gebhart/patrepeval huggingface dataset:
Correction d'un brachygnathisme mandibulaire chez un chiot berger allemand (2015)

EnglishA puppy suffering from mandibular brachygnathism, partially corrected by a coronal reduction of both mandibular deciduous canine teeth at 2 and a half months of age, was successfully treated at 7 months os age by orthodontic correction using resin slip plates. This technique avoids coronal reduction or removal of permanent canines, which are very invasive methods that may affect the future life of the puppy. It consists of layering and resizing resin plates allowing the canine teeth to slide to their physiological position. Aesthetic and functional integrity can thus be permanently restored. francaisUn chiot atteint d'un brachygnathisme mandibulaire, partiellement corrige par une reduction coronaire des deux canines mandibulaires de lait a 2 mois et demi, est traite avec succes a 7 mois par correction orthodontique de type pose de plans de glissement en resine. Cette technique evite la reduction coronaire ou l'extraction des canines definitives, methodes tres invasives et pouvant alterer la vie future du chiot. Elle consiste en la pose et la taille de resine permettant aux canines de glisser jusqu'a leur position physiologique. L'integrite esthetique et fonctionnelle peut ainsi etre definitivement retablie.
Allelopathic effects of endophyte‐infected perennial ryegrass extracts on white clover seedlings (1999)

Abstract Two glasshouse experiments were conducted to evaluate possible allelopathic effects of perennial ryegrass/endophyte ( Lolium perennel Neotyphodium lolii) associations on white clover (Trifolium repens) . The influence of between‐species competition, environmental stress, and soil fauna was eliminated by the use of a sterile sand nutrient culture technique to sustain potted clover seedlings, to which aqueous extracts from moisture‐stressed perennial ryegrass pseudostem were applied. In Experiment 1, extracts from two ryegrass cultivars (‘Grasslands Pacific’ and ‘Grasslands Nui’), each hosting in separate seed lines two endophyte strains (ES, WT), suppressed clover growth (mean suppression 22% at 100% concentration) relative to extracts from endophyte‐free lines of the same cultivars. The degree of suppression increased with increasing extract concentration, differed between cultivars, but did not differ between endophyte strains. In Experiment 2, extracts at 100% concentration from a third ryegrass cultivar (‘Grasslands Ruanui’), hosting in separate seed lines three endophyte strains (AR4, ES, WT), suppressed clover growth by a mean of 27% relative to extracts from an endophyte‐free line of this cultivar (range 11 to 47%), with significant differences between strains. The endophyte strains differed in three known endophyte alkaloids, viz peramine, ergovaline, lolitrem B, but in this study none of these alkaloids could solely account for the allelopathic response. The suppression of clover by all ryegrass cultivar/endophyte strain associations tested indicates that clover suppression is not confined to the specific associations used in previous studies, and that further testing of new associations is warranted as variation in the degree of allelopathy existed, being dependant on endophyte strain and host ryegrass cultivar.
Emerging mechanisms of asymmetric stem cell division (2018)

The asymmetric cell division of stem cells, which produces one stem cell and one differentiating cell, has emerged as a mechanism to balance stem cell self-renewal and differentiation. Elaborate cellular mechanisms that orchestrate the processes required for asymmetric cell divisions are often shared between stem cells and other asymmetrically dividing cells. During asymmetric cell division, cells must establish asymmetry/polarity, which is guided by varying degrees of intrinsic versus extrinsic cues, and use intracellular machineries to divide in a desired orientation in the context of the asymmetry/polarity. Recent studies have expanded our knowledge on the mechanisms of asymmetric cell divisions, revealing the previously unappreciated complexity in setting up the cellular and/or environmental asymmetry, ensuring binary outcomes of the fate determination. In this review, we summarize recent progress in understanding the mechanisms and regulations of asymmetric stem cell division.
The Chemistry of Organic Medicinal Products (1950)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA HomeNew OnlineCurrent IssueFor Authors Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) Podcasts Clinical Reviews Editors' Summary Medical News Author Interviews More JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA journal
Multimode fiber optic sensors (1982)

Sperry Research Center and Sperry Corporation have been actively developing fiber optic sensors for a variety of military and commercial applications. Multimode technology has been the preferred approach because appropriate fiber optic components are commercially available. Because of the challenging nature of the problem, a significant portion of the research at Sperry Research Center has centered on methods for producing fiber optic hydrophones. An up-to-date summary will be presented indicating the concepts and performance achieved at Sperry Research on fiber optic sensors. The emphasis of the presentation will be on fiber optic hydrophones.
A Visual Mining System for Theme Development Evolution Analysis of Scientific Literature (2010)

Theme development evolution analysis of literature is a significant tool to help the scientific scholars find and study the frontier problems more efficiently. This paper designs and develops a visual mining system for theme development evolution analysis to deal with the large number of literature information. The analysis of related themes based on sub-themes, together with the dynamic threshold strategy are adopted for improving the accuracy of system. Experiments results prove that correlations of themes obtained from the system are accurate and achieve better practical effect in comparison with that of our early work.
Optical Coherence Multiplexing For Interprocessor Communications (1990)

The development of an optical circuit that multiplexes gigabit-per-second electronic data streams into a very broad bandwidth (greater than 10 Gbit/s) optical signal would greatly enhance interprocessor communications in a parallel computer. One possibility that we are investigating is coherence multiplexing. In this method, time delays exceeding the coherence time of the light source are used to achieve multiplexing. We have analyzed the limitations of coherence multiplexing for high-speed data links. For the geometry that we are investigating, the analysis shows that the signal decreases inversely as the square of the number of channels. Noise sources include photon shot noise, excess noise (classical optical field fluctuations) and detector noise. A suitable optical source must have a smooth broad spectrum. Superluminescent diodes or edge emitting diodes are the best candidates. We show how all these factors affect the total information transfer rate. An integrated optical circuit for coherence multiplexing is being designed and built. This device is an array of four Mach-Zehnder interferometers integrated on a lithium niobate substrate. The differential delays will be achieved using proton exchange. Each interferometer will have two sets of electrodes, one for signal modulation and a second for fine adjustments of the delay.
Analysis of magnetic fields produced far from electrical power lines (2002)

A simple and general method is developed for analyzing the magnetic fields produced by power lines at distances large in comparison to the spacing between the line's phase conductors. Magnetic fields produced far from conventional power lines have remarkably simple properties. Formula for the fields produced by various conventional and unconventional power line configurations are presented. Included are line designs characterized by reduced magnetic field levels. Errors in the formulae are less than +or-10% at the edge of a typical power transmission right-of-way.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Manganese(II)-Catalyzed Esterification of N-β-Hydroxyethylamides (2015)

A catalyst system of manganese with 2,2-bipyridine for amide alcoholysis of <i>N</i>-β-hydroxyethylamides is described. This protocol enabled selective cleavage of the amide bond through a mechanism involving sequential <i>N</i>,<i>O</i>-acyl rearrangement and transesterification.
Top-Down Quantitative Proteomics Identified Phosphorylation of Cardiac Troponin I as a Candidate Biomarker for Chronic Heart Failure (2011)

The rapid increase in the prevalence of chronic heart failure (CHF) worldwide underscores an urgent need to identify biomarkers for the early detection of CHF. Post-translational modifications (PTMs) are associated with many critical signaling events during disease progression and thus offer a plethora of candidate biomarkers. We have employed a top-down quantitative proteomics methodology for comprehensive assessment of PTMs in whole proteins extracted from normal and diseased tissues. We systematically analyzed 36 clinical human heart tissue samples and identified phosphorylation of cardiac troponin I (cTnI) as a candidate biomarker for CHF. The relative percentages of the total phosphorylated cTnI forms over the entire cTnI populations (%P(total)) were 56.4 ± 3.5%, 36.9 ± 1.6%, 6.1 ± 2.4%, and 1.0 ± 0.6% for postmortem hearts with normal cardiac function (n = 7), early stage of mild hypertrophy (n = 5), severe hypertrophy/dilation (n = 4), and end-stage CHF (n = 6), respectively. In fresh transplant samples, the %P(total) of cTnI from nonfailing donor (n = 4), and end-stage failing hearts (n = 10) were 49.5 ± 5.9% and 18.8 ± 2.9%, respectively. Top-down MS with electron capture dissociation unequivocally localized the altered phosphorylation sites to Ser22/23 and determined the order of phosphorylation/dephosphorylation. This study represents the first clinical application of top-down MS-based quantitative proteomics for biomarker discovery from tissues, highlighting the potential of PTMs as disease biomarkers.
Multiple factors are required for poly(A) addition to a mRNA 3' end. (1988)

Polyadenylation of pre-mRNAs in the nucleus involves a specific endonucleolytic cleavage, followed by the addition of approximately 200 adenylic acid residues. We have assayed HeLa nuclear extracts for the activity that catalyzes the poly(A) addition reaction. The authenticity of the in vitro assay was indicated by the observation that the poly(A) tract added in vitro is approximately 200 nucleotides in length. We have fractionated nuclear extracts in order to define components involved in specific poly(A) addition. No single fraction from DEAE-Sephacel chromatography of a HeLa nuclear extract possessed the specific poly(A) addition activity. However, if the various fractions were recombined, activity was restored, indicating the presence of multiple components. Further fractionation revealed the presence of at least two factors necessary for the poly(A) addition reaction. The reconstituted system retains the characteristics and specificity seen in the crude extract. Additional purification of one of the factors strongly suggests it to be a previously characterized poly(A) polymerase which, when assayed in the absence of the other factor, can add AMP to an RNA terminus but without specificity. Thus, the other component of the reaction may provide specificity to the process. In contrast to the 3' cleavage reaction, the poly(A) addition machinery does not possess an essential RNA component, as assayed by micrococcal nuclease digestion, nor do anti-Sm sera inhibit the reaction. Thus, the total process of formation of a polyadenylated mRNA 3' end is complex and requires the concerted action of distinct nuclear components.
A newly developed oval-shaped port device (E•Z ACCESS Oval type) for use in reduced port surgery: initial clinical experiences with cholecystectomy. (2013)

We recently developed an oval-shaped E•Z Access device designed exclusively for use with the LAP PROTECTOR™ Oval type device (Hakko Co. Ltd., Tokyo, Japan). The transverse abdominal opening diameter made by round-shaped (Alexis® Wound Retractor, Applied Medical, Rancho Santa Margarita, CA; and LAP PROTECTOR™ Round type) and oval-shaped (LAP PROTECTOR™ Oval type) wound retractors was measured and compared in 5 patients with cholecystolithiasis. Each device was placed through a single 25-mm longitudinal umbilical incision, and the length of trocar separation was compared. LESS cholecystectomy was then performed using the oval-shaped E•Z ACCESS/LAP PROTECTOR™. The transverse abdominal opening diameter was maximized with the LAP PROTECTOR™ Oval type device. The average distance between the working-ports for the glove method, round-shaped, and oval-shaped E•Z ACCESS/LAP PROTECTOR™ devices in the 25-mm umbilical incisions were 20 ± 0.8 mm, 24 ± 1.5 mm, and 35 ± 0.8 mm, respectively. Wider trocar separation was achieved using the oval-shaped device, making the surgical procedures easier to perform. No perioperative port-related or surgical complications were observed. LESS cholecystectomy using the E•Z ACCESS Oval type device was found to be technically feasible. The Oval type device appears to allow for wider trocar separation, thereby reducing stress on the surgeon, ensuring patient safety, and providing cosmetic benefits.
Synthesis and high thermoelectric efficiency of Zintl phase YbCd2−xZnxSb2 (2009)

We synthesized a series of polycrystalline YbCd2−xZnxSb2 (x=0, 0.4, 0.8, 1, 1.2, 1.6, and 2) samples and measured their thermoelectric properties. Thermoelectric figure of merit ZT at 700K is higher than 1.0 for Cd-rich samples (x=0, 0.4, 0.8, and 1.0) and Zn substitute of Cd in YbCd2Sb2 can easily tune carrier concentration and reduce thermal conductivity. When x=0.4, sample exhibits the highest power factor (12–20μWcm−1K−2), the lowest lattice thermal conductivity (1.0Wm−1K−1 at 300K), highest ZT (1.2 at 700K), and best “self-compatibility.” The first principles calculations were performed to study the influences of bonding and electronic structures on physical properties.
Letters (1971)

RETURN TO ISSUEPREVLetterNEXTLettersProfessional responsibilityROGER G. COOKView Author Information Hightstown, N.J.Cite this: Chem. Eng. News 1971, 49, 18, 4–6Publication Date (Print):May 3, 1971Publication History Published online7 November 2010Published inissue 3 May 1971https://pubs.acs.org/doi/10.1021/cen-v049n018.p004https://doi.org/10.1021/cen-v049n018.p004letterACS PublicationsCopyright © 1971 AMERICAN CHEMICAL SOCIETY. This publication is available under these Terms of Use. This publication is free to access through this site. Learn MoreArticle Views56Altmetric-Citations-LEARN 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 PDF (450 KB) Get e-Alerts
Development and Performance Evaluation of Hierarchical Quadrature Amplitude Modulation (HQAM) for Image Transmission over Wireless Channels (2011)

Asymmetric modulation techniques like Quadrature Amplitude Modulation system is one of the key techniques in building a broadband mobile communication network because of increasing shortage of wireless communication channels. It provides alternative means of Equal Error Protection (EEP) to the transmitted bits without increasing the bandwidth. Hierarchical Quadrature Amplitude Modulation (HQAM), a modification of QAM, provides Unequal Error Protection (UEP) to the transmitted bits for increasing the protection to the sensitive and non-sensitive bits and is also efficient in power and bandwidth. This paper presents an analysis and simulation of HQAM in order to bring out its merits over QAM. The simulation is carried out using MATLAB & Simulink for different values of modulation parameter. A Simulink-based simulation system is designed for the transmission of gray image as test image over AWGN wireless channel.
ACT: Attack Countermeasure Trees for Information Assurance Analysis (2010)

In modeling system response to security threats, researchers have made extensive use of state space models, notable instances including the partially observable stochastic game model proposed by Zonouz et.al. The drawback of these state space models is that they may suffer from state space explosion. Our approach in modeling defense makes use of a combinatorial model which helps avert this problem. We propose a new attack-tree (AT) model named attack-countermeasure trees (ACT) based on combinatorial modeling technique for modeling attacks and countermeasures. ACT enables one to (i) place defense mechanisms in the form of detection and mitigation techniques at any node of the tree, not just at the leaf nodes as in defense trees (DT) (ii) automate the generation of attack scenarios from the ACT using its mincuts and (iii) perform probabilistic analysis (e.g. probability of attack, attack and security investment cost, impact of an attack, system risk, return on attack (ROA) and return on investment (ROI)) in an integrated manner (iv) select an optimal countermeasure set from the pool of defense mechanisms using a method which is much less expensive compared to the state-space based approach (v) perform analysis for trees with both repeated and non-repeat events. For evaluation purposes, we suggest suitable algorithms and implement an ACT module in SHARPE. We demonstrate the utility of ACT using a practical case study (BGP attacks).
Performance tradeoffs in multithreaded processors (1992)

An analytical performance model for multithreaded processors that includes cache interference, network contention, context-switching overhead, and data-sharing effects is presented. The model is validated through the author's simulations and by comparison with previously published simulation results. The results indicate that processors can substantially benefit from multithreading, even in systems with small caches, provided sufficient network bandwidth exists. Caches that are much larger than the working-set sizes of individual processes yield close to full processor utilization with as few as two to four contexts. Smaller caches require more contexts to keep the processor busy, while caches that are comparable in size to the working-sets of individual processes cannot achieve a high utilization regardless of the number of contexts. Increased network contention due to multithreading has a major effect on performance. The available network bandwidth and the context-switching overhead limits the best possible utilization.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Heuristics for semi-external depth first search on directed graphs (2002)

Computing the strong components of a directed graph is an essential operation for a basic structural analysis of it. This problem can be solved by twice running a depth-first search (DFS). In an external setting, in which all data can no longer be stored in the main memory, the DFS problem is unsolved so far. Assuming that node-related data can be stored internally, semi-external computing does not make the problem substantially easier. Considering the definite need to analyze very large graphs, we have developed a set of heuristics which together allow the performance of semi-external DFS for directed graphs in practice. The heuristics have been applied to graphs with very different graph properties, including "web graphs" as described in the most recent literature and some large call graphs from ATT. Depending on the graph structure, the program is between 10 and 200 times faster than the best alternative, a factor that will further increase with future technological developments.
Elimination of inference channels by optimal upgrading (2002)

An inference channel exists if it is possible for a low-clearance user to infer high-classification data from low-classification data. Inference channels can be blocked by upgrading the security classification of some of the low-level data. The task of eliminating inference channels is formulated for solution by the Davis-Putnam theorem-proving procedure. The procedure is augmented to search for solutions with minimum total upgrade cost.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Dancing‐to‐Music Character Animation (2006)

Abstract In computer graphics, considerable research has been conducted on realistic human motion synthesis. However, most research does not consider human emotional aspects, which often strongly affect human motion. This paper presents a new approach for synthesizing dance performance matched to input music, based on the emotional aspects of dance performance. Our method consists of a motion analysis, a music analysis, and a motion synthesis based on the extracted features. In the analysis steps, motion and music feature vectors are acquired. Motion vectors are derived from motion rhythm and intensity, while music vectors are derived from musical rhythm, structure, and intensity. For synthesizing dance performance, we first find candidate motion segments whose rhythm features are matched to those of each music segment, and then we find the motion segment set whose intensity is similar to that of music segments. Additionally, our system supports having animators control the synthesis process by assigning desired motion segments to the specified music segments. The experimental results indicate that our method actually creates dance performance as if a character was listening and expressively dancing to the music. Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three‐Dimensional Graphics and Realism Animation; J.5 [Arts and Humanities]: Performing Arts Music