gebhart/patrepeval huggingface dataset:
Blockmatching motion estimation algorithms-new results (1990)

An efficient method for block-matching motion estimation is considered for interframe motion-compensated prediction of video signals. In contrast to other block-matching methods, this approach takes into consideration the behavior of individual pels in the search to find the best match. This is achieved by classifying each pel in the block into one of the categories of matching pel or mismatching pel. The best match within a search area is the block with the highest number of matching pels. In the simulation results presented the scheme is compared with other well-known block-matching schemes. It is found that this method performs significantly better than a scheme such as mean absolute difference (MAD), with lower computation cost.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
New nozzle for high power CO2 laser welding with Argon as shielding gas (2010)

It is known that Helium is the most efficient shielding gas for the high power CO2 laser welding process. The high ionization potential of helium limits the ionization propagation from the metallic plasma plume to the shielding gas. Helium avoids the formation of parasitic plasma in the shielding gas which could absorb the incident laser beam. This phenomenon is known as Bremsstrahlung Inverse absorption. With high CO2 laser power, it is not possible to use argon as shielding gas. The formation of this parasitic plasma depends on the laser features as the power, the power density, the focused spot diameter and the focal length. Indeed, the focal length affects the opening of the focused laser beam and the power density above the metallic plasma plume resulting from the welding process. The higher the power density above the metallic plasma plume is, the easier the parasitic plasma formation in the shielding gas will be. this paper, we present a solution to weld with a high power CO2 laser beam and 100% Argon or other free Helium gases. The solution is suitable up to 12kW CO2 and a 100% Argon flow rates of 35l/min. The results obtained with Argon shielding gas have the same quality of the traditional ones obtained with Helium.
High‐resolution ultrasound analysis of subsynovial connective tissue in human cadaver carpal tunnel (2006)

The carpal tunnel contains the median nerve, nine flexor tendons, two synovial bursae, and peritendinous subsynovial connective tissue (SSCT). Fibrosis of the SSCT is the most consistent pathological finding in patients with carpal tunnel syndrome. We investigated the anatomy and gliding characteristics of the flexor digitorum superficialis tendon and its adjacent SSCT with high-resolution ultrasound (15 MHz). Our hypotheses were that tendon and SSCT are distinguishable by ultrasound and that their velocities during tendon excursion are different. Qualitative ultrasound analysis of a flexor tendon and its SSCT was performed on five cadaver wrists and correlated to respective findings after anatomical study of the same cadavers. Quantitative Doppler velocity analysis of eight cadaver wrists was done to assess the sliding movement of the tendon and its SSCT within the carpal tunnel. No significant difference was found between the thickness of SSCT measured by ultrasound and that measured directly after dissection. The SSCT moved slower than its flexor tendon. The SSCT velocities were statistically different from the tendon velocities (t-test, p>0.001). High-resolution ultrasound is a very precise method to display the anatomy of the tendon and SSCT within the carpal tunnel, and their different velocities can be detected with Doppler. Noninvasive assessment of the thickness and velocity of the tenosynovium in carpal tunnel syndrome by high-resolution sonography might be a new diagnostic tool for disorders affecting the SSCT, especially carpal tunnel syndrome.
Root canal instruments for manual use: cutting efficiency and instrumentation of curved canals (1995)

The cutting efficiency of different endodontic hand instruments and the effects of instrumentation on curved canal shape were investigated under standardized experimental conditions using an automatic testing device. Cutting efficiency in rotary motion was assessed by determination of the maximum penetration depth of the instruments into a cylindrical canal in a special resin block (size 25 and size 35 instruments). Changes in canal shape were determined by instrumentation of standardized canals (42 degrees curvature) incrementally from size 15 to size 35. Except in the case of one instrument, size 35, in both sizes tested flexible instruments reached significantly (P < 0.05) greater maximum penetration depths than conventional reamers or K-files. Changes in the canal shape differed significantly between the different instruments in 13 of the 14 measuring points. Drastic undesirable changes in the canal shape (e.g. straightening or zip and elbow) occurred after instrumentation with reamers and K-files, but these changes were less noticeable after instrumentation with flexible instruments with conventional tips. After instrumentation with flexible instruments with modified tips there were few undesirable changes in shape. The conclusion could be drawn that flexible instruments, especially those with modified tips, were clearly superior to conventional reamers and K-files with regard to cutting efficiency and instrumentation of curved canals.
New antimicrobials from an epigenetics based fungal metabolite screening program (2015)

Microbial natural products have historically played an important role in both antibacterial and antiparasitic drug discovery. However, with emerging drug resistance as a global threat to nearly all current antimicrobial treatments on the market, new discovery efforts are needed with increasing urgency. Mangrove endophytic fungi, known as a source of great biological and chemical diversity, were investigated in a large epigenetics based screening program. Cultured under control and epigenetically modified conditions, isolates were extracted and submitted for biological assay against the ESKAPE pathogens, the tropical disease causing parasite Leishmania donovani, and the meningoencephalitis causing amoeba Naeglaria fowlerii. The chemical investigation of one active organism identified in this way yielded a suite of new antimicrobial compounds. Herein, the structure elucidation and biological profiles of these new compounds will be discussed.
Vehicle vibration damping method in the induced repulsion type magnetically suspended railway vehicle (1982)

First Page
Strain Difference in Photoreceptor Cell Death After Retinal Detachment in Mice (2014)

Photoreceptor cell death after RD was significantly different among the three strains, suggesting the presence of genetic factors that affect photoreceptor cell death after RD.
Shadow-routing based dynamic algorithms for virtual machine placement in a network cloud (2013)

We consider a shadow routing based approach to the problem of real-time adaptive placement of virtual machines (VM) in large data centers (DC) within a network cloud. Such placement in particular has to respect vector packing constraints on the allocation of VMs to host physical machines (PM) within a DC, because each PM can potentially serve multiple VMs simultaneously. Shadow routing is attractive in that it allows a large variety of system objectives and/or constraints to be treated within a common framework (as long as the underlying optimization problem is convex). Perhaps even more attractive feature is that the corresponding algorithm is very simple to implement, it runs continuously, and adapts automatically to changes in the VM demand rates, changes in system parameters, etc., without the need to re-solve the underlying optimization problem “from scratch”. In this paper we focus on the minmax-DC-load problem. Namely, we propose a combined VM-toDC routing and VM-to-PM assignment algorithm, referred to as Shadow scheme, which minimizes the maximum of appropriately defined DC utilizations. We prove that the Shadow scheme is asymptotically optimal (as one of its parameters goes to 0). Simulation confirms good performance and high adaptivity of the algorithm. Favorable performance is also demonstrated in comparison with a baseline algorithm based on VMware implementation [7], [8]. We also propose a simplified - “more distributed” - version of the Shadow scheme, which performs almost as well in simulations.
Progressive Barcodes (2012)

Barcodes are a familiar data-carrying mark printed onto physical items such as packaging, labels, magazines, etc. Many consumers, retailers, and distributors are routinely reading them with their mobile devices. We introduce the four-dimensional Progressive Barcode which is a printed mark that does not take up more real estate as it is used to advance a workflow. Adding progressive information to a barcode allows it to change through time—supporting many different information lifecycles.
Detection of human T-cell leukemia/lymphoma virus, type II, in a patient with large granular lymphocyte leukemia (1992)

We studied a patient with large granular lymphocyte (LGL) leukemia for evidence of human T-cell leukemia/lymphoma virus (HTLV) infection. Serum from this patient was positive for HTLV-I/II antibodies by enzyme-linked immunosorbent assay (ELISA) and was confirmed positive in Western blot and radioimmunoprecipitation assays. Results of a synthetic peptide-based ELISA showed that the seropositivity was caused by HTLV-II and not HTLV-I infection. Analyses of enzymatic amplification of DNA from bone marrow sections using the polymerase chain reaction (PCR) were positive for HTLV-II specific gag, pol, env, and pX gene sequences. Cloning and sequencing of amplified products showed that the HTLV-II pol and pX sequences in patient DNA differed from the sequences of 17 other HTLV-II isolates examined in our laboratory. HTLV infection may have a role in some patients in the pathogenesis of LGL leukemia.
Error Performance of Chaotic Digital Code-Divison Multiple Access (CDMA) Systems (1998)

Chaotic digital code-division multiple access ((CD) 2 MA) systems are new types of communication systems using chaotic carriers. (CD) 2 MA had found applications in both wireless and other communication systems. In this paper we study the error performance of chaotic digical code-division multiple access ((CD) 2 MA) systems used in both wireless environment and cable networks. We present first the details of the interleave mode of the (CD) 2 MA. When a (CD) 2 MA system works in the interleave mode, each of its transmitters only transmits signals during a portion of the bit duration of the message signal. The total interference level is thus reduced which in turn increases the channel capacity. The relationship between the bit error rate (BER) and the interleave rate is studied in both the synchronous (CD) 2 MA system used in cable systems, and the asynchronous (CD) 2 MA system used in wireless environments. Our simulation results show that in a cable system the synchronous (CD) 2 MA system can support 1.5 times more channel capacity than synchronous CDMA systems, and double the channel capacity of CDMA systems in wireless environments.
Synthesis and Drug Complexation Studies with β-Cyclodextrins Fluorinated on the Primary Face (1999)

ABSTRACT Three fluorinated β-cyclodextrin derivatives, namely 5, 9 and 12, were prepared with the hope that the fluorine reporter group may assist in direct evaluation of the complexation properties of these potential drug carriers. Two of the synthesized derivatives, the previously reported monofluoro-β-cyclodextrin 9 and the novel trifluoroethylthio-β-cyclodextrin 12, displayed reasonable aqueous solubility and thus were suitable for drug-cyclodextrin complexation studies. Preliminary NMR results (1H and 19F) on the host-guest complex formation of both of these cyclodextrin derivatives with amantidine, a therapeutic agent employed in the treatment of Influenza A infections, are also presented.
Decentralized Privacy-Preserving Platform for Clinical Data Sharing and Analysis (2019)

Collection and management of clinical data for administration and analysis is a time-consuming and complex task, especially when multiple data providers been involved. Even if people are willing to take on the burden for it, there is still no mature solution to protect data privacy for distributed data providers. Distributed ledger is an emerging technology that supports decentralized data sharing and management. Based on this, we present a platform which enables distributed and truthful data collection and serves privacy-preserving needs in clinical data management. Our system, built on Hyperledger Fabric, used smart contract to execute data aggregation and provide basic analysis methods. The system used ledger and world status to record data access history and other metadata. This decentralized platform enables data providers to proactively share and protect their data, Thus can simplify clinical data collection procedure and promote efficient collaboration between providers.
Effect of the coexistence on the replication of striped jack nervous necrosis virus (SJNNV) and red-spotted grouper nervous necrosis virus (RGNNV) using an <i>in vitro</i> approach (2014)

Viral nervous necrosis virus (VNNV) is the aetiological agent of viral nervous necrosis (VNN), a widespread disease affecting different marine and freshwater fish species. Striped jack nervous necrosis virus (SJNNV) and red-spotted grouper nervous necrosis virus (RGNNV) are the only genotypes of the Betanodavirus genus recorded in the Iberian Peninsula to date, but a high percentage of wild specimens simultaneously carrying both genotypes has been recently reported. The coexistence of the two viruses may affect the course of both viral infections. In the present study, viral genome quantification by two absolute real-time PCR protocols has been performed to characterise the effect of the RGNNV-SJNNV coexistence (coinfection and superinfection) on the replication of each genotype in E-11 cells. This is the first study showing the effect of the coexistence on the viral replication of two genotypes within the Betanodavirus genus. The results obtained in vitro showed the partial inhibition of SJNNV replication by the coexistence with RGNNV, whereas RGNNV replication was favoured in coinfection or superinfection with SJNNV.
Analysis of Cognitive Load -- Importance of EEG Channel Selection for Low Resolution Commercial EEG Devices (2014)

Measurement of cognitive load using brain signalsis an important area of research in human behavior and psychology. Recently, there have been attempts to use low cost, commercially available Electroencephalogram (EEG) devices for the analysis of the cognitive load. Due to the reduced number of leads, these low resolution devices pose major challenges in signal processing as well as in feature extraction. In this paper, we investigate the significant leads or channels that are useful for the analysis of the cognitive load. We use a standard matching test and n-back memory test imparting low and high cognitive loads respectively. The investigation is based on the analysis of variance (ANOVA) of Alpha and Theta frequency band signals for various combinations of leads. Comparisons have been done between the previously reported leads and those obtained using a few feature selection algorithms. Results indicate that for a given stimulus, though the significant leads are very much dependent on the subjects, the leads corresponding to the left frontal lobe and right parieto-occipital lobe are in general most significant across majority of subjects for analysis of the cognitive load.
Synthesis and activity optimization of herbicidal substituted 4-aryl-1,2,4-triazole-5(1H)-thiones (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and activity optimization of herbicidal substituted 4-aryl-1,2,4-triazole-5(1H)-thionesKirk A. Simmons, John A. Dixson, Blaik P. Halling, Ernest L. Plummer, Marjorie J. Plummer, John M. Tymonko, Robert J. Schmidt, Mike J. Wyle, Charles A. Webster, and . et al.Cite this: J. Agric. Food Chem. 1992, 40, 2, 297–305Publication Date (Print):February 1, 1992Publication History Published online1 May 2002Published inissue 1 February 1992https://pubs.acs.org/doi/10.1021/jf00014a027https://doi.org/10.1021/jf00014a027research-articleACS PublicationsRequest reuse permissionsArticle Views114Altmetric-Citations18LEARN 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
The SCL Gene Is Formed from a Transcriptionally Complex Locus (1990)

We describe the structural organization of the human SCL gene, a helix-loop-helix family member which we believe plays a fundamental role in hematopoietic differentiation. The SCL locus is composed of eight exons distributed over 16 kb. SCL shows a pattern of expression quite restricted to early hematopoietic tissues, although in malignant states expression of the gene may be somewhat extended into later developmental stages. A detailed analysis of the transcript(s) arising from the SCL locus revealed that (i) the 5' noncoding portion of the SCL transcript, which resides within a CpG island, has a complex pattern of alternative exon utilization as well as two distinct transcription initiation sites; (ii) the 5' portions of the SCL transcript contain features that suggest a possible regulatory role for these segments; (iii) the pattern of utilization of the 5' exons is cell lineage dependent; and (iv) all of the currently studied chromosomal aberrations that affect the SCL locus either structurally or functionally eliminate the normal 5' transcription initiation sites. These data suggest that the SCL gene, and specifically its 5' region, may be a target for regulatory interactions during early hematopoietic development.
Microencapsulation of pesticides by interfacial polymerization utilizing isocyanate or aminoplast chemistry† (1998)

Interfacial polymerization microcapsulation processes based on isocyanate or aminoplast chemistry, where all wall-forming reactants are placed in the dispersed oil phase are described. Emphasis is placed on mechanism of interfacial reactions, physical nature of the resulting membranes and methods used to vary membrane permeability. Pesticide microcapsule formulations can be used to reduce mammalian toxicity and extend activity, to control evaporation, to reduce phytotoxicity, to protect pesticide from rapid environmental degradation, to reduce leaching and to reduce pesticide levels in the environment. Examples are provided to demonstrate how pesticide performance characteristics can be altered using this type of formulation. © 1998 Society of Chemical Industry
Sample introduction in capillary supercritical fluid chromatography using sequential density gradient focussing and solvent venting (1991)

Abstract A technique was developed for large volume sample introduction in capillary supercritical fluid chromatography. A 20‐cm length of 200‐μm i.d. capillary tubing was used as precolumn. The precolumn temperature could be easily controlled by passing an electrical current through an electrically conductive paint coated on its outer surface. During injection, the sample solvent was vented from the precolumn with CO 2 (gas) at 32 atm, while the precolumn was kept at room temperature. Solutes were transferred onto the head of the analytical column as a narrow band by density gradient focussing, which was established with (a) a temperature gradient along the precolumn, (b) a rapid expansion of CO 2 from supercritical fluid to gas, and (c) a temperature difference between the precolumn and the analytical column. This injection approach minimized solute mass discrimination and could be easily performed.
Mechanisms of Antimalarial Drug Action and Resistance (2014)

This chapter talks about the modes of action and mechanisms of Plasmodium falciparum resistance to the antifolate drugs sulfadoxine-pyrimethamine (SP), pyrimethamine, and cycloguanil, as well as the quinoline-based drugs, notably chloroquine (CQ), mefloquine (MFQ), and quinine (QN). Antifolates comprise a group of drugs that work through inhibition of folate metabolism of various organisms, including malaria parasites. In all Plasmodium species, as well as other protozoa and some plants, dihydrofolate reductase (DHFR) exists as a bifunctional enzyme that includes thymidylate synthase (TS), which forms deoxythymidylate (dTMP) from deoxyuridylate, while another substrate, methylenetetrahydrofolate, is converted to dihydrofolate (DHF). Resistance to DHFR inhibitors, including pyrimethamine and cycloguanil, arose soon after their deployment as antimalarials. As an alternative to SP, a combination of dapsone with chlorcycloguanil, administered as its prodrug chlorproguanil, has recently been developed. Chloroquine use began worldwide in the late 1940s, and for several decades, this drug remained the gold standard in the prevention and treatment of uncomplicated malaria. Mechanistic models relating pH-dependent physiological changes in relation to CQ resistance (CQR) have recently seen intriguing yet contradictory developments. Direct evidence in support of a determining role for pfcrt in CQR first came from transfection studies showing that coexpression of mutant pfcrt in CQ-sensitive (CQS) parasites produced low-level, VP-reversible CQR. Focused and applied efforts from the academic, industrial, funding, and health care sectors on a significantly greater scale are vital to achieving any success in reducing the devastating impact that malaria maintains on the poorest nations of this world.
Ruthenium Olefin Metathesis Initiators Bearing Chelating Sulfoxide Ligands (2009)

New ruthenium olefin metathesis initiators bearing sulfoxide moieties are described. The complexes were synthesized by the reaction of indenylidene ruthenium complexes Ind-II and Ind-II′ with different (2-vinyl)phenyl sulfoxides. These compounds show no catalytic activity at room temperature, but exhibit increased activity at elevated temperature. Preliminary studies on the influence of electronic and steric factors on the catalytic activity are presented.
Directed self-assembly of liquid crystalline blue-phases into ideal single-crystals (2017)

Chiral nematic liquid crystals are known to form blue phases-liquid states of matter that exhibit ordered cubic arrangements of topological defects. Blue-phase specimens, however, are generally polycrystalline, consisting of randomly oriented domains that limit their performance in applications. A strategy that relies on nano-patterned substrates is presented here for preparation of stable, macroscopic single-crystal blue-phase materials. Different template designs are conceived to exert control over different planes of the blue-phase lattice orientation with respect to the underlying substrate. Experiments are then used to demonstrate that it is indeed possible to create stable single-crystal blue-phase domains with the desired orientation over large regions. These results provide a potential avenue to fully exploit the electro-optical properties of blue phases, which have been hindered by the existence of grain boundaries.