gebhart/patrepeval huggingface dataset:
Evidence for the Flavor Changing Neutral Current Decays $B \to K\ell6+\ell^-$ and $B \to K*\ell^+\ell^-$ (2002)

We present preliminary results from a search for the rare, flavor-changing neutral current decays B to K l+ l- and B to K* l+ l-, where l+ l- is either an e+ e- or mu+ mu- pair. The data sample comprises (84.4 +- 0.9) X 10e6 upsilon(4S) to B B-bar decays (77.8 /fb) collected with the BaBar detector at the PEP-II B factory. For B to K l+ l-, we observe a signal with estimated significance of 4.4 sigma and obtain B(B to K l+ l-) = (0.78 +0.24 -0.20 +0.11 -0.18) X 10e-6 (averaged over l = e and mu). For B to K* l+ l-, we observe an excess of events over background with estimated significance of 2.8 sigma. We obtain B(B to K* l+ l-) = (1.68 +0.68 -0.58 +-0.28) X 10e-6 and the 90% C.L. upper limit B(B to K* l+ l-) &lt; 3.0 X 10e-6.
Low-cost 10-gb/s optical receiver module using a novel plastic package and a passive alignment technique (2005)

A new low-cost 10-Gb/s optical receiver module constructed using a novel plastic package is proposed. Passive alignment using a glass V-groove substrate and an edge-illuminated refracting-facet photodiode (RFPD) was employed to reduce cost. Instead of a conventional GaAs IC, a Si-bipolar preamplifier IC was mounted on the package to reduce power consumption. High-speed signal lines with a bandwidth of more than 10 GHz were realized using a three-dimensional electromagnetic-field analysis. For the fabricated module, a 3-dB detection bandwidth of 7.7 GHz and a sensitivity of less than -14 dBm at 10 Gb/s were achieved. To confirm the reliability of the fabricated module, a damp-heat test without bias voltage and a temperature-cycling test were performed. The results show that the optical receiver module, if covered with silicone resin, has the ability to withstand humidity and thermal stress.
Flowering also has to end: knowns and unknowns of reproductive arrest in monocarpic plants (2023)

All flowering plants adjust their reproductive period for successful reproduction. Flower initiation is controlled by a myriad of intensively studied factors, so it can occur in the most favorable conditions. However, the end of flowering is also a controlled process, required to optimize the size of the offspring and to maximize resource allocation. Reproductive arrest was described and mainly studied in the last century by physiological approaches, but it is much less understood at the genetic or molecular level. In this review, we present an overview of recent progress in this topic, fueled by highly complementary studies that are beginning to provide an integrated view of how the end of flowering is regulated. In this emerging picture, we also highlight key missing aspects that will guide future research and may provide new biotechnological avenues to improve crop yield in annual plants.
Breakdown-limited endurance in HZO FeFETs: Mechanism and improvement under bipolar stress (2022)

Breakdown is one of main failure mechanisms that limit write endurance of ferroelectric devices using hafnium oxide-based ferroelectric materials. In this study, we investigate the gate current and breakdown characteristics of Hf 0.5 Zr 0.5 O 2 /Si ferroelectric field-effect transistors (FeFETs) by using carrier separation measurements to analyze electron and hole leakage currents during time-dependent dielectric breakdown (TDDB) tests. Rapidly increasing substrate hole currents and stress-induced leakage current (SILC)-like electron currents can be observed before the breakdown of the ferroelectric gate insulator of FeFETs. This apparent degradation under voltage stress is recovered and the time-to-breakdown is significantly improved by interrupting the TDDB test with gate voltage pulses with the opposite polarity, suggesting that defect redistribution, rather than defect generation, is responsible for the trigger of hard breakdown.
Lightweight Design Method for Bike Frames Using Topology Optimization under Multiple Loads (2023)

Mobility is a complex transportation consisting of not only frames but also seats, sensors, and steering systems. Among them, the frame is an important structure that determines the safety and performance of the device as a part that supports the load by combining all other components and receives external impact. It is necessary to study the skeletal design of the frame of mobility devices to achieve a safe and simple structure. This study proposed a conceptual design method for a skeletal mobility frame. An optimized frame design was investigated for multiple loads using a topology optimization technique in automotive parts design. Finite element modeling was conducted by measuring the actual model, and finite element analysis (FEA) was performed. Post-processing was performed along with FEA. Furthermore, finite factor analysis was performed on the post-processed model and was compared with the conceptual model. Results of the study revealed that compared with the conceptual model, the weight of the design model decreased by 93.7%. This process was carried out through computer modeling and computer simulation, and it was possible to avoid separate prototyping and evaluation. Furthermore, Through this research process, the optimal skeletal structure was extruded based on the optimal topology design results for multiple loads. During the optimization process, the maximum strain and stress satisfied the yield condition of the material, proving the safety of the structure. It is believed that this research process can be used for designing other mobilty frames that require an engineering design method.
TRAPID: an efficient online tool for the functional and comparative analysis of de novoRNA-Seq transcriptomes (2013)

Transcriptome analysis through next-generation sequencing technologies allows the generation of detailed gene catalogs for non-model species, at the cost of new challenges with regards to computational requirements and bioinformatics expertise. Here, we present TRAPID, an online tool for the fast and efficient processing of assembled RNA-Seq transcriptome data, developed to mitigate these challenges. TRAPID offers high-throughput open reading frame detection, frameshift correction and includes a functional, comparative and phylogenetic toolbox, making use of 175 reference proteomes. Benchmarking and comparison against state-of-the-art transcript analysis tools reveals the efficiency and unique features of the TRAPID system. TRAPID is freely available at http://bioinformatics.psb.ugent.be/webtools/trapid/.
Three Metal (1,4,8,11-Tetraazacyclotetradecane) Halide Salts (1996)

Attempts to synthesize [M([14]aneN4)][M′X4] chain systems (M,M′ = divalent metal ion, [14]aneN4 = 1,4,8,11-tetraazacyclotetradecane, X = Cl, Br) yielded three M([14]aneN4)X2.xH2O salts. The structures of these three salts, dibromo(1,4,8,11-tetraazacyclotetradecane-N,N′,N′′,N′′′)copper(II), [CuBr2(C10H24N4)], dichloro(1,4,8,11-tetraazacyclotetradecane-N,N′,N′′,N′′′)manganese(II)-dichloro(1,4,8,11-tetraazacyclotetradecane-N,N′,N′′,N′′′)nickel(II)-water (0.66/0.34/6), [Mn0.66Ni0.34Cl2(C10H24N4)].6H2O, and dichloro(1,4,8,11-tetraazacyclotetradecane-N,N′,N′′,N′′′)cobalt(III)-dichloro(1,4,8,11-tetraazacyclotetradecane-N,N′,N′′,N′′′)manganese(II)–chloride–water (0.5/0.5/0.5/5.5), [Co0.5Mn0.5Cl2(C10H24N4)]Cl0.55.5H2O, are described.
Speech coding using ISI coded quantization (2002)

Describes a speech coder based on the intersymbol interference coded quantizer (ICQ). The ICQ is a structured vector quantizer that can realize both boundary and granular gains for sources with memory. It is the quantization dual of the intersymbol interference coder-a transmission scheme for channels with memory. The authors have studied two different suboptimal ICQ codebook search algorithms for speech coding and find that the performance of the ICQ based speech coder is very good at rates over 13 kbps but degrades rapidly at lower rates.
Systematic Characterization of Glycosyltransferases Involved in Plant Cell Wall Biosynthesis (2009)

Author(s): Scheller, Henrik V.; Oikawa, Ai; Yin, Lan; Knoch, Eva; Geshi, Naomi; Rautengarten, Carsten; Manabe, Yuzuki; Manisseri, Chithra
A lexical approach for classifying malicious URLs (2015)

Given the continuous growth of malicious activities on the internet, there is a need for intelligent systems to identify malicious web pages. It has been shown that URL analysis is an effective tool for detecting phishing, malware, and other attacks. Previous studies have performed URL classification using a combination of lexical features, network traffic, hosting information, and other strategies. These approaches require time-intensive lookups which introduce significant delay in real-time systems. In this paper, we describe a lightweight approach for classifying malicious web pages using URL lexical analysis alone. Our goal is to explore the upper-bound of the classification accuracy of a purely lexical approach. We also aim to develop a scalable approach which could be used in a real-time system. We develop a classification system based on lexical analysis of URLs. It correctly classifies URLs of malicious web pages with 99.1% accuracy, a 0.4% false positive rate, an F1-Score of 98.7, and 0.62 milliseconds on average. Our method also outperforms similar approaches when classifying out-of-sample data.
Suppression of Anger and Gastric Emptying in Patients with Functional Dyspepsia (1992)

Psychologic distress and gastric motor dysfunction have both been implicated in the pathogenesis of functional (non-ulcer) dyspepsia (FD). This study assesses the association between psychologic factors and gastric emptying in 28 FD patients. Subjects completed an extensive range of psychologic questionnaires and underwent dual-isotope scintigraphic assessment of solid and liquid gastric emptying. Attempts to resist, control, suppress, and hold in anger, to adopt a fighting spirit whilst dealing with chronic stressors, and manifest unhappiness were predictors of prolonged gastric emptying. These findings suggest that psychologic factors may be important in the aetiology of gastric stasis and subsequent upper gastrointestinal symptoms in patients with functional dyspepsia.
High-Speed Tandem Submerged Arc Welding of Thin Steel Panels (2007)

For thin steel, high-speed tandem, narrow groove submerged arc welding procedures were developed with improved flux copper backing using advanced waveform power supplies and controlled weld joint root openings. Preferred parameters produced welds that met Navy mechanical property requirements, improved weld bead quality, and doubled/tripled welding productivity.
Characterization of pit formation in III-nitrides grown by metalorganic chemical vapor deposition (2002)

Pit formation in III-nitride heterostructures such as InGaN/GaN and AlGaN/GaN grown by metalorganic chemical vapor deposition was characterized by transmission electron microscopy. The pit formation related with V defects has been reported in the InGaN/GaN multiple quantum well with high In composition [Appl. Phys. Lett. 79, 215 (2001)]. In this letter, we found that the mechanism of pit formation strongly depends on the indium and aluminum compositions in InxGa1-xN and AlxGa1-xN layers, respectively. By increasing the indium composition, the origin of pits is changed from the vertex of threading dislocations to the stacking mismatch boundaries induced by stacking faults and the three-dimensional island growth at the initial stage due to the large lattice mismatch. By increasing the aluminum composition, the origin of the pits also varied from the surface undulation due to the elastic misfit strain to the vertex of threading dislocations. In addition, several inversion domains observed in III nitrides result in pit formation in the surface of films.
THE PREPARATION OF 1-(α-AMINOALKYL) - BENZOTRIAZOLES IN AQUEOUS SOLUTION (1989)

(1989). THE PREPARATION OF 1-(α-AMINOALKYL) - BENZOTRIAZOLES IN AQUEOUS SOLUTION. Organic Preparations and Procedures International: Vol. 21, No. 2, pp. 135-139.
The molecular dynamics and reactivity of tris(inden-1-yl)silane: an NMR spectroscopic and X-ray crystallographic study † (2000)

The synthesis, structural characterisation (NMR, X-ray), molecular dynamics and reactivity of tris(inden-1-yl)silane, 9, are discussed. Spectroscopic data obtained from 2D-EXSY NMR experiments clearly demonstrate that the title compound is stereochemically non-rigid, even at temperatures where line broadening is not evident (ΔG‡ ≈ 24 kcal mol−1). The dynamic behaviour of 9 is rationalised in terms of successive [1,5]-silicon shifts; indeed, the isoindene intermediates generated in this process have been sequentially trapped by tetracyanoethylene, yielding tris(5,6-benzo-2,2,3,3-tetracyanobicyclo[2.2.1]hept-5-en-7-yl)silane,14. The silane, 9, has been transformed into tris(inden-1-yl)hexylsilane, 19, via hydrosilylation with hex-1-ene in the presence of Wilkinson’s catalyst. Compound 14 was quantitatively converted into the crystallographically characterised tris(5,6-benzo-2,2,3,3-tetracyanobicyclo[2.2.1]hept-5-en-7-yl)silanol, 17, by treatment with water, or into tris(5,6-benzo-2,2,3,3-tetracyanobicyclo[2.2.1]hept-5-en-7-yl)fluorosilane, 22, by the addition of either HBF4 or Ph3C+PF6−.
Status of HIV-infected patients classified as lost to follow up from a large antiretroviral program in southwest Nigeria (2019)

Most of the interviewed cohort that was LTFU were truly disengaged from care and not on ART. Interventions are required to address processes of re-engagement of patients that are LTFU.
Rate‐Dependent Indentation Response of Structural Ceramics (2010)

Static and dynamic (high‐rate) indentation hardness values are determined for ZrO 2 , SiC, and Si 3 N 4 ceramics. While the static hardness is determined using a conventional Vickers tester, the dynamic hardness is determined using a custom‐designed tester that can produce a single indent within a 100‐μs duration. The results indicated that the dynamic hardness is 7%–10% greater than the static hardness, depending on the type of ceramic material. Indentation‐induced crack length is also appreciably smaller under dynamic indentation compared with static indentation. However, when the influence of increased hardness (i.e., reduced indentation size) under dynamic indentation is factored into the crack length measurements, the difference in crack length between static and dynamic indents disappears for SiC and Si 3 N 4 . In the ZrO 2 ceramic, the difference in crack lengths continues to persist, indicating that ductile behavior (transformation toughening) may be a factor for rate‐dependent fracture characteristics in ceramics in this strain rate regime.
Meta-Analysis of Genome-Wide Scans Provides Evidence for Sex- and Site-Specific Regulation of Bone Mass (2006)

This large-scale meta-analysis provided evidence for replication of several QTLs identified in previous studies and also identified a QTL on chromosome 18p11-q12.3, which had not been detected by individual studies. However, despite the large sample size, none of the individual loci identified reached genome-wide significance.
Evidence that COMT genotype and proline interact on negative-symptom outcomes in schizophrenia and bipolar disorder (2016)

Elevated peripheral proline is associated with psychiatric disorders, and there is evidence that proline is a neuromodulator. The proline dehydrogenase (PRODH) gene, which encodes the enzyme that catalyzes proline catabolism, maps to human chromosome 22q11.2, a region conferring risk of schizophrenia. In the Prodh-null mouse, an interaction between elevated peripheral proline and another 22q11.2 gene, catechol-O-methyltransferase (COMT), on neurotransmission and behavior has been reported. We explored the relationship between fasting plasma proline levels and COMT Val(158)Met genotype on symptoms (positive, negative and total) in schizophrenia patients. In an exploratory study we also examined symptom change in patients with bipolar disorder. There was a significant interaction between peripheral proline and COMT on negative symptoms in schizophrenia (P<0.0001, n=95). In COMT Val/Val patients, high proline was associated with low Scale for the Assessment of Negative Symptom (SANS) scores. In contrast, high proline was associated with high SANS scores in patients carrying a Met allele. The relationship between proline and COMT also appears to modify negative symptoms across psychiatric illness. In bipolar disorder, a significant interaction was also observed on negative-symptom change (P=0.007, n=43). Negative symptoms are intractable and largely unaddressed by current medications. These data indicate a significant interaction between peripheral proline and COMT genotype, influencing negative symptoms in schizophrenia and bipolar disorder. That high proline has converse effects on symptoms by COMT genotype, may have implications for therapeutic decisions.
IntermolecularCyclization Reactions to form Carbocycles (2009)

Abstract General Introduction [2 + 2] Cycloaddition Reactions D iels– A lder Reactions [6 + 4] Cycloaddition Reactions [8 + 2] Cycloaddition Reactions [2 + 2 + 2] Cycloaddition Reactions
Flight Test Validation Verification of @AIR Distributed Electric Propulsion Aircraft Dynamic Model (2022)

In this work, a six degree of freedom (6 DoF) dynamic model is developed for an aircraft utilizing distributed electric propulsion (DEP). The autonomous testbed for artificial intelligent research (@AIR) unmanned aerial system (UAS) uses six tractor electric motors distributed along the leading edge of the main wing and one pusher electric motor mounted to the fuselage. In addition to dramatic reduction in energy required per passenger-mile, DEP concept can allow for several added capabilities on an aircraft such as shortening takeoff distance, adding new propulsors for controlling an aircraft, and increasing the adaptability of an aircraft (e.g., to failure of control surfaces or motors). Modeling the propulsive forces and moments of the DEP motors was done using thrust data available on the manufacturer website. A method was developed for modeling the changes in aerodynamic forces and moments due to operation of the DEP motors. The method is based on modeling the changes in dynamic pressure along the span of the wing due to operation of the DEP motors. Experimental data was gathered using a pressure sensor to model the changes in dynamic pressure across the span of the wing at different DEP motor throttle settings. The @AIR UAS was flight tested with specific flight maneuvers to study the possibility of using the DEP motors for lateral/directional control of the aircraft. Flight test data was used to improve, validate, and verify aircraft’s dynamic model. Inaccuracies were present in the simulation results in this work as could be expected since low fidelity methods were used in the simulator development. However, depending on the application and the desired level of accuracy, the presented modeling methods may provide a lower cost alternative that is of practical use. The developed simulator may be useful for developing controllers that utilize the DEP motors for controlling the aircraft.
Cyclodextrin and Catalysis in Liquid Phase: Recent Advances and Future Opportunities (2019)

International audience
Urinary metabolomics of pregnant women at term: a combined GC/MS and NMR approach (2014)

The metabolomics analysis evidenced clusters of metabolites involved in labour condition able to discriminate between urine samples collected before the onset and during labour, potentially offering the promise of a robust screening test.
Imaging Polarimeter Arrays for Near-Millimeter Waves (1984)

An integrated-circuit antenna array has been developed that images both polarization and intensity. The array consists of a row of antennas that lean alternately left and right, creating two interlaced sub-arrays that respond to different polarizations. The arrays and the bismuth bolometer detectors are made by a photoresist shadowing technique that requires only one photolithographic mask. The array has measured polarization at a wavelength of 800 µm with an absolute accuracy of 0.8° and a relative precision of 7 arc min. and has demonstrated nearly diffraction-Iimited resolutiort of a 20° step in polarization.
Predicting renal recovery after liver transplant with severe pretransplant subacute kidney injury: The impact of warm ischemia time (2016)

Identifying which liver transplantation (LT) candidates with severe kidney injury will have a full recovery of renal function after liver transplantation alone (LTA) is difficult. Avoiding unnecessary simultaneous liver-kidney transplantation (SLKT) can optimize the use of scarce kidney grafts. Incorrect predictions of spontaneous renal recovery after LTA can lead to increased morbidity and mortality. We retrospectively analyzed all LTA patients at our institution from February 2002 to February 2013 (n = 583) and identified a cohort with severe subacute renal injury (n = 40; creatinine <2 mg/dL in the 14-89 days prior to LTA and not on renal replacement therapy [RRT] yet, ≥2 mg/dL within 14 days of LTA and/or on RRT). Of 40 LTA recipients, 26 (65%) had renal recovery and 14 (35%) did not. The median (interquartile range) warm ischemia time (WIT) in recipients with and without renal recovery after LTA was 31 minutes (24-46 minutes) and 39 minutes (34-49 minutes; P = 0.02), respectively. Adjusting for the severity of the subacute kidney injury with either Acute Kidney Injury Network or Risk, Injury, Failure, Loss, and End-Stage Kidney Disease criteria, increasing WIT was associated with lack of renal recovery (serum creatinine <2 mg/dL after LTA, not on RRT), with an odds ratio (OR) of 1.08 (1.01-1.16; P = 0.03) and 1.09 (1.01-1.17; P = 0.02), respectively. For each minute of increased WIT, there was an 8%-9% increase in the risk of lack of renal recovery after LTA. In a separate cohort of 98 LTA recipients with subacute kidney injury, we confirmed the association of WIT and lack of renal recovery (OR, 1.04; P = 0.04). In LT candidates with severe subacute renal injury, operative measures to minimize WIT may improve renal recovery potentially avoiding RRT and the need for subsequent kidney transplant. Liver Transplantation 22 1085-1091 2016 AASLD.
Photochemistry of cyclopentenones: tricyclo[4.3.2.0]undecenones and tricyclo[3.3.3.0]undecenones (1980)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotochemistry of cyclopentenones: tricyclo[4.3.2.0]undecenones and tricyclo[3.3.3.0]undecenonesRobert L. Cargill, Norton P. Peet, David M. Pond, William A. Bundy, and A. Bradford SearsCite this: J. Org. Chem. 1980, 45, 20, 3999–4001Publication Date (Print):September 1, 1980Publication History Published online1 May 2002Published inissue 1 September 1980https://pubs.acs.org/doi/10.1021/jo01308a010https://doi.org/10.1021/jo01308a010research-articleACS PublicationsRequest reuse permissionsArticle Views56Altmetric-Citations1LEARN 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