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Conservation assessment and action on Lotus sanguineus (Fabaceae), a critically endangered endemic species to Turkey
No full textNew therapeutic approaches in cystic fibrosis [Kistik fibroziste yeni terapötik yaklaşımlar]
No full textMidterm outcomes after arthroscopic repair of partial rotator cuff tears: A retrospective study of correlation between partial tear types and surgical technique
No full textObjective: Patients who underwent arthroscopic repair for partial
rotator cuff tears were evaluated retrospectively. This study purposed
to assess the postoperative clinical results of arthroscopic treatment
of intratendinous rotator cuff tears and to investigate the effect of
the tear type on the postoperative clinical outcomes.
Methods: Overall, 60 patients {[}36 women and 24 men; mean age: 48.6 +/-
12.2 years (range 33-67 years)] who underwent arthroscopic repair of
Ellman stage 3 partial rotator cuff tear were evaluated retrospectively.
These patients were grouped into the following three groups:
articular-sided tears, bursal-sided tears, and intratendinous tears,
with 20 patients included in each group. Subacromial decompression,
acromioplasty, and tear repair without transforming to full-thickness
tear were applied to the bursal-sided tears. The same technique was
performed for intratendinous ruptures, with the only technical
difference was that the capsular tissue was preserved during debridement
of intratendinous tears. The articular-sided tears were transformed to
complete tears and repaired arthroscopically. The preoperative and
postoperative ASES scores and range of motion improvements were
evaluated in all patients. The mean follow-up time was 44 +/- 6.5 months
(range: 36-62 months).
Results: No significant intergroup differences were observed concerning
the age and the mean follow-up duration (p=0524, p=0.665). A similar
increase in ASES scores was observed for all three types of tears
(bursal-sided tears: 31.09-82.65; articular-sided tears: 35.50--84.00;
intratendinous tears: 34.01-83.49). Statistically, no significant
intergroup difference was observed concerning ASES score improvement
(p=0.585). An increase in mean forward flexion, abduction, and external
rotation were observed, especially, a statistically significant increase
in flexion (p=0.001) and abduction (p=0.001) in all three types of
tears. No patient experienced any intraoperative or postoperative
complications.
Conclusion: The results of arthroscopic treatment of intratendinous
tears were similar to the other types of partial tears, and the results
of arthroscopic treatment of grade 3 partial rotator cuff tears revealed
satisfactory outcomes, regardless of the type of the tear
İngilizce Öğretmenlerinin Kalitesini Artırmaya Yönelik Öğretmen Ölçme ve Değerlendirme Model Önerisi
No full textMulticenter study of levodopa carbidopa intestinal gel in Parkinson's disease: the Turkish experience
No full textBackground/aim: Our purpose was to determine the efficacy of levodopa
carbidopa intestinal gel (LCIG) in a series of Turkish patients with
Parkinson's disease (PD).
Materials and methods: We had telephone calls with 54 patients from 11
neurology centers who were on LCIG treatment, and 44 patients or their
caregivers were included in an eight-item survey between September 2015
and June 2016. The reliability and validity of the survey were evaluated
with intraclass correlation coefficients for every question separately.
Results: Average age of the patients were 63.48 and the duration of PD
was 12.79 years. Average LCIG treatment period was 15.63 months.
Percentages of the patients who reported they were `better' after LCIG
treatment were as follows: 80\% for time spent off, 55\% for dyskinesia,
65\% for tremor, 85\% for gait disorder, 50\% for pain, 50\% for sleep
disorders, 42.5\% for depression, 32.5\% for incontinence, and 70\% for
activities of daily living. Cronbach's alpha was 0.795 and the
intraclass correlation coefficient was reliable for the items.
Conclusion: As detected by a survey performed by telephone calls with
good interrater reliability, patients with PD improve with LCIG
treatment in many aspects of the disease
Restoratıon Proposal For Gürcüzade Mehmet Ali Bey House In Amasya
No full textBu tez çalışması, Amasya ili Merkez ilçesi Hacı İlyas Mahallesi Gani Sokak’ta bulunan
Gürcüzade Mehmet Ali Bey Konutu’nu konu etmektedir. Çalışmanın amacı, geleneksel
Amasya evleri özelliklerini yansıtan Gürcüzade Mehmet Ali Bey Konutu’nun, mevcut
durumunu sistematik olarak belgelemek, restitüsyonu ile özgün özelliklerini ortaya
çıkarmak ve koruma kuralları ışığında restorasyon önerisi hazırlayarak gelecek nesillere
aktarılmasını sağlamaktır. Çalışma kapsamında, Amasya ili ve Hacı İlyas Mahallesi’nin
genel özellikleri, kentin planlama ve koruma tarihi incelenmiş, Gürcüzade Mehmet Ali
Bey Konutu’nun mevcut durumu, yapıdaki değişim ve bozulmalar belgelenmiş, Amasya
kent merkezinde, Gürcüzade Mehmet Ali Bey Konutu ile aynı dönemde ve teknikte inşa
edilmiş konutlar tespit edilmiş ve yapının özgün durumunu yansıtan restitüsyon çalışması;
yapının kendisinden, yapı dışı kaynaklardan ve karşılaşmalı çalışmadan elde edilen veriler
ışığında hazırlanmış, çalışma sonucunda geleneksel Amasya evlerinin özgün özelliklerini
yansıtan konutun, sürdürülebilir koruma bilinci ile kentte bulunan diğer yapılara örnek
olacak restorasyon projesi hazırlanmıştırThis thesis is about Gürcüzade Mehmet Ali Bey House which is located in Gani Street of
Hacı İlyas Quarter of central district of Amasya. The aim of thesis study is to document the
current situation of Gürcüzade Mehmet Ali Bey House, which reflects the characteristics
of traditional Amasya houses, to reveal its original features with its restitution, to prepare a
restoration proposal which will serve as an example for its environment and to transfer it to
future generations in the light of conservation principles. Within the scope of the study, the
current situation of Gürcüzade Mehmet Ali Bey House, changes, and deteriorations have
been documented. Archival study has been carried out, and the houses built in the same
period with the Gürcüzade Mehmet Ali Bey House in Amasya city center have been
identified. The restitution study has been made in the light of the data obtained from the
house itself, archival documents and the comparative study. As a result of the study, the
restoration project of the house reflecting the original characteristics of traditional Amasya
houses has been prepare
Assessment of soil-geocell interaction behavior by laboratory pullout tests
No full textIn this study, soil-geocell interaction behavior was investigated by
using the large scale laboratory pullout test box. The large scale
pullout box (1500 mm length, 1000 mm wide and 700 mm height) was
designed and built to determine the behavior of the soil-geocell
interaction. A total of 18 pullout tests were conducted under 10, 25 and
50 kPa vertical uniform pressure. The soil used in this study was poorly
graded sand with specific gravity (G(s)) of 2.67, the average particle
size (D-50) of 1.6 mm, maximum and minimum void ratios were 0.79 and
0.43, correspondingly. The maximum and minimum dry unit weights of the
sand were found to be 14.52 and 18.10 kN/m(3). The model pullout tests
were performed at relative densities of 50\%. The internal friction
angle of the sand at relative density of 50\% determined from direct
shear tests was 39 degrees. The displacements and deformations were
measured to obtain the distribution of stress on the geocell. The
results show that the displacements and deformations reach higher values
at the near of front wall of the test box. In this study, as we expected
that increase in vertical load results in increase in the pullout
forces. Within the scope of this study, the variation of the SxL (cell
number x length) parameter, which is expressed to determine the effect
of the dimensions of geocell elements on the pulling force, on pullout
forces is determined. It is concluded that there is a correlation
between values of SxL and pullout forces in soils. Moreover, pullout
interaction factor for geocells reinforcement decrease with increasing
normal pressure
Tırnak Mantarı Enfeksiyonu (Onikomikoz) ve Topikal Tedavide Yararlanımı Artırma Yöntemleri
No full textDetermınatıon Of Thermophysıcal Propertıes Of Dolomıte And Bauxıte Based Nanofluıds And Effect On Performance Of Thermal Systems
No full textIsı transferi için temel akışkan olarak en çok kullanılan su, etilen glikol, mineral yağlar gibi geleneksel akışkanlar zayıf ısı aktarım karakteristikleri nedeniyle ısıl sistemlerde istenilen performansı sağlayamamaktadırlar. Bu dezavantaj nanopartiküllerin temel akışkan ile süspansiyon oluşturulmasıyla giderilmeye çalışılmaktadır. Bu çalışmada temel akışkan olarak su, etilen glikol, etilen glikol-su (50:50) kullanılarak iki adım metoduyla farklı konsantrasyonlarda (%1, %2, %4) dolomit ve boksit nanoakışkanları hazırlanmış, hazırlanan nanoakışkaların termofiziksel özellikleri belirlenmiş ve ısıl sistemlerdeki performansa etkileri incelenmiştir. Spex tipi bilyeli öğütücüde optimum şartlarda sırasıyla 24,5 nm ve 38,9 nm boyutunda dolomit ve boksit nanopartikülleri elde edilmiştir. Nanoakışkanların kararlılıklarının belirlenmesinde zeta potansiyeli ölçüm yöntemi kullanılmıştır. Hazırlanan nanoakışkanların termal iletkenlik, özgül ısı, vizkozite ve yüzey gerilimi gibi termofiziksel özellikleri deneysel olarak ölçülmüştür. Dolomit nanoakışkanının, boksit nanoakışkanına göre daha üstün termofiziksel özelliklere sahip olduğu belirlenmiştir. Isı borusu deneylerinde kullanılan sistem, 1 m uzunluğunda, iç ve dış çapı sırasıyla 13 mm ve 15 mm olan çift fazlı kapalı bakır borudur. Deneylerde evaporatör bölümüne 200 W, 300 W ve 400 W ısıtma gücü uygulanmış ve kondenser bölümünde farklı debilerdeki (5 g/s, 7,5 g/s, 10 g/s) su ile soğutma gerçekleştirilmiştir. Isı borusu duvar sıcaklığı, termal direnci ve verimi temel akışkanların ve nanoakışkanların ısı borusunda çalışma akışkanı olarak kullanımıyla ayrı ayrı incelenmiş ve elde edilen sonuçlar karşılaştırılmıştır. Nanoakışkanlar, üstün termal özelliklerinden dolayı ısı borusunda çalışma akışkanı olarak kullanıldıklarında, temel akışkanlara göre evaporatör bölgesinin ortalama sıcaklığını daha fazla düşürmüşlerdir. 200 W ısıtma gücü ve 10 g/s soğutma suyu debisinde dolomit-EG nanoakışkanı çalışma akışkanı olarak kullanıldığında evaporatör bölgesindeki ortalama duvar sıcaklığı etilen glikol kullanıldığı duruma göre 26,25 °C düşmüştür. 200 W ısıtma gücü, 5 g/s debide, %2 konsantrasyondaki dolomit-su nanoakışkanı kullanıldığında ısı borusu termal direncinde saf suya göre %36,84 iyileşme görülmüştür. 400 W, 10 g/s debide dolomit-etilen glikol nanoakışkanı çalışma akışkanı olarak kullanıldığında etilen glikole kıyasla ısı borusu veriminde %47 artış sağlamıştırConventional fluids such as water, ethylene glycol, mineral oils, which are most commonly used as base fluids for heat transfer, cannot provide the desired performance in thermal systems due to their poor heat transfer characteristics. This disadvantage is tried to be overcome by suspending the nanoparticles with the base fluid. In this study, dolomite and bauxite nanofluids were prepared by using two-step method in different concentrations (1%, 2%, 4%) using water, ethylene glycol, ethylene glycol-water (50:50) as the base fluid, and the thermophysical properties of the prepared nanofluids were determined and effects on performance of thermal systems were investigated. Dolomite and bauxite nanoparticles of 24.5 nm and 38.9 nm were obtained in the Spex type ball mill under optimum conditions, respectively. Zeta potential measurement method was used to determine the stability of nanofluids. Thermal conductivity, specific heat, viscosity and surface tension of the prepared nanofluids were measured experimentally. Dolomite nanofluid has superior thermophysical properties compared to bauxite nanofluid. The system used in the heat pipe tests is a two phase closed copper pipe with a length of 1 m, inner and outer diameter of 13 mm and 15 mm, respectively. In the experiments, 200 W, 300 W and 400 W heating power were applied to the evaporator section and cooling was performed with different flow rates (5 g/s, 7.5 g/s, 10 g/s) in the condenser section. Heat pipe wall temperature, thermal resistance and efficiency were investigated separately by using the base fluids and nanofluids as working fluids in the heat pipe and the obtained results were compared. Because of their superior thermal properties, nanofluids have reduced the average temperature of the evaporator section more than base fluids when used as working fluid in the heat pipe. When the dolomite-EG nanofluid was used as the working fluid at 200 W heating power and 10 g/s cooling water flow rate, the average wall temperature in the evaporator section decreased by 26.25 °C compared to ethylene glycol. At a heating power of 200 W and a flow rate of 5 g/s, thermal resistance of the heat pipe improved by 36.84% when 2% concentration of dolomite-water nanofluid was used. At the conditions of 400 W and 10 g/s, the dolomite-ethylene glycol nanofluid used as working fluid provided a 47% increase in heat pipe efficiency compared to ethylene glyco