96 research outputs found
Intracystic Papillary Carcinoma of the Breast in a Male Patient: A Case Report
Breast carcinoma is an uncommon neoplastic condition among man, accounting for not more than 1% of all breast cancers. Intracystic papillary carcinoma in man is an extremely rare condition and represents only 5–7,5% of all male breast carcinomas. Clinical and radiological manifestations of intracystic papillary carcinomas are not specific. Pathologic diagnosis can be difficult at classical histological examination and identification of myoepithelial cells layer by immunohistochemical study can be useful. Adjuvant therapy is still controversial and prognosis is excellent. We report a case of this rare histological type of breast cancer in 48-year-old male patient and review the literature
An anatomical study on scabiosa hispidula boiss. (Caprifoliaceae)
Taksonomik açıdan karışıklıklar içeren Scabiosa L. cinsi, Caprifoliaceae familyasının en önemli cinslerinden biridir ve ülkemizde
yaklaşık 36 takson ile temsil edilmektedir. Bu çalışmanın amacı Mayıs-Eylül ayları arasında çiçeklenen ve tek yıllık bir bitki olan
Scabiosa hispidula Boiss. türünün, anatomik özelliklerinin belirlenmesidir. Bu amaçla kök, gövde ve yapraklardan alınan enine
kesitler incelenerek fotograflandırılmıştır. Gövde enine kesitinde gözlenen salgı tüyleri ve hidatotlar karakteristiktir.Scabiosa L. genus contains taxonomic confusions is one of the most important genus of the family Caprifoliaceae and is represented
by 36 taxon in Turkey. The aim of this study was to determine the anatomical features of Scabiosa hispidula Boiss. with an annual
and flowering between May and September. For this purpose, cross-sections of root, stem and leaf parts of the plant were examined
and demonstrated by photographs. The glandular hairs and hydathode was observed in the cross-section of stem are characteristics
for S. hispidula
Decreased heart rate recovery may predict a high SYNTAX score in patients with stable coronary artery disease
An impaired heart rate recovery (HRR) has been associated with increased risk of cardiovascular events, cardiovascular, and all‐cause mortality. However, the diagnostic ability of HRR for the presence and severity of coronary artery disease (CAD) has not been clearly elucidated. Our aim was to investigate the relationship between HRR and the SYNTAX (SYNergy between percutaneous coronary intervention with TAXus and cardiac surgery) score in patients with stable CAD (SCAD). A total of 406 patients with an abnormal treadmill exercise test and ≥50% coronary stenosis on coronary angiography were included. The HRR was calculated by subtracting the HR in the first minute of the recovery period from the maximum HR during exercise. The SYNTAX score ≥23 was accepted as high. Correlation of HRR with SYNTAX score and independent predictors of high SYNTAX score were determined. A high SYNTAX score was present in 172 (42%) patients. Mean HRR was lower in patients with a high SYNTAX score (9.8 ± 4.5 vs. 21.3 ± 9, p < 0.001). The SYNTAX score was negatively correlated with HRR (r: -0.580, p < 0.001). In multivariate logistic regression analysis, peripheral arterial disease (OR: 13.3; 95% CI: 3.120–34.520; p < 0.001), decreased HRR (OR: 0.780; 95% CI: 0.674–0.902; p = 0.001), peak systolic blood pressure (OR: 1.054; 95% CI: 1.023–1.087; p = 0.001), and peak HR (OR: 0.950; 95% CI: 0.923–0.977; p < 0.001) were found to be independent predictors of a high SYNTAX score. Our results showed that HRR is significantly correlated with the SYNTAX score, and a decreased HRR is an independent predictor of a high SYNTAX score in patients with SCAD
Recognizing Students and Detecting Student Engagement with Real-Time Image Processing
With COVID-19, formal education was interrupted in all countries and the importance of distance learning has increased. It is possible to teach any lesson with various communication tools but it is difficult to know how far this lesson reaches to the students. In this study, it is aimed to monitor the students in a classroom or in front of the computer with a camera in real time, recognizing their faces, their head poses, and scoring their distraction to detect student engagement based on their head poses and Eye Aspect Ratios. Distraction was determined by associating the students’ attention with looking at the teacher or the camera in the right direction. The success of the face recognition and head pose estimation was tested by using the UPNA Head Pose Database and, as a result of the conducted tests, the most successful result in face recognition was obtained with the Local Binary Patterns method with a 98.95% recognition rate. In the classification of student engagement as Engaged and Not Engaged, support vector machine gave results with 72.4% accuracy. The developed system will be used to recognize and monitor students in the classroom or in front of the computer, and to determine the course flow autonomously
Investigations of Hg(II) and Pb(II) tolerance, removal and bioaccumulation and their effects on antioxidant enzymes on thermophilic Exiguobacterium profundum
Hg(II) and Pb(II) tolerance, removal, bioaccumulation and effects on antioxidant enzymes of thermophilic Exiguobacterium profundum were investigated. The results indicated that Hg(II) was more toxic than Pb(II) to E. profundum. E. profundum was also more tolerant in solid medium than in liquid medium for Pb(II) and Hg(II). The bacterial growth was not significantly influenced at 1.0 and 2.5 mg/L Pb(II) and Hg(II) for 24 h. The highest Hg(II) and Pb(II) bioaccumulation amounts were determined as 37.56 and 54.35 mg metal/dried bacteria, respectively. Bioaccumulation capacities of the cell membrane of E. profundum for Hg(II) and Pb(II) were determined. The different concentrations of Pb(II) and Hg(II) enhanced the SOD and CAT enzymes. In addition, variations of the surface macrostructure and the functionality of E. profundum after the interaction with Hg(II) and Pb(II) were investigated by the scanning electron microscope (SEM) and the Fourier transform infrared spectroscopy (FT-IR), respectively. This investigation obviously showed that thermophilic E. profundum can also be applied for removal and recovery of toxic metals from industrial wastewater. Clearly, a further investigation should be utilized by thermophilic microorganisms. According to antioxidant enyzme activities, E. profundum can be also used as a bioindicator for the detection of toxic metal pollution in natural water samples.This academic work was linguistically supported by the Mersin Technology Transfer Office Academic Writing Center of Mersin University
MANİSA BELEDİYESİ EVSEL ATIKSU ARITMA TESİSİ ÇIKIŞ SULARININ, GEDİZ NEHRİNE OLAN ETKİLERİNİN, ANYONİK DETERJAN VE FOSFAT PARAMETRELERİ AÇISINDAN DEĞERLENDİRİLMESİ
Manisa ilinde endüstrinin hızla gelişmesi ve nüfus yoğunluğunun artmasıyla
çeşitli kaynaklardan gelen atıksular Gediz Nehrine ve dolayısıyla Ege Denizine
ulaşmakta, ekolojik dengenin bozulmasına neden olmaktadır. Evsel ve endüstriyel
atıksularla sucul ortama gelen kirleticiler arasında yer alan deterjanlar, sulardaki
biyolojik aktiviteyi ve organizmalara oksijen taşınımını etkilemesi açısından önemlidir.
Bu çalışmada amaç, Manisa Belediyesi Evsel Atıksu Arıtma Tesisinin çıkış suyundaki
anyonik deterjan ve fosfat konsantrasyonlarının Gediz Nehrine olan etkilerinin
belirlenmesidir. Analiz sonuçlarına göre, anyonik deterjan konsantrasyonları 1.85 –
5.592 mg/L arasında, fosfat konsantrasyonları 0.084 – 0.248 mg P/L arasında değişen
değerlerde bulunmuştur. Elde edilen değerler, ülkemiz Çevre Mevzuatı, Su Kirliliği
Kontrolü Yönetmeliğinde belirtilen, yüzeysel sulardaki anyonik yüzey aktif madde ve
toplam fosfor sınır değerleriyle karşılaştırılmış, atıksuyun anyonik deterjan yönünden
IV. sınıf yani çok kirlenmiş su, fosfat yönünden de III. sınıf yani kirlenmiş su sınıfında
olduğu saptanmıştır. Ayrıca elde edilen fosfor değerleri, yüzeysel sulara boşaltılacak
atıksular için deşarj kriterleri ile karşılaştırıldığında fosfor miktarı yüksek bulunmuştur
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