Pulsed Ultrasound Does Not Affect Recovery From Delayed Onset Muscle Soreness

Aim: To investigate the effects of pulsed Ultrasound (US) in recovery from Delayed Onset Muscle Soreness (DOMS). Methods: Twelve healthy male athletes (mean age 23.83±1.697 year) performed an eccentric exercise protocol of non-dominant elbow flexors to induce muscle soreness on 2 occasions separated by 3 weeks. Subjects in experimental group received pulsed US (1 MHz, intensity 0.8 W/cm2, mark space ratio 1:10), whereas control group received sham US after 24 h, 48 h and 72 h. Perception of muscle soreness, active ROM and muscle strength were the parameters measured at 0 h, 24 h, 48 h and 72 h with the help of VAS, manual goniometer and JONEX muscles master instrument respectively. Results: Post hoc t test analysis revealed significant differences (p <0.05) between 0 h and 72 h in the parameter of ROM (t = 6.18) and muscle power (t = 2.54) as well as between 24 h and 48 h in the parameter of muscle soreness (t = 3.13) in control group. Similar differences were also observed in the experimental group. No significant inter-group differences at α level of 0.05 was observed in any parameter at any level. Conclusion: The pattern of recovery from DOMS was not influenced by the application of pulsed Ultrasound at the parameters discussed here

Subgap Two-Photon States in Polycyclic Aromatic Hydrocarbons: Evidence for Strong Electron Correlations

Strong electron correlation effects in the photophysics of quasi-one-dimensional $\pi$-conjugated organic systems such as polyenes, polyacetylenes, polydiacetylenes, etc., have been extensively studied. Far less is known on correlation effects in two-dimensional $\pi$-conjugated systems. Here we present theoretical and experimental evidence for moderate repulsive electron-electron interactions in a number of finite polycyclic aromatic hydrocarbon molecules with $D_{6h}$ symmetry. We show that the excited state orderings in these molecules are reversed relative to that expected within one-electron and mean-field theories. Our results reflect similarities as well as differences in the role and magnitude of electron correlation effects in these two-dimensional molecules compared to those in polyenes.Comment: 11 pages, 5 figures, 2 table

Distribution of Steroid like Compounds in Plant Flora

Medicinal herbs constitute an effective source of traditional (Ayurvedic, Unani and Homeopathy) and modern medicine. The plant is a biosynthetic laboratory, not only for chemical compounds, but also a multitude of compounds like glycosides, alkaloids etc. These exert physiological and therapeutic effect. The compounds that are responsible for medicinal property of the drug are usually secondary metabolites. Alkaloids, glycosides, neutral principles, resins, oleoresins, sesquiterpene lactones are some of the common active constituents of medicinal herbs. The article reviews distribution of steroid like compounds and their pharmacological importance

Distribution of Steroid-like Compounds in Plant Flora

Medicinal herbs constitute an effective source of traditional (Ayurvedic, Unani and Homeopathy) and modern medicine. The plant is a biosynthetic laboratory, not only for chemical compounds, but also a multitude of compounds like glycosides, alkaloids etc. These exert physiological and therapeutic effect. The compounds that are responsible for medicinal property of the drug are usually secondary metabolites. Alkaloids, glycosides, neutral principles, resins, oleoresins, sesquiterpene lactones are some of the common active constituents of medicinal herbs. The article reviews distribution of steroid like compounds and their pharmacological importance

Effects of package and storage conditions on the keeping quality of Perlette grapes

Einfluß der Verpackungs- und Lagerungsbedingungen auf die Haltbarkeit von Perlette-TraubenUm die Verluste zwischen Ernte und Verkauf von Perlette-Trauben zu verringern, wurde jeweils 1/4 eines SO2-Spenders („Dual Release" SO2 generator) in die 2 kg Trauben fassenden Polyäthylenbeutel gelegt; die Verpackungsbeutel waren mit Perforationen versehen, die 0,56; 0,84; 1,12; 1,40 und 1,68 % der Folienfläche ausmachten. Die gefüllten Beutel wurden bei 5, 15, 25, 30 und 35 °C (Freilandtemperatur) in belüftete 2-kg-Kartons aus Wellpappe verpackt und 60 d lang kühl gelagert (0-3 °C). Bei der Verkostung wurden die Trauben mit einer Verpackungstemperatur von 35 °C und 1,12%iger Perforation der Verpackungsqeutel am besten beurteilt. Die niedrigste Verpackungstemperatur (5 °C) und der niedrigste Perforationsgrad (0,56 %) verringerten beide den physiologischen Gewichtsverlust (PLW) und das Abfallen der Beeren am stärksten. PLW nahm mit der Dauer der Lagerung zu. Bis zu einer Lagerungsdauer von 40 d in zu 0,56 %, 0,85 % und 1,12 % perforierten Beuteln trat keine Beerenfäulnis auf; diese war jedoch auch bei erhöhter Perforation noch zu vernachlässigen. Die höchsten Mostgewichte wurden bei Verpakkungstemperaturen von 30 oder 35 °C nach 40tägiger Lagerung festgestellt; danach nahm das Mostgewicht ab. Die höchsten Säurewerte wurden bei Verpackungstemperaturen von 25 und 35 °C nach einer Lagerungsdauer von 40 d, bei 15 und 30 °C nach 60 d ermittelt. Demzufolge können PerletteTrauben durch beigepackte SO2-Spender in Folienbeuteln, die zu 1,12 % perforiert sind und Verpacken bei 35 °C bis zu 40 d erfolgreich gelagert werden

Room temperature magnetic imaging of magnetic storage media and garnet epilayers in the presence of external magnetic fields using a sub-micron GaAs SHPM

Cataloged from PDF version of article.A multipurpose room temperature scanning Hall probe microscope (RT-SHPM) system incorporating an ultra-high sensitive sub-micron GaAs Hall probe (active area of similar to0.8 x 0.8 mum(2) room temperature Hall coefficient of 0.3 Ohm /G) exhibiting extremely high magnetic field sensitivity (0.04G/root Hz) was used for the direct, non-invasive and quantitative imaging of magnetic field fluctuations in very close proximity to the surfaces of thin film magnetic storage media, Bi substituted iron garnet epilayers and demagnetized Sr-ferrite permanent magnets placed in external magnetic fields. A scanning tunnelling microscope tip integrated adjacent to the Hall probe was used for precise vertical positioning of the probe. RT-SHPM images of 1.4 MB written floppy disks clearly showed well-defined magnetic transitions to coalesce into small island-like structures under external perpendicular fields greater than 1300 Oe. The RT-SHPM is demonstrated to be a versatile means of quantitatively monitoring micron-sized magnetic domain structures in the presence of external magnetic fields at: room temperature. (C) 2001 Elsevier Science B.V. All rights reserved