Pub Date : 2018-07-19DOI: 10.31031/SBB.2018.02.000536
Halima Khatoon, Sharif Ahmad
Polyurethanes (PUs) are one of the most versatile and explored polymeric materials in which the urethane groups are the major repeating unit and can be synthesized by reacting di or polyisocyanates (hard segments) with di or polyols (soft segments) via catalyzed polymerization process [1]. A broad range of PU with variety of physical and mechanical properties can be tuned just by changing the ratio of soft and hard segments [2]. Thus, it consists of two phase structure in which the hard segments are embedded into the soft segments. Using different ratios of hard/soft segments, it can be fabricated according to their need of applications in rubber, fibers, films, paints, coatings, elastomers, foams, gels etc. [3] These many forms of PUs available to date are simple improvements of the invention of Dr. Otto Bayer and his coworkers in the 1930s [4]. The continuous improvements in the polyurethane made them a suitable and promising material for the incorporation in widespread applications. For the decades, it has been used in the field of biomedical due to their well-known properties such as good durability, high tensile strength, fatigue resistance, excellent biodegradability and biocompatibility [5]. Among the polymers like, silicone, polyvinyl chloride (PVC), polyethylene and poly tetra fluoro ethylene (PTFE), PUs are widely used in medical application due to their superior bio and hemo compatibility. On account of this very characteristic property, they have extensively been used in catheters, heart valves, vascular grafts, prostheses and blood coagulating devices [6].
{"title":"Polyurethane: A Versatile Scaffold for Biomedical Applications","authors":"Halima Khatoon, Sharif Ahmad","doi":"10.31031/SBB.2018.02.000536","DOIUrl":"https://doi.org/10.31031/SBB.2018.02.000536","url":null,"abstract":"Polyurethanes (PUs) are one of the most versatile and explored polymeric materials in which the urethane groups are the major repeating unit and can be synthesized by reacting di or polyisocyanates (hard segments) with di or polyols (soft segments) via catalyzed polymerization process [1]. A broad range of PU with variety of physical and mechanical properties can be tuned just by changing the ratio of soft and hard segments [2]. Thus, it consists of two phase structure in which the hard segments are embedded into the soft segments. Using different ratios of hard/soft segments, it can be fabricated according to their need of applications in rubber, fibers, films, paints, coatings, elastomers, foams, gels etc. [3] These many forms of PUs available to date are simple improvements of the invention of Dr. Otto Bayer and his coworkers in the 1930s [4]. The continuous improvements in the polyurethane made them a suitable and promising material for the incorporation in widespread applications. For the decades, it has been used in the field of biomedical due to their well-known properties such as good durability, high tensile strength, fatigue resistance, excellent biodegradability and biocompatibility [5]. Among the polymers like, silicone, polyvinyl chloride (PVC), polyethylene and poly tetra fluoro ethylene (PTFE), PUs are widely used in medical application due to their superior bio and hemo compatibility. On account of this very characteristic property, they have extensively been used in catheters, heart valves, vascular grafts, prostheses and blood coagulating devices [6].","PeriodicalId":21951,"journal":{"name":"Significances of Bioengineering & Biosciences","volume":"128 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86769069","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}
Pub Date : 2018-07-19DOI: 10.31031/sbb.2018.02.000535
Duygu Aslan
{"title":"A Case of Unrecognized Peripartum Cardiomyopathy Which Was Noticed During Emergency Cesarean Section","authors":"Duygu Aslan","doi":"10.31031/sbb.2018.02.000535","DOIUrl":"https://doi.org/10.31031/sbb.2018.02.000535","url":null,"abstract":"","PeriodicalId":21951,"journal":{"name":"Significances of Bioengineering & Biosciences","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82217186","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}
Pub Date : 2018-07-19DOI: 10.31031/SBB.2018.02.000537
Montasir Ahmed Elnour, A. Khalid, Fatima Penech
Modern pharmacology, however, relies on refined chemicals-either obtained from plants, or synthesized. This work investigated the anticancer, antioxidant and Cyto toxicity activities of N. lotus leaves citrate, N. lotus leaves not citrate, P. juliflora leaves commonly used as anti-inflammatory and Ant diabetic. All the plant parts were extracted using 80% methanol, the anticancer activity was examined by using MTT assay against Hela (Cervical Cancer) Cell Line. And determine their antioxidant activities by testing DPPH cytotoxicity using-(4, 5-Dimethyl thiazole-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT), filter and kept in dark, prepared freshly. The examined plants methanolic extracts of P. juliflora leaves is high activity against Hela (Cervical Cancer) Cell Line IC50 is 56.02μg/ml. The extract C N. lotus leaves citrate, N. lotus leaves not citrate has shown none active antiHela (Cervical Cancer) IC50 values 100, and >100μg/ml respectively. All the extracts revealed cytotoxicity activity not toxic in N. lotus leaves citrate, N. lotus leaves not citrate, P. juliflora leaves the inhibition percentage with (90.81,89.33074,86.47866) (73.17427,71.93975,60.17069) (74.93001,73.78714, 71.13981) respectively. The following plant parts showed highly potent scavenging activity against DPPH (above 80%); N. lotus leaves citrate, 88.78, While the following revealed a good activity against DPPH (between 60-79); N. lotus leaves not citrate, P. juliflora leaves with inhibition% are 77and 62.96 respectively.
{"title":"Selected Sudanese Medicinal Plants Induce Anticancer and Cytotoxic Effects in Cervical Cancer Cell Line","authors":"Montasir Ahmed Elnour, A. Khalid, Fatima Penech","doi":"10.31031/SBB.2018.02.000537","DOIUrl":"https://doi.org/10.31031/SBB.2018.02.000537","url":null,"abstract":"Modern pharmacology, however, relies on refined chemicals-either obtained from plants, or synthesized. This work investigated the anticancer, antioxidant and Cyto toxicity activities of N. lotus leaves citrate, N. lotus leaves not citrate, P. juliflora leaves commonly used as anti-inflammatory and Ant diabetic. All the plant parts were extracted using 80% methanol, the anticancer activity was examined by using MTT assay against Hela (Cervical Cancer) Cell Line. And determine their antioxidant activities by testing DPPH cytotoxicity using-(4, 5-Dimethyl thiazole-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT), filter and kept in dark, prepared freshly. The examined plants methanolic extracts of P. juliflora leaves is high activity against Hela (Cervical Cancer) Cell Line IC50 is 56.02μg/ml. The extract C N. lotus leaves citrate, N. lotus leaves not citrate has shown none active antiHela (Cervical Cancer) IC50 values 100, and >100μg/ml respectively. All the extracts revealed cytotoxicity activity not toxic in N. lotus leaves citrate, N. lotus leaves not citrate, P. juliflora leaves the inhibition percentage with (90.81,89.33074,86.47866) (73.17427,71.93975,60.17069) (74.93001,73.78714, 71.13981) respectively. The following plant parts showed highly potent scavenging activity against DPPH (above 80%); N. lotus leaves citrate, 88.78, While the following revealed a good activity against DPPH (between 60-79); N. lotus leaves not citrate, P. juliflora leaves with inhibition% are 77and 62.96 respectively.","PeriodicalId":21951,"journal":{"name":"Significances of Bioengineering & Biosciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81840708","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}
Pub Date : 2018-07-18DOI: 10.31031/SBB.2018.02.000534
Montasir Ahmed Elnour, Fatima Penech, Siddig Ibrahim, A. Khalid
Plants have been used fortreating various diseases of human beings and animalssince time immemorial. They maintain the health andvitality of individuals, and also cure diseases, includingcancer without causing toxicity. This work investigated the anticancer, antioxidant activities of roots, leaves, and stems commonly used as anti inflammatory and anti tumor. All the plant parts were extracted using 80% methanol, the anticancer activity was examined by using MTT assay against PC3 (Prostate Cancer) and determine their antioxidant activities by testing Effect ofPlant Methanol Extracts on suppressing whole blood Phagocytes and ROS Production and Metal chelating activities, filter and kept in dark, prepared freshly. The extract roots, DC has shown very high activity against PC3 (Prostate Cancer) IC50 values 24μg/ml. The extract leaves, and stems has shown none active anti against PC3 (Prostate Cancer) IC 50 values >100, and >100μg/ml respectively. All the extracts Effect ofPlant Methanol Extracts on suppressing whole blood Phagocytes and ROS Production has shown none active in all plants parts under study roots, leaves, and stems IC 50 values>200 . All the examined plant methanol extracts showed different levels of inhibition % for their metal chelating activity at concentration 50µg/mL. roots 25.99µg/m.
{"title":"Combretum Adenogonium Induce Anticancer and Antioxidant Effects in Prostate Cancer Cell Line","authors":"Montasir Ahmed Elnour, Fatima Penech, Siddig Ibrahim, A. Khalid","doi":"10.31031/SBB.2018.02.000534","DOIUrl":"https://doi.org/10.31031/SBB.2018.02.000534","url":null,"abstract":"Plants have been used fortreating various diseases of human beings and animalssince time immemorial. They maintain the health andvitality of individuals, and also cure diseases, includingcancer without causing toxicity. This work investigated the anticancer, antioxidant activities of roots, leaves, and stems commonly used as anti inflammatory and anti tumor. All the plant parts were extracted using 80% methanol, the anticancer activity was examined by using MTT assay against PC3 (Prostate Cancer) and determine their antioxidant activities by testing Effect ofPlant Methanol Extracts on suppressing whole blood Phagocytes and ROS Production and Metal chelating activities, filter and kept in dark, prepared freshly. The extract roots, DC has shown very high activity against PC3 (Prostate Cancer) IC50 values 24μg/ml. The extract leaves, and stems has shown none active anti against PC3 (Prostate Cancer) IC 50 values >100, and >100μg/ml respectively. All the extracts Effect ofPlant Methanol Extracts on suppressing whole blood Phagocytes and ROS Production has shown none active in all plants parts under study roots, leaves, and stems IC 50 values>200 . All the examined plant methanol extracts showed different levels of inhibition % for their metal chelating activity at concentration 50µg/mL. roots 25.99µg/m.","PeriodicalId":21951,"journal":{"name":"Significances of Bioengineering & Biosciences","volume":"263 1-2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78446407","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}
Pub Date : 2018-07-18DOI: 10.31031/sbb.2018.02.000533
S. J
{"title":"Increase in Bone Mass Density and Overall Bone Health Following High-Impact of Bio-field Energy Treated Vitamin D3inMG-63 Cell Line","authors":"S. J","doi":"10.31031/sbb.2018.02.000533","DOIUrl":"https://doi.org/10.31031/sbb.2018.02.000533","url":null,"abstract":"","PeriodicalId":21951,"journal":{"name":"Significances of Bioengineering & Biosciences","volume":"90 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89596540","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}
Pub Date : 2018-07-18DOI: 10.31031/SBB.2018.02.000532
P. Mukherjee, U. Chatterji
Epithelial-mesenchymal transition (EMT) is an important process during development by which epithelial cellsb acquire mesenchymal, fibroblast-like properties and show reduced intercellular adhesion and increased motility.The identification of epithelial-mesenchymal plasticity of breast cancer stem cells provided another level of complexity regarding development of strategies to eliminate these lethal seeds of breast cancer. In determining the association between Sox2, cell migration and expression of EMT markers, we found a persistently high expression of Twist1 and its apparent lack of EMT-like properties during migratory arrest of MDA-MB-231 cells, even after paclitaxel treatment of Sox2-silenced cells. The role of Sox2-dependent Twist1 in maintaining stemness was more prominent when Sox2 expression was high in brCSCs. It can be presumed now that Twist1 expression in presence or absence of Sox2 defines the precise mechanism underlying the possible role of Twist1 in crossroads of pluripotency and EMT of breast cancer stem cells. cancer stem cells comparison their normal counterpart, SOX2, TWIST1 and ABCG2, which are significantly upregulated in paclitaxel-treated triple negative breast tumors. This cascade topluripotency and stemness properties of breast CSCs, mammosphere migratory propensity. Silencing SOX2 with siRNA leads to the down regulation of ABCG2 and TWIST1, confirming that SOX2 governs the expression of these two major CSC markers. Further, paclitaxel treatment in conjunction to si-SOX2, led to i) increased chemosensitivity of breast CSCs to the drug, regulates epithelial-to-mesenchymal transition (EMT) and induces migratory arrest that sustains even after drug removal, simulating a post-chemo treatment condition in patients, and iii) reduces the sphere forming efficiency of CSCs, thus rendering them more susceptible to the anti-cancer effects of paclitaxel.
{"title":"A Twist in the Tale: TWIST1-SOX2 Axis Governs ABCG2-Mediated Paclitaxel Resistance of Breast Cancer Stem Cells","authors":"P. Mukherjee, U. Chatterji","doi":"10.31031/SBB.2018.02.000532","DOIUrl":"https://doi.org/10.31031/SBB.2018.02.000532","url":null,"abstract":"Epithelial-mesenchymal transition (EMT) is an important process during development by which epithelial cellsb acquire mesenchymal, fibroblast-like properties and show reduced intercellular adhesion and increased motility.The identification of epithelial-mesenchymal plasticity of breast cancer stem cells provided another level of complexity regarding development of strategies to eliminate these lethal seeds of breast cancer. In determining the association between Sox2, cell migration and expression of EMT markers, we found a persistently high expression of Twist1 and its apparent lack of EMT-like properties during migratory arrest of MDA-MB-231 cells, even after paclitaxel treatment of Sox2-silenced cells. The role of Sox2-dependent Twist1 in maintaining stemness was more prominent when Sox2 expression was high in brCSCs. It can be presumed now that Twist1 expression in presence or absence of Sox2 defines the precise mechanism underlying the possible role of Twist1 in crossroads of pluripotency and EMT of breast cancer stem cells. cancer stem cells comparison their normal counterpart, SOX2, TWIST1 and ABCG2, which are significantly upregulated in paclitaxel-treated triple negative breast tumors. This cascade topluripotency and stemness properties of breast CSCs, mammosphere migratory propensity. Silencing SOX2 with siRNA leads to the down regulation of ABCG2 and TWIST1, confirming that SOX2 governs the expression of these two major CSC markers. Further, paclitaxel treatment in conjunction to si-SOX2, led to i) increased chemosensitivity of breast CSCs to the drug, regulates epithelial-to-mesenchymal transition (EMT) and induces migratory arrest that sustains even after drug removal, simulating a post-chemo treatment condition in patients, and iii) reduces the sphere forming efficiency of CSCs, thus rendering them more susceptible to the anti-cancer effects of paclitaxel.","PeriodicalId":21951,"journal":{"name":"Significances of Bioengineering & Biosciences","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84143540","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}
Pub Date : 2018-07-16DOI: 10.31031/sbb.2018.02.000531
Phani Krishna P
{"title":"Multi-Targeted Approach to Treat Drug Resistant CML Using Natural Compounds: A Double Edged Sword","authors":"Phani Krishna P","doi":"10.31031/sbb.2018.02.000531","DOIUrl":"https://doi.org/10.31031/sbb.2018.02.000531","url":null,"abstract":"","PeriodicalId":21951,"journal":{"name":"Significances of Bioengineering & Biosciences","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75891790","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}
Pub Date : 2018-07-10DOI: 10.31031/SBB.2018.02.000530
Duygu Aslan
Thrombocytopenia is seen by 6-10% during pregnancy, with vast majority being mild dilutional thrombocytopenia occurring due to gestational physiology, and 2% of thrombocytopenia are seen in preeclampsia and HELLP syndrome. Herein, we aimed to emphasized that early diagnosis is important and anesthetic approach is guiding in prevention of the possible complications in the mother and infant, in a case with normal follow-up in which we observed that isolated mild thrombocytopenia was the early and unique symptom of HELLP syndrome in multiple pregnancy.
{"title":"Anesthetic Management in A Thrombocytopenic Patient with Multiple Pregnancy","authors":"Duygu Aslan","doi":"10.31031/SBB.2018.02.000530","DOIUrl":"https://doi.org/10.31031/SBB.2018.02.000530","url":null,"abstract":"Thrombocytopenia is seen by 6-10% during pregnancy, with vast majority being mild dilutional thrombocytopenia occurring due to gestational physiology, and 2% of thrombocytopenia are seen in preeclampsia and HELLP syndrome. Herein, we aimed to emphasized that early diagnosis is important and anesthetic approach is guiding in prevention of the possible complications in the mother and infant, in a case with normal follow-up in which we observed that isolated mild thrombocytopenia was the early and unique symptom of HELLP syndrome in multiple pregnancy.","PeriodicalId":21951,"journal":{"name":"Significances of Bioengineering & Biosciences","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73970929","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}
Pub Date : 2018-07-06DOI: 10.31031/SBB.2018.02.000528
Gwaza Ds, Dim Ni, Momoh Om
The study was carried out at Akpehe poultry farm, Makurdi,on the Tiv and the Fulani Nigerian local chicken ecotypes.The variability on clutch traits were estimated on 540 hens produced from the mating of 40 hens and 4 sires each for the Tiv and the Fulani local chicken ecotypes, randomly selected from rural populations. The hens were housed singly and hand mated. Daily egg production was recorded individually. The data was organized according to clutch size, clutch number, pause number and pause length. SAS procedure was used to analyze the variability on clutch traits within and between the ecotypes.Clutch size has the highest variability within the ecotype. Between the ecotypes, the Tiv ecotype showed higher variability in clutch traits than the Fulani ecotype. The higher variability in the Tiv ecotype was related to the large population of single inter breeding flock which renders genetic drift insignificant. The small reproductive population often left when the Fulani women disposed large numbers of matured birds from their flock when preparing for new settlements thereby accelerating genetic drift. This had driven the population of the Fulani ecotype towards genetic uniformity in clutch traits by reducing genetic variation overtime. The genetic diversity of the Fulani ecotype in clutch traits that could be used for current and future adaptation is been threatened.
{"title":"Effect of Genetic Drift versus Natural Selection on Clutch Traits in Two Populations of the Nigerian Local Chickens","authors":"Gwaza Ds, Dim Ni, Momoh Om","doi":"10.31031/SBB.2018.02.000528","DOIUrl":"https://doi.org/10.31031/SBB.2018.02.000528","url":null,"abstract":"The study was carried out at Akpehe poultry farm, Makurdi,on the Tiv and the Fulani Nigerian local chicken ecotypes.The variability on clutch traits were estimated on 540 hens produced from the mating of 40 hens and 4 sires each for the Tiv and the Fulani local chicken ecotypes, randomly selected from rural populations. The hens were housed singly and hand mated. Daily egg production was recorded individually. The data was organized according to clutch size, clutch number, pause number and pause length. SAS procedure was used to analyze the variability on clutch traits within and between the ecotypes.Clutch size has the highest variability within the ecotype. Between the ecotypes, the Tiv ecotype showed higher variability in clutch traits than the Fulani ecotype. The higher variability in the Tiv ecotype was related to the large population of single inter breeding flock which renders genetic drift insignificant. The small reproductive population often left when the Fulani women disposed large numbers of matured birds from their flock when preparing for new settlements thereby accelerating genetic drift. This had driven the population of the Fulani ecotype towards genetic uniformity in clutch traits by reducing genetic variation overtime. The genetic diversity of the Fulani ecotype in clutch traits that could be used for current and future adaptation is been threatened.","PeriodicalId":21951,"journal":{"name":"Significances of Bioengineering & Biosciences","volume":"107 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79342824","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}
Pub Date : 2018-07-05DOI: 10.31031/sbb.2018.02.000527
Dinh Tran Ngoc Huy
Under a one factor model, this paperwork estimates the impacts of the size of firms’ competitors in the stock investment industry on the market risk level, measured by equity and asset beta, of 6 listed companies in this category. This study identified that the risk dispersion level in this sample study could be minimized in case the competitor size kept as current approximate size (measured by equity beta var of 0,034). Beside, the empirical research findings show us that equity beta min value decreases from 0,247 to 0,244 when the size of competitor doubles. Last but not least, most of beta values are acceptable. Ultimately, this paper illustrates calculated results that might give proper recommendations to relevant governments and institutions in re-evaluating their policies during and after the financial crisis 2007-2011.
{"title":"Selecting Various Industrial Competitors Affect the Risk Level of Viet Nam Stock Investment Industry","authors":"Dinh Tran Ngoc Huy","doi":"10.31031/sbb.2018.02.000527","DOIUrl":"https://doi.org/10.31031/sbb.2018.02.000527","url":null,"abstract":"Under a one factor model, this paperwork estimates the impacts of the size of firms’ competitors in the stock investment industry on the market risk level, measured by equity and asset beta, of 6 listed companies in this category. This study identified that the risk dispersion level in this sample study could be minimized in case the competitor size kept as current approximate size (measured by equity beta var of 0,034). Beside, the empirical research findings show us that equity beta min value decreases from 0,247 to 0,244 when the size of competitor doubles. Last but not least, most of beta values are acceptable. Ultimately, this paper illustrates calculated results that might give proper recommendations to relevant governments and institutions in re-evaluating their policies during and after the financial crisis 2007-2011.","PeriodicalId":21951,"journal":{"name":"Significances of Bioengineering & Biosciences","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85412379","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：