Form crystals. Medical search. Frequent questions

Common examples of crystallization are the formation of snowflakes and ice crystals, crystallization of honey and other forms of sugar, and the classic example of the salt crystals left behind when water is evaporated from a briny solution. (databasefootball.com)
You can make " salt stalactites " at home by growing salt crystals on a string. (asiapacificnews.net)
As that happens, salt crystals precipitate out of the water and grow crystals on the string. (asiapacificnews.net)

For example, some bacteria form crystalline-like structures and certain kinds of algae, such as volvox, form into spherical colonies made up of tens of thousands of organisms that are well known to "dance" around each other. (discovermagazine.com)
The researchers found that when crystals made of an organoplatinum compound react with sulfur dioxide gas, the altered molecules immediately reorganize, maintaining the crystalline structure, Albrecht said. (trnmag.com)
But the importance of the process is far larger: precipitation of solids from solution is a key process in chemistry, and many pharmaceuticals are sold in crystalline form. (databasefootball.com)
While the interest in L-cystine crystals is limited to the biomedical arena, understanding the details of crystal growth, especially the role of defects-or imperfections in crystals-is critical to the advancement of emerging technologies that aim to use organic crystalline materials. (nyu.edu)

These crystals are held together by the attractive forces between atoms and molecules that, in certain circumstances, allow them to form highly periodic lattice structures. (discovermagazine.com)
Crystals grow when molecules that are alike get close to each other and stick together, forming chemical bonds that act like Velcro between atoms. (asiapacificnews.net)
Dithiophosphinate and iminophosphonamide ligands form four-membered PtXPX metallacycles with coordination by either sulfur or nitrogen atoms (= X). The complexes are fully characterized, including two solid-state structures. (figshare.com)
A crystal can be made from any number of different atoms, but these atoms always form a structure with a symmetric pattern. (materialstoday.com)
The atoms in a zirconium tungstate crystal have many modes of vibration that can move atoms into empty spaces and reduce the structure's overall volume, says Andrew Goodwin of the University of Oxford in the UK. (aps.org)
This stringy structure forms because, when water molecules diffuse into cavities in the crystal structure, they bind to tungsten atoms and tilt the tungstate groups into positions that facilitate the linkages. (aps.org)

Our experimental observations show how, over the course of their natural development, thousands of swimming embryos come together to form living chiral crystal structures that persist for many hours," they say. (discovermagazine.com)
This part of human CD4 (residues 1-369) has been characterized as a recombinant soluble protein (sCD4), and crystal structures have been described for the human D1D2 fragment and for the rat D3D4 fragment. (rcsb.org)
We have now determined the structures of intact sCD4 in three crystal lattices. (rcsb.org)
This process causes the elements and chemical bonds in the rock to rearrange themselves into new crystal structures. (asiapacificnews.net)
Here, we use double emulsions of water droplets inside radial nematic liquid crystal droplets to form various structures, ranging from linear chains to three-dimensional fractal structures. (nature.com)

Crystals tend to crumble apart in the presence of reactive gases, but researchers at Utrecht University in the Netherlands have found a crystal that not only holds together but also changes color. (trnmag.com)
This means that it is hard to directly observe crystal nucleation, and researchers are forced to rely on indirect methods that only reveal partial pictures of what happens. (databasefootball.com)
In a display of modern-day alchemy, researchers at the University of Warwick in the UK have shown that a touch of gold - or another noble metal - can change the structure of a crystal and thus alter its intrinsic properties. (materialstoday.com)
As the researchers report in a paper in Nature , they have found a way to induce completely novel electric effects in crystals, such as converting movement or heat into electricity, simply by adding a piece of metal to their surface. (materialstoday.com)
By adding a small piece of metal to the crystal surface, the researchers created a junction known as a Schottky junction. (materialstoday.com)
For the crystals, the researchers utilized strontium titanate, titanium dioxide and silicon. (materialstoday.com)
In previous work, the researchers examined mechanical means for breaking crystal symmetry, whereas this work looked at the possibility of breaking symmetry using an electric field. (materialstoday.com)
The researchers focused on L-cystine crystals, the chief component of a particularly nefarious kind of kidney stone. (nyu.edu)

Starfish embryos can spontaneously form into giant, waterborne crystals with exotic properties. (discovermagazine.com)
Mineral crystals cannot just start forming spontaneously - they need special conditions and a nucleation site to grow on. (asiapacificnews.net)

Using atomic force microscopy, the Molecular Design Institute team examined both kinds of screw dislocations in L-cystine crystals at nanoscale resolution. (nyu.edu)
The experimental material consisting of C2S and C3S with a nanoscale particle size can form hydroxyapatite -like crystals in dentinal tubules in PBS, and there is a possibility of reducing dentin hypersensitivity by blocking the dentinal fluid flow. (bvsalud.org)

Molecules in a crystal are like bricks in an enormous wall, said Martin Albrecht, a graduate student researcher on the project. (trnmag.com)
The first is "nucleation," in which a small number of molecules come together to form clusters. (databasefootball.com)
Most importantly, the clusters involved are usually very small - consisting of only tens or hundreds of molecules - and form rarely. (databasefootball.com)
Some crystals, including zircons, have growth rings, like the rings of a tree , that form when layers of molecules accumulate as the mineral grows. (asiapacificnews.net)
The NAG molecules, which were closing the glycosylation site in the orthorhombic form, in hexagonal structure make the glycosylation site open. (rcsb.org)
Liquid crystals are anisotropic fluids, in which the rigid and anisotropic constituent molecules have a strong tendency to form mesophases with long-range orientational order, described by the order parameter S . In the simplest and most widely studied liquid crystal phase, the nematic, the molecules are free to move around each other and lack any long range positional order. (nature.com)

If you have to do something where the whole crystal changes and it's by [absorption], it's unlikely that you're going to have that occur extraordinarily fast," he said. (trnmag.com)
Most rock shops sell mineral crystals that occur in nature. (asiapacificnews.net)
According to their x-ray diffraction results and calculations, there is a similarity between the NTE vibrational modes and the structural shifts that occur when the material is hydrated and forms tungstate chains. (aps.org)

So does another mineral called travertine , which sometimes forms flat ledges in caves and around hot springs, where water causes chemical reactions between the rock and the air. (asiapacificnews.net)
As that magma cools down, mineral crystals grow from it, just like water freezing into ice cubes. (asiapacificnews.net)
These mineral crystals form at much higher temperatures than salt or travertine precipitating out of water. (asiapacificnews.net)
For example, the presence of certain mineral crystals in rocks can reveal the rocks' age. (asiapacificnews.net)
One of the most valued mineral crystals for geochronologists is zircon , which is so durable that it quite literally stands the test of time. (asiapacificnews.net)
Sometimes mineral crystals grow as high pressure and temperatures within the Earth's crust change rocks from one type to another in a process called metamorphism . (asiapacificnews.net)
Especially showy mineral crystals are also valuable as gemstones for jewelry once they are cut into new shapes and polished. (asiapacificnews.net)
Enamel is composed mainly of mineral crystals. (medlineplus.gov)

Other species also form crystals. (discovermagazine.com)
The intensity of the color indicates the density of the crystal-forming species. (databasefootball.com)

Cyanide can also be a crystal (solid) form such as sodium cyanide (NaCN) or potassium cyanide (KCN). (cdc.gov)
The Bureau procedure consists of reacting chromite with molten naoh under oxidizing conditions to form sodium chromate (na2cro4). (cdc.gov)
Sodium chromate crystals were produced that contained less than 0.01 pct naoh. (cdc.gov)

Calcium pyrophosphate (CPP) arthritis (previously called pseudogout) is a disorder caused by deposits of calcium pyrophosphate dihydrate crystals in the joint cartilage, leading to intermittent attacks of painful joint inflammation similar to gout or a chronic arthritis similar to rheumatoid arthritis. (msdmanuals.com)
Intratubular crystal formation in the exposed dentin from nano-sized calcium silicate for dentin hypersensitivity treatment. (bvsalud.org)

09/08/17 - The active search for 37 year-old Crystal McDowell will resume on Saturday, September 9th 2017 at 8:00 a.m. (texasequusearch.org)
8/29/17 - 37 year-old Crystal McDowell was alleged last seen in Baytown, Texas on August 25th 2017. (texasequusearch.org)

Clouds consist of vast numbers of cloud droplets and ice crystals suspended in the air. (lu.se)
Primary biological aerosol particle (PBAPs) have a distinctive role because they initiate both cloud droplets and, at remarkably warm sub-zero temperatures, ice crystals. (lu.se)

Generally, the properties of these crystals are determined by two factors: the intrinsic properties of the elements that the crystal consists of, and how those elements are arranged to form that crystal, which we call its symmetry,' explained Mingmin Yang, who conducted the work at the University of Warwick and has since moved to the RIKEN Institute in Japan. (materialstoday.com)
Nematic liquid crystals are described by cylindrical symmetry and are uniaxial, which makes n physically indistinguishable from − n 6 . (nature.com)

The crystals are made of an organic compound that includes platinum. (trnmag.com)
NYU chemists have discovered crystal growth complexities, which at first glance appeared to confound 50 years of theory and deepened the mystery of how organic crystals form. (nyu.edu)

09/09/17 - The active search for 37 year-old Crystal McDowell is now over. (texasequusearch.org)
09/06/17 - COMMAND CENTER ADDRESS: The address of the Command Center for the Crystal McDowell search is 5959 West Bay Road, north of Highway 99. (texasequusearch.org)
09/06/17 - The Chambers County Sheriff's Office has requested our immediate help on the search for Crystal McDowell. (texasequusearch.org)
09/02/17 - The active search for 37 year-old Crystal McDowell has been suspended until further, credible information becomes available to law enforcement investigators. (texasequusearch.org)
If law enforcement investigators request Texas EquuSearch to re-activate the search for Crystal, we will do so. (texasequusearch.org)
Thank you to all of our searchers that came to search for Crystal. (texasequusearch.org)

The other two important forms are red (monoclinic) with a melting point of 221 EC and amorphous selenium, which exists in black and red forms. (cdc.gov)
Black amorphous selenium is vitreous and is formed by the rapid cooling of liquid selenium. (cdc.gov)
Red amorphous selenium is colloidal and is formed in reduction reactions (Hoffmann and King 1997). (cdc.gov)
Emtricitabine is known to exhibit polymorphism and exists in Forms I, II, III, hydrated forms and an amorphous form. (who.int)

Over time, these clusters grow into larger crystals, reaching sizes of hundreds to thousands of embryos and persisting for tens of hours. (discovermagazine.com)
We now know that in many cases crystals do not form directly from a solution, but rather, they begin as small disorganized clusters - called precursors - that grow and eventually transform into crystals. (databasefootball.com)

This influences the fluid flow around them, which reduces the order within the crystal. (discovermagazine.com)
Crystals accumulate in the fluid and cartilage of the joints, and cause varying degrees of inflammation and tissue damage. (msdmanuals.com)
The diagnosis is confirmed by finding CPP crystals in joint fluid. (msdmanuals.com)

Alexe and his colleagues utilized crystals that can function as a semiconductor, allowing an electrical current to flow through them. (materialstoday.com)
It is used in the semiconductor and computer chip crystal manufacturing industry. (cdc.gov)
The aim of the course is that the student, once the course is completed, has aquired knowledge to understand crystal growth and especially semiconductor epitaxy. (lu.se)
The course replaces FYST35 Physics: Crystal Growth and Semiconductor Epitaxy, 7.5 credits, and cannot be counted in a degree together with this course. (lu.se)

Why is this the preferred pathway for forming crystals rather than directly creating crystals to start with? (databasefootball.com)
The goal of this work is to start with nothing except the form of the molecular interaction forces and be able to predict the structure of the crystals that will form as well as the pathway of their formation such as the existence and nature of any precursors. (databasefootball.com)
Cholestanol is formed in a pathway from the bile acid precursor 7-alpha-hydroxy-4-cholesten-3-one. (medscape.com)

All minerals are crystals , but not all crystals are minerals. (asiapacificnews.net)
A list of new crystal forms of minerals. (amnh.org)

Certain proteins are needed to shape and organize the crystals as they form, but these proteins must be removed for enamel to harden normally. (medlineplus.gov)
Amyloidosis Amyloidosis is a rare disease in which abnormally folded proteins form into collections called amyloid fibrils that accumulate in various tissues and organs, sometimes leading to organ dysfunction. (msdmanuals.com)

A striking feature of the living chiral crystals is that they nucleate, grow and dissolve naturally as embryos progress through their development," say Tan, Mietke and colleagues. (discovermagazine.com)

The process is reversible, meaning the crystals can be switched between clear and orange-colored states by adding or removing sulfur dioxide gas. (trnmag.com)
Selenium belongs to Group 6 (Group VIA) of the periodic table, located between sulfur and tellurium, and resembles sulfur both in its various forms and in its compounds. (cdc.gov)
Tellurium and sulfur remained in the leach residue primarily in the elemental form. (cdc.gov)

This research has shown that crystal nucleation is far more complex than previously believed. (databasefootball.com)
If they have a nucleation site, they will stick to it and start to form crystals. (asiapacificnews.net)
This course treats the fundamental aspects of crystal growth, e.g. the thermodynamic prerequisites for crystal growth such as chemical potential, construction of binary phase diagrams, supersaturation, and nucleation. (lu.se)

Scientifically speaking, the term "crystal" refers to any solid that has an ordered chemical structure . (asiapacificnews.net)
The so-called BCF theory posited that crystals with one screw dislocation would form hillocks that resembled a spiral staircase while those with two screw dislocations would merge and form a structure similar to a Mayan pyramid-a series of stacked "island" surfaces that are closed off from each other. (nyu.edu)
In the NHE mechanism, these bonds are actually formed, but in NTE we see only the structure fluctuating towards an increasingly bonded state," Goodwin says. (aps.org)
The resulting enamel is soft and has an abnormal crystal structure. (medlineplus.gov)
The crystal structure of Form I is retained during stability testing. (who.int)

Each cloud droplet and each initial ice crystal is initiated by an aerosol particle. (lu.se)
The aim of this study is to evaluate intratubular crystal formation from the experimental material consisting of dicalcium silicate (C2S) and tricalcium silicate (C3S) with nano-scaled particle size . (bvsalud.org)

amount}} AUD ' data-customer_id="" data-shop_id="10477444" data-domain="unearthed-crystals.myshopify.com" data-drawer_title="My Wishlist" data-drawer_empty_msg="Your wishlist is empty! (unearthedcrystals.com.au)

After about 30 hours, disorder begins to dominate and the crystal slowly dissolves over a period of 10 hours," they say. (discovermagazine.com)
At least seven mutations in the MMP20 gene have been identified in people with an autosomal recessive form of a disorder of tooth development called amelogenesis imperfecta. (medlineplus.gov)

These crystals have well defined properties. (discovermagazine.com)
Zoisite crystal properties are a topic of fascination for many crystal enthusiasts and collectors alike. (bernardine.com)
In this article, we will explore the intriguing world of zoisite crystal properties, uncovering its metaphysical properties, healing benefits, and various forms in which it can be found. (bernardine.com)
Zoisite crystal properties are often associated with various healing benefits. (bernardine.com)
Zoisite can be found in various forms, each with its own unique properties and characteristics. (bernardine.com)
Zoisite crystals are believed to have a wide range of metaphysical properties that can positively impact one's spiritual, emotional, and physical well-being. (bernardine.com)

Lots of spectacular crystals grow in this way, including garnet , kyanite and staurolite . (asiapacificnews.net)
The authors hoped to improve their understanding of how these crystals form and grow in order to design therapeutic agents that inhibit stone formation. (nyu.edu)
In other words, while the crystals' physical appearance seemed at odds with the long-standing theory, they actually did grow in a manner predicted decades ago. (nyu.edu)

We have achieved light modulation of liquid crystal (LC) device with 1 μm pixel pitch for realizing electronic holographic displays with wide field of view. (or.jp)
Nematic liquid crystals are anisotropic fluids that self-assemble into vector fields, which are governed by geometrical and topological laws. (nature.com)

Another form of zoisite is green zoisite, which is commonly found in shades of green ranging from light to dark. (bernardine.com)
Yellow zoisite, also known as anyolite, is a rare form of zoisite that is found in shades of yellow and green. (bernardine.com)
Such an improvement over all other sweet alyssum varieties when it arrived on the scene in 1988, the Crystal series continues to delight with Clear Crystal® Purple Shades Sweet Alyssum. (parkseed.com)
Clear Crystal® Purple Shades Sweet Alyssums scent is ultra-sweet and pleasing, and lasts all season. (parkseed.com)
Clear Crystal® Purple Shades Sweet Alyssum is great in containers, beds, along the driveway, in street plantings, edging the foundation, and just about everywhere they can get full sunshine, they're trouble free and so dependable. (parkseed.com)
Make Clear Crystal® Purple Shades Sweet Alyssum a central feature of your sunny spaces this season. (parkseed.com)

This image shows a crystal forming from a weak solution. (databasefootball.com)
Subsequently we study a weak form of our system. (projecteuclid.org)

A re-examination of these micrographs by Molecular Design Institute scientist Alexander Shtukenberg, in combination with computer simulations, served to refine the actual crystal growth sequence and found that, in fact, BCF theory still held. (nyu.edu)
One of the most well-known forms of zoisite is tanzanite, which is a rare and valuable gemstone found only in Tanzania, Africa. (bernardine.com)
A body has been found that is thought to be that of 37 year-old Crystal. (texasequusearch.org)
Impure pentachlorophenol (the form usually found at hazardous waste sites) is dark gray to brown and exists as dust, beads, or flakes. (cdc.gov)

Scientists in the Molecular Design Institute in the NYU Department of Chemistry have been examining defects in crystals called screw dislocations - features on the surface of a crystal that resemble a spiraled ham. (nyu.edu)
We also include the Gibbs-Thomson relation on the crystal surface. (projecteuclid.org)
The crystal formation occurred at a depth of more than 50 µm from the dentin surface. (bvsalud.org)

During crystallization screenings of commercially available hydrolytic enzymes, the new, hexagonal crystal form of CAL-B, has been discovered and hereby reported. (rcsb.org)

They are known as interface effects and were confined to a very shallow region of the crystal, underneath the metals. (materialstoday.com)

Embryos from Patiria miniata starfish, like this one, can form living crystals in water. (discovermagazine.com)
Arsine (SA) is a highly toxic gas, formed by the reaction of arsenic-containing substances with hydrogen in water or acids. (cdc.gov)

To start the magical misting process, turn on the magic wand, remove the lock that holds the crystal ball in place and turn the switch on the base to "create" mode. (wreg.com)

2/4 · evaluate and choose an appropriate crystal growth method for a specific issue. (lu.se)

We have discovered that the ice crystal process produces most of the precipitation at middle latitudes, but that the warm rain process prevails in the tropics. (lu.se)

They appeared to contradict 60 years of thinking about crystal growth, but in fact revealed that crystal growth is at once elegant and complex, with hidden features that must be extracted if it is to be understood. (nyu.edu)

These novel effects could allow the crystals to find use as sensors, which require high sensitivity, or in technologies relying on energy conversion. (materialstoday.com)
Until the Crystals, sweet alyssum was a rather delicate annual, nicely fragrant and everything but short-blooming and subject to fall apart a bit when faced with rough wind or high heat. (parkseed.com)
And they form neat plants, just a few inches high when not in bloom but reaching up to 10 inches in flower, with a width of 8 to 10 inches too. (parkseed.com)
TDF is known to exhibit polymorphism and exists in two forms, namely a low melting form (m.p. 112-1140C) and a high melting form (m.p. 114-1180C). (who.int)

Everton boss Sean Dyche has now won seven of his 16 Premier League matches against Crystal Palace (D4 L5). (yahoo.com)
Of teams he has faced 15+ times in the Premier League, only against Tottenham Hotspur (4.8%), Arsenal (13.6%) and Liverpool (16.7%) does Crystal Palace boss Roy Hodgson have a worse win percentage than against Everton (17.4% - P23 W4 D7 L12). (yahoo.com)

We also offer a special Prayer to each crystal and include it with every order. (healingcrystals.com)
In order to make this system tractable mathematically we assume that the Wulff crystal is a fixed cylinder. (projecteuclid.org)
The examiner, in consultation with Disability Support Services, may deviate from the regular form of examination in order to provide a permanently disabled student with a form of examination equivalent to that of a student without a disability. (lu.se)

The formation and dissolution of these living chiral crystals is driven entirely by the embryos' development process. (discovermagazine.com)
The list of applications that depend on crystal formation is endless. (databasefootball.com)
Enamelysin is involved in the formation of enamel, which is the hard, white material that forms the protective outer layer of each tooth. (medlineplus.gov)
Foscarnet, which is used to treat resistant cytomegalovirus (CMV) infections, causes acute interstitial nephritis and intratubular crystal formation. (medscape.com)

Some shops also feature showy, human-made crystals such as bismuth , a natural element that forms crystals when it is melted and cooled. (asiapacificnews.net)
We want to thank the diligent and highly skilled professionals with the Chambers County Sheriff's Office and the Texas Rangers, because they, along with the team of Texas EquuSearch made every committed effort possible to find Crystal. (texasequusearch.org)

Because the crystal also changes color, the two states can be readily observed and can serve as the on and off positions of a switch. (trnmag.com)
One of the most well-known forms of zoisite is the green variety known as 'tanzanite,' which is highly sought after for its exquisite color and rarity. (bernardine.com)
These one-quarter-inch lavender-purple blooms are so profuse that they form a neat canopy of color over the fresh green foliage. (parkseed.com)

We sort, pick and pack all of our crystals with great care. (healingcrystals.com)

Selenium reacts with oxygen to form a number of oxides, the most stable of which is selenium dioxide. (cdc.gov)

Analytical, Diagnostic and Therapeutic Techniques and Equipment4

Phenomena and Processes12

Disciplines and Occupations1

Technology, Industry, Agriculture1

Information Science2

Salt crystals3

Crystalline4

Atoms6

Structures5

Researchers8

Spontaneously2

Nanoscale2

Molecules6

Occur3

Mineral8

Species2

Sodium3

Calcium2

20172

Droplets2

Symmetry2

Organic2

Search6

Amorphous4

Clusters2

Fluid3

Semiconductor4

Pathway3

Minerals2

Proteins2

Colleagues1

Sulfur3

Nucleation3

Structure5

Particle2

Wishlist1

Disorder2

Properties6

Grow3

Liquid2

Shades6

Weak2

Found4

Surface3

Commercially1

Metals1

Water2

Start1

Evaluate1

Produces1

Complex1

High4

Palace2

Order3

Formation4

Made2

Color3

Sort1

Oxygen1