Results 51 to 60 of about 166,060,240 (207)

Seasonal and spatial characterization of the Gulf of California phytoplankton photosynthetic parameters

Ciencias Marinas, 1999
Photosynthesis-irradiance and phytoplankton absorption data from waters of the central Gulf of California, as well as data in the literature, were analyzed in order to propose working averages of the physiological parameters of phytoplankton to estimate
JE Valdez-Holguín, S Álvarez-Borrego, CC Trees   +2 more
doaj   +1 more source

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

Advanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang, Xinyuan Ke, Andrew Heath, Richard J. Ball, Jiawei Xie, Jinchen Fan, Guisheng Li, Kevin Paine   +7 more
wiley   +1 more source

Primary productivity in the Gulf of California, calculated from the relationship between superficial irradiance and chlorophyll in the euphotic zone

Ciencias Marinas, 1995
The vertical distribution of chlorophyll a in the Gulf of California during the spring of 1992 showed a subsurface maxima between 10 and 50 m of depth. The average surface chlorophyll concentration was 0.71 mg m–3.
JE Valdez-Holguín, G Gaxiola-Castro, R Cervantes-Duarte   +2 more
doaj   +1 more source

Micromollusk families in 2 contrasting seasons in Bahia de los Angeles, Gulf of California, Mexico

Ciencias Marinas, 2023
Marine mollusks provide important ecosystem services. They create habitats for benthic organisms, filter water, biodeposit organic carbon in the seafloor, and serve as food sources for other organisms. Studies of mollusk diversity require time-consuming
Elena Solana-Arellano, Victoria Díaz-Castañeda, Olga Flores-Uzeta   +2 more
doaj   +1 more source

Early Retinal UCHL1 Dysregulation Coupled With Synaptic Loss Reflects Alzheimer's Disease Severity

Advanced Science, EarlyView.
This study identifies synapse‐enriched deubiquitinase UCHL1 as an early Aβ‐responsive regulator of retinal synaptopathy in Alzheimer's disease. Retinal UCHL1 loss accompanies excitatory synapse degeneration, p75NTR activation, and neuroinflammation, and predicts Braak stage and cognitive decline. Aβ42 fibrils trigger synaptic and UCHL1 depletion before
Altan Rentsendorj, Jean‐Philippe Vit, Alexandre Hutton, Yosef Koronyo, Saba Shahin, Edward Robinson, Ernesto Barron, Anthony Rodriguez, Ousman Jallow, Julia Sheyn, Bhakta Prasad Gaire, Lalita Subedi, Miyah R. Davis, Barathan Gnanabharathi, Alexander V. Ljubimov, Stuart L. Graham, Vivek K. Gupta, Mehdi Mirzaei, Debra Hawes, Katlin Silm, Keith L. Black, Lon S. Schneider, Alfredo A. Sadun, Jesse G. Meyer, Dieu‐Trang Fuchs, Maya Koronyo‐Hamaoui   +25 more
wiley   +1 more source

University of California School of Librarianship, Annual Reports, July 1952-1960 [PDF]

, 1953
This document contains eight annual reports:University Of California School of Librarianship Annual Report 1 July 1952 - 30 June 1953 Berkeley, California October, 1953University Of California School of Librarianship Annual Report 1 July 1953 - 30 June ...
University of California School of Librarianship
core   +1 more source

Seasonal variation in agar yield and quality of Gracilariopsis lemaneiformis (Bory) Dawson, Acleto et Foldvik, from the Gulf Of Califoria, Mexico

Ciencias Marinas, 1999
Seasonal variation in agar from Gracilariopsis lemaneiformis (Bory) Dawson, Acleto et Foldvik from Bahía de las Ánimas was studied; samples were collected between August 1995 and May 1996. Minimum yield (81.6%) occurred in summer and maximum (15.37%) in
F Arellano-Carbajal, I Pacheco-Ruíz, F Correa-Díaz   +2 more
doaj   +1 more source

Feeding habits of the leopard grouper, Mycteroperca rosacea (Actinopterygii: Perciformes: Epinephelidae), in the central Gulf of California, BCS, Mexico [PDF]

Acta Ichthyologica et Piscatoria, 2019
Background. The leopard grouper, Mycteroperca rosacea (Streets, 1877), is endemic to north-western Mexico and has high commercial value. Although facts of its basic biology are known, information on its trophic ecology, in particular, is scarce.
X.G. Moreno-Sánchez, P. Perez-Rojo, M.S. Irigoyen-Arredondo, E. Marin-Enríquez, L.A. Abitia-Cárdenas, O. Escobar-Sanchez   +5 more
doaj   +3 more sources

Phase‐Resolved Dual Control of Phenol Photodissociation at the Air–Water Interface From Structure‐Resolved Statistics

Advanced Science, EarlyView.
Faster phenol photolysis at the air–water interface arises from two cooperative factors: a more favorable initial microenvironment for solvent‐side electron stabilization, which lowers CI access, and a more labile hydrogen‐bond network, which more readily reorganizes to stabilize the dark‐state intermediate.
Qiang Yin, Jialing Shi, Jinping Zhao, Chengjun Li, Yongbo Xie, Benkun Tan, Da Wang, Ziyun Wang, Yu Mao   +8 more
wiley   +1 more source

Golfo de California : Bibliografía de las Ciencias Marinas = Gulf of California : Bibliography of Marine Sciences [PDF]

, 1992
The Gulf of California Bibliography was developed for those interested in marine sciences, with references covering a geographic area from Cabo Corrientes to Cabo San Lucas, northward to the head of the Gulf, at the mouth of the Colorado River. The East
Alvarez-Millán, Danténoc, Schwartzlose, Richard A., Brueggeman, Peter   +2 more
core