Results 111 to 120 of about 24,698,747 (249)
环境与职业医学BackgroundThe Qingcaosha Reservoir is facing issues of algal blooms and eutrophication, and the resulting increase in the level of chlorination disinfection by-products in the water has been a major concern.
Yangyang REN +8 more
doaj +1 more source
Custom v. Standardized Risk Models [PDF]
Risks 3(2) (2015) 112-138, 2014 We discuss when and why custom multi-factor risk models are warranted and give source code for computing some risk factors. Pension/mutual funds do not require customization but standardization. However, using standardized risk models in quant trading with much shorter holding horizons is suboptimal: 1) longer horizon risk factors (value, growth, etc.)
arxiv
Journal of Business Economics and Management, 2006 The paper deals with a problem of solar and geomagnetic activity as global risk factors in financial risk management. The history of the idea of solar – earth relations is rather long (Hershel, 1804; Jevans, 1870 – Theory of Solar cycles, Chizhevsky, 1920 ‐ Theory of Heliotaraxy; Collins, 1965 etc.), but financial risk management does not use these ...
openaire +4 more sources
Risk Factors for Young-Onset Dementia in the UK Biobank [PDF]
Importance There is limited information on modifiable risk factors for young-onset dementia (YOD).Objective To examine factors that are associated with the incidence of YOD.Design, Setting, and Participants This prospective cohort study used data from ...
de Vugt, Marjolein +7 more
core +1 more source
Alzheimer’s disease: risk factors and potentially protective measures
Journal of Biomedical Sciences, 2019 Alzheimer’s disease (AD) is the most common type of dementia and typically manifests through a progressive loss of episodic memory and cognitive function, subsequently causing language and visuospatial skills deficiencies, which are often accompanied by ...
M. Silva +5 more
semanticscholar +1 more source
Research progress on ultra-processed foods consumption and its association with health
环境与职业医学With the rapid progress of industrialization and commercialization, the sales and population intake of ultra-processed foods (UPFs) are constantly increasing globally. High UPFs intake is associated with various health issues.
Jiaqian ZHONG +4 more
doaj +1 more source
Ovarian cancer in the world: epidemiology and risk factors
International Journal of Women's Health, 2019 Aim: Ovarian cancer is one of the most common gynecologic cancers that has the highest mortality rate. Considering the fact that knowledge on the incidence, mortality of ovarian cancer, as well as its risk factors is necessary for planning and preventing
Z. Momenimovahed +3 more
semanticscholar +1 more source
Multiple risk factor dependence structures: Distributional properties [PDF]
arXiv, 2016 We introduce a class of dependence structures, that we call the Multiple Risk Factor (MRF) dependence structures. On the one hand, the new constructions extend the popular CreditRisk+ approach, and as such they formally describe default risk portfolios exposed to an arbitrary number of fatal risk factors with conditionally exponential and dependent ...
arxiv
Risk Factors for the Development of Psoriasis
International Journal of Molecular Sciences, 2019 Psoriasis is an immune-mediated genetic skin disease. The underlying pathomechanisms involve complex interaction between the innate and adaptive immune system.
K. Kamiya +4 more
semanticscholar +1 more source