gebhart/patrepeval huggingface dataset:
Group Authentication and Group Key Distribution for Ad Hoc Networks (2015)

Group authentication and group key distribution ensure the security of group communication. Most existing schemes of group authentication and group key distribution need the assistance of a group manager. However, deciding upon a group manager can be dicult work for some practical applications, especially in an Ad Hoc network. Therefore, we proposed a group authentication and group key distribution scheme that does not require a group manager. Our proposed scheme is an identitybased scheme based on bilinear pairing. In our proposed scheme, any user can easily generate a group for communication purposes. All or part of a group can authenticate each other and obtain a group key without foreknowledge or limiting the number of individuals attending the communication session. Any group member can join or quit the group communication securely in the duration of the meeting. Our proposed scheme requires little communication and computation cost and is resistant to common attacks. Furthermore, in order to take full advantage of the properties of computing ability, which can dier within Ad Hoc networks, our proposed scheme can designate the user with the greatest computing ability to distribute the group key.
Influence of Dietary Supplement of Various Oils on the Fatty Acid Composition of Hen's Eggs (1975)

産卵鶏に油脂を給与した場合,卵黄の脂肪酸組成が変化するが,本実験は不飽和度の異なる2種類の油脂と1種類の混合油脂を産卵鶏に給与することによって,卵黄中に二重結合の多い脂肪酸,特に必須脂肪酸を蓄積させることを目的としておこない,卵黄中の必須脂肪酸含量,不飽和度,総コレステロール量および血漿中の総コレステロール濃度などについて検討した.その結果,つぎのような成績を得た.1. リノール酸の多いサフラワー油添加区の卵黄脂質は,油脂無添加飼料から得られた卵黄脂質.と比較して,卵黄脂質に著しい相違を生じ,リノール酸の著しい増加とアラキドン酸の増加が観察された.2. リノンイン酸の多いアマニ油添加区の卵黄脂質は顕著なリノレイン酸の増加が観察された.3. サフラワー油とアマニ油の等量混合油添加区の卵黄脂質は,リノール酸,リノレイン酸の著しい増加が観察され,さらにサフラワー油添加区と同様アラキドン酸の増加が示された.4. 高度不飽和脂肪酸を含む油脂を飼料中に添加することによって,血漿中の総コレステロール濃度が著しく減少し,一方卵黄中の総コレステロール含量は増加した.
Growth inhibition of MCF-7 breast cancer cells by stable expression of an insulin-like growth factor I receptor antisense ribonucleic acid (1995)

Insulin-like growth factors (IGFs) play an important role in cellular proliferation, and IGF action appears to be involved in tumorigenesis. To determine the role of the IGF-I receptor in breast cancer cell growth, we stably transfected MCF-7 breast cancer cells with a construct encoding an antisense RNA complementary to the region surrounding the translation initiation site of the IGF-I receptor messenger RNA (mRNA). Control cells were transfected with vector alone. Clones expressing the antisense RNA exhibited a 30% reduction in endogenous IGF-I receptor mRNA levels and a significant reduction in receptor protein levels, as measured by both ligand binding assays and Western blot analysis. Antisense-expressing clones expressed approximately 30,000 receptors/cell compared with approximately 48,000-58,000 receptors/cell in control (neo) cells (P < 0.05). Although endogenous RNA:RNA hybrids were demonstrable in antisense-expressing cells, our results suggest that the major effect of the antisense may be the reduction in mRNA levels and not via an inhibition of translation. The reduction in receptor expression reduced both IGF-I- and serum-stimulated cellular proliferation. The maximum cell number reached at 96 h in the presence of IGF-I (100 ng/ml) was significantly reduced in antisense-expressing clones (22,000-30,000) compared with that in control (neo) cells (39,000-42,000). Furthermore, IGF-I-induced c-fos gene expression was reduced by 30% in the clones expressing the antisense RNA. These results strongly support a role for the IGF-I receptor in the proliferation of human breast cancer cells and suggest that strategies using this type of technology may prove useful in cancer therapy.
Conductivity Study of Porous Plasticized Polymer Electrolytes Based on Poly(vinylidene fluoride) A Comparison with Polypropylene Separators (2000)

The novel porous plasticized poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF/HFP)‐based electrolytes, compared with conventional polypropylene (PP) separators (Celgard® 2400), were studied via electrochemical impedance spectroscopy, gas adsorption/desorption method, differential scanning calorimetry, and a simple wettability test. The obtained impedance spectra of the electrolytes and separators are extensively discussed, inclusive of the effect of poor wetting upon them. The average pore diameter and Brunauer‐Emmett‐Teller surface area of PVDF/HFP‐based electrolyte membranes are 16.4 nm and , respectively. Ionic conductivity and electrolyte retention characteristic of these electrolyte membranes are superior to conventional PP separators. Moreover, PVDF/HFP‐based electrolyte membranes are free from the problem of wetting whereas the poor wetting of PP separators in some electrolytes may cause its effective conductivity to decrease by at least one order of magnitude. The enhanced wettability may be achieved by virtue of the swelling phenomenon between the polymer and the electrolytes. However, the activation energy for the conduction of PVDF/HFP‐based electrolytes is still larger than that of their parent neat electrolytes , which may imply that the influence of PVDF/HFP upon ionic mobility still exists even if they have been made nanoporous. © 2000 The Electrochemical Society. All rights reserved.
The Influence of Extracellular Factors Involved in the Collection of Blood in ACD on Maintenance of Red Cell Viability During Refrigerated Storage (1956)

Journal Article The Influence of Extracellular Factors Involved in the Collection of Blood in ACD on Maintenance of Red Cell Viability During Refrigerated Storage Get access John G. Gibson, II, M.D., John G. Gibson, II, M.D. Departments of Medicine, Peter Bent Brigham Hospital and Harvard Medical School, Boston, Massachusetts Search for other works by this author on: Oxford Academic Google Scholar William P. Murphy, Jr., M.D., William P. Murphy, Jr., M.D. Departments of Medicine, Peter Bent Brigham Hospital and Harvard Medical School, Boston, Massachusetts Search for other works by this author on: Oxford Academic Google Scholar Walter A. Scheitlin, M.D., Walter A. Scheitlin, M.D. Departments of Medicine, Peter Bent Brigham Hospital and Harvard Medical School, Boston, Massachusetts Search for other works by this author on: Oxford Academic Google Scholar Searle B. Rees, M.D. Searle B. Rees, M.D. Departments of Medicine, Peter Bent Brigham Hospital and Harvard Medical School, Boston, Massachusetts Search for other works by this author on: Oxford Academic Google Scholar American Journal of Clinical Pathology, Volume 26, Issue 8, 1 August 1956, Pages 855–873, https://doi.org/10.1093/ajcp/26.8.855 Published: 01 August 1956 Article history Received: 27 February 1956 Revision received: 05 April 1956 Accepted: 01 May 1956 Published: 01 August 1956
Inhibition of gastric secretion by the pyloric antrum (1974)

Progress report Inhibition of gastric secretion by the, pyloric antrum
Isolation and characterization of an acquired antithrombin antibody (1990)

Abstract A 68-year-old man, following mitral valve replacement, presented with a low-grade chronic consumptive coagulopathy. Laboratory analysis showed mild fibrinolysis, minimal effect of coumadin therapy, and a prolonged thrombin time (greater than 150 seconds using bovine IIa). When purified human IIa was used the thrombin time normalized to within 17 seconds of controls, suggesting a possible inhibitor of bovine IIa. An anti-IIa antibody was isolated by protein A-Sepharose (Sigma, St Louis, MO) chromatography followed by affinity chromatography using a bovine IIa-Sepharose column. The effects of this purified anti-IIa antibody on both bovine and human IIa procoagulant and anticoagulant functions were studied. The isolated immunoglobulin G (IgG) was observed to inhibit bovine IIa in all assays tested. This IgG was also able to slightly prolong fibrinogen clotting by human IIa. Using an enzyme-linked immunosorbent assay it was observed that the IgG bound to bovine IIa, bovine II, human IIa, but not to human II. Further, binding was detectable at approximately 50-fold lower concentrations to bovine IIa (1 nmol/L IgG concentration) than to human IIa (50 nmol/L IgG concentration). The effect of the antibody on the reaction between IIa and AT III/heparin was investigated. Human IIa was found to be protected from AT III/heparin neutralization in the presence of this antibody. These results suggest that this patient developed an antibody that strongly binds to and inhibits the bovine IIa in all assays tested. However, the antibody only significantly affects human IIa neutralization by AT III/heparin, and has little effect on the human IIa procoagulant activity. These data suggest that the decreased effect of AT III/heparin on this patient's IIa may have been a contributing factor in his coagulopathy. The exact cause of this antibody development is unclear, but the role of bovine topical thrombin used during cardiac valve replacement surgery is suspect.
Heuristics for Multilevel Lot-Sizing with a Bottleneck (1986)

In this paper we present a heuristic method, based on Lagrangian relaxation, for multilevel lot-sizing when there is a single bottleneck facility. A series of Lagrangian relaxations (one for each item in the product structure) is imbedded in a branch and bound procedure. The objective is to find a production schedule that fits within available capacity at minimum cost. The method has two solution phases, dual and primal. In the dual phase of the procedure, implied costs of setups and production are determined based on a tentative schedule. The primal phase is repeated with these new prices and we iterate to reach a good solution. The solution procedure is first tested on two special cases: uncapacitated multilevel lot-sizing and the capacitated, single-level multi-item lot sizing problem. The results show that the solution procedure can provide better solutions than some heuristics designed especially for those problems. Test results on the bottleneck problem indicate that good feasible solutions are found for problems too difficult to solve with exact methods.
Benzoxanthene-3,4-dicarboximides and benzimidazoxanthenoisoquinolinones (1988)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBenzoxanthene-3,4-dicarboximides and benzimidazoxanthenoisoquinolinonesXuhong Qian and Shengwu RenCite this: J. Chem. Eng. Data 1988, 33, 4, 528–529Publication Date (Print):October 1, 1988Publication History Published online1 May 2002Published inissue 1 October 1988https://pubs.acs.org/doi/10.1021/je00054a038https://doi.org/10.1021/je00054a038research-articleACS PublicationsRequest reuse permissionsArticle Views508Altmetric-Citations5LEARN 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
Photodynamic therapy of acne vulgaris using 5‐aminolevulinic acid 0.5% liposomal spray and intense pulsed light in combination with topical keratolytic agents (2009)

Abstract Background Increasing antibiotic resistance of Propionibacterium acnes and growing awareness on the side effects of topical and systemic drugs in the treatment of acne vulgaris by physicians and patients have paved the way for a search into new efficacious and safe treatment modalities such as photodynamic therapy (PDT). Although the efficacy of PDT using 20% 5‐aminolevulinic acid (ALA) cream has been established, phototoxic side effects limit its use. The 5‐ALA concentration can be lowered by a factor of 40 by changing the vehicle of 5‐ALA from a moisturizing cream to liposome encapsulation. Objectives Assessment of the efficacy and the safety of PDT using 5‐ALA 0.5% in liposomal spray and intense pulsed light (IPL) in combination with topical peeling agents (Li‐PDT‐PC) in acne vulgaris. Materials and Methods 32 patients suffering from acne participated in this randomized, prospective, single blind study. All patients were treated with Li‐PDT‐PC. During the study nine patients were additionally treated with topical or systemic antibiotics (Li‐PDT‐PC‐AT). These patients were removed from the study although their results were recorded. Results After a mean period of 7.8 months and a mean number of 5.7 treatments the mean total number of lesions dropped from 34.6 lesions to 11.0 lesions, resulting in a mean improvement of 68.2%. Side effects were minimal. Additionally, an intention to treat analysis was conducted. Conclusion Photodynamic therapy of acne vulgaris using 5‐ALA 0.5% liposomal spray and IPL in combination with topical peeling agents is safe and efficacious, even in patients with acne recalcitrant to standard therapy.
Three-Dimensional Computer Vision (1987)

The purpose of computer vision is to make computers capable of understanding environments from visual information. Computer vision has been an interesting theme in the field of artificial intelligence
A real-time motion estimation and compensation LSI with wide search range for MPEG2 video encoding (1996)

This paper presents a motion estimation and compensation large scale integration (LSI) for the MPEG2 standard. An embedded RISC processor and special hardware modules enable the LSI to achieve a sufficient ability to perform real-time operation and provide the availability to realize many kinds of block matching algorithms. Using a three-step hierarchical telescopic search algorithm, a single chip accomplishes real-time motion estimation with search ranges of /spl plusmn/32.5/spl times//spl plusmn/32.5 pixels for motion vectors. The chip was fabricated using 0.5-/spl mu/m CMOS technology and has an area of 16.5/spl times/16.5 mm/sup 2/ and 2.0 M transistors.
Above room temperature spin transition in a series of iron(II) bis(pyrazolyl)pyridine compounds (2008)

We report on the synthesis of a series of iron(II) compounds of the general composition [Fe II ( L ) 2 ](ClO 4 ) 2 · n CH 3 CN (where L is 4-iodo-2,6-bis(pyrazol-1-yl)pyridine ( L 1 ), 4-(4′-hydroxyphenyl)-2,6-bis(pyrazol-1-yl)-pyridine ( L 2 ), 4-(4′-trimethylsilylethynyl)-2,6-bis(pyrazol-1-yl)pyridine ( L 3 ), and 4-ethynyl-2,6-bis(pyrazol-1-yl)pyridine ( L 4 )). The compounds [Fe II ( L ) 2 ](ClO 4 ) 2 · n CH 3 CN ( 1 – 4 ; n = 0 for 1 , 2 , and 4 ; n = 2 for 3 ) were characterised by single crystal X-ray diffraction studies, MALDI-TOF mass spectrometry and elemental analysis. Temperature-dependent magnetic studies reveal different types of spin transition behaviour. Compounds [Fe II ( L 1 ) 2 ](ClO 4 ) 2 ( 1 ) and [Fe II ( L 2 ) 2 ](ClO 4 ) 2 ( 2 ) show above or near room temperature spin transition with T 1/2 = 333 and 281 K. The investigations of compound [Fe II ( L 3 ) 2 ](ClO 4 ) 2 ·2CH 3 CN ( 3 ) elucidate a more complex magnetic behaviour with spin transition of half of the involved iron(II) centres at temperatures above 140 K and ferromagnetic exchange coupling of the remaining high-spin centres below 125 K. Finally, compound [Fe II ( L 4 ) 2 ](ClO 4 ) 2 ( 4 ) is completely blocked in the diamagnetic low-spin state in the temperature range from 5 to 380 K.
Hybrid <i>Bacillus amyloliquefaciens</i> X <i>Bacillus licheniformis</i>α‐Amylases (1995)

A series of 33 single and mosaic hybrid alpha-amylases was constructed from the genes amyBA or amyLI, encoding the alpha-amylases from Bacillus amyloliquefaciens (AmyBA) and Bacillus licheniformis (AmyLI). The hybrid proteins, consisting of the entire alpha-amylase sequence with a variable portion of AmyBA or AmyLI origin, were characterized in order to find enzymes with new properties (thermostability, temperature and pH optima, and substrate specificity), and to localize the amino acid sequence regions responsible for the changes. The thermostability of the AmyBA/AmyLI (AL-type) hybrid proteins correlated with the position and the length of the hybrid sequence. The hybrid enzymes fell into six groups retaining, in comparison to AmyBA, a certain value of the extra-thermostability of AmyLI or becoming more thermolabile than AmyBA. Four regions are proposed to contain thermostability determinants (TSDs). They map between amino acid residues 34-76, 112-142, 174-179 and 263-276 of the respective hybrid enzymes, indicating the dominance of the N-terminal half of AmyLI for these hybrid enzymes' resistance against irreversible inactivation. Two (TSD3 and TSD4) coincide with regions I and II that had already been suggested to stabilise AmyLI [Suzuki, Y., Ito, N., Yuuki, T., Yamagata, H. & Udake, S. (1989) J. Biol. Chem. 264, 18,933-18,938]. The temperature dependence of activity of the AL-type hybrid alpha-amylases was compared at pH 6.4 and pH 7.6 and the hybrid enzymes of one thermostability group were found to have similar temperature responses. A hybrid region between residues 34-76 is demonstrated to correlate with the alpha-amylases' substrate specificity, i.e. either hydrolysis or accumulation of maltohexaose. This region was therefore named the G6G5 region. The exchange of internal sequences between residues 17-201 of AmyBA by the AmyLI counterpart in ALA-type mosaic hybrid alpha-amylases, with one exception (ALA99-429), unexpectedly destabilized the respective ALA-type hybrids. Two of these hybrid alpha-amylases (ALA17-151 and ALA76-151) were less thermostable than AmyBA, while others (ALA112-151, ALA112-201) were enzymically inactive. These data support specific roles of the predicted A1-B domain portion between residues 17-201 of those Bacillus alpha-amylases probably for correct folding and enzymic activity.
PREVENTION OF PRIMARY ISLET ISOGRAFT NONFUNCTION IN MICE WITH PRAVASTATIN1 (1998)

Our results in mice have shown the effectiveness of pravastatin for protecting islets from nonspecific inflammatory damage. Nicotinamide did not show a synergistic effect with pravastatin at the dosage used in this study. These results indicate that pravastatin may be a useful agent for clinical islet transplantation.
Solubilization and purification of the ATPase from the tonoplast of <i>Hevea</i> (1985)

The tonoplast-bound ATPase of Hevea brasiliensis (caoutchouc tree) was solubilized with dichloromethan and purified 100-fold with two ammonium sulfate precipitation steps and a G-200 gel filtration step. The resulting ATPase activity eluted according to a molecular mass of approximately 200 kDa and chromatographed at an isoelectric pH of 5.3. Subunits of molecular mass 110 kDa, 68 kDa, 24 kDa and 12 kDa appeared after treatment with 1% sodium dodecyl sulfate or spontaneously during storage of the solubilized ATPase. Dodecyl sulfate/polyacrylamide gel electrophoresis yielded four polypeptides of molecular mass 54 kDa, 66 kDa, 23 kDa and 13 kDa. From protein determination by ultraviolet absorption and Coomassie stain it appears that the 54-kDa and the 66-kDa polypeptides exist in multiple copies. No close resemblance to the membrane-bound ATPase of mitochondria, plastids, plasmalemma, chromaffin granules and synaptic vesicles is seen. No antibody cross-reaction to F1 of bacteria is observed. Therefore it is concluded that the vacuolar ATPase represents a novel type of ATPase. Many properties of the tonoplast-bound ATPase such as pH-dependence, substrate specificity, ion-dependence and inhibitor sensitivity did not change when the enzyme had been solubilized and purified. The phosphatase activity was lost during the purification procedure. The stimulation of ATP-hydrolysis in tonoplast vesicles by uncouplers and ionophores was absent in the solubilized ATPase, and also the stimulation by chloride was significantly reduced. Anion channel blockers, such as triphenyltin and 4,4'-diisothiocyano-2,2'-disulfonic acid stilbene, which are strong inhibitors of membrane-bound ATPase, fully or partly lost their inhibiting effect after solubilization of the ATPase. These results are interpreted to indicate that ionophores do not directly affect the ATPase molecule, whereas chloride might have a small direct effect on the ATPase besides its effect as a permeating anion.
Modeling and simulating of facility layout based on manufacturing costs (2011)

Facility layout is widely used in manufacturing system. It has a very important effect on the performance of manufacturing system. The three types of facility layout, including linear, U-shape, and semi-circular layout are introduced firstly. Based on the lower selling price of customers' demand, the components of manufacturing cost are analyzed secondly. Then the relationship between the manufacturing cost and objectives of facility layout are described. Meanwhile, the mathematical and simulation models related to several parts of manufacturing cost of facility layout are set up respectively. Finally, the simulation of these models for three types of facility layout is running in QUEST. After analyzing the simulation results, conclusions are obtained: (1) material handling cost of loop layout is lowest among the three types of facility layout; (2) area utilization rate of loop layout is higher than the others; (3) equipment and labor utilization of U-shape layout is the higher than others in the same moment. This research results will provide the references in selecting the type of facility layout based on manufacturing cost.
Virtual Reality and Cognitive Rehabilitation: A Brief Review of the Future (1997)

Virtual reality (VR) can be viewed as an advanced computer interface that allows the user to interact and become immersed within computer-generated simulated environments. Although media hype may have oversold VR's potential at this early stage in the technology's development, a uniquely suited match exists in VR's application to cognitive assessment and rehabilitation. VR offers the potential to develop human testing and training environments that allow for the precise control of complex stimulus presentations in which human cognitive and functional performance can be accurately assessed and rehabilitated. However, basic feasibility issues need to be addressed for this technology to be reasonably and efficiently applied to the cognitive rehabilitation (CR) of persons with acquired brain injury and neurological disorders. This article will present a brief introduction to the concepts of VR, as well as a rationale for the VRCR connection. Basic theoretical and pragmatic issues for this application will be discussed and a review of relevant work that has been done, or is currently in progress, will be presented along with recommendations for future investigation in this area.