Mr Ebel, let's talk first about last year. How did it go for TUI ? It was very successful, in a demanding market environment, especially considering the political and economic conditions – above all in Germany and in Europe. The financial year 2024 was very successful for TUI . We have reported very positive progress on revenue as well as earnings. Sustainable, profitable growth remains our aim, but that includes a healthy balance sheet structure. We are a big step closer to our target of reducing net leverage to well below 1x. We have maintained our crucial focus on free cashflow, which we are using for investments and for paying back debt. We are investing selectively in operations with a promising future, but at the same time we are strengthening our financial basis. That is in the best interests of the company, our shareholders and our employees. TUI is much more robust today.
近年来,气候变化已成为全球紧急状态,因为它有助于加速海平面上升,增加对天气状况以及飓风,热带风暴和干旱等自然危害的频率和强度的不确定性,并扩大了对人类福利和社会经济可持续性的不利影响(McCrystall et and an an an an an an an an and and and and and and and。否则,气候变化也会逐渐危害陆地和水生物种之间的生物多样性。通过审查519个观察性研究,Maxwell等。(2019)发现,有57%的研究群体(包括两栖动物,鸟类,鱼类,无脊椎动物,哺乳动物,爬行动物和植物)对极端气候事件的生态反应表现出负面的生态反应,超过100例人口下降了25%以上,31例面临局部扩张。Meanwhile, mass mortality events of aquatic species induced by climate change have frequently been reported in recent years, such as the emperor penguins in Antarctica (Fretwell et al., 2023), the coral reefs in the Caribbean (Chow, 2023), gray whales in the West Bank (Baumhardt, 2023), and dolphins in the Brazilian Amazon rainforest (The Associated出版社,2023年)。
摘要:区块链是一种新兴技术,在很大程度上依赖哈希功能的效率和性能。最初开发的旨在满足特定的加密需求,这些功能现在已成为开发人员和协议程序员的司空见惯。自2004年以来,对常规哈希算法的攻击急剧增加。在本文中,我们仔细检查了众所周知的哈希算法中报告的安全缺陷,并确定了容易被利用的安全缺陷。哈希功能被认为是断开的,我们的分析会涉足加密漏洞的不断变化的景观,突显了2004年后攻击的急剧上升。By analyzing reported security flaws we categorize and analyze attacks, providing a nuanced understanding of weaknesses in different hashing algorithms Furthermore, we provide a comprehensive summary of a it deals with hash algorithms that have been compromised, providing a valuable resource for blockchain developers This collection not only supports blockchain selection, design, and implementation but also forms the basis for future research to increase the security of hash在区块链和其他新兴技术的背景下实施。
欧洲有超过400万人每年获得与医疗相关的感染(HCAI),其中大约37,000人死于感染的直接结果。The death toll from antimicrobial resistance (AMR) exceeds the number of people who die each year in road traffic accidents: in 2021 there were an estimated 2,213 AMR-associated deaths and 1,329 reported road fatalities in England ( ESPAUR report 2021 to 2022 ; Reported road casualties Great Britain, annual report: 2021 ).抗菌使用(AMU)是AMR的关键驱动力;了解使用的适应症,剂量以及遵守指南是减少抗生素消耗的关键。HCAI和AMU的监视是预防感染和抗菌管理的重要组成部分。 它通过计划和实施更有效的,基于证据的干预措施,政策,监视和策略来推动关键行动。 但是,目前在英格兰的所有住院环境中都没有可用的HCAI和AMU(强制性报告除外)可相当的数据,如果NHS Trusts或独立的提供者的HCAI率或AMU有任何变化,则很难量化总体上(MRSSA,MSSA,MSSA,GRAM-NEGATITY BACTERITY和CLOSIONIONCONIOS acTerio of ATRECTIONICE andio anditio)。 患病率调查在医院的任何一点(或期间)的比例和AMU的比例和类型的比例和类型的数据中非常有用,并可以更好地理解HCAI和社区次级感染(CAI)的负担,并用抗生素和AMU治疗。 表1中提供了上一个点患病率调查的结果。 表1。HCAI和AMU的监视是预防感染和抗菌管理的重要组成部分。它通过计划和实施更有效的,基于证据的干预措施,政策,监视和策略来推动关键行动。但是,目前在英格兰的所有住院环境中都没有可用的HCAI和AMU(强制性报告除外)可相当的数据,如果NHS Trusts或独立的提供者的HCAI率或AMU有任何变化,则很难量化总体上(MRSSA,MSSA,MSSA,GRAM-NEGATITY BACTERITY和CLOSIONIONCONIOS acTerio of ATRECTIONICE andio anditio)。患病率调查在医院的任何一点(或期间)的比例和AMU的比例和类型的比例和类型的数据中非常有用,并可以更好地理解HCAI和社区次级感染(CAI)的负担,并用抗生素和AMU治疗。表1中提供了上一个点患病率调查的结果。表1。这一点患病率调查将是HCAI和第三次全国性AMU调查的全国性观点。上一个点流行率调查的结果
可以与级联反应中的酶结合起来,以实现广泛的有趣转换[7 E 9]。For instance, Poelarends and coworkers reported a one- pot cascade synthesis of enantioenriched g -amino- butyric acids (GABA) by combining enantioselective Michael addition catalyzed by an engineered 4- oxalocrotonate tautomerase, aldehyde oxidation cata- lyzed by aldehyde dehydrogenase, and nitro reduction enabled by基于镍的化学还原(图1 A)[7]。这种步进经济学方法提供了高总产率(产量高达70%)和出色的对映选择性(高达98%EE)的药物活性GABA类似物。Greaney,Turner和同事开发了由单胺氧化酶N(MAO-N)组成的兼容的跨脱水耦合过程 - 催化有氧氧化和金介导的C E C键形成,以实现N-Aryl tetrahydroisoquinelines的一盘烷基化[8]。本报告展示了用于C E C键形成的功能组转化的生物催化与过渡金属催化之间的兼容性。
肝细胞癌(HCC)是一种致命的恶性肿瘤,缺乏有效治疗,尤其是在晚期疾病。,即使免疫检查点抑制剂(ICI)在HCC的治疗,耐用和理想的临床益处方面取得了长足的进步,但对于大多数HCC患者仍无法实现。因此,仍然需要新颖的和重固定的ICI组合疗法来增强治疗效果。The latest study has reported that the carbonic anhydrase XII inhibitor (CAXIIi), a novel type of anticancer drug, can modify the tumor immunosuppression microenvironment by affecting hypoxic/acidic metabolism and alter the functions of monocytes and macrophages by regulating the expression of C-C motif chemokine ligand 8 (CCL8).这些观察结果闪耀着改善程序性细胞死亡蛋白1(PD-1)/程序性细胞死亡配体1(PD-L1)免疫疗法,并结合卡克西IIS。这种迷你审查旨在激发热情探索卡西iis的潜在应用与HCC免疫疗法结合使用。
As published online in Theranostics, the preliminary analyzes of LncRNA & mRNA& miRNA were performed by Novogene, reported that lncRnA, mRNA and small RNA transcriptomes provide insights into the protec- tive effects of rSj16 on DSS-induced colitis, which is mainly mediated by PPAR-α signaling pathway inhibition.rsj16减弱了DSS诱导的结肠炎小鼠的临床活性,促炎性细胞因子的产生,上调上调的免疫调节细胞因子产生以及DSS诱导的结肠炎小鼠的Treg百分比增加。此外,用RSJ16处理的DSS诱导的结肠炎小鼠在结肠中表现出特定基因的表达水平的变化,并显示了过氧化物酶体增殖物激活受体α(PPAR-α)信号传导途径的关键作用。pPAR-α激活减少了DSS诱导的结肠炎小鼠RSJ16的治疗方法,表明PPAR-α信号通路在DSS诱导的结肠炎开发中起着至关重要的作用。该研究的发现RSJ16可能有助于RSJ16可以作为Thepeatiutiut te Trapeiutiation ppar-α有用。
摘要:2- µm波段已被认为是下一代低损失,低延迟光学通信的潜在电信窗口。热光(TO)调节器和开关,它们是大规模集成光子电路中必不可少的构件,其性能直接影响芯片光子系统的能耗和重新配置时间。基于2 µm波带的金属加热器调制之前,响应时间缓慢和高功耗。在本文中,展示了在2- µm波段的工作,高性能的热马赫德干涉仪和环谐振器调节器。By embedding a doped silicon (p ++ -p-p ++ ) junction into the waveguide, our devices reached a record modulation efficiency of 0.17 nm/mW for Mach–Zehnder interferometer based modulator and its rise/fall time was 3.49 µ s/3.46 µ s which has been the fastest response time reported in a 2- µ m-waveband TO devices so far.对于基于环的谐振器调节器,在2- µm的设备中,在2- µm中的最低Pπ功率为3.33 mW。
旨在更好地了解这些稳健键的键合和反应性的研究已成为追求核废料修复的中心研究点。已经报道了在铀酰疾病中官能化U = O键的几种方法,最流行的是通过与甲硅烷基离子的反应性使用还原性裂解(图1)。4,5 One of the first reported examples detailing activation of the uranyl(VI) dioxo moiety was detailed by Ephritikhine in 2006, in upon the addition of excess silylating reagent (Me 3 SiX, where X = Cl, Br, or I), UO 2 I 2 (THF) 3 or UO 2 (OTf) 2 are converted to a tetravalent uranium halide salt, UX 4 (MECN)4。3这种反应性利用了强Si -O键形成的热力学驱动力,从而通过相应的卤化物的氧化来促进铀氧键的还原性裂解。6后来,爱与同事报告了通过还原性的硅烷基硅烷二烯化的键键激活的机理的进一步见解。在这项工作中,铀酰的协调
上下文:已证明视觉生物反馈可以促进青少年运动员的抗伤害运动。视觉生物反馈通常被认为是通过刺激运动员将注意力集中在外部(运动结果上)来促进隐式学习的。但是,如果运动员使用视觉信息有意识地指导运动执行(通过内部焦点),则生物反馈也可能会引起明确的学习。Objective: To determine the degree to which athletes reported statements indicating implicit or explicit motor learning after engaging in a visual biofeedback intervention.设计:前瞻性队列研究。设置:三维运动分析实验室。患者或其他参与者:二十五名青少年女足球运动员(¼15.06 1.5岁,身高¼165.76 5.9厘米,弥撒,¼59.46 10.6 kg)。干预措施:标准的6周神经肌肉训练干预措施(三个90分钟/周),并增加了视觉生物反馈会话(2个会话/周)。在生物反馈训练中,参与者在与视觉矩形刺激互动时进行了蹲下和跳跃运动,该刺激绘制了与伤害风险相关的关键参数。