Animal experiments with levonorgestrel have shown virilization of female fetuses at high doses.
Where possible, we replace
our animal experiments with in vitro models, such as organoids, reducing the number of laboratory animals.
Not exact matches
The lesson here isn't that many sporting events would be more fun if they included unexpected intrusions by zoo
animals or that scientists come up
with some pretty weird
experiments (though both, in my opinion, are true).
For more than decade, she's
experimented with creating meat - free alternatives to the
animal protein - heavy foods she grew up eating in Guam.
We can trace DNA back, transitional fossils,
experiment with animals, E. coli, etc..
As I stated in my original article, prior to conducting
experiments with human cells, ANT - OAR techniques would need to be rigorously tested in
animal models to establish a procedure that guarantees
with reasonable certainty that an embryo is not generated.
Due to the limited statistical and methodological certainty allowed by biological science, the occurrence of technical errors in biological
experiments, the differences between human and
animal embryo development, the rapidity by which the cloning procedure produces a totipotent zygote, and the philosophical and theological nature of the question, there is no biological
experiment that will prove
with moral certainty that a human zygote never exists during the OAR procedure.
The
animal went through half the
experiment with no problems, generating exactly the results we expected.
His
experiments allowed the transitive inference to be accomplished
with images of the order of the stimuli in the series, though exactly how the
animals reasoned is not understood.
The US government have done extensive
experiments with animals where they've found roughly one in ten of them (given an equal choice) repeatedly show a sexual preference for the same sex — the
animals, not the US government.
This is done routinely in
experiments with animals and occasionally
with human patients undergoing neurological treatment.
Duranty's morals are neatly summed up in one of his 1935 dispatches: «It may be objected that the vivisection of living
animals is a sad and dreadful thing, and it is true that the lot of [those] who have opposed the Soviet
experiment is not a happy one,» but «in both cases, the suffering inflicted is done
with a noble purpose.»
Animal Research: For nearly four decades, the animal liberation movement has been at war with medical research conducted on animals — even though conducting such experiments before trying new drugs or procedures on people is a crucial human rights protection established in the Nuremberg
Animal Research: For nearly four decades, the
animal liberation movement has been at war with medical research conducted on animals — even though conducting such experiments before trying new drugs or procedures on people is a crucial human rights protection established in the Nuremberg
animal liberation movement has been at war
with medical research conducted on
animals — even though conducting such
experiments before trying new drugs or procedures on people is a crucial human rights protection established in the Nuremberg Code.
Those who feel there is something «unnatural» about introducing human genes into
animals or plants forget that we share a high proportion of our genes
with these species already: it is precisely this collective heritage that allows
experiments on frogs to spawn treatments for human cancer.
The main
experiments used to conduct this research are the Farming Systems Trial (FST)- the oldest continuous trial in the US that compares organic and conventional farming systems, the new Vegetable Systems Trial (VST)- comparing the impacts organic and conventional farming practices on nutrient density in vegetables and linkages to soil health, and Integrated Crop - Livestock Systems using annual and perennial crops along
with cattle or hogs for soil, plant, and
animal health.
Partly because I wanted to
experiment with «lessmeatarianism» — a way of eating that involved fewer
animal products.
In order to determine the lethal toxic level of capsaicinoids in
animals, and to extrapolate that level for humans, researchers in 1980 performed a rather gruesome
experiment with mice, rats, guinea pigs and rabbits.
I have been
experimenting more and more
with recipes that require eggs, and seeing as I try to avoid
animal products, using chia paste or chia eggs are a perfect substitution.
Converting to a plant based diet is a wonderful opportunity to
experiment with flavours and get in touch
with our creative sides whilst getting healthy and reducing harm to our environment and of course, the
animals.
Experience storytime
with real
animals in Raleigh, cocoa and snowball
experiments in Apex, fun
with anime and manga in Durham, and duct tape crafts in Raleigh.
-- Visit the Park — Help prepare dinner — Create a board
with «THINGS TO DO» — Have a healthy food art snack (Shape some veggies into an
animal)-- Paint — Relax and read a book — Practice the ABC's — Create a fun science
experiment — craft a project for the grandparents — Play a Scavenger Hunt — Do a Jigsaw Puzzle — Watch a documentary movie
This printed eyelash scarf (currently on sale for $ 29.50) from J. Crew Factory is available in several bold prints; the sweet hyacinth (shown) is a fun option is you want to
experiment with animal prints.
Experiment with a prop or two, such as a single stuffed
animal or a stool that your baby likes to pull up on.
We can not use randomized controlled
experiments with people but do so
with animals, demonstrating, for example in Michael Meaney's lab, that affectionate touch in early life is critical for epigenetic controls of anxiety in mammals.
Keep toys or a favorite token (lovey, blanket, stuffed
animal) in front of them so they can
experiment with moving their body and strengthen themselves to successfully sit up in their own time.
In July 2010, figures published by the Home Office showed that
experiments on
animals in the UK had fallen by 1 % to just over 3.6 million,
with a 10 % decrease in the number of toxicology tests carried out on
animals.
«
With the Government unwilling to include a ban on the use of stray cats and dogs in the update of the
Animals (Scientific Procedures) Act, the worry is that the number of experiments using animals may increase further in future years.
Animals (Scientific Procedures) Act, the worry is that the number of
experiments using
animals may increase further in future years.
animals may increase further in future years.»
With vast differences in the physiology of different species and poorly conducted
experiments, it comes as no surprise that 92 % of all drugs that are shown to be safe and effective in
animal tests prove to be ineffective or even dangerous to humans.
When the researchers presented plans for their study to tribe members who were trained research assistants, the assistants protested that the
experiment — which involved watching children play
with toy
animals — was not culturally appropriate.
That's why hair care manufacturers have
experimented for decades
with animal - and plant - based proteins that could potentially replace the broken bonds in hair keratin.
- A Game of Hypothesizing, Dean Interpreting Data - Quantitative Analysis of Mixtures, Schwartz Defining Operationally - Biotic Community, Menhusen Cells and Magnification, Menhusen Reading Activity - Formulating Hypothesis, Hebeisen Reading Exercise - Oersted's
Experiment, Schwartz Formulating Hypotheses - Levers, Schwartz North by Compass, North by Shadow, Dennis Controlling Variables - Human Heart Rate, Phillips Effect of Practice on Memorization, Forgetting and Relearning, Mayor Learning About Line Graphs I, II and III, Dean Controlling Variables - Chemical Reactions, Livermore Chances Are, Hebeisen Interpreting Data -
Animal Behavior, Menhusen Working
with Solutions, Dean Defining Operationally - Inertia and Mass Stamp Out Trash, Hebeisen Interpreting Data Module - A Limited Earth: An Unlimited Population?
In similar
experiments,
animals with less NPAS4 in the nucleus accumbens took more time to form those early connections between environmental cues and cocaine, but they still sought the drug just as often during later simulated relapse.
Building the Picture Much of what we know about how neurons allow
animals to make sense of their surroundings began
with experiments performed on the visual cortex of
animals by David Hubel and Torsten Wiesel.
The key challenge was to figure out what the right question was, and then to formulate a model that could both answer it theoretically and lead to predictions that would be testable through observations and
experiments with real
animals.
In
experiments with animals, if we retrieve a memory and inject a drug that blocks the molecular process that leads to storage, the memory is lost.
Animal experiments revealed that mice carrying a mutated SCN8A gene had reduced heart rate compared
with their healthy littermates, and that administration of caffeine produced an abnormal heart rhythm known as accelerated idioventricular rhythm.
Although the Harvard criteria were based on zero patients and no
experiments were conducted either
with humans or
animals, they soon became the standard for declaring people dead in several states, and in 1981, the Uniform Determination of Death Act (UDDA) was sanctioned by the National Conference of Commissioners on Uniform State Laws.
In the present
experiment, the researchers studied
animals that learnt to associate a sound
with a puff of air in the eye that caused them to blink.
Chen agrees: He said his
experiment «carries much less risk of creating
animals with greater «brain power» than normal» because the human organoid goes into «a specific region of already developed brain.»
And instead of surmising the
animals» thinking from field observations or working
with a single trained subject, she conducted repeatable laboratory
experiments, carefully designed to rule out alternative interpretations,
with multiple birds whose history was uncorrupted by previous work.
Shettleworth calls the study «provocative,» but insists that further
experiments with more
animals are needed before Santino's behavior can be interpreted as advance planning.
Suzuki hopes to
experiment next
with animals that model muscular dystrophy and amyotrophic lateral sclerosis.
In a final
experiment, the group gave the
animals a compound that prevented LPA from binding to its receptor on mouse brain cells, right before they were injected
with hydrocephalus - inducing LPA.
Researchers had
experimented before
with injecting blood into
animal brains, to mimic a hemorrhage, and had indeed observed the onset of hydrocephalus.
Niko Tinbergen, a pioneering investigator of
animal behavior,
experimented with herring gulls 50 years ago, but the relevance of his work to evolutionary theory has not been widely appreciated.
Diamond's lab circumvented this problem by creating female mice that had a key interferon gene knocked out; in a second
experiment, they treated pregnant
animals with an anti-interferon antibody.
And an
experiment with mice showed that LDL cholesterol stuck around longer in the blood of the
animals who had eaten rice than in those who had not.
They call this form of activation «non-ligand-dependent,» and in a complex series of biochemical and
animal experiments, traced the pathway through which FER's binding to MET inside the cell sets off a cascade of cell - signaling events, all directly connected in prior research
with cancer initiation, including RAC1 / PAK1 and SHP2 - ERK.
The researchers are conducting ongoing
experiments that suggest they can, similar to
animals equipped
with eyes, Sumner - Rooney says.
And it's arresting to learn that Thomas Hunt Morgan turned to the fruit fly, Drosophila, as a tool for genetics
experiments not, as we are usually informed, because it bred quickly on cheap food, but because he had no funds
with which to purchase larger
animals.