6400 Results for: "Syst\u00E9my+pro+v\u00FDrobu+\u010Dist\u00E9+vody&pageNo=38&view=easy"

Supplier: Bioss

The sense of taste is essential for the survival of organisms. For example, the ability to identify sweet-tasting foods enables animals to seek out food with high nutritive value, whereas the ability to identify bitter substances enables them to avoid the ingestion of potentially harmful substances. A family of integral membrane proteins are involved in taste perception and include T1R, which is involved in sweet taste perception and T2R, which is involved in bitter taste perception. Both types of taste receptors couple to various G proteins to initiate signal transduction cascades. Specifically, T2R38 is expressed in subsets of taste receptor cells of the tongue and exclusively in gustducin-positive cells. Variations in T2R38 are associated with the ability to taste the bitter chemical phenylthiocarbamide (PTC), also called thiourea tasting.

Supplier: LEICA MICROSYSTEMS

The objective lens is a critical part of the microscope optics. The microscope objective is positioned near the sample, specimen, or object being observed. It has a very important role in imaging, as it forms the first magnified image of the sample.

Supplier: CHIRAL TECHNOLOGIES

These columns allow chromatographers to employ essentially any organic solvent as mobile phase to develop methods for the most challenging separations. These columns are available in a variety of particle sizes and offer great speed and column resolving power. Columns packed with 3 µm CSPs offer high speed separations and a reduction in analysis time and cost per sample. Columns, packed with 3 µm particles, may be used in conventional HPLC units without significant loss in performance, even with the smaller column dimensions.

Supplier: GILSON

Designed for performance and comfort, PIPETMAN® L comes in a comprehensive range of models, adapted to your needs in the lab. PIPETMAN L air-displacement pipettes cover a full volume range. Comfortable, precise, accurate, and reliable, use PIPETMAN L pipettes confidently in your applications.

Supplier: Sartorius

Binder free glass microfibre filters are made of 100% borosilicate, are highly pure and extremely white. They are recommended for analytical and gravimetric analyses and also as prefilters. These filters combine fast flow rates with high load capacity and the retention of very fine particles.

Supplier: Avantor Fluid Handling

Optimise sampling processes with the Exact Volume Sampling Systems (EVSS) from OmniTop Sample Tubes®.

Supplier: FRISTADS KANSAS

Sweatshirt made of 80% cotton and 20% polyester, brushed inside.

Supplier: FRISTADS KANSAS

Basic T-shirts made of 100% pre-shrunk, ring spun cotton (Single Jersey). The models in colour grey melange are made of 85% cotton and 15% viscose.

Supplier: HAMILTON BONADUZ

Kel-F® hub (KF) needles can be used with Luer Tip (LT) and PTFE Luer Lock (TLL) syringes and connectors. Custom lengths and point styles are available.

Supplier: LEICA MICROSYSTEMS

Educational stereo microscope for beginners in college and university Leica EZ4.

Supplier: VWR Chemicals

Due to its excellent separation capacity and its high sensitivity gas chromatography is a widely used technique for analytical purposes. In order to get proper identification and quantification results of the analysed compounds, reference standards are needed. These PESTINORM® reference substances can be used for the characterisation of GC column properties. In addition they may also be used for the identification of unknown compounds in a gas chromatogram or as standards in quantitative GC analysis.

Supplier: ROBU GLASFILTER

ROBU® Filter Funnel with VitraPOR® Filter is designed for high-performance filtration. Equipped with a VitraPOR® filter, it offers exceptional chemical resistance and precision, making it ideal for demanding laboratory and industrial filtration processes. The funnel is durable, reusable, and easy to clean.

Supplier: Bioss

The sense of taste is essential for the survival of organisms. For example, the ability to identify sweet-tasting foods enables animals to seek out food with high nutritive value, whereas the ability to identify bitter substances enables them to avoid the ingestion of potentially harmful substances. A family of integral membrane proteins are involved in taste perception and include T1R, which is involved in sweet taste perception and T2R, which is involved in bitter taste perception. Both types of taste receptors couple to various G proteins to initiate signal transduction cascades. Specifically, T2R38 is expressed in subsets of taste receptor cells of the tongue and exclusively in gustducin-positive cells. Variations in T2R38 are associated with the ability to taste the bitter chemical phenylthiocarbamide (PTC), also called thiourea tasting.

Supplier: KEYSTONE CLEANROOM PRODUCTS

Self-sealing Tyvek® 1073B bags are ideal for steam sterilisation of pharmaceutical components such as vial and syringe stoppers and caps as well as heavy equipment parts with sharp edges. No need to use or validate a heat sealing machine.

Supplier: VWR Collection

ND11 crimp neck vials are manufactured from 1st hydrolytic class borosilicate glass with flat bottom. They can be purchased with a variety of aluminium seal styles and septa materials.

Supplier: VWR Chemicals

These ISO 17025 and ISO 17034 certified general purpose viscosity standards provide certified kinematic viscosity, dynamic viscosity and density data across temperature ranges from 20 to 100 °C.

Supplier: Corning

Axygen MaxyClear polypropylene microcentrifuge tubes feature exceptional clarity without compromising on strength.

Supplier: FRISTADS KANSAS

Vest made from 65% polyester and 35% cotton; napped inner.

Supplier: FRISTADS KANSAS

Basic polo shirt made of 65% polyester and 35% cotton. Available in many different colours.

Supplier: Avantor

These syringe filters are specifically designed for chromatography sample preparation applications and optimised to provide the most consistent results with less extractables.

Supplier: Mettler - Toledo

These portable meters provide high quality dissolved oxygen measurements with the simple click of a button. The robust and waterproof design makes the FiveGo instruments the perfect companion to get reliable measurement data even in harsh conditions. Ideal for mobile applications in the laboratory, at-line, or outdoors.

Supplier: Avantor

These Vydac MS columns are a later development from Grace for the reversed phase HPLC separation of biomolecules. A proprietary surface treatment and bonding process give Vydac MS columns unique selectivity. A variety of reversed phases makes this product line suitable for the analysis of small peptides to large intact, undenatured proteins.

Supplier: OHAUS

A range of balances with multiple features, but uncomplicated weighing capabilities, provide the user with rapid, accurate results for routine weighing and measurement activities. Applications include weighing, formulation, dynamic weighing, parts counting, totalisation, density determination, check weighing and percentage weighing. Stabilisation times are typically less than two seconds.

Supplier: VWR Collection

Auto lite is the latest affordable, automated colony counting device. It is available in one configuration and features simple to use software that greatly improves efficiency, reliability and productivity. Auto lite software uses a powerful algorithm for colony counting on pour and spiral plates. A colony separator automatically splits touching colonies to further improve the accuracy of the counting process.

Supplier: Bioss

The Ras-related superfamily of guanine nucleotide binding proteins, which includes the R-Ras, Rap, Ral/Rec and Rho/Rab superfamilies exhibit 30-60% homology with Ras p21. Accumulating data suggests an important role for Rab proteins, either in endocytosis or in biosynthetic protein transport. The transport of newly synthesized proteins from the endoplasmic reticulum to various stacks of the Golgi complex and to secretory vesicles involves at each stage the movement of carrier vesicles, a process that appears to involve Rab protein function. The possiblity that Rab proteins might also direct the exocytosis from secretory vesicles to the plasma membrane is supported by the observation that in yeast, the SEC4 protein, which is 40% homologous to Rab proteins, is associated with secretory vesicles. At least eight members of the Rab family have been identified, each of which is found at a particular stage of a membrane transport pathway.

Supplier: Bioss

Comprising nearly 4% of human DNA, chromosome 13 contains around 114 million base pairs and 400 genes. Key tumor suppressor genes on chromosome 13 include the breast cancer susceptibility gene, BRCA2, and the RB1 (retinoblastoma) gene. RB1 encodes a crucial tumor suppressor protein which, when defective, leads to malignant growth in the retina and has been implicated in a variety of other cancers. The gene SLITRK1, which is associated with Tourette syndrome, is on chromosome 13. As with most chromosomes, polysomy of part or all of chromosome 13 is deleterious to development and decreases the odds of survival. Trisomy 13, also known as Patau syndrome, is quite deadly and the few who survive past one year suffer from permanent neurologic defects, difficulty eating and vulnerability to serious respiratory infections. The LOC728591 gene product has been provisionally designated LOC728591 pending further characterization.

Supplier: SI Analytics

The Titroline® 7800 enhanced the universal features of the TitroLine® 7750 (potentiometric titration and volumetric KF titration), with an additional IDS measurement socket. Hence the TitroLine® 7800 is able to perform potentiometric titrations with analogue or IDS® electrodes as well as volumetric Karl Fischer titrations. The digital (IDS) measurement socket allows the connection of various digital sensors, such as for measuring of conductivity.

Supplier: VWR Collection

SMART5 XE is a new generation of an integrated gel imaging and gel documentation system dedicated for the detection and analysis of DNA and protein.

Supplier: Bioss

Comprising nearly 4% of human DNA, chromosome 13 contains around 114 million base pairs and 400 genes. Key tumor suppressor genes on chromosome 13 include the breast cancer susceptibility gene, BRCA2, and the RB1 (retinoblastoma) gene. RB1 encodes a crucial tumor suppressor protein which, when defective, leads to malignant growth in the retina and has been implicated in a variety of other cancers. The gene SLITRK1, which is associated with Tourette syndrome, is on chromosome 13. As with most chromosomes, polysomy of part or all of chromosome 13 is deleterious to development and decreases the odds of survival. Trisomy 13, also known as Patau syndrome, is quite deadly and the few who survive past one year suffer from permanent neurologic defects, difficulty eating and vulnerability to serious respiratory infections. The LOC728591 gene product has been provisionally designated LOC728591 pending further characterization.

Supplier: Brady

PermaSleeve® PS heat-shrink polyolefin (B-342) wire marking sleeves combine speed, ease of use, and permanence to create long-lasting, high-quality identification.