The health-care economy is filled with unusual and even unique economic relationships. One of the least understood involves the peculiar roles of producer or “provider” and purchaser or “consumer” in the typical doctor-patient relationship. In most sectors of the economy, it is the seller who attempts to attract a potential buyer with various appealing factors of price, quality, and use, and it is the buyer who makes the decision. Such condition, however, is not common in most of the health-care industry.

In the health-care industry, the doctor-patient relationship is the mirror image of the ordinary relationship between producer and consumer. Once an individual has chosen to see a physician — and even then there may be no real choice — it is the physician who usually makes all significant purchasing decisions: whether the patient should return “next Wednesday”, whether X-rays are needed, whether drugs should be prescribed, etc. It is rare that a patient will challenge such professional decisions or raise in advance questions about price, especially when the disease is regarded as serious.

This is particularly significant in relation to hospital care. The physician must certify the need for hospitalization, determine what procedures will be performed, and announce when the patient may be discharged. The patient may be consulted about some of the decisions, but in general it is the doctor's judgments that are final. Little wonder then that in the eye of the hospital it is the physician who is the real “consumer”. As a consequence, the medical staff represents the “power center” in hospital policy and decision-making, not the administration.

Although usually there are in this situation four identifiable participants— the physician, the hospital, the patient, and the payer (generally an insurance carrier or government) — the physician makes the essential decisions for all of them. The hospital becomes an extension of the physician; the payer generally meets most of the bills generated by the physician/hospital, and for the most part the patient plays a passive role. We estimate that about 75-80 percent of health-care choices are determined by physicians, not patients. For this reason, the economy directed at patients or the general is relatively ineffective.

    Paparazzi, (狗仔队)or “paps”, are photographers who take pictures of famous people when they are not at the center of public attention. Paps are different from professional photographers or journalists because they never take ordinary photos.

    The goal for paparazzi is to get pictures that no one else will get and then sell the pictures to the buyer who offers the most money — normainly a small newspaper, magazine or website.

    There is no law against paparazzi taking pictures in public places. However, there are laws that protect certain individuals. For example, child protection laws stop improper pictures of anyone under 16 from being published.

    There is also no law that stops paparazzi from following celebrities（名人） and taking their pictures either. However, if paps are secretly following them and taking pictures of their faces, they could get into trouble.

    Most paparazzi hang out on streets and hot spots for celebrities, waiting for the opportunity to take a picture of a star. Many stay on the streets until the early hours of the morning when celebrities are leaving nightclubs and looking a little worse for wear. However, some have other ways to make sure they get pictures. Many paps are in contact with “informers” who know the locations of celebrities at any given time. They then pass the information on to paparazzi. An informer could be anyone — from a restaurant waiter to a salesman.

    Most of the time, paparazzi get a bad reputation for following celebrities. But sometimes stars or their managers will contact paps themselves and tell them exactly where and when they will go. What a love-hate relationship between paparazzi and celebrities!

    China will green light Internet medical services conducted by medical institutions as part of a broader push to promote Internet Plus Healthcare, those at a State Council executive meeting chaired by Premier Li Keqiang decided.

    Medical institutions will be allowed to provide online diagnostic services for some common and chronic diseases in patients' follow-up visits to their doctors. The top levels of hospitals will be encouraged to provide online services, including consultations (会诊), reservations and test result inquiries.

    As China joins the ranks of middle-income countries, the demand for health services has increased accordingly. Internet Plus Healthcare can help reduce the problem of inaccessible and expensive public health services that have long been a big concern for the general public.

    One decision coming out of the meeting says the intelligent review for health insurance will be applied and the one-stop settlement will be advanced. The real-time sharing of prescription and drug retail sales will be explored, as well.

    “We must waste no time in pushing forward the measures once the decisions made.” Li said. “In recent years, top-level hospitals in major cities have seen steady increases in the number of patents. Medical bills have become a heavy burden on families and high-end medical resources sill fall short of meeting the growing demand of the public.”

    To solve the problem, a two-pronged (双管齐下的) approach must be taken. One is to establish medical partnerships to strengthen cooperation between major hospitals and community clinics. The other is to bring forward Internet Plus Healthcare to promote the sharing of quality medical resources.

    The government will see to it that long-distance healthcare services cover all county-level hospitals. So more efforts will be made to ensure that high-speed broadband network will be extended to cover medical institutions in urban and rural areas. Dedicated internet access services will be set up to meet the needs for long-distance healthcare services.

    A group of scientists is gathering today in the U. K. to discuss a thick piece of ice that's cracking in Antarctica, which is of the size of Delaware.

    The ice shelf is called Larsen C, and it now has a 90-mile crack running through it. The big rift (裂缝) is slicing the ice shelf from top to bottom. But this is not just another sad climate change story. It's more complicated. "A lot of things are going on deep inside the ice," says Adrian Luckman, a glaciologist.

    Luckman says climate change is certainly influencing this region. Larsen C used to have two neighbors to the north, Larsen A and Larsen B. As the air and water warmed, those ice shelves started melting and then disappeared in 1995 and 2002. But the crack in Larsen C seems to have happened on its own, for different reasons.

    Larsen C has many cracks. All ice shelves do. This particular crack has been around since at least the 1960s. The unusual part is that in 2014, this crack — and only this crack — started growing quickly. Why?

    "Well, that is a little bit of a mystery and that's why it drew itself to our attention," says Luckman. One puzzling aspect is how it managed to cut through areas of softer ice that bind (连接) the ice from neighboring glaciers into one giant sheet. Starting in 2014, that soft ice did very little to slow down this rift.

    Scientists are split on how important this crack is for the stability of the whole ice shelf. Some say if this giant section breaks off, it won't make a difference. Others disagree.

    "Ice shelves are the gates of Antarctica in a way, and the gatekeepers of Antarctica. The ice shelves are already floating, so if they fall apart it does not immediately affect sea levels. It's what they hold back -water from all the inland glaciers — that could be problematic. If all the water packed in those glaciers made their way to the sea, it could significantly raise global sea levels," says Ala Khazendar, a geophysicist.

    While most people have the idea that volcano eruptions are one of the most destructive disasters in nature, seeing a volcano erupt is a wonderful experience, and you can really feel the heat by climbing to the summit of Pacaya for a close-up view.

    There are guided tours every day up this highly active volcano from Antigua, giving travelers a chance to see Mother Nature at her most powerful. Pacaya is an easy drive from Antigua, a beautiful city with many colorful houses along its old streets that are turned into art-works during its Holy Week festival. No matter when you come to Antigua, you won't miss the Pacaya-tour companies.

    But climbing Pacaya is no easy job: it is 2,560 meters high, and reaching the summit takes two to three hours of seemingly one-step-forward and two-step-back movements. As you climb you hear the dull sounds of eruptions high above. Steaming, hot remains from recent eruptions begin to line the path as you near the active summit: the Mckenney Cone (火山锥). Just as though you were going to walk over to the edge of the cone, the road turns to the left and up to the relative safety of the old, inactive summit.

    Many tours are timed so that you arrive at the cone of the volcano in plenty of time for sunset and the full contrast between the erupting red lava(岩浆) and the darkening sky. On a good day the view from the summit is extremely exciting. The active mouth boils, sending red lava over its sides, and once in a while shoots hot steams up to 100 meters into the air. There is a strong bad smell in the air even if you take care to be upwind of the cone. As evening turns deeper into the night, the burning lava quietly falls down the side of the volcano. For you, too, it is time to get down.

At a time when industries are under greater pressure to reduce costs and increase efficiencies, more production facilities are turning to digital sensing technology to provide the real-time insights they need for improved performance. What if one digital sensor could measure multiple signals?

Yokogawa's DPharp (差压传送器) digital technology has the unique ability to measure two pressure parameters (参数), delivering reliable and accurate measurement of plant operations. The unique aspect of this digital technology is that it measures two parameters in one sensor module, providing additional insight into a plant's operations. It is the only sensor in the world that does this.

DPharp transmitters (发射器) use silicon (硅) resonant (谐振的) sensor technology to measure both differential (差别) and still pressure. The sensor consists of two H-shaped crystal silicon resonators that shake at a certain frequency and, when pressure is applied, the frequency of one resonator increases while the other decreases. By monitoring these frequencies digitally, both differential and still pressure can be measured at the same time. The frequency output is directly read by the central processing unit of the transmitter.

DPharp can be used in any processing plant across any industry—oil and gas to food and drinks. DPharp's unique digital sensing technology allows engineering firms and plant engineers to create designs that will equate to an average reduction of 40 percent. Where they would typically use five measuring devices, they are using three by using the multi-sensing technology. That is a significant cost reduction in the number of devices installed and the added benefit is that, as there are less devices, the engineering and design is less complex, which means less materials and less equipment to maintain. Furthermore, there are fewer transmitter spares required, which reduces costs. Tony Farah, Product Manager, said that more organisations are seeing the significant benefits of smart devices like DPharp.