What is Syndecan-1

The protein encoded by this gene is a transmembrane (type I), heparan sulfate proteoglycan and is a member of the family of proteoglycans syndecan. The organization of syndecan mediate cell binding, cell signaling and cytoskeletal and syndecan receptors are required for the internalization of the HIV-1 tat protein. Syndecan-1 protein acts as an integral membrane protein and is involved in cell proliferation, cell migration and cell-matrix interactions through its receiver to the proteins of the extracellular matrix. Altered expression of syndecan-1 was detected in several tumor types. Although several transcription variants may exist for this gene, the full length of only two types have so far been described. These two variants are the most important of this gene and the same encoding the protein

1,3-Cyclohexanediol

The use of iodine as catalyst and either acetic acid or trifluoroacetic acid studied as derivatization reagent for the determination of the enantiomeric composition of aliphatic alcohols acyclic and cyclic chiral. Optimal conditions were selected on the molar ratio of acid to alcohol, the reaction time and the reaction temperature. Thereafter, the chiral stability was examined by chiral carbons. Although no isomerization was observed when the acetic acid was used, partially isomerization was detected with trifluoroacetic acid. A number of chiral alcohols with a type of widely varying structure were then derivatized with acetic acid using the optimum conditions. The resolution of the enantiomers and esters of the free chiral alcohols mounted measured using a capillary gas chromatograph phase with a Chirasil DEX CP-CB column. The best decisions are obtained with the acetate of 2-pentyl (α = 3.00) and acetate of 2-hexyl (α = 1.95). This method is used to analyze experimental work process very simple and effective for the preparation of chiral alcohols by phase chiral GC.

Promethium-147 for sale

Product name:Promethium-147

CAS:7440-12-2

Molecular Formula:Pm

Description:Promethium-147 is one of promethium isotopes with a half-life of 2.62 years and is a nuclear reactor cleavage product by beta decay neodymium 147th isotopes 142Nd neodymium, 143Nd, 144Nd, 145Nd, 146Nd, 148Nd and 150Nd are stable, so that the isotope of promethium with these masses are not produced by beta decay, and therefore are not fission products in substantial quantities.It is used as a source for radiation beta and may also radionuclide to the battery (RTG) (energy density of about 2 watts per gram) can be used.

Nutrient Agar plate for sale

growth surfaces of cells of Escherichia coli on a membrane filter placed on a nutrient agar plate under various conditions was analyzed using a mathematical model. The growth of the bacterial surface cells showed a S-shaped curve with time on a semi-logarithmic plot. To describe it is a new model of logistics that we previously (H. Fujikawa et al, Food Microbiol 21: 501-509 .. 2004) was amended. The growth curves at different constant temperatures (10-34 degrees C) were successfully described by the modified model (model III). Model III gave better rate constant predictions of growth and the lag phase, as a modified Gompertz model and Baranyi model. With the help of the values ​​of model parameters III at constant temperatures, the growth of the surface at different temperatures was predicted successfully. The surface growth curves at different numbers of initial cells were also sigmoid and converges the same maximum number of cells in stationary phase. Surface growth curves at different levels of nutrients are also sigmoid. reduces the maximum number of cells and the rate below the nutritional value growth. The surface growth curve was the same as in a liquid, with the exception of the greater curvature of the delay period. These curves were also well described by the model III. The diagram of the increased growth of ATP content on a cell surface was sigmoid like. For cell growth We discovered several properties of the growth of the bacterial cell surface under different growth conditions and examines the applicability of our model to describe the growth curves.

Copper Mould Tube

lotus-type porous-metal with long cylindrical pores aligned by unidirectional solidification from the melt with a dissolved gas such as hydrogen, nitrogen or oxygen product. gas atoms can be solved by using an atmosphere of pressurized gas or thermal decomposition of gaseous compounds present in the melt. Three types of solidification techniques have been developed: the casting of the mold, the continuous zone melting and continuous casting techniques. The last method is superior in terms of mass production of Lotus metals. The anisotropic behavior of the observed mechanical properties, sound absorption and thermal conductivity of the inherent anisotropic porous structure. In particular, remarkable anisotropy in mechanical strength is due to the stress concentration around the pores aligned perpendicular to the load direction. Sinks are a promising application of Lotus metals due to the high capacity cooling with a large heat transfer.

Olivine Sand abstraction

Mineral carbonation of silicate mineral regulated atmospheric CO2 on geological time scales of carbon hang. Mines and spread on the surface of the rapid deterioration silicates such as olivine, was proposed to accelerate this natural CO2 sequestration (improved weatherability). While agriculture can provide an existing infrastructure, the rate and effects on soil weathering and plants are largely unknown. Our goals were in the ground and assess their effects on plant growth and nutrient absorption weathering of olivine. in pot experiment with ryegrass (Lolium perenne L.), for 32 weeks of alteration was the bioavailability of magnesium (Mg) in soil and plants refer to. olivine doses corresponded in 1630 (olive) 8150, 40700 and 204000 (OLIV4) kg ha-1. alternatively, the kieserite soluble Mg salt was used as growth reference plants. Olivine increased (15.6%) and investment K concentration ( + 16.5%) in OLIV4. all increased doses olivine bioavailability of Mg and Ni in the soil, as well as the absorption of Mg, Si and Ni in plants. Olivine Ca absorption deleted. estimated alteration of a Mg balance corresponded to 240 kg ha-1 (14.8% of the dose, OLIV1) 2240 kg ha-1 (1.1% OLIV4). This corresponds to CO2 sequestration gross of 290-2690 kg ha-1 (29,103 to 269,103 kg km-2.) Otherwise, similarity estimated weatherproof with Kieserit treatment from 13% to 58% for OLIV1 hands. Olsen model for olivine carbonation predicted 4.0% to 9.0% in our case alteration, whatever the dose of olivine. Our% values ​​were observed at high doses, were smaller than that. For negative comments in the ground Nevertheless weather seems fast enough to support the concept of "aging improved." In agriculture, the olivine doses must remain within the limits of imbalances in plant nutrition to avoid, especially in the low availability Ca; and prevent accumulation of Ni in soil and crops.

Zinc ingot for sale

Product Name:Zinc ingot
Character:Silver grey, rectangular strip, The net weight of each spindle is 25-22kg.

Package:Steel strapping, each bundle is 50 ingots, about 1000 kilograms.

Application:Widely used in hot dip、galvanizing battery、lloy、chemical、electronic industries,etc.

Product category:Leading product
From:http://www.metal-dust.com/products/Zinc-ingot/