Fermion mass and mixing patterns from a rotating mass matrix

It is shown that all existing data on mixing between up and down fermion states (i.e. CKM matrix and neutrino oscillations) and on the hierarchical quark and lepton mass ratios between generations are consistent with the two phenomena being both consequences of a mass matrix rotating in generation space with changing energy scale. As a result, the rotation of the mass matrix can be traced over some 14 orders of magnitude in energy from the mass scale of the $t$-quark at 175 GeV to below that of the atmospheric neutrino at 0.05 eV. This is a summary of recent work done in collaboration with Chan Hong-Mo and Jose Bordes.Comment: 12 pages latex, 6 figures, talk given at the International Symposium on Frontiers of Science - In Celebration of the 80th Birthday of C N Yang, June 2002, Beijin

Optimization of perturbative similarity renormalization group for Hamiltonians with asymptotic freedom and bound states

A model Hamiltonian that exhibits asymptotic freedom and a bound state, is used to show on example that similarity renormalization group procedure can be tuned to improve convergence of perturbative derivation of effective Hamiltonians, through adjustment of the generator of the similarity transformation. The improvement is measured by comparing the eigenvalues of perturbatively calculated renormalized Hamiltonians that couple only a relatively small number of effective basis states, with the exact bound state energy in the model. The improved perturbative calculus leads to a few-percent accuracy in a systematic expansion.Comment: 6 pages of latex, 4 eps figure

Should A Program Of Sex Education Be Mandatory in Public Schools From 4th-12th Grade?

For a position paper and presentation in her Changing Family course last fall, Tara explored the debate surrounding sexual education in the public school system. After completing extensive research regarding the policies which are already in place and evaluating their success, Tara formed the position that a program of sexual education should be mandatory in public schools form 4th to 12th grade. During an era where popular reality television shows include “Sixteen and Pregnant” as well as “Teen Mom” depict what a large issue teenage pregnancy is and how mainstream it has become in society. Tara does an excellent job of giving a well rounded view of the issue and supporting her claims with research and statistics

Review of The British Commonwealth and Victory in the Second World War by Iain E. Johnston-White

Review of The British Commonwealth and Victory in the Second World War by Iain E. Johnston-White

Inefficiency in the Post Anesthesia Care Unit: A Quality Improvement Initiative

Background: The post anesthesia care unit (PACU) is a busy environment in which nurses communicate with patients, family members, and a large team of perioperative professionals. PACU nurses were experiencing an unmanageable number of work interruptions due to a higher patient census which increased the daily surgical caseload. Aim: The purpose of this project was to improve efficiency and nurses’ job satisfaction by making work interruptions manageable in the PACU. Methods: Based on Kotter’s Change Theory, a quality improvement initiative was implemented using a change in the communication process. Qualitative and quantitative data was gathered in the PACU and on other units with the intervention roll-out. A pre and post-intervention survey was used to evaluate work interruptions and their effects experienced by nurses in the PACU environment. Results: The use of communication technology impacted work interruptions, but not significantly enough to improve nursing efficiency and nurse satisfaction in the PACU. Conclusion and Implications for CNL® Practice: The next step is to recommend adding a CNL® as a surgical nurse liaison (SNL) to the perioperative team. Ideally, a CNL® with excellent communication and quality improvement skills will exemplify the roles of lateral integrator and patient advocate to improve efficiency. This physical solution, coupled with the communicative technology tool being widely integrated to all members of the perioperative team is expected to influence work interruptions and improve nurse satisfaction more dramatically

Exploiting of Wasted Cooking Oil at Making Biodiesel Through Transesterification Process with Applies K2CO3 Catalyst as Fuel Diesel of Renewable

This research aim is to know the influence from various USAge of K2CO3 catalyst and methanol solvent to biodiesel from wasted cooking oil. The making of biodiesel from waste cooking oil as raw material this before all was done by using esterification process with purpose to reduce %FFA >5% become < 5% with some help of the same solvent that is methanol and K2CO3 catalyst, then is continued to phase herein after is processing transesterification. The tranesterification process if wasted cooking oil in methanol to yield biodiesel applies alkaline catalyst. Sighting of % K2CO3 and methanol volume to product biodiesel need to be done to get product biodiesel fulfilling standart. Process tranesterification of wasted cooking oil using alkaline catalyst (K2CO3 ) and methanol solvent is done with various % K2CO3 that 0,1%, 1.0%, 1.5% and methanol equel to 15 ml, 20 ml , 25 ml. This research done by the way of mixing wasted cooking oil , methanol and K2CO3 in neck gourd four with operating condition 70 oC during 1 hour and result of his it's dissociated in separatory funnel then is hushed during 24 hour. From the research was received by the optimum condition in the use K2CO3 with concentration 0.5% wt and the volume of methanol 1250 ml. Result of the analysis of physical characteristics and chemistry biodiesel that was received % rendemen 56,07%, density 0,852 gr/ml, pH 7,1, acid number 0,53 of mgKOH, flashpoint 168 oC, % water content 0.03%, viscosity 3.09 cSt and calories value 6374.54 cal/gr. The biodiesel product that have got has been fulfill the Indonesian standard biodiesel quality