bluuebunny/crossref_metadata_2025_split huggingface dataset:
Aplikasi Kriptografi Database MySQL Menggunakan Metode Markel Helman
Authors: Rifai Ahmad , Sunandar Hery 
Published: October 2021

ABSTRAK
Keamanan merupakan salah satu hal yang sangat penting dalam penyimpanan data, khususnya penyimpanan data pada Database yang didalamnya terdapat banyak ancaman dari pihak yang tidak bertanggungjawab.
Kriptografi merupakan metode dengan menyandikan isi informasi (plaintext) menjadi isi yang sulit atau bahkan tidak dipahami melalui proses enkripsi. Untuk memperoleh kembali informasi yang asli dapat dilakukan dengan proses dekripsi, yang tentunya dengan menggunakan kunci yang benar.
Untuk melindungi akses data dari pihak-pihak yang tidak berkepentingan tersebut maka sangat diperlukan enkripsi dan dekripsi. Agar dapat dilakukan dengan baik, dibutuhkan suatu algoritma untuk enkripsi dan dekripsi. Metode yang digunakan disini adalah Metode Merkle Hellman.
CHARACTERISTICS OF CONSUMTIVE BEHAVIOR IN ONLINE SHOP: SHOPPING TRENDS DURING THE COVID-19 PANDEMIC
Authors: Usman Effendi  , Rahmayanti Rani , Ferdiannur Usman Ryandi , Abubakar  , MR Mariati 
Published: October 2021

The aim of the research to find out whether there is a relationship between conformity and consumptive behavior of Muslim fashion products on online shop hijup consumers during the covid-19 pandemic?, to find out Is there a relationship between celebrity support and consumptive behavior in Muslim fashion products for online shop hijup consumers during the COVID-19 pandemic?, and to find out is there a relationship between conformity and celebrity support with the consumptive behavior of Muslim fashion products in online shop hijup consumers during the covid-19 pandemic?. . The research focuses on the relationship between conformity and celebrity support with the consumptive behavior of Muslim fashion products that are marketed online. The population of this research is online shop consumers who have purchased muslim fashion products at online shops and the sampling technique uses incidental sampling. The data collection method used a questionnaire with a Likert scale model given to online shop consumers. Data analysis used multiple regression stepwise method using bivariate and multivariate method. The results of the analysis found that there is a relationship between conformity and celebrity support with consumptive behavior in online consumer muslim fashion products with a contribution of 67%. Thus the results of this research can state that the higher the conformity and support of celebrities, the higher the consumptive behavior of online shop consumers and vice versa
Children do not ignore (null objects): Against deficit accounts of the null object stage in language acquisition
Authors: Pérez-Leroux Ana T. 
Published: October 2021

Children across a variety of languages omit direct objects at higher rates that adults. It has been argued that these omissions arise from children’s performance or pragmatic limitations. The null object approach holds that children start by allowing a broader set of mechanisms for the recoverability of null objects than those possible in the adult grammar, which becomes more restricted with experience. Comprehension data is considered key evidence for evaluating representational approaches, but the interpretation of previous comprehension results is obscured by methodological issues. This article presents new data contrasting the interpretation of various types of direct objects in negative sentences, including null objects (Johnny is not eating) and anaphoric and negative polarity items (not eating it/not eating anything). English-speaking children aged 4–5 (n = 75) participated in three separate comprehension studies contrasting the interpretation of null objects to overt objects. Children consistently accepted sentences with overt anaphoric objects and rejected sentences with negative polarity objects, and treated sentences with null objects as fully ambiguous.
Modeling the Transmission Dynamics of Measles in the Presence of Treatment as Control Strategy
Authors: Paul Rose Veronica , Atokolo William , Saka Salawu Ademu , Joseph Achonu Omale 
Published: October 2021

We present in this research work, mathematical modeling of the transmission dynamics of measles using treatment as a control measure. We determined the Disease Free Equilibrium (DFE) point of the model after which we obtained the Basic Reproduction Number ( R0 ) of the model using the next generation approach. The model Endemic Equilibrium (EE) point was also determined after which we performed Local Stability Analysis(LAS) of the Disease Free Equilibrium point and result shows that the Disease Free Equilibrium point of the model would be stable if ( R0 <1). Global Stability Analysis (GAS) result shows that, ( R0 ≤ 1) remains the necessary and sufficient condition for the infection to go into extinction from a population. We carried out Sensitivity Analysis of the model using the Basic Reproduction Number and we discovered that ( δ , μ, ν , θ ) are sensitive parameters that should be targeted towards control intervention strategy as an increase in these values can reduce the value of ( R0 ) to a value less than unity and such can reduce the spread of measles in a population. Model simulation was carried out using mat lab software to support our analytical results.
Evaluation of Yield Performance of Potato (Solanum tuberosum L.) Varieties with Varied Dates of Planting under North Central Plateau Zone (NCPZ) of Odisha
Authors: Mishra N. , Sahoo K. C. , Ray M. , Majhi P. K. , Das S. , Tudu S. 
Published: October 2021

Aim: To identify the proper variety and suitable date of planting of potato for North Central Plateau Zone (NCPZ) of Odisha.
Study Design: The experiment was laid in a Factorial Randomized Block Design (FRBD) with three replications.
Place and Duration of Study: The field experiment was carried out at Field Experimental Block, Regional research and Technology Transfer Station (RRTTS), Keonjhar, Odisha University of Agriculture and Technology, Odisha. The investigation was conducted during rabi-2015-16 and rabi-2016-17.
Methodology: There were four high yielding potato genotypes used as sub-factor for the study such as V1: Kufri Jyoti, V2: Kufri Surya, V3: Kufri Ashoka and V4: Kufri Pukhraj. The materials were planted in three different dates (D1: 15th November, D2: 25th November and D3: 5th December) as main-factor to identify the superior variety with suitable dates of planting.
Results: The results of pooled analysis of variance (ANOVA) shown that the genotypes had significant differences for the dates of planting on yield. Higher tuber yield was recorded in the variety Kufri Pukhraj in both rabi-2015-16 (28.37 t ha-1) and rabi-2016-17 (35.53 t ha-1) along with higher mean yield (31.95 t ha-1). All the varieties have higher yield when planted on D1 (15th November) as compared to the other two date of planting.
Conclusion: The varietal and environmental variations as well as their interaction had a considerable influence on yield and its attributes. In this investigation, Kufri Pukhraj was identified as higher yielder and 15th November was found best suitable planting date for north central plateau zone of Odisha, as this date given higher yield as compared to the other two dated of plating. Therefore, if a specific window of date of planting can be ascertained to the farmers of this region then it would help to cultivate potato exactly when the climatic conditions are favorable for its growth and ultimately to get a high crop yield.
Correlation and Path Analysis Studies on Yield and Yield Components in Musk Melon (Cucumis melo L.)
Authors: Nanthakumar S. , Sankar R. S. , Rameshkumar D. 
Published: October 2021

Problem: The correlation co-efficient indicates the nature of association among the different traits, path analysis splits the correlation co-efficient into measure of direct and indirect effects thus providing understanding of the direct and indirect association of each character towards yield.
Methods: An experiment on correlation and path analysis involving thirty F1 and six parents in muskmelon (Cucumis melo L.) was carried out at Department of Horticulture, Adhiparasakthi Agricultural College, Kalavai, Vellore district, Tamil Nadu India.
Results: The fruit yield per plant had exhibited highly significant and positive correlation with individual fruit weight (0.845), fruit diameter (0.656), fruit length (0.536) and flesh thickness (0.503). Path coefficient analysis revealed that the characters viz., fruit weight exerted the highest positive direct effect (1.034) on fruit yield per vine followed by number of fruits per vine (0.497), days to first female flower anthesis (0.088), vine length (0.072) and fruit length (0.070).
Conclusion: The fruit yield per plant can be improved by making selection of these traits in yield improvement programme.
Unit Groups of Classes of Five Radical Zero Commutative Completely Primary Finite Rings
Authors: Were Hezron Saka , Owino Maurice Oduor , Gichuki Moses Ndiritu 
Published: October 2021

In this paper, R is considered a completely primary finite ring and Z(R) is its subset of all zero divisors (including zero), forming a unique maximal ideal. We give a construction of R whose subset of zero divisors Z(R) satisfies the conditions (Z(R))5 = (0); (Z(R))4 ̸= (0) and determine the structures of the unit groups of R for all its characteristics.
Linking violent video games to cyberaggression among college students: A cross‐sectional study
Authors: Li Yongzhan 
Published: October 2021

AbstractTo explore the relationship between exposure to violent video games and college students' cyberaggressive behavior and its internal mechanism, a cross‐sectional survey was carried out with a sample of 1141 college students who completed the Violent Video Game Listing Questionnaire (VVLQ), Adolescent Online Aggressive Behavior Scale (AOABS), Beliefs Supportive of Violence Scale (BSVS), and Trait Anger Scale (TAS). The results showed that (1) exposure to violent video games was positively associated with college students' cyberaggressive behavior; (2) trait anger moderated the positive relationship between exposure to violent video games and college students' cyberaggressive behavior; (3) trait anger moderated the positive relationship between exposure to violent video games and college students' attitude toward violence; (4) attitude toward violence acted as a partial mediator in the positive relationship between exposure to violent video games and college students' cyberaggressive behavior; and (5) through attitude toward violence, trait anger plays a mediated moderating role in the positive relationship between exposure to violent video games and college students' aggressive behavior.
Electronically Conjugated Multifunctional Covalent Triazine Framework for Unprecedented CO2 Selectivity and High‐Power Flexible Supercapacitor
Authors: Mahato Manmatha , Nam Sanghee , Tabassian Rassoul , Oh Saewoong , Nguyen Van Hiep , Oh Il‐Kwon 
Published: October 2021

AbstractMultifunctional porous carbon materials are the key to a clean, safe, and sustainable working environment and energy storage devices because they can be reused, recycled, and repurposed. Here, unprecedented electronically conjugated nanoporous covalent triazine frameworks (CTFs) containing 4‐(Dicyanomethylene)‐2,6‐dimethyl‐4H‐pyran (DDP) surface functionalities is designed for the selective adsorption of carbon dioxide (CO2) over nitrogen (N2) gas under ambient conditions; materials are repurposed to form an active electrode material for the fabrication of dimensionally stable high energy density solid‐state flexible supercapacitors (SFSC). The functional 4H‐pyran unit of DDP in‐resonance with the triazine frameworks enriches the overall surface polarities for improved selective gas adsorption and serves as charge storage and/or discharge pockets during electrochemical switching. Consequently, DDP‐based CTFs show an optimum CO2 adsorption of 154.0 mg g−1 and record CO2/N2 selectivity of 185.8 at 273 K under atmospheric pressure. In addition, an eminent energy density of 147.5 Wh kg−1 at a power density of 750 W kg−1 is accomplished with the fabricated SFSC. This material demonstrates no loss of capacitive performance under mechanical bending of 140° for long cycles and can power a commercial light emitting diode easily.
Novel Narrow Bandgap Terpolymer Donors Enables Record Performance for Semitransparent Organic Solar Cells Based on All‐Narrow Bandgap Semiconductors
Authors: Huang Xuexiang , Zhang Lifu , Cheng Yujun , Oh Jiyeon , Li Chunquan , Huang Bin , Zhao Lin , Deng Jiawei , Zhang Youhui , Liu Zuoji , Wu Feiyan , Hu Xiaotian , Yang Changduk , Chen Lie , Chen Yiwang 
Published: October 2021

AbstractSemitransparent organic solar cells (ST‐OSCs) based on all narrow bandgap (all‐NBG) semiconductors are attractive for building integration. Unfortunately, advanced NBG Y‐series acceptors cannot well match with the NBG donors, resulting from their mismatched energy levels and poor compatibility. Herein, a facile terpolymer design strategy is adopted to improve the matching of Y6 with efficient NBG polymer donor PCE10. F or Cl atom functionalized benzodithiophene (BDT) are introduced into the PCE10 matrix to afford two series of terpolymers, namely PCE10‐BDT2F and PCE10‐BDT2Cl. Compared with PCE10, all terpolymers show deeper energy levels, higher extinction coefficients, enhanced face‐on orientation, and better compatibility with Y6. Consequently, significant breakthroughs are achieved for both opaque and semitransparent devices. Particularly, a record power conversion efficiency (PCE) of 13.80% is achieved by PCE10‐BDT2F:Y6‐based device, nearly 40% higher than PCE10:Y6‐based device. ST‐OSCs also achieve impressive PCEs of 12.00% and 10.85% with average visible transmittance (AVT) of 30.98% and 41.08%, respectively, and both PCEs are the highest values with AVT over 30% and 40%. An outstanding light utilization efficiency (LUE) of 4.46% further demonstrates the successful balance of PCE and AVT. These results demonstrate that the design of NBG terpolymers is a facile and highly encouraging strategy for promoting breakthroughs in ST‐OSCs.
Inkjet Printed Disposable High‐Rate On‐Paper Microsupercapacitors
Authors: Li Zheng , Ruiz Virginia , Mishukova Viktoriia , Wan Qiansu , Liu Haomin , Xue Han , Gao Ying , Cao Gaolong , Li Yuanyuan , Zhuang Xiaodong , Weissenrieder Jonas , Cheng Shi , Li Jiantong 
Published: October 2021

AbstractOn‐paper microsupercapacitors (MSCs) are a key energy storage component for disposable electronics that are anticipated to essentially address the increasing global concern of electronic waste. However, nearly none of the present on‐paper MSCs combine eco‐friendliness with high electrochemical performance (especially the rate capacity). In this work, highly reliable conductive inks based on the ternary composite of poly(3,4‐ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS), graphene quantum dots and graphene are developed for scalable inkjet printing of compact (footprint area ≈ 20 mm2) disposable MSCs on commercial paper substrates. Without any post treatment, the printed patterns attain a sheet resistance as low as 4 Ω ▫−1. The metal‐free all‐solid‐state MSCs exhibit a maximum areal capacitance > 2 mF cm−2 at a high scan rate of 1000 mV s−1, long cycle life (>95% capacitance retention after 10 000 cycles), excellent flexibility, and long service time. Remarkably, the “totally metal‐free” MSC arrays are fully inkjet printed on paper substrates and also exhibit high rate performance. The life cycle assessment indicates that these printed devices have much lower eco‐toxicity and global warming potential than other on‐paper MSCs.
Conjugated Polymer Mesocrystals with Structural and Optoelectronic Coherence and Anisotropy in Three Dimensions
Authors: Yu Liyang , Pavlica Egon , Li Ruipeng , Zhong Yufei , Silva Carlos , Bratina Gvido , Müller Christian , Amassian Aram , Stingelin Natalie 
Published: October 2021

AbstractSemiconducting mesocrystalline bulk polymer specimens that exhibit near‐intrinsic properties using channel‐die pressing are demonstrated. A predominant edge‐on orientation is obtained for poly(3‐hexylthiophene‐2,5‐diyl) (P3HT) throughout 2 mm‐thick/wide samples. This persistent mesocrystalline arrangement at macroscopic scales allows reliable evaluation of the electronic charge‐transport anisotropy along all three crystallographic axes, with high mobilities found along the π‐stacking. Indeed, charge‐carrier mobilities of up to 2.3 cm2 V−1 s−1 are measured along the π‐stack, which are some of the highest mobilities reported for polymers at low charge‐carrier densities (drop‐cast films display mobilities of maximum ≈10−3 cm2 V−1 s−1). The structural coherence also leads to an unusually well‐defined photoluminescence line‐shape characteristic of an H‐aggregate (measured from the surface perpendicular to the materials flow), rather than the typical HJ‐aggregate feature usually found for P3HT. The approach is widely applicable: to electrical conductors and materials used in n‐type devices, such as poly{[N,N′‐bis(2‐octyldodecyl)‐naphthalene‐1,4,5,8‐bis(dicarboximide)‐2,6‐diyl]‐alt‐5,5′‐(2,2′‐bithiophene)} (N2200) where the mesocrystalline structure leads to high electron transport along the polymer backbones (≈1.3 cm2 V−1 s−1). This versatility and the broad applicability of channel‐die pressing signifies its promise as a straightforward, readily scalable method to fabricate bulk semiconducting polymer structures at macroscopic scales with properties typically accessible only by the tedious growth of single crystals.
Nanoprecipitate‐Strengthened High‐Entropy Alloys
Authors: Liu Liyuan , Zhang Yang , Han Jihong , Wang Xiyu , Jiang Wenqing , Liu Chain‐Tsuan , Zhang Zhongwu , Liaw Peter K. 
Published: October 2021

AbstractMulticomponent high‐entropy alloys (HEAs) can be tuned to a simple phase with some unique alloy characteristics. HEAs with body‐centered‐cubic (BCC) or hexagonal‐close‐packed (HCP) structures are proven to possess high strength and hardness but low ductility. The faced‐centered‐cubic (FCC) HEAs present considerable ductility, excellent corrosion and radiation resistance. However, their strengths are relatively low. Therefore, the strategy of strengthening the ductile FCC matrix phase is usually adopted to design HEAs with excellent performance. Among various strengthening methods, precipitation strengthening plays a dazzling role since the characteristics of multiple principal elements and slow diffusion effect of elements in HEAs provide a chance to form fine and stable nanoscale precipitates, pushing the strengths of the alloys to new high levels. This paper summarizes and review the recent progress in nanoprecipitate‐strengthened HEAs and their strengthening mechanisms. The alloy‐design strategies and control of the nanoscale precipitates in HEAs are highlighted. The future works on the related aspects are outlined.
Boosting Room Temperature Tunnel Magnetoresistance in Hybrid Magnetic Tunnel Junctions Under Electric Bias
Authors: González‐Ruano César , Tiusan Coriolan , Hehn Michel , Aliev Farkhad G. 
Published: October 2021

AbstractSpin‐resolved electron symmetry filtering is a key mechanism behind giant tunneling magnetoresistance (TMR) in Fe/MgO/Fe and similar magnetic tunnel junctions (MTJs), providing room temperature functionality in spin electronics. However, the electron symmetry filtering breaks down under applied bias, dramatically reducing the TMR above 0.5 V. This strongly hampers the application range of MTJs. To circumvent the problem, resonant tunneling through quantum well states in thin layers has been used so far. This mechanism, however, is mainly effective at low temperatures. Here, a fundamentally different approach is demonstrated, providing a strong TMR boost under applied bias in V/MgO/Fe/MgO/Fe/Co hybrids. This pathway uses spin orbit coupling (SOC) controlled interfacial states in vanadium, which contrary to the V(001) bulk states are allowed to tunnel to Fe(001) at low biases. The experimentally observed strong increase of TMR with bias is modeled using two nonlinear resistances in series, with the low bias conductance of the first (V/MgO/Fe) element being boosted by the SOC‐controlled interfacial states, while the conductance of the second (Fe/MgO/Fe) junctions are controlled by the relative alignment of the ferromagnetic layers. These results pave a way to unexplored and fundamentally different spintronic device schemes, with tunneling magnetoresistance uplifted under applied electric bias.
Hyperbranched Microwire Networks of Organic Cocrystals with Optical Waveguiding and Light‐Harvesting Abilities
Authors: Feng Zuofang , Hai Tao , Liang Yin , Zhang Qing , Lei Yilong 
Published: October 2021

AbstractWe report the synthesis of hyperbranched organic microwire (MW) networks comprising 1,4‐bis(pentafluorostyryl)benzene (10Ft) and 9,10‐bis(phenylethynyl)anthracene (BA) using a simple solution co‐assembly route. Pure 10Ft or BA assemblies cannot produce such complex MW networks; in contrast with a binary cocrystal of 10Ft and BA with a 2:1 molar ratio ((2:1)10Ft:BA), which is formed via intermolecular arene‐perfluoroarene (AP) interactions. A new generation of multiple MWs grow epitaxially on the previous generation of MWs to form MW arrays in which BA may also act as an intermediate product to facilitate the regeneration of (2:1)10Ft:BA. Highly aligned and well‐connected MW networks enable superior optical waveguiding ability. Moreover, a red‐emitting dopant, 5,12‐bis(phenylethynyl)naphthacene (BN) was incorporated into (2:1)10Ft:BA host MWs, giving light‐harvesting hierarchical MW networks via an energy‐transfer (ET) process. The realization of the hyperbranched MWs provides us with deep insight into the rational creation of complex branched arrays from functional organic cocrystals.
Active Exsolved Metal–Oxide Interfaces in Porous Single‐Crystalline Ceria Monoliths for Efficient and Durable CH4/CO2Reforming
Authors: Xiao Yongchun , Xie Kui 
Published: October 2021

AbstractDry reforming of CH4/CO2provides an attractive route to convert greenhouse gas into syngas; however, the resistance to sintering and coking of catalyst remains a fundamental challenge at high operation temperatures. Here we create active and durable metal–oxide interfaces in porous single‐crystalline (PSC) CeO2monoliths with in situ exsolved single‐crystalline (SC) Ni particles and show efficient dry reforming of CH4/CO2at temperatures as low as 450 °C. We show the excellent and durable performance with ≈20 % of CH4conversion and ≈30 % of CO2conversion even in a continuous operation of 240 hours. The well‐defined active metal–oxide interfaces, created by exsolving SC Ni nanoparticles from PSC NixCe1−xO2to anchor them on PSC CeO2scaffolds, prevent nanoparticle sintering and enhance the coking resistance due to the stronger metal–support interactions. Our work would enable an industrially and economically viable path for carbon reclamation, and the technique of creating active and durable metal–oxide interfaces in PSC monoliths could lead to stable catalyst designs for many challenging reactions.
Construction of NH‐Unprotected Spiropyrrolidines and Spiroisoindolines by [4+1] Cyclizations of γ‐Azidoboronic Acids with Cyclic N‐Sulfonylhydrazones
Authors: López Lucía , Cabal María‐Paz , Valdés Carlos 
Published: October 2021

AbstractThe reactions of N‐sulfonylhydrazones derived from cyclic ketones with γ‐azidopropylboronic acid and 2‐(azidomethyl)phenylboronic acid give rise to spirocyclic pyrrolidines and spiroisoindolines, respectively. The reactions proceed without the need of any transition‐metal catalyst through a domino process that comprises the formation of a Csp3‐C and a Csp3‐N bond of the former hydrazonic carbon. The scope of the reaction has been explored by the preparation of over 50 examples of NH‐unprotected spirocyclic derivatives. Importantly, this methodology could be applied for the preparation of alkaloid steroids from steroid N‐tosylhydrazones.