نتایج جستجو برای: pert and ag
تعداد نتایج: 16834395 فیلتر نتایج به سال:
Shunting scheduling problems at railway depot can be regarded as a sort of resource constrained project scheduling problem (RCPSP). Unlike the normal RCPSPs, however, shunting scheduling problems require that the number of activities which form a project has to be dynamically changed in the problem solving process and some of the activities have to be performed at a prescribed timing, for examp...
The traditional PERT (Program Evaluation and Review Technique) model uses beta distribution as the distribution of activity duration and estimates the mean and the variance of activity duration using “pessimistic”, “most likely” and “optimistic” time estimates proposed by an expert. In the past several authors have modified the original PERT estimators to improve the accuracy. In this paper, on...
Pancreatic exocrine insufficiency (PEI) is highly prevalent in patients with pancreatic cancer, and has substantial implications for quality of life survival. Post resection, PEI associated increased post-operative complications, longer hospital stays higher costs. Treatment enzyme replacement therapy (PERT) improves confers significant survival advantages. Despite this many cancer do not curre...
Pancreatic exocrine insufficiency (PEI) is often observed in patients with pancreatic diseases, including chronic pancreatitis, cystic fibrosis, and tumors, or after surgical resection. PEI often results in malnutrition, weight loss and steatorrhea, which together increase the risk of morbidity and mortality. Therefore, nutritional interventions, such as low-fat diets and pancreatic enzyme repl...
Since 1997, the Critical Chain Project Management (CCPM) method has received considerable attention. Hundreds of successful CCPM cases have achieved highly reliable on-time delivery (OTD) with short project lead-time (PLT) in multi-project environments. However, two obstacles have remained, blocking the implementation of CCPM to project management (PM) society. The first has been addressed by P...
BACKGROUND Effectiveness of medical therapies in chronic pancreatitis has been described in small studies of selected patients. AIM To describe frequency and perceived effectiveness of non-analgesic medical therapies in chronic pancreatitis patients evaluated at US referral centres. METHODS Using data on 516 chronic pancreatitis patients enrolled prospectively in the NAPS2 Study, we evaluat...
Recently developed PCR-based reverse transcriptase (RT) assays are useful in the detection of retroviruses since they are approximately a millionfold more sensitive than conventional RT assays. However, these assays are both labor- and time-intensive. The previously described product-enhanced reverse transcriptase (PERT) assay involves a two-step RT-PCR followed by detection and quantitation of...
The GÉANT2 project established a Performance Enhancement and Response Team (PERT) process [1] in 2004 to assist network users in troubleshooting network performance issues and provide information on how to optimize network performance. This paper presents a summary and conclusions of a PERT case where the aim was to transfer data from an eVLBI radio telescope in Chile to the Netherlands across ...
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