gebhart/patrepeval huggingface dataset:
Selection of Organic Phases for Optimal Stability and Efficiency of Flat-Sheet Supported Liquid Membranes (1991)

Abstract The efficiency and the stability of flat-sheet supported liquid membranes (SLMs) were studied in the case of the active transport of an amino acid, L-valine. Independent measurements on the organic phase (valine distribution, water concentration and viscosity) combined with the determination of some surface properties (interfacial tension and drop point) permit the description and prediction of the experimental permeability and stability of SLMs. The lifetime of the SLM was explained by taking into account diluent solubility in the aqueous phase, water concentration in the organic phase, interfacial tension between organic and feed phases, and drop point of the SLM. The experimental efficiency could be modeled by a mathematical expression involving the distribution coefficient of the solute and the viscosity of the organic solution.
[Contrast-enhanced power Doppler imaging of the liver--preliminary animal study]. (1998)

With continuous infusion and flash echo mode on contrast-enhanced power Doppler imaging, we could get more detailed information of blood flow and perfusion of the liver. This method is expected to be useful for the diagnosis of liver tumor in clinical settings.
Comparison of two free-energy expressions and their implications in surface enrichment (1993)

We compare two free-energy expressions, developed by Cohen and Muthukumar [J. Chem. Phys. 90, 5749 (1989)] and by Jerry and Nauman [J. Colloid Interface Sci. 154, 122 (1992)], in terms of their predictions concerning surface enrichment. We show that a term must be added to the former expression so that it may predict the correct dependence of the surface composition on the bulk. The latter expression does predict the correct dependence. We have also derived the quadratic surface-energy contribution from a finite (nonzero) range interaction model.
Simultaneous laryngeal and respiratory measures during varying sound-pressure level and <i>F</i>0 in singers (1996)

The purpose of the present investigation was to observe simultaneous laryngeal and respiratory function during singing. Five professionally trained classical singers (three men and two women) performed singing tasks including crescendo–decrescendo at two register transitions. Laryngeal aerodynamic measures of estimated subglottal pressure, open quotient, speed quotient, maximum flow declination rate, and alternating glottal airflow were made as well as acoustic measures of sound-pressure level and fundamental frequency. Lung, rib cage, and abdominal volume measures were also made for each breath group. Aerodynamic data were collected with a Glottal Enterprises airflow mask. Oral airflow was inverse-filtered using CSpeech. Respiratory data were collected using Respitrace. Aerodynamic, acoustic, and respiratory kinematic data were used to describe the respiratory and laryngeal mechanisms used to control register transitions. Individual subject data show respiratory and laryngeal variation when comparing register transitions. A brief video will be shown to demonstrate the technology used. [Work supported by NIH.]
Hydroboration of terpenes. 10. An improved procedure for the conversion of .alpha.-pinene into .beta.-pinene in high chemical and optical yield using a combination of the Schlosser allylic metalation of .alpha.-pinene and allylborane chemistry (1989)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHydroboration of terpenes. 10. An improved procedure for the conversion of .alpha.-pinene into .beta.-pinene in high chemical and optical yield using a combination of the Schlosser allylic metalation of .alpha.-pinene and allylborane chemistryHerbert C. Brown, Marek Zaidlewicz, and Krishna S. BhatCite this: J. Org. Chem. 1989, 54, 7, 1764–1766Publication Date (Print):March 1, 1989Publication History Published online1 May 2002Published inissue 1 March 1989https://pubs.acs.org/doi/10.1021/jo00268a054https://doi.org/10.1021/jo00268a054research-articleACS PublicationsRequest reuse permissionsArticle Views551Altmetric-Citations33LEARN 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
Pre-Impoundment Water Quality Study for the West Divide Project (1979)

Introduction: The U.S. Bureas of Reclamation is currently in the process of evaluating a number of water development projects in Southwest Colorado. As a part of the planning process the Bureasu has conducted a water qualtiy investigation, in cooperations with the UWRL, of the stream segments that will be affected by each project. The data collected in this study were used to evaluate the water quality of each stream segment with respect to various beneficial uses of water (agriculture, raw municipal water supply, protection of the aquatic biota) and will provide a baseline by which to assess the impact of each project. In addition, these data will be used in the process of site location, design and oeprations planning for reservoirs and other project features. This report includes only the results of the West Divide Project. Data were collected for three water quality stations associated with this project: Station #13: West Divide Creek Station #20: Lower Colorado River at Silt, Colorado Station #21: Upper Colorado River at Newcastle, Colorado Water quality data were collected during the period from May, 1977, through August, 1978. One sample was collected and analyzed during each month of the study except during June, 1977, when two samples were collected from some sites. The concentration of 49 water quality constituents was determined for each sample at the UWRL.
Geometrical isomerism in 2-hydroxypyridinate and pyridine-2-thiolate complexes derived from the ruthenium(<scp>IV</scp>) bis(allyl) dimer [{Ru(η<sup>3</sup>: η<sup>3</sup>-C<sub>10</sub>H<sub>16</sub>)Cl(µ-Cl)}<sub>2</sub>] (1992)

Reaction of the ruthenium(IV) chloro-bridged dimer [{Ru(η3: η3-C10H16)Cl(µ-Cl)}2] with a range of 2-hydroxypyridinate and pyridine-2-thiolate ligands (HL = 2-hydroxypyridine, 6-chloro-2-hydroxypyridine, 2-hydroxy-6-methylpyridine,2-hydroxy-4-methylquinoline,8-hydroxyquinoline,pyrrolidin-2-one,quinoline-2-thiol and 6-methylpyridine-2-thiol) gives the neutral, chelate compounds [Ru(η3: η3-C10H16)Cl(L)] each of which exists as both axial and equatorial geometric isomers. These isomers occur in varying ratios and may be distinguished by their characteristic 1H NMR spectra. The X-ray crystal structures of eq-[Ru(η3: η3-C10H16)Cl{NC6H3(O)Cl-6}] and of eq-[Ru(η3: η3-C10H16)Cl(NC9H6S)] are reported.
The Hamster as a Reservoir of Campylobacter fetus Subspecies jejuni (1981)

Journal Article The Hamster as a Reservoir of Campylobacter fetus Subspecies jejuni Get access James G. Fox, James G. Fox Massachusetts Institute of Technology, Cambridge, Massachusetts Please address requests for reprints to Dr. James G. Fox, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139. Search for other works by this author on: Oxford Academic PubMed Google Scholar Stephen Zanotti, Stephen Zanotti Massachusetts Institute of Technology, Cambridge, Massachusetts Search for other works by this author on: Oxford Academic PubMed Google Scholar H. V. Jordan H. V. Jordan Forsyth Dental Center, Boston, Massachusetts Search for other works by this author on: Oxford Academic PubMed Google Scholar The Journal of Infectious Diseases, Volume 143, Issue 6, June 1981, Page 856, https://doi.org/10.1093/infdis/143.6.856 Published: 01 June 1981
Comparison of Texture Analysis Techniques for Highly Oriented α‐Al <sub>2</sub> O <sub>3</sub> (2000)

Texture measurements were performed on liquid‐phase‐sintered alumina textured by a templated grain growth process from 1250° to 1650°C. Texture distributions were measured using X‐ray pole figures, rocking curves, Rietveld refinement, and stereology. The March–Dollase equation fitted the measured distributions very well and gave quantitative values of the degree of texture and the texture fraction. The fitting parameters of the X‐ray diffraction measurements were comparable to those measured by stereology. Rocking curve analysis was found to be straightforward and to give accurate characterization of texture in the alumina system of this study in a relatively short time.
Relationships between Ca2+, Myosin Light Chains, and ATPase in Bovine Aortic Actomyosin: Presence of Ca2+-Requiring Inactivation Factor (1979)

SummaryPhosphorylation of the myosin light chains occurs in Ca2+-sensitive aortic actomyosin. This phosporylation specifically requires ATP and is essentially completed before significant release of Pi by actomyosin ATPase can be detected. Progressive loss of Ca2+ sensitivity in preparations stored at 4° is associated with progressive loss of phos-phorylatable light chains so that phosphorylation no longer occurs. Although Ca2+ -activated ATPase is depressed in these light chain-deficient preparations, basal ATPase measured in the absence of Ca2+ is increased. These data suggest that the unphosphorylated light chains inhibit actin-stimulated myosin ATPase, whereas phosphorylation of the light chains relieves the inhibition and amplifies actin stimulation of myosin ATPase. During storage there is a parallel loss of the Ca2+ sensitivity and phosporylatable light chains. Both losses are prevented when actomyosin is stored in the presence of EGTA. These findings suggest that aortic actomyosin contains a Ca2+-dependent factor, perhaps a Ca2+-stimulated protease, which is responsible for progressive loss of phosporylatable light chains. The results of the present study provide further support for the hypothesis that the Ca2+ regulatory mechanism for actin-myosin interactions in mammalian vascular smooth muscle involves Ca2+-dependent phosphorylation of the myosin light chains.
Purification of<i>β</i>-Glucan Synthase II from Suspension-cultured Rice Cells (1993)

Journal Article Purification of β-Glucan Synthase II from Suspension-cultured Rice Cells Get access Ikuo Kuribayashi, Ikuo Kuribayashi Department of Biosystem Science, Graduate School of Science and Technology, Niigata University, 2-Ikarashi, Niigata 950–21, Japan Search for other works by this author on: Oxford Academic Google Scholar Takuya Morita, Takuya Morita Department of Biosystem Science, Graduate School of Science and Technology, Niigata University, 2-Ikarashi, Niigata 950–21, JapanDepartment of Applied Biological Chemistry, Faculty of Agriculture, Niigata University, 2-Ikarashi, Niigata 950–21, Japan Search for other works by this author on: Oxford Academic Google Scholar Toshiaki Mitsui, Toshiaki Mitsui Department of Biosystem Science, Graduate School of Science and Technology, Niigata University, 2-Ikarashi, Niigata 950–21, JapanDepartment of Applied Biological Chemistry, Faculty of Agriculture, Niigata University, 2-Ikarashi, Niigata 950–21, Japan To whom correspondence should be addressed. Search for other works by this author on: Oxford Academic Google Scholar Ikuo Igaue Ikuo Igaue Department of Biosystem Science, Graduate School of Science and Technology, Niigata University, 2-Ikarashi, Niigata 950–21, JapanDepartment of Applied Biological Chemistry, Faculty of Agriculture, Niigata University, 2-Ikarashi, Niigata 950–21, Japan Search for other works by this author on: Oxford Academic Google Scholar Bioscience, Biotechnology, and Biochemistry, Volume 57, Issue 4, 1 January 1993, Pages 682–684, https://doi.org/10.1271/bbb.57.682 Published: 01 January 1993 Article history Received: 26 October 1992 Published: 01 January 1993
Network analysis reveals cross-links of the immune pathways activated by bacteria and allergen (2011)

Many biological networks are characterized by directed edges that represent either activating (positive) or inhibiting (negative) regulation. Most graph-theoretical methods used to study biological networks either disregard this important feature, or study the role of edge sign only in the context of small subgraphs called motifs. Here, we develop path-based measures which capture, on continuous scales spanning negative and positive values, both the long- and short-range regulatory relationships among node pairs. These measures also allow the quantification of each node's overall influence on the whole network and its susceptibility to regulation by the rest of the network. We apply the measures to a network representation of the mammalian immune response to simultaneous attack by allergen and respiratory bacteria. Although allergen and bacteria elicit different immune pathways, there is significant overlap (cross-talk) and feedback between these pathways. We identify key immune components in this cross-talk; particularly revealing the importance of natural killer cells as a key regulatory target in the cross-talk.
Total Synthesis of Avermectin B1a: Planning of the Synthesis and Preparation of the C1-C10 "Southern" Hydrobenzofuran Fragment (1990)

A strategy for the synthesis of the anthelmintic macrolide avermectin B1a (1) is presented, involving a highly convergent approach necessitating the preparation and coupling of five key fragments. The C1-C10 hydrobenzofuran unit 2 was obtained in 14 steps from a previously reported, optically pure cyclohexanone derivative 3.
Double-illumination photoacoustic microscopy of intestinal hemodynamics following massive small bowel resection (2012)

Massive small bowel resection (SBR) results in villus angiogenesis and intestinal adaptation. The exact mechanism that causes intestinal villus angiogenesis remains unknown. We hypothesize that hemodynamic changes within the remnant bowel after SBR will trigger intestinal angiogenesis. To validate this, we used photoacoustic microscopy (PAM) to image the microvascular system of the intestine in C57B6 mice and to measure blood flow and oxygen saturation (sO<sub>2</sub>) of a supplying artery and vein. Baseline measurements were made 6 cm proximal to the ileal-cecal junction (ICJ) prior to resection. A 50% proximal bowel resection was then performed, and measurements were again recorded at the same location immediately, 1, 3 and 7 days following resection. The results show that arterial and venous sO<sub>2</sub> were similar prior to SBR. Immediately following SBR, the arterial and venous sO2 decreased by 14.3 ± 2.7% and 32.7 ± 6.6%, respectively, while the arterial and venous flow speed decreased by 62.9 ± 17.3% and 60.0 ± 20.1%, respectively. Such significant decreases in sO<sub>2</sub> and blood flow indicate a hypoxic state after SBR. Within one week after SBR, both sO<sub>2</sub> and blood flow speed had gradually recovered. By 7 days after SBR, arterial and venous sO<sub>2</sub> had increased to 101.0 ± 2.9% and 82.7 ± 7.3% of the baseline values, respectively, while arterial and venous flow speed had increased to 106.0 ± 21.4% and 150.0 ± 29.6% of the baseline values, respectively. Such increases in sO<sub>2</sub> and blood flow may result from angiogenesis following SBR.
Gas chromatographic-mass spectrometric identification of isosaccharino-1,4-lactone in human serum and urine. (1980)

We have identified alpha-isosaccharino-1,4-lactone and beta-isosaccharino-1,4-lactone in the ethyl acetate extract of an ultrafiltrate of blood and of normal human urine, using high-resolution gas chromatography-mass spectrometry. The ultrafiltrate of blood was obtained from three patients on hemodialysis, one with psoriasis vulgaris, one with uremia, and one with amyotrophic lateral sclerosis. The concentration of beta-isosaccharino-1,4-lactone in the ultrafiltrate was two- to threefold that of alpha-isosaccharino-1,4-lactone. Mass fragmentography showed that isosaccharino-1,4-lactone is normally present in human serum in a concentration of 1.7 (SD 1.5) mg/L. In physiological fluid, isosaccharino-1,4-lactone apparently is present in its hydrated form, isosaccharinate.
New sources of mediaeval music (1982)

Abstract While working with the magnificent collection of mediaeval music manuscripts on microfilm housed at the Institut für Musikwissenschaft der Universität Erlangen—Nürmberg, at Erlangen, in search of sources for mediaeval sequences,1 I came across a number of curiosities, amongst which are two sources of almost completely unknown mediaeval motets, and a source for a well-known motet by Philippe de Vitry; I will add to these three sources another, which presents a unique fragment of two Ars nova Mass Ordinary movements.
광고수용자의 종결욕구와 자아해석이 공명광고에 대한 태도에 미치는 조절효과 (2012)

본 연구에서는 기업이 보편적으로 활용하고 있는 공명광고의 효과를 검증하고자 하였다. 그 결과, 소비자가 비공명 광고보다 공명광고에 대하여 더 호의적인 광고태도를 형성함을 밝혔다. 또한 소비자의 개인적 특성 변수인 종결욕구와 자기해석을 제안하여, 이 두가지 변수가 공명광고의 효과에 조절작용을 함을 확인하였다. 구체적으로, 종결욕구가 낮은 소비자는...
NICE Module Technology Using Industrial n-Type Solar Cells without Front and Rear Busbars (2013)

The reduction of manufacturing costs for solar panels remains the priority for all photovoltaic producers in the world. Up to today strong efforts have been made to optimize the conventional cell and module processes (p-type silicon solar cells with selective or lightly doped emitters, standard lamination with glass / EVA / cells / EVA / PVF back sheet). From now on new strategies are required to go below the current production costs. In this work, we have investigated the possibility of using the NICE module technology ("New Industrial Cell Encapsulation"), for the encapsulation of low cost n-type “PhosTop” cells. This combination with a soldering-free module technology allows removing Ag busbars from the front grid of the cells - resulting in considerable savings of this precious metal and the possibility to contact the full Al rear surface that is used to create the rear surface emitter. First full size test modules, using 60 Phostop cells, resulted in high module fill factors of > 75%.
HIC1 Regulates Tumor Cell Responses to Endocrine Therapies (2009)

An intractable problem impeding breast cancer treatment by the most frequently prescribed endocrine therapy tamoxifen is the inevitable development of resistance, and the molecular mechanisms underlying this loss of responsiveness by breast cancers have been under intense investigation but are not yet fully elucidated. Our recent reports demonstrated that the tumor suppressor heavily methylated in cancers 1 (HIC1) plays an essential role in growth suppression mediated by external stimuli. We report here that novel tumor suppressor HIC1 is required for growth suppression by estrogen antagonists in breast cancer cells. We also find that HIC1 expression is dramatically induced by exposure to estrogen antagonists in sensitive cells, via a c-Jun N-terminal kinase 1 (JNK1) and prohibitin-mediated signaling pathway. This induction is lost in spontaneously antagonist-resistant breast cancer cells. Furthermore, reintroducing HIC1 into resistant breast cancer cells restored their sensitivity to the estrogen antagonists, indicating the existence of a novel regulatory mechanism for growth control of breast cancer cells.
Penicillin Production by the Aspergillus Nidulans Group (1947)

(1947). Penicillin Production by the Aspergillus Nidulans Group. Mycologia: Vol. 39, No. 5, pp. 582-586.
iProClass: an integrated, comprehensive and annotated protein classification database (2001)

The iProClass database is an integrated resource that provides comprehensive family relationships and structural and functional features of proteins, with rich links to various databases. It is extended from ProClass, a protein family database that integrates PIR superfamilies and PROSITE motifs. The iProClass currently consists of more than 200,000 non-redundant PIR and SWISS-PROT proteins organized with more than 28,000 superfamilies, 2600 domains, 1300 motifs, 280 post-translational modification sites and links to more than 30 databases of protein families, structures, functions, genes, genomes, literature and taxonomy. Protein and family summary reports provide rich annotations, including membership information with length, taxonomy and keyword statistics, full family relationships, comprehensive enzyme and PDB cross-references and graphical feature display. The database facilitates classification-driven annotation for protein sequence databases and complete genomes, and supports structural and functional genomic research. The iProClass is implemented in Oracle 8i object-relational system and available for sequence search and report retrieval at http://pir.georgetown.edu/iproclass/.
Endocrine Responses in Cows Milked by Hand and Machine (1992)

Plasma concentrations of oxytocin, prolactin, and cortisol were compared in five Swedish Red and White cows milked by hand versus machine. Cows were divided into two groups. One group was hand-milked; the other group was machine-milked. Treatments were switched every other day. The experiment was carried out for 6 d. Blood samples were taken prior to, during, and after milking and were assayed for hormones. More oxytocin and prolactin were released in hand-milked cows. There were no significant diurnal differences between the total amount of oxytocin released for the different treatments, but prolactin tended to be higher during hand-milking in the evening than in the morning milking. Cortisol concentrations were greater during hand-milking than during machine-milking. There were no significant treatment differences with regard to the total amount of cortisol released. During morning milking, cortisol concentrations were higher during hand-milking than during machine-milking. Our data show that hand-milking results in a pronounced and prolonged release of oxytocin and prolactin.
Microfluidic diagnostic tool for the developing world: contactless impedance flow cytometry (2012)

In this work, we demonstrate a novel and cost-effective approach to implement a disposable microfluidic contactless impedance cytometer. Conventional methods for single cell impedance cytometry use microfabricated electrodes in direct contact with the buffer to measure changes of its electrical impedance when cells pass through the applied electric field. However, this approach requires expensive microfabrication of electrodes, and also, the fabricated electrodes cannot be reused without thorough and time-consuming cleaning process. Here, we introduce a novel approach to allow for single cell impedance cytometry using electrodes that can be reused, without the need for microfabrication of the electrodes. This disposable device can be potentially inserted onto a printed circuit board (PCB) which has a non-disposable, yet inexpensive, electronic reading apparatus. This significantly reduces the manufacturing costs, making it suitable for low resource settings, such as point-of-care testing in the developing countries.
Nickel-Catalysed Conjugate Addition of Trimethylaluminum to Sterically Hindered α,β-Unsaturated Ketones (1995)

Nickel acetylacetonate is an efficient catalyst for the 1,4-addition of trimethylaluminum to α,β-unsaturated ketones. The reaction is strongly solvent dependent and gives best results in tetrahydrofuran or ethyl acetate. The reaction is especially useful for the nucleophilic 1,4-methyl transfer to sterically hindered enones. A β-cuparenone synthesis via conjugate methyl group addition to an enone precursor is described.