Hardal uçucu yağı ve ana bileşiğinin tek başına ve değiştirilmiş atmosfer uygulamaları ile kombinasyonun Tribolium confusum du Val., 1863 (Coleoptera: Tenebrionidae)'a karşı fümigant etkisi]

This study was carried out in 2017 in Entomology Laboratory of Kahramanmaraş Sütçü İmam University to determine fumigant toxicity of mustard essential oil and its main compound (allyl isothiocyanate) alone and in combination with high concentration (92%) of CO2 or N2 to all life stages of Tribolium confusum du Val., 1863 (Coleoptera: Tenebrionidae) was determined. Preliminary bioassay tests indicated that 10 µl/l of mustard essential oil and allyl isothiocyanate alone resulted in 100% mortality for all life stages of T. confusum without any necessity of CO2 and N2 combinations. Lethal concentration tests indicated that combinations of mustard essential oil or allyl isothiocyanate with 92% CO2 produced 1.8 to 7.3 times reductions in LC90 values for larvae, pupae and adults of T. confusum. Generally, the combinations of mustard essential oil or allyl isothiocyanate with 92% CO2 were more toxic to larvae, pupae and adults of T. confusum than those in combinations with 92% N2 as evidenced by significant decrements in their LC50 and LC90 values. It appears that high concentration of CO2 or N2 might have a synergistic effect on larvae, pupae and adults of T. confusum when exposed together with mustard essential oil or allyl isothiocyanate. In conclusion, this study indicates that combinations of mustard essential oil or its main compound, allyl isothiocyanate with modified atmospheres can be a potential alternative to the most commonly used commercial fumigants, methyl bromide and phosphine. © 2019 Entomological Society of Turkey. All rights reserved

Efficiency of ozone gas treatment against Plodia interpunctella (Hübner) (Lepidoptera:Pyralidae) (Indianmeal Moth) in hazelnut: Poster

In this study, ozone gas at different concentrations (16.7, 33.3 and 66.6 mg/L) were exposed to all biological stages (egg, larva, pupa and adult) placed at top and bottom of the hazelnut for various exposure periods (2, 4 and 6 hours). In biological tests conducted in presence of hazelnuts, 100% mortalities of all biological stages of P. interpunctella placed at top of the commodity were obtained at tested ozone concentrations and exposure periods while it was easier to kill the adult and pupa stages that the larva and egg stages. While it was possible to kill 100% of the adults and pupae placed at bottom of the commodity at tested ozone concentrations and exposure periods, 100% mortality of the larvae and eggs were not obtained at any of the ozone treatments. Generally, the mortalities of all life stages of P. interpunctella placed at bottom of the commodity for ozone treatments were lower than those placed at top of the commodity. It was easy to kill the pupae and adults of P. interpunctella placed at bottom of the commodity while the ozone treatments resulted in low mortalities of the egg and larvae placed at bottom of the commodity. Just as 100% mortalities of the larva and adult stages were not obtained even at the highest ozone concentration for the longest exposure period. In conclusion, in this study, it was observed that ozone gas only at high concentrations can control all biological stages of P. interpunctella in hazelnut and therefore could have an alternative potential for methyl bromide in quarantine applications in short application period.In this study, ozone gas at different concentrations (16.7, 33.3 and 66.6 mg/L) were exposed to all biological stages (egg, larva, pupa and adult) placed at top and bottom of the hazelnut for various exposure periods (2, 4 and 6 hours). In biological tests conducted in presence of hazelnuts, 100% mortalities of all biological stages of P. interpunctella placed at top of the commodity were obtained at tested ozone concentrations and exposure periods while it was easier to kill the adult and pupa stages that the larva and egg stages. While it was possible to kill 100% of the adults and pupae placed at bottom of the commodity at tested ozone concentrations and exposure periods, 100% mortality of the larvae and eggs were not obtained at any of the ozone treatments. Generally, the mortalities of all life stages of P. interpunctella placed at bottom of the commodity for ozone treatments were lower than those placed at top of the commodity. It was easy to kill the pupae and adults of P. interpunctella placed at bottom of the commodity while the ozone treatments resulted in low mortalities of the egg and larvae placed at bottom of the commodity. Just as 100% mortalities of the larva and adult stages were not obtained even at the highest ozone concentration for the longest exposure period. In conclusion, in this study, it was observed that ozone gas only at high concentrations can control all biological stages of P. interpunctella in hazelnut and therefore could have an alternative potential for methyl bromide in quarantine applications in short application period

Preliminary Checking of Some Turkish Diatomaceous Earth Similarities with Commercial Diatomaceous Earths under Scanning Electron Microscope (SEM)

Diatoms are dead bodies of unicellular algae’s and made up of fossilized diatoms in aquatic ecosystems. Diatomaceous earth (DE) is a dust varying in color depending on composition, from white-grey to yellow to red and active ingredient is amorphous silicon dioxide. DEs are commonly used for purification of water, the purification of juices, separation of various oils and chemicals and also used as an insecticide. Mode of action as insecticide which damage occurs to the insects protective wax coat on the cuticle, mostly by sorption and to a lesser degree by abrasion, or both. The result is the loss of water from the insect's body through desiccation resulting in death. The efficacy of DE against insects depends on different physical and morphological characteristics of the diatoms. In present study, image properties of 10 different Turkish DE samples under Scanning Electron Microscope (SEM) were checked and compared similarities with commercial DEs, namely Protector, SilicoSec, Insecto and Pyrisec. SEM image analysis indicated that there were variations in shape and size of dead bodies of diatoms in Turkish and commercial DEs. The shapes of dead bodies of diatoms in Turkish local DE’s named as CBN and BGN were found very similar with those in commercial DE, Silicosec. Local DE coded as DC has a round shape and looks similar to commercial DE of Pyrisec while local DE coded as CAN has triangle shape and its shape was different from those of all other DE samples

Diş hekimliği fakültelerinde kullanılan farklı diş ünitlerinin su ünitlerinin su sistemlerinin geri akım kontaminasyonu açısından değerlendirilmesi

Amaç: Farklı diş koltuk sistemlerine bağlı gerikaçış engelleyici sistemlerin etkinliğinin uzun dönem araştırılması ve farklı branşlara göre gerikaçış sonucu ortaya çıkabilecek çapraz enfeksiyon riskinin belirlenmesidir. Gereç ve Yöntemler: Dişhekimliğinin birbirinden farklı üç branşından çalışma grubu oluşturulmuştur. Bu farklı üç gruptan elde edilen materyaller bakteri varlığı açısından değerlendirilerek gruplar arasındaki farklılık mikrobiyolojik açıdan incelenmiştir. Bulgular: Üç grupta da birçok bakteri kolonisinin izole edildiği görülmekle birlikte üreyen mikroorganizmaların çoğunun çevreden ve ağız florasından sıklıkla izole edilen bakteri kolonileri olduğu görülmüştür. Sonuç: Diş ünit sistemlerinin kontaminasyonu engelleyici sistemlerle donatılmasının son derece önemli olduğu görülmüş, bununla birlikte uzun zamandır kullanılan diş ünit sistemlerinin sıklıkla kontrol edilmesi ve gerektiğinde yenilenmesi sonucuna ulaşılmıştır

De Novo Transcriptome Assembly and Comparative Analysis Elucidate Complicated Mechanism Regulating Astragalus chrysochlorus Response to Selenium Stimuli

Astragalus species are medicinal plants that are used in the world for years. Some Astragalus species are known for selenium accumulation and tolerance and one of them is Astragalus chrysochlorus, a secondary selenium accumulator. In this study, we employed Illumina deep sequencing technology for the first time to de novo assemble A. chrysochlorus transcriptome and identify the differentially expressed genes after selenate treatment. Totally, 59,656 unigenes were annotated with different databases and 53,960 unigenes were detected in NR database. Transcriptome in A. chrysochlorus is closer to Glycine max than other plant species with 43,1 percentage of similarity. Annotated unigenes were also used for gene ontology enrichment and pathway enrichment analysis. The most significant genes and pathways were ABC transporters, plant pathogen interaction, biosynthesis of secondary metabolites and carbohydrate metabolism. Our results will help to enlighten the selenium accumulation and tolerance mechanisms, respectively in plants

Stratejik yönetim ve inovasyon ile rekabet üstünlüğü arasındaki ilişkinin incelenmesi ve örnek bir uygulama

Yüksek lisans tezi.Globalleşmenin getirdiği yüksek yenilik, işletmeleri yoğun bir rekabet ortamına sürüklemektedir. Bu nedenle, bilgi teknolojilerini en verimli şekilde kullanmak ve en iyi kaliteyi amaçlayan ürün ve hizmetlerde farklılık yaratabilen işletmeler ayakta kalabilmektedirler.İşletmelerde stratejik yönetim işletmenin genel işleyişinin yönetimi ile ilgili değil, İşletmenin hayat boyu yaşamını sürdürebilmesini sağlayacak ve ona rakiplerine göre rekabet üstünlüğü sağlayacak, İşletmeye, paydaşlara ve işletmeden faydalanan herkese yüksek getiri sağlayabilecek işlerin yönetimi ile ilgilidir. Rekabet üstünlüğünün elde edilmesi bir işin daha iyi yapılması ya da bir organizasyonun daha yüksek verimle çalıştırılması ile ilgilidir. Literatürde rekabet üstünlüğünü, "bir firmanın müşterilerine daha iyi hizmet vermesini ve bu nedenle daha çok müşteri değeri yaratması" şeklinde tanımlamıştır.İnovasyon; yeni fikirlerin, süreçlerin, ürünlerin veya hizmetlerin geliştirilmesi, kabulü ve uygulamasıdır. Diğer bir ifadeyle inovasyon; yeni fikirleri değer yaratan çıktılara dönüştürmeyi içeren bir süreçtir.İnovasyon sürekliliği olan bir faaliyettir. Bu nedenle, ortaya çıkan, geliştirilerek işler hale getirilen ve sonuçta firmaya rekabet üstünlüğü kazandıracak şekilde pazarlanan bu yeni fikirlerin ortaya çıkarılarak yeni getiriler için kullanılması gerekir. Bu çalışmanın amacı; stratejik yönetim ve inovasyon faaliyetlerinin , Rekabet üstünlüğüne etkisinin araştırılmasıdır. Literatür çalışması sonucu hazırlanan anket formları yüzyüze görüşme tekniği ve e mail ortamında küçük ve orta boy işletme olarak bilinen işletmeler üzerinde uygulanmıştır. Araştırma sonuçlarına göre stratejik yönetim ve inovasyon bağımsız değişkenleri ile bağımlı değişken olan Rekabet üstünlüğü arasında pozitif yönde , anlamlı bir ilişki olduğu belirlenmiştir