Textbook of Physics – Simplified Vol II

CONTENTS CH 1 : ELECTRIC CHARGES AND FIELDS CH 2 : ELECTROSTATIC POTENTIAL AND CAPACITANCE CH 3 : CURRENT ELECTRICITY CH 4 : MOVING CHARGES AND MAGNETISM CH 5 : MAGNETISM AND MATTER CH 6 : ELECTROMAGNETIC INDUCTION CH 7 : ALTERNATING CURRENT CH 8 : ELECTROMAGNETIC WAVES CH 9 : RAY OPTICS AND OPTICAL INSTRUMENTS CH 10 : WAVE OPTICS CH 11 : DUAL NATURE OF RADIATION AND MATTER CH 12 : ATOMS CH 13 : NUCLEI CH 14 : SEMICONDUCTOR ELECTRONICS CH 15 : COMMUNICATION SYSTEM

ABCD Analysis of Task Shifting – An optimum Alternative Solution to Professional Healthcare Personnel Shortage

Task shifting is an optimum alternate solution in the healthcare system to address the acute shortage of professionally qualified healthcare workers in developing countries. This will temporarily help in solving the big problem of providing quality and timely health services to the needy people. Despite many trained health care professionals, our health care system is struggling to provide optimum services to the patients due to many reasons including the high burden of infectious diseases, emigration of trained professionals, difficult working conditions, and low motivation by country governments. Even though, the permanent solution to this problem is to create more professional doctors by increasing training courses, training facilities through modifying government policies and enhancing resources to do so, such actions and resultant solutions take a long time to realize in practice. Hence a quick optimum solution is needed to address the critical shortage of trained healthcare professionals. It is logically argued and in many places practically proven that out of many alternatives, the best alternative for healthcare executives in any hospital of primary health centres is the strategic decision of thinking and implementing the so called strategy of task-shifting. In this paper, we have analysed the process of task-shifting by considering its advantages, benefits, constraints, and disadvantages using an analysing technique called ABCD analysing framework. As per the ABCD framework, the various determinant issues of related to the task shifting for organizational health service performance are identified using focus group method are : (1) Organizational Issue, (2) Alternative Acceptors Issue, (3) Donor Physicians Issue, (4) Patients and Relatives Issue (5) Societal Issue, and (6) Country Issue. Each determinant issue has sub-issues called key attributes used for analyzing the advantages, benefits, constraints, and disadvantages which are the four major constructs of the framework. The factors affecting the various determinant issues of for task shifting for each key issues under four constructs are derived and 172 critical constituent elements (CCE) of these factors are listed under the ABCD constructs

Scholarly Publishing : Why Smart Researcher Hesitate to Publish in/with Top Ranking Journals/Publishers

Scholarly publishing is the subfield of publishing in which research work is published in the form of an academic journal article, edited book or thesis form. Due to the monopoly of top ranking publishers, the researchers are struggling to publish their research articles quickly and at low publication cost. In order to reach the research findings to the entire world, every author prefers to publish in open access journal but, so called top ranking journals are charging a huge fee as article processing charges which are in general between $1,000 to$3,000 and some journals charges even $5,000 apart from article submission fee. Since such journals are not paying any remuneration for peer review process, the review process and final publication take a long time, generally eight to ten months. This constraint of a long time and huge cost involved in scholarly publishing made the smart publishers find an alternative strategy for publishing their research. In this paper, we have discussed why smart publishers hesitate to publish in top ranking journals and their alternative strategy based on their objectives. We have also discussed the black ocean strategy formulated by such publishers as a counter strategy to face such move

Stable Atrial Sensing on Long-Term Follow Up of VDD Pacemakers

Background: The hemodynamic advantages of maintaining AV synchrony through AV synchronous pacing are widely known as compared to single chamber pacing. DDD pacemaker implantation entails higher cost and is technically more challenging than the VDD pacemaker. Methods: Seventy one patients underwent VDD lead (Biotronik GmbH, St. Jude Medical and Medtronic Inc.) implantation at KEM hospital, Mumbai during a period of 3 years through subclavian, axillary and cephalic routes for degenerative, post-surgical or congenital high grade atrioventricular or complete heart block. They were followed up regularly for ventricular threshold and P wave amplitude of the floating atrial dipole. Results: Follow up data of almost 95% of patients is available for a period of 15.8 ± 6.7 months. P wave amplitude at implant was 2.1 ± 0.7mV and at follow up 1.1 ± 0.6mV with mean ventricular threshold of <0.5V at implant and <1V at follow-up. Conclusion: Implantation of a single lead VDD pacemaker is possible in all patients with symptomatic AV block and intact sinus node function without any technical complications. P wave sensing is reliable and consistent with floating atrial lead at an average follow up of 15.8 months, providing an excellent alternative to DDD pacemaker implantation

Study of Optical Limiting and Optical Phase Conjugation in DASPB Dye-doped Polymer Films

Nonlinear optical properties, optical limitingand Optical phase conjugation through degenerate fourwavemixing is observed in 4-[4-(Dimethylamino)styryl]-1-docosyl pyridinium bromide (DASPB) dye-doped inPolymethyl methacrylate – metacrylic acid (PMMA-MA)polymer films under low-power, continuous-wave laserirradiation. A maximum phase conjugate efficiency of0.42% has been obtained for probe beam intensity at 2.5W/cm2. Phase conjugation is observed for both parallelandorthogonally-polarized probe and pump beams. Themaximum PC reflectivity is achieved when the anglebetween probe beam and forward pump beam is 8degrees. The effects of dye concentration, inter beamangle between probe and forward pump beam on phaseconjugation reflectivity are also studied. PC signalstrength first increases and then decreases with time. PCreflectivity is also increased by increasing the intensity ofthe backward and forward pump beam. The polarizationand intensity profile are verified to be preserved in theconjugate signal. The predominant phase conjugationsignal is attributed due to the saturable absorption andtwo photon induced florescence property of the dyemolecules