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Design and Analysis of Digitally Tunable Transconductance Amplifier (DTTA) Using CNTFETs 使用 CNTFET 的数字可调跨导放大器 (DTTA) 的设计与分析
Q2 Environmental Science Pub Date : 2024-05-23 DOI: 10.1155/2024/2003437
S. Tripathi, Sarfraz Hussain, Raj Kumar, Sourabh Sahu
Carbon nanotube-FETs (CNTFETs) have become a potential challenger because of their exceptional electrical properties and compatibility with conventional CMOS technology. The design and study of digitally tunable transconductance amplifiers (DTTAs) using CNTFETs are the main topics of this work. By utilizing the special characteristics of CNTFETs, the suggested DTTA design makes transconductance tunable, providing a versatile method of adjusting amplifier settings without requiring modifications to the hardware architecture. This study provides a complete description of the CNTFET modeling techniques utilized for realistic circuit simulations, along with a detailed analysis of the DTTA based on CNTFETs. The circuit is implemented using a 32 nm CNTFET model and verified results with HSPICE.
碳纳米管场效应晶体管(CNTFET)因其卓越的电气特性和与传统 CMOS 技术的兼容性,已成为潜在的挑战者。利用 CNTFET 设计和研究数字可调跨导放大器(DTTA)是这项研究的主要课题。通过利用 CNTFET 的特殊特性,建议的 DTTA 设计实现了跨导可调,提供了一种无需修改硬件架构即可调整放大器设置的通用方法。本研究完整描述了用于实际电路仿真的 CNTFET 建模技术,并详细分析了基于 CNTFET 的 DTTA。电路使用 32 nm CNTFET 模型实现,并使用 HSPICE 验证了结果。
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引用次数: 0
Influence of Small-Scale Irrigation on Livelihoods of Rural Farm Households in the Case of Legehida District, Ethiopia 小型灌溉对埃塞俄比亚勒格希达地区农村农户生计的影响
Q2 Environmental Science Pub Date : 2024-05-23 DOI: 10.1155/2024/9982796
Awol Hussen, Arebu Hussen
Irrigation development, particularly small-scale irrigation, is one of the most important projects for improving agricultural productivity in a country’s rural communities. The extent to which small-scale irrigation has improved household livelihoods in Ethiopia’s rural areas is not widely recognized. As a result, research on the influence of small-scale irrigation on farmers’ livelihoods in the Legehida district will be sought. The study took a “with” and “without” strategy, comparing farmers who used irrigation against those who did not. For analysis, both quantitative and qualitative data were employed. The survey’s respondents were chosen using a random sample approach from both irrigation users and nonuser households. Quantitative data for the study were collected from randomly selected 241 farm households, of which 113 were users and 128 were nonusers, using a semistructured questionnaire. Accordingly, the propensity score matching model was employed to examine the impacts of small-scale irrigation on farmers’ livelihoods. The logit model result indicates that cultivated land size, off-farm income, education level, family size, dependency ratio, total livestock unit, and distance to the nearest agricultural extension office/FTC are determinant factors in determining whether to practice irrigation when other factors remain constant. The impact of irrigation on a household’s income and food security (in terms of daily calorie intake) was evaluated using a propensity score matching model. The result shows that a positive and significant impact on farmers who use small-scale irrigation has increased the daily calorie intake and annual income of households by 244.162 kilocalories and 5234.258 ETB, respectively, as compared to nonirrigation users. This shows that households that participate in small-scale irrigation activities have a higher annual income and food security status than comparable groups. In general, the study recommends that to reduce food insecurity and the socioeconomic problems of rural households, irrigation farming is one of the viable solutions; therefore, the government and nongovernmental organizations should extensively focus on the enhancement of small-scale irrigation infrastructure, policies, strategies, and extension services to increase productivity, income, and livelihood improvement in rural households.
灌溉发展,尤其是小型灌溉,是提高一个国家农村社区农业生产力的最重要项目之一。小型灌溉在多大程度上改善了埃塞俄比亚农村地区的家庭生计尚未得到广泛认可。因此,将寻求研究小型灌溉对 Legehida 地区农民生计的影响。研究采取 "使用 "和 "不使用 "的策略,将使用灌溉的农民与不使用灌溉的农民进行比较。分析采用了定量和定性数据。调查对象从灌溉用户和非用户家庭中随机抽样选出。研究的定量数据是通过半结构式问卷从随机抽取的 241 户农户中收集的,其中 113 户为灌溉用户,128 户为非灌溉用户。因此,研究采用了倾向得分匹配模型来考察小型灌溉对农民生计的影响。Logit 模型结果表明,在其他因素保持不变的情况下,耕地面积、非农收入、教育水平、家庭规模、抚养比、牲畜总头数以及与最近的农业技术推广办公室/农技中心的距离是决定是否进行灌溉的决定性因素。采用倾向得分匹配模型评估了灌溉对家庭收入和粮食安全(按每日卡路里摄入量计算)的影响。结果表明,与未使用灌溉系统的农户相比,使用小型灌溉系统的农户的日卡路里摄入量和年收入分别增加了 244.162 千卡和 5234.258 埃提币,对农户产生了积极而显著的影响。这表明,与同类群体相比,参与小型灌溉活动的家庭的年收入和粮食安全状况更高。因此,政府和非政府组织应广泛关注加强小型灌溉基础设施、政策、战略和推广服务,以提高生产力、增加收入和改善农村家庭的生活。
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引用次数: 0
Family Self-Support in Managing Down Syndrome Children: A Qualitative Study 管理唐氏综合症儿童的家庭自我支持:定性研究
Q2 Environmental Science Pub Date : 2024-05-23 DOI: 10.1155/2024/9992595
Farzaneh Noroozi, Z. Farrar, T. Gharibi, R. Gashmard
Background and Aim. Down syndrome (DS) is the most common reason for disabilities caused by genetic disorders. Due to the special nature of this disease and the special needs of children with Down syndrome, they are required to receive their families’ support. Therefore, the recognition of their problems and needs and also the alternatives for resolving them and promoting their life quality are very useful. Also, since very limited qualitative studies have been conducted, it seems necessary to design a qualitative study. Method. This qualitative study was conducted by the content analysis method and through purposeful sampling method with the participation of 26 participants including 15 mothers, 6 fathers, 3 sisters, and 2 brothers of DS children in 2022-2023. The data were collected through semi-structured interviews. Findings. Using the content analysis method of Graneheim and Lundman (2004), the main theme was “Family self-supporting in protecting Down syndrome children.” The subthemes were seven including “trying to find information-support resources,” “Giving importance to child’s health,” “religious beliefs of the family,” “child moral education, helping to child’s relative self-support,” “developing familial support,” and “developing child’s social interactions.” Conclusion and Recommendations. The findings of this study showed that family is the main source of fulfilling the needs of children and their life challenges through using efficient self-support methods. This study introduced family self-support methods in terms of DS children in a way that other families can also manage the problems of their children more efficiently. The present study can be used by trustees of DS to support them and their families. Considering the existence of many problems in children with Down syndrome and the involvement of families, it is suggested that policymakers and community health managers provide the basis for receiving services and social support. For example, it is possible to strengthen the screening systems in the country to diagnose the disease on time and take quick action to solve this problem. Also, by increasing the health insurance coverage and fair distribution of the support resources needed by these people, it promoted the quality of life for them and their families. Also, health policymakers in Iran can take action to increase life expectancy and reduce deaths caused by DS by improving the equitable distribution of health resources and services. Also, public policies should enhance supportive intermediation for prevention and life quality promotion and also decrease health challenges. They are also supposed to lessen the costs of health care. Furthermore, to support social organizations, health service providers and researchers should consider the development of intermediations for the health enhancing and life quality promoting of DS children.
背景和目的。唐氏综合征(Down Syndrome,DS)是遗传性疾病导致残疾的最常见原因。由于这种疾病的特殊性和唐氏综合症儿童的特殊需要,他们需要得到家庭的支持。因此,认识到他们的问题和需要,以及解决这些问题和提高他们生活质量的替代方法是非常有用的。此外,由于定性研究非常有限,似乎有必要设计一项定性研究。研究方法。本定性研究采用内容分析法和有目的抽样法,共有 26 名参与者参与,包括 2022-2023 年 DS 儿童的 15 名母亲、6 名父亲、3 名姐妹和 2 名兄弟。数据通过半结构化访谈收集。研究结果。采用 Graneheim 和 Lundman(2004 年)的内容分析法,主主题为 "保护唐氏综合症儿童的家庭自立"。副主题有七个,包括 "努力寻找信息支持资源"、"重视孩子的健康"、"家庭的宗教信仰"、"孩子的道德教育、帮助孩子相对自立"、"发展家庭支持 "和 "发展孩子的社会交往"。结论与建议。本研究的结果表明,家庭是通过使用有效的自我支持方法来满足儿童需求和应对其生活挑战的主要来源。本研究介绍了 DS 儿童方面的家庭自我支持方法,其他家庭也可以通过这种方法更有效地处理子女的问题。DS 受托人可以利用本研究为 DS 儿童及其家庭提供支持。考虑到唐氏综合症儿童存在的诸多问题以及家庭的参与,建议政策制定者和社区卫生管理者提供接受服务和社会支持的基础。例如,可以加强国内的筛查系统,及时诊断疾病,迅速采取行动解决这一问题。此外,通过提高医疗保险覆盖率和公平分配这些人所需的支助资源,也提高了他们及其家人的生活质量。此外,伊朗的卫生决策者可以采取行动,通过改善卫生资源和服务的公平分配,提高预期寿命,减少 DS 导致的死亡。此外,公共政策应加强预防和提高生活质量的支持性中介活动,并减少健康挑战。公共政策还应该降低医疗成本。此外,为支持社会组织,医疗服务提供者和研究人员应考虑发展中介机构,以增强 DS 儿童的健康并提高其生活质量。
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引用次数: 0
Comparison of Heart Rate Variability in Thai Older Adults with Hypertension, Pre-Hypertension, and Normotension 泰国老年人高血压、高血压前期和正常心率变异性的比较
Q2 Environmental Science Pub Date : 2024-05-21 DOI: 10.1155/2024/9631390
Ruchada Sri-Amad, N. Huipao, Porraporn Sriwannawit, Piyapong Prasertsri, Thapanee Roengrit
Objectives. This study aims to compare HRV variables across three cohorts: normotensive (NT), prehypertensive (pre-HT), and hypertensive (HT) and to assess the relationship between the blood pressure (BP) and HRV parameters. Methods. Employing a cross-sectional design, 64 older participants were categorized based on the Joint National Committee’s criteria into NT (n = 10), pre-HT (n = 33), and HT (n = 21) groups. Anthropometric data, lipid profiles, and HRV indices were evaluated. HRV data were obtained from the Polar V800 chest strap device using HRV Kubios software for data analysis of short-term recordings lasting 10 minutes. This analysis encompasses both time and frequency domain assessments. The time domain includes the standard deviation of NN intervals (SDNN), the root mean square of successive RR interval differences (RMSSD), and the percentage of successive RR intervals differing by over 50 ms (pNN50). The frequency domain includes low frequency (LF), high frequency (HF), and the ratio of LF-to-HF power (LF/HF). Data were statistically analyzed via one-way analysis of variance (ANOVA) and Pearson correlation. Results. The HT group exhibited significantly lower values in SDNN, pNN50, LF power, and HF power in comparison to the NT group (P<0.05). Moreover, the HT group had a significantly lower SDNN value compared to the pre-HT group (P<0.05). Inverse associations were uncovered between systolic and diastolic blood pressure and SDNN, pNN50, and HF power (P<0.05). Multiple regression further highlighted the significance of systolic and pulse pressure concerning HF power (P<0.05). Conclusions. HRV indices are reduced in Thai older adults with HT compared with those with NT. Monitoring HRV in older adults can provide valuable insights into autonomic function and cardiovascular disease risk.
研究目的本研究旨在比较正常血压(NT)、高血压前期(Pre-HT)和高血压(HT)三个组群的心率变异变量,并评估血压(BP)和心率变异参数之间的关系。研究方法采用横断面设计,根据国家联合委员会的标准将 64 名老年参与者分为 NT 组(10 人)、高血压前期组(33 人)和高血压组(21 人)。对人体测量数据、血脂概况和心率变异指数进行了评估。心率变异数据来自 Polar V800 胸带设备,使用 HRV Kubios 软件对持续 10 分钟的短期记录进行数据分析。该分析包括时域和频域评估。时域包括 NNN 间期的标准偏差(SDNN)、连续 RR 间期差异的均方根(RMSSD)和连续 RR 间期差异超过 50 毫秒的百分比(pNN50)。频域包括低频(LF)、高频(HF)和低频与高频功率比(LF/HF)。数据通过单因素方差分析(ANOVA)和皮尔逊相关性进行统计分析。结果。与 NT 组相比,HT 组的 SDNN、pNN50、LF 功率和 HF 功率值明显较低(P<0.05)。此外,与 HT 前组相比,HT 组的 SDNN 值明显较低(P<0.05)。收缩压和舒张压与 SDNN、pNN50 和高频功率之间呈反向关系(P<0.05)。多元回归进一步强调了收缩压和脉压对高频功率的重要性(P<0.05)。结论与 NT 患者相比,患有 HT 的泰国老年人心率变异指数降低。监测老年人的心率变异可为了解自律神经功能和心血管疾病风险提供有价值的信息。
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引用次数: 0
Stigmas and Petals of Crocus sativus L. (Taliouine, Morocco): Comparative Evaluation of Their Phenolic Compounds, Antioxidant, and Antibacterial Activities Crocus sativus L.(摩洛哥塔利乌因)的柱头和花瓣:酚类化合物、抗氧化剂和抗菌活性的比较评估
Q2 Environmental Science Pub Date : 2024-05-21 DOI: 10.1155/2024/6676404
Asmaa Benkerroum, Khadija Oubella, S. Zini, Kaoutar Boussif, H. Mouhanni, F. Achemchem
The dried stigmas of Crocus sativus L. produce saffron, a precious spice used for its culinary and medicinal properties since ancient times, while its petals are considered the main by-product of saffron production. The present study aimed to comparatively evaluate the phenolic content, antioxidant capacity, and antibacterial activity of methanolic extracts of stigmas and petals of Crocus sativus L. from Taliouine. The polyphenol content was measured using the Folin–Ciocalteu method, the antioxidant activity was determined using the DPPH free radical scavenging method, and the well-diffusion method was used to assess antibacterial activity against seven pathogenic bacterial strains (Bacillus subtilis, Escherichia coli, Listeria monocytogenes, Proteus vulgaris, Pseudomonas aeruginosa, Salmonella enterica, and Staphylococcus aureus). Furthermore, the minimum inhibitory concentration (MIC) of the extracts was determined using the microdilution broth test. Our findings revealed that stigmas and petals contained phenolic compounds at the rate of 56.11 ± 4.70 and 64.73 ± 3.42 mg GAE/g, as well as DPPH radical scavenging capacity with IC50 of 1700 µg/ml and 430 µg/ml, respectively. Petal extract showed more effective antibacterial activity, with inhibition diameters ranging from 10.66 ± 0.57 to 22.00 ± 1.00 mm and MIC values ranging from 2.81 to 5.62 mg/ml, compared to the stigma extract, which displayed inhibition diameters from 10.00 ± 0.00 to 18.67 ± 0.76 mm and MIC from 2.81 to 11.25 mg/ml, against five of the seven bacterial strains tested, including S. aureus, E. coli, P. vulgaris, P. aeruginosa, and S. enterica. Statistical analyses were performed to determine the significance of these results. Thus, stigmas and petals of Crocus sativus L. might serve as a suitable source of natural antioxidant and antimicrobial agents for application in the food and pharmaceutical industries.
藏红花(Crocus sativus L.)的干燥柱头可生产藏红花,这是一种珍贵的香料,自古以来用于烹饪和药用,而其花瓣则被认为是藏红花生产的主要副产品。本研究旨在比较评估塔利乌因藏红花柱头和花瓣甲醇提取物的酚含量、抗氧化能力和抗菌活性。采用 Folin-Ciocalteu 法测定多酚含量,采用 DPPH 自由基清除法测定抗氧化活性,采用井扩散法评估对七种致病细菌菌株(枯草杆菌、大肠杆菌、李斯特菌、普通变形杆菌、铜绿假单胞菌、肠炎沙门氏菌和金黄色葡萄球菌)的抗菌活性。此外,还利用微稀释肉汤试验确定了提取物的最低抑菌浓度(MIC)。研究结果表明,柱头和花瓣中的酚类化合物含量分别为 56.11 ± 4.70 和 64.73 ± 3.42 mg GAE/g,DPPH 自由基清除能力的 IC50 分别为 1700 µg/ml 和 430 µg/ml。与柱头提取物相比,花瓣提取物显示出更有效的抗菌活性,抑菌直径从 10.66 ± 0.57 毫米到 22.00 ± 1.00 毫米不等,MIC 值从 2.81 毫克/毫升到 5.62 毫克/毫升不等。在测试的七种细菌菌株中,柱头提取物对其中五种菌株的抑制直径为 10.00 ± 0.00 至 18.67 ± 0.76 毫米,MIC 值为 2.81 至 11.25 毫克/毫升,这些菌株包括金黄色葡萄球菌、大肠杆菌、绿脓杆菌、铜绿假单胞菌和肠球菌。为确定这些结果的意义,进行了统计分析。因此,十字花科植物的柱头和花瓣可作为天然抗氧化剂和抗菌剂的合适来源,应用于食品和制药行业。
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引用次数: 0
Knowledge, Attitude, and Practice of Physiotherapists about Cardiac Rehabilitation Program Adherence among Patients Discharged from the Hospital after Cardiac Surgery in India 印度物理治疗师对心脏手术后出院患者坚持心脏康复计划的认识、态度和做法
Q2 Environmental Science Pub Date : 2024-05-17 DOI: 10.1155/2024/8825476
Ayman Gondekar, Vijay Pratap Singh, Stephen Rajan Samuel, Harish Raghavan, B. Khandelwal, K. V. Kumar
Background In most settings, patients receive phase 1 cardiac rehabilitation in CTVS ICU at the hospital, but there are several barriers to follow-up after patients are discharged from the hospital. Physiotherapists play an important role in the enrolment and continuation of cardiac rehabilitation. Thus, we aim to study the knowledge, attitude, and practice of physiotherapists about CR program adherence among patients discharged from the hospital after cardiac surgery. Objectives (i) To study the knowledge of physiotherapists about the importance of cardiac rehabilitation after discharge; (ii) to know the attitude of physiotherapists towards cardiac surgery patients after discharge; and (iii) to know what approach various centres are applying for patients after discharge to ensure adherence to cardiac rehabilitation. Methods A questionnaire was developed with reference to the objectives of the study, which was answered by a total of 127 physiotherapists. Results The overall response rate was 42.3%; nearly 35.4% of the participants indicated that they knew a lot about CR, while 5.5% said they knew very little. Regarding the program's content, 36.2% of participants reported having a medium degree of awareness of the diverse CR components, while 8.6% reported having very little knowledge of them. Only about one-third, 35.7% stated that CR in India is effective and 95% believed that CR will have an added value for the country. Approximately 80% of respondents thought that it would be challenging for a physiotherapist to recommend patients to a CR in the nation. Nearly 35% of respondents believed that they, “themselves as physios,” needed to commence CR, and slightly less than 70% thought that doctors were required to choose and refer the patients when asked who should take the initiative to start this kind of programme in the country. A little over 40% of respondents said that insurance firms are also involved in starting a CR programme. Conclusion Physiotherapists have good knowledge of cardiac rehabilitation. However, their attitude and practice towards adherence to exercise protocols are confounded by various clinician- and patient-level factors.
背景 在大多数情况下,患者会在医院的 CTVS ICU 接受第一阶段的心脏康复治疗,但患者出院后的随访工作却存在一些障碍。物理治疗师在心脏康复的注册和继续方面发挥着重要作用。因此,我们旨在研究物理治疗师对心脏手术后出院患者坚持心脏康复计划的认识、态度和做法。目标 (i) 研究物理治疗师对出院后心脏康复重要性的认识;(ii) 了解物理治疗师对心脏手术患者出院后的态度;(iii) 了解各中心对出院后患者采用何种方法确保其坚持心脏康复。方法 根据研究目标编制了一份调查问卷,共有 127 名物理治疗师回答了问卷。结果 总体答复率为 42.3%;近 35.4% 的参与者表示对心脏康复了解很多,5.5% 的参与者表示了解很少。关于课程内容,36.2% 的参与者表示对 CR 的不同组成部分有中等程度的了解,而 8.6% 的参与者表示对这些内容知之甚少。只有约三分之一(35.7%)的受访者表示印度的 CR 是有效的,95% 的受访者认为 CR 将为印度带来附加值。约 80% 的受访者认为,物理治疗师向病人推荐印度的 CR 具有挑战性。近 35% 的受访者认为,他们 "自己作为物理治疗师 "需要启动 CR,而当被问及谁应该在该国主动启动此类计划时,略低于 70% 的受访者认为医生需要选择和推荐病人。略高于 40% 的受访者表示,保险公司也参与了 CR 计划的启动。结论 物理治疗师对心脏康复有很好的了解。然而,他们对坚持锻炼方案的态度和做法受到临床医生和患者层面各种因素的影响。
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引用次数: 0
Ophthalmomyiasis Case Caused by Two Blow Fly (Diptera: Calliphoridae) Species in North America 北美由两种吹蝇(双翅目:Calliphoridae)引起的眼肌炎病例
Q2 Environmental Science Pub Date : 2024-05-14 DOI: 10.1155/2024/2209301
Taylor B. Parker, K. Meiklejohn, G. A. Dahlem, Ralph C. Eagle, Marius J. Heersink
Ophthalmomyiasis is the result of fly larvae feeding on the tissues of the eye. Commonly associated with poor hygiene and open wounds, this condition is rare and often stigmatized. Treatment can be straightforward, and full recovery is common. Identifying the species responsible for ophthalmomyiasis is important for the medical, forensic, and entomological communities. Here, we present a case of ophthalmomyiasis where 30–40 blow fly (Diptera: Calliphoridae) larvae were removed from the eye of a human male. A representative subsample of five larvae was used for taxonomic identification via two approaches (a) DNA analysis, via sequencing of the complete mitochondrial genome (mtGenome) and comparison of the mtGenome and mitochondrial COI barcode region to GenBank, and (b) morphology, examination of the posterior spiracles using microscopy, and comparison to published larval descriptions of blow flies. Two species of blow flies were identified from the DNA analysis: Lucilia coeruleiviridis and Phormia regina. Morphological examination could only confirm L. coeruleiviridis as being present. To our knowledge, finding two blow fly species causing ophthalmomyiasis in a single individual has not been previously reported in the scientific literature. Neither P. regina nor L. coeruleiviridis prefers living tissue for larva development, but since they fill similar ecological niches, perhaps this was a show of competition rather than a normal feeding habit. Knowing these blow fly species can resort to this behavior, and that it can affect human populations, is valuable to the education of patients and providers.
眼肌炎是苍蝇幼虫在眼部组织中觅食的结果。这种疾病通常与不良卫生习惯和开放性伤口有关,非常罕见,而且常常被人鄙视。治疗可以很简单,完全康复也很常见。确定眼肌症的病原体对医学界、法医和昆虫学界都很重要。在这里,我们介绍了一例眼肌炎病例,从一名男性患者的眼睛中取出了 30-40 头吹蝇(双翅目:Calliphoridae)幼虫。我们采用了两种方法对其中具有代表性的 5 只幼虫进行分类鉴定:(a)DNA 分析,即对完整的线粒体基因组(mtGenome)进行测序,并将 mtGenome 和线粒体 COI 条形码区与 GenBank 进行比较;(b)形态学鉴定,即使用显微镜检查后螺纹,并与已发表的关于吹蝇幼虫的描述进行比较。通过 DNA 分析确定了两种吹蝇:Lucilia coeruleiviridis 和 Phormia regina。形态学检查只能确认 L. coeruleiviridis 的存在。据我们所知,在一个人身上发现两种引起眼肌炎的吹蝇,这在以前的科学文献中从未报道过。P. regina和L. coeruleiviridis都不喜欢在活体组织中发育幼虫,但由于它们的生态位相似,这也许是一种竞争表现,而不是正常的取食习性。了解到这些吹蝇物种会采取这种行为,而且这种行为会影响人类种群,这对教育患者和提供者很有价值。
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引用次数: 0
Analyzing the Prevalence of and Factors Associated with Road Traffic Crashes (RTCs) among Motorcyclists in Bangladesh 分析孟加拉国摩托车手道路交通事故(RTC)的发生率及其相关因素
Q2 Environmental Science Pub Date : 2024-05-09 DOI: 10.1155/2024/7090576
Md. Mamun Miah, Biton Chakma, Kabir Hossain
Methods A cross-sectional survey was conducted using a structured questionnaire involving 402 motorcyclists from four major southeastern towns, comprising 350 (86.07%) males and 52 (12.93%) females. The chi-square test was applied in bivariate analysis, and binary multivariable logistic regression was performed to determine the risk factors of road traffic crashes. Results This study's findings revealed that the overall reported prevalence of road traffic crashes involving motorcycle drivers over one year was 68.66%. Multivariable logistic regression analysis revealed several factors that significantly impacted road traffic crashes. These factors included driving without a valid driving license, the young age (<20) of motorcyclists, driving in rainy weather, exceeding the speed limit, per-week working hours, smoking status, motorcycle ownership, the brand of motorcycle, and not wearing a helmet while driving. Conclusion The study findings highlight the need for improving motorcycle safety by implementing measures such as imposing per-week work hour limits for riders, enforcing traffic regulations, and promoting helmet use among motorcycle drivers. The results of this study draw attention to the Bangladesh Road Transport Authority (BRTA) and motorcycle drivers in the country to decrease motorcycle crashes and the severity of injuries by implementing efficient guidelines and strategies for driving motorcycles. The findings of this study can assist policymakers and concerned authorities in taking the essential steps to lessen road traffic crashes among motorcyclists in Bangladesh.
方法 采用结构化问卷进行横断面调查,调查对象包括东南部四个主要城镇的 402 名摩托车驾驶员,其中男性 350 人(86.07%),女性 52 人(12.93%)。二元分析采用卡方检验,二元多变量逻辑回归确定道路交通事故的风险因素。结果 研究结果显示,一年内涉及摩托车驾驶员的道路交通事故总体发生率为 68.66%。多变量逻辑回归分析显示,有几个因素对道路交通事故有重大影响。这些因素包括无有效驾驶执照驾驶、摩托车驾驶员年龄小于 20 岁、雨天驾驶、超速、每周工作时间、吸烟状况、摩托车拥有量、摩托车品牌以及驾驶时未佩戴头盔。结论 研究结果突出表明,有必要通过实施各种措施来提高摩托车的安全性,例如对摩托车驾驶员实行每周工作时间限制、执行交通法规以及向摩托车驾驶员推广使用头盔。本研究结果提请孟加拉国道路运输管理局(BRTA)和该国的摩托车驾驶员注意,通过实施有效的摩托车驾驶指南和策略,减少摩托车碰撞事故和受伤的严重程度。本研究的结果可帮助决策者和有关当局采取必要措施,减少孟加拉国摩托车驾驶员的道路交通事故。
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引用次数: 0
Molecular Detection and Phylogenetic Analysis of the alkB Gene in Klebsiella oxytoca Strains Isolated from the Gut of Tenebrio molitor 从褐天牛肠道中分离出的克雷伯菌株中 alkB 基因的分子检测和系统发育分析
Q2 Environmental Science Pub Date : 2024-05-09 DOI: 10.1155/2024/3350591
Tsitsi Lynn Mupamhadzi, Oleen Machona, F. Chidzwondo, Rumbidzai Mangoyi
The challenge in polystyrene disposal has caused researchers to look for urgent innovative and ecofriendly solutions for plastic degradation. Some insects have been reported to use polystyrene as their sole carbon source, and this has been linked to the presence of microbes in their guts that aid in plastic digestion. Thus, this study focuses on the molecular detection and phylogenetic analysis of the alkane-1-monooxygenase (alkB) gene in Klebsiella oxytoca strains isolated from the gut of Tenebrio molitor. The alkB gene encodes for alkane-1-monooxygenase, an enzyme involved in the oxidation of inactivated alkanes. This gene can be used as a marker to assess bacteria's ability to biodegrade polystyrene. Three bacterial strains were isolated from the guts of T. molitor mealworms and were confirmed using polymerase chain reaction (PCR) of the 16S ribosomal RNA gene. The primers used in the amplification of the 16S ribosomal RNA region were designed using NCBI, a bioinformatics tool. To detect the presence of the alkB gene in the isolated bacterial strains, a set of primers used in the amplification of this gene was manually designed from the conserved regions of the alkB nucleotide sequences of eleven bacterial species from GenBank. TCOFFE online tool was used to align the alkB sequences of the bacteria, while Jalview and ConSurf were used to view the alignment. The amplified alkB gene was then sequenced using the Sanger sequencing technique, blasted on NCBI to look for similar sequences, and a phylogenetic tree was constructed. Based on the 16S ribosomal RNA gene sequences, the isolated bacterial strains were confirmed to be Klebsiella oxytoca NBRC 102593, Klebsiella oxytoca JCM 1665, and Klebsiella oxytoca ATCC 13182. The alkB gene sequence identical to fourteen alkB gene sequences derived from Actinobacteria whole genome was detected in Klebsiella oxytoca for the first time to the best of our knowledge. The novel nucleotide sequence was published in the NCBI database under accession number OP959069. This gene sequence was found to be for the enzyme alkane-1-monooxygenase and may be one of the enzymes responsible for polystyrene degradation by the putative Klebsiella oxytoca ATCC 13182 in T. molitor.
聚苯乙烯处理面临的挑战促使研究人员急需寻找创新和生态友好的塑料降解解决方案。据报道,一些昆虫将聚苯乙烯作为其唯一的碳源,这与昆虫内脏中存在帮助消化塑料的微生物有关。因此,本研究重点对从褐斑天牛肠道中分离出的氧合克雷伯氏菌菌株中的烷烃-1-单加氧酶(alkB)基因进行分子检测和系统发育分析。alkB 基因编码烷烃-1-单加氧酶,这是一种参与氧化失活烷烃的酶。该基因可用作评估细菌生物降解聚苯乙烯能力的标记。从黄粉虫内脏中分离出三种细菌菌株,并通过 16S 核糖体 RNA 基因的聚合酶链反应(PCR)进行确认。用于扩增 16S 核糖体 RNA 区域的引物是利用生物信息学工具 NCBI 设计的。为检测分离出的细菌菌株中是否存在 alkB 基因,根据 GenBank 中 11 种细菌的 alkB 核苷酸序列的保守区人工设计了一套用于扩增该基因的引物。使用 TCOFFE 在线工具对细菌的 alkB 序列进行比对,并使用 Jalview 和 ConSurf 查看比对结果。然后利用桑格测序技术对扩增的 alkB 基因进行测序,并在 NCBI 上搜索相似序列,构建系统发生树。根据 16S 核糖体 RNA 基因序列,分离出的细菌菌株被确认为产气克雷伯氏菌(Klebsiella oxytoca NBRC 102593)、产气克雷伯氏菌(Klebsiella oxytoca JCM 1665)和产气克雷伯氏菌(Klebsiella oxytoca ATCC 13182)。据我们所知,这是首次在克雷伯菌中检测到与来自放线菌全基因组的 14 个 alkB 基因序列相同的 alkB 基因序列。新的核苷酸序列已发表在 NCBI 数据库中,登录号为 OP959069。该基因序列被认为是烷烃-1-单加氧酶,可能是推测的氧合克雷伯氏菌 ATCC 13182 在褐飞虱体内降解聚苯乙烯的酶之一。
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引用次数: 0
Assessing Evidence-Based Practice in Operating Room Nursing Students: A Cross-Sectional Study in the Southwest of Iran. 评估手术室护理专业学生的循证实践:伊朗西南部的一项横断面研究。
Q2 Environmental Science Pub Date : 2024-05-09 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5552711
Jamshid Eslami, Amir Arsalan Saeedi, Majid Najafi Kalyani

Evidence-based practice (EBP) is a clinical decision-making process that is grounded in the utilization of the most reliable and up-to-date evidence. It involves utilizing resources and evidence to enhance patient management. The application of evidence-based decisions in patient care and education is of utmost importance in the performance of health sciences students. However, the emphasis on this concept among operating room nursing students has been lacking. Hence, the objective of this research is to assess the implementation of evidence-based practice among operating room nursing students studying in the operating room department at the Shiraz University of Medical Sciences in Iran. The study follows a descriptive, cross-sectional design, with a sample of 148 operating room nursing students selected through census sampling based on the student list. After obtaining informed consent, participants completed a demographic information form and the Rubin-Parrish evidence-based practice questionnaire. The data that were gathered underwent analysis through the utilization of SPSS version 22 software, employing descriptive statistics, T-tests, and Pearson correlation coefficient tests. The results revealed that the overall average score of evidence-based practice among the students exceeded the standard scores (172.66 ± 14.74). There was a significant association between the evidence-based practice score and prior familiarity with evidence-based practice, interest in the field of study, research experience, intention to participate in the Master's exam, and the participants' grade point average (GPA) (p < 0.05). These findings indicate that operating room nursing students displayed an average level of evidence-based practice, emphasizing the need for effective plans and strategies to improve their performance. Addressing the identified factors from this study becomes crucial in this regard.

循证实践(EBP)是一种临床决策过程,以利用最可靠的最新证据为基础。它涉及利用资源和证据来加强对病人的管理。在病人护理和教育中应用循证决策对健康科学专业学生的表现至关重要。然而,手术室护理专业学生对这一概念的重视程度一直不足。因此,本研究的目的是评估在伊朗设拉子医科大学手术室系学习的手术室护理专业学生实施循证实践的情况。本研究采用描述性横断面设计,根据学生名单通过普查抽样选取了 148 名手术室护理学生作为样本。在获得知情同意后,参与者填写了人口统计学信息表和鲁宾-帕里什循证实践问卷。收集到的数据通过 SPSS 22 版软件进行了分析,采用了描述性统计、T 检验和皮尔逊相关系数检验。结果显示,学生的循证实践总平均分超过了标准分(172.66 ± 14.74)。循证实践得分与之前对循证实践的熟悉程度、对学习领域的兴趣、研究经历、参加硕士考试的意向以及参与者的平均学分绩点(GPA)之间存在明显关联(P < 0.05)。这些研究结果表明,手术室护理专业学生的循证实践水平一般,强调需要制定有效的计划和策略来提高他们的表现。在这方面,解决本研究中发现的因素至关重要。
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