Sentences with phrase «low lead concentrations»

Well - known techniques that took place in Flint include preflushing water from taps the night before sampling and using small - mouthed bottles, which artificially lowers lead concentrations in samples, as well as failing to identify and test homes known to have sources of lead in their plumbing from lead services lines or older brass components that contain significant amounts of lead.

Not exact matches

Actual results, including with respect to our targets and prospects, could differ materially due to a number of factors, including the risk that we may not obtain sufficient orders to achieve our targeted revenues; price competition in key markets; the risk that we or our channel partners are not able to develop and expand customer bases and accurately anticipate demand from end customers, which can result in increased inventory and reduced orders as we experience wide fluctuations in supply and demand; the risk that our commercial Lighting Products results will continue to suffer if new issues arise regarding issues related to product quality for this business; the risk that we may experience production difficulties that preclude us from shipping sufficient quantities to meet customer orders or that result in higher production costs and lower margins; our ability to lower costs; the risk that our results will suffer if we are unable to balance fluctuations in customer demand and capacity, including bringing on additional capacity on a timely basis to meet customer demand; the risk that longer manufacturing lead times may cause customers to fulfill their orders with a competitor's products instead; the risk that the economic and political uncertainty caused by the proposed tariffs by the United States on Chinese goods, and any corresponding Chinese tariffs in response, may negatively impact demand for our products; product mix; risks associated with the ramp - up of production of our new products, and our entry into new business channels different from those in which we have historically operated; the risk that customers do not maintain their favorable perception of our brand and products, resulting in lower demand for our products; the risk that our products fail to perform or fail to meet customer requirements or expectations, resulting in significant additional costs, including costs associated with warranty returns or the potential recall of our products; ongoing uncertainty in global economic conditions, infrastructure development or customer demand that could negatively affect product demand, collectability of receivables and other related matters as consumers and businesses may defer purchases or payments, or default on payments; risks resulting from the concentration of our business among few customers, including the risk that customers may reduce or cancel orders or fail to honor purchase commitments; the risk that we are not able to enter into acceptable contractual arrangements with the significant customers of the acquired Infineon RF Power business or otherwise not fully realize anticipated benefits of the transaction; the risk that retail customers may alter promotional pricing, increase promotion of a competitor's products over our products or reduce their inventory levels, all of which could negatively affect product demand; the risk that our investments may experience periods of significant stock price volatility causing us to recognize fair value losses on our investment; the risk posed by managing an increasingly complex supply chain that has the ability to supply a sufficient quantity of raw materials, subsystems and finished products with the required specifications and quality; the risk we may be required to record a significant charge to earnings if our goodwill or amortizable assets become impaired; risks relating to confidential information theft or misuse, including through cyber-attacks or cyber intrusion; our ability to complete development and commercialization of products under development, such as our pipeline of Wolfspeed products, improved LED chips, LED components, and LED lighting products risks related to our multi-year warranty periods for LED lighting products; risks associated with acquisitions, divestitures, joint ventures or investments generally; the rapid development of new technology and competing products that may impair demand or render our products obsolete; the potential lack of customer acceptance for our products; risks associated with ongoing litigation; and other factors discussed in our filings with the Securities and Exchange Commission (SEC), including our report on Form 10 - K for the fiscal year ended June 25, 2017, and subsequent reports filed with the SEC.

«For the vast majority of people, regularly getting less than about seven hours of sleep leads to concentration problems, lower energy levels, accidents, and, in the long - term, raises the risk of depression,» PsyBlog stresses.

With this increased concentration, more risk is taken on and more returns should be expected but this risk does work both ways and could have just as easily led to lower returns than the TSX.

This suppression leads to low estrogen concentrations and anovulation with a resulting period of lactational amenorrhea and, therefore, has been investigated as a potential factor related to EOC development (10).

Low background atmospheric concentrations, together with well - known and often distinct isotopic characteristics (variants of lead with different atomic weights) of industrial sources make lead an ideal tracer of industrial pollution.

This follows a review and meta - analysis published today (Wednesday) in Human Reproduction one of the world's leading reproductive medicine journals, that shows a strong link between low vitamin D concentrations in women and lower live birth rates after ART compared to women who have the right amount of vitamin D in their bodies.

Lead has been studied and regulated for many decades, leading to a large amount of evidence that it reduces children's IQs at low concentrations and contributes to attention disorders and even violent behaviors.

Globular clusters contain far lower concentrations of the planet - forming heavy elements — such as carbon, oxygen, and iron — than do our sun and nearby stars, leading some to suspect that it might be difficult for planets to form there.

«The normal approach to CDN delivery is simple injection, but this leads to very rapid diffusion of the drug throughout the body and reduces its concentration at the site of the tumor to very low levels,» he said.

Different versions of genes at each location can lead to higher or lower protein concentration in soybean.

For instance, higher dietary fiber intake increased a capsule's time in the small intestine and led to a slight increase in hydrogen concentration in the colon, compared with the hydrogen decrease seen on a low fiber diet.

The iPhone did get a clean bill of health from Greenpeace in several areas: no cadmium (a carcinogen) or mercury (a toxin known to cause nerve and organ damage) was detected, and lead and chromium (toxic if ingested or inhaled) were detected in a small proportion of samples and at relatively low concentrations.

A research group led by Junichi Isoya, professor emeritus, University of Tsukuba and Tokuyuki Teraji, principal researcher, Optical and Electronic Materials Unit, NIMS, has successfully fabricated for the first time in the world single - photon sources of SiV (silicon vacancy) centers — one of the color centers in diamond during the growth of thin film diamond, which have high purity and crystalline quality — by introducing them at extremely low concentrations.

Research leading detection of low concentrations of gas present in exhaled human breath to health checkups and early detection and treatment of serious diseases is being performed.

The consequences of bullying are serious and extract a huge toll on physical health (leading to migraines, sleeplessness, high blood pressure, and loss of appetite), emotional health (leading to anxiety, depression, irritability, family conflict, substance abuse, and thoughts of suicide), and productivity (due to impaired concentration, low morale, absenteeism, and staff turnover).

However, reductions in these individuals» low - density lipoprotein (LDL, commonly called the «bad cholesterol») and triglyceride concentrations were marginal, said lead author Bridget A. Hannon, a graduate research assistant at the university.

«There can be different combinations of materials that can be used in these two layers that can lead to higher efficiencies at lower concentrations,» Ghasemi says.

The Princeton team, which also included researchers from Oregon State University in Corvallis and the Murray Hill, N.J. — based telecommunications firm Alcatel - Lucent, is hoping that improved lenses could lead to sensor systems that can measure low concentrations of chemicals in the air.

However, spironolactone was associated with increased serum creatinine levels and a doubling of the rate of hyperkalemia (high potassium concentration in the blood), but conversely led to reduced hypokalemia (low potassium concentration in the blood).

Lead author of the study, Sabrina Wenzel of DLR explains: «the carbon dioxide concentrations measured for many decades on Hawaii and in Alaska show characteristic cycles, with lower values in the summer when strong photosynthesis causes plants to absorb CO2, and higher - values in the winter when photosynthesis stops.

So while freshwater wetlands are known to be significant methane sources to the atmosphere, their low sulfate concentrations previously led most to conclude that anaerobic oxidation of methane was not important in these regions.

Understanding this leads to three posible pathways we can follow to lower greenhouse gas concentrations, and explains why I've chosen to focus my research on carbon capture and storage.

These findings led treatment plants to begin manipulating chlorine chemistry in order to lower dichloramine concentrations and, ultimately, reduce NDMA formation.

An international team led by Ingrid Felger, from the Swiss Tropical and Public Health Institute in Basel, Switzerland, took advantage of genes that have multiple copies in the parasite genome to reveal parasites present at concentrations that are 10 times lower than the detection limit of current standard assays.

In communities exposed to the highest concentration of NaCl, the lower abundances of zooplankton led to an increase in the abundance of floating algae (their food source).

Further, at a low cytostatic concentration (2 nM), ActD causes ribosomal stress leading to a decrease in HDM2 activity and thereby p53 stabilization and activation.

Although NAAQS regulation of lead was both technologically and economically feasible, not even a global depression lasting several decades would suffice to lower atmospheric carbon dioxide concentrations below current levels.

When it is underactive, also known as hypothyroidism, everything slows down, leading to weight gain, fatigue, dry skin, hair loss, poor concentration, constipation, infertility, low libido, depression, and low body temperature.

Inadequate sleep may lead to low energy, fatigue and daytime sleepiness, affect work concentration and contribute to depression and chronic illnesses, he says.

If you have too little your metabolism will slow down, leading to weight gain or severe weight loss resistance as well as low moods and poor concentration.

In 280 individuals, walking through and viewing a forest versus a city led to lower concentrations of cortisol, heart rate, and blood pressure, and greater overall parasympathetic nervous systems (think the opposite of adrenaline and fight or flight).5

Some research says to avoid it because of markedly high lead concentrations, while other research suggests that the risks associated with the ingestion of heavy metals such as Pb and Cd in broth are minimal, since levels were extremely low.

«The average lead concentration of cocoa beans was < - 0.5 ng / g, which is one of the lowest reported values for a natural food,» they wrote.

In contrast, higher postprandial insulin concentrations and increased fat oxidation with breakfast skipping suggest the development of metabolic inflexibility in response to prolonged fasting that may in the long term lead to low - grade inflammation and impaired glucose homeostasis.

Low progesterone levels lead to lack of concentration, irritability, mood changes and poor short term memory.

Lack of sleep may lead to impaired memory, reduced levels of concentration, and low physical performance which affects your ability to perform daily tasks.

Low concentrations appear to cause contraction of smooth muscle in the stomach, whereas higher concentrations lead to relaxation of the same muscles.

It may also be that the mere lowering of serum insulin concentrations, as is seen with LCDs, may lead to a reduction in appetite.

There is a suggestion of a threshold effect, which has led to the clinical recommendation of very low concentrations of carbohydrate (< 20 — 50 g / d) in the early stages of popular diets.

Lower oxalate concentrations are likely to lead to fewer kidney stones.

The diets containing the viscous fibers led to significantly lower plasma cholesterol concentrations.

Studies of atherogenic lipoprotein concentrations and properties have raised questions about the benefit of lowering saturated fat intakes by increasing carbohydrate intake, which can induce atherogenic dyslipidemia, and the benefit of increasing monounsaturated fat intakes, which does not lead to improvements in the properties of LDL particles that are associated with atherosclerosis in animal models, although substitution with monounsaturated fat rather than carbohydrate has been shown to reduce the ratio of total and LDL cholesterol to HDL cholesterol.

So if light load, high repetition training leads to different effects on Na + / K + pump concentrations than heavy load, low repetition training, then this could be one mechanism that affected muscular endurance without altering maximal strength or muscle size.

Rising residential segregation by income has led to increasing concentrations of low - and high - income children attending separate schools.

Worse still, they led to unwarranted sanctions for many schools serving concentrations of English learners, including having to «reconstitute» schools which could involve staff dismissals, closing schools in many low - income communities, and causing the flight of many good teachers from schools labelled as failing.

Using a regression discontinuity design, we find that turnaround led to a drop in average school - level math and reading passing rates and an increased concentration of low - income students in treated schools.

The UNCONTROLLED feeding of a pelleted diet can lead to obesity, heart and liver disease, chronic diarrhea, and kidney disease, which results from high concentration of carbohydrates, low fiber and high calcium levels.

My analysis is based on a simple model where investments are assumed to be more productive in flood - prone areas, because there are close to coast and rivers, lowering transportation costs, or because of urbanisation, which leads to concentration and development in river flood plains.

However it is unlikely that the past atmospheric concentrations would have led to a significantly lower pH in the oceans, as the rate at which atmospheric CO2 changed in the past was much slower compared with the modern day.