230,010 research outputs found
Yi-Fang Lin Piano Recital Program Notes
No full textThis report is Yi-Fang Lin Piano Recital Program Notes on April., 23, 2019. The two pieces on the program include Piano Sonata in C minor, K.457 by W.A. Mozart, and Piano Concerto No.1 in F-Sharp minor, Op.1 by S. Rachmaninoff. The note will introduce the life of two composers, the compositional background of individual work, and the analysis of the structure, including tonal design and thematic material in each work
A Fourier-Based Valuation Method for Bermudan and Barrier Options under Heston’s Model
No full textWe develop an efficient Fourier-based numerical method for pricing Bermudan and discretely monitored barrier options under the Heston stochastic volatility model. The two-dimensional pricing problem is dealt with by a combination of a Fourier cosine series expansion, as in [F. Fang and C.W. Oosterlee, SIAM J. Sci. Comput., 31 (2008), pp. 826–848, F. Fang and C. W. Oosterlee, Numer. Math., 114 (2009), pp. 27–62], and high-order quadrature rules in the other dimension. Error analysis and experiments confirm a fast error convergence.Delft Institute of Applied MathematicsElectrical Engineering, Mathematics and Computer Scienc
Clorindaia adama Blocker & Fang
No full textClorindaia adama Blocker & Fang (Figs. 22A 2, 22B 2, 27) Clorindaia adama Blocker & Fang, 1992: 342 [original description, illustration, morphology]; Zanol, 2008: 24 [catalogue]; Zahniser, 2007 [online catalogue]; Freytag & Gaiani, 2017 [online catalogue] Diagnosis. C. adama can be distinguished from other species in the genus by the crown length equal to or longer than the interocular width, aedeagus without unpaired apical process, aedeagus symmetrical, and aedeagus with a pair of very thin apical processes forming semicircles in caudal view. Material examined. Holotype ♂ examined [SEMC]. Male genitalia appear to be more or less as figured by Blocker & Fang (1992). Distribution. This species is known only from the type locality in Paraguay (Itapúa Dept.).Published as part of Zahniser, James N., 2021, Revision of the New World leafhopper tribe Faltalini (Hemiptera: Cicadellidae: Deltocephalinae) and the evolution of brachyptery, pp. 1-160 in Zootaxa 4954 (1) on page 43, DOI: 10.11646/zootaxa.4954.1.1, http://zenodo.org/record/469077
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Le pluriel en fang ntumu
No full textLe fang est une langue bantu, il comporte cinq dialectes dont fait parti le ntúmú. Le fang ntúmú est une langue à classe. Tous les nominaux d’une classe gouvernent le même accord et la langue leur affecte un indice de type préfixal : le préfixe nominal.Le préfixe nominal apporte des informations sur la classe, mais également sur le nombre. Les travaux menés au sujet du pluriel en fang ntúmú montrent que celui-ci est obtenu par l’agencement de deux préfixes : celui du pluriel et du singulier.Nous montrerons pour notre part qu’il s’agit en réalité d’une construction préfixale complexe de type CVN, ce qui serait assez novateur puisque le préfixe nominal dans les langues bantu est généralement de type Ø-, C-, V- ou CV-. Notre communication s’inscrit dans le deuxième axe des RJC qui définit le cotexte comme l’ensemble des unités linguistiques.Fang is a bantu language. It contains 5 dialects and ntúmú is one of them. Fang ntúmú makes classification of his nouns. All nouns of the same class govern the same agreement, and the language allocates to them a prefixal mark: the nominal prefix. The nominal prefix brings information not only about the class of every noun, but also about number. Some works about the plural in fang ntumu show that this one is obtained by the arrangement of two prefixes: that of plural and that of singular. We shall show for our part that the plural is really obtained by a complex prefixal construction with tree elements: a consonant, a vowel and a nasal. So, his structure is CVN. This conception is innovative because the structure of nominal prefix in bantu languages is generally, Ø-, C-, V-, or CV-. This communication joins in the second axis of RJC, which defines the cotext as all linguistic units
Posttranslational modification of serine to formylglycine in bacterial sulfatases - Recognition of the modification motif by the iron-sulfur protein AtsB
No full textMarquordt C, Fang QH, Will E, Peng JH, Figura von K, Dierks T. Posttranslational modification of serine to formylglycine in bacterial sulfatases - Recognition of the modification motif by the iron-sulfur protein AtsB. JOURNAL OF BIOLOGICAL CHEMISTRY. 2003;278(4):2212-2218.Calpha-formylglycine is the catalytic residue of sulfatases. Formylglycine is generated by posttranslational modification of a cysteine (pro- and eukaryotes) or serine (pro-karyotes) located in a conserved (C/S)XPXR motif. The modifying enzymes are unknown. AtsB, an iron-sulfur protein, is strictly required for modification of Se-72 in the periplasmic sulfatase AtsA of Klebsiella pneumoniae. Here we show W that AtsB is a cytosolic protein acting on newly synthesized serine-type sulfatases, (ii) that AtsB-mediated FGly formation is dependent on AtsA's signal peptide, and (iii) that the cytosolic cysteine-type sulfatase of Pseudomonas aeruginosa can be converted into a substrate of AtsB if the cysteine is substituted by serine and a signal peptide is added. Thus, formylglycine formation in serine-type sulfatases depends both on AtsB and on the presence of a signal peptide, and AtsB can act on sulfatases of other species. AtsB physically interacts with AtsA in a Ser(72)-dependent manner, as shown in yeast two-hybrid and GST pulldown experiments. This strongly suggests that AtsB is the serine-modifying enzyme and that AtsB relies on a cytosolic function of the sulfatase's signal peptide
Le pluriel en fang ntumu
No full textFang is a bantu language. It contains 5 dialects and ntúmú is one of them. Fang ntúmú makes classification of his nouns. All nouns of the same class govern the same agreement, and the language allocates to them a prefixal mark: the nominal prefix. The nominal prefix brings information not only about the class of every noun, but also about number. Some works about the plural in fang ntumu show that this one is obtained by the arrangement of two prefixes: that of plural and that of singular. We shall show for our part that the plural is really obtained by a complex prefixal construction with tree elements: a consonant, a vowel and a nasal. So, his structure is CVN. This conception is innovative because the structure of nominal prefix in bantu languages is generally, Ø-, C-, V-, or CV-. This communication joins in the second axis of RJC, which defines the cotext as all linguistic units
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
Clorindaia latiabdoma Blocker & Fang
No full textClorindaia latiabdoma Blocker & Fang (Figs. 22A 3, 22B 3, 22Q, 27) Clorindaia latiabdoma Blocker & Fang, 1992: 344 [original description, illustration, morphology]; Zanol, 2008: 24 [catalogue]; Zahniser, 2007 [online catalogue]; Freytag & Gaiani, 2017 [online catalogue] Diagnosis. The male of C. latiabdoma is not known, making it difficult to establish its identity. However, the coloration of the face of the female appears to be unique in the genus: clypellus mostly dark brown, with some areas of lighter coloration; lorum ivory; gena dark brown laterad of lorum, otherwise ivory to tawny except for some dark brown above and below antennal pit; frontoclypeus ivory to tawny centrally, with pair of poorly defined broad brown markings extending from clypellus to antennal pits. The measurement reported by Blocker & Fang (1992) of 4.8 mm is confirmed here. Material examined. Holotype ♀ [SEMC]. Distribution. This species is known only from the type locality in Paraguay (Caaguazú Dept.). Remarks. This species is known only from a single female. The unique coloration of the face may help to identify males and clarify the identity of this species in the future.Published as part of Zahniser, James N., 2021, Revision of the New World leafhopper tribe Faltalini (Hemiptera: Cicadellidae: Deltocephalinae) and the evolution of brachyptery, pp. 1-160 in Zootaxa 4954 (1) on page 45, DOI: 10.11646/zootaxa.4954.1.1, http://zenodo.org/record/469077
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