Perturbation techniques

When we model any physical problems to mathematical form, the governing equations may be linear, nonlinear and nonlinear boundary conditions in complex for known and unknown boundaries. The exact solution of those equations may or may not be obtain. Those equations are not solving for an exact solution then their solutions are approximated by using some techniques namely numerical techniques, analytic techniques, and combinations of both. Foremost among the analytic techniques are the systematic methods of perturbations in terms of a small or a large parameter or co-ordinate. These are called perturbation technique

Split hand/foot malformation with longitudinal deficiency of tibia: novel rehabilitation approach of a rare syndrome

Background: Split hand/foot malformation with longitudinal deficiency of tibia (SHFLD1) is an extremely rare congenital anomaly, even rarer are the descriptions in the literature of suitable techniques of treatment. Most of the literature available are case reports, based on genetic studies. This study highlights on functional management rather than anatomic correction of deformity. A clinician may not come across a patient with such a rare congenital disorder during his entire career.Methods: On retrospective review of hospital record from July 2008 to July 2018, we observed 5 cases of tibial deficiency associated with split hand and or split foot anomalies and diagnosed as SHHLD syndrome. Clinical and radiological analysis was done to plan out surgical and rehabilitation protocol for individual cases.Results: As per Flatt’s grouping of split hand, 3 limbs (37.5%) were group-1 type, 3 limbs (37.5%) of group-2 type and group-3 type was seen in 2 limbs (25%) of a patient with bilateral involvement. With respect to Jone’s radiological classification system, 4 limbs (57%) were of type Ia, 2 limbs (29%) were having type IV deformity and 1 limb (14%) was with type II deformity. One case agreed for amputation was fitted with above knee prosthesis and another one with custom designed bend knee prosthesis. Eldest case was rehabilitated with tricycle and modified orthosis. Surgical correction was tried in one case.Conclusions: Functional rehabilitation instead of anatomic correction should be tried at late presentation. Cleft closure should be done before development of functional adaptability

Synthesis and characterization of flame retardant jute-g-poly (2-ethyl hexylacrylate)/montmorillonite composites

303-310Chemically modified jute fiber (Tossa variety) has been grafted onto 2-ethyl hexylacrylate (2-EHA) to prepare copolymer using <i style="mso-bidi-font-style: normal">in situ developed transition metal complex initiating system; CuSO4/glycine/potassium monopersulfate (KMPS). Then its composites have been prepared by incorporating montmorillonite (MMT) clay. The samples have been characterized by Fourier Transform-Infrared (FTIR) spectroscopy and surface morphology by Scanning Electron Microscopy (SEM). The thermal behavior and tensile strength of the samples have been studied. The fire retardant properties are studied using oxygen consumption cone calorimeter. The biodegradability of the composites has been tested to see if it is ecofriendly by nature and viable for better commercialization

SERUM VITAMIN D3 LEVEL IN MIGRAINE PATIENTS- A HOSPITAL BASED CASE-CONTROL STUDY.

Introduction: The most prevalent type of headache is migraine and it typically presents with a unilateral, pulsatile severe headache lasting from 4 to 72 hours accompanied by nausea, photophobia, and transient neurological symptoms. Also, in recent years Vit D3 deficiency has emerged as a global public health problem amounting to about 30-80% of children and adults having Vit. D3 deficiency. The study was to be taken for the role of vitamin D3 in the severity of migraine patients. Materials and Methods: This case-control study was conducted in the Department of ENT and Biochemistry, VIMSAR Burla from January 2023 to June 2023. Age groups of 10 - 60 years of either sex (sample size 65 each) were examined clinically and the severity of migraine was evaluated by MIDAS Score and Biochemical estimation of serum vitamin D3 level was done by CLIA analyzer (Electra FA). Statistical analysis was performed with SPSS software version 21.0 (SPSS IBM corporation, Armonk. New York). The p-value < 0.05 was taken as statistically significant. Results: A total of 65 subjects each from case (clinically diagnosed cases of migraine patients) and control group were evaluated. In the present study, 21 males and 44 females were from the case and 22 males and 43 females were included in control groups. The mean age of males and females were (43.23± 2.3) and (32.58 ± 2.4) in case (42.23± 2.5) and (36.58 ± 2.6) were in control groups. Serum vitamin D3 level was lower in case groups (18.01 ng/mL) and in control, it was (34.09 ng/mL). The association of serum vitamin D3 concentration with case and control was highly significant (p<0.05). Conclusion: There was a significant deficiency of Vitamin D3 in migraine patients as compared to control where serum vitamin D3 levels were normal