Mục đích: Mô tả và so sánh giá trị của kháng nguyên đặc hiệu tuyến tiền liệt toàn phần (PSAt) với tỷ trọng (PSAd) trong chẩn đoán ung thư vùng chuyển tiếp (UTCTTTL). Đối tượng phương pháp nghiên cứu: Nghiên cứu mô trên 67 bệnh nhân nghi ngờ UTTTL (bằng lâm sàng hoặc xét nghiệm PSA, có cộng hưởng từ (CHT) TTL, được sinh thiết TTL dưới hướng dẫn siêu âm qua trực tràng tại Bệnh viện Đại Học Y Hà n...

Abstract. The tropical tropopause layer (TTL) is the transition between troposphere and stratosphere. Tropical cyclones may impact TTL by perturbing vertical distributions of cloud, temperature, water vapor. This study combines several A-Train instruments, including radar from CloudSat, lidar Cloud-Aerosol Lidar Infrared Pathfinder Satellite Observation (CALIPSO) satellite, Atmospheric Sounder ...

hTTLL12 is a member of the tubulin tyrosine ligase (TTL) family that is highly conserved in phylogeny. It has both SET-like and TTL-like domains, suggesting that it could have histone methylation and tubulin tyrosine ligase activities. Altered expression of hTTLL12 in human cells leads to specific changes in H4K20 trimethylation, and tubulin detyrosination, hTTLL12 does not catalyse histone met...

Web caches have several advantages for reducing the server load, minimizing the network traffic and lowering user latency. However, maintaining consistency among objects is one of the primary concerns when using web caches. To this purpose, some strategies have been adopted. One of them is using the TTL (time-to-live) of the object, which is a lapse of time during which a copy of the object cou...

Content-Centric Networking (CCN) is a novel networking paradigm making named data the first class entity rather than IP address. That is, it cares about which data to fetch rather than which host to reach. One key feature of CCN is the content caching that CCN routers are caching named contents instead of IP addresses, which makes the effect of Denial-of-Service (DoS) attack different from in T...

Packets trapped in a forwarding loop can rapidly saturate network links and disrupt communications until they are removed by the IP Time-To-Live (TTL) mechanism. This does not pose a significant problem when loops are rare, as is the case with mature routing protocols such as OSPF and BGP. However, in newer and more experimental settings, such as peer-to-peer overlays, active networks and multi...

Caching is an important means to scale up the growth of the Internet. Weak consistency is a major approach used in Web caching and has been deployed in various forms. This paper investigates some properties and performance issues of an expiration-based caching system. We focus on a hierarchical caching system based on the Time-To-Live (TTL) expiration mechanism and present a basic model for suc...

Within Criminology, the analysis of the emergence of criminal behaviour is one of the main challenges [4]. An important mechanism behind this emergence is social learning [3]. To analyse this mechanism, this paper presents an agent-based approach to simulate social learning, which specifically addresses the mutual influence of peers, parents and school, with respect to delinquent behaviour. To ...

We have developed a new wave scheme particularly aiming to provide better temperature fields with realistic variability for trajectory modeling of dehydration processes in the tropical tropopause layer (TTL). The new scheme includes amplitude-phase interpolation and amplification of waves in reanalysis data. Amplification factors are based on statistical variability differences between reanalys...

Composition of the TTL over Darwin: local mixing or long-range transport? W. J. Heyes, G. Vaughan, G. Allen, A. Volz-Thomas, H.-W. Pätz, and R. Busen SEAES, University of Manchester, UK ICG-2, Forschungszentrum Jülich, Germany Institute of Atmospheric Physics, DLR Oberpfaffenhofen, Germany Received: 26 February 2009 – Accepted: 9 March 2009 – Published: 20 March 2009 Correspondence to: W. J. He...