Effects on the pattern of plant crop of temperature and precipitation change in Igdir province

Dünyada olduğu gibi Türkiye'de de önemli iklim parametrelerinden olan sıcaklık ve yağışın bitkisel üretim üzerinde etkileri meydana gelmektedir. Bu çalışma kapsamında 1990-2012 yılları arasında sıcaklık ve yağışta meydana gelen değişikliklerin Iğdır ili bitkisel üretim düzeyine olası etkileri araştırılmıştır. Çalışmada, Iğdır'da son yıllarda küresel ısınmanın etkisiyle yıllık ortalama sıcaklıklar ile toplam yağışın arttığı ve genellikle uzun yıllar ortalamasının üzerinde seyrettiği belirlenmiştir. Ayrıca iklim parametrelerinde (aylık ve yıllık ortalama sıcaklık, aylık maksimum ve minimum sıcaklık, yıllık toplam yağış, mevsimsel yağış) meydana gelen değişikliklerin ilde en fazla üretimi yapılan sebze, meyve ve tarla bitkilerinin ekim alanı, üretim miktarı ve verim durumlarını etkilediği sonucuna varılmıştır. Bununla birlikte sıcaklık ve yağışın dışında bitki gelişimini etkileyen birçok çevresel ve genetik etmenlerin olduğu da unutulmamalıdır.As in the world, effects of temperature and precipitation which are important climate parameters on plant production occur also in Turkey. In this study, the possible effects of the changes in temperature and precipitation between the years of 1990-2012 on the level of plant production of Igdir province were investigated. In the research, it was determined that annual average temperatures and total precipitation have increased and are usually over the long term average with the effect of global warming in recent years in Igdir. In addition, it was concluded that the changes in the climate parameters (monthly and annual average temperature, monthly maximum and minimum temperature, annual total precipitation, seasonal precipitation) have influenced the cultivation area, production amount and yield conditions of vegetables, fruits and field crops which is the most produced in province. However, it should not be forgotten that there are many environmental and genetic factors which influence plant growth apart from temperature and precipitation

Can pretreatment hepatic artery perfusion scintigraphy in patients with liver malignancies predict the treatment response of the selective internal radiation therapy with 90Y resin microspheres?

PURPOSEWe aimed to evaluate whether the perfusion pattern from pretreatment hepatic artery perfusion scintigraphy (HAPS) in patients with liver malignancies can predict response to selective internal radiation therapy (SIRT).METHODSThis retrospective study analyzed 152 consecutive patients treated with yttrium-90 (90Y) resin microspheres between April 2015 and July 2017. HAPS using single-photon emission computed tomography/computed tomography (SPECT/CT) with 99mtechnetium macroaggregated albumin (99mTc-MAA) was performed before SIRT. Investigators visually classified perfusion patterns of tumors as heterogeneous or diffuse in HAPS. Between diffuse and heterogeneous pattern group, positron emission tomography/computed tomography (PET/CT) and magnetic resonance imaging (MRI) were performed in third and sixth month after SIRT, and tumor response assessed and compared by using RECIST 1.1 or mRECIST. Overall survival (OS) and progression-free survival (PFS) were also compared with Kaplan-Meier/log-rank analyses.RESULTSOf 216 SIRT procedures, 172 were classified as heterogeneous and 44 as diffuse. Diffuse 99mTc- MAA uptake was associated with longer median OS than heterogeneous (22.2 vs. 14.4 months, respectively; P = .047). Subsegmental infusion was associated with longer OS than either lobar or segmental infusion (P = .090). Mean estimated OS was longer in patients with hepatocellular carcinoma (HCC) (34.2 months) than with colorectal carcinoma (CRC) (16.4 months) (P = .044). Patients with both diffuse and heterogeneous patterns were able to show complete response after SIRT. No statistically significant differences were observed between perfusion patterns and PFS or response rates to SIRT.CONCLUSIONAlthough tumor perfusion patterns from preplanning HAPS analyses are useful for estimating tumor uptake of 90Y, they may not reliably predict hepatic treatment response, as patients with different perfusion patterns can show clinical response to SIRT

Mide ve kolorektal kanseri hastalarda serum CA 72- 4 ve CEA değerlerinin karşılaştırılması

TEZ1245Tez (Uzmanlık) -- Çukurova Üniversitesi, Adana, 1993.Kaynakça (s. 40-47) var.47 s. ; 30 cm.

Zaman serileri analizi kullanarak bina maliyet endekslerinin tahmin edilmesi.

Building cost indices are widely used in construction industry to measure the rate of change of building costs as a combination of labor and material costs. Cost index forecast is crucial for the two main parties of construction industry, contactor, and the client. Forecast information is used to increase the accuracy of estimate for the project cost to evaluate the bid price. The aim of this study is to develop time series models to forecast building cost indices in Turkey and United States. The models developed are compared with regression analysis and simple averaging models in terms of predictive accuracy. As a result of this study, time series models are selected as the most accurate models in predicting cost indices for both Turkey and United States. Future values of building cost indices can be predicted in adequate precision using time series models. This useful information can be used in tender process in estimation of project costs, which is one of the critical factors affecting the overall success of a construction project. Better cost estimates shall enable contractors to produce cash flow forecasts more acurately. Furthermore accurate prediction of future prices is very useful for owners in budget allocations; moreover can help investors to evaluate project alternatives adequately.M.S. - Master of Scienc

Siirt ili Merkez ilçede kırmızı et tüketim alışkanlıkları ve tüketimi etkileyen faktörler

Kırmızı et tüketimi insanların sağlıklı beslenmesinde ve ülkelerin gelişmişlik düzeyinin belirlenmesinde önemli bir faktördür. Bu çalışma Siirt ili Merkez ilçede kırmızı et tüketim alışkanlığını ve tüketimi etkileyen faktörleri incelemek amacıyla yapılmıştır. Veriler tesadüfi örnekleme metoduyla belirlenen 161 kişi ile yüzyüze anket yapılarak elde edilmiştir. Deneklerin yaklaşık olarak yarısı kadınlardan oluşmakta ve çoğunluğu Siirt ilinde sadece ikamet ettiklerini belirtmiştir. Araştırmaya katılanların çoğunluğu lise-lisans derecesine sahip, evli ve orta yaşlı insanlardan oluşmaktadır. Katılımcılar genellikle koyun etini, orta fiyatlı etleri ve alım yeri olarak da kasabı tercih etmektedirler. Katılımcıların kırmızı eti tercih etmesinde alışkanlık başta olmak üzere lezzetli ve sağlıklı olması gibi faktörler de etkili olmuştur. Tüketiciler kırmızı et satın alırken alım yerinin hijyenik olmasına ve ürünlerin etiketli olmasına daha çok dikkat etmişlerdir. Tüketicilerin et tüketim miktarları üzerine ailedeki birey sayısı, aylık ortalama gelir ve aylık ortalama gıda harcaması etkili olmuştur. Sonuç olarak Siirt ilinde daha çok koyun etinin tüketildiği ve bu durumun bölgede küçükbaş hayvancılığın yaygın olmasından ve dolayısıyla alışkanlıktan kaynaklandığı düşünülmektedir

Evaluation of Temperature-Humidity Index Values on Dairy Cattle Farming: The Case of Siirt Province

Turkey is a country with mild climate where four seasons coexist due to its geographical location. Daily average temperature values in summer months (June, July, August, September) can exceed 25 °C. All living organisms can be exposed to heat stress, especially in the Mediterranean and Aegean regions where the humidity and in Southeastern Anatolian Regions where temperature is very high. When assessed for animal production, heat stress can cause significant yield losses in dairy cattle grown in these regions. While some criteria are used to determine and evaluate heat stress, the most commonly used parameter is temperature-humidity index (THI) value. Data obtained from the Siirt meteorology department and from the meteorological stations in the districts were used to determine the temperature humidity index values for Siirt provinces and districts. According to this, temperature humidity index values of Siirt Merkez, Pervari, Baykan, Kurtalan, Şirvan and Eruh districts were 72.43, 67.64, 71.80, 72.34, 71.67 and 68.87, respectively. In the study, the temperature-humidity index values of Siirt province and its districts exceeded 65 or 72 threshold values in June, July, August, and September. However, in terms of heat stress, it is understood that Pervari and Eruh districts are statistically (p<0.05) more suitable for dairy cattle farming than other districts. As a result, in Siirt conditions, adequate cooling systems must be used at times when heat stress occurs for a sustainable dairy cattle farming