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A complete online Product Catalog of chemicals, supplies, accessories, and equipment for Electron and Light Microscopy, Histology, Cell Biology, Neuroscience, and all biological related research fields. At the site, you can find technical tips and recommended articles of interest, technical and product data sheets, Material Safety Data Sheets, and many revolutionary new products and exclusive items. A complete product catalog of the entire Diatome collection of Diamond knives, tools, and accessories for Electron and Light microscopy for Biological and Materials Science at room and cryo temperatures. Available on-line as well is information on our services, programs, specials, and policies. The complete handling and use technical manual as well as troubleshooting can also be found at our site. The Summers Optical on-line catalog including a complete line of optical cements and adhesives, decementing agents, hardness testers, ultrasonic baths and UV lights as well as technical and transmission data and problem solving can be found at this site. As well as, our unique bonding manual including troubleshooting and charts for how to choose a cement for specific applications and a complete set of MSDS on all of our products can be seen here. EMS Contract Packaging is a total service contract manufacturer, packager, and formulator with over 40 years experience in drug and cosmetic formulating and packaging. Negafile furniture quality wood filing systems and storage cases for grids, negatives, film and microscope glass slides. And a full line of shipping and packaging solutions for all your traditional or digital media.

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• SciCrunch
• 17 years ago - by Anonymous

Specific short oligonucleotide sequences that enhance pre-mRNA splicing when present in exons, termed exonic splicing enhancers (ESEs), play important roles in constitutive and alternative splicing (ESE References). A hybrid computational/experimental method, RESCUE-ESE, was recently developed for identifying sequences with ESE activity. In this approach, specific hexanucleotide sequences are identified as candidate ESEs on the basis that they have both significantly higher frequency of occurrence in exons than in introns and also significantly higher frequency in exons with weak (non-consensus) splice sites than in exons with strong (consensus) splice sites. Representative hexamers from ten different classes of candidate ESEs, together with 6 or 7 bases of flanking sequence context on each side, were introduced into a weak (poorly spliced) exon in a splicing reporter construct. These reporter minigenes were then transfected into cultured cells, where they are transcribed and spliced, and the relative level of inclusion of the test exon was assayed by quantitative (radio-labeled) RT-PCR. Point mutants of these sequences were also analyzed to confirm the precise motifs responsible for ESE activity. The RESCUE-ESE approach identified 238 hexamers as candidate ESEs using a large database of human genes of known exon-intron structure containing over 30,000 nonredudant exons. In more recent analyses by Yeo et al., the RESCUE-ESE approach was utilized to predict hexamers as candidate ESEs in other vertebrate genes, namely, Fugu rubipes, Zebrafish and Mouse. This allows the identification of motifs that are conserved in vertebrates. This web server allows a sequence to be checked for presence of these candidate ESE hexamers.

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• SciCrunch
• 17 years ago - by Anonymous

It ranks amino acid residues in a protein sequence by their relative evolutionary importance, and when a structure is available for that protein, it also can display a structural map of where top-ranked residues fall. This can be useful for rational function re-design and protein engineering because biologist can then efficiently target mutations to the most relevant parts of a protein. For example, one may selectively block, separate, rewire, or mimic functions. ET-based functional annotations may also be useful to suggest protein function (see the ET Annotation Server). ET rank essentially captures the extent of evolutionary pressure at a given sequence position. It is obtained by correlating the sequence variations in an alignment of a protein family with its evolutionary divergences. Top-ranked residues are associated with variations that correlate with large divergences near the root of the evolutionary tree, and presumably linked to significant functional changes. Poorly-ranked residues in contrast are associated with variations near the leaves of the tree, presumably linked to modest functional differences, if any at all. We provide two means of generating and visualizing the ET ranks of importance: the ET Viewer and the ET report_maker. 0. The ET Viewer runs real-value ET or integer ET and displays results. Its ET Wizard takes a PDB identifier, or file, for input, and it outputs ranks of evolutionary importance for every sequence position in the protein. All trace parameters may be adjusted; custom alignments and phylogenetic trees may be used. The ET Viewer then displays a color map of the structure showing which residues are ranked among the top nth percentile, where n is adjustable, and whether they cluster (a z-score indicates whether these top-ranked residues cluster in a statistically significant manner). A multiple sequence alignment viewer and phylogenetic tree viewer display the underlying data. 0. (06/19/2009)A special note for Mac users: 0. The latest Java update for Mac, Java for Mac OS X 10.5 Update 4, moves the Java Web Start application to a new location, causing problems launching ET viewer and other Java Web Start programs. In order to fix this, you need to show your computer where the new location is for Java Web Start. In Finder, select the ET_Viewer_2_pub.jnlp file (which is probably in your downloads folder). Under the File menu, select Get Info. In the resulting window, there''s a section called Open With: Click the drop-down menu and select Other.... A new window will open. Navigate to your hard drive, select System, then Library, then CoreServices, and then select Java Web Start.app. Then click the Change All... button in the Open With: section to make this change permanent. Sponsor. A.D.W., S.E. and R.M.W. were also supported by train- ing fellowships from the National Library of Medicine to the Keck Center for Interdisciplinary Bioscience Training of the Gulf Coast Consortia.

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• SciCrunch
• 14 years ago - by Anonymous

Welcome to the EMQN website. EMQN is a not-for-profit organisation promoting quality in molecular genetic testing through the provision of external quality assessment (proficiency testing schemes) and the organisation of best practice meetings and publication of guidelines. The European Molecular Genetics Quality Network (EMQN) started in October 1998 after a successful pilot trial. From January 1999 to March 2002, the network was supported by a grant from the European Commission under the Standards Measurement and Testing Programme (contract number SMT4-CT98-7515). From April 2002, the network is supported by subscriptions from it users. External Quality Assessment (EQA): There are 26 EQA schemes being offered in 2010. To participate you must be a registered member of the network. For more information on EQA schemes, click the link here. Best Practice: EMQN is actively promoting ''best practice'' meetings on individual diseases. To assist in this process, EMQN will be organising best practice meetings. To participate you must be a registered member of the network. Following the meeting, draft best practice guidelines are produced and publised on this and other related websites, for example, the web site of the UK Clinical Molecular Genetics Society (CMGS). To find out more about best practice click here. Administration: The EMQN is based at the National Genetics Reference Laboratory (Manchester), St Mary''s Hospital, Manchester, The United Kingdom. The Network is co-ordinated and administered by Dr''s Rob Elles and Simon Patton. A management group is responsible for the activities and direction of the network. National partners in different countries help to disseminate information about the network. Quality Policy The EMQN provides a comprehensive range of quality assurance programs for molecular genetics to laboratories and industry worldwide. The European Molecular Genetics Quality Network (EMQN) is committed to helping ensure diagnostic molecular genetic laboratory test results are accurate, reliable and comparable wherever they are produced. The EMQN will provide a high quality and timely service which takes into account the needs and requirements of its users. Objectives To help to raise and maintain the standards of diagnostic clinical molecular genetic testing. To undertake and promote educational activities. To be a leading authority in quality assurance . To design and provide the best possible materials and data management. To design and provide quality reports that are timely and valid. To provide professional support and consultation. To develop new programs as required. To participate in peer review. To strive for continual improvement of the quality system. Sponsor. the network was supported by a grant from the European Commission under the Standards Measurement and Testing Programme (contract number SMT4-CT98-7515

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• SciCrunch
• 17 years ago - by Anonymous

Software analysis package for molecular biology community. Automatically copes with data in variety of formats and allows transparent retrieval of sequence data from web. Libraries are provided with package. Provides toolkit for creating bioinformatics applications or workflows. Provides set of sequence analysis programs. Provided programs cover areas such as sequence alignment, rapid database searching with sequence patterns, protein motif identification, nucleotide sequence pattern analysis, codon usage analysis for small genomes, rapid identification of sequence patterns in large scale sequence sets, and presentation tools for publication.

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• SciCrunch
• 14 years ago - by Anonymous

Latest publications: ELDERMET research has recently been published in the Proceedings of the National Academy of Sciences (USA). This work focuses on the composition and stability of the intestinal bacteria in older Irish adults. Read the paper here. Would you like to be part of ELDERMET? We are currently looking for people, aged 65 years or older, living in the community. All we ask is that you live in the Cork area, or are willing to travel to Cork, and have recently (within the last two/three weeks) taken any kind of antibiotic. It doesnt matter if you are still taking the antibiotic, as long as the finishing date isnt more than four weeks before your first visit to ELDERMET. ELDERMET Objectives To assess the composition of the faecal microbiota of elderly volunteers in the Irish population, using state-of-the-art molecular techniques. To correlate diversity, composition, and metabolic potential of the faecal microbial metagenome with health, diet and lifestyle indices that are a) likely to be influenced by the microbiota or b) to influence the microbiota. To develop recommendations for specific dietary ingredients, foodstuffs, functional foods and/or dietary supplements, that will improve the health of elderly consumers. To provide evidence-based recommendations for prospective studies to determine the molecular mechanisms for health improvements promoted by specific food ingredients that modulate components of the microbiota. ELDERMET Rationale The human intestinal microbiota is made up of approximately 1000 genetically unique organisms (phylotypes ) [1]. The bacteria present in the intestine make an important contribution to: metabolism executed in the gut [2] health, in diverse activites from pain perception [3] to cognitive function [4]. There is an increasing body of evidence linking alterations in the human gut microbiota with Inflammatory Bowel Disease [5, 6] and Irritable Bowel Syndrome [7]. The changing pattern of the gut microbiota in elderly subjects [8, 9] may be linked to host changes such as immunosenescence, increased susceptibility to disease and potentially systemic effects. The composition of the intestinal microbiota may be modulated by dietary components including prebiotics [10]. ELDERMET will determine the baseline composition of the gut microbiota of several hundred elderly Irish subjects using a combination of traditional culutre and molecular (culture-independent) methodologies. ELDERMET will explore potential correlations between microbiota composition and a range of health indices; cross-referencing data to dietary intake. Data will be analyzed in the context of the related FHRI projects in Nutrigenomics, Food Consumption, Food Safety, and Diet-Health. ELDERMET will provide recommendations to all stakeholders (including health practitioners and the health service, the food industry and the general public) on how to improve health based on defined modifications to dietary intake. Sponsor. This work is supported by the Goverment of Ireland Department of Agriculture Fisheries and Food/Health Research Board Food for Health Research Initiative award to the ELDERMET project as well as by a Science Foundation Ireland award to the Alimentary Pharmabiotic Centre. M.J.C. is now funded by a fellowship from the Health Research Board of Ireland.

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• SciCrunch
• 17 years ago - by Anonymous

THIS RESOURCE IS NO LONGER IN SERVICE, documented on March 11, 2013. Web-based tool to explore the relationship between population frequency and extended linkage disequilibrium measured as haplotype homozygosity of observed haplotypes within a specified candidate region. Haplotype homozygosity (HH) is an effective measure of linkage disequilibrium (LD) for more than 2 markers. If we want to see, how LD breaks down with increasing distance to a specified core region, we can calculate HH in a stepwise manner as extended HH (EHH, Sabeti et al. 2002). EHH is calculated between a distance x and the specified core region for a chromosome population carrying a single core haplotype. Distance x increases stepwise to the most outlying marker. The procedure is repeated for each core haplotype. HH is evaluated as HH = sum(pi2) - 1/n / 1 - 1/n with pi being the relative haplotype frequency and n the sample size. It corrects for sampling effects (Sabatti & Risch 2002). The variance of HH is estimated according to Nei (1975). EHH estimates the level of haplotype splitting due to recombination and mutation at extended regions on both sides of a specified core region. It may be used to explore haplotype-specific LD patterns, e.g. for disease associated haplotypes. In combination with the core haplotype frequency it may also serve as an indicator of recent positive selection. Frequent core haplotypes with an unusually high long-range LD are supposed to be positively selected. The various core haplotypes can serve as internal controls. Input file: A text file consisting of a haplotype (chromosome) population

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• SciCrunch
• 17 years ago - by Anonymous

A software tool, text mining based, for annotating text with gene ontology terms. The tool combines knowledge-driven methods on top of a standard vector- space retrieval approach to identify pointers to ontology terms. Passage selection methods were tested based on vocabulary density estimation using several terminologies of the domain. The tool improves on standard retrieval approaches based on vector-space similarities by using a Boolean completion principle.

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• SciCrunch
• 17 years ago - by Anonymous

Drew Scientific manufactures and sells Analytical Instruments and Reagents world-wide : Cell Counters for Clinical Hematology Cell Counters for Veterinary Hematology and Research Hemoglobin Analyzers for Diabetes (HbA1c) Reagents and Controls You can place an order on us in a variety of ways : by post, by fax, or by email. See the Contact Us page for addresses and telephone numbers. This section is to enable you to send an order by email. We need the following information : Your Order Number Your Company or Organisation Your contact name (and phone number if we don''t already know it). Your full email address. This is essential so that we can reply to you. The Delivery details (As Normal is acceptable if you are a frequent customer.) Your requested delivery date. A list of the items you require, with Part Number and Quantity. We will acknowledge your order by email, confirming the availability of the items, the delivery date, the price and the delivery details. In many parts of the world our customers are supported by our local distributors. If appropriate, we will pass your order to the relevant distributor and put them in touch with you. You can fill in the email order form directly with the above information, or you may use the Frequent Items tab to add those items that are most frequently ordered. Please use the Spares or Consumables lists to find the Part Numbers of any other items you require. But please do this before you start to fill in the Order Form, because if you leave this Ordering section before submitting your order, you will lose any data you have entered, and will have to enter it again.

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• SciCrunch
• 17 years ago - by Anonymous

The ImageJ installations below correspond to the WCIF ImageJ manual. The manual is written for this particular installation of ImageJ. This ImageJ installation has, among other plugins, one that links to an online version of the manual. The online manual is more up-to-date than the PDF version. Windows users Download WCIF ImageJ bundle (~23Mb) v1.34i, 3rd March 2005 with J2SE 5.0 (formerly J2SE 1.5). For Windows: download and run program. Mac and Linux users Download your OS specific version of ImageJ from the ImageJ website then extract the following file to the plugins folder. Download WCIF ImageJ bundle plugins only (~2Mb) This contains only the plugins, IJ preferences, LUTs and plugin source code. Image Processing and Analysis Software ImageJ LSM Browser (*.lsm) Axiovision viewer (*.zvi) Manufacturers of our microscopes and related equipment Zeiss - Microscopes and imaging systems. P.A.L.M. Microlaser Technologies - Manufacturer of our laser capture system. Sutter Instruments - Micromanipulators. Uniblitz - Shutters. Ludl - Manufacturers of our motorised x-, y-stage Hamamatsu - Digital cameras. Molecular Probes - Dyes and reagents. Scanalytics - Image acquisition and processing software. MicroBrightField - Developers of the Neurolucida and Stereo Investigator software. DVC - Digital cameras. Bitplane - Developers of the Imaris suite of software. AutoQuant - Developers of the AutoDeblur deconvolution software

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• SciCrunch
• 17 years ago - by Anonymous

This is the website of the Structural Brain Mapping Group at the Department of Psychiatry, University of Jena. Our principal research focuses on the development of methods for structural brain imaging and their application. Specific areas of interest include the investigation of structural brain plasticity and schizophrenia research. Regional structural brain changes are among the most robust biological findings in schizophrenia, yet the underlying pathophysiological changes remain poorly understood. Recent evidence suggests that abnormal neuronal/dendritic plasticity is related to alterations in membrane lipids. We examined whether serum activity of membrane lipid remodeling/repairing cytosolic phospholipase A2 (PLA2) were related to regional brain structure in magnetic resonance images (MRI). The study involved 24 schizophrenia patients, who were either drug-nave or off antipsychotic medication, and 25 healthy controls. Using voxel-based morphometry (VBM) analysis of T1-high-resolution MRI-images, we correlated both gray matter and white matter changes with serum PLA2-activity. PLA2 activity was increased in patients, consistent with previous findings. VBM group comparison of patients vs. controls showed abnormalities of frontal and medial temporal cortices/hippocampus, and left middle/superior temporal gyrus in first-episode patients. Group comparison of VBM/ PLA2-correlations revealed a distinct pattern of disease-related interactions between gray/white matter changes in patients and PLA2-activity: in first-episode patients (n = 13), PLA2-activity was associated with structural alterations in the left prefrontal cortex and the bilateral thalamus. Recurrent-episode patients (n = 11) showed a wide-spread pattern of associations between PLA2-activity and structural changes in the left (less right) prefrontal and inferior parietal cortex, the left (less right) thalamus and caudate nucleus, the left medial temporal and orbitofrontal cortex and anterior cingulum, and the cerebellum. Our findings demonstrate a potential association between membrane lipid biochemistry and focal brain structural abnormalities in schizophrenia. Differential patterns in first-episode vs. chronic patients might be related to PLA2-increase at disease-onset reflecting localized regenerative activity, whereas correlations in recurrent- episode patients might point to less specific neurodegenerative aspects of disease progression.

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• SciCrunch
• 17 years ago - by Anonymous

The genome of the domesticated dog, a close evolutionary relation to human, is a powerful new tool for understanding the human genome. Comparison of the dog with human and other mammals reveals key information about the structure and evolution of genes and genomes. The unique breeding history of dogs, with their extraordinary behavioral and physical diversity, offers the opportunity to find important genes underlying diseases shared between dogs and humans, such as cancer, diabetes, and epilepsy. The Canine Genome Sequencing Project produced a high-quality draft sequence of a female boxer named Tasha. By comparing Tasha with many other breeds, the project also compiled a comprehensive set of SNPs (single nucleotide polymorphisms) useful in all dog breeds. These closely spaced genomic landmarks are critical for disease mapping. By comparing the dog, rodent, and human lineages, researchers at the Broad Institute uncovered exciting new information about human genes, their evolution, and the regulatory mechanisms governing their expression. Using SNPs, researchers describe the strikingly different haplotype structure in dog breeds compared with the entire dog population. In addition, they show that by understanding the patterns of variation in dog breeds, scientists can design powerful gene mapping experiments for complex diseases that are difficult to map in human populations. Contribute Although the astounding generosity of Eli and Edythe L. Broad and several other venture philanthropists empowers our scientists to tackle many of the most important problems at the cutting edge of genomic medicine, there are many other critical challenges that they cannot yet pursue because of limited resources. We need additional visionary partners to join the Broads and the Broad Institute in transforming medicine with the power of genomics.

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• SciCrunch
• 17 years ago - by Anonymous

Sustainability plan EpiData Software has since 2000 grown from securing the principles of Epi Info V6 to an independent and documentation based system with several translations and numerous downloads. To secure continued viability organisations and governments work is being done to secure for the future, see also the license principles - the ambition is to convert the programs to open-source within few years. Contributions are used for costs of development after version 1.5 (e.g. refining of programming, enhancing speed, maintenance of website, to pay for absence from paid work to do EpiData or other developmental and promotional efforts for EpiData). About the EpiData Association EpiData Software is from EpiData Entry version 2.0 and above released by the non-profit organisation The EpiData Association Odense, Denmark (In Danish: EpiData foreningen). The association receives NO baseline budget from anyone. The association has no employees Postal adress is: The EpiData Association, att. Jens Lauritsen, Enghavevej 34, DK5230 Odense M, Denmark, Europe The body of users of EpiData form the most important part of the basis of the EpiData Association. Those who choose to register as users will be asked when desicions are to made regarding additions to the program. Needs for documentation etc. Registration is done by adding your e-mail to the Information list. Supporting members or institutions adds to the foundation and development of EpiData by securing funding to pay for the associated costs. List of donors. The board of the association is made up of the core persons developing EpiData, currently Jens M.Lauritsen and Michael Bruus in collaboration with experienced users and the Friends Of EpiData group (FoED), comprising a group of international persons wishing to support the development of EpiData Sponsor. Without support from a number of NGO''s, Universities, Regional Health Authorities and other funding bodies EpiData development would have stopped

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• SciCrunch
• 17 years ago - by Anonymous

This web site is your introduction to the world of Florida Aquaculture. It represents a compilation of information about a division in the Florida Department of Agriculture and Consumer Services-the Division of Aquaculture. The Division plays a key role in the regulation of aquaculture facilities and shellfish processing plants, is responsible for opening/closing of shellfish harvesting waters to protect human health, ensures the continued productivity of oyster reefs through a restoration program and issues leases of submerged state lands for aquaculture. The creation of this division is unprecedented for a state agriculture department. Florida''s Division of Aquaculture is one-of-a-kind and serves a unique industry like no other in the United States. Please browse this site and learn more about Florida Aquaculture. I welcome your comments on the topics contained in this web site.