bluuebunny/crossref_metadata_2025_split huggingface dataset:
العوامل الثقافية المؤثرة على القائم بالاتصال في الشركات متعددة الجنسيات: "مؤسسة الإمارات للاتصالات" نموذجاً
Authors: Ishag Khalid Ibrahim Abdelaziz 
Published: May 2024

الأهداف: هدفت الدراسة إلى تحديد طبيعة الاختلافات الثقافية بين المجتمعات وكيف يمكن للقائم بالاتصال في الشركات متعددة الجنسيات وفهم ثقافة الآخر والتواصل معه سلمياً.
المنهجية: استُخدِمَ المنهج الوصفي المسحي، وأداة استبانة مكونة من قسمين هما: قسم الخصائص الديمغرافية وقسم العوامل الثقافية المؤثرة على القائم بالاتصال في الشركات متعددة الجنسيات تكوَن من (17) سؤالاً. جرى توزيع الاستبانة بعد تحكيمها على عينة قصدية قوامها (100) مفردة من القائمين بالاتصال في العلاقات العامة وخدمة العملاء بمؤسسة الإمارات للاتصالات.
النتائج: توصلت الدراسة إلى أن القائم بالاتصال في الشركات متعددة الجنسيات يتأثر بالمعتقدات الدينية في موقع عمله وفي المجتمعات التي تنشط فيها شركته، ومنسجم ثقافياً مع زملائه في موقع عمله ومجتمعه، ويمارس قواعد وثقافة اللباس كظاهرة ثقافية للشعوب، وأنه يتأثر بتنوع اللغات كرمز للهوية الاجتماعية والثقافية في المؤسسة والمجتمع. من جهة أخرى بينت الدراسة أن الشركات متعددة الجنسيات تمارس المساواة بين الجنسين في العمل من حيث الأجر والترقي ونوع الوظيفة.
الخلاصة: أوصت الدراسة بضرورة احترام القائم بالاتصال في الشركات متعددة الجنسيات للثقافة التنظيمية والمجتمعية من أجل تجنب الوقوع في أي مشكلة خلاف ثقافي، إلى جانب معرفة العوامل الثقافية التي تساعد الشركات متعددة الجنسيات في تجنب سوء الفهم مع جمهورها.
The Influence Of Pop-Up Book Educational Media On Knowledge Of Fruit And Vegetable Consumption In Early Children
Authors: Pratiwi Syadz'a Putrianty , Herdhianta Dhimas 
Published: May 2024

Background: Many people in Indonesia still ignore the role of PHBS in their daily lives. The lack of implementation of PHBS can have a negative impact on health. This can occur one of them because of changes in lifestyle such as reduced public interest in consuming fruits and vegetables. Riskesdas data in 2018 in Indonesia the lack of consumption of fruits and vegetables in the population aged ≥5 years is 95.5%, data in West Java is 98.2% and in the Cimahi City Region people only consume 23 grams/day. Therefore, it is necessary to educate about fruit and vegetable consumption in early childhood.
Methods: This study used a quasy experiment design one group pretest-postest design. Sample used total sampling of 32 respondents. Data analysis Paired T-test.
Results: Average score of respondents' knowledge before the intervention was 68.59 and the average score of respondents' knowledge after the intervention was 87.66. There was an increase in knowledge by 27.8%. The p value in this study was (p=0.000).
Conclusion: There is an effect of giving Pop-Up Book media on knowledge of fruit and vegetable consumption in early childhood at PAUD Nusa Indah Cimahi City.

Keywords: Pop-Up Book; Knowledge; Fruit and vegetable consumption; Early childhood
The Influence Of History Of Overweight And Place Of Residence On Nutritional Status
Authors: Rachmawati Yulia , Sriyanti Sriyanti 
Published: May 2024

Background : Adolescents are a group that is vulnerable to nutritional problems. Overnourished adolescents are at risk of becoming overnourished in adulthood and are a risk factor for degenerative diseases with high morbidity and mortality.
Methods: This study used a cross-sectional design to analyze the effect of history of overweight and residence on nutritional status at SMAIT Peradaban Al Izzah Sorong City. The study was conducted from March to July 2022 with a sample of 76 students. The sampling technique used pursposive sampling. The statistical analysis used was chi-square
Results: The results of statistical tests in this study showed that there was an effect of history of overweight (p=0.032) and residence (p-0.043) on nutritional status.
Conclusion : The conclusion of this study is that there is an influence of history of overweight and residence on nutritional status.

Keywords : Overweight, Residence, Nutritional Status, Adolescents
THE RELATIONSHIP BETWEEN WORK ATTITUDE AND LEADERSHIP WITH THE PERFORMANCE OF HEALTH WORKERS AT PUBLIC HEALTH CENTER IN PARIAMAN CITY
Authors: Surya Rezi Fatrima , Lestari Yuniar , Kasra Kamal 
Published: May 2024

The increase in the number of health workers by 26% from the previous year was not in line with the increase in program achievements at the Public Health Center (PHC) in the working area of the Pariaman City Health Office which had not yet reached the set targets such as the target for non-communicable disease services (NCD) which on average only reached 37.31% of the target. This is partly due to the low performance of health workers at the public health center. This study aims to analyze the relationship between work attitudes and leadership with the performance of health workers in the Essential Public Health Efforts (PHE) program at the Pariaman City Health Center. This study is quantitative research with a cross sectional approach. Sampling of this study was carried out by proportional random sampling of 89 respondents from a population of 100 health workers. The results showed that work attitude has a significant relationship with officer performance while leadership does not have a significant relationship with health workers performance. It can be concluded that improving the health workers work attitudes will improve the performance of health workers and improving the leadership of the head of public health center does not improve the performance of the health workers.
Analisa Multi Faktor Terhadap Peningkatan Value Penjualan Batubara Indonesia Untuk Ekspor
Authors: Husodo Mohammad Bimo , Vanany Iwan 
Published: May 2024

Tingginya permCCCintaan batubara memberikan prospek pasar yang menarik bagi para eksportir batubara Indonesia. Penelitian ini bertujuan untuk menganalisis pengaruh faktor-faktor tertentu terhadap peningkatan nilai penjualan batubara untuk ekspor di Indonesia selama periode 2019-2022. Faktor-faktor yang dipertimbangkan dalam penelitian ini meliputi nilai tukar rupiah, produksi batubara, permintaan batubara dalam negeri, dan harga acuan batubara serta penggunaan renewable energy. Metode analisis regresi linier berganda digunakan untuk menguji hubungan antara variabel-variabel ini dengan peningkatan nilai penjualan batubara untuk ekspor. Faktor lain yang mempengaruhi adalah permsalahan geopolitik yang mencakup perang/invasi suatu negara, perang dagang, perang mata uang dan perubahan teknologi untuk energi terbarukan. Metode Analytic Heirarky Process (AHP) digunakan untuk menguji hubungan antara variabel-variabel terhadap nilai penjualan batubara untuk ekspor. Hasil penelitian ini dapat memberikan wawasan yang berharga bagi pemerintah Indonesia dan pemangku kepentingan terkait dalam mengelola sektor batubara, serta dapat digunakan sebagai dasar untuk perumusan kebijakan yang lebih efektif dalam memaksimalkan penerimaan negara dari sumber daya alam ini dan meningkatkan daya saing industri batubara Indonesia di pasar internasional.
AVALIAÇÃO DE DIFERENTES TRATAMENTOS DE SUPERFÍCIE NA RESISTÊNCIA À FRATURA E NAS CARACTERÍSTICAS MICROESTRUTURAIS DE UMA CERÂMICA ODONTOLÓGICA.
Authors: Freitas Larissa Costa , Almeida Cleiton Luiz , Miranda Jean Soares , Gonçalves Lourenço Mariella Agostinho , Leite Fabíola Pessoa Pereira 
Published: May 2024

Objetivo: Avaliar a influência do tratamento de superfície na resistência à flexão biaxial e alterações na superfície por meio de MEV. Métodos: Foram utilizados 54 discos cerâmicos de blocos CAD/CAM feldspática reforçada por leucita (IPS Empress Cad Cerec, Ivoclar Vivadent). Os discos foram divididos em três grupos (n=18), de acordo com o tratamento de superfície: àcido hidrofluorídrico 5% 20s e silano (HF20); àcido hidrofluorídrico 5% 60s e silano (HF60) e primer cerâmico autocondicionante (P). As amostras foram cimentadas em disco de resina epóxi com cimento resinoso dual, e submetidas à fadiga mecânica (1,2 x 106 ciclos, 50N, 3,8 Hz) e ao teste de flexão biaxial (1 mm/min; 1.000 Kgf). Resultados: Para HF20, o resultado foi estatisticamente superior ao HF60 (p < 0,001); P se mostrou similar aos demais. O Weibull indicou que o tratamento de maior confiabilidade foi o P. As microscopias obtidas nos grupos HF evidenciaram o aumento de dissolução de matriz vítrea e a exposição dos demais conteúdos. Já para o grupo P, observa-se uma homogeneidade de superfície maior. Conclusão: O tipo de tratamento de superfície interfere na resistência da cerâmica reforçada com leucita quando diferentes tempos de condicionamento são utilizados.
IMPACTOS DA PANDEMIA DA COVID-19 ENTRE IDOSOS RESIDENTES NO BRASIL: COMPORTAMENTO ALIMENTAR, MODO DE COMPRAR ALIMENTOS E ESTADO EMOCIONAL
Authors: Borges Oliveira Jéssica , Arruda de Souza Monnerat Juliana , Ribeiro de Souza Pedro , Aline Davila Pereira  , De Souza Rocha Gabrielle , Frauches Medeiros Coimbra Renata 
Published: May 2024

INTRODUÇÃO: A pandemia de COVID-19 (Coronavírus disease 2019) e o consequente período de isolamento social pode ter desencadeado alterações nos hábitos alimentares, no modo de aquisição dos gêneros alimentícios e nas percepções dos sentimentos, especialmente na população de idosos, que constituem um grupo de risco. OBJETIVO: Identificar o impacto da pandemia da COVID-19 nos hábitos alimentares, no modo de aquisição dos gêneros alimentícios e nos sentimentos envolvidos com o isolamento social em idosos brasileiros com acesso a internet. MÉTODOS: Estudo aprovado pelo Comitê de Ética e Pesquisa do Instituto de Saúde de Nova Friburgo (ISNF/UFF)​​ sob nº 33370720.3.0000.5626, observacional, de corte transversal, com idosos (maiores de 60 anos) brasileiros, que participaram do estudo respondendo a um questionário online, com perguntas sobre seus hábitos alimentares e possíveis mudanças de rotina decorrentes da pandemia no período de julho/2020 a maio/2021. Os dados foram analisados no software IBM SPSS Statistics 20 e foi considerado um nível de significância de 5% (p<0,05). RESULTADOS: Obteve-se 506 respostas com predominância do sexo feminino (72,9%; n=369), provenientes de todas as regiões do Brasil. Em relação ao isolamento social, 81,8% (n=414) dos participantes declararam que cumpriram esta medida. Ao analisar os dados sobre o modo de comprar alimentos, os idosos relataram que houve uma diminuição de 65,3% (n=333) nas idas presenciais a feiras e mercados, um aumento de 41,5% (n=210) no uso de delivery para realização das compras e 29,4% (n=149) dos participantes relataram aumentar a dependência de terceiros para a realização de suas compras. E no que se refere à organização das compras desses gêneros, as pessoas que recebiam entre 8 e 10 salários mínimos relataram um aumento (47,5%; n=29) na prática de estocar alimentos. Já no que se refere ao padrão alimentar dessa população, 62,6% (n= 317) negaram alteração para os principais grupos alimentares, tanto homens quanto mulheres. O último item analisado foi o estado emocional dos participantes durante o período de isolamento social, em que foi mais evidente os sentimentos de ansiedade (62,5%; n= 316) e medo (51%; n=258). O sexo e a renda familiar não implicaram mudança significativa nos sentimentos experimentados pelos idosos. CONCLUSÃO: Os idosos aumentaram o uso de delivery para a aquisição de insumos alimentícios assim como na dependência de terceiros para a realização de suas compras como alternativa às idas presenciais a feiras e supermercados. Em relação aos hábitos de organização, os indivíduos com maior poder aquisitivo aumentaram a prática de estocar alimentos. Em relação às emoções sentidas durante esse período de pandemia, prevaleceu entre as respostas, os sentimentos de ansiedade e medo em relação ao cenário inesperado.
SÍNDROME DE TAKOTSUBO SECUNDARIA AO FEOCROMOCITOMA: UMA REVISÃO DE LITERATURA
Authors: Bona Caroline de Caldas Pereira , Barbosa Adriano José Rêgo , Cerqueira Camilla Athaides Carvalho , Soares Lauro Vinicius Evangelista Ferreira , Brito Claudiana Veras de , Dias Arthur Felipe , Oliveira Wendell Moreira de , Malta Debora Maria Rios , Sousa Thaylan Vieira de , Menezes João Gabriel Pinheiro de , Garcia Denys Leandro Viana , Aldeman Nayze Lucena  Sangreman 
Published: May 2024

Introdução: A Síndrome de Takotsubo (ST), comumente precipitada por eventos emocionais ou físicos, compartilha características clínicas com o infarto agudo do miocárdio, mas sem doença arterial coronária significativa. O feocromocitoma, ao secretar catecolaminas, pode desencadear síndromes cardiovasculares graves, incluindo a ST. Esta revisão busca explorar a relação entre essas duas condições.. Metodologia: Uma revisão integrativa foi realizada utilizando bases de dados indexadas entre 2019 e 2024. Foram selecionados 20 artigos que abordavam a relação entre ST e feocromocitoma, considerando critérios de inclusão e exclusão. Resultados e discussão: Os artigos revisados destacaram casos de pacientes com ST associada ao feocromocitoma, demonstrando a importância do diagnóstico diferencial e do tratamento adequado. A presença de feocromocitoma deve ser considerada em pacientes com ST, especialmente naqueles com história de hipertensão maligna. A colaboração entre cardiologistas e endocrinologistas é crucial para o diagnóstico precoce e manejo adequado da ST secundária ao feocromocitoma, visando evitar complicações graves e melhorar os resultados clínicos. Conclusão: A associaçaõ entre a TS e o feocromocitoma é um desafio diagnóstico crucial devido à sua apresentação sintomática complexa e ambiental fatal.No entanto, há uma lacuna na literatura sobre a epidemiologia dessa associação, destacando a necessidade de mais pesquisas nessa área.
ANALISIS PERBANDINGAN METODE PELAKSANAAN PEKERJAAN PERANCAH BAMBU DENGAN SCAFFOLDING
Authors: Praganingrum Tjokorda Istri , Hermawan I Putu Yana , Mahemba Emanuel 
Published: May 2024

Pada pembangunan gedung pendidikan SDN 1(satu) Penatih, pekerjaan lantai 1(satu) mengunakan perancah bambu dan pekerjaan plat lantai 2 (dua) scaffolding, berdasarkan hal tersebut penulis ingin melakukan analisis perbandingan metode pelaksanaan pekerjaan perancah bambu dengan scaffolding. Analisis ini bertujuan agar penulis dapat mengetahui perbandingan metode pelaksanaan, perbandingan waktu dan biaya pekerjaan antara penggunaan perancah bambu dengan penggunaan scaffolding pada pembangunan gedung pendidikan SDN 1 Penatih. Metode penelitian yang digunakan adalah metode deskritif dengan pendekatan kualitatif dan kuantitatif. Data yang digunakan pada penelitian ini adalah gambar kerja plat lantai 1(satu) dan 2(dua), rancangan anggaran biaya (RAB), daftar harga satuan bahan dan tenaga kerja, analisis harga satuan SNI dan time schedule. Dari hasil analisis maka dapat diperoleh metode pelaksanaan pekerjaan perancah bambu dengan waktu pekerjaan 39 hari kalender dan biaya bahan Rp.11.658.600 dan biaya tenaga kerja Rp.29.604.911,80 jadi total biaya pekerjaan perancah bambu Rp.41.263.511,80, dalam 1 periode pekerjaan. Sedangkan untuk pekerjaan scaffolding metode waktu pekerjaan 10 hari kalender, biaya sewa scaffolding Rp. 21.472.000,00 dan biaya tenaga kerja Rp.13.740.216,17 dengan total biaya pekerjaan scaffolding Rp.35.212.216,17, dalam 1 periode pekerjaan. Maka perbandingan metode pelaksanaan, pekerjaan perancah bambu dan scaffolding dalam 1 periode kerja. Pekerjaan perancah bambu dengan proses pekerjaan yang lama dan bahannya yang relatife murah, banyak tersedia dan mengakibatkan limbah kayu, sedangkan pekerjaan scaffolding: harga sewa yang relatif mahal, membutuhkan katrol, dan susahnya akses kelantai 2, sedangkan selisih waktu pekerjaan 29 hari kerja, dan selisih biaya Rp.5.605.731,81.
KAJIAN PENERAPAN STANDARDISASI SISTEM MANAJEMEN MUTU ISO 9001:2015 PADA PERUSAHAAN KONTRAKTOR DI KABUPATEN KARANGASEM
Authors: Istri Lestari I Gusti Agung Ayu , Angga Diputera I Gede , Eko Dwi Purwana I Kadek 
Published: May 2024

Dalam upaya mengetahui penerapan sistem manajemen mutu ISO 9001:2015 pada perusahaan – perusahaan kontraktor di Kabupaten Karangasem dan sebagai bukti data yang dihasilkan akan menjadi efektif dalam menerapkan sistem manajemen mutu ISO 9001:2015. Penerapan sistem manajemen mutu ISO 9001:2015 pada perusahaan tersebut, dilakukan dengan cara observasi dan wawancara menggunakan checklist audit pada perusahaan PT. Arsa Buana Manunggal dan PT. Dharma Buana Karya. Dari hasil analisis rata-rata Penerapan Sistem Manajemen Mutu ISO 9001:2015 pada perusahaan kontraktor di Kabupaten Karangasem (Studi kasus : PT. Arsa Buana Manunggal dan PT. Dharma Buana Karya) adalah “Baik Sekali”, dengan hasil akhir rata-rata pada PT. Arsa Buana Manunggal sebesar 83,47% dan PT. Dharma Buana Karya sebesar 82,90%. Aspek yang paling mempengaruhi adalah klausul 9 (Evaluasi Kinerja) sebesar 88,17%, dikarenakan penerapan klausul 9 pada perusahaan-perusahaan kontraktor di Kabupaten Karangasem sudah sangat baik, dikarenakan perusahaan telah melaksanakan monitoring–monitoring proses, melaksanakan audit mutu internal dan melaksanakan rapat tinjauan manajemen yang dihadiri oleh top manajemen beserta seluruh staf perusahaan.

Kata kunci: Sistem Manajemen Mutu, ISO 9001:2015, Checklist, Skala Rating
UJI MUTU SIMPLISIA DAN EKSTRAK ETANOL 96% RIMPANG JAHE (Zingiber officinale Roscoe)
Authors: Efrilia Mega , Chandra Pra Panca Bayu , Endrawati Santi 
Published: May 2024

Ginger (Zingiber officinale Roscoe) has long been commonly consumed as a spice and traditional medicine. The aim of the research was to test the quality of simplicia and ginger rhizome extract. The testing procedure consists of preliminary quality testing, testing specific and non-specific parameters. Fresh ginger rhizomes are processed to become simplicia powder. The simplicia was extracted using the maceration method using 96% ethanol solvent, then concentrated until a thick extract was obtained. Simplicia and extracts are subjected to quality testing. The results showed that the level of foreign organic matter of simplicia was 1.34%, the fine degree of simplicia was 4/18 through mesh sieve number 4 100% and number 18 was 96%. Identity of the research sample Zingiber officinale Roscoe. The levels of compounds in simplicia that are soluble in water and ethanol are 16.86 ± 0.45% and 6.81 ± 0.23%. The levels of compounds in the extract that were soluble in water and ethanol were 13.55 ± 0.21% and 13.72 ± 0.16%. Drying loss of simplicia is 0.80 ± 0.52% and extract is 9.53 ± 0.25%. The water content for simplicia is 9.03 ± 0.64% and extract is 12.33 ± 1.53%. The specific gravity of the simplicia is 0.7849 ± 0.06 g/mL and the extract is 0.85 ± 0.09 g/mL. The total ash content of simplicia was 4.09 ± 0.97% and the extract was 3.63 ± 0.44%. The water-soluble ash content in simplicia is 2.17 ± 0.31% and the extract is 2.6 ± 0.26%. The insoluble ash content of simplicia acid was 1.11 ± 0.32% and the extract was 0.5 ± 0.46%. Testing the quality of simplicia and ginger rhizome extract met the requirements, namely all specific parameters as well as non-specific parameters (drying loss, total ash and acid insoluble ash).
SOSIALISASI PEMANFAATAN MOBILE JKN UNTUK MENINGKATKAN AKSES PELAYANAN KESEHATAN DI KECAMATAN TARAJU KABUPATEN TASIKMALAYA JAWA BARAT
Authors: Sugiarti Ida , Sukawan Ari , Wahyuni Ida , Suhenda Andi , Rahayu Ayu , Fedly Fery 
Published: May 2024

Jaminan kesehatan nasional merupakan program pemerintah agar seluruh penduduk Indonesia dapat mengakses fasilitas pelayanan kesehatan dengan baik. Transformasi teknologi kesehatan di Indonesia diantaranya adanya digitalisasi melalui mobile JKN untuk layanan primer dan layanan rujukan. Aplikasi mobile JKN merupakan inovasi BPJS Kesehatan dalam meningkatkan pelayanan kesehatan namun banyak masyarakat belum menggunakan aplikasi itersebut karena keterbatasan pemahaman tentang aplikasi. Sosialisasi pemanfaatan mobile JKN terhadap 28 kader menawarkan solusi untuk meningkatkan pemahaman Masyarakat di Puskesmas Taraju. Kegiatan dilakukan secara luring dengan metode ceramah, tutorial, dan tanya jawab. Diperoleh peningkatan pengetahuan kader dari 50% kategori Baik dan Cukup saat pretest menjadi 96% memiliki kategori Baik. Perubahan pengetahuan kader dicapai dengan rata-rata peningkatan nilai dari pre dan post test adalah 13%. Diperlukan kontinuitas peningkatan pengetahuan kader secara teknis untuk dapat memberikan dan menyebarkan fitur aplikasi secara tepat kepada masyarakat.
New Minerals from the Redmond Mine, North Carolina, USA: VII. Zincochenite, the Zn Analogue of Chenite
Authors: Kampf Anthony R. , Smith Jason B. , Hughes John M. , Ma Chi , Emproto Christopher 
Published: May 2024

Abstract
The new mineral zincochenite, Pb4Zn(OH)6(SO4)2 (IMA2022-025), was found in the Redmond mine, Haywood County, North Carolina, USA, where it occurs in a highly unusual secondary assemblage that comprises a variety of rare Pb-Zn-Cu sulfates, thiosulfates, and carbonates. Zincochenite was found in vugs in massive galena-sphalerite-chalcopyrite-quartz in close association with bechererite, chenite, cherokeeite, elyite, lanarkite, and steverustite. Zincochenite crystals vary in habit including tablets, blades, and prisms, up to about 0.5 mm in maximum dimension. Crystals always occur in tightly intergrown subparallel clusters. The color is most commonly light blue, the streak is white, and the luster is vitreous to resinous. The mineral is brittle with curved and irregular fracture and one fair cleavage, probably on . The Mohs hardness is about 3½. The calculated density is 5.939 g/cm3. The mineral is biaxial (−) with α = 1.875(5), β = 1.900(5), γ = 1.915(5). The 2V is 78.4(5)° with strong r &gt; v dispersion. The partially determined optical orientation is Y ≈ and there is no pleochroism. Electron microprobe analyses provided the empirical formula Pb4.00(Zn0.94Cu2+0.06)Σ1.00(SO4)1.81(S2O3)0.19(OH)6. Zincochenite is triclinic, P, a = 5.883(4), b = 7.938(5), c = 7.948(5) Å, α = 110.511(12), β = 98.497(10), γ = 100.152(8)°, V = 333.2(3) Å3, and Z = 1. Zincochenite is isostructural with chenite. In the crystal structure (R1 = 0.0874 for 936 I &gt; 2σI), short bonds between the Pb atoms and OH groups define a chain along [011] and these chains are bridged by ZnO2(OH)4 octahedra to form sheets parallel to . SO4 tetrahedra decorate both sides of the sheets. The sheets are linked together in the direction via long Pb–O bonds and hydrogen bonds.
What Prevents the Crystallization of Magma from the Roof Downwards in Large Basaltic Magma Chambers?
Authors: Latypov Rais , Chistyakova Sofya 
Published: May 2024

Abstract
A common feature of layered intrusions is the absence of the Upper Border Series (UBS)—a rock sequence that is expected to grow from the roof downwards in large basaltic magma chambers. This is surprising because magma cooling occurs predominantly through the roof of magma chambers. The lack of the UBS is thus indicative of some fundamental reason that prevents basaltic magmas from crystallizing at the chamber roof. Here, we propose that this could be attributed to a layer of anatectic granitic melt that develops on the top of evolving basaltic chambers. The layer may be formed by partial melting of silica-rich crustal rocks in response to the upward transfer of heat from the crystallizing magma. The heat transfer takes place through the initial UBS, resulting in this unit becoming suspended between two buoyant liquids: granitic melt above and basaltic melt below. This unstable position leads to the disruption of the UBS and its collapse onto the temporary chamber floor. A two-layer magma system thus forms, with a light granitic melt floating atop a denser basaltic magma. The granitic melt is expected to be superheated with respect to its liquidus temperature via heat transfer from the underlying basaltic magma. In the absence of a solid surface at the top of the basaltic magma layer, the growth of the UBS cannot resume due to the lack of a solid place for new crystals to attach. Further crystallization of basaltic magma may therefore only continue from the base upwards, producing a layered intrusion that consists of only floor rock sequences.