Results 161 to 170 of about 491,638 (234)

Métodos de ensayo de la resistencia al flujo de materiales absorbentes acústicos

open access: yes, 2013
Un parámetro principal que rige el comportamiento acústico de los materiales porosos para la absorción acústica es la resistencia al flujo. La ISO 9053 especifica dos métodos diferentes de medida de la resistencia al flujo, el método con flujo de aire directo (método A) y el método de flujo con aire alterno (método B).
openaire   +2 more sources

[Acute acalculous cholecystitis due to Entamoeba histolyca in an infant]. [PDF]

open access: yesAten Primaria
Ortiz González L   +2 more
europepmc   +1 more source

Reproductive health: Intersections between technology and reproduction. [PDF]

open access: yesSalud Colect
Olmos Álvarez AL   +3 more
europepmc   +1 more source

[Brief history of laboratory-based epidemiological surveillance in the Mexican Institute for Social Security]. [PDF]

open access: yesRev Med Inst Mex Seguro Soc
Santacruz-Tinoco CE   +5 more
europepmc   +1 more source

Resistance to cephalosporins and quinolones in Escherichia coli isolated from irrigation water from the Rímac river in east Lima, Peru. [PDF]

open access: yesRev Peru Med Exp Salud Publica
Huamán Iturrizaga M   +6 more
europepmc   +1 more source

Epidemiological characteristics of pediatric patients with invasive candidiasis in an intensive care unit in southwestern Colombia [PDF]

open access: yesBiomedica
Pérez-Camacho PM   +9 more
europepmc   +1 more source

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