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Search results for: (2-Aminopyridin-3-yl)methanol C6H8N2O CAS: 23612-57-9

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#33080629   2020/10/20 To Up

Stoma Closure Improves Head Circumference Growth in Very Preterm Infants after Necrotizing Enterocolitis.

 Very preterm infants (VPIs) surgically treated for necrotizing enterocolitis (NEC) are at risk of growth retardation. The aim of this study was to demonstrate and compare growth during the first 6 years of life in VPIs with stoma after NEC surgery with VPIs without NEC surgery.
Karina Dyrvig Honoré, Malene Nygaard Johansen, Lars Rasmussen, Gitte Zachariassen

2777 related Products with: Stoma Closure Improves Head Circumference Growth in Very Preterm Infants after Necrotizing Enterocolitis.

10ugProtein100.00 ug1 kit(96 Wells)100 μg

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#33080387   2020/10/17 To Up

Sonar and in situ surveys of eelgrass distribution, reproductive effort, and sexual recruitment contribution in a eutrophic bay with intensive human activities: Implication for seagrass conservation.

Seagrass beds are recognized as pivotal and among the most vulnerable coastal marine ecosystems globally. The eelgrass Zostera marina L. is the most widely distributed seagrass species and dominates the temperate northern hemisphere. However, an alarming decline in seagrass has been occurring worldwide due to multiple stressors. Seagrass meadow degradation is particularly serious in the Bohai Sea, in temperate China; however, large areas (> 500 ha) of seagrass meadows and population recruitment have rarely been reported in this area. In the present study, we report on a large eelgrass bed in a eutrophic bay of the Bohai Sea. Sonar and field survey methods were used to investigate the distribution of seagrass and its population recruitment. We also analyzed the major threats to this large seagrass bed. Results showed that a large Z. marina bed with an area of 694.36 ha occurred in this area of the Bohai Sea, with a peripheral area of ~25 km. Seagrass canopy height and plant coverage had a significant correlation with water depth. Asexual reproduction principally occurred in autumn and played a dominant role in population recruitment in vegetated areas, where no seedlings successfully colonized. In contrast, a considerable number of seedlings survived in the seagrass meadow gaps, and thus played a critical role in the recruitment in these areas. The maximum reproductive shoot densities were about 100 and 70 shoots m at sampling site (S)-1 and S-2 in 2018, respectively, which was about two times more than in 2019 (50 and 20 reproductive shoots m at S-1 and S-2, respectively). The potential seed output per unit area in 2019 was about 1020 seeds m at S-1 and 830 seeds m at S-2, and the seed output in the study area was at a low level compared with global values. Overall, high spring and summer water temperature appeared to induce sexual reproduction of Z. marina in the study area, including reproductive effort, reproductive investment, and seedling development. Furthermore, eelgrass height, aboveground biomass, and density were significantly related to water temperature. Among the potential threatening factors to seagrass in this area, the activities of clam harvesting were intense with daily clam catches >2000 kg, leading to patchy seagrass meadows, especially in the fringe areas. The seagrass bed was also threatened by marine pollution (nutrient loading) and land reclamation. Therefore, the protection and restoration of this seagrass bed are strongly recommended. Our study will provide fundamental information for the conservation and management strategies of large eelgrass beds in the Bohai Sea.
Shaochun Xu, Shuai Xu, Yi Zhou, Shidong Yue, Yongliang Qiao, Mingjie Liu, Ruiting Gu, Xiaoyue Song, Yu Zhang, Xiaomei Zhang

1349 related Products with: Sonar and in situ surveys of eelgrass distribution, reproductive effort, and sexual recruitment contribution in a eutrophic bay with intensive human activities: Implication for seagrass conservation.

20 100 μg100 μg100 μg100 μg 100 UG100 μg100 μg100 μg100 μg100 μg100 μg

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#33080328   2020/10/17 To Up

RIFM fragrance ingredient safety assessment, 2,5-diethyltetrahydrofuran, CAS Registry Number 41239-48-9.


A M Api, D Belsito, S Biserta, D Botelho, M Bruze, G A Burton, J Buschmann, M A Cancellieri, M L Dagli, M Date, W Dekant, C Deodhar, A D Fryer, S Gadhia, L Jones, K Joshi, A Lapczynski, M Lavelle, D C Liebler, M Na, D O'Brien, A Patel, T M Penning, G Ritacco, F Rodriguez-Ropero, J Romine, N Sadekar, D Salvito, T W Schultz, F Siddiqi, I G Sipes, G Sullivan, Y Thakkar, Y Tokura, S Tsang

1042 related Products with: RIFM fragrance ingredient safety assessment, 2,5-diethyltetrahydrofuran, CAS Registry Number 41239-48-9.

500 G 5 MG 10G 25 G 100 G 500 G 5 G 1 G 1 G

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#33080326   2020/10/17 To Up

Comparison of Open And Closed-Cell Stent Design Outcomes after Carotid Artery Stenting in The Vascular Quality Initiative.

The association between stent design and outcomes after carotid artery stenting (CAS) remains controversial. There are conflicting data in the current literature regarding the superiority of any specific stent design. This study investigates the association between cell design and outcomes after carotid artery stenting (CAS) in real world setting.
Muhammad Faateh, Hanaa Dakour-Aridi, Asma Mathlouthi, Satinderjit Locham, Isaac Naazie, Mahmoud Malas

2741 related Products with: Comparison of Open And Closed-Cell Stent Design Outcomes after Carotid Artery Stenting in The Vascular Quality Initiative.

1.00 flask1.00 flaskcase2 Pieces/Box96 samples3 inhibitors100ug Lyophilized1.00 flask

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#33080229   2020/10/12 To Up

An Open Resource for Non-human Primate Optogenetics.

Optogenetics has revolutionized neuroscience in small laboratory animals, but its effect on animal models more closely related to humans, such as non-human primates (NHPs), has been mixed. To make evidence-based decisions in primate optogenetics, the scientific community would benefit from a centralized database listing all attempts, successful and unsuccessful, of using optogenetics in the primate brain. We contacted members of the community to ask for their contributions to an open science initiative. As of this writing, 45 laboratories around the world contributed more than 1,000 injection experiments, including precise details regarding their methods and outcomes. Of those entries, more than half had not been published. The resource is free for everyone to consult and contribute to on the Open Science Framework website. Here we review some of the insights from this initial release of the database and discuss methodological considerations to improve the success of optogenetic experiments in NHPs.
Sébastien Tremblay, Leah Acker, Arash Afraz, Daniel L Albaugh, Hidetoshi Amita, Ariana R Andrei, Alessandra Angelucci, Amir Aschner, Puiu F Balan, Michele A Basso, Giacomo Benvenuti, Martin O Bohlen, Michael J Caiola, Roberto Calcedo, James Cavanaugh, Yuzhi Chen, Spencer Chen, Mykyta M Chernov, Andrew M Clark, Ji Dai, Samantha R Debes, Karl Deisseroth, Robert Desimone, Valentin Dragoi, Seth W Egger, Mark A G Eldridge, Hala G El-Nahal, Francesco Fabbrini, Frederick Federer, Christopher R Fetsch, Michal G Fortuna, Robert M Friedman, Naotaka Fujii, Alexander Gail, Adriana Galvan, Supriya Ghosh, Marc Alwin Gieselmann, Roberto A Gulli, Okihide Hikosaka, Eghbal A Hosseini, Xing Hu, Janina Hüer, Ken-Ichi Inoue, Roger Janz, Mehrdad Jazayeri, Rundong Jiang, Niansheng Ju, Kohitij Kar, Carsten Klein, Adam Kohn, Misako Komatsu, Kazutaka Maeda, Julio C Martinez-Trujillo, Masayuki Matsumoto, John H R Maunsell, Diego Mendoza-Halliday, Ilya E Monosov, Ross S Muers, Lauri Nurminen, Michael Ortiz-Rios, Daniel J O'Shea, Stéphane Palfi, Christopher I Petkov, Sorin Pojoga, Rishi Rajalingham, Charu Ramakrishnan, Evan D Remington, Cambria Revsine, Anna W Roe, Philip N Sabes, Richard C Saunders, Hansjörg Scherberger, Michael C Schmid, Wolfram Schultz, Eyal Seidemann, Yann-Suhan Senova, Michael N Shadlen, David L Sheinberg, Caitlin Siu, Yoland Smith, Selina S Solomon, Marc A Sommer, John L Spudich, William R Stauffer, Masahiko Takada, Shiming Tang, Alexander Thiele, Stefan Treue, Wim Vanduffel, Rufin Vogels, Matthew P Whitmire, Thomas Wichmann, Robert H Wurtz, Haoran Xu, Azadeh Yazdan-Shahmorad, Krishna V Shenoy, James J DiCarlo, Michael L Platt

1435 related Products with: An Open Resource for Non-human Primate Optogenetics.

16-22 Sample Kit 100ul 100ul1-8 Sample Kit25 µg 100ul25 µg100 TESTS32-50 Sample Kit25 TESTS 100ul100.00 ug

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#33080137   2020/10/20 To Up

Cobalt Phosphide Nanoflake-Induced Flower-like Sulfur for High Redox Kinetics and Fast Ion Transfer in Lithium-Sulfur Batteries.

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Congyu Qi, Zheng Li, Changzhi Sun, Chunhua Chen, Jun Jin, Zhaoyin Wen

1348 related Products with: Cobalt Phosphide Nanoflake-Induced Flower-like Sulfur for High Redox Kinetics and Fast Ion Transfer in Lithium-Sulfur Batteries.

50 ul2 Pieces/Box4 Membranes/Box2 Pieces/Box4 Membranes/Box4 Arrays/Slide400Tests4 Arrays/Slide

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#33080131   2020/10/20 To Up

Compositional Engineering Study of Lead-Free Hybrid Perovskites for Solar Cell Applications.

Hybrid organic-inorganic perovskite solar cells (HOIPs), especially CHNHPbI (MAPbI), have received tremendous attention due to their excellent power conversion efficiency (25.2%). However, two fundamental hurdles, long-term stability and lead (Pb) toxicity, prevent HOIPs from practical applications in the solar industry. To overcome these issues, compositional engineering has been used to modify cations at A- and B-sites and anions at the X-site in the general form ABX. In this work, we used the density functional theory (DFT) to incorporate Rb, Cs, and FA at the A-site to minimize the volatile nature of MA, while the highly stable Ca and Sr were mixed with the less stable Ge and Sn at the B-site to obtain a Pb-free perovskite. To further enhance the stability, we mixed the X-site anions (I/Br). Through this approach, we introduced 20 new perovskite species to the lead-free perovskite family and 7 to the lead-containing perovskite family. The molecular dynamic (MD) simulations, enthalpy formation, and tolerance and octahedral factor study confirm that all of the perovskite alloys we introduced here are as stable as pristine MAPbI. All Pb-free perovskites have suitable and direct band gaps (1.42-1.77 eV) at the Γ-point, which are highly desirable for solar cell applications. Most of our Pb-free perovskites have smaller effective masses and exciton binding energies. Finally, we show that the introduced perovskites have high absorption coefficients (10 cm) and strong absorption efficiencies (above 90%) in a wide spectral range (300-1200 nm), reinforcing their significant potential applications. This study provides a new way of searching for stable lead-free perovskites for sustainable and green energy applications.
Roshan Ali, Zhen-Gang Zhu, Qing-Bo Yan, Qing-Rong Zheng, Gang Su, Amel Laref, Chaudry Sajed Saraj, Chunlei Guo

1869 related Products with: Compositional Engineering Study of Lead-Free Hybrid Perovskites for Solar Cell Applications.

0.2 mg25 µg0.1 mg500 ml250 ml0.25 mg500 ml1 LITRE10 lt50 ml100 ml

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#33079243   2020/10/20 To Up

Estimation of various radiological parameters associated with radioactive contents emanating with fly ash from Sahiwal coal-fuelled power plant, Pakistan.

The release of natural radioactive materials with the emission of fly ash as a result of coal burning in power generation plants is considered amongst the sources that elevate the technologically environmental radioactivity level. This research mainly concerns the assessment of various radiological parameters including excess lifetime cancer risk due to natural radioactive contents associated with fly ash emitted to the surrounding environment from the stack of 1320 Mw Sahiwal coal-fuelled power generation plant (CFPP). For this purpose, fifty-four soil samples were collected in a radius of 4 Km from CFPP and a highly background radiation-shielded HPGe system is used to measure radioactivity in the collected samples. The activity concentrations of radium-226, potassium-40, and thorium-232 in collected samples was found to be in the range of 20 to 138, 43 to 860, and 27 to 127 Bq/kg with average values of 66, 409, and 67 Bq/kg respectively. Activity concentrations of radium-226 and thorium-232 were observed significantly higher than UNSCEAR reported typical global average values. A significant decrease in the level of the aforementioned radionuclides in the collected soil samples was observed with increasing distance from the power plant, which is a clear indication for the elevation of radioactivity concentrations in the surrounding environment as a result of the operation of the CFPP. To assess the radiation dose delivered to the occupational workers and inhabitants living next to Sahiwal CFPP, absorbed γ-dose rate (D), outdoor annual effective dose rate (E), and excess lifetime cancer risk (ELCR) were estimated and these were found higher than the UNSCEAR recommended values of 59 nGy/h, 0.07 mSv/y, and 2.9 × 10 respectively. The outcome of this first systematic study is the assessment of potential radiological health risk to the occupational workers as well as the inhabitants living in the proximity of this CFPP.
Ihsan Ullah Khan, Weimin Sun, Elfed Lewis

1438 related Products with: Estimation of various radiological parameters associated with radioactive contents emanating with fly ash from Sahiwal coal-fuelled power plant, Pakistan.

6200 ul481 kit

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