Results 71 to 80 of about 5,773,820 (177)

Condition factor and diet of Chrysichthys nigrodigitatus and Chrysichthys auratus (Siluriformes: Bagridae) from Aiba Reservoir, Iwo, Nigeria

open access: yesRevista de Biología Tropical, 2011
Chrysichthys nigrodigitatus and C. auratus are important, highly valued and threatened freshwater species. To contribute with their ecological knowledge, the condition factor and diet of these two congeneric species were studied between April 2005 and ...
Oluwatosin Ebenezer Atobatele   +1 more
doaj  

The Lens Condition with Two Factors [PDF]

open access: yes
We give a simple, constructive proof that the lens condition implies the factor-price equalization condition, when there are only two factors. Taking stock of the sufficient conditions under which the lens condition implies the FPE condition, we have the
Kwan Koo Yun, Siu-kee Wong
core  

The physiological aspects of traumatic shock [PDF]

open access: yes, 1942
Thesis (M.A.)--Boston UniversityThe condition known as shock has been recognized and described by the medical profession for a great many years.
Akers, Robert Preston
core   +1 more source

Condition R and proper holomorphic maps between equidimensional product domains

open access: yes, 2013
We consider proper holomorphic mappings of equidimensional pseudoconvex domains in complex Euclidean space, where both source and target can be represented as Cartesian products of smoothly bounded domains.
Chakrabarti, Debraj, Verma, Kaushal
core   +1 more source

Length-weight relationship and condition factor of Tilapia (Coptodon zillii) from four water bodies in Kano State, Nigeria

open access: yesThe Proceedings of the Nigerian Academy of Science
Understanding the growth pattern of fish populations is a key in aquaculture production programme. Twenty-four (24) Coptodon zillii sample were collected from each of the four water bodies (Bagwai dam (BG), river Dundurun Gaya (DG), Tiga dam (TG) and ...
Abdullahi M. Usman   +5 more
doaj   +1 more source

Biology and distribution of Danube barbel (Barbus balcanicus) (Osteichthyes: Cyprinidae) at the Northwestern limit of its range

open access: yesThe European Zoological Journal, 2019
Presence of Danube barbel Barbus balcanicus was investigated at the westernmost portion of its distribution area (Italian portion of the Isonzo River Basin).
M. Bertoli   +7 more
doaj   +1 more source

Some morphometric traits of Rita rita from Southern Punjab, Pakistan

open access: yesInternational Journal of Applied and Experimental Biology
In this research work, forty five (45) specimens of Rita rita inhabiting River Chenab, one of the five rivers of the Punjab Province, were evaluated to observe morphometric and proximate composition of the fish specimens.
Saif ur Rehman   +3 more
doaj   +1 more source

Biologia reprodutiva de Micropogonias furnieri (Desmarest, 1823) (Teleostei, Sciaenidae): 1. fator de condição como indicador do período de desova The reproductive biology of Micropogonias furnieri (Desmarest, 1823) (Teleostei, Sciaenidae): 1. condition factor as an indicator of spawning period

open access: yesBrazilian Journal of Oceanography, 1983
A analise temporal da freqüência de estádios de maturação de 102 fêmeas adultas coletadas entre fevereiro de 1979 e janeiro de 1980 na região de Ubatuba, litoral norte do Estado de São Paulo, mostra que M.
Victoria Judith Isaac-Nahum   +1 more
doaj   +1 more source

Comparative Fulton’s Condition and Relative Weight of American Brook Lamprey (Lethenteron appendix) Larvae and Adults in Streams in Southeastern Minnesota, USA

open access: yesFishes
To reproduce successfully, non-parasitic brook lamprey must accumulate all nutrients needed for growth and reproductive development during a multi-year larval stage while feeding on low-quality detritus. We used total length and wet mass data of American
Neal D. Mundahl, Silas Bergen
doaj   +1 more source

Casimir Effect under Quasi-Periodic Boundary Condition Inspired by Nanotubes

open access: yes, 2013
When one studies the Casimir effect, the periodic (anti-periodic) boundary condition is usually taken to mimic a periodic (anti-periodic) structure for a scalar field living in a flat space with a non-Euclidean topology.
Feng, Chao-Jun   +2 more
core   +1 more source

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