Chemistry and applications of cyanoximes and their metal complexes

2019 ◽  
Vol 48 (23) ◽  
pp. 7985-8013 ◽  
Author(s):  
Nikolay Gerasimchuk
Keyword(s):  
Metal Complexes ◽  
General Formula ◽  
Research Effort ◽  
Organic Ligands ◽  
New Class ◽  
The Past ◽  
Considerable Research ◽  
Electron Withdrawing Group

During the past three decades, considerable research effort has been dedicated to a new class of organic ligands – cyanoximes – which have the general formula NC–C(NOH)-R, where R is an electron-withdrawing group. In total, 44 different cyanoximes were prepared and characterized thus far.

scholarly journals Analgesia for Sheep in Commercial Production: Where to Next?

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1127
Author(s):  
Alison Small ◽  
Andrew David Fisher ◽  
Caroline Lee ◽  
Ian Colditz
Keyword(s):  
Research Effort ◽  
Mitigation Strategies ◽  
Worth Living ◽  
Life Worth Living ◽  
The Past ◽  
Considerable Research ◽  
Husbandry Practices ◽  
Industry Practice ◽  
Successful Launch ◽  
Inflammatory Drugs

Increasing societal and customer pressure to provide animals with ‘a life worth living’ continues to apply pressure on livestock production industries to alleviate pain associated with husbandry practices, injury and illness. Over the past 15–20 years, there has been considerable research effort to understand and develop mitigation strategies for painful husbandry procedures in sheep, leading to the successful launch of analgesic approaches specific to sheep in a number of countries. However, even with multi-modal approaches to analgesia, using both local anaesthetic and non-steroidal anti-inflammatory drugs (NSAID), pain is not obliterated, and the challenge of pain mitigation and phasing out of painful husbandry practices remains. It is timely to review and reflect on progress to date in order to strategically focus on the most important challenges, and the avenues which offer the greatest potential to be incorporated into industry practice in a process of continuous improvement. A structured, systematic literature search was carried out, incorporating peer-reviewed scientific literature in the period 2000–2019. An enormous volume of research is underway, testament to the fact that we have not solved the pain and analgesia challenge for any species, including our own. This review has highlighted a number of potential areas for further research.

scholarly journals Hog Price Flexibilities as Related to Cycle Phases

1972 ◽  
Vol 4 (1) ◽  
pp. 119-122
Author(s):  
D. W. Parvin
Keyword(s):  
Research Effort ◽  
Pork Production ◽  
The Past ◽  
Net Returns ◽  
Considerable Research ◽  
Farm Price ◽  
Price Relationship ◽  
The Relationship

During the past decade, commercial pork production has varied from 723 to 1,372 million pounds (dressed weight) per month. For the same period, the average farm price of hogs has ranged from $12 to $30. Consequently, net returns to hog producers were highly variable.Agricultural economists have devoted considerable research effort to estimating the quantity-price relationship for pork. Purcell and Raunikar suggest that the relationship between price and quantity of pork may differ for positive and negative changes in the price of pork at the retail level.

Mechanochemical changes on cyclometalated Ir(iii) acyclic carbene complexes – design and tuning of luminescent mechanochromic transition metal complexes

2020 ◽  
Vol 7 (3) ◽  
pp. 786-794 ◽  
Author(s):  
Jingqi Han ◽  
Kin-Man Tang ◽  
Shun-Cheung Cheng ◽  
Chi-On Ng ◽  
Yuen-Kiu Chun ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Carbene Complexes ◽  
New Class

A new class of luminescent cyclometalated Ir(iii) complexes with readily tunable mechanochromic properties derived from the mechanically induced trans-to-cis isomerization have been developed.

Bi19S27I3 nanorods: a new candidate for photothermal therapy in the first and second biological near-infrared windows

Nanoscale ◽  
2021 ◽  
Author(s):  
Jinsong Xiong ◽  
Qinghuan Bian ◽  
Shuijin Lei ◽  
Yatian Deng ◽  
Kehan Zhao ◽  
...  
Keyword(s):  
Cancer Therapy ◽  
Photothermal Therapy ◽  
Near Infrared ◽  
Research Interest ◽  
The Past ◽  
Nir Light ◽  
Considerable Research ◽  
Key Factor

Near-infrared (NIR) light induced photothermal cancer therapy using nanomaterials as photothermal agents has attracted considerable research interest over the past few years. As the key factor in the photothermal therapy...

scholarly journals Unprecedented Coordination-Induced Bright Red Emission from Group 12 Metal-Bound Triarylazoimidazoles

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1739
Author(s):  
Artyom A. Astafiev ◽  
Olga V. Repina ◽  
Boris S. Tupertsev ◽  
Alexey A. Nazarov ◽  
Maria R. Gonchar ◽  
...  
Keyword(s):  
Visible Light ◽  
Metal Complexes ◽  
Scientific Literature ◽  
Photo Luminescence ◽  
Red Emission ◽  
The Past ◽  
Highly Efficient ◽  
Luminescence Emission ◽  
New Family ◽  
Group 12

Arylazoimidazoles are important dyes which were intensively studied in the past. In contrast, triarylazoimidazoles (derivatives which carry aryl substituents at the imidazole core) received almost no attention in the scientific literature. Here, we report a new family of simple and easily accessible triarylazoimidazole-group 12 metal complexes, which feature highly efficient photo-luminescence emission (Φ up to  0.44). Novel compounds exhibit bright red emission in solution, which could be excited with a visible light.

scholarly journals A theorized new class of polyhedral hydrocarbons of molecular formula CnHn and their bottom-up scaffold expansions into hyperstructures

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Camila M. B. Machado ◽  
Nathalia B. D. Lima ◽  
Sóstenes L. S. Lins ◽  
Alfredo M. Simas
Keyword(s):  
General Formula ◽  
Chemical Structure ◽  
Molecular Formula ◽  
Fusion Reactions ◽  
3D Scaffold ◽  
3D Scaffolds ◽  
Bottom Up ◽  
New Class ◽  
Euler’S Theorem ◽  
2D And 3D

AbstractWe address the use of Euler's theorem and topological algorithms to design 18 polyhedral hydrocarbons of general formula CnHn that exist up to 28 vertexes containing four- and six-membered rings only; compounds we call “nuggets”. Subsequently, we evaluated their energies to verify the likelihood of their chemical existence. Among these compounds, 13 are novel systems, of which 3 exhibit chirality. Further, the ability of all nuggets to perform fusion reactions either through their square faces, or through their hexagonal faces was evaluated. Indeed, they are potentially able to form bottom-up derived molecular hyperstructures with great potential for several applications. By considering these fusion abilities, the growth of the nuggets into 1D, 2D, and 3D-scaffolds was studied. The results indicate that nugget24a (C24H24) is predicted to be capable of carrying out fusion reactions. From nugget24a, we then designed 1D, 2D, and 3D-scaffolds that are predicted to be formed by favorable fusion reactions. Finally, a 3D-scaffold generated from nugget24a exhibited potential to be employed as a voxel with a chemical structure remarkably similar to that of MOF ZIF-8. And, such a voxel, could in principle be employed to generate any 3D sculpture with nugget24a as its level of finest granularity.

2,2-Dialkylacetic Acids -A New Class of Naturally Occurring Lipid Constituents

1995 ◽  
Vol 50 (1-2) ◽  
pp. 123-126 ◽  
Author(s):  
Gottfried Raab ◽  
Jürgen Jacob
Keyword(s):  
Retention Time ◽  
Relative Retention Time ◽  
Methyl Esters ◽  
South American ◽  
Time Data ◽  
New Class ◽  
The Past ◽  
Relative Retention ◽  
Naturally Occurring ◽  
Acetic Acids

Abstract The uropygial gland waxes of the South American red-legged Seriema (Cariama cristata (L., 1766)) were found to be composed of unbranched alcohols and 2,2′-dialkyl-substituted acetic acids which so far have not been found in skin lipids. When used as a chemosystematic character, the occurrence of this lipid class separates the order Cariamiformes (Seriemas) from all other avian orders hitherto investigated, especially from the Gruiformes (cranes and rails) to which they have been tentatively attributed in the past. From the GC retention time data now available for a series of 2-alkyl-substituted fatty acid methyl esters relative retention time indices for other compounds may be predicted.

Explosive Removal of Concrete From Reinforced Walls

2007 ◽  
Author(s):  
Denis D. Rickman ◽  
John Q. Ehrgott ◽  
Stephen A. Akers ◽  
Jon E. Windham ◽  
Dennis W. Moore
Keyword(s):  
Explosive Charge ◽  
Research Effort ◽  
Us Army ◽  
Steel Reinforced Concrete ◽  
The Past ◽  
The Us ◽  
Development Center ◽  
The Relationship ◽  
Improved Methods ◽  
Combat Environment

During the past several years, the US Army has focused considerable attention toward developing improved methods for breaching walls in the urban combat environment. A major thrust area is centered on finding improved methods to breach the toughest wall type that Army units are likely to face: a double (steel) reinforced concrete (RC) wall. One impediment to this effort is that the relationship between the contact explosive charge configuration and the quantity of concrete removed has not been thoroughly understood. The U.S. Army Engineer Research and Development Center has conducted a research effort to better define the effectiveness of various explosive charge configurations in breaching RC walls. This paper presents a discussion of results from this research.

scholarly journals Raising standards in performance

2001 ◽  
Vol 18 (3) ◽  
pp. 251-259 ◽  
Author(s):  
Robert Davis ◽  
Mark Pulman
Keyword(s):  
Instrumental Performance ◽  
Public Performance ◽  
Music Department ◽  
Curriculum Changes ◽  
The Past ◽  
Considerable Research ◽  
The Way

Over the past few years, instrumental performance has been subject to considerable research in this journal and elsewhere. A great deal of this research has concentrated on the practice strategies and individual lessons, which most students undertake in preparing as performers. Little has been done on raising standards of performance on a larger scale within the context of a large music department. This article describes the outcomes of a two-year programme undertaken with undergraduates at Barnsley College. It looks specifically at the scope for curriculum changes over that period and the way the various individual aspects of performance lessons are brought together through a weekly class which focuses on the demands of a public performance and the strategies required to prepare for that event.

scholarly journals Precariat: from a proto-class to a new class. Review of the monograph of Zh.T. Toshchenko

2021 ◽  
Vol 27 (2) ◽  
pp. 218-224
Author(s):  
S. V. Kozin
Keyword(s):  
Social Class ◽  
Statistical Data ◽  
Publishing House ◽  
Russian Society ◽  
The Gaze ◽  
New Class ◽  
The Past ◽  
Clear Vision ◽  
Number Of Classes ◽  
Academy Of Sciences

As you know, the study of the past, present and such a vague future of society (and its number of classes) still attracts the gaze of many representatives of the scientific academic society (including colleagues in the sociological workshop). This article is a review of the monograph of corresponding member of the Russian Academy of Sciences Zh.T. Toshchenko “Precariat: from the proto-class to the new class”, published in 2018 by “Nauka” publishing house. The monograph allows the reader to feel how rapidly the socio-class structure of foreign, Soviet, and then Russian society was changing. In it, Zh.T. Toshchenko clearly reflects the historical aspects of the development and functioning of a new social class — the “precariat”. The conclusion is proved that the precariat does not have a clear vision of its future, confidence in the security of its personal life and the guarantee of a quiet old age at the end of employment. An impressive number of foreign and domestic statistical data further confirms the conclusions of reasonable Zh.T. Toshchenko. In the future, the author of the monograph explores the consequences of the existence and functioning of this new social-class phenomenon.

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