Miracle-dz/UniFAR-FTUs huggingface dataset:
Emergency Messages Dissemination Challenges Through Connected Vehicles for Efficient Intelligent Transportation Systems: A Review

Recent growth in transport and wireless communication technologies has aided the evolution of Intelligent Transportation Systems (ITS). The ITS is based on different types of transportation modes like road, rail, ocean and aviation. Vehicular ad hoc network (VANET) is a technology that considers moving vehicles as nodes in a network to create a wireless communication network. VANET has emerged as a resourceful approach to enhance the road safety. Road safety has become a critical issue in recent years. Emergency incidents such as accidents, heavy traffic and road damages are the main causes of the inefficiency of the traffic flow. These occurrences do not only create the congestion on the road but also increase the fuel consumption and pollute the environment. Emergency messages notify the drivers about road accidents and congestions, and how to avoid the dangerous zones. This paper classifies the emergency messages schemes into three categories based on relay node, clustering and infrastructure. The capabilities and limitations of the emergency messages schemes are investigated in terms of dissemination process, message forward techniques, road awareness and performance metrics. Moreover, it highlights VANETbased challenges and open research problems to provide the solutions for a safer, more efficient and sustainable future ITS.
Recent Advancements of N-Doped Graphene for Rechargeable Batteries: A Review

Graphene, a 2D carbon structure, due to its unique materials characteristics for energy storage applications has grasped the considerable attention of scientists. The highlighted properties of this material with a mechanically robust and highly conductive nature have opened new opportunities for different energy storage systems such as Li-S (lithium-sulfur), Li-ion batteries, and metal-air batteries. It is necessary to understand the intrinsic properties of graphene materials to widen its large-scale applications in energy storage systems. In this review, different routes of graphene synthesis were investigated using chemical, thermal, plasma, and other methods along with their advantages and disadvantages. Apart from this, the applications of N-doped graphene in energy storage devices were discussed.
Mechanism for using piezoelectric sensor to monitor strength gain process of cementitious materials with the temperature effect

Recently, the piezoelectric based sensor coupled with electromechanical impedance (EMI) technique is gaining attention on monitoring the mechanical properties changes in cementitious materials. However, the EMI signals obtained from the sensing system are not only influenced by the development of inherent mechanical properties in the host structure but also affected by the variation of temperature. When implementing a piezoelectric based sensor, both the ambient temperature change and the heat release from newly casted concrete would influence the sensing accuracy. In order to eliminate the biases from temperature effect, the mechanisms of EMI technique for strength sensing were investigated. The experiment work was separated in two parts. The piezoelectric sensors were first used to monitor the strength gaining of the newly casted cementitious samples curing under constant temperature. A strength estimation system was developed based on the experiment results. Later, the temperature variation was induced to affect the sensing performance. A temperature compensation technique was proposed to eliminate the temperature effect. It has concluded that the proposed compensation method can improve the strength sensing accuracy. The new understanding should help to promote the practical applicable EMI sensing technique.
Efficient Single Active Layer Electrophosphorescent White Polymer Light‐Emitting Diodes

White organic light-emitting devices (WOLEDs) have drawn intense attention in both scientific and industrial communities due to their potential applications in full-color flat-panel displays, back-lighting sources for liquid-crystal displays and solid-state lighting sources. [1,2] To achieve white emission, mixtures of the three red, green and blue (RGB) primary colors or two complementary colors, are typically required. Various approaches towards realizing WOLEDs have been re-ported, including multilayer structures capable of sequential energy transfer, [3–5] multiple component emissive layers containing an appropriate ratio of RGB phosphorescent or fluorescent dopants, [6–14] polymer blends containing RGB emitting species, [8–16] charge transfer exciplexes or excimers broad emission [4,17] and single component layers that utilize a polymer with broad emission. [18–21] Polymer light-emitting devices (PLEDs) [8–15] offer the advantages of solution processing, including screen printing and ink-jet deposition, large area coverage, and low power consumption. However, white emission PLEDs are less efficient with respect to power efficiency (PE) and luminous efficiency (LE), when compared with devices fabricated using vacuum-deposition technologies. For example, vacuum deposited WO-LEDs have efficiencies that exceed that of the incandescent light bulb (12–17 lm W –1 ). [1] In contrast, to the best of our knowledge, the most efficient white emission PLEDs are below 10 lm W –1 , [12–14] still far away from practical applications for solid-state lighting. In
Redeployment of Shoots into Better-Lit Positions within the Crowns of Saplings of Five Species with Different Growth Patterns

Research Highlights: We demonstrate the first quantitative evidence that the shoot shedding of fast-growing species growing in a high-light environment is part of the process of shoot redeployment into better-lit outer parts of the crown. Background and Objectives: Light foraging by redeploying organs from shaded regions of a tree crown into better-lit regions is considered to apply to both leaves and shoots. To date, however, this hypothesis has never been tested for shoots. Materials and Methods: We investigated the shoot dynamics of saplings of five deciduous woody species. We included fast-growing and slow-growing species (Alnus sieboldiana Matsum., Castanea crenata Siebold & Zucc., Betula ermanii Cham., Acer distylum Siebold & Zucc., and Fagus crenata Blume). Results: Shoots in the shaded regions of the crowns of the fast-growing trees showed higher mortality rates than those at better-lit positions. Because of the selective shedding of the shaded shoots, at the end of the growth period the light environment experienced by the shoots that survived until the following spring was similar to that at the early stage of the same growth period. By contrast, the slow-growing trees displayed slow and determinate growth, with a very low mortality rate of shoots at all positions in the crown. Conclusions: The rapid shoot turnover of the fast-growing species resulted in the redeployment of shoots into better-lit positions within the tree crown in a manner similar to the redeployment of leaves.
Single-crystal H2V3O8 nanowires: a competitive anode with large capacity for aqueous lithium-ion batteries

Single-crystal H2V3O8 nanowires with a width of ∼50 nm were fabricated by a facile one-step hydrothermal method and SEM, TEM, TGA, XRD, XPS were used to characterize their morphology and structure details. The possibility of using this material as an anode candidate for aqueous lithium-ion batteries was investigated for the first time. CV and galvanostatic charge/discharge measurements indicated that the intercalation/deintercalation of Li+ in this material in aqueous electrolyte is highly reversible. A discharge capacity of 234 mAh g−1 can be obtained for the synthesized H2V3O8 nanowires at the current density of 0.1 A g−1 in aqueous solution of 5 M LiNO3 and 0.001 M LiOH, much larger than the available capacities (less than 110 mAh g−1) of other vanadium oxides in aqueous electrolyte. Furthermore, the H2V3O8 nanowires can be charge/discharged upon 50 cycles with nearly no capacity loss in organic electrolyte and a capacity retention over 70% in aqueous electrolyte, showing better cycle stability than other vanadium oxide predecessors for aqueous lithium-ion batteries.
Instructional Leadership and Students Academic Performance: Mediating Effects of Teacher’s Organizational Commitment

This study investigates the mediating effects of teacher organizational commitment on the relationship between principal's instructional leadership and students' academic performance. Principals' effective leadership performance is assumed to be responsible for students' academic performance. However, many findings from the literature indicate no significant direct effect between instructional leadership and students' academic performance. Therefore, the current study hypothesized that principals' instructional leadership indirectly enhances students' academic performances through teacher organizational commitment. Data obtained from 440 primary school teachers from the state of Azad Jammu & Kashmir of Pakistan and pre-existing school academic performance data obtained from each school participated. The data were analyzed using structural equation modeling, employing AMOS. The study's findings indicate that there is an indirect positive effect of principals' instructional leadership and students' academic performance through teacher's organizational commitment. Hence, schools with higher instructional leadership levels had better teachers, commitment to school, teaching work, teaching occupation, workgroup, and higher student's academic performances. Therefore, increasing the instructional leadership practices in schools through teacher organizational commitment contributes to Pakistan's overall student academic performances. Therefore, it is recommended to use instructional leadership components in the curriculum that effectively train new principals.
Line Defects in Molybdenum Disulfide Layers

Layered molecular materials and especially MoS2 are already accepted as promising candidates for nanoelectronics. In contrast to the bulk material, the observed electron mobility in single-layer MoS2 is unexpectedly low. Here we reveal the occurrence of intrinsic defects in MoS2 layers, known as inversion domains, where the layer changes its direction through a line defect. The line defects are observed experimentally by atomic resolution TEM. The structures were modeled and the stability and electronic properties of the defects were calculated using quantum-mechanical calculations based on the Density-Functional Tight-Binding method. The results of these calculations indicate the occurrence of new states within the band gap of the semiconducting MoS2. The most stable nonstoichiometric defect structures are observed experimentally, one of which contains metallic Mo–Mo bonds and another one bridging S atoms.
A new CaCO3-template method to synthesize nanoporous manganese oxide hollow structures and their transformation to high-performance LiMn2O4 cathodes for lithium-ion batteries

This paper presents a new CaCO3-template synthesis of highly nanoporous manganese oxide hollow structures and their transformation to high-performance LiMn2O4 cathodes for lithium-ion batteries via the facile coprecipitation of Mn–Ca-carbonates and temperature-controlled decomposition of MnCO3 and CaCO3, followed by the selective removal of the carbonates by washing with HCl. The as-prepared Mn2O3 nanostructures showed very high specific surface area with their subunit particle size of 100 nm. The transformation to uniformly porous LiMn2O4 hollow structures was successfully achieved by the facile impregnation of LiOH into the porous Mn2O3 hollow precursors, followed by a conventional solid-state reaction. The LiMn2O4 hollow structures deliver a discharge capacity of about 120 mA h g−1 at a 1 C rate and 115 mA h g−1 at a 10 C rate with excellent cycling stability. The capacity retention approached 94% after up to 800 cycles of charging–discharging at a 10 C rate.
Visual-Based Localization Using Pictorial Planar Objects in Indoor Environment

Localization is an important technology for smart services like autonomous surveillance, disinfection or delivery robots in future distributed indoor IoT applications. Visual-based localization (VBL) is a promising self-localization approach that identifies a robot’s location in an indoor or underground 3D space by using its camera to scan and match the robot’s surrounding objects and scenes. In this study, we present a pictorial planar surface based 3D object localization framework. We have designed two object detection methods for localization, ArPico and PicPose. ArPico detects and recognizes framed pictures by converting them into binary marker codes for matching with known codes in the library. It then uses the corner points on a picture’s border to identify the camera’s pose in the 3D space. PicPose detects the pictorial planar surface of an object in a camera view and produces the pose output by matching the feature points in the view with that in the original picture and producing the homography to map the object’s actual location in the 3D real world map. We have built an autonomous moving robot that can self-localize itself using its on-board camera and the PicPose technology. The experiment study shows that our localization methods are practical, have very good accuracy, and can be used for real time robot navigation.
Trends in combating fake news on social media – a survey

ABSTRACT Social media following its introduction has witnessed a lot of scholarly attention in recent years due to its growing popularity. These various social media sites have become the mecca of information because of their less costly and easy accessibility. Although these sites were developed to enhance our lives, they are seen as both angelic and vicious. Growing misinformation and fake content by malicious users have not only plagued our online social media ecosystem into chaos, but it also meted untold suffering to humankind. Recently, social media has witnessed a reverberation amid the proliferation of fake news which has made people reluctant to engage in genuine news sharing for fear that such information is false. Consequently, there is a dire need for these fake content to be detected and removed from social media. This study explores the various methods of combating fake news on social media such as Natural Language Processing, Hybrid model. We surmised that detecting fake news is a challenging and complex issue, however, it remains a workable task. Revelation in this study holds that the application of hybrid-machine learning techniques and the collective effort of humans could stand a higher chance of fighting misinformation on social media.
Uji Sensitivitas Skema Parameterisasi Mikrofisik dengan Verifikasi Radar Cuaca untuk Simulasi Fenomena Hujan Es (Studi Kasus : Jakarta, 22 November 2018)

Model cuaca numerik WRF – ARW digunakan dalam membuat prakiraan dan menganalisis suatu fenomena cuaca ekstrem hujan es. Pada WRF – ARW terdapat pilihan pendekatan terhadap proses fisis yaitu konfigurasi Skema parameterisasi yang menentukan hasil dari simulasi model numerik. Proses mikrofisik berperan penting melalui pengaruh langsung terhadap kekuatan kolam dingin dan pemanasan laten dalam awan konvektif. Penelitian ini bertujuan untuk mendapatkan Skema parameterisasi terbaik dan mengetahui kondisi atmosfer saat kejadian hujan es di wilayah Jakarta Pusat menggunakan model WRF – ARW. Adapun tiga Skema parameterisasi mikrofisik yang diuji adalah WSM3, WSM6 dan THOMPSON. Pengolahan WRF – ARW menggunakan input data FNL yang didapatkan dari NCEP dan data radar EEC yang diperoleh dari Stasiun Meteorologi Cengkareng serta diolah menggunakan Rainbow. Variabel yang diolah adalah nilai reflektivitas secara spasial dan vertikal yang dibandingkan dengan pengamatan radar cuaca. Hasil simulasi menunjukkan Skema WSM6 dan THOMPSON cukup representatif dalam menggambarkan pola sel konvektif kuat di wilayah Jakarta Pusat meskipun lokasi jatuhnya hujan es berbeda dengan hasil pengamatan radar. Kemudian, hasil verifikasi menunjukkan Skema THOMPSON lebih baik dengan nilai RMSE lebih kecil dan nilai korelasi yang tinggi. Kesimpulan dari penelitian ini bahwa Skema THOMPSON cukup baik dalam menggambarkan hujan es di wilayah Jakarta Pusat dan sekitarnya.
Isotope Tracing Study of GeO Desorption Mechanism from GeO2/Ge Stack Using 73Ge and 18O

GeO desorption from a GeO2/Ge stack is a critical concern in Ge metal oxide semiconductor field effect transistors (MOSFETs). In this contribution, we focus on a uniform-desorption region and unveil the GeO desorption mechanism from a GeO2/Ge stack by 73Ge and 18O isotope tracing in thermal desorption spectroscopy (TDS) analysis, in which the Ge and O diffusion kinetics in GeO2 and the interfacial reaction kinetics have been investigated. Through 73Ge isotope tracing, we have clarified that Ge in the desorbed GeO dominantly comes from the GeO2 surface. Moreover, the self-diffusivity of oxygen was evaluated to be much larger than Ge in GeO2. Furthermore, owing to the difference among GeO desorptions from GeO2/Ge stacks with various substrate orientations, the reaction at the GeO2/Ge interface was attributed to the redox reaction kinetics. On the basis of our experimental findings, we have proposed an oxygen vacancy diffusion model of the GeO desorption mechanism.
Encapsulated Ruthenium(II) Complexes in Biocompatible Poly(d,l-lactide-co-glycolide) Nanoparticles for Application in Photodynamic Therapy.

The elaboration, characterisation and efficiency of potential two-photon-excited photodynamic therapy (PDT) treatment of new poly(d,l-lactide-co-glycolide) nanoparticles loaded with ruthenium(II) complexs are presented. The materials are based on the encapsulation of RuII complexes through an all-biocompatible process. The size of the nanoparticles is around 100 nm. The internal concentration is several orders of magnitude higher than the overall concentration, which leads to a more efficient and targeted effect. The therapeutic potential for PDT of these nanoparticles has been studied in vitro on C6 glioma cells.
PVdF-based membranes for DMFC applications

This paper reports the synthesis and the properties of microporous, ceramic-added, composite poly(vinylidene) fluoride (PVdF)-based proton conducting membranes for direct methanol fuel cells (DMFCs). The favorable characteristics of these membranes are an high and stable conductivity, a proton transport mechanism not critically related to the water content, the low cost, and the low methanol crossover. Tests in a methanol-air laboratory cell demonstrate the applicability of these membranes in DMFCs.
Post-translational Modifications of bZIP Transcription Factors in Abscisic Acid Signaling and Drought Responses

Under drought stress, plants have developed various mechanisms to survive in the reduced water supply, of which the regulation of stress-related gene expression is responsible for several transcription factors. The basic leucine zippers (bZIPs) are one of the largest and most diverse transcription factor families in plants. Among the 10 Arabidopsis bZIP groups, group A bZIP transcription factors function as a positive or negative regulator in ABA signal transduction and drought stress response. These bZIP transcription factors, which are involved in the drought response, have also been isolated in various plant species such as rice, pepper, potato, and maize. Recent studies have provided substantial evidence that many bZIP transcription factors undergo the post-translational modifications, through which the regulation of their activity or stability affects plant responses to various intracellular or extracellular stimuli. This review aims to address the modulation of the bZIP proteins in ABA signaling and drought responses through phosphorylation, ubiquitination and sumoylation.
Strategies to enhance graft performance in cord blood transplantation

Umbilical cord blood (CB) serves as one of the alternative donor sources for hematopoietic stem cell transplantation (HSCT) in those patients lacking a matched related donor. However, the relatively high incidence of engraftment failure and/or delayed engraftment following cord blood transplantation (CBT) has been a major obstacle against its success. The usage of two CB units has made CBT possible in adults when a single CB unit with an adequate cell number is lacking, but it failed to demonstrate any beneficial effect in children and adolescents. In recent years, unmanipulated haploidentical graft has been replacing CB owing to its rapid availability along with low incidence of acute and chronic graft-versus-host disease due to the usage of post-transplant cyclophosphamide. Given this situation, overcoming the engraftment related issues is crucial in order for CBT to remain a realistic alternative of allogeneic HSCT. This review discusses the engraftment-related issues in CBT and recent advances to overcome those, highlighting the role of conditioning, ex vivo CB stem cell expansion, and cotransplantation of mesenchymal stem/stromal cells.
The relationship between cognitive engagement and students’ performance in a simulation-based training environment: an information-processing perspective

ABSTRACT In this paper, we adopted an information-processing perspective to examine the relationship between cognitive engagement and students’ performance in a simulation-based training environment. In particular, we examined what forms of cognitive engagement students used while diagnosing virtual patients and whether engagement forms predicted students’ diagnostic confidence and efficacy. A total of 88 medical students from a large North American university voluntarily participated in this study. We used latent profile analysis (LPA), a person-centered statistical method, to identify groups of students with similar information processing patterns. Findings from this study revealed that students displayed various forms of cognitive engagement, i.e. recipience, resource management, and task-focused. Moreover, we found that group difference in diagnostic confidence was moderated by task complexity. In terms of diagnostic efficacy, students who were task-focused or resource managers did better than the recipience students. The findings advance our understanding of theories of cognitive engagement as well as inform the design of effective interventions in developing simulation-based learning environments.
Principalship and Mentoring: A Review of Perspectives, Evidence, and Literature 1999 – 2019

The aim of the present article is to review literature on mentoring of school principals. The review focuses on the importance of mentoring in fostering effective leadership as a principal by presenting the pervasive definitions and perspectives on mentoring in the field. Second, based upon predefined selection criteria, we present empirical evidence from a number of studies organized by emergent themes on how mentoring in the principalship is conceived and valued. The bulk of the article presents evidence from studies organized along themes. Two central themes emerged in the review focused on determinants of effective mentoring relationships: a) the mentor and protege pairing and b) length of time in the mentoring relationship including enough time for mentoring sessions. The article concludes with methodological recommendations and an outline of possible directions for future research concerning these commonly overlooked, yet critical features of successful mentoring programs