Journal of Basic & Applied Sciences最新文献_第3页

Geodynamics of Alpine Belt and Caribbean Region: Plate - Tectonics and Plume - Tectonics 高山带和加勒比海地区的地球动力学:板块构造和地幔柱构造

Journal of Basic & Applied Sciences Pub Date : 2022-12-19 DOI: 10.29169/1927-5129.2022.18.13

V. Svalova

{"title":"Geodynamics of Alpine Belt and Caribbean Region: Plate - Tectonics and Plume - Tectonics","authors":"V. Svalova","doi":"10.29169/1927-5129.2022.18.13","DOIUrl":"https://doi.org/10.29169/1927-5129.2022.18.13","url":null,"abstract":"The origin and evolution of geological structures reflect lithosphere-asthenosphere interaction in the process of lithospheric plate movement. Mantle diapirs contribute significantly to the sedimentary basins formation in Alpine belt and Caribbean region. Mantle diapirs are the result of density inversion in the asthenosphere–lithosphere system in the periods of tectonomagmatic activations. Increasing heat flow and mantle diapirs on the phone of convergence of Africa and Eurasia in Alpine belt and North and South Americas in Caribbean region produce intercontinental seas in the Cenozoic. The analytical solution of the problem give possibility to find the critical parameters connecting the mantle flow dynamics with surface relief evolution. In Alpine belt, the mantle diapirs form new basins at the final stage of Africa–Eurasia collision in the Cenozoic. In the Caribbean region, great mantle diapir separates the North and South Americas in the Mesozoic, and then the diapir is the source for different smaller diapirs during the convergence of these continents in the Cenozoic. The Gulf of Mexico and Pre-Caspian Depression are connected with mantle diapirs upwelling and have common geological-geophysical features as very rich oil-gas and salt bearing structures. Geodynamics of Alpine belt and the Caribbean region is determined by plume - tectonics on background of plate - tectonics in these regions.","PeriodicalId":213934,"journal":{"name":"Journal of Basic & Applied Sciences","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132118989","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

An Overview of the Oscillating Water Column (OWC) Technologies: Issues and Challenges 振荡水柱(OWC)技术综述:问题与挑战

Journal of Basic & Applied Sciences Pub Date : 2022-12-08 DOI: 10.29169/1927-5129.2022.18.11

Sadegh Khaleghi, T. Lie, C. Baguley

引用次数: 0

Earth’s Temperature: The Effect of the Sun, Water Vapor, and CO2 地球温度:太阳、水蒸气和二氧化碳的影响

Journal of Basic & Applied Sciences Pub Date : 2022-11-23 DOI: 10.29169/1927-5129.2022.18.10

H. D. Lightfoot, Gerald Ratzer, Article Info

引用次数: 2

Formulation and Characterization of Poly (Acrylic Acid)- Co-Chitosan Nanoparticles as pH-Thermo-Responsive System to Control Delivery 聚丙烯酸-壳聚糖纳米颗粒ph -热响应系统的制备及表征

Journal of Basic & Applied Sciences Pub Date : 2022-11-15 DOI: 10.29169/1927-5129.2022.18.09

Abir Derbali, D. Bouzid, Olivier Boyron

{"title":"Formulation and Characterization of Poly (Acrylic Acid)- Co-Chitosan Nanoparticles as pH-Thermo-Responsive System to Control Delivery","authors":"Abir Derbali, D. Bouzid, Olivier Boyron","doi":"10.29169/1927-5129.2022.18.09","DOIUrl":"https://doi.org/10.29169/1927-5129.2022.18.09","url":null,"abstract":"The present study aims to develop a pH thermosensitive nanocarriers as a drug delivery system to better controll drug release. Nanoparticles was developed by the combination of smart polymers, chitosan and poly(acrylic acid) were chosen as biodegradable vectors to encapsulate and transport the drug. The used method was based on the polymerization of acrylic acid using reticulated chitosan as a template. Analysis of particle size, Zeta potential, and size distribution revealed that most of the resulting nanoparticles had an average diameter less than 100nm, with a high Zeta potentiel about -29.7 mV and a narrow size distribution. In addition, the developed system showed an encapsulation efficiency around 97%. In vitro release test was achieved using different buffer solutions with pH equal to 1.2, 3.6, 4.2, 4.8, 6.8 and 7.4. The release profiles showed that nanoparticles provide drug protection at different pH values. They responded at pH = 3.6 and provided sustained controlled release of up to 62.62% over 8 hours. The results reveal that the prepared nanoparticles can be used as drug delivery carriers. They can improve therapeutic efficiency of the drugs used in the treatment of inflamed tissues where the pH is around 3.6 as in the Crohn disease.","PeriodicalId":213934,"journal":{"name":"Journal of Basic & Applied Sciences","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122367198","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

Prediction of Surface Roughness of U71Mn Steel Milling Based on RBF Neural Network 基于RBF神经网络的U71Mn钢铣削表面粗糙度预测

Journal of Basic & Applied Sciences Pub Date : 2022-10-17 DOI: 10.29169/1927-5129.2022.18.08

Zhuang Shudong, Y. Hang, L. Xiyu, Jenny Sama Kevin

引用次数: 0

Vegetation Composition, Forage Biomass and Soil Seed Bank of a Continuously Grazed Rangeland Site in Tropical Sub-Humid Environment, Tanzania 坦桑尼亚热带亚湿润环境连续放牧草地植被组成、牧草生物量和土壤种子库

Journal of Basic & Applied Sciences Pub Date : 2022-06-20 DOI: 10.29169/1927-5129.2022.18.07

Tito Eleutery Mdegela, D. Maleko, G. Msalya, E. Mtengeti

{"title":"Vegetation Composition, Forage Biomass and Soil Seed Bank of a Continuously Grazed Rangeland Site in Tropical Sub-Humid Environment, Tanzania","authors":"Tito Eleutery Mdegela, D. Maleko, G. Msalya, E. Mtengeti","doi":"10.29169/1927-5129.2022.18.07","DOIUrl":"https://doi.org/10.29169/1927-5129.2022.18.07","url":null,"abstract":"Most rangelands along the agro-pastoral villages of Tanzania are yearlong grazed and at various states of degradation. These rangelands contribute to over 60% of the meat and milk production in the country. An inventory was conducted to assess the status of grazing resources in a typical agro-pastoral village of Tanzania having communal rangelands. Systematic random sampling techniques were employed whereby line transects and quadrat frame were used following standard procedures to collect samples and undertake field measurements for both vegetation and soil parameters. The vegetation cover for desirable pasture species, undesirable pasture species and litter were 67.7%, 10.5% and 9.4%, respectively. The soil bare patches covered 12.3 % of the surveyed rangeland site. The most dominant grass species were Enteropogon macrostachyus, Bothriochloa insculpta and Heteropogon contortus. Forage dry matter (DM) yield was 806.8 kg DM/ha. Tree density was 1500 trees/ha and the total canopy cover was 63.49%. Combretum collinum was the most dominant tree species. Soil bulk density, pH, organic carbon, nitrogen, phosphorus and potassium were 1.4 g/cm3, 6.3%, 1.14%, 0.09%, 0.89 mg/kg and 0.33 g/kg, respectively. A total of 11 dicotyledonous species mainly forbs and 9 monocotyledonous species including two perennial grasses were revealed from the incubated soil samples. The findings of this study demonstrate that the communal grazing areas have low pasture productivity, poor soil seed-bank and high cover of woody plants mainly bushes. In order, to improve forage biomass at the study site and elsewhere with similar environments selective bush clearing and re-seeding should be considered.","PeriodicalId":213934,"journal":{"name":"Journal of Basic & Applied Sciences","volume":"48 11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130679193","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

Structural and Dielectric Properties of Ba-Doped BNT Ceramics 掺钡BNT陶瓷的结构和介电性能

Journal of Basic & Applied Sciences Pub Date : 2022-04-05 DOI: 10.29169/1927-5129.2022.18.06

Khushboo Thapa, Priyanka Thankur, Navdeep Sharma, Sanjeev K. Sharma, Asad Ali, A. Zaman, M. Lal

引用次数: 6

Community Structure, Conservation Status, and Functional Groups of Bird Species in Mbeya Range Forests, Tanzania 坦桑尼亚Mbeya山脉森林鸟类群落结构、保护现状及功能类群

Journal of Basic & Applied Sciences Pub Date : 2022-03-07 DOI: 10.29169/1927-5129.2022.18.05

Fredrick Ojija, N. M. Manyanza

{"title":"Community Structure, Conservation Status, and Functional Groups of Bird Species in Mbeya Range Forests, Tanzania","authors":"Fredrick Ojija, N. M. Manyanza","doi":"10.29169/1927-5129.2022.18.05","DOIUrl":"https://doi.org/10.29169/1927-5129.2022.18.05","url":null,"abstract":"The Mbeya range forest reserves (MRFRs) of the southern highland of Tanzania are an important hotspot for biodiversity conservation. However, its avian biodiversity has hardly ever been studied. Thus, for the first time, this study presents the inventory of bird species from MRFRs, demonstrating community structure, functional group, and conservation status. The study was carried out in four forest areas (i.e., Idugumbi, Kawetire, Mount Loleza, and Muvwa) within the MRFRs. The bird survey was carried out monthly between March 2018 and June 2018. Standardised line and point counts, as well as mist netting, were used to collect data. A total of 1052 individual birds, representing 41 species and 22 families, were recorded. Relative abundance, Shannon and Simpson species diversity, and species richness were high in Idugumbi forest and lowest in Kawetire forest. Species diversity differed significantly between the four forest areas. Moreover, Idugumbi and Muvwa had relatively low species composition dissimilarity compared to other forest areas. Different bird functional groups, i.e., insectivores, granivores, nectarivores, carnivores, frugivores, or combinations of these, were recorded in MRFRs. The insectivores were twice as abundant as granivores and nectarivores. The multi–layered vegetation structure of native plants in the Idugumbi forest appears to benefit and contribute to bird communities. The study reveals that MRFRs are an important hotspot for bird species that require ecological monitoring and protection. As a result, appropriate land–use practices near MRFRs should be followed to ensure long–term avian conservation.","PeriodicalId":213934,"journal":{"name":"Journal of Basic & Applied Sciences","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129664401","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

Glubran- 2 Acrylic Glue for Percutaneous Embolization of Intramuscular Vascular Malformations of Lower Limbs: Preliminary Experience 2 -丙烯胶经皮栓塞治疗下肢肌内血管畸形的初步经验

Journal of Basic & Applied Sciences Pub Date : 2020-11-13 DOI: 10.29169/1927-5129.2020.16.11

F. Stillo, F. Ruggiero, R. Mattassi, B. Amato, R. Compagna

{"title":"Glubran- 2 Acrylic Glue for Percutaneous Embolization of Intramuscular Vascular Malformations of Lower Limbs: Preliminary Experience","authors":"F. Stillo, F. Ruggiero, R. Mattassi, B. Amato, R. Compagna","doi":"10.29169/1927-5129.2020.16.11","DOIUrl":"https://doi.org/10.29169/1927-5129.2020.16.11","url":null,"abstract":"Aims: Vascular anomalies (VA) represent a heterogeneous and rare group of pathologies. Ethanol is considered the gold standard in endovascular embolization procedures, but its use exposes to the risk of major complications. Glubran-2 is a new glue agent, used mainly for catheter-based cerebral embolization. Our study reported preliminary experiences with a group of 13 patients treated for intramuscular VA of limbs with Glubran-2 solution by venous retrograde percutaneous embolization. \u0000Methods: Through an Angiographic CT/MRI we selected 13 adult patients (6 males, 7 females), seven with limb AVMs and six with limb VM, all intramuscular. All patients reported pain and functional limitation as presenting symptoms. Glubran-2 was injected under fluoroscopic guidance through multiple percutaneous punctures, to cover the entire extension of the lesion. \u0000Results: In the 6-month follow-up, all patients reported pain reduction, rapid recovery of function, favourable post-operative course and absence of major complications. Angio-RMI control was performed in all patients. It showed Glubran-2 in place and the exclusion of the malformation. Percutaneous retrograde embolization with Glubran-2 permanently excluded muscle malformations from circulation: only one embolization procedure was, in 12 of 13 patients, sufficient for a complete and definitive treatment. Rapid polymerization of Glubran-2 glue, after its injection, cancelled the risk of pulmonary embolisms and skin necrosis. Secondary surgical removal was never necessary to complete treatment of these deep muscle malformations. \u0000Conclusions: This study showed that the percutaneous embolization technique with Glubran-2 glue can be considered favorable in the treatment of the VA of the limbs for its easier handling and promising outcome.","PeriodicalId":213934,"journal":{"name":"Journal of Basic & Applied Sciences","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121071579","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

Population Data of D6S1043, Penta D and Penta E Loci in Calabria (South of Italy) 卡拉布里亚(意大利南部)D6S1043、D、E等基因座的种群数据

Journal of Basic & Applied Sciences Pub Date : 2020-11-02 DOI: 10.29169/1927-5129.2020.16.10

Barbaro, G. Falcone, A. La Marca

引用次数: 1

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