gebhart/patrepeval huggingface dataset:
Livro digital acessível: possibilidades e limites do uso da tecnologia assistiva (2018)

RESUMOA Constituição da República Federativa do Brasil de 1988 assegura o direito de todos à educação, à igualdade de condições de acesso, permanência na escola e à continuidade nos níveis mais elevados de ensino. O Programa Mecdaisy possibilita a geração de livros digitais falados e sua reprodução em áudio, gravado ou sintetizado. Dessa forma, é feita uma reflexão sobre a introdução e continuidade de políticas públicas de orientação e popularização do uso e das ferramentas de socialização que podem ser frentes de ações, tais como: proficiência tecnológica, uso das tecnologias da informação e comunicação, da Tecnologia Assistiva e o Programa Mecdaisy, pois esses recursos podem servir de suporte a atividades para as pessoas adentrarem ao mundo letrado. PALAVRAS-CHAVE: Educação Especial ;Tecnologia Assistiva;Mecdaisy.DIGITAL TALKING BOOKS: POSSIBILITIES AND LIMITS IN USING ASSISTIVE TECHNOLOGY ABSTRACT The Constitution of the Federative Republic of Brazil 1988 describes the right of full access to books for people with visual disabilities, ensuring the right of everyone to education, equal access conditions, staying in school and continuity at the highest levels of education. The Mecdaisy Program enables the generation of digital talking books and playback audio, recorded or synthesized. So, in a reflection on the introduction and continuation of public policy orientation, popularization of the use and socialization tools that can be fronts actions, like technological proficiency, use of information and communication technologies, technology Assistive and Mecdaisy program, because these features may provide support to activities for people step into the world of letters. KEY WORDS: Special Education;Assistive Technology; Mecdaisy.
Application of Viscoelastic Fracturing Fluids in Appalachian Basin Reservoirs (2005)

Abstract The Upper Devonian-age black shale of the Central Appalachian basin has been a major natural gas production reservoir since the initial discovery in 1921. In the ensuing 80 years, an assortment of drilling and completion techniques have been applied to the black shale with varying degrees of success. Recent efforts at improving well productivity have focused on improving the hydraulic fracturing operations, especially the minimization of fluid damage to the targeted shale reservoirs. The development of fluid systems with lower polymer loadings has been an important achievement in this effort. Recently, polymer-free viscoelastic surfactant-based (VES) fluid systems have been used in the hydraulic fracturing industry as a final step in the elimination of polymer-based damage. A statistical study of the application of a VES foam fracturing fluid in the Central Appalachian basin was performed. The study compared recent results of polymer-free treatments to traditional completions throughout the field. Results from the polymer-free completions were compared to immediate offsets drilled in the same time frame and completed in correlated intervals. In general, the use of polymer-free fluids improved well productivity, when compared to wells that were completed with a conventional polymer-based fluid. The study also compared the economic impact of the use of VES completion fluids from both an operations and production perspective.
An improved minimum variance beamforming applied to plane-wave imaging in medical ultrasound (2016)

Minimum variance beamformer (MVB) is an adaptive beamformer which provides images with higher resolution and contrast in comparison with non-adaptive beamformers like delay and sum (DAS). It finds weight vector of beamformer by minimizing output power while keeping the desired signal unchanged. We used the eigen-based MVB and generalized coherence factor (GCF) to further improve the quality of MVB beamformed images. The eigen-based MVB projects the weight vector with a transformation matrix constructed from eigen-decomposing of the array covariance matrix that increases resolution and contrast. GCF is used to emphasis on coherence part of images that improves the resolution. Four different datasets provided by IUS 2016 beamforming challenge are used to evaluate the proposed method. In comparison with DAS with rectangular weight vector, our method improved contrast about 8.52 dB and 6.20 dB for simulation and experimental contrast phantoms, respectively. It also enhanced lateral (axial) resolution about 87% (40%) and 73% (21%) for simulated and experimental resolution phantoms, respectively.
Miniaturized Intracavitary Forward-Looking Ultrasound Transducer for Tissue Ablation (2019)

Having a small aperture (2 mm), the intracavitary device is capable of ablating a bio tissue in 5 min with a relatively low electric power (<17 W).
Anterior eye tissue morphology: Scleral and conjunctival thickness in children and young adults (2016)

The sclera and conjunctiva form part of the eye's tough, protective outer coat, and play important roles in the eye's mechanical protection and immune defence, as well as in determining the size and shape of the eye globe. Advances in ocular imaging technology now allow these tissues in the anterior eye to be imaged non-invasively and with high resolution, however there is a paucity of data examining the dimensions of these tissues in paediatric populations. In this study, we have used optical coherence tomography (OCT) imaging to examine the normal in vivo thickness profile of the anterior sclera and overlying conjunctiva in 111 healthy young participants, including a large proportion of paediatric subjects. We demonstrate that the thickness of the anterior sclera varies significantly with measurement location and meridian. Tissue thickness also varied significantly with age, with younger subjects exhibiting significantly thinner scleras and significantly greater conjunctival thickness. Males were also found to exhibit significantly greater scleral thickness. Refractive error however was not significantly associated with either scleral or conjunctival thickness in this population. These findings provide new data describing the normative dimensions of anterior eye tissues in children and the factors that can influence these dimensions in young populations.
Development of a sensitive quantitative focal assay for human immunodeficiency virus infectivity (1988)

Accurate and sensitive quantitation of infectious human immunodeficiency virus (HIV) has been difficult to achieve. In this report, a quantitative focal immunoassay (FIA) for HIV was developed using human HeLa cells rendered susceptible to HIV infection by introduction of the CD4 gene via a retrovirus vector. Infected cells were identified by using human anti-HIV antibodies or mouse monoclonal antibodies specific for HIV together with secondary fluorescein- or peroxidase-conjugated antibody specific for mouse or human immunoglobulins. The assay identified cells infected with either wild-type or culture-adapted HIV isolates and was capable of detecting 1 positive cell in 10(6) cells. The FIA was also effective at detecting cell-free HIV, and in contrast to assays using A3.01, CEM, and other human leukemia cells, the FIA detected most wild-type HIV isolates. HIV neutralization could be determined by using the FIA, and two monoclonal antibodies reactive with HIV gp120 were found to neutralize only the LAV-IIIB strain of HIV. These monoclonal antibodies, as well as antibodies in serum samples from patients with acquired immune deficiency syndrome, were able to inhibit the spread of HIV infection in human lymphocyte suspension cultures but not in CD4-positive HeLa cells growing attached to plastic dishes.
A new species of Calliostoma from New Zealand (Mollusca: Gastropoda: Trochoidea) (1994)

Calliostoma (Maurea) simulans n.sp. is described.
A Curved-Beam Bistable Mechanism (2004)

This paper presents a monolithic mechanically-bistable mechanism that does not rely on residual stress for its bistability. The typical implementation of this mechanism is two curved centrally-clamped parallel beams, hereafter referred to as "double curved beams". Modal analysis and finite element analysis (FEA) simulation of the curved beam are used to predict, explain, and design its bistable behavior. Microscale double curved beams are fabricated by deep-reactive ion etching (DRIE) and their test results agree well with the analytic predictions. Approaches to tailor the bistable behavior of the curved beams are also presented.
A NEW PHASE MATCHABLE NONLINEAR OPTIC CRYSTAL L-ABGININE PHOSPHATE MONOHYDRATE (1983)

In search of new organic nonlinear optic crystals, aromatic compounds with donor and acceptor substituents are extensively studied. Some new crystals with large nonlinear coefficient have been reported. This kind of crystals is usually not useful in ultraviolet region, because the distance between energy levels in conjugated π bonds gets smaller due to the strong conjugation effect. In exploring new organic nonlinear optic crystals used in ultraviolet region, we have discovered a new phase matchable nonlinear optic organic crystal --L-arginine phosphate monohydrate. Of the size 13×35×35 mm~3 LAP single crystals with good optical quality have been grown by the cooling and evaporating methods. LAP crystal belongs to monoclinic system; its space group is P2_1. It shows the following proper ties: (1) transparency range over 10% extends from 230nm to 1940 nm; over 50% extends from 240nm to 1500 nm; (2) when basic wave is 1064 nm and harmonic wave is 532 nm, the calculated phase matching curved surface belongs to Hobden 's ninth type; (3) SHG intensity of LAP crystal in phase matching direction (θ=57°ρ=-13°phase matching type II) is 3.5 times greater than that of KDP crystal (θ=59°ρ=0°type II). It is worth to note that this direction of LAP crystal will not be one of its maximum effective nonlinear coefficient; (4) when basic waves are 1064 nm and 532 nm, the sum-frequency effect has been observed; (5) the optical damage threshold is higher than 1 GW/cm~2·s at 1064 nm; (6) the stability towards atmospheric moisture is excellent. As a result, LAP crystal is a promising nonlinear optic crystal.
Transmission Lines for Short-Wave Radio Systems* (1932)

The requirements imposed on transmission lines by short-wave radio systems are discussed, and the difference in the requirements for transmitting and receiving purposes is emphasized. Various line types are discussed, particular attention being given to concentric tube lines and balanced two-wire lines. The concentric tube line is particularly valuable in receiving stations where great directional discrimination is involved and low noise and static pick-up is required. Excellent agreement between calculations and measurements is found for the high-frequency resistance of concentric lines, using the asymptotic skin effect formula of Russell. Other losses in correctly designed concentric tube lines are found to be negligible. Measured losses in two-wire lines are found to be greater than losses predicted by the asymptotic skin effect formula owing, in part, to losses brought about by unbalanced currents. Practical aspects of line construction such as joints, insulation, and provision for expansion with increasing temperature are discussed. Some difficulties encountered in transmission line practice, such as losses due to radiation, reflections from irregularities, effects of weather, and spurious couplings between antenna and line are discussed.
Utility of deep learning super‐resolution in the context of osteoarthritis MRI biomarkers (2019)

2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2020;51:768-779.
Synthesis and biological activities of some new 2-arylamino-4-fluoroarylthiazoles. (1981)

Twenty-one new 2-arylamino-4-fluoroarylthiazoles have been synthesized by the condensation of the appropriate arylthiourea with the corresponding fluorophenacylbromide in ethanol. These new compounds have been characterized by elemental analysis and spectral studies. Some representative compounds have been screened for various biological activities viz. insecticidal, virucidal, bactericidal, fungicidal, herbicidal and antiarthritic.
Genome-Wide Association Study of Classical Hodgkin Lymphoma and Epstein–Barr Virus Status–Defined Subgroups (2012)

Overall, these results provide strong evidence that EBV status is an etiologically important classification of cHL and also suggest that some components of the pathological process are common to both EBV-positive and EBV-negative patients.
Recombinant activated factor VII and tranexamic acid are haemostatically effective during major surgery in factor XI-deficient patients with inhibitor antibodies (2009)

One-third of patients with severe factor XI (FXI) deficiency caused by homozygosity for null alleles develop inhibitor antibodies following exposure to plasma. Haemostasis during surgery is achievable in such patients by recombinant activated factor VII (rFVIIa) at doses used in haemophilia A patients with an inhibitor to FVIII. However, thrombosis has occurred in three of 12 such patients. In this study we discerned whether low-dose rFVIIa would secure haemostasis and cause no thrombosis in patients with severe FXI deficiency and an inhibitor during surgery. In vitro, a very low concentration of rFVIIa (0.24 microg/ml) induced thrombin generation in FXI-deficient plasma quite similarly to 1.9 microg/ml (a concentration that is achieved in patients with haemophilia A and inhibitor after infusion of 80 microg/kg). Based on this finding, a protocol was designed for four patients with severe FXI deficiency and an inhibitor or immunoglobulin A deficiency who underwent five major surgical procedures. This included administration of tranexamic acid from two hours before surgery until seven to 14 days after, and single infusion of low-dose rFVIIa. No excessive bleeding or thrombosis were observed. In conclusion, a single low dose of rFVIIa and tranexamic acid secure normal haemostasis in patients with severe FXI deficiency who can not receive blood products.
Mobile-driven architecture for managing enterprise security policies (2006)

Authentication, access control, and audit (3As) are three fundamental mechanisms in enterprise security management for countering various types of looming threats from both insiders and outsiders. There has been a variety of web-based or desktop systems implementing those mechanisms, but little supports the applicability of mobile devices in their security management. In this paper we present an approach to managing various types of enterprise security policies using mobile devices in order to effectively monitor and defend trusted domains. Specifically, we describe a security architecture for designing and implementing a mobile-enabled solution for enterprise security management, whereby various benefits such as the backup of important security policies or credentials, offline administration, immediate response, and monitoring, can be achieved. We also present a proof-of-concept implementation using Microsoft Active Directory.
A Bayesian approach to speaker adaptation for the stochastic segment model (1992)

Speaker adaptation is frequently used to achieve good speech recognition performance without the high costs associated with training a speaker-dependent model. The main goal of this study is to investigate speaker adaptation for recognizers using multivariate Gaussian densities, specifically, the stochastic segment model. A Bayesian approach is followed, with estimation of the parameters of a speaker-adapted model based on prior densities obtained from speaker-independent data. Experimental results achieve 16% error reduction using mean adaptation with roughly 3 min of speech, nearly half the difference between speaker-independent and speaker-dependent recognition rates.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Identification of Neonatal Hearing Impairment: Ear-Canal Measurements of Acoustic Admittance and Reflectance in Neonates (2000)

This is the first report of wideband YR responses in neonates. Data were acquired in a few seconds, but the responses are highly sensitive to whether the probe is fully sealed in the ear canal. A real-time acoustic test of probe fit is proposed to better address the probe seal problem. The YR responses provide information on middle-ear status that varies over the neonatal age range and that is sensitive to the presence or absence of risk factors, ear, and gender differences. Thus, a YR test may have potential for use in neonatal screening tests for hearing loss.
Programming in Python 3: A Complete Introduction to the Python Language (2008)

Fulfills the immediate market need for those developers seeking to learn this latest evolutionary version of the Python lineage in a succinct, well-written package. Mike Riley, Contributing Editor for Dr. Dobbs Beyond the introduction to programming in Python 3 in the first chapter, if you progress through the first six chapters in sequence, youll be well on your way to taking off with using Python independently. James Pyles, Technical Writer and Author of the blog A Million Chimpanzees A key recommendation for any serious computer library strong in web programming languages. Jim Cox, Midwest Book Review Summerfields book is an excellent source to start learning Python 3. Anthony J. Duben, Computing Reviews A Fully Revised Edition Featuring New Material on Coroutines, Debugging, Testing, Parsing, String Formatting, and More Python 3 is the best version of the language yet: It is more powerful, convenient, consistent, and expressive than ever before. Now, leading Python programmer Mark Summerfield demonstrates how to write code that takes full advantage of Python 3s features and idioms. Programming in Python 3, Second Edition, brings together all the knowledge you need to write any program, use any standard or third-party Python 3 library, and create new library modules of your own. Summerfield draws on his many years of Python experience to share deep insights into Python 3 development you wont find anywhere else. He begins by illuminating Pythons beautiful heart: the eight key elements of Python you need to write robust, high-performance programs. Building on these core elements, he introduces new topics designed to strengthen your practical expertiseone concept and hands-on example at a time. Coverage includes Developing in Python using procedural, objectoriented, and functional programming paradigms Creating custom packages and modules Writing and reading binary, text, and XML files, including optional compression, random access, and text and XML parsing Leveraging advanced data types, collections, control structures, and functions Spreading program workloads across multiple processes and threads Programming SQL databases and keyvalue DBM files Debugging techniquesand using Test Driven Development to avoid bugs in the first place Utilizing Pythons regular expression mini-language and module Parsing techniques, including how to use the third-party PyParsing and PLY modules Building usable, efficient, GUI-based applications Advanced programming techniques, including generators, function and class decorators, context managers, descriptors, abstract base classes, metaclasses, coroutines, and more Programming in Python 3, Second Edition, serves as both tutorial and language reference. It assumes some prior programming experience, and it is accompanied by extensive downloadable example codeall of it tested with Python 3 on Windows, Linux, and Mac OS X.
Effects of ATP-MgCl2 on Myocardial Ischemia-Reperfusion Injury: An In Vivo Experimental Study (2006)

We investigated the effect of ATP-MgCl2 on myocardial hemodynamics and metabolism. The study included 12 mongrel dogs that were randomly divided into 2 groups: the control and the ATP-MgCl2 (study) groups. Following a right thoracotomy, the left anterior descending artery was ligated for 15 min and then reperfusion was performed. After the ischemic period, cardiopulmonary bypass was initiated and the aorta was cross-clamped. ATP-MgCl2 (70+70 mmol/l) 0.25 ml/kg per h was given to the study group at the start of the ischemic period. Hemodynamic and metabolic measurements were obtained at basal, and then after 60, 120, and 180 min of reperfusion Cardiac output values were significantly higher in the study group; at the end of the third hour of reperfusion they were 2370 ± 31 ml/min in the study group and 900 ± 45 ml/min in the control group (P &amp;lt; 0.05). Myocardial Oxygen Extraction (MOE) and Myocardial Lactate Extraction (MLE) values were significantly higher in the control group; at the end of the third hour of the reperfusion MOE values were 50 ± 2 ml in the study group and 55 ± 3 ml in the control group, while MLE values were -0.06 ± 0.02 mmol/ml in the study group and -0.12 ± 0.07 mmol/ml in the control group (P &amp;lt; 0.05). Hemodynamic and metabolic parameters revealed that the use of ATP-MgCl2 might be beneficial in reducing ischemia-reperfusion damage.
Limonoids in Seeds of Karatachi. Poncirus trifoliata. (1991)

Neutral and acidic limonoids in seeds of Karatachi (Poncirus trifoliata) were quantitatively analyzed. The seeds contained ichangin (20 ppm), deacetylnomilin (230 ppm) and limonin (390 ppm). They also contained acidic limonoids, such as deacetylnomilinic acid (2 ppm), isolimonic acid (2 ppm) and isoobacunoic acid (a trace amount). The concetration of total limonoids was quite low as compared to that of citrus seeds.
Collinear Resonance Ionization Spectroscopy of Neutron-Deficient Francium Isotopes (2013)

The magnetic moments and isotope shifts of the neutron-deficient francium isotopes (202-205)Fr were measured at ISOLDE-CERN with use of collinear resonance ionization spectroscopy. A production-to-detection efficiency of 1% was measured for (202)Fr. The background from nonresonant and collisional ionization was maintained below one ion in 10(5) beam particles. Through a comparison of the measured charge radii with predictions from the spherical droplet model, it is concluded that the ground-state wave function remains spherical down to (205)Fr, with a departure observed in (203)Fr (N=116).
Robust DOA Estimation of Harmonic Signals Using Constrained Filters on Phase Estimates (2014)

In array signal processing, distances between receivers, e.g., microphones, cause time delays depending on the direction of arrival (DOA) of a signal source. We can then estimate the DOA from the time-difference of arrival (TDOA) estimates. However, many conventional DOA estimators based on TDOA estimates are not optimal in colored noise. In this paper, we estimate the DOA of a harmonic signal source from multi-channel phase estimates, which relate to narrowband TDOA estimates. More specifically, we design filters to apply on phase estimates to obtain a DOA estimate with minimum variance. Using a linear array and harmonic constraints, we design optimal filters based on estimated noise statistics. Therefore, the proposed method is robust against different noise scenarios. In colored noise, simulation results confirm that the proposed method outperforms an optimal state-of-the-art weighted least-squares (WLS) DOA estimator.