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#34525320   2021/09/15 To Up

How to make the use of recycled paperboard fit for food contact? A contribution to the discussion.

Recycled paperboard contains hundreds of non-evaluated or even unidentified substances that could endanger human health if they turn out to be highly toxic. It seems as unrealistic to evaluate each of them as it is to phase out the use of the problematic ones or sort out the papers and boards introducing them into the recyclate. Therefore, measures should be taken that generally reduce migration into food, such as functional barriers or functional sorbents. A general approach is used for the recycling of plastics, particularly poly(ethylene terephthalate), PET: as not every potential contaminant can be regulated, a pragmatic approach is applied, for PET mainly on the required decontamination efficiency. Criteria are required on the required efficacy of the measures to be taken. Recycled paperboard is used for various types of food contact: mostly contact is through the gas phase (evaporation and recondensation), often indirect through other layers (e.g. internal bags or for transport boxes), seldom in wetting contact. Numerous factors have to be considered. For typical folding boxes and at least strongly dominating gas phase contact, it was proposed that no more than 1% of each contaminant in the recycled paperboard should enter the food. The efficiency of the measures required to comply with this criterion depends on the application. The three main measures are reviewed with regard to this criterion: (i) internal bags with an incorporated functional barrier (successfully used for some time), (ii) a barrier layer on the internal wall of the box (for which the design of the closures might be most critical) and (iii) functional sorbents added to the paperboard (for which the sorbent capacity is critical). For transport boxes, commonly of corrugated board (quantitatively the most important use of recycled paperboard in food contact), an adjusted or different criterion is needed.
Koni Grob

2660 related Products with: How to make the use of recycled paperboard fit for food contact? A contribution to the discussion.

0.1 mg1 module 25 G600 Tests / Kit5 mg100 µg1 mg

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#34525217   2021/09/15 To Up

Wall shear stress mapping for human femoral artery based on ultrafast ultrasound vector Doppler estimations.

Wall shear stress (WSS), a type of friction exerted on the artery wall by flowing blood, is considered a crucial factor in atherosclerotic plaque development. Currently, achieving a reliable WSS mapping of an artery noninvasively by using existing imaging modalities is still challenging. In this study, a WSS mapping based on vector Doppler flow velocity estimation was proposed to measure the dynamic WSS on the human femoral artery.
I-Chieh Wang, Hsin Huang, Wei-Ting Chang, Chih-Chung Huang

2006 related Products with: Wall shear stress mapping for human femoral artery based on ultrafast ultrasound vector Doppler estimations.

One 96-Well Microplate Ki1.00 flask1.00 flaskTwo 96-Well Microplate Ki10 μg1.00 flask25 μgOne 96-Well Microplate Ki25 µgOne 96-Well Microplate Ki

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#34525209   2021/09/15 To Up

Mevalonate Kinase Deficiency: A Cause of Severe Very-Early-Onset Inflammatory Bowel Disease.

Mevalonate kinase deficiency should be considered in patients with severe very-early-onset inflammatory bowel disease (IBD), especially in patients with a history of recurrent or chronic fever, peritoneal adhesions, and atypical IBD pathology. Anti-interleukin-1 therapy may be efficacious in these patients with monogenic very-early-onset IBD.
Brigitte Bader-Meunier, Andreia Luís Martins, Fabienne Charbit-Henrion, Ulrich Meinzer, Alexandre Belot, Laurence Cuisset, Albert Faye, Sophie Georgin-Lavialle, Pierre Quartier, Vanessa Remy-Piccolo, Frank Ruemmele, Florence Uettwiller, Jérôme Viala, Nadine Cerf Bensussan, Dominique Berrebi, Isabelle Melki

1608 related Products with: Mevalonate Kinase Deficiency: A Cause of Severe Very-Early-Onset Inflammatory Bowel Disease.

5 mg2 mL100 μg100 100 tests100ug100ug1-99 mg/ml/ea price x 21 mL

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#34524603   2021/09/15 To Up

Genome characterization of fig umbra-like virus.

The complete genome of a new umbra-like virus from edible fig (Ficus carica) was identified by high-throughput sequencing. Based on its similarity to umbra-like virus genome sequences available in GenBank, the proposed name of this new virus is "fig umbra-like virus" (FULV). The genome of full-length FULV-1 consists of 3049 nucleotides organized into three open reading frames (ORFs). Pairwise comparisons showed that the complete nucleotide sequence of the virus had the highest identity (71.3%) to citrus yellow vein-associated virus (CYVaV). In addition, phylogenetic trees based on whole-genome nucleotide sequences and amino acid sequences of the RNA-dependent RNA polymerase showed that FULV forms a monophyletic lineage with CYVaV and other umbra-like viruses. Based on the demarcation criteria of the genus Umbravirus, and lack of two umbravirus ORFs, we propose that FULV is a putative new member of the umbra-like virus clade within the family Tombusviridae.
Xupeng Wang, Alejandro Olmedo-Velarde, Adriana Larrea-Sarmiento, Anne E Simon, Alexandra Kong, Wayne Borth, Jon Y Suzuki, Marisa M Wall, John Hu, Michael Melzer

1686 related Products with: Genome characterization of fig umbra-like virus.

100251000>1 x 10^6 IFUs0.1 mg1 ml100ug1 mL2050 mg10 0.1 mg

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#34524582   2021/09/15 To Up

Use of Medication to Treat Attention-Deficit/Hyperactivity Disorder in Young Children: The Role of Maternal History of Psychotropic Medication Use.

We examine whether, among children diagnosed with ADHD, are those whose mothers have a history of psychotropic medication use more likely to treat their ADHD with medication? Children born in Manitoba, Canada from 2000 to 2010 diagnosed with ADHD between their 4th and 8th birthday. Maternal psychotropic medication use was assessed from one year before the child's birth to the child's fourth birthday. Logistic regression models examine the relationship between maternal history of psychotropic medication use and the use of medication to treat ADHD in children. Among the 2384 children diagnosed with ADHD, the rate of ADHD medication use was higher for those whose mother had a history of psychotropic medication use (76.6%) than for those whose mothers did not (72.5%) (OR 1.24, 95% CI 1.03, 1.49). Children whose mothers have a history of psychotropic medication use are more likely to have their ADHD treated with medication.
Elizabeth Wall-Wieler, James M Bolton, Gilles Detillieux, Leslie L Roos

2802 related Products with: Use of Medication to Treat Attention-Deficit/Hyperactivity Disorder in Young Children: The Role of Maternal History of Psychotropic Medication Use.

5 G96 wells (1 kit)25 1 mg500 gm. 1 G

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#34524565   2021/09/15 To Up

Influence of Moxonidine and Bisoprolol on Morphofunctional Condition of Arterial Wall and Telomerase Activity in Postmenopausal Women with Arterial Hypertension and Osteopenia. The Results from a Moscow Randomized Study.

To compare the effect of 12 months of treatment with moxonidine or bisoprolol on telomerase activity (TA) and parameters characterizing the arterial wall state in postmenopausal women with arterial hypertension (AH) and osteopenia.
E Dudinskaya, O Tkacheva, E Bazaeva, L Matchekhina, K Eruslanova, N Sharashkina, Yu Kotovskaya, V Larina

1042 related Products with: Influence of Moxonidine and Bisoprolol on Morphofunctional Condition of Arterial Wall and Telomerase Activity in Postmenopausal Women with Arterial Hypertension and Osteopenia. The Results from a Moscow Randomized Study.

1000 tests100ug10 mg10 mg100ul500 mg25 mg1000 5 G100ug1000 TESTS/0.65ml25 mg

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#34524467   2021/09/15 To Up

Feruloyl esterase Fae1 is required specifically for host colonisation by the rice-blast fungus Magnaporthe oryzae.

Plant cell wall acts as a primary barrier for microbial pathogens during infection. A cell wall-degrading enzyme thus may be a crucial virulence factor, as it may aid the pathogen in successful host invasion. Nine genes coding for feruloyl esterases (Fae), likely involved in plant cell wall degradation, have been annotated in the genome of the cereal-blast fungus Magnaporthe oryzae. However, role of any Fae in pathogenicity of M. oryzae remains hitherto under explored. Here, we identified FAE1 gene (MGG_08737) that was significantly upregulated during host penetration and subsequent colonisation stages of infection. Accordingly, while deletion of FAE1 in M. oryzae did not affect the vegetative growth and asexual development, the fae1Δ mutant showed significantly reduced pathogenesis on rice plants, mainly due to impaired host invasion and colonisation. Very few (< 10%) fae1Δ appressoria that formed the primary invasive hyphae failed to elaborate from the first invaded cell to the neighbouring plant cells. Interestingly, exogenously added glucose, as a simple carbon source, or ferulic acid, a product of the Fae activity, significantly supported the invasive growth of the fae1Δ mutant. We show that the Fae1-based feruloyl esterase activity, by targeting the plant cell wall, plays an important role in accumulating ferulic acid and/or sugar molecules, as a likely energy source, to enable host invasion and colonisation by M. oryzae. Given its role in plant cell wall digestion and host colonisation, M. oryzae Fae1 could be a potential candidate for a novel antifungal strategy and a biotechnological application in biofuel production.
Akhil Thaker, Khyati Mehta, Rajesh Patkar

1282 related Products with: Feruloyl esterase Fae1 is required specifically for host colonisation by the rice-blast fungus Magnaporthe oryzae.

250 ml25 µg0.2 mg0.1ml (1mg/ml)1 LITRE1 ml25 µg100 TESTS100 ml0.1 mg0.25 mg0.1 mg

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#34524465   2021/09/15 To Up

Super-resolution imaging illuminates new dynamic behaviors of cellulose synthase.

Confocal imaging has shown that CELLULOSE SYNTHASE (CESA) particles move through the plasma membrane as they synthesize cellulose. However, the resolution limit of confocal microscopy circumscribes what can be discovered about these tiny biosynthetic machines. Here, we applied Structured Illumination Microscopy (SIM), which improves resolution two-fold over confocal or widefield imaging, to explore the dynamic behaviors of CESA particles in living plant cells. SIM imaging reveals that Arabidopsis thaliana CESA particles are more than twice as dense in the plasma membrane as previously estimated, helping explain the dense arrangement of cellulose observed in new wall layers. CESA particles tracked by SIM display minimal variation in velocity, suggesting coordinated control of CESA catalytic activity within single complexes and that CESA complexes might move steadily in tandem to generate larger cellulose fibrils or bundles. SIM data also reveal that CESA particles vary in their overlaps with microtubule tracks and can complete U-turns without changing speed. CESA track patterns can vary widely between neighboring cells of similar shape, implying that cellulose patterning is not the sole determinant of cellular growth anisotropy. Together, these findings highlight SIM as a powerful tool to advance CESA imaging beyond the resolution limit of conventional light microscopy.
Sydney G Duncombe, Samir Grama Chethan, Charles T Anderson

2028 related Products with: Super-resolution imaging illuminates new dynamic behaviors of cellulose synthase.

200 100ul100ug Lyophilized 125 ml 250ul10 ug100ug Lyophilized100 96 wells (1 kit)1 kit100ug Lyophilized

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#34524464   2021/09/15 To Up

A Rich and Bountiful Harvest: Key Discoveries in Plant Cell Biology.

The field of plant cell biology has a rich history of discovery, going back to Robert Hooke's discovery of cells themselves. The development of microscopes and preparation techniques has allowed for the visualization of subcellular structures, and the use of protein biochemistry, genetics, and molecular biology has enabled the identification of proteins and mechanisms that regulate key cellular processes. In this review, seven senior plant cell biologists reflect on the development of this research field in the past decades, including the foundational contributions that their teams have made to our rich, current insights into cell biology. Topics covered include signaling and cell morphogenesis, membrane trafficking, cytokinesis, cytoskeletal regulation, and cell wall biology. In addition, these scientists illustrate the pathways to discovery in this exciting research field.
Alice Y Cheung, Daniel J Cosgrove, Ikuko Hara-Nishimura, Gerd Jürgens, Clive Lloyd, David G Robinson, L Andrew Staehelin, Dolf Weijers

2751 related Products with: A Rich and Bountiful Harvest: Key Discoveries in Plant Cell Biology.

4/120 Packing /sleeve/bo100ug Lyophilized2 Pieces/Box1.00 flask1 kit100ug Lyophilized96 samples

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