Results 101 to 110 of about 32,610 (226)

Rare Ophiuroid-Type Steroid 3β,21-, 3β,22-, and 3α,22-Disulfates from the Slime Sea Star Pteraster marsippus and Their Colony-Inhibiting Effects against Human Breast Cancer Cells

Marine Drugs
Two new steroid 3β,21-disulfates (1, 2) and two new steroid 3β,22- and 3α,22-disulfates (3, 4), along with the previously known monoamine alkaloid tryptamine (5) were found in the ethanolic extract of the Far Eastern slime sea star Pteraster marsippus ...
Alla A. Kicha, Timofey V. Malyarenko, Alexandra S. Kuzmich, Olesya S. Malyarenko, Anatoly I. Kalinovsky, Roman S. Popov, Dmitriy K. Tolkanov, Natalia V. Ivanchina   +7 more
doaj   +1 more source

MorphoNet 2.0: An innovative approach for qualitative assessment and segmentation curation of large-scale 3D time-lapse imaging datasets

eLife
Thanks to recent promising advances in AI, automated segmentation of imaging datasets has made significant strides. However, the evaluation and curation of 3D and 3D+t datasets remain extremely challenging and highly resource-intensive.
Benjamin Gallean, Tao Laurent, Kilian Biasuz, Ange Clement, Noura Faraj, Patrick Lemaire, Emmanuel Faure   +6 more
doaj   +1 more source

The NASA/National Space Science Data Center trapped radiation environment model program, 1964 - 1991 [PDF]

The major effort that NASA, initially with the help of the United States Air Force (USAF), carried out for 27 years to synthesize the experimental and theoretical results of space research related to energetic charged particles into a quantitative ...
Vette, James I.
core   +1 more source

New Polyhydroxysteroid Glycosides with Antioxidant Activity from the Far Eastern Sea Star Ceramaster patagonicus

Marine Drugs
Four new glycosides of polyhydroxysteroids, ceramasterosides A, B, D, and E (1–4), and two previously known compounds, ceramasteroside C1 (5) and attenuatoside B-I (6), were isolated from an extract of a deep-sea sea star species, the orange cookie star ...
Timofey V. Malyarenko, Viktor M. Zakharenko, Alla A. Kicha, Arina I. Ponomarenko, Igor V. Manzhulo, Anatoly I. Kalinovsky, Roman S. Popov, Pavel S. Dmitrenok, Natalia V. Ivanchina   +8 more
doaj   +1 more source

The earth's trapped radiation belts [PDF]

The near-earth charged particle environment is discussed in terms of spacecraft design criteria.
Mcelroy, M. B., Noll, R. B.
core   +1 more source

SALMFamide salmagundi: The biology of a neuropeptide family in echinoderms [PDF]

, 2014
Ajayi, Aloyz, Beer, Bremaeker, Burke, Burns, Byrne, Byrne, Cisternas, Clarke, Cobb, Cobb, Conzelmann, Conzelmann, De Bremaeker, De Bremaeker, De Bremaeker, Du, Dupont, Díaz-Miranda, Díaz-Miranda, Díaz-Miranda, Elphick, Elphick, Elphick, Elphick, Elphick, Elphick, Elphick, Elphick, Elphick, Fujisawa, García-Arrarás, García-Arrarás, Ghyoot, Heinzeller, Heinzeller, Hewes, Hirokawa, Hoekstra, Jekely, Jorgensen, Lange, Mallefet, Maurice R. Elphick, Melarange, Melarange, Mirabeau, Mita, Mita, Moore, Moss, Nakano, Newman, Newman, Ohtani, Otara, Pentreath, Pisani, Price, Price, Primeaux, Rowe, Rowe, Semmens, Sodergren, Thorndyke, Tsutsui, Ubuka, Wegener, Yun, Yun   +71 more
core   +1 more source

Measurements at the southern magnetic conju- gate region of the fission debris from the starfish nuclear detonation [PDF]

Measurement of fission products from Star Fish high-altitude nuclear explosion with recording gamma-ray ...
Colgate, S. A., Darcy, R. G.
core   +1 more source

The effect of pulse stimulation on marine biota - Research in relation to ICES advice - Progress report on the effects on benthic invertebrates [PDF]

In response to ecosystem related concerns about bottom trawling and particularly beam trawling that were raised by various scientists in the last decades of the previous century.
Burggraaf, D., Gool, A.C.M., van, Haan, D., de, Marlen, B., van   +3 more
core  

From gonadotropin-inhibitory hormone to SIFamides: Are echinoderm SALMFamides the "missing link" in a bilaterian family of neuropeptides that regulate reproductive processes? [PDF]

, 2013
Bentley, Bonini, Broeck, Dockray, Díaz-Miranda, Elphick, Elphick, Elphick, Elphick, Elphick, Elphick, Elphick, Elshourbagy, Gouarderes, Hartenstein, Hewes, Hinuma, Janssen, Jekely, Jorgensen, Krishnan, Li, Liu, Maurice R. Elphick, Melarange, Melarange, Mirabeau, Mita, Mita, Mollereau, Newman, Newman, Perry, Putnam, Rowe, Satake, Terhzaz, Tsutsui, Ubuka, Ubuka, Van Kesteren, Veenstra, Veenstra, Vilim, Yang, Yasuda, Zhang   +46 more
core   +1 more source

Progress update of NASA's free-piston Stirling space power converter technology project [PDF]

A progress update is presented of the NASA LeRC Free-Piston Stirling Space Power Converter Technology Project. This work is being conducted under NASA's Civil Space Technology Initiative (CSTI).
Alger, Donald, Dudenhoefer, James E., Winter, Jerry M.   +2 more
core   +1 more source