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Crewed Mission to Mars May Be Exposed to Unsafe Levels of Radiation, Study Warns_我的网站

A |     While scientists and science fiction authors alike have long dreamed of sending crewed missions to Mars, a new study suggests these plans may hit a snag – a big one.,The authors of a yet to be peer-reviewed study argue that the participants of such a mission to Mars would end up being exposed to radiation – namely, to “energetic charged particles from Galactic and Solar origin” – both while in transit and while on the planet itself, with the “thin spacecraft shield” and “rarefied Martian atmosphere” offering little in the way of protection.,The research team attempted to gauge the impact of a simulated 1,000-day mission to Mars on various organs of the human body, and concluded that astronauts may be exposed to radiation doses above one Sievert, which is over the safe limit set by most space agencies, New Scientist points out.,“We suggest mitigation strategies such as improved ways of shielding and dietary supplements, and make recommendations for the safety of astronauts in future crewed missions to Mars,” the team wrote in the abstract of their work available on the arXiv preprint server.,Ideas about how astronauts may be protected from radiation during a mission to Mars have already been proposed, such as the concept of a radiation shield comprised of a fungus found growing at the Chernobyl Nuclear Power Plant.,Last year, one architecture studio even unveiled a project for a self-sufficient and sustainable city that would be built on the red planet itself.。    TnB Global Outsource的董事Lily Tan（站立者）表示，随着夫妻共享产假增加，公司将不得不重新设计工作岗位。

B | (图：CNA)政府分阶段增加夫妻共享产假，鼓励人们多生育。这一政策虽使为人父母者欢喜，但也引起了中小型企业在人员管理和业务持续性方面的担忧。据新传媒英文新闻网CNA报道，中小型企业对公司运营可能受到的影响感到担忧。TnB Global Outsource的董事Lily Tan表示，如何管理工作负荷是关键问题，公司将不得不重新设计工作岗位，并调整不同团队成员的任务。人力管理变得繁杂 Lily Tan指出，公司在员工宣布怀孕后会立即开始准备填补未来的空缺，必要时也会进行跨部门培训。但在会计行业中，每项工作任务有不同的期限，聘请新的临时员工可能会带来干扰。她表示，培训新员工接替现有员工的职位可能需要三到四个月的时间，具体取决于新员工的能力，这无疑会对公司的业务造成压力。

C | Emplifi人力资源公司总监Juliet Tan则指出，当一家公司只有一名员工负责关键业务时，安排替补人员变得尤为困难。她提到，如果聘用一名新的全职员工，原员工返回工作岗位时，公司将面临双重人员编制的问题。制定操作程序 确保业务不受影响 中小企业商会会长（ASME）洪煜建议企业加强人力资源流程，明确员工角色和职责。他也建议企业进行风险评估，提供明确的标准作业程序（SOP）和知识库，以确保在员工短期内离职时，业务不受影响。虽然新政策或会对企业造成影响，但Lily Tan认为，长期来看，这项政策将有助于提高国家生育率，对于企业和社会都有积极的作用。

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Published on:04:43:38