authors: Timbola Guntur , Mursalin  , Odja Abdul Haris
Published: June 2023

Research development aims to produce differentiated learning tools that are valid, practical, and effective on the sub-theme of Light. The research model uses the ADDIE model. The research was carried out in one of the North Gorontalo Regency Middle Schools in the 2021/2022 academic year. The results of the research show that the differentiated learning tools developed meet the valid, practical, and effective requirements. The average percentage of expert validation results on RPP, LKPD, teaching materials, and learning achievement test instruments with respective categories is around 94%, 94%, 90%, and 90%. The results of the analysis of the implementation of learning and learning activities of students on good criteria were around 96% and 94%, respectively, and the percentage of students' responses in the trial was around 93%. The mean final test score of learning outcomes for each differentiated group has increased, namely for students with high learning readiness (79.43), moderate learning readiness (81.06), and low learning readiness (80.68) with an average percentage of student learning completeness about 94%. Furthermore, the mean N-Gain results of the three differentiated groups were in the high category, above 0.7. with the respective results for groups with high learning readiness at 0.74, groups with moderate learning readiness at 0.77, and groups with low learning readiness at 0.77.
Creating Discursive Conditions for Constitution Reforms in Tanzania
Authors: Malima Masatu Julius , NGAIZA ASTERIA
Published: June 2023

There has been low public participation in discursive constitutional reforms in Tanzania. However, the discursive conditions shaping such low public participation were still unknown. The current study examined discursive conditions for constitutional practices. The study employed Mactayres' legitimation theory (1998) of the common public good to extract discursive conditions of reconstitution debates in Tanzania. A documentary review was used to extract data, and transcription and translation were later done. Four data sets were involved in the analysis: two public discursive forums, telephone public deliberation opinions and television interviews of politicians. Attride-Stirling (2001) thematic qualitative analysis guided the systematic methodological analysis of the study. The findings show four main discursive conditions for constitution debates in Tanzania: lack of inclusive public discursive participation, lack of normative values for discursive critiques and inquiries, lack of public discursive constitution consciousness and inappropriate public discursive setting and structures. It is recommended that public constitution awareness requires total involvement of civil societies, government organs, politicians, professionals, media and individuals; secondly, public constitution awareness-raising should be held before engaging the public in public deliberation of constitution reform; thirdly, the nature of public awareness should reflect appropriate platforms that suit public discursive settings and involve a wide public agenda (economics, health, education, agriculture, human rights) to allow a wide public deliberation; fourthly, during constitution debates public should be informed on the values of public discourse that involve rational arguments, tolerance respects and public consensus to achieve a common understanding. Fifthly, where there are no discursive structures (discursive layout), public consensus must be on the road map toward the new constitution. Finally, those responsible for collecting public opinions should arrange and conduct constitutional debates in an informal setting with no time constriction to make it easy for majority participation and to achieve data saturation of public opinions. While the study contributed to democratic discursive conditions as the party of Critical Discourse Analysis, future studies can focus on power relationships and reconstitution practices in Tanzania.
СТРАХ, ГНІВ, СМУТОК ЯК ЯДЕРНІ КОНЦЕПТИ ЕМОЦІЙНОЇ КАРТИНИ СВІТУ В АНГЛІЙСЬКІЙ ФРАЗЕОЛОГІЇ
Authors: Кольцова Олена Сергіївна
Published: June 2023

Мета статті – визначити специфіку репрезентації ядерних емоційних концептів страху, гніву, смутку емоційної картини світу в англійській фразеології. Методи: дефініційний аналіз (для визначення специфіки поняття «емоційний концепт»), метод суцільної вибірки (для формування джерельної бази дослідження – фразеологічних одиниць, що репрезентують ядерні емоційні концепти страху, гніву, смутку емоційної картини світу англійців), концептуальний аналіз (для опрацювання особливостей вияву зазначених емоційних концептів в англійській фразеології). Результати: 1) визначено ключові кваліфікаційні ознаки емоційного концепту як явища мови, мовлення, комунікації; 2) окреслено методику вивчення емоцій на фразеологічному рівні англійської мови; 3) охарактеризовано особливості репрезентації ядерних емоційних концептів страху (стан хвилювання / тривоги / неспокою, спричинений очікуванням чого-небудь неприємного, небажаного для особистості), гніву (почуття сильного обурення; стан інтенсивного нервового збудження і/або роздратування особистості), смутку (невеселий, важкий настрій, спричинений горем, невдачею, іншими несприятливими для особистості обставинами) на матеріалі англійської фразеології. Висновки. Визначено, що емоційний концепт – складне багатовимірне утворення ментально-афективного характеру, ядром якого є власне емоція, що відчувається мовцем у певний момент мовлення а знаходить свій вияв у його вербаліці та невербаліці. Доведено, що ядром емоційної картини світу англійців виступають емоційні концепти страху, гніву, смутку. Виявлено, що фразеологічні одиниці, які їх вербалізують, описують різноманітні емоційні відтінки, що переживає мовець у певний момент свого існування: почуття страху, яке переживає особистість, та почуття страху, яке особистість викликає; почуття відсутності страху, сміливості, упевненості в собі; почуття роздратування та злості, спричинені іншими людьми або ж об’єктивними обставинами; додаткові почуття, що супроводжують основну емоцію смутку; фізичні відчуття, які переживає засмучена людина.
Modern model of production safety culture in the aspect of sustainable development of industrial production in the Russian Federation
Authors:   «Komi Republican Academy of Public Administration and Management», Lyskova Irina E.
Published: June 2023

Topic. The article updates the main trends of sustainable development of industrial production in the Russian Federation. Despite the growing interest in various aspects of the humanitarian and socio-cultural orientation of the development of industrial production, the essence and practical significance of the production safety culture is realized by a poorly studied topic. The object of the study is the normativemethodological, legal and socio-psychological foundations of the formation of a production safety culture of industrial enterprises. The subject of the study is the system of production safety culture. Goal. The purpose of the study is to systematize and characterize the structural and substantive aspects of the modern model of production safety culture of industrial enterprises. Tasks. The objectives of the study are to substantiate the key provisions that ensure the formation and development of a production safety culture of industrial production, including, industrial safety culture, occupational safety culture, quality culture, environmental culture. Methodology. The research methodology is based on a systematic and process approach to managing the production safety culture. Results. The main results of the study are the actualization and systematization of conceptual, normative and axiological aspects of the formation of a production safety culture. Practical aspects of the formation of a production safety culture are presented on the example of PJSC «Gazprom». Conclusions. The importance of the conceptual foundations and practical aspects of the formation and development of a production safety culture is determined by modern trends in the sustainable development of industrial production. The proposed model promotes the recognition of the culture of industrial safety as a goal, value, norm, quality standard.
Theoretical and methodological approaches to the study of the processes of economic convergence and divergence of regional integration associations
Authors:   Market Economy Institute of RAS, Usmanov Daler I. ,   Financial University under the Government of the Russian Federation, Anishchenko Alesya N. ,   Market Economy Institute of RAS
Published: June 2023

The article presents the results of the study of theoretical and methodological provisions and classification attributes (principles, types, approaches, specificity) of the conceptual framework of «convergence/divergence» conceptual systems as applied to regional integration associations in an uncertain geo-economic environment. The authors conducted an extensive review of scientific literature and cross-research materials which helped to identify forms of interaction between integration associations under the conditions of increasing globalization through deepening of integration processes, which made it possible to formulate a new economic effect of regionalization «aggregation». The study, as a whole, deepens the systematic mapping of the development of the main stages in the evolution of economic models based on the theory of convergence and divergence in the system of economic knowledge, which will serve as a basis for retesting old and initiating new empirical tests for econometric modelling of the impact of endogenous and exogenous variables on the activities of integration associations.
Pengujian Erosi pada Kemiringan Dan kepadatan Tanah organik
Authors: Fatmawati Suci
Published: June 2023

Penelitian ini memiliki latar belakang yaitu adanya kemiringan dan kepadatan tanah organik yang bervariasi sehingga sangat menentukan jumlah erosi yang terjadi pada suatu daerah sehingga diperlukan penelitian untuk mengetahui jumlah erosi yang terjadi. Rumusan masalah yang dikaji yaitu bagaimana pengaruh erosi terhadap kemiringan dan kepadatan tanah juga intensitas hujan. Penelitian ini bertujuan untuk menganalisis pengaruh serta hubungan antara erosi dengan kemiringan lereng, intensitas curah hujan dan kepadatan tanah yang terjadi pada tanah organik. Metode pembanding yang digunakan adalah  USLE (Universal Soil Loss Equation) dalam  menentukan jumlah erosi pada tanah yang memiliki kadar organik dengan total 18,67%. Dari penelitian yang dilakukan di laboratorium dengan tiga variasi intensitas hujan yaitu 23 mm/jam, 34 mm/jam dan 51 mm/jam didapatkan hasil berupa  jumlah erosi sebesar meningkat 40 %, untuk tingkat kemiringan dengan tiga variasi yaitu 10◦, 15◦dan 20◦ menghasilkan peningkatan jumlah erosi sebesar 30 %. Hasil penelitian dengan variasi kepadatan 60% dan 70% menunjukkan hasil penurunan jumlah erosi sebesar 3 %. Dengan demikian kesimpulan yang dapat diperoleh yaitu semakin besar kemiringan lereng, intensitas hujan, dan kadar organik tanah maka erosi yang terjadi pada suatu daerah akan semakin besar pula.
Pengaruh Variasi Slag Nikel Sebagai Bahan Tambah Agregat Halus pada Campuran Lapisan Aspal Beton
Authors: Syaharuddin  , Hafram St. Maryam , Alifuddin Andi
Published: June 2023

Saat ini berbagai penelitian telah dilakukan khususnya dalam bidang teknologi material (bahan) untuk komponen campuran perkerasan jalan dengan pemanfaatan limbah. Pemanfaatan Limbah menjadi sangat penting untuk mencegah pengaruh buruk dari buangan limbah tersebut sehingga memiliki nilai manfaat. Disisi lain, pemanfaatan limbah mengurangi pemakaian material Alam yang semakin lama semakin menipis. Salah satu limbah buangan hasil Pengolahan Industri Pertambangan Nikel PT. Antam Tbk, Unit Bisnis Pertambangan Nikel (UBPN) Sulawesi Tenggara, yaitu Slag Nikel. Diharapkan limbah Slag Nikel mampu meningkatkan kinerja perkerasan jalan. Penelitian ini bertujuan untuk menganalisis pengaruh variasi Slag Nikel pada campuran AC-WC terhadap sifat-sifat Marshall dan sifat mekanis campuran AC-WC dengan Slag Nikel pada pengujian Indirect Tensile Strength (ITS). Prosedur penelitian menggunakan metode Eksperimen. Pengujian dengan menggunakan alat uji Marshall dan Indirect Tensile Strength (ITS). Hasil pengujian menunjukkan bahwa kadar Slag Nikel yang memenuhi sifat-sifat Marshall adalah pada kadar Slag Nikel sebesar 10% dan hasil analisis Indirect Tensile Strength, didapatkan Kuat tarik tidak langsung maksimum ditunjukkan pada kadar Slag Nikel 10% sebesar 79.147,74 Kpa.
Kajian Kebutuhan Debit Air pada Daerah Irigasi Bila Kabupaten Sidenreng Rappang
Authors: Cambe  , Ashad Hanafi , Hadi Abd. Karim
Published: June 2023

Pengkajian ketercukupan air di sungai dalam memenuhi kebutuhan air irigasi sesuai dengan pola tanam dan periode yang tepat penting dalam pengolahan lahan. Penelitian ini bertujuan untuk membandingkan kebutuhan dan ketersediaan debit air sehingga dapat diketahui neraca debit Sungai Bila di Bendung Bila Kabupaten Sidenreng Rappang. Dilakukan survei dan pengumpulan data sekunder dari lembaga terkait untuk analisis kebutuhan dan ketersediaan (Q 80%). Metode analisis berdasarkan metode rata-rata aljabar dan Penman modifikasi sedangkan analisis kebutuhan irigasi berdasarkan metode evapotranspirasi, perkolasi, curah hujan efektif, dan efesiensi irigasi. Defisit dialami selama Bulan Agustus sampai dengan Nopember dengan interval debit mulai 4m3/dtk hingga 6m3/dtk. Sementara itu, dari Bulan hingga Juli kondisi debit sungai masih surplus dengan debit 8 m3/dtk hingga 31 m3/dtk dengan luasan daerah irigasi eksisting yaitu 7151 ha. Dalam mengantisipasi potensi defisit debit air tersebut, maka perlu dilakukan metode golongan atau bergilir sebagai betuk rekayasa dalam mendistribuskan debit air pada bagian areal persawahan terutama dalam rentang Bulan Oktober dan Nopember. Dengan begitu, diharapkan Daerah Irigasi Bila dapat memperoleh pasokan air secara merata selama dua musim tanam.
Analisis Perubahan Sosial, Tinjauan Ekonomi dan Ekologis Akibat Beroperasinya Jalan Layang Tol Andi Pangerang Pettarani
Authors: Putra Wudi Darul
Published: June 2023

Pembangunan Jalan Layang berbayar (tol) Andi Pangerang Petta rani sebagai bagian dari Jalan Arteri Tol di Kota Makassar yang menjadi Pintu Gerbang Kawasan Timur Indonesia akan membantu transportasi darat untuk mendukung pertumbuhan ekonomi dalam negeri khususnya di Makassar, mengatasi kemacetan yang sedang berlangsung dan untuk mendukung pergerakan barang. . melayani. Diharapkan dapat menjadi salah satu solusi permasalahan lalu lintas perkotaan. Perubahan yang dicermati yaitu mencakup perubahan di bidang sosial, perubahan bidang ekonomi, dan perubahan aspek lingkungan merupakan dampak yang dialami atau kemungkinan akan terjadi. Riset ini bertujuan untuk menganalisis perubahan dari sisi pengguna jalan terhadap terkait aspek sosial, tinjauan dari segi ekonomi dan ekologis (lingkungan) terkait dengan keberadaan Jalan layang tol di ruas Andi Pangerang Pettarani. Pilihan penggunaan bahan/data yang dipakai dalam penelitian ini adalah data subjek. Bahan untuk survei yang dipergunakan adalah hasil tanggapan pihak yang diwawancarai terhadap pertanyaan tertulis yang disampaikan oleh penulis. Hipotesis diuji dengan perhitungan statistik untuk mengetahui hubungan antar variabel yang relevan. SPSS versi 21.00 digunakan untuk analisis data untuk mengevaluasi model dan hipotesis. Berdasarkan temuan kami, kami dapat melihat variabel mana yang memiliki dampak signifikan terhadap keberadaan Jalan Tol AP Pettarani.
Pengendalian Biaya dan Waktu dengan Metode Earned Value pada Proyek Penyelesaian Gedung Sudirman Office Kecamatan Ujung Pandang Kota Makassar
Authors: Apriansyah Aris , Bachmid Sofyan , Watono Watono , Muin Suriati Abd
Published: June 2023

Proyek pembangunan gedung Sudirman Office Kecamatan Ujung Pandang Kota Makassar dengan nilai kontrak Rp.8.038.735.740,00 dijadwalkan selesai dalam kurun waktu 32 minggu. Dengan adanya keterlambatan selama 6 minggu dari minggu ke-8 hingga minggu ke-14 dikarenakan banyak pekerja tidak hadir seperti terisolasi di daerah dan karantina, maka dilakukan pengendalian waktu sehingga biaya akhir tidak melewati nilai kontrak. Tujuan dari penelitian ini adalah mengetahui besarnya biaya tiga indikator earned value, yaitu BCWS, BCWP, dan ACWP serta menghitung perkiraan besarnya biaya dan waktu yang diperlukan untuk penyelesaian pengerjaan proyek. Data yang didapat dari proyek antara lain Master Schedule proyek, kurva S, Rencana Anggaran Biaya (RAB), laporan mingguan proyek dan biaya aktual proyek. Metode yang digunakan pada penelitian ini adalah metode Earned Value yang didalamnya memadukan unsur biaya dan waktu serta prestasi fisik pekerjaan. Dari hasil analisa diketahui bahwa biaya yang dikeluarkan lebih besar dari biaya yang dianggarkan ditunjukkan dengan nilai CPI = 0,98 dan waktu pelaksanaan lebih lambat dari jadwal rencana ditunjukkan dengan nilai SPI = 0,84. Hasil perhitungan perkiraan biaya akhir proyek sebesar  Rp.8.216.411.445,19 dengan perkiraan waktu penyelesaian 38 minggu, menunjukkan bahwa proyek mengalami keterlambatan 7 minggu dari 32 minggu yang direncanakan.
Value Engineering Sistem Struktur Bangunan Gedung Rumah Sakit Pendidikan Ibnu Sina
Authors: Handayani Rahmat Akbar , Sahir Muh. Syahriadin , Nasution Amriansyah , Ashad Hanafi , Utina Toni
Published: June 2023

Dalam pelaksanaan proyek konstruksi proses pekerjaan dilakukan secara bertahap mulai dari pra-rencana, perencanaan hingga pelaksanaan dengan harapan diperoleh hasil yang optimal. Oleh karena itu perlu adanya teknik manajemen yang dapat digunakan untuk menghasilkan suatu pekerjaan yang dapat mengurangi biaya tanpa mengurangi kualitas pekerjaan. Untuk itu dilakukan studi value engineering pada gedung Rumah Sakit Pendidikan Ibnu Sina untuk mengetahui alternatif komponen struktur yang dapat menghasilkan nilai optimal. Objek penelitian tersebut akan dianalisis dengan menerapkan proses value engineering untuk mencari struktur alternatif yang dapat digunakan sebagai pengganti desain struktur eksisting. Sehingga dengan penerapan metode tersebut diperoleh alternatif dengan modifikasi pada penulangan penampang yang dapat memberikan penghematan hingga 11,38% untuk elemen struktur balok dan kolom. Dengan kontrol tingkat kinerja berdasarkan pushover analysis diperoleh perpindahan atap sebesar 0,151 m baik pada struktur eksisting maupun pada struktur alternatif, dimana keduanya masih berada pada tingkat immediate occupancy sehingga dapat diasumsikan memiliki fungsi yang sama. Dimana biaya yang dibutuhkan untuk struktur eksisting mencapai Rp. 10,444,076,368.95 sementara untuk struktur alternatif biaya yang dibutuhkan hanya mencapai Rp. 9,255,714,884.45.
Dragon Fruit Peel Extract and Encapsulated Catfish Oil Formulation in Gummy Candy with Potential In Vitro Antihyperglycemia Properties
Authors: Aurelia Jovita , Trifena Felicia , Levi Kelvin , Marcella Maria , Septiyani  , Agustinah Widya
Published: June 2023

Red dragon (Hylocereus polyrhizus) fruit peel as household waste was still underutilized although it was high in bioactive compounds with antioxidant and antidiabetic properties. The oil extract of freshwater fish, such as catfish (Pangasius sp.) was high in monounsaturated fatty acids with reported antihyperglycemia properties. The objectives of this study were to encapsulate catfish oil extract, determine the most liked formulation of gummy candy with dragon fruit peel extract and encapsulated fish oil beads content, and analyze the proximate content and in vitro α-amylase inhibition activity of the most liked gummy candy formulation. The methods consisted of dragon fruit peel extraction, encapsulation of catfish oil extract using sodium alginate, gummy candy formulation, sensory evaluation, and analysis of color, proximate, and α-amylase inhibition activity. Twenty five percent w/w of the gummy candy ingredients were composed of the extracts and encapsulation beads at 1:1, 1:3, and 3:1 weight ratios. Encapsulation of the fish oil could mask the fishy odor in the gummy candy. All formulation could be molded into gummy candy perfectly and showed chewy texture. The addition of dragon fruit peel extract could increase the yellowness value, while the fish oil beads decreased the lightness value of the candy. The most liked gummy candy formulation was F3 (ratio 3:1).  It was composed of 54.47% water, 1.59% db ash, 5.77% db fat, 1.82% db protein, 36.36% db carbohydrates and showed 46.49% α-amylase inhibition activity.
Changing Movie! Film Commissions as Drivers for Creative Film Industries: the Apulia Case
Authors: Palmi Pamela , Caputo Fabio , Turco Mario
Published: June 2023

The organizational change of Film Commissions in Italy, from service agencies to drivers for the creative film industries, is the result of the ongoing evolution from a state-controlled industry to a new kind of industrial cooperation at territorial level. This research deepens the Apulia case and shows both the increasing leading role of Film Commissions in the Apulia region – in order to improve the competitiveness of the system – and the positive effects on the territory measured through the analysis of audiovisual firms. Finally, the research shows the strengthening of community engagement thanks to the promotion and support tools (festivals, networks, etc.) for the creation of value.
Stabilizing machine learning models with Age-Period-Cohort inputs for scoring and stress testing
Authors: Breeden Joseph L. , Leonova Yevgeniya
Published: June 2023

Machine learning models have been used extensively for credit scoring, but the architectures employed suffer from a significant loss in accuracy out-of-sample and out-of-time. Further, the most common architectures do not effectively integrate economic scenarios to enable stress testing, cash flow, or yield estimation. The present research demonstrates that providing lifecycle and environment functions from Age-Period-Cohort analysis can significantly improve out-of-sample and out-of-time performance as well as enabling the model's use in both scoring and stress testing applications. This method is demonstrated for behavior scoring where account delinquency is one of the provided inputs, because behavior scoring has historically presented the most difficulties for combining credit scoring and stress testing. Our method works well in both origination and behavior scoring. The results are also compared to multihorizon survival models, which share the same architectural design with Age-Period-Cohort inputs and coefficients that vary with forecast horizon, but using a logistic regression estimation of the model. The analysis was performed on 30-year prime conforming US mortgage data. Nonlinear problems involving large amounts of alternate data are best at highlighting the advantages of machine learning. Data from Fannie Mae and Freddie Mac is not such a test case, but it serves the purpose of comparing these methods with and without Age-Period-Cohort inputs. In order to make a fair comparison, all models are given a panel structure where each account is observed monthly to determine default or non-default.
Mesenchymal stem cells induce dynamic immunomodulation of airway and systemic immune cells in vivo but do not improve survival for mice with H1N1 virus-induced acute lung injury
Authors: Tan Yuan , Wang Yan , Souza-Moreira Luciana , Wang Chi , Murray Aidan B. P. , Salkhordeh Mahmoud , Florian Maria , McIntyre Lauralyn , Stewart Duncan J. , Mei Shirley H. J.
Published: June 2023

Introduction: Influenza A virus (IAV)-induced acute lung injury (ALI) is characterized by pronounced proinflammatory activation and respiratory lung dysfunction. In this study, we performed deep immune profiling on airway and circulating immune cells to examine the effect of immunomodulation and therapeutic outcomes of mesenchymal stem cells (MSCs) therapy in mice with IAV-induced ALI.

Methods: Animals were inoculated intranasally with H1N1 IAV, followed by intravenous administration of vehicle, or human clinical-grade, bone marrow-derived MSCs 24-h later, and monitored for six days to evaluate the survival. In another set of animals, bronchoalveolar lavage (BAL) fluid and whole blood were collected three days after infection for flow or mass cytometry (CyTOF) immune profiling analysis.

Results: Immune cell population and phenotypic shifts in blood were mapped by CyTOF. Increases were observed in granulocytes and myeloid-derived cells in blood from vehicle-treated animals. While MSC treatment accentuated changes in these populations, naïve B, antibody-secreting B cells, and T cells were decreased in MSC-treated animals at day 3. Compared to sham animals, IAV infection induced a significant 5.5-fold increase in BAL total cell counts, including CD4+ and CD8+ T cells, CD19+ B cells, CD11b + Ly6G + neutrophils, and CD11b + Ly6C + monocytes. MSC treatment significantly decreased BAL total cell counts in IAV-infected mice, specifically the number of infiltrating CD4+ T cells and CD11b + Ly6G + neutrophils. In contrast, there were increases in CD8+ T cells, B cells, and monocytes in the alveolar space in MSC-treated animals. Phenotypic immune cell profiling of blood and BAL revealed a significantly higher proportion of the monocyte population with the M2 phenotype (CD206) in MSC-treated animals; however, this failed to confer protective effects in the survival of infected mice or reduce viral titer in the lung. Further investigation revealed that MSCs were susceptible to IAV infection, leading to increased cell death and potentially affecting their efficacy.

Conclusion: These findings provided in vivo evidence that MSCs promote the selective recruitment of immune cells to the site of infection during IAV infection, with reductions in proinflammatory phenotypes. However, MSCs offered no survival benefit in IAV-infected animals, possibly due to MSCs’ H1N1 IAV susceptibility and subsequent cell death.
Hypertension, smoking, and preexistence of multiple cardiac risk factors correlate with carfilzomib-induced cardiovascular adverse events in a racially diverse population
Authors: Doran Stacey , Mysore Manu , Kassaian Seyed Ebrahim , Kotloff Ethan , Kamangar Farin , Emadi Ashkan , Apata Jummai , Barr Brian
Published: June 2023

Background

Use of the proteasome inhibitor carfilzomib has become a standard of care in patients with relapsed/refractory multiple myeloma. An association between carfilzomib and cardiovascular adverse events has been well documented, but this had not been investigated in a racially diverse population. Black patients in particular are underrepresented in the reported outcomes of treatment with carfilzomib.

Objective

The purpose of this study was to identify risk factors for carfilzomib-associated cardiovascular events in a diverse, single-center population.

Methods

We conducted a retrospective review of 161 patients with multiple myeloma treated with carfilzomib between 2011 and 2020 at the University of Maryland Medical Center. Over half (86) were Black patients, with the remainder (75) being White patients. We did a multivariate analysis to determine risk factors for developing cardiovascular events during treatment with carfilzomib.

Results

There was no statistically significant association with cardiotoxicity and race, gender, or age at first dose of carfilzomib. In multivariable analysis, patients with history of hypertension had a higher risk of cardiotoxicity [adjusted odds ratio (OR): 2.5; 95% CI: 1.1–5.9; P = 0.03] as did those with a history of smoking [OR: 2.8; 95% CI: 1.3–6.4; P = 0.01].

Conclusions

Here we report the largest cohort of Black patients treated with carfilzomib as yet reported. The results of this single center retrospective study show history of hypertension and smoking are associated with carfilzomib associated cardiotoxicity in a diverse patient population. There is a need for well-designed prospective studies enrolling a diverse population to investigate potential interventions to prevent carfilzomib-associated cardiotoxicity.
Advanced perception and control method of harmful gas during construction period of coal tunnel based on DeepAR
Authors: Cao Shengye , Yang Meng , Hu Juyi , Chen Jianzhong
Published: June 2023

Effective real-time treatment and control of harmful gases are key to ensuring the safety of tunnel construction workers. Currently, the monitoring ability of harmful gases is insufficient to match the processing needs, which poses significant risks to the safety of tunnel construction workers. This paper proposes an advanced perception and treatment method for harmful gases during tunnel construction, utilizing the DeepAR algorithm. Real-time monitoring of the concentration and diffusion of harmful gases is conducted, and a harmful gas concentration prediction model is established using the DeepAR algorithm, achieving advanced perception of harmful gases during tunnel construction. The harmful gas treatment plan is developed in advance, and the effectiveness of the proposed method is demonstrated by simulation testing under realistic field scenarios and comparing with other prediction models. The method was applied in a coal mine tunnel in Qinghai Province, achieving an accuracy rate of 94.3%, which is higher compared to those obtained using RNN and LSTM algorithms. Moreover, the computational time is less than 60 s. The method provides timely perception of the concentration distribution of harmful gases in the tunnel and proposes targeted treatment measures, verifying the effectiveness of the prediction model from the perspective of practical engineering application.