gebhart/patrepeval huggingface dataset:
Electrochemical Studies of AC/DC Anodized Mg Alloy in NaCl Solution (2004)

The corrosion behavior of a Mg-based alloy, WE43, ac/dc anodized using a waveform involving a final period of current decay in an alkaline silicate solution, has been investigated using electrochemical impedance spectroscopy during exposure to a 0.86 M NaCl solution. The change of the oxide film morphology with immersion time was also examined using scanning electron microscopy. Anodization of the WE43 alloy significantly improves its corrosion resistance and greatly increases the time to pitting in the NaCl solution, which for air-formed films is in the range 2-3 h. By fitting the impedance data to a two-time-constant equivalent circuit and by tracking the open-circuit potential, it is demonstrated that film hydration initially decreases the corrosion resistance, followed by an increase in the resistance due to the gradual conversion of MgO to which leads to partial blocking of the film pores. During this time period, the underlying barrier film is slowly thinned and/or penetrated by chloride ions, consistent with its increasing capacitance and decreasing resistance, ultimately leading to a loss in corrosion resistance. Overall, both the porous and barrier oxide layers contribute to the corrosion protection of WE43, and the higher the voltage and the longer the time of current decay in the latter stages of anodization, the lower the alloy corrosion susceptibility. © 2004 The Electrochemical Society. All rights reserved.
Enzyme Activities Affecting End Product Distribution by Lactobacillus plantarum in Response to Changes in pH and O 2 (1990)

Lactobacillus plantarum catabolic end products changed in response to environmental conditions. While lactate was always the major end product, acetate was produced in alkaline and aerobic environments. Acetoin levels decreased under alkaline conditions. Changes in acetoin dehydrogenase, acetate kinase, NADH oxidase, pyruvate oxidase, and acetate kinase activities correlated with changes in end product distribution.
Relative stability measurements of chromophores in polymer optical waveguide materials (2005)

The successful development of high-performance polymer optical waveguides depends critically on the stability of the materials during device fabrication. Typically, ensuring the stability of the organic chromophores contained in these materials represents the most difficult challenge. We present an overview of the mainly spectrophotometric techniques recently developed in our laboratory that have served as exceptionally useful tools in materials development. In addition, recent results involving the relative stability of various chromophores under exposure to simulated processing conditions are described. These allow for an improved understanding of the effects of variables such as temperature, oxygen concentration, and radiation intensity during fabrication on the performance of polymer optical waveguides.
Differential effects of UV irradiation on nuclear retinoid receptor levels in cultured keratinocytes and melanocytes (2003)

A major risk factor for skin cancer is UV irradiation, which not only damages DNA and other photosensitive compounds like vitamin A, but may also perturb cellular signaling, e.g. via the retinoid receptor system believed to be important for cancer protection. We used cultured normal human keratinocytes and melanocytes to examine the effects of UV irradiation on the expression of the predominant retinoid receptors in the human skin (RARalpha, RARgamma and RXRalpha) and the AP-1 protein c-Jun; mRNA levels were studied by real-time PCR and protein levels by Western blot. In keratinocytes, a single dose of UVB (50 mJ/cm2) caused a rapid drop in the expression of all three receptors (mRNA levels minus 35-50% after 4 h; protein levels minus 20-45% after 8 h), which was followed over the next 40 h by a variable response, leading to full normalization for RARalpha only. In contrast, the levels of c-Jun did not change significantly after UV exposure. In melanocytes, UVB caused a similar drop of the retinoid receptor levels as in keratinocytes but this was soon followed by an increased expression leading to a complete normalization of all receptor levels within 1-3 days. The c-Jun levels in melanocytes increased 1 day after UV exposure and remained high (plus 50%) thereafter. In both cell types, a approximately 3-fold increase in apoptosis (measured by DNA fragmentation) was observed 8-48 h after UVB irradiation. In conclusion, a depletion of vitamin A and retinoid receptors by UV irradiation, together with unchanged or even increased c-Jun levels, might seriously interfere with retinoid signaling and thus promote future tumor development, especially in keratinocytes.
Modeling and Analysis of High Performance L-band Erbium-Doped Fiber Amplifier (EDFA) (2005)

The performances of L-band EDFA are modeled and analyzed, based on C-band EDFA, through variation of pump power, ion concentration and fiber length. The fiber length promises higher performance than others.
Evaluation des potentiels nutritionnels et technologiques de quelques fruits locaux du Sénégal (2011)

La caracterisation physico-chimique, biochimique et nutritionnelle des fruits du baobab (Adansonia digitata), du ditax (Detarium senegalensis), et des calices de bissap (Hibiscus sabdariffa) nous a permis de ressortir leurs enormes potentiels. Le ditax avec 967 mg/100 g de vitamine C est lfun des fruits les plus riches en vitamine C. Avec une teneur en polyphenols totaux superieure a 2500 mg/100 g, la pulpe du fruit du baobab (pain de singe) et les calices de bissap pourraient etre utilises comme antioxydant naturel dans les boissons, les preparations de fruits, les produits laitiers, la confiserie, et autres. Evalue par la methode ORAC, le pouvoir antioxydant de la pulpe du fruit dfAdansonia digitata est important (88 .mol trolox/g). Par ailleurs, le bissap avec des teneurs en anthocyanes de 767 et 967 mg/100 g respectivement pour les varietes THAI et CLT 92, constitue une bonne source de colorant naturel.The physico-chemical, biochemical and nutritional characterization of the baobab fruit (Adansonia digitata), Ditax (Detarium senegalensis) fruit, and calyx of bissap (Hibiscus sabdariffa) has allowed to show highlight their enormous potential. The ditax with 967 mg/100 g of vitamin C is one of the most fruits rich in vitamin C. With a content of polyphenol total exceeds 2500 mg/100 g, the pulp of the baobab fruit (monkey bread) and the calyx of bissap could be used as a natural antioxidant in beverages, fruit preparations, dairy, products, and others. Evaluated by ORAC method, the antioxidant power of the fruit of Adansonia digitata is important (88 &fnof;&Ecirc;mol trolox/g). In addition, Hibiscus sabdariffa with anthocyanins levelsof 767 and 967 mg/100 g respectively for THAI and CLT 92 varieties is a good source of natural dye..
Effectiveness of topical α-Tocopherol Acetate in burn infection treatment. (2019)

Infection following burn injury is critical, especially for patients with large total body surface area burns and in skin graft donor sites. Although various aspects of α-tocopherol acetate (α-TA) beneficial effects on wound healing have been validated, it appears that no study has specifically addressed its antimicrobial potential. The purpose of this study was to explore the therapeutic efficacy of topical application of α-TA in terms of bacterial load reduction. Between January 2018 and June 2018, 20 patients with mid-deep and deep burn wounds were included in the present study (average TBSA approximately 42%, range 25-67%). Patient average age was 47.75 years (range 25-72 years), 8 were male. In each patient two clinically similar areas were identified and treated every 24 hours with topical application of α-TA in the form of Filme Olio® (Group 1) and conventional medication (Group 2). All the patients had positive results for bacterial cultures before treatment. Despite the presence of initial bacterial infection, a quicker reduction of exudates and pain and a progressive and faster bacterial load reduction was observed in Group 1. Negative cultures were obtained after 3 days on average in Group 1 (range 1-6 days) and 8 days in Group 2 (range 5-9 days). This study clearly shows the importance of the therapeutic targeting of infection in the treatment of burns. α-TA may represent a safe, simple and inexpensive method for improving the healing of difficult wounds with local infection.
Aminocyclopentanols as sugar mimics. Synthesis from unsaturated bicyclic lactones by Overman rearrangement (2007)

Bicyclic cyclopentane lactones, prepared from bromodeoxyaldonolactones, were transformed into aminocyclopentanols with an Overman rearrangement as the key step. Two of the compounds prepared, 7 and 19, were found to be good inhibitors of jack bean alpha-mannosidase and beta-D-N-acetylglucosaminidase, respectively.
Doxycycline inhibits α-synuclein-associated pathologies in vitro and in vivo (2021)

Parkinson's disease (PD) and dementia with Lewy bodies (DLB) are neurodegenerative disorders characterized by the misfolding and aggregation of alpha-synuclein (aSyn). Doxycycline, a tetracyclic antibiotic shows neuroprotective effects, initially proposed to be due to its anti-inflammatory properties. More recently, an additional mechanism by which doxycycline may exert its neuroprotective effects has been proposed as it has been shown that it inhibits amyloid aggregation. Here, we studied the effects of doxycycline on aSyn aggregation in vivo, in vitro and in a cell free system using real-time quaking induced conversion (RT-QuiC). Using H4, SH-SY5Y and HEK293 cells, we found that doxycycline decreases the number and size of aSyn aggregates in cells. In addition, doxycycline inhibits the aggregation and seeding of recombinant aSyn, and attenuates the production of mitochondrial-derived reactive oxygen species. Finally, we found that doxycycline induces a cellular redistribution of aggregates in a C.elegans animal model of PD, an effect that is associated with a recovery of dopaminergic function. In summary, we provide strong evidence that doxycycline treatment may be an effective strategy against synucleinopathies.
Characterization of Laser-Annealed Magnetic Garnet Films by Scanning Probe Microscopy (1997)

Surface damage and magnetic structures in laser-annealed magnetic garnet films investigated by the use of scanning probe microscopes, were i.e., Atomic Force Microscope (AFM), Magnetic Force Microscope (MFM), and Near-field Scanning Optical Microscope (NSOM). AFM images showed the atomically flat surface of the laser-annealed region in which the growth-induced magnetic anisotropy was strongly reduced. MFM and NSOM images showed sharp changes in the direction of magnetization at the boundary between the laser-annealed region and laser-annealed region. These results show that the laser-annealing technique is very useful for fabricating waveguide optical isolators.
Effects of feeding diets containing increasing content of corn distillers dried grains with solubles to grower-finisher pigs on growth performance, carcass composition, and pork fat quality1 (2009)

Crossbred pigs (n = 512) with an average initial BW of 22.1 +/- 0.54 kg were used to evaluate growth performance, carcass characteristics, and pork fat quality of grower-finisher pigs fed corn-soybean meal diets containing increasing content of distillers dried grains with solubles (DDGS). One of 4 dietary treatments was randomly assigned to each pen within sex. Dietary treatment and sex were the main factors in a 3-phase feeding program (BW = 22 to 53 kg, 53 to 85 kg, and 85 to 115 kg). Dietary treatments consisted of a corn-soybean meal control, or a corn-soybean meal diet containing 10, 20, or 30% DDGS. Overall, increasing the dietary DDGS content had no effect on ADG (P = 0.74), but ADFI was linearly reduced and G:F was linearly increased (P < 0.01). Dressing percentage, LM marbling and firmness, and belly firmness were linearly reduced (P < 0.01), but percentage of fat-free lean was linearly increased (P < 0.05) with increasing dietary DDGS. Subjective LM color score (P = 0.65), drip loss (P = 0.37), and ultimate pH of LM (P = 0.21) were not influenced by dietary DDGS. Japanese color scores for backfat (P = 0.41) and belly fat (P = 0.85) were similar among dietary treatments (P = 0.41). Feeding an increasing content of DDGS linearly increased (P < 0.05) PUFA concentration, particularly linoleic acid (C18:2), in belly fat, backfat, and LM intramuscular fat, but the increase in LM intramuscular fat was smaller in magnitude (P < 0.05) than in backfat and belly fat. Pigs fed an increasing content of DDGS had a linear increase (P < 0.05) in the iodine value of backfat, belly fat, and LM intramuscular fat of 58.4 to 72.4, 61.5 to 72.3, and 54.8 to 57.7, respectively. Oxidation of LM intramuscular fat measured on d 0, 14, 21, and 28 of storage was not affected by dietary treatment. Taste tests for LM showed no effects of diet on flavor, off-flavor (P = 0.36), tenderness (P = 0.66), juiciness (P = 0.58), and overall acceptability (P = 0.52) scores. Similarly, bacon flavor (P = 0.88), off-flavor, crispiness, and overall liking scores were not affected by increasing dietary DDGS, but bacon fattiness (P < 0.01) and tenderness (P < 0.05) scores were linearly reduced. These results showed no negative effects on growth performance or dressing percentage when growing-finishing pigs were fed diets containing up to 30% DDGS, but fat quality may not meet the standards of all pork processors when feeding diets containing more than 20% DDGS.
Predictors of Vision-Related Quality of Life After Endothelial Keratoplasty in the Descemet Endothelial Thickness Comparison Trials (2020)

Bilateral endothelial keratoplasty resulted in higher vision-related QOL compared with unilateral. Baseline densitometry, objective measure of corneal haze that predicts vision-related QOL, may play a role in monitoring disease progression.
Electrochemical Behavior of Nitrogen-Bearing Austenitic Stainless Steels (2001)

The effect of nitrogen on localized corrosion resistant properties and repassivation behavior of nitrogenbearing 316L stainless steels was investigated in the 3.5%NaCl, 0.1kmol m-3 Na2SO4 and 0.5kmol m-3 H2SO4 solutions. Interstitial nitrogen in the steel is converted to ammoniacal state with the efficiency of 100% when the metal dissolves inside a crevice. It has been proven that the molar amount of dissolved ammonia was equivalent to the molar amount of nitrogen contained in a dissolved portion of the steel. The result is in agreement with the report where it suppresses the decrease in pH, leading to the conditions for repassivation, since conversion of nitrogen into ammonia is a proton-consuming process. Neither nitrate-N (NO3-N) nor nitrite-N (NO2-N) was detected by chemical analysis although the measured potential lies in the stability region of NO3-N in the E-pH diagram. A scratching electrode method was applied for evaluating the repassivation kinetic of nitrogen-bearing 316L stainless steels in 0.1kmol m-3 Na2SO4. The technique developed in this study allowed us to measure the recovery process of passive film immediately following the exposure of bare metal surface. The repassivation process was faster with increasing dissolved nitrogen content in the steel.
Evaluation of human-phonatory radiation characteristics with a polyhedron loudspeaker (2013)

Spoken dialog systems have been studied for car navigation systems and voice search systems. For evaluating these systems, a loudspeaker is used instead of a human because these systems require various kinds of speech samples. However, the sounds radiated by loudspeaker cannot reproduce human-phonatory radiation characteristics. Therefore, the mouth simulator is utilized to reproduce human-phonatory radiation characteristics. Although it is based on the average mouth shapes, shapes of mouth are different among phonemes. Therefore, due to the hardware structure, it cannot accurately reproduce various human-phonatory radiation characteristics affected by shapes of mouth. In this study, we developed a polyhedron loudspeaker to solve this problem. It consists of 11 loudspeakers, which are independently controlled. Controlling eleven loudspeakers makes it possible to reproduce desired radiation characteristics. By utilizing this method, we try to reproduce human-phonatory radiation characteristics of Japanese five vowels and typical consonants with digital filters which were adaptively designed. We carried out an evaluation experiment in various measuring points to verify the effectiveness of the proposed method. As a result, it was confirmed that human-phonatory radiation characteristics with the proposed method could be accurately approximated compared with the conventional mouth simulator.
Monitoring of Direct Energy Deposition Process Using Manifold Learning and Co-Axial Melt Pool Imaging (2022)

The parts manufactured by Additive Manufacturing (AM) techniques such as Directed Energy Deposition (DED) are generally quantified by post-process inspection techniques. Though these techniques are reliable, they pose constraints in terms of cost and time. Additionally, the defective build states are not known during the actual processing. Real-time Artificial Intelligence (AI) based monitoring systems are on the rise as an alternative to post-processing inspection techniques with advances in sensing techniques and Deep Learning (DL). The article focuses on how the manifolds learnt by the embedded space of the two convolutional generative models, such as autoencoder, and Generative Adversarial Networks (GAN), could be exploited to differentiate built conditions. The co-axially mounted CCD camera acquired the melt pool morphology corresponding to six build parameters covering the process map from Lack of Fusion (LoF) to conduction regime. The images acquired from the CCD camera constituted the dataset to train and test the model performance. After training, the latent space of both the networks would have captured the commonality and differences, i.e. unique manifolds of the melt pool morphologies corresponding to the six build conditions. The learned manifolds from the two trained Convolutional Neural Networks (CNN) models were exploited by combining with One-Class SVM to classify the ideal build quality from the other conditions supervisedly. The prediction of the trained One-class SVM on the two latent spaces of the CNN models had an overall classification accuracy of ≈97%. The results on the proposed methodology demonstrate the potential and robustness of the developed vision-based methodology using manifold learning for DED process monitoring.
Improvements on the Uniformity of a-Si Solar Thin Films by Using Auxiliary Magnetic Field (2011)

The uniformity of large area thin films deposition is a crucial process as we widely apply electron cyclotron resonance chemical vapor deposition (ECR-CVD) in solar industry. In this work, we installed sub-magnetic (auxiliary) fields for inner and outer coils under ECR-CVD process chamber to improve the deposition uniformity of a-Si solar thin films. Next, we measured the distribution of magnetic field along the central axis of chamber and the diameter of substrate surface. By this approach, we investigated the effect of sub-magnetic field to the uniformity of electron cyclotron resonance a-Si solar thin films deposition. We succeeded in obtaining an excellent deposition uniformity of a-Si solar thin films over 150mm diameter on glass substrates by adjusting the magnetic field distribution from inner and outer magnetic coils. The uniformity is within 10%. Moreover, We obtained optimal conditions for solar cell fabrication between the rapid process deposition rates (&gt;10 Aå/sec) and magnetic parameters.
Biomimetic structures fabricated with femtosecond laser pulses (2017)

Conferencia invitada. -- Strasbourg (France), from May 22 to 26, 2017. -- https://www.european-mrs.com/meetings/archives/2017-spring-meeting
Инструменты государственного регулирования внешнеэкономической деятельности предприятий (2015)

State regulation tools of foreign economic activity of the enterprises are considered within the present study research. The author divided tools in three groups, identified the main disadvantages and possible solutions of the existing methods of foreign economic activity management.
RECENT RESEARCH ON PREMIXED FLAMES IN STAGNATING TURBULENCE (2005)

ABSTRACT Theoretical research on premixed turbulent reactants impinging on a nearby wall is reviewed. The virtues of these flows for fundamental studies and the significant possibilities of flows not studied to date are discussed. An asymptotic analysis which exploits the small magnitude of two parameters arising in the describing Equations is outlined and shown to expose the main features of these flows. If the mean density distribution is taken from experiment, the analysis is shown to yield results in excellent agreement with data for the mean axial velocity from a variety of experiments and with the only available second moment data. The problem of predicting the mean density distribution is discussed.
ChemInform Abstract: Some 13C and 15N NMR Studies on 1,8‐Bis(dimethylamino)naphthalene (I) and Two of Its Salts (1992)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Nitrogen mineralization from ‘AU Golden' sunn hemp residue (2016)

The tropical legume sunn hemp (Crotalaria juncea L.) cultivar ‘AU Golden’ has the potential to provide substantial nitrogen (N) to subsequent crops to reduce recommended application rates of synthetic N fertilizers. A mineralization field trial was conducted to measure mass decomposition and N and carbon (C) amounts remaining from sunn hemp residue following three planting dates (May, June, and July) during the 2013 growing season at the Tennessee Valley (TVS) and Coastal Plain (WGS) locations of AL. Residue from June and July plantings contained 50.0% and 61.1% N at WGS and 41.5% and 66.5% N at TVS by the end of their respective incubation periods compared to residue from the May planting, which contained 21.1% N at WGS and 47.8% at TVS. In order to create a more synchronous relationship between ‘AU Golden’ residue N mineralization and crop demand, termination must be delayed until approximate planting of the following crop.
Food as a Hormone (2013)

Nutrient substrates derived from food can activate intracellular signaling cascades to regulate metabolic health.