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Cubic - quartic optical solitons in fiber Bragg gratings with Kerr law of nonlinearity and dispersive reflectivity by Lie symmetry
No full textThe present study derives cubic–quartic optical solitons in fiber Bragg gratings having Kerr law of nonlinearity along with dispersive reflectivity. The Lie symmetry analysis collapses the coupled partial differential equations to a coupled set of ordinary differential equations. They are subsequently solved to recover singular and dark solitons to the model. The numerical simulations support the analytical findings
Investigation of vocational interests, attitudes and satisfaction towards vocational education of 9th and 12th grade students of Vocational Technical and Anatolian High Schools in the maritime field
No full textBu çalışmada 2021-2022 eğitim ve öğretim yılında İstanbul'da Denizcilik alanında eğitim veren Mesleki ve Teknik Anadolu Liselerinin 9. ve 12. sınıf öğrencilerinin mesleki ilgileri, mesleki eğitime yönelik tutum ve memnuniyetleri çeşitli yönlerden araştırılmıştır. Çalışmada, toplam 346 öğrenciye ulaşılmış, verilerin elde edilmesi için Kişisel Bilgi Formu, Mesleki Eğitime Yönelik Tutum Ölçeği, Mesleki İlgi Ölçeği ve Mesleki Memnuniyet Anketi uygulanmıştır. Veriler analiz edilirken iki gruplu karşılaştırmalar için Mann Whitney U testi, ikiden fazla grubun karşılaştırılmasında ise Kruskal Wallis testi kullanılmıştır. Anket ve ölçeklerden alınan ortalamaların ilişkisini belirlemek için Spearman Korelasyon Kat Sayısı testi kullanılmıştır. Elde edilen sonuçlara göre; 12. sınıf öğrencilerinin mesleki memnuniyetleri 9. sınıf öğrencilerine göre daha düşüktür. Erkek öğrenciler, mesleki eğitime yönelik tutum, mesleki hazırbulunuşluk, kendini geliştirme, başkalarına önerme ve mesleki memnuniyet bakımından kız öğrencilere göre daha yüksek ortalamalara sahiptir. Aile gelir düzeyinin mesleki ilgi, mesleki eğitime yönelik tutum ve memnuniyette farklılık yaratmadığı görülmüştür. Ancak ailesinde denizcilik alanında çalışan bulunan öğrencilerin tutum, mesleki memnuniyet, kendini geliştirme, hazırbulunuşluk ve başkalarına önerme düzeyleri, ailesinde denizcilik alanında çalışan bulunmayan öğrencilere oranla daha yüksek çıkmıştır. İlkokul mezunu anneye sahip olan öğrencilerin mesleki seçim farkındalık düzeyleri lise mezunu anneye sahip olan öğrencilere oranla daha yüksek çıkmıştır. Mesleki ilginin tüm alt boyutları, mesleki eğitime yönelik tutum ve mesleki memnuniyet bakımından Mesleki ve Teknik Anadolu Liseleri arasında farklar bulunduğu görülmüştür. Tüm öğrencilerin, mesleki eğitime yönelik tutum, başkalarına önerme, mesleki seçim farkındalığı, mesleki hazırbulunuşluk ve mesleki memnuniyet ortalamalarının yüksek olduğu ancak mesleki ilginin kendini geliştirme alt boyutundaki ortalamalarının düşük olduğu görülmüştürIn this study, the professional interests, attitudes, and satisfaction towards vocational education of the 9th and 12th grade students of Vocational and Technical Anatolian High Schools providing education in the field of seaway in Istanbul in the 2021-2022 academic year were investigated from various aspects. In the study, a total of 346 students were reached, and the Personal Information Form, the Attitudes towards Vocational Education Scale, the Vocational Interest Scale and the Vocational Satisfaction Questionnaire were surveyed. While analyzing the data, Mann Whitney U test was used for two-group comparisons and Kruskal Wallis test was used when comparing more than two groups. In order to determine the relationship between the means taken from the questionnaire and the scales, Spearman Correlation Coefficient test was used. According to the results obtained, 12th grade students' professional satisfaction is lower than 9th grade students. The male students have higher averages than females in terms of attitudes towards vocational education, professional readiness, self-development, recommending others and professional satisfaction. It was observed that family income level did not make a difference in the professional interests, attitudes, and satisfaction towards vocational education. However, the attitudes, professional satisfaction, self-development, readiness and recommendation levels of the students whose family worked in the maritime field were higher than those of the students whose family did not work in the maritime field. The vocational choice awareness level of the students who have a mother who is a primary school graduate was higher than the students who have a mother who is a high school graduate. It has been observed that there are differences among the 5 Vocational and Technical Anatolian High Schools in terms of *all sub-dimensions of vocational interest, attitude towards vocational education and occupational satisfaction. It was observed that the average of all students' attitudes towards vocational education, recommending others, awareness of vocational choice, vocational readiness and occupational satisfaction were high, but the averages of self-development, which is a sub-dimension of professional interest, were low
Current management of renal colic across europe and its compliance to the european association of urology guidelines on urolithiasis: A survey from the european section of uro-technology, european section of urolithiasis, young academic urologists study groups
Get PDFIntroduction Renal colic due to ureteral stones represents the primary acute condition in urology. Although guideline recommendations are available the institution, urologist, and patient preferences in diagnosis and treatment may differ. We aimed to evaluate the adherence of different European countries to the European Association of Urology (EAU) guidelines of urolithiasis and demonstrate trends in diagnostic and treatment approaches. Material and methods We used a survey including 33 questions clustered in four sections. The survey was circulated to the representatives of the main urological centers in Europe using the European Section of Uro-technology (ESUT), the European Section of Urolithiasis (EULIS), the Young Academic Urologists (YAU), and the European Urology Residents Education Programme (EUREP) mailing lists. The first section included participant and institution demographics, the second assessed the common diagnostic and treatment pathways, the third discussed the advantages and disadvantages of treatment strategies and the fourth investigated treatment preferences in different clinical scenarios. A descriptive analysis was performed. Results Of all participants, 84.21% stated that their departments follow specific guidelines, with no significant differences between institutions (p = 0.18). Preferred treatment practice difference in the case scenarios was significantly influenced by the Department bed capacities (p = 0.01), and complications varied between institutions (p = 0.02). Interestingly, 37–45% of participants were unaware of the different treatment costs. Conclusions Although urologists generally decide according to local or international guidelines when approaching renal colic patients, there are deviations in clinical practice due to ‘doctor preference’ and ‘bed availability’. Many urologists are unaware of treatment costs
Computation of zagreb polynomials and zagreb indices for benzenoid triangular & hourglass system
Get PDFIn this article, we study benzenoid Triangular system and benzenoidHourglass system and we compute Zagreb polynomials for benzenoidTriangular system and benzenoid Hourglass system and from these Zagrebpolynomials we catch up degree based Zagreb indices
Treatment of eruption cyst in the maxillary anterior region with diode laser: A case report
No full textErüpsiyon kisti (EK), dişlerin sürmesinden kısa bir süre önce oral mukozada görülen benign bir lezyondur. Yumuşak doku retansiyonu nedeni ile diş sürmesini
geciktirir. Mukozada yumuşak, yuvarlak, mavimsi,
yüzeyden yüksek bir görünüm oluşturur. EK kemik
tutulumu göstermediği için radyografilerde saptanamaz.
EK’nin etiyolojisi kesin olmamakla beraber çürük,
travma, enfeksiyon ve erüpsiyon için yetersiz alan olası
nedenlerdendir. Çoğunlukla asemptomatiktir, ancak ikincil
faktörlere bağlı olarak ağrı görülebilir. EK çoğunlukla
tedavi gerektirmez ve kendiliğinden kaybolur. Yaralanma,
kanama, enfeksiyon varlığında veya estetik sorunlar ortaya
çıktığında cerrahi müdahale gerekir. Bu olgu sunumunda
EK’nin lazerle cerrahi tedavisi sunulmuştur. 8 yaşındaki
çocuk hasta ‘üst sağ ön bölge dişetinde şişlik’ şikâyeti
ile kliniğimize başvurdu. Bölgede çürük birinci keser
süt dişi tespit edildi. Simetrik daimi birinci keser dişin
sürdüğü, ancak radyografik incelemede üst daimi birinci
keser dişin gömülü olduğu görüldü. Lezyon mavi-mor
renkte ve ağrısızdı. Lokal anesteziyi takiben sürmemiş
dişin kronunu açığa çıkarmak hedeflenerek önce ilgili süt
dişi çekildi ardından kist çatısına diyot lazerle horizontal
insizyon yapıldı. Postoperatif iyileşme sorunsuzdu. 1. hafta
kontrolünde kronun açığa çıkmaya başladığı görüldü. 6.
ayda kist tamamen kayboldu ve daimi birinci kesici diş
normal patternde sürdü. Diyot lazer, EK’nin tedavisinde
daha iyi hasta konforu, bakterisidal ve hemostatik etkisi,
sütur gerektirmemesi ve postoperatif ağrı görülmemesi gibi
nedenlerle tercih edilebilir.Eruption cyst (EC) is a benign lesion that appears on the
oral mucosa shortly before tooth eruption. It delays tooth
eruption due to soft tissue retention. This soft, round, bluish
swelling is not detectable on radiographs, because there
is no bone involvement. Although the etiology of EC is
uncertain; caries, trauma, infection and insufficient space
for eruption are possible causes. It is mostly asymptomatic,
but pain may occur due to secondary factors. EC often does
not require treatment and disappear by itself. In the presence
of injury, bleeding, infection or aesthetic problems, surgical
intervention is required. In this case report, laser surgical
treatment of EC is presented. An 8 years old boy with the
complaint of ‘swelling on right upper anterior region’
applied to our clinic. A carious first deciduous incisor
was detected in the region. Symmetrical permanent first
incisor erupted, but radiographic examination revealed
that the upper permanent first incisor was impacted. The
lesion appeared blue-purple and painless. Following local
anesthesia, aiming to expose the crown of the unerupted
tooth, first the relevant deciduous tooth was extracted, then
a horizontal incision was made on the dome of the cyst with
a diode laser. Postoperative healing was uneventful. At the
first week, the crown started to be exposed. At 6th month,
the cyst disappeared completely and permanent first tooth
erupted in normal pattern. Diode laser can be preferred
in the treatment of EC due to better patient comfort,
bactericidal and hemostatic effect, no need for sutures, and
no postoperative pain
Impacts of a cognitive behavioral approach based social skills training on the social skills of freshman students
Get PDFThe present study aims to examine the impacts of CBT-based social skills training on the social skill levels of university freshmen. The sample of the study was comprised of 131 first year university students including experimental design with pre-test, post-test, and follow-up test with the control group. Social Skills Inventory (SSI) was applied to these 131 students and 20 students with scores below the standard deviation of the average were included in the study. The students were randomly assigned to the experiment and control groups in equal numbers. Mann-Whitney U Test, the Friedman test, and Wilcoxon Marked Rank Test was used. According to the results of this research, the SSI scores of the students in the CBT-based social skills group showed a significant increase after the social skills training and the effect of this increase continued in the follow-up study. An increase in the post-test scores of students in the control group received from SSI was also observed, and it was concluded that this increase was not statistically significant. As a result, it has been revealed that social skills training based on CBT is effective in increasing the social skill levels of first year university students
Psychometric properties of the quality nursing care scale-Turkish version: A methodological study
Get PDFAim: To analyze the psychometric properties of the Quality Nursing Care Scale in Turkish Language. Background: The quality of health services and nursing care efectively improves safe patient outcomes and reduces costs in healthcare organizations. There is a need for valid and reliable tools in order to use for evaluating the quality of nursing care. Methods: The methodological and cross-sectional study included 225 nurses working in a research and training hospital. Content validity, construct validity, item analysis, and internal consistency analysis were used. Results: The content validity index of the scale was 0.96. The item-total score correlation values of the items were 0.72 and higher. The factor loads of the items ranged from 0.42 to 0.90. Diferent from the original scale, Turkish form consisted of three sub-dimensions. The ft indices were acceptable or very good. The Cronbach’s alpha internal consistency coefcient was 0.99. Conclusion: The Quality Nursing Care Scale was valid and reliable with its three-factor structure in Turkish Language. It may be used for measuring the quality of care in the aspects of nurses
Future time orientations and the hopelessness levels of preservice music teachers
Get PDFSince individuals’ time perception plays a role in their future plans, goals, and motivation, it has a substantial impact on influencing one’s behaviour. Therefore, it is important to determine the levels of future time orientations, as well as the levels of hopelessness’ in the students towards increasing the levels of reaching the educational goals. The purpose of the present study is to investigate the preservice music teacher’s future time orientations in terms of their genders, grades, and universities attended. As a part of the study, the students’ levels of hopelessness were also analyzed. This included investigating the hopelessness levels of the participants with regards to their universities. The relationship between preservice music teachers’ future time orientations and their levels of hopelessness were also analyzed. A total of 210 music education students participated in this descriptive study. Future Time Orientation Scale which was developed by Gjesme (1979) and Hopelessness Scale which was developed by Beck et al. (1974) were used as data collection tools. According to the results of the study, it was found that preservice music teachers have a mild level of hopelessness which means the participants are not particularly pessimistic. There were significant differences between the preservice music teachers’ future time orientations and their genders, grades and universities. Likewise, there was a significant difference between the participants’ levels of hopelessness and their universities. Also, correlations have been found between the participants’ future time orientations and their levels of hopelessness. The results were discussed in the light of the literature
American, German and Turkish classroom teachers’ opinions about character education: A cross-cultural study
Get PDFThe purpose of this survey research is to analyze and compare the views of classroom teachers on character education in Turkey, Germany and the U.S. In this study, in which descriptive survey method was used, data were collected from 419 teachers from three countries with questionnaire forms. The data were subjected to descriptive analysis. It was determined that character education is influenced by many factors such as family education level, media, internet, social and physical context, and that teachers in all three countries have similar views, only American teachers think differently that "social and physical context" is more important. Character education is mostly practiced in the USA, and to a lesser extent in Germany and Turkey. Teachers of three countries believe that Life & Social studies are the most important lessons that contribute character education. However, character education should be integrated with other curricula with an interdisciplinary approach preferably. Various resources such as meetings, in-school posters, books and thematic projects are used in character education and American teachers use these resources more than other teachers. According to participants, techniques such as observation, interviews, and questionnaires may be used to determine whether character education goals have been achieved. It is seen that the majority of teachers in all three countries are not sure about the possibility to achieve the goals of character education. It may be stated that teachers do not have a very high level of belief in the level of realization of character education goals. According to German teachers, values are less important, but values are acquired at a similar rate, and for Turkish teachers values are very highly important, but not realized at the expected level. In conclusion, the views of teachers from different countries on character education have similar and different aspects
Age-related difculty in post-intubation tracheal stenosis reconstruction: A comparative analysis of CO2-laser, resection and anastomosis, and costal cartilage grafting techniques
No full textBackground: Costal cartilage graft (CCG) sustains primary donor material for laryngotracheal reconstruction in patients with post-intubation tracheal stenosis (PITS). But, the elasticity and viability of CCG decrease elderly. This study was aimed to examine the age factor in PITS cases according to the treatment groups, especially in the tracheal reconstruction surgery with CCG group. Methods: This retrospective study was designed. Patients with a diagnosis of PITS were enrolled. The hazard ratio was calculated with the Cox regression model to define independent risk factors for failure among the variables. Results: Eighty-five patients diagnosed with post-intubation tracheal stenosis (PITS) were enrolled in the study. Restenosis developed in 19 (22.4%) patients. The failure rate in patients aged 40 years and older was 7.5 times higher on average compared to patients under 40 years of age (p = 0.004, 95% CI: 1.6–35.2). Additionally, age group ≥ 40 and CCG treatment group were a significant risk factors for surgical failure (p = 0.012, HR = 0.0003, 95% CI for HR = 0.0000006–0.173, and p < 0.001, HR = 0.001, 95%CI for HR = 0.000025–0.047, respectively). Conclusions: Age and CCG group were detected as independent risk factors for surgical failure, possibly due viability of costal cartilage