MOS

睑闭合不全
  • 文章类型: Journal Article
    意外的石油泄漏到海洋中会导致石油作为海洋雪的一部分向下运输和沉降到海底,正如在2010年墨西哥湾深水地平线事件中看到的那样。北极和亚北极地区可能有利于导致底栖石油沉积的条件,引发了对底栖群落潜在影响的质疑。这项研究调查了受石油污染的海洋积雪对蓝色贻贝的影响(Mytilussp。).我们将贻贝暴露于1)受石油污染的海洋雪(MOS处理)四天,或2)油和未聚集的食物颗粒的化学增强的水容纳部分(CEWAF)(CEWAF处理)。两种油处理接受相同标称浓度的油和食物。包括两个对照:1)清洁海水加上未聚集的食物(无agg控制)和2)清洁海水加上海洋雪(海洋雪控制)。曝光后,贻贝被允许在清洁下恢复十天,运行的海水。样本是在暴露期之前和之后采集的,并且在以下终点的回收阶段之后:海水和MOS之间的油化合物的分布(分配),在海水和贻贝组织之间;DNA损伤(通过彗星测定法评估);清除率;和条件指数[组织干重(g)除以壳长(mm)]。在海水和MOS之间的油化合物分配中发现了一些可辨别的模式。然而,这些模式并没有转化为两种油处理之间的油化合物分配到贻贝组织中的任何显着差异。DNA损伤不超过背景水平(10%或更低的尾部DNA;在健康人群中,活细胞)在任何采样时间点,但是在恢复期后,与MOS-T贻贝相比,CEWAF-T中的DNA损伤明显更高。曝光后,CEWAF治疗和无agg对照之间的清除率出现显着差异,但不是在MOS处理和海洋降雪控制之间。暴露时间后,除CEWAF处理外,所有贻贝的状况指数均增加。一起,这些结果表明,聚集体可以缓和油暴露对蓝贻贝的影响,可能通过提供更好的,营养比未聚集的食物颗粒更浓缩。
    Accidental oil spills into the ocean can lead to downward transport and settling of oil onto the seafloor as part of marine snow, as seen during the Deepwater Horizon incident in 2010 in the Gulf of Mexico. The arctic and subarctic regions may favor conditions leading to this benthic oil deposition, prompting questions about the potential impacts on benthic communities. This study investigated the effects of oil-contaminated marine snow uptake on the blue mussel (Mytilus sp.). We exposed mussels for four days to 1) oil-contaminated marine snow (MOS treatment), or to 2) chemically-enhanced water-accommodated fraction (CEWAF) of oil plus unaggregated food particles (CEWAF treatment). Both oil treatments received the same nominal concentration of oil and food. Two controls were included: 1) Clean seawater plus unaggregated food (agg-free control) and 2) clean seawater plus marine snow (marine snow control). After the exposure, mussels were allowed to recover for ten days under clean, running seawater. Samples were taken right before and after the exposure period, and after the recovery phase for the following endpoints: distribution (partitioning) of oil compounds between seawater and MOS, and between seawater and mussel tissue; DNA damage (assessed via the comet assay); clearance rate; and condition index [tissue dry weight (g) divided by shell length (mm)]. Some discernable patterns were found in the partitioning of oil compounds between seawater and MOS. However, these patterns did not translate to any significant differences in the partitioning of oil compounds into mussel tissue between the two oil treatments. DNA damage did not exceed background levels (10% tail DNA or less; to be expected in healthy, viable cells) at any sampling time point, but significantly higher DNA damage was observed in CEWAF-T compared to MOS-T mussels after the recovery phase. After the exposure, a significant difference emerged in the clearance rate between the CEWAF treatment and the agg-free control, but not between the MOS treatment and the marine snow control. All mussels except those from the CEWAF treatment exhibited an increased condition index after the exposure time. Together, these results suggest that aggregates could moderate the effects of oil exposure on blue mussels, possibly by providing better, more concentrated nutrition than unaggregated food particles.
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  • 文章类型: Journal Article
    对羟基苯甲酸甲酯(MeP),对羟基苯甲酸乙酯(EtP),对羟基苯甲酸丙酯(PrP),对羟基苯甲酸丁酯(BuP)是化妆品中使用最广泛的防腐剂之一,毒品,和食物。由于在其制剂中过度使用含有对羟基苯甲酸酯的产品,这些化合物与毒性作用有关。对羟基苯甲酸酯的毒性可能与内分泌干扰有关,由于它们能够模仿雌二醇的作用。在本文中,一个简单的,可持续,健壮,并开发了创新的分散液-液微萃取(DLLME)技术,并将其用于从身体乳膏样品中提取这些异种生物,旨在计算安全边际(MoS)以评估暴露风险。经过验证的方法具有合适的线性(r>0.99),检测下限(范围从0.01到0.04%w/w),和令人满意的精度和准确度(范围从4.33到10.47,和从-14.25到13.85,分别)。根据欧洲法规,十份分析样品中有7份的对羟基苯甲酸酯含量在可接受的浓度范围内。获得的PrP(37.58)MoS值表明其安全性降低,这表明PrP可能显著有助于使用个人护理产品导致的全身暴露。
    Methylparaben (MeP), ethylparaben (EtP), propylparaben (PrP), and butylparaben (BuP) are among the most widely used preservatives in cosmetics, drugs, and foods. These compounds have been associated with toxic effects due to the overuse of products with parabens in their formulation. The toxicity of parabens may be correlated to endocrine disruption, owing to their ability to mimic the actions of estradiol. In this paper, a simple, sustainable, robust, and innovative dispersive liquid-liquid microextraction (DLLME) technique was developed and employed to extract these xenobiotics from body cream samples, aiming to calculate the margin of safety (MoS) to assess the risk of exposure. The validated method presented suitable linearity (r > 0.99), lower limits of detection (ranging from 0.01 to 0.04 % w/w), and satisfactory precision and accuracy (ranging from 4.33 to 10.47, and from -14.25 to 13.85, respectively). Seven of the ten analysed samples presented paraben contents within the acceptable concentration according to European legislation. The MoS value obtained for PrP (37.58) suggested its reduced safety, indicating that PrP may significantly contribute to systemic exposure resulting from the use of personal care products.
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  • 文章类型: Journal Article
    公认的生物活性化合物,açaí已经成为一种功能性食品,但是它的纸浆产量低,种子是主要的废物。这项研究调查了açaí种子(EuterpeoleraceaMart。)通过酶水解生产甘露寡糖(MOS)。使用响应面法(RSM),该研究优化了MOS提取,同时最大程度地减少了甘露糖的产生并减少了处理时间,实现约10g/L的MOS产量,在类似调查范围内的值。RSM二次模型建立了MOS产量(M2-M5)与酶水解条件之间的相关性,R2值范围从0.6136到0.9031。这些模型用于强调MOS性能(M2-M5),同时减少甘露糖的产生,这也通过减少时间来提高盈利能力。实验验证与模型预测一致,突出40°C附近的最佳条件,中间酶负载,和碱性pH,其在加速的处理时间范围内有效地促进甘露糖上的MOS生成。实验结果的预测误差范围<9%,模型的有效性是可以接受的.这项研究有助于提高对açaí种子的酶促水解的理解,这是朝着可持续利用资源迈出的一步,重点是过程工程方面。
    Recognized for its bioactive compounds, açaí has become a functional food, but it has a low pulp yield, and the seeds are the main waste. This study investigates the potential of açaí seeds (Euterpe oleracea Mart.) to produce mannooligosaccharides (MOS) through enzymatic hydrolysis. Using response surface methodology (RSM), the research optimizes MOS extraction while minimizing mannose production and reducing processing time, achieving MOS production of about 10 g/L, a value within the range of similar investigations. The RSM quadratic models establish correlations between MOS production (M2-M5) and enzymatic hydrolysis conditions, with R2 values ranging from 0.6136 to 0.9031. These models are used to emphasize MOS performance (M2-M5) while reducing mannose production, which also promotes profitability by reducing time. Experimental validation agrees with model predictions, highlighting optimal conditions near 40 °C, intermediate enzyme loading, and basic pH that effectively promotes MOS generation on mannose within an accelerated processing time frame. With predictions of experimental results within a margin of error of < 9%, the validity of the models was acceptable. This research contributes to the advancement of the understanding of the enzymatic hydrolysis of açaí seeds, which is a step toward the sustainable use of resources with a focus on process engineering aspects.
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  • 文章类型: Journal Article
    自从现代计算出现以来,研究人员一直在努力使人机界面(HCI)尽可能无缝。各方面都取得了进展,例如,桌面隐喻(界面设计)和自然语言处理(输入)。最近受到关注的一个领域是语音激活及其推论,计算机生成的语音。尽管经过几十年的研究和开发,大多数计算机生成的声音仍然很容易识别为非人类。语音中的韵律有两个主要成分-语调和节奏-两者通常都缺乏计算机生成的声音。这项研究旨在通过结合人类语音的旋律和韵律元素来增强计算机生成的文本到语音算法。本研究探索了一种使用机器学习添加韵律的新方法,特别是LSTM神经网络,在录制或生成的语音中添加副语言元素。目的是增加计算机生成的文本到语音算法的真实性,为了加强电子阅读应用,并改善了需要人工帮助的人说话的人工声音。能够通过口头可听通知传达含义的计算机也将改善人机交互。使用这种算法的应用可以包括改进用于电话的高清晰度音频编解码器,更新旧录音,降低计算机使用的障碍。本研究通过实验室实验将算法分析和推广到模块化系统中,以优化边缘情况下的组合和性能,从而部署了用于数字语音改进的原型模块化平台。结果令人鼓舞,基于LSTM的编码器能够产生真实的语音。进一步的工作将涉及优化算法并将其性能与其他方法进行比较。
    Since the advent of modern computing, researchers have striven to make the human-computer interface (HCI) as seamless as possible. Progress has been made on various fronts, e.g., the desktop metaphor (interface design) and natural language processing (input). One area receiving attention recently is voice activation and its corollary, computer-generated speech. Despite decades of research and development, most computer-generated voices remain easily identifiable as non-human. Prosody in speech has two primary components-intonation and rhythm-both often lacking in computer-generated voices. This research aims to enhance computer-generated text-to-speech algorithms by incorporating melodic and prosodic elements of human speech. This study explores a novel approach to add prosody by using machine learning, specifically an LSTM neural network, to add paralinguistic elements to a recorded or generated voice. The aim is to increase the realism of computer-generated text-to-speech algorithms, to enhance electronic reading applications, and improved artificial voices for those in need of artificial assistance to speak. A computer that is able to also convey meaning with a spoken audible announcement will also improve human-to-computer interactions. Applications for the use of such an algorithm may include improving high-definition audio codecs for telephony, renewing old recordings, and lowering barriers to the utilization of computing. This research deployed a prototype modular platform for digital speech improvement by analyzing and generalizing algorithms into a modular system through laboratory experiments to optimize combinations and performance in edge cases. The results were encouraging, with the LSTM-based encoder able to produce realistic speech. Further work will involve optimizing the algorithm and comparing its performance against other approaches.
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  • 文章类型: Journal Article
    益生菌微生物在预防和治疗细菌感染方面是抗生素的有希望的替代品。在益生菌组中,乳酸菌(LAB)因其健康益处和被监管机构认为是安全的而脱颖而出。然而,这些微生物对各种环境条件敏感,包括胃的酸性环境。面对这些障碍,这项工作旨在促进LAB在藻酸盐和益生元的复合基质中的共生微囊化,以提高其存活率并改善其在胃肠道运输过程中的益生菌活性。我们评估了菊粉的效果,低聚果糖(FOS)和甘露寡糖(MOS)为益生源对戊糖片球菌LBM34菌株生长的影响,发现MOS有利于LAB的生长和微囊化细胞活力的维持。共生微粒是使用喷雾干燥技术生产的,平均尺寸为10μm,光滑的表面,和根据FTIR和材料的热分析有利于活细胞稳定的组合物。最好的配方是由1%的藻酸盐,10%MOS和1%M10(%w/v),在碱性和酸性条件下,益生菌菌株的存活率显着提高。因此,这种工业上可扩展的共生LAB微囊化方法可以促进它们在宿主内的生长和定殖。这项努力旨在帮助减少对抗生素的依赖,减轻新的人畜共患疾病的出现。这对公共卫生构成了重大挑战。
    Probiotic microorganisms are a promising alternative to antibiotics in preventing and treating bacterial infections. Within the probiotic group, the lactic acid bacteria (LAB)stand out for their health benefits and for being recognized as safe by regulatory agencies. However, these microorganisms are sensitive to various environmental conditions, including the acidic environment of the stomach. Faced with these obstacles, this work aimed to promote the symbiotic microencapsulation of LAB in a composite matrix of alginate and prebiotics to enhance their survival and improve their probiotic activity during gastrointestinal transit. We evaluated the effect of inulin, fructo-oligosaccharides (FOS) and mannan-oligosaccharides (MOS) as prebiotic sources on the growth of Pediococcus pentosaceus LBM34 strain, finding that MOS favored LAB growth and maintenance of microencapsulated cell viability. The symbiotic microparticles were produced using the spray-drying technique with an average size of 10 μm, a smooth surface, and a composition that favored the stabilization of live cells according to the FTIR and the thermal analysis of the material. The best formulation was composed of 1 % of alginate, 10 % MOS and 1 % M10 (% w/v), which presented notable increases in the survival rates of the probiotic strain in both alkaline and acidic conditions. Therefore, this industrially scalable approach to symbiotic LAB microencapsulation can facilitate their growth and colonization within the host. This effort aims to contribute to reducing antibiotic reliance and mitigating the emergence of new zoonotic diseases, which pose significant challenges to public health.
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  • 文章类型: Journal Article
    当前的研究探讨了饮酒习惯,在性活动之前喜欢饮酒,以及美国年轻成年男性现役军人中与酒精相关的性行为。
    有害酒精的使用是美国军人中的一个重大问题。尽管饮酒和性侵犯之间的关联在平民样本中有很好的记录,关于士兵中饮酒和性活动的交集知之甚少。
    使用描述性统计数据来总结饮酒习惯,在性活动之前喜欢饮酒,与酒精有关的性行为.
    从美国东南部的一个大型军事哨所招募了338名18至24岁的现役男性军人。使用自我报告调查对建筑进行评估。
    参与者报告饮酒,平均而言,上个月的5.6倍。据报道,每次饮酒平均饮酒量为7.8杯。参与者报告说,在过去30天内,他们平均饮酒2.9次。平均而言,服务人员报告说,在性活动前优先喝1.3杯。此外,75.2%的参与者更愿意在性生活时保持清醒,82.1%的人更喜欢与清醒的伴侣进行性活动。大约14%的样本报告使用酒精来提高他们做爱的机会。
    这些发现突出了士兵中酒精的高使用率。尽管如此,年轻的成年男性士兵报告说,他们在清醒时倾向于性行为。了解酒精使用和性活动的共同发生有可能为服务人员制定综合酒精和性侵犯预防计划提供信息。
    UNASSIGNED: The current study explores drinking habits, preferences for alcohol use before sexual activity, and alcohol-related sexual behavior among young adult male active duty service members in the United States.
    UNASSIGNED: Hazardous alcohol use is a significant problem among United States military service members. Whereas the association between alcohol use and sexual assault is well documented in civilian samples, less is known regarding the intersection of alcohol use and sexual activity among soldiers.
    UNASSIGNED: Descriptive statistics were utilized to summarize drinking habits, preferences for alcohol use before sexual activity, and alcohol-related sexual behavior.
    UNASSIGNED: A sample of 338 active-duty male service members between the ages of 18 and 24 were recruited from a large military post in the Southeastern United States. Constructs were assessed using self-report surveys.
    UNASSIGNED: Participants reported consuming alcohol, on average, 5.6 times over the prior month. Average alcohol consumption was reported to be 7.8 beverages per drinking occasion. Participants reported engaging in heavy drinking an average of 2.9 times over the past 30 days. On average, service members reported a preference for 1.3 drinks before sexual activity. Furthermore, 75.2% of participants preferred to be sober during sex, and 82.1% preferred to engage in sexual activity with a sober partner. Approximately 14% of the sample reported using alcohol to improve their chances of having sex.
    UNASSIGNED: These findings highlight high rates of alcohol use among soldiers. Nonetheless, young adult male soldiers report a preference for sexual activity while sober. Understanding the co-occurrence of alcohol use and sexual activity has the potential to inform the development of integrated alcohol and sexual assault prevention programs for service members.
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  • 文章类型: Journal Article
    在线会议应用程序中的语音质量经常受到各种因素的影响,例如背景噪音,混响,丢包和网络抖动。在真实场景中,不可能获得干净的参考信号来评估会议语音的质量。因此,一种有效的非侵入式语音质量评估(NISQA)方法是必要的。在本文中,我们提出了一种基于ResNet和BiLSTM的NISQA网络框架。ResNet用于提取局部特征,而BiLSTM用于集成具有长期时间依赖性和顺序特征的代表性特征。考虑到ResNet在应用于NISQA任务时可能会导致上下文信息的丢失,我们提出了ResNet的变体,可以保留会议语音的时间序列信息。实验结果表明,该方法与干净的平均意见得分具有较高的相关性,嘈杂和处理的语音。
    Speech quality is frequently affected by a variety factors in online conferencing applications, such as background noise, reverberation, packet loss and network jitter. In real scenarios, it is impossible to obtain a clean reference signal for evaluating the quality of the conferencing speech. Therefore, an effective non-intrusive speech quality assessment (NISQA) method is necessary. In this paper, we propose a new network framework for NISQA based on ResNet and BiLSTM. ResNet is utilized to extract local features, while BiLSTM is used to integrate representative features with long-term time dependencies and sequential characteristics. Considering that ResNet may result in the loss of context information when applied to the NISQA task, we propose a variant of ResNet which can preserve the time series information of the conferencing speech. The experimental results demonstrate that the proposed method has a high correlation with the mean opinion score of clean, noisy and processed speech.
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  • 文章类型: Journal Article
    This work demonstrated the optimization of HiPIMS reactive magnetron sputtering of hafnium oxynitride (HfOxNy) thin films. During the optimization procedure, employing Taguchi orthogonal tables, the parameters of examined dielectric films were explored, utilizing optical methods (spectroscopic ellipsometry and refractometry), electrical characterization (C-V, I-V measurements of MOS structures), and structural investigation (AFM, XRD, XPS). The thermal stability of fabricated HfOxNy layers, up to 800 °C, was also investigated. The presented results demonstrated the correctness of the optimization methodology. The results also demonstrated the significant stability of hafnia-based layers at up to 800 °C. No electrical parameters or surface morphology deteriorations were demonstrated. The structural analysis revealed comparable electrical properties and significantly greater immunity to high-temperature treatment in HfOxNy layers formed using HiPIMS, as compared to those formed using the standard pulsed magnetron sputtering technique. The results presented in this study confirmed that the investigated hafnium oxynitride films, fabricated through the HiPIMS process, could potentially be used as a thermally-stable gate dielectric in self-aligned MOS structures and devices.
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  • 文章类型: Journal Article
    需要实现数字气体传感技术,即,一种感知和传输气体数字媒体的技术,被认为是极具挑战性的。这一挑战促使作者专注于互补金属氧化物半导体硅绝缘体微机电系统(CMOS-SOI-MEMS)技术,结果是一个新的类似pellistor的传感器,被称为GMOS,集成信号处理。在这项研究中,我们描述了这种传感器用于选择性检测气体混合物的性能。这项研究的新颖的关键思想是:(i)使用GMOS进行气体传感;(ii)应用卡尔曼滤波器来提高信噪比;(iii)通过微小边缘方法添加人工智能(AI)。
    The need to achieve digital gas sensing technology, namely, a technology to sense and transmit gas-enabled digital media, has been recognized as highly challenging. This challenge has motivated the authors to focus on complementary metal oxide semiconductor silicon on insulator micro electro-mechanical system (CMOS-SOI-MEMS) technologies, and the result is a new pellistor-like sensor, dubbed GMOS, with integrated signal processing. In this study, we describe the performance of such sensors for the selective detection of mixtures of gases. The novel key ideas of this study are: (i) the use of the GMOS for gas sensing; (ii) applying the Kalman filter to improve the signal-to-noise ratio; (iii) adding artificial intelligence (AI) with tiny edge approach.
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  • 文章类型: Journal Article
    莫洛尼肉瘤癌基因(MOS)编码蛋白质丝氨酸/苏氨酸激酶,并且MOS在经历减数分裂成熟的卵母细胞中高水平表达。MOS/MAPK途径通常是在减数分裂期间维持微管和染色质处于变相状态所需的。为了确定由于大量极体卵母细胞导致的女性不育患者的致病基因,对患者和现有家庭成员进行全外显子组测序.我们在MOS中鉴定了一个新的纯合错义突变c.591T>G。生物信息学分析表明该突变是有害的。这些发现表明,MOS突变导致患者的卵母细胞具有较大的极体和不良的胚胎发育。MOS变体可能通过MAPK/WAVE2/Arp2/3/肌动蛋白信号通路调节卵母细胞不对称分裂。这将有助于了解MOS在人类早期生殖过程中的综合作用,并为未来的遗传咨询提供遗传标记,以进行更个性化的治疗。
    The Moloney sarcoma oncogene (MOS) encodes a protein serine/threonine kinase and MOS is expressed at high levels in oocytes undergoing meiotic maturation. The MOS/MAPK pathway is normally required for the maintenance of microtubules and chromatin in a metaphasic state during the meiotic divisions. To determine the pathogenic genes in a female infertile patient due to large polar body oocytes, whole-exome sequencing was performed on the patient and available family members. We identified a novel homozygous missense mutation c.591T > G in MOS. Bioinformatics analysis showed that the mutation is harmful. These findings suggest that MOS mutation results in oocytes with a large polar body and poor embryonic development in patients. The MOS variant may regulate oocyte asymmetric division by MAPK/WAVE2/Arp2/3/actin signaling pathway. This will help to understand the comprehensive role of MOS in early human reproductive process and provide genetic markers for future genetic counseling for more individualized treatments.
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