gebhart/patrepeval huggingface dataset:
An improved search algorithm for the design of multiplierless FIR filters with powers-of-two coefficients (1989)

An improved algorithm is presented for the discrete optimization of finite-impulse-response (FIR) digital filter coefficients which are represented by a canonic signed-digit (CSD) code, i.e., numbers representable as sums or differences of powers-of-two. The proposed search algorithm allocates an extra nonzero digit in the CSD code to the larger coefficients to compensate for the very nonuniform nature of the CSD coefficient distribution. This results in a small increase in the filter complexity; however, the improvement in the frequency response is substantial. The coefficient optimization is performed in two stages. The first stage searches for an optimum scale factor and the second stage consists of a local bivariate search in the neighborhood of the scaled and rounded coefficients.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
3D Body Scanning has Suitable Reliability: An Anthropometric Investigation for Garment Construction (2017)

3D Body Scanning provides access to a greater breadth and depth of anthropometric data for industry applications and scientific research than at any other point in history. However, while the potential of this technology for revolutionising industrial and scientific practices has been established, little exists addressing its appropriateness in terms of reliability within recognised allowable error. To address this issue, this study investigates the degree to which 3D Body Scanning can produce reliable anthropometric measurements for use in garment construction and scientific research. 27 participants were repeatedly scanned using a SizeStream Body Scanner five consecutive times to find out the variation in reliability between instances of data capture. The variance to three Standard Deviations was then compared to established allowable error guidelines to assess suitability of the measurements attained. The main outcome of this study is that 3D Body Scanning can achieve suitable reliability to be used in garment construction, tailoring, and scientific research; providing 99.73% confidence in the suitability of extracted dimensions in 49% of the most commonly used body measurements. However, other measurements achieved less exceptional reliability, and therefore use of traditional measurement methods need to be considered carefully when generating tailored garments or comparing anthropometric data sets from 3D Body Scanners. As a consequence of this study, 3D Body Scanning shows suitable reliability for most garment construction and anthropometric research tasks.
Relaxation of trabecular meshwork and ciliary muscle by release of nitric oxide. (1994)

The data indicate that an increase of intracellular cGMP by application of cGMP and organic nitrate or non-nitrate vasodilators induces relaxation of the bovine trabecular meshwork and ciliary muscle. Thus, nitric oxide is a cotransmitter of smooth muscle relaxation in the chamber angle and may be involved in the regulation of aqueous humor dynamics.
The noise power spectrum in CT with direct fan beam reconstruction (2010)

The noise power spectrum (NPS) is a useful metric for understanding the noise content in images. To examine some unique properties of the NPS of fan beam CT, the authors derived an analytical expression for the NPS of fan beam CT and validated it with computer simulations. The nonstationary noise behavior of fan beam CT was examined by analyzing local regions and the entire field-of-view (FOV). This was performed for cases with uniform as well as nonuniform noise across the detector cells and across views. The simulated NPS from the entire FOV and local regions showed good agreement with the analytically derived NPS. The analysis shows that whereas the NPS of a large FOV in parallel beam CT (using a ramp filter) is proportional to frequency, the NPS with direct fan beam FBP reconstruction shows a high frequency roll off. Even in small regions, the fan beam NPS can show a sharp transition (discontinuity) at high frequencies. These effects are due to the variable magnification and therefore are more pronounced as the fan angle increases. For cases with nonuniform noise, the NPS can show the directional dependence and additional effects.
CT Findings in Acid Lipase Deficiency (1983)

Acid lipase deficiency leads to the abnormal accumulation of cholesteryl esters and triglycerides in many tissues. It is manifested clinically in two forms: Wolman disease, which is usually fatal in infancy, and cholesteryl ester storage disease (CESD), which is clinically milder. One case of each is presented. In the patient with Wolman disease, computed tomography (CT) showed an enlarged liver of diminished density and enlarged adrenals with cortical calcification. Computed tomography of the patient with CESD showed an enlarged liver of normal density and normal adrenals. In vitro CT density is inversely related to cholesterol content. However, CT is unreliable in assessing liver cholesterol in these patients due to their poor nutrition and concomitant changes in liver glycogen and fat.
Effective and accurate use of difference in mean volume backscattering strength to identify fish and plankton (2002)

Acoustic species identification is very important for fisheries' operations and surveys. One of the most promising methods for identification is to utilize the difference of mean volume backscattering strengths (ΔMVBS) among frequencies. Improvement of this technique is the aim of this study. The ΔMVBS must be obtained for a common observation range among frequencies so that the difference can be attributed solely to frequency characteristics of the sound scattering of targets organisms. We derived the common observation range of at least up to 150 m for our quantitative echosounder operating at 38 and 120 kHz with the same beam widths of 8.5°. We related ΔMVBS data obtained off northeastern Japan to specific marine organisms combined with the swimming depth and water temperature information. The echoes with small ΔMVBS (−1 dB<ΔMVBS<4 dB) were attributed to the walleye pollock ( Theragra chalcogramma ) and the echoes with large ΔMVBS (>10 dB) to krill ( Euphausia pacifica ). The changing pattern of ΔMVBS suggested complicated behaviour between species such as predator and prey interaction. In order to obtain reliable and detailed information the integration cell should be small and the ΔMVBS should be displayed as an echogram in an absolute colour scale.
Coupled‐line 180° hybrid coupler (2005)

Abstract A new 180° hybrid‐coupler structure based on coupled lines is proposed. It consists of two quarter‐wave coupled‐line sections and one half‐wave transmission‐line section. The coupled outputs are always in phase with the input signal for all ports, and the through or direct outputs are either in phase or out of phase from the input signal, depending on the input ports. It has a simple structure and wide bandwidth, and can be implemented over a wide range of coupling values. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 45: 173–176, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20761
Las bibliotecas universitarias y las bases de datos en CD-ROM (1989)

Un Servicio fundamental en toda Biblioteca Universitaria es el Servicio de Informacion Automatirada creado para facilitar las consultas a las grandes Bases de Datos. Una alternativa interesante para este servicio son las Bases de Datos en CD-ROM por su gran capacidad de almacenamiento, su perdurabilidad y su abaratamiento en los costes. Se estudian sus problemas de tamano y actualizacion. Se presenta un estado de la oferta actual de las Bases de Datos en CD-ROM y su distribucion por naterias, asi como los programas encargados de gestionar y efectuar las consultas. Termina con un recorrido por la produccion actual de Bases de Datos CD-ROM en los distintos paises.
Monolithic single-mode Nd:YAG ring laser (1984)

Globes and Brienza1 showed that it is possible to achieve single-mode operation of Nd:YAG without etalons if the laser resonator is constructed as a unidirectional ring. Zhou et al.2 showed that excellent open loop frequency stability is possible if a Nd:YAG laser is constructed with the mirrors applied directly to the laser medium (monolithic construction). We describe a new laser design which combines these two advantages. We call this design the monolithic-isolated single-mode end pumped-ring (MISER) laser. We hope to use a laser of this design as the local oscillator for coherent Doppler radar operating at 1.06 µm. Other possible applications are in coherent communications or ring laser inertial guidance.
Staurosporine induces apoptosis of melanoma by both caspase-dependent and -independent apoptotic pathways (2004)

Staurosporine has long been used in vitro as an initiator of apoptosis in many different cell types, but the mechanism involved remains poorly understood. In the present study, we have examined the apoptosis-inducing potential of staurosporine in cultured melanoma cell lines and dissected the staurosporine-induced apoptotic signaling pathway. We report that although staurosporine activated Bax and the mitochondrial caspase-dependent apoptotic pathway, it also induced apoptosis of melanoma by caspase-independent pathways. The caspase-dependent apoptotic pathway was activated relatively soon after exposure to staurosporine and was associated with release of cytochrome c and Smac/DIABLO from mitochondria and cleavage of poly(ADP-ribose) polymerase and inhibitor of caspase-activated DNase. This pathway was inhibitable by broad caspase inhibitors. A second apoptotic pathway that appeared to be involved in late apoptotic events was caspase independent in that inhibitors of caspases did not prevent the late onset of apoptosis. Overexpression of Bcl-2 inhibited the early onset of apoptosis but not the later, caspase-independent pathway. Apoptosis-inducing factor may be responsible for the late apoptotic execution in that its translocation from mitochondria into the nucleus coincided with the late onset of apoptosis and could not be inhibited by either a pan-caspase inhibitor or overexpression of Bcl-2. Our results indicate that staurosporine is able to bypass resistance of melanoma cells to mitochondrial caspase-dependent apoptotic pathways; hence, derivatives of staurosporine may warrant further evaluation either alone or with other apoptosis-inducing agents.
El derecho a la participación de la infancia en los medios de comunicación (2012)

espanolA pesar de que los ninos no tengan derecho al voto, si que tienen derecho a expresar su voz y hacerse oir en relacion con las decisiones que afectan a su propia vida o a la de la comunidad en la que habitan. La propia Convencion de los Derechos del Nino aprobada en 1989 por la Asamblea General de la ONU contempla la participacion infantil como uno de los principales derechos, ligado a la construccion de la ciudadania del nino con el fin de elevarlo a la categoria de miembro competente en la sociedad democratica. Tambien en la legislacion espanola, encontramos en la Ley Organica 1/1996, de Proteccion Juridica del Menor, el derecho a la participacion, asociacion y reunion. Los medios de comunicacion presentan un gran potencial como canal para la participacion de los ninos en la vida publica. Sin embargo, en el ambito de la investigacion, si bien existen muchos estudios relacionados con los usos que hacen los ninos de los medios y la influencia que estos tienen en la infancia, apenas contamos con investigaciones relativas a experiencias de produccion de los ninos como creadores de los contenidos. En el siguiente articulo, recogemos algunas de las conclusiones a las que llega un estudio, enmarcado en el Programa de UNICEF �Ciudades Amigas de la Infancia�, relacionado con la recopilacion de iniciativas de participacion infantil y juvenil en medios de comunicacion en el ambito municipal en Espana EnglishAlthough children are not entitled to vote, do have the right to express their voice and be heard in relation to decisions affecting their own life or the community where they live. The Convention on the Rights of the Child, adopted in 1989 by the UN General Assembly provides for the participation of children as one of the main rights, linked to the construction of the child's citizenship in order to elevate to the level of competent Member democratic society. Also in Spanish law, the right to participation, association and assembly is found in the Organic Law 1/1996, Legal Protection of Minors. The media have great potential as a channel for children's participation in public life. However, in the field of research, although there are many studies related to their use of the media done by children and the influence they have on children, we just research on production experiences of children as creators contents. In the next article, we report some of the conclusions reached by a study, set in the UNICEF program Child Friendly Cities, related to collection efforts on child and youth participation media at the municipal level in Spain
DYT6 dystonia: Mutation screening, phenotype, and response to deep brain stimulation (2010)

Mutations in THAP1, a gene encoding a nuclear pro-apoptotic protein, have been associated with DYT6 dystonia. First reports on the phenotype of DYT6 dystonia show an early onset dystonia with predominant cranio-cervical and laryngeal involvement. Here we assessed the frequency and phenotype of THAP1 mutation carriers in a large Dutch cohort of adult-onset (≥26 years) dystonia (n = 388) and early-onset dystonia (n = 67) patients. We describe the phenotype of DYT6 dystonia patients and their response on GPi DBS. Overall, 3 nonsynonymous heterozygous mutations were detected in the early-onset group (4.5%). Two DYT6 families were identified, showing a heterozygous phenotype. All patients had segmental or generalized dystonia, often associated with profound oromandibular and laryngeal involvement. No nonsynonymous mutations were found in patients with adult-onset focal dystonia. Rare synonymous variants were identified in conserved regions of THAP1, two in the adult-onset cervical dystonia group and one in the control group. Four DYT6 dystonia patients were treated with GPi DBS with moderate to good response on motor function but marginal benefit on speech.
Effects of Subinhibitory Concentrations of Antibiotics on Colonization Factor Expression by Moxifloxacin-Susceptible and Moxifloxacin-Resistant <i>Clostridium difficile</i> Strains (2009)

Recent outbreaks of Clostridium difficile infection have been related to the emergence of the NAP1/027 epidemic strain. This strain demonstrates increased virulence and resistance to the C-8-methoxyfluoroquinolones gatifloxacin and moxifloxacin. These antibiotics have been implicated as major C. difficile infection-inducing agents. We investigated by real-time reverse transcription-PCR the impact of subinhibitory concentrations of ampicillin, clindamycin, ofloxacin, and moxifloxacin on the expression of genes encoding three colonization factors, the protease Cwp84, the high-molecular-weight S-layer protein, and the fibronectin-binding protein Fbp68. We have previously shown in six non-NAP1/027 moxifloxacin-susceptible strains that the presence of ampicillin or clindamycin induced an upregulation of these genes, whereas the presence of fluoroquinolones did not. The objective of this study was to analyze the expression of these genes under the same conditions in four NAP1/027 strains, one moxifloxacin susceptible and three moxifloxacin resistant. Two in vitro-selected moxifloxacin-resistant mutants were also analyzed. Moxifloxacin resistance was associated with the Thr82-->Ile substitution in GyrA in all but one of the moxifloxacin-resistant strains. The expression of cwp84 and slpA was strongly increased after culture with ampicillin or clindamycin in NAP1/027 strains. Interestingly, after culture with fluoroquinolones, the expression of cwp84 and slpA was only increased in four moxifloxacin-resistant strains, including the NAP1/027 strains and one of the in vitro-selected mutants. The overexpression of cwp84 was correlated with increased production of the protease Cwp84. The historical NAP1/027 moxifloxacin-susceptible strain and its mutant appear to be differently regulated by fluoroquinolones. Overall, fluoroquinolones appear to favor the expression of some colonization factor-encoding genes in resistant C. difficile strains. The fluoroquinolone resistance of the NAP1/027 epidemic strains could be considered an ecological advantage. This could also increase their colonization fitness and promote the infection.
Social behavior and cortisol reactivity in children with fragile X syndrome (2005)

Results of the study suggest a unique relation between abnormal gaze behavior and L-HPA mediated stress reactivity in FXS.
PISA: P2P Wi-Fi Internet Sharing Architecture (2007)

The demand for cheap broadband Internet for nomadic users has created a market for Internet sharing. Wi- Fi communities which allow their users to share their wired Internet connections have emerged and become increasingly popular. Organizations like FON promise to provide free wireless Internet access in many places. However, user authentication is the Achilles heel of these systems. A user that allows other community members to use its access point must expect to be held responsible for other users' actions. Moreover, these Wi-Fi sharing systems are often insecure which allows eavesdroppers to gather sensitive information on the wireless link. This work provides efficient, scalable, and secure access control for large Wi-Fi sharing systems. The host identity protocol (HIP) is used as a building block for a solution which supports strong user authentication as well as mobility support for nomadic users. In our presentation, we show the feasibility and effectiveness of this approach by demonstrating the PISA authentication protocol in action.
AC circulating currents suppression in modular multilevel converter (2012)

Modular multilevel converter is a next generation multilevel converters for medium to high voltage conversion applications, such as medium voltage motor drive and high voltage direct current transmission. One potential issue of this type of converter is the AC circulating current, which increases the current stress and brings additional conduction loss to the system. This paper proposes modified control architecture for modular multilevel converters, aiming at suppressing the AC components in the circulating current. Specifically, a proportional-resonant type minor loop is incorporated to regulate the most AC components of the circulating current to zero in addition to the DC regulation loop. The proposed minor loop can also be applied to single phase MMC, which is not available in previous methods. Simulation results for a three-phase MMC operating as an inverter are provided to demonstrate the feasibility of the proposed method.
New type of programmable current-regulated power supply for operation of hollow cathode lamps in a high intensity programmed mode (1974)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew type of programmable current-regulated power supply for operation of hollow cathode lamps in a high intensity programmed modeJames D. Defreese, Terry A. Woodruff, and Howard V. MalmstadtCite this: Anal. Chem. 1974, 46, 11, 1471–1476Publication Date (Print):September 1, 1974Publication History Published online1 May 2002Published inissue 1 September 1974https://pubs.acs.org/doi/10.1021/ac60347a011https://doi.org/10.1021/ac60347a011research-articleACS PublicationsRequest reuse permissionsArticle Views47Altmetric-Citations2LEARN 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
Acceptance and long-term compliance with nCPAP in patients with obstructive sleep apnoea syndrome (1996)

Previous studies have generally shown poor effective long-term compliance with nasal continuous positive airway pressure (nCPAP) in patients with obstructive sleep apnoea syndrome (OSAS). We performed a retrospective study of patients treated with nCPAP for more than one year. Compliance was defined as the average number of hours of nCPAP use per day, where hours of use were obtained from the built-in time counter of the nCPAP device, after deduction of the 10% difference between effective use and time counters previously shown by others. We present data on the first 95 patients for whom results were available. The follow-up period was 784 +/- 366 (mean +/- SD) days for the whole group. Compliance was 5 +/- 1.8 h. For a subgroup of 36 patients, we had data on two consecutive follow-up periods (673 +/- 235 and 390 +/- 147 days for the first and second period, respectively). Compliance remained stable (5.2 +/- 1.5 and 5 +/- 2.3 h, respectively). For the whole group, a significant correlation was found between compliance and sleep fragmentation expressed as the movement arousal index (r = 0.226). During a similar 3 year period, 155 patients with a confirmed diagnosis of OSAS were offered a nCPAP trial. CPAP was actually delivered for home use to 117 patients (76%). During this same 3 year period, only 21 patients out of a total of 192 followed-up in our institution quit treatment, mainly due to intolerance or cure. These results indicate that in a nonselected group of obstructive sleep apnoea syndrome patients a high and stable compliance with nasal continuous positive pressure can be achieved, contradicting recent results of other series.
Monitoring, control and power quality issues of PLC controlled three-phase AC servomotor drive (2012)

Performance evaluation of a three-phase AC servomotor drive having Supervisory Control and Data Acquisition (SCADA) system is presented in this paper. The Supervisory Control on drive is implemented using a Programmable Logic Controller (PLC) to monitor and control the drive performance. Mathematical modeling, simulation and experimental studies have been carried out on the drive system. The drive performance under different operating speed and load conditions is determined. A Human Machine Interface (HMI) for real time operation of the drive is also implemented and described. Operation of AC servo drive in speed mode and its effect on power quality of utility system has been also analyzed for a laboratory prototype servo drive system.