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case studies and
sample work it can share with you.
Researchers at the National Institutes of Health want to understand why current dosages of the antidotes are failing in some
cases, yet the nationwide law - enforcement crackdown on opioid abuse means they're having a hard time getting permission to get
samples of the illegal products they need to
study.
Though it's clearly not a random
sample, let's just take our little comment thread as a
case study.
Maybe you should link these so called
studies in your posts... I'm willing to be they have small
sample sizes, use highly abnormal
cases, or have agendas.
However, this population - based,
case - control
study was limited by a low participation rate of 50 % among eligible
cases and 41 % among eligible controls and a small
sample size of 185 SIDS
cases.
The strongest research methods for psychological
studies are: qualitative findings versus quantitative; experimental rather than descriptive or correlational; controlled - experiment, meta - analysis, and observation designs over archival,
case study, computational modeling, content analysis, field experiment, interview, neuroimaging, quasi experiment, self - report inventory, random
sample survey, or twin
study; and prospective (where subjects are recruited prior to the proposed independent effects being administered) and longitudinal (where subjects are
studied at multiple time points) rather than retrospective or cross-section
study.
In this
study, the association of maternal alcohol drinking in the 3 months before or during pregnancy was of borderline significance on univariate analysis but was not significant when prenatal smoking and
case - versus - control status were in the model.39 However, this
study had limited power for multivariate analysis because of its small
sample size.
The
study focused on six
case studies of an illustrative
sample of different alternative food networks.
Senior author Madhav Dhodapkar, M.D., the Arthur H. and Isabel Bunker Professor of Medicine and Immunobiology, and chief of Hematology, said the
study, using tissue and blood
samples from humans and mice, shows that chronic stimulation of the immune system by lipids made in the context of inflammation underlies the origins of at least a third of all myeloma
cases.
They reached out to clinicians worldwide to identify patients with arhinia — before this
study only 80
cases had been reported during the past century — and gathered
samples for genetic sequencing.
Second, they considered the remaining SAGES
study sample to identify 36 matched pairs of
cases and controls, called the replication cohort.
Although the
sample includes only a tiny fraction of the roughly 9,000
cases who have survived the Ebola outbreak in that country, the
study does provide some insights into the issues survivors are facing and reaffirm what has been seen among survivors in prior outbreaks.
Indeed, U.K. labs have reported 21 similar poliolike
cases in cattle and sheep over the last 10 years, and
samples from some of those animals are now being
studied.
The
study cites the 1969
case of a British dockworker bitten by an unknown insect while unloading peanuts from Nigeria, and who was subsequently infected by Le Dantec virus, a relative of the virus Goldberg and his colleagues found in abundance in the bat flies they
sampled.
Less than 1 percent of the
sample said they would go to an emergency shelter and only as a «last resort» or in «a worst -
case scenario,» the
study found.
The
study boasts «huge
sample sizes on something people usually dream of having a few
cases of,» says evolutionary biologist Dennis Hasselquist of Sweden's Lund University.
This
study is the first of a new article type: Telemetry
Case Reports, being published by Animal Biotelemetry, which hopes to highlight small pilot
studies on single individuals or very limited
samples.
In both
cases, astronauts aboard an Orion spacecraft would then
study the redirected asteroid mass in the vicinity of the moon and bring back
samples.
«In the
case where molecules are chemically reactive, one simply doesn't have time to
study them in bulk
samples: They decay away before they can be cooled further to observe interesting states,» Zwierlein says.
For the
study, the researchers sequenced
samples from 25 sudden death
cases.
The authors also discuss determining the type of
case study,
sampling techniques, and determining the success and effectiveness of a
case study for particular objectives.
Sood and colleagues looked at
samples from 80
cases of human ovarian cancer grouped according to patient stress using the National Institutes of Health's Center for Epidemiological
Studies Depression scale as a surrogate marker.
Stegman supports the lunar dynamo theory, having published a 2003
study on it Nature, but cautions that the new results are based on one data point — in this
case, one lunar
sample.
Analysing blood
samples from a
study of 100,000 women showed that, in 88 per cent of
cases, the test could detect ovarian cancer 1 to 2 years before it is usually diagnosed (Genome Medicine, doi.org/ch2m).
In Maseru, a district of Lesotho where we have done a
case study, there are 47 clinics that collect blood
samples and six labs that analyse them.
«We employed a nationwide
sample with the highest number of schizophrenia
cases to date in a
study of this type.»
With its large
sample size, this
study had the power to find copy number variants with large effects that occur in more than 0.1 percent of schizophrenia
cases.
«It was a first - in - man
case study to validate our mouse
studies — now we have to do it in a larger
sample,» Halpern says.
Each of the two
study samples included 3,180 suicide
cases and 1,056,004 control patients.
Already on the ground
studying Lassa fever in Sierra Leone's Kenema Government Hospital, in collaboration with Tulane University, the group was positioned to analyze the first blood
samples when suspected
cases of Ebola appeared in the country.
Shoring up
cases for biosignatures and paleoenvironmental settings, including comparative
studies with Earth analogue
samples using the 2020 instruments, as well as better constraining the age of the deposits (within the early Mars window of wet surface environments), are all tasks ahead.
Similarly, it has been hypothesized that convenience of access biases the
sample of
cases studied (the
Researchers at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and UC Berkeley have created a sort of nanoscale display
case that enables new atomic - scale views of hard - to -
study chemical and biological
samples.
Although the
study had a large
sample size, the number of exposed ASD
cases was not large enough to provide a stable statistical estimate of the trimester - specific HR associated with influenza infection.
The researchers will conduct PFC analysis of randomly selected blood
samples from the mothers of 225 ASD
case children and 225 controls (TD) in the CHARGE
study, along with 1 to 3 blood
samples from 209 mothers in the MARBLES
study.
Data shared through RD ‐ Connect is accessible beyond the usual institutional and national boundaries and researchers across the world can benefit from the opportunity to work with others with an interest in the same field, pool data to create larger cohorts, find confirmatory
cases, and access
samples for further
study.
Although six subsequent
studies have been negative for XMRV, CFS was defined more broadly using only the CDC or Oxford criteria and
samples from the US were limited in geographic diversity, both potentially reducing the chances of identifying XMRV - positive CFS
cases.
The Lombardi et al.
study specifies that
samples were selected from patients fulfilling the 1994 international CFS
case definition [23] and the 2003 Canadian Consensus Criteria for CFS / ME [25].
The
study provides a large number of
cases (children with ASD) and controls (typically developing, or TD, children), along with blood
samples from mothers when their children were 2 to 4 years old.
Methods: We used whole - exome sequencing to detect the presence of CHIP in peripheral - blood cells and associated such presence with coronary heart disease using
samples from four
case - control
studies that together enrolled 4726 participants with coronary heart disease and 3529 controls.
Unlike the
study of Lombardi et al., we have failed to detect XMRV or closely related MRV proviral DNA sequences in any
sample from CFS
cases.
In some
cases, this trash moves up the food chain, and
studies at a California market found plastics in 25 percent of the fish
sampled.
In a new
case study published Friday in the U.S. Centers for Disease Control and Prevention (CDC)'s Morbidity and Mortality Weekly Report, the authors discuss a
case where a woman who had not traveled anywhere with ongoing Zika transmission came down with symptoms of the virus, including a fever and a rash, and her
samples tested positive for the virus in a laboratory in Maryland.
Other say that this is fine, just look at the numbers, and if all three
samples come back as positive (especially 3 + count like Jean, the
case study I just outlined to you) then you have a real problem on your hands.
This whole thing came about really, again, as I said, about 40 years ago, and it all came about due to some really small
sample - size based
studies which were, in a sense, kind of
case studies.
The strengths of the
study were the cohort design, large
sample size, and prospective data collection as well as the combination of screening, referrals, and registry linkage for detection of ASD
cases.
Regarding carbohydrate source, a diet with a low versus high glycemic index can be used to reduce HbA1c moderately (by ∼ 0.5 %).13
Case series and pilot
studies reveal more substantial improvements in HbA1c and other benefits (less hypoglycemia and reduced glycemic variability) with a very low — carbohydrate diet (VLCD).14 — 21 Although varying to some degree among
studies, a VLCD is typically defined as ≤ 20 to 50 g per day of carbohydrates or ≤ 5 % to 10 % carbohydrates as a proportion of calories.22 — 24 In T1DM, small
sample sizes and methodological issues limit the significance of VLCD benefits, and little is known about prevalence, practice, and sustainability.