gebhart/patrepeval huggingface dataset:
Activation of γδ T Cells in Malaria: Interaction of Cytokines and a Schizont‐Associated<i>Plasmodium falciparum</i>Antigen (1997)

A soluble Plasmodium falciparum antigen that specifically stimulates gammadelta T cells has been found associated predominantly with schizonts rather than ring forms, trophozoites, or gametocytes. This schizont-associated antigen (SAA) is resistant to protease digestion, is anionic at pH 8.5, is heat- and pH-resistant, and contains a phosphate group(s) that is crucial for biologic activity. Partially purified SAA induced proliferative responses and interferon-gamma production by gammadelta T cells. These stimulatory effects were greatly enhanced by monocyte-derived cytokines, interleukin (IL)-10, IL-12, and IL-1beta, but not by tumor necrosis factor-alpha. Taken together, these results suggest that concurrent stimulation of gammadelta T cells by SAA and by cytokines released from activated monocytes (IL-10, IL-12, IL-1beta) may represent the major mechanism underlying the selective activation of gammadelta T cells that is consistently observed in clinical cases of P. falciparum infection.
High performance capacitor dielectrics from chemically prepared powders (2002)

Dielectric and metal powders have been developed using chemical precipitation and coating technology to produce materials suitable for next generation multilayer ceramic capacitor technology. These materials address the issues of electrode delamination in parts with many thin dielectric layers, as well as the problem of increasing dissipation factor with decreasing layer thickness.
Recognizing imprecisely localized, partially occluded, and expression variant faces from a single sample per class (2002)

The classical way of attempting to solve the face (or object) recognition problem is by using large and representative data sets. In many applications, though, only one sample per class is available to the system. In this contribution, we describe a probabilistic approach that is able to compensate for imprecisely localized, partially occluded, and expression-variant faces even when only one single training sample per class is available to the system. To solve the localization problem, we find the subspace (within the feature space, e.g., eigenspace) that represents this error for each of the training images. To resolve the occlusion problem, each face is divided into k local regions which are analyzed in isolation. In contrast with other approaches where a simple voting space is used, we present a probabilistic method that analyzes how "good" a local match is. To make the recognition system less sensitive to the differences between the facial expression displayed on the training and the testing images, we weight the results obtained on each local area on the basis of how much of this local area is affected by the expression displayed on the current test image.
Un "periodismo de altura" par la época de la "posverdad" (2017)

La entrega de los Premios Cambio16 2017 reunio a las principales personalidades politicas, economicas, sociales y culturales, galardonadas por su apuesta por la excelencia y el compromiso social, asi como por el esfuerzo y la capacidad de superacion.
A 10.7MHz self–calibrated SC multibit 2nd–order bandpass Σ–Δ modulator (2002)

A 2nd-order multibit BandPass ΣΔ Modulator (BPΣΔM) to be used for 10.7MHz IF sampling of the AM/FM broadcasting radio signal is presented. The modulator is realized with SC technique and it is sampled at 37.05MHz. The accuracy of the in-band noise shaping is ensured with two self-calibrating control systems. In a 0.18µm CMOS technology the device die size is 1mm2and the power consumption is 75mW. The modulator features 76dB dynamic range and 67dB peak-SNR within a 200kHz bandwidth (FM bandwidth).
Effects of Fuel Factors on Emissions (1971)

<div class="htmlview paragraph">Possibilities for the reduction of automobile emissions by changes in gasoline composition have been reviewed. Small benefits are achievable by limiting front end volatility and light olefin content. California has already passed legislation which places limits on these fuel properties.</div> <div class="htmlview paragraph">Fuel hydrocarbon type, octane number, and lead antiknock content are interrelated. Maintenance of octane number while removing lead can be achieved by increasing the fuels aromatic content with a resulting increase in some aspects of the exhaust's reactivity. Alternatively, lead may be removed without changing hydrocarbon composition if the engines octane number requirement is reduced. These changes may result in lower exhaust hydrocarbon content. They will result in lower engine efficiency and hence higher exhaust flow rates. The net effect on pollutant emissions is in doubt.</div> <div class="htmlview paragraph">Gasoline additives, other than lead, make little direct contribution to the pollutant content of exhaust. They do perform functions which minimize the deterioration of an engine's emission characteristics.</div>
Rome and Rhodes in the Second Century B.C.: A Historiographical Inquiry (1975)

Ancient Rhodes reached a pinnacle of power in the early second century B.C. For twenty years—from Apamea to Pydna—her fleet was unrivalled in the Aegean and her mainland possessions encompassed most of Lycia and Caria. Ally and helpmate of Rome in the war on Antiochus III, Rhodes gained much profit from the association, in prestige and territorial acquisitions. But her heyday was brief, her fall swift and calamitous. After Pydna, Rhodes felt the heavy hand of Rome: she forfeited most of her mainland holdings; her economy suffered ruinous setback; the island republic was humbled and humiliated. So dramatic a reversal of fortune demands explanation.
Managing a Multireservoir Field Using Single Cell Modeling - Dacion (2002)

Abstract Managing a field in a fluvial or delta environment is complicated due to the number of reservoir units. Many of these reservoir units are small and cannot justify significant studies. Because the data acquisition is limited at the reservoir level, the focus is on understanding uncertainties through a flexible approach allowing sensitivity studies. The Dacion field in the eastern part of Venezuela is one of such fields. This block contains more than 500 reservoir units with sizes from 200 Mstb and up. The Dacion field came on production about 50 years ago. In the early years of development more than 300 wells were drilled and production reached a peak of 45000 bbl/D of oil in about 1958. After that the drilling slowed down and the field was operated on a rate maintenance basis. By 1997 the rate had fallen to approximately 11500 bbl/D. In 1998 the reactivation project was commenced by Lasmo Venezuela (ENI) and managed by PDVSA as part of the third Venezuelan licensing round. The project has so far more than tripled the production at takeover. The planning approach was based on work done by Lasmo (ENI) in gas fields in Indonesia and modified to an oilfield. The basis of the approach is single cell simulation models for each of the individual units linked to a geological model for the definition of wellbore planning and estimation of productivity. This paper presents how this approach was applied in the Dacion block and how this links to reservoir simulation studies and facilities optimisation. Examples of individual reservoir models will be illustrated. The key in applying the simplified approach has been in understanding the fractional flow properties and being able to express these as type functions. The outcome is an approximate and flexible method to support management of fields with numerous small reservoirs.
Asymptomatic Colonization by <i>Clostridium difficile</i> in Infants: Implications for Disease in Later Life (2010)

Approximately 60% to 70% of healthy newborns and infants are colonized by the enteric pathogen Clostridium difficile. For reasons that remain obscure, these colonized infants show no ill effects from the potent exotoxins released by this anaerobe, in contrast to older children and adults who are susceptible to severe diarrhea and colitis. The organism is acquired in infancy, as in adults, from environmental contamination in the nursery or home environment. Between 12 and 24 months C difficile is evicted as a commensal, presumably by the gradual development of the adult colonic microflora. The carrier state is well tolerated by infants, and the immunoglobulin G antitoxin response that develops during the carrier state appears to provide durable protection against subsequent C difficile disease.
정부정보자원관리 전문인력 양성 및 자격제도 설치운영 방안 연구 (2006)

최근 정보기술아키텍처(ITA/EA)와 정보자원관리(IRM)에 대한 관심이 높아지고 있다.ITA/ EA는 국내에서 법이 시행되면 각 공공기관이 도입하고 있고. IRM은 행자부가 전자정부법에 따라 시행하는 또 다른 IT관리체계이다. 두 가지 서로 다른 관리체계의 도입으로 실무현장에서 많은 혼란을 겪고 있다. 본 연구는 이 두 가지 프레임워크가 어떻게 서로 연계될 수 있는지 보여 준다. ITA/EA는 정적인 청사진으로 IRM은 동적인 활용 프로세스로 정의하면서 각각의 영역별로 필요한 기반지식에 대한 도출을 시도하였다. 이러한 정의된 기반지식을 기초로 전문인력 양성방안과 자격제도에 대한 검토를 하였다. IRM의 경우 민간자격제도가 이미 널리 만들어져 있으므로 이러한 민간자격 제도를 활용하는 것이 바람직하다. 반면에 ITA/EA 분야는 국내의 자체적인 자격제도 도입이 필요한 것으로 제안한다. 또한 이러한 전문인력 양성과 자격제도를 추진하는 체계를 범정부 IT거버넌스 측면에서 검토하고 방안을 제시한다.
Kinetics of the condensation of N-methyl-4-picolinium iodide with p-dimethylaminobenzaldehyde in aqueous ethanol (1974)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics of the condensation of N-methyl-4-picolinium iodide with p-dimethylaminobenzaldehyde in aqueous ethanolDavid N. Kramer, Lawrence P. Bisauta, and Robert BatoCite this: J. Org. Chem. 1974, 39, 21, 3132–3136Publication Date (Print):October 1, 1974Publication History Published online1 May 2002Published inissue 1 October 1974https://pubs.acs.org/doi/10.1021/jo00935a016https://doi.org/10.1021/jo00935a016research-articleACS PublicationsRequest reuse permissionsArticle Views186Altmetric-Citations16LEARN 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
Telepathology: a tool to aid in diagnosis and quality assurance in cervicovaginal cytology (1995)

The purpose of this study is to evaluate the use of a Teletransmission System with regard to quality of diagnosis and screening so as to establish its potential role in gynaecological cytology. Three aspects of its use in cytopathology have been considered: diagnosis, training, and quality control. The circumstances in which the system may be used for diagnosis, together with its advantages and disadvantages, are examined and discussed. In general, the cost/benefit in diagnostic use related to the experience of both the expert and the peripheral pathologist. The system may also contribute to training and quality assessment, particularly if combined with other automated services, such as image data bank.
Leaf wax of<i>Portulaca oleracea</i> (1974)

Abstract Wax coating the leaves and stems of Portulaca oleracea consists of hydrocarbons (21%), esters (53%), acids (2%), alcohols (4%), diol monoesters (2%), and unidentified material (15%). Lesser amounts of esterified and free β‐amyrin and lupeol, stigmast‐4‐en‐3‐one and free diols also are present. The principal component of the hydrocarbons is C 33 . The C 40 ‐C 56 esters are C 22 ‐C 28 alcohol esters of C 20 ‐C 26 acids; free alcohols are C 22 ‐C 30 ; free acids are C 16 ‐C 36 ; diols of diol monoesters and free diols are C 20 ‐C 26 .
Micropropagation of Certain Underutilized Fruit Crops: A Review (2005)

Micropropagation is a proven means of producing millions of identical plants under a controlled and aseptic condition, independent of seasonal constraints. It not only provides economy of time and space but also gives greater output and allows further augmentation of elite disease free propagules. India is homeland of many important yet underutilized fruit crops such as Indian gooseberry (Emblica officinalis Gaertn), bael (Aegle marmelos Corr.), jackfruit (Artocarpus hetrophyllus L.), tamarind (Tamarindus indica L.) and jamun or black plum (Syzygium cuminii L. Skeels.). Most of these crops have medicinal value and are suitable for growing under marginal situations. The commercial production of these crops is restricted due to the shortage of desirable planting material. Micropropagation can play an important role in rapidly increasing new cultivars of these fruit crops. This review paper outlines the work done on micropropagation of these fruit crops.
The Use of a Resorbable Membrane in Mucogingival Surgery. Case Series (1996)

A surgical technique involving a resorbable membrane was used to treat 3 to 7 mm localized human buccal recessions on 10 consecutive patients. The exposed root surface was scaled and a trapezoidal mucoperiosteal flap was elevated after de-epithelization of the papillae. The space between the root and the membrane was created using a bur to form a concavity on the root and by bending the membrane with a suture. The flap was positioned as coronally as possible covering the membrane. The sutures were removed 15 days postsurgery and tetracycline therapy prescribed for 10 days. The results were evaluated at 12 months. The surgical procedure resulted in a significant reduction in recession (2.9 mm +/- 1.3) as well as a gain in attachment (3.4 mm +/- 2.1). Calculation of mean root coverage was 59.6%. There was no significant change of the keratinized tissue width. For therapeutic reasons, re-entry was performed in 2 cases: newly formed tissue was observed on the previously exposed roots. Guided tissue regeneration using a resorbable membrane appears to provide good results in cases of localized buccal recession.
Myoblast transplantation on the beating heart. (2006)

Cellular cardiomyoplasty using various types of donor cells is now validated by a large number of experimental studies. We report a case of cellular cardiomyoplasty performed on a beating heart using autologous skeletal myoblasts, thus combining the efficacy of both procedures. Approximately 2.5 g of rectus femoris muscle tissue biopsy was taken from the patient and cultured using a patented procedure to generate human myoblasts. The cell type and the purity of the cell culture were ascertained by immunostaining for human desmin expression. Under direct vision and stabilization with the Octopus III tissue stabilizer, 3.70 x 10(8) myoblasts in 3 ml of the patient's own serum were injected into the myocardium in 20 sites on the anterior wall and near the apex on the posterior wall, in and around the infarcted areas. In this case report, this procedure was found to be a safe and viable option, with improvement in cardiac function.
Design of control logic and compensation strategy for electric power steering systems (2008)

The purpose of this research is to develop an electric power steering (EPS) control logic which integrates base-assist, damping, return, and inertia control logic. This research also introduces a special method which employs the steering angle signal and the vehicle speed signal into the control logic to tune the compensation gain immediately. It can optimize the steering response and improve the steering feel. In addition, a new control logic, impact compensation, has been proposed. It reduces the oscillatory effect of the steering system when the vehicle passes through an uneven road. For verifying the ideas mentioned above, this research integrates Matlab/Simulink with CarSim. Co-simulation technique is used to validate the proposed ideas for the high accurate description of vehicle dynamics and model of the steering behavior. The results show that the designed control logic and compensation strategy can satisfy various driving conditions. The impact control logic can alleviate the unwanted vibration of the steering wheel effectively.
SIRA: TREC Session Track 2014 (2014)

1. Abstract This paper discusses Siena’s Interactive Research Assistant’s (SIRA) participation in the Text Retrieval Conference (TREC) Session Track of 2014. The overall goal of this track is to improve search results during query sessions based on a user’s behavior. Query sessions include many aspects of a search, including query topics, initial retrieved webpages, clicked on links, visit times, etc. SIRA has used several methods to improve search results that will be discussed in this paper. Each method of query expansion utilized clicked-on and non-clicked-on links, pages with the longest visited time, and N-Percent (N%) of each page. Two of our three submissions improved over our baseline results and both of these were equal to the median submission for all participants in the track.
Genetic heterogeneity in ataxia-telangiectasia studied by cell fusion. (1982)

The effect of x-rays on the rate of semiconservative DNA replication was investigated by autoradiography in single cells obtained from normal individuals and from patients having ataxia-telangiectasia (AT). In the five AT cell strains studied, the rate of DNA synthesis was inhibited to a lesser extent that in two normal cell strains. By using this abnormal regulation of DNA replication in AT cells as a marker, an experimental procedure was developed that allowed genetic complementation analysis of AT. After Sendai virus-induced fusion of AT cells, the grains were counted over binucleate cells with both nuclei in S phase. In some cases, the inhibition of DNA synthesis caused by x-rays in the heterodikaryons was more pronounced than that in the parental homodikaryons and was comparable to that in normal binucleate cells, indicating complementation. By using this approach, the five AT cell strains that were investigated could be assigned to three complementation groups. The data suggest that extensive genetic heterogeneity exists in AT.
A Group Key Distribution Scheme for Wireless Sensor Networks in the Internet of Things Scenario (2012)

As an indispensable part of the Internet of Things (IoT), wireless sensor networks (WSNs) need to be completely integrated into the Internet. When an Internet user communicates with multiple sensor nodes in WSNs, secure group key management becomes necessary. However, most current group key management schemes developed for WSNs do not consider the Internet scenario while traditional group key management in the Internet is deemed to be not suitable for WSNs due to the resource constraint characteristics of WSNs. In this paper, we propose a group key distribution scheme for WSNs in the IoT scenario in which we organize sensor nodes into groups in a hierarchical structure. In the upper wired layer, an end-to-end secure communication protocol is used to distribute group keys for subgroups to the trusted head nodes and the head nodes then distribute the group keys through underlying tree-based topology and wireless multicast to minimize energy consumption. We also perform some quantitative analyses as well as experiments to show that our proposed scheme is secure and has t -revocation capability. The total cost of distributing and rekeying the group keys is also analyzed and compared to that in some other comparable schemes.
Partial Chemical Characterization of a Natriuretic Substance in Rat Atrial Heart Tissue (1982)

Extracts of atrial and ventricular rat heart tissue were prepared in phosphatebuffered saline and boiled (PBS-boiled) or in acetic acid and fractionated using Sephadex G-75. The extracts were injected intravenously into anesthetized nondiuretic (i.e., not hydrated) rats to assay for natriuretic activity. PBS-boiled atrial extract caused urinary sodium excretion (UNaV) to increase significantly (P < 0.05) by 672 ± 307% (±SE) during the 10 min after injection; whereas no significant change in UNaV occurred after injection of PBS alone or ventricular extract. UKV and urine volume increased significantly by 400 ± 236% and 499 ± 105%, respectively, after injection of PBS-boiled atrial extract. Pooled active fractions from Sephadex G-75 of acid atrial extract (lyophilized and reconstituted in PBS) caused UNaV and urine volume to increase significantly by 1015 ± 401% and 807 ± 291%, respectively, and a smaller but significant increase in UKV of 158 ± 23%. The natriuretic activity of acid atrial extract eluted in the molecular weight range of 3600 to 44,000 daltons, was unaffected by heating in a boiling water bath, treatment with concanavalin A, incubation with plasma, or removing the head of the assay rat, but was abolished by treatment with trypsin. These properties do not generally resemble those of the natriuretic factors in blood and urine previously reported by others.
Effective sourcing strategies for perishable product supply chains (2014)

Purpose – The purpose of this paper is to assess whether an existing sourcing strategy can effectively supply products of appropriate quality with acceptable levels of product waste if applied to an international perishable product supply chain. The authors also analyse whether the effectiveness of this sourcing strategy can be improved by including costs for expected shelf life losses while generating order policies. Design/methodology/approach – The performance of sourcing strategies is examined in a prototype international strawberry supply chain. Appropriate order policies were determined using parameters both with and without costs for expected shelf life losses. Shelf life losses during transport and storage were predicted using microbiological growth models. The performance of the resulting policies was assessed using a hybrid discrete event chain simulation model that includes continuous quality decay. Findings – The study's findings reveal that the order policies obtained with standard cost parameters result in poor product quality and large amounts of product waste. Also, including costs for expected shelf life losses in sourcing strategies significantly reduces product waste and improves product quality, although transportation costs rise. Practical implications – The study shows that in perishable product supply chain design a trade-off should be made between transportation costs, shortage costs, inventory costs, product waste, and expected shelf life losses. Originality/value – By presenting a generically applicable methodology for perishable product supply chain design, the authors contribute to research and practice efforts to reduce food waste. Furthermore, product quality information is included in supply chain network design, a research area that is still in its infancy.
Skip list data structures for multidimensional data (1994)

This report presents four new data structures for multidimensional data. All of these data structures are based on the deterministic skip list. Explanations are provided for the 2-d search skip list and three different versions of the k-d skip list. These structures support fast insertion and deletion. The third version of the k-d skip list and the 2-d search skip list require only O(n) space. The 2-d search skip list allows semi-infinite range searches of type ([L1:H1],[L2:infinity]), or of type ([L1:H1],[-infinity:H2]) in time O(t + log n). The third version of the k-d skip list seems well-suited for range search using parallel processing. Algorithms for building, insertion, deletion and range search for all four data structures are given, along with proofs of worst case complexity for these operations. Complete C code for range search, insertion and deletion in the 2-d search skip list is also presented. (Also cross-referenced as UMIACS-TR-94-52)