true
Navigation Links
true at biology technology
Detect Single Nucleotide Sequence Changes with Mx4000 Molecular Beacon Allelic Discrimination Kits
...in target DNA. It alsodefinitively discriminates a true negative result from a false negative resultdue to PCR failure. Thus, the hairpin-shaped fluorescent probes are particularlyuseful for high-throughput mutation detection and genotyping assays. Acknowledgments The authors thank the following: Cindy ...Map and Link Human Genetic Disorders with SSLP Analysis
...arker, the dominant band is designated the true allele. Because the pattern of stutter bands is usually consistent for each marker, the genotype of each individual is deduced by scoring the dominant bands only. We also used the CastAway system to analyze linkage studies of f...Signal Transduction Reporting Systems Using Cis-Acting Enhancer Elements
...NF- k B, as measured with pNF k B-Luc. As true for all transfection experiments, conditions must be optimized toachieve high activation levels. The variables to consider include the choice ofcell line, transfection method and protocol. In addition, the amounts ofreporter vector and expression vec...Fluorescence-Based Single-Tube Assays to Rapidly Detect Human Gene Mutations
...he same time. It also definitively discriminates a true negativeresult from a false negative result due to PCR failure. Finally, the technologycan be adapted for high-throughput assays. Currently, with the 96-well PCRplate, it takes about 4 hours to completely screen 96 DNA samples; furtherenhancement of ...HSVision Molecular Beacon Detection Module Rapidly Detects Herpes Simplex Virus DNA
...y performance andvalidation are realized. Hence, a true negative result can be discriminated froma false negative result due to PCR failure. In addition, the inclusion of bothhigh- and low-copy number mixed HSV-1/HSV-2 DNA standards permits assaysensitivity to be validated. Using a 96-well format, samples...An Assessment of the Eppendorf twin.tec plate performance in PCR* applications
...e exposed to the set temperature. The same is also true for the denaturation step. We see a very clear pattern in the temperature transfer abilities between the twin.tec plate and the competitor plate. It is obvious that the twin.tec plates attained the desired temperature exactly ...Normalizing cDNA libraries using the EppendorfThermomixer
...ized in the cell can vary greatly. This is true of the number of individual mRNAs both within one cell and between different tissue types. For example, 16% of the total number of mRNAs in chicken liver cells is made up of one single mRNA type (serum albumin). On the other h......ng eliminates centrifugation steps, allowing true walkaway automation and faster sample processing. The sample tracking system (STS) identifies and tracks bar-codelabeled labware for fully traceable results. The BioRobot MDx is supplied with ready-to-run QIAamp protocols for isola...Critical factors for successful microarray and real-time PCR analyses
... Efficient cDNA labeling and cleanup for more true positive spots on microarrays ...rtificial signals, resulting in more true positive spots, even for genes with low expression. ......and thereby minimizes handling time. A true diagnostic walk away system which guarantees integrity of the clinical results (COBAS AMPLICOR). ...The DIG System Nonradioactive and Highly Sensitive Detection of Nucleic Acids
...ot membrane, hybridization,and detection. They are true all-in-one kits that containeverything you need for a successful experiment. The kitsdiffer with respect to the detection method: the StarterKit I contains reagents for color detection (NBT/BCIP),whereas the Starter Kit II contains reagents for chemi...Determining the Signal-to-Noise Ratio and Optimal Photomultiplier gain setting in the GenePix 4000B
... quantitative measure of the ability to resolve true signal from background noise. For fluorescent array imaging, SNR is commonly calculated as: Signal Background Standard Deviation of Background A higher SNR indicates higher signal over background noise; a si...Increase Protein Activity and Yield
... This same translation efficiency also holds true when coexpressing multiple proteins in the same reaction (Figure 2). Cell-free coexpression of two plasmids in the same reaction is useful in interaction studies such as ligand binding experiments, receptor studies, and protei...High Throughput siRNA Electroporation
...urement error, and assay error, as well as true biological variability. Figure 2. Reduction of GAPDH Gene Expression in NHDF-neo Cells. siRNA (1 g) was electroporated into NHDF-neo (normal numan dermal fibroblast cells, an adherent primary cell type) usin......ection for amplification products that contain the true 5'-end of the desired mRNA. The best of th...eeds The 5'-End? An adage that holds true in life as well as in science is that the intrinsic worth of an item is often proportion...... but this approach overlooks the true subject of most siRNA studies--the biological effect caused by a reduction in the target protein. The biological manifestations of knockdown may not correlate directly with measured mRNA levels. M...Selecting siRNA Sequences to Incorporate into the pSilencer Vectors
... and RNA Pol III-expressed siRNAs. This is also true for chemically synthesized siRNAs versus RNA Pol III-expressed siRNAs. Therefore, it is not necessary to re-screen genes for which functional siRNAs have already been identified. Transcribed siRNA ...siRNA Design: It's All in the Algorithm
... silencing efficacy. While it is true that effective siRNAs tend to have G/C contents less than 50%, overall G/C content is not very predictive of siRNA efficacy. Instead, Cenix recognized the strong impact of differential end-stabili...The let-7 microRNA Family Regulates RAS: Implications for Development and Oncogenesis
...let-7 activity may de-repress RAS expression held true (Figures 1CD). RAS protein levels were ~70% higher in cells transfected with the let-7a inhibitor compared to cells transfected with a negative control. Together, these results ...Visualizing siRNA in Mammalian Cells: Fluorescence Analysis of the RNAi Effect
...nsferred to daughter cells. If this is true and siRNA amplification does not occur in mammalian cells, then the duration of the RNAi effect should be directly proportional to the cellular concentration of the siRNA and the number of cellular divisions that o......o-migrate through the acrylamide gel. The same was true for Pseudomonas aeruginosa and Pseudomonas putida PCR products. Separation on the TTGE gel is based on both size of the PCR product and different melting behavior. Since the T m values were different for each t...Real-Time Multiplex PCR from Genomic DNA Using the iCycler iQ Detection System
...genes under optimized conditions. This was true for plasmid or genomic DNA targets. Figure 1 (left-hand panels) shows the results for each of the 4 human genomic DNA targets, α-tubulin, IL-1 β, GAPDH, and factor VIII. Amplification of the gene alone or in multiple...Inoculation of Viral RNA and cDNA to Potato and Tobacco Plants Using the Helios Gene Gun
...ted by particle bombardment when the first true leaf was fully expanded. Potato plants pro...ion . For each tobacco plant, the first full-grown true leaf was inoculated with one bombardment. For the potato clone A6, one or two full-g...... of the assays by evaluating the number of true and false readings (Table 4). Conclusions There was an excellent correlation between the multiplex suspension assay and the ELISA (r 2 = 0.960.99) The CV was lower in the multiplex assay than in the ELIS...Feasibility of Multiplexing Bio-Plex Total Target and Phosphoprotein Assays
...he range from 12 to 0.6 g/ml. The same was true for the phosphoproteins in each of the treated samples. These results emphasize the importance of establishing the dose-response relationship between the concentration of each protein target and the corresponding signal when a...Not All Bits Are Created Equal
...tific data collected with an imaging device can be true or altered. Alteration of imaged data is u...methods are able to compress or spread out true data, but the bottom line is that the true data is not accurately represented after alterati......ion will rise. The opposite should also be true for samples of low conductivity, the limit of detection will likely decrease, thereby enhancing sensitivity. Effects of Salt The fact that the sensitivity of an assay decreases with increasing sample conductivity ma...The Bio-Rad Silver Stain, Rev E
...exes with silver ions. 53 This also appears to be true forCoomassie stains. The incorporation of these amino acidsinto peptide chains, as well as cooperative effects of severalintramolecular functional groups, are probably required forreaction with silver ions. 29 Reduction of ionic to metallic silveris...Optimization of Biolistic Transformation Using the Helium-Driven PDS-1000/He System
...iency should be used. This is particularly true when transient gene assays are performed as preliminary experiments for determining conditions to use in generating stable transformants (see below). The experimental results obtained here indicate that two of the parameters ......NA concentration (pg) and the threshold cycle held true over a range of five orders of magnitude variation in the starting RNA concentration (for all experiments, the correlation coefficients were between 0.980-0.999). RT-PCR products from the serially-diluted standards and samples were analyzed by gel el...Laser Capture Microdissection (LCM) and Expression Profiling of Long-Range Projection Neurons
...tified on the microarrays, and confirmation of the true expression patterns of these genes was shown by in situ hybridization and Taqman quantitative RT-PCR. Herein we demonstrate how the combination of LCM, RNA amplification and gene expression assays helps to define cell types within identified neural c......3 are magnified, making it easier to recognize the true phytanic acid, appearing at the expected retention...o be seen, overlapping the phytanic acid peak. The true pristanic acid (indicated by arrow) appears at very low concentration, as expected in a normal sampl......tware is used for data analysis, the systems offer true onebutton operation from sample loading to data analysis. The instruments also contain several features, such as: Enhanced sizing precision (Figure 2) from a detection cell heater that facilitates better thermal control An automated polymer deliv......mixtures. The challenge lies in how to distinguish true signal from noise present in the analysis. Accuracy of the quantitative results and dynamic range depends on peak detection, data processing, and interpretation strategies. We describe here the software implemented for ICAT reagent analysis u...Identification of Phase I and Phase II Metabolites of Buspirone on the Q TRAP LC/MS/MS System
...ivity Broad linear dynamic range provides true triple quadrupole quantitation performance and enhances identification of ions in complex matrices Information-rich MS/MS and MS3 spectra with important low mass structural ions provide confidence in results Metabolite ID applicatio...SNPs Powerful Tools for Association Studies
...erage LD block size of 25.8 kb. If this size holds true for the rest of genome, and assuming researchers would use two SNPs per LD block in whole genome association studies, just over 200,000 SNPs would be required to cover the entire genome. Although the cost of whole genome association studies is still ...Amplification Efficiency of TaqMan Gene Expression Assays
...ibute to decreased amplification efficiency of the true target. Testing Across a Broad Template Dilution Range Total RNA from Stratagene Universal Human Reference RNA was reverse transcribed using random primers (Applied Biosystems High Capacity cDNA Archive kit) to generate cDNA. For eac...New Tools for Making and Processing Protein Microarrays.
...ns and not genes that are the vast majority of the true drug targets, there has been a fast growing interest in the use of functional protein microarrays, sometimes referred to as protein biochips. Unlike DNA molecules, functional proteins are not as easy to attach to a biochip substrate. Proteins also ex...Screening and classifying hazardous waste samples
...hemicals, especially in field work. The same holds true for other important classes of fluorescing hazardous chemicals, among them organochlorine pesticides, dioxins, and polynuclear aromatic molecules. back to top...UV Absorbance Measurements in SpectraMax Microplate Spectrophotometers MaxLine Application Note #32)
...a limited colorimetric filterbased instrument to a true UVVis spectrophotometer. Despite the huge popularity of microplates, many people experience difficulty when adapting assays to them. One source of confusion is the fact that samples read in a cuvette and in a microplate do not have identical raw abs......ngency parameters that control the balance between true detection and false signal in a predictable manner...the parameters to achieve the best balance between true detection and false detection. The flexibility provided by the tunable parameters made it possible f...New statistical algorithms for Monitoring Gene Expression on GeneChip® Probe Arrays
...enerates signal values that accurately reflect the true concentration. As with Figure 2, no signal value in Figure 4 is ever negative or zero. This allows signal values to be easily transformed to a logarithmic scale. The effects of altering tunable confidence parameters on Present calls wer...XANTHOCHROMIA IN CEREBROSPINAL FLUID
... results in bilirubin formation. Following a true haemorrhage, red blood cells lyse and release oxyhaemoglobin, which is metabolised to bilirubin. The CSF supernatant after centrifugation is visibly pink or pink-orange due to oxyhaemoglobin, yellow due to bilirubin, and an intermediate colour if ...New Insights Into DNA Decontamination
...while the DNA is neither removed nordestroyed. The true determination of the decontamination potentialof a reagent requires PCR analysis in combination with a DNA degradationtest. Also, the standard method of destroying nucleic acids,namely autoclaving, has to be re-evaluated, since the latest datashow th...LC-MALDI and MALDI-MS/MS for the Analysis of Complex Peptide Mixtures
...using a new MALDI-TOF mass spectrometer,capable of true high-energy MS/MS (AXIMA-TOF 2 ), demonstrating the utility of this technique for the analysis ofcomplex protein mixtures. Also presented is data obtained for an iTRAQ labelled protein mixture, including a novelMALDI-MS/MS analysis mode (Low Mass Z......heir own replication. Prokaryotes do not possess a true nucleus or a nuclearmembrane, whereas eukaryotes have a nucleus enclosed within a distinct nuclearmembrane. The non-cellular protists do not undergo self-replication, instead they directtheir reproduction within another cell termed the host. Cy...Glossary for The BioPharm Guide to Fermentation and Cell Culture
... (in vivo). bioavailability Measure of the true rate and the total amount of drug thatreaches the target tissue after administration. biologic A therapeutic agent derived from living things. biopharmaceutical A therapeutic product created through the geneticmanipulation of living t...Fundamentals of Fermentation: Techniques For Benchtop Fermentors
...ng toinsure integrity. The above description holds true for any side harvest ports inuse. Note that this t...headplate is properly secured. (This is also true for the D.O. probe as well.) The D.O. probe must be checked to ensurethat the required amount of ele...Reforming FDA: Focus on safety, let market judge efficacy
...g more drugs to market, we should realize that the true rate-limiting step is more likely to be the innovation gap highlighted in my previous Memorial Day column . While the protracted drug approval process is indeed a problem, there's a plethora of innovative potential therapies being held up at earlier...Technology helps but the best way to reduce Sarbox cost is with people
...elp reach corporate objectives. This is especially true for public companies attempting to maximize cost efficiencies and benefits through their SOX-404 process. By taking a candid look at their people and related risks early in the annual assessment process, companies can be well on their way to a succe...Visions: Matheys says CIO role is good training for executive suite
... officers can. In Mathey's view, that's especially true at Schneider, where the CIO is given a remarkable degree of responsibility and is expected to possess keen business acumen. Case in point: When Schneider needed a CIO to replace Matheys in 2004, the company searched for one with business experience ...Learning from the big boys: With technology, women urged to go gradual
...ed to think outside the box. That was particularly true of their technological capabilities, and their mindset about the possibilities it holds. Marilyn Johnson, vice president of market development for IBM , reminded them that a website confers a certain worldly status. "You're a global business, she n...Bridging the digital divide is the wrong battle cry
...noble in some circles, but it does not capture the true essence of the total importance of having an infra...vide and view our lack of infrastructure providing true broadband connectivity as a Digital Desert that affects every level of the economic strata. As in p...Supreme Court ruling seen as blow to WARF stem cell patents
...know if it's going to work, Frenchick said. That's true in drug discovery and stem cell experiments....Misconceptions dominate the immigration debate
...he U.S. already." As a general matter, this may be true - although the Bureau of Labor Statistics projects an 82 percent increase in computer positions and a 47 percent increase in engineering positions. Where does the U.S. supply come from with only half of the graduate student population coming from t...Abbott vs. Thailand has implications for innovation and access
...ere the Abbott-Thailand controversy could become a true tragedy, not only because it represents an escalating battle in which pharmaceutical innovation and many Thai lives become collateral damage, but also because this conflict represents a lost opportunity at medical diplomacy and a failed chance at imp...Patent licensing: For enforcing companies, the rules have changed
...ed letters and communications. That is no longer true after Sandisk v. ST Microelectronics , where the Federal Circuit recognized that the U.S. Supreme Court had recently rejected its reasonable apprehension test. While the exact contours of the law remain unclear, it would appear that under the ne...CIO Leadership Series: Deb Rislow, Gundersen Lutheran
...e said. That doesn't happen today. If there is not true alignment with [corporate] strategy, it won't happen. Convergence On large IT implementations, Rislow makes use of project- and change-management methodologies, but she also is concerned with IT-business alignment, making sure lines of communicat......e purchases and consulting services, but to gain a true sense of the bottom-line value, those ongoing support costs must be baked into the model. The scale of interest is in the long term, so Cagigal requires technologists to calculate the return on investment value to be delivered and quantify the benefi...... existing developments was highlighted. Building a true Mega-Metro Center along the lake means having a great supporting infrastructure, but I was surprised at some of the feedback. Long-time reader Larry Zielonka, a CPA, commented that the Chicago-Milwaukee connection was going nowhere fast and that Am...Other ContentsphylumphylumphylumphylonphysicalphysicalphysicalphysicalphysicalphysicalphysicalphysicalphysicalphysicalpinealpinealpinealpinnapinnapinocytosispithOther TagsPatternPatternPatternQueenQueenEngineerEngineerEngineerSilverSilverParticleParticleParticleParticleNanotechNanotechNanotechResistanceResistanceResistanceResistanceNerveNerveNerveNerveExtremeExtreme
(Date:10/10/2008)... German . , DNA, the molecule that acts as th...ife, is highly resistant against alteration by ult...r its photostability presents some puzzling proble...ur chemical bases that make up the DNA molecule. R...owing that DNA strands differ in their light sensi...
(Date:10/9/2008)...ventional wisdom, tropical plant and animal specie...y be threatened by global warming, according to an...bert K. Colwell and colleagues in this week,s (Oct...climate has warmed in recent decades, the geograph...lant species in the US and Europe have moved north...
(Date:10/9/2008)...2008 The Indonesian government and World Wildlife...rotect the remaining forests and critical ecosyste...e of the world,s most diverse and endangered for...ever island-wide commitment to protect Sumatra,s s...endorsed by governors of all provinces across Suma...
(Date:10/9/2008)...008 The United States lacks the policies needed to...t cause environmental harm, says a distinguished g...shed in the October 3rd issue of the journal Scie... incentives that will help ensure that future prod... and environmentally. , Because the cellulosic b...
Breaking Biology News(10 mins):Can genetic information be controlled by light? 2Tropical rainforest and mountain species may be threatened by global warming 2Saving Sumatra: Indonesia reaches historic agreement 2Experts agree: to protect the environment, biofuel standards are needed 2IPC The Hospitalist Company Inc Prices Initial Public Offering 10115 1IPC The Hospitalist Company Inc Prices Initial Public Offering 10115 2NuVasive Announces Webcast and Conference Call of Fourth Quarter and Full Year 2007 Results 2740 1NuVasive Announces Webcast and Conference Call of Fourth Quarter and Full Year 2007 Results 2740 2NuVasive Announces Webcast and Conference Call of Fourth Quarter and Full Year 2007 Results 2740 3Oral Contraceptives Cut Ovarian Cancer Risk 10111 1Oral Contraceptives Cut Ovarian Cancer Risk 10111 2Oral Contraceptives Cut Ovarian Cancer Risk 10111 3 And the Grand Prize Goes to Lockport Memorial Hospital Winner of Siemens National Win an MRI Contest 10108 1 And the Grand Prize Goes to Lockport Memorial Hospital Winner of Siemens National Win an MRI Contest 10108 2 And the Grand Prize Goes to Lockport Memorial Hospital Winner of Siemens National Win an MRI Contest 10108 3(Date:10/10/2008)...Michigan received $5 million from the National Ins...esource of high-quality experimental data sets of ...mputer-aided drug design to a new level. , The ...puter programs that can predict the effectiveness ...ciate professor in the U-M College of Pharmacy and...
(Date:10/10/2008)... Johns Hopkins University School,of Medicine is la...ptimizing Adjuvant Breast Cancer Strategies: From ...ent key research data on the latest advances in,br...ents in the treatment of breast cancer have,led to...ons that are,increasingly tailored to the specific...
(Date:10/10/2008)... The Mobile Massage Team, (http://www.mobilemassag...massage,services for corporate wellness programs, ... today that it is expanding its service area throu...lphia metropolitan region., "We are quite excited...ed, massage programs and services throughout both...
(Date:10/10/2008)...nationally recognized faculty will,present the ver...east,cancer in the multimedia course "Optimizing A...to Treatment Selection" during National Breast,Can...icing oncologists and other interested,health care...t care,advances. This accredited course offers con...
Breaking Medicine News(10 mins):Health News:U-M to house leading drug database 2Health News:Latest Research on Breast Cancer Presented in a Virtual E-Conference CME Course 2Health News:Mobile Massage Team Announces Expansion of On-Site Seated Massage Services Throughout Eastern Pennsylvania and the Greater Philadelphia Region 2Health News:Nationally Recognized Faculty Presents Latest Advances in Care of Patients with Breast Cancer 2[0] U-M to house leading drug database[0] Latest Research on Breast Cancer Presented in a Virtual E-Conference CME Course[0] Mobile Massage Team Announces Expansion of On-Site Seated Massage Services Throughout Eastern Pennsylvania and the Greater Philadelphia Region[0] Nationally Recognized Faculty Presents Latest Advances in Care of Patients with Breast Cancer
PatternTulaneMotorolaQueenEngineerSilverParticleSpellingFernsNanotechResistancePressuredNerveExtreme
Other Tagsinstitutional 2assessed 2assessed 3assessed 4vaccination 2vaccination 3vaccination 4| Copyright © 2003-2008 Bio-Medicine. All rights reserved. ABOUT | CONTACT US | DISCLAIMER | PRIVACY POLICY | TERMS AND CONDITIONS |  |