On a Stability Theorem of the Optimal Control Problem For Quasi Optic Equation

In this paper, the finite difference method is applied to the optimal control problem of system governed by stationary equation of Quasi-Optic . For this aim, the finite difference scheme is constituted for considered optimal control problem. Obtained an estimation for the solution of this difference scheme, the error of the difference scheme is evaluated. Finally, the convergence according to the functional of the finite difference approximations is proved

Comparison of the efficacy of broad-band targeted UVB phototherapy and topical psoralen with targeted UVA phototherapy in localized vitiligo

Aim of the study is to compare efficacy of targeted broad-band UVB phototherapy and topical psoralen with targeted UVA phototherapy treatments in localized vitiligo for 3 months prospectively. The cases with symmetrical vitiligo lesions were included in the study. Broad-band targeted UVB was applied on one side and targeted UVA phototherapy with topical psoralen on the other side. Twenty-two patients who were diagnosed with localized vitiligo were enrolled in this study. These cases consisted of 6 (27.3%) females and 16 (72.7%) males aging between 17 and 69 (34.22 ± 14.15). Fifty-four lesions (27 left, 27 right) were compared for treatments. After the first month of the treatments, the sides of the lesions were compared in order to evaluate improvement. Percentages of success were 25% for targeted broad-band UVB microphototherapy and 75% for topical psoralen with targeted UVA microphototherapy. When the two treatment methods were com pared with each other, a significant difference was found in terms of treatment response (P = .017). At the end of the third month, the success rates were 37.5% for targeted broad-band UVB microphototherapy and 62.5% for topical psoralen with targeted UVA microphototherapy, however a statistically significant differ ence was not determined between the two treatments (P > .05). Both targeted broad-band UVB phototherapy and topical psoralen with targeted UVA phototherapy provided repigmentation for localized vitiligo at the end of the third month. Our investigation shows that both treatments are safe and they provide repigmentation with a limited response

Bağdere Tufası’nın jeolojik, jeokimyasal ve jeokronolojik özellikleri (Elazığ, D Türkiye)

Çalışmaya konu olan tufa yüzleği, Türkiye’nin ikinci büyüklükteki neotektonik yapısı olan sol yanal doğrultu atımlı Doğu Anadolu Fay Sistemi’nin önemli zonlarından biri olan Elazığ Fay Zonu üstünde, Elazığ şehir merkezinin yaklaşık 20 km güneybatısında bulunur. Tufaların yanal-düşey ilişkili olduğu Kuvaterner yaşlı Palu Formasyonu, karasal kökenli kırıntılı çökellerle karakterize edilir. Tufa oluşumunda kaynak kaya rolü oynayan Devoniyen-Jura yaşlı Keban Metamorfitleri’nin Elazığ çevresindeki yüzlekleri, çoğunlukla mermerlerle karakterize edilir. Keban Metamorfitleri’nin litolojisi ve sol yanal doğrultu atımlı Elazığ Fay Zonu’nun meydana getirdiği kırıklı yapı, akışkan dolaşımında ve bundan dolayı tufanın oluşmasında önemli bir görev almıştır. Tufa örneklerinde belirlenen element miktarları, Ca: 384719-390151 ppm, Mg: 3498-4764 ppm, Sr: 112-338 ppm düzeyindedir. δ13C değerleri, 0.4 ila 2.6 (‰ PDP), δ18O değerleri ise -9.9 ila -11.4 (‰PDB) arasındadır. Çalışmadan elde edilen veriler birlikte değerlendirildiğinde, Bağdere tufasının, sığ göl ortamında oluştuğu düşünülmektedir. Örneklerden elde edilen U-Th yaş verileri, tufa çökeliminin günümüzden en azından 524,597 yıl önce başlamış olduğuna işaret etmektedir

Circulation levels of acute phase proteins pentraxin 3 and serum amyloid A in atherosclerosis have correlations with periodontal inflamed surface area

Objectives: One of the plausible mechanisms in the relationship between periodontitis and coronary artery disease (CAD) is the systemic inflammatory burden comprised of circulating cytokines/mediators related to periodontitis. This study aims to test the hypothesis that periodontal inflamed surface area (PISA) is correlated with higher circulating levels of acute phase reactants (APR) and pro-inflammatory cytokines/mediators and lower anti-inflammatory cytokines/mediators in CAD patients. Material and Methods: Patients aged from 30 to 75 years who underwent coronary angiography with CAD suspicion were included. Clinical periodontal parameters (probing depth - PD, clinical attachment loss, and bleeding on probing - BOP) were previously recorded and participants were divided into four groups after coronary angiography: Group 1: CAD (+) with periodontitis (n=20); Group 2: CAD (+) without periodontitis (n=20); Group 3: CAD (-) with periodontitis (n=21); Group 4: CAD (-) without periodontitis (n = 16). Serum interleukin (IL) −1, −6, −10, tumor necrosis factor (TNF)-α, serum amyloid A (SAA), pentraxin (PTX) 3, and high-sensitivity C-reactive protein (hs-CRP) levels were measured with ELISA. Results: Groups 1 and 3 showed periodontal parameter values higher than Groups 2 and 4 (p<0.0125). None of the investigated serum parameters were statistically significantly different between the study groups (p>0.0125). In CAD (-) groups (Groups 3 and 4), PISA has shown positive correlations with PTX3 and SAA (p<0.05). Age was found to predict CAD significantly according to the results of the multivariate regression analysis (Odds Ratio: 1.17; 95% Confidence Interval: 1.08-1.27; p<0.001). Conclusions: Although age was found to predict CAD significantly, the positive correlations between PISA and APR in CAD (-) groups deserve further attention, which might depend on the higher PISA values of periodontitis patients. In further studies conducted in a larger population, the stratification of age groups would provide us more accurate results

Acute effect of phosphodiesterase type 5 inhibitor on serum oxidative status and prolidase activities in men with erectile dysfunction

OBJECTIVES: To investigate the acute effect of phosphodiesterase type 5 (PDE5) inhibitor on erectile dysfunction by evaluating serum oxidative status and prolidase activity. METHODS: Serum samples of 36 patients with erectile dysfunction and 30 control cases were analyzed for total antioxidant status, total oxidant status, and prolidase activity, before and after the administration of tadalafil citrate. RESULTS: Before and after tadalafil citrate administration, serum total antioxidant status, total oxidant status, and prolidase were 1.1+0.0 vs. 1.6 + 0.0 umol H2O2 Eq/L, 10.3+1.1 vs. 6.9 + 1.2 umol H2O2 Eq/L, and 236.4+19.5 vs. 228.2 + 19.2 U/L, respectively (

Lake Hazar basin: A negative flower structure on the east anatolian fault system (EAFS), SE Turkey

The East Anatolian Fault System ( EAFS) is a 30-km-wide, 700-km-long and NE-trending sinistral strike-slip megashear belt between the Anatolian platelet in the northwest and African-Arabian plates in the southeast. It is located between Karliova County in the NE and Karatas ( Adana)-Samandag ( Antakya) in the SW. In the Lake Hazar region, the EAFS consists of five fault zones. These are, from north to south, the Elazig fault zone, the Uluova fault zone, the Sivrice fault zone, the Adiyaman fault zone and the Lice-Cermik fault zone; in previous studies only the Sivrice fault zone has been reported to be part of the EAFS. The 2-4-km-wide and 180-km-long Sivrice fault zone contains the master fault of the system. It bifurcates into several sub-fault zones and isolated faults resulting in a 5-km-wide, 32-km-long, active lensoidal depression bounded by a series of short to long and curved fault segments with considerable amounts of normal-slip component, particularly on the southern margin. This strike-slip depression was previously reported and interpreted to be a classical pull-apart basin or rhombgraben basin originating from a left step-over located in the northeastern corner of Lake Hazar. In contrast to this earlier interpretation, our detailed field geological mapping of active faults indicates that there is no any left stepover at the northeast corner of Lake Hazar. In lieu of this, the master fault of the EAFS bifurcates into two substrands nearby Kartaldere village in the east which then run in a SW direction across Lake Hazar resulting in two sub-parallel lensoidal depressions separated by an intervening horst. This strike-slip geometry is here termed a negative flower structure. This interpretation is supported by basin-ward curved boundary faults with considerable normal-slip component of movement and by the bathymetry of Lake Hazar. Back-tilted fault blocks, uplifted and dissected Plio-Quaternary terrace conglomerates, fan-delta deposits and associated syn-sedimentary structures indicate that neotectonic infill of the basin has accumulated under the influence of a strike-slip tectonic regime. The left-lateral strike-slip amount and the vertical throw amount accumulated along the Sivrice fault zone are 9 +/- 1 km and 1317 +/- 10 m, respectively. These values yield strike- and vertical-slip rates of 4 mm/yr and 0.5 mm/yr, respectively, along the Sivrice fault zone. However, the slip rates along the EAFS must be greater because the EAFS around Lake Hazar consists of five fault zones which all share the slip rate

A Palaeontological Geosite Example: Hasanaga Stream, Akcadag, Malatya

WOS: 000434457700008Rock, mineral, fossil associations, structure, geological section, landforms or a part of land which they represent current or former geological process, event or a specialty is defined geosite. Some geologic units containing fossil associations and outcropping along Hasanaga Stream located in the northwest of Akcadag which is a settlement of Malatya city in Eastern Anatolia Region, is seen as a good example to this definition. The age of the geological units that outcrop along Hasanaga Stream ranges from Mesozoic to Quaternary. Diversity of Tertiary sedimentary units along Hasanaga Stream is represented by Korgantepe, Yenice and Asartepe members of Eocene Darende Formation, Oligocene Muratli Formation and Lower Miocene Alibonca Formation. The geological units constitute a regular sequence range from Lutetian to Oligocene in Hasanaga Stream. Their abundant larger benthic foraminifera such as Nummulites, Alveolina and Discocyclina are the subject of this study and they have been evaluated within the scope of geological heritage. Along the Hasanaga stream also, there are many caves having traces of life in some of them, on both sides of the valley, in different sizes. Diversity of larger benthic foraminifera and karstic formations increases the scientific importance of the district

Reasons of Choosing Recreation Management Departments within the Body of Tourism Faculties and Expectations of Students

It is seen that the students graduating from Recreation department work in tourism sectors, but on the other hand, Recreation students can also work in industry and domestic administrations, school recreation, therapeutic recreation etc. This paper presents some solutions by determining that the Recreation administration program’s students’ expectations of future and sufficiency of their education and their happines