bluuebunny/crossref_metadata_2025 huggingface dataset:
Storytelling Research: Implications for the Broader Higher Education System in South Africa
Authors: Masoga Mogomme
Published: August 2023

The present investigation aims at promoting storytelling as a critical research discipline within the broader higher education system in South Africa. During the apartheid era and in democratic South Africa, storytelling was (and is) not part of the agenda for consideration in the broader higher education system. This status quo was due to multifarious factors including a myopic view of traditional scientific research. In the pre-colonial African communities, stories were told in the evening in the rural home around the fire to capture the attention of and educate the younger family members. Members of the community and adults within a family (e.g., mother, father, uncle, aunt, etc.)  usually told stories which drew themes from lived realities. In their entirety, stories were posited towards teaching important lessons about life in general. Some stories were simple fiction-oriented, while others were non-fiction and premised on empirical life actualities. A story would predicate the characters as actual people in a real-life situation. In our modern digital era, some stories are stage-played or dramatised on television. Today, storytelling also involves public speaking by individuals known as “motivational speakers.” Among African societies, most stories featured themes involving a human being with wildlife species such as lion, leopard, baboon and wild rabbit, and many others. To make the discussion on storytelling more vivid and meaningful, an autoethnographic reflection on the story of the man and the leopard was used as an example in this article. In view of the reader-response concept, an articulation of the main ideas unfolding in the story follows the example presented in this paper. The study is based on a narrative analysis as an approach. A narrative analysis comprises literary genre as a theoretical framework.
Conhecimento de estudantes e servidores universitários sobre a Covid-19
Authors: Paixão Mariana Érica da Silva , Silva Maria Eduarda Figueiredo , Nunes Elicarlos Marques , Nogueira Matheus Figueiredo , Ribeiro Luana Carla Santana
Published: August 2023

Objetivo: Analisar o conhecimento em relação à pandemia da covid-19 de estudantes e servidores universitários e fatores associados. Métodos: Pesquisa transversal, descritiva e quantitativa. A coleta dos dados ocorreu de dezembro de 2021 a março de 2022, com 421 estudantes e servidores universitários, utilizando-se um questionário on-line. O armazenamento e a análise dos dados foi realizada no Software SPSS® versão 21.0. Posteriormente, realizou-se análise univariada para avaliação dos fatores associados ao conhecimento relacionado à covid-19, utilizando os testes de Kruskall-Wallis ou Teste Mann-Whitney. Resultados: As pessoas com idade mais avançada, casadas ou em união estável, com alto nível de escolaridade e renda familiar mais elevada, apresentam maior nível de conhecimento, por utilizarem fontes confiáveis de pesquisa e reconhecerem a própria vulnerabilidade e dos seus familiares próximos à infecção pelo novo coronavírus; as pessoas que não apresentam nenhum tipo de comorbidade ou condição específica de risco, apresentam menor nível de conhecimento, o que pode favorecer a sua exposição e infecção ao novo coronavírus. Conclusão: Espera-se que esta pesquisa contribua para o planejamento e a implementação de novas políticas públicas e estratégias de prevenção da doença, em instituições de ensino e em suas respectivas comunidades locais.
Complicações clínicas da apendicite no período gravídico-puerperal
Authors: Freitas Milton Halyson Benevides de , Figueiredo José Luiz de , Menezes Neto Antônio Raphael de , Menezes Pedro Affonso Ferreira de , Campos Netto João de Almeyda , Patriota Hugo Vasconcelos , Sampaio Júlia Cartaxo Ramos , Souza Gabriel Carneiro Ferreira , Carneiro Danyelle Fonseca Rodrigues , Silva Liniker Scolfild Rodrigues da
Published: August 2023

Objetivo: Identificar os principais achados das complicações clínicas da apendicite no período gravídico-puerperal e suas implicações na saúde materno-fetal. Métodos: Trata-se de uma revisão integrativa da literatura. Para a formulação da questão norteadora aplicou-se a estratégia PICo: (P: Pessoas com útero no período gravídico-puerperal; I: Complicações da apendicite; Co: Avaliação clínica). Foi utilizado as bases de dados: Embase, Medical Literature Analysis and Retrieval System Online, SCOPUS, Web of Science, e a biblioteca virtual Scientific Electronic Library Online. Na busca, foram encontrados 3.438 artigos, e destes, n = 6 fizeram parte da pesquisa. Resultados: Assim, foi evidenciado que a dor abdominal durante a gestação configura-se como um motivo frequente que levam gestantes às consultas de urgências, porém, apesar das dores inerentes à gravidez, múltiplas etiologias podem acarretar em uma emergência abdominal. Considerações finais: Assim, compreende-se a necessidade de uma assistência holística e que direcione um diagnóstico claro e fidedigno das complicações clínicas da apendicite em pacientes que estão vivenciando o período gravídico-puerperal. Outrossim, é inevitável que haja um planejamento assistencial para que tenha cobertura dos serviços de saúde para que possam ser supridas as demandas integrais desses pacientes, gerando segurança e confiança no procedimento realizado, evitando danos futuros.
Mammary Rosai-Dorfman disease: Rare benign mimic of breast malignant neoplasm
Authors: Nguyen Troy , Gutema Malem , Ye Jiquing , Backenstoss Martine Susan
Published: August 2023

Rosai-Dorfman disease (RDD), also known as sinus histiocytosis with massive lymphadenopathy, is an uncommon benign disorder characterized by the accumulation of activated histiocytes in affected tissues. While RDD typically involves lymph nodes, it may manifest as extranodal involvement. Breast involvement is an exceedingly rare presentation of this condition with <100 reported cases worldwide. This report presents a case of RDD in a 58-year-old male patient who presented with a palpable breast mass. Mammography and ultrasound imaging studies raised concerns for malignancy, prompting a breast biopsy. Histopathological examination revealed S100-positive pale histiocytes exhibiting emperipolesis, consistent with RDD. The management of extranodal RDD is individualized, as no standardized guidelines are currently available. However, surgical excision is recommended for unicentric breast lesions, which was performed in our case, resulting in complete remission. The patient has remained disease-free under surveillance with computed tomography scans. Our case underscores the importance of considering RDD in the differential diagnoses of breast masses and highlights the utility of surgical excision as an effective treatment option, especially for unicentric breast lesions of RDD.
To the Biography of the Composer Giovanni de Dominicis
Authors: Долгушина М.Г. , Смирнов А.В.
Published: August 2023

В статье излагаются факты биографии итальянского композитора, педагога и писателя Джованни (Ивана) де Доминичиса, работавшего в России в 1809–1830 годах. На основе архивных и литературных источников реконструируются основные вехи его жизни и музыкальной деятельности в Одессе, Москве и Санкт-Петербурге, приводятся сведения о произведениях, написанных им в нашей стране. Рассматриваются главные литературные сочинения де Доминичиса — «Жизнь кавалера Дон Жуана Паесиелло» и «Исторические, политические и дружеские заметки в форме писем... с различными рассуждениями о России». В приложении публикуются сочинения де Доминичиса: сборник камерно-вокальных пьес, а также два фортепианных цикла — Шесть вариаций и рондо на тему из оперы «Волшебная флейта» В. А. Моцарта (ок. 1812 г.) и Шесть маленьких сонат.

The article focuses on the biography of the Italian composer, teacher and writer Giovanni (Ivan) de Dominicis, who worked in Russia in 1809–1830s. On the basis of archival and literary sources, we provide important facts about his life and musical activity in Odessa, Moscow and St. Petersburg. We also take a careful look at his vocal and chamber compositions written during his Russian years. The two main literary works of de Dominicis are considered in detail — “Saggio su la vita del cavalier Don Giovanni Paesiello” and “Memorie istoriche politiche e familiari in forma di lettere su i costumi dei russi ed altre nazioni del Nord”. As an appendix to the article three opuses by de Dominicis are published: the collection of three chamber vocal works and two cycles for pianoforte: “Six Variations et un Rondo” on a theme from the opera “Die Zauberflöte” by W. A. Mozart (circa 1812) and “Six petites Sonates”.
Synthesis, Structural Characterization and Phosphorescence Properties of Trigonal Zn(II) Carbene Complexes
Authors: Koop Stefan , Mrózek Ondřej , Janiak Lars , Belyaev Andrey , Putscher Markus , Marian Christel M. , Steffen Andreas
Published: August 2023

The sterically demanding N-heterocyclic carbene ITr (N,N'-bis(triphenylmethyl)imidazolylidene) was employed for the preparation of novel trigonal zinc(II) complexes of the type [ZnX2(ITr)] (X = Cl (1), Br (2), I (3)), for which the low coordination mode was confirmed in both solution and the solid state. Because of the atypical coordination geometry, the reactivity of 1-3 was studied in detail, using partial or exhaustive halide exchange and halide abstraction reactions to access [ZnLCl(ITr)] (L = carbazolate (4), 3,6-di-tert-butyl-carbazolate (5), phenoxazine (6) and phenothiazine (7)), [Zn(bdt)(ITr)] (bdt = benzene-1,2-dithiolate) (8) and cationic [Zn(2-X)(ITr)]2[BPhF4]2 (X = Cl (9), Br (10), I (11)), all of which were isolated and structurally characterized. Importantly, for all complexes 4-11, the trigonal coordination environment of the ZnII ion is maintained, demonstrating a highly stabilizing effect due to the steric demand of the ITr ligand, which protects the metal center from further ligand association. In addition, complexes 1-3 and 8-11 show long-lived luminescence from triplet excited states in the solid state at room temperature according to our photophysical studies. Our quantum chemical DFT/MRCI calculations reveal that the phosphorescence of 8 originates from a locally excited triplet state on the bdt ligand. They further suggest that the phenyl substituents of ITr are photochemically not innocent but can coordinate to the electron deficient metal center of this trigonal complex in the excited state.
Thermoelectric properties of Pnma and R3m GeS and GeSe
Authors: Zhang Min , Flitcroft Joseph , Guillemot Sophie , Skelton Jonathan
Published: August 2023

With ∼60 % of global energy lost as heat, technologies such as thermoelectric generators (TEGs) are an important route to enhancing the efficiency of energy-intensive processes. Optimising thermoelectric (TE) materials requires balancing a set of interdependent physical properties to meet efficiency, cost and sustainability requirements, and is a complex materials-design challenge. In this study, we demonstrate a fully first-principles modelling approach to calculating the properties and thermoelectric figure of merit ZT and apply it to the orthorhombic and rhombohedral phases of GeS and GeSe. We predict a large ZTmax = 2.12 for n-doped Pnma GeSe at 900 K, which would make it a good match for p-type SnSe in a thermoelectric couple. In contrast to the more usual p-type doping, the electrical conductivity σ is largest along the layering direction, which would combine with the low κlatt to produce a much larger ZTmax > 3 if the growth direction could be controlled. We also predict that p-doped R3m GeS and GeSe can achieve an industrially-viable ZT > 1, through a high σ counterbalanced by a large thermal conductivity, and experiments indicate this can be further improved by alloying. Our results therefore strongly motivate further study of the under-explored Ge chalcogenides as prospective TEs, with particular focus on strategies for n-doping the Pnma phases.
Catalytic DNA Nanocranes for Controlled Protein Modification in Cell Lysate
Authors: Keijzer Jordi , Albada Bauke
Published: August 2023

This paper describes the development and performance of catalytic crane-like DNA nanostructures for the controlled modification of wild-type proteins. We show that the position of the catalyst offers control over the site of modification, and that reversible interactions between the catalytic structure and thrombin enable trigger-responsive modification in complex mixtures.
A new water soluble, highly selective Pyrene-based fluorescent sensor for detection of Fe+3 metal ion
Authors: Chaskar Atul , Chaudhari Aniket , Patil Omkar , Janwadkar Hardik , Ganesan Gokul , Patil Bhimrao
Published: August 2023

In the context of selective detection of Fe+3, we have shed light on the structure-property relationship and successfully synthesized APTS (sodium 8-aminopyrene-1,3,6-trisulfonate) and APSS (sodium (E)-4-hydroxy-3-((pyren-1-ylimino)methyl)benzenesulfonate) molecules having the sulfonate group in order to increase its applicability in neat aqueous samples. Interestingly these water-soluble fluorescent turn-off sensors exhibited excellent selectivity and sensing properties and were able to detect Fe+3 ion in the nanomolar range showing the limit of detection (LOD) 45.6 nM and 45.9 nM, with the binding stoichiometry of 2:1 and 1:1 for APTS and APSS respectively. Further, the binding mechanism study using Density Functional Theory (DFT) is in progress
The Hydrated Structure Factor in Additive Effect on Enantioselective Organocatalytic Transfer Hydrogenation Reactions with Hantzsch Esters
Authors: Gu Liuqun
Published: August 2023

Acid additives were frequently used in amine-catalyzed asymmetric catalysis as a practical strategy for the promotion of reaction activity/selectivity with a reduced amount of chiral catalyst. A fact is that the acid additives were discovered mostly by chance rather than by a logic prediction. Two bioinspired hydrated mechanisms for the organocatalytic transfer hydrogenation reactions were proposed in this work. And the proposed different acid-water-imine hydrated structures involved mechanism could well explain the additive effect supported by the reported experimental data. The new insight shows promise for assisting a logic acid additive screening in cationic imine-mediated asymmetric catalysis.
Hydroalcoholic Extraction of Ipomoea pes caprae Leaf Extract of Antifungal Activity Against Candida albicans
Authors: Shaik Salma , Baba Kudipudi Harinadha , Narasimha Katakam Pavana , Rehamath Mohammed Arshiya , Dharani Paturu , Harshavardhan Polisetty , Kumari Poori Kusuma
Published: August 2023

The current study is to prepare hydroalcoholic extraction of ipomea pes caprae leaf extract of antifungal activity against candida albicans. Ipomoea pes caprae leaves are extracted using a hydroalcoholic solvent in a 1:9 ratio, which consists of 1 part water as well as 9 parts of the alcohol. These plant extracts are used to treat antifungal diseases. The antifungal activity of ipomoea pes-caprae leaf extract and their respective zone of inhibitions were evaluated. From the results, it was confirmed that the hydroalcoholic extract obtained from the leaves of the ipomoea pes caprae demonstrated exceptional activity as compared to that of a typical medication.
CORRELATE OF INVENTORY MANAGEMENT AND ORGANIZATIONAL PERFORMANCE
Authors: Akpoviroro Kowo Solomon , Vareckova Lubica
Published: August 2023

Research background: Inventory management is pivotal in effective and efficient organization. Organizations are faced with the problem of unpredictable performance due to complexities associated with inventory control. This implies that profitability of any organization directly and indirectly is affected by the inventory management system operated. At any level of a firm, inventory is among the largest investment made and therefore logically deserves to be treated as a major policy variable, highly responsive to the plans and style of top management. Therefore, it is essential to study the effect of inventory management on organizational performance. Purpose of the article: The study determined the effect of Economic order quantity performance on operational costs and also examined the effect of production costs on sales turnover. Methods: The paper adopted a survey method. The total population of the study consists of 201 employees of Honeywell Flour Mills Plc Ikeja Lagos Nigeria. 134 copies of questionnaire were given to the respondents to write clearly their views and observations. (SPSS) and (Cronbach’s alpha) was employed. Also descriptive, statistical and content analyses techniques were used in the analysis of the data collected. The study made use of statistical tools such as regression analysis in testing hypotheses and ANOVA which helped in the interpretation of results. Findings & Value added: The study found out that Economic order quantity significantly affects the operational cost. This means that for every 100% change in operational cost, EOQ contributed 21.1%.This implies that EOQ can influence the operational cost. Second, Production cost significantly affects sales turnover. This means that for every 100% change in sales turnover, production cost contributed 31.7%. It shows that production cost can influence sales turnover. The research recommends that Management should put into consideration the degree of control and evaluation of sales turnover, Economic order quantity and operational cost so that these assets can provide liquidity to the organization with ease.
Effect of additional sodium metabisulphite (Na2S2O5) on physico-chemical
characteristics of cashew nut (Anacardium occidentale L) dregs flours
Authors: Arifan F. , Jannah R. , Broto W. , Sapatra E.F. , Prasetyo A.N.F. , Susanti
Published: August 2023

Wheat flour is a food ingredient derived from wheat whose availability in Indonesia must
be imported, while its use is very high. Currently, there are several efforts to substitute
flour from local sources such as flour from tubers and nuts, one of which can be used from
cashew nuts. Developments to produce quality wheat flour continue to be developed in
order to obtain the ideal food product. One way is by adding sodium metabisulfite
(Na2S2O5). The analysis of cashew nut pulp obtained 8.79% fat, 4.94% protein, 8.25%
water, and 2% ash content. The results of the browning index of cashew powder obtained
the best value at 0.6% sodium metabisulfite concentration of 0.364. The water content is
5.375% and the ash content is 2.375%.
Antioxidant profile of red oncom, an Indonesian traditional fermented soyfood
Authors: Surya R. , Romulo A.
Published: August 2023

Red oncom is an Indonesian local soyfood traditionally made from by-products of tofu
industries through a mould fermentation involving Neurospora sp. Red oncom contains
isoflavones and carotenoids, bioactive compounds exerting antioxidant activities. This
study aimed to investigate the antioxidant activities of red oncom produced through
traditional methods compared to unfermented soybeans and tempeh (or tempe), another
Indonesian traditional fermented soyfood. Following red oncom extraction using ethanol
95%, several experiments were conducted, including analysis of isoflavones, carotenoids,
total phenolics, total flavonoids and free radical scavenging activity. Antioxidant activity
appeared to be significantly higher in red oncom than in unfermented soybeans, but lower
in comparison to tempeh (p<0.05). A longer fermentation period was associated with
increased antioxidant activities in red oncom along with decay-related organoleptic issues
appearing at day-4. Interestingly, antioxidant activities were found to be stronger on the
mouldy surface of red oncom compared to its inner side, mainly due to the presence of
moulds biosynthesizing carotenoids and hydrolyzing isoflavone glucosides into aglycones.
Thus, it was suggested that the potential antioxidative properties of red oncom could
support its development as a functional food.
The Orang Asli in Malaysian Media: An Approach from Transitivity Perspective
Authors:   School of Languages, Literacies, and Translation, Universiti Sains Malaysia, Malaysia, Ka Chun Wong , Jamal Marlina ,   School of Languages, Literacies, and Translation, Universiti Sains Malaysia, Malaysia
Published: August 2023

The Orang Asli are recognised as the country’s indigenous peoples that are often perceived as a marginalised community in the country. The present study aims to conduct a comparative study by comparing the ways the Orang Asli are being represented by the mainstream (The Star) and alternative media (Malaysiakini) from a CDA perspective. In this study, a total of six news reports were selected from The Star and Malaysiakini respectively and were analysed under Fairclough’s Three-Dimensional Framework (1995) serving as the foundational framework. The framework demonstrates the integration of Halliday and Matthiessen’s (2014) transitivity analysis and van Dijk’s (1998) Theory of Ideology in analysing the transitivity structures as well as the ideological construction of the Orang Asli in the news reports. The findings revealed that Malaysiakini represented the Orang Asli more frequently than The Star. However, the overall findings indicate that the Orang Asli are still portrayed in a stereotypical and pejorative manner. In essence, the study reveals the ideological representation of the Orang Asli by both mainstream and alternative media as illustrated by the transitivity patterns that surfaced from the analysis.
Constructing a Theoretical Framework for Assessing Community Disaster Mitigation and Preparedness
Authors:   National Defence University of Malaysia, Malaysia, Mohd Zainol Noor Azmi , Taib Khairul Nizam ,   National Defence University of Malaysia, Malaysia, Sofian Mohd Haniff ,   National Defence University of Malaysia, Malaysia, Mohd Zahari Haliza ,   National Defence University of Malaysia, Malaysia, Zainol Abidin Zahimi ,   National Defence University of Malaysia, Malaysia, Mohd Sarkam Mohd Kamarul Amree ,   National Defence University of Malaysia, Malaysia
Published: August 2023

This exploratory study was carried out to gather the essential components for developing a theoretical framework for measuring community awareness of disaster management. This is to provide an effective instrument for educating individuals, communities and organizations about awareness regarding disaster preparedness and prevention in order to conduct a more thorough investigation. This theoretical framework was developed using a combination of literature research, interviews, focus group discussions, and observation. The study found that demographic characteristics, knowledge of disaster, disaster experience, attitude and awareness of disaster mitigation, exposure to mitigation and preparation as well as preparedness to respond to disaster are the main elements of the independent variables of this conceptual framework. These elements will affect community’s perceptions on managing disaster response, and thus affects individual, community and organization’s mitigation and preparedness for disaster. A proposed conceptual model for measuring the level of awareness for mitigation and preparedness in disaster management is presented. This framework implies that in preparing for disaster, people of different social context may perceive disaster differently and may even affect disaster mitigation and preparedness contrarily.
Being 'Good' in the Classroom: Whiteness and Moral Liminality in the 2023 Aotearoa New Zealand Histories Curriculum
Authors:   , Griggs Georgia
Published: August 2023

This thesis explores how Year 10 social studies students and teachers at Kāpiti College, a secondary school in the North Island of New Zealand, are affected emotionally by whiteness and the White desire to be ‘good’ when learning about colonisation. The influence of whiteness is invisibilised and normalised in the 2023 Aotearoa New Zealand histories curriculum, influencing students and teachers to think of whiteness as ‘neutral’. The new curriculum was introduced to primary and secondary schools in 2023 and was adopted early by Kāpiti College in 2022. Emotional reactions to colonial topics and the effect of whiteness in New Zealand schools have been the subjects of previous research (MacDonald, Funaki, and Smith 2021; MacDonald 2020; Manning 2018; Bell and Russell 2021; MacDonald and Kidman 2021; Harcourt 2020). My research builds on this through an investigation of the influence of the 2023 Aotearoa New Zealand histories curriculum in maintaining and obscuring whiteness. Data was collected over eight weeks of fieldwork with five Year 10 social studies classes at Kāpiti College, using classroom participant observation, teacher semi-structured interviews, one lunchtime focus group with students, and an anonymous student survey. This thesis explores the effect that the dominance of whiteness had on the emotional responses of my participants. This included Pākehā students and teachers and their desire to maintain White innocence, tauiwi students who sometimes bought into that whiteness and did not see their settler stories reflected in the classroom, and Māori students whose anger and sense of injustice were silenced by whiteness.

Using Thomassen’s (2014) discussion of liminality, Fassin’s (2013) discussion of resentment and ressentiment, Applebaum’s (2010) discussion of whiteness, and Abraham and Torok’s (1986) cryptonomy, I argue that teachers and students experience varying types of discomfort. These include the desire to be ‘good’ and the resulting moral liminality which influences them to self-censor and become silent. Pākehā teachers and students are unsure how to be ‘good’ in response to the violent histories of colonisation, attempting to suppress uncomfortable emotions within the classroom environment, thus maintaining whiteness and coloniality through silence. Māori students’ emotional expressions are limited by White silences and the omission of Māori resistance histories, disregarded in the name of ‘neutrality’.
РАЗВИТИЕ ХАРАКТЕРИСТИК ОСНОВНЫХ ФАКТОРОВ КОНКУРЕНТОСПОСОБНОСТИ ПРОМЫШЛЕННЫХ ПРЕДПРИЯТИЙ
Authors: Карамышев Антон Николаевич
Published: August 2023

Статья посвящена исследованию развития основных факторов конкурентоспособности промышленных предприятий под влиянием научно-технического прогресса. В ходе проведения исследования и подготовки статьи были использованы научный, аналитический, сравнительный и обобщенный (для выявления и анализа факторов конкурентоспособности) методы; для представления результатов исследования применена табличная визуализация. Были выявлены следующие факторы конкурентоспособности: производственные, информационные и коммуникационные технологии, подходы к управлению персоналом и созданию организационных структур, развитие систем обеспечения качества продукции. Проведен анализ развития данных факторов в динамике с целью обеспечения возможности комплексной оценки конкурентоспособности промышленного предприятия.
Penerapan Konsep Zero Delta Run-Off pada Perumahan Tataka Puri, Kabupaten Tangerang
Authors: Ayu Avila Warsaning , Andajani Sih
Published: August 2023

ABSTRAKPerumahan Tataka Puri merupakan salah satu kawasan berkembang di Kabupaten Tangerang. Perlu diperhatikan masalah hidrologi yang mungkin akan terjadi dikarenakan pada awalnya daerah ini merupakan daerah resapan air, sehingga dibutuhkan perencanaan yang baik untuk sistem drainasenya. Untuk itu akan direncanakan konsep zero delta run off dengan teknologi ekodrainase, agar tidak menambah beban drainase menuju outlet. Dicobakan 5 skenario sistem drainase pada penelitian ini, skenario 1 (saluran drainase konvensional), skenario 2 (saluran drainase dengan kolam retensi), skenario 3 (saluran drainase dengan bioretensi), skenario 4 (saluran resapan) dan skenario 5 (kombinasi bioretensi dan kolam retensi). Dengan acuan debit banjir 5 tahun sebelum kawasan terbangun sebesar 0,331 m3/detik, dari 5 skenario yang diteliti terdapat 2 skenario yang memenuhi konsep zero delta run off, yaitu skenario 2 dan skenario 5 dengan debit banjir 5 tahun pada perumahan dapat ditampung seluruhnya dengan teknologi ekodrainase sehingga tidak ada debit banjir menuju outlet.Kata kunci: zero delta run off, ekodrainase, debit banjir kawasan ABSTRACTTataka Puri Housing is one of the developing areas in Tangerang Regency. It is necessary to pay attention to hydrological problems that may occur because initially this area was a water catchment area in the form of rice fields and gardens, so good planning for the drainage system is needed. For this reason, a zero delta run off concept will be planned, so as not to increase the drainage load to the outlet. 5 scenarios of the drainage system were tested in this study, scenario 1 (conventional drainage channels), scenario 2 (drainage canals with retention ponds), scenario 3 (drainage canals with bioretention), scenario 4 (infiltration canals) and scenario 5 (combination of bioretention and ponds). retention). With reference to the 5-year flood discharge before the built-up area was 0.331 m3/second, from the 5 scenarios studied there were 2 scenarios that met the zero delta run off concept, scenario 2 and scenario 5 with 5-year flood discharge in housing that could be accommodated entirely with ecodrainage technology so there is no flood discharge to the outlet.Keywords: zero delta run off, ecodrainage, area flood discharge
Analisis Perbandingan Biaya Penggunaan Steel Box Girder Berdasarkan Variasi Jumlah dan Dimensi (Studi Kasus: Jembatan Cimanuk Maktal)
Authors: Hazairin Hazairin , Widyaningsih Euneke , Sakinah Nafisah Noor
Published: August 2023

ABSTRAKBiaya merupakan salah satu hal penting dalam perencanaan konstruksi. Faktor utama yang mempengaruhi biaya adalah dimensi dan jenis material konstruksi. Penentuan dimensi dan jenis material beracuan pada persyaratan yang berlaku. Namun persyaratan tersebut hanya memberikan rentang minimum dan maksimum. Maka perlu dilakukan perbandingan biaya terhadap rentang dimensi tersebut. Dalam kasus ini perhitungan struktur yang dilakukan adalah perhitungan girder jembatan. Dilakukan perhitungan biaya pada 4 variasi dimensi steel box girder. Dari hasil analisis didapatkan girder  dengan dimensi 2 x 2 meter sebanyak 2 buah girder membutuhkan biaya sebesar Rp1.835.431.964,00. Dimensi 2,3 x 2,3 meter sebanyak 2 buah girder membutuhkan biaya sebesar Rp2.115.116.834,00. Untuk dimensi 1,5 x 1,6 meter, terdapat 3 buah girder dan membutuhkan biaya sebesar Rp2.294.289.955,00. Dimensi 1 x 1,2 meter membutuhkan sebanyak 4 buah girder dengan biaya sebesar Rp2.377.321.400,00. Maka girder dengan biaya paling rendah adalah girder dengan dimensi 2 x 2 meter.Kata kunci: steel box girder, estimasi biaya, perancangan struktur ABSTRACTCost is one of the most important things in construction planning. The main factors that affect the cost are the dimensions and the types of construction materials. Determination of dimensions and types of materials refers to the standard. However, the standard only provide the minimum and maximum range of dimension. So it is necessary to compare the costs from the range of dimensions. In this case the calculation of the structure which conducted is the calculation of the bridge girder. Cost calculations were conducted on 4 variations of the steel box girder dimensions. From the analysis, it was found that 2 girders with dimension of 2 x 2 meters require a cost of Rp1,835,431,964,00. Dimension of 2.3 x 2.3 meters as many as 2 girders require a cost of Rp2.115.116.834.00. For the dimension of 1.5 x 1.6 meters, there are 3 girders and they costs Rp2,294,289,955.00. Dimension of 1 x 1.2 meters need 4 pieces of girders and require a cost of Rp2,377,321,400.00. To conclude, the girder with the lowest cost is the girder with the dimension of 2 x 2 meters.Keywords: steel box girder, cost estimation, structure design
Perbandingan Metode Fellenius dan Bishop pada Stabilitas Lereng Bendungan Leuwikeris dengan Bantuan Aplikasi Komputer
Authors: Wardhanu Satrio , Kusumastuti Dyah Pratiwi
Published: August 2023

ABSTRAKBendungan Leuwikeris merupakan bendungan tipe urugan batuan sehingga memiliki kerentanan terhadap bahaya keruntuhan akibat beban material penyusun maupun gaya-gaya luar yang terjadi. Hal tersebut yang mendasari perlunya perhitungan stabilitas lerang bendungan dalam perencanaannya. Analisis stabilitas lereng tubuh bendungan menggunakan bantuan aplikasi komputer dengan membuat simulasi kondisi muka air dan menerapkan kondisi gempa OBE. Simulasi kondisi muka air yang ditinjau dalam analisis adalah kondisi muka air kosong atau setelah kosntruksi, kondisi muka air normal, kondisi muka air banjir dan kondisi muka air surut cepat. Berdasarkan hasil analisis diperoleh bahwa angka keamanan terbesar tanpa penerapan gempa dibagian hulu bendungan adalah 3,251 sedangkan  dibagian hilir bendungan 2,657. Untuk angka keamanan lereng tubuh bendungan terbesar dengan penerapan gempa kondisi OBE dibagian hulu bendungan adalah 2,262 dan dibagian hilir bendungan adalah 1,868. Secara keseluruhan angka keamanan lereng tubuh bendungan dalam kondisi aman dan telah memenuhi atau berada diatas batas yang disyaratkan.Kata kunci: stabilitas lereng, tubuh bendungan, angka keamananABSTRACTThe Leuwikeris dam is a rockfill type so it has a vulnerability to the danger of collapse due to the load of the constituent materials and external forces that occur. This is what underlies the need for calculating the slope stability in its design. Analysis of the slope stability using computer applications by simulating water level conditions and applying earthquake conditions. Simulations of water level conditions that are reviewed in the analysis are after construction, normal, floods and rapid drawdown conditions. Based on the results of the analysis, it was found that the greatest safety factor without an earthquake condition in the upstream of the dam was 3.251 while the downstream was 2.657. For the safety factor of the largest dam slope with the application of an earthquake condition upstream of the dam is 2.262 and downstream is 1.868. Overall, the safety factor for the slopes of the dam is in a safe condition and has met or is above the required limits.Keywords: slope stability, dam, safety factor
Analisis Pushover terhadap Ketidakberaturan Horizontal pada Struktur Gedung Baja Komposit
Authors: Desimaliana Erma , Diredja Nessa Valiantine , Syahputra Rizky
Published: August 2023

ABSTRAKKota Bandung merupakan salah satu daerah dengan potensi bencana cukup tinggi yang disebabkan oleh alam terutama gempa bumi. Gempa bumi dapat menyebabkan terjadinya kerusakan baik struktural maupun nonstruktural pada gedung. Penggunaan material baja komposit pada elemen kolom menjadi solusi untuk mengatasi terjadinya kerusakan struktur gedung akibat beban gempa, karena memiliki kekuatan dan daktilitas yang tinggi. Penelitian ini bertujuan untuk menganalisis tingkat kinerja struktur gedung baja dengan kolom komposit terhadap ketidakberaturan horizontal menggunakan analisis pushover berdasarkan SNI 1726:2019 dan FEMA-356. Pemodelan gedung apartemen 10 lantai dengan variasi denah U, H dan L pada software ETABS. Hasil penelitian menunjukkan bahwa gedung baja komposit berbentuk denah U yang paling efektif dalam meredam beban gempa karena memiliki gaya geser dasar maksimum arah X sebesar 10.482,22 kN dan arah Y sebesar 10.498,57 kN serta drift maksimum arah X sebesar 0,944 dan arah Y sebesar 0,910. Selain itu, denah U juga dikategorikan tanpa ketidakberaturan torsi dengan tingkat kinerja struktur dikategorikan aman yaitu Immediate Occupancy (IO) berdasarkan FEMA-356.Kata kunci: tingkat kinerja, ketidakberaturan horizontal, gedung baja komposit, analisis pushover ABSTRACTBandung city is one of high potential natural disaster areas, especially earthquakes. Earthquakes can occur either structural or nonstructural damage to buildings. The use of composite steel material in column elements is a solution to overcome building structure damages due to earthquake loads, because of its high strength and ductility. The study aimed to analyze the performance point of steel building structures with composite columns against horizontal irregularities using pushover analysis based on SNI 1726:2019 and FEMA-356. Modeling of 10-story apartment buildings with variations of U, H and L floor plans on ETABS software. The results show that U floor plans composite steel buildings are the most effective in dampening earthquake loads with maximum base shear forces of X and Y direction is 19,482.22 kN and 10,498.57 kN, and maximum drift of X and Y direction is 0.944 and 0.910. In addition, U floor plans also categorized without torsional irregularity and Immediate Occupancy (IO) for structural performance points based on FEMA-356.Keywords: performance point, horizontal irregularities, composite steel buildings, pushover analysis
Perkuatan Fondasi pada Struktur Tower ATC di Kota Bandar Lampung
Authors: Kamaludin Kamaludin , Pratiwi Desti Santi
Published: August 2023

ABSTRAKFondasi merupakan bagian struktur bawah yang harus memiliki kestabilan yang baik selain kesestabilan struktur atas. Salah satu fungsi fondasi berfungsi untuk menyalurkan beban layan dari struktur atas dan beban dari fondasi, kemudian diteruskan ke dalam tanah yang memilki daya dukung. Pada pembangunan tower ATC direncanakan kedalaman bored pile sejauh 10 m di bawah permukaan tanah, namun pada tahap pelaksanaan oleh kontraktor hanya dilaksanakan 6 m. Penelitian ini meninjau kembali daya dukung dan menentukan solusi perkuatan fondasi akibat perubahan kedalaman pada tahap pelaksanaan. Analisis dilakukan dengan cara melihat kembali gaya yang diterima oleh fondasi akibat beban layan struktur atas dan menghitung deformasi dengan menggunakan metode elemen hingga. Hasil analisis ini menunjukkan bahwa perubahan kedalaman yang dilaksanakan mengakibatkan terjadinya defleksi lateral maksimum sebesar 9,2-26,8 mm dan penurunan maksimum sebesar 42 mm. Perkuatan fondasi yang dapat dilakukan yaitu dengan cara penambahan sebanyak 2 bored pile untuk kelompok SW1, serta kelompok SW2 dan SW3 masing-masing sebanyak 1 bored pile. Berdasarkan hasil analisis terlihat bahwa dengan adanya penambahan perkuatan fondasi mampu mengurangi penurunan sebesar 22,9%-57,1% dan defleksi lateral sebesar 37,5%-42,9%.Kata kunci: bored pile, daya dukung, defleksi lateral, metode elemen hingga, perkuatan fondasi ABSTRACTThe foundation is part of the lower structure that must have good stability besides the upper structure. One of the foundation’s functions is transmitting the service load from the superstructure and the load from this foundation into the supporting soil below it. In the construction of the ATC tower, it is planned that the depth of bored pile is 10 m, but at the implementation stage is only carried out as deep as 6 m. This study reviews the bearing capacity as a result of changes in depth applied by the contractor, and determines the solution for the underlying retrofit solution due to implementation changes. The analysis is carried out by reviewing received forces originating from the superstructure and deflection’s magnitude using finite element method. The analysis results show that the maximum lateral deflection is 92.2-26.8 mm and settlement is 42 mm not only occurs due to depth changes but also exceeds the allowable deflection. The solution to reinforce the foundation is adding 2 points to the pile group SW1 and 1 point to the pile group SW2 and SW3. Based on the analysis result of the addition of foundation reinforcement can decrease settlement by 22.9%-57.1% and lateral deflection by 37.5%-42.9%.Keywords: bored pile, bearing capacity, lateral deflection, finite element method, foundation reinforcement
Potensi Pengembangan Persyaratan Standar Jalur Evakuasi dan Titik Kumpul pada Bangunan Sekolah di Indonesia
Authors: Wimala Mia , Candra Axel Oktarino , Setiawan Theresita Herni
Published: August 2023

ABSTRAKJalur evakuasi dan titik kumpul merupakan bagian yang krusial keberadaannya dalam kegiatan evakuasi bencana. Hal ini berlaku terutama pada bangunan sekolah di mana mayoritas pengguna bangunan adalah siswa di bawah umur yang masih mengandalkan orang dewasa dalam berbagai aspek. Sampai saat ini, standar yang berlaku di Indonesia masih memerlukan pembaharuan untuk hasil yang lebih optimal. Penelitian ini bertujuan untuk mengidentifikasi potensi pengembangannya berdasarkan Permen PUPR No. 14 tahun 2017 dan IBC 2018 edition. Penelitian kualitatif ini mengetengahkan kajian literatur yang sangat mendalam mengenai jalur evakuasi dan titik kumpul. Parameter yang dihasilkan dari langkah sebelumnya telah divalidasi oleh beberapa ahli yang terdiri dari akademisi, peneliti dan praktisi di bidang kebencanaan, serta BNPB Provinsi Jawa Barat. Penelitian ini berhasil merumuskan tujuh aspek yang berpotensi digunakan untuk modifikasi standar yang sedia ada, dan enam aspek tambahan untuk menyempurnakannya.Kata kunci: jalur evakuasi, titik kumpul, bangunan sekolah ABSTRACTEvacuation routes and assembly points are crucial parts in disaster evacuation. It applies especially to school buildings where the majority of building users are underage who still rely on adults in various aspects. Improvement is still need to be made to the existing standards for more optimal results. Therefore, this research aims to identify the potential for development based on the Regulation of the Minister of Public Works and Public Housing No. 14 year 2017 and IBC 2018 edition. This qualitative research presents a very in-depth literature review on the requirements of evacuation routes and assembly points. The parameters generated from the previous step have been validated by several experts consisting of academics, researchers and practitioners in the field of disaster management, as well as the BNPB of West Java Province. This research succeeded in formulating seven aspects which potentially to be used for modification, and six additional aspects for the improvement of the existing standard.Keywords: evacuation route, assembly point, school building
Assesment dan Perkuatan Struktur Gedung Studi Kasus: Bangunan Gedung UPTD PPD Dispenda Samsat Malimping
Authors: Ilham Ilham , Annisa Annisa
Published: August 2023

ABSTRAKLatar belakang dilakukannya penelitian ini dikarenakan hasil uji kuat tekan sampel beton umur 28 hari dan hasil uji kuat tekan sampel beton core drill dari struktur eksisting memiliki nilai yang jauh di bawah nilai kuat tekan rencana serta nilai kapasitas kolom tidak mencukupi untuk memikul beban rencana. Metode yang digunakan dalam penelitian ini yaitu dengan cara investigasi lapangan (pengamatan visual dan pengambilan sampel uji core drill), sedangkan untuk perkuatan struktur direkomendasikan dengan cara penerapan metode jacketing. Pemodelan struktur gedung dilakukan dengan bantuan program komputer berbasis metode elemen hingga. Pemeriksaan terhadap struktur eksisting berdasarkan dua kondisi peraturan gempa, yaitu SNI 1726-2012 dan SNI 1726-2019. Hasil dari pemeriksaan menunjukkan bahwa beban rencana yang terjadi melebihi kapasitas kolom, baik pada kondisi DED Struktur (perencanaan) maupun pada kondisi eksisting lapangan (pelaksanaan), sehingga perlu dilakukan perkuatan struktur agar diperoleh hasil pemeriksaan terhadap kapasitas penampang struktur yang memenuhi syarat SNI 1726-2019 dan SNI 2847-2013. Oleh karena itu, dapat disimpulkan bahwa perkuatan dengan metode jacketing dapat meningkatkan kapasitas kolom terhadap beban rencana. Hal ini ditunjukkan dengan nilai rasio Demand vs Capacity (D/C) pada kolom perkuatan jacketing kurang dari 1 (satu).Kata kunci: struktur gedung, perkuatan struktur, metode jacketing ABSTRACTThe background for this research is because of 28-days-old concrete compressive strength test and core drill concrete compressive strength test from the existing structure which has a value far below the design compressive strength and the column capacity is not sufficient to carry the design load. The method used in this research is a field investigation (by visual observation and by taking core drill test samples).  Meanwhile, for structural reinforcement, it is recommended to apply the jacketing method. Building structure modeling is done with the help of a computer program based on the finite element method. Investigation of the existing structure is based on two conditions of earthquake regulations, SNI 1726-2012 and SNI 1726-2019. The inspection results show that the design load exceeds the column capacity in the structural DED condition (planning) and the existing field conditions (implementation). After strengthening the structure, the results of the investigation of the structural cross-sectional capacity concerning SNI 1726-2019 and SNI 2847-2013 meets the requirements. Therefore, it can be concluded that jacketing reinforcement method can increase the column capacity against the design load. This is indicated by the Demand vs. Capacity (D/C) ratio in the jacketing reinforcement column is less than 1 (one).Keywords: building structure, structural reinforcement, jacketing method
Evaluasi Struktur Atas Jembatan Kereta Api WTT dengan Modifikasi Lebar Jalan Rel Standard Gauge
Authors: Nuranita Badriana
Published: August 2023

ABSTRAKPenelitian ini mengevaluasi kapasitas struktur atas Jembatan KA WTT (Welded Through Truss) Tipikal bentang 42 meter dengan modifikasi pada bagian lebar jalan rel atau lebar sepur. Desain Jembatan yang ada saat ini diperuntukkan untuk lebar sepur 1067 mm, sedangkan untuk lebar sepur 1435 mm terjadi perubahan lebar jembatan dari 4,9 meter menjadi 5,5 meter. Evaluasi ditinjau berdasarkan analisis pada nilai defleksi jembatan dan rasio kapasitas. Hasil analisis menunjukkan defleksi maksimum jembatan sebasar 30,7 mm tidak melebihi defleksi izinnya yakni 42 mm sehingga masih memenuhi persyaratan. Namun berdasarkan hasil pengecekan rasio kapasitas, terjadi overstress pada beberapa batang seperti pada rangka/tiang ujung, gelagar memanjang dan gelagar melintang jembatan, sehingga dilakukan perencanaan struktur baru melalui modifikasi pada dimensi profil penampang guna menghasilkan desain jembatan yang memenuhi kriteria kekuatan dan kekakuan.Kata kunci: jembatan KA, rangka baja, WTT, sepur 1435 mm ABSTRACTThis study evaluated the capacity of the upper structure of the WTT (Welded Through Truss) Railway Bridge typical for 42 meters span with railway track gauge modification. The current bridge design is intended for a narrow gauge (1067 mm), while for a standar gauge (1435 mm) there is a change of the bridge width from 4,9 meters to 5,5 meters. The evaluation is reviewed based on the analysis on the bridge deflection value and capacity ratio. The results show that the maximum deflection of the bridge is 30,7 mm which does not exceed the allowable deflection (L/1000) so that adequate. However, based on the results of the capacity ratio, there is overstress on several beams such as the end post, stringers and floor beams. Therefore, a new or modified structure is required to get a bridge design with full strength and stiffness criteria.Keywords: railway bridges, steel truss, WTT, 1435 mm track gauge