Letter to the editor, "High intensity aerobic exercise improves bimanual coordination of grasping forces in Parkinson's disease".

We have read with utmost interest the article entitled, "High intensity aerobic exercise improves bimanual coordination of grasping forces in Parkinson's disease" by Jansen et al. They have highlighted the importance and feasibility of providing high intensity aerobic exercise on improving the bimanual coordination of grasping forces for the patients with Parkinson's disease (PD). We would like to highlight few methodological and statistical issues with the study for more effective use of the study results among the medical fraternity involved in rehabilitating the patients with PD.

Infection in cirrhosis: A prospective study.

Introduction And Objectives: Multidrug-resistant (MDR) infections in cirrhosis are associated with poor outcomes. We attempted a prospective study on infections in patients with cirrhosis evaluating microbiology of these infections and how outcomes depended on factors like bacterial resistance, appropriate antibiotics, stage of liver disease and whether outcomes were significantly different from patients who did not have infections.

Materials And Methods: This was a prospective evaluation involving one hundred and fifty nine patients with cirrhosis who were admitted at Peerless Hospitex Hospital and Research Center, Kolkata, West Bengal, India, during a 24 month period.

Intense blue upconversion emission and intrinsic optical bistability in Tm/Yb/Zn tridoped YVO phosphors.

Tm/Yb/Zn:yttrium metavanadate (YVO) phosphors prepared through chemical coprecipitation and the solid state reaction method have been structurally characterized by an x-ray diffraction (XRD) study. Photoluminescence study of the developed phosphors under ultraviolet (UV) and near infrared (NIR) excitation has been performed. The excitation spectrum of the tetragonal zircon type YVO phosphors corresponding to the emission at ∼476 nm exhibits a broad excitation peak in the 250-350 nm region, which is due to charge distribution in the [Formula: see text] group.

Photoluminescence study in Ho/Tm/Yb/Li:Gd(MoO) nanophosphors for near white light emitting diode and security ink applications.

Ho/Yb/Tm/Li:Gd(MoO) nanophosphors successfully synthesised via solid state reaction method have been structurally and optically characterised. Under 980 nm diode laser excitation the nanophosphors emit intense blue, green, red and NIR emissions peaking at ∼476 nm, ∼543 nm, ∼646 nm and ∼798 nm corresponding to the G → H (Tm), F, S → I (Ho), F  → I (Ho) and H → H (Tm) transitions respectively. The upconversion emission intensity enhancement in the Ho-Yb-Tm-Li:Gd(MoO) nanophosphors for the green band is found to be ∼367, ∼50 and ∼9 times compared to the singly Ho doped, Ho-Yb co-doped and Ho-Yb-Tm tri-doped Gd(MoO) nanophosphors.