Sentences with phrase «chemical changes during»

Not exact matches

Several potentially desirable chemical changes can take place during this 4 - hour soaking period.
Food chemistry is the important characteristics of Food science deals with the composition and characteristics of food and includes the chemical changes of food during the processing, storage and utilization.
Food Chemistry is the branch of food science that deals with study of chemical changes that undergoes during the processing, handling, storage of food.
Siegmiund B and Murkovic M. Changes in chemical composition of pumpkin seeds during the roasting process for production of pumpkin seed oil (Part 2: volatile compounds).
Basic knowledge of chemical and physical changes will be shown and declared during the technical part.
The company claims the ingredient can maintain its chemical, physical and sensory characteristics during prolonged storage time and avoids quality deterioration caused by changes in temperature.
To reduce a baby's exposure, mothers can change their diets during pregnancy and breastfeeding, limiting the exposure to these chemicals during the critical times of growth and development.
A lot of physical and chemical changes are happening in her body during the first trimester.
During this time, there are also chemical changes occurring, and new hormones being released to trigger bonding and milk production.
At the same time, chemical changes in your body during pregnancy were altering your individual smell, making it more distinctive to your baby.
During changes, they should avoid wiping the penis down with a baby wipe, as they can contain chemicals that can irritate the area.
It's common to have mood swings during pregnancy, partly because of hormonal changes that affect neurotransmitters (chemical messengers in the brain).
During pregnancy, hormone changes can affect brain chemicals and cause depression and anxiety.
«When a new substance forms during a chemical reaction, many students think that the atoms and molecules have actually changed into something new, whereas they simply rearranged, that the mass increase of plants is due to minerals in the soil, or that cell division alone accounts for animal growth,» said Cari Herrmann Abell, a senior research associate at Project 2061.
Scientists could seek to understand the subtle pressure of light that causes asteroids to change their spin, and could retrieve samples for dating and chemical analysis that would offer a clearer picture of Solar System material than do meteorites, which, although they are pieces of asteroids, are altered during their fall through Earth's atmosphere.
In addition, researchers replicated the conditions under which the fossils formed to identify the chemical alteration of melanin, subjecting modern feathers to high temperatures and pressures to better understand how chemical signatures changed during millions of years of burial.
The artificial pump is able to syphon off some of the energy that changes hands during a chemical reaction and uses it to push the rings together.»
The term diagenesis is used to describe all the chemical, physical, and biological changes, including cementation, undergone by a sediment after its initial deposition and during and after its lithification, exclusive of surface weathering.
Researchers continue to study what sparks these hormonal changes and have begun looking at environmental chemical exposure, stress levels and diet during pregnancy.
He found major changes in baby coral caused by these chemical additions to the water, both during the lifetime of the organisms and beyond.
Pilsner hypothesizes that exposure to certain plastics such as phthalates and other chemicals during this reprogramming event is associated with changes in methylated tags on the sperm's DNA.
«Detailed chemical measurements in Antarctic ice cores show that massive, halogen - rich eruptions from the West Antarctic Mt. Takahe volcano coincided exactly with the onset of the most rapid, widespread climate change in the Southern Hemisphere during the end of the last ice age and the start of increasing global greenhouse gas concentrations,» according to McConnell, who leads DRI's ultra-trace chemical ice core analytical laboratory.
«The chemical changes which occur during this weathering tell us something about the composition of the atmosphere at that time.
A chemical called bisphenol A — BPA — used in plastic packaging and in the linings of food and beverage cans, may be passed from a mother to her offspring during pregnancy and cause changes in the gut bacteria of the offspring, according to an international team of researchers.
In the high school unit, Roseman noted, similar atomic and molecular models are also used but in conjunction with bar graphs and energy transfer diagrams to help students understand that the energy changes they observe during chemical reactions are associated with changes in the arrangement of atoms.
They have the same hormones and undergo the same chemical changes that humans do during emotional states.
During development, chromosomes are subject to chemical changes that don't affect the nucleotide sequence but can turn genes on or off; the best known example is methylation, in which a methyl group is attached to specific DNA regions.
Professor Sinclair said: «It is well established that prior to conception and in the early stages of pregnancy during natural or assisted reproduction subtle chemical changes can affect the human genome leading to development and late - onset chronic diseases.
SIX decades after their pregnant mothers were starved during the second world war, the genes of Dutch men and women retain chemical changes that may put them at risk of diabetes and cancer.
Memory researchers have previously speculated that somewhere in the brain network is a population of neurons that are activated during the process of acquiring a memory, causing enduring physical or chemical changes.
By focusing an X-ray beam onto the silver paste during the contact formation, the researchers were able to capture the chemical and physical changes to the solar cell and the silver paste during the firing process and use those data to create a better picture of what happens.
The novel life forms that emerged represent existing genomic material being used in novel ways to control and regulate interlinked cascades of biological pathways during development, resulting in novel body plans and / or finer tuning of existing body plans to changing phyical, chemical and biospheric selective pressures.
During the first four - year cycle (2013 - 2016), the prize subject focused on the basic sciences, with the specific subject area changing each year: physics and astronomy (2013), biological sciences (2014), mathematics (2015) and chemical sciences (2016).
While many are familiar with the «momnesia» that can occur during gestation, a new study published in the journal Natural Neuroscience contends that — along with sweeping hormonal, emotional, chemical and outward physical changes — pregnancy alters regions of the brain for up to two years after a woman gives birth.
During that process, the chemicals can change somewhat.
For example, transgenic mice lacking dopamine, a key brain chemical for motor control, provide an integral animal model for studying the changes in brain dynamics during the induction and recovery from an induced Parkinsonian state.
We can watch them change during a chemical reaction, and sometimes there are surprises.
The observatory is studying physical and mechanical properties of rocks before, during and after a quake; physical and chemical changes in the earth's crust that occur during an earthquake; and temperature change that impels melting of rocks.
Physical and chemical changes in minimally processed green asparagus during cold - storage.
The ancient Greeks understood that important chemical changes took place during this type of fermentation.
Partially hydrogenated margarines and shortenings are even worse for you than the highly refined vegetable oils from which they are made because of chemical changes that occur during the hydrogenation process.
This is the chemical added to the inner pad of a disposable to make it super-absorbent; these are the small, shiny, gelatinous crystals you will sometimes find during diaper changing.
Siegmiund B and Murkovic M. Changes in chemical composition of pumpkin seeds during the roasting process for production of pumpkin seed oil (Part 2: volatile compounds).
It measures the inflammatory response and subtle changes in our immune cells (lymphocytes, neutrophils, monocytes, and eosinophils) as they release chemical mediators (a substance released from cells, e.g., cytokines, histamine, leukotrienes, prostaglandins, etc.), that regulate or cause physiologic consequences during an immune response to an antigen.
The one thing scientists have been able to come to an agreement on is that the dog smells a chemical body change on the person just prior to and during a seizure.
It is thought that changes in brain chemicals occur during chronic anxiety and that this can lead to the hyperesthesia disorder.
Using chemical tracers in sediment that builds up on the sea floor over time, Henry and his co-authors were able to document the relative speed of the Atlantic meridional overturning circulation during each abrupt climate change.
The ozone process is complex and little understood, but recent finds by Haigh are showing quantities of ozone can increase above 45 km and decrease below during times of weak solar activity, which is no doubt brought about by the chemical changes that fluctuating EUV / FUV brings along.
During the past 500 years or so, human activities have released mercury from its relatively stable and water - insoluble form (cinnabar) in rocks and soil through mining, fossil fuel combustion, and other activities, and so have increased the portion of mercury that is actively cycling through the atmosphere, surface waters, plants, and animals as it changes chemical and physical form.
«We've seen a number of changes in the last 12 months and expect to see more — there's been 10 per cent greater movement of people between organizations,» says Lorne O'Reilly, president of the Alberta chapter of the ACC and in - house lawyer with Dow Chemical in Calgary, noting he has seen some in - house peers also return to private practice during the downturn.
a b c d e f g h i j k l m n o p q r s t u v w x y z