Miracle-dz/UniFAR-FTUs huggingface dataset:
Circuit Design for Highly Sensitive RF-Powered Wireless Sensor Nodes

Emerging applications such as Internet of Things (IoT), smart buildings and warehouse inventory management are important driving forces behind the development of Wireless Sensor Nodes (WSNs). With future advancements made in the semiconductor industry, these WSNs are expected to become smaller, cheaper, more reliable and with improved functionality. The prospect of energy scavenged WSNs is to eliminate the burden of battery replacement, thereby significantly saving on maintenance costs in large WSN networks. This dissertation focuses on the research, design and implementation of various circuit blocks and the system integration of energy scavenged WSNs used in the aforementioned applications. To select a suitable energy harvester, four different energy harvesting approaches are discussed: vibrational, thermal, photovoltaic and RF. Of these harvesters, it shows that RF-powered WSNs have the distinct advantage over WSNs using other forms of energy harvesting that they are low cost and can operate wirelessly in a large variety of applications, even in cold, dark and static environments. Moreover, additional advantages such as utilizing a dedicated RF source for both energy harvesting as well as the generation of a reference frequency greatly reduces the complexity and power consumption of the WSN.
Analysis of harmony between color and fragrance in lighting environments by the reaction of the orbitofrontal area

This study focuses on the analysis of the cross-modal effects between sight (color) and smell (fragrance). While most previous researches have studied the harmony of color and fragrance using small-field colors such as patches and display stimuli, this study analyzes harmony in lighting environments. In our experiments, we focused on the finding that emotional states manifest themselves in responses in the orbitofrontal cortex and used near-infrared spectroscopy to evaluate orbitofrontal responses. Five different aromas were prepared for fragmentation. Initially, the observers were asked to select the most pleasant and least unpleasant aromas. The two selected aromas were soaked in non-fat cotton cloth and placed in a light-shielding brown bottle, which was used as a scent stimulus. For the lighting environment, 36 different lighting colors were designed using a luminaire consisting of 14 LEDs. The results of the experiment showed that the lighting color that the observers judged to be harmonious by actually smelling the fragrance (sensory color) activated the orbitofrontal cortex more than the lighting color that they judged to be harmonious by recalling the name of the fragrance (imagery color).
Attitudes toward coronavirus disease 2019 vaccination in people with multiple sclerosis

Objective We estimated coronavirus disease 2019 (COVID-19) vaccination rates in the North American Research Committee on Multiple Sclerosis (NARCOMS) population and investigated reasons for vaccine hesitancy. Methods In Spring 2021, we surveyed the NARCOMS participants about COVID-19 vaccinations. Participants reported whether they had received any COVID-19 vaccination; if not, they reported why not. They also reported whether they had received influenza vaccination. Using multivariable logistic regression, we assessed participant characteristics associated with uptake of COVID-19 and influenza vaccines. Results Of 4955 eligible respondents, 3998 (80.7%) were females with a mean (SD) age of 64.0 (9.7) years. Overall, 4165 (84.1%) reported that they had received a COVID-19 vaccine, most often Pfizer-BioNTech and Moderna, and 3723 (75.4%) received a seasonal influenza vaccine. Reasons for not getting the COVID-19 vaccine included possible adverse effects (47.73%), possible lack of efficacy (13.7%), and lack of perceived need (17.1%). Factors associated with receiving the COVID-19 vaccine included receipt of influenza vaccine, older age, higher socioeconomic status, any leisure physical activity, and use of disease-modifying therapy. Conclusion In this older cohort of people with multiple sclerosis, COVID-19 vaccine uptake was high, exceeding uptake of seasonal influenza vaccine. Concerns regarding safety, efficacy, and lack of perceived risk were associated with not obtaining the COVID-19 vaccine.
Acute Mast Cell Leukemia Preceded by Malignant Mediastinal Germ Cell Tumor: A Case Report and Literature Review

Background Mast cell leukemia (MCL) is a highly life-threatening and extremely rare subtype of systemic mastocytosis (SM). MCL often genetically contains one or more somatic mutations, particularly activating mutations of KIT. This study reported on an acute MCL patient who had a rare phenotype and genetic mutants with a history of primary malignant mediastinal germ cell tumor (GCT). Case Presentation A 30-year-old Asian male patient who underwent two rounds of surgery and chemotherapy with a history of primary mediastinal GCT (PM-GCTs) was admitted to our hospital due to persistent chest pain and severe fatigue. The diagnosis of acute MCL was confirmed via morphology analysis and chemical staining of marrow aspirate, as well as via marrow biopsy, with the addition of C-findings that included splenomegaly and cytopenia. The atypical MCs were phenotypically positive for CD117 and CD9 but weakly positive for CD2 and negative for CD25. Next-generation sequencing of the marrow aspirate identified heterozygous mutations in TP53 P301Qfs*44, FLT3 R973X, SETBP1 N272D, and JAK3 I688F, whereas mutations in KIT were not found. Although the initial therapy of corticosteroids, ruxolitinib, and dasatinib-based regimens was effective, he died of acute respiratory distress syndrome after the first cycle of chemotherapy with cladribine and cytarabine. The patient’s survival time was 2.4 months after the initial presentation of MCL. Conclusion In this case, MCL preceded by PM-GCTs had similar clinical symptoms and morphological manifestations but distinctly different genetic profiles than primary MCL. The characteristic morphology of MCL provides the most pivotal evidence that led our diagnosis in the correct direction. A competing hypothesis is that there is a common embryonal cancer stem cell between PM-GCTs and secondary MCL, and the latter is gradually developed in the context of additional “driver mutations”.
Humor and Laughter in Counseling: A Content Analysis of 39 Videorecorded Counseling Sessions

ABSTRACT Humor and laughter have long been considered psychologically beneficial; however, the use of humor in counseling remains controversial. There is a scarcity of empirical studies on the topic, while available studies have yielded conflicting results. A content analysis of 39 video-recorded counseling sessions was conducted to examine the frequency and features of humor. Quantitative results showed that laughter was present in all 39 sessions. Both clients and counselors were shown to initiate humor with similar frequency. However, clients laughed significantly more than counselors. Qualitative results illustrated some documented psychological functions of humor in counseling. The omnipresence of humor and laughter in the dataset and associated benefits and risks, highlights the need for intentional use in counseling, informed by empirical research.
Performance-Enhanced Optical Non-Orthogonal Multiple Access Enabled by Orthogonal Chirp Division Multiplexing

In this paper, we propose a novel optical non-orthogonal multiple access (NOMA) scheme based on orthogonal chirp division multiplexing (OCDM) in a low-cost intensity modulation and direct detection system for passive optical networks (PON). The proposed OCDM-NOMA scheme can effectively improve spectral efficiency and serve more users by multiplexing spectrally overlaid OCDM signals in power domain. Under the advantages of the chirp spread spectrum, the proposed OCDM-NOMA scheme can also enhance the bit error rate (BER) performance compared to NOMA scheme based on orthogonal frequency division multiplexing (OFDM). A 17.8 Gb/s OCDM-NOMA PON transmission over 25 km standard single-mode fiber is experimentally demonstrated. The results show that, when compared to OFDM-NOMA and precoding OFDM-NOMA, OCDM-NOMA can achieve receiver sensitivity gains of 1.3 dB and 0.5 dB for the high-power branch signal, and 1.4 dB and 0.6 dB for the low-power branch signal at a BER of 3.8×10−3. Furthermore, we investigate the feasibility of using higher-order modulation in NOMA technology for the first time to further improve data throughput and spectral efficiency. In a 22.2 Gb/s transmission, the optimal power division ratio is determined, and the transmission performance is investigated. According to the experimental results, OCDM-NOMA with higher-order modulation can be a promising candidate for next-generation PONs.
The Effect of Selenium Nanoparticles versus Royal Jelly against Cisplatin-Induced Testicular Toxicity in Adult Male Albino Rats: A Light and Transmission Electron Microscopic Study

Background and Aim: Cisplatin (Cis) is a highly effective chemotherapeutic agent. However, it produces severe testicular toxicity. It was reported that some antioxidants could overcome this toxicity. Selenium nanoparticles and royal jelly (RJ) were among these reported antioxidants. Therefore, this study was designed to compare these two antioxidants in protecting the testes against Cis-induced toxicity. Materials and Methods: This study was conducted on sixty healthy adult male albino rats (weight: 200–220 g) randomized into six groups, ten animals each. Group I (control), Group II (animals received intragastric Nano Selenium), Group III (animals received intragastric RJ), Group IV (animals received an IP injection of Cis 7 mg/kg), Group V (animals received intragastric Nano Selenium, and Cis injection), and Group VI (animals received intragastric RJ and Cis injection). After 10 days, the animals were sacrificed by cervical decapitation. The testes were weighted, and specimens from the left testis were processed for histological and immunohistochemical techniques, whereas specimens from the right testes were prepared for transmission electron microscopic examination. Results: Cis-treated animals had significantly reduced weight of their testes. Light microscopic examination revealed severe histopathological changes in the germinal epithelium and Leydig cells, confirmed with electron microscopic examination. There was a significant increase in the color area percentage of Caspase-3 immunostaining of the germinal epithelium and Leydig cells, compared to that of the control group. Group II and III were similar to control group. Both Groups V and VI revealed significant preservation compared to the Cis group. Conclusion: Selenium nanoparticles and RJ partially improved testis from Cis-induced toxicity, However, there was no significant difference between both groups.
Melek Digital: Tantangan Guru Saat Pandemi Covid-19

Penelitian ini bertujuan untuk mengidentifikasi kesiapan guru-guru sekolah dasar di Kabupaten Halmahera Utara dalam menghadapi pembelajaran berbasis digital, sekaligus untuk mengidentifikasi kebijakan sekolah terkait dengan pembelajaran berbasis digital di sekolah dasar. Jenis penelitian ini adalah kualitatif deskriptif dengan pendekatan fenomenologi. Pengumpulan data menggunakan teknik wawancara dan observasi. Data dianalisis melalui tahapan reduksi data, display data, interpretasi dan penafsiran data, kemudian penarikan kesimpulan dan verifikasi data. Hasil analisis menunjukkan bahwa kesiapan guru Sekolah Dasar di Halmahera Utara dalam menghadapi pembelajaran berbasis digitalisasi di sekolah dasar dapat diklasifikasikan dalam tiga aspek yaitu aspek sikap dan emosi, aspek pengetahuan, dan aspek keterampilan. Sedangkan untuk kebijakan sekolah diperoleh informasi bahwa untuk menghadapi pembelajaran berbasis digital, pihak melaksanakan tiga hal pokok yaitu persiapan, pelaksanaan dan evaluasi.
An EVP Double-Yield Nonstationary Flow Surface Model for Soft Clay

According to experimental findings, soft clay has compression and shear creep. The goal of the study is to develop an elastic-viscoplastic (EVP) model for the viscous behavior of soft clay. The new EVP model is deduced from the associated flow rule, Yin’s double-yield surface theory, and the critical state soil mechanics. The nonstationary flow surface model with double-yield surface, compared to other existing models, considers the compression and shear creep properties of soft clay. The model parameters can be identified from two sorts of tests (i.e., the general triaxial tests and triaxial rheological tests). Different types of soft clay, such as Tianjin Coastal clay, Shantou dredger fill, and silted soil in front of dam, were tested to verify the accuracy of the constructed model. All comparisons of computed and experimental findings revealed that the new EVP model accurately reflected the time-dependent behaviors of soft clay in both shear and compression creep.
Voltage Stability Index for Distribution Network connected in Loop Configuration

ABSTRACT In power distribution networks, voltage instability can lead to voltage collapse and thus power blackout. A considerable amount of research has been carried out on voltage stability analysis of transmission and radial distribution networks. However, voltage stability analysis considering loop nature of distribution network is largely unaddressed. In this paper, a simplistic analytical approach is proposed, based on circuit analysis and famous biquadratic method to evaluate voltage stability of loop distribution networks in terms of voltage stability index (VSI). This work derives mathematical expressions for VSI of loop configuration for two realistic cases. The performance of proposed VSI is initially evaluated for Korean Electric Power Corporation distribution network. Benchmark analysis has been conducted on IEEE 69 bus test distribution networks to demonstrate the validity of the proposed approach in comparison with relevant works. The proposed approach is also applied for distributed generation placement and faults identification analysis. The results demonstrate the performance improvement in VSI of loop-based distribution networks which are expected to be useful for practical applications of future smart grids.
Perceptual–Cognitive Expertise in Law Enforcement: An Object-Identification Task

The few perceptual–cognitive expertise and deception studies in the domain of law enforcement have yet to examine perceptual–cognitive expertise differences of police trainees and police officers. The current study uses methods from the perceptual–cognitive expertise and deception models. Participants watched temporally occluded videos of actors honestly drawing a weapon and deceptively drawing a non-weapon from a concealed location on their body. Participants determined if the actor was holding a weapon or a non-weapon. Using signal-detection metrics—sensitivity and response bias—we did not find evidence of perceptual–cognitive expertise; performance measures did not differ significantly between police trainees and experienced officers. However, consistent with the hypotheses, we did find that both police trainees and police officers became more sensitive in identifying the object as occlusion points progressed. Additionally, we found that across police trainees and police officers, their response bias became more liberal (i.e., more likely to identify the object as a weapon) as occlusion points progressed. This information has potential impacts for law enforcement practices and additional research.
Influence of Magnet Material Selection on the Design of Slow-Speed Permanent Magnet Synchronous Generators for Wind Applications

This paper analyses the influence of selected magnet materials on the design of slow-speed permanent magnet synchronous generators for use in wind applications. The design procedure, including setting of the initial design parameters of the machine, calculations of machine dimensions, magnetic flux in the air-gap, and electrical parameters as well as the selection criteria of permanent magnets for the use in the permanent magnet generator is presented. According to the calculations, a generator prototype is constructed with four different rotors, where different magnetic materials are used. The machine is tested using the different rotors and the influence of the different magnetic materials to the output characteristics of the machine is shown. The price to power analysis of the used magnetic materials is provided and conclusions for the possible machine design benefits and drawbacks are presented in the study. The investigations carried out show that NdFeB magnets are the preferred ones in terms of the performance and weight reduction, whereas there are considerable alternatives available, if the design and performance criteria are flexible. DOI: http://dx.doi. org/10.5755/j01.eie. 23.1. 17581
Cognitive Impairment in a Complex Family With AAGGG and ACAGG Repeat Expansions in RFC1 Detected by ExpansionHunter Denovo

Background and Objectives We investigated the genetic basis and brain metabolism and blood flow of a Japanese family with spinocerebellar degeneration (SCD), with multiple affected members for 3 generations. Methods After excluding DNA repeat expansion (RE) of common SCD genes by fragment analysis, we performed whole-exome sequencing (WES) and whole-genome sequencing (WGS). Homozygosity mapping was performed using these data. REs were investigated with WGS data using ExpansionHunter Denovo and Expansion Hunter. Results WES and WGS were unable to identify likely pathogenic variants, and homozygosity mapping failed to narrow down the locus. However, ExpansionHunter Denovo detected REs in intron 2 of the RFC1 gene and led us to the diagnosis of RFC1-related disorders. Subsequent repeat-primed PCR and Southern blot hybridization analyses revealed that 3 of 6 patients and 1 suspected individual had expansions of AAGGG ((AAGGG)exp) and (ACAGG)exp repeats in a compound heterozygous state and 3 had a homozygous (ACAGG)exp. The patients showed a variety of clinical features, including adult-onset ataxia, sensorimotor neuropathy, head tremor, parkinsonism, dystonia, and cognitive impairment. A comparison of previous reports with those of the family in study suggested that motor neuropathy could be a feature of compound heterozygous patients and biallelic (ACAGG)exp patients. Cognitive function tests showed cognitive impairment with a predominance of frontal lobe dysfunction. Examination of MRI, SPECT, and 18F-fluorodeoxyglucose-PET showed clear cortical damage with frontal lobe predominance in 1 case, but no cerebral damage was evident in the other 2 cases. Discussion Our report shows the usefulness of WGS and RE detection tools for SCD of unknown cause. The studied family with RFC1-related disorders included patients with (ACAGG)exp and (AAGGG)exp in a compound heterozygous state and was characterized by motor neuropathy. Based on the results of cognitive function tests and imaging studies, 1 patient presented with cognitive impairment due to frontal lobe metabolic changes, but there were also patients who presented with cognitive impairment without apparent cerebral metabolic or blood flow, suggesting that other factors are also associated with cognitive impairment.
Bilateral cranial nerve 6 palsy in a patient with multiple sclerosis and vitamin D-dependent rickets

ABSTRACT The development of multiple sclerosis (MS) is multifactorial. Elevated levels of vitamin D may lower the risk and reduce relapses by immunomodulatory mechanisms. Conversely, vitamin D-dependent rickets (VDDR), an inheritable form of rickets secondary to impairment in vitamin D synthesis or action, may increase MS risk. This has been described in three patients with VDDR type 1A. Here, we present a patient with VDDR type 2 – unclear if type 2A or 2B based on historical genetic testing – who subsequently developed MS. She presented with 8 weeks of binocular horizontal diplopia and was found to have 8 prism dioptres of esotropia in primary gaze and a mild limitation of abduction in both eyes. Radiological workup was consistent with MS demyelination. She was started on solumedrol infusions, with full resolution of the esotropia and abduction deficits. She has since been transitioned to ocrelizumab with vitamin D supplementation and has not had a relapse to date. It is important to consider MS in patients genetically predisposed to low vitamin D levels or functional impairment, as with VDDR. Vitamin D supplementation can achieve remission in some forms of VDDR, and its role in MS prevention in these patients should be considered. In patients with type 2A or 2B VDDR, who have impairment in receptor function, additional treatment modalities require investigation. Lastly, demyelination is a rare cause of bilateral cranial nerve 6 palsy. This case illustrates the importance of considering MS in cranial nerve palsies, particularly in patients with vitamin D deficiencies or functional impairment.
Dual mediating effects of job stress and gratitude on the relationship between organizational incivility and life satisfaction of child-care teachers: a moderated mediation role of grit

Introduction. Child-care teachers who deal with colleagues, young children and parents are under a lot of stress. In addition, incivility at workplace, which are invisible non-social behaviors, further aggravate stress. Research is needed to relieve stress caused by such organizational incivility. This study tried to elucidate the role of grit in effects of job stress and gratitude on the relationship between organizational incivility and life satisfaction of child-care teachers. Study participants and methods. Subjects of this study were 323 teachers who worked at daycare centers located in S, A, and C cities in Korea. there were 97.8% females and 2.2% males. The most common age group was in the 40s (38.8%), followed by the 50s (24.7%) and 30s (19.9%). For analysis, frequency analysis, reliability analysis, and correlation analysis were performed using SPSS 25.0. Moderated mediation effect was analyzed using PROCESS macro 3.5. 3. Results. First, there were significant correlations among organizational incivility, job stress, gratitude, grit, and life satisfaction. Gratitude and life satisfaction had the highest correlation (r = 0.495, p < 0.01), and followed by the correlation between job stress and organizational incivility (r = 0.436, p < 0.01). Second, a moderated mediation effect of grit on the path from organizational incivility to life satisfaction via job stress and gratitude was verified. The conditional indirect effect of grit on the relationship of organizational incivility → job stress → gratitude → life satisfaction was all significant when grit was low (-.5266, -.0933 ~ -.0207), average (.0000, -.1156 ~ -.0396), and high (.5266, -.1515 ~ -.0471). Conclusions. Therefore, we found grit’s moderated mediation effect which increases gratitude and life satisfaction of child-care teachers with high incivility and job stress at workplace. These research results are significant in that they provided an alternative for improving the quality of childcare services in a situation where life satisfaction of childcare teachers has a high causal relationship with the quality of childcare services. In addition, since the role of grit was verified in this study result, it will be possible to contribute to improving the life satisfaction of childcare teachers and improving childcare service by utilizing the enhancement of grit.
‎Factors associated with coronavirus disease 2019 infection severity among a sample of Lebanese adults: Data from a cross‐sectional study

Identification of factors responsible for severe illness related to coronavirus disease 2019 (COVID‐19) could help in the early management of patients with high risk, especially in developing countries with poor medical care systems. To date, no data have been published concerning the factors associated with COVID‐19 severity in Lebanon. In this study, we aimed at investigating the relation between sociodemographic variables, health status, and the clinical outcomes of COVID‐19 in a sample of Lebanese adults.