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Search Results: 1 - 10 of 541175 matches for " M. L. Mittal "
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Follicular Fluid Cortisol Releasing Hormone (CRH) Levels and Assisted Reproductive Treatment (ART) Outcomes  [PDF]
L. N. Lim, P. R. Supramaniam, M. Mittal, E. A. Linton, E. McVeigh
Open Journal of Obstetrics and Gynecology (OJOG) , 2017, DOI: 10.4236/ojog.2017.713130
Abstract: Purpose: Can Cortisol Releasing Hormone (CRH) levels in follicular fluid predict outcomes following assisted reproductive treatment (ART) cycles? Methods: Prospective cohort study of 50 women undergoing in vitro fertilisation (IVF)/intra-cytoplasmic sperm injection (ICSI) cycles over a two month study period. All patients were treated on the long stimulation protocol; follicular fluid was aspirated and pooled for each patient. The samples were processed appropriately and assayed using CRH radioimmunoassay (RIA). Results: This study confirmed that CRH was present in follicular fluid. The average level detected was 173 ± 9 pg/mL (mean ± standard error of mean [SEM]). The data suggests a positive correlation of CRH follicular fluid levels greater than 145 pg/mL with successful ART outcomes. Conclusion: The data indicates a positive correlation between ART outcomes and the presence of follicular fluid CRH levels greater than 145 pg/mL. The results should be interpreted with caution due to the small sample size and pooling of follicular fluid per patient. Furthermore, the pooling of follicular fluid is not representative of CRH levels in an individual follicle, and thus, mature oocyte. This study serves as a reminder to what has previously been hypothesised.
Trigonometric Approximation of Signals (Functions) Belonging to Class by Matrix Operator
Uaday Singh,M. L. Mittal,Smita Sonker
International Journal of Mathematics and Mathematical Sciences , 2012, DOI: 10.1155/2012/964101
Abstract: Various investigators such as Khan (1974), Chandra (2002), and Liendler (2005) have determined the degree of approximation of 2π-periodic signals (functions) belonging to Lip(,) class of functions through trigonometric Fourier approximation using different summability matrices with monotone rows. Recently, Mittal et al. (2007 and 2011) have obtained the degree of approximation of signals belonging to Lip(,)- class by general summability matrix, which generalize some of the results of Chandra (2002) and results of Leindler (2005), respectively. In this paper, we determine the degree of approximation of functions belonging to Lip α and (, ()) classes by using Cesáro-Nörlund (1?) summability without monotonicity condition on {}, which in turn generalizes the results of Lal (2009). We also note some errors appearing in the paper of Lal (2009) and rectify them in the light of observations of Rhoades et al. (2011).
Comparison of Various PSO Variants with Different Mathematical Functions
Lokesh Kumar Saharan,M. L. Mittal
International Journal on Theoretical and Applied Research in Mechanical Engineering , 2013,
Abstract: The optimality of solutions is based on one or several criteria that are usually problem and user dependent. User or problem may pose some constraints on it. So, we have to find the optimal solution of constrained, complex and unpredictable problems. Various Metaheuristics can be used to solve these kinds of problems with more or less certainty. But reproducibility (or refinement) of result can be assured by quality and problem specific algorithm and efficient programming. We have tried to compare results of two variants of PSO (Neighbourhood varying inertia weight (nVIW) and Neighbourhood varying inertia weight with constriction factor (CnVIW)) on two mathematical functions (Goldstein Price function and Rosenbrock Function). These functions have shown some interesting behaviours and convergence pattern by varying different parameters. Constriction factor has proved efficacious in some cases as swarm approaches towards gbest but it was not as significant as inertia factor was in case of standard PSO. We have used Java for programming purpose which proved to be a very strong tool in dealing with complex calculations.
Approximation of Signals (Functions) by Trigonometric Polynomials in -Norm
M. L. Mittal,Mradul Veer Singh
International Journal of Mathematics and Mathematical Sciences , 2014, DOI: 10.1155/2014/267383
Abstract: Mittal and Rhoades (1999, 2000) and Mittal et al. (2011) have initiated a study of error estimates through trigonometric-Fourier approximation (tfa) for the situations in which the summability matrix does not have monotone rows. In this paper, the first author continues the work in the direction for to be a -matrix. We extend two theorems on summability matrix of Deger et al. (2012) where they have extended two theorems of Chandra (2002) using -method obtained by deleting a set of rows from Cesàro matrix . Our theorems also generalize two theorems of Leindler (2005) to -matrix which in turn generalize the result of Chandra (2002) and Quade (1937). “In memory of Professor K. V. Mital, 1918 - 2010.” 1. Introduction Let be a periodic signal (function) and let . Let denote the partial sums, called trigonometric polynomials of degree (or order) , of the first terms of the Fourier series of at a point . The integral modulus of continuity of is defined by If, for , then . Throughout will denote the -norm, defined by A positive sequence is called almost monotone decreasing (increasing) if there exists a constant , depending on the sequence only, such that, for all , Such sequences will be denoted by and , respectively. A sequence which is either or is called almost monotone sequence and will be denoted by . Let be an infinite subset of and as the range of strictly increasing sequence of positive integers; say . The Cesàro submethod is defined as where is a sequence of real or complex numbers. Therefore, the -method yields a subsequence of the Cesàro method , and hence it is regular for any . is obtained by deleting a set of rows from Cesàro matrix. The basic properties of -method can be found in [1, 2]. In the present paper, we will consider approximation of by trigonometric polynomials and of degree (or order) , where and by convention . The case for all of either or yields We also use Mittal and Rhoades [3, 4] have initiated the study of error estimates through trigonometric-Fourier approximation (tfa) for the situations in which the summability matrix does not have monotone rows. In this paper, the first author continues the work in the direction for to be a -matrix. Recently, Chandra [5] has proved three theorems on the trigonometric approximation using -matrix. Some of them give sharper estimates than the results proved by Quade [6], Mohapatra and Russell [7], and himself earlier [8]. These results of Chandra [5] are improved in different directions by different investigators such as Leindler [9] who dropped the monotonicity on generating sequence and
Approximation of signals (functions) belonging to the weighted -class by linear operators
M. L. Mittal,B. E. Rhoades,Vishnu Narayan Mishra
International Journal of Mathematics and Mathematical Sciences , 2006, DOI: 10.1155/ijmms/2006/53538
Abstract: Mittal and Rhoades (1999–2001) and Mittal et al. (2006) have initiated the studies of error estimates En(f) through trigonometric Fourier approximations (TFA) for the situations in which the summability matrix T does not have monotone rows. In this paper, we determine the degree of approximation of a function f˜, conjugate to a periodic function f belonging to the weighted W(Lp,ξ(t))-class (p≥1), where ξ(t) is nonnegative and increasing function of t by matrix operators T (without monotone rows) on a conjugate series of Fourier series associated with f. Our theorem extends a recent result of Mittal et al. (2005) and a theorem of Lal and Nigam (2001) on general matrix summability. Our theorem also generalizes the results of Mittal, Singh, and Mishra (2005) and Qureshi (1981-1982) for Nörlund (Np)-matrices.
Methotrexate : Side effects and the role of folic acid supplementation in psoriasis - A study
Masuria B,Mittal A,Gupta L,Sharma M
Indian Journal of Dermatology, Venereology and Leprology , 1997,
Abstract: In 50 patients of psoriasis, side effects observed with methotrexate pulse were studied. Folic acid ameliorated majority of the side effects without compromising with the therapeutic efficacy of methotrexate.
Thickening of peripheral nerves in neurofibromatosis
Mittal Asit,Masuria B,Gupta L,Sharma M
Indian Journal of Dermatology, Venereology and Leprology , 1997,
Abstract: A 14-year-old boy presented with multiple asymptomatic swellings all over the body. Cutaneous findings were classical for neurofibromatosis. Interesting and unusual finding was generalised thickening of peripheral nerve trunks. Biopsy from thickened nerve had features of neurofibromatosis.
Favus in a non-endemic area
Gupta L,Masuria B,Mittal A,Sharma M
Indian Journal of Dermatology, Venereology and Leprology , 1997,
Abstract: A typical case of favus of scalp in a 60-year-old female, resident of a village in district Udaipur (Rajasthan) is being reported for its rarity and occurrence in non-endemic zone. Some of the nails were also involved. Fungal hyphae were demonstrated in KOH examination from scalp and nails. Culture on Sabourauds agar medium grew Trichophyton violaceum.
Supply chain risk management: review, classification and future research directions
Singhal, P.,Agarwal, G.,Mittal, M.L.
International Journal of Business Science and Applied Management , 2011,
Abstract: In order to be more efficient, firms have adopted strategies such as outsourcing, global partnerships and lean practices. Although such strategies have tremendous abilities to improve the efficiencies but simultaneously they make the firms vulnerable to market uncertainties, dependencies and disruptions. Moreover, natural calamities and manmade crises have also put negative impact on strategic, operational and tactical performance of supply chains. These factors have triggered the interest of academia and industry to consider the risk issues as prime concerns. To capture the more fine-grained elements of diversified risk issues related to the supply chain we employ a multi-layered top town taxonomy to classify and codify the literature and put forward the probable dimensions for future research. We further study the pool of SCRM literature focusing on coordination, decision making and sector-wise SCRM implementation issues and derive relevant propositions.
Phonons, Nature of Bonding and Their Relation to Anomalous Thermal Expansion Behavior of M2O (M=Au, Ag, Cu)
M. K. Gupta,R. Mittal,S. L. Chaplot,S. Rols
Physics , 2013, DOI: 10.1063/1.4867437
Abstract: We report a comparative study of the dynamics of Cu2O, Ag2O and Au2O (i.e. M2O with M = Au, Ag and Cu) using first principle calculations based on the density functional theory. Here for the first time we show that the nature of chemical bonding and open space in the unit cell are directly related to the magnitude of thermal expansion coefficient. A good match between the calculated phonon density of states and that derived from inelastic neutron scattering measurements is obtained for Cu2O and Ag2O. The calculated thermal expansions of Ag2O and Cu2O are negative, in agreement with available experimental data, while it is found to be positive for Au2O. We identify the low energy phonon modes responsible for this anomalous thermal expansion. We further calculate the charge density in the three compounds and find that the magnitude of the ionic character of the Ag2O, Cu2O, and Au2O crystals is in decreasing order, with an Au-O bond of covalent nature strongly rigidifying the Au4O tetrahedral units. The nature of the chemical bonding is also found to be an important ingredient to understand the large shift of the phonon frequencies of these solids with pressure and temperature. In particular, the quartic component of the anharmonic term in the crystal potential is able to account for the temperature dependence of the phonon modes.
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