Sentences with phrase «lack controlled studies»

Plus, some of these alternative therapies lack controlled studies showing effectiveness, and a veterinarian should always be consulted before any therapy — traditional or otherwise — is implemented.

Some of these more non-traditional, alternative or adjunct approaches lack controlled studies of their effectiveness and may not have established quality control methods or ways to assess their benefit to dogs with separation anxiety.

Some of these adjunct approaches lack controlled studies of their effectiveness and may not have established quality control methods or ways to assess their benefit to dogs prone to motion sickness.

Not exact matches

For example, the anxious group read sentences like «safety is not guaranteed in our neighborhoods nor in our own homes,» which was intended to highlight the «lack of control over negative circumstances that may happen in life and an uncertain future,» according to the study.

Although billions of dollars are being expended annually on family planning services in less - developed countries, and such programs have been promoted by various governments at the national level for four decades, there are only a few studies that have attempted to measure the demographic and health impact of family planning against a «control group» — a similar area which lacks the service.

Most studies displayed faults ranging from lack of control groups to use of biased and unreliable measuring instruments to the use of subjects who were either self - selected or selected by abortion clinic personnel.

He cites to studies that have low numbers of patients, don't report platelet concentrations and lack control groups.

If however many MDs aren't practicing evidence - based medicine, then why not don't MDs * police their own * before going off on other professions for their lack of evidence - base... or attacking what evidence - base there is even if it isn't multiple double - blind placebo controlled studies funded by wealthy drug manufacturers?

But the truth is we lack well - designed, controlled studies to resolve these questions.

But I will tell you this is timely, because another study came out in November 2015 that controls for the intensity of breastfeeding; which, other studies may have lacked that element in that they just looked at any breastfeeding.

One study found that bedroom heating, compared with no bedroom heating, increases SIDS risk (OR: 4.5), 235 and another study has also demonstrated a decreased risk of SIDS in a well - ventilated bedroom (windows and doors open)(OR: 0.4).296 In 1 study, the use of a fan seemed to reduce the risk of SIDS (adjusted OR: 0.28 [95 % CI: 0.10 — 0.77]-RRB-.297 However, because of the possibility of recall bias, the small sample size of controls using fans (n = 36), a lack of detail about the location and types of fans used, and the weak link to a mechanism, this study's results should be interpreted with caution.

A recent study in the Proceedings of the National Academy of Sciences USA tying childhood self - control to health and well - being in adulthood suggests that everyone, not just those most lacking the skill, would benefit from a self - control boost.

According to Goldin, however, the study lacked reliable controls.

While a clinician may find it difficult to parse whether a patient's stilted conversational manner is rooted in a lack of emotional connection or problems forming words, a brain scan in Belger's study made it clear, for example, that particular symptoms were more closely associated with disruption in the brain's emotional processing areas, whereas other symptoms were more closely associated with regions responsible for language and motor control.

The study also demonstrated for the first time impaired goal - directed control and lack of cognitive plasticity early in the development of OCD.

However, prior to this study there has been a lack of randomized controlled trials with a long - term follow - up that compare the effectiveness of noninvasive treatments.

Promising results from the new trial would be a major step forward for a field that has long been criticized for studies that are poorly designed, incomplete or lack control - group comparisons, as well as for the peddling of unproved therapies in many clinics worldwide.

Lack of sleep affects appetite, too: A 2012 Swedish brain - scan study identified heightened activity in the right anterior cingulate cortex — a brain region associated with hunger control — in the sleep - deprived.

After a series of studies confirmed the activity and lack of toxicity, Lee sent double - blinded samples of the compound and control to a colleague at the BSL - 4 lab at the University of Texas Medical Branch at Galveston who tested it against Nipah, Ebola and other viruses.

A second letter, from David Hawkes, a viro logist at the University of Melbourne in Australia, and two colleagues argues that the paper «lacks a clear methodology, adequate controls to control for bias, descriptions of results consistent with the data presented, or enough information for this study to be reproduced.»

Still, «despite the lack of controlled data, there are some things that appear so frequently and prominently in Ebola virus disease survivors that we feel comfortable attributing them to [Ebola],» says senior study author Daniel Bausch, a physician on WHO's Clinical Care Team for Ebola.

Other researchers who study male elephants attributed the young males» abnormal behavior to their surging hormones and lack of social learning — both of which were controlled after older male elephants were introduced.

The small number of patients and the lack of controls means that the study is not definitive, but it casts significant doubt on the effectiveness of the hormone in children who make normal levels of growth hormone, he says.

In particular, he criticises the study's lack of controls — children who received no hormone and whose growth could be compared with that of the treated group.

Bailey agrees Lippl's findings are interesting but laments the study's lack of a control group staying at low altitudes.

In 2008, an American study found participants more likely to perceive connections between unrelated events when first asked to recall a time when they lacked control.

A systematic review of published studies on the use of medical cannabis in children and adolescents finds a notable lack of studies and a minimal number of the randomized, controlled trials needed to confirm the effectiveness of a treatment.

There's a lack of controlled clinical studies about the leaf's impact on the body, Grundmann says.

Two studies investigating the use of cannabis for spasticity and three case report on use for neuropathic pain, post-traumatic stress disorder or Tourette syndrome all lacked controls or blinding, conferring a high risk of biased findings.

To study this barrier and determine why a lack of blood flow causes it to leak, the researchers built a blood - vessel - on - a-chip model consisting of a channel lined with a layer of human endothelial cells surrounded by extracellular matrix within a microfluidic device, which allowed them to easily simulate and control the flow of blood through a vessel and evaluate the cells» responses.

Researchers compensate for the lack of control by using large sample sizes — some vitamin D studies track 50,000 people — and applying statistical techniques.

But the intense focus on a specific topic, the monotony of bench work, the lack of control over which projects would be pursued, and the limited opportunities for advancement (without devoting several years to further graduate and postgraduate study) were sometimes frustrating.

Various types of meditation have been shown to improve well - being among different populations such as physicians and the general public.14, 15, 16 Preliminary evidence suggests that meditation - based interventions may slow cellular aging rates by increasing telomerase activity, but many such studies lacked an active control group.17, 18 Recent randomized trials in breast cancer suggest that long - term intensive meditation interventions might have positive effects on telomerase activity.

Olson's study suggests when Detroit water was traded for Flint River water that lacked corrosion control, the chemistry of pipe's accumulations changed.

Despite the lack of a placebo control group in this study, this finding suggests that ApoC - III impairs TG clearance predominantly in an LPL - independent fashion.

Most studies of self - control development have focused either on very young children or adolescents, but there is a lack of research on children in kindergarten and primary school, a transition period that requires children to regulate their behaviour.

For example, transgenic mice lacking dopamine, a key brain chemical for motor control, provide an integral animal model for studying the changes in brain dynamics during the induction and recovery from an induced Parkinsonian state.

A cosmetics industry representative interviewed for this story pointed out that the EWG report «lacks many of the rigors that you would normally associate with a real scientific report,» such as a large study population and control or placebo groups.

The policy change provided Phillipi and her colleagues with a handy way of assessing before - and - after changes in pacifier use and breast - feeding, but their analysis lacks the rigor of a carefully designed and controlled study.

Another study which wanted to eliminate this particular limitation examined the impact that 8 grams of creatine had on muscle size and strength taken immediately after or before workout sessions, while at the same time adding a control group which took a placebo lacking creatine.

While the exact way that losing sleep may contribute to obesity is not understood, studies have shown that lack of sleep affects the parts of the brain that control pleasure eating.

Furthermore, the studies were generally of poor study design with few participants and lack of control group.

Unfortunately anosmia is a poorly researched illness, and there is a lack of controlled studies on complementary and alternative anosmia therapies.

This is rather ironic, considering that all available evidence from our studies shows that restricting calories is a completely ineffective method of weight control (see article — The Lack of Evidence for Caloric Restriction).

Whereas enthusiasm for fasting is increasing, clinical relevance remains low because of insufficient human data, including almost nonexistent controlled trials (21, 33 — 36), few clinical outcomes studies (37, 38), lack of correction for inflated type I error rates from multiple hypothesis tests, and limited safety data (39 — 41).

In some of the studies, the lack of control for concomitant changes in the intake of macronutrients makes the data difficult to interpret.

Years ago, few yoga studies were done in the West, and most scientists dismissed Indian yoga research due to methodological problems, such as a lack of control groups in the studies.

2013 and 2007 studies of the DC voucher program found the program to be severely lacking in administration, oversight, and quality controls.

Dick Shultz makes some interesting comments about our study, the main criticism apparently being the lack of a comparison group, and Dick makes some suggestions for how alternative «controls» could have been created.

The Center for American Progress (CAP) identified some of these obstacles in a November 2012 study of early - adopter states, including restructuring and staffing state education agencies; lack of capacity and the tight fiscal climate; debates concerning local control and the proper role of the state; training administrators who will be conducting new teacher evaluations; and determining how to evaluate teachers who do not teach in tested subjects or grades and therefore lack student achievement data (McGuinn, 2012).