gebhart/patrepeval huggingface dataset:
Evaluation of IGSCC Susceptibility of Austenitic Stainless Steels Using Electrochemical Reactivation Method (1980)

This study was carried out to examine a possibility of evaluating the SCC susceptibility of stainless steels in high-temperature water by EPR test (Electrochemical Potentiokinetic Reactivation method). The effect of alloying elements of carbon, nitrogen and molybdenum on the extent of sensitization was evaluated by EPR test, and the correlation between EPR test result and SCC susceptibility for the steels was examined. The EPR test was conducted in 0.01M KSCN+0.5N H2SO4 solution, and critical passivation current density (Ia), maximum reactivation current density (Ir) and reactivation ratio (Ir/Ia) were measured. The SCC susceptibility was evaluated in terms of the crack depth observed after the CBB test (Creviced bent beam test) in oxygenized high-temperature water at 250°C for 310h. The conclusions obtained were: (i) the correlation between the SCC susceptibility and Ir or Ir/Ia is not affected by the content of carbon or nitrogen. (ii) molybdenum suppresses the active dissolution of the steel and influences Ia and Ir, for while the ratio Ir/Ia is well correlated with the SCC susceptibility.
Five Percent Platinum‐Tungsten Oxide‐Based Electrocatalysts for Phosphoric Acid Fuel Cell Cathodes (1996)

A Pt‐tungsten oxide‐based electrocatalyst has been fabricated by an inexpensive chemical route for use as an oxygen cathode in 99% phosphoric acid at 180°C. The effect of % (wt/wt) on the Pt‐tungsten oxide/C‐based electrode performance was studied. The electrocatalytic properties for the oxygen reduction reaction (ORR), e.g., exchange current density and mass activity of a 5% Pt‐40% ‐based electrode were found to be twice as high as those of 10% Pt, which contains double the amount of platinum. The Tafel slope and specific activity of the two electrodes are similar. It was shown that an increase in its electrochemically active surface area was the only reason for the performance of the 5% Pt‐40% ‐based electrode. The electrocatalytic parameters of the 5% Pt‐40% ‐based electrode for the ORR were compared to those of the 2% Pt‐1% ‐based electrode.
Patient‐circumference‐adapted dose regulation in body computed tomography. a practical and flexible formula (2005)

Until fully automatic automatic exposure control systems have been introduced, applying the formula in a computer program provides the radiologist with an easy, quick, flexible, and practical instrument for reasonably good patient-sized adjusted exposure levels in clinical practice.
Multi Background Memory Testing (2008)

To coverage Pattern Sensitive Faults (PSF) the multiple run March test algorithms have been used. The key element of multiple run March test algorithms are memory backgrounds. In this paper the constructive algorithm for optimal set of memory backgrounds selection is proposed. The backgrounds selection it based on the binary vectors dissimilarity measures. The optimal solutions have been obtained for the cases of two, three and four runs memory testing. Theoretical and experimental analysis has been done which allow to prove the efficiency of proposed technique.
PRISMA - A Multidimensional Information Visualization Tool Using Multiple Coordinated Views (2007)

Information visualization techniques have been successfully used to build visual and interactive analysis of data and data relationships. However, dimensionality, volume and diversity make it difficult for a single technique to completely solve the problem. Information visualization tools that support multiple coordinated views allow the user to better understand the dataset by providing different perspectives based on the same set of data items. These tools support the correlation between data views and the coordinated real-time interaction mechanisms. The goal of this paper is to present the PRISMA information visualization tool that explores the use of multiple coordinated views. PRISMA provides usability, portability and extensibility. Initial usability essays are discussed.
El sexismo en las universidades argentinas (1997)

Americanae nace como un proyecto conjunto que surge dentro de la Red Europea de Información y Documentación sobre América Latina (REDIAL), y que ha afrontado la Biblioteca de la Agencia Española de Cooperación Internacional para el Desarrollo (AECID). Esta nueva biblioteca virtual hace más accesibles los libros digitales de tema americanista a los investigadores y usuarios interesados de cualquier parte del mundo.
Surgical Site Infection in the Elderly Following Orthopaedic Surgery (2006)

Measures for prevention of surgical site infection in elderly patients should target individuals who reside in health-care facilities prior to surgery. Future studies should be done to examine the effectiveness of such interventions in preventing infection and improving outcomes in elderly patients who undergo orthopaedic surgery.
Delegation logic (2003)

We address the problem of authorization in large-scale, open, distributed systems. Authorization decisions are needed in electronic commerce, mobile-code execution, remote resource sharing, privacy protection, and many other applications. We adopt the trust-management approach, in which "authorization" is viewed as a " proof-of-compliance " problem: Does a set of credentials prove that a request complies with a policy?We develop a logic-based language, called Delegation Logic (DL), to represent policies, credentials, and requests in distributed authorization. In this paper, we describe D1LP, the monotonic version of DL. D1LP extends the logic-programming (LP) language Datalog with expressive delegation constructs that feature delegation depth and a wide variety of complex principals (including, but not limited to, k-out-of-n thresholds). Our approach to defining and implementing D1LP is based on tractably compiling D1LP programs into ordinary logic programs (OLPs). This compilation approach enables D1LP to be implemented modularly on top of existing technologies for OLP, for example, Prolog.As a trust-management language, D1LP provides a concept of proof-of-compliance that is founded on well-understood principles of logic programming and knowledge representation. D1LP also provides a logical framework for studying delegation.
p53 oncoprotein expression in parotid gland carcinoma is associated with clinical outcome (1995)

The p53 tumor suppressor gene may be involved in salivary gland carcinogenesis, and its oncoprotein expression is an independent indicator of clinical aggressiveness in patients with carcinoma of the parotid gland.
New development of atomic layer deposition: processes, methods and applications (2019)

Atomic layer deposition (ALD) is an ultra-thin film deposition technique that has found many applications owing to its distinct abilities. They include uniform deposition of conformal films with controllable thickness, even on complex three-dimensional surfaces, and can improve the efficiency of electronic devices. This technology has attracted significant interest both for fundamental understanding how the new functional materials can be synthesized by ALD and for numerous practical applications, particularly in advanced nanopatterning for microelectronics, energy storage systems, desalinations, catalysis and medical fields. This review introduces the progress made in ALD, both for computational and experimental methodologies, and provides an outlook of this emerging technology in comparison with other film deposition methods. It discusses experimental approaches and factors that affect the deposition and presents simulation methods, such as molecular dynamics and computational fluid dynamics, which help determine and predict effective ways to optimize ALD processes, hence enabling the reduction in cost, energy waste and adverse environmental impacts. Specific examples are chosen to illustrate the progress in ALD processes and applications that showed a considerable impact on other technologies.
Microarray Approaches for Analysis of Cell Cycle Regulatory Genes (2004)

Cell cycle phase-specific regulation of transcription is a major mechanism for the regulation of progress through the eukaryotic cell cycle. Hundreds of genes are known to be cell cycle regulated, including histones, cyclins, transcription factors, and genes for such cycle-specific processes as initiation of replication and cytokinesis. Many of the transcription factors involved in cell cycle regulation have been identified (Table 1). Many of these transcription factors and their downstream effector genes also play important roles outside of normal cell cycle progression, such as in induction of cell cycle arrest or apoptosis in response to deoxyribonucleic acid (DNA) damage or other cellular stresses. Loss of control of cell cycle-regulated genes is also known to play an important role in disease states such as genomic instability and cancer. For instance, p53, a cell cycle regulatory transcription factor, is also one of the most commonly mutated tumor-suppressor genes in human cancer (1), and hence one of the most exhaustively studied. Estimates based on a survey of p53 binding sites in the genome put the number of p53 regulated genes at several hundred (2), whereas the finding that p53 can affect the expression of some genes in the absence of direct DNA binding may increase this number (3). Genes known to be regulated by p53 are not restricted to roles in cell cycle progression, but are involved in other important cellular processes, such as DNA repair and apoptosis (Table 2). As this is an example of just one transcription factor, it is obvious that cell cycle dependent transcription involves many layers of complexity.
Ventral Rectus Fascia Closure on Top of Mesh Hernia Repair in the Sublay Technique (2004)

Sublay prosthetic herniorrhaphy has become a widely accepted procedure for incisional hernias. To evaluate the effect of fascia closure on top of mesh repair on infection, and the recurrence rate, the authors reviewed their data regarding herniorrhaphy in the sublay technique. This study was a retrospective analysis of 175 consecutive patients who underwent hernia repair by implantation of prostheses by means of the Stoppa-Rives technique from December of 1994 to December of 2001. All 175 patients had the mesh implanted in the subfascial plane, 130 received a light-weight or heavy-weight polypropylene mesh (Vypro or Prolene) (74 percent), eight had a polyester mesh (Mersilene) (5 percent), and 37 had an expanded polytetrafluoroethylene patch (Gore-Tex) (21 percent). After sublay mesh positioning, the mesh could not be covered by the fascia in 50 cases; in 31 of these cases, a second mesh was placed into the fascial defect. To evaluate the influence of the fascia closing procedure on top of the sublay mesh, three groups were differentiated: initial fascia closure (n = 125), no fascia closure and concomitant mesh interposition (n = 31), and no fascia closure without mesh interposition (n = 19). After a mean follow-up of 20 months, 11 deep prosthetic infections (8 percent) and 15 hernia recurrences (9 percent) were observed. There was an increased risk of mesh infection when the fascia could not be closed, but there was no influence of fascia closure on hernia recurrence. When the fascia was left open, the placement of a second mesh inlay technique reduced mesh infection. The authors' data give evidence that closing the ventral fascia after mesh repair in the sublay position is beneficial. When the edges of the hernia defect could not be approximated, the suturing of a second mesh into the fascia defect was a useful tool for reducing the prosthetic infection rate; however, no significant influence on hernia recurrence was observed.
Regulating Immunogenicity and Tolerogenicity of Bone Marrow-Derived Dendritic Cells through Modulation of Cell Surface Glycosylation by Dexamethasone Treatment (2017)

Dendritic cellular therapies and dendritic cell vaccines show promise for the treatment of autoimmune diseases, the prolongation of graft survival in transplantation, and in educating the immune system to fight cancers. Cell surface glycosylation plays a crucial role in the cell-cell interaction, uptake of antigens, migration, and homing of DCs. Glycosylation is known to change with environment and the functional state of DCs. Tolerogenic DCs (tDCs) are commonly generated using corticosteroids including dexamethasone, however, to date, little is known on how corticosteroid treatment alters glycosylation and what functional consequences this may have. Here, we present a comprehensive profile of rat bone marrow-derived dendritic cells, examining their cell surface glycosylation profile before and after Dexa treatment as resolved by both lectin microarrays and lectin-coupled flow cytometry. We further examine the functional consequences of altering cell surface glycosylation on immunogenicity and tolerogenicity of DCs. Dexa treatment of rat DCs leads to profoundly reduced expression of markers of immunogenicity (MHC I/II, CD80, CD86) and pro-inflammatory molecules (IL-6, IL-12p40, inducible nitric oxide synthase) indicating a tolerogenic phenotype. Moreover, by comprehensive lectin microarray profiling and flow cytometry analysis, we show that sialic acid (Sia) is significantly upregulated on tDCs after Dexa treatment, and that this may play a vital role in the therapeutic attributes of these cells. Interestingly, removal of Sia by neuraminidase treatment increases the immunogenicity of immature DCs and also leads to increased expression of pro-inflammatory cytokines while tDCs are moderately protected from this increase in immunogenicity. These findings may have important implications in strategies aimed at increasing tolerogenicity where it is advantageous to reduce immune activation over prolonged periods. These findings are also relevant in therapeutic strategies aimed at increasing the immunogenicity of cells, for example, in the context of tumor specific immunotherapies.
Rapid Dephosphorylation of H1 Histones after Apoptosis Induction (2000)

H1 histones are involved in the formation of higher order chromatin structures and in the modulation of gene expression. Changes in chromatin structure are a characteristic initial feature of apoptosis. We therefore have investigated the histone H1 pattern of the human leukemic cell line HL60 undergoing programmed cell death, as induced by topoisomerase I inhibition. Histone H1 proteins were isolated and analyzed by high performance liquid chromatography and capillary zone electrophoresis. DNA fragmentation after apoptosis induction was monitored by agarose gel electrophoresis. The patterns of the three H1 histone subtypes extractable from apoptotic HL60 cells significantly differed from those of control cells in showing a decrease of phosphorylated H1 subtypes and an increase of the respective dephosphorylated forms. This dephosphorylation of H1 histones could be observed already 45 min after apoptosis induction and preceded internucleosomal DNA cleavage by approximately 2 h. We conclude that during apoptotic DNA fragmentation, the H1 histones become rapidly dephosphorylated by a yet unknown protein phosphatase.
Sister chromatid exchange in human chromosomes from normal individuals and patients with ataxia telangiectasia (1975)

A new fluorescence plus Giemsa staining technique now makes the detection of sister-chromatid exchange (SCE) a relatively easy matter in cells containing 5-BrdU-substituted DNA. The technique has been applied to human cells to examine the distribution of SCE between different people and between and within different chromosomes. The results show: (1) That there were no large differences in the incidence of SCE between blood leukocyte chromosomes from male and female adults and newborn, and that similar frequencies were found in cells from two patients with ataxia telangiectasia which, nevertheless, showed the typical increases in chromosomal aberrations. (2) The distribution of SCE between chromosomes in the complement was found to be proportional to chromosome length, although the smaller chromosomes were under-represented, but not significantly so. (3) The distribution of SCE within chromosomes was nonrandom, with a deficiency in the centromeric and an excess in the mid-arm regions. There was no evidence for an excess of SCE in chromosome regions rich in AT DNA sequences. (4) The frequency of SCE is to some extent dependent on 5-BrdU concentration, but the influence of concentration is minimal within the range of from 1 to 160 <i>µ</i>m. Human cells exposed over two cell cycles at these higher BrdU levels have around 14 SCE per cell–a frequency virtually identical with that observed in cultured cells from the Chinese hamster, wallaby, and rat kangaroo.
Preventive effects of germinated barley foodstuff on methotrexate-induced enteritis in rats. (1998)

The preventive effects of the dietary germinated barley foodstuff (GBF), which increases the contents of protein, RNA and DNA in the intestinal mucosa of rats on the mucosal damage and diarrhea were examined in a methotrexate (MTX)-induced enteritis model in rats. Sprague-Dawley rats intraperitoneally injected with MTX (10 mg/kg body weight) were used as an enteritis model. After consumption of diets containing GBF, glutamine or a glutamine-rich stuff (gluten), mucosal damage, contents of mucosal protein, RNA and DNA, myeloperoxidase (MPO) activity, bacterial translocation and DNA synthetic activity in the small intestine were assessed. GBF more effectively prevented diarrhea and mucosal damages, and increased mucosal protein, DNA and RNA contents than glutamine or gluten. The bacterial trans-location and elevation of MPO activity induced by MTX were depressed only by the consumption of GBF. GBF has a potential as therapeutic diet to decrease the adverse effects of anti-cancer chemotherapy.
Arrested Charnockite Formation in the Palghat Region, South India (1995)

Abstract Exposures of in-situ charnockitisation of gneisses in widely varying geological associations, related to differing mechanisms of dehydration and prograde metamorphism, are recorded from the Palghat region, southern India. Mineral reactions in gneiss-charnockite prograde profiles indicate hornblende + biotite breakdown in the presence of quartz to produce orthopyroxene within structurally controlled and/or compositionally modified portions of the gneisses. Chemically the gneisses and arrested charnockite zones are granitic in composition whereas the associated banded charnockites (regional granulites) are tonalitic to granodioritic in composition, Geothermobarometric data indicate high temperature and high pressure early granulite-facies (regional granulite) metamorphism at 780 - 880°C and 9-10 Kbar. The fluid species in both types of charnockites and gneisses are characterised by CO, and mixed CO2-H2O inclusions. The banded charnockites largely pre-date major deformation and the early Palaeozoic time of development of arrested charnockites. A definite time gap between the formation of banded charnockites and arrested charnockites is indicated. Arrested charnockites in the Palghat region are formed along (1) structurally controlled zones, (2) in compositionally favourable zones of modified paleosomes, (3) in melt portions of migrnatitic gneisses and (4) along margins of invading alkaline dykes. These are interpreted as different processes triggered by emplacement of igneous bodies and movement of CO2, enriched melts through the crust, producing sequential interrelated events like dehydration, partial melting, metasomatism and wall-rock alteration, leading ultimately to charnockite formation. The present field dispositions of arrested charnockite are inferred as only an expression of varying response of rock types to changing physico-chemical conditions (e.g. PT and fluid regime) with time during metamorphism.
An agile ISM band frequency synthesizer with built-in GMSK data modulation (1998)

In this paper, a high-resolution fractional-N RF frequency synthesizer is presented which is controlled by a fourth-order digital sigma-delta modulator. The high resolution allows the synthesizer to be digitally modulated directly at RF. A simplified digital filter which makes use of sigma-delta quantized tap coefficients is included which provides built-in GMSK pulse shaping for data transmission. Quantization of the tap coefficients to single-bit values not only simplifies the filter architecture, but the fourth-order digital sigma-delta modulator as well. The synthesizer makes extensive use of custom VLSI, with only a simple off-chip loop filter and VCO required. The synthesizer operates from a single 3-V supply, and has low power consumption. Phase noise levels are less than -90 dBc/Hz at frequency offsets within the loop bandwidth. Spurious components are less than -90 dBc/Hz over a 19.6-MHz tuning range.
Structural Optimization and Design of a Strut-Braced Wing Aircraft (1998)

A significant improvement can be achieved in the performance of transonic transport aircraft using Multidisciplinary Design Optimization (MDO) by implementing truss-braced wing concepts in combination with other advanced technologies and novel design innovations. A considerable reduction in drag can be obtained by using a high aspect ratio wing with thin airfoil sections and tip-mounted engines. However, such wing structures could suffer from a significant weight penalty. Thus, the use of an external strut or a truss bracing is promising for weight reduction. Due to the unconventional nature of the proposed concept, commonly available wing weight equations for transport aircraft will not be sufficiently accurate. Hence, a bending material weight calculation procedure was developed to take into account the influence of the strut upon the wing weight, and this was coupled to the Flight Optimization System (FLOPS) for total wing weight estimation. The wing bending material weight for single-strut configurations is estimated by modeling the wing structure as an idealized double-plate model using a piecewise linear load method. Two maneuver load conditions 2.5g and -1.0g factor of safety of 1.5 and a 2.0g taxi bump are considered as the critical load conditions to determine the wing bending material weight. From preliminary analyses, the buckling of the strut under the -1.0g load condition proved to be the critical structural challenge. To address this issue, an innovative design strategy introduces a telescoping sleeve mechanism to allow the strut to be inactive during negative g maneuvers and active during positive g maneuvers. Also, more wing weight reduction is obtained by optimizing the strut force, a strut offset length, and the wing-strut junction location. The best configuration shows a 9.2% savings in takeoff gross weight, an 18.2% savings in wing weight and a 15.4% savings in fuel weight compared to a cantilever wing counterpart.
SNMP MIB Extension for X.25 LAPB (1992)

SNMP MIB Extension for X.25 LAPB