Results 41 to 50 of about 881 (187)

Computer‐assisted automated synthesis. III. Synthesis of substituted N‐(carboxyalkyl) amino‐acid tert‐butyl ester derivatives

Journal of Analytical Methods in Chemistry, Volume 13, Issue 5, Page 187-197, 1991., 1991
A versatile automated synthesis apparatus, equipped with a chemical artificial intelligence, was developed to prepare and isolate a wide variety of compounds. The apparatus was to the synthesis of substituted N‐(carboxyalkyl)amino‐acids. The apparatus [1,2] is composed of units for performing various tasks,for example reagent supply, reaction ...
Nobuyoshi Hayashi, Tohru Sugawara, Shinji Kato   +2 more
wiley   +1 more source

Conched out: Total reconstructed fisheries catches for the Turks and Caicos Islands uncover unsustainable resource usage

Frontiers in Marine Science, 2016
The Turks and Caicos Islands’ total marine fisheries catches were estimated for 1950-2012 using a catch reconstruction approach, estimating all removals, including reported catch destined for export, and unreported domestic artisanal and subsistence ...
Aylin eUlman, Aylin eUlman, Lily eBurke, Edward eHind, Robin eRamdeen, Dirk eZeller   +5 more
doaj   +1 more source

Multi‐Physical Lattice Metamaterials Enabled by Additive Manufacturing: Design Principles, Interaction Mechanisms, and Multifunctional Applications

Advanced Science, Volume 12, Issue 8, February 24, 2025.
This article critically reviews the structure–mechanism–property relationships and interaction mechanisms of lattice metamaterials enabled by additive manufacturing in a range of physical (mechanical, acoustic, electromagnetic/optical, and thermal) fields.
Winston Wai Shing Ma, Hang Yang, Yijing Zhao, Xinwei Li, Junhao Ding, Shuo Qu, Quyang Liu, Zongxin Hu, Rui Li, Quanqing Tao, Haoming Mo, Wei Zhai, Xu Song   +12 more
wiley   +1 more source

Molecular phylogenetics of the superfamily Stromboidea (Caenogastropoda): New insights from increased taxon sampling

Zoologica Scripta, Volume 53, Issue 6, Page 818-838, November 2024.
Abstract The superfamily Stromboidea is a clade of morphologically distinctive gastropods which include the iconic Strombidae, or ‘true conchs’. In this study, we present the most taxonomically extensive phylogeny of the superfamily to date, using fossil calibrations to produce a chronogram and extant geographical distributions to reconstruct ancestral
Alison R. Irwin, Philippe Bouchet, J. Alistair Crame, Elizabeth M. Harper, Gijs C. Kronenberg, Ellen E. Strong, Suzanne T. Williams   +6 more
wiley   +1 more source

Poliquetos asociados a Strombus gigas [PDF]

, 2012
El caracol rosado Strombus gigas tiene un elevado valor económico y ecológico en Quintana Roo e interactúa en mayor o menor medida con otros organismos marinos.
MORENTIN OCEJO, SERGIO
core  

Calcite Twinning in Mollusk Shells and Carrara Marble

Advanced Functional Materials, Volume 34, Issue 35, August 28, 2024.
Deformation twinning occurs in Carrara marble and appears in polarized light microscopy as parallel lines in calcite crystals (bottom left). Twins are known to harden and toughen calcite crystals. Twins are never observed within mollusk shell calcite prisms (top left).
Cristina Castillo Alvarez, John L. Grimsich, Connor A. Schmidt, Harrison Lisabeth, Anne Voigtländer, Pupa U. P. A. Gilbert   +5 more
wiley   +1 more source

On the productivity and technical efficiency of the Puerto Rican queen conch Aliger gigas fishery

Marine and Coastal Fisheries, Volume 16, Issue 3, June 2024.
Abstract Objective This study examines the productivity and technical efficiency (TE) of diving operations that target queen conches Aliger gigas in the Commonwealth of Puerto Rico, the largest producer of queen conches in the United States. Currently, there is a proposal to list queen conch as threatened under the Endangered Species Act (ESA ...
Juan J. Agar, Daniel Solís
wiley   +1 more source

The queen conch (Strombus gigas Linnaeus, 1758) in the colombian caribbean: Monographic revision

, 2007
Se presenta una síntesis del estado de conocimiento de la biología, la pesquería y los ensayos de cultivo ex situ en el Caribe colombiano del molusco gastrópodo Strombus gigas Linnæus, 1758 (caracol de pala), y se resalta el aprovechamiento que se hace ...
Ospina Arango, José Fernando, Álvarez León, Ricardo, Gutiérrez Bonilla, Francisco de Paula, Chiquillo Espítia, Ernesto   +3 more
core   +1 more source

VARIACIÓN GENÉTICA TEMPORAL DEL CARACOL PALA (STROMBUS GIGAS) EVIDENCIADA POR MICROSATÉLITES EN EL ATOLÓN BOLíVAR, ARCHIPIÉLAGO DE SAN ANDRÉS, PROVIDENCIA Y SANTA CATALINA [PDF]

, 2010
El atolón Bolívar es uno de los sitios del Archipiélago de San Andrés, Providencia y Santa Catalina que presenta una baja recuperación en la densidad poblacional del caracol pala Strombus gigas, por lo tanto el monitoreo de la diversidad genética de la ...
Márquez, Edna, Castro González, Erik R., Rangel Medrano, José David, Márquez Fernández, Edna Judith, Landínez García, R. M., Rangel Medrano, J. D., Landínez García, Ricardo Marcel   +6 more
core  

Abundancia y distribución de larvas de Strombus gigas (Mesogastropoda: Strombidae) durante el período reproductivo de la especie en el Caribe Mexicano

Revista de Biología Tropical, 2012
El caracol rosa (Strombus gigas, Linnaeus, 1758) es una especie de importancia económica en el Mar Caribe, por lo cual, en la década de 1980 representó la segunda pesquería después de la langosta espinosa, razón por la que actualmente se encuentra en ...
José Francisco Chávez Villegas, Martha Enríquez Díaz, Jorge Arturo Cid Becerra, Dalila Aldana Aranda   +3 more
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