Miracle-dz/UniFAR-FTUs huggingface dataset:
Analysis of the Capacity, Spectral Efficiency and Probability of Outage of Adaptive Mobile Channel for WiMAX System

This paper presents an analysis of the channel capacity, spectral efficiency and probability of outage for the 4th generation adaptive modulation ofWiMAX system. The adaptive modulation techniquesare Variable rate-Variable power, Variable rate-Constant power and Constant rate by using truncated channel inversion in the presence of Additive White Gaussian Noise (AWGN), Rayleigh fading and Nakagami fading. The growing demand for wireless communication requires determining the capacity, spectral efficiency and probability of outage of these channels to evaluate the performance time varying channels. The analysis results show the advantage of using WiMAX system with adaptive MQAM modulation techniques. Analytical results have proved that the channel capacity is improved by (38) M bit/sec when increasing the bandwidth fromMHz to 20MHz in the presence of AWGN, the capacity channel is improved by (35) Mbit/Secwhen increasing the bandwidth from 1MHz to 20MHz in the presence of Rayleigh fading with Variable rate-Variable power, the capacity channel is improved in the presence of Nakagami fading (m=2)which is (37) Mb/sec and improved (38) when (m=3) due to severe effect of Nakagami when increasing the 1MHz to 20MHz for a given SNR. However, the analysis of spectral efficiency shows that maximum spectral efficiency is accrues in Shannon capacity.The spectral efficiency decreases when Bit Error Rate (BER) increases. The analysis results show the spectral efficiency decreases (0.5) when BER=10 is used than when BER=10 is used. The probability of outage increases when the BER increase.
Microwave breast phantom measurements with a cavity-backed Vivaldi antenna

The authors design a cavity-backed Vivaldi antenna (CBVA) for microwave breast measurements. The design criteria for the antenna is shaped by the requirements of the free-space measurement scenario where the receiving and the transmitting antennas are rotated by a mechanical scanner. Later, the authors have performed various breast phantom measurements with the CBVA to reveal its feasibility for microwave tomography.
Modeling of threshold voltage, mobility, drain current and subthreshold leakage current in virgin and irradiated silicon-on-insulator fin-shaped field effect transistor device

In this paper, an analytical model for the estimation of threshold voltage shift, mobility, drain current and subthreshold leakage current in virgin as well as irradiated nanoscale fin-shaped field effect transistor (FinFET) device has been presented. The generation of traps in the buried oxide (BOX) and the interface traps at the sidewall influence the characteristics of an irradiated FinFET device. A mobility model considering the influence of quantum mechanical structural confinement and the contribution of interface traps due to all the interfaces is reported in this paper. The modified definition of effective field is adopted to account for nonzero electric field at the back oxide interface of SOI (Silicon-on-Insulator) FinFET device. The results obtained on the basis of our models were compared and contrasted with reported experimental results. A close match was found that validate our analytical modeling approach.
The Multifaceted Role of Curcumin in Advanced Nanocurcumin Form in the Treatment and Management of Chronic Disorders

Curcumin is the primary polyphenol in turmeric’s curcuminoid class. It has a wide range of therapeutic applications, such as anti-inflammatory, antioxidant, antidiabetic, hepatoprotective, antibacterial, and anticancer effects against various cancers, but has poor solubility and low bioavailability. Objective: To improve curcumin’s bioavailability, plasma concentration, and cellular permeability processes. The nanocurcumin approach over curcumin has been proven appropriate for encapsulating or loading curcumin (nanocurcumin) to increase its therapeutic potential. Conclusion: Though incorporating curcumin into nanocurcumin form may be a viable method for overcoming its intrinsic limitations, and there are reasonable concerns regarding its toxicological safety once it enters biological pathways. This review article mainly highlights the therapeutic benefits of nanocurcumin over curcumin.
Theoretical Analysis of Peak Voltage of Inverted F-shaped Antenna

The goal of this paper presents a simulation method to measure the Peak Voltage of Inverted F-shaped Antenna (IFA) to guide multi-band tunable cellular antenna design. The result reviews, for the inverted F-shaped antenna, as the distance between tuner and the short end of the antenna increases, the RF voltage across tuner increase as well. The simulation show that peak voltage of IFA antenna can be predicted by frequency domain simulation, thus provide guide line for selecting SOI tuner switch.
Identifying Influential Factors Affecting the Shading of a Solar Panel

Photovoltaic (PV) systems produce less energy when operating under shadings. PV planners need to identify important factors affecting the shadings to forecast power generations in various ambient conditions. Using a case study, we show that overlooking the impact of an environmental factor, herein snowfalls, will result in overestimations in the power forecasting. In this paper, we study the context of the shading from different perspectives and introduce parameters that can affect the duration and severity of shading conditions. To identify key notions of the shading and important factors involved, we implement a literature review and include experts’ knowledge by exploring PV planning tools and conducting a survey in the sector of solar energy. The identified factors can be used to develop a knowledge-based model representing key concepts associated with shading conditions. In addition, the identification of important factors affecting the duration and severity of shading conditions addresses new research domains that need to be explored in the field of PV shading and power estimation.
Strategic Business and IT Alignment: A Prioritized Theory Diagram

Many academic and practitioners' studies have shown that misalignment or lack of alignment between information technology (IT) and business strategies is one of the main reasons why enterprises fail to exploit the full potential of their IT investments. Furthermore, organizations that have accomplished a high degree of alignment are often associated with better business efficiency and effectiveness performance. Consequently, strategic business and IT alignment (SBITA) has consistently been one of the top concerns of the Chief Information Officer (CIO) in an enterprise. Despite these facts, there is little consensus on what SBITA really is; there are few documented theories, concepts and operational approaches for identifying, measuring, improving and maintaining the SBITA level in an enterprise. This paper is based on the strategic alignment model (SAM) proposed by Henderson & Venkatraman in 1993, which is considered one of the most widespread and accepted models among the alignment community. Basically, all later alignment models and consulting practices start from this model. The SAM consists of a set of alignment sub-topics presented partially in figure #3, which have been used for prioritizing the SBITA topic. An extensive literature survey has been carried out and the most relevant and cited references in the field have been categorized according to the sub-topics of the SAM. Doing so provided an indication of how important the alignment community finds the different aspects of SBITA
The Antecedents of Psychological Empowerment and Its Impact towards General Physician Job Performance

BACKGROUND: The emergence of new infectious diseases such as SARS-CoV-2 (Coronavirus Disease 19) creates a burden to the healthcare system especially to the front liners such as medical doctors. The job performance of the general practitioners related to quality of care to SARS-CoV2 patients. AIM: ​​The purpose of this study is to analyze the antecedents of psychological empowerment towards job performance, mediated by service orientation. These antecedents could be seen in hospital perspectives and professional life. METHODS: This is a quantitative survey study using a cross-sectional approach. 185 samples purposively obtained from the general practitioners who work at SARS-CoV-2 Reference Private Hospital in Jakarta and surrounding area. Data collection using online questionnaires and analyzed by SmartPLS 3.3. 3™ . RESULTS: There are nine hypotheses that are supported in this research. The strongest predictor of psychological empowerment is the training opportunities, followed by relationships with fellow doctors and autonomy at work. Psychological empowerment has been proven to have a direct impact on job performance, while service orientation has been found as a mediation in this relationship. CONCLUSION: Psychological empowerment has been proven as an important construct to predict job performance, therefore hospital management has to pay more attention to psychological empowerment for GPs during the pandemic. Training opportunities should be prioritized by the board of directors of the hospitals, they should allocate time and the resources to facilitate the training opportunity. KEYWORDS: Psychological empowerment, service orientation, job performance, general practitioner, SARS-CoV-2 referral private hospital.
Parasitic Surveillance Potentialities Based on a GEO-SAR Illuminator

Synthetic aperture radar systems operating with satellites in geosynchronous orbits (GEO-SAR) can provide a permanent coverage of wide specific areas of the Earth’s surface. As well as for primary applications in remote sensing areas such as soil moisture and deformation monitoring, the wide availability of the signal emitted by a GEO-SAR on a regional scale makes it an appealing illuminator of opportunity for bistatic radars. Different types of receiving-only devices located on or near the Earth could exploit the same signal source, noticeably already conceived for radar purposes, for applications in the framework of both military and civil surveillance. This paper provides an overview of possible parasitic applications enabled by a GEO-SAR illuminator in different operative scenarios, including aerial, ground and maritime surveillance. For each selected scenario, different receiver configurations are proposed, providing an assessment of the achievable performance with discussions about the expected potentialities and challenges. This research aims at serving as a roadmap for designing parasitic systems relying on GEO-SAR signals, and also aims at extending the net of potential users interested in investing in GEO-SAR missions.
Embedded fuzzy logic controller for drying oil filled transformers

Fuzzy logic is a part of artificial intelligence science and provides for control of complex processes, where exact models are not applicable. Such a controller is necessary for the process of drying oil filled transformers. Indeed, this controller needs to deal with a highly nonlinear and time variant process. The development of the controller was fast and the implementation size very small. Its performance proved very robust whilst providing both good dynamical and steady-state behaviour.
Monolithic MESFET distributed baluns based on the distributed amplifier gate-line termination technique

The principles of the distributed amplifier are applied to realize wide-band monolithic distributed baluns. The technique reported here is based on using the gate-line "termination" of a distributed amplifier topology as the noninverting output and the inherent phase inversion property of the metal-semiconductor field-effect transistor (MESFET) to provide the antiphase output from the drain-line. Closed-form expressions are derived for the two output voltage signals and their respective power gains. The theoretical performance of the balun is then examined as a function of the important MESFET parameters and other circuit parameters. Some practical design considerations are given followed by the measured results of two monolithic prototypes. The first is a basic two-section balun, while the second employs a four-section balun with a three-stage positive gain slope preamplifier to compensate for the increase in gate-line loss with frequency. Balun operation over 0.5-20 GHz and 0.5-12 GHz has been demonstrated for the two-section and four-section balun, respectively.
Sex Differences in Incidence, Clinical Characteristics and Outcomes in Children and Young Adults Hospitalized for Clinically Suspected Myocarditis in the Last Ten Years—Data from the MYO-PL Nationwide Database

There is a widespread lack of systematic knowledge about myocarditis in children and young adults in European populations. The MYO-PL nationwide study aimed to evaluate sex differences in the incidence, clinical characteristics, management and outcomes of all young patients with a clinical diagnosis of myocarditis, hospitalized in the last ten years. The study involved data (from the only public healthcare insurer in Poland) of all (n = 3659) patients aged 0–20 years hospitalized for myocarditis in the years 2011–2019. We assessed clinical characteristics, management and five-year outcomes. Males comprised 75.4% of the study population. The standardized incidence rate of myocarditis increased over the last ten years and was, on average, 7.8 and 2.5 (in males and females, respectively). It was the highest (19.5) in males aged 16–20 years. The highest rates of hospital admissions occurred from late autumn to early spring. Most myocarditis-directed diagnostic procedures, including laboratory tests, echocardiography, coronary angiography, cardiac magnetic resonance and endomyocardial biopsy, were performed in a low number of patients, particularly in females. Most patients required rehospitalization for cardiovascular reasons. The results of this large epidemiological study showed an increasing incidence of myocarditis hospitalizations in young patients over last ten years and that it was sex-, age- and season-dependent. Survival in young patients with myocarditis was age- and sex-related and usually it was worse than in the national population. The general management of myocarditis requires significant improvement.
EZH2 Might Affect Macrophage Chemotaxis and Anti-Inflammatory Factors by Regulating CCL2 in Dental Pulp Inflammation

Objectives We aimed to evaluate the effects of Enhancer of Zeste Homolog 2 (EZH2) on regulation of macrophage migration and expression of anti-inflammatory genes in pulpitis. Methods Dental pulp inflammation was verified by histology in rat pulpitis model induced by lipopolysaccharide (LPS). Immunohistochemistry staining was used to detect changes of the expression of EZH2 and tumor necrosis factor alpha (TNF-α) in dental pulp inflammation. The expression of EZH2, CCL2, and cluster of differentiation 68 (CD68: macrophage surface marker) was measured by immunofluorescence staining. The effect of EZH2 on microphage migration was assessed by cell migration assay. The expressions of anti-inflammatory cytokine interleukins (IL-4 and IL-10) and transforming growth factor-β (TGF-β) in HDPCs which were treated by EZH2 complex, CCL2 complex, and CCL2 antibody were examined by quantitative real-time polymerase chain reaction (q-PCR). Results The expression of TNF-α gradually increased in dental pulp inflammation. The expression of EZH2 in dental pulp decreased in 8 hours after LPS stimulation. However, the expression of EZH2 gradually increased in dental pulp after 1 day stimulation by LPS. The results of immunofluorescence staining showed that the expressions of EZH2, CCL2, and CD68 were significantly upregulated in dental pulp inflammation of rats. EZH2 could enhance macrophage migration. And the chemotactic activity of macrophages exposed to supernatants of EZH2-treated HDPCs could be inhibited by CCL2 inhibition. In addition, EZH2 suppressed the expression of anti-inflammatory genes, but CCL2 inhibition reversed the downregulation of anti-inflammatory factors, including IL-4 and TGF-β in HDPCs. Conclusions EZH2 might affect chemotaxis of macrophages and the expression of anti-inflammatory factors by regulating CCL2. EZH2 plays an important role in the development of dental pulp inflammation, and it might be as a target for treatment of pulpitis.
SAFETY ISSUES, ARCING AND FUSING IN PV ARRAYS

The PV industry has been growing rapidly for many years and we are now seeing many new manufacturers coming on line. In more recent years there has been an emphasis on grid connected systems with government subsidy schemes, feed in tariffs and climate change driving industry growth. We have seen inverter manufacturers driving the PV array voltages up to 800 and 1000V d.c. for reasons of efficiency and cost reduction. At the same time the industry has now had products out in the field for an extended period and we are seeing the affects of aging of modules, connectors and wiring system. All of these affects combined are leading to an increase in faults developing in systems. The high d.c. voltages lead to significant stress on insulation systems and the possibility of arcing faults developing. Safety issues for d.c. systems are much more significant than for ac systems because of arcing and corrosion issues that can develop. Fusing is also a very important issue and difficult to craft accurately in PV system so that adequate protection is provided. This paper explores the range of safety issues being faced by the industry and explores the response in terms of module and safety standards and new devices to improve array safety.
The mechanics and impact of hygroscopic swelling of polymeric materials in electronic packaging

A reliable technique for characterising the hygroscopic swelling of materials has been developed and used to characterise a number of packaging materials. The hygro-swelling of these materials, though varing in magnitude, exhibits a common behavior in that it increases with temperature and decreases sharply across T/sub g/. Using this data, hygroscopic stress modeling was performed on leaded and substrate based packages. The hygroscopic stress induced through moisture conditioning was found to be significant compared to the thermal stress during solder reflow. Hygroscopic stress in over-molded wire bond PBGA & molded flip chip PBGA was found to be 1.3 to 1.5 times that of thermal stress. Hygroscopic swelling of the underfill in flip chip PBGA was found to be the main failure driver during autoclave test. Autoclave performance of flip chip PBGA package assembled with different underfills & chips was analysed. Excellent correlation was found between autoclave performance and the hygroscopic swelling characteristics of the underfills.
The Case for Octopus Consciousness: Unity

Birch et al. suggest that consciousness in any animal group must involve four aspects—perceptual richness, evaluative richness (affectivity), integration at one time (unity), and integration across time (temporality). This review will evaluate integration at one time in cephalopods, an area that offers many challenges. First, like most animals with a bilateral nervous system, cephalopods have laterality of brain function, and this challenges unity of function. Second, unlike most mammals, cephalopods have a heavy allocation of both neural and behavioural control to the periphery, especially in the case of octopuses. Third, like all animals, cephalopods gather information through several senses and there can be both unity within and competition between such information, challenging unity. Information gained across all these areas needs to be evaluated both in terms of the methodology used to gather information and the results of the investigation.
Compact Ka-band Frequency Selector Base on Waveguide Slot Antenna and Luneburg Lens

In this paper, a Ka-band frequency selector is proposed by innovatively combining a snake-shaped slow-wave waveguide slot antenna with a Luneburg lens antenna. Slow-wave structure is introduced into the waveguide slot antenna to realize one-dimensional wide-angle scanning. The Luneburg lens antenna receives incident waves from different angles of waveguide slot antennas and converges them on different positions at the edge of the lens. Thus, the separation and selection of frequencies are obtained in space. The simulated results show that in the frequency band of 27 to 34 GHz, the device obtains the beam scanning with the spatial coverages from -50° to 25° and achieves good impedance matching. There is an one-to-one correspondence between the focal point at the edge of Luneburg lens antenna and the operating frequency, which has the application potential for millimeter-wave high-resolution spectrum observation.
Assessment of the environmental situation in Krasnoyarsk using remote sensing data

The data on ground concentrations of aerosols and small gas components (particulate matter PM2.5 and sulfur dioxide NO2) were compared with remote sensing data obtained over the territory of Krasnoyarsk from June to August 2020. We use the air monitoring system of the Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences (KSC SB RAS) to determine the concentration of PM2.5. NO2 concentrations were taken according to the data of the State departmental information and analytical system of the Ministry of Ecology of the region. It is shown that the remote sensing data of the MODIS MAIAC algorithm with a spatial resolution of 1 km can be used to determine the concentration of PM2.5 as an addition to the data obtained by the ground-based air monitoring system of the KSC SB RAS. The MAIAC data were calculated using two different models and are given to the measurement system used in the KSC SB RAS monitoring network. A high coefficient of determination between satellite and ground monitoring data was obtained. Determination coefficients were also obtained for NO2, showing how applicable the remote sensing data are for assessing the environmental situation in Krasnoyarsk.
Blockchain for Cybersecurity: Systematic Literature Review and Classification

ABSTRACT Blockchain has transitioned beyond the hype to reality, as evidenced by the amount of research it has attracted and by its commercial applications. One popular application of blockchain is in cybersecurity, which is the focus of this paper. Specifically, we performed a systematic literature review of blockchain use cases for cybersecurity, while focusing on articles published over the past decade. Based on our analysis of 111 articles, we developed a classification framework using the thematic analysis approach. This classification framework is designed to offer readers a comprehensive perspective of the potential of blockchain to enhance cybersecurity in different contexts. The findings have implications for research and practice.
A novel approach with superresolution and path frequency dependence for channel modeling and application in CDMA cellular system

We study the multipath propagation effects of cellular communication channels. In particular, the frequency dependency of multipath arrivals is characterized using a novel superresolution technique, named the SVD eigen-matrix pencil method, to provide physical insight of the path "history". The conventional broadband model is extended to include the frequency dependence of individual rays which can be used to classify the ray arrivals and to provide physical insight of the channel. This approach may be crucial to the analysis and design of broadband CDMA systems.