bluuebunny/crossref_metadata_2025 huggingface dataset:
Conformational landscapes of rigid and flexible molecules explored with variable temperature ion mobility-mass spectrometry
Authors: Wang Xudong , Norgate Emma , Dai Junxiao , Benoit Florian , Kalapothakis Jason , Bristow Anthony , England Richard , Barran Perdita
Published: February 2024

Understanding the effect of temperature to the structural integrity and dynamics of proteins has relevance for many areas including biotechnology and the maintenance of a stable food supply for the climate emergency. The methods that can explore changes in structure as a function of sub-ambient temperature are scant, and yet many drugs are stored at such temperatures. Here we show how variable temperature ion mobility-mass spectrometry (VT-IM-MS) can provide the role of temperature on conformational landscapes in the form of collision cross sections at discrete temperatures. To delineate collision effects from structural change we report measurements made on four molecules that possess different degrees of rigidity namely: poly (L-lysine) (PLL) dendrimer, ubiquitin, β-casein and α-synuclein from 190-350K. We show that the PLL dendrimer varies with temperature consistent with collision theory, and conclude, as expected, its structure does not alter significantly over this range. By contrast, the structure of each protein is altered by the temperature of the drift gas, with notable unfolding to all charge states at 350 K and also at 250 K, following predicted in vitro stability curves, and with conformational variation that gives qualitative insights to the effect of temperature on the free energy landscape of these proteins. We also show that we can kinetically trap unfolding intermediates at drift temperatures of 210 K and 190 K on a millisecond experimental time scale. For alpha-synuclein, the 13+ ions present two distinct conformers and VT-IM-MS measurements allow us to calculate the transition rate and activation energies for conversion between these. These data exemplify the capability of VT-IM-MS to provide insights to thermodynamics involved in conformational restructuring.
Persistent Luminescence Nanosensors: A Generalized Optode-based Platform for Autofluorescence-free Sensing in Biological Systems
Authors: Sodia Tyler Z. , Tetu Hanna L. , Saccomano Samuel C. , Letch Elizabeth G. , Branning, Jr. John M. , Mendonsa Adrian A. , Vyas Shubham , Cash Kevin J.
Published: February 2024

Fluorescent nanosensors have drastically progressed our ability to accelerate diagnostics and quantify cellular dynamics in real time. Their modular assembly allows for facile sensor tuning, leading to a large expansion of analytes and systems that can be analyzed. Still, separating sensor signals from background optical signatures remains a major hurdle in the field. Exploiting this modular synthesis, we merged optode-based sensing with near-infrared emitting ZnGa2O4:Cr3+ persistent luminescence nanoparticles (PLNPs) to create functional nanocompo- sites for autofluorescence-free “glow-in-the-dark” sensing. We hydrophobically modified the PLNP surface with covalently bound ligands and incorporated the PLNPs into the polymeric core of optode-based nanoparticles. We demonstrate persistent luminescence nanosensors (PLNs) for five different analytes (K+, Na+, Ca2+, pH, and O2) based on two different sensing mechanisms. The PLNs allowed us to achieve autofluorescence-free quantification of K+ in fetal bovine serum and ratiometric metabolic monitoring of microbial samples with time-resolved luminescence acquisition. We foresee that this approach will allow for high signal-to-noise ratios while sensing in optically challenging samples.
Quantum-quantum and quantum-quantum-classical schemes with projection-based-embedded $GW$-Bethe--Salpeter Equation
Authors: Sundaram Vivek , Baumeier Björn
Published: February 2024

We present quantum-quantum and quantum-quantum-classical schemes based on many-body Green's functions theory in the $GW$ approximation with the Bethe--Salpeter equation ($GW$-BSE) employing projection-based-embedding (PbE). Such approaches allow defining active and inactive subsystems of larger, complex molecular systems, with only the smaller active subsystem being explicitly treated by $GW$-BSE offering significant computational advantages. However, as PbE can modify the single-particle states in the ground state calculation and screening effects from inactive region are not automatically included in $GW$-BSE, results from such PbE-$GW$-BSE calculations can deviate from a full-system reference. Here, we scrutinize in detail, e.g., the individual and combined effects of different choices of active regions, the influence of screening from the inactive region, and strategies for basis set truncation on frontier orbital and near-gap electron-hole excitation energies. As prototypical systems, we consider a diketopyrrolopyrrole bicyclic ring including side-chains, a polarity-sensitive dye (prodan) in aqueous environment, and a $\pi$-stacked dimer of benzene and tetracyanoethylene in water, respectively, covering a variety of excitation characters in molecular systems with complex chemical environments and photoinduced processes.
GEOTECHNICAL INVESTIGATION OF GULLY EROSION SITES IN UMUALO VILLAGE, UDI LGA, ENUGU STATE SOUTHEASTERN NIGERIA
Authors: N. Anthonia Nwobodo , C. Michael Ohakwere-Eze , N. Osondu Chukwu
Published: February 2024

Geophysical and geotechnical conditions of soils at the study area were investigated and accessed. Conseinfluencestwo true representative soil samples from different locations within gully sites have been analyzed to evaluate geologic conditions and geotechnical parameters that influence the gullies problems. This study tends to evaluate geotechnical properties of the soil within the gully site. The assessment was mainly to provide insight on the geologic conditions and geotechnical parameters that contribute immensely to gully development in the study area. The findings from this research should be useful in controlling gully erosion in the study area. From the geotechnical analysis, textural characteristics were predominantly sandy, loamy and clay and silt in small proportion. Liquid limit (LL) ranged from 20.40 to 22.26 %, Plastic limit (PL) of 14.82 to 17.48 % were observed, with plasticity index (PI) of 5.58 and 4.78 % respectively. Bulk density ranged from 1.45 to 1.54 g/cm3, the total porosity ranged from 42.075 to 45.208 %. The Aggregate stability ranged from 33.67 to 40.24% and water holding capacity ranged from 29.507 to 30.482%. The results obtained show that factors responsible for the menace of gully erosion in the study area include; loose soil materials and dominant coarse sand. Other field observation factors include; topography, deforestation, bush burning that distort the texture of the soil contribute to the menace of gully erosion in the area. Hence to prevent these catastrophes caused by this erosion, necessary enlightenment campaigns on best agricultural practices that can reduce surface runoff in soil and water conservation is important. Also, strong culvert should be constructed at different locations in that area.
INTERACTIVE DIGITAL MAPPING OF SENTUL-BOGOR TREKKING TOURISM DESTINATIONS TOWARD ONE STOP SENTUL TOURISM (OSST)
Authors: Dewi Euis Puspita , Suwartane I Gede Agus , Komsiah Siti , Sovitriana Rilla , Trisnawati Nana , Effendi Maya Syafriana
Published: February 2024

Sentul trekking tourism in Bogor is becoming increasingly popular as it provides many attractive natural sights and is a safe option for tourists during and after the Covid-19 Pandemic. Nevertheless, access to information on the geographical description of tourism destinations is not available. In the context of tourist development, reliable, interactive, and fascinating geographical information regarding hiking routes and tourism objects is required. The purpose of this article is to discuss the development of a interactive digital map containing routes and areas of interest for the Sentul Bogor hiking tourist item and displaying multimedia content in the form of text, graphics, and images. This interactive digital map was created using a Geographical Information System (GIS) and includes all multimedia components such as images, text, and Figures that are displayed dynamically. This article identifies six routes in Bogor’s Sentul Region that are prioritized for presentation on an interactive digital map. The Routeis divided into two levels: basic and intermediate. The basic level comprises the Leuwi Asih Waterfall Way, the Leuwi Hejo Waterfall Route, the Cibingbin Waterfall Route, the Goa Garonggang Waterfall Road, the Paniisan Hill Route, and the Ciburial Waterfall Route.
ANÁLISE DE UMA SEQUÊNCIA DIDÁTICA INVESTIGATIVA COM O FOCO NO ESTUDO DAS QUESTÕES QUÍMICAS E SOCIAIS RELACIONADAS ÀS BEBIDAS ALCÓOLICAS
Authors: Matias Erivelton Felix , Souza Vinícius Catão de Assis
Published: February 2024

Este artigo descreve a aplicação piloto de uma Sequência Didática Investigativa (SDI), com foco no estudo das questões químicas e sociais relacionadas às bebidas alcóolicas. O trabalho foi desenvolvido com alunos da terceira série do ensino médio de uma escola pública da cidade de Porto Firme, Minas Gerais. Buscou-se discutir os problemas relativos ao alcoolismo e prevenir o uso abusivo de álcool pelos jovens. No aspecto metodológico, as atividades contemplaram discussões contextuais; experimentos para determinar o teor de álcool na gasolina e em algumas bebidas alcoólicas; visita a um alambique como atividade de campo e reflexões acerca do alcoolismo como uma problemática social. A análise dos dados preliminares foi feita por meio de estudos de caso, tendo como fonte as transcrições dos áudios das aulas, as respostas dos estudantes aos materiais escritos, além das impressões e anotações do professor ao longo do processo de ensino. Os resultados da ação evidenciaram dificuldade dos estudantes na compreensão do processo de fermentação, o que levou à retomada desse conteúdo em outros momentos. Essas atividades favoreceram o desenvolvimento da argumentação e, consequentemente, do pensamento crítico e reflexivo dos estudantes frente às questões sociocientíficas levantadas ao longo das aulas, além de contribuir para que eles atribuíssem sentido ao aprendizado de ciências na escola.
PRÁTICAS INTERDISCIPLINARES ENTRE A MATEMÁTICA E CIÊNCIAS: REFLEXÕES A PARTIR DA PRODUÇÃO CIENTÍFICA BRASILEIRA
Authors: Magni Daiana Genevro Pinheiro , Leão Marcelo Franco
Published: February 2024

Este estudo tem como objetivo investigar a abordagem da interdisciplinaridade entre os componentes curriculares de Matemática e de Ciências da Natureza no Ensino Fundamental, com base na produção científica nacional dos últimos dez anos (2012-2021). A pesquisa, realizada no primeiro semestre de 2022, teve como fontes duas plataformas renomadas, SciELO - Brasil e Periódicos CAPES. A análise dos artigos, por meio da técnica de Análise de Conteúdo, considerou as categorias: principais teóricos, conteúdos abordados, etapas de escolarização, áreas do conhecimento e estratégias adotadas. Identificou-se oito artigos científicos que abordam a interdisciplinaridade, dentro e fora da sala de aula, utilizando projetos, propostas de sequência didática e análise de livros. Dentre os principais teóricos destacam-se Japiassu (1976), Vygotsky (1978; 2001; 2004), Fazenda (1994; 2006; 2008), Santomé (1998) e Zabala (1998). Suas pesquisas abordam a proporcionalidade e a densidade, a água e a biodiversidade aquática, o lixo ambiental, o universo, a conservação e a qualidade do solo e a Educação Ambiental, com a participação de estudantes do 6° ao 9° ano do Ensino Fundamental. Além da interdisciplinaridade entre a Matemática e Ciências da Natureza, os estudos incluíram Artes, Geografia e Português. As estratégias identificadas envolveram aulas práticas, leituras, produção de texto, palestras informativas, resolução de atividades, vídeos e jogos educativos. Este estudo destaca a importância da interdisciplinaridade entre a Matemática e Ciências da Natureza na promoção da autonomia e da diversificação de estratégias nas práticas pedagógicas, contribuindo para o avanço das pesquisas educacionais no Brasil.
ESTADO DO CONHECIMENTO SOBRE A UTILIZAÇÃO DE JOGOS SÉRIOS NO ENSINO DE CIÊNCIAS
Authors: Araujo Markondes Lacerda , Leão Marcelo Franco
Published: February 2024

A sala de aula tem passado por notáveis transformações nos dias de hoje e evidencia especialmente a adoção de metodologias ativas e a integração de ferramentas inovadoras, como os jogos sérios. Essas abordagens não apenas aprimoram os processos de ensino e aprendizagem, mas também promovem uma participação ativa dos estudantes no ambiente escolar e, desse modo, proporcionam uma experiência educacional mais dinâmica e envolvente. Nesse contexto, o objetivo desta pesquisa é apresentar, por meio de um levantamento bibliográfico dos últimos 16 anos, a utilização e a importância de jogos sérios no ensino de Ciências no nível secundário, publicados em periódicos nos bancos de dados da Web of Science e Scopus. O presente estudo, classificado como revisão bibliográfica, foi realizado no primeiro semestre de 2022 e identificou um total de 11 periódicos que foram analisados utilizando seis categorias pré-estabelecidas pelo método Análise de Conteúdo: principais referências, conceitos científicos, linguagens empregadas/tecnologias envolvidas, tipo de jogo e público envolvido. Em suma, os resultados destacam a importância dos jogos sérios com diferentes gêneros de jogos, bem como abordam as dificuldades e os desafios enfrentados por professores e estudantes. Além disso, foram identificadas possibilidades de abordagem, com o auxílio de diferentes materiais tanto dentro quanto fora do jogo, fato que contribui para uma melhor aquisição dos conteúdos científicos nos componentes curriculares de Biologia, Física e Química.
“Scientific Horizons: Student Research with MedWrite Academy”
Authors: Shalom Moshe , Khela Harpriya
Published: February 2024

MedWrite Academy is an internship program specifically designed for aspiring medical and pre-medical students. Our primary objective is to equip students with the essential skills required to transform their innovative ideas into well-structured research papers. At MedWrite Academy, we believe in the power of collaboration and learning through experience. Students are carefully grouped with peers who share similar interests, creating a dynamic learning environment. This grouping fosters not only intellectual growth but also cultural exchange, as our students come from diverse backgrounds around the globe. Each group is guided by an experienced mentor who provides personalized guidance and support throughout the research process. These mentors are dedicated to helping students navigate the complexities of research methodology, data analysis, and academic writing. Their expertise ensures that each student's idea is nurtured and developed into a high-quality, publishable research article. Being a fully virtual internship, MedWrite Academy offers flexibility and accessibility, allowing students from any part of the world to participate without geographical constraints. This unique feature opens doors for international networking and collaboration, enriching the learning experience. Our program not only focuses on academic growth but also aims to develop key professional skills such as teamwork, communication, and time management. MedWrite Academy is the perfect platform for students looking to enter the world of medical research and academia. Join us and turn your ideas into impactful research!
Fiteens toolkit. Bevordering van gezondheidsgeraleerd gedrad in de orderwijscontext
Authors: García González Luis , Abos Angel , Sanz-Remacha Maria
Published: February 2024

Kinderen en adolescenten krijgen tijdens het opgroeien andere gewoontes. Sommige van deze gewoonten houden nauw verband met gezondheid, dus het aanleren van gezonde gewoonten kan hen enorm helpen om in de toekomst een gezond en vredig leven te leiden, terwijl slechte gewoonten schadelijk voor hen kunnen zijn. Daarom is het noodzakelijk dat we vanuit de verschillende onderwijsinstellingen deze jongeren helpen bij het aanleren van deze gewoonten. Het doel van het FITeens- project (bevordering van fysieke activiteit en gezonde gewoonten bij sedentaire tieners) is om een proefproject te starten met een leuke, interessante en boeiende educatieve interventie gericht op tieners om fysieke activiteit en gezonde gewoonten te bevorderen. Dit eerste resultaat van het project bestaat uit een uitgebreide reeks ideeën, middelen, praktijken en enkele voorbeelden voor leraren lichamelijke opvoeding die de verschillende kerngedragingen behandelen die het risico op chronische ziekten verhogen (lichamelijke activiteit, voldoende slaap, matige schermtijd, alcohol- en tabaksgebruik en gezonde voeding) die in hun onderwijspraktijk kunnen worden opgenomen. Deze toolkit bestaat uit 3 verschillende modules: 1. Middelbare scholen als effectieve instellingen om een gezonde levensstijl te bevorderen. Deze module behandelt het belang van scholen bij het aanleren van gezonde gewoonten door adolescenten. 2. Motivatie als sleutel tot bevordering van lichaamsbeweging. Deze module richt zich op het belang van motivatie bij het aanleren van gezonde gewoontes. 3. Gezondheidsgerelateerd gedrag bij jongeren. Deze module zal zich richten op de belangrijkste gezondheidsgerelateerde gedragingen die hierboven zijn genoemd (lichamelijke activiteit, voldoende slaap, matige schermtijd, alcohol en tabaksgebruik en gezonde voeding), waarbij elk van deze gedragingen grondig wordt beschreven. Al deze modules zijn gewijd aan de verschillende hierboven genoemde gezondheidsgerelateerde gedragingen. Elk van hen zal een theoretische uitleg, verklarende video's, infographics en leersituaties hebben die leraren lichamelijke opvoeding zullen ondersteunen bij het verwerven van een brede kennis over hoe ze hun leerlingen kunnen motiveren om aan lichaamsbeweging deel te nemen en gezonde gewoonten aan te leren, waardoor ze zich bewust worden van het belang ervan.
Pengaruh Desain Overhang Terhadap Efisiensi Energi Dan Kenyamanan Termal Pada Bangunan Seni Di Kota Medan
Authors: Nasution Aulia Muflih , Rambe Yunita Syafitri
Published: February 2024

Fenomena beberapa tahun terakhir akibat adanya penipisan lapisan ozon dan reaksi gas rumah kaca menimbulkan kesadaran akan keberlanjutan dan efisiensi energi dalam arsitektur. Hal yang terjadi meningkatnya biaya energi dan kebutuhan untuk mengurangi dampak lingkungan dari bangunan. Bangunan-bangunan yang semakin berkembang merupakan yang paling banyak mengkonsumsi energi. Perlu adanya upaya untuk meningkatkan efisiensi energi dalam bangunan. Tujuan Penelitian melakukan analisis terhadap pengaruh overhang atap pada bangunan terhadap pembayangan dan kenyamanan thermal pada bangunan seni di kota Medan. Metode penelitian menggunakan metode deskriptif kualitatif dengan mengumpulkan data dan analisis terhadap hasil perancangan bangunan. Hasil penelitian menunjukkan bahwa orientasi bangunan yang memanjang ke arah utara selatan dapat mengurangi pemaparan panas matahari pada dinding bangunan yang tinggi. Pola massa bangunan yang disesuaikan dengan fungsi masing-masing bangunan dapat menciptakan sebuah ruang terbuka (open space) ditengah bangunan sekaligus comunal space tempat bersosialisasi dan pertumbuhan pada bangunan. Penggunaan tanaman sebagai buffer udara pada outdoor bangunan dan penggunaan overhang atap serta skylight pada bangunan dapat meningkatkan kenyamanan thermal pada bangunan seni.
’Arsitektur Monumental Sebagai Representasi Kultural’ Kasus Studi: Gedung Sate
Authors: Muhammad Thareq , Susanto Basuki Dwi
Published: February 2024

Jika melihat fenomena mengenai perkembangan arsitektur yang ada terutama di Indonesia, dapat dilihat bahwa seiring berjalannya waktu, arsitektur di Indonesia mulai kehilangan identitas lokal terutama dalam konteks kultural. Studi ini membahas mengenai pentingnya sebuah arsitektur terutama arsitektur monumental yang memiliki representasi kultural di tempat didirikannya. Studi ini bertujuan untuk mempelajari arsitektur di Indonesia yang dapat merepresentasikan kultur setempat. Kasus studi berupa arsitektur Gedung Sate yang terletak di Bandung sebagai pusat pemerintahan Jawa Barat sebagai arsitektur monumental skala regional. Studi mengenai arsitektur monumental sebagai representasi kultural diharapkan dapat memberikan suatu citra atau identitas yang merepresentasikan budaya setempat.Teori yang digunakan dalam studi ini adalah teori mengenai citra kota oleh Kevin Lynch, teori citra kota Budihardjo, serta teori fungsi, bentuk, dan makna Salura untuk menelaah akulturasi konteks budaya pada bangunan Gedung Sate. Metode yang digunakan dalam menelusuri kasus studi ini adalah kualitatif dengan jenis studi deskriptif, analitik, dan interpretatif. Data diperoleh dari studi literatur jurnal dan beberapa buku yang berkaitan dengan kasus studi. Hasil studi menunjukkan bahwa Gedung Sate memberikan representasi kultur budaya Indonesia yang diambil dari konsep-konsep arsitektur nusantara khususnya Candi Jawa dengan ekspresi ragam akulturasi arsitektur yang menunjukkan bentuk pelingkup dengan ekspresi kultur/budaya lokal dapat merepresentasikan arsitektur nusantara
Citra Perdagangan Informal di Simpang Tujuh Ulee Kareng Banda Aceh
Authors: Putri Aji Sofiana , Fadhil Muhammad Naufal
Published: February 2024

Simpang Tujuh Ulee Kareng merupakan salah satu persimpangan yang cukup ramai di Kota Banda Aceh. Persimpangan ini memiliki aktifitas perdagangan informal yaitu street vendors di ketujuh ruas jalan yang bertemu, Jalan T. Iskandar – Cot Iri, Jalan Jurong Dagang, Jalan T. Iskandar – Simpang BPKP, Jalan Kebun Raja, Jalan Masjid Tuha, Jalan Lamreung, dan Jalan Lamgapang. Penelitian arsitektural ini bertujuan untuk menganalisis tipe dan tipologi street vendors yang hadir pada ketujuh ruas jalan dan merumuskan konsep citra visual perdagangan informal yang hadir di kawasan tersebut. Untuk menemukan citra visual, penelitian ini menggunakan metode deskriptif kualitatif melalui analisis visual hasil dokumentasi fotografi survey lapangan. Hasil analisis visual perdagangan informal pada ketujuh ruas jalan menunjukkan adanya tujuh citra yang berbeda. Citra tersebut dipengaruhi oleh tipe dan tipologi street vendors, seperti detached/unfixed, detached/semi-fixed, detached/fixed, adjacent/unfixed, adjacent/semi-fixed, dan adjacent/fixed. Citra perdagangan informal yang berbeda juga dipengaruhi oleh konteks kawasan seperti keberadaan pasar dan sentra kedai kopi.
Inovasi Perancangan Dalam Perspektif Islam Pada Karya Arsitektur Masjid Raya Pati, Jawa Tengah
Authors: Utami Utami
Published: February 2024

Seorang arsitek dalam melakukan proses perancangan harus berpikir kreatif untuk menghasilkan alternatif solusi perancangan yang inovatif. Dalam perspektif Islam, manusia harus menggunakan akal pikirannya dalam bertindak dan menerima sebuah informasi tidak boleh “Taqlid”, yaitu tanpa memahaminya tapi sekedar meniru atau cara berpikir dogmatis. Sebaliknya Islam mendorong berpikir inovatif dengan membuka pintu “Ijtihad”, yaitu penyelesaian permasalahan selama tidak bertentangan dengan Al Quran dan Hadist. Proses inovasi harus dilandasi ilmu, proses berpikir dan menggali permasalahan secara rasional dan bertanggung jawab, tidak subjektif. Prinsip berpikir inilah menjadi dasar arsitek melakukan eksplorasi dan inovasi desain. Penelitian ini mengupas arsitektur masjid Raya Pati, Jawa Tengah, yang merupakan hasil inovasi desain dengan mengacu nilai-nilai Islami. Masjid Raya Pati merupakan masjid inovatif dengan sentuhan arsitektur baru yang berbeda dengan kebanyakan arsitektur masjid pada jamannya. Metoda penelitian ini menggunakan pendekatan deskriptif - kualitatif, melalui pengumpulan dan analisis data rancangan bangunan masjid Raya Pati secara mendalam. Hal ini untuk memahami inovasi desain pada rancangan masjid tersebut. Hasil penelitian mengungkapkan bahwa proses eksplorasi desain pada Masjid Raya Pati ini menghasilkan inovasi baru pada sebuah arsitektur masjid, baik bentuk maupun strukturnya namun tetap rasional. Islam membuka peluang eksplorasi gagasan desain inovatif untuk mencari sesuatu yang baru secara rasional dan bertanggung jawab dengan tetap memenuhi nilai-nilai Islami, etika dan norma-norma terhadap manusia maupun lingkungan.Kata kunci: Inovasi, Masjid, Perancangan, Perspektif Islam
Identifikasi Ornamen Art Deco Pada Eksterior Gedung Merdeka Bandung
Authors: Sulistiawan Agung Prabowo , Rafi Muhammad , Shafira D.A Siti , Triadi S Shafwan , Hadi Muhammad Abdul
Published: February 2024

Cagar budaya adalah harta kekayaan budaya suatu bangsa yang menggambarkan pemikiran dan perilaku kehidupan manusia yang memiliki nilai penting bagi pemahaman dan pengembangan sejarah, ilmu pengetahuan, dan kebudayaan dalam kehidupan bermasyarakat suatu bangsa. Cagar budaya dapat berupa benda, bangunan, struktur, situs, dan kawasan yang perlu dikelola oleh pemerintah dan pemerintah daerah dengan melibatkan partisipasi aktif masyarakat dalam upaya melindungi, mengembangkan, dan memanfaatkan kekayaan cagar budaya tersebut. Bangunan Gedung Merdeka yang berlokasi di pusat Kota Bandung menjadi salah satu bagian dari bentuk bangunan cagar budaya. Penelitian ini bertujuan untuk mengidentifikasi ornamen Art Deco yang ada pada bangunan Gedung Merdeka. Tujuan penelitian  ini adalah untuk memperkuat eksistensi objek penelitian sebagai salah satu bagian dari warisan budaya yang dilindungi. Metode studi yang dilakukan untuk mengetahui sejarah, implementasi, dan perbedaan unsur cagar budaya adalah dengan mengumpulkan data primer dan sekunder serta observasi lapangan. Metode analisis yang dilakukan adalah deskriptif kualitatif yang menyajikan hasil yang lebih mendalam dan menyeluruh mengenai bangunan cagar budaya yang diteliti. Hasil kajian menunjukan bahwa penerapan penerapan elemen-elemen art deco yang terdapat di berbagai bagian Gedung Merdeka menunjukkan keahlian dalam menggabungkan bentuk, hiasan, dan ciri khas gaya arsitektur, sehingga menciptakan bangunan yang menjadi ikon dan identitas khas Kota Bandung. Kajian ini dilakukan dengan harapan dapat bermanfaat menjadi pengetahuan dan  digunakan sebagai acuan bagi para arsitek, penggiat budaya, dan masyarakat luas dalam mengapresiasi serta melestarikan warisan budaya arsitektur Art Deco.
Vida extraterrestre no Ensino de Física: uma investigação no contexto educacional
Authors: Paganotti Arilson , Reis Crislayne Aparecida Modesto , Sousa Jéssica Paiva
Published: February 2024

Este trabalho tem como proposta verificar a temática Vida Extraterrestre e Astrobiologia em alguns documentos oficiais como os Parâmetros Curriculares Nacionais (PCN), Currículo Básico Comum de Minas Gerais (CBC Mineiro) e a Base Nacional Comum Curricular (BNCC), tendo como referência a Física do Ensino Médio. Pesquisou-se também o conhecimento dos estudantes sobre o tema Vida Extraterrestre e Astrobiologia, por meio de um questionário aplicado em quatro escolas estaduais de Minas Gerais. A pesquisa foi realizada no segundo ano do Ensino Médio, somando um total de 82 participantes. A análise das respostas fundamentou-se nas técnicas de análise de conteúdo. Verificou-se na análise documental que nos PCN e na BNCC, os temas Vida Extraterrestre e Astrobiologia são obrigatórios, porém no CBC Mineiro esses conteúdos não são abordados. Apesar de ser um tema recomendado pelos documentos oficiais, verificou-se a necessidade de mais pesquisas educacionais e publicações em congressos e periódicos explorando esse conteúdo.
Sandwich panels with bio-based core of wood fibre insulation
Authors: Pradhan Eric Man , Lange Jörg , Izabel David , Renaux Thibault , Huet Valérie
Published: February 2024

In light of the climate crisis, the building sector faces the increasing challenge and urgency to improve its sustainability and significantly reduce its consumption of non-renewable resources. Therefore, the EU-funded research project InCSEB is developing ultra-low carbon footprint building steel envelope systems through the innovative use of wood fibre as a core material of sandwich panels. By using the new bio-based core material, the carbon footprint and the environmental impact of buildings with this type of envelope system can be reduced. Within the InCSEB project, various studies are being carried out on sandwich panels with a bio-based core. In addition, studies are being carried out on full-scale building prototypes with these new solutions. In this paper, the results of the static-mechanical tests and the assembly of the sandwich panels with a wood fibre core are presented to indicate the future scope of potential roof and cladding applications.
Climate Change: Latest on the Wind Speed at the Coastal Regions of India
Authors: Rahul P. S.  , Anoop Cini , Kumar K. Suresh
Published: February 2024

Indian sub-continent is subjected to many severe windstorms and the Indian coastal belt, especially the east coast is threatened by cyclones that have been known to cause damage to structures. However, the root cause of the damage cannot often be equated to high wind speeds exceeding the standard prescribed design wind speeds; but rather linked to lack of maintenance, poor workmanship, improper standard provision application, and poor standard enforcement.

Note that the frequency of occurrence and associated intensity of storms are the key data required to determine the design speed at a specified risk level with confidence. The lack of cyclone data measurements at landfall is a serious anomaly worldwide including in India, which hinders the development of design speed with confidence. Advanced tropical cyclone wind simulation models have been successfully developed for some tropical cyclone-prone regions.

In our recent studies, the design wind speeds corresponding to various risk levels were determined based on (i) the number of years of full-scale measurements from airports, (ii) numerically simulated data, as well as (iii) the fast-predictive cyclone wind hazard model. Based on all these studies, it is proven that the current recommended cyclonic factor (k4) in IS 875 (Part 3) will make the wind speed overly conservative. In summary, though the number of storms is on the rise in India, climate change is not warranted to increase the wind speed; at least in the coastal zones yet.
Different strategies for setting requirements for sustainability
Authors: Christensen Randi M.
Published: February 2024

The construction industry significantly impacts climate, environment, and society and should consider how best to respond to the present challenges. This paper aims to investigate what requirements clients are setting for sustainability and to discuss what strategies might be more efficient when setting those requirements. The paper draws on findings from screening sustainability requirements in recent tenders for large infrastructure projects. It has been analysed to what extent clients tend to add specific project requirements and focus on collaboration to reduce the project's CO₂ footprint. This is supplemented by findings from a case where a client changed the collaboration model to partnering to achieve a more sustainable project. The different strategies have different benefits and consequences, which should be considered in relation to the project context.
Revitalization of the historical bridge over the Mała Panew River in Ozimek – the oldest chain suspension grey cast iron river-crossing on the European continent
Authors: Maslak Mariusz , Pańtak Marek , Pazdanowski Michał
Published: February 2024

Renovation methodology applied to protect the historical chain suspension bridge made of grey cast iron and erected in the years 1825-1827 over the Mala Panew river in the vicinity of Opole is presented and discussed in detail. This bridge crossing, of unique structure, is currently recognized as the oldest cast iron suspension bridge erected on the European continent (excluding British Isles). Special attention was paid to analyse the weakening of main bearing components induced by gradual degradation of the material properties during their extremely long service time. Replacement of several worn out and cracked links in the bearing chains proved to be necessary. As a result of the conducted works the bridge has been sufficiently strengthened and due to that protected against the detrimental influence of possible vibrations. All joints have been renewed and cleaned as well. Currently the bridge is accessible only for pedestrian traffic of limited intensity.
How an Architectural Gem from 1900 Became “Building of the Year 2020”: Alter Wall 2-32 at the Heart of Hamburg, Germany
Authors: Pekoll Oskar-H.
Published: February 2024

The listed building complex Alter Wall 2-32 built in 1910 is located at the heart of Hamburg between the landmark City Hall and the canal Alsterfleet tunneled by the railway. During the extensive revitalisation and structural expansion the historic building substance had to be preserved and reused for load bearing as extensively as possible. The listed historic facades were secured by a spatial steel structure, which was reintegrated for load transfer after the erection of the new supporting structure. Behind the historic facades five new basement floors were built under the protection of a deep trough pit withstanding high water pressures and avoiding any but slightest deformation during the excavation process. About 10.000 m2 of retail space and around 18.000 m2 of office space were created. For these efforts the planning team won the “Building of the Year Award” in 2020.
Femtosecond pulse laser cleaning of Makrana marble and semi- precious stones for the preservation of the Holy Samadh
Authors: Brand Julia , Madden Steve , Rode Andrei V. , Rapp Ludovic , Wain Alison
Published: February 2024

This study examines the use of heat-free femtosecond pulse laser technology for the cleaning of Makrana marble and semi-precious stones from the Soami Bagh Samadh temple in Agra, India. We determined the ablation thresholds of the semi-precious stones used in the inlay stonework with femtosecond laser pulses and demonstrated that laser ablation can effectively remove dust layers and environmental staining from the marble surfaces without damaging the original material. We demonstrated, by using optical microscopy, colorimetry, scanning electron microscopy and Raman spectroscopy, that femtosecond laser processing of surfaces reduced the risk of thermal damage due to minimal heat generation and allowed the preservation of the original surface structure. This research suggests that femtosecond pulse laser technology can be a sustainable and effective cleaning method for heritage places such as the Holy Samadh temple.
Machine Learning Based Optimization Techniques for Predictive Strength of High Performance Concrete: Enhancing Sustainable Development
Authors: Parida Lukesh , Moharana Sumedha , Giri Sourav Kumar
Published: February 2024

The pursuit of sustainable growth in the construction sector needs a precise forecast of material characteristics to optimize resource consumption. This research focuses on utilizing the capabilities of well-known XGBoost regression algorithms to forecast the compressive strength of High- Performance Concrete (HPC). In this study, 2171 datasets were collected from literature containing input parameters that influence concrete strength, thereby creating a robust predictive model. The performance indices were assessed using root mean squared error (RMSE) and R2 score. The findings indicate that the XGBoost model outperforms standard statistical techniques in predicting accuracy. This research intends to improve the precision of compressive strength estimation, facilitating the development of more durable and sustainable construction practices.
Disruptive change in mineral building materials - high-performance prefabricated elements made of UHPC for circular buildings
Authors: Olipitz Michael
Published: February 2024

Concrete {NPC) is the most commonly used building material worldwide, which has great development potential in the form of UHPC. With the help of high-performance prefabricated elements, significant advantages can be achieved in relation to the classic in-situ concrete construction in terms of resource and energy efficiency as well as in terms of recyclability and durability. This report uses specific application examples to show the savings that can be achieved in manufacturing phase A. When used appropriately for the material, high-performance precast elements made of UHPC can save up to 85% in resources {R) and up to 65% in energy {GWP = C02e

= E) achieve. The implementation of high-performance prefabricated parts in our new buildings enables significant changes in buildings, both in terms of emissions consumption and urban mining potential. The disruptive change in the construction industry requires consistent choose, want, venture and repeat from those involved. In this regard, we are all called upon to make a contribution together.
Sustainability by Integration of Existing Structures into new Infrastructures
Authors: Dette Grischa , Munack Jörg
Published: February 2024

One of the solutions for sustainable development of transport infrastructure is upgrading the old transport system or – in case a substantial enlargement of capacity is needed – by integrating existing transportation structures into new transportation structures with higher capacity. However, the upgrading and/or integration of existing structures goes along with demanding engineering tasks, such as considering design changes in the final structure, changes in geometry or loading and dealing with structural deficiencies. This makes it necessary to reassess and strengthen the existing structures and to design the new structure and its connections to the existing structure while paying attention to all these aspects. Also, in many cases unavoidable deviations from the valid regulations become necessary. For these design tasks, it is necessary evaluate and develop new solutions and to gain broader knowledge base to draw from. The present paper reports on the experiences from an infrastructure project in Germany.
Sustainable Bridges – Past and Future: Reflections on a European Project 2003 - 2007
Authors: Bell Brian , Bień Jan , Crémona Christian , Feltrin Glauco , Jensen Jens S. , Kiviluoma Risto , Niederleithinger Ernst , Olofsson Jan , Paulsson Björn , Täljsten Björn , Sas Gabriel , Elfgren Lennart
Published: February 2024

Twenty years ago, in 2003, a European project was started to increase the sustainability of existing railway bridges. This paper summarises what was achieved and looks ahead. Nine Working Packages were organized: (1) Background material; (2) Guidance by stakeholders; (3) Condition Assessment and Inspection Guidelines; (4) Loads, Capacity and Resistance Guidelines; (5) Monitoring Guidelines;

(6) Repair and Strengthening Guidelines; (7) Demonstration with Field testing of Bridges; (8) Demonstration on Monitoring on Bridges; and (9) Training and Dissemination

Some of the main results (from 4 Guidelines and 47 Background documents) are highlighted and some experiences, conclusions and thoughts about the future are given. Hidden strengths and weaknesses are discussed, analyses and codes for assessment can be improved, new monitoring and strengthening methods are available and life length can be prolonged.
Construction of the Multi-span Cable Stayed Bridge at Ambhora, near Nagpur, Maharashtra
Authors: Mody Nirav V. , Subbarao Harshavardhan , Bhattiprolu H. K. S. Durga Jithendra
Published: February 2024

The multi-span cable stayed bridge over river Wainganga near Ambhora, Maharashtra, has an overall length of 705m and deck width of 15.25m to accommodate 2 lanes of vehicular traffic and 3m+3m footpath for pedestrians. The structural arrangement of the bridge comprises 2 modules, with Module 1 of 420m and Module 2 of 280m length with span arrangements of 70m+140m+140m+70m and 70m+140m+70m respectively. The superstructure is cable stayed with RCC deck with an RCC pylon height of 30m above deck level. The pylon P3 at the center of the bridge is also proposed with Viewing Gallery 40m above deck level which is structurally independent from the main bridge. This paper discusses the construction aspects of the bridge along with the details of a special travelling formwork (form-traveller) used to enable the cantilever construction of the spans over deep waters. The Module 1 of the bridge is constructed by cantilever method for pylon P2 and anchored span method for pylon P1 and P3. The Module 2 of the bridge is constructed entirely on staging. This is one of the very few cable-stayed bridges in India where all 3 methods of construction of a cable stayed superstructure are adopted in the same bridge.
First Time Use of LRB for Seismic Isolation of a Major Bridge in India - A case study
Authors: Jain Sanjay , Srivastava Shilpi
Published: February 2024

This paper presents first time application of Lead Rubber Bearings (LRB) in one of the Bridges in India, presently under construction and located in high seismic zone (Zone IV). LRB is adopted as a Seismic Isolation device for reduction of seismic demand. LRBs have found wide application worldwide because of their simplicity and combined Isolation-energy dissipation function in a single unit. Its components include a lead core and a laminated rubber bearing. In addition to withstanding a strong horizontal and vertical load, the lead core also has the ability to absorb energy through plastic deformation via hysteretic damping. LRB enhances flexibility of the structure and thereby the natural time period of structure defers with the natural time period of ground motion. LRB being the most viable option in high seismic zone, it was decided to use it in one of the projects, namely the viaduct approach spans of the 4-lane bridge over river Ganga at Patna, Bihar (Parallel to the Existing Mahatma Gandhi Setu). The project is being executed on EPC contract Mode.
Designing World’s Tallest Statue for Wind: Statue of Unity
Authors: Anoop Cini , Rahul P. S.  , Kumar K. Suresh
Published: February 2024

The Statue of Unity is an iconic symbol of the ‘Iron Man of India’, Sardar Vallabhai Patel, who played a leading role in India's struggle for independence, guiding its integration into a united, independent nation. This statue is a colossal structure facing the Sardar Sarovar Dam on the river Narmada, in the state of Gujarat, India, and is presently the tallest statue in the world. This statue with a height of 182 m, erected on a river island, is exposed to heavy winds that necessitated wind load analysis. Considering the height of the statue, its specific geometry and specific location posed the greatest challenges that required special attention to the wind loads acting on the statue. Due to these complicated aspects of geometry, the estimation of loads employing building codes, such as IS:875 will not give accurate results. The present work focuses on a comprehensive wind load analysis of the statue, incorporating all critical factors that can influence the wind loading on the structure like the local topographic effects on the wind flow.

Local topography and its potential topographic effects merit special consideration in wind response predictions. Wind tunnel studies were carried out on a scaled model, following the established international standards and procedures. The wind-induced structural responses on the statue were analysed employing High-Frequency Force Balance (HFFB) technique. The statue has bronze cladding panels throughout on the external surface and the wind loads on these elements were also estimated by wind tunnel tests. In addition to structural and cladding wind tunnel tests, pedestrian- level wind comfort studies were also carried out, considering the large number of tourists expected to visit the statue and to avoid any discomfort due to wind. All these studies generated enormous data that provided valuable inputs for the safe design of the structure.
Bridge Cables – Non-Desctructive Testing
Authors: Ruff Daniel C. , Eirich Hans
Published: February 2024

Non-destructive testing (NDT} is essential for maintaining the safety and functionality of bridge ca- bles. This paper reports about a research project investigating the potential of magnetic inductive testing (MIT} for non-destructive testing of bridge cables in free length in combination with ultra- sonic testing (UT} in the area of the end connectors. The MIT method is non-invasive and uses mag- netic fields to detect defects in metallic materials such as bridge cables and is accepted as testing method for running ropes since many years. The project evaluated the effectiveness of the MIT method in detecting defects such as broken wires, corrosion symptoms, and other imperfections. The results demonstrate that MIT is a promising NDT technique for bridge cables, providing valuable information for maintenance and repair purposes. The paper also highlights the need for further research to optimize the MIT technique and its applicability to different types of cables and condi- tions.
Extending the life of a historical Bridge through UHPFRC
Authors: Schellenberg Kristian , Martin-Sanz Henar , Amaral Vasco
Published: February 2024

Designed by Robert Maillart, the Aarebri..cke Aarburg {Aargau, Switzerland) stands as a landmark in townscape of Aarburg. This concrete arch bridge with a span of 67.83 m was constructed in 1912.In 1969, the original deck was replaced by a slender deck longitudinally and transversely prestressed. The original slender columns between the arch and the deck, characteristic of this specific bridge, were removed. The bridge was then retrofitted in 1996, but without including a waterproofing. Chloride penetration from de-icing salt used since 1969 is endangering the prestressing of the bridge deck. Due to increased traffic loads the cantilever slabs have been protected from traffic by means of posts. Considering these conditions, a rehabilitation method is sought, capable of increasing the structural capacity of the bridge as well as providing waterproofing. To this end, a UHPFRC {Ultra High Performance Fibre Reinforced Concrete) layer is envisioned.

In this paper, the bridge history is illustrated from the perspective of Robert Maillart bridge developments. Moreover, the strengthening methods employed to increase the lifespan of the bridge are explained, namely the use of UHPFRC on the upper layer and the removal of the expansion joints. The project has been executed as a BIM pilot for the bridge rehabilitations.

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Designs and associated carbon footprint – showcasing Mumbai Trans Harbour Link
Authors: Jangi Anoop Singh , Lundorf Nielsen Lars
Published: February 2024

The introduction of sustainability as part of the evaluation criteria in Design-Build projects broadens the requirements to both designer and contractor and reinforces attention to the choice and source of material, embodied carbon in material, in transport and installation and reinforces the need for having a technically efficient design even further.

To showcase the influence of efficient design examples are presented from the near complete Mumbai Trans Harbour Link (MTHL} project in Mumbai, India. The project was split into three contracts of which C0WI provided design services to package I for contractor JV consisting of Larsen & Thoubro and IHI and with Mumbai Metropolitan Region Development Authority (MMRDA} as end client.
Bridges – A catalyst as well as a driver for sustainable development
Authors: Chattopadhyay Suman , Venkatachalam Karthik , Roy Partha , Satyanarayana Koyya
Published: February 2024

Bridge construction is one of the major elements in construction industry and it is very important to achieve sustainability in planning and execution of Bridge projects. Jacobs strategic framework for sustainability revolves around three core pillars - People, Places and Partnerships. In running our own operations and in delivering client’s projects we strive to deliver economic, social, and environmental values. In this paper, we will demonstrate how the attributes of sustainability are implemented in some of our live projects