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Alzheimer au travers les cultures: Examiner l'impact des circonstances des communautés autochtones et des perspectives culturelles sur le traitement. 跨文化的阿尔茨海默氏症:研究土著社区环境和文化视角对治疗的影响。
Pub Date : 2024-06-06 DOI: 10.18192/osurj.v3i1.7164
Amro Habash, Aastha Sah
An estimated 10,800 people of Indigenous ancestry in Canada live with dementia [1], for which the most predominant cause is Alzheimer’s disease [2]. While there are no known interventions that can cure Alzheimer's, both pharmacological and therapeutic treatments are widely employed [2]. While these treatment avenues have been widely implemented among the general Canadian population, there is a knowledge gap with regards to how the differing circumstances and cultural approaches of the Indigenous community impact how they interface with these treatments [3].As such, the proposed study would investigate and summarize the existing literature on how these unique circumstances and cultural perspectives could impact access to care and influence the perception, diagnosis, and treatment of Alzheimer’s in Indigenous communities. Given the general higher susceptibility of Indigenous populations to Alzheimer’s due to a higher prevalence of modifiable risk factors [4], it is hypothesized that the unique circumstances and cultural perspectives of the Indigenous community will, similarly, reflect poorer treatment outcomes for Alzheimer’s in Indigenous populations than the general Canadian population.The methodology employed by this study would be a systematic review, serving as a general, but reproducible, outlook on the current state of research in this subject area and as a foundation for further research.The proposed study would serve to determine the best approaches to and need for implementing accessible and culturally-sensitive care for Alzheimer’s disease in Indigenous communities. The insights gained would allow for further understanding and integration of the underrepresented Indigenous perspective within the healthcare system. 
据估计,加拿大有 10,800 名土著居民患有痴呆症[1],其中最主要的病因是阿尔茨海默氏症[2]。虽然目前还没有已知的干预措施可以治愈阿尔茨海默氏症,但药物和治疗方法已被广泛采用 [2]。因此,拟议的研究将调查和总结现有文献,研究这些独特的环境和文化视角如何影响土著社区对阿尔茨海默氏症的认知、诊断和治疗。鉴于土著居民因可改变的风险因素较多而普遍更易患阿尔茨海默氏症[4],因此假设土著社区的独特环境和文化视角同样会反映出土著居民的阿尔茨海默氏症治疗效果比一般加拿大人差。本研究采用的方法将是系统性综述,对这一主题领域的研究现状进行总体但可重复的展望,并为进一步研究奠定基础。拟议的研究将有助于确定在土著社区实施无障碍和文化敏感型阿尔茨海默氏症护理的最佳方法和需求。所获得的见解将有助于进一步理解和整合医疗保健系统中代表性不足的土著观点。
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引用次数: 0
The Analysis of eTick Submission in Ontario 安大略省电子票据提交分析
Pub Date : 2024-06-06 DOI: 10.18192/osurj.v3i1.6989
Engluy Khov, R. McKay, Manisha A. Kulkarni
Purpose: Ixodes scapularis, also known as the eastern blacklegged tick, is associated with the vector-borne Lyme disease in North America. With climate change, warming temperatures have increased the number of areas suitable for ticks, and contributed to the expansion of tick species in Canada. The purpose of this project was to identify recent trends in tick range expansion and species diversity in Ontario by analyzing 2019 to 2022 data from the web-based tick surveillance platform, eTick.ca. Method: The eTick.ca web platform allows the public to submit tick photos for identification. We extracted data from the tick submissions for Ontario between mid-2019 to 2022 including information on the type of species, host types, travel history, and location. Microsoft Excel was used to generate distribution tables and graphs of tick submissions by species, month/year and host type for Ontario. Geographic Information Systems (ArcGIS) and SaTScan software were used to identify spatial clusters of tick submissions adjusting for the human population size using Ontario census subdivisions. Result: A total of 14,611 tick photo submissions were recorded between 2020 to 2022, excluding those with a history of recent travel. The year 2021 had the highest number of submissions (n=7339). Dermacentor species comprised the majority of submissions (n=9498, 65%), followed by I. scapularis (n=4810, 33%) and other species (n=303, 2%) between 2020-2022. Ticks were most commonly discovered on a human host (n=10,084), followed by animal hosts (n=3485), and free in environments (n=1042). Additionally, the majority of species were found in the adult stage (n=12,821, 88%), followed by unknown (n=1539, 10%) and immature stages (n=251, 2%). Clusters of I. scapularis were present in the Eastern, Central, and Southern Ontario regions, while clusters of Dermacentor sp. were present in Southern and Central Ontario regions. Conclusion: Spatial and temporal variations in tick submissions in Ontario were identified over the 3.5 year period since the implementation of eTick in the province. Data from eTick can be used to identify hotspots of human-tick exposure.
目的:Ixodes scapularis 又称东部黑腿蜱,在北美与病媒传播的莱姆病有关。随着气候变化,气温变暖增加了适合蜱虫生存的地区数量,并导致加拿大蜱虫物种的扩展。本项目旨在通过分析基于网络的蜱虫监测平台 eTick.ca 中 2019 年至 2022 年的数据,确定安大略省蜱虫分布范围扩大和物种多样性的最新趋势。 方法:eTick.ca 网络平台允许公众提交蜱虫照片进行鉴定。我们从 2019 年年中至 2022 年安大略省提交的蜱虫数据中提取了包括物种类型、宿主类型、旅行史和地点等信息。我们使用 Microsoft Excel 生成了按物种、月份/年份和寄主类型分列的安大略省蜱虫提交分布表和分布图。使用地理信息系统 (ArcGIS) 和 SaTScan 软件确定蜱虫感染的空间集群,并使用安大略省人口普查分区对人口规模进行调整。 结果:2020 年至 2022 年期间,共记录了 14,611 张蜱虫照片,其中不包括近期旅行过的蜱虫。2021 年的提交数量最多(n=7339)。在 2020 年至 2022 年期间提交的照片中,皮蜱种类占大多数(n=9498,65%),其次是恙螨(n=4810,33%)和其他种类(n=303,2%)。蜱虫最常在人类宿主身上发现(n=10084),其次是动物宿主(n=3485)和环境中的游离蜱(n=1042)。此外,发现的大多数物种处于成虫阶段(n=12,821,88%),其次是未知阶段(n=1539,10%)和未成熟阶段(n=251,2%)。在安大略省东部、中部和南部地区发现了I. scapularis集群,而在安大略省南部和中部地区发现了Dermacentor sp.集群。 结论自安大略省实施 eTick 以来的 3.5 年间,安大略省蜱虫报告的时空变化得到了确认。来自 eTick 的数据可用于确定人类接触蜱虫的热点地区。
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引用次数: 0
Antibiotic Resistance- The Silent Pandemic 抗生素耐药性--无声的流行病
Pub Date : 2024-06-06 DOI: 10.18192/osurj.v3i1.7147
Sivany Kathir
[No abstract written]
[无摘要]
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引用次数: 0
D’un diagnostic de la maladie d'Alzheimer à une solution 从阿尔茨海默病诊断到解决方案
Pub Date : 2024-06-06 DOI: 10.18192/osurj.v3i1.7163
A.-S. Walker
Meet Mrs. Rodriguez, a 72 year-old retired school teacher, now living by herself, who was recently diagnosed with Alzheimer’s Disease (AD). AD represents the cause of 60% to 80% of Dementias [7], a broad term that encompasses conditions describing symptoms associated with progressive deterioration of cognitive activity, and of which the prevalence increases over the age of 65 years old [12] [7].
罗德里格斯夫人是一位 72 岁的退休教师,现在独自生活,最近被诊断出患有阿尔茨海默病(AD)。阿兹海默症是 60% 至 80% 痴呆症的病因[7],这是一个广义的术语,包括与认知活动逐渐退化相关的症状,其发病率在 65 岁以上有所增加[12][7]。
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引用次数: 0
Medicinal Marijuana: A Promising Potential Treatment for Obstructive Sleep Apnea 药用大麻:一种治疗阻塞性睡眠呼吸暂停的有希望的潜在方法
Pub Date : 2019-09-04 DOI: 10.18192/osurj.v2i1.4173
Gurvir Rai, Anokhee Thakker, H. Patel
Obstructive Sleep Apnea (OSA) is a common sleep disorder in mammals which is characterized by the repeated collapse of the upper airway. It is a known cause of hypertension, cardiovascular disease, and, in some cases, death. OSA is commonly treated by medical devices and surgeries. Although effective, these treatments are associated with unwanted side-effects and further complications. In recent years, the role of medicinal marijuana has grown as a potential treatment for sleep disorders. Further research must be conducted to determine the efficacy and safety of cannabis as a treatment for OSA.
阻塞性睡眠呼吸暂停(OSA)是哺乳动物中一种常见的睡眠障碍,其特征是上呼吸道反复塌陷。它是高血压、心血管疾病的已知原因,在某些情况下还会导致死亡。阻塞性睡眠呼吸暂停通常通过医疗设备和手术治疗。这些治疗方法虽然有效,但会产生不必要的副作用和进一步的并发症。近年来,药用大麻在治疗睡眠障碍方面的作用越来越大。必须进行进一步的研究,以确定大麻治疗阻塞性睡眠呼吸暂停的有效性和安全性。
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引用次数: 0
Increasing the brightness of red fluorescent proteins by saturation mutagenesis 通过饱和诱变提高红色荧光蛋白的亮度
Pub Date : 2018-08-31 DOI: 10.18192/osurj.v1i1.3666
Erin Nguyen, Antonia T. Pandelieva, R. Chica
Red fluorescent proteins (RFPs) are genetically-encoded fluorophores that are widely used for in vivo imaging. For all applications of RFPs, brighter variants are desired. Previously, we improved the brightness of mRojoA, a red-shifted mutant of the widely-used RFP mCherry, by designing a triple-decker motif of aromatic rings around its chromophore. This yielded the brighter variant mRojo-VHSV, which contains a triple-decker motif consisting of His and Tyr side chains that pack against the chromophore. This improved chromophore packing resulted in an approximately 3-fold brightness increase at physiological pH. However, the His side chain in the triple-decker motif of mRojo-VHSV adopted a perpendicular arrangement to the other two, which may result in a suboptimal packing arrangement. To further improve chromophore packing in mRojo-VHSV, we performed saturation mutagenesis of residues surrounding its triple-decker motif (positions 62, 97, 165, and 199). Using a microplate fluorescence screening assay, a total of 376 colonies were screened for improved brightness. The brightest mutant found, L199M, was expressed and purified, and its spectral properties were characterized in detail. We found that the quantum yield of this variant was improved by two-fold, resulting in a two-fold brightness increase compared to mRojo-VHSV as well as a 5.3-fold increase in brightness compared to mRojoA. The L199M improved variant is the basis for continued engineering with the goal of further improving the spectral properties of this family of RFPs.
红色荧光蛋白(rfp)是一种基因编码的荧光团,广泛用于体内成像。对于rfp的所有应用,需要更亮的变体。此前,我们通过在其发色团周围设计三层芳香环基序,提高了广泛使用的RFP mCherry的红移突变体mRojoA的亮度。这产生了更亮的变体mRojo-VHSV,它包含一个由His和Tyr侧链组成的三层基序,这些侧链与发色团重叠。这种改进的发色团排列导致生理ph值下亮度增加了约3倍。然而,mRojo-VHSV三层基序中的His侧链与其他两个侧链垂直排列,这可能导致不理想的排列。为了进一步改善mRojo-VHSV的发色团包装,我们对其三层基序(位置62、97、165和199)周围的残基进行了饱和诱变。利用微孔板荧光筛选试验,共筛选了376个菌落,以提高亮度。对发现的最亮突变体L199M进行了表达和纯化,并对其光谱特性进行了详细表征。我们发现该变体的量子产率提高了两倍,亮度比mRojo-VHSV提高了两倍,亮度比mRojoA提高了5.3倍。L199M改进型是继续工程的基础,其目标是进一步改善该系列rfp的光谱特性。
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引用次数: 0
Examining cognitive training and executive function in older adults 研究老年人的认知训练和执行功能
Pub Date : 2018-08-27 DOI: 10.18192/osurj.v1i1.3777
M. Porteous, Sheida Rabipour, P. Davidson
Studies have shown that cognitive functions decline with increasing age. As the population of older adults (OA) has grown, interest in cognitive training programs (CTP) has steadily expanded. The present study investigated whether CTP can lead to improvements in the performance of OA on cognitive tasks. Thirty-five adults (OA; 60-87 years) were recruited to complete 25 sessions of a CTP over five weeks, with assessments completed before and after the program. Thirty-two young adults (YA; 17-27 years) were also recruited to complete one assessment for baseline comparison with OA. During assessments, participants were evaluated using tasks of executive function, including the N-back task of working memory and Flanker task of inhibition. The response time (RT) and hit rates of YA and OA on these tasks were examined at baseline, as well as changes in OA pre- and post-training. Repeated measures analysis of variance indicated a reduction of pre- and post-training RT for the Flanker task. There was no post-training change in RT on the N-back task. While OA hit rates did not change significantly pre- and post-assessment on the Flanker task, they showed increased hit rates post-training in the N-back task. In both tasks, OA and YA hit rates and RT were significantly different, with YA demonstrating lower RT and hit rate compared to OA. Follow-up studies will determine whether other factors can also lead to improvement. Determining whether CTP can improve cognitive performance in OA can help determine the potential of such approaches to prevent or rehabilitate age-related cognitive decline.
研究表明,认知功能随着年龄的增长而下降。随着老年人口(OA)的增长,对认知训练项目(CTP)的兴趣稳步扩大。本研究调查了CTP是否能改善OA在认知任务中的表现。成人35例(OA;60-87岁),在五周内完成25次CTP,并在项目前后完成评估。32名青壮年(YA;17-27岁)也被招募来完成与OA基线比较的一个评估。在评估过程中,参与者使用执行功能任务进行评估,包括工作记忆的N-back任务和抑制的Flanker任务。在训练前和训练后,我们分别检测了志愿者在这些任务上的反应时间(RT)和命中率,以及OA的变化。重复测量方差分析表明,侧卫任务训练前和训练后的RT减少。训练后N-back任务的RT没有变化。在侧卫任务的训练前后,OA的命中率没有显著变化,但在N-back任务的训练后,OA的命中率有所增加。在这两个任务中,OA和YA的命中率和命中率都有显著差异,其中YA的命中率和命中率低于OA。后续研究将确定其他因素是否也能导致改善。确定CTP是否可以改善OA患者的认知表现,有助于确定这种方法预防或恢复与年龄相关的认知衰退的潜力。
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引用次数: 0
The effect of context on sensory accumulation involved in decision-making 情境对决策过程中感官积累的影响
Pub Date : 2018-08-23 DOI: 10.18192/osurj.v1i1.3684
Léa Caya-Bissonnette
The underlying processes allowing for decision-making has been a question of interest for many neuroscientists. The lateral intraparietal cortex, or LIP, was shown to accumulate context and sensory information to compute a decision variable. The following review will present the work of Kumano, Suda and Uka who studied the link between context and sensory information during decision-making. To do so, a monkey was trained to associate the color of a fixating dot to one of two tasks. The tasks consisted in either indicating the motion or the depth of themajority of the dots on a screen. The local field potential of the LIP neurons was recorded, and the researchers found a role of context during the stimulus presentation in regards to decision formation. The results have important implication for mental disorders involving malfunction in decision processes.
许多神经科学家都对决策的潜在过程感兴趣。侧边顶叶内皮层(LIP)被证明能够积累环境和感觉信息来计算决策变量。下面的综述将介绍熊野,须达和乌卡的工作,他们研究了决策过程中环境和感觉信息之间的联系。为了做到这一点,猴子被训练将注视点的颜色与两项任务中的一项联系起来。这些任务包括指示屏幕上大多数点的运动或深度。LIP神经元的局部场电位被记录下来,研究人员发现,在刺激呈现过程中,环境在决策形成方面起着重要作用。研究结果对涉及决策过程功能障碍的精神障碍具有重要意义。
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引用次数: 0
A spherically topological analysis of stationary black holes 静止黑洞的球拓扑分析
Pub Date : 2018-08-23 DOI: 10.18192/osurj.v1i1.3693
Benjamin Puzantian
A black hole with zero angular momentum is said to be stationary and under certain conditions such a black hole can represented as a sphere. This review examines Hawking’s topology theorem, the Schwarzschild metric, novel solutions to Einstein’s equations, resonances of hyperbolic orbits around the event horizon for spherical, stationary black holes, and analyzes their importance. It is suggested, that in the spherical stationary black hole case, the Fourier analysis can be used to find the resonances due to Geometric scattering of hyperbolic orbits and thus the outgoing energy fields from the event horizon can be found more precisely; allowing for the adequate signal processing analysis to be found for such a field.
角动量为零的黑洞被认为是静止的,在某些条件下,这样的黑洞可以表示为球体。本文回顾了霍金的拓扑定理、史瓦西度规、爱因斯坦方程的新解、球形静止黑洞视界周围双曲轨道的共振,并分析了它们的重要性。提出在球形静止黑洞情况下,利用傅里叶分析可以找到双曲轨道几何散射引起的共振,从而可以更精确地找到视界的出射能量场;允许为这样一个领域找到适当的信号处理分析。
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引用次数: 0
Expressing the randomity of events – An analysis of random number generation with given distributions 表达事件的随机性-给定分布下随机数生成的分析
Pub Date : 2018-08-23 DOI: 10.18192/osurj.v1i1.3702
Carl Zhou
In cases where it is necessary to generate random numbers that obey specific distributions, some of those distributions can be expressed as mathematical functions while others cannot. This is especially the case for epidemiological, medical, and pharmaceutical investigations, where more accurate methods, utilising actual distribution (from survey and experimental data) to generate random numbers may be required. In this study, three methods are analyzed to demonstrate simple computation examples. These methods include: inverse transform,acceptance-rejection, and Monte-Carlo simulations. Their applications are explored from a data analysis point of view. Additionally, this article discusses a flexible and practical approach of statistical measures optimization, which approximates the solution by fitting the statistical measures.
在需要生成服从特定分布的随机数的情况下,其中一些分布可以表示为数学函数,而另一些则不能。对于流行病学、医学和药物调查尤其如此,在这些调查中可能需要更准确的方法,利用(来自调查和实验数据的)实际分布来产生随机数。本文分析了三种方法,并给出了简单的计算实例。这些方法包括:反变换、接受-拒绝和蒙特卡罗模拟。从数据分析的角度探讨了它们的应用。此外,本文还讨论了一种灵活实用的统计度量优化方法,该方法通过拟合统计度量来近似解决方案。
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引用次数: 0
期刊
University of Ottawa Science Undergraduate Research Journal
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