gebhart/patrepeval huggingface dataset:
Variation of performance properties of cellulose by chemical transformation (1979)

Chemical transforming of the macromolecu].e as a means of changing physical and performance properties of polymers is rather an exception with synthetic polymersco- polymerisation being here more suitable in most cases -, but nearly always is the only choice with natural polymers like cellulose. After mentioning briefly some technological relevant examples of modifying the chemical structures of synthetic polymers like PVC or copolymers of ethylene by chemical reactions with the macromolecule, a survey is given on the present state of changing the product properties of cellulose by chemical transformation covering especially the fields of cellulose fibres, cellulosic membranes, end water-soluble or water-swellable synthetic gums like oellulose ethers. With the latter, the influence of DS end substituent distribution on solubility is stressed and demonstrated by some of our recent results. Finally, connections between cellulose chemistry and polysaccharide chemistry in general are considered with regard to modification, charac-.
Improving cardiac cine MRI on 3T using 2D k-t accelerated auto-calibrating parallel imaging (2014)

Recently, 3D cine has gained attention due to its capability for single breath-hold volumetric measurement [1]. Nonetheless, conventional 2D cine maintains two intrinsic advantages, namely, its superior blood-myocardium contrast owing to blood in-flow effects and reduced SSFP banding artifacts with more localized slice-by-slice shimming. These advantages are more prominent at high field. This work intends to optimize a k-t acceleration method, kat ARC [2], for 2D cine and preliminarily investigate its performance vs. 3D cine at 3T.
Safety of early immunization against measles/mumps/rubella after bone marrow transplantation (2002)

Erythrocyte mean cell volume and genetic polymorphism of aldehyde dehydrogenase 2 in alcohol drinkers
WEBKDD 2000 - Web Mining for E-Commerce. (2000)

The reward summation function is the plot of self-stimulation performance as a function of the number of pulses in a train of fixed duration. It has previously been shown that drugs that impair performance compress this curve but do not shift it laterally; whereas when the reinforcing efficacy is reduced by reducing current intensity, the curve shifts laterally. The amount of the shift is a measure of the magnitude of a drug's effect upon reinforcing efficacy. We report here that pimozide shifts the curve to the right in a dose-dependent manner, indicating an impairment of reinforcing efficacy, while amphetamine shifts it to the left, indicating an enhancement of reinforcing efficacy. When the two drugs are given together their effects on the reward summation function cancel out. These results are consistent with the hypothesis that pimozide and amphetamine exert their effects on reinforcing efficacy via one and the same set of dopaminergic synapses.
Bis(benzonitrile)dibromopalladium(II) (2001)

[15003-43-7] C14H10Br2N2Pd (MW 472.47) InChI = 1S/2C7H5N.2BrH.Pd/c2*8-6-7-4-2-1-3-5-7;;;/h2*1-5H;2*1H;/q;;;;+2/p-2 InChIKey = OKDHIPXOBPPHTG-UHFFFAOYSA-L (palladium catalyst used in the codimerization of alkynes and allyl halides;1-3 synthesis of α-(Z)-halomethylene-γ-butyrolactone derivatives;4-6 isomerization of alkenes7, 8) Physical Data: dark brown crystals. Solubility: sol benzene, methanol. Form Supplied in: not commercially available. Preparative Method: prepared in 90% yield by reacting PdBr2 in PhCN with prolonged heating at 100 °C. The reaction mixture is filtered while hot and the filtrate cooled to give a brown precipitate. Additional product is obtained by precipitation with cyclohexane. Purification: recrystallize from low-boiling petroleum ether. Handling, Storage, and Precautions: usually prepared just prior to use.
Diagnosis of infectious diarrheal diseases. (1988)

For many years, microbiologic examination of feces was focused on the isolation of two members of the family Enterobacteriaceae--Salmonellae and Shigellae. Over the past two decades, other enteric pathogens such as the various classes of diarrheagenic E. coli, Campylobacter, Vibrio spp., Yersinia enterocolitica, and Clostridium difficile have gained prominence. A newly recognized protozoan parasite, Cryptosporidium is now known to infect both immunocompetent and immunodeficient individuals. Added to these is the growing list of viruses incriminated in diarrheal diseases and gastritis. This article provides some of the basic information needed to allow for the isolation and identification of many of the currently recognized enteric pathogens. It also provides information on some of the currently available rapid test procedures that will speed up stool specimen testing and allow for more timely reporting to the physician.
High-data-rate systems for space applications (1995)

High data rate communications systems will soon be needed for space applications. Technology and applications which support high data rates are already in place for ground- based telecommunications, or will be in the future. The advantages of an optical system over a traditional RF link for free space communications are particularly compelling for high data rates. We have been developing the necessary technology to demonstrate the feasibility of high rate free-space optical communications technology at 1.5 micrometers . The existence of a large, mature technology base at 1.5 micrometers developed for the telecommunications industry has allowed us to focus our development effort on two key technologies needed for space applications that have not been developed for the ground: a 1 Watt class optical power amplifier and a near quantum limited receiver. This paper will describe the overall system design for a high data rate optical communications system and present experimental results demonstrating < 50 photons/bit sensitivity at 10 Gbps with 1 Watt of optical power. The existence of a feasibility demonstration at this data rate enables downward scalability to data rates of 1 Gbps or less with small, inexpensive terminals.
Angiotensin–Neprilysin Inhibition in Heart Failure with Preserved Ejection Fraction (2019)

Sacubitril-valsartan did not result in a significantly lower rate of total hospitalizations for heart failure and death from cardiovascular causes among patients with heart failure and an ejection fraction of 45% or higher. (Funded by Novartis; PARAGON-HF ClinicalTrials.gov number, NCT01920711.).
Sheep Genomics - Core Technologies and Resources (2005)

This specially curated group of 178 titles covers subjects ranging from biodiversity conservation to agriculture and ecology to zoology. Books explore urban ecology, climate change, fire mitigation, and more. These titles are included in the CSIRO Publishing BioSelect Collection.
Damage Identification Based on Vibration Response of Prestressed Concrete Pipes (2010)

Damages and defects in prestressed concrete pipes (PCCP), such as prestressing wire breaks and cracks, reduce the stiffness and natural frequencies of the pipe. In this study, A finite element method (FEM) was used to evaluate the natural frequencies and mode shapes of PCCP. Structural health monitoring (SHM) of PCCP was performed by considering the variation of natural frequencies due to wire breaks. For damage identification, vibration responses of undamaged and damaged PCCP were compared. The severity of damage was presented by increasing the number of broken prestressing wires. The proposed model was applied to obtain the effects of wire breaks on resonance response of PCCP. Based upon the obtained results, suggestions for future work were presented and discussed.
Role of accessory cell processing and presentation of shed H-2 alloantigens in allospecific cytotoxic T lymphocyte responses. (1984)

The present study was undertaken to evaluate the role of accessory cell processing of MHC alloantigens in the initiation of primary allospecific CTL responses. To first determine whether antigen processing by accessory cells is involved in the initiation of allospecific CTL responses, accessory cells were retreated with the lysosomotropic drug chloroquine before their addition to culture. It was found that chloroquine pretreatment abrogated their ability to function as accessory cells only when they were of responder haplotype and had no effect when the accessory cells were of stimulator haplotype. Although accessory cells of either responder or stimulator haplotype can initiate allospecific CTL responses, we have previously demonstrated that they do so by activating distinct classes of T helper TH) cells. Indeed, the differential effects of chloroquine on accessory cells of responder or stimulator haplotypes were shown to reflect the fact that chloroquine pretreatment markedly impaired the ability of accessory cells to activate self-Ia-restricted TH cells, but had little effect on the ability of the same accessory cells to activate either allo-class I- or allo-class II-specific TH cells. We next examined the possibility that accessory cells of responder haplotype mediate alloresponses by acquiring and processing shed MHC alloantigens derived from the stimulator cell population. In these experiments, accessory cell-depleted stimulator cells were fixed with paraformaldehyde to inhibit shedding of their surface MHC alloantigens. It was observed that even though mixed stimulator cells were recognized normally by allospecific CTL precursors, they completely failed to stimulate CTL responses mediated by responder haplotype accessory cells, indicating that the function of such accessory cells is dependent upon their acquisition of shed MHC alloantigens. Taken together, the data presented in this report demonstrate that accessory cells of responder haplotype function in allospecific CTL responses by acquiring and processing shed class I MHC alloantigens, and by then presenting the processed alloantigens in association with self-Ia determinants to self-Ia-restricted TH cells. Thus, these data indicate that the self-Ia-restricted TH cells that are involved in allospecific CTL responses recognize processed class I alloantigens in association with self-Ia determinants.
Rare case of pancreatic cancer with leptomeningeal carcinomatosis (2015)

Leptomeningeal carcinomatosis occurs very rarely in patients with pancreatic cancer. Leptomeningeal carcinomatosis is characterized by multifocal seeding of the leptomeninges by malignant cells that originate from a solid tumor. To the best of our knowledge, brain metastasis from pancreatic cancer is extremely rare. Leptomeningeal carcinomatosis is estimated to occur in 3% to 8% of cases of solid tumors. The clinical manifestation usually involves neurological symptoms, including dizziness, headache, vomiting, nausea, and hemiparesis, symptoms similar to those of meningitis or brain tumors. Diagnostic methods for leptomeningeal carcinomatosis include brain magnetic resonance imaging and cerebrospinal fluid examination. Here, we describe a case of leptomeningeal carcinomatosis in which the primary tumor was later determined to be pancreatic cancer. Brain magnetic resonance imaging findings showed mild enhancement of the leptomeninges, and cerebrospinal fluid cytology was negative at first. However, after repeated spinal taps, atypical cells were observed on cerebrospinal fluid analysis and levels of tumor markers such as carbohydrate antigen 19-9 in cerebrospinal fluid were elevated. Abdominal computed tomography, performed to determine the presence of extracerebral tumors, revealed pancreatic cancer. Pancreatic cancer was confirmed histopathologically on examination of an endoscopic ultrasound-guided fine needle aspiration specimen.
Scaling self-aligned contacts for 0.25-μm and below (1997)

Self-aligned contacts (SAC) have been successfully scaled down to 0.2 tm, for high speed SRAM fabrication at the 64Mb density level. All factors affecting SAC contact resistance (Re) are investigated in depth to reduce the overall resistance of SACs. For a 0.25x0.45 im2 poly/n contact a contact resistance of 65 (1 =8 has been obtained. The factors which allow SACs to enable fabrication technologies at and below the 0.25 im size scale, are discussed.
ChemInform Abstract: NEW CONDITIONS FOR CONTROLLED CLAISEN REARRANGEMENTS OF ALLYL ARYL ETHERS (1976)

Abstract Bei der Behandlung mit Acetanhydrid/Kaliumacetat erhält man aus den Allyläthern (I) die Umlagerungsprodukte (II), mit Buttersäureanhydrid in Dimethylanilin erhält man aus (Ia) überwiegend die beiden Umlagerungsprodukte (IIIa) und (IVa).
Effect of Interleukin-4 on Cytolytic T Cells (1991)

Recent studies indicate that interleukin-4 (IL-4) is a potent T-cell growth factor which may have a significant stimulatory effect on alloreactive cytolytic T lymphocytes (CTL). In this study, it was found that exposure of a recombinant retrovirus (RVpC)-specific, MHC-restricted, polyclonal CTL line to IL-4 resulted in the generation of CTL which efficiently lysed RVpC-infected as well as uninfected autologous target cells. A number of CTL cloned lines was generated from the parental line grown for 2 weeks with autologous stimulator cells in IL-4-containing media which again lysed RVpC-expressing as well as uninfected autologous target cells but not their allogeneic HLA-mismatched counterparts. These results extend previous observations in allogeneic systems and suggest that, in a syngeneic system, IL-4 may stimulate the recruitment of autoreactive CTL in vitro. This is a previously unrecognised property of IL-4, the in vivo significance of which remains to be established.
Phase Front Design with Metallic Pillar Arrays (2010)

We demonstrate numerically the ability to design a phase front using an array of metallic pillars. We show that in such structures, the local phase delay upon transmission can be tuned by local geometry.
A Poor Prognosis Subtype of HNSCC Is Consistently Observed across Methylome, Transcriptome, and miRNome Analysis (2013)

Integration of data across several omic profiles leads to better selection of patients at higher risk, identification of relevant molecular pathways of metastasis, and potential to discover biomarkers and drug targets.
Autoantibodies to Ganglionic Acetylcholine Receptors in Autoimmune Autonomic Neuropathies (2000)

Seropositivity for antibodies that bind to or block ganglionic acetylcholine receptors identifies patients with various forms of autoimmune autonomic neuropathy and distinguishes these disorders from other types of dysautonomia. The positive correlation between high levels of ganglionic-receptor antibodies and the severity of autonomic dysfunction suggests that the antibodies have a pathogenic role in these types of neuropathy.
Dimere polyhalogenierter Benzocyclobutadiene (1973)

Abstract Die Dimerisation der per‐ und polyhalogenierten Benzocyclobutadiene 2 und 10 , die durch Dehalogenierung bzw. Dehydrohalogenierung aus den Vorstufen 1 und 3 bzw. 9 erzeugt werden, verläuft insofern ungewöhnlich, als sie nur „lineare”︁ Dimere ergibt. In Gegenwart von 1,3‐Diphenylisobenzofuran läßt sich 10a in dem Diels‐Alder Addukt 14 abfangen. Die Dimeren 4 und 12 lagern sich in siedendem Toluol in die entsprechenden Dibenzo[ a,e ]‐cyclooctene 6 und 13 um. Das Perchlorderivat 6a spaltet bei 400°C Chlor ab zum Dibenzopentalen 7 .
p53 and Sp1 Interact and Cooperate in the Tumor Necrosis Factor-induced Transcriptional Activation of the HIV-1 Long Terminal Repeat (1995)

Tumor necrosis factor alpha (TNF) is a potent activator of transcription directed by the human immunodeficiency virus type 1 (HIV-1) long terminal repeat (LTR). We have recently reported that the p53 tumor suppressor gene product binds to a site within the Sp1 binding region of the HIV-1 LTR and contributes to the TNF induction of this promoter. In this study we show that the transcription factor Sp1 cooperates with p53 in the transcriptional activation directed by the HIV-1 LTR. The presence of Sp1 increased p53 binding to its recognition sequence in the HIV-1 LTR, and experiments in Drosophila cells show that Sp1 is necessary for full transactivation by mutant p53. Importantly, TNF induced the association between p53 and Sp1 in Jurkat T cells. These data demonstrate a synergistic role for these proteins in the mechanism of TNF induction of HIV-1 LTR-mediated transcription and suggest that Sp1 may play an important role in modulating certain functions of p53.
A new building block to light the way to rapid ballast design (2005)

Electronic ballasts using a controller integrated circuit (IC) and two FETs are more reliable than self-oscillating bipolar transistor solutions, however, they usually have higher cost and bigger size. This paper introduces a new high voltage IC (HVIC) and low cost power factor technologies that allow developing electronic ballasts with low cost and small size
Quelques exemples récents d'utilisation de méthodes d'examen ou d'analyse des matériaux du patrimoine culturel mettant en œuvre des rayons X (2001)

Le Centre de Recherche et de Restauration des Musees de France (C2RMF) a, parmi ses missions, celle de developper et d'appliquer des techniques d'examen, de caracterisation et d'analyse des oeuvres d'art ou du patrimoine culturel, des materiaux constitutifs de ces oeuvres, afin de connaitre les mecanismes de leur elaboration, de leur evolution / degradation et d'etablir des recommandations en vue de leur restauration et de leur conservation. Pour cela, il privilegie les methodes non-destructives, sans contact, sans prelevement. Parmi ces methodes, certaines mettent en oeuvre les rayons X: radiographie X, emissiographie, radiographie par electrons secondaires, stratigraphie, diffraction X, microscopie electronique a balayage (MEB) et analyse par spectrometrie X associee, analyse par fluorescence X, analyse par faisceaux d'ions (AGLAE): PIXE et fluorescence X secondaire. On sollicite egalement des laboratoires exterieurs (tomodensitometrie, caracterisation structurale a l'aide du rayonnement synchrotron). Ces methodes, seules ou associees a d'autres methodes sont appliquees a des oeuvres tres diverses et des materiaux de toute nature, de toute origine et de tout âge. On illustrera ces techniques a propos de divers exemples recents d'objets de collections publiques francaises etudies par le Centre.
Capillary Zone Electrophoresis of Iridium(III) and Ruthenium(II) Polypyridyl Complexes in Non‐aqueous Solvents (2006)

A method of non-aqueous capillary zone electrophoresis has been optimized for the characterization of five functionalized mixed-ligand iridium(III) polypyridyl complexes and four functionalized ruthenium(II) bis-terpyridine complexes. Their mobilities, the relation to their molar mass, and the capillary lifetime (measured in number of injections) have been determined
Identity of anomalous product reported in synthesis of dimethallyl (1951)

Abstract The product, b.p. 136°, reported in the reaction between methallyl chloride and magnesium, is identified as diisocrotyl (2,5‐dimethyl‐2,4‐hexadiene) resulting from rearrangement of dimethallyl, b.p. 114°.
A model-checking approach to analysing organisational controls in a loan origination process (2006)

Demonstrating the safety of a system (ie. avoiding the undesired propagation of access rights or indirect access through some other granted resource) is one of the goals of access control research, e.g. [1-4]. However, the flexibility required from enterprise resource management (ERP) systems may require the implementation of seemingly contradictory requirements (e.g. tight access control but at the same time support for discretionary delegation of workflow tasks and rights).To aid in the analysis of safety problems in workflow-based ERP system, this paper presents a model-checking based approach for automated analysis of delegation and revocation functionalities. This is done in the context of a real-world banking workflow requiring static and dynamic separation of duty properties.We derived information about the workflow from BPEL specifications and ERP business object repositories. This was captured in a SMV specification together with a definition of possible delegation and revocation scenarios. The required separation properties were translated into a set of LTL-based constraints. In particular, we analyse the interaction between delegation and revocation activities in the context of dynamic separation of duty policies.
A compiler for cyber-physical digital microfluidic biochips (2018)

Programmable microfluidic laboratories-on-a-chip (LoCs) offer the benefits of automation and miniaturization to the life sciences. This paper presents an updated version of the BioCoder language and a fully static (offline) compiler that can target an emerging class of LoCs called Digital Microfluidic Biochips (DMFBs), which manipulate discrete droplets of liquid on a 2D electrode grid. The BioCoder language and runtime execution engine leverage advances in sensor integration to enable specification, compilation, and execution of assays (bio-chemical procedures) that feature online decision-making based on sensory data acquired during assay execution. The compiler features a novel hybrid intermediate representation (IR) that interleaves fluidic operations with computations performed on sensor data. The IR extends the traditional notions of liveness and interference to fluidic variables and operations, as needed to target the DMFB, which itself can be viewed as a spatially reconfigurable array. The code generator converts the IR into the following: (1) a set of electrode activation sequences for each basic block in the control flow graph (CFG); (2) a set of computations performed on sensor data, which dynamically determine the result of each control flow operation; and (3) a set of electrode activation sequences for each control flow transfer operation (CFG edge). The compiler is validated using a software simulator which produces animated videos of realistic bioassay execution on a DMFB.
Effects of fibroblast origin and phenotype on the proliferative potential of limbal epithelial progenitor cells (2011)

The current study investigates potential differences in fibroblast phenotype across the anterior segment of the human eye with the aim to understanding factors that support the regenerative function of human limbal epithelial progenitor cells (LEPs) during wound healing. Separate cultures of fibroblasts were established from the cornea, limbus and sclera by growth in serum-supplemented medium. The resulting cultures were examined for potential differences in morphology and growth rate, as well as expression of CD34, CD45, CD90, CD141, CD271, vimentin and α-smooth muscle actin (α-sma). Finally, cultures were examined for their ability to support the growth of LEPs. While all cultures grew at a similar rate, scleral cultures often contained larger and more irregularly shaped cells which stained positive for α-sma. Western blotting confirmed a gradient of α-sma expression with lowest levels in corneal cultures. All three cultures stained positively for CD90 and vimentin, and were negative for CD34, CD45, CD141 and CD271. Only limbal or corneal irradiated fibroblasts supported the establishment of LEP cultures. While LEP colony forming efficiency and prominent expression of ABCG2, C/EBPδ and p63 was similar with either limbal or corneal fibroblasts, limbal fibroblasts supported significantly better growth. These results indicate that scleral fibroblasts have an increased capacity for myofibroblast formation which appears to negatively impact on their ability to support LEP growth. Superior growth of LEPs in the presence of limbal fibroblasts indicates a role for limbal fibroblasts in promoting the proliferation of limbal epithelium during wound healing.
Pourquoi y a-t-il de bonnes et de mauvaises entreprises et pourquoi le restent-elles ? (2018)

info:eu-repo/semantics/published