201,166 research outputs found
Letter: Charles J. Schnabel to Ida M. Tarbell, October 19, 1910
Handwritten letter, 2 page
Visualizing cell-laden fibrin-based hydrogels using cryogenic scanning electron microscopy and confocal microscopy
The present investigation explores the microscopic aspects of cell-laden hydrogels at high resolutions, using three-dimensional cell cultures in semi-synthetic constructs that are of very high water content (>98% water). The study aims to provide an imaging strategy for these constructs, while minimizing artefacts. Constructs of poly(ethylene glycol)-fibrinogen and fibrin hydrogels containing embedded mesenchymal cells (human dermal fibroblasts) were first imaged by confocal microscopy. Next, high-resolution scanning electron microscopy (HR-SEM) was used to provide images of the cells within the hydrogels, at submicron resolutions. Because it was not possible to obtain artefact-free images of the hydrogels using room-temperature HR-SEM, a cryogenic HR-SEM imaging methodology was employed to visualize the sample while preserving the natural hydrated state of the hydrogel. The ultrastructural details of the constructs were observed at subcellular resolutions, revealing numerous cellular components, the biomaterial in its native configuration, and the uninterrupted cell membrane as it relates with the biomaterial in the hydrated state of the construct. Constructs containing microscopic albumin microbubbles were also imaged using these methodologies to reveal fine details of the interaction between the cells, the microbubbles, and the hydrogel. Taken together with the confocal microscopy, this imaging strategy provides a more complete picture of the hydrated state of the hydrogel network with cells inside. As such, this methodology addresses some of the challenges of obtaining this information in amorphous hydrogel systems containing a very high water content (>98%) with embedded cells. Such insight may lead to better hydrogel-based strategies for tissue engineering and regeneration
Munidopsis maunga Schnabel & Bruce 2006
Munidopsis maunga Schnabel & Bruce, 2006 Munidopsis maunga Schnabel & Bruce, 2006: 55, fig. 3 (New Zealand, Kermadec volcanic arc, 636–751 m). Type data: holotype, male, NIWA 21138. Type locality: New Zealand, Macauley volcano caldera, Kermadec volcanic arc, 30º10.09´S, 178º29.89´W, 636–751 m.Published as part of Baba, Keiji, Macpherson, Enrique, Poore, Gary C. B., Ahyong, Shane T., Bermudez, Adriana, Cabezas, Patricia, Lin, Chia-Wei, Nizinski, Martha, Rodrigues, Celso & Schnabel, Kareen E., 2008, Catalogue of squat lobsters of the world (Crustacea: Decapoda: Anomura-families Chirostylidae, Galatheidae and Kiwaidae), pp. 1-220 in Zootaxa 1905 (1) on page 150, DOI: 10.11646/zootaxa.1905.1.1, http://zenodo.org/record/513458
2023 Artur Schnabel- Early Piano Works and Early Art Songs op. 11/ fortepian
Artur Schnabel- Early Piano Works and Early Art Songs op. 11 – to pierwsza płyta w Polsce z utworami solowymi na fortepian i wczesnymi pieśniami na głos i fortepian wybitnego pianisty i kompozytora Artura Schnabla. Na płycie znalazło się 15 utworów kompozytora. Wykonawcy: Jarosław Pelc - fortepian, Magda Niedbała- Solarz- mezzosopran. Płytę wydało wydawnictwo Henewit studio.
Artur Schnabel (1882–1951) to austriacki pianista i kompozytor urodzony na ziemiach polskich w rodzinie żydowskiej. Był uczniem Teodora Leszetyckiego i wybitnym interpretatorem dzieł Mozarta, Beethovena, Brahmsa i Schuberta. Karierę pianistyczną łączył z działalnością kompozytorską.
Prezentowane na płycie 3 Fantasy Pieces (bez opusu) powstały w roku 1898, są utrzymane w duchu romantycznym. Zostały zadedykowane profesorowi Teodorowi Leszetyckiemu. Schnabel skomponował je na studencki konkurs pianistyczny sponsorowany przez Leszetyckiego. Za każdy z trzech utworów otrzymał główną nagrodę. Cechą wczesnej twórczości Artura Schnabla jest pewna zwięzłość motywiczna dominująca w większości utworów z tego okresu. 3 Fantasy Pieces tworzą zróżnicowane miniatury fortepianowe o odmiennym nastroju i charakterze.
Drugi cykl 3 Piano Pieces powstał w 1906 roku i został zadedykowany Willy’emu Tiktinowi, który był przyjacielem Schnabla. Rozpoczyna go Rhapsodie o miarowej rytmice i zwięzłej narracji muzycznej, nawiązującej nieco do Promenady z Obrazków z wystawy M. Musorgskiego, pełni rolę wprowadzającą do kolejnych utworów cyklu. W drugim utworze, mrocznym Nachtbild, znajdziemy dalekie echa muzyki J. Brahmsa i A. Scriabina, z rozbudowaną fakturą fortepianową i zdradzającą dwudziestowieczne wpływy harmoniką.
Skomponowane przez Artura Schnabla pieśni z op. 11 powstały w latach 1899–1902 w wyniku współpracy ze śpiewaczką Therese Behr. Romantyczna aura jest tu wyrażona frazą melodyczną, uczuciowością oraz subtelną paletą zmiennych nastrojów, pozostających w kręgu twórców pieśni romantycznych Franciszka Schuberta i Roberta Schumanna.
Na płycie znalazły się utwory:
01 Diabolique – Capriccio
02 Douce Tristesse – Reverie
03 Valse Mignonne – Kleiner Walzer / Little Valse
04 Rhapsodie Op. 15 no 1
05 Nachtbild Op. 15 no 2
06 Wunder Op. 11 no 1
07 Dann Op. 11 no 2
08 Ein ferner Frauensang... Op. 11 no 3
09 Marienlied Op. 11 no 4
10 Dieses ist ein rechter Morgen Op. 11 no 5
11 Manche Nacht Op. 11 no 6
12 Sieh mein Kind ich gehe Op. 11 no 7
13 Waldnacht Op. 11 no 8
14 Das Veilchen an den spanischen Flieder Op. 11 no 9
15 Tanzlied Op. 11 no 10Artur Schnabel- Early Piano Works and Early Art Songs op. 11 – to pierwsza płyta w Polsce z utworami solowymi na fortepian i wczesnymi pieśniami na głos i fortepian wybitnego pianisty i kompozytora Artura Schnabla. Na płycie znalazło się 15 utworów kompozytora. Wykonawcy: Jarosław Pelc - fortepian, Magda Niedbała- Solarz- mezzosopran. Płytę wydało wydawnictwo Henewit studio
Dissertatio philosophica examinans placita quaedam scripti recentissimi sub tit : Geologia, sive, Natürliche Wissenschafft von Erschaffung und Bereitung der Erd-Kugel
... Praeside ... M. Zacharia Grapio ... respondente auctore Joanne Schnabel ... ad d. 22. Septembr. Anno M. DCC ... defensaDissertation Universität Rostock, 170
Phylladiorhynchus australis Schnabel & Ahyong 2019
Phylladiorhynchus australis Schnabel & Ahyong, 2019 (Fig. 11F) Galathea pusilla. — Thomson, 1899: 193, pl. 21, fig. 7 (Wanganui, Cook Strait, Paterson Inlet, 14.6 m).— Chilton, 1906: 267 (Channel Islands, Auckland, 46 m).— Chilton, 1911: 303 (New Zealand, 64 m).— Borradaile, 1916: 92 (off Three Kings Islands and off North Cape, New Zealand, 183– 128 m).— Hale, 1927: 80 (South Australia, 137 m). Phylladiorhynchus pusillus. — Rowden et al., 2010, tab. 3 (in part). Phylladiorhynchus australis Schnabel & Ahyong, 2019: 304, figs. 2, 3, 15A (New Zealand and westward to southern Australia, 15–366 m). Material examined. New Zealand. NIWA 76630, Stn. TAN1108/166, North Canterbury, 43.099 –43.095 °S, 173.446– 173.444°E, 79 m, 26 May 2011: 4 M 4.4–5.2 mm, 1 ov. F 4.1 mm, 7F 4.0– 4.8 mm. Donated to MNHN (MNHN-IU-2019-2596). Diagnosis (modified from Schnabel & Ahyong 2019). Rostrum lateral margins convex; subapical spines present. Epigastric region with 4 spines; parahepatic spines on protogastric region absent.Anterior metagastric ridge continuous, not medially interrupted; hepatic spine present. Thoracic sternite 3 anterior margin biconcave, with obtuse median projection. Pleonal tergite 3 with anterior and posterior transverse ridge. Antennular article 1 with 5 distal spines, lateralmost spine always distinct. Antennal article 1 mesial process distally overreaching peduncle and usually reaching second lateral antennular spine; article 2 with lateral spine distinctly larger than mesial spine; article 3 usually unarmed or with minute mesial spine only. Flexor margin of Mxp3 merus with one prominent spine only. P2–4 dactylus extensor margin without upright spines at bases of movable spines. Genetic data. COI and 16S, Table 1. Distribution. New Zealand continental shelf, from the Snares to the Three King Islands and northwards to Norfolk Island, and westward to southern Australia (New South Wales to South Australia), between 15 and 366 m (from Schnabel & Ahyong 2019). Remarks. The species closely resembles P. nui Schnabel & Ahyong, 2019, from New Zealand and Eastern Australia and P. integrus (Benedict, 1902) from Japan to Chesterfield Islands (see the differences under the Remarks of P. integrus).Published as part of Rodríguez-Flores, Paula C., Macpherson, Enrique & Machordom, Annie, 2021, Revision of the squat lobsters of the genus Phylladiorhynchus Baba, 1969 (Crustacea, Decapoda, Galatheidae) with the description of 41 new species, pp. 1-159 in Zootaxa 5008 (1) on page 23, DOI: 10.11646/zootaxa.5008.1.1, http://zenodo.org/record/515745
Is There a Union Wage Premium in Germany and Which Workers Benefit Most?
Using representative data from the German Socio-Economic Panel (SOEP), this paper finds
a statistically significant union wage premium in Germany of almost three percent, which is not
simply a collective bargaining premium. Given that the union membership fee is typically about
one percent of workers’ gross wages, this finding suggests that it pays off to be a union member.
Our results show that the wage premium differs substantially between various occupations and
educational groups, but not between men and women. We do not find that union wage premia are
higher for those occupations and workers which constitute the core of union membership. Rather,
unions seem to care about disadvantaged workers and pursue a wider social agenda
Munidopsis sculpo Schnabel & Ahyong, 2015, sp. nov.
Munidopsis sculpo sp. nov. (FigS 3–4) Material examined. Holotype - female (NIWA 94044), cl 12.8 mm, pcl 9.0 mm, Forde Seamount, Louisville Ridge, New Zealand, 35 ° 22.06–28.16 ’S, 170 ° 20.78 – 20.77 ’E, 8 February 2014, 1175– 1280 m, stn. TAN 1402 / 10. Paratype - male (NIWA 94030) (rostrum broken), pcl 6.5 mm, Forde Seamount, Louisville Ridge, New Zealand, 35 ° 21.20–21.30 ’S, 170 ° 22.24 – 22.10 ’E, 8 February 2014, 1154– 1270 m, stn. TAN 1402 / 8. Diagnosis. Entire body densely tuberculate or granulate. Frontal margin transverse. Carapace gastric region with large longitudinal median process; paired postcervical processes more densely furnished with tubercles than remaining carapace; cardiac region with large process; lateral margin with two large tuberculate processes posterior to anterolateral spine; posterior margin with upturned ridge with median notch. Rostrum triangular, slightly constricted proximally, without spines. Abdominal tergites 2−4 with large rounded median projection. Eyestalk immovable, eye-spine absent, cornea oval. Antennule dorsolaterally cristate. Pereopod 2 nearly reaching end of pereopod 1. Pereopods 2−4 propodi of uniform width; dactylus with eight or nine movable spines along entire length. Pereopods 1−3 with epipods. Description. Carapace: Moderately convex in cross section; length including rostrum, 1.6 times as long as wide (pcl 1.1 times width); densely covered; densely covered with tubercles which are distally serrated, dorsoventrally flattened and curved anteriorly, some constricted basally giving them a pedunculate appearance. Rostrum 0.4 pcl, triangular, slightly constricted proximally, densely covered in tubercles, otherwise unarmed; not deflected. Frontal margin transverse; antennal spine present. Lateral margins convex, with three blunt, swollen tuberculate processes, one at anterolateral angle, and one each on anterior and posterior branchial regions. Carapace regions well defined; cervical groove distinct; strong upright processes in gastric, postcervical and cardiac region as follows: a strongly convex narrow longitudinal ridge spanning entire length of gastric region; a blunt thorn-shaped process at centre of cardiac region, higher than gastric ridge; a pair of postcervical processes, anteriorly furnished with an arrow-shaped, particularly dense cluster of tubercles, posteriorly with a small diamond-shaped patch of smooth cuticle. Posterior ridge medially bilobed, preceded by small transverse area of smooth cuticle. Pterygostomian flap narrow, surface densely granulate; anterior margin rounded. Sternum: 1.1 times as wide as long. Sternite 3 lateral margin subacute; anterior margin rounded, irregular; with shallow central notch; surface smooth. Sternite 4 2.5 times as wide as sternite 3; anterior margin slightly convex, densely furnished with granules; anterior half densely covered with granules. Anterior margin of sternite 5 granulate near centre line; remaining sternites smooth, unarmed. Abdomen: tergites 2–4 each with strong rounded median process on elevated transverse ridge. Area anterior to median ridges smooth cuticle; remaining tergites densely covered with tubercles. Telson 1.2 times as broad as long, composed of eight large plates (the holotype has a pair of additional tiny plates bordering the central plate posteriorly, absent in the paratype); surfaces granular. Eyes: immobile; peduncle granular, eye spines absent. Cornea oval, about 0.6 times as wide as peduncle. Antennule: surface tuberculate; distolateral spines well developed, distinctly cristate; strongly cristate dorsolateral process; lateral margin slightly swollen. Antenna: surface tuberculate. Article 1 unarmed. Article 2 with short blunt distolateral spine. Articles 3–4 unarmed. Maxilliped 3: surface strongly tuberculate, sparsely setose. Basis with 3 or 4 irregular spines. Ischium with blunt distal spine on both extensor and flexor margins; crista dentata entirely and uniformly furnished with 17–20 triangular teeth (18–20 for holotype and 17 or 18 for paratype). Merus extensor margin with row of tubercles, with distal blunt spine; flexor margin tuberculate but with two prominent spines and a small blunt distal spine. Carpus, propodus and dactylus strongly tuberculate, otherwise unarmed. Pereopod 1 (cheliped): stout, slightly shorter than carapace (including rostrum); surface entirely covered with tubercles, with only a few setae along distal tips of fingers. Ischium with small distodorsal spine. Merus with prominent distomesial spine and small distolateral spine. Carpus 0.8 times as long as palm of propodus, no distinct distal spines. Propodal palm 1.7 times as long as high. Dactylus 0.9 times as long as palm; both fingers unarmed; opposable margins not gaping, occlusal margins denticulate; apices with interlocking teeth. Pereopods 2–4: surfaces strongly tuberculate, a few scattered setae. Pereopod 2 nearly reaching end of pereopod 1. Pereopods 2–4 meri slightly decreasing in length posteriorly with pereopod 4 merus 0.8 times as long as that of pereopod 2; pereopod 2 merus subequal in length to propodus; pereopod 3–4 meri approximately 0.8 times length of propodi; pereopod 2–4 meri and carpi dorsodistally with pronounced clusters of tubercles. Propodi 7 times as long as wide with a minute single movable distal flexor spine adjacent to a terminal tubercle. Dactyli straight, 0.4–0.5 times as long as propodi; flexor margins with eight or nine small movable spines along entire length (excluding corneous spine at tip). Epipods: present on pereopods 1–3. Colour in life. Anterior portion of body (anterior two-thirds of carapace, the chelipeds and anterior margins of the walking legs) deep orange, fading to a pale white in posterior portion of body; tips of rostrum and anterolateral spines, the median branchial prominence and cardiac grooves pale; ocular peduncles pale orange. Remarks. The type material contains the female holotype and a smaller male paratype. The male is considerably damaged with the anterior portion of the carapace, the eyes, rostrum and chelipeds missing. However, the sculpturing and ornamentation of the remaining carapace, abdomen and walking legs clearly match the characteristics of this new species and conform to the morphology of the holotype specimen. Munidopsis sculpo sp. nov. most closely resembles the group of species within the genus sharing a strongly tuberculate or rugose carapace. This includes M. sonne Baba, 1995, M. papanui Schnabel & Bruce, 2006 and M. bractea Ahyong, 2007 with which it also shares the distinctly dorsolaterally cristate antennule. Munidopsis sculpo can, however, be distinguished from all other species of Munidopsis by the combination of the distinct longitudinal median convex ridge that spans the entire gastric region, the strong cardiac process and a large blunt median processes each on abdominal tergites 2–4. Munidopsis sculpo was taken at two stations on the flanks of Forde Seamount on the Louisville Ridge (Fig. 1) between 1154–1280 m depth. The substrate in the immediate area is described by Clark et al. (in press) as a mix of bedrock ledges and outcrops with sand overlay and patches of coral rubble. Distribution. Known only from Forde Seamount on the Louisville Ridge; 1154–1280 m. Etymology. Sculpo is the first person singular of the Latin verb ‘to carve, chisel, engrave’, with reference to the elaborately sculptured carapace and abdomen; used here as a noun in apposition.Published as part of Schnabel, Kareen E. & Ahyong, Shane T., 2015, Two new species of Munidopsis (Crustacea: Anomura: Munidopsidae) from the Kermadec and Louisville ridge systems off New Zealand, pp. 241-251 in Zootaxa 3995 (1) on pages 246-249, DOI: 10.11646/zootaxa.3995.1.20, http://zenodo.org/record/23269
Figure 6 in REVIEW The use of integrative taxonomy in Octocorallia (Cnidaria: Anthozoa): a literature survey
Figure 6. Total author pool and number of taxonomic publications on octocorals per year (2000–2020).Published as part of Kessel, Gustav M., Alderslade, Philip, Bilewitch, Jaret P., Schnabel, Kareen E. & Gardner, Jonathan P. A., 2023, REVIEW The use of integrative taxonomy in Octocorallia (Cnidaria: Anthozoa): a literature survey, pp. 677-690 in Zoological Journal of the Linnean Society 198 (2) on page 684, DOI: 10.1093/zoolinnean/zlac099, http://zenodo.org/record/800487
Gesundheitskommunikation. Mehr als das Reden über Krankheit
Schnabel P-E, Bödeker M. Gesundheitskommunikation. Mehr als das Reden über Krankheit. Weinheim & Basel: Beltz Juventa; 2012
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