Sentences with phrase «human experiments since»

STAT examined data reporting for all institutions — federal agencies, universities, hospitals, nonprofits, and corporations — required to report results to ClinicalTrials.gov for at least 20 human experiments since 2008.

Not exact matches

Ever since the Enlightenment there has been a progressive tendency to deny original sin as an offense to human dignity, and to promote experiments in reaching for divinity.

«There would, however, be a method by which, if the orangutan and others were of the human species, the crudest observers could assure themselves of it even by demonstration; but since a single generation would not suffice for this experiment, it must be considered impracticable, because it would be necessary for what is only an hypothesis to be already proved true before the experiment that was to prove it true could be tried innocently.»

Similarly, the status of the human embryo, and the value placed upon it, have come under increasing scrutiny over the past decades, and even since DP in 2008 it has become increasingly normal to assume that it is morally acceptable to destroy embryos or to experiment upon them.12 The increasing sense of a loss of respect for human life in its earliest stages is linked to the abandonment of male - female lifelong marriage as the normal structure in which human life begins and is cherished.13 DP emphasises that «human procreation is a personal act of a husband and wife, which is not capable of substitution» (DP 16).

For, after all, the result of every scientific experiment is ultimately a subjective one, since it is human beings who decide whether a theory is proved or not.

Since our readers are looking for experiments to try with their 5 - 12 year olds, we feel that making a parallel comparison of «breathing» or respiration for plants and humans helps children to better understand the process of photosynthesis at a younger age.

«Since these proteins are evolutionarily conserved from fruit flies to humans, experiments of this type tell us a lot about how their human versions normally work or can go wrong.»

Despite a dearth of human studies, more than 400 experiments have been done since the early 1970s to determine how cell phone radiation affects animals, cells and DNA.

The experiments were carried out in mice, but since there are also time - of - the - day dependent differences in body temperature in humans, it is to be expected that the mechanism also plays an important role in human physiology.

Since this amoeba possesses an innate defense system similar to that of humans, while being genetically modifiable, the researchers can therefore carry out experiments on it in order to understand and fight genetic diseases of the immune system.

Since 2009 NIH guidelines have prohibited funding experiments in which human stem cells are injected into primate embryos or in which human - animal chimeras breed.

Since alkaline phosphatase, coupled to the secondary antibody for the BrdU primary antibody, may have complicated the interpretation of the wounding experiments, we also treated human corneal - limbal tissues with BrdU histochemical assays in which fluorescein, rather than alkaline phosphatase, was coupled to the secondary antibody.

These methods integrate single - cell experiments and discrete stochastic analysis to predict complex gene expression and signaling behaviors in Saccharomyces cerevisiae — or yeast, a scientific - lab standard since yeast and human cells share many genes.

Since the discovery (in a human patient named H.M.) that hippocampal removal can lead to the inability to form new memories, the hippocampus has been studied as one of the primary sites of memory formation in the brain.12 While it has also been known since O'Keefe and Dostrovsky's initial experiments that the hippocampus plays a basic role in spatial navigation, how and why this tiny portion of the brain can host both spatial maps and complex memories has remained poorly undersSince the discovery (in a human patient named H.M.) that hippocampal removal can lead to the inability to form new memories, the hippocampus has been studied as one of the primary sites of memory formation in the brain.12 While it has also been known since O'Keefe and Dostrovsky's initial experiments that the hippocampus plays a basic role in spatial navigation, how and why this tiny portion of the brain can host both spatial maps and complex memories has remained poorly underssince O'Keefe and Dostrovsky's initial experiments that the hippocampus plays a basic role in spatial navigation, how and why this tiny portion of the brain can host both spatial maps and complex memories has remained poorly understood.

And, since scientists have already mapped the adult roundworms» neurons anatomically and functionally, they can easily perform experiments and trace neural circuits in C. elegans tasks that are not possible in humans, yielding valuable information about both species.

The experience was a bit bewildering at first, since the studio is a laboratory where the artist has more than a dozen «experiments» going simultaneously: a giant firefly contraption takes up a swing - set zone; materials for an upcoming performance are laid out on every surface of the seating and sofa zone; fish tanks surround a computer zone and provide the staging ground for an oceanic corral project; dozens of human arm forms, cast in a Black Power salute and cast in gold, are lined up along a wall, in preparation for a huge installation in Washington, D.C. this fall; a 3 - D printer is on pause as it creates Lilliputian figures for who - knows - what; and everywhere are various staging grounds of plastic models which will eventually be sprayed in gold and mounted on pins, to create Kaino's now - signature six - foot - tall, glittering gold pin drawings that suggest atomized worlds.