fEMG

fEMG
  • 文章类型: Journal Article
    目标:尽管有令人震惊的证据表明对妇女的性暴力,人们对男性对强奸的情绪反应以及这些可能如何参与性暴力动态知之甚少。因此,我们的目的是捕捉如何在情感上评估强奸场景。方法:本研究评估了男性(N=30)的自我报告和心理生理情绪反应(面部肌电图,皮肤电活动)到强奸现场,并将其与他们对描绘非性暴力和非暴力男女互动的刺激的反应进行了对比。男人的情绪反应和他们对强奸神话的认可之间的联系,个性,还检查了性特征。结果:研究结果表明,强奸现场导致更高的负面影响,主观上和通过增加的面部肌电图(瓦楞纸板活动)索引,比其他两个刺激。此外,神经质的人格特质,较低的宜人性,较低的意识,精神病倾向,以及较低的性抑制倾向,都与强奸的主观性唤起有关。结论:研究结果增加了有关推定情感过程的文献,这些情感过程是对妇女的性暴力评估的基础。
    Objective: Despite alarming evidence on sexual violence against women, little is known about men\'s emotional responses to rape and how these may be involved in sexual violence dynamics. Accordingly, our aim was to capture how rape scenarios are emotionally appraised. Methods: The current study evaluated men\'s (N = 30) self-reported and psychophysiological emotional responses (facial EMG, electrodermal activity) to a rape scene, and contrasted it with their responses to stimuli depicting nonsexual violence and nonviolent male-female interactions. The associations between men\'s emotional responses and their endorsement of rape myths, personality, and sexual traits were also examined. Results: Findings revealed that the rape scene resulted in higher negative affect, both subjectively and indexed by increased facial EMG (corrugator activity), than the other two stimuli. Additionally, personality traits of neuroticism, lower agreeableness, lower consciousness, psychopathic tendencies, as well as lower sexual inhibition proneness, were all associated with higher subjective sexual arousal toward rape. Conclusions: Findings add to the literature on the putative emotional processes underpinning the appraisal of sexual violence against women.
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  • 文章类型: Randomized Controlled Trial
    背景:我们旨在开发一种预测患有先天性肾脏和泌尿道异常(CAKUT)的儿童HNF1B突变的工具。
    方法:收集并回顾性分析了234名已知HNF1B突变状态的儿童和年轻成人的临床和实验室数据。将所有受试者随机分为训练集(70%)和验证集(30%)。构建随机森林模型来预测HNF1B突变。递归特征消除算法用于模型的特征选择,并利用接受者工作特性曲线统计来验证其预测效果。
    结果:共分析213例患者,包括HNF1B阳性(mut+,n=109)和HNF1B阴性(mut-,n=104)受试者。大多数患者患有轻度慢性肾病。各组肾脏表型相似,但mut+组双侧肾脏异常更常见。低镁血症和高尿是mut+患者中最常见的异常,并且对HNF1B具有高度选择性。与年龄无关的临界值0.7mmol/l相比,基于年龄适当标准的低镁血症具有更好的判别值。胰腺异常几乎只在mut+患者中发现。没有受试者患有低钾血症;HNF1B队列中的平均血清钾水平较低。上述,为模型选择了判别参数,表现出良好的性能(曲线下面积:0.85;灵敏度为93.67%,特异性为73.57%)。开发了相应的计算器以供使用和验证。
    结论:这项研究开发了一种简单的工具来预测儿童和青少年CAKUT中的HNF1B突变。
    BACKGROUND: We aimed to develop a tool for predicting HNF1B mutations in children with congenital abnormalities of the kidneys and urinary tract (CAKUT).
    METHODS: The clinical and laboratory data from 234 children and young adults with known HNF1B mutation status were collected and analyzed retrospectively. All subjects were randomly divided into a training (70%) and a validation set (30%). A random forest model was constructed to predict HNF1B mutations. The recursive feature elimination algorithm was used for feature selection for the model, and receiver operating characteristic curve statistics was used to verify its predictive effect.
    RESULTS: A total of 213 patients were analyzed, including HNF1B-positive (mut + , n = 109) and HNF1B-negative (mut - , n = 104) subjects. The majority of patients had mild chronic kidney disease. Kidney phenotype was similar between groups, but bilateral kidney anomalies were more frequent in the mut + group. Hypomagnesemia and hypermagnesuria were the most common abnormalities in mut + patients and were highly selective of HNF1B. Hypomagnesemia based on age-appropriate norms had a better discriminatory value than the age-independent cutoff of 0.7 mmol/l. Pancreatic anomalies were almost exclusively found in mut + patients. No subjects had hypokalemia; the mean serum potassium level was lower in the HNF1B cohort. The abovementioned, discriminative parameters were selected for the model, which showed a good performance (area under the curve: 0.85; sensitivity of 93.67%, specificity of 73.57%). A corresponding calculator was developed for use and validation.
    CONCLUSIONS: This study developed a simple tool for predicting HNF1B mutations in children and young adults with CAKUT.
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  • 文章类型: Journal Article
    聚(l-乳酸)(PLLA)常用于生物可吸收医疗植入物,但它遭受缓慢的降解速率和快速下降的机械性能的骨科应用。为了解决这个缺点,最近的研究探索了Mg作为PLLA填料的用途,导致与纯PLLA相比具有改善的降解速率和细胞相容性的复合材料。在这项研究中,提出了FeMg粉末颗粒作为PLLA的填料,以研究PLLA/FeMg复合材料用于生物可吸收植入物的潜力。PLLA的圆柱体试样,PLLA/Fe,PLLA/Mg和PLLA/FeMg是使用溶剂浇铸然后热成型制备的。微观结构,热行为,在模拟体液中的体外降解行为,研究了这些复合材料的力学性能和细胞相容性。结果表明,FeMg颗粒的存在可以防止复合材料力学性能的恶化,至少14天。一旦复合材料达到一定量的降解,降解速度比PLLA快。直接的细胞毒性实验表明,前成骨细胞MC3T3-E1细胞成功地粘附并在PLLA/FeMg表面上增殖。在Fe晶格中包含低百分比的Mg不仅加速了Fe的降解速率,而且还改善了其细胞相容性。提高降解率,机械性能,这种复合材料的骨传导特性使其成为临时骨科生物医学设备的有希望的选择。
    Poly(l-lactic) acid (PLLA) is commonly used in bioabsorbable medical implants, but it suffers from slow degradation rate and rapid decline in mechanical properties for orthopedic applications. To address this drawback, recent research has explored the use of Mg as a filler for PLLA, resulting in composites with improved degradation rate and cytocompatibility compared to neat PLLA. In this study, FeMg powder particles were proposed as fillers for PLLA to investigate the potential of PLLA/FeMg composites for bioabsorbable implants. Cylinder specimens of PLLA, PLLA/Fe, PLLA/Mg and PLLA/FeMg were prepared using solvent casting followed by thermo-molding. The microstructure, thermal behavior, in vitro degradation behavior in simulated body fluid, mechanical properties and cytocompatibility of these composites were examined. The results indicate that the presence of FeMg particles prevents the deterioration of the composite mechanical properties, at least up to 14 days. Once a certain amount of degradation of the composite is reached, the degradation is faster than that of PLLA. Direct cytotoxicity assays revealed that pre-osteoblast MC3T3-E1 cells successfully adhered to and proliferated on the PLLA/FeMg surface. The inclusion of a low percentage of Mg into the Fe lattice not only accelerated the degradation rate of Fe but also improved its cytocompatibility. The enhanced degradation rate, mechanical properties, and osteoconductive properties of this composite make it a promising option for temporary orthopedic biomedical devices.
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  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    人类避免努力行动的概念是心理学中最古老和最持久的概念之一。有影响力的努力理论认为,努力评估是根据成本-收益权衡做出的:只有当收益大于成本时,我们才倾向于投入脑力。虽然这些模型提供了一个有用的概念框架,努力评估的情感组成部分仍然知之甚少。这里,我们检查了情感反应的原始成分-积极和消极的效价,通过面部肌电图(fEMG)捕获-可用于更好地理解认知努力的评价。使用费力的算术任务,我们发现,被认为是负效价指数的fEMG活动1)跟踪认知努力的预期和努力,2)在存在高回报的情况下减弱。一起,这些结果表明,瓦楞机中的活动反映了努力决策过程中努力成本和奖励的整合。
    The notion that humans avoid effortful action is one of the oldest and most persistent in psychology. Influential theories of effort propose that effort valuations are made according to a cost-benefit trade-off: we tend to invest mental effort only when the benefits outweigh the costs. While these models provide a useful conceptual framework, the affective components of effort valuation remain poorly understood. Here, we examined whether primitive components of affective response-positive and negative valence, captured via facial electromyography (fEMG)-can be used to better understand valuations of cognitive effort. Using an effortful arithmetic task, we find that fEMG activity in the corrugator supercilii-thought to index negative valence-1) tracks the anticipation and exertion of cognitive effort and 2) is attenuated in the presence of high rewards. Together, these results suggest that activity in the corrugator reflects the integration of effort costs and rewards during effortful decision-making.
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  • 文章类型: Journal Article
    镁(Mg)是第二常见的细胞内阳离子,在正常酶功能和胰岛素分泌中起重要作用。多囊卵巢综合征(PCOS)是育龄妇女中最常见的内分泌疾病,通常与胰岛素抵抗有关。进行了两项系统评价和荟萃分析,以比较PCOS组和对照组之间的平均血清Mg水平。两项研究都在输入研究中发现了无法解释的异质性,这两个结论相互矛盾,而细胞外液(ECF)中存在约1%的全身Mg,血清Mg水平不能很好地代表Mg状态。第一次,我们调查了镁肾部分排泄(FEMg),并比较了PCOS和非PCOS对照女性的平均值.这项研究是在学术医学中心进行的横断面分析。根据鹿特丹标准,44名妇女被纳入PCOS组,50名非PCOS妇女被纳入对照组。24h尿Mg含量与FEMg,还有物理和代谢变量,已执行。主要结果测量是24小时尿Mg含量和FEMg。PCOS组和对照组24小时尿Mg含量和FEMg的平均值没有显着差异(分别为P=0.22和P=0.24)。此外,两组之间的血清Mg水平和Ca/Mg比值相似(分别为P=0.17和P=0.26)。我们的数据表明,PCOS组的Mg状态与非PCOS对照组相似,并且两者均未缺镁。为了进一步调查,我们建议使用FEMg来评估Mg状态,而不是血清Mg水平。考虑背景饮食的收集是有帮助的,并且希望用于未来的研究。
    Magnesium (Mg) is the second most frequent intracellular cation, having an important role in normal enzyme function and insulin secretion. Polycystic ovarian syndrome (PCOS) is the most prevalent endocrinopathy in women of reproductive age and often associated with insulin resistance. Two systematic reviews and meta-analyses have been conducted to compare mean serum Mg levels between PCOS and control groups. Both studies detected unexplained heterogeneity among input studies and the two conclusions contradict each other, while approximately 1% of total body Mg is present in extracellular fluid (ECF) and serum Mg level does not represent Mg status well. For the first time, we investigated magnesium renal fraction excretion (FEMg) and compared mean values between PCOS and non-PCOS control women. This study is a cross-sectional analysis conducted at an academic medical center. Forty-four women were included in the PCOS group based on the Rotterdam criteria and 50 non-PCOS women were included in the control group. Statistical analysis of the relationship between 24-h urinary Mg content and FEMg, and also physical and metabolic variables, was performed. Main outcome measurements are 24-h urinary Mg content and FEMg. Mean values of 24-h urinary Mg content and FEMg did not significantly differ between PCOS and control groups (P = 0.22 and P = 0.24, respectively). Also, serum Mg levels and Ca/Mg ratio were similar between the groups (P = 0.17 and P = 0.26, respectively). Our data suggested Mg status in the PCOS group was similar to the non-PCOS control group and both were not magnesium deficient. For further investigation, we recommend using FEMg for evaluating Mg status rather than serum Mg levels. Considering collection of background diet is helpful and desired for future studies.
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  • 文章类型: Journal Article
    在教育部门,在线教学和学习场景的使用迅速增加。使这些方案更有效是本研究的主要目的。尽管有很多因素会影响它,然而,主要的重点是找出教师的个性和他们对在线教学的喜好之间的关系。为了进行研究,已经提出了一个框架,该框架是教师的自我报告(情绪和个性)数据和生理反应的混合设计。在自我报告的数据中,和老师们一起,学习者对教师个性的感知也被认为是探索他们与在线教学的关系。最终结果表明,具有较高的同意水平的教师,尽责,与外向性和神经质特征相比,开放性人格特质更适合在线教学。为了验证自我报告的数据分析,记录教师的生理反应,以确保收集数据的真实性。它还确保了生理反应以及情绪也是人格识别的良好指标。
    In the education sector, there is a rapid increase in using online teaching and learning scenarios. Making these scenarios more effective is the main purpose of this study. Though there are a lot of factors that affect it, however, the primary focus is to find out the relationship between a teacher\'s personality and their liking for online teaching. To conduct the study, a framework has been proposed which is a mixed design of self-reported (emotions and personality) data and physiological responses of a teacher. In self-reported data, along with teachers, learners\' perception of a teacher\'s personality is also considered which explores their relationship with online teaching. The final results reveal that teachers with a high level of agreeableness, conscientiousness, and openness personality traits are more comfortable with online teaching as compared to extraversion and neuroticism traits. To validate the self-reported data analysis, the physiological responses of teachers were recorded that ensure the authenticity of the collected data. It also ensures that the physiological responses along with emotions are also good indicators of personality recognition.
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  • 文章类型: Journal Article
    未经证实:镁稳态紊乱在慢性肾脏病(CKD)患者中很常见,并与死亡率增加相关。肾脏是维持正常血清镁浓度的关键器官。为此,镁排泄分数(FEMg)随着肾功能下降而增加。尽管最近取得了进展,肾脏镁处理的激素调节尚不完全清楚。成纤维细胞生长因子23(FGF23)是一种磷性激素,与肾镁处理有关。然而,FGF23是否与CKD患者的肾镁处理相关,目前尚无报道.
    未经评估:血浆FGF23水平之间的关联,我们对198例接受肾活检的非透析CKD患者的血浆和尿镁浓度和FEMg进行了横断面研究.
    UNASSIGNED:FGF23与FEMg(皮尔逊相关系数=0.37,p<0.001)和尿镁(-0.14,p=0.04)显着相关,但不是等离子镁。FGF23和FEMg之间的关联在调整潜在的混杂因素后仍然显著,包括估计的肾小球滤过率(eGFR),甲状旁腺激素和25-羟维生素D。
    未经证实:我们报道,在一组非透析CKD患者中,血浆FGF23与肾镁处理指标独立相关。潜在的因果关系应该在未来的研究中进行调查。
    Disturbances in magnesium homeostasis are common in patients with chronic kidney disease (CKD) and are associated with increased mortality. The kidney is a key organ in maintaining normal serum magnesium concentrations. To this end, fractional excretion of magnesium (FEMg) increases as renal function declines. Despite recent progress, the hormonal regulation of renal magnesium handling is incompletely understood. Fibroblast Growth Factor 23 (FGF23) is a phosphaturic hormone that has been linked to renal magnesium handling. However, it has not yet been reported whether FGF23 is associated with renal magnesium handling in CKD patients.
    The associations between plasma FGF23 levels, plasma and urine magnesium concentrations and FEMg was investigated in a cross-sectional cohort of 198 non-dialysis CKD patients undergoing renal biopsy.
    FGF23 was significantly correlated with FEMg (Pearson\'s correlation coefficient = 0.37, p<0.001) and urinary magnesium (-0.14, p=0.04), but not with plasma magnesium. The association between FGF23 and FEMg remained significant after adjusting for potential confounders, including estimated glomerular filtration rate (eGFR), parathyroid hormone and 25-hydroxyvitamin D.
    We report that plasma FGF23 is independently associated with measures of renal magnesium handling in a cohort of non-dialysis CKD patients. A potential causal relationship should be investigated in future studies.
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  • 文章类型: Journal Article
    镁是人体中第四丰富的阳离子,对于生理过程至关重要,并且是危重病人通常会紊乱的电解质。这些镁失衡的紊乱可能被忽视,并导致不良的临床结果,既需要注意异常值,又需要准确的工具和方法来可靠地测量镁。目前,临床实验室采用各种方法测量血液和尿液中的镁。这篇综述旨在不仅从生理和病理生理角度阐述镁的作用。但重要的是回顾镁的测量方法与相关的分析考虑。考虑到镁和药物在各种治疗中的作用,由于药物会导致镁失衡,因此测量镁变得更加相关。还回顾了镁失衡的临床表现和病因,分为低镁血症和高镁血症。
    Magnesium is the fourth most abundant cation in the human body, essential for physiological processes and is the electrolyte with levels commonly deranged in critically ill patients. These derangements of magnesium imbalance can go unnoticed and result in poor clinical outcomes, requiring both worthy attention to abnormal values and accurate tools and methods to measure magnesium reliably. At present, clinical laboratories employ various methodologies for measuring magnesium in blood and urine. This review aims to address the role of magnesium from not only physiological and pathophysiological perspectives, but importantly to review the methods for measuring magnesium with relevant analytical considerations. Given the role of magnesium and drugs for various treatments, measuring magnesium has become more relevant as drugs can lead to magnesium imbalances. Clinical manifestations and etiology of magnesium imbalance as divided into hypomagnesemia and hypermagnesemia are also reviewed.
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  • 文章类型: Journal Article
    Aim: Assessing pain perception through self-reports may not be possible in some patients, for example, sedated. Our group considered if facial electromyography (fEMG) could provide a useful alternative, by testing on healthy participants subjected to experimental pain. Materials & methods: Activity of four facial muscles was recorded using fEMG alongside self-reported pain scores and physiological parameters. Results: The pain stimulus elicited significant activity on all facial muscles of interest as well as increases in heart rate. Activity from two of the facial muscles correlated significantly against pain intensity. Conclusion: Pain perception can be assessed through fEMG on healthy participants. We believe that this model would be valuable to clinicians that need to diagnose pain perception in circumstances where verbal reporting is not possible.
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