170,192 research outputs found
EXCITOTOXIC LESIONS OF THE PARABRACHIAL NUCLEI PREVENT CONDITIONED TASTE-AVERSIONS AND SODIUM APPETITE IN RATS
No full textElectrolytic lesions of the parabrachial nuclei (PEN) disrupt conditioned taste aversion (CTA) in the rat, but it is not known whether this effect is due to damaging axons of passage or to destruction of intrinsic neurons. We tested 10 rats with electrophysiologically guided, ibotenic acid lesions of the PEN (PBNx) to determine whether they could acquire a LiCl-induced CTA to l-alanine (0.3 M) or demonstrate a sodium appetite following furosemide treatment and overnight access to sodium deficient chow. Vehicle-treated and nonsurgical controls were included in the design. PBNx rats failed to develop a CTA, even after 3 conditioning trials. Moreover, more than 8 months later, a subset of the PBNx rats were again unable to learn a CTA using NaCl as the conditional stimulus (CS). After the furosemide treatment, the control rats drank an average of 20.3 mi of strong salt in 24 hr. The PBNx rats drank virtually no NaCl during the first 2 hr and averaged only 4.0 mi in 24 hr. In the PEN, damage to neuronal somata is more critical than interrupting fibers of passage for producing deficits in taste-guided behaviors
Shattuck Petra T. et Norgren Jill, Partial Justice. Federal Indian Law in a Liberal Constitutional System, 1991
No full textGragg Elizabeth C. Shattuck Petra T. et Norgren Jill, Partial Justice. Federal Indian Law in a Liberal Constitutional System, 1991. In: Droit et société, n°27, 1994. Production de la norme juridique. pp. 504-506
Shattuck Petra T. et Norgren Jill, Partial Justice. Federal Indian Law in a Liberal Constitutional System, 1991
No full textGragg Elizabeth C. Shattuck Petra T. et Norgren Jill, Partial Justice. Federal Indian Law in a Liberal Constitutional System, 1991. In: Droit et société, n°27, 1994. Production de la norme juridique. pp. 504-506
Varierad examination - en studie där tre gymnasielärare reflekterar över sin användning av alternativa examinationsformer i kursen Ma C.
No full textSammanfattning:
En varierad undervisning och bedömning förespråkas såväl i forskning som i skolans styrdokument. Den anses
skapa lust att lära och kan få fler elever att lyckas med ett bättre självförtroende som följd. Att använda
alternativa examinationsformer förefaller som en naturlig utveckling. Ändå har vi som blivande lärare en mycket
begränsad erfarenhet av detta arbetssätt.
Vi har i denna uppsats velat ta reda på gymnasielärares personliga syn på sitt eget arbete med alternativa
examinationsformer i matematik kurs C. I begreppet alternativ examinationsform lägger vi all form av
examination som inte är ett traditionellt skriftligt prov som utförs enskilt av eleven. Huvudsakliga metoden har
varit kvalitativa intervjuer av lärare i kursen Ma C. Urvalet av respondenter har skett genom ett brev som
distribuerats till cirka 75 matematiklärare i Västsverige. Endast tre lärare svarade och ställde upp på att bli
intervjuade.
Användandet av alternativa examinationsformer i kurs Ma C i Västsverige förefaller av det låga antalet
besvarade brev vara begränsat. De lärare som ställt upp på att bli intervjuade har visat på en varierad syn på sitt
arbete. Till största delen sätts elevens bästa i fokus. Det finns en uttalad vilja bland samtliga av de intervjuade
lärarna att få elever att växa och att lyckas.
Elevernas medbestämmande av examinationsform ses som knappt förekommande. Lärarna uttrycker att eleverna
saknar de kunskaper som gör att de kan avgöra vad och hur något skall bedömas.
Samtliga intervjuade lärare har en starkt formativ syn på sin bedömning där eleven hela tiden får återkoppling på
sina resultat. Det visar sig dock finnas en skillnad i vilka elevprestationer som olika lärare väljer att väga in i sin
betygsgrundande bedömning. I denna studie använder endast en lärare all tillgänglig information vid bedömning
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
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
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
A Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
A 0.12mm<sup>2</sup> Wien-Bridge Temperature Sensor with 0.1°C (3σ) Inaccuracy from -40°C to 180°C
No full text Resistor-based temperature sensors can achieve much higher resolution and energy efficiency than conventional BJT-based sensors [1], but they typically occupy more area (> 0.25 mm 2 ) and have lower operating temperatures (le 125 {circ} {C}) [2]-[4]. This work describes a 0.12mm 2 resistor-based sensor that uses a Wien-bridge (WB) filter to achieve 0.1 {circ} {C} (3 sigma) inaccuracy from - 40 {circ} {C} to 180 {circ} {C}. Compared to a state-of-the-art WB sensor [4], it occupies 6 × less area and achieves comparable relative accuracy over a 76% wider operating range. Session 10.3 Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic InstrumentationMicroelectronic
De pantheismo. Dissertatio academica quam ... p. p. Mag. Sigurd Ribbing ... et Andreas Mauritius Norgren Vermelandi in auditorio Gust. die I Decembris MDCCCXLIX H. A. M. S., Pars V [Elektronisk resurs]
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