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Topic: Molar

  Molar pregnancy - Wikipedia, the free encyclopedia
Molar pregnancy, sometimes simply referred as mole is a rare abnormal medical condition, a complication of pregnancy inside the category of gestational trophoblastic diseases.
A molar pregnancy is a rare condition where a fertilized egg degenerates into a growth of abnormal tissue resembling a bunch of grapes.
The incidence of molar pregnancy is 1 in 1,500–2,000 pregnancies.
en.wikipedia.org /wiki/Molar_pregnancy   (281 words)

 Molar - Wikipedia, the free encyclopedia
Molar (tooth), the fourth kind of tooth in mammals.
El Molar, Tarragona, a village in the comarca (county) of Priorat, province of Tarragona in the autonomous region of Catalonia, Spain.
Molar behavior, or molara, larger units of behavior in psychology.
en.wikipedia.org /wiki/Molar   (139 words)

 Molar (tooth) - Wikipedia, the free encyclopedia
Molars are the rearmost and most complicated kind of tooth in most mammals.
The types of molars in the human mouth are the maxillary first molars, maxillary second molars, maxillary third molars, mandibular first molars, mandibular second molars, and the mandibular third molars.
This kind of molar is found in mammals that wear their teeth a lot, such as the horse.
en.wikipedia.org /wiki/Molar_(tooth)   (421 words)

 THE MANDIBULAR THIRD MOLAR, A method of predicting its eruption
In a lateral cephalometric radiograph, the oclusal plane and two perpendicular tangents to the distal face of the second molar and the external edge of the ramus are traced and the mesio-distal width of the third molar is measured.
The distance to the anterior edge of the ramus to the distal surface of the second molar in the cephalometric films ranged from 0 to 12 mm., while in the panoramic radiographs, the range was from 2 to 17 mm on the right side and 1 to 14 mm on the left side.
Molars whose eruption was partial to lightly out of alignment had a distance from the anterior edge of the ramus ranging between 11 and 14 mm., and from 31 to 36 mm from Xi.
www.oc-j.com /3rdmolar/3rdmlr.html   (1889 words)

 How to calculate the molar masses of chemical compounds
Molar masses of common chemical compounds that you might find in the chemistry laboratory can range between 18 grams/mole for compounds like water to hundreds of grams per mole for more complex chemical compounds.
The molar mass of elements is found by looking at the atomic mass of the element on the periodic table.
Molar masses of chemical compounds are equal to the sums of the molar masses of all the atoms in one molecule of that compound.
misterguch.brinkster.net /molarmass.html   (915 words)

 ChemTeam: Molar Heat of Vaporization   (Site not responding. Last check: 2007-10-21)
The molar heat of vaporization is an important part of energy calculations since it tells you how much energy is needed to boil each mole of substance on hand.
The molar heat of vaporization for water is 40.7 kJ/mol.
is the symbol for the molar heat of vaporization.
dbhs.wvusd.k12.ca.us /webdocs/Thermochem/Molar-Heat-Vaporization.html   (429 words)

 Introductory University Chemistry I: Molar Stoichiometry: Moles of Solutes
The molar mass of the solvent need not be known in order to make up a solution of a desired molality, but the molar mass of the solute must be known if the amount of solute is measured by mass.
The molar concentration of a solute is by definition the quotient of the amount of solute substance present, in moles, and the volume of solution present, in litres (dm3).
Molarity is used more often than molality in the laboratory because the accurate measurement of volume is easier than is the accurate measurement of mass.
dwb.unl.edu /Teacher/NSF/C09/C09Links/www.chem.ualberta.ca/courses/plambeck/p101/p01034.htm   (2305 words)

 Molar Pregnancy : American Pregnancy Association
A molar pregnancy is an abnormality of the placenta, caused by a problem when the egg and sperm join together at fertilization.
A molar pregnancy is the result of a genetic error during the fertilization process that leads to growth of abnormal tissue within the uterus.
Molar pregnancies rarely involve a developing embryo, and the growth of this material is rapid compared to normal fetal growth.
www.americanpregnancy.org /pregnancycomplications/molarpregnancy.html   (799 words)

 Molar Pregnancy -- Ashley Hill, MD
Molar pregnancies are an uncommon and very frightening complication of pregnancy.
The formal medical term for a molar pregnancy is “hydatidiform mole.” Simply put, a molar pregnancy is an abnormality of the placenta (afterbirth), caused by a problem when the egg and sperm join together at fertilization.
Age over 40 is a risk factor for molar pregnancy, as is having a prior molar pregnancy.
www.obgyn.net /women/articles/molarpreg_dah.htm   (1000 words)

 Partial Molar Pregnancy
A partial molar pregnancy is a variation of a molar pregnancy, an abnormal pregnancy in which an embryo (the fertilized egg) either develops incompletely, or doesn’t develop at all.
A partial molar pregnancy is treated by removing the embryo and placenta from the uterus.
This is done with a surgical procedure known as a suction curettage, in which the cervix is dilated (opened) and the embryo and placenta are removed from the uterus.
clevelandclinic.org /health/health-info/docs/3800/3867.asp?...&src=news   (601 words)

 Molar Pregnancy
A molar pregnancy is a mass of abnormal tissue (hydatidiform mole) that comes from the placenta inside the uterus, which triggers symptoms of pregnancy.
Molar pregnancy is thought to be caused by a problem with the genetic information of an egg or sperm.
A molar pregnancy triggers the same first-trimester symptoms that a normal pregnancy does (a missed menstrual period, breast tenderness, fatigue, increased urination, morning sickness).
www.peacehealth.org /kbase/topic/mini/hw165877/overview.htm   (731 words)

 General Chemistry Online: Glossary:
Molar absorptivities are sometimes written as absorption cross sections by expressing the concentration in units of mol/cm
The heat required to raise the temperature of one mole of a substance by 1°C is called the molar heat capacity of the substance.
O is 18.015 g (obtained by adding twice the molar mass of hydrogen to the molar mass of oxygen).
antoine.frostburg.edu /chem/senese/101/glossary/m.shtml   (1485 words)

 Molar pregnancy: 10 signs and symptoms
Diagnosis of a molar pregnancy is made by ultrasound and by elevated beta hCG levels.
In subsequent pregnancies, the woman may be at higher risk of another molar pregnancy, so she is followed closely with serial hCG levels and ultrasound.
Experiencing a molar pregnancy is extremely stressful for the woman, her partner and family.
parenting.ivillage.com /pregnancy/pcomplications/0,,8g60,00.html   (780 words)

 molar pregnancy
Molar pregnancy, or hydatidiform mole, is a pregnancy which has defective growth patterns.
Molar pregnancy is a clinical problem not only because it produces an abnormal pregnancy which in most cases needs to be terminated but also because of its ability to have residual disease and, in severe cases, result in metastasis.
Once the diagnosis of a molar pregnancy or a non viable pregnancy suspicious for a partial mole is made, evacuation of the uterus is recommended with termination of the pregnancy.
www.hygeia.org /poems11.htm   (1105 words)

 AllRefer.com - molar volume (Chemistry) - Encyclopedia
molar volume, the volume occupied by a mole of a substance at STP.
This volume is what is usually meant by the molar volume, although one can also speak of molar volumes of substances that are not gaseous at STP.
The molar volume of osmium, one of the densest metals, is only about 8.4 cc; that of beryllium is only about 4.86 cc.
reference.allrefer.com /encyclopedia/M/molarvol.html   (228 words)

 America's Pregnancy Helpline   (Site not responding. Last check: 2007-10-21)
Molar pregnancies are rare occurring in 1 out of every 1,000 pregnancies, but they can be the cause of early bleeding.
A molar pregnancy is the result of a (purely chance) genetic error during the fertilization process that leads to growth of abnormal tissue within the uterus.
Molar pregnancies are removed by suction curettage, dilation and evacuation, or sometimes medication.
www.thehelpline.org /medical/molarpregnancy.htm   (568 words)

 Chemical Sciences: Molar Stoichiometry: Moles of Molecules
table of atomic masses, the molar mass of water is 2(1.0079) + 1(15.9994)= 18.0152 g/mol and the molar mass of benzoic acid is 122.1232 g/mol.
The molar mass of a compound, molecule, or ion is the sum of the molar masses of the atoms which compose it.
When referring to the molar mass of a compound which is not molecular, the term formula mass or formula weight is often used, rather than molar mass, to emphasize the point that the mass given applies to one mole of formula units rather than to one mole of actual molecular species.
www.psigate.ac.uk /newsite/reference/plambeck/chem1/p01032.htm   (1095 words)

 Molar Pregnancy Support Group
The egg from the female is fertilized by a sperm by the male, thereby introducing one set of chromosomes (23) from each parent, introducing 46 chromosomes to the fertilized egg.
Complete molar pregnancy--This occurs when either the sperm or the egg involved in fertilization is "empty" (no chromosomes present).
Partial molar pregnancy--This occurs when the egg is fertilized by two sperm or an abnormal sperm containing two sets of chromosomes, therefore introducing three sets of chromosomes (69) at conception rather than just the needed two sets of chromosomes (46).
www.angelfire.com /journal/molarpregnancy   (544 words)

 ChemTeam: Molar Heat of Fusion   (Site not responding. Last check: 2007-10-21)
The molar heat of fusion is an important part of energy calculations since it tells you how much energy is needed to melt each mole of substance on hand.
The molar heat of fusion for water is 6.02 kJ/mol.
The molar heat of fusion value is used at the solid-liquid phase change, REGARDLESS of the direction (melting or freezing).
dbhs.wvusd.k12.ca.us /webdocs/Thermochem/Molar-Heat-Fusion.html   (430 words)

 The Effects of First Premolar Extractions on Third Molar Angulations
The purpose of this study was to determine the relationship between the inclinations of second and third molars during a two- to 2.5-year period in patients treated orthodontically both with and without premolar extractions.
The angles were measured between the long axis of the third molar and the occlusal plane and between the long axis of the third molar and the long axis of the second molar.
The purpose of this study was to investigate the changes in maxillary and mandibular third molar angulation relative to the occlusal plane and changes relative to second molar long axis in a group treated with four first premolar extractions and to compare these changes with a nonextraction group.
www.arabmedmag.com /issue-15-05-2005/dentistry/main03.htm   (2260 words)

 Molar Pregnancy Information
A molar pregnancy, also known as gestational trophoblastic disease, occurs when the tissue that was supposed to form the placenta grows abnormally and can form a tumor that can spread beyond the womb or uterus.
You doctor may suspect a molar pregnancy is you have a high level of human chorionic gonadotropin (HCG), the hormone measured in a routine pregnancy test.
If you have a molar pregnancy, further testing will be done to determine the type of mole and the possibility of it spreading outside the uterus.
www.baby-parenting.com /pregnancy/molar_pregnancy.html   (1333 words)

 Pregnancy Today - The Facts About Molar Pregnancy
As Hiltbrand experienced, most molar pregnancies cause symptoms that alert the woman and her doctor that something is wrong.
The uterus also may be larger than expected for the stage of pregnancy, because of the large and swollen placenta, although this isn't something a woman will notice on her own; it is generally discovered by the doctor during a medical examination.
When a molar pregnancy is confirmed, the woman will quickly have a procedure called a dilation and curettage (D&C), "which is the removal of the abnormal tissue from the uterus using a suction tube," says Dr. Stotland.
www.pregnancytoday.com /reference/articles/molar.htm   (932 words)

 The elephant molar teeth
The molar teeth are cheekteeth with ridges, which are developed for grinding food, hence the name molar, which means "millstone".
The molars of different species differ considerably, and is one of the most important key´s for paleontologists to determine the species of a fossil, since teeth are one of the most common findings in excavation sites.
The molar teeths were also an inspiration for the evolutionists to name different species, Mastodon means "breast-toothed" and Stegodon means "roof-toothed", and Loxodonta means "sloping teeth".
www.elephant.se /molar.php   (432 words)

 Medical References: Ectopic and Molar Pregnancy
In a molar pregnancy, the early placenta develops into a mass of cysts (called a hydatidiform mole) that resemble a bunch of white grapes.
Molar pregnancy poses a threat to the pregnant woman when the mole penetrates deep into the uterine wall, which can result in heavy bleeding.
If a woman has a molar pregnancy, her outlook for a future pregnancy is good.
www.marchofdimes.com /professionals/681_1189.asp   (1657 words)

 Molar Absorption Coefficients   (Site not responding. Last check: 2007-10-21)
/cl. The molar absorptivity is a Beer-Lambert absorption coefficient.
Molar absorption coefficients appear in parentheses next to the wavelengths in the Ultraviolet column.
Molar absorption coefficients when available are given in parentheses next to major bands in the UV section of the entry.
www.lib.utexas.edu /chem/info/molabscoeff.html   (657 words)

 Mt. Auburn Obstetrics & Gynecologic Associates, Inc.
A molar pregnancy is also called gestational trophoblastic disease, or a hydatiform mole.
The incidence of molar pregnancy is 1 in 1500-2000 pregnancies.
A molar pregnancy is usually removed by a DandC (suction curettage).
www.mtauburnobgyn.com /molar.html   (259 words)

 Absolute molar masses of polysaccharides and other (bio)polymers by GPC-MALLS   (Site not responding. Last check: 2007-10-21)
The output of the light scattering detector is proportional to the multiplication of the concentration and the molar masses of macromolecules.
At any elution time the molar masses of the polymer eluting from the column can be calculated from the quotient of MALLS and RI signals.
The fact that identical molar masses have different elution times demonstrates differences in conformation, and thus hydrodynamic volumes, caused by differing degrees of branching.
www.voeding.tno.nl /Go/Prodvoe251e.htm   (549 words)

 Molar Pregnancy
A molar pregnancy occurs when a fetus is not able to fully form in the uterus.
A molar pregnancy refers to a pregnancy that is a type of gestational trophoblastic disease.
Q: I was just 8 weeks pregnant when an ultrasound discovered that I had a I had a D and C, and now, besides grieving the loss of a child, I have to think about the consequences of this kind of complication.
www.health-nexus.com /molar_pregnancy.htm   (463 words)

 Complications: From Hurt to Healing: Dealing with the Loss of a Baby
In a molar pregnancy, the early placenta grows abnormally into a mass of cysts (called a hydatidiform mole).
All molar pregnancies result from an abnormal fertilized egg with two sets of male chromosomes and either one or no sets of chromosomes from the mother.
Molar pregnancies are diagnosed with ultrasound The molar tissue must be removed from the uterus and the woman monitored to make sure that there is no tissue remaining.
www.marchofdimes.com /pnhec/188_1110.asp   (366 words)

 Molar pregnancy
In most complete molar pregnancies, the fertilized egg contributes no maternal chromosomes and the chromosomes from the father's sperm are duplicated, so you end up with two copies of chromosomes from the father and none from the mother.
In most partial molar pregnancies, the fertilized egg has the normal complement of chromosomes from the mother but double the chromosomes from the father, so there are 69 chromosomes instead of the normal 46.
The good news is that having a molar pregnancy doesn't affect your fertility or ability to have a normal pregnancy, even if you've had chemotherapy.
www.babycenter.com /refcap/pregnancy/pregcomplications/1363614.html   (1544 words)

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