bluuebunny/crossref_metadata_2025_split huggingface dataset:
Maximizing the decay of anti-plane shear waves in periodic pile barriers by topology optimization and its application in barrier design considering a moving load
Authors: Wang Xiao , Wan Shui 
Published: August 2023

Abstract

Mitigating ambient vibrations using periodic pile barriers has gained significant attention in the past decade. The width of the bandgap and the attenuation coefficient are two important factors that determine the vibration reduction capabilities of periodic pile barriers. In certain situations, significant vertical anti-plane vibrations may occur, such as those generated by subways. Therefore, the focus of this paper is to optimize the attenuation coefficients of anti-plane shear waves in periodic pile barriers. Firstly, a single-objective optimization framework is developed based on the Genetic Algorithm (GA) to maximize the attenuation coefficient of anti-plane shear waves in periodic pile barriers at a target frequency. The optimization considers the effects of the target frequency, elastic modulus of soil, and wave vector direction. A comparison between the optimized and traditional pile barriers is performed to demonstrate the superiority of the optimized design. Secondly, a multi-objective optimization framework is developed based on the non-dominated sorting genetic algorithm Ⅱ (NSGA-II) to investigate the relationship between the attenuation coefficient and the filling fraction, as well as the relationship between the attenuation coefficient and the bandgap width. The results indicate that a higher filling fraction result in a larger attenuation coefficient, while there is a trade-off between the filling ratio and the bandgap width. Thirdly, an optimization framework is established considering the effect of a moving load, and the coverage rate of the target frequency range is defined to design periodic pile barriers. Finally, numerical simulations are conducted to validate the effectiveness of periodic pile barriers in mitigating vibrations when a finite number of pile rows is used.
Simulation of canal water availability for Bari Doab in MODFLOW calibrated model
Authors: Basharat Muhammad , Jawad Muhammad 
Published: August 2023

Abstract
The climate in Pakistan gradually increases in severity in the north-south direction. But irrigation allowances are almost kept constant, particularly in Punjab. The results show that climate becomes more severe towards the tail of the BARI DOAB commands both during summer as well as winter. The average annual rainfall varies from 713 mm for Lahore in the northeast to 209 mm for Multan in Sidhnai command in the southwest; and the ETo difference is 177 mm between the two stations across spatial domain of the BARI DOAB commands. DTW increases in the downstream direction of Bari Doab i.e. why canal water was reallocated. The canal water availability was simulated for Bari Doab in MODFLOW calibrated model. Here, the possibility of climate change was simulated by increasing and decreasing groundwater recharge by 15 & 25 percent of existing average canal flows. Moreover, in another simulation canal water was reallocated i.e. distributed equally all over the Doab in a way that recharge from canal and rainfall remained equal. Then in another simulation groundwater pumping was assumed equal to calibrated model and distributed equally. Graphs were also developed for depth to watertable. Moreover, areas declared as non-perennial were recommended for perennial allocations.
The Mindfulness-Based Digital Wellbeing Retreat: An Interpretative Phenomenological Analysis
Authors: Thomas Justin , AlJuraib Nada , Ashour Layla , Karunavira Dh. 
Published: August 2023

Abstract

Concerns about the health impacts of online activities, such as gaming and social media, have led to the development of psychological interventions targeting problematic technology use. The efficacy of these interventions is typically assessed using quantitative metrics, such as decreased screentime and reductions in behavioural addiction or mood disorder symptomatology. However, few studies have examined participants’ subjective evaluations and perceptions of these interventions. This study explored the experiences of seven young adults who participated in a mindfulness-based digital wellbeing retreat. Semi-structured interviews, focusing on program experience and perceived impact, were subjected to interpretative phenomenological analysis. Participants described varied struggles with technology, suggesting the retreat represented a safe space to discuss such issues while exploring alternative ways of being with their digital devices. The experience was valued for providing a connection to a supportive peer group and the natural outdoor environment. Participants also described developing a heightened awareness of their tech-use idiosyncrasies and maladaptive habits, leading to usage characterised by greater intentionality and choice.
The genetic architecture of differentiating behavioural and emotional problems in early life
Authors: Askelund Adrian , Hegemann Laura , Allegrini Andrea , Corfield Elizabeth , Ask Helga , Davies Neil , Andreassen Ole , Havdahl Alexandra , Hannigan Laurie 
Published: August 2023

Abstract

Early in life, behavioural and cognitive traits associated with risk for developing a psychiatric condition are broad and undifferentiated. As children develop, these traits differentiate into characteristic clusters of symptoms and behaviours that ultimately form the basis of diagnostic categories. Understanding this differentiation process - in the context of genetic risk for psychiatric conditions, which is highly generalised - can improve early detection and treatment. We modelled the differentiation of behavioural and emotional problems from age 1.5-5 years (behavioural problems – emotional problems = differentiation score) in a pre-registered study of ~79 000 children from the population-based Norwegian Mother, Father, and Child Cohort Study. We used genomic structural equation modelling to identify genetic signal in differentiation and the total level of behavioural and emotional problems, investigating their links with 11 psychiatric and neurodevelopmental conditions. We examined associations of polygenic scores (PGS) with differentiation and total problems and assessed the relative contributions of direct and indirect genetic effects in over 33 000 family trios. Differentiation exhibited detectable common variant heritability (h2SNP= 0.023 [0.017, 0.029]), and was primarily genetically correlated with psychiatric conditions via a “neurodevelopmental” factor. PGS analyses revealed a substantial association between polygenic liability to ADHD and differentiation (β = 0.09 [0.08, 0.11]), and a weaker association with total problems (β = 0.05 [0.04, 0.06]). Trio-PGS analyses indicated predominantly direct genetic effects on both outcomes. We uncovered systematic genomic signal in the differentiation process, mostly related to common variants associated with neurodevelopmental conditions. Investigating the co-occurrence and differentiation of behavioural and emotional problems may enhance our ability to detect and eventually prevent the emergence of psychiatric conditions.
Anisotropy and deformation processes in Southern California from rotational observations
Authors: Tang Le , Igel Heiner , Montagner Jean-Paul 
Published: August 2023

Abstract

Seismic anisotropy in the upper mantle reveals geodynamic processes and the tectonic evolution of the Earth. The two most powerful methods, surface wave tomography, and shear-wave splitting observations, cannot investigate the deep local anisotropy with good vertical and lateral resolution, resulting in poor constraints on plate deformation processes of the complex plate boundary beneath the Southern California region. Here, we show that the amplitude ratio of translational displacement and rotation makes it possible to retrieve the local anisotropy in the upper mantle. Azimuthal anisotropy in the asthenosphere is well determined and resolved in lateral and vertical directions. The fast axis retrieved from the amplitude observation indicates the local rapid changes in plate deformation and complex pattern of mantle flow, which is compatible with the distributions of horizontal mantle flow illuminated by geodetic measurements, providing new insights on geodynamic processes of the Southern California region.
Comunidade Investigativa e Desenvolvimento Profissional de Professores
Authors: Mizukami Maria da Graça Nicoletti , Silva Marcia Tostes Costa da , Andrade Maria de Fátima Ramos de 
Published: August 2023

O objetivo deste artigo é analisar como professores de Educação Infantil de uma comunidade investigativa da rede pública traduzem a Base Nacional Comum Curricular da Educação Infantil (BNCC) em práticas pedagógicas. Trata-se de uma pesquisa[1]descritivo-analítica de natureza qualitativa. Como instrumentos de pesquisa foram utilizados: entrevista com roteiro semiestruturado, observação e análise de documentos. Participaram do estudo duas professoras e uma diretora da rede pública municipal de Educação Infantil de Barueri – SP. Por comunidade investigativa entende-se contextos nos quais professores constroem conhecimentos sobre as próprias práticas, dialogando com teorias. Os dados evidenciam a importância dos processos de construção da base de conhecimento para o ensino com especial destaque para o protagonismo de cada participante na construção de conhecimento pedagógico de conteúdo que materializa a BNCC. A pesquisa indica a importância da formação continuada no local de trabalho.

[1] A pesquisa foi submetida à plataforma Brasil, seguindo todos os procedimentos de sigilo, preenchimento e postagem de documentos exigidos pela plataforma, além do cuidado no trato com os participantes da pesquisa. O CAAE do projeto é CAAE é 18126919.4.0000.0084.
Perspectives and Experiences of Patients With Thyroid Cancer at a Global Level: Retrospective Descriptive Study of Twitter Data (Preprint)
Authors: Meksawasdichai Sununtha , Lerksuthirat Tassanee , Ongphiphadhanakul Boonsong , Sriphrapradang Chutintorn 
Published: August 2023

BACKGROUND

Twitter has become a popular platform for individuals to broadcast their daily experiences and opinions on a wide range of topics and emotions. Tweets from patients with cancer could offer insights into their needs. However, limited research has been conducted using Twitter data to understand the needs of patients with cancer despite the substantial amount of health-related data posted on the platform daily.

OBJECTIVE

This study aimed to uncover the potential of using Twitter data to understand the perspectives and experiences of patients with thyroid cancer at a global level.

METHODS

This retrospective descriptive study collected tweets relevant to thyroid cancer in 2020 using the Twitter scraping tool. Only English-language tweets were included, and data preprocessing was performed to remove irrelevant tweets, duplicates, and retweets. Both tweets and Twitter users were manually classified into various groups based on the content. Each tweet underwent sentiment analysis and was classified as either positive, neutral, or negative.

RESULTS

A total of 13,135 tweets related to thyroid cancer were analyzed. The authors of the tweets included patients with thyroid cancer (3225 tweets, 24.6%), patient’s families and friends (2449 tweets, 18.6%), medical journals and media (1733 tweets, 13.2%), health care professionals (1093 tweets, 8.3%), and medical health organizations (940 tweets, 7.2%), respectively. The most discussed topics related to living with cancer (3650 tweets, 27.8%), treatment (2891 tweets, 22%), diagnosis (1613 tweets, 12.3%), risk factors and prevention (1137 tweets, 8.7%), and research (953 tweets, 7.3%). An average of 36 tweets pertaining to thyroid cancer were posted daily. Notably, the release of a film addressing thyroid cancer and the public disclosure of a news reporter’s personal diagnosis of thyroid cancer resulted in a significant escalation in the volume of tweets. From the sentiment analysis, 53.5% (7025/13,135) of tweets were classified as neutral statements and 32.7% (4299/13,135) of tweets expressed negative emotions. Tweets from patients with thyroid cancer had the highest proportion of negative emotion (1385/3225 tweets, 42.9%), particularly when discussing symptoms.

CONCLUSIONS

This study provides new insights on using Twitter data as a valuable data source to understand the experiences of patients with thyroid cancer. Twitter may provide an opportunity to improve patient and physician engagement or apply as a potential research data source.
Mathematical Modeling of Hydrodynamic Cavitation as Low Energy Extraction Technique for Lipid Removal from Nannochloropsis sp.
Authors: Budiman Arief , Martomo Setyawan  , Panut Mulyono  , Sutijan  , Razif Harun  
Published: August 2023

Lipid extraction assisted by hydrodynamic cavitation (HCLE) is one of the promising processes with low energy requirements. This study aims to reduce the energy requirement using a discrete flow system and evaluate two models to calculate the volumetric mass transfer coefficient. The variations of the number of repetitions, cavitation number, microalgae concentration, and temperature have affected the energy requirement value. The first model uses total lipid mass transfer approximation (Model 1) and the second uses separated lipid mass transfer approximation (Model 2). Based on Model 1 the value of total volumetric mass transfer coefficient ( ) f were 1.166 x 10-2, 3.113 x 10-3 and 1.285 x 10-3 min-1 with coefficient of determination (R2) is 0.9797. Whereas, based on Model 2 the value of volumetric mass transfer coefficient from disrupted microalgae ( ) were 1.131 x 10-2, 2.925 x 10-3 and 1.260 x 10-3 min-1 and from the intact microalgae ( ) was 0.051, 0.030 and 0.011 1/min with R2 of 0.9766. Both models gave a similar result. It was shown that lipid release from disrupted microalgae was dominant compared to the intact microalgae. Therefore, the discrete flow system of HCLE is a promising technique for extracting lipids from microalgae
Ukhuwah Dalam Al-Qur’an (Studi Tafsir Tematik)
Authors: Hadari  
Published: August 2023

Kata ukhuwah sering digandengkan dengan kata islamiyah, sehingga memunculkan istilah ukhuwah islamiyah. Masyarakat muslim mengenal istilah Ukhuwah Islamiyyah. Selama ini ada kesan bahwa istilah tersebut bermakna “persaudaraan yang dijalin oleh sesama Muslim”, atau dengan kata lain, “persaudaraan antar sesama Muslim”, sehingga kata “Islamiyyah” dijadikan pelaku ukhuwah itu. Pemahaman ini kurang tepat karena kata Islamiyyah yang dirangkaikan dengan kata ukhuwah lebih tepat dipahami sebagai adjectiva (sifat), sehingga ukhuwah Islamiyah berarti persaudaraan yang bersifat Islami atau yang diajarkan oleh Islam, paling tidak ada dua alasannya. Pertama, al-Qur’an dan hadis memperkenalkan bermacam-macam per­saudara­­an. Kedua, karena alasan kebahasaan. Di dalam bahasa Arab, kata sifat selalu harus disesuaikan dengan yang disifatinya. Jika yang disifati berbentuk indefinitif (nakirah) maupun feminin (mu’annas\), kata sifatnya pun harus demikian. Ini terlihat secara jelas pada prase ukhuwwah Islamiyyah dan al-Ukhuwwah al-Islamiyyah. Metode penelitian ini menggunakan metode penelitian kualitatif. Jenis penelitian ini penelitian kepustakaan (library research) dengan pendekatan yang digunakan adalah pendekatan ilmu tafsir. Teknik pengumpulan data penelitian ini adalah penelaahan dan pengkajian bahan-bahan pustaka (library research) dengan langkah-langkahnya adalah menetapkan masalah dan tujuan penelitian mengenai ayat-ayat ukhuwah dalam Al-Qur’an, mengumpulkan data mengenai konsep ukhuwah dalam Al-Qur’an. Pengolahan data melalui tiga tahap yakni menganalisis, memaparkan, dan merumuskan penafsiran ayat-ayat ukhuwah, dianalisis secara kuali­tatif kemudian menarik kesimpulan.
Gewalt statt Liebe – Liebe statt Gewalt. Eine Rehabilitierung des ödipalen Liebesmodells
Authors: Boothe Brigitte 
Published: August 2023

Maligne Elternschaft wird dem mythischen Ödipus zum Verhängnis. Kindliches Liebesverlangen bestimmt dagegen das psychoanalytische Ödipus-Narrativ. Es geht es um Wünsche und Angstvorstellungen sowie beziehungsdynamische Erfahrungen kindlichen Ursprungs, die sich auf Liebe, Intimität und Privilegierung richten und bedeutenden Einfluss auf die Persönlichkeitsbildung ausüben. Die ödipale Beziehungsdynamik, hier illustriert anhand von Beispielen aus dem Briefwechsel der Verlobten Martha Bernays und Sigmund Freud, verbindet Ernst und Spiel, Progression und Regression: Die Beteiligten können miteinander und füreinander diesseits und jenseits des Erotischen und Sexuellen in leiblicher und sprachlicher Kommunikation alle Freuden der Regression – Hingabe und Preisgabe – geniessen, Sorge für den anderen tragen sowie dessen Freiheit und Selbstbestimmung respektieren.
Development and Performance Evaluation of a Small Scale Kenaf Fibre Spinning and Reeling Machine
Authors: Adekunle Atta , Oseni Owolarafe 
Published: August 2023

Abstract
A developed small scale kenaf spinning and reeling machine was evaluated in this study. The machine uses the principle of the ring spinning technique to produce spun kenaf-yarn (single or double-ply). The machine component includes two 0.5 kW electric motors positioned on a 640×433×10 mm mild steel frame (with speeds of the electric motors controlled by 0.5 kW variable frequency drives), twisting spindle, inlet frustum, feed roller shaft, reeling and spinning shafts, bearings, and a bevel gear. The machine was evaluated using different spinning speeds (90, 100 and 110 rpm), reeling speeds (60, 70 and 80 rpm) and a kenaf sample (Ifeken DI 400). At the spinning and reeling speeds combination of 90 and 80 rev·min−1, the developed machine was able to produce a continuous length of kenaf yarn twisted at 95.5 turns per minute with a production speed of 0.94 m·min−1 at the highest efficiency (88.9%) of the machine. The level of twist of the spun yarn spun provides information on the required twist level for kenaf fibre as deviation from this value was discovered to cause deformation on the spun yarn. This machine was able to reduce the drudgery involved in the production of spun kenaf-yarn and the technology is expected to positively influence kenaf’s growth and utilization in Nigeria.
Respon Pemberian Jenis Zpt Dan Lama Perendaman Yang Berbeda Terhadap Pertumbuhan Stek Batang Tanaman Anggur (Vitis vinifera L.)
Authors: Firgiyanto Refa , Arbi Juliantoro Isyrafil 
Published: August 2023

Pembentukan akar (adventif) dan tunas serta masa dormansi yang lambat merupakan faktor penghambat keberhasilan pelaksanaan stek pada tanaman anggur. Meningkatkan pertumbuhan akar dan tunas yang lambat serta mempercepat masa dormansi tanaman adalah upaya untuk mengatasi hal tersebut. Tujuan penelitian ini adalah untuk mengetahui respon pertumbuhan stek batang tanaman anggur (Vitis vinifera L.) terhadap lama perendaman pada beberapa jenis ZPT. Penelitian ini dilaksanakan selama 3 bulan pada bulan Januari sampai bulan April 2021, bertempat di halaman rumah Desa Jurangsapi, Kecamatan Tapen, Kabupaten Bondowoso, Jawa Timur pada ketinggian 226 meter di atas permukaan laut. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) Faktorial dengan faktor pertama adalah jenis ZPT (Z), sebanyak 3 level, yaitu: Z1: Rootone-F 300 mg/liter air, Z2: ekstrak bawang merah 800 ml/liter air, Z3: ekstrak tauge 300 ml/liter air, dan faktor kedua adalah lama perendaman (L) sebanyak 3 level, yaitu: L1: 0,25 jam, L2: 6 jam, L3: 12 jam. Hasil penelitian menunjukkan bahwa faktor tunggal jenis ZPT berpengaruh terhadap peningkatan panjang tunas (8,10, dan 12 MST), diameter tunas (6 MST), dan jumlah daun (10 dan 12 MST) tanaman anggur dengan ZPT terbaik Rootone-F. Lama perendaman memiliki pengaruh yang nyata terhadap persentase keberhasilan tumbuh tanaman dengan perlakuan terbaik lama perendaman 6 jam. Sedangkan interaksi antar perlakuan jenis ZPT dan lama perendaman berpengaruh nyata terhadap panjang tunas (6,8,10, dan 12 MST), jumlah daun (4, 8,10, dan 12 MST), dan bobot basah tajuk stek batang anggur dengan perlakuan terbaik ZPT Rootone-F serta lama perendaman 0,25 jam.

Kata kunci : auksin; lama perendaman; stek batang; Vitis vinifera L. var. prabu bestari.
Sumber Kerentanan Ekonomi Petani Kopi Di Hulu DAS Lampung
Authors: Fitriani Fitriani , Kuswadi Didik 
Published: August 2023

Penguatan ketangguhan rumahtangga petani menghadapi risiko ketidakberlanjutan melalui peningkatan kemampuan daya adaptasi dan mitigasi kondisi yang sulit perlu terus dilakukan. Sumber-sumber potensi kerentanan ekonomi rumahatangga petani menjadi informasi awal untuk landasan penanggulan risiko usaha. Kemampuan menemukenali sumber potensi kerentanan ekonomi akan menjadi stimulus upaya peningkatan produktivitas, pendapatan, dan pertumbuhan ekonomi perdesaan. Penelitian ini fokus bertujuan untuk menggali sumber-sumber potensi kerentanan ekonomi rumahtangga petani kopi di hulu DAS Lampung. Penelitian survey dilakukan pada daerah sentra produksi kopi di tiga kecamatan yang berada dalam wilayah tangkapan air DAS Way Besai Lampung Barat, yaitu Kecamatan Air Hitam, Way Tenong, dan Sumber Jaya. Melibatkan jumlah responden 165 petani kopi aktif. Metode analisis data menggunakan pendekatan statistik non-parametrik dengan model multinomial regression. Hasil penelitian menunjukkan bahwa sumber potensi kerentanan ekonomi petani di hulu DAS sangat terkait erat dengan kepemilikan dan luasan asset lahan yang dimiliki. Asset lahan menjadi sumber utama penerimaan rumahtangga petani, alokasi tenaga kerja, dan pengeluaran rumahtangga baik pangan maupun non pangan, termasuk untuk keperluan tabungan dan investasi. Faktor-faktor penting ini menjadi entry point dalam upaya membangun resilisensi rumahtangga petani yang tangguh. Resiliensi rumahtangga menjadi modal dasar dalam pencapaian produksi berkelanjutan.