Results 71 to 80 of about 253,535 (258)

Red Supergiants in the Andromeda Galaxy (M31)

, 2009
Red supergiants are a short-lived stage in the evolution of moderately massive stars (10-25Mo), and as such their location in the H-R diagram provides an exacting test of stellar evolutionary models.
Andre Maeder, Bertrand Plez, Bessell, Bianchi, Buser, Carpenter, Charbonnel, Choi, Courteau, Crockett, David R. Silva, Drout, Eldridge, Emily M. Levesque, Esteban, Geoffrey C. Clayton, Georges Meynet, Gustafsson, Gustafsson, Humphreys, Hurley-Keller, Jaschek, Josselin, Knut A. G. Olsen, Levesque, Levesque, Levesque, Levesque, Maeder, Mallik, Massey, Massey, Massey, Massey, Massey, Massey, Massey, Massey, Massey, Philip Massey, Plez, Plez, Poelarends, Pojmanski, Schaerer, Schaller, Schuster, Smith, Sofue, van den Bergh, Venn, Westerlund   +51 more
core   +1 more source

Transit spectrophotometry of the exoplanet HD189733b. I. Searching for water but finding haze with HST NICMOS [PDF]

, 2009
We present Hubble Space Telescope near-infrared transit photometry of the nearby hot-Jupiter HD189733b. The observations were taken with the NICMOS instrument during five transits, with three transits executed with a narrowband filter at 1.87 microns and
A. Lecavelier des Etangs, A. Vidal-Madjar, Ballester, Barber, Bigot, Bouchy, Brown, Burrows, Carter, Charbonneau, Claret, D. K. Sing, Deming, Désert, Désert, Fortney, Fortney, G. E. Ballester, G. Hebrard, G. W. Henry, Grillmair, Grillmair, Henry, Hubeny, Hébrard, J.-M. Désert, Knutson, Knutson, Knutson, Lecavelier des Etangs, Lecavelier des Etangs, Mandel, Moutou, Neckel, Pont, Pont, Pont, Pont, Pál, Redfield, Sing, Sing, Snellen, Swain, Swain, V. Parmentier, Vidal-Madjar, Vidal-Madjar, Vidal-Madjar, Winn, Zahnle   +50 more
core   +3 more sources

A Nano‐Interception Strategy for Chronic Heart Failure: Prussian Blue Nanoparticles Disrupt Fibroblast‐Immune Communication via CCL2 Sequestration

Advanced Materials, EarlyView.
A nano‐interception strategy disrupts pathogenic fibroblast–macrophage crosstalk in chronic heart failure. Scalable Prussian blue nanoparticles selectively sequester CCL2 via ultrahigh‐affinity binding, preventing CCR2+ macrophage recruitment and breaking a key fibro‐inflammatory circuit. This approach demonstrates robust efficacy in murine and porcine
Bo Chen, Gao Wei, Guowei Zeng, Haoyu Li, Rongrong Wu, Hongyu Yan, Zijie Zhou, Kai Luo, Xiaoyang Zhang, Cong Li, Longming Huang, Lingyan Cheng, Xinjie Zhang, Jinghao Zheng, Bozhong Shi, Xiaojun Cai, Xiaomin He   +16 more
wiley   +1 more source

Study of the ascorbic acid accumulation in Thymus L. genus species of Ukraine flora

Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki
The Thymus L. genus species are extremely widespread in temperate countries and number up to 200 main wild plants, of which up to 50 have been identified in the modern Ukraine flora. Extracts from the official species of the Thymus L.
O. V. Mazulin, Ya. M. Steshenko, L. A. Fukleva, H. V. Mazulin   +3 more
doaj   +1 more source

Near‐Infrared‐Driven Metal–Organic Frameworks‐Based Nanorobots for Controlled Photothermal‐Chemical Therapy Synergistic Induction of Cancer Cell Death

Advanced Robotics Research, EarlyView.
To achieve efficient cancer cell death, a bowl‐shaped PDA@UiO‐66@DOX nanorobot drug‐delivery nanoplatform was developed. Near‐infrared irradiation not only drives the nanorobot to exhibit self‐thermophoretic motion and elevates temperature but also triggers Doxorubicin (DOX) release via hyperthermia, enhancing cancer cells uptake of DOX and thereby ...
Tong Lin, Jie Yang, Yongcheng Li, Yuepeng Cai, Xiaosong Zhou, Ting Chen, Renfeng Dong   +6 more
wiley   +1 more source

Influence of Metal Ion Complexation on the Acid Dissociation of 4'-Carboxybenzo-24-Crown-8 in an Ethanol-Water Mixture [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1997
A spectrophotometric method was used to determine the acidity constant of 4'-carboxybenzo-24-crown-8 in 52% (w/w) ethanol-water mixture. The acid dissociation constant, Ka, was found to increase in the presence of Na+, K+, Rb+, Cs+ and Tl+ ions.
Ahmad Rouhollahi, Mohammad Reza Ganjali, Abolghasem Moghimi, Mojtaba Shamsipur   +3 more
doaj  

Analysis Of Vitamin C Level In Red And White Pepper (Punica granatum L.) Fruit Spectrophotometry UV-VIS

Window of Health, 2019
Vitamin C is one of the nutrients that act as antioxidants derived from fruits and green vegetables, such as the pomegranate (Punica granatum L.). This study aims to analisis levels of vitamin C in meat pomegranate (Punica granatum L.) red and white with
Andi Maulana, Zainal Abidin, Sugiarto Sadjidin, Tadjuddin Naid   +3 more
doaj   +1 more source

The expected performance of stellar parametrization with Gaia spectrophotometry

, 2012
Gaia will obtain astrometry and spectrophotometry for essentially all sources in the sky down to a broad band magnitude limit of G=20, an expected yield of 10^9 stars.
A. Vallenari, Allende Prieto, Bailer-Jones, Bailer-Jones, Bailer-Jones, Bailer-Jones, Bailer-Jones, Beers, Belikov, Blomme, Brott, Brown, Burges, C. A. L. Bailer-Jones, C. Liu, Cardelli, Cayrel, Cortes, de Bruijne, Heiter, Hill, Katz, Koleva, Lee, Lindegren, Luri, Mignard, Mortlock, P. Sartoretti, Perryman, R. Borrachero, R. Sordo, Re Fiorentin, Recio-Blanco, Straiz˘ys, Takeda, Tsalmantza, Wilhelm, Winter, X. Luri, Zhang   +40 more
core   +3 more sources

BGN/MDK Axis in the Melanoma Tumor Microenvironment Strengthens Tumor Malignancy by Modulating Cancer Cells and Cancer‐Associated Fibroblasts Crosstalk

Advanced Science, EarlyView.
This study reveals that m6A regulators cooperatively upregulate BGN in melanoma, promoting malignancy. Within the tumor microenvironment, CAFs show highest BGN expression. The BGN/MDK axis mediates cancer‐stroma crosstalk, driving normal fibroblast (NF) activation and enhancing the pro‐tumor effect of CAFs, highlighting a promising therapeutic target ...
Hao‐ze Shi, Ming‐yang Wu, Jin‐quan Liu, Cuicui Tian, Li Ma, Xue‐mei Zhou, Ze‐Hao Sun, Zhi‐yong Xu, Run‐dong Zhang, Shan‐yuan Ye, Li‐ming Huang, Yan Wang, Jing‐shu Xiong, Wen‐bo Bu, Xian‐feng Cheng, Jian‐fang Sun, Hao Chen   +16 more
wiley   +1 more source

Ultraviolet cometary spectrophotometry [PDF]

During the 13 shifts dedicated to observations of Comet Bradfield (including the two European shifts), five high dispersion exposures were obtained with the LWR camera, 27 low dispersion images with the LWR camera, and 36 low dispersion images with the ...
Ahearn, M. F.
core   +1 more source