نتایج جستجو برای: systems science
تعداد نتایج: 1562508 فیلتر نتایج به سال:
Pedomodels have become a popular topic in soil science and environmentalresearch. They are predictive functions of certain soil properties based on other easily orcheaply measured properties. The common method for fitting pedomodels is to use classicalregression analysis, based on the assumptions of data crispness and deterministic relationsamong variables. In modeling natural systems such as s...
This article reports on the collaboration of six states to study how simulation-based science assessments can become transformative components of multi-level, balanced state science assessment systems. The project studied the psychometric quality, feasibility, and utility of simulation-based science assessments designed to serve formative purposes during a unit and to provide summative evidence...
مقدمه: درعلم آمارسنتی همه پارامترها بوسیله مدلهای ریاضی ومشاهده های تجربی تعریف می شد. بعضی وقتها به نظر می رسد چنین فرضهایی برای مسائل زندگی روزمره سختگیرانه باشد.مخصوصا درصورتیکه ما با داده های زبان شناسی یا احتیاجاتی که صریح نباشند سرکارداشته باشیم. برای اینکه این مشکل را ازبین ببریم ازروش فازی استفاده می کنیم. تعریف مسئله: درمرحله اول از تحقیق درباره انواع مختلف از پدیده(زیستی-فنی-فیزیک...
Joshua Garland, a) Andrew M. Berdahl, 2 Jie Sun, 4, 5, 6 and Erik Bollt 6, 7 2 Santa Fe Institute, Santa Fe, NM 87501 3 School of Aquatic & Fishery Sciences, University of Washington, Seattle, 4 WA 98195 5 Department of Mathematics, Clarkson University, Potsdam, NY 13699 6 Department of Physics, Clarkson University, Potsdam, NY 13699 7 Department of Computer Science, Clarkson University, Potsda...
Bioinformatics is an emerging field of science emphasizing the application of mathematics, statistics, and informatics to study and analysis of very large molecular biological (mostly, genetic and genomic) systems (data sets). In a comparatively broader setup of large biological systems without necessarily having a predominant genetic undercurrent, and having genesis in biometry to biostatistic...
Abstract Drug delivery is one of the major issues in the world of science, which receives a large part of the research in various fields. The ultimate goal of drug delivery is to help the patient with developing advanced drug delivery systems. These systems revolutionize the treatment of many diseases including cancer. Effective drug carriers can significantly reduce the undesirable side effec...
Nitric oxide (NO) is known as an unstable signaling molecule that can be produced by three different NO synthase (NOS) isoforms. It plays a vital role in a wide range of physiological processes in the body. For instance, in cardiovascular system NO acts as a blood vessel relaxant, while in central nervous system (CNS) it acts as a neurotransmitter. In reproductive system it regulates gonadotrop...
Abstract Drug delivery is one of the major issues in the world of science, which receives a large part of the research in various fields. The ultimate goal of drug delivery is to help the patient with developing advanced drug delivery systems. These systems revolutionize the treatment of many diseases including cancer. Effective drug carriers can significantly reduce the undesirable side effec...
Policy Design is defined to be a new area of inquiry that takes the methods of design into the world of social, economic and environmental policy. Policy exists at many levels and it is increasingly recognized that policies applied to one system may impact on policies applied to other systems. The European Commission suggest a ‘science of global systems’ to improve the way that science can help...
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