Türkiye’de Ekolojik Tarımın Ekonomik Boyutu ve İklim Değişimine Etkisi

Endüstriyel tarımsal üretimin doğal kaynaklar, iklim değişimi ve insan sağlığı üzerindeki olumsuz etkileri her geçen gün daha fazla hissedilmektedir. Havayı, toprağı ve suyu kirletmeyen, insan sağlığına zararı olmayan ve iklim değişimine olumlu etkileri bulunan tarımsal sistemlerin yaygınlaşmasına ihtiyacımız artmaktadır. Yapılan son araştırmalara göre insan kaynaklı karbon salımının yarısına yakını endüstriyel tarım kaynaklıdır. Sürdürülebilir tarım sistemlerinden biri olan ekolojik tarım, toprak ve su başta olmak üzere doğal kaynakları koruyup geliştirebilecek ve iklim değişimi ile mücadele edebilecek bir sistemdir. Ancak üretim şeklinden, pazarlamasına kadar tüm süreçte sürdürülebilirliğin bileşenleri olan sosyal, ekonomik ve çevresel dengeleri gözetmekten uzaklaşan yapısıyla kaygıları artırmaktadır. İkincil verilerin kullanıldığı bu çalışmada, Türkiye’de ekolojik tarımın mevcut durumu ve ekonomik boyutu ortak ilkeler ve iklim değişimine etkisi kapsamında incelenmiş olup, ilgili mevzuat çerçevesinde gelişme boyutları ile limitleri tartışılmıştır. Sürdürülebilir tarımın tüm boyutlarını karşılaması ve iklim değişimine olumlu etkilerinin sağlanabilmesi için ekolojik tarımın felsefe ve ilkelerine uygun yapılması gerekmektedir

Influence of dispersing agents on the solubility of perovskites in water

In this study, solubility behavior of lead magnesium niobate (PMN) powders in water was investigated in the presence of pure polyacrylic acid and polyacrylic acid/polyethylene oxide comb polymers. Experiments were performed by measuring the solubility of PMN in terms of the concentration of Pb+2 and Mg+2 ions in supernatant as a function of pH and dispersing agent dosage. The concentrations of the metal ions in supernatant were found to be affected by the dispersant concentration, stirring time and the suspension pH. Results revealed that both dispersing agents enhance the cation dissolution from PMN surface at pH 9 due to weak (reversible) adsorption and complexation of Pb+2 and Mg+2 by carboxylate groups. On the other hand, under acidic conditions cation dissolution from PMN is inhibited and this was attributed to the strong adsorption of dispersing agents onto the powder surface and formation of a dense polymer layer

Evaluating Organic Cotton Production in Türkiye

Cotton is crucial for Türkiye in terms of its extensive production and added value and employment opportunities. Especially, it is the leading country in the world with regards to yield and fibre quality. Rising awareness about environment conservation as well as health hazards caused by agrochemicals has brought a great alteration in consumer preference towards organic production particularly in developed countries. Textile products made of organic cotton which have contributed to the environment, economy and social development in particular, are started to be preferred. In this study, Türkiye's organic cotton production and its processes were evaluated by SWOT analysis method and solution proposals were presented within the scope of the achieved results. The strength as a result of the SWOT analysis is to have the appropriate geography and climate characteristics both in terms of production and market access. Subsidies and support policies for organic cotton production remained small scaled when the costs are compared to conventional production The most important opportunities are as follows; firstly, cultivation of GMO seeds is banned in the country and secondly, organic cotton regarding quality and fibre length has high demand in market. Higher prices of competing products (such as corn) are defined as the important threats. Türkiye has a good knowledge on organic farming, may enhance its potential of utilization in organic seed-cotton production. It is necessary to support organic cotton production that contribute to environment, economy and development, its cost should be reduced, along with carrying out long term researches to disseminate to farmers

Irgıllı beldesi (Denizli) yerleşim alanının jeolojik ve jeoteknik özellikleri

Geological and geotechnical studies, decisive on land use and development plans, are the basic stage of a modern urbanization. Microzonation studies for development plans are crucial for safe environment and sustainable development. This study is focused on settlement suitability of Irgilli (Denizli) Municipal area. The area is on an alluvium plain where is located on south of Lake Isikli and surrounded by active fault lines. Some geotechnical tests and hydrogeological studies have been performed and the area was classified in terms of settlement characteristics. According to results of this study, it is determined that the southern part of the area is more suitable to settlement than the northern part

Some Non-Destructive Testing Methods: A Comparative Complitation Work

Bu çalışmada, materyallerin kusur analizini gerçekleştirerek güvenli materyal kullanımı sağlayan tahribatsız test yöntemleri incelenmektedir. Tahribatsız test işleminde kullanılacak yöntemin, çalışma şartları açısından test edilecek materyal üzerinde uygulanabilir olması gerekmektedir. Örneğin girdap akımları yöntemi, çalışma şartları gereği ferromanyetik metalleri test edemezken, ferro olmayan metalleri test edebilmektedir. Bu şartlar göz önüne alınarak seçilen test yöntemi ile materyal düzenli aralıklarla tahribatsız muayene edilerek kusurlu materyal bölgeleri tespit edilmektedir. Bu şekilde güvenli materyal kullanımı sağlanarak büyük maddi kayıplar önlenmiş olur. Tahribatsız test yöntemlerinin bir kısmı güvenilir sonuçlar üretmesi açısından endüstride yaygın olarak kullanılmaktadır. Bu bağlamda manyetik kaçak akı, akustik emisyon, ultrasonik, girdap akımları ve radyografi yöntemleri bu çalışmada incelenmiştir. Yöntemlerin işleyiş prensipleri, literatürde yapılmış çalışmalar ve gerçekleştirilmiş deneyler incelenerek açıklanmıştır. Yöntemler karşılaştırmalı olarak seçilen kriterlere göre sınıflandırılmıştır. Bu çalışma ile geniş içeriğe sahip bir derleme ortaya çıkarılmıştır.In this study, nondestructive testing methods, which sustain safe material usage are analyzed by doing defect analysis of material. Method that is used in nondestructive testing process, need to be applicable on testing material in terms of working conditions. For instance; eddy currents method can test nonferrous metals while it cannot test ferromagnetic metals because of working conditions. Considering these conditions, defective material parts are identified by examining chosen testing method and material in regular intervals. Thanks to this way, major financial losses are avoided by sustainig safe material usage. Some parts of nondestructive testing methods are widely used in industry with regard to producing dependable results. In this context, magnetic flux leakage, acoustik emission, eddy currents, and radiography methods are analyzed in this study. Methods’ process principle, works that have done in literature, performed experiments are analyzed and explained. Methods are classified by regarding comperatively selected criteria. With this study, a compilation, having broad content is presented

The magic of frequencies - 432 Hz vs. 440 Hz: Do cheerful and sad music tuned to different frequencies cause different effects on human psychophysiology? A neuropsychology study on music and emotions: Frekansların sihri – 432 Hz 440 Hz’e karşı: Ayrı frekanslara göre akortlanmış neşeli ve hüzünlü müzikler insan psikofizyolojisi üzerinde farklı etkiler yaratır mı? Müzik ve duygular üzerine bir nöropsikoloji araştırması

The present study aims to see whether music (cheerful and sad) tuned to different frequencies (432 Hz vs. 440 Hz) cause different effects on the listener’s emotions. In the research, the effects of cheerful and sad music samples at different frequencies were examined within the framework of variables such as Heart Rate Variability (HRV), emotions felt and mood. The study was carried out with a total of 51 participants (31 women comprising 60.8% of the study group, and 20 men comprising 39.2% of the study group) who have not received music education. The average age of the participants is 22.19 (S = 1.08, range = 20-25). In the study, the activation levels of the autonomic nervous system were assessed using Heart Rate Variability (HRV), whereas the moods of the participants before listening music were assessed using the Profile of Mood States (POMS) scale. Finally, The Geneva Emotional Music Scales (GEMS) was used to assess the potential emotions and mood state to appear after listening music. All music samples used in the study (one cheerful and one sad per participant) were chosen by the relevant participant. The conversion of the samples recorded at 440 Hz tuning frequency, to 432 Hz was carried out with a Max/MSP patch designed specifically for the study. The findings of the study show that the cheerful and sad music tuned to different frequency levels (432 Hz vs. 440 Hz) do not induce significant variation in sympathetic and parasympathetic activation levels. However, regardless of the tuning, the participants who listened cheerful music reported higher levels of relaxation after listening. Moreover, again regardless of the tuning, according to GEMS results, the participants experienced higher levels of sublimity compared to unease, and also higher levels of unease compared to vitality. The analysis regarding cheerful music, in turn, found that the participants, this time, experienced higher levels of vitality compared to sublimity, and higher levels of sublimity compared to unease. In the most comprehensive analysis with no reference to the cheerful or sad character of the sample, the participants who listened 440 Hz pieces reported rather negative mood after listening music compared to the participants who listened 432 Hz pieces. Moreover, men were observed to report even higher levels of negative mood after listening 440 Hz pieces, compared to their mood after listening 432 Hz pieces. All the findings thus reached imply that different tunes lead to variation in reported moods, even though they do not bring about changes in sympathetic and parasympathetic activation levels. ​Extended English summary is in the end of Full Text PDF (TURKISH) file.   Özet Bu çalışmanın amacı, 432 Hz ve 440 Hz frekanslara göre ayarlanmış müziklerin (neşeli ve hüzünlü) duygu oluşumunda bir fark yaratıp yaratmayacağını değerlendirmektir. Farklı frekanslardaki neşeli ve hüzünlü müzik örneklerinin yarattığı etkiler, Kalp Hızı Değişkenliği (KHD), hissedilen duygular ve duygu durumu gibi değişkenler çerçevesinde incelenmiştir. Araştırma, müzik eğitimi almayan 31'i (%60.8) kadın, 20'si (%39.2) erkek toplam 51 kişiyle gerçekleştirilmiştir. Katılımcıların genel yaş ortalaması 22.19’dur (S = 1.08, ranj = 20-25). Çalışmada otonom sinir sistemi aktivasyonunu değerlendirmek için Kalp Hızı Değişkenliği (KHD) ölçümü; müzik dinleme öncesi anlık duygu durumunu (mood) değerlendirmek için Duygu Durumu Profili Ölçeği (POMS) ve müzik dinleme sonrası oluşan muhtemel duyguları değerlendirmek için Cenova Duygu Müzik Ölçeği (GEMS) kullanılmıştır. Çalışmada kullanılan bütün müzik örnekleri (bir neşeli, bir hüzünlü) her bir katılımcının kendisi tarafından belirlenmiştir. 440 Hz akort frekansına göre kaydedilmiş örneklerin 432 Hz frekansa dönüştürülmesi çalışmaya özgü geliştirilmiş bir Max/MSP patch uygulaması ile yapılmıştır. Bulgular, farklı frekanslara (432 Hz ve 440 Hz) göre dinlenen neşeli ve hüzünlü müziklerin, sempatik ve parasempatik aktivasyon düzeyleri arasında anlamlı bir fark yaratmadığını göstermiştir. Ancak akort türünden bağımsız olarak, neşeli müzik dinleyen katılımcılar müzik dinleme sonrası daha fazla gevşeme hissettiklerini bildirmişlerdir. Bunun yanı sıra katılımcıların, akort türünden bağımsız olarak GEMS ölçeğine göre hüzünlü müzik dinleme sonrası yücelik (sublimity) duygusunu canlılık (vitality) ve huzursuzluk (unease) duygusundan daha fazla hissettiği; huzursuzluk duygusunu ise canlılık duygusundan daha fazla hissettiği belirlenmiştir. Neşeli müzik için yapılan analiz sonucunda katılımcıların neşeli müzik dinleme sonrası canlılık duygusunu yücelik ve huzursuzluk duygularından daha fazla hissettiği; yücelik duygusunu ise huzursuzluk duygusundan daha fazla hissettiği görülmüştür. En genel değerlendirmede müzik türünden bağımsız olarak, 440 Hz ile müzik dinleyen katılımcıların 432 Hz ile müzik dinleyen katılımcılara göre müzik dinleme sonrası olumsuz duygu durumunun daha yüksek olduğu; ayrıca erkeklerin kadınlara göre 440 Hz müzikleri dinleme sonrası olumsuz duygu durumunun 432 Hz müzikleri dinleme sonrası olumsuz duygu durumundan daha yüksek olduğu görülmüştür. Elde edilen tüm bulgular akort türünün sempatik ve parasempatik aktivasyon düzeyleri arasında bir farklılaşma yaratmasa da duygu durumu üzerinde bir farklılaşmaya neden olduğunu ima etmektedir

Anesthetic management in endovascular treatment of aortic pathologies

Objective: In this study we aimed to compare the anesthesia methods we used in the endovascular treatment of thoracic and abdominal aorta pathologies and to discuss accompanied by literature. Methods: Our study was carried out be retrospectively assessing a total of 20 patients on whom we had administered endovascular treatment for aortic aneurism and aortic dissection. The demographic features of the patients, their American Anesthesia Association (ASA) scores, laboratory findings, accompanying diseases, whether they smoke, their ejection fraction and the place and type of aortic pathology was recorded. Also the surgical procedure, anesthesia method, the amounts of crystalloids, colloids and blood products used during the surgery, the anesthesia and surgery durations, complications and interventions, duration of stays in intensive care and the hospital in general and the mortality rates were recorded. All cases were provided with standard anesthesia monitoring. Results: A total of 20 (M=15, F=5) cases were included in our study. 16 of our cases were in ASA 3 risk group and 4 were in ASA 4 risk group. While patients who had been administered with thoracic endovascular aortic repair (TEVAR) were all given general anesthesia, seven patients who had been administered with abdominal endovascular aortic repair (EVAR) were given regional and 6 were given general anesthesia and one case was only given sedoanalgesia. While 8 of the patients administered with EVAR had hypertension all of the patients administered with TEVAR had hypertension. No significant differences were found in blood and blood product transfusions, preoperative and postoperative hemoglobin, hematocrit, urea and creatinine values between two groups. Conclusion: In EVAR and TEVAR applications general anesthesia, regional anesthesia, sedoanalgesia accompanied by local anesthesia can be successfully administered depending on the patient’s status and the location of the procedure

Giant Ovarian Tumor Presenting as an Incarcerated Umbilical Hernia: A Case Report

We report a rare case of a giant ovarian tumor presenting as an incarcerated umbilical hernia. A 61-yr-old woman was admitted to the hospital with severe abdominal pain, an umbilical mass, nausea and vomiting. On examination, a large, irreducible umbilical hernia was found. The woman underwent an urgent operation for a possible strangulated hernia. A large, multilocular tumor was found. The tumor was excised, and a total abdominal hysterectomy and bilateral salphingo-oophorectomy were performed. The woman was discharged 6 days after her admission. This is the first report of incarcerated umbilical hernia containing a giant ovarian tumor within the sac

Novel SNARE Complex Polymorphisms Associated with Multiple Sclerosis: Signs of Synaptopathy in Multiple Sclerosis

Background: It is well known that axonal degeneration plays a role in disability in patients with multiple sclerosis, and synaptopathy has recently become an important issue.Aims: To investigate the possible roles of selected synaptic and presynaptic membrane protein genetic polymorphisms (VAMP2, SNAP-25, synaptotagmin, and syntaxin 1A) in patients with multiple sclerosis.Study Design: Case-control study.Methods: A total of 123 patients with multiple sclerosis and 192 healthy controls were included. The functional polymorphisms of specific SNARE complex proteins (VAMP2, synaptotagmin XI, syntaxin 1A, and SNAP-25) were analyzed by polymerase chain reaction.Results: Significant differences were detected in the genotype and allele distribution of 26-bp Ins/Del polymorphisms of VAMP2 between patients with multiple sclerosis and control subjects; Del/Del genotype and Del allele of VAMP2 were more frequent in patients with multiple sclerosis (p=0.011 and p=0.004, respectively). Similarly, Ddel polymorphism of SNAP-25 gene C/C genotype (p=0.059), syntaxin 1A T/C and C/C genotypes (p=0.005), and synaptotagmin XI gene C allele (p=0.001) were observed more frequently in patients with multiple sclerosis. CC, syntaxin rs1569061 1A gene for 33-bp promoter region TC haplotypes, and synaptotagmin XI gene were found to be associated with an increased risk for multiple sclerosis (p=0.012). Similarly, GC haplotype for rs3746544 of SNAP-25 gene and rs1051312 of SNAP-25 gene were associated with an increased risk for multiple sclerosis (p=0.022).Conclusion: Genetic polymorphisms of SNARE complex proteins, which have critical roles in synaptic structure and communication, may play a role in the development of multiple sclerosis