Comparison the performance properties of conventional and polyester core yarns produced using different raw materials

WOS: 000453906100002Purpose of this study is comparison the performance properties of conventional and polyester core yarns produced using different raw material. In this purpose, five different polyester core yarns were produced using five different raw materials (cotton, viscose, modal, bamboo, polyester). In addition to these yarns, five different conventional yarns were produced with the same production parameters for the comparison. These samples were investigated for hairiness, tensile strength and evenness. Core yarn and conventional yarn test results were compared and discussed. According to the test results, the hairiness values of core yarns obtained from viscose, modal and polyester were lower than that of conventional yarns. No significant difference was found between yarn evenness of core yarns and conventional yarns. Also, usage of polyester as a core in core yarns increased tensile strength except modal and polyester yarns

THE PROPERTIES OF STIFFNESS AND ABSORBENCY IN KNIT TOWEL FABRICS

WOS: 000456083300003This paper examines the effects of fabric structural parameters such as pile yarn count (Ne 30, Ne 26 and Ne 24), ground yarn count (90 Td and 70 Td), and pile loop height (2.2 mm, 2.5 mm and 2.8 mm) on the properties of stiffness and absorbency in the pile loop and the cut-pile loop knit fabrics. For this aim, thirty samples were produced and then the absorbency and softness values of these samples were tested with standard test methods. Consequently, it was seen that sinker height and pile cut process have been effective on hydrophilicity and softness

Relation of hepatitis B core antigen expression with histological activity, serum HBeAg, and HBV DNA levels

Background: Hepatitis B virus (HBV) is a potentially life-threatening liver infection which may progress to liver failure and cirrhosis. Intrahepatic expression patterns of viral antigens detected by immunohistochemistry may have prognostic implications in disease process. Aim: In this study, we aimed to investigate the relationship between the HBV core antigen (HBcAg) expression and histological activity index (HAI), fibrosis, serum hepatitis B e-antigen (HBeAg) status and HBV DNA levels in patients with chronic HBV infection. Materials and Methods: A total of 114 liver biopsies from patients with chronic HBV infection were included in the study. Immunohistochemical expression of HBcAg and its relation with HAI, fibrosis, serum alanine aminotransferase (ALT) levels, HBeAg status and HBV DNA levels were assessed. Results: The presence of nuclear expression of HBcAg did not show any correlations with ALT levels, HAI and fibrosis score. When the groups were categorized according to the HBeAg status, nuclear HBcAg expression was found to be high in HBeAg positive patients. However, HBcAg nuclear expression showed significant correlations with HBV DNA levels and fibrosis scores in HBeAg negative but not HBeAg positive patients. HBV DNA levels were also significantly associated with HAI and fibrosis scores in HBeAg negative patients. Conclusions: Significant differences found between HBeAg positive and negative patients suggest that HBeAg negative disease is different from HBeAg positive disease, and also point outs that in HBeAg negative disease, patients with nuclear HBcAg expression and increased levels of HBV DNA levels are at a higher risk of developing progressive liver disease

Usefulness of In Vivo and In Vitro Diagnostic Tests in the Diagnosis of Hypersensitivity Reactions to Quinolones and in the Evaluation of Cross-Reactivity: A ComprehenSive Study Including the Latest Quinolone Gemifloxacin

Purpose: Reports evaluating diagnosis and cross reactivity of quinolone hypersensitivity have revealed contradictory results. Furthermore, there are no reports investigating the cross-reactivity between gemifloxacin (GFX) and the others. We aimed to detect the usefulness of diagnostic tests of hypersensitivity reactions to quinolones and to evaluate the cross reactivity between different quinolones including the latest quinolone GFX. Methods: We studied 54 patients (mean age 42.31 +/- 10.39 years; 47 female) with 57 hypersensitivity reactions due to different quinolones and 10 nonatopic quinolone tolerable control subjects. A detailed clinical history, skin test (ST), and single-blind placebo-controlled drug provocation test (SBPCDPT), as well as basophil activation test (BAT) and lymphocyte transformation test (LTT) were performed with the culprit and alternative quinolones including ciprofloxacin (CFX), moxifloxacin (MFX), levofloxacin (LFX), ofloxacin (OFX), and GFX. Results: The majority (75.9%) of the patients reported immediate type reactions to various quinolones. The most common culprit drug was CFX (52.6%) and the most common reaction type was urticaria (26.3%). A quarter of the patients (24.1%) reacted to SBPCDPTs, although their STs were negative; while false ST positivity was 3.5% and ST/SBPCDPTs concordance was only 1.8%. Both BAT and LTT were not found useful in quinolone hypersensitivity. Cross-reactivity was primarily observed between LFX and OFX (50.0%), whereas it was the least between MFX and the others, and in GFX hypersensitive patients the degree of cross-reactivity to the other quinolones was 16.7%. Conclusions: These results suggest that STs, BAT, and LTT are not supportive in the diagnosis of a hypersensitivity reaction to quinolone as well as in the prediction of cross-reactivity. Drug provocation tests (DPTs) are necessary to identify both culprit and alternative quinolones

The prevalence of Hymenoptera venom allergy in adults: The results of a very crowded city in Euroasia

Background: There are scarce data about the prevalence of Hymenoptera venom allergy in the general population. The aim of this study was to determine the prevalence of Hymenoptera venom allergy in the general adult population of Istanbul

Paucigranulocytic asthma: Do sputum macrophages matter?

Background: Although paucigranulocytic asthma (PGA) is the most common phenotype of stable asthma, its features have not been adequately studied. In this study, we aimed to display the characteristics of PGA