gebhart/patrepeval huggingface dataset:
Acoustic radiation modelling of aeroengine intake comparison between analytical and numerical methods (2001)

Significant reduction of engine noise by nacelle acoustic treatment requires accurate numerical modelling of engine nacelle ducts. The present study consists in the validation of gradually complex and realistic approaches, able to account for scattering and flow effects. First, the analytical method, based on the modal theory and the Wiener-Hopf's technique, is considered here as a reference for the comparisons. A 3D variational integral approach is presented in the second part. Several comparisons and parametric studies show good agreements in canonical case at low frequencies, in the presence of uniform flow or acoustic liners. The main observable differences caused by the inlet lip thickness are highlighted and analysed. Finally, both analytical and integral approaches seem to be consistent and allow us to develop more complicated methods like FEM or Ray-tracing to improve the predictions.
Crystallization Kinetics and Properties of Na, K-Phillipsites (1977)

Crystallization kinetics are reported for synthetic sodium, potassium phillipsites, Pure phillipsite was synthesized in the temperature range of 25-175°C under autogenous pressure and with K/(Na+K) ratios in the starting batch composition of 0.05 to 0.35. Reaction rate expressions developed for nucleation and crystallization were determined to be second order in hydroxide concentration. The kinetic diameter of the synthesized phillipsites was determined to be 2.60 to 2.65Å.
Projective Space Codes for the Injection Metric (2009)

In the context of error control in random linear network coding, it is useful to construct codes that comprise well-separated collections of subspaces of a vector space over a finite field. In this paper, the metric used is the so-called "injection distance", introduced by Silva and Kschischang. A Gilbert-Varshamov bound for such codes is derived. Using the code-construction framework of Etzion and Silberstein, new non-constant-dimension codes are constructed; these codes contain more codewords than comparable codes designed for the subspace metric.
The effect of conductor line to meander line antenna design (2008)

In this paper, the meander line antenna (MLA) have been designed to operate at 2.4-GHz for WLAN application. Two different designs of meander line antenna are investigated, without conductor line and with conductor line. Microwave Office software is used for simulation designed process. The antenna is fabricated on a double-sided FR-4 printed circuit board using an etching technique. Then the design has been tested with the Advantest Network Analyzer. The comparison between simulation and measurement results for the return loss and radiation patterns were presented. A bandwidth of 152 MHz and return loss of −37.7 dB were obtained at frequency 2.4 GHz. The gain is comparable to microstrip yagi antenna.
Effects of experimentally-induced diabetes on oestradiol-stimulated changes in the ultrastructure of the rat endometrium (1985)

Abstract. Alterations in endometrial cell morphology following oestradiol treatment of ovariectomized animals were examined in euglycaemic and streptozotocin-induced diabetic rats. Endometrial morphology was examined 18, 24, 36 and 48 h after oestradiol administration. Nuclei of endometrial cells from saline injected euglycaemic and diabetic rats exhibited pleomorphic nuclei with areas of heterochromatin dispersed throughout the nucleus. Nucleoli were homogenous in appearance and endometrial cells showed no mitotic chromosome function or cell division. The cytoplasm of euglycaemic and diabetic cells contained few mitochondria. The mitochondria that were present contained a uniformly dense matrix and cristae that extended across the mitochondria. The formation of round to oval shaped nuclei with diffuse euchromatin was observed at 18, 24 and 36 h following oestradiol administration in euglycaemic animals. Alterations in nuclear morphology and the formation of euchromatin were absent or reduced at the same time intervals examined in diabetic animals. Nucleoli in oestradiol-treated euglycaemic animals at 18, 24 and 36 h post-injections became very prominent and displayed easily visible granules and fibrillar material. Comparable changes in nucleolar morphology in oestradiol-treated diabetic rats were absent. The development of oval to round mitochondria containing short cristae and an electron-lucent matrix became apparent at 18 h post-injection of oestradiol in euglycaemic control animals. Alterations in mitochondrial morphology did not appear in endometrial cells of oestradioltreated diabetic animals at any of the time points examined. At 24 and 36 h post-injection of oestradiol in euglycaemic animals, mitotic figures were observed in mitochondrial cells. Cell division and mitotic figures were not observed in oestradiol-treated diabetic animals. This study demonstrates that a diabetic state in experimental animals profoundly alters the ability of oestradiol to stimulate normal endometrial cell growth.
Corneal wound integrity and architecture after phacoemulsification: Comparative analysis of corneal wounds created by silicon and steel blades (2009)

Journal of Cataract & Refractive Surgery 35(7):p 1313-1314, July 2009. | DOI: 10.1016/j.jcrs.2009.05.004
Cystic fibrosis bone disease: is the CFTR corrector C18 an option for therapy? (2014)

Mutations in the gene encoding the chloride ion channel CFTR (cystic fibrosis transmembrane conductance regulator) result in cystic fibrosis (CF), the most common lethal autosomal recessive genetic disease, which causes a number of long-term health problems, such as bone disease. Osteoporosis and increased vertebral fracture risk associated with CF disease are becoming more important as the life expectancy of patients continues to improve. The aetiology of low bone density is multifactorial, and is most probably a combination of inadequate peak bone mass during puberty and increased bone loss in adults [1]. Body mass index, male sex, advanced pulmonary disease, malnutrition and chronic therapies are established additional risk factors for CF-related bone disease. In multiple studies with a large cohort of adolescent and adult CF patients, the incidence of osteopenia and osteoporosis ranges from 34% to 79% [1, 2]. This further translated to a 100-fold greater risk of vertebral compression, which can decrease lung function, thus accelerating the course of the disease and decreasing the patient's quality of life. CFTR corrector–potentiators may be new therapies for CF bone disease <http://ow.ly/DSgyi> The authors thank all children who participated in this study. We also acknowledge the provision of CFTR corrector VRT-534/C18 by Vertex Pharmaceuticals (Boston, MA, USA).
Atherogenesis, coronary heart disease and insulin resistance syndrome in diabetes (2015)

The incidence of diabetes is rising worldwide, developing to epidemic proportions. Subjects with diabetes have increased risk of coronary heart disease characterized by accelerated atherosclerosis which is more diffuse, with a greater tendency for plaque rupture and thrombus formation, and is developing at a younger age compared to nondiabetics. Accelerated atherosclerosis progressing to cardiovascular disease (CVD) in diabetes is likely a multifactorial process. In this chapter we discuss the complex interactions linking hyperglycemia, lipoprotein abnormalities, impaired insulin signaling, and insulin resistance with atherosclerotic CVD in diabetes. Inflammatory state of the vasculature is a key mechanism integrating these pathophysiologic pathways, promoting macrovascular complications in diabetes. Adiposity, which is characterized by a state of chronic, low-grade, metabolic inflammation, further contributes to insulin resistance and metabolic syndrome, which may lead to diabetes and CVD.
Hardware-In-The-Loop test bench for fuel cell power system (2015)

In this paper, a Hardware-In-The-Loop (HIL) test bench is presented which can be used to test the controllers of fuel cell and DC/DC. This test bench consists of the fuel cell simulator which is implemented in the PC and the DC/DC simulator which is implemented in the Field-Programmable Gate Array (FPGA). In order to ensure the accuracy, the simulation step of DC/DC simulator should be microsecond, but PC-based simulator can't be implemented in such a small simulation step. So a real-time simulation method based on FPGA architecture is presented that every element's model is built and then assembled them together. The single-step simulation time of the DC/DC model is up to 0.1 μs because all modules operate in parallel and the simulation algorithm is very simple. The fuel cell and DC/DC simulator are connected by AD/DA converters. Experimental results show that this HIL test bench can provide a convenient and real-time tool to test the controllers of fuel cell and DC/DC.
Histamine Antagonists. γ,γ-Disubstituted N,N-Dialkylpropylamines<sup>1</sup> (1951)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHistamine Antagonists. γ,γ-Disubstituted N,N-Dialkylpropylamines1Nathan Sperber, Domenick Papa, Erwin Schwenk, Margaret Sherlock, and Rosemarie FricanoCite this: J. Am. Chem. Soc. 1951, 73, 12, 5752–5759Publication Date (Print):December 1, 1951Publication History Published online1 May 2002Published inissue 1 December 1951https://pubs.acs.org/doi/10.1021/ja01156a078https://doi.org/10.1021/ja01156a078research-articleACS PublicationsRequest reuse permissionsArticle Views588Altmetric-Citations31LEARN 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
Predicting item difficulty of science national curriculum tests: the case of key stage 2 assessments (2016)

ABSTRACT Predicting item difficulty is highly important in education for both teachers and item writers. Despite identifying a large number of explanatory variables, predicting item difficulty remains a challenge in educational assessment with empirical attempts rarely exceeding 25% of variance explained. This paper analyses 216 science items of key stage 2 tests which are national sampling assessments administered to 11 year olds in England. Potential predictors (topic, subtopic, concept, question type, nature of stimulus, depth of knowledge and linguistic variables) were considered in the analysis. Coding frameworks employed in similar studies were adapted and employed by two coders to independently rate items. Linguistic demands were gauged using a computational linguistic facility. The stepwise regression models predicted 23% of the variance with extended constructed questions and photos being the main predictors of item difficulty. While a substantial part of unexplained variance could be attributed to the unpredictable interaction of variables, we argue that progress in this area requires improvement in the theories and the methods employed. Future research needs to be centred on improving coding frameworks as well as developing systematic training protocols for coders. These technical advances would pave the way to improved task design and reduced development costs of assessments.
Two-photon holographic optogenetics of neural circuits(Conference Presentation) (2016)

Optical manipulation of in vivo neural circuits with cellular resolution could be important for understanding cortical function. Despite recent progress, simultaneous optogenetic activation with cellular precision has either been limited to 2D planes, or a very small numbers of neurons over a limited volume. Here we demonstrate a novel paradigm for simultaneous 3D activation using a low repetition rate pulse-amplified fiber laser system and a spatial light modulator (SLM) to project 3D holographic excitation patterns on the cortex of mice in vivo for targeted volumetric 3D photoactivation. This method is compatible with two-photon imaging, and enables the simultaneous activation of multiple cells in 3D, using red-shifted opsins, such as C1V1 or ReaChR, while simultaneously imaging GFP-based sensors such as GCaMP6. This all-optical imaging and 3D manipulation approach achieves simultaneous reading and writing of cortical activity, and should be a powerful tool for the study of neuronal circuits.
Advanced manipulation for autonomous mobile robots (1986)

This paper describes the development, mechanical configuration, and control system architecture of a lightweight, high performance, seven-degree-of-freedom manipulator at the Center for Engineering Systems Advanced Research (CESAR). Current activities focusing on modeling and parameter identification will provide a well-characterized manipulator for analytical and experimental research in manipulator dynamics and controls, coordinated manipulation, and autonomous mobile robotics.
SHEET CROSSING AND WAVE BREAKING IN THE LASER WAKEFIELD ACCELERATOR (2007)

The seminal work of J. M. Dawson on sheet crossing and wave breaking is extended to laser wakefield scenarios. We derive a quantitative estimate for the sheet crossing time. We find that the time for the onset of sheet crossing is reduced for lower densities, higher laser intensities and smaller spot sizes. Furthermore, we show that a preformed parabolic plasma channel can decrease the time required for sheet crossing.
HOW MUCH CHANGE IN THE SAGITTAL TILT CAN SIGNIFICANTLY AFFECT THE TOTAL HIP ARTHROPLASTY INSTABILITY (2021)

Introduction Sagittal pelvic tilt (SPT) can change with spinal pathologies and fusion. Change in the SPT can result in impingement and hip instability. Our aim was to determine the magnitude of the...
Modelling of temperature and stress profiles in oxygen sensors upon immersion into steel baths (2003)

AbstractAbstractUsing a previously established non-stationary thermal model it is possible to calculate the distribution of temperature and thermal stresses in emf sensors based on stabilised ZrO2 which are frequently applied for the measurement of oxygen activity in steel melts. The model may provide a basis for optimised construction of these sensors. The preheating behaviour is in the first step characterised for the sensor itself and in the second step for the complete one-reading measuring device.
IL-2 rapidly induces natural killer cell adhesion to human endothelial cells. A potential mechanism for endothelial injury. (1988)

NK cells promptly disappear from the circulation of patients treated with high dose i.v. rIL-2. To further study this process, we evaluated the effects of IL-2 (1000 U/ml) on normal donor PBMC incubated for 1 h on cultured human saphenous vein endothelial cells (EC). Although the NK activity of non-adherent PBMC recovered from flasks coated only with fibronectin increased in the presence of supplemental IL-2, the activity of cells recovered from flasks coated with EC decreased when IL-2 was added to the medium. The percentage of NK (CD16+) cells among the EC-non-adherent PBMC was reduced relative to that of the input cells when IL-2 was added. The percentage of CD16+ cells in the EC-adherent PBMC, as well as their NK activity, increased in the presence of added IL-2. Although EC had no effect on the lysis of labeled K-562 cells by unstimulated PBMC in cold target competition experiments, they were able to compete in cytolytic assays using PBMC previously activated by exposure to IL-2 for 1 h. EC were not lysed by these briefly activated PBMC in 3-h cytotoxicity assays but were lysed by these effectors in 18-h assays and in 3-h assays using PBMC pre-activated by more prolonged culture with IL-2. The ability of IL-2 to induce NK cell adhesion to EC was not blocked by a mixture of neutralizing antisera raised against rTNF-alpha, rIL-1 alpha, and rIL-1 beta, factors known to promote leukocyte adhesion to EC. We conclude that IL-2 rapidly induces NK cell adhesion to EC and propose that this effect accounts for the disappearance of circulating NK cells after the infusion of high doses of IL-2. In addition, these results suggest that NK cells activated by IL-2 in vivo may injure the endothelium and contribute to the extravasation of plasma and the retention of fluid characteristic of IL-2 treatment.
Genetic Analysis of a Pleiotropic Mutant of Klebsiella pneumoniae Affected in Nitrogen Metabolism (1980)

Genetic and reversion analyses of a thermosensitive pleiotropic mutant strain of Klebsiella pneumoniae with defects in nitrogen fixation and nitrogen metabolism have shown that the pleiotropie behaviour of mutant is due to a single mutation in a gene designated nim. This gene is contransducible with trp at a frequency of about 30% (using bacteriophage P1) and with cys at a frequency of about 14%. The gene order is cys, trp, nim. The defect in the nim mutant is complemented by the E. coli F' element, F'148.
SEPTIC ARTHRITIS OF THE HIP IN INFANCY (1993)

A retrospective study was undertaken of 24 infants with septic arthritis of one or both hips who presented to the Children's Hospital, Camperdown, during the 15 year period from 1973 to 1989. Staphylococcus aureus was found to be the most common pathogen. Umbilical catheterization was a significant aetiological factor in seven of 10 neonates studied. Young premature infants had the poorest outcome in regard to permanent bony changes in the upper femur, hip instability and leg length discrepancy. In patients with unstable and severely damaged upper femora, late salvage procedures were found to be unsatisfactory.
Inorganic Write-Once Disc with Quadruple Recording Layers for the Blu-ray Disc System (2003)

The Optical disc with the large capacity and higher speed data recording rate is required in the digital network society. We have developed an inorganic write-once disc with quadruple recording layers for the Blu-ray disc system. We have achieved the reflectivity of more than 5 % and the jitter value of less than 10 % for each recording layer.
[Effect of hypoallergenic wheat (HAW-A1) on atopic dermatitis (AD) with wheat allergy, and its antigenic analysis using sera from patients with AD]. (1994)

Wheat allergy has been suggested to be played an important role in the development and exacerbation of the severe type of atopic dermatitis (AD) in some cases. In this paper, we fractionated wheat antigenic proteins to salt-soluble and salt-insoluble fractions and assayed the IgE antibody titers against each fraction using AD patients' sera, indicating that the salt-soluble fraction has potential of major allergenicity. Then we prepared a hypoallergenic wheat flour (HAW-A1) by decomposition of the salt-soluble fraction using the salt solution washing procedure, and examined the hypoallergenicity of HAW-A1 in IgE-ELISA and IgE-immunoblotting with wheat-RAST positive AD's sera. The results were confirmed that most components of the salt-soluble proteins containing allergenic protein bands are decomposed from HAW-A1, and no IgE antibody titer could be detected in AD patients' sera. The next, the clinical usefulness of this hypoallergenic wheat (HAW-A1) was evaluated in 18 subjects with recalcitrant AD, who were suspected of having wheat allergy. In 15 of the 18 AD subjects tested, HAWN is very useful as a substitute of wheat foods, and in 11 of these patients has higher titers of IgE antibodies against the salt-soluble than salt-insoluble fractions which were extracted from regular wheat flour, and in 4 of these patients also have undetectable levels of IgE antibodies against either fraction. On the other hand, in 3 of 18 AD subjects who revealed positive reaction to HAWN ingestion as same as to regular wheat ingestion, and IgE antibodies to salt-insoluble proteins remaining in HAW-A1, were found. These results indicate that HAW-A1 is very useful as a substitute for wheat food, least in AD patients with wheat allergy who have high titers of IgE antibodies against the salt-soluble than salt-insoluble fractions, and who also have undetectable levels of IgE antibodies against the both fractions.
Legal Aspects of Doing Business in the Czech and Slovak Republics (1993)

Profile - physical and human geography, political background, current developments business climate - the economy, development of a free market investment climate - the impetus from the government of the CSFR, tax incentives, foreign exchange control, investment protection treaties, Western assistance available to the foreign investor legal framework - legislative process, civil law system, the commercial code, judicial process general principles of commerical law and forms of doing business - general matters covered by the commercial code the forms of business - joint stock companies, limited liability companies, vos/ks, co-operatives, other legal entities, other forms of repesentation, bankruptcy procedures exchanges and securities - the establishment of a stock exchange, structure, application for a listing, trading and settlement sanctions, the stock exchanges of Prague and Bratislava, bonds, the proposed securities law, off-exchange trading, grey market trading banking and finance - the banking system, equipment leasing privatization - voucher or coupon scheme competition law - the Competition Act, competition agencies, mergers, monopolistic and dominant positions, the role of ministries and local government, cartels, enforcement, future developments taxation - coroprate income tax, payments of dividends, interest, royalties and rent, payroll tax and social security, turnover tax and VAT, income tax, other taxes, double tax treaties real estate - protection of private property rights, privatization, the acquisition and disposal of real estate, leases of commercial premises, transfer procedures, duties and taxes, security employment issues - the structure of labour regulation in the CSFR, legal structure of the employment relationship, constituting the employment relationship, formalities, labour law an organziational flexibility, termination of employment, alien employees, collective bargaining importing and exporting to the Czech and Slovak Republics - licensing, import tax and surcharge, customs duties, customs-free zones, export credit environmental issues - Environment Act, Waste Disposal Act, Air Pollution Act, water protection, other sources of law, practical points for the foreign investor intellectual property law - copyright, trademarks, patents, industrial designs, rationalization proposals, trade secrets, licensing requirements under the commercial code broadcasting and telecommunications contractual rights and dispute resolution - enforcement of commercial rights, collection of debts, arbitration.
Veränderungen in der Anwendung und beim Outcome von Chemotherapie beim frühen Mammakarzinom in der letzten Dekade (2003 – 2014) (2017)

Während der letzten Dekade entwickelte sich die neoadjuvante Anwendung von Chemotherapie (NACT) zur gleichwertigen Alternative gegenüber der adjuvanten Anwendung (ACT) bei frühem Mammakarzinom. Es zeigte sich zudem, dass vor allem das Erreichen einer pathologischen Komplettremission (pCR) mit einem signifikanten Prognose-Vorteil für bestimmte Tumorsubtypen verbunden ist. Ziel der vorliegenden Studie war es, diese Veränderungen in der Anwendung und beim Outcome von Chemotherapie bei der Behandlung von frühem Mammakarzinom aufzuzeigen.