Arecently published paper addressed the interesting topic of prevention of erectile dysfunction (ED) with tadalafil, a pbosphodiesterase-type 5 inhibitor (PDE5i) in patients undergoing radiation therapy for locali...
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Arecently published paper addressed the interesting topic of prevention of erectile dysfunction (ED) with tadalafil, a pbosphodiesterase-type 5 inhibitor (PDE5i) in patients undergoing radiation therapy for localized prostate cancer. Tadalafil 5 mg or placebo was administered once-daily for 24 weeks in patients undergoing external-beam radiotherapy (EBRT) or brachytherapy (BT) for prostate cancer. This randomized trial did not show superior efficacy of the active drug compared with placebo 4-6 weeks after stopping the study drug. Furthermore, patients younger than 65 years did not respond significantlybetter than older patients.
Almost seven years after winning its bid to host the Olympic Winter Games in Beijing,China will finally present its long-prepared competition venues to the world next *** addition to the architectural design of the ve...
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Almost seven years after winning its bid to host the Olympic Winter Games in Beijing,China will finally present its long-prepared competition venues to the world next *** addition to the architectural design of the venues,the visual identity of the Games is also expected to be a *** emblems,pictograms,mascots and core graphics all contribute to the appearance of each venue and of the Games as a whole.
英语中,“竭尽全力”的表达多种多样,下面我们就一起来了解一下。***/try one’s(level)best例如:It doesn’t matter if you fail,just do your level best.即使失败了也没关系,只要你尽力了就行。此夕卜,try one’s hardest、do the b...
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英语中,“竭尽全力”的表达多种多样,下面我们就一起来了解一下。***/try one’s(level)best例如:It doesn’t matter if you fail,just do your level best.即使失败了也没关系,只要你尽力了就行。此夕卜,try one’s hardest、do the best one can、do one’s possible与do all/every-thing in one’s power也可表7K与上述词组相同的意义。
Heat sinks were invented to absorb heat from an electronic circuit conduct, and then to dissipate or radiate this heat to the surrounding supposedly, ventilated space, at a rate equal to or faster than that of its bui...
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Heat sinks were invented to absorb heat from an electronic circuit conduct, and then to dissipate or radiate this heat to the surrounding supposedly, ventilated space, at a rate equal to or faster than that of its buildup. Ventilation was not initially recognized as an essential factor to thermal dispersion. However, as electronic circuit-boards continued to heat up, circuit failure became a problem, forcing the inclusion of miniaturized high speed fans. Later, heat sinks with fins and quiet fans were incorporated in most manufactured circuits. Now heat sinks come in the form of a fan with fans made to function as fins to disperse heat. Heat sinks absorb and radiate excess heat from circuit-boards in order to prolong the circuit’s life span. The higher the thermal conductivity of the material used the more efficient and effective the heat sink is. This paper is an attempt to theoretically design a heat sink with a temperature gradient lower than that of the circuit board’s excess heat.
This article is about the structure of expanding universe. Here I am trying to create a structural model of universe according to my thoughts. Studies showthat universe is accelerating its rate of expansion. Here I am...
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This article is about the structure of expanding universe. Here I am trying to create a structural model of universe according to my thoughts. Studies showthat universe is accelerating its rate of expansion. Here I am trying to get some conclusions according to my thoughts. In my opinion, our universe is under a gravitational frame with all the matters in it. In this gravitational frame of universe we can consider our universe as a closed system and the empty space outside the frame as an open system. There are two possibilities we can find. One is relative motion of the objects inside the frame. By this way we can feel the universe is accelerating its expansion, but it is not. Another one is the vacuum energy absorption and negative pressure inside the frame. According to this thought, we can say that universe is accelerating and it can continue its motion at present conditions on it, even the force created by the big bang is decreasing. The other point is that, once the absorbed vacuum can create a negative pressure inside the frame, there is no need for the concept of dark energy in our universe [1]. According to this model, negative pressure inside the frame will be created by the absorbed vacuum from the space. So the existence of dark energy can be questioned. In this model, dark energy doesn't play any role in the expansion or rate of acceleration on the expansion of universe. So the dark energy doesn’t exist in this model. During the absorption of vacuum to the frame, it will increase the volume of the frame. It will create free spaces inside the frame to accommodate the vacuum inside the frame. The rest of the absorbed vacuum will move to the center of the frame by the action against gravity and the force created by the big bang. It will increase the density of the absorbed vacuum in the center and can create the negative pressure on the frame to pull it outside to the empty space. It will cause the acceleration on expansion of universe. These things are ex
My dear readers,Weather is very important to *** need to know the weather to plan our *** is curious about the different kinds of weather How does she learn about the weather?Let's read to find out.
My dear readers,Weather is very important to *** need to know the weather to plan our *** is curious about the different kinds of weather How does she learn about the weather?Let's read to find out.
()*** does the man sometimes do?*** ball games.()*** many hours did Cindy sleep last night?***.()*** often does Mary play ping-pong?*** *** a *** a week.
()*** does the man sometimes do?*** ball games.()*** many hours did Cindy sleep last night?***.()*** often does Mary play ping-pong?*** *** a *** a week.
一、听录音,选出你所听到单词对应的图片。每题读三遍。二、听录音,选出你所听到的句子。每题读三遍。()1.A.I have a soccer ball.B.I have a tennis ball.C.I have a hat.()*** doesn’t like *** doesn’t have a *** don’t watch T...
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一、听录音,选出你所听到单词对应的图片。每题读三遍。二、听录音,选出你所听到的句子。每题读三遍。()1.A.I have a soccer ball.B.I have a tennis ball.C.I have a hat.()*** doesn’t like *** doesn’t have a *** don’t watch TV.()3.A.I play soccer after *** watches TV after *** likes tomatoes.()4.A.I like rice for lunch.
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