Xem 1-20 trên 53 kết quả Higher oxides
  • The first chapter (236) in this volume of the Handbook on the Physics and Chem- istry of Rare Earth is a recapitulation of the scientific achievements and contri- butions made by the late Professor LeRoy Eyring (1919–2005) to the science of the lanthanide oxides in which the lanthanide element has a valence equal to or greater than three. Although LeRoy had a broad range of interests in the chemistry of the rare earths and actinides the main focus of his outstanding scientific career was concerned with the lanthanide higher oxides. This chapter was written by Dr.

    pdf469p banhkem0908 24-11-2012 43 6   Download

  • The main purpose of this report is to provide an update to a previous Royal College of Psychiatrists document, Mental Health of Students in Higher Education, published in 2003. Over the past decade, the demographics of the student population have undergone many changes that are of relevance to the provision of mental healthcare. The numbers of young people in higher education have expanded and they have become more socially and culturally diverse.

    pdf0p chiecxedien 02-01-2013 17 2   Download

  • From the membrane fraction of the Gram-positive bacter-ium Carboxydothermus hydrogenoformans,anenzyme complex catalyzing the conversionofCOtoCO2andH2was purified. The enzyme complex showed maximal CO-oxidi-zing:H2 -evolving enzyme activity with 5% CO in the head-space (450 U per mg protein). Higher CO concentrations inhibited the hydrogenase present in the enzyme complex. For maximal activity, the enzyme complex had to be activated by either CO or strong reductants.

    pdf10p tumor12 22-04-2013 7 1   Download

  • Forty undergraduate students from three different faculties were recruited for the study. Using official IELTS Test results obtained by the students at the beginning of their study in Australia and towards the end, as well as interviews with most of the students, the study investigated patterns of improvement, as well as lack of improvement among the 40 students. While most of the students in the study did achieve a higher score in the IELTS Test taken towards the end of their study in Australia, only a small number were able to achieve an Overall score of 7.0, with at least...

    pdf162p dambaotaikhoan 04-05-2013 26 11   Download

  • On broader measures of innovation, New Zealand fi rms have higher rates of marketing and product innovation, but relatively lower rates of process and organisational innovation. New Zealand businesses focus their innovation mainly on production for the domestic market rather than international markets, and innovation for international markets is low relative to fi rms in the EU. The share of medium-high and high-tech products in exports is low, and the sophistication of New Zealand’s exports overall is consistent with its per capita income.

    pdf36p trinhcaidat 19-04-2013 24 7   Download

  • Agriculture and forestry are poised on the brink of a quantum leap forward through the further application of exciting new tools such as genomics and transgenic plants. In the near future, it will be possible to produce a higher quantity of improved quality crops than even imagined just a few years ago. In addition to feed and food, it will be possible to provide raw materials for industrial uses. For example, cotton fibers, wood ligno-celluloses, corn carbohydrates, soybean oils, and other plant constituents will be altered via designed changes in metabolic pathways.

    pdf102p loixinloi 08-05-2013 23 7   Download

  • The annual incidence of CLL varies with the age and sex structure of the population. Whereas in the USA it has been estimated at 3.5 per 100,000 (males 5.0: females 2.5) [2], in the UK estimates of 6.15 per 100,000 have been reported [3]. However, since in a majority of patients diagnosis is established because of an incidental blood count performed for irrelevant reasons and because of increasing life expectancies, the prevalence should augment in the future. The median age for diagnosis is 70 for males and 74 for females.

    pdf152p wawawawawa 26-07-2012 33 5   Download

  • Evidence of increasing age includes wrinkles and sagging skin. Aging skin appears thinner, more pale, and clear (translucent). Thus, skin is at higher risk for injury. Large pigmented spots (called age spots, liver spots, or lentigos) may appear in sun-exposed areas. The blood vessels of the skin become more fragile. This leads to bruising, bleeding under the skin. Women’s skin gradually produces less oil beginning after menopause. This can make it harder to keep the skin moist, resulting in dryness and itchiness. The sweat glands produce less sweat.

    pdf17p thankinhphanliet 01-01-2013 38 5   Download

  • In his essay ‘The Film Text and Film Form’ in the Oxford Guide to Film Studies, Robert P. Kolker describes the key features of the Classical Hollywood Style as they were developed in the early years of Hollywood filmmaking. “The continuity style developed as a way to present a story in forward progression…. Early filmmakers found that, as long as they contained some narrative glue, scenes placed side by side would be understood as occurring either simultaneously, earlier or later than one another.

    pdf0p khanhchilam 01-04-2013 22 5   Download

  • It is likely that with climate change (which could lead to increased rainfall, river flows, and higher coastal storm surges) and development pressures, flood risk in England is going to increase in the future, with potentially the most significant changes likely to happen in the latter half of the century. The Environment Agency has prepared a Long-term investment strategy that will allow us to understand future levels of risk and what investment may be needed to manage it over the next 25 years and beyond.

    pdf285p yeutinh98 26-09-2012 55 4   Download

  • Applying much more phosphorus fertilizer and manure than crops can use builds up phosphorus in soil. After continuous over-fertilization, agricultural fields become a persistent reservoir for phosphorus that ends up polluting water bodies. Recent USGS study found that in the agricultural Midwest, many streams have their highest nitrogen concentrations in the spring, peaking in April-May.

    pdf0p saimatkhauroi 01-02-2013 13 4   Download

  • Despite its importance in plant metabolism, no sequences of higher plant ATP-dependent phosphofructokinase (EC 2.7.1.11) are annotated in the databases. We have purified the enzyme from spinach leaves 309-fold to electrophoretic homogeneity. The purified enzyme was a homotetramer of 52 kDa subunits with a specific activity of 600 mUÆmg )1 and aKmvalue for ATP of 81 lm.

    pdf10p inspiron33 23-03-2013 11 4   Download

  • Fading support by the financial system for firms, and especially new entrants, is a major concern in the current context, underscoring the primary importance of fixing the financial system. Growing aversion to risk combined with other factors (such as difficulties for investors to exit) is already drying up many sources of seed and venture capital. The total amount of venture capital investment in the United States started declining at the beginning of 2008, and the fall accelerated at the end of 2008 and beginning of 2009 (Figure 2).

    pdf28p trinhcaidat 19-04-2013 25 4   Download

  • ORRAF was established in 1960 to improve the livelihood of small-scale rubber producers, especially those that are located in Southern Thailand. ORRAF is a government enterprise under the administration of the Ministry of Agriculture and Cooperatives.

    pdf65p thieubaotrang 23-04-2013 26 4   Download

  • The credit quality of a bond depends on the issuer’s ability to pay interest on the bond and, ultimately, to repay the principal upon maturity. Independent bond-rating agencies evaluate the financial health of bond issuers and issue alphabetical credit-quality ratings. Usually a lower credit rating means that the issuer must pay higher interest to offset the higher risk that principal and interest won’t be repaid on time. Figure 2 on page 10 describes the ratings used by Moody’s Investors Service, Inc., and Standard & Poor’s Corporation.

    pdf52p enter1cai 16-01-2013 17 3   Download

  • Despite the different methods used, the results of the three countries are similar, especially concerning PM10 levels caused by road traffic. The differences in total PM10 can be explained by the fact that (a) the background concentration is higher in Central and Eastern Europe than in the Western parts of Europe and (b) for Switzerland, large areas at higher altitudes have significantly lower PM10 levels. Furthermore, the sulphate fraction of the background concentration may increase from Western to Eastern Europe, resulting in an increase of the non-traffic related PM10 fraction.

    pdf14p doipassword 01-02-2013 14 3   Download

  • Conditional branch instructions present a signi cant prob- lem for modern pipelined CPUs because the CPUs do not know in advance which of the two possible outcomes of the comparison will happen. CPUs try to predict the outcome of branches, and have special hardware for maintaining the branching history of many branch instructions. A mispre- dicted branch incurs a substantial delay; [4] reports that the branch misprediction penalty for a Pentium II proces- sor is 17 cycles.

    pdf23p yasuyidol 02-04-2013 24 3   Download

  • The ARRA is projected to create or retain 3.5 million jobs as of the fourth quarter of 2010. 3 These jobs are projected to be in all major industries in the economy. The ARRA also spurs business investment, which is a key source of long-run growth, through loan guarantee programs and important support for new areas with excellent potential. Investments in renewable energy, the smart grid, and health information technology are projected to create many new job opportunities in a diverse set of industries spanning the service and manufacturing sectors. ...

    pdf87p trinhcaidat 19-04-2013 17 3   Download

  • Instead of making the common assumptions that employers only consider the productivity of employees, that workers ignore the characteristics of those with whom they work, and that customers only care about the quali- ties of the goods and services provided, discrimination coefficients incorpo- rate the influence of race, gender, and other personal characteristics on tastes and attitudes. Employees may refuse to work under a woman or a black even when they are well paid to do so, or a customer may prefer not to deal with a black car salesman.

    pdf21p trinhcaidat 19-04-2013 18 3   Download

  • DNA transactions in eukaryotes require that proteins gain access to target sequences packaged in chromatin. Further, interactions between distinct nucleoprotein complexes are often required to generate higher-order structures. Here, we employed two prokaryotic site-specific recombination systems to investigate how chromatin packaging affects the assembly of nucleoprotein structures of different complexities at more than 30 genomic loci. The dynamic nature of chromatin permitted protein–DNA and DNA–DNA interactions for sites of at least 34 bp in length.

    pdf7p system191 01-06-2013 13 3   Download

Đồng bộ tài khoản