17 research outputs found

    Farklı habitatlarda Convolvulus oleifolius var. Deserti'nin morfoloji ve fizyolojisinde değişimler

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    Apostol adasının farklı vejetasyon zonlarında bulunan Convolvulus oleifolius Desr. var. deserti Pamp./Sürmeli yayılgan'ın morfolojik özellikleri, fotosentetik pigment içerikleri, prolin ve toplam protein miktarları çalışılmıştır. Örnekler Bodrum-Türkbükü-Muğla-Türkiye, Apostol adasının littoral-epilittoral ve interior vejetasyon zonlarından toplanmıştır. Gövde uzunluğu, organ büyüklüğü, tüy yoğunluğu ve çiçeklenme durumunda belirgin farklılıklar vardır. Fotosentetik pigmentler littoral-epilittoral vejetasyon zonda, interior vejetasyon zondakinden daha azdır. Littoralepilittoral vejetasyon zonda prolin miktarı interior vejetasyon zondakinden önemli derecede daha yüksekken, toplam protein miktarı önemli derecede daha düşüktür. C. oleifolius var. deserti'nin morfolojik ve fizyolojik özelliklerinin çeşitli habitatlara uyum mekanizması sonucu ortaya çıkan önemli farklılıkları sergilediği düşünülebilir. Bu nedenle, çalışmamız farklı habitatlara uyumlu ve/veya toleranslı bitkilerin seçilmesi ve değerlendirilmesi için önemlidirMorphological features, photosynthetic pigment contents, proline and total protein amounts of Convolvulus oleifolius Desr. var. deserti Pamp./Surmeli yayilgan in different vegetation zones of Apostol Island are studied. Samples were collected from littoral-epilittoral and interior vegetation zones of Apostol Island, Bodrum-Turkbuku-MuglaTurkey. There are obvious differences in terms of stem length, organ size, hair density and inflorescence. Photosynthetic pigments in littoral-epilittoral vegetation zone are less than in interior vegetation zone. Prolin amount is significantly higher, but total protein amount is significantly lower in littoral-epilittoral vegetation zone than in interior vegetation zone. It may be thought that the morphological and physiological features of the C. oleifolius var. deserti exhibited considerable differences which appeared be the product of adaptive mechanisms to different habitat. So, our study is important for improving and selecting crops tolerant of and/or adapted to different habita

    Facilitating Circular Economy Strategies Using Digital Construction Tools: Framework Development

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    The construction sector has undergone several transformations to address adverse environmental, economic, and social impacts. The concept of the circular economy (CE) has transcended into this domain to solve the needs of construction amid resource constraints. Furthermore, advanced digital tools are being implemented across industries owing to the boost given by the fourth industrial revolution. This paper aims to develop a framework that investigates the effect of digital tools on CE implementation in the construction sector. The study is based on a three-step approach, where first, an initial framework design based on a systematic literature review was conducted. This is followed by framework optimization using semistructured interviews with experts and validation through a case study. This study resulted in the development of a new framework, which aims to investigate how advanced digital tools can be used in the construction sector to enhance CE implementation. The contribution of the present study is two-fold: (1) the integration (addressing existing research gap) of CE and digitalization concepts in the construction sector; (2) an investigation into the critical barriers, offering insights for construction practitioners

    Assessment of peripapillary retinal nerve fiber layer thickness in children with vitamin B-12 deficiency

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    Cure, Medine Cumhur/0000-0001-9253-6459WOS: 000327894900020PubMed: 23677174Vitamin B-12 deficiency is a worldwide problem. It affects all ages, including children. It is one of the most common nutritional disorders and can cause harmful effects on the nervous system. in this study, we compared the peripapillary retinal nerve fiber layer thickness (RNFLT) in a healthy control group with children with vitamin B-12 deficiency. in our study, we aimed to evaluate the effect of vitamin B-12 deficiency on the RNFLT in children with the optical coherence tomography (OCT) method. Sixty-six children with a diagnosis of vitamin B-12 deficiency (patient group) and 66 age- and sex-matched healthy children (control group) were enrolled in this prospectively designed study. Blood counts, vitamin B-12 levels, folate levels, and full biochemical parameters were obtained for all the subjects in each group. Peripapillary RNFLT measurements were performed with Cirrus HD spectral domain OCT. the thickness of the superior retinal nerve fiber layer (RNFL) in the vitamin B-12 deficiency group was significantly lower than that of the control group (p = 0.037). Although the average thickness of the RNFL was lower in the patient group, there was no statistically significant differences (p = 0.216). in the vitamin B-12 deficiency group, the average RNFL thickness and the superior RNFL thickness were significantly correlated with vitamin B-12 levels (r (1) = 0.353, p (1) < 0.004 and r (2) = 0.416, p (2) = 0.001, respectively). Our study showed that a deficiency in vitamin B-12, elsewhere it is important for the development of the central nervous system, is associated with a reduction in the thickness of the superior RNFL

    Perfusion index assessment during transition period of newborns: an observational study.

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    Perfusion index (PI) is becoming a part of clinical practice in neonatology to monitor peripheral perfusion noninvasively. Hemodynamic and respiratory changes occur in newborns during the transition period after birth in which peripheral perfusion may be affected. Tachypnea is a frequent symptom during this period. While some tachypneic newborns get well in less than 6 h and diagnosed as "delayed transition", others get admitted to intensive care unit which transient tachypnea of newborn (TTN) being the most common diagnosis among them. We aimed to compare PI of neonates with TTN and delayed transition with controls, and assess its value on discrimination of delayed transition and TTN
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