175,690 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
Cerrahi̇ Olmayan Peri̇odontal Tedavi̇ni̇n Evre II Ve III Derece-c Peri̇odonti̇ti̇s Üzeri̇ne Etki̇si̇
No full textGiriş: Periodontitis, disbiyotik plak biyofilmleri ile ilişkili ve diş eti, periodontal ligament, sement ve alveolar
kemiğinden oluşan periodonsiyumda yıkım ile karakterize kronik enfalamtuvar bir hastalıktır.
Amaç: Çalışmanın amacı, cerrahi olamayan periodontal tedavinin (CPT), Evre II ve III Derece-C periodontitis
üzerine klinik etkisini değerlendirmektir.
Yöntem: Çalışma grubuna Marmara Üniversitesi Diş Hekimliği Fakültesi Periodontoloji Anabilim Dalı’na
başvuran 11 Evre II Derece-C ve 11 Evre III Derece-C olmak üzere toplam 22 sistemik sağlıklı periodontitisli
hasta dahil edildi. Hastaların klinik ve radyografik muayenesi yapıldı. Plak indeksi (Pİ), gingival indeks (Gİ),
sondalama derinliği (SD), klinik ataşman seviyesi (KAS), sondalamada kanama (SK) periodontal ölçümleri
kayıt edildi. Hastalara 4 seans CPT uygulandı. Tedavi sonrası 1 ve 3. aylarda periodontal klinik ölçümler
tekrarlandı.
Bulgular: Başlangıç parametreleri karşılaştırıldığında gruplar arasında Pİ ve SK Evre II Derece-C grubunda
yüksek bulunurken (p<0.05), SD ve KAS Evre III Derece-C grubunda yüksek tespit edildi (p<0.05). Tüm
klinik parametreler her iki gruptada CPT sonrası 1 ve 3. aylarda, başlangıca göre anlamlı gelişme gösterdi
(p<0.05). 3. ayda başlangıca göre Pİ değişimi Evre II Derece-C grubunda daha yüksekken (p<0.05) SD ve
KAS değişimi Evre III Derece-C grubunda daha yüksek bulundu (p<0.05).
Sonuç: Bu çalışmada, CPT’nin her iki grupta da tüm klinik parametreler üzerinde anlamlı etkisi olduğu ortaya
koyuldu. CPT’nin, Evre III Derece C grubunda daha etkin olduğunu sonucuna varıldı.
Anahtar Kelimeler: Periodontitis, periodontal tedavi, cep derinliğiIntroduction: Periodontitis is a chronic inflammatory disease associated with dysbiotic plaque biofilms and
characterized by destruction of periodonsium which includes the gingiva, periodontal ligament, cement, and
alveolar bone.
Objective: This study aims to evaluate the clinical outcomes of non-surgical periodontal therapy (NPT) on
Stage II Grade-C and Stage III Grade-C periodontitis.
Methods: A total of 22 patients with systemically healthy including 11 stage II Grade-C and 11 satage III
Grade-C periodontitis were recruited for this study. Radiographic and clinical examinations were performed.
Plaque index (PI), gingival index (GI), probing depth (PD), clinical attachment level (CAL), bleeding ob
probing (BOP) periodontal measurements were recorded. The patients underwent 4 sessions of NPT. Clinical
measurements were repeated at 1 and 3 months after NPT.
Results: At the baseline, PI and BOP were significantly higher in Stage II Grade-C (p<0.05), but PD and CAL
were significantly higher in Stage III Grade-C (p<0.05). All clinical parameters improved at 1 and 3 months
compared to baseline (p<0.05) in both groups. At the 3rd month compared to the baseline changes of PI was
observed higher in Stage II Grade-C (p<0.05), and PD and CAL were found higher in Stage III Grade-C
(p<0.05).
Conclusion: This study showed significant improvements in all clinical parameters after NPT in both groups.
The response to NPT, Stage III Grade-C was superior to Stage II Grade-C.
Keywords: Periodontitis, periodontal therapy, pocket dept
Identification and elimination of interior points for the minimum enclosing ball problem
No full textGiven A := {a1,...,am} C ℝn, we consider the problem of reducing the input set for the computation of the minimum enclosing ball of A. In this note, given an approximate solution to the minimum enclosing ball problem, we propose a simple procedure to identify and eliminate points in.A that are guaranteed to lie in the interior of the minimum-radius ball enclosing A. Our computational results reveal that incorporating this procedure into two recent algorithms proposed by Yildirim lead to significant speed-ups in running times especially for randomly generated largescale problems. We also illustrate that the extra overhead due to the elimination procedure remains at an acceptable level for spherical or almost spherical input sets
Thermal Hysteresis and Bursting Rate in Sucrose Solutions with Antifreeze Proteins
No full textAntifreeze proteins (AFPs) modify the ice shape and inhibit further growth leading to thermal hysteresis (TH). Numerous studies have been performed with the addtition of AFPs to preserve frozen products but the influence of sucrose on the effects of AFPs has not been investigated as of yet. Therefore, the TH activities of type I antifreeze protein (AFP I) and antifreeze glycoprotein (AFGP) were measured as a function of concentration, type of AFPs, and also sucrose concentration. The results showed that the TH values rose with increase in concentration of AFPs and sucrose concentration. The crystals experienced shape modification and grew in the c-axis direction in the presence of both AFPs. The bursting rate of crystals changed depending on both the concentrations of AFPs and sucrose
Kadran bazlı cerrahi olmayan periodontal tedavinin evre III Derece B ve derece C periodontitis hastalarındaki klinik etkisi
No full textObjective: The aim of this study was to evaluate clinical effects of quadrant-wise non-surgical periodontal treatment in patients with stage-III grade-B and grade-C periodontitis. Methods: Forty-five non-smoker individuals who were systemically healthy, including 15 peri-odontally healthy, 15 stage-III grade-B periodontitis participant, and 15 stage-III grade-C peri-odontitis participant, were involved in this study. At baseline, plaque index, gingival index, probing depth, clinical attachment level, and bleeding on probing were evaluated for all participants, and in periodontitis groups, probing depth measurements were categorized as intermediate (4-6 mm) and deep (>6 mm), and the percentages of all categorized probing depths were calcu-lated. Quadrant-wise non-surgical periodontal treatment was performed in both periodontitis groups, and clinical measurements were performed again 1 and 3 months after quadrant-wise non-surgical periodontal treatment. Results: At baseline, periodontitis was higher in stage-III grade-C group than stage-III grade-B group (P .05). All clinical parameters improved from baseline to 1 and 3 months in all periodontitis groups (P >.05). The reduction of percentage of the regions with probing depth of 4-6 mm from baseline to 3 months was higher in stage-III grade-B group than stage-III grade-C group (P <.05). As compared to the stage-III grade-B group at 1 and 3 months, the percentage of sites with probing depth ≥ 5 mm and BOP+(%) was higher in the stage-III grade-C group (P <.05). Conclusion: According to residual probing depth and deep periodontal pockets, the clinical response of quadrant-wise non-surgical periodontal treatment was superior in stage-III grade-B periodontitis group than stage-III grade-C periodontitis group, and there was a need for periodontal surgical treatment after quadrant-wise non-surgical periodontal treatment in the stage-III grade-C periodontitis group
Chaenorhinum semispeluncarum sp. nov. and C. yildirimlii sp. nov. (Scrophulariaceae) from east Anatolia, Turkey
No full textChaenorhinum semispeluncarum H. Yildirim, Kit Tan, S. Şenol & A. Pirhan sp. nov. and C. yildirimlii Kit Tan, H. Yildirim, S. Şenol & A. Pirhan sp. nov. (Scrophulariaceae, C. sect. Microrrhinum) from east Anatolia are described and illustrated. They are both narrow endemics related to the rare C. cryptarum, also from east Anatolia. Chaenorhinum semispeluncarum occurs on calcareous marl rich in potassium nitrate at the entrance of wet caves in Malatya and differs from C. cryptarum by its erect habit, smaller corollas, shallowly ribbed and tuberculate, bicoloured seeds. Chaenorhinum yildirimlii from the neighbouring province of Erzincan was found on alluvial soil of stream banks and differs from C. semispeluncarum by its seed characters which are similar to those of C. cryptarum. Chaenorhinum yildirimlii differs from C. cryptarum, most conspicuously by the violet lower corolla lip spotted dark purple at the apex. © 2010 The Authors
<em>Chaenorhinum semispeluncarum</em> sp. nov. and <em>C. yildirimlii</em> sp. nov. (Scrophulariaceae) from east Anatolia, Turkey
No full textChaenorhinum semispeluncarum H. Yildirim, Kit Tan, S. Senol & A. Pirhan sp. nov. and C. yildirimlii Kit Tan, H. Yildirim, S. Senol & A. Pirhan sp. nov. (Scrophulariaceae, C. sect. Microrrhinum) from east Anatolia are described and illustrated. They are both narrow endemics related to the rare C. cryptarum, also from east Anatolia. Chaenorhinum semispeluncarum occurs on calcareous marl rich in potassium nitrate at the entrance of wet caves in Malatya and differs from C. cryptarum by its erect habit, smaller corollas, shallowly ribbed and tuberculate, bicoloured seeds. Chaenorhinum yildirimlii from the neighbouring province of Erzincan was found on alluvial soil of stream banks and differs from C. semispeluncarum by its seed characters which are similar to those of C. cryptarum. Chaenorhinum yildirimlii differs from C. cryptarum, most conspicuously by the violet lower corolla lip spotted dark purple at the apex
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
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