Search results

Filter

Filetype

Your search for "*" yielded 563703 hits

Survey of Design Methods and Material Characteristics in Rubber Engineering

The unique properties of elastomeric materials are taken advantage of in many engineering applications. Elastomeric units are used as couplings or mountings between stiff structures. Examples of these are shock absorbers, vibration insulators, flexible joints, seals and suspensions.The development of computers and of analysis programs in this area has given engineers a new tool for the design of e

The structural basis of hyperpromiscuity in a core combinatorial network of type II toxin-antitoxin and related phage defense systems

Toxin-antitoxin (TA) systems are a large group of small genetic modules found in prokaryotes and their mobile genetic elements. Type II TAs are encoded as bicistronic (two-gene) operons that encode two proteins: a toxin and a neutralizing antitoxin. Using our tool NetFlax (standing for Network-FlaGs for toxins and antitoxins), we have performed a large-scale bioinformatic analysis of proteinaceous

Bottom-water oxygenation and environmental change in Santa Monica Basin, Southern California during the last 23kyr

The Southern California Borderland is a region that experiences strong natural variations in bottom water oxygen and pH. We use marine sediments from Santa Monica Basin to reconstruct environmental conditions in the basin's bottom water from the Last Glacial Maximum (LGM) to present. We then compare the records to the adjacent Santa Barbara Basin and Santa Lucia Slope. High-resolution records of b

Pleiotropy of genetic variants on obesity and smoking phenotypes : Results from the Oncoarray Project of The International Lung Cancer Consortium

Obesity and cigarette smoking are correlated through complex relationships. Common genetic causes may contribute to these correlations. In this study, we selected 241 loci potentially associated with body mass index (BMI) based on the Genetic Investigation of ANthropometric Traits (GIANT) consortium data and calculated a BMI genetic risk score (BMI-GRS) for 17,037 individuals of European descent f

No Coincident Nitrate Enhancement Events in Polar Ice Cores Following the Largest Known Solar Storms

Knowledge on the occurrence rate of extreme solar storms is strongly limited by the relatively recent advent of satellite monitoring of the Sun. To extend our perspective of solar storms prior to the satellite era and because atmospheric ionization induced by solar energetic particles (SEPs) can lead to the production of odd nitrogen, nitrate spikes in ice cores have been tentatively used to docum

Clinical determinants of elevated systolic pulmonary artery pressure measured by transthoracic Doppler echocardiography in early systemic sclerosis

Objective. To explore the prevalence and clinical associations of elevated systolic pulmonary artery pressure (sPAP), measured by Transthoracic Dopplerechocardiography (TTE) in patients with early systemic sclerosis (SSc). Methods. A cross-sectional analysis of the prospective EULAR Scleroderma Trial and Research (EUSTAR) database was performed. SSc patients with < 3 years from the first non-Rayna

Violaxanthin de-epoxidase and its closest relative: identification and characterization

Växter behöver ljus för att växa. Ljuset omvandlas till kemisk energi genom fotosyntes i växtens blad. Den kemiska energin kan sedan användas av växten. Ljusabsorptionen i växter har en begränsning. Alltför mycket ljus kommer att orsaka bildning av högenergimolekyler som är skadliga för växterna. Därför måste växter justera mängden ljus som tas upp. Ljuset i miljön förändras ständigt och exponerinLight is essential for plants and algae to process photosynthesis. However, excess of light will cause damage to the organism. A process called non-photochemical quenching (NPQ) is an important way for these organisms to protect themselves from photo oxidative damage. The NPQ process is depend on the xanthophyll cycle in thylakoids, which is controlled by the Violaxanthin de-epoxidase (VDE) and ze