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A linear program (LP for short) is an optimization problem in which the constraints are linear inequalities and equalities, and the objective function is also linear. There are many equivalent standard forms for LPs. We will use the following form for a maximization problem: max cx s.t. Ax ≤ b x ≥ 0 Let us explain the notation a bit. Here A is an m× n matrix (i.e. m constraints and n variables)...
A software engineering standard is an aid for systematic software development and process improvement. Because of the informal representation of software engineering knowledge, the document might be inconsistent, ambiguous, and incomplete. A more formal representation promises to overcome these shortcomings. Software process modeling is a direction within software engineering that aims at provi...
8–2–1 as the third group. The significant difference between the first group and the second group, or the 5–1 topology and the other N–1 topologies, suggests that the grading performance can be significantly reduced when the input dimension is too small. This is because that the important grading criteria is hidden too deeply in the input and is obscured by the other properties [19]. These resu...
As infection and immune reaction are so intricately intertwined, this book is valuable reading to anyone interested in infectious diseases in humans. Maybe in the future prions will have to be included as a new type of infectious agent whose rise we are just now witnessing. (Information on prion pathology is still hotly debated, and data on routes of transmission and immune system reactions are...
Lyme borreliosis, or Lyme disease, is the most commonly reported arthropodborne illness in both the United States and Europe. 1 It was first recognized in the 1970s after epidemiologic investigations of a clustering of cases of oligoarthritis among children in eastern Connecticut established a probable microbial etiology for the disease. 2 In 1981, Burgdorfer isolated a new spirochetal bacteriu...
Entity Behavior
In Time-Space Clustering of Human Brucellosis, California, 1973–1992, by G. Fosgate et al., an error appears in the results section. The corrected sentence appears below and online at http://www.cdc.gov/ncidod/EID/vol8no7/01-0351.htm . The Brucella species was identified in 229 (55%) of the 416 cases analyzed. B abortus was isolated from 39 cases, B. melitensis from 181, and B. suis from 9. We ...
Branched DNA was synthesized from tripropargylated oligonucleotides by the Huisgen-Meldal-Sharpless cycloaddition using "stepwise and double click" chemistry. Dendronized oligonucleotides decorated with 7-tripropargylamine side chains carrying two terminal triple bonds were further functionalized with bis-azides to give derivatives with two terminal azido groups. Then, the branched side chains ...
Farmers are frequently exposed to ultraviolet (UV) radiation which causes various diseases by inducing oxidative stress. This study aimed to assess the effects of sunblock on oxidative stress in the body. Eighty-seven farmers were divided into two groups: those who wore sunblock for five days and those who did not. The total antioxidant capacity (TAC) in urine, which is an antioxidant indicator...
Sulfated tetrafucosides with different sulfation patterns, and a non-sulfated tetrafucoside , were designed and systematically synthesized from the common key intermediate . In addition, their anti-proliferative activities and apoptosis-inducing activities against human breast cancer MCF-7 cells were evaluated. Our results demonstrated that the sulfated tetrafucosides reduced the number of MCF-...
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