Effect of Hydrated Deep Eutectic Solvents on the Thermal Stability of DNA

DNA’s structure stability in hydrated deep eutectic solvents (DESs) is getting growing attention for emerging bio-applications. The employment of DESs as novel co-solvents in water media could favor eco-friendly and biodegradable materials for DNA storage and handling. Understanding the molecular interactions between nucleic acids and aqueous DES is crucial for developing new-generation solvents for biomolecules. In this work, we exploit the molecular sensitivity and selectivity of synchrotron radiation UV resonance raman (SR-UVRR) spectroscopy to explore the interplay between a choline chloride:urea (ChCl:U) DES and double-stranded DNA. Our study analyzes the impact of ChCl:U on the DNA’s thermal unfolding pathway by focusing on the guanine nucleobases whose Raman signal could be strongly enhanced through careful tuning of the excitation wavelength.

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Overcoming stereotypes of renewable energy

Voprosy Ekonomiki ◽

10.32609/0042-8736-2019-4-124-136 ◽

2019 ◽

pp. 124-136

Author(s):

Victor D. Gazman

Keyword(s):

Renewable Energy ◽

Empirical Analysis ◽

Energy Generation ◽

New Paradigm ◽

Financial Instrument ◽

Promising Direction ◽

Investment Projects ◽

Power Stations ◽

New Generation ◽

The Impact

The article considers prerequisites for the formation of a new paradigm in the energy sector. The factors that may affect the imminent change of leadership among the energy generation are analyzed. The variability of the projects of creation and functioning of power stations is examined. The focus is made on problematic aspects of the new generation, especially, storage and supply of energy, achieving a system of parity that ensures balance in pricing generations. The author substantiates the principles of forming system of parities arising when comparing traditional and new generations. The article presents the results of an empirical analysis of the 215 projects for the construction of facilities for renewable energy. The significance and direction of the impact of these factors on the growth in investment volumes of transactions are determined. The author considers leasing as an effective financial instrument for overcoming stereotypes of renewable energy and as a promising direction for accelerated implementation of investment projects.

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Controllable Electrochemical Synthesis of Ag Hierarchical Micro/Nanostructures with High SERS-Activity

NANO ◽

10.1142/s1793292020500435 ◽

2020 ◽

Vol 15 (04) ◽

pp. 2050043

Author(s):

Huayu Zhou ◽

Jingjing Wang ◽

Qiong Yang ◽

Menglei Chen ◽

Changsheng Song ◽

...

Keyword(s):

Indium Tin Oxide ◽

Current System ◽

Three Dimensional ◽

Constant Current ◽

Localized Surface Plasmon ◽

Excitation Wavelength ◽

Raman Signal ◽

Mixed Solution ◽

Raman Enhancement ◽

One Step

We report a one-step electrochemical deposition technique to prepare three-dimensional (3D) Ag hierarchical micro/nanostructured film consisting of well-crystallized Ag nanosheets grown on an indium tin oxide (ITO) conductive substrate. The Ag hierarchical micro/nanostructures were fabricated in the mixed solution of AgNO3 and sodium citrate in a constant current system at room temperature. Through reduction of Ag[Formula: see text] electrodeposited on the surface of ITO substrate, nanoparticles were grown to form nanosheets which further combined into 3D sphere-like microstructures. The 3D Ag micro/nanostructures have many sharp edges and nanoscale gaps which can give rise to good Raman-enhanced effect. Due to localized surface plasmon resonance (LSPR) effects, these special Ag micro/nanostructures exhibited good Raman-enhanced performance. Using Rhodamine 6G (R6G) molecules as probe molecule, we studied the influence of excitation wavelength on Raman enhancement. The results showed that the 532[Formula: see text]nm excitation wavelength is the best to obtain the strongest Raman signal and to reduce the influence of other impurity peaks. Using the as-synthesized Ag hierarchical micro/nanostructures, we can detect the 10[Formula: see text][Formula: see text]mol/L R6G aqueous solution, exhibiting great Raman-enhanced effect.

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The Impact of Initial Conditions in N-Body Simulations of Debris Discs

Publications of the Astronomical Society of Australia ◽

10.1017/pasa.2015.41 ◽

2015 ◽

Vol 32 ◽

Cited By ~ 4

Author(s):

E. Thilliez ◽

S. T. Maddison

Keyword(s):

Numerical Simulations ◽

Initial Conditions ◽

Parent Body ◽

Dust Trapping ◽

Physical Context ◽

Disc Width ◽

Wide Range ◽

Belt Width ◽

New Generation ◽

The Impact

AbstractNumerical simulations are a crucial tool to understand the relationship between debris discs and planetary companions. As debris disc observations are now reaching unprecedented levels of precision over a wide range of wavelengths, an appropriate level of accuracy and consistency is required in numerical simulations to confidently interpret this new generation of observations. However, simulations throughout the literature have been conducted with various initial conditions often with little or no justification. In this paper, we aim to study the dependence on the initial conditions of N-body simulations modelling the interaction between a massive and eccentric planet on an exterior debris disc. To achieve this, we first classify three broad approaches used in the literature and provide some physical context for when each category should be used. We then run a series of N-body simulations, that include radiation forces acting on small grains, with varying initial conditions across the three categories. We test the influence of the initial parent body belt width, eccentricity, and alignment with the planet on the resulting debris disc structure and compare the final peak emission location, disc width and offset of synthetic disc images produced with a radiative transfer code. We also track the evolution of the forced eccentricity of the dust grains induced by the planet, as well as resonance dust trapping. We find that an initially broad parent body belt always results in a broader debris disc than an initially narrow parent body belt. While simulations with a parent body belt with low initial eccentricity (e ~ 0) and high initial eccentricity (0 < e < 0.3) resulted in similar broad discs, we find that purely secular forced initial conditions, where the initial disc eccentricity is set to the forced value and the disc is aligned with the planet, always result in a narrower disc. We conclude that broad debris discs can be modelled by using either a dynamically cold or dynamically warm parent belt, while in contrast eccentric narrow debris rings are reproduced using a secularly forced parent body belt.

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Measuring Key Quality Indicators in Cloud Gaming: Framework and Assessment Over Wireless Networks

Sensors ◽

10.3390/s21041387 ◽

2021 ◽

Vol 21 (4) ◽

pp. 1387

Author(s):

Oswaldo Sebastian Peñaherrera-Pulla ◽

Carlos Baena ◽

Sergio Fortes ◽

Eduardo Baena ◽

Raquel Barco

Keyword(s):

Communication Networks ◽

Mobile Networks ◽

Video Game ◽

Know How ◽

Fifth Generation ◽

New Generation ◽

Graphics Rendering ◽

The Impact

Cloud Gaming is a cutting-edge paradigm in the video game provision where the graphics rendering and logic are computed in the cloud. This allows a user’s thin client systems with much more limited capabilities to offer a comparable experience with traditional local and online gaming but using reduced hardware requirements. In contrast, this approach stresses the communication networks between the client and the cloud. In this context, it is necessary to know how to configure the network in order to provide service with the best quality. To that end, the present work defines a novel framework for Cloud Gaming performance evaluation. This system is implemented in a real testbed and evaluates the Cloud Gaming approach for different transport networks (Ethernet, WiFi, and LTE (Long Term Evolution)) and scenarios, automating the acquisition of the gaming metrics. From this, the impact on the overall gaming experience is analyzed identifying the main parameters involved in its performance. Hence, the future lines for Cloud Gaming QoE-based (Quality of Experience) optimization are established, this way being of configuration, a trendy paradigm in the new-generation networks, such as 4G and 5G (Fourth and Fifth Generation of Mobile Networks).

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The methodology for assessing the impact of new generation superplasticizers on air content in self-compacting concrete

Construction and Building Materials ◽

10.1016/j.conbuildmat.2013.11.092 ◽

2014 ◽

Vol 53 ◽

pp. 488-502 ◽

Cited By ~ 28

Author(s):

Beata Łaźniewska-Piekarczyk

Keyword(s):

Self Compacting Concrete ◽

Air Content ◽

New Generation ◽

The Impact

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“The New Generation”: Mental Hygiene and the Portrayals of Children by the National Film Board of Canada, 1946–1967

History of Education Quarterly ◽

10.1111/j.1748-5959.2003.tb00134.x ◽

2003 ◽

Vol 43 (4) ◽

pp. 540-570 ◽

Cited By ~ 2

Author(s):

Brian J. Low

Keyword(s):

Social Relations ◽

Mental Hygiene ◽

Social Attitudes ◽

Child Rearing ◽

Mass Psychology ◽

National Film Board ◽

The Mind ◽

Schooling Practices ◽

New Generation ◽

The Impact

That is the achievement of the psychologists. In our own society they are very kind, and do everything for our own good. The tales of what they do elsewhere are rather terrifying.—Hilda NeatbySo Little for the Mind (1953)Documenting the impact of the mental hygiene movement has been problematical for historians. The hygienists operated in the realm of mass psychology and social relations, within the “mentalities” of children—particularly of the postwar generation—who have left little observable evidence of changing social attitudes and relationships resulting from changes to mass child-rearing and schooling practices. The influence of the movement upon parenting literature and curricular documents may be readily observed in postwar baby books, magazines, newspapers, radio scripts, and films, as well as in the changing language of educational theorists and practitioners. But as to seeing the actual effects of this material upon any society, documentary evidence has remained elusive.

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Green Synthesis of 2-thioxothiazolidin-4-one Derivatives in Deep Eutectic Solvents via Knoevenagel Condensation

Letters in Organic Chemistry ◽

10.2174/1570178619666220112121638 ◽

2022 ◽

Vol 19 ◽

Author(s):

Melita Lončarić ◽

MAJA MOLNAR

Keyword(s):

Chemical Synthesis ◽

Green Synthesis ◽

Environmental Pollution ◽

Knoevenagel Condensation ◽

Choline Chloride ◽

Deep Eutectic Solvents ◽

Model Reaction ◽

Methods And Techniques ◽

New Generation ◽

Toxic Organic Solvents

Abstract: Recently, more and more researchers are resorting to green methods and techniques to avoid environmental pollution. Accordingly, many researchers have been working on the development of new green synthetic procedures trying to avoid the use of toxic organic solvents. A sustainable concept of green and environmentally friendly solvents in chemical synthesis nowadays encompasses a relatively new generation of solvents called deep eutectic solvents (DESs). DESs often have a dual role in the synthesis, acting as both, solvents and catalysts. In this study, DESs are used in the Knoevenagel synthesis of rhodanine derivatives, with no addition of conventional catalysts. A model reaction of rhodanine and salicylaldehyde was performed in 20 different DESs at 80 °C, in order to find the best solvent, which was further used for the synthesis of the series of desired compounds. A series of rhodanines was synthesized in choline chloride: acetamide (ChCl:acetamide) DES with good to excellent yields (51.4 – 99.7 %).

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China's Rural Migrant Workers, the State, and Labor Politics

10.31219/osf.io/b6wn7 ◽

2017 ◽

Author(s):

Jenny Chan ◽

Mark Selden

Keyword(s):

Migrant Workers ◽

The State ◽

Labor Politics ◽

Rural Migrant ◽

Industrial Labor ◽

Class Power ◽

The Individual ◽

New Generation ◽

The Impact ◽

Rural Migrant Workers

The proletarianization of rural migrants is distinctive to contemporary China's development model, in which the state has fostered the growth of a “semi-proletariat” numbering more than 200 million to fuel labor-intensive industries and urbanization. Drawing on fieldwork in Guangdong and Sichuan provinces between 2010 and 2014, supplemented with scholarly studies and government surveys, the authors analyze the precarity and the individual and collective struggles of a new generation of rural migrant workers. They present an analysis of high and growing levels of labor conflict at a time when the previous domination of state enterprises has given way to the predominance of migrant workers as the core of an expanding industrial labor force. In particular, the authors assess the significance of the growing number of legal and extra-legal actions taken by workers within a framework that highlights the deep contradictions among labor, capital, and the Chinese state. They also discuss the impact of demographic changes and geographic shifts of population and production on the growth of working-class power in the workplace and the marketplace.

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Перспективы применения гуминового комплекса на виноградниках Крыма

Magarach. Vinogradstvo i Vinodelie ◽

10.35547/im.2019.21.2.009 ◽

2019 ◽

pp. 122-127

Author(s):

Magometsaigit Beibulatov ◽

Nadezhda Tikhomirova ◽

Natalia Urdenko ◽

Roman Buival ◽

Yana Radionovskaya

Keyword(s):

Positive Impact ◽

Cabernet Sauvignon ◽

Wine Grapes ◽

Total Sugars ◽

Table Grapes ◽

New Generation ◽

The Impact ◽

Positive Effect ◽

Average Cluster

В статье представлены результаты двухлетних исследований по изучению влияния внекорневых подкормок гуминовым препаратом нового поколения GSN-2004 HUMILIFEтм (ОСН-2004) на урожай и качество винограда столового сорта Мускат янтарный и технического сорта Каберне-Совиньон в условиях Южного берега Крыма. По результатам исследований 2017-2018 гг. установлено, что внекорневые подкормки изучаемым препаратом разработанной нормой 4 л/га, способствуют увеличению урожайности винограда сорта Мускат янтарный в среднем на 23,9%, при этом повышение урожайности составляет 2,7 т/га. Урожайность винограда сорта Каберне-Совиньон увеличивается на 26,5%, при этом повышение урожайности составляет 2,2 т/га. Подтверждено положительное влияние внекорневых подкормок на показатели качества винограда сорта Мускат янтарный, которое выразилось в увеличении средней массы грозди у изучаемого сорта на 40,3%, увеличении массовой концентрации сахаров в соке ягод на 5,4% и увеличении значений глюкоацидометрического показателя (ГАП) на 15,6%. Положительное влияние внекорневых подкормок на показатели качества винограда сорта Каберне-Совиньон выразилось в увеличении средней массы грозди на 23,0% и увеличении массовой концентрации сахаров в соке ягод на 7,1%.The paper summarizes findings of a two-year study on the impact of foliar fertilizing with a new generation humic preparation GSN-2004 HUMILIFEтм (ОСН-2004) on the harvest and quality of ‘Muscat Yantarniy’ table grapes and ‘Cabernet Sauvignon’ wine grapes in the conditions of the southern coast of Crimea. The data of the 2017-2018 study established that foliar dressing with the preparation under study in the ratio of 4 l/ha increases the harvest of ‘Muscat Yantarniy’ grapes on average by 23.9%, or by 2 t/ha. The yield of ‘Cabernet Sauvignon’ grapes was increased by 26.5%, thus increasing the harvest by 2.2 t/ha. The positive impact of foliar dressing on quality indicators of ‘Muscat Yantarniy’ grapes was confirmed. Thus, the average cluster weight increased by 40.3%, total sugars in the berry juice increased by 5.4 %, and gluco-acidometric index increased by 158.06 %. The study confirmed the positive effect of foliar dressing on quality characteristics of ‘Cabernet Sauvignon’ grapes, as demonstrated by a 23% increase in the average cluster weight and a 7.1 % increase in the total sugars in the berry juice.

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