gebhart/patrepeval huggingface dataset:
Adaptive S-ALOHA CDMA as an alternative way of integrating services in mobile environments (2000)

Code-division multiple-access (CDMA) schemes appear to be very promising access techniques for coping with the requirements of third-generation mobile systems, mainly because of their flexibility. This paper proposes an adaptive S-ALOHA DS-CDMA access scheme as a method for integrating nonreal-time (i.e., Internet applications) and real-time (i.e., voice) services in a multicell scenario by exploiting the potentials of CDMA under time-varying channel load conditions. The adaptive component makes data terminals autonomously change their transmission rate according to the total (voice+data) channel occupancy, so that the minimum possible data delay, which can be analytically obtained by defining a birth-death process, is almost always achieved. Moreover, by means of a simplified cellular model, the proposed algorithm revealed the same behavior, i.e., it tries to select the most suitable transmission rate at any time slot, when it is affected by intercell interference and even by power control imperfections. Finally, in order to gain more insight into the potentials of such an access strategy, the adaptive S-ALOHA CDMA scheme is then compared to a reservation time-division multiple-access (TDMA)-based protocol (PRMA++), showing the benefits of the CDMA-based solution in terms of capacity, flexibility, and data delay performance.
The myofibroblast: a study of normal, reactive and neoplastic tissues, with an emphasis on ultrastructure. part 2 - tumours and tumour-like lesions. (2005)

This paper describes the ultrastructure of the commoner myofibroblastic tumours and tumour-like lesions. The objective is to complement mainstream pathology texts, which have concentrated on the clinical and light microscopy features of these lesions and which have arguably but understandably somewhat neglected electron microscopy as an ancillary diagnostic tool and a technique for investigating tumour cell biology. Ultrastructural features are described of nodular fasciitis, the myofibromatoses (including Dupuytren's disease), inflammatory myofibroblastic tumour, post-operative spindle cell nodule, fibroma of tendon sheath, fibrous pseudotumour, benign fibrous histiocytoma, atypical fibroxanthoma, dermatofibrosarcoma protuberans, myofibrosarcoma (myofibroblastic sarcoma), malignant fibrous histiocytoma (pleomorphic myofibrosarcoma), epithelioid sarcoma and spindle-cell carcinoma. Fibrosarcoma and leiomyosarcoma are illustrated for comparison. The fibronexus is emphasised as an important marker for the most confident diagnosis of myofibrosarcoma. Some pathologists accept a light microscope definition, which includes alpha-smooth-muscle actin positivity, h-caldesmon negativity and, in some cases, desmin positivity. Caution in the interpretation of desmin staining in a possible myofibroblastic lesion is urged, since, in combination with an ultrastructurally identified lamina, it more probably suggests true smooth-muscle differentiation. Myofibroblastoma and angiomyofibroblastoma are examples of tumours argued on the basis of ultrastructural findings (sometimes in combination with desmin staining) to be primitively differentiated smooth-muscle cell rather than myofibroblastic proliferations.
Remote reading and data management system for kWh meters with power quality monitoring (1996)

A new remote reading system for kWh meters has been developed because new requirements have emerged. The amount of data to be collected and processed is increasing with the number of remote readable meters. Data from the meter reading system must be accessible for invoicing and energy management systems in an easy and standardised way. Deregulation of the energy markets brings new players that need energy consumption measurement data. New applications like monitoring the power quality and power network state are included in the kWh meter and its reading system. However, the reliability and confidentiality of the measurements should not be violated.
Cytokines and erythrocyte incompatibility. (1994)

The strong resemblance between the clinical manifestations of hemolytic transfusion reactions and sepsis, in which cytokine production has a central role, suggests that similar pathophysiologic mechanisms are involved. There is an expanding body of clinical and experimental evidence that cytokines, especially interleukin-1, tumor necrosis factor, interleukin-6, and interleukin-8, are principle mediators of immune responses to erythrocyte incompatibility. Recent studies have further suggested that the monocyte chemotactic and activating factor, monocyte chemoattractant protein-1, and the anti-inflammatory cytokine interleukin-1 receptor antagonist are produced in experimental models of hemolytic transfusion reactions. Differing levels and patterns of expression of these cytokines may be seen in models of intravascular hemolysis due to ABO incompatibility and extravascular hemolysis due to Rh incompatibility, which correlate with the recognized clinical differences between these two types of reactions. Furthermore, recent studies have demonstrated that several of these same cytokines are produced during the storage of platelet concentrates, which may account for some febrile reactions that are not prevented by the use of leukocyte reduction filters.
Synthesis, crystal structure and properties of bis(hexafluoroacetylacetonato)tetrazinecopper(II) (2006)

Lixin Lia, Christopher P. Landeeb, Mark M. Turnbulla* & Brendan Twamleyc a Carlson School of Chemistry and Biochemistry , Clark University , Worcester, MA 01610, USA b Department of Physics , Clark University , Worcester, MA 01610, USA c University Research Office , University of Idaho , Moscow, ID 83844, USA
Vitamin E TPGS Used as Emulsifier in the Preparation of Nanoparticulate Systems (2012)

Fil: Bernabeu, Ezequiel Adrian. Universidad de Buenos Aires. Facultad de Farmacia y Bioquimica. Departamento de Tecnologia Farmaceutica; Argentina;
한국 생명보험 산업의 DDF 생산효율성 분석 (2007)

This study analyzes the impact of restructuring and reorganization on the life insurance industry after the Asian financial crisis by examining the efficiency in the perspective of sales efficiency and investment efficiency respectively. For this we introduced directional distance function(DDF) in the case undesirable output was included. In other words, by introducing premium paid with negative effects as undesirable output in the perspective of sales efficiency, we attempted to prevent distortion of the efficiency analysis that could occur in the case this was not considered. According to analysis results, since 1997 the overall efficiency of insurance companies was improved due to continuous restructuring. Specifically, since 2000 investment efficiency continuously improved due to the reduction of investment operating costs, but sales efficiency on the other hand dropped. In other words, the overall increase of efficiency of insurance companies stems from improved efficiency of asset management instead of rationalization of business.
Microdetermination of plasma phospholipids by trichloroacetic acid precipitation. (1950)

Abstract 1.1. A method is presented in which plasma phospholipids can be determined in 0.2 ml. of plasma. 2.2. The method is simpler and more rapid than methods involving the use of fat solvents. 3.3. In addition to phospholipid phosphorus, the method lends itself to the determination of inorganic plasma phosphate.
Total Synthesis of Cyclic ADP-carbocyclic-ribose, a Stable Mimic of Ca<sup>2+</sup>-Mobilizing Second Messenger Cyclic ADP-Ribose<sup>1</sup> (2001)

The synthesis of cyclic ADP-carbocyclic-ribose (cADPcR, 4) designed as a stable mimic of cyclic ADP-ribose (cADPR, 1), a Ca2+-mobilizing second messenger, was achieved using as the key step a condensation reaction with the phenylthiophosphate-type substrate 14 to form an intramolecular pyrophosphate linkage. The N-1-carbocyclic-ribosyladenosine derivative 16 was prepared via the condensation between the imidazole nucleoside derivative 17, prepared from AICA-riboside (19), and the readily available optically active carbocyclic amine 18. Compound 16 was then converted to the corresponding 5' '-phosphoryl-5'-phenylthiophosphate derivatives 14. Treatment of 14 with AgNO3 in the presence of molecular sieves (3 A) in pyridine at room temperature gave the desired cyclization product 32 in 93% yield, and subsequent acidic treatment provided the target cADPcR (4). This represents a general method for synthesizing biologically important cyclic nucleotides of this type. 1H NMR analysis of cADPcR suggested that its conformation in aqueous medium is similar to that of cADPR. cADPcR, unlike cADPR, was stable under neutral and acidic conditions, where under basic conditions, it formed the Dimroth-rearranged N6-cyclized product 34. cADPcR was also stable in rat brain membrane homogenate which has cADPR degradation activity. Furthermore, cADPcR was resistant to the hydrolysis by CD38 cADPR hydrolase, while cADPR was rapidly hydrolyzed under the same conditions. When cADPcR was injected into sea urchin eggs, it caused a significant release of Ca2+ in the cells, an effect considerably stronger than that of cADPR. Thus, cADPcR was identified as a stable mimic of cADPR.
Magnetization transfer induced biexponential longitudinal relaxation (2008)

Longitudinal relaxation of brain water (1)H magnetization in mammalian brain in vivo is typically analyzed on a per-voxel basis using a monoexponential model, thereby assigning a single relaxation time constant to all (1)H magnetization within a given voxel. This approach was tested by obtaining inversion recovery (IR) data from gray matter of rats at 64 exponentially spaced recovery times. Using Bayesian probability for model selection, brain water data were best represented by a biexponential function characterized by fast and slow relaxation components. At 4.7T, the amplitude fraction of the rapidly relaxing component is 3.4% +/- 0.7% with a rate constant of 44 +/- 12 s(-1) (mean +/- SD; 174 voxels from four rats). The rate constant of the slow relaxing component is 0.66 +/- 0.04 s(-1). At 11.7T, the corresponding values are 6.9% +/- 0.9%, 19 +/- 5 s(-1), and 0.48 +/- 0.02 s(-1) (151 voxels from four rats). Several putative mechanisms for biexponential relaxation behavior were evaluated, and magnetization transfer (MT) between bulk water protons and nonaqueous protons was determined to be the source of biexponential longitudinal relaxation. MR methods requiring accurate quantification of longitudinal relaxation may need to take this effect explicitly into account.
A General Model for Accounts-Receivable Analysis and Control (1973)

The problem of monitoring the ongoing receivables collection experience of an enterprise which sells on credit is, in essence, the problem of identification. The concern is an accurate appraisal of customer account payment patterns — in particular, a determination of whether and to what extent those patterns vary over time. Successful execution by the credit manager of his responsibilities for policy formulation, collection enforcement, and forecasting necessarily depends heavily on the availability to him of a reliable reporting mechanism.
Managing NFS and NIS (2001)

From the Publisher:
Managing NFS and NIS is for system administrators who need to set up or manage a network filesystem installation. NFS (Network Filesystem) is probably running at any site that has two or more UNIX systems. NIS (Network Information System) is a distributed database used to manage a network of computers. The only practical book devoted entirely to these subjects, this guide is a must-have for anyone interested in UNIX networking.
Neuronal Expression of a Functional Receptor for the C5a Complement Activation Fragment (2001)

The present studies were undertaken to determine whether neuronal subsets in normal brains constitutively express functionally competent C5a receptors. In situ hybridization studies coupled with immunohistochemical approaches revealed that most neurons in the hippocampal formation, many pyramidal cortical neurons, and cerebellar Purkinje neurons in normal human and murine brains constitutively express C5a receptors. Neuronal C5a receptors bound C5a-coated fluorescent microspheres, and primary rodent hippocampal neurons responded to C5a with increased calcium fluxes via a pertussis-sensitive, presumably Gi-coupled protein. Additional studies with human neuroblastoma cells conducted to address the functional role of C5a receptors revealed that C5a triggered rapid activation of protein kinase C and activation and nuclear translocation of the NF-kappa B transcription factor. In addition, C5a was found to be mitogenic for undifferentiated human neuroblastoma cells, a novel action for the C5aR. In contrast, C5a protected terminally differentiated human neuroblastoma cells from toxicity mediated by the amyloid A beta peptide. Thus, normal rodent hippocampal neurons as well as undifferentiated and differentiated human neuroblastoma cells express functional C5a receptors. These results have implications for understanding the role of neuronal C5aR receptors in normal neuronal development, neuronal homeostasis, and neuroinflammatory conditions such as Alzheimer's disease.
The 9E3 protein: immunolocalization <i>in vivo</i> and evidence for multiple forms in culture (1992)

The avian gene 9E3/CEF4 belongs to a group of genes whose products are highly conserved and are homologous to inflammatory mediators. These genes, sometimes referred to as the gro family, are also expressed upon wounding or serum-stimulation of quiescent cells, suggesting that they may be important in aspects of growth and/or wound healing. We have used an antibody to the product of the 9E3 gene to show for the first time the distribution in vivo of the protein of one of these genes. The polyclonal antibody was produced against a synthetic peptide, [Cys76], 9E3, (77-103), located at the carboxy end of the molecule. The specificity of the antibody was determined by transfection of the 9E3 cDNA into Cos 7 cells, which do not express this gene. Moreover, despite the high homology between 9E3 and IL-8, the antibody did not crossreact with this molecule. The antibody was used to immuno-precipitate the protein from cultured normal and RSV-transformed chick embryo fibroblasts (CEFs) and to determine its distribution in tissues of newly hatched chicks. The staining was abundant in the cells and extracellular matrix (ECM) of connective tissue and other tissues of mesenchymal origin, such as bone and tendon. Most cells in the granulation tissue of wounds stained, some more intensely than others; the ECM also stained, especially in areas of scar tissue where collagen is abundant. In RSV-induced tumors, the protein was absent except in necrotic areas where a few cells--potentially macrophages--stained. In general, as expected, the protein was present in the cells and tissues that expressed the mRNA, but there were exceptions.(ABSTRACT TRUNCATED AT 250 WORDS)
X-GTRBAC admin (2004)

Access control in enterprises is a key research area in the realm of Computer Security because of the unique needs of the target enterprise. As the enterprise typically has large user and resource pools, administering the access control based on any framework could in itself be a daunting task. This work presents X-GTRBAC Admin, an administration model that aims at enabling policy administration within a large enterprise. In particular, it simplifies the process of user-to-role and permission-to-role assignments, and thus allows decentralization of the policy administration tasks. Secondly, it also allows for specifying the domain of authority of the system administrators, and hence provides mechanism to distribute the administrative authority over multiple domains within the enterprise. The paper also illustrates the applicability of the administrative concepts presented in our framework for enterprise-wide access control.
Nematicidal Activity of Mint Aqueous Extracts against the Root-Knot Nematode Meloidogyne incognita (2013)

The nematicidal activity and chemical characterization of aqueous extracts and essential oils of three mint species, namely, Mentha × piperita , Mentha spicata , and Mentha pulegium , were investigated. The phytochemical analysis of the essential oils was performed by means of GC-MS, whereas the aqueous extracts were analyzed by LC-MS. The most abundant terpenes were isomenthone, menthone, menthol, pulegone, and carvone, and the water extracts yielded mainly chlorogenic acid, salvianolic acid B, luteolin-7-O-rutinoside, and rosmarinic acid. The water extracts exhibited significant nematicidal activity against Meloidogyne incognita , and the EC50/72h values were calculated at 1005, 745, and 300 mg/L for M. × piperita, M. pulegium, and M. spicata, respectively. Only the essential oil from M. spicata showed a nematicidal activity with an EC50/72h of 358 mg/L. Interestingly, menthofuran and carvone showed EC50/48h values of 127 and 730 mg/L, respectively. On the other hand, salicylic acid, isolated in the aqueous extracts, exhibited EC50 values at 24 and 48 h of 298 ± 92 and 288 ± 79 mg/L, respectively.
In vitro Transcription and Purification of RNAs of Different Size (2005)

In vitro run-off transcription from a double-stranded DNA template by T7 RNA polymerase is an elegant way to obtain highly pure and uniform RNA oligonucleotides of lengths ranging from about 15 to several thousand nucleotides. Here we describe the different strategies applied and optimized in our laboratory to enzymatically synthesize RNAs as necessary when working at the interface of bioinorganic chemistry, coordination chemistry, RNA biochemistry and structural biology.
Effect of deletion mutations on the function of CFTR chloride channels. (1993)

Mutations in the gene for the cystic fibrosis transmembrane conductance regulator (CFTR) cause cystic fibrosis (CF). CFTR contains two membrane-spanning domains (MSDs), two nucleotide-binding domains (NBDs), and a unique R domain; CFTR functions as a Cl- channel regulated by phosphorylation and by nucleoside triphosphates. To study the domains of CFTR involved in Cl- channel function, we expressed mutants lacking various domains and assayed cAMP-stimulated Cl- channel activity using the halide-sensitive fluorophore, 6-methoxy-N-(3'-sulfopropyl)-quinolinium. We previously reported that deletion of part of the R domain (residues 708-835) produced Cl- channels that were constitutively open. Here we show that more extensive deletions within the R domain failed to generate functional CFTR Cl- channels; the portion of protein that could be deleted without destroying function corresponds to sequences that are not conserved in related proteins. In contrast, when we deleted the two NBDs (either alone, together, or in combination with the R domain), we did not observe functional Cl- channels. CFTR has a unique carboxyl terminus that is conserved across species. However, truncation of the carboxyl terminus (up to, but not including, NBD2) produced a regulated anion permeability similar to that of wild-type CFTR, suggesting that this region is not essential for channel function. Expression of two CF-associated nonsense mutants (G542X and W1316X) also failed to generate functional CFTR Cl- channels. These results help define structure:function relationships for CFTR and identify the domains that are required for Cl- channel function.
Proactive recovery for BTI in high-k SRAM cells (2011)

Recent studies of BTI behavior in SRAM cells showed that for high-K metal gate stack technology, PBTI induced V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">th</sub> shift in NMOS is as significant as NBTI induced V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">th</sub> shift in PMOS. Previous techniques of mitigating NBTI in SRAM focus mainly on PMOS and thus lack the ability to mitigate PBTI of NMOS transistors. In this paper, we propose a novel design to recover 4 internal gates within a SRAM cell simultaneously to mitigate both NBTI and PBTI effects. In the evaluated L2 cache, our technique effectively slows down the cell failure probability increase, and achieves 4.64/2.86× (best/worst case) lifetime improvement over normal design.
Reactions of 5,5-disubstituted 3-nitrosooxazolidones. New syntheses of vinyl azides, vinyl isothiocyanates, vinyl diethyl phosphonates, and divinyl ethers (1973)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactions of 5,5-disubstituted 3-nitrosooxazolidones. New syntheses of vinyl azides, vinyl isothiocyanates, vinyl diethyl phosphonates, and divinyl ethersMelvin S. Newman and Wei C. LiangCite this: J. Org. Chem. 1973, 38, 14, 2438–2441Publication Date (Print):July 1, 1973Publication History Published online1 May 2002Published inissue 1 July 1973https://pubs.acs.org/doi/10.1021/jo00954a005https://doi.org/10.1021/jo00954a005research-articleACS PublicationsRequest reuse permissionsArticle Views125Altmetric-Citations25LEARN 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
Shape Effects on Electronic States of Nanocrystals (2003)

High-performance supercomputing and high-fidelity atomistic methods are used to study the shape effects on the single-particle electronic states of nanocrystals. We found that the shape can be used as an efficient way to control the electronic structures of the nanocrystals. Changing the shape is more flexible and provides more variety of electronic states than simply changing the size of the system. The special features of the electronic states achieved by different shapes of the nanocrystals can be used in various device applications. Simple rules are summarized to predict the electronic structure shape effects on similar nanocrystals.
Leptin Resistance During Aging Is Independent of Fat Mass (2002)

Increased fat mass, abdominal adiposity, and insulin resistance are typical findings in aging mammals and are frequently associated with leptin resistance and increased plasma leptin levels. To examine whether leptin's failure in aging is due to aging per se or to changes in body fat mass or distribution, we studied aging rats that underwent calorie restriction throughout their lives, maintaining their youthful body fat pattern and metabolic profile. Leptin's action was assessed by measuring its ability to regulate food intake, fat mass and its distribution, peripheral and hepatic insulin action, and its own gene expression in fat. Our results show that leptin's action is markedly diminished in aging rats, independently of their body fat pattern. Leptin's failure in this model suggests its causative role in the metabolic decline seen with aging.