Miracle-dz/UniFAR-FTUs huggingface dataset:
Characterizing and modeling the enhancement of lift and payload capacity resulting from thrust augmentation in a propeller-assisted flapping wing air vehicle

Biologically-inspired flapping wing flight is attractive at low Reynolds numbers and at high angles of attack, where fixed wing flight performance declines precipitously. While the merits of flapping propulsion have been intensely investigated, enhancing flapping propulsion has proven challenging because of hardware constraints and the complexity of the design space. For example, increasing the size of wings generates aerodynamic forces that exceed the limits of actuators used to drive the wings, reducing flapping amplitude at higher frequencies and causing thrust to taper off. Therefore, augmentation of aerodynamic force production from alternative propulsion modes can potentially enhance biologically-inspired flight. In this paper, we explore the use of auxiliary propellers on Robo Raven, an existing flapping wing air vehicle (FWAV), to augment thrust without altering wing design or flapping mechanics. Designing such a platform poses two major challenges. First, potential for negative interaction between the flapping and propeller airflow reducing thrust generation. Second, adding propellers to an existing platform increases platform weight and requires additional power from heavier energy sources for comparable flight time. In this paper, three major findings are reported addressing these challenges. First, locating the propellers behind the flapping wings (i.e. in the wake) exhibits minimal coupling without positional sensitivity for the propeller placement at or below the platform centerline. Second, the additional thrust generated by the platform does increase aerodynamic lift. Third, the increase in aerodynamic lift offsets the higher weight of the platform, significantly improving payload capacity. The effect of varying operational payload and flight time for different mixed mode operating conditions was predicted, and the trade-off between the operational payload and operating conditions for mixed mode propulsion was characterized. Flight tests revealed the improved agility of the platform when used with static placement of the wings for various aerobatic maneuvers, such as gliding, diving, or loops.
Nondifferentiable dynamical systems.: NA

The study of dynamical systems originated: as a. topolbgi — cal analysis method In the field of stability theory concerning autonomous ordinary differential equations. Consequently, much of the research effort has been concentrated inthe. area of differential dynamical systems. The dynamical system is not restricted by definition to differential systems,, and the results presented here were obtained without hypothesizing differentiability of the dynamical system. Some of the results were previously known for the differentiable case and were merely extended to a larger class. Others, were not previously known. The most significant results were that the level surfaces of Lyapunov function for a compact asymptotically stable set in R are orientable (n-1) -dimensional generalized closed manifolds, that every asymptotically stable periodic trajectory in R 3 is tamely imbedded in R 3 ,. and that a periodic dynamical system on a compact 2-manifold is equivalent to an S1 action.
A Fatal Case of Iatrogenic Bilateral Pneumothorax after Acupuncture

We report a case of fatal iatrogenic pneumothorax after acupuncture. A patient with motor neurone disease presented with shortness of breath after acupuncture. Bilateral pneumothoraces were detected. Bilateral chest drains were inserted. However, the patient succumbed 41 days after admission. On reviewing the literature, pneumothorax was not uncommonly seen after acupuncture, and most patients recovered uneventfully. However, fatal cases still happened.
Doctors in Hospitals: Medical Staff Organization and Hospital Performance

When current debates about delivery of health services are resolved, the complex task of implementing the broad policy decisions reached will require assessment of each component of presently existing health services. These include medical practice and hospital performance, which intersect primarily through the medical staff organization. This book attempts to relate the varieties of medical staff structures to the hospital performance in providing direct care to patients (as well as a miscellany of community health services). Performance is conceived as "what the hospital as a social organization does. " In order to put such a study in perspective, the authors describe in several excellent introductory chapters the development of the modern hospital and its organized medical staff, the conflicts that divide them, and the social pressures and external controls that affect the institutions in which physicians work. No single study method can probe hospital-based medical practice as well as the diverse
Level of Presented Antigen Avidity CTL Response Independent of the Cutting Edge: Dendritic Cells Prime a High

CTL that possess a high functional avidity are known to be optimal for the clearance of pathogens in vivo. We have shown that the amount of peptide encountered by a CD8 (cid:1) CTL determines its functional avidity. Notably, in these studies nonprofessional APC were used. However, it is mature dendritic cells (DC) that are predominantly responsible for the activation of naive T cells in vivo. Whether DC also direct dose dependent-differences in avidity is unknown. In this work we examined the ability of mature DC presenting a high vs low level of peptide to generate CTL of distinct avidities. In contrast to what was observed with nonprofessional APC, CTL generated by stimulation with mature DC were of high avidity regardless of the amount of peptide presented. This DC property may promote generation of highly effective CTL that retain plasticity, which would allow the tuning of avidity in the periphery to promote optimal pathogen recognition and clearance. The Journal of Immunology, 2008, 180:
INTRUCTIONS TO AUTHORS FOR THE PREPARATION OF PAPERS

This paper describes the CleanSky 2 project INAFLOWT, studying the use innovative flow control concept, beyond simply pulsed blowing, to control the local flow separation, taking place downstream of the slat cut-out over a generic high lift wing. An Ultra high bypass engine is installed in great proximity to the wing in high lift configuration forcing a wide slat cut-out. This in turn causes local separation. The team of five partners performs a collaborative project dealing with simulations and two scales of wind tunnel experiments. The baseline flow of the small scale experiment has been found to be similar to the one on the large scale experiments, with differences attributed to Reynolds number and wall effects. Steady suction from only nine holes on the inboard side of the engine pylon is capable to deliver significant lift recovery, in agreement with simulations. We present and discuss here the experimental effort and outline the route to the large scale wind tunnel experiment, using steady suction and pulsed blowing, in an attempt to reduce the mass flow requirement and fulfil the performance recovery target. 1. BACKGROUND AND MOTIVATION Fossil fuel is the most common energy source used to power aircraft and as a result engines emit polluting gases that also contribute to global warming. T his fact along with increased use of aviation and the growth of ecological awareness forces the transportation industry to emphasize energy efficiency. One possible remedy is increasing the bypass ratios and lowering the fan pressure ratios of turbofan aircraft engine, reducing the fuel consumption for the same thrust. Ultra-High Bypass Ratio (UHBR) engines are very effective from the fuel consumption aspect and therefore have great potential in civil aviation. On the other hand, the engine's very large diameter leads to a challenging integration with the aircraft wing. UHBR engines positioned much closer to the wing due to the nacelle large diameter. This assembly requires a slat-cut-out in the area where the engine is connected. As a result, the wing experiences a local separation at the wing-engine junction due to the nacelle, pylon and the slat edges (Figure 1). Active flow control (AFC) has great potential to postpone flow separation and reinstate degraded aerodynamic performance. The objective of the INAFLOWT project is to examine different AFC technologies in order to find a solution for the current UHBR engine – slat ends wing integration. The current project follows the AFLONEXT project, in which the same problem was dealt with by pulsed blowing and “synthetic jets”. The main current task is to attempt and reduce the mass flow required by the pulsed jets to overcome the local separation and reinstate performance. Figure 1 Separation on wing due to UHBR engine integration (blue) [1]. The SaOB actuator, that combines steady suction and pulsed blowing, is one possible route to reducing the mass flow requirement while providing similar performance gains [2]. To achieve that goal, a small scale experiment, similar to the large scale test conducted within AFLONEXT, is
ON THE L p -ERROR OF MONOTONICITY CONSTRAINED ESTIMATORS

We aim at estimating a function λ : [ 0 , 1 ] → R , subject to the constraint that it is decreasing (or increasing). We provide a uniﬁed approach for studying the L p -loss of an estimator deﬁned as the slope of a concave (or convex) approximation of an estimator of a primitive of λ , based on n observations. Our main task is to prove that the L p -loss is asymptotically Gaussian with explicit (though unknown) asymptotic mean and variance. We also prove that the local L p -risk at a ﬁxed point and the global L p -risk are of order n − p/ 3 . Applying the results to the density and regression models, we recover and generalize known results about Grenander and Brunk estimators. Also, we obtain new results for the Huang–Wellner estimator of a monotone failure rate in the random censorship model, and for an estimator of the monotone intensity function of an inhomogeneous Poisson process.
OTT_A_257056 8825..8835

1Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, People’s Republic of China; 2Human Genetics Resource Preservation Center of Wuhan University, Wuhan, People’s Republic of China; 3Human Genetics Resource Preservation Center of Hubei Province, Wuhan, People’s Republic of China; 4Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, People’s Republic of China; 5Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing, People’s Republic of China; 6Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, People’s Republic of China
INSTITUTE OF ECONOMIC STUDIES WORKING PAPER SERIES W 07 : 11 November 2007 Worker heterogeneity , new monopsony and training

A worker’s output depends not only on his or her ow n ability but also on that of colleagues, who can facilitate the performance of tasks that each i ndiv dual cannot accomplish on his own. We show that this common-sense observation generates m onopsony power and is sufficient to explain why employers might expend resources on tra i ing employees even when the training is of use to other firms. We show that training will t ake place in better-than-average or ‘good’ firms enjoying greater monopsony power, while ‘bad’ firms will have low-ability workers unlikely to receive much training.
OPTH_A_283655 3691..3697

University Eye Clinic, Faculty of Dental Medicine and Health Care Osijek, Faculty of Medicine Osijek, University Josip Juraj Strossmayer in Osijek, University Hospital “Sveti Duh”, Zagreb, Croatia Background: Inflammation is among the most important mechanisms in the pathogenesis of dry eye disease (DED), triggering the vicious circle of the disease. Reducing inflammation is an important target in dry eye disease treatment. Hydrocortisone is a low-potency corticosteroid with a low ocular penetration potential. Aim: To document the effect of topical preservative-free hydrocortisone 0.335% (PFH, Softacort, Laboratoires Théa, France) on DED. Methods: Retrospective data review of patients with mild to moderate DED, treated with PFH for 15 days. Clinical evaluations at Days 0 and 15 included the assessment of the central precorneal tear film thickness (CPTFT), fluorescein tear breakup time, Schirmer test, corneal grading staining (Oxford schema), ocular surface disease index (OSDI) spatial distribution of the precorneal tear film thickness, intraocular pressure (IOP) and local tolerance. Results: Data from 13 women and 2 men were collected. Mean age±SD was 51±5 years for women and 53±4 years for men. Clinical signs and symptoms significantly (all p<0.05) improved after 15 days of treatment. A significant positive correlation between the percentage of change in left eye CPTFT and that in the contralateral eye CPTFT was observed (p=0.003) as well as for both eyes and the left eye FTBUT (p=0.03). For the percentage of change in OSDI, the only significant correlation was with the percentage of change in right eye and FTBUT (p=0.03). IOP remained unchanged. No adverse events were recorded. Conclusion: This retrospective data review confirms that topical PFH twice daily for 2 weeks significantly improves clinical signs and symptoms in patients with mild to moderate DED with no safety issues.
(2018). Preservation of feather fibers from the Late Cretaceous dinosaur Shuvuuia deserti raises concern about immunohistochemical analyses on fossils. Organic Geochemistry , 125 , 142-151.

White fibers from a Late Cretaceous dinosaur Shuvuuia deserti stained positive for β -keratin antibodies in a 1999 paper, followed by many similar immunological claims for Mesozoic protein in bones and integument. Antibodies recognize protein epitopes derived from its tertiary and quaternary structure, so such results would suggest long polypeptide preservation allowing for sequencing with palaeobiological implications. However, proteins are relatively unstable biomacromolecules that readily hydrolyze and amino acids exhibit predictable instability under diagenetic heat and pressure. Furthermore, antibodies can yield false positives. We reanalyzed a Shuvuuia fiber using focused ion beam scanning electron microscopy, energy-dispersive X-ray spectroscopy, time-of-flight secondary ion mass spectrometry, and laser-stimulated fluorescence imaging, finding it to be inorganic and composed mainly of calcium phosphate. Our findings are inconsistent with any protein or other original organic substance preservation in the Shuvuuia fiber, suggesting that immunohistochemistry may be inappropriate for analyzing fossils due to issues with false positives and a lack of controls.
Impact of Corporate Credit Scoring on Construction Contractors in China

In an attempt to enhance the trustworthiness of contractors and reduce corruption, the Chinese government has launched a construction contractor credit scoring (CCCS) scheme in Beijing to evaluate the compliance and integrity of contractors registered in the construction market. The contribution of this paper to the body of knowledge is to analyze how the incorporation of CCCS may affect general contractors' present and future competitiveness through a case study in China. This paper analyzes the procurement of 158 building projects tendered in Beijing involving 2,071 local general contractors active in the market. The results show that (1) the contractors' CCCS scores are important for being awarded large and mega project contracts; (2) CCCS scores have a generally positive effect on future corporate financial income; and (3) contrary to expectations, the policy does not increase the CCCS of companies. Finally, the changing trend in contractors' CCCS scores is observed to be highly correlated with their initial values (the scores of higher CCCS scoring companies increase faster on average than that of other companies). The final remarks address ways to better implement CCCS schemes in the future and avoid the potential risks involved in their use.
Stimulation-Induced Language Learning 1 Running head: STIMULATION-INDUCED LANGUAGE LEARNING Title: Transcranial direct current stimulation improves novel word recall in healthy adults Authors: Bre-Anna

Anodal transcranial direct current stimulation (atDCS) has demonstrated beneficial effects in the language domain for both healthy and brain damaged individuals. The present study provides evidence for the efficacy of atDCS in improvement of associative lexical learning in healthy adults, by employing a novel word-learning paradigm. Participants underwent single sessions of anodal and sham stimulation applied over the left posterior temporo-parietal junction, while learning ambiguous words paired with corresponding dominant, subordinate, and non-word meanings. The ability to recall each paired word was tested on a Cued-Recall task and the ability to recognize acquired non-words amongst distractors was tested using a Recognition task. The results revealed significant atDCS effects for non-word recall compared to sham stimulation in the Cued-Recall task, whilst average correct reaction times were not significantly different between stimulation conditions for the Recognition task. These results provide direct evidence that atDCS strengthens associative links produced between ambiguous words and non-words during initial word retrieval, indicating that these newly acquired words become integrated within participants’ pre-existing linguistic experience. This study contributes important information on healthy language processing and highlights the efficacy of atDCS in improvement of language recovery in clinical domains. Transcranial direct current stimulation novel in healthy
Design and experiment of an omnidirectional creeping soft robot driven by dielectric elastomer

Soft creeping robots have great potential in fields of search-and-rescue for their excellent body compliance and adaptability in unstructured environments and the capacity of passing through a narrow space. But most of the reported soft creeping robots can only crawl forward or backward except a few ones can swerve using a differential actuation mechanism, the maneuverability of the existing soft creeping robots are generally poor which limits their practical applications. In this paper, we design a soft creeping robot driven by dielectric elastomer (DE) which has the ability of omnidirectional movement. The robot mainly consists of a circular deformable body and six thin feet which are evenly distributed around the body circumference. The robot body is an annular dielectric elastomer actuator (ADEA) made by connecting a six-segment dielectric elastomer minimum energy structure end to end, which has excellent ability of active deformation controlled by applied voltages. The six feet are essentially six paper-based electroadhesion actuators which can achieve adhesion or detachment with the ground. Experimental tests for the active deformation performance of the ADEA are implemented for optimizing design of the robot. Then through activating different DE segments, the ADEA deforms from a circle to an ellipse or some irregular shapes, cooperating actuation with the six electroadhesion actuators the robot realizes free movement towards twelve directions around the plane.
PHOTOLYTIC LIPIDS FROM VISUAL PIGMENTS* BY ALFRED FREDERICK BLISS

Kiihne reported in 1878 that visual purple, the fight-sensitive protein of the vertebrate retinal rods, bleached in the light with the formation of a pigment which he named "visual yellow. " Wald (1935) showed that the yellow pigment of bleached frog retinas could be extracted into chloroform and possessed a m~ximum spectral absorption at about 385 m/z. When treated with the Carr:Price reagent for carotenoids, SbCh, a blue color due to an absorption band at 664 m/z appeared. Wald has named this previously unknown carotenoid "retinene. " Hunter and Hawkins (1944) and Morton and Goodwin (1944) have shown that the oxidation of vitamin A leads to a similar chromogen, and the latter authors therefore suggest that retinene is vitamin A aldehyde. Comparable advances have not been made in the study of daylight vision, the chemistry of which may be regarded as originating in 1937 when Wald reported the existence of a red-sensitive pigment, iodopsin, in the cone-rich retinas of chickens. Its difference absorption spectrum shows a maximum at about 570 m/z in digitonin solution, near the maximum sensitivity of the lightadapted chicken. This suggests that iodopsin is the basic light-sensitive substance of daylight vision. The view that rhodopsin (visual purple) is a carotenoid-protein receives support from the decreased sensitivity of the eye to dim light in cases of vitamin A deficiency. Since the thresholds of both night and color vision are raised in experimental vitamin A deficiency (Hecht and Mandelbaum, 1938) it is of interest to determine whether iodopsin likewise releases retinene on exposure to light.
DoA and DoD Estimation and Hybrid Beamforming for Radar-Aided mmWave MIMO Vehicular Communication Systems

In millimeter wave (mmWave) communications, the feature of relatively large signal absorption and directional transmission render new challenges for wireless communications and signal processing. To further improve the performance of mmWave communications, a novel radar-aided mmWave communication (RAMC) approach is proposed, which can be used in vehicular communications. There are two parts in the proposed RAMC system, including the radar subsystem and the mmWave communication subsystem. In the radar subsystem, the bistatic co-prime multi-input and multi-output (MIMO) arrays are considered. With the radar antenna arrays, both the directions of departure (DoD) and the directions of arrival (DoA) are estimated. Additionally, the compressed sensing (CS)-based method is proposed to obtain the target positions. Using the estimated angle and position information, the channel estimation and feedback link of the mmWave communication subsystem can be eliminated. Moreover, a hybrid beamforming algorithm is proposed in the mmWave communication subsystem, which can overcome the shortage of the analog-only beamforming. Simulation results show that the better estimation performance can be achieved by the bistatic co-prime MIMO arrays than that by the traditional uniform linear arrays (ULA), and with the radar aided, the mmWave communication subsystem can reduce the beam search time, and the cell discovery time is improved significantly.