Review on Strain Monitoring of Aircraft Using Optical Fibre Sensor

Structural health monitoring of aircraft assures safety, integrity and reduces cost-related concerns by reducing the number of times maintenance is required. Under aerodynamic loading, aircraft is subjected to strain, in turn causing damage and breakdown. This paper presents a review of experimental works, which focuses on monitoring strain of various parts of aircraft using optical fibre sensors. In addition, this paper presents a discussion and review on different types of optical fibre sensors used for structural health monitoring (SHM) of aircraft. However, the focus of this paper is on fibre bragg gratings (FBGs) for strain monitoring.  Here, FBGs are discussed in detail because they have proved to be most viable and assuring technology in this field. In most cases of strain monitoring, load conditioning and management employs finite element method (FEM). However, more effort is still required in finding the accurate positions in real time where the sensors can be placed in the structure and responds under complex deformation

Tax Incentives for Affordable Housing: The Low Income Housing Tax Credit

The Low Income Housing Tax Credit (LIHTC) represents a novel tax expenditure program that employs “investable” tax credits to spur production of low-income rental housing. While it has grown into the largest source of new affordable housing in the U.S. and its structure is now being replicated in other programs, the LIHTC has also drawn skepticism and calls for its repeal. We provide estimates of tax expenditures under this program and discuss pricing, efficiency, and distributional effects of the program. We also consider the impacts of the recent financial crisis on the LIHTC program and explore implications of resulting policy changes and proposals

Tax Incentives for Affordable Housing: The Low Income Housing Tax Credit

The Low Income Housing Tax Credit (LIHTC) represents a novel tax expenditure program that employs “investable” tax credits to spur production of low-income rental housing. While it has grown into the largest source of new affordable housing in the U.S. and its structure is now being replicated in other programs, the LIHTC has also drawn skepticism and calls for its repeal. We provide estimates of tax expenditures under this program and discuss pricing, efficiency, and distributional effects of the program. We also consider the impacts of the recent financial crisis on the LIHTC program and explore implications of resulting policy changes and proposals.

A prospective study of fetomaternal outcome in patients of pregnancy with jaundice in tertiary care centre

Background: The objective of the study was to study the incidence of jaundice, biochemical alterations, Fetomaternal outcome and various liver pathologies of pregnant patients with jaundice.Methods: This was a prospective observational study conducted in Dr S N Medical College Jodhpur, Rajasthan, India from June 2014 to February 2016. Total fifty pregnant patients with clinical jaundice and prodromal symptoms of hepatitis were included in study.Results: Out of 40,398 deliveries in our hospital, 50 cases of jaundice were identified giving an incidence of 1 in 808 (0.12%). Most common cause of jaundice in pregnancy in our set up was viral hepatitis i.e. 13 cases (26%) were HEV+ and 1 case (2%) came out to be HAV+. Serum LDH levels were raised in 36% of patients. Maximum no. of patients had their serum AST/ALT levels in the range of 100-1000 IU/ml (54%). Out of 52 births (2 twins) 34 were live births (65.38%) and rest were either SB or IUFDs. Most common causes of mortality in patients were Septicemia, MODS, DIC (25%) followed by HELLP syndrome and HEV+ viral hepatitis equally (16.67%). Maximum no. of patients with jaundice suffered from postpartum haemorrage and septicemia (60%).Conclusions: Most common cause of jaundice in pregnancy in our study was viral hepatitis. Public awareness about the various routs of transmission of different types of infective hepatitis, improving sanitary conditions and habits, health education of preventive measures can help in reducing the burden of jaundice in pregnancy

Economic evaluation of HIV pre-exposure prophylaxis among men-who-have-sex-with-men in England in 2016.

Clinical effectiveness of pre-exposure prophylaxis (PrEP) for preventing HIV acquisition in men who have sex with men (MSM) at high HIV risk is established. A static decision analytical model was constructed to inform policy prioritisation in England around cost-effectiveness and budgetary impact of a PrEP programme covering 5,000 MSM during an initial high-risk period. National genitourinary medicine clinic surveillance data informed key HIV risk assumptions. Pragmatic large-scale implementation scenarios were explored. At 86% effectiveness, PrEP given to 5,000 MSM at 3.3 per 100 person-years annual HIV incidence, assuming risk compensation (20% HIV incidence increase), averted 118 HIV infections over remaining lifetimes and was cost saving. Lower effectiveness (64%) gave an incremental cost-effectiveness ratio of + GBP 23,500 (EUR 32,000) per quality-adjusted life year (QALY) gained. Investment of GBP 26.9 million (EUR 36.6 million) in year-1 breaks even anywhere from year-23 (86% effectiveness) to year-33 (64% effectiveness). PrEP cost-effectiveness was highly sensitive to year-1 HIV incidence, PrEP adherence/effectiveness, and antiretroviral drug costs. There is much uncertainty around HIV incidence in those given PrEP and adherence/effectiveness, especially under programme scale-up. Substantially reduced PrEP drug costs are needed to give the necessary assurance of cost-effectiveness, and for an affordable public health programme of sufficient size

A scoping review of media campaign strategies used to reach populations living with or at high risk for Hepatitis C in high income countries to inform future national campaigns in the United Kingdom

BACKGROUND: With the advent of direct acting antivirals, the World Health Organisation proposed eliminating Hepatitis C as a public health threat by 2030. To achieve this, countries need to diagnose, engage in care and treat their undiagnosed populations. This will require sensitisation campaigns. However previous media campaigns have had mixed impact. We conducted a scoping review to identify and understand the impact of previous Hepatitis C media campaigns. These findings could inform the delivery of future campaigns. METHODS: We searched five electronic databases for published literature on media campaigns conducted for Hepatitis C awareness, testing, and treatment in Organisation for Economic Co-operation and Development (OECD) countries since 2010. Two independent reviewers screened citations for inclusion. Additionally, we spoke to stakeholders in the Hepatitis C field in the UK and conducted a Google search to identify any unpublished literature. A quantitative synthesis was conducted to identify targeted populations, strategies and media used, aims and impact of the campaigns. RESULTS: A title and year of publication screening of 3815 citations resulted in 113 papers that had a full abstract screen. This left 50 full-text papers, 18 were included of which 9 (50%) were from Europe. 5 (27.8%) of campaigns targeted minority ethnicities, and 9 (50%) aimed to increase testing. A Google search identified 6 grey literature sources. Most campaigns were not evaluated for impact. Discussions with stakeholders identified several barriers to successful campaigns including lack of targeted messaging, stigmatising or accusatory messaging, and short-lived or intermittent campaign strategies. CONCLUSION: Future campaigns will likely need to be multifaceted and have multiple tailored interventions. Campaigns will need to be sizeable and robust, integrated into health systems and viewed as an ongoing service rather than one-offs

The impact of economic crises on communicable disease transmission and control: a systematic review of the evidence.

There is concern among public health professionals that the current economic downturn, initiated by the financial crisis that started in 2007, could precipitate the transmission of infectious diseases while also limiting capacity for control. Although studies have reviewed the potential effects of economic downturns on overall health, to our knowledge such an analysis has yet to be done focusing on infectious diseases. We performed a systematic literature review of studies examining changes in infectious disease burden subsequent to periods of crisis. The review identified 230 studies of which 37 met our inclusion criteria. Of these, 30 found evidence of worse infectious disease outcomes during recession, often resulting from higher rates of infectious contact under poorer living circumstances, worsened access to therapy, or poorer retention in treatment. The remaining studies found either reductions in infectious disease or no significant effect. Using the paradigm of the "SIR" (susceptible-infected-recovered) model of infectious disease transmission, we examined the implications of these findings for infectious disease transmission and control. Key susceptible groups include infants and the elderly. We identified certain high-risk groups, including migrants, homeless persons, and prison populations, as particularly vulnerable conduits of epidemics during situations of economic duress. We also observed that the long-term impacts of crises on infectious disease are not inevitable: considerable evidence suggests that the magnitude of effect depends critically on budgetary responses by governments. Like other emergencies and natural disasters, preparedness for financial crises should include consideration of consequences for communicable disease control