169,889 research outputs found
The gravitationally consistent sea-level fingerprint of future terrestrial ice loss
Get PDFWe solve the sea-level equation to investigate the pattern of the gravitationally self-consistent sea-level variations (fingerprints) corresponding to modeled scenarios of future terrestrial ice melt. These were obtained from separate ice dynamics and surface mass balance models for the Greenland and Antarctic ice sheets and by a regionalized mass balance model for glaciers and ice caps. For our mid-range scenario, the ice melt component of total sea-level change attains its largest amplitude in the equatorial oceans, where we predict a cumulative sea-level rise of ~ 25 cm and rates of change close to 3 mm/yr from ice melt alone by 2100. According to our modeling, in low-elevation densely populated coastal zones, the gravitationally consistent sea-level variations due to continental ice loss will range between 50 and 150% of the global mean. This includes the effects of glacial-isostatic adjustment, which mostly contributes across the lateral forebulge regions in North America. While the mid range ocean-averaged elastic-gravitational sea-level variations compare with those associated with thermal expansion and ocean circulation, their combination shows a complex regional pattern, where the former component dominates in the Equatorial Pacific Ocean and the latter in the Arctic Ocean
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDFWe 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
Merodon elegans Hurkmans 1993
No full textIdentity of <i>Merodon elegans</i> Hurkmans <p> <i>Merodon elegans</i> was described by Hurkmans (1993) based on the large number of specimens collected in the Western Mediterranean. A recent study of all known <i>Merodon</i> types resulted with discovery of two names related to the same taxon. Vujić et al. (2011) cited this species for Turkey under one of these names, <i>M. biarcuatus</i> Curran, 1939 based on the holotype found in AMNH. Syntype of <i>M. femoratus</i> Sack, 1913 found in ZMHB, resolved question about the oldest name that should be used for this species.</p> <p> <b> Merodon femoratus <i>Sack, 1913</i></b> </p> <p> syn. n. <i>biarcuatus</i> Curran, 1939</p> <p> syn. n. <i>elegans</i> Hurkmans, 1993</p> <p> <i>Types.</i> <i>Merodon femoratus</i> Sack, 1913: 446. <i>Typelocality</i>. Corsica, Greece, Asia Minor. Described based on unspecified number of males and females. One syntype was found in ZMHB: France, Corsica “Mann” “855”, a male designated here as lectotype.</p> <p> <i>Merodon biarcuatus</i> Curran, 1939: 6. <i>Typelocality</i>. Morocco. <i>Holotype</i> (studied). ♀ forest of Namora, near Rabat, Morocco (AMNH), with clear apomorphic character, broad metafemur, ventrally covered with long whitish pile as in <i>M. femoratus</i>.</p> <p> <i>Merodon elegans</i> Hurkmans, 1993. Holotype (studied). ♂ Italy, Sicilia, “V. S. v. d. Goot! Erna rif. Filiciusa 1400-1500m 22-28.vii.1961 / <i>Lampetia spinipes</i> det. V. S. v.d. Goot 1963 I Type A” (NMNL), conspecific with <i>M. femoratus</i>.</p> <p> <i>Diagnosis.</i> Medium sized species (11–13 mm) similar to <i>M.avidus</i> complex,from which can be distinguished by broad metafemur (narrower in other members from <i>M. avidus</i> complex (fig. 37A–B)), ventrally covered with long whitish pile (fig. 37D), and by deep incision between anterior and posterior surstyle lobe in male genitalia (fig. 13C: marked with arrow) (absent in <i>M. avidus</i> complex fig. 32C).</p> <p> <i>Distribution.</i> Northern Africa (Algeria, Morocco, Tunisia), south and southwest Europe (Croatia, France, Portugal, Spain, Italy).</p> <p> <b> IdentiFIcation keys of males of <i>M. nigritarsis</i> and <i>M. avidus</i> groups and <i>Merodon crassifemoris</i></b> </p> <p> Following a key to the males of the <i>M. nigritarsis</i> group (Vujić et al., 2013) we present an updated identification key for all known members of the <i>M. nigritarsis</i> and <i>M. avidus</i> groups. Identification of females is very difficult and will be the subject of future studies, using a combined integrative approach.</p> <p> 1. Posterior part of mesocoxa without long pile (<i>Merodon avidus-nigritarsis</i> lineage) (fig. 34B: cxp)..................................................... 2</p> <p> – Posterior part of mesocoxa with long pile (fig. 34A: cxp).................................................... other <i>Merodon</i> lineages (not treated here)</p> <p> 2. Species with white microtrichose vittae on black scutum and white microtrichose fasciae on dark terga; at least tergum 2 with a pair of reddish-orange maculae laterally; abdomen elongated, narrow and tapering, always longer than scutum and scutellum together; legs without spinae or other protuberances; male genitalia: anterior surstyle lobe more or less rhomboid shape, except in the <i>alagoezicus</i> subgroup where it is transformed into a narrow, elongated, strongly curved projection (<i>M. nigritarsis</i> and <i>M. avidus</i> groups + <i>M. crassifemoris</i>)....................... 3</p> <p> – Species with different combination of characters......................................................... other species groups belonging to <i>Merodon avidus-nigritarsis</i> lineage (not treated here)</p> <p> 3. Tarsi dark brown/black dorsally and orange/brown ventrally (<i>M. nigritarsis</i> group) (fig. 14E–H)..........................................................9</p> <p> – Tarsi yellow dorsally and ventrally (<i>M. avidus</i> group) (fig. 14A–D)............................... 4</p> <p> 4. Posterior surstyle lobe with hump in apical half (fFig. 32A: marked with arrow); anterior surstyle lobe short and rounded, oval (fig. 32A: al)............................ <i>M. rutitarsis</i> sp. n.</p> <p> – Posterior surstyle lobe simple; anterior surstyle lobe longer, rhomboid shape (fig. 32C: al).....................................................5 5. Metafemur broad, ventrally covered with long whitish pile (Fig. 37D); surstyle with deep incision between anterior and posterior lobes (fig. 13C: marked with arrow)........................................................... <i>M. femoratus</i></p> <p>– Metafemur less broad, without long ventral pilosity (fig. 37A–C); surstyle without deep incision (fig. 32C).................................6</p> <p> 6. Body pile golden; metafemur with very short pile (fig. 37A).............................. <i>M. megavidus</i></p> <p>– Body pile yellow to pale/grayish; metafemur with longer pile (fig. 37B–C)............. 7</p> <p> 7. Distribution: western Mediterranean; clearly defined with genetic data (see Popović et al., 2015).................................................... <i>M. ibericus</i> – Distribution: Europe, except Iberian Peninsula................................................................8</p> <p> 8. Tergum 2 with a pair of whitish, microtrichose spots; terga 3 and 4 with broad microtrichose fasciae (fig. 38A); tibiae usually pale (fig. 37B); body pile slightly shorter, especially on the tergum 4 (fig. 39A); tergum 3 with a pair of orange, lateral, triangular maculae, anterior part of tergum 3 is also predominantly orange-red, except medially, where it is narrowly black (in darker specimens at least, small orange areas are present antero-sublaterally).......................... <i>M. avidus</i></p> <p> – Tergum 2 shiny, without microtrichia; terga 3 and 4 with narrow microtrichose fasciae (fig. 38B); tibiae always partly dark (fig. 37C); body pile longer (fig. 39B); tergum 3 black (in some specimens orangered anterolaterally, but with a black posterior margin).............................. <i>M. moenium</i></p> <p> 9. Metafemur narrow (about 4.5 times longer than wide); anterior surstyle lobe with strong interior accessory lobe (fig. 12A)......................................................... <i>M. nitidifrons</i></p> <p>– Metafemur broad (as on fig. 20A–B); anterior surstyle lobe without or with small interior accessory lobe............................... 10</p> <p>10. Anterior surstyle lobe transformed to narrow, long, curved, pointed extension (fig. 12B–F)........................................................... 11</p> <p>– Anterior surstyle lobe rhomboid or triangular shape.................................................... 16</p> <p> 11. Anterior surstyle lobe, sickle-shaped, curved downwards, with pointed apex directed towards base of epandrium (fig. 27A: al).................................................. <i>M. obstipus</i> sp. n.</p> <p>– Anterior surstyle lobe curved upwards (as on fig. 12B: al)................................................ 12</p> <p>12. Apical part of metatibia with clear ventrolateral lamella (fig. 36B: la).................................13</p> <p>– Apical part of metatibia without clear ventrolateral lamella (fig. 36A)................15</p> <p> 13. Posterior surstyle lobe two times as long as wide, straight (fig. 12B: pl); anterior surstyle lobe long, narrow, with rounded curve (fig. 12B: al);................................ <i>M. alagoezicus</i></p> <p>– Posterior surstyle lobe S- shaped; anterior surstylelobewithangularcurve(fig.12C–D).......................................................................... 14</p> <p> 14. Anterior surstyle lobe with additional basal extension (fig. 12C: marked with arrow)................................................................ <i>M. satdagensis</i></p> <p> – Anterior surstyle lobe without additional basal extension (fig. 12D)......... <i>M. schachti</i> 15. Abdomen covered with pale pile; tergum 2 without white microtrichose maculae; posterior surstyle lobe broader basally and narrower in apical part (fig. 12E: pl)............................................................................ <i>M. hakkariensis</i></p> <p> – Abdomen with short black pile on posteromedial part of tergum 3 and medial parts of tergum 4; tergum 2 usually with a pair of white microtrichose spots; posterior surstyle lobe the same width along the entire length and with lamellar structure (fig. 12F: marked with arrow)..................................................................................... <i>M. lucasi</i></p> <p> 16. Face with a bulge below antennae (fig. 4D: marked with arrow); posterior surstyle lobe hook-like (fig. 13A: pl); metafemur very broad.................................................... <i>M. crassifemoris</i></p> <p>– Face without bulge..................................... 17</p> <p> 17. Pile on metafemur very short on ventral surface; surstylus on fig. 13B............ <i>M. angustus</i></p> <p>– Pile on metafemur longer on ventral surface; surstylus of different shape........... 18</p> <p> 18. Metafemur and metatibia extremely curved; male genitalia: posterior and anterior surstyle lobe separated by deep incision (fig.13D: marked with arrow)........................................................................................................ <i>M. testaceus</i></p> <p>– Metafemur and metatibia less curved; male genitalia: posterior and anterior surstyle lobe not deeply divided................. 19</p> <p>19. Metafemur broad and covered with long anteroventral and posteroventral pile, as long as half of width of metafemur (as on fig. 20A)............................................................. 20</p> <p>– Metafemur narrower and covered with shorter pile, usually on posteroventral surface much shorter or absent..............24</p> <p>20. Anterior surstyle lobe 2.5 times shorter than posterior surstyle lobe (as on fig. 23A: al).....................................................................................21</p> <p>– Anterior surstyle lobe less than 2 times shorter than posterior surstyle lobe (as on fig. 35C: al)................................................... 22</p> <p> 21. Lateral orange maculae on tergum 2 large, cover 2/3 of the posterior margin (fig. 11C); anterior surstyle lobe is about as long as wide (fig. 23C: al); lingula shorter (fig. 24C, D: l); distribution: Apennine Peninsula................................................................................ <i>M. toscanus</i></p> <p> – Lateral orange maculae on tergum 2 smaller, reaching the posterior margin only at outer corners of tergum (fig. 21A); anterior surstyle lobe is about 2 times wider than long (fig. 23A: al); lingula longer and pointed upward (fig. 24A, B: l); distribution: Anatolian Peninsula and Greece.......................................... <i>M. longisetus</i> sp. n.</p> <p> 22. Anterior surstyle lobe elongated, triangular; posterior surstyle lobe elongated and narrow (fig. 35C: al)................................................................................................................. <i>M. femoratoides</i></p> <p>– Anterior surstyle lobe shorter, not triangular; posterior surstyle lobe shorter..........................................................................23</p> <p> 23. Anterior surstyle lobe square-shaped (Fig. 13E: al); lateral projections on hypandrium gradually tapering to the tip (fig. 30C: lp)....................................................... <i>M. quadraticus</i></p> <p> – Anterior surstyle lobe high boot-shaped (fig. 29A: al); lateral projections on hypandriumnarrowonlyinapical1/4 (fig.30A: lp)............................................ <i>M. cohurnus</i> sp.n.</p> <p> 24. Posterior surstyle lobe broad, anterior surstyle lobe very short (fig. 13F: al, pl)......................................................................... <i>M. taniniensis</i></p> <p>– Posterior surstyle lobe narrower, anterior surstyle lobe longer................................... 25</p> <p> 25. Posterior surstyle lobe shorter, 1.5 times as long as wide (fig. 35A: pl)............................................................................................. <i>M. nigritarsis</i></p> <p>– Posterior surstyle lobe longer, 2.5 times as long as wide (fig. 35B: pl).................................................................................. M. latifemoris</p>Published as part of <i>Likov, Laura, Vujić, Ante, Tubić, Nataša Kočiš, Đan, Mihajla, Veličković, Nevena, Rojo, Santos, Pérez-Bañón, Celeste, Veselić, Sanja, Barkalov, Anatolij, Hayat, Rüstem & Radenković, Snežana, 2020, Systematic position and composition of Merodon nigritarsis and M. avidus groups (Diptera, Syrphidae) with a description of four new hoverfLies species, pp. 74-125 in Contributions to Zoology 89 (1)</i> on pages 119-125, DOI: 10.1163/18759866-20191414, <a href="http://zenodo.org/record/8343173">http://zenodo.org/record/8343173</a>
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
A ±25A Versatile Shunt-Based Current Sensor with 10kHz Bandwidth and ±0.25% Gain Error from -40°C to 85°C Using 2-Current Calibration
No full textAccurate current sensing is critical in many industrial applications, such as battery management and motor control. Precise shunt-based current sensors have been reported with gain errors of less than 1% over the industrial temperature range (-40°C to 85°C) [1]–[4]. However, since they are intended for coulomb counting, their bandwidth is limited to a few tens of Hz, making them unsuitable for battery impedance or motor-current sensing. This paper presents a current sensor with a wide (10kHz) bandwidth and a tunable temperature compensation scheme (TCS), which allows it to be flexibly used with different types of shunts while maintaining high accuracy. A low-cost room-temperature calibration scheme is proposed to optimize gain flatness over temperature by exploiting the shunt's self-heating at large currents. Over the industrial temperature range and a ±25A current range, it achieves state-of-the-art gain error (±0.25%) with both low-cost PCB and stable metal-alloy shunts.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
An Article About Albertus C. Van Raalte, Author Unknown, Except for Parts Taken from an Article by Anna C. Post
Get PDFAn article about Albertus C. Van Raalte, author unknown, except for parts taken from an article by Anna C. Post. The author knew first generation persons in the Holland settlement and therefore, the article has some value.https://digitalcommons.hope.edu/vrp_1890s/1012/thumbnail.jp
Archivist, Archaeologist, Author and the Tactile Window
Get PDFThe idea that the predominant way of engaging with architecture is through vision is not uncommon but also not always the most appropriate given that buildings are also experienced through tactile interventions. This consequence that emphasises visual aesthetics in order to appreciate and understand architecture probably has much to do with the assumed but rather vaguely defined role of the architect as designer in the practice of architectural design. A resulting misapprehension is that architects designing for visual appreciation think that they are actually designing physical space for embodied tactile engagement.
This prioritisation of vision in the way architects think about and approach design is questioned through the design project of the Tactile Window in which the position of the architect is redefined through inhabiting the roles of archivist, archaeologist and author during the design process.
A 16th century portrait of Queen Elizabeth I known as the Ditchley portrait, currently on display at the National Portrait Gallery is used as the source from which the design of the Tactile Window is derived from and refers back to. Questioning the validity of vision as the sole means of engaging with the work, information about the portrait and working methods gathered from the three carefully chosen positions mentioned above are drawn on and applied to the making of this Tactile Window that becomes an alternative Ditchley portrait. Through exploring the hidden historical and current narratives of and in the existing portrait, the presence of the portrait is alluded to on an alternative physical site. Key to this are the working methods of an invented archival system of design reasoning, the unearthing of archaeological texts and assuming of authorship within the individual frameworks of the roles of archivist, archaeologist and author.
The redefined role of the architect as archaeologist takes onboard the unearthing of associated drawings and writings as well as the methods of organising and applying the recovered information to the system set up by the archivist. This analysis of the graphic and text based information is used to formulate historical narratives that are woven into the design project. Whereas traditional archaeology stresses on the study of a site from a site with quantifiable limits to the physical context, the notion of archaeological sites in this instance refers to the places where the stored information is unearthed. Through the careful process of archiving and analysing this information, a new site that is located within both the physical and historical contexts of interest is discovered. The author then draws upon the elements in the archival system that includes the findings of the archaeologist to construct the alternative Ditchley portrait in this new site of the Echoing Cedar, the result of which bears no visual resemblance to the existing work.
The Tactile Window is a reading of the Ditchley portrait in which information about and in the painting is transformed into a design proposal for an inhabited structure. The intended method of interaction with this alternative portrait is not merely restricted to vision but relies on engagement with the other senses. This experience is enhanced by the interplay with certain site conditions such as wind and rain in order to allude to specific aspects of the Ditchley portrait that are not visually apparent in the existing work.
In the processes of excavating, finding and revealing the hidden information to create this alternative portrait, the effects of the visuals afforded by the existing portrait inadvertently begin to fade as the validity of a single means of visual expression is questioned
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