Miracle-dz/UniFAR-FTUs huggingface dataset:
Design of a Mars Ascent Vehicle Using HyImpulse’s Hybrid Propulsion

The recent growth in maturity of paraffin-based hybrid propulsion systems reassesses the possibility to design an alternative Mars Ascent Vehicle (MAV) propelled by a European hybrid motor. As part of the Mars Sample Return (MSR) campaign, a Hybrid MAV would present potential advantages over the existent solid concept funded by NASA through offering increased performance, higher thermal resilience, and lower Gross Lift-Off Mass (GLOM). This study looks at the preliminary design of a two-stage European MAV equipped with HyImpulse’s hybrid engine called the Hyplox10. This Hybrid MAV utilizes the advantages inherent to this type of propulsion to propose an alternative MAV concept. After a careful analysis of previous MAV architectures from the literature, the vehicle is sized with all its components such as the propellant tanks and nozzle, and the configuration of the rocket is established. A detailed design of the primary structure is addressed. This is followed by a Finite Element Analysis (FEA), evaluating the structural integrity under the challenging conditions of Entry, Descent, and Landing (EDL) on Mars, considering both static and dynamic analyses. The outcome is a Hybrid MAV design that demonstrates feasibility and resilience in the harsh Martian environment, boasting a GLOM of less than 300 kg.
New occurrences and a new genus and species of ‘Toothless’ Odontasteridae (Asteroidea) from Australian waters

– Odontasteridae (Asteroidea) are important members of Antarctic faunas. Less well-known are odontasterid species present outside of high-latitudes, which occur primarily in the deep-sea. Multiple new odontasterids were identified from deep-sea settings in Australian waters, including a new genus and species, Marshastra loisetteae gen. nov. sp. nov., from the shelf off Western Australia, and Hoplaster oloughlini sp. nov. from Tasmania and the south Pacific region. A phylogeny of Hoplaster suggests diversification from a Southern Hemisphere setting into the Atlantic and northward as well as across Tasmanian seamounts, indicating diversification into deep-sea habitats from shallower waters.
Home-ownership and unemployment: revisiting the Oswald hypothesis from a regional heterogeneity perspective

Home-ownership may create both positive and negative externalities. As an example of a negative externality, the so-called Oswald hypothesis suggests that a high home-ownership rate creates frictions in the economy and thus increases the unemployment rate. We approach this hypothesis from a novel perspective by taking into account regional differences in population density and dwelling composition. Using municipality-level panel data, we find that although the phenomenon identified by the Oswald hypothesis may not be omnipresent, it may manifest itself, particularly in semi-urban areas where the share of large ownership dwellings is high. We also find that in-migration to these areas is lower, which is consistent with the view that the home-ownership rate may affect migration flows and, thus, economic dynamics.
Assessment of performance and confidence level of simulation based clinical examination of respiratory system in undergraduate medical students of a medical college: a comparative cross-sectional study

Introduction: Students in the preclinical phase have adequate clinical exposure to normal physiological findings of clinical examinations performed in healthy peers but do not have exposure to pathological findings other than theoretical knowledge, which is challenging for students during the clinical phase of curricula in examining actual patients. Simulation based medical education (SBME) has recently emerged to address this gap. This study aimed to assess performance and confidence level of simulation based clinical examination of respiratory system in preclinical undergraduate medical students of a medical college. Methods: A comparative cross-sectional study was conducted in the Department of Human Physiology of Medical College. All second year medical students using purposive sampling were taken. Students were divided into three groups and subdivided into six subgroups and each subgroup carried out examination in either healthy subjects or both healthy subjects and manikin. Predesigned proforma was used for assessment of students and the clinical examination process was invigilated by certified physiologists. Results: Students who received both simulation and conventional tutoring methods were able to accurately identify all lung sounds better as compared to those with conventional tutoring with the percentage difference being maximum in identifying vesicular (29 vs 6), stridor (28 vs 6), and bronchial (25 vs 6) breath sounds and least in identifying coarse crackles (3 vs 2). Majority (39 out of 41) of the students receiving SBME of respiratory system were satisfied with the simulation based practice and 34 of those students were even confident on clinical examination. Conclusion: SBME increases performance status and confidence level in medical students. A practical curriculum can be planned to incorporate simulation based clinical examination in preclinical medical students in practical sessions.
Long non-coding RNA expression in PBMCs of patients with active pulmonary tuberculosis

Purpose Mycobacterium tuberculosis (Mtb) infection is the primary cause of the chronic infectious illness tuberculosis (TB). Long non-coding RNAs (lncRNAs) are functional RNA molecules that cannot be translated into proteins and play a crucial role in regulating the immune system’s innate and adaptive responses. It has been demonstrated that the dysregulation of lncRNA expression is associated with various human diseases. However, the mechanism underlying the involvement of so many lncRNAs in the immune response to TB infection remains unclear. The objective of our current study was to identify a number of significantly differentially expressed lncRNAs in peripheral blood mononuclear cells (PBMCs) from TB patients and to select the most indicative lncRNAs as potential biomarkers for active pulmonary tuberculosis. Methods Microarray analysis was performed to determine the lncRNA and mRNA expression profiles in TB patients using a case-control model. The differentially expressed lncRNAs were subjected to gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis to investigate potential roles and pathways associated with the pathogenesis of TB infection, and to screen lncRNAs specifically linked to TB infection. Using real-time fluorescence quantitative PCR (QRT-PCR), specific lncRNAs were identified in TB patients and latent infections. Results Our findings revealed that various signaling pathways were differentially expressed in TB-infected individuals, suggesting a potential role for lncRNAs in the immunological responses driven by TB infection. This study provides crucial guidelines for future functional research. Upregulated lncRNAs were mainly enriched in Neutrophil extracellular trap formation and Chemokine signaling pathways, while downregulated lncRNAs were enriched in Neuroactive ligand-receptor interaction and Cushing syndrome in TB PBMCs. Furthermore, we found that lnc-XPNPEP1-5, lnc-CASKIN2-2, lnc-HSPA13-6, lnc-CLIC5-1, and LINC02502 were significantly downregulated in TB-infected patients, while LINC00528, lnc-SLC45A4-3, and LINC00926 were significantly upregulated in TB patients and latent infections. These eight lncRNAs, identified as novel biological marker candidates for diagnosing TB infection, were validated by real-time fluorescence quantitative PCR (QRT-PCR). Conclusion The abnormally expressed lncRNAs identified in this research may provide crucial information for understanding the pathophysiological characteristics of TB patients and the dysfunction of PBMCs. Our findings reveal potential targets for early TB diagnosis and therapy, as well as offer new insights into the mechanisms underlying TB infection.
Nutrient and Growth Response of Fagus sylvatica L. Saplings to Drought Is Modified by Fertilisation

The increased frequency of climate change-induced droughts poses a survival challenge for forest trees, particularly for the common beech (Fagus sylvatica L.). Drought conditions adversely affect water supply and nutrient uptake, yet there is limited understanding of the intricate interplay between nutrient availability and drought stress on the physiology, growth, and biomass accumulation in young trees. We aimed to address this knowledge gap by examining the effects of irrigation and fertilisation and their interaction with various parameters in common beech saplings, including foliar and root N, P, and K concentrations; height and diameter increments; and aboveground and belowground biomass production. Our findings revealed that a higher fertilisation dose increased nutrient availability, also partially mitigating immediate drought impacts on foliar N concentrations. Also, higher fertilisation supported the post-drought recovery of foliar phosphorus levels in saplings. Prolonged drought affected nitrogen and potassium foliar concentrations, illustrating the lasting physiological impact of drought on beech trees. While drought-stressed beech saplings exhibited reduced height increment and biomass production, increased nutrient availability positively impacted root collar diameters. These insights have potential implications for forest management practices, afforestation strategies, and our broader understanding of the ecological consequences of climate change on forests.
Skin Bioimpedance Analysis to Determine Cellular Integrity by Phase Angle in Women with Fibromyalgia: A Cross-Sectional Study

Oxidative stress has been proposed as a significant part of the pathogenesis of fibromyalgia, and the phase angle in bioelectrical impedance analysis has been explored as a potential technique to screen oxidative abnormalities. This study recruited 35 women with fibromyalgia and 35 healthy women, who underwent bioelectrical impedance analysis and maximum isometric handgrip strength tests. Women with fibromyalgia showed lower bilateral handgrip strength (right hand: 16.39 ± 5.87 vs. 27.53 ± 4.09, p < 0.001; left hand: 16.31 ± 5.51 vs. 27.61 ± 4.14, p < 0.001), as well as higher body fat mass (27.14 ± 10.21 vs. 19.94 ± 7.25, p = 0.002), body fat percentage (37.80 ± 8.32 vs. 30.63 ± 7.77, p < 0.001), and visceral fat area (136.76 ± 55.31 vs. 91.65 ± 42.04, p < 0.01) compared with healthy women. There was no statistically significant difference in muscle mass between groups, but women with fibromyalgia showed lower phase angles in all body regions when compared with healthy control women (right arm: 4.42 ± 0.51 vs. 4.97 ± 0.48, p < 0.01; left arm: 4.23 ± 0.48 vs. 4.78 ± 0.50, p < 0.001; trunk: 5.62 ± 0.77 vs. 6.78 ± 0.84, p < 0.001; right leg: 5.28 ± 0.56 vs. 5.81 ± 0.60, p < 0.001; left leg: 5.07 ± 0.51 vs. 5.69 ± 0.58, p < 0.001; whole body: 4.81 ± 0.47 vs. 5.39 ± 0.49, p < 0.001). Moreover, whole-body phase-angle reduction was only predicted by the presence of fibromyalgia (R2 = 0.264; β = 0.639; F(1,68) = 24.411; p < 0.001). Our study revealed significantly lower phase angle values, lower handgrip strength, and higher fat levels in women with fibromyalgia compared to healthy controls, which are data of clinical relevance when dealing with such patients.
The impact of ASCAT winds in storm cases using the HARMONIE model system EUMETSAT Fellowship Programme: First year report

Abstract Scatterometer winds have a potential to improve forecasting of severe weather events byimproving the initial state of atmosphere through data assimilation. Within the EUMETSATfellowship project, Advanced Scatterometer (ASCAT) ocean surface wind data from MetOp-A and MetOp-B satellites are applied in the 3D-Var data assimilation system available inthe high-resolution HARMONIE model used at the Norwegian Meteorological Institute. TheASCAT wind data assimilation demonstrates a slight positive impact on forecasting meansea level pressure (MSLP) at the forecast lengths of 3-21 hours for a selected severe stormcase. Upper levels show a slight improvement on the 24-h forecast of wind speed at 850hPa, temperature at 700 hPa and speciﬁc humidity at 500 hPa. Other surface variables orthe upper atmosphere do not experience signiﬁcant changes. The ﬁrst attempt to optimisethe use of ASCAT data by reducing the thinning distance further improves the averageveriﬁcation scores slightly for MSLP. The reduced thinning distance applied in a polar lowcase clearly improves the MSLP at the time of the polar low event, even though ASCATdata do not enhance the statistics averaged over the whole simulation period in this case.This limited set of experiments were cases where we found data assimilation of ASCAT tobe beneﬁcial for forecasting of storms.
Block Compressive Sensing for Solder Joint Images With Wavelet Packet Thresholding

This paper provides a novel method that can achieve better results in solder joint imagery compression and reconstruction. Wavelet packet decomposition is used to generate some frequency coefficients of images. The higher and lower frequency coefficients of the reconstruction signal are used separately to improve the reconstruction performance. A threshold that only relates to the higher frequency coefficients is defined to remove the noise in the reconstruction result in each iteration. A new control factor is further defined to control the threshold value. The control factor relates to the wavelet packet low-frequency coefficients and is updated by the wavelet packet low-frequency coefficients in each iteration. The experimental results reveal that the proposed algorithm is able to improve the performance in terms of peak signal-to-noise ratio (PSNR) and structural similarity (SSIM) compared with classical algorithms in reconstruction of different types of solder joint images. When the sample rate is increased, the proposed method improves the reconstruction results and maintains low computational cost. The proposed algorithm can retain more image structure and achieve better results than some common methods.
Low Risk Sharing with Many Assets

Classical contributions in international macroeconomics rely on goods-market mechanisms to reconcile the cyclicality of real exchange rates when financial markets are incomplete. However, cross-border trade in one domestic and one foreign-currency-denominated risk-free asset prohibits these mechanisms from breaking the pattern consistent with complete markets. In this paper, we characterize how goods markets drive exchange rate cyclicality, taking into account trade in risk-free and/or risky assets. We show that goods-market mechanisms come back into play, even when there is cross-border trade in two risk-free assets, as long as we allow for empirically plausible heterogeneity in the stochastic discount factors of domestic marginal investors.
The Effect of Financial Performance on The Tobin's Q Value of Company Investment

This study aims to provide To explain the impact of financial performance, corporate social responsibility and good corporate governance on firm value. Companies that sell their shares to the public by going public must have a good picture. A good picture is necessary to gain the trust of investors. Companies in an effort to gain the trust of investors will provide reliable information. This information describes the character of the company, especially regarding financial performance. This study used a descriptive associative quantitative research method. To determine the effect of firm value used regression analysis techniques. From the research results there is a significant influence between financial performance on firm value, this occurs due to the Efficient Market Semi Strong Hypothesis. Based on the results of the discussion that has been put forward, the conclusion in this study is simultaneous that there is a significant influence between financial performance, corporate social responsibility, good corporate governance on firm value ratio expressed by the Tobin's Q, when investing in companies that are included in the LQ-45 stock indexer in Indonesia, list namely the best stock rating index in Indonesia. The limitation in this study is that the measurement for company value is to use Tobin's Q, which is calculated based on the market value/price of a company divided by the company's asset value. Measurement of company value is carried out for a years. The results of this research for the industrial world can be used as a source of information about efforts in implementing financial performance on firm value with CSR disclosure and good corporate governance (GCG) as intervening variables. And it is hoped that it can provide useful information for readers, especially investors, potential investors, and capital market authority bodies regarding the relevance of CSR information disclosure and good corporate governance in company annual reports with firm value and financial performance.
Strategies for the High Average zT in the Electron-Doped SnTe

We propose a new strategy to achieve a high average zT in electron-doped SnTe by applying the two-band (TB) and single parabolic band (SPB) models to the electronic transport properties of Sn0.97M0. 03Te ( M = Ga , In, Bi, and Sb) reported in the literature. To achieve a high average zT at temperatures from 300 to 823 K, both zT at 300 and 823 K should be high with a steadily increasing zT over the temperatures. The p-type SnTe is known to have a light valence band and a heavy valence band that are approximately 0.40 eV apart. The Bi-doped SnTe exhibits one of the highest zT among all the other doped samples at 300 K (0.09) and the highest zT at 823 K (0.9), with a steadily increasing zT in between. The TB model confirms the presence of the resonant state at 300 K which is responsible for the high zT at 300 K. The B-factor, which is related to the theoretical maximum zT, calculated by the SPB model indicates a steady increase in zT with increasing temperature. The temperature-dependent B-factor of the Bi-doped SnTe suggests that the initial position of its Fermi level at 300 K calculated by the TB model may be responsible for the temperature coefficient of the B-factor, which determines the zT at 823 K. According to the SPB model, experimental zT of 0.9 of the Bi-doped SnTe can be further improved to 1.03 (14% improvement) at 823 K upon carrier concentration optimization. To achieve a high average zT in SnTe, electron doping with a dopant that forms a resonant state and placing the Fermi level at the light valence band in the vicinity of the heavy valence band maximum are both essential.
Violence against civilians and public support for the state: The moderating role of governance and ideology

When state armed forces engage in violence against civilians during civil wars, why do some citizens continue to support the government? I argue that individuals’ support for the state in such contexts is shaped by the interplay between their perceptions of violence, governance and ideology. Drawing on research concerning motivated reasoning, I suggest that ideological similarity with and effective governance from the state can alleviate the negative effect of military violence against civilians on support for the state and, conversely, augment the positive effect of insurgent abuse on attitudes toward the government. Analysis of seven years of surveys fielded by the Latin American Public Opinion Project in Colombia between 2005 and 2011 suggests that individuals’ responses to victimization by the state’s armed forces depend on whether the individuals are ideologically aligned with the state. More specifically, among people who have an ideology similar to that of the president, military victimization has a less negative effect on support for the armed forces and for the national government. There is also mixed evidence that the quality of state governance, particularly the provision of security from crime, shapes the ways people respond to victimization. While existing studies primarily focus on the effects of either violence or governance on attitudes toward the state, these findings indicate that a more complete theory of why people support governments which engage in violence against civilians requires an understanding of not only violence but also of governance and ideology.
Climate Characteristics of Drought-flood Abrupt Change Events in Huaihe River Basin

Using SPI drought-flood index and historical data of disasters,drought-flood abrupt change events from 1960 to 2009 were chosen.And their temporal and spatial distribution,water features and circulation were analyzed.The results show there is drought-flood abrupt change events happening in 13 years from 1960 to 2009,the frequency is about 4 years.High frequency and precipitation intensity areas are all located in upstream and north regions.Comparing with those in the Yangtze River Basin,the drought-flood abrupt change events are more frequent and stronger in the Huaihe River Basin.The events have the decadal characteristics of first decreasing and later increasing.And the events mainly distribute mainly from late June to early July during a year.The water levels at the various control stations have different response to the events.There is highest raising of water level at the Wangjiaba station with most rapid response to heavy rainfall.As for the cause of circulation,three kinds of typical atmospheric circulation situation can cause drought-flood abrupt change.
Sex moderates the association between age and myelin water fraction in the cingulum and fornix among older adults without dementia

Background Decreasing white matter integrity in limbic pathways including the fornix and cingulum have been reported in Alzheimer’s disease (AD), although underlying mechanisms and potential sex differences remain understudied. We therefore sought to explore sex as a moderator of the effect of age on myelin water fraction (MWF), a measure of myelin content, in older adults without dementia (N = 52). Methods Participants underwent neuropsychological evaluation and 3 T MRI at two research sites. Multicomponent driven equilibrium single pulse observation of T1 and T2 (mcDESPOT) quantified MWF in 3 a priori regions including the fornix, hippocampal cingulum (CgH), and cingulate cingulum (CgC). The California Verbal Learning Test-Second Edition assessed learning and delayed recall. Multiple linear regressions assessed for (1) interactions between age and sex on regional MWF and (2) associations of regional MWF and memory. Results (1) There was a significant age by sex interaction on MWF of the fornix (p = 0.002) and CgC (p = 0.005), but not the CgH (p = 0.192); as age increased, MWF decreased in women but not men. (2) Fornix MWF was associated with both learning and recall (ps < 0.01), but MWF of the two cingulum regions were not (p > 0.05). Results were unchanged when adjusting for hippocampal volume. Conclusion The current work adds to the literature by illuminating sex differences in age-related myelin decline using a measure sensitive to myelin and may help facilitate detection of AD risk for women.