gebhart/patrepeval huggingface dataset:
Polyorganosiloxanes...Surface Active Properties (1947)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolyorganosiloxanes...Surface Active PropertiesH. Fox, Paula Taylor, and W. ZismanCite this: Ind. Eng. Chem. 1947, 39, 11, 1401–1409Publication Date (Print):November 1, 1947Publication History Published online2 February 2005Published inissue 1 November 1947https://pubs.acs.org/doi/10.1021/ie50455a607https://doi.org/10.1021/ie50455a607research-articleACS PublicationsRequest reuse permissionsArticle Views578Altmetric-Citations196LEARN 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 options Get e-Alerts
Hybrid soliton pulse source with fibre external cavity and Bragg reflector (1992)

The first results of an actively mode-locked semiconductor laser diode using a fibre external cavity with integrated Bragg reflector are reported. The device produces transform limited pulses of 18-5ps FWHM at a repetition rate of 2-37GHz. High peak power of 49 mW in the output fibre is achieved.
Cultural Characteristics of Rhizoctonia cerealis Isolated from Diseased Wheat Fields and Evaluation of the Resistance of Korean Winter Cereal Crops (2011)

밀의 잎의 황화와 줄기 고사 증상이 발생한 포장에서 분리한 균을 동정한 결과 배지 생육 반응, 형태학적 유전자적 특성과 병원성, 균의 DNA 검정 결과 밀 잎집눈무늬병을 일으키는 Rhizoctonia cerealis로 확인되었다. R. cerealis의 온도와 pH에 따른 배양적 특성을 조사한 결과 생육 최적 온도는 <TEX>$20{\sim}25^{\circ}C$</TEX>로 약간 저온성인 것으로 확인 되었다. pH에 따른 생육 반응 조사 결과는 pH 5~7에서 생육이 좋아 대체로 약산성에서 활발한 특징을 보였다. 밀 잎집눈무늬병에 대해 국내 육성 맥류 품종에 대한 저항성 검정을 수행하였다. 밀 품종 검정 결과 검정한 29품종에서 20% 이상의 발병률로 저항성이 확인되지 않았다. 안백밀 등 12품종이 발병률 20~30%의 중도저항성을 보였으나 '그루밀' 등 17품종은 40~80% 이상으로 감수성을 보였다. 사료용으로 이용되는 청보리, 귀리, 호밀, 트리티케일 검정 결과에서는 호밀 2품종에서만 50% 이상의 발병률을 모여 감수성으로 나타났으나, 청보리, 귀리, 트리티케일에서는 발병율 15% 이하로 저항성인 것으로 나타났다. 귀리나 트리티케일, 호밀의 발병과 저항성 평가는 국내에서 처음 이루어졌다. 한편 식용 및 맥주용 보리 검정 결과 겉보리 9품종 중 '탑골보리', '알보리', '서둔찰보리' 등 3품종이 발병률 10% 이하의 저항성을 보였으며 6개 겉보리와 5개 맥주보리 전체 검정 품종은 중도 저항성을 보인 반면 검정 쌀보리 품종들은 감수성인 것으로 나타났다. It was identified as a sharp eyespot (Rhizoctonia cerealis) that the isolates from abnormal symptoms in wheat that showed yellowing leaves, necrotic spot on stem base and dead tillers. These isolates have slower growth property and fewer mycelia than Rhizoctonia solani AG-1(1A) (KACC 40106). They showed binuclear cell, same media cultural and DNA characteristics to R. cerealis. They caused same symptoms on leaves and stem base appeared in artificial inoculation test, comparing to diseased wheat fields and also affect to maturing of kernels. They have optimal growth temperature and acidity on the artificial media as <TEX>$20{\sim}25^{\circ}C$</TEX> and pH 5~7, respectively. In the investigation of varietal resistance of Korean winter cereal crops to sharp eyespot, there was no resistant in wheat cultivars that all materials infected over 20% diseased ratio. 12 cultivars including 'Anbaekmil', however, considered to moderate resistance with 20 to 30% infection ratio. The others crops using in feeding, whole crop barley, oat, rye and triticale were resistant below 15% diseased degree except the rye that showed over 50% infection rate. It was the first evaluation to sharp eyespot resistance for the Korean feeding crop cultivars. Most tested Korean barley cultivars for malting and food were moderate and susceptible to the sharp eyespot. Only 3 hulled barley, 'Tapgolbori', 'Albori' and 'Seodunchalbori', showed resistance with less than 10% diseased ratio. All tested naked barley cultivars showed susceptible response to the disease.
ChemInform Abstract: Peptidomimetics for Receptor Ligands. Discovery, Development, and Medical Perspectives (1993)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Deep-blue light emitting triazatruxene core/oligo-fluorene branch dendrimers for electroluminescence and optical gain applications (2007)

We report conjugated dendrimers that can be used to fabricate efficient (≤1.0 lm W−1 at ∼100 cd m−2) deep-blue emission (1931 CIE (x, y) = (0.15, 0.10)) and high luminance (≤6000 cd m−2) organic light emitting diodes (OLEDs). Slab waveguide structures of these materials show low amplified spontaneous emission (ASE) thresholds (≥50 nJ for 390 nm, 10 ns, 10 Hz, pulsed excitation). In addition, we report OLEDs based on binary blends of the dendrimers with the green light emitting polymer poly(9, 9-dioctylfluorene-co-benzothiadiazole): these have low turn on voltages (≥2.2 V) and produce high efficiency (18.2 lm W−1 at ∼100 cd m−2) green electroluminescence.
Polyelectrolyte multilayer films modulate cytoskeletal organization in chondrosarcoma cells (2002)

The aim of this study was to evaluate polyelectrolyte multilayer films as interfaces for implants. Polyelectrolyte multilayers were built up with different terminating layers by alternate deposition of oppositely charged polyelectrolytes on which chondrosarcoma (HCS-2/8) cells were grown in the presence of serum. Films formed by an increasing number of layers were investigated. The terminating layer was made of one of the following polyelectrolytes: poly-sodium-4-styrenesulfonate (PSS), poly-L-glutamic acid (PGA), poly-allylamine hydrochloride (PAH), or poly(L-lysine) (PLL). Cell viability, inflammatory response, adherence, and cytoskeletal organization were studied. Induction of interleukin-8 (IL-8) secretion was detected on PAH and PLL ending polyelectrolyte films. Early cellular adherence was enhanced with PGA, PAH, PLL, and, to a lower extent, PSS terminating layers. Adherence was independent of the number of layers constituting the films. The presence of actin filaments and vinculin focal adhesion spots was observed on PSS or PAH ending films. They were respectively partially and totally absent on PGA and PLL terminating multilayer architectures. For PLL ending films, vinculin and actin organization was clearly dependent on the number of deposited layers. The results of this study suggest that PSS ending multilayered films constitute a good interfacial micro-environment at the material surface for HCS-2/8 cells.
Foods and food constituents that affect the brain and human behavior. (1986)

Until recently, it was generally believed that brain function was usually independent of day-to-day metabolic changes associated with consumption of food. Although it was acknowledged that peripheral metabolic changes associated with hunger or satiety might affect brain function, other effects of foods on the brain were considered unlikely. However, in 1971, Fernstrom and Wurtman discovered that under certain conditions, the protein-to-carbohydrate ratio of a meal could affect the concentration of a particular brain neurotransmitter. That neurotransmitter, serotonin, participates in the regulation of a variety of central nervous system (CNS) functions including sleep, pain sensitivity, aggression, and patterns of nutrient selection. The activity of other neurotransmitter systems has also been shown to be, under certain conditions, affected by dietary constituents which are given either as ordinary foods or in purified form. For example, the CNS turnover of two catecholamine neurotransmitters, dopamine and norepinephrine, can be altered by ingestion of their amino acid precursor, tyrosine, when neurons that release these monoamines are firing frequently. Similarly, lecithin, a dietary source of choline, and choline itself have been shown to increase the synthesis of acetylcholine when cholinergic neurons are very active. It is possible that other neurotransmitters could also be affected by precursor availability or other, as yet undiscovered peripheral factors governed by food consumption. The effects of food on neurotransmitters and behavior are discussed.
Functional phytohemagglutinin (PHA) and <i>Galanthus nivalis</i> agglutinin (GNA) expressed in <i>Pichia pastoris</i> (1999)

Phytohemagglutinin (Phaseolus vulgaris agglutinin; PHA; E- and L-forms) and snowdrop lectin (Galanthus nivalis agglutinin; GNA) were expressed in Pichia pastoris using native signal peptides, or the Saccharomyces alpha-factor preprosequence, to direct proteins into the secretory pathway. PHA and GNA were present as soluble, functional proteins in culture supernatants when expressed from constructs containing the alpha-factor preprosequence. The recombinant lectins, purified by affinity chromatography, agglutinated rabbit erythrocytes at concentrations similar to the respective native lectins. However, incomplete processing of the signal sequence resulted in PHA-E, PHA-L and GNA with heterogenous N-termini, with the majority of the protein containing N-terminal extensions derived from the alpha-factor prosequence. Polypeptides in which most of the alpha-factor prosequence was present were also glycosylated. Inclusion of Glu-Ala repeats at the C-terminal end of the alpha-factor preprosequence led to efficient processing N-terminal to the Glu-Ala sequence, but inefficient removal of the repeats themselves, resulting in polypeptides with heterogenous N-termini still containing N-terminal extensions. In contrast, PHA expressed with the native signal peptide was secreted, correctly processed, and also fully functional. No expression of GNA from a construct containing the native GNA signal peptide was observed. The PHA-E signal peptide directed correct processing and secretion of both GNA and green fluorescent protein (GFP) when used in expression constructs, and is suggested to have general utility for synthesis of correctly processed proteins in Pichia.
Methanogenic granule development in full scale internal circulation reactors (1994)

Internal Circulation (IC) reactors can be operated at higher reactor volume loading rates than Upflow Anaerobic Sludge Blanket (UASB) reactors. This results in increased gas production rates and subsequently higher average shear rates in IC-reactors. Furthermore, the liquid upflow velocity is 8-20 times higher, still granules develop successfully in IC-reactors. To investigate the granule development in IC-reactors and elucidate the process limitations with respect to granule development and biomass retention, granule samples from three full scale IC-reactors are characterized. Characterization included size distribution, strength, settling velocity, density, ash content and methanogenic activity. Granules were compared with samples from UASB reactors treating similar types of wastewaters. A hydrodynamic model was developed to describe the liquid circulation in IC reactors. The average shear rate in IC reactors is approximately twice as high compared to UASB-reactors. The two stage design of the IC-reactor allows 3-6 times higher loading rate. The experimental results showed that IC-granules are larger than UASB-granules grown on similar wastewater, while the strength of IC-granules is lower as a result of the higher sludge loading rate. Although wash-out is slightly enhanced in IC-reactors, the conditions in the second stage are tranquil enough to ensure adequate biomass retention in IC-reactors. The development of characteristic IC-granules after seeding proceeds within a few months. Physical characteristics of granules are determined mainly by biological factors.
The Stiles-Crawford effect in retinitis pigmentosa. (1982)

Stiles-Crawford functions were obtained from the maculas of 22 patients with different genetic types of retinitis pigmentosa and visual acuity of 20/40 or better. Reduced cone directional sensitivity was seen in the fovea with both focal cone electroretinographic testing and psychophysical testing. Functions from the parafovea determined with psychophysical testing showed either significant flattening or displaced peak locations. Results are discussed in terms of factors know to affect photoreceptor orientation and histologic findings in retinitis pigmentosa.
Glutamine reliance in cell metabolism (2020)

As knowledge of cell metabolism has advanced, glutamine has been considered an important amino acid that supplies carbon and nitrogen to fuel biosynthesis. A recent study provided a new perspective on mitochondrial glutamine metabolism, offering mechanistic insights into metabolic adaptation during tumor hypoxia, the emergence of drug resistance, and glutaminolysis-induced metabolic reprogramming and presenting metabolic strategies to target glutamine metabolism in cancer cells. In this review, we introduce the various biosynthetic and bioenergetic roles of glutamine based on the compartmentalization of glutamine metabolism to explain why cells exhibit metabolic reliance on glutamine. Additionally, we examined whether glutamine derivatives contribute to epigenetic regulation associated with tumorigenesis. In addition, in discussing glutamine transporters, we propose a metabolic target for therapeutic intervention in cancer.
Analysis of Social Psychology of Higher Single Recruit Students (2011)

In recent years, with the vocational college enrollment expanding, vocational education in China has accounted for half of higher education, and becomes another path to university. Higher single recruit students are different form each other in every aspect, which produces many problems. This paper listed main problems facing by the students during university life, and analyzed them by social psychology as well as proposed corresponding measures and recommendations.
Enhancement of hydroxylation and deglycosylation of 2'-deoxyguanosine by carcinogenic nickel compounds. (1989)

The effects of nickel subsulfide (Ni3S2) and nickel chloride [Ni(II)] on hydroxylation and deglycosylation of pure 2'-deoxyguanosine (dG) and on hydroxylation of guanine (Gu) residues in calf thymus DNA in the absence or presence of hydrogen peroxide (H2O2) and/or ascorbate (Ascb) were studied with the use of high-performance liquid chromatography. Incubation of 0.75 mM dG with 5 mg Ni3S2/ml (particle size less than 5 microns) at 37 degrees C in aerated 50 mM Tris/HCl buffer, pH 7.4, resulted in slow hydroxylation of dG to 8-hydroxy-2'-deoxyguanosine (8-OH-dG). This effect was greatly enhanced by 20 mM H2O2. Ni(II) alone at concentrations up to 10 mM was inactive but produced 8-OH-dG in the presence of 20 mM H2O2; the latter caused no dG hydroxylation by itself. Both Ni3S2 and Ni(II) increased the formation of 8-OH-dG from dG exposed to H2O2 + Ascb. At pH 7.4 and constant concentration of H2O2 and Ascb (20 and 8 mM, respectively), Ni(II) over the concentration range 1-10 mM raised the hydroxylation yield by up to five times that without Ni(II). Also, addition of 7.5 mM Ni(II) more than doubled the hydroxylation yield of Gu residues by the 20 mM H2O2 + 8 mM Ascb mixture (pH 7.4) in denatured DNA and doubled it in native DNA. Ni3S2 and Ni(II) alone had no effect on deglycosylation of dG and did not significantly influence the slow rate of Gu production from dG reacting with H2O2 or Ascb at pH 7.4. However, Ni(II), unlike Ni3S2, increased the extent of dG deglycosylation when added to the dG + H2O2 + Ascb system; 10 mM Ni(II) increased deglycosylation by a factor of 2.5 in 24 h. Thus, nickel carcinogens were shown for the first time to cause and/or enhance both hydroxylation and deglycosylation reactions of dG which may contribute to the observed genotoxic and carcinogenic effects of this metal.
1235 (2012)

Background: Bacterial Staph aureus co-infection with influenza causing death has been described. Per CDC 25%–35% of children are colonized with S. aureus, & 1.5% are colonized with MRSA. Healthcare associated MRSA causes >80% of invasive MRSA infections & community related strains cause < 20% of invasive infection. We report an infant with MSSA invasive pneumonia in the setting of Para-influenza virus type 2.Case:9 mo previously healthy male presented with 2-3 days cough, rhinorrhea, tactile fever, decreased PO & increased WOB. In ICU pt had “barky cough.” Stridor improved with humidified air, prn racemic epinephrine & Heliox(80:20 few hrs). Pt was transitioned to HFNC 40% Fio2 with pulse Ox mid 90’s. Pt was awake, interactive, hemodynamically stable, no skin or soft tissue lesions & gradually improved over next few hours. Initial CXR: mild peribronchial thickening. Resp Antigen Panel: positive for Para-influenza virus type 2. 24 h into admission pt’s respiratory status worsened needing intubation & positive pressure ventilation(PPV). Repeat CXR showed new LLL infiltrate & possible effusion. Labs at the time: wbc 0.8 (low), 2% Seg Neutrophils, 13% bands, 62% Lymphocytes, ANC 0.345. Blood gas showed acute respiratory acidosis(pH 7.06, paCo2 89, HCO3 25, BE neg 6, normal lactate, K 4). Empiric antibiotics (Vancomycin + Zosyn) were started immediately; cultures & gram stain pending. Over the next few hours pt had progressive ARDS (hypoxemia, hypercarbia, worsening acidosis) with escalation of PPV. As pt was being prepared for ECMO support, ETtube noted to have fresh blood consistent with pulmonary hemorrhage & new “tall peaked T waves” appeared on CR monitor. Repeat bedside labs revealed Hyperkalemia(8.9). Pt had hyperkalemic CR arrest despite treatment. Pt was pronounced dead at 35 hours of admission. Sputum gram stain was positive for 4+ Granulocytes & Gram positive cocci in pairs & clusters. Necropsy revealed extensive tracheitis, b/l hemorrhagic necrotizing pneumonia with lung cultures positive for MSSA. Conclusion: MSSA co-infection with Para-influenza 2 with leukopenia & low ANC, may be risk factor for rapidly fatal necrotizing hemorrhagic pneumonia.
Vibrations In Reciprocating Machinery And Piping Systems. (1994)

is President of Engineering Dynamics Incorporated, an in dependent consulting firm.He has over 36 years of experience and has published over 40 technical papers.He has solved problems worldwide in piping vibrations, lateral and torsional critical speeds, rotor instabilities, and crankshaft fa ilures
DETERMINANTS OF PRIMARY CARE OPTOMETRY (1980)

The frequency with which visual problems, ocular disease, and ocular manifestations of systemic disease are experienced in private optometric practice are the determinants of optometry as a primary care profession. This paper describes the basic optometric services provided and shows that these services identify optometry as a primary care profession. A problem-oriented clinical record indicates by color coding the presence of the conditions diagnosed. A computer number assigned to each coded condition and programmed into the system facilitates data retrieval. The color-coded charts provide ready access for review of specific conditions, whereas the computer permits analysis of data concerning the frequency of each of the identified condition.
LPC speech at 1200 bits per second using optimized frame repeat (1978)

Low-cost speech synthesis is here and along with it the need for high compression of stored speech. A method for achieving speech compression to 1200 bits per second based on LPC parameters is presented. The low data requirement results from an efficient data coding procedure which incorporates a variable frame rate scheme. Which reflection coefficients are to be used and the parameter update intervals are determined using a dynamic programming procedure which maximizes frame length while minimizing a prediction residual energy ratio measure. Good quality speech can be obtained from this analysis procedure using the TMC0280 speech synthesizer. A demonstration of the speech quality will be presented.
Vitamin A deficiency in Bangladesh: a review and recommendations for improvement (1999)

Although short- to long-term prevention and control programmes are to some extent in place, to improve the situation of vitamin A deficiency, Bangladesh needs a more appropriate mix of interventions for the entire population. More operational research and evaluation are needed if a fully effective programme to alleviate the problem of vitamin A deficiency is to be developed. Finally, to achieve the goal of virtual elimination of vitamin A deficiency will require an integrated approach which brings together appropriate actions at every level, within and across the many sectors of society.
Concerted or Stepwise Hydrogen Transfer in the Transfer Hydrogenation of Acetophenone Catalyzed by Ruthenium–Acetamido Complex: A Theoretical Mechanistic Investigation (2011)

In this paper, the mechanism of transfer hydrogenation of acetophenone catalyzed by ruthenium-acetamido complex was studied using density function theory (DFT) method. The catalytic cycle of transfer hydrogenation consists of hydrogen transfer (HT) step and dehydrogenation (DH) step of isopropanol (IPA). Inner sphere mechanism (paths 1 and 7) and outer sphere mechanism (paths 2-6) in HT step are fully investigated. Calculated results indicate that DH step of IPA (from (i)1 to (i)2) is the rate-determining step in the whole catalytic cycle, which has a potential energy barrier of 16.2 kcal/mol. On the other hand, the maximum potential energy barriers of paths 1-7 in the HT step are 5.9, 12.7, 24.4, 16.8, 23.7, 7.2, and 6.1 kcal/mol, respectively. The inner sphere pathways (paths 1 and 7) are favorable hydrogen transfer modes compared with outer sphere pathways, and the proton transferred to the oxygen atom of acetophenone comes from the hydroxyl group but not from amino group of acetamido ligand. Those theoretical results are in agreement with experimental report. However, in view of this DFT study in the inner sphere mechanism of HT step, hydride transfer and proton transfer are concerted and asynchronous hydrogen transfer but not a stepwise one, and hydride transfer precedes proton transfer in this case.
Metallic few-layered VSe<sub>2</sub>nanosheets: high two-dimensional conductivity for flexible in-plane solid-state supercapacitors (2018)

Flexible in-plane solid-state supercapacitor fabricated by CVD-grown metallic VSe<sub>2</sub>nanosheets presents excellent mechanical stability and high energy density.
Charge-pumping characterization of SiO/sub 2//Si interface in virgin and irradiated power VDMOSFETs (1996)

The applicability of charge-pumping technique to characterize the oxide/silicon interface in standard power Vertical Double-diffused (VD)MOS transistors is studied. Qualitative analysis of the charge-pumping threshold and flat-band voltage distributions in the VDMOS structure, supported with rigorous transient numerical modeling of the charge-pumping effect, shows that the measurements can be carried out in the subthreshold region. This conclusion is confirmed by various experimental results. The characteristics, i.e. charge-pumping current versus gate top level, is studied in detail. The changes in the characteristics after /spl gamma/-ray irradiation are analyzed. A charge-pumping-based method for separate extraction of interface state density and density of charge trapped in the oxide after irradiation of VDMOSFETs is proposed. The validity and limitations of the method are studied by experiments and modeling.