37,735 research outputs found
Scilla hakkariensis Firat & Yildirim 2020
No full textScilla hakkariensis FIrat & YIldIrIm, sp. nov. (Figs 1; 2) Scilla hakkariensis, sp. nov. is related to S. libanotica Speta and S. mischtschenkoana Grossh. It differs from both of them by its seeds without elaiosome (elaiosome is not distinct on the raphe). Also Scilla hakkariensis, sp. nov. is easily separate from related species by the following features: tepal 10-15 (12.8±1.3) mm long and filaments 6-8 (7.2±0.8) mm long (14-20 [17.7±1.7] mm and 8-11 [9.2±1.2] mm in S. mischtschenkoana); tepals whitish to very pale pinkish-blue, styles 4-7 (5.3±1.3) mm long (light blue, 7-10 [8.4±1.4] mm in S. libanotica). TYPE. — Turkey, Hakkari: Şemdinli district, Gelyaşîn region, on rock areas and Crataegus bushes opening, 890 m, 37°4’45”N, 44°25’46”E, 7.IV.2012, M. FIrat 28629 (holo-, VANF !; iso-, EGE!, HUB!, VANF!, and in the personal herbarium of the collector Herb. FIrat!.). POLLEN MORPHOLOGY. — The pollen grain is dark bluish-purple, heteropolar, monosulcate, pollen shape perprolate, equatorial diameter 22-25 µm, polar axis 57-73 µm, exine ornamentation perforate (Fig. 2). ETYMOLOGY. — The species epithet is derived from Hakkari province, where the new species was first discovered. VERNACULAR NAME. — Scilla hakkariensis, sp. nov., is called (Kurdish name) “Berfîne” by the local people of the Şemdinli district of Hakkari province. SUGGESTED CONSERVATIONAL STATUS. — Scilla hakkariensis, sp. nov., is represented with two discovered populations in Hakkari province. Total area of occupancy is smaller than 20 km 2 and observed individual numbers about 800 in total for these two populations. Following the criteria laid out by IUCN (2013), the plant is categorized as ‘Vulnerable’ (VU) D1 + 2, on account of its restricted distribution. No anthropogenic or grazing effects were observed on the population. Following the criteria laid out by the IUCN (2011), the plant is categorized as ‘Vulnerable’ (VU) D1, on account of its restricted distribution. DISTRIBUTION, HABITAT AND ECOLOGY. — Scilla hakkariensis, sp. nov., is endemic to eastern Anatolia, Turkey. It is found in the Şemdinli and Çukurca districts of the Hakkari province, that neighbours Iraq (Fig. 3). After a detailed search of some new populations, it might be discovered on the Iraqi border. This species belongs to the Iranian-Turanian floristic region and occurs in rocky areas and clearings of Crataegus monogyna Jacq. at altitudes ranging from 890-1070 m above sea level. The habitat of new species mostly included high calcareous soils (Fig. 1E, F). The common species growing in the near vicinity include Arum rupicola Boiss., Bellevalia kurdistanica Feinbrun, Crataegus monogyna Jacq., Corydalis rutifolia Boiss. & Buhse, Eranthis hyemalis Salisb., Gagea luteoides Stapf, Iris persica L., Iris reticulata M.Bieb. var. kurdica Rukšāns, Lamium amplexicaule L., Ranunculus kochii Ledeb., Veronica persica Poir., Viola odorata L. PARATYPES. — Turkey, C9 Hakkari: Çukurca district, Geliya Tiyar, on rocky areas and rock crevices, 1070 m, 37°17’53”N, 43°40’31”E, fl., 30.III.2012, M. FIrat 28603 ; Şemdinli district, Gelyaşîn region, rocky areas and Crataegus crevices 890 m, 37°4’45”N, 44°25’46”E, fr., 17.IV.2014, M. FIrat 30711. ADDITIONAL SPECIMENS. — Scilla ingridae Speta: Turkey, Adana: Saimbeyli, Bozoğlan Dağ, Obruk Yayla, 1450 m, 13.IV.1957, Davis 26674 (ANK!, E[E00349355]!); Kahramanmaraş: AndIrIn, Cokak yukarIsI yayla yolu üzeri, dere kenarI, 1420 m, 18.IV.2012, H.YIldIrIm 2286 (EGE!); SüleymanlI, Berit DağI, Çimen yaylasI, 2500 m, 11.VI.1978, B.YIldIz 2040 (AIBU!); Göksun, Kaman DağI, 1800-2000 m, 20.VI.1981, B.YIldIz 3015 (HUB[HUB 34614]!); Kayseri: BakIr Dağ at Akoluk Yayla above Kisge, edge of snow, 2000 m, 29.VI.1952, Davis 19439 (E[E00349362]!); Niğde: Niğde, Aladağlar, Emli BoğazI, 10.IV.2012, H.YIldIrIm 2255, (EGE!); Torasan DağI (Aladağlar), kuzey yamaçlarI, c. 2800 m, 1970, P.Quézel (ANK!); Ala Dağ, South-west flank of DemirkazIk by ArpalIk Cave and all raund little DemirkazIk, screes by snow, 2400-2800 m, 27.VI.1963, E.Parry 171 (E[E00349361]!); in the Ala Dağ, on DemirkazIk, SW facing stony slope, very close to snow, 28.VIII.1965, G.W.D.Findlay 121 (E[E00349357]!). Scilla melaina Speta: Turkey, Gaziantep: NurdağI Geçidi, AslanlIbeli yukarIsI yamaçlar, 1026 m, 11.IV.2009, H.YIldIrIm 1516 (EGE!); Sofdağ, Akçaoba Köyü, 20.III.1981, A.Baytop 47071 (ISTE!); Hatay: İskenderun, Atik YaylasI üstü, 1045 m, 10.IV.2012, H.YIldIrIm 2253 (EGE!); Dörtyol, Kuzuculu, Keldaz çIkIşI, 521 m, 04.IV.2012, H.YIldIrIm 2250, (EGE!); Amanos, ÇardaklI yaylasI, c. 1400 m, 21.III.1989, N. Zeybek (IZEF[IZEF 2220]!); İskenderun, Soğukoluk üstü, KayalIk altlarI, 12.IV.1981, H. Malyer 899 (ANK!); Sofdağ’a bağlI Akçaoba köyü, 20.03.1981, I.Arslanyürek (ISTF[ISTF47071]!); Belen, Atik, 1000 m, 07.III.1970, T.Baytop 16472 (E[E00349351]!); Amanus Mts, SE of Dörtyol, lower foothills, rocky slopes in deciduous wood, 500 m, 01.IV.1966, J.M.Watson 665 (E[E00349350]!); Amanus Mts, KIzIldağ, slopes deep shade of Quercus scrub, 1600 m, 10.IV.1967, A.R.Mitchell 2617 (K!); Amanus Mts, KarlIk Tepe above Soğukoluk, hillside limestone, 1250 m, 03.IV.1967 M.J.Cheese 2502 (K!). Scilla mischtschenkoana Grossh.: Azerbaijan, Distr. Nachitshevan, in monte Sojuch supra oppidum Ordubad, 8000-9000 ft, Culta in sect. cauc., 29.V.1975, Grossheim (TBI[TBI1025600]!, E!). Armenia: Nachrespublica, prope st. viae ferr. Negrom, in calcareis, 29.IV.1933, T. Heidemann & L. Prilipko (W!). Scilla libanotica Speta: Lebanon: Hermon; sheltered earthy places un- der boulders, 12.IV.1959, O.Polunin 5241 (E!); Above Jezzine, ledges of shady rocks in Quercetum with Galanthus, 3300 ft, 14.III.1943, P.H.Davis 5405 (E!); N. of Jezzin, towards Beit ed Dine, open turf between limestone outcrops and pockets on limestone, 1070 m, 6.III.1966, J.C.Archibald 1071 (E!); Liban: M. Labillardière (G!); Jebel el-Hadid, 13.V.1882, 7.IV.1883, E. Peyron 1754 (G); Merj, 26.IV.1878, Post 265 (G-Boiss.!); Nebal Hadid, ad nives, V.1882, E. Peyron (G-BOISS.!); Antiliban: Quadi el Karn, III.1889, E. Peyron 942 (G!); Liban sup., III.1891, Michon (P[P02058194]!); Ain Zhalta, 9.IV.1934, P. Mouterde 3146 (P[P02058197]!); Barouk, III.1940, F. Louis (P[P02058193]!); Jebel Barouk, vers 1600 m, sous des broussailles près de cèdres, 16.III.1930, R. Gombault 830 (P[P02058196]!). DESCRIPTION Bulb 15-25 × 10-20 mm, subglobose to ovoid; outer tunic membranous, thin texture, pale brown, inner tunic purplish. Leaves 2-5(-7), 4-20 × 0.4-1.3 cm, green, linear, flat, shorter than inflorescence or sometimes equal. Scape 1-3, 3- 15 cm long, erect. Inflorescence 2-8 cm long; 1-6-flowered raceme. Bracts minute, triangular or oblong, c. 1 mm long, mostly 2-partite, whitish to slightly purplish. Pedicel 3-28 mm long in flower, 5-35 mm in fruit, erect to patent. Perianth whitish to very pale pinkish-blue, mostly pale blue at base of outer surface.Tepal 10-15 × 2-5 mm; midrib concolorous or slightly darker outside, mostly pale bluish. Anthers 2-2.5 × 0.7-1 mm, dark blue; filaments 6-8 mm long, white; pollen grains dark blue to yellowish green. Ovary 2-2.5 × 2-2.5 mm, globose, yellowish-green, 3-locular; style 4-7 mm long, terete, rarely geniculate, whitish; stigma capitate. Capsule 7-10 mm wide, sub-globose. Seeds globose, c. 2 mm long, black; surface micropapillate; without ant strophiole or elaiosome.Published as part of Firat, Mehmet & Yildirim, Hasan, 2020, Scilla hakkariensis, sp. nov. (Asparagaceae: Scilloideae): a new species of Scilla L. from Hakkari (eastern Anatolia), pp. 89-94 in Adansonia 42 (2) on pages 90-93, DOI: 10.5252/adansonia2020v42a2, http://zenodo.org/record/387730
Onosma satensis Firat & Binzet 2021, sp. nov.
No full textOnosma satensis Fırat & Binzet, sp. nov. (Figs 1-3) Onosma satensis sp. nov. is related to O. polioxantha Rech. f., but it differs from O. polioxantha by with patent setose and short hairs stem indumentum (not adpressed setose and puberulous in O. polioxantha), sterile shoots leaves and cauline leaves are navicular (not navicular in O. polioxantha), cauline leaves 120 × - 16 mm (20-40 × 5-9 mm in O. polioxantha), leaves are distinct reticulate (not reticulate in O. polioxantha), pedicel 4-5 mm in flowering and - 17 mm in fruit (3-4 mm in O. polioxantha), calyx 13-17 mm in flowering and - 27 mm in fruit (12 mm in flower and - 14 mm in fruit in O. polioxantha), Corolla 20-22 mm and densely patent short setulose outside and reticulate (14-17 mm, puberulous and lobes ciliate in O. polioxantha), nutlet 4.5-5 × 4-4.5 mm (2.5-3 mm in O. polioxantha). TYPE. — Turkey. C9 Hakkâri, Yüksekova Province, Sat mountains, Oremar region, Zozana Herduav plateau, rocky, stone, and calcareous areas, 1376 m, 37°22’41”N, 44°10’08”E, 7.VII.2018, M. FIrat 34040 (holo-, VANF; iso- ANK, in the personal herbarium of the first author [Herb. M. Fırat] and the Herbarium of Mersin University). ETYMOLOGY. — The specific epithet derives from the name of Sat Mountain (Yüksekova / Hakkari) where the type specimens were collected (locus classicus). PHENOLOGY. — Flowering from June to July and fruiting from July to August. HABITAT AND ECOLOGY. — The species is a perennial that grows on rocky areas, nearly melting snow at an altitude of 1300-2000 m (Fig. 3) with plants such as Prangos ferulacea (L.) Lindl., Prangos pabularia Lindl., Campanula persica A. DC., Pimpinella kotschyana Boiss., Allium microspatum Ekberg, Allium anacoleum Hand. -Mazz., Scorzonera latifolia (Fisch.& C.A.Mey.)DC., Hypericum scabrum L., Stachys kurdica Boiss.& Hohen., Cruciata taurica (Pall. ex Willd.) Ehrend., Rhabdosciadium anatolyi Lyskov & Kljuykov, Psathyrostachys fragilis (Boiss.) Nevski, Nonea anchusoides Boiss.& Buhse and Amygdalus carduchorum Bornm. DISTRIBUTION AND SITE CONDITIONS. — Onosma satensis sp. nov. only occurs on the Sat Mountains (Yüksekova/ Hakkâri) and can be considered as endemic to eastern Anatolia (Fig. 4). It represents an Irano-Turanian mountain element. Future studies will assess its likely distribution in the neighbouring northern Iraq and Iran. CONSERVATION STATUS. — The distribution area of Onosma satensis sp. nov. is less than 50 km 2. The species was collected from one locality in which c. 1000 individuals were counted. Some anthropogenic and grazing effects were observed on the population. Based on the above data and observations, the IUCN (2016) red list category of Onosma satensis sp. nov. is suggested as “Critically Endangered” (CR), B1b (i, ii, iii). VERNACULAR NAME. — Onosma satensis sp. nov. is called (Kurdish name) “Mejmejok” by the local people of the Hakkâri /Yüksekova Province. Onosma species are known by the local people under many names in Kurdish; e.g. “Şîranok”, “Hewajo”, “Dimkirî”, “Dîvankoşk”, “Gorisazer”,“Mijmijok”, “Êmzik”, “Memije”, “Giyaderman” and in Turkish; e.g. “Emzik otu”, “Havaciva”, “Emcek”, “Tavşan gözü”, “Sincar” (Fırat 2013). SPECIMENS EXAMINED. — Onosma satensis sp. nov.: Turkey. C9 Hakkâri, Yüksekova Province, Sat mountains, Dula Vare Mili region, Carte hill, nearly melting snow, 1935 m, 37°24’11”N, 44°06’33”E, 31.VII.2019, M. FIrat 35150 (in flower) (para-, VANF, HUB and in the personal herbarium of the first author [Herb. M. Fırat]); Oremar region, Zozana Herduav plateau, rocky, stone, and calcareous areas, 1416 m, 37°22’40”N, 44°10’05”E, 11.VII.2020, M. FIrat 35648 (in flower) (in the personal herbarium of the first author [Herb. M. Fırat]); 17.VIII.2020, M. FIrat 35690 (in fruit) (in the personal herbarium of the first author [Herb. M. Fırat]). Onosma polioxantha: Turkey. SE Anatolia, A/B3 Eskişehir, Mihaliççik to Sariyar baraji, 900 m, D[D.37219]!; B7 Elaziğ, 12 km E of Elaziğ, 1160 m, M.Zohary 3764 (!); B7 Erzincan, Kemaliye, Sırakonak, Killik Cave path, Üstüncan Spring around, rocky and steppe, 1250- 1400 m, 05.VI.2009 (Mersin; Binzet 200925); B8 Erzurum, 30 km W of Erzurum, 1780 m, M. Zohary 67334 (!); B9 Bitlis, 2 km from Bitlis, 1630 m, Hub.-Mor. 13528 (!); B9 Bitlis, Kurdistan, Bitlis, 1400 m. [8.VI.]1939, Frödin 149 (holo-, W) (Herb. No: 10222); B9 Bitlis, 10 km south of Bitlis, Araptal, Waldrand, 1500 m, 17.VI.1984 (Herb. No: 1991-07873); B9 Van, 24 km from Timar (Canik) to Van, 1750 m, D. 44191 (!); C6 Maraş, Maraş to Göksun road, 1400 m, Stn. & Hend. 5551 (!); C9 Mardin, foot of Kasrik gorge, 9 km from Cizre, 350 m, D. 42667 (!); Hakkari, Çukurca, 1200 m, D. 44824 (!); C10 Hakkari, 19 km from Bacirge to Yüksekova, 2150 m, D. 45182 (!); C9 Hakkari, Çimenli, Köyü, Şiva İros around, slopes, 1700 m, 15.VII.2009 (Mersin; Binzet 200920). DESCRIPTION Perennial, rootstock with long slender branches, root bark easily separated. Stems numerous, to 50 cm and to 4 mm diameter, erect to ascending, unbranched, patent setose and short hairs. Usually with a number of sterile shoots at flowering and anthesis time.Sterile shoots to 25 cm.Steril shoot leaves navicular,broadly oblanceolate, petiolate -20 × - 1.2 cm, petiole long 4-6 cm, patent setose 1-1.5 mm, with tuberculate and short hairs on upper surface and patent stose with ± tuberculate and short hairs on below surfaces sparsely, acute, margine straight. Basal leaves similar to sterile shoots leaves. Cauline leaves navicular -12 × - 1.6 cm, oblanceolate to oblong lower petiolate, upper sesile and smaller in size, distinctly reticulate, covered with patent setae (- 1 mm) above and on beneath and short hairy on both surfaces, acute, margines straight. Bracts few, -5 × - 0.9 cm, smaller in size to upper, lanceolate to linear, covered with patent setose ± tuberculate on both surfaces. Inflorescence of 1-3 lax cymes, elongating to 15 cm after flowering. Pedicels 4-5 mm in flower, elongating to c. 17 mm in fruit, covered with patent setose tubercles and short hairs. Calyx 13-17 mm in flower, to 27 mm in fruit, lobes linear, linear-lanceolate, base accrescent and becoming gibbous, covered with patent setose ± tubercles and short hairy on outside and sparsely patent setose and short hairs inside. Corolla golden yellow, 20-22 × 4-5×mm at widest point below lobes (c. 7-8 mm wide when pressed), campanulate, campanulate-cylindrical, densely patent short setulose outside and reticulate, lobes 5, reflexed, 2 × 2.5 mm, widely triangular, acute, annulus glabrous. Anthers included or sterile tips exerted, linear, c. 8 mm, sagittate, connate at base. Filaments c. 3 mm. Style 4-5 mm protruding outside the corolla limb, stigma small, distinctly bilobed. Nutlets 4.5-5 × 4-4.5 mm, broadly ovate, beaked, shiny cream and brown variagated, ventrally and ± doresally keeled, acuminate. Pollen grains heteropolar, subprolate P/E (Polar axis/Equatorial axis) ratio 1.17. Indumentum The indumentum is a very important character in Onosma systematic, and is illustrated for O. satensis sp. nov. (Fig. 5). Palynology Pollen grains are heteropolar, trisyncolporate and subprolate P/E (Polar axis length / Equatorial axis length) ratio 1.17. Exine ornamentation on mesocolpium of the grain is ± insular. The insulae have free scabrae and the scabrae are widely spaced. The number of scabrae in each insulae ranges from 5 to 20. The outline of pollen grains is circular and triangular. The other main palynological characters and SEM micrographs of O. satensis sp. nov. are presented in (Table 1 and Fig. 6). Nutlet morphology Nutlet ornamentation is rugose type, characterised by the epidermal cells of the nutlet surface having small or fine wrinkles (Fig. 7). DISCUSSION Onosma taxa are distributed throughout Turkey, but are particularly common and diverse in Anatolian steppes and within the boreal to subalpine belts of the Taurus range (Binzet & Eren 2018). In recent years, many new Onosma taxa have been defined, especially in Iran (Almasi & Ranjbar 2015; Dehshiri 2018; Mehrabian & Mozaffarian 2018). Since they spread in the nearby geography, it was compared with the new species defined from Iran, but in this study, O. satensis sp. nov., defined as a new species, was found to be different from these species. Together with O. satensis sp. nov., the total number of Onosma species known from Turkey increases to 103. Sixty of those are endemic (endemism level is 58.25%). Onosma satensis sp. nov. belongs to subsect. Haplotricha (Boiss.) Gürke and grows on rocky, stony, and calcareous areas. It is an element belonging to the Irano-Turanian phytogeographical region. It shows some affinity to O. polioxantha, which is in the same subsection (Figs 1; 2; 4), and can be easily distinguished from O. polioxantha by its sterile shoots, patent setose and short hairs of stem indumentum, sterile shoots leaves and cauline leaves are navicular, cauline leaves 120 × - 16 mm, leaves are distinctly reticulate, pedisel 4-5 mm in flowering time and - 17 mm in fruiting time, calyx 13-17 mm in flowering time and - 27 mm in fruiting time, corolla 20-22 mm, densely patent short setulose outside and reticulate, nutlets 4.5-5 × 4-4.5 mm, broadly ovate, beaked, shine cream and brown variaegated, ventrally and ± dorsally keeled, acuminate, ornamentation is rugose type, characterised by the epidermal cells of the nutlet surface having small or fine wrinkles. The other differences between O. satensis sp. nov. and O. polioxantha are listed in Table 2. The necessary detailed key to O. satensis sp. nov. and O. polioxantha is proposed below. The characters given in the key mainly consider the type specimens studied as well as the relevant taxonomic literature (Riedl 1978). KEY TO ONOSMA SATENSIS SP. NOV. AND O. POLIOXANTHA RECH. F. 1. Cauline leaves 20-40 × 5-9 mm; calyx 12 mm in flower, to 14 mm in fruit; corolla 14-17 mm; nutlets 2.5-3 mm................................................................................................................................... O. polioxantha Rech. f. — Cauline leaves -120 × - 16 mm; calyx 13-17 mm in flower, to 27 mm in fruit; corolla 20-22 mm; nutlets 4.5-5 × 4-4.5 mm.................................................................................................. O. satensis Fırat & Binzet, sp. nov.Published as part of Firat, Mehmet & Binzet, Rıza, 2021, Onosma satensis sp. nov. (Boraginaceae: Lithospermeae), a new species from Hakkari (eastern Anatolia, Turkey), pp. 185-195 in Adansonia (3) (3) 43 (16) on pages 188-193, DOI: 10.5252/adansonia2021v43a16, http://zenodo.org/record/550370
K-theory for group C*-algebras
No full textThese notes are based on a lecture course given by the first author in the Sedano Winter School on K-theory held in Sedano, Spain, on January 22-27th of 2007. They aim at introducing K-theory of C*-algebras, equivariant K-homology and KK-theory in the context of the Baum-Connes conjectur
Search for eta(c) decays into pi pi and K(K)over-bar
No full textUsing 58 million J/psi) events taken with the BESII detector, a search for eta(c) CP violating decays into pi pi and K (K) over bar has been performed. No clear 77, signal is observed, and upper limits for B(eta(c) -> pi pi) and B(eta(c) -> K (K) over bar) are given at the 90% confidence level, B(J/psi -> gamma eta(c)) center dot B(eta(c) -> pi(+)pi(-)) < 1.1 x 10(-5), B(J/psi -> gamma eta(c)) center dot B(eta(c) -> pi(0)pi(0)) < 0.71 x 10(-5), B(J/psi -> gamma(eta c)) center dot B(eta(c) -> K+K-) < 0.96 x 10(-5), and B(J/psi -> gamma eta(c)) center dot B(eta(c) (KSKS0)-K-0) < 0.53 x 10(-5).Physics, Particles & FieldsSCI(E)1ARTICLE2337-3414
Measurement of the ratio of branching fractions B(B0→K∗0γ )/B(B0s→φγ ) and the directCP asymmetry inB 0→K∗0γ
No full textThe ratio of branching fractions of the radiative B decays B0→K⁎0γ and B0s→ϕγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of s√=7TeV. The value obtained is
B(B0→K⁎0γ)B(B0s→ϕγ)=1.23±0.06(stat.)±0.04(syst.)±0.10(fs/fd),
where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the third is associated with the ratio of fragmentation fractions fs/fd. Using the world average value for B(B0→K⁎0γ), the branching fraction B(B0s→ϕγ) is measured to be (3.5±0.4)×10−5.
The direct CP asymmetry in B0→K⁎0γ decays has also been measured with the same data and found to be
ACP(B0→K⁎0γ)=(0.8±1.7(stat.)±0.9(syst.))%.
Both measurements are the most precise to date and are in agreement with the previous experimental results and theoretical expectations
Branching fraction and CP asymmetry of the decays B+→K0Sπ+ and B+→K0SK+
No full textAn analysis of B+ → K0
Sπ+ and B+ → K0
S K+ decays is performed with the LHCb experiment. The pp
collision data used correspond to integrated luminosities of 1 fb−1 and 2 fb−1 collected at centre-ofmass
energies of
√
s = 7 TeV and
√
s = 8 TeV, respectively. The ratio of branching fractions and the
direct CP asymmetries are measured to be B(B+ → K0
S K+
)/B(B+ → K0
Sπ+
) = 0.064 ± 0.009 (stat.) ±
0.004 (syst.), ACP(B+ → K0
Sπ+
) = −0.022 ± 0.025 (stat.) ± 0.010 (syst.) and ACP(B+ → K0
S K+
) =
−0.21 ± 0.14 (stat.) ± 0.01 (syst.). The data sample taken at
√
s = 7 TeV is used to search for
B+
c
→ K0
S K+ decays and results in the upper limit ( fc · B(B+
c
→ K0
S K+
))/( fu · B(B+ → K0
Sπ+
)) <
5.8 × 10−2 at 90% confidence level, where fc and fu denote the hadronisation fractions of a ¯b
quark
into a B+
c or a B+ meson, respectively
FIGURE 2 in Palynological observations on the genus Gundelia L. (Asteraceae) growing in Turkey
No full textFIGURE 2. Light microscopy micrographs of pollen grains (polar and equatorial views). Group I. a) Gundelia anatolica, b) G. rosea, c) G. tournefortii. Group II. d) G. siirtica, e) G. armeniaca, f) G. purpurascens, g) G. cilicica, h) G. mesopotamica, i) G. armata, j) G. dersim, k) G. asperrima, l) G. glabra, m) G. munzuriensis, n) G. tournefortii var. tenuisecta. Group III. o) G. colemerikensis, p) G. komagenensis, r) G. vitekii (Scale bar: 20 µm).Published as part of Firat, Mehmet & Selvi, Selami, 2021, Palynological observations on the genus Gundelia L. (Asteraceae) growing in Turkey, pp. 51-66 in Phytotaxa 502 (1) on page 55, DOI: 10.11646/phytotaxa.502.1.3, http://zenodo.org/record/542487
Secondary analysis of teaching methods in introductory physics: A 50 k-student study
No full textCitation: Von Korff, J., Archibeque, B., Gomez, K. A., Heckendorf, T., McKagan, S. B., Sayre, E. C., . . . Sorell, L. (2016). Secondary analysis of teaching methods in introductory physics: A 50 k-student study. American Journal of Physics, 84(12), 969-974. doi:10.1119/1.4964354Physics education researchers have developed many evidence-based instructional strategies to enhance conceptual learning of students in introductory physics courses. These strategies have historically been tested using assessments such as the Force Concept Inventory (FCI) and the Force and Motion Conceptual Evaluation (FMCE). We have performed a review and analysis of FCI and FMCE data published between 1995 and 2014. We confirm previous findings that interactive engagement teaching techniques are significantly more likely to produce high student learning gains than traditional lecture-based instruction. We also establish that interactive engagement instruction works in many settings, including those with students having a high and low level of prior knowledge, at liberal arts and research universities, and enrolled in both small and large classes. (C) 2016 Author(s)
First observation of the decay Bs0→K*0K*0
No full textThe first observation of the decay B0s→K∗0K∗0 is reported using 35 pb−1 of data collected by LHCb in proton–proton collisions at a centre-of-mass energy of 7 TeV. A total of 49.8±7.5 B0s→(K+π−)(K−π+) events are observed within ±50 MeV/c2 of the B0s mass and 746 MeV/c2 < mKπ < 1046 MeV/c2, mostly coming from a resonant B0s→K∗0K∗0 signal. The branching fraction and the CP-averaged K∗0 longitudinal polarization fraction are measured to be B(B0s→K∗0K∗0)=(2.81±0.46(stat.)±0.45(syst.)±0.34(fs/ fd))×10−5 and fL =0.31±0.12(stat.)±0.04(syst.)
FIGURE 3 in Palynological observations on the genus Gundelia L. (Asteraceae) growing in Turkey
No full textFIGURE 3. Light microscopy micrographs of pollen grains (Acetolysis method). Group I. a) Gundelia anatolica, b) G. rosea, c) G. tournefortii. Group II. d) G. siirtica, e) G. armeniaca, f) G. purpurascens, g) G. cilicica, h) G. mesopotamica, i) G. armata, j) G. dersim, k) G. asperrima, l) G. glabra, m) G. munzuriensis, n) G. tournefortii var. tenuisecta. Group III. o) G. colemerikensis, p) G. komagenensis, r) G. vitekii (Scale bar: 10 µm).Published as part of Firat, Mehmet & Selvi, Selami, 2021, Palynological observations on the genus Gundelia L. (Asteraceae) growing in Turkey, pp. 51-66 in Phytotaxa 502 (1) on page 55, DOI: 10.11646/phytotaxa.502.1.3, http://zenodo.org/record/542487
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