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Search results for: Flurochloridon CAS Number [61213 25 0]

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#38494344   2024/03/17 To Up

Floral resource partitioning of coexisting bumble bees: Distinguishing species-, colony-, and individual-level effects.

Resource partitioning is considered a key factor in alleviating competitive interactions, enabling coexistence among consumer species. However, most studies have focused on resource partitioning between species, ignoring the potentially critical role of intraspecific variation in resource use. We investigated floral resource partitioning across species, colonies, and individuals in a species-rich bumblebee community in the diversification center of bumblebees. We used a total of 10,598 bumblebees belonging to 13 species across 5 years in the Hengduan Mountains of southwest China. First, we evaluated the influence of a comprehensive set of floral traits, including both those related to attractiveness (flower color and shape) and rewards (pollen, sugar ratio, nectar volume, sugar concentration, and amino acid content) on resource partitioning at the species level in bumblebee-plant networks. Then, we explored intraspecific resource partitioning on the colony and individual levels. Our results suggest that bumblebee species differ substantially in their use of the available floral resources, and that this mainly depends on flower attractiveness (floral color and shape). Interestingly, we also detected floral resource partitioning at the colony level within all commonest bumblebee species evaluated. In general, floral resource partitioning between bumblebee individuals decreased with species- and individual-level variation in body size (intertegular span). These results suggest that bumblebee species may coexist via the flexibility in their preferences for specific floral traits, which filters up to support the co-occurrence of high numbers of species and individuals in this global hotspot of species richness.
Zhong-Ming Ye, Yong-Deng He, Pedro J Bergamo, Michael C Orr, Wen Huang, Xiao-Fang Jin, Han-Ning Lun, Qing-Feng Wang, Chun-Feng Yang

1207 related Products with: Floral resource partitioning of coexisting bumble bees: Distinguishing species-, colony-, and individual-level effects.

50 ug 96T50 ug 50 ug 100ul50 ug 50 ug 100 ug 50 ug 50ul 100ul 100ul

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#38493980   2024/03/15 To Up

RIFM fragrance ingredient safety assessment, cis- and trans-p-1(7),8-menthadien-2-yl acetate, CAS registry number 71660-03-2.


A M Api, A Bartlett, D Belsito, D Botelho, M Bruze, A Bryant-Freidrich, G A Burton, M A Cancellieri, H Chon, M L Dagli, W Dekant, C Deodhar, K Farrell, A D Fryer, L Jones, K Joshi, A Lapczynski, M Lavelle, I Lee, H Moustakas, J Muldoon, T M Penning, G Ritacco, N Sadekar, I Schember, T W Schultz, F Siddiqi, I G Sipes, G Sullivan, Y Thakkar, Y Tokura

1854 related Products with: RIFM fragrance ingredient safety assessment, cis- and trans-p-1(7),8-menthadien-2-yl acetate, CAS registry number 71660-03-2.

1 G 1KG500 MG 100 G 1 G2.5 mg 500 G 1 G25 mg 100 G 25 G 1KG

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#38493977   2024/03/15 To Up

RIFM fragrance ingredient safety assessment, diethyldimethylcyclohex-2-en-1-one, CAS Registry Number 68845-36-3.


A M Api, A Bartlett, D Belsito, D Botelho, M Bruze, A Bryant-Freidrich, G A Burton, M A Cancellieri, H Chon, M L Dagli, W Dekant, C Deodhar, K Farrell, A D Fryer, L Jones, K Joshi, A Lapczynski, M Lavelle, I Lee, H Moustakas, J Muldoon, T M Penning, G Ritacco, N Sadekar, I Schember, T W Schultz, F Siddiqi, I G Sipes, G Sullivan, Y Thakkar, Y Tokura

1613 related Products with: RIFM fragrance ingredient safety assessment, diethyldimethylcyclohex-2-en-1-one, CAS Registry Number 68845-36-3.

500 G 5 MG 5 G 100 G 25 G 25 G 5 G 1 G 500 G

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#38492855   2024/03/14 To Up

RIFM fragrance ingredient safety assessment, 3-phenyl-3-buten-1-yl acetate, CAS Registry Number 7306-12-9.


A M Api, A Bartlett, D Belsito, D Botelho, M Bruze, A Bryant-Freidrich, G A Burton, M A Cancellieri, H Chon, M L Dagli, W Dekant, C Deodhar, K Farrell, A D Fryer, L Jones, K Joshi, A Lapczynski, M Lavelle, I Lee, H Moustakas, J Muldoon, T M Penning, G Ritacco, N Sadekar, I Schember, T W Schultz, F Siddiqi, I G Sipes, G Sullivan, Y Thakkar, Y Tokura

2727 related Products with: RIFM fragrance ingredient safety assessment, 3-phenyl-3-buten-1-yl acetate, CAS Registry Number 7306-12-9.

5 G 5 G 100 G 1 G 100 G 5 G 100 G25 mg 1KG 100 G100 MG 1 G

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#38490415   2024/03/14 To Up

Uptake of cyclic CO in maize and tomato: Results from a greenhouse study.

Cyclic CO (cCO, CAS number 1190931-27-1) is a perfluoralkyl ether used as a polymerization aid in the synthesis of fluoropolymers and produced since 2011 as substitute of PFOA. This work reports the first data on bioaccumulation of cCO on terrestrial plants (maize and tomato). In general, the observed accumulation and translocation of cCO in plants is low or negligible. For maize a bioconcentration factor (BCF) of about 39 was observed in the root compartment and much lower (BCF = 12) in the aboveground tissues. In tomato the observed BCFs are substantially lower, with a maximum of 2.5 in leaves. The differences observed between the uptake and distribution of cCO in maize and tomato plants are probably due to differences in plant physiology (but also in the experimental design of the tests). Maize plants grown at different concentrations in this study did not show relevant differences in term of biomass and growth, while tomato plants exposed to cCO were subject to a delay in the ripening of the fruits (and relative biomass). The overall results are discussed in comparison with literature data available for legacy PFASs but the comparison is difficult due to differences in the experimental design. It is relevant to note that the concentrations tested in this study are significantly higher than expected environmental concentrations.
Elisa C Bizzotto, Giovanni Libralato, Antonino de Natale, Petra Scanferla, Marco Vighi, Antonio Marcomini

2381 related Products with: Uptake of cyclic CO in maize and tomato: Results from a greenhouse study.

100ug Lyophilized100ug100ug

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#38490354   2024/03/13 To Up

RIFM fragrance ingredient safety assessment, spiro[1,3-dioxolane-2,8'(5'H)-[2H-2,4a]methanonaphthalene],hexahydro-1',1',5',5'-tetramethyl-, [2'S-(2'α,4'aα,8'aα)]-, CAS Registry Number 154171-77-4.


A M Api, A Bartlett, D Belsito, D Botelho, M Bruze, A Bryant-Freidrich, G A Burton, M A Cancellieri, H Chon, M L Dagli, W Dekant, C Deodhar, K Farrell, A D Fryer, L Jones, K Joshi, A Lapczynski, M Lavelle, I Lee, H Moustakas, J Muldoon, T M Penning, G Ritacco, N Sadekar, I Schember, T W Schultz, F Siddiqi, I G Sipes, G Sullivan, Y Thakkar, Y Tokura

1179 related Products with: RIFM fragrance ingredient safety assessment, spiro[1,3-dioxolane-2,8'(5'H)-[2H-2,4a]methanonaphthalene],hexahydro-1',1',5',5'-tetramethyl-, [2'S-(2'α,4'aα,8'aα)]-, CAS Registry Number 154171-77-4.

25 G 5 MG 25 G 1KG 5 G500 MG 25 G 5 G 25 G 5 G 500 G 5 G

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#38489622   // To Up

Observation of Photoassociation Resonances in Ultracold Atom-Molecule Collisions.

We report on the observation of photoassociation resonances in ultracold collisions between ^{23}Na^{40}K molecules and ^{40}K atoms. We perform photoassociation in a long-wavelength optical dipole trap to form deeply bound triatomic molecules in electronically excited states. The atom-molecule Feshbach resonance is used to enhance the free-bound Franck-Condon overlap. The photoassociation into well-defined quantum states of excited triatomic molecules is identified by observing resonantly enhanced loss features. These loss features depend on the polarization of the photoassociation lasers, allowing us to assign rotational quantum numbers. The observation of ultracold atom-molecule photoassociation resonances paves the way toward preparing ground-state triatomic molecules, provides a new high-resolution spectroscopy technique for polyatomic molecules, and is also important to atom-molecule Feshbach resonances.
Jin Cao, Bo-Yuan Wang, Huan Yang, Zhi-Jie Fan, Zhen Su, Jun Rui, Bo Zhao, Jian-Wei Pan

1185 related Products with: Observation of Photoassociation Resonances in Ultracold Atom-Molecule Collisions.

50 50 50 96T96tests96T100μg100 μg100ug100 μg

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#38489356   2024/03/15 To Up

Efficient learning of mixed-state tomography for photonic quantum walk.

Noise-enhanced applications in open quantum walk (QW) has recently seen a surge due to their ability to improve performance. However, verifying the success of open QW is challenging, as mixed-state tomography is a resource-intensive process, and implementing all required measurements is almost impossible due to various physical constraints. To address this challenge, we present a neural-network-based method for reconstructing mixed states with a high fidelity (∼97.5%) while costing only 50% of the number of measurements typically required for open discrete-time QW in one dimension. Our method uses a neural density operator that models the system and environment, followed by a generalized natural gradient descent procedure that significantly speeds up the training process. Moreover, we introduce a compact interferometric measurement device, improving the scalability of our photonic QW setup that enables experimental learning of mixed states. Our results demonstrate that highly expressive neural networks can serve as powerful alternatives to traditional state tomography.
Qin-Qin Wang, Shaojun Dong, Xiao-Wei Li, Xiao-Ye Xu, Chao Wang, Shuai Han, Man-Hong Yung, Yong-Jian Han, Chuan-Feng Li, Guang-Can Guo

1326 related Products with: Efficient learning of mixed-state tomography for photonic quantum walk.

1,000 tests0.1 mg100 mg10 ml 500 ml 10 mg1 mg1 mg1ml 50 UG 100 G100 assays

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#38487926   2024/03/15 To Up

Prophylactic Supplementation with Lactobacillus Reuteri or Its Metabolite GABA Protects Against Acute Ischemic Cardiac Injury.

The gut microbiome has emerged as a potential target for the treatment of cardiovascular disease. Ischemia/reperfusion (I/R) after myocardial infarction is a serious complication and whether certain gut bacteria can serve as a treatment option remains unclear. Lactobacillus reuteri (L. reuteri) is a well-studied probiotic that can colonize mammals including humans with known cholesterol-lowering properties and anti-inflammatory effects. Here, the prophylactic cardioprotective effects of L. reuteri or its metabolite γ-aminobutyric acid (GABA) against acute ischemic cardiac injury caused by I/R surgery are demonstrated. The prophylactic gavage of L. reuteri or GABA confers cardioprotection mainly by suppressing cardiac inflammation upon I/R. Mechanistically, GABA gavage results in a decreased number of proinflammatory macrophages in I/R hearts and GABA gavage no longer confers any cardioprotection in I/R hearts upon the clearance of macrophages. In vitro studies with LPS-stimulated bone marrow-derived macrophages (BMDM) further reveal that GABA inhibits the polarization of macrophages toward the proinflammatory M1 phenotype by inhibiting lysosomal leakage and NLRP3 inflammasome activation. Together, this study demonstrates that the prophylactic oral administration of L. reuteri or its metabolite GABA attenuates macrophage-mediated cardiac inflammation and therefore alleviates cardiac dysfunction after I/R, thus providing a new prophylactic strategy to mitigate acute ischemic cardiac injury.
Jiawan Wang, Hao Zhang, Hailong Yuan, Siqi Chen, Ying Yu, Xuan Zhang, Zeyu Gao, Heng Du, Weitao Li, Yaohui Wang, Pengyan Xia, Jun Wang, Moshi Song

1597 related Products with: Prophylactic Supplementation with Lactobacillus Reuteri or Its Metabolite GABA Protects Against Acute Ischemic Cardiac Injury.

0.2 mg11mg10 ml (10X)96T100 μg1 mg0.1 ml

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