gebhart/patrepeval huggingface dataset:
Geometric Correction for Uneven Quadric Projection Surfaces Using Recursive Subdivision of Bézier Patches (2013)

This paper presents a scheme for geometric correction of projected content for planar and quadratic projection surfaces. The scheme does not require the projection surface to be perfectly quadratic or planar and is therefore suitable for uneven low‐cost commercial and home projection surfaces. An approach based on the recursive subdivision of second‐order Bézier patches is proposed for the estimation of projection distortion owing to surface imperfections. Unlike existing schemes, the proposed scheme is completely automatic, requires no prior knowledge of the projection surface, and uses a single uncalibrated camera without requiring any physical markers on the projection surface. Furthermore, the scheme is scalable for geometric calibration of multiprojector setups. The efficacy of the proposed scheme is demonstrated using simulations and via practical experiments on various surfaces. A relative distortion error metric is also introduced that provides a quantitative measure of the suppression of geometric distortions, which occurs as the result of an imperfect projection surface.
Antimicrobial Susceptibilities of Campylobacter jejuni and coli by Using E-Test in Taiwan (1998)

To report the in vitro antibiotic susceptibility of Campylobacter species, we determined the MICs of 6 antibiotics by E-test for 93 human clinical strains and 35 chicken strains. The 6 antimicrobial agents tested were gentamicin, erythromycin, clindamycin, tetracycline, ciprofloxacin, and nalidixic acid. Isolates from humans were significantly more susceptible than chicken strains to erythromycin, clindamycin and ciprofloxacin. Nearly all of the human and chicken strains were susceptible to gentamicin. Among human isolates of C. jejuni, cross-resistance between nalidixic acid and ciprofloxacin was found in 66% of the strains, but none of the nalidixic acid-susceptible strains was resistant to ciprofloxacin. The higher prevalence of ciprofloxacin resistance in this area may be attributable to the large amount use of quinolones in poultry. Because of the high resistance rates of chicken isolates to the commonly used antimicrobial agents, it is necessary to create innovative methods to limit the inappropriate use of antibiotics in poultry in order to prevent the spread of the drug-resistant strains to humans.
Biodegradable polyurethane cancellous bone graft substitutes in the treatment of iliac crest defects (2006)

Porous scaffolds were produced from newly designed biodegradable, segmented aliphatic polyurethanes of various chemical compositions and hydrophilic-to-hydrophobic segment ratios. The scaffolds were implanted into monocortical defects in the iliac crest of healthy sheep for 6 months. The resected cortex was not repositioned. The ilium defects, which were not implanted with polyurethane scaffolds, were used as controls. In none of the control defects was there bone regeneration at the time of euthanasia. The defects implanted with porous scaffolds from polyurethanes were healed to varying extents with cancellous bone. The structure of the regenerated cancellous bone was radiographically denser than the structure of native bone. New bone that was formed in the scaffolds with a higher amount of hydrophilic component contained more calcium phosphate deposit than the bone formed in the scaffolds with a lower amount of the hydrophilic component. There was no new cortex formed over the defect, but a thin layer of soft tissue covered the newly formed cancellous bone.
Fluid inclusion constraints on the uplift history of the metamorphosed massive sulphide deposits at Ducktown, Tennessee (1991)

Abstract Standard petrographic, microthermometric and Raman spectroscopic analyses of fluid inclusions from the metamorphosed massive sulphide deposits at Ducktown, Tennessee, indicate that fluids with a wide range of compositions in the C–O–H–N–S–salt system were involved in the syn‐ to post‐metamorphic history of these deposits. Primary fluid inclusions from peak metamorphic clinopyroxene contain low‐salinity, H 2 O–CH 4 fluids and calcite, quartz and pyrrhotite daughter crystals. Many of these inclusions exhibit morphologies resembling those produced in laboratory experiments in which confining pressures significantly exceed the internal pressures of the inclusions. Secondary inclusions in metamorphic quartz from veins, pods, and host matrix record a complex uplift history involving a variety of fluids in the C–O–H–N–salt system. Early fluids were generated by local devolatilization reactions while later fluids were derived externally. Isochores calculated for secondary inclusions in addition to the chronology of trapping and morphological features of primary and secondary fluid inclusions suggest an uplift path which was concave toward the temperature axis over the P–T range 6–3 kbar and 550–225° C. Immiscible H 2 O–CH 4 –N 2 –NaCl fluids were trapped under lithostatic to hydrostatic pressure conditions at 3–0.5 kbar and 215 ± 20° C. Entrapment occurred during Alleghanian thrusting, and the fluids may have been derived by tectonically driven expulsion of pore fluids and thermal maturation of organic material in lower‐plate sedimentary rocks which are thought to underlie the deposits. Episodic fracturing and concomitant pressure decreases in upper‐plate rocks, which host the ore bodies, would have allowed these fluids to move upward and become immiscible. Post‐Alleghanian uplift appears to have been temperature‐convex. Uplift rates of 0.10–0.05 mm year −1 from middle Ordovician to middle Silurian – late Devonian, and 0.07–0.12 mm year −1 from middle Silurian – late Devonian to late Permian are suggested by our uplift path and available geochronological data.
Macromol. Rapid Commun. 12/2016 (2016)

Back Cover: Highly isospecific polymerization of silyl-protected ω-alkenols, using a combination of [OSSO]-type bis(phenolato) dichloro zirconium(IV) complex and dMAO as the precatalyst and the activator, respectively, is established. This method represents the first example for a stereoselective polymerization of polar functional α-olefins ([mmmm] > 95%). Subsequently, the obtained terminal siloxy-substituted isotactic polymer could be readily transformed by a macromolecular desilylation/acetylation reaction sequence to afford the corresponding terminal acetyl-enriched polymer. Further details can be found in the article by Y. Saito, N. Nakata,* and A. Ishii* on page 969.
Vibrational Coherence Modulated Interfacial Third Harmonic Generation Spectroscopy (2009)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text D. Kupka, J. Wilson, P. Schlup, and R. A. Bartels, "Vibrational Coherence Modulated Interfacial Third Harmonic Generation Spectroscopy," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optica Publishing Group, 2009), paper JThE116. Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Analysis of the Hypervariable Regions (HVRs) of the wsp Gene of Wolbachia from Solenopsis invicta Ants in Southeastern Brazil (2014)

Wolbachia is a bacterium that infects many arthropods with horizontal or vertical transmission. The introduction and spreading of Solenopsis invicta in new areas may have influenced the acquisition of Wolbachia as this ant species spread from its South America origin to other parts of the globe. The wsp gene of Wolbachia was analyzed using the WSP Typing and a similarity analysis was conducted to analyse the sharing of the symbiont among nests of S. invicta ants. The analyses revealed the presence of two groups of Wolbachia: strain A belonging to InvA S. invicta subgroup, and the strain B belonging to Acromyrmex insinuator. The wsp gene and its hypervariable regions are shared among the Wolbachia present in different types of ants inhabiting in the New World. Wolbachia strains found in the nests of S. invicta are ant-specialist symbionts which may have spread by several means among the ant population.
Synthesis of polynitro methyltetrazoles (2020)

Abstract Synthesis of new energetic gem‐dinitropropylnitramino methyltetrazoles has been described.
CHAPTER 11: Environmental and Clinical Acidovorax Strains (2018)

Members of the genus Acidovorax are quite diverse. In contrast to their importance as plant pathogens, Acidovorax spp. rarely cause human and animal infections. Although members of the genus Acidovorax have been isolated from clinical samples, there is little evidence for pathogenicity in healthy humans, and the genus has not been designated as an opportunistic human or animal pathogen. In contrast, Acidovorax strains appear to play important roles in the environment. Environmental isolates of Acidovorax have broad catabolic abilities and participate in organic and inorganic nutrient cycling in nature. These characteristics have led to potential applications in bioremediation and biocatalysis. This chapter describes the infrequent identification of Acidovorax strains from humans, animals, and clinical settings and explores the importance of Acidovorax in the environment. Acidovorax isolates from the environment are capable of degrading a variety of aromatic compounds and polymers. They contribute to iron cycling and removal of toxic ions from drinking water and catalyze microbially induced corrosion and biofilm formation. Current applications for the production of industrially important chemicals by Acidovorax are also described.
Amide proton transfer imaging of human brain tumors at 3T (2006)

Amide proton transfer (APT) imaging is a technique in which the nuclear magnetization of water-exchangeable amide protons of endogenous mobile proteins and peptides in tissue is saturated, resulting in a signal intensity decrease of the free water. In this work, the first human APT data were acquired from 10 patients with brain tumors on a 3T whole-body clinical scanner and compared with T1- (T1w) and T2-weighted (T2w), fluid-attenuated inversion recovery (FLAIR), and diffusion images (fractional anisotropy (FA) and apparent diffusion coefficient (ADC)). The APT-weighted images provided good contrast between tumor and edema. The effect of APT was enhanced by an approximate 4% change in the water signal intensity in tumor regions compared to edema and normal-appearing white matter (NAWM). These preliminary data from patients with brain tumors show that the APT is a unique contrast that can provide complementary information to standard clinical MRI measures.
Mechanisms of make and break excitation revisited: paradoxical break excitation during diastolic stimulation (2002)

Onset and termination of electric stimulation may result in "make" and "break" excitation of the heart tissue. Wikswo et al. (30) explained both types of stimulations by virtual electrode polarization. Make excitation propagates from depolarized regions (virtual cathodes). Break excitation propagates from hyperpolarized regions (virtual anodes). However, these studies were limited to strong stimulus intensities. We examined excitation during weak near-threshold diastolic stimulation. We optically mapped electrical activity from a 4 x 4-mm area of epicardium of Langendorff-perfused rabbit hearts (n = 12) around the pacing electrode in the presence (n = 12) and absence (n = 2) of 15 mM 2,3-butanedione monoxime. Anodal and cathodal 2-ms stimuli of various intensities were applied. We imaged an excitation wavefront with 528-micros resolution. We found that strong stimuli (x5 threshold) result in make excitation, starting from the virtual cathodes. In contrast, near-threshold stimulation resulted in break excitation, originating from the virtual anodes. Characteristic biphasic upstrokes in the virtual cathode area were observed. Break and make excitation represent two extreme cases of near-threshold and far-above-threshold stimulations, respectively. Both mechanisms are likely to contribute during intermediate clinically relevant strengths.
A Convenient, One-Pot Synthesis of 2,3-Disubstituted Allylic Amines (1984)

Abstract A series of organometallic reagents have been added to a 2-arylsubstituted vinamidinium perchlorate. The resulting reaction mixture was treated with borane or diisobutylaluminum hydride solution to produce a series of 3-substituted-2-aryl-N,N-dimethyl allylic amines. The overall one-pot procedure constitutes a convenient synthesis of 2,3-disubstituted allylic amines.
RETRACTED: Mutations in the G-quadruplex silencer element and their relationship to c-MYC overexpression, NM23 repression, and therapeutic rescue (2004)

We have demonstrated that a parallel G-quadruplex structure in the c-MYC promoter functions as a transcriptional repressor element. Furthermore, a specific G-to-A mutation in this element results in destabilization of the G-quadruplex repressor element and an increase in basal transcriptional activity. To validate this model in an in vivo context, we have examined the sequence of this region in human colorectal tumors and the surrounding normal tissue. We have found that approximately 30% of tumors contain one of two specific G-to-A mutations, not present in the surrounding normal tissue, that destabilize the parallel G-quadruplex, which would be expected to give rise to abnormally high expression of c-MYC in these cells. In contrast, G-quadruplex-disruptive mutations were absent in 20 colon adenomas, suggesting that these mutations occur late in tumorigenesis. We have also demonstrated that these same mutations are found in established colorectal cell lines. NM23-H2 levels are lower in cancer tissues and cell lines that harbor these mutations. In cells with repressed levels of NM23-H2, the mutated and destabilized G-quadruplex silencer element can be reinstated by the addition of G-quadruplex-stabilizing compounds, providing an opportunity for therapeutic intervention for patients carrying these mutations.
Large-Scale Pairwise Sequence Alignments on a Large-Scale GPU Cluster (2013)

The paper describes a graphics processing unit (GPU) kernel that performs batch Needleman-Wunsch (N-W) global alignments. For each alignment, the kernel returns an alignment score divided by the total alignment length. When used with its MPI-based host software, the kernel is scalable and is capable of achieving high-throughput alignment when run on a CPU-GPU cluster. The host software includes a load balancing technique for data sets having sequences of nonuniform lengths.
Functional Neuroimaging Artifacts (1996)

The sections in this article are


1
Introduction

2
Recognition of Activation-Induced Signal Changes

3
The Problem of Subject Motion

4
Image Registration

5
Evidence for Stimulus Correlated Motion

6
Correction of Misregistration Artifacts

7
Conclusion

8
Biographical Sketch


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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTParticipation of a Neighboring Amide Group in the Decomposition of Esters and Amides of Substituted Phthalamic Acids1J. A. Shafer and H. MorawetzCite this: J. Org. Chem. 1963, 28, 7, 1899–1901Publication Date (Print):July 1, 1963Publication History Published online1 May 2002Published inissue 1 July 1963https://pubs.acs.org/doi/10.1021/jo01042a505https://doi.org/10.1021/jo01042a505research-articleACS PublicationsRequest reuse permissionsArticle Views272Altmetric-Citations39LEARN 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
Inhibitors of Hypoxic Pulmonary Vasoconstriction Prevent High-Altitude Pulmonary Edema in Rats☆ (2004)

The results demonstrate that treatment with NiCl2 or acetazolamide prevents HAPE in rats and are consistent with a role for elevated pulmonary artery pressure in the pathogenesis of HAPE.
Next-generation Intrusion Detection Expert System (NIDES)A Summary (1997)

For primary prevention, statin therapy reduces the incidence of atherosclerotic cardiovascular disease (ASCVD) events in adults with intermediate or high estimated 10-year risk using traditional population-based risk calculators. While a variety of reported symptoms may limit statin adherence, muscle complaints, whether typical or atypical of that associated with statin therapy, are the most common reported by patients. Because additional testing, alteration in the patient's medical regimen and subsequent medical visits are often required, an informed clinician-patient discussion and shared decision making are necessary to achieve the best outcomes. The authors provide support for the perspective that coronary calcium scoring, by individualizing estimated risk and helping to identify those most likely to benefit, plays a vital role in preventive therapy decision-making for the primary prevention patient with troublesome muscle complaints attributed to statin therapy.
Faculty Opinions recommendation of CRISPR-Mediated Programmable 3D Genome Positioning and Nuclear Organization. (2018)

Programmable control of spatial genome organization is a powerful approach for studying how nuclear structure affects gene regulation and cellular function.Here, we develop a versatile CRISPR-genome organization (CRISPR-GO) system that can efficiently control the spatial positioning of genomic loci relative to specific nuclear compartments, including the nuclear periphery, Cajal bodies, and promyelocytic leukemia (PML) bodies.CRISPR-GO is chemically inducible and reversible, enabling interrogation of real-time dynamics of chromatin interactions with nuclear compartments in living cells.Inducible repositioning of genomic loci to the nuclear periphery allows for dissection of mitosis-dependent and -independent relocalization events and also for interrogation of the relationship between gene position and gene expression.CRISPR-GO mediates rapid de novo formation of Cajal bodies at desired chromatin loci and causes significant repression of endogenous gene expression over long distances (30-600 kb).The CRISPR-GO system offers a programmable platform to investigate large-scale spatial genome organization and function.
A Microwave Sensor for Steam Quality (2008)

In this paper, a microwave-based in-line sensor for steam quality is described, and test results are reported. The sensor employs a novel high-pressure process seal that minimizes mismatch effects when water condenses on its inner surface.
[The 3rd national workshop on defecography: the functional radiology of (neo) rectal ampullae (ileal reservoir, colo-anal anastomosis, continent perineal colostomy)]. (1996)

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Single color injection of ballistic spin-polarized currents in strained [110]-oriented GaAs quantum wells (2005)

Spin-polarized ballistic charge currents are generated in strained GaAs with single 60 fs optical pulses and detected via THz experiments. State filling and carrier-dependent momentum scattering lead to a sublinear intensity dependence at high pump intensities.
Multi-Element Synthetic Transmit Aperture in Medical Ultrasound Imaging (2010)

Sciendo provides publishing services and solutions to academic and professional organizations and individual authors. We publish journals, books, conference proceedings and a variety of other publications.
Histocompatibility antigens in coal miners with pneumoconiosis. (1983)

Twenty-five histocompatibility antigens have been measured in 100 coal miners with pneumoconiosis attending a pneumoconiosis medical panel and the results compared with a panel of 200 normal volunteers not exposed to dust. Chest radiographs were read independently by three readers according to the ILO U/C classification. On a combined score, 40 men were thought to have simple pneumoconiosis and 60 men complicated pneumoconiosis. The number of antigens tested and associations between antigens caused difficulties in assessing the statistical significance of differences in prevalence of antigens between groups of men. Using stringent criteria for statistical significance, no significant differences were found in antigen prevalences between miners and controls, or miners with simple or complicated pneumoconiosis. When a less stringent statistical approach was applied, three antigens appeared to have abnormal prevalences in these 100 miners by comparison with the normal volunteers. More detailed examination of these antigen prevalences in relation to radiographic category of pneumoconiosis did not provide any supportive evidence that these slight associations were of statistical or clinical significance. Reports on histocompatibility antigens in miners with pneumoconiosis are reviewed briefly and the results compared. There is no good evidence that any of the histocompatibility antigens so far tested are associated with a clinically important altered risk of simple or complicated pneumoconiosis when dust is inhaled.
Human Motion Reconstruction Based on Multi-view Video (2013)

In this paper, the key technologies of human motion reconstruction Based on multi-view video are discussed. A more robust motion reconstruction method with markers is presented, which includes camera calibration, markers extraction, markers tracking and 3D reconstruction. In the procedure of markers tracking, we propose a novel multi-view tracking algorithm. This algorithm is made up of two steps, one is binocular stereo vision tracking which combines the Extended Kalman Filter with the smooth of markers' trajectory, and another is multi-view data fusion. The effectiveness of this method is verified by experiments.