Results 91 to 100 of about 109,876 (305)

Commitment during stenotele differentiation in Hydra is localized near the S/G2 boundary in the terminal cell cycle [PDF]

, 1982
The timing of commitment during stenotele differentiation in Hydra was determined. Regeneration of isolated distal regions of the body column induces stenotele differentiation.
Charles, Toshitaka Fujisawa, N. David, Fujisawa, Toshitaka, David, Charles N.   +4 more
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Efeito da transformação do ninho manual modelo holandês em mecânico na postura de ovos de cama em matrizes de frangos de corte Effect of the transformation of a hand-operated Dutch nest into a mechanical nest on the laying of floor eggs in broiler breeders

Revista Brasileira de Zootecnia, 2010
Este trabalho visou adaptar o ninho manual modelo Holandês, cujo formato é bem aceito por matrizes de frangos de corte, a um modelo que permita fazer a coleta mecânica dos ovos.
Fernando Pilotto, Andréa Machado Leal Ribeiro, Alberto Cargnelutti Filho, Vilson Antonio Klein   +3 more
doaj   +1 more source

On the ecology and evolution of microorganisms associated with fungus-growing termites [PDF]

, 2011
Organisms living in symbiosis fascinate us with their adaptations to live in extreme proximity to, or even inside, a partner that may be from a completely different Class, Phylum or Kingdom.
Visser, A.A.
core  

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Monitorización del emplazamiento de los nidos de alimoche común Neophron percnopterus como herramienta de planificación espacial de las actividades humanas en Bizkaia (País Vasco). [PDF]

Munibe Ciencias Naturales
El alimoche común (Neophron percnopterus) es una de las especies de buitres globalmente amenazadas y con una tendencia poblacional decreciente. En el año 2015 se aprobó el Plan Conjunto de Gestión de las Aves Necrófagas de Interés Comunitario de la ...
Iñigo Zuberogoitia, Aitor Galarza, José Enrique Martínez, Iñaki Castillo, Agurtzane Iraeta, Maialen Azpillaga, Iker Apraiz, Julen Zuberogoitia, Jabi Zabala, Julio Ruiz, Eneko Julen Diaz, Igor Aginako, Cristina Cinos, Fran Martínez, Mikel Yarza, Pablo García Clemente, Sonia Hidalgo, Aitor Uriarte, Mikel Larrinoa   +18 more
doaj   +1 more source

Livestock grazing and trampling of birds’ nests: an experiment using artificial nests [PDF]

, 2013
The purpose of this study is to experimentally determine the differences between four grazing treatments on the trampling of nests. Additionally, we examine to what extent the trampling probability of nests is higher close to a source of fresh water.
Tinbergen, Joost M., Ens, Bruno J.,, Bakker, Jan P.,, Joost M. Tinbergen, Ens, Bruno J., Tinbergen, Joost M.,, Mandema, Freek S.,, Mandema, Freek S., Bruno J. Ens, Jan P. Bakker, Bakker, Jan P., Freek S. Mandema   +11 more
core   +2 more sources

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Ocorrência de Centris (Hemisiella) vittata Lepeletier (Hymenoptera: Apidae: Centridini) no Cerrado s.l. do nordeste do Maranhão, Brasil Occurrence of Centris (Hemisiella) vittata Lepeletier (Hymenoptera: Apidae: Centridini ) in the Cerrado s.l. Bioma of Maranhão, Northeastern Brazil

Acta Amazonica, 2007
Fêmeas de Centris vittata Lepeletier foram observadas visitando flores de Byrsonima sp. e nidificando em troncos de Astronium sp. (Anacardiaceae) em uma área de Mata Mesofítica, em Urbano Santos (3º 12' 28''S; 43º24'12''), Maranhão, Brasil.Females of ...
Marina da Costa Ramos, Márcia Maria Correia Rêgo, Patrícia Maia Corrêa de Albuquerque   +2 more
doaj   +1 more source

SPIDERS' NESTS [PDF]

The Canadian Entomologist
The genus Theridionconstruct beautiful silken nests for the protection of their eggs. I have collected what I take to be the nests of three species in Canada. They are generally found under the bank of decayed forest trees. Another which I found on an old fence at Quebec, although not constructed of silk, its form, in my opinion, is sufficient to class
openaire   +2 more sources