gebhart/patrepeval huggingface dataset:
Rain Removal from Light Field Images with 4D Convolution and Multi-scale Gaussian Process (2022)

Existing deraining methods focus mainly on a single input image. However, with just a single input image, it is extremely difficult to accurately detect and remove rain streaks, in order to restore a rain-free image. In contrast, a light field image (LFI) embeds abundant 3D structure and texture information of the target scene by recording the direction and position of each incident ray via a plenoptic camera. LFIs are becoming popular in the computer vision and graphics communities. However, making full use of the abundant information available from LFIs, such as 2D array of sub-views and the disparity map of each sub-view, for effective rain removal is still a challenging problem. In this paper, we propose a novel method, 4D-MGP-SRRNet, for rain streak removal from LFIs. Our method takes as input all sub-views of a rainy LFI. To make full use of the LFI, it adopts 4D convolutional layers to simultaneously process all sub-views of the LFI. In the pipeline, the rain detection network, MGPDNet, with a novel Multi-scale Self-guided Gaussian Process (MSGP) module is proposed to detect high-resolution rain streaks from all sub-views of the input LFI at multi-scales. Semi-supervised learning is introduced for MSGP to accurately detect rain streaks by training on both virtual-world rainy LFIs and real-world rainy LFIs at multi-scales via computing pseudo ground truths for real-world rain streaks. We then feed all sub-views subtracting the predicted rain streaks into a 4D convolution-based Depth Estimation Residual Network (DERNet) to estimate the depth maps, which are later converted into fog maps. Finally, all sub-views concatenated with the corresponding rain streaks and fog maps are fed into a powerful rainy LFI restoring model based on the adversarial recurrent neural network to progressively eliminate rain streaks and recover the rain-free LFI.
[Heart failure: critical patients]. (2007)

Patients with heart failure in the "real world" are often elderly and with multiple comorbid diseases. These conditions create a dilemma for the physician responsible for the treatment of heart failure and are associated with a substantial underutilization of evidence-based treatments. Clarifying the prognostic impact of comorbidities in heart failure could provide more precise risk stratification and optimize the management of these patients. The negative prognostic impact of concomitant diseases has been shown in several studies: in the TEMISTOCLE study, carried out in Italy on patients hospitalized for heart failure in Internal Medicine and Cardiology wards, the presence of comorbidities was associated with higher in-hospital mortality and prolonged length of stay. In the IN-CHF registry, enrolling out patients with heart failure in a cardiological setting, the rate of coexisting diseases is not very high according to the epidemiological characteristics of this population. Renal impairment, particularly in patients >70 years old, and chronic obstructive pulmonary disease (COPD) are frequent comorbid diseases in heart failure. Renal impairment has been recognized as an independent risk factor for morbidity and mortality in heart failure while the role of COPD is controversial. Patients with renal dysfunction and COPD have largely been excluded from randomized controlled trials for safety reasons, so data are scarce. In the IN-CHF registry the prevalence of elderly patients with renal impairment (serum creatinine > or = 2 mg/dl and age > or = 70 years) is 5.1%; this subgroup of patients has an increased risk for both 1-year death (28.1 vs 11.2%) and hospital admission (34.9 vs 22.5%) compared with the remaining population. The prescription pattern has been evaluated in the last years (2003-2005) and shows that angiotensin system inhibitors (angiotensin-converting enzyme inhibitors and angiotensin receptor blockers) as well as beta-blockers are less prescribed in these patients (78.9 vs 86.1% and 42.2 vs 55.9%, respectively). The prevalence of patients with COPD in the registry was 13.2%: considerable differences in COPD prevalence estimates exist in the general population depending on many factors such as method for diagnosis or lack of agreement on diagnostic criteria. COPD patients were older and with more severe symptoms; with respect to the pharmacological treatment, beta-blockers are significantly less prescribed in COPD patients while a similar proportion of patients are receiving angiotensin system antagonists. The adjusted analysis shows that COPD in not an independent predictor of 1-year mortality in this population while it is independently associated with 1-year all-cause hospitalization. Non-cardiovascular hospital admissions seem to be more influenced by the presence of this comorbidity than cardiovascular admissions.
Fat area and lipid droplet morphology of porcine oocytes during in vitro maturation with trans-10, cis-12 conjugated linoleic acid and forskolin (2012)

Lipid droplets (LD) in porcine oocytes form a dark mass reaching almost all cytoplasm. Herein we investigated changes in fat areas, cytoplasmic tone and LD morphology during in vitro maturation (IVM) of porcine oocytes cultured with 100 μM trans-10, cis-12 conjugated linoleic acid (t10,c12 CLA) or 10 μM forskolin at different time periods. Four groups were constituted: control, excipient, t10,c12 CLA and forskolin, with drugs being supplemented during 44 to 48 h and the initial 22 to 24 h in Experiments 1 and 2, respectively. In Experiment 3, forskolin was supplemented for the first 2 h. Matured oocytes were inseminated with frozen-thawed boar semen and cleavage rate recorded. Before and during IVM, samples of oocytes were evaluated for LD, total and fat areas and fat gray value or for meiotic progression. Results showed that forskolin supplementation during 44 to 48 h or 22 to 24 h inhibits oocyte maturation (exp. 1: forskolin = 5.1 ± 8.0%, control = 72.6 ± 5.0%; exp. 2: forskolin = 24.3 ± 7.4%, control = 71.6 ± 5.6%) and cleavage (exp. 1: forskolin = 0.0 ± 0.0%, control = 55.4 ± 4.1%; exp. 2: forskolin = 8.3 ± 3.3%, control = 54.5 ± 3.0%). Forskolin also reduced oocyte and fat areas. In Experiment 3, forskolin negative effect on oocyte maturation and cleavage disappeared, although minor (P ⩽ 0.03) LD and oocyte fat areas were identified at 22 to 24 h of IVM. Oocytes supplemented with t10,c12 CLA during 44 to 48 h presented a lighter (P ⩽ 0.04) colour tone cytoplasm than those of control and forskolin. In conclusion, t10,c12 CLA and forskolin were capable of modifying the distribution and morphology of cytoplasmic LD during porcine oocyte maturation, thus reducing its lipid content in a time-dependent manner.
Optimal coherent decompositions for radially symmetric optical systems (1997)

In this article, we discuss the application of the optimal coherent decompositions introduced by Pati and Kailath [J. Opt. Soc. Am. A 11, 2438 (1994)] to radially symmetric optical systems. We show that for such systems, both the point spread functions and the pupil functions corresponding to each term in the expansion are separable in polar coordinates. We derive analytical expressions for their angular dependence and an integral equation for the radial dependence. Our results reduce the task of computing optimal coherent decompositions from a two-dimensional integral eigenvalue problem to a one-dimensional one.
Tearing Down Structural Racism and Rebuilding Communities (2006)

ew Orleans's broken levees opened up a key opportunity.They opened up the floodgates to a public conversation long ignored by mainstream media.Why did the broken levees flood so many black homes?Why were so many black people poor, stranded, and unaided by the government?As we tried to make sense of the disturbing pictures of blacks stranded on rooftops in a country where opportunity is supposed to be abundant and racism all but dead, we were forced to reconsider some of our most deeply held assumptions.And as the uncomfortable issue of race forced its way back into the public discourse, we began to ask how the events we were seeing could be explained by race or by poverty.While this is the wrong questionrace and poverty are inextricably linked and cannot be separated-the question itself prompted an opportunity and challenge for us to examine the post-civil rights era dogma of abandonment through "individual responsibility" and inequity through "color blindness."People of color and the poor have been laboring in a society in which many believe that we have transcended our racist past and can blame poverty on personal failure.As we think about racism, we look for the individual engaged in a discreet act or acts; we understand racism as primarily a psychological event located in the mind of a racist actor.Similarly, when we think of poverty we primarily think of either an individual's bad choices or bad luck.These individualist approaches affect not only how we understand issues of race and poverty but also what issues we see and do not see and the solutions that we support.The destruction of New Orleans challenges this individualist frame.But we as a society have no readily accessible alternative collective frame.Here we discuss that alternative.We now have the opportunity collectively to see our fragile infrastructure, weakened by our ideology of government withdrawal from public protection and human investment.We have the opportunity to see how race has been used to create structural arrangements which weaken our ability to protect the public and promote
Effective Factor on Catalysis of Niobium Oxide for Magnesium (2020)

Magnesium is a promising hydrogen storage material but requires an efficient catalyst to enhance the sluggish kinetics of its hydrogen desorption/absorption reactions. Niobium catalysts have been shown to accomplish this, but the effective factors for catalysis on hydrogen desorption/absorption of Mg are not well understood. In order to investigate these aspects, various types of Nb oxides were synthesized and mixed with Mg, and their catalytic properties were investigated. The spray pyrolysis synthesis of Nb oxides at different temperatures produced homogeneous spherical particles with different degrees of crystallinity, while Nb oxide particles synthesized by simple calcination of ammonium niobium oxalate were nonuniform. These Nb oxides show significant catalytic activities for the hydrogen desorption/absorption of Mg, with amorphous oxides being more effective catalyst precursors than crystalline precursors. Metastable, amorphous Nb oxide is more easily converted to the reduced state, which is the catalytically active state for the reactions. In addition, Nb in the deactivated sample is in the oxidized state compared with the initially activated sample, and the catalytically active (reduced) state is recovered by reactions with hydrogen. Based on these findings, it is concluded that the chemical state of Nb is an important factor in catalyzing the desorption/absorption of hydrogen by Mg, and the catalytically active state can be preserved without further treatments.
Ultrastructural studies of the interaction of spectrin with phosphatidylserine liposomes (1986)

Abstract Spectrin was shown previously to interact with phosphatidylserine and phosphatidylethanolamine, which are preferentially localized in the inner half of the membrane lipid bilayer, but this interaction is not well characterized. In the present study we used electron microscopy of rotary-shadowed platinum replicas of spectrin dimer-phosphatidylserine complexes to study the interaction of spectrin with phosphatidylserine vesicles. At a spectrin concentration of 0.6 mg/mL, 60% of spectrin dimers were associated with phosphatidylserine vesicles and at a spectrin concentration of 1.2 mg/mL, some vesicles were crosslinked by spectrin dimers. The length of the protruding segment of spectrin dimer from the liposome edge ranged from 400 to 960A degrees and the contact region to phosphatidylserine extended 272 +/- 144A degrees from either end of the molecule. Therefore, these data are consistent with multiple binding sites to phosphatidylserine throughout the spectrin dimer molecule. Spectrin tetramers, when bound to phosphatidylserine liposomes, extended 1804 +/- 79A degrees from the liposome edge and crosslinked liposomes, suggesting that some of the binding sites to phosphatidylserine vesicles is in the proximity of the tail end of spectrin. The association between spectrin dimers to phosphatidylserine was demonstrated by nondenaturing gel electrophoresis. The complexes were separated into multiple bands with molecular weight of 1.4 X 10(6), 1.8 X 10(6), and 2.3 X 10(6). These bands did not represent self- associated spectrin oligomers, since postincubation treatment with Triton-X-100 dissociated them into spectrin dimers. Furthermore, these spectrin high molecular weight bands, as visualized by Coomassie blue absorbance, closely corresponded to the 14C-phosphatidylserine distribution. These data provide ultrastructural and biochemical evidence that spectrin binds to phosphatidylserine at multiple sites including the tail end region.
Physical Synthesis for CPLD Architectures. (2009)

We think that increased bacterial translocation in cirrhotic patients may contribute to HCC development by causing chronic inflammation, especially in patients with TLR 1 (rs5743551) polymorphism.
Reservoir Simulation of Sulfate-Reducing Bacteria Activity in the Deep Sub-Surface (2006)

Abstract Accurate predictions of reservoir souring due to sulfate-reducing bacteria (SRB) are essential for multi-million dollar decisions on oil field development and materials selection. Laboratory experiments have been conducted to investigate the effects of pressure, salinity, pH, temperature and nutrient availability on various environmental isolates of oilfield SRB. In laboratory tests, high pressures, high salinity, high temperature and extreme pH all inhibited normal growth and H2S generation. The data on growth rates and nutrient consumption at various environmental conditions has been incorporated into reservoir souring models. The availability of sulfate and nutrients can also limit the growth of SRB biomass and the generation of H2S. A 2D souring model has been developed and used in excess of 30 reservoir cases. Within this model, SRB activity occurs in reservoir regions with favourable environmental conditions and H2S is then partitioned between and transported with the reservoir fluids. The 2D model has been used in the simulation of reservoir souring due to seawater injection in the Alba Field, North Sea. Analysis of Alba field and laboratory data indicates that souring predominantly occurs deep within the reservoir in the mixing zone between seawater and formation water. A 3D model is currently being developed that is run in a loosely coupled manner with reservoir simulators. The loose coupling means that there is only a one-way flow of reservoir data (pressures, saturations, etc.) from the reservoir simulation to the souring model. The 3D model is being validated against field data, with a comparison of historical and predicted H2S breakthrough and mass flow rates from production wells. This tool will help operators trying to predict subsurface microbial activity on a large scale.
Phosphorus-Containing Flame Retardants from Biobased Chemicals and Their Application in Polyesters and Epoxy Resins (2019)

Phosphorus-containing flame retardants synthesized from renewable resources have had a lot of impact in recent years. This article outlines the synthesis, characterization and evaluation of these compounds in polyesters and epoxy resins. The different approaches used in producing biobased flame retardant polyesters and epoxy resins are reported. While for the polyesters biomass derived compounds usually are phosphorylated and melt blended with the polymer, biobased flame retardants for epoxy resins are directly incorporated into the polymer structure by a using a phosphorylated biobased monomer or curing agent. Evaluating the efficiency of the flame retardant composites is done by discussing results obtained from UL94 vertical burning, limiting oxygen index (LOI) and cone calorimetry tests. The review ends with an outlook on future development trends of biobased flame retardant systems for polyesters and epoxy resins.
The Effect of Changes in Ownership Structure on Performance: Evidence from the Thrift Industry (1996)

Restrictions on the ownership structure of a public company may harm the company's performance by preventing owners from choosing the best structure. We examine the stock-price performance and ownership structure, before and after the expiration of anti-takeover regulations, of a sample of thrift institutions that converted from mutual to stock ownership. We find that after the anti-takeover provisions expire, firm performance improves significantly, and the portions of the firm owned by managers, noninstitutional outside blockholders, and the firm's employee stock ownership plan increase. Changes in performance are positively associated with changes in ownership by managers and by noninstitutional outside blockholders but negatively associated with changes in ownership by employee stock ownership plans.
Role of platelets in the pathogenesis of delayed injury after subarachnoid hemorrhage (2021)

Aneurysmal subarachnoid hemorrhage (aSAH) patients develop delayed cerebral ischemia and delayed deficits (DCI) within 2 weeks of aneurysm rupture at a rate of approximately 30%. DCI is a major contributor to morbidity and mortality after SAH. The cause of DCI is multi-factorial with contributions from microthrombi, blood vessel constriction, inflammation, and cortical spreading depolarizations. Platelets play central roles in hemostasis, inflammation, and vascular function. Within this review, we examine the potential roles of platelets in microthrombi formation, large artery vasospasm, microvessel constriction, inflammation, and cortical spreading depolarization. Evidence from experimental and clinical studies is provided to support the role(s) of platelets in each pathophysiology which contributes to DCI. The review concludes with a suggestion for future therapeutic targets to prevent DCI after aSAH.
Luteolin Ameliorates Experimental Pulmonary Arterial Hypertension via Suppressing Hippo-YAP/PI3K/AKT Signaling Pathway (2021)

Luteolin is a flavonoid compound with a variety of pharmacological effects. In this study, we explored the effects of luteolin on monocrotaline (MCT) induced rat pulmonary arterial hypertension (PAH) and underlying mechanisms. A rat PAH model was generated through MCT injection. In this model, luteolin improved pulmonary vascular remodeling and right ventricular hypertrophy, meanwhile, luteolin could inhibit the proliferation and migration of pulmonary artery smooth muscle cells induced by platelet-derived growth factor-BB (PDGF-BB) in a dose-dependent manner. Moreover, our results showed that luteolin could downregulate the expression of LATS1 and YAP, decrease YAP nuclear localization, reduce the expression of PI3K, and thereby restrain the phosphorylation of AKT induced by PDGF-BB. In conclusion, luteolin ameliorated experimental PAH, which was at least partly mediated through suppressing HIPPO-YAP/PI3K/AKT signaling pathway. Therefore, luteolin might become a promising candidate for treatment of PAH.
Proceedings of the 9th International Conference on Surface Plasmon Photonics (SPP9) (2020)

The research field of plasmonics is concerned with the interaction of light with free electrons in conducting media, thus, having a natural emphasis on metal nanostructures while now also being explored in several other novel material systems ranging from macromolecules and two-dimensional materials (such as graphene) to doped semiconductors. The field of plasmonics is bridging fundamental research and diverse applications, embracing traditional topics such as sensing as well as emerging ones such as localized heating and hot-electron generation. The synergy of light with nanotechnology is opening a range of application areas important to society. After two decades of explosive growth, plasmonics is still going strong: according to “2019 Research Fronts”, the topic “Plasmonic properties of metal nanostructures” belongs to the top 10 research fronts in physics [1].
Blinking Patterns in Calves and Changes Following Restraint and Disbudding (2021)

Abstract The use of spontaneous eye blink rate [EBR] as a non-invasive stress measure is well documented in humans and is gleaning research attention in animal studies. Thus, this study investigated the EBR patterns and changes associated with two known stressful conditions, crush-restraint and disbudding, in dairy calves. Fifty-four female Holstein dairy calves were studied. EBR patterns were assessed in two separate studies (n = 10 in first study; n = 25 in replicate study) four times daily for 4-5 days. Additionally, the EBR of 19 calves divided into two groups (disbudded group = 13; sham group = 6) was recorded following crush-restraint and disbudding (under anaesthesia)/sham-disbudding (without anaesthesia). EBR was consistent across days and times in the first study but in the replicate study, it varied across days. The disbudded group had lower EBR following crush-restraint but was comparable with the sham group following disbudding. Findings suggest that spontaneous blinking may potentially serve as an instant measure of stress in dairy calves based on the elevations associated with crush-restraint and disbudding. However, blink rates may vary across days, and this should be considered when utilizing this measure to assess stress.
GaInNAs Long-Wavelength Lasers for 1.3-µm-Range Applications (2004)

GaInNAs was proposed and created in 1995. It can be grown pseudomorphically on a GaAs substrate and is a light-emitting material with a bandgap energy that corresponds to the long-wavelength range. By combining GaInNAs with GaAs, an ideal band lineup for laser-diode application is achieved. This chapter presents the application of GaInNAs in long-wavelength laser diodes, especially in the 1.3-µm-range lasers that have already gone on the market.
Circuit modeling of the transmissivity of stacked two-dimensional metallic meshes (2010)

This paper presents a simple analytical circuit-like model to study the transmission of electromagnetic waves through stacked two-dimensional (2-D) conducting meshes. When possible the application of this methodology is very convenient since it provides a straightforward rationale to understand the physical mechanisms behind measured and computed transmission spectra of complex geometries. Also, the disposal of closed-form expressions for the circuit parameters makes the computation effort required by this approach almost negligible. The model is tested by proper comparison with previously obtained numerical and experimental results. The experimental results are explained in terms of the behavior of a finite number of strongly coupled Fabry-Pérot resonators. The number of transmission peaks within a transmission band is equal to the number of resonators. The approximate resonance frequencies of the first and last transmission peaks are obtained from the analysis of an infinite structure of periodically stacked resonators, along with the analytical expressions for the lower and upper limits of the pass-band based on the circuit model.
Estimation of Directional Spectra by ML/ME-Methods (1994)

The paper discusses the statistical Maximum Likelihood (ML) and Entropy (ME) methods for estimation of directional wave spectra. A combined ML/ME method is derived, and a reduced version is shown to have superior properties compared to the Capon ML-method and the Iterative ML-method.