PubMed Journals Articles About "NASA Extends Aircraft Maintenance Contract" RSS

18:11 EST 26th November 2015 | BioPortfolio

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Showing "NASA Extends Aircraft Maintenance Contract" PubMed Articles 1–25 of 2,300+

Health providers' perspectives on delivering public health services under the contract service policy in rural China: evidence from Xinjian County.

To effectively provide public health care for rural residents, the Ministry of Health formally unveiled the contract service policy in rural China in April 2013. As the counterpart to family medicine in some developed countries, the contract service established a compact between village doctors and local governments and a service agreement between doctors and their patients. This study is a rare attempt to explore the perspectives of health providers on the contract service policy, and investigate the deman...

Airport take-off noise assessment aimed at identify responsible aircraft classes.

Assessment of aircraft noise is an important task of nowadays airports in order to fight environmental noise pollution given the recent discoveries on the exposure negative effects on human health. Noise monitoring and estimation around airports mostly use aircraft noise signals only for computing statistical indicators and depends on additional data sources so as to determine required inputs such as the aircraft class responsible for noise pollution. In this sense, the noise monitoring and estimation syste...

Evaluation and mechanism for outcomes exploration of providing public health care in contract service in Rural China: a multiple-case study with complex adaptive systems design.

The Chinese government has increased the funding for public health in 2009 and experimentally applied a contract service policy (could be seen as a counterpart to family medicine) in 15 counties to promote public health services in the rural areas in 2013. The contract service aimed to convert village doctors, who had privately practiced for decades, into general practitioners under the government management, and better control the rampant chronic diseases. This study made a rare attempt to assess the effec...

Bacteria that Travel: The Quality of Aircraft Water.

The travelling population is increasing globally year on year. International tourist arrival figures reached 1087 million in 2013 and 1133 million in 2014; of which 53% and 54% respectively accounted for air transport. The water on board aircraft is sourced from surface or ground water; piped to a central filling point and distributed to each aircraft by water service vehicles at the home base or at the destination airport. The purpose of this study was to ascertain the microbial, chemical (pH; Total and Fr...

A New MEMS Gyroscope Used for Single-Channel Damping.

The silicon micromechanical gyroscope, which will be introduced in this paper, represents a novel MEMS gyroscope concept. It is used for the damping of a single-channel control system of rotating aircraft. It differs from common MEMS gyroscopes in that does not have a drive structure, itself, and only has a sense structure. It is installed on a rotating aircraft, and utilizes the aircraft spin to make its sensing element obtain angular momentum. When the aircraft is subjected to an angular rotation, a perio...

Accident-precipitating factors for crashes in turbine-powered general aviation aircraft.

General aviation (14CFR Part 91) accounts for 83% of civil aviation fatalities. While much research has focused on accident causes/pilot demographics in this aviation sector, studies to identify factors leading up to the crash (accident-precipitating factors) are few. Such information could inform on pre-emptive remedial action. With this in mind and considering the paucity of research on turbine-powered aircraft accidents the study objectives were to identify accident-precipitating factors and determine if...

Challenges facing NHS dental contract reforms: Pilot exit.

This article covers the move forwards from pilot to prototype in the National Health Service (NHS) dental contract reform in England. The current status of the pilot and prototype schemes are summarised and some of the challenges for those practices who will be exiting the pilots discussed.

Quality of Life in Patients with NSCLC Receiving Maintenance Therapy.

In the past few years many trials have evaluated the use of maintenance therapy in the treatment of NSCLC stage IV. Both switch as well as continuation maintenance show an improved PFS and overall survival. HRQoL data was only partially published. The aim of this article is to review the published effects of maintenance therapy on HRQoL.


Aircrew members and passengers are exposed to increased rates of cosmic radiation on-board commercial jet aircraft. The annual effective doses of crew members often exceed limits for public, thus it is recommended to monitor them. In general, the doses are estimated via various computer codes and in some countries also verified by measurements. This paper describes a comparison of three cosmic rays detectors, namely of the (a) HAWK Tissue Equivalent Proportional Counter; (b) Liulin semiconductor energy depo...

Correction: Ubiquity and Diversity of Heterotrophic Bacterial nasA Genes in Diverse Marine Environments.

[This corrects the article DOI: 10.1371/journal.pone.0117473.].

Buprenorphine Maintenance vs. Methadone Maintenance or Placebo for Opioid Use Disorder.

Airborne aldehydes in cabin-air of commercial aircraft: Measurement by HPLC with UV absorbance detection of 2,4-dinitrophenylhydrazones.

This paper presents the strategy and results of in-flight measurements of airborne aldehydes during normal operation and reported "smell events" on commercial aircraft. The aldehyde-measurement is a part of a large-scale study on cabin-air quality. The aims of this study were to describe cabin-air quality in general and to detect chemical abnormalities during the so-called "smell-events". Adsorption and derivatization of airborne aldehydes on 2,4-dinitrophenylhydrazine coated silica gel (DNPH-cartridge) was...

Preserving the Social Contract of Health Care-A Call to Action.

News of police brutality toward minorities in urban centers has become so commonplace that it seems to echo indifference over anger. Yet, protesters and other activists across the country, including ones in Baltimore, Maryland, this past May, embody a visceral discontent with the breach of the social contract between law enforcement and the communities they serve. These episodes of violence only fuel the fire of mistrust among underserved, minority groups and are painful reminders of generations of poor soc...

New consultant contract will exclude "opt-out" for weekend working, says government.

Junior doctors will not re-enter contract negotiations with government.

Near-Field Characterization of Methane Emission Variability from a Compressor Station Using a Model Aircraft.

A model aircraft equipped with a custom laser-based, open-path methane sensor was deployed around a natural gas compressor station to quantify the methane leak rate and its variability at a compressor station in the Barnett Shale. The open-path, laser-based sensor provides fast (10 Hz) and precise (0.1 ppmv) measurements of methane in a compact package while the remote control aircraft provides nimble and safe operation around a local source. Emission rates were measured from 22 flights over a one-week peri...

Seven in 10 junior doctors will leave NHS if new contract is imposed, survey finds.

The foam roll as a tool to improve hamstring flexibility.

Although foam rolling is a common myofascial therapy used to increase range of motion (ROM), research is limited on the effectiveness of foam rolling on soft tissue extensibility. The aim of this study was to determine the effect of a four week training period of the foam roll method on hamstring flexibility. Furthermore, the study was designed to compare the effectiveness of the foam roll myofascial release with a conventional contract-relax PNF stretching method and a control group. Forty healthy males (a...

Private firms enlisted to cut waiting lists for tests and surgery in £780m contract.


On the Earth, protection from cosmic radiation is provided by the magnetosphere and the atmosphere, but the radiation exposure increases with increasing altitude. Aircrew and especially space crew members are therefore exposed to an increased level of ionising radiation. Dosimetry onboard aircraft and spacecraft is however complicated by the presence of neutrons and high linear energy transfer particles. Film and thermoluminescent dosimeters, routinely used for ground-based personnel, do not reliably cover ...

SAS doctors career progression survey 2013.

We conducted a national survey of Staff, Associate Specialists and Specialty (SAS) doctors working in sexual health clinics in the UK in 2013 in order to explore their career progression. The aim of the survey was to assess SAS doctors' experience in passing through the thresholds and to gather information about the adherence by SAS doctors and employers to the terms and conditions of service laid out by the new 2008 contract. Out of 185 responders, whom the authors estimate comprise 34% of the total workfo...

The influence of spatial barriers on the ingress/egress movement toward an aircraft seat for persons with reduced mobility: a preliminary study.

Comparison of Isotonic and Hypotonic Intravenous Maintenance Fluids: A Randomized Clinical Trial.

Use of hypotonic intravenous fluids for maintenance requirements is associated with increased risk of hyponatremia that results in morbidity and mortality in children. Clinical trial data comparing isotonic and hypotonic maintenance fluids in nonsurgical hospitalized pediatric patients outside intensive care units are lacking.

Cost Effectiveness of Injectable Extended Release Naltrexone Compared to Methadone Maintenance and Buprenorphine Maintenance Treatment for Opioid Dependence.

The aim of this study was to estimate the cost-effectiveness of injectable extended release naltrexone (XR-NTX) compared to methadone maintenance and buprenorphine maintenance treatment (MMT and BMT respectively) for adult males enrolled in treatment for opioid dependence in the United States from the perspective of state-level addiction treatment payers.

Fault Diagnosis for the Heat Exchanger of the Aircraft Environmental Control System Based on the Strong Tracking Filter.

The aircraft environmental control system (ECS) is a critical aircraft system, which provides the appropriate environmental conditions to ensure the safe transport of air passengers and equipment. The functionality and reliability of ECS have received increasing attention in recent years. The heat exchanger is a particularly significant component of the ECS, because its failure decreases the system's efficiency, which can lead to catastrophic consequences. Fault diagnosis of the heat exchanger is necessary ...