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https://www.readbyqxmd.com/read/28430786/repayment-policy-for-multiple-loans
#1
Yasmin Agueda Rios-Solis, Mario Alberto Saucedo-Espinosa, Gabriel Arturo Caballero-Robledo
The Repayment Policy for Multiple Loans is about a given set of loans and a monthly incoming cash flow: what is the best way to allocate the monthly income to repay such loans? In this article, we close the almost 20-year-old open question about how to model the repayment policy for multiple loans problem together with its computational complexity. Thus, we propose a mixed integer linear programming model that establishes an optimal repayment schedule by minimizing the total amount of cash required to repay the loans...
2017: PloS One
https://www.readbyqxmd.com/read/28428561/a-general-framework-for-predicting-delayed-responses-of-ecological-communities-to-habitat-loss
#2
Youhua Chen, Tsung-Jen Shen
Although biodiversity crisis at different spatial scales has been well recognised, the phenomena of extinction debt and immigration credit at a crossing-scale context are, at best, unclear. Based on two community patterns, regional species abundance distribution (SAD) and spatial abundance distribution (SAAD), Kitzes and Harte (2015) presented a macroecological framework for predicting post-disturbance delayed extinction patterns in the entire ecological community. In this study, we further expand this basic framework to predict diverse time-lagged effects of habitat destruction on local communities...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28418728/prevalence-and-predictors-of-food-insecurity-among-people-living-with-hiv-enrolled-in-antiretroviral-therapy-and-livelihood-programs-in-two-rural-zambian-hospitals
#3
Rainier Masa, Gina Chowa, Victor Nyirenda
The objective of this study was to examine the prevalence and predictors of food insecurity among people living with HIV (PLHIV) in two rural communities in Zambia. A cross-sectional sample of 101 PLHIV was surveyed using the Household Food Insecurity Access Scale. In multivariable linear regression models, income, household possessions, and perceived coping strategies were significantly associated with decreased food insecurity. Debt and perceived mental distress were significantly associated with increased food insecurity...
April 18, 2017: Ecology of Food and Nutrition
https://www.readbyqxmd.com/read/28416655/economic-inequality-increases-risk-taking
#4
B Keith Payne, Jazmin L Brown-Iannuzzi, Jason W Hannay
Rising income inequality is a global trend. Increased income inequality has been associated with higher rates of crime, greater consumer debt, and poorer health outcomes. The mechanisms linking inequality to poor outcomes among individuals are poorly understood. This research tested a behavioral account linking inequality to individual decision making. In three experiments (n = 811), we found that higher inequality in the outcomes of an economic game led participants to take greater risks to try to achieve higher outcomes...
April 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28406786/communication-with-physicians-about-health-care-costs-survey-of-an-insured-population
#5
Nora B Henrikson, Eva Chang, Kevin Ulrich, Deborah King, Melissa L Anderson
CONTEXT: Health care costs have increasingly shifted to patients, and financial distress caused by medical care has increased. Patients may wish to discuss costs with their clinicians. OBJECTIVE: Describe patient preferences for communication about cost in the clinical setting. DESIGN: Cross-sectional, self-administered survey of a stratified random sample of the population insured in an integrated health care system in Washington State. Our sampling frame was the entire membership aged 21 years or older...
2017: Permanente Journal
https://www.readbyqxmd.com/read/28405396/multimodal-communication-in-courting-fiddler-crabs-reveals-male-performance-capacities
#6
Sophie L Mowles, Michael Jennions, Patricia R Y Backwell
Courting males often perform different behavioural displays that demonstrate aspects of their quality. Male fiddler crabs, Uca sp., are well known for their repetitive claw-waving display during courtship. However, in some species, males produce an additional signal by rapidly stridulating their claw, creating a 'drumming' vibrational signal through the substrate as a female approaches, and even continue to drum once inside their burrow. Here, we show that the switch from waving to drumming might provide additional information to the female about the quality of a male, and the properties of his burrow (multiple message hypothesis)...
March 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28402825/inequality-and-the-health-care-system-in-the-usa
#7
REVIEW
Samuel L Dickman, David U Himmelstein, Steffie Woolhandler
Widening economic inequality in the USA has been accompanied by increasing disparities in health outcomes. The life expectancy of the wealthiest Americans now exceeds that of the poorest by 10-15 years. This report, part of a Series on health and inequality in the USA, focuses on how the health-care system, which could reduce income-based disparities in health, instead often exacerbates them. Other articles in this Series address population health inequalities, and the health effects of racism, mass incarceration, and the Affordable Care Act (ACA)...
April 8, 2017: Lancet
https://www.readbyqxmd.com/read/28396459/opinion-and-special-articles-loan-forgiveness-options-for-young-neurologists-current-landscape-and-practice-implications
#8
Benjamin P George, E Ray Dorsey, Justin A Grischkan
Increasing education debt has led to the availability of a variety of loan forgiveness options including the Department of Education's Public Service Loan Forgiveness (PSLF) program. This article discusses the current landscape of loan forgiveness options including trends in PSLF for rising neurology trainees, and implications for choices in specialization, employment, practice location, and the pursuit of an academic career. We further provide guidance on how to navigate the various loan forgiveness options that neurology residents and fellows may consider...
April 11, 2017: Neurology
https://www.readbyqxmd.com/read/28396305/a-mixed-methods-study-using-a-nonclinical-sample-to-measure-feasibility-of-ostrich-community-a-web-based-cognitive-behavioral-therapy-program-for-individuals-with-debt-and-associated-stress
#9
Dawn Smail, Sarah Elison, Linda Dubrow-Marshall, Catherine Thompson
BACKGROUND: There are increasing concerns about the health and well-being of individuals facing financial troubles. For instance, in the United Kingdom, the relationship between debt and mental health difficulties is becoming more evident due to the economic downturn and welfare reform. Access to debt counseling services is limited and individuals may be reluctant to access services due to stigma. In addition, most of these services may not be appropriately resourced to address the psychological impact of debt...
April 10, 2017: JMIR Mental Health
https://www.readbyqxmd.com/read/28395197/sustained-impairment-of-respiratory-function-and-swim-performance-following-acute-oil-exposure-in-a-coastal-marine-fish
#10
J L Johansen, A J Esbaugh
Acute exposure to crude oil polycyclic aromatic hydrocarbons (PAH) can severely impair cardiorespiratory function and swim performance of larval fish; however, the effects of acute oil exposure on later life stages and the capacity for subsequent recovery is less clear. Red drum (Sciaenops ocellatus) is an economically important apex predator native to the Gulf of Mexico, which was directly exposed to the 2010 Deep Water Horizon (DWH) oil spill. Here we examine impact and recovery of young adult red drum from exposure to concentrations of 0, 4...
April 6, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28394867/cured-into-destitution-catastrophic-health-expenditure-risk-among-uninsured-trauma-patients-in-the-united-states
#11
John W Scott, Nakul P Raykar, John A Rose, Thomas C Tsai, Cheryl K Zogg, Adil H Haider, Ali Salim, John G Meara, Mark G Shrime
OBJECTIVE: To characterize the economic hardship for uninsured patients admitted for trauma using catastrophic health expenditure (CHE) risk. BACKGROUND: Medical debts are the greatest cause of bankruptcies in the United States. Injuries are often unpredictable, expensive to treat, and disproportionally affect uninsured patients. Current measures of economic hardship are insufficient and exclude those at greatest risk. METHODS: We performed a retrospective review, using data from the 2007-2011 Nationwide Inpatient Samples of all uninsured nonelderly adults (18-64 yrs) admitted with primary diagnoses of trauma...
April 7, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28391712/leadership-development-practices-and-hospital-financial-outcomes
#12
Daniel Crowe, Andrew N Garman, Chien-Ching Li, Jeff Helton, Matthew M Anderson, Peter Butler
Affordable Care Act legislation is requiring leaders in US health systems to adapt to new and very different approaches to improving operating performance. Research from other industries suggests leadership development can be a helpful component of organizational change strategies; however, there is currently very little healthcare-specific research available to guide design and deployment. The goal of this exploratory study is to examine potential relationships between specific leadership development practices and health system financial outcomes...
January 1, 2017: Health Services Management Research
https://www.readbyqxmd.com/read/28390097/preponderance-of-clonality-triggers-loss-of-sex-in-bulbophyllum-bicolor-an-obligately-outcrossing-epiphytic-orchid
#13
Ai-Qun Hu, Stephan W Gale, Pankaj Kumar, Richard M K Saunders, Mei Sun, Gunter A Fischer
Vegetative propagation (clonal growth) conveys several evolutionary advantages that positively affect life history fitness and is a widespread phenomenon among angiosperms that also reproduce sexually. However, a bias towards clonality can interfere with sexual reproduction and lead to sexual extinction, although a dearth of effective genetic tools and mathematical models for clonal plants has hampered assessment of these impacts. Using the endangered tropical epiphytic or lithophytic orchid Bulbophyllum bicolor as a model, we integrated an examination of breeding system with 12 microsatellite loci and models valid for clonal species to test for the 'loss of sex' and infer likely consequences for long-term reproductive dynamics...
April 8, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28390081/symbiodinium-mitigate-the-combined-effects-of-hypoxia-and-acidification-on-a-non-calcifying-cnidarian
#14
Shannon G Klein, Kylie A Pitt, Matthew R Nitschke, Samantha Goyen, David T Welsh, David J Suggett, Anthony R Carroll
Anthropogenic nutrient inputs enhance microbial respiration within many coastal ecosystems, driving concurrent hypoxia and acidification. During photosynthesis, Symbiodinium spp., the microalgal endosymbionts of cnidarians and other marine phyla, produce O2 and assimilate CO2 , and thus potentially mitigate the exposure of the host to these stresses. However, such a role for Symbiodinium remains untested for non-calcifying cnidarians. We therefore contrasted the fitness of symbiotic and aposymbiotic polyps of a model host jellyfish (Cassiopea sp...
April 8, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28379984/potential-trajectories-of-the-upcoming-forest-trading-mechanism-in-par%C3%A3-state-brazilian-amazon
#15
Brenda Brito
In 2012, the Brazilian government revised the federal Forest Code that governs the use of forest resources on rural properties. The revisions included a forest trading mechanism whereby landowners who deforested more than what is legally allowed before 2008 could absolve their deforestation "debts" by purchasing Environmental Reserve Quotas (CRA) from landowners who conserved more forest than legally required. CRA holds promise as a tool to complement command-and-control initiatives to reduce deforestation and incentivize restoration...
2017: PloS One
https://www.readbyqxmd.com/read/28379957/prioritising-surveillance-for-alien-organisms-transported-as-stowaways-on-ships-travelling-to-south-africa
#16
Katelyn T Faulkner, Mark P Robertson, Mathieu Rouget, John R U Wilson
The global shipping network facilitates the transportation and introduction of marine and terrestrial organisms to regions where they are not native, and some of these organisms become invasive. South Africa was used as a case study to evaluate the potential for shipping to contribute to the introduction and establishment of marine and terrestrial alien species (i.e. establishment debt) and to assess how this varies across shipping routes and seasons. As a proxy for the number of species introduced (i.e. 'colonisation pressure') shipping movement data were used to determine, for each season, the number of ships that visited South African ports from foreign ports and the number of days travelled between ports...
2017: PloS One
https://www.readbyqxmd.com/read/28376217/financial-hardships-experienced-by-cancer-survivors-a-systematic-review
#17
Cheryl K Altice, Matthew P Banegas, Reginald D Tucker-Seeley, K Robin Yabroff
Background: With rising cancer care costs, including high-priced cancer drugs, financial hardship is increasingly documented among cancer survivors in the United States; research findings have not been synthesized. Methods: We conducted a systematic review of articles published between 1990 and 2015 describing the financial hardship experienced by cancer survivors using PubMed, Embase, Scopus, and CINAHL databases. We categorized measures of financial hardship into: material conditions (eg, out-of-pocket costs, productivity loss, medical debt, or bankruptcy), psychological responses (eg, distress or worry), and coping behaviors (eg, skipped medications)...
February 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28370771/toll-like-receptor-variation-in-the-bottlenecked-population-of-the-seychelles-warbler-computer-simulations-see-the-ghost-of-selection-past-and-quantify-the-drift-debt
#18
Danielle Gilroy, Karl Phillips, David S Richardson, Cock van Oosterhout
Balancing selection can maintain immunogenetic variation within host populations, but detecting its signal in a post-bottlenecked population is challenging due to the potentially overriding effects of drift. Toll-like receptor genes (TLRs) play a fundamental role in vertebrate immune defence and are predicted to be under balancing selection. We previously characterised variation at TLR loci in the Seychelles warbler (Acrocephalus sechellensis), an endemic passerine that has undergone a historical bottleneck...
March 28, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/28364843/children-with-disabilities-and-trajectories-of-parents-unsecured-debt-across-the-life-course
#19
Jason N Houle, Lawrence Berger
Prior research shows that having a child with a disability is economically burdensome for parents but we know little about whether this burden extends to unsecured debt. In this study, we examine the link between having a child with a disability that manifests between birth and age 4 and subsequent trajectories in unsecured household debt. We have three key findings. First, we find that having a child with an early-life disabling health condition is associated with a substantial increase in indebtedness in the years immediately following the child's birth, and that this association persists net of a range of potential confounders...
May 2017: Social Science Research
https://www.readbyqxmd.com/read/28357153/the-demand-for-disaster-microinsurance-for-small-businesses-in-urban-slums-the-results-of-surveys-in-three-indian-cities
#20
Ronak Patel, Garrett Walker, Mihir Bhatt, Vishal Pathak
BACKGROUND: Small informal businesses make up the core markets for many poor urban communities, providing essential goods, services, and livelihoods. Many of these communities and businesses exist in hazardous locations. In most cases, these business owners do not have access to proper coping mechanisms including risk transfer and lack resilience to shocks. Access to risk-transfer in the form of insurance for these small businesses is extremely limited. This demand survey is the first phase of an intervention to test disaster microinsurance for these businesses...
March 1, 2017: PLoS Currents
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