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Search Results: 1 - 10 of 12431 matches for " George Mathew "
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Pharmacognostical profiling of Geranium ocellatum leaves
International Journal of Medicinal and Aromatic Plants , 2011,
Abstract: Geranium ocellatum commonly known as black eyed Geranium. In the present study pharmacognostical characterization of Geranium ocellatum leaves were conducted. Leaf constants like stomatal number, stomatal index, palisade ratio, vein-islet number, veinlet termination number have been determined. Physico-chemical characteristic like moisture content, etc were determined. Ash values like total ash value, acid insoluble ash value, water soluble ash value found out. Experiments for determining extractive values like alcohol soluble extractive value and water soluble extractive value done.
Global burden of trauma: Need for effective fracture therapies
Mathew George,Hanson Beate
Indian Journal of Orthopaedics , 2009,
Abstract: Orthopedic trauma care and fracture management have advanced significantly over the last 50 years. New developments in the biology and biomechanics of the musculoskeletal system, fixation devices, and soft tissue management have greatly influenced our ability to care for musculoskeletal injuries. Many therapies and treatment modalities have the potential to transform future orthopedic treatment by decreasing invasive procedures and providing shorter healing times. Promising results in experimental models have led to an increase in clinical application of these therapies in human subjects. However, for many modalities, precise clinical indications, timing, dosage, and mode of action still need to be clearly defined. In order to further develop fracture management strategies, predict outcomes and improve clinical application of newer technologies, further research studies are needed. Together with evolving new therapies, the strategies to improve fracture care should focus on cost effectiveness. This is a great opportunity for the global orthopedic community, in association with other stakeholders, to address the many barriers to the delivery of safe, timely, and effective care for patients with musculoskeletal injuries in developing countries.
Reflective Classroom Practice for Effective Classroom Instruction
Nalliveettil George Mathew
International Education Studies , 2012, DOI: 10.5539/ies.v5n3p205
Abstract: Improving English language skills of learners is a strenuous task because of the variations in culture, background and learning styles. This strenuous task is further aggravated when English teachers realizes the proficiency level of students is far too low that his/her expectation. In most of the ESL and EFL context, English teachers rely on mid-term test to evaluate the proficiency level of the students. Blame game follows when there are too many failures in the classroom. Teachers blame the students for giving least importance to English language which resulted in low scores while the students blame the teacher for making the exam tough. The college/university management considers failure of students as a failure of the teachers in the classroom teaching. The information presented in this paper is an alarming wakeup call and a reminder for the teachers to be constant self-evaluators of their classroom teaching rather than waiting for the results of a test to understand the students’ progress in classroom. This paper gives insights to the struggling teachers to succeed through reflective teaching practices.
A Comparison of Pinch Force between Finger and Palm Grasp techniques in Laparoscopic Grasping  [PDF]
Susmitha Wils K, George Mathew, M. Manivannan, Suresh R Devasahayam
Engineering (ENG) , 2012, DOI: 10.4236/eng.2012.410B012

Laparoscopic surgery is a new abdominal surgical procedure which helps the patients in many ways like less hospital stay, faster recovery and reduced pain. The main disadvantage in this surgical procedure is the reduced haptic perception by the surgeons due to the usage of laparoscopic instrument to handle tissues which in turn cause damage of it as compared to an open surgery. The primary aim of this investigation was to compare the pinch force applied during two different methods of laparoscopic grasping: Finger and Palm grasp. A low cost force sensing resistor tailor made for the grasper tip was designed and fabricated for quantifying the grasper tip force in the study. The results indicate more pinch force was applied during palm grasp as compared to finger grasp so as to prevent the slippage of the tissues from the jaws of the laparoscopic graspers.

Primary non Hodgkin's lymphoma of the lacrimal sac
Ramachandran Venkitaraman, Mathew K George
World Journal of Surgical Oncology , 2007, DOI: 10.1186/1477-7819-5-127
Abstract: The clinical features of a 78 year old female who presented with epiphora and swelling of the left lacrimal sac are described.Computerised tomography showed a mass involving the left lacrimal sac. Histopathological examination revealed a diffuse large B cell NHL. Immunohistological examination demonstrated B cell origin. Chemotherapy could not be administered due to co morbid conditions. The patient was treated with radiotherapy to a dose of 45 Gy in 25 fractions. Patient is disease free and on follow up after 36 months.Primary radiotherapy is a treatment option with curative potential for localized NHL of the lacrimal sac and may be considered in patients who cannot tolerate appropriate chemotherapy.Tumors involving the nasolacrimal drainage system are rare and more than 90% of these tumours are of epithelial origin [1]. Majority of lymphomas involving the lacrimal sac are secondary to systemic lymphoreticular malignancy [1]. Primary non Hodgkin's lymphoma (NHL) of the lacrimal sac is a rare neoplasm [2-6]. Therefore, the clinicopathological features and optimal management of primary lacrimal sac NHL are not well characterized.In this report, we present the clinical features of a patient with primary NHL of the lacrimal sac treated successfully with radiotherapy.A 78 year old female patient presented with epiphora of the left eye of 6 months duration and a painless swelling of the left lacrimal sac area of 2 months duration. Physical examination showed a firm, non-tender mass measuring 3 × 4 cm in the right lacrimal fossa. Irrigation test revealed complete obstruction of the lacrimal drainage system. Rest of the eye and adnexae were normal. Computerised tomography (CT) scan of the orbit showed a heterogeneous soft tissue mass arising from the lacrimal sac, infiltrating and pushing the globe laterally and forward, causing exophthalmos with no bony erosion (figure 1). There was homogenous and intense enhancement with contrast.An incision biopsy was performed from the
Photo-Fries rearrangements of 1-naphthyl (R)-2-phenylpropanoate in poly(vinyl acetate) and ethyl acetate: influence of medium polarity and polymer relaxation on motions of singlet radical pairs
Xu, Jinqi;George, Mathew;Weiss, Richard G.;
Anais da Academia Brasileira de Ciências , 2006, DOI: 10.1590/S0001-37652006000100005
Abstract: both the regio- and stereo-chemistries of the photoreactions of 1-naphthyl (r)-2-phenylpropanoate have been investigated in poly(vinyl acetate) films in their glassy (at 5oc) and melted (at 50oc) states and in ethyl acetate. these results are compared with those from irradiations in polyethylene films and in n-hexane. the regioselectivity of the intermediate 1-naphthoxy/(r)-2-phenylpropanoyl radical pair combinations is much higher in both the melt and glassy states of poly(vinyl acetate) films than that in the melt state of completely amorphous polyethylene films, but the stereoselectivity of intermediate prochiral 1-naphthoxy/1-phenylethyl radical pair combinations is much lower in poly(vinyl acetate). the results emphasize the need to control the ratio between the rates of radical tumbling and translation, as well as the ratio between the rates of in-cage motions and cage-escape, if high stereo- and regio-selectivities of combination products are to be achieved. a mechanistic picture of how the radicals of the intermediate pairs are affected by and interact with the various media is advanced.
Steel Slag ingredient for concrete pavement
International Journal of Innovative Research in Science, Engineering and Technology , 2013,
Abstract: Steel slag is an industrial by-product of steel industry. It possesses the problem of disposal as waste and is of environmental concern [9]. The demand for aggregate in construction industry is increasing rapidly and so is the demand for concrete. Thus it is becoming more important to seek suitable alternatives for aggregates in the future. In this study, the natural coarse aggregates (NCA) were replaced with steel slag aggregate (SSA) at various proportions of 20%, 40%, 60%, 80% and 100%. Experiments were conducted to determine the compressive strength, flexural strength and split tensile strength of concrete with various percentages of steel slag aggregate. The results were compared with conventional concrete.
Insights into the mechanical properties of a silicone oil gel with a ‘latent’ gelator, 1-octadecylamine, and CO2 as an ‘activator’
Emiliano Carretti,Mathew George,Richard G. Weiss
Beilstein Journal of Organic Chemistry , 2010, DOI: 10.3762/bjoc.6.111
Abstract: A detailed study of the rheological properties of silicone oil gels, made from a low-molecular-mass organic gelator, a combination of 1-octadecylamine (a latent gelator) and carbon dioxide (an ‘activating’ molecule), is reported. Information gleaned from the mechanical measurements is used to characterize the gel networks and how they respond to temperature and strain. It is shown, for example, that very precise measurements of the gel-to-sol transitions can be obtained from plots of viscosity versus temperature.
C. K .Georgekutty,Dr .George Mathew
International Journal of Engineering Science and Technology , 2012,
Abstract: Construction Industry in Kerala has a physical environment which influence cost, time. This is a peculiar issue of a developing country, which leads to many setbacks in completion of projects. This approach has made many challenges in the growth of construction. Material management is an important aspect in project planning andcontrol. It contributes a major portion of expense in construction projects. Controlling procurement and carrying cost can reduce total project cost. To identify the reason for setbacks and suggest an appropriate workable solution under the special circumstances is the aim of this study. A questionnaire survey has been conducted among hundred selected ongoing housing projects in Kochi and nearby districts. Based on the study, only 15% of the projects are expected to complete in time. Though all materials are equally important in construction, some of the key materials specifically control the project cost. A dynamic control over the materials can control project cost. Continues process will optimize the total project cost.
Geospatial Modeling of Wine Grape Quality (Anthocyanin) for Optimum Sampling Strategy in Mechanized On-The-Go Differential Harvesting Programs
Balaji Sethuramasamyraja,Harvinder Singh,,George Mathew Mazhuvancheriparambath
International Journal of Engineering Science and Technology , 2010,
Abstract: Site-specific harvest of wine grapes based on quality and segregation before delivery to winery is a profitable cultural practice in vineyard management. Wine grape segregation based on quality parameters like anthocyanin to delineate quality zones in vineyards aids differential harvest. However, capturing vineyard variability with optimal sampling strategies is essential for economical feasibility of differential harvest. In this study, anthocyanin (mg/gfruit) data was collected on two production vineyards for geo-statistical analysis of spatial variability and determination of optimum samples/acre (SPA) for differential harvesting programs. Geo-referenced field samples of wine grapes were measured for anthocyanin using near-infrared sensors (NIR) in two vineyards of San Joaquin Valley California (Twin Creeks & Merjan). Two strategies of sampling, strategy I & II were utilized for 3, 5, 7 and 10 (reference) SPA. While strategy I selected 3, 5 or 7 random SPA in whole vineyard, strategy II did the same from every 1 acre block of the vineyard. Geo-spatial interpolations using ordinary kriging prediction of anthocyanin evaluated through cross validation parameters resulted in determining applicability of strategies in capturing vineyard field variability for differential harvesting. Strategy II outperformed strategy I in predictions with 5 and 7SPA predicting vineyard spatial variability.
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