From Optically Pumped Molecular Lasers to Multi-Frequency Beam Splitters

AbstactIn this paper, the two laser schemes of multi-frequency optically pumped molecular lasers are described. Moleculargas lasers based on optical pumping potentially produce separate laser beams with various different frequencies. Such lasers canserve as frequency splitter devices that will find a wide range of applications for example, in chemical sensors andcommunications.

Peripartum Hysterectomy

Peripartum hysterectomy is uncommon in modern obstetrics. It is mostly performed as an emergency procedure to control life-threatening haemorrhage. Despite recent technical advances in medicine, it is associated with high rates of morbidity and mortality. Peripartum hysterectomy constitutes a life-saving procedure

Developing a Protocol for an Environmentally Preferable Purchasing Plus (Epp+) Program at Nasa Glenn Research Center

EPP+ or Environmentally Preferable Purchasing Plus is a Environmentally Preferable Purchasing program with incorporated a unique Life Cycle Assessment (LCA) scoring system which implemented at NASA, Glenn Research Center. A protocol has been developed to aid in selecting among products based on principles of Environmentally Preferable Purchasing (EPP) and Life Cycle Assessment (LCA). The protocol has been developed for use at NASA Glenn Research Center (GRC) but is intended to benefit anyone wishing to make sustainable purchasing decision. The protocol was designed as a web-based application which evaluates the life cycle factors, affirmative procurements, price, and performance of products that impact or benefit the environment and human health. There were 2 parts in the development of the EPP+ protocol. The first part was the development of product scoring system guidelines. All products are to be scored using a numerical rating system for each value. A numeric-based rating system has been developed by applying the priorities of the environmental protection and management policies for the purchase of products for GRC. These rating are then multiplied by a weighting factor which is a numeric value between 0 and 1.0. During the product evaluation process, weighting factors are again set according to the importance and priorities set by the Environmental Management Office (EMO). Second part was the development of the EPP+ computer software or protocol (ASP.net format). This protocol produces a score for a product based on a series of ratings and weighting factors given by the expert user. Following the same sequence of operation, various products can be scored and compared, and a list can be prepared for the products that qualify as environmentally preferable products. The lists of products are intended to be offered to contractors and other GRC personnel for their applications. Since the product score is a numeric value, it is easy for a non-expert person to understand and compare with some other products, rath

PERAN KOMITE SEKOLAH DALAM MANAJEMEN BERBASIS SEKOLAH DI SD ISLAM TERPADU BUAH HATI KABUPATEN PEMALANG

The purpose of this research is to gain an overview of the role of the school committee in the implementation of School Based Management in Elementary School Buah Hati District of Pemalang. The focus of research is the role of the school committee in the implementation of School Based Management with sub focus the role of the school committee as a conduit of consideration, the school committee as a support, the school committee as a controller, the school committee as a mediator in Elementary School Buah Hati District of Pemalang.Results showed the role of communities in School Based Management has a strategic role means that the school committee acts as a conduit of consideration in the form of ideas, input, aspirations, involvement in school programs, serve as a support in terms of funding, supporting school activities, imaging either to the surrounding community, the role of controlling which act as watchdogs of the budget in the form of reports, supervisory activities, acting as a liaison between multiple mediators that school with parents, education authorities and the public. Elementary School Buah Hati has a principle of independence, accountability, transparency, and strong partnerships that school that provides easy access to information to the school community and the public on what is being done with school by utilizing various communication channels. Constraint of the school committee in the implementation of school-based management is the lack of communication between the school and the school committee because of lack of time owned by the school committee.

A correlation analysis of parental expectations, mentoring, and gender socialization on women\u27s self-efficacy

This study investigated social influences believed to have an impact on the development of women\u27s self-efficacy. The independent variables examined included parental expectations, gender role socialization, and mentoring. A questionnaire with both ordinal and nominal questions was administered to 196 female undergraduates attending California State University, San Bernardino and California State Polytechnic University, Pomona. The sample was predominantly Caucasian (35,2 percent) and Hispanic (33.7 percent), with a median age of 20. Participants answered 57 questions, consisting of demographic questions, measures of self-efficacy and three independent variables. Pearson r analysis found positive significant correlations between self-efficacy and all three variables. The implications for social work and recommendations for social work policy, practice, and research are discussed

Emerging data sources and advanced microsimulation in transport modelling

Transport modelling is an essential tool for policy makers to make informed transport planning decisions for the wellbeing of the society. However, most strategic transport models do not accurately incorporate the dynamics of population and households and their interactions, resulting in inaccurate forecasts of travel and land use demands. While it is highly crucial that strategic transport models provide accurate long-term forecasts that are vital for the appraisal of large transport infrastructure projects, short-term and medium-term forecasts are also integral for enhancing the efficiency of transport systems. Furthermore, in the modern, fast-paced world, emerging data sources are integral in both transport research and practice. For instance, data collected from smartphone travel surveys and electronic ticketing systems can be used to derive deep insights into people’s travel behaviour. Therefore, this thesis is set out to investigate how population evolution modelling can be improved in transport models, and also how emerging data sources can be leveraged to fill existing knowledge gaps. This thesis focuses on two main themes: (1) to explore new opportunities from emerging technologies and data sources and (2) to develop a dynamic microsimulation model that can provide a more accurate population input for a transport demand model and also to enhance the model development process. Using transit smart card data, The first main chapter explores the impacts of transit ridership and reliability on residential property values in Brisbane, Australia. Three frequently used spatial regression techniques in hedonic studies are used along with a simple linear regression model. The second main chapter presents the first analysis on how social media offers a cost effective means to recruit and engage smartphone travel survey participants. On top of that, recommendations on recruitment, marketing, sample representativeness, incentivisation, and deployment of the study are discussed. The third main chapter introduces an open source dynamic microsimulation toolbox for integrated urban modelling. This toolbox allows microsimulation models to be more easily developed and enables several well-known modelling packages in R to be integrated with the models. Finally, the last main chapter presents a demographic microsimulation model, built with the toolbox, that not only simulates the lifecycle of individuals but also the integration of new migrants into the population using a novel household alignment method

Extensional viscosity of copper nanowire suspensions in an aqueous polymer solution

Suspensions of copper nanowires are emerging as new electronic inks for next-generation flexible electronics. Using a novel surface acoustic wave driven extensional flow technique we are able to perform currently lacking analysis of these suspensions and their complex buffer. We observe extensional viscosities from 3 mPa$\cdot$s (1 mPa$\cdot$s shear viscosity) to 37.2 Pa$\cdot$s via changes in the suspension concentration, thus capturing low viscosities that have been historically very challenging to measure. These changes equate to an increase in the relative extensional viscosity of nearly 12,200 times at a volume fraction of just 0.027. We also find that interactions between the wires and the necessary polymer additive affect the rheology strongly. Polymer-induced elasticity shows a reduction as the buffer relaxation time falls from 819 to 59 $\mu$s above a critical particle concentration. The results and technique presented here should aid in the future formulation of these promising nanowire suspensions and their efficient application as inks and coatings.Comment: 7 pages, 5 figures, under review for Soft Matter RS