the present era of technological advances, particularly in the various imaging modalities, there is a growing conception among practicing physicians in cardiovascular medicine that bedside physical examination is unnecessary and does not provide useful information

Significance General condition comprehension Confirm history information Specific sign collection for the diagnosis of certain disease infers certain accessory examines Grossly preclude some certain disorders Contribute a relation between the physician and the patient

Definition Cyanosis refers to bluish(带蓝色的 带青色的) color of the skin and mucous membranes resulting from an increased quantity of reduced hemoglobin(亚铁血 红蛋白;还原血红蛋白),orof hemoglobin derivatives, in the small blood vessels of those areas. It is usually most marked in the lips, nail beds(甲床),ears, and malar (颧骨的;颊的) eminences

In the present era of technological advances, particularly in the various imaging modalities, there is a growing conception among practicing physicians in cardiovascular medicine that bedside physical examination is unnecessary and does not provide useful information

The best known and most widely used active packaging technologies for foods today are those engineered to remove undesirable substances from the headspace of a package through absorption, adsorption or scavenging. To achieve this goal a physical or chemical absorbent or adsorbent is incorporated in the packaging material or added to the package by means of a sachet. In most publications

56.1 Introduction 56.2 Physical Sensors Temperature Sensors.Displacement and Force. Optical Radiation 56.3 Chemical Sensors Ion-Selective Electrode. Gas Chromatograph 56.4 Biosensors

Policy analysis is hard Why is it so hard to tell what's going on with government actions? Consider lowering income tax rates. Will lowering taxes increase work effort and labor supply? · Unlike the physical and natural sciences, difficult to perform carefully controlled experiments on the economy

一、课程目的 物理化学和胶体化学是研究变化规律性的基础科学,本课程是农业院校主要的基础课程,是生命科学、土壤科学、食品科学、环境科学等专业本科生的必修课程。该课程科学地、系统地、严谨地阐明化学的基本理论,为学生深入学习有关专业课程打下坚实的基础

1. Living matter is composed mostly of the lighter elements 1.1 The composition of living matter is strikingly different from that of its physical environment(1810s) 1.2 The elements found in living organisms also exist in nature(especially in seawater and atmosphere)

An understanding of the nature of wastewater is essential in the design and operation of collection, treatment, and reuse facilities, and in the engineering management of environmental quality. To promote this understanding, the information in this chapter is presented in eight sections dealing with (1)an introduction to the constituents found in wastewater, (2)sampling and analytical procedures, (3) physical characteristics, (4)inorganic nonmetallic constituents, (5) metallic constituents