bias

HIV-1 spread through six transmission lines in the UK

...nce of older strains could also reflect a sampling bias in this study. ...

Small species back-up giant marsupial climate change extinction claim

...s well established. Closer examination revealed a bias in sample collection in favour of larger animals and there had been few attempts to document ecological and sediment data. "Our samples show that species dependent on habitats such as woodlands and vine thickets dominate the lowest section of the tr...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...erceive with limited spectra and sensory modes. We bias research with the unconscious and incorrect assumption that other animals 'see' the world as we do. Every time we discover otherwise, it expands the horizons of scientific knowledge and sends us the humbling and vital message that we are not, after a...

The lopsided brain: Attention bias is shared by humans and birds

...right hemisphere can experience a much more severe bias in their spatial attention--spatial hemineglect--i...ght side of her drawing. The more subtle leftward bias in attention present in healthy humans likely has to do with asymmetries in the wiring of the brain'...

Mother birds increase progesterone to hatch females

...and the mechanism that several bird species use to bias the sex ratios of their offspring toward female. ...hink that birds such as the Seychelles warbler may bias the sex of their offspring when, for example, their territory has plenty of food and the mother bird...

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bias at Biology Products

Standard Protein Kinase Substrate (PKS) Peptide Microarray from LC Sciences

...eed for radioisotope labeling and potential signal bias due to antibody sequence specificity is eliminated. Test sequence signals can be directly compared to phosphopeptide signals (considered to be 100% of phosphorylation reading). LC Sciences LC Sciences is a genomics and proteomics company offering ...

Protein Kinase Substrate (PKS) Peptide Microarray - Comprehensive Service from LC Sciences

...eed for radioisotope labeling and potential signal bias due to antibody sequence specificity is eliminated. Test sequence signals can be directly compared to phosphopeptide signals (considered to be 100% of phosphorylation reading). LC Sciences LC Sciences is a genomics and proteomics company offering ...

Custom Protein Kinase Substrate (PKS) Peptide Microarray from LC Sciences

...eed for radioisotope labeling and potential signal bias due to antibody sequence specificity is eliminated. Test sequence signals can be directly compared to phosphopeptide signals (considered to be 100% of phosphorylation reading). LC Sciences LC Sciences is a genomics and proteomics company offering ...

bias at Biology Technology

High-Level Expression of Peanut Allergens Affected by Rare Codon Usage

...or protein is not typical. Within E. coli, a clear bias exists among the61 amino acid codons found within the population of mRNA molecules, and thelevel of cognate tRNA appears directly proportional to the frequency of codonusage. 1 A subset of codons, namely AGG/AGA, AUA, CUA, CGA, and CCC, are the lea...

Using XL1-Red Mutator Strain to Generate Esterase Variants

...PCR products is critical. In addition, themutation bias must be optimized. We chose to use the mutator strain, EpicurianColi XL1-Red (lacking DNA repair mechanisms), which should result inrandom mutations generated within a clone of interest. 7 To identify the desired variants from the numerous clones p...

Randomize Gene Sequences with New PCR Mutagenesis Kit

...o lower PCR product yields 4 and a strong bias in the types of mutations produced (mutational spe...ns were relatively rare (~1%). Mutational bias is most commonly analyzed by calculating either the ratio of transition (Ts) to tran...

Codon Bias-Adjusted BL21 Derivatives for Protein Expression

...ress in conventional E. colihosts due to the codon bias of the gene of interest. The BL21-CodonPlus-RILstr... codons are shown in bold to help identify a codon bias that may cause problemsfor high-level expression in E. coli. The arginine codons AGG and AGA arereco...

New BL21-CodonPlus Cells Correct Codon Bias in GC-Rich Genomes

...nardel Anna Waesche Ronda Allen Stratagene Codon bias is a significant obstacle for efficient expression...gradation of the mRNA. 4 When theproblem of codon bias causes frameshifts, codon skipping, or misincorporations,it may escape detection. More commonly, man...

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bias at Biology Definition

Sociobiology

...ften likely to subconsciously incorpororate the bias into their interpretation of the results. Therefore, any research which has serious political implications should be met with rigorous criticism, and not least by the researchers themselves. In other words, in order to make good science , it woul...

Nutrition

...section further to remove anti-meat/pro-vegetarian bias and provide a more balanced view. See also For detailed information, see related entries in the following categories: Food: famine Fast food List of diets Slow Food vegan vegetarian Health: auxology ch...

Culture

...ation Cross-cultural communication Cultural bias Cultural diversity Cultural evolution Cultural imperialism Culture jamming Culture theory Culture war Dominator culture European Capital of Culture — city chosen by the European Union for a year at a time to showca...

Bioinformatics

...niques are extremely noise-prone and/or subject to bias in the biological measurement, and a major research area in computational biology involves developing statistical tools to separate signal from noise in high-throughput gene expression (HT) studies. HT studies are often used to determine the gene...

Bioinformatics

...niques are extremely noise-prone and/or subject to bias in the biological measurement, and a major research area in computational biology involves developing statistical tools to separate signal from noise in high-throughput gene expression (HT) studies. HT studies are often used to determine the gene...

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bias at Biology Dictionary

Organ

...ar amino acid . An important detrminant of codon bias is the guanosine- cytosine (GC) content of the genome . Full article >>> Genome : The total DNA contained in each cell of an organ ism. Mammalian genomic DNA (including that of human s) contains 6x109 base pair s of DNA ...

Lysis

...lysis on each. Even after nucleotide sequence bias was discounted, the most parsimonious phylogenies still showed that all bats had a single common ancestor. Full article >>> Enzyme that cata lysis the joining of two DNA fragments with compatible ends . Ligase is required for ...

Codon Bias

...ar amino acid . An important detrminant of codon bias is the guanosine- cytosine (GC) content of the genome . Full article >>> Codon bias : Although several codon s code for a single amino acid , an organ ism may have a preferred c...

Codon

... amino acid . An important detrminant of codon bias is the guanosine- cytosine (GC) content of the ...on for each amino acid . This is called codon bias . Coelacanth ... Full article >>> (See monoclonal antibodies , polyclonal antibodie...

bias at Medicine News

knowledge of proliferative sickle cell retinopathy can help Prevent eye trauma

...e, a high figure that // may reflect ascertainment bias towards detecting patients with symptoms. Prolifer...opathy (PSR) in a patient population free from the bias of symptomatic referral, followed from birth. This work, supported by the Wellcome Trust, London, ...

Milk Thistle Not An Effective Cure For Liver Disease

... them before you have seen valid, trustworthy, low bias clinical trials that these drugs may actually benefit you more than they may harm you," said Dr. Christian Gluud, the lead author of the study from Copenhagen University Hospital. Reports of high heavy metal content in ayurvedic medicines, the asso...

New Study Questions Cannibalism As A Worldwide Selective Force

...trate how SNP ascertainment can introduce a strong bias in population genetics studies and seriously distort the conclusions. Bertranpetit and his colleagues point out that at a time when a flood of ascertained SNP data is being generated, it is essential that SNP ascertainment be taken into consideration...

Are pretty faces associated with positive trait?

...f houses. This proved that beauty is not a general bias but limited to socially important stimuli such as pretty faces. This is because the participants did not respond that well in identifying the good words after viewing the image of a house. ...

Efficacy of Omega 3 Fatty Acids Needs Wider Perspective

...diovascular events. The few studies at low risk of bias were more consistent, but they also showed no effect of omega 3 on total mortality or cardiovascular events. When data on long chain omega 3 fats were analysed separately, total mortality and cardiovascular events were not reduced. No study showed ...

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bias at Medicine Products

300P PacScan

...al maps, measurement review capability, selectable bias and corneal velocity, accuracy better than 5 microns, precision 0.1 microns....

QualCraft™ Thyroid Shield

...Shield. While other shields have a rough, abrasive bias binding edging the neck, these have a softer, smoother turned seam that helps protect your neck from chafing. Velcro-type closure....

bias at Medicine Technology

Myriad Genetics Presents Mathematical Comparison of Disease Modification Trial Designs at Alzheimer's ConferenceCurrent Flurizan Phase 3 Study Design May Demonstrate Disease Modification

...,which are challenged by ethical concerns, dropout bias andcomplications. A disease modifying therapy for...s notsubject to the above-mentioned complications, bias and ethicalchallenges of the previous designs. "We are excited about this persuasive mathematical c...

Newest Adult Stem Therapy Treats Diabetes

...s being crowded out and in some casesignored. This bias is now denying American patients access totherapies that are much more promising. We need to focus on humantreatments for today, not those with false hope for tomorrow." For years, Type I (Juvenile) diabetes has been known to be anautoimmune disor...

bias at Medicine Dictionary

Convulsion

...involuntary movement of the muscle s. selection bias ... Full article >>> If convulsion s begin, medicine will be injected into your veins. You will be watched closely. Restraints may be used to help prevent injuries . Sedating drugs may be given if you have hallucinations and del...