Comparative analysis of hypocotyl development in epiphytic, lignotuber-forming, and terrestrial Vaccinieae (Ericaceae)

Botany ◽  
2010 ◽  
Vol 88 (6) ◽  
pp. 556-564 ◽  
Author(s):  
Rodger C. Evans ◽  
Sam P. Vander Kloet
Keyword(s):  
Comparative Analysis ◽  
Vascular Tissue ◽  
Secondary Xylem ◽  
Water Storage ◽  
Random Networks ◽  
Adventitious Buds ◽  
Short Term ◽  
Vaccinium Angustifolium ◽  
Xylem Elements ◽  
Hypocotyl Development

A comparative analysis of hypocotyl development was undertaken with seedlings of three Vaccinieae (Ericaceae) species ( Macleania pentaptera Hoerold, Macleania rupestris (Kunth) A.C. Sm., and Vaccinium angustifolium Ait.) to determine the developmental basis for enlarged hypocotyls leading to the development of woody tubers (lignotubers) in M. pentaptera and M. rupestris. Differences in hypocotyl development are apparent after the first true leaves are visible in each species. Vascular tissue in M. rupestris and V. angustifolium is composed primarily of axial columns of secondary xylem. Secondary xylem tissues in M. pentaptera remain mostly parenchymatous and form radial columns of cells through numerous periclinal divisions. Furthermore, the secondary xylem of M. pentaptera comprises random networks of interconnected, small xylem elements in comparison with the secondary xylem of M. rupestris and V. angustifolium. These differences in hypocotyl development persist through the first 200 d of hypocotyl development, and ultimately lead to the development of a large lignotuber in M. pentaptera. Given the large amounts of parenchymatous tissue, a secondary xylem of relatively short secondary xylem elements, and the absence of adventitious buds, we propose that the lignotubers of M. pentaptera are used for short term water storage, rather than regeneration.

scholarly journals Comparative Analysis of Existing Tools for Assessment of Post-Earthquake Short-Term Lodging Needs

2016 ◽  
Vol 161 ◽  
pp. 2217-2221 ◽  
Author(s):  
Annibale Vecere ◽  
Ricardo Monteiro ◽  
Walter J. Ammann
Keyword(s):  
Comparative Analysis ◽  
Short Term

Conditions for the Introduction of Regulation for Short-Term Rentals

2021 ◽  
Vol 8 (1) ◽  
pp. 159-170
Author(s):  
Vilim Brezina ◽  
◽  
Jan Polívka ◽  
Martin Stark ◽  
◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Housing Market ◽  
Housing Stock ◽  
Qualitative Comparative Analysis ◽  
Short Term ◽  
Market Conditions ◽  
Qualitative And Quantitative ◽  
Market Situation ◽  
Necessary And Sufficient ◽  
German Cities

Most cities in major agglomerations in Europe started to address the rise of short-term accommodation rentals by introducing regulation designed to protect the local housing stock. The momentum behind the widespread introduction of such regulations can be attributed to qualitative and quantitative factors. This article examines selected fields related to short-term rentals in order to uncover the (structural) triggers or conditions that are necessary and sufficient for municipalities to initiate the regulation of their housing market. The study is based on the systematic examination of the effects of those triggers and their combinations using qualitative comparative analysis (QCA). With this method, we explore the implementation or non-implementation of regulation on a sample of major German cities. The results suggest a universal set of conditions covering three central fields: housing market situation, accommodation market conditions and tourism accommodation demand.

scholarly journals COMPARATIVE ANALYSIS OF LOW TEMPERATURE RESISTANCE FOR NANOCARBON AND OTHER BITUMENS

2020 ◽  
Vol 5 (443) ◽  
pp. 89-96
Author(s):  
Zhurinov M.Zh., ◽  
◽  
Teltayev B.B., ◽  
Kalybay A.A., ◽  
Rossi C.O., ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Low Temperature ◽  
Polyphosphoric Acid ◽  
Crumb Rubber ◽  
Petrochemical Plant ◽  
Short Term ◽  
Temperature Resistance ◽  
Coal Rock ◽  
Low Temperature Resistance

A comparative analysis of the low temperature resistance for a nanocarbon bitumen and other 30 neat and modified bitumens has been performed in the work. The stiffness at the temperatures of -24°С, -30°С and -36°С under technical system Superpave has been accepted as an indicator of low temperature resistance of the bitumens. The stiffness of the bitumens has been determined on a bending beam rheometer (standard ASTM D 6648-08). Before testing the bitumens have been subjected to the double artificial aging: short-term aging – under standard AASHTO Т 240-13 and long-term aging – under standard ASTM D 6521-08. The nanocarbon bitumen has been prepared in the laboratory of the Kazakhstan Highway Research Institute (KazdorNII) with the use of a road bitumen of the grade BND 70/100 produced by the Pavlodar petrochemical plant (PNHZ) and a nanocarbon powder (2% by weight) manufactured from a coal rock of the deposit “Saryadyr” “Corporation “ON-Olzha” LLP, Akmola region, Kazakhstan). The nanocarbon powder (150-200 nm) has been manufactured by three-stage size reduction of the coal rock: I – a mechanical dispergator (up to 2-3 mm), II – an aerodynamic mill (up to 20 mcm), III – a reactor with a rotating electromagnetic field. The neat bitumens of the grades BND 50/70, BND 70/100, BND 100/130 have been produced by the plants of Kazakhstan and Russia; they satisfy the requirements of the standard ST RK 1373-2013. The modified bitumens have been prepared in the laboratory of KazdorNII with the use of the neat bitumens, 7 types of the polymers, crumb rubber and polyphosphoric acid and they satisfy the requirements of the standard ST RK 2534-2014. It has been determined that the nanocarbon bitumen is one of the most resistant at the low temperatures: -24°С, -30°С and -36°С.

scholarly journals A Comparative Analysis Between LSTM and LSTM Ensembled Strategy for Short-term Load Forecasting

2021 ◽  
Author(s):  
Fathun Fattah ◽  
Pritom Mojumder ◽  
Azmol Ahmed Fuad ◽  
Mohiuddin Ahmad ◽  
Eklas hossain
Keyword(s):  
Comparative Analysis ◽  
Economic Impact ◽  
Ensemble Learning ◽  
Load Forecasting ◽  
Short Term ◽  
Short Term Load Forecasting ◽  
Utility Companies

This work entails producing load forecasting through lstm and lstm ensembled networks and put up a comparative picture between the two. Our work establishes that lstm ensemble learning can produce a better prediction compared to single lstm networks. We tried to quantify the improvement and assess the economic impact that it can have on the utility companies.

Comparative analysis of three metaheuristics for short-term open pit block sequencing

2016 ◽  
Vol 22 (3) ◽  
pp. 301-329 ◽  
Author(s):  
Amin Mousavi ◽  
Erhan Kozan ◽  
Shi Qiang Liu
Keyword(s):  
Comparative Analysis ◽  
Open Pit ◽  
Short Term

Regeneration of vascular tissue through redifferentiation of interxylary phloem after complete girdling in Aquilaria sinensis

IAWA Journal ◽  
2021 ◽  
pp. 1-16
Author(s):  
Bei Luo ◽  
Arata Yoshinaga ◽  
Tatsuya Awano ◽  
Keiji Takabe ◽  
Takao Itoh
Keyword(s):  
Time Course ◽  
Potential Role ◽  
Vascular Tissue ◽  
Secondary Xylem ◽  
Vascular Cambium ◽  
Aquilaria Sinensis ◽  
Phloem Fibers ◽  
Interxylary Phloem ◽  
Time Course Study

Abstract We studied the time-course of stem response for six months following complete girdling in branches of Aquilaria sinensis to determine the potential role of interxylary phloem (IP) in this response. It was found that the vascular cambium, as well as its derivative secondary xylem and phloem, regenerated fully through redifferentiation of IP. We confirmed that vascular cambium regenerated within one month after girdling based on observation of new vessels, IP, and secondary phloem fibers. The time-course study showed that IPs made connections with each other, merged, and became larger through the proliferation of IPs parenchyma cells and the cleaving of secondary xylem in a narrow zone 400 to 1000 μm deep inside the girdled edge. This led to the formation of a complete circular sheath of vascular cambium, followed by the regeneration of vascular tissue. It is worth noting that the secondary xylem is regenerated always following the formation of a thick belt of wound xylem.

Financial health of Syariah and non-Syariah banks: a comparative analysis

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Elok Heniwati ◽  
Nella Yantiana ◽  
Gita Desyana
Keyword(s):  
Comparative Analysis ◽  
Financial Stability ◽  
Influential Factors ◽  
Financial Health ◽  
Short Term ◽  
Liquid Asset ◽  
Content Type ◽  
Explanatory Variables ◽  
Insolvency Risk

Purpose This paper aims to investigate whether Syariah banks are more financially stable than non-Syariah banks and check the differential impact of explanatory variables in financial health and efficiency in the context of Indonesia. Design/methodology/approach By using unbalanced panel data from Bankfocus over the period 2011–2018, regression analysis is performed with two response variables representing financial health, ZSCORE for return on average assets, liquid asset to deposit and short-term funding ratio. A number of control variables are used as tools to confirm the hypotheses. To check the robustness of the findings, a model with different specifications has been used. Findings The results indicate that while Syariah banks present higher insolvency risk (less health) for long-term activity, the opposite is true for short-term activity. Other findings show that Syariah and non-Syariah banks contribute differently to the national system of financial stability owing to varying influential factors on the bank’s health. Originality/value This paper presents a comparative analysis between the financial stability of Syariah banks and that of non-Syariah banks in Indonesia by building an empirical framework that allows the author to examine the differential effects of each underlying feature on financial stability in Syariah and non-Syariah banks.

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