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Welcome to The Visible Embryo, a comprehensive educational resource on human development from conception to birth.

The Visible Embryo provides visual references for changes in fetal development throughout pregnancy and can be navigated via fetal development or maternal changes.

The National Institutes of Child Health and Human Development awarded Phase I and Phase II Small Business Innovative Research Grants to develop The Visible Embryo. Initally designed to evaluate the internet as a teaching tool for first year medical students, The Visible Embryo is linked to over 600 educational institutions and is viewed by more than ' million visitors each month.


WHO International Clinical Trials Registry Platform
The World Health Organization (WHO) has created a new Web site to help researchers, doctors and patients obtain reliable information on high-quality clinical trials. Now you can go to one website and search all registers to identify clinical trial research underway around the world!



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Disclaimer: The Visible Embryo web site is provided for your general information only. The information contained on this site should not be treated as a substitute for medical, legal or other professional advice. Neither is The Visible Embryo responsible or liable for the contents of any websites of third parties which are listed on this site.
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Pregnancy Timeline by SemestersFetal liver is producing blood cellsHead may position into pelvisBrain convolutions beginFull TermWhite fat begins to be madeWhite fat begins to be madeHead may position into pelvisImmune system beginningImmune system beginningPeriod of rapid brain growthBrain convolutions beginLungs begin to produce surfactantSensory brain waves begin to activateSensory brain waves begin to activateInner Ear Bones HardenBone marrow starts making blood cellsBone marrow starts making blood cellsBrown fat surrounds lymphatic systemFetal sexual organs visibleFinger and toe prints appearFinger and toe prints appearHeartbeat can be detectedHeartbeat can be detectedBasic Brain Structure in PlaceThe Appearance of SomitesFirst Detectable Brain WavesA Four Chambered HeartBeginning Cerebral HemispheresFemale Reproductive SystemEnd of Embryonic PeriodEnd of Embryonic PeriodFirst Thin Layer of Skin AppearsThird TrimesterSecond TrimesterFirst TrimesterFertilizationDevelopmental Timeline
Click weeks 0 - 40 and follow fetal growth
Google Search artcles published since 2007
 
August 5, 2011--------News Archive

Prenatal Stress Linked with Accelerated Cell Aging
Research points to critical role of maternal health and well-being during pregnancy.

Mutation Linked With the Absence of Fingerprints
Rare genetic mutations prove useful as a tool for investigating unknown aspects of our biology.


August 4, 2011--------News Archive

Pregnancy Diet Decreases Baby's Breast Cancer Risk
Era of Hope conference to feature compelling research examining benefits to daughters based on mother's diet in pregnancy.

Quick, Low-Cost Tests For Child Development Delays
Study confirms accuracy of developmental screening tests that can be administered by family physicians.


August 3, 2011--------News Archive

Helping Children Learn to Understand Numbers
It's all in the way we speak to them.

Pilot Study Suggests New Approach for Preeclampsia
Apheresis-based treatment may prolong pregnancy.

The Dark Side of Oxytocin
The "cuddle chemical" can also stir emotions like envy and gloating.


August 2, 2011--------News Archive

New Light on the Mechanisms of Brain Development
Study has implications for understanding brain disorders rooted in development, such as autism.

Why Autistic Individuals Confuse Pronouns
Impaired communication between areas of the brain causes autism and disrupts concept of 'self'.


August 1, 2011--------News Archive

Fast Ripples Mark Brain Seizure Activity in Children
Resection surgery of brain regions with fast ripples may improve seizure outcome.

Caloric Restriction and Female Infertility
Scientists tested the effects of caloric restriction on eggs produced by aging mice, and found they were better quality than age-matched mice fed a normal diet.

70 Percent of 8-Month-Old Babies Eat Too Much Salt
Due to being fed salty and processed foods like yeast extract, gravy, baked beans and tinned spaghetti, United Kingdom infants have too much salt in their bodies.

WHO Child Growth Charts


Could envy be the opposite of love?

For a hormone, oxytocin is pretty famous. It's the "cuddle chemical"—the hormone that helps mothers bond with their babies. Salespeople can buy oxytocin spray on the internet, to make their clients trust them. It's known for promoting positive feelings, but more recent research has found that oxytocin can promote negative emotions, too.

The authors of a new review article in Current Directions in Psychological Science, a journal of the Association for Psychological Science, take a look at what oxytocin is really doing.

Oxytocin's positive effects are well known. Experiments have found that, in games in which you can choose to cooperate or not, people who are given more oxytocin trust their fellow players more.

Clinical trials have found that oxytocin can help people with autism, who have trouble in social situations. Studies have also found that oxytocin can increase altruism, generosity, and other behaviors that are good for social life.

But the warm fuzzy side of oxytocin isn't the whole story.

"Quite a number of studies have shown it's actually not that simple," says Andrew Kemp of the University of Sydney, who cowrote the paper with his colleague Adam Guastella. Recent studies have found that people who were given oxytocin, then played a game of chance with a fake opponent, had more envy and gloating. These are also both social emotions, but they're negative.

"It kind of rocked the research world a little bit," Kemp says. That led some researchers to think that oxytocin promotes social emotions in general, both negative and positive.

But Kemp and Guastella think oxytocin's role is slightly different. Rather than supporting all social emotions, they think it plays a role in promoting what psychologists call approach-related emotions. These are emotions that have to do with wanting something, as opposed to shrinking away.

"If you look at the Oxford English Dictionary for envy, it says that the definition of envy is to wish oneself on a level with another, in happiness or with the possession of something desirable," Kemp says. "It's an approach-related emotion: I want what you have."

Gloating is also about approach, he says; people who are gloating are happy—a positive, approach-related emotion—about having more than their opponent and about that person's misfortune.

If Kemp and Guastella are right, that could mean that oxytocin could also increase anger and other negative approach-related emotions. That could have important implications for people who are studying how to use oxytocin as a psychiatric treatment.

"If you were to take a convicted criminal with a tendency towards aggression and give him oxytocin to make him more social, and if that were to enhance anger as opposed to suppressing anger, then that has very substantial implications," Kemp says.

Further research will show more about what emotions are promoted by oxytocin, Kemp says.

"This research is really important because we don't want to go ahead and attempt to treat a range and variety of psychiatric disorders with oxytocin without fully understanding the impact this may have on emotion and mood."

Original article: http://esciencenews.com/articles/2011/08/01/the.dark.side.oxytocin