gebhart/patrepeval huggingface dataset:
INFLUENCE OF IRRADIANCE ON CELL VOLUME AND CARBON QUOTA FOR TEN SPECIES OF MARINE PHYTOPLANKTON<sup>1</sup> (1991)

ABSTRACT Ten species of marine phytoplankton were grown under a range of photosynthetic photon flux densities (PFDs) and examined for variation in cell volume and carbon quota. Results suggest that in response to low PFDs phytoplankton generally reduce their cell volume and frequently reduce their carbon quota. A significant linear relationship between the log of PFD (I) and cell volume (in nine of ten species) and log I and carbon quota (four of ten species) was demonstrated. When exposed, to a transient in light intensity, Thalassiosira pseudonana (Hustedt, clone 3H) Hasle and Heimdal underwent a rapid adaptation in cell volume and carbon quota. Cells going from low light to high light reached maximum mean cell volume within 5 h, and cells going from high light to low light reached a minimum mean cell volume within 12 h. The resulting kinetic constant (k; a measure of the rate of adaptation) was considerably larger than previously reported k values. Ditylum brightwellii (West) Grunow increased in length but did not increase in width during a transient to increased irradiance. Nutrient limitation was shown to override PFD in determining cell volume and carbon quota for Heterosigma akashiwo Hada. Cells grown at equivalent irradiances but N‐limited, were smaller than light‐limited and nutrient‐saturated cells. Therefore, cell volume and carbon quota do not have the same relationship with PFD when factors other than PFD control growth rate. The ecological implications of reduced cell volumes and carbon quotas with decreasing PFD include possible impacts on CO 2 budgets, an influence on sinking rates, potential changes in predation rates, and surface area/cell volume benefits.
12-cm Magneto-Electrostatic Containment Mercury Ion Thruster Development (1972)

Covers advancements in spacecraft and tactical and strategic missile systems, including subsystem design and application, mission design and analysis, materials and structures, developments in space sciences, space processing and manufacturing, space operations, and applications of space technologies to other fields.
Dealumination of zeolites and clay minerals with SiCl<sub>4</sub> or (NH<sub>4</sub>)<sub>2</sub>SiF<sub>6</sub> (1987)

An abstract is not available for this content so a preview has been provided. Please use the Get access link above for information on how to access this content.
Regeneration of Tomato (Lycopersicon esculentum Mill.): Somatic Embryogenesis and Shoot Organogenesis from Hypocotyl Explaints Induced with 6-Benzyladenine (1996)

In vitro regeneration of plants was achieved in four cultivars of tomato (Lycopersicon esculentum Mill.). The explants were 10-mm hypocotyl sections, excised from 2-wk-old seedlings grown on Murashige and Skoog (MS) medium supplemented with or without 6-benzyladenine (BA). The hypocotyl explants were subcultured on MS medium without growth regulators or on MS media supplemented with 5, 10, 20, or 40 μM BA. Regeneration through somatic embryogenesis and shoot organogenesis occurred in explants of all treatments, even on hypocotyls from seedlings grown on basal medium and subcultured to medium without growth regulators. Explants from seedlings grown on BA-supplemented medium produced the highest frequency of regenerants when subcultured to media containing BA. In contrast, BA had an inhibitory effect on explants obtained from seedlings grown on media lacking BA. Light microscopic observations confirmed that regeneration occurred via both somatic embryogenesis and shoot organogenesis from the subepidermal cortical tissue. Developing somatic embryos were encased in a distinct protoderm, had a suspensor-like structure, and were loosely attached to the hypocotyl tissue. Somatic embryos and shoots developed into complete plants on a medium lacking growth regulators.
IBM business transformation enabled by service-oriented architecture (2007)

This paper discusses the use of service-oriented architecture (SOA) as one of the key elements supporting business transformation at IBM. It describes the internal SOA strategy, SOA governance, organizational impacts, and several IBM internal SOA case studies. The top-down and bottom-up approaches to promoting SOA within the enterprise are also illustrated, along with a set of SOA business and information technology lessons learned.
Polymerizable built up multilayers on polymer supports (1984)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolymerizable built up multilayers on polymer supportsO. Albrecht, A. Laschewsky, and Helmut RingsdorfCite this: Macromolecules 1984, 17, 4, 937–940Publication Date (Print):April 1, 1984Publication History Published online1 May 2002Published inissue 1 April 1984https://pubs.acs.org/doi/10.1021/ma00134a067https://doi.org/10.1021/ma00134a067research-articleACS PublicationsRequest reuse permissionsArticle Views94Altmetric-Citations36LEARN 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
Genetic Variation of HIV Type 1 in Four World Health Organization-Sponsored Vaccine Evaluation Sites: Generation of Functional Envelope (Glycoprotein 160) Clones Representative of Sequence Subtypes A, B, C, and E (1994)

As part of the WHO Network for HIV Isolation and Characterization, we PCR amplified, cloned, and sequenced gp120 and gp160 genes from 12 HIV-1 isolates collected in four WHO-sponsored vaccine evaluation sites (Brazil, Rwanda, Thailand, Uganda). Envelope clones were derived from PBMC-grown isolates obtained from asymptomatic individuals within 2 years of seroconversion. Analysis of their deduced amino acid sequences identified all but one to contain an uninterrupted open reading frame. Transient expression and biological characterization of selected gp160 constructs identified six clones to encode full length and functional envelope glycoproteins. Phylogenetic analysis of their nucleotide sequences revealed that they represent HIV-1 subtypes A, B, C, and E. Since current knowledge of HIV-1 envelope immunobiology is almost exclusively derived from subtype B viruses, these reagents should facilitate future envelope structure, function and antigenicity studies on a broader spectrum of viruses. This should assist in the design and evaluation of effective vaccines against HIV-1.
Evaluation of lossless compression techniques for high-resolution RGB and CMYK color images (1999)

The <i>Journal of Electronic Imaging</i> (JEI), copublished bimonthly with the Society for Imaging Science and Technology, publishes peer-reviewed papers that cover research and applications in all areas of electronic imaging science and technology.
NFQL: the natural forms query language (1989)

A means by which ordinary forms can be exploited to provide a basis for nonprocedural specification of information processing is discussed. The Natural Forms Query Language (NFQL) is defined. In NFQL data retrieval requests and computation specifications are formulated by sketching ordinary forms to show what data are desired and update operations are specified by altering data on filled-in forms. The meaning of a form depends on a store of knowledge that includes extended abstract data types for defining elementary data items, a database scheme defined by an entity-relationship model, and a conceptual model of an ordinary form. Based on this store of knowledge, several issues are addressed and resolved in the context of NFQL. These issues include automatic generation of query expressions from weak specifications, the view update problem, power and completeness, and a heuristic approach to resolving computational relationships. A brief status report of an implementation of NFQL is also given.
Curved optics for x-ray phase contrast imaging by synchrotron radiation. (2001)

Conventional radiographic techniques have strong limitations when low-absorption contrast samples are imaged. Phase contrast radiography has been shown to produce high-quality images of soft tissues. In this technique the recorded intensity patterns are related to gradients in the refractive index of the sample. A critical point of this new technique is the need to employ crystal analysers, which results in an appreciable reduction in the beam intensity and consequently in rather long exposure times. In this paper the use of focused beams is suggested to overcome this aspect. Biological samples with small structures and low absorption variations were imaged using both flat and curved monochromator crystals, demonstrating that the use of curved optics leads to a decrease in the exposure time with only a limited degradation of the spatial resolution. This opens up the possibility of using the phase contrast technique with laboratory sources.
Strip buried heterostructure lasers with passive distributed Bragg reflectors (1979)

A GaAs-Al <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">x</inf> Ga <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1-x</inf> As strip buried heterostructure laser with distributed feedback Bragg reflectors is described. In this structure, the active strip is present in the form of an isolated segment completely buried in wide band gap Al <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">x</inf> Ga <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1-x</inf> As. The diode is shown to operate stably in single transverse (fundamental) and longitudinal modes when the Fabry-Perot modes are suppressed by saw cutting the mirrors.
Changes in the derived central pressure waveform and pulse pressure in response to angiotensin II and noradrenaline in man (2001)

Peripheral pulse pressure provides a surrogate measure of arterial stiffness. Analysis of the central pressure waveform allows assessment of central pulse pressure and arterial stiffness. The aim of the present study was to assess the effect of vasoconstrictor drugs on pulse pressure amplification and arterial stiffness in vivo. Eight healthy male subjects (mean age 30 years) received an infusion of angiotensin II (1, 3, 6 and 10 ng kg(-1) min(-1)), noradrenaline (10, 30, 60 and 100 ng kg(-1) min(-1)) and matching placebo, in random order, on separate occasions. Peripheral blood pressure and cardiac index were recorded non-invasively. Pulse wave analysis was used to determine augmentation index (AIx), which provides a measure of systemic arterial stiffness, aortic stiffness and central arterial pressure. Infusion of both active drugs resulted in a significant increase in peripheral mean arterial pressure (PMAP), peripheral vascular resistance, AIx, aortic stiffness and central pulse pressure, but only angiotensin II reduced cardiac index. Peripheral pulse pressure was unaffected by infusion of angiotensin II but increased with noradrenaline, which also produced a greater reduction in pulse pressure amplification than angiotensin II. However, the linear relationship of PMAP with both AIx and aortic stiffness did not differ significantly between drugs. These results demonstrate that intravenous infusion of angiotensin II and noradrenaline increase aortic and systemic arterial stiffness. Despite a similar effect on both parameters, for a given change in PMAP, the two drugs had divergent effects on peripheral pulse pressure and pulse pressure amplification. These data reveal that assessment of peripheral pulse pressure does not always reliably predict changes in central pulse pressure or arterial stiffness.
A three-hour test for rapid comparison of effects of moisturizers and active constituents (urea). Measurement of hydration, scaling and skin surface lipidization by noninvasive techniques. (1992)

An in vivo skin test for rapid comparison of the efficacy of moisturizers is introduced. Test substances were applied to flexor side forearm skin, and measurements by non-invasive techniques were performed after 3 h. As indicators of epidermal hydration, the electrical conductance and capacitance were measured. To quantify the effects on scale pattern, D-Squame tapes were scored and the optical transmission measured. Moreover, skin surface lipids resulting from lotion lipids were measured. Lotions and different concentrations of urea could be ranked in a consistent way, viz. untreated skin < vehicle < 3% urea lotion < 10% urea lotion. Urea was concluded to be very potent as a skin humidifier and as a descaling agent, particularly in 10% concentration. Humidity characteristics correlated much better with the concentration of urea than with lipidization of the skin surface due to lotion lipids. A 3-hour test period was sufficient for the evaluation of the effects of moisturizers on both epidermal hydration and scale pattern. With a rapid test method, sources of variation such as diurnal and day-to-day variations, dosage and non-compliance are easily controlled. Further, by using non-invasive methods, the assessment has been rendered objective.
The Anticholinesterase Phenserine and Its Enantiomer Posiphen as 5<sup>′</sup>Untranslated-Region-Directed Translation Blockers of the Parkinson’s Alpha Synuclein Expression (2012)

There is compelling support for limiting expression of alpha-synuclein (α-syn) in the brains of Parkinson's disease (PD) patients. An increase of SNCA gene copy number can genetically cause familial PD where increased dose of this pathogenic protein correlates with severity of symptoms (triplication of the SNCA gene causes dementia in PD patients). Gene promoter polymorphisms were shown to increase α-synuclein expression as a risk for PD. Cholinesterase inhibitors can clinically slow cognitive decline in the later stages of PD etiology similar to their widespread use in Alzheimer's disease (AD). Pertinent to this, we identified that the well-tolerated anticholinesterase, phenserine, blocked neural SNCA mRNA translation and tested for targeting via its 5'untranslated region (5'UTR) in a manner similar to its action to limit the expression of the AD-specific amyloid precursor protein (APP). Posiphen, its better-tolerated (+) enantiomer (devoid of anticholinesterase action), repressed neural α-synuclein translation. Primary metabolic analogs of posiphen were, likewise, characterized using primary fetal neurons grown ex vivo from the brains of Parkinson's transgenic mice expressing the human SNCA gene.
Self-Powered Wireless Sensor System using MEMS Piezoelectric Micro Power Generator (2006)

A thin-film lead zirconate titanate Pb(Zr,Ti)O <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> , MEMS piezoelectric micro power generator (PMPG) has been integrated with a commercial wireless sensor node (Telos) to enable a self-powered RF temperature sensor module. The PMPG and a power management module are designed to satisfy the sensor node's power requirement. An electromechanical model of PMPG has been developed to simulate the system and to maximize the power output. The second generation PMPG is designed to provide 0.173 mW power at 3 V DC with with 1 g excitation at 155.5 Hz. The power management module is developed to provide AC-DC rectification, energy storage, and active switching between the PMPG and the application circuit. To optimize the power requirement, sensor data is taken at a discontinuous interval. A test bed is developed for testing autonomous sensors with a simulated condition of an Alaskan natural gas pipeline. Scaling factors, cost and robustness are considered in the test bed design.
Vertical Silicon membranes for super-Schottky diodes (1983)

We have fabricated vertical silicon membranes in
Operations Management: Concepts in Manufacturing and Services (1995)

Section 1 Introduction to operations management: preview of operations management manufacturing operations service operations Section 2 Operations strategy: operations strategy. Section 3 Strategic decision categories in operations management: forecasting demand for goods and services product planning and process design long-range capacity planning and facility location managing quality technological developments in operations management organization and human resources. Section 4 Operation planning and control: global supply chain management aggregate production planning independent demand inventory management dependent demand inventory management - material requirements planning medium- and short-range capacity planning shop floor control just-in-time production design and scheduling of service systems project management quality analysis, measurement and improvement. Section 5 Operations strategy revisited: building competitive advantage through world-class manufacturing. Section 6 Tutorials: transportation problems decision analysis linear programming simulation waiting line models.
Defective thermoregulation, impaired lipid metabolism, but preserved adrenergic induction of gene expression in brown fat of mice lacking C/EBPβ (2005)

C/EBPbeta (CCAAT/enhancer-binding protein beta) is a transcriptional regulator of the UCP1 (uncoupling protein-1) gene, the specific marker gene of brown adipocytes that is responsible for their thermogenic capacity. To investigate the role of C/EBPbeta in brown fat, we studied the C/EBPbeta-null mice. When placed in the cold, C/EBPbeta(-/-) mice did not maintain body temperature. This cold-sensitive phenotype occurred, although UCP1 and PGC-1alpha (peroxisome-proliferator-activated receptor gamma co-activator-1alpha) gene expression was unaltered in brown fat of C/EBPbeta(-/-) mice. The UCP1 gene promoter was repressed by the truncated inhibitory C/EBPbeta isoform LIP (liver-enriched transcriptional inhibitory protein, the truncated inhibitory C/EBPbeta isoform). Since C/EBPbeta-null mice lack both C/EBPbeta isoforms, active LAP (liver-enriched transcriptional activatory protein, the active C/EBPbeta isoform) and LIP, the absence of LIP may have a stronger effect than the absence of LAP upon UCP1 gene expression. Gene expression for UCP2 and UCP3 was not impaired in all tissues analysed. In primary brown adipocytes from C/EBPbeta(-/-) mice, induction of gene expression by noradrenaline was preserved. In contrast, the expression of genes related to lipid storage was impaired, as was the amount of triacylglycerol mobilized after acute cold exposure in brown fat from C/EBPbeta(-/-) mice. LPL (lipoprotein lipase) activity was also impaired in brown fat, but not in other tissues of C/EBPbeta(-/-) mice. LPL protein levels were also diminished, but this effect was independent of changes in LPL mRNA, suggesting that C/EBPbeta is involved in the post-transcriptional regulation of LPL gene expression in brown fat. In summary, defective thermoregulation owing to the lack of C/EBPbeta is associated with the reduced capacity to supply fatty acids as fuels to sustain brown fat thermogenesis.
Bussey Hill (1927)

The Arboretum is singularly lovely at the present time, a condition, it is true, shared by the countryside at large but peculiarly enhanced here by the presence of exotic trees and shrubs in rich variety.Enter its approaches where you will, beauty reigns on all sides.By the Jamaica Plain Gate the Asiatic Magnolias are squandering their petals around the Administration Building and large trees of Malus Jloribunda are wreathed in pink-tinted blossoms.Along Meadow Road the ruddy brown young foliage of Cercidiphyllum japonicum, the Katsura of the Japanese, is conspicuous and here and there the last of the Shadblows, Amelanchier asiatica, A. sanguinea and A. amahilis, enliven the scene.Within the Forest Hills Gate, Pears and Crabapples on the left are in full blossom and facing them are various double-flowered Japanese Cherries aglow with pink clusters.Beyond, the Forsythias still make a goodly show and so do the American Plums.In the Shrub Garden many plants are putting forth their blossoms, but the Oriental Quinces still dominate the scene.If entry be made through the Centre Street Gate the rapidly swelling buds on the Hickories attract attention on the right, and beyond the Oaks are pushing forth gray, yellowgreen and pink-tinted leaves.The native Crataegus arnoldiana and other early-flowering Hawthorns are draped in white.Just around the corner on the left the blossoms of Viburnum Carlesii fill the air with the fragrant odor of cloves.Close by, its less dense habited sister, V. bitchiuense, is laden with pinkish flowers.
Intravenous lipid emulsion for treating permethrin toxicosis in a cat. (2014)

A 2-year-old cat was presented with acute onset seizures, tremors, and hypersalivation. Permethrin toxicity was diagnosed based on a history of recent flea treatment. Measures were taken to minimize further absorption of permethrin, and methocarbamol and intravenous lipid emulsion were used to control tremors. The cat recovered and was discharged within 42 h.
A review of the comparative in-vitro activities of 12 antimicrobial agents, with a focus on five new ‘respiratory quinolones’ (1999)

The efficacies of many antimicrobial agents are being threatened by a global increase in the numbers of resistant bacterial pathogens--microorganisms that were once susceptible to some of these agents. In particular, antimicrobial resistance amongst strains of Haemophilus influenzae, Moraxella catarrhalis and Streptococcus pneumoniae has limited the usefulness of first-line agents in some clinical settings. Quinolones were introduced in the 1980s and represented a significant therapeutic advancement in the treatment of patients with infectious diseases. While these compounds possessed potent in-vitro activities against a wide range of gram-negative pathogens, their activities against some gram-positive and 'atypical' pathogens remained borderline. Further advancement in the development of quinolones has overcome some of these problems. The 'respiratory quinolones' represent a new generation within this class of molecules and comprise compounds possessing broad spectrum activities against gram-negative, gram-positive and atypical pathogens. This review will focus on the in-vitro activities of five new respiratory quinolones (gatifloxacin, grepafloxacin, levofloxacin, moxifloxacin and trovafloxacin), ciprofloxacin and six non-quinolone agents (azithromycin, clarithromycin, amoxycillin, co-amoxiclav, cefuroxime and co-trimoxazole) against a range of bacterial and atypical pathogens, including those that are now resistant to several of these compounds.