检索结果-南通市图书馆

Animal Nutrition 2018年第4期4卷 442-451页

作者： Collins P.Duodu Daniel Adjei-Boateng regina e.edziyie Nelson W.Agbo Godfred Owusu-Boateng Bodil K.Larsen Peter V.Skov Department of Fisheries and Watershed Management Faculty of Renewable Natural Resources Kwame Nkrumah University of Science and TechnologyPMB University Post Office Section for Aquaculture DTU Aqua Technical University of Denmark

The effects of processing by autoclaving(AC), soaking(SK), short-term fermentation(S-TF, 4 d) and longterm fermentation(L-TF, 14 d) on the nutritional composition, amino acid profile and some antinutrients were determined for cottonseed meal(CSM), groundnut meal(GNM) and groundnut husk(GH) in this study. After processing, crude protein content improved by 11% after L-TF, and crude lipid content 25%after SK for CSM; crude protein content improved by 27% after S-TF and L-TF, and crude lipid content 13%after SK for GNM. Soaking and fermentation were shown to significantly increase essential amino acid contents by 44%(SK, methionine) in CSM and 46% in GNM(L-TF, histidine). Phosphorus content was reduced by 59% in CSM and 57% in GNM by L-TF. All processing techniques, with the exception of AC,reduced phytic acid and gossypol contents in CSM and GNM. It was concluded that SK and fermentation were simple, cost-effective, and efficient ways to improve the nutritional value of the selected oilseed byproducts.

关键词： Amino acid Autoclaving Fermentation Proximate composition Soaking

Current knowledge on esophageal atresia

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2012年第28期18卷 3662-3672页

作者： Paulo Fernando Martins Pinheiro Ana Cristina Simoes e Silva regina Maria Pereira Department of Pediatric Surgery Odilon Behrens HospitalAvenida JoséBonifácioSão CristovãoBelo Horizonte31210-690 Minas GeraisBrazil Department of Pediatrics Faculty of MedicineFederal University of Minas GeraisBelo Horizonte30130-100 Minas GeraisBrazil

esophageal atresia (eA) with or without tracheoesophageal fistula (TeF) is the most common congenital anomaly of the esophagus. The improvement of survival observed over the previous two decades is multifactorial and largely attributable to advances in neonatal intensive care, neonatal anesthesia, ventilatory and nutritional support, antibiotics, early surgical intervention, surgical materials and techniques. Indeed, mortality is currently limited to those cases with coexisting severe life-threatening anomalies. The diagnosis of eA is most commonly made during the first 24 h of life but may occur either antenatally or may be delayed. The primary surgical correction for eA and TeF is the best option in the absence of severe malformations. There is no ideal replacement for the esophagus and the optimal surgical treatment for patients with long-gap eA is still contro-versial. The primary complications during the postoperative period are leak and stenosis of the anastomosis, gastro-esophageal reflux, esophageal dysmotility, fistula recurrence, respiratory disorders and deformities of the thoracic wall. Data regarding long-term outcomes and follow-ups are limited for patients following eA/TeF repair. The determination of the risk factors for the complicated evolution following eA/TeF repair may positively impact long-term prognoses. Much remains to be studied regarding this condition. This manuscript provides a literature review of the current knowledge regarding eA.

关键词： esophageal atresia Tracheoesophageal fistula esophageal stenosis Long-gap Gastro-esophageal reflux

Computer simulation of the coagulation of suspended solids——The applicability of the Müller–Smoluchowski theory

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of environmental Sciences 2016年第6期28卷 197-203页

作者： regina Wardzynska Beata Zaleska-Chróst Department of Chemistry University of Warmia and Mazury in Olsztyn

The results of studies carried out using a computer programme simulating the coagulation of suspensions containing spherical sol particles and spherical coagulant particles are *** influence of the degree of dispersion of the system on the coagulation reaction kinetics was investigated. The obtained results of kinetic studies were tested in the light of classical Müller–Smoluchowski equations. The influence of the physical properties of the coagulant,such as size, density and mass, on the coagulation rate was tested. It was found that within the range described in this paper, the rate of the simulated coagulation process fulfils both the kinetic equation of a first-order reaction, and the kinetic equation of a second-order *** the tested range, a significant influence of the mass and size of the coagulant on the coagulation rate was ascertained. The kinetic Müller–Smoluchowski dependence is fulfilled in a broader range of the degree of dispersion, when the coagulant particle mass and the sol particle mass are equal. When the particle mass increases with an increase in the particle radius, the coagulation rate increases faster that it would result from the Müller＇s dependence.

关键词： Aggregation Computer simulation Coagulation rate Sol

Nielsen coincidence theory on infra-solvmanifolds of Sol

在线全文

学校读者我要写书评

暂无评论

Science China Mathematics 2021年第8期64卷 1861-1884页

作者： Jong Bum Lee Karen regina Panzarin Department of Mathematics Sogang UniversitySeoul 121-742Korea Departamento de Matematica Universidade Federal de Sao CarlosSao CarlosSP 13565-905Brazil

We derive averaging formulas for the Lefschetz coincidence numbers,the Nielsen coincidence numbers and the Reidemeister coincidence numbers of maps on infra-solvmanifolds modeled on a connected and simply connected solvable Lie group of type(R).As an application,we compare our formula for the Nielsen coincidence numbers with a result of Jezierski(1992)for pairs of maps on some infra-solvmanifolds of *** all the pairs of self-maps of a nonorientable infra-solvmanifold of Sol,we determine the sets of all the possible values of the Nielsen coincidence numbers and the Reidemeister coincidence numbers.

关键词： averaging formula infra-solvmanifold Lefschetz coincidence number Nielsen coincidence number Reidemeister coincidence number Sol-geometry

Hydrogen Storage Performance During Underground Hydrogen Storage in Depleted Gas Reservoirs:A Review

在线全文

学校读者我要写书评

暂无评论

engineering 2024年第9期40卷 211-225页

作者： Lingping Zeng regina Sander Yongqiang Chen Quan Xie CSIRO energy MelbourneVIC 3168Australia Hydrogen Industry Mission CSIROMelbourneVIC 3168Australia CSIRO energy KensingtonWA 6151Australia Permanent Carbon Locking Future Science Platform CSIRO EnergyKensingtonWA 6151Australia WA School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityKensingtonWA 6151Australia

Hydrogen has emerged as a promising alternative to meet the growing demand for sustainable and renewable energy *** hydrogen storage(UHS)in depleted gas reservoirs holds significant potential for large-scale energy storage and the seamless integration of intermittent renewable energy sources,due to its capacity to address challenges associated with the intermittent nature of renewable energy sources,ensuring a steady and reliable energy *** the existing infrastructure and well-characterized geological formations,depleted gas reservoirs offer an attractive option for large-scale hydrogen storage ***,significant knowledge gaps regarding storage performance hinder the commercialization of UHS *** deliverability,hydrogen trapping,and the equation of state are key areas with limited *** literature review critically analyzes and synthesizes existing research on hydrogen storage performance during underground storage in depleted gas reservoirs;it then provides a high-level risk assessment and an overview of the techno-economics of *** significance of this review lies in its consolidation of current knowledge,highlighting unresolved issues and proposing areas for future *** these gaps will advance hydrogen-based energy systems and support the transition to a sustainable energy *** efficient and safe deployment of UHS in depleted gas reservoirs will assist in unlocking hydrogen’s full potential as a clean and renewable energy *** addition,this review aids policymakers and the scientific community in making informed decisions regarding hydrogen storage technologies.

关键词： Underground hydrogen storage Storage performance Hydrogen deliverability Hydrogen trapping Risk assessment Techno-economic analysis

environmental toxicant-induced maladaptive mitochondrial changes:A potential unifying mechanism in fatty liver disease?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Pharmaceutica Sinica B 2021年第12期11卷 3756-3767页

作者： regina D.Schnegelberger Anna L.Lang Gavin e.Arteel Juliane I.Beier Department of Pharmacology&Chemical Biology University of PittsburghPittsburghPA 15213USA Department of Neurology University of Miami Miller School of MedicineMiamiFL 33136USA Department of Medicine Division of GastroenterologyHepatology&NutritionUniversity of PittsburghPittsburghPA 15213USA Pittsburgh Liver Research Center University of PittsburghPittsburghPA 15213USA Department of environmental&Occupational Health University of PittsburghPittsburghPA 15213USA

Occupational and environmental exposures to industrial chemicals are well known to cause hepatotoxicity and liver ***,despite extensive evidence showing that exposure can lead to disease,current research approaches and regulatory policies fail to address the possibility that subtle changes caused by low level exposure to chemicals may also enhance preexisting *** recent years,the conceptual understanding of the contribution of environmental chemicals to liver disease has progressed *** are often target of toxicity of environmental toxicants resulting in multisystem disorders involving different cells,tissues,and ***,we review persistent maladaptive changes to mitochondria in response to environmental toxicant exposure as a mechanism of *** better understanding of the mechanism(s) and risk factors that mediate the initiation and progression of toxicant-induced liver disease,rational targeted therapy can be developed to better predict risk,as well as to treat or prevent this disease.

关键词： Organochlorines Metals Persistent organic pollutants TASH Liver disease Hepatotoxicity Mitochondrial maladaptation Mitohormesis

extract of Codiaeum luzonicum Merr. overcomes multidrug resistance in human colon cancer cells by modulating P-glycoprotein

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2022年第9期12卷 400-410页

作者： regina Joyce e.Ferrer Marc Justin C.Ong Sonia D.Jacinto Institute of Biology University of the Philippines DilimanQuezon CityMetro ManilaPhilippines

Objective:To investigate anti-multidrug resistance(MDR)activity and safety of the bioactive fraction(CL11)from Codiaeum luzonicum crude leaf ***:Cytotoxic activity of CL11 against MDR and nonresistant colon cancer cells was assessed using MTT *** of cell death was investigated by annexin V-propidium iodide staining,TUNeL,and JC-1 *** examine mechanism of action,the effect on the expression and function of the MDR-implicated protein P-glycoprotein was tested using Western blotting and calcein assay,***:CL11 had an eC50 of 0.18,1.03 and 38.52µg/mL against HCT-15,HCT-15/Dox and HCT116,*** was mediated by inhibition of P-glycoprotein function and *** mode of cell death involved mitochondrial membrane depolarization and was mostly non-apoptotic at eC50 concentrations against HCT-15 and HCT-15/***:Fraction CL11 of Codiaeum luzonicum induces nonapoptotic cell death in MDR cancer cells by overcoming MDR through inhibition of P-glycoprotein expression and function.

关键词： Natural product Leaf extract Codiaeum luzonicum MDR cancer P-gp inhibitor Colorectal cancer

Human Rights as Placeholders

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fudan Journal of the Humanities and Social Sciences 2015年第3期8卷 401-413页

作者： regina Kreide Institute of Political Science I Justus Liebig University Giessen Karl-Glockner Str. 21 E35394 Giessen Germany

Two prevailing ＂traditional＂ notions of human rights also cause the current skeptical mood concerning human rights. either human rights are seen in a morally exaggerated way as ＂trump cards＂ in political negotiations, or they are pruned back to a purely juridical level, absorbed into legal instances that accord them at most the rank of constitutional rights. In contrast to this, the author defends a political conception of human rights that overcomes the problems besetting both conceptions, but without having to sacrifice their critical, normative content or a realistic role for human rights in international politics. A political conception of human rights assumes, the author argues firstly, that human rights grow out of concrete experiences of injustice and are the product of political struggles. Human rights are, secondly, placeholders for the public thematization of oppression, humiliation, marginalization, and despotism. A third characteristic feature of a political conception of human rights is that human rights raise claims to a rule system that permits access to the freedoms and resources formulated by human rights. And finally, the obligations imposed by human rights are not duties of assistance but institutional duties to realize the conditions for exercising human rights. Human rights, the author concludes, can be ＂used＂ by any person to criticize existing ordering structures and can be activated for political purposes directed to the common good.

关键词： Moral and legal human rights Self-determination Criticism International politics

Comparative study of polyhydroxyalkanoates production from acidified and anaerobically treated brewery wastewater using enriched mixed microbial culture

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of environmental Sciences 2019年第4期31卷 137-146页

作者： Pravesh Tamang Rintu Banerjee Stephan K?ster regina Nogueira Institute for Sanitary engineering and Waste Management Leibniz Universitat Hannover Welfengarten 1D-30167 HannoverGermany Indian Institute of Technology Kharagpur Department of Agricultural and Food Engineering721302 KharagpurIndia

The production of polyhydroxyalkanoates(PHA) from wastewaters using microbial mixed cultures(MMC) has been attracting increased interest because of PHA's biodegradability characteristics. Production of PHA by an MMC enriched with PHA-accumulating bacteria was compared using anaerobically treated and acidified brewery wastewaters under various feeding strategies, namely pulse and batch feed addition. To obtain an enriched MMC, a sequencing batch reactor was inoculated with activated sludge fed with acetate and subjected to aerobic dynamic feeding. The enriched MMC was able to accumulate PHA up to 72.6% of cell dry weight(CDW) with pulse addition of acetate controlled by the dissolved oxygen(DO) concentration in the reactor. In a batch accumulation experiment with acetate,the PHA content achieved(28.5% CDW) was less than that of the pulse feeding strategy with the same amount of acetate(～2000 mg C/L). Using anaerobically treated and acidified brewery wastewater fed in pulses, the maximum PHA accumulated by the enriched MMC was similar for both wastewaters(45% CDW), in spite of the higher volatile fatty acid concentration in acidified brewery wastewater. The pulse feed addition controlled by the DO concentration was difficult to implement for wastewater as compared to acetate because the difference in DO concentration between substrate availability and depletion was low. For the batch addition of acidified wastewater, a slightly lower PHA content(39%CDW) was obtained. These results show that both brewery wastewaters can be utilized for PHA production with a similar maximum PHA storage capacity.

关键词： Polyhydroxyalkanoates PHA-accumulating bacteria Microbial mixed culture Brewery wastewater Aerobic dynamic feeding Pulse feeding and batch feeding

Promotional effects of Ru and Fe on Ni/ZrO_(2) catalyst during CO_(2) methanation:A comparative evaluation of the mechanism

在线全文

学校读者我要写书评

暂无评论

Journal of energy Chemistry 2023年第11期86卷 351-361,I0008页

作者： Jie Ren Feng Zeng Chalachew Mebrahtu Zhandong Wang regina Palkovits Institute for Technical and Macromolecular Chemistry RWTH Aachen UniversityWorringerweg 252074 AachenGermany Department of Thermal Science and energy engineering University of Science and Technology of ChinaHeifei 230026AnhuiChina State Key Laboratory of Materials-Oriented Chemical engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816JiangsuChina National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029AnhuiChina

Ni-based catalysts are widely investigated non-noble metal-based systems for CO_(2)***,their industrial application is still limited due to lower activity at low-temperature and catalyst *** a second metal such as Ru and Fe is considered as a successful strategy to overcome these challenges through alloy formation or the synergies provided by the interplay of two adjacent metallic ***,their promotional effect on the CO_(2)methanation mechanism under similar conditions has not been reported *** this work,Fe and Ru-promoted Ni/ZrO_(2)catalysts were investigated to evaluate their promotional effect on the *** Ni/Fe ratio was first optimized and a CO_(2)conversion rate of 37.7 mmolCO_(2)/(molNi+Fes)and 96.3%CH^(4)selectivity was obtained over the Ni_(0.8)Fe_(0.2)/ZrO_(2)*** comparison with Ni_(0.8)Fe_(0.2)/ZrO_(2),Ni_(0.8)Ru_(0.2)/ZrO_(2)prepared with the same composition showed higher activity and stability in CO_(2)*** results indicate alloys formation and H spillover for Ni_(0.8)Ru_(0.2)/ZrO_(2)to be responsible for ***,in situ DRIFTS studies evidenced the occurrence of both CO_(2)dissociative and associative pathways over Ni_(0.8)Ru_(0.2)/ZrO_(2)catalyst,while solely the CO_(2)associative pathway occurred for Ni_(0.8)Fe_(0.2)/ZrO_(2)

关键词： Ni-based catalyst Alloy formation H spillover CO_(2) methanation Methanation mechanism