109 research outputs found

    Remarks on logic for process descriptions in ontological reasoning: A Drug Interaction Ontology case study

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    We present some ideas on logical process descriptions, using relations from the DIO (Drug Interaction Ontology) as examples and explaining how these relations can be naturally decomposed in terms of more basic structured logical process descriptions using terms from linear logic. In our view, the process descriptions are able to clarify the usual relational descriptions of DIO. In particular, we discuss the use of logical process descriptions in proving linear logical theorems. Among the types of reasoning supported by DIO one can distinguish both (1) basic reasoning about general structures in reality and (2) the domain-specific reasoning of experts. We here propose a clarification of this important distinction between (realist) reasoning on the basis of an ontology and rule-based inferences on the basis of an expert’s view

    Detecting human heads with their orientations

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    We propose a two-step method for detecting human heads with their orientations. In the first step, the method employs an ellipse as the contour model of human-head appearances to deal with wide variety of appearances. Our method then evaluates the ellipse to detect possible human heads. In the second step, on the other hand, our method focuses on features inside the ellipse, such as eyes, the mouth or cheeks, to model facial components. The method evaluates not only such components themselves but also their geometric configuration to eliminate false positives in the first step and, at the same time, to estimate face orientations. Our intensive experiments show that our method can correctly and stably detect human heads with their orientations

    VALPROIC ACID PROTECTS KIDNEYS FROM CISPLATIN

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    Cisplatin treatment is effective against several types of carcinomas. However, it frequently leads to kidney injury, which warrants effective prevention methods. Sodium valproic acid is a prophylactic drug candidate with a high potential for clinical application against cisplatin-induced kidney injury. Therefore, in this study, we aimed to elucidate the mechanism underlying the prophylactic effect of valproic acid on cisplatin-induced kidney injury in a mouse model and HK2 and PODO cells with cisplatin-induced toxicity. In the mouse model of cisplatin-induced kidney injury, various renal function parameters and tubular damage scores were worsened by cisplatin, but they were significantly improved upon combination with valproic acid. No difference was observed in cisplatin accumulation between the cisplatin-treated and valproic acid-treated groups in whole blood and the kidneys. The mRNA expression levels of proximal tubular damage markers, apoptosis markers, and inflammatory cytokines significantly increased in the cisplatin group 72 h after cisplatin administration but significantly decreased upon combination with valproic acid. In HK2 cells, a human proximal tubular cell line, the cisplatin-induced decrease in cell viability was significantly suppressed by co-treatment with valproic acid. Valproic acid may inhibit cisplatin-induced kidney injury by suppressing apoptosis, inflammatory responses, and glomerular damage throughout the kidneys by suppressing proximal tubular cell damage. However, prospective controlled trials need to evaluate these findings before their practical application

    Оцінка якості надання медичної допомоги хворим стаціонарних відділень Сумської ЦРКЛ на основі цільового соціологічного опитування

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    У загальносвітових тенденціях стосовно покращання якості медичної допомоги превалює залучення механізмів безпосереднього впливу у самому закладі охорони здоров’я через систематичне оцінювання роботи персоналу та вивчення думки пацієнтів. Мета: визначити оцінку задоволеності пацієнтів стаціонарних відділень якістю медичної допомоги на основі цільового соціологічного опитування

    Primed histone demethylation regulates shoot regenerative competency

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    Acquisition of pluripotency by somatic cells is a striking process that enables multicellular organisms to regenerate organs. This process includes silencing of genes to erase original tissue memory and priming of additional cell type specification genes, which are then poised for activation by external signal inputs. Here, through analysis of genome-wide histone modifications and gene expression profiles, we show that a gene priming mechanism involving LYSINE-SPECIFIC DEMETHYLASE 1-LIKE 3 (LDL3) specifically eliminates H3K4me2 during formation of the intermediate pluripotent cell mass known as callus derived from Arabidopsis root cells. While LDL3-mediated H3K4me2 removal does not immediately affect gene expression, it does facilitate the later activation of genes that act to form shoot progenitors when external cues lead to shoot induction. These results give insights into the role of H3K4 methylation in plants, and into the primed state that provides plant cells with high regenerative competency

    子宮内膜症性腸閉塞に対する経肛門的イレウスチューブの有用性

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    One of the causative diseases of intestinal obstruction in young women is bowel endometriosis. During the course of ectopic endometriosis, it is estimated that about 10% of patients develop bowel endometriosis. The first step in treatment is drug therapy. In cases of bowel endometriosis of the colon or rectum leading to intestinal obstruction, laparotomy is often required. A 47-year-old woman with a history of endometriosis was undergoing drug therapy. She developed abdominal pain and nausea, and was diagnosed with septic shock and fecal ileus. A transanal drainage tube was inserted for decompression. The patient’s general condition improved, and a laparoscopic low anterior resection was performed on the 23rd day. The patient was discharged on the 10th postoperative day without any postoperative problems. This case suggests that even in the case of septic shock caused by rectal stricture due to intestinal endometriosis, initial treatment with transanal decompression may stabilize the general condition, and may be superior in cosmetic change
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