Nearest-neighbor based metric functions for indoor scene recognition

Ankara : The Department of Computer Engineering and the Graduate School of Engineering and Science of Bilkent University, 2011.Thesis (Master's) -- Bilkent University, 2011.Includes bibliographical references leaves 39-44.Indoor scene recognition is a challenging problem in the classical scene recognition domain due to the severe intra-class variations and inter-class similarities of man-made indoor structures. State-of-the-art scene recognition techniques such as capturing holistic representations of an image demonstrate low performance on indoor scenes. Other methods that introduce intermediate steps such as identifying objects and associating them with scenes have the handicap of successfully localizing and recognizing the objects in a highly cluttered and sophisticated environment. We propose a classi cation method that can handle such di culties of the problem domain by employing a metric function based on the nearest-neighbor classi cation procedure using the bag-of-visual words scheme, the so-called codebooks. Considering the codebook construction as a Voronoi tessellation of the feature space, we have observed that, given an image, a learned weighted distance of the extracted feature vectors to the center of the Voronoi cells gives a strong indication of the image's category. Our method outperforms state-of-the-art approaches on an indoor scene recognition benchmark and achieves competitive results on a general scene dataset, using a single type of descriptor. In this study although our primary focus is indoor scene categorization, we also employ the proposed metric function to create a baseline implementation for the auto-annotation problem. With the growing amount of digital media, the problem of auto-annotating images with semantic labels has received signi cant interest from researches in the last decade. Traditional approaches where such content is manually tagged has been found to be too tedious and a time-consuming process. Hence, succesfully labeling images with keywords describing the semantics is a crucial task yet to be accomplished.Çakır, FatihM.S

A Case of Nasopharyngeal Myiasis Caused by Sarcophaga sp.

Myiasis is a parasitic infestation of tissues and body cavities of vertebrates by Diptera larvae. Nasal myiasis is mostly caused by the Sarcophagidae and Calliphoridae families. Many predisposing factors play a role in the appearance of nasal myiasis. In the treatment of the disease, the use of antiseptics together with mechanical cleaning is recommended. In this report, a case of nasopharyngeal myiasis in a 75-year-old patient hospitalized in the intensive care unit is presented. Nine larvae were detected in the patient's nose. Larvae were removed from the area and were cleaned with iodine solution for three days. As a result of macroscopic and microscopic examination, the larvae were identified as the third stage of Sarcophaga sp. in order to prevent myiasis infestations, personnel working in places where the patient is unconscious, such as intensive care units, should daily check the patient's body cavities such as nose, mouth and ear cavities, and perform their care and cleaning

Recent Advances in Health Biotechnology During Pandemic

The outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which emerged in 2019, cut the epoch that will make profound fluctuates in the history of the world in social, economic, and scientific fields. Urgent needs in public health have brought with them innovative approaches, including diagnosis, prevention, and treatment. To exceed the coronavirus disease 2019 (COVID-19) pandemic, various scientific authorities in the world have procreated advances in real time polymerase chain reaction (RT-PCR) based diagnostic tests, rapid diagnostic kits, the development of vaccines for immunization, and the purposing pharmaceuticals for treatment. Diagnosis, treatment, and immunization approaches put for- ward by scientific communities are cross-fed from the accrued knowledge of multidisciplinary sciences in health biotechnology. So much so that the pandemic, urgently prioritized in the world, is not only viral infections but also has been the pulsion in the development of novel approaches in many fields such as diagnosis, treatment, translational medicine, virology, mi- crobiology, immunology, functional nano- and bio-materials, bioinformatics, molecular biol- ogy, genetics, tissue engineering, biomedical devices, and artificial intelligence technologies. In this review, the effects of the COVID-19 pandemic on the development of various scientific areas of health biotechnology are discussed

Evaluation of patients with fibrotic interstitial lung disease: Preliminary results from the Turk-UIP study

OBJECTIVE: Differential diagnosis of idiopathic pulmonary fibrosis (IPF) is important among fibrotic interstitial lung diseases (ILD). This study aimed to evaluate the rate of IPF in patients with fibrotic ILD and to determine the clinical-laboratory features of patients with and without IPF that would provide the differential diagnosis of IPF. MATERIAL AND METHODS: The study included the patients with the usual interstitial pneumonia (UIP) pattern or possible UIP pattern on thorax high-resolution computed tomography, and/or UIP pattern, probable UIP or possible UIP pattern at lung biopsy according to the 2011 ATS/ERSARS/ALAT guidelines. Demographics and clinical and radiological data of the patients were recorded. All data recorded by researchers was evaluated by radiology and the clinical decision board. RESULTS: A total of 336 patients (253 men, 83 women, age 65.8 +/- 9.0 years) were evaluated. Of the patients with sufficient data for diag-nosis (n=300), the diagnosis was IPF in 121 (40.3%), unclassified idiopathic interstitial pneumonia in 50 (16.7%), combined pulmonary fibrosis and emphysema (CPFE) in 40 (13.3%), and lung involvement of connective tissue disease (CTD) in 16 (5.3%). When 29 patients with definite IPF features were added to the patients with CPFE, the total number of IPF patients reached 150 (50%). Rate of male sex (p<0.001), smoking history (p<0.001), and the presence of clubbing (p=0.001) were significantly high in patients with IPE None of the women <50 years and none of the men <50 years of age without a smoking history were diagnosed with IPE Presence of at least 1 of the symptoms suggestive of CTD, erythrocyte sedimentation rate (ESR), and antinuclear antibody (FANA) positivity rates were significantly higher in the non-IPF group (p<0.001, p=0.029, p=0.009, respectively). CONCLUSION: The rate of IPF among patients with fibrotic ILD was 50%. In the differential diagnosis of IPF, sex, smoking habits, and the presence of clubbing are important. The presence of symptoms related to CTD, ESR elevation, and EANA positivity reduce the likelihood of IPF

The frequency of Duchenne muscular dystrophy/Becker muscular dystrophy and Pompe disease in children with isolated transaminase elevation: results from the observational VICTORIA study

IntroductionElevated transaminases and/or creatine phosphokinase can indicate underlying muscle disease. Therefore, this study aims to determine the frequency of Duchenne muscular dystrophy/Becker muscular dystrophy (DMD/BMD) in male children and Pompe disease (PD) in male and female children with isolated hypertransaminasemia.MethodsThis multi-center, prospective study enrolled patients aged 3–216 months with serum alanine transaminase (ALT) and/or aspartate transaminase (AST) levels &gt;2× the upper limit of normal (ULN) for ≥3 months. Patients with a known history of liver or muscle disease or physical examination findings suggestive of liver disease were excluded. Patients were screened for creatinine phosphokinase (CPK) levels, and molecular genetic tests for DMD/BMD in male patients and enzyme analysis for PD in male and female patients with elevated CPK levels were performed. Genetic analyses confirmed PD. Demographic, clinical, and laboratory characteristics of the patients were analyzed.ResultsOverall, 589 patients [66.8% male, mean age of 63.4 months (standard deviation: 60.5)] were included. In total, 251 patients (188 male and 63 female) had CPK levels above the ULN. Of the patients assessed, 47% (85/182) of male patients were diagnosed with DMD/BMD and 1% (3/228) of male and female patients were diagnosed with PD. The median ALT, AST, and CPK levels were statistically significantly higher, and the questioned neurological symptoms and previously unnoticed examination findings were more common in DMD/BMD patients than those without DMD/BMD or PD (p &lt; 0.001).DiscussionQuestioning neurological symptoms, conducting a complete physical examination, and testing for CPK levels in patients with isolated hypertransaminasemia will prevent costly and time-consuming investigations for liver diseases and will lead to the diagnosis of occult neuromuscular diseases. Trial RegistrationClinicaltrials.gov NCT04120168

Bornova ekolojik koşullarında bazı anason hatlarının verim ve kalite özelliklerinin belirlenmesi

Bu araştırmada, Bornova ekolojik koşullarında seçilmiş bazı anason hatlarının bazı verim ve kalite özelliklerinin belirlenmesi amaçlanmıştır. Deneme, Tesadüf Blokları Deneme Desenine göre dört tekerrürlü olarak Ege Üniversitesi Ziraat Fakültesi, Tarla Bitkileri Bölümü deneme alanında, 2017 yılı yetiştirme döneminde yürütülmüştür. Çalışmada bitki materyali olarak, dört farklı kökenli seçilmiş 11 adet hat kullanılmıştır. Araştırmada, bitki boyunun 42.00-49.00 cm, bitkide dal sayısının 5.25-8.75 adet/bitki, meyveli dal sayısının 5.02-6.22 adet/bitki, şemsiye sayısının 6.5-11 adet/bitki, bin tane ağırlığının 3-4 g, biyolojik veriminin 184.50-270.25 kg/da, tohum veriminin 77.62-110.83 kg/da, hasat indeksinin %36.5-47.5, uçucu yağ oranının %2-3 aralığında olduğu tespit edilmiştir. Agronomik ve verim özellikleri bakımından 164, 150 no'lu hatlar ve Çeşme kökenli 31 no'lu hat, uçucu yağ oranı bakımından ise Madrid, Özel Sektör, Çeşme ve Suriye kökenli 213, 146, 31 ve 51 no'lu hatlar en yüksek değerlere sahip olmuşlardır. Çalışma sonucunda, verim ve kalite özellikleri bakımından seçilen üstün hatlar ileride yapılacak anason tohum ıslah çalışmalarında materyal olarak kullanılabilirler.Present research was conducted to determine some agronomic and technological properties of selected anise lines in Bornova ecological conditions. Randomized complete block design was used with four replications in the research area of Department of Field Crops, Faculty of Agriculture, Ege University in 2017. As the material, selected eleven anise lines of four different origin were used. In current research; plant height (42.00-49.00 cm), number of branches/plant (5.25-8.75), number of fruit branches/plant (5.02-6.22), number of umbel/plant (6.5-11.62), 1000-seed weight (3-4 g), biological yield (184.50-270.25 kg/da), seed yield (77.62-110.82 kg/da), harvest index (36.5-47.5%) and essential oil ratio (2-3%) were determined. Highest values for all agronomic and yield attributes were shown by three lines (164, 150 and 31). Whereas in terms of essential oil ratio, lines (213, 146, 31 and 51) Madrid, Private Sector, Çeşme and Syria origins possessed highest values. In future anise breeding programs, selected superior lines in terms of yield and quality attributes can be used as a source material

Surface wave group velocity study of anatolian plate using earthquake station data of disaster and emergency management presidency of Turkey (AFAD)

Bu çalışmada Anadolu ve çevresinin kabuk ve üst manto yapısını belirlemek amacıyla, Magnitüdleri 5.0-6.7 ve odak derinlikleri 5.00 - 29.00 km arasında değişen 15 adet depremin Rayleigh dalgaları grup hızı eğrilerinin ters çözümü yapılarak, kaynak - istasyon arasındaki S-dalgası hız yapısı incelenmiştir. Grup hızları ardışık süzgeç tekniği kullanılarak hesaplanmış ve dispersiyon eğrilerinin ters çözümünden elde edilen S-dalgası hız modelleri hazırlanmıştır. Daha sonra aynı bölgedeki farklı istasyonların S dalgası hız modelleri karşılaştırılarak S dalga hız yapısı belirlenmiştir. Çalışma alanı, kullanılan depremlerin episantrlarının dağılımına ve istasyonların konumuna göre A, B, C, D, E, F, G, H, K olarak 9 ayrı şekilde gruplanmıştır. Çalışmada kullanılan depremler tüm Anadoluyu örnekleyen depremlerden oluşacak şekilde seçilmiştir. Yapılan ters çözümler sonucunda ortalama S dalgası hızı ve kabuk kalınlığı: Anadolu'nun Güneybatı – Kuzeydoğu doğrultusu için 4.30 km/sn ve 35±10 km, Doğudan Orta Anadoluya doğru 4.25 km/sn ve 35±10 km, Batıdan Orta Anadoluya doğru 4.50 km/sn ve 45±10 km, Ege bölgesinin kıyı kesimleri için 4.50 km/sn ve 45±10 km, Ege bölgesinin iç kesimleri için 4.50 km/sn ve 40±10 km, Karadeniz bölgesi için 4.10 km/sn ve 35±10 km, Güneydoğu-Orta Anadolu doğrultusunda 4.10 km/sn ve 45±10 km, Akdenizin doğusundan Doğu Anadoluya 4.60 km/sn ve 40±10 km, Doğu Anadoludan-Orta Akdenize 4.20 km/sn ve 35±10 km, Batı Akdenizden-Orta Karadenize 4.60 km/sn ve 45±10 km hesaplanmıştır.In this study, S-wave velocity structure between source and station is investigated by carrying out inverse solution of Rayleigh waves group velocity curves of 15 earthquakes with magnitudes between 5.0 and 6.7 and focal depths in the range 5.0-29.0 km in order to determine the crust and upper mantle structure of Anatolia. Group velocity dispersion curves are calculated by multi filter technique and S-wave velocity models are obtained from inverse solution of dispersion curves. Then, S-wave velocity structure is determined by comparing S-wave velocity models of different stations in the same region. The study area is grouped as A, B, C, D, E, F, G, H, K according to distribution of earthquake epicenters and locations of stations. Earthquakes used in this study are selected from earthquakes that can model the Anatolian plate. As a result of inverse solutions, average S-wave velocity and crustal depth are calculated as follows: 4.30 km/sec and 35±10 km for Southwest-Northeast direction of Anatolia, 4.25 km/sec and 35±10 km from East to Central Anatolia, 4.50 km/sec and 45±10 km from West to Central Anatolia, 4.50 km/sec and 45±10 km for coastline of Aegean region, 4.50 km/sec and 40±10 km for inner parts of Aegean region, 4.10 km/sec and 35±10 km for Black Sea Region, 4.10 km/sec and 45±10 km from Southeast-Central Anatolia direction, 4.60 km/sec and 40±10 km from East of Mediterranean to East Anatolia, 4.20 km/sec and 35±10 km from East Anatolia to Central Mediterranean, 4.60 km/sec and 45±10 km from West Mediterranean to Central Black Sea