scholarly journals SAT-Chromosome of Triticum macha A Unique Feature Among Triticum Species

CYTOLOGIA ◽  
1955 ◽  
Vol 20 (2) ◽  
pp. 148-149 ◽  
Author(s):  
P. N. Bhaduri ◽  
P. N. Ghosh
Keyword(s):  
Unique Feature ◽  
Triticum Species ◽  
Triticum Macha

Silica Incorporation in the Cell Wall of the Singing Cell of Urtica dioica

1975 ◽  
Vol 33 ◽  
pp. 584-585
Author(s):  
A. E. Sowers ◽  
E. L. Thurston
Keyword(s):  
Cell Wall ◽  
Unique Feature ◽  
Urtica Dioica ◽  
Wall Material ◽  
Pain Response ◽  
Apical Portion ◽  
Ultrastructural Investigation ◽  
Plant Families ◽  
Bulbous Tip

Plant stinging emergences exhibit functional similarities in that they all elicit a pain response upon contact. A stinging emergence consists of an elongated stinging cell and a multicellular pedestal (Fig. 1). A recent ultrastructural investigation of these structures has revealed the ontogeny and morphology of the stinging cells differs in representative genera in the four plant families which possess such structures. A unique feature of the stinging cell of Urtica dioica is the presence of a siliceous cell wall in the apical portion of the cell. This rigid region of the cell wall is responsible for producing the needle-like apparatus which penetrates the skin. The stinging cell differentiates the apical bulbous tip early in development and the cell continues growth by intercalary addition of non-silicified wall material until maturity.The uppermost region of the stinging cell wall is entirely composed of silica (Fig. 2, 3) and upon etching with a 3% solution of HF (5 seconds), the silica is partially removed revealing the wall consisting of individualized silica bodies (Fig. 4, 5).

Study on the performance of an up-flow aerated biofilter (UAB) in municipal wastewater treatments

1994 ◽  
Vol 30 (11) ◽  
pp. 25-33 ◽  
Author(s):  
Yoshimasa Watanabe ◽  
Satoshi Okabe ◽  
Tomochika Arata ◽  
Yuji Haruta
Keyword(s):  
Organic Matter ◽  
Suspended Solids ◽  
Municipal Wastewater ◽  
Unique Feature ◽  
Aeration Rate ◽  
Loading Rates ◽  
Hydraulic Loading ◽  
Running Cost ◽  
And Performance ◽  
Activated Sludge Systems

A comprehensive wastewater treatment system that accomplishes oxidation of organic matter, nitrification, and denitrification was developed, and its characteristics and performance were investigated. A municipal wastewater was treated by an up-flow aerated biofilter (UAB), in which biofilms were developed on stainless meshes installed horizontally. This UAB exhibited a great potential ability of oxidation of organic matter, SS stabilization, and nitrification due to a unique aeration mechanism giving high DO concentrations with relatively low aeration rates. Another unique feature of the UAB was that attached biofilms on stainless meshes physically filtered out and/or adsorbed suspended solids in the wastewater in addition to the biological oxidation of organic matter. A stable nitrification could be achieved at HRT=10 hours corresponding to a hydraulic loading of 86 L m−2 d−1 and at a ratio of aeration rate to wastewater flow rate (A/W) of 2, which is considerably low as compared to aeration rates of typical activated sludge systems. This UAB system also could handle relatively high hydraulic loading rates. The UAB used in this study still have enough space to install more stainless meshes so as to reduce hydraulic loading rates resulting in the reduction of HRT and aeration rate, which leads to improvement of the system performance as well as reduction of the running cost.

Acids, bases and buffer solutions

2018 ◽  
Author(s):  
Dennis Sherwood ◽  
Paul Dalby
Keyword(s):  
First Principles ◽  
Buffer Capacity ◽  
Unique Feature ◽  
Dissociation Constants ◽  
Equilibrium Composition ◽  
Buffer Solutions ◽  
Acid And Base ◽  
Water Ph ◽  
Acids And Bases ◽  
Conjugate Bases

Many reactions in solution involve acids and bases, and so this chapter examines these important reactions in detail. Topics covered include the ionisation of water, pH, pOH, acids and bases, conjugate acids and conjugate bases, acid and base dissociation constants, the Henderson-Hasselbalch equation, the Henderson-Hasselbalch approximation, buffer solutions and buffer capacity. A unique feature of this chapter is a ‘first principles’ analysis of how a reaction buffered at a particular pH achieves an equilibrium composition different from that of the same reaction taking place in an unbuffered solution. This introduces some concepts which are important in understanding the biochemical standard state, as required for Chapter 23.

Reactions in solution

2018 ◽  
Author(s):  
Dennis Sherwood ◽  
Paul Dalby
Keyword(s):  
Phase Equilibria ◽  
Gas Phase ◽  
First Principles ◽  
Unique Feature ◽  
Life Sciences ◽  
Equilibrium Mixture ◽  
Second Law ◽  
Ideal Solution ◽  
Coupled Reactions ◽  
Definition Of

Another key chapter, examining reactions in solution. Starting with the definition of an ideal solution, and then introducing Raoult’s law and Henry’s law, this chapter then draws on the results of Chapter 14 (gas phase equilibria) to derive the corresponding results for equilibria in an ideal solution. A unique feature of this chapter is the analysis of coupled reactions, once again using first principles to show how the coupling of an endergonic reaction to a suitable exergonic reaction results in an equilibrium mixture in which the products of the endergonic reaction are present in much higher quantity. This demonstrates how coupled reactions can cause entropy-reducing events to take place without breaking the Second Law, so setting the scene for the future chapters on applications of thermodynamics to the life sciences, especially chapter 24 on bioenergetics.

Labor Migration to the Persian Gulf Monarchies

2020 ◽  
Author(s):  
Zahra R. Babar
Keyword(s):  
Persian Gulf ◽  
Labor Migration ◽  
Unique Feature ◽  
Migrant Populations ◽  
International Labor ◽  
The World ◽  
Permanent Settlement ◽  
Gulf States ◽  
Formal Integration ◽  
The Persian Gulf

The six oil monarchies of the Persian Gulf together form one of the most concentrated global sites of international labor migration, with some of the highest densities of non-citizens to citizens seen anywhere in the world. A somewhat unique feature of the region is that while it hosts millions of migrants, it allows almost no access to permanent settlement. Gulf States have hosted large cohorts of migrants for more than half a century but have done so without efforts toward formal integration through citizenship. Although labor migration as a phenomenon is both permanent and prominent, the Gulf States’ mechanism for governing migration systematically reinforces the temporariness and transience of their migrant populations.

scholarly journals Only the brave: improving self-rationing efficiency among discouraged Swiss SMEs

2021 ◽  
Author(s):  
Reto Wernli ◽  
Andreas Dietrich
Keyword(s):  
Unique Feature ◽  
Bank Loans ◽  
The Self ◽  
Bank Loan ◽  
Firm Characteristics ◽  
Policy Makers ◽  
Banking Market ◽  
Application Procedure ◽  
Discouraged Borrowers ◽  
New Evidence

AbstractWe conduct a survey among 1922 Swiss SMEs to analyze their access to bank loans. Credit-constrained SMEs are six times more likely to be discouraged than rejected. The most dominant reasons for being discouraged are too high collateral requirements, cumbersome application procedure, and the expectation of being turned down. Through a unique feature in the Swiss banking market, we also find new evidence for the importance of a strong firm–bank relationship. We challenge the assumption that discouraged borrowers are very similar to rejected borrowers. Our results indicate that the group of discouraged borrowers is more similar to the denied borrowers than to the group of approved borrowers, but only with respect to firm characteristics. For variables describing business development and firm–bank relationship, discouraged SMEs have less in common with credit-constrained firms than with their unconstrained counterparts. Even with a conservative prediction, about 60% of the discouraged firms would have obtained a bank loan if they had applied for one. The self-rationing mechanism observed is thus rather inefficient, and banks and policy makers should think about how to foster SMEs’ courage to apply for the bank loans they need.

Fluorescent nematic liquid crystalline oligomers with Reversible Texture and Photoluminescence response to Temperature

2021 ◽  
Author(s):  
Congcong Luo ◽  
bing yao ◽  
Hengheng Zhu ◽  
Xi-Hua Du ◽  
Yan Chen ◽  
...  
Keyword(s):  
Information Security ◽  
Liquid Crystalline ◽  
Unique Feature ◽  
External Stimulus ◽  
Luminescent Materials ◽  
Response To Temperature ◽  
Photoluminescence Response

Fluorescent liquid crystalline in luminescent materials have attracted interest for their unique feature of fluorescence in response to external stimulus and their applicability in information security and anti-counterfeiting. Herein, fluorescent...

scholarly journals Improving Web QoE Monitoring for Encrypted Network Traffic through Time Series Modeling

2021 ◽  
Vol 48 (4) ◽  
pp. 37-40
Author(s):  
Nikolas Wehner ◽  
Michael Seufert ◽  
Joshua Schuler ◽  
Sarah Wassermann ◽  
Pedro Casas ◽  
...  
Keyword(s):  
Neural Networks ◽  
Time Series ◽  
Recurrent Neural Networks ◽  
Quality Of Experience ◽  
Unique Feature ◽  
Time Series Modeling ◽  
Web Browsing ◽  
Large Dataset ◽  
Efficient Approximation

This paper addresses the problem of Quality of Experience (QoE) monitoring for web browsing. In particular, the inference of common Web QoE metrics such as Speed Index (SI) is investigated. Based on a large dataset collected with open web-measurement platforms on different device-types, a unique feature set is designed and used to estimate the RUMSI - an efficient approximation to SI, with machinelearning based regression and classification approaches. Results indicate that it is possible to estimate the RUMSI accurately, and that in particular, recurrent neural networks are highly suitable for the task, as they capture the network dynamics more precisely.

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