background: to determine the efficacy of three different antiseptic solutions (control group (i), antibiotic solution – neomycin and polymyxin (ii), chlorhexidine 0.4% (iii), and povidone – iodine 10% (iv)) in disinfecting contaminated bone fragments. methods: under sterile conditions, the femora of 12 rabbits were removed and cut into six millimeter pieces. a total of 200 bone specimens were o...

background : textile wastewater is the most important pollutant of the environment. navy blue (nb) ce-rn is an important chemical dye widely used in the textile industry. the present study aimed to investigate the removal of nb textile dyes from aqueous solutions using magnetic iron oxide absorbents. methods: in this study, a sample of synthetic wastewater with nb concentration of 50 mg/l was u...

introduction the challenges related to the preservation of mongolia’s pastureland, its quality and condition are key concerns for the livestock sector. however, scientists, researchers and government agencies tend to focus solely on rangeland ecology and livestock. all too often, herders are overlooked and omitted from the discourse. this is the main reason i want to talk about people of the mo...

background euthanasia is one of the most intriguing ethical, medical and law issues that marked whole xx century and beginning of the xxi century, sharply dividing scientific and unscientific public to its supporters and opponents. it also appears as one of the points where all three major religions (catholic, orthodox, and islamic) have the same view. they are strongly against legalizing mercy...

a modified f-expansion method to find the exact traveling wave solutions of  two-component nonlinear partial differential equations (nlpdes) is discussed. we use this method to construct many new solutions to the nonlinear whitham-broer-kaup system (1+1)-dimensional. the solutions obtained include jacobi elliptic periodic wave solutions which exactly degenerate to the soliton solutions, triangu...

based on some stationary periodic solutions and stationary soliton solutions, one studies the general solution for the relative lax system, and a number of exact solutions to the korteweg-de vries (kdv) equation are first constructed by the known darboux transformation, these solutions include double and triple singular periodic solutions as well as singular soliton solutions whose amplitude de...

What is Innovation? It’s not always about inventing something entirely new. Innovation occurs at the intersection of invention and business insight. Creating industry solutions is not about doing something new for every client’s problem, it is about creatively solving business problems with reusable assets or building blocks. It is about using a systematic process to solve clients business and ...

this paper uses the weighted l$_1-$norm to propose an algorithm for finding a well-dispersed subset of non-dominated solutions of multiple objective mixed integer linear programming problem. when all variables are integer it finds the whole set of efficient solutions. in each iteration of the proposed method only a mixed integer linear programming problem is solved and its optimal solutions gen...

statement of problem: acrylic teeth of dentures are prone to discoloration due to frequent exposure to different colouring solutions in the oral environment. thus, in order to maintain their aesthetic appearance, they must possess high colour stability while exposed to colorant solutions. objectives: to compare the colour stability of three different brands of acrylic teeth following immersion ...

in this paper the periodic solutions of fourth order delay differential equation of the form $ddddot{x}(t)+adddot{x}(t)+f(ddot{x}(t-tau(t)))+g(dot{x}(t-tau(t)))+h({x}(t-tau(t)))=p(t)$  is investigated. some new positive periodic criteria are given.