bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Impact of Problem Based Learning Model for the Result of Social Subject Grade VIII in SMP Cinta Rakyat 3 Pematang Siantar Year 2022/2023
Authors: Destiana br Panjaitan  , Tumpal Manahara Siahaan  , Anton Luvi Siahaan  
Published: December 2023

The problem in this research is the low economic learning outcomes of students in the learning process. This research aims to determine the effect of the problem based learning model on the social studies learning outcomes of class VIII students at Cinta Rakyat 3 Private Middle School Pematang Siantar FY 2022/2023.
The research used a quasi-experimental method with a Noneqivalent Control Group Design. This design consists of two stages, namely pretest and posttest. The sample in the research in class VIII-C was 32 students and VIII-D was 32 students. The research instrument used was the learning outcomes test. From the results of the analysis carried out in the experimental class, the average pretest score was 47.34 and posttest was 73.91. Meanwhile, in the control class the average pretest score was 38.59 and the average posttest score was 53.12. The results of hypothesis testing using the independent sample t-test obtained tcount 4.706 > ttable 1.295 and the significance was 0.000 <0.005 so it can be concluded that the learning outcomes of students taught using the problem based learning model are influential and good for use in learning.
PENGUATAN KEBIJAKAN ZAKAT PROFESI:ANALISIS INDEKS PERSEPSI PEGAWAI NEGERI SIPIL KEMENTERIAN AGAMA KABUPATEN SIDENRENG RAPPANG
Authors: Andriyani Reni Andriyani 
Published: December 2023

Zakat profesi merupakan salah satu jenis zakat mal dan menjadi salah satu sumber zakat yang sangat potensial dalam membangun perekonomian umat. Pelaksanaan pembayaran zakat profesi oleh Pegawai Negeri Sipil Kementerian Agama Islam masih belum maksimal dapat dilihat pada tingkat persentase zakat profesi yang dapat ditarik hanya sebesar 25,66%.
Tujuan penelitian ini adalah untuk mengetahui indeks persepsi zakat profesi Pegawai Negeri Sipil (PNS) Kementerian Agama (Kemenag) Kabupaten Sidenreng Rappang (Sidrap) dan merumuskan penguatan kebijakan pengelolaan zakat profesi. Metode penelitian ini menggunakan pendekatan kuantitatif deskriptif. Data diperoleh menggunakan angket dan data diolah dilakukan dengan bantuan aplikasi SPPS for Windows versi 22.0 yaitu dengan pengolahan data analisis desktiptif, Instrumen penelitian dibuat berdasarkan skala Likert yang dibuat berdasarkan indikator variable persepsi yaitu Sikap, Motif, Kepentingan, Pengalaman Masa Lalu dan Pengharapan yang dikembangkan sendiri. Jumlah responden sebanyak 137 orang. Hasil penelitian menunjukkan indeks persepsi pembayaran zakat profesi PNS Kementerian Agama Kabupaten Sidrap diketahui sebesar 69.197% atau termasuk kategori tinggi. Temuan ini menjadi dasar melakukan penguatan kebijakan pembayaran zakat profesi bagi PNS di Kementerian Agama Kabupaten Sidenreng Rappang. Penguatan yang dimaksud melalui Surat Edaran yang mengatur kewajiban pembayaran zakat profesi dan pembuatan Kartu Induk Zakat Profesi (KIZi).
Kata Kunci: Penguatan Kebijakan, Zakat Profesi, Indeks Persepsi.
Application of Bayesian Vector Autoregressive Models in the Analysis of Quasi Money and Money Supply: A Case Study of Nigeria
Authors: Israel Timothy Olaniyi Morounfolu , Kingdom Nwuju, , Yvonne Da-wariboko Asikiye , Ike Wegbom Anthony 
Published: December 2023

Aims: The aim of this study is to model the relationship between Nigerian quasi money and money supply using the Bayesian Vector Autoregressive (BVAR) model.
Study design: The study collected and analyzed monthly data from the Central Bank of Nigeria (CBN) money and credit statistics over an 8-year period (November 2015 to December 2022). The analysis utilized both Vector Autoregressive (VAR) Model and BVAR model to examine the dynamics between these variables and their implications for monetary policy.
Methodology: The study employed the Bayesian Vector Autoregressive (BVAR) model to analyze the relationship between Nigerian quasi money and money supply. Monthly data from the Central Bank of Nigeria (CBN) over an 8-year period was collected and subjected to both Vector Autoregressive (VAR) Model and BVAR model for analysis.
Results: The findings indicated that there is no long-run relationship between Nigerian narrow money and quasi money, but quasi money does granger cause changes in narrow money, and vice versa. This suggests a multi-directional effect between the two variables. The BVAR model consistently outperformed the VAR model in terms of higher Adjusted-R² values, indicating its stronger ability to explain the variance in the data. The BVAR model provided a more robust and accurate representation of the relationship between these variables. The model exhibited stability and the absence of heteroscedasticity in the residuals, indicating a stable relationship between the variables. The impulse response function showed an immediate impact of changes in narrow money on the overall money supply in Nigeria.
Conclusion: This study contributes to existing knowledge by empirically examining the relationship between Nigerian narrow money and quasi money and also concluded that there existed no co-integrating relationship between narrow money and quasi money, which has important implications for effective monetary policy strategies, particularly in Nigeria.
Isolation, Characterisation and Corrosion Inhibition Evaluation of 1, 3, 5-Trimethoxymethyl benzene from Seeds Extract of Cola nitida on Mild Steel Surface in Hyhrochloric Acid Solution
Authors: Obodom Mboso I. , Abakedi Okon U. , Akpan Inemesit A. 
Published: December 2023

Corrosion inhibition of Mild steel in 1 M hydrochloric acid solution by 1, 3, 5-trimethoxymethylbenzene (TMMB) isolated from seeds extract of Cola nitida was studied using weight loss, potentiodynamic polarization and electrochemical impedance spectroscopic methods. TMMB was isolated from seeds of C. nitida by 72 hours maceration of the chopped seeds with dichloromethane. Filtered and concentrated extract was subjected to a combination of vacuum liquid, column and thin layer chromatographic techniques. The isolated compound was characterized using Fourier Transform Infra-Red (FT-IR) spectrophotometer, proton nuclear magnetic resonance (+H-NMR), C13 – NMR and DEPT-135 NMR spectrophotmeters. The results showed that the inhibition efficiency recorded by the weight loss method increased with the increase in TMMB concentration, but decreased with increasing temperature. The inhibition efficiencies recorded by the potentiodynamic polarization and electrochemical impedance spectroscopic methods also increased with increase in the concentration of TMMB. The calculated thermodynamic parameters showed that the corrosion inhibition process was endothermic and spontaneous in nature. Potentiodynamic polarization measurements confirmed that TMMB worked as a mixed – type inhibitor considering the value of Ecorrbeing less than 85 mV. Impedance measurement revealed that the charge transfer resistance offered by TMMB to the migration of aggressive ions on the surface of mild steel in acidic solution was enough to impede corrosion. The best line of fit to the adsorption of TMMB onto mild steel surface was found in Temkin isotherm. Formation of protective dense film on the steel surface in the presence of TMMB compared to the blank was revealed by scanning electron microscopy. The molecular structure of TMMB was optimized using Gausian 09 with density functional theory [DFT/B3LYP/6-31G (d,p)]. Physical adsorption has been proposed for the adsorption of TMMB onto mild steel surface.
Crack‐Free Tungsten Fabricated via Laser Powder Bed Fusion Additive Manufacturing
Authors: Ramakrishnan Tejas , Kumar Amit , Kumar Tumulu S. , Kwon Sunyong , Muniz‐Lerma Jose A. , Gauvin Raynald , Brochu Mathieu 
Published: December 2023

AbstractAdditive manufacturing of tungsten (W) is challenging due to its high melting point, high thermal conductivity, oxidation tendency, and brittleness from grain boundary (GB) oxides. In this study, the processing of W through laser powder bed fusion is investigated. Parts are fabricated under argon (Ar) and nitrogen (N2) atmospheres using the same processing parameters. The part produced in Ar has cracks with oxide precipitates decorating the fractured GBs. On the other hand, crack‐free W samples are produced under N2 atmosphere without any additional process modification. In both cases, the oxygen (O) content in the LPBF samples is similar to the starting powder. Interestingly, the analysis of the samples fabricated in nitrogen suggests that nitrogen is retained beyond the equilibrium solid solubility limit, while high‐resolution electron micrographs of fractured surfaces reveal reduced levels of oxides at GBs. Increased hardness for samples processed under N2 atmosphere is observed. Density Functional Theory (DFT) calculations performed to study the influence of interstitial nitrogen on oxygen diffusion in W indicated a hindrance to O diffusion from the presence of dissolved N.
Hydrogen‐Bonded Organic Frameworks Based on Endless‐Stacked Amides for Iodine Capture and Detection
Authors: Li Bin , Qiu Weiguang , Yap Glenn P. A. , Dory Yves L. , Claverie Jerome P. 
Published: December 2023

AbstractRecently, hydrogen‐bonded organic frameworks (HOFs) have emerged as a rapidly advancing class of porous materials with significant potential for applications in the absorption and detection of various chemicals. Here, the unique ability of amide groups to form endless‐stacking H‐bonds is implemented in the design of HOFs. Starting from benzene‐1,3,5‐tricarboxamide and amide‐containing tribenzocyclynes as foundational building blocks, a diverse range of HOFs featuring 1D, 2D, or 3D hydrogen‐bonded frameworks has been synthesized. Among those, all three porous HOFs, HOF_B‐Hex, HOF_T‐Pr and HOF_T‐Hex exhibited permanent porosity, thereby demonstrating the effectiveness of amide‐based HOFs strategy. Notably, HOF_T‐Hex stands out with a 42% pore volume and an impressive iodine capture efficiency of 6.4 g g−1. The iodine capture capacity is influenced not only by pore volume but also by the presence of accessible π‐electrons within the material (i.e., electrons not engaged in a π–π stacking interaction. Furthermore, some of these HOFs exhibited fluorescent responses to iodine positioning them as highly promising materials for both the capture and sensing of iodine.
Rapid Experimental Screening of High‐Entropy Diborides for Superior Oxidation Resistance
Authors: Tang Zhongyu , Wen Zihao , Liu Yiwen , Zhuang Lei , Yu Hulei , Chu Yanhui 
Published: December 2023

AbstractDue to the huge composition space, composition screening is of great importance to the optimization of high‐entropy diborides (HEBs) with exceptional oxidation resistance. However, related studies are lacking. Here, a novel rapid, effective strategy to fully screen the compositions on the oxidation resistance of HEBs is proposed. Specifically, the synthesis of the equiatomic 1‐ to 9‐cation multicomponent diborides of the IVB, VB, and VIB groups in seconds via an ultrafast ultrahigh‐temperature synthesis technique is realized. Subsequently, combined with the thermogravimetric analysis and first‐principles calculations, the roles of incorporated elements are systematically explored. The results show that Zr, Cr, Ta, Nb, and W elements are the key to the improved oxidation resistance of HEBs, while Ti, Mo, and V elements are destructive. In particular, the positive roles of metal elements are mainly attributed to the partial dissolution of the generated metal oxides into the generated B2O3 glass, which can improve the viscosity of B2O3 and thus enhance its high‐temperature stability and reduce the oxygen diffusion rate, as confirmed by the first‐principles calculations. This study paves a way to rapidly screen the elements in HEBs, which can be a guide for further anti‐oxidation designs.
Adsorption, Single‐Molecule Manipulation, and Self‐Assembly of Borazine on Ag(111)
Authors: Weiss Tobias , Baklanov Aleksandr , Michelitsch Georg S. , Reuter Karsten , Schwarz Martin , Garnica Manuela , Auwärter Willi 
Published: December 2023

AbstractThe interaction of borazine with metal supports and the concomitant surface chemistry play important roles in the synthesis of hexagonal boron nitride and the assembly of BN‐doped carbon nanostructures, thus making adsorbed borazine an intriguing model system. Herein, the first real space characterization of individual borazine molecules and highly ordered borazine self‐assemblies on solid supports, combining scanning tunneling microscopy (STM), scanning tunneling spectroscopy, X‐ray photoelectron spectroscopy, and complementary density functional theory modeling is reported. Specifically, a weak, nondissociative adsorption of borazine with the ring aligned in parallel to the surface plane is observed on Ag(111) upon low temperature deposition. Borazine is found to favor hollow adsorption sites, which guide the assembly of intricate borazine assemblies including a porous, chiral honeycomb‐like network, and dense‐packed monolayer films. Additionally, a modification of the borazine adsorption configuration by STM‐based manipulation is demonstrated. Dehydrogenation of individual molecules by voltages pulses yields an upright standing borazine fragment bound via B to Ag. This study thus provides a comprehensive, single‐molecule level characterization of borazine adsorption and surface chemistry on a characteristic coinage metal support and may serve as a reference for advanced low‐dimensional materials based on functionalized borazines or including BN units as dopants.
Fabrication of a Novel Fluorescein Embedded Photocomposite Based on Interpenetrating Polymer Network (IPN) and Its Application in 4D Printing
Authors: Yin Jiansong , Zhao Xianjun , Hu Bo , Zhou Qun , Yu Yijie , Zhang Yijun , Gao Jiangang , Xu Yangyang , Lalevée Jacques 
Published: December 2023

AbstractWith the rapid development of the 3D printing technique, the concept of 4D has emerged, defining time as the fourth dimension. This concept allows for changes in the appearance, function, or other properties of 3D printed objects in response to certain controlled external stimuli over time. In this work, a new photocomposite containing fluorescein based is designed on an interpenetrating polymer network (IPN) system, this system can be generated by the simultaneous photopolymerization of acrylate and epoxide monomers under visible LED@405 nm irradiation. Unexpectedly, combining the reversible fluorometric turn‐on property of fluorescein and the deformation of the IPN in the presence of water, the 3D flower structure printed from this photocomposite would demonstrate a novel dual responsive behavior with both fluorescence and shape changes when it is exposed to water for a short time. This work would present a novel functional photocomposite material and also expand the application prospect of 4D printing.
Programmable Polymeric‐Interface for Voiceprint Biometrics
Authors: Babu Anand , Raoul Ewen , Kassahun Getnet , Dufour Isabelle , Mandal Dipankar , Thuau Damien 
Published: December 2023

AbstractIn the age of data science, voice data can be treated as one of the crucial assets used for strengthening biometrics technologies and biomedical applications. However, voice biometrics is still at emergence state facing voice variability, cross‐linguistic variations, and voice spoofing challenges. These long‐standing issues are proposed to be solved by deploying an organic, flexible, and printed piezoelectric polymeric interface exhibiting several unique features such as strong directionality, stability over a large operating temperature range (30–90 ˚C), broad frequency (6 kHz), ultra sensitivity (5.77 V Pa−1) and high signal‐to‐noise ratio (38–55 dB). By analyzing speech processing parameters acquired by the voice sensor, an individual voiceprint is established, which is further utilized to train a neural network model for deploying artificial intelligence (AI)‐driven voice biometrics, resulting in a remarkable accuracy of >96% for population identification and speaker recognition and >93% for healthcare assessment. Featuring a versatile printing fabrication process, innovative voiceprint approach, and a robust neural network, the programmable polymeric acoustic interface proposes a promising complementary tool to the existing biometrics technologies and plays a vital role in healthcare monitoring.
Zero Birefringence Condition in Lithium Niobate on Insulator Rib Waveguides
Authors: Yusof Nor Roshidah , Ali Norshamsuri , Kolenderski Piotr , Słowik Karolina , Endut Rosdisham , Syed Junid Syed Alwee Aljunid 
Published: December 2023

AbstractBirefringence, quantified as the maximum effective index difference of two orthogonally polarized modes, is one of the key characteristics of Lithium Niobate on Insulator (LNOI) waveguide devices. As LNOI optical properties strongly depend on the polarization of the propagating light beam, achieving the zero‐birefringence condition (ZBC) is highly desired. In this work, a rib LNOI waveguide is designed, and the influence of geometrical dimensions on the birefringence is characterized. From the result, the slab's height is found to be the dominant geometrical factor that significantly contributes to the birefringence, with an optimum slab's height found at 50 nm. For this optimized value, the influence of width and wavelength on birefringence are characterized. The analysis is extended to investigate the properties of group indices that can result in the temporal walk‐off phenomenon. This phenomenon can significantly impact the performance of single‐photon devices, as it can cause a polarization mismatch between the incident photon and the polarization properties of the medium, resulting in reduced efficiency of devices such as single‐photon detectors. In the analysis, the zero birefringence and walk‐off are achieved at narrow waveguide width, 𝑤 of 250 nm and wavelength, = 1500 nm, which is within the telecommunication region band.
Transition Metal Dichalcogenides: Making Atomic‐Level Magnetism Tunable with Light at Room Temperature
Authors: Ortiz Jimenez Valery , Pham Yen Thi Hai , Zhou Da , Liu Mingzu , Nugera Florence Ann , Kalappattil Vijaysankar , Eggers Tatiana , Hoang Khang , Duong Dinh Loc , Terrones Mauricio , Rodriguez Gutiérrez Humberto , Phan Manh‐Huong 
Published: December 2023

AbstractThe capacity to manipulate magnetization in 2D dilute magnetic semiconductors (2D‐DMSs) using light, specifically in magnetically doped transition metal dichalcogenide (TMD) monolayers (M‐doped TX2, where M = V, Fe, and Cr; T = W, Mo; X = S, Se, and Te), may lead to innovative applications in spintronics, spin‐caloritronics, valleytronics, and quantum computation. This Perspective paper explores the mediation of magnetization by light under ambient conditions in 2D‐TMD DMSs and heterostructures. By combining magneto‐LC resonance (MLCR) experiments with density functional theory (DFT) calculations, we show that the magnetization can be enhanced using light in V‐doped TMD monolayers (e.g., V‐WS2, V‐WSe2). This phenomenon is attributed to excess holes in the conduction and valence bands, and carriers trapped in magnetic doping states, mediating the magnetization of the semiconducting layer. In 2D‐TMD heterostructures (VSe2/WS2, VSe2/MoS2), the significance of proximity, charge‐transfer, and confinement effects in amplifying light‐mediated magnetism is demonstrated. We attributed this to photon absorption at the TMD layer that generates electron–hole pairs mediating the magnetization of the heterostructure. These findings will encourage further research in the field of 2D magnetism and establish a novel design of 2D‐TMDs and heterostructures with optically tunable magnetic functionalities, paving the way for next‐generation magneto‐optic nanodevices.
Glycosaminoglycans’ Ability to Promote Wound Healing: From Native Living Macromolecules to Artificial Biomaterials
Authors: Yang Peng , Lu Yifei , Gou Weiming , Qin Yiming , Tan Jianglin , Luo Gaoxing , Zhang Qing 
Published: December 2023

AbstractGlycosaminoglycans (GAGs) are important for the occurrence of signaling molecules and maintenance of microenvironment within the extracellular matrix (ECM) in living tissues. GAGs and GAG‐based biomaterial approaches have been widely explored to promote in situ tissue regeneration and repair by regulating the wound microenvironment, accelerating re‐epithelialization, and controlling ECM remodeling. However, most approaches remain unacceptable for clinical applications. To improve insights into material design and clinical translational applications, this review highlights the innate roles and bioactive mechanisms of native GAGs during in situ wound healing and presents common GAG‐based biomaterials and the adaptability of application scenarios in facilitating wound healing. Furthermore, challenges before the widespread commercialization of GAG‐based biomaterials are shared, to ensure that future designed and constructed GAG‐based artificial biomaterials are more likely to recapitulate the unique and tissue‐specific profile of native GAG expression in human tissues. This review provides a more explicit and clear selection guide for researchers designing biomimetic materials, which will resemble or exceed their natural counterparts in certain functions, thereby suiting for specific environments or therapeutic goals.
Perspectives on Li Dendrite Penetration in Li7La3Zr2O12‐Based Solid‐State Electrolytes and Batteries: Materials, Interfaces, and Charge Transfer
Authors: Biao Jie , Bai Chen , Ma Jiabin , Liu Ming , Kang Feiyu , Cao Yidan , He Yan‐Bing 
Published: December 2023

AbstractGarnet‐type Li7La3Zr2O12 (LLZO) solid‐state electrolytes have gained significant attention as one of the most promising electrolyte candidates for high‐energy‐density energy storage devices due to their superior stability and high ionic conductivity. However, the problem of lithium (Li) dendrite penetration into LLZO hinders the practical application of LLZO in solid‐state Li metal batteries (SSLMBs). Multidisciplinary evaluations are carried out to understand the mechanism of dendrite penetration. Herein, the formation and evolution of different types of Li dendrites within LLZO are reviewed. The Li dendrite penetration process is addressed from the perspectives of material design, Li/LLZO interfacial adaptability, and the interfacial charge transfer process. On this basis, recent efforts and solutions to inhibiting the penetration of Li dendrites in LLZO, including stabilizing LLZO phase and densification techniques, interfacial modifications, and grain boundary manipulations, are summarized. It is expected that the in‐depth understanding of the Li dendrite penetration and corresponding solutions will provide a systemic guideline toward the development of LLZO‐based solid‐state electrolytes and the commercialization of ultra‐stable SSLMBs.
Classical Invasive Description of Informationally‐Complete Quantum Processes
Authors: Richter Moritz F. , Smirne Andrea , Strunz Walter T. , Egloff Dario 
Published: December 2023

AbstractIn classical stochastic theory, the joint probability distributions of a stochastic process obey by definition the Kolmogorov consistency conditions. Interpreting such a process as a sequence of physical measurements with probabilistic outcomes, these conditions reflect that the measurements do not alter the state of the underlying physical system. Prominently, this assumption has to be abandoned in the context of quantum mechanics, yet there are also classical processes in which measurements influence the measured system. Here, conditions that characterize uniquely classical processes that are probed by a reasonable class of such invasive measurements are derived. We then analyze under what circumstances such classical processes can simulate the statistics arising from quantum processes associated with informationally‐complete measurements. It is expected that this investigation will help build a bridge between two fundamental traits of non‐classicality, namely, coherence and contextuality.