Results 71 to 80 of about 35,685 (305)

Evaluation of the activity of the immune system and age-related tissue markers in Turquoise killifish \ud (Nothobranchius furzeri, Jubb 1971) \ud and their role in cell ageing\ud [PDF]

, 2010
Currently the Turquoise Killifish is considered the best animal model suitable for aging research. \ud This annual fish, from south east Africa, shows an exceptionally adaptive behaviour to dry periods: indeed, due to this extreme environmental ...
Di Cicco, Emiliano, Rossi, Giacomo
core  

Energy input is primary controller of methane bubbling in subarctic lakes [PDF]

, 2014
Emission of methane (CH4) from surface waters is often dominated by ebullition (bubbling), a transport mode with high‐spatiotemporal variability. Based on new and extensive CH4 ebullition data, we demonstrate striking correlations (r2 between 0.92 and 0 ...
Anthony, Bastviken, Bastviken, Boylen, Brett F. Thornton, Callaghan, Christensen, Cole, David Bastviken, Downing, Downing, Duc, Golubyatnikov, Houser, Jackowicz-Korczynski, Karlsson, Karlsson, Kohler, Laudon, Malmer, Martin Wik, Olefeldt, Patrick M. Crill, Prowse, Repo, Rouse, Ruth K. Varner, Sally MacIntyre, Serreze, Smith, Walter, Walter, Wik, Wik, Yamamoto, Zeikus   +35 more
core   +3 more sources

Gray water treatment by a oxidation pond

Japan journal of water pollution research, 1987
屋外に作成した幅4m長さ8m深さ0.92mの実験池を用い, 小型酸化池における藻類による酸素供給について検討を加えた。供給水としては実際の雑排水に代わって, 人工下水を用いた。平均滞留時間を4.4, 8.9, 13.4, 18.0日まで4段階に変えて, 実験を行い, 結果を定常状態を仮定した数理モデルにより解析し, 次の結論を得た。1) 藻類による酸素供給は水深, 滞留時間にはあまり影響されず, 単位面積当りの栄養塩供給量により決定される。2) 藻類による酸素供給は面積当り最大10～15 [g/ (m2day)] 程度と推定される。3) 雑排水を水深1mの酸化池で処理しようとした場合, 10日程度の滞留時間が適当と考えられた。
Hiroyuki KAWASHIMA, Takao KAWADA, Mitsumasa OKADA, Motoyuki SUZUKI   +3 more
openaire   +2 more sources

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

Molecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova, Zuzana Kozovska, Ondrej Pos, Kristina Pavlov, Sachin Gulati, Peter Makovicky, Kristina Jakic, Monika Burikova, Eva Sedlackova, Barbora Svitkova, Silvia Tyciakova, Vojtech Bystry, Nicolas Blavet, Boris Tichy, Matej Hrnciar, Jaroslav Budis, Miroslav Tomas, Peter Dubovan, Georgina Kolnikova, Veronika Repaska, Nikoleta Mojzesova, Eva Zomborska, Daniel Pindak, Michal Mego, Tomas Szemes, Miroslava Matuskova   +25 more
wiley   +1 more source

Sustainability vs. Quality in gilthead seabream (Sparusaurata L.) farming: are trade-offs inevitable? [PDF]

, 2017
European aquaculture industry should be at the forefront of sustainable development, providing healthy and safe food of the highest quality to the consumer, through an environmentally sound approach.
Adams, Alasalvar, Allan, Amerio, Anastasiou, Ashie, Axel, Bagni, Benedito-Palos, Benedito-Palos, Benedito-Palos, Brundtland, Buttle, Carrera, Castro, Castro, Coppes, Damez, EFSA, EFSA, European Commission, European Commission, European Commission, Fagioli, FAO, FAO, Ferreira Pinto, Flos, Focardi, Fountoulaki, Francesco, Ganga, Ghatass, Ginés, Giuffrida, Gonçalves, Grigorakis, Grigorakis, Grigorakis, Haard, Hall, Haro, Hatlen, Hernández, Hernández, Hu, Huidobro, Huidobro, Hyldig, Iglesias, Izquierdo, Izquierdo, Jackson, Lawal, Lindemann, Martínez-Llorens, Martínez-Llorens, Matos, Matos, Matos, Matos, Matos, Meloni, Mennella, Menoyo, Mente, Mente, Mochizuki, Montero, Morales, Moretti, Nasopoulou, Naylor, Nengas, Nilsen, Nogueira, Nácher-Mestre, Nácher-Mestre, Orban, Ortuño, Picard, Piccino, Poli, Poli, Prein, Pérez, Ramalho Ribeiro, Reilly, Richard, Roncarati, Semenov, Sigholt, Silva, Silva, Sánchez-Lozano, Tejada, Terova, Trocino, Trushenski, Turchini, Urbieta, Valente, Verbeke, Vizcaíno, Volpato, Wassef, Xuan, Zhang, Álvarez, Álvarez, Álvarez-Chávez, Ólafsdóttir, Ólafsdóttir   +112 more
core   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

Effect of dissolved oxygen and aeration management on nitrification in catfish ponds

Journal of the World Aquaculture Society
Dissolved oxygen management of ponds plays a critical role in ictalurid catfish aquaculture production. If the minimum dissolved oxygen concentration falls below 3.0 mg O2 L−1, appetite is reduced, and production ultimately decreases. Although the effect
Brian D. Ott, Dakoda O. Chisolm, Thishya Perera   +2 more
doaj   +1 more source

Plutonium Migration during the Leaching of Cemented Radioactive Waste Sludges

Geosciences, 2019
One of the most challenging components of the UK nuclear legacy is Magnox sludge, arising from the corrosion of Mg alloy-clad irradiated metallic U fuel that has been stored in high pH ponds. The sludges mainly comprise Mg hydroxide and carbonate phases,
Kathleen A. Law, Stephen Parry, Nicholas D. Bryan, Sarah L. Heath, Steven M. Heald, Darrell Knight, Luke O’Brien, Adam J. Fuller, William R. Bower, Gareth T. W. Law, Francis R. Livens   +10 more
doaj   +1 more source

Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures

, 2018
We propose that retinal-based phototrophy arose early in the evolution of life on Earth, profoundly impacting the development of photosynthesis and creating implications for the search for life beyond our planet.
DasSarma, Shiladitya, Schwieterman, Edward W.   +1 more
core   +1 more source

Oxygen Supply in a Small Oxidation Pond

Japan journal of water pollution research, 1990
生活雑排水の処理を目的とした小型酸化池における酸素の収支について, 数理モデルを用いて検討を行った。本数理モデルにおいては, 植物プランクトンの光合成速度に及ぼす光強度の影響, 植物プランクトン自体による光の遮りの影響, 植物プランクトンの沈降, 垂直方向の混合拡散, 水面を通じての大気との酸素の交換, また, 底生微生物による酸素の消費を考慮している。小型実験池における溶存酸素濃度の垂直分布の日周変動を利用して, 数理モデルの妥当性について検討した。最後に, パラメータ感度解析を行うことにより, 酸素供給に最も効果的な水深について考察したが, 水深約1mとした場合に酸素供給が最も効率的になることを明らかとした。
Hiroyuki KAWASIMA, Takuya KAWANISHI, Motoyuki SUZUKI   +2 more
openaire   +2 more sources