TAPPING DIVERSE EXPERIENCES: TOWARD ARTICULATING KNOWELDGE CREATION THEORY

Tapping diverse experiences is recognised as important for knowledge creation. The authors examine how learning and knowledge creation are affected if a distinction between the extent and nature of employees' involvement, and differences in levels within these, is made. They offer propositions suggesting that the extent and nature of employees involvement differ in their relative contribution to different facets of knowledge creation, including shared understanding, know-why, knowledge creating behaviours and new product creativity. Finally, the authors discuss theoretical implications, future research directions and limitations of this research.</p

Non-Invasive Induction Link Model for Implantable Biomedical Microsystems: Pacemaker to Monitor Arrhythmic Patients in Body Area Networks

In this paper, a non-invasive inductive link model for an Implantable Biomedical Microsystems (IBMs) such as, a pacemaker to monitor Arrhythmic Patients (APs) in Body Area Networks (BANs) is proposed. The model acts as a driving source to keep the batteries charged, inside a device called, pacemaker. The device monitors any drift from natural human heart beats, a condition of arrythmia and also in turn, produces electrical pulses that create forced rhythms that, matches with the original normal heart rhythms. It constantly sends a medical report to the health center to keep the medical personnel aware of the patient's conditions and let them handle any critical condition, before it actually happens. Two equivalent models are compared by carrying the simulations, based on the parameters of voltage gain and link efficiency. Results depict that the series tuned primary and parallel tuned secondary circuit achieves the best results for both the parameters, keeping in view the constraint of coupling co-efficient (k), which should be less than a value \emph{0.45} as, desirable for the safety of body tissues.Comment: IEEE 8th International Conference on Broadband and Wireless Computing, Communication and Applications (BWCCA'13), Compiegne, Franc

The Harpies episode in Aeneid 3

The episode of the Harpies (in Aen. 3.209ff.) has often been interpreted as a consequence of Aeneas’ alleged lack of devotion: on the contrary, Vergil repeatedly stresses the Trojans’ moral integrity and blameless behaviour

Evaluation of wheat by polyacrylamide gel electrophoresis

In this study 15 wheat varieties namely Nacozari-76, Ouqab, Tatar-96, Bakhtawar-92, Yecura-70, Raj, Bakkar, Sulilman-96, Pirsabak-05, Maria, Khyber-87, Fakhr-e-Sarhad, Pirsabak-04, Inqulab-91 and Rawal-87 were evaluated for analysis of variability in seed storage proteins by using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). Electrophorogram for each variety were scored and presence or absence of each band noted and was entered in a binary data matrix. Based on the data of SDS-PAGE gels cluster analysis was performed to check the variations among varieties. The overall result shows low degree of heterogeneity however different varieties reveal differential protein banding pattern. It is concluded that SDS-PAGE analysis of wheat endosperm protein is useful for evaluation of genetic variability and cultivars identification that help in wheat breeding program

Influence of seed invigoration techniques on germination and seedling vigor of maize (Zea mays L.)

The objective of this study was to assess the comparative efficiency of different priming techniques on germination and early seedling growth of maize cultivars. Laboratory experiments were conducted to examine the efficacy of different seed invigoration treatments on seed germination and vigor traits of three maize hybrids, Pioneer 3025, Pioneer 70 and Baber at Agronomy research laboratory, University of Agriculture, Peshawar, Pakistan. The experiment was laid in completely randomized design (CRD) and was replicated thrice. The treatments included control treatment (T1) unsoaked/dry seed, (T2) hydropriming with distilled water for 24 hrs, (T3) halo priming treatments with NaCl (3% solution) for 24 hrs, (T4) osmopriming with PEG-6000 for 24 hrs and (T5), hormonal priming with GA3 for 24 hrs. The results showed that seed invigoration treatment with gibberellic acid (GA3) PEG-6000 and hydropriming with distilled water for 24 hrs gave higher germination, decreased days to 50% germination, increased shoot length, root length, seedling fresh and dry weight, as compared to halo priming with NaCl and control treatment. It is concluded that seed invigoration with GA3, osmopriming with PEG-6000 and hydropriming with distilled water for 24 hrs serve as an appropriate treatment for accelerating the emergence and growth parameters of maize hybrid. Pioneer 3025 showed its superiority over other cultivars in all the studied parameters

Retinoblastoma tells the story of our health care system

Objective: To review cases of retinoblastoma. Setting: Department of Pathology Aga Khan University Hospital Karachi. Method: Twenty three specimens from cases of retinoblastoma received over a period of eight years were routinely processes and stained with haematoxylin and Eosin stain Other stains were used for tuberculosis and melanin. Immunochemistry was resorted to in undifferentiated tumors. Results: Over 60% cases of retinoblastoma were diagnosed after 5 years and nine cases showed involvement of opti-nerve. Conclusion: Late diagnosis of retinoblastoma effects the stage of the tumors and the prognisis

Kinetic and thermodynamic study of oxidative degradation of acid yellow 17 dye by Fenton-like process: Effect of HCO3−, CO32−, Cl− and SO42− on dye degradation

We report here the degradation of AY-17 dye using Fenton-like process (H2O2/Fe3+). The maximum degradation (83%) of AY17 dye is achieved at pH 3 in 60 min, with optimum concentrations of AY 17 (0.06 mM), H2O2 (0.9 mM), and Fe2+ (0.06 mM). The scavenging effects of HCO3−, CO32−, Cl− and SO42− on dye degradation are also examined. The activation energy (Ea), activation enthalpy (rH*), and activation entropy (rS*) are calculated for the dye degradation using pseudo-first-order kinetics at various temperature.               KEY WORDS: Acid Yellow 17, H2O2/Fe3+, Fenton-like process, Oxidative degradation, Scavenging effects Bull. Chem. Soc. Ethiop. 2019, 33(2), 243-254.DOI: https://dx.doi.org/10.4314/bcse.v33i2.