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Search Results: 1 - 10 of 382488 matches for " C. L. Arora "
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Comparison of balance assessment modalities in emergency department elders: a pilot cross-sectional observational study
Jeffrey M Caterino, Rowan Karaman, Vinay Arora, Jacqueline L Martin, Brian C Hiestand
BMC Emergency Medicine , 2009, DOI: 10.1186/1471-227x-9-19
Abstract: We conducted a cross-sectional observational study of patients ≥ 60 years old being discharged from the ED. Patient history of falls in the past week, month, 6 months, and year was obtained. Balance plate center of pressure excursion (COP) measurements and TUG testing times were recorded. COP was recorded under four conditions: normal stability eyes open (NSEO) and closed (NSEC), and perturbed stability eyes open and closed. Correlation between TUG and COP scores was measured. Univariate logistic regression was used to identify the relationship between patient-provided falls history and the two testing modalities. Proportions, likelihood ratios, and receiver-operating-characteristic (ROC) curves for prediction of previous falls were reported.Fifty-three subjects were enrolled, 11% had fallen in the previous week and 42% in the previous year. There was no correlation between TUG and any balance plate measurements. In logistic regression, neither testing modality was associated with prior history of falls (p > 0.05 for all time periods). Balance plate NSEO and NSEC testing cutoffs could be identified which were 83% sensitive and had a negative likelihood ratio (LR-) of 0.3 for falls in the past week. TUG testing was not useful for falls in the past week, but performed best for more distant falls in the past month, 6 months, or year. TUG cutoffs with sensitivity over 80% and LR(-) of 0.17-0.32 could be identified for these time periods.Over 40% of community-dwelling elder ED patients report a fall within the past year. Balance plate and TUG testing were feasibly conducted in an ED setting. There is no relationship between scores on balance plate and TUG testing in these patients. In regression analysis, neither modality was significantly associated with patient provided history of falls. These modalities should not be adopted for screening purposes in elders in the ED setting without validation in future studies or as part of multi-factorial risk assessment.More than o
S.L.Sinha, R.C.Arora and S.Roy
International Journal of Research and Reviews in Applied Sciences , 2010,
Deformation potential dominated phonons in ZnS quantum dots
S. Dhara,A. K. Arora,Jay Ghatak,K. H. Chen,C. P. Liu,L. C. Chen,Y. Tzeng,Baldev Raj
Physics , 2007,
Abstract: Strong deformation potential (DP) dominated Raman spectra are reported for quantum confined cubic ZnS nanoclusters under off-resonance conditions allowed only in quantum dots. A flurry of zone boundary phonons is demonstrated in the scattering process. Transverse optic (TO) mode in the multi-phonon process shows only even order overtones suggesting the dominance of a two-phonon process (having large DP value in ZnS) and its integral multiples. Two-phonon TO modes corresponding to A1 and B2 symmetries are also demonstrated under off-resonance conditions which are allowed only in quantum dots.
Utilizing Healthcare Developments, Demographic Data with Statistical Techniques to Estimate the Diarrhoea Prevalence in India  [PDF]
Shweta Srivastava, Vatsalya Vatsalya, Ashoo Arora, Kashmiri L. Arora, Robert Karch
Advances in Infectious Diseases (AID) , 2012, DOI: 10.4236/aid.2012.21001
Abstract: Diarrhoea is one of the leading causes of morbidity and mortality in developing countries in Africa and South Asia such as India. Prevalence of diarrheal diseases in those countries is higher than developed western world and largely has been associated with socio-economic and sanitary conditions. However, present available data has not been sufficiently evaluated to study the role of other factors like healthcare development, population density, sex and regional influence on diarrheal prevalence pattern. Study was performed to understand the relationship of diarrheal prevalence with specific measures namely; healthcare services development, demographics, population density, socio-economic conditions, sex, and regional prevalence patterns in India. Data from Annual national health reports and other epidemiological studies were included and statistically analyzed. Our results demonstrate significant correlation of the disease prevalence pattern with certain measures like healthcare centers, population growth rate, sex and region-specific morbidity. Available information on sanitation like water supply and toilet availability and socioeconomic conditions like poverty and literacy measures could only be associated as trends of significance. This study can be valuable for improvisation of appropriate strategies focused on important measures like healthcare resources, population growth and regional significances to evaluate prevalence patterns and management of the diarrhoea locally and globally.
Inhibition of nitrification in soil by metal diethyldithiocarbamates
AArora,Bijay Singh,Dhiraj Sud,TSrivastava,CLArora,
A. Aror
,Bijay Singh,Dhiraj Su,T.Srivastav,C. L. Arora

环境科学学报(英文版) , 2003,
Abstract: Nitrification acts as a key process in determining fertilizer use efficiency by crops as well as nitrogen losses from soils. Metal dithiocarbamates in addition to their pesticidal properties can also inhibit biological oxidation of ammonium(nitrification) in soil. Metal M = V(III), Cr(III), Mn(II), Fe(III), Ni(II), Cu(II), Zn(II) and Co(II)] diethyldithiocarbamates (DEDTC) were synthesized by the reaction of sodium diethyldithiocarbamate with metal chloride in dichloromethane/water mixture. These metal diethyldithiocarbamates were screened for their ability to inhibit nitrification at different concentrations( 10 microg/g soil, 50 microg/g soil and 100 microg/g soil). With increasing concentration of the complex, capacity to retard nitrification increased but the extent of increase varied for different metals. At 100 microg/g soil, different complexes showed nitrification inhibition from 22.36% to 46.45% . Among the diethyldithiocarbamates tested, Zn(DEDTC)2 proved to be the most effective nitrification inhibitor at 100 microg/g soil. Manganese, iron and chromium diethyldithiocarbamates also proved to be effective nitrification inhibitors than the others at 100 microg/g soil. The order of percent nitrification inhibition in soil by metal diethyldithiocarbamates was: Zn(II) > Mn(II) > Fe(III) > Cr(III) > V(III) > Co(II) > Ni(II) > Cu(II).
Pityriasis rosea and VDRL test
Mohan L,Arora S
Indian Journal of Dermatology, Venereology and Leprology , 1990,
Abstract: Blood VDRL test performed at the initial visit, and also two weeks later, in 26 patients clinically diagnosed to be having pityriasis rosea, was negative in all.
Clinico-pathologic correlates in Fuch′s heterochromic iridiocyclitis-An iris angiographic study
Verma L,Arora R
Indian Journal of Ophthalmology , 1990,
Abstract: Iris Angiography in a case of Fuchs′ heterochromic iridocyclitis (FHI) is described. The finding of iris angiography and hylainzed iris vessels on histopathology suggested ischemic etiology of FHI. This is the first report on Iris Angiography in a pigmented eye with Fuchs′ heterochromic iridocyclitis.
Absence of musculocutaneous nerve and accessory head of biceps brachii: a case report
Arora L,Dhingra R
Indian Journal of Plastic Surgery , 2005,
Abstract: During dissection of a 55-year-old female cadaver, we observed that three nerve roots contributed to the formation of Median nerve in her right upper limb. Along with this variation, absence of Musculocutaneous nerve was noticed. The muscles of front of arm i.e. Biceps Brachii, Brachialis and Coracobrachialis received their nerve supply from Median nerve. The Lateral cutaneous nerve of forearm was derived from Median nerve. Also an accessory head of Biceps Brachii muscle was present in the right arm of the same cadaver. It is extremely important to be aware of these variations while planning a surgery in the region of axilla or arm as these nerves are more liable to be injured during operations.
Unusual nerve supply of biceps from ulnar nerve and median nerve and a third head of biceps
Arora L,Dhingra R
Indian Journal of Plastic Surgery , 2006,
Abstract: Variations in branching pattern of the brachial plexus are common and have been reported by several investigators. Of the four main nerves traversing the arm, namely median, ulnar, radial and musculocutaneous, the ulnar and median nerve do not give any branches to muscles of the arm. Ulnar nerve after taking origin from medial cord of brachial plexus runs distally through axilla on medial side of axillary artery till middle of arm, where it pierces the medial intermuscular septum and enters the posterior compartment of arm. Ulnar nerve enters forearm between two heads of flexor carpi ulnaris from where it continues further. It supplies flexor carpi ulnaris , flexor digitorum profundus and several intrinsic muscles of hand . We recently observed dual supply of biceps muscle from ulnar and median nerves in arm. Musculocutaneous nerve was absent. Although communications between nerves in arm is rare, the communication between median nerve and musculocutaneous nerve were described from the 19th century which could explain innervation of biceps from median nerve. But no accurate description of ulnar nerve supplying biceps could be found in literature. Knowledge of anatomical variation of these nerves at level of upper arm is essential in light of the frequency with which surgery is performed to transfer nerve fascicles from ulnar nerve to biceps in case of brachial plexus injuries. We also observed third head of biceps, our aim is to describe the exact topography of this variation and to discuss its morphological.
Differences in Hemoglobin and Packed Cell Volume in Blood Collected from Different Sites in Japanese Quail (Coturnix japonica)
Kashmiri L. Arora
International Journal of Poultry Science , 2010,
Abstract: Hemoglobin (Hb) and Packed Cell Volume (PCV) values were compared in blood collected from the following four sites of the Japanese quail: jugular, brachial, medial metatarsal veins and the heart. Ten 25-week-old hatch-mate layers of similar body weight having a hard shelled egg in the uterus were used in this study. Hb and PCV values were found to be the highest in the medial metatarsal vein followed by, in descending order, the brachial vein, the jugular vein and the heart. The heart had significantly lower values (p<0.05) compared with the jugular, brachial and medial metatarsal veins with the latter two having almost similar values. Blood samples from the jugular vein exhibited the least variability compared to other sites. The brachial vein followed by the jugular vein, were found to be suitable sites for blood sampling as well as for making injections without any significant complication. The heart puncture technique was very risky, traumatic and resulted in many side effects and should not be used, particularly in on-going experiments. Scientists should be aware of possible differences in blood constituents as a result of sampling sites. For obtaining accurate and reliable results, these points should be taken into consideration while designing an experiment or assessing comparative hematological data collected using different collection techniques.
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