bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Impact of RED III Directive on the Use of Renewable Fuels in Transport on the Example of Estonia
Authors: Ilves Risto , Küüt Arne , Allmägi Roland , Olt Jüri 
Published: June 2024

Abstract
Over the past two decades, there has been an increasing use of biofuels worldwide, especially in Europe. The main objective is to reduce greenhouse gas emissions, particularly carbon dioxide (CO2), from transportation. The regulation of fuels produced from biomass and other renewable sources at the EU level is primarily governed by the Renewable Energy Directive (RED). As of today, RED III directive has come into effect, significantly altering the EU fuel market by 2030. The main change involves an increase in the share of renewable fuels in transport and the non-use of first-generation fuels. Since all EU member states are obliged to comply with the RED III directive, it is essential to assess the current status of each member state in meeting the requirements for transport fuels. Therefore, the aim of this article is to analyse the impact of the RED III directive on the use of renewable fuels in the transport sector. Specifically, it provides an overview of various RED directives’ requirements, analyses the shares of renewable fuels in fossil diesel in Estonia under different RED III compliance scenarios, and presents an overview of the situation regarding the use of renewable fuels in Estonia. The article is based on a literature review, and fuel share calculations are based on RED III directive calculation methodologies. The results of the study indicate that if the requirement for the share of renewable energy used in transport is 29 %, using only HVO (Hydrotreated Vegetable Oil) to achieve this goal would require replacing 30.3 % of diesel with HVO. In cases where there is a requirement to reduce the greenhouse gas emission intensity of fuels in the transport sector by at least 14.5 % by 2030, the volumetric share of HVO fuel must meet certain criteria based on the raw material. For example, fuel produced from residues must contain a minimal amount of biocomponents. In this context, biologically derived oil is initially used, such as in food preparation. Subsequently, after its use in food preparation, it is processed into fuel. The article also addresses cases where biogas is introduced as a renewable component in replacing diesel.
Numerical Evaluation of Harmful Consequences after Accidental Explosion at a Hydrogen Filling Station
Authors: Skob Yurii , Yakovlev Sergiy , Pichugina Oksana , Kalinichenko Mykola , Kartashov Oleksii 
Published: June 2024

Abstract
This study aims to present computational technology that can be used to evaluate numerically the harmful environmental consequences caused by an accidental hydrogen release from failed high-pressure dispensing cylinders and its explosion at a vehicle hydrogen filling station. A coupled problem of a hydrogen explosion products expansion in the atmospheric ground layer and a harmful explosion pressure wave shock impact on service personnel and infrastructure buildings at an accident site is solved by means of computer experiment simulation series. A spatial time-dependent model of compressible hydrogen-air mixture flow is used to obtain pressure history in calculation area in order to assess maximum overpressure in control points of human possible locations and on building surfaces exposed to hydrogen blast wave impact. A deterministic impact consequences model is based on comparing maximum overpressure values extracted from the mathematical model with threshold ranges corresponding to certain degrees of human damage and infrastructure destruction. The presented computer technology allows safety experts to identify potentially dangerous zones by means of mathematical modelling and recommend effective protection measures to mitigate negative consequences of explosions.
Mechanical Properties and Lifecycle Assessment of a Green Alkali-Activated Mortar Based on Biomass Wood Ash
Authors: Du Yiying , Pundiene Ina , Pranckeviciene Jolanta , Korjakins Aleksandrs , Kligys Modestas 
Published: June 2024

Abstract
Portland cement (PC) is the most commonly used binder material for producing concrete. Nonetheless, increasing concerns have been attached to its manufacture which is highly energy-intensive and generates a large quantity of greenhouse gases. Developing alkali-activated materials as eco-binders is a sustainable replacement for PC and many investigations have been reported successfully utilizing industrial wastes as precursors. However, owing to the low reactivity, studies regarding biomass wood ashes (BWA) are still limited. To produce a green cementless alkali-activated mortar material, in this study, biomass fuel by-products – biomass wood bottom ash and biomass wood fly ash – were binarily used as precursors. Sodium hydroxide NaOH at 10 mol/L and calcium hydroxide Ca(OH)2 at 20 % by binder mass were applied as alkali activators. Recycled sand, substituting natural sand, was adopted as fine aggregate with an aggregate/binder ratio of 2 to reduce the consumption of non-renewable natural resources. Compressive and flexural strength were tested to evaluate the mechanical performance. A cradle-to-gate lifecycle assessment was conducted to analyse the environmental impacts. The results reveal that the alkali-activated mortar has less environmental impact compared to the traditional PC mortar. NaOH solution is the primary source of environmental influence and BWA only contributes to very limited impacts. The usage of Ca(OH)2 effectively improves the mechanical strength and compared to NaOH, it leads to decreased energy demand, requires fewer preparation steps and is less dangerous for operation.
Mediatisasi Dukungan Sosial pada Komunitas Virtual Wanita Hamil di Facebook
Authors: Bilqis Fatimah 
Published: June 2024

Kehamilan, kendati dianggap sebagai fase bahagia, juga membawa ambiguitas dan tingkat stres yang meningkat akibat perubahan tubuh yang signifikan sehingga membuat mereka membutuhkan perlindungan dan dukungan sosial. Kini para wanita hamil dapat menggunakan media sosial untuk memperoleh dukungan sosial secara online. Penelitian ini bertujuan untuk melihat proses mediatisasi dukungan sosial online dalam grup Facebook Kumpulan Ibu Hamil Indonesia (KIHI) dan juga menjabarkan tentang implikasi dari mediatisasi dukungan sosial. Penelitian ini menggunakan pendekatan netnografi untuk memahami mediatisasi dukungan sosial online dalam grup Facebook Kumpulan Ibu Hamil Indonesia (KIHI). Data dikumpulkan melalui wawancara semi terstruktur terhadap lima orang informan yang memiliki latar belakang usia, lokasi dan pekerjaan yang berbeda. Hasil penelitian menunjukkan bahwa proses mediatisasi mencakup ekstensi, substitusi, amalgamasi, dan akomodasi, dengan implikasi berupa akses informasi yang mudah, kerahasiaan identitas, ekspresi emosi melalui emoji, dan perluasan ranah privat ke ruang publik. Pregnancy, although considered a joyful phase, also brings ambiguity and increased stress levels due to significant changes in the body, which makes individuals require protection and social support. Recently, pregnant women can use social media to obtain social support online. The purpose of this study is to examine the process of online social support mediatization in the Facebook group Komunitas Ibu Hamil Indonesia (KIHI) and to explain the implications of social support mediatization. This study used a netnographic approach to investigate the mediatization of online social support in the Kumpulan Ibu Hamil Indonesia (KIHI) Facebook group. Data was gathered through semi-structured interviews with five informants ranging in age, geography, and work experience. The research results indicate that the process of mediatization involves extension, substitution, amalgamation, and accommodation, with implications such as easy access to information, identity confidentiality, emotional expression via emojis, and the expansion of the private sphere into the public sphere.
Model Motif dan Intensi Berbagi Informasi Pengguna Free4talk
Authors: Saputri Dahelia , Fuady Ikhsan 
Published: June 2024

Pengguna memiliki motif tertentu dalam menggunakan situs Free4talk, situs edukasi yang memungkinkan penggunanya mempelajari bahasa asing. Tujuan penelitian ini mengetahui model motif pengguna Free4talk dan intensi berbagi informasi pengguna Free4talk dalam proses belajar bahasa asing, dengan teori Uses and Gratification dan teori Reasoned Action. Penelitian ini merupakan penelitian kuantitatif menggunakan metode survei dengan menyebarkan kuesioner secara daring. Teknik pengambilan sampel menggunakan accidental sampling terhadap 204 pengguna situs Free4talk. Analisis data menggunakan Structural Equation Modeling (SEM) dengan LISREL 8.80 Windows. Hasil penelitian menunjukkan model motif pengguna situs Free4talk dan intensi berbagi informasi bagi pengguna Free4talk dalam proses belajar bahasa asing terkategori baik (Good Fit). Intensi keberlanjutan (continuance intention) penggunaan situs Free4talk dipengaruhi oleh motif perolehan kenikmatan (perceived enjoyment) dan daya tarik media (media appeal). Sedangkan intensi berbagi informasi (explicit knowledge) dipengaruhi oleh motif berbagi informasi (information sharing) dan daya tarik media (media appeal), dan intensi berbagi informasi (implicit knowledge) dipengaruhi oleh motif berbagi informasi dan intensi keberlanjutan (continuance intention) penggunaan situs Free4talk.Users have specific motives for utilizing Free4talk, an educational platform that enables users to learn foreign languages. The objective of this research is to uncover the motivational model of Free4talk users and their intention to share information while learning a foreign language, employing the Uses and Gratification theory and the Reasoned Action theory. This study adopts a quantitative research approach with a survey method, utilizing online questionnaires for data collection. Accidental sampling was employed, targeting 204 users of Free4talk. Data analysis was conducted using Structural Equation Modeling (SEM) with LISREL 8.80 Windows. The study's findings indicate that the motivational model for Free4talk users and their intention to share information during the foreign language learning process are classified as good fit. The continuance intention of using Free4talk is influenced by motives related to perceived enjoyment and media appeal. The intention to share explicit knowledge is influenced by motives for information sharing and media appeal, while the intention to share implicit knowledge is influenced by information sharing motives and the continuance intention of using Free4talk.
The Identity Construction of BTS Fans on Whatsapp Group
Authors: Asrita Stara 
Published: June 2024

One of the phenomena of fandom fanaticism in Indonesia is the Korean boyband BTS, with fans known as Army. There are several BTS fan communities in Indonesia, one of which is BTS Army Indonesia Animo (BAIA), based in Jogja. This research aims to understand how the identity construction of the Army unfolds within the BAIA Jogja WhatsApp group. The theoretical framework employed is Peter L. Berger's social construction, involving three analytical stages: externalization, objectivation, and internalization. Utilizing virtual ethnography, the study includes interviews with four community members as informants. The researcher also directly observed the WhatsApp group and documented data collection. The findings reveal that Army members began to admire BTS for their handsomeness, easily relatable songs, and captivating stage presence during the externalization process. Each Army member adapted to communicate effectively within the WhatsApp group in the objectivation stage. In the internalization stage, the sense of connection between Army and BTS members is powerful. This bond is so strong that Army members perceive BTS as their boyfriends or husbands. Salah satu fenomena tentang fanatisme fandom di Indonesia adalah boyband dari Korea yang bernama BTS yang memiliki penggemar bernama Army. Di Indonesia, ada beberapa komunitas fans BTS, salah satunya adalah BTS Army Indonesia Animo (BAIA) yang berbasis di Jogja. Penelitian ini ingin mengetahui bagaimana konstruksi identitas Army di WhatsApp grup BAIA Jogja. Teori yang digunakan adalah konstruksi sosial Peter L. Berger dengan tiga tahap analisis yaitu eksternalisasi, objektivasi dan internalisasi. Penelitian ini menggunakan metode etnografi virtual dengan melakukan wawancara kepada empat informan yang merupakan anggota komunitas. Peneliti juga melakukan pengamatan langsung di WhatsApp grup dan dokumentasi dalam pengumpulan data. Hasil penelitian menunjukkan bahwa dalam proses eksternalisasi, Army mulai menyukai BTS karena mereka tampan, lagu-lagu mereka mudah untuk didengarkan dan penampilan menarik ketika di panggung. Tahap objektivasi, masing-masing Army harus beradaptasi dengan anggota lain ketika berkomunikasi di WhatsApp grup. Tahap internalisasi, perasaan memiliki antara Army dan anggota BTS sangat kuat. Begitu kuatnya hubungan tersebut, para Army menganggap bahwa anggota BTS adalah pacar atau suami mereka.
Program Voluntrip Sub-kultur Zillenial dalam Membentuk Kesadaran Partisipasi Sosial
Authors: Rahma Adisty Aulia , Wempi J A 
Published: June 2024

Voluntrip merupakan program yang fokus dalam menjalankan kegiatan sosial dengan mengajak kelompok Zillenial untuk berpartisipasi. Penelitian ini menggunakan model Preparation, Engagement, and Perpetuation (PEP) untuk mengetahui serta memahami program Voluntrip dalam menumbuhkan kesadaran partisipasi sosial terhadap kelompok Zillenial. Penelitian ini menggunakan pendekatan kualitatif dengan teknik pengumpulan data dengan cara metode wawancara yang mendalam, focus group discussion, observasi partisipan, dan studi literatur. Hasil penelitian menunjukkan bahwa Voluntrip telah melakukan seluruh tahap pada model PEP mulai dari preparation, volunteer engagement, dan perpetuation. Hasil penelitian menunjukkan bahwa dengan penerapan model PEP, Voluntrip berhasil membentuk kesadaran kelompok Zillenial terhadap kegiatan sosial. Temuan lainnya adalah dengan adanya keterlibatan publik figur juga turut mendukung dan membentuk kelompok Zillenial tertarik dan mempercayai program-program dari Voluntrip. Voluntrip is a program that focuses on executing social activities by inviting Zillennial groups to participate. This research employs the Preparation, Engagement, and Perpetuation (PEP) model to ascertain and comprehend the Voluntrip program's role in fostering social participation awareness among Zillennial groups. The study utilizes a qualitative approach with data collection techniques such as in-depth interviews, focus group discussion, participant observation, and literature review. The research findings indicate that Voluntrip has successfully gone through all stages of the PEP model, including preparation, volunteer engagement, and perpetuation. The results demonstrate that, through the implementation of the PEP model, Voluntrip has effectively instilled awareness in Zillennial groups regarding social activities. Another notable discovery is that the involvement of public figures also supports and shapes the interest and trust of Zillennial groups in Voluntrip's programs.
The Intimate Relationship Between Exclusive Breastfeeding and Cognitive Development
Authors: Ribeiro Anne Botelho dos Santos , Pinho Lênio Airam de 
Published: June 2024

Objective: to explore the multiple aspects of this connection, addressing both the cognitive benefits of exclusive breastfeeding and the underlying mechanisms that underlie this relationship with cognitive development. Methodology: this is an integrative review of the literature. The guiding question was adopted: "What is the impact of exclusive breastfeeding in the first months of life in promoting children's cognitive development?" To construct the research, data collection and analysis was carried out through the Medical Literature Analysis and Retrieval System Online, Scientific Electronic Library Online and the Virtual Health Library Portal through the following Health Sciences Descriptors (DeCS): "Breastfeeding", "Cognition", "Psychology" and "Nutritional Epidemiology" combined with each other by the Boolean operator AND with their respective counterparts in Mesh Terms. Results and Discussion: after completing the methodological procedures, 14 articles available on the VHL Portal, in the PubMed and SciELO databases were selected, which show that there is a recommendation regarding exclusive breastfeeding in the first six months of life as the best means of nutrition for babies, considering that, in addition to providing essential nutrients, breast milk is rich in antibodies, enzymes and other components that promote health and protection against diseases, influencing the cognition process of individuals. Final Considerations: it is imperative that health professionals, policy makers, communities and families recognize and value the intimate relationship between exclusive breastfeeding and children's cognitive development.
Pengaruh Media Tanam dan Pemberian Berbagai Dosis Kalium Nitrat terhadap Pertumbuhan dan Produksi Tanaman Mentimun (Cucumis sativus L.)
Authors: Astuti Endah Devi , Hariyono Kacung 
Published: June 2024

Produksi mentimun di Indonesia dari tahun ke tahun mengalami peningkatan, namun masih tergolong rendah, yaitu rata-rata 10 ton/ha. Sehingga perlu usaha untuk meningkatkan produksi mentimun dengan berbagai macam teknologi yang tepat dalam budidaya mentimun diantaranya penggunaan media tanam dan pemupukan yang tepat. Media tanam dapat dikombinasikan untuk mendapatkan berbagai nutrisi yang tepat untuk tanaman dapat tumbuh, berkembang, dan bereproduksi dengan baik. Salah satu pupuk yang dibutuhkan tanaman untuk memenuhi unsur nitrogen dan kalium adalah Kalium Nitrat (KNO3). Penelitian ini bertujuan untuk mengetahui interaksi antara jenis media tanam dengan berbagai dosis kalium nitrat terhadap pertumbuhan dan produksi tanaman mentimun. Penelitian dilakukan dalam Rancangan Acak Lengkap Faktorial dan diulang 3 kali dengan faktor pertama yaitu jenis media tanam yang terdiri atas empat taraf yaitu tanah (P1), tanah + cocopeat (P2), tanah + arang sekam (P3), dan tanah + pasir (P4). Faktor kedua yaitu dosis KNO3 yang terdiri atas 4 taraf, yaitu Kontrol-NPK (K1), KNO3 10 gr/tanaman (K2), KNO3 15 gr/tanaman (K3) dan KNO3 20 gr/tanaman (K4). Hasil penelitian menunjukkan bahwa interaksi kombinasi perlakuan media tanam dan dosis KNO3 berpengaruh nyata terhadap parameter diameter batang dengan perlakuan P3K3 sebagai perlakuan terbaik. Media tanam terbaik yang mempengaruhi pertumbuhan dan produksi tanaman mentimun adalah media yang terdiri atas tanah dan arang sekam dengan perbandingan 1:1. Dosis KNO3 yang memberikan pengaruh terbaik terhadap pertumbuhan dan produksi tanaman mentimun adalah dosis 15 gr/tanaman.
Tingkat Keeratan Hubungan pH Tanah dan Akar Edamame pada Media Tanah Gambut yang Diaplikasi Kompos Berbahan Ampas Kopi, Jerami Padi, dan Limbah Baglog Jamur Tiram
Authors: Saputra Riza Adrianoor , Bahjatussaniah  , Zidani Muhammad Aldy , Rahcmawati Lia , Rahman Muhammad Raihan Aulia 
Published: June 2024

Pemanfaatan lahan gambut untuk pertanian khususnya budidaya edamame seringkali mengalami kendala terkait dengan tingkat kesuburan tanah yang rendah dan biofisik lahan yang rapuh. Alternatif teknologi pengelolaan lahan yang dapat dilakukan untuk meningkatkan produktivitas lahan gambut adalah ameliorasi. Bahan amelioran dapat menggunakan kompos dari limbah pertanian antara lain ampas kopi, jerami padi, dan limbah baglog jamur tiram. Penelitian ini bertujuan untuk mengetahui dosis kompos ampas kopi, jerami padi, dan limbah baglog jamur tiram terbaik dalam meningkatkan pH tanah gambut dan pertumbuhan akar edamame, serta mengetahui tingkat keeratan hubungan antar peubah. Penelitian ini menggunakan rancangan acak lengkap faktorial tersarang, faktor dosis kompos tersarang pada jenis kompos. Faktor jenis kompos (A) terdiri atas tiga perlakuan: a1 = kompos ampas kopi, a2 = kompos jerami padi, a3 = kompos limbah baglog jamur tiram, sedangkan faktor dosis kompos (B) terdiri atas lima perlakuan: b0 = 0 t ha-1 (kontrol), b1 = 5 t ha-1, b2 = 10 t ha-1, b3 = 15 t ha-1, b4 = 20 t ha-1. Hasil penelitian menunjukkan bahwa dosis 10 t ha-1 kompos ampas kopi, 20 t ha-1 kompos jerami padi, dan 15 t ha-1 kompos limbah baglog jamur tiram mampu meningkatkan pH tanah gambut. Dosis 20 t ha-1 kompos ampas kopi dan 10 t ha-1 kompos jerami padi mampu meningkatkan panjang akar edamame. Dosis 15 t ha-1 kompos ampas kopi, 5 t ha-1 kompos jerami padi, dan 5 t ha-1 kompos limbah baglog jamur tiram mampu meningkatkan jumlah bintil akar edamame. Tingkat keeratan hubungan antara pH tanah dengan panjang akar edamame (r = 0,3987) dengan korelasi cukup, pH tanah gambut dengan jumlah bintil akar edamame (r = 0,2394) dengan korelasi lemah, dan panjang akar edamame dengan jumlah bintil akar edamame (r = 0,6072) dengan korelasi kuat.
Respon Perlakuan Asam Jasmonat, Asam Salisilat dan Kitosan terhadap Produksi Metabolit Sekunder pada Kalus Padi Daun Berpigmen
Authors: Khofifa Rendryana Aulia Nur , Ubaidillah Mohammad 
Published: June 2024

Padi Black Madras (Oryza sativa L.) merupakan padi hias yang selain biasa digunakan sebagai ornamen, juga dapat digunakan sebagai sumber pharmaceutical yang bermanfaat bagi kesehatan manusia. Namun saat ini belum banyak diketahui potensialnya menjadi sumber pharmaceutical seperti metabolit sekunder. Metabolit sekunder yang dihasilkan oleh padi black madras ini dapat diambil melalui kultur jaringan dengan cara elisitasi. Penelitian ini dilakukan untuk mengetahui respon kalus padi dan produksi metabolit sekunder pada padi Black Madras terhadap pemberian asam jasmonat, asam salisilat, dan kitosan. Hasil penelitian ini menunjukkan pemberian elisitor memberikan respon pada kalus padi dan produksi metabolit sekunder padi black madras terhadap pemberian asam jasmonat, asam salisilat, dan kitosan. Varietas terbaik didapatkan pada varietas IR64 sebagai kontrol daripada Black madras dengan perlakuan dengan kandungan fenolik (0,1548 mg GAE/g) dan flavonoid (0,2830 mg QE/g) terbaik ada pada media dengan pemberian Asam Jasmonat 10ppm. Sedangkan pada antosianin dengan pemberian yang terbaik adalah Kitosan 50ppm (PC: 2,852 CV/g FW dan PP: 0,538 CV/ test tube). Varietas Black madras lebih cenderung dalam peningkatan biomassa dengan kandungan fenolik (0,1165 mg GAE/g) dan flavonoid (0,2107 mg QE/g) pada perlakuan kontrol meskipun dalam produksi antosianin cukup tinggi dengan Kitosan 50ppm (PC: 2,832 CV/g FW) dan Asam Salisilat 10ppm (PP: 0,440 CV/ test tube) lebih daripada perlakuan kontrol.
معنى المغايرة في واو العطف بين الأفعال التي لها دلالة على معنى واحد في التراكيب القرآنية_ دراسة تحليلية
Authors: صالح الجبوري باسم محمد 
Published: June 2024

تناول هذا البحث أثر معاني الأدوات في البناء الدلالي للتراكيب ، وقد أختص هذا البحث بمعنى المغايرة في واو العطف وبيان أثره في إيجاد ما أراده النص من دلالات ، ليكون عنوان البحث (( معنى المغايرة في واو العطف بين الأفعال التي لها دلالة على معنى واحد في التراكيب القرآنية_ دراسة تحليلية))، لينتظم هذا العمل في سبعةِ مباحثَ نببن في كل مبحث صورة من الصور الدلالية لهذا المعنى ، ثم عرضنا أهم النتائج بخاتمة مختصرة. وكان المنهج المناسب للوصول إلى هذه الدراسة هو المنهج التحليلي