11,653 research outputs found
Rede uitgesproken op 17 september 1956 ter gelegenheid van de erepromotie van Dr. Th. von Karman door de promotor Dr. C.B. Biezeno
No full textRede uitgesproken door prof. C.B. Biezeno ter gelegenheid van de erepromotie aan de TH Delft van dr. Theodore von Karman.Precision and Microsystems EngineeringMechanical, Maritime and Materials Engineerin
Pharmaceutische Botanik. (Hälfte 2)
No full textElektronische Reproduktion von: Pharmaceutische Botanik / von Philipp Lorenz Geiger. - 2. Aufl. / neu bearb. von Th. Fr. L. Nees von Esenbeck und Joh. Heinrich Dierbach. - Heidelberg [u.a.] : Winter [u.a.], 1840. - S. 1265 - 2023. - (Handbuch der Pharmacie : zum Gebrauche bei Vorlesungen und zum Selbstunterrichte für Ärzte, Apotheker und Drogisten / von Philipp Lorenz Geiger. Bd. 2 ; Abt. 2., Hälfte 2)
Standort: Universität Marburg, Universitätsbibliothek. -
Signatur: 085 8 2023/01175. -
Digitalisiert 202
Pharmaceutische Botanik : Ergänzungsheft
No full textElektronische Reproduktion von: Pharmaceutische Botanik : Ergänzungsheft / von Philipp Lorenz Geiger. - 2. Aufl. / neu bearb. von Th. Fr. L. nees von Esenbeck, Joh. Heinrich Dierbach und Clamor Marquart. - Heidelberg [u.a.] : Winter [u.a.], 1843. - LVI, 347 S. - (Handbuch der Pharmacie : zum Gebrauche bei Vorlesungen und zum Selbstunterrichte für Ärzte, Apotheker und Drogisten / von Philipp Lorenz Geiger ; Bd. 2 ; Ergh.) . -
Standort: Universität Marburg, Universitätsbibliothek. -
Signatur: 085 8 2023/01231. -
Digitalisiert 202
Prof. Th. W. Adorno and the author Hans Erich Nossack.
No full textProf. Th. W. Adorno and the author Hans Erich Nossack at a reception of Insel Verlag, Buchmesse Frankfurt 1966LB
Author, publisher and bookseller : a tripartite synergy in Nigerian book industry
No full textThis work is about the roles of Author, Publisher and Bookseller in Book development in
Nigeria. The paper started by delving into the history of Book Publishing in Nigeria after
which it proceeded by defining who an author, a publisher, and a bookseller is and
expatiated on the indispensable roles of these key actors in Nigerian Book Industry and in
the emerging Information Society. Furthermore, the various constraints to book
development were identified while the paper advised on how the Book Industry can be
further promoted in Nigeria. However, the paper concluded and made recommendations
on how the Book sector can help in enhancing scholarship in the country
Recognition of non-Milankovitch sea-level highstands at 185 and 343 thousand years ago from U-Th dating of Bahamas sediment
No full textThirty-one new bulk-sediment U-Th dates are presented, together with an improved δO stratigraphy, for ODP Site 1008A on the slopes of the Bahamas Banks. These ages supplement and extend those from previous studies and provide constraints on the timing of sea-level highstands associated with marine isotope stages (MIS) 7 and 9. Ages are screened for reliability based on their initial U and Th isotope ratios, and on the aragonite fraction of the sediment. Twelve 'reliable' dates for MIS 7 suggest that its start is concordant with that predicted if climate is forced by northern-hemisphere summer insolation following the theory of Milankovitch. But U-Th and δO data indicate the presence of an additional highstand which post-dates the expected end of MIS 7 by up to 10 ka. This event is also seen in coral reconstructions of sea-level. It suggests that sea-level is not responding in any simple way to northern-hemisphere summer insolation, and that tuned chronologies which make such an assumption are in error by ≈10 ka at this time. U-Th dates for MIS 9 also suggest a potential mismatch between the actual timing of sea-level and that predicted by simple mid-latitude northern-hemisphere forcing. Four dates are earlier than that predicted for the start of MIS 9. Although the most extreme of these dates may not be reliable (based on the low-aragonite content of the sediment) the other three appear robust and suggest that full MIS 9 interglacial conditions were established at 343 ka. This is ≈8 ka prior to the date expected if this warm period were driven by northern-hemisphere summer insolation
Th. Lipps: Die Quantität in psychischen Gesammtvorgängen. Sitzungsberichte der philos.- philol. und der hist. Classe der Kgl. bayer. Akad. der Wiss. (3), 349-421.1899
No full textTH. LIPPS: DIE QUANTITÄT IN PSYCHISCHEN GESAMMTVORGÄNGEN. SITZUNGSBERICHTE DER PHILOS.- PHILOL. UND DER HIST. CLASSE DER KGL. BAYER. AKAD. DER WISS. (3), 349-421.1899
Zeitschrift für Psychologie und Physiologie der Sinnesorgane (-)
Zeitschrift für Psychologie und Physiologie der Sinnesorgane (24) (a0001)
Th. Lipps: Die Quantität in psychischen Gesammtvorgängen. Sitzungsberichte der philos.- philol. und der hist. Classe der Kgl. bayer. Akad. der Wiss. (3), 349-421.1899 (24) (p0386
Oxynoemacheilus shehabi Freyhof & Geiger 2021, new species
No full textOxynoemacheilus shehabi, new species (Figs 2–6) Holotype. ZFMK ICH 124181, 46.3 mm SL; Syria: Orontes at Al Qusayr, 34.5086 36.5389. Paratypes. ZFMK ICH-125126-28, 3, 41.5–47.6 mm SL; same data as holotype. Material used in molecular genetic analysis. FSJF DNA-1227; same data as holotype (GenBank accession numbers: KJ553795, KJ554073) Diagnosis. Oxynoemacheilus shehabi is distinguished from O. hamwii and O. namiri, the two other species of Oxynoemacheilus known from the Orontes, by possessing a very slender caudal peduncle (caudal-peduncle depth 1.8–2.4 times in its length vs. 1.2–1.4 in O. namiri; 1.4–1.9 in O. hamwii), a suborbital groove in male (vs. absent in O. namiri), and a complete lateral line terminating on the caudal-fin base (vs. incomplete, terminating behind the dorsal-fin base, or on the caudal-fin base in some individuals in O. namiri). It is further distinguished from O. hamwii by possessing two, usually indistinct, black blotches or spots at the caudal-fin base (vs. one bold central blotch or no bold black blotch on the caudal-fin base, often an irregularly-shaped black bar at the caudal-fin base), and the flank with 5–7 irregularly shaped bars (vs. flank in juveniles with a midlateral series of horizontally elongate blotches, adults with a brown marbled pattern). See below to distinguish O. shehabi from other species of the O. persa species group. Description. See Figures 2–6 for general appearance and Table 2 for morphometric data. Small-sized and slender species. Body deepest at about midline between nape and dorsal-fin origin. Body width greatest at pectoral-fin base. Section of head roundish, flattened on ventral surface, slightly convex in interorbital space, convex on snout. Snout pointed. Caudal peduncle compressed laterally, 1.8–2.4 times longer than deep. Pelvic axillary lobe present, its tip attached to flank. Pelvic-fin origin below first or second branched dorsal-fin ray. Anal-fin origin at about vertical of midline between dorsal and caudal-fin origins. Pectoral fin reaching to approximately 70–90% of distance from pectoral-fin origin to pelvic-fin origin. Pelvic fin reaching anus, or reaching to genital papillae; reaching vertical of tip of last dorsal-fin ray or slightly anterior to that point. Anus about 50–70% of an eye diameter anterior to anal-fin origin. Anal fin not reaching caudal-fin base. No dorsal or ventral adipose crest on caudal peduncle. Largest known individual 48 mm SL, expected to grow larger. Dorsal fin with 8½ branched rays, outer margin concave. Anal fin with 5½ branched rays, outer margin straight or slightly concave. Pectoral fin with 9 branched rays, outer margin straight. Pelvic fin with 7 branched rays, outer margin straight or slightly convex. Caudal fin deeply emarginate with 9+8 branched rays. Flank and back covered by cycloid scales, scales irregularly set on back. Lateral line complete, terminating at caudal-fin base. Anterior nostril opening at end of a low, ovoid, flap-like tube. Posterior tip of anterior nostril overlapping posterior nostril when folded backwards. One central pore and one lateral pore on each side of supratemporal head canal, 3–4 + 8–10 pores in infraorbital canal, 6–7 pores in supraorbital canal, and 9–10 pores in mandibular canal. A long suborbital groove in male. Mouth small, arched. Lips thick without furrows, lower lip thicker than upper lip. A median interruption in lower lip. Upper lip with a small and short median incision in one individual, absent in others. Processus dentiformis narrow and rounded. Lower jaw rounded, without median notch. Barbels long; inner rostral barbel reaching base of maxillary barbel, outer reaching to or slightly beyond anterior margin of eye. Maxillary barbel reaching beyond vertical through posterior margin of eye, almost to posterior eye-margin. Coloration. Body with yellowish or pale brown background and dark-brown pattern in live and preserved individuals. Preserved individuals with a dark-grey, narrow inner-axial stripe, absent in life. Dorsal head and upper part of cheek brown, without pattern. Ventral surface of head yellowish without pattern. Flank with 5–7 dark-brown bars, thinner than interspaces. Flank bars irregularly shaped and set, extending to middorsal saddles and meeting contralaterals. Shape of flank bars usually interrupted in shape and size at lateral midline, dissociated in blotches on predorsal part of flank in two individuals. Back with 1–2 predorsal saddles, one saddle at dorsal-fin origin and one at posterior dorsal-fin base, and 2–3 saddles behind dorsal fin, all saddles thinner than interspaces. Flank above lateral midline with short, very narrow, brown lines, often oriented along myosepts. One dark-brown blotch at lower caudal-fin base, a second, much smaller blotch at uppermost caudal-fin base, both indistinct in preserved individuals. Posteriormost upper and lowermost caudal peduncle with a pale yellowish, unpigmented blotch. Dorsal and pectoral fins with many, small brown blotches on rays, forming 1–3 narrow bands. Caudal fin with many small brown blotches on rays, forming 3–7 bands. Pectoral, anal and pelvic fins with dark-brown blotches on rays; anal fin hyaline or with few blotches. Distribution. Oxynoemacheilus shehabi was collected from the upper Orontes in Syria. As the species has not been found in the lower Orontes in Turkey, it is expected to be endemic to the southern headwaters of this river. Etymology. The species is named for Adwan Shehab, one of Syria’s most active and renowned zoologists, who hosted and logistically enabled our team during our field-work in Syria in 2008, when the type material of the species was collected. On 16 th of February 2015, Adwan was killed in the streets of Dara’a as a result of the still ongoing bloody conflict in Syria (Amr 2015). A noun in genitive. Remarks. Oxynoemacheilus shehabi is distinguished from other species of Oxynoemacheilus in the O. persa species group by a combination of characters, none of them unique. It belongs to a group of species (O. argyrogramma, O. euphraticus, O. hanae, O. karunensis, O. kurdistanicus, O. marunensis, O. persa, and O. “ seyhanicola ”) in which males have a suborbital groove (vs. absent in O. chomanicus, O. kentritensis, O. zagrosensis, and O. zarzianus) and a deeply emarginate or forked caudal fin (vs. slightly emarginate or truncate in O. chomanicus, O. kentritensis, O. zagrosensis, and O. zarzianus). The new species is related to a fish identified as O. seyhanicola from the lower Seyhan. This species was described based on a single individual diagnosed by lacking scales, having a long and pointed snout and a series of large, midlateral blotches (Erk’akan et al. 2007). Geiger et al. (2014) published sequences of two groups of fishes identified as O. seyhanicola, which were very different to each other, both also shown in Fig. 1. Both populations have scales on the flank but we would need to re-examine the type of O. seyhanicola to verify that there are really no scales. Obviously two species are involved in O. seyhanicola. One of these is related to O. shehabi, while the other is related to O. evreni from the Ceyhan and O. hamwii from the Orontes. We distinguish O. shehabi from those O. “ seyhanicola ” (Fig. 7) being closely related to O. shehabi and not from those related to O. evreni and O. hamwii. Further research is needed to resolve the identity of O. seyhanicola and we cannot fully exclude that a third species might be involved. Oxynoemacheilus shehabi is distinguished from O. persa and O. “ seyhanicola ” by possessing 5–7 bars, irregularly shaped and set, extending to the middorsal saddles and meeting the contralaterals (vs. flank with a midlateral series of large blotches, disconnected from saddles on the back in O. “ seyhanicola ” and most individuals of O. persa; blotches sometimes vertically elongated in O. persa, some individuals with 3–5 bars on flank behind the dorsal-fin base), two, usually indistinct, black blotches or spots at caudal-fin base (vs. two very large blotches, usually fused to an irregularly shaped bar in O. persa); a well-developed pelvic axillary lobe fully attached to the body (vs. no lobe or lobe rudimentary in O. persa); caudal peduncle 1.8–2.4 times longer than deep (vs. 1.5–1.8 in O. “ seyhanicola ”). The new species is distinguished from O. argyrogramma and O. marunensis by possessing 5–7 irregularly shaped bars on the flank, dissociated into large blotches on the anterior flank in a few individuals (vs. marbled or mottled colour pattern on flank in O. argyrogramma, mottled with a midlateral series of blotches in O. marunensis). Further, the caudal peduncle is more slender in O. shehabi (caudal peduncle depth 1.8–2.4 times longer than deep vs. 1.5–1.8 in O. argyrogramma, 1.4–1.9 in O. marunensis). The two black blotches or spots on the caudal-fin base are small and indistinct in O. shehabi (vs. prominent in life and preserved fishes in O. argyrogramma and O. marunensis) and it has no, or only a very short, incision in the upper lip (vs. a deep median incision in O. argyrogramma). Oxynoemacheilus shehabi is distinguished also from O. euphraticus and O. kurdistanicus by possessing two, usually indistinct, black blotches or spots at the caudal-fin base (vs. very prominent in live and preserved fishes), no, or only a very shallow incision in the upper lip (vs. a deep median incision), and possessing 5–7 irregularly shaped bars on flank (vs. flank pattern irregularly mottled or marbled on flank in front of dorsal fin and with more than 7 bars on the flank behind the dorsal-fin base in O. euphraticus). Oxynoemacheilus shehabi is further distinguished from O. kurdistanicus by having a more slender caudal peduncle (caudal-peduncle depth 8–9% SL vs. 9–11). It is distinguished from O. hanae by possessing 5–7 irregularly shaped bars on the flank (vs. a midlateral series of dark-brown roundish or ovoid blotches), confluent with saddles on the back (vs. blotches on the flank not confluent with saddles on the back); mid-lateral blotches reaching down to the ventral side of the caudal peduncle (vs. not reaching), and caudal peduncle 1.8–2.4 times longer than deep (vs. 1.4–1.8). The new species is distinguished from O. karunensis by possessing a well-developed pelvic axillary lobe, fully attached to the body (vs. lobe absent or rudimentary, shallow and knob-shaped); 5–7 bars on flank (vs. a series of dark-brown roundish or ovoid blotches along mid-lateral flank), bars reaching down to ventral side of caudal peduncle (vs. not reaching), and flank bars confluent with saddles on back (vs. mid-lateral blotches usually not confluent with saddles on back, but often overlapping).Published as part of Freyhof, Jörg & Geiger, Matthias F., 2021, Oxynoemacheilus shehabi, a new nemacheilid loach from the upper Orontes in southern Syria (Teleostei: Nemacheilidae), pp. 571-583 in Zootaxa 4908 (4) on pages 573-581, DOI: 10.11646/zootaxa.4908.4.9, http://zenodo.org/record/444737
Dissipative Range Scaling of Higher Order Structure Functions for Velocity and Passive Scalars
No full textDifferently to Kolmogorov's second similarity hypothesis, we find that the 2n-th order velocity and scalar structure functions scale with n-th order moment of the energy dissipation and the scalar dissipation, respectively. The origins of this scaling are analyzed by the transport equations of the fourth order velocity and scalar increment moments and by direct numerical simulations
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