gebhart/patrepeval huggingface dataset:
Facebook as a social search engine and the implications for libraries in the twenty‐first century (2008)

Purpose The primary objectives of this research paper are to explore the concept of social search, evaluate the performance of Facebook as a social search engine, and to understand the relationship between social networking sites (SNS) and social search. The author's intention is to examine the possibility that Facebook presents as the future of on‐line search and the implications for libraries. Design/methodology/approach This study reviews the literature on SNSs, Facebook studies, and the concept of social search. It then explores Facebook as a social search engine through participant observation, personal experience and experiment. The experiment is based on two identified search queries. Both queries are performed, wherein the results retrieved are displayed using tables and evaluated. Findings Facebook as a people search engine, yields irrelevant results in response to search queries for unknown persons or groups. Facebook may also fail to provide timely and relevant results when attempting to get information from persons with whom the user has a weak relationship. Findings also indicate the limitations of users functioning as quasi‐librarians as it relates to the quality of information retrieval. Practical implications The findings are relevant for library and information science academics and professional practitioners. Originality/value The author provides an approach for evaluating the quality of information retrieval in social search using the traditional information retrieval evaluation methods of library and information scientists. He also revisits old arguments on the importance of the profession to web information in light of new trends and data.
Endosseous implant failure influenced by crown cementation: a clinical case report. (2008)

Implant dentistry has developed predictable treatment outcomes. Nevertheless, there are multiple reasons for implant failure. This case report documents a previously unreported type of implant failure that occurred 1 month after crown cementation. The implant failure is believed to be associated with retained excess subgingival cement.
Design and Analysis of Wireless Power Transfer for Non-Metallic USB Connector (2020)

The Non-Metallic Connector (NMC) was introduced several years ago. In this new iteration, the NMC has been redesigned to accomplish data transfer with an optical interface and wireless power transfer with the use of micro-inductors. To demonstrate the wireless power transfer (WPT), an NMC for a USB flash drive is proposed. The challenge for the WPT design is to understand the geometric and physical constraints inside the connector housings (form factor). Equations for optimal power transfer performance in this miniature environment are presented followed by simulations that verify the efficient WPT. Initial measurements on the proposed WPT system also validate the concept.
Expression of gamma-glutamyl transpeptidase activity in the developing mouse tooth, intervertebral disc, and hair follicle. (1982)

Expression of gamma-glutamyl transpeptidase (GGT) in the developing mouse tooth, intervertebral disc, and hair follicle was investigated in terms of its localization during ontogenic stages and its association or lack of association with cell proliferation (labeled nuclei after [3H]thymidine injection or metaphase-arrested cells after colchicine injection). The data demonstrate that (a) GGT expression followed a program of activity and localization changes that correlated with the progressive emergence of developmental stages and (b) GGT activity in developing tissues derived either from epithelium (enamel-producing cells and hair follicle cells) or from mesenchyme (intervertebral disc cells) was localized only in mitotically quiescent cellular layers or regions associated with the production of specialized tissue products; however, not all postmitotic regions expressed GGT activity. Although further research is needed to clarify the role of GGT in normal and neoplastic tissues, we conclude that increasing evidence from this and other laboratories implicates GGT as a marker of cell differentiation, cell aging, and/or reduced cell proliferation.
Data structures for picture processing (1978)

A variety of algorithms have been invented for use in picture processing. An important aspect of the algorithms are the data structures employed. A data structure may be chosen to represent a particular structural relationship, to save space, or to allow for fast access to data. This paper surveys four major classes of data structures used in current picture processing research and gives several examples of the use of each type of structure in particular algorithms or systems. The structures surveyed are linear lists, hierarchic structures, graph structures, and recursive structures.
A Convenient Synthesis of L-allo-Threonine (1996)

A short and advantageous procedure is described for the preparation of multigram quantities of L-a//o-threonine from L-Boc-threonine.
Digital library resources as a basis for collaborative work (2000)

The creation of large, networked, digital document resources has greatly facilitated information access and dissemination. We suggest that such resources can further enhance how we work with information, namely, that they can provide a substrate that supports collaborative work. We focus on one form of collaboration, annotation, by which we mean any of an open-ended number of creative document manipulations that are useful to record and to share with others. Widespread digital document dissemination required technological enablers, such as web clients and servers. The resulting infrastructure is one in which information may be widely shared by individuals across administrative boundaries. To achieve the same ubiquitous availability for annotation requires providing support for spontaneous collaboration, that is, for collaboration across administrative boundaries without significant prior agreements. Annotation is not more commonplace, we suggest, because the technological needs of spontaneous collaboration are challenging. We have developed a document model, called multivalent documents, which provides a means to address these challenges. In the multivalent document model, a document comprises distributed data and program resources, called layers and behaviors, respectively. Because most document functionality is implemented by behaviors, the model is highly extensible, and can accommodate both new document formats and novel forms of functionality. Among other applications, it is possible to use the model to effect a wide class of annotation types, across different document formats, without any administrative provisions. An implementation of the model has allowed us to develop behaviors that currently support some quite different but common digital document types, and a number of quite different annotation capabilities—some familiar, and some novel. A related implementation provides some analogous capabilities for geographic data. Such capabilities could have a beneficial impact on the “scholarly information life cycle,” i.e., the process by which researchers and scholars create, disseminate, and use knowledge.
Value of a contrast agent in equivocal carotid ultrasound studies: Pictorial essay (2000)

The aim of the present study was to assess the use of an echo-enhancing agent (Levovist; Schering AG) in equivocal carotid bifurcation ultrasound studies and compare the information obtained with digital subtraction angiography (DSA). Contrast-enhanced carotid ultrasound studies were performed on 30 carotid bifurcations in 28 patients. The standard carotid ultrasound examinations were considered equivocal for two reasons: apparent acute internal carotid artery occlusions (n = 10), and possibly patent but critically stenosed internal carotid arteries with the residual flow lumen being incompletely visualized (n = 20). All patients underwent subsequent carotid digital subtraction angiography. All patients with apparent acute carotid occlusions (n = 10) were correctly characterized on contrast-enhanced ultrasound when compared with DSA. The majority were complete occlusions (n = 8) although in two cases there were critical carotid stenoses requiring surgical endarterectomy. In the 'incompletely visualized lumen' group (n = 20), the majority (n = 16) were correctly characterized on contrast enhanced ultrasound: 13 cases of critically stenotic but patent internal carotid arteries, two cases without a haemodynamically significant stenosis and one case of a carotid occlusion with patent vasa vasorum. One of the critical carotid stenoses was prospectively reported as occluded on the 'gold standard' angiography. In three cases the flow lumen was still incompletely visualized due to calcified plaque despite an echo-enhancing agent; angiography revealed no significant stenosis in all cases. There was one false negative for internal carotid occlusion. This occurred early in the series and could be considered to be a technical error. Importantly, there were no false positives for carotid occlusion. Contrast-enhanced carotid ultrasound significantly improves diagnostic confidence in equivocal carotid ultrasound studies. In appropriate clinical settings this may reduce the need for subsequent carotid angiography.
Hypertriglyceridaemia in Alström's syndrome: causes and associations in 37 cases (2004)

The first overview of serum triglyceride levels in a significant number of reported cases of Alström Syndrome shows an overlap between severe hypertriglyceridaemia and severe hyperinsulinism, but not a direct correlation between the two nor with insulin resistance measured by HOMA. Triglyceride levels were not related to glycaemia, hepatic or renal dysfunction.
NIMH serves as source for psychiatric research, grants (1999)

Agency ABCs is a recurring column on government agencies and the resources they offer pediatricians and their patients. Of the 19 million Americans suffering some form of mental illness, 7.5 million are children, making the mission of the National Institute of Mental Health (NIMH) even more urgent and relevant for pediatricians and their patients. Since 1949, the NIMH has been the main biomedical and behavioral research agency of the U.S. Department of Health and Human Services and the largest federal source of psychiatric research and grants.
Stop codon in the procollagen II gene (COL2A1) in a family with the Stickler syndrome (arthro-ophthalmopathy). (1991)

Linkage analysis with restriction fragment length polymorphisms for the gene for type II procollagen (COL2A1) was carried out in a family with the Stickler syndrome, or arthro-ophthalmopathy, an autosomal dominant disorder that affects the eyes, ears, joints, and skeleton. The analysis demonstrated linkage of the disease and COL2A1 with a logarithm-of-odds score of 1.51 at zero recombination. A newly developed procedure for preparing cosmid clones was employed to isolate the allele for type II procollagen that was linked to the disease. Analysis of over 7000 nucleotides of the gene revealed a single base mutation that altered a CG dinucleotide and converted the codon CGA for arginine at amino acid position alpha 1-732 to TGA, a stop codon. From previous work on procollagen biosynthesis, it is apparent that the truncated polypeptide synthesized from an allele with a stop codon at alpha 1-732 cannot participate in the assembly of type II procollagen, and therefore that the mutation would decrease synthesis of type II procollagen. It was not apparent, however, why the mutation produced marked changes in the eye, which contains only small amounts of type II collagen, but relatively mild effects on the many cartilaginous structures of the body that are rich in the same protein.
Protection of direct current circuits of unmanned aerial vehicle by screen (2017)

Direct current circuits (power supply and control) of electronic equipment of unmanned aerial vehicle can be sources of unintentional electromagnetic emissions due to their connection with high-frequency circuits and functional nodes. This is one of the reasons for the unwanted dissemination of information and data. To eliminate this phenomenon it is proposed to shield the direct current circuits of unmanned aerial vehicle. The characteristics of the main types of known screens, materials for their fabrication, as well as the results of mathematical simulation of screening efficiency in the form of the dependence of the current penetration depth on the electromagnetic field frequency are considered. As the most effective screen is offered a wire braid made of steel wire with rectangular cross-section.
Wavelet domain image interpolation via statistical estimation (2002)

We propose a new wavelet domain image interpolation scheme based on statistical signal estimation. A linear composite MMSE estimator is constructed to synthesize the detailed wavelet coefficients as well as to minimize the mean squared error for high-resolution signal recovery. Based on a discrete time edge model, we use low-resolution information to characterize local intensity changes and perform resolution enhancement accordingly. A linear MMSE estimator follows to minimize the estimation error. Local image statistics are involved in determining the spatially adaptive optimal estimator. With knowledge of edge behavior and local signal statistics, the composite estimation is able to enhance important edges and to maintain the intensity consistency along edges. Strong improvement in both the visual quality and the PSNRs of the interpolated images has been achieved by the proposed estimation scheme.
A Laboratory Study of Low-Permeability Gas Sands (1980)

Routine permeabilities of tight gas sands are shown to be greater than under reservoir conditions, often by more than a hundred-fold, because of the great relief of stress, absence of connate water, and increased gas slippage. Correlations are presented that can be used to estimate in-situ permeability from routine data. Introduction Yearly compilations of U.S. oil and gas reserves by the American Gas Assn.1 show that U.S. gas reserves reached a maximum in 1967 of nearly 290 Tcf (8×1012 m3). With the exception of the year 1970 when Prudhoe Bay reserves were added, gas reserves have declined at a near-constant rate of 10 Tcf (2.8×1011 m3) per year since then. To help moderate or reverse this trend, the industry is extending its exploration and development efforts to include horizons with permeabilities in about the same range as common cement - i.e., microdarcies. The design of stimulation treatments to achieve commercial rates of production and reliable assessment of potential reserves in such low-permeability rocks demands accurate knowledge of their permeability, porosity, and flow properties. Though meager, there is sufficient information already available in the literature to suggest that some of the flow properties of these rocks differ markedly from those of more permeable rocks and, thus, require closer study. Results of several different studies of the properties of low-permeability gas-producing horizons have been published previously. A study by Thomas and Ward2 showed that the permeability of cores from the Pictured Cliffs and Fort Union formations were affected significantly by confining pressure. Porosities, however, were not altered greatly. They also reported that the presence of a simulated connate water saturation (about 500(0) reduced gas permeabilities to only 10% to 20% of the specific gas permeability. Vairogs et al.3 concluded that very low-permeability rocks are affected by stress to a greater degree than those having higher levels of permeability. This agreed with results reported earlier by McLatchie et al.4 Tannich5 mathematically studied liquid removal from fractured gas wells in low-permeability horizons and concluded that in very low-permeability rocks, cleanup times could be extensive but that permanent formation damage was not likely. The study, however, provided no measured experimental data of the flow properties of low-permeability rocks.
Synthetic and Recombinant Domains from a Midge's Giant Silk Protein (1993)

Silk proteins from the midge (Chironomus tentons, Diptera) are unique, in comparison to silkworm, spider and caddis fly silks, in their containing appreciable quantities of cysteine. At least six midge silk proteins are composed of tandem repeats containing cysteines in highly conserved positions. Repeats in the spI family of proteins can be divided into subrepeat (SR) and constant (C) regions, the latter of which contains four invariant cysteines. A combination of gel electrophoresis, sulfhydryl assays, and amino acid analyses were used to demonstrate that a synthetic C region peptide and a recombinant C+SR protein can fold and form two intramolecular disulfide bonds. These results suggest an additional role for cysteines in the pathway of midge silk protein assembly.
Remote access of CAN nodes used in a traffic control system to a central management unit over wireless ATM (2003)

Similar remote controller area network (CAN) applications may need to communicate with each other or a central management system for purposes such as downloading programs and downloading/uploading parameters and information. The paper describes the use of a CAN in a traffic control system (TCS) communicating with a central management unit (CMU) over wireless asynchronous transfer mode (WATM). CAN over WATM mapping using an encapsulation technique is also presented as an important part of the TCS and CMU internetworking system. Two different ATM service classes are utilized to provide the required quality of service for the data transfer between TCS and CMU.
Peptide synthesis in water and the use of immobilized carboxypeptidase Y for deprotection (1979)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPeptide synthesis in water and the use of immobilized carboxypeptidase Y for deprotectionGarfield P. Royer and G. M. AnantharmaiahCite this: J. Am. Chem. Soc. 1979, 101, 12, 3394–3396Publication Date (Print):June 1, 1979Publication History Published online1 May 2002Published inissue 1 June 1979https://doi.org/10.1021/ja00506a051RIGHTS & PERMISSIONSArticle Views564Altmetric-Citations73LEARN 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 InReddit PDF (392 KB) Get e-Alerts Get e-Alerts
Reversal of the Immunosenescent Phenotype by Dehydroepiandrosterone: Hormone Treatment Provides an Adjuvant Effect on the Immunization of Aged Mice with Recombinant Hepatitis B Surface Antigen (1993)

This study sought to establish whether administration of dehydroepiandrosterone (DHEA) or its sulfate derivative to aged mice could effectively correct the immunosenescent phenotype. Supplemental DHEA sulfate and topical DHEA fully corrected the age-associated dysregulated production of T cell lymphokines by cells from all of the different lymphoid organs tested. Either DHEA or DHEA sulfate supplementation promoted enhanced antibody responses against recombinant hepatitis B surface antigen (rHBsAg) by the aged recipients when incorporated directly into the vaccine. When DHEA was provided either topically or was incorporated directly into vaccine, vigorous primary and secondary antibody responses were detected in the aged mice given a single administration of DHEA, regardless of the mode of administration. It was also established that DHEA treatment could enhance specific antibody responses to rHBsAg in aged animals that had previously not been effectively immunized by conventional vaccination procedures.
Duchenne/Becker muscular dystrophy: A SHORT OVERVIEW OF THE GENE, THE PROTEIN, AND CURRENT DIAGNOSTICS (1989)

The goal of this review is to provide a concise overview of the current state of knowledge of both the gene which, when defective, results in Duchenne muscular dystrophy (DMD), and the normal and abnormal protein products of this gene. The diagnostic tools, both prenatal and postnatal, which have resulted from this research will also be presented. More comprehensive discussions of many aspects of this review can be found elsewhere.
Capillary electrophoresis and fluorescence studies on molecular beacon‐based variable length oligonucleotide target discrimination (2003)

Molecular beacons (MBs) are oligonucleotide probes having a compact hairpin structure, with a fluorophore attached to one end and a quencher molecule attached to the other end. In its native state, the fluorophore is quenched by virtue of its proximity to the quencher molecule. Upon hybridization with its complementary oligonucleotide target, fluorescence is elicited due to a conformational change that results in separation of the fluorophore and quencher molecule. The present study describes the hybridization interaction of an MB to various complementary target sequences. The effects of temperature and length of complementary target sequences on hybridization were investigated using capillary electrophoresis and solution-based fluorescence techniques. Hybridization efficiency was dependent on the ability of the target sequences to destabilize the stem region by binding directly to the stem region. Optimal hybridization occurred between 40 and 50 degrees C for all targets tested, with the true target forming a more stable hybrid complex.
Virtual vs. Concrete Manipulatives in Mathematics Teacher Education: Is One Type More Effective Than the Other? (2011)

Are virtual manipulatives as effective as concrete (hands-on) manipulatives in building conceptual understanding of number concepts and relationships in pre-service middle grades teachers? In the past, the use of concrete manipulatives in mathematics courses for Clayton State University’s pre-service middle grades teachers has been effective in building conceptual understanding of a variety of mathematical topics. This paper presents the results of a three-year study in which 78 middle grades mathematics teacher candidates used various concrete and virtual manipulatives to study fractions, integers and nondecimal-based numbers. They then compared each type of manipulative for ease of use and helpfulness in understanding the concepts addressed.
Anomaly Extraction in Backbone Networks Using Association Rules (2012)

Anomaly extraction refers to automatically finding, in a large set of flows observed during an anomalous time interval, the flows associated with the anomalous event(s). It is important for root-cause analysis, network forensics, attack mitigation, and anomaly modeling. In this paper, we use meta-data provided by several histogram-based detectors to identify suspicious flows, and then apply association rule mining to find and summarize anomalous flows. Using rich traffic data from a backbone network, we show that our technique effectively finds the flows associated with the anomalous event(s) in all studied cases. In addition, it triggers a very small number of false positives, on average between 2 and 8.5, which exhibit specific patterns and can be trivially sorted out by an administrator. Our anomaly extraction method significantly reduces the work-hours needed for analyzing alarms, making anomaly detection systems more practical.