Variations in intracranial vasculature are well known. We report a rare anatomic variation in a patient who underwent cerebral angiography for suspected intracranial aneurysm. Digital subtraction angiography revealed a bihemispheric posterior inferior cerebellar artery (PICA) and an azygous anterior cerebral artery (ACA). There was no evidence of any aneurysm or vascular abnormality. To our kno...

Conventional blind signal separation algorithms do not adopt any asymmetric information of the input sources, thus the convergence point of a single output is always unpredictable. However, in most of the applications, we are usually interested in only one or two of the source signals and prior information is almost always available. In this paper, a principal independent component analysis (PI...

Mục tiêu: Xây dựng quy trình định lượng chấtcần sa tổng hợp 5-FLUORO-MDMB-PICA có trong mẫu ma túy thu thập được bằng phương pháp sắc ký khí ghép đầu dò khối phổ (GC-MS). Đối tượng và pháp: Mẫu cần chứa các dạng cỏ Mỹ vụ án tại Việt Nam từ năm 2018 đến 2020, xử lý dùng làm thử để thẩm GC-MS theo hướng dẫn của ICH. Kết quả: Quy phân tích,định 5-FLUORO-MDMB-PICA, đã xác điều kiện thích pic tách h...

Mourato Nunes I, et al. BMJ Case Rep 2017. doi:10.1136/bcr-2017-221066 Description Pica is an eating disorder typically defined as the persistent ingestion of non-nutritive substances, for at least 1 month, at an age of which this behaviour is inappropriate. It may be benign or may have life-threatening consequences. 2 The clinical presentation is highly variable and is associated with the spec...

The Traverso-Swan theorem says that a reduced ring A is seminormal if and only if the natural homomorphism PicA→ PicA[X] is an isomorphism ([18, 17]). We give here all the details needed to understand the elementary constructive proof for this result given by Thierry Coquand in [2]. This example is typical of a new constructive method. The final proof is simpler than the initial classical one. ...

Define-se pica como a ingestão compulsiva de alimentos não nutritivos, em quantidades relevantes e rotineiramente. Neste artigo pretende-se dar conhecer síndrome as razões que estão por detrás deste distúrbio pouco consenso gera na comunidade científica.

Abstract A total of 50 breeding bird species were recorded in 2017 an urban environment (589 ha) the city Wrocław, SW Poland. This was dominated by green habitats, such as allotment gardens (41.2%), parklnds (13.4%) and forests (2.7%). For 41 species, population densities estimated. high for Phoenicurus phoenicurus (9.2 pairs / 100 ha), Sylvia atricapilla (7.3), Turdus merula (6.6), ochruros (6...