Sentences with phrase «occur over time lead»

Not exact matches

«This dust - formation process can occur continuously for years, with the dust slowly building up over time, which aligns with astronomer's observations of varying amounts of dust surrounding the sites of stellar explosions,» added lead author Liu.

«While methane and carbon dioxide emissions following thaw lead to immediate radiative warming,» the authors write, «carbon uptake in peat - rich sediments occurs over millennial time scales.»

«We've been targeting traditional risk factors in public health campaigns for many years,» said Susan Cheng, M.D., M.P.H., study lead author and Assistant Professor of Medicine at Brigham and Women's Hospital in Boston, Mass. «We wanted to take a look at how well we've been doing over time at keeping these risk factors from causing heart and vascular disease — both by preventing the risks from occurring and by minimizing their effects when they do occur.»

Over time, hyperinsulinemia can occur, which is where levels of insulin are up for so long that eventually the body's cells become resistant to its effects — leading to insulin resistance.

The stress response activates the flight - or - flight reaction, which over time can lead to impaired detoxification of toxins, hormones, and amines (e.g. histamine and thyramine that naturally occur in some aged and preserved foods like cheese, wine, and fish), all of which, when built - up or imbalanced in the body, can trigger a migraine.

Digestive health: As reported in several issues of the Journal of the American Medical Association, digestion is the area where the most probiotics studies have been performed, with the strongest evidence to date occurring in the treatment of antibiotic - associated diarrhea.1 The use of antibiotics to clear an infection, especially over a long period of time, can destroy many of the natural bacteria in the gut, leading to an imbalance in the gut flora, favoring «bad» bacteria and allowing them to thrive.

According to Dan Olweus, a psychology professor at Norway's University of Bergen and one of the world's leading experts on bullies and their victims, bullying is an accumulation of negative actions — occurring repeatedly and over time — directed toward one student by another student or students.

High - quality teaching occurs when teachers come to the classroom with a toolkit of knowledge and skills that they employ based on a set of effective practices and that lead, over time, to student learning.

Results indicated professional development based in reform delivery methods (not workshops or short trainings), occurred over time with more than 25 hours of content involved groups of teachers learning together, was focused on the subject taught by the teacher, required teachers to be active participants in their learning, and cohorent, i.e., aligned with standards and teacher goals, was more likely to lead to increases in teacher knowledge and changes in practice.

These changes occur gradually over time and can lead to many secondary problems including abrupt loss of appetite and infections.

Most cases of heavy metal toxicity in pets are caused by lead, and exposure usually occurs over an extended period of time.

There are of course other causes for other changes that have occurred, including suspected asteroid impacts, changes in volcanism over the eons which can lead to the buildup or reduction of greenhouse gases over long time scales, etc..

Changes in this balance over time lead to the changes in greenhouse gas concentrations that have been observed to occur on geological (millions of year) timescales.

My work, over the period 1992 to the present, has led to my belief that much of climate change (by whatever parameter or measure one uses) tends to occur very largely as step (or at least very rapid) changes, often over short time periods, like a few months or less.

As had happened many times over the course of history, mass migrations occurred as cold led to crop failures.

There are specific things that occur throughout the relationship that lead to increased dissatisfaction over time.