સૌરાષ્ટ્ર વિસ્તારની વિદ્યાર્થીઓનીઓને શારીરિક ક્ષમતાના વિકાસ માટે આપેલી તાલીમ દ્વારા હીમોગ્લોબીન, કોલેસ્ટેરોલ તથા અન્ય શરીર શાસ્ત્રીય પાસાઓના પરિણામોનાં થતા ફેરફારોનો અભ્યાસ

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જૂનાગઢ જિલ્લાની જિલ્લા પંચાયત સંચાલિત અને ખાનગી ટ્રસ્ટ સંચાલિત પ્રાથમિક શાળાઓના સંસ્થાકીય વાતાવરણનો તુલનાત્મક અભ્યાસ

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A New Model Averaging Approach in Predicting Credit Risk Default

none2siThe paper introduces a novel approach to ensemble modeling as a weighted model average technique. The proposed idea is prudent, simple to understand, and easy to implement compared to the Bayesian and frequentist approach. The paper provides both theoretical and empirical contributions for assessing credit risk (probability of default) effectively in a new way by creating an ensemble model as a weighted linear combination of machine learning models. The idea can be generalized to any classification problems in other domains where ensemble-type modeling is a subject of interest and is not limited to an unbalanced dataset or credit risk assessment. The results suggest a better forecasting performance compared to the single best well-known machine learning of parametric, non-parametric, and other ensemble models. The scope of our approach can be extended to any further improvement in estimating weights differently that may be beneficial to enhance the performance of the model average as a future research direction.openParitosh Navinchandra Jha; Cucculelli MarcoJha, Paritosh Navinchandra; Cucculelli, Marc

Studies in the physical state of dyestuffs

The first part of this thesis deals with a statistical survey of the colour Index data or fastness properties of dyes and its relation to their molecular constitution. Both washfastness and resistance to migration of a groan of acid dyes on wool rise directly with the molecular weight of the dye. Chrome mordant dyes, which may be regarded as forming 1,1 - or 2,1 - dye met complex on the wool fibre, also display a similar tread. This may be attributed either to an increase in moleoular weight by the formation of the dye-metal complex, or to the formation of firmer dye-fibre bonds through chelation with chromium. Various attempts were made to correlate light-fastness with washfastness of acid dyes on wool and of direct dyes on cotton, but the results were not significant. There is, however, a relation between lightfastness and anionic weight for a group of acid dyes. There is an inverse relation between molecular axial ratio and lightfastress of arthraquinone vat dyes or cotton; lightfastness decreases with increase in the ratio of molecular length to width. The molecular geometry o acid and direct dyes does not vary enough for significant trends trends to be revealed. There is, however, a significant correlation between molecular axial ratio aid the proportion of fading caused by the visible spectral region (McLaren's data). Both these results are attributed to the formation of more stable aggregates with decrease in molecular axial ratio, though the result may be influenced chemical factors. The second part of the thesis deals with studies in the association of dyes at inorganic surfaces. Theories of solution adsorption have been applied to interpret the adsorption results. The concept of 'coverage factor' has been fully developed and a direct relation between (log10) coverage and (log10) ionic weight of fully conjugated dyes has been found. This relation may be used to find the suitability of a dye for specific surface area measurement. Unconjugated or imperfectly conjugated dyes do not appear to obey the relation. r empirical approach has, however, been sought to fit them to the relation and it has been how, that the size of the micelles may be governed by the average size of the individual conjugated systems in a dye molecule. These experiments have revealed that "coated" titania. (i.e. titania treated in manufacture with silica and (v) and alumina) appears to lose its surface area and its hydrogen bonding capacity for some dyes, or ageing at room temperature. Uncoated titania does rot do so. Furthermore the ageing effect on coated titania appears to be partly reversible and a port of the lost surface area can be recovered or heath r the sample. Basic triphenylmethane dyes display an endothermic adsorption effect on alumina. This anomalous effect has been explained on the basis of the theory of resonance. The amount of a dye adsorbed at room temperature is governed by its ionic weight, but at higher temperature it may be governed by the Lumber of resonating forms by which it car be represented. The aggregates of dye molecules formed on the substrate surface at a higher temperature are supposed to he of different structure from those formed at room temperature. It is attested that at higher temperatures the reaggregation of dye molecules or the substrate surface occurs so as to reduce the free energy to a minimum. This favours the building up of larger and more stable aggregates

Sediment transport in Money Creek

Reprinted from Journal of the Hydraulics Division. Proceedings of the American Society of Civil Engineers, Paper 1531, February, 1958.Bibliography: p. 26-27

Retrospective analysis of intrauterine granulocyte colony-stimulating factor in controlled ovarian stimulation with intrauterine insemination cycle

Background: Persistent thin endometrium affects <1% of patients. Various treatments have been proposed with no satisfactory results. GCSF is one such treatment modality which improves endometrial thickness and implantation. Aim of this study was to analyse the effects of dose and the site of instilling intrauterine G-CSF in COS IUI cycles in patients with unexplained infertility and to note the pregnancy rates among them.Methods: It is a 3-year retrospective study done in obstetrics and gynecology department of AJ Institute of Medical Sciences and Research Centre, that included all unexplained infertility cycles with controlled ovulation stimulation-IUI protocols where for a thin endometrium GCSF was used. The method of ovarian stimulation, the drug and dose used, the trigger for ovulation and the ovarian and endometrial response was noted. The day of the intrauterine GCSF and the dose and the site of instillation was noted. The endometrial response to GCSF the outcome for pregnancy was noted. All the data was analyzed statistically.Results: Significant endometrial response was seen with a dose of 100 mg,150 mg and 300 mg. Pregnancy outcome was better when GCSF was instilled just above the level of the os. GCSF instilled at the level of the fundus increases the possibility of ectopic pregnancy.Conclusions: Instillation of GCSF of 100 mg dosage just above the os; is a safe and effective method for improving the endometrial thickness and increasing pregnancy rate

Cardioprotective effect of rutin considering cardiac enzyme level in induced myocardial infarction

The present study was designed to investigate effects of rutin on isoproterenol induced myocardial infarction (MI) by considering enzyme level in rats. Rats were treated with rutin contineously for 10 days (10 mg/kg/day, i.p.,); MI were induced by treating rats with isoproterenol for last 2 consecutive days (5.25 and 8 mg/kg, i.p). Protein kinase C (PKC), malonylaldehyde (MAL), Glutathione (GSH), superoxide dismutase (SOD) and survival rate were evaluated. Rutin enhanced survival rate evaluated at the end of experiment. Result shows significant decrease in level of PKC (P < 0.001) and MAL enzyme (P < 0.01) while elevation of GSH (P < 0.001) and SOD (P < 0.001) level in pretreated rutin + isoproterenol group and pretreated rutin group as compared to isoproterenol treated group indicates cardioprotective effect of rutin. The results indicate that Rutin significantly reduces myocardial infarction and emphasize the beneficial action in prevention of MI.Colegio de Farmacéuticos de la Provincia de Buenos Aire

Does Imaging Modality Used for Percutaneous Renal Access Make a Difference? A Matched Case Analysis

Objective: To assess perioperative outcomes of percutaneous nephrolithotomy (PCNL) using ultrasound or fluoroscopic guidance for percutaneous access. Methods: A prospectively collected international Clinical Research Office of the Endourological Society (CROES) database containing 5806 patients treated with PCNL was used for the study. Patients were divided into two groups based on the methods of percutaneous access: ultrasound versus fluoroscopy. Patient characteristics, operative data, and postoperative outcomes were compared. Results: Percutaneous access was obtained using ultrasound guidance only in 453 patients (13.7%) and fluoroscopic guidance only in 2853 patients (86.3%). Comparisons were performed on a matched sample with 453 patients in each group. Frequency and pattern of Clavien complications did not differ between groups (p = 0.333). However, postoperative hemorrhage and transfusions were significantly higher in the fluoroscopy group: 6.0 v 13.1% (p = 0.001) and 3.8 v 11.1% (p = 0.001), respectively. The mean access sheath size was significantly greater in the fluoroscopy group (22.6 v 29.5F; p = 27F) and multiple punctures. Prospective randomized trials are needed to clarify this issue

Reactive Distillation for Esterification of Bio-based Organic Acids

The following is the final report of the three year research program to convert organic acids to their ethyl esters using reactive distillation. This report details the complete technical activities of research completed at Michigan State University for the period of October 1, 2003 to September 30, 2006, covering both reactive distillation research and development and the underlying thermodynamic and kinetic data required for successful and rigorous design of reactive distillation esterification processes. Specifically, this project has led to the development of economical, technically viable processes for ethyl lactate, triethyl citrate and diethyl succinate production, and on a larger scale has added to the overall body of knowledge on applying fermentation based organic acids as platform chemicals in the emerging biorefinery. Organic acid esters constitute an attractive class of biorenewable chemicals that are made from corn or other renewable biomass carbohydrate feedstocks and replace analogous petroleum-based compounds, thus lessening U.S. dependence on foreign petroleum and enhancing overall biorefinery viability through production of value-added chemicals in parallel with biofuels production. Further, many of these ester products are candidates for fuel (particularly biodiesel) components, and thus will serve dual roles as both industrial chemicals and fuel enhancers in the emerging bioeconomy. The technical report from MSU is organized around the ethyl esters of four important biorenewables-based acids: lactic acid, citric acid, succinic acid, and propionic acid. Literature background on esterification and reactive distillation has been provided in Section One. Work on lactic acid is covered in Sections Two through Five, citric acid esterification in Sections Six and Seven, succinic acid in Section Eight, and propionic acid in Section Nine. Section Ten covers modeling of ester and organic acid vapor pressure properties using the SPEAD (Step Potential Equilibrium and Dynamics) method