143 research outputs found
Identification and elimination of interior points for the minimum enclosing ball problem
Get PDFGiven 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
Saprinus tenuistrius subsp. tenuistrius MARSEUL 1855
No full text<i>Saprinus tenuistrius tenuistrius</i> MARSEUL, 1855 <p>M a t e r i a l e x a m i n e d: Karaman: 10.VII.2014, 3.</p> <p>This subspecies is newly recorded from Turkey.</p>Published as part of <i>Polat, Alper & Yildirim, Erol, 2017, A contribution to the knowledge of the Histeridae (Coleoptera) fauna of Turkey, pp. 1523-1527 in Linzer biologische Beiträge 49 (2)</i> on page 1525, DOI: <a href="http://zenodo.org/record/5419698">10.5281/zenodo.5419698</a>
Valgus hemipterus subsp. hemipterus hemipterus (LINNAEUS 1758
No full textValgus hemipterus hemipterus (LINNAEUS, 1758) M a t e r i a l e x a m i n e d: Erzurum: Atatürk University Field, 1850 m, 3.VI.2013, ♀; İstanbul: Florya, 28 m, 8.IX.2011, ♀. N o t e s: RÖSSNER (2014) attributed the populations from southern Turkey to a distinct subspecies, Valgus hemipterus meridionalis RÖSSNER.Published as part of Polat, Alper, Yildirim, Erol & Uliana, Marco, 2017, A contribution to the knowledge of the Glaphyridae and Cetoniinae (Scarabaeidae) (Coleoptera: Scarabaeoidea) fauna of Turkey, pp. 1505-1522 in Linzer biologische Beiträge 49 (2) on page 1519, DOI: 10.5281/zenodo.541971
Impaired vasomotor function induced by the combination of hypertension and hypercholesterolemia
No full textAlthough it is well known that endothelial function is compromised in the presence of either hypertension (HTN) or hypercholesterolemia (HCh), less is known about whether and how the combination of these risk factors (HTN+HCh) results in impaired endothelium-dependent dilation (EDD). The aims of this study were to evaluate the influence of HTN+HCh on vasomotor function and to identify the mechanisms that underlie the altered vascular reactivity elicited by HTN+HCh. Endothelium-dependent and -independent vasomotor responses of aortic vessels were studied in mice with diet-induced HCh and/or HTN induced by chronic administration of either angiotensin II (AngII) or deoxycorticosterone acetate-salt. HTN+HCh elicited an impairment of EDD that appeared between each risk factor alone. Incubation with catalase resulted in more severe EDD impairment. Each risk factor enhanced vascular H2O2 production, but a larger response was noted with HTN+HCh. An attenuated EDD was not observed in AngII type la receptor deficient (AT1r(-/-)) mice, but AT1r(-/-) bone marrow chimeras exhibited more profound impairment compared with wild-type. HTN+HCh does not exert an additive effect of vasomotor dysfunction compared with either risk factor alone, and both H2O2 and blood cell-associated AT1r contribute to the impaired EDD responses in mice with HTN+HCh. J Am Soc Hypertens 2013;7(1):14-23. (C) 2013 American Society of Hypertension. All rights reserved
Glaphyrus varians MENETRIES 1836
No full textGlaphyrus varians MÉNÉTRIES, 1836 M a t e r i a l e x a m i n e d: Antalya: Kepez, Odabaşı, 305 m, 24.VII.2012, ♀; Erzurum: Horasan, 06.VII.1972, ♀, 233, Köprübaş ı, 21.VI.2010, ♀, Köprüköy, Ağcaşar, 22.VI.2010, ♀; Muş: 25.VIII.1996, ♀. N o t e s: Four different subspecies are currently listed for this taxon, all of them occurrying in Turkey (NIKODÝM & BEZDĚK 2016). In spite of the recent introduction of one of them (MITTER 1990), their diagnosis is unclear and requires a revision.Published as part of Polat, Alper, Yildirim, Erol & Uliana, Marco, 2017, A contribution to the knowledge of the Glaphyridae and Cetoniinae (Scarabaeidae) (Coleoptera: Scarabaeoidea) fauna of Turkey, pp. 1505-1522 in Linzer biologische Beiträge 49 (2) on page 1509, DOI: 10.5281/zenodo.541971
Eulasia (Eulasia) jordanica
No full textEulasia (Eulasia) jordanica (MITTER, 1992) M a t e r i a l e x a m i n e d: Şanlıurfa: Ceylanpınar, 400 m, 04.V.1996, 3♀♀, 233. This species is newly recorded from Turkey. N o t e s: This species is very close to Eulasia nitidicollis and was up to date considered endemic of Jordan (NIKODÝM & BEZDĚK 2016). A paper addressing taxonomy and distribution of this pair of species is in preparation.Published as part of Polat, Alper, Yildirim, Erol & Uliana, Marco, 2017, A contribution to the knowledge of the Glaphyridae and Cetoniinae (Scarabaeidae) (Coleoptera: Scarabaeoidea) fauna of Turkey, pp. 1505-1522 in Linzer biologische Beiträge 49 (2) on page 1508, DOI: 10.5281/zenodo.541971
Eulasia (Eulasia) korbi
No full textEulasia (Eulasia) korbi (PETROVITZ, 1972) M a t e r i a l e x a m i n e d: Erzurum:Aziziye,Ilıca, 08.VII.1997, ♀, Köprüköy, Geyikli, N 39°48′, E 42°04′, 2159 m, 13.VI.2013, 2♀♀, 233, Örentaş, N 40°06′, E 41°52′, 2110 m, 30.VI.2012, 2♀♀, Yakutiye, Güzelyayla, 2100 m, 16.VII.2011, 3. N o t e s: Eulasia korbi is likely to be a colour form of Eulasia chrysopyga, as specimens with intermediate characters, or populations with not clear-cut conditions, are known. However, the two forms seems to occur mostly separately, therefore a subspecific rank may be possible. For example, among samples examined by us, all specimens from Köprüköy, Geyikli, exhibit almost completely white-yellowish long hair, departing significantly from the populations of ordinarily dark-haired E. chrysopyga observed in most of the Erzurum region. A taxonomic re-evaluation of this taxon is anyway beyond the aim of this work, and we applied to our samples the current taxonomic arrangement.Published as part of Polat, Alper, Yildirim, Erol & Uliana, Marco, 2017, A contribution to the knowledge of the Glaphyridae and Cetoniinae (Scarabaeidae) (Coleoptera: Scarabaeoidea) fauna of Turkey, pp. 1505-1522 in Linzer biologische Beiträge 49 (2) on page 1508, DOI: 10.5281/zenodo.541971
Protaetia (Potosia) angustata subsp. angustula
No full textProtaetia (Potosia) angustata angustula (REITTER, 1898) M a t e r i a l e x a m i n e d: Erzurum: Pazaryolu, 2800 m, 24.VIII.1988, ♀; Kayseri: Melikgazi, 1054 m, 26.VII.2011, 3; Konya: Güneysınır, 4.VII.1997, ♀; Mersin: Erdemli, 4.IV.1993, 3, 1.IX.1983, 2♀♀, Tece, 14.VII.1992, ♀; Osmaniye: Çiftmazı, 24. VI.1990, ♀, 3; Tunceli: Mazgirt, Kalaycı, 25.III. 2010, 950 m, 3. N o t e s: Populations from Turkey are referred to ssp. P. angustula (REITTER, 1898), which was redefined by ALEXIS & DELPONT, 1996 (as P. orientalis). This taxon, however, is poorly characterised, as remarked also by TAUZIN & RITTNER (2012), and may be only a synonym of the nominotypical subspecies.Published as part of Polat, Alper, Yildirim, Erol & Uliana, Marco, 2017, A contribution to the knowledge of the Glaphyridae and Cetoniinae (Scarabaeidae) (Coleoptera: Scarabaeoidea) fauna of Turkey, pp. 1505-1522 in Linzer biologische Beiträge 49 (2) on page 1514, DOI: 10.5281/zenodo.541971
Predisposing Variables in Children with Risk of Disruptive Mood: A Clinical Case–Control Study
No full textDisruptive mood dysregulation disorder (DMDD) is defined in the DSM-V as
frequent, severe temper outbursts that significantly impair functioning in
different environments. This was a second-stage of follow-up study, conducted to screen the frequency of DMDD in an elementary school. In the firststage of our study, 453 children between ages 7–11 were evaluated in terms
of DMDD high-risk with Children Behavior Check List (CBCL). Of the children,
30 high-risk and 30 low-risk children for DMDD according to CBCL agreed to
participate this clinical case–control study. Diagnoses of anxiety disorder,
attention deficit and hyperactivity disorder (ADHD), and oppositional defiant
disorder were more common among children in the high-risk group than the
control group. Symptom Checklist-90-Revised (SCL-90-R) mothers’ interpersonal, anger, and paranoid subscale scores were higher in the DMDD highrisk group than the control group. Children in the DMDD high-risk group
scored higher than the control group in all SRS subscales. In the Diagnostic
Analysis of Nonverbal Accuracy (DANVA) test, the DMDD high-risk group had
higher error rates for fearful and intense facial expressions. Multiple linear
regression analysis showed that having a diagnosis of ADHD, high maternal
SCL-90-R anger score, and presence of a paternal psychiatric diagnosis
increased the high-risk of DMDD
Effects of Curing Temperature on Chloride Migration and Electrical Resistivity of Concrete, Materials, Systems and Structures in Civil Engineering
No full textAlper Yıkıcı (MEF Author)##nofulltext##..
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