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71.
Jouriles Ernest N.; Norwood William D.; McDonald Renee; Vincent John P.; Mahoney Annette 《Canadian Metallurgical Quarterly》1996,10(2):223
Two studies examined whether physical marital violence and other forms of marital aggression (e.g., threats, throwing objects) correlate with children's behavior problems in families marked by recent spousal violence. Study 1 included 55 families seeking marital therapy. Study 2 included 199 families at battered women's shelters. In the marital therapy sample, both physical marital violence and other forms of marital aggression correlated positively with children's externalizing problems. In the women's shelter sample, physical violence and other forms of marital aggression correlated positively with children's externalizing and internalizing problems. After accounting for the frequency of physical marital violence, forms of marital aggression other than physical violence still related to children's externalizing problems in the marital therapy sample and to children's internalizing problems in the women's shelter sample. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
72.
73.
Friedrich Kiermeier Annette Ganz und Gerhard Wildbrett 《Zeitschrift für Lebensmitteluntersuchung und -Forschung A》1964,124(4):252-257
Zusammenfassung Eine Umfrage im Einzugsgebiet der Staatlichen Molkerei Weihenstephan ergab, daß etwa 40% der erfaßten Milcherzeugungsbetriebe insecticide Chlorkohlenwasserstoffe in irgendeiner Form anwandten. Trotzdem enthielt die Anlieferungsmilch aus 210 Betrieben, die nach ihren eigenen Angaben insecticide Chlorkohlenwasserstoffe auf Futterflächen oder im Stall einsetzten, in keinem Fall Reste insecticider Chlorkohlenwasserstoffe in einer Menge, die mit dem Fliegentest am Milchextrakt nachgewiesen werden konnte. Die Empfindlichkeit des Nachweises schwankte je nach Art des Insecticids zwischen 0,2–0,6 mg/kg. Trotz des günstigen Befundes mu das Problem der Insecticidrückstände in Milch weiterhin aufmerksam verfolgt werden.Auszug aus der Dissertation vonAnnette Ganz: Über Bestimmung und Vorkommen von Rückständen insecticider Chlorkohlenwasserstoffe in Milch. Techn. Hochschule München-Weihenstephan 1963. 相似文献
74.
Hansson J Båth M Håkansson M Grundin H Bjurklint E Orvestad P Kjellström A Boström H Jönsson M Jonsson K Månsson LG 《Radiation protection dosimetry》2005,114(1-3):278-285
The aim of this study was to find the optimum tube voltage for neonatal chest imaging in computed radiography. The study was designed to take full advantage of the benefits of digital imaging, for example, by comparing the tube voltages at constant effective dose. A phantom study using a living rabbit was first conducted. Images were collected at tube voltages ranging from 40 to 90 kV(p). The reproduction of four structures (central vessels, peripheral vessels, carina and thoracic vertebrae) was rated by 10 radiologists. The reproduction of both central and peripheral vessels was relatively independent of tube voltage. The carina was better reproduced at higher tube voltages whereas the opposite was true for the thoracic vertebrae. Based on the higher importance of the reproduction of the carina it was decided that 90 kV(p) was the optimal tube voltage. To validate the result from the phantom study, a follow-up study was conducted in which images of neonates collected at the tube voltage regularly used at Sahlgrenska University Hospital (70 kV(p)) were compared with images collected at the tube voltage proposed by the phantom study. The follow-up study confirmed the results from the phantom study that the reproduction of the carina was better at 90 than at 70 kV(p). In conclusion, for neonatal chest imaging-given the same effective dose-90 kVp gives better reproduction of important structures than the regularly used 70 kV(p). 相似文献
75.
A system was developed for measuring the noncomplexed or free fraction of a hormone in serum based on the combined use of ultrafast immunoextraction with a chromatographic displacement immunoassay. This approach was tested using L-thyroxine as a model analyte. Items considered in the development of this technique included the choice of immunoassay format and the selection of conditions for removal of thyroxine's free fraction from samples without significant interference from its protein-bound fraction. The final method had an effective extraction time of 90 ms and allowed the amount of free thyroxine to be determined within 30 s after sample injection. The limit of detection was 6 pM (S/N = 3) for a 100-microL sample, and the linear response extended up to at least 100 pM. This technique gave good correlation versus reference methods when used for the determination of free thyroxine in serum samples. Advantages of this method included its speed and its ability to analyze a sample with no pretreatment other than standard filtration. The same approach could be adapted for other hormones or drugs by using appropriate antibodies and labeled analogues for such agents. 相似文献
76.
Claus RA Wüstholz A Müller S Bockmeyer CL Riedel NH Kinscherf R Deigner HP 《Chembiochem : a European journal of chemical biology》2005,6(4):726-737
The enantioselective synthesis of an analogue of scyphostatin, a potent inhibitor of the neutral sphingomyelinase, is described. The synthesis starts with cyclohexanone and a protected D-serine derivative. The key step is an asymmetric hydroxylation to access a hydroxycyclohexanone, which is transformed into a substituted hydroxycyclohexenone. This is converted into the scyphostatin analogue 14, a chemically and metabolically stabilised compound lacking the epoxy function of the natural congener and carrying a palmitic acid group instead of the native trienoyl residue. An evaluation of the biological activity of 14 revealed neutral sphingomyelinase inhibition in several in vivo test systems (monocytes, macrophages, hepatocytes) monitoring antiapoptotic effects and the inversion of phorbolester-induced translocation of green fluorescent protein labelled kinase (protein kinase C-alpha). 相似文献
77.
Microbiological investigations for sanitary assessment of wastewater treated in constructed wetlands 总被引:3,自引:0,他引:3
Microbiological investigations into the occurrence and fate of pathogens in wastewater were carried out in a multi-annual measurement programme, using samples from three artificial wetlands equipped with pre-treatment systems (multi-chamber septic tanks, lagoons) and predominantly treating domestic wastewater. In this study, the concentrations of indicator organisms and pathogenic or potentially pathogenic microorganisms were determined in the various components or stages of the systems. The evaluation of data from some 3.600 microbiological analyses and a comparison with older data from a plant which has already been operation for 18 y made it possible for the first time ever to include operational factors in the assessment. Average removal of all major indicator organisms and pathogens is 1.5-2.5 log units for one-stage systems and increases to 3-5 log units for multi-stage systems. Significant differences between horizontal and vertical filters were not found. If no clogging problems arise during their operation, multi-stage systems can meet the requirements of the EU bathing water and irrigation water directives. Influent concentration, wastewater temperature, and hydraulic loading rate were found to be major factors of influence. The performance of constructed wetlands in removing microorganisms is clearly superior to that of conventional biological activated sludge systems. 相似文献
78.
347 male and 310 female licensed PhD psychologists responded to a questionnaire on erotic and nonerotic contact with patients. The 21 Ss who admitted having intercourse with patients advocated and used nonerotic contact with opposite-sex patients more often than other Ss, but they did not differ from other Ss on most demographic variables. On the other hand, the 30 who admitted engaging in nonintercourse erotic contact did not differ from other Ss in their use of nonerotic touching. But these Ss were older and more experienced than the rest of the sample. The differential application of nonerotic hugging, kissing, and touching to opposite-sex patients but not to same-sex patients is viewed as a sex-biased therapy practice at high risk for leading to sexual intercourse with patients. (10 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
79.
Experiments showing that food intake can be dramatically increased (hyperphagia) or even eliminated (aphagia) as a result of brain lesions or of brain stimulation are described. The most widely accepted explanation of how the brain controls feeding behavior, Anand and Brobeck's dual-center theory of hypothalamic regulation, does not account satisfac-factorily for all the data, but it does account for a great deal. Experiments are reviewed in which food intake was altered by lesions or by stimulation outside of the hypothalamus, and it is suggested that the hypothalamus is part of a larger "feeding system" that also includes parts of the thalamus, temporal lobe, frontal lobe, and midbrain. (104 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
80.