61 research outputs found

    The Relationship Between Ethnocentrism with the Purchase Intention: A Research

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    Ethnocentrism can be defined as basing one's own culture as superior in comparison to other cultures. What makes ethnocentrism valuable in this research is to investigate whether ethnocentrism has changed according to current conditions (such as; pandemics, economic crises, the dilemma between countries, etc.) along with how the pandemic affects the Turkish consumer's intention to buy domestic and foreign fast-fashion brands. The data was collected via online by questionnaire. The result of the purchase intention scale research shows that the participants do not care whether the product is domestic or foreign. However, according to the results of the ethnocentrism scale, it is seen that Turkish people have an ethnocentrism degree from middle to a high level. Although there is no significant difference between the brands in the statistical data of the purchase intention scale, it is seen that the ethnocentrism level of the participants is from medium to high level while they verbally stated that they prefer the domestic fast-fashion brand. When the age and ethnocentrism levels of the participants are examined, it is seen that the young participants between the ages of 26-35 have the highest ethnocentrism levels among the age groups in this study. Although several previously published studies have shown that Turkish people, especially the young population, are not ethnocentric, it is seen that those who show medium to high levels of ethnocentrism in this study are from the young population. These results may have resulted from current economic situations and pandemic conditions

    Recovery of tinnitus and sensorineural hearing loss due to lysis of arachnoid adhesions in the posterior cranial fossa: Is there a novel etiology in neurotological disorders?

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    WOS: 000408247500032PubMed ID: 28816700We reported the recovery of sensorineural hearing loss and tinnitus in a 22-year-old man after complete removal of intracranial portion of jugular foramen schwannoma via the retrosigmoid approach. The aim of this case report was to present the excision of a large jugular foramen schwannoma via the retrosigmoid approach and to describe the improvement of sensorineural hearing loss related to arachnoid inflammations due to chronic arachnoiditis after suboccipital craniectomy. The recovery of sensorineural hearing loss and tinnitus after release of arachnoid adhesions may indicate the clinical significance of these adhesions or arachnoiditis, which should also be considered and investigated in the etiology of other neurotological diseases

    EVALUATION OF DRINKING WATER TREATMENT PLANTS IN TERMS OF CAPACITY: THE CASE OF ISTANBUL, ANKARA, AND KOCAELI

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    Global population growth is increasing the pressure on water resources day by day. At the same time, changes in land use, especially due to increased urbanization, affect hydrological processes. Considering both population and urbanization, the management of water resources with the right planning becomes inevitable. In this study, the worst-case scenario was handled and it was investigated how much more the city could meet its water needs if the drinking water treatment plants in the provinces of Istanbul, Ankara and Kocaeli were operating at full capacity. In the analyzes handled with the current water losses, the population projections and the future change in the per capita water need are revealed. According to the results obtained, it was determined that when the existing drinking water treatment plants in Istanbul are used at full capacity, there may be water shortages in 2039. Under the same conditions, it was determined that Ankara would not be able to meet its water needs in 2036. In Kocaeli, it was determined that in 2031, the existing facilities will be insufficient for the water demand. The results of the study showed that the necessary measures should be taken immediately for the water crisis, which is expected to be one of the most important problems of our country in the future

    Betahistin dihidroklorür kullanımı pozisyonel nistagmusu etkiler mi?

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    Aim: In this study, we aimed to investigate the effect of betahistine dihydrochloride (BD) use on positional nystagmus as an objective criterion for the diagnosis of benign paroxysmal positional vertigo (BPPV). Methods: The retrospective study included 59 patients (15 males, 44 females) who were aged between 18 and 80 years and referred with suspected BPPV to the otorhinolaryngology clinic of the Istanbul Training and Research Hospital. Only patients who had no central pathology on oculomotor tests were included. Of the patients included, those not using BD were classified as Group I and those using BD medication (24 mg/day) within the last 48 hours as Group II. The positional nystagmus latency, duration, and slow-phase velocity (SPV) values were compared using videonystagmography. Results: There was no significant difference between the two groups in terms of oculomotor gains (p>0.05). While there was no difference between the two groups in terms of positional nystagmus latency and SPV values, nystagmus duration was found to be significantly longer in Group II. Conclusion: Although the BD use appears to prolong the duration of nystagmus in BPPV, it does not affect the other parameters of nystagmus, including SPV, and the prolonged duration is still within normal limits. Positional nystagmus can be investigated in patients with a history of suspected BPPV and BD prescription.Amaç: Bu çalışmada betahistin dihidroklorür (BD) kullanımının benign paroksismal pozisyonel vertigo (BPPV) tanısında objektif kriter olan pozisyonel nistagmus üzerine etkisini incelemek amaçlanmıştır. Yöntem: Retrospektif çalışmamız yaşları 18–80 yıl aralığında değişen ve BPPV şüphesiyle İstanbul Eğitim ve Araştırma Hastanesi’nin kulak–burun–boğaz polikliniğine yönlendirilen 59 (15 erkek, 44 kadın) hasta içerdi. Çalışmaya yalnızca okülomotor testlerde santral patoloji görülmeyen hastalar dahil edildi. Dahil edilen hastalardan BD kullanmayanlar Grup I, son 48 saat içinde BD grubu ilaç (24 mg/gün) kullananlar ise Grup II olarak tasnif edildi. Pozisyonel nistagmus latans, süre ve yavaş faz hızı (YFH) değerleri videonistagmografi kullanılarak karşılaştırıldı. Bulgular: İki grup arasında okülomotor kazançlar bakımından anlamlı bir fark bulunmadı (p>0,05). Yine iki grup arasında pozisyonel nistagmus latans ve YFH değerleri açısından fark saptanmazken nistagmus süresi Grup II’de anlamlı olarak daha uzun bulundu. Sonuç: BD kullanımı BPPV’de pozisyonel nistagmus süresini uzatıyor gibi görünse de YFH dahil diğer nistagmus parametrelerini etkilememektedir ve süredeki uzama halen normal sınırlar içindedir. BPPV şüphesi ve BD reçeteleme öyküsü olan hastalarda pozisyonel nistagmus araştırılabilir

    Effect of adenoidectomy / tonsillectomy on temporomandibular joint (TMJ) function and mouth opening in early period

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    Bu çalışmada, adenoidektomi ve/veya tonsillektomi yapılan hastalarda ameliyat sırasında kullanılan ağız ekartörüne bağlı olarak ağız açıklığı derecesinde ve temporomandibular eklemde (TME) etkilenme olup olmadığının dijital kumpas aleti kullanıla- rak değerlendirilmesi amaçlandı. Kasım 2015 - Kasım 2016 yılları arasında üçüncü basamak bir KBB kliniği tarafından ağız ekar- törü kullanılarak adenoidektomi ve/veya tonsillektomi ameliyatı yapılan 30 hasta (6-43 yaşları arası, 17’si erkek ve 13’ü kadın) ile, kontrol grubu olarak septoplasti ameliyatı olan 20 hasta (19- 47 yaşları arası, 12’si erkek ve 8’i kadın ) olmak üzere toplam 50 hastanın ağız çene açıklığı dijital kumpas aleti ile ameliyattan 1 saat önce, 4 saat sonra, 1 hafta sonra ve 1 ay sonra olmak üzere ölçüldü. Adenoidektomi ve/veya tonsillektomi yapılan hastalarda operasyon sonrası 4. saat, 1 hafta sonrası ve 1 ay sonrası ağız açıklığı ölçümlerindeki değişim istatistiksel olarak anlamlı bulun- muştur (p=0,001, p0,05). Her iki gruptaki ağız açıklığı ölçümlerinin yaş ile ilişkisi- ne bakıldığında; yaşla beraber ağız açıklığındaki artışın da %57,5 düzeyinde korelasyon gösterdiği saptanmıştır (r: 0,575, p=0,001, p0.05). There is 57.5% positive correlation betwe- en patients’ age, and range of mouth opening in two groups (r:0.575, p=0.001, p<0.01). As a conclusion; mouth opening and TMJ function might be effected by mouth gag in adenoidectomy / tonsillectomy surgeries depending on the duration of surgery and age of the patient. Small sample size and short follow-up period were limitations of the study

    Cochlear implantation in inner ear malformations: Considerations related to surgical complications and communication skills

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    Introduction: There are particular challenges in the implantation of malformed cochleae, such as in cases of facial nerve anomalies, cerebrospinal fluid (CSF) leaks, erroneous electrode insertion, or facial stimulation, and the outcomes may differ depending on the severity of the malformation. The aim of this study was to assess the impact of inner ear malformations (IEMs) on surgical complications and outcomes of cochlear implantation. Methods: In order to assess the impact of IEMs on cochlear implant (CI) outcomes, 2 groups of patients with similar epidemiological parameters were selected from among 863 patients. Both the study group (patients with an IEM) and control group (patients with a normal inner ear) included 25 patients who received a CI and completed at least 1 year of follow-up. Auditory performance, receptive and expressive language skills, and production and use of speech were evaluated preoperatively and at least 1 year after implantation. Types of surgical complications and rates of revision surgeries were determined in each group. Results: In the study group, the most common malformation was an isolated enlarged vestibular aqueduct (EVA) (44.8%). Overall, the patients with IEMs showed significant improvement in auditory-verbal skills. In general, the patients who had normal cochleae scored significantly better compared to patients with IEMs (p < 0.05). The complication rate was significantly lower in the control group compared to the study group (p = 0.001), but the rate of revision surgeries did not differ significantly (p = 0.637). Conclusion: It is possible to improve communication skills with CIs in patients with IEMs despite the variations in postoperative performances. Patients with EVA, incomplete partition type 2, and cochlear hypoplasia type 2 were the best performers in terms of auditory-verbal skills. Patients with IEMs scored poorly compared to patients with normal cochleae. CSF leak (gusher or oozing) was the most common complication during surgery, which is highly likely in cases of incomplete partition type 3

    Bir kalsiyum kanal blokeri olan verapamilin, renal transplant alıcılarında greft üzerine olan etkileri ve siklosporin-verapamil etkileşimi

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    TEZ1165Tez (Uzmanlık) -- Çukurova Üniversitesi, Adana, 1993.Kaynakça (s. 49-54) var.54 s. ; 30 cm.

    Does MESNA application make sense in chronic otitis media surgery?

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    We have read with pleasure the article by Kalcioglu MT. et al. [1] which presents very important clinical observations. We would like to make some comments on this problem, basing on our experience and the literature review. MESNA (sodium 2-mercapto-ethane sulphonate) is a synthetic sulfur compound that produces mucolysis by disrupting disulfide bonds of the mucus polypeptide chain. MESNA can be used during ear surgeries (cholesteatoma or atelectasis), to make the dissection of keratinocyte layers [2,3]. But a question remains over the possible mechanism of action of MESNA in chronic otitis media. Therefore, we would like to share our opinion in this subject

    SEYDİSUYU HAVZASINDA KÜÇÜK ÖLÇEKLİ HİDROELEKTRİK ENERJİ POTANSİYELİNİN ARAŞTIRILMASI

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    Bu makalede, su kaynakları ve hidroelektrik enerji potansiyeli bakımından Seydisuyu havzasının geliştirilmesi hedeflenmiştir. Bu amaçla, Seydisuyu üzerinde planlaması yapılan bir adet barajdan üretilecek elektrik miktarı araştırılmıştır. Bu çalışmada, Coğrafi Bilgi Sistemleri (CBS) yazılımı ve havzaya ait sayısal haritalar kullanılmıştır. Seydisuyu havzasındaki hazır kurulu barajların (Çatören ve Kunduzlar) mansabında bulunan vadinin uygun olması nedeni ile elektrik üretmek için bir adet yeni baraj planlaması da yapılmıştır. Bütün Seydisuyu havzasının su potansiyelini değerlendirmek için Seydisuyu havzasının dağlık kesiminde en az bir adet yeni baraj inşa edilmelidir. Seydisuyu havzasının debi kapasitesi sadece Küçük Hidroelektrik Santrallerin (KHS) kurulması için uygundur. Bu amaçla, ilk olarak, yeni rezervuarın tarihi akım verileri incelenmiştir. Sonra, aylık bazdaki 21 yıllık tarihi debiler analiz edilmiştir. Bu yeni barajın su potansiyeli kullanılarak, 0,62 MW kurulu gücünde ve 2,17 GWh/yıl elektrik üretilebileceği hesaplanmıştır

    Freeze-Thaw Resistance of Normal and High Strength Concretes Produced with Fly Ash and Silica Fume

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    This study is based on determination of the freeze-thaw resistance of air-entrained and non-air-entrained normal strength concrete (NC) and high strength concrete (HSC) produced with fly ash and silica fume according to surface scaling. The procedure allows us to measure the amount of scaling per unit surface area due to a number of well defined freezing and thawing cycles in the presence of deicing salt. The weight loss, surface scaling, moisture uptake, and internal damage were measured after 0 and after every 4th freeze-thaw cycle. The test results showed that the freeze-thaw resistance is influenced directly by the compressive strength property of the concrete. Silica fume significantly reduced the resistance of normal strength concrete against freeze-thaw effect without plasticizing agent. The surface scaling of silica fume concrete without admixture was 22% higher than reference normal concrete
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