bluuebunny/crossref_metadata_2025_split huggingface dataset:
Integration of green nanotechnology with silica for corrosion inhibition
Authors: Govardhane Sharayu , Shende Pravin 
Published: April 2021

Abstract
Silica is a chemically inert molecule with an ability of adsorption on the metal to form a layer of barrier for preventing it from the atmospheric damage. However, a larger amount of silica is required for producing the impactful anticorrosive activity, leading to toxic and carcinogenic effects in the environment, and thus limiting the applications of silica. Application of nanotechnology in the synthesis of silica nanocomposites provides, for example, the advantages of better biocompatibility, systemic stability, ineffective response towards pH changes large multifunctionality. However, uses of harmful solvent, low penetration and toxicity, remain the major concerns for silica nanoparticles. Synthesis of silica nanocomposites with green technology will be an attractive approach to offer reduction in toxicity associated with the silica, higher surface area, effective penetration, easy spreadability, better adsorption over the metal surface and also provided the controlled release of chemical agents on contact with metal surface. The present article enlightens the use of green syntheses in the formulation of silica nanocomposites for corrosion inhibition in comparison to conventional synthetic method and provides the insights of various green nanocarriers such as nanocontainers, sol-to-gel nanoparticles, metallic nanostructures and silica nanocomposites for enhancing the proficiency of corrosion inhibition.
Experimental Investigation of Skirted Foundation in Sand Subjected to Rapid Uplift
Authors: Kulczykowski Marek 
Published: April 2021

Abstract
This paper reports results from 1g model tests carried out under single gravity on a skirted foundation installed in sand and subjected to a rapid uplifting force. The effects of displacement rates ranging from 5 mm/s to 450 mm/s on the ultimate capacity, suction pressure inside the skirt compartment, and time of extraction were investigated. Test results indicate that the displacement rate significantly affected the magnitude of uplift resistance, as well as the magnitude of suction under the foundation lid, but had little effect on the relationship between stress and the displacement of the foundation. The shapes of the uplift capacity-displacement curve and the suction-displacement curve were similar for all experimental displacement rates.
Compound Channel’s Cross-section Shape Effects on the Kinetic Energy and Momentum Correction Coefficients
Authors: Ghanbari-Adivi Elham 
Published: April 2021

Abstract
Since accurate estimation of the flow kinetic energy (α) and momentum (β) is not easily possible in compound channels, determining their accurate correction coefficients is an important task. This paper has used the “flood channel facility (FCF)” data and the “conveyance estimate system (CES)” model (which is 1D, but considers a term related to the secondary flow) to study how the floodplain width and the main channel wall slope and asymmetry affect the values of α and β. Results have shown that their maximum values at the highest floodplain width are, respectively, 1.36 and 1.13 times of those at the lowest case; an increase in the slope increased their maximum values by 1.05 and 1.01 times, respectively. The mean of error values showed that the CES model estimated the values α and β more accurately than the flow discharge. The maximum differences between the estimated and experimental values were 12.14% for α and 4.3% for β; for the flow discharge, it was 24.4%.
Performance comparison of code division multiple access and orthogonal frequency division multiplexing over turbulent effected free space optics link under the impact of advance coding formats
Authors: Arora Heena , Sharma Vishal 
Published: April 2021

Abstract
Free space optics (FSO) systems have gained considerable attention because of their numerous features and services. It has evolved into a promising technology for high data rate transmission in wireless communication systems. However, there are some atmospheric effects which inhibit its performance. In this paper, performance of code division multiple access–free space optics (CDMA–FSO) by combining multidiagonal (MD) codes and orthogonal frequency division multiplexing–free space optics (OFDM-FSO) systems over using advance line coding formats under the sway of turbulence conditions are investigated and compared. A comparative study has shown that CDMA–FSO offers better SNR with both CSRZ and AMI coding format under diverse conditions at data rate 15 and 20 Gbps.
Wind flow around buildings of basic shapes with and without a wind-adaptive envelope
Authors: Kabošová Lenka , Kmeť Stanislav , Katunský Dušan 
Published: April 2021

Abstract
Together with the natural environment, the built, artificial environment represents a barrier to the wind fluxes. Especially in the densely built cities, the wind flow pattern and the wind speed are considerably altered by buildings, which can lead to zones of an accelerated wind and turbulent flow. Incorporating the wind into the early conceptual stage of architectural design, this reciprocal interaction of the built environment and the wind fluxes can be analyzed and controlled to create zones of calmer wind around buildings. Presently, building envelopes are designed to withstand extreme load cases, which, however, demands thicker and bulkier structures. The subject of this study is a proposal and investigation of a lightweight, adaptive building envelope, which is able of a local, passive morphing in the wind. This local shape change leads to creating a textured, dimpled building surface; the final shape depends on the wind direction and force. The wind-induced dimpled surface influences the wind flow around the building, as well as surface wind pressure acting on the building, and the drag force. The analysis of three fundamental building shapes using the CFD (Computational Fluid Dynamics) simulation is performed for the variants with and without the proposed adaptive envelope. Concluding from the wind simulations, the wind flow can be decelerated, the turbulence reduced, and calmer zones around buildings can be created, by certain conditions. Moreover, the envelope, morphing with the instant wind force, can contribute to the reduction of the surface wind suction on buildings. Strikingly, the dimpled geometry of the wind-adaptive envelope can decrease the wind drag force by up to 28.4 %, which is again dependent on the global form, as well as the initial wind speed.
An experimental study on damaged cementitious mortars repaired by glass/epoxy composite materials
Authors: Aribi Chouaib , Bouaissi Aissa , Safi Brahim , Saidi Mohammed 
Published: April 2021

Abstract
This paper presents an experimental investigation on the post-repair flexural response of mortars with and without damage. In order to improve the mechanical properties of the damaged mortars, which were subjected to different loads ranging between 40 % and 90 %, the mortars specimens were reinforced and repaired using two different composite materials, the first with only epoxy resin, while the second consisted of a mixture of epoxy resin and glass fiber. The results show a significant improvement in the stiffness damaged. Therefore, the reinforced specimens by a layer of resin on the lower side surface increased the bending strength by 58 %, when compared to those control samples. The reinforcement using composite resin-fiber of glass exhibited considerable increases in the safety of constructions. The SEM images of damaged samples with and without repair, revealed the impact of reinforced glass fibers-mortar on the matrix-mortar by improving theirs mechanical performances.
Long noncoding RNA DLEU2 drives the malignant behaviors of thyroid cancer through mediating the miR-205-5p/TNFAIP8 axis
Authors: Yang Jiwen , Huang Yayin , Dong Bohan , Dai Yunhai 
Published: April 2021

Objective
Considering the plight in thyroid cancer therapy, we aimed to find novel therapeutic targets from a molecular perspective.

Methods
Quantitative real-time PCR (qRT-PCR) and Western blot assay were carried out to determine RNA and protein expression. Cell counting kit-8 (CCK8) assay, flow cytometry, transwell migration assay and aerobic glycolysis analysis were performed to analyze cell proliferation, apoptosis, migration and aerobic glycolysis of thyroid cancer cells. MiRcode and Starbase software were used to search the downstream genes of long noncoding RNA (lncRNA) deleted in lymphocytic leukemia 2 (DLEU2) and microRNA-205-5p (miR-205-5p), and the intermolecular combination was confirmed by dual-luciferase reporter assay. The in vivo role of DLEU2 in tumor growth was verified using the murine xenograft model.

Results
DLEU2 and tumor necrosis factor-α-induced protein 8 (TNFAIP8) were highly expressed in thyroid cancer tissues and cell lines. DLEU2 and TNRAIP8 promoted the proliferation, migration and aerobic glycolysis and restrained the apoptosis of thyroid cancer cells. DLEU2/miR-205-5p/TNFAIP8 signaling axis was identified in thyroid cancer cells. TNFAIP8 overexpression largely rescued the malignant phenotypes in DLEU2-silenced thyroid cancer cells. DLEU2 positively regulated TNFAIP8 expression by acting as miR-205-5p sponge in thyroid cancer cells. DLEU2 silencing blocked the growth of xenograft tumors in vivo.

Conclusion
lncRNA DLEU2 exerted a pro-tumor role to promote proliferation, migration and aerobic glycolysis while repressing the apoptosis of thyroid cancer cells via miR-205-5p/TNFAIP8 axis.
Novel insights in cell cycle dysregulation during prostate cancer progression
Authors: Ben-Salem Salma , Balaji Venkadakrishnan Varadha 
Published: April 2021

Abstract
Prostate cancer (CaP) remains the second leading cause of cancer deaths in Western men. These deaths occur because metastatic CaP acquires resistance to available treatments. The novel and functionally diverse treatment options that have been introduced in the clinic over the past decade each eventually induce resistance for which the molecular basis is diverse. Both initiation and progression of CaP have been associated with enhanced cell proliferation and cell cycle dysregulation. A better understanding of the specific pro-proliferative molecular shifts that control cell division and proliferation during CaP progression may ultimately overcome treatment resistance. Here, we examine literature for support of this possibility. We start by reviewing recently renewed insights in prostate cell types and their proliferative and oncogenic potential. We then provide an overview of the basic knowledge on the molecular machinery in charge of cell cycle progression and its regulation by well-recognized drivers of CaP progression such as androgen receptor and retinoblastoma protein. In this respect, we pay particular attention to interactions and reciprocal interplay between cell cycle regulators and androgen receptor. Somatic alterations that impact the cell cycle-associated and -regulated genes encoding p53, PTEN and MYC during progression from treatment-naïve, to castration-recurrent, and in some cases, neuroendocrine CaP are discussed. We considered also non-genomic events that impact cell cycle determinants, including transcriptional, epigenetic and micro-environmental switches that occur during CaP progression. Finally, we evaluate the therapeutic potential of cell cycle regulators and address challenges and limitations in the approaches modulating their action for CaP treatment.
DEVELOPMENT OF SCIENCE TEST TO MEASURE HOTS AND DIGITAL LITERACY OF JUNIOR HIGH SCHOOL STUDENTS ON THE TOPIC OF CITY NOISE
Authors: Nurwahidah Indri , Widiyawati Yeni , Sari Dwi Septiana , Masykuri Mohammad , Budiyanto Cucuk Wawan 
Published: April 2021

PENGEMBANGAN SCIENCE TEST UNTUK MENGUKUR HOTS DAN DIGITAL LITERACY SISWA SMP PADA TEMA KEBISINGAN KOTA AbstractThe 2013 Curriculum emphasizes the process to improve HOTS and digital literacy. However, no appropriate science test instrument can measure the combination of these two aspects in contextual topics and relate to real-world problems. This kind of science test will engage students in-depth thinking as well as improve their digital literacy. This research aims to develop science tests based on HOTS and digital literacy in the City Noise theme for 8th-grade students. HOTS is operationally defined as critical thinking, creativity, collaboration, and communication (4C), while digital literacy is a thinking and operation skill. Borg & Gall models were adopted in this research and development. A total of 21 private school students in Semarang were subject to this research and investigated the validity and reliability of developed science tests. Based on expert judgment, the science test instrument, which consists of 25 multiple choice items and five essay items, was in a very good category. Based on the Rasch model analysis, the science tests are valid (28 items are valid) and reliable (Alpha cronbach=0.79). It can be concluded that the developed science test is feasible to use to measure HOTS and digital literacy of junior high school students on the topic of the City Noise.AbstrakKurikulum 2013 menekankan pada proses peningkatan HOTS dan digital literacy. Namun, belum banyak tersedia instrumen tes sains yang mampu mengukur kombinasi dari kedua aspek tersebut dalam topik yang kontekstual dan berhubungan dengan masalah nyata. Jenis science test seperti ini dapat melibatkan siswa dalam proses berpikir mendalam serta dapat meningkatkan digital literacy. Tujuan dari penelitian ini yaitu mengembangkan science test berbasis HOTS dan digital literacy pada tema Kebisingan Kota untuk siswa kelas 8. HOTS secara operasional didefinisikan sebagai critical thinking, creativity, collaboration and communication (4C) sementara digital literacy sebagai thinking skills dan operation skills. Penelitian ini merupakan penelitian pengembangan (R&D) yang mengadaptasi dari Borg & Gall. Sebanyak 21 siswa dari SMP swasta di Semarang digunakan sebagai subjek dalam penelitian ini dan digunakan untuk mengetahui validitas dan reliabilitas science test hasil pengembangan. Berdasarkan hasil validasi ahli, instrumen science test yang terdiri dari 25 item pilihan ganda dan 5 item uraian termasuk dalam kategori baik. berdasarkan hasil analisis Rasch model, science test dikatakan valid (28 item valid) dan reliabel (Alpha Cronbach=0,79). Dengan demikian dapat disimpulkan bahwa science test hasil pengembangan layak digunakan untuk mengukur HOTS dan digital literacy siswa SMP pada tema Kebisingan Kota.
HUBUNGAN ANTARA SELF REGULATED LEARNING DENGAN PROKRASTINASI AKADEMIK PADA MAHASISWA PENDIDIKAN KIMIA DI MASA PANDEMI COVID-19
Authors: Rizkyani Arivia Monique , Feronika Tonih , Saridewi Nanda 
Published: April 2021

RELATIONSHIP BETWEEN SELF REGULATED LEARNING AND ACADEMIC PROCRASTINATION IN CHEMISTRY EDUCATION STUDENTS IN THE COVID-19 PANDEMIC AbstractThe world, including Indonesia, is being hit by the covid-19 outbreak, making students adapt to a new learning process, namely online. Students need self-regulated learning to direct the learning process to achieve optimal learning goals and suppress the level of academic procrastination experienced by students during the covid-19 pandemic. This study aims to determine the relationship between self-regulated learning and academic procrastination in Chemistry Education students during the covid-19 pandemic. This study uses a correlational method with a quantitative research approach. This study's population was 210 students of Chemistry Education class 2017, 2018, and 2019 with a sample size of 68 students who were determined using the proportional stratified random sampling technique. The instruments used were self-regulated learning questionnaires, academic procrastination questionnaires, and interviews. The product-moment correlation technique is used to test the hypothesis. The results obtained a correlation coefficient value of -0.409 with a significance of 0.001, so it can be said that there is a negative and significant relationship between self-regulated learning and academic procrastination in Chemistry Education students during the covid-19 pandemic. Abstrak Saat ini dunia termasuk Indonesia sedang dilanda wabah covid-19 yang membuat mahasiswa harus beradaptasi dengan proses pembelajaran baru yakni melalui daring. Mahasiswa membutuhkan kemampuan self regulated learning untuk mengarahkan proses belajar dalam mencapai tujuan pembelajaran yang optimal serta untuk menekan tingkat prokrastinasi akademik yang dialami mahasiswa pada masa pandemi covid-19. Penelitian ini. bertujuan untuk. mengetahui. hubungan antara. self regulated.learning dengan. Prokrastinasi. akademik pada mahasiswa. Pendidikan Kimia di.masa pandemi covid-19. Penelitian ini menggunakan metode korelasional dengan pendekatan penelitian kuantitatif. Populasi penelitian ini adalah mahasiswa Pendidikan Kimia angkatan 2017, 2018, dan 2019 berjumlah 210 mahasiswa dengan jumlah sampel sebanyak 68 mahasiswa yang ditentukan menggunakan teknik proportional stratified random sampling. Instrumen yang digunakan berupa angket self regulated learning, angket prokrastinasi akademik, dan wawancara. Teknik korelasi product moment digunakan untuk menguji hipotesis. Hasil penelitian diperoleh nilai .koefisien korelasi sebesar. – 0,409 dengan. signifikansi 0,001 sehingga.dapat dikatakan bahwa terdapat hubungan.negatif dan signifikan.antara self. regulated. learning dengan prokrastinasi akademik pada. mahasiswa Pendidikan Kimia di.masa pandemi covid-19.
Three-dimensional printing of tactile sensors for soft robotics
Authors: Zhou Xinran , Lee Pooi See 
Published: April 2021

AbstractThree-dimensional (3D) printing has become an important fabrication method for soft robotics, due to its ability to make complex 3D structures from computer designs in simple steps and multimaterial co-deposition ability. In this article, the application of 3D printing techniques in the fabrication of four types of tactile sensors commonly used in soft robotics, including the piezoresistive tactile sensor, capacitive tactile sensor, piezoelectric tactile sensor, and triboelectric tactile sensor, will be discussed. The 3D printing mechanism, material, and structure for each type of sensor will be introduced, and the perspectives on the future potential of 3D printable tactile sensors will be discussed.
Fabrication of circuits by multi-nozzle electrohydrodynamic inkjet printing for soft wearable electronics
Authors: Khan Arshad , Rahman Khalid , Ali Shawkat , Khan Saleem , Wang Bo , Bermak Amine 
Published: April 2021

AbstractWearable electronic devices are evolving from current rigid configurations to flexible and ultimately stretchable structures. These emerging systems require soft circuits for connecting the various working units of the overall system. This paper presents fabrication of soft circuits by electrohydrodynamic (EHD) inkjet-printing technique. Multi-nozzle EHD printing head is employed for rapid fabrication of electric circuits on a wide set of materials, including glass substrate (rigid), flexible polyethylene terephthalate (PET) films, and stretchable thermoplastic polyurethane (TPU) films. To avoid the effects of substrate materials on the jettability, the proposed multi-nozzle head is equipped with integrated individual counter electrodes (electrodes are placed above the printing substrate). High-resolution circuits (50 ± 5 µm) with high electrical conductivity (0.6 Ω □−1) on soft substrate materials validate our well-controlled multi-nozzle EHD printing approach. The produced circuits showed excellent flexibility (bending radius ≈ 5 mm radius), high stretchability (strain ≈ 100%), and long-term mechanical stability (500 cycles at 30% strain). The concept is further demonstrated with a soft strain sensor based on a multi-nozzle EHD-printed circuit, employed for monitoring the human motion (finger bending), indicating the potential applications of these circuits in soft wearable electronic devices.Graphic Abstract
Kesesuaian Pasal 108 KHI Tentang Wasiat Perwalian Anak Kepada Badan Hukum dengan Hukum Islam
Authors: Chubba Mochammad Charitsal 
Published: April 2021

This is a bibliographical research that analyzes the appropriateness of article 108 of KHI (Islamic Law Compilation) concerning child trusteeship testament to legal entities with testamentary theories in Islamic law. In term of its formulation, it is known that article 108 of KHI does not have a basis and it contradicts the rules of Islamic law that exist according to the Shafi'i school of thought. In this case, there are two elements that are not in accordance with the rules of will in Islamic law, namely legal entities as recipient of will and guardianship as inherited object. It is because the legal entities are not individual recipient but an association consisting of several people who are not associated to religion and culture. In addition, the article is only based on a number of articles contained in the Civil Code and other laws, without detailed explanations regarding the articles and procedures that must be carried out and across the norms in the community. The solution that can be taken is the need for regulations regarding the criteria of legal entities that are permitted to accept the will and their responsibilities. And there should be a change from the word trusteeship to a representative that has a limited role compared to guardianship.
Analisis Kritis Terhadap Fikih Perceraian Responsif Gender: Studi Penerapan Kaidah Maqasid al-Syari'ah
Authors: Rohman Holilur 
Published: April 2021

This study discusses the application of maqasid al-shar'ah principles in the gender-responsive marriage Jurisprudence. The focus of this research is: how the principles of maqasid al-shar'ah could be used as a foundation and approach of Ijtihad? How is the application of maqasid al-shar'ah principles in the issue of gender-responsive marriage Jurisprudence? This research is a qualitative research, which is in the form of descriptive-analytical library research. The approach used is the philosophical approach. In this study it was found that there are four rules of maqasid al-shar'ah which are used as the basis for jihad. These norms was then applied in a gender-responsive divorce Jurisprudence. This research concludes, that the holder of divorce rights is male, but the divorce can be pronounced based on the court's decision so that the results are more objective. In addition, divorce must be done for certain reasons, such as the cause of a constant dispute that cannot be resolved. Therefore, divorce without cause and without dialogue with his wife, is prohibited because it gives the effect of harm especially to his wife and children.