Corona

电晕
  • 文章类型: Journal Article
    护士在应对流行病方面发挥着关键作用,但通常被认为只是“技术”专家,而没有政治代理。这项研究首次对护士和其他一线卫生工作者与COVID-19相关的抗议活动进行了全球比较分析,重点关注大流行的前18个月。我们利用护士抗议和抗议司机的定量和定性数据。结果显示,此类抗议活动普遍存在:我们在90个国家/地区确定了3515起事件,存在几个区域热点。抗议的最常见原因是恶劣的工作条件和工作场所安全不足,其次是更广泛的社会问题,如贫困和种族主义。在所考虑的大部分时间里,要求接种疫苗的抗议活动(一种很少被探索的现象)比反疫苗事件更普遍。抗议频率在COVID-19相关死亡率高的国家最高,人类发展水平高,以及大流行开始时的强烈社会运动。认识到护士作为政治行为者的关键作用将有助于改善卫生政策并维持一支有能力的医疗队伍,特别是在大流行等严重危机期间。
    Nurses play key roles in dealing with pandemics yet are often conceived solely as \"technical\" experts without political agency. This study conducts the first global comparative analysis of COVID-19-related protests of nurses and other frontline health workers, with a focus on the first 18 months of the pandemic. We draw on quantitative and qualitative data on nurses\' protests and protest drivers. Results show that such protests were widespread: We identify 3515 events in 90 countries, with several regional hotspots existing. The most common reasons for protests were poor working conditions and insufficient workplace safety, followed by wider social issues like poverty and racism. For most of the time period under consideration, protests demanding access to vaccinations (a rarely explored phenomenon) were more widespread than anti-vaccination events. Protest frequency was highest in countries with high COVID-19-related mortality rates, high levels of human development, and strong social movements at the onset of the pandemic. Recognising the key role of nurses as political actors would help to improve health policies and to maintain a capable healthcare workforce, particularly during acute crises like pandemics.
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  • 文章类型: Journal Article
    纳米粒子因其独特的表面结构和纳米效应而引起了人们的广泛关注,它呈现出像声音一样的新颖特征,光,电力,磁性,和热性能。然而,两个关键缺陷阻碍了它们的应用:(1)高熔融温度导致的加工性差(例如,>1000°C)对于某些无机纳米粒子;(2)由于纳米粒子容易聚集而引起的纳米效应的限制。为了解决这些问题,在二十一世纪初,成功设计和制造了具有硬核和柔性有机链的无溶剂纳米流体(SNFs)。有前途的SNFs技术不仅解决了纳米材料的分散问题,而且还赋予了纳米颗粒新的功能化。到目前为止,许多研究人员一直致力于开发不同的核心和灵活的有机聚合物链,以赋予SNFs特定的功能,例如电导率,荧光,润滑性,等等。然而,关于功能性SNFs的制备和应用研究进展的综述报道很少。为了更好地了解SNF,本文对发展进行了全面调查,fabrication,以及功能性SNF的应用。
    Nanoparticles have aroused widespread interest because of their unique surface structure and nano effect, which presents novel characteristics like as sound, light, electricity, magnetism, and thermal properties. However, two critical defects have hindered their applications: (1) poor processability resulting from the high melting temperature (e.g., >1000 °C) for some inorganic nanoparticles; (2) the restriction of the nano effect caused by the easy aggregation of the nanoparticles. To solve those issues, solvent-free nanofluids (SNFs) with hard cores and flexible organic chains were successfully designed and fabricated at the beginning of the twenty-first century. The promising technology of SNFs not only solved the dispersion problem of nanomaterials but also imparted novel functionalization to nanoparticles. Up to now, many researchers have been devoted to developing diverse cores and flexible organic polymer chains to endow SNFs with particular functions, such as conductivity, fluorescence, lubricity, and so on. However, there are few review reports on the research progress in the fabrication and applications of functional SNFs. To gain a better understanding of SNFs, this paper presents an overall investigation into the development, fabrication, as well as the applications of functional SNFs.
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  • 文章类型: Journal Article
    背景:卒中是全球第二大死亡原因。最近的研究表明,COVID-19大流行与更高的中风频率有关。这项研究旨在调查科尔曼COVID-19大流行前两年和期间中风的流行病学方面。
    方法:这项横断面研究在Kerman进行。参与者包括所有确诊为中风的患者。COVID-19的确认是基于PCR检测阳性。数据采用SPSS软件进行分析。V24软件。
    结果:在这项研究中,对4152例脑卒中患者进行了评估。在COVID-19大流行之前和期间,中风的频率是相同的。COVID-19的卒中患者总数为298例(8.16%)。在COVID-19大流行之前,缺血性中风患者的频率为1751,在大流行期间为1770。大流行前后,缺血性脑卒中患者的平均年龄分别为67.42±14.14和64.49±14.46,差异有统计学意义(P>0.001)。我们的发现表明,大流行前后缺血性中风的NIHSS之间存在显着差异(P<0.001)。脑卒中患者的死亡率在COVID-19之前为111例,在COVID-19的前两年为115例。除死亡率(P<0.001)外,有和没有COVID-19的缺血性卒中患者在其他人口统计学变量上没有显著差异.
    结论:在COVID-19大流行期间的缺血性卒中患者比在大流行之前的缺血性卒中患者更年轻,并且有更多的神经功能缺损。COVID-19与缺血性卒中患者较高的死亡率相关。
    BACKGROUND: Stroke is the second leading cause of death worldwide. Recent studies have shown that the COVID-19 pandemic has been associated with a higher frequency of stroke. This study aimed to investigate the epidemiologic aspects of stroke two years before and during the COVID-19 pandemic in Kerman.
    METHODS: This cross-sectional study was conducted in Kerman. The participants included all patients with a confirmed diagnosis of stroke. COVID-19 confirmation was based on a positive PCR test. The data was analyzed with SPSS.V24 software.
    RESULTS: In this study, 4152 patients with stroke were evaluated. The frequency of stroke before and during the COVID-19 pandemic was the same. The total number of stroke patients with COVID-19 was 298 (8.16%). The frequency of ischemic stroke patients before the COVID-19 pandemic was 1751 and during the pandemic was 1770. Before and after the pandemic, the mean age of ischemic stroke patients was 67.42±14.14 and 64.49±14.46 respectively, which showed a statistically significant difference (P>0.001). Our findings showed a significant difference between the NIHSS of ischemic stroke before and after the pandemic (P<0.001). The mortality rate of stroke patients was 111 before COVID-19 and 115 patients in the first two years of COVID-19. Except for the mortality rate (P<0.001), there was no significant difference in other demographic variables between ischemic stroke patients with and without COVID-19.
    CONCLUSIONS: The patients with ischemic stroke during the COVID-19 pandemic were younger and had more neurological deficits than the ischemic stroke patients before the pandemic. COVID-19 was associated with higher mortality in patients with ischemic stroke.
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  • 文章类型: Journal Article
    新抗生素的发现率低,商业抑制投资,以及对现有药物的不当使用造成了抗生素耐药性(AMR)的完美风暴。AMR的这种“无声大流行”隐约可见,全球威胁人类健康。串联,许多潜在的新型候选药物没有进展,由于提高的疏水性,这可能导致不良的细胞内内化和不良的血清蛋白结合。随着有效抗生素的数量减少,启用改善治疗结果的技术平台,例如重新利用现有的生物活性剂,是一个潜在的选择。纳米载体(NC)介导的药物递送是放大治疗结果的一种途径。这里,检查了封装在基于脂质的立方体中的几种抗生素的性能。研究结果表明,封装提供药物浓度的显着改善:抑制结果,并有助于与内在化相关的其他治疗挑战,酶降解,和蛋白质结合。我们强调,目前处于边缘地位的大院,novobiocin,变得活跃,并显示对致病性革兰氏阴性菌株的抑制作用显着增加,铜绿假单胞菌.包封提供多种生物活性物质的共同递送,作为减轻单一疗法的失败和解决抗性的策略。优化的药物选择和纳米载体选择的基本原理通过与实验抑制结果一致的运输模型来检验。结果表明,脂质纳米载体封装可以缓解抗生素治疗面临的一系列挑战,并增加可用于治疗细菌感染的抗生素范围。
    Low discovery rates for new antibiotics, commercial disincentives to invest, and inappropriate use of existing drugs have created a perfect storm of antimicrobial resistance (AMR). This \"silent pandemic\" of AMR looms as an immense, global threat to human health. In tandem, many potential novel drug candidates are not progressed due to elevated hydrophobicity, which may result in poor intracellular internalization and undesirable serum protein binding. With a reducing arsenal of effective antibiotics, enabling technology platforms that improve the outcome of treatments, such as repurposing existing bioactive agents, is a prospective option. Nanocarrier (NC) mediated drug delivery is one avenue for amplifying the therapeutic outcome. Here, the performance of several antibiotic classes encapsulated within the lipid-based cubosomes is examined. The findings demonstrate that encapsulation affords significant improvements in drug concentration:inhibition outcomes and assists in other therapeutic challenges associated with internalization, enzyme degradation, and protein binding. We emphasize that a currently sidelined compound, novobiocin, became active and revealed a significant increase in inhibition against the pathogenic Gram-negative strain, Pseudomonas aeruginosa. Encapsulation affords co-delivery of multiple bioactives as a strategy for mitigating failure of monotherapies and tackling resistance. The rationale in optimized drug selection and nanocarrier choice is examined by transport modeling which agrees with experimental inhibition results. The results demonstrate that lipid nanocarrier encapsulation may alleviate a range of challenges faced by antibiotic therapies and increase the range of antibiotics available to treat bacterial infections.
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  • 文章类型: Journal Article
    虽然新冠肺炎疫情的第二波让世界步履蹒跚,过去几个月也导致了新一轮的网络犯罪。以下文章分析了与大流行相关的网络犯罪的背景和表现,并展示了我们的刑法系统如何能够应对冠状病毒时代的当前挑战。
    While the second wave of the Covid-19 pandemic is keeping the world on tenterhooks, the last few months have also led to a new wave of cybercrime. The following article analyzes the background and manifestations of pandemic-related cybercrimes and shows how our criminal law systems are able to deal with current challenges in the age of the coronavirus.
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  • 文章类型: Journal Article
    COVID-19大流行以及为打击它而采取的措施导致生活的各个领域受到严重限制,包括流动性。为了研究这种破坏性情况对整个亚组的流动行为的影响,以及他们如何根据特殊情况塑造他们的流动性,可以帮助更好地理解,人们对外部变化的反应。
    本文提出的研究的目的是调查在多大程度上,在德国爆发SARS-CoV-2期间,流动性行为如何以及在哪些领域发生了变化。此外,重点是比较有和没有封锁的联邦州,以调查这一措施对流动性变化的可能贡献。我们通过在线调查询问受访者的旅行目的和旅行频率,他们在COVID-19危机背景下选择交通方式的原因。对于本文提出的分析,我们使用了4157名调查参与者的数据(2512名没有封锁,1645带锁定)。
    数据证实,随着公共交通的转移和汽车使用量的增加,对出行行为产生了深远的影响。步行和骑自行车。有和没有封锁的联邦州的比较仅显示出孤立的差异。看来,即使封锁有一些小影响,它在观察到的行为变化中的作用很小。
    UNASSIGNED: The COVID-19 pandemic and the measures taken to combat it led to severe constraints for various areas of life, including mobility. To study the effects of this disruptive situation on the mobility behaviour of entire subgroups, and how they shape their mobility in reaction to the special circumstances, can help to better understand, how people react to external changes.
    UNASSIGNED: Aim of the study presented in this article was to investigate to what extent, how and in what areas mobility behaviour has changed during the outbreak of SARS-CoV-2 in Germany. In addition, a focus was put on the comparison of federal states with and without lockdown in order to investigate a possible contribution of this measure to changes in mobility. We asked respondents via an online survey about their trip purposes and trip frequency, their choice of transport mode and the reasons for choosing it in the context of the COVID-19 crisis. For the analyses presented in this paper, we used the data of 4157survey participants (2512 without lockdown, 1645 with lockdown).
    UNASSIGNED: The data confirmed a profound impact on the mobility behaviour with a shift away from public transport and increases in car usage, walking and cycling. Comparisons of federal states with and without lockdown revealed only isolated differences. It seems that, even if the lockdown had some minor effects, its role in the observed behavioural changes was minimal.
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  • 文章类型: Journal Article
    新型冠状病毒是一种流行性传染病,影响所有年龄组,在老年人群和慢性病中发病率较高。联系人,在受感染患者的气道操作期间,液滴和空气传播对疾病的传播具有作用。本研究旨在为手术室做好准备,并为患者和医护人员提供保护。
    本系统评价是根据系统评价和荟萃分析(PRISMA)方案的首选报告项目进行的。像PubMed通过HINARI这样的搜索引擎,Cochrane数据库,GoogleScholar将获得关于疑似或确诊新型冠状病毒患者的手术室团队安全和围手术期麻醉管理的最新证据。
    包括气管内插管在内的雾化高风险程序,肺开放手术和气道抽吸应使用通气面罩进行管理。
    所有医护人员在手术过程中应根据患者的类别佩戴个人防护装备。应推迟选择性程序,以节省和调动资源来保护和管理大流行疾病。紧急程序,包括烧伤,剖腹产,恶性肿瘤,内脏穿孔和外伤应佩戴个人防护设备。
    UNASSIGNED: Novel Corona Virus is a pandemic infectious disease which affects all age groups with higher incidence in geriatric population and chronic diseases. Contact, droplet and airborne had a role for transmission of the disease during airway manoeuvres in infected patients. This study aimed to prepare the operation room and provide protection of both the patient and health care personnel.
    UNASSIGNED: This systematic review was conducted according to the Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) protocol. Search engines like Pub Med through HINARI, Cochrane database, Google Scholar to get access for current and updated evidences on operating room team safety and perioperative anesthetic management for patients with suspected or confirmed novel corona virus.
    UNASSIGNED: High risk procedures for aerosolization including endotracheal intubation, open lung surgery and airway suctioning should be managed with vented masks.
    UNASSIGNED: All health care personnel should wear personal protective equipment based on the class of patients during surgery. Elective procedures should be postponed to save and mobilize resources for the protection and management of the pandemic disease. Emergency procedures including burn, Cesarean section, malignant neoplasia, perforated viscus and traumatic injury should be operated with wearing of personal protective equipment.
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  • 文章类型: Journal Article
    随着新冠肺炎大流行的封锁迫使世界各地的人口完全依赖数字设备工作,研究,和社交,在这个特殊时期,关于数字设备使用增加可能产生的负面影响的已发表研究并不缺乏。为了从经验上解决大流行期间对数字依赖性的担忧,我们从哥本哈根59名大学生的每日自我报告日志的研究中得出的结果,丹麦,在2020年4月和5月的4周时间里,调查他们对数字设备的日常使用情况。我们强调两个主要发现。首先,学生报告高度的在线疲劳,表示对他们不断依赖数字设备感到沮丧。另一方面,学生们发现了使用数字设备维护社会关系的创造性方法,帮助他们应对孤立。然而,从长远来看,这种在线互动被视为物理互动的不良替代品。我们的研究结果表明,对数字设备的依赖是如何表现出矛盾的,在那里,数字通信被视为治愈,和原因,感到孤立,与正常感疏远。
    As the COVID-19 pandemic lockdowns forced populations across the world to become completely dependent on digital devices for working, studying, and socializing, there has been no shortage of published studies about the possible negative effects of the increased use of digital devices during this exceptional period. In seeking to empirically address how the concern with digital dependency has been experienced during the pandemic, we present findings from a study of daily self-reported logbooks by 59 university students in Copenhagen, Denmark, over 4 weeks in April and May 2020, investigating their everyday use of digital devices. We highlight two main findings. First, students report high levels of online fatigue, expressed as frustration with their constant reliance on digital devices. On the other hand, students found creative ways of using digital devices for maintaining social relations, helping them to cope with isolation. Such online interactions were nevertheless seen as a poor substitute for physical interactions in the long run. Our findings show how the dependence on digital devices was marked by ambivalence, where digital communication was seen as both the cure against, and cause of, feeling isolated and estranged from a sense of normality.
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  • 文章类型: Journal Article
    基于合作的努力,我们提出了一个由三个虚构的叙事叙述组成的自动人种学文本拼贴画,这些叙述是由于在电晕大流行期间遇到的个人经历的混合物而产生的。这些叙述说明了大流行和大流行期间数字技术的使用增加如何影响现实体验以及(跨)形成的思维和社会关系的例子和批判性反思。这场危机邀请我们反思如何将当前充满数字技术无处不在和影响的限制用作大规模反思的机会。
    Based on a collaborative endeavor, we present an autoethnographic textual collage of three fictionalized narrative accounts produced as a result of an amalgam of personal experiences encountered during the corona pandemic. The narrative accounts serve as illustrating examples of and critical reflections on how the pandemic and the increased use of digital technologies during the pandemic have affected the experience of reality and (trans)formed thinking and social relations alike. The crisis invites us to reflect on how the current confinement saturated with the ubiquitous presence and influence of digital technologies can be used as an occasion for large-scale reflections.
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  • 文章类型: Editorial
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