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181.
Stephan Overmeyer Monica Wäber Jürgen Bausch-Weiß Ludwig Peichl Heide Schnabl 《Environmental Sciences Europe》1994,6(1):5-8
The ecotoxicological effect of rain water on the light-dependent, photosynthetical oxygen production of suspended protoplasts from the bean speciesVicia faba L. was used for the characterization of airborne immissions. The protoplast-biotest — with rain water samples taken in an agricultural area from March to July — showed a clear inhibition of the photosynthetical oxygen production. Simultaneously, chemical analyses on some herbicides were carried out. The concentrations determined, however, did not sufficiently explain the measured inhibition of oxygen production; so, the toxicity yielded was assumed to result from not-analyzed compounds as well as synergistic and additive effects of the rain water constituents. 相似文献
182.
Tina M Petersen Monica P Suarez Hanadi S Rifai Paul Jensen Yu-Chun Su Ron Stein 《Water environment research》2006,78(12):2340-2355
This paper examines bacterial levels and their causes in two Houston bayous (Texas). Buffalo and Whiteoak bayous are two of the most contaminated water bodies in Texas for indicator bacteria, based on the frequency and magnitude of contact recreation water quality exceedances. Examination of historical data indicates frequent exceedances, although some improvement has been made since the 1970s. Statistical analyses showed some correlation between in-stream fecal coliform concentrations and rainfall and with land use. Differences in fecal coliform concentrations were found between high- and low-flow conditions in Whiteoak Bayou, while reservoir releases confounded this relationship in Buffalo Bayou. Wastewater treatment plant effluent was found to make up two-thirds to three-fourths of the median flow in both bayous. Effluent sampling was conducted at 72 of the approximately 140 wastewater treatment plants (WWTPs) in the watersheds, providing evidence that WWTP effluent could act to maintain low-flow concentrations of fecal coliform in the bayous. 相似文献
183.
Marianne Frankenhaeuser Ulf Lundberg Mats Fredrikson Bo Melin Martti Tuomisto Anna-Lisa Myrsten Monica Hedman Bodil Bergman-Losman Leif Wallin 《组织行为杂志》1989,10(4):321-346
Sixty healthy non-smoking white collar employees, aged 30–50, from a large corporation in Sweden participated in the study. There were four groups: 15 male and 15 female middle managers, 15 male and 15 female clerical workers. Each participant was examined individually with regard to cardiovascular and neuroendocrine functions and self-reports for 12 consecutive hours under each of two conditions: (1) a normal day at work (9 a.m.–5 p.m.) and after work (6–9 p.m.), and (2) for the same time period during work-free conditions at home. In addition, everyone was given a videotaped type A-interview and a general health check-up including blood-lipid determination. Attitudes towards work, total workload (including responsibilities outside the paid work) and sex role identity were examined by questionnaires. As expected, all groups showed a moderate increase in cardiovascular and neuroendocrine activity during the day at work. After work, however, interesting group differences emerged, suggesting slower unwinding in female managers. Differences related to occupational level and/ or sex were found for autonomy and social support at work, competitiveness, sex role and reported conflict between demands from paid work and other responsibilities. The stress profile of the female managers was considered in terms of possible long-term health risks. 相似文献
184.
Alfredo Nazzaro Matteo Della Monica Fortunato Lonardo Arturo Di Blasi Maria Baffico Maurizia Baldi Giovanni Nazzaro Giuseppe De Placido Gioacchino Scarano 《黑龙江环境通报》2004,24(11):918-922
Pfeiffer syndrome is characterized by bilateral coronal craniosynostosis, midface hypoplasia, beaked nasal tip, broad and medially deviated thumbs and great toes. Originally, it was described in eight persons from three generations in a pedigree consistent with an autosomal dominant transmission. Since then, several reports have documented its high clinical and genetic heterogeneity. The condition is usually detected in the newborn period or later, and very few prenatal ultrasound diagnoses have been reported. We present a case of Pfeiffer syndrome prenatally diagnosed at 20 weeks' gestation, in which the sonographic features of craniosynostosis, hypertelorism associated with an extreme proptosis, and broad thumb led to the diagnosis, confirmed after termination of pregnancy by dysmorphological, pathological and radiological evaluation. DNA analysis of the fibroblast growth factor receptor 2 (FGFR2) showed a missense mutation consisting in a transversion G → C at nucleotide 870. This led to a Trp290Cys amino acidic substitution. We discuss the relevant findings of our and previously published cases. Our report demonstrates that a careful sonographic examination can lead to an early prenatal diagnosis of Pfeiffer syndrome also in cases without cloverleaf skull. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
185.
186.
Matteo Della Monica Alfredo Nazzaro Fortunato Lonardo Gerardo Ferrara Arturo Di Blasi Gioacchino Scarano 《黑龙江环境通报》2005,25(5):394-397
A case of cloacal exstrophy (CE) was detected by ultrasound as early as 22 weeks of gestation in association with myelocystocele complex, an unusual form of occult spinal dysraphism often associated with such a disease. The ultrasonographic diagnosis was made through the detection of a wavy cord-like segment of soft tissue protruding from the anterior abdominal wall, just below the umbilical cord insertion, strongly resembling the trunk of an elephant. Our article enforces the suggestion that the ultrasound elephant trunk–like image should be added to the existing major criteria for making prenatal diagnosis of CE. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献
187.
This paper investigates the explanatory power of development, prosperity and regulatory capability as proximate causes of
non-indigenous species (NIS) occurrence in different countries, doing this by statistically analysing a global cross-sectional
data set. Since the quantification of development is subject to much discussion, two different indicators are tested: gross
domestic product (GDP) per capita and the United Nations human development index (HDI). A corruption index is used as an indicator
of regulatory capacity. In addition, variables capturing country openness, which facilitates NIS introduction, and habitat
conditions, which determine NIS establishment, are included as explanatory variables. The GDP indicator together with the
corruption index fits the NIS data best, where the number of NIS is higher in countries with larger incomes. However, countries
with relatively high income but low institutional capacity show a larger number of NIS than countries with a similar level
of income but with higher institutional capacity. The results also point to the significant contributions of openness and
habitat fragmentation to NIS occurrences in the countries. 相似文献
188.
Marivic G. Pajaro Monica E. Mulrennan Amanda C. J. Vincent 《Environment, Development and Sustainability》2010,12(6):945-965
Policy development related to marine protected areas (MPAs) occurs at three levels: international, national, and local. Recent
developments with MPAs highlight their close links to broader national-level park and protected area policies, which in turn
take their lead from initiatives and recommendations initiated, and increasingly dictated, by international organizations.
Local-level inputs to MPA policies have tended to be limited to the immediate local area context despite the vital importance
of community-level support and knowledge in meeting broader regional goals of marine conservation tied to networked MPAs.
In this paper, we highlight the mechanisms to facilitate cooperation and communication among international, national, and
local levels of policy and practice needed to address this deficit. These include the creation of a social network of institutions
that both internationalizes and localizes MPA policy development, facilitating a more meaningful engagement of local people
through their legitimate participation in national and international MPA gatherings. In addition, mechanisms to formalize
partnerships, feedback information, resolve conflicts, and report accountabilities are needed. The success of the latter will
depend on the level of recognition and support given to community-level institutions as opposed to the suite of technical
training and short-term project-based interventions that have characterized local support over recent decades. 相似文献
189.
Ferraris M Salvo M Ventrella A Buzzi L Veglia M 《Waste management (New York, N.Y.)》2009,29(3):1041-1047
Bottom ashes from a north Italian municipal solid waste incinerator (MSWI) were vitrified at 1450 degrees C without adding any vitrifying agent, then ground and sieved to different granulometry (ranging from 50 microm to 20mm), and used as filler, sand, or aggregate for concrete. Samples were characterized via slump tests (UNI 9418), alkali-silica reactivity (UNI 8520/22 and ASTM C 298), and compression strength tests (UNI 6132, 6132/72, 6686/72), and compared to reference samples obtained without vitrified bottom ashes (VBA). Our results show that vitrified bottom ashes are unsuitable as a sand substitute; however, concrete containing up to 20 wt.% of VBA filler used as a substitute for cement and up to 75 vol.% of VBA as a substitute for natural aggregate retains the same mechanical properties as reference samples. Alkali-silica or other detrimental reactions were not observed in VBA-containing concrete samples after a period of two years. The results of this work demonstrate that vitrified bottom ashes from MSWI can be used instead of natural aggregates in mortar and concrete production. 相似文献
190.
The solid waste accumulation patterns on Tamandaré beach, Pernambuco State (Brazil), was assessed from February 2001 to July 2002. This beach is easily accessible, frequently used, and there is a public cleaning service. The beach is under the influence of three small coastal drainage basins. The study visually divided the beach into 15 segments according to the level of solid waste contamination into absent (A), trace (B), unacceptable (C) and objectionable (D). The lowest levels of contamination were found at the middle part of the study area, the most vulnerable in respect to coastal erosion presenting numerous interventions on the beach, absence of native vegetation and lesser width. The highest levels of contamination were at the northern and southern ends of the area, where there are no developments, the beach morphology favours deposition of sediments, there is native vegetation and the beach is wider. The D level did not occur within the area. 相似文献