Directional distributed co-ordination function (D-DCF), a modified medium access control protocol of IEEE 802.11, is proposed to support hybrid antennas such as smart adaptive array antennas and normal omni-directional antennas, in one wireless local area network cell. Nodes equipped with smart antennas follow D-DCF and nodes equipped with normal antennas follow DCF. D-DCF based on a hybrid vir...

The aim of this study was to determine the role of small intestinal (SI) cytochrome P450 (P450) enzymes in the metabolic activation of diclofenac (DCF), a widely used nonsteroidal anti-inflammatory drug, and DCF-induced intestinal toxicity. DCF induces intestinal ulcers in humans and mice, but the underlying mechanisms, including the necessity for drug bioactivation in the target tissues and th...

2'-Deoxycoformycin (dCF) as a single agent has been reported to be less effective against myeloid than against lymphoid malignancies in clinical trials. However, previous studies have shown that in the presence of 2'-deoxyadenosine (dAd), human monocytoid leukemia cell lines are much more sensitive to dCF with regard to the inhibition of cell proliferation. Thus, dCF might be useful for treatin...

BACKGROUND This study aimed to evaluate the efficacy of docetaxel plus 5-fluorouracil and cisplatin (DCF) induction chemotherapy for locally advanced borderline-resectable T4 esophageal cancer. PATIENTS AND METHODS We retrospectively analyzed data regarding thirty patients with borderline-resectable T4 tumor who received either DCF or cisplatin plus 5-fluorouracil (FP) as induction chemothera...

This study aims to identify the advantages and disadvantages of several mechanisms for service differentiation in mobile terminals of a wireless LAN to establish a better and more efficient network. According to the analysis of available approaches for the quality of service of the IEEE 802.11 standard, the objective of this paper is to suggest a new method named DF-DCF "Differentiated Frame DC...

While various factors affecting the performance of a typical IEEE 802.11 DCF (“DCF”) medium access control (MAC) protocol, transmission overhead is one of the main causes of DCF MAC inefficiency. This paper provides an analysis of DCF overhead to show that the network throughput degrades significantly due to its high transmission overhead for a singleuser scenario. Simulation modeling is used t...

Abstract Introduction: Gastric cancer is the fourth common cancer and the second leading cause of cancer death worldwide. Due to lack of adequate information on the side effects of chemotherapy regimens in treatment of gastric cancer, this study was aimed to determine the side effects of two common chemotherapy regimens of gastric cancer. Methods: This prospective study was conducte...

A 75-year-old woman taking the nonsteroidal anti-inflammatory drug diclofenac (DCF) presented with acute Coombs-positive hemolytic anemia and subsequently developed renal failure. A drug-dependent antibody specific for red blood cells (RBCs) could not be demonstrated by in vitro testing with DCF. However, her serum was found to contain an IgM antibody that reacted strongly with RBCs in the pres...

2*-Deoxycoformycin (dCF) as a single agent hasbeenreported tobe lesseffectiveagainst myeloid than against lymphoid malignancies in clinical trials. However, previous studies have shown that in the presence of 2*-deoxyadenosine (dAd), human monocytoid leukemia cell lines are much more sensitive to dCF with regard to the inhibition of cell proliferation. Thus, dCF might be useful for treating mon...