scholarly journals Fodder qualities of heterotic hybrids from intergeneric crosses between maize and eastern gamagrass

2020 ◽  
Vol 181 (1) ◽  
pp. 17-23
Author(s):  
P. A. Panikhin ◽  
V. A. Sokolov
Keyword(s):  
Biomass Yield ◽  
Theoretical Estimate ◽  
Biomass Productivity ◽  
The United States ◽  
Intergeneric Hybrids ◽  
High Yield ◽  
Forage Crops ◽  
Eastern Gamagrass ◽  
Starting Point ◽  
High Feed

Green biomass yield and fodder qualities are the starting point in the choice of forage crops. Maize, as a plant with the C4 pathway of photosynthesis, is highly efficient in transforming the energy of light into chemical bond energies, which ultimately leads to the highest yield per unit area of cultivated land. Its grain and green biomass possess good fodder qualities and are actively used in feed rations for cattle, smaller ruminants, and poultry. Eastern gamagrass (Tripsacum dactyloides L.), a wild relative of maize, is widespread over the plains of North and South Americas. To date, it has received universal recognition among breeders as a forage and fodder crop. More than 10 commercial cultivars have already been developed and cultivated in the United States. Eastern gamagrass is a C4 plant as well, characterized by high yield and high feed value of hay. We decided to combine in our research economically valuable qualities of this plant by developing apomictic intergeneric hybrids. This paper presents the results obtained in the process of assessing fodder qualities of apomictic maize × Tripsacum hybrids, where two maize genomes from the lines participating in hybrid selection for F1 seeds were added to the 36 chromosomes of eastern gamagrass. The maize × Tripsacum hybrid forms, produced during a number of years, persistently demonstrated an apomictic reproduction pattern and heterosis in green biomass productivity. Zootechnical analysis of plant samples showed that the hybrids, in which chromosomes of the lines used in commercial seed production to obtain heterosis in F1 had been added to the 36 chromosomes of eastern gamagrass, exceeded in their biochemical indicators the plants, in which 20 chromosomes from one of the maize lines earlier used in hybridization at our laboratory had been added. A theoretical estimate of green biomass yield calculated per hectare for the maize × Tripsacum hybrids is about 65 tons.

Morphological and physiological traits influencing biomass productivity in short-rotation coppice poplar

2004 ◽  
Vol 34 (7) ◽  
pp. 1488-1498 ◽  
Author(s):  
A M Rae ◽  
K M Robinson ◽  
N R Street ◽  
G Taylor
Keyword(s):  
Biomass Yield ◽  
Populus Deltoides ◽  
Hybrid Poplar ◽  
Biomass Productivity ◽  
Biomass Energy ◽  
Short Rotation Coppice ◽  
High Yield ◽  
Breeding Programs ◽  
Basal Diameter ◽  
Short Rotation

Fast-growing hybrid poplar (Populus spp.) have potential as a short-rotation coppice crop grown for biomass energy. This work identifies traits for fast growth studied in an American interspecific pedigree derived from Populus trichocarpa Torr. & A. Gray × Populus deltoides Marsh. grown in the United Kingdom for the first time. The biomass yield after the first coppice rotation was estimated to range from 0.04 to 23.68 oven-dried t·ha–1·year–1. This great range suggests that genotypes from this pedigree may be used to understand the genetic basis of high yield in short-rotation coppice, which would be advantageous for informing breeding programs for biomass crops. Relationships between stem, leaf, cell traits, and biomass yield were investigated. Partial least-squares analysis was used to order the traits by importance. The traits most influential on biomass were maximum stem height throughout the growing season, basal diameter, number of stems, and number of sylleptic branches, which showed high heritability, indicating excellent potential for breeding programs. The leaf traits, leaf area, number of leaves on the leading stem, and plastochron index were also associated with an increase in biomass, leading to a better understanding of this trait.

Overview of Current Approaches to Aural Rehabilitation for Adults With Cochlear Implants

2020 ◽  
Vol 5 (5) ◽  
pp. 1175-1187
Author(s):  
Rachel Glade ◽  
Erin Taylor ◽  
Deborah S. Culbertson ◽  
Christin Ray
Keyword(s):  
Health Care ◽  
Clinical Practice ◽  
Cochlear Implants ◽  
Practice Patterns ◽  
The United States ◽  
Care Providers ◽  
Aural Rehabilitation ◽  
Starting Point ◽  
Clinical Models ◽  
Hearing Health

Purpose This clinical focus article provides an overview of clinical models currently being used for the provision of comprehensive aural rehabilitation (AR) for adults with cochlear implants (CIs) in the Unites States. Method Clinical AR models utilized by hearing health care providers from nine clinics across the United States were discussed with regard to interprofessional AR practice patterns in the adult CI population. The clinical models were presented in the context of existing knowledge and gaps in the literature. Future directions were proposed for optimizing the provision of AR for the adult CI patient population. Findings/Conclusions There is a general agreement that AR is an integral part of hearing health care for adults with CIs. While the provision of AR is feasible in different clinical practice settings, service delivery models are variable across hearing health care professionals and settings. AR may include interprofessional collaboration among surgeons, audiologists, and speech-language pathologists with varying roles based on the characteristics of a particular setting. Despite various existing barriers, the clinical practice patterns identified here provide a starting point toward a more standard approach to comprehensive AR for adults with CIs.

Corruption as a Political Issue in Modern Societies: France, Great Britain and the United States in the Long 19th Century

Public Voices ◽  
2016 ◽  
Vol 10 (2) ◽  
pp. 68 ◽  
Author(s):  
Jens Ivo Engels
Keyword(s):  
United States ◽  
Great Britain ◽  
19Th Century ◽  
French Revolution ◽  
Political Corruption ◽  
The United States ◽  
Modern World ◽  
Political Issue ◽  
Starting Point ◽  
Bureaucratic State

The so-called “long 19th century”, from the French Revolution to the First World War, ranks as the crucial phase in the genesis of the modern world. In the Western countries this period was characterized by the differentiation of the public and the private spheres, the birth of the modern bureaucratic state and the delegitimation of early modern practices such as clientelism and patronage. All these fundamental changes are, among other things, usually considered important preconditions for the modern perception of corruption.This paper will concentrate on this crucial phase by means of a comparative analysis of debates in France, Great Britain and the United States, with the aim to elucidate the motives for major anti-corruption movements. The questions are: who fights against corruption and what are the reasons for doing so? I will argue that these concerns were often very different and sometimes accidental. Furthermore, an analysis of political corruption may reveal differences between the political cultures in the countries in question. Thus, the history of corruption serves as a sensor which enables a specific perspective on politics. By taking this question as a starting point the focus is narrowed to political corruption and the debates about corruption, while petty bribery on the part of minor civilservants, as well as the actual practice in the case of extensive political corruption, is left aside.

‘More Product, Less Process’ (MPLP): An early printed book project

2021 ◽  
pp. 096100062110267
Author(s):  
Karen Attar
Keyword(s):  
18Th Century ◽  
The United States ◽  
Global Changes ◽  
Main Research ◽  
Advantages And Disadvantages ◽  
Main Research Interest ◽  
Printed Books ◽  
Starting Point ◽  
19Th And 20Th Century

This article addresses the challenge to make printed hidden collections known quickly without sacrificing ultimate quality. It takes as its starting point the archival mantra ‘More product, less process’ and explores its application to printed books, mindful of projects in the United States to catalogue 19th- and 20th-century printed books quickly and cheaply with the help of OCLC. A problem is lack of time or managerial inclination ever to return to ‘quick and dirty’ imports. This article is a case study concerning a collection of 18th-century English imprints, the Graveley Parish Library, at Senate House Library, University of London. Faced with the need to provide metadata as quickly as possible for digitisation purposes, Senate House Library decided, in contrast to its normal treatment of early printed books, to download records from the English Short Title Catalogue and amend them only very minimally before releasing them for public view, and to do this work from catalogue cards rather than the books themselves. The article describes the Graveley Parish collection, the project method’s rationale, and the advantages and disadvantages of sourcing the English Short Title Catalogue for metadata. It discusses the drawbacks of retrospective conversion (cataloguing from cards, not books): insufficient detail in some cases to identify the relevant book, and ignorance of the copy-specific elements of books which can constitute the main research interest. The method is compared against cataloguing similar books from photocopies of title pages, and retrospective conversion using English Short Title Catalogue is compared against retrospective conversion of early printed Continental books from cards using Library Hub Discover or OCLC. The control groups show our method’s effectiveness. The project succeeded by producing records fast that fulfilled their immediate purpose and simultaneously would obviously require revisiting. The uniform nature of the collection enabled the saving of time through global changes.

scholarly journals Optimizing of Microalgae Scenedesmus sp. Biomass Production in Wet Market Wastewater Using Response Surface Methodology

2021 ◽  
Vol 13 (4) ◽  
pp. 2216
Author(s):  
Najeeha Mohd Apandi ◽  
Mimi Suliza Muhamad ◽  
Radin Maya Saphira Radin Mohamed ◽  
Norshuhaila Mohamed Sunar ◽  
Adel Al-Gheethi ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Biomass Yield ◽  
Biomass Productivity ◽  
Maximum Growth ◽  
Maximum Growth Rate ◽  
Aeration Rate ◽  
Composition Analysis ◽  
Wet Market ◽  
Central Composite

The present study aimed to optimize the production of Scenedesmus sp. biomass during the phycoremediation process. The biomass productivity was optimized using face centred central composite design (FCCCD) in response surface methodology (RSM) as a function of two independent variables that included wet market wastewater concentrations (A) with a range of 10% to 75% and aeration rate (B) with a range of 0.02 to 4.0 L/min. The results revealed that the highest biomass productivity (73 mg/L/d) and maximum growth rate (1.19 day−1) was achieved with the 64.26% of (A) and 3.08 L/min of (B). The GC-MS composition analysis of the biomass yield extract revealed that the major compounds are hexadecane (25%), glaucine (16.2%), and phytol (8.33%). The presence of these compounds suggests that WMW has the potential to be used as a production medium for Scenedesmus sp. Biomass, which has several applications in the pharmaceutical and chemical industry.

scholarly journals A Bibliometric Analysis of the Global Trend of Using Alginate, Gelatine, and Hydroxyapatite for Bone Tissue Regeneration Applications

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 647
Author(s):  
Mohamed Saiful Firdaus Hussin ◽  
Aludin Mohd Serah ◽  
Khairul Azri Azlan ◽  
Hasan Zuhudi Abdullah ◽  
Maizlinda Izwana Idris ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Bibliometric Analysis ◽  
Research Work ◽  
The United States ◽  
Research Area ◽  
Bone Tissue Regeneration ◽  
Future Research ◽  
Starting Point

Collecting information from previous investigations and expressing it in a scientometrics study can be a priceless guide to getting a complete overview of a specific research area. The aim of this study is to explore the interrelated connection between alginate, gelatine, and hydroxyapatite within the scope of bone tissue and scaffold. A review of traditional literature with data mining procedures using bibliometric analyses was considered to identify the evolution of the selected research area between 2009 and 2019. Bibliometric methods and knowledge visualization technologies were implemented to investigate diverse publications based on the following indicators: year of publication, document type, language, country, institution, author, journal, keyword, and number of citations. An analysis using a bibliometric study found that 7446 papers were located with the keywords “bone tissue” and “scaffold”, and 1767 (alginate), 185 (gelatine), 5658 (hydroxyapatite) papers with those specific sub keywords. The number of publications that relate to “tissue engineering” and bone more than doubled between 2009 (1352) and 2019 (2839). China, the United States and India are the most productive countries, while Sichuan University and the Chinese Academy of Science from China are the most important institutions related to bone tissue scaffold. Materials Science and Engineering C is the most productive journal, followed by the Journal of Biomedical Materials Research Part A. This paper is a starting point, providing the first bibliometric analysis study of bone tissue and scaffold considering alginate, gelatine and hydroxyapatite. A bibliometric analysis would greatly assist in giving a scientific insight to support desired future research work, not only associated with bone tissue engineering applications. It is expected that the analysis of alginate, gelatine and hydroxyapatite in terms of 3D bioprinting, clinical outcomes, scaffold architecture, and the regenerative medicine approach will enhance the research into bone tissue engineering in the near future. Continued studies into these research fields are highly recommended.

scholarly journals Physiological and transcriptional response to drought stress among bioenergy grass Miscanthus species

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Jose J. De Vega ◽  
Abel Teshome ◽  
Manfred Klaas ◽  
Jim Grant ◽  
John Finnan ◽  
...  
Keyword(s):  
Drought Stress ◽  
Water Supply ◽  
Biomass Yield ◽  
Transcriptional Response ◽  
Biomass Productivity ◽  
Differentially Expressed ◽  
Model Organisms ◽  
Drought Conditions ◽  
Multiple Copies ◽  
Response To Water

Abstract Background Miscanthus is a commercial lignocellulosic biomass crop owing to its high biomass productivity, resilience and photosynthetic capacity at low temperature. These qualities make Miscanthus a particularly good candidate for temperate marginal land, where yields can be limited by insufficient or excessive water supply. Differences in response to water stress have been observed among Miscanthus species, which correlated to origin. In this study, we compared the physiological and molecular responses among Miscanthus species under excessive (flooded) and insufficient (drought) water supply in glasshouse conditions. Results A significant biomass loss was observed under drought conditions in all genotypes. M. x giganteus showed a lower reduction in biomass yield under drought conditions compared to the control than the other species. Under flooded conditions, biomass yield was as good as or better than control conditions in all species. 4389 of the 67,789 genes (6.4%) in the reference genome were differentially expressed during drought among four Miscanthus genotypes from different species. We observed the same biological processes were regulated across Miscanthus species during drought stress despite the DEGs being not similar. Upregulated differentially expressed genes were significantly involved in sucrose and starch metabolism, redox, and water and glycerol homeostasis and channel activity. Multiple copies of the starch metabolic enzymes BAM and waxy GBSS-I were strongly up-regulated in drought stress in all Miscanthus genotypes, and 12 aquaporins (PIP1, PIP2 and NIP2) were also up-regulated in drought stress across genotypes. Conclusions Different phenotypic responses were observed during drought stress among Miscanthus genotypes from different species, supporting differences in genetic adaption. The low number of DEGs and higher biomass yield in flooded conditions supported Miscanthus use in flooded land. The molecular processes regulated during drought were shared among Miscanthus species and consistent with functional categories known to be critical during drought stress in model organisms. However, differences in the regulated genes, likely associated with ploidy and heterosis, highlighted the value of exploring its diversity for breeding.

scholarly journals Development, Validation and Application of a UHPLC-MS Method for the Quantification of Chios Mastic Gum Triterpenoids in Human Plasma

Planta Medica ◽  
2021 ◽  
Author(s):  
Vincent Brieudes ◽  
Eleni V. Mikropoulou ◽  
Errikos Kallergis ◽  
Andriana C. Kaliora ◽  
Efstathia Papada ◽  
...  
Keyword(s):  
Human Plasma ◽  
Biological Fluids ◽  
Structural Characteristics ◽  
Biological Properties ◽  
Lipid Lowering ◽  
High Yield ◽  
Limit Of Quantification ◽  
Isolation And Characterization ◽  
Starting Point ◽  
Chios Mastic Gum

AbstractChios mastic gum is the resinous secretion obtained from the barks of the shrub Pistacia lentiscus var. Chia, which is endemic to the Greek island of Chios. Since antiquity, Chios mastic gum has found several uses as a phytotherapeutic remedy, primarily for the treatment of gastrointestinal disorders while recently, Chios mastic gum was also recognized by EMA as an herbal medicinal product with specific indications. Chios mastic gumʼs biological properties are attributed to triterpenes which comprise the major chemical group (approx. 70%) and notably isomasticadienonic acid and masticadienonic acid. However, due to their structural characteristics, the isolation thereof in high yield and purity is challenging and since they are not commercially available, pharmacological studies aiming to assess their biological properties are limited. In the present work, masticʼs phytochemical investigation by UPLC-HRMS is followed by the isolation and characterization of isomasticadienonic acid and masticadienonic acid to be used as analytical standards for their accurate and reliable quantification in human plasma. A UHPLC-tQ-MS method that was developed and validated (in terms of specificity, linearity, limit of quantification, accuracy and precision), for the direct quantification of the targeted compounds in the low ng/mL range of concentration, was subsequently implemented on plasma samples of healthy volunteers thus demonstrating its fitness for purpose. The results presented herein might provide insight to the understanding of this traditional natural product consumed notably for its anti-inflammatory, antioxidant and lipid lowering properties. Moreover, this method might serve as a starting point for any study aiming to monitor bioactive triterpenes in biological fluids.

scholarly journals The Role of Value Stream Mapping in Healthcare Services: A Scoping Review

2021 ◽  
Vol 18 (3) ◽  
pp. 951
Author(s):  
Juan A. Marin-Garcia ◽  
Pilar I. Vidal-Carreras ◽  
Julio J. Garcia-Sabater
Keyword(s):  
Scoping Review ◽  
Healthcare Services ◽  
The United States ◽  
Environmental Indicators ◽  
Sustainability Indicators ◽  
Healthcare Sector ◽  
Value Stream Mapping ◽  
Value Stream ◽  
Starting Point

Lean healthcare aims to manage and improve the processes in the healthcare sector by eliminating everything that adds no value by improving quality of services, ensuring patient safety and facilitating health professionals’ work to achieve a flexible and reliable organization. Value Stream Mapping (VSM) is considered the starting point of any lean implementation. Some papers report applications of VSM in healthcare services, but there has been less attention paid to their contribution on sustainability indicators. The purpose of this work is to analyze the role of VSM in this context. To do so, a scoping review of works from recent years (2015 to 2019) was done. The results show that most applications of VSM reported are in the tertiary level of care, and the United States of America (USA) is the country which leads most of the applications published. In relation with the development of VSM, a heterogeneity in the maps and the sustainability indicators is remarkable. Moreover, only operational and social sustainability indicators are commonly included. We can conclude that more standardization is required in the development of the VSM in the healthcare sector, also including the environmental indicators.

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