Open Access Journal of Science and Technology最新文献_第9页

Reactive Silica Sand Powder Concrete (RSSPC) Uniaxial Compressive Strength Investigation 活性硅砂粉混凝土(RSSPC)单轴抗压强度研究

Open Access Journal of Science and Technology Pub Date : 2017-03-05 DOI: 10.11131/2017/101230

H. Sadeghi

{"title":"Reactive Silica Sand Powder Concrete (RSSPC) Uniaxial Compressive Strength Investigation","authors":"H. Sadeghi","doi":"10.11131/2017/101230","DOIUrl":"https://doi.org/10.11131/2017/101230","url":null,"abstract":"Nowadays, high-strength concrete is an integral part of so many high-rise buildings. In accordance with the ACI 211.1-91 the mixture aggregate size should be less than 0.5 inches in order to achieve a uniaxial compressive strength greater than 9000 psi. On the other hand, finding a suitable aggregate grading distribution of concrete mix design is a big deal; hence force, the authors propose a mix proportion with no coarse aggregate still withstand enough strength. Silica sand powder concrete is a type of concrete with actually no coarse material in its own composition. In this concrete, the only aggregate is silica sand powder in which its size is less than \u0000150 μm that is very small in size. According to the ASTM C 33, this concrete is classified as an ultra-fine aggregate concrete. The research interest is to find the compressive strength of this particular concrete under different conditions of curing and consolidation to compare each approach with each other. In this article, the young concrete specimen was compacted with a pressing or vibrating process. It is worthwhile to mention that to show the role of temperature on the curing process, the concrete specimen was cured both in 20∘C lime water or autoclaved in 90∘C oven.","PeriodicalId":19674,"journal":{"name":"Open Access Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81756589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Three-Party (Physician-Pharmacist-Director) Collaboration Model on Teamwork Effectiveness Improvement in Hospital 医院团队效能提升的三方(医师-药师-主任)协作模式

Open Access Journal of Science and Technology Pub Date : 2017-01-31 DOI: 10.11131/2017/101156

Widysusanti Abdulkadir, Fendy Suhariadi, Arief Wibowo, C. Hadi

引用次数: 1

Clinical Application of Neuroplastic Brain Research in Eating Disorder Treatment 神经可塑性脑研究在饮食失调治疗中的临床应用

Open Access Journal of Science and Technology Pub Date : 2016-11-12 DOI: 10.11131/2016/101219

A. Natenshon

{"title":"Clinical Application of Neuroplastic Brain Research in Eating Disorder Treatment","authors":"A. Natenshon","doi":"10.11131/2016/101219","DOIUrl":"https://doi.org/10.11131/2016/101219","url":null,"abstract":"Eating disorders (ED) are disorders of the brain. As scientists acknowledge the genetic basis of ED and their deleterious impact on brain circuitry, practitioners need to recognize the importance of healing the eating disordered brain, along with the patient. The time has come for the ED treatment community to access the neuroplastic brain's capacity to heal itself through the introduction of non-invasive, integrative, adjunctive neurophysiological interventions into mainstream ED clinical practice. Eating disorder pathology marks the loss of the brain's capacity to integrate mind, brain and body, impacting the integrity of the core self. By re-defining the development of the self as an embodied, sensory-based processgrounded in kinesthetic experience, 21st century brain research and technology has substantively expanded the breadth and depth of effective treatment strategies for ED and their co-occurring conditions to include various forms of somatosensory interventions. \u0000Neurophysiological and psychophysiological treatment interventions, by carving new neuronal pathways and creating connectivity that augments brain circuitry, carry the potential to remediate body image and self-image distortions, reintegrating the fragmented eating disordered core self. To date, intentional partnering between therapist, ED patient, and neuroplastic brain has been rarely applied in the clinical milieu and minimally referenced in the treatment literature. By bringing current neuroplasticity research into frontline practice, ED practitioners not only bridge the research/practice gap, but redefine new directions for future ED research.","PeriodicalId":19674,"journal":{"name":"Open Access Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77787598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Association of Malnutrition and Chronic Stress Models Does Not Present Overlay Effects in Male Wistar Rats 营养不良和慢性应激模型的关联在雄性Wistar大鼠中不存在叠加效应

Open Access Journal of Science and Technology Pub Date : 2016-08-31 DOI: 10.11131/2016/101222

Camila G. C. Lemes, Abra ao Tiago Batista Guimar aes, Wellington Alves Mizael Silva, B. Mendes, D. C. Estrela, A. D. S. Santos, J. R. B. Junior, I. Torres, ré Talvani, G. Malafaia

{"title":"The Association of Malnutrition and Chronic Stress Models Does Not Present Overlay Effects in Male Wistar Rats","authors":"Camila G. C. Lemes, Abra ao Tiago Batista Guimar aes, Wellington Alves Mizael Silva, B. Mendes, D. C. Estrela, A. D. S. Santos, J. R. B. Junior, I. Torres, ré Talvani, G. Malafaia","doi":"10.11131/2016/101222","DOIUrl":"https://doi.org/10.11131/2016/101222","url":null,"abstract":"Chronic stress and protein-energy malnutrition (PEM) are both social problems resulting in physiological and behavioral alterations. In this present study an associative effects of PEM and chronic stress were evaluated through in Wistar rats. Four groups were established: standard diet– 19% of protein (Std); Std + stress; PEM–6% of protein and PEM + stress. In these groups were assessed physical, nutritional, hematological, histological parameters and anxiety-like behavior. There were a reduction of food intake, body mass and relative weight of the heart and thymus in the PEM group. The liver of the PEM animals presented a degenerative condition with steatosis and Kupffer cell hypertrophy and, additionally, a significant decrease in hematocrit percentages, in the number of red blood cells and in the concentration of hemoglobin and total protein. In those animals under stress and Std diet, there was observed an increase of the relative adrenal weights, an acute condition of leukocytosis with a predominance of neutrophils and an increase in the anxiety-like behavior. There was no overlapping/interaction among the anthropometric, biochemical, hematological and histological effects using PEM and stress in Wistar rats. The effects observed under experimental condition were those related to either PEM or stress, independently.","PeriodicalId":19674,"journal":{"name":"Open Access Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79435493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Assessment of caries activity using the Calcivis® Caries Activity Imaging System 使用Calcivis®龋齿活动成像系统评估龋齿活动

Open Access Journal of Science and Technology Pub Date : 2016-08-31 DOI: 10.11131/2016/101241

A. Jablonski-Momeni, Lukas Kneib

{"title":"Assessment of caries activity using the Calcivis® Caries Activity Imaging System","authors":"A. Jablonski-Momeni, Lukas Kneib","doi":"10.11131/2016/101241","DOIUrl":"https://doi.org/10.11131/2016/101241","url":null,"abstract":"Objective: An adequate diagnosis of dental caries means not only assessment of the change and the spread of change in the lesion, but also making a decision concerning its possible activity. Caries activity is primarily assessed using visual-tactile criteria that help estimate the probability of a carious lesion to progress. The aim of the present study was to test the capability of a new approach to ascertain lesion activity by means of bioluminescence (CalcivisⓇ Caries Activity Imaging System, Calcivis) in-vitro. Subjects and Methods: 46 extracted permanent posterior teeth were included in the study (30 occlusal surfaces, 16 smooth surfaces). The investigation sites were classified by two examiners using ICDAS and NYVAD criteria for lesion activity (activity yes/no) and consensus score of each site was determined as reference value. The sites were photographed using a prototype Calcivis System and the images were evaluated by both examiners for the presence of activity (bioluminescence, blue spots at the investigation sites). Correlation of methods was calculated using Spearman's rank correlation coefficient (rs). Agreement between methods was assessed by kappa statistics. ROC curves were created for Calcivis and both visual methods and the areas under the Curve (AUC) were compared (α=0.05). Results: Significant positive correlation was found between Calcivis and the visual detection methods: rs ICDAS=1.0, rs Nyvad criteria=0.776 (p<0.001). Kappa-values were: Calcivis/ICDAS=1.0, Calcivis/Nyvad=0.78. AUC for Calcivis was 1.0 (ICDAS as reference value) and 0.89 (Nyvad criteria as reference value).No significant differences were observed between the AUCs (p=0.30). Conclusion: The in-vitro use of the bioluminescence method showed good agreement with visual findings in assessment of the activity of a carious lesion in the area of occlusal and smooth surfaces.","PeriodicalId":19674,"journal":{"name":"Open Access Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82253050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Nail Histomycology, Onychochromobiology, and Fungal Thigmatropism

Open Access Journal of Science and Technology Pub Date : 2016-08-31 DOI: 10.11131/2016/101235

G. Piérard, S. Piérard

引用次数: 0

Effects of Hyperinsulinemia on Blood Pressure in High-Fat Diet Fed Rats 高胰岛素血症对高脂饮食大鼠血压的影响

Open Access Journal of Science and Technology Pub Date : 2016-08-31 DOI: 10.11131/2016/101239

Y.-Q. Tian, L. Peng, M. Li, J. Sun, X. Su, H. Yang, Y. Shen, Honggang Duan, G.-Z. Zhang, J.-J. Zhao, G.-W. Li, F.-H. Wang

{"title":"Effects of Hyperinsulinemia on Blood Pressure in High-Fat Diet Fed Rats","authors":"Y.-Q. Tian, L. Peng, M. Li, J. Sun, X. Su, H. Yang, Y. Shen, Honggang Duan, G.-Z. Zhang, J.-J. Zhao, G.-W. Li, F.-H. Wang","doi":"10.11131/2016/101239","DOIUrl":"https://doi.org/10.11131/2016/101239","url":null,"abstract":"Objective. To determine the mechanisms of \u0000hyperinsulinemia-induced elevation in blood pressure in rats. \u0000Methods. Male Sprague-Dawley rats were divided into \u0000normal diet (normal control) and high-fat diet group. After 36 \u0000weeks of feeding, high-fat diet group was further randomized into \u0000high-fat diet control group and streptozocin treatment group. \u0000Plasma insulin, endothelin-1(ET-1), norepinephrine (NE), \u0000aldosterone, and angiotensin II levels were measured. AT1 \u0000receptor, ET-1, and ETA receptor mRNA expression in the \u0000aorta was evaluated by real-time PCR. Results. After 9 \u0000months, systolic blood pressure (SBP) in high-fat diet group was \u0000higher than in the normal control group (155.4±1.6 \u0000vs.132.1±5.3 mmHg, P<0.01). The levels of plasma insulin \u0000in high-fat diet group were higher than in normal control group \u0000(116.63±12.31μIU/mL versus 29.10±4.92μIU/mL, P<0.01). High-fat diet group also \u0000exhibited higher plasma levels of ET-1, NE, aldosterone, and \u0000angiotensin II,and a lower 24 h urinary sodium excretion than the \u0000normal control group (P<0.05). The expression of AT1 \u0000receptor, ET-1 and ETA receptors in the aorta in the \u0000high-fat diet group was greater than in the normal control group \u0000(P<0.05). Streptozocin treatment reduced SBP by an average of \u000020.9±3.3 mmHg (P<0.05), and reduced insulin level from \u0000110.63±14.86μIU/mL to 39.45±6.59μIU/mL (P<0.01). The streptozocin group also \u0000showed a higher level of urine sodium excretion, and a lower level \u0000of plasma ET-1 and NE than in the high-fat diet control group \u0000(P<0.05). Conclusions. Hyperinsulinemia \u0000following high-fat diet is associated with an elevation in blood \u0000pressure. Sodium retention, increased plasma endothelin-1 and \u0000noradrenaline, as well as activation of renin-angiotensin system \u0000may all contribute to the blood pressure elevation.","PeriodicalId":19674,"journal":{"name":"Open Access Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90035691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Does Aluminium Trigger Breast Cancer 铝会引发乳腺癌吗

Open Access Journal of Science and Technology Pub Date : 2016-08-31 DOI: 10.11131/2016/101234

P. Jennrich, C. Schulte-Uebbing

引用次数: 3

A Preliminary Study to Investigate Relaxation and Sleep-Inducing Effects of Cedrol 雪松醇放松和诱导睡眠作用的初步研究

Open Access Journal of Science and Technology Pub Date : 2016-04-12 DOI: 10.11131/2016/101228

T. Komori, Yuko Tamura, M. Mitsui, J. Matsui, Daisuke Uei, S. Aoki

{"title":"A Preliminary Study to Investigate Relaxation and Sleep-Inducing Effects of Cedrol","authors":"T. Komori, Yuko Tamura, M. Mitsui, J. Matsui, Daisuke Uei, S. Aoki","doi":"10.11131/2016/101228","DOIUrl":"https://doi.org/10.11131/2016/101228","url":null,"abstract":"Background: Cedrol exhibits relaxation effects, and its scent may reduce stress, thereby contributing to various stressful life situation. However, cedrol has also been reported to induce sleep, which is dangerous by case. Therefore, studies are needed in order to determine whether the relaxation or sleep-inducing effects of cedrol are induced under stressful situation and also how to only attain the former. Method: A cross-over open study was conducted. Subjects were randomly divided into two groups (n = 3 per group). After one course of the Kraepelin test and additional dumbbell lifting before and after the test was performed, subjects entered the placebo or cedrol exposure room, and rested in a sitting position for 20 minutes. Electrocardiographic, electroencephalographic, and blood pressure measurements as well as VAS assessments were conducted. Result: In the present study, no stress response was clearly detected. However, the results of analyses with respect to individuals suggested that cedrol exhibited relaxation effects, and that it did not induce sleep under the conditions adopted in this study.","PeriodicalId":19674,"journal":{"name":"Open Access Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87271310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Study of Radiation Shielding Properties of selected Tropical Wood Species for X-rays in the 50-150 keV Range 选定热带树种对50-150 keV范围内x射线辐射屏蔽性能的研究

Open Access Journal of Science and Technology Pub Date : 2016-03-20 DOI: 10.11131/2016/101150

S. Aggrey-Smith, K. Preko, F. Owusu, J. Amoako

引用次数: 6