Effects of Gibberellic Acid and an Inhibitor of Gibberellin Action on Suckering from Aspen Root Cuttings

1973 ◽  
Vol 3 (1) ◽  
pp. 39-44 ◽  
Author(s):  
George A. Schier
Keyword(s):  
Gibberellic Acid ◽  
Early Stage ◽  
Shoot Elongation ◽  
Shoot Development ◽  
Endogenous Gibberellin ◽  
Trembling Aspen ◽  
Stage Of Development

The effect of gibberellic acid (GA3) on suckering from trembling aspen (Populustremuloides Michx.) roots was determined by treating two kinds of root cuttings, one that produced suckers from primordia newly initiated or in an early stage of development (EP roots) and another that produced suckers primarily from relatively large, visible primordia (LP roots). Also investigated was the effect of an inhibitor of gibberellin action, a substituted pyrimidine, on outgrowth of suckers from LP roots. All concentrations (25–400 mg/l) of GA3 stimulated shoot outgrowth from LP roots. In contrast, GA3 inhibited shoot development in EP roots. The role of endogenous gibberellin in sucker outgrowth was indicated by the inhibition of shoot elongation by the inhibitor of gibberellin action.

The Significance of Blockchain Technology in Digital Transformation of Logistics and Transportation

2020 ◽  
Vol 12 (1) ◽  
pp. 1-20 ◽  
Author(s):  
Zvonko Merkaš ◽  
Davor Perkov ◽  
Vesna Bonin
Keyword(s):  
Early Stage ◽  
Digital Transformation ◽  
Theory Building ◽  
Comprehensive Overview ◽  
Blockchain Technology ◽  
Stage Of Development ◽  
Multiple Case ◽  
Multiple Case Studies ◽  
Business Process Optimization

The purpose of this article is to identify blockchain's role in achieving logistic objectives, with the aim of pointing out the significance of blockchain technology in the digital transformation of logistics and transportation. Implementation of the blockchain technology in combination with IoT elements in logistics and transportation contributes to business process optimization, supply chain traceability and transparency, and significant financial savings. There are limitations as blockchain is at a relatively early stage of development with most projects. Therefore, the approach of theory building from multiple case studies was used. The article provides a comprehensive overview of current blockchain initiatives and use-cases. This article is believed to be the first to address the role of blockchain technology in achieving logistics objectives. Results from this research indicate that blockchain technology contributes to the achievement of logistics objectives.

The Energy Consumption-Environmental Quality Nexus in BRICS Countries: The Role of Outward Foreign Direct Investment (OFDI)

2021 ◽  
Author(s):  
Saileja Mohanty ◽  
Narayan Sethi
Keyword(s):  
Developing Countries ◽  
Foreign Direct Investment ◽  
Energy Consumption ◽  
Environmental Quality ◽  
Direct Investment ◽  
Early Stage ◽  
Outward Foreign Direct Investment ◽  
Stage Of Development ◽  
Long Run

Abstract This paper examines the role of outward foreign direct investment (OFDI) on energy consumption and environmental quality in BRICS from 1990 to 2019. We use cross-sectional dependence (CSD) and the Pesaran-Yamagata slope homogeneity for the diagnostic test. After confirming the diagnosis test, we employ CIPS and CADF second generation panel unit root test, which confirms that all elements are stationary at first difference. The Pooled Mean Group (PMG), Westerlund cointegration, two-step GMM, panel FMOLS and DOLS model have been used to determine the short term and long-term association among the variables. The cointegration and PMG results confirm that the short-run and long-run association exists among the considered variables. The GMM and DOLS results reveal that developing countries produced environmental pollution at the early stage of development and checked in the long run. The empirical results hold up the EKC hypothesis, which implies that OFDI and energy consumption help expand greener technology to host countries' environmental improvement in the long run and confirm that an inverted U-shaped linkage exists. Hence, the study suggests that developing countries should pay more attention to sustainable development and technological development that encourages more eco-friendly and environment-friendly technology. To frame the profitable strategies, governments of emerging countries should inspire public-private partnerships to circulate the environmental consciousness, guideline for energy efficiency, and generate a pollution-free environment.

scholarly journals Role of the ducktal secretion dysfunction in the pathogenesis of chronic pancreatitis

2020 ◽  
Vol 17 (1) ◽  
pp. 122-128
Author(s):  
L. A. Mozheiko
Keyword(s):  
Chronic Pancreatitis ◽  
Rheological Properties ◽  
Pancreatic Secretion ◽  
Transport Mechanism ◽  
Early Stage ◽  
Fluid Secretion ◽  
Scientific Data ◽  
Ductal System ◽  
Stage Of Development

The review presents an analysis of current scientific data on the role of ductal secretion disorders in the pathogenesis of chronic pancreatitis. It is shown that under the influence of alcohol or other provoking factors, the CFTR transport mechanism of duct cells undergoes damage, which leads to the decrease in the bicarbonate and fluid secretion. Dehydration and acidification contribute to the hyperconcentration of protein and mucous components of pancreatic secretion and to the change in its rheological properties, which complicates further transport through the ductal system. Current conditions are favorable for the formation of mucoprotein plugs and the ductal obstruction that may have an important role in the pathogenesis of chronic pancreatitis at the early stage of development of the disease.

scholarly journals The Potential Role of Direct Air Capture in the German Energy Research Program—Results of a Multi-Dimensional Analysis

Energies ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 3443 ◽  
Author(s):  
Peter Viebahn ◽  
Alexander Scholz ◽  
Ole Zelt
Keyword(s):  
Dimensional Analysis ◽  
Research Program ◽  
Large Scale ◽  
Potential Role ◽  
Early Stage ◽  
Energy Research ◽  
Stage Of Development ◽  
Direct Air Capture ◽  
Air Capture

A significant reduction in greenhouse gas emissions will be necessary in the coming decades to enable the global community to avoid the most dangerous consequences of man-made global warming. This fact is reflected in Germany’s 7th Federal Energy Research Program (EFP), which was adopted in 2018. Direct Air Capture (DAC) technologies used to absorb carbon dioxide (CO2) from the atmosphere comprise one way to achieve these reductions in greenhouse gases. DAC has been identified as a technology (group) for which there are still major technology gaps. The intention of this article is to explore the potential role of DAC for the EFP by using a multi-dimensional analysis showing the technology’s possible contributions to the German government’s energy and climate policy goals and to German industry’s global reputation in the field of modern energy technologies, as well as the possibilities of integrating DAC into the existing energy system. The results show that the future role of DAC is affected by a variety of uncertainty factors. The technology is still in an early stage of development and has yet to prove its large-scale technical feasibility, as well as its economic viability. The results of the multi-dimensional evaluation, as well as the need for further technological development, integrated assessment, and systems-level analyses, justify the inclusion of DAC technology in national energy research programs like the EFP.

scholarly journals To the origins of creation of Beijing Ballet School. Olga Aleksandrovna Ilyina

2020 ◽  
pp. 25-35
Author(s):  
Tianjiao Zhang
Keyword(s):  
Significant Contribution ◽  
Early Stage ◽  
Strong Basis ◽  
Ballet Dancers ◽  
Stage Of Development ◽  
The Subject ◽  
Classical Ballet ◽  
Education In China ◽  
Chinese Teaching

The subject of this research is the first stage of creation of Beijing Ballet School, while the object is the pedagogue of the Moscow State Academy of Choreography O. A. Ilyina. The author underlines her contribution to the creation of the first professional system of education in China. The role of Soviet ballet masters and pedagogues, who carefully examines the peculiarities of Chinese teaching technique is highlighted. The Russian system of choreographic education with its accumulated valuable theoretical and pedagogical experience laid the foundation for establishment of the system of preparing ballet dancers in China, creating a strong basis for the development of Chinese professional classical ballet. The novelty of this work consist in the analysis of Olga Ilyina’s impact upon the early stage of development of Chinese ballet. The author explores and assesses her versatile activity in China – initially, in creation of Beijing Ballet School, and later, as a pedagogy who made a significant contribution to preparation of national ballet dancers. The scientific novelty is substantiated by the fact that the activity of Olga Ilyina in China has not been previously a subject of a separate research, although she played a significant role, along with other pedagogues of the Moscow State Academy of Choreography under the Bolshoi Theatre, in creation of the first professional ballet school in Beijing.

scholarly journals Early Health Economic Modelling – Optimizing Development for Medical Device Developers? Comment on "Problems and Promises of Health Technologies: The Role of Early Health Economic Modeling"

2019 ◽  
Author(s):  
Conor Teljeur ◽  
Máirín Ryan
Keyword(s):  
Health Economic ◽  
Early Stage ◽  
Data Gathering ◽  
Economic Modeling ◽  
Economic Modelling ◽  
Negative Consequences ◽  
Health Technologies ◽  
Stage Of Development ◽  
Early Health

Abstract This commentary considers the positive and negative consequences of early economic modelling and explores potential future directions. Early economic modelling offers device manufacturers an opportunity to assess the potential value of an innovation at an early stage of development. Early modelling can direct resources into potentially viable technologies and reduce investment in technologies with limited prospect of value. However, it is unclear whether early modelling is sufficiently specific to identify innovations with low value. It may be that early modelling is more useful for directing data gathering to reduce decision uncertainty. Early modelling is of primary benefit to the manufacturer and may have both positive and negative consequences for reimbursement processes that should be considered

scholarly journals The role of Data-Independent Acquisition for Glycoproteomics

2020 ◽  
pp. mcp.R120.002204
Author(s):  
Zilu Ye ◽  
Sergey Y Vakhrushev
Keyword(s):  
Early Stage ◽  
Label Free ◽  
Basic Principles ◽  
Post Translational Modifications ◽  
Full Characterization ◽  
Data Independent Acquisition ◽  
Stage Of Development ◽  
Free Quantification

Data independent acquisition (DIA) is now an emerging method in bottom-up proteomics and capable of achieving deep proteome coverage and accurate label-free quantification. However, for post-translational modifications (PTM), such as glycosylation, DIA methodology is still in the early stage of development. The full characterization of glycoproteins requires site specific glycan identification as well as subsequent quantification of glycan structures at each site. The tremendous complexity of glycosylation represents a significant analytical challenge in glycoproteomics. This review focuses on the development and perspectives of DIA methodology for N- and O- glycoproteomics and posits that DIA-based glycoproteomics could be a method of choice to address some of the challenging aspects of glycoproteomics. First, the current challenges in glycoproteomics and the basic principles of DIA is briefly introduced. DIA based glycoproteomics is then summarized and described into four aspects based on the actual samples. Lastly, we discussed the important challenges and future perspectives in the field. We believe that DIA can significantly facilitate glycoproteomic studies and contribute to the development of future advanced tools and approaches in the field of glycoproteomics.

scholarly journals Metabolites changes after pre-bloom gibberellic acid (GA3) application for inducing seedless grape

Plant Omics ◽  
2020 ◽  
pp. 94-103
Author(s):  
Sung Min Jung ◽  
Youn Young Hur
Keyword(s):  
Gibberellic Acid ◽  
Early Stage ◽  
Dehydroascorbic Acid ◽  
Grape Berry ◽  
Full Bloom ◽  
Grape Berries ◽  
Seedless Grape ◽  
Early Flower ◽  
Sampling Times

Gibberellic acid (GA3) treatment is a useful method for inducing seedless grape berries in the seeded grape bunch before flowering. In this work, we applied 100 ppm of GA3 on ‘Tamnara’ grape flower cluster at 14 days before flowering to find metabolites significantly related to seedlessness. Three bunches of grape flower samples were collected at nine different stages (Day before full bloom; DBF13, 10, 7, 5, 2, flowering (0) and day after full bloom; DAF 2, 5, 9). Metabolites of each collected sample were analyzed using GC-MS with derivatization method (MSTFA). Metabolite contents of GA3 treatment flower were compared with non-treated controls in all stages and analyzed using Partial least squares discriminate analysis (PLS-DA). As a result, five sampling times (DBF 13, 10, 2, 0, DAF 9) showed significance differences using GA3 treatments. Total of 13 metabolites were recognized to relate to differences in five specific sampling times and mainly affected the initial stages (DBF 13 and 10). Tartaric acid, D-glucose, phosphoric acid, and D-mannose, inositol were increased by GA3 treatment at the early-flower developing stage. Dehydroascorbic acid, caffeic acid, citric acid, and gluconic acid were mainly increased at the time of GA3 treatment but decreased approaching full bloom. All stages of GA3 treatment, L-glutamine, L-serine, and D-allose was decreased, but fructose increased. In particular, the metabolite contents before GA3 treatment provides new clues on the role of GA3 in the early stage of grape berry development

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