gebhart/patrepeval huggingface dataset:
Cloud Removal from Satellite using Cloning Method (2016)

Cloud removal approach based on information cloning is introduced. In this approach it removes all cloud contaminated portions of a satellite image and it is then reconstructs the information which contains missing data by taking temporal correlation of multitemporal images. The idea is to clone information from cloud free patches to their corresponding cloud contaminated patches under assumption that land covers change insignificantly over a short period of time. This patch based information is mathematically formulated as Poisson equation and it is then solved using global optimization process. This approach can yield better results. The experimental results of images taken by landsat7shows that, this system can process large clouds in heterogeneous landscape which is a difficult process for cloud removal approaches. Along with this quantitative and qualitative analysis are also conducted by using quality index and visual inspection in order to evaluate performance of the proposed system.
Phase structure and thermomechanical properties of primary and tertiary amine‐cured epoxy/silica hybrids (2001)

Abstract Several kinds of organic–inorganic hybrids were synthesized from an epoxy resin and a silane alkoxide with a primary amine‐type curing agent or tertiary amine curing catalyst. In the hybrid systems cured with the primary amine‐type curing agent, the storage modulus in the high‐temperature region increased, and the peak area of the tan δ curve decreased. Moreover, the mechanical properties were improved by the hybridization of small amounts of the silica network. However, these phenomena were not observed in the hybrid systems cured with the tertiary amine catalyst. The differences in the network structures of the hybrid materials with the different curing processes were characterized with Fourier transform infrared (FTIR). In the hybrid systems cured with the primary amine‐type curing agent, FTIR results showed the formation of a covalent bond between silanol and hydroxyl groups that were generated by the reaction of an epoxy group with an active hydrogen of the primary amine. However, this phenomenon was not observed in the hybrids cured with the tertiary amine. The hybrids with the primary amine showed a homogeneous microstructure in transmission electron microscopy observations, although the hybrids cured with the tertiary amine showed a heterogeneous structure. These results mean that the differences in the interactions between the organic and inorganic phases significantly affect the properties and microstructures of the resultant composites. © 2001 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 39: 1071–1084, 2001
Does Chronic Tinnitus Alter the Emotional Response Function of the Amygdala?: A Sound-Evoked fMRI Study (2017)

Tinnitus is often associated with strong negative thoughts and emotions which can contribute to a distressing and chronic long-term condition. The amygdala, the "feeling and reacting" part of the brain, may play a key role in this process. Although implicated in several theoretical models of tinnitus, quantification of activity in the human amygdala has only been made possible more recently through neuroimaging methods such as functional magnetic resonance imaging (fMRI) but benefits from modified scanning parameters using a double-echo acquisition for improved BOLD sensitivity. This study thus examined the role of the amygdala in emotional sound processing in people with tinnitus using a novel double-echo imaging sequence for optimal detectability of subcortical activity. Our hypotheses were: (1) emotionally evocative sound clips rated as pleasant or unpleasant would elicit stronger amygdalar activation than sound clips rated as neutral, (2) people with tinnitus have greater amygdalar activation in response to emotionally evocative sounds (relative to neutral sounds) compared to controls. <b>Methods:</b> Twelve participants all with chronic, constant tinnitus took part. We also recruited 11 age and hearing-matched controls. Participants listened to a range of emotionally evocative sound clips; rated as pleasant, unpleasant or neutral. A region-of-interest analysis was chosen to test our a priori hypotheses. <b>Results:</b> Both groups displayed a robust and similar overall response to sounds vs. silence in the following ascending auditory pathways; inferior colliculus, medial geniculate body and the primary auditory cortex. In support of our first hypothesis, the amygdala's response to pleasant and unpleasant sound clips was significantly greater than neutral sounds. Opposing our second hypothesis, we found that the amygdala's overall response to pleasant and unpleasant sounds (compared to neutral sounds) was actually lower in the tinnitus group as compared to the controls. <b>Conclusions:</b> The "muted" amygdala activation observed in the tinnitus group could reflect an internal modification of emotional response perhaps as a result of successful habituation to emotionally negative sound. This interpretation would predict a heightened amygdala emotional response in individuals with a more clinically bothersome tinnitus.
Internal Resistance of an LED as a function of Temperature (2010)

The relationship between internal resistance and the operating temperature was investigated for a 5 mm green LED. A potential difference of 3.00 V was put across the LED and the current through it was recorded for different operating temperatures. It was found that there is an exponential relationship between the internal resistance and the inverse of temperature.
Emerging drugs for the treatment of diabetic ulcers (2013)

Significant strides in understanding the chronic wound development have led to the development of topical therapies to address aberrant expression of growth factors and overexpression of inflammatory cytokines. Current research in the laboratory suggests that while decreased growth factor expression occurs at the local wound level, increased systemic serum levels of growth factors suggest growth factor resistance.
A Novel and Efficient Method for Enzymatic Synthesis of High Purity Maltose Using Moranoline (1-Deoxynojirimycin) (1992)

A transglycosylation reaction with moranoline (1-deoxynojirimycin) was done with soluble starch as the glucosyl donor and Bacillus macerans amylase as a cyclodextrin glycosyltransferase [EC 2.4.1.19]. The resultant transglycosylation products with moranoline, obtained by treating the reaction mixture with a strong cation exchange resin, were hydrolyzed by beta-amylase [EC 3.2.1.2] from sweet potatoes. The hydrolysate was treated with a strong cation exchange resin, and high purity maltose was obtained.
Neural correlates of prospective memory in individuals with schizotypal personality features. (2013)

These results confirmed that the PM network involves prefrontal cortex, including BA 10. The lower activation in prefrontal cortex of individuals with schizotypal features when performing a PM task indicates brain activation abnormality. Notably, this abnormality may occur in the absence of any behavioral manifestation. Our findings support the hypothesis of frontal lobe involvement in PM deficits observed in individuals with schizotypal features.
One-pot synthesis of .beta.-keto sulfones and .beta.-keto sulfoxides from carboxylic acids (1989)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOne-pot synthesis of .beta.-keto sulfones and .beta.-keto sulfoxides from carboxylic acidsC. Alvarez Ibarra, R. Cuervo Rodriguez, M. C. Fernandez Monreal, F. J. Garcia Navarro, and J. Martin TesoreroCite this: J. Org. Chem. 1989, 54, 23, 5620–5623Publication Date (Print):November 1, 1989Publication History Published online1 May 2002Published inissue 1 November 1989https://pubs.acs.org/doi/10.1021/jo00284a043https://doi.org/10.1021/jo00284a043research-articleACS PublicationsRequest reuse permissionsArticle Views1514Altmetric-Citations30LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Leitura sociodramática de um meio de comunicação: HQ - o universo educacional da Mafalda numa leitura correlata de Buber e Moreno (1996)

A metodologia sociodramatica pode ser encarada como um instrumento de transformacao de produtos da Industria Cultural,considerados lesivos e desintegradores,em materia-prima que leva ao resgate da espontaneidadee da criatividade, alem de propiciar o desenvolvimento tanto da compreensao critica e ativa, como da vontade transformadora.
Synthesis and Characterization of Poly-<scp>l</scp>-lysine-Grafted Silica Nanoparticles Synthesized via NCA Polymerization and Click Chemistry (2010)

Polypeptide polymer-grafted silica nanoparticles are of considerable interest because the ordered secondary structure of the polypeptide grafts imparts novel functional properties onto the nanoparticle composite. The synthesis of poly-L-lysine-grafted silica nanoparticles would be of particular interest because the high density of cationic charges on the surface could lead to many applications such as gene delivery and antimicrobial agents. In this work, we have developed a "grafting-to" approach using a combination of NCA polymerization and "click chemistry" to synthesize poly-L-lysine-grafted silica nanoparticles with a high graft density of 1 chain/nm(2). The covalent attachment of poly-L-lysine to silica nanoparticles (PLL-silica) was confirmed using a variety of techniques such as (13)C CP MAS NMR, TGA, and IR. This methodology was then extended to graft poly-L-lysine-b-poly-L-leucine copolymer (PLL-b-PLLeu-silica) and poly-L-benzylglutamate (PLBG-silica) onto silica nanoparticles. All of these polypeptide-grafted nanoparticles show interesting aggregation properties in solution. The efficacy of PLL-silica and PLL-b-PLLeu-silica as antimicrobial agents was tested on both gram-negative E. coli and gram-positive Bacillus subtilis.
[POSTER] Automatic Visual Feedback from Multiple Views for Motor Learning (2015)

A system providing visual feedback of a trainee's motions for effectively enhancing motor learning is presented. It provides feedback in synchronization with a reference motion from multiple view angles automatically with only a few seconds delay. Because the feedback is provided automatically, a trainee can obtain it without performing any operations while the memory of the motion is still clear. By employing features with low computational cost, the system achieves synchronized video feedback with four cameras connected to a consumer tablet PC.
Are There Gender Differences in<i>How</i>Students Write Their Essays? An Analysis of Writing Processes (2019)

Abstract This study compared gender groups on the processes used in writing essays in an online assessment. Middle‐school students from four grades responded to essays in two persuasive subgenres, argumentation and policy recommendation. Writing processes were inferred from four indicators extracted from students’ keystroke logs. In comparison to males, on average females not only obtained higher essay scores but differed from males in their writing processes. Females entered text more fluently, engaged in more macro and local editing, and showed less need to pause at locations associated with planning (e.g., between bursts of text, at sentence boundaries). That these differences were detected after controlling for essay scores suggests that they cannot be attributed solely to disparities in group writing skill.
Electric Multirotor UAV Propulsion System Sizing for Performance Prediction and Design Optimization (2016)

One of the more daunting tasks of designing a multirotor unmanned aerial vehicle (UAV) is the selection of a propulsion system that will provide desired performance. Rigorous methods for selecting these drive components, that is, the motors, propellers, and batteries for electric UAVs are not readily available. Currently, many UAV designs are based on legacy selections or limited and at times incorrect manufacturer data. These design methods are either simplistic or lacking in analysis and validation of component selection. Proper propulsion system design should address the mission requirements for which the vehicle is being designed. A proper design methodology is the best chance that the designer has to create a new vehicle that will be mission-capable. This paper attempts to satisfy the need for more thorough method of propulsion component selection. The paper is written also to document the popular online drive system analysis tool due to numerous requests. This tool is one example implementation of the methodologies described by this paper.
GaAs under Intense Ultrafast Excitation: Response of the Dielectric Function (1998)

We used a new broadband spectroscopic technique to measure the dielectric function of GaAs over the spectral range of 1.5--3.5 eV following intense 70-fs laser excitation. The results provide the most detailed information thus far on the electron and lattice dynamics both above and below the fluence threshold for permanent damage, ${F}_{\mathrm{th}}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.0\phantom{\rule{0ex}{0ex}}\mathrm{kJ}/{\mathrm{m}}^{2}$. There are three distinct regimes of behavior: lattice heating $(<{0.5F}_{\mathrm{th}})$, lattice disordering (0.6--0.8) ${F}_{\mathrm{th}}$, and a semiconductor-to-metal transition $(>{0.8F}_{\mathrm{th}})$. Below ${F}_{\mathrm{th}}$, the changes are completely reversible.
Secure and practical outsourcing of linear programming in cloud computing (2011)

Cloud computing enables customers with limited computational resources to outsource large-scale computational tasks to the cloud, where massive computational power can be easily utilized in a pay-per-use manner. However, security is the major concern that prevents the wide adoption of computation outsourcing in the cloud, especially when end-user's confidential data are processed and produced during the computation. Thus, secure outsourcing mechanisms are in great need to not only protect sensitive information by enabling computations with encrypted data, but also protect customers from malicious behaviors by validating the computation result. Such a mechanism of general secure computation outsourcing was recently shown to be feasible in theory, but to design mechanisms that are practically efficient remains a very challenging problem. Focusing on engineering computing and optimization tasks, this paper investigates secure outsourcing of widely applicable linear programming (LP) computations. In order to achieve practical efficiency, our mechanism design explicitly decomposes the LP computation outsourcing into public LP solvers running on the cloud and private LP parameters owned by the customer. The resulting flexibility allows us to explore appropriate security/efficiency tradeoff via higher-level abstraction of LP computations than the general circuit representation. In particular, by formulating private data owned by the customer for LP problem as a set of matrices and vectors, we are able to develop a set of efficient privacy-preserving problem transformation techniques, which allow customers to transform original LP problem into some random one while protecting sensitive input/output information. To validate the computation result, we further explore the fundamental duality theorem of LP computation and derive the necessary and sufficient conditions that correct result must satisfy. Such result verification mechanism is extremely efficient and incurs close-to-zero additional cost on both cloud server and customers. Extensive security analysis and experiment results show the immediate practicability of our mechanism design.
Robustness of partial least-squares method for estimating latent variable quality structures (1999)

Latent variable structural models and the partial least-squares (PLS) estimation procedure have found increased interest since being used in the context of customer satisfaction measurement. The well-known property that the estimates of the inner structure model are inconsistent implies biased estimates for finite sample sizes. A simplified version of the structural model that is used for the Swedish Customer Satisfaction Index (SCSI) system has been used to generate simulated data and to study the PLS algorithm in the presence of three inadequacies: (i) skew instead of symmetric distributions for manifest variables; (ii) multi-collinearity within blocks of manifest and between latent variables; and (iii) misspecification of the structural model (omission of regressors). The simulation results show that the PLS method is quite robust against these inadequacies. The bias that is caused by the inconsistency of PLS estimates is substantially increased only for extremely skewed distributions and for the erroneous omission of a highly relevant latent regressor variable. The estimated scores of the latent variables are always in very good agreement with the true values and seem to be unaffected by the inadequacies under investigation.
microRNA319a-Targeted <i>Brassica rapa</i> ssp. <i>pekinensis TCP</i> Genes Modulate Head Shape in Chinese Cabbage by Differential Cell Division Arrest in Leaf Regions   (2013)

Leafy heads of cabbage (Brassica oleracea), Chinese cabbage (Brassica rapa), and lettuce (Lactuca sativa) are composed of extremely incurved leaves. The shape of these heads often dictates the quality, and thus the commercial value, of these crops. Using quantitative trait locus mapping of head traits within a population of 150 recombinant inbred lines of Chinese cabbage, we investigated the relationship between expression levels of microRNA-targeted Brassica rapa ssp. pekinensis TEOSINTE BRANCHED1, cycloidea, and PCF transcription factor4 (BrpTCP4) genes and head shape. Here, we demonstrate that a cylindrical head shape is associated with relatively low BrpTCP4-1 expression, whereas a round head shape is associated with high BrpTCP4-1 expression. In the round-type Chinese cabbage, microRNA319 (miR319) accumulation and BrpTCP4-1 expression decrease from the apical to central regions of leaves. Overexpression of BrpMIR319a2 reduced the expression levels of BrpTCP4 and resulted in an even distribution of BrpTCP4 transcripts within all leaf regions. Changes in temporal and spatial patterns of BrpTCP4 expression appear to be associated with excess growth of both apical and interveinal regions, straightened leaf tips, and a transition from the round to the cylindrical head shape. These results suggest that the miR319a-targeted BrpTCP gene regulates the round shape of leafy heads via differential cell division arrest in leaf regions. Therefore, the manipulation of miR319a and BrpTCP4 genes is a potentially important tool for use in the genetic improvement of head shape in these crops.
[The role of granulocytic chalone and antichalone in regulating granulocytopoiesis under stress]. (1989)

The experiments on rats have shown that immobilization stress induces a prolonged increase of the activity in the blood serum of tissue-specific granulocytopoiesis stimulator--granulocytic antichalone.
Activity analysis of a water oxidation catalyst adsorbed on an inorganic particle matrix (1996)

A highly active electrocatalytic system to oxidise water to dioxygen (O2) has been established using electrodeposited platinum black with an adsorbed trinuclear ruthenium complex (Ru-red). The catalyst turnover number for O2 evolution was 1500 h–1, four orders of magnitude greater than that of neat Pt-black. This high activity was ascribed to efficient charge transport from the electrode to the catalyst. The amount of O2 evolved increased almost linearly with the amount of Ru-red for low loadings on Pt-black but decreased after passing an optimum loaded amount. This decrease was ascribed to bimolecular decomposition of the catalysts. The catalyst activity was analysed in terms of critical decomposition distance (rd/nm) by a surface adsorption model (SAM) and a void-space adsorption model (VAM); rd was estimated to be 1.37 nm for the SAM and 1.21 nm for the VAM.
A methodology for risk assessment of functional specification of software systems using colored Petri nets (2002)

The paper presents a methodology for risk assessment in complex real time software systems at the early stages of development, namely the analysis/design phase. A heuristic risk assessment technique is described based on colored Petri net (CPN) models. The technique uses complexity metrics and severity measures in developing a heuristic risk factor from software functional specifications. The objective of risk assessment is to classify the software components according to their relative importance in terms of such factors as severity and complexity. Both traditional static and dynamic complexity measures are supported. Concurrency complexity is presented as a new dynamic complexity metric. This metric measures the added dynamic complexity due to concurrency in the system. Severity analysis is conducted using failure mode and effect analysis (FMEA). The methodology presented here is applied to a large scale software system as presented in a companion paper (H. Ammar et al., 1997).
Post‐Synthetic Polymerization of UiO‐66‐NH<sub>2</sub> Nanoparticles and Polyurethane Oligomer toward Stand‐Alone Membranes for Dye Removal and Separation (2016)

Metal-organic frameworks (MOFs) are widely used as porous materials in the fields of adsorption and separation. However, their practical application is largely hindered by limitations to their processability. Herein, new UiO-66-Urea-based flexible membranes with MOF loadings of 50 (1), 60 (2), and 70 wt % (3) were designed and prepared by post-synthetic polymerization of UiO-66-NH2 nanoparticles and a polyurethane oligomer under mild conditions. The adsorption behavior of membrane 3 towards four hydrophilic dyes, namely, eosin Y (EY), rhodamine B (RB), malachite green (MG), and methylene blue (MB), in aqueous solution was studied in detail. It exhibits strong adsorption of EY and RB but weak adsorption of MG and MB in aqueous solution. Owing to the selective adsorption of these hydrophilic dyes, membrane 3 can remove EY and RB from aqueous solution and completely separate EY/MB, RB/MG, and RB/MB mixtures in aqueous solution. In addition, the membrane is uniformly textured, easily handled, and can be reused for dye adsorption and separation.
Theoretical aspects of virus capsid assembly (2005)

A virus capsid is constructed from many copies of the same protein(s). Molecular recognition is central to capsid assembly. The capsid protein must polymerize in order to create a three-dimensional protein polymer. More than structure is required to understand this self-assembly reaction: one must understand how the pieces come together in solution.