38 research outputs found

    Annual and intradiurnal variation of dominant airborne pollen and the effects of meteorological factors in Çeşme (Izmir, Turkey)

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    PubMed ID: 28965257In this present study, airborne pollen in Çeşme was investigated between February 17, 2012 and February 17, 2014 using the volumetric method. Çeşme, one of Turkey’s most important tourism centers, which attracts numerous local and foreign tourists each year, is a district of Izmir, a province in the western part of Turkey. During the 2-year study, 12,905 pollen grains belonging to 64 taxa (33 arboreal, 31 non-arboreal plants) were detected. However, the 2-year data results revealed that the taxa with the pollen concentration more than 4% in the atmosphere were Cupressaceae/Taxaceae (4268 pollen, 33.07%), Olea europaea (1614 pollen grains, 12.51%), Pinaceae (1085 pollen grains, 8.41%), Quercus spp. (1081 pollen grains, 8.38%), Pistacia spp. (743 pollen grains, 5.76%), and Poaceae (557 pollen grains, 4.32%), all of which comprised 72.44% of the total count. The relationship between the daily pollen counts belonging to these six taxa and the hourly average temperature (°C), daily precipitation (mm), relative humidity (%), and wind speed (km/h) was assessed using the Spearman correlation test, and significant results were determined. During the study, the intradiurnal distribution of the aforementioned pollen varied. The highest pollen concentration was detected between 11:00 a.m. and 6:00 p.m. (first year 30.3%; second year 30.1%). © 2017, Springer International Publishing AG

    A rare association of leiomyosarcoma with squamous cell carcinoma of the larynx: Two cases

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    PubMedID: 23919956Objective: To discuss the histopathogenesis and treatment choices for synchronous tumours of the larynx. Case reports: We present two cases of synchronous laryngeal leiomyosarcoma and squamous cell carcinoma. The first case was an early-stage tumour and the second an advanced-stage tumour of the larynx. Selection of adequate treatment for synchronous tumours is difficult because of different spreading rates and metastatic patterns. Treatment choices for both the primary tumour site and the neck should be related to the stage of the squamous component of the tumour. Conclusion: In such cases, the tumour location, tumour stage and lymphatic metastases must be carefully evaluated in order to make the optimum treatment choice. Treatment evaluation of the neck should be related to the stage of the squamous component of these synchronous tumours. Partial laryngectomy techniques may be preferred if the extent of the disease permits. © JLO (1984) Limited 2013

    2D Cellular Automata with an Image Processing Application

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    This paper investigates the theoretical aspects of two-dimensional linear cellular automata with image applications. We consider geometrical and visual aspects of patterns generated by cellular automata evolution. The present work focuses on the theory of two-dimensional linear cellular automata with respect to uniform periodic and adiabatic boundary cellular automata conditions. Multiple copies of any arbitrary image corresponding to cellular automata find so many applications in real life situation e.g. textile design, DNA genetics research, etc

    Intraoperative assessment of the node-negative neck with frozen section biopsy

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    PubMedID: 18382800Objective: To determine the accuracy of intraoperative assessment of the node-negative (N0) neck with frozen-section biopsy. Methods: In our study, 60 patients (9 women and 51 men) who underwent 88 elective neck dissections with head and neck squamous cell carcinoma, in the Department of Otorhinolaryngology Medical Faculty, Cukurova University, Adana, Turkey, from January 2003 to December 2006, were reviewed retrospectively. Results: Of the 88 clinically preoperatively staged N0 necks, 22 necks (25%) were shown subsequently to have metastatic disease after final pathological assessment. In 16 out of 22 cases, frozen-section biopsy revealed metastatic disease, and surgery was changed to a modified comprehensive neck dissection. In another 6 cases, the sampled lymph nodes were considered negative at frozen-section analysis, and metastatic disease was found in the final histopathologic reports. There was no false-positive result. The specificity and positive predictive values were both 100%. The sensitivity of intraoperative lymph node assessment was 73%, and the negative predictive value was 91%. Conclusion: Intraoperative assessment of the N0 neck with frozen-section biopsy seems to improve the accuracy of staging and may alter the intraoperative treatment strategy

    Quality of life in panic disorder with or without agoraphobia and depression: a 12 weeks follow-up study

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    20th Congress of the European-College-of-Neuropsychopharmacology -- OCT 13-17, 2007 -- Vienna, AUSTRIAWOS: 000251231901216…European Coll Neuropsychopharmaco

    Diagnostic concordance characteristics of oral cavity lesions

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    PubMedID: 24453906Purpose. The objective of this study was to evaluate the diagnostic concordance characteristics of oral cavity lesions by comparing the clinical diagnosis of the lesions with the histopathologic diagnosis. Material and Method. A retrospective analysis was conducted on the patients, who were admitted with oral cavity pathology and underwent biopsy procedure between 2007 and 2011. The oral cavity lesions were classified into 6 different groups as odontogenic cysts, nonodontogenic cysts, odontogenic tumors, nonodontogenic tumors, malignant tumors, and precancerous lesions in accordance with the 2005 WHO classification. The diagnoses were also recategorized into 3 groups expressing prognostic implications as benign, precancerous, and malignant. The initial clinical diagnoses were compared with the histopathologic diagnoses. Data were analyzed statistically. Results. A total of 2718 cases were included. Histopathologic diagnosis did not match the clinical diagnosis in 6.7% of the cases. Nonodontogenic tumors and malignant tumors had the highest misdiagnosis rates (11.5% and 9%, resp.), followed by odontogenic tumors (7.7%), precancerous lesions (6.9%), and odontogenic cysts (4.4%). Clinicians were excelled in diagnosis of benign and precancerous lesions in clinical setting. Conclusion. The detailed discordance characteristics for each specific lesion should be considered during oral pathology practice to provide early detection without delay. © 2013 Ufuk Tatli et al

    The effect of zoledronic acid on middle ear osteoporosis: An animal study

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    PubMedID: 30481855Hearing function in older patients may be related to bone structure. We conducted an experiment to evaluate the effect of zoledronic acid on osteoporotic middle ear ossicles in an animal model. Our subjects were 19 female New Zealand white rabbits (38 ears) weighing 2 to 4 kg. We divided the rabbits into three groups: One group consisted of 6 rabbits with osteoporotic ears that were treated with zoledronic acid; the second group was made up of 8 rabbits with osteoporotic ears that were not treated; a control group included 5 rabbits with normal ears that were untreated. After an oophorectomy, the 6 study rabbits were administered 0.1 ml/kg of zoledronic acid intravenously. All rabbits were sacrificed 16 weeks later, and the middle ear ossicles were removed for investigation under light microscopy. Although osteoporosis enhanced the osteoclastic bone resorption of the ossicles, zoledronic acid enhanced osteoblastic activity on osteoporotic middle ear ossicles. The incidence of osteoporosis was 93.8% in the untreated osteoporosis group and 33.3% in zoledronic acid group-a statistically significant difference (OR: 0.24; 95% CI: 0.09 to 0.58; p < 0.001). Osteoporosis appears to increase the resorption of the middle ear ossicles, a process that can be avoided with zoledronic acid administration. Prevention of the effects of osteoporosis in humans may help decrease the irreversible changes in the middle ear ossicles. © 2018 Medquest Communications LLC. All rights reserved
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