منابع مشابه
evaluation of parenteral opioid analgesics utilization in patients hospitalized in a referral teaching hospital
background: opioid drugs are the most effective drugs for the treatment of moderate to severe pain. rates of opioid use are influenced by a variety of factors. the aim of this study was to determine the pattern of use of parenteral opioid drugs in hospitalized patients in a referral teaching hospital. methods: in a retrospective study, required data were extracted from medical records of adult ...
متن کاملSpanning directed trees with many leaves
The Directed Maximum Leaf Out-Branching problem is to find an out-branching (i.e. a rooted oriented spanning tree) in a given digraph with the maximum number of leaves. In this paper, we obtain two combinatorial results on the number of leaves in out-branchings. We show that – every strongly connected n-vertex digraph D with minimum indegree at least 3 has an out-branching with at least (n/4) −...
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The Rooted Maximum Leaf Outbranching problem consists in finding a spanning directed tree rooted at some prescribed vertex of a digraph with the maximum number of leaves. Its parameterized version asks if there exists such a tree with at least $k$ leaves. We use the notion of $s-t$ numbering to exhibit combinatorial bounds on the existence of spanning directed trees with many leaves. These comb...
متن کاملOn Out-Trees With Many Leaves
The k-LEAF OUT-BRANCHING problem is to find an out-branching, that is a rooted oriented spanning tree, with at least k leaves in a given digraph. The problem has recently received much attention from the viewpoint of parameterized algorithms. Here, we take a kernelization based approach to the k-LEAF-OUTBRANCHING problem. We give the first polynomial kernel for ROOTED k-LEAF-OUT-BRANCHING, a va...
متن کاملDepression: An undertreated disorder?
In 1994, an estimated 6% of Canadians aged 18 and over—1.1 mi l l ion adults—experienced a Major Depressive Episode (MDE). Although depression is amenable to treatment, fewer than half (43%) the people who met the criteria of having experienced an MDE in the past year (approximately 487,000) reported talking to a health professional about their emotional or mental health. Furthermore, only 26% ...
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ژورنال
عنوان ژورنال: Oncology Times
سال: 2019
ISSN: 0276-2234
DOI: 10.1097/01.cot.0000552846.37776.a4