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The cubic congruence x(3)+ax(2)+bx+c equivalent to 0(mod p) and binary quadratic forms F(x, y) = ax(2)+bxy+cy(2)
(Charles Babbage Research Centre, 2007-10) Tekcan, Ahmet; Fen Edebiyat Fakültesi; Matematik Bölümü; AAH-8518-2021; 55883777900
Let F(x,y) ax(2) + bxy + cy(2) be a binary quadratic form of discriminant Delta = b(2) - 4ac for a, b, c is an element of Z, let p be a prime number and let F-p be a finite field. In this paper we formulate the number of integer solutions of cubic congruence x(3) + ax(2) + bx + c equivalent to 0 (mod p) over Fp for two specific binary quadratic forms F-1(k) (x, y) = x(2) + kxy + ky(2) and F-2(k) (x, y) = kx(2) + kxy + k(2) y(2) for integer k such that 1 <= k <= 9. Later we consider representation of primes by F-1(k) and F-2(k).
Multiobjective crashworthiness optimization of graphene type multi-cell tubes under various loading conditions
(Springer, 2021-05) Albak, Emre İsa; Solmaz, Erol; Yıldız, Ali Rıza; Öztürk, Ferruh; Mühendislik Fakültesi; Hibrid ve Elektrikli Taşıtlar Teknolojisi Bölümü; 0000-0001-9215-0775; 0000-0001-9369-3552; 0000-0003-1790-6987; I-9483-2017; DTV-6021-2022; F-7426-2011; FRD-1816-2022; 57191051783; 6507386513; 7102365439; 56271685800
Nature is an important source of inspiration for researchers to create better designs. In this study, graphene type multi-cell tubes is inspired by graphene due to its strong and lightweight mechanical properties. Peak crushing force (PCF), energy absorption (EA) and crushing force efficiency crashworthiness indicators have been taken into consideration under different loading angles, and the complex proportion assessment (COPRAS) which is a multicriteria decision-making method has been used to determine the best model. The best model is found to be GTMT5 (second-order and third-order hollow cylinders in the graphene type multi-cell tube) by the COPRAS selection method. The multiobjective optimization, whose objective is to minimize PCF and maximize EA, is applied on the GTMT5 using the multiobjective particle swarm optimization and non-dominated sorting genetic algorithm II methods, and the techniques are compared. The optimization study is carried out on the radial basis function metamodels. This study shows that circular structures placed in multi-cell tubes have a significant effect on the crashworthiness performance.
Contingent role of phoenixin and nesfatin-1 on secretions of the male reproductive hormones
(Wiley, 2019-12) Güvenç, Gökçen; Altınbaş, Burçin; Kaşıkçı, Esra; Özyurt, Ebru; Baş, Ayşenur; Udum, Duygu; Niaz, Nasir; Yalçın, Murat; Veteriner Fakültesi; 0000-0002-1413-3651; 000-0002-9534-736X; 0000-0003-1591-510X; 0000-0001-7052-1694; 0000-0002-5600-8162; AAR-6815-2021; IYS-2646-2023; CZB-8484-2022; GDW-7164-2022; AAH-5167-2021; AAC-4975-2022; AAG-6956-2021; 56529426800; 55356919300; 57209073902; 57211540698; 57211534062; 31967936400; 7060367600; 57192959734
Phoenixin (PNX) and nesfatin-1 are localised in the hypothalamus and the pituitary gland. Moreover, the most of the PNX-expressing neurons in the hypothalamus also co-express nesfatin-1. These outcomes may suggest that there is an interaction between PNX and nesfatin-1, at least in terms of neuroendocrine-mediated regulations. Hence, the study was planned to find out the effects of centrally delivered PNX and nesfatin-1 on male sex hormones or to show the interactive association of intracerebroventricularly (ICV) injected PNX+nesfatin-1 combination on the release of male hormones. PNX and nesfatin-1, single or together, were delivered ICV to different male Wistar Albino rat groups. Both PNX and nesfatin-1 induced a significant enhancement in plasma FSH, LH and testosterone without inducing any alteration in plasma GnRH in the rats. The central combinatorial treatment of both the neuropeptides produced a more potent rise in male plasma hormone levels than treating with single neuropeptide. In summary, our preliminary data show that centrally delivered PNX and nesfatin-1 can affect plasma male hormone levels. Moreover, that the combinatorial treatment with both the neuropeptides in male rats leading to a more potent effect on the plasma male hormone levels might suggest that both these neuropeptides act synergistically in terms of regulation of male HPGA.
Assessment of severity and risk factors of post-thrombotic syndrome in vascular Behcet disease: muticentered retrospective study
(Clinical and Experimental Rheumatology, 2018) Aksoy, Aysun; Çolak, Seda; Omma, Ahmet; Ergelen, Rabia; Direskeneli, Rafi Haner; Alibaz, Öner Fatma; Yağız, Burcu; Coşkun, Belkıs Nihan; Bolca, Naile; Tıp Fakültesi; Radyoloji Bilim Dalı; 0000-0003-0298-4157; JQW-5031-2023; AAG-7155-2021; EKW-9201-2022
How personal response systems promote active learning in mathematics in secondary education
(IATED, 2013) Göktalay, Şehnaz Baltacı; Eğitim Fakültesi; Bilgisayar ve Öğretim Teknolojileri Öğretmenliği Bölümü; 0000-0001-7826-7301; AAH-5144-2021
This study describes an initiative in a mathematics classroom where PRS technology was used to support in-class discussion and evaluation with students. The purpose of this study is to examine the factors that influence secondary school students' acceptance PRS integration in the classroom. The study examines the effects of Unified Theory of Acceptance and Use of Technology (UTAUT) variables on secondary school students' acceptance. The following research question is addressed: Do the UTAUT variables (performance expectancy, effort expectancy, social influence, perceived playfulness, anxiety, behavioural intentions) influence secondary school students' acceptance of PRS integration? Participants included 61 secondary school students. The quantitative component of this research utilized a 56-item survey examining students' perception and acceptance of PRS use. The qualitative component involved focus group discussion with a random sample of surveyed students. Students are also observed to see their use of PRSs in class. Students provided positive feedback regarding the use of PRSs. Students requested the increase in use because they felt the use of PRSs supported and improved their classroom learning. They also enjoyed the peer discussions that instructors facilitated with regard to the use of clickers.
Search for ηc(2S)hc→ pp¯ decays and measurements of the χcJ→ pp¯ branching fractions
(American Physical Society, 2013-12-03) Tapan, İlhan; Fen Edebiyat Fakültesi; Fizik Bölümü; CCD-9486-2022; 8905787000
Using a sample of 1.06 × 108φ(3686) events collected with the BESIII detector at BEPCII, the decays ηc(2S) → pp¯ and hcpp¯ are searched for, where ηc(2S) and hc are reconstructed in the decay chains φ(3686) → γηc(2S), ηc(2S) → pp¯ and χ(3686) → π0hc, hc→ pp¯, respectively. No significant signals are observed. The upper limits of the product branching fractions are determined to be B(φ(3686) → γηc(2S)) × B(ηc(2S) → pp¯) < 1.4 × 10-6and B(φ(3686) → π0hc) × B(hc→ pp¯) < 1.3 × 10-7at the 90% C.L.. The branching fractions for χcJ→ pp¯ (J = 0, 1, 2) are also measured to be (24.5 ± 0.8 ± 1.3, 8.6 ± 0.5 ± 0.5, 8.4 ± 0.5 ± 0.5) × 10-5, which are the world's most precise measurements. © 2013 American Physical Society.
Validation of Turkish version of newest vital sign scale to assess health literacy
(Galenos Publishing House, 2021-04) Çiftçi, Fatih; Demirci, Hakan; Çiftçi, Hilal; Ocakoğlu, Gökhan; Tıp Fakültesi; Temel Tıp Bilimleri Bölümü; HLG-6346-2023
Objective: The aim of the study was to check Turkish validation ofthe Newest Vital Sign (NVS) scale.Methods: The participants were composed of the patients whowere registered in a Family Health Center located in Bursa betweenSeptember 2016 and February 2017. The subjects selected byrandom sampling method and they were invited to the study. Theresearch was performed by applying survey with the face to facemethod to the participants.Results: Turkish version of the NVS scale is a valid tool to assesshealth literacy. Cronbach alpha coefficient was calculated as 0.720for NVS scale. Receiver Operating Characteristic analysis revealed acut-off point for the NVS scale which was 4. According to the NVSscale, 57.9% of the participants had an adequate health literacylevel.Conclusion: This sample was found to be adequate for validationanalysis of NVS scale. NVS is a reliable and valid tool to evaluatehealth literacy among Turkish population and the cut-off point forthe scale is 4. Health literacy is inadequate for less than half of thepeople living in our region.
Measurement of the branching fraction for ψ(3686) → ωK+K-
(American Physical Society, 2014-06-24) Tapan, İhan; Fen Edebiyat Fakültesi; Fizik Bölümü; CCD-9486-2022; 8905787000
With 1.06 x 10(8) psi(3686) events collected with the BESIII detector, the branching fraction of psi(3686) -> omega K+K- is measured to be (1.54 +/- 0.04 +/- 0.11) x 10(-4). This is the most precise result to date, due to the largest psi(3686) sample, improved signal reconstruction efficiency, good simulation of the detector performance, and a more accurate knowledge of the continuum contribution. Using the branching fraction of J/psi -> omega K+K-, the ratio B(psi(3868) -> K+K-)/B(J/psi -> K+K-) is determined to be (18.4 +/- 3.7)%. This constitutes a significantly improved test of the 12% rule, with the uncertainty now dominated by the J/psi branching fraction.
Cationic Pd(II)/Pt(II) 5,5-diethylbarbiturate complexes with bis(2-pyridylmethyl)amine and terpyridine: Synthesis, structures,DNA/BSA interactions, intracellular distribution, cytotoxic activity and induction of apoptosis
(Elsevier Science, 2015-11) Büyükgüngör, Orhan; İçsel, Ceyda; Yılmaz, Veysel Turan; Kaya, Yunus; Durmuş, Selvi; Sarımahmut, Mehmet; Ulukaya, Engin; Fen Edebiyat Fakültesi; Tıbbi Biyokimya Ana Bilim Dalı; 0000-0003-3792-1607; 0000-0003-2647-5875; 0000-0002-2849-3332; 0000-0002-2717-2430; AAI-3342-2021; L-7238-2018; DWM-5900-2022; JCN-7113-2023; K-5792-2018; 55551960400; 7006269202; 35181446100; 49060997200; 44661687400; 6602927353
Four new cationic Pd(II) and Pt(II) 5,5-diethylbarbiturate (barb) complexes, [M(barb)(bpma)]X center dot H2O [M = pd(II), X = Cl (1); M = Pt-II, X = NO3- (2)] and [M(barb)(terPY)]NO3 center dot 0.5H(2)O [M = Pd-II (3); M = Pt-II (4)], where bpma = bis(2-pyridylmethyl)amine and terpy = terpyridine, were synthesized and characterized by elemental analysis, IR, UV-vis, NMR, ESI-MS and X-ray crystallography. The DNA binding properties of the cationic complexes were investigated by spectroscopic titrations, displacement experiments, viscosity, DNA melting and electrophoresis measurements. The results revealed that the complexes effectively bind to FS-DNA (fish sperm DNA) via intercalative/minor groove binding modes with intrinsic binding constants (Kb) in the range of 0.50 x 10(4) - 1.67 x 10(5) M-1. Absorption, emission and synchronous fluorescence measurements showed strong association of the complexes with protein (BSA) through a static mechanism. The mode of interaction of complexes towards DNA and protein was also supported by molecular docking. Complexes 1 and 3 showed significant nuclear uptake in HT-29 cells. In addition, 1 and 3 showed higher inhibition than cisplatin on the growth of MCF-7 and HT-29 cells and induced apoptosis on these cells much more effectively than the rest of the complexes as evidenced by pyknotic nuclear morphology. The levels of caspase-cleaved cytokeratin 18 (M30 antigen) in HT-29 cells treated with 1 and 3 increased in a dose-dependent manner, suggesting apoptosis. Moreover, qRT-PCR experiments showed that I and 3 caused significant increases in the expression of TNFRSF10B in HT-29 cells, indicating the initiation of apoptosis via cell surface death receptors.
Effects of ethephone application on different harvesting methods and hulling of walnut husk
(International Society for Horticultural Science, 2014) Yalçın, M.; AcıcaN, T.; Akça, Yaşar; Polat, Refik; Alibaş, Kamil; Ertürk, Ümran; Ziraat Fakültesi; Biyosistem Mühendisliği Bölümü; CAZ-9851-2022; AAG-7343-2021; 20733393300; 7801661220
It is necessary to benefit from mechanization applications to decrease costs in walnut growing. Mechanical harvest especially plays a very important role in decreasing cost of harvesting in the growing period. The kernel of walnut ripens approximately three weeks before the husk (outer green skin) cracks. The husk not ripening at the same time with the kernel makes both traditional and mechanical harvests difficult. In this study, the efficiency of different harvesting methods and the effect on hulling of applied ethephon in walnut trees were investigated. Ethephon at 1000 ppm dose was applied with a turbo pulverizer which is P.t.o. driven until the run-off of the whole trees in the early morning hours. Just before and seven days after (at harvesting time) the ethephon applications, removal force of fruit was measured. After different harvesting methods such as tree trunk shaker, tree branch shaker, and traditional (stick beating) were completed, the comparisons of efficiency and time saving of these methods were carried out. At the end of the study, it was determined that applying ethephone increased the efficiency of the machine. It was investigated that facilitating of disjunction of the fruit by ethephon application increased the success of the mechanical harvest. It was also determined that positive contribution of ethephon was apparent in the hulling of the husk.
To evaluate the differences of risk factors in patients with lower extremity venous disease
(Saudi Medical Journal, 2007-08) Sadıkoğlu, Ganime; Özçakır, Aliş; Ercan, İlker; Özkaya, Güven; Sadıkoğlu, Yurtkuran M.; Tıp Fakültesi; Aile Hekimliği Ana Bilim Dalı; 0000-0001-5588-2037; 0000-0002-2382-290X; 0000-0003-0297-846X; FTO-3267-2022; AAG-8209-2021; ABF-2367-2020; A-4421-2016; INO-2041-2023; 22956348700; 9733230000; 6603789069; 16316866500; 6602402845
Objective: To determine whether there is a difference between risk factors in patients diagnosed to have clinically documented lower extremity venous disease after confirming the diagnosis radiologically by ultrasonographic and venographic evaluation. Methods: This study was performed from January 2002 to January 2005 in Bursa, the fourth biggest city of Turkey, situated in the west of the country in the Marmara Region. The study center is a private imaging center working in conjunction with the Department of Health, which performs diagnostic, and therapeutic vascular protocols in the region. Five hundred and fifty-three cases with clinically and radiologically documented diagnoses were evaluated with Multi-Variate Statistical Package 3.13 for the presence of pre-defined clusters of 14 different variables. Other statistical analyses were performed by the Statistical Package for Social Sciences, version 13.0. Results: Three different clusters were defined. The variables used to define the clusters were: age, gender, educational level, presence of smoking, amount of smoking (pack/per year), disease symptoms, presence of heart disease, and radiologically documented diagnosis. Conclusions: Chronic venous insufficiency and varicose veins are venous system diseases that are most commonly present in association with more than one concomitant risk factor.
User interventions in Turkish mass housing
(Emerald, 2007-06) Akalın, Aysu; Yıldırım, Kemal; Güngör, Can; Yücel, Çiǧdem; Mühendislik Mimarlık Fakültesi; Mimarlık Bölümü; F-5127-2014; 25923652800
The intent and aim of the research was to look at a particular house type i.e. a terraced house with four floors, which is one of the popular designs commonly used in the last ten years in mass housing projects in Turkey. There are four alternatives of the type related with the cross-sectional relationship with the ground floor level. Emphasis was placed upon the "semi-cellar type" assuming that even though the level of residential satisfaction gradually increases with the possibility of interpreting the use of the open-plan floor space, and by proposing new design elements to create more adaptable and flexible spaces, the users may still experience dissatisfaction with designs where the space cannot be revised. With the use of a questionnaire, participants judged their own house as a whole and evaluated its uses for different functions and activities, complained in respect of changes required, and finally outlined their plans for the future. Despite the high level of satisfaction with having a garden (a unique characteristic in apartment-saturated Ankara), the aspect of dissatisfaction mostly referred to was the kitchen-garden relationship (or lack thereof). The residents, especially the older ones, were generally dissatisfied with the multi-storey design of their house. They prefer to remain on the backyard level without changing floors in different seasons. Besides, the users spending the longest time in the house complained more than the others and the people spending variable time in the house stated that they preferred to change the floors in different seasons. As compared to larger families, the smaller families were more likely to change floors.
Epidemiology of colorectal cancer in Turkey: A cross-sectional disease registry study (A Turkish Oncology Group trial)
(AVES, 2015-03-01) Manavoğlu, Osman; Tıp Fakültesi; İç Hastalıkları Ana Bilim Dalı; FLP-9613-2022; 56554133100
Background/Aims: This study aimed to determine the epidemiological characteristics of colorectal cancer in Turkey. Materials and Methods: In this multicenter, prospective, and cross-sectional registry study, data for 968 patients with colorectal cancer from 21 centers in 7 geographic regions were analyzed. Results: Diagnosis was colon cancer in 662 (68.4%) and rectum cancer in 306 (31.6%) patients. In total, 60.9% of patients was male; mean age was 58.9 +/- 12.6 years. Among patients, 15.0% was drinking alcohol, 17.5% was smoking, 1.5% had familial history of polyposis, 15.0% had diabetes mellitus, 1.0% had inflammatory bowel disease. Fruit and vegetable consumption was low (<3 times/week) in 35.5% and red meat consumption was high (>= 3 times/week) in 47.4% of the patients. Median time-to diagnosis was 3.0 months and 4.0 months for patients with colon and rectum cancer, respectively. Mean body mass index was >25 in all group of patients. Distal rectum (61.3%) and sigmoid colon (36.8%) were the most common locations of cancer, for rectum and colon respectively. In total, 85.6% of patients were operated; 25.8% had emergency surgery. Low anterior resection rate was 64.2% in rectum cancer. In majority (89.8%) of the patients with rectum cancer who received preoperative treatment, conventional chemo-radiotherapy regimen was given. pTNM staging at diagnosis showed that stage III and IV patients were in majority (35.9% and 29.7%, respectively). Conclusion: Colon cancer is more frequent than rectum cancer in Turkey. Colorectal cancer patients are diagnosed at later stages. Most of the cases were operated. Interregional differences for risk factors are worthwhile for evaluation in future trials.
Efficacy of plant oils on the control of bean rust and wheat leaf rust
(Parlar Scientific Publications (PSP), 2014) Arslan, Ümit; Ziraat Fakültesi; Bitki Koruma Bölümü; AAH-2890-2021; 8511862400
Bean rust, caused by the fungus Uromyces appendiculatus (Pers.:Pers.) Unger, and wheat leaf rust, caused by the fungus Puccinia triticina Eriks., are economically important foliar diseases and have global significance. The efficacy of eight plant oils (castor, corn, cottonseed, linseed, olive, peanut, soybean and sunflower seed oils) was evaluated as possible alternatives to synthetic fungicides for the control of U. appendiculatus and P. triticina in this study. The percentage of inhibition in urediniospore germination of all tested plant oils ranged from 0 to 100% and 0 to 84.9% against U appendiculatus and P. triticina, respectively. Among these plant oils tested, linseed oil was the most effective on the control of U appendiculatus and P. triticina in both in vitro and pot experiments. It completely inhibited the germination of the urediniospores of U appendiculatus at the highest concentration (2.5%) tested. At the same concentration, linseed oil inhibited by 84.9% the germination of the urediniospores of P. triticina. In pot experiments, control efficacy of all tested plant oils ranged from 0 to 95.2% and 17.8 to 100% against U appendiculatus and P. triticina, respectively. Linseed oil provided 95.2 and 100% control values at 1% concentration against U appendiculatus and P. triticina, respectively. All tested plant oils were found significantly effective in reducing pustules caused by P. triticina at all concentrations tested. Post-infection treatment of linseed oil was ineffective on the control of both U. appendiculatus and P. triticina. In the tests for the inhibition of urediniospore germination as well as reduction in the formation of uredinia (pustules) of both rust species there was an increase in the efficacy of the tested oils as the concentration of the oils increased. None of the tested plant oils were phytotoxic to bean and wheat leaves. The results of this study indicate that tested plant oils could become natural alternatives to synthetic fungicides for the control of tested rust fungi.
Interactions of human chorionic gonadotropin with genotype and parity on fertility responses of lactating dairy cows
(Elsevier, 2019-01) Zolini, A. M.; Ortiz, W. G.; Estrada-Cortes, E.; Ortega, M. S.; Sosa, F.; Hansen, P. J.; Giordano, Julio O.; Dikmen, Serdal; Veteriner Fakültesi; Zootekni ve Hayvan Besleme Bölümü; 0000-0002-5611-4993; A-5731-2018; 8280302600
Fertility-promoting effects of treatment of lactating dairy cattle with human chorionic gonadotropin (hCG) after artificial insemination (AI) have been variable. Here, we tested whether fertility response to hCG in lactating Holstein cows interacts with genotype and parity. Primiparous (n = 538) and multiparous (n = 613) cows were treated with hCG (3,300 IU) or vehicle 5 d after AI. Pregnancy was diagnosed on d 32 and 60 after AI. A subset of cows (n = 593-701) was genotyped for 4 single nucleotide polymorphisms (SNP) previously associated with fertility. Treatment with hCG increased progesterone concentration on d 12 after AI regardless of genotype or parity. Pregnancy per AI was improved by hCG in primiparous cows but riot in multiparous cows. Moreover, hCG treatment interacted with a SNP in coenzyme Q9 (COQ9) to affect fertility. Fertility of cows treated with vehicle was greatest for the AA allele, whereas fertility was lowest for the same genotype among cows treated with hCG. Pregnancy per AI was also affected by genotype for heat shock protein AI-like (HSPA1L) and progesterone receptor (PGR), but no interactions were observed with treatment. Genotype for a SNP in prostate androgen-regulated mucin-like protein 1 (PARM1) was not associated with fertility. Overall, results show that variation in response to hCG treatment on fertility depends on parity and interacts with a SNP in COQ9.
Effect of main and side chain length change of polycarboxylate-ether-based water-reducing admixtures on the fresh state and mechanical properties of cementitious systems
(Wiley-Blackwell, 2020-10) Özen, Süleyman; Ramyar, Kambiz; Altun, Muhammet Gökhan; Mardani-Aghabaglou, Ali; Mühendislik Fakültesi; İnşaat Mühendisliği Bölümü; 0000-0002-9345-9907; 0000-0003-0326-5015; C-7860-2015; CBF-4437-2022; 57203431200; 57669486700
In this study, the effect of both main and side chain length changes of the admixtures on some properties of cementitious systems were investigated. Three different polycarboxylate-ether-based water-reducing admixtures (WRA) having constant molecular weights and different main and side chain lengths were synthesized. Single type of raw material and carboxylate functional group were used in all WRAs. The molecular weights, free nonionic contents, and anionic/nonionic ratios of the admixtures were kept constant. Test results showed that degree of fluidity was observed in cement paste and mortar mixtures in case the admixture main and side chain length is more or less than a critical value. This negative effect is thought to be due to the weakening of the adsorption ability by the chain length change of the admixtures, the being tendency of polymers to intertwine and the adsorbing of admixture on several cement particles simultaneous. Admixtures having excessive long or short main chain and side chain improved the time-dependent slump-flow retention of the mortar mixtures. The admixtures with short main and side chains had insufficient adsorption ability and the admixture with excessive long main and side chains had the interlacing risk of polymers. In both cases, time-dependent behavior improved because the amount of free admixture in solution increased. The change in the chain lengths of the WRAs affected the 1-day compressive strength of the mortar mixtures.
Transnasal or transglabellar semicircular flap for medial canthal reconstruction
(Springer, 2021-12) Yüksel, Nilay Özturk; Meyer, Dale R.; Yazıcı, Bülent; Turgay, Tuba; Göz Hastalıkları Ana Bilim Dalı; 0000-0001-8889-1933; AAA-5384-2020; GHE-5850-2022; 7005398015; 57226380204
Purpose: To review the results of medial canthal reconstruction with the medial (transnasal or transglabellar) semicircular flap. Methods: Medical charts of 38 patients who underwent the described procedure were reviewed. After tumor excision, a semicircular flap created along the nasal bridge or glabella was advanced to the canthal defect; if necessary, this flap was combined with other reconstructive methods. Results: The patients (19 male, 19 female; mean age, 66 years) had basal cell (n = 36) or squamous cell (n = 2) carcinomas. The mean tumor diameter was 9.2 mm (range, 3–21 mm). Tumor epicenters were in the midcanthal area in 21 patients (55%) and in the infra- or supracanthal areas in 17 patients (45%). After excision, 22 patients had only canthal defects, and 16 had an associated upper and/or lower eyelid defect. To cover the defect, the medial semicircular flap alone was used in 19 patients (50%) and in association with other flaps in 19 patients (50%). The excisional defect was primarily closed in 37 patients (97%). Flap necrosis or infection did not occur. During follow-up (range, 1–91 months; median, 19 months), 10 patients (26%) developed a total of 17 complications. Three patients (8%) required secondary surgery for eyelid reconstruction–related complications. Conclusions: Transnasal or transglabellar semicircular flap may be a good alternative for medial canthal reconstruction. For large or complex defects, the medial semicircular flap can be combined with other periocular flaps. In the latter case, postoperative complications requiring secondary surgery may develop.
Predictive factors for postoperative intensive care unit admission in pediatric patients undergoing scoliosis correction surgery
(e-Century Publishing Corporation, 2021) Akesen, Selcan; Tıp Fakültesi; Anesteziyoloji ve Reanimasyon Ana Bilim Dalı; 0000-0002-9518-541X; ELR-9087-2022; 57221719031
Objective: Postoperative intensive care unit (ICU) admission might be required in adolescent patients following posterior fusion and instrumentation surgery for the treatment of scoliosis. We aimed to evaluate the predictive factors for mechanical ventilation and the characteristics of the patients who required an ICU stay following spinal surgery. Methods: We retrospectively reviewed the records of 85 children undergoing primary scoliosis surgery at a university-affiliated general hospital from January 2010 and June 2020 by the same spinal surgeon. The demographic data, pre- and peritoperative variables were collected and recorded. All patients underwent surgery with a combined anesthesia protocol of fentanyl and remifentanil. Results: There were 31 males (36.5%) and 54 females (63.5%). In the postoperative period, 13 patients (15.3%) were admitted to the ICU, and six of them required mechanical ventilation. Among these, three patients (50%) were extubated within the postoperative 0-12 hours, two (33.3%) within postoperative 12-24 hours, and one (16.7) after postoperative 24 hours. The major complications included acidosis (4.7%), hemodynamic instability (1.2%), hypercapnia (1.2%), hypoxemia (1.2%), and delayed extubation (1.2%). Conclusions: A smaller bodyweight percentile, neuromuscular etiology, abnormal findings in preoperative chest X-ray, additional comorbidities, and preoperative estimated risk for postoperative mechanical ventilation were among the risk factors for postoperative ICU stay. The age, height, weight, degree of the curvature, and the number of operated segments did not have an association with the postoperative outcomes.
Researches on the in vitro androgenesis and obtaining haploid plants in some eggplant genotypes
(International Society for Horticultural Science, 2007) Alpsoy, Hüseyin Can; Şeniz, Vedat; Ziraat Fakültesi; Bahçe Bitkileri Bölümü; GLN-9321-2022; DPS-8857-2022; 14821857000; 13604787100
This study was conducted between 1994 and 1999. Anthers were excised from numerous eggplant cultivars and their development on different culture media was investigated. The study was started with preliminary trials in 1994. An average callus formation of 30% was obtained from the anthers excised in these trials, but no haploid embryos. The trials in 1995 were established using for cultivars, namely Pala, Kemer, Topan, and Aydin Siyahi; the anthers were cultured on media supplemented with 4 different combinations of growth regulators at a temperature of 25 C and 16 h day length conditions; and overall callus formation rates of 15.12, 20.00, 24.00 and 26.42% were obtained from these four cultivars, respectively. Eggplant cvs. Kemer and Baluroi and domestic population Urfa Yerlisi were used in the trials in 1996. Callus formation rates ranged from 5.56 to 49.98%. Also the obtaining of embryos was achieved this year. Haploid embryoids and plantlets were obtained from cv. Kemer and from Urfa Yerlisi population. In these genotypes, the anthers were cultured on MS medium supplemented with 4 mg/L NAA plus 1 mg/L kinetin, and on C medium supplemented with 5 mg/L 2, 4-D plus 5 mg/L kinetin. The cultures were held in the hot-air oven at 35 C in dark conditions for the first 8 days, and then they were transferred into the incubator at 25 C and having a day length of 16 h. Embryos were obtained on C and MS medium at the rates of 3.67 and 2.05% respectively, in Urfa Yerlisi. Embryos were also obtained in the trials in 1998, under the same culture conditions. Embryo formation rates were 1.58% on MS medium in cv. Adana; 2.72 and 2.63% on C and MS medium, respectively in ev. Leila. All these embryos could eventually be developed into plantlets.
A species of Nilotonia Thor, 1905 (Acari, Hydrachnidia, Anisitsiellidae) new for the Turkish fauna
(Scientific and Technological Research Council Turkey, 2008) Boyacı, Yunus Ömer; Özkan, Muhlis; Eğitim Fakültesi; JHK-0887-2023; 7103273174
Nilotonia (Manotonia) tegulata (Viets 1951), known previously from Africa and Italy, is new for the Turkish fauna. The morphological features are compared with similar species, and an identification key for subgenera of the genus Nilotonia is given. The subgenus Manotonia is also reported for the first time from Turkey.

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