Archives in biomedical engineering & biotechnology最新文献_第3页

Microbial Decontamination of Fuel Tanks as a Mechanism of the Motion of an Aircraft through MIRCE Space 燃料箱的微生物净化作为飞机在MIRCE空间中运动的一种机制

Archives in biomedical engineering & biotechnology Pub Date : 2020-11-05 DOI: 10.33552/ABEB.2020.04.000598

J. Knezevic

引用次数: 1

Assessment of the Dependence of Mercury Intake into the Human Body on the Peculiarities of the Human Diet. Estimation of Intake of Small and Ultra-Low Doses of Mercury in the Human Body with Food 人体汞摄入量对人类饮食特性的依赖性评估。人体从食物中摄取小剂量和超低剂量汞的估计

Archives in biomedical engineering & biotechnology Pub Date : 2020-10-29 DOI: 10.33552/ABEB.2020.04.000597

M. Frontasyeva

{"title":"Assessment of the Dependence of Mercury Intake into the Human Body on the Peculiarities of the Human Diet. Estimation of Intake of Small and Ultra-Low Doses of Mercury in the Human Body with Food","authors":"M. Frontasyeva","doi":"10.33552/ABEB.2020.04.000597","DOIUrl":"https://doi.org/10.33552/ABEB.2020.04.000597","url":null,"abstract":"The purpose of this work was to estimate the amount of mercury intake in the human body when consuming the most common food products. The samples were taken on the territory of Russia without reference to the manufacturer in accordance with the principle of random sampling. Samples of basic foodstuffs, agricultural products, freshwater and marine fish were taken. Freshwater fish were caught throughout the Volga River, and samples of the main commercial fish species were selected. The analysis was carried out by instrumental neutron activation analysis and atomic absorption spectrometry with “cold steam”. Based on this analysis, food products with the highest and lowest concentrations of mercury were identified. The amount of food consumed by a person at different income levels, and on average for the regions of Russia, was estimated. The daily intake of mercury into the human body with different diets was calculated and it was shown that 50-60% of the total mercury comes from fish consumption. The accumulation of mercury in the muscles of fish caught in the upper and middle reaches, and delta of the Volga River was estimated. The features of mercury accumulation in the muscles of pike, perch and bream were revealed. A comparison of the actual intake of mercury in the human body with a safe daily dose according to FAO and who, which showed that the intake of mercury during food consumption in Russia is within physiologically safe limits. At the same time, a constant and characteristic intake of ultra-low doses of mercury for the entire population of Russia has been identified, the long-term consequences of which have not been practically studied.","PeriodicalId":72276,"journal":{"name":"Archives in biomedical engineering & biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49028948","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

Genetic Engineering and Its Application in Animal Breeding: Review 基因工程及其在动物育种中的应用综述

Archives in biomedical engineering & biotechnology Pub Date : 2020-10-06 DOI: 10.33552/ABEB.2020.04.000595

T. Alemneh

{"title":"Genetic Engineering and Its Application in Animal Breeding: Review","authors":"T. Alemneh","doi":"10.33552/ABEB.2020.04.000595","DOIUrl":"https://doi.org/10.33552/ABEB.2020.04.000595","url":null,"abstract":"Genetic engineering, also called genetic modification, is the direct manipulation of an organism’s genome using biotechnology. Genetic engineering alters the genetic makeup of an organism using techniques that remove heritable material, or that introduce DNA prepared outside the organism either directly into the host or into a cell that is then fused or hybridized with the host. This involves using recombinant nucleic acid (DNA or RNA) techniques to form new combinations of heritable genetic material, followed by the incorporation of that material either indirectly through a vector system or directly through micro-injection, macro-injection and micro-encapsulation techniques. Genetic improvement has played important roles in improving the desired traits’ efficiency of cattle, sheep, pigs and poultry. It has advanced applications in livestock breeding including increase animal production and productivity (meat, milk, wool), improve disease resistance, and biomedical applications (vaccine production). In livestock, knowledge of effects of specific genes and gene combinations on important traits could lead to their enhanced control to create new, more useful populations. Hence, the objectives of this review were to overview on the genetic engineering and its application in animal breeding, and to highlight the general concepts, techniques, types, importance and limitations of genetic engineering in animal breeding.","PeriodicalId":72276,"journal":{"name":"Archives in biomedical engineering & biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49190815","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 Ambivalent Mesenchyme-Pleomorphic Hyalinising Angiectatic Tumour 二价间充质多形性透明质瘤

Archives in biomedical engineering & biotechnology Pub Date : 2020-09-03 DOI: 10.33552/ABEB.2020.04.000594

Anu Bajaj

引用次数: 0

Effect of Aqueous Extract on Total Phenolic Content and Antimitotic Activity of Ficus Benghalensis root on Allium Cepa Root Meristamatic cells 水提物对孟加拉榕根总酚含量及对大蒜根分生细胞的抑制作用

Archives in biomedical engineering & biotechnology Pub Date : 2020-08-21 DOI: 10.33552/ABEB.2020.04.000593

R. Ahirrao

{"title":"Effect of Aqueous Extract on Total Phenolic Content and Antimitotic Activity of Ficus Benghalensis root on Allium Cepa Root Meristamatic cells","authors":"R. Ahirrao","doi":"10.33552/ABEB.2020.04.000593","DOIUrl":"https://doi.org/10.33552/ABEB.2020.04.000593","url":null,"abstract":"Objective: To evaluate aqueous extract of Ficus Benghalensis Linn. root for Total Phenolic Content and Antimitotic Activity on Allium Cepa Root Meristamatic cells. Materials and Methods: The Ficus benghalensis Linn. root was extracted with distilled water solvent by maceration method. The plant extract is subjected to study total Phenolic content method. The extract is also tested for their antimitotic activity in Allium cepa root Meristamatic cells. Result and Conclusion: The preliminary phytochemical screening of aqueous extract of Ficus Benghalensis Linn. root showed presence of high amount of total Phenolic content in 100 µg was found to be 13.72 µg of gallic acid equivalent. In Allium assay, aqueous extract of Ficus Benghalensis Linn. root (10 mg/ml) and methotrexate showed significant concentration dependant inhibitory influence against the dividing cells of Allium roots and decreased root growth and mitotic index as compared to control distilled water. The result indicated that antimitotic activity is due to presence of phenolic, alkaloids and flavonoids compounds in 10 mg/ml concentration of aqueous extract of Ficus Benghalensis root. Conclusion: On the basis of result, we concluded that, 10 mg/ml concentration of Ficus Benghalensis root shows good antimitotic activity on the Allium cepa root tip assay.","PeriodicalId":72276,"journal":{"name":"Archives in biomedical engineering & biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49042350","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

Perinatality and Childbirth as a Factor of Decompensation of Mental Illness: The Case of Depressive States in Newly Delivered Cameroonian Women 围产期和分娩是精神疾病失代偿的一个因素：一例新分娩的喀麦隆妇女的抑郁状态

Archives in biomedical engineering & biotechnology Pub Date : 2020-08-12 DOI: 10.33552/ABEB.2020.04.000592

G. Moyo

{"title":"Perinatality and Childbirth as a Factor of Decompensation of Mental Illness: The Case of Depressive States in Newly Delivered Cameroonian Women","authors":"G. Moyo","doi":"10.33552/ABEB.2020.04.000592","DOIUrl":"https://doi.org/10.33552/ABEB.2020.04.000592","url":null,"abstract":"Decompensation in psychiatry refers to the process by which a previously stable patient or predisposed individual may suddenly manifest symptoms or experience exacerbation of a sickness. This is prompted by factors which may be physiological, pathological, endogenous or exogenous, being responsible for psychic disequilibrium. Perinatality is characterized by multiple hormone variation and stress, which may constitute a risk for mental imbalances. The baby blues is a precocious and transient depressive state of the postpartum, which may occur as a borderline, signalling psychic decompensation. This study aims to investigate the phenomenon in women predisposed to mental disorders, having manifested the baby blues during immediate postpartum. In a case control study conducted in 2015 in two teaching hospitals of Yaoundé, Cameroon over four months, the Kennerley and Gath blues screening permitted to separate the group of “cases” from that of “controls”. After various analyses, women with psychological and psychiatric risk factors including: past history of depression (OR=6.8; p<0.001), past history of postpartum blues (OR=2.3; p=0.002), past history of other psychiatric illnesses (OR=10.21; p<0.01), family history of depression (OR=3.58; p<0.001), family history of other psychiatric illnesses (OR=4.39; p<0.001), current chronic diseases (OR=2.33, p-value<0.001), sickness or complication during pregnancy (OR=2.53, p-value<0.0211) were more susceptible to manifest the baby blues during immediate postpartum. Therefore, women with psychological predispositions, stand a risk of decompensation during the perinatal period including psychiatric disorders of postpartum. Preventive measures such as counselling, keen monitoring and treatment adjustment may help to prevent this phenomenon.","PeriodicalId":72276,"journal":{"name":"Archives in biomedical engineering & biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47799831","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: 8

The Physics of Phenomenological Structuralism 现象学结构主义的物理学

Archives in biomedical engineering & biotechnology Pub Date : 2020-07-31 DOI: 10.33552/ABEB.2020.04.000591

Paul C. Mocombe

引用次数: 0

Investigating the Structural and Magnetic Properties of Chitosan Coated CoFe2O4 Nanoparticles for Drug Delivery 壳聚糖包覆CoFe2O4纳米粒子的结构与磁性研究

Archives in biomedical engineering & biotechnology Pub Date : 2020-07-21 DOI: 10.33552/ABEB.2020.04.000589

W. Mdlalose

{"title":"Investigating the Structural and Magnetic Properties of Chitosan Coated CoFe2O4 Nanoparticles for Drug Delivery","authors":"W. Mdlalose","doi":"10.33552/ABEB.2020.04.000589","DOIUrl":"https://doi.org/10.33552/ABEB.2020.04.000589","url":null,"abstract":"Magnetic nanoparticles (MNPs) are currently explored for use in biomedical applications, such as in MRI, hyperthermia and drug delivery. In this study, CoFe 2 O 4 and its calcium-substituted derivative viz. CS-Ca 0.5 Co 0.5 Fe 2 O 4 MNPs were synthesised via the glycol-thermal method. Furthermore, these MNPs were coated with chitosan (CS) to improve their biodegradability and biocompatibility. The anti-cancer drug, 5-fluorouracil (5-FU) was then loaded onto these MNPs to yield CS-Ca 0.5 Co 0.5 Fe 2 O 4 -5FU and CS-Ca 0.5 Co 0.5 Fe 2 O 4 -5FU. XRD results confirmed a single-phased cubic spinel structure for all MNPs. The naked MNPs displayed an average crystalline size of ~9.32 nm, which increased up to 18.20 nm upon coating. The VSM measurements recorded saturation magnetization values (Ms) of up to 73.951 emu/g. Upon polymer-coating, the shielding effect of chitosan resulted in reduced Ms of up to 17.220 emu/g in CS-Ca 0.5 Co 0.5 Fe 2 O 4 MNPs. Release profiles were determined at pH 4.5 and 7.4 over a period of 72 hours. A faster release of the drug was noted at the acidic pH with an accumulative release of 91.00% in CS-CoFe2O4-5FU. Coupled with a strong recommendation for in vitro studies, these MNPs present as attractive candidates to complement current anti-cancer treatments.","PeriodicalId":72276,"journal":{"name":"Archives in biomedical engineering & biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45034871","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

Low-Pressure Plasma Treated Polyetheretherketone for Biomedical Application- A Comparative Study on Surface Chemistry and Storage Stability 医用低压等离子体处理聚醚酮表面化学与贮存稳定性的比较研究

Archives in biomedical engineering & biotechnology Pub Date : 2020-07-17 DOI: 10.33552/ABEB.2020.04.000588

Svea Petersen

{"title":"Low-Pressure Plasma Treated Polyetheretherketone for Biomedical Application- A Comparative Study on Surface Chemistry and Storage Stability","authors":"Svea Petersen","doi":"10.33552/ABEB.2020.04.000588","DOIUrl":"https://doi.org/10.33552/ABEB.2020.04.000588","url":null,"abstract":"The surface chemistry of different plasma-treated PEEK was characterized by contact angle measurements and X-ray photoelectron spectroscopy and the results of the different methods were compared. In addition, the physicochemical changes on the surface were documented and evaluated within the course of the aging/recovery of the surface within All plasma serious effects on the aromatic basic structure of the but at the same time increase the nitrogen and oxygen content of the surface up to a maximum of 28.2 % by means of oxygen plasma. of the process the surface energy to >63 mN/m what results in a clearly hydrophilic surface. Overall, three phases of hydrophobic recovery were observed, in two of which the degradation of functional groups was shown by a decreasing surface energy. The changes in the acid properties could be quantified by Berger’s method. The treatment in the oxygen plasma leads to an acidic surface with a Dshort value of 1.6. In nitrogen plasma, on the other hand, a slightly alkaline surface is generated with a shortened Berger parameter of -0.3. Regardless of the process gas and the initial nature of the surface, a slightly more acidic surface is formed during storage compared to the reference. The elemental composition of the plasma-treated PEEK appears to be relatively constant over the storage time, but with significant changes in the binding states. The double bonds induced during the plasma treatment are degraded and with them also the induced carboxylic acid.","PeriodicalId":72276,"journal":{"name":"Archives in biomedical engineering & biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49661798","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

Prerequisites for the Moisture Supply of Agricultural Land to Achieve Ecological Pure Crops in Azerbaijan 阿塞拜疆农业用地水分供应实现生态纯净作物的先决条件

Archives in biomedical engineering & biotechnology Pub Date : 2020-07-09 DOI: 10.33552/ABEB.2020.04.000587

Aliev Zh

引用次数: 0