Rektörlüğe Bağlı BölümlerDepartments Under President's Officehttps://hdl.handle.net/11494/10182024-03-28T08:55:13Z2024-03-28T08:55:13ZEvaluation of factors strongly associated with nomophobia using structural equation modelling: A cross-sectional studyÇınar Özbay, SevilÖzbay, ÖzkanAkçam, AysunKanbay, Yalçınhttps://hdl.handle.net/11494/48892023-06-01T10:38:43Z2023-01-01T00:00:00ZEvaluation of factors strongly associated with nomophobia using structural equation modelling: A cross-sectional study
Çınar Özbay, Sevil; Özbay, Özkan; Akçam, Aysun; Kanbay, Yalçın
Aims: Netlessphobia (fear of being without the Internet) and nomophobia (fear of being without a smartphone/
mobile phone) causes anxiety, discomfort, distress or nervousness during non-use of phones. Past studies
assessing factors associated with nomophobia have not reported consistent results, and some uncertainties
persist. Moreover, only a few studies have measured nomophobia among the general population, and no study
has evaluated nomophobia and netlessphobia together. This cross-sectional study determined the factors strongly
associated with nomophobia, with an intent toward reducing nomophobia-related negative consequences.
Methods: The study sample included 523 individuals. ‘Demographic Characteristics Form’, ‘Fırat Nomophobia
Scale’ and ‘Fırat Netlessphobia Scale’ were used as data collection tools. The collected data were analysed using
SPSS 26 and AMOS 23. Structural equation modelling was used for predicting factors associated with nomophobia, and the goodness-of-fit values of this model were investigated.
Results: The variables netlessphobia, age, gender, marital status, education level, average time of daily use and
average number of daily checks of smart devices were included in the estimated baseline model of the study.
Among the independent variables with significant standardised regression coefficients in the model, the effect of
‘netlessphobia’ (91 %) was quite high. The effect of age variable, which was a significant contributor to netlessphobia in the model, was 15 %.
Conclusion: Netlessphobia and age are the factors that are strongly associated with nomophobia.
2023-01-01T00:00:00ZInvestigation of means of biological control of diaporthe foeniculina, a fruit rot agent in lemonTekiner Aydın, NasibeKotan, RecepGuarnaccia, Vladimirohttps://hdl.handle.net/11494/47112023-02-23T12:28:48Z2023-01-01T00:00:00ZInvestigation of means of biological control of diaporthe foeniculina, a fruit rot agent in lemon
Tekiner Aydın, Nasibe; Kotan, Recep; Guarnaccia, Vladimiro
Biological control is successfully applied against fungal diseases that agricultural products are exposed to in the process
from the production stage to reaching the consumer. The aim of this study was to determine the bacterial biological
control agents that can be used against Diaporthe foeniculina of the genus Diaporthe, which is an important fungal disease
agent in lemon. The aim was to investigate the antagonistic activity of 36 bacterial strains belonging to eight different
genera (eight Bacillus megaterium, seven B. subtilis, three B. pumilus, two B. cereus, two Pseudomonas chlororaphis, two
P. flourescens, one B. atrophaeus, three Pantoea agglomerans, one Agrobacterium radiobacter, one Brevibacillus brevis,
one B. choshinensis, one Kluyvera cryocrescens, one Kocuri rosea, one Paenibacillus macerans, one P. putida and one
unidentified), which were isolated from different plants and to determine antagonistic activity against D. foeniculina ET 88
isolate in in vitro conditions. According to the in vitro test results, these bioagent bacterial strains inhibited mycelial
growth of D. foeniculina between 17.86 and 89.29%. TV 53D strain of B. choshinensis (89.29%) was the most effective,
followed by TV 6F strain (86.90%) of B. subtilis, FDG 37 strain (86.90%) of P. fluorescens and A 16 strain (82.74%) of
A. radiobacter. This study will make a significant contribution to the literature as it is the first biological control study
against D. foeniculina. In future studies, it is of great importance to test effective bioagent bacterial strains on lemon fruits
under different storage conditions and to develop commercial preparations of effective bacterial strains.
2023-01-01T00:00:00ZPathogenicity of different rhizobium radiobacter (agrobacterium tumefaciens) isolates and their identification with conventional methodsTekiner Aydın, NasibeKotan, Recephttps://hdl.handle.net/11494/46102023-01-26T08:51:36Z2022-01-01T00:00:00ZPathogenicity of different rhizobium radiobacter (agrobacterium tumefaciens) isolates and their identification with conventional methods
Tekiner Aydın, Nasibe; Kotan, Recep
Rhizobium radiobacter is a significant causal agent that ranks among
the top ten bacteria of molecular plant pathology in the world, has the
largest range of hosts among plant pathogenic bacteria, and limits
production and leads to economic losses in agriculture. The distinctive
feature of the causal agent from other bacteria is the Ti plasmid, the
extrachromosomal structure present in all virulent types. In this
study, virulence of five R. radiobacter isolates (1A, 1B, 2A, 2B and RK
473) isolated from different rootstocks was tested in carrot slices,
squash fruits, kalanchoe leaves, tomato and sunflower seedlings, and
GF677, M9 and MM106 rootstocks, and hypersensitive response tests
were conducted in tobacco plant. The isolates were diagnosed with
biochemical and physiological tests by classical methods. All isolates
formed tumors in carrot slices and squash fruits. 1A, 1B, 2A and 2B
isolates formed tumors in the stem of GF677 peach rootstock, while it
did not form any tumors on the stems of M9 and MM106 rootstocks.
Tumor formation was observed in 1B isolate in the root application of
GF677 peach rootstock, while no tumor formation was observed in
other isolates. RK 473 isolate became pathogenic in M9 and MM106
apple rootstocks, while it was observed that the other isolates did not
form any tumors. It was seen that none of the isolates became
pathogenic in tomato and sunflower root and stem, and kalanchoe leaf
applications. According to the virulence test results, 1B isolate was
found out to be the most virulent isolate. Biochemical and
physiological tests revealed the differences between isolates.; Rhizobium radiobacter, dünyada moleküler bitki patolojisinde ilk on
bakteri içerisinde yer alan, bitki patojeni bakteriler içerisinde en geniş
konukçu dizisine sahip olan, fidan yetiştiriciliğinde üretimi sınırlayan
ve ekonomik kayıplara neden olan önemli bir hastalık etmenidir.
Etmeni diğer bakterilerden ayırıcı özelliği tüm virülent türlerinde
bulunan ekstrakromozomal yapı olan Ti plazmitidir. Bu çalışmada
farklı fidanlardan izole edilmiş beş R. radiobacter izolatının (1A, 1B,
2A, 2B ve RK 473) virülanslıkları havuç dilimi, kabak meyvesi,
kalonşe yaprağı, domates ve ayçiçeği fideleri, GF677, M9 ve MM106
anaçlarında test edilmiş ve tütün bitkisinde aşırı duyarlılık testi
yapılmıştır. İzolatların biyokimyasal ve fizyolojik testler ile klasik
yöntemlerle tanısı yapılmıştır. Tüm izolatlar havuç dilimi ve kabak
meyvesinde ur oluşturmuştur. 1A, 1B, 2A ve 2B izolatları GF677
şeftali anacının gövdesinde ur oluştururken, M9 ve MM106 elma
anaçlarının gövdesinde ur oluşturmamıştır. GF677 şeftali anacının
kök uygulamasında 1B izolatında ur oluşumu gözlemlenirken diğer
izolatlarda ur oluşumu gözlemlenememiştir. RK 473 izolatı M9 ve
MM106 elma anaçlarında patojen olurken, diğer izolatların ur
oluşturmadığı tespit edilmiştir. Tüm izolatların domates kök ve gövde, ayçiçeği gövde ve kalonşe yaprak uygulamalarında patojen
olmadıkları görülmüştür. Virülanslık test sonucunda 1B izolatı en
virülant izolat olarak belirlenmiştir. İzolatlar arasında biyokimyasal
ve fizyolojik test sonuçlarında farklılıklar bulunmuştur.
2022-01-01T00:00:00ZVolkan patlamalarının coğrafi bilgi sistemleri ve uzaktan algılama yöntemleri ile izlenmesi: Cumbre Vieja Volkanı (İspanya) örneğiAkyürek, Özerhttps://hdl.handle.net/11494/45512023-01-13T13:02:44Z2022-01-01T00:00:00ZVolkan patlamalarının coğrafi bilgi sistemleri ve uzaktan algılama yöntemleri ile izlenmesi: Cumbre Vieja Volkanı (İspanya) örneği
Akyürek, Özer
Doğal afetler insanlar için çeşitli kayıplar oluşturan, hayatı kesintiye uğratarak tüm canlıları etkileyen olaylar olarak
tanımlanmaktadır. Volkanlar, yerkürenin var oluşundan günümüze kadar geçen süre içerisinde, doğal yaşamı çeşitli açılardan
etkilemişlerdir. Çeşitli açılardan yararları olduğu gibi (ısınma-jeotermal sular vb.), zararları da olmuştur. Doğal afetlerden bir tanesi
olan volkanik patlamalar insanlık tarihi boyunca birçok yıkıma ve ölüme neden olmuştur ve olmaya devam etmektedir. Günümüz
teknolojisinde volkanik afetlerin izlenmesinde Coğrafi Bilgi Sistemleri ve Uzaktan Algılama araçları, yönetim ve takibin ayrılmaz birer
parçası olarak kullanılmaktadırlar. CBS ve Uzaktan Algılama, modern ve kullanışlı bir veri toplama ve işleme, analiz etme, sorgulama
ve güncelleme araçları olarak kullanılmaktadırlar. Bu çalışmada 19 Eylül - 15 Kasım 2021 arasında geçen süre içerisinde Pleaides1A, CosmoSky Med-radar, GeoEye-1 ve Landsat 8 verileri kullanılarak La Palma adasındaki Cumbre Vieja volkanından çıkan lavların
adada yaşayan insanlara, yapılara ve arazi örtüsüne etkileri incelenmesi amaçlanmıştır. Volkandan çıkan lavların 1,042.07 hektarlık
alana yayıldığı belirlenmiştir. Bu alan içerisinde 2,749 adet binanın tamamen yıkılmış veya kısmen hasar gördüğü yapılan analizlerde
ortaya çıkarılmıştır. Zarar gören ulaşım hatlarının uzunluğu ise 80.1 km’ye ulaşmıştır. Yer yüzey sıcaklığı analizi ile bölgenin patlama
öncesi ve sonrasına ait sıcaklık değişimi incelenmiştir. Yapılan CBS ve UA analizleri sonucunda çeşitli tarım alanları ve ormanlık
alanlar ile birlikte yerleşim alanları ve okyanusun da zarar gördüğü saptanmıştır.; Natural disasters are defined as events that cause various losses for people and affect all living things by interrupting life. Volcanoes
have affected natural life in various ways, from the existence of the earth to the present. While they have benefits in various aspects
(heating-geothermal waters, etc.), they also have harmful effects. Volcanic eruptions, one of the natural disasters, have caused many
destructions and deaths throughout human history and continue to do so. In today's technology, Geographical Information Systems
and Remote Sensing tools are used as an integral part of management and monitoring for monitoring volcanic disasters. GIS and
Remote Sensing are used as modern and useful data collection and processing, analysis, querying, and updating tools. In this study, it
was aimed to examine the effects of lava from Cumbre Vieja volcano on La Palma island on people, structures and land cover, using
Pleiades-1A, CosmoSky Med, GeoEye-1 and Landsat 8 data between 19 September and 15 November 2021. It was determined that the
lava coming out of the volcano spread over an area of 1,042.07 hectares. In this area, it was revealed in the analyzes that 2,749
buildings were destroyed or partially damaged. The length of the damaged transportation lines reached 80.1 km. The Land surface
temperature analysis, the temperature changes of the region before and after the explosion were examined. As a result of the GIS and
UA analyzes, it was determined that various agricultural areas and forest areas, as well as residential areas and the ocean, were also
damaged.
2022-01-01T00:00:00Z