Miracle-dz/UniFAR-FTUs huggingface dataset:
Current induced by a tilted magnetic field in phosphorene under terahertz laser radiation

In this study, we investigate the cyclotron resonance effect in the first-order AC current, magnetic ratchet effect, and second harmonic generation in phosphorene in the presence of a steady tilted magnetic field and under THz laser radiation. We establish that various cyclotron resonances exist in the deduced currents based on the angular frequency of the incoming light. These resonances are dependent on the ωc+ value, a function of the carrier charge, the perpendicular magnetic field, and the effective masses along the armchair or zigzag edges. We discuss the direction and the magnitude of the deduced currents for various radiation polarizations. We compare the results with a zero perpendicular magnetic field. Cyclotron resonance for the first order AC current occurs at ω = ±ωc+ . The deduced current declines if the perpendicular magnetic field is zero. Meanwhile, for the ratchet current, cyclotron resonances occur at ω = ±ωc+ , ω = ±2ωc+ , and radiation helicity affects the deduced current for circularly polarized light. Cyclotron resonance for the second harmonic generation current occurs at ω = ±ωc+ , ω = ±2ωc+ and ω = ±ωc+/2 and the current is stronger compared to the case with no perpendicular magnetic field. As the magnetic field rotates in the plane of anisotropic phosphorene, separate directions are predicted for the second harmonic generation– related current. It is noteworthy that the magnitude of the ratchet and second harmonic generation current are within the same range and comparable to the magnetic ratchet current in monolayer graphene, μA/cm.
Collective Intelligence: Decentralized Learning for Android Malware Detection in IoT with Blockchain

The widespread significance of Android IoT devices is due to its flexibility and hardware support features which revolutionized the digital world by introducing exciting applications almost in all walks of daily life, such as healthcare, smart cities, smart environments, safety, remote sensing, and many more. Such versatile applicability gives incentive for more malware attacks. In this paper, we propose a framework which continuously aggregates multiple user trained models on non-overlapping data into single model. Specifically for malware detection task, (i) we propose a novel user (local) neural network (LNN) which trains on local distribution and (ii) then to assure the model authenticity and quality, we propose a novel smart contract which enable aggregation process over blokchain platform. The LNN model analyzes various static and dynamic features of both malware and benign whereas the smart contract verifies the malicious applications both for uploading and downloading processes in the network using stored aggregated features of local models. In this way, the proposed model not only improves malware detection accuracy using decentralized model network but also model efficacy with blockchain. We evaluate our approach with three state-of-the-art models and performed deep analyses of extracted features of the relative model.
Online Multi-Armed Bandits with Adaptive Inference

During online decision making in Multi-Armed Bandits (MAB), one needs to conduct inference on the true mean reward of each arm based on data collected so far at each step. However, since the arms are adaptively selected--thereby yielding non-iid data--conducting inference accurately is not straightforward. In particular, sample averaging, which is used in the family of UCB and Thompson sampling (TS) algorithms, does not provide a good choice as it suffers from bias and a lack of good statistical properties (e.g. asymptotic normality). Our thesis in this paper is that more sophisticated inference schemes that take into account the adaptive nature of the sequentially collected data can unlock further performance gains, even though both UCB and TS type algorithms are optimal in the worst case. In particular, we propose a variant of TS-style algorithms--which we call doubly adaptive TS--that leverages recent advances in causal inference and adaptively reweights the terms of a doubly robust estimator on the true mean reward of each arm. Through 20 synthetic domain experiments and a semi-synthetic experiment based on data from an A/B test of a web service, we demonstrate that using an adaptive inferential scheme (while still retaining the exploration efficacy of TS) provides clear benefits in online decision making: the proposed DATS algorithm has superior empirical performance to existing baselines (UCB and TS) in terms of regret and sample complexity in identifying the best arm. In addition, we also provide a finite-time regret bound of doubly adaptive TS that matches (up to log factors) those of UCB and TS algorithms, thereby establishing that its improved practical benefits do not come at the expense of worst-case suboptimality.
Political Party Preference of Freshmen University Students and its Association with Student Lifestyle Characteristics and the Influence of 1 Year Public University

Objective: To determine the political party preference of university freshman students the first month and last month of their first year of college and its association with gender, race/ethnicity, demographic and lifestyle factors. Methods: This cross-sectional study consisted of 200 university freshman students (18 or 19 years old) who were enrolled in the first week of September 2018 at the University of Iowa. Students were screened for freshman student status, age between 18-19, and plan to remain on campus next semester. Students who met all inclusion criteria were given informed consent and filled out a questionnaire at enrollment and follow-up. Data were entered using REDCap Cloud software (Encinitas, CA). Comparisons between categorical variables were assessed using Pearson’s Chisquare test. Statistical analyses were performed using SAS version 9.4. Results: Of the 200 freshman students, 73 (36.5%) men and 127 (63.5%) women were enrolled with the majority claiming residence in Iowa (67%). At enrollment 62.9% said they had registered to vote (59.2% men, 65.1% women). The political party preferences were as follows: Republican 31.5% (men 33.8%, women 30.2%), Democrat 39.1% (men 28.2%, women 45.2%), Libertarian 4.1% (men 4.2%, women 4%), Independent 13.7% (men 19.9%, women 11.9%), and none of the above 11.7% (men 16.9%, women 8.7%). At enrollment, there was no significant association between political party preference and gender, race, hometown political preference, nicotine or caffeine exposure, and vegetarian diet. Urban vs. rural hometown had a significant influence on initial political party preference. Conclusion: The majority of freshmen university students had registered to vote. The Democratic party was the highest preferred party, the Libertarian party the lowest preferred, and 11.7% reported no preference. College freshmen were significantly likely to change their political party preference by the end of their freshman year, leaning more towards the Democratic Party. Accepted on March 10, 2021
The association of self-reported physical activity on human sensory long-term potentiation

Exercise has been shown to enhance synaptic plasticity, therefore, potentially affecting memory. While the mechanism(s) responsible for this relationship have been explored in animal models, current research suggests that exercise may possess the ability to induce synaptic long-term potentiation (LTP). Most of the LTP mechanistic work has been conducted in animal models using invasive procedures. For that reason, the purpose of the present experiment was to investigate whether self-reported exercise is related to human sensory LTP-like responses. Nineteen participants (MAGE = 24 years; 52.6% male) completed the study. Long-term potentiation-like responses were measured by incorporating a non-invasive method that assess the change in potentiation of the N1b component produced from the visual stimulus paradigm presented bilaterally in the visual field. Results demonstrated that those with higher levels of moderate-to-vigorous physical activity (MVPA) had a greater N1b change from baseline to the early time period assessment, r = −0.43, p = 0.06. Our findings provide some suggestive evidence of an association between self-reported MVPA and LTP-like responses. Additional work is needed to support that the potentiation of the human sensory N1b component in the observed study is due to the exercise-induced synaptic changes similar to that detailed in prior animal research.
The Incidence of Acute Pulmonary Embolism with COVID-19 Pneumonia in Saudi Arabia: A Retrospective Single-Center Study

Acute pulmonary embolism (APE) is a common and prognostically significant complication of COVID-19 infection. We investigated the clinical characteristics and chest CT findings of COVID-19 positive patients complicated with APE. A retrospective, record-based, case-series study was performed examining 483 patients admitted to King Saud Medical City during the pandemic, from April 2020 to June 2020. Of these, 92 patients who underwent chest CT scans were included in the final analysis. The incidence of APE, clinical presentations, radiological patterns, and patient outcomes were assessed and compared against those for patients without PE. The incidence of APE was 22% [95% confidence interval (95% CI): 19%–39%], detected by chest CT. Men constituted 85.0% of patients, with a mean age of 48.9 ± 16.7 years. For most patients with APE, risk factors for thromboembolism were established but did not differ significantly from those without PE. The mean D-dimer level of 9.1 (range 7.0–10.2) was significantly higher among patients diagnosed with APE (OR: 1.021; 95% CI: 1.012–1.028; P = 0.001) compared with that in patients without PE. Moreover, the mean levels of lactate dehydrogenase (LDH, 628.5; range: 494.0–928.3; OR: 1.002; 95% CI: 1.000–1.003; P = 0.02), C-reactive protein (CRP; 158.5; range: 105.3–204.5; OR: 1.025; 95% CI: 1.015–1.035; P = 0.001), and cardiac troponin (3.5; range; 2.6–3.8; OR: 1.016; 95% CI: 0.971–1.067; P = 0.01) were also significantly higher in patients with APE than those in patients with PE. The chest CT presentations of APE included massive, segmental, and sub-segmental APE. The need for Intensive Care Unit admission was higher among patients diagnosed with APE, who presented a fatality rate of 10%. Our study pointed to the incidence and predictors of APE in COVID-19 patients. High levels of D-dimer, CRP, cardiac troponin, and LDH should alert the clinician to the possibility of APE in COVID-19 patients.
MEA (monoethanolamine) 함침 메조포러스 물질을 이용한 CO2 회수

The present study deals with removal of CO2 using various mesoporous materials impregnated with MEA (monoethanolamine). The mesoporous materials such as MCM-41, MCM-48 and SBA-15 were synthesised and then impregnated with 30, 50 and 70 wt% of MEA, respectively. XRD, FT-IR and SEM were used to evaluate the characterization of those. From the adsorption/desorption experiments for various materials, the adsorption capacity of these materials were found in the order of MCM-41> MCM-48> SBA-15. MCM-41 impregnated with 50 wt% of MEA showed the maximum adsorption capacity of 57.1 mg-CO2/gr-sorbent at 40 ℃. It is nearly 8 times higher than MCM-41 without impregnation of MEA. In the multiple cycle test of 20 times, MCM-41 impregnated with 50 wt% of MEA showed a constant adsorption capacity
Food availability and accessibility indicator of performance of family farms in terms of food and nutritional security

J Biochem Biotech 2021 Volume 4 Issue 2 storage and distribution of goods food [2]. Thus, food production depends on factors such as the modes of exploitation and appropriation of land, the reproduction and selection of plant species, crop rotation, multiplication, management and exploitation of livestock. As a result, there is a large margin of overlap and correlation between the various components of the food system and farms [3]. In addition, the same body stipulates that food availability (stocks) expresses the performance of farms because they are expressed in quantity by the composition of supplies and in quality by the conversion of products into calories, proteins and lipids.
D-cycloserine modulates breathlessness related brain activity over pulmonary rehabilitation

Rationale: For people with Chronic Obstructive Pulmonary Disease (COPD), improvements in breathlessness from pulmonary rehabilitation are neither long lasting nor guaranteed. Previously, we showed that pulmonary rehabilitation induced brain activity changes akin to those seen in exposure based cognitive behavioural therapies (CBT) in other conditions. D-cycloserine is a partial NMDA-receptor agonist which has been shown to enhance CBT. Objectives: Here, we tested whether D-cycloserine would augment the effects of pulmonary rehabilitation on activity in brain areas that process breathlessness expectation. Methods: 72 participants with mild-to-moderate COPD were recruited to a double-blind experimental medicine study running parallel to a pulmonary rehabilitation course. Participants were randomised to 250mg D-cycloserine or matched placebo, administered 15-30 minutes prior to the first four sessions of pulmonary rehabilitation. Brain functional magnetic resonance imaging, self-report questionnaires and clinical measures of respiratory function were collected at three time points: before, during (2-3 weeks) and after pulmonary rehabilitation (6-8 weeks). Measurements: Primary and secondary outcome measures were difference in mean and voxel-wise brain activity across key brain regions of interest. An exploratory analysis determined the interaction with breathlessness-anxiety. Main results: No difference was observed in either primary or secondary outcome measures. However, in the exploratory analysis, D-cycloserine attenuated the relationship between brain activity and breathlessness-anxiety within prefrontal cortex, superior frontal gyrus and precuneus. Conclusions: The observed effects suggest that D-cycloserine augments pulmonary rehabilitation by dampening reactivity to breathlessness cues in brain areas associated with breathlessness expectation and anxiety. This work highlights the opportunity to test brain-active drugs in the context of augmenting behavioural interventions.
A double pedigree reveals genetic but not cultural inheritance of cooperative personalities in wild banded mongooses.

Personality traits, such as the propensity to cooperate, are often inherited from parents to offspring, but the pathway of inheritance is unclear. Traits could be inherited via genetic or parental effects, or culturally via social learning from role models. However, these pathways are difficult to disentangle in natural systems as parents are usually the source of all of these effects. Here, we exploit natural 'cross fostering' in wild banded mongooses to investigate the inheritance of cooperative behaviour. Our analysis of 800 adult helpers over 21 years showed low but significant genetic heritability of cooperative personalities in males but not females. Cross fostering revealed little evidence of cultural heritability: offspring reared by particularly cooperative helpers did not become more cooperative themselves. Our results demonstrate that cooperative personalities are not always highly heritable in wild, and that the basis of behavioural traits can vary within a species (here, by sex).
Computational, chemical profiling and biochemical evaluation of antidiabetic potential of Parkia biglobosa stem bark extract in type 2 model of rats

Abstract The present study investigated the antidiabetic and antioxidant capacity of hydromethanol extract from Parkia biglobosa stem bark (PBSBHM) in fructose-streptozotocin induced type 2 diabetic rats after 28 days of oral administration. Simultaneously, evaluated the phenolic profiles and mineral compositions of crude extract. Molecular docking analysis of protocatechuic acid, the most abundant phenolic acid with potential downstream partners protein kinase A (PKA), protein kinase C (PKC), and Ca2+/calmodulin-dependent protein kinase II (CaMK II), was investigated. The preliminary results showed that PBSBHM crude extract contained 225.2 ± 18.25 mg GAE/g of total phenolic and 99.28 ± 12.3 mg QE/g of total flavonoid. Both protocatechuic and gallic acids were identified as a prominent phenolic compound through HPLC analysis, while vanillic acid was not detected. High mineral composition of K, Mg, P, Ca while Mn and Cr as trace elements were found in PBSBHM by plasma optical emission spectroscopy. PBSBHM extracts showed a significant radical scavenging activity from a therapeutic point of view, a moderate antioxidant potential and improved glucose tolerance after 30 min of glucose loading. PBSBHM extracts significantly attenuated serum glucose level and glycosylated haemoglobin at the tested dosage. However, it elevated the hepatic hexokinase activity and glycogen level compared with the diabetic untreated rats. PBSBHM ameliorates the decreased activity of pancreatic superoxide dismutase, catalase and reduced glutathione but decreased the MDA level. Docking analysis of protocatechuic acid showed a moderate affinity for the target enzymes compared to the standard drugs. Our data showed that the stem bark extract of this botanical has antidiabetic potential and at least in part substantiates its traditional use in the management of diabetes, possibly due to the synergistic interactions of protocatechuic acid with other biologically active components. GRAPHICAL ABSTRACT Communicated by Ramaswamy H. Sarma
Dr. Answer AI for Prostate Cancer: Predicting Biochemical Recurrence Following Radical Prostatectomy

Objectives: To develop a model to predict biochemical recurrence (BCR) after radical prostatectomy (RP), using artificial intelligence (AI) techniques. Patients and Methods: This study collected data from 7,128 patients with prostate cancer (PCa) who received RP at 3 tertiary hospitals. After preprocessing, we used the data of 6,755 cases to generate the BCR prediction model. There were 16 input variables with BCR as the outcome variable. We used a random forest to develop the model. Several sampling techniques were used to address class imbalances. Results: We achieved good performance using a random forest with synthetic minority oversampling technique (SMOTE) using Tomek links, edited nearest neighbors (ENN), and random oversampling: accuracy = 96.59%, recall = 95.49%, precision = 97.66%, F1 score = 96.59%, and ROC AUC = 98.83%. Conclusion: We developed a BCR prediction model for RP. The Dr. Answer AI project, which was developed based on our BCR prediction model, helps physicians and patients to make treatment decisions in the clinical follow-up process as a clinical decision support system.
Trousseau's Syndrome Presenting as Multiple Cerebral Infarctions Caused by Mucin-producing Bladder Micropapillary Urothelial Cancer

We herein report a 70-year-old man with recurrent multiple cerebral infarctions under warfarin therapy who was finally diagnosed with Trousseau's syndrome resulting from advanced bladder cancer. A histological examination of the mesenteric lymph nodes revealed metastasis of micropapillary urothelial cancer with positive mucin markers CA125 and MUC1. Blood examinations also indicated elevated tumor markers, such as CA19-9 and CA125. To our knowledge, this is the first report of Trousseau's syndrome in a patient with bladder micropapillary urothelial cancer in which mucin involvement was clearly proven by histological and serological examinations.
Predictors of cardiovascular events and all‐cause of death in patients with transfusion‐dependent myelodysplastic syndrome

Cardiovascular disease (CVD) involves the second cause of death in low‐risk myelodysplastic syndrome (MDS) population. Prospective study to characterise the CVD and to identify predictors for the combined event (CE) cardiovascular event and/or all‐cause mortality in transfusion dependent low‐risk MDS patients. Thirty‐one patients underwent a cardiac assessment including biomarkers and cardiac magnetic resonance (cMR) with parametric sequences (T1, T2 and T2* mapping) and myocardial deformation by feature tracking (FT) and were analysed for clonal hematopoiesis of indeterminate potential mutations. Cardiac assessment revealed high prevalence of unknown structural heart disease (51% cMR pathological findings). After 2·2 [0·44] years follow‐up, 35·5% of patients suffered the CE: 16% death, 29% cardiovascular event. At multivariate analysis elevated NT‐proBNP ≥ 486pg/ml (HR 96·7; 95%‐CI 1·135–8243; P = 0·044), reduced native T1 time < 983ms (HR 44·8; 95%‐CI 1·235–1623; P = 0·038) and higher left ventricular global longitudinal strain (LV‐GLS) (HR 0·4; 95%‐CI 0·196–0·973; P = 0·043) showed an independent prognostic value. These variables, together with the myocardial T2* time < 20ms, showed an additive prognostic value (Log Rank: 12·4; P = 0·001). In conclusion, low‐risk MDS patients frequently suffer CVD. NT‐proBNP value, native T1 relaxation time and longitudinal strain by FT are independent predictors of poor cardiovascular prognosis, thus, their determination would identify high‐risk patients who could benefit from a cardiac treatment and follow‐up.
Composition and Culture of Eating (CoCu) pregnancy: a new short questionnaire to evaluate diet composition and culture of eating during pregnancy

Abstract Objective: The project aimed to validate a short questionnaire (CoCu pregnancy – Composition and Culture of Eating during pregnancy) and to investigate associations with age and socio-economic status (SES). Design: The questionnaire was developed according to the validated CoCu for children and adolescents containing a diet composition (fourteen items) and a culture of eating part (six items). A Nutritional Health Score (NHS) was calculated based on diet composition (–120 and +120, with higher scores indicating healthier diets). The validity was assessed by comparing answers in CoCu pregnancy with a FFQ. In a subsample (n 97), we assessed the percentage of having chosen the same (or adjacent) response categories in the 24th and 36th week of pregnancy (wp). Setting: Data were collected within the LIFE Child study in Leipzig, Germany. Participants: We evaluated 430 questionnaires of pregnant women (24th wp). Results: The results indicated a healthy diet in the present sample (NHS at 24th wp = 49·74 (95 % CI 47·27, 52·22)). The analyses revealed significant positive correlations between CoCu and FFQ (rho ranging from 0·32 to 0·61). For each food item, >90 % of women had chosen the same (50–60 %) or adjacent response categories in the 24th and 36th wp. The analysis revealed associations of the NHS with age (β = 0·11, P = 0·027), SES (β = 0·21, P < 0·001), snacking (β = –0·24, P < 0·001) and media use (β = –0·18, P < 0·001). Conclusions: The questionnaire represents a useful tool for surveying the diets during pregnancy for research and clinical practice.
Asymmetry of Interhemispheric Connectivity during Rapid Movements of Right and Left Hands: A TMS-EEG Study

Abstract The interhemispheric signal propagation (ISP) obtained by electroencephalography during transcranial magnetic stimulation (TMS) allows for the assessment of the interhemispheric connectivity involved in inhibitory processes. To investigate the functional asymmetry of hemispheres during rapid movement, we compared ISP in the left and right hemispheres during rapid hand movements. In 11 healthy right-handed adults, we delivered TMS to the M1 and recorded ISP from the M1 to the contralateral hemisphere. We found that ISP from the left to right hemisphere during right-hand rapid movement was higher than ISP from the right to left hemisphere during the left-hand rapid movement. These results indicate that the left M1 strongly inhibits the right M1, and that the left hemisphere is dominant for rapid movements as well as sequential movements.