Miracle-dz/UniFAR-FTUs huggingface dataset:
Comparison of 3D Bio-Printed IPSC-CMS Derived from Healthy Donors and Patients with HLHS

COMPARISON OF 3D BIO-PRINTED IPSC-CMS DERIVED FROM HEALTHY DONORS AND PATIENTS WITH HLHS Wei He Marquette University, 2022 Hypoplastic left heart syndrome (HLHS) is an extremely severe form of congenital heart disease, but current treatments are not adequate. In order to find more effective treatments, we need to reproduce in vitro the physiological characteristics of cardiomyocytes associated with HLHS. Such a tissue model could be of great help to current medical research, and 3D printing technology is an effective tool for this purpose. We print layer-by-layer cardiomyocytes from both healthy and HLHS patients with laminin-based bioink to form a three-dimensional model. With our 3D cell culture technology, this model can simulate the growth conditions of cardiomyocytes in vivo. Measurements of the 3D printed samples at different time points showed that our model was able to fully demonstrate the differences between healthy and HLHS patients' cardiomyocytes. This result is the basis for more studies in the future, and we hope to build on this foundation with more diverse tests, such as drug tests, which will provide important help in the treatment of HLHS.
Research on impulse purchase of live e-commerce platform users based on ELM model in China

] The purpose of this study is to investigate the influencing factors and mechanism of the characteristics of the live broadcast e-commerce platform and the characteristics of the host on the impulse purchase intention of live broadcast viewers. Based on the ELM model, this study complements existing research content. This study adopts the form of questionnaire survey and conducts empirical analysis using SPSS, AMOS, Mplus and other analysis software for online live broadcast users. The results show that the characteristics of live broadcast platforms have a positive impact on consumers' flow experience and satisfaction; the personal characteristics of anchors have a positive impact on consumers' flow experience and satisfaction; consumers' flow experience and satisfaction have a positive impact on impulse Purchase intention has a positive impact, and flow experience and satisfaction have a mediating effect on the characteristics of the live broadcast platform and the personal characteristics of the host
The in�uence of freezing on the nail withdrawal capacity of Norway Spruce and European Larch wood

Environmental conditions and temperature oscillations can in�uence wood properties. Accordingly, the performance of wood connections such as nails could be affected by freezing and heating temperature. Thus, in the present work, the impact of freezing/heating temperatures on the nail withdrawal power of Norway Spruce (Picea abies (L.) H. Karst. ) and European Larch (Larix decidua Mill.) has been studied. Three types of the wood nail; smooth, helically threaded, and annularly threaded were studied, and two different freezing heating steps have been implemented (-15°C/70°C and − 25°C/70°C). Withdrawal capacity was distinguished on two various anatomical directions; radial and tangential surfaces. The freezing could cause a considerable destructive impact on the nail withdrawal capacity of both wood species. The highest drop has found for smooth nail (A) for larch wood in the tangential direction with 73% and 69% decrease and radial direction, with 70% and 63%, at temperatures − 15°C/70°C and − 25°C/70°C, respectively. Furthermore, spruce wood exhibited a meaningful reduction for both tangential (69% and 63%) and radial (54% and 56%) directions and smooth nail (A), at temperatures − 15°C/70°C and − 25°C/70°C, respectively. The highest reduction was found for annularly threaded nails (C).
Document-Level Machine Translation with Hierarchical Attention

Machine translation (MT) aims to translate texts with minimal human involvement. MT has evolved to generate more comprehensive outputs with less human editing, and the utilization of machine learning methods is pivotal to its success. The purpose of this report was to gain insights into MT technologies in hopes of understanding the shortcomings and strengths of different approaches. This report surveyed and showed experiments on MT technologies, including rule-based MT, statistical MT, neural MT, and neural MT with attention mechanism.
Spatio-Temporal Patterns of European Heat Waves and Their Influence on Vegetation

In this thesis I identify spatio-temporal patterns of European heat waves between 1979 and 2020, cluster them into meaningful families and analyze their influence on vegetation. For this I introduce a novel definition of heat waves, which defines them as phenomena with a spatial and temporal extend. With two clustering algorithms I cluster the detected heat waves temporally by their occurence during the year and spatially by their spatial overlapping. After the detection of these spatio-temporal heat wave clusters I correlate di↵erent heat wave features with normalized di↵erenced vegetation index data anomalies to assess the influence of heat waves on vegetation in di↵erent regions in Europe and during di↵erent seasons of the year. The results reveal interesting insights into the spatio-temporal distribution of heat waves over Europe and suggest an approach on how to detect influences of heat waves on vegetation.
A minimal model of intermittent search in dimension two

We propose and analyse a model of bidimensional search processes, explicitly relying on the widely observed intermittent behaviour of foraging animals, which involves a searcher enjoying minimal orientational and temporal memory skills. We show analytically that, in the case of non-revisitable targets, intermittent strategies can minimize the search time, and therefore constitute real optimal strategies, as opposed to Lévy flights strategy which are optimal only in the particular case of revisitable targets. Two representative modes of target detection are presented, and they allow us to determine which characteristics of the optimal strategy are robust and do not depend on the specific characteristics of detection mechanisms. In particular, our study tends to show that the optimal duration of the ballistic phase is a universal feature of bidimensional intermittent search strategies. Last, by comparing the results of our minimal model to systematic search strategies, we show that if temporal and orientational memory skills speed up the search, they do not change the order of magnitude of the search time.
Designing a Topic-Based Literature Exploration Tool in AR - An exploratory study for neuroscience

The large and increasing amount of scientific literature makes it difficult for researchers to analyse and understand relations between topics even in their specific sub-field. Neuroscience researchers are interested in relations between, for example, anatomical regions of the brain and the diseases that affect them. To explore relations in the extensive body of literature, using the topics themselves rather than individual articles, can provide a higher-level approach. We have created a prototype interactive AR environment to learn more about how topic-based literature browsing might aid researchers in analysing and understanding relations between topics. Given the three-dimensional nature of the brain, we postulate that visualizing neuroscience topics in Augmented Reality would support the exploration of relations between them and thus improve and extend existing literature exploration workflows. We follow a user-centered approach to identify visualization and interaction design requirements. Using an existing analysis of tens of thousands of neuroscience papers, we designed an interactive AR environment to support researchers in finding relations between brain regions and brain diseases that integrates with existing literature review practices. We carried out two qualitative evaluations to verify our design, first with eight neuroscience students as domain experts and then with seven experienced researchers as literature exploration experts. Our analysis of participants' feedback shows that visualizing topics and their relations in the immersive AR environment is clear, understandable and helpful for topic-based literature exploration, specifically, between brain regions and brain diseases. Our AR literature exploration tool has the potential to be used by neuroscientists in their routine literature reviews.
Enhancing the Security of Yioop Discussion Board

Yioop is an open-source web portal that works as a search engine and a discussion board. To function as a wiki system and as a discussion board, Yioop provides groups feature that allows users to create, join and share content with each other. Such a system needs to store and access data, so data security is an important concern. Apart from database security, Yioop generates statistical data that needs to be protected. The security mechanism also covers access restriction to the groups as well as the data shared among group members. While Yioop has a security mechanism in place, the goal for this semester was to extend it by implementing several security measures like differential privacy, secret sharing, and homomorphic encryption. The main objective is to protect user data and make the portal more secure. To that end, the project goals for this semester were to understand the existing security concepts of Yioop as well as explore new encryption techniques that could make data sharing more secure. These techniques will be incorporated in Yioop as part of the project for next semester.
Electroless deposition of silver on aminated graphene oxide coated cotton fabric to develop high-performance electromagnetic interference shielding

Endowing conductive textiles for electromagnetic interference (EMI) shielding with dominant absorption mechanism is highly demanding. In this study, we propose a facile method of silver electroless plating on aminated graphene oxide (NH 2 -GO) and reduced graphene oxide (rGO) based cotton fabric for remarkable EMI shielding performance. The successful formation of silver-plated fabrics was con�rmed by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). EMI shielding performance and surface resistance were studied by vector network analyzer (VNA) and four-probe digital multimeter respectively. Antibacterial activity and hydrophobicity of modi�ed fabrics were also evaluated. Our results showed that all fabrics have good antibacterial activity, and the highest antibacterial activity was shown by silver/rGO fabric about 99.99%. Silver-plated aminated GO-based fabric exhibits low surface resistance and its EMI shielding effectiveness (EMI SE) reaches 49 dB at 7 GHz with 1.2 mm thickness as amination of GO provides more functional groups for silver electroless plating. Moreover, these modi�ed fabrics have higher SE A rather than SE R that verifying the absorption characteristic of material. Thus, the remarkable EMI shielding performance of silver-plated NH 2 -GO fabrics tends to make signi�cant progress in eliminating electromagnetic radiations pollution from our environment.
Financial Performance Measurement of Manufacturing Small and Medium Enterprises in Pretoria, South Africa: A Multiple Exploratory Case Study

- This article focuses on the financial performance measures used by manufacturing small and medium enterprises (SMEs) in Pretoria, South Africa. The objectives were to identify the financial tools that are used by SMEs to measure their financial performance, and recommend improvements (if any) and training interventions that would possibly be needed to measure financial performance successfully. Semi-structured interviews were conducted with SME owners. Most of the respondents use financial ratios when measuring their financial performance, although to a limited extent. None of the respondents use bankruptcy prediction models. SMEs could benefit from using ratios that have been proven to be the best financial measures as well as the ratios that have worked well for most of the participants. Bankruptcy prediction models known to many of the participants as well as financial software packages should also be considered as they might enhance the success rate of SMEs
Inventory Management and Control Systems in Covid-19 Pandemic Era: An Exploratory Study of Selected Health Institutions in Anambra State, Nigeria

- The content and scope of this study explored inventory management and inventory control in selected health institutions in Anambra state. The study adopted survey research design. Inventory management, was measured by reorder level system, periodic review system and economic order quantity model while inventory control, was measured by optimal stock level. Out of a population of 74 drawn from 7 health institutions, Taro Yamane (1967) formula and stratified sampling technique were used to determine the sample size of 66 respondents. The tests of hypotheses were conducted using Chi-Square test and Spearman Ranked Order Correlation Coefficient. The result of the analysis revealed that Re-order Level System, Periodic Review System and Economic Order Quantity Model which are the systems currently in use have statistically significant influence on the optimal stock level of health institutions and pose challenges significant challenges on usage in the COVID-19 pandemic period.
Cross‐sectional scanning tunneling microscopy study of GaAs/AlAs short period superlattices: The influence of growth interrupt on the interfacial structure

We report studies of GaAs/AlAs short period superlattices using cross‐sectional scanning tunneling microscopy. In particular, we investigate the role of growth interrupt time on the resulting interfacial structure. Superlattices with repeated periods of four layers of GaAs and two layers of AlAs are resolved atom by atom. Superlattices grown using a 30 s growth interrupt time are observed while those grown with a 5 s growth interrupt time are not. We also discuss residual effects of the growth interrupt process on layers grown on top of the short‐period superlattice.
The ionization cones in the Seyfert galaxy NGC 5728

We report high-resolution (0″.1) observations of the Seyfert 2 galaxy NGC 5728 with the Hubble Space Telescope. Images have been obtained in the light of [O III] λλ4959, 5007, Hα+[N II] λλ6548, 6583 and green and red continua. The emission-line images reveal a spectacular biconical structure with overall extent 1.8 kpc. The two cones share a common axis and apex. The cones'axis coincides to within ≃3° with that of the one-sided nuclear radio continuum emission but is not aligned with the rotation axis of the galaxy disk. No [O III] and only weak Hα+[N II] emissions are seen at the apex itself, where the continuum is also weak and its color red. These results suggest our line of sight to the cones'apex is obscured or blocked
Handheld portable neutron gamma discrimination spectrometer for environmental detection

A compact and integrated neutron-gamma discrimination spectrometer that could be utilized for personal dosimetry and emergency response is urgently required. In this study, based on a CLYC scintillator coupled to silicon photomultiplier(SiPM) arrays, we designed a stand-alone, hand-held neutron-gamma discrimination spectrometer. After the analog-to-digital converter (ADC) digitizes the analog signal from the detector, the data is transmitted to a FPGA processor for online real-time processing, and then transmitted to a microcontroller through the serial peripheral interface(SPI) protocol, and the current detection result is displayed in real-time on the touch screen. By using the pulse signal discrimination(PSD) method, the spectrometer can simultaneously measure the spectrum of neutron and gamma events, with a resolution of 8.8% (at 1274.5 keV) and excellent linearity. The figure of merit (FOM) is 2.32 with optimized PSD parameters. The experimental results show that the spectrometer integrates the upper computer and detector, with real-time performance, portability and excellent neutron-gamma resolution. Online operation is realized through the touch screen, which greatly facilitates the real-time detection of radiation in the field environment.
EXPERIMENTAL AND THEORETICAL STUDY OF THE FIELD INDUCED PHASE SEPARATION IN ELECTRO- AND MAGNETORHEOLOGICAL SUSPENSIONS

We present here the study of field induced phase separation in E.R. and M.R. fluids. Two thermodynamic models — one for the formation of chais of particles and the other for phase separation are presented and compared with experimental results obtained with two kinds of suspensions. One was made of silica particles in silicone oil and the other was made of magnetic polystyrene particles in water. In the presence of a flow the phase separation occurs with the dense phase forming a regular pattern of stripes. The dependence of the period of these stripes on the intensity of the magnetic field is well reproduced by the same kind of thermodynamic model if we add the effect of normal stresses induced by the shear flow.
Onset of Postural Instability in Parkinson's Disease Depends on Age rather than Disease Duration

Background Postural instability and falls are considered a major factor of impaired quality of life in patients with advanced Parkinson's disease (PD). The knowledge of the time at which postural instability occurs will help to provide the evidence required to introduce fall-prevention strategies at the right time in PD. Objective To investigate whether postural instability of patients with different age at disease onset is associated with age or with disease duration of PD. Methods Patients diagnosed with sporadic PD between 1991 and 2017 and postural instability (according to the International Parkinson and Movement Disorder Society Unified Parkinson's Disease Rating Scale (MDS-UPDRS) part III, item 3.12 postural instability) were included, with strict inclusion criteria including regular follow-ups, agreement on data use, and exclusion of comorbidities affecting the free stand. Results Applying these strict inclusion criteria, we included 106 patients. Those younger than 50 years at PD onset took significantly longer to develop postural instability (n = 23 patients, median: 18.4 years) compared with patients with later onset of PD (50–70 years, n = 66, median: 14.2 years, p < 0.001; and >70 years, n = 17, median: 5.7 years, p < 0.001, Kruskal-Wallis test followed by Dunn's multiple comparisons test). There was no association between total MDS-UPDRS III (as a measure of motor symptom severity) at onset of postural instability. Conclusions In PD, postural instability is primarily associated with the age of the patient and not with disease duration.
Effect of different concentrations of Trolox® in association with docosahexaenoic acid on equine semen freezing

Abstract The aim of this study was to evaluate the association of different concentrations of Trolox® and the addition of a fixed concentration of DHA in the freezing of semen of Mangalarga Marchador stallions. To that end, 16 ejaculates were frozen in the following extenders: E1) BotuCrio® (BC; Control); E2) BC + 50 ngml-1 DHA + 30 µM Trolox® (BCDHA30T); E3) BC + 50 ngml-1 DHA + 40 µM Trolox® (BCDHA40T); E4) BC + 50 ngml-1 DHA + 50 µM Trolox® (BCDHA50T). All the tested extenders were similar in preserving different kinematic parameters, cell functional integrity, compacted DNA, and high and intermediate mitochondrial activity (P>0.05). However, sperm cryopreserved in BCDHA40T showed higher velocities than sperm frozen in the control extender (P<0.05). The 30 µM concentration of Trolox® was worse for sperm motility and the 50 µM concentration of Trolox® did not adequately preserve the structural integrity of the membranes in an extender containing DHA when compared to the BotuCrio® (P<0.05) extender. The use of Trolox® in freezing extenders containing DHA did not maximize the effect of BotuCrio®, except for in the case of sperm velocity parameters when at a concentration of 40 µM.
RADIO-FREQUENCY OBSERVATIONS OF GALACTIC X-RAY SOURCES. II.

Six galactic low-mass X-ray binary stars were surveyed with the VLA at 4.8 GHz to search for objects with morphologies similar to that of Sco X-1. Two objects, 2129+470 and 2142+380 (Cyg X-2) were detected at the 1 mJy level; their radio emission is thermal. Variability in the quiescent radio state has been established for 0620-003. None of the sources exhibited a radio morphology similar to the triple-source structure of Sco X-1.
Association between dietary knowledge and overweight and obesity in Chinese children and adolescents: Evidence from the China Health and Nutrition Survey in 2004–2015

Objective To assess whether dietary knowledge of Chinese children and adolescents and their mothers was associated with childhood and adolescent overweight and obesity. Methods This cross-sectional study obtained data from the China Health and Nutrition Survey (CHNS) between 2004 and 2015. Dietary knowledge of children and adolescents and their mothers was assessed by asking questions and statements on diets, and clustered by K-means clustering. Body mass index (BMI) and waist circumference (WC) were used to evaluate overweight and obesity among children and adolescents. The association of dietary knowledge with childhood and adolescent overweight and obesity was evaluated by multivariate regression analysis, with odds ratios (ORs) and 95% confidence intervals (CIs) calculated. Results A total of 2,338 children and adolescents were included. Children and adolescents with low dietary knowledge were demonstrated to have significantly higher risks of BMI-defined overweight or obesity (OR = 1.66, 95%CI = 1.21–2.28, P = 0.002), and WC-defined obesity (OR = 1.52, 95%CI = 1.12–2.06, P = 0.007) than those with high dietary knowledge. Compared with high dietary knowledge in mothers, low dietary knowledge was associated with significantly elevated risks of BMI-defined overweight or obesity (OR = 1.48, 95%CI = 1.08–2.02, P = 0.014), and WC-defined obesity (OR = 1.59, 95%CI = 1.18–2.16, P = 0.003). Furthermore, significantly increased odds of BMI-defined overweight or obesity and WC-defined non-obesity in children and adolescents were related to low dietary knowledge versus high dietary knowledge of children and adolescents (OR = 1.72, 95%CI = 1.08–2.74, P = 0.023), while there was no association of BMI-defined non-overweight and non-obesity and WC-defined obesity with dietary knowledge among children and adolescents (OR = 1.35, 95%CI = 0.89–2.04, P = 0.161). Additionally, no association was found between dietary knowledge of mothers and BMI-defined overweight or obesity and WC-defined non-obesity among children and adolescents (OR = 1.39, 95%CI = 0.89–2.17, P = 0.155), while low dietary knowledge of mothers was associated with increased odds of BMI-defined non-overweight and non-obesity and WC-defined obesity in children and adolescents (OR = 1.58, 95%CI = 1.03–2.43, P = 0.036). Conclusion Dietary knowledge of children and adolescents and their mothers was associated with childhood and adolescent overweight and obesity. Dietary knowledge of children and adolescents negatively related to the risk of BMI-defined overweight or obesity, and dietary knowledge of mothers to odds of WC-defined obesity.