A simple and rapid method for the determination of amphetamine, methamphetamine, and their 3,4-methylenedioxy derivatives in urine samples was developed using automated in-tube solid-phase microextraction (SPME) coupled with liquid chromatography-electrospray ionization mass spectrometry (LC-ESI-MS). In-tube SPME is an extraction technique for organic compounds in aqueous samples in which analy...

OBJECTIVE To investigate the possible association between untreated ADHD symptoms (as measured by the Adult ADHD Self-Report Scale) and persistent nonmedical use of prescription stimulants. METHOD Multinomial regression modeling was used to compare ADHD symptoms among three groups of college students enrolled in a longitudinal study over 4 years: (1) persistent nonmedical users of prescriptio...

Cellular stimulating factors on cell proliferation in the supernatants of chick embryo carcases and adult muscles were studied. There were plural stimulating factors in embryonic and adult muscular supernatants that promoted cell proliferation without any supplement of sera and other materials. Salting-out methods with ammonium sulfate, ethanol fractionation, and isoelectric precipitation were ...

It is estimated that 2-3% of children in the US have hypertension (HTN) and 8% of children ages 4-17 carry the diagnosis of attention-deficit hyperactivity disorder (ADHD). The prevalence of HTN and cardiovascular (CV) risk factors in children with ADHD on CNS stimulant treatment (stimulants) compared to no treatment and compared to their healthy counterparts is not well described. Using Nation...

The feed additives are the essential compound of fish diet. use in animal’s diet is a vital role to rising growth and immunity aquatic animals. Feed substances which added trace amounts it also act as ingredients improver or preserve it. major preservatives, binders, feeding stimulants, food colorants etc. In favor growing aquaculture supportable fashion, must be correct amount. requirement dep...

Prescription stimulants are often used to treat attention deficit hyperactivity disorder (ADHD). Drugs like methylphenidate (Ritalin, Concerta), dextroamphetamine (Dexedrine), and dextroamphetamine-amphetamine (Adderall) help people with ADHD feel more focused. However, misuse of stimulants by ADHD and nonaffected individuals has dramatically increased over recent years based on students' misco...

Objective To present a case series of children retrialed on stimulants after initial poor stimulant responses given the paucity of information on the usefulness of this strategy. Methods Health records from an ADHD medication service were obtained for six children who: (i) were medication naïve at service entry; (ii) had trials of at least one stimulant from each stimulant class; (iii) subseq...

Recent evidence indicates that the illicit use of prescription stimulants such as Adderall and Ritalin is common across college campuses and in professions (e.g., trucking) where staying awake and focused is valued. Existing research has established use patterns and explored respondents' reasons for using these stimulants. Less is known, however, about whether or how well mainstream criminologi...

We extend and apply theories of filled foam elasticity and failure to recently available data on foods. The predictions of elastic modulus and failure mode dependence on internal pressure and on wall integrity are borne out by photographic evidence of distortion and failure under compressive loading and under the localized stress applied by a knife blade, and by mechanical data on vegetables di...