Definition: Dyspnea is defined as an awareness of difficulty in breathing It is therefore a symptom, usually described by the patient as \short of breath,\ whether the sensation is due to actual difficulty in breathing or is essentially an awareness of hyperventilation. If the symptom becomes striking, it always companies with dilatation of nares, cyanosis, use of accessory muscles of respiration and abnormalities of respiratory rate, depth or rhythm

第十一章万维网WWW安全 Ww(万维网)已经把分布式计算提升到了一个新的水平。移动( Mobile)代码 通过 Internet移动,而且在客户的机器上运行。电子商务带来了新的商业机会。在IT (信息技术)领域安全突然变成了一个非常关注的问题。这样,你自己会再次发现过去 习惯使用的IT系统已经有了相当大的变化这些问题是显而易见的

Why is the element stiffness matrix singular in a finite element formulation? 1. So that it can accomodate rigid element dis- placements without introducing spurious nodal 2 Because we made a mistake in the formula- tion the stiffness matrix should not be sin- g 3. Because we havent enforced any displace ment boundary conditions(it's a variational approach after all) Statement(1)

Intensive Study There's a Lot More to Life than a Job Para.1 It has often been remarked that the saddest thing about youth is that it is wasted on the young. Para. 2 Reading a survey report on first-year college students, I recalled the regret, \If only knew then what know now

IT在企业中应用的发展阶段说 信息技术在企业进化的三个阶段分别是：工 作自动化、信息管理和经营转型； 数据管理技术的发展大致经历了以下四个阶 段：人工管理阶段、文件系统阶段、数据库 阶段和高级数据库阶段

According to a survey and my own observation young people today are more consumeristic and less idealistic. The college students'major objective \is to be financially well off.\ Less important than ever is developing a meaningful philosophy of life. It is true that we need to be financially comfortable, but we also need to feel we have perspective on the world beyond the confines of our occupation It is the duty of educational institutions to help people get a better understanding

Symbolism and Ritual It's a huge topic, it could cover a whole course 1. Two examples: a. Mariage ritual from the Kuna called\the dragging' i. Bride and groom would not choose each other, but their parents would arrange the marriage secretly. The groom's friends would traditionally surprise him and drag him down the street. (Now a days, they don't fight back so hard and they know ahead of time)

What new element is Castigliano s Theorem introducing? 1. None, it's just a particular case of the PMPE 2. It's a totally different principle that allows to obtain solutions of elasticity problems with unprecedented accuracy and efficiency in- cluding relativistic effects

20.1 The magnetic field and its application 1. The magnetic field and its features Gravitational field FG=mg -gravitational force caused by mass Electric field =gE -electric force caused by electric charge Magnetic field--? While the magnetic field has similarities to the other fields, it also has some unique features that distinguish it from the others

It may be audacious even to attempt a definition of his greatness but it is not so difficult to describe the gifts that enabled him to create imaginative visions of pathos and mirth that, whether read or witnessed in the theatre, fill the mind and linger there he is a writer of great intellectual rapidity