Antioxidant stone water (human/friendly environment) thermal (thermogravimetric-TGA) combustion properties in biohazard (insect/fungus) wood

In this study, four different wood species walnut (Juglans regia L.), chestnut (Castanea sativa Mill.), Poplar (Populus nigra), scotch pine (Pinus sylvestris L.) were chosen and test samples were prepared according to TS 2470 principles. Especially the pine wood by taking the structure (with fungus, fungus/insect, insect), flawless wood structure is compared with the flawed wood structure. The impregnation process was carried out according to ASTM D 1413 -76 principles. Effects of the chemical characteristics of the determined Stone Water (Firetex) on the thermal decomposition properties of wood (burning degrees, degradation temperature points and residue amount) were determined with TGA (thermogravimetric analysis). According to the results of the experiment; the highest retention value was found in poplar (23.56%) and the lowest retention (12.79%) in chestnut was determined. Amount of residue; 60.84% of the highest on scotch pine wood with fungus and 56.70% of the lowest value was determined on poplar wood. Thermal deterioration was determined between 226.41-405.04 o C on wood

Evaluation of the extract obtained from various medicinal and aromatic plants “antibacterial and antioxidant⇝ in the wood industry

Throughout the history of mankind, various plants (medicinal aromatics etc.) have been used naturally to prevent all diseases, or they have been used in a wide range of fields, especially in the pharmaceutical industry, by cultivating in agriculture/greenhouse areas. However, as a result of the protection and coloring of the wood material by chemically, especially the indoor contamination causes negative effects on human health. The main objective of this study is to use the wooden product in wooden child toys, hospitals, sterile areas, pharmacies, wood-based materials used in the kitchen (fork, knife, serving plates and chopping boards etc.), playgrounds, dining table surfaces, nursery and kindergarten furniture, beehives etc. In addition, it will be recommended to use on all surfaces where there is an antibacterial / antioxidant effect, as well as on the surfaces with collective contact such as door handles, cabinet handles, elevator buttons and cash dispenser keys. In research, extracts of Evelik (Rumex patientia L.) and Çakşır (Ferula comunis L.) herbs (1% concentration) from medicinal aromatic plants were prepared and spruce and mahogany wood were used as wood type. According to ASTM D 143-76 principles, retention and bending resistance properties were determined by impregnation according to the results of the experiment, the highest retention (0.55%) and bending strength (100.20 N/mm2 ) were determined in Evelik plant and the optimum increase was determined when the results were compared with the control sample

Determination of antioxidant and antimicrobial activity of sweetgum (Liquidambar orientalis) leaf, a medicinal plant

In the study, sweetgum tree (Liquidambar orientalis), which is an endemic species that grows in Mugla, Koycegiz and is applied for medicinal purposes among the public, its leaves was examined. The antioxidant ability of the extract obtained from dried plant leaves has been evaluated using a variety of methods which are Total Phenolic Substance, Total Flavonoid, FRAP, CUPRAC, DPPH, and ABTS(+). Simultaneously, the antimicrobial activity of the plant extract was examined using disk diffusion and microdilution methods to determine the minimum inhibitor concentration (MIC). While the total phenolic content of Liquidambar orientalis extract was 96.34 mg GAE/g, the total amount of flavonoid was 2.15 mg QE/g. When the results of the antioxidant analysis were examined, it was observed that it had a good level of antioxidant activity with the results of 49.25 +/- 0.54 mmol TEAC/g according to the CUPRAC method, 39.83 +/- 0.25 mu mol Fe/g according to the FRAP method, 80.34 mu g/mL according to the DPPH method and 51.20 mu g/mL according to the ABTS(+) method. As a result of the antimicrobial analysis, it was indicated that L. orientalis extract was more effective on Staphylococcus aureus (S. aureus), which is a gram-positive bacterium and causes a wide variety of clinical diseases. Even, L. orientalis extract with an MIC value of 10 mg/mL has been found to have a higher antibacterial effect than Amoxicillin+Clavulanic acid, which is used as a standard drug in that field. This research is significant because it is the first to report the determination of all biological activities for L. orientalis, including total polyphenols, flavonoid contents, antioxidant content, and antimicrobial activity

Evaluation of Incidence and Clinical Features of Antibody-Associated Autoimmune Encephalitis Mimicking Dementia

Background. Anti-neuronal autoimmunity may cause cognitive impairment that meets the criteria for dementia. Objective. Our aim was to detect the incidence and clinical features of autoimmune encephalitis imitating clinical findings of primary dementia disorders and to delineate the validity of anti-neuronal antibody screening in dementia patients. Methods. Fifty consecutive patients fulfilling the clinical criteria for primary dementia, 130 control patients, and 50 healthy controls were included. Their sera were investigated for several ion channel and glutamic acid decarboxylase (GAD) antibodies by a cell-based assay, radioimmunoassay, and ELISA, as required. Results. Sixteen patients satisfying dementia criteria had atypical findings or findings suggestive of autoimmune encephalitis. N-methyl-D-aspartate receptor (NMDAR) antibody was detected in a patient with dementia, Parkinsonism, and REM sleep behavior disorder (RBD) fulfilling the criteria for dementia with Lewy bodies (DLB). One control patient with bipolar disease displayed low anti-GAD antibody levels. Conclusions. Our study showed for the first time the presence of parkinsonism and RBD in an anti-NMDAR encephalitis patient mimicking DLB. Although autoimmune encephalitis patients may occasionally present with cognitive decline, most dementia patients do not exhibit anti-neuronal antibodies, suggesting that routine analysis of these antibodies in dementia is not mandatory, even though they display atypical features

International nosocomial infection control consortium (INICC) report, data summary of 36 countries, for 2004-2009

The results of a surveillance study conducted by the International Nosocomial Infection Control Consortium (INICC) from January 2004 through December 2009 in 422 intensive care units (ICUs) of 36 countries in Latin America, Asia, Africa, and Europe are reported. During the 6-year study period, using Centers for Disease Control and Prevention (CDC) National Healthcare Safety Network (NHSN; formerly the National Nosocomial Infection Surveillance system [NNIS]) definitions for device-associated health care-associated infections, we gathered prospective data from 313,008 patients hospitalized in the consortium's ICUs for an aggregate of 2,194,897 ICU bed-days. Despite the fact that the use of devices in the developing countries' ICUs was remarkably similar to that reported in US ICUs in the CDC's NHSN, rates of device-associated nosocomial infection were significantly higher in the ICUs of the INICC hospitals; the pooled rate of central line-associated bloodstream infection in the INICC ICUs of 6.8 per 1,000 central line-days was more than 3-fold higher than the 2.0 per 1,000 central line-days reported in comparable US ICUs. The overall rate of ventilator-associated pneumonia also was far higher (15.8 vs 3.3 per 1,000 ventilator-days), as was the rate of catheter-associated urinary tract infection (6.3 vs. 3.3 per 1,000 catheter-days). Notably, the frequencies of resistance of Pseudomonas aeruginosa isolates to imipenem (47.2% vs 23.0%), Klebsiella pneumoniae isolates to ceftazidime (76.3% vs 27.1%), Escherichia coli isolates to ceftazidime (66.7% vs 8.1%), Staphylococcus aureus isolates to methicillin (84.4% vs 56.8%), were also higher in the consortium's ICUs, and the crude unadjusted excess mortalities of device-related infections ranged from 7.3% (for catheter-associated urinary tract infection) to 15.2% (for ventilator-associated pneumonia). Copyright © 2012 by the Association for Professionals in Infection Control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved

Deterjan ile kirletilmiş yüzey sularında yüksek degradasyon yeteneğine sahip izolatların araştırılması

Tez (Yüksek Lisans) -- Kırıkkale Üniversitesi101697

Investigation of isolates with high degradation abilities in detergent contaminated surface waters

YÖK Tez ID: 418463Biyolojik olarak parçalanabilen deterjanlar, atık işleme tesislerinde veya nehir ve akarsularda yeterli zaman verildiğinde degrade olurlar. Ancak ham su kaynaklarının çoğunun zaman zaman deterjanlar veya deterjanların kısmi parçalanmış yan ürünleri tarafından kirletildiği yapılan birçok çalışma ile saptanmıştır. Sodyum dodesil sülfat (SDS) ev ve endüstride en yaygın kullanılan deterjanlardan bir tanesidir. Kullanımından sonra büyük miktarlarda yüzey sularına atılmaktadır. Bu durumda suların doğal dengesini bozarak, suda yaşayan canlıları ve onlarla beslenen insanların sağlığını tehdit etmektedir. Bu tez ile Kırıkkale-Kızılırmak'ın deterjan kirliliği bakımından değerlendirilmesi,deterjan ile kirlenmiş yüzey sularında degradasyon yapma yeteneğine sahip olan bakterilerin izole edilmesi, tanımlanması, deterjan degradasyon yeteneklerinin belirlenmesi amaçlanmıştır. Bu amaçla yapılan çalışmalar sonrası deterjan kirliliği tespit edilmiş olan bölgelerdenErdemli Mah.-Sarımusalı Mevkii, Bucakyazı-Sazbucağı Mevkii, Kapulukaya Baraj Girişi ve Kızılırmak İl Sınırı Çıkışı Mevkii bölgelerinden su örnekleri alınmış, bu su örneklerinden SDS degradasyonu yapan bakteriler izole edilmiş, bu bakterilerde SDS degredasyonundan sorumlu sdsA geni araştırılmış, 16S rDNA sekans analizi kullanılarak bu bakteriler tanımlanmış ve SDS degradasyon yetenekleri belirlenmiştir. Daha sonra ise SDS degradasyonundan sorumlu sdsA geni tarafından kodlanan alkil sülfataz enzim aktivitesi araştırılmıştır. Çalışmalar sonucunda 2.8 U/mg alkil sülfataz enzim aktivitesine sahip Pseudomanas fluorescens SDS3 ve SDS6, Pseudomanas baetica SDS8 suşları ile, 1.90 U/mg alkil sülfataz enzim aktivitesine sahip Pseudomanas fluorescens SDS6 izolatları belirlenmiştir. % 70 ile % 80 arasında SDS degredasyonu gösteren iki Pseudomanas fluorescens SDS3&SDS6 ile bir Pseudomanas baetica SDS8 izolatları elde edilmiştir. Elde edilen bu izolatlar ile yüzey sularında bulunan deterjanların uzaklaştırma çalışmalarında kullanılmak için potansiyel oluşturdukları belirlenmiştir.Detergents, especially biodegradable ones, are degraded in wastewater treatment plants or in streams when sufficient time is given. However, many studies have still revealed that most of the surface waters are contaminated with detergens or their side products. Among all detergents, sodium dodecyl sulfate (SDS) is highly common is household and industry. After its we, most of the SDS discharged in to streams and endangers aquatic environment and human life. Therefore, this thesis study aimed at the assesment of Kırıkkale-Kızılırmak interms of detergent pollution. Four location, namely, Erdemli Mah.-Sarımusalı Mevkii, Bucakyazı-Sazbucağı Mevkii, Kapulukaya Baraj Girişi, Kızılırmak İl Çıkışı revealed to be contaminated with detergents were used to selectively isolate SDS degrading bacteria. After selection and identification the bacteria were further analysed for their SDS degradation ability, sdsA gene and alkyl sulfatase enzyme activity. The studies revualed three bacterial isolates including two Pseudomanas fluorescens SDS3&SDS12-1 and one Pseudomanas baetica SDS8 with 2.8 U/mg alkyl sulfatese enzyme activity. The isolates SDS3, SDS12-1 and SDS8 displayed % 70-80 SDS degradation ability. The study pointed out these isolates as potential isolates for removel of detergents from contaminated surface waters

Baritle Emprenyenin (BaSO4) Odunun Fiziksel ve Mekanik Özellikleri Üzerine Etkisi

Bu çalışmada, baritin ahşapta emprenye etme özellikleri ilk kez araştırılmıştır. Çevreyle ilgili insan sağlığına zararsız olduğu için, bu doğal materyali çeşitli alanlarda (ör. Mobilya ve inşaat) kullanımı amaçlanmıştır. Barit (BaSO4) solüsyonu farklı konsantrasyonlarda barit (% 1, % 3, % 5) ile hazırlanmış ve ASTM-D 1413-76 standartlarına göre emprenye işlemi yapılmıştır. Bu çalışmada, ağaç türleri olarak Doğu Karadeniz bölgesinden alınan Sarıçam (Pinus sylvestris L.) ve Doğu Kayını (Fagus orientalis Lipsky) kullanılmıştır. Sonuçlar; her iki ahşap türünde, emprenye solüsyonundaki barit konsantrasyonunun artmasıyla, retensiyon %, fiziksel özellikler ve mekanik özelliklerin arttığını göstermiştir. En yüksek yoğunluk (0.63 g/cm3), elastikiyet modülü (16920 N/mm²), eğilme direnci (160.40 N/mm²) ve dinamik eğilme direnci (2.78 kpm/cm2) değerleri, sırasıyla, %1, %5, %50 ve %50’lik derişime sahip çözeltilerle emprenye edilen Kayın odunu örneklerinde elde edilmiştir

The Effects of Impregnation with Barite (BaSO4) on the Physical and Mechanical Properties of Wood Materials

Bu çalışmada, baritin ahşapta emprenye etme özellikleri ilk kez araştırılmıştır. Çevreyle ilgili insan sağlığına zararsız olduğu için, bu doğal materyali çeşitli alanlarda (ör. Mobilya ve inşaat) kullanımı amaçlanmıştır. Barit (BaSO4) solüsyonu farklı konsantrasyonlarda barit (% 1, % 3, % 5) ile hazırlanmış ve ASTM-D 1413-76 standartlarına göre emprenye işlemi yapılmıştır. Bu çalışmada, ağaç türleri olarak Doğu Karadeniz bölgesinden alınan Sarıçam (Pinus sylvestris L.) ve Doğu Kayını (Fagus orientalis Lipsky) kullanılmıştır. Sonuçlar; her iki ahşap türünde, emprenye solüsyonundaki barit konsantrasyonunun artmasıyla, retensiyon %, fiziksel özellikler ve mekanik özelliklerin arttığını göstermiştir. En yüksek yoğunluk (0.63 g/cm3), elastikiyet modülü (16920 N/mm²), eğilme direnci (160.40 N/mm²) ve dinamik eğilme direnci (2.78 kpm/cm2) değerleri, sırasıyla, %1, %5, %50 ve %50'lik derişime sahip çözeltilerle emprenye edilen Kayın odunu örneklerinde elde edilmiştir.The aim of the study was to investigate the effects of Barite on the physical and mechanical properties of wood. Barite as an impregnation material was used to be harmless to environment-related human health. Barite (BaSO4) solution was prepared with different concentrations of barite (1%, 3%, 5%), and the impregnation process of the samples were conducted according to ASTM-D 1413-76. Scotch pine (Pinus sylvestris L.) and Oriental Beech (Fagus orientalis L.) obtained from the Eastern Black sea region in Turkey were used. According to the results, it showed that each wood types, retention ratio, physical properties, and mechanical properties increased with increasing concentration of barite in the impregnation solution. For the Beech wood, the highest air-dried and dried densities were found to the samples impregnated with solution that had a 1% concentration (0.63 g/cm3); the highest modulus elasticity (MOE) was in samples impregnated with solution that had a 5% concentration (16920 N/mm²); the highest bending strength (MOR) was in samples impregnated with solution that had a 50% concentration (160.40 N/mm²); and the highest dynamic bending strength was in the beech impregnated with solution that had a 50% concentration (2.78 kpm/cm2)