gebhart/patrepeval huggingface dataset:
Code-division multiple access for provision of mobile multimedia services with a geostationary regenerative payload (1999)

The design of a satellite mobile multimedia communication system operating at Ka band and using synchronous CDMA is presented. The air interface described in the paper was derived taking into account the requirements induced by the provision of multimedia services to compact portable and mobile terminals. In order to minimize the complexity of the satellite payload, the concept of partial frequency reuse is introduced. A novel algorithm based on evolutionary theory is derived in order to optimize the corresponding link dimensioning. The satellite payload is described, and techniques reducing the computational requirements are proposed. It is then shown that the on-board complexity associated with the given design is within acceptable technological limits.
Fast-Settling Envelope Detectors (2006)

An approach to the design of two high performance envelope detectors is made in this work. Proposed structures do not need the traditional compensation between keeping and tracking required in these circuits. The procedure relies on using a couple of sample-and-hold detectors and combines them to obtain the envelope of the signal. Simulation results are offered and it is shown the superior performance of the proposed detectors comparing with the conventional ones
Effect of exogenous gastrointestinal peptides containing the C-terminal tetrapeptide of gastrin on calcium, calcitonin and parathormone serum levels in man. (1981)

Gastrointestinal hormones containing the C-terminal tetrapeptide of gastrin are involved in calcium homeostasis. The aim of this study was to investigate: 1) the effect of a standard meal (schedule a) and of a duodenal infusion of 5% aminoacid solution (schedule b) on calcium, CT and PTH serum levels in man; 2) the behaviour of these parameters during I.V. infusions of pentagastrin (mcg 1.5/Kg-hour), sincalide (mcg 0.04/Kg-hour) and caerulein (ng 75/Kg-hour) (schedule c). In order to avoid any possible interference by endogenous secretin release, schedule c was performed in 5 patients previously submitted to total gastrectomy. Schedule a and b were studied in 5 healthy volunteers. After a standard meal a slight increase of CT and PTH was measured. Duodenal infusion of aminoacid was followed by hypocalcaemia and slight but constant rise of CT levels, without significant variations of circulating PTH. Pentagastrin, sincalide and caerulein induced a slight but significant hypocalcaemia and a rise of serum CT levels, together with a significant increase of serum PTH. These findings suggest that peptides containing the C-terminal tetrapeptide of gastrin directly affect calcium homeostasis in the absence of secretin release.
A Low-Complexity Method for Chase-Type Decoding of Reed-Solomon Codes (2006)

In this work we present a low-complexity implementation of Chase-type decoding of Reed-Solomon Codes. In such, we first use the soft-information available at the channel output to construct a test-set of 2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">η</sup> vectors, equival ent in all except the η << n least reliable coordinate positions. We then give an interpolation procedure to construct a set of 2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">η</sup> bivariate polynomials, with the roots of each specified by its corresponding test-vector. Here, test-vector similarity is exploited to share much of the required computation. Finally, we obtain the candidate message from the single z-linear factor of each bivariate polynomial. Although we provide an expression for the direct computation of each candidate message, the complexity of repeating this computation for each interpolation polynomial is prohibitive. We, thus, also present a reduced-complexity factorization (RCF) method to select a single polynomial that, with high probability, contains the correctly decoded message in its z-linear factor. Although suboptimal, the loss in performance of RCF decreases rapidly with increasing code length. We provide extensive simulation results showing that a significant performance increase over traditional hard-decision decoding is achievable with a comparable computational complexity (as implemented with the Berlekamp-Massey Algorithm).
Action recognition using ballistic dynamics (2008)

We present a Bayesian framework for action recognition through ballistic dynamics. Psycho-kinesiological studies indicate that ballistic movements form the natural units for human movement planning. The framework leads to an efficient and robust algorithm for temporally segmenting videos into atomic movements. Individual movements are annotated with person-centric morphological labels called ballistic verbs. This is tested on a dataset of interactive movements, achieving high recognition rates. The approach is also applied on a gesture recognition task, improving a previously reported recognition rate from 84% to 92%. Consideration of ballistic dynamics enhances the performance of the popular Motion History Image feature. We also illustrate the approachpsilas general utility on real-world videos. Experiments indicate that the method is robust to view, style and appearance variations.
Relatos en torno a la desviación de columna (2005)

Las enfermedades crónico-degenerativas han desplazado en orden de importancia al resto de problemas de salud por el impacto que tienen en la población. Los estudios sobre la escoliosis suelen abordar aspectos clínicos, siendo muy escasos los dedicados a conocer las repercusiones de la escoliosis en la calidad de vida de los sujetos y su impacto a nivel emocional y social. Los resultados del presente estudio dan cuenta de las diversas estrategias de convivencia de los sujetos con el padecimiento y la construcción que del mismo se hace en función del contexto social y cultural. Abstract The chronic-degenerative diseases have displaced other health problems according to the social impact they have among people. The research about scoliosis uses to approach just the clinical implications and it is very rare the research dedicated to know the repercussions in the quality of life of the patients and the incidence in the social and emotional level. The results of this research report about the different strategies of these people to live together with suffering and the working-out they do in regard to their social and cultural context. Centro de Trabajo: Sección de Intervención en Salud Pública Dirección General de Salud Pública. Consejería de Sanidad C/Aduana 29, 4ª plta. 28013 Madrid Tf: 91 4265708/ Fax: 91 4265723 Correo electrónico: milagros.ramasco@madrid.org Fecha del Trabajo: 21/02/2005 Palabra Clave: escoliosis, construcción del padecimiento, calidad de vida Key Words: scoliosis, quality of life, suffering processing
Four dimensional hybrid ultrasound and optoacoustic imaging via passive element optical excitation in a hand-held probe (2014)

Ultrasonography and optoacoustic imaging share powerful advantages related to the natural aptitude for real-time image rendering with high resolution, the hand-held operation, and lack of ionizing radiation. The two methods also possess very different yet highly complementary advantages of the mechanical and optical contrast in living tissues. Nonetheless, efficient integration of these modalities remains challenging owing to the fundamental differences in the underlying physical contrast, optimal signal acquisition, and image reconstruction approaches. We report on a method for hybrid acquisition and reconstruction of three-dimensional pulse-echo ultrasound and optoacoustic images in real time based on passive ultrasound generation with an optical absorber, thus avoiding the hardware complexity of active ultrasound generation. In this way, complete hybrid datasets are generated with a single laser interrogation pulse, resulting in simultaneous rendering of ultrasound and optoacoustic images at an unprecedented rate of 10 volumetric frames per second. Performance is subsequently showcased in phantom experiments and in-vivo measurements from a healthy human volunteer, confirming general clinical applicability of the method.
Homomorphic Payment Addresses and the Pay-to-Contract Protocol (2012)

We propose an electronic payment protocol for typical customer-merchant relations which does not require a trusted (signed) payment descriptor to be sent from the merchant to the customer. Instead, the destination "account" number for the payment is solely created on the customer side. This eliminates the need for any encrypted or authenticated communication in the protocol and is secure even if the merchant's online infrastructure is compromised. Moreover, the payment transaction itself serves as a timestamped receipt for the customer. It proves what has been paid for and who received the funds, again without relying on any merchant signatures. In particular, funds and receipt are exchanged in a single atomic action. The asymmetric nature of the customer-merchant relation is crucial. The protocol is specifically designed with bitcoin in mind as the underlying payment system. Thereby, it has the useful benefit that all transactions are public. However, the only essential requirement on the payment system is that "accounts" are arbitrary user-created keypairs of a cryptosystem whose keypairs enjoy a homomorphic property. All ElGamal-type cryptosystems have this feature. For use with bitcoin we propose the design of a deterministic bitcoin wallet whose addresses can be indexed by clear text strings.
Differential effects of lecithin and cholesterol on the immunoreactivity and conformation of apolipoprotein A-I in high density lipoproteins (1991)

Recently identified epitopes in apoA-I define a distinct N-terminal region with a complex tertiary structure, characterized by multiple discontinuous epitopes. Other epitopes are constituted of short domains centered either on beta-turns or random coils or on the 22-mer amphipathic alpha-helices (Marcel, Y. L., Provost, P. R., Koa, H., Raffaï, E., Vu Dac, N., Fruchart, J.-C., and Rassart, E. (1991) J. Biol. Chem. 266, 3644-3653). The compared immunoreactivity of seven epitopes studies here in response first to delipidation of high density lipoprotein (HDL) apoA-I by detergents, and second to modifications of HDL lipid composition by phospholipase A2 or by enrichment in surface lipids demonstrates that apoA-I has a flexible conformation which is readily responsive to the nature and concentration of bound lipids and that the structure of lipid-free apoA-I is significantly different from that of HDL-bound apoA-I, possibly representing a condensed molecule with several masked domains. In HDL apoA-I, these epitopes define five distinct domains which are characterized by particular responses to lipid modifications. However, two domains, each starting at the N-terminal beta-turn of an amphipathic alpha-helical repeat (residues 99-121 and 186-209, respectively) have almost identical immunoreactivity whether after detergent treatment or after changes in cholesterol and phospholipid levels, a property which probably reflects the known periodicity of apoA-I structural 22-mers. The immunoreactivity of a discontinuous epitope, representative of the N-terminal domain, is inversely related to the concentration of phospholipids, a unique characteristic among the epitopes tested here which indicates that the complex N-terminal region interacts with phospholipids, either directly or indirectly. These studies demonstrate that the conformation of multiple domains of HDL apoA-I is dependent on lipid phase composition and differentially affected by cholesterol and phospholipids.
What the pulmonary specialist should know about the new inhalation therapies (2011)

A collaboration of multidisciplinary experts on the delivery of pharmaceutical aerosols was facilitated by the European Respiratory Society (ERS) and the International Society for Aerosols in Medicine (ISAM), in order to draw up a consensus statement with clear, up-to-date recommendations that enable the pulmonary physician to choose the type of aerosol delivery device that is most suitable for their patient. The focus of the consensus statement is the patient-use aspect of the aerosol delivery devices that are currently available. The subject was divided into different topics, which were in turn assigned to at least two experts. The authors searched the literature according to their own strategies, with no central literature review being performed. To achieve consensus, draft reports and recommendations were reviewed and voted on by the entire panel. Specific recommendations for use of the devices can be found throughout the statement. Healthcare providers should ensure that their patients can and will use these devices correctly. This requires that the clinician: is aware of the devices that are currently available to deliver the prescribed drugs; knows the various techniques that are appropriate for each device; is able to evaluate the patient's inhalation technique to be sure they are using the devices properly; and ensures that the inhalation method is appropriate for each patient.
Fractographic Analysis of CVD (Chemically Vapor Deposited) ZnS (Zinc Sulfide) (1988)

Chemically vapor deposited (CVD) zinc sulfide is used as an infrared transmitting window on heat-seeking missiles and laser systems. In many of these in-service environments, mechanical and thermal stresses can lead to crack growth and fracture. Thus, a knowledge of the mechanical and thermal properties of these materials is necessary. Although many investigations and research papers have concentrated on the processing and properties of ZnS material, very little has been written on the characterization of the fracture surface of ZnS. This report is written to demonstrate the techniques of determining the fracture origin and the surrounding topography. The fracture toughness, or resistance to crack propagation, is determined from fracture surface features. Their values compare well with reported values. More importantly, observation of the fracture surface provides a tool by which we can determine the state of stress, identify the fracture origin, and analyze the fracture process.
gamma-radiation-induced gammaH2AX formation occurs preferentially in actively transcribing euchromatic loci. (2010)

The central dogma in radiation biology is that nuclear DNA is the critical target with respect to radiosensitivity. In accordance with the theoretical expectations, and in the absence of a conclusive model, the general consensus in the field has been to view chromatin as a homogeneous template for DNA damage and repair. This paradigm has been called into question by recent findings indicating a disparity in gamma-irradiation-induced gammaH2AX foci formation in euchromatin and heterochromatin. Here, we have extended those studies and provide evidence that gammaH2AX foci form preferentially in actively transcribing euchromatin following gamma-irradiation.
Freestanding monolithic silicon aerogels (2012)

The electrical, optical, and (bio)chemical properties of porous Si have attracted considerable interest for battery, solar cell, display, sensor, biomedical, and other applications. Free-standing monolithic Si aerogels have been generated for the first time via low-temperature magnesiothermic reduction of SiO2 aerogels. Under appropriate conditions, the reaction of Mg gas with SiO2 produced a co-continuous mixture of predominantly MgO and Si. Selective MgO dissolution then yielded nanocrystalline, porous, photoluminescent Si aerogels with a high degree of porosity (97.3 vol%) and a high specific surface area (615 m2 g−1).
Chemical Synthesis of Oligonucleotides Using Acetone as a Washing Solvent (2009)

Acetone is being proposed as the main washing solvent during automated synthesis of oligonucleotides to reduce acetonitrile usage in the assembly process and endure the impact of global acetonitrile shortage.
The Effect of (Ag, Ni, Zn)-Addition on the Thermoelectric Properties of Copper Aluminate (2010)

Polycrystalline bulk copper aluminate Cu1-x-yAgxByAlO2 with B = Ni or Zn were prepared by spark plasma sintering and subsequent thermal treatment. The influence of partial substitution of Ag, Ni and Zn for Cu-sites in CuAlO2 on the high temperature thermoelectric properties has been studied. The addition of Ag and Zn was found to enhance the formation of CuAlO2 phase and to increase the electrical conductivity. The addition of Ag or Ag and Ni on the other hand decreases the electrical conductivity. The highest power factor of 1.26 × 10-4 W/mK2 was obtained for the addition of Ag and Zn at 1,060 K, indicating a significant improvement compared with the non-doped CuAlO2 sample.
On aperture averaging of speckle patterns (2003)

Statistical parameters of the power of a nonuniform (speckled) light field measured by a photodetector with a finite receiving aperture were investigated. Such a field was created by passing coherent laser radiation through a multimode optical fiber and then scanned across the aperture. It was demonstrated that the mean square deviation of the received power is defined by a parameter equal to the ratio of the aperture diameter to the characteristic dimension of the spatial variations of the light field. If this ratio is more than 2, the above deviation does not exceed values permissible for devices using spatially coherent light (e.g., for free-space optical communication systems).
Thin-film-based optical fiber Fabry–Perot interferometer used for humidity sensing (2018)

A thin-film-based optical fiber Fabry-Perot interferometer that consists of ZrO<sub>2</sub> and SiO<sub>2</sub> porous thin films is designed and fabricated by electron beam physical vapor deposition. Since the SiO<sub>2</sub> porous thin film has the capability of water adsorption, the proposed Fabry-Perot interferometer is appropriate to detect humidity. Experimental results show that the prepared sensor has a humidity detection range from 0.06% RH to 70% RH. A cycling test shows that the humidity sensor has a responding or recover time of 4 s and good repeatability among different humidity environments. Especially, the proposed humidity sensor is insensitive to temperature variation and suitable for the detection of low relative humidity.
The contribution of wavelets to the analysis of economic and financial data (1999)

After summarizing the properties of wavelets that are most likely to be useful in economic and financial analysis, the literature on the application of wavelet techniques in these fields is reviewed. Special attention is given to the potential for insights into the development of economic theory or the enhancement of our understanding of economic phenomena. The paper is concluded with a section containing speculations about the relevance of wavelet analysis to economic and financial time–series given the experience to date. This discussion includes some suggestions about improving our understanding and evaluation of forecasts using a wavelet approach.
Promoting Public-Private Cooperation in Disaster Management - Focused on the Victim's Satisfaction with Public and Private Relief Services - (2019)

현재 우리나라 재난대응 체계는 공공과 민간의 협력이 원활히 이루어지고 있지 못한 상황이다. 따라서 본 연구는 재난에 있어 민관협력 활성화를 위하여 재난피해자를 대상으로 공공지원 및 민간지원에 대한 만족도를 로지스틱 회귀분석을 활용하여 측정하였다. 연구결과 재난 피해자의 인구사회학적 특성에서는 연령대가 높거나 기혼인 사람들이 공공지원에 만족할 가능성이 낮게 나타났다. 피해자가 경험한 재난 유형에서는 화재 피해자가 태풍 피해자보다 공공지원에 만족할 가능성이 높은 것으로 나타났다. 거주지역과 관련해서는 충청지역의 피해자가 수도권 지역의 피해자보다 공공지원에 만족할 가능성이 높았다. 재난 피해자의 사회적 특성에서는 사회적 지지가 높을수록, 사회 참여도가 높을수록, 사회적 불만이 높을수록 공공지원에 만족할 가능성에 높게 나타났으며, 재난 피해자 개인의 심리적 특성에 따라서는 체감 피해 규모가 클수록 공공지원에 만족할 가능성이 높은 것으로 나타났다. 이러한 연구결과를 바탕으로 정책적·실천적 방안을 제시하였다.The degree of public-private cooperation in disaster relief services is still insufficient and improper in South Korea. This study measured the satisfaction level of disaster victims with public and private support using a logistic regression model. The results showed that older or married victims were relatively less likely to be satisfied with public support. As for the types of disaster they experienced, fire victims were more likely to be satisfied with public support than typhoon victims. Victims living in Chungcheong region were more likely to be satisfied with public support than those in Seoul metropolitan area. The higher the social support, participation and discontent, the more likely they were to be satisfied with public support. Regarding psychological characteristics of a disaster victim, the larger the damage they felt, the more likely they could be satisfied with public support. Based on these findings, practical policy measures were recommended to improve disaster response capabilities.
Platelet adhesion to polyurethane blended with polytetramethylene oxide (1996)

The surface and blood compatibility characteristics of Pellethane polyurethane blended with 1% or 5% (w/w) polytetramethylene oxide (PTMO) were evaluated. Analysis by X-ray photoelectron spectroscopy indicated that blending of PTMO caused an increased amount of amide wax, a processing agent present in Pellethane, to be expressed on the surface of the blended films in vacuo. Dynamic contact angle measurements in water, however, showed that PTMO was preferentially expressed on the blend film surfaces in water. The two lower molecular weight species, PTMO and amide wax, were thus capable of reorienting, depending on the environmental conditions. An in vitro assay of platelet adherence and thrombosis showed that polyurethane blended with 5% PTMO had about two-thirds fewer adherent platelets compared to unblended polyurethane and that a blend containing 1% PTMO was intermediate in platelet adherence. Measurements of albumin adsorption from binary solution with fibrinogen indicated that PTMO blends did not preferentially adsorb albumin compared to unblended polyurethane. (c) 1996 John Wiley & Sons, Inc.
Fungal food spoilage of supermarkets' displayed fruits (2019)

The study is among the first reports about fungal types involved in fruits and vegetables rotting in Qatar and it highlights the strong link between spoiling fungi and their country of origin.
The Amino Acid Sequence of a Human Immunoglobulin G3m(g) pFc′ Fragment (1977)

Amino acid sequence analysis of the pFc' fragment obtained by pepsin digestion of an IgG3; G3m(g) human myeloma protein HER shows it to consist of 112 residues. It starts at position 334 (gamma1 numbering), contains eight residues of the Cgamma2 region, and the whole Cgamma3 domain. Comparison with the sequence of gamma1 shows five differences including an extra Met at 397. Each is accountable by a single base substitution. The sequence is identical to that of a G3m(b0) molecule except for the previously noted allotype related Tyr/Phe exchange at position 436. The high degree of homology (95%) among gamma-chain subclasses suggests a recent diversification.