scholarly journals Optimized expression of a hyperthermostable endoglucanase from Pyrococcus horikoshii in Arabidopsis thaliana

BioResources ◽  
2019 ◽  
Vol 14 (2) ◽  
pp. 2812-2826
Author(s):  
Xia Li ◽  
Xiaoyan Geng ◽  
Lu Gao ◽  
Yanfang Wu ◽  
Yongli Wang ◽  
...  

Manufacturing microbial cellulase in plants is an attractive strategy for the cost-effective production of cellulosic ethanol, especially the expression of thermostable cellulase, which causes no negative effects on plant growth and development. The beta-1,4-endogenous cellulase from Pyrococcus horikoshii (EGPh) is considered one of the most promising glycosyl hydrolase in the biofuel and textile industry for its hyperthermostability and its capability to hydrolyze crystalline celluloses, which has been researched extensively during recent years. In this study, the coding sequence of EGPh was expressed in Arabidopsis thaliana under the control of a CaMV35S promoter after codon optimization, with the addition of a eukaryotic Kozak sequence. The expression of EGPh caused no deleterious effects to the growth and development of transgenic A. thaliana. The heterologous EGPh showed relatively high activities, up to 111.69 and 13.35 U.mg-1 total soluble protein against soluble cellulose carboxymethyl cellulose (CMC) and insoluble microcrystalline cellulose (Avicel), respectively. The subcellular localization analysis showed that the EGPh protein was targeted to the plasma membrane and cell wall. Based on these results, it is proposed that EGPh is an ideal candidate for the commercial production of hyperthermostable endoglucanase using plants as biofactories.

2019 ◽  
Vol 1 (2) ◽  
pp. 150-152
Author(s):  
Muhammad Haikal Mohd Fodzi

In recent years, there have been an increasing of solid waste in Malaysia which gave negative effects towards the environments from various aspects such as human health, animal habitat, soil condition and space usage of landfill. This paper study the physical properties of disposable diapers waste which is one type of polymer as building materials. This waste is a fundamental property in reducing the cost effective materials, saving time and help increasing sustainability for the environment. The main objective of this study is to determine the density and porosity of the sample with the present of the disposable diapers waste. The presence of the waste as fillers in the mixture reduce the density of sample and create lightweight building materials.


2021 ◽  
Vol 9 (1) ◽  
pp. 24-29
Author(s):  
P. M. Skliarov ◽  
S. Y. Fedorenko ◽  
O. V. Onyshchenko ◽  
А. М. Pasternak ◽  
M. A. Lieshchova ◽  
...  

One of the key issues in solving the problem of mastitis is the therapy efficacy. It is important to find such treatments for animals that, along with pronounced antibacterial and other therapeutic properties, have no negative effects. Therefore, the aim of the work was to develop a method for treating goats with mastitis using ozonized materials – highly effective, environmentally friendly, and cost-effective drugs that have a positive effect on animal’s body and have no side effects. The treatment was carried out with a targeted program motivated by the principle of drug action. The item of the program «Antibiotic therapy» has been replaced by the use of ozone-containing preparations «OKO» (ozonated corn oil) and «Prozon» (ozonated corn oil + alcohol solution of propolis). It was found that for the treatment of goats using «Мastilex», the effectiveness of the therapy was 86.7%, its duration was 5.2 days, and the cost per animal was 55.38 UAH. When using «OKO» treatment efficacy was at the same level – 86.7%, its duration - longer by 0.4 days, and the cost of treating one animal was lower by 31.88 UAH. The use of «Prozon» made it possible to obtain a higher efficiency of treatment – 93.3%, to reduce its duration by 0.6 days and the cost per animal – by 31.3 UAH. The use of «Prozon» with ultraphonophoresis, provided a high therapeutic effect – at the level of 93.3%, a decrease in the duration of treatment – up to 3.7 days and the cost of treating one animal – up to 25.18 UAH. Thus, ozone therapy is becoming increasingly common in veterinary practice, including reproductive pathologies and, in particular, for the treatment of animals with mastitis. Ozone does not affect the quality of livestock products and therefore is safe for humans. Hence, the use of ozone makes it possible to replace antibiotics in the treatment plan of goats with mastitis without reducing the therapeutic and cost-effectiveness and can be recommended for practice.


Author(s):  
James F. Mancuso

IBM PC compatible computers are widely used in microscopy for applications ranging from control to image acquisition and analysis. The choice of IBM-PC based systems over competing computer platforms can be based on technical merit alone or on a number of factors relating to economics, availability of peripherals, management dictum, or simple personal preference.IBM-PC got a strong “head start” by first dominating clerical, document processing and financial applications. The use of these computers spilled into the laboratory where the DOS based IBM-PC replaced mini-computers. Compared to minicomputer, the PC provided a more for cost-effective platform for applications in numerical analysis, engineering and design, instrument control, image acquisition and image processing. In addition, the sitewide use of a common PC platform could reduce the cost of training and support services relative to cases where many different computer platforms were used. This could be especially true for the microscopists who must use computers in both the laboratory and the office.


Phlebologie ◽  
2007 ◽  
Vol 36 (06) ◽  
pp. 309-312 ◽  
Author(s):  
T. Schulz ◽  
M. Jünger ◽  
M. Hahn

Summary Objective: The goal of the study was to assess the effectiveness and patient tolerability of single-session, sonographically guided, transcatheter foam sclerotherapy and to evaluate its economic impact. Patients, methods: We treated 20 patients with a total of 22 varicoses of the great saphenous vein (GSV) in Hach stage III-IV, clinical stage C2-C5 and a mean GSV diameter of 9 mm (range: 7 to 13 mm). We used 10 ml 3% Aethoxysklerol®. Additional varicoses of the auxiliary veins of the GSV were sclerosed immediately afterwards. Results: The occlusion rate in the treated GSVs was 100% one week after therapy as demonstrated with duplex sonography. The cost of the procedure was 207.91 E including follow-up visit, with an average loss of working time of 0.6 days. After one year one patient showed clinical signs of recurrent varicosis in the GSV; duplex sonography showed reflux in the region of the saphenofemoral junction in a total of seven patients (32% of the treated GSVs). Conclusion: Transcatheter foam sclerotherapy of the GSV is a cost-effective, safe method of treating varicoses of GSV and broadens the spectrum of therapeutic options. Relapses can be re-treated inexpensively with sclerotherapy.


2019 ◽  
Vol 2 (4) ◽  
pp. 260-266
Author(s):  
Haru Purnomo Ipung ◽  
Amin Soetomo

This research proposed a model to assist the design of the associated data architecture and data analytic to support talent forecast in the current accelerating changes in economy, industry and business change due to the accelerating pace of technological change. The emerging and re-emerging economy model were available, such as Industrial revolution 4.0, platform economy, sharing economy and token economy. Those were driven by new business model and technology innovation. An increase capability of technology to automate more jobs will cause a shift in talent pool and workforce. New business model emerge as the availabilityand the cost effective emerging technology, and as a result of emerging or re-emerging economic models. Both, new business model and technology innovation, create new jobs and works that have not been existed decades ago. The future workers will be faced by jobs that may not exist today. A dynamics model of inter-correlation of economy, industry, business model and talent forecast were proposed. A collection of literature review were conducted to initially validate the model.


The choice of cost-effective method of anticorrosive protection of steel structures is an urgent and time consuming task, considering the significant number of protection ways, differing from each other in the complex of technological, physical, chemical and economic characteristics. To reduce the complexity of solving this problem, the author proposes a computational tool that can be considered as a subsystem of computer-aided design and used at the stage of variant and detailed design of steel structures. As a criterion of the effectiveness of the anti-corrosion protection method, the cost of the protective coating during the service life is accepted. The analysis of existing methods of steel protection against corrosion is performed, the possibility of their use for the protection of the most common steel structures is established, as well as the estimated period of effective operation of the coating. The developed computational tool makes it possible to choose the best method of protection of steel structures against corrosion, taking into account the operating conditions of the protected structure and the possibility of using a protective coating.


Author(s):  
W. C. Solomon ◽  
M. T. Lilly ◽  
J. I. Sodiki

The development and evaluation of brake pads using groundnut shell (GS) particles as substitute material for asbestos were carried out in this study. This was with a view to harnessing the properties of GS, which is largely deposited as waste, and in replacing asbestos which is carcinogenic in nature despite its good tribological and mechanical properties. Two sets of composite material were developed using varying particle sizes of GS as filler material, with phenolic resin as binder with percentage compositions of 45% and 50% respectively. Results obtained indicate that the compressive strength and density increase as the sieve size of the filler material decreases, while water and oil absorption rates increase with an increase in sieve size of GS particle. This study also indicates that the cost of producing brake pad can be reduced by 19.14 percent if GS is use as filler material in producing brake pad. The results when compared with those of asbestos and industrial waste showed that GS particle can be used as an effective replacement for asbestos in producing automobile brake pad. Unlike asbestos, GS-based brake pads are environmental friendly, biodegradable and cost effective.


2019 ◽  
Vol 2019 (4) ◽  
pp. 7-22
Author(s):  
Georges Bridel ◽  
Zdobyslaw Goraj ◽  
Lukasz Kiszkowiak ◽  
Jean-Georges Brévot ◽  
Jean-Pierre Devaux ◽  
...  

Abstract Advanced jet training still relies on old concepts and solutions that are no longer efficient when considering the current and forthcoming changes in air combat. The cost of those old solutions to develop and maintain combat pilot skills are important, adding even more constraints to the training limitations. The requirement of having a trainer aircraft able to perform also light combat aircraft operational mission is adding unnecessary complexity and cost without any real operational advantages to air combat mission training. Thanks to emerging technologies, the JANUS project will study the feasibility of a brand-new concept of agile manoeuvrable training aircraft and an integrated training system, able to provide a live, virtual and constructive environment. The JANUS concept is based on a lightweight, low-cost, high energy aircraft associated to a ground based Integrated Training System providing simulated and emulated signals, simulated and real opponents, combined with real-time feedback on pilot’s physiological characteristics: traditionally embedded sensors are replaced with emulated signals, simulated opponents are proposed to the pilot, enabling out of sight engagement. JANUS is also providing new cost effective and more realistic solutions for “Red air aircraft” missions, organised in so-called “Aggressor Squadrons”.


2013 ◽  
Vol 164 (9) ◽  
pp. 262-270 ◽  
Author(s):  
Peter Ammann

Is young growth tending successful in the Swiss Plateau region? Analysis and implications (essay) The effect of the cost-intensive young growth tending used up to the present in the region of the Swiss Plateau is analysed using different approaches. It is evident that young growth tending is not only ineffective with respect to diameter growth but even hinders stand development. Negative effects on quality from young growth tending are also recognised. This is often due to premature interventions in the natural processes of self-differentiation and subsequent systematic errors in the thinning. Furthermore, the effect of tending measures on the tree species composition is often overestimated because in the first 10 to 20 years of stand development, it is primarily the rejuvenation strategy and the site which are decisive. As an alternative course of action, tending concepts are proposed which rely on biological rationalisation and future tree thinning, to achieve future trees which are as vigorous as possible. These are not only more effective, but are also significantly less expensive.


2019 ◽  
Vol 25 (34) ◽  
pp. 3645-3663 ◽  
Author(s):  
Muhammad Ismail ◽  
Kalsoom Akhtar ◽  
M.I. Khan ◽  
Tahseen Kamal ◽  
Murad A. Khan ◽  
...  

: Water pollution due to waste effluents of the textile industry is seriously causing various health problems in humans. Water pollution with pathogenic bacteria, especially Escherichia coli (E. coli) and other microbes is due to the mixing of fecal material with drinking water, industrial and domestic sewage, pasture and agricultural runoff. Among the chemical pollutants, organic dyes due to toxic nature, are one of the major contaminants of industrial wastewater. Adequate sanitation services and drinking quality water would eliminate 200 million cases of diarrhea, which results in 2.1 million less deaths caused by diarrheal disease due to E. coli each year. Nanotechnology is an excellent platform as compared to conventional treatment methods of water treatment and remediation from microorganisms and organic dyes. In the current study, toxicity and carcinogenicity of the organic dyes have been studied as well as the remediation/inactivation of dyes and microorganism has been discussed. Remediation by biological, physical and chemical methods has been reviewed critically. A physical process like adsorption is cost-effective, but can’t degrade dyes. Biological methods were considered to be ecofriendly and cost-effective. Microbiological degradation of dyes is cost-effective, eco-friendly and alternative to the chemical reduction. Besides, certain enzymes especially horseradish peroxidase are used as versatile catalysts in a number of industrial processes. Moreover, this document has been prepared by gathering recent research works related to the dyes and microbial pollution elimination from water sources by using heterogeneous photocatalysts, metal nanoparticles catalysts, metal oxides and enzymes.


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