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匹配条件: “Anshul Chawla” ,找到相关结果约399条。
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A SYSTEMIC REVIEW: MICROWAVE SYNTHESIS AS A PART OF GREEN CHEMISTRY FOR THE SYNTHESIS OF NOVEL 1, 2, 4- TRIAZOLE DERIVATIVES
Anshul Chawla,Prabhdeep Kaur
International Research Journal of Pharmacy , 2013,
Abstract: Microwave reactions are based on the basic principles of green chemistry, basically involve “Go Green” concept. Purpose of green synthesis is to proceed with all the synthetic procedures which are ecofriendly and economic. Great deal of better yield in lesser time than conventional methods are observed. In medicinal chemistry, 1,2,4- triazoles are the source for potent medicaments for different pharmacological activities. In connection with this, literature is being compiled up for the sake of synthesis of 1,2,4- triazoles derivatives by using microwave irradiations.
RECENT ADVANCES OF QUINAZOLINONE DERIVATIVES AS MARKER FOR VARIOUS BIOLOGICAL ACTIVITIES
Anshul Chawla,Chesta Batra
International Research Journal of Pharmacy , 2013, DOI: 10.7897/2230-8407.04309
Abstract: Heterocyclic chemistry comprises at least half of all organic chemistry research worldwide. Quinazolinone and its derivatives constitute an important class of heterocyclic compounds. The chemistry of quinazoline compounds has more than centuries old history; however the intense search for biologically active substances in this series began only in the last few decades. In this present communication an attempt is made to cover the medicinally active compounds, along with the recent discoveries, which were reported to posses various biological activities.
Ficus carica Linn.: A Review on its Pharmacognostic, Phytochemical and Pharmacological Aspects
Anshul Chawla,Ramandeep Kaur,Anil Kumar Sharma
International Journal of Pharmaceutical and Phytopharmacological Research , 2012,
Abstract: Ficus carica Linn. (Moraceae) is commonly known as Angir is a middle sized laticiferous deciduous tree, widely distributed in all tropical and sub-tropical countries. In addition to umbelliferone, scopoletin, the phytoconstituents like psoralens, bergapten, xanthotoxin, xanthotoxol, marmesin have been isolated from leaves and peptides from latex. The fruit extracts possessed activity in anaemia, latex as anthelmintic (due to ficin) and anticarcinogenic. Traditionally, the plant is being used as purgative, aphrodisiac, anti-inflammatory, expectorant, diuretic, anti- anxiety (mild sedative). The present review is therefore, an effort to give a detailed survey of the literature on its pharmacognosy, phytochemistry, and pharmacological properties.
Green Chemistry as a Versatile Technique for the Synthesis of Benzimidazole Derivatives: Review
Anshul Chawla,Gurpreet Kaur,Anil Kumar Sharma
International Journal of Pharmaceutical and Phytopharmacological Research , 2013,
Abstract: “Green chemistry” is the newand rapid emerging field of chemistry. It involves the utilization of a set of principles that reducesor eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products.Microwave induced organic reaction enhancement (MORE) is a simple, clean, fast, efficientandeconomical method for thesynthesis of organic molecules and has emerged as a tool towards green chemistry. This technique canreduce the time ofchemical reaction from hours to minutes. Conventional methods of synthetic reactions need longer heating time, elaborate andtedious apparatus set up which result in higher cost and environmental pollution. The reaction rateof microwave induced organicreaction increases ten to thousand times andthe yield of the product increases by 10-30 % compared to that by the conventionalmethods. As we know benzimidazole derivatives have been reported to have a wide range of pharmacological and biochemicalactivities; viz antifungal, antibacterial, antiviralanthelmintic, analgesic, anti-inflammatory, anti-neoplastic, depressive, hypnotic,anti-pyretic and anti-spasmolytic.Thus, we became interested in the study of synthesis of substituted benzimidazoles by greensynthesis techniques and furthermore to studytheir biological activities.
CHALCONE AS A VERSATILE MOIETY FOR DIVERSE PHARMACOLOGICAL ACTIVITIES
Hatish Prashar*, Anshul Chawla, Anil Kumar Sharma and Rajeev Kharb
International Journal of Pharmaceutical Sciences and Research , 2012,
Abstract: Chalcones are 1, 3-diphenyl-2-propene-1-one, consist of two aromatic rings linked by a three carbon α, β-unsaturated carbonyl system. The chemistry of chalcones has generated intensive scientific studies throughout the world. Especially interest has been focused on the synthesis and biodynamic activities of chalcones. These are considered to be precursors of flavonoids and isoflavonoids. The aim of this review is to summarize chalcones and their diverse pharmacological activities like anticancer, antimicrobial, analgesic and antiviral activities etc.
USE OF OPEN SOURCE TECHNOLOGIES FOR ENTERPRISE SERVER MONITORING USING SNMP
ANSHUL KAUSHIK
International Journal on Computer Science and Engineering , 2010,
Abstract: This paper focuses on the evolving trend of Data Center Monitoring inenterprise using SNMP protocol & open source platforms for proactive server monitoring and data center management. It also focuses on the need of data center monitoring and escalations for pro active approach.
A Novel MINLP Reformulation for Nonlinear Generalized Disjunctive Programming (GDP) Problems
Anshul Agarwal
Mathematics , 2015,
Abstract: In optimization problems, often equations and inequalities are represented using if-else (implication) construct which is known to be equivalent to a disjunction. Such statements are modeled and incorporated in an optimization problem using Generalized Disjunctive Programming (GDP). GDP provides a systematic methodology to model optimization problems involving logic disjunctions, logic propositions, and algebraic equations. In order to take advantage of the existing MINLP solvers, GDP problems can be reformulated as the standard MINLP problems. In this work we propose a novel reformulation methodology for general GDP problems with nonlinear equality and inequality constraints. The proposed methodology provides an exact reformulation, maintains feasibility and convexity of the constraints, and, most importantly, does not require choosing a tolerance level and a Big-M parameter. We also demonstrate how the new reformulation approach can be used to convert the logic proposition represented using if-else (implication) construct into equations in the standard MINLP format. The conversion methodology is extended for variations of implication constructs that include implicit else blocks, sequential implication logic, multiple testing conditions, and nested implication blocks. The proposed approach is utilized to model physical and mechanical properties in a mathematical optimization tool that solves an MINLP problem to design commercial products.
Mechanical Properties of Epoxy Resin – Fly Ash Composite  [PDF]
Manoj Singla, Vikas Chawla
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2010, DOI: 10.4236/jmmce.2010.93017
Abstract: There has been significant increase in use of glass fibre reinforced composites as structural materials in naval mine countermeasure surface ships. Sea mines when detonated emit underwater shock waves, which could impart severe loading to naval ship structure; there are attempts to model the response of a ship structure to this loading. For the model to be accurate & useful material property data determined experimentally by taking different weight percentage of glass fibers (E-300, mat form) with epoxy resin & comparison with fly ash reinforced composite. Specimens in the form of cube of size 10X10X10 (mm’s) are used & results are presented. Fracture behaviour of composite can also be studied using SEM. SEM analysis is done to observe distribution of fly ash particles in matrix, resin fly ash interface, glass fibre matrix interface, glass fibre distribution etc,.
Impact of Nutritional Counselling on Nutritional Status of Postmenopausal Women  [PDF]
Gurpreet Kaur, Paramjit Chawla
Food and Nutrition Sciences (FNS) , 2015, DOI: 10.4236/fns.2015.64044
Abstract: The aim of the study was to assess the impact of nutrition counselling on food intake and anthropometric measurements in postmenopausal women. Sixty postmenopausal women were selected from two villages of Sangrur district and were divided into two groups—Group I (Control) and Group II (Experimental) containing 30 subjects each. Subjects of Group II were imparted nutrition counselling (NC) regarding benefits of Aloe vera and its use in diet in individual and group contacts once in a week, for a period of three months. Aloe vera plants were also distributed to be used in their diets. Dietary intake of subjects for 3 consecutive days by 24 hr recall method was recorded before and after nutrition counselling. The average daily nutrient intake of diets was calculated by using Diet Cal. Anthropometric parameters were calculated before and after counselling. Dietary survey revealed that intake of cereals, fats/oil and sugar/jaggery decreased significantly (p ≤ 0.05) whereas intake of green leafy vegetable, other vegetables and fruits increase significantly (p ≤ 0.01) after counselling. A significant decrease in energy, carbohydrate, fat and significant increase intake in iron, calcium, potassium, Vitamin C and β-carotene content was observed. A significant reduction was observed for weight, body mass index (BMI), mid upper arm circumference (MUAC), triceps skinfold thickness (TSFT) and waist hip ratio (WHR) by 4.9%, 3.98%, 2.9% and 2.17% respectively, while random blood sugar (RBS), systolic blood pressure (SBP) and diastolic blood pressure (DBP) decreased by 25.21%, 13.74% and 8.03% after counselling. After nutrition counselling subjects adopted good nutritional practices and use of Aloe vera leaves in diets which improved their health status of postmenopausal women.
Holistic Psychopharmacology of Fumaria indica (Fumitory)  [PDF]
Anshul Shakya, Shyam Sunder Chatterjee, Vikas Kumar
Chinese Medicine (CM) , 2012, DOI: 10.4236/cm.2012.34028
Abstract:

Fumaria indica is a medicinal plant of the fumitory family wildly growing throughout India. Classical texts of Ayurveda, i.e. the oldest traditionally known health care and medical system originating in Indian subcontinent, mentions diverse medicinal uses of the plant. During more recent decades broad spectrums of therapeutically interesting pharmacological properties of its extracts and secondary metabolites have also been reported. Recent observations made during efforts to define its pharmacological activity profile according to the Ayurvedic concepts of mind body medicine have revealed exceptionally broad spectrums of psychopharmacological activity profiles of diverse types of hydro alcoholic extracts of the plant. These effects of the extracts become apparent after their repeated daily doses only. Taken together with prior preclinical knowledge on the plant, these observations strongly suggest that Fumaria indica could be an easily available source for discovering and developing phyto-pharmaceuticals or drugs potentially useful for treatments of mental health problems commonly associated with numerous physical disorders and chronic diseases. Since several psychoactive and other phytochemical of Fumaria indica are also encountered in other plants commonly used in Chinese and other traditionally known medical systems, observations made and the holistic strategy used for defining its psychopharmacological activity profile could be of interest of others involved in efforts necessary for proper understanding of therapeutic

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