Checking and correction of data were required before the data could be used: a common problem was erroneous units, values below detection limits coded in different ways, as well as numerous other irregularities; Data quality was further checked by revealing outliers and testing well established relationships (e.g., between conductivity and alkalinity, chlorophyll -a and TP).
While no published data has reported the prevalence of problem alcohol use among patients on methadone treatment, a recently published qualitative survey of patients attending primary care for methadone treatment has suggested problem alcohol use may be a common problem, with patients possibly even substituting opiate dependency with alcohol dependence [ 11].
Detroit and Toronto also used to share a common problem back in the 90's in that we had talent, but couldn't really find a way to voice it because it was all about NY or LA.
Shrub encroachment can be explained by the abandonment of extensive livestock farming and changes to land use, and it is a common problem in the Mediterranean mountain pastures of Europe, with direct effects on biodiversity and landscape quality.
Let's use an example of a common problem that most businesses face at some point in their lifecycle (if not at multiple points), which is needing to implement a certain application or toolset to automate an existing manual process.
Co-morbidity with substance use disorders (SUD) is a common problem in patients with psychotic disorders.
Studies of knowledge, attitudes, and practices indicate that unsafe use of pesticides is a common problem in Latin American countries (Cervantes Morant 2010).
In the world there are several centers that are using such techniques and a common problem that is being experienced is the verification of treatment plans and monitoring of the beam.
None of the negative controls contained red deer DNA, but some samples showed contamination from cattle (Bos taurus) when using primer pair II, a common problem in aDNA studies [ 64].
The clinical effectiveness of inhalation therapy derives from delivery of the drug to target sites in the lungs, and evidence is mounting that incorrect use of inhaler devices is a common problem contributing to incomplete asthma control for many patients.
