As elongated indentations or valleys in a wetland caused by tidal currents, tidal creeks act as drainage pathways and promote tidal flat evolution. Determining their geometric information is ...essential for topographical research of tidal flats. The airborne light detection and ranging (LiDAR) system has been the most efficient surveying technique in tidal topography because it can directly acquire precise geo-referenced point clouds for wide areas. Existing tidal creek extraction methods using airborne LiDAR data have limitations such as excessive user intervention, lack of adaptability to various shapes and sizes of tidal creeks, and decreased precision due to conversion to the digital elevation model. This study aims to overcome these limitations and effectively extract various types of tidal creeks by utilizing ground filtering which is a technique to filter off-ground objects (such as buildings, trees, etc.) in land LiDAR surveys. To derive a suitable method for tidal creek extraction, three verified ground filtering techniques, adaptive triangulated irregular network, gLiDAR, and cloth simulation filtering (CSF), were selected and tested using LiDAR point data. We modified the application procedure and optimized their parameters to enable tidal creek extraction. Our results confirmed that CSF can extract various tidal creeks with minimal user intervention. Finally, we calculated their depths and generated a tidal creek map.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
The purpose of this paper is to report our experience of Descemet's stripping and non-Descemet's stripping automated endothelial keratoplasty (DSAEK/nDSAEK) for microcorneas using 6.0 mm donor ...grafts.
Three eyes of two patients (a 56-year-old woman and a 59-year-old woman) with microcornea and suffering from bullous keratopathy were treated with either DSAEK or nDSAEK. A small donor graft (6.0 mm) was inserted into the anterior chamber using a double glide (Busin glide and intraocular lens sheet glide) donor insertion technique. Both patients were followed for at least 12 months. Clinical outcomes, including intraoperative and postoperative complications, visual acuity, and endothelial cell density were evaluated.
In all three cases (100%), no intraoperative complications were noted. In one case with a flat keratometry value (32.13 D), a partial donor detachment was noted one day postoperatively, but it was reattached by rebubbling. In another case, rejection was noted 8 months postoperatively, but treatment with systemic corticosteroids was successful. A clear cornea remained in all three cases (100%), with best-corrected visual acuity greater than 20/100 (mean 20/50) at 12 months. Mean postoperative endothelial cell counts were 2,603 ± 18 cells/mm(2) at 6 months (7.4% decrease from preoperative donor cell counts) and 1,799 ± 556 cells/mm(2) at 12 months (36.5% decrease).
We report for the first time the successful use of a small donor graft (6.0 mm) for DSAEK/nDSAEK in cases of microcornea. Additional stud ies using a large number of patients are required to evaluate fully the potential advantages and drawbacks of small diameter donor grafts for microcornea.
Some neurons and glial cells originate from neuroblasts and glioblasts, stem cells that delaminate from the ectoderm of developing fly embryos. A second class of glial cells and neurons ...differentiates from multipotent precursors, the neuroglioblasts. The differentiation of both glial cell types depends on glial cell deficient/glial cell missing (glide/gcm). Although it has been shown that this transcription factor promotes gliogenesis at the expense of neurogenesis, the cellular mechanisms underlying this fate choice are poorly understood. Using loss and gain of function glide/gcm mutations here we show that the cell fate choice takes place in the neuroglioblast, which divides and produces a glioblast and a neuroblast. Such choice requires the asymmetric distribution of glide/gcm RNA, which accumulates preferentially on one side of the neuroglioblast and is inherited by one cell, the presumptive glioblast. Interestingly, glial cells can differentiate from cells that delaminate as neuroglioblasts or they can arise from cells that start expressing glide/gcm several hours after delamination of a neuroblast. Altogether, these findings identify a novel type of asymmetric cell division and disclose the lineage relationships between glia and neurons. They also reveal the mode of action of the glide/gcm promoting factor.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Provider: Swedish Open Cultural Heritage | K-samsök - Institution: Örebro läns museum - Data provided by Europeana Collections- Bilder Örebro 750-år, jubileumsveckan 10-15/8 - 2015.- All metadata ...published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
Provider: - Institution: - Data provided by Europeana Collections- Glidflygplan av modellen SG-38, bestående av fernissad träkonstruktion med dukklädda vingar. Gröna vingar och trären flygkropp. ...Märkning i rött på flygkroppens sida: "Karin".- Glidflygplanet Schneider Grunau SG-38 togs fram i Tyskland i slutet av 1930-talet som ett glidflygplan för grundläggande flygutbildning.
Denna SG-38 tillverkades 1941 på licens från Schneider av AB Flygtjänst, Limhamn. Den köptes som en byggsats, monterades i Halmstad och fick namnet "Karin". Den har använts för grundläggande glidflygutbildning vid Halmstads segelflygklubb 1941-1960. Efter den tiotusende starten den 23 oktober 1960, togs flygplanet ur tjänst. Den loggade flygtiden uppgick då till 141 flygtimmar.
Gåva till samlingarna 1971 av Gunnar Tegnhed.
Under 1940- och 1950-talen var SG-38 det vanligaste glidflygplanet för grundläggande flygutbildning. AB Flygindustri tillverkade 250 stycken SG-38:or mellan 1941 och 1944, varav huvuddelen som byggsatser. Priset för en byggsats till SG-38 var 3 300 kronor. Ett färdigmonterat flygplan kostade 5 400 kronor. I princip samtliga dåvarande svenska flygklubbar använde sig av SG-38, liksom flygvapnet. Segelflyget var vid denna tid oerhört populärt. Åldersgränsen för att lära sig flyga SG-38 var 15 år.
I slutet av 1950-talet ersattes SG-38 av tvåsitsiga skolflygplan. Luftfartsmyndigheterna belade även SG-38 och äldre segelflygplan byggda av trä med flygförbud, detta på grund av problem med limfogar.- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
Provider: Swedish Open Cultural Heritage | K-samsök - Institution: - Data provided by Europeana Collections- Plansch efter akvarell med motiv av glidflygplan. Brittska troféteamet för Schneider ...glidflygplan.- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
Provider: Swedish Open Cultural Heritage | K-samsök - Institution: - Data provided by Europeana Collections- Plansch efter akvarell med motiv av glidflygplan. Brittska troféteamet för Schneider ...glidflygplan.- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
Provider: Swedish Open Cultural Heritage | K-samsök - Institution: - Data provided by Europeana Collections- Ett skolglidplan transporteras upp till startplatsen av ett lag unga segelflygare i ...Tyskland 1922.- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
Provider: Swedish Open Cultural Heritage | K-samsök - Institution: - Data provided by Europeana Collections- Glidflygplan av den schweiziska tillverkaren Moswey visas upp på Flygets dag i ...Trollhättan, augusti 1947- "Flygets Dag Trollhättan 27/8 1947" enligt notering.
Uppgifter från medlem i Halle-Hunnebergs Flygklubb i februari 2017:
Planet ägdes av två medlemmar i Halle-Hunnebergs Flygklubb, Sixten Gustavsson och Vincent Larsson. De flög planet fram till början av 1960-talet, då det fick flygförbud på grund av att limmet i vingarna hade åldrats.
Ägarna skänkte flygplanet till Ållebergs Segelflygmuseum, Falköping, innan de gick bort. Där kan man se det på 2000-talet.- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
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