搜索结果: 1-15 共查到“理学 Birth”相关记录53条 . 查询时间(0.116 秒)
Scientists detect characteristics of the birth of a major challenge to harvesting fusion energy on Earth
out of control electronics fusion energy damage of electronic
2021/8/11
Novel camera detects the birth of high-energy runaway electrons, which may lead to determining how to prevent damage caused by the highly energetic particles.
Birth of magnetar from colossal collision potentially spotted for first time（图）
Birth of magnetar colossal collision potentially spotted first time
2020/11/20
Long ago and far across the universe, an enormous burst of gamma rays unleashed more energy in a half-second than the sun will produce over its entire 10-billion-year lifetime.After examining the incr...
Scientists find much earlier birth date for Earth's tectonic plates（图）
Scientists earlier birth date Earth tectonic plates
2020/6/5
Geophysicists funded by the National Science Foundation have reported that Earth's ever-shifting, underground network of tectonic plates was firmly in place more than 4 billion years ago -- at least a...
An international team of astronomers used two of the most powerful radio telescopes in the world to create more than three hundred images of planet-forming disks around very young stars in the Orion C...
Evaluation of gestation length and birth weight of offspring of Polish native cattle breeds in context of estimating genetic parameters
pregnancy birth body weight heritability native breed
2018/11/23
Research material included data on gestation length of 15 436 cows of Polish native breeds. These were: White Backed (BG; 324 records), Polish Red (RP; 5396 records), Polish Black and White (ZB; 3508 ...
Effect of maternal high dosages of folic acid supplements on neurocognitive development in children at 4–5 y of age: the prospective birth cohort Infancia y Medio Ambiente (INMA) study
folic acid supplements folate pregnancy periconception period child neurocognitive development
2018/11/16
Background: The benefits of the use of folic acid supplements (FASs) during the periconception period to prevent neural tube defects and to ensure normal brain development in offspring are well known....
UA Astronomers Track the Birth of a ‘Super-Earth’（图）
UA Astronomers Track the Birth Super-Earth
2017/7/24
A new model giving rise to young planetary systems offers a fresh solution to a puzzle that has vexed astronomers ever since new detection technologies and planet-hunting missions such as NASA's ...
Star’s Birth May Have Triggered Another Star Birth,Astronomers Say
Star’s Birth Another Star Birth Astronomers Say
2017/7/24
Astronomers using the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) have found new evidence suggesting that a jet of fast-moving material ejected from one young star may have tri...
Your birth year predicts — to a certain extent — how likely you are to get seriously ill or die in an outbreak of an animal-origin influenza virus, according to a study co-led by researchers from the ...
Prospective associations of maternal betaine status with offspring weight and body composition at birth: the Growing Up in Singapore Towards healthy Outcomes (GUSTO) cohort study
betaine pregnancy birth weight infants adiposity
2018/12/18
Background: Betaine supplementation results in lower body weight and fat mass and higher lean mass in animals and adult humans. However, the relation between maternal betaine status and offspring birt...
Comparison of associations of maternal peri-pregnancy and paternal anthropometrics with child anthropometrics from birth through age 7 y assessed in the Danish National Birth Cohort
intrauterine environment intergenerational relations parental BMI parental overweight child anthropometry childhood overweight
2018/12/3
Background: Maternal prepregnancy adiposity may influence child adiposity beyond the transmitted genetic effects, which, if true, may accelerate the obesity epidemic, but the evidence for this mechani...
Comparison of associations of maternal peri-pregnancy and paternal anthropometrics with child anthropometrics from birth through age 7 y assessed in the Danish National Birth Cohort
intrauterine environment intergenerational relations parental BMI parental overweight child anthropometry childhood overweight
2018/12/13
Background: Maternal prepregnancy adiposity may influence child adiposity beyond the transmitted genetic effects, which, if true, may accelerate the obesity epidemic, but the evidence for this mechani...
Mineral- and vitamin-enhanced micronutrient powder reduces stunting in full-term low-birth-weight infants receiving nutrition, health, and hygiene education: a 2 × 2 factorial, cluster-randomized trial in Bangladesh
full-term low-birth-weight infant hand hygiene hand sanitizer infants infection linear growth low birth weight micronutrient powder
2018/11/30
Background: The causes of stunting are complex but likely include prenatal effects, inadequate postnatal nutrient intake, and recurrent infections. Low-birth-weight (LBW) infants are at high risk of s...
ROLE OF FETAL THIGH CIRCUMFERENCE IN ESTIMATION OF BIRTH WEIGHT BY ULTRASOUND
Estimated Birth Weight Thigh Circumference
2015/8/3
To evaluate the accuracy and usefulness of predicting birth weight by measuring fetal thigh circumference by ultrasound. METHODS: In 110 pregnant women, fetuses without structural or chromosomal anoma...
Traveling waves for the Keller-Segel system with Fisher birth terms
Chemotaxis Traveling waves Keller-Segel system Reaction diffusion systems Nonlinear stability
2015/7/14
We consider the traveling wave problem for the one dimensional Keller-Segel system with a birth term of either a Fisher/KPP type or with a truncation for small population densities. We prove that ther...