In this article, we propose a new strategy for solving problems associated with weakly singular partial integro-differential equations. Our approach uses Multiple knot B-splines to develop a powerful arithmetical solution. We analyze the functional matrices used in this technique and provide a detailed overview of its functionality. additionally, we demonstrate the convergence of the proposed advance and verify its effectiveness via several numerical simulation.

Root knot nematodes are among the most important groups of plant pests and is a major cause of crop loss. In this research, the control of nematode of tomato in greenhouse was conducted using tobacco dust as a bio-nematicide. I.M.P. diagnostic keys and some other common references were used to accurately identify species and the race of nematode. Experiments were carried out using complete randomized block design with 5 replication and 7 treatments at different rates of 0, 5, 10, 15, 20, 25 and 30 gr/kg. Soil shoot lengths, root fresh weights and root gall index were measured in all treatments. Results showed that 20gr. tobacco dust per kg soil was the best. The experiments were conducted over a two year period. The results showed that about 100gr per plant was the most effective treatment and the striped application at transplanting time proved to be recommendable.

Despite the introduction of novel sutureless posterior chamber intraocular lens (IOL) fixation techniques, some conditions still require suture-assisted scleral fixation. If the scleral fixation suture knot is left directly under the conjunctiva, it may become exposed, resulting in an increased risk of endophthalmitis. To avoid this problem, we offer a new alternative, simple, and safe way for burying the end of the suture using knots in this report.

Purpose: To report a patient with MEWDS.Patient and findings: A 65-year-old man presented with sudden decrease of vision in his right eye. On ophthalmoscopy of the involved eye, numerous small discrete white lesions were detected superficially and deep in the retina around the disc and macula. On visual field examination, enlargement of the blind spot was detected. Fluorescein angiography was unremarkable. On electroretinography, the a-wave was decreased minimally. The patient was followed and after 2 months, significant improvement of visual acuity and visual field was observed.Conclusion: MEWDS is a rare intraocular inflammatory disease of unknown etiology and in contrast to our patient, more frequent in females. The natural course is generally benign with spontaneous disappearance of the lesions and improvement of vision in 6 to 8 weeks.

In this paper, which is the first paper from a trio on important developments of low dimensional topology in the past 100 years, we review the history and major developments in knot theory. This historic account includes the initial attempts at formulating some of the main questions about knots in a mathematical language, putting the definitions and arguments in a rigorous mathematical framework, and employing tools from other fields of mathematics to extract interesting and intriguing results in knot theory. The study starts from Tait's work in nineteenth century and reviews the important steps taken before the introduction of gauge theory. In particular, we will review the prime decomposition of knots and various polynomial invariants constructed for knots and links. We finish the paper by discussing some of the important conjectures in knot theory which have surprisingly simple statement. We also review some of the recent developments around the aforementioned conjecture, including some theorems including contributions from the author.