Sentences with phrase «substantial variation by»

Fewer than half of U.S. schools have full - time nurses, with substantial variation by region, according to the data.

Not exact matches

A lot of people say so based on myths and anecdotes, but an authoritative background study for the Mowat Centre Report on EI by Day and Winer found that «there is no evidence in the empirical literature that regional variation in the generosity of the employment insurance system has altered internal migration patterns in Canada in a substantial manner.»

Examples of these risks, uncertainties and other factors include, but are not limited to the impact of: adverse general economic and related factors, such as fluctuating or increasing levels of unemployment, underemployment and the volatility of fuel prices, declines in the securities and real estate markets, and perceptions of these conditions that decrease the level of disposable income of consumers or consumer confidence; adverse events impacting the security of travel, such as terrorist acts, armed conflict and threats thereof, acts of piracy, and other international events; the risks and increased costs associated with operating internationally; our expansion into and investments in new markets; breaches in data security or other disturbances to our information technology and other networks; the spread of epidemics and viral outbreaks; adverse incidents involving cruise ships; changes in fuel prices and / or other cruise operating costs; any impairment of our tradenames or goodwill; our hedging strategies; our inability to obtain adequate insurance coverage; our substantial indebtedness, including the ability to raise additional capital to fund our operations, and to generate the necessary amount of cash to service our existing debt; restrictions in the agreements governing our indebtedness that limit our flexibility in operating our business; the significant portion of our assets pledged as collateral under our existing debt agreements and the ability of our creditors to accelerate the repayment of our indebtedness; volatility and disruptions in the global credit and financial markets, which may adversely affect our ability to borrow and could increase our counterparty credit risks, including those under our credit facilities, derivatives, contingent obligations, insurance contracts and new ship progress payment guarantees; fluctuations in foreign currency exchange rates; overcapacity in key markets or globally; our inability to recruit or retain qualified personnel or the loss of key personnel; future changes relating to how external distribution channels sell and market our cruises; our reliance on third parties to provide hotel management services to certain ships and certain other services; delays in our shipbuilding program and ship repairs, maintenance and refurbishments; future increases in the price of, or major changes or reduction in, commercial airline services; seasonal variations in passenger fare rates and occupancy levels at different times of the year; our ability to keep pace with developments in technology; amendments to our collective bargaining agreements for crew members and other employee relation issues; the continued availability of attractive port destinations; pending or threatened litigation, investigations and enforcement actions; changes involving the tax and environmental regulatory regimes in which we operate; and other factors set forth under «Risk Factors» in our most recently filed Annual Report on Form 10 - K and subsequent filings by the Company with the Securities and Exchange Commission.

Many species show substantial variation in organ size and shape that could be produced by regional differences in scaling.

Ca seasonal variation follows the behaviour expected from impact vaporization by interplanetary dust, due to Mercury's substantial radial excursions (heliocentric distances between 0.306 AU at perihelion and 0.465 AU at aphelion).

Currently, primary hepatocytes are the most common cell model, but their utility is fundamentally constrained by the substantial variation between donors and the finite number of cells that are harvestable from each donor.

Montana is the fourth largest state (by land area) in the US and contains substantial topographic variation.

This same study revealed large inter-locus variation in cline width and cline center among some loci, consistent with substantial variation in patterns and levels of introgression as indicated by previous work [21], [24]--[26].

According to Bhagat, one of the difficulties in implementing an inquiry - based teaching approach is that there is substantial variation in what educators mean by inquiry - based teaching, and a lack of understanding of the skills required to help students generate their own inquiries and guide, rather than direct the investigation that follows.

First, there is substantial variation in teacher quality as measured by the

An initial review of the 1201 (a) MOE certifications revealed that that there is substantial variation among the States in the way they calculated and certified to their planned level of effort regarding State funding for the types of projects that are funded by the Recovery Act for the statutory period of February 17, 2009 through September 30, 2010.

Apparently, certain traits are significantly more or less appealing to adopters as there is substantial variation in adoption rates by breed type.

I would not dispute 100 - 300 year oscillations as a possibility, but my reading of the climate records reveals no evidence for a significant role for such oscillations — or at least, no role substantial enough on a global scale to have created a discernible signal outside of changes occasioned by solar variations, volcanism, and other known entities (changes on a regional scale are a very different matter and may have involved such oscillations).

Nevertheless, k is a useful concept since for monotonically increasing forcing and not too near the beginning of an integration (when mixed layer effects have an influence), κ does not vary with time nearly as fast as ΔT so that a substantial part of the time variation of ΔF can be explained by the time variation ΔT.

Comparisons with other stars, that resemble the Sun in mass and age, indicate that the Sun could undergo more substantial variations in brightness than those observed by satellites so far.