806 research outputs found
What does Hirsch index evolution explain us? A case study: Turkish Journal of Chemistry
The evolution of Turkish Journal of Chemistry (Turk J. Chem) Hirsch index
(h-index) over the period 1995-2005 is studied and determined in the case of
the self and without self-citations. It is seen that the effect of Hirsch index
of Turk J. Chem has a highly positive trend during the last five years. It
proves that Turk J. Chem is improving itself both in quantity and quality since
h-index reflects peer review, and peer review reflects research quality of a
journal.Comment: 5 pages, 3 figure
Effects of plant growth promoting rhizobacteria (PGPR) on yield,growth and nutrient contents in organically growing raspberry
During 2003 and 2005, plant growth promoting effects of two Bacillus strains OSU-142 (N2-fixing) and M3 (N2-fixing and phosphate
solubilizing) were tested alone or in combinations on organically grown primocane fruiting raspberry (cv. Heritage) plants in terms of yield,
growth, nutrient composition of leaves and variation of soil nutrient element composition in the province of Erzurum, Turkey. The results showed
that Bacillus M3 treatment stimulated plant growth and resulted in significant yield increase. Inoculation of raspberry plant roots and rhizosphere
with M3 and/or OSU-142 + M3, significantly increased yield (33.9% and 74.9%), cane length (13.6% and 15.0%), number of cluster per cane
(25.4% and 28.7%) and number of berries per cane (25.1% and 36.0%) compared with the control, respectively. In addition, N, P and Ca contents of
raspberry leaves with OSU-142 + M3 treatment, and Fe and Mn contents of the leaves of raspberry with M3 and OSU-142 + M3 applications
significantly improved under organic growing conditions. Bacterial applications also significantly effected soil total N, available P, K, Ca, Mg, Fe,
Mn, Zn contents and pH. Available P contents in soil was determined to be increased from 1.55 kg P2O5/da at the beginning of the study to
2.83 kg P2O5/da by OSU-142, to 5.36 kg P2O5/da by M3 and to 4.71 kg P2O5/da by OSU-142 + M3 treatments. The results of this study suggest
that Bacillus M3 alone or in combination with Bacillus OSU-142 have the potential to increase the yield, growth and nutrition of raspberry plant
under organic growing conditions
2-Methyl-6-[2-(trifluoromethyl)phenyliminomethyl]phenol
The title compound, C15H12F3NO, is a Schiff base which adopts the phenol–imine tautomeric form in the solid state. The dihedral angle between the aromatic rings is 38.79 (5)°. The molecular structure is stabilized by an intramolecular O—H⋯N hydrogen bond, which generates an S(6) ring. In addition, there is an intramolecular short C—H⋯F contact
Approximate solutions for nonlinear oscillation of a mass attached to a stretched elastic wire
AbstractIn this paper, the approximate solutions of the mathematical model of a mass attached to a stretched elastic wire are presented. At the beginning of the study, the equation of motion is derived in a detailed way. He’s max–min approach, He’s frequency–amplitude method and the parameter-expansion method are implemented to solve the established model. The numerical results are further compared with the approximate analytical solutions for both a small and large amplitude of oscillations, and a very good agreement is observed. The relative errors are computed to illustrate the strength of agreement between the numerical and approximate analytical results
Athletics in Ağrı: The history and its place in Turkish sportsAğrı’da atletizm: Tarihi ve Türk sporundaki yeri
Today, sport is a phenomenon that almost everyone deals with. Athletics is the oldest sport of history and accepted as the base of all other sports. By establishing Turkish Republic athletics has continually grown up in our country, and it has been become locus of interest of a large number of people both dealing actively and following by.The purposes of this article are to share knowledge about the history of athletics in Ağrı province, to take attention to the importance and place of the contributions of this province in Turkish sport, and finally to make suggestions on improving athletics for this province.There is no written source containing detailed information about the history of athletics in Ağrı. We obtained the data by interviews with athletes, managers and workers.Athletics has been the most influential branch of sports and almost become a passion in Ağrı from 1930s to now. Almost everyone from 7 to 70 has great interest in athletics in Ağrı. The province has had very significant success at athletics and it has been a special region that caused athletics to gain successful sportsmen/sportswomen both nationally and internationally up to now.In brief we recommend that scientific methods should be used in detection and training of athletes and collaboration of institutions and organizations is needed to improve athletics in the province.Extended English summary is in the end of Full Text PDF (TURKISH) file.ÖzetSpor, bugün hemen herkesi ilgilendiren bir fenomendir. Atletizm ise dünyanın en kadim sporu ve diğer tüm sporların temeli olarak kabul edilmektedir. Türkiye’de Cumhuriyet Döneminden sonra gelişen atletizm, bir yandan bireylerin aktif olarak yaptığı diğer taraftan toplumun büyük bir kesimi tarafında ilgiyle izlediği bir spordur.Bu çalışmanın amacı Ağrı’da atletizm tarihi hakkında bilgi vermek, Ağrı’nın atletizme yaptığı katkıların Türk sporundaki yeri ve önemine dikkat çekmek ve ayrıca Ağrı’da atletizm sporunun daha ileriye götürülmesi hususunda öneriler sunmaktır.Ağrı’da atletizm tarihi ile ilgili olarak detaylı bilgi içeren yazılı kaynağa rastlanmamıştır. Bu çalışmadaki bilgiler mülakat tekniği ile elde edilmiştir. Çeşitli dönemlerde spor yöneticiliği yapan şahıslar, sporcular ve çalışanlar veri kaynağını oluşturmuşlardır.Ağrı'da atletizm 1930’lu yıllardan günümüze gelinceye kadar en etkili spor dalı olmuş ve neredeyse bir tutku haline dönüşmüştür. Yediden yetmişe hemen herkes Ağrı'da atletizme büyük bir ilgi duymaktadır. Gerek ulusal gerekse uluslararası düzeyde Ağrı ili atletimde önemli başarılara imza atmış ve çok önemli sporcular yetiştirmiştir.Bölgede atletizmin ilerlemesi için sporcu tespiti ve yetiştirilmesinde bilimsel yöntemler kullanılmalı, kurum ve kuruluşlar arasında işbirliği sağlanmalıdır
Beneficial Effects of Quercetin on the Zone of Stasis in an Experimental Burn Model
Objective: In burn injury, the zone of stasis determines the width and depth of the necrosis. Our aim is to show the effectiveness of quercetin on the viability within the zone of stasis in burns of rats. Materials and Methods: Forty-eight rats were divided into three groups. The rats in Group 1 (control group) were only applied the comb burn model; the rats in Group 2 (post-burn group) were administered 50 mg/kg of quercetin intraperitoneally, every day after the burn procedure until euthanasia; and the rats in Group 3 (pre-burn group) were administered 50 mg/kg of quercetin intraperitoneally, every day for 7 days before and after the burn procedure until euthanasia. Results: The living tissue calculated was 85.41% (+/- 14.06) in Group 3, 40.37% (+/- 9.75) in Group 2, and 16.81% (+/- 9.4) in Group 1. The level of apoptosis was 30.0 (+/- 10.8) in Group 3, 33.8 (+/- 08.7) in Group 2, and 37.4 (+/- 11.5) in Group 1. The level of autophagy was 49.50 (+/- 8.58) in Group 3, 27.17 (+/- 5.53) in Group 2, and 21.00 (+/- 5.66) in Group 1. All the differences between the groups were statistically significant (p< 0.01). Conclusion: Quercetin reduces apoptosis and increases autophagy, thereby increasing tissue viability in the zone of stasis of burn injury.Namik Kemal University Research Center [NKUBAP.00.20.AR.15.01]The article was supported under project NKUBAP.00.20.AR.15.01 by the Namik Kemal University Research Center
Bariatrik cerrahi sonrası viseral organ yağ infiltrasyon değişikliklerini izlemenin etkili yöntemi: İdeal IQ sekansı
Aim: The aim of this study is to demonstrate the efficiency of non-invasive imaging method-MR proton density fat fraction (PDFF); ideal IQ
sequence- on detecting the effects of bariatric surgery on liver and pancreatic fatty infiltration.
Materials and Methods: Thirty-nine patients (25 females, 14 males) who underwent bariatric surgery between May 2016 and April 2017 were
analyzed retrospectively in this study. Body mass index (BMI) and body weight (BW) values of all patients were noted one week before and one
month after bariatric surgery, and meanwhile an unenhanced upper abdominal MR imaging was performed. Liver fat fraction (LFF), pancreas
fat fraction (PFF), liver volume (LV) and craniocaudal length of liver (LL) were measured with MR-PDFF and T2 weighted images. Changes in all
parameters after the surgery were recorded and the correlation of these changes with the change in LFF was analyzed.
Results: At the end of first month of bariatric surgery, a significant decrease on mean values of LFF and PFF has been observed along with a decrease
of LV, LL, BW and BMI (p<0.0001). A moderate positive linear correlation was observed between LFF and PFF, LV, LL (r=0.69, 0.61, 0.49; respectively)
while a weak positive linear correlation was noticed between LFF and BMI, BW (r=0.34, 0.21; respectively).
Conclusion: Ideal IQ sequence enables quantitative analysis of fatty infiltration of the liver and pancreas and thus may be used as a non-invasive
tool to monitor the positive effects of the bariatric surgery on fatty infiltration of these visceral organs in the postoperative period.Amaç: Bariatrik cerrahinin karaciğer ve pankreas yağ infiltrasyonu üzerindeki etkilerinin saptanmasında non-invaziv görüntüleme yönteminin-MR
proton dansite yağ fraksiyonu (PDFF); ideal IQ sekansı-etkinliğini göstermeyi amaçladık.
Gereç ve Yöntem: Bu çalışmada Mayıs 2016 ile Nisan 2017 tarihleri arasında obezite cerrahisi geçiren 39 hasta (25 kadın, 14 erkek) retrospektif
olarak incelendi. Tüm hastaların vücut kitle indeksi (VKİ) ve vücut ağırlığı (VA) değerleri bariatrik cerrahiden bir hafta önce ve bir ay sonra kaydedildi
ve bu esnada kontrastsız üst abdomen MR görüntülemesi yapıldı. MR-PDFF ve T2 ağırlıklı görüntülerle karaciğer yağ fraksiyonu (KYF), pankreas
yağ fraksiyonu (PYF), karaciğer hacmi (KV) ve karaciğer kraniyokaudal uzunluğu (KKU) ölçüldü. Ameliyat sonrası tüm parametrelerdeki değişiklikler
kaydedildi ve bu değişikliklerin KYF’deki değişiklik ile korelasyonu analiz edildi. Bulgular: Bariatrik cerrahinin 1. ayının sonunda KYF ve PYF ortalama değerlerinde anlamlı azalma ile birlikte KV, KKU, VA ve VKİ’de azalma gözlendi
(p<0,0001). KYF ile PYF, KV, KKU arasında orta derecede pozitif bir doğrusal korelasyon gözlenirken (sırasıyla r=0,69, 0,61, 0,49), KYF ile VKİ, VA
arasında (sırasıyla r=0,34, 0,21) zayıf bir pozitif doğrusal korelasyon fark edildi.
Sonuç: İdeal IQ sekansı, karaciğer ve pankreasın yağ infiltrasyonunun kantitatif analizini sağlar ve bu nedenle postoperatif dönemde bariatrik
cerrahinin bu viseral organların yağ infiltrasyonu üzerindeki olumlu etkilerini izlemek için non-invaziv bir araç olarak kullanılabilir
High-Order Energy Balance Method to Nonlinear Oscillators
Energy balance method (EBM) is extended for high-order nonlinear oscillators. To illustrate the effectiveness of the method, a cubic-quintic Duffing oscillator was chosen. The maximum relative errors of the frequencies of the oscillator read 1.25% and 0.6% for the first- and second-order approximation, respectively. The third-order approximation has an accuracy as high as 0.008%. Excellent agreement of the approximated frequencies and periodic solutions with the exact ones is demonstrated for several values of parameters of the oscillator
Organization culture and organizational climate of staff in higher education institutions providing sports education
Bu çalışmanın amacı, üniversitelerin spor eğitimi veren yükseköğretim kurumlarında çalışan idari personelin örgüt kültürü ile örgütsel iklimi düzeylerini farklı değişkenler açısından incelemek ve arasındaki ilişkiyi tespit etmektir. Araştırma grubunu, farklı üniversitelerde görev yapan toplam 200 idari personel oluşturmuştur. Veri toplama aracı olarak Harrison (1970) tarafından geliştirilen ve Mamatoğlu (2004) tarafından Türkçe’ye uyarlanan “Örgüt Kültürü Ölçeği” ile Rogg vd., (2001) tarafından geliştirilen ve Özdemir (2006) tarafından Türkçe’ye uyarlanan “Örgütsel Iklim Ölçeği” kullanılmıştır. Verilerin analizinde tanımlayıcı istatistiklerden aritmetik ortalama ve standart sapma tekniklerinden yararlanılmıştır İdari personelin örgüt kültürü ile örgütsel iklimi düzeylerinin, cinsiyet açısından farklılaşıp farklılaşmadığının belirlenmesinde t-testi ve kurumda çalışma süresine göre farklılaşıp farklılaşmadığının belirlenmesinde tek yönlü varyans analizi (Anova) kullanılmıştır. İdari personelin örgüt kültürü ve örgütsel iklimi düzeyleri arasındaki ilişkiyi belirlemede Pearson korelasyon katsayısı tekniği ve yordayıcılığını belirlemek amacıyla da çoklu regresyon analizi kullanılmıştır. Araştırmada elde edilen sonuçlarda; idari personelin algıladığı örgüt kültürü ve örgütsel ikliminin yüksek olduğu görülmüştür. Cinsiyet değişkeni açısından örgüt kültürü ve örgütsel iklimi düzeylerinde anlamlı bir farklılığa rastlanmazken; kurumda çalışma süresi değişkeni açısından anlamlı bir farklılığa rastlanmıştır. Araştırmada örgüt kültürü ölçeği ile örgütsel iklim ölçeği alt boyutları ve genelinde pozitif yönlü anlamlı güçlü bir ilişki görülmüştür. Ayrıca örgüt kültürünün, örgütsel iklimi üzerinde güçlü bir yordayıcı olduğu tespit edilmiştir.The aim of this study is to examine the organizational culture and organizational climate levels of the administrative personnel working in the sports education higher education institutions of universities in terms of different variables and to determine the relationship between them. The research group consisted of 200 administrative personnel working in different universities. The “Organizational Culture Scale” developed by Harrison (1970) and adapted into Turkish by Mamatoğlu (2004) and the “Organizational Culture Scale” developed by Rogg et al., (2001) and adapted into Turkish by Özdemir (2006) “Climate Scale” was used. In the analysis of the data, arithmetic mean and standard deviation techniques from descriptive statistics were used. T-test was used to determine whether the organizational culture and organizational climate levels of the administrative staff differ in terms of gender, and one-way analysis of variance (Anova) was used to determine whether they differ according to the working time in the institution. In order to determine the relationship between the organizational culture and organizational climate levels of the administrative staff, multiple regression analysis was used to determine the Pearson correlation coefficient technique and its predictor. In the results obtained in the research; It has been observed that the organizational culture and organizational climate levels of the administrative staff are high. While there is no significant difference in organizational culture and organizational climate levels in terms of gender variable; A significant difference was found in terms of the variable of working time in the institution. In the study, a strong and positive relationship was observed in the organizational culture scale and organizational climate scale sub-dimensions and overall. In addition, it has been determined that organizational culture is a strong predictor of organizational climate
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