Results 21 to 30 of about 6,359 (290)

Big bang of the brane universe [PDF]

, 2001
Big bang of the Friedmann-Robertson-Walker (FRW)-brane universe is studied. In contrast to the spacelike initial singularity of the usual FRW universe, the initial singularity of the FRW-brane universe is point-like from the viewpoint of causality ...
A. Lukas, A. Lukas, A. Lukas, C. Csáki, D. Ida, D. Lynden-Bell, D.J.H. Chung, E.J. Squires, G.W. Gibbons, H. Ishihara, Hideki Ishihara, J. Garriga, J. Rosen, J.M. Cline, L. Randall, M. Gogberashvili, M. Gogberashvili, M. Visser, P. Binétruy, P. Binétruy, P. Horava, T. Shiromizu, V.A. Rubakov, W. Israel   +23 more
core   +3 more sources

First Morphological and Molecular Characterization of Paratylenchus vandenbrandei (Rhabditida: Tylenchulidae) in Iran

Journal of Nematology, 2023
Paratylenchus vandenbrandei, has been recovered from the rhizospheric soil of Euphrates poplar (Populus euphratica) in the Karkheh protected area of Khuzestan province, southwestern Iran. The species was identified as P.
Abdolkhani Abbas, Azimi Sedighe
doaj   +1 more source

RIGHT CONOID HYPERSURFACES IN FOUR-SPACE

Facta Universitatis, Series: Mathematics and Informatics, 2023
The right conoid hypersurfaces in the four-dimensional Euclidean space $\mathbb{E}^{4}$ are introduced. The matrices corresponding to the fundamental form, Gauss map, and shape operator of these hypersurfaces are calculated. By utilizing the Cayley--Hamilton theorem, the curvatures of these specific hypersurfaces are determined.
Guler, Erhan, Yıldız, Mustafa
openaire   +3 more sources

STUDENTS' APPROACHES ON WARPED SURFACE

Journal of Industrial Design and Engineering Graphics, 2019
The geometric challenges in the architectural design of warped surface come mainly from the physical materialization. This paper presents structural forms based on warped surface and shows the types of structures made during the 20th and 21st century ...
Ana - Maria Graur, Carmen Marza, Georgiana Corsiuc   +2 more
doaj   +4 more sources

A doublecortin-domain protein of Toxoplasma and its orthologues bind to and modify the structure and organization of tubulin polymers

BMC Molecular and Cell Biology, 2020
Background TgDCX is a doublecortin-domain protein associated with the conoid fibers, a set of strongly curved non-tubular tubulin-polymers in Toxoplasma. TgDCX deletion impairs conoid structure and parasite invasion.
Jacqueline M. Leung, Eiji Nagayasu, Yu-Chen Hwang, Jun Liu, Phillip G. Pierce, Isabelle Q. Phan, Robin A. Prentice, John M. Murray, Ke Hu   +8 more
doaj   +1 more source

Multigene Sequence-Based and Phenotypic Characterization Reveals the Occurrence of a Novel Entomopathogenic Nematode Species, Steinernema anantnagense n. sp.

Journal of Nematology, 2023
Three entomopathogenic nematode populations were isolated from agricultural fields in the Anantnag district of Jammu and Kashmir (India). Sequences of multiple gene regions and phenotypic features show that they are conspecific and represent a novel ...
Bhat Aashaq Hussain, Machado Ricardo A. R., Abolafia Joaquín, Askary Tarique Hassan, Půža Vladimír, Ruiz-Cuenca Alba Nazaret, Rana Aasha, Sayed Samy, Al-Shuraym Laila A.   +8 more
doaj   +1 more source

Cellular electron tomography of the apical complex in the apicomplexan parasite Eimeria tenella shows a highly organised gateway for regulated secretion.

PLoS Pathogens, 2022
The apical complex of apicomplexan parasites is essential for host cell invasion and intracellular survival and as the site of regulated exocytosis from specialised secretory organelles called rhoptries and micronemes.
Alana Burrell, Virginia Marugan-Hernandez, Richard Wheeler, Flavia Moreira-Leite, David J P Ferguson, Fiona M Tomley, Sue Vaughan   +6 more
doaj   +1 more source

The Problem of Lighting in Underground Domes, Vaults, and Tunnel-Like Structures of Antiquity; An Application to the Sustainability of Prominent Asian Heritage (India, Korea, China) [PDF]

, 2019
Lighting in heritage is complex because of the forms intervening in it. The historical evolution of cultures has not been analytical and therefore, the shapes involved di er greatly from the cuboids typically found in 21st century architecture.
Cabeza Laínez, José María, Rodríguez-Cunill, Inmaculada, Salguero Andújar, Francisco J.   +2 more
core   +2 more sources

Characterization of Iberian species of the genus Pungentus Thorne & Swanger, 1936 (Nematoda, Dorylaimida, Nordiidae) [PDF]

, 2013
Several populations of four known species of the genus Pungentus (P. clavatus, P. engadinensis, P. marietani and P. silvestris), collected in the wild and in cultivated soils from the Iberian Peninsula, are studied.
Abolafia, Joaquin, Ciobanu, Marcel, Pena-Santiago, Reyes   +2 more
core   +3 more sources

Toxoplasma gondii Syntaxin 6 is required for vesicular transport between endosomal-like compartments and the Golgi Complex [PDF]

, 2013
Apicomplexans are obligate intracellular parasites that invade the host cell in an active process that relies on unique secretory organelles (micronemes, rhoptries and dense granules) localized at the apical tip of these highly polarized eukaryotes ...
Clucas, Caroline, Ferguson, David J., Jackson, Allison J., Mamczur, Nicola J., Meissner, Markus   +4 more
core   +1 more source