Materias dentro de su búsqueda.
Materias dentro de su búsqueda.
Historia
283
Condiciones sociales
60
Indígenas de México
58
Política y gobierno
53
Aspectos sociales
46
Condiciones económicas
46
Antigüedades
42
Emigración e inmigración
37
Vida social y costumbres
37
Historia y crítica
36
Indígenas de América del Norte
34
Civilización
24
Congresos
23
Investigaciones
23
Leyes y legislación
22
Descripciones y viajes
21
Estudio y enseñanza
21
Aspectos económicos
20
Filosofía
19
Poesía mexicana
19
Población
18
Misiones
17
Ciencias sociales
16
Metodología
16
Música
16
Crítica e interpretación
15
Mujeres
15
Novela estadounidense
15
Educación superior
14
Etnología
14
-
11121“…We also used SEER and California Cancer Registry data to evaluate rates of childhood leukemia in other U.S. counties with military aviation facilities. …”
Enlace del recurso
Enlace del recurso
Texto -
11122“…Substantial concentrations of nitric acid were found in two of the California sites as well as many sites in the northeastern portion of the United States. …”
Enlace del recurso
Enlace del recurso
Texto -
11123“…The study conducted in Los Angeles, California (1991-1993), and the two studies conducted in North Carolina (1988-1990 and 1992-1995) altogether included 866 cases and 1,066 controls. …”
Enlace del recurso
Enlace del recurso
Texto -
11124“…A follow-up to a population-based case-control study of pediatric brain tumors in Los Angeles County, California, involving mothers of 224 cases and 218 controls, investigated the risk of household pesticide use from pregnancy to diagnosis. …”
Enlace del recurso
Enlace del recurso
Texto -
11125por Savitz, D A“…Utility workers in southern California were studied and found not to have increased risks of leukemia and brain cancer based on exposures estimated with measurements. …”
Publicado 1995
Enlace del recurso
Enlace del recurso
Texto -
11126“…Using geographic information systems (GIS) and routinely collected data, we explored whether childhood residence near busy roads was associated with asthma in a low-income population in San Diego County, California. We examined the locations of residences of 5,996 children [less than/equal to] 14 years of age who were diagnosed with asthma in 1993 and compared them to a random control series of nonrespiratory diagnoses (n = 2,284). …”
Enlace del recurso
Enlace del recurso
Texto -
11127“…Dose estimates developed by the State of California from measured occupational exposures to 41 pesticides were compared to standard indices of acute toxicity (LD50) and chronic effects (reference dose). …”
Enlace del recurso
Enlace del recurso
Texto -
11128por Logsdon, G S“…A study by the Metropolitan Water District of Southern California showed that when raw water chrysotile counts ranged from 200 X 10(6) fibers/L to 2000 X 10(6) fibers/L, filtered water fiber counts frequently exceeded 1 X 10(6) fibers/L. …”
Publicado 1983
Enlace del recurso
Enlace del recurso
Texto -
11129
-
11130
-
11131
-
11132
-
11133“…Cognitive performance was evaluated using the HIV Dementia Score (HDS) and the California Verbal Learning Test (CVLT). RESULTS: Prior to HAART, thymic volume varied considerably from 2.7 to 29.3 cm(3) (11 ± 7.2 cm(3)). …”
Enlace del recurso
Enlace del recurso
Texto -
11134“…Our study provides the first comparative evaluation of foliar uptake capacity among the dominant plant taxa from the coast redwood ecosystem of California where crown-wetting events by summertime fog frequently occur during an otherwise drought-prone season. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso
Texto -
11135
-
11136
-
11137
-
11138
-
11139
-
11140