نتایج جستجو برای: thiuram sulphides
تعداد نتایج: 606 فیلتر نتایج به سال:
گزینش پذیری هر حسگر شیمیایی به وضوح یکی از مهمترین خصوصیات آن است که با ضریب گزینش پذیری (ka,b) نشان داده می شود. محاسبات تئوری، یک ابزار قدرتمند برای فهم مکانیسم دریافت گزینشی و انتقال یون های فلزی توسط یونوفور می باشد. تحقیق حاضر با هدف پیش بینی قدرت استخراج گزینشی چند نوع یونوفور برای یون های فلزی متفاوت، بررسی چگونگی استفاده از ویژگی های فلز برای پیش بینی برهم کنش گزینشی، انتقال و جداسازی ا...
The effects of age vs. diet, potassium level, tetramethylthiuram disulfide (thiuram), and ionophores in the diet on the development of tibial dyschondroplasia in broilers was investigated. Changing broiler chicks from a diet that induced tibial dyschondroplasia to one that reduced the disease or vice versa caused a change in the incidence in the direction of the last-fed diet; however, in most ...
PURPOSE To analyse the association between occupation (represented by job title) and contact allergy to thiuram vulcanising agents based on data of a clinical registry (IVDK, www.ivdk.org ). METHODS Clinical, demographic and allergy patch test data of all patients tested between 1992 and 2006 with the thiuram mix (1% in petrolatum) as part of the baseline series was analysed (n = 121,051). Po...
Among the various substances known to cause occupational allergic contact dermatitis, additives to rubber, especially thiurams are regarded as the most important class of contact allergens. It has been suggest that in the sensitization phase of contact hypersensitivity hapten application induces strong innate immune mechanisms, causing the release of danger signals as reactive oxygen species (R...
In order to establish the magnetic carriers and assess the reliability of previous paleomagnetic results obtained for Eocene marine marls from the south Pyrenean basin, we carried out a combined paleoand rock-magnetic study of the Pamplona-Arguis Formation, which crops out in the western sector of the southern Pyrenees (N Spain). The unblocking temperatures suggest that the characteristic reman...
Elementary sulphur and some of its inorganic compounds have long been of practical importance for the control of parasitic and saprophytic fungi, but the use of organic compounds of sulphur is of more recent origin. Compounds such as tetramethylthiuram disulphide and certain metallic salts of dithiocarbamic acids are now of commercial importance in this connexion (Tisdale & Flenner, 1942; Rober...
Contact dermatitis in healthcare workers is a world wide problem. We conducted a retrospective observational study of the patch-test results of 1402 healthcare workers and 1402 matched controls with contact dermatitis who were treated at 3 hospitals departments in Denmark between 2007 and 2014. The primary objective was to determine whether healthcare work was associated with contact allergy to...
Tetra-kis(2-methyl-prop-yl)thio-per-oxy-dicarbonic di-amide, or tetra-iso-butyl-thiuram di-sulfide, C18H36N2S4, crystallizes in a general position in the triclinic space group P-1 but shows pseudo-C2 symmetry about the di-sulfide bond. The C-S-S-C torsion angle [-85.81 (2)°] and the dihedral angle between the two NCS2 mean planes [85.91 (5)°] are within the range observed for this compound type...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید