The newsvendor model is perhaps the most widely analyzed model in inventory management. In this singleperiod model, the only source of randomness is the demand during the period and one tries to determine the optimal order quantity in view of various cost factors. We consider an extention where supply is also random so that the quantity ordered is not necessarily received in full at the beginni...

The modeling of deteriorating hysteretic behavior is becoming increasingly important, especially in the context of seismic analysis and design. This paper presents the development of a versatile smooth hysteretic model based on internal variables, with stiffness and strength deterioration and with pinching characteristics. The theoretical background, development, and implementation of the model...

introduction social development is a phenomenon having close relationship with ways and how the people live in a society. the main goal of  social development is to upgrade the levels of general livings’ status by creating preferred conditions based on accepted values.focuses must be on: reducing poverty and improving the qualities of nutrition, hygiene, housing, occupation, education and fruit...

A periodic-review, random-demand inventory model is analyzed under the assumption that replenishment quantities are random fractions of the amounts ordered. Results of a previous study of a single-period model are generalized to form an easily computed heuristic adaptation of the (s, S) policy for use in this environment. The heuristic is based on the simple practice of scaling down pipeline in...

how to cite this article: fallah r, habibian s, noori-shadkam m. efficacy and safety of single low dose intravenous fentanyl in pain reduction of lumbar puncture in near term neonates by a randomized clinical trial. iran j child neurol. spring 2016; 10(2):60-66. abstract objective reduction of pain of invasive procedures in neonates can prevent pain side effects. the purpose of present study wa...

Objective: To investigate the impact of early skin-to-skin contact (SSC) provided for first 24?h on incidence of hypothermia in stable newborns weighing 1800?g or more during first 48?h of life. Study Design: Stable newborns (term and late preterm: Mean gestational age 37.7 (1.35) weeks, range 34-40 weeks) having birth weight 1800?g or more (Mean weight 2605.6 (419.8) grams) were enrolled after...

The rapid development of artificial intelligence (AI) technologies has become foundational to worldwide multidisciplinary research, thereby establishing “AI for science” as a new paradigm. Due the vast potential, an increasing number researchers are investigating application AI and data-driven methods earthquake engineering. In fact, over last few years, area arguably one research frontiers in ...

Earth's Future thanks its reviewers who contributed in 2022 In this article, we are delighted to publish the names of 780 peer submitted reviews (italicized have 3 or more reviews). We express our deep appreciation for your thoughtful comments and suggestions on manuscripts Future. Your scholarly assessments were fundamental decisions, significantly improved quality published papers. As a trans...

Information systems integration (ISI) represents the degree of cooperation in information system practices between business functions within a firm and between a firm and its trading partners. Although the establishment of information systems integration objective has been reported as one of the key concerns of top management because ISI enhances the firms’ competitiveness and growth, the class...