欣曼科研大厦 美国亚特兰大

正该项目为佐治亚理工学院的一项重要建筑遗产注入了新的活力,将其改建为建筑学院的灵活附属建筑,包括工作室、实验室、教室和研究室。原建筑由一个50英尺高的大跨度工业顶棚,在垂直轴上重新规划,水平轴上保持开放和灵活性。不间断的地板主要作为工作室空间,但也可以重新配置用于大型组件。大跨度空间融入四方院和公共空间城市网络,最大程度的与学院建立联系。对于学校来说,重要的     

Eruca sativa Might Influence the Growth,Survival under Simulated Gastrointestinal Conditions and Some Biological Features of Lactobacillus acidophilus,Lactobacillus plantarum and Lactobacillus rhamnosus Strains

The growth and viability of three Lactobacillus strains, Lactobacillus acidophilus, Lactobacillus plantarum and Lactobacillus rhamnosus, after their passage through simulated gastric and pancreatic juices were studied as a function of their presence in the growth medium of rocket salad (Eruca sativa). The presence of E. sativa affected some of the biological properties of the strains. For example, L. acidophilus and L. plantarum worked more efficiently in the presence of E. sativa, increasing not only the antioxidant activity of the medium, but also their own antioxidant power and antimicrobial activity; L. rhamnosus was not affected in the same manner. Overall, the presence of vegetables might help to boost, in specific cases, some of the characteristics of lactobacilli, including antioxidant and antimicrobial power.     

Role of platelet glycoprotein PL(A1/A2) polymorphism in restenosis after percutaneous transluminal coronary angioplasty

This study suggests a macroheterogeneity in prevalence of platelet glycoprotein PL(A1/A2) polymorphism in different ethnic populations. In patients undergoing percutaneous transluminal coronary angioplasty, this polymorphism does not represent an independent risk factor but seems to be implicated in restenosis after percutaneous transluminal coronary angioplasty.     

Elevated tissue factor and tissue factor pathway inhibitor circulating levels in ischaemic heart disease patients

The number and arrangement of scutellar bristles on the thorax of Drosophila melanogaster is largely invariant in wild-type stocks. This character therefore appears to be buffered against changes in phenotype, and has previously been described as a canalized character. Mutations that do alter this phenotype increase the variability in bristle number and can reveal otherwise cryptic genetic differences at other loci. This phenomenon is examined and possible mechanisms contributing to stability of this developmental event are discussed, but the notion that the character is canalized is found not to be heuristic.     

A new type of biepitaxialc-axis tilted YBCO Josephson junction

A novel fabrication procedure of high critical temperature superconductor Josephson junctions (HTCSJJ) has been developed by a 90° rotation of YBa₂Cu₃O_7?x c-axis around an in-plane direction, on the basis of concepts of the biepitaxial technique. YBa₂Cu₃O_7?x grows oriented along (001) direction on a MgO seed layer deposited on a (110) SrTiO₃ substrate and along (110) direction on the bare substrate. Josephson junctions of good quality were obtained exhibiting RSJ behavior and features characteristic of HTCSJJ phenomenology. Even if not uniform, in some samples, the nature of the critical currentI _c is completely Josephson, as resulting from theI _c dependence on the applied magnetic field. The maximum measuredI _c R _N value atT=4.2K is 2mV.     

Study of Phase Dynamics in Moderately Damped Josephson Junctions

The moderately damped regime (MDR) in a Josephson junction (JJ) is quite distinct from the well-known case of underdamped systems and quite common in devices characterized by low critical currents. Measurements of switching current distribution (SCD) are a direct way of discriminating the phase dynamics and the transport also in nontrivial cases of moderate damping. MDR is going to be more and more common with advances in nanopatterning superconductors and in materials science finalized to build hybrid devices. We report on measurements of SCDs, both in the thermal and quantum regime, on moderately damped NbN/MgO/NbN JJs. A transition from the Thermal Activation (TA) regime to Macroscopic Quantum Tunnelling (MQT) occurs at about 90 mK, while above 1.6 K a phase diffusive dynamics is clearly observed. The combined analysis of these regimes through numerical simulations allowed us to extract the fundamental parameters, which completely characterize the phase dynamics of such moderately damped JJs.     

Preparation and characterization of transparent/conductive nano-composites films

Polymer-embedding of nano-sized indium tin oxide (SnO·In₂O₃, ITO) produces electrically conductive materials transparent to the visible light at filling factors higher than the percolation threshold. ITO powders are commercially available in an aggregated form and a disaggregation technique was required. Here, aggregated ITO nanoparticles were transformed to colloidal suspension by high-speed stirring. This finely dispersed ceramic suspension was stabilized by addition of poly(vinyl pyrrolidone) and the obtained colloidal system was cast on an optical-grade substrate (PET) to produce electrically conductive-transparent nanocomposite films. Preliminary mechanical and electrical characterization of these films showed good conductivity and interfacial properties.     

A Lyapunov–Krasovskii methodology for ISS and iISS of time-delay systems

This paper presents a Lyapunov–Krasovskii methodology for studying the input-to-state stability and the integral input-to-state stability of nonlinear time-delay systems. An integral input-state estimate which takes into account non-zero initial conditions is also proposed.     

A prospective, population-based study of the demographics, epidemiology, management, and outcome of out-of-hospital pediatric cardiopulmonary arrest

STUDY OBJECTIVEs: To perform a population-based study addressing the demography, epidemiology, management, and outcome of out-of-hospital pediatric cardiopulmonary arrest (PCPA). METHODS: Prospective, population-based study of all children (17 years of age or younger) in a large urban municipality who were treated by EMS personnel for apneic, pulseless conditions. Data were collected prospectively for 3(1/2) years using a comprehensive data collection tool and on-line computerized database. Each child received standard pediatric advanced cardiac life support. RESULTS: During the 3(1/2)-year period, 300 children presented with PCPA (annual incidence of 19. 7/100,000 at risk). Of these, 60% (n=181) were male (P =.0003), and 54% (n=161) were patients 12 months of age or younger (152,500 at risk). Compared with the population at risk (32% black patients, 36% Hispanic patients, 26% white patients), a disproportionate number of arrests occurred in black children (51.6% versus 26.6% in Hispanics, and 17% in white children; P <.0001). Over 60% of all cases (n=181) occurred in the home with family members present, and yet those family members initiated basic CPR in only 31 (17%) of such cases. Only 33 (11%) of the total 300 PCPA cases had a return of spontaneous circulation, and 5 of the 6 discharged survivors had significant neurologic sequelae. Only 1 factor, endotracheal intubation, was correlated positively with return of spontaneous circulation (P =.032). CONCLUSION: This population-based study underscores the need to investigate new therapeutic interventions for PCPA, as well as innovative strategies for improving the frequency of basic CPR for children.     

Changes in Fatty Acids,Tocochromanols, Carotenoids and Chlorophylls Content During Flaxseed Development

A comparative study was performed to determine tocopherols, tocotrienols, fatty acids, and pigments content during the development of three varieties of flaxseed (H52, O116 and P129). Seed samples were collected at regular intervals from 7 to 56 days after flowering (DAF). The highest content of chlorophyll (89.72–130.5 mg/kg oil) was detected at 7 DAF. The maximum level of carotenoids (52.10–65.55 mg/kg oil) was reached at 21 DAF. During seed development, unsaturated fatty acids are the major component, reaching 85% of the total fatty acids while saturated fatty acids content were about 15%. The maximum level of γ-tocopherol (585 mg/kg oil) was reached at 42 DAF in P129 variety. These results may be useful for evaluating the flaxseed quality and determining its optimal harvest period.