نتایج جستجو برای: nineteen century
تعداد نتایج: 122991 فیلتر نتایج به سال:
INTRODUCTION Renal transplantation is the treatment of choice for children with end-stage renal failure (ESRF). The paediatric renal transplant programme in Singapore was initiated in 1989. This study aimed to examine our outcomes over the 19-year period from 1989 to 2007. MATERIALS AND METHODS A total of 38 renal transplants were performed at our centre. Another 4 patients with overseas tran...
UNLABELLED PREMISE OF THE STUDY Utah agave (Agave utahensis) and its putative subspecies, A. utahensis subsp. kaibabensis and A. utahensis subsp. utahensis, are keystone species of the Mojave Desert and Colorado Plateau in the southwestern United States. Here we developed microsatellite markers to study population structure and genetic diversity of the two subspecies of A. utahensis. • MET...
Three known flavones and seven known homoisoflavonoids were isolated from the methanolic extract of the leaves of Agave sisalanaPerrine ex Engelm. Their structures were elucidated on the basis of spectroscopic analysis. The isolated compounds were also evaluated for immunopharmacological activity. PBMC were used as target cells, and cell proliferation was determined by (3)H-thymidine uptake. (+...
Already in the late 19th century, the link between chromosomal aberrations and the pathogenesis of cancer was described by von Hanssemann [9]. Moreover, as early as the first decade of the 20th century the German zoologist Theodor Boveri developed a genetic theory of cancer based on these chromosomal aberrations [3]. Until quite recently, these ideas have received only limited attention and foc...
BACKGROUND Beta-thalassaemia is a congenital disorder caused by point mutations in a haemoglobin beta-globin chain. The heterozygous form produces microcytosis and normal iron levels, however, haemoglobin electrophoresis shows elevated amounts of haemoglobin A2 and eventually foetal haemoglobin F as well. METHODS Between 2005-2011, in three centres in Slovakia, carriers of beta-thalassaemic g...
Thermodynamic studies on the bioadsorption of Cr(III) onto Agave lechuguilla biomass were conduced. The experimental results at different temperatures were modeled using the Langmuir and Freundlich isotherms to obtain the characteristic parameters of each model. Both the Freundlich and Langmuir models were found to represent the bioadsorption process. The average adsorption capacities calculate...
BACKGROUND Pretreatment is necessary to reduce biomass recalcitrance and enhance the efficiency of enzymatic saccharification for biofuel production. Ionic liquid (IL) pretreatment has gained a significant interest as a pretreatment process that can reduce cellulose crystallinity and remove lignin, key factors that govern enzyme accessibility. There are several challenges that need to be addres...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید