排序方式: 共有21条查询结果,搜索用时 11 毫秒
11.
Prenatal diagnosis of congenital atresia of the larynx is difficult but is possible by the findings of increased lung echogenicity and size coexisting with fetal ascites in ultrasonography. Sonographic findings may not always be typical. We report on a case of congenital laryngeal atresia diagnosed prenatally by the findings of fetal hydrops and hyperechogenic lungs. Our case presented with oligohydramnios. We also review syndromes that demonstrate laryngeal anomalies. Copyright © 2003 John Wiley & Sons, Ltd. 相似文献
12.
William L. Gardner Elizabeth P. Karam Lori L. Tribble Claudia C. Cogliser 《组织行为杂志》2019,40(5):554-569
Attributions are causal explanations made by individuals in response to important, novel, and/or unexpected events. Numerous attribution theories have examined how people use information to make attributions and how attributions impact an individual's subsequent emotions and outcomes. However, this research has only recently considered the implications of dyadic‐level attributions (i.e., relational attributions), particularly in the context of leader–follower relationships in organizations. Therefore, the purpose of this theoretical paper is threefold. First, we integrate research on attributional biases into the research on relational attributions. Second, we integrate and extend attribution theory to consider the implications of convergent and divergent internal, external‐person, external‐situational, and relational attributions for leader–member exchange (LMX) quality, relationship work, self‐work, and conflict. Third, we make the implicit ranking of attribution combinations and the resultant levels of relationship work explicit. In doing so, we contribute to attribution theory and research by proposing how attribution combinations produce positive and negative outcomes that are both intrapersonal and interpersonal. Further, we contribute to the LMX literature by explicating how leader–follower attribution combinations influence relationship quality. 相似文献
13.
14.
15.
The effects of grapemarc distillery effluents on the quality of soil organic matter is extremely important to ensure the environmentally-safe
and agronomically efficient use of these materials as organic amendment. In this work, the effects of the application of untreated
(UG) and anaerobically digested grapemarc distillery effluents, either added with (AGM) or without mycorrhiza (AG), on soil
humic acid (HA) were investigated in field plot experiments in comparison to HAs from a control soil and an inorganic fertilized
soil. The humic acid-like fractions (HALs) isolated from UG, AG and soils were characterized for compositional, structural
and functional properties by the use of elemental and functional group analysis, and ultraviolet/visible, Fourier transform
infrared and fluorescence spectroscopies. Results obtained indicated that anaerobic digestion of effluents produced an extended
mineralization with loss of organic C and stabilization of residual organic matter by increasing the content of HALs in the
effluent. With respect to control soil HA, HALs isolated from UG and AG were characterized by smaller acidic functional group
contents, a prevalent aliphatic character and smaller aromatic polycondensation and humification degrees. The chemical and
spectroscopic characteristics of native soil HA were not substantially modified by application of UG, AG and AGM to soil,
which suggests the occurred incorporation of the effluent HAL into native soil HA. In conclusion, these results showed the
possibility of a beneficial and safe recycling of grapemarc distillery effluents as soil amendment. 相似文献
16.
Oxidative injury and antioxidant genes regulation in cadmium-exposed radicles of six contrasted Medicago truncatula genotypes 总被引:1,自引:0,他引:1
17.
Monitoring results for organochlorine pesticides in soil and water from selected obsolete pesticide stores in Pakistan 总被引:1,自引:0,他引:1
Karam Ahad Ashiq Mohammad Hizbullah Khan Iftikhar Ahmad Yousaf Hayat 《Environmental monitoring and assessment》2010,162(1-4):191-199
Seasonal changes in micromineral and macromineral concentrations in tissues of shrimp (Parapenaus longirostris) from Marmara Sea were measured for a 1-year period by using inductively coupled plasma mass spectrometer. The contents of investigated minerals in shrimp were found to be in the range of 0.374–0.716 mg/kg for Hg, 0.526–1.286 mg/kg for Se, 0.007–0.098 mg/kg for Cd, 0.197–0.230 mg/kg for Pb, 5.194–7.600 mg/kg for Cu, 11.090–17.707 mg/kg for Zn, 22.128–38.850 mg/kg for Al, 61.769–88.437 mg/kg for Fe, 0.262–0.368 mg/kg for As, 0.081–0.249 mg/kg for Co, 0.850–1.459 mg/kg for Mn, 0.316–0.507 mg/kg for Ni, 0.032–0.107 mg/kg for Sn, 1.262–1.502 mg/kg for Cr, 2,813.770–3,317.819 mg/kg for Na, 3,702.230–4,479.648 mg/kg for K, 495.782–650.280 mg/kg for Mg, 790.407–1,016.112 mg/kg for Ca, 2,685.873–3,657.658 mg/kg for P, and 0.454–0.942 mg/kg for I. The levels of Hg found in autumn were higher than maximum levels proposed by the European legislation. 相似文献
18.
Bashir Arshid Malik Lateef Ahmad Ahad Sozia Manzoor Taniya Bhat Mudasir Ahmad Dar G. N. Pandith Altaf Hussain 《Environmental Chemistry Letters》2019,17(2):729-754
Environmental Chemistry Letters - Pollution due to heavy metals is currently a serious problems affecting water bodies. The removal of heavy metals is of great concern due to their toxicity at... 相似文献
19.
Ramezanipour Penchah Hamid Ghaemi Ahad Jafari Fatemeh 《Environmental science and pollution research international》2022,29(4):5134-5143
Environmental Science and Pollution Research - In this study, activated carbon and piperazine-modified activated carbon adsorbents were prepared and used for CO2 adsorption. The effect of various... 相似文献
20.
Bansal SK Singh KV 《Journal of environmental biology / Academy of Environmental Biology, India》2004,25(4):485-488
Evaluation of the potency of four organophosphate (OP) (Malathion, Fenthion, Fenitrothion and Temephos) and two synthetic pyrethroid (SP) compounds (cypermethrin and deltamethrin) was carried out against larvae of Anopheles stephensi, the major malaria vector in district Bikaner (Rajasthan). Different concentrations supplied by WHO were used for determining the percent mortalities. LC50 values as calculated by probit analysis were 1.2740, 0.0600, 0.0405, 0.0046, 0.0019 and 0.0016 mg/l respectively for the above six insecticides. Both SP compounds were found more toxic followed by temephos among the OP compounds. Malathion was found the least toxic while fenthion and fenitrothion were in between these two extremes. 相似文献