Mobile multi-view object image search

High user interaction capability of mobile devices can help improve the accuracy of mobile visual search systems. At query time, it is possible to capture multiple views of an object from different viewing angles and at different scales with the mobile device camera to obtain richer information about the object compared to a single view and hence return more accurate results. Motivated by this, we propose a new multi-view visual query model on multi-view object image databases for mobile visual search. Multi-view images of objects acquired by the mobile clients are processed and local features are sent to a server, which combines the query image representations with early/late fusion methods and returns the query results. We performed a comprehensive analysis of early and late fusion approaches using various similarity functions, on an existing single view and a new multi-view object image database. The experimental results show that multi-view search provides significantly better retrieval accuracy compared to traditional single view search. © 2016, Springer Science+Business Media New York

Anagyrus pseudococci Girault Hymenoptera: Encyrtidae ’nin Farklı Yaştaki Planococcus citri Risso Hemiptera: Pseudococcidae Üzerindeki Bazı Biyolojik Özellikleri

Anagyrus pseudococci’nin bazı biyolojik özelliklerine konukçusu Planococus citri’nin yaşının etkileri 12 ve 18 gün yaşlı nimfleri üzerinde, 28±1°C sıcaklık, % 60-65 orantılı nem, 16:8 aydınlık:karanlık ışıklanma rejiminin sağlandığı iklim odası koşullarında incelenmiştir. Parazitoitin gelişme süresi, ergin ömrü, cinsiyet oranı, bir dişi başına meydana gelen erkek, dişi ve toplam birey sayısı ve kapsüllenme reaksiyonu, ayrıca unlubitin mumyalaşma süresi araştırılmış, bu verilerden faydalanılarak parazitoitin iki farklı yaştaki unlubitler üzerindeki yaşam çizelgesi oluşturulmuştur. A. pseudococci’ nin gelişme süresi ve ömür uzunluğu üzerinde konukçu yaşının önemli bir etkisi olmadığı, dişi bireylerinin gelişme süresinin 12 gün yaşlı turunçgil unlubiti nimflerinde ortalama 13,20±0,092 gün, erkeklerde 12,45±0,11 gün olduğu, 18 gün yaşlı unlubitlerde, dişilerin 13,15±0,18 gün, erkeklerin 12,35±0,15 günde geliştiği tespit edilmiştir. Dişi parazitoitin ömür süresinin erkeklerden daha uzun olduğu ve 12 gün yaşlı unlubitlerde 14,35±0,68 gün, 18 gün yaşlılarda 14,60±0,62 gün sürdüğü belirlenmiştir. Parazitoitin ovipozisyonu 12 gün yaşlı unlubitlerde 11.50±0.44 gün, 18 gün yaşlı unlubitlerde 13.35±0.70 gün sürmüştür. Bir dişi parazitoit başına meydana gelen dişi birey sayısı, 12 gün yaşlı unlubitlerde 13,05±0,55 adet, 18 gün yaşlı unlubitlerde 21,65±1,1 adet, erkek sayısı ise sırasıyla 17,40±0,59 ve 24,40±1,1 adet bulunmuştur. A. pseudococci’nin cinsiyet oranı 12 gün yaşlı unlubitlerde yetiştirilen populasyonda 0,75:1, 18 gün yaşlı unlubitlerde 1:0,88 ♀:♂ olarak belirlenmiştir. A. pseudococci’nin 12 gün yaşlı turunçgil unlubitine bıraktığı yumurtalarının toplam ve etkili kapsüllenme oranı %31.80 ve % 28.30, 18 gün yaşlı unlubitlerde ise % 70.46 ve % 59.11 olduğu saptanmıştır. 12 gün yaşlı turunçgil unlubiti populasyonunda A. pseudococci’nin döl süresi To = 18.71 gün, net üreme gücü Ro = 13.05 dişi/dişi/döl, doğal artış kapasitesi rm 0.137±0.000 dişi/ dişi/ gün iken, 18 gün yaşlı turunçgil unlubiti populasyonunda bu değerler sırasıyla T0 = 13.15 gün, R0 = 21.56 dişi/dişi/döl, rm 0.157±0.000 dişi/ dişi/ gün olarak hesaplanmış ve aralarındaki fark istatistiki olarak önemli bulunmuştu

Endothelial Dysfunction in Breast Cancer In-Vivo Model

Although the endothelial dysfunction is related with tumor development, there is no consensus on the suppressive or supportive effect on tumor growth. The goal of the present study was to evaluate endothelial dysfunction related factors in animal breast cancer model that was developed by administrating endothelial nitric oxide synthase blocking agent, Nitro-L-arginine methyl ester hydrochloride (L-NAME). Endothelial dysfunction related main factors such as nitric oxide synthase, interleukin-6, vascular endothelial growth factor receptor-2 and vascular endothelial cadherin were investigated by immunohistochemically in tumor and carotid artery tissues. In tumor tissues apoptosis was determined by TUNEL assay. The level of endothelin-1 in blood was measured by ELISA. İntima-media thickness of carotid artery was evaluated with Doppler-USG measurements. As a result, in this study it was shown that vascular endothelial growth factor receptor-2, endothelin-1, endothelial nitric oxide synthase, interleukin-6, vascular endothelial cadherin and E-selectin molecules play a role in reducing breast tumor growth based on endothelial dysfunction

The relative importance of factors influencing the surgeons' choice between mastectomy and breast-conserving surgery for women with breast cancer

The authors' aim is to provide breast surgeons' perspectives on the relative importance of the criteria for choosing an appropriate surgery method between mastectomy (total removal of a breast) and breast-conserving surgery (removal of a breast cancer tumor and some of the normal tissue that surrounds it) for women with breast cancer by using the multicriteria decision-making method (MCDM). The Analytic Hierarchy Process (AHP), the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), and Vise Kriterijumska Optimizacija I Kompromisno Resenje (VIKOR) methods are utilized. A decision hierarchy is set with a goal, criteria, and alternatives. We developed our model based on three main criteria, tumor-related, patient-related, and post-operative process-related factors and nineteen sub-criteria, as well as two alternatives, mastectomy and breast-conserving surgery (BCS). An online questionnaire was sent to the breast surgeons; we showed that the most important criteria are post-operative process-related factors, especially the demand for esthetic appearance based on 39 breast surgeons. Conversely, the least significant criteria are tumor-related factors. Furthermore, breast-conserving surgery is selected as the most appropriate surgery method for breast cancer patients using the AHP, TOPSIS, and VIKOR

Effects of adipose and bone marrow-derived mesenchymal stem cells on vaginal atrophy in a rat menopause model

Background & objectives: Vaginal atrophy is characterized by thinning of vaginal epithelial layers and decreased local blood flow. We aimed to evaluate the regenerative effects of Adipose derived mesenchymal stem cells (ADMSC) and Bone marrow derived mesenchymal stem cells (BMDSC) on vaginal atrophy in rat menopause model. Materials and methods: Rats were randomly divided into 4 (four) groups: sham, control, ADMSC, BMDSC. Vaginal epithelial thickness, structure of the lamina propria, blood vessels in the lamina propria, collagen deposition, and muscle structure were evaluated. Anti ER α, VEGF, VEGFR 1, Bax and bcl-2 antibodies were analyzed. Beta actin gene was used as endogenous control. Genetical differences among the groups were compared by using Kruskal Wallis and Mann Whitney U test. p < 0.05 was regarded as statistically significant. Results: Epithelial thickness of ADMSC group was higher than control group, but less than sham group Epithelial thickness of BMDSC group was less than sham group. Lamina propria and muscle tissue of ADMSC and BMDSC groups were found to be similar to sham group. VEGFR-1, VEGF, Bax and ER-α staining levels were higher in ADMSC and BMDSC groups than control group. ADMSC group stained stronger with VEGFR-1 and VEGF than BMDSC group. Bcl-2 staining level was increased in ADMSC applied group. No statistically significant difference was detected in Bax and Bcl-2 genes and Bax-/Bcl-2 ratio. Conclusions: Although genetic expression might have ended and could not be significantly demonstrated, histological and immunohistochemical results favor ADMSC application in vaginal atrophy rather than BMDSC. © 2019 Elsevier B.V